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

1 files changed, 364 insertions, 0 deletions

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;
+}
+