0,0 → 1,402 |
/* |
* Mesa 3-D graphics library |
* |
* 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 |
* THE AUTHORS OR COPYRIGHT HOLDERS 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" |
#include "hash_table.h" |
#include "atifragshader.h" |
#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 |
* 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(); |
|
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)); |
|
shared->ATIShaders = _mesa_NewHashTable(); |
shared->DefaultFragmentShader = _mesa_new_ati_fragment_shader(ctx, 0); |
|
shared->ShaderObjects = _mesa_NewHashTable(); |
|
shared->BufferObjects = _mesa_NewHashTable(); |
|
/* GL_ARB_sampler_objects */ |
shared->SamplerObjects = _mesa_NewHashTable(); |
|
/* 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[] = { |
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]); |
} |
|
/* 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; |
|
shared->FrameBuffers = _mesa_NewHashTable(); |
shared->RenderBuffers = _mesa_NewHashTable(); |
|
shared->SyncObjects = _mesa_set_create(NULL, _mesa_key_pointer_equal); |
|
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); |
} |
} |
|
|
/** |
* 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); |
} |
|
|
/** |
* 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, 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_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(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); |
} |
|
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/** |
* 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 objects */ |
for (i = 0; i < NUM_TEXTURE_TARGETS; i++) { |
if (shared->FallbackTex[i]) |
ctx->Driver.DeleteTexture(ctx, shared->FallbackTex[i]); |
} |
|
/* |
* Free display lists |
*/ |
_mesa_HashDeleteAll(shared->DisplayList, delete_displaylist_cb, ctx); |
_mesa_DeleteHashTable(shared->DisplayList); |
|
_mesa_HashWalk(shared->ShaderObjects, free_shader_program_data_cb, ctx); |
_mesa_HashDeleteAll(shared->ShaderObjects, delete_shader_cb, ctx); |
_mesa_DeleteHashTable(shared->ShaderObjects); |
|
_mesa_HashDeleteAll(shared->Programs, delete_program_cb, ctx); |
_mesa_DeleteHashTable(shared->Programs); |
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_mesa_reference_vertprog(ctx, &shared->DefaultVertexProgram, NULL); |
_mesa_reference_fragprog(ctx, &shared->DefaultFragmentProgram, NULL); |
|
_mesa_HashDeleteAll(shared->ATIShaders, delete_fragshader_cb, ctx); |
_mesa_DeleteHashTable(shared->ATIShaders); |
_mesa_delete_ati_fragment_shader(ctx, shared->DefaultFragmentShader); |
|
_mesa_HashDeleteAll(shared->BufferObjects, delete_bufferobj_cb, ctx); |
_mesa_DeleteHashTable(shared->BufferObjects); |
|
_mesa_HashDeleteAll(shared->FrameBuffers, delete_framebuffer_cb, ctx); |
_mesa_DeleteHashTable(shared->FrameBuffers); |
_mesa_HashDeleteAll(shared->RenderBuffers, delete_renderbuffer_cb, ctx); |
_mesa_DeleteHashTable(shared->RenderBuffers); |
|
_mesa_reference_buffer_object(ctx, &shared->NullBufferObj, NULL); |
|
{ |
struct set_entry *entry; |
|
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 |
* 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); |
} |
|
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/** |
* gl_shared_state objects are ref counted. |
* If ptr's refcount goes to zero, free the shared state. |
*/ |
void |
_mesa_reference_shared_state(struct gl_context *ctx, |
struct gl_shared_state **ptr, |
struct gl_shared_state *state) |
{ |
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); |
} |
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*ptr = NULL; |
} |
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if (state) { |
/* reference new state */ |
_glthread_LOCK_MUTEX(state->Mutex); |
state->RefCount++; |
*ptr = state; |
_glthread_UNLOCK_MUTEX(state->Mutex); |
} |
} |