Merge commit 'origin/master' into gallium-sampler-view

Conflicts:
	src/gallium/drivers/nv30/nv30_context.h
	src/gallium/drivers/nv30/nv30_state.c
	src/gallium/drivers/nv40/nv40_context.h
	src/gallium/drivers/nv40/nv40_state.c
	src/gallium/drivers/r300/r300_emit.c

22 files changed, 882 insertions, 321 deletions

diff --git a/src/mesa/SConscript b/src/mesa/SConscript
index e80ec5ee880..86da6f58bd8 100644
--- a/src/mesa/SConscript
+++ b/src/mesa/SConscript
@@ -250,6 +250,7 @@ if env['platform'] != 'winddk':
 		'glapi/glapi.c',
 		'glapi/glapi_dispatch.c',
 		'glapi/glapi_entrypoint.c',
+		'glapi/glapi_execmem.c',
 		'glapi/glapi_getproc.c',
 		'glapi/glapi_nop.c',
 		'glapi/glthread.c',
diff --git a/src/mesa/drivers/dri/common/dri_sw.c b/src/mesa/drivers/dri/common/dri_sw.c
new file mode 100644
index 00000000000..b7f9036f473
--- /dev/null
+++ b/src/mesa/drivers/dri/common/dri_sw.c
@@ -0,0 +1,267 @@
+/*
+ * Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ * Copyright 2010 George Sapountzis <[email protected]>
+ *
+ * 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.
+ */
+
+/**
+ * \file dri_sw.c
+ *
+ * DRISW utility functions, i.e. dri_util.c stripped from drm-specific bits.
+ */
+
+#include "dri_sw.h"
+#include "utils.h"
+
+
+/**
+ * Screen functions
+ */
+
+static void
+setupLoaderExtensions(__DRIscreen *psp,
+		      const __DRIextension **extensions)
+{
+    int i;
+
+    for (i = 0; extensions[i]; i++) {
+	if (strcmp(extensions[i]->name, __DRI_SWRAST_LOADER) == 0)
+	    psp->swrast_loader = (__DRIswrastLoaderExtension *) extensions[i];
+    }
+}
+
+static __DRIscreen *
+driCreateNewScreen(int scrn, const __DRIextension **extensions,
+		   const __DRIconfig ***driver_configs, void *data)
+{
+    static const __DRIextension *emptyExtensionList[] = { NULL };
+    __DRIscreen *psp;
+
+    (void) data;
+
+    psp = CALLOC_STRUCT(__DRIscreenRec);
+    if (!psp)
+	return NULL;
+
+    setupLoaderExtensions(psp, extensions);
+
+    psp->extensions = emptyExtensionList;
+    psp->myNum = scrn;
+
+    *driver_configs = driDriverAPI.InitScreen(psp);
+
+    if (*driver_configs == NULL) {
+	FREE(psp);
+	return NULL;
+    }
+
+    return psp;
+}
+
+static void driDestroyScreen(__DRIscreen *psp)
+{
+    if (psp) {
+	driDriverAPI.DestroyScreen(psp);
+
+	FREE(psp);
+    }
+}
+
+static const __DRIextension **driGetExtensions(__DRIscreen *psp)
+{
+    return psp->extensions;
+}
+
+
+/**
+ * Context functions
+ */
+
+static __DRIcontext *
+driCreateNewContext(__DRIscreen *psp, const __DRIconfig *config,
+		    __DRIcontext *shared, void *data)
+{
+    __DRIcontext *pcp;
+    void * const shareCtx = (shared != NULL) ? shared->driverPrivate : NULL;
+
+    pcp = CALLOC_STRUCT(__DRIcontextRec);
+    if (!pcp)
+	return NULL;
+
+    pcp->loaderPrivate = data;
+
+    pcp->driScreenPriv = psp;
+    pcp->driDrawablePriv = NULL;
+    pcp->driReadablePriv = NULL;
+
+    if (!driDriverAPI.CreateContext(&config->modes, pcp, shareCtx)) {
+	FREE(pcp);
+	return NULL;
+    }
+
+    return pcp;
+}
+
+static void
+driDestroyContext(__DRIcontext *pcp)
+{
+    if (pcp) {
+	driDriverAPI.DestroyContext(pcp);
+	FREE(pcp);
+    }
+}
+
+static int
+driCopyContext(__DRIcontext *dst, __DRIcontext *src, unsigned long mask)
+{
+    return GL_FALSE;
+}
+
+static void dri_get_drawable(__DRIdrawable *pdp);
+static void dri_put_drawable(__DRIdrawable *pdp);
+
+static int driBindContext(__DRIcontext *pcp,
+			  __DRIdrawable *pdp,
+			  __DRIdrawable *prp)
+{
+    /* Bind the drawable to the context */
+    if (pcp) {
+	pcp->driDrawablePriv = pdp;
+	pcp->driReadablePriv = prp;
+	if (pdp) {
+	    dri_get_drawable(pdp);
+	}
+	if ( prp && pdp != prp ) {
+	    dri_get_drawable(prp);
+	}
+    }
+
+    return driDriverAPI.MakeCurrent(pcp, pdp, prp);
+}
+
+static int driUnbindContext(__DRIcontext *pcp)
+{
+    __DRIdrawable *pdp;
+    __DRIdrawable *prp;
+
+    if (pcp == NULL)
+	return GL_FALSE;
+
+    pdp = pcp->driDrawablePriv;
+    prp = pcp->driReadablePriv;
+
+    /* already unbound */
+    if (!pdp && !prp)
+	return GL_TRUE;
+
+    driDriverAPI.UnbindContext(pcp);
+
+    dri_put_drawable(pdp);
+
+    if (prp != pdp) {
+	dri_put_drawable(prp);
+    }
+
+    pcp->driDrawablePriv = NULL;
+    pcp->driReadablePriv = NULL;
+
+    return GL_TRUE;
+}
+
+
+/**
+ * Drawable functions
+ */
+
+static void dri_get_drawable(__DRIdrawable *pdp)
+{
+    pdp->refcount++;
+}
+
+static void dri_put_drawable(__DRIdrawable *pdp)
+{
+    if (pdp) {
+	pdp->refcount--;
+	if (pdp->refcount)
+	    return;
+
+	driDriverAPI.DestroyBuffer(pdp);
+
+	FREE(pdp);
+    }
+}
+
+static __DRIdrawable *
+driCreateNewDrawable(__DRIscreen *psp,
+		     const __DRIconfig *config, void *data)
+{
+    __DRIdrawable *pdp;
+
+    pdp = CALLOC_STRUCT(__DRIdrawableRec);
+    if (!pdp)
+	return NULL;
+
+    pdp->loaderPrivate = data;
+
+    pdp->driScreenPriv = psp;
+
+    dri_get_drawable(pdp);
+
+    if (!driDriverAPI.CreateBuffer(psp, pdp, &config->modes, GL_FALSE)) {
+	FREE(pdp);
+	return NULL;
+    }
+
+    return pdp;
+}
+
+static void
+driDestroyDrawable(__DRIdrawable *pdp)
+{
+    dri_put_drawable(pdp);
+}
+
+static void driSwapBuffers(__DRIdrawable *pdp)
+{
+    driDriverAPI.SwapBuffers(pdp);
+}
+
+const __DRIcoreExtension driCoreExtension = {
+    { __DRI_CORE, __DRI_CORE_VERSION },
+    NULL, /* driCreateNewScreen */
+    driDestroyScreen,
+    driGetExtensions,
+    driGetConfigAttrib,
+    driIndexConfigAttrib,
+    NULL, /* driCreateNewDrawable */
+    driDestroyDrawable,
+    driSwapBuffers,
+    driCreateNewContext,
+    driCopyContext,
+    driDestroyContext,
+    driBindContext,
+    driUnbindContext
+};
+
+const __DRIswrastExtension driSWRastExtension = {
+    { __DRI_SWRAST, __DRI_SWRAST_VERSION },
+    driCreateNewScreen,
+    driCreateNewDrawable
+};
diff --git a/src/mesa/drivers/dri/common/dri_sw.h b/src/mesa/drivers/dri/common/dri_sw.h
new file mode 100644
index 00000000000..e353e26b34d
--- /dev/null
+++ b/src/mesa/drivers/dri/common/dri_sw.h
@@ -0,0 +1,112 @@
+/*
+ * Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ * Copyright 2010 George Sapountzis <[email protected]>
+ *
+ * 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.
+ */
+
+
+#ifndef _DRI_SW_H
+#define _DRI_SW_H
+
+#include <GL/gl.h>
+#include <GL/internal/glcore.h>
+#include <GL/internal/dri_interface.h>
+
+
+/**
+ * Extensions
+ */
+extern const __DRIcoreExtension driCoreExtension;
+extern const __DRIswrastExtension driSWRastExtension;
+
+
+/**
+ * Data types
+ */
+struct __DRIscreenRec {
+    int myNum;
+
+    int fd;
+
+    void *private;
+
+    const __DRIextension **extensions;
+
+    const __DRIswrastLoaderExtension *swrast_loader;
+};
+
+struct __DRIcontextRec {
+
+    void *driverPrivate;
+
+    void *loaderPrivate;
+
+    __DRIdrawable *driDrawablePriv;
+
+    __DRIdrawable *driReadablePriv;
+
+    __DRIscreen *driScreenPriv;
+};
+
+struct __DRIdrawableRec {
+
+    void *driverPrivate;
+
+    void *loaderPrivate;
+
+    __DRIscreen *driScreenPriv;
+
+    int refcount;
+};
+
+
+/**
+ * Driver callback functions
+ */
+struct __DriverAPIRec {
+    const __DRIconfig **(*InitScreen) (__DRIscreen * priv);
+
+    void (*DestroyScreen)(__DRIscreen *driScrnPriv);
+
+    GLboolean (*CreateContext)(const __GLcontextModes *glVis,
+                               __DRIcontext *driContextPriv,
+                               void *sharedContextPrivate);
+
+    void (*DestroyContext)(__DRIcontext *driContextPriv);
+
+    GLboolean (*CreateBuffer)(__DRIscreen *driScrnPriv,
+                              __DRIdrawable *driDrawPriv,
+                              const __GLcontextModes *glVis,
+                              GLboolean pixmapBuffer);
+
+    void (*DestroyBuffer)(__DRIdrawable *driDrawPriv);
+
+    void (*SwapBuffers)(__DRIdrawable *driDrawPriv);
+
+    GLboolean (*MakeCurrent)(__DRIcontext *driContextPriv,
+                             __DRIdrawable *driDrawPriv,
+                             __DRIdrawable *driReadPriv);
+
+    GLboolean (*UnbindContext)(__DRIcontext *driContextPriv);
+};
+
+extern const struct __DriverAPIRec driDriverAPI;
+
+#endif /* _DRI_SW_H */
diff --git a/src/mesa/drivers/dri/common/dri_util.c b/src/mesa/drivers/dri/common/dri_util.c
index 75c98825b79..badbb5ff824 100644
--- a/src/mesa/drivers/dri/common/dri_util.c
+++ b/src/mesa/drivers/dri/common/dri_util.c
@@ -47,28 +47,6 @@ const __DRIextension driReadDrawableExtension = {
     __DRI_READ_DRAWABLE, __DRI_READ_DRAWABLE_VERSION
 };
 
-/**
- * Print message to \c stderr if the \c LIBGL_DEBUG environment variable
- * is set. 
- * 
- * Is called from the drivers.
- * 
- * \param f \c printf like format string.
- */
-void
-__driUtilMessage(const char *f, ...)
-{
-    va_list args;
-
-    if (getenv("LIBGL_DEBUG")) {
-        fprintf(stderr, "libGL: ");
-        va_start(args, f);
-        vfprintf(stderr, f, args);
-        va_end(args);
-        fprintf(stderr, "\n");
-    }
-}
-
 GLint
 driIntersectArea( drm_clip_rect_t rect1, drm_clip_rect_t rect2 )
 {
diff --git a/src/mesa/drivers/dri/common/dri_util.h b/src/mesa/drivers/dri/common/dri_util.h
index 99c0f1e4422..f63583cebc0 100644
--- a/src/mesa/drivers/dri/common/dri_util.h
+++ b/src/mesa/drivers/dri/common/dri_util.h
@@ -552,10 +552,6 @@ struct __DRIscreenRec {
 };
 
 extern void
-__driUtilMessage(const char *f, ...);
-
-
-extern void
 __driUtilUpdateDrawableInfo(__DRIdrawable *pdp);
 
 extern float
diff --git a/src/mesa/drivers/dri/common/utils.c b/src/mesa/drivers/dri/common/utils.c
index b85b364c575..0dd879abc96 100644
--- a/src/mesa/drivers/dri/common/utils.c
+++ b/src/mesa/drivers/dri/common/utils.c
@@ -37,6 +37,29 @@
 #include "utils.h"
 
 
+/**
+ * Print message to \c stderr if the \c LIBGL_DEBUG environment variable
+ * is set. 
+ * 
+ * Is called from the drivers.
+ * 
+ * \param f \c printf like format string.
+ */
+void
+__driUtilMessage(const char *f, ...)
+{
+    va_list args;
+
+    if (getenv("LIBGL_DEBUG")) {
+        fprintf(stderr, "libGL: ");
+        va_start(args, f);
+        vfprintf(stderr, f, args);
+        va_end(args);
+        fprintf(stderr, "\n");
+    }
+}
+
+
 unsigned
 driParseDebugString( const char * debug, 
 		     const struct dri_debug_control * control  )
@@ -230,9 +253,6 @@ void driInitSingleExtension( GLcontext * ctx,
 /**
  * Utility function used by drivers to test the verions of other components.
  *
- * If one of the version requirements is not met, a message is logged using
- * \c __driUtilMessage.
- *
  * \param driver_name  Name of the driver.  Used in error messages.
  * \param driActual    Actual DRI version supplied __driCreateNewScreen.
  * \param driExpected  Minimum DRI version required by the driver.
@@ -244,7 +264,7 @@ void driInitSingleExtension( GLcontext * ctx,
  * \returns \c GL_TRUE if all version requirements are met.  Otherwise,
  *          \c GL_FALSE is returned.
  * 
- * \sa __driCreateNewScreen, driCheckDriDdxDrmVersions2, __driUtilMessage
+ * \sa __driCreateNewScreen, driCheckDriDdxDrmVersions2
  *
  * \todo
  * Now that the old \c driCheckDriDdxDrmVersions function is gone, this
diff --git a/src/mesa/drivers/dri/common/utils.h b/src/mesa/drivers/dri/common/utils.h
index 02ca3feb739..de6070c3987 100644
--- a/src/mesa/drivers/dri/common/utils.h
+++ b/src/mesa/drivers/dri/common/utils.h
@@ -69,6 +69,9 @@ struct __DRIutilversionRec2 {
     int    patch;        /**< Patch-level. */
 };
 
+extern void
+__driUtilMessage(const char *f, ...);
+
 extern unsigned driParseDebugString( const char * debug,
     const struct dri_debug_control * control );
 
diff --git a/src/mesa/drivers/dri/common/xmlconfig.c b/src/mesa/drivers/dri/common/xmlconfig.c
index 477259ea7e0..de4500a39b0 100644
--- a/src/mesa/drivers/dri/common/xmlconfig.c
+++ b/src/mesa/drivers/dri/common/xmlconfig.c
@@ -36,7 +36,7 @@
 #include <unistd.h>
 #include <errno.h>
 #include "main/imports.h"
-#include "dri_util.h"
+#include "utils.h"
 #include "xmlconfig.h"
 
 #undef GET_PROGRAM_NAME
diff --git a/src/mesa/drivers/dri/mach64/mach64_context.c b/src/mesa/drivers/dri/mach64/mach64_context.c
index 77e7e53ce04..73b1e08d4b8 100644
--- a/src/mesa/drivers/dri/mach64/mach64_context.c
+++ b/src/mesa/drivers/dri/mach64/mach64_context.c
@@ -31,6 +31,7 @@
 
 #include "main/glheader.h"
 #include "main/context.h"
+#include "main/extensions.h"
 #include "main/simple_list.h"
 #include "main/imports.h"
 
diff --git a/src/mesa/drivers/dri/r300/r300_blit.c b/src/mesa/drivers/dri/r300/r300_blit.c
index d870c7f852a..fa60628a5e0 100644
--- a/src/mesa/drivers/dri/r300/r300_blit.c
+++ b/src/mesa/drivers/dri/r300/r300_blit.c
@@ -582,12 +582,6 @@ unsigned r300_blit(GLcontext *ctx,
     if (dst_pitch % 2 > 0)
         ++dst_pitch;
 
-    /* Rendering to small buffer doesn't work.
-     * Looks like a hw limitation.
-     */
-    if (dst_pitch < 32)
-        return 0;
-
     /* Need to clamp the region size to make sure
      * we don't read outside of the source buffer
      * or write outside of the destination buffer.
diff --git a/src/mesa/drivers/dri/radeon/radeon_pixel_read.c b/src/mesa/drivers/dri/radeon/radeon_pixel_read.c
index b180c1d9a5c..dadb8002c7d 100644
--- a/src/mesa/drivers/dri/radeon/radeon_pixel_read.c
+++ b/src/mesa/drivers/dri/radeon/radeon_pixel_read.c
@@ -50,22 +50,33 @@ static gl_format gl_format_and_type_to_mesa_format(GLenum format, GLenum type)
             break;
         case GL_RGBA:
             switch (type) {
-                case GL_UNSIGNED_BYTE:
-                    return MESA_FORMAT_RGBA8888_REV;
                 case GL_FLOAT:
                     return MESA_FORMAT_RGBA_FLOAT32;
+                case GL_UNSIGNED_SHORT_5_5_5_1:
+                    return MESA_FORMAT_RGBA5551;
+                case GL_UNSIGNED_INT_8_8_8_8:
+                    return MESA_FORMAT_RGBA8888;
+                case GL_UNSIGNED_BYTE:
+                case GL_UNSIGNED_INT_8_8_8_8_REV:
+                    return MESA_FORMAT_RGBA8888_REV;
+            }
+            break;
+        case GL_BGRA:
+            switch (type) {
                 case GL_UNSIGNED_SHORT_4_4_4_4:
-                    return MESA_FORMAT_ARGB4444;
+                    return MESA_FORMAT_ARGB4444_REV;
                 case GL_UNSIGNED_SHORT_4_4_4_4_REV:
                     return MESA_FORMAT_ARGB4444;
                 case GL_UNSIGNED_SHORT_5_5_5_1:
-                    return MESA_FORMAT_RGBA5551;
-                case GL_UNSIGNED_SHORT_1_5_5_5_REV:
                     return MESA_FORMAT_ARGB1555_REV;
+                case GL_UNSIGNED_SHORT_1_5_5_5_REV:
+                    return MESA_FORMAT_ARGB1555;
                 case GL_UNSIGNED_INT_8_8_8_8:
-                    return MESA_FORMAT_ARGB8888;
-                case GL_UNSIGNED_INT_8_8_8_8_REV:
                     return MESA_FORMAT_ARGB8888_REV;
+                case GL_UNSIGNED_BYTE:
+                case GL_UNSIGNED_INT_8_8_8_8_REV:
+                    return MESA_FORMAT_ARGB8888;
+
             }
             break;
     }
diff --git a/src/mesa/drivers/dri/radeon/radeon_tex_copy.c b/src/mesa/drivers/dri/radeon/radeon_tex_copy.c
index e57d77e7ef2..29fd31ac23f 100644
--- a/src/mesa/drivers/dri/radeon/radeon_tex_copy.c
+++ b/src/mesa/drivers/dri/radeon/radeon_tex_copy.c
@@ -28,6 +28,7 @@
 #include "radeon_common.h"
 #include "radeon_texture.h"
 
+#include "main/enums.h"
 #include "main/image.h"
 #include "main/teximage.h"
 #include "main/texstate.h"
@@ -59,18 +60,27 @@ do_copy_texsubimage(GLcontext *ctx,
     }
 
     if (_mesa_get_format_bits(timg->base.TexFormat, GL_DEPTH_BITS) > 0) {
-        rrb = radeon_renderbuffer(ctx->ReadBuffer->_DepthBuffer);
+        if (ctx->ReadBuffer->_DepthBuffer && ctx->ReadBuffer->_DepthBuffer->Wrapped) {
+            rrb = radeon_renderbuffer(ctx->ReadBuffer->_DepthBuffer->Wrapped);
+        } else {
+            rrb = radeon_renderbuffer(ctx->ReadBuffer->_DepthBuffer);
+        }
         flip_y = ctx->ReadBuffer->Attachment[BUFFER_DEPTH].Type == GL_NONE;
     } else {
         rrb = radeon_renderbuffer(ctx->ReadBuffer->_ColorReadBuffer);
         flip_y = ctx->ReadBuffer->Attachment[BUFFER_COLOR0].Type == GL_NONE;
     }
 
+    // This is software renderbuffer, fallback to swrast
+    if (!rrb) {
+        return GL_FALSE;
+    }
+
     if (!timg->mt) {
         radeon_validate_texture_miptree(ctx, &tobj->base);
     }
 
-    assert(rrb && rrb->bo);
+    assert(rrb->bo);
     assert(timg->mt);
     assert(timg->mt->bo);
     assert(timg->base.Width >= dstx + width);
@@ -174,6 +184,10 @@ radeonCopyTexImage2D(GLcontext *ctx, GLenum target, GLint level,
     return;
 
 fail:
+    radeon_print(RADEON_FALLBACKS, RADEON_NORMAL,
+                 "Falling back to sw for glCopyTexImage2D (internalFormat %s, border %d)\n",
+                 _mesa_lookup_enum_by_nr(internalFormat), border);
+
     _mesa_meta_CopyTexImage2D(ctx, target, level, internalFormat, x, y,
                               width, height, border);
 }
@@ -192,7 +206,8 @@ radeonCopyTexSubImage2D(GLcontext *ctx, GLenum target, GLint level,
                              radeon_tex_obj(texObj), (radeon_texture_image *)texImage,
                              xoffset, yoffset, x, y, width, height)) {
 
-       //DEBUG_FALLBACKS
+        radeon_print(RADEON_FALLBACKS, RADEON_NORMAL,
+                     "Falling back to sw for glCopyTexSubImage2D\n");
 
         _mesa_meta_CopyTexSubImage2D(ctx, target, level,
                                      xoffset, yoffset, x, y, width, height);
diff --git a/src/mesa/drivers/dri/swrast/Makefile b/src/mesa/drivers/dri/swrast/Makefile
index 771169c1ff9..cc59eefdb2d 100644
--- a/src/mesa/drivers/dri/swrast/Makefile
+++ b/src/mesa/drivers/dri/swrast/Makefile
@@ -17,7 +17,8 @@ ASM_SOURCES =
 
 SWRAST_COMMON_SOURCES = \
 	../../common/driverfuncs.c \
-	../common/utils.c
+	../common/utils.c \
+	../common/dri_sw.c
 
 include ../Makefile.template
 
diff --git a/src/mesa/drivers/dri/swrast/swrast.c b/src/mesa/drivers/dri/swrast/swrast.c
index 03c672ecf1b..e9ca99a86f0 100644
--- a/src/mesa/drivers/dri/swrast/swrast.c
+++ b/src/mesa/drivers/dri/swrast/swrast.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2008 George Sapountzis <[email protected]>
+ * Copyright 2008, 2010 George Sapountzis <[email protected]>
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
  * copy of this software and associated documentation files (the "Software"),
@@ -54,17 +54,9 @@
  * Screen and config-related functions
  */
 
-static void
-setupLoaderExtensions(__DRIscreen *psp,
-		      const __DRIextension **extensions)
-{
-    int i;
-
-    for (i = 0; extensions[i]; i++) {
-	if (strcmp(extensions[i]->name, __DRI_SWRAST_LOADER) == 0)
-	    psp->swrast_loader = (__DRIswrastLoaderExtension *) extensions[i];
-    }
-}
+static const __DRIextension *dri_screen_extensions[] = {
+    NULL
+};
 
 static __DRIconfig **
 swrastFillInModes(__DRIscreen *psp,
@@ -143,26 +135,14 @@ swrastFillInModes(__DRIscreen *psp,
     return configs;
 }
 
-static __DRIscreen *
-driCreateNewScreen(int scrn, const __DRIextension **extensions,
-		   const __DRIconfig ***driver_configs, void *data)
+static const __DRIconfig **
+dri_init_screen(__DRIscreen * psp)
 {
-    static const __DRIextension *emptyExtensionList[] = { NULL };
-    __DRIscreen *psp;
     __DRIconfig **configs8, **configs16, **configs24, **configs32;
 
-    (void) data;
-
     TRACE;
 
-    psp = calloc(1, sizeof(*psp));
-    if (!psp)
-	return NULL;
-
-    setupLoaderExtensions(psp, extensions);
-
-    psp->num = scrn;
-    psp->extensions = emptyExtensionList;
+    psp->extensions = dri_screen_extensions;
 
     configs8  = swrastFillInModes(psp,  8,  8, 0, 1);
     configs16 = swrastFillInModes(psp, 16, 16, 0, 1);
@@ -171,28 +151,15 @@ driCreateNewScreen(int scrn, const __DRIextension **extensions,
 
     configs16 = driConcatConfigs(configs8, configs16);
     configs24 = driConcatConfigs(configs16, configs24);
-    *driver_configs = (const __DRIconfig **)
-       driConcatConfigs(configs24, configs32);
-
-    driInitExtensions( NULL, NULL, GL_FALSE );
-
-    return psp;
-}
-
-static void driDestroyScreen(__DRIscreen *psp)
-{
-    TRACE;
+    configs32 = driConcatConfigs(configs24, configs32);
 
-    if (psp) {
-	free(psp);
-    }
+    return (const __DRIconfig **)configs32;
 }
 
-static const __DRIextension **driGetExtensions(__DRIscreen *psp)
+static void
+dri_destroy_screen(__DRIscreen * sPriv)
 {
     TRACE;
-
-    return psp->extensions;
 }
 
 
@@ -336,94 +303,116 @@ swrast_new_renderbuffer(const GLvisual *visual, GLboolean front)
     return xrb;
 }
 
-static __DRIdrawable *
-driCreateNewDrawable(__DRIscreen *screen,
-		     const __DRIconfig *config, void *data)
+static GLboolean
+dri_create_buffer(__DRIscreen * sPriv,
+		  __DRIdrawable * dPriv,
+		  const __GLcontextModes * visual, GLboolean isPixmap)
 {
-    __DRIdrawable *buf;
+    struct dri_drawable *drawable = NULL;
+    GLframebuffer *fb;
     struct swrast_renderbuffer *frontrb, *backrb;
 
     TRACE;
 
-    buf = calloc(1, sizeof *buf);
-    if (!buf)
-	return NULL;
+    drawable = CALLOC_STRUCT(dri_drawable);
+    if (drawable == NULL)
+	goto drawable_fail;
 
-    buf->loaderPrivate = data;
+    dPriv->driverPrivate = drawable;
+    drawable->dPriv = dPriv;
 
-    buf->driScreenPriv = screen;
+    drawable->row = malloc(MAX_WIDTH * 4);
+    if (drawable->row == NULL)
+	goto drawable_fail;
 
-    buf->row = malloc(MAX_WIDTH * 4);
+    fb = &drawable->Base;
 
     /* basic framebuffer setup */
-    _mesa_initialize_window_framebuffer(&buf->Base, &config->modes);
+    _mesa_initialize_window_framebuffer(fb, visual);
 
     /* add front renderbuffer */
-    frontrb = swrast_new_renderbuffer(&config->modes, GL_TRUE);
-    _mesa_add_renderbuffer(&buf->Base, BUFFER_FRONT_LEFT, &frontrb->Base);
+    frontrb = swrast_new_renderbuffer(visual, GL_TRUE);
+    _mesa_add_renderbuffer(fb, BUFFER_FRONT_LEFT, &frontrb->Base);
 
     /* add back renderbuffer */
-    if (config->modes.doubleBufferMode) {
-	backrb = swrast_new_renderbuffer(&config->modes, GL_FALSE);
-	_mesa_add_renderbuffer(&buf->Base, BUFFER_BACK_LEFT, &backrb->Base);
+    if (visual->doubleBufferMode) {
+	backrb = swrast_new_renderbuffer(visual, GL_FALSE);
+	_mesa_add_renderbuffer(fb, BUFFER_BACK_LEFT, &backrb->Base);
     }
 
     /* add software renderbuffers */
-    _mesa_add_soft_renderbuffers(&buf->Base,
+    _mesa_add_soft_renderbuffers(fb,
 				 GL_FALSE, /* color */
-				 config->modes.haveDepthBuffer,
-				 config->modes.haveStencilBuffer,
-				 config->modes.haveAccumBuffer,
+				 visual->haveDepthBuffer,
+				 visual->haveStencilBuffer,
+				 visual->haveAccumBuffer,
 				 GL_FALSE, /* alpha */
 				 GL_FALSE /* aux bufs */);
 
-    return buf;
+    return GL_TRUE;
+
+drawable_fail:
+
+    if (drawable)
+	free(drawable->row);
+
+    FREE(drawable);
+
+    return GL_FALSE;
 }
 
 static void
-driDestroyDrawable(__DRIdrawable *buf)
+dri_destroy_buffer(__DRIdrawable * dPriv)
 {
     TRACE;
 
-    if (buf) {
-	struct gl_framebuffer *fb = &buf->Base;
+    if (dPriv) {
+	struct dri_drawable *drawable = dri_drawable(dPriv);
+	GLframebuffer *fb;
 
-	free(buf->row);
+	free(drawable->row);
+
+	fb = &drawable->Base;
 
 	fb->DeletePending = GL_TRUE;
 	_mesa_reference_framebuffer(&fb, NULL);
     }
 }
 
-static void driSwapBuffers(__DRIdrawable *buf)
+static void
+dri_swap_buffers(__DRIdrawable * dPriv)
 {
-    GET_CURRENT_CONTEXT(ctx);
+    __DRIscreen *sPriv = dPriv->driScreenPriv;
 
-    struct swrast_renderbuffer *frontrb =
-	swrast_renderbuffer(buf->Base.Attachment[BUFFER_FRONT_LEFT].Renderbuffer);
-    struct swrast_renderbuffer *backrb =
-	swrast_renderbuffer(buf->Base.Attachment[BUFFER_BACK_LEFT].Renderbuffer);
+    GET_CURRENT_CONTEXT(ctx);
 
-    __DRIscreen *screen = buf->driScreenPriv;
+    struct dri_drawable *drawable = dri_drawable(dPriv);
+    GLframebuffer *fb;
+    struct swrast_renderbuffer *frontrb, *backrb;
 
     TRACE;
 
+    fb = &drawable->Base;
+
+    frontrb = swrast_renderbuffer(fb->Attachment[BUFFER_FRONT_LEFT].Renderbuffer);
+    backrb = swrast_renderbuffer(fb->Attachment[BUFFER_BACK_LEFT].Renderbuffer);
+
     /* check for signle-buffered */
     if (backrb == NULL)
 	return;
 
     /* check if swapping currently bound buffer */
-    if (ctx && ctx->DrawBuffer == &(buf->Base)) {
+    if (ctx && ctx->DrawBuffer == fb) {
 	/* flush pending rendering */
 	_mesa_notifySwapBuffers(ctx);
     }
 
-    screen->swrast_loader->putImage(buf, __DRI_SWRAST_IMAGE_OP_SWAP,
-				    0, 0,
-				    frontrb->Base.Width,
-				    frontrb->Base.Height,
-				    backrb->Base.Data,
-				    buf->loaderPrivate);
+    sPriv->swrast_loader->putImage(dPriv, __DRI_SWRAST_IMAGE_OP_SWAP,
+				   0, 0,
+				   frontrb->Base.Width,
+				   frontrb->Base.Height,
+				   backrb->Base.Data,
+				   dPriv->loaderPrivate);
 }
 
 
@@ -434,13 +423,13 @@ static void driSwapBuffers(__DRIdrawable *buf)
 static void
 get_window_size( GLframebuffer *fb, GLsizei *w, GLsizei *h )
 {
-    __DRIdrawable *buf = swrast_drawable(fb);
-    __DRIscreen *screen = buf->driScreenPriv;
+    __DRIdrawable *dPriv = swrast_drawable(fb)->dPriv;
+    __DRIscreen *sPriv = dPriv->driScreenPriv;
     int x, y;
 
-    screen->swrast_loader->getDrawableInfo(buf,
-					   &x, &y, w, h,
-					   buf->loaderPrivate);
+    sPriv->swrast_loader->getDrawableInfo(dPriv,
+					  &x, &y, w, h,
+					  dPriv->loaderPrivate);
 }
 
 static void
@@ -502,37 +491,40 @@ swrast_init_driver_functions(struct dd_function_table *driver)
  * Context-related functions.
  */
 
-static __DRIcontext *
-driCreateNewContext(__DRIscreen *screen, const __DRIconfig *config,
-		    __DRIcontext *shared, void *data)
+static GLboolean
+dri_create_context(const __GLcontextModes * visual,
+		   __DRIcontext * cPriv, void *sharedContextPrivate)
 {
-    __DRIcontext *ctx;
-    GLcontext *mesaCtx;
+    struct dri_context *ctx = NULL;
+    struct dri_context *share = (struct dri_context *)sharedContextPrivate;
+    GLcontext *mesaCtx = NULL;
+    GLcontext *sharedCtx = NULL;
     struct dd_function_table functions;
 
     TRACE;
 
-    ctx = calloc(1, sizeof *ctx);
-    if (!ctx)
-	return NULL;
-
-    ctx->loaderPrivate = data;
+    ctx = CALLOC_STRUCT(dri_context);
+    if (ctx == NULL)
+	goto context_fail;
 
-    ctx->driScreenPriv = screen;
+    cPriv->driverPrivate = ctx;
+    ctx->cPriv = cPriv;
 
     /* build table of device driver functions */
     _mesa_init_driver_functions(&functions);
     swrast_init_driver_functions(&functions);
 
-    if (!_mesa_initialize_context(&ctx->Base, &config->modes,
-				  shared ? &shared->Base : NULL,
-				  &functions, (void *) ctx)) {
-      free(ctx);
-      return NULL;
+    if (share) {
+	sharedCtx = &share->Base;
     }
 
     mesaCtx = &ctx->Base;
 
+    /* basic context setup */
+    if (!_mesa_initialize_context(mesaCtx, visual, sharedCtx, &functions, (void *) cPriv)) {
+	goto context_fail;
+    }
+
     /* do bounds checking to prevent segfaults and server crashes! */
     mesaCtx->Const.CheckArrayBounds = GL_TRUE;
 
@@ -558,17 +550,28 @@ driCreateNewContext(__DRIscreen *screen, const __DRIconfig *config,
 
     _mesa_meta_init(mesaCtx);
 
-    return ctx;
+    driInitExtensions( mesaCtx, NULL, GL_FALSE );
+
+    return GL_TRUE;
+
+context_fail:
+
+    FREE(ctx);
+
+    return GL_FALSE;
 }
 
 static void
-driDestroyContext(__DRIcontext *ctx)
+dri_destroy_context(__DRIcontext * cPriv)
 {
-    GLcontext *mesaCtx;
     TRACE;
 
-    if (ctx) {
+    if (cPriv) {
+	struct dri_context *ctx = dri_context(cPriv);
+	GLcontext *mesaCtx;
+
 	mesaCtx = &ctx->Base;
+
         _mesa_meta_free(mesaCtx);
 	_swsetup_DestroyContext( mesaCtx );
 	_swrast_DestroyContext( mesaCtx );
@@ -578,26 +581,22 @@ driDestroyContext(__DRIcontext *ctx)
     }
 }
 
-static int
-driCopyContext(__DRIcontext *dst, __DRIcontext *src, unsigned long mask)
-{
-    TRACE;
-
-    _mesa_copy_context(&src->Base, &dst->Base, mask);
-    return GL_TRUE;
-}
-
-static int driBindContext(__DRIcontext *ctx,
-			  __DRIdrawable *draw,
-			  __DRIdrawable *read)
+static GLboolean
+dri_make_current(__DRIcontext * cPriv,
+		 __DRIdrawable * driDrawPriv,
+		 __DRIdrawable * driReadPriv)
 {
     GLcontext *mesaCtx;
     GLframebuffer *mesaDraw;
     GLframebuffer *mesaRead;
     TRACE;
 
-    if (ctx) {
-	if (!draw || !read)
+    if (cPriv) {
+	struct dri_context *ctx = dri_context(cPriv);
+	struct dri_drawable *draw = dri_drawable(driDrawPriv);
+	struct dri_drawable *read = dri_drawable(driReadPriv);
+
+	if (!driDrawPriv || !driReadPriv)
 	    return GL_FALSE;
 
 	mesaCtx = &ctx->Base;
@@ -614,7 +613,7 @@ static int driBindContext(__DRIcontext *ctx,
 	_glapi_check_multithread();
 
 	swrast_check_and_update_window_size(mesaCtx, mesaDraw);
-	if (read != draw)
+	if (mesaRead != mesaDraw)
 	    swrast_check_and_update_window_size(mesaCtx, mesaRead);
 
 	_mesa_make_current( mesaCtx,
@@ -629,35 +628,25 @@ static int driBindContext(__DRIcontext *ctx,
     return GL_TRUE;
 }
 
-static int driUnbindContext(__DRIcontext *ctx)
+static GLboolean
+dri_unbind_context(__DRIcontext * cPriv)
 {
     TRACE;
-    (void) ctx;
+    (void) cPriv;
     return GL_TRUE;
 }
 
 
-static const __DRIcoreExtension driCoreExtension = {
-    { __DRI_CORE, __DRI_CORE_VERSION },
-    NULL, /* driCreateNewScreen */
-    driDestroyScreen,
-    driGetExtensions,
-    driGetConfigAttrib,
-    driIndexConfigAttrib,
-    NULL, /* driCreateNewDrawable */
-    driDestroyDrawable,
-    driSwapBuffers,
-    driCreateNewContext,
-    driCopyContext,
-    driDestroyContext,
-    driBindContext,
-    driUnbindContext
-};
-
-static const __DRIswrastExtension driSWRastExtension = {
-    { __DRI_SWRAST, __DRI_SWRAST_VERSION },
-    driCreateNewScreen,
-    driCreateNewDrawable
+const struct __DriverAPIRec driDriverAPI = {
+    .InitScreen = dri_init_screen,
+    .DestroyScreen = dri_destroy_screen,
+    .CreateContext = dri_create_context,
+    .DestroyContext = dri_destroy_context,
+    .CreateBuffer = dri_create_buffer,
+    .DestroyBuffer = dri_destroy_buffer,
+    .SwapBuffers = dri_swap_buffers,
+    .MakeCurrent = dri_make_current,
+    .UnbindContext = dri_unbind_context,
 };
 
 /* This is the table of extensions that the loader will dlsym() for. */
diff --git a/src/mesa/drivers/dri/swrast/swrast_priv.h b/src/mesa/drivers/dri/swrast/swrast_priv.h
index 4722007f958..77670d89a5e 100644
--- a/src/mesa/drivers/dri/swrast/swrast_priv.h
+++ b/src/mesa/drivers/dri/swrast/swrast_priv.h
@@ -3,6 +3,7 @@
  * Version:  7.1
  *
  * Copyright (C) 1999-2008  Brian Paul   All Rights Reserved.
+ * Copyright 2008, 2010 George Sapountzis <[email protected]>
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
  * copy of this software and associated documentation files (the "Software"),
@@ -22,11 +23,6 @@
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  */
 
-/*
- * Authors:
- *    George Sapountzis <[email protected]>
- */
-
 
 #ifndef _SWRAST_PRIV_H
 #define _SWRAST_PRIV_H
@@ -34,6 +30,7 @@
 #include <GL/gl.h>
 #include <GL/internal/dri_interface.h>
 #include "main/mtypes.h"
+#include "dri_sw.h"
 
 
 /**
@@ -58,33 +55,51 @@
 /**
  * Data types
  */
-struct __DRIscreenRec {
-    int num;
-
-    const __DRIextension **extensions;
+struct dri_context
+{
+    /* mesa, base class, must be first */
+    GLcontext Base;
 
-    const __DRIswrastLoaderExtension *swrast_loader;
+    /* dri */
+    __DRIcontext *cPriv;
 };
 
-struct __DRIcontextRec {
-    GLcontext Base;
-
-    void *loaderPrivate;
+static INLINE struct dri_context *
+dri_context(__DRIcontext * driContextPriv)
+{
+    return (struct dri_context *)driContextPriv->driverPrivate;
+}
 
-    __DRIscreen *driScreenPriv;
-};
+static INLINE struct dri_context *
+swrast_context(GLcontext *ctx)
+{
+    return (struct dri_context *) ctx;
+}
 
-struct __DRIdrawableRec {
+struct dri_drawable
+{
+    /* mesa, base class, must be first */
     GLframebuffer Base;
 
-    void *loaderPrivate;
-
-    __DRIscreen *driScreenPriv;
+    /* dri */
+    __DRIdrawable *dPriv;
 
     /* scratch row for optimized front-buffer rendering */
     char *row;
 };
 
+static INLINE struct dri_drawable *
+dri_drawable(__DRIdrawable * driDrawPriv)
+{
+    return (struct dri_drawable *)driDrawPriv->driverPrivate;
+}
+
+static INLINE struct dri_drawable *
+swrast_drawable(GLframebuffer *fb)
+{
+    return (struct dri_drawable *) fb;
+}
+
 struct swrast_renderbuffer {
     struct gl_renderbuffer Base;
 
@@ -94,18 +109,6 @@ struct swrast_renderbuffer {
     GLuint bpp;
 };
 
-static INLINE __DRIcontext *
-swrast_context(GLcontext *ctx)
-{
-    return (__DRIcontext *) ctx;
-}
-
-static INLINE __DRIdrawable *
-swrast_drawable(GLframebuffer *fb)
-{
-    return (__DRIdrawable *) fb;
-}
-
 static INLINE struct swrast_renderbuffer *
 swrast_renderbuffer(struct gl_renderbuffer *rb)
 {
diff --git a/src/mesa/drivers/dri/swrast/swrast_span.c b/src/mesa/drivers/dri/swrast/swrast_span.c
index 5290dc82b91..c5681e34a91 100644
--- a/src/mesa/drivers/dri/swrast/swrast_span.c
+++ b/src/mesa/drivers/dri/swrast/swrast_span.c
@@ -3,6 +3,7 @@
  * Version:  7.1
  *
  * Copyright (C) 1999-2008  Brian Paul   All Rights Reserved.
+ * Copyright 2008, 2010 George Sapountzis <[email protected]>
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
  * copy of this software and associated documentation files (the "Software"),
@@ -22,11 +23,6 @@
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  */
 
-/*
- * Authors:
- *    George Sapountzis <[email protected]>
- */
-
 #include "swrast_priv.h"
 
 #define YFLIP(_xrb, Y) ((_xrb)->Base.Height - (Y) - 1)
diff --git a/src/mesa/drivers/dri/swrast/swrast_spantemp.h b/src/mesa/drivers/dri/swrast/swrast_spantemp.h
index 879a0c12e76..079726ae4ab 100644
--- a/src/mesa/drivers/dri/swrast/swrast_spantemp.h
+++ b/src/mesa/drivers/dri/swrast/swrast_spantemp.h
@@ -39,8 +39,8 @@
 static INLINE void
 PUT_PIXEL( GLcontext *glCtx, GLint x, GLint y, GLubyte *p )
 {
-    __DRIcontext *ctx = swrast_context(glCtx);
-    __DRIdrawable *draw = swrast_drawable(glCtx->DrawBuffer);
+    __DRIcontext *ctx = swrast_context(glCtx)->cPriv;
+    __DRIdrawable *draw = swrast_drawable(glCtx->DrawBuffer)->dPriv;
 
     __DRIscreen *screen = ctx->driScreenPriv;
 
@@ -53,8 +53,8 @@ PUT_PIXEL( GLcontext *glCtx, GLint x, GLint y, GLubyte *p )
 static INLINE void
 GET_PIXEL( GLcontext *glCtx, GLint x, GLint y, GLubyte *p )
 {
-    __DRIcontext *ctx = swrast_context(glCtx);
-    __DRIdrawable *read = swrast_drawable(glCtx->ReadBuffer);
+    __DRIcontext *ctx = swrast_context(glCtx)->cPriv;
+    __DRIdrawable *read = swrast_drawable(glCtx->ReadBuffer)->dPriv;
 
     __DRIscreen *screen = ctx->driScreenPriv;
 
@@ -65,8 +65,8 @@ GET_PIXEL( GLcontext *glCtx, GLint x, GLint y, GLubyte *p )
 static INLINE void
 PUT_ROW( GLcontext *glCtx, GLint x, GLint y, GLuint n, char *row )
 {
-    __DRIcontext *ctx = swrast_context(glCtx);
-    __DRIdrawable *draw = swrast_drawable(glCtx->DrawBuffer);
+    __DRIcontext *ctx = swrast_context(glCtx)->cPriv;
+    __DRIdrawable *draw = swrast_drawable(glCtx->DrawBuffer)->dPriv;
 
     __DRIscreen *screen = ctx->driScreenPriv;
 
@@ -78,8 +78,8 @@ PUT_ROW( GLcontext *glCtx, GLint x, GLint y, GLuint n, char *row )
 static INLINE void
 GET_ROW( GLcontext *glCtx, GLint x, GLint y, GLuint n, char *row )
 {
-    __DRIcontext *ctx = swrast_context(glCtx);
-    __DRIdrawable *read = swrast_drawable(glCtx->ReadBuffer);
+    __DRIcontext *ctx = swrast_context(glCtx)->cPriv;
+    __DRIdrawable *read = swrast_drawable(glCtx->ReadBuffer)->dPriv;
 
     __DRIscreen *screen = ctx->driScreenPriv;
 
diff --git a/src/mesa/glapi/glapi_entrypoint.c b/src/mesa/glapi/glapi_entrypoint.c
index 5e6e5995f24..c4f43f66a18 100644
--- a/src/mesa/glapi/glapi_entrypoint.c
+++ b/src/mesa/glapi/glapi_entrypoint.c
@@ -65,7 +65,7 @@ get_entrypoint_address(GLuint functionOffset)
 #endif
 
 
-#if defined(PTHREADS) || defined(GLX_USE_TLS)
+#if defined(USE_X86_ASM)
 
 /**
  * Perform platform-specific GL API entry-point fixups.
@@ -73,7 +73,7 @@ get_entrypoint_address(GLuint functionOffset)
 static void
 init_glapi_relocs( void )
 {
-#if defined(USE_X86_ASM) && defined(GLX_USE_TLS) && !defined(GLX_X86_READONLY_TEXT)
+#if defined(GLX_USE_TLS) && !defined(GLX_X86_READONLY_TEXT)
     extern unsigned long _x86_get_dispatch(void);
     char run_time_patch[] = {
        0x65, 0xa1, 0, 0, 0, 0 /* movl %gs:0,%eax */
@@ -88,8 +88,63 @@ init_glapi_relocs( void )
 	curr_func += DISPATCH_FUNCTION_SIZE;
     }
 #endif
-#ifdef USE_SPARC_ASM
-    extern void __glapi_sparc_icache_flush(unsigned int *);
+}
+
+
+/**
+ * Generate a dispatch function (entrypoint) which jumps through
+ * the given slot number (offset) in the current dispatch table.
+ * We need assembly language in order to accomplish this.
+ */
+_glapi_proc
+generate_entrypoint(GLuint functionOffset)
+{
+   /* 32 is chosen as something of a magic offset.  For x86, the dispatch
+    * at offset 32 is the first one where the offset in the
+    * "jmp OFFSET*4(%eax)" can't be encoded in a single byte.
+    */
+   const GLubyte * const template_func = gl_dispatch_functions_start 
+     + (DISPATCH_FUNCTION_SIZE * 32);
+   GLubyte * const code = (GLubyte *) _glapi_exec_malloc(DISPATCH_FUNCTION_SIZE);
+
+
+   if ( code != NULL ) {
+      (void) memcpy(code, template_func, DISPATCH_FUNCTION_SIZE);
+      fill_in_entrypoint_offset( (_glapi_proc) code, functionOffset );
+   }
+
+   return (_glapi_proc) code;
+}
+
+
+/**
+ * This function inserts a new dispatch offset into the assembly language
+ * stub that was generated with the preceeding function.
+ */
+void
+fill_in_entrypoint_offset(_glapi_proc entrypoint, GLuint offset)
+{
+   GLubyte * const code = (GLubyte *) entrypoint;
+
+#if defined(GLX_USE_TLS)
+   *((unsigned int *)(code +  8)) = 4 * offset;
+#elif defined(THREADS)
+   *((unsigned int *)(code + 11)) = 4 * offset;
+   *((unsigned int *)(code + 22)) = 4 * offset;
+#else
+   *((unsigned int *)(code +  7)) = 4 * offset;
+#endif
+}
+
+
+#elif defined(USE_SPARC_ASM)
+
+extern void __glapi_sparc_icache_flush(unsigned int *);
+
+static void
+init_glapi_relocs( void )
+{
+#if defined(PTHREADS) || defined(GLX_USE_TLS)
     static const unsigned int template[] = {
 #ifdef GLX_USE_TLS
 	0x05000000, /* sethi %hi(_glapi_tls_Dispatch), %g2 */
@@ -155,7 +210,7 @@ init_glapi_relocs( void )
     int idx;
 #endif
 
-#if defined(GLX_USE_TLS)
+#ifdef GLX_USE_TLS
     code[0] = template[0] | (dispatch >> 10);
     code[1] = template[1];
     __glapi_sparc_icache_flush(&code[0]);
@@ -215,51 +270,10 @@ init_glapi_relocs( void )
 #endif
 }
 
-void
-init_glapi_relocs_once( void )
-{
-   static pthread_once_t once_control = PTHREAD_ONCE_INIT;
-   pthread_once( & once_control, init_glapi_relocs );
-}
-
-#else
-
-void
-init_glapi_relocs_once( void ) { }
-
-#endif /* defined(PTHREADS) || defined(GLX_USE_TLS) */
-
-
-#ifdef USE_SPARC_ASM
-extern void __glapi_sparc_icache_flush(unsigned int *);
-#endif
 
-/**
- * Generate a dispatch function (entrypoint) which jumps through
- * the given slot number (offset) in the current dispatch table.
- * We need assembly language in order to accomplish this.
- */
 _glapi_proc
 generate_entrypoint(GLuint functionOffset)
 {
-#if defined(USE_X86_ASM)
-   /* 32 is chosen as something of a magic offset.  For x86, the dispatch
-    * at offset 32 is the first one where the offset in the
-    * "jmp OFFSET*4(%eax)" can't be encoded in a single byte.
-    */
-   const GLubyte * const template_func = gl_dispatch_functions_start 
-     + (DISPATCH_FUNCTION_SIZE * 32);
-   GLubyte * const code = (GLubyte *) malloc(DISPATCH_FUNCTION_SIZE);
-
-
-   if ( code != NULL ) {
-      (void) memcpy(code, template_func, DISPATCH_FUNCTION_SIZE);
-      fill_in_entrypoint_offset( (_glapi_proc) code, functionOffset );
-   }
-
-   return (_glapi_proc) code;
-#elif defined(USE_SPARC_ASM)
-
 #if defined(PTHREADS) || defined(GLX_USE_TLS)
    static const unsigned int template[] = {
       0x07000000, /* sethi %hi(0), %g3 */
@@ -274,7 +288,7 @@ generate_entrypoint(GLuint functionOffset)
    extern unsigned int __glapi_sparc_pthread_stub;
    unsigned long call_dest = (unsigned long ) &__glapi_sparc_pthread_stub;
 #endif
-   unsigned int *code = (unsigned int *) malloc(sizeof(template));
+   unsigned int *code = (unsigned int *) _glapi_exec_malloc(sizeof(template));
    if (code) {
       code[0] = template[0] | (functionOffset & 0x3fffff);
       code[1] = template[1];
@@ -287,45 +301,52 @@ generate_entrypoint(GLuint functionOffset)
    }
    return (_glapi_proc) code;
 #endif
-
-#else
-   (void) functionOffset;
-   return NULL;
-#endif /* USE_*_ASM */
 }
 
 
-/**
- * This function inserts a new dispatch offset into the assembly language
- * stub that was generated with the preceeding function.
- */
 void
 fill_in_entrypoint_offset(_glapi_proc entrypoint, GLuint offset)
 {
-#if defined(USE_X86_ASM)
-   GLubyte * const code = (GLubyte *) entrypoint;
-
-#if DISPATCH_FUNCTION_SIZE == 32
-   *((unsigned int *)(code + 11)) = 4 * offset;
-   *((unsigned int *)(code + 22)) = 4 * offset;
-#elif DISPATCH_FUNCTION_SIZE == 16 && defined( GLX_USE_TLS )
-   *((unsigned int *)(code +  8)) = 4 * offset;
-#elif DISPATCH_FUNCTION_SIZE == 16
-   *((unsigned int *)(code +  7)) = 4 * offset;
-#else
-# error Invalid DISPATCH_FUNCTION_SIZE!
-#endif
-
-#elif defined(USE_SPARC_ASM)
    unsigned int *code = (unsigned int *) entrypoint;
+
    code[0] &= ~0x3fffff;
    code[0] |= (offset * sizeof(void *)) & 0x3fffff;
    __glapi_sparc_icache_flush(&code[0]);
-#else
+}
+
+
+#else /* USE_*_ASM */
 
+static void
+init_glapi_relocs( void )
+{
+}
+
+
+_glapi_proc
+generate_entrypoint(GLuint functionOffset)
+{
+   (void) functionOffset;
+   return NULL;
+}
+
+
+void
+fill_in_entrypoint_offset(_glapi_proc entrypoint, GLuint offset)
+{
    /* an unimplemented architecture */
    (void) entrypoint;
    (void) offset;
+}
 
 #endif /* USE_*_ASM */
+
+
+void
+init_glapi_relocs_once( void )
+{
+#if defined(PTHREADS) || defined(GLX_USE_TLS)
+   static pthread_once_t once_control = PTHREAD_ONCE_INIT;
+   pthread_once( & once_control, init_glapi_relocs );
+#endif
 }
diff --git a/src/mesa/glapi/glapi_execmem.c b/src/mesa/glapi/glapi_execmem.c
new file mode 100644
index 00000000000..6a1fac597f3
--- /dev/null
+++ b/src/mesa/glapi/glapi_execmem.c
@@ -0,0 +1,127 @@
+/*
+ * Mesa 3-D graphics library
+ * Version:  6.5
+ *
+ * Copyright (C) 1999-2005  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.
+ */
+
+
+/**
+ * \file glapi_execmem.c
+ *
+ * Function for allocating executable memory for dispatch stubs.
+ *
+ * Copied from main/execmem.c and simplified for dispatch stubs.
+ */
+
+
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#include "glapi/mesa.h"
+#else
+#include "main/compiler.h"
+#endif
+
+#include "glapi/glthread.h"
+
+
+#if defined(__linux__) || defined(__OpenBSD__) || defined(_NetBSD__) || defined(__sun)
+
+#include <unistd.h>
+#include <sys/mman.h>
+
+#ifdef MESA_SELINUX
+#include <selinux/selinux.h>
+#endif
+
+
+#ifndef MAP_ANONYMOUS
+#define MAP_ANONYMOUS MAP_ANON
+#endif
+
+
+#define EXEC_MAP_SIZE (4*1024)
+
+_glthread_DECLARE_STATIC_MUTEX(exec_mutex);
+
+static unsigned int head = 0;
+
+static unsigned char *exec_mem = NULL;
+
+
+/*
+ * Dispatch stubs are of fixed size and never freed. Thus, we do not need to
+ * overlay a heap, we just mmap a page and manage through an index.
+ */
+
+static int
+init_map(void)
+{
+#ifdef MESA_SELINUX
+   if (is_selinux_enabled()) {
+      if (!security_get_boolean_active("allow_execmem") ||
+	  !security_get_boolean_pending("allow_execmem"))
+         return 0;
+   }
+#endif
+
+   if (!exec_mem)
+      exec_mem = mmap(NULL, EXEC_MAP_SIZE, PROT_EXEC | PROT_READ | PROT_WRITE,
+		      MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+
+   return (exec_mem != MAP_FAILED);
+}
+
+
+void *
+_glapi_exec_malloc(unsigned int size)
+{
+   void *addr = NULL;
+
+   _glthread_LOCK_MUTEX(exec_mutex);
+
+   if (!init_map())
+      goto bail;
+
+   /* free space check, assumes no integer overflow */
+   if (head + size > EXEC_MAP_SIZE)
+      goto bail;
+
+   /* allocation, assumes proper addr and size alignement */
+   addr = exec_mem + head;
+   head += size;
+
+bail:
+   _glthread_UNLOCK_MUTEX(exec_mutex);
+
+   return addr;
+}
+
+
+#else
+
+void *
+_glapi_exec_malloc(unsigned int size)
+{
+   return malloc(size);
+}
+
+
+#endif
diff --git a/src/mesa/glapi/glapi_getproc.c b/src/mesa/glapi/glapi_getproc.c
index 295657875dc..c73e8dd3b04 100644
--- a/src/mesa/glapi/glapi_getproc.c
+++ b/src/mesa/glapi/glapi_getproc.c
@@ -200,12 +200,6 @@ struct _glapi_function {
 };
 
 
-/*
- * Number of extension functions which we can dynamically add at runtime.
- */
-#define MAX_EXTENSION_FUNCS 300
-
-
 static struct _glapi_function ExtEntryTable[MAX_EXTENSION_FUNCS];
 static GLuint NumExtEntryPoints = 0;
 
diff --git a/src/mesa/glapi/glapi_priv.h b/src/mesa/glapi/glapi_priv.h
index 7cd81ee8dca..0e2de460f2e 100644
--- a/src/mesa/glapi/glapi_priv.h
+++ b/src/mesa/glapi/glapi_priv.h
@@ -28,6 +28,9 @@
 
 #include "glthread.h"
 
+
+/* getproc */
+
 extern void
 _glapi_check_table_not_null(const struct _glapi_table *table);
 
@@ -36,6 +39,14 @@ extern void
 _glapi_check_table(const struct _glapi_table *table);
 
 
+/* execmem */
+
+extern void *
+_glapi_exec_malloc(GLuint size);
+
+
+/* entrypoint */
+
 extern void
 init_glapi_relocs_once(void);
 
@@ -52,15 +63,35 @@ extern _glapi_proc
 get_entrypoint_address(GLuint functionOffset);
 
 
-#if defined(USE_X64_64_ASM) && defined(GLX_USE_TLS)
-# define DISPATCH_FUNCTION_SIZE  16
-#elif defined(USE_X86_ASM)
-# if defined(THREADS) && !defined(GLX_USE_TLS)
+/**
+ * Size (in bytes) of dispatch function (entrypoint).
+ */
+#if defined(USE_X86_ASM)
+# if defined(GLX_USE_TLS)
+#  define DISPATCH_FUNCTION_SIZE  16
+# elif defined(THREADS)
 #  define DISPATCH_FUNCTION_SIZE  32
 # else
 #  define DISPATCH_FUNCTION_SIZE  16
 # endif
 #endif
 
+#if defined(USE_X64_64_ASM)
+# if defined(GLX_USE_TLS)
+#  define DISPATCH_FUNCTION_SIZE  16
+# endif
+#endif
+
+
+/**
+ * Number of extension functions which we can dynamically add at runtime.
+ *
+ * Number of extension functions is also subject to the size of backing exec
+ * mem we allocate. For the common case of dispatch stubs with size 16 bytes,
+ * the two limits will be hit simultaneously. For larger dispatch function
+ * sizes, MAX_EXTENSION_FUNCS is effectively reduced.
+ */
+#define MAX_EXTENSION_FUNCS 256
+
 
 #endif
diff --git a/src/mesa/sources.mak b/src/mesa/sources.mak
index 74885548e5a..d59e24de1f2 100644
--- a/src/mesa/sources.mak
+++ b/src/mesa/sources.mak
@@ -89,6 +89,7 @@ GLAPI_SOURCES = \
 	glapi/glapi.c \
 	glapi/glapi_dispatch.c \
 	glapi/glapi_entrypoint.c \
+	glapi/glapi_execmem.c \
 	glapi/glapi_getproc.c \
 	glapi/glapi_nop.c \
 	glapi/glthread.c