svn merge ^/branches/released .

1 files changed, 390 insertions, 390 deletions

diff --git a/mesalib/src/mesa/main/shared.c b/mesalib/src/mesa/main/shared.c
index a56c70fa7..bfbddaaa0 100644
--- a/mesalib/src/mesa/main/shared.c
+++ b/mesalib/src/mesa/main/shared.c
@@ -1,390 +1,390 @@
-/*
- * Mesa 3-D graphics library
- * Version:  7.5
- *
- * Copyright (C) 2009  VMware, Inc.  All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
- * 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 shared.c
- * Shared-context state
- */
-
-
-
-#include "imports.h"
-#include "mtypes.h"
-#include "hash.h"
-#if FEATURE_ATI_fragment_shader
-#include "atifragshader.h"
-#endif
-#include "bufferobj.h"
-#include "shared.h"
-#include "program/program.h"
-#include "dlist.h"
-#include "shaderobj.h"
-#include "syncobj.h"
-
-/**
- * Allocate and initialize a shared context state structure.
- * Initializes the display list, texture objects and vertex programs hash
- * tables, allocates the texture objects. If it runs out of memory, frees
- * everything already allocated before returning NULL.
- *
- * \return pointer to a gl_shared_state structure on success, or NULL on
- * failure.
- */
-struct gl_shared_state *
-_mesa_alloc_shared_state(GLcontext *ctx)
-{
-   struct gl_shared_state *shared;
-   GLuint i;
-
-   shared = CALLOC_STRUCT(gl_shared_state);
-   if (!shared)
-      return NULL;
-
-   _glthread_INIT_MUTEX(shared->Mutex);
-
-   shared->DisplayList = _mesa_NewHashTable();
-   shared->TexObjects = _mesa_NewHashTable();
-   shared->Programs = _mesa_NewHashTable();
-
-#if FEATURE_ARB_vertex_program
-   shared->DefaultVertexProgram = (struct gl_vertex_program *)
-      ctx->Driver.NewProgram(ctx, GL_VERTEX_PROGRAM_ARB, 0);
-#endif
-
-#if FEATURE_ARB_fragment_program
-   shared->DefaultFragmentProgram = (struct gl_fragment_program *)
-      ctx->Driver.NewProgram(ctx, GL_FRAGMENT_PROGRAM_ARB, 0);
-#endif
-
-#if FEATURE_ATI_fragment_shader
-   shared->ATIShaders = _mesa_NewHashTable();
-   shared->DefaultFragmentShader = _mesa_new_ati_fragment_shader(ctx, 0);
-#endif
-
-#if FEATURE_ARB_shader_objects
-   shared->ShaderObjects = _mesa_NewHashTable();
-#endif
-
-#if FEATURE_ARB_vertex_buffer_object || FEATURE_ARB_pixel_buffer_object
-   shared->BufferObjects = _mesa_NewHashTable();
-#endif
-
-   /* Allocate the default buffer object */
-   shared->NullBufferObj = ctx->Driver.NewBufferObject(ctx, 0, 0);
-
-   /* Create default texture objects */
-   for (i = 0; i < NUM_TEXTURE_TARGETS; i++) {
-      /* NOTE: the order of these enums matches the TEXTURE_x_INDEX values */
-      static const GLenum targets[NUM_TEXTURE_TARGETS] = {
-         GL_TEXTURE_2D_ARRAY_EXT,
-         GL_TEXTURE_1D_ARRAY_EXT,
-         GL_TEXTURE_CUBE_MAP,
-         GL_TEXTURE_3D,
-         GL_TEXTURE_RECTANGLE_NV,
-         GL_TEXTURE_2D,
-         GL_TEXTURE_1D
-      };
-      shared->DefaultTex[i] = ctx->Driver.NewTextureObject(ctx, 0, targets[i]);
-   }
-
-   /* sanity check */
-   assert(shared->DefaultTex[TEXTURE_1D_INDEX]->RefCount == 1);
-
-   /* Mutex and timestamp for texobj state validation */
-   _glthread_INIT_MUTEX(shared->TexMutex);
-   shared->TextureStateStamp = 0;
-
-#if FEATURE_EXT_framebuffer_object
-   shared->FrameBuffers = _mesa_NewHashTable();
-   shared->RenderBuffers = _mesa_NewHashTable();
-#endif
-
-   make_empty_list(& shared->SyncObjects);
-
-   return shared;
-}
-
-
-/**
- * Callback for deleting a display list.  Called by _mesa_HashDeleteAll().
- */
-static void
-delete_displaylist_cb(GLuint id, void *data, void *userData)
-{
-   struct gl_display_list *list = (struct gl_display_list *) data;
-   GLcontext *ctx = (GLcontext *) userData;
-   _mesa_delete_list(ctx, list);
-}
-
-
-/**
- * Callback for deleting a texture object.  Called by _mesa_HashDeleteAll().
- */
-static void
-delete_texture_cb(GLuint id, void *data, void *userData)
-{
-   struct gl_texture_object *texObj = (struct gl_texture_object *) data;
-   GLcontext *ctx = (GLcontext *) userData;
-   ctx->Driver.DeleteTexture(ctx, texObj);
-}
-
-
-/**
- * Callback for deleting a program object.  Called by _mesa_HashDeleteAll().
- */
-static void
-delete_program_cb(GLuint id, void *data, void *userData)
-{
-   struct gl_program *prog = (struct gl_program *) data;
-   GLcontext *ctx = (GLcontext *) userData;
-   if(prog != &_mesa_DummyProgram) {
-      ASSERT(prog->RefCount == 1); /* should only be referenced by hash table */
-      prog->RefCount = 0;  /* now going away */
-      ctx->Driver.DeleteProgram(ctx, prog);
-   }
-}
-
-
-#if FEATURE_ATI_fragment_shader
-/**
- * Callback for deleting an ATI fragment shader object.
- * Called by _mesa_HashDeleteAll().
- */
-static void
-delete_fragshader_cb(GLuint id, void *data, void *userData)
-{
-   struct ati_fragment_shader *shader = (struct ati_fragment_shader *) data;
-   GLcontext *ctx = (GLcontext *) userData;
-   _mesa_delete_ati_fragment_shader(ctx, shader);
-}
-#endif
-
-
-/**
- * Callback for deleting a buffer object.  Called by _mesa_HashDeleteAll().
- */
-static void
-delete_bufferobj_cb(GLuint id, void *data, void *userData)
-{
-   struct gl_buffer_object *bufObj = (struct gl_buffer_object *) data;
-   GLcontext *ctx = (GLcontext *) userData;
-   if (_mesa_bufferobj_mapped(bufObj)) {
-      ctx->Driver.UnmapBuffer(ctx, 0, bufObj);
-      bufObj->Pointer = NULL;
-   }
-   _mesa_reference_buffer_object(ctx, &bufObj, NULL);
-}
-
-
-/**
- * Callback for freeing shader program data. Call it before delete_shader_cb
- * to avoid memory access error.
- */
-static void
-free_shader_program_data_cb(GLuint id, void *data, void *userData)
-{
-   GLcontext *ctx = (GLcontext *) userData;
-   struct gl_shader_program *shProg = (struct gl_shader_program *) data;
-
-   if (shProg->Type == GL_SHADER_PROGRAM_MESA) {
-       _mesa_free_shader_program_data(ctx, shProg);
-   }
-}
-
-
-/**
- * Callback for deleting shader and shader programs objects.
- * Called by _mesa_HashDeleteAll().
- */
-static void
-delete_shader_cb(GLuint id, void *data, void *userData)
-{
-   GLcontext *ctx = (GLcontext *) userData;
-   struct gl_shader *sh = (struct gl_shader *) data;
-   if (sh->Type == GL_FRAGMENT_SHADER || sh->Type == GL_VERTEX_SHADER) {
-      ctx->Driver.DeleteShader(ctx, sh);
-   }
-   else {
-      struct gl_shader_program *shProg = (struct gl_shader_program *) data;
-      ASSERT(shProg->Type == GL_SHADER_PROGRAM_MESA);
-      ctx->Driver.DeleteShaderProgram(ctx, shProg);
-   }
-}
-
-
-/**
- * Callback for deleting a framebuffer object.  Called by _mesa_HashDeleteAll()
- */
-static void
-delete_framebuffer_cb(GLuint id, void *data, void *userData)
-{
-   struct gl_framebuffer *fb = (struct gl_framebuffer *) data;
-   /* The fact that the framebuffer is in the hashtable means its refcount
-    * is one, but we're removing from the hashtable now.  So clear refcount.
-    */
-   /*assert(fb->RefCount == 1);*/
-   fb->RefCount = 0;
-
-   /* NOTE: Delete should always be defined but there are two reports
-    * of it being NULL (bugs 13507, 14293).  Work-around for now.
-    */
-   if (fb->Delete)
-      fb->Delete(fb);
-}
-
-
-/**
- * Callback for deleting a renderbuffer object. Called by _mesa_HashDeleteAll()
- */
-static void
-delete_renderbuffer_cb(GLuint id, void *data, void *userData)
-{
-   struct gl_renderbuffer *rb = (struct gl_renderbuffer *) data;
-   rb->RefCount = 0;  /* see comment for FBOs above */
-   if (rb->Delete)
-      rb->Delete(rb);
-}
-
-
-/**
- * Deallocate a shared state object and all children structures.
- *
- * \param ctx GL context.
- * \param shared shared state pointer.
- * 
- * Frees the display lists, the texture objects (calling the driver texture
- * deletion callback to free its private data) and the vertex programs, as well
- * as their hash tables.
- *
- * \sa alloc_shared_state().
- */
-static void
-free_shared_state(GLcontext *ctx, struct gl_shared_state *shared)
-{
-   GLuint i;
-
-   /* Free the dummy/fallback texture object */
-   if (shared->FallbackTex)
-      ctx->Driver.DeleteTexture(ctx, shared->FallbackTex);
-
-   /*
-    * Free display lists
-    */
-   _mesa_HashDeleteAll(shared->DisplayList, delete_displaylist_cb, ctx);
-   _mesa_DeleteHashTable(shared->DisplayList);
-
-#if FEATURE_ARB_shader_objects
-   _mesa_HashWalk(shared->ShaderObjects, free_shader_program_data_cb, ctx);
-   _mesa_HashDeleteAll(shared->ShaderObjects, delete_shader_cb, ctx);
-   _mesa_DeleteHashTable(shared->ShaderObjects);
-#endif
-
-   _mesa_HashDeleteAll(shared->Programs, delete_program_cb, ctx);
-   _mesa_DeleteHashTable(shared->Programs);
-
-#if FEATURE_ARB_vertex_program
-   _mesa_reference_vertprog(ctx, &shared->DefaultVertexProgram, NULL);
-#endif
-
-#if FEATURE_ARB_fragment_program
-   _mesa_reference_fragprog(ctx, &shared->DefaultFragmentProgram, NULL);
-#endif
-
-#if FEATURE_ATI_fragment_shader
-   _mesa_HashDeleteAll(shared->ATIShaders, delete_fragshader_cb, ctx);
-   _mesa_DeleteHashTable(shared->ATIShaders);
-   _mesa_delete_ati_fragment_shader(ctx, shared->DefaultFragmentShader);
-#endif
-
-#if FEATURE_ARB_vertex_buffer_object || FEATURE_ARB_pixel_buffer_object
-   _mesa_HashDeleteAll(shared->BufferObjects, delete_bufferobj_cb, ctx);
-   _mesa_DeleteHashTable(shared->BufferObjects);
-#endif
-
-#if FEATURE_EXT_framebuffer_object
-   _mesa_HashDeleteAll(shared->FrameBuffers, delete_framebuffer_cb, ctx);
-   _mesa_DeleteHashTable(shared->FrameBuffers);
-   _mesa_HashDeleteAll(shared->RenderBuffers, delete_renderbuffer_cb, ctx);
-   _mesa_DeleteHashTable(shared->RenderBuffers);
-#endif
-
-#if FEATURE_ARB_vertex_buffer_object
-   _mesa_reference_buffer_object(ctx, &shared->NullBufferObj, NULL);
-#endif
-
-   {
-      struct simple_node *node;
-      struct simple_node *temp;
-
-      foreach_s(node, temp, & shared->SyncObjects) {
-	 _mesa_unref_sync_object(ctx, (struct gl_sync_object *) node);
-      }
-   }
-
-   /*
-    * Free texture objects (after FBOs since some textures might have
-    * been bound to FBOs).
-    */
-   ASSERT(ctx->Driver.DeleteTexture);
-   /* the default textures */
-   for (i = 0; i < NUM_TEXTURE_TARGETS; i++) {
-      ctx->Driver.DeleteTexture(ctx, shared->DefaultTex[i]);
-   }
-
-   /* all other textures */
-   _mesa_HashDeleteAll(shared->TexObjects, delete_texture_cb, ctx);
-   _mesa_DeleteHashTable(shared->TexObjects);
-
-   _glthread_DESTROY_MUTEX(shared->Mutex);
-   _glthread_DESTROY_MUTEX(shared->TexMutex);
-
-   free(shared);
-}
-
-
-/**
- * Decrement shared state object reference count and potentially free it
- * and all children structures.
- *
- * \param ctx GL context.
- * \param shared shared state pointer.
- *
- * \sa free_shared_state().
- */
-void
-_mesa_release_shared_state(GLcontext *ctx, struct gl_shared_state *shared)
-{
-   GLint RefCount;
-
-   _glthread_LOCK_MUTEX(shared->Mutex);
-   RefCount = --shared->RefCount;
-   _glthread_UNLOCK_MUTEX(shared->Mutex);
-
-   assert(RefCount >= 0);
-
-   if (RefCount == 0) {
-      /* free shared state */
-      free_shared_state( ctx, shared );
-   }
-}
+/*

+ * Mesa 3-D graphics library

+ * Version:  7.5

+ *

+ * Copyright (C) 2009  VMware, Inc.  All Rights Reserved.

+ *

+ * Permission is hereby granted, free of charge, to any person obtaining a

+ * copy of this software and associated documentation files (the "Software"),

+ * to deal in the Software without restriction, including without limitation

+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,

+ * and/or sell copies of the Software, and to permit persons to whom the

+ * Software is furnished to do so, subject to the following conditions:

+ *

+ * The above copyright notice and this permission notice shall be included

+ * in all copies or substantial portions of the Software.

+ *

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

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

+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL

+ * 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 shared.c

+ * Shared-context state

+ */

+

+

+

+#include "imports.h"

+#include "mtypes.h"

+#include "hash.h"

+#if FEATURE_ATI_fragment_shader

+#include "atifragshader.h"

+#endif

+#include "bufferobj.h"

+#include "shared.h"

+#include "program/program.h"

+#include "dlist.h"

+#include "shaderobj.h"

+#include "syncobj.h"

+

+/**

+ * Allocate and initialize a shared context state structure.

+ * Initializes the display list, texture objects and vertex programs hash

+ * tables, allocates the texture objects. If it runs out of memory, frees

+ * everything already allocated before returning NULL.

+ *

+ * \return pointer to a gl_shared_state structure on success, or NULL on

+ * failure.

+ */

+struct gl_shared_state *

+_mesa_alloc_shared_state(struct gl_context *ctx)

+{

+   struct gl_shared_state *shared;

+   GLuint i;

+

+   shared = CALLOC_STRUCT(gl_shared_state);

+   if (!shared)

+      return NULL;

+

+   _glthread_INIT_MUTEX(shared->Mutex);

+

+   shared->DisplayList = _mesa_NewHashTable();

+   shared->TexObjects = _mesa_NewHashTable();

+   shared->Programs = _mesa_NewHashTable();

+

+#if FEATURE_ARB_vertex_program

+   shared->DefaultVertexProgram = (struct gl_vertex_program *)

+      ctx->Driver.NewProgram(ctx, GL_VERTEX_PROGRAM_ARB, 0);

+#endif

+

+#if FEATURE_ARB_fragment_program

+   shared->DefaultFragmentProgram = (struct gl_fragment_program *)

+      ctx->Driver.NewProgram(ctx, GL_FRAGMENT_PROGRAM_ARB, 0);

+#endif

+

+#if FEATURE_ATI_fragment_shader

+   shared->ATIShaders = _mesa_NewHashTable();

+   shared->DefaultFragmentShader = _mesa_new_ati_fragment_shader(ctx, 0);

+#endif

+

+#if FEATURE_ARB_shader_objects

+   shared->ShaderObjects = _mesa_NewHashTable();

+#endif

+

+#if FEATURE_ARB_vertex_buffer_object || FEATURE_ARB_pixel_buffer_object

+   shared->BufferObjects = _mesa_NewHashTable();

+#endif

+

+   /* Allocate the default buffer object */

+   shared->NullBufferObj = ctx->Driver.NewBufferObject(ctx, 0, 0);

+

+   /* Create default texture objects */

+   for (i = 0; i < NUM_TEXTURE_TARGETS; i++) {

+      /* NOTE: the order of these enums matches the TEXTURE_x_INDEX values */

+      static const GLenum targets[NUM_TEXTURE_TARGETS] = {

+         GL_TEXTURE_2D_ARRAY_EXT,

+         GL_TEXTURE_1D_ARRAY_EXT,

+         GL_TEXTURE_CUBE_MAP,

+         GL_TEXTURE_3D,

+         GL_TEXTURE_RECTANGLE_NV,

+         GL_TEXTURE_2D,

+         GL_TEXTURE_1D

+      };

+      shared->DefaultTex[i] = ctx->Driver.NewTextureObject(ctx, 0, targets[i]);

+   }

+

+   /* sanity check */

+   assert(shared->DefaultTex[TEXTURE_1D_INDEX]->RefCount == 1);

+

+   /* Mutex and timestamp for texobj state validation */

+   _glthread_INIT_MUTEX(shared->TexMutex);

+   shared->TextureStateStamp = 0;

+

+#if FEATURE_EXT_framebuffer_object

+   shared->FrameBuffers = _mesa_NewHashTable();

+   shared->RenderBuffers = _mesa_NewHashTable();

+#endif

+

+   make_empty_list(& shared->SyncObjects);

+

+   return shared;

+}

+

+

+/**

+ * Callback for deleting a display list.  Called by _mesa_HashDeleteAll().

+ */

+static void

+delete_displaylist_cb(GLuint id, void *data, void *userData)

+{

+   struct gl_display_list *list = (struct gl_display_list *) data;

+   struct gl_context *ctx = (struct gl_context *) userData;

+   _mesa_delete_list(ctx, list);

+}

+

+

+/**

+ * Callback for deleting a texture object.  Called by _mesa_HashDeleteAll().

+ */

+static void

+delete_texture_cb(GLuint id, void *data, void *userData)

+{

+   struct gl_texture_object *texObj = (struct gl_texture_object *) data;

+   struct gl_context *ctx = (struct gl_context *) userData;

+   ctx->Driver.DeleteTexture(ctx, texObj);

+}

+

+

+/**

+ * Callback for deleting a program object.  Called by _mesa_HashDeleteAll().

+ */

+static void

+delete_program_cb(GLuint id, void *data, void *userData)

+{

+   struct gl_program *prog = (struct gl_program *) data;

+   struct gl_context *ctx = (struct gl_context *) userData;

+   if(prog != &_mesa_DummyProgram) {

+      ASSERT(prog->RefCount == 1); /* should only be referenced by hash table */

+      prog->RefCount = 0;  /* now going away */

+      ctx->Driver.DeleteProgram(ctx, prog);

+   }

+}

+

+

+#if FEATURE_ATI_fragment_shader

+/**

+ * Callback for deleting an ATI fragment shader object.

+ * Called by _mesa_HashDeleteAll().

+ */

+static void

+delete_fragshader_cb(GLuint id, void *data, void *userData)

+{

+   struct ati_fragment_shader *shader = (struct ati_fragment_shader *) data;

+   struct gl_context *ctx = (struct gl_context *) userData;

+   _mesa_delete_ati_fragment_shader(ctx, shader);

+}

+#endif

+

+

+/**

+ * Callback for deleting a buffer object.  Called by _mesa_HashDeleteAll().

+ */

+static void

+delete_bufferobj_cb(GLuint id, void *data, void *userData)

+{

+   struct gl_buffer_object *bufObj = (struct gl_buffer_object *) data;

+   struct gl_context *ctx = (struct gl_context *) userData;

+   if (_mesa_bufferobj_mapped(bufObj)) {

+      ctx->Driver.UnmapBuffer(ctx, 0, bufObj);

+      bufObj->Pointer = NULL;

+   }

+   _mesa_reference_buffer_object(ctx, &bufObj, NULL);

+}

+

+

+/**

+ * Callback for freeing shader program data. Call it before delete_shader_cb

+ * to avoid memory access error.

+ */

+static void

+free_shader_program_data_cb(GLuint id, void *data, void *userData)

+{

+   struct gl_context *ctx = (struct gl_context *) userData;

+   struct gl_shader_program *shProg = (struct gl_shader_program *) data;

+

+   if (shProg->Type == GL_SHADER_PROGRAM_MESA) {

+       _mesa_free_shader_program_data(ctx, shProg);

+   }

+}

+

+

+/**

+ * Callback for deleting shader and shader programs objects.

+ * Called by _mesa_HashDeleteAll().

+ */

+static void

+delete_shader_cb(GLuint id, void *data, void *userData)

+{

+   struct gl_context *ctx = (struct gl_context *) userData;

+   struct gl_shader *sh = (struct gl_shader *) data;

+   if (sh->Type == GL_FRAGMENT_SHADER || sh->Type == GL_VERTEX_SHADER) {

+      ctx->Driver.DeleteShader(ctx, sh);

+   }

+   else {

+      struct gl_shader_program *shProg = (struct gl_shader_program *) data;

+      ASSERT(shProg->Type == GL_SHADER_PROGRAM_MESA);

+      ctx->Driver.DeleteShaderProgram(ctx, shProg);

+   }

+}

+

+

+/**

+ * Callback for deleting a framebuffer object.  Called by _mesa_HashDeleteAll()

+ */

+static void

+delete_framebuffer_cb(GLuint id, void *data, void *userData)

+{

+   struct gl_framebuffer *fb = (struct gl_framebuffer *) data;

+   /* The fact that the framebuffer is in the hashtable means its refcount

+    * is one, but we're removing from the hashtable now.  So clear refcount.

+    */

+   /*assert(fb->RefCount == 1);*/

+   fb->RefCount = 0;

+

+   /* NOTE: Delete should always be defined but there are two reports

+    * of it being NULL (bugs 13507, 14293).  Work-around for now.

+    */

+   if (fb->Delete)

+      fb->Delete(fb);

+}

+

+

+/**

+ * Callback for deleting a renderbuffer object. Called by _mesa_HashDeleteAll()

+ */

+static void

+delete_renderbuffer_cb(GLuint id, void *data, void *userData)

+{

+   struct gl_renderbuffer *rb = (struct gl_renderbuffer *) data;

+   rb->RefCount = 0;  /* see comment for FBOs above */

+   if (rb->Delete)

+      rb->Delete(rb);

+}

+

+

+/**

+ * Deallocate a shared state object and all children structures.

+ *

+ * \param ctx GL context.

+ * \param shared shared state pointer.

+ * 

+ * Frees the display lists, the texture objects (calling the driver texture

+ * deletion callback to free its private data) and the vertex programs, as well

+ * as their hash tables.

+ *

+ * \sa alloc_shared_state().

+ */

+static void

+free_shared_state(struct gl_context *ctx, struct gl_shared_state *shared)

+{

+   GLuint i;

+

+   /* Free the dummy/fallback texture object */

+   if (shared->FallbackTex)

+      ctx->Driver.DeleteTexture(ctx, shared->FallbackTex);

+

+   /*

+    * Free display lists

+    */

+   _mesa_HashDeleteAll(shared->DisplayList, delete_displaylist_cb, ctx);

+   _mesa_DeleteHashTable(shared->DisplayList);

+

+#if FEATURE_ARB_shader_objects

+   _mesa_HashWalk(shared->ShaderObjects, free_shader_program_data_cb, ctx);

+   _mesa_HashDeleteAll(shared->ShaderObjects, delete_shader_cb, ctx);

+   _mesa_DeleteHashTable(shared->ShaderObjects);

+#endif

+

+   _mesa_HashDeleteAll(shared->Programs, delete_program_cb, ctx);

+   _mesa_DeleteHashTable(shared->Programs);

+

+#if FEATURE_ARB_vertex_program

+   _mesa_reference_vertprog(ctx, &shared->DefaultVertexProgram, NULL);

+#endif

+

+#if FEATURE_ARB_fragment_program

+   _mesa_reference_fragprog(ctx, &shared->DefaultFragmentProgram, NULL);

+#endif

+

+#if FEATURE_ATI_fragment_shader

+   _mesa_HashDeleteAll(shared->ATIShaders, delete_fragshader_cb, ctx);

+   _mesa_DeleteHashTable(shared->ATIShaders);

+   _mesa_delete_ati_fragment_shader(ctx, shared->DefaultFragmentShader);

+#endif

+

+#if FEATURE_ARB_vertex_buffer_object || FEATURE_ARB_pixel_buffer_object

+   _mesa_HashDeleteAll(shared->BufferObjects, delete_bufferobj_cb, ctx);

+   _mesa_DeleteHashTable(shared->BufferObjects);

+#endif

+

+#if FEATURE_EXT_framebuffer_object

+   _mesa_HashDeleteAll(shared->FrameBuffers, delete_framebuffer_cb, ctx);

+   _mesa_DeleteHashTable(shared->FrameBuffers);

+   _mesa_HashDeleteAll(shared->RenderBuffers, delete_renderbuffer_cb, ctx);

+   _mesa_DeleteHashTable(shared->RenderBuffers);

+#endif

+

+#if FEATURE_ARB_vertex_buffer_object

+   _mesa_reference_buffer_object(ctx, &shared->NullBufferObj, NULL);

+#endif

+

+   {

+      struct simple_node *node;

+      struct simple_node *temp;

+

+      foreach_s(node, temp, & shared->SyncObjects) {

+	 _mesa_unref_sync_object(ctx, (struct gl_sync_object *) node);

+      }

+   }

+

+   /*

+    * Free texture objects (after FBOs since some textures might have

+    * been bound to FBOs).

+    */

+   ASSERT(ctx->Driver.DeleteTexture);

+   /* the default textures */

+   for (i = 0; i < NUM_TEXTURE_TARGETS; i++) {

+      ctx->Driver.DeleteTexture(ctx, shared->DefaultTex[i]);

+   }

+

+   /* all other textures */

+   _mesa_HashDeleteAll(shared->TexObjects, delete_texture_cb, ctx);

+   _mesa_DeleteHashTable(shared->TexObjects);

+

+   _glthread_DESTROY_MUTEX(shared->Mutex);

+   _glthread_DESTROY_MUTEX(shared->TexMutex);

+

+   free(shared);

+}

+

+

+/**

+ * Decrement shared state object reference count and potentially free it

+ * and all children structures.

+ *

+ * \param ctx GL context.

+ * \param shared shared state pointer.

+ *

+ * \sa free_shared_state().

+ */

+void

+_mesa_release_shared_state(struct gl_context *ctx, struct gl_shared_state *shared)

+{

+   GLint RefCount;

+

+   _glthread_LOCK_MUTEX(shared->Mutex);

+   RefCount = --shared->RefCount;

+   _glthread_UNLOCK_MUTEX(shared->Mutex);

+

+   assert(RefCount >= 0);

+

+   if (RefCount == 0) {

+      /* free shared state */

+      free_shared_state( ctx, shared );

+   }

+}