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Diffstat (limited to 'mesalib/src/mesa/main/shared.c')
| -rw-r--r-- | mesalib/src/mesa/main/shared.c | 374 |
1 files changed, 374 insertions, 0 deletions
diff --git a/mesalib/src/mesa/main/shared.c b/mesalib/src/mesa/main/shared.c new file mode 100644 index 000000000..643ad3354 --- /dev/null +++ b/mesalib/src/mesa/main/shared.c @@ -0,0 +1,374 @@ +/* + * 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" +#include "arrayobj.h" +#include "bufferobj.h" +#include "shared.h" +#include "shader/program.h" +#include "shader/shader_api.h" +#if FEATURE_dlist +#include "dlist.h" +#endif +#if FEATURE_ATI_fragment_shader +#include "shader/atifragshader.h" +#endif +#if FEATURE_ARB_sync +#include "syncobj.h" +#endif + +/** + * 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 and set refcount so high that + * it never gets deleted. + * XXX with recent/improved refcounting this may not longer be needed. + */ + shared->NullBufferObj = ctx->Driver.NewBufferObject(ctx, 0, 0); + shared->NullBufferObj->RefCount = 1000 * 1000 * 1000; + + /* 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 + +#if FEATURE_ARB_sync + make_empty_list(& shared->SyncObjects); +#endif + + return shared; +} + + +/** + * Callback for deleting a display list. Called by _mesa_HashDeleteAll(). + */ +static void +delete_displaylist_cb(GLuint id, void *data, void *userData) +{ +#if FEATURE_dlist + struct gl_display_list *list = (struct gl_display_list *) data; + GLcontext *ctx = (GLcontext *) userData; + _mesa_delete_list(ctx, list); +#endif +} + + +/** + * 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; + } + ctx->Driver.DeleteBuffer(ctx, bufObj); +} + + +/** + * 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) { + _mesa_free_shader(ctx, sh); + } + else { + struct gl_shader_program *shProg = (struct gl_shader_program *) data; + ASSERT(shProg->Type == GL_SHADER_PROGRAM_MESA); + _mesa_free_shader_program(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(). + */ +void +_mesa_free_shared_state(GLcontext *ctx, struct gl_shared_state *shared) +{ + GLuint i; + + /* + * 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 + ctx->Driver.DeleteBuffer(ctx, shared->NullBufferObj); +#endif + +#if FEATURE_ARB_sync + { + struct simple_node *node; + struct simple_node *temp; + + foreach_s(node, temp, & shared->SyncObjects) { + _mesa_unref_sync_object(ctx, (struct gl_sync_object *) node); + } + } +#endif + + /* + * 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); + + _mesa_free(shared); +} |