Merge remote-tracking branch 'anholt/glamor-external-rebase'

42 files changed, 20996 insertions, 0 deletions

diff --git a/glamor/Makefile.am b/glamor/Makefile.am
new file mode 100644
index 000000000..2fd521f11
--- /dev/null
+++ b/glamor/Makefile.am
@@ -0,0 +1,71 @@
+lib_LTLIBRARIES = libglamor.la
+
+if GLAMOR_GLES2
+libglamor_la_LIBADD = $(GLESV2_LIBS)
+else
+libglamor_la_LIBADD = $(GL_LIBS)
+endif
+
+AM_CFLAGS = $(CWARNFLAGS) $(XORG_CFLAGS) $(LIBDRM_CFLAGS)
+
+libglamor_la_LDFLAGS = -version-info 0:0:0
+
+libglamor_la_SOURCES = \
+	compat-api.h \
+	compiler.h \
+	glamor.c \
+	glamor_copyarea.c \
+	glamor_copywindow.c \
+	glamor_core.c \
+	glamor_debug.h \
+	glamor_gl_dispatch.h \
+	glamor_fill.c \
+	glamor_fillspans.c \
+	glamor_getspans.c \
+	glamor_glext.h \
+	glamor_glyphs.c \
+	glamor_polyfillrect.c \
+	glamor_polylines.c \
+	glamor_putimage.c \
+	glamor_setspans.c \
+	glamor_render.c \
+	glamor_gradient.c \
+	glamor_trapezoid.c \
+	glamor_tile.c \
+	glamor_triangles.c\
+	glamor_addtraps.c\
+	glamor_getimage.c\
+	glamor_copyplane.c\
+	glamor_glyphblt.c\
+	glamor_polyops.c\
+	glamor_priv.h\
+	glamor_pixmap.c\
+	glamor_largepixmap.c\
+	glamor_picture.c\
+	glamor_window.c\
+	glamor_gl_dispatch.c\
+	glamor_fbo.c\
+	glamor_compositerects.c\
+	glamor_xv.c\
+	glamor_utils.h\
+	glamor.h\
+	glapi.h
+
+sdk_HEADERS = glamor.h
+
+if EGL
+LIBGLAMOREGL = libglamoregl.la
+module_LTLIBRARIES = $(LIBGLAMOREGL)
+libglamoregl_la_DEPENDENCIES = libglamor.la
+libglamoregl_la_LDFLAGS = -avoid-version -module
+libglamoregl_la_LIBADD = $(EGL_LIBS) $(GLX_SYS_LIBS) $(GBM_LIBS) libglamor.la
+libglamoregl_la_SOURCES = glamor_eglmodule.c glamor_egl.c
+libglamoregl_la_CFLAGS = \
+	$(AM_CFLAGS) \
+	$(GLX_DEFINES) \
+	$(LIBDRM_CFLAGS) \
+	$(EGL_CFLAGS) \
+	$(GBM_CFLAGS)
+endif
+
+
diff --git a/glamor/compat-api.h b/glamor/compat-api.h
new file mode 100644
index 000000000..1608478f8
--- /dev/null
+++ b/glamor/compat-api.h
@@ -0,0 +1,107 @@
+/*
+ * Copyright 2012 Red Hat, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * Author: Dave Airlie <airlied@redhat.com>
+ */
+
+/* this file provides API compat between server post 1.13 and pre it,
+   it should be reused inside as many drivers as possible */
+#ifndef COMPAT_API_H
+#define COMPAT_API_H
+
+#ifndef GLYPH_HAS_GLYPH_PICTURE_ACCESSOR
+#define GetGlyphPicture(g, s) GlyphPicture((g))[(s)->myNum]
+#define SetGlyphPicture(g, s, p) GlyphPicture((g))[(s)->myNum] = p
+#endif
+
+#ifndef XF86_HAS_SCRN_CONV
+#define xf86ScreenToScrn(s) xf86Screens[(s)->myNum]
+#define xf86ScrnToScreen(s) screenInfo.screens[(s)->scrnIndex]
+#endif
+
+#ifndef XF86_SCRN_INTERFACE
+
+#define SCRN_ARG_TYPE int
+#define SCRN_INFO_PTR(arg1) ScrnInfoPtr scrn = xf86Screens[(arg1)]
+
+#define SCREEN_ARG_TYPE int
+#define SCREEN_PTR(arg1) ScreenPtr screen = screenInfo.screens[(arg1)]
+
+#define SCREEN_INIT_ARGS_DECL int scrnIndex, ScreenPtr screen, int argc, char **argv
+
+#define BLOCKHANDLER_ARGS_DECL int arg, pointer blockData, pointer timeout, pointer read_mask
+#define BLOCKHANDLER_ARGS arg, blockData, timeout, read_mask
+
+#define WAKEUPHANDLER_ARGS_DECL int arg, pointer wakeupData, unsigned long result, pointer read_mask
+#define WAKEUPHANDLER_ARGS arg, wakeupData, result, read_mask
+
+#define CLOSE_SCREEN_ARGS_DECL int scrnIndex, ScreenPtr screen
+#define CLOSE_SCREEN_ARGS scrnIndex, screen
+
+#define ADJUST_FRAME_ARGS_DECL int arg, int x, int y, int flags
+#define ADJUST_FRAME_ARGS(arg, x, y) (arg)->scrnIndex, x, y, 0
+
+#define SWITCH_MODE_ARGS_DECL int arg, DisplayModePtr mode, int flags
+#define SWITCH_MODE_ARGS(arg, m) (arg)->scrnIndex, m, 0
+
+#define FREE_SCREEN_ARGS_DECL int arg, int flags
+#define FREE_SCREEN_ARGS	arg, flags
+
+#define VT_FUNC_ARGS_DECL int arg, int flags
+#define VT_FUNC_ARGS(flags) scrn->scrnIndex, (flags)
+
+#define XF86_ENABLEDISABLEFB_ARG(x) ((x)->scrnIndex)
+
+#else
+#define SCRN_ARG_TYPE ScrnInfoPtr
+#define SCRN_INFO_PTR(arg1) ScrnInfoPtr scrn = (arg1)
+
+#define SCREEN_ARG_TYPE ScreenPtr
+#define SCREEN_PTR(arg1) ScreenPtr screen = (arg1)
+
+#define SCREEN_INIT_ARGS_DECL ScreenPtr screen, int argc, char **argv
+
+#define BLOCKHANDLER_ARGS_DECL ScreenPtr arg, pointer timeout, pointer read_mask
+#define BLOCKHANDLER_ARGS arg, timeout, read_mask
+
+#define WAKEUPHANDLER_ARGS_DECL ScreenPtr arg, unsigned long result, pointer read_mask
+#define WAKEUPHANDLER_ARGS arg, result, read_mask
+
+#define CLOSE_SCREEN_ARGS_DECL ScreenPtr screen
+#define CLOSE_SCREEN_ARGS screen
+
+#define ADJUST_FRAME_ARGS_DECL ScrnInfoPtr arg, int x, int y
+#define ADJUST_FRAME_ARGS(arg, x, y) arg, x, y
+
+#define SWITCH_MODE_ARGS_DECL ScrnInfoPtr arg, DisplayModePtr mode
+#define SWITCH_MODE_ARGS(arg, m) arg, m
+
+#define FREE_SCREEN_ARGS_DECL ScrnInfoPtr arg
+#define FREE_SCREEN_ARGS	arg
+
+#define VT_FUNC_ARGS_DECL ScrnInfoPtr arg
+#define VT_FUNC_ARGS(flags) scrn
+
+#define XF86_ENABLEDISABLEFB_ARG(x) (x)
+
+#endif
+#endif
diff --git a/glamor/compiler.h b/glamor/compiler.h
new file mode 100644
index 000000000..fa2895976
--- /dev/null
+++ b/glamor/compiler.h
@@ -0,0 +1,59 @@
+/*
+ * Copyright (c) 2011 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ * Authors:
+ *    Chris Wilson <chris@chris-wilson.co.uk>
+ *
+ *    Copied from sna 
+ *
+ */
+
+#ifndef _GLAMOR_COMPILER_H_
+#define _GLAMOR_COMPILER_H_
+
+#if defined(__GNUC__) && (__GNUC__ > 2) && defined(__OPTIMIZE__)
+#define likely(expr) (__builtin_expect (!!(expr), 1))
+#define unlikely(expr) (__builtin_expect (!!(expr), 0))
+#define noinline __attribute__((noinline))
+#define fastcall __attribute__((regparm(3)))
+#define must_check __attribute__((warn_unused_result))
+#define constant __attribute__((const))
+#else
+#define likely(expr) (expr)
+#define unlikely(expr) (expr)
+#define noinline
+#define fastcall
+#define must_check
+#define constant
+#endif
+
+#ifdef HAVE_VALGRIND
+#define VG(x) x
+#else
+#define VG(x)
+#endif
+
+#define VG_CLEAR(s) VG(memset(&s, 0, sizeof(s)))
+
+#define COMPILE_TIME_ASSERT(E) ((void)sizeof(char[1 - 2*!(E)]))
+
+#endif /* _SNA_COMPILER_H_ */
diff --git a/glamor/glamor.c b/glamor/glamor.c
new file mode 100644
index 000000000..93d3c5e72
--- /dev/null
+++ b/glamor/glamor.c
@@ -0,0 +1,628 @@
+/*
+ * Copyright © 2008 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ *
+ * Authors:
+ *    Eric Anholt <eric@anholt.net>
+ *    Zhigang Gong <zhigang.gong@linux.intel.com>
+ *
+ */
+
+/** @file glamor.c
+ * This file covers the initialization and teardown of glamor, and has various
+ * functions not responsible for performing rendering.
+ */
+
+#include <stdlib.h>
+
+#include "glamor_priv.h"
+
+static DevPrivateKeyRec glamor_screen_private_key_index;
+DevPrivateKey glamor_screen_private_key = &glamor_screen_private_key_index;
+static DevPrivateKeyRec glamor_pixmap_private_key_index;
+DevPrivateKey glamor_pixmap_private_key = &glamor_pixmap_private_key_index;
+
+/**
+ * glamor_get_drawable_pixmap() returns a backing pixmap for a given drawable.
+ *
+ * @param drawable the drawable being requested.
+ *
+ * This function returns the backing pixmap for a drawable, whether it is a
+ * redirected window, unredirected window, or already a pixmap.  Note that
+ * coordinate translation is needed when drawing to the backing pixmap of a
+ * redirected window, and the translation coordinates are provided by calling
+ * exaGetOffscreenPixmap() on the drawable.
+ */
+PixmapPtr
+glamor_get_drawable_pixmap(DrawablePtr drawable)
+{
+	if (drawable->type == DRAWABLE_WINDOW)
+		return drawable->
+		    pScreen->GetWindowPixmap((WindowPtr) drawable);
+	else
+		return (PixmapPtr) drawable;
+}
+
+_X_EXPORT void
+glamor_set_pixmap_type(PixmapPtr pixmap, glamor_pixmap_type_t type)
+{
+	glamor_pixmap_private *pixmap_priv;
+	glamor_screen_private *glamor_priv =
+	    glamor_get_screen_private(pixmap->drawable.pScreen);
+
+	pixmap_priv = dixLookupPrivate(&pixmap->devPrivates,
+					glamor_pixmap_private_key);
+	if (pixmap_priv == NULL) {
+		pixmap_priv = calloc(sizeof(*pixmap_priv), 1);
+		glamor_set_pixmap_private(pixmap, pixmap_priv);
+		pixmap_priv->base.pixmap = pixmap;
+		pixmap_priv->base.glamor_priv = glamor_priv;
+	}
+	pixmap_priv->type = type;
+}
+
+_X_EXPORT void
+glamor_set_pixmap_texture(PixmapPtr pixmap, unsigned int tex)
+{
+	ScreenPtr screen = pixmap->drawable.pScreen;
+	glamor_pixmap_private *pixmap_priv;
+	glamor_screen_private *glamor_priv;
+	glamor_pixmap_fbo *fbo;
+	GLenum format;
+
+	glamor_priv = glamor_get_screen_private(screen);
+	pixmap_priv = glamor_get_pixmap_private(pixmap);
+
+	if (pixmap_priv->base.fbo) {
+		fbo = glamor_pixmap_detach_fbo(pixmap_priv);
+		glamor_destroy_fbo(fbo);
+	}
+
+	gl_iformat_for_depth(pixmap->drawable.depth, &format);
+	fbo = glamor_create_fbo_from_tex(glamor_priv, pixmap->drawable.width,
+					 pixmap->drawable.height,
+					 format, tex, 0);
+
+	if (fbo == NULL) {
+		ErrorF("XXX fail to create fbo.\n");
+		return;
+	}
+
+	glamor_pixmap_attach_fbo(pixmap, fbo);
+}
+
+void
+glamor_set_screen_pixmap(PixmapPtr screen_pixmap, PixmapPtr *back_pixmap)
+{
+	glamor_pixmap_private *pixmap_priv;
+	glamor_screen_private *glamor_priv;
+
+	glamor_priv = glamor_get_screen_private(screen_pixmap->drawable.pScreen);
+	pixmap_priv = glamor_get_pixmap_private(screen_pixmap);
+	glamor_priv->screen_fbo = pixmap_priv->base.fbo->fb;
+
+	pixmap_priv->base.fbo->width = screen_pixmap->drawable.width;
+	pixmap_priv->base.fbo->height = screen_pixmap->drawable.height;
+
+	glamor_priv->back_pixmap = back_pixmap;
+}
+
+PixmapPtr
+glamor_create_pixmap(ScreenPtr screen, int w, int h, int depth,
+		     unsigned int usage)
+{
+	PixmapPtr pixmap;
+	glamor_pixmap_type_t type = GLAMOR_TEXTURE_ONLY;
+	glamor_pixmap_private *pixmap_priv;
+	glamor_screen_private *glamor_priv =
+	    glamor_get_screen_private(screen);
+	glamor_pixmap_fbo *fbo;
+	int pitch;
+	GLenum format;
+
+	if (w > 32767 || h > 32767)
+		return NullPixmap;
+
+	if ((usage == GLAMOR_CREATE_PIXMAP_CPU
+	     || (usage == CREATE_PIXMAP_USAGE_GLYPH_PICTURE && w <= 64 && h <= 64)
+		|| (w == 0 && h == 0)
+		|| !glamor_check_pixmap_fbo_depth(depth))
+	    || (!GLAMOR_TEXTURED_LARGE_PIXMAP &&
+		!glamor_check_fbo_size(glamor_priv, w, h)))
+		return fbCreatePixmap(screen, w, h, depth, usage);
+	else
+		pixmap = fbCreatePixmap(screen, 0, 0, depth, usage);
+
+	pixmap_priv = calloc(1, sizeof(*pixmap_priv));
+
+	if (!pixmap_priv) {
+		fbDestroyPixmap(pixmap);
+		return fbCreatePixmap(screen, w, h, depth, usage);
+	}
+	glamor_set_pixmap_private(pixmap, pixmap_priv);
+
+	if (usage == GLAMOR_CREATE_PIXMAP_MAP)
+		type = GLAMOR_MEMORY_MAP;
+
+	pixmap_priv->base.pixmap = pixmap;
+	pixmap_priv->base.glamor_priv = glamor_priv;
+
+	gl_iformat_for_depth(depth, &format);
+
+	pitch = (((w * pixmap->drawable.bitsPerPixel + 7) / 8) + 3) & ~3;
+	screen->ModifyPixmapHeader(pixmap, w, h, 0, 0, pitch, NULL);
+
+	if (type == GLAMOR_MEMORY_MAP || glamor_check_fbo_size(glamor_priv, w, h)) {
+		pixmap_priv->type = type;
+		fbo = glamor_create_fbo(glamor_priv, w, h, format, usage);
+	}
+	else {
+		DEBUGF("Create LARGE pixmap %p width %d height %d\n", pixmap, w, h);
+		pixmap_priv->type = GLAMOR_TEXTURE_LARGE;
+		fbo = glamor_create_fbo_array(glamor_priv, w, h, format, usage,
+					      glamor_priv->max_fbo_size,
+					      glamor_priv->max_fbo_size,
+					      pixmap_priv);
+	}
+
+	if (fbo == NULL) {
+		fbDestroyPixmap(pixmap);
+		free(pixmap_priv);
+		return fbCreatePixmap(screen, w, h, depth, usage);
+	}
+
+	glamor_pixmap_attach_fbo(pixmap, fbo);
+
+	return pixmap;
+}
+
+void
+glamor_destroy_textured_pixmap(PixmapPtr pixmap)
+{
+	if (pixmap->refcnt == 1) {
+		glamor_pixmap_private *pixmap_priv;
+
+		pixmap_priv = glamor_get_pixmap_private(pixmap);
+		if (pixmap_priv != NULL)
+			glamor_pixmap_destroy_fbo(pixmap_priv);
+	}
+}
+
+Bool
+glamor_destroy_pixmap(PixmapPtr pixmap)
+{
+	glamor_screen_private
+	  *glamor_priv = glamor_get_screen_private(pixmap->drawable.pScreen);
+	if (glamor_priv->dri3_enabled)
+		glamor_egl_destroy_textured_pixmap(pixmap);
+	else
+		glamor_destroy_textured_pixmap(pixmap);
+	return fbDestroyPixmap(pixmap);
+}
+
+void
+glamor_block_handler(ScreenPtr screen)
+{
+	glamor_screen_private *glamor_priv =
+	    glamor_get_screen_private(screen);
+	glamor_gl_dispatch *dispatch;
+
+	dispatch = glamor_get_dispatch(glamor_priv);
+	glamor_priv->tick++;
+	dispatch->glFlush();
+	glamor_fbo_expire(glamor_priv);
+	glamor_put_dispatch(glamor_priv);
+	if (glamor_priv->state == RENDER_STATE
+	    && glamor_priv->render_idle_cnt++ > RENDER_IDEL_MAX) {
+		glamor_priv->state = IDLE_STATE;
+		glamor_priv->render_idle_cnt = 0;
+	}
+}
+
+static void
+_glamor_block_handler(void *data, OSTimePtr timeout,
+		      void *last_select_mask)
+{
+	glamor_screen_private *glamor_priv = data;
+	glamor_gl_dispatch *dispatch = glamor_get_dispatch(glamor_priv);
+	dispatch->glFlush();
+	glamor_put_dispatch(glamor_priv);
+}
+
+static void
+_glamor_wakeup_handler(void *data, int result, void *last_select_mask)
+{
+}
+
+static void
+glamor_set_debug_level(int *debug_level)
+{
+	char *debug_level_string;
+	debug_level_string = getenv("GLAMOR_DEBUG");
+	if (debug_level_string
+	    && sscanf(debug_level_string, "%d", debug_level) == 1)
+		return;
+	*debug_level = 0;
+}
+
+int glamor_debug_level;
+
+/** Set up glamor for an already-configured GL context. */
+Bool
+glamor_init(ScreenPtr screen, unsigned int flags)
+{
+	glamor_screen_private *glamor_priv;
+	int gl_version;
+
+#ifdef RENDER
+	PictureScreenPtr ps = GetPictureScreenIfSet(screen);
+#endif
+	if (flags & ~GLAMOR_VALID_FLAGS) {
+		ErrorF("glamor_init: Invalid flags %x\n", flags);
+		return FALSE;
+	}
+	glamor_priv = calloc(1, sizeof(*glamor_priv));
+	if (glamor_priv == NULL)
+		return FALSE;
+
+	if (flags & GLAMOR_INVERTED_Y_AXIS) {
+		glamor_priv->yInverted = 1;
+	} else
+		glamor_priv->yInverted = 0;
+
+	if (!dixRegisterPrivateKey
+	    (glamor_screen_private_key, PRIVATE_SCREEN, 0)) {
+		LogMessage(X_WARNING,
+			   "glamor%d: Failed to allocate screen private\n",
+			   screen->myNum);
+		goto fail;
+	}
+
+	glamor_set_screen_private(screen, glamor_priv);
+
+	if (!dixRegisterPrivateKey
+	    (glamor_pixmap_private_key, PRIVATE_PIXMAP, 0)) {
+		LogMessage(X_WARNING,
+			   "glamor%d: Failed to allocate pixmap private\n",
+			   screen->myNum);
+		goto fail;;
+	}
+
+	gl_version = glamor_gl_get_version();
+
+#ifndef GLAMOR_GLES2
+	if (gl_version < GLAMOR_GL_VERSION_ENCODE(1, 3)) {
+		ErrorF("Require OpenGL version 1.3 or latter.\n");
+		goto fail;
+	}
+#else
+	if (gl_version < GLAMOR_GL_VERSION_ENCODE(2, 0)) {
+		ErrorF("Require Open GLES2.0 or latter.\n");
+		goto fail;
+	}
+#endif
+
+	glamor_gl_dispatch_init(screen, &glamor_priv->_dispatch, gl_version);
+
+#ifdef GLAMOR_GLES2
+	if (!glamor_gl_has_extension("GL_EXT_texture_format_BGRA8888")) {
+		ErrorF("GL_EXT_texture_format_BGRA8888 required\n");
+		goto fail;
+	}
+#endif
+
+	glamor_priv->has_pack_invert =
+	    glamor_gl_has_extension("GL_MESA_pack_invert");
+	glamor_priv->has_fbo_blit =
+	    glamor_gl_has_extension("GL_EXT_framebuffer_blit");
+	glamor_priv->_dispatch.glGetIntegerv(GL_MAX_RENDERBUFFER_SIZE,
+					     &glamor_priv->max_fbo_size);
+#ifdef MAX_FBO_SIZE
+	glamor_priv->max_fbo_size = MAX_FBO_SIZE;
+#endif
+
+	glamor_set_debug_level(&glamor_debug_level);
+
+#ifdef GLAMOR_GLES2
+	glamor_priv->gl_flavor = GLAMOR_GL_ES2;
+#else
+	glamor_priv->gl_flavor = GLAMOR_GL_DESKTOP;
+#endif
+	/* If we are using egl screen, call egl screen init to
+	 * register correct close screen function. */
+	if (flags & GLAMOR_USE_EGL_SCREEN)
+		glamor_egl_screen_init(screen);
+
+	glamor_priv->saved_procs.close_screen = screen->CloseScreen;
+	screen->CloseScreen = glamor_close_screen;
+
+	if (flags & GLAMOR_USE_SCREEN) {
+		if (!RegisterBlockAndWakeupHandlers(_glamor_block_handler,
+						    _glamor_wakeup_handler,
+						    glamor_priv)) {
+			goto fail;
+		}
+
+		glamor_priv->saved_procs.create_gc = screen->CreateGC;
+		screen->CreateGC = glamor_create_gc;
+
+		glamor_priv->saved_procs.create_pixmap = screen->CreatePixmap;
+		screen->CreatePixmap = glamor_create_pixmap;
+
+		glamor_priv->saved_procs.destroy_pixmap = screen->DestroyPixmap;
+		screen->DestroyPixmap = glamor_destroy_pixmap;
+
+		glamor_priv->saved_procs.get_spans = screen->GetSpans;
+		screen->GetSpans = glamor_get_spans;
+
+		glamor_priv->saved_procs.get_image = screen->GetImage;
+		screen->GetImage = glamor_get_image;
+
+		glamor_priv->saved_procs.change_window_attributes =
+		    screen->ChangeWindowAttributes;
+		screen->ChangeWindowAttributes =
+		    glamor_change_window_attributes;
+
+		glamor_priv->saved_procs.copy_window = screen->CopyWindow;
+		screen->CopyWindow = glamor_copy_window;
+
+		glamor_priv->saved_procs.bitmap_to_region =
+		    screen->BitmapToRegion;
+		screen->BitmapToRegion = glamor_bitmap_to_region;
+	}
+#ifdef RENDER
+	if (flags & GLAMOR_USE_PICTURE_SCREEN) {
+		glamor_priv->saved_procs.composite = ps->Composite;
+		ps->Composite = glamor_composite;
+
+
+		glamor_priv->saved_procs.trapezoids = ps->Trapezoids;
+		ps->Trapezoids = glamor_trapezoids;
+
+
+		glamor_priv->saved_procs.triangles = ps->Triangles;
+		ps->Triangles = glamor_triangles;
+
+		glamor_priv->saved_procs.addtraps = ps->AddTraps;
+		ps->AddTraps = glamor_add_traps;
+
+	}
+
+	glamor_priv->saved_procs.composite_rects = ps->CompositeRects;
+	ps->CompositeRects = glamor_composite_rectangles;
+
+	glamor_priv->saved_procs.glyphs = ps->Glyphs;
+	ps->Glyphs = glamor_glyphs;
+
+	glamor_priv->saved_procs.unrealize_glyph = ps->UnrealizeGlyph;
+	ps->UnrealizeGlyph = glamor_glyph_unrealize;
+
+	glamor_priv->saved_procs.create_picture = ps->CreatePicture;
+	ps->CreatePicture = glamor_create_picture;
+
+	glamor_priv->saved_procs.set_window_pixmap = screen->SetWindowPixmap;
+	screen->SetWindowPixmap = glamor_set_window_pixmap;
+
+	glamor_priv->saved_procs.destroy_picture = ps->DestroyPicture;
+	ps->DestroyPicture = glamor_destroy_picture;
+	glamor_init_composite_shaders(screen);
+#endif
+	glamor_init_pixmap_fbo(screen);
+	glamor_init_solid_shader(screen);
+	glamor_init_tile_shader(screen);
+#ifdef GLAMOR_TRAPEZOID_SHADER
+	glamor_init_trapezoid_shader(screen);
+#endif
+	glamor_init_putimage_shaders(screen);
+	glamor_init_finish_access_shaders(screen);
+#ifdef GLAMOR_GRADIENT_SHADER
+	glamor_init_gradient_shader(screen);
+#endif
+#ifdef GLAMOR_XV
+	glamor_init_xv_shader(screen);
+#endif
+	glamor_pixmap_init(screen);
+
+	glamor_priv->flags = flags;
+	glamor_priv->screen = screen;
+
+	return TRUE;
+
+      fail:
+	free(glamor_priv);
+	glamor_set_screen_private(screen, NULL);
+	return FALSE;
+}
+
+static void
+glamor_release_screen_priv(ScreenPtr screen)
+{
+	glamor_screen_private *glamor_priv;
+
+	glamor_priv = glamor_get_screen_private(screen);
+#ifdef GLAMOR_XV
+	glamor_fini_xv_shader(screen);
+#endif
+#ifdef RENDER
+	glamor_fini_composite_shaders(screen);
+#endif
+	glamor_fini_pixmap_fbo(screen);
+	glamor_fini_solid_shader(screen);
+	glamor_fini_tile_shader(screen);
+#ifdef GLAMOR_TRAPEZOID_SHADER
+	glamor_fini_trapezoid_shader(screen);
+#endif
+	glamor_fini_putimage_shaders(screen);
+	glamor_fini_finish_access_shaders(screen);
+#ifdef GLAMOR_GRADIENT_SHADER
+	glamor_fini_gradient_shader(screen);
+#endif
+	glamor_pixmap_fini(screen);
+	free(glamor_priv);
+
+	glamor_set_screen_private(screen, NULL);
+}
+
+_X_EXPORT void
+glamor_set_pixmap_private(PixmapPtr pixmap, glamor_pixmap_private *priv)
+{
+	glamor_pixmap_private *old_priv;
+	glamor_pixmap_fbo *fbo;
+
+	old_priv = dixGetPrivate(&pixmap->devPrivates, glamor_pixmap_private_key);
+
+	if (priv) {
+		assert(old_priv == NULL);
+	} else {
+		if (old_priv == NULL)
+			return;
+		fbo = glamor_pixmap_detach_fbo(old_priv);
+		glamor_purge_fbo(fbo);
+		free(old_priv);
+	}
+
+	dixSetPrivate(&pixmap->devPrivates,
+		      glamor_pixmap_private_key,
+		      priv);
+}
+
+Bool
+glamor_close_screen(CLOSE_SCREEN_ARGS_DECL)
+{
+	glamor_screen_private *glamor_priv;
+	PixmapPtr screen_pixmap;
+	int flags;
+#ifdef RENDER
+	PictureScreenPtr ps = GetPictureScreenIfSet(screen);
+#endif
+	glamor_priv = glamor_get_screen_private(screen);
+	flags = glamor_priv->flags;
+	glamor_glyphs_fini(screen);
+	screen->CloseScreen = glamor_priv->saved_procs.close_screen;
+	if (flags & GLAMOR_USE_SCREEN) {
+
+		screen->CreateGC = glamor_priv->saved_procs.create_gc;
+		screen->CreatePixmap = glamor_priv->saved_procs.create_pixmap;
+		screen->DestroyPixmap = glamor_priv->saved_procs.destroy_pixmap;
+		screen->GetSpans = glamor_priv->saved_procs.get_spans;
+		screen->ChangeWindowAttributes =
+		    glamor_priv->saved_procs.change_window_attributes;
+		screen->CopyWindow = glamor_priv->saved_procs.copy_window;
+		screen->BitmapToRegion = glamor_priv->saved_procs.bitmap_to_region;
+	}
+#ifdef RENDER
+	if (ps && (flags & GLAMOR_USE_PICTURE_SCREEN)) {
+
+		ps->Composite = glamor_priv->saved_procs.composite;
+		ps->Trapezoids = glamor_priv->saved_procs.trapezoids;
+		ps->Triangles = glamor_priv->saved_procs.triangles;
+		ps->CreatePicture = glamor_priv->saved_procs.create_picture;
+	}
+	ps->CompositeRects = glamor_priv->saved_procs.composite_rects;
+	ps->Glyphs = glamor_priv->saved_procs.glyphs;
+	ps->UnrealizeGlyph = glamor_priv->saved_procs.unrealize_glyph;
+	screen->SetWindowPixmap = glamor_priv->saved_procs.set_window_pixmap;
+#endif
+	screen_pixmap = screen->GetScreenPixmap(screen);
+	glamor_set_pixmap_private(screen_pixmap, NULL);
+	if (glamor_priv->back_pixmap && *glamor_priv->back_pixmap)
+		glamor_set_pixmap_private(*glamor_priv->back_pixmap, NULL);
+
+	glamor_release_screen_priv(screen);
+
+	return screen->CloseScreen(CLOSE_SCREEN_ARGS);
+}
+
+
+void
+glamor_fini(ScreenPtr screen)
+{
+	/* Do nothing currently. */
+}
+
+void glamor_enable_dri3(ScreenPtr screen)
+{
+	glamor_screen_private *glamor_priv =
+	    glamor_get_screen_private(screen);
+	glamor_priv->dri3_enabled = TRUE;
+}
+
+Bool glamor_is_dri3_support_enabled(ScreenPtr screen)
+{
+	glamor_screen_private *glamor_priv =
+	    glamor_get_screen_private(screen);
+	return glamor_priv->dri3_enabled;
+}
+
+int
+glamor_dri3_fd_from_pixmap (ScreenPtr screen,
+                            PixmapPtr pixmap,
+                            CARD16 *stride,
+                            CARD32 *size)
+{
+	glamor_pixmap_private *pixmap_priv;
+	glamor_screen_private *glamor_priv =
+	    glamor_get_screen_private(pixmap->drawable.pScreen);
+
+	pixmap_priv = glamor_get_pixmap_private(pixmap);
+	if (pixmap_priv == NULL || !glamor_priv->dri3_enabled)
+		return -1;
+	switch (pixmap_priv->type)
+	{
+		case GLAMOR_TEXTURE_DRM:
+		case GLAMOR_TEXTURE_ONLY:
+			glamor_pixmap_ensure_fbo(pixmap, GL_RGBA, 0);
+			return glamor_egl_dri3_fd_name_from_tex(screen,
+								pixmap,
+								pixmap_priv->base.fbo->tex,
+								FALSE,
+								stride,
+								size);
+		default: break;
+	}
+	return -1;
+}
+
+int
+glamor_dri3_name_from_pixmap (PixmapPtr pixmap)
+{
+	glamor_pixmap_private *pixmap_priv;
+	glamor_screen_private *glamor_priv =
+	    glamor_get_screen_private(pixmap->drawable.pScreen);
+
+	pixmap_priv = glamor_get_pixmap_private(pixmap);
+	if (pixmap_priv == NULL || !glamor_priv->dri3_enabled)
+		return -1;
+	switch (pixmap_priv->type)
+	{
+		case GLAMOR_TEXTURE_DRM:
+		case GLAMOR_TEXTURE_ONLY:
+			glamor_pixmap_ensure_fbo(pixmap, GL_RGBA, 0);
+			return glamor_egl_dri3_fd_name_from_tex(pixmap->drawable.pScreen,
+								pixmap,
+								pixmap_priv->base.fbo->tex,
+								TRUE,
+								NULL,
+								NULL);
+		default: break;
+	}
+	return -1;
+}
diff --git a/glamor/glamor.h b/glamor/glamor.h
new file mode 100644
index 000000000..1bb48ed74
--- /dev/null
+++ b/glamor/glamor.h
@@ -0,0 +1,432 @@
+/*
+ * Copyright © 2008 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ *
+ * Authors:
+ *    Eric Anholt <eric@anholt.net>
+ *    Zhigang Gong <zhigang.gong@linux.intel.com>
+ *
+ */
+
+#ifndef GLAMOR_H
+#define GLAMOR_H
+
+#include <scrnintstr.h>
+#include <xf86.h>
+#include <xf86str.h>
+#include <pixmapstr.h>
+#include <gcstruct.h>
+#include <picturestr.h>
+#include <fb.h>
+#include <fbpict.h>
+#include <xf86xv.h>
+/*
+ * glamor_pixmap_type : glamor pixmap's type.
+ * @MEMORY: pixmap is in memory.
+ * @TEXTURE_DRM: pixmap is in a texture created from a DRM buffer.
+ * @SEPARATE_TEXTURE: The texture is created from a DRM buffer, but
+ * 		      the format is incompatible, so this type of pixmap
+ * 		      will never fallback to DDX layer.
+ * @DRM_ONLY: pixmap is in a external DRM buffer.
+ * @TEXTURE_ONLY: pixmap is in an internal texture.
+ */
+typedef enum  glamor_pixmap_type {
+	GLAMOR_MEMORY,
+	GLAMOR_MEMORY_MAP,
+	GLAMOR_TEXTURE_DRM,
+	GLAMOR_SEPARATE_TEXTURE,
+	GLAMOR_DRM_ONLY,
+	GLAMOR_TEXTURE_ONLY,
+	GLAMOR_TEXTURE_LARGE,
+	GLAMOR_TEXTURE_PACK
+} glamor_pixmap_type_t;
+
+#define GLAMOR_EGL_EXTERNAL_BUFFER 3
+#define GLAMOR_INVERTED_Y_AXIS  	1
+#define GLAMOR_USE_SCREEN		(1 << 1)
+#define GLAMOR_USE_PICTURE_SCREEN 	(1 << 2)
+#define GLAMOR_USE_EGL_SCREEN		(1 << 3)
+#define GLAMOR_VALID_FLAGS      (GLAMOR_INVERTED_Y_AXIS  		\
+				 | GLAMOR_USE_SCREEN 			\
+                                 | GLAMOR_USE_PICTURE_SCREEN		\
+				 | GLAMOR_USE_EGL_SCREEN)
+
+/* @glamor_init: Initialize glamor internal data structure.
+ *
+ * @screen: Current screen pointer.
+ * @flags:  Please refer the flags description above.
+ *
+ * 	@GLAMOR_INVERTED_Y_AXIS:
+ * 	set 1 means the GL env's origin (0,0) is at top-left.
+ * 	EGL/DRM platform is an example need to set this bit.
+ * 	glx platform's origin is at bottom-left thus need to
+ * 	clear this bit.
+ *
+ * 	@GLAMOR_USE_SCREEN:
+ *	If running in an pre-existing X environment, and the
+ * 	gl context is GLX, then you should set this bit and
+ * 	let the glamor to handle all the screen related
+ * 	functions such as GC ops and CreatePixmap/DestroyPixmap.
+ *
+ * 	@GLAMOR_USE_PICTURE_SCREEN:
+ * 	If don't use any other underlying DDX driver to handle
+ * 	the picture related rendering functions, please set this
+ * 	bit on. Otherwise, clear this bit. And then it is the DDX
+ * 	driver's responsibility to determine how/when to jump to
+ * 	glamor's picture compositing path.
+ *
+ * 	@GLAMOR_USE_EGL_SCREEN:
+ * 	If you are using EGL layer, then please set this bit
+ * 	on, otherwise, clear it.
+ *
+ * This function initializes necessary internal data structure
+ * for glamor. And before calling into this function, the OpenGL
+ * environment should be ready. Should be called before any real
+ * glamor rendering or texture allocation functions. And should
+ * be called after the DDX's screen initialization or at the last
+ * step of the DDX's screen initialization.
+ */
+extern _X_EXPORT Bool glamor_init(ScreenPtr screen, unsigned int flags);
+extern _X_EXPORT void glamor_fini(ScreenPtr screen);
+
+/* This function is used to free the glamor private screen's
+ * resources. If the DDX driver is not set GLAMOR_USE_SCREEN,
+ * then, DDX need to call this function at proper stage, if
+ * it is the xorg DDX driver,then it should be called at free
+ * screen stage not the close screen stage. The reason is after
+ * call to this function, the xorg DDX may need to destroy the
+ * screen pixmap which must be a glamor pixmap and requires
+ * the internal data structure still exist at that time.
+ * Otherwise, the glamor internal structure will not be freed.*/
+#ifndef XF86_SCRN_INTERFACE
+extern _X_EXPORT Bool glamor_close_screen(int scrnIndex, ScreenPtr screen);
+#else
+extern _X_EXPORT Bool glamor_close_screen(ScreenPtr screen);
+#endif
+
+
+/* Let glamor to know the screen's fbo. The low level
+ * driver should already assign a tex
+ * to this pixmap through the set_pixmap_texture. */
+extern _X_EXPORT void glamor_set_screen_pixmap(PixmapPtr screen_pixmap, PixmapPtr *back_pixmap);
+
+/* @glamor_glyphs_init: Initialize glyphs internal data structures.
+ *
+ * @pScreen: Current screen pointer.
+ *
+ * This function must be called after the glamor_init and the texture
+ * can be allocated. An example is to call it when create the screen
+ * resources at DDX layer.
+ */
+extern _X_EXPORT Bool glamor_glyphs_init(ScreenPtr pScreen);
+
+extern _X_EXPORT void glamor_set_pixmap_texture(PixmapPtr pixmap,
+						unsigned int tex);
+
+extern _X_EXPORT void glamor_set_pixmap_type(PixmapPtr pixmap, glamor_pixmap_type_t type);
+extern _X_EXPORT void glamor_destroy_textured_pixmap(PixmapPtr pixmap);
+extern _X_EXPORT void glamor_block_handler(ScreenPtr screen);
+extern _X_EXPORT PixmapPtr glamor_create_pixmap(ScreenPtr screen, int w, int h, int depth,
+						unsigned int usage);
+
+extern _X_EXPORT void glamor_egl_screen_init(ScreenPtr screen);
+
+extern _X_EXPORT void glamor_egl_make_current(ScreenPtr screen);
+extern _X_EXPORT void glamor_egl_restore_context(ScreenPtr screen);
+
+/* @glamor_egl_exchange_buffers: Exchange the underlying buffers(KHR image,fbo).
+ *
+ * @front: front pixmap.
+ * @back: back pixmap.
+ *
+ * Used by the DRI2 page flip. This function will exchange the KHR images and
+ * fbos of the two pixmaps.
+ * */
+extern _X_EXPORT void glamor_egl_exchange_buffers(PixmapPtr front, PixmapPtr back);
+
+extern _X_EXPORT void glamor_pixmap_exchange_fbos(PixmapPtr front, PixmapPtr back);
+
+/* The DDX is not supposed to call these three functions */
+extern _X_EXPORT void glamor_enable_dri3(ScreenPtr screen);
+extern _X_EXPORT unsigned int glamor_egl_create_argb8888_based_texture(ScreenPtr screen, int w, int h);
+extern _X_EXPORT int glamor_egl_dri3_fd_name_from_tex(ScreenPtr, PixmapPtr, unsigned int, Bool, CARD16*, CARD32*);
+
+/* @glamor_is_dri3_support_enabled: Returns if DRI3 support is enabled.
+ *
+ * @screen: Current screen pointer.
+ *
+ * To have DRI3 support enabled, glamor and glamor_egl need to be initialized,
+ * and glamor_egl_init_textured_pixmap need to be called. glamor also
+ * has to be compiled with gbm support.
+ * The EGL layer need to have the following extensions working:
+ * .EGL_KHR_gl_texture_2D_image
+ * .EGL_EXT_image_dma_buf_import
+ * If DRI3 support is not enabled, the following helpers will return an error.
+ * */
+extern _X_EXPORT Bool glamor_is_dri3_support_enabled(ScreenPtr screen);
+
+/* @glamor_dri3_fd_from_pixmap: DRI3 helper to get a dma-buf fd from a pixmap.
+ *
+ * @screen: Current screen pointer.
+ * @pixmap: The pixmap from which we want the fd.
+ * @stride, @size: Pointers to fill the stride and size of the
+ * 		   buffer associated to the fd.
+ *
+ * the pixmap and the buffer associated by the fd will share the same
+ * content.
+ * Returns the fd on success, -1 on error.
+ * */
+extern _X_EXPORT int glamor_dri3_fd_from_pixmap (ScreenPtr screen,
+						 PixmapPtr pixmap,
+						 CARD16 *stride,
+						 CARD32 *size);
+
+/* @glamor_dri3_name_from_pixmap: helper to get an gem name from a pixmap.
+ *
+ * @pixmap: The pixmap from which we want the gem name.
+ *
+ * the pixmap and the buffer associated by the gem name will share the same
+ * content. This function can be used by the DDX to support DRI2, but needs
+ * glamor DRI3 support to be activated.
+ * Returns the name on success, -1 on error.
+ * */
+extern _X_EXPORT int glamor_dri3_name_from_pixmap (PixmapPtr pixmap);
+
+/* @glamor_egl_dri3_pixmap_from_fd: DRI3 helper to get a pixmap from a dma-buf fd.
+ *
+ * @screen: Current screen pointer.
+ * @fd: The dma-buf fd to import.
+ * @width: The width of the buffer.
+ * @height: The height of the buffer.
+ * @stride: The stride of the buffer.
+ * @depth: The depth of the buffer.
+ * @bpp: The number of bpp of the buffer.
+ *
+ * Returns a valid pixmap if the import succeeded, else NULL.
+ * */
+extern _X_EXPORT PixmapPtr glamor_egl_dri3_pixmap_from_fd (ScreenPtr screen,
+							   int fd,
+							   CARD16 width,
+							   CARD16 height,
+							   CARD16 stride,
+							   CARD8 depth,
+							   CARD8 bpp);
+
+#ifdef GLAMOR_FOR_XORG
+
+#define GLAMOR_EGL_MODULE_NAME  "glamoregl"
+
+/* @glamor_egl_init: Initialize EGL environment.
+ *
+ * @scrn: Current screen info pointer.
+ * @fd:   Current drm fd.
+ *
+ * This function creates and intialize EGL contexts.
+ * Should be called from DDX's preInit function.
+ * Return TRUE if success, otherwise return FALSE.
+ * */
+extern _X_EXPORT Bool glamor_egl_init(ScrnInfoPtr scrn, int fd);
+
+/* @glamor_egl_init_textured_pixmap: Initialization for textured pixmap allocation.
+ *
+ * @screen: Current screen pointer.
+ *
+ * This function must be called before any textured pixmap's creation including
+ * the screen pixmap. Could be called from DDX's screenInit function after the calling
+ * to glamor_init..
+ */
+extern _X_EXPORT Bool glamor_egl_init_textured_pixmap(ScreenPtr screen);
+
+/* @glamor_egl_create_textured_screen: Create textured screen pixmap.
+ *
+ * @screen: screen pointer to be processed.
+ * @handle: screen pixmap's BO handle.
+ * @stride: screen pixmap's stride in bytes.
+ *
+ * This function is similar with the create_textured_pixmap. As the
+ * screen pixmap is a special, we handle it separately in this function.
+ */
+extern _X_EXPORT Bool glamor_egl_create_textured_screen(ScreenPtr screen,
+							int handle,
+							int stride);
+
+/* @glamor_egl_create_textured_screen_ext:
+ *
+ * extent one parameter to track the pointer of the DDX layer's back pixmap.
+ * We need this pointer during the closing screen stage. As before back to
+ * the DDX's close screen, we have to free all the glamor related resources.
+ */
+extern _X_EXPORT Bool glamor_egl_create_textured_screen_ext(ScreenPtr screen,
+							    int handle,
+							    int stride,
+							    PixmapPtr *back_pixmap);
+
+/*
+ * @glamor_egl_create_textured_pixmap: Try to create a textured pixmap from
+ * 				       a BO handle.
+ *
+ * @pixmap: The pixmap need to be processed.
+ * @handle: The BO's handle attached to this pixmap at DDX layer.
+ * @stride: Stride in bytes for this pixmap.
+ *
+ * This function try to create a texture from the handle and attach
+ * the texture to the pixmap , thus glamor can render to this pixmap
+ * as well. Return true if successful, otherwise return FALSE.
+ */
+extern _X_EXPORT Bool glamor_egl_create_textured_pixmap(PixmapPtr pixmap,
+							int handle,
+							int stride);
+
+/*
+ * @glamor_egl_create_textured_pixmap_from_bo: Try to create a textured pixmap
+ * 					       from a gbm_bo.
+ *
+ * @pixmap: The pixmap need to be processed.
+ * @bo: a pointer on a gbm_bo structure attached to this pixmap at DDX layer.
+ *
+ * This function is similar to glamor_egl_create_textured_pixmap.
+ */
+extern _X_EXPORT Bool
+	glamor_egl_create_textured_pixmap_from_gbm_bo(PixmapPtr pixmap,
+						      void *bo);
+
+#endif
+
+extern _X_EXPORT void glamor_egl_destroy_textured_pixmap(PixmapPtr pixmap);
+
+extern _X_EXPORT int glamor_create_gc(GCPtr gc);
+
+extern _X_EXPORT void glamor_validate_gc(GCPtr gc, unsigned long changes, DrawablePtr drawable);
+/* Glamor rendering/drawing functions with XXX_nf.
+ * nf means no fallback within glamor internal if possible. If glamor
+ * fail to accelerate the operation, glamor will return a false, and the
+ * caller need to implement fallback method. Return a true means the
+ * rendering request get done successfully. */
+extern _X_EXPORT Bool glamor_fill_spans_nf(DrawablePtr drawable,
+					   GCPtr gc,
+					   int n, DDXPointPtr points,
+					   int *widths, int sorted);
+
+extern _X_EXPORT Bool glamor_poly_fill_rect_nf(DrawablePtr drawable,
+					       GCPtr gc,
+					       int nrect,
+					       xRectangle * prect);
+
+extern _X_EXPORT Bool glamor_put_image_nf(DrawablePtr drawable,
+					  GCPtr gc, int depth, int x, int y,
+					  int w, int h, int left_pad,
+					  int image_format, char *bits);
+
+extern _X_EXPORT Bool glamor_copy_n_to_n_nf(DrawablePtr src,
+					    DrawablePtr dst,
+					    GCPtr gc,
+					    BoxPtr box,
+					    int nbox,
+					    int dx,
+					    int dy,
+					    Bool reverse,
+					    Bool upsidedown, Pixel bitplane,
+					    void *closure);
+
+extern _X_EXPORT Bool glamor_composite_nf(CARD8 op,
+					  PicturePtr source,
+					  PicturePtr mask,
+					  PicturePtr dest,
+					  INT16 x_source,
+					  INT16 y_source,
+					  INT16 x_mask,
+					  INT16 y_mask,
+					  INT16 x_dest, INT16 y_dest,
+					  CARD16 width, CARD16 height);
+
+extern _X_EXPORT Bool glamor_trapezoids_nf(CARD8 op,
+					   PicturePtr src, PicturePtr dst,
+					   PictFormatPtr mask_format,
+					   INT16 x_src, INT16 y_src,
+					   int ntrap, xTrapezoid * traps);
+
+extern _X_EXPORT Bool glamor_glyphs_nf(CARD8 op,
+				       PicturePtr src,
+				       PicturePtr dst,
+				       PictFormatPtr mask_format,
+				       INT16 x_src,
+				       INT16 y_src, int nlist,
+				       GlyphListPtr list, GlyphPtr * glyphs);
+
+extern _X_EXPORT Bool glamor_triangles_nf(CARD8 op,
+					  PicturePtr pSrc,
+					  PicturePtr pDst,
+					  PictFormatPtr maskFormat,
+					  INT16 xSrc, INT16 ySrc,
+					  int ntris, xTriangle * tris);
+
+
+extern _X_EXPORT void glamor_glyph_unrealize(ScreenPtr screen, GlyphPtr glyph);
+
+extern _X_EXPORT Bool glamor_set_spans_nf(DrawablePtr drawable, GCPtr gc, char *src,
+					  DDXPointPtr points, int *widths, int n, int sorted);
+
+extern _X_EXPORT Bool glamor_get_spans_nf(DrawablePtr drawable, int wmax,
+					  DDXPointPtr points, int *widths, int count, char *dst);
+
+extern _X_EXPORT Bool glamor_composite_rects_nf (CARD8         op,
+						 PicturePtr    pDst,
+						 xRenderColor  *color,
+						 int           nRect,
+						 xRectangle    *rects);
+
+extern _X_EXPORT Bool glamor_get_image_nf(DrawablePtr pDrawable, int x, int y, int w, int h,
+					  unsigned int format, unsigned long planeMask, char *d);
+
+extern _X_EXPORT Bool glamor_add_traps_nf(PicturePtr pPicture,
+					  INT16 x_off,
+					  INT16 y_off, int ntrap, xTrap * traps);
+
+extern _X_EXPORT Bool glamor_copy_plane_nf(DrawablePtr pSrc, DrawablePtr pDst, GCPtr pGC,
+					   int srcx, int srcy, int w, int h, int dstx, int dsty,
+					   unsigned long bitPlane, RegionPtr *pRegion);
+
+extern _X_EXPORT Bool glamor_image_glyph_blt_nf(DrawablePtr pDrawable, GCPtr pGC,
+						int x, int y, unsigned int nglyph,
+						CharInfoPtr * ppci, pointer pglyphBase);
+
+extern _X_EXPORT Bool glamor_poly_glyph_blt_nf(DrawablePtr pDrawable, GCPtr pGC,
+					       int x, int y, unsigned int nglyph,
+					       CharInfoPtr * ppci, pointer pglyphBase);
+
+extern _X_EXPORT Bool glamor_push_pixels_nf(GCPtr pGC, PixmapPtr pBitmap,
+					    DrawablePtr pDrawable, int w, int h, int x, int y);
+
+extern _X_EXPORT Bool glamor_poly_point_nf(DrawablePtr pDrawable, GCPtr pGC, int mode, int npt,
+					   DDXPointPtr ppt);
+
+extern _X_EXPORT Bool glamor_poly_segment_nf(DrawablePtr pDrawable, GCPtr pGC, int nseg,
+					     xSegment *pSeg);
+
+extern _X_EXPORT Bool glamor_poly_line_nf(DrawablePtr pDrawable, GCPtr pGC, int mode, int npt,
+					  DDXPointPtr ppt);
+
+extern _X_EXPORT Bool glamor_poly_lines_nf(DrawablePtr drawable, GCPtr gc, int mode, int n,
+					   DDXPointPtr points);
+
+extern _X_EXPORT XF86VideoAdaptorPtr glamor_xv_init(ScreenPtr pScreen, int num_texture_ports);
+
+#endif /* GLAMOR_H */
diff --git a/glamor/glamor_addtraps.c b/glamor/glamor_addtraps.c
new file mode 100644
index 000000000..ac852963c
--- /dev/null
+++ b/glamor/glamor_addtraps.c
@@ -0,0 +1,65 @@
+/*
+ * Copyright © 2009 Intel Corporation
+ * Copyright © 1998 Keith Packard
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ *
+ * Authors:
+ *    Zhigang Gong <zhigang.gong@gmail.com>
+ *
+ */
+
+#include "glamor_priv.h"
+
+static Bool
+_glamor_add_traps(PicturePtr pPicture,
+		  INT16 x_off, 
+		  INT16 y_off, int ntrap, xTrap * traps,
+		  Bool fallback)
+{
+	if (!fallback
+	    && ( !pPicture->pDrawable 
+		 || glamor_ddx_fallback_check_pixmap(pPicture->pDrawable)))
+		return FALSE;
+
+	if (glamor_prepare_access_picture(pPicture, GLAMOR_ACCESS_RW)) {
+		fbAddTraps(pPicture, x_off, y_off, ntrap, traps);
+		glamor_finish_access_picture(pPicture, GLAMOR_ACCESS_RW);
+	}
+
+	return TRUE;
+}
+
+void
+glamor_add_traps(PicturePtr pPicture,
+		 INT16 x_off, 
+		 INT16 y_off, int ntrap, xTrap * traps)
+{
+	_glamor_add_traps(pPicture, x_off, y_off, ntrap, traps, TRUE);
+}
+
+Bool
+glamor_add_traps_nf(PicturePtr pPicture,
+		    INT16 x_off, 
+		    INT16 y_off, int ntrap, xTrap * traps)
+{
+	return _glamor_add_traps(pPicture, x_off, y_off, ntrap, traps, FALSE);
+}
+
diff --git a/glamor/glamor_compositerects.c b/glamor/glamor_compositerects.c
new file mode 100644
index 000000000..1a5769958
--- /dev/null
+++ b/glamor/glamor_compositerects.c
@@ -0,0 +1,278 @@
+/*
+ * Copyright © 2009 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ *
+ * Authors:
+ * 	Zhigang Gong <zhigang.gong@linux.intel.com>
+ *
+ * 	original author is Chris Wilson at sna.
+ *
+ */
+
+#include "glamor_priv.h"
+#include "mipict.h"
+#include "damage.h"
+
+/** @file glamor_compositerects.
+ *
+ * compositeRects acceleration implementation
+ */
+
+static int16_t bound(int16_t a, uint16_t b)
+{
+	int v = (int)a + (int)b;
+	if (v > MAXSHORT)
+		return MAXSHORT;
+	return v;
+}
+
+static Bool
+_pixman_region_init_clipped_rectangles(pixman_region16_t *region,
+				       unsigned int num_rects,
+				       xRectangle *rects,
+				       int tx, int ty,
+				       BoxPtr extents)
+{
+	pixman_box16_t stack_boxes[64], *boxes = stack_boxes;
+	pixman_bool_t ret;
+	unsigned int i, j;
+
+	if (num_rects > ARRAY_SIZE(stack_boxes)) {
+		boxes = malloc(sizeof(pixman_box16_t) * num_rects);
+		if (boxes == NULL)
+			return FALSE;
+	}
+
+	for (i = j = 0; i < num_rects; i++) {
+		boxes[j].x1 = rects[i].x + tx;
+		if (boxes[j].x1 < extents->x1)
+			boxes[j].x1 = extents->x1;
+
+		boxes[j].y1 = rects[i].y + ty;
+		if (boxes[j].y1 < extents->y1)
+			boxes[j].y1 = extents->y1;
+
+		boxes[j].x2 = bound(rects[i].x + tx, rects[i].width);
+		if (boxes[j].x2 > extents->x2)
+			boxes[j].x2 = extents->x2;
+
+		boxes[j].y2 = bound(rects[i].y + ty, rects[i].height);
+		if (boxes[j].y2 > extents->y2)
+			boxes[j].y2 = extents->y2;
+
+		if (boxes[j].x2 > boxes[j].x1 && boxes[j].y2 > boxes[j].y1)
+			j++;
+	}
+
+	ret = FALSE;
+	if (j)
+	    ret = pixman_region_init_rects(region, boxes, j);
+
+	if (boxes != stack_boxes)
+		free(boxes);
+
+	DEBUGF("%s: nrects=%d, region=(%d, %d), (%d, %d) x %d\n",
+	     __FUNCTION__, num_rects,
+	     region->extents.x1, region->extents.y1,
+	     region->extents.x2, region->extents.y2,
+	     j);
+	return ret;
+}
+
+
+void
+glamor_composite_rectangles(CARD8	 op,
+			 PicturePtr	 dst,
+			 xRenderColor	*color,
+			 int		 num_rects,
+			 xRectangle	*rects)
+{
+	PixmapPtr pixmap;
+	struct glamor_pixmap_private *priv;
+	pixman_region16_t region;
+	pixman_box16_t *boxes;
+	int dst_x, dst_y;
+	int num_boxes;
+	PicturePtr source = NULL;
+	Bool need_free_region = FALSE;
+
+	DEBUGF("%s(op=%d, %08x x %d [(%d, %d)x(%d, %d) ...])\n",
+	     __FUNCTION__, op,
+	     (color->alpha >> 8 << 24) |
+	     (color->red   >> 8 << 16) |
+	     (color->green >> 8 << 8) |
+	     (color->blue  >> 8 << 0),
+	     num_rects,
+	     rects[0].x, rects[0].y, rects[0].width, rects[0].height);
+
+	if (!num_rects)
+		return;
+
+	if (region_is_empty(dst->pCompositeClip)) {
+		DEBUGF("%s: empty clip, skipping\n", __FUNCTION__);
+		return;
+	}
+
+	if ((color->red|color->green|color->blue|color->alpha) <= 0x00ff) {
+		switch (op) {
+		case PictOpOver:
+		case PictOpOutReverse:
+		case PictOpAdd:
+			return;
+		case  PictOpInReverse:
+		case  PictOpSrc:
+			op = PictOpClear;
+			break;
+		case  PictOpAtopReverse:
+			op = PictOpOut;
+			break;
+		case  PictOpXor:
+			op = PictOpOverReverse;
+			break;
+		}
+	}
+	if (color->alpha <= 0x00ff) {
+		switch (op) {
+		case PictOpOver:
+		case PictOpOutReverse:
+			return;
+		case  PictOpInReverse:
+			op = PictOpClear;
+			break;
+		case  PictOpAtopReverse:
+			op = PictOpOut;
+			break;
+		case  PictOpXor:
+			op = PictOpOverReverse;
+			break;
+		}
+	} else if (color->alpha >= 0xff00) {
+		switch (op) {
+		case PictOpOver:
+			op = PictOpSrc;
+			break;
+		case PictOpInReverse:
+			return;
+		case PictOpOutReverse:
+			op = PictOpClear;
+			break;
+		case  PictOpAtopReverse:
+			op = PictOpOverReverse;
+			break;
+		case  PictOpXor:
+			op = PictOpOut;
+			break;
+		}
+	}
+	DEBUGF("%s: converted to op %d\n", __FUNCTION__, op);
+
+	if (!_pixman_region_init_clipped_rectangles(&region,
+						    num_rects, rects,
+						    dst->pDrawable->x,
+						    dst->pDrawable->y,
+						    &dst->pCompositeClip->extents))
+	{
+		DEBUGF("%s: allocation failed for region\n", __FUNCTION__);
+		return;
+	}
+
+	pixmap = glamor_get_drawable_pixmap(dst->pDrawable);
+	priv = glamor_get_pixmap_private(pixmap);
+
+	if (!GLAMOR_PIXMAP_PRIV_HAS_FBO(priv))
+		goto fallback;
+	if (dst->alphaMap) {
+		DEBUGF("%s: fallback, dst has an alpha-map\n", __FUNCTION__);
+		goto fallback;
+	}
+
+	need_free_region = TRUE;
+
+	DEBUGF("%s: drawable extents (%d, %d),(%d, %d) x %d\n",
+	     __FUNCTION__,
+	     RegionExtents(&region)->x1, RegionExtents(&region)->y1,
+	     RegionExtents(&region)->x2, RegionExtents(&region)->y2,
+	     RegionNumRects(&region));
+
+	if (dst->pCompositeClip->data &&
+	    (!pixman_region_intersect(&region, &region, dst->pCompositeClip) ||
+	     region_is_empty(&region))) {
+		DEBUGF("%s: zero-intersection between rectangles and clip\n",
+		     __FUNCTION__);
+		pixman_region_fini(&region);
+		return;
+	}
+
+	DEBUGF("%s: clipped extents (%d, %d),(%d, %d) x %d\n",
+	     __FUNCTION__,
+	     RegionExtents(&region)->x1, RegionExtents(&region)->y1,
+	     RegionExtents(&region)->x2, RegionExtents(&region)->y2,
+	     RegionNumRects(&region));
+
+	glamor_get_drawable_deltas(dst->pDrawable, pixmap, &dst_x, &dst_y);
+	pixman_region_translate(&region, dst_x, dst_y);
+
+	DEBUGF("%s: pixmap +(%d, %d) extents (%d, %d),(%d, %d)\n",
+	     __FUNCTION__, dst_x, dst_y,
+	     RegionExtents(&region)->x1, RegionExtents(&region)->y1,
+	     RegionExtents(&region)->x2, RegionExtents(&region)->y2);
+
+
+	boxes = pixman_region_rectangles(&region, &num_boxes);
+	if (op == PictOpSrc || op == PictOpClear) {
+		CARD32 pixel;
+		if (op == PictOpClear)
+			pixel = 0;
+		else
+			miRenderColorToPixel(dst->pFormat, color, &pixel);
+		glamor_solid_boxes(pixmap, boxes, num_boxes, pixel);
+
+		goto done;
+	} else {
+		if (likely(priv->type != GLAMOR_TEXTURE_LARGE)) {
+			int error;
+
+			source = CreateSolidPicture(0, color, &error);
+			if (!source)
+				goto done;
+			if (glamor_composite_clipped_region(op, source,
+						NULL, dst,
+						NULL, NULL, priv,
+						&region,
+						0,0,0,0,0,0))
+				goto done;
+		}
+	}
+fallback:
+	miCompositeRects(op, dst, color, num_rects, rects);
+done:
+	/* XXX xserver-1.8: CompositeRects is not tracked by Damage, so we must
+	 * manually append the damaged regions ourselves.
+	 */
+	DamageRegionAppend(&pixmap->drawable, &region);
+	DamageRegionProcessPending(&pixmap->drawable);
+
+	if (need_free_region)
+		pixman_region_fini(&region);
+	if (source)
+		FreePicture(source, 0);
+	return;
+}
diff --git a/glamor/glamor_copyarea.c b/glamor/glamor_copyarea.c
new file mode 100644
index 000000000..4e6f953d2
--- /dev/null
+++ b/glamor/glamor_copyarea.c
@@ -0,0 +1,676 @@
+/*
+ * Copyright © 2008 Intel Corporation
+ * Copyright © 1998 Keith Packard
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation, and that the name of Keith Packard not be used in
+ * advertising or publicity pertaining to distribution of the software without
+ * specific, written prior permission.  Keith Packard makes no
+ * representations about the suitability of this software for any purpose.  It
+ * is provided "as is" without express or implied warranty.
+ *
+ * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ *
+ * Authors:
+ *    Eric Anholt <eric@anholt.net>
+ *    Zhigang Gong <zhigang.gong@linux.intel.com>
+ */
+
+#include "glamor_priv.h"
+
+/** @file glamor_copyarea.c
+ *
+ * GC CopyArea implementation
+ */
+#ifndef GLAMOR_GLES2
+static Bool
+glamor_copy_n_to_n_fbo_blit(DrawablePtr src,
+			    DrawablePtr dst,
+			    GCPtr gc, BoxPtr box, int nbox, int dx, int dy)
+{
+	ScreenPtr screen = dst->pScreen;
+	PixmapPtr dst_pixmap = glamor_get_drawable_pixmap(dst);
+	PixmapPtr src_pixmap = glamor_get_drawable_pixmap(src);
+	glamor_pixmap_private *src_pixmap_priv, *dst_pixmap_priv;
+	glamor_screen_private *glamor_priv =
+	    glamor_get_screen_private(screen);
+	glamor_gl_dispatch *dispatch;
+	int dst_x_off, dst_y_off, src_x_off, src_y_off, i;
+	int fbo_x_off, fbo_y_off;
+	int src_fbo_x_off, src_fbo_y_off;
+
+	if (!glamor_priv->has_fbo_blit) {
+		glamor_delayed_fallback(screen,
+					"no EXT_framebuffer_blit\n");
+		return FALSE;
+	}
+	src_pixmap_priv = glamor_get_pixmap_private(src_pixmap);
+	dst_pixmap_priv = glamor_get_pixmap_private(dst_pixmap);
+
+	if (gc) {
+		if (gc->alu != GXcopy) {
+			glamor_delayed_fallback(screen, "non-copy ALU\n");
+			return FALSE;
+		}
+	}
+
+	if (!GLAMOR_PIXMAP_PRIV_HAS_FBO(src_pixmap_priv)) {
+		glamor_delayed_fallback(screen, "no src fbo\n");
+		return FALSE;
+	}
+
+	if (glamor_set_destination_pixmap(dst_pixmap))
+		return FALSE;
+
+	pixmap_priv_get_fbo_off(dst_pixmap_priv, &fbo_x_off, &fbo_y_off);
+	pixmap_priv_get_fbo_off(src_pixmap_priv, &src_fbo_x_off, &src_fbo_y_off);
+
+	dispatch = glamor_get_dispatch(glamor_priv);
+	dispatch->glBindFramebuffer(GL_READ_FRAMEBUFFER_EXT,
+				    src_pixmap_priv->base.fbo->fb);
+	glamor_get_drawable_deltas(dst, dst_pixmap, &dst_x_off,
+				   &dst_y_off);
+	glamor_get_drawable_deltas(src, src_pixmap, &src_x_off,
+				   &src_y_off);
+	dst_x_off += fbo_x_off;
+	dst_y_off += fbo_y_off;
+	src_y_off += dy + src_fbo_y_off;
+	src_x_off += src_fbo_x_off;
+
+	for (i = 0; i < nbox; i++) {
+		if (glamor_priv->yInverted) {
+			dispatch->glBlitFramebuffer((box[i].x1 + dx +
+						     src_x_off),
+						    (box[i].y1 +
+						     src_y_off),
+						    (box[i].x2 + dx +
+						     src_x_off),
+						    (box[i].y2 +
+						     src_y_off),
+						    (box[i].x1 +
+						     dst_x_off),
+						    (box[i].y1 +
+						     dst_y_off),
+						    (box[i].x2 +
+						     dst_x_off),
+						    (box[i].y2 +
+						     dst_y_off),
+						    GL_COLOR_BUFFER_BIT,
+						    GL_NEAREST);
+		} else {
+			int flip_dst_y1 =
+			    dst_pixmap->drawable.height - (box[i].y2 +
+							   dst_y_off);
+			int flip_dst_y2 =
+			    dst_pixmap->drawable.height - (box[i].y1 +
+							   dst_y_off);
+			int flip_src_y1 =
+			    src_pixmap->drawable.height - (box[i].y2 +
+							   src_y_off);
+			int flip_src_y2 =
+			    src_pixmap->drawable.height - (box[i].y1 +
+							   src_y_off);
+
+			dispatch->glBlitFramebuffer(box[i].x1 + dx +
+						    src_x_off,
+						    flip_src_y1,
+						    box[i].x2 + dx +
+						    src_x_off,
+						    flip_src_y2,
+						    box[i].x1 +
+						    dst_x_off,
+						    flip_dst_y1,
+						    box[i].x2 +
+						    dst_x_off,
+						    flip_dst_y2,
+						    GL_COLOR_BUFFER_BIT,
+						    GL_NEAREST);
+		}
+	}
+	glamor_put_dispatch(glamor_priv);
+	glamor_priv->state = BLIT_STATE;
+	return TRUE;
+}
+#endif
+
+static Bool
+glamor_copy_n_to_n_textured(DrawablePtr src,
+			    DrawablePtr dst,
+			    GCPtr gc, BoxPtr box, int nbox, int dx, int dy)
+{
+	glamor_screen_private *glamor_priv =
+	    glamor_get_screen_private(dst->pScreen);
+	glamor_gl_dispatch *dispatch;
+	PixmapPtr src_pixmap = glamor_get_drawable_pixmap(src);
+	PixmapPtr dst_pixmap = glamor_get_drawable_pixmap(dst);
+	int i;
+	float vertices[8], texcoords[8];
+	glamor_pixmap_private *src_pixmap_priv;
+	glamor_pixmap_private *dst_pixmap_priv;
+	int src_x_off, src_y_off, dst_x_off, dst_y_off;
+	enum glamor_pixmap_status src_status = GLAMOR_NONE;
+	GLfloat dst_xscale, dst_yscale, src_xscale, src_yscale;
+
+	src_pixmap_priv = glamor_get_pixmap_private(src_pixmap);
+	dst_pixmap_priv = glamor_get_pixmap_private(dst_pixmap);
+
+	if (!src_pixmap_priv->base.gl_fbo) {
+#ifndef GLAMOR_PIXMAP_DYNAMIC_UPLOAD
+		glamor_delayed_fallback(dst->pScreen, "src has no fbo.\n");
+		return FALSE;
+#else
+		src_status = glamor_upload_pixmap_to_texture(src_pixmap);
+		if (src_status != GLAMOR_UPLOAD_DONE)
+			return FALSE;
+
+		src_pixmap_priv = glamor_get_pixmap_private(src_pixmap);
+#endif
+	}
+
+
+	pixmap_priv_get_dest_scale(dst_pixmap_priv, &dst_xscale, &dst_yscale);
+	pixmap_priv_get_scale(src_pixmap_priv, &src_xscale, &src_yscale);
+
+	glamor_get_drawable_deltas(dst, dst_pixmap, &dst_x_off,
+				   &dst_y_off);
+
+	dispatch = glamor_get_dispatch(glamor_priv);
+
+
+	glamor_set_destination_pixmap_priv_nc(dst_pixmap_priv);
+	dispatch->glVertexAttribPointer(GLAMOR_VERTEX_POS, 2, GL_FLOAT,
+					GL_FALSE, 2 * sizeof(float),
+					vertices);
+	dispatch->glEnableVertexAttribArray(GLAMOR_VERTEX_POS);
+
+	glamor_get_drawable_deltas(src, src_pixmap, &src_x_off,
+				   &src_y_off);
+	dx += src_x_off;
+	dy += src_y_off;
+
+	dispatch->glActiveTexture(GL_TEXTURE0);
+	dispatch->glBindTexture(GL_TEXTURE_2D,
+				src_pixmap_priv->base.fbo->tex);
+#ifndef GLAMOR_GLES2
+	dispatch->glEnable(GL_TEXTURE_2D);
+	dispatch->glTexParameteri(GL_TEXTURE_2D,
+				  GL_TEXTURE_WRAP_S,
+				  GL_CLAMP_TO_BORDER);
+	dispatch->glTexParameteri(GL_TEXTURE_2D,
+				  GL_TEXTURE_WRAP_T,
+				  GL_CLAMP_TO_BORDER);
+#endif
+	dispatch->glTexParameteri(GL_TEXTURE_2D,
+				  GL_TEXTURE_MIN_FILTER,
+				  GL_NEAREST);
+	dispatch->glTexParameteri(GL_TEXTURE_2D,
+				  GL_TEXTURE_MAG_FILTER,
+				  GL_NEAREST);
+
+	dispatch->glVertexAttribPointer(GLAMOR_VERTEX_SOURCE, 2,
+					GL_FLOAT, GL_FALSE,
+					2 * sizeof(float),
+					texcoords);
+	dispatch->glEnableVertexAttribArray(GLAMOR_VERTEX_SOURCE);
+	dispatch->glUseProgram(glamor_priv->finish_access_prog[0]);
+	dispatch->glUniform1i(glamor_priv->finish_access_revert[0],
+			      REVERT_NONE);
+	dispatch->glUniform1i(glamor_priv->finish_access_swap_rb[0],
+			      SWAP_NONE_UPLOADING);
+
+	for (i = 0; i < nbox; i++) {
+
+		glamor_set_normalize_vcoords(dst_pixmap_priv,
+					     dst_xscale, dst_yscale,
+					     box[i].x1 + dst_x_off,
+					     box[i].y1 + dst_y_off,
+					     box[i].x2 + dst_x_off,
+					     box[i].y2 + dst_y_off,
+					     glamor_priv->yInverted,
+					     vertices);
+
+		glamor_set_normalize_tcoords(src_pixmap_priv,
+					     src_xscale,
+					     src_yscale,
+					     box[i].x1 + dx,
+					     box[i].y1 + dy,
+					     box[i].x2 + dx,
+					     box[i].y2 + dy,
+					     glamor_priv->yInverted,
+					     texcoords);
+		dispatch->glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
+	}
+
+	dispatch->glDisableVertexAttribArray(GLAMOR_VERTEX_POS);
+	dispatch->glDisableVertexAttribArray(GLAMOR_VERTEX_SOURCE);
+#ifndef GLAMOR_GLES2
+	dispatch->glDisable(GL_TEXTURE_2D);
+#endif
+	dispatch->glUseProgram(0);
+	/* The source texture is bound to a fbo, we have to flush it here. */
+	glamor_put_dispatch(glamor_priv);
+	glamor_priv->state = RENDER_STATE;
+	glamor_priv->render_idle_cnt = 0;
+	return TRUE;
+}
+
+static Bool
+__glamor_copy_n_to_n(DrawablePtr src,
+		     DrawablePtr dst,
+		     GCPtr gc,
+		     BoxPtr box,
+		     int nbox,
+		     int dx,
+		     int dy,
+		     Bool reverse,
+		     Bool upsidedown, Pixel bitplane,
+		     void *closure)
+{
+	PixmapPtr dst_pixmap, src_pixmap, temp_pixmap = NULL;
+	DrawablePtr temp_src = src;
+	glamor_pixmap_private *dst_pixmap_priv, *src_pixmap_priv;
+	glamor_screen_private *glamor_priv;
+	BoxRec bound;
+	ScreenPtr screen;
+	int temp_dx = dx;
+	int temp_dy = dy;
+	int src_x_off, src_y_off, dst_x_off, dst_y_off;
+	int i;
+	int overlaped = 0;
+	Bool ret = FALSE;
+
+	dst_pixmap = glamor_get_drawable_pixmap(dst);
+	dst_pixmap_priv = glamor_get_pixmap_private(dst_pixmap);
+	src_pixmap = glamor_get_drawable_pixmap(src);
+	src_pixmap_priv = glamor_get_pixmap_private(src_pixmap);
+	screen = dst_pixmap->drawable.pScreen;
+	glamor_priv = glamor_get_screen_private(dst->pScreen);
+	glamor_get_drawable_deltas(src, src_pixmap, &src_x_off,
+				   &src_y_off);
+
+	glamor_get_drawable_deltas(dst, dst_pixmap, &dst_x_off,
+				   &dst_y_off);
+
+	if (src_pixmap_priv->base.fbo
+		&& src_pixmap_priv->base.fbo->fb == dst_pixmap_priv->base.fbo->fb) {
+		int x_shift = abs(src_x_off - dx - dst_x_off);
+		int y_shift = abs(src_y_off - dy - dst_y_off);
+		for (i = 0; i < nbox; i++) {
+			if (x_shift < abs(box[i].x2 - box[i].x1)
+			    && y_shift < abs(box[i].y2 - box[i].y1)) {
+				overlaped = 1;
+				break;
+			}
+		}
+	}
+	DEBUGF("Copy %d %d %dx%d dx %d dy %d from %p to %p \n",
+		box[0].x1, box[0].y1,
+		box[0].x2 - box[0].x1, box[0].y2 - box[0].y1,
+		dx, dy,
+		src_pixmap, dst_pixmap);
+#ifndef GLAMOR_GLES2
+	if (!overlaped &&
+	    (glamor_priv->state != RENDER_STATE
+	     || !src_pixmap_priv->base.gl_tex || !dst_pixmap_priv->base.gl_tex)
+	    && glamor_copy_n_to_n_fbo_blit(src, dst, gc, box, nbox, dx,
+					   dy)) {
+		ret = TRUE;
+		goto done;
+	}
+#endif
+	glamor_calculate_boxes_bound(&bound, box, nbox);
+
+	/*  Overlaped indicate the src and dst are the same pixmap. */
+	if (overlaped || (!GLAMOR_PIXMAP_PRIV_HAS_FBO(src_pixmap_priv)
+			  && (((bound.x2 - bound.x1) * (bound.y2 - bound.y1)
+			      * 4 >
+			      src_pixmap->drawable.width *
+			      src_pixmap->drawable.height)
+		             || !(glamor_check_fbo_size(glamor_priv,
+					src_pixmap->drawable.width,
+					src_pixmap->drawable.height))))) {
+
+		temp_pixmap = glamor_create_pixmap(screen,
+						   bound.x2 - bound.x1,
+						   bound.y2 - bound.y1,
+						   src_pixmap->
+						   drawable.depth,
+						   overlaped ? 0 :
+						   GLAMOR_CREATE_PIXMAP_CPU);
+		assert(bound.x2 - bound.x1 <= glamor_priv->max_fbo_size);
+		assert(bound.y2 - bound.y1 <= glamor_priv->max_fbo_size);
+		if (!temp_pixmap)
+			goto done;
+		glamor_translate_boxes(box, nbox, -bound.x1, -bound.y1);
+		temp_src = &temp_pixmap->drawable;
+
+		if (overlaped)
+			glamor_copy_n_to_n_textured(src, temp_src, gc, box,
+						    nbox,
+						    temp_dx + bound.x1,
+						    temp_dy + bound.y1);
+		else
+			fbCopyNtoN(src, temp_src, gc, box, nbox,
+				   temp_dx + bound.x1, temp_dy + bound.y1,
+				   reverse, upsidedown, bitplane, closure);
+		glamor_translate_boxes(box, nbox, bound.x1, bound.y1);
+		temp_dx = -bound.x1;
+		temp_dy = -bound.y1;
+	} else {
+		temp_dx = dx;
+		temp_dy = dy;
+		temp_src = src;
+	}
+
+	if (glamor_copy_n_to_n_textured
+	    (temp_src, dst, gc, box, nbox, temp_dx, temp_dy)) {
+		ret = TRUE;
+	}
+done:
+	if (temp_src != src)
+		glamor_destroy_pixmap(temp_pixmap);
+	return ret;
+}
+
+static Bool
+_glamor_copy_n_to_n(DrawablePtr src,
+		    DrawablePtr dst,
+		    GCPtr gc,
+		    BoxPtr box,
+		    int nbox,
+		    int dx,
+		    int dy,
+		    Bool reverse,
+		    Bool upsidedown, Pixel bitplane,
+		    void *closure, Bool fallback)
+{
+	PixmapPtr dst_pixmap, src_pixmap;
+	glamor_pixmap_private *dst_pixmap_priv, *src_pixmap_priv;
+	glamor_screen_private *glamor_priv;
+	glamor_gl_dispatch *dispatch;
+	BoxPtr extent;
+	RegionRec region;
+	int src_x_off, src_y_off, dst_x_off, dst_y_off;
+	Bool ok = FALSE;
+	int force_clip = 0;
+
+	if (nbox == 0)
+		return TRUE;
+	dst_pixmap = glamor_get_drawable_pixmap(dst);
+	dst_pixmap_priv = glamor_get_pixmap_private(dst_pixmap);
+	src_pixmap = glamor_get_drawable_pixmap(src);
+	src_pixmap_priv = glamor_get_pixmap_private(src_pixmap);
+
+	glamor_priv = glamor_get_screen_private(dst->pScreen);
+
+	DEBUGF("Copy %d %d %dx%d dx %d dy %d from %p to %p \n",
+		box[0].x1, box[0].y1,
+		box[0].x2 - box[0].x1, box[0].y2 - box[0].y1,
+		dx, dy,
+		src_pixmap, dst_pixmap);
+
+	if (!GLAMOR_PIXMAP_PRIV_HAS_FBO(dst_pixmap_priv))
+		goto fall_back;
+
+	if (gc) {
+		if (!glamor_set_planemask(dst_pixmap, gc->planemask))
+			goto fall_back;
+		dispatch = glamor_get_dispatch(glamor_priv);
+		if (!glamor_set_alu(dispatch, gc->alu)) {
+			glamor_put_dispatch(glamor_priv);
+			goto fail;
+		}
+		glamor_put_dispatch(glamor_priv);
+	}
+
+	if (!src_pixmap_priv) {
+		glamor_set_pixmap_type(src_pixmap, GLAMOR_MEMORY);
+		src_pixmap_priv = glamor_get_pixmap_private(src_pixmap);
+	}
+
+	glamor_get_drawable_deltas(src, src_pixmap, &src_x_off,
+				   &src_y_off);
+	glamor_get_drawable_deltas(dst, dst_pixmap, &dst_x_off,
+				   &dst_y_off);
+
+	RegionInitBoxes(&region, box, nbox);
+	extent = RegionExtents(&region);
+
+	if (!glamor_check_fbo_size(glamor_priv,
+		extent->x2 - extent->x1, extent->y2 - extent->y1)
+	   && (src_pixmap_priv->type == GLAMOR_MEMORY
+		|| (src_pixmap_priv == dst_pixmap_priv))) {
+		force_clip = 1;
+	}
+
+	if (force_clip || dst_pixmap_priv->type == GLAMOR_TEXTURE_LARGE
+	    || src_pixmap_priv->type == GLAMOR_TEXTURE_LARGE) {
+			glamor_pixmap_clipped_regions *clipped_dst_regions;
+			int n_dst_region, i, j;
+			PixmapPtr temp_source_pixmap;
+			glamor_pixmap_private *temp_source_priv = NULL;
+
+			RegionTranslate(&region, dst_x_off, dst_y_off);
+			if (!force_clip)
+				clipped_dst_regions = glamor_compute_clipped_regions(dst_pixmap_priv,
+										     &region, &n_dst_region, 0,
+										     reverse, upsidedown);
+			else
+				clipped_dst_regions = glamor_compute_clipped_regions_ext(dst_pixmap_priv,
+										         &region, &n_dst_region,
+											 glamor_priv->max_fbo_size,
+											 glamor_priv->max_fbo_size,
+											 reverse, upsidedown);
+			for(i = 0; i < n_dst_region; i++)
+			{
+				int n_src_region;
+				glamor_pixmap_clipped_regions *clipped_src_regions;
+				BoxPtr current_boxes;
+				int n_current_boxes;
+
+				SET_PIXMAP_FBO_CURRENT(dst_pixmap_priv, clipped_dst_regions[i].block_idx);
+
+				temp_source_pixmap = NULL;
+				if (src_pixmap_priv->type == GLAMOR_TEXTURE_LARGE) {
+					RegionTranslate(clipped_dst_regions[i].region,
+							-dst_x_off + src_x_off + dx, -dst_y_off + src_y_off + dy);
+					clipped_src_regions = glamor_compute_clipped_regions(src_pixmap_priv,
+											     clipped_dst_regions[i].region,
+											     &n_src_region, 0,
+											     reverse, upsidedown);
+					DEBUGF("Source is large pixmap.\n");
+					for (j = 0; j < n_src_region; j++)
+					{
+						if (src_pixmap_priv != dst_pixmap_priv)
+							SET_PIXMAP_FBO_CURRENT(src_pixmap_priv, clipped_src_regions[j].block_idx);
+						else if (src_pixmap_priv == dst_pixmap_priv &&
+						    clipped_src_regions[j].block_idx != clipped_dst_regions[i].block_idx) {
+							/* source and the dest are the same, but need different block_idx.
+							 * we create a empty pixmap and fill the required source fbo and box to
+							 * it. It's a little hacky, but avoid extra copy. */
+							temp_source_pixmap = glamor_create_pixmap(src->pScreen, 0, 0,
+												  src->depth, 0);
+							if (!temp_source_pixmap) {
+								ok = FALSE;
+								goto fail;
+							}
+							src->pScreen->ModifyPixmapHeader(temp_source_pixmap,
+										      src_pixmap->drawable.width,
+										      src_pixmap->drawable.height,
+										      0, 0, src_pixmap->devKind, NULL);
+							temp_source_priv = glamor_get_pixmap_private(temp_source_pixmap);
+							*temp_source_priv = *src_pixmap_priv;
+							temp_source_priv->large.box = src_pixmap_priv->large.box_array[clipped_src_regions[j].block_idx];
+							temp_source_priv->base.fbo = src_pixmap_priv->large.fbo_array[clipped_src_regions[j].block_idx];
+							temp_source_priv->base.pixmap = temp_source_pixmap;
+						}
+						assert(temp_source_pixmap || !(src_pixmap_priv == dst_pixmap_priv
+							&& (clipped_src_regions[j].block_idx != clipped_dst_regions[i].block_idx)));
+
+						RegionTranslate(clipped_src_regions[j].region,
+								-src_x_off - dx,
+								-src_y_off - dy);
+						current_boxes = RegionRects(clipped_src_regions[j].region);
+						n_current_boxes = RegionNumRects(clipped_src_regions[j].region);
+						DEBUGF("dst pixmap fbo idx %d src pixmap fbo idx %d \n",
+							clipped_dst_regions[i].block_idx,
+							clipped_src_regions[j].block_idx);
+						DEBUGF("Copy %d %d %d %d dx %d dy %d from %p to %p \n",
+							current_boxes[0].x1, current_boxes[0].y1,
+							current_boxes[0].x2, current_boxes[0].y2,
+							dx, dy, src_pixmap, dst_pixmap);
+						if (!temp_source_pixmap)
+							ok = __glamor_copy_n_to_n(src, dst, gc, current_boxes,
+										  n_current_boxes, dx, dy, reverse,
+										  upsidedown, bitplane, closure);
+						else {
+							ok = __glamor_copy_n_to_n(&temp_source_pixmap->drawable,
+										  dst, gc, current_boxes,
+										  n_current_boxes, dx, dy, reverse,
+										  upsidedown, bitplane, closure);
+							temp_source_priv->type = GLAMOR_MEMORY;
+							temp_source_priv->base.fbo = NULL;
+							glamor_destroy_pixmap(temp_source_pixmap);
+							temp_source_pixmap = NULL;
+						}
+
+						RegionDestroy(clipped_src_regions[j].region);
+						if (!ok) {
+							assert(0);
+							goto fail;
+						}
+					}
+
+					if (n_src_region == 0)
+						ok = TRUE;
+					free(clipped_src_regions);
+				} else {
+					RegionTranslate(clipped_dst_regions[i].region,
+							- dst_x_off,
+							- dst_y_off);
+					current_boxes = RegionRects(clipped_dst_regions[i].region);
+					n_current_boxes = RegionNumRects(clipped_dst_regions[i].region);
+
+						DEBUGF("dest pixmap fbo idx %d \n",
+							clipped_dst_regions[i].block_idx);
+						DEBUGF("Copy %d %d %d %d dx %d dy %d from %p to %p \n",
+							current_boxes[0].x1, current_boxes[0].y1,
+							current_boxes[0].x2, current_boxes[0].y2,
+							dx, dy, src_pixmap, dst_pixmap);
+
+					ok = __glamor_copy_n_to_n(src, dst, gc, current_boxes,
+								  n_current_boxes, dx, dy, reverse,
+								  upsidedown, bitplane, closure);
+
+				}
+				RegionDestroy(clipped_dst_regions[i].region);
+			}
+		if (n_dst_region == 0)
+			ok = TRUE;
+		free(clipped_dst_regions);
+		RegionUninit(&region);
+	} else {
+		ok = __glamor_copy_n_to_n(src, dst, gc, box, nbox, dx, dy,
+					  reverse, upsidedown, bitplane,
+					  closure);
+	}
+
+fail:
+	dispatch = glamor_get_dispatch(glamor_priv);
+	glamor_set_alu(dispatch, GXcopy);
+	glamor_put_dispatch(glamor_priv);
+
+	if (ok)
+		return TRUE;
+fall_back:
+	if (!fallback
+	    && glamor_ddx_fallback_check_pixmap(src)
+	    && glamor_ddx_fallback_check_pixmap(dst))
+		goto done;
+
+	if (src_pixmap_priv->type == GLAMOR_DRM_ONLY
+	    || dst_pixmap_priv->type == GLAMOR_DRM_ONLY) {
+		LogMessage(X_WARNING,
+			   "Access a DRM only pixmap is not allowed within glamor.\n");
+		return TRUE;
+	}
+	glamor_report_delayed_fallbacks(src->pScreen);
+	glamor_report_delayed_fallbacks(dst->pScreen);
+
+	glamor_fallback("from %p to %p (%c,%c)\n", src, dst,
+			glamor_get_drawable_location(src),
+			glamor_get_drawable_location(dst));
+
+	if (glamor_prepare_access(dst, GLAMOR_ACCESS_RW)) {
+		if (dst == src
+		    || glamor_prepare_access(src, GLAMOR_ACCESS_RO)) {
+			fbCopyNtoN(src, dst, gc, box, nbox,
+				   dx, dy, reverse, upsidedown, bitplane,
+				   closure);
+			if (dst != src)
+				glamor_finish_access(src, GLAMOR_ACCESS_RO);
+		}
+		glamor_finish_access(dst, GLAMOR_ACCESS_RW);
+	}
+	ok = TRUE;
+
+      done:
+	glamor_clear_delayed_fallbacks(src->pScreen);
+	glamor_clear_delayed_fallbacks(dst->pScreen);
+	return ok;
+}
+
+RegionPtr
+glamor_copy_area(DrawablePtr src, DrawablePtr dst, GCPtr gc,
+		 int srcx, int srcy, int width, int height, int dstx,
+		 int dsty)
+{
+	RegionPtr region;
+	region = miDoCopy(src, dst, gc,
+			  srcx, srcy, width, height,
+			  dstx, dsty, glamor_copy_n_to_n, 0, NULL);
+
+	return region;
+}
+
+void
+glamor_copy_n_to_n(DrawablePtr src,
+		   DrawablePtr dst,
+		   GCPtr gc,
+		   BoxPtr box,
+		   int nbox,
+		   int dx,
+		   int dy,
+		   Bool reverse,
+		   Bool upsidedown, Pixel bitplane,
+		   void *closure)
+{
+	_glamor_copy_n_to_n(src, dst, gc, box, nbox, dx,
+			    dy, reverse, upsidedown, bitplane, closure, TRUE);
+}
+
+Bool
+glamor_copy_n_to_n_nf(DrawablePtr src,
+		   DrawablePtr dst,
+		   GCPtr gc,
+		   BoxPtr box,
+		   int nbox,
+		   int dx,
+		   int dy,
+		   Bool reverse,
+		   Bool upsidedown, Pixel bitplane,
+		   void *closure)
+{
+	return _glamor_copy_n_to_n(src, dst, gc, box, nbox, dx,
+				    dy, reverse, upsidedown, bitplane, closure, FALSE);
+}
+
diff --git a/glamor/glamor_copyplane.c b/glamor/glamor_copyplane.c
new file mode 100644
index 000000000..3f2652ac7
--- /dev/null
+++ b/glamor/glamor_copyplane.c
@@ -0,0 +1,72 @@
+/*
+ * Copyright © 2009 Intel Corporation
+ * Copyright © 1998 Keith Packard
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ *
+ * Authors:
+ *    Zhigang Gong <zhigang.gong@gmail.com>
+ *
+ */
+
+#include "glamor_priv.h"
+
+static Bool
+_glamor_copy_plane(DrawablePtr pSrc, DrawablePtr pDst, GCPtr pGC,
+		   int srcx, int srcy, int w, int h, int dstx, int dsty,
+		   unsigned long bitPlane, RegionPtr *pRegion, Bool fallback)
+{
+	if (!fallback 
+	    && glamor_ddx_fallback_check_gc(pGC)
+	    && glamor_ddx_fallback_check_pixmap(pSrc)
+	    && glamor_ddx_fallback_check_pixmap(pDst))
+		goto fail;
+
+	glamor_prepare_access(pDst, GLAMOR_ACCESS_RW);
+	glamor_prepare_access(pSrc, GLAMOR_ACCESS_RO);
+	*pRegion = fbCopyPlane(pSrc, pDst, pGC, srcx, srcy, w, h,
+			  dstx, dsty, bitPlane);
+	glamor_finish_access(pSrc, GLAMOR_ACCESS_RO);
+	glamor_finish_access(pDst, GLAMOR_ACCESS_RW);
+	return TRUE;
+
+ fail:
+	return FALSE;
+}
+
+RegionPtr
+glamor_copy_plane(DrawablePtr pSrc, DrawablePtr pDst, GCPtr pGC,
+		  int srcx, int srcy, int w, int h, int dstx, int dsty,
+		  unsigned long bitPlane)
+{
+	RegionPtr ret;
+	_glamor_copy_plane(pSrc, pDst, pGC, srcx, srcy, w, h,
+			   dstx, dsty, bitPlane, &ret, TRUE);
+	return ret;
+}
+
+Bool
+glamor_copy_plane_nf(DrawablePtr pSrc, DrawablePtr pDst, GCPtr pGC,
+		     int srcx, int srcy, int w, int h, int dstx, int dsty,
+		     unsigned long bitPlane, RegionPtr *pRegion)
+{
+	return _glamor_copy_plane(pSrc, pDst, pGC, srcx, srcy, w, h,
+				  dstx, dsty, bitPlane, pRegion, FALSE);
+}
diff --git a/glamor/glamor_copywindow.c b/glamor/glamor_copywindow.c
new file mode 100644
index 000000000..b181ff529
--- /dev/null
+++ b/glamor/glamor_copywindow.c
@@ -0,0 +1,58 @@
+/*
+ * Copyright © 2008 Intel Corporation
+ * Copyright © 1998 Keith Packard
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation, and that the name of Keith Packard not be used in
+ * advertising or publicity pertaining to distribution of the software without
+ * specific, written prior permission.  Keith Packard makes no
+ * representations about the suitability of this software for any purpose.  It
+ * is provided "as is" without express or implied warranty.
+ *
+ * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "glamor_priv.h"
+
+/** @file glamor_copywindow.c
+ *
+ * Screen CopyWindow implementation.
+ */
+
+void
+glamor_copy_window(WindowPtr win, DDXPointRec old_origin,
+		   RegionPtr src_region)
+{
+	RegionRec dst_region;
+	int dx, dy;
+	PixmapPtr pixmap = win->drawable.pScreen->GetWindowPixmap(win);
+
+	dx = old_origin.x - win->drawable.x;
+	dy = old_origin.y - win->drawable.y;
+	REGION_TRANSLATE(win->drawable.pScreen, src_region, -dx, -dy);
+
+	REGION_INIT(win->drawable.pScreen, &dst_region, NullBox, 0);
+
+	REGION_INTERSECT(win->drawable.pScreen, &dst_region,
+			 &win->borderClip, src_region);
+#ifdef COMPOSITE
+	if (pixmap->screen_x || pixmap->screen_y)
+		REGION_TRANSLATE(win->drawable.pScreen, &dst_region,
+				 -pixmap->screen_x, -pixmap->screen_y);
+#endif
+
+	miCopyRegion(&pixmap->drawable, &pixmap->drawable,
+		     NULL, &dst_region, dx, dy, glamor_copy_n_to_n, 0,
+		     NULL);
+
+	REGION_UNINIT(win->drawable.pScreen, &dst_region);
+}
diff --git a/glamor/glamor_core.c b/glamor/glamor_core.c
new file mode 100644
index 000000000..eb1a08d43
--- /dev/null
+++ b/glamor/glamor_core.c
@@ -0,0 +1,612 @@
+/*
+ * Copyright © 2001 Keith Packard
+ * Copyright © 2008 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ *
+ * Authors:
+ *    Eric Anholt <eric@anholt.net>
+ *
+ */
+
+/** @file glamor_core.c
+ *
+ * This file covers core X rendering in glamor.
+ */
+
+#include <stdlib.h>
+
+#include "glamor_priv.h"
+
+const Bool
+glamor_get_drawable_location(const DrawablePtr drawable)
+{
+	PixmapPtr pixmap = glamor_get_drawable_pixmap(drawable);
+	glamor_pixmap_private *pixmap_priv =
+	    glamor_get_pixmap_private(pixmap);
+	glamor_screen_private *glamor_priv =
+	    glamor_get_screen_private(drawable->pScreen);
+	if (pixmap_priv == NULL || pixmap_priv->base.gl_fbo == 0)
+		return 'm';
+	if (pixmap_priv->base.fbo->fb == glamor_priv->screen_fbo)
+		return 's';
+	else
+		return 'f';
+}
+
+GLint
+glamor_compile_glsl_prog(glamor_gl_dispatch * dispatch, GLenum type,
+			 const char *source)
+{
+	GLint ok;
+	GLint prog;
+
+	prog = dispatch->glCreateShader(type);
+	dispatch->glShaderSource(prog, 1, (const GLchar **) &source, NULL);
+	dispatch->glCompileShader(prog);
+	dispatch->glGetShaderiv(prog, GL_COMPILE_STATUS, &ok);
+	if (!ok) {
+		GLchar *info;
+		GLint size;
+
+		dispatch->glGetShaderiv(prog, GL_INFO_LOG_LENGTH, &size);
+		info = malloc(size);
+		if (info) {
+			dispatch->glGetShaderInfoLog(prog, size, NULL, info);
+			ErrorF("Failed to compile %s: %s\n",
+			       type == GL_FRAGMENT_SHADER ? "FS" : "VS", info);
+			ErrorF("Program source:\n%s", source);
+			free(info);
+		} else
+			ErrorF("Failed to get shader compilation info.\n");
+		FatalError("GLSL compile failure\n");
+	}
+
+	return prog;
+}
+
+void
+glamor_link_glsl_prog(glamor_gl_dispatch * dispatch, GLint prog)
+{
+	GLint ok;
+
+	dispatch->glLinkProgram(prog);
+	dispatch->glGetProgramiv(prog, GL_LINK_STATUS, &ok);
+	if (!ok) {
+		GLchar *info;
+		GLint size;
+
+		dispatch->glGetProgramiv(prog, GL_INFO_LOG_LENGTH, &size);
+		info = malloc(size);
+
+		dispatch->glGetProgramInfoLog(prog, size, NULL, info);
+		ErrorF("Failed to link: %s\n", info);
+		FatalError("GLSL link failure\n");
+	}
+}
+
+
+Bool
+glamor_prepare_access(DrawablePtr drawable, glamor_access_t access)
+{
+	PixmapPtr pixmap = glamor_get_drawable_pixmap(drawable);
+	return glamor_download_pixmap_to_cpu(pixmap, access);
+}
+
+/*
+ *  When downloading a unsupported color format to CPU memory,
+    we need to shuffle the color elements and then use a supported
+    color format to read it back to CPU memory.
+
+    For an example, the picture's format is PICT_b8g8r8a8,
+    Then the expecting color layout is as below (little endian):
+    0	1	2	3   : address
+    a	r	g	b
+
+    Now the in GLES2 the supported color format is GL_RGBA, type is
+    GL_UNSIGNED_TYPE, then we need to shuffle the fragment
+    color as :
+	frag_color = sample(texture).argb;
+    before we use glReadPixel to get it back.
+
+    For the uploading process, the shuffle is a revert shuffle.
+    We still use GL_RGBA, GL_UNSIGNED_BYTE to upload the color
+    to a texture, then let's see
+    0	1	2	3   : address
+    a	r	g	b   : correct colors
+    R	G	B	A   : GL_RGBA with GL_UNSIGNED_BYTE
+
+    Now we need to shuffle again, the mapping rule is
+    r = G, g = B, b = A, a = R. Then the uploading shuffle is as
+    below:
+	frag_color = sample(texture).gbar;
+*/
+
+void
+glamor_init_finish_access_shaders(ScreenPtr screen)
+{
+	glamor_screen_private *glamor_priv;
+	glamor_gl_dispatch *dispatch;
+	const char *vs_source =
+	    "attribute vec4 v_position;\n"
+	    "attribute vec4 v_texcoord0;\n"
+	    "varying vec2 source_texture;\n"
+	    "void main()\n"
+	    "{\n"
+	    "	gl_Position = v_position;\n"
+	    "	source_texture = v_texcoord0.xy;\n" "}\n";
+
+	const char *common_source =
+	    GLAMOR_DEFAULT_PRECISION
+	    "varying vec2 source_texture;\n"
+	    "uniform sampler2D sampler;\n"
+	    "uniform int revert;\n"
+	    "uniform int swap_rb;\n"
+
+	    "#define REVERT_NONE       			0\n"
+	    "#define REVERT_NORMAL     			1\n"
+	    "#define SWAP_NONE_DOWNLOADING  		0\n"
+	    "#define SWAP_DOWNLOADING  			1\n"
+	    "#define SWAP_UPLOADING	  		2\n"
+	    "#define SWAP_NONE_UPLOADING		3\n";
+
+	const char *fs_source =
+	    "void main()\n"
+	    "{\n"
+	    "   if (revert == REVERT_NONE) \n"
+	    "    { \n"
+	    "     if ((swap_rb != SWAP_NONE_DOWNLOADING) && (swap_rb != SWAP_NONE_UPLOADING))   \n"
+	    "	  	gl_FragColor = texture2D(sampler, source_texture).bgra;\n"
+	    "     else \n"
+	    "	  	gl_FragColor = texture2D(sampler, source_texture).rgba;\n"
+	    "    } \n"
+	    "   else \n"
+	    "    { \n"
+	    "     if (swap_rb == SWAP_DOWNLOADING)   \n"
+	    "	  	gl_FragColor = texture2D(sampler, source_texture).argb;\n"
+	    "     else if (swap_rb == SWAP_NONE_DOWNLOADING)\n"
+	    "	  	gl_FragColor = texture2D(sampler, source_texture).abgr;\n"
+	    "     else if (swap_rb == SWAP_UPLOADING)\n"
+	    "	  	gl_FragColor = texture2D(sampler, source_texture).gbar;\n"
+	    "     else if (swap_rb == SWAP_NONE_UPLOADING)\n"
+	    "	  	gl_FragColor = texture2D(sampler, source_texture).abgr;\n"
+	    "    } \n" "}\n";
+
+	const char *set_alpha_source =
+	    "void main()\n"
+	    "{\n"
+	    "   if (revert == REVERT_NONE) \n"
+	    "    { \n"
+	    "     if ((swap_rb != SWAP_NONE_DOWNLOADING) && (swap_rb != SWAP_NONE_UPLOADING))   \n"
+	    "	  	gl_FragColor = vec4(texture2D(sampler, source_texture).bgr, 1);\n"
+	    "     else \n"
+	    "	  	gl_FragColor = vec4(texture2D(sampler, source_texture).rgb, 1);\n"
+	    "    } \n"
+	    "   else \n"
+	    "    { \n"
+	    "     if (swap_rb == SWAP_DOWNLOADING)   \n"
+	    "	  	gl_FragColor = vec4(1, texture2D(sampler, source_texture).rgb);\n"
+	    "     else if (swap_rb == SWAP_NONE_DOWNLOADING)\n"
+	    "	  	gl_FragColor = vec4(1, texture2D(sampler, source_texture).bgr);\n"
+	    "     else if (swap_rb == SWAP_UPLOADING)\n"
+	    "	  	gl_FragColor = vec4(texture2D(sampler, source_texture).gba, 1);\n"
+	    "     else if (swap_rb == SWAP_NONE_UPLOADING)\n"
+	    "	  	gl_FragColor = vec4(texture2D(sampler, source_texture).abg, 1);\n"
+	    "    } \n"
+	    "}\n";
+	GLint fs_prog, vs_prog, avs_prog, set_alpha_prog;
+	GLint sampler_uniform_location;
+	char *source;
+
+	glamor_priv = glamor_get_screen_private(screen);
+	dispatch =  glamor_get_dispatch(glamor_priv);
+	glamor_priv->finish_access_prog[0] = dispatch->glCreateProgram();
+	glamor_priv->finish_access_prog[1] = dispatch->glCreateProgram();
+
+	vs_prog = glamor_compile_glsl_prog(dispatch, GL_VERTEX_SHADER,
+				     vs_source);
+
+	XNFasprintf(&source, "%s%s", common_source, fs_source);
+	fs_prog = glamor_compile_glsl_prog(dispatch, GL_FRAGMENT_SHADER,
+				     source);
+	free(source);
+
+	dispatch->glAttachShader(glamor_priv->finish_access_prog[0],
+				 vs_prog);
+	dispatch->glAttachShader(glamor_priv->finish_access_prog[0],
+				 fs_prog);
+
+	avs_prog = glamor_compile_glsl_prog(dispatch, GL_VERTEX_SHADER,
+				     vs_source);
+
+	XNFasprintf(&source, "%s%s", common_source, set_alpha_source);
+	set_alpha_prog = glamor_compile_glsl_prog(dispatch, GL_FRAGMENT_SHADER,
+						  source);
+	free(source);
+
+	dispatch->glAttachShader(glamor_priv->finish_access_prog[1],
+				 avs_prog);
+	dispatch->glAttachShader(glamor_priv->finish_access_prog[1],
+				 set_alpha_prog);
+
+	dispatch->glBindAttribLocation(glamor_priv->finish_access_prog[0],
+				       GLAMOR_VERTEX_POS, "v_position");
+	dispatch->glBindAttribLocation(glamor_priv->finish_access_prog[0],
+				       GLAMOR_VERTEX_SOURCE,
+				       "v_texcoord0");
+	glamor_link_glsl_prog(dispatch,
+			      glamor_priv->finish_access_prog[0]);
+
+	dispatch->glBindAttribLocation(glamor_priv->finish_access_prog[1],
+				       GLAMOR_VERTEX_POS, "v_position");
+	dispatch->glBindAttribLocation(glamor_priv->finish_access_prog[1],
+				       GLAMOR_VERTEX_SOURCE,
+				       "v_texcoord0");
+	glamor_link_glsl_prog(dispatch,
+			      glamor_priv->finish_access_prog[1]);
+
+	glamor_priv->finish_access_revert[0] =
+	    dispatch->
+	    glGetUniformLocation(glamor_priv->finish_access_prog[0],
+				 "revert");
+
+	glamor_priv->finish_access_swap_rb[0] =
+	    dispatch->
+	    glGetUniformLocation(glamor_priv->finish_access_prog[0],
+				 "swap_rb");
+	sampler_uniform_location =
+	    dispatch->
+	    glGetUniformLocation(glamor_priv->finish_access_prog[0],
+				 "sampler");
+	dispatch->glUseProgram(glamor_priv->finish_access_prog[0]);
+	dispatch->glUniform1i(sampler_uniform_location, 0);
+	dispatch->glUniform1i(glamor_priv->finish_access_revert[0], 0);
+	dispatch->glUniform1i(glamor_priv->finish_access_swap_rb[0], 0);
+	dispatch->glUseProgram(0);
+
+	glamor_priv->finish_access_revert[1] =
+	    dispatch->
+	    glGetUniformLocation(glamor_priv->finish_access_prog[1],
+				 "revert");
+	glamor_priv->finish_access_swap_rb[1] =
+	    dispatch->
+	    glGetUniformLocation(glamor_priv->finish_access_prog[1],
+				 "swap_rb");
+	sampler_uniform_location =
+	    dispatch->
+	    glGetUniformLocation(glamor_priv->finish_access_prog[1],
+				 "sampler");
+	dispatch->glUseProgram(glamor_priv->finish_access_prog[1]);
+	dispatch->glUniform1i(glamor_priv->finish_access_revert[1], 0);
+	dispatch->glUniform1i(sampler_uniform_location, 0);
+	dispatch->glUniform1i(glamor_priv->finish_access_swap_rb[1], 0);
+	dispatch->glUseProgram(0);
+	glamor_put_dispatch(glamor_priv);
+}
+
+void
+glamor_fini_finish_access_shaders(ScreenPtr screen)
+{
+	glamor_screen_private *glamor_priv;
+	glamor_gl_dispatch *dispatch;
+
+	glamor_priv = glamor_get_screen_private(screen);
+	dispatch =  glamor_get_dispatch(glamor_priv);
+	dispatch->glDeleteProgram(glamor_priv->finish_access_prog[0]);
+	dispatch->glDeleteProgram(glamor_priv->finish_access_prog[1]);
+	glamor_put_dispatch(glamor_priv);
+}
+
+void
+glamor_finish_access(DrawablePtr drawable, glamor_access_t access_mode)
+{
+	PixmapPtr pixmap = glamor_get_drawable_pixmap(drawable);
+	glamor_pixmap_private *pixmap_priv =
+	    glamor_get_pixmap_private(pixmap);
+	glamor_screen_private *glamor_priv =
+	    glamor_get_screen_private(drawable->pScreen);
+
+	if (!GLAMOR_PIXMAP_PRIV_HAS_FBO_DOWNLOADED(pixmap_priv))
+		return;
+
+	if (access_mode != GLAMOR_ACCESS_RO) {
+		glamor_restore_pixmap_to_texture(pixmap);
+	}
+
+	if (pixmap_priv->base.fbo->pbo != 0 && pixmap_priv->base.fbo->pbo_valid) {
+		glamor_gl_dispatch *dispatch;
+
+		assert(glamor_priv->gl_flavor == GLAMOR_GL_DESKTOP);
+
+		dispatch = glamor_get_dispatch(glamor_priv);
+		dispatch->glBindBuffer(GL_PIXEL_PACK_BUFFER, 0);
+		dispatch->glBindBuffer(GL_PIXEL_UNPACK_BUFFER, 0);
+		dispatch->glDeleteBuffers(1, &pixmap_priv->base.fbo->pbo);
+		glamor_put_dispatch(glamor_priv);
+
+		pixmap_priv->base.fbo->pbo_valid = FALSE;
+		pixmap_priv->base.fbo->pbo = 0;
+	} else {
+		free(pixmap->devPrivate.ptr);
+	}
+
+	if (pixmap_priv->type == GLAMOR_TEXTURE_DRM)
+		pixmap->devKind = pixmap_priv->base.drm_stride;
+
+	if (pixmap_priv->base.gl_fbo == GLAMOR_FBO_DOWNLOADED)
+		pixmap_priv->base.gl_fbo = GLAMOR_FBO_NORMAL;
+
+	pixmap->devPrivate.ptr = NULL;
+}
+
+
+/**
+ * Calls uxa_prepare_access with UXA_PREPARE_SRC for the tile, if that is the
+ * current fill style.
+ *
+ * Solid doesn't use an extra pixmap source, so we don't worry about them.
+ * Stippled/OpaqueStippled are 1bpp and can be in fb, so we should worry
+ * about them.
+ */
+Bool
+glamor_prepare_access_gc(GCPtr gc)
+{
+	if (gc->stipple) {
+		if (!glamor_prepare_access
+		    (&gc->stipple->drawable, GLAMOR_ACCESS_RO))
+			return FALSE;
+	}
+	if (gc->fillStyle == FillTiled) {
+		if (!glamor_prepare_access(&gc->tile.pixmap->drawable,
+					   GLAMOR_ACCESS_RO)) {
+			if (gc->stipple)
+				glamor_finish_access(&gc->
+						     stipple->drawable, 
+						     GLAMOR_ACCESS_RO);
+			return FALSE;
+		}
+	}
+	return TRUE;
+}
+
+/**
+ * Finishes access to the tile in the GC, if used.
+ */
+void
+glamor_finish_access_gc(GCPtr gc)
+{
+	if (gc->fillStyle == FillTiled)
+		glamor_finish_access(&gc->tile.pixmap->drawable, GLAMOR_ACCESS_RO);
+	if (gc->stipple)
+		glamor_finish_access(&gc->stipple->drawable, GLAMOR_ACCESS_RO);
+}
+
+Bool
+glamor_stipple(PixmapPtr pixmap, PixmapPtr stipple,
+	       int x, int y, int width, int height,
+	       unsigned char alu, unsigned long planemask,
+	       unsigned long fg_pixel, unsigned long bg_pixel,
+	       int stipple_x, int stipple_y)
+{
+	glamor_fallback("stubbed out stipple depth %d\n",
+			pixmap->drawable.depth);
+	return FALSE;
+}
+
+GCOps glamor_gc_ops = {
+	.FillSpans = glamor_fill_spans,
+	.SetSpans = glamor_set_spans,
+	.PutImage = glamor_put_image,
+	.CopyArea = glamor_copy_area,
+	.CopyPlane = glamor_copy_plane,
+	.PolyPoint = glamor_poly_point,
+	.Polylines = glamor_poly_lines,
+	.PolySegment = glamor_poly_segment,
+	.PolyRectangle = miPolyRectangle,
+	.PolyArc = miPolyArc,
+	.FillPolygon = miFillPolygon,
+	.PolyFillRect = glamor_poly_fill_rect,
+	.PolyFillArc = miPolyFillArc,
+	.PolyText8 = miPolyText8,
+	.PolyText16 = miPolyText16,
+	.ImageText8 = miImageText8,
+	.ImageText16 = miImageText16,
+	.ImageGlyphBlt = glamor_image_glyph_blt, //miImageGlyphBlt,
+	.PolyGlyphBlt = glamor_poly_glyph_blt, //miPolyGlyphBlt,
+	.PushPixels = glamor_push_pixels, //miPushPixels,
+};
+
+/**
+ * uxa_validate_gc() sets the ops to glamor's implementations, which may be
+ * accelerated or may sync the card and fall back to fb.
+ */
+void
+glamor_validate_gc(GCPtr gc, unsigned long changes, DrawablePtr drawable)
+{
+	/* fbValidateGC will do direct access to pixmaps if the tiling has changed.
+	 * Preempt fbValidateGC by doing its work and masking the change out, so
+	 * that we can do the Prepare/finish_access.
+	 */
+#ifdef FB_24_32BIT
+	if ((changes & GCTile) && fbGetRotatedPixmap(gc)) {
+		gc->pScreen->DestroyPixmap(fbGetRotatedPixmap(gc));
+		fbGetRotatedPixmap(gc) = 0;
+	}
+
+	if (gc->fillStyle == FillTiled) {
+		PixmapPtr old_tile, new_tile;
+
+		old_tile = gc->tile.pixmap;
+		if (old_tile->drawable.bitsPerPixel !=
+		    drawable->bitsPerPixel) {
+			new_tile = fbGetRotatedPixmap(gc);
+			if (!new_tile ||
+			    new_tile->drawable.bitsPerPixel !=
+			    drawable->bitsPerPixel) {
+				if (new_tile)
+					gc->pScreen->DestroyPixmap
+					    (new_tile);
+				/* fb24_32ReformatTile will do direct access of a newly-
+				 * allocated pixmap.
+				 */
+				glamor_fallback
+				    ("GC %p tile FB_24_32 transformat %p.\n",
+				     gc, old_tile);
+
+				if (glamor_prepare_access
+				    (&old_tile->drawable,
+				     GLAMOR_ACCESS_RO)) {
+					new_tile =
+					    fb24_32ReformatTile
+					    (old_tile,
+					     drawable->bitsPerPixel);
+					glamor_finish_access
+					    (&old_tile->drawable, GLAMOR_ACCESS_RO);
+				}
+			}
+			if (new_tile) {
+				fbGetRotatedPixmap(gc) = old_tile;
+				gc->tile.pixmap = new_tile;
+				changes |= GCTile;
+			}
+		}
+	}
+#endif
+	if (changes & GCTile) {
+		if (!gc->tileIsPixel) {
+			glamor_pixmap_private *pixmap_priv =
+			    glamor_get_pixmap_private(gc->tile.pixmap);
+			if ((!GLAMOR_PIXMAP_PRIV_HAS_FBO(pixmap_priv))
+			    && FbEvenTile(gc->tile.pixmap->drawable.width *
+					  drawable->bitsPerPixel)) {
+				glamor_fallback
+				    ("GC %p tile changed %p.\n", gc,
+				     gc->tile.pixmap);
+				if (glamor_prepare_access
+				    (&gc->tile.pixmap->drawable,
+				     GLAMOR_ACCESS_RW)) {
+					fbPadPixmap(gc->tile.pixmap);
+					glamor_finish_access
+					    (&gc->tile.pixmap->drawable, GLAMOR_ACCESS_RW);
+				}
+			}
+		}
+		/* Mask out the GCTile change notification, now that we've done FB's
+		 * job for it.
+		 */
+		changes &= ~GCTile;
+	}
+
+	if (changes & GCStipple && gc->stipple) {
+		/* We can't inline stipple handling like we do for GCTile because
+		 * it sets fbgc privates.
+		 */
+		if (glamor_prepare_access
+		    (&gc->stipple->drawable, GLAMOR_ACCESS_RW)) {
+			fbValidateGC(gc, changes, drawable);
+			glamor_finish_access(&gc->stipple->drawable, GLAMOR_ACCESS_RW);
+		}
+	} else {
+		fbValidateGC(gc, changes, drawable);
+	}
+
+	gc->ops = &glamor_gc_ops;
+}
+
+static GCFuncs glamor_gc_funcs = {
+	glamor_validate_gc,
+	miChangeGC,
+	miCopyGC,
+	miDestroyGC,
+	miChangeClip,
+	miDestroyClip,
+	miCopyClip
+};
+
+/**
+ * exaCreateGC makes a new GC and hooks up its funcs handler, so that
+ * exaValidateGC() will get called.
+ */
+int
+glamor_create_gc(GCPtr gc)
+{
+	if (!fbCreateGC(gc))
+		return FALSE;
+
+	gc->funcs = &glamor_gc_funcs;
+
+	return TRUE;
+}
+
+RegionPtr
+glamor_bitmap_to_region(PixmapPtr pixmap)
+{
+	RegionPtr ret;
+	glamor_fallback("pixmap %p \n", pixmap);
+	if (!glamor_prepare_access(&pixmap->drawable, GLAMOR_ACCESS_RO))
+		return NULL;
+	ret = fbPixmapToRegion(pixmap);
+	glamor_finish_access(&pixmap->drawable, GLAMOR_ACCESS_RO);
+	return ret;
+}
+
+/* Borrow from cairo. */
+Bool
+glamor_gl_has_extension(const char *extension)
+{
+	const char *pext;
+	int ext_len;
+	ext_len = strlen(extension);
+
+	pext = (const char*)glGetString(GL_EXTENSIONS);
+
+	if (pext == NULL || extension == NULL)
+		return FALSE;
+
+	while ((pext = strstr(pext, extension)) != NULL) {
+		if (pext[ext_len] == ' ' || pext[ext_len] == '\0')
+			return TRUE;
+		pext += ext_len;
+	}
+	return FALSE;
+}
+
+int
+glamor_gl_get_version(void)
+{
+	int major, minor;
+	const char *version = (const char *) glGetString(GL_VERSION);
+	const char *dot = version == NULL ? NULL : strchr(version, '.');
+	const char *major_start = dot;
+
+	/* Sanity check */
+	if (dot == NULL || dot == version || *(dot + 1) == '\0') {
+		major = 0;
+		minor = 0;
+	} else {
+		/* Find the start of the major version in the string */
+		while (major_start > version && *major_start != ' ')
+			--major_start;
+		major = strtol(major_start, NULL, 10);
+		minor = strtol(dot + 1, NULL, 10);
+	}
+
+	return GLAMOR_GL_VERSION_ENCODE(major, minor);
+}
diff --git a/glamor/glamor_debug.h b/glamor/glamor_debug.h
new file mode 100644
index 000000000..f0c969b11
--- /dev/null
+++ b/glamor/glamor_debug.h
@@ -0,0 +1,116 @@
+/*
+ * Copyright © 2009 Intel Corporation
+ * Copyright © 1998 Keith Packard
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ *
+ * Authors:
+ *    Zhigang Gong <zhigang.gong@gmail.com>
+ *
+ */
+
+#ifndef __GLAMOR_DEBUG_H__
+#define __GLAMOR_DEBUG_H__
+
+
+#define GLAMOR_DELAYED_STRING_MAX 64
+
+#define GLAMOR_DEBUG_NONE                     0
+#define GLAMOR_DEBUG_UNIMPL                   0
+#define GLAMOR_DEBUG_FALLBACK                 1
+#define GLAMOR_DEBUG_TEXTURE_DOWNLOAD         2
+#define GLAMOR_DEBUG_TEXTURE_DYNAMIC_UPLOAD   3
+
+extern void
+AbortServer(void)
+    _X_NORETURN;
+
+#define GLAMOR_PANIC(_format_, ...)			\
+  do {							\
+    LogMessageVerb(X_NONE, 0, "Glamor Fatal Error"	\
+		   " at %32s line %d: " _format_ "\n",	\
+		   __FUNCTION__, __LINE__,		\
+		   ##__VA_ARGS__ );			\
+    exit(1);                                            \
+  } while(0)
+
+
+
+
+#define __debug_output_message(_format_, _prefix_, ...) \
+  LogMessageVerb(X_NONE, 0,				\
+		 "%32s:\t" _format_ ,		\
+		 /*_prefix_,*/				\
+		 __FUNCTION__,				\
+		 ##__VA_ARGS__)
+
+#define glamor_debug_output(_level_, _format_,...)	\
+  do {							\
+    if (glamor_debug_level >= _level_)			\
+      __debug_output_message(_format_,			\
+			     "Glamor debug",		\
+			     ##__VA_ARGS__);		\
+  } while(0)
+
+
+#define glamor_fallback(_format_,...)			\
+  do {							\
+    if (glamor_debug_level >= GLAMOR_DEBUG_FALLBACK)	\
+      __debug_output_message(_format_,			\
+			     "Glamor fallback",		\
+			     ##__VA_ARGS__);} while(0)
+
+
+
+#define glamor_delayed_fallback(_screen_, _format_,...)			\
+  do {									\
+    if (glamor_debug_level >= GLAMOR_DEBUG_FALLBACK)  {			\
+      glamor_screen_private *_glamor_priv_;				\
+      _glamor_priv_ = glamor_get_screen_private(_screen_);		\
+      _glamor_priv_->delayed_fallback_pending = 1;			\
+      snprintf(_glamor_priv_->delayed_fallback_string,			\
+	       GLAMOR_DELAYED_STRING_MAX,				\
+	       "glamor delayed fallback: \t%s " _format_ ,		\
+               __FUNCTION__, ##__VA_ARGS__); } } while(0)
+
+
+#define glamor_clear_delayed_fallbacks(_screen_)			\
+  do {									\
+    if (glamor_debug_level >= GLAMOR_DEBUG_FALLBACK) {			\
+      glamor_screen_private *_glamor_priv_;				\
+	_glamor_priv_ = glamor_get_screen_private(_screen_);		\
+      _glamor_priv_->delayed_fallback_pending = 0;  } } while(0)
+
+#define glamor_report_delayed_fallbacks(_screen_)			\
+  do {									\
+    if (glamor_debug_level >= GLAMOR_DEBUG_FALLBACK) {			\
+      glamor_screen_private *_glamor_priv_;				\
+      _glamor_priv_ = glamor_get_screen_private(_screen_);		\
+      LogMessageVerb(X_INFO, 0, "%s",					\
+		     _glamor_priv_->delayed_fallback_string);		\
+      _glamor_priv_->delayed_fallback_pending = 0;  } } while(0)
+
+#define DEBUGF(str, ...)  do {} while(0)
+//#define DEBUGF(str, ...) ErrorF(str, ##__VA_ARGS__)
+#define DEBUGRegionPrint(x) do {} while (0)
+//#define DEBUGRegionPrint RegionPrint
+
+
+#endif
diff --git a/glamor/glamor_egl.c b/glamor/glamor_egl.c
new file mode 100644
index 000000000..ff4c0bdd9
--- /dev/null
+++ b/glamor/glamor_egl.c
@@ -0,0 +1,860 @@
+/*
+ * Copyright © 2010 Intel Corporation.
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use, copy,
+ * modify, merge, publish, distribute, sublicense, and/or sell copies
+ * of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including
+ * the next paragraph) shall be included in all copies or substantial
+ * portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT.  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * Authors:
+ *    Zhigang Gong <zhigang.gong@linux.intel.com>
+ *
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#define GLAMOR_FOR_XORG
+#include <xorg-server.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <sys/ioctl.h>
+#include <errno.h>
+#include <xf86.h>
+#include <xf86drm.h>
+#define GL_GLEXT_PROTOTYPES
+#define EGL_EGLEXT_PROTOTYPES
+#define EGL_DISPLAY_NO_X_MESA
+
+#ifdef GLAMOR_HAS_GBM
+#include <gbm.h>
+#include <drm_fourcc.h>
+#endif
+
+#if GLAMOR_GLES2
+#include <GLES2/gl2.h>
+#include <GLES2/gl2ext.h>
+#else
+#include <GL/gl.h>
+#endif
+
+#define MESA_EGL_NO_X11_HEADERS
+#include <EGL/egl.h>
+#include <EGL/eglext.h>
+
+#include "glamor.h"
+#include "compat-api.h"
+#include "glamor_gl_dispatch.h"
+#ifdef GLX_USE_SHARED_DISPATCH
+#include "glapi.h"
+#endif
+
+static const char glamor_name[] = "glamor";
+
+static DevPrivateKeyRec glamor_egl_pixmap_private_key_index;
+DevPrivateKey glamor_egl_pixmap_private_key = &glamor_egl_pixmap_private_key_index;
+
+static void
+glamor_identify(int flags)
+{
+	xf86Msg(X_INFO, "%s: OpenGL accelerated X.org driver based.\n",
+		glamor_name);
+}
+
+struct glamor_egl_screen_private {
+	EGLDisplay display;
+	EGLContext context;
+	EGLint major, minor;
+
+	CreateScreenResourcesProcPtr CreateScreenResources;
+	CloseScreenProcPtr CloseScreen;
+	int fd;
+	EGLImageKHR front_image;
+	PixmapPtr *back_pixmap;
+	int cpp;
+#ifdef GLAMOR_HAS_GBM
+	struct gbm_device *gbm;
+#endif
+	int has_gem;
+	void *glamor_context;
+	void *current_context;
+	int gl_context_depth;
+	int dri3_capable;
+
+	PFNEGLCREATEIMAGEKHRPROC egl_create_image_khr;
+	PFNEGLDESTROYIMAGEKHRPROC egl_destroy_image_khr;
+	PFNGLEGLIMAGETARGETTEXTURE2DOESPROC egl_image_target_texture2d_oes;
+	struct glamor_gl_dispatch *dispatch;
+	CloseScreenProcPtr saved_close_screen;
+	xf86FreeScreenProc *saved_free_screen;
+};
+
+int xf86GlamorEGLPrivateIndex = -1;
+
+static struct glamor_egl_screen_private *
+glamor_egl_get_screen_private(ScrnInfoPtr scrn)
+{
+	return (struct glamor_egl_screen_private *)
+	    scrn->privates[xf86GlamorEGLPrivateIndex].ptr;
+}
+#ifdef GLX_USE_SHARED_DISPATCH
+_X_EXPORT void
+glamor_egl_make_current(ScreenPtr screen)
+{
+	ScrnInfoPtr scrn = xf86ScreenToScrn(screen);
+	struct glamor_egl_screen_private *glamor_egl =
+	    glamor_egl_get_screen_private(scrn);
+
+	if (glamor_egl->gl_context_depth++)
+		return;
+
+	GET_CURRENT_CONTEXT(glamor_egl->current_context);
+
+	if (glamor_egl->glamor_context != glamor_egl->current_context) {
+		eglMakeCurrent(glamor_egl->display, EGL_NO_SURFACE,
+			       EGL_NO_SURFACE, EGL_NO_CONTEXT);
+		if (!eglMakeCurrent(glamor_egl->display,
+				    EGL_NO_SURFACE, EGL_NO_SURFACE,
+				    glamor_egl->context)) {
+			FatalError("Failed to make EGL context current\n");
+		}
+	}
+}
+
+_X_EXPORT void
+glamor_egl_restore_context(ScreenPtr screen)
+{
+	ScrnInfoPtr scrn = xf86ScreenToScrn(screen);
+	struct glamor_egl_screen_private *glamor_egl =
+	    glamor_egl_get_screen_private(scrn);
+
+	if (--glamor_egl->gl_context_depth)
+		return;
+
+	if (glamor_egl->current_context &&
+	    glamor_egl->glamor_context != glamor_egl->current_context)
+		SET_CURRENT_CONTEXT(glamor_egl->current_context);
+}
+#else
+#define glamor_egl_make_current(x)
+#define glamor_egl_restore_context(s)
+#endif
+
+static EGLImageKHR
+_glamor_egl_create_image(struct glamor_egl_screen_private *glamor_egl,
+			 int width, int height, int stride, int name, int depth)
+{
+	EGLImageKHR image;
+	EGLint attribs[] = {
+		EGL_WIDTH, 0,
+		EGL_HEIGHT, 0,
+		EGL_DRM_BUFFER_STRIDE_MESA, 0,
+		EGL_DRM_BUFFER_FORMAT_MESA,
+		EGL_DRM_BUFFER_FORMAT_ARGB32_MESA,
+		EGL_DRM_BUFFER_USE_MESA,
+		EGL_DRM_BUFFER_USE_SHARE_MESA |
+		    EGL_DRM_BUFFER_USE_SCANOUT_MESA,
+		EGL_NONE
+	};
+	attribs[1] = width;
+	attribs[3] = height;
+	attribs[5] = stride;
+	if (depth != 32 && depth != 24)
+		return EGL_NO_IMAGE_KHR;
+	image = glamor_egl->egl_create_image_khr(glamor_egl->display,
+						 glamor_egl->context,
+						 EGL_DRM_BUFFER_MESA,
+						 (void *) (uintptr_t)name, attribs);
+	if (image == EGL_NO_IMAGE_KHR)
+		return EGL_NO_IMAGE_KHR;
+
+
+	return image;
+}
+
+static int
+glamor_get_flink_name(int fd, int handle, int *name)
+{
+	struct drm_gem_flink flink;
+	flink.handle = handle;
+	if (ioctl(fd, DRM_IOCTL_GEM_FLINK, &flink) < 0)
+		return FALSE;
+	*name = flink.name;
+	return TRUE;
+}
+
+static Bool
+glamor_create_texture_from_image(struct glamor_egl_screen_private
+				 *glamor_egl,
+				 EGLImageKHR image, GLuint * texture)
+{
+	glamor_egl->dispatch->glGenTextures(1, texture);
+	glamor_egl->dispatch->glBindTexture(GL_TEXTURE_2D, *texture);
+	glamor_egl->dispatch->glTexParameteri(GL_TEXTURE_2D,
+					      GL_TEXTURE_MIN_FILTER,
+					      GL_NEAREST);
+	glamor_egl->dispatch->glTexParameteri(GL_TEXTURE_2D,
+					      GL_TEXTURE_MAG_FILTER,
+					      GL_NEAREST);
+
+	(glamor_egl->egl_image_target_texture2d_oes) (GL_TEXTURE_2D,
+						      image);
+	glamor_egl->dispatch->glBindTexture(GL_TEXTURE_2D, 0);
+	return TRUE;
+}
+
+unsigned int
+glamor_egl_create_argb8888_based_texture(ScreenPtr screen,
+					 int w,
+					 int h)
+{
+	ScrnInfoPtr scrn = xf86ScreenToScrn(screen);
+	struct glamor_egl_screen_private *glamor_egl;
+	EGLImageKHR image;
+	GLuint texture;
+#ifdef GLAMOR_HAS_DRI3_SUPPORT
+	struct gbm_bo *bo;
+	EGLNativePixmapType native_pixmap;
+	glamor_egl = glamor_egl_get_screen_private(scrn);
+	bo = gbm_bo_create (glamor_egl->gbm, w, h, GBM_FORMAT_ARGB8888,
+				      GBM_BO_USE_RENDERING |
+				      GBM_BO_USE_SCANOUT);
+	if (!bo)
+		return 0;
+
+	/* If the following assignment raises an error or a warning
+	 * then that means EGLNativePixmapType is not struct gbm_bo *
+	 * on your platform: This code won't work and you should not
+	 * compile with dri3 support enabled */
+	native_pixmap = bo;
+
+	image = glamor_egl->egl_create_image_khr(glamor_egl->display,
+						 EGL_NO_CONTEXT,
+						 EGL_NATIVE_PIXMAP_KHR,
+						 native_pixmap, NULL);
+	gbm_bo_destroy(bo);
+	if (image == EGL_NO_IMAGE_KHR)
+		return 0;
+	glamor_create_texture_from_image(glamor_egl, image, &texture);
+	glamor_egl->egl_destroy_image_khr(glamor_egl->display, image);
+
+	return texture;
+#else
+	return 0; /* this path should never happen */
+#endif
+}
+
+Bool
+glamor_egl_create_textured_screen(ScreenPtr screen, int handle, int stride)
+{
+	ScrnInfoPtr scrn = xf86ScreenToScrn(screen);
+	struct glamor_egl_screen_private *glamor_egl;
+	PixmapPtr	screen_pixmap;
+
+	glamor_egl = glamor_egl_get_screen_private(scrn);
+	screen_pixmap = screen->GetScreenPixmap(screen);
+
+	if (!glamor_egl_create_textured_pixmap(screen_pixmap, handle, stride)) {
+		xf86DrvMsg(scrn->scrnIndex, X_ERROR, "Failed to create textured screen.");
+		return FALSE;
+	}
+
+	glamor_egl->front_image = dixLookupPrivate(&screen_pixmap->devPrivates,
+						    glamor_egl_pixmap_private_key);
+	glamor_set_screen_pixmap(screen_pixmap, glamor_egl->back_pixmap);
+	return TRUE;
+}
+
+Bool
+glamor_egl_create_textured_screen_ext(ScreenPtr screen,
+				      int handle,
+				      int stride,
+				      PixmapPtr *back_pixmap)
+{
+	ScrnInfoPtr scrn = xf86ScreenToScrn(screen);
+	struct glamor_egl_screen_private *glamor_egl;
+
+	glamor_egl = glamor_egl_get_screen_private(scrn);
+
+	glamor_egl->back_pixmap = back_pixmap;
+	if (!glamor_egl_create_textured_screen(screen, handle, stride))
+		return FALSE;
+	return TRUE;
+}
+
+static Bool
+glamor_egl_check_has_gem(int fd)
+{
+	struct drm_gem_flink flink;
+	flink.handle = 0;
+
+	ioctl(fd, DRM_IOCTL_GEM_FLINK, &flink);
+	if (errno == ENOENT || errno == EINVAL)
+		return TRUE;
+	return FALSE;
+}
+
+Bool
+glamor_egl_create_textured_pixmap(PixmapPtr pixmap, int handle, int stride)
+{
+	ScreenPtr screen = pixmap->drawable.pScreen;
+	ScrnInfoPtr scrn = xf86ScreenToScrn(screen);
+	struct glamor_egl_screen_private *glamor_egl;
+	EGLImageKHR image;
+	GLuint texture;
+	int name;
+	Bool ret = FALSE;
+
+	glamor_egl = glamor_egl_get_screen_private(scrn);
+
+	glamor_egl_make_current(screen);
+	if (glamor_egl->has_gem) {
+		if (!glamor_get_flink_name(glamor_egl->fd, handle, &name)) {
+			xf86DrvMsg(scrn->scrnIndex, X_ERROR,
+				   "Couldn't flink pixmap handle\n");
+			glamor_set_pixmap_type(pixmap, GLAMOR_DRM_ONLY);
+			assert(0);
+			return FALSE;
+		}
+	} else
+		name = handle;
+
+	image = _glamor_egl_create_image(glamor_egl,
+					 pixmap->drawable.width,
+					 pixmap->drawable.height,
+					 ((stride * 8 + 7) / pixmap->drawable.bitsPerPixel),
+					 name,
+					 pixmap->drawable.depth);
+	if (image == EGL_NO_IMAGE_KHR) {
+		glamor_set_pixmap_type(pixmap, GLAMOR_DRM_ONLY);
+		goto done;
+	}
+	glamor_create_texture_from_image(glamor_egl, image, &texture);
+	glamor_set_pixmap_type(pixmap, GLAMOR_TEXTURE_DRM);
+	glamor_set_pixmap_texture(pixmap, texture);
+	dixSetPrivate(&pixmap->devPrivates, glamor_egl_pixmap_private_key,
+		      image);
+	ret = TRUE;
+
+done:
+	glamor_egl_restore_context(screen);
+	return ret;
+}
+
+Bool
+glamor_egl_create_textured_pixmap_from_gbm_bo(PixmapPtr pixmap, void *bo)
+{
+	ScreenPtr screen = pixmap->drawable.pScreen;
+	ScrnInfoPtr scrn = xf86ScreenToScrn(screen);
+	struct glamor_egl_screen_private *glamor_egl;
+	EGLImageKHR image;
+	GLuint texture;
+	Bool ret = FALSE;
+
+	glamor_egl = glamor_egl_get_screen_private(scrn);
+
+	glamor_egl_make_current(screen);
+
+	image = glamor_egl->egl_create_image_khr(glamor_egl->display,
+						 glamor_egl->context,
+						 EGL_NATIVE_PIXMAP_KHR,
+						 bo, NULL);
+	if (image == EGL_NO_IMAGE_KHR) {
+		glamor_set_pixmap_type(pixmap, GLAMOR_DRM_ONLY);
+		goto done;
+	}
+	glamor_create_texture_from_image(glamor_egl, image, &texture);
+	glamor_set_pixmap_type(pixmap, GLAMOR_TEXTURE_DRM);
+	glamor_set_pixmap_texture(pixmap, texture);
+	dixSetPrivate(&pixmap->devPrivates, glamor_egl_pixmap_private_key,
+		      image);
+	ret = TRUE;
+
+done:
+	glamor_egl_restore_context(screen);
+	return ret;
+}
+
+#ifdef GLAMOR_HAS_DRI3_SUPPORT
+int glamor_get_fd_from_bo (int gbm_fd, struct gbm_bo *bo, int *fd);
+void glamor_get_name_from_bo (int gbm_fd, struct gbm_bo *bo, int *name);
+int
+glamor_get_fd_from_bo (int gbm_fd, struct gbm_bo *bo, int *fd)
+{
+	union gbm_bo_handle handle;
+	struct drm_prime_handle args;
+
+	handle = gbm_bo_get_handle(bo);
+	args.handle = handle.u32;
+	args.flags = DRM_CLOEXEC;
+	if (ioctl (gbm_fd, DRM_IOCTL_PRIME_HANDLE_TO_FD, &args))
+		return FALSE;
+	*fd = args.fd;
+	return TRUE;
+}
+
+void
+glamor_get_name_from_bo (int gbm_fd, struct gbm_bo *bo, int *name)
+{
+	union gbm_bo_handle handle;
+
+	handle = gbm_bo_get_handle(bo);
+	if (!glamor_get_flink_name(gbm_fd, handle.u32, name))
+		*name = -1;
+}
+#endif
+
+int glamor_egl_dri3_fd_name_from_tex (ScreenPtr screen,
+				      PixmapPtr pixmap,
+				      unsigned int tex,
+				      Bool want_name,
+				      CARD16 *stride,
+				      CARD32 *size)
+{
+#ifdef GLAMOR_HAS_DRI3_SUPPORT
+	ScrnInfoPtr scrn = xf86ScreenToScrn(screen);
+	struct glamor_egl_screen_private *glamor_egl;
+	EGLImageKHR image;
+	struct gbm_bo* bo;
+	int fd = -1;
+
+	EGLint attribs[] = {
+		EGL_IMAGE_PRESERVED_KHR, EGL_TRUE,
+		EGL_GL_TEXTURE_LEVEL_KHR, 0,
+		EGL_NONE
+	};
+
+	glamor_egl = glamor_egl_get_screen_private(scrn);
+
+	glamor_egl_make_current(screen);
+
+	image = dixLookupPrivate(&pixmap->devPrivates,
+				 glamor_egl_pixmap_private_key);
+
+	if (image == EGL_NO_IMAGE_KHR || image == NULL)
+	{
+		image = glamor_egl->egl_create_image_khr(glamor_egl->display,
+							 glamor_egl->context,
+							 EGL_GL_TEXTURE_2D_KHR,
+							 (EGLClientBuffer)(uintptr_t)tex, attribs);
+		if (image == EGL_NO_IMAGE_KHR)
+			goto failure;
+
+		dixSetPrivate(&pixmap->devPrivates,
+			      glamor_egl_pixmap_private_key,
+			      image);
+		glamor_set_pixmap_type(pixmap, GLAMOR_TEXTURE_DRM);
+	}
+
+	bo = gbm_bo_import(glamor_egl->gbm, GBM_BO_IMPORT_EGL_IMAGE, image, 0);
+	if (!bo)
+		goto failure;
+
+	pixmap->devKind = gbm_bo_get_stride(bo);
+
+	if (want_name)
+	{
+		if (glamor_egl->has_gem)
+			glamor_get_name_from_bo(glamor_egl->fd, bo, &fd);
+	}
+	else
+	{
+		if (glamor_get_fd_from_bo(glamor_egl->fd, bo, &fd))
+		{
+			*stride = pixmap->devKind;
+			*size = pixmap->devKind * gbm_bo_get_height(bo);
+		}
+	}
+
+	gbm_bo_destroy(bo);
+failure:
+	glamor_egl_restore_context(screen);
+	return fd;
+#else
+	return -1;
+#endif
+}
+
+PixmapPtr glamor_egl_dri3_pixmap_from_fd (ScreenPtr screen,
+					  int fd,
+					  CARD16 width,
+					  CARD16 height,
+					  CARD16 stride,
+					  CARD8 depth,
+					  CARD8 bpp)
+{
+#ifdef GLAMOR_HAS_DRI3_SUPPORT
+	ScrnInfoPtr scrn = xf86ScreenToScrn(screen);
+	struct glamor_egl_screen_private *glamor_egl;
+	struct gbm_bo* bo;
+	EGLImageKHR image;
+	PixmapPtr pixmap;
+	Bool ret = FALSE;
+	EGLint attribs[] = {
+		EGL_WIDTH, 0,
+		EGL_HEIGHT, 0,
+		EGL_LINUX_DRM_FOURCC_EXT, DRM_FORMAT_ARGB8888,
+		EGL_DMA_BUF_PLANE0_FD_EXT, 0,
+		EGL_DMA_BUF_PLANE0_OFFSET_EXT, 0,
+		EGL_DMA_BUF_PLANE0_PITCH_EXT, 0,
+		EGL_NONE
+	};
+
+	glamor_egl = glamor_egl_get_screen_private(scrn);
+
+	if (!glamor_egl->dri3_capable)
+		return NULL;
+
+	if (bpp != 32 || !(depth == 24 || depth == 32) || width == 0 || height == 0)
+		return NULL;
+
+	attribs[1] = width;
+	attribs[3] = height;
+	attribs[7] = fd;
+	attribs[11] = stride;
+	image = glamor_egl->egl_create_image_khr(glamor_egl->display,
+						 EGL_NO_CONTEXT,
+						 EGL_LINUX_DMA_BUF_EXT,
+						 NULL, attribs);
+
+	if (image == EGL_NO_IMAGE_KHR)
+		return NULL;
+
+	/* EGL_EXT_image_dma_buf_import can impose restrictions on the
+	 * usage of the image. Use gbm_bo to bypass the limitations. */
+
+	bo = gbm_bo_import(glamor_egl->gbm, GBM_BO_IMPORT_EGL_IMAGE, image, 0);
+	glamor_egl->egl_destroy_image_khr(glamor_egl->display, image);
+
+	if (!bo)
+		return NULL;
+
+	pixmap = screen->CreatePixmap(screen, 0, 0, depth, 0);
+	screen->ModifyPixmapHeader (pixmap, width, height, 0, 0, stride, NULL);
+
+	ret = glamor_egl_create_textured_pixmap_from_gbm_bo(pixmap, bo);
+	gbm_bo_destroy(bo);
+
+	if (ret)
+		return pixmap;
+	else
+	{
+		screen->DestroyPixmap(pixmap);
+		return NULL;
+	}
+#else
+	return NULL;
+#endif
+}
+
+static void
+_glamor_egl_destroy_pixmap_image(PixmapPtr pixmap)
+{
+	ScrnInfoPtr scrn = xf86ScreenToScrn(pixmap->drawable.pScreen);
+	EGLImageKHR image;
+	struct glamor_egl_screen_private *glamor_egl =
+	    glamor_egl_get_screen_private(scrn);
+
+	image = dixLookupPrivate(&pixmap->devPrivates,
+				 glamor_egl_pixmap_private_key);
+	if (image != EGL_NO_IMAGE_KHR && image != NULL) {
+		/* Before destroy an image which was attached to
+		 * a texture. we must call glFlush to make sure the
+		 * operation on that texture has been done.*/
+		glamor_block_handler(pixmap->drawable.pScreen);
+		glamor_egl->egl_destroy_image_khr(glamor_egl->display, image);
+		dixSetPrivate(&pixmap->devPrivates, glamor_egl_pixmap_private_key, NULL);
+	}
+}
+
+_X_EXPORT void
+glamor_egl_exchange_buffers(PixmapPtr front, PixmapPtr back)
+{
+	ScrnInfoPtr scrn = xf86ScreenToScrn(front->drawable.pScreen);
+	struct glamor_egl_screen_private *glamor_egl =
+	    glamor_egl_get_screen_private(scrn);
+	EGLImageKHR old_front_image;
+	EGLImageKHR new_front_image;
+
+	glamor_pixmap_exchange_fbos(front, back);
+	new_front_image = dixLookupPrivate(&back->devPrivates, glamor_egl_pixmap_private_key);
+	old_front_image = dixLookupPrivate(&front->devPrivates, glamor_egl_pixmap_private_key);
+	dixSetPrivate(&front->devPrivates, glamor_egl_pixmap_private_key, new_front_image);
+	dixSetPrivate(&back->devPrivates, glamor_egl_pixmap_private_key, old_front_image);
+	glamor_set_pixmap_type(front, GLAMOR_TEXTURE_DRM);
+	glamor_set_pixmap_type(back, GLAMOR_TEXTURE_DRM);
+	glamor_egl->front_image = new_front_image;
+
+}
+
+void
+glamor_egl_destroy_textured_pixmap(PixmapPtr pixmap)
+{
+	if (pixmap->refcnt == 1)
+		_glamor_egl_destroy_pixmap_image(pixmap);
+	glamor_destroy_textured_pixmap(pixmap);
+}
+
+static Bool
+glamor_egl_close_screen(CLOSE_SCREEN_ARGS_DECL)
+{
+	ScrnInfoPtr scrn;
+	struct glamor_egl_screen_private *glamor_egl;
+	PixmapPtr screen_pixmap;
+	EGLImageKHR back_image;
+
+	scrn = xf86ScreenToScrn(screen);
+	glamor_egl = glamor_egl_get_screen_private(scrn);
+	screen_pixmap = screen->GetScreenPixmap(screen);
+
+	glamor_egl->egl_destroy_image_khr(glamor_egl->display, glamor_egl->front_image);
+	dixSetPrivate(&screen_pixmap->devPrivates, glamor_egl_pixmap_private_key, NULL);
+	glamor_egl->front_image = NULL;
+	if (glamor_egl->back_pixmap && *glamor_egl->back_pixmap) {
+		back_image = dixLookupPrivate(&(*glamor_egl->back_pixmap)->devPrivates,
+					       glamor_egl_pixmap_private_key);
+		if (back_image != NULL && back_image != EGL_NO_IMAGE_KHR) {
+			glamor_egl->egl_destroy_image_khr(glamor_egl->display, back_image);
+			dixSetPrivate(&(*glamor_egl->back_pixmap)->devPrivates,
+				      glamor_egl_pixmap_private_key, NULL);
+		}
+	}
+
+	screen->CloseScreen = glamor_egl->saved_close_screen;
+
+	return screen->CloseScreen(CLOSE_SCREEN_ARGS);
+}
+
+static Bool
+glamor_egl_has_extension(struct glamor_egl_screen_private *glamor_egl,
+			 const char *extension)
+{
+	const char *pext;
+	int ext_len;
+
+	ext_len = strlen(extension);
+	pext =
+	    (const char *) eglQueryString(glamor_egl->display,
+					  EGL_EXTENSIONS);
+	if (pext == NULL || extension == NULL)
+		return FALSE;
+	while ((pext = strstr(pext, extension)) != NULL) {
+		if (pext[ext_len] == ' ' || pext[ext_len] == '\0')
+			return TRUE;
+		pext += ext_len;
+	}
+	return FALSE;
+}
+
+void
+glamor_egl_screen_init(ScreenPtr screen)
+{
+	ScrnInfoPtr scrn = xf86ScreenToScrn(screen);
+	struct glamor_egl_screen_private *glamor_egl =
+	    glamor_egl_get_screen_private(scrn);
+
+	glamor_egl->saved_close_screen = screen->CloseScreen;
+	screen->CloseScreen = glamor_egl_close_screen;
+}
+
+static void
+glamor_egl_free_screen(FREE_SCREEN_ARGS_DECL)
+{
+	ScrnInfoPtr scrn;
+	struct glamor_egl_screen_private *glamor_egl;
+#ifndef XF86_SCRN_INTERFACE
+	scrn = xf86Screens[arg];
+#else
+	scrn = arg;
+#endif
+
+	glamor_egl = glamor_egl_get_screen_private(scrn);
+	if (glamor_egl != NULL) {
+
+		eglMakeCurrent(glamor_egl->display,
+			       EGL_NO_SURFACE, EGL_NO_SURFACE,
+			       EGL_NO_CONTEXT);
+#ifdef GLAMOR_HAS_GBM
+		if (glamor_egl->gbm)
+			gbm_device_destroy(glamor_egl->gbm);
+#endif
+		scrn->FreeScreen = glamor_egl->saved_free_screen;
+		free(glamor_egl);
+		scrn->FreeScreen(FREE_SCREEN_ARGS);
+	}
+}
+
+Bool
+glamor_egl_init(ScrnInfoPtr scrn, int fd)
+{
+	struct glamor_egl_screen_private *glamor_egl;
+	const char *version;
+	EGLint config_attribs[] = {
+#ifdef GLAMOR_GLES2
+		EGL_CONTEXT_CLIENT_VERSION, 2,
+#endif
+		EGL_NONE
+	};
+
+	glamor_identify(0);
+	glamor_egl = calloc(sizeof(*glamor_egl), 1);
+	if (glamor_egl == NULL)
+		return FALSE;
+	if (xf86GlamorEGLPrivateIndex == -1)
+		xf86GlamorEGLPrivateIndex =
+		    xf86AllocateScrnInfoPrivateIndex();
+
+	scrn->privates[xf86GlamorEGLPrivateIndex].ptr = glamor_egl;
+	glamor_egl->fd = fd;
+#ifdef GLAMOR_HAS_GBM
+	glamor_egl->gbm = gbm_create_device(glamor_egl->fd);
+	if (glamor_egl->gbm == NULL) {
+		ErrorF("couldn't get display device\n");
+		return FALSE;
+	}
+	glamor_egl->display = eglGetDisplay(glamor_egl->gbm);
+#else
+	glamor_egl->display = eglGetDisplay((EGLNativeDisplayType)(intptr_t)fd);
+#endif
+
+	glamor_egl->has_gem = glamor_egl_check_has_gem(fd);
+
+#ifndef GLAMOR_GLES2
+	eglBindAPI(EGL_OPENGL_API);
+#else
+	eglBindAPI(EGL_OPENGL_ES_API);
+#endif
+	if (!eglInitialize
+	    (glamor_egl->display, &glamor_egl->major, &glamor_egl->minor))
+	{
+		xf86DrvMsg(scrn->scrnIndex, X_ERROR,
+			   "eglInitialize() failed\n");
+		return FALSE;
+	}
+
+	version = eglQueryString(glamor_egl->display, EGL_VERSION);
+	xf86Msg(X_INFO, "%s: EGL version %s:\n", glamor_name, version);
+
+#define GLAMOR_CHECK_EGL_EXTENSION(EXT)  \
+	if (!glamor_egl_has_extension(glamor_egl, "EGL_" #EXT)) {  \
+		ErrorF("EGL_" #EXT " required.\n");  \
+		return FALSE;  \
+	}
+
+#define GLAMOR_CHECK_EGL_EXTENSIONS(EXT1, EXT2)	 \
+	if (!glamor_egl_has_extension(glamor_egl, "EGL_" #EXT1) &&  \
+	    !glamor_egl_has_extension(glamor_egl, "EGL_" #EXT2)) {  \
+		ErrorF("EGL_" #EXT1 " or EGL_" #EXT2 " required.\n");  \
+		return FALSE;  \
+	}
+
+	GLAMOR_CHECK_EGL_EXTENSION(MESA_drm_image);
+	GLAMOR_CHECK_EGL_EXTENSION(KHR_gl_renderbuffer_image);
+#ifdef GLAMOR_GLES2
+	GLAMOR_CHECK_EGL_EXTENSIONS(KHR_surfaceless_context, KHR_surfaceless_gles2);
+#else
+	GLAMOR_CHECK_EGL_EXTENSIONS(KHR_surfaceless_context, KHR_surfaceless_opengl);
+#endif
+
+#ifdef GLAMOR_HAS_DRI3_SUPPORT
+	if (glamor_egl_has_extension(glamor_egl, "EGL_KHR_gl_texture_2D_image") &&
+	    glamor_egl_has_extension(glamor_egl, "EGL_EXT_image_dma_buf_import") )
+	    glamor_egl->dri3_capable = TRUE;
+#endif
+	glamor_egl->egl_create_image_khr = (PFNEGLCREATEIMAGEKHRPROC)
+	    eglGetProcAddress("eglCreateImageKHR");
+
+	glamor_egl->egl_destroy_image_khr = (PFNEGLDESTROYIMAGEKHRPROC)
+	    eglGetProcAddress("eglDestroyImageKHR");
+
+	glamor_egl->egl_image_target_texture2d_oes =
+	    (PFNGLEGLIMAGETARGETTEXTURE2DOESPROC)
+	    eglGetProcAddress("glEGLImageTargetTexture2DOES");
+
+	if (!glamor_egl->egl_create_image_khr
+	    || !glamor_egl->egl_image_target_texture2d_oes) {
+		xf86DrvMsg(scrn->scrnIndex, X_ERROR,
+			   "eglGetProcAddress() failed\n");
+		return FALSE;
+	}
+
+	glamor_egl->context = eglCreateContext(glamor_egl->display,
+					       NULL, EGL_NO_CONTEXT,
+					       config_attribs);
+	if (glamor_egl->context == EGL_NO_CONTEXT) {
+		xf86DrvMsg(scrn->scrnIndex, X_ERROR,
+			   "Failed to create EGL context\n");
+		return FALSE;
+	}
+
+	if (!eglMakeCurrent(glamor_egl->display,
+			    EGL_NO_SURFACE, EGL_NO_SURFACE,
+			    glamor_egl->context)) {
+		xf86DrvMsg(scrn->scrnIndex, X_ERROR,
+			   "Failed to make EGL context current\n");
+		return FALSE;
+	}
+#ifdef GLX_USE_SHARED_DISPATCH
+	GET_CURRENT_CONTEXT(glamor_egl->glamor_context);
+#endif
+	glamor_egl->saved_free_screen = scrn->FreeScreen;
+	scrn->FreeScreen = glamor_egl_free_screen;
+#ifdef GLAMOR_GLES2
+	xf86DrvMsg(scrn->scrnIndex, X_INFO, "Using GLES2.\n");
+#ifdef GLX_USE_SHARED_DISPATCH
+	xf86DrvMsg(scrn->scrnIndex, X_WARNING, "Glamor is using GLES2 but GLX needs GL. "
+					       "Indirect GLX may not work correctly.\n");
+#endif
+#endif
+	return TRUE;
+}
+
+Bool
+glamor_egl_init_textured_pixmap(ScreenPtr screen)
+{
+	ScrnInfoPtr scrn = xf86ScreenToScrn(screen);
+	struct glamor_egl_screen_private *glamor_egl =
+	    glamor_egl_get_screen_private(scrn);
+	if (!dixRegisterPrivateKey
+	    (glamor_egl_pixmap_private_key, PRIVATE_PIXMAP, 0)) {
+		LogMessage(X_WARNING,
+			   "glamor%d: Failed to allocate egl pixmap private\n",
+			   screen->myNum);
+		return FALSE;
+	}
+	if (glamor_egl->dri3_capable)
+		glamor_enable_dri3(screen);
+	return TRUE;
+}
+
+Bool
+glamor_gl_dispatch_init(ScreenPtr screen,
+			struct glamor_gl_dispatch *dispatch,
+			int gl_version)
+{
+	ScrnInfoPtr scrn = xf86ScreenToScrn(screen);
+	struct glamor_egl_screen_private *glamor_egl =
+	    glamor_egl_get_screen_private(scrn);
+	if (!glamor_gl_dispatch_init_impl
+	    (dispatch, gl_version, (get_proc_address_t)eglGetProcAddress))
+		return FALSE;
+	glamor_egl->dispatch = dispatch;
+	return TRUE;
+}
diff --git a/glamor/glamor_eglmodule.c b/glamor/glamor_eglmodule.c
new file mode 100644
index 000000000..9a0dec9f2
--- /dev/null
+++ b/glamor/glamor_eglmodule.c
@@ -0,0 +1,52 @@
+/*
+ * Copyright (C) 1998 The XFree86 Project, Inc.  All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
+ * XFREE86 PROJECT BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Except as contained in this notice, the name of the XFree86 Project shall
+ * not be used in advertising or otherwise to promote the sale, use or other
+ * dealings in this Software without prior written authorization from the
+ * XFree86 Project.
+ *
+ * Authors:
+ *    Zhigang Gong <zhigang.gong@gmail.com>
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <xorg-server.h>
+#define GLAMOR_FOR_XORG
+#include <xf86Module.h>
+#include "glamor.h"
+
+static XF86ModuleVersionInfo VersRec = {
+	GLAMOR_EGL_MODULE_NAME,
+	MODULEVENDORSTRING,
+	MODINFOSTRING1,
+	MODINFOSTRING2,
+	XORG_VERSION_CURRENT,
+	PACKAGE_VERSION_MAJOR, PACKAGE_VERSION_MINOR, PACKAGE_VERSION_PATCHLEVEL,
+	ABI_CLASS_ANSIC,	/* Only need the ansic layer */
+	ABI_ANSIC_VERSION,
+	MOD_CLASS_NONE,
+	{0, 0, 0, 0}		/* signature, to be patched into the file by a tool */
+};
+
+_X_EXPORT XF86ModuleData glamoreglModuleData = { &VersRec, NULL, NULL };
diff --git a/glamor/glamor_fbo.c b/glamor/glamor_fbo.c
new file mode 100644
index 000000000..d1b087ebe
--- /dev/null
+++ b/glamor/glamor_fbo.c
@@ -0,0 +1,590 @@
+/*
+ * Copyright © 2009 Intel Corporation
+ * Copyright © 1998 Keith Packard
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ *
+ * Authors:
+ *    Zhigang Gong <zhigang.gong@gmail.com>
+ *
+ */
+
+#include <stdlib.h>
+
+#include "glamor_priv.h"
+
+#define GLAMOR_CACHE_EXPIRE_MAX 100
+
+#define GLAMOR_CACHE_DEFAULT    0
+#define GLAMOR_CACHE_EXACT_SIZE 1
+
+//#define NO_FBO_CACHE 1
+#define FBO_CACHE_THRESHOLD  (256*1024*1024)
+
+/* Loop from the tail to the head. */
+#define xorg_list_for_each_entry_reverse(pos, head, member)             \
+    for (pos = __container_of((head)->prev, pos, member);               \
+         &pos->member != (head);                                        \
+         pos = __container_of(pos->member.prev, pos, member))
+
+
+#define xorg_list_for_each_entry_safe_reverse(pos, tmp, head, member)   \
+    for (pos = __container_of((head)->prev, pos, member),               \
+         tmp = __container_of(pos->member.prev, pos, member);           \
+         &pos->member != (head);                                        \
+         pos = tmp, tmp = __container_of(pos->member.prev, tmp, member))
+
+inline static int cache_wbucket(int size)
+{
+	int order = __fls(size / 32);
+	if (order >= CACHE_BUCKET_WCOUNT)
+		order = CACHE_BUCKET_WCOUNT - 1;
+	return order;
+}
+
+inline static int cache_hbucket(int size)
+{
+	int order = __fls(size / 32);
+	if (order >= CACHE_BUCKET_HCOUNT)
+		order = CACHE_BUCKET_HCOUNT - 1;
+	return order;
+}
+
+static glamor_pixmap_fbo *
+glamor_pixmap_fbo_cache_get(glamor_screen_private *glamor_priv,
+			    int w, int h, GLenum format, int flag)
+{
+	struct xorg_list *cache;
+	glamor_pixmap_fbo *fbo_entry, *ret_fbo = NULL;
+	int n_format;
+#ifdef NO_FBO_CACHE
+	return NULL;
+#else
+	n_format = cache_format(format);
+	if (n_format == -1)
+		return NULL;
+	cache = &glamor_priv->fbo_cache[n_format]
+				       [cache_wbucket(w)]
+				       [cache_hbucket(h)];
+	if (!(flag & GLAMOR_CACHE_EXACT_SIZE)) {
+		xorg_list_for_each_entry(fbo_entry, cache, list) {
+			if (fbo_entry->width >= w && fbo_entry->height >= h) {
+
+				DEBUGF("Request w %d h %d format %x \n", w, h, format);
+				DEBUGF("got cache entry %p w %d h %d fbo %d tex %d format %x\n",
+					fbo_entry, fbo_entry->width, fbo_entry->height,
+					fbo_entry->fb, fbo_entry->tex);
+				xorg_list_del(&fbo_entry->list);
+				ret_fbo = fbo_entry;
+				break;
+			}
+		}
+	}
+	else {
+		xorg_list_for_each_entry(fbo_entry, cache, list) {
+			if (fbo_entry->width == w && fbo_entry->height == h) {
+
+				DEBUGF("Request w %d h %d format %x \n", w, h, format);
+				DEBUGF("got cache entry %p w %d h %d fbo %d tex %d format %x\n",
+					fbo_entry, fbo_entry->width, fbo_entry->height,
+					fbo_entry->fb, fbo_entry->tex, fbo_entry->format);
+				assert(format == fbo_entry->format);
+				xorg_list_del(&fbo_entry->list);
+				ret_fbo = fbo_entry;
+				break;
+			}
+		}
+	}
+
+	if (ret_fbo)
+		glamor_priv->fbo_cache_watermark -= ret_fbo->width * ret_fbo->height;
+
+	assert(glamor_priv->fbo_cache_watermark >= 0);
+
+	return ret_fbo;
+#endif
+}
+
+void
+glamor_purge_fbo(glamor_pixmap_fbo *fbo)
+{
+	glamor_gl_dispatch *dispatch = glamor_get_dispatch(fbo->glamor_priv);
+	if (fbo->fb)
+		dispatch->glDeleteFramebuffers(1, &fbo->fb);
+	if (fbo->tex)
+		dispatch->glDeleteTextures(1, &fbo->tex);
+	if (fbo->pbo)
+		dispatch->glDeleteBuffers(1, &fbo->pbo);
+	glamor_put_dispatch(fbo->glamor_priv);
+
+	free(fbo);
+}
+
+static void
+glamor_pixmap_fbo_cache_put(glamor_pixmap_fbo *fbo)
+{
+	struct xorg_list *cache;
+	int n_format;
+
+#ifdef NO_FBO_CACHE
+	glamor_purge_fbo(fbo);
+	return;
+#else
+	n_format = cache_format(fbo->format);
+
+	if (fbo->fb == 0 || n_format == -1
+	   || fbo->glamor_priv->fbo_cache_watermark >= FBO_CACHE_THRESHOLD) {
+		fbo->glamor_priv->tick += GLAMOR_CACHE_EXPIRE_MAX;
+		glamor_fbo_expire(fbo->glamor_priv);
+		glamor_purge_fbo(fbo);
+		return;
+	}
+
+	cache = &fbo->glamor_priv->fbo_cache[n_format]
+					    [cache_wbucket(fbo->width)]
+					    [cache_hbucket(fbo->height)];
+	DEBUGF("Put cache entry %p to cache %p w %d h %d format %x fbo %d tex %d \n", fbo, cache,
+		fbo->width, fbo->height, fbo->format, fbo->fb, fbo->tex);
+
+	fbo->glamor_priv->fbo_cache_watermark += fbo->width * fbo->height;
+	xorg_list_add(&fbo->list, cache);
+	fbo->expire = fbo->glamor_priv->tick + GLAMOR_CACHE_EXPIRE_MAX;
+#endif
+}
+
+static void
+glamor_pixmap_ensure_fb(glamor_pixmap_fbo *fbo)
+{
+	glamor_gl_dispatch *dispatch;
+	int status;
+
+	dispatch = glamor_get_dispatch(fbo->glamor_priv);
+
+	if (fbo->fb == 0)
+		dispatch->glGenFramebuffers(1, &fbo->fb);
+	assert(fbo->tex != 0);
+	dispatch->glBindFramebuffer(GL_FRAMEBUFFER, fbo->fb);
+	dispatch->glFramebufferTexture2D(GL_FRAMEBUFFER,
+					 GL_COLOR_ATTACHMENT0,
+					 GL_TEXTURE_2D, fbo->tex,
+					 0);
+	status = dispatch->glCheckFramebufferStatus(GL_FRAMEBUFFER);
+	if (status != GL_FRAMEBUFFER_COMPLETE) {
+		const char *str;
+		switch (status) {
+		case GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT:
+			str = "incomplete attachment";
+			break;
+		case GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT:
+			str = "incomplete/missing attachment";
+			break;
+		case GL_FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER:
+			str = "incomplete draw buffer";
+			break;
+		case GL_FRAMEBUFFER_INCOMPLETE_READ_BUFFER:
+			str = "incomplete read buffer";
+			break;
+		case GL_FRAMEBUFFER_UNSUPPORTED:
+			str = "unsupported";
+			break;
+		case GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE:
+			str = "incomplete multiple";
+			break;
+		default:
+			str = "unknown error";
+			break;
+		}
+
+		FatalError("destination is framebuffer incomplete: %s [%x]\n",
+			   str, status);
+	}
+	glamor_put_dispatch(fbo->glamor_priv);
+}
+
+glamor_pixmap_fbo *
+glamor_create_fbo_from_tex(glamor_screen_private *glamor_priv,
+		  int w, int h, GLenum format, GLint tex, int flag)
+{
+	glamor_pixmap_fbo *fbo;
+
+	fbo = calloc(1, sizeof(*fbo));
+	if (fbo == NULL)
+		return NULL;
+
+	xorg_list_init(&fbo->list);
+
+	fbo->tex = tex;
+	fbo->width = w;
+	fbo->height = h;
+	fbo->format = format;
+	fbo->glamor_priv = glamor_priv;
+
+	if (flag == GLAMOR_CREATE_PIXMAP_MAP) {
+		glamor_gl_dispatch *dispatch;
+		dispatch = glamor_get_dispatch(glamor_priv);
+		dispatch->glGenBuffers(1, &fbo->pbo);
+		glamor_put_dispatch(glamor_priv);
+		goto done;
+	}
+
+	if (flag != GLAMOR_CREATE_FBO_NO_FBO)
+		glamor_pixmap_ensure_fb(fbo);
+
+done:
+	return fbo;
+}
+
+
+void
+glamor_fbo_expire(glamor_screen_private *glamor_priv)
+{
+	struct xorg_list *cache;
+	glamor_pixmap_fbo *fbo_entry, *tmp;
+	int i,j,k;
+
+	for(i = 0; i < CACHE_FORMAT_COUNT; i++)
+		for(j = 0; j < CACHE_BUCKET_WCOUNT; j++)
+			for(k = 0; k < CACHE_BUCKET_HCOUNT; k++) {
+				cache = &glamor_priv->fbo_cache[i][j][k];
+				xorg_list_for_each_entry_safe_reverse(fbo_entry, tmp, cache, list) {
+					if (GLAMOR_TICK_AFTER(fbo_entry->expire, glamor_priv->tick)) {
+						break;
+					}
+
+					glamor_priv->fbo_cache_watermark -= fbo_entry->width * fbo_entry->height;
+					xorg_list_del(&fbo_entry->list);
+					DEBUGF("cache %p fbo %p expired %d current %d \n", cache, fbo_entry,
+						fbo_entry->expire, glamor_priv->tick);
+					glamor_purge_fbo(fbo_entry);
+				}
+			}
+
+}
+
+void
+glamor_init_pixmap_fbo(ScreenPtr screen)
+{
+	glamor_screen_private *glamor_priv;
+	int i,j,k;
+
+	glamor_priv = glamor_get_screen_private(screen);
+	for(i = 0; i < CACHE_FORMAT_COUNT; i++)
+		for(j = 0; j < CACHE_BUCKET_WCOUNT; j++)
+			for(k = 0; k < CACHE_BUCKET_HCOUNT; k++)
+			{
+				xorg_list_init(&glamor_priv->fbo_cache[i][j][k]);
+			}
+	glamor_priv->fbo_cache_watermark = 0;
+}
+
+void
+glamor_fini_pixmap_fbo(ScreenPtr screen)
+{
+	struct xorg_list *cache;
+	glamor_screen_private *glamor_priv;
+	glamor_pixmap_fbo *fbo_entry, *tmp;
+	int i,j,k;
+
+	glamor_priv = glamor_get_screen_private(screen);
+	for(i = 0; i < CACHE_FORMAT_COUNT; i++)
+		for(j = 0; j < CACHE_BUCKET_WCOUNT; j++)
+			for(k = 0; k < CACHE_BUCKET_HCOUNT; k++)
+			{
+				cache = &glamor_priv->fbo_cache[i][j][k];
+				xorg_list_for_each_entry_safe_reverse(fbo_entry, tmp, cache, list) {
+					xorg_list_del(&fbo_entry->list);
+					glamor_purge_fbo(fbo_entry);
+				}
+			}
+}
+
+void
+glamor_destroy_fbo(glamor_pixmap_fbo *fbo)
+{
+	xorg_list_del(&fbo->list);
+	glamor_pixmap_fbo_cache_put(fbo);
+
+}
+
+static int
+_glamor_create_tex(glamor_screen_private *glamor_priv,
+		   int w, int h, GLenum format)
+{
+	glamor_gl_dispatch *dispatch;
+	unsigned int tex = 0;
+
+	/* With dri3, we want to allocate ARGB8888 pixmaps only.
+	 * Depending on the implementation, GL_RGBA might not
+	 * give us ARGB8888. We ask glamor_egl to use get
+	 * an ARGB8888 based texture for us. */
+	if (glamor_priv->dri3_enabled && format == GL_RGBA)
+	{
+		tex = glamor_egl_create_argb8888_based_texture(glamor_priv->screen,
+								w, h);
+	}
+	if (!tex)
+	{
+		dispatch = glamor_get_dispatch(glamor_priv);
+		dispatch->glGenTextures(1, &tex);
+		dispatch->glBindTexture(GL_TEXTURE_2D, tex);
+		dispatch->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER,
+					  GL_NEAREST);
+		dispatch->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER,
+					  GL_NEAREST);
+		dispatch->glTexImage2D(GL_TEXTURE_2D, 0, format, w, h, 0,
+				       format, GL_UNSIGNED_BYTE, NULL);
+		glamor_put_dispatch(glamor_priv);
+	}
+	return tex;
+}
+
+glamor_pixmap_fbo *
+glamor_create_fbo(glamor_screen_private *glamor_priv,
+		  int w, int h,
+		  GLenum format,
+		  int flag)
+{
+	glamor_pixmap_fbo *fbo;
+	GLint tex = 0;
+	int cache_flag;
+
+	if (!glamor_check_fbo_size(glamor_priv, w, h))
+		return NULL;
+
+	if (flag == GLAMOR_CREATE_FBO_NO_FBO)
+		goto new_fbo;
+
+	if (flag == GLAMOR_CREATE_PIXMAP_MAP)
+		goto no_tex;
+
+	if (flag == GLAMOR_CREATE_PIXMAP_FIXUP)
+		cache_flag = GLAMOR_CACHE_EXACT_SIZE;
+	else
+		cache_flag = 0;
+
+	fbo = glamor_pixmap_fbo_cache_get(glamor_priv, w, h,
+					  format, cache_flag);
+	if (fbo)
+		return fbo;
+new_fbo:
+	tex = _glamor_create_tex(glamor_priv, w, h, format);
+no_tex:
+	fbo = glamor_create_fbo_from_tex(glamor_priv, w, h, format, tex, flag);
+
+	return fbo;
+}
+
+static glamor_pixmap_fbo *
+_glamor_create_fbo_array(glamor_screen_private *glamor_priv,
+			 int w, int h, GLenum format, int flag,
+			 int block_w, int block_h,
+			 glamor_pixmap_private *pixmap_priv,
+			 int has_fbo)
+{
+	int block_wcnt;
+	int block_hcnt;
+	glamor_pixmap_fbo **fbo_array;
+	BoxPtr box_array;
+	int i,j;
+	glamor_pixmap_private_large_t *priv;
+
+	priv = &pixmap_priv->large;
+
+	block_wcnt = (w + block_w - 1) / block_w;
+	block_hcnt = (h + block_h - 1) / block_h;
+
+	box_array = calloc(block_wcnt * block_hcnt, sizeof(box_array[0]));
+	if (box_array == NULL)
+		return NULL;
+
+	fbo_array = calloc(block_wcnt * block_hcnt, sizeof(glamor_pixmap_fbo*));
+	if (fbo_array == NULL) {
+		free(box_array);
+		return FALSE;
+	}
+	for(i = 0; i < block_hcnt; i++)
+	{
+		int block_y1, block_y2;
+		int fbo_w, fbo_h;
+
+		block_y1 = i * block_h;
+		block_y2 = (block_y1 + block_h) > h ? h : (block_y1 + block_h);
+		fbo_h = block_y2 - block_y1;
+
+		for (j = 0; j < block_wcnt; j++)
+		{
+			box_array[i * block_wcnt + j].x1 = j * block_w;
+			box_array[i * block_wcnt + j].y1 = block_y1;
+			box_array[i * block_wcnt + j].x2 = (j + 1) * block_w > w ? w : (j + 1) * block_w;
+			box_array[i * block_wcnt + j].y2 = block_y2;
+			fbo_w = box_array[i * block_wcnt + j].x2 - box_array[i * block_wcnt + j].x1;
+			if (!has_fbo)
+				fbo_array[i * block_wcnt + j] = glamor_create_fbo(glamor_priv,
+										  fbo_w, fbo_h, format,
+										  GLAMOR_CREATE_PIXMAP_FIXUP);
+			else
+				fbo_array[i * block_wcnt + j] = priv->base.fbo;
+			if (fbo_array[i * block_wcnt + j] == NULL)
+				goto cleanup;
+		}
+	}
+
+	priv->box = box_array[0];
+	priv->box_array = box_array;
+	priv->fbo_array = fbo_array;
+	priv->block_wcnt = block_wcnt;
+	priv->block_hcnt = block_hcnt;
+	return fbo_array[0];
+
+cleanup:
+	for(i = 0; i < block_wcnt * block_hcnt; i++)
+		if ((fbo_array)[i])
+			glamor_destroy_fbo((fbo_array)[i]);
+	free(box_array);
+	free(fbo_array);
+	return NULL;
+}
+
+
+/* Create a fbo array to cover the w*h region, by using block_w*block_h
+ * block.*/
+glamor_pixmap_fbo *
+glamor_create_fbo_array(glamor_screen_private *glamor_priv,
+			int w, int h, GLenum format, int flag,
+			int block_w, int block_h,
+			glamor_pixmap_private *pixmap_priv)
+{
+	pixmap_priv->large.block_w = block_w;
+	pixmap_priv->large.block_h = block_h;
+	return _glamor_create_fbo_array(glamor_priv, w, h, format, flag,
+					block_w, block_h, pixmap_priv, 0);
+}
+
+glamor_pixmap_fbo *
+glamor_pixmap_detach_fbo(glamor_pixmap_private *pixmap_priv)
+{
+	glamor_pixmap_fbo *fbo;
+
+	if (pixmap_priv == NULL)
+		return NULL;
+
+	fbo = pixmap_priv->base.fbo;
+	if (fbo == NULL)
+		return NULL;
+
+	pixmap_priv->base.fbo = NULL;
+	return fbo;
+}
+
+/* The pixmap must not be attached to another fbo. */
+void
+glamor_pixmap_attach_fbo(PixmapPtr pixmap, glamor_pixmap_fbo *fbo)
+{
+	glamor_pixmap_private *pixmap_priv;
+
+	pixmap_priv = glamor_get_pixmap_private(pixmap);
+
+	if (pixmap_priv->base.fbo)
+		return;
+
+	pixmap_priv->base.fbo = fbo;
+
+	switch (pixmap_priv->type) {
+	case GLAMOR_TEXTURE_LARGE:
+	case GLAMOR_TEXTURE_ONLY:
+	case GLAMOR_TEXTURE_DRM:
+		pixmap_priv->base.gl_fbo = 1;
+		if (fbo->tex != 0)
+			pixmap_priv->base.gl_tex = 1;
+		else {
+			/* XXX For the Xephyr only, may be broken now.*/
+			pixmap_priv->base.gl_tex = 0;
+		}
+	case GLAMOR_MEMORY_MAP:
+		pixmap->devPrivate.ptr = NULL;
+		break;
+	default:
+		break;
+	}
+}
+
+void
+glamor_pixmap_destroy_fbo(glamor_pixmap_private *priv)
+{
+	glamor_pixmap_fbo *fbo;
+	if (priv->type == GLAMOR_TEXTURE_LARGE) {
+		int i;
+		glamor_pixmap_private_large_t *large = &priv->large;
+		for(i = 0; i < large->block_wcnt * large->block_hcnt; i++)
+			glamor_destroy_fbo(large->fbo_array[i]);
+		free(large->fbo_array);
+	} else {
+		fbo = glamor_pixmap_detach_fbo(priv);
+		if (fbo)
+			glamor_destroy_fbo(fbo);
+	}
+
+	free(priv);
+}
+
+Bool
+glamor_pixmap_ensure_fbo(PixmapPtr pixmap, GLenum format, int flag)
+{
+	glamor_screen_private *glamor_priv;
+	glamor_pixmap_private *pixmap_priv;
+	glamor_pixmap_fbo *fbo;
+
+	glamor_priv = glamor_get_screen_private(pixmap->drawable.pScreen);
+	pixmap_priv = glamor_get_pixmap_private(pixmap);
+	if (pixmap_priv->base.fbo == NULL) {
+
+		fbo = glamor_create_fbo(glamor_priv, pixmap->drawable.width,
+					pixmap->drawable.height,
+					format,
+					flag);
+		if (fbo == NULL)
+			return FALSE;
+
+		glamor_pixmap_attach_fbo(pixmap, fbo);
+	} else {
+		/* We do have a fbo, but it may lack of fb or tex. */
+		if (!pixmap_priv->base.fbo->tex)
+			pixmap_priv->base.fbo->tex = _glamor_create_tex(glamor_priv, pixmap->drawable.width,
+								   pixmap->drawable.height, format);
+
+		if (flag != GLAMOR_CREATE_FBO_NO_FBO && pixmap_priv->base.fbo->fb == 0)
+			glamor_pixmap_ensure_fb(pixmap_priv->base.fbo);
+	}
+
+	return TRUE;
+}
+
+_X_EXPORT void
+glamor_pixmap_exchange_fbos(PixmapPtr front, PixmapPtr back)
+{
+	glamor_pixmap_private *front_priv, *back_priv;
+	glamor_pixmap_fbo *temp_fbo;
+
+	front_priv = glamor_get_pixmap_private(front);
+	back_priv = glamor_get_pixmap_private(back);
+	temp_fbo = front_priv->base.fbo;
+	front_priv->base.fbo = back_priv->base.fbo;
+	back_priv->base.fbo = temp_fbo;
+}
diff --git a/glamor/glamor_fill.c b/glamor/glamor_fill.c
new file mode 100644
index 000000000..fbc87392e
--- /dev/null
+++ b/glamor/glamor_fill.c
@@ -0,0 +1,364 @@
+/*
+ * Copyright © 2008 Intel Corporation
+ * Copyright © 1998 Keith Packard
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation, and that the name of Keith Packard not be used in
+ * advertising or publicity pertaining to distribution of the software without
+ * specific, written prior permission.  Keith Packard makes no
+ * representations about the suitability of this software for any purpose.  It
+ * is provided "as is" without express or implied warranty.
+ *
+ * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ *
+ * Authors:
+ *    Eric Anholt <eric@anholt.net>
+ *    Zhigang Gong <zhigang.gong@linux.intel.com>
+ */
+
+#include "glamor_priv.h"
+
+/** @file glamor_fillspans.c
+ *
+ * GC fill implementation, based loosely on fb_fill.c
+ */
+Bool
+glamor_fill(DrawablePtr drawable,
+	    GCPtr gc, int x, int y, int width, int height, Bool fallback)
+{
+	PixmapPtr dst_pixmap = glamor_get_drawable_pixmap(drawable);
+	int off_x, off_y;
+	PixmapPtr sub_pixmap = NULL;
+	glamor_access_t sub_pixmap_access;
+	DrawablePtr saved_drawable = NULL;
+	int saved_x = x, saved_y = y;
+
+	glamor_get_drawable_deltas(drawable, dst_pixmap, &off_x, &off_y);
+
+	switch (gc->fillStyle) {
+	case FillSolid:
+		if (!glamor_solid(dst_pixmap,
+				  x + off_x,
+				  y + off_y,
+				  width, height, gc->alu, gc->planemask,
+				  gc->fgPixel))
+			goto fail;
+		break;
+	case FillStippled:
+	case FillOpaqueStippled:
+		if (!glamor_stipple(dst_pixmap,
+				    gc->stipple,
+				    x + off_x,
+				    y + off_y,
+				    width,
+				    height,
+				    gc->alu,
+				    gc->planemask,
+				    gc->fgPixel,
+				    gc->bgPixel, gc->patOrg.x,
+				    gc->patOrg.y))
+			goto fail;
+		break;
+	case FillTiled:
+		if (!glamor_tile(dst_pixmap,
+				 gc->tile.pixmap,
+				 x + off_x,
+				 y + off_y,
+				 width,
+				 height,
+				 gc->alu,
+				 gc->planemask,
+				 x - drawable->x - gc->patOrg.x,
+				 y - drawable->y - gc->patOrg.y))
+			goto fail;
+		break;
+	}
+	return TRUE;
+
+      fail:
+	if (!fallback) {
+		if (glamor_ddx_fallback_check_pixmap(&dst_pixmap->drawable)
+		   && glamor_ddx_fallback_check_gc(gc))
+		return FALSE;
+	}
+	/* Is it possible to set the access as WO? */
+
+	sub_pixmap_access = GLAMOR_ACCESS_RW;
+
+	sub_pixmap = glamor_get_sub_pixmap(dst_pixmap, x + off_x,
+					   y + off_y, width, height,
+					   sub_pixmap_access);
+
+	if (sub_pixmap != NULL) {
+		if (gc->fillStyle != FillSolid) {
+			gc->patOrg.x += (drawable->x - x);
+			gc->patOrg.y += (drawable->y - y);
+		}
+		saved_drawable = drawable;
+		drawable = &sub_pixmap->drawable;
+		saved_x = x;
+		saved_y = y;
+		x = 0;
+		y = 0;
+	}
+	if (glamor_prepare_access(drawable, GLAMOR_ACCESS_RW)) {
+		if (glamor_prepare_access_gc(gc)) {
+			fbFill(drawable, gc, x, y, width, height);
+			glamor_finish_access_gc(gc);
+		}
+		glamor_finish_access(drawable, GLAMOR_ACCESS_RW);
+	}
+
+	if (sub_pixmap != NULL) {
+		if (gc->fillStyle != FillSolid) {
+			gc->patOrg.x -= (saved_drawable->x - saved_x);
+			gc->patOrg.y -= (saved_drawable->y - saved_y);
+		}
+
+		x = saved_x;
+		y = saved_y;
+
+		glamor_put_sub_pixmap(sub_pixmap, dst_pixmap,
+				      x + off_x, y + off_y,
+				      width, height, sub_pixmap_access);
+	}
+
+	return TRUE;
+}
+
+void
+glamor_init_solid_shader(ScreenPtr screen)
+{
+	glamor_screen_private *glamor_priv;
+	glamor_gl_dispatch *dispatch;
+	const char *solid_vs =
+	    "attribute vec4 v_position;"
+	    "void main()\n" "{\n" "       gl_Position = v_position;\n"
+	    "}\n";
+	const char *solid_fs =
+	    GLAMOR_DEFAULT_PRECISION "uniform vec4 color;\n"
+	    "void main()\n" "{\n" "	gl_FragColor = color;\n" "}\n";
+	GLint fs_prog, vs_prog;
+
+	glamor_priv = glamor_get_screen_private(screen);
+	dispatch =  glamor_get_dispatch(glamor_priv);
+	glamor_priv->solid_prog = dispatch->glCreateProgram();
+	vs_prog = glamor_compile_glsl_prog(dispatch, GL_VERTEX_SHADER, solid_vs);
+	fs_prog = glamor_compile_glsl_prog(dispatch, GL_FRAGMENT_SHADER,
+					   solid_fs);
+	dispatch->glAttachShader(glamor_priv->solid_prog, vs_prog);
+	dispatch->glAttachShader(glamor_priv->solid_prog, fs_prog);
+
+	dispatch->glBindAttribLocation(glamor_priv->solid_prog,
+				       GLAMOR_VERTEX_POS, "v_position");
+	glamor_link_glsl_prog(dispatch, glamor_priv->solid_prog);
+
+	glamor_priv->solid_color_uniform_location =
+	    dispatch->glGetUniformLocation(glamor_priv->solid_prog,
+					   "color");
+	glamor_put_dispatch(glamor_priv);
+}
+
+void
+glamor_fini_solid_shader(ScreenPtr screen)
+{
+	glamor_screen_private *glamor_priv;
+	glamor_gl_dispatch *dispatch;
+
+	glamor_priv = glamor_get_screen_private(screen);
+	dispatch = glamor_get_dispatch(glamor_priv);
+	dispatch->glDeleteProgram(glamor_priv->solid_prog);
+	glamor_put_dispatch(glamor_priv);
+}
+
+static void
+_glamor_solid_boxes(PixmapPtr pixmap, BoxPtr box, int nbox, float *color)
+{
+	ScreenPtr screen = pixmap->drawable.pScreen;
+	glamor_screen_private *glamor_priv =
+	    glamor_get_screen_private(screen);
+	glamor_pixmap_private *pixmap_priv =
+	    glamor_get_pixmap_private(pixmap);
+	glamor_gl_dispatch *dispatch;
+	GLfloat xscale, yscale;
+	float vertices[32];
+	float *pvertices = vertices;
+	int valid_nbox = ARRAY_SIZE(vertices);
+
+	glamor_set_destination_pixmap_priv_nc(pixmap_priv);
+
+	dispatch = glamor_get_dispatch(glamor_priv);
+	dispatch->glUseProgram(glamor_priv->solid_prog);
+
+	dispatch->glUniform4fv(glamor_priv->solid_color_uniform_location,
+			       1, color);
+
+	pixmap_priv_get_dest_scale(pixmap_priv, &xscale, &yscale);
+
+	if (unlikely(nbox*4*2 > ARRAY_SIZE(vertices))) {
+		int allocated_box;
+
+		if (nbox * 6 > GLAMOR_COMPOSITE_VBO_VERT_CNT) {
+			allocated_box = GLAMOR_COMPOSITE_VBO_VERT_CNT / 6;
+		} else
+			allocated_box = nbox;
+		pvertices = malloc(allocated_box * 4 * 2 * sizeof(float));
+		if (pvertices)
+			valid_nbox = allocated_box;
+		else {
+			pvertices = vertices;
+			valid_nbox = ARRAY_SIZE(vertices) / (4*2);
+		}
+	}
+
+	if (unlikely(nbox > 1))
+		dispatch->glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, glamor_priv->ebo);
+
+	dispatch->glVertexAttribPointer(GLAMOR_VERTEX_POS, 2, GL_FLOAT,
+					GL_FALSE, 2 * sizeof(float),
+					pvertices);
+	dispatch->glEnableVertexAttribArray(GLAMOR_VERTEX_POS);
+
+	while(nbox) {
+		int box_cnt, i;
+		float *valid_vertices;
+		valid_vertices = pvertices;
+		box_cnt = nbox > valid_nbox ? valid_nbox : nbox;
+		for (i = 0; i < box_cnt; i++) {
+			glamor_set_normalize_vcoords(pixmap_priv, xscale, yscale,
+						     box[i].x1, box[i].y1,
+						     box[i].x2, box[i].y2,
+						     glamor_priv->yInverted,
+						     valid_vertices);
+			valid_vertices += 4*2;
+		}
+		if (box_cnt == 1)
+			dispatch->glDrawArrays(GL_TRIANGLE_FAN, 0, box_cnt * 4);
+		else
+#ifndef GLAMOR_GLES2
+			dispatch->glDrawRangeElements(GL_TRIANGLES,
+						      0,
+						      box_cnt * 4,
+						      box_cnt * 6,
+						      GL_UNSIGNED_SHORT,
+						      NULL);
+#else
+			dispatch->glDrawElements(GL_TRIANGLES,
+						 box_cnt * 6,
+						 GL_UNSIGNED_SHORT,
+						 NULL);
+#endif
+		nbox -= box_cnt;
+		box += box_cnt;
+	}
+
+	if (pvertices != vertices)
+		free(pvertices);
+
+	dispatch->glDisableVertexAttribArray(GLAMOR_VERTEX_POS);
+	dispatch->glUseProgram(0);
+	glamor_put_dispatch(glamor_priv);
+	glamor_priv->state = RENDER_STATE;
+	glamor_priv->render_idle_cnt = 0;
+}
+
+Bool
+glamor_solid_boxes(PixmapPtr pixmap,
+		   BoxPtr box, int nbox,
+		   unsigned long fg_pixel)
+{
+	glamor_pixmap_private *pixmap_priv;
+	GLfloat color[4];
+
+	pixmap_priv = glamor_get_pixmap_private(pixmap);
+
+	if (!GLAMOR_PIXMAP_PRIV_HAS_FBO(pixmap_priv))
+		return FALSE;
+
+	glamor_get_rgba_from_pixel(fg_pixel,
+				   &color[0],
+				   &color[1],
+				   &color[2],
+				   &color[3], format_for_pixmap(pixmap));
+
+	if (pixmap_priv->type == GLAMOR_TEXTURE_LARGE) {
+		RegionRec region;
+		int n_region;
+		glamor_pixmap_clipped_regions *clipped_regions;
+		int i;
+
+		RegionInitBoxes(&region, box, nbox);
+		clipped_regions = glamor_compute_clipped_regions(pixmap_priv, &region, &n_region, 0, 0, 0);
+		for(i = 0; i < n_region; i++)
+		{
+			BoxPtr inner_box;
+			int inner_nbox;
+			SET_PIXMAP_FBO_CURRENT(pixmap_priv, clipped_regions[i].block_idx);
+
+			inner_box = RegionRects(clipped_regions[i].region);
+			inner_nbox = RegionNumRects(clipped_regions[i].region);
+			_glamor_solid_boxes(pixmap, inner_box, inner_nbox, color);
+			RegionDestroy(clipped_regions[i].region);
+		}
+		free(clipped_regions);
+		RegionUninit(&region);
+	} else
+		_glamor_solid_boxes(pixmap, box, nbox, color);
+
+	return TRUE;
+}
+
+Bool
+glamor_solid(PixmapPtr pixmap, int x, int y, int width, int height,
+	     unsigned char alu, unsigned long planemask,
+	     unsigned long fg_pixel)
+{
+	ScreenPtr screen = pixmap->drawable.pScreen;
+	glamor_screen_private *glamor_priv =
+	    glamor_get_screen_private(screen);
+	glamor_pixmap_private *pixmap_priv;
+	glamor_gl_dispatch *dispatch;
+	BoxRec box;
+
+	pixmap_priv = glamor_get_pixmap_private(pixmap);
+
+	if (!GLAMOR_PIXMAP_PRIV_HAS_FBO(pixmap_priv))
+		return FALSE;
+
+	if (!glamor_set_planemask(pixmap, planemask)) {
+		glamor_fallback
+		    ("Failedto set planemask  in glamor_solid.\n");
+		return FALSE;
+	}
+
+	dispatch = glamor_get_dispatch(glamor_priv);
+	if (!glamor_set_alu(dispatch, alu)) {
+		if (alu == GXclear)
+			fg_pixel = 0;
+		else {
+			glamor_fallback("unsupported alu %x\n", alu);
+			glamor_put_dispatch(glamor_priv);
+			return FALSE;
+		}
+	}
+	box.x1 = x;
+	box.y1 = y;
+	box.x2 = x + width;
+	box.y2 = y + height;
+	glamor_solid_boxes(pixmap, &box, 1, fg_pixel);
+
+	glamor_set_alu(dispatch, GXcopy);
+	glamor_put_dispatch(glamor_priv);
+
+	return TRUE;
+}
+
diff --git a/glamor/glamor_fillspans.c b/glamor/glamor_fillspans.c
new file mode 100644
index 000000000..35e881f61
--- /dev/null
+++ b/glamor/glamor_fillspans.c
@@ -0,0 +1,113 @@
+/*
+ * Copyright © 1998 Keith Packard
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation, and that the name of Keith Packard not be used in
+ * advertising or publicity pertaining to distribution of the software without
+ * specific, written prior permission.  Keith Packard makes no
+ * representations about the suitability of this software for any purpose.  It
+ * is provided "as is" without express or implied warranty.
+ *
+ * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/** @file glamor_fillspans.c
+ *
+ * FillSpans implementation, taken from fb_fillsp.c
+ */
+#include "glamor_priv.h"
+
+static Bool
+_glamor_fill_spans(DrawablePtr drawable,
+		  GCPtr gc,
+		  int n, DDXPointPtr points, int *widths, int sorted, Bool fallback)
+{
+	DDXPointPtr ppt;
+	int nbox;
+	BoxPtr pbox;
+	int x1, x2, y;
+	RegionPtr pClip = fbGetCompositeClip(gc);
+	Bool ret = FALSE;
+
+	if (gc->fillStyle != FillSolid && gc->fillStyle != FillTiled)
+		goto fail;
+
+	ppt = points;
+	while (n--) {
+		x1 = ppt->x;
+		y = ppt->y;
+		x2 = x1 + (int) *widths;
+		ppt++;
+		widths++;
+
+		nbox = REGION_NUM_RECTS(pClip);
+		pbox = REGION_RECTS(pClip);
+		while (nbox--) {
+			int real_x1 = x1, real_x2 = x2;
+
+			if (real_x1 < pbox->x1)
+				real_x1 = pbox->x1;
+
+			if (real_x2 > pbox->x2)
+				real_x2 = pbox->x2;
+
+			if (real_x2 > real_x1 && pbox->y1 <= y && pbox->y2 > y) {
+				if (!glamor_fill(drawable, gc, real_x1, y, 
+						 real_x2 - real_x1, 1, fallback))
+					goto fail;
+			}
+			pbox++;
+		}
+	}
+	ret = TRUE;
+	goto done;
+
+fail:
+	if (!fallback 
+	    && glamor_ddx_fallback_check_pixmap(drawable)
+	    && glamor_ddx_fallback_check_gc(gc)) {
+		goto done;
+	}
+	glamor_fallback("to %p (%c)\n", drawable,
+			glamor_get_drawable_location(drawable));
+	if (glamor_prepare_access(drawable, GLAMOR_ACCESS_RW)) {
+		if (glamor_prepare_access_gc(gc)) {
+			fbFillSpans(drawable, gc, n, points, widths,
+				    sorted);
+			glamor_finish_access_gc(gc);
+		}
+		glamor_finish_access(drawable, GLAMOR_ACCESS_RW);
+	}
+	ret = TRUE;
+
+done:
+	return ret;
+}
+
+
+void
+glamor_fill_spans(DrawablePtr drawable,
+		  GCPtr gc,
+		  int n, DDXPointPtr points, int *widths, int sorted)
+{
+	_glamor_fill_spans(drawable, gc, n, points, widths, sorted, TRUE);
+}
+
+Bool
+glamor_fill_spans_nf(DrawablePtr drawable,
+		     GCPtr gc,
+		     int n, DDXPointPtr points, int *widths, int sorted)
+{
+	return _glamor_fill_spans(drawable, gc, n, points, widths, sorted, FALSE);
+}
+
+
diff --git a/glamor/glamor_getimage.c b/glamor/glamor_getimage.c
new file mode 100644
index 000000000..5df576c45
--- /dev/null
+++ b/glamor/glamor_getimage.c
@@ -0,0 +1,101 @@
+/*
+ * Copyright © 2009 Intel Corporation
+ * Copyright © 1998 Keith Packard
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ *
+ * Authors:
+ *    Zhigang Gong <zhigang.gong@gmail.com>
+ *
+ */
+
+#include "glamor_priv.h"
+
+
+static Bool
+_glamor_get_image(DrawablePtr drawable, int x, int y, int w, int h,
+		  unsigned int format, unsigned long planeMask, char *d,
+		  Bool fallback)
+{
+	PixmapPtr pixmap, sub_pixmap;
+	struct glamor_pixmap_private *pixmap_priv;
+	int x_off, y_off;
+	int stride;
+	void *data;
+
+	pixmap = glamor_get_drawable_pixmap(drawable);
+	glamor_get_drawable_deltas(drawable, pixmap, &x_off, &y_off);
+
+	if (format != ZPixmap)
+		goto fall_back;
+	pixmap = glamor_get_drawable_pixmap(drawable);
+	glamor_get_drawable_deltas(drawable, pixmap, &x_off, &y_off);
+
+	if (!glamor_set_planemask(pixmap, planeMask)) {
+		glamor_fallback
+		    ("Failedto set planemask  in glamor_solid.\n");
+		goto fall_back;
+	}
+	pixmap_priv = glamor_get_pixmap_private(pixmap);
+
+
+	if (!GLAMOR_PIXMAP_PRIV_HAS_FBO(pixmap_priv))
+		goto fall_back;
+	stride = PixmapBytePad(w, drawable->depth);
+
+	x += drawable->x + x_off;
+	y += drawable->y + y_off;
+
+	data = glamor_download_sub_pixmap_to_cpu(pixmap, x, y, w, h, stride,
+						 d, 0, GLAMOR_ACCESS_RO);
+	if (data != NULL) {
+		assert(data == d);
+		return TRUE;
+	}
+fall_back:
+	sub_pixmap = glamor_get_sub_pixmap(pixmap, x + x_off + drawable->x,
+					   y + y_off + drawable->y, w, h,
+					   GLAMOR_ACCESS_RO);
+	if (sub_pixmap) {
+		fbGetImage(&sub_pixmap->drawable, 0, 0, w, h, format, planeMask, d);
+		glamor_put_sub_pixmap(sub_pixmap, pixmap,
+				      x + x_off + drawable->x,
+				      y + y_off + drawable->y,
+				      w, h, GLAMOR_ACCESS_RO);
+	} else
+		miGetImage(drawable, x, y, w, h, format, planeMask, d);
+
+	return TRUE;
+}
+
+void
+glamor_get_image(DrawablePtr pDrawable, int x, int y, int w, int h,
+		 unsigned int format, unsigned long planeMask, char *d)
+{
+	_glamor_get_image(pDrawable, x, y, w, h, format, planeMask, d, TRUE);
+}
+
+Bool
+glamor_get_image_nf(DrawablePtr pDrawable, int x, int y, int w, int h,
+		    unsigned int format, unsigned long planeMask, char *d)
+{
+	return _glamor_get_image(pDrawable, x, y, w, 
+				 h, format, planeMask, d, FALSE);
+}
diff --git a/glamor/glamor_getspans.c b/glamor/glamor_getspans.c
new file mode 100644
index 000000000..6d6c8e9a4
--- /dev/null
+++ b/glamor/glamor_getspans.c
@@ -0,0 +1,95 @@
+/*
+ * Copyright © 2009 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ *
+ * Authors:
+ *    Eric Anholt <eric@anholt.net>
+ *    Zhigang Gong <zhigang.gong@linux.intel.com>
+ *
+ */
+
+#include "glamor_priv.h"
+
+static Bool 
+_glamor_get_spans(DrawablePtr drawable,
+		  int wmax,
+		  DDXPointPtr points, int *widths, int count, char *dst,
+		  Bool fallback)
+{
+	PixmapPtr pixmap = glamor_get_drawable_pixmap(drawable);
+	glamor_pixmap_private *pixmap_priv =
+	    glamor_get_pixmap_private(pixmap);
+	int i;
+	uint8_t *readpixels_dst = (uint8_t *) dst;
+	void *data;
+	int x_off, y_off;
+	Bool ret = FALSE;
+
+	if (!GLAMOR_PIXMAP_PRIV_HAS_FBO(pixmap_priv))
+		goto fail;
+
+	glamor_get_drawable_deltas(drawable, pixmap, &x_off, &y_off);
+	for (i = 0; i < count; i++) {
+		data = glamor_download_sub_pixmap_to_cpu(pixmap, points[i].x + x_off,
+							 points[i].y + y_off, widths[i], 1,
+							 PixmapBytePad(widths[i], drawable->depth),
+							 readpixels_dst, 0, GLAMOR_ACCESS_RO);
+		assert(data == readpixels_dst);
+		readpixels_dst += PixmapBytePad(widths[i], drawable->depth);
+	}
+
+	ret = TRUE;
+	goto done;
+fail:
+
+	if (!fallback
+	    && glamor_ddx_fallback_check_pixmap(drawable))
+		goto done;
+
+	ret = TRUE;
+	if (glamor_prepare_access(drawable, GLAMOR_ACCESS_RO)) {
+		fbGetSpans(drawable, wmax, points, widths, count, dst);
+		glamor_finish_access(drawable, GLAMOR_ACCESS_RO);
+	}
+done:
+	return ret;
+}
+
+void
+glamor_get_spans(DrawablePtr drawable,
+		 int wmax,
+		 DDXPointPtr points, int *widths, int count, char *dst)
+{
+	_glamor_get_spans(drawable, wmax, points, 
+			  widths, count, dst, TRUE);
+}
+
+Bool
+glamor_get_spans_nf(DrawablePtr drawable,
+		    int wmax,
+		    DDXPointPtr points, int *widths, int count, char *dst)
+{
+	return _glamor_get_spans(drawable, wmax, points, 
+				 widths, count, dst, FALSE);
+}
+
+
+
diff --git a/glamor/glamor_gl_dispatch.c b/glamor/glamor_gl_dispatch.c
new file mode 100644
index 000000000..da99e2627
--- /dev/null
+++ b/glamor/glamor_gl_dispatch.c
@@ -0,0 +1,118 @@
+/*
+ * Copyright © 2009 Intel Corporation
+ * Copyright © 1998 Keith Packard
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ *
+ * Authors:
+ *    Zhigang Gong <zhigang.gong@gmail.com>
+ *
+ */
+
+#include "glamor_priv.h"
+#include <dlfcn.h>
+
+#define INIT_FUNC(dst,func_name,get)			\
+  dst->func_name = get(#func_name);			\
+  if (dst->func_name == NULL) {				\
+    dst->func_name = (void *)dlsym(NULL, #func_name);	\
+    if (dst->func_name == NULL) {			\
+      ErrorF("Failed to get function %s\n", #func_name);\
+      goto fail;					\
+    }							\
+  }							\
+
+_X_EXPORT Bool
+glamor_gl_dispatch_init_impl(struct glamor_gl_dispatch *dispatch,
+			     int gl_version,
+			     void *(*get_proc_address) (const char *))
+{
+#ifndef GLAMOR_GLES2
+	INIT_FUNC(dispatch, glMatrixMode, get_proc_address);
+	INIT_FUNC(dispatch, glLoadIdentity, get_proc_address);
+	INIT_FUNC(dispatch, glRasterPos2i, get_proc_address);
+	INIT_FUNC(dispatch, glDrawPixels, get_proc_address);
+	INIT_FUNC(dispatch, glLogicOp, get_proc_address);
+	INIT_FUNC(dispatch, glMapBuffer, get_proc_address);
+	INIT_FUNC(dispatch, glMapBufferRange, get_proc_address);
+	INIT_FUNC(dispatch, glUnmapBuffer, get_proc_address);
+	INIT_FUNC(dispatch, glBlitFramebuffer, get_proc_address);
+	INIT_FUNC(dispatch, glDrawRangeElements, get_proc_address);
+#endif
+	INIT_FUNC(dispatch, glViewport, get_proc_address);
+	INIT_FUNC(dispatch, glDrawArrays, get_proc_address);
+	INIT_FUNC(dispatch, glDrawElements, get_proc_address);
+	INIT_FUNC(dispatch, glReadPixels, get_proc_address);
+	INIT_FUNC(dispatch, glPixelStorei, get_proc_address);
+	INIT_FUNC(dispatch, glTexParameteri, get_proc_address);
+	INIT_FUNC(dispatch, glTexImage2D, get_proc_address);
+	INIT_FUNC(dispatch, glGenTextures, get_proc_address);
+	INIT_FUNC(dispatch, glDeleteTextures, get_proc_address);
+	INIT_FUNC(dispatch, glBindTexture, get_proc_address);
+	INIT_FUNC(dispatch, glTexSubImage2D, get_proc_address);
+	INIT_FUNC(dispatch, glFlush, get_proc_address);
+	INIT_FUNC(dispatch, glFinish, get_proc_address);
+	INIT_FUNC(dispatch, glGetIntegerv, get_proc_address);
+	INIT_FUNC(dispatch, glGetString, get_proc_address);
+	INIT_FUNC(dispatch, glScissor, get_proc_address);
+	INIT_FUNC(dispatch, glEnable, get_proc_address);
+	INIT_FUNC(dispatch, glDisable, get_proc_address);
+	INIT_FUNC(dispatch, glBlendFunc, get_proc_address);
+	INIT_FUNC(dispatch, glActiveTexture, get_proc_address);
+	INIT_FUNC(dispatch, glGenBuffers, get_proc_address);
+	INIT_FUNC(dispatch, glBufferData, get_proc_address);
+	INIT_FUNC(dispatch, glBindBuffer, get_proc_address);
+	INIT_FUNC(dispatch, glDeleteBuffers, get_proc_address);
+	INIT_FUNC(dispatch, glFramebufferTexture2D, get_proc_address);
+	INIT_FUNC(dispatch, glBindFramebuffer, get_proc_address);
+	INIT_FUNC(dispatch, glDeleteFramebuffers, get_proc_address);
+	INIT_FUNC(dispatch, glGenFramebuffers, get_proc_address);
+	INIT_FUNC(dispatch, glCheckFramebufferStatus, get_proc_address);
+	INIT_FUNC(dispatch, glVertexAttribPointer, get_proc_address);
+	INIT_FUNC(dispatch, glDisableVertexAttribArray, get_proc_address);
+	INIT_FUNC(dispatch, glEnableVertexAttribArray, get_proc_address);
+	INIT_FUNC(dispatch, glBindAttribLocation, get_proc_address);
+	INIT_FUNC(dispatch, glLinkProgram, get_proc_address);
+	INIT_FUNC(dispatch, glShaderSource, get_proc_address);
+
+	INIT_FUNC(dispatch, glUseProgram, get_proc_address);
+	INIT_FUNC(dispatch, glUniform1i, get_proc_address);
+	INIT_FUNC(dispatch, glUniform1f, get_proc_address);
+	INIT_FUNC(dispatch, glUniform4f, get_proc_address);
+	INIT_FUNC(dispatch, glUniform4fv, get_proc_address);
+	INIT_FUNC(dispatch, glUniform1fv, get_proc_address);
+	INIT_FUNC(dispatch, glUniform2fv, get_proc_address);
+	INIT_FUNC(dispatch, glUniformMatrix3fv, get_proc_address);
+	INIT_FUNC(dispatch, glCreateProgram, get_proc_address);
+	INIT_FUNC(dispatch, glDeleteProgram, get_proc_address);
+	INIT_FUNC(dispatch, glCreateShader, get_proc_address);
+	INIT_FUNC(dispatch, glCompileShader, get_proc_address);
+	INIT_FUNC(dispatch, glAttachShader, get_proc_address);
+	INIT_FUNC(dispatch, glDeleteShader, get_proc_address);
+	INIT_FUNC(dispatch, glGetShaderiv, get_proc_address);
+	INIT_FUNC(dispatch, glGetShaderInfoLog, get_proc_address);
+	INIT_FUNC(dispatch, glGetProgramiv, get_proc_address);
+	INIT_FUNC(dispatch, glGetProgramInfoLog, get_proc_address);
+	INIT_FUNC(dispatch, glGetUniformLocation, get_proc_address);
+
+	return TRUE;
+      fail:
+	return FALSE;
+}
diff --git a/glamor/glamor_gl_dispatch.h b/glamor/glamor_gl_dispatch.h
new file mode 100644
index 000000000..76dadd49e
--- /dev/null
+++ b/glamor/glamor_gl_dispatch.h
@@ -0,0 +1,138 @@
+typedef struct glamor_gl_dispatch {
+	/* Transformation functions */
+	void (*glMatrixMode) (GLenum mode);
+	void (*glLoadIdentity) (void);
+	void (*glViewport) (GLint x, GLint y, GLsizei width,
+			    GLsizei height);
+	/* Drawing functions */
+	void (*glRasterPos2i) (GLint x, GLint y);
+
+	/* Vertex Array */
+	void (*glDrawArrays) (GLenum mode, GLint first, GLsizei count);
+
+	/* Elements Array*/
+	void (*glDrawElements) (GLenum mode, GLsizei count, GLenum type, const GLvoid * indices);
+	void (*glDrawRangeElements) (GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type, const GLvoid * indices);
+
+	/* Raster functions */
+	void (*glReadPixels) (GLint x, GLint y,
+			      GLsizei width, GLsizei height,
+			      GLenum format, GLenum type, GLvoid * pixels);
+
+	void (*glDrawPixels) (GLsizei width, GLsizei height,
+			      GLenum format, GLenum type,
+			      const GLvoid * pixels);
+	void (*glPixelStorei) (GLenum pname, GLint param);
+	/* Texture Mapping */
+
+	void (*glTexParameteri) (GLenum target, GLenum pname, GLint param);
+	void (*glTexImage2D) (GLenum target, GLint level,
+			      GLint internalFormat,
+			      GLsizei width, GLsizei height,
+			      GLint border, GLenum format, GLenum type,
+			      const GLvoid * pixels);
+	/* 1.1 */
+	void (*glGenTextures) (GLsizei n, GLuint * textures);
+	void (*glDeleteTextures) (GLsizei n, const GLuint * textures);
+	void (*glBindTexture) (GLenum target, GLuint texture);
+	void (*glTexSubImage2D) (GLenum target, GLint level,
+				 GLint xoffset, GLint yoffset,
+				 GLsizei width, GLsizei height,
+				 GLenum format, GLenum type,
+				 const GLvoid * pixels);
+	/* MISC */
+	void (*glFlush) (void);
+	void (*glFinish) (void);
+	void (*glGetIntegerv) (GLenum pname, GLint * params);
+	const GLubyte *(*glGetString) (GLenum name);
+	void (*glScissor) (GLint x, GLint y, GLsizei width,
+			   GLsizei height);
+	void (*glEnable) (GLenum cap);
+	void (*glDisable) (GLenum cap);
+	void (*glBlendFunc) (GLenum sfactor, GLenum dfactor);
+	void (*glLogicOp) (GLenum opcode);
+
+	/* 1.3 */
+	void (*glActiveTexture) (GLenum texture);
+
+	/* GL Extentions */
+	void (*glGenBuffers) (GLsizei n, GLuint * buffers);
+	void (*glBufferData) (GLenum target, GLsizeiptr size,
+			      const GLvoid * data, GLenum usage);
+	GLvoid *(*glMapBuffer) (GLenum target, GLenum access);
+	GLvoid *(*glMapBufferRange) (GLenum target, GLintptr offset, GLsizeiptr length, GLbitfield access);
+	GLboolean (*glUnmapBuffer) (GLenum target);
+	void (*glBindBuffer) (GLenum target, GLuint buffer);
+	void (*glDeleteBuffers) (GLsizei n, const GLuint * buffers);
+
+	void (*glFramebufferTexture2D) (GLenum target, GLenum attachment,
+					GLenum textarget, GLuint texture,
+					GLint level);
+	void (*glBindFramebuffer) (GLenum target, GLuint framebuffer);
+	void (*glDeleteFramebuffers) (GLsizei n,
+				      const GLuint * framebuffers);
+	void (*glGenFramebuffers) (GLsizei n, GLuint * framebuffers);
+	GLenum (*glCheckFramebufferStatus) (GLenum target);
+	void (*glBlitFramebuffer) (GLint srcX0, GLint srcY0, GLint srcX1,
+				   GLint srcY1, GLint dstX0, GLint dstY0,
+				   GLint dstX1, GLint dstY1,
+				   GLbitfield mask, GLenum filter);
+
+	void (*glVertexAttribPointer) (GLuint index, GLint size,
+				       GLenum type, GLboolean normalized,
+				       GLsizei stride,
+				       const GLvoid * pointer);
+	void (*glDisableVertexAttribArray) (GLuint index);
+	void (*glEnableVertexAttribArray) (GLuint index);
+	void (*glBindAttribLocation) (GLuint program, GLuint index,
+				      const GLchar * name);
+
+	void (*glLinkProgram) (GLuint program);
+	void (*glShaderSource) (GLuint shader, GLsizei count,
+				const GLchar * *string,
+				const GLint * length);
+	void (*glUseProgram) (GLuint program);
+	void (*glUniform1i) (GLint location, GLint v0);
+	void (*glUniform1f) (GLint location, GLfloat v0);
+	void (*glUniform4f) (GLint location, GLfloat v0, GLfloat v1,
+			     GLfloat v2, GLfloat v3);
+	void (*glUniform1fv) (GLint location, GLsizei count,
+			      const GLfloat * value);
+	void (*glUniform2fv) (GLint location, GLsizei count,
+			      const GLfloat * value);
+	void (*glUniform4fv) (GLint location, GLsizei count,
+			      const GLfloat * value);
+	void (*glUniformMatrix3fv) (GLint location, GLsizei count,
+		           GLboolean transpose, const GLfloat* value);
+	GLuint (*glCreateProgram) (void);
+	GLuint (*glDeleteProgram) (GLuint);
+	GLuint (*glCreateShader) (GLenum type);
+	void (*glCompileShader) (GLuint shader);
+	void (*glAttachShader) (GLuint program, GLuint shader);
+	void (*glDeleteShader) (GLuint shader);
+	void (*glGetShaderiv) (GLuint shader, GLenum pname,
+			       GLint * params);
+	void (*glGetShaderInfoLog) (GLuint shader, GLsizei bufSize,
+				    GLsizei * length, GLchar * infoLog);
+	void (*glGetProgramiv) (GLuint program, GLenum pname,
+				GLint * params);
+	void (*glGetProgramInfoLog) (GLuint program, GLsizei bufSize,
+				     GLsizei * length, GLchar * infoLog);
+	GLint (*glGetUniformLocation) (GLuint program,
+				       const GLchar * name);
+
+} glamor_gl_dispatch;
+
+
+typedef void *(*get_proc_address_t) (const char *);
+
+_X_EXPORT Bool
+glamor_gl_dispatch_init_impl(struct glamor_gl_dispatch *dispatch,
+			     int gl_version,
+			     get_proc_address_t get_proc_address);
+
+
+_X_EXPORT Bool
+glamor_gl_dispatch_init(ScreenPtr screen,
+			struct glamor_gl_dispatch *dispatch,
+			int gl_version);
diff --git a/glamor/glamor_glext.h b/glamor/glamor_glext.h
new file mode 100644
index 000000000..1f7206b99
--- /dev/null
+++ b/glamor/glamor_glext.h
@@ -0,0 +1,64 @@
+/*
+ * Copyright © 2001 Keith Packard
+ * Copyright © 2008 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ *
+ * Authors:
+ *    Zhigang Gong <zhigang.gong@linux.intel.com>
+ *
+ */
+
+
+#ifdef GLAMOR_GLES2
+
+#define GL_BGRA                                 GL_BGRA_EXT
+#define GL_COLOR_INDEX                          0x1900
+#define GL_BITMAP                               0x1A00
+#define GL_UNSIGNED_INT_8_8_8_8                 0x8035
+#define GL_UNSIGNED_INT_8_8_8_8_REV             0x8367
+#define GL_UNSIGNED_INT_2_10_10_10_REV          0x8368
+#define GL_UNSIGNED_INT_10_10_10_2              0x8036
+#define GL_UNSIGNED_SHORT_5_6_5_REV             0x8364
+#define GL_UNSIGNED_SHORT_1_5_5_5_REV           0x8366
+#define GL_UNSIGNED_SHORT_4_4_4_4_REV           0x8365
+
+#define GL_PIXEL_PACK_BUFFER              0x88EB
+#define GL_PIXEL_UNPACK_BUFFER            0x88EC
+#define GL_CLAMP_TO_BORDER                0x812D
+
+#define GL_READ_WRITE                     0x88BA
+#define GL_READ_ONLY                      0x88B8
+#define GL_WRITE_ONLY                     0x88B9
+#define GL_STREAM_DRAW                    0x88E0
+#define GL_STREAM_READ                    0x88E1
+#define GL_PACK_ROW_LENGTH                      0x0D02
+#define GL_UNPACK_ROW_LENGTH                    0x0CF2
+
+#define GL_FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER 0x8CDB
+#define GL_FRAMEBUFFER_INCOMPLETE_READ_BUFFER 0x8CDC
+#define GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE 0x8D56
+
+#define GL_PACK_INVERT_MESA               0x8758
+#define GL_MAP_UNSYNCHRONIZED_BIT         0x0020
+#define GL_MAP_READ_BIT                   0x0001
+#define GL_MAP_WRITE_BIT                  0x0002
+
+#endif
diff --git a/glamor/glamor_glyphblt.c b/glamor/glamor_glyphblt.c
new file mode 100644
index 000000000..b55327c4b
--- /dev/null
+++ b/glamor/glamor_glyphblt.c
@@ -0,0 +1,118 @@
+/*
+ * Copyright © 2009 Intel Corporation
+ * Copyright © 1998 Keith Packard
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ *
+ * Authors:
+ *    Zhigang Gong <zhigang.gong@gmail.com>
+ *
+ */
+
+#include "glamor_priv.h"
+
+static Bool
+_glamor_image_glyph_blt(DrawablePtr pDrawable, GCPtr pGC,
+                    int x, int y, unsigned int nglyph,
+                    CharInfoPtr * ppci, pointer pglyphBase, Bool fallback)
+{
+	if (!fallback 
+	    && glamor_ddx_fallback_check_pixmap(pDrawable)
+	    && glamor_ddx_fallback_check_gc(pGC))
+		return FALSE;
+
+	miImageGlyphBlt(pDrawable, pGC, x, y, nglyph, ppci, pglyphBase);
+	return TRUE;
+}
+
+void
+glamor_image_glyph_blt(DrawablePtr pDrawable, GCPtr pGC,
+                    int x, int y, unsigned int nglyph,
+                    CharInfoPtr * ppci, pointer pglyphBase)
+{
+	_glamor_image_glyph_blt(pDrawable, pGC, x, y, nglyph, ppci, pglyphBase, TRUE);
+}
+
+Bool
+glamor_image_glyph_blt_nf(DrawablePtr pDrawable, GCPtr pGC,
+                    int x, int y, unsigned int nglyph,
+                    CharInfoPtr * ppci, pointer pglyphBase)
+{
+	return _glamor_image_glyph_blt(pDrawable, pGC, x, y, nglyph, ppci, pglyphBase, FALSE);
+}
+
+static Bool
+_glamor_poly_glyph_blt(DrawablePtr pDrawable, GCPtr pGC,
+                    int x, int y, unsigned int nglyph,
+                    CharInfoPtr * ppci, pointer pglyphBase, Bool fallback)
+{
+	if (!fallback
+	    && glamor_ddx_fallback_check_pixmap(pDrawable)
+	    && glamor_ddx_fallback_check_gc(pGC))
+		return FALSE;
+
+	miPolyGlyphBlt(pDrawable, pGC, x, y, nglyph, ppci, pglyphBase);
+	return TRUE;
+}
+
+void
+glamor_poly_glyph_blt(DrawablePtr pDrawable, GCPtr pGC,
+                    int x, int y, unsigned int nglyph,
+                    CharInfoPtr * ppci, pointer pglyphBase)
+{
+	_glamor_poly_glyph_blt(pDrawable, pGC, x, y, nglyph, ppci, pglyphBase, TRUE);
+}
+
+Bool
+glamor_poly_glyph_blt_nf(DrawablePtr pDrawable, GCPtr pGC,
+                    int x, int y, unsigned int nglyph,
+                    CharInfoPtr * ppci, pointer pglyphBase)
+{
+	return _glamor_poly_glyph_blt(pDrawable, pGC, x, y, nglyph, ppci, pglyphBase, FALSE);
+}
+
+static Bool
+_glamor_push_pixels(GCPtr pGC, PixmapPtr pBitmap,
+		    DrawablePtr pDrawable, int w, int h, int x, int y, Bool fallback)
+{
+	if (!fallback
+	    && glamor_ddx_fallback_check_pixmap(pDrawable)
+	    && glamor_ddx_fallback_check_pixmap(&pBitmap->drawable)
+	    && glamor_ddx_fallback_check_gc(pGC))
+		return FALSE;
+
+	miPushPixels(pGC, pBitmap, pDrawable, w, h, x, y);
+	return TRUE;
+}
+
+void
+glamor_push_pixels(GCPtr pGC, PixmapPtr pBitmap,
+		   DrawablePtr pDrawable, int w, int h, int x, int y)
+{
+	_glamor_push_pixels(pGC, pBitmap, pDrawable, w, h, x, y, TRUE);
+}
+
+Bool
+glamor_push_pixels_nf(GCPtr pGC, PixmapPtr pBitmap,
+		      DrawablePtr pDrawable, int w, int h, int x, int y)
+{
+	return _glamor_push_pixels(pGC, pBitmap, pDrawable, w, h, x, y, FALSE);
+}
+
diff --git a/glamor/glamor_glyphs.c b/glamor/glamor_glyphs.c
new file mode 100644
index 000000000..fc361df42
--- /dev/null
+++ b/glamor/glamor_glyphs.c
@@ -0,0 +1,1806 @@
+/*
+ * Copyright © 2008 Red Hat, Inc.
+ * Partly based on code Copyright © 2000 SuSE, Inc.
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation, and that the name of Red Hat not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission.  Red Hat makes no representations about the
+ * suitability of this software for any purpose.  It is provided "as is"
+ * without express or implied warranty.
+ *
+ * Red Hat DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL Red Hat
+ * BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation, and that the name of SuSE not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission.  SuSE makes no representations about the
+ * suitability of this software for any purpose.  It is provided "as is"
+ * without express or implied warranty.
+ *
+ * SuSE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL SuSE
+ * BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ * Author: Owen Taylor <otaylor@fishsoup.net>
+ * Based on code by: Keith Packard
+ */
+
+#include <stdlib.h>
+
+#include "glamor_priv.h"
+
+#include <mipict.h>
+
+#if DEBUG_GLYPH_CACHE
+#define DBG_GLYPH_CACHE(a) ErrorF a
+#else
+#define DBG_GLYPH_CACHE(a)
+#endif
+
+/* Width of the pixmaps we use for the caches; this should be less than
+ * max texture size of the driver; this may need to actually come from
+ * the driver.
+ */
+
+/* Maximum number of glyphs we buffer on the stack before flushing
+ * rendering to the mask or destination surface.
+ */
+#define GLYPH_BUFFER_SIZE 1024
+
+#define CACHE_PICTURE_SIZE 1024
+#define GLYPH_MIN_SIZE 8
+#define GLYPH_MAX_SIZE	64
+#define GLYPH_CACHE_SIZE ((CACHE_PICTURE_SIZE) * CACHE_PICTURE_SIZE / (GLYPH_MIN_SIZE * GLYPH_MIN_SIZE))
+#define MASK_CACHE_MAX_SIZE 32
+#define MASK_CACHE_WIDTH (CACHE_PICTURE_SIZE / MASK_CACHE_MAX_SIZE)
+#define MASK_CACHE_MASK ((1LL << (MASK_CACHE_WIDTH)) - 1)
+
+typedef struct {
+	PicturePtr source;
+	glamor_composite_rect_t rects[GLYPH_BUFFER_SIZE + 4];
+	int count;
+} glamor_glyph_buffer_t;
+
+struct glamor_glyph {
+	glamor_glyph_cache_t *cache;
+	uint16_t x, y;
+	uint16_t size, pos;
+	unsigned long long left_x1_map, left_x2_map;
+	unsigned long long right_x1_map, right_x2_map;  /* Use to check real intersect or not. */
+	Bool has_edge_map;
+	Bool cached;
+};
+
+typedef enum {
+	GLAMOR_GLYPH_SUCCESS,	/* Glyph added to render buffer */
+	GLAMOR_GLYPH_FAIL,	/* out of memory, etc */
+	GLAMOR_GLYPH_NEED_FLUSH,	/* would evict a glyph already in the buffer */
+} glamor_glyph_cache_result_t;
+
+#define NeedsComponent(f) (PICT_FORMAT_A(f) != 0 && PICT_FORMAT_RGB(f) != 0)
+static DevPrivateKeyRec glamor_glyph_key;
+
+static inline struct glamor_glyph *
+glamor_glyph_get_private(GlyphPtr glyph)
+{
+	return (struct glamor_glyph*)glyph->devPrivates;
+}
+
+/*
+ * Mask cache is located at the corresponding cache picture's last row.
+ * and is deadicated for the mask picture when do the glyphs_via_mask.
+ *
+ * As we split the glyphs list according to its overlapped or non-overlapped,
+ * we can reduce the length of glyphs to do the glyphs_via_mask to 2 or 3
+ * glyphs one time for most cases. Thus it give us a case to allocate a
+ * small portion of the corresponding cache directly as the mask picture.
+ * Then we can rendering the glyphs to this mask picture, and latter we
+ * can accumulate the second steps, composite the mask to the dest with
+ * the other non-overlapped glyphs's rendering process.
+ * Another major benefit is we now only need to clear a relatively small mask
+ * region then before. It also make us implement a bunch mask picture clearing
+ * algorithm to avoid too frequently small region clearing.
+ *
+ * If there is no any overlapping, this method will not get performance gain.
+ * If there is some overlapping, then this algorithm can get about 15% performance
+ * gain.
+ */
+
+struct glamor_glyph_mask_cache_entry {
+	int idx;
+	int width;
+	int height;
+	int x;
+	int y;
+};
+
+static struct glamor_glyph_mask_cache {
+	PixmapPtr pixmap;
+	struct glamor_glyph_mask_cache_entry mcache[MASK_CACHE_WIDTH];
+	unsigned int free_bitmap;
+	unsigned int cleared_bitmap;
+}*mask_cache[GLAMOR_NUM_GLYPH_CACHE_FORMATS] = {NULL};
+
+static void
+clear_mask_cache_bitmap(struct glamor_glyph_mask_cache *maskcache,
+		     unsigned int clear_mask_bits)
+{
+	unsigned int i = 0;
+	BoxRec box[MASK_CACHE_WIDTH];
+	int box_cnt = 0;
+
+	assert((clear_mask_bits & ~MASK_CACHE_MASK) == 0);
+	for(i = 0; i < MASK_CACHE_WIDTH;i++)
+	{
+		if (clear_mask_bits & (1 << i)) {
+			box[box_cnt].x1 = maskcache->mcache[i].x;
+			box[box_cnt].x2 = maskcache->mcache[i].x + MASK_CACHE_MAX_SIZE;
+			box[box_cnt].y1 = maskcache->mcache[i].y;
+			box[box_cnt].y2 = maskcache->mcache[i].y + MASK_CACHE_MAX_SIZE;
+			box_cnt++;
+		}
+	}
+	glamor_solid_boxes(maskcache->pixmap, box, box_cnt, 0);
+	maskcache->cleared_bitmap |= clear_mask_bits;
+}
+
+static void
+clear_mask_cache(struct glamor_glyph_mask_cache *maskcache)
+{
+	int x = 0;
+	int cnt = MASK_CACHE_WIDTH;
+	unsigned int i = 0;
+	struct glamor_glyph_mask_cache_entry *mce;
+	glamor_solid(maskcache->pixmap, 0, CACHE_PICTURE_SIZE, CACHE_PICTURE_SIZE,
+		     MASK_CACHE_MAX_SIZE, GXcopy, 0xFFFFFFFF, 0);
+	mce = &maskcache->mcache[0];
+	while(cnt--) {
+		mce->width = 0;
+		mce->height = 0;
+		mce->x = x;
+		mce->y = CACHE_PICTURE_SIZE;
+		mce->idx = i++;
+		x += MASK_CACHE_MAX_SIZE;
+		mce++;
+	}
+	maskcache->free_bitmap = MASK_CACHE_MASK;
+	maskcache->cleared_bitmap = MASK_CACHE_MASK;
+}
+
+static int
+find_continuous_bits(unsigned int bits, int bits_cnt, unsigned int *pbits_mask)
+{
+	int idx = 0;
+	unsigned int bits_mask;
+	bits_mask = ((1LL << bits_cnt) - 1);
+
+	if (unlikely(bits_cnt > 56)) {
+		while(bits) {
+			if ((bits & bits_mask) == bits_mask) {
+				*pbits_mask = bits_mask << idx;
+				return idx;
+			}
+			bits >>= 1;
+			idx++;
+		}
+	} else {
+		idx = __fls(bits);
+		while(bits) {
+			unsigned int temp_bits;
+			temp_bits = bits_mask << (idx - bits_cnt + 1);
+			if ((bits & temp_bits) == temp_bits) {
+				*pbits_mask = temp_bits;
+				return (idx - bits_cnt + 1);
+			}
+			/* Find first zero. And clear the tested bit.*/
+			bits &= ~(1LL<<idx);
+			idx = __fls(~bits);
+			bits &= ~((1LL << idx) - 1);
+			idx--;
+		}
+	}
+	return -1;
+}
+
+static struct glamor_glyph_mask_cache_entry *
+get_mask_cache(struct glamor_glyph_mask_cache *maskcache, int blocks)
+{
+	int free_cleared_bit, idx = -1;
+	int retry_cnt = 0;
+	unsigned int bits_mask = 0;
+
+	if (maskcache->free_bitmap == 0)
+		return NULL;
+retry:
+	free_cleared_bit = maskcache->free_bitmap & maskcache->cleared_bitmap;
+	if (free_cleared_bit && blocks == 1) {
+		idx = __fls(free_cleared_bit);
+		bits_mask = 1 << idx;
+	} else if (free_cleared_bit && blocks > 1) {
+		idx = find_continuous_bits(free_cleared_bit, blocks, &bits_mask);
+	}
+
+	if (idx < 0) {
+		clear_mask_cache_bitmap(maskcache, maskcache->free_bitmap);
+		if (retry_cnt++ > 2)
+			return NULL;
+		goto retry;
+	}
+
+	maskcache->cleared_bitmap &= ~bits_mask;
+	maskcache->free_bitmap &= ~bits_mask;
+	DEBUGF("get idx %d free %x clear %x \n",
+		idx, maskcache->free_bitmap, maskcache->cleared_bitmap);
+	return &maskcache->mcache[idx];
+}
+
+static void
+put_mask_cache_bitmap(struct glamor_glyph_mask_cache *maskcache,
+		       unsigned int bitmap)
+{
+	maskcache->free_bitmap |= bitmap;
+	DEBUGF("put bitmap %x free %x clear %x \n",
+		bitmap, maskcache->free_bitmap, maskcache->cleared_bitmap);
+}
+
+static void
+glamor_unrealize_glyph_caches(ScreenPtr pScreen)
+{
+	glamor_screen_private *glamor = glamor_get_screen_private(pScreen);
+	int i;
+
+	if (!glamor->glyph_cache_initialized)
+		return;
+
+	for (i = 0; i < GLAMOR_NUM_GLYPH_CACHE_FORMATS; i++) {
+		glamor_glyph_cache_t *cache = &glamor->glyphCaches[i];
+
+		if (cache->picture)
+			FreePicture(cache->picture, 0);
+
+		if (cache->glyphs)
+			free(cache->glyphs);
+
+		if (mask_cache[i])
+			free(mask_cache[i]);
+	}
+	glamor->glyph_cache_initialized = FALSE;
+}
+
+void
+glamor_glyphs_fini(ScreenPtr pScreen)
+{
+	glamor_unrealize_glyph_caches(pScreen);
+}
+
+/* All caches for a single format share a single pixmap for glyph storage,
+ * allowing mixing glyphs of different sizes without paying a penalty
+ * for switching between source pixmaps. (Note that for a size of font
+ * right at the border between two sizes, we might be switching for almost
+ * every glyph.)
+ *
+ * This function allocates the storage pixmap, and then fills in the
+ * rest of the allocated structures for all caches with the given format.
+ */
+
+static Bool
+glamor_realize_glyph_caches(ScreenPtr pScreen)
+{
+	glamor_screen_private *glamor = glamor_get_screen_private(pScreen);
+	unsigned int formats[] = {
+		PIXMAN_a8,
+		PIXMAN_a8r8g8b8,
+	};
+	int i;
+
+	if (glamor->glyph_cache_initialized)
+		return TRUE;
+
+	glamor->glyph_cache_initialized = TRUE;
+	memset(glamor->glyphCaches, 0, sizeof(glamor->glyphCaches));
+
+	for (i = 0; i < sizeof(formats) / sizeof(formats[0]); i++) {
+		glamor_glyph_cache_t *cache = &glamor->glyphCaches[i];
+		PixmapPtr pixmap;
+		PicturePtr picture;
+		XID component_alpha;
+		int depth = PIXMAN_FORMAT_DEPTH(formats[i]);
+		int error;
+		PictFormatPtr pPictFormat =
+		    PictureMatchFormat(pScreen, depth, formats[i]);
+		if (!pPictFormat)
+			goto bail;
+
+		/* Now allocate the pixmap and picture */
+		pixmap = pScreen->CreatePixmap(pScreen,
+					      CACHE_PICTURE_SIZE,
+					      CACHE_PICTURE_SIZE + MASK_CACHE_MAX_SIZE, depth,
+					      0);
+		if (!pixmap)
+			goto bail;
+
+		component_alpha = NeedsComponent(pPictFormat->format);
+		picture = CreatePicture(0, &pixmap->drawable, pPictFormat,
+					CPComponentAlpha, &component_alpha,
+					serverClient, &error);
+
+		pScreen->DestroyPixmap(pixmap);
+		if (!picture)
+			goto bail;
+
+		ValidatePicture(picture);
+
+		cache->picture = picture;
+		cache->glyphs = calloc(sizeof(GlyphPtr), GLYPH_CACHE_SIZE);
+		if (!cache->glyphs)
+			goto bail;
+
+		cache->evict = rand() % GLYPH_CACHE_SIZE;
+		mask_cache[i] = calloc(1, sizeof(*mask_cache[i]));
+		mask_cache[i]->pixmap = pixmap;
+		clear_mask_cache(mask_cache[i]);
+	}
+	assert(i == GLAMOR_NUM_GLYPH_CACHE_FORMATS);
+
+	return TRUE;
+
+      bail:
+	glamor_unrealize_glyph_caches(pScreen);
+	return FALSE;
+}
+
+
+Bool
+glamor_glyphs_init(ScreenPtr pScreen)
+{
+	if (!dixRegisterPrivateKey(&glamor_glyph_key,
+		PRIVATE_GLYPH, sizeof(struct glamor_glyph)))
+		return FALSE;
+
+	/* Skip pixmap creation if we don't intend to use it. */
+
+	return glamor_realize_glyph_caches(pScreen);
+}
+
+/* The most efficient thing to way to upload the glyph to the screen
+ * is to use CopyArea; glamor pixmaps are always offscreen.
+ */
+static void
+glamor_glyph_cache_upload_glyph(ScreenPtr screen,
+				glamor_glyph_cache_t * cache,
+				GlyphPtr glyph, int x, int y)
+{
+	PicturePtr pGlyphPicture = GlyphPicture(glyph)[screen->myNum];
+	PixmapPtr pGlyphPixmap = (PixmapPtr) pGlyphPicture->pDrawable;
+	PixmapPtr pCachePixmap = (PixmapPtr) cache->picture->pDrawable;
+	PixmapPtr scratch;
+	BoxRec box;
+	GCPtr gc;
+
+	gc = GetScratchGC(pCachePixmap->drawable.depth, screen);
+	if (!gc)
+		return;
+
+	ValidateGC(&pCachePixmap->drawable, gc);
+
+	scratch = pGlyphPixmap;
+	if (pGlyphPixmap->drawable.depth != pCachePixmap->drawable.depth) {
+
+		scratch = glamor_create_pixmap(screen,
+					       glyph->info.width,
+					       glyph->info.height,
+					       pCachePixmap->
+					       drawable.depth, 0);
+		if (scratch) {
+			PicturePtr picture;
+			int error;
+
+			picture =
+			    CreatePicture(0,
+					  &scratch->drawable,
+					  PictureMatchFormat
+					  (screen,
+					   pCachePixmap->
+					   drawable.depth,
+					   cache->picture->format),
+					  0, NULL, serverClient,
+				  &error);
+			if (picture) {
+				ValidatePicture(picture);
+				glamor_composite(PictOpSrc,
+					      pGlyphPicture,
+					      NULL, picture,
+					      0, 0, 0, 0, 0,
+					      0,
+					      glyph->info.width,
+					      glyph->info.height);
+				FreePicture(picture, 0);
+			}
+		} else {
+			scratch = pGlyphPixmap;
+		}
+	}
+
+	box.x1 = x;
+	box.y1 = y;
+	box.x2 = x + glyph->info.width;
+	box.y2 = y + glyph->info.height;
+	glamor_copy_n_to_n_nf(&scratch->drawable,
+			    &pCachePixmap->drawable, NULL,
+			    &box, 1,
+			    -x, -y,
+			    FALSE, FALSE, 0, NULL);
+	if (scratch != pGlyphPixmap)
+		screen->DestroyPixmap(scratch);
+
+	FreeScratchGC(gc);
+}
+
+
+void
+glamor_glyph_unrealize(ScreenPtr screen, GlyphPtr glyph)
+{
+	struct glamor_glyph *priv;
+
+	/* Use Lookup in case we have not attached to this glyph. */
+	priv = glamor_glyph_get_private(glyph);
+
+	if (priv->cached)
+		priv->cache->glyphs[priv->pos] = NULL;
+}
+
+/* Cut and paste from render/glyph.c - probably should export it instead */
+static void
+glamor_glyph_extents(int nlist,
+		     GlyphListPtr list, GlyphPtr * glyphs, BoxPtr extents)
+{
+	int x1, x2, y1, y2;
+	int x, y, n;
+
+	x1 = y1 = MAXSHORT;
+	x2 = y2 = MINSHORT;
+	x = y = 0;
+	while (nlist--) {
+		x += list->xOff;
+		y += list->yOff;
+		n = list->len;
+		list++;
+		while (n--) {
+			GlyphPtr glyph = *glyphs++;
+			int v;
+
+			v = x - glyph->info.x;
+			if (v < x1)
+				x1 = v;
+			v += glyph->info.width;
+			if (v > x2)
+				x2 = v;
+
+			v = y - glyph->info.y;
+			if (v < y1)
+				y1 = v;
+			v += glyph->info.height;
+			if (v > y2)
+				y2 = v;
+
+			x += glyph->info.xOff;
+			y += glyph->info.yOff;
+		}
+	}
+
+	extents->x1 = x1 < MINSHORT ? MINSHORT : x1;
+	extents->x2 = x2 > MAXSHORT ? MAXSHORT : x2;
+	extents->y1 = y1 < MINSHORT ? MINSHORT : y1;
+	extents->y2 = y2 > MAXSHORT ? MAXSHORT : y2;
+}
+
+static void
+glamor_glyph_priv_get_edge_map(GlyphPtr glyph, struct glamor_glyph *priv,
+			     PicturePtr glyph_picture)
+{
+	PixmapPtr glyph_pixmap = (PixmapPtr) glyph_picture->pDrawable;
+	int j;
+	unsigned long long left_x1_map = 0, left_x2_map = 0;
+	unsigned long long right_x1_map = 0, right_x2_map = 0;
+	int bitsPerPixel;
+	int stride;
+	void *bits;
+	int width;
+	unsigned int left_x1_data = 0, left_x2_data = 0;
+	unsigned int right_x1_data = 0, right_x2_data = 0;
+
+	bitsPerPixel = glyph_pixmap->drawable.bitsPerPixel;
+	stride = glyph_pixmap->devKind;
+	bits = glyph_pixmap->devPrivate.ptr;
+	width = glyph->info.width;
+
+	if (glyph_pixmap->drawable.width < 2
+	    || !(glyph_pixmap->drawable.depth == 8
+		|| glyph_pixmap->drawable.depth == 1
+		|| glyph_pixmap->drawable.depth == 32)) {
+		priv->has_edge_map = FALSE;
+		return;
+	}
+
+	left_x1_map = left_x2_map = 0;
+	right_x1_map = right_x2_map = 0;
+
+	for(j = 0; j < glyph_pixmap->drawable.height; j++)
+	{
+		if (bitsPerPixel == 8) {
+			unsigned char *data;
+			data =	(unsigned char*)((unsigned char*)bits + stride * j);
+			left_x1_data = *data++;
+			left_x2_data = *data;
+			data =	(unsigned char*)((unsigned char*)bits + stride * j + width - 2);
+			right_x1_data = *data++;
+			right_x2_data = *data;
+		} else if (bitsPerPixel == 32) {
+			left_x1_data = *((unsigned int*)bits + stride/4 * j);
+			left_x2_data = *((unsigned int*)bits + stride/4 * j + 1);
+			right_x1_data = *((unsigned int*)bits + stride/4 * j + width - 2);
+			right_x2_data = *((unsigned int*)bits + stride/4 * j + width - 1);
+		} else if (bitsPerPixel == 1) {
+			unsigned char temp;
+			temp = *((unsigned char*)glyph_pixmap->devPrivate.ptr
+				+ glyph_pixmap->devKind * j) & 0x3;
+			left_x1_data = temp & 0x1;
+			left_x2_data = temp & 0x2;
+
+			temp = *((unsigned char*)glyph_pixmap->devPrivate.ptr
+				+ glyph_pixmap->devKind * j
+				+ (glyph_pixmap->drawable.width - 2)/8);
+			right_x1_data = temp
+				    & (1 << ((glyph_pixmap->drawable.width - 2) % 8));
+			temp = *((unsigned char*)glyph_pixmap->devPrivate.ptr
+				+ glyph_pixmap->devKind * j
+				+ (glyph_pixmap->drawable.width - 1)/8);
+			right_x2_data = temp
+				   & (1 << ((glyph_pixmap->drawable.width - 1) % 8));
+		}
+		left_x1_map |= (left_x1_data !=0) << j;
+		left_x2_map |= (left_x2_data !=0) << j;
+		right_x1_map |= (right_x1_data !=0) << j;
+		right_x2_map |= (right_x2_data !=0) << j;
+	}
+
+	priv->left_x1_map = left_x1_map;
+	priv->left_x2_map = left_x2_map;
+	priv->right_x1_map = right_x1_map;
+	priv->right_x2_map = right_x2_map;
+	priv->has_edge_map = TRUE;
+	return;
+}
+
+/**
+ * Returns TRUE if the glyphs in the lists intersect.  Only checks based on
+ * bounding box, which appears to be good enough to catch most cases at least.
+ */
+
+#define INTERSECTED_TYPE_MASK 1
+#define NON_INTERSECTED 0
+#define INTERSECTED 1
+
+struct glamor_glyph_list {
+	int nlist;
+	GlyphListPtr list;
+	GlyphPtr *glyphs;
+	int type;
+};
+
+static Bool
+glyph_new_fixed_list(struct glamor_glyph_list *fixed_list,
+		     GlyphPtr *cur_glyphs,
+		     GlyphPtr **head_glyphs,
+		     GlyphListPtr cur_list,
+		     int cur_pos, int cur_x, int cur_y,
+		     int x1, int y1, int x2, int y2,
+		     GlyphListPtr *head_list,
+		     int *head_pos,
+		     int *head_x,
+		     int *head_y,
+		     int *fixed_cnt,
+		     int type,
+		     BoxPtr prev_extents
+		     )
+{
+	int x_off = 0;
+	int y_off = 0;
+	int n_off = 0;
+	int list_cnt;
+	if (type == NON_INTERSECTED) {
+		if (x1 < prev_extents->x2 && x2 > prev_extents->x1
+		    && y1 < prev_extents->y2 && y2 > prev_extents->y1)
+			return FALSE;
+		x_off = (*(cur_glyphs-1))->info.xOff;
+		y_off = (*(cur_glyphs-1))->info.yOff;
+		n_off = 1;
+	}
+
+	list_cnt = cur_list - *head_list + 1;
+	if (cur_pos <= n_off) {
+		DEBUGF("break at %d n_off %d\n", cur_pos, n_off);
+		list_cnt--;
+		if (cur_pos < n_off) {
+		/* we overlap with previous list's last glyph. */
+			x_off += cur_list->xOff;
+			y_off += cur_list->yOff;
+			cur_list--;
+			cur_pos = cur_list->len;
+			if (cur_pos <= n_off) {
+				list_cnt--;
+			}
+		}
+	}
+	DEBUGF("got %d lists\n", list_cnt);
+	if (list_cnt != 0) {
+		fixed_list->list = malloc(list_cnt * sizeof(*cur_list));
+		memcpy(fixed_list->list, *head_list, list_cnt * sizeof(*cur_list));
+		fixed_list->list[0].xOff = *head_x;
+		fixed_list->list[0].yOff = *head_y;
+		fixed_list->glyphs = *head_glyphs;
+		fixed_list->type = type & INTERSECTED_TYPE_MASK;
+		fixed_list->nlist = list_cnt;
+		if (cur_list != *head_list) {
+			fixed_list->list[0].len = (*head_list)->len - *head_pos;
+			if (cur_pos != n_off)
+			fixed_list->list[list_cnt - 1].len = cur_pos - n_off;
+		} else
+			fixed_list->list[0].len = cur_pos - *head_pos - n_off;
+		(*fixed_cnt)++;
+	}
+
+	if (type <= INTERSECTED) {
+		*head_list = cur_list;
+		*head_pos = cur_pos - n_off;
+		*head_x = cur_x - x_off;
+		*head_y = cur_y - y_off;
+		*head_glyphs = cur_glyphs - n_off;
+	}
+	return TRUE;
+}
+
+/*
+ * This function detects glyph lists's overlapping.
+ *
+ * If check_fake_overlap is set, then it will check the glyph's left
+ * and right small boxes's real overlapping pixels. And if there is
+ * no real pixel overlapping, then it will not be treated as overlapped
+ * case. And we also can configured it to ignore less than 2 pixels
+ * overlappig.
+ *
+ * This function analyzes all the lists and split the list to multiple
+ * lists which are pure overlapped glyph lists or pure non-overlapped
+ * list if the overlapping only ocurr on the two adjacent glyphs.
+ * Otherwise, it return -1.
+ *
+ **/
+
+static int
+glamor_glyphs_intersect(int nlist, GlyphListPtr list, GlyphPtr * glyphs,
+			PictFormatShort mask_format,
+			ScreenPtr screen, Bool check_fake_overlap,
+			struct glamor_glyph_list * fixed_list,
+			int fixed_size)
+{
+	int x1, x2, y1, y2;
+	int n;
+	int x, y;
+	BoxPtr extents;
+	BoxRec prev_extents;
+	Bool first = TRUE, first_list = TRUE;
+	Bool need_free_list_region = FALSE;
+	Bool need_free_fixed_list = FALSE;
+	struct glamor_glyph *priv = NULL;
+	Bool in_non_intersected_list = -1;
+	GlyphListPtr head_list;
+	int head_x, head_y, head_pos;
+	int fixed_cnt = 0;
+	GlyphPtr *head_glyphs;
+	GlyphListPtr cur_list = list;
+	RegionRec list_region;
+	RegionRec current_region;
+	BoxRec current_box;
+
+	if (nlist > 1) {
+		pixman_region_init(&list_region);
+		need_free_list_region = TRUE;
+	}
+
+	pixman_region_init(&current_region);
+
+	extents = pixman_region_extents(&current_region);
+
+	x = 0;
+	y = 0;
+	x1 = x2 = y1 = y2 = 0;
+	n = 0;
+	extents->x1 = 0;
+	extents->y1 = 0;
+	extents->x2 = 0;
+	extents->y2 = 0;
+
+	head_list = list;
+	DEBUGF("has %d lists.\n", nlist);
+	while (nlist--) {
+		BoxRec left_box, right_box = {0};
+		Bool has_left_edge_box = FALSE, has_right_edge_box = FALSE;
+		Bool left_to_right;
+		struct glamor_glyph *left_priv = NULL, *right_priv = NULL;
+
+		x += list->xOff;
+		y += list->yOff;
+		n = list->len;
+		left_to_right = TRUE;
+		cur_list = list++;
+
+		if (unlikely(!first_list)) {
+			pixman_region_init_with_extents(&current_region, extents);
+			pixman_region_union(&list_region, &list_region, &current_region);
+			first = TRUE;
+		} else {
+			head_list = cur_list;
+			head_pos = cur_list->len - n;
+			head_x = x;
+			head_y = y;
+			head_glyphs = glyphs;
+		}
+
+		DEBUGF("current list %p has %d glyphs\n", cur_list, n);
+		while (n--) {
+			GlyphPtr glyph = *glyphs++;
+
+			DEBUGF("the %dth glyph\n", cur_list->len - n - 1);
+			if (glyph->info.width == 0
+			    || glyph->info.height == 0) {
+				x += glyph->info.xOff;
+				y += glyph->info.yOff;
+				continue;
+			}
+			if (mask_format
+			    && mask_format != GlyphPicture(glyph)[screen->myNum]->format) {
+				need_free_fixed_list = TRUE;
+				goto done;
+			}
+
+			x1 = x - glyph->info.x;
+			if (x1 < MINSHORT)
+				x1 = MINSHORT;
+			y1 = y - glyph->info.y;
+			if (y1 < MINSHORT)
+				y1 = MINSHORT;
+			if (check_fake_overlap)
+				priv = glamor_glyph_get_private(glyph);
+
+			x2 = x1 + glyph->info.width;
+			y2 = y1 + glyph->info.height;
+
+			if (x2 > MAXSHORT)
+				x2 = MAXSHORT;
+			if (y2 > MAXSHORT)
+				y2 = MAXSHORT;
+
+			if (first) {
+				extents->x1 = x1;
+				extents->y1 = y1;
+				extents->x2 = x2;
+				extents->y2 = y2;
+
+				prev_extents = *extents;
+
+				first = FALSE;
+				if (check_fake_overlap && priv
+				    && priv->has_edge_map && glyph->info.yOff == 0) {
+					left_box.x1 = x1;
+					left_box.x2 = x1 + 1;
+					left_box.y1 = y1;
+
+					right_box.x1 = x2 - 2;
+					right_box.x2 = x2 - 1;
+					right_box.y1 = y1;
+					left_priv = right_priv = priv;
+					has_left_edge_box = TRUE;
+					has_right_edge_box = TRUE;
+				}
+			} else {
+				if (unlikely(!first_list)) {
+					current_box.x1 = x1;
+					current_box.y1 = y1;
+					current_box.x2 = x2;
+					current_box.y2 = y2;
+					if (pixman_region_contains_rectangle(&list_region, &current_box) != PIXMAN_REGION_OUT) {
+						need_free_fixed_list = TRUE;
+						goto done;
+					}
+				}
+
+				if (x1 < extents->x2 && x2 > extents->x1
+				    && y1 < extents->y2
+				    && y2 > extents->y1) {
+
+					if (check_fake_overlap && (has_left_edge_box || has_right_edge_box)
+					    && priv->has_edge_map && glyph->info.yOff == 0) {
+						int left_dx, right_dx;
+						unsigned long long intersected;
+
+						left_dx = has_left_edge_box ? 1 : 0;
+						right_dx = has_right_edge_box ? 1 : 0;
+						if (x1 + 1 < extents->x2 - right_dx && x2 - 1 > extents->x1 + left_dx)
+							goto real_intersected;
+
+						if (left_to_right && has_right_edge_box) {
+							if (x1 == right_box.x1) {
+								intersected = ((priv->left_x1_map & right_priv->right_x1_map)
+										| (priv->left_x2_map & right_priv->right_x2_map));
+								if (intersected)
+									goto real_intersected;
+							} else if (x1 == right_box.x2) {
+								intersected = (priv->left_x1_map & right_priv->right_x2_map);
+								if (intersected) {
+								#ifdef  GLYPHS_EDEGE_OVERLAP_LOOSE_CHECK
+								/* tolerate with two pixels overlap. */
+									intersected &= ~(1<<__fls(intersected));
+									if ((intersected & (intersected - 1)))
+								#endif
+										goto real_intersected;
+								}
+							}
+						} else if (!left_to_right && has_left_edge_box) {
+							if (x2 - 1 == left_box.x1) {
+								intersected = (priv->right_x2_map & left_priv->left_x1_map);
+								if (intersected) {
+								#ifdef  GLYPHS_EDEGE_OVERLAP_LOOSE_CHECK
+								/* tolerate with two pixels overlap. */
+									intersected &= ~(1<<__fls(intersected));
+									if ((intersected & (intersected - 1)))
+								#endif
+										goto real_intersected;
+								}
+							} else if (x2 - 1 == right_box.x2) {
+								if ((priv->right_x1_map & left_priv->left_x1_map)
+								   || (priv->right_x2_map & left_priv->left_x2_map))
+									goto real_intersected;
+							}
+						} else {
+							if (x1 < extents->x2 && x1 + 2 > extents->x1)
+								goto real_intersected;
+						}
+						goto non_intersected;
+					} else {
+real_intersected:
+						DEBUGF("overlap with previous glyph.\n");
+						if (in_non_intersected_list == 1) {
+							if (fixed_cnt >= fixed_size) {
+								need_free_fixed_list = TRUE;
+								goto done;
+							}
+							if (!glyph_new_fixed_list(&fixed_list[fixed_cnt],
+									     glyphs - 1,
+									     &head_glyphs,
+									     cur_list,
+									     cur_list->len - (n + 1), x, y,
+									     x1, y1, x2, y2,
+									     &head_list,
+									     &head_pos,
+									     &head_x,
+									     &head_y, &fixed_cnt,
+									     NON_INTERSECTED,
+									     &prev_extents
+									     )){
+								need_free_fixed_list = TRUE;
+								goto done;
+							}
+						}
+
+						in_non_intersected_list = 0;
+
+					}
+				} else {
+non_intersected:
+					DEBUGF("doesn't overlap with previous glyph.\n");
+					if (in_non_intersected_list == 0) {
+						if (fixed_cnt >= fixed_size) {
+							need_free_fixed_list = TRUE;
+							goto done;
+						}
+						if (!glyph_new_fixed_list(&fixed_list[fixed_cnt],
+								     glyphs - 1,
+								     &head_glyphs,
+								     cur_list,
+								     cur_list->len - (n + 1), x, y,
+								     x1, y1, x2, y2,
+								     &head_list,
+								     &head_pos,
+								     &head_x,
+								     &head_y, &fixed_cnt,
+								     INTERSECTED,
+								     &prev_extents
+								     )) {
+							need_free_fixed_list = TRUE;
+							goto done;
+						}
+					}
+					in_non_intersected_list = 1;
+				}
+				prev_extents = *extents;
+			}
+
+			if (check_fake_overlap && priv
+			    && priv->has_edge_map && glyph->info.yOff == 0) {
+				if (!has_left_edge_box || x1 < extents->x1) {
+					left_box.x1 = x1;
+					left_box.x2 = x1 + 1;
+					left_box.y1 = y1;
+					has_left_edge_box = TRUE;
+					left_priv = priv;
+				}
+
+				if (!has_right_edge_box || x2 > extents->x2) {
+					right_box.x1 = x2 - 2;
+					right_box.x2 = x2 - 1;
+					right_box.y1 = y1;
+					has_right_edge_box = TRUE;
+					right_priv = priv;
+				}
+			}
+
+			if (x1 < extents->x1)
+				extents->x1 = x1;
+			if (x2 > extents->x2)
+				extents->x2 = x2;
+
+			if (y1 < extents->y1)
+				extents->y1 = y1;
+			if (y2 > extents->y2)
+				extents->y2 = y2;
+
+			x += glyph->info.xOff;
+			y += glyph->info.yOff;
+		}
+		first_list = FALSE;
+	}
+
+	if (in_non_intersected_list == 0 && fixed_cnt == 0) {
+		fixed_cnt = -1;
+		goto done;
+	}
+
+	if ((in_non_intersected_list != -1
+		|| head_pos != n) && (fixed_cnt > 0)) {
+		if (fixed_cnt >= fixed_size) {
+			need_free_fixed_list = TRUE;
+			goto done;
+		}
+		if (!glyph_new_fixed_list(&fixed_list[fixed_cnt],
+				     glyphs - 1,
+				     &head_glyphs,
+				     cur_list,
+				     cur_list->len - (n + 1), x, y,
+				     x1, y1, x2, y2,
+				     &head_list,
+				     &head_pos,
+				     &head_x,
+				     &head_y, &fixed_cnt,
+				     (!in_non_intersected_list) | 0x80,
+				     &prev_extents
+				     )) {
+			need_free_fixed_list = TRUE;
+			goto done;
+		}
+	}
+
+done:
+	if (need_free_list_region)
+		pixman_region_fini(&list_region);
+	pixman_region_fini(&current_region);
+
+	if (need_free_fixed_list && fixed_cnt >= 0) {
+		while(fixed_cnt--) {
+			free(fixed_list[fixed_cnt].list);
+		}
+	}
+
+	DEBUGF("Got %d fixed list \n", fixed_cnt);
+	return fixed_cnt;
+}
+
+static inline unsigned int
+glamor_glyph_size_to_count(int size)
+{
+	size /= GLYPH_MIN_SIZE;
+	return size * size;
+}
+
+static inline unsigned int
+glamor_glyph_count_to_mask(int count)
+{
+	return ~(count - 1);
+}
+
+static inline unsigned int
+glamor_glyph_size_to_mask(int size)
+{
+	return
+	    glamor_glyph_count_to_mask(glamor_glyph_size_to_count(size));
+}
+
+static PicturePtr
+glamor_glyph_cache(glamor_screen_private *glamor, GlyphPtr glyph, int *out_x,
+		   int *out_y)
+{
+	ScreenPtr screen = glamor->screen;
+	PicturePtr glyph_picture = GlyphPicture(glyph)[screen->myNum];
+	glamor_glyph_cache_t *cache =
+	    &glamor->glyphCaches[PICT_FORMAT_RGB(glyph_picture->format) !=
+				 0];
+	struct glamor_glyph *priv = NULL, *evicted_priv = NULL;
+	int size, mask, pos, s;
+
+	if (glyph->info.width > GLYPH_MAX_SIZE
+	    || glyph->info.height > GLYPH_MAX_SIZE)
+		return NULL;
+
+	for (size = GLYPH_MIN_SIZE; size <= GLYPH_MAX_SIZE; size *= 2)
+		if (glyph->info.width <= size
+		    && glyph->info.height <= size)
+			break;
+
+	s = glamor_glyph_size_to_count(size);
+	mask = glamor_glyph_count_to_mask(s);
+	pos = (cache->count + s - 1) & mask;
+
+	priv = glamor_glyph_get_private(glyph);
+	if (pos < GLYPH_CACHE_SIZE) {
+		cache->count = pos + s;
+	} else {
+		for (s = size; s <= GLYPH_MAX_SIZE; s *= 2) {
+			int i =
+			    cache->evict & glamor_glyph_size_to_mask(s);
+			GlyphPtr evicted = cache->glyphs[i];
+			if (evicted == NULL)
+				continue;
+
+			evicted_priv = glamor_glyph_get_private(evicted);
+			assert(evicted_priv->pos == i);
+			if (evicted_priv->size >= s) {
+				cache->glyphs[i] = NULL;
+				evicted_priv->cached = FALSE;
+				pos = cache->evict &
+				    glamor_glyph_size_to_mask(size);
+			} else
+				evicted_priv = NULL;
+			break;
+		}
+		if (evicted_priv == NULL) {
+			int count = glamor_glyph_size_to_count(size);
+			mask = glamor_glyph_count_to_mask(count);
+			pos = cache->evict & mask;
+			for (s = 0; s < count; s++) {
+				GlyphPtr evicted = cache->glyphs[pos + s];
+				if (evicted != NULL) {
+
+					evicted_priv =
+					    glamor_glyph_get_private
+					    (evicted);
+
+					assert(evicted_priv->pos == pos + s);
+					evicted_priv->cached = FALSE;
+					cache->glyphs[pos + s] = NULL;
+				}
+			}
+
+		}
+		/* And pick a new eviction position */
+		cache->evict = rand() % GLYPH_CACHE_SIZE;
+	}
+
+
+	cache->glyphs[pos] = glyph;
+
+	priv->cache = cache;
+	priv->size = size;
+	priv->pos = pos;
+	s = pos / ((GLYPH_MAX_SIZE / GLYPH_MIN_SIZE) *
+		   (GLYPH_MAX_SIZE / GLYPH_MIN_SIZE));
+	priv->x =
+	    s % (CACHE_PICTURE_SIZE / GLYPH_MAX_SIZE) * GLYPH_MAX_SIZE;
+	priv->y =
+	    (s / (CACHE_PICTURE_SIZE / GLYPH_MAX_SIZE)) * GLYPH_MAX_SIZE;
+	for (s = GLYPH_MIN_SIZE; s < GLYPH_MAX_SIZE; s *= 2) {
+		if (pos & 1)
+			priv->x += s;
+		if (pos & 2)
+			priv->y += s;
+		pos >>= 2;
+	}
+
+	glamor_glyph_cache_upload_glyph(screen, cache, glyph, priv->x,
+					priv->y);
+#ifndef GLYPHS_NO_EDEGEMAP_OVERLAP_CHECK
+	if (priv->has_edge_map == FALSE && glyph->info.width >= 2)
+		glamor_glyph_priv_get_edge_map(glyph, priv, glyph_picture);
+#endif
+	priv->cached = TRUE;
+
+	*out_x = priv->x;
+	*out_y = priv->y;
+	return cache->picture;
+}
+typedef void (*glyphs_flush_func)(void * arg);
+struct glyphs_flush_dst_arg {
+	CARD8 op;
+	PicturePtr src;
+	PicturePtr dst;
+	glamor_glyph_buffer_t * buffer;
+	int x_src,y_src;
+	int x_dst, y_dst;
+};
+
+static struct glyphs_flush_dst_arg dst_arg;
+static struct glyphs_flush_mask_arg mask_arg;
+static glamor_glyph_buffer_t dst_buffer;
+static glamor_glyph_buffer_t mask_buffer;
+unsigned long long mask_glyphs_cnt = 0;
+unsigned long long dst_glyphs_cnt = 0;
+#define GLYPHS_DST_MODE_VIA_MASK		0
+#define GLYPHS_DST_MODE_VIA_MASK_CACHE		1
+#define GLYPHS_DST_MODE_TO_DST			2
+#define GLYPHS_DST_MODE_MASK_TO_DST		3
+
+struct glyphs_flush_mask_arg {
+	PicturePtr mask;
+	glamor_glyph_buffer_t *buffer;
+	struct glamor_glyph_mask_cache *maskcache;
+	unsigned int used_bitmap;
+};
+
+static void
+glamor_glyphs_flush_mask(struct glyphs_flush_mask_arg *arg)
+{
+	if (arg->buffer->count>0) {
+#ifdef RENDER
+	glamor_composite_glyph_rects(PictOpAdd, arg->buffer->source,
+				     NULL, arg->mask,
+				     arg->buffer->count,
+				     arg->buffer->rects);
+#endif
+	}
+	arg->buffer->count = 0;
+	arg->buffer->source = NULL;
+
+}
+
+static void
+glamor_glyphs_flush_dst(struct glyphs_flush_dst_arg * arg)
+{
+	if (!arg->buffer)
+		return;
+
+	if (mask_buffer.count > 0) {
+		glamor_glyphs_flush_mask(&mask_arg);
+	}
+	if (mask_arg.used_bitmap) {
+		put_mask_cache_bitmap(mask_arg.maskcache, mask_arg.used_bitmap);
+		mask_arg.used_bitmap = 0;
+	}
+
+	if (arg->buffer->count > 0) {
+		glamor_composite_glyph_rects(arg->op, arg->src,
+					arg->buffer->source, arg->dst,
+					arg->buffer->count,
+					&arg->buffer->rects[0]);
+		arg->buffer->count = 0;
+		arg->buffer->source = NULL;
+	}
+}
+
+
+static glamor_glyph_cache_result_t
+glamor_buffer_glyph(glamor_screen_private *glamor_priv,
+		    glamor_glyph_buffer_t * buffer,
+		    PictFormatShort format,
+		    GlyphPtr glyph, struct glamor_glyph *priv,
+		    int x_glyph, int y_glyph,
+		    int dx, int dy, int w, int h,
+		    int glyphs_dst_mode,
+		    glyphs_flush_func glyphs_flush, void *flush_arg)
+{
+	ScreenPtr screen = glamor_priv->screen;
+	glamor_composite_rect_t *rect;
+	PicturePtr source;
+	int x, y;
+	glamor_glyph_cache_t *cache;
+
+	if (glyphs_dst_mode != GLYPHS_DST_MODE_MASK_TO_DST)
+		priv = glamor_glyph_get_private(glyph);
+
+	if (PICT_FORMAT_BPP(format) == 1)
+		format = PICT_a8;
+
+	cache =
+	    &glamor_priv->glyphCaches[PICT_FORMAT_RGB(format) != 0];
+
+	if (buffer->source
+	    && buffer->source != cache->picture
+	    && glyphs_flush) {
+		(*glyphs_flush)(flush_arg);
+		glyphs_flush = NULL;
+	}
+
+	if (buffer->count == GLYPH_BUFFER_SIZE
+	    && glyphs_flush) {
+		(*glyphs_flush)(flush_arg);
+		glyphs_flush = NULL;
+	}
+
+	if (priv && priv->cached) {
+		rect = &buffer->rects[buffer->count++];
+		rect->x_src = priv->x + dx;
+		rect->y_src = priv->y + dy;
+		if (buffer->source == NULL)
+			buffer->source = priv->cache->picture;
+		if (glyphs_dst_mode <= GLYPHS_DST_MODE_VIA_MASK_CACHE)
+			assert(priv->cache->glyphs[priv->pos] == glyph);
+	} else {
+		assert(glyphs_dst_mode != GLYPHS_DST_MODE_MASK_TO_DST);
+		if (glyphs_flush)
+			(*glyphs_flush)(flush_arg);
+		source = glamor_glyph_cache(glamor_priv, glyph, &x, &y);
+
+		if (source != NULL) {
+			rect = &buffer->rects[buffer->count++];
+			rect->x_src = x + dx;
+			rect->y_src = y + dy;
+			if (buffer->source == NULL)
+				buffer->source = source;
+			if (glyphs_dst_mode == GLYPHS_DST_MODE_VIA_MASK_CACHE) {
+				glamor_gl_dispatch *dispatch;
+				/* mode 1 means we are using global mask cache,
+				 * thus we have to composite from the cache picture
+				 * to the cache picture, we need a flush here to make
+				 * sure latter we get the corret glyphs data.*/
+				dispatch = glamor_get_dispatch(glamor_priv);
+				dispatch->glFlush();
+				glamor_put_dispatch(glamor_priv);
+			}
+		} else {
+	/* Couldn't find the glyph in the cache, use the glyph picture directly */
+			source = GlyphPicture(glyph)[screen->myNum];
+			if (buffer->source
+			    && buffer->source != source
+			    && glyphs_flush)
+				(*glyphs_flush)(flush_arg);
+			buffer->source = source;
+
+			rect = &buffer->rects[buffer->count++];
+			rect->x_src = 0 + dx;
+			rect->y_src = 0 + dy;
+		}
+		priv = glamor_glyph_get_private(glyph);
+	}
+
+	rect->x_dst = x_glyph;
+	rect->y_dst = y_glyph;
+	if (glyphs_dst_mode != GLYPHS_DST_MODE_MASK_TO_DST) {
+		rect->x_dst -= glyph->info.x;
+		rect->y_dst -= glyph->info.y;
+	}
+	rect->width = w;
+	rect->height = h;
+	if (glyphs_dst_mode > GLYPHS_DST_MODE_VIA_MASK_CACHE) {
+		rect->x_mask = rect->x_src;
+		rect->y_mask = rect->y_src;
+		rect->x_src = dst_arg.x_src + rect->x_dst - dst_arg.x_dst;
+		rect->y_src = dst_arg.y_src + rect->y_dst - dst_arg.y_dst;
+	}
+
+	return GLAMOR_GLYPH_SUCCESS;
+}
+
+
+static void
+glamor_buffer_glyph_clip(glamor_screen_private *glamor_priv,
+			 BoxPtr rects,
+			 int nrect, PictFormatShort format,
+			 GlyphPtr glyph, struct glamor_glyph *priv,
+			 int glyph_x, int glyph_y,
+			 int glyph_dx, int glyph_dy,
+			 int width, int height,
+			 int glyphs_mode,
+			 glyphs_flush_func flush_func,
+			 void *arg
+			 )
+{
+	int i;
+	for (i = 0; i < nrect; i++) {
+		int dst_x, dst_y;
+		int dx, dy;
+		int x2, y2;
+
+		dst_x = glyph_x - glyph_dx;
+		dst_y = glyph_y - glyph_dy;
+		x2 = dst_x + width;
+		y2 = dst_y + height;
+		dx = dy = 0;
+		if (rects[i].y1 >= y2)
+			break;
+
+		if (dst_x < rects[i].x1)
+			dx = rects[i].x1 - dst_x, dst_x = rects[i].x1;
+		if (x2 > rects[i].x2)
+			x2 = rects[i].x2;
+		if (dst_y < rects[i].y1)
+			dy = rects[i].y1 - dst_y, dst_y = rects[i].y1;
+		if (y2 > rects[i].y2)
+			y2 = rects[i].y2;
+		if (dst_x < x2 && dst_y < y2) {
+
+			glamor_buffer_glyph(glamor_priv,
+					    &dst_buffer,
+					    format,
+					    glyph, priv,
+					    dst_x + glyph_dx,
+					    dst_y + glyph_dy,
+					    dx, dy,
+					    x2 - dst_x, y2 - dst_y,
+			    		    glyphs_mode,
+					    flush_func,
+					    arg);
+		}
+	}
+}
+
+
+static void
+glamor_glyphs_via_mask(CARD8 op,
+		       PicturePtr src,
+		       PicturePtr dst,
+		       PictFormatPtr mask_format,
+		       INT16 x_src,
+		       INT16 y_src,
+		       int nlist, GlyphListPtr list, GlyphPtr * glyphs,
+		       Bool use_mask_cache)
+{
+	PixmapPtr mask_pixmap = 0;
+	PicturePtr mask;
+	ScreenPtr screen = dst->pDrawable->pScreen;
+	int width = 0, height = 0;
+	int x, y;
+	int x_dst = list->xOff, y_dst = list->yOff;
+	int n;
+	GlyphPtr glyph;
+	int error;
+	BoxRec extents = { 0, 0, 0, 0 };
+	XID component_alpha;
+	glamor_screen_private *glamor_priv;
+	int need_free_mask = FALSE;
+	glamor_glyph_buffer_t buffer;
+	struct glyphs_flush_mask_arg arg;
+	glamor_glyph_buffer_t *pmask_buffer;
+	struct glyphs_flush_mask_arg *pmask_arg;
+	struct glamor_glyph_mask_cache_entry *mce = NULL;
+	struct glamor_glyph_mask_cache *maskcache;
+	glamor_glyph_cache_t *cache;
+	int glyphs_dst_mode;
+
+	glamor_glyph_extents(nlist, list, glyphs, &extents);
+
+	if (extents.x2 <= extents.x1 || extents.y2 <= extents.y1)
+		return;
+	glamor_priv = glamor_get_screen_private(screen);
+	width = extents.x2 - extents.x1;
+	height = extents.y2 - extents.y1;
+
+	if (mask_format->depth == 1) {
+		PictFormatPtr a8Format =
+		    PictureMatchFormat(screen, 8, PICT_a8);
+
+		if (a8Format)
+			mask_format = a8Format;
+	}
+
+	cache = &glamor_priv->glyphCaches
+			[PICT_FORMAT_RGB(mask_format->format) != 0];
+	maskcache = mask_cache[PICT_FORMAT_RGB(mask_format->format) != 0];
+
+	x = -extents.x1;
+	y = -extents.y1;
+	if (!use_mask_cache
+	    || width > (CACHE_PICTURE_SIZE/4)
+	    || height > MASK_CACHE_MAX_SIZE) {
+new_mask_pixmap:
+		mask_pixmap = glamor_create_pixmap(screen, width, height,
+						   mask_format->depth,
+						   CREATE_PIXMAP_USAGE_SCRATCH);
+		if (!mask_pixmap) {
+			glamor_destroy_pixmap(mask_pixmap);
+			return;
+		}
+		glamor_solid(mask_pixmap, 0, 0, width, height, GXcopy, 0xFFFFFFFF, 0);
+		component_alpha = NeedsComponent(mask_format->format);
+		mask = CreatePicture(0, &mask_pixmap->drawable,
+				     mask_format, CPComponentAlpha,
+				     &component_alpha, serverClient, &error);
+		if (!mask)
+			return;
+		need_free_mask = TRUE;
+		pmask_arg = &arg;
+		pmask_buffer = &buffer;
+		pmask_buffer->count = 0;
+		pmask_buffer->source = NULL;
+		pmask_arg->used_bitmap = 0;
+		glyphs_dst_mode = GLYPHS_DST_MODE_VIA_MASK;
+	} else {
+		int retry_cnt = 0;
+retry:
+	   	mce = get_mask_cache(maskcache,
+				     (width + MASK_CACHE_MAX_SIZE - 1) / MASK_CACHE_MAX_SIZE);
+
+		if (mce == NULL) {
+			glamor_glyphs_flush_dst(&dst_arg);
+			retry_cnt++;
+			if (retry_cnt > 2) {
+				assert(0);
+				goto new_mask_pixmap;
+			}
+			goto retry;
+		}
+
+		mask = cache->picture;
+		x += mce->x;
+		y += mce->y;
+		mce->width = (width + MASK_CACHE_MAX_SIZE - 1) / MASK_CACHE_MAX_SIZE;
+		mce->height = 1;
+		if (mask_arg.mask && mask_arg.mask != mask
+			&& mask_buffer.count != 0)
+			glamor_glyphs_flush_dst(&dst_arg);
+		pmask_arg = &mask_arg;
+		pmask_buffer = &mask_buffer;
+		pmask_arg->maskcache = maskcache;
+		glyphs_dst_mode = GLYPHS_DST_MODE_VIA_MASK_CACHE;
+	}
+	pmask_arg->mask = mask;
+	pmask_arg->buffer = pmask_buffer;
+	while (nlist--) {
+		x += list->xOff;
+		y += list->yOff;
+		n = list->len;
+		mask_glyphs_cnt += n;
+		while (n--) {
+			glyph = *glyphs++;
+			if (glyph->info.width > 0
+			    && glyph->info.height > 0) {
+				glyphs_flush_func flush_func;
+				void *temp_arg;
+				if (need_free_mask) {
+					if (pmask_buffer->count)
+						flush_func = (glyphs_flush_func)glamor_glyphs_flush_mask;
+					else
+						flush_func = NULL;
+					temp_arg = pmask_arg;
+				} else {
+					/* If we are using global mask cache, then we need to
+					 * flush dst instead of mask. As some dst depends on the
+					 * previous mask result. Just flush mask can't get all previous's
+					 * overlapped glyphs.*/
+					if (dst_buffer.count || mask_buffer.count)
+						flush_func = (glyphs_flush_func)glamor_glyphs_flush_dst;
+					else
+						flush_func = NULL;
+					temp_arg = &dst_arg;
+				}
+				glamor_buffer_glyph(glamor_priv, pmask_buffer,
+						    mask_format->format,
+						    glyph, NULL, x, y,
+						    0, 0,
+						    glyph->info.width, glyph->info.height,
+						    glyphs_dst_mode,
+						    flush_func,
+						    (void*)temp_arg);
+			}
+			x += glyph->info.xOff;
+			y += glyph->info.yOff;
+		}
+		list++;
+	}
+
+	x = extents.x1;
+	y = extents.y1;
+	if (need_free_mask) {
+		glamor_glyphs_flush_mask(pmask_arg);
+		CompositePicture(op,
+				 src,
+				 mask,
+				 dst,
+				 x_src + x - x_dst,
+				 y_src + y - y_dst, 0, 0, x, y, width, height);
+		FreePicture(mask, 0);
+		glamor_destroy_pixmap(mask_pixmap);
+	} else {
+		struct glamor_glyph priv;
+		glyphs_flush_func flush_func;
+		BoxPtr rects;
+		int nrect;
+
+		priv.cache = cache;
+		priv.x = mce->x;
+		priv.y = mce->y;
+		priv.cached = TRUE;
+		rects = REGION_RECTS(dst->pCompositeClip);
+		nrect = REGION_NUM_RECTS(dst->pCompositeClip);
+
+		pmask_arg->used_bitmap |= ((1 << mce->width) - 1) << mce->idx;
+		dst_arg.op = op;
+		dst_arg.src = src;
+		dst_arg.dst = dst;
+		dst_arg.buffer = &dst_buffer;
+		dst_arg.x_src = x_src;
+		dst_arg.y_src = y_src;
+		dst_arg.x_dst = x_dst;
+		dst_arg.y_dst = y_dst;
+
+		if (dst_buffer.source == NULL) {
+			dst_buffer.source = cache->picture;
+		} else if (dst_buffer.source != cache->picture) {
+			glamor_glyphs_flush_dst(&dst_arg);
+			dst_buffer.source = cache->picture;
+		}
+
+		x += dst->pDrawable->x;
+		y += dst->pDrawable->y;
+
+		if (dst_buffer.count || mask_buffer.count)
+			flush_func = (glyphs_flush_func)glamor_glyphs_flush_dst;
+		else
+			flush_func = NULL;
+
+		glamor_buffer_glyph_clip(glamor_priv,
+					 rects, nrect,
+					 mask_format->format,
+					 NULL, &priv,
+					 x, y,
+					 0, 0,
+					 width, height,
+					 GLYPHS_DST_MODE_MASK_TO_DST,
+					 flush_func,
+					 (void *)&dst_arg
+					 );
+	}
+}
+
+static void
+glamor_glyphs_to_dst(CARD8 op,
+		     PicturePtr src,
+		     PicturePtr dst,
+		     INT16 x_src,
+		     INT16 y_src,
+		     int nlist, GlyphListPtr list,
+		     GlyphPtr * glyphs)
+{
+	ScreenPtr screen = dst->pDrawable->pScreen;
+	int x = 0, y = 0;
+	int x_dst = list->xOff, y_dst = list->yOff;
+	int n;
+	GlyphPtr glyph;
+	BoxPtr rects;
+	int nrect;
+	glamor_screen_private *glamor_priv;
+
+	rects = REGION_RECTS(dst->pCompositeClip);
+	nrect = REGION_NUM_RECTS(dst->pCompositeClip);
+
+	glamor_priv = glamor_get_screen_private(screen);
+
+	dst_arg.op = op;
+	dst_arg.src = src;
+	dst_arg.dst = dst;
+	dst_arg.buffer = &dst_buffer;
+	dst_arg.x_src = x_src;
+	dst_arg.y_src = y_src;
+	dst_arg.x_dst = x_dst;
+	dst_arg.y_dst = y_dst;
+
+	x = dst->pDrawable->x;
+	y = dst->pDrawable->y;
+
+	while (nlist--) {
+		x += list->xOff;
+		y += list->yOff;
+		n = list->len;
+		dst_glyphs_cnt += n;
+		while (n--) {
+			glyph = *glyphs++;
+
+			if (glyph->info.width > 0
+			    && glyph->info.height > 0) {
+				glyphs_flush_func flush_func;
+
+				if (dst_buffer.count || mask_buffer.count)
+					flush_func = (glyphs_flush_func)glamor_glyphs_flush_dst;
+				else
+					flush_func = NULL;
+				glamor_buffer_glyph_clip(glamor_priv,
+							 rects, nrect,
+							 (GlyphPicture(glyph)[screen->myNum])->format,
+							 glyph, NULL,
+							 x, y,
+							 glyph->info.x, glyph->info.y,
+							 glyph->info.width, glyph->info.height,
+							 GLYPHS_DST_MODE_TO_DST,
+							 flush_func,
+							 (void *)&dst_arg
+							 );
+			}
+
+			x += glyph->info.xOff;
+			y += glyph->info.yOff;
+		}
+		list++;
+	}
+}
+#define MAX_FIXED_SIZE
+static void
+glamor_glyphs_reset_buffer(glamor_glyph_buffer_t *buffer)
+{
+	buffer->count = 0;
+	buffer->source = NULL;
+}
+
+static Bool
+_glamor_glyphs(CARD8 op,
+	       PicturePtr src,
+	       PicturePtr dst,
+	       PictFormatPtr mask_format,
+	       INT16 x_src,
+	       INT16 y_src, int nlist, GlyphListPtr list,
+	       GlyphPtr * glyphs, Bool fallback)
+{
+	PictFormatShort format;
+	int fixed_size, fixed_cnt = 0;
+	struct glamor_glyph_list *fixed_list = NULL;
+	Bool need_free_list = FALSE;
+#ifndef GLYPHS_NO_EDEGEMAP_OVERLAP_CHECK
+	Bool check_fake_overlap = TRUE;
+	if (!(op == PictOpOver
+	    || op == PictOpAdd
+	    || op == PictOpXor)) {
+	/* C = (0,0,0,0) D = glyphs , SRC = A, DEST = B (faked overlapped glyphs, overlapped with (0,0,0,0)).
+	 * For those op, (A IN (C ADD D)) OP B !=  (A IN D) OP ((A IN C) OP B)
+	 *		or (A IN (D ADD C)) OP B != (A IN C) OP ((A IN D) OP B)
+	 * We need to split the faked regions to three or two, and composite the disoverlapped small
+	 * boxes one by one. For other Ops, it's safe to composite the whole box.  */
+		check_fake_overlap = FALSE;
+	}
+#else
+	Bool check_fake_overlap = FALSE;
+#endif
+	if (mask_format)
+		format = mask_format->depth << 24 | mask_format->format;
+	else
+		format = 0;
+
+	fixed_size = 32;
+	glamor_glyphs_reset_buffer(&dst_buffer);
+
+	if (!mask_format || (((nlist == 1 && list->len == 1) || op == PictOpAdd)
+	    && (dst->format == ((mask_format->depth << 24) | mask_format->format)))) {
+		glamor_glyphs_to_dst(op, src, dst, x_src, y_src, nlist,
+				     list, glyphs);
+		goto last_flush;
+	}
+
+	glamor_glyphs_reset_buffer(&mask_buffer);
+
+	/* We have mask_format. Need to check the real overlap or not.*/
+	format = mask_format->depth << 24 | mask_format->format;
+
+	fixed_list = calloc(fixed_size, sizeof(*fixed_list));
+	if (unlikely(fixed_list == NULL))
+		fixed_size = 0;
+	fixed_cnt = glamor_glyphs_intersect(nlist, list, glyphs,
+				format, dst->pDrawable->pScreen,
+				check_fake_overlap,
+				fixed_list, fixed_size);
+	if (fixed_cnt == 0)
+		mask_format = NULL;
+	need_free_list = TRUE;
+
+	if (fixed_cnt <= 0) {
+		if (mask_format == NULL) {
+			glamor_glyphs_to_dst(op, src, dst, x_src, y_src, nlist,
+					     list, glyphs);
+			goto last_flush;
+		} else {
+			glamor_glyphs_via_mask(op, src, dst, mask_format,
+					       x_src, y_src, nlist, list, glyphs,
+					       FALSE);
+			goto free_fixed_list;
+		}
+	} else {
+
+		/* We have splitted the original list to serval list, some are overlapped
+		 * and some are non-overlapped. For the non-overlapped, we render it to
+		 * dst directly. For the overlapped, we render it to mask picture firstly,
+		 * then render the mask to dst. If we can use mask cache which is in the
+		 * glyphs cache's last row, we can accumulate the rendering of mask to dst
+		 * with the other dst_buffer's rendering operations thus can reduce the call
+		 * of glDrawElements.
+		 *
+		 * */
+		struct glamor_glyph_list *saved_list;
+
+		saved_list = fixed_list;
+		mask_arg.used_bitmap = 0;
+		while(fixed_cnt--) {
+			if (fixed_list->type == NON_INTERSECTED) {
+				glamor_glyphs_to_dst(op, src, dst,
+						     x_src, y_src,
+						     fixed_list->nlist,
+						     fixed_list->list,
+						     fixed_list->glyphs);
+			}
+			else
+				glamor_glyphs_via_mask(op, src, dst,
+						       mask_format, x_src, y_src,
+						       fixed_list->nlist,
+						       fixed_list->list,
+						       fixed_list->glyphs, TRUE);
+
+			free(fixed_list->list);
+			fixed_list++;
+		}
+		free(saved_list);
+		need_free_list = FALSE;
+	}
+
+last_flush:
+	if (dst_buffer.count || mask_buffer.count)
+		glamor_glyphs_flush_dst(&dst_arg);
+free_fixed_list:
+	if(need_free_list) {
+		assert(fixed_cnt <= 0);
+		free(fixed_list);
+	}
+	return TRUE;
+}
+
+void
+glamor_glyphs(CARD8 op,
+	      PicturePtr src,
+	      PicturePtr dst,
+	      PictFormatPtr mask_format,
+	      INT16 x_src,
+	      INT16 y_src, int nlist, GlyphListPtr list, GlyphPtr * glyphs)
+{
+	_glamor_glyphs(op, src, dst, mask_format, x_src,
+		       y_src, nlist, list, glyphs, TRUE);
+}
+
+Bool
+glamor_glyphs_nf(CARD8 op,
+		 PicturePtr src,
+		 PicturePtr dst,
+		 PictFormatPtr mask_format,
+		 INT16 x_src,
+		 INT16 y_src, int nlist,
+		 GlyphListPtr list, GlyphPtr * glyphs)
+{
+	return _glamor_glyphs(op, src, dst, mask_format, x_src,
+			      y_src, nlist, list, glyphs, FALSE);
+}
+
diff --git a/glamor/glamor_gradient.c b/glamor/glamor_gradient.c
new file mode 100644
index 000000000..4abc82d74
--- /dev/null
+++ b/glamor/glamor_gradient.c
@@ -0,0 +1,1584 @@
+/*
+ * Copyright © 2009 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ *
+ * Authors:
+ *    Junyan He <junyan.he@linux.intel.com>
+ *
+ */
+
+/** @file glamor_gradient.c
+ *
+ * Gradient acceleration implementation
+ */
+
+#include "glamor_priv.h"
+
+#ifdef RENDER
+
+#define LINEAR_SMALL_STOPS (6 + 2)
+#define LINEAR_LARGE_STOPS (16 + 2)
+
+#define RADIAL_SMALL_STOPS (6 + 2)
+#define RADIAL_LARGE_STOPS (16 + 2)
+
+#ifdef GLAMOR_GRADIENT_SHADER
+
+static GLint
+_glamor_create_getcolor_fs_program(ScreenPtr screen, int stops_count, int use_array)
+{
+	glamor_screen_private *glamor_priv;
+	glamor_gl_dispatch *dispatch;
+
+	char *gradient_fs = NULL;
+	GLint fs_getcolor_prog;
+
+	#define gradient_fs_getcolor\
+	    GLAMOR_DEFAULT_PRECISION\
+	    "uniform int n_stop;\n"\
+	    "uniform float stops[%d];\n"\
+	    "uniform vec4 stop_colors[%d];\n"\
+	    "vec4 get_color(float stop_len)\n"\
+	    "{\n"\
+	    "    int i = 0;\n"\
+	    "    float new_alpha; \n"\
+	    "    vec4 gradient_color;\n"\
+	    "    float percentage; \n"\
+	    "    for(i = 0; i < n_stop - 1; i++) {\n"\
+	    "        if(stop_len < stops[i])\n"\
+	    "            break; \n"\
+	    "    }\n"\
+	    "    \n"\
+	    "    if(stops[i] - stops[i-1] > 2.0)\n"\
+	    "        percentage = 0.0;\n" /*For comply with pixman, walker->stepper overflow.*/\
+	    "    else if(stops[i] - stops[i-1] < 0.000001)\n"\
+	    "        percentage = 0.0;\n"\
+	    "    else \n"\
+	    "        percentage = (stop_len - stops[i-1])/(stops[i] - stops[i-1]);\n"\
+	    "    new_alpha = percentage * stop_colors[i].a + \n"\
+	    "                       (1.0-percentage) * stop_colors[i-1].a; \n"\
+	    "    gradient_color = vec4((percentage * stop_colors[i].rgb \n"\
+	    "                          + (1.0-percentage) * stop_colors[i-1].rgb)*new_alpha, \n"\
+	    "                          new_alpha);\n"\
+	    "    \n"\
+	    "    return gradient_color;\n"\
+	    "}\n"
+
+	/* Because the array access for shader is very slow, the performance is very low
+	   if use array. So use global uniform to replace for it if the number of n_stops is small.*/
+	const char *gradient_fs_getcolor_no_array =
+	    GLAMOR_DEFAULT_PRECISION
+	    "uniform int n_stop;\n"
+	    "uniform float stop0;\n"
+	    "uniform float stop1;\n"
+	    "uniform float stop2;\n"
+	    "uniform float stop3;\n"
+	    "uniform float stop4;\n"
+	    "uniform float stop5;\n"
+	    "uniform float stop6;\n"
+	    "uniform float stop7;\n"
+	    "uniform vec4 stop_color0;\n"
+	    "uniform vec4 stop_color1;\n"
+	    "uniform vec4 stop_color2;\n"
+	    "uniform vec4 stop_color3;\n"
+	    "uniform vec4 stop_color4;\n"
+	    "uniform vec4 stop_color5;\n"
+	    "uniform vec4 stop_color6;\n"
+	    "uniform vec4 stop_color7;\n"
+	    "\n"
+	    "vec4 get_color(float stop_len)\n"
+	    "{\n"
+	    "    float stop_after;\n"
+	    "    float stop_before;\n"
+	    "    vec4 stop_color_before;\n"
+	    "    vec4 stop_color_after;\n"
+	    "    float new_alpha; \n"
+	    "    vec4 gradient_color;\n"
+	    "    float percentage; \n"
+	    "    \n"
+	    "    if((stop_len < stop0) && (n_stop >= 1)) {\n"
+	    "        stop_color_before = stop_color0;\n"
+	    "        stop_color_after = stop_color0;\n"
+	    "        stop_after = stop0;\n"
+	    "        stop_before = stop0;\n"
+	    "    } else if((stop_len < stop1) && (n_stop >= 2)) {\n"
+	    "        stop_color_before = stop_color0;\n"
+	    "        stop_color_after = stop_color1;\n"
+	    "        stop_after = stop1;\n"
+	    "        stop_before = stop0;\n"
+	    "    } else if((stop_len < stop2) && (n_stop >= 3)) {\n"
+	    "        stop_color_before = stop_color1;\n"
+	    "        stop_color_after = stop_color2;\n"
+	    "        stop_after = stop2;\n"
+	    "        stop_before = stop1;\n"
+	    "    } else if((stop_len < stop3) && (n_stop >= 4)){\n"
+	    "        stop_color_before = stop_color2;\n"
+	    "        stop_color_after = stop_color3;\n"
+	    "        stop_after = stop3;\n"
+	    "        stop_before = stop2;\n"
+	    "    } else if((stop_len < stop4) && (n_stop >= 5)){\n"
+	    "        stop_color_before = stop_color3;\n"
+	    "        stop_color_after = stop_color4;\n"
+	    "        stop_after = stop4;\n"
+	    "        stop_before = stop3;\n"
+	    "    } else if((stop_len < stop5) && (n_stop >= 6)){\n"
+	    "        stop_color_before = stop_color4;\n"
+	    "        stop_color_after = stop_color5;\n"
+	    "        stop_after = stop5;\n"
+	    "        stop_before = stop4;\n"
+	    "    } else if((stop_len < stop6) && (n_stop >= 7)){\n"
+	    "        stop_color_before = stop_color5;\n"
+	    "        stop_color_after = stop_color6;\n"
+	    "        stop_after = stop6;\n"
+	    "        stop_before = stop5;\n"
+	    "    } else if((stop_len < stop7) && (n_stop >= 8)){\n"
+	    "        stop_color_before = stop_color6;\n"
+	    "        stop_color_after = stop_color7;\n"
+	    "        stop_after = stop7;\n"
+	    "        stop_before = stop6;\n"
+	    "    } else {\n"
+	    "        stop_color_before = stop_color7;\n"
+	    "        stop_color_after = stop_color7;\n"
+	    "        stop_after = stop7;\n"
+	    "        stop_before = stop7;\n"
+	    "    }\n"
+	    "    if(stop_after - stop_before > 2.0)\n"
+	    "        percentage = 0.0;\n"//For comply with pixman, walker->stepper overflow.
+	    "    else if(stop_after - stop_before < 0.000001)\n"
+	    "        percentage = 0.0;\n"
+	    "    else \n"
+	    "        percentage = (stop_len - stop_before)/(stop_after - stop_before);\n"
+	    "    new_alpha = percentage * stop_color_after.a + \n"
+	    "                       (1.0-percentage) * stop_color_before.a; \n"
+	    "    gradient_color = vec4((percentage * stop_color_after.rgb \n"
+	    "                          + (1.0-percentage) * stop_color_before.rgb)*new_alpha, \n"
+	    "                          new_alpha);\n"
+	    "    \n"
+	    "    return gradient_color;\n"
+	    "}\n";
+
+	glamor_priv = glamor_get_screen_private(screen);
+	dispatch = glamor_get_dispatch(glamor_priv);
+
+	if(use_array) {
+		XNFasprintf(&gradient_fs,
+		    gradient_fs_getcolor, stops_count, stops_count);
+		fs_getcolor_prog = glamor_compile_glsl_prog(dispatch, GL_FRAGMENT_SHADER,
+		                                            gradient_fs);
+		free(gradient_fs);
+	} else {
+		fs_getcolor_prog = glamor_compile_glsl_prog(dispatch, GL_FRAGMENT_SHADER,
+		                                            gradient_fs_getcolor_no_array);
+	}
+
+	return fs_getcolor_prog;
+}
+
+static void
+_glamor_create_radial_gradient_program(ScreenPtr screen, int stops_count, int dyn_gen)
+{
+	glamor_screen_private *glamor_priv;
+	glamor_gl_dispatch *dispatch;
+	int index;
+
+	GLint gradient_prog = 0;
+	char *gradient_fs = NULL;
+	GLint fs_main_prog, fs_getcolor_prog, vs_prog;
+
+	const char *gradient_vs =
+	    GLAMOR_DEFAULT_PRECISION
+	    "attribute vec4 v_position;\n"
+	    "attribute vec4 v_texcoord;\n"
+	    "varying vec2 source_texture;\n"
+	    "\n"
+	    "void main()\n"
+	    "{\n"
+	    "    gl_Position = v_position;\n"
+	    "    source_texture = v_texcoord.xy;\n"
+	    "}\n";
+
+	/*
+	 *     Refer to pixman radial gradient.
+	 *
+	 *     The problem is given the two circles of c1 and c2 with the radius of r1 and
+	 *     r1, we need to caculate the t, which is used to do interpolate with stops,
+	 *     using the fomula:
+	 *     length((1-t)*c1 + t*c2 - p) = (1-t)*r1 + t*r2
+	 *     expand the fomula with xy coond, get the following:
+	 *     sqrt(sqr((1-t)*c1.x + t*c2.x - p.x) + sqr((1-t)*c1.y + t*c2.y - p.y))
+	 *           = (1-t)r1 + t*r2
+	 *     <====> At*t- 2Bt + C = 0
+	 *     where A = sqr(c2.x - c1.x) + sqr(c2.y - c1.y) - sqr(r2 -r1)
+	 *           B = (p.x - c1.x)*(c2.x - c1.x) + (p.y - c1.y)*(c2.y - c1.y) + r1*(r2 -r1)
+	 *           C = sqr(p.x - c1.x) + sqr(p.y - c1.y) - r1*r1
+	 *
+	 *     solve the fomula and we get the result of
+	 *     t = (B + sqrt(B*B - A*C)) / A  or
+	 *     t = (B - sqrt(B*B - A*C)) / A  (quadratic equation have two solutions)
+	 *
+	 *     The solution we are going to prefer is the bigger one, unless the
+	 *     radius associated to it is negative (or it falls outside the valid t range)
+	 */
+
+	#define gradient_radial_fs_template\
+	    GLAMOR_DEFAULT_PRECISION\
+	    "uniform mat3 transform_mat;\n"\
+	    "uniform int repeat_type;\n"\
+	    "uniform float A_value;\n"\
+	    "uniform vec2 c1;\n"\
+	    "uniform float r1;\n"\
+	    "uniform vec2 c2;\n"\
+	    "uniform float r2;\n"\
+	    "varying vec2 source_texture;\n"\
+	    "\n"\
+	    "vec4 get_color(float stop_len);\n"\
+	    "\n"\
+	    "int t_invalid;\n"\
+	    "\n"\
+	    "float get_stop_len()\n"\
+	    "{\n"\
+	    "    float t = 0.0;\n"\
+	    "    float sqrt_value;\n"\
+	    "    int revserse = 0;\n"\
+	    "    t_invalid = 0;\n"\
+	    "    \n"\
+	    "    vec3 tmp = vec3(source_texture.x, source_texture.y, 1.0);\n"\
+	    "    vec3 source_texture_trans = transform_mat * tmp;\n"\
+	    "    source_texture_trans.xy = source_texture_trans.xy/source_texture_trans.z;\n"\
+	    "    float B_value = (source_texture_trans.x - c1.x) * (c2.x - c1.x)\n"\
+	    "                     + (source_texture_trans.y - c1.y) * (c2.y - c1.y)\n"\
+	    "                     + r1 * (r2 - r1);\n"\
+	    "    float C_value = (source_texture_trans.x - c1.x) * (source_texture_trans.x - c1.x)\n"\
+	    "                     + (source_texture_trans.y - c1.y) * (source_texture_trans.y - c1.y)\n"\
+	    "                     - r1*r1;\n"\
+	    "    if(abs(A_value) < 0.00001) {\n"\
+	    "        if(B_value == 0.0) {\n"\
+	    "            t_invalid = 1;\n"\
+	    "            return t;\n"\
+	    "        }\n"\
+	    "        t = 0.5 * C_value / B_value;"\
+	    "    } else {\n"\
+	    "        sqrt_value = B_value * B_value - A_value * C_value;\n"\
+	    "        if(sqrt_value < 0.0) {\n"\
+	    "            t_invalid = 1;\n"\
+	    "            return t;\n"\
+	    "        }\n"\
+	    "        sqrt_value = sqrt(sqrt_value);\n"\
+	    "        t = (B_value + sqrt_value) / A_value;\n"\
+	    "    }\n"\
+	    "    if(repeat_type == %d) {\n" /* RepeatNone case. */\
+	    "        if((t <= 0.0) || (t > 1.0))\n"\
+	    /*           try another if first one invalid*/\
+	    "            t = (B_value - sqrt_value) / A_value;\n"\
+	    "        \n"\
+	    "        if((t <= 0.0) || (t > 1.0)) {\n" /*still invalid, return.*/\
+	    "            t_invalid = 1;\n"\
+	    "            return t;\n"\
+	    "        }\n"\
+	    "    } else {\n"\
+	    "        if(t * (r2 - r1) <= -1.0 * r1)\n"\
+	    /*           try another if first one invalid*/\
+	    "            t = (B_value - sqrt_value) / A_value;\n"\
+	    "        \n"\
+	    "        if(t * (r2 -r1) <= -1.0 * r1) {\n" /*still invalid, return.*/\
+	    "            t_invalid = 1;\n"\
+	    "            return t;\n"\
+	    "        }\n"\
+	    "    }\n"\
+	    "    \n"\
+	    "    if(repeat_type == %d){\n" /* repeat normal*/\
+	    "        while(t > 1.0) \n"\
+	    "            t = t - 1.0; \n"\
+	    "        while(t < 0.0) \n"\
+	    "            t = t + 1.0; \n"\
+	    "    }\n"\
+	    "    \n"\
+	    "    if(repeat_type == %d) {\n" /* repeat reflect*/\
+	    "        while(t > 1.0) {\n"\
+	    "            t = t - 1.0; \n"\
+	    "            if(revserse == 0)\n"\
+	    "                revserse = 1;\n"\
+	    "            else\n"\
+	    "                revserse = 0;\n"\
+	    "        }\n"\
+	    "        while(t < 0.0) {\n"\
+	    "            t = t + 1.0; \n"\
+	    "            if(revserse == 0)\n"\
+	    "                revserse = 1;\n"\
+	    "            else\n"\
+	    "                revserse = 0;\n"\
+	    "        }\n"\
+	    "        if(revserse == 1) {\n"\
+	    "            t = 1.0 - t; \n"\
+	    "        }\n"\
+	    "    }\n"\
+	    "    \n"\
+	    "    return t;\n"\
+	    "}\n"\
+	    "\n"\
+	    "void main()\n"\
+	    "{\n"\
+	    "    float stop_len = get_stop_len();\n"\
+	    "    if(t_invalid == 1) {\n"\
+	    "        gl_FragColor = vec4(0.0, 0.0, 0.0, 0.0);\n"\
+	    "    } else {\n"\
+	    "        gl_FragColor = get_color(stop_len);\n"\
+	    "    }\n"\
+	    "}\n"
+
+	glamor_priv = glamor_get_screen_private(screen);
+
+	if ((glamor_priv->radial_max_nstops >= stops_count) && (dyn_gen)) {
+		/* Very Good, not to generate again. */
+		return;
+	}
+
+	dispatch = glamor_get_dispatch(glamor_priv);
+
+	if (dyn_gen && glamor_priv->gradient_prog[SHADER_GRADIENT_RADIAL][2]) {
+		dispatch->glDeleteShader(
+		    glamor_priv->radial_gradient_shaders[SHADER_GRADIENT_VS_PROG][2]);
+		glamor_priv->radial_gradient_shaders[SHADER_GRADIENT_VS_PROG][2] = 0;
+
+		dispatch->glDeleteShader(
+		    glamor_priv->radial_gradient_shaders[SHADER_GRADIENT_FS_MAIN_PROG][2]);
+		glamor_priv->radial_gradient_shaders[SHADER_GRADIENT_FS_MAIN_PROG][2] = 0;
+
+		dispatch->glDeleteShader(
+		    glamor_priv->radial_gradient_shaders[SHADER_GRADIENT_FS_GETCOLOR_PROG][2]);
+		glamor_priv->radial_gradient_shaders[SHADER_GRADIENT_FS_GETCOLOR_PROG][2] = 0;
+
+		dispatch->glDeleteProgram(glamor_priv->gradient_prog[SHADER_GRADIENT_RADIAL][2]);
+		glamor_priv->gradient_prog[SHADER_GRADIENT_RADIAL][2] = 0;
+	}
+
+	gradient_prog = dispatch->glCreateProgram();
+
+	vs_prog = glamor_compile_glsl_prog(dispatch,
+	                                   GL_VERTEX_SHADER, gradient_vs);
+
+	XNFasprintf(&gradient_fs,
+	            gradient_radial_fs_template,
+	            PIXMAN_REPEAT_NONE, PIXMAN_REPEAT_NORMAL, PIXMAN_REPEAT_REFLECT);
+
+	fs_main_prog = glamor_compile_glsl_prog(dispatch,
+	                                        GL_FRAGMENT_SHADER, gradient_fs);
+
+	free(gradient_fs);
+
+	fs_getcolor_prog =
+	    _glamor_create_getcolor_fs_program(screen, stops_count, (stops_count > 0));
+
+	dispatch->glAttachShader(gradient_prog, vs_prog);
+	dispatch->glAttachShader(gradient_prog, fs_getcolor_prog);
+	dispatch->glAttachShader(gradient_prog, fs_main_prog);
+
+	dispatch->glBindAttribLocation(gradient_prog, GLAMOR_VERTEX_POS, "v_positionsition");
+	dispatch->glBindAttribLocation(gradient_prog, GLAMOR_VERTEX_SOURCE, "v_texcoord");
+
+	glamor_link_glsl_prog(dispatch, gradient_prog);
+
+	dispatch->glUseProgram(0);
+
+	if (dyn_gen) {
+		index = 2;
+		glamor_priv->radial_max_nstops = stops_count;
+	} else if (stops_count) {
+		index = 1;
+	} else {
+		index = 0;
+	}
+
+	glamor_priv->gradient_prog[SHADER_GRADIENT_RADIAL][index] = gradient_prog;
+	glamor_priv->radial_gradient_shaders[SHADER_GRADIENT_VS_PROG][index] = vs_prog;
+	glamor_priv->radial_gradient_shaders[SHADER_GRADIENT_FS_MAIN_PROG][index] = fs_main_prog;
+	glamor_priv->radial_gradient_shaders[SHADER_GRADIENT_FS_GETCOLOR_PROG][index] = fs_getcolor_prog;
+
+	glamor_put_dispatch(glamor_priv);
+}
+
+static void
+_glamor_create_linear_gradient_program(ScreenPtr screen, int stops_count, int dyn_gen)
+{
+	glamor_screen_private *glamor_priv;
+	glamor_gl_dispatch *dispatch;
+
+	int index = 0;
+	GLint gradient_prog = 0;
+	char *gradient_fs = NULL;
+	GLint fs_main_prog, fs_getcolor_prog, vs_prog;
+
+	const char *gradient_vs =
+	    GLAMOR_DEFAULT_PRECISION
+	    "attribute vec4 v_position;\n"
+	    "attribute vec4 v_texcoord;\n"
+	    "varying vec2 source_texture;\n"
+	    "\n"
+	    "void main()\n"
+	    "{\n"
+	    "    gl_Position = v_position;\n"
+	    "    source_texture = v_texcoord.xy;\n"
+	    "}\n";
+
+	/*
+	 *                                      |
+	 *                                      |\
+	 *                                      | \
+	 *                                      |  \
+	 *                                      |   \
+	 *                                      |\   \
+	 *                                      | \   \
+	 *     cos_val =                        |\ p1d \   /
+	 *      sqrt(1/(slope*slope+1.0))  ------>\ \   \ /
+	 *                                      |  \ \   \
+	 *                                      |   \ \ / \
+	 *                                      |    \ *Pt1\
+	 *         *p1                          |     \     \     *P
+	 *          \                           |    / \     \   /
+	 *           \                          |   /   \     \ /
+	 *            \                         |       pd     \
+	 *             \                        |         \   / \
+	 *            p2*                       |          \ /   \       /
+	 *        slope = (p2.y - p1.y) /       |           /     p2d   /
+	 *                    (p2.x - p1.x)     |          /       \   /
+	 *                                      |         /         \ /
+	 *                                      |        /           /
+	 *                                      |       /           /
+	 *                                      |      /           *Pt2
+	 *                                      |                 /
+	 *                                      |                /
+	 *                                      |               /
+	 *                                      |              /
+	 *                                      |             /
+	 *                               -------+---------------------------------
+	 *                                     O|
+	 *                                      |
+	 *                                      |
+	 *
+	 *	step 1: compute the distance of p, pt1 and pt2 in the slope direction.
+	 *		Caculate the distance on Y axis first and multiply cos_val to
+	 *		get the value on slope direction(pd, p1d and p2d represent the
+	 *		distance of p, pt1, and pt2 respectively).
+	 *
+	 *	step 2: caculate the percentage of (pd - p1d)/(p2d - p1d).
+	 *		If (pd - p1d) > (p2d - p1d) or < 0, then sub or add (p2d - p1d)
+	 *		to make it in the range of [0, (p2d - p1d)].
+	 *
+	 *	step 3: compare the percentage to every stop and find the stpos just
+	 *		before and after it. Use the interpolation fomula to compute RGBA.
+	 */
+
+	#define gradient_fs_template	\
+	    GLAMOR_DEFAULT_PRECISION\
+	    "uniform mat3 transform_mat;\n"\
+	    "uniform int repeat_type;\n"\
+	    "uniform int hor_ver;\n"\
+	    "uniform float pt_slope;\n"\
+	    "uniform float cos_val;\n"\
+	    "uniform float p1_distance;\n"\
+	    "uniform float pt_distance;\n"\
+	    "varying vec2 source_texture;\n"\
+	    "\n"\
+	    "vec4 get_color(float stop_len);\n"\
+	    "\n"\
+	    "float get_stop_len()\n"\
+	    "{\n"\
+	    "    vec3 tmp = vec3(source_texture.x, source_texture.y, 1.0);\n"\
+	    "    float len_percentage;\n"\
+	    "    float distance;\n"\
+	    "    float _p1_distance;\n"\
+	    "    float _pt_distance;\n"\
+	    "    float y_dist;\n"\
+	    "    float stop_after;\n"\
+	    "    float stop_before;\n"\
+	    "    vec4 stop_color_before;\n"\
+	    "    vec4 stop_color_after;\n"\
+	    "    float new_alpha; \n"\
+	    "    int revserse = 0;\n"\
+	    "    vec4 gradient_color;\n"\
+	    "    float percentage; \n"\
+	    "    vec3 source_texture_trans = transform_mat * tmp;\n"\
+	    "    \n"\
+	    "    if(hor_ver == 0) { \n" /*Normal case.*/\
+	    "        y_dist = source_texture_trans.y - source_texture_trans.x*pt_slope;\n"\
+	    "        distance = y_dist * cos_val;\n"\
+	    "        _p1_distance = p1_distance * source_texture_trans.z;\n"\
+	    "        _pt_distance = pt_distance * source_texture_trans.z;\n"\
+	    "        \n"\
+	    "    } else if (hor_ver == 1) {\n"/*horizontal case.*/\
+	    "        distance = source_texture_trans.x;\n"\
+	    "        _p1_distance = p1_distance * source_texture_trans.z;\n"\
+	    "        _pt_distance = pt_distance * source_texture_trans.z;\n"\
+	    "    } \n"\
+	    "    \n"\
+	    "    distance = distance - _p1_distance; \n"\
+	    "    \n"\
+	    "    if(repeat_type == %d){\n" /* repeat normal*/\
+	    "        while(distance > _pt_distance) \n"\
+	    "            distance = distance - (_pt_distance); \n"\
+	    "        while(distance < 0.0) \n"\
+	    "            distance = distance + (_pt_distance); \n"\
+	    "    }\n"\
+	    "    \n"\
+	    "    if(repeat_type == %d) {\n" /* repeat reflect*/\
+	    "        while(distance > _pt_distance) {\n"\
+	    "            distance = distance - (_pt_distance); \n"\
+	    "            if(revserse == 0)\n"\
+	    "                revserse = 1;\n"\
+	    "            else\n"\
+	    "                revserse = 0;\n"\
+	    "        }\n"\
+	    "        while(distance < 0.0) {\n"\
+	    "            distance = distance + (_pt_distance); \n"\
+	    "            if(revserse == 0)\n"\
+	    "                revserse = 1;\n"\
+	    "            else\n"\
+	    "                revserse = 0;\n"\
+	    "        }\n"\
+	    "        if(revserse == 1) {\n"\
+	    "            distance = (_pt_distance) - distance; \n"\
+	    "        }\n"\
+	    "    }\n"\
+	    "    \n"\
+	    "    len_percentage = distance/(_pt_distance);\n"\
+	    "    \n"\
+	    "    return len_percentage;\n"\
+	    "}\n"\
+	    "\n"\
+	    "void main()\n"\
+	    "{\n"\
+	    "    float stop_len = get_stop_len();\n"\
+	    "    gl_FragColor = get_color(stop_len);\n"\
+	    "}\n"
+
+	glamor_priv = glamor_get_screen_private(screen);
+
+	if ((glamor_priv->linear_max_nstops >= stops_count) && (dyn_gen)) {
+		/* Very Good, not to generate again. */
+		return;
+	}
+
+	dispatch = glamor_get_dispatch(glamor_priv);
+	if (dyn_gen && glamor_priv->gradient_prog[SHADER_GRADIENT_LINEAR][2]) {
+		dispatch->glDeleteShader(
+		    glamor_priv->linear_gradient_shaders[SHADER_GRADIENT_VS_PROG][2]);
+		glamor_priv->linear_gradient_shaders[SHADER_GRADIENT_VS_PROG][2] = 0;
+
+		dispatch->glDeleteShader(
+		    glamor_priv->linear_gradient_shaders[SHADER_GRADIENT_FS_MAIN_PROG][2]);
+		glamor_priv->linear_gradient_shaders[SHADER_GRADIENT_FS_MAIN_PROG][2] = 0;
+
+		dispatch->glDeleteShader(
+		    glamor_priv->linear_gradient_shaders[SHADER_GRADIENT_FS_GETCOLOR_PROG][2]);
+		glamor_priv->linear_gradient_shaders[SHADER_GRADIENT_FS_GETCOLOR_PROG][2] = 0;
+
+		dispatch->glDeleteProgram(glamor_priv->gradient_prog[SHADER_GRADIENT_LINEAR][2]);
+		glamor_priv->gradient_prog[SHADER_GRADIENT_LINEAR][2] = 0;
+	}
+
+	gradient_prog = dispatch->glCreateProgram();
+
+	vs_prog = glamor_compile_glsl_prog(dispatch,
+	                                   GL_VERTEX_SHADER, gradient_vs);
+
+	XNFasprintf(&gradient_fs,
+	            gradient_fs_template,
+	            PIXMAN_REPEAT_NORMAL, PIXMAN_REPEAT_REFLECT);
+
+	fs_main_prog = glamor_compile_glsl_prog(dispatch,
+	                                        GL_FRAGMENT_SHADER, gradient_fs);
+	free(gradient_fs);
+
+	fs_getcolor_prog =
+	    _glamor_create_getcolor_fs_program(screen, stops_count, (stops_count > 0));
+
+	dispatch->glAttachShader(gradient_prog, vs_prog);
+	dispatch->glAttachShader(gradient_prog, fs_getcolor_prog);
+	dispatch->glAttachShader(gradient_prog, fs_main_prog);
+
+	dispatch->glBindAttribLocation(gradient_prog, GLAMOR_VERTEX_POS, "v_position");
+	dispatch->glBindAttribLocation(gradient_prog, GLAMOR_VERTEX_SOURCE, "v_texcoord");
+
+	glamor_link_glsl_prog(dispatch, gradient_prog);
+
+	dispatch->glUseProgram(0);
+
+	if (dyn_gen) {
+		index = 2;
+		glamor_priv->linear_max_nstops = stops_count;
+	} else if (stops_count) {
+		index = 1;
+	} else {
+		index = 0;
+	}
+
+	glamor_priv->gradient_prog[SHADER_GRADIENT_LINEAR][index] = gradient_prog;
+	glamor_priv->linear_gradient_shaders[SHADER_GRADIENT_VS_PROG][index] = vs_prog;
+	glamor_priv->linear_gradient_shaders[SHADER_GRADIENT_FS_MAIN_PROG][index] = fs_main_prog;
+	glamor_priv->linear_gradient_shaders[SHADER_GRADIENT_FS_GETCOLOR_PROG][index] = fs_getcolor_prog;
+
+	glamor_put_dispatch(glamor_priv);
+}
+
+void
+glamor_init_gradient_shader(ScreenPtr screen)
+{
+	glamor_screen_private *glamor_priv;
+	int i;
+
+	glamor_priv = glamor_get_screen_private(screen);
+
+	for (i = 0; i < 3; i++) {
+		glamor_priv->gradient_prog[SHADER_GRADIENT_LINEAR][i] = 0;
+		glamor_priv->linear_gradient_shaders[SHADER_GRADIENT_VS_PROG][i] = 0;
+		glamor_priv->linear_gradient_shaders[SHADER_GRADIENT_FS_MAIN_PROG][i] = 0;
+		glamor_priv->linear_gradient_shaders[SHADER_GRADIENT_FS_GETCOLOR_PROG][i] = 0;
+
+		glamor_priv->gradient_prog[SHADER_GRADIENT_RADIAL][i] = 0;
+		glamor_priv->radial_gradient_shaders[SHADER_GRADIENT_VS_PROG][i] = 0;
+		glamor_priv->radial_gradient_shaders[SHADER_GRADIENT_FS_MAIN_PROG][i] = 0;
+		glamor_priv->radial_gradient_shaders[SHADER_GRADIENT_FS_GETCOLOR_PROG][i] = 0;
+	}
+	glamor_priv->linear_max_nstops = 0;
+	glamor_priv->radial_max_nstops = 0;
+
+	_glamor_create_linear_gradient_program(screen, 0, 0);
+	_glamor_create_linear_gradient_program(screen, LINEAR_LARGE_STOPS, 0);
+
+	_glamor_create_radial_gradient_program(screen, 0, 0);
+	_glamor_create_radial_gradient_program(screen, RADIAL_LARGE_STOPS, 0);
+}
+
+void
+glamor_fini_gradient_shader(ScreenPtr screen)
+{
+	glamor_screen_private *glamor_priv;
+	glamor_gl_dispatch *dispatch;
+	int i = 0;
+
+	glamor_priv = glamor_get_screen_private(screen);
+	dispatch = glamor_get_dispatch(glamor_priv);
+
+	for (i = 0; i < 3; i++) {
+		/* Linear Gradient */
+		if (glamor_priv->linear_gradient_shaders[SHADER_GRADIENT_VS_PROG][i])
+			dispatch->glDeleteShader(
+			    glamor_priv->linear_gradient_shaders[SHADER_GRADIENT_VS_PROG][i]);
+
+		if (glamor_priv->linear_gradient_shaders[SHADER_GRADIENT_FS_MAIN_PROG][i])
+			dispatch->glDeleteShader(
+			    glamor_priv->linear_gradient_shaders[SHADER_GRADIENT_FS_MAIN_PROG][i]);
+
+		if (glamor_priv->linear_gradient_shaders[SHADER_GRADIENT_FS_GETCOLOR_PROG][i])
+			dispatch->glDeleteShader(
+			    glamor_priv->linear_gradient_shaders[SHADER_GRADIENT_FS_GETCOLOR_PROG][i]);
+
+		if (glamor_priv->gradient_prog[SHADER_GRADIENT_LINEAR][i])
+			dispatch->glDeleteProgram(glamor_priv->gradient_prog[SHADER_GRADIENT_LINEAR][i]);
+
+		/* Radial Gradient */
+		if (glamor_priv->radial_gradient_shaders[SHADER_GRADIENT_VS_PROG][i])
+			dispatch->glDeleteShader(
+			    glamor_priv->radial_gradient_shaders[SHADER_GRADIENT_VS_PROG][i]);
+
+		if (glamor_priv->radial_gradient_shaders[SHADER_GRADIENT_FS_MAIN_PROG][i])
+			dispatch->glDeleteShader(
+			    glamor_priv->radial_gradient_shaders[SHADER_GRADIENT_FS_MAIN_PROG][i]);
+
+		if (glamor_priv->radial_gradient_shaders[SHADER_GRADIENT_FS_GETCOLOR_PROG][i])
+			dispatch->glDeleteShader(
+			    glamor_priv->radial_gradient_shaders[SHADER_GRADIENT_FS_GETCOLOR_PROG][i]);
+
+		if (glamor_priv->gradient_prog[SHADER_GRADIENT_RADIAL][i])
+			dispatch->glDeleteProgram(glamor_priv->gradient_prog[SHADER_GRADIENT_RADIAL][i]);
+	}
+
+	glamor_put_dispatch(glamor_priv);
+}
+
+static void
+_glamor_gradient_convert_trans_matrix(PictTransform *from, float to[3][3],
+				      int width, int height, int normalize)
+{
+	/*
+	 * Because in the shader program, we normalize all the pixel cood to [0, 1],
+	 * so with the transform matrix, the correct logic should be:
+	 * v_s = A*T*v
+	 * v_s: point vector in shader after normalized.
+	 * A: The transition matrix from   width X height --> 1.0 X 1.0
+	 * T: The transform matrix.
+	 * v: point vector in width X height space.
+	 *
+	 * result is OK if we use this fomula. But for every point in width X height space,
+	 * we can just use their normalized point vector in shader, namely we can just
+	 * use the result of A*v in shader. So we have no chance to insert T in A*v.
+	 * We can just convert v_s = A*T*v to v_s = A*T*inv(A)*A*v, where inv(A) is the
+	 * inverse matrix of A. Now, v_s = (A*T*inv(A)) * (A*v)
+	 * So, to get the correct v_s, we need to cacula1 the matrix: (A*T*inv(A)), and
+	 * we name this matrix T_s.
+	 *
+	 * Firstly, because A is for the scale convertion, we find
+	 *      --         --
+	 *      |1/w  0   0 |
+	 * A =  | 0  1/h  0 |
+	 *      | 0   0  1.0|
+	 *      --         --
+	 * so T_s = A*T*inv(a) and result
+	 *
+	 *       --                      --
+	 *       | t11      h*t12/w  t13/w|
+	 * T_s = | w*t21/h  t22      t23/h|
+	 *       | w*t31    h*t32    t33  |
+	 *       --                      --
+	 */
+
+	to[0][0] = (float)pixman_fixed_to_double(from->matrix[0][0]);
+	to[0][1] = (float)pixman_fixed_to_double(from->matrix[0][1])
+	                        * (normalize ? (((float)height) / ((float)width)) : 1.0);
+	to[0][2] = (float)pixman_fixed_to_double(from->matrix[0][2])
+	                        / (normalize ? ((float)width) : 1.0);
+
+	to[1][0] = (float)pixman_fixed_to_double(from->matrix[1][0])
+	                        * (normalize ? (((float)width) / ((float)height)) : 1.0);
+	to[1][1] = (float)pixman_fixed_to_double(from->matrix[1][1]);
+	to[1][2] = (float)pixman_fixed_to_double(from->matrix[1][2])
+	                        / (normalize ? ((float)height) : 1.0);
+
+	to[2][0] = (float)pixman_fixed_to_double(from->matrix[2][0])
+	                        * (normalize ? ((float)width) : 1.0);
+	to[2][1] = (float)pixman_fixed_to_double(from->matrix[2][1])
+	                        * (normalize ? ((float)height) : 1.0);
+	to[2][2] = (float)pixman_fixed_to_double(from->matrix[2][2]);
+
+	DEBUGF("the transform matrix is:\n%f\t%f\t%f\n%f\t%f\t%f\n%f\t%f\t%f\n",
+	       to[0][0], to[0][1], to[0][2],
+	       to[1][0], to[1][1], to[1][2],
+	       to[2][0], to[2][1], to[2][2]);
+}
+
+static int
+_glamor_gradient_set_pixmap_destination(ScreenPtr screen,
+                                        glamor_screen_private *glamor_priv,
+                                        PicturePtr dst_picture,
+                                        GLfloat *xscale, GLfloat *yscale,
+                                        int x_source, int y_source,
+                                        float vertices[8],
+                                        float tex_vertices[8],
+					int tex_normalize)
+{
+	glamor_pixmap_private *pixmap_priv;
+	PixmapPtr pixmap = NULL;
+	glamor_gl_dispatch *dispatch = NULL;
+
+	pixmap = glamor_get_drawable_pixmap(dst_picture->pDrawable);
+	pixmap_priv = glamor_get_pixmap_private(pixmap);
+
+	if (!GLAMOR_PIXMAP_PRIV_HAS_FBO(pixmap_priv)) { /* should always have here. */
+		return 0;
+	}
+
+	glamor_set_destination_pixmap_priv_nc(pixmap_priv);
+
+	pixmap_priv_get_dest_scale(pixmap_priv, xscale, yscale);
+
+	DEBUGF("xscale = %f, yscale = %f,"
+	       " x_source = %d, y_source = %d, width = %d, height = %d\n",
+	       *xscale, *yscale, x_source, y_source,
+	       dst_picture->pDrawable->width, dst_picture->pDrawable->height);
+
+	glamor_set_normalize_vcoords_tri_strip(*xscale, *yscale,
+	                  0, 0,
+	                  (INT16)(dst_picture->pDrawable->width),
+	                  (INT16)(dst_picture->pDrawable->height),
+	                  glamor_priv->yInverted, vertices);
+
+	if (tex_normalize) {
+		glamor_set_normalize_tcoords_tri_stripe(*xscale, *yscale,
+		                x_source, y_source,
+		                (INT16)(dst_picture->pDrawable->width + x_source),
+		                (INT16)(dst_picture->pDrawable->height + y_source),
+		                glamor_priv->yInverted, tex_vertices);
+	} else {
+		glamor_set_tcoords_tri_strip((INT16)(dst_picture->pDrawable->width),
+		                 (INT16)(dst_picture->pDrawable->height),
+		                 x_source, y_source,
+		                 (INT16)(dst_picture->pDrawable->width) + x_source,
+		                 (INT16)(dst_picture->pDrawable->height) + y_source,
+		                 glamor_priv->yInverted, tex_vertices);
+	}
+
+	DEBUGF("vertices --> leftup : %f X %f, rightup: %f X %f,"
+	       "rightbottom: %f X %f, leftbottom : %f X %f\n",
+	       vertices[0], vertices[1], vertices[2], vertices[3],
+	       vertices[4], vertices[5], vertices[6], vertices[7]);
+	DEBUGF("tex_vertices --> leftup : %f X %f, rightup: %f X %f,"
+	       "rightbottom: %f X %f, leftbottom : %f X %f\n",
+	       tex_vertices[0], tex_vertices[1], tex_vertices[2], tex_vertices[3],
+	       tex_vertices[4], tex_vertices[5], tex_vertices[6], tex_vertices[7]);
+
+	dispatch = glamor_get_dispatch(glamor_priv);
+
+	dispatch->glVertexAttribPointer(GLAMOR_VERTEX_POS, 2, GL_FLOAT,
+					GL_FALSE, 0, vertices);
+	dispatch->glVertexAttribPointer(GLAMOR_VERTEX_SOURCE, 2, GL_FLOAT,
+					GL_FALSE, 0, tex_vertices);
+
+	dispatch->glEnableVertexAttribArray(GLAMOR_VERTEX_POS);
+	dispatch->glEnableVertexAttribArray(GLAMOR_VERTEX_SOURCE);
+
+	glamor_put_dispatch(glamor_priv);
+
+	return 1;
+}
+
+static int
+_glamor_gradient_set_stops(PicturePtr src_picture, PictGradient * pgradient,
+        GLfloat *stop_colors, GLfloat *n_stops)
+{
+	int i;
+	int count = 1;
+
+	for (i = 0; i < pgradient->nstops; i++) {
+		stop_colors[count*4] = pixman_fixed_to_double(
+		                                pgradient->stops[i].color.red);
+		stop_colors[count*4+1] = pixman_fixed_to_double(
+		                                pgradient->stops[i].color.green);
+		stop_colors[count*4+2] = pixman_fixed_to_double(
+		                                pgradient->stops[i].color.blue);
+		stop_colors[count*4+3] = pixman_fixed_to_double(
+		                                pgradient->stops[i].color.alpha);
+
+		n_stops[count] = (GLfloat)pixman_fixed_to_double(
+		                                pgradient->stops[i].x);
+		count++;
+	}
+
+	/* for the end stop. */
+	count++;
+
+	switch (src_picture->repeatType) {
+#define REPEAT_FILL_STOPS(m, n) \
+			stop_colors[(m)*4 + 0] = stop_colors[(n)*4 + 0]; \
+			stop_colors[(m)*4 + 1] = stop_colors[(n)*4 + 1]; \
+			stop_colors[(m)*4 + 2] = stop_colors[(n)*4 + 2]; \
+			stop_colors[(m)*4 + 3] = stop_colors[(n)*4 + 3];
+
+		default:
+		case PIXMAN_REPEAT_NONE:
+			stop_colors[0] = 0.0;	   //R
+			stop_colors[1] = 0.0;	   //G
+			stop_colors[2] = 0.0;	   //B
+			stop_colors[3] = 0.0;	   //Alpha
+			n_stops[0] = -(float)INT_MAX;  //should be small enough.
+
+			stop_colors[0 + (count-1)*4] = 0.0;	 //R
+			stop_colors[1 + (count-1)*4] = 0.0;	 //G
+			stop_colors[2 + (count-1)*4] = 0.0;	 //B
+			stop_colors[3 + (count-1)*4] = 0.0;	 //Alpha
+			n_stops[count-1] = (float)INT_MAX;  //should be large enough.
+			break;
+		case PIXMAN_REPEAT_NORMAL:
+			REPEAT_FILL_STOPS(0, count - 2);
+			n_stops[0] = n_stops[count-2] - 1.0;
+
+			REPEAT_FILL_STOPS(count - 1, 1);
+			n_stops[count-1] = n_stops[1] + 1.0;
+			break;
+		case PIXMAN_REPEAT_REFLECT:
+			REPEAT_FILL_STOPS(0, 1);
+			n_stops[0] = -n_stops[1];
+
+			REPEAT_FILL_STOPS(count - 1, count - 2);
+			n_stops[count-1] = 1.0 + 1.0 - n_stops[count-2];
+			break;
+		case PIXMAN_REPEAT_PAD:
+			REPEAT_FILL_STOPS(0, 1);
+			n_stops[0] = -(float)INT_MAX;
+
+			REPEAT_FILL_STOPS(count - 1, count - 2);
+			n_stops[count-1] = (float)INT_MAX;
+			break;
+#undef REPEAT_FILL_STOPS
+	}
+
+	for (i = 0; i < count; i++) {
+		DEBUGF("n_stops[%d] = %f, color = r:%f g:%f b:%f a:%f\n",
+		       i, n_stops[i],
+		       stop_colors[i*4], stop_colors[i*4+1],
+		       stop_colors[i*4+2], stop_colors[i*4+3]);
+	}
+
+	return count;
+}
+
+PicturePtr
+glamor_generate_radial_gradient_picture(ScreenPtr screen,
+                                         PicturePtr src_picture,
+                                         int x_source, int y_source,
+                                         int width, int height,
+                                         PictFormatShort format)
+{
+	glamor_screen_private *glamor_priv;
+	glamor_gl_dispatch *dispatch;
+	PicturePtr dst_picture = NULL;
+	PixmapPtr pixmap = NULL;
+	GLint gradient_prog = 0;
+	int error;
+	float tex_vertices[8];
+	int stops_count = 0;
+	int count = 0;
+	GLfloat *stop_colors = NULL;
+	GLfloat *n_stops = NULL;
+	GLfloat xscale, yscale;
+	float vertices[8];
+	float transform_mat[3][3];
+	static const float identity_mat[3][3] = {{1.0, 0.0, 0.0},
+	                                         {0.0, 1.0, 0.0},
+	                                         {0.0, 0.0, 1.0}};
+	GLfloat stop_colors_st[RADIAL_SMALL_STOPS*4];
+	GLfloat n_stops_st[RADIAL_SMALL_STOPS];
+	GLfloat A_value;
+	GLfloat cxy[4];
+	float c1x, c1y, c2x, c2y, r1, r2;
+
+	GLint transform_mat_uniform_location = 0;
+	GLint repeat_type_uniform_location = 0;
+	GLint n_stop_uniform_location = 0;
+	GLint stops_uniform_location = 0;
+	GLint stop_colors_uniform_location = 0;
+	GLint stop0_uniform_location = 0;
+	GLint stop1_uniform_location = 0;
+	GLint stop2_uniform_location = 0;
+	GLint stop3_uniform_location = 0;
+	GLint stop4_uniform_location = 0;
+	GLint stop5_uniform_location = 0;
+	GLint stop6_uniform_location = 0;
+	GLint stop7_uniform_location = 0;
+	GLint stop_color0_uniform_location = 0;
+	GLint stop_color1_uniform_location = 0;
+	GLint stop_color2_uniform_location = 0;
+	GLint stop_color3_uniform_location = 0;
+	GLint stop_color4_uniform_location = 0;
+	GLint stop_color5_uniform_location = 0;
+	GLint stop_color6_uniform_location = 0;
+	GLint stop_color7_uniform_location = 0;
+	GLint A_value_uniform_location = 0;
+	GLint c1_uniform_location = 0;
+	GLint r1_uniform_location = 0;
+	GLint c2_uniform_location = 0;
+	GLint r2_uniform_location = 0;
+
+	glamor_priv = glamor_get_screen_private(screen);
+	dispatch = glamor_get_dispatch(glamor_priv);
+
+	/* Create a pixmap with VBO. */
+	pixmap = glamor_create_pixmap(screen,
+	                              width, height,
+	                              PIXMAN_FORMAT_DEPTH(format),
+	                              0);
+	if (!pixmap)
+		goto GRADIENT_FAIL;
+
+	dst_picture = CreatePicture(0, &pixmap->drawable,
+	                            PictureMatchFormat(screen,
+	                                 PIXMAN_FORMAT_DEPTH(format), format),
+	                            0, 0, serverClient, &error);
+
+	/* Release the reference, picture will hold the last one. */
+	glamor_destroy_pixmap(pixmap);
+
+	if (!dst_picture)
+		goto GRADIENT_FAIL;
+
+	ValidatePicture(dst_picture);
+
+	stops_count = src_picture->pSourcePict->radial.nstops + 2;
+
+	/* Because the max value of nstops is unkown, so create a program
+	   when nstops > LINEAR_LARGE_STOPS.*/
+	if (stops_count <= RADIAL_SMALL_STOPS) {
+		gradient_prog = glamor_priv->gradient_prog[SHADER_GRADIENT_RADIAL][0];
+	} else if (stops_count <= RADIAL_LARGE_STOPS) {
+		gradient_prog = glamor_priv->gradient_prog[SHADER_GRADIENT_RADIAL][1];
+	} else {
+		_glamor_create_radial_gradient_program(screen,
+						       src_picture->pSourcePict->linear.nstops + 2,
+						       1);
+		gradient_prog = glamor_priv->gradient_prog[SHADER_GRADIENT_RADIAL][2];
+	}
+
+	/* Bind all the uniform vars .*/
+	transform_mat_uniform_location =
+	    dispatch->glGetUniformLocation(gradient_prog, "transform_mat");
+	repeat_type_uniform_location =
+	    dispatch->glGetUniformLocation(gradient_prog, "repeat_type");
+	n_stop_uniform_location =
+	    dispatch->glGetUniformLocation(gradient_prog, "n_stop");
+	A_value_uniform_location =
+	    dispatch->glGetUniformLocation(gradient_prog, "A_value");
+	repeat_type_uniform_location =
+	    dispatch->glGetUniformLocation(gradient_prog, "repeat_type");
+	c1_uniform_location =
+	    dispatch->glGetUniformLocation(gradient_prog, "c1");
+	r1_uniform_location =
+	    dispatch->glGetUniformLocation(gradient_prog, "r1");
+	c2_uniform_location =
+	    dispatch->glGetUniformLocation(gradient_prog, "c2");
+	r2_uniform_location =
+	    dispatch->glGetUniformLocation(gradient_prog, "r2");
+
+	if (src_picture->pSourcePict->radial.nstops + 2 <= RADIAL_SMALL_STOPS) {
+		stop0_uniform_location =
+		    dispatch->glGetUniformLocation(gradient_prog, "stop0");
+		stop1_uniform_location =
+		    dispatch->glGetUniformLocation(gradient_prog, "stop1");
+		stop2_uniform_location =
+		    dispatch->glGetUniformLocation(gradient_prog, "stop2");
+		stop3_uniform_location =
+		    dispatch->glGetUniformLocation(gradient_prog, "stop3");
+		stop4_uniform_location =
+		    dispatch->glGetUniformLocation(gradient_prog, "stop4");
+		stop5_uniform_location =
+		    dispatch->glGetUniformLocation(gradient_prog, "stop5");
+		stop6_uniform_location =
+		    dispatch->glGetUniformLocation(gradient_prog, "stop6");
+		stop7_uniform_location =
+		    dispatch->glGetUniformLocation(gradient_prog, "stop7");
+
+		stop_color0_uniform_location =
+		    dispatch->glGetUniformLocation(gradient_prog, "stop_color0");
+		stop_color1_uniform_location =
+		    dispatch->glGetUniformLocation(gradient_prog, "stop_color1");
+		stop_color2_uniform_location =
+		    dispatch->glGetUniformLocation(gradient_prog, "stop_color2");
+		stop_color3_uniform_location =
+		    dispatch->glGetUniformLocation(gradient_prog, "stop_color3");
+		stop_color4_uniform_location =
+		    dispatch->glGetUniformLocation(gradient_prog, "stop_color4");
+		stop_color5_uniform_location =
+		    dispatch->glGetUniformLocation(gradient_prog, "stop_color5");
+		stop_color6_uniform_location =
+		    dispatch->glGetUniformLocation(gradient_prog, "stop_color6");
+		stop_color7_uniform_location =
+		    dispatch->glGetUniformLocation(gradient_prog, "stop_color7");
+	} else {
+		stops_uniform_location =
+		    dispatch->glGetUniformLocation(gradient_prog, "stops");
+		stop_colors_uniform_location =
+		    dispatch->glGetUniformLocation(gradient_prog, "stop_colors");
+	}
+
+	dispatch->glUseProgram(gradient_prog);
+
+	dispatch->glUniform1i(repeat_type_uniform_location, src_picture->repeatType);
+
+
+	if (src_picture->transform) {
+		_glamor_gradient_convert_trans_matrix(src_picture->transform,
+		                                      transform_mat,
+		                                      width, height, 0);
+		dispatch->glUniformMatrix3fv(transform_mat_uniform_location,
+		                             1, 1, &transform_mat[0][0]);
+	} else {
+		dispatch->glUniformMatrix3fv(transform_mat_uniform_location,
+		                             1, 1, &identity_mat[0][0]);
+	}
+
+	if (!_glamor_gradient_set_pixmap_destination(screen, glamor_priv, dst_picture,
+	                                             &xscale, &yscale, x_source, y_source,
+	                                             vertices, tex_vertices, 0))
+		goto GRADIENT_FAIL;
+
+	/* Set all the stops and colors to shader. */
+	if (stops_count > RADIAL_SMALL_STOPS) {
+		stop_colors = malloc(4 * stops_count * sizeof(float));
+		if (stop_colors == NULL) {
+			ErrorF("Failed to allocate stop_colors memory.\n");
+			goto GRADIENT_FAIL;
+		}
+
+		n_stops = malloc(stops_count * sizeof(float));
+		if (n_stops == NULL) {
+			ErrorF("Failed to allocate n_stops memory.\n");
+			goto GRADIENT_FAIL;
+		}
+	} else {
+		stop_colors = stop_colors_st;
+		n_stops = n_stops_st;
+	}
+
+	count = _glamor_gradient_set_stops(src_picture, &src_picture->pSourcePict->gradient,
+	                                   stop_colors, n_stops);
+
+	if (src_picture->pSourcePict->linear.nstops + 2 <= RADIAL_SMALL_STOPS) {
+		int j = 0;
+		dispatch->glUniform4f(stop_color0_uniform_location,
+		                      stop_colors[4*j+0], stop_colors[4*j+1],
+		                      stop_colors[4*j+2], stop_colors[4*j+3]);
+		j++;
+		dispatch->glUniform4f(stop_color1_uniform_location,
+		                      stop_colors[4*j+0], stop_colors[4*j+1],
+		                      stop_colors[4*j+2], stop_colors[4*j+3]);
+		j++;
+		dispatch->glUniform4f(stop_color2_uniform_location,
+		                      stop_colors[4*j+0], stop_colors[4*j+1],
+		                      stop_colors[4*j+2], stop_colors[4*j+3]);
+		j++;
+		dispatch->glUniform4f(stop_color3_uniform_location,
+		                      stop_colors[4*j+0], stop_colors[4*j+1],
+		                      stop_colors[4*j+2], stop_colors[4*j+3]);
+		j++;
+		dispatch->glUniform4f(stop_color4_uniform_location,
+		                      stop_colors[4*j+0], stop_colors[4*j+1],
+		                      stop_colors[4*j+2], stop_colors[4*j+3]);
+		j++;
+		dispatch->glUniform4f(stop_color5_uniform_location,
+		                      stop_colors[4*j+0], stop_colors[4*j+1],
+		                      stop_colors[4*j+2], stop_colors[4*j+3]);
+		j++;
+		dispatch->glUniform4f(stop_color6_uniform_location,
+		                      stop_colors[4*j+0], stop_colors[4*j+1],
+		                      stop_colors[4*j+2], stop_colors[4*j+3]);
+		j++;
+		dispatch->glUniform4f(stop_color7_uniform_location,
+		                      stop_colors[4*j+0], stop_colors[4*j+1],
+		                      stop_colors[4*j+2], stop_colors[4*j+3]);
+
+		j = 0;
+		dispatch->glUniform1f(stop0_uniform_location, n_stops[j++]);
+		dispatch->glUniform1f(stop1_uniform_location, n_stops[j++]);
+		dispatch->glUniform1f(stop2_uniform_location, n_stops[j++]);
+		dispatch->glUniform1f(stop3_uniform_location, n_stops[j++]);
+		dispatch->glUniform1f(stop4_uniform_location, n_stops[j++]);
+		dispatch->glUniform1f(stop5_uniform_location, n_stops[j++]);
+		dispatch->glUniform1f(stop6_uniform_location, n_stops[j++]);
+		dispatch->glUniform1f(stop7_uniform_location, n_stops[j++]);
+		dispatch->glUniform1i(n_stop_uniform_location, count);
+	} else {
+		dispatch->glUniform4fv(stop_colors_uniform_location, count, stop_colors);
+		dispatch->glUniform1fv(stops_uniform_location, count, n_stops);
+		dispatch->glUniform1i(n_stop_uniform_location, count);
+	}
+
+	c1x = (float)pixman_fixed_to_double(src_picture->pSourcePict->radial.c1.x);
+	c1y = (float)pixman_fixed_to_double(src_picture->pSourcePict->radial.c1.y);
+	c2x = (float)pixman_fixed_to_double(src_picture->pSourcePict->radial.c2.x);
+	c2y = (float)pixman_fixed_to_double(src_picture->pSourcePict->radial.c2.y);
+
+	r1 = (float)pixman_fixed_to_double(src_picture->pSourcePict->radial.c1.radius);
+	r2 = (float)pixman_fixed_to_double(src_picture->pSourcePict->radial.c2.radius);
+
+	glamor_set_circle_centre(width, height, c1x, c1y, glamor_priv->yInverted, cxy);
+	dispatch->glUniform2fv(c1_uniform_location, 1, cxy);
+	dispatch->glUniform1f(r1_uniform_location, r1);
+
+	glamor_set_circle_centre(width, height, c2x, c2y, glamor_priv->yInverted, cxy);
+	dispatch->glUniform2fv(c2_uniform_location, 1, cxy);
+	dispatch->glUniform1f(r2_uniform_location, r2);
+
+	A_value = (c2x - c1x) * (c2x - c1x) + (c2y - c1y) * (c2y - c1y) - (r2 - r1) * (r2 - r1);
+	dispatch->glUniform1f(A_value_uniform_location, A_value);
+
+	DEBUGF("C1:(%f, %f) R1:%f\nC2:(%f, %f) R2:%f\nA = %f\n",
+	       c1x, c1y, r1, c2x, c2y, r2, A_value);
+
+	/* Now rendering. */
+	dispatch->glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
+
+	/* Do the clear logic.*/
+	if (stops_count > RADIAL_SMALL_STOPS) {
+		free(n_stops);
+		free(stop_colors);
+	}
+
+	dispatch->glBindBuffer(GL_ARRAY_BUFFER, 0);
+	dispatch->glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
+
+	dispatch->glDisableVertexAttribArray(GLAMOR_VERTEX_POS);
+	dispatch->glDisableVertexAttribArray(GLAMOR_VERTEX_SOURCE);
+	dispatch->glUseProgram(0);
+
+	glamor_put_dispatch(glamor_priv);
+	return dst_picture;
+
+GRADIENT_FAIL:
+	if (dst_picture) {
+		FreePicture(dst_picture, 0);
+	}
+
+	if (stops_count > RADIAL_SMALL_STOPS) {
+		if (n_stops)
+			free(n_stops);
+		if (stop_colors)
+			free(stop_colors);
+	}
+
+	dispatch->glBindBuffer(GL_ARRAY_BUFFER, 0);
+	dispatch->glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
+
+	dispatch->glDisableVertexAttribArray(GLAMOR_VERTEX_POS);
+	dispatch->glDisableVertexAttribArray(GLAMOR_VERTEX_SOURCE);
+	dispatch->glUseProgram(0);
+	glamor_put_dispatch(glamor_priv);
+	return NULL;
+}
+
+PicturePtr
+glamor_generate_linear_gradient_picture(ScreenPtr screen,
+                                         PicturePtr src_picture,
+                                         int x_source, int y_source,
+                                         int width, int height,
+                                         PictFormatShort format)
+{
+	glamor_screen_private *glamor_priv;
+	glamor_gl_dispatch *dispatch;
+	PicturePtr dst_picture = NULL;
+	PixmapPtr pixmap = NULL;
+	GLint gradient_prog = 0;
+	int error;
+	float pt_distance;
+	float p1_distance;
+	GLfloat cos_val;
+	float tex_vertices[8];
+	int stops_count = 0;
+	GLfloat *stop_colors = NULL;
+	GLfloat *n_stops = NULL;
+	int count = 0;
+	float slope;
+	GLfloat xscale, yscale;
+	GLfloat pt1[2], pt2[2];
+	float vertices[8];
+	float transform_mat[3][3];
+	static const float identity_mat[3][3] = {{1.0, 0.0, 0.0},
+	                                         {0.0, 1.0, 0.0},
+	                                         {0.0, 0.0, 1.0}};
+	GLfloat stop_colors_st[LINEAR_SMALL_STOPS*4];
+	GLfloat n_stops_st[LINEAR_SMALL_STOPS];
+
+	GLint transform_mat_uniform_location = 0;
+	GLint n_stop_uniform_location = 0;
+	GLint stops_uniform_location = 0;
+	GLint stop0_uniform_location = 0;
+	GLint stop1_uniform_location = 0;
+	GLint stop2_uniform_location = 0;
+	GLint stop3_uniform_location = 0;
+	GLint stop4_uniform_location = 0;
+	GLint stop5_uniform_location = 0;
+	GLint stop6_uniform_location = 0;
+	GLint stop7_uniform_location = 0;
+	GLint stop_colors_uniform_location = 0;
+	GLint stop_color0_uniform_location = 0;
+	GLint stop_color1_uniform_location = 0;
+	GLint stop_color2_uniform_location = 0;
+	GLint stop_color3_uniform_location = 0;
+	GLint stop_color4_uniform_location = 0;
+	GLint stop_color5_uniform_location = 0;
+	GLint stop_color6_uniform_location = 0;
+	GLint stop_color7_uniform_location = 0;
+	GLint pt_slope_uniform_location = 0;
+	GLint repeat_type_uniform_location = 0;
+	GLint hor_ver_uniform_location = 0;
+	GLint cos_val_uniform_location = 0;
+	GLint p1_distance_uniform_location = 0;
+	GLint pt_distance_uniform_location = 0;
+
+	glamor_priv = glamor_get_screen_private(screen);
+	dispatch = glamor_get_dispatch(glamor_priv);
+
+	/* Create a pixmap with VBO. */
+	pixmap = glamor_create_pixmap(screen,
+	                              width, height,
+	                              PIXMAN_FORMAT_DEPTH(format),
+	                              0);
+
+	if (!pixmap)
+		goto GRADIENT_FAIL;
+
+	dst_picture = CreatePicture(0, &pixmap->drawable,
+	                            PictureMatchFormat(screen,
+	                                    PIXMAN_FORMAT_DEPTH(format), format),
+	                            0, 0, serverClient, &error);
+
+	/* Release the reference, picture will hold the last one. */
+	glamor_destroy_pixmap(pixmap);
+
+	if (!dst_picture)
+		goto GRADIENT_FAIL;
+
+	ValidatePicture(dst_picture);
+
+	stops_count = src_picture->pSourcePict->linear.nstops + 2;
+
+	/* Because the max value of nstops is unkown, so create a program
+	   when nstops > LINEAR_LARGE_STOPS.*/
+	if (stops_count <= LINEAR_SMALL_STOPS) {
+		gradient_prog = glamor_priv->gradient_prog[SHADER_GRADIENT_LINEAR][0];
+	} else if (stops_count <= LINEAR_LARGE_STOPS) {
+		gradient_prog = glamor_priv->gradient_prog[SHADER_GRADIENT_LINEAR][1];
+	} else {
+		_glamor_create_linear_gradient_program(screen,
+		        src_picture->pSourcePict->linear.nstops + 2, 1);
+		gradient_prog = glamor_priv->gradient_prog[SHADER_GRADIENT_LINEAR][2];
+	}
+
+	/* Bind all the uniform vars .*/
+	n_stop_uniform_location =
+	    dispatch->glGetUniformLocation(gradient_prog, "n_stop");
+	pt_slope_uniform_location =
+	    dispatch->glGetUniformLocation(gradient_prog, "pt_slope");
+	repeat_type_uniform_location =
+	    dispatch->glGetUniformLocation(gradient_prog, "repeat_type");
+	hor_ver_uniform_location =
+	    dispatch->glGetUniformLocation(gradient_prog, "hor_ver");
+	transform_mat_uniform_location =
+	    dispatch->glGetUniformLocation(gradient_prog, "transform_mat");
+	cos_val_uniform_location =
+	    dispatch->glGetUniformLocation(gradient_prog, "cos_val");
+	p1_distance_uniform_location =
+	    dispatch->glGetUniformLocation(gradient_prog, "p1_distance");
+	pt_distance_uniform_location =
+	    dispatch->glGetUniformLocation(gradient_prog, "pt_distance");
+
+	if (src_picture->pSourcePict->linear.nstops + 2 <= LINEAR_SMALL_STOPS) {
+		stop0_uniform_location =
+		    dispatch->glGetUniformLocation(gradient_prog, "stop0");
+		stop1_uniform_location =
+		    dispatch->glGetUniformLocation(gradient_prog, "stop1");
+		stop2_uniform_location =
+		    dispatch->glGetUniformLocation(gradient_prog, "stop2");
+		stop3_uniform_location =
+		    dispatch->glGetUniformLocation(gradient_prog, "stop3");
+		stop4_uniform_location =
+		    dispatch->glGetUniformLocation(gradient_prog, "stop4");
+		stop5_uniform_location =
+		    dispatch->glGetUniformLocation(gradient_prog, "stop5");
+		stop6_uniform_location =
+		    dispatch->glGetUniformLocation(gradient_prog, "stop6");
+		stop7_uniform_location =
+		    dispatch->glGetUniformLocation(gradient_prog, "stop7");
+
+		stop_color0_uniform_location =
+		    dispatch->glGetUniformLocation(gradient_prog, "stop_color0");
+		stop_color1_uniform_location =
+		    dispatch->glGetUniformLocation(gradient_prog, "stop_color1");
+		stop_color2_uniform_location =
+		    dispatch->glGetUniformLocation(gradient_prog, "stop_color2");
+		stop_color3_uniform_location =
+		    dispatch->glGetUniformLocation(gradient_prog, "stop_color3");
+		stop_color4_uniform_location =
+		    dispatch->glGetUniformLocation(gradient_prog, "stop_color4");
+		stop_color5_uniform_location =
+		    dispatch->glGetUniformLocation(gradient_prog, "stop_color5");
+		stop_color6_uniform_location =
+		    dispatch->glGetUniformLocation(gradient_prog, "stop_color6");
+		stop_color7_uniform_location =
+		    dispatch->glGetUniformLocation(gradient_prog, "stop_color7");
+	} else {
+		stops_uniform_location =
+		    dispatch->glGetUniformLocation(gradient_prog, "stops");
+		stop_colors_uniform_location =
+		    dispatch->glGetUniformLocation(gradient_prog, "stop_colors");
+	}
+
+	dispatch->glUseProgram(gradient_prog);
+
+	dispatch->glUniform1i(repeat_type_uniform_location, src_picture->repeatType);
+
+	/* set the transform matrix. */
+	if (src_picture->transform) {
+		_glamor_gradient_convert_trans_matrix(src_picture->transform,
+		                                      transform_mat,
+		                                      width, height, 1);
+		dispatch->glUniformMatrix3fv(transform_mat_uniform_location,
+		                             1, 1, &transform_mat[0][0]);
+	} else {
+		dispatch->glUniformMatrix3fv(transform_mat_uniform_location,
+		                             1, 1, &identity_mat[0][0]);
+	}
+
+	if (!_glamor_gradient_set_pixmap_destination(screen, glamor_priv, dst_picture,
+	                                             &xscale, &yscale, x_source, y_source,
+	                                             vertices, tex_vertices, 1))
+		goto GRADIENT_FAIL;
+
+	/* Normalize the PTs. */
+	glamor_set_normalize_pt(xscale, yscale,
+	                        pixman_fixed_to_double(src_picture->pSourcePict->linear.p1.x),
+	                        pixman_fixed_to_double(src_picture->pSourcePict->linear.p1.y),
+	                        glamor_priv->yInverted,
+	                        pt1);
+	DEBUGF("pt1:(%f, %f) ---> (%f %f)\n", pixman_fixed_to_double(src_picture->pSourcePict->linear.p1.x),
+	       pixman_fixed_to_double(src_picture->pSourcePict->linear.p1.y), pt1[0], pt1[1]);
+
+	glamor_set_normalize_pt(xscale, yscale,
+	                        pixman_fixed_to_double(src_picture->pSourcePict->linear.p2.x),
+	                        pixman_fixed_to_double(src_picture->pSourcePict->linear.p2.y),
+	                        glamor_priv->yInverted,
+	                        pt2);
+	DEBUGF("pt2:(%f, %f) ---> (%f %f)\n", pixman_fixed_to_double(src_picture->pSourcePict->linear.p2.x),
+	       pixman_fixed_to_double(src_picture->pSourcePict->linear.p2.y), pt2[0], pt2[1]);
+
+	/* Set all the stops and colors to shader. */
+	if (stops_count > LINEAR_SMALL_STOPS) {
+		stop_colors = malloc(4 * stops_count * sizeof(float));
+		if (stop_colors == NULL) {
+			ErrorF("Failed to allocate stop_colors memory.\n");
+			goto GRADIENT_FAIL;
+		}
+
+		n_stops = malloc(stops_count * sizeof(float));
+		if (n_stops == NULL) {
+			ErrorF("Failed to allocate n_stops memory.\n");
+			goto GRADIENT_FAIL;
+		}
+	} else {
+		stop_colors = stop_colors_st;
+		n_stops = n_stops_st;
+	}
+
+	count = _glamor_gradient_set_stops(src_picture, &src_picture->pSourcePict->gradient,
+	                                   stop_colors, n_stops);
+
+	if (src_picture->pSourcePict->linear.nstops + 2 <= LINEAR_SMALL_STOPS) {
+		int j = 0;
+		dispatch->glUniform4f(stop_color0_uniform_location,
+		                      stop_colors[4*j+0], stop_colors[4*j+1],
+		                      stop_colors[4*j+2], stop_colors[4*j+3]);
+		j++;
+		dispatch->glUniform4f(stop_color1_uniform_location,
+		                      stop_colors[4*j+0], stop_colors[4*j+1],
+		                      stop_colors[4*j+2], stop_colors[4*j+3]);
+		j++;
+		dispatch->glUniform4f(stop_color2_uniform_location,
+		                      stop_colors[4*j+0], stop_colors[4*j+1],
+		                      stop_colors[4*j+2], stop_colors[4*j+3]);
+		j++;
+		dispatch->glUniform4f(stop_color3_uniform_location,
+		                      stop_colors[4*j+0], stop_colors[4*j+1],
+		                      stop_colors[4*j+2], stop_colors[4*j+3]);
+		j++;
+		dispatch->glUniform4f(stop_color4_uniform_location,
+		                      stop_colors[4*j+0], stop_colors[4*j+1],
+		                      stop_colors[4*j+2], stop_colors[4*j+3]);
+		j++;
+		dispatch->glUniform4f(stop_color5_uniform_location,
+		                      stop_colors[4*j+0], stop_colors[4*j+1],
+		                      stop_colors[4*j+2], stop_colors[4*j+3]);
+		j++;
+		dispatch->glUniform4f(stop_color6_uniform_location,
+		                      stop_colors[4*j+0], stop_colors[4*j+1],
+		                      stop_colors[4*j+2], stop_colors[4*j+3]);
+		j++;
+		dispatch->glUniform4f(stop_color7_uniform_location,
+		                      stop_colors[4*j+0], stop_colors[4*j+1],
+		                      stop_colors[4*j+2], stop_colors[4*j+3]);
+
+		j = 0;
+		dispatch->glUniform1f(stop0_uniform_location, n_stops[j++]);
+		dispatch->glUniform1f(stop1_uniform_location, n_stops[j++]);
+		dispatch->glUniform1f(stop2_uniform_location, n_stops[j++]);
+		dispatch->glUniform1f(stop3_uniform_location, n_stops[j++]);
+		dispatch->glUniform1f(stop4_uniform_location, n_stops[j++]);
+		dispatch->glUniform1f(stop5_uniform_location, n_stops[j++]);
+		dispatch->glUniform1f(stop6_uniform_location, n_stops[j++]);
+		dispatch->glUniform1f(stop7_uniform_location, n_stops[j++]);
+
+		dispatch->glUniform1i(n_stop_uniform_location, count);
+	} else {
+		dispatch->glUniform4fv(stop_colors_uniform_location, count, stop_colors);
+		dispatch->glUniform1fv(stops_uniform_location, count, n_stops);
+		dispatch->glUniform1i(n_stop_uniform_location, count);
+	}
+
+	if (src_picture->pSourcePict->linear.p2.y ==
+	              src_picture->pSourcePict->linear.p1.y) { // The horizontal case.
+		dispatch->glUniform1i(hor_ver_uniform_location, 1);
+		DEBUGF("p1.y: %f, p2.y: %f, enter the horizontal case\n",
+		       pt1[1], pt2[1]);
+
+		p1_distance = pt1[0];
+		pt_distance = (pt2[0] - p1_distance);
+		dispatch->glUniform1f(p1_distance_uniform_location, p1_distance);
+		dispatch->glUniform1f(pt_distance_uniform_location, pt_distance);
+	} else {
+		/* The slope need to compute here. In shader, the viewport set will change
+		   the orginal slope and the slope which is vertical to it will not be correct.*/
+		slope = - (float)(src_picture->pSourcePict->linear.p2.x
+				  - src_picture->pSourcePict->linear.p1.x) /
+		          (float)(src_picture->pSourcePict->linear.p2.y
+				  - src_picture->pSourcePict->linear.p1.y);
+		slope = slope * yscale / xscale;
+		dispatch->glUniform1f(pt_slope_uniform_location, slope);
+		dispatch->glUniform1i(hor_ver_uniform_location, 0);
+
+		cos_val = sqrt(1.0 / (slope * slope + 1.0));
+		dispatch->glUniform1f(cos_val_uniform_location, cos_val);
+
+		p1_distance = (pt1[1] - pt1[0] * slope) * cos_val;
+		pt_distance = (pt2[1] - pt2[0] * slope) * cos_val - p1_distance;
+		dispatch->glUniform1f(p1_distance_uniform_location, p1_distance);
+		dispatch->glUniform1f(pt_distance_uniform_location, pt_distance);
+	}
+
+	/* Now rendering. */
+	dispatch->glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
+
+	/* Do the clear logic.*/
+	if (stops_count > LINEAR_SMALL_STOPS) {
+		free(n_stops);
+		free(stop_colors);
+	}
+
+	dispatch->glBindBuffer(GL_ARRAY_BUFFER, 0);
+	dispatch->glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
+
+	dispatch->glDisableVertexAttribArray(GLAMOR_VERTEX_POS);
+	dispatch->glDisableVertexAttribArray(GLAMOR_VERTEX_SOURCE);
+	dispatch->glUseProgram(0);
+
+	glamor_put_dispatch(glamor_priv);
+	return dst_picture;
+
+GRADIENT_FAIL:
+	if (dst_picture) {
+		FreePicture(dst_picture, 0);
+	}
+
+	if (stops_count > LINEAR_SMALL_STOPS) {
+		if (n_stops)
+			free(n_stops);
+		if (stop_colors)
+			free(stop_colors);
+	}
+
+	dispatch->glBindBuffer(GL_ARRAY_BUFFER, 0);
+	dispatch->glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
+
+	dispatch->glDisableVertexAttribArray(GLAMOR_VERTEX_POS);
+	dispatch->glDisableVertexAttribArray(GLAMOR_VERTEX_SOURCE);
+	dispatch->glUseProgram(0);
+	glamor_put_dispatch(glamor_priv);
+	return NULL;
+}
+
+#endif /* End of GLAMOR_GRADIENT_SHADER */
+
+#endif /* End of RENDER */
diff --git a/glamor/glamor_largepixmap.c b/glamor/glamor_largepixmap.c
new file mode 100644
index 000000000..91ee8f2df
--- /dev/null
+++ b/glamor/glamor_largepixmap.c
@@ -0,0 +1,1324 @@
+#include <stdlib.h>
+
+#include "glamor_priv.h"
+
+/**
+ * Clip the boxes regards to each pixmap's block array.
+ *
+ * Should translate the region to relative coords to the pixmap,
+ * start at (0,0).
+ */
+#if 0
+//#define DEBUGF(str, ...)  do {} while(0)
+#define DEBUGF(str, ...) ErrorF(str, ##__VA_ARGS__)
+//#define DEBUGRegionPrint(x) do {} while (0)
+#define DEBUGRegionPrint RegionPrint
+#endif
+
+static glamor_pixmap_clipped_regions *
+__glamor_compute_clipped_regions(int block_w,
+			       int block_h,
+			       int block_stride,
+			       int x, int y,
+			       int w, int h,
+                               RegionPtr region,
+                               int *n_region,
+			       int reverse,
+			       int upsidedown)
+{
+	glamor_pixmap_clipped_regions * clipped_regions;
+	BoxPtr extent;
+	int start_x, start_y, end_x, end_y;
+	int start_block_x, start_block_y;
+	int end_block_x, end_block_y;
+	int loop_start_block_x, loop_start_block_y;
+	int loop_end_block_x, loop_end_block_y;
+	int loop_block_stride;
+	int i, j, delta_i, delta_j;
+	RegionRec temp_region;
+	RegionPtr current_region;
+	int block_idx;
+	int k = 0;
+	int temp_block_idx;
+
+	extent = RegionExtents(region);
+	start_x = MAX(x, extent->x1);
+	start_y = MAX(y, extent->y1);
+	end_x = MIN(x + w, extent->x2);
+	end_y = MIN(y + h, extent->y2);
+
+	DEBUGF("start compute clipped regions:\n");
+	DEBUGF("block w %d h %d  x %d y %d w %d h %d, block_stride %d \n",
+		block_w, block_h, x, y, w, h, block_stride);
+	DEBUGRegionPrint(region);
+
+	DEBUGF("start_x %d start_y %d end_x %d end_y %d \n", start_x, start_y, end_x, end_y);
+
+	if (start_x >= end_x || start_y >= end_y) {
+		*n_region = 0;
+		return NULL;
+	}
+
+	start_block_x = (start_x  - x)/ block_w;
+	start_block_y = (start_y - y)/ block_h;
+	end_block_x = (end_x - x)/ block_w;
+	end_block_y = (end_y - y)/ block_h;
+
+	clipped_regions = calloc((end_block_x - start_block_x + 1)
+				 * (end_block_y - start_block_y + 1),
+				 sizeof(*clipped_regions));
+
+
+	DEBUGF("startx %d starty %d endx %d endy %d \n",
+		start_x, start_y, end_x, end_y);
+	DEBUGF("start_block_x %d end_block_x %d \n", start_block_x, end_block_x);
+	DEBUGF("start_block_y %d end_block_y %d \n", start_block_y, end_block_y);
+
+	if (!reverse) {
+		loop_start_block_x = start_block_x;
+		loop_end_block_x = end_block_x + 1;
+		delta_i = 1;
+	} else {
+		loop_start_block_x = end_block_x;
+		loop_end_block_x = start_block_x - 1;
+		delta_i = -1;
+	}
+
+	if (!upsidedown) {
+		loop_start_block_y = start_block_y;
+		loop_end_block_y = end_block_y + 1;
+		delta_j = 1;
+	} else {
+		loop_start_block_y = end_block_y;
+		loop_end_block_y = start_block_y - 1;
+		delta_j = -1;
+	}
+
+	loop_block_stride = delta_j * block_stride;
+	block_idx = (loop_start_block_y - delta_j) * block_stride;
+
+	for(j = loop_start_block_y; j != loop_end_block_y; j += delta_j)
+	{
+		block_idx += loop_block_stride;
+		temp_block_idx = block_idx + loop_start_block_x;
+		for(i = loop_start_block_x;
+		    i != loop_end_block_x; i += delta_i, temp_block_idx += delta_i)
+		{
+			BoxRec temp_box;
+			temp_box.x1 = x + i * block_w;
+			temp_box.y1 = y + j * block_h;
+			temp_box.x2 = MIN(temp_box.x1 + block_w, end_x);
+			temp_box.y2 = MIN(temp_box.y1 + block_h, end_y);
+			RegionInitBoxes(&temp_region, &temp_box, 1);
+			DEBUGF("block idx %d \n",temp_block_idx);
+			DEBUGRegionPrint(&temp_region);
+			current_region = RegionCreate(NULL, 4);
+			RegionIntersect(current_region, &temp_region, region);
+			DEBUGF("i %d j %d  region: \n",i ,j);
+			DEBUGRegionPrint(current_region);
+			if (RegionNumRects(current_region)) {
+				clipped_regions[k].region = current_region;
+				clipped_regions[k].block_idx = temp_block_idx;
+				k++;
+			} else
+				RegionDestroy(current_region);
+			RegionUninit(&temp_region);
+		}
+	}
+
+	*n_region = k;
+	return clipped_regions;
+}
+
+/**
+ * Do a two round clipping,
+ * first is to clip the region regard to current pixmap's
+ * block array. Then for each clipped region, do a inner
+ * block clipping. This is to make sure the final result
+ * will be shapped by inner_block_w and inner_block_h, and
+ * the final region also will not cross the pixmap's block
+ * boundary.
+ *
+ * This is mainly used by transformation support when do
+ * compositing.
+ */
+
+glamor_pixmap_clipped_regions *
+glamor_compute_clipped_regions_ext(glamor_pixmap_private *pixmap_priv,
+				   RegionPtr region,
+				   int *n_region,
+				   int inner_block_w, int inner_block_h,
+				   int reverse, int upsidedown)
+{
+	glamor_pixmap_clipped_regions * clipped_regions, *inner_regions, *result_regions;
+	int i, j, x, y, k, inner_n_regions;
+	int width, height;
+	glamor_pixmap_private_large_t *priv;
+	priv = &pixmap_priv->large;
+
+	DEBUGF("ext called \n");
+
+	if (pixmap_priv->type != GLAMOR_TEXTURE_LARGE) {
+		clipped_regions = calloc(1, sizeof(*clipped_regions));
+		if (clipped_regions == NULL) {
+			*n_region = 0;
+			return NULL;
+		}
+		clipped_regions[0].region = RegionCreate(NULL, 1);
+		clipped_regions[0].block_idx = 0;
+		RegionCopy(clipped_regions[0].region, region);
+		*n_region = 1;
+		priv->block_w = priv->base.pixmap->drawable.width;
+		priv->block_h = priv->base.pixmap->drawable.height;
+		priv->box_array = &priv->box;
+		priv->box.x1 = priv->box.y1 = 0;
+		priv->box.x2 = priv->block_w;
+		priv->box.y2 = priv->block_h;
+	} else {
+		clipped_regions =  __glamor_compute_clipped_regions(priv->block_w,
+					priv->block_h,
+					priv->block_wcnt,
+					0, 0,
+					priv->base.pixmap->drawable.width,
+					priv->base.pixmap->drawable.height,
+					region, n_region, reverse, upsidedown
+					);
+
+		if (clipped_regions == NULL) {
+			*n_region = 0;
+			return NULL;
+		}
+	}
+	if (inner_block_w >= priv->block_w
+	    && inner_block_h >= priv->block_h)
+		return clipped_regions;
+	result_regions = calloc(*n_region
+				* ((priv->block_w + inner_block_w - 1)/inner_block_w)
+				* ((priv->block_h + inner_block_h - 1)/ inner_block_h),
+				sizeof(*result_regions));
+	k = 0;
+	for(i = 0; i < *n_region; i++)
+	{
+		x = priv->box_array[clipped_regions[i].block_idx].x1;
+		y = priv->box_array[clipped_regions[i].block_idx].y1;
+		width = priv->box_array[clipped_regions[i].block_idx].x2 - x;
+		height = priv->box_array[clipped_regions[i].block_idx].y2 - y;
+		inner_regions = __glamor_compute_clipped_regions(inner_block_w,
+					inner_block_h,
+					0, x, y,
+					width,
+					height,
+					clipped_regions[i].region,
+					&inner_n_regions, reverse, upsidedown);
+		for(j = 0; j < inner_n_regions; j++)
+		{
+			result_regions[k].region = inner_regions[j].region;
+			result_regions[k].block_idx = clipped_regions[i].block_idx;
+			k++;
+		}
+		free(inner_regions);
+	}
+	*n_region = k;
+	free(clipped_regions);
+	return result_regions;
+}
+
+/*
+ *
+ * For the repeat pad mode, we can simply convert the region and
+ * let the out-of-box region can cover the needed edge of the source/mask
+ * Then apply a normal clip we can get what we want.
+ */
+static RegionPtr
+_glamor_convert_pad_region(RegionPtr region, int w, int h)
+{
+	RegionPtr pad_region;
+	int nrect;
+	BoxPtr box;
+	int overlap;
+
+	nrect = RegionNumRects(region);
+	box = RegionRects(region);
+	pad_region = RegionCreate(NULL, 4);
+	if (pad_region == NULL)
+		return NULL;
+	while(nrect--) {
+		BoxRec pad_box;
+		RegionRec temp_region;
+		pad_box = *box;
+		if (pad_box.x1 < 0 && pad_box.x2 <= 0)
+			pad_box.x2 = 1;
+		else if (pad_box.x1 >= w && pad_box.x2 > w)
+			pad_box.x1 = w - 1;
+		if (pad_box.y1 < 0 && pad_box.y2 <=0)
+			pad_box.y2 = 1;
+		else if (pad_box.y1 >= h && pad_box.y2 > h)
+			pad_box.y1 = h - 1;
+		RegionInitBoxes(&temp_region, &pad_box, 1);
+		RegionAppend(pad_region, &temp_region);
+		RegionUninit(&temp_region);
+		box++;
+	}
+	RegionValidate(pad_region, &overlap);
+	return pad_region;
+}
+
+/*
+ * For one type of large pixmap, its one direction is not exceed the
+ * size limitation, and in another word, on one direction it has only
+ * one block.
+ *
+ * This case of reflect repeating, we can optimize it and avoid repeat
+ * clip on that direction. We can just enlarge the repeat box and can
+ * cover all the dest region on that direction. But latter, we need to
+ * fixup the clipped result to get a correct coords for the subsequent
+ * processing. This function is to do the coords correction.
+ *
+ * */
+static void
+_glamor_largepixmap_reflect_fixup(short *xy1, short *xy2, int wh)
+{
+	int odd1, odd2;
+	int c1, c2;
+
+	if (*xy2 - *xy1 > wh) {
+		*xy1 = 0;
+		*xy2 = wh;
+		return;
+	}
+	modulus(*xy1, wh, c1);
+	odd1 = ((*xy1 - c1) / wh) & 0x1;
+	modulus(*xy2, wh, c2);
+	odd2 = ((*xy2 - c2) / wh) & 0x1;
+
+	if (odd1 && odd2) {
+		*xy1 = wh - c2;
+		*xy2 = wh - c1;
+	} else if (odd1 && !odd2) {
+		*xy1 = 0;
+		*xy2 = MAX(c2, wh - c1);
+	} else if (!odd1 && odd2) {
+		*xy2 = wh;
+		*xy1 = MIN(c1, wh - c2);
+	} else {
+		*xy1 = c1;
+		*xy2 = c2;
+	}
+}
+
+/**
+ * Clip the boxes regards to each pixmap's block array.
+ *
+ * Should translate the region to relative coords to the pixmap,
+ * start at (0,0).
+ *
+ * @is_transform: if it is set, it has a transform matrix.
+ *
+ */
+static glamor_pixmap_clipped_regions *
+_glamor_compute_clipped_regions(glamor_pixmap_private *pixmap_priv,
+				RegionPtr region, int *n_region,
+				int repeat_type, int is_transform,
+				int reverse, int upsidedown)
+{
+	glamor_pixmap_clipped_regions * clipped_regions;
+	BoxPtr extent;
+	int i, j;
+	RegionPtr current_region;
+	int pixmap_width, pixmap_height;
+	int m;
+	BoxRec repeat_box;
+	RegionRec repeat_region;
+	int right_shift = 0;
+	int down_shift = 0;
+	int x_center_shift = 0, y_center_shift = 0;
+	glamor_pixmap_private_large_t *priv;
+	priv = &pixmap_priv->large;
+
+	DEBUGRegionPrint(region);
+	if (pixmap_priv->type != GLAMOR_TEXTURE_LARGE) {
+		clipped_regions = calloc(1, sizeof(*clipped_regions));
+		clipped_regions[0].region = RegionCreate(NULL, 1);
+		clipped_regions[0].block_idx = 0;
+		RegionCopy(clipped_regions[0].region, region);
+		*n_region = 1;
+		return clipped_regions;
+	}
+
+	pixmap_width = priv->base.pixmap->drawable.width;
+	pixmap_height = priv->base.pixmap->drawable.height;
+	if (repeat_type == 0 || repeat_type == RepeatPad) {
+		RegionPtr saved_region = NULL;
+		if (repeat_type == RepeatPad) {
+			saved_region = region;
+			region = _glamor_convert_pad_region(saved_region, pixmap_width, pixmap_height);
+			if (region == NULL) {
+				*n_region = 0;
+				return NULL;
+			}
+		}
+		clipped_regions = __glamor_compute_clipped_regions(priv->block_w,
+							priv->block_h,
+							priv->block_wcnt,
+							0, 0,
+							priv->base.pixmap->drawable.width,
+							priv->base.pixmap->drawable.height,
+							region, n_region, reverse, upsidedown
+							);
+		if (saved_region)
+			RegionDestroy(region);
+		return clipped_regions;
+	}
+	extent = RegionExtents(region);
+
+	x_center_shift = extent->x1 / pixmap_width;
+	if (x_center_shift < 0)
+		x_center_shift--;
+	if (abs(x_center_shift) & 1)
+		x_center_shift++;
+	y_center_shift = extent->y1 / pixmap_height;
+	if (y_center_shift < 0)
+		y_center_shift--;
+	if (abs(y_center_shift) & 1)
+		y_center_shift++;
+
+	if (extent->x1 < 0)
+		right_shift = ((-extent->x1 + pixmap_width - 1) / pixmap_width );
+	if (extent->y1 < 0)
+		down_shift = ((-extent->y1 + pixmap_height - 1) / pixmap_height );
+
+	if (right_shift != 0 || down_shift != 0) {
+		if (repeat_type == RepeatReflect) {
+			right_shift = (right_shift + 1)&~1;
+			down_shift = (down_shift + 1)&~1;
+		}
+		RegionTranslate(region, right_shift * pixmap_width, down_shift * pixmap_height);
+	}
+
+	extent = RegionExtents(region);
+	/* Tile a large pixmap to another large pixmap.
+	 * We can't use the target large pixmap as the
+	 * loop variable, instead we need to loop for all
+	 * the blocks in the tile pixmap.
+	 *
+	 * simulate repeat each single block to cover the
+	 * target's blocks. Two special case:
+	 * a block_wcnt == 1 or block_hcnt ==1, then we
+	 * only need to loop one direction as the other
+	 * direction is fully included in the first block.
+	 *
+	 * For the other cases, just need to start
+	 * from a proper shiftx/shifty, and then increase
+	 * y by tile_height each time to walk trhough the
+	 * target block and then walk trhough the target
+	 * at x direction by increate tile_width each time.
+	 *
+	 * This way, we can consolidate all the sub blocks
+	 * of the target boxes into one tile source's block.
+	 *
+	 * */
+	m = 0;
+	clipped_regions = calloc(priv->block_wcnt * priv->block_hcnt,
+				 sizeof(*clipped_regions));
+	if (clipped_regions == NULL) {
+		*n_region = 0;
+		return NULL;
+	}
+	if (right_shift != 0 || down_shift != 0) {
+		DEBUGF("region to be repeated shifted \n");
+		DEBUGRegionPrint(region);
+	}
+	DEBUGF("repeat pixmap width %d height %d \n", pixmap_width, pixmap_height);
+	DEBUGF("extent x1 %d y1 %d x2 %d y2 %d \n", extent->x1, extent->y1, extent->x2, extent->y2);
+	for(j = 0; j < priv->block_hcnt; j++)
+	{
+		for(i = 0; i < priv->block_wcnt; i++)
+		{
+			int dx = pixmap_width;
+			int dy = pixmap_height;
+			int idx;
+			int shift_x;
+			int shift_y;
+			int saved_y1, saved_y2;
+			int x_idx = 0, y_idx = 0, saved_y_idx = 0;
+			RegionRec temp_region;
+			BoxRec reflect_repeat_box;
+			BoxPtr valid_repeat_box;
+
+			shift_x = (extent->x1 / pixmap_width) * pixmap_width;
+			shift_y = (extent->y1 / pixmap_height) * pixmap_height;
+			idx = j * priv->block_wcnt + i;
+			if (repeat_type == RepeatReflect) {
+				x_idx = (extent->x1 / pixmap_width);
+				y_idx = (extent->y1 / pixmap_height);
+			}
+
+			/* Construct a rect to clip the target region. */
+			repeat_box.x1 = shift_x + priv->box_array[idx].x1;
+			repeat_box.y1 = shift_y + priv->box_array[idx].y1;
+			if (priv->block_wcnt == 1) {
+				repeat_box.x2 = extent->x2;
+				dx = extent->x2 - repeat_box.x1;
+			} else
+				repeat_box.x2 = shift_x + priv->box_array[idx].x2;
+			if (priv->block_hcnt == 1) {
+				repeat_box.y2 = extent->y2;
+				dy = extent->y2 - repeat_box.y1;
+			} else
+				repeat_box.y2 = shift_y + priv->box_array[idx].y2;
+
+			current_region = RegionCreate(NULL, 4);
+			RegionInit(&temp_region, NULL, 4);
+			DEBUGF("init repeat box %d %d %d %d \n",
+				repeat_box.x1, repeat_box.y1, repeat_box.x2, repeat_box.y2);
+
+			if (repeat_type == RepeatNormal) {
+				saved_y1 = repeat_box.y1;
+				saved_y2 = repeat_box.y2;
+				for(; repeat_box.x1 < extent->x2;
+				      repeat_box.x1 += dx, repeat_box.x2 += dx)
+				{
+					repeat_box.y1 = saved_y1;
+					repeat_box.y2 = saved_y2;
+					for( repeat_box.y1 = saved_y1, repeat_box.y2 = saved_y2;
+					     repeat_box.y1 < extent->y2;
+					     repeat_box.y1 += dy, repeat_box.y2 += dy)
+					{
+
+						RegionInitBoxes(&repeat_region, &repeat_box, 1);
+						DEBUGF("Start to clip repeat region: \n");
+						DEBUGRegionPrint(&repeat_region);
+						RegionIntersect(&temp_region, &repeat_region, region);
+						DEBUGF("clip result:\n");
+						DEBUGRegionPrint(&temp_region);
+						RegionAppend(current_region, &temp_region);
+						RegionUninit(&repeat_region);
+					}
+				}
+			} else if (repeat_type == RepeatReflect) {
+				saved_y1 = repeat_box.y1;
+				saved_y2 = repeat_box.y2;
+				saved_y_idx = y_idx;
+				for(; ; repeat_box.x1 += dx, repeat_box.x2 += dx)
+				{
+					repeat_box.y1 = saved_y1;
+					repeat_box.y2 = saved_y2;
+					y_idx = saved_y_idx;
+					reflect_repeat_box.x1 = (x_idx & 1) ?
+								((2 * x_idx + 1) * dx - repeat_box.x2) : repeat_box.x1;
+					reflect_repeat_box.x2 = (x_idx & 1) ?
+								((2 * x_idx + 1) * dx - repeat_box.x1) : repeat_box.x2;
+					valid_repeat_box = &reflect_repeat_box;
+
+					if (valid_repeat_box->x1 >= extent->x2)
+						break;
+					for( repeat_box.y1 = saved_y1, repeat_box.y2 = saved_y2;
+					     ;
+					     repeat_box.y1 += dy, repeat_box.y2 += dy)
+					{
+
+						DEBUGF("x_idx %d y_idx %d dx %d dy %d\n", x_idx, y_idx, dx, dy);
+						DEBUGF("repeat box %d %d %d %d \n",
+							repeat_box.x1, repeat_box.y1, repeat_box.x2, repeat_box.y2);
+
+						if (priv->block_hcnt > 1) {
+						reflect_repeat_box.y1 = (y_idx & 1) ?
+							((2 * y_idx + 1) * dy - repeat_box.y2) : repeat_box.y1;
+						reflect_repeat_box.y2 = (y_idx & 1) ?
+							((2 * y_idx + 1) * dy - repeat_box.y1) : repeat_box.y2;
+						} else {
+						reflect_repeat_box.y1 = repeat_box.y1;
+						reflect_repeat_box.y2 = repeat_box.y2;
+						}
+
+						DEBUGF("valid_repeat_box x1 %d y1 %d \n",
+							valid_repeat_box->x1, valid_repeat_box->y1);
+						if (valid_repeat_box->y1 >= extent->y2)
+							break;
+						RegionInitBoxes(&repeat_region, valid_repeat_box, 1);
+						DEBUGF("start to clip repeat[reflect] region: \n");
+						DEBUGRegionPrint(&repeat_region);
+						RegionIntersect(&temp_region, &repeat_region, region);
+						DEBUGF("result:\n");
+						DEBUGRegionPrint(&temp_region);
+						if (is_transform && RegionNumRects(&temp_region)) {
+							BoxRec temp_box;
+							BoxPtr temp_extent;
+							temp_extent = RegionExtents(&temp_region);
+							if (priv->block_wcnt > 1) {
+								if (x_idx & 1) {
+									temp_box.x1 = ((2 * x_idx + 1)*dx - temp_extent->x2);
+									temp_box.x2 = ((2 * x_idx + 1)*dx - temp_extent->x1);
+								} else {
+									temp_box.x1 = temp_extent->x1;
+									temp_box.x2 = temp_extent->x2;
+								}
+								modulus(temp_box.x1, pixmap_width, temp_box.x1);
+								modulus(temp_box.x2, pixmap_width, temp_box.x2);
+								if (temp_box.x2 == 0) temp_box.x2 = pixmap_width;
+							} else {
+								temp_box.x1 = temp_extent->x1;
+								temp_box.x2 = temp_extent->x2;
+								_glamor_largepixmap_reflect_fixup(&temp_box.x1, &temp_box.x2, pixmap_width);
+							}
+
+							if (priv->block_hcnt > 1) {
+								if (y_idx & 1) {
+									temp_box.y1 = ((2 * y_idx + 1)*dy - temp_extent->y2);
+									temp_box.y2 = ((2 * y_idx + 1)*dy - temp_extent->y1);
+								} else {
+									temp_box.y1 = temp_extent->y1;
+									temp_box.y2 = temp_extent->y2;
+								}
+
+								modulus(temp_box.y1, pixmap_height, temp_box.y1);
+								modulus(temp_box.y2, pixmap_height, temp_box.y2);
+								if (temp_box.y2 == 0) temp_box.y2 = pixmap_height;
+							} else {
+								temp_box.y1 = temp_extent->y1;
+								temp_box.y2 = temp_extent->y2;
+								_glamor_largepixmap_reflect_fixup(&temp_box.y1, &temp_box.y2, pixmap_height);
+							}
+
+							RegionInitBoxes(&temp_region, &temp_box, 1);
+							RegionTranslate(&temp_region, x_center_shift * pixmap_width, y_center_shift * pixmap_height);
+							DEBUGF("for transform result:\n");
+							DEBUGRegionPrint(&temp_region);
+						}
+						RegionAppend(current_region, &temp_region);
+						RegionUninit(&repeat_region);
+						y_idx++;
+					}
+					x_idx++;
+				}
+			}
+			DEBUGF("dx %d dy %d \n", dx, dy);
+
+			if (RegionNumRects(current_region)) {
+
+				if ((right_shift != 0 || down_shift != 0) && !(is_transform && repeat_type == RepeatReflect))
+					RegionTranslate(current_region,
+							-right_shift * pixmap_width,
+							-down_shift * pixmap_height);
+				clipped_regions[m].region = current_region;
+				clipped_regions[m].block_idx = idx;
+				m++;
+			} else
+				RegionDestroy(current_region);
+			RegionUninit(&temp_region);
+		}
+	}
+
+	if (right_shift != 0 || down_shift != 0)
+		RegionTranslate(region, -right_shift * pixmap_width, -down_shift * pixmap_height);
+	*n_region = m;
+
+	return clipped_regions;
+}
+
+glamor_pixmap_clipped_regions *
+glamor_compute_clipped_regions(glamor_pixmap_private *priv, RegionPtr region,
+			       int *n_region, int repeat_type,
+			       int reverse, int upsidedown)
+{
+	return _glamor_compute_clipped_regions(priv, region, n_region, repeat_type, 0, reverse, upsidedown);
+}
+
+/* XXX overflow still exist. maybe we need to change to use region32.
+ * by default. Or just use region32 for repeat cases?
+ **/
+glamor_pixmap_clipped_regions *
+glamor_compute_transform_clipped_regions(glamor_pixmap_private *priv, struct pixman_transform *transform,
+					 RegionPtr region, int *n_region, int dx, int dy, int repeat_type,
+					 int reverse, int upsidedown)
+{
+	BoxPtr temp_extent;
+	struct pixman_box32 temp_box;
+	struct pixman_box16 short_box;
+	RegionPtr temp_region;
+	glamor_pixmap_clipped_regions *ret;
+
+	temp_region = RegionCreate(NULL, 4);
+	temp_extent = RegionExtents(region);
+	DEBUGF("dest region \n");
+	DEBUGRegionPrint(region);
+	/* dx/dy may exceed MAX SHORT. we have to use
+	 * a box32 to represent it.*/
+	temp_box.x1 = temp_extent->x1 + dx;
+	temp_box.x2 = temp_extent->x2 + dx;
+	temp_box.y1 = temp_extent->y1 + dy;
+	temp_box.y2 = temp_extent->y2 + dy;
+
+	DEBUGF("source box %d %d %d %d \n", temp_box.x1, temp_box.y1, temp_box.x2, temp_box.y2);
+	if (transform)
+		glamor_get_transform_extent_from_box(&temp_box, transform);
+	if (repeat_type == RepeatNone) {
+		if (temp_box.x1 < 0) temp_box.x1 = 0;
+		if (temp_box.y1 < 0) temp_box.y1 = 0;
+		temp_box.x2 = MIN(temp_box.x2, priv->base.pixmap->drawable.width);
+		temp_box.y2 = MIN(temp_box.y2, priv->base.pixmap->drawable.height);
+	}
+	/* Now copy back the box32 to a box16 box. */
+	short_box.x1 = temp_box.x1;
+	short_box.y1 = temp_box.y1;
+	short_box.x2 = temp_box.x2;
+	short_box.y2 = temp_box.y2;
+	RegionInitBoxes(temp_region, &short_box, 1);
+	DEBUGF("copy to temp source region \n");
+	DEBUGRegionPrint(temp_region);
+	ret = _glamor_compute_clipped_regions(priv,
+					      temp_region,
+					      n_region,
+					      repeat_type,
+					      1, reverse,
+					      upsidedown);
+	DEBUGF("n_regions = %d \n", *n_region);
+	RegionDestroy(temp_region);
+
+	return ret;
+}
+/*
+ * As transform and repeatpad mode.
+ * We may get a clipped result which in multipe regions.
+ * It's not easy to do a 2nd round clipping just as we do
+ * without transform/repeatPad. As it's not easy to reverse
+ * the 2nd round clipping result with a transform/repeatPad mode,
+ * or even impossible for some transformation.
+ *
+ * So we have to merge the fragmental region into one region
+ * if the clipped result cross the region boundary.
+ */
+static void
+glamor_merge_clipped_regions(glamor_pixmap_private *pixmap_priv, int repeat_type,
+			     glamor_pixmap_clipped_regions *clipped_regions,
+			     int *n_regions, int *need_clean_fbo)
+{
+	BoxPtr temp_extent;
+	BoxRec temp_box, copy_box;
+	RegionPtr temp_region;
+	glamor_pixmap_private *temp_priv;
+	PixmapPtr temp_pixmap;
+	int overlap;
+	int i;
+	int pixmap_width, pixmap_height;
+	glamor_pixmap_private_large_t *priv;
+
+	priv = &pixmap_priv->large;
+	pixmap_width = priv->base.pixmap->drawable.width;
+	pixmap_height = priv->base.pixmap->drawable.height;
+
+	temp_region = RegionCreate(NULL, 4);
+	for(i = 0; i < *n_regions; i++)
+	{
+		DEBUGF("Region %d:\n", i);
+		DEBUGRegionPrint(clipped_regions[i].region);
+		RegionAppend(temp_region, clipped_regions[i].region);
+	}
+
+	RegionValidate(temp_region, &overlap);
+	DEBUGF("temp region: \n");
+	DEBUGRegionPrint(temp_region);
+	temp_extent = RegionExtents(temp_region);
+
+	temp_box = *temp_extent;
+
+	DEBUGF("need copy region: \n");
+	DEBUGF("%d %d %d %d \n", temp_box.x1, temp_box.y1, temp_box.x2, temp_box.y2);
+	temp_pixmap = glamor_create_pixmap(priv->base.pixmap->drawable.pScreen,
+					  temp_box.x2 - temp_box.x1,
+					  temp_box.y2 - temp_box.y1,
+					  priv->base.pixmap->drawable.depth,
+					  GLAMOR_CREATE_PIXMAP_FIXUP);
+	if (temp_pixmap == NULL) {
+		assert(0);
+		return;
+	}
+
+	temp_priv = glamor_get_pixmap_private(temp_pixmap);
+	assert(temp_priv->type != GLAMOR_TEXTURE_LARGE);
+
+	priv->box = temp_box;
+	if (temp_extent->x1 >= 0 && temp_extent->x2 <= pixmap_width
+	    && temp_extent->y1 >= 0 && temp_extent->y2 <= pixmap_height) {
+		int dx, dy;
+		copy_box.x1 = 0;
+		copy_box.y1 = 0;
+		copy_box.x2 = temp_extent->x2 - temp_extent->x1;
+		copy_box.y2 = temp_extent->y2 - temp_extent->y1;
+		dx = temp_extent->x1;
+		dy = temp_extent->y1;
+		glamor_copy_n_to_n(&priv->base.pixmap->drawable,
+				   &temp_pixmap->drawable,
+				   NULL, &copy_box, 1, dx,
+				   dy, 0, 0, 0, NULL);
+//		glamor_solid(temp_pixmap, 0, 0, temp_pixmap->drawable.width,
+//			       temp_pixmap->drawable.height, GXcopy, 0xffffffff, 0xff00);
+	} else {
+		for (i = 0; i < *n_regions; i++)
+		{
+			BoxPtr box;
+			int nbox;
+			box = REGION_RECTS(clipped_regions[i].region);
+			nbox = REGION_NUM_RECTS(clipped_regions[i].region);
+			while(nbox--) {
+				int dx, dy, c, d;
+				DEBUGF("box x1 %d y1 %d x2 %d y2 %d \n",
+					box->x1, box->y1, box->x2, box->y2);
+				modulus(box->x1, pixmap_width, c);
+				dx = c - (box->x1 - temp_box.x1);
+				copy_box.x1 = box->x1 - temp_box.x1;
+				copy_box.x2 = box->x2 - temp_box.x1;
+
+				modulus(box->y1, pixmap_height, d);
+				dy = d - (box->y1 - temp_box.y1);
+				copy_box.y1 = box->y1 - temp_box.y1;
+				copy_box.y2 = box->y2 - temp_box.y1;
+
+				DEBUGF("copying box %d %d %d %d, dx %d dy %d\n",
+					copy_box.x1, copy_box.y1, copy_box.x2,
+					copy_box.y2, dx, dy);
+
+				glamor_copy_n_to_n(&priv->base.pixmap->drawable,
+						   &temp_pixmap->drawable,
+						   NULL, &copy_box, 1, dx,
+						   dy, 0, 0, 0, NULL);
+				box++;
+			}
+		}
+		//glamor_solid(temp_pixmap, 0, 0, temp_pixmap->drawable.width,
+		//	       temp_pixmap->drawable.height, GXcopy, 0xffffffff, 0xff);
+	}
+	/* The first region will be released at caller side. */
+	for(i = 1; i < *n_regions; i++)
+		RegionDestroy(clipped_regions[i].region);
+	RegionDestroy(temp_region);
+	priv->box = temp_box;
+	priv->base.fbo = glamor_pixmap_detach_fbo(temp_priv);
+	DEBUGF("priv box x1 %d y1 %d x2 %d y2 %d \n",
+		priv->box.x1, priv->box.y1, priv->box.x2, priv->box.y2);
+	glamor_destroy_pixmap(temp_pixmap);
+	*need_clean_fbo = 1;
+	*n_regions = 1;
+}
+
+
+
+/**
+ * Given an expected transformed block width and block height,
+ *
+ * This function calculate a new block width and height which
+ * guarantee the transform result will not exceed the given
+ * block width and height.
+ *
+ * For large block width and height (> 2048), we choose a
+ * smaller new width and height and to reduce the cross region
+ * boundary and can avoid some overhead.
+ *
+ **/
+Bool
+glamor_get_transform_block_size(struct pixman_transform *transform,
+			   int block_w, int block_h,
+			   int *transformed_block_w,
+			   int *transformed_block_h)
+{
+	double a,b,c,d,e,f,g,h;
+	double scale;
+	int width, height;
+	a = pixman_fixed_to_double(transform->matrix[0][0]);
+	b = pixman_fixed_to_double(transform->matrix[0][1]);
+	c = pixman_fixed_to_double(transform->matrix[1][0]);
+	d = pixman_fixed_to_double(transform->matrix[1][1]);
+	scale = pixman_fixed_to_double(transform->matrix[2][2]);
+	if (block_w > 2048) {
+	/* For large block size, we shrink it to smaller box,
+	 * thus latter we may get less cross boundary regions and
+	 * thus can avoid some extra copy.
+	 *
+	 **/
+		width = block_w  / 4;
+		height = block_h / 4;
+	} else {
+		width = block_w - 2;
+		height = block_h - 2;
+	}
+	e = a + b;
+	f = c + d;
+
+	g = a - b;
+	h = c - d;
+
+	e = MIN(block_w, floor(width * scale) / MAX(fabs(e), fabs(g)));
+	f = MIN(block_h, floor(height * scale) / MAX(fabs(f), fabs(h)));
+	*transformed_block_w = MIN(e, f) - 1;
+	*transformed_block_h = *transformed_block_w;
+	if (*transformed_block_w <= 0 || *transformed_block_h <= 0)
+		return FALSE;
+	DEBUGF("original block_w/h %d %d, fixed %d %d \n", block_w, block_h,
+		*transformed_block_w, *transformed_block_h);
+	return TRUE;
+}
+
+#define VECTOR_FROM_POINT(p, x, y)	\
+	p.v[0] = x;  \
+	p.v[1] = y;  \
+	p.v[2] = 1.0;
+void
+glamor_get_transform_extent_from_box(struct pixman_box32 *box,
+		struct pixman_transform *transform)
+{
+	struct pixman_f_vector p0, p1, p2, p3;
+	float min_x, min_y, max_x, max_y;
+
+	struct pixman_f_transform ftransform;
+
+	VECTOR_FROM_POINT(p0, box->x1, box->y1)
+	VECTOR_FROM_POINT(p1, box->x2, box->y1)
+	VECTOR_FROM_POINT(p2, box->x2, box->y2)
+	VECTOR_FROM_POINT(p3, box->x1, box->y2)
+
+	pixman_f_transform_from_pixman_transform(&ftransform, transform);
+	pixman_f_transform_point(&ftransform, &p0);
+	pixman_f_transform_point(&ftransform, &p1);
+	pixman_f_transform_point(&ftransform, &p2);
+	pixman_f_transform_point(&ftransform, &p3);
+
+	min_x = MIN(p0.v[0], p1.v[0]);
+	min_x = MIN(min_x, p2.v[0]);
+	min_x = MIN(min_x, p3.v[0]);
+
+	min_y = MIN(p0.v[1], p1.v[1]);
+	min_y = MIN(min_y, p2.v[1]);
+	min_y = MIN(min_y, p3.v[1]);
+
+	max_x = MAX(p0.v[0], p1.v[0]);
+	max_x = MAX(max_x, p2.v[0]);
+	max_x = MAX(max_x, p3.v[0]);
+
+	max_y = MAX(p0.v[1], p1.v[1]);
+	max_y = MAX(max_y, p2.v[1]);
+	max_y = MAX(max_y, p3.v[1]);
+	box->x1 = floor(min_x) - 1;
+	box->y1 = floor(min_y) - 1;
+	box->x2 = ceil(max_x) + 1;
+	box->y2 = ceil(max_y) + 1;
+}
+
+static void
+_glamor_process_transformed_clipped_region(glamor_pixmap_private *priv,
+					int repeat_type,
+					glamor_pixmap_clipped_regions *clipped_regions,
+					int *n_regions, int *need_clean_fbo)
+{
+	int shift_x, shift_y;
+	if (*n_regions != 1) {
+	/* Merge all source regions into one region. */
+		glamor_merge_clipped_regions(priv, repeat_type,
+					     clipped_regions, n_regions,
+					     need_clean_fbo);
+	} else {
+		SET_PIXMAP_FBO_CURRENT(priv,
+				       clipped_regions[0].block_idx);
+		if (repeat_type == RepeatReflect || repeat_type == RepeatNormal) {
+			/* The required source areas are in one region,
+			 * we need to shift the corresponding box's coords to proper position,
+			 * thus we can calculate the relative coords correctly.*/
+			BoxPtr temp_box;
+			int rem;
+			temp_box = RegionExtents(clipped_regions[0].region);
+			modulus(temp_box->x1, priv->base.pixmap->drawable.width, rem);
+			shift_x = (temp_box->x1 - rem) / priv->base.pixmap->drawable.width;
+			modulus(temp_box->y1, priv->base.pixmap->drawable.height, rem);
+			shift_y = (temp_box->y1 - rem) / priv->base.pixmap->drawable.height;
+
+			if (shift_x != 0) {
+				priv->large.box.x1 += shift_x * priv->base.pixmap->drawable.width;
+				priv->large.box.x2 += shift_x * priv->base.pixmap->drawable.width;
+			}
+			if (shift_y != 0) {
+				priv->large.box.y1 += shift_y * priv->base.pixmap->drawable.height;
+				priv->large.box.y2 += shift_y * priv->base.pixmap->drawable.height;
+			}
+		}
+	}
+}
+
+
+Bool
+glamor_composite_largepixmap_region(CARD8 op,
+			  PicturePtr source,
+			  PicturePtr mask,
+			  PicturePtr dest,
+			  glamor_pixmap_private * source_pixmap_priv,
+			  glamor_pixmap_private * mask_pixmap_priv,
+			  glamor_pixmap_private * dest_pixmap_priv,
+			  RegionPtr region, Bool force_clip,
+			  INT16 x_source,
+			  INT16 y_source,
+			  INT16 x_mask,
+			  INT16 y_mask,
+			  INT16 x_dest, INT16 y_dest,
+			  CARD16 width, CARD16 height)
+{
+	glamor_screen_private *glamor_priv;
+	glamor_pixmap_clipped_regions *clipped_dest_regions;
+	glamor_pixmap_clipped_regions *clipped_source_regions;
+	glamor_pixmap_clipped_regions *clipped_mask_regions;
+	int n_dest_regions;
+	int n_mask_regions;
+	int n_source_regions;
+	int i,j,k;
+	int need_clean_source_fbo = 0;
+	int need_clean_mask_fbo = 0;
+	int is_normal_source_fbo = 0;
+	int is_normal_mask_fbo = 0;
+	int fixed_block_width, fixed_block_height;
+	int null_source, null_mask;
+	glamor_pixmap_private * need_free_source_pixmap_priv = NULL;
+	glamor_pixmap_private * need_free_mask_pixmap_priv = NULL;
+	int source_repeat_type = 0, mask_repeat_type = 0;
+	int ok = TRUE;
+
+	if (source->repeat)
+		source_repeat_type = source->repeatType;
+	else
+		source_repeat_type = RepeatNone;
+
+	if (mask && mask->repeat)
+		mask_repeat_type = mask->repeatType;
+	else
+		mask_repeat_type = RepeatNone;
+
+	glamor_priv = dest_pixmap_priv->base.glamor_priv;
+	fixed_block_width = glamor_priv->max_fbo_size;
+	fixed_block_height = glamor_priv->max_fbo_size;
+	/* If we got an totally out-of-box region for a source or mask
+	 * region without repeat, we need to set it as null_source and
+	 * give it a solid color (0,0,0,0). */
+	null_source = 0;
+	null_mask = 0;
+	RegionTranslate(region, -dest->pDrawable->x,
+			-dest->pDrawable->y);
+
+	/* need to transform the dest region to the correct sourcei/mask region.
+	 * it's a little complex, as one single edge of the
+	 * target region may be transformed to cross a block boundary of the
+	 * source or mask. Then it's impossible to handle it as usual way.
+	 * We may have to split the original dest region to smaller region, and
+	 * make sure each region's transformed region can fit into one texture,
+	 * and then continue this loop again, and each time when a transformed region
+	 * cross the bound, we need to copy it to a single pixmap and do the composition
+	 * with the new pixmap. If the transformed region doesn't cross a source/mask's
+	 * boundary then we don't need to copy.
+	 *
+	 */
+	if (source_pixmap_priv
+	    && source->transform
+	    && source_pixmap_priv->type == GLAMOR_TEXTURE_LARGE) {
+		int source_transformed_block_width, source_transformed_block_height;
+		if (!glamor_get_transform_block_size(source->transform,
+					  source_pixmap_priv->large.block_w,
+					  source_pixmap_priv->large.block_h,
+					  &source_transformed_block_width,
+					  &source_transformed_block_height)) {
+			DEBUGF("source block size less than 1, fallback.\n");
+			RegionTranslate(region, dest->pDrawable->x,
+					dest->pDrawable->y);
+			return FALSE;
+		}
+		fixed_block_width = min(fixed_block_width , source_transformed_block_width);
+		fixed_block_height = min(fixed_block_height , source_transformed_block_height);
+		DEBUGF("new source block size %d x %d \n", fixed_block_width, fixed_block_height);
+	}
+
+	if (mask_pixmap_priv
+	    && mask->transform
+	    && mask_pixmap_priv->type == GLAMOR_TEXTURE_LARGE) {
+		int mask_transformed_block_width, mask_transformed_block_height;
+		if (!glamor_get_transform_block_size(mask->transform,
+					  mask_pixmap_priv->large.block_w,
+					  mask_pixmap_priv->large.block_h,
+					  &mask_transformed_block_width,
+					  &mask_transformed_block_height)) {
+			DEBUGF("mask block size less than 1, fallback.\n");
+			RegionTranslate(region, dest->pDrawable->x,
+					dest->pDrawable->y);
+			return FALSE;
+		}
+		fixed_block_width = min(fixed_block_width , mask_transformed_block_width);
+		fixed_block_height = min(fixed_block_height , mask_transformed_block_height);
+		DEBUGF("new mask block size %d x %d \n", fixed_block_width, fixed_block_height);
+	}
+
+	/*compute the correct block width and height whose transformed source/mask
+	 *region can fit into one texture.*/
+	if (force_clip || fixed_block_width < glamor_priv->max_fbo_size
+	    || fixed_block_height < glamor_priv->max_fbo_size)
+		clipped_dest_regions = glamor_compute_clipped_regions_ext(dest_pixmap_priv,
+									  region,
+									  &n_dest_regions,
+									  fixed_block_width,
+									  fixed_block_height,
+									  0, 0);
+	else
+		clipped_dest_regions = glamor_compute_clipped_regions(dest_pixmap_priv,
+								      region,
+								      &n_dest_regions,
+								      0, 0, 0);
+	DEBUGF("dest clipped result %d region: \n", n_dest_regions);
+	if (source_pixmap_priv
+	    && (source_pixmap_priv == dest_pixmap_priv || source_pixmap_priv == mask_pixmap_priv)
+		&& source_pixmap_priv->type == GLAMOR_TEXTURE_LARGE) {
+		/* XXX self-copy...*/
+		need_free_source_pixmap_priv = source_pixmap_priv;
+		source_pixmap_priv = malloc(sizeof(*source_pixmap_priv));
+		*source_pixmap_priv = *need_free_source_pixmap_priv;
+		need_free_source_pixmap_priv = source_pixmap_priv;
+	}
+	assert(mask_pixmap_priv != dest_pixmap_priv);
+
+	for(i = 0; i < n_dest_regions; i++)
+	{
+		DEBUGF("dest region %d  idx %d\n", i, clipped_dest_regions[i].block_idx);
+		DEBUGRegionPrint(clipped_dest_regions[i].region);
+		SET_PIXMAP_FBO_CURRENT(dest_pixmap_priv, clipped_dest_regions[i].block_idx);
+		if ( source_pixmap_priv && source_pixmap_priv->type == GLAMOR_TEXTURE_LARGE) {
+			if (!source->transform && source_repeat_type != RepeatPad) {
+				RegionTranslate(clipped_dest_regions[i].region,
+						x_source - x_dest,
+						y_source - y_dest);
+				clipped_source_regions = glamor_compute_clipped_regions(source_pixmap_priv,
+										        clipped_dest_regions[i].region,
+										        &n_source_regions, source_repeat_type,
+											0, 0);
+				is_normal_source_fbo = 1;
+			}
+			else {
+				clipped_source_regions = glamor_compute_transform_clipped_regions(source_pixmap_priv,
+									source->transform,
+									clipped_dest_regions[i].region,
+									&n_source_regions,
+									x_source - x_dest, y_source - y_dest,
+									source_repeat_type, 0, 0);
+				is_normal_source_fbo = 0;
+				if (n_source_regions == 0) {
+					/* Pad the out-of-box region to (0,0,0,0). */
+					null_source = 1;
+					n_source_regions = 1;
+				} else
+					_glamor_process_transformed_clipped_region(source_pixmap_priv,
+						source_repeat_type, clipped_source_regions, &n_source_regions,
+						&need_clean_source_fbo);
+			}
+			DEBUGF("source clipped result %d region: \n", n_source_regions);
+			for(j = 0; j < n_source_regions; j++)
+			{
+				if (is_normal_source_fbo)
+					SET_PIXMAP_FBO_CURRENT(source_pixmap_priv,
+							       clipped_source_regions[j].block_idx);
+
+				if (mask_pixmap_priv && mask_pixmap_priv->type == GLAMOR_TEXTURE_LARGE) {
+					if (is_normal_mask_fbo && is_normal_source_fbo) {
+						/* both mask and source are normal fbo box without transform or repeatpad.
+						 * The region is clipped against source and then we clip it against mask here.*/
+						DEBUGF("source region %d  idx %d\n", j, clipped_source_regions[j].block_idx);
+						DEBUGRegionPrint(clipped_source_regions[j].region);
+						RegionTranslate(clipped_source_regions[j].region,
+								- x_source + x_mask,
+							- y_source + y_mask);
+						clipped_mask_regions = glamor_compute_clipped_regions(mask_pixmap_priv,
+											     clipped_source_regions[j].region,
+											     &n_mask_regions, mask_repeat_type,
+											     0, 0);
+						is_normal_mask_fbo = 1;
+					} else if (is_normal_mask_fbo && !is_normal_source_fbo) {
+						assert(n_source_regions == 1);
+						/* The source fbo is not a normal fbo box, it has transform or repeatpad.
+						 * the valid clip region should be the clip dest region rather than the
+						 * clip source region.*/
+						RegionTranslate(clipped_dest_regions[i].region,
+								- x_dest + x_mask,
+								- y_dest + y_mask);
+						clipped_mask_regions = glamor_compute_clipped_regions(mask_pixmap_priv,
+											     clipped_dest_regions[i].region,
+											     &n_mask_regions, mask_repeat_type,
+											     0, 0);
+						is_normal_mask_fbo = 1;
+					} else {
+						/* This mask region has transform or repeatpad, we need clip it agains the previous
+						 * valid region rather than the mask region. */
+						if (!is_normal_source_fbo)
+							clipped_mask_regions = glamor_compute_transform_clipped_regions(mask_pixmap_priv,
+												mask->transform,
+												clipped_dest_regions[i].region,
+												&n_mask_regions,
+												x_mask - x_dest,
+												y_mask - y_dest,
+												mask_repeat_type, 0, 0);
+						else
+							clipped_mask_regions = glamor_compute_transform_clipped_regions(mask_pixmap_priv,
+												mask->transform,
+												clipped_source_regions[j].region,
+												&n_mask_regions,
+												x_mask - x_source, y_mask - y_source,
+												mask_repeat_type, 0, 0);
+						is_normal_mask_fbo = 0;
+						if (n_mask_regions == 0) {
+						/* Pad the out-of-box region to (0,0,0,0). */
+							null_mask = 1;
+							n_mask_regions = 1;
+						} else
+							_glamor_process_transformed_clipped_region(mask_pixmap_priv,
+								mask_repeat_type, clipped_mask_regions, &n_mask_regions,
+								&need_clean_mask_fbo);
+					}
+					DEBUGF("mask clipped result %d region: \n", n_mask_regions);
+
+#define COMPOSITE_REGION(region) do {				\
+	if (!glamor_composite_clipped_region(op,		\
+			 null_source ? NULL : source,		\
+			 null_mask ? NULL : mask, dest,		\
+			 null_source ? NULL : source_pixmap_priv, \
+			 null_mask ? NULL : mask_pixmap_priv, 	\
+			 dest_pixmap_priv, region,		\
+			 x_source, y_source, x_mask, y_mask,	\
+			 x_dest, y_dest)) {			\
+		assert(0);					\
+	}							\
+   } while(0)
+
+					for(k = 0; k < n_mask_regions; k++)
+					{
+						DEBUGF("mask region %d  idx %d\n", k, clipped_mask_regions[k].block_idx);
+						DEBUGRegionPrint(clipped_mask_regions[k].region);
+						if (is_normal_mask_fbo) {
+							SET_PIXMAP_FBO_CURRENT(mask_pixmap_priv,
+								       clipped_mask_regions[k].block_idx);
+							DEBUGF("mask fbo off %d %d \n",
+								mask_pixmap_priv->large.box.x1,
+								mask_pixmap_priv->large.box.y1);
+							DEBUGF("start composite mask hasn't transform.\n");
+							RegionTranslate(clipped_mask_regions[k].region,
+									x_dest - x_mask + dest->pDrawable->x,
+									y_dest - y_mask + dest->pDrawable->y);
+							COMPOSITE_REGION(clipped_mask_regions[k].region);
+						} else if (!is_normal_mask_fbo && !is_normal_source_fbo) {
+							DEBUGF("start composite both mask and source have transform.\n");
+							RegionTranslate(clipped_dest_regions[i].region,
+									dest->pDrawable->x,
+									dest->pDrawable->y);
+							COMPOSITE_REGION(clipped_dest_regions[i].region);
+						} else {
+							DEBUGF("start composite only mask has transform.\n");
+							RegionTranslate(clipped_source_regions[j].region,
+									x_dest - x_source + dest->pDrawable->x,
+									y_dest - y_source + dest->pDrawable->y);
+							COMPOSITE_REGION(clipped_source_regions[j].region);
+						}
+						RegionDestroy(clipped_mask_regions[k].region);
+					}
+					free(clipped_mask_regions);
+					if (null_mask) null_mask = 0;
+					if (need_clean_mask_fbo) {
+						assert(is_normal_mask_fbo == 0);
+						glamor_destroy_fbo(mask_pixmap_priv->base.fbo);
+						mask_pixmap_priv->base.fbo = NULL;
+						need_clean_mask_fbo = 0;
+					}
+				} else {
+					if (is_normal_source_fbo) {
+						RegionTranslate(clipped_source_regions[j].region,
+								-x_source + x_dest + dest->pDrawable->x,
+								-y_source + y_dest + dest->pDrawable->y);
+						COMPOSITE_REGION(clipped_source_regions[j].region);
+					} else {
+						/* Source has transform or repeatPad. dest regions is the right
+						 * region to do the composite. */
+						RegionTranslate(clipped_dest_regions[i].region,
+								dest->pDrawable->x,
+								dest->pDrawable->y);
+						COMPOSITE_REGION(clipped_dest_regions[i].region);
+					}
+				}
+				if (clipped_source_regions && clipped_source_regions[j].region)
+					RegionDestroy(clipped_source_regions[j].region);
+			}
+			free(clipped_source_regions);
+			if (null_source) null_source = 0;
+			if (need_clean_source_fbo) {
+				assert(is_normal_source_fbo == 0);
+				glamor_destroy_fbo(source_pixmap_priv->base.fbo);
+				source_pixmap_priv->base.fbo = NULL;
+				need_clean_source_fbo = 0;
+			}
+		}
+		else {
+			if (mask_pixmap_priv && mask_pixmap_priv->type == GLAMOR_TEXTURE_LARGE) {
+				if (!mask->transform && mask_repeat_type != RepeatPad) {
+					RegionTranslate(clipped_dest_regions[i].region,
+							x_mask - x_dest,
+							y_mask - y_dest);
+					clipped_mask_regions = glamor_compute_clipped_regions(mask_pixmap_priv,
+								        clipped_dest_regions[i].region,
+								        &n_mask_regions, mask_repeat_type, 0, 0);
+					is_normal_mask_fbo = 1;
+				}
+				else {
+					clipped_mask_regions = glamor_compute_transform_clipped_regions(mask_pixmap_priv,
+										mask->transform,
+										clipped_dest_regions[i].region,
+										&n_mask_regions,
+										x_mask - x_dest, y_mask - y_dest,
+										mask_repeat_type, 0, 0);
+					is_normal_mask_fbo = 0;
+					if (n_mask_regions == 0) {
+						/* Pad the out-of-box region to (0,0,0,0). */
+						null_mask = 1;
+						n_mask_regions = 1;
+					} else
+						_glamor_process_transformed_clipped_region(mask_pixmap_priv,
+							mask_repeat_type, clipped_mask_regions, &n_mask_regions,
+							&need_clean_mask_fbo);
+				}
+
+				for(k = 0; k < n_mask_regions; k++)
+				{
+					DEBUGF("mask region %d  idx %d\n", k, clipped_mask_regions[k].block_idx);
+					DEBUGRegionPrint(clipped_mask_regions[k].region);
+					if (is_normal_mask_fbo) {
+						SET_PIXMAP_FBO_CURRENT(mask_pixmap_priv,
+								       clipped_mask_regions[k].block_idx);
+						RegionTranslate(clipped_mask_regions[k].region,
+								x_dest - x_mask + dest->pDrawable->x,
+								y_dest - y_mask + dest->pDrawable->y);
+						COMPOSITE_REGION(clipped_mask_regions[k].region);
+					} else {
+						RegionTranslate(clipped_dest_regions[i].region,
+								dest->pDrawable->x,
+								dest->pDrawable->y);
+						COMPOSITE_REGION(clipped_dest_regions[i].region);
+					}
+					RegionDestroy(clipped_mask_regions[k].region);
+				}
+				free(clipped_mask_regions);
+				if (null_mask) null_mask = 0;
+				if (need_clean_mask_fbo) {
+					glamor_destroy_fbo(mask_pixmap_priv->base.fbo);
+					mask_pixmap_priv->base.fbo = NULL;
+					need_clean_mask_fbo = 0;
+				}
+			}
+			else {
+				RegionTranslate(clipped_dest_regions[i].region,
+						dest->pDrawable->x,
+						dest->pDrawable->y);
+				COMPOSITE_REGION(clipped_dest_regions[i].region);
+			}
+		}
+		RegionDestroy(clipped_dest_regions[i].region);
+	}
+	free(clipped_dest_regions);
+	free(need_free_source_pixmap_priv);
+	free(need_free_mask_pixmap_priv);
+	ok = TRUE;
+	return ok;
+}
diff --git a/glamor/glamor_picture.c b/glamor/glamor_picture.c
new file mode 100644
index 000000000..7d5ffbb76
--- /dev/null
+++ b/glamor/glamor_picture.c
@@ -0,0 +1,131 @@
+/*
+ * Copyright © 2009 Intel Corporation
+ * Copyright © 1998 Keith Packard
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ *
+ * Authors:
+ *    Zhigang Gong <zhigang.gong@gmail.com>
+ *
+ */
+
+#include <stdlib.h>
+
+#include "glamor_priv.h"
+#include "mipict.h"
+
+/* Upload picture to texture.  We may need to flip the y axis or
+ * wire alpha to 1. So we may conditional create fbo for the picture.
+ * */
+enum glamor_pixmap_status
+glamor_upload_picture_to_texture(PicturePtr picture)
+{
+	PixmapPtr pixmap;
+	assert(picture->pDrawable);
+	pixmap = glamor_get_drawable_pixmap(picture->pDrawable);
+
+	return glamor_upload_pixmap_to_texture(pixmap);
+}
+
+
+Bool
+glamor_prepare_access_picture(PicturePtr picture, glamor_access_t access)
+{
+	if (!picture || !picture->pDrawable)
+		return TRUE;
+
+	return glamor_prepare_access(picture->pDrawable, access);
+}
+
+void
+glamor_finish_access_picture(PicturePtr picture, glamor_access_t access)
+{
+	if (!picture || !picture->pDrawable)
+		return;
+
+	glamor_finish_access(picture->pDrawable, access);
+}
+
+/* 
+ * We should already have drawable attached to it, if it has one.
+ * Then set the attached pixmap to is_picture format, and set
+ * the pict format.
+ * */
+int
+glamor_create_picture(PicturePtr picture)
+{
+	PixmapPtr pixmap;
+	glamor_pixmap_private *pixmap_priv;
+
+	if (!picture || !picture->pDrawable)
+		return 0;
+
+	pixmap = glamor_get_drawable_pixmap(picture->pDrawable);
+	pixmap_priv = glamor_get_pixmap_private(pixmap);
+	if (!pixmap_priv) {
+	/* We must create a pixmap priv to track the picture format even
+ 	 * if the pixmap is a pure in memory pixmap. The reason is that
+ 	 * we may need to upload this pixmap to a texture on the fly. During
+ 	 * the uploading, we need to know the picture format. */
+		glamor_set_pixmap_type(pixmap, GLAMOR_MEMORY);
+		pixmap_priv = glamor_get_pixmap_private(pixmap);
+	} else {
+		if (GLAMOR_PIXMAP_PRIV_HAS_FBO(pixmap_priv)) {
+			/* If the picture format is not compatible with glamor fbo format,
+			 * we have to mark this pixmap as a separated texture, and don't
+			 * fallback to DDX layer. */
+			if (pixmap_priv->type == GLAMOR_TEXTURE_DRM
+			    && !glamor_pict_format_is_compatible(picture->format,
+								 pixmap->drawable.depth))
+				glamor_set_pixmap_type(pixmap, GLAMOR_SEPARATE_TEXTURE);
+		}
+	}
+
+	pixmap_priv->base.is_picture = 1;
+	pixmap_priv->base.picture = picture;
+
+	return miCreatePicture(picture);
+}
+
+void
+glamor_destroy_picture(PicturePtr picture)
+{
+	PixmapPtr pixmap;
+	glamor_pixmap_private *pixmap_priv;
+
+	if (!picture || !picture->pDrawable)
+		return;
+
+	pixmap = glamor_get_drawable_pixmap(picture->pDrawable);
+	pixmap_priv = glamor_get_pixmap_private(pixmap);
+
+	if (pixmap_priv) {
+		pixmap_priv->base.is_picture = 0;
+		pixmap_priv->base.picture = NULL;
+	}
+	miDestroyPicture(picture);
+}
+
+void
+glamor_picture_format_fixup(PicturePtr picture,
+			    glamor_pixmap_private * pixmap_priv)
+{
+	pixmap_priv->base.picture = picture;
+}
diff --git a/glamor/glamor_pixmap.c b/glamor/glamor_pixmap.c
new file mode 100644
index 000000000..84694ec3c
--- /dev/null
+++ b/glamor/glamor_pixmap.c
@@ -0,0 +1,1433 @@
+/*
+ * Copyright © 2001 Keith Packard
+ * Copyright © 2008 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ *
+ * Authors:
+ *    Eric Anholt <eric@anholt.net>
+ *    Zhigang Gong <zhigang.gong@linux.intel.com>
+ *
+ */
+
+#include <stdlib.h>
+
+#include "glamor_priv.h"
+/**
+ * Sets the offsets to add to coordinates to make them address the same bits in
+ * the backing drawable. These coordinates are nonzero only for redirected
+ * windows.
+ */
+void
+glamor_get_drawable_deltas(DrawablePtr drawable, PixmapPtr pixmap,
+			   int *x, int *y)
+{
+#ifdef COMPOSITE
+	if (drawable->type == DRAWABLE_WINDOW) {
+		*x = -pixmap->screen_x;
+		*y = -pixmap->screen_y;
+		return;
+	}
+#endif
+
+	*x = 0;
+	*y = 0;
+}
+
+
+void
+glamor_pixmap_init(ScreenPtr screen)
+{
+
+}
+
+void
+glamor_pixmap_fini(ScreenPtr screen)
+{
+}
+
+void
+glamor_set_destination_pixmap_fbo(glamor_pixmap_fbo * fbo, int x0, int y0, int width, int height)
+{
+	glamor_gl_dispatch *dispatch = glamor_get_dispatch(fbo->glamor_priv);
+	dispatch->glBindFramebuffer(GL_FRAMEBUFFER, fbo->fb);
+#ifndef GLAMOR_GLES2
+	dispatch->glMatrixMode(GL_PROJECTION);
+	dispatch->glLoadIdentity();
+	dispatch->glMatrixMode(GL_MODELVIEW);
+	dispatch->glLoadIdentity();
+#endif
+	dispatch->glViewport(x0, y0,
+			     width, height);
+
+	glamor_put_dispatch(fbo->glamor_priv);
+}
+
+void
+glamor_set_destination_pixmap_priv_nc(glamor_pixmap_private * pixmap_priv)
+{
+	int w,h;
+
+	PIXMAP_PRIV_GET_ACTUAL_SIZE(pixmap_priv, w, h);
+	glamor_set_destination_pixmap_fbo(pixmap_priv->base.fbo, 0, 0,
+					  w, h);
+}
+
+int
+glamor_set_destination_pixmap_priv(glamor_pixmap_private * pixmap_priv)
+{
+	if (!GLAMOR_PIXMAP_PRIV_HAS_FBO(pixmap_priv))
+		return -1;
+
+	glamor_set_destination_pixmap_priv_nc(pixmap_priv);
+	return 0;
+}
+
+int
+glamor_set_destination_pixmap(PixmapPtr pixmap)
+{
+	int err;
+	glamor_pixmap_private *pixmap_priv =
+	    glamor_get_pixmap_private(pixmap);
+
+	err = glamor_set_destination_pixmap_priv(pixmap_priv);
+	return err;
+}
+
+Bool
+glamor_set_planemask(PixmapPtr pixmap, unsigned long planemask)
+{
+	if (glamor_pm_is_solid(&pixmap->drawable, planemask)) {
+		return GL_TRUE;
+	}
+
+	glamor_fallback("unsupported planemask %lx\n", planemask);
+	return GL_FALSE;
+}
+
+Bool
+glamor_set_alu(struct glamor_gl_dispatch *dispatch, unsigned char alu)
+{
+#ifndef GLAMOR_GLES2
+	if (alu == GXcopy) {
+		dispatch->glDisable(GL_COLOR_LOGIC_OP);
+		return TRUE;
+	}
+	dispatch->glEnable(GL_COLOR_LOGIC_OP);
+	switch (alu) {
+	case GXclear:
+		dispatch->glLogicOp(GL_CLEAR);
+		break;
+	case GXand:
+		dispatch->glLogicOp(GL_AND);
+		break;
+	case GXandReverse:
+		dispatch->glLogicOp(GL_AND_REVERSE);
+		break;
+	case GXandInverted:
+		dispatch->glLogicOp(GL_AND_INVERTED);
+		break;
+	case GXnoop:
+		dispatch->glLogicOp(GL_NOOP);
+		break;
+	case GXxor:
+		dispatch->glLogicOp(GL_XOR);
+		break;
+	case GXor:
+		dispatch->glLogicOp(GL_OR);
+		break;
+	case GXnor:
+		dispatch->glLogicOp(GL_NOR);
+		break;
+	case GXequiv:
+		dispatch->glLogicOp(GL_EQUIV);
+		break;
+	case GXinvert:
+		dispatch->glLogicOp(GL_INVERT);
+		break;
+	case GXorReverse:
+		dispatch->glLogicOp(GL_OR_REVERSE);
+		break;
+	case GXcopyInverted:
+		dispatch->glLogicOp(GL_COPY_INVERTED);
+		break;
+	case GXorInverted:
+		dispatch->glLogicOp(GL_OR_INVERTED);
+		break;
+	case GXnand:
+		dispatch->glLogicOp(GL_NAND);
+		break;
+	case GXset:
+		dispatch->glLogicOp(GL_SET);
+		break;
+	default:
+		glamor_fallback("unsupported alu %x\n", alu);
+		return FALSE;
+	}
+#else
+	if (alu != GXcopy)
+		return FALSE;
+#endif
+	return TRUE;
+}
+
+static void *
+_glamor_color_convert_a1_a8(void *src_bits, void *dst_bits, int w, int h, int stride, int revert)
+{
+	PictFormatShort dst_format, src_format;
+	pixman_image_t *dst_image;
+	pixman_image_t *src_image;
+	int src_stride;
+
+	if (revert == REVERT_UPLOADING_A1) {
+		src_format = PICT_a1;
+		dst_format = PICT_a8;
+		src_stride = PixmapBytePad(w, 1);
+	} else {
+		dst_format = PICT_a1;
+		src_format = PICT_a8;
+		src_stride = (((w * 8 + 7) / 8) + 3) & ~3;
+	}
+
+	dst_image = pixman_image_create_bits(dst_format,
+					     w, h,
+					     dst_bits,
+					     stride);
+	if (dst_image == NULL) {
+		return NULL;
+	}
+
+	src_image = pixman_image_create_bits(src_format,
+					     w, h,
+					     src_bits,
+					     src_stride);
+
+	if (src_image == NULL) {
+		pixman_image_unref(dst_image);
+		return NULL;
+	}
+
+	pixman_image_composite(PictOpSrc, src_image, NULL, dst_image,
+			       0, 0, 0, 0, 0, 0,
+			       w,h);
+
+	pixman_image_unref(src_image);
+	pixman_image_unref(dst_image);
+	return dst_bits;
+}
+
+#define ADJUST_BITS(d, src_bits, dst_bits)	(((dst_bits) == (src_bits)) ? (d) : 				\
+							(((dst_bits) > (src_bits)) ? 				\
+							  (((d) << ((dst_bits) - (src_bits))) 			\
+								   + (( 1 << ((dst_bits) - (src_bits))) >> 1))	\
+								:  ((d) >> ((src_bits) - (dst_bits)))))
+
+#define GLAMOR_DO_CONVERT(src, dst, no_alpha, swap,		\
+			  a_shift_src, a_bits_src,		\
+			  b_shift_src, b_bits_src,		\
+			  g_shift_src, g_bits_src,		\
+			  r_shift_src, r_bits_src,		\
+			  a_shift, a_bits,			\
+			  b_shift, b_bits,			\
+			  g_shift, g_bits,			\
+			  r_shift, r_bits)			\
+	{								\
+		typeof(src) a,b,g,r;					\
+		typeof(src) a_mask_src, b_mask_src, g_mask_src, r_mask_src;\
+		a_mask_src = (((1 << (a_bits_src)) - 1) << a_shift_src);\
+		b_mask_src = (((1 << (b_bits_src)) - 1) << b_shift_src);\
+		g_mask_src = (((1 << (g_bits_src)) - 1) << g_shift_src);\
+		r_mask_src = (((1 << (r_bits_src)) - 1) << r_shift_src);\
+		if (no_alpha)						\
+			a = (a_mask_src) >> (a_shift_src);			\
+		else							\
+			a = ((src) & (a_mask_src)) >> (a_shift_src);	\
+		b = ((src) & (b_mask_src)) >> (b_shift_src);		\
+		g = ((src) & (g_mask_src)) >> (g_shift_src);		\
+		r = ((src) & (r_mask_src)) >> (r_shift_src);		\
+		a = ADJUST_BITS(a, a_bits_src, a_bits);			\
+		b = ADJUST_BITS(b, b_bits_src, b_bits);			\
+		g = ADJUST_BITS(g, g_bits_src, g_bits);			\
+		r = ADJUST_BITS(r, r_bits_src, r_bits);			\
+		if (swap == 0)						\
+			(*dst) = ((a) << (a_shift)) | ((b) << (b_shift)) | ((g) << (g_shift)) | ((r) << (r_shift)); \
+		else 												    \
+			(*dst) = ((a) << (a_shift)) | ((r) << (b_shift)) | ((g) << (g_shift)) | ((b) << (r_shift)); \
+	}
+
+static void *
+_glamor_color_revert_x2b10g10r10(void *src_bits, void *dst_bits, int w, int h, int stride, int no_alpha, int revert, int swap_rb)
+{
+	int x,y;
+	unsigned int *words, *saved_words, *source_words;
+	int swap = !(swap_rb == SWAP_NONE_DOWNLOADING || swap_rb == SWAP_NONE_UPLOADING);
+
+	source_words = src_bits;
+	words = dst_bits;
+	saved_words = words;
+
+	for (y = 0; y < h; y++)
+	{
+		DEBUGF("Line %d :  ", y);
+		for (x = 0; x < w; x++)
+		{
+			unsigned int pixel = source_words[x];
+
+			if (revert == REVERT_DOWNLOADING_2_10_10_10)
+				GLAMOR_DO_CONVERT(pixel, &words[x], no_alpha, swap,
+						  24, 8, 16, 8, 8, 8, 0, 8,
+						  30, 2, 20, 10, 10, 10, 0, 10)
+			else
+				GLAMOR_DO_CONVERT(pixel, &words[x], no_alpha, swap,
+						  30, 2, 20, 10, 10, 10, 0, 10,
+						  24, 8, 16, 8, 8, 8, 0, 8);
+			DEBUGF("%x:%x ", pixel, words[x]);
+		}
+		DEBUGF("\n");
+		words += stride / sizeof(*words);
+		source_words += stride / sizeof(*words);
+	}
+	DEBUGF("\n");
+	return saved_words;
+
+}
+
+static void *
+_glamor_color_revert_x1b5g5r5(void *src_bits, void *dst_bits, int w, int h, int stride, int no_alpha, int revert, int swap_rb)
+{
+	int x,y;
+	unsigned short *words, *saved_words, *source_words;
+	int swap = !(swap_rb == SWAP_NONE_DOWNLOADING || swap_rb == SWAP_NONE_UPLOADING);
+
+	words = dst_bits;
+	source_words = src_bits;
+	saved_words = words;
+
+	for (y = 0; y < h; y++)
+	{
+		DEBUGF("Line %d :  ", y);
+		for (x = 0; x < w; x++)
+		{
+			unsigned short pixel = source_words[x];
+
+			if (revert == REVERT_DOWNLOADING_1_5_5_5)
+				GLAMOR_DO_CONVERT(pixel, &words[x], no_alpha, swap,
+						  0, 1, 1, 5, 6, 5, 11, 5,
+						  15, 1, 10, 5, 5, 5, 0, 5)
+			else
+				GLAMOR_DO_CONVERT(pixel, &words[x], no_alpha, swap,
+						  15, 1, 10, 5, 5, 5, 0, 5,
+						  0, 1, 1, 5, 6, 5, 11, 5);
+			DEBUGF("%04x:%04x ", pixel, words[x]);
+		}
+		DEBUGF("\n");
+		words += stride / sizeof(*words);
+		source_words += stride / sizeof(*words);
+	}
+	DEBUGF("\n");
+	return saved_words;
+}
+
+/*
+ * This function is to convert an unsupported color format to/from a
+ * supported GL format.
+ * Here are the current scenarios:
+ *
+ * @no_alpha:
+ * 	If it is set, then we need to wire the alpha value to 1.
+ * @revert:
+	REVERT_DOWNLOADING_A1		: convert an Alpha8 buffer to a A1 buffer.
+	REVERT_UPLOADING_A1		: convert an A1 buffer to an Alpha8 buffer
+	REVERT_DOWNLOADING_2_10_10_10 	: convert r10G10b10X2 to X2B10G10R10
+	REVERT_UPLOADING_2_10_10_10 	: convert X2B10G10R10 to R10G10B10X2
+	REVERT_DOWNLOADING_1_5_5_5  	: convert B5G5R5X1 to X1R5G5B5
+	REVERT_UPLOADING_1_5_5_5    	: convert X1R5G5B5 to B5G5R5X1
+   @swap_rb: if we have the swap_rb set, then we need to swap the R and B's position.
+ *
+ */
+
+static void *
+glamor_color_convert_to_bits(void *src_bits, void *dst_bits, int w, int h, int stride, int no_alpha, int revert, int swap_rb)
+{
+	if (revert == REVERT_DOWNLOADING_A1 || revert == REVERT_UPLOADING_A1) {
+		return _glamor_color_convert_a1_a8(src_bits, dst_bits, w, h, stride, revert);
+	} else if (revert == REVERT_DOWNLOADING_2_10_10_10 || revert == REVERT_UPLOADING_2_10_10_10) {
+		return _glamor_color_revert_x2b10g10r10(src_bits, dst_bits, w, h, stride, no_alpha, revert, swap_rb);
+	} else if (revert == REVERT_DOWNLOADING_1_5_5_5 || revert == REVERT_UPLOADING_1_5_5_5) {
+		return _glamor_color_revert_x1b5g5r5(src_bits, dst_bits, w, h, stride, no_alpha, revert, swap_rb);
+	} else
+		ErrorF("convert a non-supported mode %x.\n", revert);
+
+	return NULL;
+}
+
+/**
+ * Upload pixmap to a specified texture.
+ * This texture may not be the one attached to it.
+ **/
+int in_restore = 0;
+static void
+__glamor_upload_pixmap_to_texture(PixmapPtr pixmap, unsigned int *tex,
+				  GLenum format,
+				  GLenum type,
+				  int x, int y, int w, int h,
+				  void *bits, int pbo)
+{
+	glamor_screen_private *glamor_priv =
+	    glamor_get_screen_private(pixmap->drawable.pScreen);
+	glamor_gl_dispatch *dispatch;
+	int non_sub = 0;
+	unsigned int iformat = 0;
+
+	dispatch = glamor_get_dispatch(glamor_priv);
+	if (*tex == 0) {
+		dispatch->glGenTextures(1, tex);
+		if (glamor_priv->gl_flavor == GLAMOR_GL_DESKTOP)
+			gl_iformat_for_depth(pixmap->drawable.depth, &iformat);
+		else
+			iformat = format;
+		non_sub = 1;
+		assert(x == 0 && y == 0);
+	}
+
+	dispatch->glBindTexture(GL_TEXTURE_2D, *tex);
+	dispatch->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER,
+				  GL_NEAREST);
+	dispatch->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER,
+				  GL_NEAREST);
+	dispatch->glPixelStorei(GL_UNPACK_ALIGNMENT, 4);
+
+	if (bits == NULL)
+		dispatch->glBindBuffer(GL_PIXEL_UNPACK_BUFFER,
+				       pbo);
+	if (non_sub)
+		dispatch->glTexImage2D(GL_TEXTURE_2D,
+				       0, iformat, w, h, 0,
+				       format, type,
+				       bits);
+	else
+		dispatch->glTexSubImage2D(GL_TEXTURE_2D,
+					  0, x, y, w, h,
+					  format, type,
+					  bits);
+
+	if (bits == NULL)
+		dispatch->glBindBuffer(GL_PIXEL_UNPACK_BUFFER, 0);
+	glamor_put_dispatch(glamor_priv);
+}
+
+static Bool
+_glamor_upload_bits_to_pixmap_texture(PixmapPtr pixmap, GLenum format, GLenum type,
+				     int no_alpha, int revert,
+				     int swap_rb, int x, int y, int w, int h,
+				     int stride, void* bits, int pbo)
+{
+	glamor_pixmap_private *pixmap_priv = glamor_get_pixmap_private(pixmap);
+	glamor_screen_private *glamor_priv = glamor_get_screen_private(pixmap->drawable.pScreen);
+	glamor_gl_dispatch *dispatch;
+	static float vertices[8];
+	static float texcoords[8] = { 0, 1,
+		1, 1,
+		1, 0,
+		0, 0
+	};
+	static float texcoords_inv[8] = { 0, 0,
+		1, 0,
+		1, 1,
+		0, 1
+	};
+	float *ptexcoords;
+	float dst_xscale, dst_yscale;
+	GLuint tex = 0;
+	int need_flip;
+	int need_free_bits = 0;
+
+	need_flip = !glamor_priv->yInverted;
+
+	if (bits == NULL)
+		goto ready_to_upload;
+
+	if (revert > REVERT_NORMAL) {
+		/* XXX if we are restoring the pixmap, then we may not need to allocate
+		 * new buffer */
+		void *converted_bits;
+
+		if (pixmap->drawable.depth == 1)
+			stride = (((w * 8 + 7) / 8) + 3) & ~3;
+
+		converted_bits = malloc(h * stride);
+
+		if (converted_bits == NULL)
+			return FALSE;
+		bits = glamor_color_convert_to_bits(bits, converted_bits, w, h,
+						    stride,
+						    no_alpha, revert, swap_rb);
+		if (bits == NULL) {
+			ErrorF("Failed to convert pixmap no_alpha %d,"
+				"revert mode %d, swap mode %d\n", no_alpha, revert, swap_rb);
+			return FALSE;
+		}
+		no_alpha = 0;
+		revert = REVERT_NONE;
+		swap_rb = SWAP_NONE_UPLOADING;
+		need_free_bits = TRUE;
+	}
+
+ready_to_upload:
+
+	/* Try fast path firstly, upload the pixmap to the texture attached
+	 * to the fbo directly. */
+	if (no_alpha == 0
+	    && revert == REVERT_NONE
+	    && swap_rb == SWAP_NONE_UPLOADING
+	    && !need_flip
+#ifdef WALKAROUND_LARGE_TEXTURE_MAP
+	    && pixmap_priv->type != GLAMOR_TEXTURE_LARGE
+#endif
+		) {
+		int fbo_x_off, fbo_y_off;
+		assert(pixmap_priv->base.fbo->tex);
+		pixmap_priv_get_fbo_off(pixmap_priv, &fbo_x_off, &fbo_y_off);
+
+		assert(x + fbo_x_off >= 0 && y + fbo_y_off >= 0);
+		assert(x + fbo_x_off + w <= pixmap_priv->base.fbo->width);
+		assert(y + fbo_y_off + h <= pixmap_priv->base.fbo->height);
+		__glamor_upload_pixmap_to_texture(pixmap, &pixmap_priv->base.fbo->tex,
+						  format, type,
+						  x + fbo_x_off, y + fbo_y_off, w, h,
+						  bits, pbo);
+		return TRUE;
+	}
+
+	if (need_flip)
+		ptexcoords = texcoords;
+	else
+		ptexcoords = texcoords_inv;
+
+	pixmap_priv_get_dest_scale(pixmap_priv, &dst_xscale, &dst_yscale);
+	glamor_set_normalize_vcoords(pixmap_priv, dst_xscale,
+				     dst_yscale,
+				     x, y,
+				     x + w, y + h,
+				     glamor_priv->yInverted,
+				     vertices);
+	/* Slow path, we need to flip y or wire alpha to 1. */
+	dispatch = glamor_get_dispatch(glamor_priv);
+	dispatch->glVertexAttribPointer(GLAMOR_VERTEX_POS, 2, GL_FLOAT,
+					GL_FALSE, 2 * sizeof(float),
+					vertices);
+	dispatch->glEnableVertexAttribArray(GLAMOR_VERTEX_POS);
+	dispatch->glVertexAttribPointer(GLAMOR_VERTEX_SOURCE, 2, GL_FLOAT,
+					GL_FALSE, 2 * sizeof(float),
+					ptexcoords);
+	dispatch->glEnableVertexAttribArray(GLAMOR_VERTEX_SOURCE);
+
+	glamor_set_destination_pixmap_priv_nc(pixmap_priv);
+	__glamor_upload_pixmap_to_texture(pixmap, &tex,
+					  format, type,
+					  0, 0, w, h,
+					  bits, pbo);
+	dispatch->glActiveTexture(GL_TEXTURE0);
+	dispatch->glBindTexture(GL_TEXTURE_2D, tex);
+
+	dispatch->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER,
+				  GL_NEAREST);
+	dispatch->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER,
+				  GL_NEAREST);
+#ifndef GLAMOR_GLES2
+	dispatch->glEnable(GL_TEXTURE_2D);
+#endif
+	dispatch->glUseProgram(glamor_priv->finish_access_prog[no_alpha]);
+	dispatch->glUniform1i(glamor_priv->
+			      finish_access_revert[no_alpha],
+			      revert);
+	dispatch->glUniform1i(glamor_priv->finish_access_swap_rb[no_alpha],
+			      swap_rb);
+
+	dispatch->glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
+
+#ifndef GLAMOR_GLES2
+	dispatch->glDisable(GL_TEXTURE_2D);
+#endif
+	dispatch->glUseProgram(0);
+	dispatch->glDisableVertexAttribArray(GLAMOR_VERTEX_POS);
+	dispatch->glDisableVertexAttribArray(GLAMOR_VERTEX_SOURCE);
+	dispatch->glDeleteTextures(1, &tex);
+	dispatch->glBindFramebuffer(GL_FRAMEBUFFER, 0);
+
+	glamor_put_dispatch(glamor_priv);
+
+	if (need_free_bits)
+		free(bits);
+	return TRUE;
+}
+
+/*
+ * Prepare to upload a pixmap to texture memory.
+ * no_alpha equals 1 means the format needs to wire alpha to 1.
+ * Two condtion need to setup a fbo for a pixmap
+ * 1. !yInverted, we need to do flip if we are not yInverted.
+ * 2. no_alpha != 0, we need to wire the alpha.
+ * */
+static int
+glamor_pixmap_upload_prepare(PixmapPtr pixmap, GLenum format, int no_alpha, int revert, int swap_rb)
+{
+	int flag = 0;
+	glamor_pixmap_private *pixmap_priv;
+	glamor_screen_private *glamor_priv;
+	glamor_pixmap_fbo *fbo;
+	GLenum iformat;
+
+	pixmap_priv = glamor_get_pixmap_private(pixmap);
+	glamor_priv = glamor_get_screen_private(pixmap->drawable.pScreen);
+
+	if (pixmap_priv->base.gl_fbo)
+		return 0;
+
+	if (pixmap_priv->base.fbo
+	     && (pixmap_priv->base.fbo->width < pixmap->drawable.width
+           || pixmap_priv->base.fbo->height < pixmap->drawable.height)) {
+		fbo = glamor_pixmap_detach_fbo(pixmap_priv);
+		glamor_destroy_fbo(fbo);
+        }
+
+	if (pixmap_priv->base.fbo && pixmap_priv->base.fbo->fb)
+		return 0;
+
+	if (!(no_alpha
+	      || (revert == REVERT_NORMAL)
+	      || (swap_rb != SWAP_NONE_UPLOADING)
+	      || !glamor_priv->yInverted)) {
+		/* We don't need a fbo, a simple texture uploading should work. */
+
+		flag = GLAMOR_CREATE_FBO_NO_FBO;
+	}
+
+	if ((flag == GLAMOR_CREATE_FBO_NO_FBO
+		&& pixmap_priv->base.fbo && pixmap_priv->base.fbo->tex)
+	    || (flag == 0
+		&& pixmap_priv->base.fbo && pixmap_priv->base.fbo->fb))
+		return 0;
+
+	if (glamor_priv->gl_flavor == GLAMOR_GL_DESKTOP)
+		gl_iformat_for_depth(pixmap->drawable.depth, &iformat);
+	else
+		iformat = format;
+
+	if (!glamor_pixmap_ensure_fbo(pixmap, iformat, flag))
+		return -1;
+
+	return 0;
+}
+
+/*
+ * upload sub region to a large region.
+ * */
+static void
+glamor_put_bits(char *dst_bits, int dst_stride, char *src_bits,
+		int src_stride, int bpp,
+		int x, int y, int w, int h)
+{
+	int j;
+	int byte_per_pixel;
+
+	byte_per_pixel = bpp / 8;
+	src_bits += y * src_stride + (x * byte_per_pixel);
+
+	for(j = y; j < y + h; j++)
+	{
+		memcpy(dst_bits, src_bits, w * byte_per_pixel);
+		src_bits += src_stride;
+		dst_bits += dst_stride;
+	}
+}
+/*
+ * download sub region from a large region.
+ */
+static void
+glamor_get_bits(char *dst_bits, int dst_stride, char *src_bits,
+		int src_stride, int bpp,
+		int x, int y, int w, int h)
+{
+	int j;
+	int byte_per_pixel;
+
+	byte_per_pixel = bpp / 8;
+	dst_bits += y * dst_stride + x * byte_per_pixel;
+
+	for(j = y; j < y + h; j++)
+	{
+		memcpy(dst_bits, src_bits, w * byte_per_pixel);
+		src_bits += src_stride;
+		dst_bits += dst_stride;
+	}
+}
+
+
+Bool
+glamor_upload_sub_pixmap_to_texture(PixmapPtr pixmap, int x, int y, int w, int h,
+				    int stride, void *bits, int pbo)
+{
+	GLenum format, type;
+	int no_alpha, revert, swap_rb;
+	glamor_pixmap_private *pixmap_priv;
+	Bool force_clip;
+
+	if (glamor_get_tex_format_type_from_pixmap(pixmap,
+						   &format,
+						   &type,
+						   &no_alpha,
+						   &revert,
+						   &swap_rb, 1)) {
+		glamor_fallback("Unknown pixmap depth %d.\n",
+				pixmap->drawable.depth);
+		return TRUE;
+	}
+	if (glamor_pixmap_upload_prepare(pixmap, format, no_alpha, revert, swap_rb))
+		return FALSE;
+
+	pixmap_priv = glamor_get_pixmap_private(pixmap);
+	force_clip = pixmap_priv->base.glamor_priv->gl_flavor != GLAMOR_GL_DESKTOP
+			&& !glamor_check_fbo_size(pixmap_priv->base.glamor_priv, w, h);
+
+	if (pixmap_priv->type == GLAMOR_TEXTURE_LARGE || force_clip) {
+		RegionRec region;
+		BoxRec box;
+		int n_region;
+		glamor_pixmap_clipped_regions *clipped_regions;
+		void *sub_bits;
+		int i,j;
+
+		sub_bits = malloc(h * stride);
+		if (sub_bits == NULL)
+			return FALSE;
+		box.x1 = x;
+		box.y1 = y;
+		box.x2 = x + w;
+		box.y2 = y + h;
+		RegionInitBoxes(&region, &box, 1);
+		if (!force_clip)
+			clipped_regions = glamor_compute_clipped_regions(pixmap_priv, &region, &n_region, 0, 0, 0);
+		else
+			clipped_regions = glamor_compute_clipped_regions_ext(pixmap_priv, &region, &n_region,
+							pixmap_priv->base.glamor_priv->max_fbo_size,
+							pixmap_priv->base.glamor_priv->max_fbo_size, 0, 0);
+		DEBUGF("prepare upload %dx%d to a large pixmap %p\n", w, h, pixmap);
+		for(i = 0; i < n_region; i++)
+		{
+			BoxPtr boxes;
+			int nbox;
+			int temp_stride;
+			void *temp_bits;
+
+			assert(pbo == 0);
+
+			SET_PIXMAP_FBO_CURRENT(pixmap_priv, clipped_regions[i].block_idx);
+
+			boxes = RegionRects(clipped_regions[i].region);
+			nbox = RegionNumRects(clipped_regions[i].region);
+			DEBUGF("split to %d boxes\n", nbox);
+			for(j = 0; j < nbox; j++)
+			{
+				temp_stride = PixmapBytePad(boxes[j].x2 - boxes[j].x1,
+							    pixmap->drawable.depth);
+
+				if (boxes[j].x1 == x && temp_stride == stride) {
+					temp_bits = (char*)bits + (boxes[j].y1 - y) * stride;
+				} else {
+					temp_bits = sub_bits;
+					glamor_put_bits(temp_bits, temp_stride, bits, stride,
+							pixmap->drawable.bitsPerPixel,
+							boxes[j].x1 - x, boxes[j].y1 - y,
+							boxes[j].x2 - boxes[j].x1,
+							boxes[j].y2 - boxes[j].y1);
+				}
+				DEBUGF("upload x %d y %d w %d h %d temp stride %d \n",
+					boxes[j].x1 - x, boxes[j].y1 - y,
+					boxes[j].x2 - boxes[j].x1,
+					boxes[j].y2 - boxes[j].y1, temp_stride);
+				if (_glamor_upload_bits_to_pixmap_texture(pixmap, format, type, no_alpha,
+									  revert, swap_rb, boxes[j].x1, boxes[j].y1,
+									  boxes[j].x2 - boxes[j].x1,
+									  boxes[j].y2 - boxes[j].y1,
+									  temp_stride, temp_bits, pbo) == FALSE) {
+					RegionUninit(&region);
+					free(sub_bits);
+					assert(0);
+					return FALSE;
+				}
+			}
+			RegionDestroy(clipped_regions[i].region);
+		}
+		free(sub_bits);
+		free(clipped_regions);
+		RegionUninit(&region);
+		return TRUE;
+	} else
+		return _glamor_upload_bits_to_pixmap_texture(pixmap, format, type, no_alpha, revert, swap_rb,
+						     x, y, w, h, stride, bits, pbo);
+}
+
+enum glamor_pixmap_status
+glamor_upload_pixmap_to_texture(PixmapPtr pixmap)
+{
+	glamor_pixmap_private *pixmap_priv;
+	void *data;
+	int pbo;
+	int ret;
+
+	pixmap_priv = glamor_get_pixmap_private(pixmap);
+
+	if ((pixmap_priv->base.fbo)
+	    && (pixmap_priv->base.fbo->pbo_valid)) {
+		data = NULL;
+		pbo = pixmap_priv->base.fbo->pbo;
+	} else {
+		data = pixmap->devPrivate.ptr;
+		pbo = 0;
+	}
+
+	if (glamor_upload_sub_pixmap_to_texture(pixmap, 0, 0,
+						pixmap->drawable.width,
+						pixmap->drawable.height,
+						pixmap->devKind,
+						data, pbo))
+		ret = GLAMOR_UPLOAD_DONE;
+	else
+		ret = GLAMOR_UPLOAD_FAILED;
+
+	return ret;
+}
+
+void
+glamor_restore_pixmap_to_texture(PixmapPtr pixmap)
+{
+	if (glamor_upload_pixmap_to_texture(pixmap) != GLAMOR_UPLOAD_DONE)
+		LogMessage(X_WARNING, "Failed to restore pixmap to texture.\n");
+}
+
+/*
+ * as gles2 only support a very small set of color format and
+ * type when do glReadPixel,
+ * Before we use glReadPixels to get back a textured pixmap,
+ * Use shader to convert it to a supported format and thus
+ * get a new temporary pixmap returned.
+ * */
+
+glamor_pixmap_fbo *
+glamor_es2_pixmap_read_prepare(PixmapPtr source, int x, int y, int w, int h, GLenum format,
+			       GLenum type, int no_alpha, int revert, int swap_rb)
+
+{
+	glamor_pixmap_private *source_priv;
+	glamor_screen_private *glamor_priv;
+	ScreenPtr screen;
+	glamor_pixmap_fbo *temp_fbo;
+	glamor_gl_dispatch *dispatch;
+	float temp_xscale, temp_yscale, source_xscale, source_yscale;
+	static float vertices[8];
+	static float texcoords[8];
+
+	screen = source->drawable.pScreen;
+
+	glamor_priv = glamor_get_screen_private(screen);
+	source_priv = glamor_get_pixmap_private(source);
+	temp_fbo = glamor_create_fbo(glamor_priv,
+				     w, h,
+				     format,
+				     0);
+	if (temp_fbo == NULL)
+		return NULL;
+
+	dispatch = glamor_get_dispatch(glamor_priv);
+	temp_xscale = 1.0 / w;
+	temp_yscale = 1.0 / h;
+
+	glamor_set_normalize_vcoords((struct glamor_pixmap_private*)NULL,temp_xscale,
+				     temp_yscale,
+				     0, 0,
+				     w, h,
+				     glamor_priv->yInverted,
+				     vertices);
+
+	dispatch->glVertexAttribPointer(GLAMOR_VERTEX_POS, 2, GL_FLOAT,
+					GL_FALSE, 2 * sizeof(float),
+					vertices);
+	dispatch->glEnableVertexAttribArray(GLAMOR_VERTEX_POS);
+
+	pixmap_priv_get_scale(source_priv, &source_xscale, &source_yscale);
+	glamor_set_normalize_tcoords(source_priv, source_xscale,
+				     source_yscale,
+				     x, y,
+				     x + w, y + h,
+				     glamor_priv->yInverted,
+				     texcoords);
+
+	dispatch->glVertexAttribPointer(GLAMOR_VERTEX_SOURCE, 2, GL_FLOAT,
+					GL_FALSE, 2 * sizeof(float),
+					texcoords);
+	dispatch->glEnableVertexAttribArray(GLAMOR_VERTEX_SOURCE);
+
+	dispatch->glActiveTexture(GL_TEXTURE0);
+	dispatch->glBindTexture(GL_TEXTURE_2D, source_priv->base.fbo->tex);
+	dispatch->glTexParameteri(GL_TEXTURE_2D,
+				  GL_TEXTURE_MIN_FILTER,
+				  GL_NEAREST);
+	dispatch->glTexParameteri(GL_TEXTURE_2D,
+				  GL_TEXTURE_MAG_FILTER,
+				  GL_NEAREST);
+
+	glamor_set_destination_pixmap_fbo(temp_fbo, 0, 0, w, h);
+	dispatch->glUseProgram(glamor_priv->finish_access_prog[no_alpha]);
+	dispatch->glUniform1i(glamor_priv->
+			      finish_access_revert[no_alpha],
+			      revert);
+	dispatch->glUniform1i(glamor_priv->finish_access_swap_rb[no_alpha],
+			      swap_rb);
+
+	dispatch->glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
+
+	dispatch->glDisableVertexAttribArray(GLAMOR_VERTEX_POS);
+	dispatch->glDisableVertexAttribArray(GLAMOR_VERTEX_SOURCE);
+	dispatch->glUseProgram(0);
+	glamor_put_dispatch(glamor_priv);
+	return temp_fbo;
+}
+
+/*
+ * Download a sub region of pixmap to a specified memory region.
+ * The pixmap must have a valid FBO, otherwise return a NULL.
+ * */
+
+static void *
+_glamor_download_sub_pixmap_to_cpu(PixmapPtr pixmap, GLenum format,
+				   GLenum type, int no_alpha,
+				   int revert, int swap_rb,
+				   int x, int y, int w, int h,
+				   int stride, void *bits, int pbo, glamor_access_t access)
+{
+	glamor_pixmap_private *pixmap_priv;
+	GLenum gl_access = 0, gl_usage = 0;
+	void *data, *read;
+	glamor_screen_private *glamor_priv =
+	    glamor_get_screen_private(pixmap->drawable.pScreen);
+	glamor_gl_dispatch *dispatch;
+	glamor_pixmap_fbo *temp_fbo = NULL;
+	int need_post_conversion = 0;
+	int need_free_data = 0;
+	int fbo_x_off, fbo_y_off;
+
+	data = bits;
+	pixmap_priv = glamor_get_pixmap_private(pixmap);
+	if (!GLAMOR_PIXMAP_PRIV_HAS_FBO(pixmap_priv))
+		return NULL;
+
+	switch (access) {
+	case GLAMOR_ACCESS_RO:
+		gl_access = GL_READ_ONLY;
+		gl_usage = GL_STREAM_READ;
+		break;
+	case GLAMOR_ACCESS_WO:
+		return bits;
+	case GLAMOR_ACCESS_RW:
+		gl_access = GL_READ_WRITE;
+		gl_usage = GL_DYNAMIC_DRAW;
+		break;
+	default:
+		ErrorF("Glamor: Invalid access code. %d\n", access);
+		assert(0);
+	}
+
+	glamor_set_destination_pixmap_priv_nc(pixmap_priv);
+
+	need_post_conversion = (revert > REVERT_NORMAL);
+	if (need_post_conversion) {
+		if (pixmap->drawable.depth == 1) {
+			int temp_stride;
+			temp_stride = (((w * 8 + 7) / 8) + 3) & ~3;
+			data = malloc(temp_stride * h);
+			if (data == NULL)
+				return NULL;
+			need_free_data = 1;
+		}
+	}
+
+	pixmap_priv_get_fbo_off(pixmap_priv, &fbo_x_off, &fbo_y_off);
+
+	if (glamor_priv->gl_flavor == GLAMOR_GL_ES2
+	    && !need_post_conversion
+	    && (swap_rb != SWAP_NONE_DOWNLOADING || revert != REVERT_NONE)) {
+		 if (!(temp_fbo = glamor_es2_pixmap_read_prepare(pixmap, x, y, w, h,
+								 format, type, no_alpha,
+								 revert, swap_rb))) {
+			free(data);
+			return NULL;
+		}
+		x = 0;
+		y = 0;
+		fbo_x_off = 0;
+		fbo_y_off = 0;
+	}
+
+	dispatch = glamor_get_dispatch(glamor_priv);
+	dispatch->glPixelStorei(GL_PACK_ALIGNMENT, 4);
+
+	if (glamor_priv->has_pack_invert || glamor_priv->yInverted) {
+
+		if (!glamor_priv->yInverted) {
+			assert(glamor_priv->gl_flavor ==
+			       GLAMOR_GL_DESKTOP);
+			dispatch->glPixelStorei(GL_PACK_INVERT_MESA, 1);
+		}
+
+		if (glamor_priv->gl_flavor == GLAMOR_GL_DESKTOP && data == NULL) {
+			assert(pbo > 0);
+			dispatch->glBindBuffer(GL_PIXEL_PACK_BUFFER, pbo);
+			dispatch->glBufferData(GL_PIXEL_PACK_BUFFER,
+					       stride *
+					       h,
+					       NULL, gl_usage);
+		}
+
+		dispatch->glReadPixels(x + fbo_x_off, y + fbo_y_off, w, h, format, type, data);
+
+		if (!glamor_priv->yInverted) {
+			assert(glamor_priv->gl_flavor == GLAMOR_GL_DESKTOP);
+			dispatch->glPixelStorei(GL_PACK_INVERT_MESA, 0);
+		}
+		if (glamor_priv->gl_flavor == GLAMOR_GL_DESKTOP && bits == NULL) {
+			bits = dispatch->glMapBuffer(GL_PIXEL_PACK_BUFFER,
+						     gl_access);
+			dispatch->glBindBuffer(GL_PIXEL_PACK_BUFFER, 0);
+		}
+	} else {
+		unsigned int temp_pbo;
+		int yy;
+
+		dispatch = glamor_get_dispatch(glamor_priv);
+		dispatch->glGenBuffers(1, &temp_pbo);
+		dispatch->glBindBuffer(GL_PIXEL_PACK_BUFFER,
+				       temp_pbo);
+		dispatch->glBufferData(GL_PIXEL_PACK_BUFFER,
+				       stride *
+				       h,
+				       NULL, GL_STREAM_READ);
+		dispatch->glReadPixels(x + fbo_x_off, y + fbo_y_off, w, h,
+				       format, type, 0);
+		read = dispatch->glMapBuffer(GL_PIXEL_PACK_BUFFER,
+					     GL_READ_ONLY);
+		for (yy = 0; yy < pixmap->drawable.height; yy++)
+			memcpy((char*)data + yy * stride,
+			       (char*)read + (h - yy - 1) * stride, stride);
+		dispatch->glUnmapBuffer(GL_PIXEL_PACK_BUFFER);
+		dispatch->glBindBuffer(GL_PIXEL_PACK_BUFFER, 0);
+		dispatch->glDeleteBuffers(1, &temp_pbo);
+	}
+
+	dispatch->glBindFramebuffer(GL_FRAMEBUFFER, 0);
+	glamor_put_dispatch(glamor_priv);
+
+	if (need_post_conversion) {
+		/* As OpenGL desktop version never enters here.
+		 * Don't need to consider if the pbo is valid.*/
+		bits = glamor_color_convert_to_bits(data, bits,
+						    w, h,
+						    stride,
+						    no_alpha,
+						    revert, swap_rb);
+	}
+
+	if (temp_fbo != NULL)
+		glamor_destroy_fbo(temp_fbo);
+	if (need_free_data)
+		free(data);
+
+	return bits;
+}
+
+void *
+glamor_download_sub_pixmap_to_cpu(PixmapPtr pixmap, int x, int y, int w, int h,
+				  int stride, void *bits, int pbo, glamor_access_t access)
+{
+	GLenum format, type;
+	int no_alpha, revert, swap_rb;
+	glamor_pixmap_private *pixmap_priv;
+	Bool force_clip;
+
+	if (glamor_get_tex_format_type_from_pixmap(pixmap,
+						   &format,
+						   &type,
+						   &no_alpha,
+						   &revert,
+						   &swap_rb, 0)) {
+		glamor_fallback("Unknown pixmap depth %d.\n",
+				pixmap->drawable.depth);
+		return NULL;
+	}
+
+	pixmap_priv = glamor_get_pixmap_private(pixmap);
+	if (!GLAMOR_PIXMAP_PRIV_HAS_FBO(pixmap_priv))
+		return NULL;
+
+	force_clip = pixmap_priv->base.glamor_priv->gl_flavor != GLAMOR_GL_DESKTOP
+			&& !glamor_check_fbo_size(pixmap_priv->base.glamor_priv, w, h);
+
+	if (pixmap_priv->type == GLAMOR_TEXTURE_LARGE || force_clip) {
+
+		RegionRec region;
+		BoxRec box;
+		int n_region;
+		glamor_pixmap_clipped_regions *clipped_regions;
+		void *sub_bits;
+		int i,j;
+
+		sub_bits = malloc(h * stride);
+		if (sub_bits == NULL)
+			return FALSE;
+		box.x1 = x;
+		box.y1 = y;
+		box.x2 = x + w;
+		box.y2 = y + h;
+		RegionInitBoxes(&region, &box, 1);
+
+		if (!force_clip)
+			clipped_regions = glamor_compute_clipped_regions(pixmap_priv, &region, &n_region, 0, 0, 0);
+		else
+			clipped_regions = glamor_compute_clipped_regions_ext(pixmap_priv, &region, &n_region,
+							pixmap_priv->base.glamor_priv->max_fbo_size,
+							pixmap_priv->base.glamor_priv->max_fbo_size, 0, 0);
+
+		DEBUGF("start download large pixmap %p %dx%d \n", pixmap, w, h);
+		for(i = 0; i < n_region; i++)
+		{
+			BoxPtr boxes;
+			int nbox;
+			int temp_stride;
+			void *temp_bits;
+
+			assert(pbo == 0);
+			SET_PIXMAP_FBO_CURRENT(pixmap_priv, clipped_regions[i].block_idx);
+
+			boxes = RegionRects(clipped_regions[i].region);
+			nbox = RegionNumRects(clipped_regions[i].region);
+			for(j = 0; j < nbox; j++)
+			{
+				temp_stride = PixmapBytePad(boxes[j].x2 - boxes[j].x1,
+							    pixmap->drawable.depth);
+
+				if (boxes[j].x1 == x && temp_stride == stride) {
+					temp_bits = (char*)bits + (boxes[j].y1 - y) * stride;
+				} else {
+					temp_bits = sub_bits;
+				}
+				DEBUGF("download x %d y %d w %d h %d temp stride %d \n",
+					boxes[j].x1, boxes[j].y1,
+					boxes[j].x2 - boxes[j].x1,
+					boxes[j].y2 - boxes[j].y1, temp_stride);
+
+				/* For large pixmap, we don't support pbo currently.*/
+				assert(pbo == 0);
+				if (_glamor_download_sub_pixmap_to_cpu(pixmap, format, type, no_alpha,
+								       revert, swap_rb, boxes[j].x1, boxes[j].y1,
+								       boxes[j].x2 - boxes[j].x1,
+								       boxes[j].y2 - boxes[j].y1,
+								       temp_stride, temp_bits, pbo, access) == FALSE) {
+					RegionUninit(&region);
+					free(sub_bits);
+					assert(0);
+					return NULL;
+				}
+				if (boxes[j].x1 != x || temp_stride != stride)
+					glamor_get_bits(bits, stride, temp_bits, temp_stride,
+							pixmap->drawable.bitsPerPixel,
+							boxes[j].x1 - x , boxes[j].y1 - y,
+							boxes[j].x2 - boxes[j].x1,
+							boxes[j].y2 - boxes[j].y1);
+			}
+
+			RegionDestroy(clipped_regions[i].region);
+		}
+		free(sub_bits);
+		free(clipped_regions);
+		RegionUninit(&region);
+		return bits;
+	} else
+	return _glamor_download_sub_pixmap_to_cpu(pixmap, format, type, no_alpha, revert, swap_rb,
+						  x, y, w, h, stride,
+						  bits, pbo, access);
+}
+
+
+/**
+ * Move a pixmap to CPU memory.
+ * The input data is the pixmap's fbo.
+ * The output data is at pixmap->devPrivate.ptr. We always use pbo
+ * to read the fbo and then map it to va. If possible, we will use
+ * it directly as devPrivate.ptr.
+ * If successfully download a fbo to cpu then return TRUE.
+ * Otherwise return FALSE.
+ **/
+Bool
+glamor_download_pixmap_to_cpu(PixmapPtr pixmap, glamor_access_t access)
+{
+	glamor_pixmap_private *pixmap_priv =
+	    glamor_get_pixmap_private(pixmap);
+	unsigned int stride;
+	void *data = NULL, *dst;
+	glamor_screen_private *glamor_priv =
+	    glamor_get_screen_private(pixmap->drawable.pScreen);
+	glamor_gl_dispatch *dispatch;
+	int pbo = 0;
+
+	if (!GLAMOR_PIXMAP_PRIV_HAS_FBO(pixmap_priv))
+		return TRUE;
+
+	glamor_debug_output(GLAMOR_DEBUG_TEXTURE_DOWNLOAD,
+			    "Downloading pixmap %p  %dx%d depth%d\n",
+			    pixmap,
+			    pixmap->drawable.width,
+			    pixmap->drawable.height,
+			    pixmap->drawable.depth);
+
+	stride = pixmap->devKind;
+
+	if (access == GLAMOR_ACCESS_WO
+	    || glamor_priv->gl_flavor == GLAMOR_GL_ES2
+	    || (!glamor_priv->has_pack_invert && !glamor_priv->yInverted)
+	    || pixmap_priv->type == GLAMOR_TEXTURE_LARGE) {
+		data = malloc(stride * pixmap->drawable.height);
+	} else {
+		dispatch = glamor_get_dispatch(glamor_priv);
+		if (pixmap_priv->base.fbo->pbo == 0)
+			dispatch->glGenBuffers(1,
+					       &pixmap_priv->base.fbo->pbo);
+		glamor_put_dispatch(glamor_priv);
+		pbo = pixmap_priv->base.fbo->pbo;
+	}
+
+	if (pixmap_priv->type == GLAMOR_TEXTURE_DRM) {
+		stride = PixmapBytePad(pixmap->drawable.width, pixmap->drawable.depth);
+		pixmap_priv->base.drm_stride = pixmap->devKind;
+		pixmap->devKind = stride;
+	}
+
+	dst = glamor_download_sub_pixmap_to_cpu(pixmap, 0, 0,
+						pixmap->drawable.width,
+						pixmap->drawable.height,
+						pixmap->devKind,
+						data, pbo, access);
+
+	if (!dst) {
+		if (data)
+			free(data);
+		return FALSE;
+	}
+
+	if (pbo != 0)
+		pixmap_priv->base.fbo->pbo_valid = 1;
+
+	pixmap_priv->base.gl_fbo = GLAMOR_FBO_DOWNLOADED;
+
+	pixmap->devPrivate.ptr = dst;
+
+	return TRUE;
+}
+
+/* fixup a fbo to the exact size as the pixmap. */
+/* XXX LARGE pixmap? */
+Bool
+glamor_fixup_pixmap_priv(ScreenPtr screen, glamor_pixmap_private *pixmap_priv)
+{
+	glamor_pixmap_fbo *old_fbo;
+	glamor_pixmap_fbo *new_fbo = NULL;
+	PixmapPtr scratch = NULL;
+	glamor_pixmap_private *scratch_priv;
+	DrawablePtr drawable;
+	GCPtr gc = NULL;
+	int ret = FALSE;
+
+	drawable = &pixmap_priv->base.pixmap->drawable;
+
+	if (!GLAMOR_PIXMAP_FBO_NOT_EAXCT_SIZE(pixmap_priv))
+		return	TRUE;
+
+	old_fbo = pixmap_priv->base.fbo;
+
+	if (!old_fbo)
+		return FALSE;
+
+	gc = GetScratchGC(drawable->depth, screen);
+	if (!gc)
+		goto fail;
+
+	scratch = glamor_create_pixmap(screen, drawable->width, drawable->height,
+				       drawable->depth,
+				       GLAMOR_CREATE_PIXMAP_FIXUP);
+
+	scratch_priv = glamor_get_pixmap_private(scratch);
+
+	if (!scratch_priv->base.fbo)
+		goto fail;
+
+	ValidateGC(&scratch->drawable, gc);
+	glamor_copy_area(drawable,
+			 &scratch->drawable,
+			 gc, 0, 0,
+			 drawable->width, drawable->height,
+			 0, 0);
+	old_fbo = glamor_pixmap_detach_fbo(pixmap_priv);
+	new_fbo = glamor_pixmap_detach_fbo(scratch_priv);
+	glamor_pixmap_attach_fbo(pixmap_priv->base.pixmap, new_fbo);
+	glamor_pixmap_attach_fbo(scratch, old_fbo);
+
+	DEBUGF("old %dx%d type %d\n",
+		drawable->width, drawable->height, pixmap_priv->type);
+	DEBUGF("copy tex %d  %dx%d to tex %d %dx%d \n",
+		old_fbo->tex, old_fbo->width, old_fbo->height, new_fbo->tex, new_fbo->width, new_fbo->height);
+	ret = TRUE;
+fail:
+	if (gc)
+		FreeScratchGC(gc);
+	if (scratch)
+		glamor_destroy_pixmap(scratch);
+
+	return ret;
+}
+
+/*
+ * We may use this function to reduce a large pixmap to a small sub
+ * pixmap. Two scenarios currently:
+ * 1. When fallback a large textured pixmap to CPU but we do need to
+ * do rendering within a small sub region, then we can just get a
+ * sub region.
+ *
+ * 2. When uploading a large pixmap to texture but we only need to
+ * use part of the source/mask picture. As glTexImage2D will be more
+ * efficient to upload a contingent region rather than a sub block
+ * in a large buffer. We use this function to gather the sub region
+ * to a contingent sub pixmap.
+ *
+ * The sub-pixmap must have the same format as the source pixmap.
+ *
+ * */
+PixmapPtr
+glamor_get_sub_pixmap(PixmapPtr pixmap, int x, int y, int w, int h, glamor_access_t access)
+{
+	glamor_screen_private *glamor_priv;
+	PixmapPtr sub_pixmap;
+	glamor_pixmap_private *sub_pixmap_priv, *pixmap_priv;
+	void *data;
+	int pbo;
+	int flag;
+	if (x < 0 || y < 0)
+		return NULL;
+	w = (x + w) > pixmap->drawable.width ? (pixmap->drawable.width - x) : w;
+	h = (y + h) > pixmap->drawable.height ? (pixmap->drawable.height - y) : h;
+	if (access == GLAMOR_ACCESS_WO) {
+		sub_pixmap = glamor_create_pixmap(pixmap->drawable.pScreen, w, h,
+						  pixmap->drawable.depth, GLAMOR_CREATE_PIXMAP_CPU);
+		return sub_pixmap;
+	}
+
+	glamor_priv = glamor_get_screen_private(pixmap->drawable.pScreen);
+	pixmap_priv = glamor_get_pixmap_private(pixmap);
+
+	if (!GLAMOR_PIXMAP_PRIV_HAS_FBO(pixmap_priv))
+		return NULL;
+	if (glamor_priv->gl_flavor == GLAMOR_GL_ES2 || pixmap_priv->type == GLAMOR_TEXTURE_LARGE)
+		flag = GLAMOR_CREATE_PIXMAP_CPU;
+	else
+		flag = GLAMOR_CREATE_PIXMAP_MAP;
+
+	sub_pixmap = glamor_create_pixmap(pixmap->drawable.pScreen, w, h,
+					  pixmap->drawable.depth, flag);
+
+	if (sub_pixmap == NULL)
+		return NULL;
+
+	sub_pixmap_priv = glamor_get_pixmap_private(sub_pixmap);
+	pbo = sub_pixmap_priv ? (sub_pixmap_priv->base.fbo ? sub_pixmap_priv->base.fbo->pbo : 0): 0;
+
+	if (pixmap_priv->base.is_picture) {
+		sub_pixmap_priv->base.picture = pixmap_priv->base.picture;
+		sub_pixmap_priv->base.is_picture = pixmap_priv->base.is_picture;
+	}
+
+	if (pbo)
+		data = NULL;
+	else
+		data = sub_pixmap->devPrivate.ptr;
+
+	data = glamor_download_sub_pixmap_to_cpu(pixmap, x, y, w, h, sub_pixmap->devKind,
+						 data, pbo, access);
+	if(data == NULL) {
+		fbDestroyPixmap(sub_pixmap);
+		return NULL;
+	}
+	if (pbo) {
+		assert(sub_pixmap->devPrivate.ptr == NULL);
+		sub_pixmap->devPrivate.ptr = data;
+		sub_pixmap_priv->base.fbo->pbo_valid = 1;
+	}
+#if 0
+	struct pixman_box16 box;
+	PixmapPtr new_sub_pixmap;
+	int dx, dy;
+	box.x1 = 0;
+	box.y1 = 0;
+	box.x2 = w;
+	box.y2 = h;
+
+	dx = x;
+	dy = y;
+
+	new_sub_pixmap = glamor_create_pixmap(pixmap->drawable.pScreen, w, h,
+					      pixmap->drawable.depth, GLAMOR_CREATE_PIXMAP_CPU);
+	glamor_copy_n_to_n(&pixmap->drawable, &new_sub_pixmap->drawable, NULL, &box, 1, dx, dy, 0, 0, 0, NULL);
+	glamor_compare_pixmaps(new_sub_pixmap, sub_pixmap, 0, 0, w, h, 1, 1);
+#endif
+
+	return sub_pixmap;
+}
+
+void
+glamor_put_sub_pixmap(PixmapPtr sub_pixmap, PixmapPtr pixmap, int x, int y, int w, int h, glamor_access_t access)
+{
+	void *bits;
+	int pbo;
+	glamor_pixmap_private *sub_pixmap_priv;
+	if (access != GLAMOR_ACCESS_RO) {
+		sub_pixmap_priv = glamor_get_pixmap_private(sub_pixmap);
+		if (sub_pixmap_priv->base.fbo
+		    && sub_pixmap_priv->base.fbo->pbo_valid) {
+			bits = NULL;
+			pbo = sub_pixmap_priv->base.fbo->pbo;
+		} else {
+			bits = sub_pixmap->devPrivate.ptr;
+			pbo = 0;
+		}
+
+		assert(x >= 0 && y >= 0);
+		w = (w > sub_pixmap->drawable.width) ? sub_pixmap->drawable.width : w;
+		h = (h > sub_pixmap->drawable.height) ? sub_pixmap->drawable.height : h;
+		glamor_upload_sub_pixmap_to_texture(pixmap, x, y, w, h, sub_pixmap->devKind, bits, pbo);
+	}
+	glamor_destroy_pixmap(sub_pixmap);
+}
diff --git a/glamor/glamor_polyfillrect.c b/glamor/glamor_polyfillrect.c
new file mode 100644
index 000000000..4e1f7b3a9
--- /dev/null
+++ b/glamor/glamor_polyfillrect.c
@@ -0,0 +1,127 @@
+/*
+ * Copyright © 2009 Intel Corporation
+ * Copyright © 1998 Keith Packard
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ *
+ * Authors:
+ *    Eric Anholt <eric@anholt.net>
+ *
+ */
+
+#include "glamor_priv.h"
+
+/** @file glamor_fillspans.c
+ *
+ * GC PolyFillRect implementation, taken straight from fb_fill.c
+ */
+
+static Bool
+_glamor_poly_fill_rect(DrawablePtr drawable,
+		      GCPtr gc, int nrect, xRectangle * prect, Bool fallback)
+{
+	int fullX1, fullX2, fullY1, fullY2;
+	int xorg, yorg;
+	int n;
+	register BoxPtr pbox;
+	RegionPtr pClip = fbGetCompositeClip(gc);
+	Bool ret = FALSE;
+
+	xorg = drawable->x;
+	yorg = drawable->y;
+
+	while (nrect--) {
+		fullX1 = prect->x + xorg;
+		fullY1 = prect->y + yorg;
+		fullX2 = fullX1 + (int) prect->width;
+		fullY2 = fullY1 + (int) prect->height;
+
+		n = REGION_NUM_RECTS(pClip);
+		pbox = REGION_RECTS(pClip);
+		/*
+		 * clip the rectangle to each box in the clip region
+		 * this is logically equivalent to calling Intersect(),
+		 * but rectangles may overlap each other here.
+		 */
+		while (n--) {
+			int x1 = fullX1;
+			int x2 = fullX2;
+			int y1 = fullY1;
+			int y2 = fullY2;
+
+			if (pbox->x1 > x1)
+				x1 = pbox->x1;
+			if (pbox->x2 < x2)
+				x2 = pbox->x2;
+			if (pbox->y1 > y1)
+				y1 = pbox->y1;
+			if (pbox->y2 < y2)
+				y2 = pbox->y2;
+
+			pbox++;
+			if (x1 >= x2 || y1 >= y2)
+				continue;
+			if (!glamor_fill(drawable, gc, x1, y1, x2 - x1,
+					 y2 - y1, fallback)) {
+				nrect++;
+				goto fail;
+			}
+		}
+		prect++;
+	}
+	ret = TRUE;
+	goto done;
+
+fail:
+
+	if (!fallback
+	    && glamor_ddx_fallback_check_pixmap(drawable)
+	    && glamor_ddx_fallback_check_gc(gc))
+		goto done;
+
+	glamor_fallback(" to %p (%c)\n",
+			drawable, glamor_get_drawable_location(drawable));
+	if (glamor_prepare_access(drawable, GLAMOR_ACCESS_RW)) {
+		if (glamor_prepare_access_gc(gc)) {
+			fbPolyFillRect(drawable, gc, nrect, prect);
+			glamor_finish_access_gc(gc);
+		}
+		glamor_finish_access(drawable, GLAMOR_ACCESS_RW);
+	}
+	ret = TRUE;
+
+done:
+	return ret;
+}
+
+
+void
+glamor_poly_fill_rect(DrawablePtr drawable,
+		      GCPtr gc, int nrect, xRectangle * prect)
+{
+	_glamor_poly_fill_rect(drawable, gc, nrect, prect, TRUE);
+}
+
+Bool
+glamor_poly_fill_rect_nf(DrawablePtr drawable,
+		         GCPtr gc, int nrect, xRectangle * prect)
+{
+	return _glamor_poly_fill_rect(drawable, gc, nrect, prect, FALSE);
+}
diff --git a/glamor/glamor_polylines.c b/glamor/glamor_polylines.c
new file mode 100644
index 000000000..e723e9500
--- /dev/null
+++ b/glamor/glamor_polylines.c
@@ -0,0 +1,135 @@
+/*
+ * Copyright © 2009 Intel Corporation
+ * Copyright © 1998 Keith Packard
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ *
+ * Authors:
+ *    Eric Anholt <eric@anholt.net>
+ *
+ */
+
+#include "glamor_priv.h"
+
+/** @file glamor_polylines.c
+ *
+ * GC PolyFillRect implementation, taken straight from fb_fill.c
+ */
+
+/**
+ * glamor_poly_lines() checks if it can accelerate the lines as a group of
+ * horizontal or vertical lines (rectangles), and uses existing rectangle fill
+ * acceleration if so.
+ */
+static Bool
+_glamor_poly_lines(DrawablePtr drawable, GCPtr gc, int mode, int n,
+		   DDXPointPtr points, Bool fallback)
+{
+	xRectangle *rects;
+	int x1, x2, y1, y2;
+	int i;
+
+	/* Don't try to do wide lines or non-solid fill style. */
+	if (gc->lineWidth != 0) {
+		/* This ends up in miSetSpans, which is accelerated as well as we
+		 * can hope X wide lines will be.
+		 */
+		goto wide_line;
+	}
+	if (gc->lineStyle != LineSolid) {
+		glamor_fallback
+		    ("non-solid fill line style %d\n",
+		     gc->lineStyle);
+		goto fail;
+	}
+	rects = malloc(sizeof(xRectangle) * (n - 1));
+	x1 = points[0].x;
+	y1 = points[0].y;
+	/* If we have any non-horizontal/vertical, fall back. */
+	for (i = 0; i < n - 1; i++) {
+		if (mode == CoordModePrevious) {
+			x2 = x1 + points[i + 1].x;
+			y2 = y1 + points[i + 1].y;
+		} else {
+			x2 = points[i + 1].x;
+			y2 = points[i + 1].y;
+		}
+		if (x1 != x2 && y1 != y2) {
+			free(rects);
+			glamor_fallback("stub diagonal poly_line\n");
+			goto fail;
+		}
+		if (x1 < x2) {
+			rects[i].x = x1;
+			rects[i].width = x2 - x1 + 1;
+		} else {
+			rects[i].x = x2;
+			rects[i].width = x1 - x2 + 1;
+		}
+		if (y1 < y2) {
+			rects[i].y = y1;
+			rects[i].height = y2 - y1 + 1;
+		} else {
+			rects[i].y = y2;
+			rects[i].height = y1 - y2 + 1;
+		}
+
+		x1 = x2;
+		y1 = y2;
+	}
+	gc->ops->PolyFillRect(drawable, gc, n - 1, rects);
+	free(rects);
+	return TRUE;
+
+      fail:
+	if (!fallback
+	    && glamor_ddx_fallback_check_pixmap(drawable)
+	    && glamor_ddx_fallback_check_gc(gc))
+		return FALSE;
+
+	if (gc->lineWidth == 0) {
+		if (glamor_prepare_access(drawable, GLAMOR_ACCESS_RW)) {
+			if (glamor_prepare_access_gc(gc)) {
+				fbPolyLine(drawable, gc, mode, n, points);
+				glamor_finish_access_gc(gc);
+			}
+			glamor_finish_access(drawable, GLAMOR_ACCESS_RW);
+		}
+	} else {
+wide_line:
+		/* fb calls mi functions in the lineWidth != 0 case. */
+		fbPolyLine(drawable, gc, mode, n, points);
+	}
+	return TRUE;
+}
+
+void
+glamor_poly_lines(DrawablePtr drawable, GCPtr gc, int mode, int n,
+		  DDXPointPtr points)
+{
+	_glamor_poly_lines(drawable, gc, mode, n, points, TRUE);
+}
+
+Bool
+glamor_poly_lines_nf(DrawablePtr drawable, GCPtr gc, int mode, int n,
+		     DDXPointPtr points)
+{
+	return _glamor_poly_lines(drawable, gc, mode, n, points, FALSE);
+}
diff --git a/glamor/glamor_polyops.c b/glamor/glamor_polyops.c
new file mode 100644
index 000000000..59301784d
--- /dev/null
+++ b/glamor/glamor_polyops.c
@@ -0,0 +1,85 @@
+/*
+ * Copyright © 2009 Intel Corporation
+ * Copyright © 1998 Keith Packard
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ *
+ * Authors:
+ *    Zhigang Gong <zhigang.gong@linux.intel.com>
+ *
+ */
+
+#include "glamor_priv.h"
+
+static Bool
+_glamor_poly_point(DrawablePtr pDrawable, GCPtr pGC, int mode, int npt,
+		   DDXPointPtr ppt, Bool fallback)
+{
+	if (!fallback 
+	    && glamor_ddx_fallback_check_gc(pGC)
+	    && glamor_ddx_fallback_check_pixmap(pDrawable))
+		return FALSE;
+
+	miPolyPoint(pDrawable, pGC, mode, npt, ppt);
+
+	return TRUE;
+}
+
+void
+glamor_poly_point(DrawablePtr pDrawable, GCPtr pGC, int mode, int npt,
+		  DDXPointPtr ppt)
+{
+	_glamor_poly_point(pDrawable, pGC, mode, npt, ppt, TRUE);
+}
+
+Bool
+glamor_poly_point_nf(DrawablePtr pDrawable, GCPtr pGC, int mode, int npt,
+		     DDXPointPtr ppt)
+{
+	return _glamor_poly_point(pDrawable, pGC, mode, npt, ppt, FALSE);
+}
+
+static Bool
+_glamor_poly_segment(DrawablePtr pDrawable, GCPtr pGC, int nseg,
+		     xSegment *pSeg, Bool fallback)
+{
+	if (!fallback 
+	    && glamor_ddx_fallback_check_gc(pGC)
+	    && glamor_ddx_fallback_check_pixmap(pDrawable))
+		return FALSE;
+
+	miPolySegment(pDrawable, pGC, nseg, pSeg);
+
+	return TRUE;
+}
+
+void
+glamor_poly_segment(DrawablePtr pDrawable, GCPtr pGC, int nseg,
+		    xSegment *pSeg)
+{
+	_glamor_poly_segment(pDrawable, pGC, nseg, pSeg, TRUE);
+}
+
+Bool
+glamor_poly_segment_nf(DrawablePtr pDrawable, GCPtr pGC, int nseg,
+		     xSegment *pSeg)
+{
+	return _glamor_poly_segment(pDrawable, pGC, nseg, pSeg, FALSE);
+}
diff --git a/glamor/glamor_priv.h b/glamor/glamor_priv.h
new file mode 100644
index 000000000..7b8f762c9
--- /dev/null
+++ b/glamor/glamor_priv.h
@@ -0,0 +1,1047 @@
+/*
+ * Copyright © 2008 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ *
+ * Authors:
+ *    Eric Anholt <eric@anholt.net>
+ *
+ */
+#ifndef GLAMOR_PRIV_H
+#define GLAMOR_PRIV_H
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "compiler.h"
+
+#include <xorg-server.h>
+#ifndef DEBUG
+#define NDEBUG
+#endif
+#include "glamor.h"
+#include "compat-api.h"
+
+#define GL_GLEXT_PROTOTYPES
+
+#ifdef GLAMOR_GLES2
+#include <GLES2/gl2.h>
+#include <GLES2/gl2ext.h>
+
+#define GLAMOR_DEFAULT_PRECISION   "precision mediump float;\n"
+#include "glamor_glext.h"
+#else
+#include <GL/gl.h>
+#include <GL/glext.h>
+#define GLAMOR_DEFAULT_PRECISION
+#endif
+
+#ifdef RENDER
+#include "glyphstr.h"
+#endif
+
+#include "glamor_debug.h"
+
+#include <list.h>
+/* The list.h rename all the function to add xorg_ prefix.
+   We add hack here to avoid the compile error when using
+   old version xserver header file.
+   These will be removed in future. */
+#ifndef xorg_list_entry
+#define xorg_list list
+#define xorg_list_for_each_entry list_for_each_entry
+#define xorg_list_for_each_entry_safe list_for_each_entry_safe
+#define xorg_list_del list_del
+#define xorg_list_add list_add
+#define xorg_list_append list_append
+#define xorg_list_init list_init
+#endif
+
+struct glamor_pixmap_private;
+
+typedef struct glamor_composite_shader {
+	GLuint prog;
+	GLint dest_to_dest_uniform_location;
+	GLint dest_to_source_uniform_location;
+	GLint dest_to_mask_uniform_location;
+	GLint source_uniform_location;
+	GLint mask_uniform_location;
+	GLint source_wh;
+	GLint mask_wh;
+	GLint source_repeat_mode;
+	GLint mask_repeat_mode;
+	union {
+		float source_solid_color[4];
+		struct {
+			struct glamor_pixmap_private *source_priv;
+			PicturePtr source;
+		};
+	};
+
+	union {
+		float mask_solid_color[4];
+		struct {
+			struct glamor_pixmap_private *mask_priv;
+			PicturePtr mask;
+		};
+	};
+} glamor_composite_shader;
+
+enum shader_source {
+	SHADER_SOURCE_SOLID,
+	SHADER_SOURCE_TEXTURE,
+	SHADER_SOURCE_TEXTURE_ALPHA,
+	SHADER_SOURCE_COUNT,
+};
+
+enum shader_mask {
+	SHADER_MASK_NONE,
+	SHADER_MASK_SOLID,
+	SHADER_MASK_TEXTURE,
+	SHADER_MASK_TEXTURE_ALPHA,
+	SHADER_MASK_COUNT,
+};
+
+enum shader_in {
+	SHADER_IN_SOURCE_ONLY,
+	SHADER_IN_NORMAL,
+	SHADER_IN_CA_SOURCE,
+	SHADER_IN_CA_ALPHA,
+	SHADER_IN_COUNT,
+};
+
+struct shader_key {
+	enum shader_source source;
+	enum shader_mask mask;
+	enum shader_in in;
+};
+
+struct blendinfo {
+	Bool dest_alpha;
+	Bool source_alpha;
+	GLenum source_blend;
+	GLenum dest_blend;
+};
+
+typedef struct {
+	INT16 x_src;
+	INT16 y_src;
+	INT16 x_mask;
+	INT16 y_mask;
+	INT16 x_dst;
+	INT16 y_dst;
+	INT16 width;
+	INT16 height;
+} glamor_composite_rect_t;
+
+
+enum glamor_vertex_type {
+	GLAMOR_VERTEX_POS,
+	GLAMOR_VERTEX_SOURCE,
+	GLAMOR_VERTEX_MASK
+};
+
+
+enum gradient_shader {
+	SHADER_GRADIENT_LINEAR,
+	SHADER_GRADIENT_RADIAL,
+	SHADER_GRADIENT_CONICAL,
+	SHADER_GRADIENT_COUNT,
+};
+
+enum gradient_shader_prog {
+	SHADER_GRADIENT_VS_PROG,
+	SHADER_GRADIENT_FS_MAIN_PROG,
+	SHADER_GRADIENT_FS_GETCOLOR_PROG,
+	SHADER_GRADIENT_PROG_COUNT,
+};
+
+struct glamor_screen_private;
+struct glamor_pixmap_private;
+
+enum glamor_gl_flavor {
+	GLAMOR_GL_DESKTOP,	// OPENGL API
+	GLAMOR_GL_ES2		// OPENGL ES2.0 API
+};
+
+#define GLAMOR_CREATE_PIXMAP_CPU  0x100
+#define GLAMOR_CREATE_PIXMAP_FIXUP 0x101
+#define GLAMOR_CREATE_FBO_NO_FBO   0x103
+#define GLAMOR_CREATE_PIXMAP_MAP 0x104
+
+#define GLAMOR_CREATE_TEXTURE_EXACT_SIZE 0x104
+
+#define GLAMOR_NUM_GLYPH_CACHE_FORMATS 2
+
+#define GLAMOR_COMPOSITE_VBO_VERT_CNT (64*1024)
+
+typedef struct {
+	PicturePtr picture;	/* Where the glyphs of the cache are stored */
+	GlyphPtr *glyphs;
+	uint16_t count;
+	uint16_t evict;
+} glamor_glyph_cache_t;
+
+#include "glamor_gl_dispatch.h"
+
+struct glamor_saved_procs { 
+	CloseScreenProcPtr close_screen;
+	CreateGCProcPtr create_gc;
+	CreatePixmapProcPtr create_pixmap;
+	DestroyPixmapProcPtr destroy_pixmap;
+	GetSpansProcPtr get_spans;
+	GetImageProcPtr get_image;
+	CompositeProcPtr composite;
+	CompositeRectsProcPtr composite_rects;
+	TrapezoidsProcPtr trapezoids;
+	GlyphsProcPtr glyphs;
+	ChangeWindowAttributesProcPtr change_window_attributes;
+	CopyWindowProcPtr copy_window;
+	BitmapToRegionProcPtr bitmap_to_region;
+	TrianglesProcPtr triangles;
+	AddTrapsProcPtr addtraps;
+	CreatePictureProcPtr create_picture;
+	DestroyPictureProcPtr destroy_picture;
+	UnrealizeGlyphProcPtr unrealize_glyph;
+	SetWindowPixmapProcPtr set_window_pixmap;
+};
+
+#ifdef GLAMOR_GLES2
+#define CACHE_FORMAT_COUNT 3
+#else
+#define CACHE_FORMAT_COUNT 2
+#endif
+
+#define CACHE_BUCKET_WCOUNT 4
+#define CACHE_BUCKET_HCOUNT 4
+
+#define GLAMOR_TICK_AFTER(t0, t1) 	\
+	(((int)(t1) - (int)(t0)) < 0)
+
+#define IDLE_STATE 0
+#define RENDER_STATE 1
+#define BLIT_STATE 2
+#define RENDER_IDEL_MAX 32
+
+typedef struct glamor_screen_private {
+	struct glamor_gl_dispatch _dispatch;
+	int yInverted;
+	unsigned int tick;
+	enum glamor_gl_flavor gl_flavor;
+	int has_pack_invert;
+	int has_fbo_blit;
+	int max_fbo_size;
+
+	struct xorg_list fbo_cache[CACHE_FORMAT_COUNT][CACHE_BUCKET_WCOUNT][CACHE_BUCKET_HCOUNT];
+	unsigned long    fbo_cache_watermark;
+
+	/* glamor_solid */
+	GLint solid_prog;
+	GLint solid_color_uniform_location;
+
+	/* vertext/elment_index buffer object for render */
+	GLuint vbo, ebo;
+	int vbo_offset;
+	int vbo_size;
+	char *vb;
+	int vb_stride;
+	Bool has_source_coords, has_mask_coords;
+	int render_nr_verts;
+	glamor_composite_shader composite_shader[SHADER_SOURCE_COUNT]
+						[SHADER_MASK_COUNT]
+						[SHADER_IN_COUNT];
+	glamor_glyph_cache_t glyphCaches[GLAMOR_NUM_GLYPH_CACHE_FORMATS];
+	Bool glyph_cache_initialized;
+
+	/* shaders to restore a texture to another texture.*/
+	GLint finish_access_prog[2];
+	GLint finish_access_revert[2];
+	GLint finish_access_swap_rb[2];
+
+	/* glamor_tile */
+	GLint tile_prog;
+	GLint tile_wh;
+
+	/* glamor gradient, 0 for small nstops, 1 for
+	   large nstops and 2 for dynamic generate. */
+	GLint gradient_prog[SHADER_GRADIENT_COUNT][3];
+	GLint linear_gradient_shaders[SHADER_GRADIENT_PROG_COUNT][3];
+	int linear_max_nstops;
+	GLint radial_gradient_shaders[SHADER_GRADIENT_PROG_COUNT][3];
+	int radial_max_nstops;
+
+	/* glamor trapezoid shader. */
+	GLint trapezoid_prog;
+
+	/* glamor_putimage */
+	GLint put_image_xybitmap_prog;
+	GLint put_image_xybitmap_fg_uniform_location;
+	GLint put_image_xybitmap_bg_uniform_location;
+
+	PixmapPtr *back_pixmap;
+	int screen_fbo;
+	struct glamor_saved_procs saved_procs;
+	char delayed_fallback_string[GLAMOR_DELAYED_STRING_MAX + 1];
+	int delayed_fallback_pending;
+	int flags;
+	int state;
+	unsigned int render_idle_cnt;
+	ScreenPtr screen;
+	int dri3_enabled;
+
+	/* xv */
+	GLint xv_prog;
+} glamor_screen_private;
+
+typedef enum glamor_access {
+	GLAMOR_ACCESS_RO,
+	GLAMOR_ACCESS_RW,
+	GLAMOR_ACCESS_WO,
+} glamor_access_t;
+
+#define GLAMOR_FBO_NORMAL     1
+#define GLAMOR_FBO_DOWNLOADED 2
+/* glamor_pixmap_fbo:
+ * @list:    to be used to link to the cache pool list.
+ * @expire:  when push to cache pool list, set a expire count.
+ * 	     will be freed when glamor_priv->tick is equal or
+ * 	     larger than this expire count in block handler.
+ * @pbo_valid: The pbo has a valid copy of the pixmap's data.
+ * @tex:     attached texture.
+ * @fb:      attached fbo.
+ * @pbo:     attached pbo.
+ * @width:   width of this fbo.
+ * @height:  height of this fbo.
+ * @format:  internal format of this fbo's texture.
+ * @type:    internal type of this fbo's texture.
+ * @glamor_priv: point to glamor private data.
+ */
+typedef struct glamor_pixmap_fbo {
+	struct xorg_list list;
+	unsigned int expire;
+	unsigned char pbo_valid;
+	GLuint tex;
+	GLuint fb;
+	GLuint pbo;
+	int width;
+	int height;
+	GLenum format;
+	GLenum type;
+	glamor_screen_private *glamor_priv;
+} glamor_pixmap_fbo;
+
+/*
+ * glamor_pixmap_private - glamor pixmap's private structure.
+ * @gl_fbo:
+ * 	0 		  	- The pixmap doesn't has a fbo attached to it.
+ * 	GLAMOR_FBO_NORMAL 	- The pixmap has a fbo and can be accessed normally.
+ * 	GLAMOR_FBO_DOWNLOADED 	- The pixmap has a fbo and already downloaded to
+ * 				  CPU, so it can only be treated as a in-memory pixmap
+ * 				  if this bit is set.
+ * @gl_tex:  The pixmap is in a gl texture originally.
+ * @is_picture: The drawable is attached to a picture.
+ * @pict_format: the corresponding picture's format.
+ * @pixmap: The corresponding pixmap's pointer.
+ *
+ * For GLAMOR_TEXTURE_LARGE, nbox should larger than 1.
+ * And the box and fbo will both have nbox elements.
+ * and box[i] store the relatively coords in this pixmap
+ * of the fbo[i]. The reason why use boxes not region to
+ * represent this structure is we may need to use overlapped
+ * boxes for one pixmap for some special reason.
+ *
+ * pixmap
+ * ******************
+ * *  fbo0 * fbo1   *
+ * *       *        *
+ * ******************
+ * *  fbo2 * fbo3   *
+ * *       *        *
+ * ******************
+ *
+ * Let's assume the texture has size of 1024x1024
+ * box[0] = {0,0,1024,1024}
+ * box[1] = {1024,0,2048,2048}
+ * ...
+ *
+ * For GLAMOR_TEXTURE_ATLAS nbox should be 1. And box
+ * and fbo both has one elements, and the box store
+ * the relatively coords in the fbo of this pixmap:
+ *
+ * fbo
+ * ******************
+ * *   pixmap       *
+ * *   *********    *
+ * *   *       *    *
+ * *   *********    *
+ * *                *
+ * ******************
+ *
+ * Assume the pixmap is at the (100,100) relatively to
+ * the fbo's origin.
+ * box[0]={100, 100, 1124, 1124};
+ *
+ * Considering large pixmap is not a normal case, to keep
+ * it simple, I designe it as the following way.
+ * When deal with a large pixmap, it split the working
+ * rectangle into serval boxes, and each box fit into a
+ * corresponding fbo. And then the rendering function will
+ * loop from the left-top box to the right-bottom box,
+ * each time, we will set current box and current fbo
+ * to the box and fbo elements. Thus the inner routines
+ * can handle it as normal, only the coords calculation need
+ * to aware of it's large pixmap.
+ *
+ * Currently, we haven't implemented the atlas pixmap.
+ *
+ **/
+
+typedef struct glamor_pixmap_clipped_regions{
+	int block_idx;
+	RegionPtr region;
+} glamor_pixmap_clipped_regions;
+
+#define SET_PIXMAP_FBO_CURRENT(priv, idx) 				\
+  do {									\
+	if (priv->type == GLAMOR_TEXTURE_LARGE) {			\
+		(priv)->large.base.fbo = priv->large.fbo_array[idx]; 	\
+		(priv)->large.box = priv->large.box_array[idx]; 	\
+	}								\
+  } while(0)
+
+typedef struct glamor_pixmap_private_base {
+	glamor_pixmap_type_t type;
+	unsigned char gl_fbo:2;
+	unsigned char is_picture:1;
+	unsigned char gl_tex:1;
+	glamor_pixmap_fbo *fbo;
+	PixmapPtr pixmap;
+	int drm_stride;
+	glamor_screen_private *glamor_priv;
+	PicturePtr picture;
+}glamor_pixmap_private_base_t;
+
+/*
+ * @base.fbo: current fbo.
+ * @box: current fbo's coords in the whole pixmap.
+ * @block_w: block width of this large pixmap.
+ * @block_h: block height of this large pixmap.
+ * @block_wcnt: block count in one block row.
+ * @block_hcnt: block count in one block column.
+ * @nbox: total block count.
+ * @box_array: contains each block's corresponding box.
+ * @fbo_array: contains each block's fbo pointer.
+ *
+ **/
+typedef struct glamor_pixmap_private_large {
+	union {
+		glamor_pixmap_type_t type;
+		glamor_pixmap_private_base_t base;
+	};
+	BoxRec box;
+	int block_w;
+	int block_h;
+	int block_wcnt;
+	int block_hcnt;
+	int nbox;
+	BoxPtr box_array;
+	glamor_pixmap_fbo **fbo_array;
+}glamor_pixmap_private_large_t;
+
+/*
+ * @box: the relative coords in the corresponding fbo.
+ */
+typedef struct glamor_pixmap_private_atlas {
+	union {
+		glamor_pixmap_type_t type;
+		glamor_pixmap_private_base_t base;
+	};
+	BoxRec box;
+}glamor_pixmap_private_atlas_t;
+
+typedef struct glamor_pixmap_private {
+	union {
+		glamor_pixmap_type_t type;
+		glamor_pixmap_private_base_t base;
+		glamor_pixmap_private_large_t large;
+		glamor_pixmap_private_atlas_t atlas;
+	};
+}glamor_pixmap_private;
+
+/* 
+ * Pixmap dynamic status, used by dynamic upload feature.
+ *
+ * GLAMOR_NONE:  initial status, don't need to do anything.
+ * GLAMOR_UPLOAD_PENDING: marked as need to be uploaded to gl texture.
+ * GLAMOR_UPLOAD_DONE: the pixmap has been uploaded successfully.
+ * GLAMOR_UPLOAD_FAILED: fail to upload the pixmap.
+ *
+ * */
+typedef enum glamor_pixmap_status {
+	GLAMOR_NONE,
+	GLAMOR_UPLOAD_PENDING,
+	GLAMOR_UPLOAD_DONE,
+	GLAMOR_UPLOAD_FAILED
+} glamor_pixmap_status_t;
+
+extern DevPrivateKey glamor_screen_private_key;
+extern DevPrivateKey glamor_pixmap_private_key;
+static inline glamor_screen_private *
+glamor_get_screen_private(ScreenPtr screen)
+{
+	return (glamor_screen_private *)
+	    dixLookupPrivate(&screen->devPrivates,
+			     glamor_screen_private_key);
+}
+
+static inline void
+glamor_set_screen_private(ScreenPtr screen, glamor_screen_private *priv)
+{
+	dixSetPrivate(&screen->devPrivates,
+		      glamor_screen_private_key,
+		      priv);
+}
+
+
+
+static inline glamor_pixmap_private *
+glamor_get_pixmap_private(PixmapPtr pixmap)
+{
+	glamor_pixmap_private *priv;
+	priv = dixLookupPrivate(&pixmap->devPrivates,
+				glamor_pixmap_private_key);
+	if (!priv) {
+		glamor_set_pixmap_type(pixmap, GLAMOR_MEMORY);
+		priv = dixLookupPrivate(&pixmap->devPrivates,
+					glamor_pixmap_private_key);
+	}
+	return priv;
+}
+
+void glamor_set_pixmap_private(PixmapPtr pixmap, glamor_pixmap_private *priv);
+
+/**
+ * Returns TRUE if the given planemask covers all the significant bits in the
+ * pixel values for pDrawable.
+ */
+static inline Bool
+glamor_pm_is_solid(DrawablePtr drawable, unsigned long planemask)
+{
+	return (planemask & FbFullMask(drawable->depth)) ==
+	    FbFullMask(drawable->depth);
+}
+
+extern int glamor_debug_level;
+
+/* glamor.c */
+PixmapPtr glamor_get_drawable_pixmap(DrawablePtr drawable);
+
+Bool glamor_destroy_pixmap(PixmapPtr pixmap);
+
+glamor_pixmap_fbo* glamor_pixmap_detach_fbo(glamor_pixmap_private *pixmap_priv);
+void glamor_pixmap_attach_fbo(PixmapPtr pixmap, glamor_pixmap_fbo *fbo);
+glamor_pixmap_fbo * glamor_create_fbo_from_tex(glamor_screen_private *glamor_priv,
+					       int w, int h, GLenum format, GLint tex, int flag);
+glamor_pixmap_fbo * glamor_create_fbo(glamor_screen_private *glamor_priv,
+				      int w, int h, GLenum format, int flag);
+void glamor_destroy_fbo(glamor_pixmap_fbo *fbo);
+void glamor_pixmap_destroy_fbo(glamor_pixmap_private *priv);
+void glamor_purge_fbo(glamor_pixmap_fbo *fbo);
+
+void glamor_init_pixmap_fbo(ScreenPtr screen);
+void glamor_fini_pixmap_fbo(ScreenPtr screen);
+Bool glamor_pixmap_fbo_fixup(ScreenPtr screen, PixmapPtr pixmap);
+void glamor_fbo_expire(glamor_screen_private *glamor_priv);
+
+glamor_pixmap_fbo *
+glamor_create_fbo_array(glamor_screen_private *glamor_priv,
+			int w, int h, GLenum format, int flag,
+			int block_w, int block_h, glamor_pixmap_private *);
+
+/* glamor_copyarea.c */
+RegionPtr
+glamor_copy_area(DrawablePtr src, DrawablePtr dst, GCPtr gc,
+		 int srcx, int srcy, int width, int height, int dstx,
+		 int dsty);
+void glamor_copy_n_to_n(DrawablePtr src, DrawablePtr dst, GCPtr gc,
+			BoxPtr box, int nbox, int dx, int dy, Bool reverse,
+			Bool upsidedown, Pixel bitplane, void *closure);
+
+/* glamor_copywindow.c */
+void glamor_copy_window(WindowPtr win, DDXPointRec old_origin,
+			RegionPtr src_region);
+
+/* glamor_core.c */
+Bool glamor_prepare_access(DrawablePtr drawable, glamor_access_t access);
+void glamor_finish_access(DrawablePtr drawable, glamor_access_t access);
+Bool glamor_prepare_access_window(WindowPtr window);
+void glamor_finish_access_window(WindowPtr window);
+Bool glamor_prepare_access_gc(GCPtr gc);
+void glamor_finish_access_gc(GCPtr gc);
+void glamor_init_finish_access_shaders(ScreenPtr screen);
+void glamor_fini_finish_access_shaders(ScreenPtr screen);
+const Bool glamor_get_drawable_location(const DrawablePtr drawable);
+void glamor_get_drawable_deltas(DrawablePtr drawable, PixmapPtr pixmap,
+				int *x, int *y);
+Bool glamor_stipple(PixmapPtr pixmap, PixmapPtr stipple,
+		    int x, int y, int width, int height,
+		    unsigned char alu, unsigned long planemask,
+		    unsigned long fg_pixel, unsigned long bg_pixel,
+		    int stipple_x, int stipple_y);
+GLint glamor_compile_glsl_prog(glamor_gl_dispatch * dispatch, GLenum type,
+			       const char *source);
+void glamor_link_glsl_prog(glamor_gl_dispatch * dispatch, GLint prog);
+void glamor_get_color_4f_from_pixel(PixmapPtr pixmap,
+				    unsigned long fg_pixel,
+				    GLfloat * color);
+
+int glamor_set_destination_pixmap(PixmapPtr pixmap);
+int glamor_set_destination_pixmap_priv(glamor_pixmap_private *
+				       pixmap_priv);
+void glamor_set_destination_pixmap_fbo(glamor_pixmap_fbo *, int, int, int, int);
+
+/* nc means no check. caller must ensure this pixmap has valid fbo.
+ * usually use the GLAMOR_PIXMAP_PRIV_HAS_FBO firstly. 
+ * */
+void glamor_set_destination_pixmap_priv_nc(glamor_pixmap_private *
+					   pixmap_priv);
+
+glamor_pixmap_fbo *
+glamor_es2_pixmap_read_prepare(PixmapPtr source, int x, int y, int w, int h, GLenum format,
+			       GLenum type, int no_alpha, int revert, int swap_rb);
+
+Bool glamor_set_alu(struct glamor_gl_dispatch *dispatch,
+		    unsigned char alu);
+Bool glamor_set_planemask(PixmapPtr pixmap, unsigned long planemask);
+Bool glamor_change_window_attributes(WindowPtr pWin, unsigned long mask);
+RegionPtr glamor_bitmap_to_region(PixmapPtr pixmap);
+Bool glamor_gl_has_extension(const char *extension);
+int glamor_gl_get_version(void);
+
+#define GLAMOR_GL_VERSION_ENCODE(major, minor) ( \
+          ((major) * 256)                       \
+        + ((minor) *   1))
+
+
+
+
+/* glamor_fill.c */
+Bool glamor_fill(DrawablePtr drawable,
+		 GCPtr gc, int x, int y, int width, int height, Bool fallback);
+Bool glamor_solid(PixmapPtr pixmap, int x, int y, int width, int height,
+		  unsigned char alu, unsigned long planemask,
+		  unsigned long fg_pixel);
+Bool
+glamor_solid_boxes(PixmapPtr pixmap,
+		   BoxPtr box, int nbox,
+		   unsigned long fg_pixel);
+
+/* glamor_fillspans.c */
+void glamor_fill_spans(DrawablePtr drawable,
+		       GCPtr gc,
+		       int n, DDXPointPtr points, int *widths, int sorted);
+
+void glamor_init_solid_shader(ScreenPtr screen);
+void glamor_fini_solid_shader(ScreenPtr screen);
+
+/* glamor_getspans.c */
+void
+
+glamor_get_spans(DrawablePtr drawable,
+		 int wmax,
+		 DDXPointPtr points,
+		 int *widths, int nspans, char *dst_start);
+
+/* glamor_glyphs.c */
+void glamor_glyphs_fini(ScreenPtr screen);
+void glamor_glyphs(CARD8 op,
+		   PicturePtr pSrc,
+		   PicturePtr pDst,
+		   PictFormatPtr maskFormat,
+		   INT16 xSrc,
+		   INT16 ySrc, int nlist, GlyphListPtr list,
+		   GlyphPtr * glyphs);
+
+/* glamor_setspans.c */
+void glamor_set_spans(DrawablePtr drawable, GCPtr gc, char *src,
+		      DDXPointPtr points, int *widths, int n, int sorted);
+
+/* glamor_polyfillrect.c */
+void
+glamor_poly_fill_rect(DrawablePtr drawable,
+		      GCPtr gc, int nrect, xRectangle * prect);
+
+/* glamor_polylines.c */
+void
+
+glamor_poly_lines(DrawablePtr drawable, GCPtr gc, int mode, int n,
+		  DDXPointPtr points);
+
+/* glamor_putimage.c */
+void
+
+glamor_put_image(DrawablePtr drawable, GCPtr gc, int depth, int x, int y,
+		 int w, int h, int leftPad, int format, char *bits);
+void glamor_init_putimage_shaders(ScreenPtr screen);
+void glamor_fini_putimage_shaders(ScreenPtr screen);
+
+/* glamor_render.c */
+Bool
+glamor_composite_clipped_region(CARD8 op,
+				PicturePtr source,
+				PicturePtr mask,
+				PicturePtr dest,
+				glamor_pixmap_private *soruce_pixmap_priv,
+				glamor_pixmap_private *mask_pixmap_priv,
+				glamor_pixmap_private *dest_pixmap_priv,
+				RegionPtr region,
+				int x_source,
+				int y_source,
+				int x_mask,
+				int y_mask,
+				int x_dest,
+				int y_dest);
+
+void glamor_composite(CARD8 op,
+		      PicturePtr pSrc,
+		      PicturePtr pMask,
+		      PicturePtr pDst,
+		      INT16 xSrc,
+		      INT16 ySrc,
+		      INT16 xMask,
+		      INT16 yMask,
+		      INT16 xDst, INT16 yDst, CARD16 width, CARD16 height);
+
+void glamor_init_composite_shaders(ScreenPtr screen);
+void glamor_fini_composite_shaders(ScreenPtr screen);
+void glamor_composite_glyph_rects(CARD8 op,
+				  PicturePtr src, PicturePtr mask,
+				  PicturePtr dst, int nrect,
+				  glamor_composite_rect_t * rects);
+void glamor_composite_rects (CARD8         op,
+			     PicturePtr    pDst,
+			     xRenderColor  *color,
+			     int           nRect,
+			     xRectangle    *rects);
+void glamor_init_trapezoid_shader(ScreenPtr screen);
+void glamor_fini_trapezoid_shader(ScreenPtr screen);
+PicturePtr glamor_convert_gradient_picture(ScreenPtr screen,
+                                           PicturePtr source,
+                                           int x_source,
+                                           int y_source, int width, int height);
+
+Bool glamor_composite_choose_shader(CARD8 op,
+                                    PicturePtr source,
+                                    PicturePtr mask,
+                                    PicturePtr dest,
+			     	    glamor_pixmap_private *source_pixmap_priv,
+			     	    glamor_pixmap_private *mask_pixmap_priv,
+			     	    glamor_pixmap_private *dest_pixmap_priv,
+                                    struct shader_key *s_key,
+				    glamor_composite_shader **shader, 
+				    struct blendinfo *op_info,
+                                    PictFormatShort *psaved_source_format);
+
+void
+glamor_composite_set_shader_blend(glamor_pixmap_private *dest_priv,
+				  struct shader_key *key,
+				  glamor_composite_shader *shader,
+				  struct blendinfo *op_info);
+
+void glamor_setup_composite_vbo(ScreenPtr screen, int n_verts);
+void glamor_emit_composite_vert(ScreenPtr screen,
+                                const float *src_coords,
+                                const float *mask_coords,
+                                const float *dst_coords, int i);
+
+/* glamor_trapezoid.c */
+void glamor_trapezoids(CARD8 op,
+		       PicturePtr src, PicturePtr dst,
+		       PictFormatPtr mask_format, INT16 x_src, INT16 y_src,
+		       int ntrap, xTrapezoid * traps);
+
+/* glamor_tile.c */
+Bool glamor_tile(PixmapPtr pixmap, PixmapPtr tile,
+		 int x, int y, int width, int height,
+		 unsigned char alu, unsigned long planemask,
+		 int tile_x, int tile_y);
+void glamor_init_tile_shader(ScreenPtr screen);
+void glamor_fini_tile_shader(ScreenPtr screen);
+
+/* glamor_gradient.c */
+void glamor_init_gradient_shader(ScreenPtr screen);
+void glamor_fini_gradient_shader(ScreenPtr screen);
+PicturePtr glamor_generate_linear_gradient_picture(ScreenPtr screen,
+                                                   PicturePtr src_picture,
+                                                   int x_source, int y_source,
+                                                   int width, int height,
+                                                   PictFormatShort format);
+PicturePtr glamor_generate_radial_gradient_picture(ScreenPtr screen,
+                                                   PicturePtr src_picture,
+                                                   int x_source, int y_source,
+                                                   int width, int height,
+                                                   PictFormatShort format);
+
+/* glamor_triangles.c */
+void
+
+glamor_triangles(CARD8 op,
+		 PicturePtr pSrc,
+		 PicturePtr pDst,
+		 PictFormatPtr maskFormat,
+		 INT16 xSrc, INT16 ySrc, int ntris, xTriangle * tris);
+
+/* glamor_pixmap.c */
+
+void glamor_pixmap_init(ScreenPtr screen);
+void glamor_pixmap_fini(ScreenPtr screen);
+/** 
+ * Download a pixmap's texture to cpu memory. If success,
+ * One copy of current pixmap's texture will be put into
+ * the pixmap->devPrivate.ptr. Will use pbo to map to 
+ * the pointer if possible.
+ * The pixmap must be a gl texture pixmap. gl_fbo and
+ * gl_tex must be 1. Used by glamor_prepare_access.
+ *
+ */
+Bool glamor_download_pixmap_to_cpu(PixmapPtr pixmap,
+				   glamor_access_t access);
+
+void *
+glamor_download_sub_pixmap_to_cpu(PixmapPtr pixmap, int x, int y, int w, int h,
+				  int stride, void *bits, int pbo, glamor_access_t access);
+
+
+/**
+ * Restore a pixmap's data which is downloaded by 
+ * glamor_download_pixmap_to_cpu to its original 
+ * gl texture. Used by glamor_finish_access. 
+ *
+ * The pixmap must be
+ * in texture originally. In other word, the gl_fbo
+ * must be 1.
+ **/
+void glamor_restore_pixmap_to_texture(PixmapPtr pixmap);
+
+/**
+ * According to the flag,
+ * if the flag is GLAMOR_CREATE_FBO_NO_FBO then just ensure
+ * the fbo has a valid texture. Otherwise, it will ensure
+ * the fbo has valid texture and attach to a valid fb.
+ * If the fbo already has a valid glfbo then do nothing.
+ */
+Bool
+glamor_pixmap_ensure_fbo(PixmapPtr pixmap, GLenum format, int flag);
+
+/**
+ * Upload a pixmap to gl texture. Used by dynamic pixmap
+ * uploading feature. The pixmap must be a software pixmap.
+ * This function will change current FBO and current shaders.
+ */
+enum glamor_pixmap_status glamor_upload_pixmap_to_texture(PixmapPtr
+							  pixmap);
+
+Bool
+glamor_upload_sub_pixmap_to_texture(PixmapPtr pixmap, int x, int y, int w, int h,
+				    int stride, void *bits, int pbo);
+
+PixmapPtr
+glamor_get_sub_pixmap(PixmapPtr pixmap, int x, int y,
+		      int w, int h, glamor_access_t access);
+void
+glamor_put_sub_pixmap(PixmapPtr sub_pixmap, PixmapPtr pixmap, int x, int y,
+		      int w, int h, glamor_access_t access);
+
+glamor_pixmap_clipped_regions *
+glamor_compute_clipped_regions(glamor_pixmap_private *priv, RegionPtr region,
+			       int *clipped_nbox, int repeat_type,
+			       int reverse, int upsidedown);
+
+glamor_pixmap_clipped_regions *
+glamor_compute_clipped_regions_ext(glamor_pixmap_private *pixmap_priv,
+				   RegionPtr region,
+				   int *n_region,
+				   int inner_block_w, int inner_block_h,
+			           int reverse, int upsidedown);
+
+glamor_pixmap_clipped_regions *
+glamor_compute_transform_clipped_regions(glamor_pixmap_private *priv, struct pixman_transform *transform,
+					 RegionPtr region, int *n_region, int dx, int dy, int repeat_type,
+			                 int reverse, int upsidedown);
+
+Bool
+glamor_composite_largepixmap_region(CARD8 op,
+			  PicturePtr source,
+			  PicturePtr mask,
+			  PicturePtr dest,
+			  glamor_pixmap_private * source_pixmap_priv,
+			  glamor_pixmap_private * mask_pixmap_priv,
+			  glamor_pixmap_private * dest_pixmap_priv,
+			  RegionPtr region, Bool force_clip,
+			  INT16 x_source,
+			  INT16 y_source,
+			  INT16 x_mask,
+			  INT16 y_mask,
+			  INT16 x_dest, INT16 y_dest,
+			  CARD16 width, CARD16 height);
+
+Bool
+glamor_get_transform_block_size(struct pixman_transform *transform,
+			   int block_w, int block_h,
+			   int *transformed_block_w,
+			   int *transformed_block_h);
+
+void
+glamor_get_transform_extent_from_box(struct pixman_box32 *temp_box,
+		struct pixman_transform *transform);
+
+/**
+ * Upload a picture to gl texture. Similar to the
+ * glamor_upload_pixmap_to_texture. Used in rendering.
+ **/
+enum glamor_pixmap_status
+ glamor_upload_picture_to_texture(PicturePtr picture);
+
+/**
+ * Upload bits to a pixmap's texture. This function will
+ * convert the bits to the specified format/type format
+ * if the conversion is unavoidable.
+ **/
+Bool glamor_upload_bits_to_pixmap_texture(PixmapPtr pixmap, GLenum format, GLenum type,
+					  int no_alpha, int revert, int swap_rb, void *bits);
+
+/**
+ * Destroy all the resources allocated on the uploading
+ * phase, includs the tex and fbo.
+ **/
+void glamor_destroy_upload_pixmap(PixmapPtr pixmap);
+
+int glamor_create_picture(PicturePtr picture);
+
+void glamor_set_window_pixmap(WindowPtr pWindow, PixmapPtr pPixmap);
+
+Bool
+glamor_prepare_access_picture(PicturePtr picture, glamor_access_t access);
+
+void glamor_finish_access_picture(PicturePtr picture, glamor_access_t access);
+
+void glamor_destroy_picture(PicturePtr picture);
+
+/* fixup a fbo to the exact size as the pixmap. */
+Bool
+glamor_fixup_pixmap_priv(ScreenPtr screen, glamor_pixmap_private *pixmap_priv);
+
+void
+glamor_picture_format_fixup(PicturePtr picture,
+			    glamor_pixmap_private * pixmap_priv);
+
+void
+glamor_get_image(DrawablePtr pDrawable, int x, int y, int w, int h,
+		 unsigned int format, unsigned long planeMask, char *d);
+
+void
+glamor_add_traps(PicturePtr pPicture,
+		 INT16 x_off, 
+		 INT16 y_off, int ntrap, xTrap * traps);
+
+RegionPtr
+glamor_copy_plane(DrawablePtr pSrc, DrawablePtr pDst, GCPtr pGC,
+		  int srcx, int srcy, int w, int h, int dstx, int dsty,
+		  unsigned long bitPlane);
+
+void
+glamor_image_glyph_blt(DrawablePtr pDrawable, GCPtr pGC,
+                    int x, int y, unsigned int nglyph,
+                    CharInfoPtr * ppci, pointer pglyphBase);
+
+void
+glamor_poly_glyph_blt(DrawablePtr pDrawable, GCPtr pGC,
+                    int x, int y, unsigned int nglyph,
+                    CharInfoPtr * ppci, pointer pglyphBase);
+
+void
+glamor_push_pixels(GCPtr pGC, PixmapPtr pBitmap,
+		   DrawablePtr pDrawable, int w, int h, int x, int y);
+
+void
+glamor_poly_point(DrawablePtr pDrawable, GCPtr pGC, int mode, int npt,
+		  DDXPointPtr ppt);
+
+void
+glamor_poly_segment(DrawablePtr pDrawable, GCPtr pGC, int nseg,
+		    xSegment *pSeg);
+
+void
+glamor_poly_line(DrawablePtr pDrawable, GCPtr pGC, int mode, int npt,
+		 DDXPointPtr ppt);
+
+void
+glamor_composite_rectangles(CARD8	 op,
+			 PicturePtr	 dst,
+			 xRenderColor	*color,
+			 int		 num_rects,
+			 xRectangle	*rects);
+
+/* glamor_xv */
+typedef struct {
+    uint32_t	 transform_index;
+    uint32_t	 gamma; /* gamma value x 1000 */
+    int brightness;
+    int saturation;
+    int hue;
+    int contrast;
+
+    DrawablePtr pDraw;
+    PixmapPtr pPixmap;
+    uint32_t src_pitch;
+    uint8_t *src_addr;
+    int src_w, src_h, dst_w, dst_h;
+    int src_x, src_y, drw_x, drw_y;
+    int w, h;
+    RegionRec     clip;
+    PixmapPtr src_pix[3]; /* y, u, v for planar */
+    int src_pix_w, src_pix_h;
+} glamor_port_private;
+
+void glamor_init_xv_shader(ScreenPtr screen);
+void glamor_fini_xv_shader(ScreenPtr screen);
+
+#include"glamor_utils.h"
+
+/* Dynamic pixmap upload to texture if needed. 
+ * Sometimes, the target is a gl texture pixmap/picture,
+ * but the source or mask is in cpu memory. In that case,
+ * upload the source/mask to gl texture and then avoid 
+ * fallback the whole process to cpu. Most of the time,
+ * this will increase performance obviously. */
+
+#define GLAMOR_PIXMAP_DYNAMIC_UPLOAD
+#define GLAMOR_GRADIENT_SHADER
+#define GLAMOR_TRAPEZOID_SHADER
+#define GLAMOR_TEXTURED_LARGE_PIXMAP 1
+#define WALKAROUND_LARGE_TEXTURE_MAP
+#if 0
+#define MAX_FBO_SIZE 32 /* For test purpose only. */
+#endif
+//#define GLYPHS_NO_EDEGEMAP_OVERLAP_CHECK
+#define GLYPHS_EDEGE_OVERLAP_LOOSE_CHECK
+
+#endif				/* GLAMOR_PRIV_H */
diff --git a/glamor/glamor_putimage.c b/glamor/glamor_putimage.c
new file mode 100644
index 000000000..99f7ac6f5
--- /dev/null
+++ b/glamor/glamor_putimage.c
@@ -0,0 +1,363 @@
+/*
+ * Copyright © 2009 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ *
+ * Authors:
+ *    Eric Anholt <eric@anholt.net>
+ *    Zhigang Gong <zhigang.gong@linux.intel.com>
+ *
+ */
+
+
+/** @file glamor_putaimge.c
+ *
+ * XPutImage implementation
+ */
+#include "glamor_priv.h"
+
+void
+glamor_init_putimage_shaders(ScreenPtr screen)
+{
+#if 0
+	glamor_screen_private *glamor_priv =
+	    glamor_get_screen_private(screen);
+	const char *xybitmap_vs =
+	    "uniform float x_bias;\n" "uniform float x_scale;\n"
+	    "uniform float y_bias;\n" "uniform float y_scale;\n"
+	    "varying vec2 bitmap_coords;\n" "void main()\n" "{\n"
+	    "	gl_Position = vec4((gl_Vertex.x + x_bias) * x_scale,\n"
+	    "			   (gl_Vertex.y + y_bias) * y_scale,\n"
+	    "			   0,\n"
+	    "			   1);\n"
+	    "	bitmap_coords = gl_MultiTexCoord0.xy;\n" "}\n";
+	const char *xybitmap_fs =
+	    "uniform vec4 fg, bg;\n" "varying vec2 bitmap_coords;\n"
+	    "uniform sampler2D bitmap_sampler;\n" "void main()\n" "{\n"
+	    "	float bitmap_value = texture2D(bitmap_sampler,\n"
+	    "				       bitmap_coords).x;\n"
+	    "	gl_FragColor = mix(bg, fg, bitmap_value);\n" "}\n";
+	GLint fs_prog, vs_prog, prog;
+	GLint sampler_uniform_location;
+
+	if (!GLEW_ARB_fragment_shader)
+		return;
+
+	prog = dispatch->glCreateProgram();
+	vs_prog = glamor_compile_glsl_prog(GL_VERTEX_SHADER, xybitmap_vs);
+	fs_prog =
+	    glamor_compile_glsl_prog(GL_FRAGMENT_SHADER, xybitmap_fs);
+	dispatch->glAttachShader(prog, vs_prog);
+	dispatch->glAttachShader(prog, fs_prog);
+	glamor_link_glsl_prog(prog);
+
+	dispatch->glUseProgram(prog);
+	sampler_uniform_location =
+	    dispatch->glGetUniformLocation(prog, "bitmap_sampler");
+	dispatch->glUniform1i(sampler_uniform_location, 0);
+
+	glamor_priv->put_image_xybitmap_fg_uniform_location =
+	    dispatch->glGetUniformLocation(prog, "fg");
+	glamor_priv->put_image_xybitmap_bg_uniform_location =
+	    dispatch->glGetUniformLocation(prog, "bg");
+	glamor_get_transform_uniform_locations(prog,
+					       &glamor_priv->put_image_xybitmap_transform);
+	glamor_priv->put_image_xybitmap_prog = prog;
+	dispatch->glUseProgram(0);
+#endif
+}
+
+
+/* Do an XYBitmap putimage.  The bits are byte-aligned rows of bitmap
+ * data (where each row starts at a bit index of left_pad), and the
+ * destination gets filled with the gc's fg color where the bitmap is set
+ * and the bg color where the bitmap is unset.
+ *
+ * Implement this by passing the bitmap right through to GL, and sampling
+ * it to choose between fg and bg in the fragment shader.  The driver may
+ * be exploding the bitmap up to be an 8-bit alpha texture, in which
+ * case we might be better off just doing the fg/bg choosing in the CPU
+ * and just draw the resulting texture to the destination.
+ */
+#if 0
+
+static int
+y_flip(PixmapPtr pixmap, int y)
+{
+	ScreenPtr screen = pixmap->drawable.pScreen;
+	PixmapPtr screen_pixmap = screen->GetScreenPixmap(screen);
+
+	if (pixmap == screen_pixmap)
+		return (pixmap->drawable.height - 1) - y;
+	else
+		return y;
+}
+
+
+static void
+glamor_put_image_xybitmap(DrawablePtr drawable, GCPtr gc,
+			  int x, int y, int w, int h, int left_pad,
+			  int image_format, char *bits)
+{
+	ScreenPtr screen = drawable->pScreen;
+	PixmapPtr pixmap = glamor_get_drawable_pixmap(drawable);
+	glamor_screen_private *glamor_priv =
+	    glamor_get_screen_private(screen);
+	float fg[4], bg[4];
+	GLuint tex;
+	unsigned int stride = PixmapBytePad(1, w + left_pad);
+	RegionPtr clip;
+	BoxPtr box;
+	int nbox;
+	float dest_coords[8];
+	const float bitmap_coords[8] = {
+		0.0, 0.0,
+		1.0, 0.0,
+		1.0, 1.0,
+		0.0, 1.0,
+	};
+	GLfloat xscale, yscale;
+	glamor_pixmap_private *pixmap_priv;
+
+	pixmap_priv = glamor_get_pixmap_private(pixmap);
+
+	pixmap_priv_get_scale(pixmap_priv, &xscale, &yscale);
+
+	glamor_set_normalize_vcoords(xscale, yscale,
+				     x, y,
+				     x + w, y + h,
+				     glamor_priv->yInverted, dest_coords);
+
+	glamor_fallback("glamor_put_image_xybitmap: disabled\n");
+	goto fail;
+
+	if (glamor_priv->put_image_xybitmap_prog == 0) {
+		ErrorF("no program for xybitmap putimage\n");
+		goto fail;
+	}
+
+	glamor_set_alu(gc->alu);
+	if (!glamor_set_planemask(pixmap, gc->planemask))
+		goto fail;
+
+	dispatch->glUseProgram(glamor_priv->put_image_xybitmap_prog);
+
+	glamor_get_color_4f_from_pixel(pixmap, gc->fgPixel, fg);
+	dispatch->glUniform4fv
+	    (glamor_priv->put_image_xybitmap_fg_uniform_location, 1, fg);
+	glamor_get_color_4f_from_pixel(pixmap, gc->bgPixel, bg);
+	dispatch->glUniform4fv
+	    (glamor_priv->put_image_xybitmap_bg_uniform_location, 1, bg);
+
+	dispatch->glGenTextures(1, &tex);
+	dispatch->glActiveTexture(GL_TEXTURE0);
+	dispatch->glEnable(GL_TEXTURE_2D);
+	dispatch->glBindTexture(GL_TEXTURE_2D, tex);
+	dispatch->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER,
+				  GL_NEAREST);
+	dispatch->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER,
+				  GL_NEAREST);
+	dispatch->glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
+	dispatch->glPixelStorei(GL_UNPACK_ROW_LENGTH, stride * 8);
+	dispatch->glPixelStorei(GL_UNPACK_SKIP_PIXELS, left_pad);
+	dispatch->glTexImage2D(GL_TEXTURE_2D, 0, GL_ALPHA,
+			       w, h, 0, GL_COLOR_INDEX, GL_BITMAP, bits);
+	dispatch->glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
+	dispatch->glPixelStorei(GL_UNPACK_SKIP_PIXELS, 0);
+
+	/* Now that we've set up our bitmap texture and the shader, shove
+	 * the destination rectangle through the cliprects and run the
+	 * shader on the resulting fragments.
+	 */
+	dispatch->glVertexPointer(2, GL_FLOAT, 0, dest_coords);
+	dispatch->glEnableClientState(GL_VERTEX_ARRAY);
+	dispatch->glClientActiveTexture(GL_TEXTURE0);
+	dispatch->glTexCoordPointer(2, GL_FLOAT, 0, bitmap_coords);
+	dispatch->glEnableClientState(GL_TEXTURE_COORD_ARRAY);
+
+	dispatch->glEnable(GL_SCISSOR_TEST);
+	clip = fbGetCompositeClip(gc);
+	for (nbox = REGION_NUM_RECTS(clip),
+	     box = REGION_RECTS(clip); nbox--; box++) {
+		int x1 = x;
+		int y1 = y;
+		int x2 = x + w;
+		int y2 = y + h;
+
+		if (x1 < box->x1)
+			x1 = box->x1;
+		if (y1 < box->y1)
+			y1 = box->y1;
+		if (x2 > box->x2)
+			x2 = box->x2;
+		if (y2 > box->y2)
+			y2 = box->y2;
+		if (x1 >= x2 || y1 >= y2)
+			continue;
+
+		dispatch->glScissor(box->x1,
+				    y_flip(pixmap, box->y1),
+				    box->x2 - box->x1, box->y2 - box->y1);
+		dispatch->glDrawArrays(GL_QUADS, 0, 4);
+	}
+
+	dispatch->glDisable(GL_SCISSOR_TEST);
+	glamor_set_alu(GXcopy);
+	glamor_set_planemask(pixmap, ~0);
+	dispatch->glDeleteTextures(1, &tex);
+	dispatch->glDisable(GL_TEXTURE_2D);
+	dispatch->glDisableClientState(GL_VERTEX_ARRAY);
+	dispatch->glDisableClientState(GL_TEXTURE_COORD_ARRAY);
+	return;
+	glamor_set_alu(GXcopy);
+	glamor_set_planemask(pixmap, ~0);
+	glamor_fallback(": to %p (%c)\n",
+			drawable, glamor_get_drawable_location(drawable));
+fail:
+	if (glamor_prepare_access(drawable, GLAMOR_ACCESS_RW)) {
+		fbPutImage(drawable, gc, 1, x, y, w, h, left_pad, XYBitmap,
+			   bits);
+		glamor_finish_access(drawable, GLAMOR_ACCESS_RW);
+	}
+}
+#endif
+
+void
+glamor_fini_putimage_shaders(ScreenPtr screen)
+{
+}
+
+
+static Bool 
+_glamor_put_image(DrawablePtr drawable, GCPtr gc, int depth, int x, int y,
+		 int w, int h, int left_pad, int image_format, char *bits, Bool fallback)
+{
+	PixmapPtr pixmap = glamor_get_drawable_pixmap(drawable);
+	glamor_pixmap_private *pixmap_priv =
+	    glamor_get_pixmap_private(pixmap);
+	RegionPtr clip;
+	int x_off, y_off;
+	Bool ret = FALSE;
+	PixmapPtr temp_pixmap, sub_pixmap;
+	glamor_pixmap_private *temp_pixmap_priv;
+	BoxRec box;
+
+	glamor_get_drawable_deltas(drawable, pixmap, &x_off, &y_off);
+	clip = fbGetCompositeClip(gc);
+	if (image_format == XYBitmap) {
+		assert(depth == 1);
+		goto fail;
+	}
+
+	if (!GLAMOR_PIXMAP_PRIV_HAS_FBO(pixmap_priv)) {
+		glamor_fallback("has no fbo.\n");
+		goto fail;
+	}
+
+	if (image_format != ZPixmap) {
+		glamor_fallback("non-ZPixmap\n");
+		goto fail;
+	}
+
+	if (!glamor_set_planemask(pixmap, gc->planemask)) {
+		goto fail;
+	}
+	/* create a temporary pixmap and upload the bits to that
+	 * pixmap, then apply clip copy it to the destination pixmap.*/
+	box.x1 = x + drawable->x;
+	box.y1 = y + drawable->y;
+	box.x2 = x + w + drawable->x;
+	box.y2 = y + h + drawable->y;
+
+	if ((clip != NULL && RegionContainsRect(clip, &box) != rgnIN)
+	     || gc->alu != GXcopy) {
+		temp_pixmap = glamor_create_pixmap(drawable->pScreen, w, h, depth, 0);
+		if (temp_pixmap == NULL)
+			goto fail;
+
+		temp_pixmap_priv = glamor_get_pixmap_private(temp_pixmap);
+
+		if (GLAMOR_PIXMAP_PRIV_IS_PICTURE(pixmap_priv)) {
+			temp_pixmap_priv->base.picture = pixmap_priv->base.picture;
+			temp_pixmap_priv->base.is_picture = pixmap_priv->base.is_picture;
+		}
+
+		glamor_upload_sub_pixmap_to_texture(temp_pixmap, 0, 0, w, h,
+						    pixmap->devKind, bits, 0);
+
+		glamor_copy_area(&temp_pixmap->drawable, drawable, gc, 0, 0, w, h, x, y);
+		glamor_destroy_pixmap(temp_pixmap);
+	} else
+		glamor_upload_sub_pixmap_to_texture(pixmap, x + drawable->x + x_off, y + drawable->y + y_off,
+						    w, h, PixmapBytePad(w, depth), bits, 0);
+	ret = TRUE;
+	goto done;
+
+fail:
+	glamor_set_planemask(pixmap, ~0);
+
+	if (!fallback
+	    && glamor_ddx_fallback_check_pixmap(&pixmap->drawable))
+		goto done;
+
+	glamor_fallback("to %p (%c)\n",
+			drawable, glamor_get_drawable_location(drawable));
+
+	sub_pixmap = glamor_get_sub_pixmap(pixmap, x + x_off + drawable->x,
+					   y + y_off + drawable->y, w, h,
+					   GLAMOR_ACCESS_RW);
+	if (sub_pixmap) {
+		if (clip != NULL)
+			pixman_region_translate (clip, -x - drawable->x, -y - drawable->y);
+
+		fbPutImage(&sub_pixmap->drawable, gc, depth, 0, 0, w, h,
+			   left_pad, image_format, bits);
+
+		glamor_put_sub_pixmap(sub_pixmap, pixmap,
+				      x + x_off + drawable->x,
+				      y + y_off + drawable->y,
+				      w, h, GLAMOR_ACCESS_RW);
+		if (clip != NULL)
+			pixman_region_translate (clip, x + drawable->x, y + drawable->y);
+	} else
+		fbPutImage(drawable, gc, depth, x, y, w, h,
+			   left_pad, image_format, bits);
+	ret = TRUE;
+
+done:
+	return ret;
+}
+
+void
+glamor_put_image(DrawablePtr drawable, GCPtr gc, int depth, int x, int y,
+		 int w, int h, int left_pad, int image_format, char *bits)
+{
+	_glamor_put_image(drawable, gc, depth, x, y, w, h, 
+			left_pad, image_format, bits, TRUE);
+}
+
+Bool
+glamor_put_image_nf(DrawablePtr drawable, GCPtr gc, int depth, int x, int y,
+		 int w, int h, int left_pad, int image_format, char *bits)
+{
+	return _glamor_put_image(drawable, gc, depth, x, y, w, h, 
+				left_pad, image_format, bits, FALSE);
+}
+
diff --git a/glamor/glamor_render.c b/glamor/glamor_render.c
new file mode 100644
index 000000000..76a571f8b
--- /dev/null
+++ b/glamor/glamor_render.c
@@ -0,0 +1,2135 @@
+/*
+ * Copyright © 2009 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ *
+ * Authors:
+ *    Eric Anholt <eric@anholt.net>
+ *    Zhigang Gong <zhigang.gong@linux.intel.com>
+ *    Junyan He <junyan.he@linux.intel.com>
+ *
+ */
+
+/** @file glamor_render.c
+ *
+ * Render acceleration implementation
+ */
+
+#include "glamor_priv.h"
+
+#ifdef RENDER
+#include "mipict.h"
+#include "fbpict.h"
+#if 0
+//#define DEBUGF(str, ...)  do {} while(0)
+#define DEBUGF(str, ...) ErrorF(str, ##__VA_ARGS__)
+//#define DEBUGRegionPrint(x) do {} while (0)
+#define DEBUGRegionPrint RegionPrint
+#endif
+
+static struct blendinfo composite_op_info[] = {
+	[PictOpClear] = {0, 0, GL_ZERO, GL_ZERO},
+	[PictOpSrc] = {0, 0, GL_ONE, GL_ZERO},
+	[PictOpDst] = {0, 0, GL_ZERO, GL_ONE},
+	[PictOpOver] = {0, 1, GL_ONE, GL_ONE_MINUS_SRC_ALPHA},
+	[PictOpOverReverse] = {1, 0, GL_ONE_MINUS_DST_ALPHA, GL_ONE},
+	[PictOpIn] = {1, 0, GL_DST_ALPHA, GL_ZERO},
+	[PictOpInReverse] = {0, 1, GL_ZERO, GL_SRC_ALPHA},
+	[PictOpOut] = {1, 0, GL_ONE_MINUS_DST_ALPHA, GL_ZERO},
+	[PictOpOutReverse] = {0, 1, GL_ZERO, GL_ONE_MINUS_SRC_ALPHA},
+	[PictOpAtop] = {1, 1, GL_DST_ALPHA, GL_ONE_MINUS_SRC_ALPHA},
+	[PictOpAtopReverse] = {1, 1, GL_ONE_MINUS_DST_ALPHA, GL_SRC_ALPHA},
+	[PictOpXor] =
+	    {1, 1, GL_ONE_MINUS_DST_ALPHA, GL_ONE_MINUS_SRC_ALPHA},
+	[PictOpAdd] = {0, 0, GL_ONE, GL_ONE},
+};
+#define RepeatFix			10
+static GLuint
+glamor_create_composite_fs(glamor_gl_dispatch * dispatch,
+			   struct shader_key *key)
+{
+	const char *repeat_define =
+	    "#define RepeatNone               	      0\n"
+	    "#define RepeatNormal                     1\n"
+	    "#define RepeatPad                        2\n"
+	    "#define RepeatReflect                    3\n"
+	    "#define RepeatFix		      	      10\n"
+	    "uniform int 			source_repeat_mode;\n"
+	    "uniform int 			mask_repeat_mode;\n";
+	const char *relocate_texture =
+	    GLAMOR_DEFAULT_PRECISION
+	    "vec2 rel_tex_coord(vec2 texture, vec4 wh, int repeat) \n"
+	    "{\n"
+	    "   vec2 rel_tex; \n"
+	    "   rel_tex = texture * wh.xy; \n"
+	    "	if (repeat == RepeatNone)\n"
+	    "		return rel_tex; \n"
+	    "   else if (repeat == RepeatNormal) \n"
+	    "   	rel_tex = floor(rel_tex) + (fract(rel_tex) / wh.xy); 	\n"
+	    "   else if(repeat == RepeatPad) { \n"
+	    "           if (rel_tex.x >= 1.0) rel_tex.x = 1.0 - wh.z * wh.x / 2.;  	\n"
+	    "		else if(rel_tex.x < 0.0) rel_tex.x = 0.0;	  	\n"
+	    "           if (rel_tex.y >= 1.0) rel_tex.y = 1.0 - wh.w * wh.y / 2.;	\n"
+	    "		else if(rel_tex.y < 0.0) rel_tex.y = 0.0;	\n"
+	    "   	rel_tex = rel_tex / wh.xy; \n"
+	    "    } \n"
+	    "   else if(repeat == RepeatReflect) {\n"
+	    "		if ((1.0 - mod(abs(floor(rel_tex.x)), 2.0)) < 0.001)\n"
+	    "			rel_tex.x = 2.0 - (1.0 - fract(rel_tex.x))/wh.x;\n"
+	    "		else \n"
+	    "			rel_tex.x = fract(rel_tex.x)/wh.x;\n"
+	    "		if ((1.0 - mod(abs(floor(rel_tex.y)), 2.0)) < 0.001)\n"
+	    "			rel_tex.y = 2.0 - (1.0 - fract(rel_tex.y))/wh.y;\n"
+	    "		else \n"
+	    "			rel_tex.y = fract(rel_tex.y)/wh.y;\n"
+	    "    } \n"
+            "   return rel_tex; \n"
+	    "}\n";
+	/* The texture and the pixmap size is not match eaxctly, so can't sample it directly.
+	 * rel_sampler will recalculate the texture coords.*/
+	const char *rel_sampler =
+	    " vec4 rel_sampler(sampler2D tex_image, vec2 tex, vec4 wh, int repeat, int set_alpha)\n"
+	    "{\n"
+	    "	tex = rel_tex_coord(tex, wh, repeat - RepeatFix);\n"
+	    "   if (repeat == RepeatFix) {\n"
+	    "		if (!(tex.x >= 0.0 && tex.x < 1.0 \n"
+	    "		    && tex.y >= 0.0 && tex.y < 1.0))\n"
+	    "			return vec4(0.0, 0.0, 0.0, set_alpha);\n"
+	    "		tex = (fract(tex) / wh.xy);\n"
+	    "	}\n"
+	    "	if (set_alpha != 1)\n"
+	    "		return texture2D(tex_image, tex);\n"
+	    "	else\n"
+	    "		return vec4(texture2D(tex_image, tex).rgb, 1.0);\n"
+	    "}\n";
+
+	const char *source_solid_fetch =
+	    GLAMOR_DEFAULT_PRECISION
+	    "uniform vec4 source;\n"
+	    "vec4 get_source()\n" "{\n" "	return source;\n" "}\n";
+	const char *source_alpha_pixmap_fetch =
+	    GLAMOR_DEFAULT_PRECISION
+	    "varying vec2 source_texture;\n"
+	    "uniform sampler2D source_sampler;\n"
+	    "uniform vec4 source_wh;"
+	    "vec4 get_source()\n"
+	    "{\n"
+	    "   if (source_repeat_mode < RepeatFix)\n"
+	    "		return texture2D(source_sampler, source_texture);\n"
+	    "   else \n"
+	    "		return rel_sampler(source_sampler, source_texture,\n"
+	    "				   source_wh, source_repeat_mode, 0);\n"
+	    "}\n";
+	const char *source_pixmap_fetch =
+	    GLAMOR_DEFAULT_PRECISION "varying vec2 source_texture;\n"
+	    "uniform sampler2D source_sampler;\n"
+	    "uniform vec4 source_wh;\n"
+	    "vec4 get_source()\n"
+	    "{\n"
+	    "   if (source_repeat_mode < RepeatFix) \n"
+	    "		return vec4(texture2D(source_sampler, source_texture).rgb, 1);\n"
+	    "	else \n"
+	    "		return rel_sampler(source_sampler, source_texture,\n"
+	    "				   source_wh, source_repeat_mode, 1);\n"
+	    "}\n";
+	const char *mask_solid_fetch =
+	    GLAMOR_DEFAULT_PRECISION "uniform vec4 mask;\n"
+	    "vec4 get_mask()\n" "{\n" "	return mask;\n" "}\n";
+	const char *mask_alpha_pixmap_fetch =
+	    GLAMOR_DEFAULT_PRECISION "varying vec2 mask_texture;\n"
+	    "uniform sampler2D mask_sampler;\n"
+	    "uniform vec4 mask_wh;\n"
+	    "vec4 get_mask()\n"
+	    "{\n"
+	    "   if (mask_repeat_mode < RepeatFix) \n"
+	    "		return texture2D(mask_sampler, mask_texture);\n"
+	    "   else \n"
+	    "		return rel_sampler(mask_sampler, mask_texture,\n"
+	    "				   mask_wh, mask_repeat_mode, 0);\n"
+	    "}\n";
+	const char *mask_pixmap_fetch =
+	    GLAMOR_DEFAULT_PRECISION "varying vec2 mask_texture;\n"
+	    "uniform sampler2D mask_sampler;\n"
+	    "uniform vec4 mask_wh;\n"
+	    "vec4 get_mask()\n"
+	    "{\n"
+	    "   if (mask_repeat_mode < RepeatFix) \n"
+	    "   	return vec4(texture2D(mask_sampler, mask_texture).rgb, 1);\n"
+	    "   else \n"
+	    "		return rel_sampler(mask_sampler, mask_texture,\n"
+	    "				   mask_wh, mask_repeat_mode, 1);\n"
+	    "}\n";
+	const char *in_source_only =
+	    GLAMOR_DEFAULT_PRECISION "void main()\n" "{\n"
+	    "	gl_FragColor = get_source();\n" "}\n";
+	const char *in_normal =
+	    GLAMOR_DEFAULT_PRECISION "void main()\n" "{\n"
+	    "	gl_FragColor = get_source() * get_mask().a;\n" "}\n";
+	const char *in_ca_source =
+	    GLAMOR_DEFAULT_PRECISION "void main()\n" "{\n"
+	    "	gl_FragColor = get_source() * get_mask();\n" "}\n";
+	const char *in_ca_alpha =
+	    GLAMOR_DEFAULT_PRECISION "void main()\n" "{\n"
+	    "	gl_FragColor = get_source().a * get_mask();\n" "}\n";
+	char *source;
+	const char *source_fetch;
+	const char *mask_fetch = "";
+	const char *in;
+	GLuint prog;
+
+	switch (key->source) {
+	case SHADER_SOURCE_SOLID:
+		source_fetch = source_solid_fetch;
+		break;
+	case SHADER_SOURCE_TEXTURE_ALPHA:
+		source_fetch = source_alpha_pixmap_fetch;
+		break;
+	case SHADER_SOURCE_TEXTURE:
+		source_fetch = source_pixmap_fetch;
+		break;
+	default:
+		FatalError("Bad composite shader source");
+	}
+
+	switch (key->mask) {
+	case SHADER_MASK_NONE:
+		break;
+	case SHADER_MASK_SOLID:
+		mask_fetch = mask_solid_fetch;
+		break;
+	case SHADER_MASK_TEXTURE_ALPHA:
+		mask_fetch = mask_alpha_pixmap_fetch;
+		break;
+	case SHADER_MASK_TEXTURE:
+		mask_fetch = mask_pixmap_fetch;
+		break;
+	default:
+		FatalError("Bad composite shader mask");
+	}
+
+	switch (key->in) {
+	case SHADER_IN_SOURCE_ONLY:
+		in = in_source_only;
+		break;
+	case SHADER_IN_NORMAL:
+		in = in_normal;
+		break;
+	case SHADER_IN_CA_SOURCE:
+		in = in_ca_source;
+		break;
+	case SHADER_IN_CA_ALPHA:
+		in = in_ca_alpha;
+		break;
+	default:
+		FatalError("Bad composite IN type");
+	}
+
+	XNFasprintf(&source, "%s%s%s%s%s%s", repeat_define, relocate_texture, rel_sampler,source_fetch, mask_fetch, in);
+
+
+	prog = glamor_compile_glsl_prog(dispatch, GL_FRAGMENT_SHADER,
+					source);
+	free(source);
+
+	return prog;
+}
+
+static GLuint
+glamor_create_composite_vs(glamor_gl_dispatch * dispatch,
+			   struct shader_key *key)
+{
+	const char *main_opening =
+	    "attribute vec4 v_position;\n"
+	    "attribute vec4 v_texcoord0;\n"
+	    "attribute vec4 v_texcoord1;\n"
+	    "varying vec2 source_texture;\n"
+	    "varying vec2 mask_texture;\n"
+	    "void main()\n" "{\n" "	gl_Position = v_position;\n";
+	const char *source_coords =
+	    "	source_texture = v_texcoord0.xy;\n";
+	const char *mask_coords = "	mask_texture = v_texcoord1.xy;\n";
+	const char *main_closing = "}\n";
+	const char *source_coords_setup = "";
+	const char *mask_coords_setup = "";
+	char *source;
+	GLuint prog;
+
+	if (key->source != SHADER_SOURCE_SOLID)
+		source_coords_setup = source_coords;
+
+	if (key->mask != SHADER_MASK_NONE
+	    && key->mask != SHADER_MASK_SOLID)
+		mask_coords_setup = mask_coords;
+
+	XNFasprintf(&source,
+		    "%s%s%s%s",
+		    main_opening,
+		    source_coords_setup, mask_coords_setup, main_closing);
+
+	prog =
+	    glamor_compile_glsl_prog(dispatch, GL_VERTEX_SHADER, source);
+	free(source);
+
+	return prog;
+}
+
+static void
+glamor_create_composite_shader(ScreenPtr screen, struct shader_key *key,
+			       glamor_composite_shader * shader)
+{
+	GLuint vs, fs, prog;
+	GLint source_sampler_uniform_location,
+	    mask_sampler_uniform_location;
+	glamor_screen_private *glamor_priv = glamor_get_screen_private(screen);
+	glamor_gl_dispatch *dispatch;
+
+	dispatch = glamor_get_dispatch(glamor_priv);
+	vs = glamor_create_composite_vs(dispatch, key);
+	if (vs == 0)
+		goto out;
+	fs = glamor_create_composite_fs(dispatch, key);
+	if (fs == 0)
+		goto out;
+
+	prog = dispatch->glCreateProgram();
+	dispatch->glAttachShader(prog, vs);
+	dispatch->glAttachShader(prog, fs);
+
+	dispatch->glBindAttribLocation(prog, GLAMOR_VERTEX_POS,
+				       "v_position");
+	dispatch->glBindAttribLocation(prog, GLAMOR_VERTEX_SOURCE,
+				       "v_texcoord0");
+	dispatch->glBindAttribLocation(prog, GLAMOR_VERTEX_MASK,
+				       "v_texcoord1");
+
+	glamor_link_glsl_prog(dispatch, prog);
+
+	shader->prog = prog;
+
+	dispatch->glUseProgram(prog);
+
+	if (key->source == SHADER_SOURCE_SOLID) {
+		shader->source_uniform_location =
+		    dispatch->glGetUniformLocation(prog, "source");
+	} else {
+		source_sampler_uniform_location =
+		    dispatch->glGetUniformLocation(prog, "source_sampler");
+		dispatch->glUniform1i(source_sampler_uniform_location, 0);
+		shader->source_wh = dispatch->glGetUniformLocation(prog, "source_wh");
+		shader->source_repeat_mode = dispatch->glGetUniformLocation(prog, "source_repeat_mode");
+	}
+
+	if (key->mask != SHADER_MASK_NONE) {
+		if (key->mask == SHADER_MASK_SOLID) {
+			shader->mask_uniform_location =
+			    dispatch->glGetUniformLocation(prog, "mask");
+		} else {
+			mask_sampler_uniform_location =
+			    dispatch->glGetUniformLocation(prog,
+							   "mask_sampler");
+			dispatch->glUniform1i
+			    (mask_sampler_uniform_location, 1);
+			shader->mask_wh = dispatch->glGetUniformLocation(prog, "mask_wh");
+			shader->mask_repeat_mode = dispatch->glGetUniformLocation(prog, "mask_repeat_mode");
+		}
+	}
+
+out:
+	glamor_put_dispatch(glamor_priv);
+}
+
+static glamor_composite_shader *
+glamor_lookup_composite_shader(ScreenPtr screen, struct
+			       shader_key
+			       *key)
+{
+	glamor_screen_private *glamor_priv =
+	    glamor_get_screen_private(screen);
+	glamor_composite_shader *shader;
+
+	shader =
+	    &glamor_priv->composite_shader[key->source][key->
+							mask][key->in];
+	if (shader->prog == 0)
+		glamor_create_composite_shader(screen, key, shader);
+
+	return shader;
+}
+
+static void
+glamor_init_eb(unsigned short *eb, int vert_cnt)
+{
+	int i, j;
+	for(i = 0, j = 0; j < vert_cnt; i += 6, j += 4)
+	{
+		eb[i] = j;
+		eb[i + 1] = j + 1;
+		eb[i + 2] = j + 2;
+		eb[i + 3] = j;
+		eb[i + 4] = j + 2;
+		eb[i + 5] = j + 3;
+	}
+}
+
+void
+glamor_init_composite_shaders(ScreenPtr screen)
+{
+	glamor_screen_private *glamor_priv;
+	glamor_gl_dispatch *dispatch;
+	unsigned short *eb;
+	float *vb = NULL;
+	int eb_size;
+
+	glamor_priv = glamor_get_screen_private(screen);
+	dispatch = glamor_get_dispatch(glamor_priv);
+	dispatch->glGenBuffers(1, &glamor_priv->vbo);
+	dispatch->glGenBuffers(1, &glamor_priv->ebo);
+	dispatch->glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, glamor_priv->ebo);
+
+	eb_size = GLAMOR_COMPOSITE_VBO_VERT_CNT * sizeof(short) * 2;
+
+	if (glamor_priv->gl_flavor == GLAMOR_GL_DESKTOP) {
+		dispatch->glBufferData(GL_ELEMENT_ARRAY_BUFFER,
+				       eb_size,
+				       NULL, GL_STATIC_DRAW);
+		eb = dispatch->glMapBuffer(GL_ELEMENT_ARRAY_BUFFER, GL_WRITE_ONLY);
+	}
+	else {
+		vb = malloc(GLAMOR_COMPOSITE_VBO_VERT_CNT * sizeof(float) * 2);
+		if (vb == NULL)
+			FatalError("Failed to allocate vb memory.\n");
+		eb = malloc(eb_size);
+	}
+
+	if (eb == NULL)
+		FatalError("fatal error, fail to get element buffer. GL context may be not created correctly.\n");
+	glamor_init_eb(eb, GLAMOR_COMPOSITE_VBO_VERT_CNT);
+
+	if (glamor_priv->gl_flavor == GLAMOR_GL_DESKTOP) {
+		dispatch->glUnmapBuffer(GL_ELEMENT_ARRAY_BUFFER);
+		dispatch->glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
+	} else {
+		dispatch->glBufferData(GL_ELEMENT_ARRAY_BUFFER,
+				       eb_size,
+				       eb, GL_STATIC_DRAW);
+		dispatch->glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
+
+		dispatch->glBindBuffer(GL_ARRAY_BUFFER, glamor_priv->vbo);
+		dispatch->glBufferData(GL_ARRAY_BUFFER,
+				       GLAMOR_COMPOSITE_VBO_VERT_CNT * sizeof(float) * 2,
+				       NULL, GL_DYNAMIC_DRAW);
+		dispatch->glBindBuffer(GL_ARRAY_BUFFER, 0);
+
+		free(eb);
+		glamor_priv->vb = (char*)vb;
+	}
+
+	glamor_put_dispatch(glamor_priv);
+}
+
+void
+glamor_fini_composite_shaders(ScreenPtr screen)
+{
+	glamor_screen_private *glamor_priv;
+	glamor_gl_dispatch *dispatch;
+	glamor_composite_shader *shader;
+	int i,j,k;
+
+	glamor_priv = glamor_get_screen_private(screen);
+	dispatch = glamor_get_dispatch(glamor_priv);
+	dispatch->glDeleteBuffers(1, &glamor_priv->vbo);
+	dispatch->glDeleteBuffers(1, &glamor_priv->ebo);
+
+	for(i = 0; i < SHADER_SOURCE_COUNT; i++)
+		for(j = 0; j < SHADER_MASK_COUNT; j++)
+			for(k = 0; k < SHADER_IN_COUNT; k++)
+			{
+				shader = &glamor_priv->composite_shader[i][j][k];
+				if (shader->prog)
+					dispatch->glDeleteProgram(shader->prog);
+			}
+	if (glamor_priv->gl_flavor != GLAMOR_GL_DESKTOP
+	    && glamor_priv->vb)
+		free(glamor_priv->vb);
+
+	glamor_put_dispatch(glamor_priv);
+}
+
+static Bool
+glamor_set_composite_op(ScreenPtr screen,
+			CARD8 op, struct blendinfo *op_info_result,
+			PicturePtr dest, PicturePtr mask)
+{
+	GLenum source_blend, dest_blend;
+	struct blendinfo *op_info;
+
+	if (op >= ARRAY_SIZE(composite_op_info)) {
+		glamor_fallback("unsupported render op %d \n", op);
+		return GL_FALSE;
+	}
+	op_info = &composite_op_info[op];
+
+	source_blend = op_info->source_blend;
+	dest_blend = op_info->dest_blend;
+
+	/* If there's no dst alpha channel, adjust the blend op so that we'll treat
+	 * it as always 1.
+	 */
+	if (PICT_FORMAT_A(dest->format) == 0 && op_info->dest_alpha) {
+		if (source_blend == GL_DST_ALPHA)
+			source_blend = GL_ONE;
+		else if (source_blend == GL_ONE_MINUS_DST_ALPHA)
+			source_blend = GL_ZERO;
+	}
+
+	/* Set up the source alpha value for blending in component alpha mode. */
+	if (mask && mask->componentAlpha
+	    && PICT_FORMAT_RGB(mask->format) != 0 && op_info->source_alpha)
+	{
+		if (dest_blend == GL_SRC_ALPHA)
+			dest_blend = GL_SRC_COLOR;
+		else if (dest_blend == GL_ONE_MINUS_SRC_ALPHA)
+			dest_blend = GL_ONE_MINUS_SRC_COLOR;
+	}
+
+	op_info_result->source_blend = source_blend;
+	op_info_result->dest_blend = dest_blend;
+	op_info_result->source_alpha = op_info->source_alpha;
+	op_info_result->dest_alpha = op_info->dest_alpha;
+
+	return TRUE;
+}
+
+static void
+glamor_set_composite_texture(glamor_screen_private *glamor_priv, int unit,
+			     PicturePtr picture,
+			     glamor_pixmap_private * pixmap_priv,
+			     GLuint wh_location, GLuint repeat_location)
+{
+	glamor_gl_dispatch *dispatch;
+	float wh[4];
+	int repeat_type;
+
+	dispatch = glamor_get_dispatch(glamor_priv);
+	dispatch->glActiveTexture(GL_TEXTURE0 + unit);
+	dispatch->glBindTexture(GL_TEXTURE_2D, pixmap_priv->base.fbo->tex);
+	repeat_type = picture->repeatType;
+	switch (picture->repeatType) {
+	case RepeatNone:
+#ifndef GLAMOR_GLES2
+		/* XXX  GLES2 doesn't support GL_CLAMP_TO_BORDER. */
+		dispatch->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S,
+					  GL_CLAMP_TO_BORDER);
+		dispatch->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T,
+					  GL_CLAMP_TO_BORDER);
+#else
+		dispatch->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S,
+					  GL_CLAMP_TO_EDGE);
+		dispatch->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T,
+					  GL_CLAMP_TO_EDGE);
+#endif
+		break;
+	case RepeatNormal:
+		dispatch->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S,
+					  GL_REPEAT);
+		dispatch->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T,
+					  GL_REPEAT);
+		break;
+	case RepeatPad:
+		dispatch->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S,
+					  GL_CLAMP_TO_EDGE);
+		dispatch->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T,
+					  GL_CLAMP_TO_EDGE);
+		break;
+	case RepeatReflect:
+		dispatch->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S,
+					  GL_MIRRORED_REPEAT);
+		dispatch->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T,
+					  GL_MIRRORED_REPEAT);
+		break;
+	}
+
+	switch (picture->filter) {
+	default:
+	case PictFilterFast:
+	case PictFilterNearest:
+		dispatch->glTexParameteri(GL_TEXTURE_2D,
+					  GL_TEXTURE_MIN_FILTER,
+					  GL_NEAREST);
+		dispatch->glTexParameteri(GL_TEXTURE_2D,
+					  GL_TEXTURE_MAG_FILTER,
+					  GL_NEAREST);
+		break;
+	case PictFilterGood:
+	case PictFilterBest:
+	case PictFilterBilinear:
+		dispatch->glTexParameteri(GL_TEXTURE_2D,
+					  GL_TEXTURE_MIN_FILTER,
+					  GL_LINEAR);
+		dispatch->glTexParameteri(GL_TEXTURE_2D,
+					  GL_TEXTURE_MAG_FILTER,
+					  GL_LINEAR);
+		break;
+	}
+#ifndef GLAMOR_GLES2
+	dispatch->glEnable(GL_TEXTURE_2D);
+#endif
+
+	/*
+	 *  GLES2 doesn't support RepeatNone. We need to fix it anyway.
+	 *
+	 **/
+	if (repeat_type != RepeatNone)
+		repeat_type += RepeatFix;
+	else if (glamor_priv->gl_flavor == GLAMOR_GL_ES2
+		 || pixmap_priv->type == GLAMOR_TEXTURE_LARGE) {
+		if (picture->transform
+		   || (GLAMOR_PIXMAP_FBO_NOT_EAXCT_SIZE(pixmap_priv)))
+			repeat_type += RepeatFix;
+	}
+	if (repeat_type >= RepeatFix) {
+		glamor_pixmap_fbo_fix_wh_ratio(wh, pixmap_priv);
+		if ((wh[0] != 1.0 || wh[1] != 1.0 )
+		     || (glamor_priv->gl_flavor == GLAMOR_GL_ES2
+			  && repeat_type == RepeatFix))
+			dispatch->glUniform4fv(wh_location, 1, wh);
+		else
+			repeat_type -= RepeatFix;
+	}
+	dispatch->glUniform1i(repeat_location, repeat_type);
+	glamor_put_dispatch(glamor_priv);
+}
+
+static void
+glamor_set_composite_solid(glamor_gl_dispatch * dispatch, float *color,
+			   GLint uniform_location)
+{
+	dispatch->glUniform4fv(uniform_location, 1, color);
+}
+
+static int
+compatible_formats(CARD8 op, PicturePtr dst, PicturePtr src)
+{
+	if (op == PictOpSrc) {
+		if (src->format == dst->format)
+			return 1;
+
+		if (src->format == PICT_a8r8g8b8
+		    && dst->format == PICT_x8r8g8b8)
+			return 1;
+
+		if (src->format == PICT_a8b8g8r8
+		    && dst->format == PICT_x8b8g8r8)
+			return 1;
+	} else if (op == PictOpOver) {
+		if (src->alphaMap || dst->alphaMap)
+			return 0;
+
+		if (src->format != dst->format)
+			return 0;
+
+		if (src->format == PICT_x8r8g8b8
+		    || src->format == PICT_x8b8g8r8)
+			return 1;
+	}
+
+	return 0;
+}
+
+static char
+glamor_get_picture_location(PicturePtr picture)
+{
+	if (picture == NULL)
+		return ' ';
+
+	if (picture->pDrawable == NULL) {
+		switch (picture->pSourcePict->type) {
+		case SourcePictTypeSolidFill:
+			return 'c';
+		case SourcePictTypeLinear:
+			return 'l';
+		case SourcePictTypeRadial:
+			return 'r';
+		default:
+			return '?';
+		}
+	}
+	return glamor_get_drawable_location(picture->pDrawable);
+}
+
+static Bool
+glamor_composite_with_copy(CARD8 op,
+			   PicturePtr source,
+			   PicturePtr dest,
+			   INT16 x_source,
+			   INT16 y_source,
+			   INT16 x_dest,
+			   INT16 y_dest,
+			   RegionPtr region)
+{
+	int ret = FALSE;
+	if (!source->pDrawable)
+		return FALSE;
+
+	if (!compatible_formats(op, dest, source))
+		return FALSE;
+
+	if (source->repeat || source->transform) {
+		return FALSE;
+	}
+
+	x_dest += dest->pDrawable->x;
+	y_dest += dest->pDrawable->y;
+	x_source += source->pDrawable->x;
+	y_source += source->pDrawable->y;
+	if (PICT_FORMAT_A(source->format) == 0) {
+		/* Fallback if we sample outside the source so that we
+		 * swizzle the correct clear color for out-of-bounds texels.
+		 */
+		if (region->extents.x1 + x_source - x_dest < 0)
+			goto cleanup_region;
+		if (region->extents.x2 + x_source - x_dest > source->pDrawable->width)
+			goto cleanup_region;
+
+		if (region->extents.y1 + y_source - y_dest < 0)
+			goto cleanup_region;
+		if (region->extents.y2 + y_source - y_dest > source->pDrawable->height)
+			goto cleanup_region;
+	}
+	ret = glamor_copy_n_to_n_nf(source->pDrawable,
+				    dest->pDrawable, NULL,
+				    RegionRects(region), RegionNumRects(region),
+				    x_source - x_dest, y_source - y_dest,
+				    FALSE, FALSE, 0, NULL);
+cleanup_region:
+	return ret;
+}
+
+void
+glamor_setup_composite_vbo(ScreenPtr screen, int n_verts)
+{
+	glamor_screen_private *glamor_priv =
+	    glamor_get_screen_private(screen);
+	glamor_gl_dispatch *dispatch;
+	int vert_size;
+
+	glamor_priv->render_nr_verts = 0;
+	glamor_priv->vb_stride = 2 * sizeof(float);
+	if (glamor_priv->has_source_coords)
+		glamor_priv->vb_stride += 2 * sizeof(float);
+	if (glamor_priv->has_mask_coords)
+		glamor_priv->vb_stride += 2 * sizeof(float);
+
+	vert_size = n_verts * glamor_priv->vb_stride;
+
+	dispatch = glamor_get_dispatch(glamor_priv);
+	dispatch->glBindBuffer(GL_ARRAY_BUFFER, glamor_priv->vbo);
+	if (glamor_priv->gl_flavor == GLAMOR_GL_DESKTOP) {
+		if (glamor_priv->vbo_size < (glamor_priv->vbo_offset + vert_size)) {
+			glamor_priv->vbo_size = GLAMOR_COMPOSITE_VBO_VERT_CNT *
+				glamor_priv->vb_stride;
+			glamor_priv->vbo_offset = 0;
+			dispatch->glBufferData(GL_ARRAY_BUFFER,
+					       glamor_priv->vbo_size,
+					       NULL, GL_STREAM_DRAW);
+		}
+
+		glamor_priv->vb = dispatch->glMapBufferRange(GL_ARRAY_BUFFER,
+							     glamor_priv->vbo_offset,
+							     vert_size,
+							     GL_MAP_WRITE_BIT | GL_MAP_UNSYNCHRONIZED_BIT);
+		assert(glamor_priv->vb != NULL);
+		glamor_priv->vb -= glamor_priv->vbo_offset;
+	} else
+		glamor_priv->vbo_offset = 0;
+
+	dispatch->glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, glamor_priv->ebo);
+
+	dispatch->glVertexAttribPointer(GLAMOR_VERTEX_POS, 2, GL_FLOAT,
+					GL_FALSE, glamor_priv->vb_stride,
+					(void *) ((long)
+						  glamor_priv->vbo_offset));
+	dispatch->glEnableVertexAttribArray(GLAMOR_VERTEX_POS);
+
+	if (glamor_priv->has_source_coords) {
+		dispatch->glVertexAttribPointer(GLAMOR_VERTEX_SOURCE, 2,
+						GL_FLOAT, GL_FALSE,
+						glamor_priv->vb_stride,
+						(void *) ((long)
+							  glamor_priv->vbo_offset
+							  +
+							  2 *
+							  sizeof(float)));
+		dispatch->glEnableVertexAttribArray(GLAMOR_VERTEX_SOURCE);
+	}
+
+	if (glamor_priv->has_mask_coords) {
+		dispatch->glVertexAttribPointer(GLAMOR_VERTEX_MASK, 2,
+						GL_FLOAT, GL_FALSE,
+						glamor_priv->vb_stride,
+						(void *) ((long)
+							  glamor_priv->vbo_offset
+							  +
+							  (glamor_priv->has_source_coords
+							   ? 4 : 2) *
+							  sizeof(float)));
+		dispatch->glEnableVertexAttribArray(GLAMOR_VERTEX_MASK);
+	}
+	glamor_put_dispatch(glamor_priv);
+}
+
+void
+glamor_emit_composite_vert(ScreenPtr screen,
+			   const float *src_coords,
+			   const float *mask_coords,
+			   const float *dst_coords, int i)
+{
+	glamor_screen_private *glamor_priv =
+	    glamor_get_screen_private(screen);
+	float *vb = (float *) (glamor_priv->vb + glamor_priv->vbo_offset);
+	int j = 0;
+
+	vb[j++] = dst_coords[i * 2 + 0];
+	vb[j++] = dst_coords[i * 2 + 1];
+	if (glamor_priv->has_source_coords) {
+		vb[j++] = src_coords[i * 2 + 0];
+		vb[j++] = src_coords[i * 2 + 1];
+	}
+	if (glamor_priv->has_mask_coords) {
+		vb[j++] = mask_coords[i * 2 + 0];
+		vb[j++] = mask_coords[i * 2 + 1];
+	}
+
+	glamor_priv->render_nr_verts++;
+	glamor_priv->vbo_offset += glamor_priv->vb_stride;
+}
+
+
+
+static void
+glamor_flush_composite_rects(ScreenPtr screen)
+{
+	glamor_screen_private *glamor_priv =
+	    glamor_get_screen_private(screen);
+	glamor_gl_dispatch *dispatch;
+
+	dispatch = glamor_get_dispatch(glamor_priv);
+	if (glamor_priv->gl_flavor == GLAMOR_GL_DESKTOP)
+		dispatch->glUnmapBuffer(GL_ARRAY_BUFFER);
+	else {
+
+		dispatch->glBindBuffer(GL_ARRAY_BUFFER, glamor_priv->vbo);
+		dispatch->glBufferData(GL_ARRAY_BUFFER,
+				       glamor_priv->vbo_offset,
+				       glamor_priv->vb, GL_DYNAMIC_DRAW);
+	}
+
+	if (!glamor_priv->render_nr_verts)
+		return;
+
+#ifndef GLAMOR_GLES2
+	dispatch->glDrawRangeElements(GL_TRIANGLES, 0, glamor_priv->render_nr_verts,
+				      (glamor_priv->render_nr_verts * 3) / 2,
+				      GL_UNSIGNED_SHORT, NULL);
+#else
+	dispatch->glDrawElements(GL_TRIANGLES, (glamor_priv->render_nr_verts * 3) / 2,
+				 GL_UNSIGNED_SHORT, NULL);
+#endif
+	glamor_put_dispatch(glamor_priv);
+}
+
+int pict_format_combine_tab[][3] = {
+	{PICT_TYPE_ARGB, PICT_TYPE_A, PICT_TYPE_ARGB},
+	{PICT_TYPE_ABGR, PICT_TYPE_A, PICT_TYPE_ABGR},
+};
+
+static Bool
+combine_pict_format(PictFormatShort * des, const PictFormatShort src,
+		    const PictFormatShort mask, enum shader_in in_ca)
+{
+	PictFormatShort new_vis;
+	int src_type, mask_type, src_bpp, mask_bpp;
+	int i;
+	if (src == mask) {
+		*des = src;
+		return TRUE;
+	}
+	src_bpp = PICT_FORMAT_BPP(src);
+	mask_bpp = PICT_FORMAT_BPP(mask);
+
+	assert(src_bpp == mask_bpp);
+
+	new_vis = PICT_FORMAT_VIS(src) | PICT_FORMAT_VIS(mask);
+
+	switch (in_ca) {
+	case SHADER_IN_SOURCE_ONLY:
+		return TRUE;
+	case SHADER_IN_NORMAL:
+		src_type = PICT_FORMAT_TYPE(src);
+		mask_type = PICT_TYPE_A;
+		break;
+	case SHADER_IN_CA_SOURCE:
+		src_type = PICT_FORMAT_TYPE(src);
+		mask_type = PICT_FORMAT_TYPE(mask);
+		break;
+	case SHADER_IN_CA_ALPHA:
+		src_type = PICT_TYPE_A;
+		mask_type = PICT_FORMAT_TYPE(mask);
+		break;
+	default:
+		return FALSE;
+	}
+
+	if (src_type == mask_type) {
+		*des = PICT_VISFORMAT(src_bpp, src_type, new_vis);
+		return TRUE;
+	}
+
+	for (i = 0;
+	     i <
+	     sizeof(pict_format_combine_tab) /
+	     sizeof(pict_format_combine_tab[0]); i++) {
+		if ((src_type == pict_format_combine_tab[i][0]
+		     && mask_type == pict_format_combine_tab[i][1])
+		    || (src_type == pict_format_combine_tab[i][1]
+			&& mask_type == pict_format_combine_tab[i][0])) {
+			*des = PICT_VISFORMAT(src_bpp,
+					      pict_format_combine_tab[i]
+					      [2], new_vis);
+			return TRUE;
+		}
+	}
+	return FALSE;
+}
+
+static void
+glamor_set_normalize_tcoords_generic(glamor_pixmap_private *priv,
+				     int repeat_type,
+				     float *matrix,
+				     float xscale, float yscale,
+				     int x1, int y1, int x2, int y2,
+				     int yInverted, float *texcoords,
+				     int stride)
+{
+	if (!matrix && repeat_type == RepeatNone)
+		glamor_set_normalize_tcoords_ext(priv, xscale, yscale,
+					     x1, y1,
+					     x2, y2,
+					     yInverted,
+					     texcoords, stride);
+	else if (matrix && repeat_type == RepeatNone)
+		glamor_set_transformed_normalize_tcoords_ext(priv, matrix, xscale,
+							 yscale, x1, y1,
+							 x2, y2,
+							 yInverted,
+							 texcoords, stride);
+	else if (!matrix && repeat_type != RepeatNone)
+		glamor_set_repeat_normalize_tcoords_ext(priv, repeat_type,
+						    xscale, yscale,
+						    x1, y1,
+						    x2, y2,
+						    yInverted,
+						    texcoords, stride);
+	else if (matrix && repeat_type != RepeatNone)
+		glamor_set_repeat_transformed_normalize_tcoords_ext(priv, repeat_type,
+								matrix, xscale, yscale,
+								x1, y1,
+								x2, y2,
+								yInverted,
+								texcoords, stride);
+}
+
+Bool glamor_composite_choose_shader(CARD8 op,
+                                    PicturePtr source,
+                                    PicturePtr mask,
+                                    PicturePtr dest,
+			     	    glamor_pixmap_private *source_pixmap_priv,
+			     	    glamor_pixmap_private *mask_pixmap_priv,
+			     	    glamor_pixmap_private *dest_pixmap_priv,
+                                    struct shader_key *s_key,
+				    glamor_composite_shader **shader,
+				    struct blendinfo *op_info,
+                                    PictFormatShort *psaved_source_format)
+{
+	ScreenPtr screen = dest->pDrawable->pScreen;
+	PixmapPtr dest_pixmap = dest_pixmap_priv->base.pixmap;
+	PixmapPtr source_pixmap = NULL;
+	PixmapPtr mask_pixmap = NULL;
+	enum glamor_pixmap_status source_status = GLAMOR_NONE;
+	enum glamor_pixmap_status mask_status = GLAMOR_NONE;
+	PictFormatShort saved_source_format = 0;
+	struct shader_key key;
+	GLfloat source_solid_color[4];
+	GLfloat mask_solid_color[4];
+	Bool ret = FALSE;
+
+	if (!GLAMOR_PIXMAP_PRIV_HAS_FBO(dest_pixmap_priv)) {
+		glamor_fallback("dest has no fbo.\n");
+		goto fail;
+	}
+
+	memset(&key, 0, sizeof(key));
+	if (!source) {
+		key.source = SHADER_SOURCE_SOLID;
+		source_solid_color[0] = 0.0;
+		source_solid_color[1] = 0.0;
+		source_solid_color[2] = 0.0;
+		source_solid_color[3] = 0.0;
+	} else if (!source->pDrawable) {
+			if (source->pSourcePict->type == SourcePictTypeSolidFill) {
+				key.source = SHADER_SOURCE_SOLID;
+				glamor_get_rgba_from_pixel(source->
+							   pSourcePict->solidFill.
+							   color,
+							   &source_solid_color[0],
+							   &source_solid_color[1],
+							   &source_solid_color[2],
+							   &source_solid_color[3],
+							   PICT_a8r8g8b8);
+		} else
+			goto fail;
+	} else {
+		key.source = SHADER_SOURCE_TEXTURE_ALPHA;
+	}
+
+	if (mask) {
+		if (!mask->pDrawable) {
+			if (mask->pSourcePict->type ==
+			     SourcePictTypeSolidFill) {
+				key.mask = SHADER_MASK_SOLID;
+				glamor_get_rgba_from_pixel
+				    (mask->pSourcePict->solidFill.color,
+				     &mask_solid_color[0],
+				     &mask_solid_color[1],
+				     &mask_solid_color[2],
+				     &mask_solid_color[3], PICT_a8r8g8b8);
+			} else
+				goto fail;
+		} else {
+			key.mask = SHADER_MASK_TEXTURE_ALPHA;
+		}
+
+		if (!mask->componentAlpha) {
+			key.in = SHADER_IN_NORMAL;
+		} else {
+			if (op == PictOpClear)
+				key.mask = SHADER_MASK_NONE;
+			else if (op == PictOpSrc || op == PictOpAdd
+			         || op == PictOpIn || op == PictOpOut
+			         || op == PictOpOverReverse)
+				key.in = SHADER_IN_CA_SOURCE;
+			else if (op == PictOpOutReverse || op == PictOpInReverse) {
+				key.in = SHADER_IN_CA_ALPHA;
+			} else {
+				glamor_fallback("Unsupported component alpha op: %d\n", op);
+				goto fail;
+			}
+		}
+	} else {
+		key.mask = SHADER_MASK_NONE;
+		key.in = SHADER_IN_SOURCE_ONLY;
+	}
+
+	if (source && source->alphaMap) {
+		glamor_fallback("source alphaMap\n");
+		goto fail;
+	}
+	if (mask && mask->alphaMap) {
+		glamor_fallback("mask alphaMap\n");
+		goto fail;
+	}
+
+	if (key.source == SHADER_SOURCE_TEXTURE ||
+	    key.source == SHADER_SOURCE_TEXTURE_ALPHA) {
+		source_pixmap = source_pixmap_priv->base.pixmap;
+		if (source_pixmap == dest_pixmap) {
+			/* XXX source and the dest share the same texture.
+			 * Does it need special handle? */
+			glamor_fallback("source == dest\n");
+		}
+		if (source_pixmap_priv->base.gl_fbo == 0) {
+			/* XXX in Xephyr, we may have gl_fbo equal to 1 but gl_tex
+			 * equal to zero when the pixmap is screen pixmap. Then we may
+			 * refer the tex zero directly latter in the composition.
+			 * It seems that it works fine, but it may have potential problem*/
+#ifdef GLAMOR_PIXMAP_DYNAMIC_UPLOAD
+			source_status = GLAMOR_UPLOAD_PENDING;
+#else
+			glamor_fallback("no texture in source\n");
+			goto fail;
+#endif
+		}
+	}
+
+	if (key.mask == SHADER_MASK_TEXTURE ||
+	    key.mask == SHADER_MASK_TEXTURE_ALPHA) {
+		mask_pixmap = mask_pixmap_priv->base.pixmap;
+		if (mask_pixmap == dest_pixmap) {
+			glamor_fallback("mask == dest\n");
+			goto fail;
+		}
+		if (mask_pixmap_priv->base.gl_fbo == 0) {
+#ifdef GLAMOR_PIXMAP_DYNAMIC_UPLOAD
+			mask_status = GLAMOR_UPLOAD_PENDING;
+#else
+			glamor_fallback("no texture in mask\n");
+			goto fail;
+#endif
+		}
+	}
+
+#ifdef GLAMOR_PIXMAP_DYNAMIC_UPLOAD
+	if (source_status == GLAMOR_UPLOAD_PENDING
+	     && mask_status == GLAMOR_UPLOAD_PENDING
+	     && source_pixmap == mask_pixmap) {
+
+		if (source->format != mask->format) {
+			saved_source_format = source->format;
+
+			if (!combine_pict_format(&source->format, source->format,
+			                         mask->format, key.in)) {
+				glamor_fallback("combine source %x mask %x failed.\n",
+				                source->format, mask->format);
+				goto fail;
+			}
+
+			if (source->format != saved_source_format) {
+				glamor_picture_format_fixup(source,
+				        source_pixmap_priv);
+			}
+			/* XXX
+			 * By default, glamor_upload_picture_to_texture will wire alpha to 1
+			 * if one picture doesn't have alpha. So we don't do that again in
+			 * rendering function. But here is a special case, as source and
+			 * mask share the same texture but may have different formats. For
+			 * example, source doesn't have alpha, but mask has alpha. Then the
+			 * texture will have the alpha value for the mask. And will not wire
+			 * to 1 for the source. In this case, we have to use different shader
+			 * to wire the source's alpha to 1.
+			 *
+			 * But this may cause a potential problem if the source's repeat mode
+			 * is REPEAT_NONE, and if the source is smaller than the dest, then
+			 * for the region not covered by the source may be painted incorrectly.
+			 * because we wire the alpha to 1.
+			 *
+			 **/
+			if (!PICT_FORMAT_A(saved_source_format)
+			     && PICT_FORMAT_A(mask->format))
+				key.source = SHADER_SOURCE_TEXTURE;
+
+			if (!PICT_FORMAT_A(mask->format)
+			     && PICT_FORMAT_A(saved_source_format))
+				key.mask = SHADER_MASK_TEXTURE;
+
+			mask_status = GLAMOR_NONE;
+		}
+
+		source_status = glamor_upload_picture_to_texture(source);
+		if (source_status != GLAMOR_UPLOAD_DONE) {
+			glamor_fallback("Failed to upload source texture.\n");
+			goto fail;
+		}
+	} else {
+		if (source_status == GLAMOR_UPLOAD_PENDING) {
+			source_status = glamor_upload_picture_to_texture(source);
+			if (source_status != GLAMOR_UPLOAD_DONE) {
+				glamor_fallback("Failed to upload source texture.\n");
+				goto fail;
+			}
+		}
+
+		if (mask_status == GLAMOR_UPLOAD_PENDING) {
+			mask_status = glamor_upload_picture_to_texture(mask);
+			if (mask_status != GLAMOR_UPLOAD_DONE) {
+				glamor_fallback("Failed to upload mask texture.\n");
+				goto fail;
+			}
+		}
+	}
+#endif
+
+	/*Before enter the rendering stage, we need to fixup
+	 * transformed source and mask, if the transform is not int translate. */
+	if (key.source != SHADER_SOURCE_SOLID
+	    && source->transform
+	    && !pixman_transform_is_int_translate(source->transform)
+	    && source_pixmap_priv->type != GLAMOR_TEXTURE_LARGE) {
+		if (!glamor_fixup_pixmap_priv(screen, source_pixmap_priv))
+			goto fail;
+	}
+	if (key.mask != SHADER_MASK_NONE && key.mask != SHADER_MASK_SOLID
+	    && mask->transform
+	    && !pixman_transform_is_int_translate(mask->transform)
+	    && mask_pixmap_priv->type != GLAMOR_TEXTURE_LARGE) {
+		if (!glamor_fixup_pixmap_priv(screen, mask_pixmap_priv))
+			goto fail;
+	}
+
+
+	if (!glamor_set_composite_op(screen, op, op_info, dest, mask))
+		goto fail;
+
+	*shader = glamor_lookup_composite_shader(screen, &key);
+	if ((*shader)->prog == 0) {
+		glamor_fallback("no shader program for this"
+		                "render acccel mode\n");
+		goto fail;
+	}
+
+	if (key.source == SHADER_SOURCE_SOLID)
+		memcpy(&(*shader)->source_solid_color[0],
+			source_solid_color, 4*sizeof(float));
+	else {
+		(*shader)->source_priv = source_pixmap_priv;
+		(*shader)->source = source;
+	}
+
+	if (key.mask == SHADER_MASK_SOLID)
+		memcpy(&(*shader)->mask_solid_color[0],
+			mask_solid_color, 4*sizeof(float));
+	else {
+		(*shader)->mask_priv = mask_pixmap_priv;
+		(*shader)->mask = mask;
+	}
+
+	ret = TRUE;
+	memcpy(s_key, &key, sizeof(key));
+	*psaved_source_format = saved_source_format;
+	goto done;
+
+fail:
+	if (saved_source_format)
+		source->format = saved_source_format;
+done:
+	return ret;
+}
+
+void
+glamor_composite_set_shader_blend(glamor_pixmap_private *dest_priv,
+				  struct shader_key *key,
+				  glamor_composite_shader *shader,
+				  struct blendinfo *op_info)
+{
+	glamor_gl_dispatch *dispatch;
+	glamor_screen_private *glamor_priv;
+
+	glamor_priv = dest_priv->base.glamor_priv;
+
+	dispatch = glamor_get_dispatch(glamor_priv);
+	dispatch->glUseProgram(shader->prog);
+
+	if (key->source == SHADER_SOURCE_SOLID) {
+		glamor_set_composite_solid(dispatch,
+			shader->source_solid_color,
+		        shader->source_uniform_location);
+	} else {
+		glamor_set_composite_texture(glamor_priv, 0,
+			shader->source,
+		        shader->source_priv, shader->source_wh,
+		        shader->source_repeat_mode);
+	}
+
+	if (key->mask != SHADER_MASK_NONE) {
+		if (key->mask == SHADER_MASK_SOLID) {
+			glamor_set_composite_solid(dispatch,
+			        shader->mask_solid_color,
+			        shader->mask_uniform_location);
+		} else {
+			glamor_set_composite_texture(glamor_priv, 1,
+				shader->mask,
+			        shader->mask_priv, shader->mask_wh,
+			        shader->mask_repeat_mode);
+		}
+	}
+
+	if (op_info->source_blend == GL_ONE
+	    && op_info->dest_blend == GL_ZERO) {
+		dispatch->glDisable(GL_BLEND);
+	} else {
+		dispatch->glEnable(GL_BLEND);
+		dispatch->glBlendFunc(op_info->source_blend,
+				      op_info->dest_blend);
+	}
+
+	glamor_put_dispatch(glamor_priv);
+}
+
+static Bool
+glamor_composite_with_shader(CARD8 op,
+			     PicturePtr source,
+			     PicturePtr mask,
+			     PicturePtr dest,
+			     glamor_pixmap_private *source_pixmap_priv,
+			     glamor_pixmap_private *mask_pixmap_priv,
+			     glamor_pixmap_private *dest_pixmap_priv,
+			     int nrect, glamor_composite_rect_t * rects,
+			     Bool two_pass_ca)
+{
+	ScreenPtr screen = dest->pDrawable->pScreen;
+	glamor_screen_private *glamor_priv = dest_pixmap_priv->base.glamor_priv;
+	PixmapPtr dest_pixmap = dest_pixmap_priv->base.pixmap;
+	PixmapPtr source_pixmap = NULL;
+	PixmapPtr mask_pixmap = NULL;
+	glamor_gl_dispatch *dispatch = NULL;
+	GLfloat dst_xscale, dst_yscale;
+	GLfloat mask_xscale = 1, mask_yscale = 1,
+	        src_xscale = 1, src_yscale = 1;
+	struct shader_key key, key_ca;
+	float *vertices;
+	int dest_x_off, dest_y_off;
+	int source_x_off, source_y_off;
+	int mask_x_off, mask_y_off;
+	PictFormatShort saved_source_format = 0;
+	float src_matrix[9], mask_matrix[9];
+	float *psrc_matrix = NULL, *pmask_matrix = NULL;
+	int vert_stride = 4;
+	int nrect_max;
+	Bool ret = FALSE;
+	glamor_composite_shader *shader = NULL, *shader_ca = NULL;
+	struct blendinfo op_info, op_info_ca;
+
+	if(!glamor_composite_choose_shader(op, source, mask, dest,
+					   source_pixmap_priv, mask_pixmap_priv,
+					   dest_pixmap_priv,
+	                                   &key, &shader, &op_info,
+					   &saved_source_format)) {
+		glamor_fallback("glamor_composite_choose_shader failed\n");
+		return ret;
+	}
+	if (two_pass_ca) {
+		if(!glamor_composite_choose_shader(PictOpAdd, source, mask, dest,
+						   source_pixmap_priv, mask_pixmap_priv,
+						   dest_pixmap_priv,
+						   &key_ca, &shader_ca, &op_info_ca,
+						   &saved_source_format)) {
+			glamor_fallback("glamor_composite_choose_shader failed\n");
+			return ret;
+		}
+	}
+
+	glamor_set_destination_pixmap_priv_nc(dest_pixmap_priv);
+	glamor_composite_set_shader_blend(dest_pixmap_priv, &key, shader, &op_info);
+
+	dispatch = glamor_get_dispatch(glamor_priv);
+
+	glamor_priv->has_source_coords = key.source != SHADER_SOURCE_SOLID;
+	glamor_priv->has_mask_coords = (key.mask != SHADER_MASK_NONE &&
+					key.mask != SHADER_MASK_SOLID);
+
+	dest_pixmap = glamor_get_drawable_pixmap(dest->pDrawable);
+	dest_pixmap_priv = glamor_get_pixmap_private(dest_pixmap);
+	glamor_get_drawable_deltas(dest->pDrawable, dest_pixmap,
+				   &dest_x_off, &dest_y_off);
+	pixmap_priv_get_dest_scale(dest_pixmap_priv, &dst_xscale, &dst_yscale);
+
+	if (glamor_priv->has_source_coords) {
+		source_pixmap = source_pixmap_priv->base.pixmap;
+		glamor_get_drawable_deltas(source->pDrawable,
+					   source_pixmap, &source_x_off,
+					   &source_y_off);
+		pixmap_priv_get_scale(source_pixmap_priv, &src_xscale,
+				      &src_yscale);
+		if (source->transform) {
+			psrc_matrix = src_matrix;
+			glamor_picture_get_matrixf(source, psrc_matrix);
+		}
+		vert_stride += 4;
+	}
+
+	if (glamor_priv->has_mask_coords) {
+		mask_pixmap = mask_pixmap_priv->base.pixmap;
+		glamor_get_drawable_deltas(mask->pDrawable, mask_pixmap,
+					   &mask_x_off, &mask_y_off);
+		pixmap_priv_get_scale(mask_pixmap_priv, &mask_xscale,
+				      &mask_yscale);
+		if (mask->transform) {
+			pmask_matrix = mask_matrix;
+			glamor_picture_get_matrixf(mask, pmask_matrix);
+		}
+		vert_stride += 4;
+	}
+
+	nrect_max = (vert_stride * nrect) > GLAMOR_COMPOSITE_VBO_VERT_CNT ?
+			 (GLAMOR_COMPOSITE_VBO_VERT_CNT / vert_stride) : nrect;
+
+	while(nrect) {
+		int mrect, rect_processed;
+		int vb_stride;
+
+		mrect = nrect > nrect_max ? nrect_max : nrect ;
+		glamor_setup_composite_vbo(screen, mrect * vert_stride);
+		rect_processed = mrect;
+		vb_stride = glamor_priv->vb_stride/sizeof(float);
+		while (mrect--) {
+			INT16 x_source;
+			INT16 y_source;
+			INT16 x_mask;
+			INT16 y_mask;
+			INT16 x_dest;
+			INT16 y_dest;
+			CARD16 width;
+			CARD16 height;
+
+			x_dest = rects->x_dst + dest_x_off;
+			y_dest = rects->y_dst + dest_y_off;
+			x_source = rects->x_src + source_x_off;
+			y_source = rects->y_src + source_y_off;
+			x_mask = rects->x_mask + mask_x_off;
+			y_mask = rects->y_mask + mask_y_off;
+			width = rects->width;
+			height = rects->height;
+
+			DEBUGF("dest(%d,%d) source(%d %d) mask (%d %d), width %d height %d \n",
+				x_dest, y_dest, x_source, y_source,x_mask,y_mask,width,height);
+			vertices = (float*)(glamor_priv->vb + glamor_priv->vbo_offset);
+			assert(glamor_priv->vbo_offset < glamor_priv->vbo_size - glamor_priv->vb_stride);
+			glamor_set_normalize_vcoords_ext(dest_pixmap_priv, dst_xscale,
+						     dst_yscale,
+						     x_dest, y_dest,
+						     x_dest + width, y_dest + height,
+						     glamor_priv->yInverted,
+						     vertices, vb_stride);
+			vertices += 2;
+			if (key.source != SHADER_SOURCE_SOLID) {
+				glamor_set_normalize_tcoords_generic(
+					source_pixmap_priv, source->repeatType, psrc_matrix,
+					src_xscale, src_yscale, x_source, y_source,
+					x_source + width, y_source + height,
+					glamor_priv->yInverted, vertices, vb_stride);
+				vertices += 2;
+			}
+
+			if (key.mask != SHADER_MASK_NONE
+			    && key.mask != SHADER_MASK_SOLID) {
+				glamor_set_normalize_tcoords_generic(
+					mask_pixmap_priv, mask->repeatType, pmask_matrix,
+					mask_xscale, mask_yscale, x_mask, y_mask,
+					x_mask + width, y_mask + height,
+					glamor_priv->yInverted, vertices, vb_stride);
+			}
+			glamor_priv->render_nr_verts += 4;
+			glamor_priv->vbo_offset += glamor_priv->vb_stride * 4;
+			rects++;
+		}
+		glamor_flush_composite_rects(screen);
+		nrect -= rect_processed;
+		if (two_pass_ca) {
+			glamor_composite_set_shader_blend(dest_pixmap_priv,
+							&key_ca, shader_ca,
+							&op_info_ca);
+			glamor_flush_composite_rects(screen);
+			if (nrect)
+				glamor_composite_set_shader_blend(dest_pixmap_priv,
+								&key, shader,
+								&op_info);
+		}
+	}
+
+	dispatch->glBindBuffer(GL_ARRAY_BUFFER, 0);
+	dispatch->glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
+	dispatch->glDisableVertexAttribArray(GLAMOR_VERTEX_POS);
+	dispatch->glDisableVertexAttribArray(GLAMOR_VERTEX_SOURCE);
+	dispatch->glDisableVertexAttribArray(GLAMOR_VERTEX_MASK);
+	dispatch->glDisable(GL_BLEND);
+#ifndef GLAMOR_GLES2
+	dispatch->glActiveTexture(GL_TEXTURE0);
+	dispatch->glDisable(GL_TEXTURE_2D);
+	dispatch->glActiveTexture(GL_TEXTURE1);
+	dispatch->glDisable(GL_TEXTURE_2D);
+#endif
+	DEBUGF("finish rendering.\n");
+	dispatch->glUseProgram(0);
+	glamor_priv->state = RENDER_STATE;
+	glamor_priv->render_idle_cnt = 0;
+	if (saved_source_format)
+		source->format = saved_source_format;
+	glamor_put_dispatch(glamor_priv);
+
+	ret = TRUE;
+	return ret;
+}
+
+PicturePtr
+glamor_convert_gradient_picture(ScreenPtr screen,
+                                PicturePtr source,
+                                int x_source,
+                                int y_source, int width, int height)
+{
+	PixmapPtr pixmap;
+	PicturePtr dst = NULL;
+	int error;
+	PictFormatShort format;
+	if (!source->pDrawable)
+		format = PICT_a8r8g8b8;
+	else
+		format = source->format;
+#ifdef GLAMOR_GRADIENT_SHADER
+	if (!source->pDrawable) {
+		if (source->pSourcePict->type == SourcePictTypeLinear) {
+			dst = glamor_generate_linear_gradient_picture(screen,
+				source, x_source, y_source, width, height, format);
+		} else if (source->pSourcePict->type == SourcePictTypeRadial) {
+			dst = glamor_generate_radial_gradient_picture(screen,
+		                  source, x_source, y_source, width, height, format);
+		}
+
+		if (dst) {
+#if 0			/* Debug to compare it to pixman, Enable it if needed. */
+			glamor_compare_pictures(screen, source,
+					dst, x_source, y_source, width, height,
+					0, 3);
+#endif
+			return dst;
+		}
+	}
+#endif
+	pixmap = glamor_create_pixmap(screen,
+				      width,
+				      height,
+				      PIXMAN_FORMAT_DEPTH(format),
+				      GLAMOR_CREATE_PIXMAP_CPU);
+
+	if (!pixmap)
+		return NULL;
+
+	dst = CreatePicture(0,
+	                    &pixmap->drawable,
+	                    PictureMatchFormat(screen,
+	                                       PIXMAN_FORMAT_DEPTH(format),
+	                                       format),
+	                    0, 0, serverClient, &error);
+	glamor_destroy_pixmap(pixmap);
+	if (!dst)
+		return NULL;
+
+	ValidatePicture(dst);
+
+	fbComposite(PictOpSrc, source, NULL, dst, x_source, y_source,
+	            0, 0, 0, 0, width, height);
+	return dst;
+}
+
+Bool
+glamor_composite_clipped_region(CARD8 op,
+				PicturePtr source,
+				PicturePtr mask,
+				PicturePtr dest,
+				glamor_pixmap_private *source_pixmap_priv,
+				glamor_pixmap_private *mask_pixmap_priv,
+				glamor_pixmap_private *dest_pixmap_priv,
+				RegionPtr region,
+				int x_source,
+				int y_source,
+				int x_mask,
+				int y_mask,
+				int x_dest,
+				int y_dest)
+{
+	ScreenPtr screen = dest->pDrawable->pScreen;
+	PixmapPtr source_pixmap = NULL, mask_pixmap = NULL;
+	PicturePtr temp_src = source, temp_mask = mask;
+	glamor_pixmap_private *temp_src_priv = source_pixmap_priv;
+	glamor_pixmap_private *temp_mask_priv = mask_pixmap_priv;
+	int x_temp_src, y_temp_src, x_temp_mask, y_temp_mask;
+	BoxPtr extent;
+	glamor_composite_rect_t rect[10];
+	glamor_composite_rect_t *prect = rect;
+	int prect_size = ARRAY_SIZE(rect);
+	int ok = FALSE;
+	int i;
+	int width;
+	int height;
+	BoxPtr box;
+	int nbox;
+	Bool two_pass_ca = FALSE;
+
+	extent = RegionExtents(region);
+	box = RegionRects(region);
+	nbox = RegionNumRects(region);
+	width = extent->x2 - extent->x1;
+	height = extent->y2 - extent->y1;
+
+	x_temp_src = x_source;
+	y_temp_src = y_source;
+	x_temp_mask = x_mask;
+	y_temp_mask = y_mask;
+
+	DEBUGF("clipped (%d %d) (%d %d) (%d %d) width %d height %d \n",
+		x_source, y_source, x_mask, y_mask, x_dest, y_dest, width, height);
+
+	if (source_pixmap_priv)
+		source_pixmap = source_pixmap_priv->base.pixmap;
+
+	if (mask_pixmap_priv)
+		mask_pixmap = mask_pixmap_priv->base.pixmap;
+
+	/* XXX is it possible source mask have non-zero drawable.x/y? */
+	if (source
+	    && ((!source->pDrawable
+	     && (source->pSourcePict->type != SourcePictTypeSolidFill))
+	    || (source->pDrawable
+		&& !GLAMOR_PIXMAP_PRIV_HAS_FBO(source_pixmap_priv)
+		&& (source_pixmap->drawable.width != width
+		    || source_pixmap->drawable.height != height)))) {
+		temp_src =
+		    glamor_convert_gradient_picture(screen, source,
+						    extent->x1 + x_source - x_dest,
+						    extent->y1 + y_source - y_dest,
+						    width, height);
+		if (!temp_src) {
+			temp_src = source;
+			goto out;
+		}
+		temp_src_priv = glamor_get_pixmap_private((PixmapPtr)(temp_src->pDrawable));
+		x_temp_src = - extent->x1 + x_dest;
+		y_temp_src = - extent->y1 + y_dest;
+	}
+
+	if (mask
+	    &&
+	    ((!mask->pDrawable
+	      && (mask->pSourcePict->type != SourcePictTypeSolidFill))
+	     || (mask->pDrawable
+		 && !GLAMOR_PIXMAP_PRIV_HAS_FBO(mask_pixmap_priv)
+		 && (mask_pixmap->drawable.width != width
+		    || mask_pixmap->drawable.height != height)))) {
+		/* XXX if mask->pDrawable is the same as source->pDrawable, we have an opportunity
+		 * to do reduce one convertion. */
+		temp_mask =
+		    glamor_convert_gradient_picture(screen, mask,
+						    extent->x1 + x_mask - x_dest,
+						    extent->y1 + y_mask - y_dest,
+						    width, height);
+		if (!temp_mask) {
+			temp_mask = mask;
+			goto out;
+		}
+		temp_mask_priv = glamor_get_pixmap_private((PixmapPtr)(temp_mask->pDrawable));
+		x_temp_mask = - extent->x1 + x_dest;
+		y_temp_mask = - extent->y1 + y_dest;
+	}
+	/* Do two-pass PictOpOver componentAlpha, until we enable
+	 * dual source color blending.
+	 */
+
+	if (mask && mask->componentAlpha) {
+		if (op == PictOpOver) {
+			two_pass_ca = TRUE;
+			op = PictOpOutReverse;
+		}
+	}
+
+	if (!mask && temp_src) {
+		if (glamor_composite_with_copy(op, temp_src, dest,
+					       x_temp_src, y_temp_src,
+					       x_dest, y_dest, region)) {
+			ok = TRUE;
+			goto out;
+		}
+	}
+
+	/*XXXXX, self copy?*/
+
+	x_dest += dest->pDrawable->x;
+	y_dest += dest->pDrawable->y;
+	if (temp_src && temp_src->pDrawable) {
+		x_temp_src += temp_src->pDrawable->x;
+		y_temp_src += temp_src->pDrawable->y;
+	}
+	if (temp_mask && temp_mask->pDrawable) {
+		x_temp_mask += temp_mask->pDrawable->x;
+		y_temp_mask += temp_mask->pDrawable->y;
+	}
+
+	if (nbox > ARRAY_SIZE(rect)) {
+		prect = calloc(nbox, sizeof(*prect));
+		if (prect)
+			prect_size = nbox;
+		else {
+			prect = rect;
+			prect_size = ARRAY_SIZE(rect);
+		}
+	}
+	while(nbox) {
+		int box_cnt;
+		box_cnt = nbox > prect_size ? prect_size : nbox;
+		for (i = 0; i < box_cnt; i++) {
+			prect[i].x_src = box[i].x1 + x_temp_src - x_dest;
+			prect[i].y_src = box[i].y1 + y_temp_src - y_dest;
+			prect[i].x_mask = box[i].x1 + x_temp_mask - x_dest;
+			prect[i].y_mask = box[i].y1 + y_temp_mask - y_dest;
+			prect[i].x_dst = box[i].x1;
+			prect[i].y_dst = box[i].y1;
+			prect[i].width = box[i].x2 - box[i].x1;
+			prect[i].height = box[i].y2 - box[i].y1;
+			DEBUGF("dest %d %d \n", prect[i].x_dst, prect[i].y_dst);
+		}
+		ok = glamor_composite_with_shader(op, temp_src, temp_mask, dest,
+						  temp_src_priv, temp_mask_priv,
+						  dest_pixmap_priv,
+						  box_cnt, prect, two_pass_ca);
+		if (!ok)
+			break;
+		nbox -= box_cnt;
+		box += box_cnt;
+	}
+
+	if (prect != rect)
+		free(prect);
+out:
+	if (temp_src != source)
+		FreePicture(temp_src, 0);
+	if (temp_mask != mask)
+		FreePicture(temp_mask, 0);
+
+	return ok;
+}
+
+static Bool
+_glamor_composite(CARD8 op,
+		  PicturePtr source,
+		  PicturePtr mask,
+		  PicturePtr dest,
+		  INT16 x_source,
+		  INT16 y_source,
+		  INT16 x_mask,
+		  INT16 y_mask,
+		  INT16 x_dest, INT16 y_dest,
+		  CARD16 width, CARD16 height, Bool fallback)
+{
+	ScreenPtr screen = dest->pDrawable->pScreen;
+	glamor_pixmap_private *dest_pixmap_priv;
+	glamor_pixmap_private *source_pixmap_priv =
+	    NULL, *mask_pixmap_priv = NULL;
+	PixmapPtr dest_pixmap =
+	    glamor_get_drawable_pixmap(dest->pDrawable);
+	PixmapPtr source_pixmap = NULL, mask_pixmap = NULL;
+	glamor_screen_private *glamor_priv =
+	    glamor_get_screen_private(screen);
+	Bool ret = TRUE;
+	RegionRec region;
+	BoxPtr extent;
+	int nbox, ok = FALSE;
+	PixmapPtr sub_dest_pixmap = NULL;
+	PixmapPtr sub_source_pixmap = NULL;
+	PixmapPtr sub_mask_pixmap = NULL;
+	int dest_x_off, dest_y_off, saved_dest_x, saved_dest_y;
+	int source_x_off, source_y_off, saved_source_x, saved_source_y;
+	int mask_x_off, mask_y_off, saved_mask_x, saved_mask_y;
+	DrawablePtr saved_dest_drawable;
+	DrawablePtr saved_source_drawable;
+	DrawablePtr saved_mask_drawable;
+	int force_clip = 0;
+	dest_pixmap_priv = glamor_get_pixmap_private(dest_pixmap);
+
+	if (source->pDrawable) {
+		source_pixmap = glamor_get_drawable_pixmap(source->pDrawable);
+		source_pixmap_priv = glamor_get_pixmap_private(source_pixmap);
+		if (source_pixmap_priv && source_pixmap_priv->type == GLAMOR_DRM_ONLY)
+			goto fail;
+	}
+
+	if (mask && mask->pDrawable) {
+		mask_pixmap = glamor_get_drawable_pixmap(mask->pDrawable);
+		mask_pixmap_priv = glamor_get_pixmap_private(mask_pixmap);
+		if (mask_pixmap_priv && mask_pixmap_priv->type == GLAMOR_DRM_ONLY)
+			goto fail;
+	}
+
+	DEBUGF("source pixmap %p (%d %d) mask(%d %d) dest(%d %d) width %d height %d \n",
+		source_pixmap, x_source, y_source, x_mask, y_mask, x_dest, y_dest, width, height);
+
+	if (!GLAMOR_PIXMAP_PRIV_HAS_FBO(dest_pixmap_priv)) {
+		goto fail;
+	}
+
+	if (op >= ARRAY_SIZE(composite_op_info))
+		goto fail;
+
+	if (mask && mask->componentAlpha) {
+		if (op == PictOpAtop
+		    || op == PictOpAtopReverse
+		    || op == PictOpXor
+		    || op >= PictOpSaturate) {
+			glamor_fallback
+				("glamor_composite(): component alpha op %x\n", op);
+			goto fail;
+		}
+	}
+
+	if ((source && source->filter >= PictFilterConvolution)
+			|| (mask && mask->filter >= PictFilterConvolution)) {
+		glamor_fallback("glamor_composite(): unsupported filter\n");
+		goto fail;
+	}
+
+	if (!miComputeCompositeRegion(&region,
+				      source, mask, dest,
+				      x_source + (source_pixmap ? source->pDrawable->x : 0),
+				      y_source + (source_pixmap ? source->pDrawable->y : 0),
+				      x_mask + (mask_pixmap ? mask->pDrawable->x : 0),
+				      y_mask + (mask_pixmap ? mask->pDrawable->y : 0),
+				      x_dest + dest->pDrawable->x,
+				      y_dest + dest->pDrawable->y,
+				      width,
+				      height)) {
+		ret = TRUE;
+		goto done;
+	}
+
+	nbox = REGION_NUM_RECTS(&region);
+	DEBUGF("first clipped when compositing.\n");
+	DEBUGRegionPrint(&region);
+	extent = RegionExtents(&region);
+	if (nbox == 0) {
+		ret = TRUE;
+		goto done;
+	}
+	/* If destination is not a large pixmap, but the region is larger
+	 * than texture size limitation, and source or mask is memory pixmap,
+	 * then there may be need to load a large memory pixmap to a
+	 * texture, and this is not permitted. Then we force to clip the
+	 * destination and make sure latter will not upload a large memory
+	 * pixmap. */
+	if (!glamor_check_fbo_size(glamor_priv,
+		extent->x2 - extent->x1, extent->y2 - extent->y1)
+	   && (dest_pixmap_priv->type != GLAMOR_TEXTURE_LARGE)
+           && ((source_pixmap_priv
+	        && (source_pixmap_priv->type == GLAMOR_MEMORY || source->repeatType == RepeatPad))
+	     || (mask_pixmap_priv
+		&& (mask_pixmap_priv->type == GLAMOR_MEMORY || mask->repeatType == RepeatPad))
+	     || (!source_pixmap_priv
+		   && (source->pSourcePict->type != SourcePictTypeSolidFill))
+	     || (!mask_pixmap_priv && mask
+		  && mask->pSourcePict->type != SourcePictTypeSolidFill)))
+		force_clip = 1;
+
+	if (force_clip || dest_pixmap_priv->type == GLAMOR_TEXTURE_LARGE
+	    || (source_pixmap_priv
+		&& source_pixmap_priv->type == GLAMOR_TEXTURE_LARGE)
+	    || (mask_pixmap_priv
+		&& mask_pixmap_priv->type == GLAMOR_TEXTURE_LARGE))
+		ok = glamor_composite_largepixmap_region(op,
+						   source, mask, dest,
+						   source_pixmap_priv,
+						   mask_pixmap_priv,
+						   dest_pixmap_priv,
+						   &region, force_clip,
+						   x_source, y_source,
+						   x_mask, y_mask,
+						   x_dest, y_dest,
+						   width, height);
+	else
+		ok = glamor_composite_clipped_region(op, source,
+						     mask, dest,
+						     source_pixmap_priv,
+						     mask_pixmap_priv,
+						     dest_pixmap_priv,
+						     &region,
+						     x_source, y_source,
+						     x_mask, y_mask,
+						     x_dest, y_dest);
+
+	REGION_UNINIT(dest->pDrawable->pScreen, &region);
+
+	if (ok)
+		goto done;
+fail:
+
+	if (!fallback
+	    && glamor_ddx_fallback_check_pixmap(&dest_pixmap->drawable)
+	    && (!source_pixmap
+		|| glamor_ddx_fallback_check_pixmap(&source_pixmap->drawable))
+	    && (!mask_pixmap
+		|| glamor_ddx_fallback_check_pixmap(&mask_pixmap->drawable))) {
+		ret = FALSE;
+		goto done;
+	}
+
+	glamor_fallback
+	    ("from picts %p:%p %dx%d / %p:%p %d x %d (%c,%c)  to pict %p:%p %dx%d (%c)\n",
+	     source, source->pDrawable,
+	     source->pDrawable ? source->pDrawable->width : 0,
+	     source->pDrawable ? source->pDrawable->height : 0, mask,
+	     (!mask) ? NULL : mask->pDrawable, (!mask
+						|| !mask->pDrawable) ? 0 :
+	     mask->pDrawable->width, (!mask
+				      || !mask->
+				      pDrawable) ? 0 : mask->pDrawable->
+	     height, glamor_get_picture_location(source),
+	     glamor_get_picture_location(mask), dest, dest->pDrawable,
+	     dest->pDrawable->width, dest->pDrawable->height,
+	     glamor_get_picture_location(dest));
+
+#define GET_SUB_PICTURE(p, access)		do {					\
+	glamor_get_drawable_deltas(p->pDrawable, p ##_pixmap,				\
+				   & p ##_x_off, & p ##_y_off);				\
+	sub_ ##p ##_pixmap = glamor_get_sub_pixmap(p ##_pixmap,				\
+					      x_ ##p + p ##_x_off + p->pDrawable->x,	\
+					      y_ ##p + p ##_y_off + p->pDrawable->y,	\
+					      width, height, access);			\
+	if (sub_ ##p ##_pixmap != NULL) {						\
+		saved_ ##p ##_drawable = p->pDrawable;					\
+		saved_ ##p ##_x = x_ ##p;						\
+		saved_ ##p ##_y = y_ ##p;						\
+		if (p->pCompositeClip)							\
+			pixman_region_translate (p->pCompositeClip,			\
+						 -p->pDrawable->x - x_ ##p,		\
+						 -p->pDrawable->y - y_ ##p);		\
+		p->pDrawable = &sub_ ##p ##_pixmap->drawable;				\
+		x_ ##p = 0;								\
+		y_ ##p = 0;								\
+	} } while(0)
+	GET_SUB_PICTURE(dest, GLAMOR_ACCESS_RW);
+	if (source->pDrawable && !source->transform)
+		GET_SUB_PICTURE(source, GLAMOR_ACCESS_RO);
+	if (mask && mask->pDrawable && !mask->transform)
+		GET_SUB_PICTURE(mask, GLAMOR_ACCESS_RO);
+
+	if (glamor_prepare_access_picture(dest, GLAMOR_ACCESS_RW)) {
+		if (source_pixmap == dest_pixmap || glamor_prepare_access_picture
+		    (source, GLAMOR_ACCESS_RO)) {
+			if (!mask
+			    || glamor_prepare_access_picture(mask,
+							     GLAMOR_ACCESS_RO))
+			{
+				fbComposite(op,
+					    source, mask, dest,
+					    x_source, y_source,
+					    x_mask, y_mask, x_dest,
+					    y_dest, width, height);
+				if (mask)
+					glamor_finish_access_picture(mask, GLAMOR_ACCESS_RO);
+			}
+			if (source_pixmap != dest_pixmap)
+				glamor_finish_access_picture(source, GLAMOR_ACCESS_RO);
+		}
+		glamor_finish_access_picture(dest, GLAMOR_ACCESS_RW);
+	}
+
+#define PUT_SUB_PICTURE(p, access)		do {				\
+	if (sub_ ##p ##_pixmap != NULL) {					\
+		x_ ##p = saved_ ##p ##_x;					\
+		y_ ##p = saved_ ##p ##_y;					\
+		p->pDrawable = saved_ ##p ##_drawable;				\
+		if (p->pCompositeClip)						\
+			pixman_region_translate (p->pCompositeClip,		\
+						 p->pDrawable->x + x_ ##p,	\
+						 p->pDrawable->y + y_ ##p);	\
+		glamor_put_sub_pixmap(sub_ ##p ##_pixmap, p ##_pixmap,		\
+				      x_ ##p + p ##_x_off + p->pDrawable->x,	\
+				      y_ ##p + p ##_y_off + p->pDrawable->y,	\
+				      width, height, access);			\
+	}} while(0)
+	if (mask && mask->pDrawable)
+		PUT_SUB_PICTURE(mask, GLAMOR_ACCESS_RO);
+	if (source->pDrawable)
+		PUT_SUB_PICTURE(source, GLAMOR_ACCESS_RO);
+	PUT_SUB_PICTURE(dest, GLAMOR_ACCESS_RW);
+      done:
+	return ret;
+}
+
+void
+glamor_composite(CARD8 op,
+		 PicturePtr source,
+		 PicturePtr mask,
+		 PicturePtr dest,
+		 INT16 x_source,
+		 INT16 y_source,
+		 INT16 x_mask,
+		 INT16 y_mask,
+		 INT16 x_dest, INT16 y_dest,
+		 CARD16 width, CARD16 height)
+{
+	_glamor_composite(op, source, mask, dest, x_source, y_source,
+			  x_mask, y_mask, x_dest, y_dest, width, height,
+			  TRUE);
+}
+
+Bool
+glamor_composite_nf(CARD8 op,
+		    PicturePtr source,
+		    PicturePtr mask,
+		    PicturePtr dest,
+		    INT16 x_source,
+		    INT16 y_source,
+		    INT16 x_mask,
+		    INT16 y_mask,
+		    INT16 x_dest, INT16 y_dest,
+		    CARD16 width, CARD16 height)
+{
+	return _glamor_composite(op, source, mask, dest, x_source, y_source,
+				 x_mask, y_mask, x_dest, y_dest, width, height,
+				 FALSE);
+}
+
+static void
+glamor_get_src_rect_extent(int nrect,
+			   glamor_composite_rect_t *rects,
+			   BoxPtr extent)
+{
+	extent->x1 = MAXSHORT;
+	extent->y1 = MAXSHORT;
+	extent->x2 = MINSHORT;
+	extent->y2 = MINSHORT;
+
+	while(nrect--) {
+		if (extent->x1 > rects->x_src)
+			extent->x1 = rects->x_src;
+		if (extent->y1 > rects->y_src)
+			extent->y1 = rects->y_src;
+		if (extent->x2 < rects->x_src + rects->width)
+			extent->x2 = rects->x_src + rects->width;
+		if (extent->y2 < rects->y_src + rects->height)
+			extent->y2 = rects->y_src + rects->height;
+		rects++;
+	}
+}
+
+static void
+glamor_composite_src_rect_translate(int nrect,
+				    glamor_composite_rect_t *rects,
+				    int x, int y)
+{
+	while(nrect--) {
+		rects->x_src += x;
+		rects->y_src += y;
+		rects++;
+	}
+}
+
+void
+glamor_composite_glyph_rects(CARD8 op,
+			     PicturePtr src, PicturePtr mask, PicturePtr dst,
+			     int nrect, glamor_composite_rect_t * rects)
+{
+	int n;
+	PicturePtr temp_src = NULL;
+	glamor_composite_rect_t *r;
+
+	ValidatePicture(src);
+	ValidatePicture(dst);
+	if (!(glamor_is_large_picture(src)
+	    || (mask && glamor_is_large_picture(mask))
+	    || glamor_is_large_picture(dst))) {
+		glamor_pixmap_private *src_pixmap_priv = NULL;
+		glamor_pixmap_private *mask_pixmap_priv = NULL;
+		glamor_pixmap_private *dst_pixmap_priv;
+		glamor_pixmap_private *temp_src_priv = NULL;
+		BoxRec src_extent;
+
+		dst_pixmap_priv = glamor_get_pixmap_private
+					(glamor_get_drawable_pixmap(dst->pDrawable));
+
+		if (mask && mask->pDrawable)
+			mask_pixmap_priv = glamor_get_pixmap_private
+						(glamor_get_drawable_pixmap(mask->pDrawable));
+		if (src->pDrawable)
+			src_pixmap_priv = glamor_get_pixmap_private
+						(glamor_get_drawable_pixmap(src->pDrawable));
+
+		if (!src->pDrawable
+		    && (src->pSourcePict->type != SourcePictTypeSolidFill)) {
+			glamor_get_src_rect_extent(nrect, rects, &src_extent);
+			temp_src = glamor_convert_gradient_picture(dst->pDrawable->pScreen,
+						    src,
+						    src_extent.x1, src_extent.y1,
+						    src_extent.x2 - src_extent.x1,
+						    src_extent.y2 - src_extent.y1);
+			if (!temp_src)
+				goto fallback;
+
+			temp_src_priv = glamor_get_pixmap_private
+						((PixmapPtr)(temp_src->pDrawable));
+			glamor_composite_src_rect_translate(nrect, rects,
+							-src_extent.x1, -src_extent.y1);
+		} else {
+			temp_src = src;
+			temp_src_priv = src_pixmap_priv;
+		}
+
+		if (mask && mask->componentAlpha) {
+			if (op == PictOpOver) {
+				if (glamor_composite_with_shader(PictOpOutReverse,
+						 temp_src, mask, dst, temp_src_priv,
+						 mask_pixmap_priv, dst_pixmap_priv, nrect, rects,
+						 TRUE))
+					goto done;
+			}
+		} else {
+				if (glamor_composite_with_shader(op, temp_src, mask, dst, temp_src_priv,
+						 mask_pixmap_priv, dst_pixmap_priv, nrect, rects, FALSE))
+					goto done;
+		}
+	}
+fallback:
+	n = nrect;
+	r = rects;
+
+	while (n--) {
+		CompositePicture(op,
+				 temp_src ? temp_src : src,
+				 mask,
+				 dst,
+				 r->x_src, r->y_src,
+				 r->x_mask, r->y_mask,
+				 r->x_dst, r->y_dst, r->width, r->height);
+		r++;
+	}
+
+done:
+	if (temp_src && temp_src != src)
+		FreePicture(temp_src, 0);
+}
+
+static Bool
+_glamor_composite_rects (CARD8         op,
+			      PicturePtr    pDst,
+			      xRenderColor  *color,
+			      int           nRect,
+			      xRectangle    *rects,
+			      Bool	    fallback)
+{
+	miCompositeRects(op, pDst, color, nRect, rects);
+	return TRUE;
+}
+
+void
+glamor_composite_rects (CARD8         op,
+			PicturePtr    pDst,
+			xRenderColor  *color,
+			int           nRect,
+			xRectangle    *rects)
+{
+	_glamor_composite_rects(op, pDst, color, nRect, rects, TRUE);
+}
+
+Bool
+glamor_composite_rects_nf (CARD8         op,
+			   PicturePtr    pDst,
+			   xRenderColor  *color,
+			   int           nRect,
+			   xRectangle    *rects)
+{
+	return _glamor_composite_rects(op, pDst, color, nRect, rects, FALSE);
+}
+
+#endif				/* RENDER */
diff --git a/glamor/glamor_setspans.c b/glamor/glamor_setspans.c
new file mode 100644
index 000000000..3d447b606
--- /dev/null
+++ b/glamor/glamor_setspans.c
@@ -0,0 +1,111 @@
+/*
+ * Copyright © 2009 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ *
+ * Authors:
+ *    Eric Anholt <eric@anholt.net>
+ *    Zhigang Gong <zhigang.gong@linux.intel.com>
+ *
+ */
+
+#include "glamor_priv.h"
+
+static Bool
+_glamor_set_spans(DrawablePtr drawable, GCPtr gc, char *src,
+		 DDXPointPtr points, int *widths, int numPoints, int sorted,
+		 Bool fallback)
+{
+	PixmapPtr dest_pixmap = glamor_get_drawable_pixmap(drawable);
+	glamor_pixmap_private *dest_pixmap_priv;
+	int i;
+	uint8_t *drawpixels_src = (uint8_t *) src;
+	RegionPtr clip = fbGetCompositeClip(gc);
+	BoxRec *pbox;
+	int x_off, y_off;
+	Bool ret = FALSE;
+
+	dest_pixmap_priv = glamor_get_pixmap_private(dest_pixmap);
+	if (!GLAMOR_PIXMAP_PRIV_HAS_FBO(dest_pixmap_priv)) {
+		glamor_fallback("pixmap has no fbo.\n");
+		goto fail;
+	}
+
+	/* XXX Shall we set alu here? */
+	if (!glamor_set_planemask(dest_pixmap, gc->planemask))
+		goto fail;
+
+	glamor_get_drawable_deltas(drawable, dest_pixmap, &x_off, &y_off);
+	for (i = 0; i < numPoints; i++) {
+
+		int n = REGION_NUM_RECTS(clip);
+		pbox = REGION_RECTS(clip);
+		while (n--) {
+			int x1 = points[i].x;
+			int x2 = x1 + widths[i];
+			int y1 = points[i].y;
+
+			if (pbox->y1 > points[i].y || pbox->y2 < points[i].y)
+				break;
+			x1 = x1 > pbox->x1 ? x1 : pbox->x1;
+			x2 = x2 < pbox->x2 ? x2 : pbox->x2;
+			if (x1 >= x2)
+				continue;
+			glamor_upload_sub_pixmap_to_texture(dest_pixmap, x1 + x_off,  y1 + y_off, x2 - x1, 1,
+							    PixmapBytePad(widths[i], drawable->depth),
+							    drawpixels_src, 0);
+		}
+		drawpixels_src += PixmapBytePad(widths[i], drawable->depth);
+	}
+	ret = TRUE;
+	goto done;
+
+fail:
+	if (!fallback
+	    && glamor_ddx_fallback_check_pixmap(drawable))
+		goto done;
+
+	glamor_fallback("to %p (%c)\n",
+			drawable, glamor_get_drawable_location(drawable));
+	if (glamor_prepare_access(drawable, GLAMOR_ACCESS_RW)) {
+		fbSetSpans(drawable, gc, src, points, widths, numPoints, sorted);
+		glamor_finish_access(drawable, GLAMOR_ACCESS_RW);
+	}
+	ret = TRUE;
+
+done:
+	return ret;
+}
+
+void
+glamor_set_spans(DrawablePtr drawable, GCPtr gc, char *src,
+		    DDXPointPtr points, int *widths, int n, int sorted)
+{
+	_glamor_set_spans(drawable, gc, src, points, 
+			     widths, n, sorted, TRUE);
+}
+
+Bool
+glamor_set_spans_nf(DrawablePtr drawable, GCPtr gc, char *src,
+		    DDXPointPtr points, int *widths, int n, int sorted)
+{
+	return _glamor_set_spans(drawable, gc, src, points, 
+				    widths, n, sorted, FALSE);
+}
diff --git a/glamor/glamor_tile.c b/glamor/glamor_tile.c
new file mode 100644
index 000000000..60486cfc0
--- /dev/null
+++ b/glamor/glamor_tile.c
@@ -0,0 +1,325 @@
+/*
+ * Copyright © 2009 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ *
+ * Authors:
+ *    Eric Anholt <eric@anholt.net>
+ *    Zhigang Gong <zhigang.gong@linux.intel.com>
+ *
+ */
+
+#include "glamor_priv.h"
+
+/** @file glamor_tile.c
+ *
+ * Implements the basic fill-with-a-tile support used by multiple GC ops.
+ */
+
+void
+glamor_init_tile_shader(ScreenPtr screen)
+{
+	glamor_screen_private *glamor_priv;
+	glamor_gl_dispatch *dispatch;
+	const char *tile_vs =
+	    "attribute vec4 v_position;\n"
+	    "attribute vec4 v_texcoord0;\n"
+	    "varying vec2 tile_texture;\n"
+	    "void main()\n"
+	    "{\n"
+	    "       gl_Position = v_position;\n"
+	    "       tile_texture = v_texcoord0.xy;\n" "}\n";
+	const char *tile_fs =
+	    GLAMOR_DEFAULT_PRECISION
+	    "varying vec2 tile_texture;\n"
+	    "uniform sampler2D sampler;\n"
+	    "uniform vec2	wh;"
+	    "void main()\n"
+	    "{\n"
+	    "   vec2 rel_tex;"
+	    "   rel_tex = tile_texture * wh; \n"
+	    "   rel_tex = floor(rel_tex) + (fract(rel_tex) / wh); \n"
+	    "	gl_FragColor = texture2D(sampler, rel_tex);\n"
+	    "}\n";
+	GLint fs_prog, vs_prog;
+	GLint sampler_uniform_location;
+
+	glamor_priv = glamor_get_screen_private(screen);
+	dispatch = glamor_get_dispatch(glamor_priv);
+	glamor_priv->tile_prog = dispatch->glCreateProgram();
+	vs_prog = glamor_compile_glsl_prog(dispatch, GL_VERTEX_SHADER, tile_vs);
+	fs_prog = glamor_compile_glsl_prog(dispatch, GL_FRAGMENT_SHADER,
+					   tile_fs);
+	dispatch->glAttachShader(glamor_priv->tile_prog, vs_prog);
+	dispatch->glAttachShader(glamor_priv->tile_prog, fs_prog);
+
+	dispatch->glBindAttribLocation(glamor_priv->tile_prog,
+				       GLAMOR_VERTEX_POS, "v_position");
+	dispatch->glBindAttribLocation(glamor_priv->tile_prog,
+				       GLAMOR_VERTEX_SOURCE,
+				       "v_texcoord0");
+	glamor_link_glsl_prog(dispatch, glamor_priv->tile_prog);
+
+	sampler_uniform_location =
+	    dispatch->glGetUniformLocation(glamor_priv->tile_prog,
+					   "sampler");
+	dispatch->glUseProgram(glamor_priv->tile_prog);
+	dispatch->glUniform1i(sampler_uniform_location, 0);
+
+	glamor_priv->tile_wh =
+	    dispatch->glGetUniformLocation(glamor_priv->tile_prog,
+					   "wh");
+	dispatch->glUseProgram(0);
+	glamor_put_dispatch(glamor_priv);
+}
+
+void
+glamor_fini_tile_shader(ScreenPtr screen)
+{
+	glamor_screen_private *glamor_priv;
+	glamor_gl_dispatch *dispatch;
+
+	glamor_priv = glamor_get_screen_private(screen);
+	dispatch = glamor_get_dispatch(glamor_priv);
+	dispatch->glDeleteProgram(glamor_priv->tile_prog);
+	glamor_put_dispatch(glamor_priv);
+}
+
+static void
+_glamor_tile(PixmapPtr pixmap, PixmapPtr tile,
+	    int x, int y, int width, int height,
+	    int tile_x, int tile_y)
+{
+	ScreenPtr screen = pixmap->drawable.pScreen;
+	glamor_screen_private *glamor_priv =
+	    glamor_get_screen_private(screen);
+	glamor_gl_dispatch *dispatch;
+	int x1 = x;
+	int x2 = x + width;
+	int y1 = y;
+	int y2 = y + height;
+	int tile_x1 = tile_x;
+	int tile_x2 = tile_x + width;
+	int tile_y1 = tile_y;
+	int tile_y2 = tile_y + height;
+	float vertices[8];
+	float source_texcoords[8];
+	GLfloat dst_xscale, dst_yscale, src_xscale, src_yscale;
+	glamor_pixmap_private *src_pixmap_priv;
+	glamor_pixmap_private *dst_pixmap_priv;
+	float wh[4];
+	src_pixmap_priv = glamor_get_pixmap_private(tile);
+	dst_pixmap_priv = glamor_get_pixmap_private(pixmap);
+
+	glamor_set_destination_pixmap_priv_nc(dst_pixmap_priv);
+	pixmap_priv_get_dest_scale(dst_pixmap_priv, &dst_xscale, &dst_yscale);
+	pixmap_priv_get_scale(src_pixmap_priv, &src_xscale,
+			      &src_yscale);
+	dispatch = glamor_get_dispatch(glamor_priv);
+	dispatch->glUseProgram(glamor_priv->tile_prog);
+
+	glamor_pixmap_fbo_fix_wh_ratio(wh, src_pixmap_priv);
+	dispatch->glUniform2fv(glamor_priv->tile_wh, 1, wh);
+	dispatch->glActiveTexture(GL_TEXTURE0);
+	dispatch->glBindTexture(GL_TEXTURE_2D,
+				src_pixmap_priv->base.fbo->tex);
+	dispatch->glTexParameteri(GL_TEXTURE_2D,
+				  GL_TEXTURE_MIN_FILTER,
+				  GL_NEAREST);
+	dispatch->glTexParameteri(GL_TEXTURE_2D,
+				  GL_TEXTURE_MAG_FILTER,
+				  GL_NEAREST);
+	dispatch->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T,
+				  GL_REPEAT);
+	dispatch->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S,
+				  GL_REPEAT);
+#ifndef GLAMOR_GLES2
+	dispatch->glEnable(GL_TEXTURE_2D);
+#endif
+	glamor_set_repeat_normalize_tcoords
+			(src_pixmap_priv, RepeatNormal,
+			 src_xscale, src_yscale,
+			 tile_x1, tile_y1,
+			 tile_x2, tile_y2,
+			 glamor_priv->yInverted,
+			 source_texcoords);
+
+	dispatch->glVertexAttribPointer(GLAMOR_VERTEX_SOURCE, 2,
+					GL_FLOAT, GL_FALSE,
+					2 * sizeof(float),
+					source_texcoords);
+	dispatch->glEnableVertexAttribArray(GLAMOR_VERTEX_SOURCE);
+
+	glamor_set_normalize_vcoords(dst_pixmap_priv, dst_xscale, dst_yscale,
+				     x1, y1,
+				     x2, y2,
+				     glamor_priv->yInverted, vertices);
+
+	dispatch->glVertexAttribPointer(GLAMOR_VERTEX_POS, 2, GL_FLOAT,
+					GL_FALSE, 2 * sizeof(float),
+					vertices);
+	dispatch->glEnableVertexAttribArray(GLAMOR_VERTEX_POS);
+	dispatch->glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
+
+	dispatch->glDisableVertexAttribArray(GLAMOR_VERTEX_SOURCE);
+#ifndef GLAMOR_GLES2
+		dispatch->glDisable(GL_TEXTURE_2D);
+#endif
+	dispatch->glDisableVertexAttribArray(GLAMOR_VERTEX_POS);
+	dispatch->glUseProgram(0);
+	glamor_put_dispatch(glamor_priv);
+
+	glamor_priv->state = RENDER_STATE;
+	glamor_priv->render_idle_cnt = 0;
+}
+
+Bool
+glamor_tile(PixmapPtr pixmap, PixmapPtr tile,
+	    int x, int y, int width, int height,
+	    unsigned char alu, unsigned long planemask,
+	    int tile_x, int tile_y)
+{
+	ScreenPtr screen = pixmap->drawable.pScreen;
+	glamor_screen_private *glamor_priv =
+	    glamor_get_screen_private(screen);
+	glamor_pixmap_private *dst_pixmap_priv;
+	glamor_pixmap_private *src_pixmap_priv;
+	glamor_gl_dispatch *dispatch;
+
+	dst_pixmap_priv = glamor_get_pixmap_private(pixmap);
+	src_pixmap_priv = glamor_get_pixmap_private(tile);
+
+	if (!GLAMOR_PIXMAP_PRIV_HAS_FBO(dst_pixmap_priv))
+		return FALSE;
+
+	if (glamor_priv->tile_prog == 0) {
+		glamor_fallback("Tiling unsupported\n");
+		goto fail;
+	}
+
+	if (!GLAMOR_PIXMAP_PRIV_HAS_FBO(src_pixmap_priv)) {
+		/* XXX dynamic uploading candidate. */
+		glamor_fallback("Non-texture tile pixmap\n");
+		goto fail;
+	}
+
+	if (!glamor_set_planemask(pixmap, planemask)) {
+		glamor_fallback("unsupported planemask %lx\n", planemask);
+		goto fail;
+	}
+
+	dispatch = glamor_get_dispatch(glamor_priv);
+	if (!glamor_set_alu(dispatch, alu)) {
+		glamor_fallback("unsupported alu %x\n", alu);
+		glamor_put_dispatch(glamor_priv);
+		goto fail;
+	}
+
+	if (dst_pixmap_priv->type == GLAMOR_TEXTURE_LARGE
+	    || src_pixmap_priv->type == GLAMOR_TEXTURE_LARGE) {
+			glamor_pixmap_clipped_regions *clipped_dst_regions;
+			int n_dst_region, i, j, k;
+			BoxRec box;
+			RegionRec region;
+
+			box.x1 = x;
+			box.y1 = y;
+			box.x2 = x + width;
+			box.y2 = y + height;
+			RegionInitBoxes(&region, &box, 1);
+			clipped_dst_regions = glamor_compute_clipped_regions(dst_pixmap_priv,
+									     &region, &n_dst_region, 0, 0, 0);
+			for(i = 0; i < n_dst_region; i++)
+			{
+				int n_src_region;
+				glamor_pixmap_clipped_regions *clipped_src_regions;
+				BoxPtr current_boxes;
+				int n_current_boxes;
+
+				SET_PIXMAP_FBO_CURRENT(dst_pixmap_priv, clipped_dst_regions[i].block_idx);
+
+				if (src_pixmap_priv->type == GLAMOR_TEXTURE_LARGE) {
+					RegionTranslate(clipped_dst_regions[i].region,
+							tile_x - x, tile_y - y);
+					DEBUGF("tiled a large src pixmap. %dx%d \n", tile->drawable.width, tile->drawable.height);
+					clipped_src_regions = glamor_compute_clipped_regions(src_pixmap_priv,
+											     clipped_dst_regions[i].region,
+											     &n_src_region, 1, 0, 0);
+					DEBUGF("got %d src regions %d \n", n_src_region);
+					for (j = 0; j < n_src_region; j++)
+					{
+
+						SET_PIXMAP_FBO_CURRENT(src_pixmap_priv, clipped_src_regions[j].block_idx);
+
+						RegionTranslate(clipped_src_regions[j].region,
+								x - tile_x,
+								y - tile_y);
+						current_boxes = RegionRects(clipped_src_regions[j].region);
+						n_current_boxes = RegionNumRects(clipped_src_regions[j].region);
+						for(k = 0; k < n_current_boxes; k++)
+						{
+							DEBUGF("Tile on %d %d %d %d dst block id %d tile block id %d tilex %d tiley %d\n",
+								     current_boxes[k].x1, current_boxes[k].y1,
+								     current_boxes[k].x2 - current_boxes[k].x1,
+								     current_boxes[k].y2 - current_boxes[k].y1,
+									clipped_dst_regions[i].block_idx,
+									clipped_src_regions[j].block_idx,
+								     (tile_x + (current_boxes[k].x1 - x)),
+								     tile_y + (current_boxes[k].y1 - y));
+
+							_glamor_tile(pixmap, tile,
+								     current_boxes[k].x1, current_boxes[k].y1,
+								     current_boxes[k].x2 - current_boxes[k].x1,
+								     current_boxes[k].y2 - current_boxes[k].y1,
+								     (tile_x + (current_boxes[k].x1 - x)),
+								     (tile_y + (current_boxes[k].y1 - y)));
+						}
+
+						RegionDestroy(clipped_src_regions[j].region);
+					}
+					free(clipped_src_regions);
+				} else {
+					current_boxes = RegionRects(clipped_dst_regions[i].region);
+					n_current_boxes = RegionNumRects(clipped_dst_regions[i].region);
+					for(k = 0; k < n_current_boxes; k++)
+					{
+						_glamor_tile(pixmap, tile,
+							     current_boxes[k].x1, current_boxes[k].y1,
+							     current_boxes[k].x2 - current_boxes[k].x1,
+							     current_boxes[k].y2 - current_boxes[k].y1,
+							     (tile_x + (current_boxes[k].x1 - x)),
+							     (tile_y + (current_boxes[k].y1 - y)));
+					}
+				}
+				RegionDestroy(clipped_dst_regions[i].region);
+			}
+			free(clipped_dst_regions);
+			RegionUninit(&region);
+	}
+	else
+		_glamor_tile(pixmap, tile, x, y, width, height, tile_x, tile_y);
+
+	glamor_set_alu(dispatch, GXcopy);
+	glamor_put_dispatch(glamor_priv);
+	return TRUE;
+fail:
+	return FALSE;
+
+}
diff --git a/glamor/glamor_trapezoid.c b/glamor/glamor_trapezoid.c
new file mode 100644
index 000000000..76b3729cf
--- /dev/null
+++ b/glamor/glamor_trapezoid.c
@@ -0,0 +1,1819 @@
+/*
+ * Copyright © 2009 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ *
+ * Authors:
+ *    Junyan He <junyan.he@linux.intel.com>
+ *
+ */
+
+/** @file glamor_trapezoid.c
+ *
+ * Trapezoid acceleration implementation
+ */
+
+#include "glamor_priv.h"
+
+#ifdef RENDER
+#include "mipict.h"
+#include "fbpict.h"
+
+static xFixed
+_glamor_linefixedX (xLineFixed *l, xFixed y, Bool ceil)
+{
+	xFixed dx = l->p2.x - l->p1.x;
+	xFixed_32_32 ex = (xFixed_32_32) (y - l->p1.y) * dx;
+	xFixed dy = l->p2.y - l->p1.y;
+	if (ceil)
+		ex += (dy - 1);
+	return l->p1.x + (xFixed) (ex / dy);
+}
+
+static xFixed
+_glamor_linefixedY (xLineFixed *l, xFixed x, Bool ceil)
+{
+	xFixed dy = l->p2.y - l->p1.y;
+	xFixed_32_32 ey = (xFixed_32_32) (x - l->p1.x) * dy;
+	xFixed dx = l->p2.x - l->p1.x;
+	if (ceil)
+		ey += (dx - 1);
+	return l->p1.y + (xFixed) (ey / dx);
+}
+
+#ifdef GLAMOR_TRAPEZOID_SHADER
+
+#define GLAMOR_VERTEX_TOP_BOTTOM  (GLAMOR_VERTEX_SOURCE + 1)
+#define GLAMOR_VERTEX_LEFT_PARAM  (GLAMOR_VERTEX_SOURCE + 2)
+#define GLAMOR_VERTEX_RIGHT_PARAM (GLAMOR_VERTEX_SOURCE + 3)
+
+#define DEBUG_CLIP_VTX 0
+
+#define POINT_INSIDE_CLIP_RECT(point, rect)	\
+    (point[0] >= IntToxFixed(rect->x1)		\
+     && point[0] <= IntToxFixed(rect->x2) 	\
+     && point[1] >= IntToxFixed(rect->y1)	\
+     && point[1] <= IntToxFixed(rect->y2))
+
+static xFixed
+_glamor_lines_crossfixedY (xLineFixed *l, xLineFixed *r)
+{
+	xFixed dx1 = l->p2.x - l->p1.x;
+	xFixed dx2 = r->p2.x - r->p1.x;
+	xFixed dy1 = l->p2.y - l->p1.y;
+	xFixed dy2 = r->p2.y - r->p1.y;
+	xFixed_32_32 tmp = (xFixed_32_32) dy2 * dy1;
+	xFixed_32_32 dividend1 = (tmp >> 32) * (l->p1.x - r->p1.x);
+	xFixed_32_32 dividend2;
+	xFixed_32_32 dividend3;
+	xFixed_32_32 divisor;
+
+	tmp = (xFixed_32_32) dx1 * dy2;
+	dividend2 = (tmp >> 32) * l->p1.y;
+	tmp = (xFixed_32_32) dy1 * dx2;
+	dividend3 = (tmp >> 32) * r->p1.y;
+	divisor = ((xFixed_32_32) dx1 * (xFixed_32_32) dy2
+	            - (xFixed_32_32) dy1 * (xFixed_32_32) dx2) >> 32;
+
+	if (divisor)
+		return (xFixed)((dividend2 - dividend1 - dividend3) / divisor);
+
+	return 0xFFFFFFFF;
+}
+
+static Bool
+point_inside_trapezoid(int point[2], xTrapezoid * trap, xFixed cut_y)
+{
+	int ret = TRUE;
+	int tmp;
+	if (point[1] > trap->bottom) {
+		ret = FALSE;
+		if (DEBUG_CLIP_VTX) {
+			ErrorF("Out of Trap bottom, point[1] = %d(0x%x)), "
+			       "bottom = %d(0x%x)\n",
+			       (unsigned int)xFixedToInt(point[1]), point[1],
+			       (unsigned int)xFixedToInt(trap->bottom),
+			       (unsigned int)trap->bottom);
+		}
+
+		return ret;
+	}
+
+	if (point[1] < trap->top) {
+		ret = FALSE;
+		if (DEBUG_CLIP_VTX) {
+			ErrorF("Out of Trap top, point[1] = %d(0x%x)), "
+			       "top = %d(0x%x)\n",
+			       (unsigned int)xFixedToInt(point[1]), point[1],
+			       (unsigned int)xFixedToInt(trap->top),
+			       (unsigned int)trap->top);
+		}
+
+		return ret;
+	}
+
+	tmp = _glamor_linefixedX (&trap->left, point[1], FALSE);
+	if (point[0] < tmp) {
+		ret = FALSE;
+
+		if (abs(cut_y - trap->top) < pixman_fixed_1_minus_e &&
+		           abs(point[1] - trap->top) < pixman_fixed_1_minus_e &&
+		           tmp - point[0] < pixman_fixed_1_minus_e) {
+			ret = TRUE;
+		} else if (abs(cut_y - trap->bottom) < pixman_fixed_1_minus_e &&
+		           point[1] - trap->bottom < pixman_fixed_1_minus_e &&
+		           tmp - point[0] < pixman_fixed_1_minus_e) {
+			ret = TRUE;
+		}
+
+		if (DEBUG_CLIP_VTX && !ret) {
+			ErrorF("Out of Trap left, point[0] = %d(0x%x)), "
+			       "left = %d(0x%x)\n",
+			       (unsigned int)xFixedToInt(point[0]), point[0],
+			       (unsigned int)xFixedToInt(tmp), (unsigned int)tmp);
+		}
+
+		if (!ret)
+			return ret;
+	}
+
+	tmp = _glamor_linefixedX (&trap->right, point[1], TRUE);
+	if (point[0] > tmp) {
+		ret = FALSE;
+
+		if (abs(cut_y - trap->top) < pixman_fixed_1_minus_e &&
+		           abs(point[1] - trap->top) < pixman_fixed_1_minus_e &&
+		           point[0] - tmp < pixman_fixed_1_minus_e) {
+			ret = TRUE;
+		} else if (abs(cut_y - trap->bottom) < pixman_fixed_1_minus_e &&
+		           abs(point[1] - trap->bottom) < pixman_fixed_1_minus_e &&
+		           point[0] - tmp < pixman_fixed_1_minus_e) {
+			ret = TRUE;
+		}
+
+		if (DEBUG_CLIP_VTX && !ret) {
+			ErrorF("Out of Trap right, point[0] = %d(0x%x)), "
+			       "right = %d(0x%x)\n",
+			       (unsigned int)xFixedToInt(point[0]), point[0],
+			       (unsigned int)xFixedToInt(tmp), (unsigned int)tmp);
+		}
+
+		if (!ret)
+			return ret;
+	}
+
+	return ret;
+}
+
+static void
+glamor_emit_composite_triangle(ScreenPtr screen,
+        const float *src_coords,
+        const float *mask_coords,
+        const float *dst_coords)
+{
+	glamor_emit_composite_vert(screen, src_coords, mask_coords,
+	        dst_coords, 0);
+	glamor_emit_composite_vert(screen, src_coords, mask_coords,
+	        dst_coords, 1);
+	glamor_emit_composite_vert(screen, src_coords, mask_coords,
+	        dst_coords, 2);
+}
+
+static void
+glamor_flush_composite_triangles(ScreenPtr screen)
+{
+	glamor_screen_private *glamor_priv =
+	    glamor_get_screen_private(screen);
+	glamor_gl_dispatch *dispatch;
+
+	dispatch = glamor_get_dispatch(glamor_priv);
+	if (glamor_priv->gl_flavor == GLAMOR_GL_DESKTOP)
+		dispatch->glUnmapBuffer(GL_ARRAY_BUFFER);
+	else {
+
+		dispatch->glBindBuffer(GL_ARRAY_BUFFER, glamor_priv->vbo);
+		dispatch->glBufferData(GL_ARRAY_BUFFER,
+		        glamor_priv->vbo_offset,
+		        glamor_priv->vb, GL_DYNAMIC_DRAW);
+	}
+
+	if (!glamor_priv->render_nr_verts)
+		return;
+
+	dispatch->glDrawArrays(GL_TRIANGLES, 0, glamor_priv->render_nr_verts);
+	glamor_put_dispatch(glamor_priv);
+}
+
+static Bool
+_glamor_clip_trapezoid_vertex(xTrapezoid * trap, BoxPtr pbox,
+        int vertex[6], int *num)
+{
+	xFixed edge_cross_y = 0xFFFFFFFF;
+	int tl[2];
+	int bl[2];
+	int tr[2];
+	int br[2];
+	int left_cut_top[2];
+	int left_cut_left[2];
+	int left_cut_right[2];
+	int left_cut_bottom[2];
+	int right_cut_top[2];
+	int right_cut_left[2];
+	int right_cut_right[2];
+	int right_cut_bottom[2];
+	int tmp[2];
+	int tmp_vtx[20*2];
+	float tmp_vtx_slope[20];
+	BoxRec trap_bound;
+	int i = 0;
+	int vertex_num = 0;
+
+	if (DEBUG_CLIP_VTX) {
+		ErrorF("The parameter of xTrapezoid is:\ntop: %d  0x%x\tbottom: %d  0x%x\n"
+		       "left:  p1 (%d   0x%x, %d   0x%x)\tp2 (%d   0x%x, %d   0x%x)\n"
+		       "right: p1 (%d   0x%x, %d   0x%x)\tp2 (%d   0x%x, %d   0x%x)\n",
+		       xFixedToInt(trap->top), (unsigned int)trap->top,
+		       xFixedToInt(trap->bottom), (unsigned int)trap->bottom,
+		       xFixedToInt(trap->left.p1.x), (unsigned int)trap->left.p1.x,
+		       xFixedToInt(trap->left.p1.y), (unsigned int)trap->left.p1.y,
+		       xFixedToInt(trap->left.p2.x), (unsigned int)trap->left.p2.x,
+		       xFixedToInt(trap->left.p2.y), (unsigned int)trap->left.p2.y,
+		       xFixedToInt(trap->right.p1.x), (unsigned int)trap->right.p1.x,
+		       xFixedToInt(trap->right.p1.y), (unsigned int)trap->right.p1.y,
+		       xFixedToInt(trap->right.p2.x), (unsigned int)trap->right.p2.x,
+		       xFixedToInt(trap->right.p2.y), (unsigned int)trap->right.p2.y);
+	}
+
+	miTrapezoidBounds(1, trap, &trap_bound);
+	if (DEBUG_CLIP_VTX)
+		ErrorF("The bounds for this traps is: bounds.x1 = %d, bounds.x2 = %d, "
+		       "bounds.y1 = %d, bounds.y2 = %d\n", trap_bound.x1, trap_bound.x2,
+		       trap_bound.y1, trap_bound.y2);
+
+	if (trap_bound.x1 > pbox->x2 || trap_bound.x2 < pbox->x1)
+		return FALSE;
+	if (trap_bound.y1 > pbox->y2 || trap_bound.y2 < pbox->y1)
+		return FALSE;
+
+#define IS_TRAP_EDGE_VERTICAL(edge)		\
+	(edge->p1.x == edge->p2.x)
+
+#define CACULATE_CUT_VERTEX(vtx, cal_x, ceil, vh_edge, edge)		\
+	do {								\
+	    if(cal_x) {							\
+		vtx[1] = (vh_edge);					\
+		vtx[0] = (_glamor_linefixedX(				\
+			      edge, vh_edge, ceil));			\
+		if(DEBUG_CLIP_VTX)					\
+		    ErrorF("The intersection point of line y=%d and "	\
+			   "line of p1:(%d,%d) -- p2 (%d,%d) "		\
+			   "is (%d, %d)\n",				\
+			   xFixedToInt(vh_edge),			\
+			   xFixedToInt(edge->p1.x),			\
+			   xFixedToInt(edge->p1.y),			\
+			   xFixedToInt(edge->p2.x),			\
+			   xFixedToInt(edge->p2.y),			\
+			   xFixedToInt(vtx[0]),				\
+			   xFixedToInt(vtx[1]));			\
+	    } else {							\
+		vtx[0] = (vh_edge);					\
+		vtx[1] = (_glamor_linefixedY(				\
+			      edge, vh_edge, ceil));			\
+		if(DEBUG_CLIP_VTX)					\
+		    ErrorF("The intersection point of line x=%d and "	\
+			   "line of p1:(%d,%d) -- p2 (%d,%d) "		\
+			   "is (%d, %d)\n",				\
+			   xFixedToInt(vh_edge),			\
+			   xFixedToInt(edge->p1.x),			\
+			   xFixedToInt(edge->p1.y),			\
+			   xFixedToInt(edge->p2.x),			\
+			   xFixedToInt(edge->p2.y),			\
+			   xFixedToInt(vtx[0]),				\
+			   xFixedToInt(vtx[1]));			\
+	    }								\
+	} while(0)
+
+#define ADD_VERTEX_IF_INSIDE(vtx)				\
+	if(POINT_INSIDE_CLIP_RECT(vtx, pbox)			\
+	   && point_inside_trapezoid(vtx, trap, edge_cross_y)){	\
+	    tmp_vtx[vertex_num] = xFixedToInt(vtx[0]);		\
+	    tmp_vtx[vertex_num + 1] = xFixedToInt(vtx[1]);	\
+	    vertex_num += 2;					\
+	    if(DEBUG_CLIP_VTX)					\
+		ErrorF("@ Point: (%d, %d) is inside "		\
+		       "the Rect and Trapezoid\n",		\
+		       xFixedToInt(vtx[0]),			\
+		       xFixedToInt(vtx[1]));			\
+	} else if(DEBUG_CLIP_VTX){				\
+	    ErrorF("X Point: (%d, %d) is outside "		\
+		   "the Rect and Trapezoid\t",			\
+		   xFixedToInt(vtx[0]),				\
+		   xFixedToInt(vtx[1]));			\
+	    if(POINT_INSIDE_CLIP_RECT(vtx, pbox))		\
+		ErrorF("The Point is outside "			\
+		       "the Trapezoid\n");			\
+	    else						\
+		ErrorF("The Point is outside "			\
+		       "the Rect\n");				\
+	}
+
+	/*Trap's right edge cut right edge. */
+	if((!IS_TRAP_EDGE_VERTICAL((&trap->left))) ||
+	        (!IS_TRAP_EDGE_VERTICAL((&trap->right)))) {
+		edge_cross_y = _glamor_lines_crossfixedY((&trap->left), (&trap->right));
+		if (DEBUG_CLIP_VTX) {
+			ErrorF("Trap's left edge cut right edge at %d(0x%x), "
+			       "trap_top = %x, trap_bottom = %x\n",
+			       xFixedToInt(edge_cross_y), edge_cross_y,
+			       (unsigned int)trap->top, (unsigned int)trap->bottom);
+		}
+	}
+
+	/*Trap's TopLeft, BottomLeft, TopRight and BottomRight. */
+	CACULATE_CUT_VERTEX(tl, 1, FALSE, trap->top, (&trap->left));
+	CACULATE_CUT_VERTEX(bl, 1, FALSE, trap->bottom, (&trap->left));
+	CACULATE_CUT_VERTEX(tr, 1, TRUE, trap->top, (&trap->right));
+	CACULATE_CUT_VERTEX(br, 1, TRUE, trap->bottom, (&trap->right));
+
+	if (DEBUG_CLIP_VTX)
+		ErrorF("Trap's TopLeft, BottomLeft, TopRight and BottomRight\n");
+	if (DEBUG_CLIP_VTX)
+		ErrorF("Caculate the vertex of trapezoid:\n"
+		       "      (%3d, %3d)-------------------------(%3d, %3d)\n"
+		       "              /                           \\       \n"
+		       "             /                             \\      \n"
+		       "            /                               \\     \n"
+		       "  (%3d, %3d)---------------------------------(%3d, %3d)\n"
+		       "Clip with rect:\n"
+		       "  (%3d, %3d)------------------------(%3d, %3d)    \n"
+		       "           |                        |             \n"
+		       "           |                        |             \n"
+		       "           |                        |             \n"
+		       "  (%3d, %3d)------------------------(%3d, %3d)    \n",
+		       xFixedToInt(tl[0]), xFixedToInt(tl[1]), xFixedToInt(tr[0]),
+		       xFixedToInt(tr[1]), xFixedToInt(bl[0]), xFixedToInt(bl[1]),
+		       xFixedToInt(br[0]), xFixedToInt(br[1]),
+		       pbox->x1, pbox->y1, pbox->x2, pbox->y1, pbox->x1, pbox->y2,
+		       pbox->x2, pbox->y2);
+
+	ADD_VERTEX_IF_INSIDE(tl);
+	ADD_VERTEX_IF_INSIDE(bl);
+	ADD_VERTEX_IF_INSIDE(tr);
+	ADD_VERTEX_IF_INSIDE(br);
+
+	/*Trap's left edge cut Rect. */
+	if (DEBUG_CLIP_VTX)
+		ErrorF("Trap's left edge cut Rect\n");
+	CACULATE_CUT_VERTEX(left_cut_top, 1, FALSE, IntToxFixed(pbox->y1), (&trap->left));
+	ADD_VERTEX_IF_INSIDE(left_cut_top);
+	if (!IS_TRAP_EDGE_VERTICAL((&trap->left))) {
+		CACULATE_CUT_VERTEX(left_cut_left, 0, FALSE, IntToxFixed(pbox->x1), (&trap->left));
+		ADD_VERTEX_IF_INSIDE(left_cut_left);
+	}
+	CACULATE_CUT_VERTEX(left_cut_bottom, 1, FALSE, IntToxFixed(pbox->y2), (&trap->left));
+	ADD_VERTEX_IF_INSIDE(left_cut_bottom);
+	if (!IS_TRAP_EDGE_VERTICAL((&trap->left))) {
+		CACULATE_CUT_VERTEX(left_cut_right, 0, FALSE, IntToxFixed(pbox->x2), (&trap->left));
+		ADD_VERTEX_IF_INSIDE(left_cut_right);
+	}
+
+	/*Trap's right edge cut Rect. */
+	if (DEBUG_CLIP_VTX)
+		ErrorF("Trap's right edge cut Rect\n");
+	CACULATE_CUT_VERTEX(right_cut_top, 1, TRUE, IntToxFixed(pbox->y1), (&trap->right));
+	ADD_VERTEX_IF_INSIDE(right_cut_top);
+	if (!IS_TRAP_EDGE_VERTICAL((&trap->right))) {
+		CACULATE_CUT_VERTEX(right_cut_left, 0, TRUE, IntToxFixed(pbox->x1), (&trap->right));
+		ADD_VERTEX_IF_INSIDE(right_cut_left);
+	}
+	CACULATE_CUT_VERTEX(right_cut_bottom, 1, TRUE, IntToxFixed(pbox->y2), (&trap->right));
+	ADD_VERTEX_IF_INSIDE(right_cut_bottom);
+	if (!IS_TRAP_EDGE_VERTICAL((&trap->right))) {
+		CACULATE_CUT_VERTEX(right_cut_right, 0, TRUE, IntToxFixed(pbox->x2), (&trap->right));
+		ADD_VERTEX_IF_INSIDE(right_cut_right);
+	}
+
+	/* Trap's top cut Left and Right of rect. */
+	if (DEBUG_CLIP_VTX)
+		ErrorF("Trap's top cut Left and Right of rect\n");
+	tmp[0] = IntToxFixed(pbox->x1);
+	tmp[1] = trap->top;
+	ADD_VERTEX_IF_INSIDE(tmp);
+	tmp[0] = IntToxFixed(pbox->x2);
+	tmp[1] = trap->top;
+	ADD_VERTEX_IF_INSIDE(tmp);
+
+	/* Trap's bottom cut Left and Right of rect. */
+	if (DEBUG_CLIP_VTX)
+		ErrorF("Trap's bottom cut Left and Right of rect\n");
+	tmp[0] = IntToxFixed(pbox->x1);
+	tmp[1] = trap->bottom;
+	ADD_VERTEX_IF_INSIDE(tmp);
+	tmp[0] = IntToxFixed(pbox->x2);
+	tmp[1] = trap->bottom;
+	ADD_VERTEX_IF_INSIDE(tmp);
+
+	/* The orginal 4 vertex of rect. */
+	if (DEBUG_CLIP_VTX)
+		ErrorF("The orginal 4 vertex of rect\n");
+	tmp[0] = IntToxFixed(pbox->x1);
+	tmp[1] = IntToxFixed(pbox->y1);
+	ADD_VERTEX_IF_INSIDE(tmp);
+	tmp[0] = IntToxFixed(pbox->x1);
+	tmp[1] = IntToxFixed(pbox->y2);
+	ADD_VERTEX_IF_INSIDE(tmp);
+	tmp[0] = IntToxFixed(pbox->x2);
+	tmp[1] = IntToxFixed(pbox->y2);
+	ADD_VERTEX_IF_INSIDE(tmp);
+	tmp[0] = IntToxFixed(pbox->x2);
+	tmp[1] = IntToxFixed(pbox->y1);
+	ADD_VERTEX_IF_INSIDE(tmp);
+
+	if (DEBUG_CLIP_VTX) {
+		ErrorF("\nThe candidate vertex number is %d\n", vertex_num / 2);
+		for (i = 0; i < vertex_num / 2; i++) {
+			ErrorF("(%d, %d) ", tmp_vtx[2*i], tmp_vtx[2*i + 1]);
+		}
+		ErrorF("\n");
+	}
+
+	/* Sort the vertex by X and then Y. */
+	for (i = 0; i < vertex_num / 2; i++) {
+		int j;
+		for (j = 0; j < vertex_num / 2 - i - 1; j++) {
+			if (tmp_vtx[2*j] > tmp_vtx[2*(j+1)]
+			     || (tmp_vtx[2*j] == tmp_vtx[2*(j+1)]
+			         && tmp_vtx[2*j + 1] > tmp_vtx[2*(j+1) + 1])) {
+				tmp[0] = tmp_vtx[2*j];
+				tmp[1] = tmp_vtx[2*j + 1];
+				tmp_vtx[2*j] = tmp_vtx[2*(j+1)];
+				tmp_vtx[2*j + 1] = tmp_vtx[2*(j+1) + 1];
+				tmp_vtx[2*(j+1)] = tmp[0];
+				tmp_vtx[2*(j+1) + 1] = tmp[1];
+			}
+		}
+
+	}
+
+	if (DEBUG_CLIP_VTX) {
+		ErrorF("\nAfter sort vertex number is:\n");
+		for (i = 0; i < vertex_num / 2; i++) {
+			ErrorF("(%d, %d) ", tmp_vtx[2*i], tmp_vtx[2*i + 1]);
+		}
+		ErrorF("\n");
+	}
+
+	memset(vertex, -1, 2*6);
+	*num = 0;
+
+	for (i = 0; i < vertex_num / 2; i++) {
+		if (*num > 0 && vertex[2*(*num - 1)] == tmp_vtx[2*i]
+		     && vertex[2*(*num - 1) + 1] == tmp_vtx[2*i + 1]) {
+			/*same vertex.*/
+			if (DEBUG_CLIP_VTX)
+				ErrorF("X Point:(%d, %d) discard\n",
+				       tmp_vtx[2*i], tmp_vtx[2*i + 1]);
+			continue;
+		}
+
+		(*num)++;
+		if (*num > 6) {
+			if (DEBUG_CLIP_VTX)
+				FatalError("Trapezoid clip with Rect can never have vtx"
+				           "number bigger than 6\n");
+			else {
+				ErrorF("Trapezoid clip with Rect can never have vtx"
+				       "number bigger than 6\n");
+				*num = 6;
+				break;
+			}
+		}
+
+		vertex[2*(*num - 1)] = tmp_vtx[2*i];
+		vertex[2*(*num - 1) + 1] = tmp_vtx[2*i + 1];
+		if (DEBUG_CLIP_VTX)
+			ErrorF("@ Point:(%d, %d) select, num now is %d\n",
+			       tmp_vtx[2*i], tmp_vtx[2*i + 1], *num);
+	}
+
+	/* Now we need to arrange the vtx in the polygon's counter-clockwise
+	order. We first select the left and top point as the start point and
+	sort every vtx by the slope from vtx to the start vtx. */
+	for (i = 1; i < *num; i++) {
+		tmp_vtx_slope[i] = (vertex[2*i] != vertex[0] ?
+		                    (float)(vertex[2*i + 1] - vertex[1]) / (float)(vertex[2*i] - vertex[0])
+		                    : (float)INT_MAX);
+	}
+
+	if (DEBUG_CLIP_VTX) {
+		ErrorF("\nvtx number: %d, VTX and slope:\n", *num);
+		for (i = 0; i < *num; i++) {
+			ErrorF("(%d, %d):%f ",
+			       vertex[2*i], vertex[2*i + 1],
+			       tmp_vtx_slope[i]);
+		}
+		ErrorF("\n");
+	}
+
+	/* Sort the vertex by slope. */
+	for (i = 0; i < *num - 1; i++) {
+		int j;
+		float tmp_slope;
+		for (j = 1; j < *num - i - 1; j++) {
+			if (tmp_vtx_slope[j] < tmp_vtx_slope[j + 1]) {
+				tmp_slope = tmp_vtx_slope[j];
+				tmp_vtx_slope[j] = tmp_vtx_slope[j + 1];
+				tmp_vtx_slope[j + 1] = tmp_slope;
+				tmp[0] = vertex[2*j];
+				tmp[1] = vertex[2*j + 1];
+				vertex[2*j] = vertex[2*(j+1)];
+				vertex[2*j + 1] = vertex[2*(j+1) + 1];
+				vertex[2*(j+1)] = tmp[0];
+				vertex[2*(j+1) + 1] = tmp[1];
+			}
+		}
+	}
+
+	if (DEBUG_CLIP_VTX) {
+		ErrorF("\nBefore return, vtx number: %d, VTX and slope:\n", *num);
+		for (i = 0; i < *num; i++) {
+			ErrorF("(%d, %d):%f ",
+			       vertex[2*i], vertex[2*i + 1],
+			       tmp_vtx_slope[i]);
+		}
+		ErrorF("\n");
+	}
+
+	return TRUE;
+}
+
+static void
+glamor_setup_composite_vbo_for_trapezoid(ScreenPtr screen, int n_verts)
+{
+	glamor_screen_private *glamor_priv =
+	    glamor_get_screen_private(screen);
+	glamor_gl_dispatch *dispatch;
+	int stride;
+	int vert_size;
+
+	glamor_priv->render_nr_verts = 0;
+
+	/* For GLAMOR_VERTEX_POS */
+	glamor_priv->vb_stride = 2 * sizeof(float);
+
+	/* For GLAMOR_GLAMOR_VERTEX_SOURCE */
+	glamor_priv->vb_stride += 2 * sizeof(float);
+
+	/* For GLAMOR_VERTEX_TOP_BOTTOM */
+	glamor_priv->vb_stride += 2 * sizeof(float);
+
+	/* For GLAMOR_VERTEX_LEFT_PARAM */
+	glamor_priv->vb_stride += 4 * sizeof(float);
+
+	/* For GLAMOR_VERTEX_RIGHT_PARAM */
+	glamor_priv->vb_stride += 4 * sizeof(float);
+
+	vert_size = n_verts * glamor_priv->vb_stride;
+
+	dispatch = glamor_get_dispatch(glamor_priv);
+
+	dispatch->glDisableVertexAttribArray(GLAMOR_VERTEX_POS);
+	dispatch->glDisableVertexAttribArray(GLAMOR_VERTEX_SOURCE);
+	dispatch->glDisableVertexAttribArray(GLAMOR_VERTEX_TOP_BOTTOM);
+	dispatch->glDisableVertexAttribArray(GLAMOR_VERTEX_LEFT_PARAM);
+	dispatch->glDisableVertexAttribArray(GLAMOR_VERTEX_RIGHT_PARAM);
+
+	dispatch->glBindBuffer(GL_ARRAY_BUFFER, glamor_priv->vbo);
+	if (glamor_priv->gl_flavor == GLAMOR_GL_DESKTOP) {
+		if (glamor_priv->vbo_size < (glamor_priv->vbo_offset + vert_size)) {
+			glamor_priv->vbo_size = GLAMOR_COMPOSITE_VBO_VERT_CNT *
+				glamor_priv->vb_stride;
+			glamor_priv->vbo_offset = 0;
+			dispatch->glBufferData(GL_ARRAY_BUFFER,
+					       glamor_priv->vbo_size,
+					       NULL, GL_STREAM_DRAW);
+		}
+
+		glamor_priv->vb = dispatch->glMapBufferRange(GL_ARRAY_BUFFER,
+		                                             glamor_priv->vbo_offset,
+		                                             vert_size,
+		                                             GL_MAP_WRITE_BIT | GL_MAP_UNSYNCHRONIZED_BIT);
+
+		assert(glamor_priv->vb != NULL);
+		glamor_priv->vb -= glamor_priv->vbo_offset;
+	} else {
+		glamor_priv->vbo_offset = 0;
+	}
+
+	dispatch->glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, glamor_priv->ebo);
+
+	/* Set the vertex pointer. */
+	dispatch->glVertexAttribPointer(GLAMOR_VERTEX_POS, 2, GL_FLOAT,
+	        GL_FALSE, glamor_priv->vb_stride,
+	        (void *) ((long)glamor_priv->vbo_offset));
+	dispatch->glEnableVertexAttribArray(GLAMOR_VERTEX_POS);
+	stride = 2;
+
+	dispatch->glVertexAttribPointer(GLAMOR_VERTEX_SOURCE, 2, GL_FLOAT,
+	        GL_FALSE, glamor_priv->vb_stride,
+	        (void *) ((long)glamor_priv->vbo_offset + stride * sizeof(float)));
+	dispatch->glEnableVertexAttribArray(GLAMOR_VERTEX_SOURCE);
+	stride += 2;
+
+	dispatch->glVertexAttribPointer(GLAMOR_VERTEX_TOP_BOTTOM, 2, GL_FLOAT,
+	        GL_FALSE, glamor_priv->vb_stride,
+	        (void *) ((long)glamor_priv->vbo_offset + stride * sizeof(float)));
+	dispatch->glEnableVertexAttribArray(GLAMOR_VERTEX_TOP_BOTTOM);
+	stride += 2;
+
+	dispatch->glVertexAttribPointer(GLAMOR_VERTEX_LEFT_PARAM, 4, GL_FLOAT,
+	        GL_FALSE, glamor_priv->vb_stride,
+	        (void *) ((long)glamor_priv->vbo_offset + stride * sizeof(float)));
+	dispatch->glEnableVertexAttribArray(GLAMOR_VERTEX_LEFT_PARAM);
+	stride += 4;
+
+	dispatch->glVertexAttribPointer(GLAMOR_VERTEX_RIGHT_PARAM, 4, GL_FLOAT,
+	        GL_FALSE, glamor_priv->vb_stride,
+	        (void *) ((long)glamor_priv->vbo_offset + stride * sizeof(float)));
+	dispatch->glEnableVertexAttribArray(GLAMOR_VERTEX_RIGHT_PARAM);
+
+	glamor_put_dispatch(glamor_priv);
+}
+
+static Bool
+_glamor_trapezoids_with_shader(CARD8 op,
+        PicturePtr src, PicturePtr dst,
+        PictFormatPtr mask_format, INT16 x_src, INT16 y_src,
+        int ntrap, xTrapezoid * traps)
+{
+	ScreenPtr screen = dst->pDrawable->pScreen;
+	glamor_screen_private *glamor_priv = glamor_get_screen_private(screen);
+	struct shader_key key;
+	glamor_composite_shader *shader = NULL;
+	struct blendinfo op_info;
+	PictFormatShort saved_source_format = 0;
+	PixmapPtr source_pixmap = NULL;
+	PixmapPtr dest_pixmap = NULL;
+	glamor_pixmap_private *source_pixmap_priv = NULL;
+	glamor_pixmap_private *dest_pixmap_priv = NULL;
+	glamor_pixmap_private *temp_src_priv = NULL;
+	int x_temp_src, y_temp_src;
+	int src_width, src_height;
+	int source_x_off, source_y_off;
+	GLfloat src_xscale = 1, src_yscale = 1;
+	int x_dst, y_dst;
+	int dest_x_off, dest_y_off;
+	GLfloat dst_xscale, dst_yscale;
+	BoxRec bounds;
+	PicturePtr temp_src = src;
+	glamor_gl_dispatch *dispatch = NULL;
+	int vert_stride = 3;
+	int ntriangle_per_loop;
+	int nclip_rect;
+	int mclip_rect;
+	int clip_processed;
+	int clipped_vtx[6*2];
+	RegionRec region;
+	BoxPtr box = NULL;
+	BoxPtr pbox = NULL;
+	int traps_count = 0;
+	int traps_not_completed = 0;
+	xTrapezoid * ptrap = NULL;
+	int nbox;
+	float src_matrix[9];
+	Bool ret = FALSE;
+
+	/* If a mask format wasn't provided, we get to choose, but behavior should
+	 * be as if there was no temporary mask the traps were accumulated into.
+	 */
+	if (!mask_format) {
+		if (dst->polyEdge == PolyEdgeSharp)
+			mask_format = PictureMatchFormat(screen, 1, PICT_a1);
+		else
+			mask_format = PictureMatchFormat(screen, 8, PICT_a8);
+		for (; ntrap; ntrap--, traps++)
+			glamor_trapezoids(op, src, dst, mask_format, x_src,
+			                  y_src, 1, traps);
+		return TRUE;
+	}
+
+	miTrapezoidBounds(ntrap, traps, &bounds);
+	DEBUGF("The bounds for all traps is: bounds.x1 = %d, bounds.x2 = %d, "
+	       "bounds.y1 = %d, bounds.y2 = %d\n", bounds.x1, bounds.x2,
+	       bounds.y1, bounds.y2);
+
+	/* No area need to render. */
+	if (bounds.y1 >= bounds.y2 || bounds.x1 >= bounds.x2)
+		return TRUE;
+
+	dest_pixmap = glamor_get_drawable_pixmap(dst->pDrawable);
+	dest_pixmap_priv = glamor_get_pixmap_private(dest_pixmap);
+
+	if (!GLAMOR_PIXMAP_PRIV_HAS_FBO(dest_pixmap_priv)
+	    || dest_pixmap_priv->type == GLAMOR_TEXTURE_LARGE) {
+		/* Currently. Always fallback to cpu if destination is in CPU memory.*/
+		ret = FALSE;
+		DEBUGF("dst pixmap has no FBO.\n");
+		goto TRAPEZOID_OUT;
+	}
+
+	if (src->pDrawable) {
+		source_pixmap = glamor_get_drawable_pixmap(src->pDrawable);
+		source_pixmap_priv = glamor_get_pixmap_private(source_pixmap);
+		temp_src_priv = source_pixmap_priv;
+		if (source_pixmap_priv
+		    && (source_pixmap_priv->type == GLAMOR_DRM_ONLY
+		       || source_pixmap_priv->type == GLAMOR_TEXTURE_LARGE)) {
+			ret = FALSE;
+			goto TRAPEZOID_OUT;
+		}
+	}
+
+	x_dst = bounds.x1;
+	y_dst = bounds.y1;
+
+	src_width = bounds.x2 - bounds.x1;
+	src_height = bounds.y2 - bounds.y1;
+
+	x_temp_src = x_src + bounds.x1 - (traps[0].left.p1.x >> 16);
+	y_temp_src = y_src + bounds.y1 - (traps[0].left.p1.y >> 16);
+
+	if ((!src->pDrawable &&
+	     (src->pSourcePict->type != SourcePictTypeSolidFill)) //1. The Gradient case.
+	     /* 2. Has no fbo but can upload.*/
+	     || (src->pDrawable && !GLAMOR_PIXMAP_PRIV_HAS_FBO(source_pixmap_priv)
+	         && ((src_width * src_height * 4 <
+	              source_pixmap->drawable.width * source_pixmap->drawable.height)
+	             || !glamor_check_fbo_size(glamor_priv, source_pixmap->drawable.width,
+	                     source_pixmap->drawable.height)))) {
+
+		if (!glamor_check_fbo_size(glamor_priv, src_width, src_height)) {
+			ret = FALSE;
+			goto TRAPEZOID_OUT;
+		}
+		temp_src = glamor_convert_gradient_picture(screen, src,
+		           x_src, y_src,
+		           src_width, src_height);
+		if (!temp_src) {
+			temp_src = src;
+			ret = FALSE;
+			DEBUGF("Convert gradient picture failed\n");
+			goto TRAPEZOID_OUT;
+		}
+		temp_src_priv = glamor_get_pixmap_private((PixmapPtr)temp_src->pDrawable);
+		x_temp_src = y_temp_src = 0;
+	}
+
+	x_dst += dst->pDrawable->x;
+	y_dst += dst->pDrawable->y;
+	if (temp_src->pDrawable) {
+		x_temp_src += temp_src->pDrawable->x;
+		y_temp_src += temp_src->pDrawable->y;
+	}
+
+	if (!miComputeCompositeRegion(&region,
+	        temp_src, NULL, dst,
+	        x_temp_src, y_temp_src,
+	        0, 0,
+	        x_dst, y_dst,
+	        src_width, src_height)) {
+		DEBUGF("All the regions are clipped out, do nothing\n");
+		goto TRAPEZOID_OUT;
+	}
+
+	box = REGION_RECTS(&region);
+	nbox = REGION_NUM_RECTS(&region);
+	pbox = box;
+
+	ret = glamor_composite_choose_shader(op, temp_src, NULL, dst,
+					     temp_src_priv, NULL, dest_pixmap_priv,
+					     &key, &shader, &op_info, &saved_source_format);
+	if (ret == FALSE) {
+		DEBUGF("can not set the shader program for composite\n");
+		goto TRAPEZOID_RESET_GL;
+	}
+	glamor_set_destination_pixmap_priv_nc(dest_pixmap_priv);
+	glamor_composite_set_shader_blend(dest_pixmap_priv, &key, shader, &op_info);
+	glamor_priv->has_source_coords = key.source != SHADER_SOURCE_SOLID;
+	glamor_priv->has_mask_coords = (key.mask != SHADER_MASK_NONE &&
+	        key.mask != SHADER_MASK_SOLID);
+
+	dispatch = glamor_get_dispatch(glamor_priv);
+
+	glamor_get_drawable_deltas(dst->pDrawable, dest_pixmap,
+	        &dest_x_off, &dest_y_off);
+
+	pixmap_priv_get_dest_scale(dest_pixmap_priv, &dst_xscale, &dst_yscale);
+
+	if (glamor_priv->has_source_coords) {
+		source_pixmap = glamor_get_drawable_pixmap(temp_src->pDrawable);
+		source_pixmap_priv = glamor_get_pixmap_private(source_pixmap);
+		glamor_get_drawable_deltas(temp_src->pDrawable,
+		        source_pixmap,
+		        &source_x_off, &source_y_off);
+		pixmap_priv_get_scale(source_pixmap_priv,
+		        &src_xscale, &src_yscale);
+		glamor_picture_get_matrixf(temp_src, src_matrix);
+		vert_stride += 3;
+	}
+
+	if (glamor_priv->has_mask_coords) {
+		DEBUGF("Should never have mask coords here!\n");
+		ret = FALSE;
+		goto TRAPEZOID_RESET_GL;
+	}
+
+	/* A trapezoid clip with a rectangle will at most generate a hexagon,
+	   which can be devided	into 4 triangles to render. */
+	ntriangle_per_loop = (vert_stride * nbox * ntrap * 4) > GLAMOR_COMPOSITE_VBO_VERT_CNT ?
+	        (GLAMOR_COMPOSITE_VBO_VERT_CNT / vert_stride) : nbox * ntrap * 4;
+	ntriangle_per_loop = (ntriangle_per_loop / 4) * 4;
+
+	nclip_rect = nbox;
+	while (nclip_rect) {
+		mclip_rect = (nclip_rect * ntrap * 4) > ntriangle_per_loop ?
+		             (ntriangle_per_loop / (4 * ntrap)) : nclip_rect;
+
+		if (!mclip_rect) {/* Maybe too many traps. */
+			mclip_rect = 1;
+			ptrap = traps;
+			traps_count = ntriangle_per_loop / 4;
+			traps_not_completed = ntrap - traps_count;
+		} else {
+			traps_count = ntrap;
+			ptrap = traps;
+			traps_not_completed = 0;
+		}
+
+NTRAPS_LOOP_AGAIN:
+
+		glamor_setup_composite_vbo(screen,  mclip_rect * traps_count * 4 * vert_stride);
+		clip_processed = mclip_rect;
+
+
+		while (mclip_rect--) {
+			while (traps_count--) {
+				int vtx_num;
+				int i;
+				float vertices[3*2], source_texcoords[3*2];
+
+				DEBUGF("In loop of render trapezoid, nclip_rect = %d, mclip_rect = %d, "
+				       "clip_processed = %d, traps_count = %d, traps_not_completed = %d\n",
+				       nclip_rect, mclip_rect, clip_processed, traps_count, traps_not_completed);
+
+				if (_glamor_clip_trapezoid_vertex(ptrap, pbox, clipped_vtx, &vtx_num)) {
+					for (i = 0; i < vtx_num - 2; i++) {
+						int clipped_vtx_tmp[3*2];
+
+						clipped_vtx_tmp[0] = clipped_vtx[0];
+						clipped_vtx_tmp[1] = clipped_vtx[1];
+						clipped_vtx_tmp[2] = clipped_vtx[(i+1)*2];
+						clipped_vtx_tmp[3] = clipped_vtx[(i+1)*2 + 1];
+						clipped_vtx_tmp[4] = clipped_vtx[(i+2)*2];
+						clipped_vtx_tmp[5] = clipped_vtx[(i+2)*2 + 1];
+						glamor_set_normalize_tri_vcoords(
+						    dst_xscale, dst_yscale, clipped_vtx_tmp,
+						    glamor_priv->yInverted, vertices);
+						DEBUGF("vertices of triangle: (%f X %f), (%f X %f), "
+						       "(%f X %f)\n", vertices[0], vertices[1],
+						       vertices[2], vertices[3], vertices[4], vertices[5]);
+
+
+						if (key.source != SHADER_SOURCE_SOLID) {
+							if (src->transform) {
+								glamor_set_transformed_normalize_tri_tcoords(
+								    source_pixmap_priv,
+								    src_matrix, src_xscale, src_yscale,
+								    clipped_vtx_tmp,
+								    glamor_priv->yInverted,
+								    source_texcoords);
+							} else {
+								glamor_set_normalize_tri_tcoords(
+								    src_xscale, src_yscale,
+								    clipped_vtx_tmp,
+								    glamor_priv->yInverted,
+								    source_texcoords);
+							}
+
+							DEBUGF("source_texcoords of triangle: (%f X %f), "
+							       "(%f X %f), (%f X %f)\n",
+							       source_texcoords[0], source_texcoords[1],
+							       source_texcoords[2], source_texcoords[3],
+							       source_texcoords[4], source_texcoords[5]);
+						}
+
+						glamor_emit_composite_triangle(screen, source_texcoords,
+						        NULL, vertices);
+					}
+				}
+
+				ptrap++;
+			}
+
+			if (traps_not_completed) { /* one loop of ntraps not completed */
+				mclip_rect = 1;
+				traps_count = traps_not_completed > (ntriangle_per_loop / 4) ?
+				              (ntriangle_per_loop / 4) : traps_not_completed;
+				traps_not_completed -= traps_count;
+				glamor_flush_composite_triangles(screen);
+				goto NTRAPS_LOOP_AGAIN;
+			} else {
+				ptrap = traps;
+				traps_count = ntrap;
+			}
+
+			pbox++;
+		}
+
+		glamor_flush_composite_triangles(screen);
+
+		nclip_rect -= clip_processed;
+	}
+
+	ret = TRUE;
+
+TRAPEZOID_RESET_GL:
+	dispatch->glBindBuffer(GL_ARRAY_BUFFER, 0);
+	dispatch->glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
+	dispatch->glDisableVertexAttribArray(GLAMOR_VERTEX_POS);
+	dispatch->glDisableVertexAttribArray(GLAMOR_VERTEX_SOURCE);
+	dispatch->glDisableVertexAttribArray(GLAMOR_VERTEX_MASK);
+	dispatch->glDisable(GL_BLEND);
+#ifndef GLAMOR_GLES2
+	dispatch->glActiveTexture(GL_TEXTURE0);
+	dispatch->glDisable(GL_TEXTURE_2D);
+	dispatch->glActiveTexture(GL_TEXTURE1);
+	dispatch->glDisable(GL_TEXTURE_2D);
+#endif
+	dispatch->glUseProgram(0);
+
+TRAPEZOID_OUT:
+	if (box) {
+		REGION_UNINIT(dst->pDrawable->pScreen, &region);
+	}
+
+	if (temp_src != src) {
+		FreePicture(temp_src, 0);
+	} else {
+		if (saved_source_format) {
+			src->format = saved_source_format;
+		}
+	}
+
+	if (dispatch) {
+		glamor_put_dispatch(glamor_priv);
+	}
+
+	return ret;
+}
+
+void
+glamor_init_trapezoid_shader(ScreenPtr screen)
+{
+	glamor_screen_private *glamor_priv;
+	glamor_gl_dispatch *dispatch;
+	GLint fs_prog, vs_prog;
+
+	const char *trapezoid_vs =
+	    GLAMOR_DEFAULT_PRECISION
+	    "attribute vec4 v_position;\n"
+	    "attribute vec2 v_texcoord;\n"
+	    /* v_top_bottom, v_left_param and v_right_param contain the
+	       constant value for all the vertex of one rect. Using uniform
+	       is more suitable but we need to reset the uniform variables
+	       for every rect rendering and can not use the vbo, which causes
+	       performance loss. So we set these attributes to same value
+	       for every vertex of one rect and so it is also a constant in FS */
+	    "attribute vec2 v_top_bottom;\n"
+	    "attribute vec4 v_left_param;\n"
+	    "attribute vec4 v_right_param;\n"
+	    "\n"
+	    "varying vec2 source_texture;\n"
+	    "varying float trap_top;\n"
+	    "varying float trap_bottom;\n"
+	    "varying float trap_left_x;\n"
+	    "varying float trap_left_y;\n"
+	    "varying float trap_left_slope;\n"
+	    "varying float trap_left_vertical_f;\n"
+	    "varying float trap_right_x;\n"
+	    "varying float trap_right_y;\n"
+	    "varying float trap_right_slope;\n"
+	    "varying float trap_right_vertical_f;\n"
+	    "\n"
+	    "void main()\n"
+	    "{\n"
+	    "    gl_Position = v_position;\n"
+	    "    source_texture = v_texcoord.xy;\n"
+	    "    trap_top = v_top_bottom.x;\n"
+	    "    trap_bottom = v_top_bottom.y;\n"
+	    "    \n"
+	    "    trap_left_x = v_left_param.x;\n"
+	    "    trap_left_y = v_left_param.y;\n"
+	    "    trap_left_slope = v_left_param.z;\n"
+	    "    trap_left_vertical_f = v_left_param.w;\n"
+	    "    \n"
+	    "    trap_right_x = v_right_param.x;\n"
+	    "    trap_right_y = v_right_param.y;\n"
+	    "    trap_right_slope = v_right_param.z;\n"
+	    "    trap_right_vertical_f = v_right_param.w;\n"
+	    "}\n";
+
+	/*
+	 * Because some GL fill function do not support the MultSample
+	 * anti-alias, we need to do the MSAA here. This manner like
+	 * pixman, will caculate the value of area in trapezoid dividing
+	 * the totol area for each pixel, as follow:
+	     |
+	 ----+------------------------------------------------------>
+	     |
+	     |              -------------
+	     |             /             \
+	     |            /               \
+	     |           /                 \
+	     |          /              +----------------+
+	     |         /               |.....\          |
+	     |        /                |......\         |
+	     |       /                 |.......\        |
+	     |      /                  |........\       |
+	     |     /-------------------+---------\      |
+	     |                         |                |
+	     |                         |                |
+	     |                         +----------------+
+	     |
+	    \|/
+
+	 */
+	const char *trapezoid_fs =
+	    GLAMOR_DEFAULT_PRECISION
+	    "varying vec2 source_texture;  \n"
+	    "varying float trap_top;  \n"
+	    "varying float trap_bottom;  \n"
+	    "varying float trap_left_x;  \n"
+	    "varying float trap_left_y;  \n"
+	    "varying float trap_left_slope;  \n"
+	    "varying float trap_left_vertical_f;  \n"
+	    "varying float trap_right_x;  \n"
+	    "varying float trap_right_y;  \n"
+	    "varying float trap_right_slope;  \n"
+	    "varying float trap_right_vertical_f;  \n"
+	    "float x_per_pix = 1.0;"
+	    "float y_per_pix = 1.0;"
+	    "\n"
+	    "float get_alpha_val() \n"
+	    "{  \n"
+	    "    float x_up_cut_left;  \n"
+	    "    float x_bottom_cut_left;  \n"
+	    "    float x_up_cut_right;  \n"
+	    "    float x_bottom_cut_right;  \n"
+	    "    bool trap_left_vertical;\n"
+	    "    bool trap_right_vertical;\n"
+	    "	 if (abs(trap_left_vertical_f - 1.0) <= 0.0001)\n"
+	    "		trap_left_vertical = true;\n"
+	    "	 else\n"
+	    "		trap_left_vertical = false;\n"
+	    "	 if (abs(trap_right_vertical_f - 1.0) <= 0.0001)\n"
+	    "		trap_right_vertical = true;\n"
+	    "	 else\n"
+	    "		trap_right_vertical = false;\n"
+	    "    \n"
+	    "    if(trap_left_vertical == true) {  \n"
+	    "        x_up_cut_left = trap_left_x;  \n"
+	    "        x_bottom_cut_left = trap_left_x;  \n"
+	    "    } else {  \n"
+	    "        x_up_cut_left = trap_left_x  \n"
+	    "            + (source_texture.y - y_per_pix/2.0 - trap_left_y)  \n"
+	    "              / trap_left_slope;  \n"
+	    "        x_bottom_cut_left = trap_left_x  \n"
+	    "            + (source_texture.y + y_per_pix/2.0 - trap_left_y)  \n"
+	    "              / trap_left_slope;  \n"
+	    "    }  \n"
+	    "    \n"
+	    "    if(trap_right_vertical == true) {  \n"
+	    "        x_up_cut_right = trap_right_x;  \n"
+	    "        x_bottom_cut_right = trap_right_x;  \n"
+	    "    } else {  \n"
+	    "        x_up_cut_right = trap_right_x  \n"
+	    "            + (source_texture.y - y_per_pix/2.0 - trap_right_y)  \n"
+	    "              / trap_right_slope;  \n"
+	    "        x_bottom_cut_right = trap_right_x  \n"
+	    "            + (source_texture.y + y_per_pix/2.0 - trap_right_y)  \n"
+	    "              / trap_right_slope;  \n"
+	    "    }  \n"
+	    "    \n"
+	    "    if((x_up_cut_left <= source_texture.x - x_per_pix/2.0) &&  \n"
+	    "          (x_bottom_cut_left <= source_texture.x - x_per_pix/2.0) &&  \n"
+	    "          (x_up_cut_right >= source_texture.x + x_per_pix/2.0) &&  \n"
+	    "          (x_bottom_cut_right >= source_texture.x + x_per_pix/2.0) &&  \n"
+	    "          (trap_top <= source_texture.y - y_per_pix/2.0) &&  \n"
+	    "          (trap_bottom >= source_texture.y + y_per_pix/2.0)) {  \n"
+	    //       The complete inside case.
+	    "        return 1.0;  \n"
+	    "    } else if((trap_top > source_texture.y + y_per_pix/2.0) ||  \n"
+	    "                (trap_bottom < source_texture.y - y_per_pix/2.0)) {  \n"
+	    //       The complete outside. Above the top or Below the bottom.
+	    "        return 0.0;  \n"
+	    "    } else {  \n"
+	    "        if((x_up_cut_right < source_texture.x - x_per_pix/2.0 &&  \n"
+	    "                   x_bottom_cut_right < source_texture.x - x_per_pix/2.0)  \n"
+	    "            || (x_up_cut_left > source_texture.x + x_per_pix/2.0  &&  \n"
+	    "                   x_bottom_cut_left > source_texture.x + x_per_pix/2.0)) {  \n"
+	    //            The complete outside. At Left or Right of the trapezoide.
+	    "             return 0.0;  \n"
+	    "        }  \n"
+	    "    }  \n"
+	    //   Get here, the pix is partly inside the trapezoid.
+	    "    {  \n"
+	    "        float percent = 0.0;  \n"
+	    "        float up = (source_texture.y - y_per_pix/2.0) >= trap_top ?  \n"
+	    "                       (source_texture.y - y_per_pix/2.0) : trap_top;  \n"
+	    "        float bottom = (source_texture.y + y_per_pix/2.0) <= trap_bottom ?  \n"
+	    "                       (source_texture.y + y_per_pix/2.0) : trap_bottom;  \n"
+	    "        float left = source_texture.x - x_per_pix/2.0;  \n"
+	    "        float right = source_texture.x + x_per_pix/2.0;  \n"
+	    "        \n"
+	    "        percent = (bottom - up) / y_per_pix;  \n"
+	    "        \n"
+	    "	     if(trap_left_vertical == true) {  \n"
+	    "            if(trap_left_x > source_texture.x - x_per_pix/2.0 &&  \n"
+	    "                     trap_left_x < source_texture.x + x_per_pix/2.0)  \n"
+	    "                left = trap_left_x;  \n"
+	    "        }  \n"
+	    "	     if(trap_right_vertical == true) {  \n"
+	    "            if(trap_right_x > source_texture.x - x_per_pix/2.0 &&  \n"
+	    "                     trap_right_x < source_texture.x + x_per_pix/2.0)  \n"
+	    "                right = trap_right_x;  \n"
+	    "        }  \n"
+	    "        if((up >= bottom) || (left >= right))  \n"
+	    "            return 0.0;  \n"
+	    "        \n"
+	    "        percent = percent * ((right - left)/x_per_pix);  \n"
+	    "        if(trap_left_vertical == true && trap_right_vertical == true)  \n"
+	    "            return percent;  \n"
+	    "        \n"
+	    "        if(trap_left_vertical != true) {  \n"
+	    "            float area;  \n"
+	    //           the slope should never be 0.0 here
+	    "            float up_x = trap_left_x + (up - trap_left_y)/trap_left_slope;  \n"
+	    "            float bottom_x = trap_left_x + (bottom - trap_left_y)/trap_left_slope;  \n"
+	    "            if(trap_left_slope < 0.0 && up_x > left) {  \n"
+	    /*   case 1
+	         |
+	     ----+------------------------------------->
+	         |                 /
+	         |                /
+	         |           +---/--------+
+	         |           |  /.........|
+	         |           | /..........|
+	         |           |/...........|
+	         |           /............|
+	         |          /|............|
+	         |           +------------+
+	         |
+	        \|/
+	    */
+	    "                float left_y = trap_left_y + trap_left_slope*(left - trap_left_x);  \n"
+	    "                if((up_x > left) && (left_y > up)) {  \n"
+	    "                    area = 0.5 * (up_x - left) * (left_y - up);  \n"
+	    "                    if(up_x > right) {  \n"
+	    "                        float right_y = trap_left_y  \n"
+	    "                                  + trap_left_slope*(right - trap_left_x);  \n"
+	    "                        area = area - 0.5 * (up_x - right) * (right_y - up);  \n"
+	    "                    }  \n"
+	    "                    if(left_y > bottom) {  \n"
+	    "                        area = area - 0.5 * (bottom_x - left) * (left_y - bottom);  \n"
+	    "                    }  \n"
+	    "                } else {  \n"
+	    "                    area = 0.0;  \n"
+	    "                }  \n"
+	    "                percent = percent * (1.0 - (area/((right-left)*(bottom-up))));  \n"
+	    "            } else if(trap_left_slope > 0.0 && bottom_x > left) {  \n"
+	    /*   case 2
+	         |
+	     ----+------------------------------------->
+	         |          \
+	         |           \
+	         |           +\-----------+
+	         |           | \..........|
+	         |           |  \.........|
+	         |           |   \........|
+	         |           |    \.......|
+	         |           |     \......|
+	         |           +------\-----+
+	         |                   \
+	         |                    \
+	        \|/
+	    */
+	    "                float right_y = trap_left_y + trap_left_slope*(right - trap_left_x);  \n"
+	    "                if((up_x < right) && (right_y > up)) {  \n"
+	    "                    area = 0.5 * (right - up_x) * (right_y - up);  \n"
+	    "                    if(up_x < left) {  \n"
+	    "                        float left_y = trap_left_y  \n"
+	    "                                  + trap_left_slope*(left - trap_left_x);  \n"
+	    "                        area = area - 0.5 * (left - up_x) * (left_y - up);  \n"
+	    "                    }  \n"
+	    "                    if(right_y > bottom) {  \n"
+	    "                        area = area - 0.5 * (right - bottom_x) * (right_y - bottom);  \n"
+	    "                    }  \n"
+	    "                } else {  \n"
+	    "                    area = 0.0;  \n"
+	    "                }  \n"
+	    "                percent = percent * (area/((right-left)*(bottom-up)));  \n"
+	    "            }  \n"
+	    "        }  \n"
+	    "        \n"
+	    "        if(trap_right_vertical != true) {  \n"
+	    "            float area;  \n"
+	    //           the slope should never be 0.0 here
+	    "            float up_x = trap_right_x + (up - trap_right_y)/trap_right_slope;  \n"
+	    "            float bottom_x = trap_right_x + (bottom - trap_right_y)/trap_right_slope;  \n"
+	    "            if(trap_right_slope < 0.0 && bottom_x < right) {  \n"
+	    /*   case 3
+	         |
+	     ----+------------------------------------->
+	         |                     /
+	         |           +--------/---+
+	         |           |......./    |
+	         |           |....../     |
+	         |           |...../      |
+	         |           |..../       |
+	         |           |.../        |
+	         |           +--/---------+
+	         |             /
+	         |
+	        \|/
+	    */
+	    "                float left_y = trap_right_y + trap_right_slope*(left - trap_right_x);  \n"
+	    "                if((up_x > left) && (left_y > up)) {  \n"
+	    "                    area = 0.5 * (up_x - left) * (left_y - up);  \n"
+	    "                    if(up_x > right) {  \n"
+	    "                        float right_y = trap_right_y  \n"
+	    "                                  + trap_right_slope*(right - trap_right_x);  \n"
+	    "                        area = area - 0.5 * (up_x - right) * (right_y - up);  \n"
+	    "                    }  \n"
+	    "                    if(left_y > bottom) {  \n"
+	    "                        area = area - 0.5 * (bottom_x - left) * (left_y - bottom);  \n"
+	    "                    }  \n"
+	    "                } else {  \n"
+	    "                    area = 0.0;  \n"
+	    "                }  \n"
+	    "                percent = percent * (area/((right-left)*(bottom-up)));  \n"
+	    "            } else if(trap_right_slope > 0.0 && up_x < right) {  \n"
+	    /*   case 4
+	         |
+	     ----+------------------------------------->
+	         |                   \
+	         |           +--------\---+
+	         |           |.........\  |
+	         |           |..........\ |
+	         |           |...........\|
+	         |           |............\
+	         |           |............|\
+	         |           +------------+ \
+	         |                           \
+	         |
+	        \|/
+	    */
+	    "                float right_y = trap_right_y + trap_right_slope*(right - trap_right_x);  \n"
+	    "                if((up_x < right) && (right_y > up)) {  \n"
+	    "                    area = 0.5 * (right - up_x) * (right_y - up);  \n"
+	    "                    if(up_x < left) {  \n"
+	    "                        float left_y = trap_right_y  \n"
+	    "                                  + trap_right_slope*(left - trap_right_x);  \n"
+	    "                        area = area - 0.5 * (left - up_x) * (left_y - up);  \n"
+	    "                    }  \n"
+	    "                    if(right_y > bottom) {  \n"
+	    "                        area = area - 0.5 * (right - bottom_x) * (right_y - bottom);  \n"
+	    "                    }  \n"
+	    "                } else {  \n"
+	    "                    area = 0.0;  \n"
+	    "                }  \n"
+	    "                percent = percent * (1.0 - (area/((right-left)*(bottom-up))));  \n"
+	    "            }  \n"
+	    "        }  \n"
+	    "        \n"
+	    "        return percent;  \n"
+	    "    }  \n"
+	    "}  \n"
+	    "\n"
+	    "void main()  \n"
+	    "{  \n"
+	    "    float alpha_val = get_alpha_val();  \n"
+	    "    gl_FragColor = vec4(0.0, 0.0, 0.0, alpha_val);  \n"
+	    "}\n";
+
+	glamor_priv = glamor_get_screen_private(screen);
+	dispatch = glamor_get_dispatch(glamor_priv);
+
+	glamor_priv->trapezoid_prog = dispatch->glCreateProgram();
+
+	vs_prog = glamor_compile_glsl_prog(dispatch,
+	                  GL_VERTEX_SHADER, trapezoid_vs);
+	fs_prog = glamor_compile_glsl_prog(dispatch,
+	                  GL_FRAGMENT_SHADER, trapezoid_fs);
+
+	dispatch->glAttachShader(glamor_priv->trapezoid_prog, vs_prog);
+	dispatch->glAttachShader(glamor_priv->trapezoid_prog, fs_prog);
+
+	dispatch->glBindAttribLocation(glamor_priv->trapezoid_prog,
+	        GLAMOR_VERTEX_POS, "v_positionsition");
+	dispatch->glBindAttribLocation(glamor_priv->trapezoid_prog,
+	        GLAMOR_VERTEX_SOURCE, "v_texcoord");
+	dispatch->glBindAttribLocation(glamor_priv->trapezoid_prog,
+	        GLAMOR_VERTEX_TOP_BOTTOM, "v_top_bottom");
+	dispatch->glBindAttribLocation(glamor_priv->trapezoid_prog,
+	        GLAMOR_VERTEX_LEFT_PARAM, "v_left_param");
+	dispatch->glBindAttribLocation(glamor_priv->trapezoid_prog,
+	        GLAMOR_VERTEX_RIGHT_PARAM, "v_right_param");
+
+	glamor_link_glsl_prog(dispatch, glamor_priv->trapezoid_prog);
+
+	dispatch->glUseProgram(0);
+
+	glamor_put_dispatch(glamor_priv);
+}
+
+void
+glamor_fini_trapezoid_shader(ScreenPtr screen)
+{
+	glamor_screen_private *glamor_priv;
+	glamor_gl_dispatch *dispatch;
+
+	glamor_priv = glamor_get_screen_private(screen);
+	dispatch = glamor_get_dispatch(glamor_priv);
+	dispatch->glDeleteProgram(glamor_priv->trapezoid_prog);
+	glamor_put_dispatch(glamor_priv);
+}
+
+static Bool
+_glamor_generate_trapezoid_with_shader(ScreenPtr screen, PicturePtr picture,
+        xTrapezoid * traps, int ntrap, BoxRec *bounds)
+{
+	glamor_screen_private *glamor_priv;
+	glamor_gl_dispatch *dispatch;
+	glamor_pixmap_private *pixmap_priv;
+	PixmapPtr pixmap = NULL;
+	GLint trapezoid_prog;
+	GLfloat xscale, yscale;
+	float left_slope, right_slope;
+	xTrapezoid *ptrap;
+	BoxRec one_trap_bound;
+	int nrect_max;
+	int i, j;
+	float *vertices;
+	float params[4];
+
+	glamor_priv = glamor_get_screen_private(screen);
+	trapezoid_prog = glamor_priv->trapezoid_prog;
+
+	pixmap = glamor_get_drawable_pixmap(picture->pDrawable);
+	pixmap_priv = glamor_get_pixmap_private(pixmap);
+
+	if (!GLAMOR_PIXMAP_PRIV_HAS_FBO(pixmap_priv)
+	     || pixmap_priv->type == GLAMOR_TEXTURE_LARGE) { /* should always have here. */
+		DEBUGF("GLAMOR_PIXMAP_PRIV_HAS_FBO check failed, fallback\n");
+		return FALSE;
+	}
+
+	/* First, clear all to zero */
+	if (!glamor_solid(pixmap, 0, 0, pixmap_priv->base.pixmap->drawable.width,
+	                  pixmap_priv->base.pixmap->drawable.height,
+	                  GXclear, 0xFFFFFFFF, 0)) {
+		DEBUGF("glamor_solid failed, fallback\n");
+		return FALSE;
+	}
+
+	dispatch = glamor_get_dispatch(glamor_priv);
+
+	glamor_set_destination_pixmap_priv_nc(pixmap_priv);
+
+	pixmap_priv_get_dest_scale(pixmap_priv, (&xscale), (&yscale));
+
+	dispatch->glBindBuffer(GL_ARRAY_BUFFER, 0);
+	dispatch->glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
+
+	/* Now draw the Trapezoid mask. */
+	dispatch->glUseProgram(trapezoid_prog);
+
+	dispatch->glEnable(GL_BLEND);
+	dispatch->glBlendFunc(GL_ONE, GL_ONE);
+
+	nrect_max = GLAMOR_COMPOSITE_VBO_VERT_CNT / (4 * GLAMOR_VERTEX_RIGHT_PARAM);
+
+	for (i = 0; i < ntrap;) {
+		int mrect;
+		int stride;
+
+		mrect = (ntrap - i) > nrect_max ? nrect_max : (ntrap - i);
+		glamor_setup_composite_vbo_for_trapezoid(screen, 4 * mrect);
+		stride = glamor_priv->vb_stride / sizeof(float);
+
+		for (j = 0; j < mrect; j++) {
+			ptrap = traps + i + j;
+
+			DEBUGF("--- The parameter of xTrapezoid is:\ntop: %d  0x%x\tbottom: %d  0x%x\n"
+			       "left:  p1 (%d   0x%x, %d   0x%x)\tp2 (%d   0x%x, %d   0x%x)\n"
+			       "right: p1 (%d   0x%x, %d   0x%x)\tp2 (%d   0x%x, %d   0x%x)\n",
+			       xFixedToInt(ptrap->top), ptrap->top,
+			       xFixedToInt(ptrap->bottom), ptrap->bottom,
+			       xFixedToInt(ptrap->left.p1.x), ptrap->left.p1.x,
+			       xFixedToInt(ptrap->left.p1.y), ptrap->left.p1.y,
+			       xFixedToInt(ptrap->left.p2.x), ptrap->left.p2.x,
+			       xFixedToInt(ptrap->left.p2.y), ptrap->left.p2.y,
+			       xFixedToInt(ptrap->right.p1.x), ptrap->right.p1.x,
+			       xFixedToInt(ptrap->right.p1.y), ptrap->right.p1.y,
+			       xFixedToInt(ptrap->right.p2.x), ptrap->right.p2.x,
+			       xFixedToInt(ptrap->right.p2.y), ptrap->right.p2.y);
+
+			miTrapezoidBounds(1, ptrap, &one_trap_bound);
+
+			vertices = (float*)(glamor_priv->vb + glamor_priv->vbo_offset) + 2;
+			glamor_set_tcoords_ext((pixmap_priv->base.pixmap->drawable.width),
+			        (pixmap_priv->base.pixmap->drawable.height),
+			        (one_trap_bound.x1),
+			        (one_trap_bound.y1),
+			        (one_trap_bound.x2),
+			        (one_trap_bound.y2),
+			        glamor_priv->yInverted, vertices, stride);
+			DEBUGF("tex_vertices --> leftup : %f X %f, rightup: %f X %f,"
+			       "rightbottom: %f X %f, leftbottom : %f X %f\n",
+			       vertices[0], vertices[1],
+			       vertices[1*stride], vertices[1*stride + 1],
+			       vertices[2*stride], vertices[2*stride + 1],
+			       vertices[3*stride], vertices[3*stride + 1]);
+
+			/* Need to rebase. */
+			one_trap_bound.x1 -= bounds->x1;
+			one_trap_bound.x2 -= bounds->x1;
+			one_trap_bound.y1 -= bounds->y1;
+			one_trap_bound.y2 -= bounds->y1;
+
+			vertices -= 2;
+
+			glamor_set_normalize_vcoords_ext(pixmap_priv, xscale, yscale,
+			        one_trap_bound.x1, one_trap_bound.y1,
+			        one_trap_bound.x2, one_trap_bound.y2,
+			        glamor_priv->yInverted, vertices, stride);
+			DEBUGF("vertices --> leftup : %f X %f, rightup: %f X %f,"
+			       "rightbottom: %f X %f, leftbottom : %f X %f\n",
+			       vertices[0], vertices[1],
+			       vertices[1*stride], vertices[1*stride + 1],
+			       vertices[2*stride], vertices[2*stride + 1],
+			       vertices[3*stride], vertices[3*stride + 1]);
+			vertices += 4;
+
+			/* Set the top and bottom. */
+			params[0] = ((float)ptrap->top) / 65536;
+			params[1] = ((float)ptrap->bottom) / 65536;
+			glamor_set_const_ext(params, 2, vertices, 4, stride);
+			vertices += 2;
+
+			/* Set the left params. */
+			params[0] = ((float)ptrap->left.p1.x) / 65536;
+			params[1] = ((float)ptrap->left.p1.y) / 65536;
+
+			if (ptrap->left.p1.x == ptrap->left.p2.x) {
+				left_slope = 0.0;
+				params[3] = 1.0;
+			} else {
+				left_slope = ((float)(ptrap->left.p1.y - ptrap->left.p2.y))
+				             / ((float)(ptrap->left.p1.x - ptrap->left.p2.x));
+				params[3] = 0.0;
+			}
+			params[2] = left_slope;
+			glamor_set_const_ext(params, 4, vertices, 4, stride);
+			vertices += 4;
+
+			/* Set the left params. */
+			params[0] = ((float)ptrap->right.p1.x) / 65536;
+			params[1] = ((float)ptrap->right.p1.y) / 65536;
+
+			if (ptrap->right.p1.x == ptrap->right.p2.x) {
+				right_slope = 0.0;
+				params[3] = 1.0;
+			} else {
+				right_slope = ((float)(ptrap->right.p1.y - ptrap->right.p2.y))
+				              / ((float)(ptrap->right.p1.x - ptrap->right.p2.x));
+				params[3] = 0.0;
+			}
+			params[2] = right_slope;
+			glamor_set_const_ext(params, 4, vertices, 4, stride);
+
+			DEBUGF("trap_top = %f, trap_bottom = %f, "
+			       "trap_left_x = %f, trap_left_y = %f, left_slope = %f, "
+			       "trap_right_x = %f, trap_right_y = %f, right_slope = %f\n",
+			       ((float)ptrap->top) / 65536, ((float)ptrap->bottom) / 65536,
+			       ((float)ptrap->left.p1.x) / 65536, ((float)ptrap->left.p1.y) / 65536,
+			       left_slope,
+			       ((float)ptrap->right.p1.x) / 65536, ((float)ptrap->right.p1.y) / 65536,
+			       right_slope);
+
+			glamor_priv->render_nr_verts += 4;
+			glamor_priv->vbo_offset += glamor_priv->vb_stride * 4;
+		}
+
+		i += mrect;
+
+		/* Now rendering. */
+		if (!glamor_priv->render_nr_verts)
+			continue;
+
+		if (glamor_priv->gl_flavor == GLAMOR_GL_DESKTOP)
+			dispatch->glUnmapBuffer(GL_ARRAY_BUFFER);
+		else {
+			dispatch->glBindBuffer(GL_ARRAY_BUFFER, glamor_priv->vbo);
+			dispatch->glBufferData(GL_ARRAY_BUFFER,
+			        glamor_priv->vbo_offset,
+			        glamor_priv->vb, GL_DYNAMIC_DRAW);
+		}
+
+#ifndef GLAMOR_GLES2
+		dispatch->glDrawRangeElements(GL_TRIANGLES, 0, glamor_priv->render_nr_verts,
+			(glamor_priv->render_nr_verts * 3) / 2,
+		        GL_UNSIGNED_SHORT, NULL);
+#else
+		dispatch->glDrawElements(GL_TRIANGLES, (glamor_priv->render_nr_verts * 3) / 2,
+		        GL_UNSIGNED_SHORT, NULL);
+#endif
+	}
+
+	dispatch->glBindBuffer(GL_ARRAY_BUFFER, 0);
+	dispatch->glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
+	dispatch->glBlendFunc(GL_ONE, GL_ZERO);
+	dispatch->glDisable(GL_BLEND);
+	dispatch->glDisableVertexAttribArray(GLAMOR_VERTEX_POS);
+	dispatch->glDisableVertexAttribArray(GLAMOR_VERTEX_SOURCE);
+	dispatch->glDisableVertexAttribArray(GLAMOR_VERTEX_TOP_BOTTOM);
+	dispatch->glDisableVertexAttribArray(GLAMOR_VERTEX_LEFT_PARAM);
+	dispatch->glDisableVertexAttribArray(GLAMOR_VERTEX_RIGHT_PARAM);
+	dispatch->glUseProgram(0);
+	glamor_put_dispatch(glamor_priv);
+	return TRUE;
+}
+
+#endif                           /*GLAMOR_TRAPEZOID_SHADER */
+
+/**
+ * Creates an appropriate picture for temp mask use.
+ */
+static PicturePtr
+glamor_create_mask_picture(ScreenPtr screen,
+        PicturePtr dst,
+        PictFormatPtr pict_format,
+        CARD16 width, CARD16 height, int gpu)
+{
+	PixmapPtr pixmap;
+	PicturePtr picture;
+	int error;
+
+	if (!pict_format) {
+		if (dst->polyEdge == PolyEdgeSharp)
+			pict_format =
+			    PictureMatchFormat(screen, 1, PICT_a1);
+		else
+			pict_format =
+			    PictureMatchFormat(screen, 8, PICT_a8);
+		if (!pict_format)
+			return 0;
+	}
+
+	if (gpu) {
+		pixmap = glamor_create_pixmap(screen, width, height,
+		         pict_format->depth, 0);
+	} else {
+		pixmap = glamor_create_pixmap(screen, 0, 0,
+		         pict_format->depth,
+		         GLAMOR_CREATE_PIXMAP_CPU);
+	}
+
+	if (!pixmap)
+		return 0;
+	picture = CreatePicture(0, &pixmap->drawable, pict_format,
+	                        0, 0, serverClient, &error);
+	glamor_destroy_pixmap(pixmap);
+	return picture;
+}
+
+static int
+_glamor_trapezoid_bounds (int ntrap, xTrapezoid *traps, BoxPtr box)
+{
+	int has_large_trapezoid = 0;
+	box->y1 = MAXSHORT;
+	box->y2 = MINSHORT;
+	box->x1 = MAXSHORT;
+	box->x2 = MINSHORT;
+
+	for (; ntrap; ntrap--, traps++) {
+		INT16 x1, y1, x2, y2;
+
+		if (!xTrapezoidValid(traps))
+			continue;
+		y1 = xFixedToInt (traps->top);
+		if (y1 < box->y1)
+			box->y1 = y1;
+
+		y2 = xFixedToInt (xFixedCeil (traps->bottom));
+		if (y2 > box->y2)
+			box->y2 = y2;
+
+		x1 = xFixedToInt (min (_glamor_linefixedX (&traps->left, traps->top, FALSE),
+		                  _glamor_linefixedX (&traps->left, traps->bottom, FALSE)));
+		if (x1 < box->x1)
+			box->x1 = x1;
+
+		x2 = xFixedToInt (xFixedCeil (max (_glamor_linefixedX (&traps->right, traps->top, TRUE),
+		                  _glamor_linefixedX (&traps->right, traps->bottom, TRUE))));
+		if (x2 > box->x2)
+			box->x2 = x2;
+
+		if (!has_large_trapezoid && (x2 - x1) > 256 && (y2 - y1) > 32)
+			has_large_trapezoid = 1;
+	}
+
+	return has_large_trapezoid;
+}
+
+/**
+ * glamor_trapezoids will first try to create a trapezoid mask using shader,
+ * if failed, miTrapezoids will generate trapezoid mask accumulating in
+ * system memory.
+ */
+static Bool
+_glamor_trapezoids(CARD8 op,
+                   PicturePtr src, PicturePtr dst,
+                   PictFormatPtr mask_format, INT16 x_src, INT16 y_src,
+                   int ntrap, xTrapezoid * traps, Bool fallback)
+{
+	ScreenPtr screen = dst->pDrawable->pScreen;
+	BoxRec bounds;
+	PicturePtr picture;
+	INT16 x_dst, y_dst;
+	INT16 x_rel, y_rel;
+	int width, height, stride;
+	PixmapPtr pixmap;
+	pixman_image_t *image = NULL;
+	int ret = 0;
+	int has_large_trapezoid;
+
+	/* If a mask format wasn't provided, we get to choose, but behavior should
+	 * be as if there was no temporary mask the traps were accumulated into.
+	 */
+	if (!mask_format) {
+		if (dst->polyEdge == PolyEdgeSharp)
+			mask_format =
+			    PictureMatchFormat(screen, 1, PICT_a1);
+		else
+			mask_format =
+			    PictureMatchFormat(screen, 8, PICT_a8);
+		for (; ntrap; ntrap--, traps++)
+			glamor_trapezoids(op, src, dst, mask_format, x_src,
+			                  y_src, 1, traps);
+		return TRUE;
+	}
+
+	has_large_trapezoid = _glamor_trapezoid_bounds(ntrap, traps, &bounds);
+	DEBUGF("The bounds for all traps is: bounds.x1 = %d, bounds.x2 = %d, "
+	       "bounds.y1 = %d, bounds.y2 = %d, ---- ntrap = %d\n", bounds.x1,
+	       bounds.x2, bounds.y1, bounds.y2, ntrap);
+
+	if (bounds.y1 >= bounds.y2 || bounds.x1 >= bounds.x2)
+		return TRUE;
+
+	x_dst = traps[0].left.p1.x >> 16;
+	y_dst = traps[0].left.p1.y >> 16;
+
+	width = bounds.x2 - bounds.x1;
+	height = bounds.y2 - bounds.y1;
+	stride = PixmapBytePad(width, mask_format->depth);
+
+#ifdef GLAMOR_TRAPEZOID_SHADER
+	/* We seperate the render to two paths.
+	   Some GL implemetation do not implement the Anti-Alias for triangles
+	   and polygen's filling. So when the edge is not vertical or horizontal,
+	   sawtooth will be obvious. The trapezoid is widely used to render wide
+	   lines and circles. In these case, the line or circle will be divided
+	   into a large number of small trapezoids to approximate it, so the sawtooth
+	   at the edge will cause the result not be acceptable.
+	   When the depth of the mask is 1, there is no Anti-Alias needed, so we
+	   use the clip logic to generate the result directly(fast path).
+	   When the depth is not 1, AA is needed and we use a shader to generate
+	   a temp mask pixmap.
+	 */
+	if (mask_format->depth == 1) {
+		ret = _glamor_trapezoids_with_shader(op, src, dst, mask_format,
+		                                     x_src, y_src, ntrap, traps);
+		if(ret)
+			return TRUE;
+	} else {
+		if (has_large_trapezoid || ntrap > 256) {
+			/* The shader speed is relative slower than pixman when generating big chunk
+			   trapezoid mask. We fallback to pixman to improve the performance. */
+			;
+		} else if (dst->polyMode == PolyModeImprecise) {
+			/*  The precise mode is that we sample the trapezoid on the centre points of
+			    an (2*n+1)x(2*n-1) subpixel grid. It is computationally expensive in shader
+			    and we use inside area ratio to replace it if the polymode == Imprecise. */
+			picture = glamor_create_mask_picture(screen, dst, mask_format,
+			          width, height, 1);
+			if (!picture)
+				return TRUE;
+
+			ret = _glamor_generate_trapezoid_with_shader(screen, picture, traps, ntrap, &bounds);
+
+			if (!ret)
+				FreePicture(picture, 0);
+		}
+	}
+#endif
+
+	if (!ret) {
+		DEBUGF("Fallback to sw rasterize of trapezoid\n");
+
+		picture = glamor_create_mask_picture(screen, dst, mask_format,
+		          width, height, 0);
+		if (!picture)
+			return TRUE;
+
+		image = pixman_image_create_bits(picture->format,
+		        width, height, NULL, stride);
+		if (!image) {
+			FreePicture(picture, 0);
+			return TRUE;
+		}
+
+		for (; ntrap; ntrap--, traps++)
+			pixman_rasterize_trapezoid(image,
+			        (pixman_trapezoid_t *) traps,
+			        -bounds.x1, -bounds.y1);
+
+		pixmap = glamor_get_drawable_pixmap(picture->pDrawable);
+
+		screen->ModifyPixmapHeader(pixmap, width, height,
+		        mask_format->depth,
+		        BitsPerPixel(mask_format->depth),
+		        PixmapBytePad(width,
+		                      mask_format->depth),
+		        pixman_image_get_data(image));
+	}
+
+	x_rel = bounds.x1 + x_src - x_dst;
+	y_rel = bounds.y1 + y_src - y_dst;
+	DEBUGF("x_src = %d, y_src = %d, x_dst = %d, y_dst = %d, "
+	       "x_rel = %d, y_rel = %d\n", x_src, y_src, x_dst,
+	       y_dst, x_rel, y_rel);
+
+	CompositePicture(op, src, picture, dst,
+	                 x_rel, y_rel,
+	                 0, 0,
+	                 bounds.x1, bounds.y1,
+	                 bounds.x2 - bounds.x1, bounds.y2 - bounds.y1);
+
+	if (image)
+		pixman_image_unref(image);
+
+	FreePicture(picture, 0);
+	return TRUE;
+}
+
+void
+glamor_trapezoids(CARD8 op,
+                  PicturePtr src, PicturePtr dst,
+                  PictFormatPtr mask_format, INT16 x_src, INT16 y_src,
+                  int ntrap, xTrapezoid * traps)
+{
+	DEBUGF("x_src = %d, y_src = %d, ntrap = %d\n", x_src, y_src, ntrap);
+
+	_glamor_trapezoids(op, src, dst, mask_format, x_src,
+	                   y_src, ntrap, traps, TRUE);
+}
+
+Bool
+glamor_trapezoids_nf(CARD8 op,
+        PicturePtr src, PicturePtr dst,
+        PictFormatPtr mask_format, INT16 x_src, INT16 y_src,
+        int ntrap, xTrapezoid * traps)
+{
+	DEBUGF("x_src = %d, y_src = %d, ntrap = %d\n", x_src, y_src, ntrap);
+
+	return _glamor_trapezoids(op, src, dst, mask_format, x_src,
+	        y_src, ntrap, traps, FALSE);
+}
+
+#endif				/* RENDER */
+
diff --git a/glamor/glamor_triangles.c b/glamor/glamor_triangles.c
new file mode 100644
index 000000000..e0f4a9708
--- /dev/null
+++ b/glamor/glamor_triangles.c
@@ -0,0 +1,80 @@
+/*
+ * Copyright © 2009 Intel Corporation
+ * Copyright © 1998 Keith Packard
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ *
+ * Authors:
+ *    Zhigang Gong <zhigang.gong@gmail.com>
+ *
+ */
+
+#include "glamor_priv.h"
+
+static Bool
+_glamor_triangles(CARD8 op,
+		 PicturePtr pSrc,
+		 PicturePtr pDst,
+		 PictFormatPtr maskFormat,
+		 INT16 xSrc, INT16 ySrc, int ntris, xTriangle * tris, Bool fallback)
+{
+	if (!fallback
+	    && glamor_ddx_fallback_check_pixmap(pDst->pDrawable)
+	    && (!pSrc->pDrawable
+		|| glamor_ddx_fallback_check_pixmap(pSrc->pDrawable)))
+		return FALSE;
+
+	if (glamor_prepare_access_picture(pDst, GLAMOR_ACCESS_RW)) {
+		if (glamor_prepare_access_picture(pSrc,
+						  GLAMOR_ACCESS_RO)) {
+
+			fbTriangles(op, pSrc, pDst, maskFormat, xSrc,
+				    ySrc, ntris, tris);
+
+			glamor_finish_access_picture(pSrc, GLAMOR_ACCESS_RO);
+		}
+
+		glamor_finish_access_picture(pDst, GLAMOR_ACCESS_RW);
+	}
+	return TRUE;
+}
+
+void
+glamor_triangles(CARD8 op,
+		 PicturePtr pSrc,
+		 PicturePtr pDst,
+		 PictFormatPtr maskFormat,
+		 INT16 xSrc, INT16 ySrc, int ntris, xTriangle * tris)
+{
+	_glamor_triangles(op, pSrc, pDst, maskFormat, 
+			  xSrc, ySrc, ntris, tris, TRUE);
+}
+
+Bool
+glamor_triangles_nf(CARD8 op,
+		    PicturePtr pSrc,
+		    PicturePtr pDst,
+		    PictFormatPtr maskFormat,
+		    INT16 xSrc, INT16 ySrc, int ntris, xTriangle * tris)
+{
+	return _glamor_triangles(op, pSrc, pDst, maskFormat, 
+				 xSrc, ySrc, ntris, tris, FALSE);
+}
+
diff --git a/glamor/glamor_utils.h b/glamor/glamor_utils.h
new file mode 100644
index 000000000..d30783826
--- /dev/null
+++ b/glamor/glamor_utils.h
@@ -0,0 +1,1835 @@
+/*
+ * Copyright © 2009 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ *
+ * Authors:
+ *    Zhigang Gong <zhigang.gong@linux.intel.com>
+ *
+ */
+
+#ifndef GLAMOR_PRIV_H
+#error This file can only be included by glamor_priv.h
+#endif
+
+#ifndef __GLAMOR_UTILS_H__
+#define __GLAMOR_UTILS_H__
+
+#define v_from_x_coord_x(_xscale_, _x_)          ( 2 * (_x_) * (_xscale_) - 1.0)
+#define v_from_x_coord_y(_yscale_, _y_)          (-2 * (_y_) * (_yscale_) + 1.0)
+#define v_from_x_coord_y_inverted(_yscale_, _y_) (2 * (_y_) * (_yscale_) - 1.0)
+#define t_from_x_coord_x(_xscale_, _x_)          ((_x_) * (_xscale_))
+#define t_from_x_coord_y(_yscale_, _y_)          (1.0 - (_y_) * (_yscale_))
+#define t_from_x_coord_y_inverted(_yscale_, _y_) ((_y_) * (_yscale_))
+
+#define pixmap_priv_get_dest_scale(_pixmap_priv_, _pxscale_, _pyscale_)  \
+  do {                                                                   \
+    int _w_,_h_;                                                         \
+    PIXMAP_PRIV_GET_ACTUAL_SIZE(_pixmap_priv_, _w_, _h_);                \
+    *(_pxscale_) = 1.0 / _w_;                                            \
+    *(_pyscale_) = 1.0 / _h_;                                            \
+   } while(0)
+
+#define pixmap_priv_get_scale(_pixmap_priv_, _pxscale_, _pyscale_)	\
+   do {									\
+    *(_pxscale_) = 1.0 / (_pixmap_priv_)->base.fbo->width;			\
+    *(_pyscale_) = 1.0 / (_pixmap_priv_)->base.fbo->height;			\
+  } while(0)
+
+#define GLAMOR_PIXMAP_FBO_NOT_EAXCT_SIZE(priv)			\
+   (priv->base.fbo->width != priv->base.pixmap->drawable.width 	\
+      || priv->base.fbo->height != priv->base.pixmap->drawable.height)	\
+
+#define PIXMAP_PRIV_GET_ACTUAL_SIZE(priv, w, h)			\
+  do {								\
+	if (unlikely(priv->type == GLAMOR_TEXTURE_LARGE)) {		\
+		w = priv->large.box.x2 - priv->large.box.x1;	\
+		h = priv->large.box.y2 - priv->large.box.y1;	\
+	} else {						\
+		w = priv->base.pixmap->drawable.width;		\
+		h = priv->base.pixmap->drawable.height;		\
+	}							\
+  } while(0)
+
+#define glamor_pixmap_fbo_fix_wh_ratio(wh, priv)  		\
+  do {								\
+	int actual_w, actual_h;					\
+	PIXMAP_PRIV_GET_ACTUAL_SIZE(priv, actual_w, actual_h);	\
+	wh[0] = (float)priv->base.fbo->width / actual_w;	\
+	wh[1] = (float)priv->base.fbo->height / actual_h;	\
+	wh[2] = 1.0 / priv->base.fbo->width;			\
+	wh[3] = 1.0 / priv->base.fbo->height;			\
+  } while(0)
+
+#define pixmap_priv_get_fbo_off(_priv_, _xoff_, _yoff_)		\
+   do {								\
+	if (unlikely(_priv_ && (_priv_)->type == GLAMOR_TEXTURE_LARGE)) {  \
+		*(_xoff_) = - (_priv_)->large.box.x1;	\
+		*(_yoff_) = - (_priv_)->large.box.y1;	\
+	} else {						\
+		*(_xoff_) = 0;					\
+		*(_yoff_) = 0;					\
+	}							\
+   } while(0)
+
+#define xFixedToFloat(_val_) ((float)xFixedToInt(_val_)			\
+			      + ((float)xFixedFrac(_val_) / 65536.0))
+
+#define glamor_picture_get_matrixf(_picture_, _matrix_)			\
+  do {									\
+    int _i_;								\
+    if ((_picture_)->transform)						\
+      {									\
+	for(_i_ = 0; _i_ < 3; _i_++)					\
+	  {								\
+	    (_matrix_)[_i_ * 3 + 0] =					\
+	      xFixedToFloat((_picture_)->transform->matrix[_i_][0]);	\
+	    (_matrix_)[_i_ * 3 + 1] =					\
+	      xFixedToFloat((_picture_)->transform->matrix[_i_][1]);	\
+	    (_matrix_)[_i_ * 3 + 2] = \
+	      xFixedToFloat((_picture_)->transform->matrix[_i_][2]);	\
+	  }								\
+      }									\
+  }  while(0)
+
+#define fmod(x, w)		(x - w * floor((float)x/w))
+
+#define fmodulus(x, w, c)	do {c = fmod(x, w);		\
+				    c = c >= 0 ? c : c + w;}	\
+				while(0)
+/* @x: is current coord
+ * @x2: is the right/bottom edge
+ * @w: is current width or height
+ * @odd: is output value, 0 means we are in an even region, 1 means we are in a
+ * odd region.
+ * @c: is output value, equal to x mod w. */
+#define fodd_repeat_mod(x, x2, w, odd, c)	\
+  do {						\
+	float shift;				\
+	fmodulus((x), w, c); 			\
+	shift = fabs((x) - (c));		\
+	shift = floor(fabs(round(shift)) / w);	\
+	odd = (int)shift & 1;			\
+	if (odd && (((x2 % w) == 0) &&		\
+	    round(fabs(x)) == x2))		\
+		odd = 0;			\
+  } while(0)
+
+/* @txy: output value, is the corrected coords.
+ * @xy: input coords to be fixed up.
+ * @cd: xy mod wh, is a input value.
+ * @wh: current width or height.
+ * @bxy1,bxy2: current box edge's x1/x2 or y1/y2
+ *
+ * case 1:
+ *  ----------
+ *  |  *     |
+ *  |        |
+ *  ----------
+ *  tx = (c - x1) mod w
+ *
+ *  case 2:
+ *     ---------
+ *  *  |       |
+ *     |       |
+ *     ---------
+ *   tx = - (c - (x1 mod w))
+ *
+ *   case 3:
+ *
+ *   ----------
+ *   |        |  *
+ *   |        |
+ *   ----------
+ *   tx = ((x2 mod x) - c) + (x2 - x1)
+ **/
+#define __glamor_repeat_reflect_fixup(txy, xy,		\
+				cd, wh, bxy1, bxy2)	\
+  do {							\
+	cd = wh - cd;					\
+	if ( xy >= bxy1 && xy < bxy2) {			\
+		cd = cd - bxy1;				\
+		fmodulus(cd, wh, txy);			\
+	} else	if (xy < bxy1) {			\
+		float bxy1_mod;				\
+		fmodulus(bxy1, wh, bxy1_mod);		\
+		txy = -(cd - bxy1_mod);			\
+	}						\
+	else if (xy >= bxy2)	{			\
+		float bxy2_mod;				\
+		fmodulus(bxy2, wh, bxy2_mod);		\
+		if (bxy2_mod == 0)			\
+			bxy2_mod = wh;			\
+		txy = (bxy2_mod - cd) + bxy2 - bxy1;	\
+	} else {assert(0); txy = 0;}			\
+  } while(0)
+
+#define _glamor_repeat_reflect_fixup(txy, xy, cd, odd,	\
+				     wh, bxy1, bxy2)	\
+  do {							\
+	if (odd) {					\
+		__glamor_repeat_reflect_fixup(txy, xy, 	\
+			cd, wh, bxy1, bxy2);		\
+	} else						\
+		txy = xy - bxy1;			\
+  } while(0)
+
+#define _glamor_get_reflect_transform_coords(priv, repeat_type,	\
+					    tx1, ty1, 		\
+				            _x1_, _y1_)		\
+  do {								\
+	int odd_x, odd_y;					\
+	float c, d;						\
+	fodd_repeat_mod(_x1_,priv->box.x2,			\
+		    priv->base.pixmap->drawable.width,		\
+		    odd_x, c);					\
+	fodd_repeat_mod(_y1_,	priv->box.y2,			\
+		    priv->base.pixmap->drawable.height,		\
+		    odd_y, d);					\
+	DEBUGF("c %f d %f oddx %d oddy %d \n",			\
+		c, d, odd_x, odd_y);				\
+	DEBUGF("x2 %d x1 %d fbo->width %d \n", priv->box.x2,	\
+		priv->box.x1, priv->base.fbo->width);		\
+	DEBUGF("y2 %d y1 %d fbo->height %d \n", priv->box.y2, 	\
+		priv->box.y1, priv->base.fbo->height);		\
+	_glamor_repeat_reflect_fixup(tx1, _x1_, c, odd_x,	\
+		priv->base.pixmap->drawable.width,		\
+		priv->box.x1, priv->box.x2);			\
+	_glamor_repeat_reflect_fixup(ty1, _y1_, d, odd_y,	\
+		priv->base.pixmap->drawable.height,		\
+		priv->box.y1, priv->box.y2);			\
+   } while(0)
+
+#define _glamor_get_repeat_coords(priv, repeat_type, tx1,	\
+				  ty1, tx2, ty2,		\
+				  _x1_, _y1_, _x2_,		\
+				  _y2_, c, d, odd_x, odd_y)	\
+  do {								\
+	if (repeat_type == RepeatReflect) {			\
+		DEBUGF("x1 y1 %d %d\n",				\
+			_x1_, _y1_ );				\
+		DEBUGF("width %d box.x1 %d \n",			\
+		       (priv)->base.pixmap->drawable.width,	\
+		       priv->box.x1);				\
+		if (odd_x) {					\
+			c = (priv)->base.pixmap->drawable.width	\
+				- c;				\
+			tx1 = c - priv->box.x1;			\
+			tx2 = tx1 - ((_x2_) - (_x1_));		\
+		} else {					\
+			tx1 = c - priv->box.x1;			\
+			tx2 = tx1 + ((_x2_) - (_x1_));		\
+		}						\
+		if (odd_y){					\
+			d = (priv)->base.pixmap->drawable.height\
+			    - d;				\
+			ty1 = d - priv->box.y1;			\
+			ty2 = ty1 - ((_y2_) - (_y1_));		\
+		} else {					\
+			ty1 = d - priv->box.y1;			\
+			ty2 = ty1 + ((_y2_) - (_y1_));		\
+		}						\
+	} else { /* RepeatNormal*/				\
+		tx1 = (c - priv->box.x1);  			\
+		ty1 = (d - priv->box.y1);			\
+		tx2 = tx1 + ((_x2_) - (_x1_));			\
+		ty2 = ty1 + ((_y2_) - (_y1_));			\
+	}							\
+   } while(0)
+
+
+/* _x1_ ... _y2_ may has fractional. */
+#define glamor_get_repeat_transform_coords(priv, repeat_type, tx1,	\
+					   ty1, _x1_, _y1_)		\
+  do {									\
+	DEBUGF("width %d box.x1 %d x2 %d y1 %d y2 %d\n",		\
+		(priv)->base.pixmap->drawable.width,			\
+		priv->box.x1, priv->box.x2, priv->box.y1,		\
+		priv->box.y2);						\
+	DEBUGF("x1 %f y1 %f \n", _x1_, _y1_);				\
+	if (repeat_type != RepeatReflect) {				\
+		tx1 = _x1_ - priv->box.x1;				\
+		ty1 = _y1_ - priv->box.y1;				\
+	} else			\
+		_glamor_get_reflect_transform_coords(priv, repeat_type, \
+				  tx1, ty1, 				\
+				  _x1_, _y1_);				\
+	DEBUGF("tx1 %f ty1 %f \n", tx1, ty1);				\
+   } while(0)
+
+/* _x1_ ... _y2_ must be integer. */
+#define glamor_get_repeat_coords(priv, repeat_type, tx1,		\
+				 ty1, tx2, ty2, _x1_, _y1_, _x2_,	\
+				 _y2_) 					\
+  do {									\
+	int c, d;							\
+	int odd_x = 0, odd_y = 0;					\
+	DEBUGF("width %d box.x1 %d x2 %d y1 %d y2 %d\n",		\
+		(priv)->base.pixmap->drawable.width,			\
+		priv->box.x1, priv->box.x2,				\
+		priv->box.y1, priv->box.y2);				\
+	modulus((_x1_), (priv)->base.pixmap->drawable.width, c); 	\
+	modulus((_y1_), (priv)->base.pixmap->drawable.height, d);	\
+	DEBUGF("c %d d %d \n", c, d);					\
+	if (repeat_type == RepeatReflect) {				\
+		odd_x = abs((_x1_ - c)					\
+			/ (priv->base.pixmap->drawable.width)) & 1;	\
+		odd_y = abs((_y1_ - d)					\
+			/ (priv->base.pixmap->drawable.height)) & 1;	\
+	}								\
+	_glamor_get_repeat_coords(priv, repeat_type, tx1, ty1, tx2, ty2,\
+				  _x1_, _y1_, _x2_, _y2_, c, d,		\
+				  odd_x, odd_y);			\
+   } while(0)
+
+#define glamor_transform_point(matrix, tx, ty, x, y)			\
+  do {									\
+    int _i_;								\
+    float _result_[4];							\
+    for (_i_ = 0; _i_ < 3; _i_++) {					\
+      _result_[_i_] = (matrix)[_i_ * 3] * (x) + (matrix)[_i_ * 3 + 1] * (y)	\
+	+ (matrix)[_i_ * 3 + 2];					\
+    }									\
+    tx = _result_[0] / _result_[2];					\
+    ty = _result_[1] / _result_[2];					\
+  } while(0)
+
+#define _glamor_set_normalize_tpoint(xscale, yscale, _tx_, _ty_,	\
+				     texcoord, yInverted)		\
+  do {									\
+	(texcoord)[0] = t_from_x_coord_x(xscale, _tx_);			\
+	if (likely(yInverted))						\
+		(texcoord)[1] = t_from_x_coord_y_inverted(yscale, _ty_);\
+	else								\
+		(texcoord)[1] = t_from_x_coord_y(yscale, _ty_);		\
+        DEBUGF("normalized point tx %f ty %f \n", (texcoord)[0],	\
+		(texcoord)[1]);						\
+  } while(0)
+
+#define glamor_set_transformed_point(priv, matrix, xscale,		\
+				     yscale, texcoord,			\
+                                     x, y, 				\
+				     yInverted)				\
+  do {									\
+    float tx, ty;							\
+    int fbo_x_off, fbo_y_off;						\
+    pixmap_priv_get_fbo_off(priv, &fbo_x_off, &fbo_y_off);		\
+    glamor_transform_point(matrix, tx, ty, x, y);			\
+    DEBUGF("tx %f ty %f fbooff %d %d \n",				\
+	    tx, ty, fbo_x_off, fbo_y_off);				\
+									\
+    tx += fbo_x_off;							\
+    ty += fbo_y_off;							\
+    (texcoord)[0] = t_from_x_coord_x(xscale, tx);			\
+    if (likely(yInverted))							\
+      (texcoord)[1] = t_from_x_coord_y_inverted(yscale, ty);		\
+    else								\
+      (texcoord)[1] = t_from_x_coord_y(yscale, ty);			\
+    DEBUGF("normalized tx %f ty %f \n", (texcoord)[0], (texcoord)[1]);	\
+  } while(0)
+
+#define glamor_set_transformed_normalize_tri_tcoords(priv,		\
+						     matrix,		\
+						     xscale,		\
+						     yscale,		\
+						     vtx,		\
+						     yInverted,		\
+						     texcoords)		\
+    do {								\
+	glamor_set_transformed_point(priv, matrix, xscale, yscale,	\
+				     texcoords, (vtx)[0], (vtx)[1],	\
+				     yInverted);			\
+	glamor_set_transformed_point(priv, matrix, xscale, yscale,	\
+				     texcoords+2, (vtx)[2], (vtx)[3],	\
+				     yInverted);			\
+	glamor_set_transformed_point(priv, matrix, xscale, yscale,	\
+				     texcoords+4, (vtx)[4], (vtx)[5],	\
+				     yInverted);			\
+    } while (0)
+
+#define glamor_set_transformed_normalize_tcoords_ext( priv,		\
+						  matrix,		\
+						  xscale,		\
+						  yscale,		\
+                                                  tx1, ty1, tx2, ty2,   \
+                                                  yInverted, texcoords,	\
+						  stride)		\
+  do {									\
+    glamor_set_transformed_point(priv, matrix, xscale, yscale,		\
+				 texcoords, tx1, ty1,			\
+				 yInverted);				\
+    glamor_set_transformed_point(priv, matrix, xscale, yscale,		\
+				 texcoords + 1 * stride, tx2, ty1,	\
+				 yInverted);				\
+    glamor_set_transformed_point(priv, matrix, xscale, yscale,		\
+				 texcoords + 2 * stride, tx2, ty2,	\
+				 yInverted);				\
+    glamor_set_transformed_point(priv, matrix, xscale, yscale,		\
+				 texcoords + 3 * stride, tx1, ty2,	\
+				 yInverted);				\
+  } while (0)
+
+#define glamor_set_transformed_normalize_tcoords( priv,			\
+						  matrix,		\
+						  xscale,		\
+						  yscale,		\
+                                                  tx1, ty1, tx2, ty2,   \
+                                                  yInverted, texcoords)	\
+  do {									\
+	glamor_set_transformed_normalize_tcoords_ext( priv,		\
+						  matrix,		\
+						  xscale,		\
+						  yscale,		\
+                                                  tx1, ty1, tx2, ty2,   \
+                                                  yInverted, texcoords,	\
+						  2);			\
+  } while (0)
+
+
+
+#define glamor_set_normalize_tri_tcoords(xscale,		\
+					 yscale,		\
+					 vtx,			\
+					 yInverted,		\
+					 texcoords)		\
+    do {							\
+	_glamor_set_normalize_tpoint(xscale, yscale,		\
+				(vtx)[0], (vtx)[1],		\
+				texcoords,			\
+				yInverted);			\
+	_glamor_set_normalize_tpoint(xscale, yscale,		\
+				(vtx)[2], (vtx)[3],		\
+				texcoords+2,			\
+				yInverted);			\
+	_glamor_set_normalize_tpoint(xscale, yscale,		\
+				(vtx)[4], (vtx)[5],		\
+				texcoords+4,			\
+				yInverted);			\
+    } while (0)
+
+#define glamor_set_repeat_transformed_normalize_tcoords_ext( priv,	\
+							 repeat_type,	\
+							 matrix,	\
+							 xscale,	\
+							 yscale,	\
+							 _x1_, _y1_,	\
+							 _x2_, _y2_,   	\
+							 yInverted,	\
+							 texcoords,	\
+							 stride)	\
+  do {									\
+    if (likely(priv->type != GLAMOR_TEXTURE_LARGE)) {			\
+	glamor_set_transformed_normalize_tcoords_ext(priv, matrix, xscale,	\
+						 yscale, _x1_, _y1_,	\
+						 _x2_, _y2_, yInverted,	\
+						 texcoords, stride);	\
+    } else {								\
+    float tx1, ty1, tx2, ty2, tx3, ty3, tx4, ty4;			\
+    float ttx1, tty1, ttx2, tty2, ttx3, tty3, ttx4, tty4;		\
+    DEBUGF("original coords %d %d %d %d\n", _x1_, _y1_, _x2_, _y2_);	\
+    glamor_transform_point(matrix, tx1, ty1, _x1_, _y1_);		\
+    glamor_transform_point(matrix, tx2, ty2, _x2_, _y1_);		\
+    glamor_transform_point(matrix, tx3, ty3, _x2_, _y2_);		\
+    glamor_transform_point(matrix, tx4, ty4, _x1_, _y2_);		\
+    DEBUGF("transformed %f %f %f %f %f %f %f %f\n",			\
+	   tx1, ty1, tx2, ty2, tx3, ty3, tx4, ty4);			\
+    glamor_get_repeat_transform_coords((&priv->large), repeat_type, 	\
+				       ttx1, tty1, 			\
+				       tx1, ty1);			\
+    glamor_get_repeat_transform_coords((&priv->large), repeat_type, 	\
+				       ttx2, tty2, 			\
+				       tx2, ty2);			\
+    glamor_get_repeat_transform_coords((&priv->large), repeat_type, 	\
+				       ttx3, tty3, 			\
+				       tx3, ty3);			\
+    glamor_get_repeat_transform_coords((&priv->large), repeat_type, 	\
+				       ttx4, tty4, 			\
+				       tx4, ty4);			\
+    DEBUGF("repeat transformed %f %f %f %f %f %f %f %f\n", ttx1, tty1, 	\
+	    ttx2, tty2,	ttx3, tty3, ttx4, tty4);			\
+    _glamor_set_normalize_tpoint(xscale, yscale, ttx1, tty1,		\
+				 texcoords, yInverted);			\
+    _glamor_set_normalize_tpoint(xscale, yscale, ttx2, tty2,		\
+				 texcoords + 1 * stride, yInverted);	\
+    _glamor_set_normalize_tpoint(xscale, yscale, ttx3, tty3,		\
+				 texcoords + 2 * stride, yInverted);	\
+    _glamor_set_normalize_tpoint(xscale, yscale, ttx4, tty4,		\
+				 texcoords + 3 * stride, yInverted);	\
+   }									\
+  } while (0)
+
+
+#define glamor_set_repeat_transformed_normalize_tcoords( priv,		\
+							 repeat_type,	\
+							 matrix,	\
+							 xscale,	\
+							 yscale,	\
+							 _x1_, _y1_,	\
+							 _x2_, _y2_,   	\
+							 yInverted,	\
+							 texcoords)	\
+  do {									\
+	glamor_set_repeat_transformed_normalize_tcoords_ext( priv,	\
+							 repeat_type,	\
+							 matrix,	\
+							 xscale,	\
+							 yscale,	\
+							 _x1_, _y1_,	\
+							 _x2_, _y2_,   	\
+							 yInverted,	\
+							 texcoords,	\
+							 2);	\
+  } while (0)
+
+#define _glamor_set_normalize_tcoords(xscale, yscale, tx1,		\
+				      ty1, tx2, ty2,			\
+				      yInverted, vertices, stride)	\
+  do {									\
+    /* vertices may be write-only, so we use following			\
+     * temporary variable. */ 						\
+    float _t0_, _t1_, _t2_, _t5_;					\
+    (vertices)[0] = _t0_ = t_from_x_coord_x(xscale, tx1);		\
+    (vertices)[1 * stride] = _t2_ = t_from_x_coord_x(xscale, tx2);	\
+    (vertices)[2 * stride] = _t2_;					\
+    (vertices)[3 * stride] = _t0_;					\
+    if (likely(yInverted)) {							\
+      (vertices)[1] = _t1_ = t_from_x_coord_y_inverted(yscale, ty1);	\
+      (vertices)[2 * stride + 1] = _t5_ = t_from_x_coord_y_inverted(yscale, ty2);\
+    }									\
+    else {								\
+      (vertices)[1] = _t1_ = t_from_x_coord_y(yscale, ty1);		\
+      (vertices)[2 * stride + 1] = _t5_ = t_from_x_coord_y(yscale, ty2);\
+    }									\
+    (vertices)[1 * stride + 1] = _t1_;					\
+    (vertices)[3 * stride + 1] = _t5_;					\
+  } while(0)
+
+#define glamor_set_normalize_tcoords_ext(priv, xscale, yscale,		\
+				     x1, y1, x2, y2,			\
+                                     yInverted, vertices, stride)	\
+  do {									\
+     if (unlikely(priv->type == GLAMOR_TEXTURE_LARGE)) {				\
+	float tx1, tx2, ty1, ty2;					\
+	int fbo_x_off, fbo_y_off;					\
+	pixmap_priv_get_fbo_off(priv, &fbo_x_off, &fbo_y_off);		\
+	tx1 = x1 + fbo_x_off; 						\
+	tx2 = x2 + fbo_x_off;						\
+	ty1 = y1 + fbo_y_off;						\
+	ty2 = y2 + fbo_y_off;						\
+	_glamor_set_normalize_tcoords(xscale, yscale, tx1, ty1,		\
+				   tx2, ty2, yInverted, vertices,	\
+				   stride);				\
+     } else								\
+	_glamor_set_normalize_tcoords(xscale, yscale, x1, y1,		\
+				   x2, y2, yInverted, vertices, stride);\
+ } while(0)
+
+
+#define glamor_set_normalize_tcoords(priv, xscale, yscale,		\
+				     x1, y1, x2, y2,			\
+                                     yInverted, vertices)		\
+  do {									\
+	glamor_set_normalize_tcoords_ext(priv, xscale, yscale,		\
+				     x1, y1, x2, y2,			\
+                                     yInverted, vertices, 2);		\
+ } while(0)
+
+#define glamor_set_repeat_normalize_tcoords_ext(priv, repeat_type,	\
+					    xscale, yscale,		\
+					    _x1_, _y1_, _x2_, _y2_,	\
+	                                    yInverted, vertices, stride)\
+  do {									\
+     if (unlikely(priv->type == GLAMOR_TEXTURE_LARGE)) {				\
+	float tx1, tx2, ty1, ty2;					\
+	if (repeat_type == RepeatPad) {					\
+		tx1 = _x1_ - priv->large.box.x1;			\
+		ty1 = _y1_ - priv->large.box.y1;			\
+		tx2 = tx1 + ((_x2_) - (_x1_));				\
+		ty2 = ty1 + ((_y2_) - (_y1_));				\
+	} else {							\
+	glamor_get_repeat_coords((&priv->large), repeat_type,		\
+				 tx1, ty1, tx2, ty2,			\
+				 _x1_, _y1_, _x2_, _y2_);		\
+	}								\
+	_glamor_set_normalize_tcoords(xscale, yscale, tx1, ty1,		\
+				   tx2, ty2, yInverted, vertices,	\
+				   stride);				\
+     } else								\
+	_glamor_set_normalize_tcoords(xscale, yscale, _x1_, _y1_,	\
+				   _x2_, _y2_, yInverted, vertices,	\
+				   stride);				\
+ } while(0)
+
+
+#define glamor_set_repeat_normalize_tcoords(priv, repeat_type,		\
+					    xscale, yscale,		\
+					    _x1_, _y1_, _x2_, _y2_,	\
+	                                    yInverted, vertices)	\
+  do {									\
+	glamor_set_repeat_normalize_tcoords_ext(priv, repeat_type,	\
+					    xscale, yscale,		\
+					    _x1_, _y1_, _x2_, _y2_,	\
+	                                    yInverted, vertices, 2);	\
+ } while(0)
+
+#define glamor_set_normalize_tcoords_tri_stripe(xscale, yscale,		\
+						x1, y1, x2, y2,		\
+						yInverted, vertices)	\
+    do {								\
+	(vertices)[0] = t_from_x_coord_x(xscale, x1);			\
+	(vertices)[2] = t_from_x_coord_x(xscale, x2);			\
+	(vertices)[6] = (vertices)[2];					\
+	(vertices)[4] = (vertices)[0];					\
+	if (likely(yInverted)) {						\
+	    (vertices)[1] = t_from_x_coord_y_inverted(yscale, y1);	\
+	    (vertices)[7] = t_from_x_coord_y_inverted(yscale, y2);	\
+	}								\
+	else {								\
+	    (vertices)[1] = t_from_x_coord_y(yscale, y1);		\
+	    (vertices)[7] = t_from_x_coord_y(yscale, y2);		\
+	}								\
+	(vertices)[3] = (vertices)[1];					\
+	(vertices)[5] = (vertices)[7];					\
+    } while(0)
+
+#define glamor_set_tcoords(width, height, x1, y1, x2, y2,	\
+			   yInverted, vertices)			\
+    do {							\
+	(vertices)[0] = (x1);					\
+	(vertices)[2] = (x2);					\
+	(vertices)[4] = (vertices)[2];				\
+	(vertices)[6] = (vertices)[0];				\
+	if (likely(yInverted)) {					\
+	    (vertices)[1] = (y1);				\
+	    (vertices)[5] = (y2);				\
+	}							\
+	else {							\
+	    (vertices)[1] = height - (y2);			\
+	    (vertices)[5] = height - (y1);			\
+	}							\
+	(vertices)[3] = (vertices)[1];				\
+	(vertices)[7] = (vertices)[5];				\
+    } while(0)
+
+#define glamor_set_tcoords_ext(width, height, x1, y1, x2, y2,	\
+			       yInverted, vertices, stride)	\
+    do {							\
+	(vertices)[0] = (x1);					\
+	(vertices)[1*stride] = (x2);				\
+	(vertices)[2*stride] = (vertices)[1*stride];		\
+	(vertices)[3*stride] = (vertices)[0];			\
+	if (likely(yInverted)) {				\
+	    (vertices)[1] = (y1);				\
+	    (vertices)[2*stride + 1] = (y2);			\
+	}							\
+	else {							\
+	    (vertices)[1] = height - (y2);			\
+	    (vertices)[2*stride + 1] = height - (y1);		\
+	}							\
+	(vertices)[1*stride + 1] = (vertices)[1];		\
+	(vertices)[3*stride + 1] = (vertices)[2*stride + 1];	\
+    } while(0)
+
+#define glamor_set_normalize_one_vcoord(xscale, yscale, x, y,		\
+					yInverted, vertices)		\
+    do {								\
+	(vertices)[0] = v_from_x_coord_x(xscale, x);			\
+	if (likely(yInverted)) {						\
+	    (vertices)[1] = v_from_x_coord_y_inverted(yscale, y);	\
+	} else {							\
+	    (vertices)[1] = v_from_x_coord_y(yscale, y);		\
+	}								\
+    } while(0)
+
+#define glamor_set_normalize_tri_vcoords(xscale, yscale, vtx,		\
+					 yInverted, vertices)		\
+    do {								\
+	glamor_set_normalize_one_vcoord(xscale, yscale,			\
+					(vtx)[0], (vtx)[1],		\
+					yInverted, vertices);		\
+	glamor_set_normalize_one_vcoord(xscale, yscale,			\
+					(vtx)[2], (vtx)[3],		\
+					yInverted, vertices+2);		\
+	glamor_set_normalize_one_vcoord(xscale, yscale,			\
+					(vtx)[4], (vtx)[5],		\
+					yInverted, vertices+4);		\
+    } while(0)
+
+#define glamor_set_tcoords_tri_strip(width, height, x1, y1, x2, y2,	\
+				     yInverted, vertices)		\
+    do {								\
+	(vertices)[0] = (x1);						\
+	(vertices)[2] = (x2);						\
+	(vertices)[6] = (vertices)[2];					\
+	(vertices)[4] = (vertices)[0];					\
+	if (likely(yInverted)) {						\
+	    (vertices)[1] = (y1);					\
+	    (vertices)[7] = (y2);					\
+	}								\
+	else {								\
+	    (vertices)[1] = height - (y2);				\
+	    (vertices)[7] = height - (y1);				\
+	}								\
+	(vertices)[3] = (vertices)[1];					\
+	(vertices)[5] = (vertices)[7];					\
+    } while(0)
+
+#define glamor_set_normalize_vcoords_ext(priv, xscale, yscale,		\
+				     x1, y1, x2, y2,			\
+                                     yInverted, vertices, stride)	\
+  do {									\
+    int fbo_x_off, fbo_y_off;						\
+    /* vertices may be write-only, so we use following			\
+     * temporary variable. */						\
+    float _t0_, _t1_, _t2_, _t5_;					\
+    pixmap_priv_get_fbo_off(priv, &fbo_x_off, &fbo_y_off);		\
+    (vertices)[0] = _t0_ = v_from_x_coord_x(xscale, x1 + fbo_x_off);	\
+    (vertices)[1 * stride] = _t2_ = v_from_x_coord_x(xscale,		\
+					x2 + fbo_x_off);		\
+    (vertices)[2 * stride] = _t2_;					\
+    (vertices)[3 * stride] = _t0_;					\
+    if (likely(yInverted)) {							\
+      (vertices)[1] = _t1_ = v_from_x_coord_y_inverted(yscale,		\
+				y1 + fbo_y_off);			\
+      (vertices)[2 * stride + 1] = _t5_ =				\
+			v_from_x_coord_y_inverted(yscale,		\
+					y2 + fbo_y_off);		\
+    }									\
+    else {								\
+      (vertices)[1] = _t1_ = v_from_x_coord_y(yscale, y1 + fbo_y_off);	\
+      (vertices)[2 * stride + 1] = _t5_ = v_from_x_coord_y(yscale,	\
+					y2 + fbo_y_off);		\
+    }									\
+    (vertices)[1 * stride + 1] = _t1_;					\
+    (vertices)[3 * stride + 1] = _t5_;					\
+  } while(0)
+
+
+#define glamor_set_normalize_vcoords(priv, xscale, yscale,		\
+				     x1, y1, x2, y2,			\
+                                     yInverted, vertices)		\
+  do {									\
+	glamor_set_normalize_vcoords_ext(priv, xscale, yscale,		\
+				     x1, y1, x2, y2,			\
+                                     yInverted, vertices, 2);		\
+  } while(0)
+
+#define glamor_set_const_ext(params, nparam, vertices, nverts, stride)	\
+    do {								\
+	int _i_ = 0, _j_ = 0;						\
+	for(; _i_ < nverts; _i_++) {					\
+	    for(_j_ = 0; _j_ < nparam; _j_++) {				\
+		vertices[stride*_i_ + _j_] = params[_j_];		\
+	    }								\
+	}								\
+    } while(0)
+
+#define glamor_set_normalize_vcoords_tri_strip(xscale, yscale,		\
+					       x1, y1, x2, y2,		\
+					       yInverted, vertices)	\
+    do {								\
+	(vertices)[0] = v_from_x_coord_x(xscale, x1);			\
+	(vertices)[2] = v_from_x_coord_x(xscale, x2);			\
+	(vertices)[6] = (vertices)[2];					\
+	(vertices)[4] = (vertices)[0];					\
+	if (likely(yInverted)) {						\
+	    (vertices)[1] = v_from_x_coord_y_inverted(yscale, y1);	\
+	    (vertices)[7] = v_from_x_coord_y_inverted(yscale, y2);	\
+	}								\
+	else {								\
+	    (vertices)[1] = v_from_x_coord_y(yscale, y1);		\
+	    (vertices)[7] = v_from_x_coord_y(yscale, y2);		\
+	}								\
+	(vertices)[3] = (vertices)[1];					\
+	(vertices)[5] = (vertices)[7];					\
+    } while(0)
+
+#define glamor_set_normalize_pt(xscale, yscale, x, y,		\
+                                yInverted, pt)			\
+    do {							\
+        (pt)[0] = t_from_x_coord_x(xscale, x);			\
+        if (likely(yInverted)) {					\
+            (pt)[1] = t_from_x_coord_y_inverted(yscale, y);	\
+        } else {						\
+            (pt)[1] = t_from_x_coord_y(yscale, y);		\
+        }							\
+    } while(0)
+
+#define glamor_set_circle_centre(width, height, x, y,	\
+				 yInverted, c)		\
+    do {						\
+        (c)[0] = (float)x;				\
+        if (likely(yInverted)) {				\
+            (c)[1] = (float)y;				\
+        } else {					\
+            (c)[1] = (float)height - (float)y;		\
+        }						\
+    } while(0)
+
+inline static void
+glamor_calculate_boxes_bound(BoxPtr bound, BoxPtr boxes, int nbox)
+{
+	int x_min, y_min;
+	int x_max, y_max;
+	int i;
+	x_min = y_min = MAXSHORT;
+	x_max = y_max = MINSHORT;
+	for (i = 0; i < nbox; i++) {
+		if (x_min > boxes[i].x1)
+			x_min = boxes[i].x1;
+		if (y_min > boxes[i].y1)
+			y_min = boxes[i].y1;
+
+		if (x_max < boxes[i].x2)
+			x_max = boxes[i].x2;
+		if (y_max < boxes[i].y2)
+			y_max = boxes[i].y2;
+	}
+	bound->x1 = x_min;
+	bound->y1 = y_min;
+	bound->x2 = x_max;
+	bound->y2 = y_max;
+}
+
+inline static void
+glamor_translate_boxes(BoxPtr boxes, int nbox, int dx, int dy)
+{
+	int i;
+	for (i = 0; i < nbox; i++) {
+		boxes[i].x1 += dx;
+		boxes[i].y1 += dy;
+		boxes[i].x2 += dx;
+		boxes[i].y2 += dy;
+	}
+}
+
+static inline Bool
+region_is_empty(pixman_region16_t *region)
+{
+	return region->data && region->data->numRects == 0;
+}
+
+#ifndef ARRAY_SIZE
+#define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0]))
+#endif
+
+#define ALIGN(i,m)	(((i) + (m) - 1) & ~((m) - 1))
+#define MIN(a,b)	((a) < (b) ? (a) : (b))
+#define MAX(a,b)	((a) > (b) ? (a) : (b))
+
+#define glamor_check_fbo_size(_glamor_,_w_, _h_)    ((_w_) > 0 && (_h_) > 0 \
+                                                    && (_w_) <= _glamor_->max_fbo_size  \
+                                                    && (_h_) <= _glamor_->max_fbo_size)
+
+/* For 1bpp pixmap, we don't store it as texture. */
+#define glamor_check_pixmap_fbo_depth(_depth_) (			\
+						_depth_ == 8		\
+						|| _depth_ == 15	\
+						|| _depth_ == 16	\
+						|| _depth_ == 24	\
+						|| _depth_ == 30	\
+						|| _depth_ == 32)
+
+#define GLAMOR_PIXMAP_PRIV_IS_PICTURE(pixmap_priv) (pixmap_priv && pixmap_priv->base.is_picture == 1)
+#define GLAMOR_PIXMAP_PRIV_HAS_FBO(pixmap_priv)    (pixmap_priv && pixmap_priv->base.gl_fbo == GLAMOR_FBO_NORMAL)
+#define GLAMOR_PIXMAP_PRIV_HAS_FBO_DOWNLOADED(pixmap_priv)    (pixmap_priv && (pixmap_priv->base.gl_fbo == GLAMOR_FBO_DOWNLOADED))
+
+/**
+ * Borrow from uxa.
+ */
+static inline CARD32
+format_for_depth(int depth)
+{
+	switch (depth) {
+	case 1:
+		return PICT_a1;
+	case 4:
+		return PICT_a4;
+	case 8:
+		return PICT_a8;
+	case 15:
+		return PICT_x1r5g5b5;
+	case 16:
+		return PICT_r5g6b5;
+	default:
+	case 24:
+		return PICT_x8r8g8b8;
+#if XORG_VERSION_CURRENT >= 10699900
+	case 30:
+		return PICT_x2r10g10b10;
+#endif
+	case 32:
+		return PICT_a8r8g8b8;
+	}
+}
+
+static inline void
+gl_iformat_for_depth(int depth, GLenum * format)
+{
+	switch (depth) {
+#ifndef GLAMOR_GLES2
+	case 1:
+	case 8:
+		*format = GL_ALPHA;
+		break;
+#endif
+	default:
+		*format = GL_RGBA;
+		break;
+       }
+}
+
+static inline CARD32
+format_for_pixmap(PixmapPtr pixmap)
+{
+	glamor_pixmap_private *pixmap_priv;
+	PictFormatShort pict_format;
+
+	pixmap_priv = glamor_get_pixmap_private(pixmap);
+	if (GLAMOR_PIXMAP_PRIV_IS_PICTURE(pixmap_priv))
+		pict_format = pixmap_priv->base.picture->format;
+	else
+		pict_format = format_for_depth(pixmap->drawable.depth);
+
+	return pict_format;
+}
+
+#define REVERT_NONE       		0
+#define REVERT_NORMAL     		1
+#define REVERT_DOWNLOADING_A1		2
+#define REVERT_UPLOADING_A1		3
+#define REVERT_DOWNLOADING_2_10_10_10 	4
+#define REVERT_UPLOADING_2_10_10_10 	5
+#define REVERT_DOWNLOADING_1_5_5_5  	7
+#define REVERT_UPLOADING_1_5_5_5    	8
+#define REVERT_DOWNLOADING_10_10_10_2 	9
+#define REVERT_UPLOADING_10_10_10_2 	10
+
+#define SWAP_NONE_DOWNLOADING  	0
+#define SWAP_DOWNLOADING  	1
+#define SWAP_UPLOADING	  	2
+#define SWAP_NONE_UPLOADING	3
+
+/*
+ * Map picture's format to the correct gl texture format and type.
+ * no_alpha is used to indicate whehter we need to wire alpha to 1.
+ *
+ * Although opengl support A1/GL_BITMAP, we still don't use it
+ * here, it seems that mesa has bugs when uploading a A1 bitmap.
+ *
+ * Return 0 if find a matched texture type. Otherwise return -1.
+ **/
+#ifndef GLAMOR_GLES2
+static inline int
+glamor_get_tex_format_type_from_pictformat(PictFormatShort format,
+					   GLenum * tex_format,
+					   GLenum * tex_type,
+					   int *no_alpha,
+					   int *revert,
+					   int *swap_rb,
+					   int is_upload)
+
+{
+	*no_alpha = 0;
+	*revert = REVERT_NONE;
+	*swap_rb = is_upload ? SWAP_NONE_UPLOADING : SWAP_NONE_DOWNLOADING;
+	switch (format) {
+	case PICT_a1:
+		*tex_format = GL_ALPHA;
+		*tex_type = GL_UNSIGNED_BYTE;
+		*revert = is_upload ? REVERT_UPLOADING_A1 : REVERT_DOWNLOADING_A1;
+		break;
+	case PICT_b8g8r8x8:
+		*no_alpha = 1;
+	case PICT_b8g8r8a8:
+		*tex_format = GL_BGRA;
+		*tex_type = GL_UNSIGNED_INT_8_8_8_8;
+		break;
+
+	case PICT_x8r8g8b8:
+		*no_alpha = 1;
+	case PICT_a8r8g8b8:
+		*tex_format = GL_BGRA;
+		*tex_type = GL_UNSIGNED_INT_8_8_8_8_REV;
+		break;
+	case PICT_x8b8g8r8:
+		*no_alpha = 1;
+	case PICT_a8b8g8r8:
+		*tex_format = GL_RGBA;
+		*tex_type = GL_UNSIGNED_INT_8_8_8_8_REV;
+		break;
+	case PICT_x2r10g10b10:
+		*no_alpha = 1;
+	case PICT_a2r10g10b10:
+		*tex_format = GL_BGRA;
+		*tex_type = GL_UNSIGNED_INT_2_10_10_10_REV;
+		break;
+	case PICT_x2b10g10r10:
+		*no_alpha = 1;
+	case PICT_a2b10g10r10:
+		*tex_format = GL_RGBA;
+		*tex_type = GL_UNSIGNED_INT_2_10_10_10_REV;
+		break;
+
+	case PICT_r5g6b5:
+		*tex_format = GL_RGB;
+		*tex_type = GL_UNSIGNED_SHORT_5_6_5;
+		break;
+	case PICT_b5g6r5:
+		*tex_format = GL_RGB;
+		*tex_type = GL_UNSIGNED_SHORT_5_6_5_REV;
+		break;
+	case PICT_x1b5g5r5:
+		*no_alpha = 1;
+	case PICT_a1b5g5r5:
+		*tex_format = GL_RGBA;
+		*tex_type = GL_UNSIGNED_SHORT_1_5_5_5_REV;
+		break;
+
+	case PICT_x1r5g5b5:
+		*no_alpha = 1;
+	case PICT_a1r5g5b5:
+		*tex_format = GL_BGRA;
+		*tex_type = GL_UNSIGNED_SHORT_1_5_5_5_REV;
+		break;
+	case PICT_a8:
+		*tex_format = GL_ALPHA;
+		*tex_type = GL_UNSIGNED_BYTE;
+		break;
+	case PICT_x4r4g4b4:
+		*no_alpha = 1;
+	case PICT_a4r4g4b4:
+		*tex_format = GL_BGRA;
+		*tex_type = GL_UNSIGNED_SHORT_4_4_4_4_REV;
+		break;
+
+	case PICT_x4b4g4r4:
+		*no_alpha = 1;
+	case PICT_a4b4g4r4:
+		*tex_format = GL_RGBA;
+		*tex_type = GL_UNSIGNED_SHORT_4_4_4_4_REV;
+		break;
+
+	default:
+		LogMessageVerb(X_INFO, 0,
+			       "fail to get matched format for %x \n",
+			       format);
+		return -1;
+	}
+	return 0;
+}
+
+/* Currently, we use RGBA to represent all formats. */
+inline static int cache_format(GLenum format)
+{
+	switch (format) {
+	case GL_ALPHA:
+		return 1;
+	case GL_RGBA:
+		return 0;
+	default:
+		return -1;
+	}
+}
+
+#else
+#define IS_LITTLE_ENDIAN  (IMAGE_BYTE_ORDER == LSBFirst)
+
+static inline int
+glamor_get_tex_format_type_from_pictformat(PictFormatShort format,
+					   GLenum * tex_format,
+					   GLenum * tex_type,
+					   int *no_alpha,
+					   int *revert,
+					   int *swap_rb,
+					   int is_upload)
+{
+	int need_swap_rb = 0;
+
+	*no_alpha = 0;
+	*revert = IS_LITTLE_ENDIAN ? REVERT_NONE : REVERT_NORMAL;
+
+	switch (format) {
+	case PICT_b8g8r8x8:
+		*no_alpha = 1;
+	case PICT_b8g8r8a8:
+		*tex_format = GL_RGBA;
+		*tex_type = GL_UNSIGNED_BYTE;
+		need_swap_rb = 1;
+		*revert = IS_LITTLE_ENDIAN ? REVERT_NORMAL : REVERT_NONE;
+		break;
+
+	case PICT_x8r8g8b8:
+		*no_alpha = 1;
+	case PICT_a8r8g8b8:
+		*tex_format = GL_RGBA;
+		*tex_type = GL_UNSIGNED_BYTE;
+		need_swap_rb = 1;
+		break;
+
+	case PICT_x8b8g8r8:
+		*no_alpha = 1;
+	case PICT_a8b8g8r8:
+		*tex_format = GL_RGBA;
+		*tex_type = GL_UNSIGNED_BYTE;
+		break;
+
+	case PICT_x2r10g10b10:
+		*no_alpha = 1;
+	case PICT_a2r10g10b10:
+		*tex_format = GL_RGBA;
+		/* glReadPixmap doesn't support GL_UNSIGNED_INT_10_10_10_2.
+		 * we have to use GL_UNSIGNED_BYTE and do the conversion in
+		 * shader latter.*/
+		*tex_type = GL_UNSIGNED_BYTE;
+		if (is_upload == 1) {
+			if (!IS_LITTLE_ENDIAN)
+				*revert = REVERT_UPLOADING_10_10_10_2;
+			else
+				*revert = REVERT_UPLOADING_2_10_10_10;
+		}
+		else {
+			if (!IS_LITTLE_ENDIAN) {
+				*revert = REVERT_DOWNLOADING_10_10_10_2;
+			}
+			else {
+				*revert = REVERT_DOWNLOADING_2_10_10_10;
+			}
+		}
+		need_swap_rb = 1;
+
+		break;
+
+	case PICT_x2b10g10r10:
+		*no_alpha = 1;
+	case PICT_a2b10g10r10:
+		*tex_format = GL_RGBA;
+		*tex_type = GL_UNSIGNED_BYTE;
+		if (is_upload == 1) {
+			if (!IS_LITTLE_ENDIAN)
+				*revert = REVERT_UPLOADING_10_10_10_2;
+			else
+				*revert = REVERT_UPLOADING_2_10_10_10;
+		}
+		else {
+			if (!IS_LITTLE_ENDIAN) {
+				*revert = REVERT_DOWNLOADING_10_10_10_2;
+			}
+			else {
+				*revert = REVERT_DOWNLOADING_2_10_10_10;
+			}
+		}
+		break;
+
+	case PICT_r5g6b5:
+		*tex_format = GL_RGB;
+		*tex_type = GL_UNSIGNED_SHORT_5_6_5;
+		*revert = IS_LITTLE_ENDIAN ? REVERT_NONE : REVERT_NORMAL;
+
+		break;
+
+	case PICT_b5g6r5:
+		*tex_format = GL_RGB;
+		*tex_type = GL_UNSIGNED_SHORT_5_6_5;
+		need_swap_rb = IS_LITTLE_ENDIAN ? 1 : 0;;
+		break;
+
+	case PICT_x1b5g5r5:
+		*no_alpha = 1;
+	case PICT_a1b5g5r5:
+		*tex_format = GL_RGBA;
+		*tex_type = GL_UNSIGNED_SHORT_5_5_5_1;
+		if (IS_LITTLE_ENDIAN) {
+			*revert = is_upload ? REVERT_UPLOADING_1_5_5_5 : REVERT_DOWNLOADING_1_5_5_5;
+		} else
+			*revert = REVERT_NONE;
+		break;
+
+	case PICT_x1r5g5b5:
+		*no_alpha = 1;
+	case PICT_a1r5g5b5:
+		*tex_format = GL_RGBA;
+		*tex_type = GL_UNSIGNED_SHORT_5_5_5_1;
+		if (IS_LITTLE_ENDIAN) {
+			*revert = is_upload ? REVERT_UPLOADING_1_5_5_5 : REVERT_DOWNLOADING_1_5_5_5;
+		} else
+			*revert = REVERT_NONE;
+		need_swap_rb = 1;
+		break;
+
+	case PICT_a1:
+		*tex_format = GL_ALPHA;
+		*tex_type = GL_UNSIGNED_BYTE;
+		*revert = is_upload ? REVERT_UPLOADING_A1 : REVERT_DOWNLOADING_A1;
+		break;
+
+	case PICT_a8:
+		*tex_format = GL_ALPHA;
+		*tex_type = GL_UNSIGNED_BYTE;
+		*revert = REVERT_NONE;
+		break;
+
+	case PICT_x4r4g4b4:
+		*no_alpha = 1;
+	case PICT_a4r4g4b4:
+		*tex_format = GL_RGBA;
+		*tex_type = GL_UNSIGNED_SHORT_4_4_4_4;
+		*revert = IS_LITTLE_ENDIAN ? REVERT_NORMAL : REVERT_NONE;
+		need_swap_rb = 1;
+		break;
+
+	case PICT_x4b4g4r4:
+		*no_alpha = 1;
+	case PICT_a4b4g4r4:
+		*tex_format = GL_RGBA;
+		*tex_type = GL_UNSIGNED_SHORT_4_4_4_4;
+		*revert = IS_LITTLE_ENDIAN ? REVERT_NORMAL : REVERT_NONE;
+		break;
+
+	default:
+		LogMessageVerb(X_INFO, 0,
+			       "fail to get matched format for %x \n",
+			       format);
+		return -1;
+	}
+
+	if (need_swap_rb)
+		*swap_rb = is_upload ? SWAP_UPLOADING : SWAP_DOWNLOADING;
+	else
+		*swap_rb = is_upload ? SWAP_NONE_UPLOADING : SWAP_NONE_DOWNLOADING;
+	return 0;
+}
+
+inline static int cache_format(GLenum format)
+{
+	switch (format) {
+	case GL_ALPHA:
+		return 2;
+	case GL_RGB:
+		return 1;
+	case GL_RGBA:
+		return 0;
+	default:
+		return -1;
+	}
+}
+
+#endif
+
+
+static inline int
+glamor_get_tex_format_type_from_pixmap(PixmapPtr pixmap,
+				       GLenum * format,
+				       GLenum * type,
+				       int *no_alpha,
+				       int *revert,
+				       int *swap_rb,
+				       int is_upload)
+{
+	glamor_pixmap_private *pixmap_priv;
+	PictFormatShort pict_format;
+
+	pixmap_priv = glamor_get_pixmap_private(pixmap);
+	if (GLAMOR_PIXMAP_PRIV_IS_PICTURE(pixmap_priv))
+		pict_format = pixmap_priv->base.picture->format;
+	else
+		pict_format = format_for_depth(pixmap->drawable.depth);
+
+	return glamor_get_tex_format_type_from_pictformat(pict_format,
+							  format, type,
+							  no_alpha,
+							  revert,
+							  swap_rb,
+							  is_upload);
+}
+
+
+/* borrowed from uxa */
+static inline Bool
+glamor_get_rgba_from_pixel(CARD32 pixel,
+			   float *red,
+			   float *green,
+			   float *blue, float *alpha, CARD32 format)
+{
+	int rbits, bbits, gbits, abits;
+	int rshift, bshift, gshift, ashift;
+
+	rbits = PICT_FORMAT_R(format);
+	gbits = PICT_FORMAT_G(format);
+	bbits = PICT_FORMAT_B(format);
+	abits = PICT_FORMAT_A(format);
+
+	if (PICT_FORMAT_TYPE(format) == PICT_TYPE_A) {
+		rshift = gshift = bshift = ashift = 0;
+	} else if (PICT_FORMAT_TYPE(format) == PICT_TYPE_ARGB) {
+		bshift = 0;
+		gshift = bbits;
+		rshift = gshift + gbits;
+		ashift = rshift + rbits;
+	} else if (PICT_FORMAT_TYPE(format) == PICT_TYPE_ABGR) {
+		rshift = 0;
+		gshift = rbits;
+		bshift = gshift + gbits;
+		ashift = bshift + bbits;
+#if XORG_VERSION_CURRENT >= 10699900
+	} else if (PICT_FORMAT_TYPE(format) == PICT_TYPE_BGRA) {
+		ashift = 0;
+		rshift = abits;
+		if (abits == 0)
+			rshift = PICT_FORMAT_BPP(format) - (rbits + gbits +
+							    bbits);
+		gshift = rshift + rbits;
+		bshift = gshift + gbits;
+#endif
+	} else {
+		return FALSE;
+	}
+#define COLOR_INT_TO_FLOAT(_fc_, _p_, _s_, _bits_)	\
+  *_fc_ = (((_p_) >> (_s_)) & (( 1 << (_bits_)) - 1))	\
+    / (float)((1<<(_bits_)) - 1)
+
+	if (rbits)
+		COLOR_INT_TO_FLOAT(red, pixel, rshift, rbits);
+	else
+		*red = 0;
+
+	if (gbits)
+		COLOR_INT_TO_FLOAT(green, pixel, gshift, gbits);
+	else
+		*green = 0;
+
+	if (bbits)
+		COLOR_INT_TO_FLOAT(blue, pixel, bshift, bbits);
+	else
+		*blue = 0;
+
+	if (abits)
+		COLOR_INT_TO_FLOAT(alpha, pixel, ashift, abits);
+	else
+		*alpha = 1;
+
+	return TRUE;
+}
+
+inline static Bool glamor_pict_format_is_compatible(PictFormatShort pict_format, int depth)
+{
+	GLenum iformat;
+
+	gl_iformat_for_depth(depth, &iformat);
+	switch (iformat) {
+		case GL_RGBA:
+			return (pict_format == PICT_a8r8g8b8 || pict_format == PICT_x8r8g8b8);
+		case GL_ALPHA:
+			return (pict_format == PICT_a8);
+		default:
+			return FALSE;
+	}
+}
+
+/* return TRUE if we can access this pixmap at DDX driver. */
+inline static Bool glamor_ddx_fallback_check_pixmap(DrawablePtr drawable)
+{
+	PixmapPtr pixmap = glamor_get_drawable_pixmap(drawable);
+	glamor_pixmap_private *pixmap_priv = glamor_get_pixmap_private(pixmap);
+	return (!pixmap_priv
+		|| (pixmap_priv->type == GLAMOR_TEXTURE_DRM
+		    || pixmap_priv->type == GLAMOR_MEMORY
+		    || pixmap_priv->type == GLAMOR_DRM_ONLY));
+}
+
+inline static Bool glamor_ddx_fallback_check_gc(GCPtr gc)
+{
+	PixmapPtr pixmap;
+	if (!gc)
+		return TRUE;
+        switch (gc->fillStyle) {
+        case FillStippled:
+        case FillOpaqueStippled:
+                pixmap = gc->stipple;
+                break;
+        case FillTiled:
+                pixmap = gc->tile.pixmap;
+                break;
+	default:
+		pixmap = NULL;
+        }
+	return (!pixmap || glamor_ddx_fallback_check_pixmap(&pixmap->drawable));
+}
+inline static Bool glamor_is_large_pixmap(PixmapPtr pixmap)
+{
+	glamor_pixmap_private *priv;
+
+	priv = glamor_get_pixmap_private(pixmap);
+	return (priv->type == GLAMOR_TEXTURE_LARGE);
+}
+
+inline static Bool glamor_is_large_picture(PicturePtr picture)
+{
+	PixmapPtr pixmap;
+
+	if (picture->pDrawable) {
+		pixmap = glamor_get_drawable_pixmap(picture->pDrawable);
+		return glamor_is_large_pixmap(pixmap);
+	}
+	return FALSE;
+}
+
+inline static Bool glamor_tex_format_is_readable(GLenum format)
+{
+	return ((format == GL_RGBA || format == GL_RGB || format == GL_ALPHA));
+
+}
+
+static inline void _glamor_dump_pixmap_bits(PixmapPtr pixmap, int x, int y, int w, int h)
+{
+	int i,j;
+	unsigned char * p = pixmap->devPrivate.ptr;
+	int stride = pixmap->devKind;
+
+	p = p + y * stride + x;
+
+	for (i = 0; i < h; i++)
+	{
+		ErrorF("line %3d: ", i);
+		for(j = 0; j < w; j++)
+			ErrorF("%2d ", (p[j/8] & (1 << (j%8)))>>(j%8));
+		p += stride;
+		ErrorF("\n");
+	}
+}
+
+static inline void _glamor_dump_pixmap_byte(PixmapPtr pixmap, int x, int y, int w, int h)
+{
+	int i,j;
+	unsigned char * p = pixmap->devPrivate.ptr;
+	int stride = pixmap->devKind;
+
+	p = p + y * stride + x;
+
+	for (i = 0; i < h; i++)
+	{
+		ErrorF("line %3d: ", i);
+		for(j = 0; j < w; j++)
+			ErrorF("%2x ", p[j]);
+		p += stride;
+		ErrorF("\n");
+	}
+}
+
+static inline void _glamor_dump_pixmap_sword(PixmapPtr pixmap, int x, int y, int w, int h)
+{
+	int i,j;
+	unsigned short * p = pixmap->devPrivate.ptr;
+	int stride = pixmap->devKind / 2;
+
+	p = p + y * stride + x;
+
+	for (i = 0; i < h; i++)
+	{
+		ErrorF("line %3d: ", i);
+		for(j = 0; j < w; j++)
+			ErrorF("%2x ", p[j]);
+		p += stride;
+		ErrorF("\n");
+	}
+}
+
+static inline void _glamor_dump_pixmap_word(PixmapPtr pixmap, int x, int y, int w, int h)
+{
+	int i,j;
+	unsigned int * p = pixmap->devPrivate.ptr;
+	int stride = pixmap->devKind / 4;
+
+	p = p + y * stride + x;
+
+	for (i = 0; i < h; i++)
+	{
+		ErrorF("line %3d: ", i);
+		for(j = 0; j < w; j++)
+			ErrorF("%2x ", p[j]);
+		p += stride;
+		ErrorF("\n");
+	}
+}
+
+static inline void glamor_dump_pixmap(PixmapPtr pixmap, int x, int y, int w, int h)
+{
+	w = ((x + w) > pixmap->drawable.width) ? (pixmap->drawable.width - x) : w;
+	h = ((y + h) > pixmap->drawable.height) ? (pixmap->drawable.height - y) : h;
+
+	glamor_prepare_access(&pixmap->drawable, GLAMOR_ACCESS_RO);
+	switch (pixmap->drawable.depth) {
+	case 8:
+		_glamor_dump_pixmap_byte(pixmap, x, y, w, h);
+		break;
+	case 15:
+	case 16:
+		_glamor_dump_pixmap_sword(pixmap, x, y, w, h);
+		break;
+
+	case 24:
+	case 32:
+		_glamor_dump_pixmap_word(pixmap, x, y, w, h);
+		break;
+	case 1:
+		_glamor_dump_pixmap_bits(pixmap, x, y, w, h);
+		break;
+	default:
+		ErrorF("dump depth %d, not implemented.\n", pixmap->drawable.depth);
+	}
+	glamor_finish_access(&pixmap->drawable, GLAMOR_ACCESS_RO);
+}
+
+static inline void _glamor_compare_pixmaps(PixmapPtr pixmap1, PixmapPtr pixmap2,
+                                           int x, int y, int w, int h,
+                                           PictFormatShort short_format,
+                                           int all, int diffs)
+{
+	int i, j;
+	unsigned char * p1 = pixmap1->devPrivate.ptr;
+	unsigned char * p2 = pixmap2->devPrivate.ptr;
+	int line_need_printed = 0;
+	int test_code = 0xAABBCCDD;
+	int little_endian = 0;
+	unsigned char *p_test;
+	int bpp = pixmap1->drawable.depth == 8 ? 1 : 4;
+	int stride = pixmap1->devKind;
+
+	assert(pixmap1->devKind == pixmap2->devKind);
+
+	ErrorF("stride:%d, width:%d, height:%d\n", stride, w, h);
+
+	p1 = p1 + y * stride + x;
+	p2 = p2 + y * stride + x;
+
+	if (all) {
+		for (i = 0; i < h; i++) {
+			ErrorF("line %3d: ", i);
+
+			for (j = 0; j < stride; j++) {
+				if (j % bpp == 0)
+					ErrorF("[%d]%2x:%2x ", j / bpp, p1[j], p2[j]);
+				else
+					ErrorF("%2x:%2x ", p1[j], p2[j]);
+			}
+
+			p1 += stride;
+			p2 += stride;
+			ErrorF("\n");
+		}
+	} else {
+		if (short_format == PICT_a8r8g8b8) {
+			p_test = (unsigned char *) & test_code;
+			little_endian = (*p_test == 0xDD);
+			bpp = 4;
+
+			for (i = 0; i < h; i++) {
+				line_need_printed = 0;
+
+				for (j = 0; j < stride; j++) {
+					if (p1[j] != p2[j] && (p1[j] - p2[j] > diffs || p2[j] - p1[j] > diffs)) {
+						if (line_need_printed) {
+							if (little_endian) {
+								switch (j % 4) {
+									case 2:
+										ErrorF("[%d]RED:%2x:%2x ", j / bpp, p1[j], p2[j]);
+										break;
+									case 1:
+										ErrorF("[%d]GREEN:%2x:%2x ", j / bpp, p1[j], p2[j]);
+										break;
+									case 0:
+										ErrorF("[%d]BLUE:%2x:%2x ", j / bpp, p1[j], p2[j]);
+										break;
+									case 3:
+										ErrorF("[%d]Alpha:%2x:%2x ", j / bpp, p1[j], p2[j]);
+										break;
+								}
+							} else {
+								switch (j % 4) {
+									case 1:
+										ErrorF("[%d]RED:%2x:%2x ", j / bpp, p1[j], p2[j]);
+										break;
+									case 2:
+										ErrorF("[%d]GREEN:%2x:%2x ", j / bpp, p1[j], p2[j]);
+										break;
+									case 3:
+										ErrorF("[%d]BLUE:%2x:%2x ", j / bpp, p1[j], p2[j]);
+										break;
+									case 0:
+										ErrorF("[%d]Alpha:%2x:%2x ", j / bpp, p1[j], p2[j]);
+										break;
+								}
+							}
+						} else {
+							line_need_printed = 1;
+							j = -1;
+							ErrorF("line %3d: ", i);
+							continue;
+						}
+					}
+				}
+
+				p1 += stride;
+				p2 += stride;
+				ErrorF("\n");
+			}
+		} //more format can be added here.
+		else { // the default format, just print.
+			for (i = 0; i < h; i++) {
+				line_need_printed = 0;
+
+				for (j = 0; j < stride; j++) {
+					if (p1[j] != p2[j]) {
+						if (line_need_printed) {
+							ErrorF("[%d]%2x:%2x ", j / bpp, p1[j], p2[j]);
+						} else {
+							line_need_printed = 1;
+							j = -1;
+							ErrorF("line %3d: ", i);
+							continue;
+						}
+					}
+				}
+
+				p1 += stride;
+				p2 += stride;
+				ErrorF("\n");
+			}
+		}
+	}
+}
+
+static inline void glamor_compare_pixmaps(PixmapPtr pixmap1, PixmapPtr pixmap2,
+                                          int x, int y, int w, int h, int all, int diffs)
+{
+	assert(pixmap1->drawable.depth == pixmap2->drawable.depth);
+
+	glamor_prepare_access(&pixmap1->drawable, GLAMOR_ACCESS_RO);
+	glamor_prepare_access(&pixmap2->drawable, GLAMOR_ACCESS_RO);
+
+	_glamor_compare_pixmaps(pixmap1, pixmap2, x, y, w, h, -1, all, diffs);
+
+	glamor_finish_access(&pixmap1->drawable, GLAMOR_ACCESS_RO);
+	glamor_finish_access(&pixmap2->drawable, GLAMOR_ACCESS_RO);
+}
+
+/* This function is used to compare two pictures.
+   If the picture has no drawable, we use fb functions to generate it. */
+static inline void glamor_compare_pictures( ScreenPtr screen,
+                                            PicturePtr fst_picture,
+                                            PicturePtr snd_picture,
+                                            int x_source, int y_source,
+                                            int width, int height,
+                                            int all, int diffs)
+{
+	PixmapPtr fst_pixmap;
+	PixmapPtr snd_pixmap;
+	int fst_generated, snd_generated;
+	int error;
+	int fst_type = -1;
+	int snd_type = -1; // -1 represent has drawable.
+
+	if (fst_picture->format != snd_picture->format) {
+		ErrorF("Different picture format can not compare!\n");
+		return;
+	}
+
+	if (!fst_picture->pDrawable) {
+		fst_type = fst_picture->pSourcePict->type;
+	}
+
+	if (!snd_picture->pDrawable) {
+		snd_type = snd_picture->pSourcePict->type;
+	}
+
+	if ((fst_type != -1) && (snd_type != -1) && (fst_type != snd_type)) {
+		ErrorF("Different picture type will never be same!\n");
+		return;
+	}
+
+	fst_generated = snd_generated = 0;
+
+	if (!fst_picture->pDrawable) {
+		PicturePtr pixman_pic;
+		PixmapPtr pixmap = NULL;
+		PictFormatShort format;
+
+		format = fst_picture->format;
+
+		pixmap = glamor_create_pixmap(screen,
+		                              width, height,
+		                              PIXMAN_FORMAT_DEPTH(format),
+		                              GLAMOR_CREATE_PIXMAP_CPU);
+
+		pixman_pic = CreatePicture(0,
+		                           &pixmap->drawable,
+		                           PictureMatchFormat(screen,
+		                               PIXMAN_FORMAT_DEPTH(format), format),
+		                           0, 0, serverClient, &error);
+
+		fbComposite(PictOpSrc, fst_picture, NULL, pixman_pic,
+		            x_source, y_source,
+		            0, 0,
+		            0, 0,
+		            width, height);
+
+		glamor_destroy_pixmap(pixmap);
+
+		fst_picture = pixman_pic;
+		fst_generated = 1;
+	}
+
+	if (!snd_picture->pDrawable) {
+		PicturePtr pixman_pic;
+		PixmapPtr pixmap = NULL;
+		PictFormatShort format;
+
+		format = snd_picture->format;
+
+		pixmap = glamor_create_pixmap(screen,
+		                              width, height,
+		                              PIXMAN_FORMAT_DEPTH(format),
+		                              GLAMOR_CREATE_PIXMAP_CPU);
+
+		pixman_pic = CreatePicture(0,
+		                           &pixmap->drawable,
+		                           PictureMatchFormat(screen,
+		                               PIXMAN_FORMAT_DEPTH(format), format),
+		                           0, 0, serverClient, &error);
+
+		fbComposite(PictOpSrc, snd_picture, NULL, pixman_pic,
+		            x_source, y_source,
+		            0, 0,
+		            0, 0,
+		            width, height);
+
+		glamor_destroy_pixmap(pixmap);
+
+		snd_picture = pixman_pic;
+		snd_generated = 1;
+	}
+
+	fst_pixmap = glamor_get_drawable_pixmap(fst_picture->pDrawable);
+	snd_pixmap = glamor_get_drawable_pixmap(snd_picture->pDrawable);
+
+	if (fst_pixmap->drawable.depth != snd_pixmap->drawable.depth) {
+		if (fst_generated)
+			glamor_destroy_picture(fst_picture);
+		if (snd_generated)
+			glamor_destroy_picture(snd_picture);
+
+		ErrorF("Different pixmap depth can not compare!\n");
+		return;
+	}
+
+	glamor_prepare_access(&fst_pixmap->drawable, GLAMOR_ACCESS_RO);
+	glamor_prepare_access(&snd_pixmap->drawable, GLAMOR_ACCESS_RO);
+
+	if ((fst_type == SourcePictTypeLinear) ||
+	     (fst_type == SourcePictTypeRadial) ||
+	     (fst_type == SourcePictTypeConical) ||
+	     (snd_type == SourcePictTypeLinear) ||
+	     (snd_type == SourcePictTypeRadial) ||
+	     (snd_type == SourcePictTypeConical)) {
+		x_source = y_source = 0;
+	}
+
+	_glamor_compare_pixmaps(fst_pixmap, snd_pixmap,
+	                        x_source, y_source,
+	                        width, height,
+	                        fst_picture->format, all, diffs);
+
+	glamor_finish_access(&fst_pixmap->drawable, GLAMOR_ACCESS_RO);
+	glamor_finish_access(&snd_pixmap->drawable, GLAMOR_ACCESS_RO);
+
+	if (fst_generated)
+		glamor_destroy_picture(fst_picture);
+	if (snd_generated)
+		glamor_destroy_picture(snd_picture);
+
+	return;
+}
+
+#ifdef __i386__
+static inline unsigned long __fls(unsigned long x)
+{
+        asm("bsr %1,%0"
+            : "=r" (x)
+            : "rm" (x));
+        return x;
+}
+#else
+static inline unsigned long __fls(unsigned long x)
+{
+   int n;
+
+   if (x == 0) return(0);
+   n = 0;
+   if (x <= 0x0000FFFF) {n = n +16; x = x <<16;}
+   if (x <= 0x00FFFFFF) {n = n + 8; x = x << 8;}
+   if (x <= 0x0FFFFFFF) {n = n + 4; x = x << 4;}
+   if (x <= 0x3FFFFFFF) {n = n + 2; x = x << 2;}
+   if (x <= 0x7FFFFFFF) {n = n + 1;}
+   return 31 - n;
+}
+#endif
+
+static inline void glamor_make_current(ScreenPtr screen)
+{
+	glamor_egl_make_current(screen);
+}
+
+static inline void glamor_restore_current(ScreenPtr screen)
+{
+	glamor_egl_restore_context(screen);
+}
+
+#ifdef GLX_USE_SHARED_DISPATCH
+static inline glamor_gl_dispatch *
+glamor_get_dispatch(glamor_screen_private *glamor_priv)
+{
+	if (glamor_priv->flags & GLAMOR_USE_EGL_SCREEN)
+		glamor_make_current(glamor_priv->screen);
+
+	return &glamor_priv->_dispatch;
+}
+
+static inline void
+glamor_put_dispatch(glamor_screen_private *glamor_priv)
+{
+	if (glamor_priv->flags & GLAMOR_USE_EGL_SCREEN)
+		glamor_restore_current(glamor_priv->screen);
+}
+#else
+#warning "Indirect GLX may be broken, need to implement context switch."
+static inline glamor_gl_dispatch *
+glamor_get_dispatch(glamor_screen_private *glamor_priv)
+{
+	return &glamor_priv->_dispatch;
+}
+
+static inline void
+glamor_put_dispatch(glamor_screen_private *glamor_priv)
+{
+}
+
+#endif
+
+#endif
diff --git a/glamor/glamor_window.c b/glamor/glamor_window.c
new file mode 100644
index 000000000..b67c72880
--- /dev/null
+++ b/glamor/glamor_window.c
@@ -0,0 +1,103 @@
+/*
+ * Copyright © 2008 Intel Corporation
+ * Copyright © 1998 Keith Packard
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation, and that the name of Keith Packard not be used in
+ * advertising or publicity pertaining to distribution of the software without
+ * specific, written prior permission.  Keith Packard makes no
+ * representations about the suitability of this software for any purpose.  It
+ * is provided "as is" without express or implied warranty.
+ *
+ * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "glamor_priv.h"
+
+/** @file glamor_window.c
+ *
+ * Screen Change Window Attribute implementation.
+ */
+
+
+static void
+glamor_fixup_window_pixmap(DrawablePtr pDrawable, PixmapPtr * ppPixmap)
+{
+	PixmapPtr pPixmap = *ppPixmap;
+	glamor_pixmap_private *pixmap_priv;
+
+	if (pPixmap->drawable.bitsPerPixel != pDrawable->bitsPerPixel) {
+		pixmap_priv = glamor_get_pixmap_private(pPixmap);
+		if (!GLAMOR_PIXMAP_PRIV_HAS_FBO(pixmap_priv)) {
+			glamor_fallback("pixmap %p has no fbo\n", pPixmap);
+			goto fail;
+		}
+		glamor_debug_output(GLAMOR_DEBUG_UNIMPL,
+				    "To be implemented.\n");
+	}
+	return;
+
+      fail:
+	GLAMOR_PANIC
+	    (" We can't fall back to fbFixupWindowPixmap, as the fb24_32ReformatTile"
+	     " is broken for glamor. \n");
+}
+
+Bool
+glamor_change_window_attributes(WindowPtr pWin, unsigned long mask)
+{
+	if (mask & CWBackPixmap) {
+		if (pWin->backgroundState == BackgroundPixmap)
+			glamor_fixup_window_pixmap(&pWin->drawable,
+						   &pWin->
+						   background.pixmap);
+	}
+
+	if (mask & CWBorderPixmap) {
+		if (pWin->borderIsPixel == FALSE)
+			glamor_fixup_window_pixmap(&pWin->drawable,
+						   &pWin->border.pixmap);
+	}
+	return TRUE;
+}
+
+void
+glamor_set_window_pixmap(WindowPtr win, PixmapPtr pPixmap)
+{
+	ScreenPtr screen = win->drawable.pScreen;
+	glamor_screen_private *glamor_priv =
+		glamor_get_screen_private(screen);
+	PixmapPtr old = screen->GetWindowPixmap(win);
+
+	if (pPixmap != old) {
+		glamor_pixmap_private *pixmap_priv;
+		PicturePtr pic = NULL;
+
+		pixmap_priv = glamor_get_pixmap_private(old);
+		if (GLAMOR_PIXMAP_PRIV_IS_PICTURE(pixmap_priv) && pixmap_priv->base.picture->pDrawable == (DrawablePtr)win) {
+			pic = pixmap_priv->base.picture;
+			pixmap_priv->base.is_picture = 0;
+			pixmap_priv->base.picture = NULL;
+		}
+
+		pixmap_priv = glamor_get_pixmap_private(pPixmap);
+		if (pixmap_priv) {
+			pixmap_priv->base.is_picture = !!pic;
+			pixmap_priv->base.picture = pic;
+		}
+	}
+
+	screen->SetWindowPixmap = glamor_priv->saved_procs.set_window_pixmap;
+	(screen->SetWindowPixmap)(win, pPixmap);
+	glamor_priv->saved_procs.set_window_pixmap = screen->SetWindowPixmap;
+	screen->SetWindowPixmap = glamor_set_window_pixmap;
+}
diff --git a/glamor/glamor_xv.c b/glamor/glamor_xv.c
new file mode 100644
index 000000000..a89b4cd3f
--- /dev/null
+++ b/glamor/glamor_xv.c
@@ -0,0 +1,645 @@
+/*
+ * Copyright © 2013 Red Hat
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ *
+ * Authors:
+ *      Dave Airlie <airlied@redhat.com>
+ *
+ * some code is derived from the xf86-video-ati radeon driver, mainly
+ * the calculations.
+ */
+
+/** @file glamor_xv.c
+ *
+ * Xv acceleration implementation
+ */
+
+#include "glamor_priv.h"
+
+#ifdef GLAMOR_XV
+#include "xf86xv.h"
+#include <X11/extensions/Xv.h>
+#include "fourcc.h"
+/* Reference color space transform data */
+typedef struct tagREF_TRANSFORM
+{
+	float   RefLuma;
+	float   RefRCb;
+	float   RefRCr;
+	float   RefGCb;
+	float   RefGCr;
+	float   RefBCb;
+	float   RefBCr;
+} REF_TRANSFORM;
+
+#define RTFSaturation(a)   (1.0 + ((a)*1.0)/1000.0)
+#define RTFBrightness(a)   (((a)*1.0)/2000.0)
+#define RTFIntensity(a)   (((a)*1.0)/2000.0)
+#define RTFContrast(a)   (1.0 + ((a)*1.0)/1000.0)
+#define RTFHue(a)   (((a)*3.1416)/1000.0)
+
+static const char *xv_vs= "attribute vec4 v_position;\n"
+	"attribute vec4 v_texcoord0;\n"
+	"varying vec2 tcs;\n"
+	"void main()\n" "{\n" "     gl_Position = v_position;\n"
+	"tcs = v_texcoord0.xy;\n"
+	"}\n";
+
+static const char *xv_ps = GLAMOR_DEFAULT_PRECISION
+	"uniform sampler2D y_sampler;\n"
+	"uniform sampler2D u_sampler;\n"
+	"uniform sampler2D v_sampler;\n"
+	"uniform vec4 offsetyco;\n"
+	"uniform vec4 ucogamma;\n"
+	"uniform vec4 vco;\n"
+	"varying vec2 tcs;\n"
+	"float sample;\n"
+	"vec4 temp1;\n"
+	"void main()\n" "{\n"
+	"sample = texture2D(y_sampler, tcs).w;\n"
+	"temp1.xyz = offsetyco.www * vec3(sample) + offsetyco.xyz;\n"
+	"sample = texture2D(u_sampler, tcs).w;\n"
+	"temp1.xyz = ucogamma.xyz * vec3(sample) + temp1.xyz;\n"
+	"sample = texture2D(v_sampler, tcs).w;\n"
+	"temp1.xyz = clamp(vco.xyz * vec3(sample) + temp1.xyz, 0.0, 1.0);\n"
+	"temp1.w = 1.0;\n"
+	"gl_FragColor = temp1;\n"
+	"}\n";
+
+void
+glamor_init_xv_shader(ScreenPtr screen)
+{
+	glamor_screen_private *glamor_priv;
+	glamor_gl_dispatch *dispatch;
+	GLint fs_prog, vs_prog;
+
+	glamor_priv = glamor_get_screen_private(screen);
+	dispatch =  glamor_get_dispatch(glamor_priv);
+	glamor_priv->xv_prog = dispatch->glCreateProgram();
+
+	vs_prog = glamor_compile_glsl_prog(dispatch, GL_VERTEX_SHADER, xv_vs);
+	fs_prog = glamor_compile_glsl_prog(dispatch, GL_FRAGMENT_SHADER, xv_ps);
+	dispatch->glAttachShader(glamor_priv->xv_prog, vs_prog);
+	dispatch->glAttachShader(glamor_priv->xv_prog, fs_prog);
+
+	dispatch->glBindAttribLocation(glamor_priv->xv_prog,
+				       GLAMOR_VERTEX_POS, "v_position");
+	dispatch->glBindAttribLocation(glamor_priv->xv_prog,
+				       GLAMOR_VERTEX_SOURCE, "v_texcoord0");
+	glamor_link_glsl_prog(dispatch, glamor_priv->xv_prog);
+
+	glamor_put_dispatch(glamor_priv);
+}
+
+void
+glamor_fini_xv_shader(ScreenPtr screen)
+{
+	glamor_screen_private *glamor_priv;
+	glamor_gl_dispatch *dispatch;
+
+	glamor_priv = glamor_get_screen_private(screen);
+	dispatch =  glamor_get_dispatch(glamor_priv);
+
+	dispatch->glDeleteProgram(glamor_priv->xv_prog);
+	glamor_put_dispatch(glamor_priv);
+}
+
+#define ClipValue(v,min,max) ((v) < (min) ? (min) : (v) > (max) ? (max) : (v))
+#define MAKE_ATOM(a) MakeAtom(a, sizeof(a) - 1, TRUE)
+
+static Atom xvBrightness, xvContrast, xvSaturation, xvHue, xvColorspace, xvGamma;
+
+#define NUM_ATTRIBUTES 5
+static XF86AttributeRec Attributes_glamor[NUM_ATTRIBUTES+1] =
+{
+    {XvSettable | XvGettable, -1000, 1000, "XV_BRIGHTNESS"},
+    {XvSettable | XvGettable, -1000, 1000, "XV_CONTRAST"},
+    {XvSettable | XvGettable, -1000, 1000, "XV_SATURATION"},
+    {XvSettable | XvGettable, -1000, 1000, "XV_HUE"},
+    {XvSettable | XvGettable, 0, 1, "XV_COLORSPACE"},
+    {0, 0, 0, NULL}
+	    };
+
+#define NUM_FORMATS 3
+
+static XF86VideoFormatRec Formats[NUM_FORMATS] =
+{
+    {15, TrueColor}, {16, TrueColor}, {24, TrueColor}
+	    };
+
+#define NUM_IMAGES 2
+
+static XF86ImageRec Images[NUM_IMAGES] =
+{
+XVIMAGE_YV12,
+	XVIMAGE_I420,
+	};
+
+static void
+glamor_xv_stop_video(ScrnInfoPtr pScrn, pointer data, Bool cleanup)
+{
+glamor_port_private *port_priv = (glamor_port_private *)data;
+int i;
+if (!cleanup)
+	return;
+
+for (i = 0; i < 3; i++) {
+if (port_priv->src_pix[i]) {
+glamor_destroy_pixmap(port_priv->src_pix[i]);
+port_priv->src_pix[i] = NULL;
+}
+}
+}
+
+static int
+glamor_xv_set_port_attribute(ScrnInfoPtr  pScrn,
+				     Atom	    attribute,
+				     INT32	    value,
+				     pointer	    data)
+{
+glamor_port_private *port_priv = (glamor_port_private *)data;
+if (attribute == xvBrightness)
+	port_priv->brightness = ClipValue(value, -1000, 1000);
+else if (attribute == xvHue)
+	port_priv->hue = ClipValue(value, -1000, 1000);
+else if (attribute == xvContrast)
+	port_priv->contrast = ClipValue(value, -1000, 1000);
+else if (attribute == xvSaturation)
+	port_priv->saturation = ClipValue(value, -1000, 1000);
+else if (attribute == xvGamma)
+	port_priv->gamma = ClipValue (value, 100, 10000);
+else if(attribute == xvColorspace)
+	port_priv->transform_index = ClipValue (value, 0, 1);
+else
+	return BadMatch;
+return Success;
+}
+
+static int
+glamor_xv_get_port_attribute(ScrnInfoPtr  pScrn,
+				     Atom	    attribute,
+				     INT32	    *value,
+				     pointer	    data)
+{
+glamor_port_private *port_priv = (glamor_port_private *)data;
+if (attribute == xvBrightness)
+	*value = port_priv->brightness;
+else if (attribute == xvHue)
+	*value = port_priv->hue;
+else if (attribute == xvContrast)
+	*value = port_priv->contrast;
+else if (attribute == xvSaturation)
+	*value = port_priv->saturation;
+else if (attribute == xvGamma)
+	*value = port_priv->gamma;
+else if(attribute == xvColorspace)
+	*value = port_priv->transform_index;
+else
+	return BadMatch;
+
+return Success;
+}
+
+static void
+glamor_xv_query_best_size(ScrnInfoPtr pScrn,
+				  Bool motion,
+				  short vid_w, short vid_h,
+				  short drw_w, short drw_h,
+				  unsigned int *p_w, unsigned int *p_h,
+				  pointer data)
+{
+*p_w = drw_w;
+*p_h = drw_h;
+}
+
+static int
+glamor_xv_query_image_attributes(ScrnInfoPtr pScrn,
+					 int id,
+					 unsigned short *w, unsigned short *h,
+					 int *pitches, int *offsets)
+{
+int size = 0, tmp;
+
+if (offsets) offsets[0] = 0;
+switch (id) {
+case FOURCC_YV12:
+case FOURCC_I420:
+*h = *h;
+*w = *w;
+size = *w;
+if (pitches) pitches[0] = size;
+size *= *h;
+if (offsets) offsets[1] = size;
+tmp = *w >> 1;
+if (pitches) pitches[1] = pitches[2] = tmp;
+tmp *= (*h >> 1);
+size += tmp;
+if (offsets) offsets[2] = size;
+size += tmp;
+break;
+}
+return size;
+}
+/* Parameters for ITU-R BT.601 and ITU-R BT.709 colour spaces
+   note the difference to the parameters used in overlay are due
+   to 10bit vs. float calcs */
+static REF_TRANSFORM trans[2] =
+{
+    {1.1643, 0.0, 1.5960, -0.3918, -0.8129, 2.0172, 0.0}, /* BT.601 */
+    {1.1643, 0.0, 1.7927, -0.2132, -0.5329, 2.1124, 0.0}  /* BT.709 */
+	    };
+
+static void
+glamor_display_textured_video(glamor_port_private *port_priv)
+{
+ScreenPtr screen = port_priv->pPixmap->drawable.pScreen;
+glamor_screen_private *glamor_priv =
+	glamor_get_screen_private(screen);
+glamor_pixmap_private *pixmap_priv =
+	glamor_get_pixmap_private(port_priv->pPixmap);
+glamor_pixmap_private *src_pixmap_priv[3];
+glamor_gl_dispatch *dispatch;
+float vertices[32], texcoords[8];
+BoxPtr box = REGION_RECTS(&port_priv->clip);
+int nBox = REGION_NUM_RECTS(&port_priv->clip);
+int dst_x_off, dst_y_off;
+GLfloat dst_xscale, dst_yscale;
+GLfloat src_xscale[3], src_yscale[3];
+int i;
+const float Loff = -0.0627;
+const float Coff = -0.502;
+float uvcosf, uvsinf;
+float yco;
+float uco[3], vco[3], off[3];
+float bright, cont, gamma;
+int ref = port_priv->transform_index;
+GLint uloc, sampler_loc;
+
+cont = RTFContrast(port_priv->contrast);
+bright = RTFBrightness(port_priv->brightness);
+gamma = (float)port_priv->gamma / 1000.0;
+uvcosf = RTFSaturation(port_priv->saturation) * cos(RTFHue(port_priv->hue));
+uvsinf = RTFSaturation(port_priv->saturation) * sin(RTFHue(port_priv->hue));
+/* overlay video also does pre-gamma contrast/sat adjust, should we? */
+
+yco = trans[ref].RefLuma * cont;
+uco[0] = -trans[ref].RefRCr * uvsinf;
+uco[1] = trans[ref].RefGCb * uvcosf - trans[ref].RefGCr * uvsinf;
+uco[2] = trans[ref].RefBCb * uvcosf;
+vco[0] = trans[ref].RefRCr * uvcosf;
+vco[1] = trans[ref].RefGCb * uvsinf + trans[ref].RefGCr * uvcosf;
+vco[2] = trans[ref].RefBCb * uvsinf;
+off[0] = Loff * yco + Coff * (uco[0] + vco[0]) + bright;
+off[1] = Loff * yco + Coff * (uco[1] + vco[1]) + bright;
+off[2] = Loff * yco + Coff * (uco[2] + vco[2]) + bright;
+gamma = 1.0;
+
+pixmap_priv_get_dest_scale(pixmap_priv, &dst_xscale, &dst_yscale);
+glamor_get_drawable_deltas(port_priv->pDraw, port_priv->pPixmap, &dst_x_off,
+				   &dst_y_off);
+glamor_set_destination_pixmap_priv_nc(pixmap_priv);
+
+for (i = 0; i < 3; i++) {
+if (port_priv->src_pix[i]) {
+src_pixmap_priv[i] = glamor_get_pixmap_private(port_priv->src_pix[i]);
+pixmap_priv_get_scale(src_pixmap_priv[i], &src_xscale[i], &src_yscale[i]);
+}
+}
+dispatch = glamor_get_dispatch(glamor_priv);
+dispatch->glUseProgram(glamor_priv->xv_prog);
+
+uloc = dispatch->glGetUniformLocation(glamor_priv->xv_prog, "offsetyco");
+dispatch->glUniform4f(uloc, off[0], off[1], off[2], yco);
+uloc = dispatch->glGetUniformLocation(glamor_priv->xv_prog, "ucogamma");
+dispatch->glUniform4f(uloc, uco[0], uco[1], uco[2], gamma);
+uloc = dispatch->glGetUniformLocation(glamor_priv->xv_prog, "vco");
+dispatch->glUniform4f(uloc, vco[0], vco[1], vco[2], 0);
+
+dispatch->glActiveTexture(GL_TEXTURE0);
+dispatch->glBindTexture(GL_TEXTURE_2D, src_pixmap_priv[0]->base.fbo->tex);
+dispatch->glTexParameteri(GL_TEXTURE_2D,
+				  GL_TEXTURE_MIN_FILTER,
+				  GL_LINEAR);
+dispatch->glTexParameteri(GL_TEXTURE_2D,
+				  GL_TEXTURE_MAG_FILTER,
+				  GL_LINEAR);
+dispatch->glTexParameteri(GL_TEXTURE_2D,
+				  GL_TEXTURE_WRAP_S,
+				  GL_CLAMP_TO_EDGE);
+dispatch->glTexParameteri(GL_TEXTURE_2D,
+				  GL_TEXTURE_WRAP_T,
+				  GL_CLAMP_TO_EDGE);
+
+dispatch->glActiveTexture(GL_TEXTURE1);
+dispatch->glBindTexture(GL_TEXTURE_2D, src_pixmap_priv[1]->base.fbo->tex);
+dispatch->glTexParameteri(GL_TEXTURE_2D,
+				  GL_TEXTURE_MIN_FILTER,
+				  GL_LINEAR);
+dispatch->glTexParameteri(GL_TEXTURE_2D,
+				  GL_TEXTURE_MAG_FILTER,
+				  GL_LINEAR);
+dispatch->glTexParameteri(GL_TEXTURE_2D,
+				  GL_TEXTURE_WRAP_S,
+				  GL_CLAMP_TO_EDGE);
+dispatch->glTexParameteri(GL_TEXTURE_2D,
+				  GL_TEXTURE_WRAP_T,
+				  GL_CLAMP_TO_EDGE);
+
+dispatch->glActiveTexture(GL_TEXTURE2);
+dispatch->glBindTexture(GL_TEXTURE_2D, src_pixmap_priv[2]->base.fbo->tex);
+dispatch->glTexParameteri(GL_TEXTURE_2D,
+				  GL_TEXTURE_MIN_FILTER,
+				  GL_LINEAR);
+dispatch->glTexParameteri(GL_TEXTURE_2D,
+				  GL_TEXTURE_MAG_FILTER,
+				  GL_LINEAR);
+dispatch->glTexParameteri(GL_TEXTURE_2D,
+				  GL_TEXTURE_WRAP_S,
+				  GL_CLAMP_TO_EDGE);
+dispatch->glTexParameteri(GL_TEXTURE_2D,
+				  GL_TEXTURE_WRAP_T,
+				  GL_CLAMP_TO_EDGE);
+
+sampler_loc = dispatch->glGetUniformLocation(glamor_priv->xv_prog, "y_sampler");
+dispatch->glUniform1i(sampler_loc, 0);
+sampler_loc = dispatch->glGetUniformLocation(glamor_priv->xv_prog, "u_sampler");
+dispatch->glUniform1i(sampler_loc, 1);
+sampler_loc = dispatch->glGetUniformLocation(glamor_priv->xv_prog, "v_sampler");
+dispatch->glUniform1i(sampler_loc, 2);
+
+dispatch->glVertexAttribPointer(GLAMOR_VERTEX_SOURCE, 2,
+					GL_FLOAT, GL_FALSE,
+					2 * sizeof(float),
+					texcoords);
+dispatch->glEnableVertexAttribArray(GLAMOR_VERTEX_SOURCE);
+
+dispatch->glVertexAttribPointer(GLAMOR_VERTEX_POS, 2, GL_FLOAT,
+					GL_FALSE, 2 * sizeof(float),
+					vertices);
+
+dispatch->glEnableVertexAttribArray(GLAMOR_VERTEX_POS);
+for (i = 0; i < nBox; i++) {
+float off_x = box[i].x1 - port_priv->drw_x;
+float off_y = box[i].y1 - port_priv->drw_y;
+float diff_x = (float)port_priv->src_w / (float)port_priv->dst_w;
+float diff_y = (float)port_priv->src_h / (float)port_priv->dst_h;
+float srcx, srcy, srcw, srch;
+int dstx, dsty, dstw, dsth;
+
+
+dstx = box[i].x1 + dst_x_off;
+dsty = box[i].y1 + dst_y_off;
+dstw = box[i].x2 - box[i].x1;
+dsth = box[i].y2 - box[i].y1;
+
+srcx = port_priv->src_x + off_x * diff_x;
+srcy = port_priv->src_y + off_y * diff_y;
+srcw = (port_priv->src_w * dstw) / (float)port_priv->dst_w;
+srch = (port_priv->src_h * dsth) / (float)port_priv->dst_h;
+
+glamor_set_normalize_vcoords(pixmap_priv,
+				     dst_xscale, dst_yscale,
+			     dstx,
+			     dsty,
+			     dstx + dstw,
+			     dsty + dsth,
+			     glamor_priv->yInverted,
+			     vertices);
+
+glamor_set_normalize_tcoords(src_pixmap_priv[0],
+			     src_xscale[0],
+			     src_yscale[0],
+			     srcx,
+			     srcy,
+			     srcx + srcw,
+			     srcy + srch,
+			     glamor_priv->yInverted,
+			     texcoords);
+
+dispatch->glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
+}
+
+dispatch->glDisableVertexAttribArray(GLAMOR_VERTEX_POS);
+dispatch->glDisableVertexAttribArray(GLAMOR_VERTEX_SOURCE);
+
+dispatch->glUseProgram(0);
+glamor_put_dispatch(glamor_priv);
+DamageDamageRegion(port_priv->pDraw, &port_priv->clip);
+}
+
+static int glamor_xv_put_image(ScrnInfoPtr pScrn,
+			       short src_x, short src_y,
+			       short drw_x, short drw_y,
+			       short src_w, short src_h,
+			       short drw_w, short drw_h,
+			       int id,
+			       unsigned char *buf,
+			       short width,
+			       short height,
+			       Bool sync,
+			       RegionPtr clipBoxes,
+			       pointer data,
+			       DrawablePtr pDrawable)
+{
+	ScreenPtr screen = xf86ScrnToScreen(pScrn);
+	glamor_port_private *port_priv = (glamor_port_private *)data;
+	INT32 x1, x2, y1, y2;
+	int srcPitch, srcPitch2;
+	BoxRec dstBox;
+	int top, nlines;
+	int s2offset, s3offset, tmp;
+
+	s2offset = s3offset = srcPitch2 = 0;
+
+	/* Clip */
+	x1 = src_x;
+	x2 = src_x + src_w;
+	y1 = src_y;
+	y2 = src_y + src_h;
+
+	dstBox.x1 = drw_x;
+	dstBox.x2 = drw_x + drw_w;
+	dstBox.y1 = drw_y;
+	dstBox.y2 = drw_y + drw_h;
+	if (!xf86XVClipVideoHelper(&dstBox, &x1, &x2, &y1, &y2, clipBoxes, width, height))
+		return Success;
+
+	if ((x1 >= x2) || (y1 >= y2))
+		return Success;
+
+	srcPitch = width;
+	srcPitch2 = width >> 1;
+
+	if (!port_priv->src_pix[0] || (width != port_priv->src_pix_w || height != port_priv->src_pix_h)) {
+		int i;
+		for (i = 0; i < 3; i++)
+			if (port_priv->src_pix[i])
+				glamor_destroy_pixmap(port_priv->src_pix[i]);
+
+		port_priv->src_pix[0] = glamor_create_pixmap(screen, width, height, 8, 0);
+		port_priv->src_pix[1] = glamor_create_pixmap(screen, width >> 1, height >> 1, 8, 0);
+		port_priv->src_pix[2] = glamor_create_pixmap(screen, width >> 1, height >> 1, 8, 0);
+		port_priv->src_pix_w = width;
+		port_priv->src_pix_h = height;
+
+		if (!port_priv->src_pix[0] || !port_priv->src_pix[1] || !port_priv->src_pix[2])
+			return BadAlloc;
+	}
+
+	top = (y1 >> 16) & ~1;
+	nlines = ((y2 + 0xffff) >> 16) - top;
+
+	switch (id) {
+	case FOURCC_YV12:
+	case FOURCC_I420:
+		s2offset = srcPitch * height;
+		s3offset = s2offset + (srcPitch2 * ((height + 1) >> 1));
+		s2offset += ((top >> 1) * srcPitch2);
+		s3offset += ((top >> 1) * srcPitch2);
+		if (id == FOURCC_YV12) {
+			tmp = s2offset;
+			s2offset = s3offset;
+			s3offset = tmp;
+		}
+		glamor_upload_sub_pixmap_to_texture(port_priv->src_pix[0],
+						    0, 0, srcPitch, nlines,
+						    port_priv->src_pix[0]->devKind,
+						    buf + (top * srcPitch), 0);
+
+		glamor_upload_sub_pixmap_to_texture(port_priv->src_pix[1],
+						    0, 0, srcPitch2, (nlines + 1) >> 1,
+						    port_priv->src_pix[1]->devKind,
+						    buf + s2offset, 0);
+
+		glamor_upload_sub_pixmap_to_texture(port_priv->src_pix[2],
+						    0, 0, srcPitch2, (nlines + 1) >> 1,
+						    port_priv->src_pix[2]->devKind,
+						    buf + s3offset, 0);
+		break;
+	default:
+		return BadMatch;
+	}
+
+	if (pDrawable->type == DRAWABLE_WINDOW)
+		port_priv->pPixmap = (*screen->GetWindowPixmap)((WindowPtr)pDrawable);
+	else
+		port_priv->pPixmap = (PixmapPtr)pDrawable;
+
+	if (!RegionEqual(&port_priv->clip, clipBoxes)) {
+		RegionCopy(&port_priv->clip, clipBoxes);
+	}
+
+	port_priv->src_x = src_x;
+	port_priv->src_y = src_y;
+	port_priv->src_w = src_w;
+	port_priv->src_h = src_h;
+	port_priv->dst_w = drw_w;
+	port_priv->dst_h = drw_h;
+	port_priv->drw_x = drw_x;
+	port_priv->drw_y = drw_y;
+	port_priv->w = width;
+	port_priv->h = height;
+	port_priv->pDraw = pDrawable;
+	glamor_display_textured_video(port_priv);
+	return Success;
+}
+
+static XF86VideoEncodingRec DummyEncodingGLAMOR[1] =
+{
+	{
+		0,
+		"XV_IMAGE",
+		8192, 8192,
+		{1, 1}
+	}
+};
+
+XF86VideoAdaptorPtr
+glamor_xv_init(ScreenPtr screen, int num_texture_ports)
+{
+	glamor_port_private *port_priv;
+	XF86VideoAdaptorPtr adapt;
+	int i;
+
+	adapt = calloc(1, sizeof(XF86VideoAdaptorRec) + num_texture_ports *
+		       (sizeof(glamor_port_private) + sizeof(DevUnion)));
+	if (adapt == NULL)
+		return NULL;
+
+	xvBrightness      = MAKE_ATOM("XV_BRIGHTNESS");
+	xvContrast        = MAKE_ATOM("XV_CONTRAST");
+	xvSaturation      = MAKE_ATOM("XV_SATURATION");
+	xvHue             = MAKE_ATOM("XV_HUE");
+	xvGamma           = MAKE_ATOM("XV_GAMMA");
+	xvColorspace      = MAKE_ATOM("XV_COLORSPACE");
+
+	adapt->type = XvWindowMask | XvInputMask | XvImageMask;
+	adapt->flags = 0;
+	adapt->name = "GLAMOR Textured Video";
+	adapt->nEncodings = 1;
+	adapt->pEncodings = DummyEncodingGLAMOR;
+
+	adapt->nFormats = NUM_FORMATS;
+	adapt->pFormats = Formats;
+	adapt->nPorts = num_texture_ports;
+	adapt->pPortPrivates = (DevUnion*)(&adapt[1]);
+
+	adapt->pAttributes = Attributes_glamor;
+	adapt->nAttributes = NUM_ATTRIBUTES;
+
+	port_priv = (glamor_port_private *)(&adapt->pPortPrivates[num_texture_ports]);
+	adapt->pImages = Images;
+	adapt->nImages = NUM_IMAGES;
+	adapt->PutVideo = NULL;
+	adapt->PutStill = NULL;
+	adapt->GetVideo = NULL;
+	adapt->GetStill = NULL;
+	adapt->StopVideo = glamor_xv_stop_video;
+	adapt->SetPortAttribute = glamor_xv_set_port_attribute;
+	adapt->GetPortAttribute = glamor_xv_get_port_attribute;
+	adapt->QueryBestSize = glamor_xv_query_best_size;
+	adapt->PutImage = glamor_xv_put_image;
+	adapt->ReputImage = NULL;
+	adapt->QueryImageAttributes = glamor_xv_query_image_attributes;
+
+	for (i = 0; i < num_texture_ports; i++) {
+		glamor_port_private *pPriv = &port_priv[i];
+
+		pPriv->brightness = 0;
+		pPriv->contrast = 0;
+		pPriv->saturation = 0;
+		pPriv->hue = 0;
+		pPriv->gamma = 1000;
+		pPriv->transform_index = 0;
+
+		REGION_NULL(pScreen, &pPriv->clip);
+
+		adapt->pPortPrivates[i].ptr = (pointer)(pPriv);
+	}
+	return adapt;
+}
+#else
+XF86VideoAdaptorPtr
+glamor_xv_init(ScreenPtr screen, int num_texture_ports)
+{
+	return NULL;
+}
+#endif
diff --git a/glamor/glapi.h b/glamor/glapi.h
new file mode 100644
index 000000000..d510dac1d
--- /dev/null
+++ b/glamor/glapi.h
@@ -0,0 +1,121 @@
+/*
+ * Mesa 3-D graphics library
+ * Version:  7.1
+ *
+ * Copyright (C) 1999-2008  Brian Paul   All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+
+/**
+ * \mainpage Mesa GL API Module
+ *
+ * \section GLAPIIntroduction Introduction
+ *
+ * The Mesa GL API module is responsible for dispatching all the
+ * gl*() functions.  All GL functions are dispatched by jumping through
+ * the current dispatch table (basically a struct full of function
+ * pointers.)
+ *
+ * A per-thread current dispatch table and per-thread current context
+ * pointer are managed by this module too.
+ *
+ * This module is intended to be non-Mesa-specific so it can be used
+ * with the X/DRI libGL also.
+ */
+
+#ifndef _GLAPI_H
+#define _GLAPI_H
+
+#define GL_GLEXT_PROTOTYPES
+
+#if GLAMOR_GLES2
+#include <GLES2/gl2.h>
+#include <GLES2/gl2ext.h>
+#else
+#include <GL/gl.h>
+#include "GL/glext.h"
+#endif
+
+/* Is this needed?  It is incomplete anyway. */
+#ifdef USE_MGL_NAMESPACE
+#define _glapi_set_dispatch _mglapi_set_dispatch
+#define _glapi_get_dispatch _mglapi_get_dispatch
+#define _glapi_set_context _mglapi_set_context
+#define _glapi_get_context _mglapi_get_context
+#define _glapi_Dispatch _mglapi_Dispatch
+#define _glapi_Context _mglapi_Context
+#endif
+
+typedef void (*_glapi_proc)(void);
+struct _glapi_table;
+
+
+#if defined (GLX_USE_TLS)
+
+extern __thread struct _glapi_table * _glapi_tls_Dispatch
+    __attribute__((tls_model("initial-exec")));
+
+extern __thread void * _glapi_tls_Context
+    __attribute__((tls_model("initial-exec")));
+
+extern const struct _glapi_table *_glapi_Dispatch;
+extern const void *_glapi_Context;
+
+# define GET_DISPATCH() _glapi_tls_Dispatch
+# define GET_CURRENT_CONTEXT(C)  C = (typeof(C)) _glapi_tls_Context
+# define SET_CURRENT_CONTEXT(C)  _glapi_tls_Context = (void*)C
+
+#else
+
+extern struct _glapi_table *_glapi_Dispatch;
+extern void *_glapi_Context;
+
+# ifdef THREADS
+
+#  define GET_DISPATCH() \
+     (likely(_glapi_Dispatch) ? _glapi_Dispatch : _glapi_get_dispatch())
+
+#  define GET_CURRENT_CONTEXT(C)  C = (typeof(C)) \
+     (likely(_glapi_Context) ? _glapi_Context : _glapi_get_context())
+
+
+# define SET_CURRENT_CONTEXT(C) do { if (likely(_glapi_Context))   \
+					_glapi_Context = (void*)C; \
+				     else \
+					_glapi_set_context(C); } while(0)
+
+# else
+
+#  define GET_DISPATCH() _glapi_Dispatch
+#  define GET_CURRENT_CONTEXT(C)  C = (typeof(C)) _glapi_Context
+# define SET_CURRENT_CONTEXT(C)  _glapi_Context = (void*)C
+
+# endif
+
+#endif /* defined (GLX_USE_TLS) */
+
+
+extern void
+_glapi_set_context(void *context);
+
+extern void *
+_glapi_get_context(void);
+
+#endif