libX11 mesa git update 10 Feb 2011

4 files changed, 820 insertions, 810 deletions

diff --git a/mesalib/src/mesa/state_tracker/st_atom_framebuffer.c b/mesalib/src/mesa/state_tracker/st_atom_framebuffer.c
index 3ba690200..76386fe01 100644
--- a/mesalib/src/mesa/state_tracker/st_atom_framebuffer.c
+++ b/mesalib/src/mesa/state_tracker/st_atom_framebuffer.c
@@ -1,180 +1,182 @@
-/**************************************************************************

- * 

- * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.

- * 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, sub license, and/or sell copies of the Software, and to

- * permit persons to whom the Software is furnished to do so, subject to

- * the following conditions:

- * 

- * The above copyright notice and this permission notice (including the

- * next paragraph) shall be included in all copies or substantial portions

- * of the Software.

- * 

- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS

- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF

- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.

- * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR

- * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,

- * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE

- * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

- * 

- **************************************************************************/

-

- /*

-  * Authors:

-  *   Keith Whitwell <keith@tungstengraphics.com>

-  *   Brian Paul

-  */

- 

-#include "st_context.h"

-#include "st_atom.h"

-#include "st_cb_fbo.h"

-#include "st_texture.h"

-#include "pipe/p_context.h"

-#include "cso_cache/cso_context.h"

-#include "util/u_math.h"

-#include "util/u_inlines.h"

-

-

-

-/**

- * When doing GL render to texture, we have to be sure that finalize_texture()

- * didn't yank out the pipe_resource that we earlier created a surface for.

- * Check for that here and create a new surface if needed.

- */

-static void

-update_renderbuffer_surface(struct st_context *st,

-                            struct st_renderbuffer *strb)

-{

-   struct pipe_context *pipe = st->pipe;

-   struct pipe_resource *resource = strb->rtt->pt;

-   int rtt_width = strb->Base.Width;

-   int rtt_height = strb->Base.Height;

-

-   if (!strb->surface ||

-       strb->surface->texture != resource ||

-       strb->surface->width != rtt_width ||

-       strb->surface->height != rtt_height) {

-      GLuint level;

-      /* find matching mipmap level size */

-      for (level = 0; level <= resource->last_level; level++) {

-         if (u_minify(resource->width0, level) == rtt_width &&

-             u_minify(resource->height0, level) == rtt_height) {

-            struct pipe_surface surf_tmpl;

-            memset(&surf_tmpl, 0, sizeof(surf_tmpl));

-            surf_tmpl.format = resource->format;

-            surf_tmpl.usage = PIPE_BIND_RENDER_TARGET;

-            surf_tmpl.u.tex.level = level;

-            surf_tmpl.u.tex.first_layer = strb->rtt_face + strb->rtt_slice;

-            surf_tmpl.u.tex.last_layer = strb->rtt_face + strb->rtt_slice;

-

-            pipe_surface_reference(&strb->surface, NULL);

-

-            strb->surface = pipe->create_surface(pipe,

-                                                 resource,

-                                                 &surf_tmpl);

-#if 0

-            printf("-- alloc new surface %d x %d into tex %p\n",

-                   strb->surface->width, strb->surface->height,

-                   texture);

-#endif

-            break;

-         }

-      }

-   }

-}

-

-

-/**

- * Update framebuffer state (color, depth, stencil, etc. buffers)

- */

-static void

-update_framebuffer_state( struct st_context *st )

-{

-   struct pipe_framebuffer_state *framebuffer = &st->state.framebuffer;

-   struct gl_framebuffer *fb = st->ctx->DrawBuffer;

-   struct st_renderbuffer *strb;

-   GLuint i;

-

-   framebuffer->width = fb->Width;

-   framebuffer->height = fb->Height;

-

-   /*printf("------ fb size %d x %d\n", fb->Width, fb->Height);*/

-

-   /* Examine Mesa's ctx->DrawBuffer->_ColorDrawBuffers state

-    * to determine which surfaces to draw to

-    */

-   framebuffer->nr_cbufs = 0;

-   for (i = 0; i < fb->_NumColorDrawBuffers; i++) {

-      strb = st_renderbuffer(fb->_ColorDrawBuffers[i]);

-

-      if (strb) {

-         /*printf("--------- framebuffer surface rtt %p\n", strb->rtt);*/

-         if (strb->rtt) {

-            /* rendering to a GL texture, may have to update surface */

-            update_renderbuffer_surface(st, strb);

-         }

-

-         if (strb->surface) {

-            pipe_surface_reference(&framebuffer->cbufs[framebuffer->nr_cbufs],

-                                   strb->surface);

-            framebuffer->nr_cbufs++;

-         }

-         strb->defined = GL_TRUE; /* we'll be drawing something */

-      }

-   }

-   for (i = framebuffer->nr_cbufs; i < PIPE_MAX_COLOR_BUFS; i++) {

-      pipe_surface_reference(&framebuffer->cbufs[i], NULL);

-   }

-

-   /*

-    * Depth/Stencil renderbuffer/surface.

-    */

-   strb = st_renderbuffer(fb->Attachment[BUFFER_DEPTH].Renderbuffer);

-   if (strb) {

-      strb = st_renderbuffer(strb->Base.Wrapped);

-      if (strb->rtt) {

-         /* rendering to a GL texture, may have to update surface */

-         update_renderbuffer_surface(st, strb);

-      }

-      pipe_surface_reference(&framebuffer->zsbuf, strb->surface);

-   }

-   else {

-      strb = st_renderbuffer(fb->Attachment[BUFFER_STENCIL].Renderbuffer);

-      if (strb) {

-         strb = st_renderbuffer(strb->Base.Wrapped);

-         assert(strb->surface);

-         pipe_surface_reference(&framebuffer->zsbuf, strb->surface);

-      }

-      else

-         pipe_surface_reference(&framebuffer->zsbuf, NULL);

-   }

-

-#ifdef DEBUG

-   /* Make sure the resource binding flags were set properly */

-   for (i = 0; i < framebuffer->nr_cbufs; i++) {

-      assert(framebuffer->cbufs[i]->texture->bind & PIPE_BIND_RENDER_TARGET);

-   }

-   if (framebuffer->zsbuf) {

-      assert(framebuffer->zsbuf->texture->bind & PIPE_BIND_DEPTH_STENCIL);

-   }

-#endif

-

-   cso_set_framebuffer(st->cso_context, framebuffer);

-}

-

-

-const struct st_tracked_state st_update_framebuffer = {

-   "st_update_framebuffer",				/* name */

-   {							/* dirty */

-      _NEW_BUFFERS,					/* mesa */

-      ST_NEW_FRAMEBUFFER,				/* st */

-   },

-   update_framebuffer_state				/* update */

-};

-

+/**************************************************************************
+ * 
+ * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * 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, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ * 
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ * 
+ **************************************************************************/
+
+ /*
+  * Authors:
+  *   Keith Whitwell <keith@tungstengraphics.com>
+  *   Brian Paul
+  */
+ 
+#include "st_context.h"
+#include "st_atom.h"
+#include "st_cb_fbo.h"
+#include "st_texture.h"
+#include "pipe/p_context.h"
+#include "cso_cache/cso_context.h"
+#include "util/u_math.h"
+#include "util/u_inlines.h"
+#include "util/u_format.h"
+
+
+/**
+ * When doing GL render to texture, we have to be sure that finalize_texture()
+ * didn't yank out the pipe_resource that we earlier created a surface for.
+ * Check for that here and create a new surface if needed.
+ */
+static void
+update_renderbuffer_surface(struct st_context *st,
+                            struct st_renderbuffer *strb)
+{
+   struct pipe_context *pipe = st->pipe;
+   struct pipe_resource *resource = strb->rtt->pt;
+   int rtt_width = strb->Base.Width;
+   int rtt_height = strb->Base.Height;
+   enum pipe_format format = st->ctx->Color.sRGBEnabled ? resource->format : util_format_linear(resource->format);
+
+   if (!strb->surface ||
+       strb->surface->format != format ||
+       strb->surface->texture != resource ||
+       strb->surface->width != rtt_width ||
+       strb->surface->height != rtt_height) {
+      GLuint level;
+      /* find matching mipmap level size */
+      for (level = 0; level <= resource->last_level; level++) {
+         if (u_minify(resource->width0, level) == rtt_width &&
+             u_minify(resource->height0, level) == rtt_height) {
+            struct pipe_surface surf_tmpl;
+            memset(&surf_tmpl, 0, sizeof(surf_tmpl));
+            surf_tmpl.format = format;
+            surf_tmpl.usage = PIPE_BIND_RENDER_TARGET;
+            surf_tmpl.u.tex.level = level;
+            surf_tmpl.u.tex.first_layer = strb->rtt_face + strb->rtt_slice;
+            surf_tmpl.u.tex.last_layer = strb->rtt_face + strb->rtt_slice;
+
+            pipe_surface_reference(&strb->surface, NULL);
+
+            strb->surface = pipe->create_surface(pipe,
+                                                 resource,
+                                                 &surf_tmpl);
+#if 0
+            printf("-- alloc new surface %d x %d into tex %p\n",
+                   strb->surface->width, strb->surface->height,
+                   texture);
+#endif
+            break;
+         }
+      }
+   }
+}
+
+
+/**
+ * Update framebuffer state (color, depth, stencil, etc. buffers)
+ */
+static void
+update_framebuffer_state( struct st_context *st )
+{
+   struct pipe_framebuffer_state *framebuffer = &st->state.framebuffer;
+   struct gl_framebuffer *fb = st->ctx->DrawBuffer;
+   struct st_renderbuffer *strb;
+   GLuint i;
+
+   framebuffer->width = fb->Width;
+   framebuffer->height = fb->Height;
+
+   /*printf("------ fb size %d x %d\n", fb->Width, fb->Height);*/
+
+   /* Examine Mesa's ctx->DrawBuffer->_ColorDrawBuffers state
+    * to determine which surfaces to draw to
+    */
+   framebuffer->nr_cbufs = 0;
+   for (i = 0; i < fb->_NumColorDrawBuffers; i++) {
+      strb = st_renderbuffer(fb->_ColorDrawBuffers[i]);
+
+      if (strb) {
+         /*printf("--------- framebuffer surface rtt %p\n", strb->rtt);*/
+         if (strb->rtt) {
+            /* rendering to a GL texture, may have to update surface */
+            update_renderbuffer_surface(st, strb);
+         }
+
+         if (strb->surface) {
+            pipe_surface_reference(&framebuffer->cbufs[framebuffer->nr_cbufs],
+                                   strb->surface);
+            framebuffer->nr_cbufs++;
+         }
+         strb->defined = GL_TRUE; /* we'll be drawing something */
+      }
+   }
+   for (i = framebuffer->nr_cbufs; i < PIPE_MAX_COLOR_BUFS; i++) {
+      pipe_surface_reference(&framebuffer->cbufs[i], NULL);
+   }
+
+   /*
+    * Depth/Stencil renderbuffer/surface.
+    */
+   strb = st_renderbuffer(fb->Attachment[BUFFER_DEPTH].Renderbuffer);
+   if (strb) {
+      strb = st_renderbuffer(strb->Base.Wrapped);
+      if (strb->rtt) {
+         /* rendering to a GL texture, may have to update surface */
+         update_renderbuffer_surface(st, strb);
+      }
+      pipe_surface_reference(&framebuffer->zsbuf, strb->surface);
+   }
+   else {
+      strb = st_renderbuffer(fb->Attachment[BUFFER_STENCIL].Renderbuffer);
+      if (strb) {
+         strb = st_renderbuffer(strb->Base.Wrapped);
+         assert(strb->surface);
+         pipe_surface_reference(&framebuffer->zsbuf, strb->surface);
+      }
+      else
+         pipe_surface_reference(&framebuffer->zsbuf, NULL);
+   }
+
+#ifdef DEBUG
+   /* Make sure the resource binding flags were set properly */
+   for (i = 0; i < framebuffer->nr_cbufs; i++) {
+      assert(framebuffer->cbufs[i]->texture->bind & PIPE_BIND_RENDER_TARGET);
+   }
+   if (framebuffer->zsbuf) {
+      assert(framebuffer->zsbuf->texture->bind & PIPE_BIND_DEPTH_STENCIL);
+   }
+#endif
+
+   cso_set_framebuffer(st->cso_context, framebuffer);
+}
+
+
+const struct st_tracked_state st_update_framebuffer = {
+   "st_update_framebuffer",				/* name */
+   {							/* dirty */
+      _NEW_BUFFERS,					/* mesa */
+      ST_NEW_FRAMEBUFFER,				/* st */
+   },
+   update_framebuffer_state				/* update */
+};
+
diff --git a/mesalib/src/mesa/state_tracker/st_cb_fbo.c b/mesalib/src/mesa/state_tracker/st_cb_fbo.c
index 3c73c24c5..398e32a34 100644
--- a/mesalib/src/mesa/state_tracker/st_cb_fbo.c
+++ b/mesalib/src/mesa/state_tracker/st_cb_fbo.c
@@ -1,620 +1,620 @@
-/**************************************************************************

- * 

- * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.

- * 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, sub license, and/or sell copies of the Software, and to

- * permit persons to whom the Software is furnished to do so, subject to

- * the following conditions:

- * 

- * The above copyright notice and this permission notice (including the

- * next paragraph) shall be included in all copies or substantial portions

- * of the Software.

- * 

- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS

- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF

- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.

- * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS 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.

- * 

- **************************************************************************/

-

-

-/**

- * Framebuffer/renderbuffer functions.

- *

- * \author Brian Paul

- */

-

-

-#include "main/imports.h"

-#include "main/context.h"

-#include "main/fbobject.h"

-#include "main/framebuffer.h"

-#include "main/macros.h"

-#include "main/mfeatures.h"

-#include "main/renderbuffer.h"

-

-#include "pipe/p_context.h"

-#include "pipe/p_defines.h"

-#include "pipe/p_screen.h"

-#include "st_context.h"

-#include "st_cb_fbo.h"

-#include "st_cb_flush.h"

-#include "st_format.h"

-#include "st_texture.h"

-#include "st_manager.h"

-

-#include "util/u_format.h"

-#include "util/u_inlines.h"

-#include "util/u_surface.h"

-

-

-/**

- * gl_renderbuffer::AllocStorage()

- * This is called to allocate the original drawing surface, and

- * during window resize.

- */

-static GLboolean

-st_renderbuffer_alloc_storage(struct gl_context * ctx,

-                              struct gl_renderbuffer *rb,

-                              GLenum internalFormat,

-                              GLuint width, GLuint height)

-{

-   struct st_context *st = st_context(ctx);

-   struct pipe_context *pipe = st->pipe;

-   struct pipe_screen *screen = st->pipe->screen;

-   struct st_renderbuffer *strb = st_renderbuffer(rb);

-   enum pipe_format format;

-   struct pipe_surface surf_tmpl;

-

-   if (strb->format != PIPE_FORMAT_NONE)

-      format = strb->format;

-   else

-      format = st_choose_renderbuffer_format(screen, internalFormat,

-                                             rb->NumSamples);

-      

-   /* init renderbuffer fields */

-   strb->Base.Width  = width;

-   strb->Base.Height = height;

-   strb->Base.Format = st_pipe_format_to_mesa_format(format);

-   strb->Base.DataType = st_format_datatype(format);

-

-   strb->defined = GL_FALSE;  /* undefined contents now */

-

-   if (strb->software) {

-      size_t size;

-      

-      free(strb->data);

-

-      assert(strb->format != PIPE_FORMAT_NONE);

-      

-      strb->stride = util_format_get_stride(strb->format, width);

-      size = util_format_get_2d_size(strb->format, strb->stride, height);

-      

-      strb->data = malloc(size);

-      

-      return strb->data != NULL;

-   }

-   else {

-      struct pipe_resource template;

-    

-      /* Free the old surface and texture

-       */

-      pipe_surface_reference( &strb->surface, NULL );

-      pipe_resource_reference( &strb->texture, NULL );

-      pipe_sampler_view_reference(&strb->sampler_view, NULL);

-

-      /* Setup new texture template.

-       */

-      memset(&template, 0, sizeof(template));

-      template.target = st->internal_target;

-      template.format = format;

-      template.width0 = width;

-      template.height0 = height;

-      template.depth0 = 1;

-      template.array_size = 1;

-      template.last_level = 0;

-      template.nr_samples = rb->NumSamples;

-      if (util_format_is_depth_or_stencil(format)) {

-         template.bind = PIPE_BIND_DEPTH_STENCIL;

-      }

-      else {

-         template.bind = (PIPE_BIND_DISPLAY_TARGET |

-                          PIPE_BIND_RENDER_TARGET);

-      }

-

-      strb->texture = screen->resource_create(screen, &template);

-

-      if (!strb->texture) 

-         return FALSE;

-

-      memset(&surf_tmpl, 0, sizeof(surf_tmpl));

-      u_surface_default_template(&surf_tmpl, strb->texture, template.bind);

-      strb->surface = pipe->create_surface(pipe,

-                                           strb->texture,

-                                           &surf_tmpl);

-      if (strb->surface) {

-         assert(strb->surface->texture);

-         assert(strb->surface->format);

-         assert(strb->surface->width == width);

-         assert(strb->surface->height == height);

-      }

-

-      return strb->surface != NULL;

-   }

-}

-

-

-/**

- * gl_renderbuffer::Delete()

- */

-static void

-st_renderbuffer_delete(struct gl_renderbuffer *rb)

-{

-   struct st_renderbuffer *strb = st_renderbuffer(rb);

-   ASSERT(strb);

-   pipe_surface_reference(&strb->surface, NULL);

-   pipe_resource_reference(&strb->texture, NULL);

-   pipe_sampler_view_reference(&strb->sampler_view, NULL);

-   free(strb->data);

-   free(strb);

-}

-

-

-/**

- * gl_renderbuffer::GetPointer()

- */

-static void *

-null_get_pointer(struct gl_context * ctx, struct gl_renderbuffer *rb,

-                 GLint x, GLint y)

-{

-   /* By returning NULL we force all software rendering to go through

-    * the span routines.

-    */

-#if 0

-   assert(0);  /* Should never get called with softpipe */

-#endif

-   return NULL;

-}

-

-

-/**

- * Called via ctx->Driver.NewFramebuffer()

- */

-static struct gl_framebuffer *

-st_new_framebuffer(struct gl_context *ctx, GLuint name)

-{

-   /* XXX not sure we need to subclass gl_framebuffer for pipe */

-   return _mesa_new_framebuffer(ctx, name);

-}

-

-

-/**

- * Called via ctx->Driver.NewRenderbuffer()

- */

-static struct gl_renderbuffer *

-st_new_renderbuffer(struct gl_context *ctx, GLuint name)

-{

-   struct st_renderbuffer *strb = ST_CALLOC_STRUCT(st_renderbuffer);

-   if (strb) {

-      _mesa_init_renderbuffer(&strb->Base, name);

-      strb->Base.Delete = st_renderbuffer_delete;

-      strb->Base.AllocStorage = st_renderbuffer_alloc_storage;

-      strb->Base.GetPointer = null_get_pointer;

-      strb->format = PIPE_FORMAT_NONE;

-      return &strb->Base;

-   }

-   return NULL;

-}

-

-

-/**

- * Allocate a renderbuffer for a an on-screen window (not a user-created

- * renderbuffer).  The window system code determines the format.

- */

-struct gl_renderbuffer *

-st_new_renderbuffer_fb(enum pipe_format format, int samples, boolean sw)

-{

-   struct st_renderbuffer *strb;

-

-   strb = ST_CALLOC_STRUCT(st_renderbuffer);

-   if (!strb) {

-      _mesa_error(NULL, GL_OUT_OF_MEMORY, "creating renderbuffer");

-      return NULL;

-   }

-

-   _mesa_init_renderbuffer(&strb->Base, 0);

-   strb->Base.ClassID = 0x4242; /* just a unique value */

-   strb->Base.NumSamples = samples;

-   strb->Base.Format = st_pipe_format_to_mesa_format(format);

-   strb->Base.DataType = st_format_datatype(format);

-   strb->format = format;

-   strb->software = sw;

-   

-   switch (format) {

-   case PIPE_FORMAT_R8G8B8A8_UNORM:

-   case PIPE_FORMAT_B8G8R8A8_UNORM:

-   case PIPE_FORMAT_A8R8G8B8_UNORM:

-   case PIPE_FORMAT_R8G8B8X8_UNORM:

-   case PIPE_FORMAT_B8G8R8X8_UNORM:

-   case PIPE_FORMAT_X8R8G8B8_UNORM:

-   case PIPE_FORMAT_B5G5R5A1_UNORM:

-   case PIPE_FORMAT_B4G4R4A4_UNORM:

-   case PIPE_FORMAT_B5G6R5_UNORM:

-      strb->Base.InternalFormat = GL_RGBA;

-      break;

-   case PIPE_FORMAT_Z16_UNORM:

-      strb->Base.InternalFormat = GL_DEPTH_COMPONENT16;

-      break;

-   case PIPE_FORMAT_Z32_UNORM:

-      strb->Base.InternalFormat = GL_DEPTH_COMPONENT32;

-      break;

-   case PIPE_FORMAT_Z24_UNORM_S8_USCALED:

-   case PIPE_FORMAT_S8_USCALED_Z24_UNORM:

-   case PIPE_FORMAT_Z24X8_UNORM:

-   case PIPE_FORMAT_X8Z24_UNORM:

-      strb->Base.InternalFormat = GL_DEPTH24_STENCIL8_EXT;

-      break;

-   case PIPE_FORMAT_S8_USCALED:

-      strb->Base.InternalFormat = GL_STENCIL_INDEX8_EXT;

-      break;

-   case PIPE_FORMAT_R16G16B16A16_SNORM:

-      strb->Base.InternalFormat = GL_RGBA16;

-      break;

-   case PIPE_FORMAT_R8_UNORM:

-      strb->Base.InternalFormat = GL_R8;

-      break;

-   case PIPE_FORMAT_R8G8_UNORM:

-      strb->Base.InternalFormat = GL_RG8;

-      break;

-   case PIPE_FORMAT_R16_UNORM:

-      strb->Base.InternalFormat = GL_R16;

-      break;

-   case PIPE_FORMAT_R16G16_UNORM:

-      strb->Base.InternalFormat = GL_RG16;

-      break;

-   default:

-      _mesa_problem(NULL,

-		    "Unexpected format in st_new_renderbuffer_fb");

-      free(strb);

-      return NULL;

-   }

-

-   /* st-specific methods */

-   strb->Base.Delete = st_renderbuffer_delete;

-   strb->Base.AllocStorage = st_renderbuffer_alloc_storage;

-   strb->Base.GetPointer = null_get_pointer;

-

-   /* surface is allocated in st_renderbuffer_alloc_storage() */

-   strb->surface = NULL;

-

-   return &strb->Base;

-}

-

-

-

-

-/**

- * Called via ctx->Driver.BindFramebufferEXT().

- */

-static void

-st_bind_framebuffer(struct gl_context *ctx, GLenum target,

-                    struct gl_framebuffer *fb, struct gl_framebuffer *fbread)

-{

-

-}

-

-/**

- * Called by ctx->Driver.FramebufferRenderbuffer

- */

-static void

-st_framebuffer_renderbuffer(struct gl_context *ctx, 

-                            struct gl_framebuffer *fb,

-                            GLenum attachment,

-                            struct gl_renderbuffer *rb)

-{

-   /* XXX no need for derivation? */

-   _mesa_framebuffer_renderbuffer(ctx, fb, attachment, rb);

-}

-

-

-/**

- * Called by ctx->Driver.RenderTexture

- */

-static void

-st_render_texture(struct gl_context *ctx,

-                  struct gl_framebuffer *fb,

-                  struct gl_renderbuffer_attachment *att)

-{

-   struct st_context *st = st_context(ctx);

-   struct pipe_context *pipe = st->pipe;

-   struct st_renderbuffer *strb;

-   struct gl_renderbuffer *rb;

-   struct pipe_resource *pt = st_get_texobj_resource(att->Texture);

-   struct st_texture_object *stObj;

-   const struct gl_texture_image *texImage;

-   struct pipe_surface surf_tmpl;

-

-   /* When would this fail?  Perhaps assert? */

-   if (!pt) 

-      return;

-

-   /* get pointer to texture image we're rendeing to */

-   texImage = att->Texture->Image[att->CubeMapFace][att->TextureLevel];

-

-   /* create new renderbuffer which wraps the texture image */

-   rb = st_new_renderbuffer(ctx, 0);

-   if (!rb) {

-      _mesa_error(ctx, GL_OUT_OF_MEMORY, "glFramebufferTexture()");

-      return;

-   }

-

-   _mesa_reference_renderbuffer(&att->Renderbuffer, rb);

-   assert(rb->RefCount == 1);

-   rb->AllocStorage = NULL; /* should not get called */

-   strb = st_renderbuffer(rb);

-

-   assert(strb->Base.RefCount > 0);

-

-   /* get the texture for the texture object */

-   stObj = st_texture_object(att->Texture);

-

-   /* point renderbuffer at texobject */

-   strb->rtt = stObj;

-   strb->rtt_level = att->TextureLevel;

-   strb->rtt_face = att->CubeMapFace;

-   strb->rtt_slice = att->Zoffset;

-

-   rb->Width = texImage->Width2;

-   rb->Height = texImage->Height2;

-   rb->_BaseFormat = texImage->_BaseFormat;

-   /*printf("***** render to texture level %d: %d x %d\n", att->TextureLevel, rb->Width, rb->Height);*/

-

-   /*printf("***** pipe texture %d x %d\n", pt->width0, pt->height0);*/

-

-   pipe_resource_reference( &strb->texture, pt );

-

-   pipe_surface_reference(&strb->surface, NULL);

-

-   pipe_sampler_view_reference(&strb->sampler_view,

-                               st_get_texture_sampler_view(stObj, pipe));

-

-   assert(strb->rtt_level <= strb->texture->last_level);

-

-   /* new surface for rendering into the texture */

-   memset(&surf_tmpl, 0, sizeof(surf_tmpl));

-   surf_tmpl.format = util_format_linear(strb->texture->format);

-   surf_tmpl.usage = PIPE_BIND_RENDER_TARGET;

-   surf_tmpl.u.tex.level = strb->rtt_level;

-   surf_tmpl.u.tex.first_layer = strb->rtt_face + strb->rtt_slice;

-   surf_tmpl.u.tex.last_layer = strb->rtt_face + strb->rtt_slice;

-   strb->surface = pipe->create_surface(pipe,

-                                        strb->texture,

-                                        &surf_tmpl);

-

-   strb->format = pt->format;

-

-   strb->Base.Format = st_pipe_format_to_mesa_format(pt->format);

-   strb->Base.DataType = st_format_datatype(pt->format);

-

-   /*

-   printf("RENDER TO TEXTURE obj=%p pt=%p surf=%p  %d x %d\n",

-          att->Texture, pt, strb->surface, rb->Width, rb->Height);

-   */

-

-   /* Invalidate buffer state so that the pipe's framebuffer state

-    * gets updated.

-    * That's where the new renderbuffer (which we just created) gets

-    * passed to the pipe as a (color/depth) render target.

-    */

-   st_invalidate_state(ctx, _NEW_BUFFERS);

-}

-

-

-/**

- * Called via ctx->Driver.FinishRenderTexture.

- */

-static void

-st_finish_render_texture(struct gl_context *ctx,

-                         struct gl_renderbuffer_attachment *att)

-{

-   struct st_context *st = st_context(ctx);

-   struct st_renderbuffer *strb = st_renderbuffer(att->Renderbuffer);

-

-   if (!strb)

-      return;

-

-   st_flush(st, PIPE_FLUSH_RENDER_CACHE, NULL);

-

-   strb->rtt = NULL;

-

-   /*

-   printf("FINISH RENDER TO TEXTURE surf=%p\n", strb->surface);

-   */

-

-   /* restore previous framebuffer state */

-   st_invalidate_state(ctx, _NEW_BUFFERS);

-}

-

-

-/**

- * Validate a renderbuffer attachment for a particular set of bindings.

- */

-static GLboolean

-st_validate_attachment(struct pipe_screen *screen,

-		       const struct gl_renderbuffer_attachment *att,

-		       unsigned bindings)

-{

-   const struct st_texture_object *stObj = st_texture_object(att->Texture);

-

-   /* Only validate texture attachments for now, since

-    * st_renderbuffer_alloc_storage makes sure that

-    * the format is supported.

-    */

-   if (att->Type != GL_TEXTURE)

-      return GL_TRUE;

-

-   if (!stObj)

-      return GL_FALSE;

-

-   return screen->is_format_supported(screen, stObj->pt->format,

-                                      PIPE_TEXTURE_2D,

-                                      stObj->pt->nr_samples, bindings, 0);

-}

-

-

-/**

- * Check if two renderbuffer attachments name a combined depth/stencil

- * renderbuffer.

- */

-GLboolean

-st_is_depth_stencil_combined(const struct gl_renderbuffer_attachment *depth,

-                             const struct gl_renderbuffer_attachment *stencil)

-{

-   assert(depth && stencil);

-

-   if (depth->Type == stencil->Type) {

-      if (depth->Type == GL_RENDERBUFFER_EXT &&

-          depth->Renderbuffer == stencil->Renderbuffer)

-         return GL_TRUE;

-

-      if (depth->Type == GL_TEXTURE &&

-          depth->Texture == stencil->Texture)

-         return GL_TRUE;

-   }

-

-   return GL_FALSE;

-}

- 

-

-/**

- * Check that the framebuffer configuration is valid in terms of what

- * the driver can support.

- *

- * For Gallium we only supports combined Z+stencil, not separate buffers.

- */

-static void

-st_validate_framebuffer(struct gl_context *ctx, struct gl_framebuffer *fb)

-{

-   struct st_context *st = st_context(ctx);

-   struct pipe_screen *screen = st->pipe->screen;

-   const struct gl_renderbuffer_attachment *depth =

-         &fb->Attachment[BUFFER_DEPTH];

-   const struct gl_renderbuffer_attachment *stencil =

-         &fb->Attachment[BUFFER_STENCIL];

-   GLuint i;

-

-   if (depth->Type && stencil->Type && depth->Type != stencil->Type) {

-      fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED_EXT;

-      return;

-   }

-   if (depth->Type == GL_RENDERBUFFER_EXT &&

-       stencil->Type == GL_RENDERBUFFER_EXT &&

-       depth->Renderbuffer != stencil->Renderbuffer) {

-      fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED_EXT;

-      return;

-   }

-   if (depth->Type == GL_TEXTURE &&

-       stencil->Type == GL_TEXTURE &&

-       depth->Texture != stencil->Texture) {

-      fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED_EXT;

-      return;

-   }

-

-   if (!st_validate_attachment(screen,

-                               depth,

-			       PIPE_BIND_DEPTH_STENCIL)) {

-      fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED_EXT;

-      return;

-   }

-   if (!st_validate_attachment(screen,

-                               stencil,

-			       PIPE_BIND_DEPTH_STENCIL)) {

-      fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED_EXT;

-      return;

-   }

-   for (i = 0; i < ctx->Const.MaxColorAttachments; i++) {

-      if (!st_validate_attachment(screen,

-				  &fb->Attachment[BUFFER_COLOR0 + i],

-				  PIPE_BIND_RENDER_TARGET)) {

-	 fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED_EXT;

-	 return;

-      }

-   }

-}

-

-

-/**

- * Called via glDrawBuffer.

- */

-static void

-st_DrawBuffers(struct gl_context *ctx, GLsizei count, const GLenum *buffers)

-{

-   struct st_context *st = st_context(ctx);

-   struct gl_framebuffer *fb = ctx->DrawBuffer;

-   GLuint i;

-

-   (void) count;

-   (void) buffers;

-

-   /* add the renderbuffers on demand */

-   for (i = 0; i < fb->_NumColorDrawBuffers; i++) {

-      gl_buffer_index idx = fb->_ColorDrawBufferIndexes[i];

-      st_manager_add_color_renderbuffer(st, fb, idx);

-   }

-}

-

-

-/**

- * Called via glReadBuffer.

- */

-static void

-st_ReadBuffer(struct gl_context *ctx, GLenum buffer)

-{

-   struct st_context *st = st_context(ctx);

-   struct gl_framebuffer *fb = ctx->ReadBuffer;

-

-   (void) buffer;

-

-   /* add the renderbuffer on demand */

-   st_manager_add_color_renderbuffer(st, fb, fb->_ColorReadBufferIndex);

-}

-

-

-void st_init_fbo_functions(struct dd_function_table *functions)

-{

-#if FEATURE_EXT_framebuffer_object

-   functions->NewFramebuffer = st_new_framebuffer;

-   functions->NewRenderbuffer = st_new_renderbuffer;

-   functions->BindFramebuffer = st_bind_framebuffer;

-   functions->FramebufferRenderbuffer = st_framebuffer_renderbuffer;

-   functions->RenderTexture = st_render_texture;

-   functions->FinishRenderTexture = st_finish_render_texture;

-   functions->ValidateFramebuffer = st_validate_framebuffer;

-#endif

-   /* no longer needed by core Mesa, drivers handle resizes...

-   functions->ResizeBuffers = st_resize_buffers;

-   */

-

-   functions->DrawBuffers = st_DrawBuffers;

-   functions->ReadBuffer = st_ReadBuffer;

-}

-

-/* XXX unused ? */

-struct pipe_sampler_view *

-st_get_renderbuffer_sampler_view(struct st_renderbuffer *rb,

-                                 struct pipe_context *pipe)

-{

-   if (!rb->sampler_view) {

-      rb->sampler_view = st_create_texture_sampler_view(pipe, rb->texture);

-   }

-

-   return rb->sampler_view;

-}

+/**************************************************************************
+ * 
+ * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * 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, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ * 
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS 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.
+ * 
+ **************************************************************************/
+
+
+/**
+ * Framebuffer/renderbuffer functions.
+ *
+ * \author Brian Paul
+ */
+
+
+#include "main/imports.h"
+#include "main/context.h"
+#include "main/fbobject.h"
+#include "main/framebuffer.h"
+#include "main/macros.h"
+#include "main/mfeatures.h"
+#include "main/renderbuffer.h"
+
+#include "pipe/p_context.h"
+#include "pipe/p_defines.h"
+#include "pipe/p_screen.h"
+#include "st_context.h"
+#include "st_cb_fbo.h"
+#include "st_cb_flush.h"
+#include "st_format.h"
+#include "st_texture.h"
+#include "st_manager.h"
+
+#include "util/u_format.h"
+#include "util/u_inlines.h"
+#include "util/u_surface.h"
+
+
+/**
+ * gl_renderbuffer::AllocStorage()
+ * This is called to allocate the original drawing surface, and
+ * during window resize.
+ */
+static GLboolean
+st_renderbuffer_alloc_storage(struct gl_context * ctx,
+                              struct gl_renderbuffer *rb,
+                              GLenum internalFormat,
+                              GLuint width, GLuint height)
+{
+   struct st_context *st = st_context(ctx);
+   struct pipe_context *pipe = st->pipe;
+   struct pipe_screen *screen = st->pipe->screen;
+   struct st_renderbuffer *strb = st_renderbuffer(rb);
+   enum pipe_format format;
+   struct pipe_surface surf_tmpl;
+
+   if (strb->format != PIPE_FORMAT_NONE)
+      format = strb->format;
+   else
+      format = st_choose_renderbuffer_format(screen, internalFormat,
+                                             rb->NumSamples);
+      
+   /* init renderbuffer fields */
+   strb->Base.Width  = width;
+   strb->Base.Height = height;
+   strb->Base.Format = st_pipe_format_to_mesa_format(format);
+   strb->Base.DataType = st_format_datatype(format);
+
+   strb->defined = GL_FALSE;  /* undefined contents now */
+
+   if (strb->software) {
+      size_t size;
+      
+      free(strb->data);
+
+      assert(strb->format != PIPE_FORMAT_NONE);
+      
+      strb->stride = util_format_get_stride(strb->format, width);
+      size = util_format_get_2d_size(strb->format, strb->stride, height);
+      
+      strb->data = malloc(size);
+      
+      return strb->data != NULL;
+   }
+   else {
+      struct pipe_resource template;
+    
+      /* Free the old surface and texture
+       */
+      pipe_surface_reference( &strb->surface, NULL );
+      pipe_resource_reference( &strb->texture, NULL );
+      pipe_sampler_view_reference(&strb->sampler_view, NULL);
+
+      /* Setup new texture template.
+       */
+      memset(&template, 0, sizeof(template));
+      template.target = st->internal_target;
+      template.format = format;
+      template.width0 = width;
+      template.height0 = height;
+      template.depth0 = 1;
+      template.array_size = 1;
+      template.last_level = 0;
+      template.nr_samples = rb->NumSamples;
+      if (util_format_is_depth_or_stencil(format)) {
+         template.bind = PIPE_BIND_DEPTH_STENCIL;
+      }
+      else {
+         template.bind = (PIPE_BIND_DISPLAY_TARGET |
+                          PIPE_BIND_RENDER_TARGET);
+      }
+
+      strb->texture = screen->resource_create(screen, &template);
+
+      if (!strb->texture) 
+         return FALSE;
+
+      memset(&surf_tmpl, 0, sizeof(surf_tmpl));
+      u_surface_default_template(&surf_tmpl, strb->texture, template.bind);
+      strb->surface = pipe->create_surface(pipe,
+                                           strb->texture,
+                                           &surf_tmpl);
+      if (strb->surface) {
+         assert(strb->surface->texture);
+         assert(strb->surface->format);
+         assert(strb->surface->width == width);
+         assert(strb->surface->height == height);
+      }
+
+      return strb->surface != NULL;
+   }
+}
+
+
+/**
+ * gl_renderbuffer::Delete()
+ */
+static void
+st_renderbuffer_delete(struct gl_renderbuffer *rb)
+{
+   struct st_renderbuffer *strb = st_renderbuffer(rb);
+   ASSERT(strb);
+   pipe_surface_reference(&strb->surface, NULL);
+   pipe_resource_reference(&strb->texture, NULL);
+   pipe_sampler_view_reference(&strb->sampler_view, NULL);
+   free(strb->data);
+   free(strb);
+}
+
+
+/**
+ * gl_renderbuffer::GetPointer()
+ */
+static void *
+null_get_pointer(struct gl_context * ctx, struct gl_renderbuffer *rb,
+                 GLint x, GLint y)
+{
+   /* By returning NULL we force all software rendering to go through
+    * the span routines.
+    */
+#if 0
+   assert(0);  /* Should never get called with softpipe */
+#endif
+   return NULL;
+}
+
+
+/**
+ * Called via ctx->Driver.NewFramebuffer()
+ */
+static struct gl_framebuffer *
+st_new_framebuffer(struct gl_context *ctx, GLuint name)
+{
+   /* XXX not sure we need to subclass gl_framebuffer for pipe */
+   return _mesa_new_framebuffer(ctx, name);
+}
+
+
+/**
+ * Called via ctx->Driver.NewRenderbuffer()
+ */
+static struct gl_renderbuffer *
+st_new_renderbuffer(struct gl_context *ctx, GLuint name)
+{
+   struct st_renderbuffer *strb = ST_CALLOC_STRUCT(st_renderbuffer);
+   if (strb) {
+      _mesa_init_renderbuffer(&strb->Base, name);
+      strb->Base.Delete = st_renderbuffer_delete;
+      strb->Base.AllocStorage = st_renderbuffer_alloc_storage;
+      strb->Base.GetPointer = null_get_pointer;
+      strb->format = PIPE_FORMAT_NONE;
+      return &strb->Base;
+   }
+   return NULL;
+}
+
+
+/**
+ * Allocate a renderbuffer for a an on-screen window (not a user-created
+ * renderbuffer).  The window system code determines the format.
+ */
+struct gl_renderbuffer *
+st_new_renderbuffer_fb(enum pipe_format format, int samples, boolean sw)
+{
+   struct st_renderbuffer *strb;
+
+   strb = ST_CALLOC_STRUCT(st_renderbuffer);
+   if (!strb) {
+      _mesa_error(NULL, GL_OUT_OF_MEMORY, "creating renderbuffer");
+      return NULL;
+   }
+
+   _mesa_init_renderbuffer(&strb->Base, 0);
+   strb->Base.ClassID = 0x4242; /* just a unique value */
+   strb->Base.NumSamples = samples;
+   strb->Base.Format = st_pipe_format_to_mesa_format(format);
+   strb->Base.DataType = st_format_datatype(format);
+   strb->format = format;
+   strb->software = sw;
+   
+   switch (format) {
+   case PIPE_FORMAT_R8G8B8A8_UNORM:
+   case PIPE_FORMAT_B8G8R8A8_UNORM:
+   case PIPE_FORMAT_A8R8G8B8_UNORM:
+   case PIPE_FORMAT_R8G8B8X8_UNORM:
+   case PIPE_FORMAT_B8G8R8X8_UNORM:
+   case PIPE_FORMAT_X8R8G8B8_UNORM:
+   case PIPE_FORMAT_B5G5R5A1_UNORM:
+   case PIPE_FORMAT_B4G4R4A4_UNORM:
+   case PIPE_FORMAT_B5G6R5_UNORM:
+      strb->Base.InternalFormat = GL_RGBA;
+      break;
+   case PIPE_FORMAT_Z16_UNORM:
+      strb->Base.InternalFormat = GL_DEPTH_COMPONENT16;
+      break;
+   case PIPE_FORMAT_Z32_UNORM:
+      strb->Base.InternalFormat = GL_DEPTH_COMPONENT32;
+      break;
+   case PIPE_FORMAT_Z24_UNORM_S8_USCALED:
+   case PIPE_FORMAT_S8_USCALED_Z24_UNORM:
+   case PIPE_FORMAT_Z24X8_UNORM:
+   case PIPE_FORMAT_X8Z24_UNORM:
+      strb->Base.InternalFormat = GL_DEPTH24_STENCIL8_EXT;
+      break;
+   case PIPE_FORMAT_S8_USCALED:
+      strb->Base.InternalFormat = GL_STENCIL_INDEX8_EXT;
+      break;
+   case PIPE_FORMAT_R16G16B16A16_SNORM:
+      strb->Base.InternalFormat = GL_RGBA16;
+      break;
+   case PIPE_FORMAT_R8_UNORM:
+      strb->Base.InternalFormat = GL_R8;
+      break;
+   case PIPE_FORMAT_R8G8_UNORM:
+      strb->Base.InternalFormat = GL_RG8;
+      break;
+   case PIPE_FORMAT_R16_UNORM:
+      strb->Base.InternalFormat = GL_R16;
+      break;
+   case PIPE_FORMAT_R16G16_UNORM:
+      strb->Base.InternalFormat = GL_RG16;
+      break;
+   default:
+      _mesa_problem(NULL,
+		    "Unexpected format in st_new_renderbuffer_fb");
+      free(strb);
+      return NULL;
+   }
+
+   /* st-specific methods */
+   strb->Base.Delete = st_renderbuffer_delete;
+   strb->Base.AllocStorage = st_renderbuffer_alloc_storage;
+   strb->Base.GetPointer = null_get_pointer;
+
+   /* surface is allocated in st_renderbuffer_alloc_storage() */
+   strb->surface = NULL;
+
+   return &strb->Base;
+}
+
+
+
+
+/**
+ * Called via ctx->Driver.BindFramebufferEXT().
+ */
+static void
+st_bind_framebuffer(struct gl_context *ctx, GLenum target,
+                    struct gl_framebuffer *fb, struct gl_framebuffer *fbread)
+{
+
+}
+
+/**
+ * Called by ctx->Driver.FramebufferRenderbuffer
+ */
+static void
+st_framebuffer_renderbuffer(struct gl_context *ctx, 
+                            struct gl_framebuffer *fb,
+                            GLenum attachment,
+                            struct gl_renderbuffer *rb)
+{
+   /* XXX no need for derivation? */
+   _mesa_framebuffer_renderbuffer(ctx, fb, attachment, rb);
+}
+
+
+/**
+ * Called by ctx->Driver.RenderTexture
+ */
+static void
+st_render_texture(struct gl_context *ctx,
+                  struct gl_framebuffer *fb,
+                  struct gl_renderbuffer_attachment *att)
+{
+   struct st_context *st = st_context(ctx);
+   struct pipe_context *pipe = st->pipe;
+   struct st_renderbuffer *strb;
+   struct gl_renderbuffer *rb;
+   struct pipe_resource *pt = st_get_texobj_resource(att->Texture);
+   struct st_texture_object *stObj;
+   const struct gl_texture_image *texImage;
+   struct pipe_surface surf_tmpl;
+
+   /* When would this fail?  Perhaps assert? */
+   if (!pt) 
+      return;
+
+   /* get pointer to texture image we're rendeing to */
+   texImage = att->Texture->Image[att->CubeMapFace][att->TextureLevel];
+
+   /* create new renderbuffer which wraps the texture image */
+   rb = st_new_renderbuffer(ctx, 0);
+   if (!rb) {
+      _mesa_error(ctx, GL_OUT_OF_MEMORY, "glFramebufferTexture()");
+      return;
+   }
+
+   _mesa_reference_renderbuffer(&att->Renderbuffer, rb);
+   assert(rb->RefCount == 1);
+   rb->AllocStorage = NULL; /* should not get called */
+   strb = st_renderbuffer(rb);
+
+   assert(strb->Base.RefCount > 0);
+
+   /* get the texture for the texture object */
+   stObj = st_texture_object(att->Texture);
+
+   /* point renderbuffer at texobject */
+   strb->rtt = stObj;
+   strb->rtt_level = att->TextureLevel;
+   strb->rtt_face = att->CubeMapFace;
+   strb->rtt_slice = att->Zoffset;
+
+   rb->Width = texImage->Width2;
+   rb->Height = texImage->Height2;
+   rb->_BaseFormat = texImage->_BaseFormat;
+   /*printf("***** render to texture level %d: %d x %d\n", att->TextureLevel, rb->Width, rb->Height);*/
+
+   /*printf("***** pipe texture %d x %d\n", pt->width0, pt->height0);*/
+
+   pipe_resource_reference( &strb->texture, pt );
+
+   pipe_surface_reference(&strb->surface, NULL);
+
+   pipe_sampler_view_reference(&strb->sampler_view,
+                               st_get_texture_sampler_view(stObj, pipe));
+
+   assert(strb->rtt_level <= strb->texture->last_level);
+
+   /* new surface for rendering into the texture */
+   memset(&surf_tmpl, 0, sizeof(surf_tmpl));
+   surf_tmpl.format = ctx->Color.sRGBEnabled ? strb->texture->format : util_format_linear(strb->texture->format);
+   surf_tmpl.usage = PIPE_BIND_RENDER_TARGET;
+   surf_tmpl.u.tex.level = strb->rtt_level;
+   surf_tmpl.u.tex.first_layer = strb->rtt_face + strb->rtt_slice;
+   surf_tmpl.u.tex.last_layer = strb->rtt_face + strb->rtt_slice;
+   strb->surface = pipe->create_surface(pipe,
+                                        strb->texture,
+                                        &surf_tmpl);
+
+   strb->format = pt->format;
+
+   strb->Base.Format = st_pipe_format_to_mesa_format(pt->format);
+   strb->Base.DataType = st_format_datatype(pt->format);
+
+   /*
+   printf("RENDER TO TEXTURE obj=%p pt=%p surf=%p  %d x %d\n",
+          att->Texture, pt, strb->surface, rb->Width, rb->Height);
+   */
+
+   /* Invalidate buffer state so that the pipe's framebuffer state
+    * gets updated.
+    * That's where the new renderbuffer (which we just created) gets
+    * passed to the pipe as a (color/depth) render target.
+    */
+   st_invalidate_state(ctx, _NEW_BUFFERS);
+}
+
+
+/**
+ * Called via ctx->Driver.FinishRenderTexture.
+ */
+static void
+st_finish_render_texture(struct gl_context *ctx,
+                         struct gl_renderbuffer_attachment *att)
+{
+   struct st_context *st = st_context(ctx);
+   struct st_renderbuffer *strb = st_renderbuffer(att->Renderbuffer);
+
+   if (!strb)
+      return;
+
+   st_flush(st, PIPE_FLUSH_RENDER_CACHE, NULL);
+
+   strb->rtt = NULL;
+
+   /*
+   printf("FINISH RENDER TO TEXTURE surf=%p\n", strb->surface);
+   */
+
+   /* restore previous framebuffer state */
+   st_invalidate_state(ctx, _NEW_BUFFERS);
+}
+
+
+/**
+ * Validate a renderbuffer attachment for a particular set of bindings.
+ */
+static GLboolean
+st_validate_attachment(struct pipe_screen *screen,
+		       const struct gl_renderbuffer_attachment *att,
+		       unsigned bindings)
+{
+   const struct st_texture_object *stObj = st_texture_object(att->Texture);
+
+   /* Only validate texture attachments for now, since
+    * st_renderbuffer_alloc_storage makes sure that
+    * the format is supported.
+    */
+   if (att->Type != GL_TEXTURE)
+      return GL_TRUE;
+
+   if (!stObj)
+      return GL_FALSE;
+
+   return screen->is_format_supported(screen, stObj->pt->format,
+                                      PIPE_TEXTURE_2D,
+                                      stObj->pt->nr_samples, bindings, 0);
+}
+
+
+/**
+ * Check if two renderbuffer attachments name a combined depth/stencil
+ * renderbuffer.
+ */
+GLboolean
+st_is_depth_stencil_combined(const struct gl_renderbuffer_attachment *depth,
+                             const struct gl_renderbuffer_attachment *stencil)
+{
+   assert(depth && stencil);
+
+   if (depth->Type == stencil->Type) {
+      if (depth->Type == GL_RENDERBUFFER_EXT &&
+          depth->Renderbuffer == stencil->Renderbuffer)
+         return GL_TRUE;
+
+      if (depth->Type == GL_TEXTURE &&
+          depth->Texture == stencil->Texture)
+         return GL_TRUE;
+   }
+
+   return GL_FALSE;
+}
+ 
+
+/**
+ * Check that the framebuffer configuration is valid in terms of what
+ * the driver can support.
+ *
+ * For Gallium we only supports combined Z+stencil, not separate buffers.
+ */
+static void
+st_validate_framebuffer(struct gl_context *ctx, struct gl_framebuffer *fb)
+{
+   struct st_context *st = st_context(ctx);
+   struct pipe_screen *screen = st->pipe->screen;
+   const struct gl_renderbuffer_attachment *depth =
+         &fb->Attachment[BUFFER_DEPTH];
+   const struct gl_renderbuffer_attachment *stencil =
+         &fb->Attachment[BUFFER_STENCIL];
+   GLuint i;
+
+   if (depth->Type && stencil->Type && depth->Type != stencil->Type) {
+      fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED_EXT;
+      return;
+   }
+   if (depth->Type == GL_RENDERBUFFER_EXT &&
+       stencil->Type == GL_RENDERBUFFER_EXT &&
+       depth->Renderbuffer != stencil->Renderbuffer) {
+      fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED_EXT;
+      return;
+   }
+   if (depth->Type == GL_TEXTURE &&
+       stencil->Type == GL_TEXTURE &&
+       depth->Texture != stencil->Texture) {
+      fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED_EXT;
+      return;
+   }
+
+   if (!st_validate_attachment(screen,
+                               depth,
+			       PIPE_BIND_DEPTH_STENCIL)) {
+      fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED_EXT;
+      return;
+   }
+   if (!st_validate_attachment(screen,
+                               stencil,
+			       PIPE_BIND_DEPTH_STENCIL)) {
+      fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED_EXT;
+      return;
+   }
+   for (i = 0; i < ctx->Const.MaxColorAttachments; i++) {
+      if (!st_validate_attachment(screen,
+				  &fb->Attachment[BUFFER_COLOR0 + i],
+				  PIPE_BIND_RENDER_TARGET)) {
+	 fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED_EXT;
+	 return;
+      }
+   }
+}
+
+
+/**
+ * Called via glDrawBuffer.
+ */
+static void
+st_DrawBuffers(struct gl_context *ctx, GLsizei count, const GLenum *buffers)
+{
+   struct st_context *st = st_context(ctx);
+   struct gl_framebuffer *fb = ctx->DrawBuffer;
+   GLuint i;
+
+   (void) count;
+   (void) buffers;
+
+   /* add the renderbuffers on demand */
+   for (i = 0; i < fb->_NumColorDrawBuffers; i++) {
+      gl_buffer_index idx = fb->_ColorDrawBufferIndexes[i];
+      st_manager_add_color_renderbuffer(st, fb, idx);
+   }
+}
+
+
+/**
+ * Called via glReadBuffer.
+ */
+static void
+st_ReadBuffer(struct gl_context *ctx, GLenum buffer)
+{
+   struct st_context *st = st_context(ctx);
+   struct gl_framebuffer *fb = ctx->ReadBuffer;
+
+   (void) buffer;
+
+   /* add the renderbuffer on demand */
+   st_manager_add_color_renderbuffer(st, fb, fb->_ColorReadBufferIndex);
+}
+
+
+void st_init_fbo_functions(struct dd_function_table *functions)
+{
+#if FEATURE_EXT_framebuffer_object
+   functions->NewFramebuffer = st_new_framebuffer;
+   functions->NewRenderbuffer = st_new_renderbuffer;
+   functions->BindFramebuffer = st_bind_framebuffer;
+   functions->FramebufferRenderbuffer = st_framebuffer_renderbuffer;
+   functions->RenderTexture = st_render_texture;
+   functions->FinishRenderTexture = st_finish_render_texture;
+   functions->ValidateFramebuffer = st_validate_framebuffer;
+#endif
+   /* no longer needed by core Mesa, drivers handle resizes...
+   functions->ResizeBuffers = st_resize_buffers;
+   */
+
+   functions->DrawBuffers = st_DrawBuffers;
+   functions->ReadBuffer = st_ReadBuffer;
+}
+
+/* XXX unused ? */
+struct pipe_sampler_view *
+st_get_renderbuffer_sampler_view(struct st_renderbuffer *rb,
+                                 struct pipe_context *pipe)
+{
+   if (!rb->sampler_view) {
+      rb->sampler_view = st_create_texture_sampler_view(pipe, rb->texture);
+   }
+
+   return rb->sampler_view;
+}
diff --git a/mesalib/src/mesa/state_tracker/st_draw_feedback.c b/mesalib/src/mesa/state_tracker/st_draw_feedback.c
index c11c7696e..545b32d75 100644
--- a/mesalib/src/mesa/state_tracker/st_draw_feedback.c
+++ b/mesalib/src/mesa/state_tracker/st_draw_feedback.c
@@ -220,7 +220,7 @@ st_feedback_draw_vbo(struct gl_context *ctx,
          break;
       default:
          assert(0);
-	 return;
+	 goto out_unref_vertex;
       }
 
       if (bufobj && bufobj->Name) {
@@ -256,15 +256,6 @@ st_feedback_draw_vbo(struct gl_context *ctx,
    /*
     * unmap vertex/index buffers
     */
-   for (i = 0; i < PIPE_MAX_ATTRIBS; i++) {
-      if (draw->pt.vertex_buffer[i].buffer) {
-         pipe_buffer_unmap(pipe, vb_transfer[i]);
-         pipe_resource_reference(&draw->pt.vertex_buffer[i].buffer, NULL);
-         draw_set_mapped_vertex_buffer(draw, i, NULL);
-         pipe_resource_reference(&vbuffers[i].buffer, NULL);
-      }
-   }
-
    if (ib) {
       draw_set_mapped_index_buffer(draw, NULL);
       draw_set_index_buffer(draw, NULL);
@@ -273,6 +264,14 @@ st_feedback_draw_vbo(struct gl_context *ctx,
          pipe_buffer_unmap(pipe, ib_transfer);
       pipe_resource_reference(&ibuffer.buffer, NULL);
    }
+
+ out_unref_vertex:
+   for (attr = 0; attr < vp->num_inputs; attr++) {
+      pipe_buffer_unmap(pipe, vb_transfer[attr]);
+      draw_set_mapped_vertex_buffer(draw, attr, NULL);
+      pipe_resource_reference(&vbuffers[attr].buffer, NULL);
+   }
+   draw_set_vertex_buffers(draw, 0, NULL);
 }
 
 #endif /* FEATURE_feedback || FEATURE_rastpos */
diff --git a/mesalib/src/mesa/state_tracker/st_extensions.c b/mesalib/src/mesa/state_tracker/st_extensions.c
index a81cbe85d..d600edc48 100644
--- a/mesalib/src/mesa/state_tracker/st_extensions.c
+++ b/mesalib/src/mesa/state_tracker/st_extensions.c
@@ -390,6 +390,15 @@ void st_init_extensions(struct st_context *st)
                                    PIPE_BIND_SAMPLER_VIEW, 0)) {
       ctx->Extensions.EXT_texture_sRGB = GL_TRUE;
       ctx->Extensions.EXT_texture_sRGB_decode = GL_TRUE;
+      if (screen->is_format_supported(screen, PIPE_FORMAT_A8B8G8R8_SRGB,
+                                   PIPE_TEXTURE_2D, 0,
+                                   PIPE_BIND_RENDER_TARGET, 0) ||
+          screen->is_format_supported(screen, PIPE_FORMAT_B8G8R8A8_SRGB,
+                                   PIPE_TEXTURE_2D, 0,
+                                   PIPE_BIND_RENDER_TARGET, 0)) {
+         ctx->Extensions.EXT_framebuffer_sRGB = GL_TRUE;
+         ctx->Const.sRGBCapable = GL_TRUE;
+      }
    }
 
    if (screen->is_format_supported(screen, PIPE_FORMAT_R8G8_UNORM,