mesa: Change "BRIAN PAUL" to "THE AUTHORS" in license text.
[mesa.git] / src / mesa / main / shared.c
index ce9fc4de327474b61e8f5f0b8d5e41b02532670f..f8c479e806fd233268fd9053521bdc0567eff650 100644 (file)
@@ -17,7 +17,7 @@
  * 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
+ * THE AUTHORS 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.
  */
  * Shared-context state
  */
 
-
-
 #include "imports.h"
-#include "mfeatures.h"
 #include "mtypes.h"
 #include "hash.h"
-#if FEATURE_ATI_fragment_shader
+#include "hash_table.h"
 #include "atifragshader.h"
-#endif
 #include "bufferobj.h"
 #include "shared.h"
 #include "program/program.h"
 #include "dlist.h"
+#include "samplerobj.h"
+#include "set.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
@@ -68,28 +67,22 @@ _mesa_alloc_shared_state(struct gl_context *ctx)
    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
+   shared->DefaultVertexProgram =
+      gl_vertex_program(ctx->Driver.NewProgram(ctx,
+                                               GL_VERTEX_PROGRAM_ARB, 0));
+   shared->DefaultFragmentProgram =
+      gl_fragment_program(ctx->Driver.NewProgram(ctx,
+                                                 GL_FRAGMENT_PROGRAM_ARB, 0));
 
-#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
+
+   /* GL_ARB_sampler_objects */
+   shared->SamplerObjects = _mesa_NewHashTable();
 
    /* Allocate the default buffer object */
    shared->NullBufferObj = ctx->Driver.NewBufferObject(ctx, 0, 0);
@@ -97,15 +90,21 @@ _mesa_alloc_shared_state(struct gl_context *ctx)
    /* 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] = {
+      static const GLenum targets[] = {
+         GL_TEXTURE_2D_MULTISAMPLE,
+         GL_TEXTURE_2D_MULTISAMPLE_ARRAY,
+         GL_TEXTURE_CUBE_MAP_ARRAY,
+         GL_TEXTURE_BUFFER,
          GL_TEXTURE_2D_ARRAY_EXT,
          GL_TEXTURE_1D_ARRAY_EXT,
+         GL_TEXTURE_EXTERNAL_OES,
          GL_TEXTURE_CUBE_MAP,
          GL_TEXTURE_3D,
          GL_TEXTURE_RECTANGLE_NV,
          GL_TEXTURE_2D,
          GL_TEXTURE_1D
       };
+      STATIC_ASSERT(Elements(targets) == NUM_TEXTURE_TARGETS);
       shared->DefaultTex[i] = ctx->Driver.NewTextureObject(ctx, 0, targets[i]);
    }
 
@@ -116,12 +115,10 @@ _mesa_alloc_shared_state(struct gl_context *ctx)
    _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);
+   shared->SyncObjects = _mesa_set_create(NULL, _mesa_key_pointer_equal);
 
    return shared;
 }
@@ -167,7 +164,6 @@ delete_program_cb(GLuint id, void *data, void *userData)
 }
 
 
-#if FEATURE_ATI_fragment_shader
 /**
  * Callback for deleting an ATI fragment shader object.
  * Called by _mesa_HashDeleteAll().
@@ -179,7 +175,6 @@ delete_fragshader_cb(GLuint id, void *data, void *userData)
    struct gl_context *ctx = (struct gl_context *) userData;
    _mesa_delete_ati_fragment_shader(ctx, shader);
 }
-#endif
 
 
 /**
@@ -191,7 +186,7 @@ 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);
+      ctx->Driver.UnmapBuffer(ctx, bufObj);
       bufObj->Pointer = NULL;
    }
    _mesa_reference_buffer_object(ctx, &bufObj, NULL);
@@ -261,10 +256,23 @@ delete_framebuffer_cb(GLuint id, void *data, void *userData)
 static void
 delete_renderbuffer_cb(GLuint id, void *data, void *userData)
 {
+   struct gl_context *ctx = (struct gl_context *) userData;
    struct gl_renderbuffer *rb = (struct gl_renderbuffer *) data;
    rb->RefCount = 0;  /* see comment for FBOs above */
    if (rb->Delete)
-      rb->Delete(rb);
+      rb->Delete(ctx, rb);
+}
+
+
+/**
+ * Callback for deleting a sampler object. Called by _mesa_HashDeleteAll()
+ */
+static void
+delete_sampler_object_cb(GLuint id, void *data, void *userData)
+{
+   struct gl_context *ctx = (struct gl_context *) userData;
+   struct gl_sampler_object *sampObj = (struct gl_sampler_object *) data;
+   _mesa_reference_sampler_object(ctx, &sampObj, NULL);
 }
 
 
@@ -285,9 +293,11 @@ 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 the dummy/fallback texture objects */
+   for (i = 0; i < NUM_TEXTURE_TARGETS; i++) {
+      if (shared->FallbackTex[i])
+         ctx->Driver.DeleteTexture(ctx, shared->FallbackTex[i]);
+   }
 
    /*
     * Free display lists
@@ -295,53 +305,41 @@ free_shared_state(struct gl_context *ctx, struct gl_shared_state *shared)
    _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;
+      struct set_entry *entry;
 
-      foreach_s(node, temp, & shared->SyncObjects) {
-        _mesa_unref_sync_object(ctx, (struct gl_sync_object *) node);
+      set_foreach(shared->SyncObjects, entry) {
+         _mesa_unref_sync_object(ctx, (struct gl_sync_object *) entry->key);
       }
    }
+   _mesa_set_destroy(shared->SyncObjects, NULL);
+
+   _mesa_HashDeleteAll(shared->SamplerObjects, delete_sampler_object_cb, ctx);
+   _mesa_DeleteHashTable(shared->SamplerObjects);
 
    /*
     * Free texture objects (after FBOs since some textures might have
@@ -365,27 +363,40 @@ free_shared_state(struct gl_context *ctx, struct gl_shared_state *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().
+ * gl_shared_state objects are ref counted.
+ * If ptr's refcount goes to zero, free the shared state.
  */
 void
-_mesa_release_shared_state(struct gl_context *ctx, struct gl_shared_state *shared)
+_mesa_reference_shared_state(struct gl_context *ctx,
+                             struct gl_shared_state **ptr,
+                             struct gl_shared_state *state)
 {
-   GLint RefCount;
-
-   _glthread_LOCK_MUTEX(shared->Mutex);
-   RefCount = --shared->RefCount;
-   _glthread_UNLOCK_MUTEX(shared->Mutex);
+   if (*ptr == state)
+      return;
+
+   if (*ptr) {
+      /* unref old state */
+      struct gl_shared_state *old = *ptr;
+      GLboolean delete;
+
+      _glthread_LOCK_MUTEX(old->Mutex);
+      assert(old->RefCount >= 1);
+      old->RefCount--;
+      delete = (old->RefCount == 0);
+      _glthread_UNLOCK_MUTEX(old->Mutex);
+
+      if (delete) {
+         free_shared_state(ctx, old);
+      }
 
-   assert(RefCount >= 0);
+      *ptr = NULL;
+   }
 
-   if (RefCount == 0) {
-      /* free shared state */
-      free_shared_state( ctx, shared );
+   if (state) {
+      /* reference new state */
+      _glthread_LOCK_MUTEX(state->Mutex);
+      state->RefCount++;
+      *ptr = state;
+      _glthread_UNLOCK_MUTEX(state->Mutex);
    }
 }