Add loader for the swrast dri driver.

(cherry picked from commit 6ff6465931c397f72db27a4fd0ca0dcac0609537)

8 files changed, 806 insertions, 207 deletions

diff --git a/GL/glx/Makefile.am b/GL/glx/Makefile.am
index 1d4719c88..48613e6b6 100644
--- a/GL/glx/Makefile.am
+++ b/GL/glx/Makefile.am
@@ -57,6 +57,8 @@ libglx_la_SOURCES = \
         glxext.c \
         glxext.h \
         glxglcore.c \
+	glxdriswrast.c \
+	glxdricommon.c \
         glxscreens.c \
         glxscreens.h \
         glxserver.h \
diff --git a/GL/glx/glxdri.c b/GL/glx/glxdri.c
index cfa338ac8..a87ff13ce 100644
--- a/GL/glx/glxdri.c
+++ b/GL/glx/glxdri.c
@@ -52,6 +52,7 @@
 #define DRI_NEW_INTERFACE_ONLY
 #include "glxserver.h"
 #include "glxutil.h"
+#include "glxdricommon.h"
 
 #include "g_disptab.h"
 #include "glapitable.h"
@@ -63,7 +64,6 @@
 typedef struct __GLXDRIscreen   __GLXDRIscreen;
 typedef struct __GLXDRIcontext  __GLXDRIcontext;
 typedef struct __GLXDRIdrawable __GLXDRIdrawable;
-typedef struct __GLXDRIconfig	__GLXDRIconfig;
 
 struct __GLXDRIscreen {
     __GLXscreen		 base;
@@ -108,11 +108,6 @@ struct __GLXDRIdrawable {
 #endif
 };
 
-struct __GLXDRIconfig {
-    __GLXconfig config;
-    __DRIconfig *driConfig;
-};
-
 static void
 __glXDRIleaveServer(GLboolean rendering)
 {
@@ -801,22 +796,6 @@ getDrawableInfo(__DRIdrawable *driDrawable,
     return retval;
 }
 
-static int
-getUST(int64_t *ust)
-{
-    struct timeval  tv;
-    
-    if (ust == NULL)
-	return -EFAULT;
-
-    if (gettimeofday(&tv, NULL) == 0) {
-	ust[0] = (tv.tv_sec * 1000000) + tv.tv_usec;
-	return 0;
-    } else {
-	return -errno;
-    }
-}
-
 static void __glXReportDamage(__DRIdrawable *driDraw,
 			      int x, int y,
 			      drm_clip_rect_t *rects, int num_rects,
@@ -837,12 +816,6 @@ static void __glXReportDamage(__DRIdrawable *driDraw,
     __glXleaveServer(GL_FALSE);
 }
 
-static const __DRIsystemTimeExtension systemTimeExtension = {
-    { __DRI_SYSTEM_TIME, __DRI_SYSTEM_TIME_VERSION },
-    getUST,
-    NULL,
-};
-
 static const __DRIgetDrawableInfoExtension getDrawableInfoExtension = {
     { __DRI_GET_DRAWABLE_INFO, __DRI_GET_DRAWABLE_INFO_VERSION },
     getDrawableInfo
diff --git a/GL/glx/glxdri2.c b/GL/glx/glxdri2.c
index 40590c167..9a3bc1fdb 100644
--- a/GL/glx/glxdri2.c
+++ b/GL/glx/glxdri2.c
@@ -29,7 +29,6 @@
 #include <stdio.h>
 #include <string.h>
 #include <errno.h>
-#include <sys/time.h>
 #include <dlfcn.h>
 
 #include <drm.h>
@@ -47,6 +46,7 @@
 
 #include "glxserver.h"
 #include "glxutil.h"
+#include "glxdricommon.h"
 
 #include "g_disptab.h"
 #include "glapitable.h"
@@ -58,7 +58,6 @@
 typedef struct __GLXDRIscreen   __GLXDRIscreen;
 typedef struct __GLXDRIcontext  __GLXDRIcontext;
 typedef struct __GLXDRIdrawable __GLXDRIdrawable;
-typedef struct __GLXDRIconfig	__GLXDRIconfig;
 
 struct __GLXDRIscreen {
     __GLXscreen		 base;
@@ -88,11 +87,6 @@ struct __GLXDRIdrawable {
     __GLXDRIscreen	*screen;
 };
 
-struct __GLXDRIconfig {
-    __GLXconfig config;
-    const __DRIconfig *driConfig;
-};
-
 static void
 __glXDRIdrawableDestroy(__GLXdrawable *drawable)
 {
@@ -359,28 +353,6 @@ __glXDRIscreenCreateDrawable(__GLXscreen *screen,
     return &private->base;
 }
 
-static int
-getUST(int64_t *ust)
-{
-    struct timeval  tv;
-    
-    if (ust == NULL)
-	return -EFAULT;
-
-    if (gettimeofday(&tv, NULL) == 0) {
-	ust[0] = (tv.tv_sec * 1000000) + tv.tv_usec;
-	return 0;
-    } else {
-	return -errno;
-    }
-}
-
-static const __DRIsystemTimeExtension systemTimeExtension = {
-    { __DRI_SYSTEM_TIME, __DRI_SYSTEM_TIME_VERSION },
-    getUST,
-    NULL,
-};
-
 static void dri2ReemitDrawableInfo(__DRIdrawable *draw, unsigned int *tail,
 				   void *loaderPrivate)
 {
@@ -490,156 +462,6 @@ initializeExtensions(__GLXDRIscreen *screen)
 	/* Ignore unknown extensions */
     }
 }
-    
-#define __ATTRIB(attrib, field) \
-    { attrib, offsetof(__GLXconfig, field) }
-
-static const struct { unsigned int attrib, offset; } attribMap[] = {
-    __ATTRIB(__DRI_ATTRIB_BUFFER_SIZE,			rgbBits),
-    __ATTRIB(__DRI_ATTRIB_LEVEL,			level),
-    __ATTRIB(__DRI_ATTRIB_RED_SIZE,			redBits),
-    __ATTRIB(__DRI_ATTRIB_GREEN_SIZE,			greenBits),
-    __ATTRIB(__DRI_ATTRIB_BLUE_SIZE,			blueBits),
-    __ATTRIB(__DRI_ATTRIB_ALPHA_SIZE,			alphaBits),
-    __ATTRIB(__DRI_ATTRIB_DEPTH_SIZE,			depthBits),
-    __ATTRIB(__DRI_ATTRIB_STENCIL_SIZE,			stencilBits),
-    __ATTRIB(__DRI_ATTRIB_ACCUM_RED_SIZE,		accumRedBits),
-    __ATTRIB(__DRI_ATTRIB_ACCUM_GREEN_SIZE,		accumGreenBits),
-    __ATTRIB(__DRI_ATTRIB_ACCUM_BLUE_SIZE,		accumBlueBits),
-    __ATTRIB(__DRI_ATTRIB_ACCUM_ALPHA_SIZE,		accumAlphaBits),
-    __ATTRIB(__DRI_ATTRIB_SAMPLE_BUFFERS,		sampleBuffers),
-    __ATTRIB(__DRI_ATTRIB_SAMPLES,			samples),
-    __ATTRIB(__DRI_ATTRIB_DOUBLE_BUFFER,		doubleBufferMode),
-    __ATTRIB(__DRI_ATTRIB_STEREO,			stereoMode),
-    __ATTRIB(__DRI_ATTRIB_AUX_BUFFERS,			numAuxBuffers),
-    __ATTRIB(__DRI_ATTRIB_TRANSPARENT_TYPE,		transparentPixel),
-    __ATTRIB(__DRI_ATTRIB_TRANSPARENT_INDEX_VALUE,	transparentPixel),
-    __ATTRIB(__DRI_ATTRIB_TRANSPARENT_RED_VALUE,	transparentRed),
-    __ATTRIB(__DRI_ATTRIB_TRANSPARENT_GREEN_VALUE,	transparentGreen),
-    __ATTRIB(__DRI_ATTRIB_TRANSPARENT_BLUE_VALUE,	transparentBlue),
-    __ATTRIB(__DRI_ATTRIB_TRANSPARENT_ALPHA_VALUE,	transparentAlpha),
-    __ATTRIB(__DRI_ATTRIB_FLOAT_MODE,			floatMode),
-    __ATTRIB(__DRI_ATTRIB_RED_MASK,			redMask),
-    __ATTRIB(__DRI_ATTRIB_GREEN_MASK,			greenMask),
-    __ATTRIB(__DRI_ATTRIB_BLUE_MASK,			blueMask),
-    __ATTRIB(__DRI_ATTRIB_ALPHA_MASK,			alphaMask),
-    __ATTRIB(__DRI_ATTRIB_MAX_PBUFFER_WIDTH,		maxPbufferWidth),
-    __ATTRIB(__DRI_ATTRIB_MAX_PBUFFER_HEIGHT,		maxPbufferHeight),
-    __ATTRIB(__DRI_ATTRIB_MAX_PBUFFER_PIXELS,		maxPbufferPixels),
-    __ATTRIB(__DRI_ATTRIB_OPTIMAL_PBUFFER_WIDTH,	optimalPbufferWidth),
-    __ATTRIB(__DRI_ATTRIB_OPTIMAL_PBUFFER_HEIGHT,	optimalPbufferHeight),
-    __ATTRIB(__DRI_ATTRIB_SWAP_METHOD,			swapMethod),
-    __ATTRIB(__DRI_ATTRIB_BIND_TO_TEXTURE_RGB,		bindToTextureRgb),
-    __ATTRIB(__DRI_ATTRIB_BIND_TO_TEXTURE_RGBA,		bindToTextureRgba),
-    __ATTRIB(__DRI_ATTRIB_BIND_TO_MIPMAP_TEXTURE,	bindToMipmapTexture),
-    __ATTRIB(__DRI_ATTRIB_YINVERTED,			yInverted),
-};
-
-#define ARRAY_SIZE(a) (sizeof (a) / sizeof ((a)[0]))
-
-static void
-setScalar(__GLXconfig *config, unsigned int attrib, unsigned int value)
-{
-    int i;
-
-    for (i = 0; i < ARRAY_SIZE(attribMap); i++)
-	if (attribMap[i].attrib == attrib) {
-	    *(unsigned int *) ((char *) config + attribMap[i].offset) = value;
-	    return;
-	}
-}
-
-static __GLXconfig *
-createModeFromConfig(const __DRIcoreExtension *core,
-		     const __DRIconfig *driConfig,
-		     unsigned int visualType)
-{
-    __GLXDRIconfig *config;
-    unsigned int attrib, value;
-    int i;
-
-    config = xalloc(sizeof *config);
-
-    config->driConfig = driConfig;
-
-    i = 0;
-    while (core->indexConfigAttrib(driConfig, i++, &attrib, &value)) {
-	switch (attrib) {
-	case __DRI_ATTRIB_RENDER_TYPE:
-	    if (value & __DRI_ATTRIB_RGBA_BIT) {
-		config->config.renderType |= GLX_RGBA_BIT;
-		config->config.rgbMode = GL_TRUE;
-	    } else if (value & __DRI_ATTRIB_COLOR_INDEX_BIT) {
-		config->config.renderType |= GLX_COLOR_INDEX_BIT;
-		config->config.rgbMode = GL_FALSE;
-	    } else {
-		config->config.renderType = 0;
-		config->config.rgbMode = GL_FALSE;
-	    }
-	    break;
-	case __DRI_ATTRIB_CONFIG_CAVEAT:
-	    if (value & __DRI_ATTRIB_NON_CONFORMANT_CONFIG)
-		config->config.visualRating = GLX_NON_CONFORMANT_CONFIG;
-	    else if (value & __DRI_ATTRIB_SLOW_BIT)
-		config->config.visualRating = GLX_SLOW_CONFIG;
-	    else
-		config->config.visualRating = GLX_NONE;
-	    break;
-	case __DRI_ATTRIB_BIND_TO_TEXTURE_TARGETS:
-	    config->config.bindToTextureTargets = 0;
-	    if (value & __DRI_ATTRIB_TEXTURE_1D_BIT)
-		config->config.bindToTextureTargets |= GLX_TEXTURE_1D_BIT_EXT;
-	    if (value & __DRI_ATTRIB_TEXTURE_2D_BIT)
-		config->config.bindToTextureTargets |= GLX_TEXTURE_2D_BIT_EXT;
-	    if (value & __DRI_ATTRIB_TEXTURE_RECTANGLE_BIT)
-		config->config.bindToTextureTargets |= GLX_TEXTURE_RECTANGLE_BIT_EXT;
-	    break;	
-	default:
-	    setScalar(&config->config, attrib, value);
-	    break;
-	}
-    }
-
-    config->config.next = NULL;
-    config->config.xRenderable = GL_TRUE;
-    config->config.visualType = visualType;
-    config->config.drawableType = GLX_WINDOW_BIT | GLX_PIXMAP_BIT;
-
-    return &config->config;
-}
-
-__GLXconfig *
-glxConvertConfigs(const __DRIcoreExtension *core, const __DRIconfig **configs);
-
-__GLXconfig *
-glxConvertConfigs(const __DRIcoreExtension *core, const __DRIconfig **configs)
-{
-    __GLXconfig head, *tail;
-    int i;
-
-    tail = &head;
-    head.next = NULL;
-
-    for (i = 0; configs[i]; i++) {
-	tail->next = createModeFromConfig(core,
-					  configs[i], GLX_TRUE_COLOR);
-	if (tail->next == NULL)
-	    break;
-
-	tail = tail->next;
-    }
-
-    for (i = 0; configs[i]; i++) {
-	tail->next = createModeFromConfig(core,
-					  configs[i], GLX_DIRECT_COLOR);
-	if (tail->next == NULL)
-	    break;
-
-	tail = tail->next;
-    }
-
-    return head.next;
-}
 
 static __GLXscreen *
 __glXDRIscreenProbe(ScreenPtr pScreen)
diff --git a/GL/glx/glxdricommon.c b/GL/glx/glxdricommon.c
new file mode 100644
index 000000000..13725ae73
--- /dev/null
+++ b/GL/glx/glxdricommon.c
@@ -0,0 +1,209 @@
+/*
+ * Copyright © 2008 Red Hat, 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 the
+ * copyright holders not be used in advertising or publicity
+ * pertaining to distribution of the software without specific,
+ * written prior permission.  The copyright holders make no
+ * representations about the suitability of this software for any
+ * purpose.  It is provided "as is" without express or implied
+ * warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
+ * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS 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.
+ */
+
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+#include <stdint.h>
+#include <errno.h>
+#include <sys/time.h>
+#include <GL/gl.h>
+#include <GL/glxtokens.h>
+#include <GL/internal/dri_interface.h>
+#include <os.h>
+#include "glxserver.h"
+#include "glxcontext.h"
+#include "glxscreens.h"
+#include "glxdricommon.h"
+
+static int
+getUST(int64_t *ust)
+{
+    struct timeval  tv;
+    
+    if (ust == NULL)
+	return -EFAULT;
+
+    if (gettimeofday(&tv, NULL) == 0) {
+	ust[0] = (tv.tv_sec * 1000000) + tv.tv_usec;
+	return 0;
+    } else {
+	return -errno;
+    }
+}
+
+const __DRIsystemTimeExtension systemTimeExtension = {
+    { __DRI_SYSTEM_TIME, __DRI_SYSTEM_TIME_VERSION },
+    getUST,
+    NULL,
+};
+    
+#define __ATTRIB(attrib, field) \
+    { attrib, offsetof(__GLXconfig, field) }
+
+static const struct { unsigned int attrib, offset; } attribMap[] = {
+    __ATTRIB(__DRI_ATTRIB_BUFFER_SIZE,			rgbBits),
+    __ATTRIB(__DRI_ATTRIB_LEVEL,			level),
+    __ATTRIB(__DRI_ATTRIB_RED_SIZE,			redBits),
+    __ATTRIB(__DRI_ATTRIB_GREEN_SIZE,			greenBits),
+    __ATTRIB(__DRI_ATTRIB_BLUE_SIZE,			blueBits),
+    __ATTRIB(__DRI_ATTRIB_ALPHA_SIZE,			alphaBits),
+    __ATTRIB(__DRI_ATTRIB_DEPTH_SIZE,			depthBits),
+    __ATTRIB(__DRI_ATTRIB_STENCIL_SIZE,			stencilBits),
+    __ATTRIB(__DRI_ATTRIB_ACCUM_RED_SIZE,		accumRedBits),
+    __ATTRIB(__DRI_ATTRIB_ACCUM_GREEN_SIZE,		accumGreenBits),
+    __ATTRIB(__DRI_ATTRIB_ACCUM_BLUE_SIZE,		accumBlueBits),
+    __ATTRIB(__DRI_ATTRIB_ACCUM_ALPHA_SIZE,		accumAlphaBits),
+    __ATTRIB(__DRI_ATTRIB_SAMPLE_BUFFERS,		sampleBuffers),
+    __ATTRIB(__DRI_ATTRIB_SAMPLES,			samples),
+    __ATTRIB(__DRI_ATTRIB_DOUBLE_BUFFER,		doubleBufferMode),
+    __ATTRIB(__DRI_ATTRIB_STEREO,			stereoMode),
+    __ATTRIB(__DRI_ATTRIB_AUX_BUFFERS,			numAuxBuffers),
+    __ATTRIB(__DRI_ATTRIB_TRANSPARENT_TYPE,		transparentPixel),
+    __ATTRIB(__DRI_ATTRIB_TRANSPARENT_INDEX_VALUE,	transparentPixel),
+    __ATTRIB(__DRI_ATTRIB_TRANSPARENT_RED_VALUE,	transparentRed),
+    __ATTRIB(__DRI_ATTRIB_TRANSPARENT_GREEN_VALUE,	transparentGreen),
+    __ATTRIB(__DRI_ATTRIB_TRANSPARENT_BLUE_VALUE,	transparentBlue),
+    __ATTRIB(__DRI_ATTRIB_TRANSPARENT_ALPHA_VALUE,	transparentAlpha),
+    __ATTRIB(__DRI_ATTRIB_FLOAT_MODE,			floatMode),
+    __ATTRIB(__DRI_ATTRIB_RED_MASK,			redMask),
+    __ATTRIB(__DRI_ATTRIB_GREEN_MASK,			greenMask),
+    __ATTRIB(__DRI_ATTRIB_BLUE_MASK,			blueMask),
+    __ATTRIB(__DRI_ATTRIB_ALPHA_MASK,			alphaMask),
+    __ATTRIB(__DRI_ATTRIB_MAX_PBUFFER_WIDTH,		maxPbufferWidth),
+    __ATTRIB(__DRI_ATTRIB_MAX_PBUFFER_HEIGHT,		maxPbufferHeight),
+    __ATTRIB(__DRI_ATTRIB_MAX_PBUFFER_PIXELS,		maxPbufferPixels),
+    __ATTRIB(__DRI_ATTRIB_OPTIMAL_PBUFFER_WIDTH,	optimalPbufferWidth),
+    __ATTRIB(__DRI_ATTRIB_OPTIMAL_PBUFFER_HEIGHT,	optimalPbufferHeight),
+    __ATTRIB(__DRI_ATTRIB_SWAP_METHOD,			swapMethod),
+    __ATTRIB(__DRI_ATTRIB_BIND_TO_TEXTURE_RGB,		bindToTextureRgb),
+    __ATTRIB(__DRI_ATTRIB_BIND_TO_TEXTURE_RGBA,		bindToTextureRgba),
+    __ATTRIB(__DRI_ATTRIB_BIND_TO_MIPMAP_TEXTURE,	bindToMipmapTexture),
+    __ATTRIB(__DRI_ATTRIB_YINVERTED,			yInverted),
+};
+
+#define ARRAY_SIZE(a) (sizeof (a) / sizeof ((a)[0]))
+
+static void
+setScalar(__GLXconfig *config, unsigned int attrib, unsigned int value)
+{
+    int i;
+
+    for (i = 0; i < ARRAY_SIZE(attribMap); i++)
+	if (attribMap[i].attrib == attrib) {
+	    *(unsigned int *) ((char *) config + attribMap[i].offset) = value;
+	    return;
+	}
+}
+
+static __GLXconfig *
+createModeFromConfig(const __DRIcoreExtension *core,
+		     const __DRIconfig *driConfig,
+		     unsigned int visualType)
+{
+    __GLXDRIconfig *config;
+    unsigned int attrib, value;
+    int i;
+
+    config = xalloc(sizeof *config);
+
+    config->driConfig = driConfig;
+
+    i = 0;
+    while (core->indexConfigAttrib(driConfig, i++, &attrib, &value)) {
+	switch (attrib) {
+	case __DRI_ATTRIB_RENDER_TYPE:
+	    if (value & __DRI_ATTRIB_RGBA_BIT) {
+		config->config.renderType |= GLX_RGBA_BIT;
+		config->config.rgbMode = GL_TRUE;
+	    } else if (value & __DRI_ATTRIB_COLOR_INDEX_BIT) {
+		config->config.renderType |= GLX_COLOR_INDEX_BIT;
+		config->config.rgbMode = GL_FALSE;
+	    } else {
+		config->config.renderType = 0;
+		config->config.rgbMode = GL_FALSE;
+	    }
+	    break;
+	case __DRI_ATTRIB_CONFIG_CAVEAT:
+	    if (value & __DRI_ATTRIB_NON_CONFORMANT_CONFIG)
+		config->config.visualRating = GLX_NON_CONFORMANT_CONFIG;
+	    else if (value & __DRI_ATTRIB_SLOW_BIT)
+		config->config.visualRating = GLX_SLOW_CONFIG;
+	    else
+		config->config.visualRating = GLX_NONE;
+	    break;
+	case __DRI_ATTRIB_BIND_TO_TEXTURE_TARGETS:
+	    config->config.bindToTextureTargets = 0;
+	    if (value & __DRI_ATTRIB_TEXTURE_1D_BIT)
+		config->config.bindToTextureTargets |= GLX_TEXTURE_1D_BIT_EXT;
+	    if (value & __DRI_ATTRIB_TEXTURE_2D_BIT)
+		config->config.bindToTextureTargets |= GLX_TEXTURE_2D_BIT_EXT;
+	    if (value & __DRI_ATTRIB_TEXTURE_RECTANGLE_BIT)
+		config->config.bindToTextureTargets |= GLX_TEXTURE_RECTANGLE_BIT_EXT;
+	    break;	
+	default:
+	    setScalar(&config->config, attrib, value);
+	    break;
+	}
+    }
+
+    config->config.next = NULL;
+    config->config.xRenderable = GL_TRUE;
+    config->config.visualType = visualType;
+    config->config.drawableType = GLX_WINDOW_BIT | GLX_PIXMAP_BIT;
+
+    return &config->config;
+}
+
+__GLXconfig *
+glxConvertConfigs(const __DRIcoreExtension *core, const __DRIconfig **configs)
+{
+    __GLXconfig head, *tail;
+    int i;
+
+    tail = &head;
+    head.next = NULL;
+
+    for (i = 0; configs[i]; i++) {
+	tail->next = createModeFromConfig(core,
+					  configs[i], GLX_TRUE_COLOR);
+	if (tail->next == NULL)
+	    break;
+
+	tail = tail->next;
+    }
+
+    for (i = 0; configs[i]; i++) {
+	tail->next = createModeFromConfig(core,
+					  configs[i], GLX_DIRECT_COLOR);
+	if (tail->next == NULL)
+	    break;
+
+	tail = tail->next;
+    }
+
+    return head.next;
+}
diff --git a/GL/glx/glxdricommon.h b/GL/glx/glxdricommon.h
new file mode 100644
index 000000000..f88964b36
--- /dev/null
+++ b/GL/glx/glxdricommon.h
@@ -0,0 +1,40 @@
+/*
+ * Copyright © 2008 Red Hat, 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 the
+ * copyright holders not be used in advertising or publicity
+ * pertaining to distribution of the software without specific,
+ * written prior permission.  The copyright holders make no
+ * representations about the suitability of this software for any
+ * purpose.  It is provided "as is" without express or implied
+ * warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
+ * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS 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.
+ */
+
+#ifndef _GLX_dri_common_h
+#define _GLX_dri_common_h
+
+typedef struct __GLXDRIconfig	__GLXDRIconfig;
+struct __GLXDRIconfig {
+    __GLXconfig config;
+    const __DRIconfig *driConfig;
+};
+
+__GLXconfig *
+glxConvertConfigs(const __DRIcoreExtension *core, const __DRIconfig **configs);
+
+extern const __DRIsystemTimeExtension systemTimeExtension;
+
+#endif
diff --git a/GL/glx/glxdriswrast.c b/GL/glx/glxdriswrast.c
new file mode 100644
index 000000000..5e98da49b
--- /dev/null
+++ b/GL/glx/glxdriswrast.c
@@ -0,0 +1,547 @@
+/*
+ * Copyright © 2008 George Sapountzis <gsap7@yahoo.gr>
+ * Copyright © 2008 Red Hat, 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 the
+ * copyright holders not be used in advertising or publicity
+ * pertaining to distribution of the software without specific,
+ * written prior permission.  The copyright holders make no
+ * representations about the suitability of this software for any
+ * purpose.  It is provided "as is" without express or implied
+ * warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
+ * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS 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.
+ */
+
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+#include <stdint.h>
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+#include <sys/time.h>
+#include <dlfcn.h>
+
+#include <drm.h>
+#include <GL/gl.h>
+#include <GL/internal/dri_interface.h>
+#include <GL/glxtokens.h>
+
+#include "scrnintstr.h"
+#include "pixmapstr.h"
+#include "gcstruct.h"
+#include "os.h"
+
+#include "glxserver.h"
+#include "glxutil.h"
+#include "glxdricommon.h"
+
+#include "g_disptab.h"
+#include "glapitable.h"
+#include "glapi.h"
+#include "glthread.h"
+#include "dispatch.h"
+#include "extension_string.h"
+
+typedef struct __GLXDRIscreen   __GLXDRIscreen;
+typedef struct __GLXDRIcontext  __GLXDRIcontext;
+typedef struct __GLXDRIdrawable __GLXDRIdrawable;
+
+struct __GLXDRIscreen {
+    __GLXscreen		 base;
+    __DRIscreen		*driScreen;
+    void		*driver;
+
+    const __DRIcoreExtension *core;
+    const __DRIswrastExtension *swrast;
+    const __DRIcopySubBufferExtension *copySubBuffer;
+    const __DRItexBufferExtension *texBuffer;
+};
+
+struct __GLXDRIcontext {
+    __GLXcontext	 base;
+    __DRIcontext	*driContext;
+};
+
+struct __GLXDRIdrawable {
+    __GLXdrawable	 base;
+    __DRIdrawable	*driDrawable;
+    __GLXDRIscreen	*screen;
+
+    GCPtr gc;		/* scratch GC for span drawing */
+    GCPtr cleargc;	/* GC for clearing the color buffer */
+    GCPtr swapgc;	/* GC for swapping the color buffers */
+};
+
+static void
+__glXDRIdrawableDestroy(__GLXdrawable *drawable)
+{
+    __GLXDRIdrawable *private = (__GLXDRIdrawable *) drawable;
+    const __DRIcoreExtension *core = private->screen->core;
+
+    (*core->destroyDrawable)(private->driDrawable);
+
+    FreeScratchGC(private->gc);
+    FreeScratchGC(private->cleargc);
+    FreeScratchGC(private->swapgc);
+
+    xfree(private);
+}
+
+static GLboolean
+__glXDRIdrawableResize(__GLXdrawable *glxPriv)
+{
+    /* Nothing to do here, the DRI driver asks the server for drawable
+     * geometry when it sess the SAREA timestamps change.*/
+
+    return GL_TRUE;
+}
+
+static GLboolean
+__glXDRIdrawableSwapBuffers(__GLXdrawable *drawable)
+{
+    __GLXDRIdrawable *private = (__GLXDRIdrawable *) drawable;
+    const __DRIcoreExtension *core = private->screen->core;
+
+    (*core->swapBuffers)(private->driDrawable);
+
+    return TRUE;
+}
+
+static void
+__glXDRIdrawableCopySubBuffer(__GLXdrawable *basePrivate,
+			       int x, int y, int w, int h)
+{
+    __GLXDRIdrawable *private = (__GLXDRIdrawable *) basePrivate;
+    const __DRIcopySubBufferExtension *copySubBuffer =
+	    private->screen->copySubBuffer;
+
+    if (copySubBuffer)
+	(*copySubBuffer->copySubBuffer)(private->driDrawable, x, y, w, h);
+}
+
+static void
+__glXDRIcontextDestroy(__GLXcontext *baseContext)
+{
+    __GLXDRIcontext *context = (__GLXDRIcontext *) baseContext;
+    __GLXDRIscreen *screen = (__GLXDRIscreen *) context->base.pGlxScreen;
+
+    (*screen->core->destroyContext)(context->driContext);
+    __glXContextDestroy(&context->base);
+    xfree(context);
+}
+
+static int
+__glXDRIcontextMakeCurrent(__GLXcontext *baseContext)
+{
+    __GLXDRIcontext *context = (__GLXDRIcontext *) baseContext;
+    __GLXDRIdrawable *draw = (__GLXDRIdrawable *) baseContext->drawPriv;
+    __GLXDRIdrawable *read = (__GLXDRIdrawable *) baseContext->readPriv;
+    __GLXDRIscreen *screen = (__GLXDRIscreen *) context->base.pGlxScreen;
+
+    return (*screen->core->bindContext)(context->driContext,
+					draw->driDrawable,
+					read->driDrawable);
+}
+
+static int
+__glXDRIcontextLoseCurrent(__GLXcontext *baseContext)
+{
+    __GLXDRIcontext *context = (__GLXDRIcontext *) baseContext;
+    __GLXDRIscreen *screen = (__GLXDRIscreen *) context->base.pGlxScreen;
+
+    return (*screen->core->unbindContext)(context->driContext);
+}
+
+static int
+__glXDRIcontextCopy(__GLXcontext *baseDst, __GLXcontext *baseSrc,
+		    unsigned long mask)
+{
+    __GLXDRIcontext *dst = (__GLXDRIcontext *) baseDst;
+    __GLXDRIcontext *src = (__GLXDRIcontext *) baseSrc;
+    __GLXDRIscreen *screen = (__GLXDRIscreen *) dst->base.pGlxScreen;
+
+    return (*screen->core->copyContext)(dst->driContext,
+					src->driContext, mask);
+}
+
+static int
+__glXDRIcontextForceCurrent(__GLXcontext *baseContext)
+{
+    __GLXDRIcontext *context = (__GLXDRIcontext *) baseContext;
+    __GLXDRIdrawable *draw = (__GLXDRIdrawable *) baseContext->drawPriv;
+    __GLXDRIdrawable *read = (__GLXDRIdrawable *) baseContext->readPriv;
+    __GLXDRIscreen *screen = (__GLXDRIscreen *) context->base.pGlxScreen;
+
+    return (*screen->core->bindContext)(context->driContext,
+					draw->driDrawable,
+					read->driDrawable);
+}
+
+#ifdef __DRI_TEX_BUFFER
+
+static int
+__glXDRIbindTexImage(__GLXcontext *baseContext,
+		     int buffer,
+		     __GLXdrawable *glxPixmap)
+{
+    __GLXDRIdrawable *drawable = (__GLXDRIdrawable *) glxPixmap;
+    const __DRItexBufferExtension *texBuffer = drawable->screen->texBuffer;
+    __GLXDRIcontext *context = (__GLXDRIcontext *) baseContext;
+
+    if (texBuffer == NULL)
+        return Success;
+
+    texBuffer->setTexBuffer(context->driContext,
+			    glxPixmap->target,
+			    drawable->driDrawable);
+
+    return Success;
+}
+
+static int
+__glXDRIreleaseTexImage(__GLXcontext *baseContext,
+			int buffer,
+			__GLXdrawable *pixmap)
+{
+    /* FIXME: Just unbind the texture? */
+    return Success;
+}
+
+#else
+
+static int
+__glXDRIbindTexImage(__GLXcontext *baseContext,
+		     int buffer,
+		     __GLXdrawable *glxPixmap)
+{
+    return Success;
+}
+
+static int
+__glXDRIreleaseTexImage(__GLXcontext *baseContext,
+			int buffer,
+			__GLXdrawable *pixmap)
+{
+    return Success;
+}
+
+#endif
+
+static __GLXtextureFromPixmap __glXDRItextureFromPixmap = {
+    __glXDRIbindTexImage,
+    __glXDRIreleaseTexImage
+};
+
+static void
+__glXDRIscreenDestroy(__GLXscreen *baseScreen)
+{
+    __GLXDRIscreen *screen = (__GLXDRIscreen *) baseScreen;
+
+    (*screen->core->destroyScreen)(screen->driScreen);
+
+    dlclose(screen->driver);
+
+    __glXScreenDestroy(baseScreen);
+
+    xfree(screen);
+}
+
+static __GLXcontext *
+__glXDRIscreenCreateContext(__GLXscreen *baseScreen,
+			    __GLXconfig *glxConfig,
+			    __GLXcontext *baseShareContext)
+{
+    __GLXDRIscreen *screen = (__GLXDRIscreen *) baseScreen;
+    __GLXDRIcontext *context, *shareContext;
+    __GLXDRIconfig *config = (__GLXDRIconfig *) glxConfig;
+    const __DRIcoreExtension *core = screen->core;
+    __DRIcontext *driShare;
+
+    shareContext = (__GLXDRIcontext *) baseShareContext;
+    if (shareContext)
+	driShare = shareContext->driContext;
+    else
+	driShare = NULL;
+
+    context = xalloc(sizeof *context);
+    if (context == NULL)
+	return NULL;
+
+    memset(context, 0, sizeof *context);
+    context->base.destroy           = __glXDRIcontextDestroy;
+    context->base.makeCurrent       = __glXDRIcontextMakeCurrent;
+    context->base.loseCurrent       = __glXDRIcontextLoseCurrent;
+    context->base.copy              = __glXDRIcontextCopy;
+    context->base.forceCurrent      = __glXDRIcontextForceCurrent;
+    context->base.textureFromPixmap = &__glXDRItextureFromPixmap;
+
+    context->driContext =
+	(*core->createNewContext)(screen->driScreen,
+				  config->driConfig, driShare, context);
+
+    return &context->base;
+}
+
+static void
+glxChangeGC(GCPtr gc, BITS32 mask, CARD32 val)
+{
+    CARD32 v[1];
+    v[0] = val;
+    dixChangeGC(NullClient, gc, mask, v, NULL);
+}
+
+static __GLXdrawable *
+__glXDRIscreenCreateDrawable(__GLXscreen *screen,
+			     DrawablePtr pDraw,
+			     int type,
+			     XID drawId,
+			     __GLXconfig *glxConfig)
+{
+    __GLXDRIscreen *driScreen = (__GLXDRIscreen *) screen;
+    __GLXDRIconfig *config = (__GLXDRIconfig *) glxConfig;
+    __GLXDRIdrawable *private;
+
+    ScreenPtr pScreen = driScreen->base.pScreen;
+
+    private = xalloc(sizeof *private);
+    if (private == NULL)
+	return NULL;
+
+    memset(private, 0, sizeof *private);
+
+    private->screen = driScreen;
+    if (!__glXDrawableInit(&private->base, screen,
+			   pDraw, type, drawId, glxConfig)) {
+        xfree(private);
+	return NULL;
+    }
+
+    private->base.destroy       = __glXDRIdrawableDestroy;
+    private->base.resize        = __glXDRIdrawableResize;
+    private->base.swapBuffers   = __glXDRIdrawableSwapBuffers;
+    private->base.copySubBuffer = __glXDRIdrawableCopySubBuffer;
+
+    private->gc = CreateScratchGC(pScreen, pDraw->depth);
+    private->cleargc = CreateScratchGC(pScreen, pDraw->depth);
+    private->swapgc = CreateScratchGC(pScreen, pDraw->depth);
+
+    glxChangeGC(private->gc, GCFunction, GXcopy);
+    glxChangeGC(private->cleargc, GCFunction, GXcopy);
+    glxChangeGC(private->swapgc, GCFunction, GXcopy);
+    glxChangeGC(private->swapgc, GCGraphicsExposures, FALSE);
+
+    private->driDrawable =
+	(*driScreen->swrast->createNewDrawable)(driScreen->driScreen,
+						config->driConfig,
+						private);
+
+    return &private->base;
+}
+
+static void
+swrastGetDrawableInfo(__DRIdrawable *draw,
+		      int *x, int *y, int *w, int *h,
+		      void *loaderPrivate)
+{
+    __GLXDRIdrawable *drawable = loaderPrivate;
+    DrawablePtr pDraw = drawable->base.pDraw;
+
+    *x = pDraw->x;
+    *y = pDraw->x;
+    *w = pDraw->width;
+    *h = pDraw->height;
+}
+
+static void
+swrastPutImage(__DRIdrawable *draw, int op,
+	     int x, int y, int w, int h, char *data,
+	     void *loaderPrivate)
+{
+    __GLXDRIdrawable *drawable = loaderPrivate;
+    DrawablePtr pDraw = drawable->base.pDraw;
+    GCPtr gc;
+
+    switch (op) {
+    case __DRI_SWRAST_IMAGE_OP_DRAW:
+	gc = drawable->gc;
+	break;
+    case __DRI_SWRAST_IMAGE_OP_CLEAR:
+	gc = drawable->cleargc;
+	break;
+    case __DRI_SWRAST_IMAGE_OP_SWAP:
+	gc = drawable->swapgc;
+	break;
+    default:
+	return;
+    }
+
+    ValidateGC(pDraw, gc);
+
+    gc->ops->PutImage(pDraw, gc, pDraw->depth,
+		      x, y, w, h, 0, ZPixmap, data);
+}
+
+static void
+swrastGetImage(__DRIdrawable *draw,
+	     int x, int y, int w, int h, char *data,
+	     void *loaderPrivate)
+{
+    __GLXDRIdrawable *drawable = loaderPrivate;
+    DrawablePtr pDraw = drawable->base.pDraw;
+    ScreenPtr pScreen = pDraw->pScreen;
+
+    pScreen->GetImage(pDraw, x, y, w, h, ZPixmap, ~0L, data);
+}
+
+static const __DRIswrastLoaderExtension swrastLoaderExtension = {
+    { __DRI_SWRAST_LOADER, __DRI_SWRAST_LOADER_VERSION },
+    swrastGetDrawableInfo,
+    swrastPutImage,
+    swrastGetImage
+};
+
+static const __DRIextension *loader_extensions[] = {
+    &systemTimeExtension.base,
+    &swrastLoaderExtension.base,
+    NULL
+};
+
+static void
+initializeExtensions(__GLXDRIscreen *screen)
+{
+    const __DRIextension **extensions;
+    int i;
+
+    extensions = screen->core->getExtensions(screen->driScreen);
+
+    for (i = 0; extensions[i]; i++) {
+#ifdef __DRI_COPY_SUB_BUFFER
+	if (strcmp(extensions[i]->name, __DRI_COPY_SUB_BUFFER) == 0) {
+	    screen->copySubBuffer =
+		(const __DRIcopySubBufferExtension *) extensions[i];
+	    /* GLX_MESA_copy_sub_buffer is always enabled. */
+	}
+#endif
+
+#ifdef __DRI_TEX_BUFFER
+	if (strcmp(extensions[i]->name, __DRI_TEX_BUFFER) == 0) {
+	    screen->texBuffer =
+		(const __DRItexBufferExtension *) extensions[i];
+	    /* GLX_EXT_texture_from_pixmap is always enabled. */
+	}
+#endif
+	/* Ignore unknown extensions */
+    }
+}
+
+static const char dri_driver_path[] = DRI_DRIVER_PATH;
+
+static __GLXscreen *
+__glXDRIscreenProbe(ScreenPtr pScreen)
+{
+    const char *driverName = "swrast";
+    __GLXDRIscreen *screen;
+    char filename[128];
+    unsigned int sareaHandle;
+    const __DRIextension **extensions;
+    const __DRIconfig **driConfigs;
+    int i;
+
+    screen = xalloc(sizeof *screen);
+    if (screen == NULL)
+	return NULL;
+    memset(screen, 0, sizeof *screen);
+
+    screen->base.destroy        = __glXDRIscreenDestroy;
+    screen->base.createContext  = __glXDRIscreenCreateContext;
+    screen->base.createDrawable = __glXDRIscreenCreateDrawable;
+    screen->base.swapInterval   = NULL;
+    screen->base.pScreen       = pScreen;
+
+    snprintf(filename, sizeof filename,
+	     "%s/%s_dri.so", dri_driver_path, driverName);
+
+    screen->driver = dlopen(filename, RTLD_LAZY | RTLD_LOCAL);
+    if (screen->driver == NULL) {
+	LogMessage(X_ERROR, "AIGLX error: dlopen of %s failed (%s)\n",
+		   filename, dlerror());
+        goto handle_error;
+    }
+
+    extensions = dlsym(screen->driver, __DRI_DRIVER_EXTENSIONS);
+    if (extensions == NULL) {
+	LogMessage(X_ERROR, "AIGLX error: %s exports no extensions (%s)\n",
+		   driverName, dlerror());
+	goto handle_error;
+    }
+
+    for (i = 0; extensions[i]; i++) {
+        if (strcmp(extensions[i]->name, __DRI_CORE) == 0 &&
+	    extensions[i]->version >= __DRI_CORE_VERSION) {
+		screen->core = (const __DRIcoreExtension *) extensions[i];
+	}
+        if (strcmp(extensions[i]->name, __DRI_SWRAST) == 0 &&
+	    extensions[i]->version >= __DRI_SWRAST_VERSION) {
+		screen->swrast = (const __DRIswrastExtension *) extensions[i];
+	}
+    }
+
+    if (screen->core == NULL || screen->swrast == NULL) {
+	LogMessage(X_ERROR, "AIGLX error: %s exports no DRI extension\n",
+		   driverName);
+	goto handle_error;
+    }
+
+    sareaHandle = 0;
+    screen->driScreen =
+	(*screen->swrast->createNewScreen)(pScreen->myNum,
+					   loader_extensions,
+					   &driConfigs,
+					   screen);
+
+    if (screen->driScreen == NULL) {
+	LogMessage(X_ERROR, "AIGLX error: Calling driver entry point failed");
+	goto handle_error;
+    }
+
+    initializeExtensions(screen);
+
+    screen->base.fbconfigs = glxConvertConfigs(screen->core, driConfigs);
+
+    __glXScreenInit(&screen->base, pScreen);
+
+    LogMessage(X_INFO,
+	       "AIGLX: Loaded and initialized %s\n", filename);
+
+    return &screen->base;
+
+ handle_error:
+    if (screen->driver)
+        dlclose(screen->driver);
+
+    xfree(screen);
+
+    LogMessage(X_ERROR, "AIGLX: reverting to software rendering\n");
+
+    return NULL;
+}
+
+__GLXprovider __glXDRIswrastProvider = {
+    __glXDRIscreenProbe,
+    "DRISWRAST",
+    NULL
+};
diff --git a/hw/xfree86/dixmods/glxmodule.c b/hw/xfree86/dixmods/glxmodule.c
index 88091cd69..dc94a129f 100644
--- a/hw/xfree86/dixmods/glxmodule.c
+++ b/hw/xfree86/dixmods/glxmodule.c
@@ -90,6 +90,10 @@ glxSetup(pointer module, pointer opts, int *errmaj, int *errmin)
 	return NULL;
     GlxPushProvider(provider);
 
+    provider = LoaderSymbol("__glXDRIswrastProvider");
+    if (provider)
+	GlxPushProvider(provider);
+
     xf86Msg(xf86Info.aiglxFrom, "AIGLX %s\n", 
 	    xf86Info.aiglx ? "enabled" : "disabled");
     if (xf86Info.aiglx) {
diff --git a/mi/miinitext.c b/mi/miinitext.c
index cc4c15c9d..aebe5b5e5 100644
--- a/mi/miinitext.c
+++ b/mi/miinitext.c
@@ -347,6 +347,7 @@ extern void XFree86DGAExtensionInit(INITARGS);
 #ifdef GLXEXT
 typedef struct __GLXprovider __GLXprovider;
 extern __GLXprovider __glXMesaProvider;
+extern __GLXprovider __glXDRIswrastProvider;
 extern void GlxPushProvider(__GLXprovider *impl);
 extern void GlxExtensionInit(INITARGS);
 #endif
@@ -662,6 +663,7 @@ InitExtensions(argc, argv)
 
 #ifdef GLXEXT
     GlxPushProvider(&__glXMesaProvider);
+    GlxPushProvider(&__glXDRIswrastProvider);
     if (!noGlxExtension) GlxExtensionInit();
 #endif
 }