2 * Mesa 3-D graphics library
4 * Copyright (C) 2009 VMware, Inc. All Rights Reserved.
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included
14 * in all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
17 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22 * OTHER DEALINGS IN THE SOFTWARE.
27 * Shared-context state
30 #include "util/imports.h"
33 #include "atifragshader.h"
34 #include "bufferobj.h"
36 #include "program/program.h"
38 #include "samplerobj.h"
39 #include "shaderapi.h"
40 #include "shaderobj.h"
42 #include "texturebindless.h"
44 #include "util/hash_table.h"
48 free_shared_state(struct gl_context
*ctx
, struct gl_shared_state
*shared
);
51 * Allocate and initialize a shared context state structure.
52 * Initializes the display list, texture objects and vertex programs hash
53 * tables, allocates the texture objects. If it runs out of memory, frees
54 * everything already allocated before returning NULL.
56 * \return pointer to a gl_shared_state structure on success, or NULL on
59 struct gl_shared_state
*
60 _mesa_alloc_shared_state(struct gl_context
*ctx
)
62 struct gl_shared_state
*shared
;
65 shared
= CALLOC_STRUCT(gl_shared_state
);
69 simple_mtx_init(&shared
->Mutex
, mtx_plain
);
71 shared
->DisplayList
= _mesa_NewHashTable();
72 shared
->BitmapAtlas
= _mesa_NewHashTable();
73 shared
->TexObjects
= _mesa_NewHashTable();
74 shared
->Programs
= _mesa_NewHashTable();
76 shared
->DefaultVertexProgram
=
77 ctx
->Driver
.NewProgram(ctx
, GL_VERTEX_PROGRAM_ARB
, 0, true);
78 shared
->DefaultFragmentProgram
=
79 ctx
->Driver
.NewProgram(ctx
, GL_FRAGMENT_PROGRAM_ARB
, 0, true);
81 shared
->ATIShaders
= _mesa_NewHashTable();
82 shared
->DefaultFragmentShader
= _mesa_new_ati_fragment_shader(ctx
, 0);
84 shared
->ShaderObjects
= _mesa_NewHashTable();
86 shared
->BufferObjects
= _mesa_NewHashTable();
88 /* GL_ARB_sampler_objects */
89 shared
->SamplerObjects
= _mesa_NewHashTable();
91 /* GL_ARB_bindless_texture */
92 _mesa_init_shared_handles(shared
);
94 /* ARB_shading_language_include */
95 _mesa_init_shader_includes(shared
);
96 mtx_init(&shared
->ShaderIncludeMutex
, mtx_plain
);
98 /* Allocate the default buffer object */
99 shared
->NullBufferObj
= ctx
->Driver
.NewBufferObject(ctx
, 0);
100 if (!shared
->NullBufferObj
)
103 /* Create default texture objects */
104 for (i
= 0; i
< NUM_TEXTURE_TARGETS
; i
++) {
105 /* NOTE: the order of these enums matches the TEXTURE_x_INDEX values */
106 static const GLenum targets
[] = {
107 GL_TEXTURE_2D_MULTISAMPLE
,
108 GL_TEXTURE_2D_MULTISAMPLE_ARRAY
,
109 GL_TEXTURE_CUBE_MAP_ARRAY
,
111 GL_TEXTURE_2D_ARRAY_EXT
,
112 GL_TEXTURE_1D_ARRAY_EXT
,
113 GL_TEXTURE_EXTERNAL_OES
,
116 GL_TEXTURE_RECTANGLE_NV
,
120 STATIC_ASSERT(ARRAY_SIZE(targets
) == NUM_TEXTURE_TARGETS
);
121 shared
->DefaultTex
[i
] = ctx
->Driver
.NewTextureObject(ctx
, 0, targets
[i
]);
122 /* Need to explicitly set/overwrite the TargetIndex field here since
123 * the call to _mesa_tex_target_to_index() in NewTextureObject() may
124 * fail if the texture target is not supported.
126 shared
->DefaultTex
[i
]->TargetIndex
= i
;
130 assert(shared
->DefaultTex
[TEXTURE_1D_INDEX
]->RefCount
== 1);
132 /* Mutex and timestamp for texobj state validation */
133 mtx_init(&shared
->TexMutex
, mtx_recursive
);
134 shared
->TextureStateStamp
= 0;
136 shared
->FrameBuffers
= _mesa_NewHashTable();
137 shared
->RenderBuffers
= _mesa_NewHashTable();
139 shared
->SyncObjects
= _mesa_set_create(NULL
, _mesa_hash_pointer
,
140 _mesa_key_pointer_equal
);
142 shared
->MemoryObjects
= _mesa_NewHashTable();
143 shared
->SemaphoreObjects
= _mesa_NewHashTable();
148 free_shared_state(ctx
, shared
);
154 * Callback for deleting a display list. Called by _mesa_HashDeleteAll().
157 delete_displaylist_cb(GLuint id
, void *data
, void *userData
)
159 struct gl_display_list
*list
= (struct gl_display_list
*) data
;
160 struct gl_context
*ctx
= (struct gl_context
*) userData
;
161 _mesa_delete_list(ctx
, list
);
166 * Callback for deleting a bitmap atlas. Called by _mesa_HashDeleteAll().
169 delete_bitmap_atlas_cb(GLuint id
, void *data
, void *userData
)
171 struct gl_bitmap_atlas
*atlas
= (struct gl_bitmap_atlas
*) data
;
172 struct gl_context
*ctx
= (struct gl_context
*) userData
;
173 _mesa_delete_bitmap_atlas(ctx
, atlas
);
178 * Callback for deleting a texture object. Called by _mesa_HashDeleteAll().
181 delete_texture_cb(GLuint id
, void *data
, void *userData
)
183 struct gl_texture_object
*texObj
= (struct gl_texture_object
*) data
;
184 struct gl_context
*ctx
= (struct gl_context
*) userData
;
185 ctx
->Driver
.DeleteTexture(ctx
, texObj
);
190 * Callback for deleting a program object. Called by _mesa_HashDeleteAll().
193 delete_program_cb(GLuint id
, void *data
, void *userData
)
195 struct gl_program
*prog
= (struct gl_program
*) data
;
196 struct gl_context
*ctx
= (struct gl_context
*) userData
;
197 if(prog
!= &_mesa_DummyProgram
) {
198 assert(prog
->RefCount
== 1); /* should only be referenced by hash table */
199 prog
->RefCount
= 0; /* now going away */
200 ctx
->Driver
.DeleteProgram(ctx
, prog
);
206 * Callback for deleting an ATI fragment shader object.
207 * Called by _mesa_HashDeleteAll().
210 delete_fragshader_cb(GLuint id
, void *data
, void *userData
)
212 struct ati_fragment_shader
*shader
= (struct ati_fragment_shader
*) data
;
213 struct gl_context
*ctx
= (struct gl_context
*) userData
;
214 _mesa_delete_ati_fragment_shader(ctx
, shader
);
219 * Callback for deleting a buffer object. Called by _mesa_HashDeleteAll().
222 delete_bufferobj_cb(GLuint id
, void *data
, void *userData
)
224 struct gl_buffer_object
*bufObj
= (struct gl_buffer_object
*) data
;
225 struct gl_context
*ctx
= (struct gl_context
*) userData
;
227 _mesa_buffer_unmap_all_mappings(ctx
, bufObj
);
228 _mesa_reference_buffer_object(ctx
, &bufObj
, NULL
);
233 * Callback for freeing shader program data. Call it before delete_shader_cb
234 * to avoid memory access error.
237 free_shader_program_data_cb(GLuint id
, void *data
, void *userData
)
239 struct gl_context
*ctx
= (struct gl_context
*) userData
;
240 struct gl_shader_program
*shProg
= (struct gl_shader_program
*) data
;
242 if (shProg
->Type
== GL_SHADER_PROGRAM_MESA
) {
243 _mesa_free_shader_program_data(ctx
, shProg
);
249 * Callback for deleting shader and shader programs objects.
250 * Called by _mesa_HashDeleteAll().
253 delete_shader_cb(GLuint id
, void *data
, void *userData
)
255 struct gl_context
*ctx
= (struct gl_context
*) userData
;
256 struct gl_shader
*sh
= (struct gl_shader
*) data
;
257 if (_mesa_validate_shader_target(ctx
, sh
->Type
)) {
258 _mesa_delete_shader(ctx
, sh
);
261 struct gl_shader_program
*shProg
= (struct gl_shader_program
*) data
;
262 assert(shProg
->Type
== GL_SHADER_PROGRAM_MESA
);
263 _mesa_delete_shader_program(ctx
, shProg
);
269 * Callback for deleting a framebuffer object. Called by _mesa_HashDeleteAll()
272 delete_framebuffer_cb(GLuint id
, void *data
, void *userData
)
274 struct gl_framebuffer
*fb
= (struct gl_framebuffer
*) data
;
275 /* The fact that the framebuffer is in the hashtable means its refcount
276 * is one, but we're removing from the hashtable now. So clear refcount.
278 /*assert(fb->RefCount == 1);*/
281 /* NOTE: Delete should always be defined but there are two reports
282 * of it being NULL (bugs 13507, 14293). Work-around for now.
290 * Callback for deleting a renderbuffer object. Called by _mesa_HashDeleteAll()
293 delete_renderbuffer_cb(GLuint id
, void *data
, void *userData
)
295 struct gl_context
*ctx
= (struct gl_context
*) userData
;
296 struct gl_renderbuffer
*rb
= (struct gl_renderbuffer
*) data
;
297 rb
->RefCount
= 0; /* see comment for FBOs above */
304 * Callback for deleting a sampler object. Called by _mesa_HashDeleteAll()
307 delete_sampler_object_cb(GLuint id
, void *data
, void *userData
)
309 struct gl_context
*ctx
= (struct gl_context
*) userData
;
310 struct gl_sampler_object
*sampObj
= (struct gl_sampler_object
*) data
;
311 _mesa_reference_sampler_object(ctx
, &sampObj
, NULL
);
315 * Callback for deleting a memory object. Called by _mesa_HashDeleteAll().
318 delete_memory_object_cb(GLuint id
, void *data
, void *userData
)
320 struct gl_memory_object
*memObj
= (struct gl_memory_object
*) data
;
321 struct gl_context
*ctx
= (struct gl_context
*) userData
;
322 ctx
->Driver
.DeleteMemoryObject(ctx
, memObj
);
326 * Callback for deleting a memory object. Called by _mesa_HashDeleteAll().
329 delete_semaphore_object_cb(GLuint id
, void *data
, void *userData
)
331 struct gl_semaphore_object
*semObj
= (struct gl_semaphore_object
*) data
;
332 struct gl_context
*ctx
= (struct gl_context
*) userData
;
333 ctx
->Driver
.DeleteSemaphoreObject(ctx
, semObj
);
337 * Deallocate a shared state object and all children structures.
339 * \param ctx GL context.
340 * \param shared shared state pointer.
342 * Frees the display lists, the texture objects (calling the driver texture
343 * deletion callback to free its private data) and the vertex programs, as well
344 * as their hash tables.
346 * \sa alloc_shared_state().
349 free_shared_state(struct gl_context
*ctx
, struct gl_shared_state
*shared
)
353 /* Free the dummy/fallback texture objects */
354 for (i
= 0; i
< NUM_TEXTURE_TARGETS
; i
++) {
355 if (shared
->FallbackTex
[i
])
356 ctx
->Driver
.DeleteTexture(ctx
, shared
->FallbackTex
[i
]);
362 if (shared
->DisplayList
) {
363 _mesa_HashDeleteAll(shared
->DisplayList
, delete_displaylist_cb
, ctx
);
364 _mesa_DeleteHashTable(shared
->DisplayList
);
367 if (shared
->BitmapAtlas
) {
368 _mesa_HashDeleteAll(shared
->BitmapAtlas
, delete_bitmap_atlas_cb
, ctx
);
369 _mesa_DeleteHashTable(shared
->BitmapAtlas
);
372 if (shared
->ShaderObjects
) {
373 _mesa_HashWalk(shared
->ShaderObjects
, free_shader_program_data_cb
, ctx
);
374 _mesa_HashDeleteAll(shared
->ShaderObjects
, delete_shader_cb
, ctx
);
375 _mesa_DeleteHashTable(shared
->ShaderObjects
);
378 if (shared
->Programs
) {
379 _mesa_HashDeleteAll(shared
->Programs
, delete_program_cb
, ctx
);
380 _mesa_DeleteHashTable(shared
->Programs
);
383 if (shared
->DefaultVertexProgram
)
384 _mesa_reference_program(ctx
, &shared
->DefaultVertexProgram
, NULL
);
386 if (shared
->DefaultFragmentProgram
)
387 _mesa_reference_program(ctx
, &shared
->DefaultFragmentProgram
, NULL
);
389 if (shared
->DefaultFragmentShader
)
390 _mesa_delete_ati_fragment_shader(ctx
, shared
->DefaultFragmentShader
);
392 if (shared
->ATIShaders
) {
393 _mesa_HashDeleteAll(shared
->ATIShaders
, delete_fragshader_cb
, ctx
);
394 _mesa_DeleteHashTable(shared
->ATIShaders
);
397 if (shared
->BufferObjects
) {
398 _mesa_HashDeleteAll(shared
->BufferObjects
, delete_bufferobj_cb
, ctx
);
399 _mesa_DeleteHashTable(shared
->BufferObjects
);
402 if (shared
->FrameBuffers
) {
403 _mesa_HashDeleteAll(shared
->FrameBuffers
, delete_framebuffer_cb
, ctx
);
404 _mesa_DeleteHashTable(shared
->FrameBuffers
);
407 if (shared
->RenderBuffers
) {
408 _mesa_HashDeleteAll(shared
->RenderBuffers
, delete_renderbuffer_cb
, ctx
);
409 _mesa_DeleteHashTable(shared
->RenderBuffers
);
412 if (shared
->NullBufferObj
)
413 _mesa_reference_buffer_object(ctx
, &shared
->NullBufferObj
, NULL
);
415 if (shared
->SyncObjects
) {
416 set_foreach(shared
->SyncObjects
, entry
) {
417 _mesa_unref_sync_object(ctx
, (struct gl_sync_object
*) entry
->key
, 1);
420 _mesa_set_destroy(shared
->SyncObjects
, NULL
);
423 if (shared
->SamplerObjects
) {
424 _mesa_HashDeleteAll(shared
->SamplerObjects
, delete_sampler_object_cb
,
426 _mesa_DeleteHashTable(shared
->SamplerObjects
);
430 * Free texture objects (after FBOs since some textures might have
431 * been bound to FBOs).
433 assert(ctx
->Driver
.DeleteTexture
);
434 /* the default textures */
435 for (i
= 0; i
< NUM_TEXTURE_TARGETS
; i
++) {
436 if (shared
->DefaultTex
[i
])
437 ctx
->Driver
.DeleteTexture(ctx
, shared
->DefaultTex
[i
]);
440 /* all other textures */
441 if (shared
->TexObjects
) {
442 _mesa_HashDeleteAll(shared
->TexObjects
, delete_texture_cb
, ctx
);
443 _mesa_DeleteHashTable(shared
->TexObjects
);
446 _mesa_free_shared_handles(shared
);
448 /* ARB_shading_language_include */
449 _mesa_destroy_shader_includes(shared
);
450 mtx_destroy(&shared
->ShaderIncludeMutex
);
452 if (shared
->MemoryObjects
) {
453 _mesa_HashDeleteAll(shared
->MemoryObjects
, delete_memory_object_cb
, ctx
);
454 _mesa_DeleteHashTable(shared
->MemoryObjects
);
457 if (shared
->SemaphoreObjects
) {
458 _mesa_HashDeleteAll(shared
->SemaphoreObjects
, delete_semaphore_object_cb
, ctx
);
459 _mesa_DeleteHashTable(shared
->SemaphoreObjects
);
462 simple_mtx_destroy(&shared
->Mutex
);
463 mtx_destroy(&shared
->TexMutex
);
470 * gl_shared_state objects are ref counted.
471 * If ptr's refcount goes to zero, free the shared state.
474 _mesa_reference_shared_state(struct gl_context
*ctx
,
475 struct gl_shared_state
**ptr
,
476 struct gl_shared_state
*state
)
482 /* unref old state */
483 struct gl_shared_state
*old
= *ptr
;
486 simple_mtx_lock(&old
->Mutex
);
487 assert(old
->RefCount
>= 1);
489 delete = (old
->RefCount
== 0);
490 simple_mtx_unlock(&old
->Mutex
);
493 free_shared_state(ctx
, old
);
500 /* reference new state */
501 simple_mtx_lock(&state
->Mutex
);
504 simple_mtx_unlock(&state
->Mutex
);