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
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"
46 #include "util/u_memory.h"
49 free_shared_state(struct gl_context
*ctx
, struct gl_shared_state
*shared
);
52 * Allocate and initialize a shared context state structure.
53 * Initializes the display list, texture objects and vertex programs hash
54 * tables, allocates the texture objects. If it runs out of memory, frees
55 * everything already allocated before returning NULL.
57 * \return pointer to a gl_shared_state structure on success, or NULL on
60 struct gl_shared_state
*
61 _mesa_alloc_shared_state(struct gl_context
*ctx
)
63 struct gl_shared_state
*shared
;
66 shared
= CALLOC_STRUCT(gl_shared_state
);
70 simple_mtx_init(&shared
->Mutex
, mtx_plain
);
72 shared
->DisplayList
= _mesa_NewHashTable();
73 shared
->BitmapAtlas
= _mesa_NewHashTable();
74 shared
->TexObjects
= _mesa_NewHashTable();
75 shared
->Programs
= _mesa_NewHashTable();
77 shared
->DefaultVertexProgram
=
78 ctx
->Driver
.NewProgram(ctx
, MESA_SHADER_VERTEX
, 0, true);
79 shared
->DefaultFragmentProgram
=
80 ctx
->Driver
.NewProgram(ctx
, MESA_SHADER_FRAGMENT
, 0, true);
82 shared
->ATIShaders
= _mesa_NewHashTable();
83 shared
->DefaultFragmentShader
= _mesa_new_ati_fragment_shader(ctx
, 0);
85 shared
->ShaderObjects
= _mesa_NewHashTable();
87 shared
->BufferObjects
= _mesa_NewHashTable();
89 /* GL_ARB_sampler_objects */
90 shared
->SamplerObjects
= _mesa_NewHashTable();
92 /* GL_ARB_bindless_texture */
93 _mesa_init_shared_handles(shared
);
95 /* ARB_shading_language_include */
96 _mesa_init_shader_includes(shared
);
97 mtx_init(&shared
->ShaderIncludeMutex
, mtx_plain
);
99 /* Create default texture objects */
100 for (i
= 0; i
< NUM_TEXTURE_TARGETS
; i
++) {
101 /* NOTE: the order of these enums matches the TEXTURE_x_INDEX values */
102 static const GLenum targets
[] = {
103 GL_TEXTURE_2D_MULTISAMPLE
,
104 GL_TEXTURE_2D_MULTISAMPLE_ARRAY
,
105 GL_TEXTURE_CUBE_MAP_ARRAY
,
107 GL_TEXTURE_2D_ARRAY_EXT
,
108 GL_TEXTURE_1D_ARRAY_EXT
,
109 GL_TEXTURE_EXTERNAL_OES
,
112 GL_TEXTURE_RECTANGLE_NV
,
116 STATIC_ASSERT(ARRAY_SIZE(targets
) == NUM_TEXTURE_TARGETS
);
117 shared
->DefaultTex
[i
] = ctx
->Driver
.NewTextureObject(ctx
, 0, targets
[i
]);
118 /* Need to explicitly set/overwrite the TargetIndex field here since
119 * the call to _mesa_tex_target_to_index() in NewTextureObject() may
120 * fail if the texture target is not supported.
122 shared
->DefaultTex
[i
]->TargetIndex
= i
;
126 assert(shared
->DefaultTex
[TEXTURE_1D_INDEX
]->RefCount
== 1);
128 /* Mutex and timestamp for texobj state validation */
129 mtx_init(&shared
->TexMutex
, mtx_recursive
);
130 shared
->TextureStateStamp
= 0;
132 shared
->FrameBuffers
= _mesa_NewHashTable();
133 shared
->RenderBuffers
= _mesa_NewHashTable();
135 shared
->SyncObjects
= _mesa_set_create(NULL
, _mesa_hash_pointer
,
136 _mesa_key_pointer_equal
);
138 shared
->MemoryObjects
= _mesa_NewHashTable();
139 shared
->SemaphoreObjects
= _mesa_NewHashTable();
146 * Callback for deleting a display list. Called by _mesa_HashDeleteAll().
149 delete_displaylist_cb(GLuint id
, void *data
, void *userData
)
151 struct gl_display_list
*list
= (struct gl_display_list
*) data
;
152 struct gl_context
*ctx
= (struct gl_context
*) userData
;
153 _mesa_delete_list(ctx
, list
);
158 * Callback for deleting a bitmap atlas. Called by _mesa_HashDeleteAll().
161 delete_bitmap_atlas_cb(GLuint id
, void *data
, void *userData
)
163 struct gl_bitmap_atlas
*atlas
= (struct gl_bitmap_atlas
*) data
;
164 struct gl_context
*ctx
= (struct gl_context
*) userData
;
165 _mesa_delete_bitmap_atlas(ctx
, atlas
);
170 * Callback for deleting a texture object. Called by _mesa_HashDeleteAll().
173 delete_texture_cb(GLuint id
, void *data
, void *userData
)
175 struct gl_texture_object
*texObj
= (struct gl_texture_object
*) data
;
176 struct gl_context
*ctx
= (struct gl_context
*) userData
;
177 ctx
->Driver
.DeleteTexture(ctx
, texObj
);
182 * Callback for deleting a program object. Called by _mesa_HashDeleteAll().
185 delete_program_cb(GLuint id
, void *data
, void *userData
)
187 struct gl_program
*prog
= (struct gl_program
*) data
;
188 struct gl_context
*ctx
= (struct gl_context
*) userData
;
189 if(prog
!= &_mesa_DummyProgram
) {
190 assert(prog
->RefCount
== 1); /* should only be referenced by hash table */
191 prog
->RefCount
= 0; /* now going away */
192 ctx
->Driver
.DeleteProgram(ctx
, prog
);
198 * Callback for deleting an ATI fragment shader object.
199 * Called by _mesa_HashDeleteAll().
202 delete_fragshader_cb(GLuint id
, void *data
, void *userData
)
204 struct ati_fragment_shader
*shader
= (struct ati_fragment_shader
*) data
;
205 struct gl_context
*ctx
= (struct gl_context
*) userData
;
206 _mesa_delete_ati_fragment_shader(ctx
, shader
);
211 * Callback for deleting a buffer object. Called by _mesa_HashDeleteAll().
214 delete_bufferobj_cb(GLuint id
, void *data
, void *userData
)
216 struct gl_buffer_object
*bufObj
= (struct gl_buffer_object
*) data
;
217 struct gl_context
*ctx
= (struct gl_context
*) userData
;
219 _mesa_buffer_unmap_all_mappings(ctx
, bufObj
);
220 _mesa_reference_buffer_object(ctx
, &bufObj
, NULL
);
225 * Callback for freeing shader program data. Call it before delete_shader_cb
226 * to avoid memory access error.
229 free_shader_program_data_cb(GLuint id
, void *data
, void *userData
)
231 struct gl_context
*ctx
= (struct gl_context
*) userData
;
232 struct gl_shader_program
*shProg
= (struct gl_shader_program
*) data
;
234 if (shProg
->Type
== GL_SHADER_PROGRAM_MESA
) {
235 _mesa_free_shader_program_data(ctx
, shProg
);
241 * Callback for deleting shader and shader programs objects.
242 * Called by _mesa_HashDeleteAll().
245 delete_shader_cb(GLuint id
, void *data
, void *userData
)
247 struct gl_context
*ctx
= (struct gl_context
*) userData
;
248 struct gl_shader
*sh
= (struct gl_shader
*) data
;
249 if (_mesa_validate_shader_target(ctx
, sh
->Type
)) {
250 _mesa_delete_shader(ctx
, sh
);
253 struct gl_shader_program
*shProg
= (struct gl_shader_program
*) data
;
254 assert(shProg
->Type
== GL_SHADER_PROGRAM_MESA
);
255 _mesa_delete_shader_program(ctx
, shProg
);
261 * Callback for deleting a framebuffer object. Called by _mesa_HashDeleteAll()
264 delete_framebuffer_cb(GLuint id
, void *data
, void *userData
)
266 struct gl_framebuffer
*fb
= (struct gl_framebuffer
*) data
;
267 /* The fact that the framebuffer is in the hashtable means its refcount
268 * is one, but we're removing from the hashtable now. So clear refcount.
270 /*assert(fb->RefCount == 1);*/
273 /* NOTE: Delete should always be defined but there are two reports
274 * of it being NULL (bugs 13507, 14293). Work-around for now.
282 * Callback for deleting a renderbuffer object. Called by _mesa_HashDeleteAll()
285 delete_renderbuffer_cb(GLuint id
, void *data
, void *userData
)
287 struct gl_context
*ctx
= (struct gl_context
*) userData
;
288 struct gl_renderbuffer
*rb
= (struct gl_renderbuffer
*) data
;
289 rb
->RefCount
= 0; /* see comment for FBOs above */
296 * Callback for deleting a sampler object. Called by _mesa_HashDeleteAll()
299 delete_sampler_object_cb(GLuint id
, void *data
, void *userData
)
301 struct gl_context
*ctx
= (struct gl_context
*) userData
;
302 struct gl_sampler_object
*sampObj
= (struct gl_sampler_object
*) data
;
303 _mesa_reference_sampler_object(ctx
, &sampObj
, NULL
);
307 * Callback for deleting a memory object. Called by _mesa_HashDeleteAll().
310 delete_memory_object_cb(GLuint id
, void *data
, void *userData
)
312 struct gl_memory_object
*memObj
= (struct gl_memory_object
*) data
;
313 struct gl_context
*ctx
= (struct gl_context
*) userData
;
314 ctx
->Driver
.DeleteMemoryObject(ctx
, memObj
);
318 * Callback for deleting a memory object. Called by _mesa_HashDeleteAll().
321 delete_semaphore_object_cb(GLuint id
, void *data
, void *userData
)
323 struct gl_semaphore_object
*semObj
= (struct gl_semaphore_object
*) data
;
324 struct gl_context
*ctx
= (struct gl_context
*) userData
;
325 ctx
->Driver
.DeleteSemaphoreObject(ctx
, semObj
);
329 * Deallocate a shared state object and all children structures.
331 * \param ctx GL context.
332 * \param shared shared state pointer.
334 * Frees the display lists, the texture objects (calling the driver texture
335 * deletion callback to free its private data) and the vertex programs, as well
336 * as their hash tables.
338 * \sa alloc_shared_state().
341 free_shared_state(struct gl_context
*ctx
, struct gl_shared_state
*shared
)
345 /* Free the dummy/fallback texture objects */
346 for (i
= 0; i
< NUM_TEXTURE_TARGETS
; i
++) {
347 if (shared
->FallbackTex
[i
])
348 ctx
->Driver
.DeleteTexture(ctx
, shared
->FallbackTex
[i
]);
354 if (shared
->DisplayList
) {
355 _mesa_HashDeleteAll(shared
->DisplayList
, delete_displaylist_cb
, ctx
);
356 _mesa_DeleteHashTable(shared
->DisplayList
);
359 if (shared
->BitmapAtlas
) {
360 _mesa_HashDeleteAll(shared
->BitmapAtlas
, delete_bitmap_atlas_cb
, ctx
);
361 _mesa_DeleteHashTable(shared
->BitmapAtlas
);
364 if (shared
->ShaderObjects
) {
365 _mesa_HashWalk(shared
->ShaderObjects
, free_shader_program_data_cb
, ctx
);
366 _mesa_HashDeleteAll(shared
->ShaderObjects
, delete_shader_cb
, ctx
);
367 _mesa_DeleteHashTable(shared
->ShaderObjects
);
370 if (shared
->Programs
) {
371 _mesa_HashDeleteAll(shared
->Programs
, delete_program_cb
, ctx
);
372 _mesa_DeleteHashTable(shared
->Programs
);
375 if (shared
->DefaultVertexProgram
)
376 _mesa_reference_program(ctx
, &shared
->DefaultVertexProgram
, NULL
);
378 if (shared
->DefaultFragmentProgram
)
379 _mesa_reference_program(ctx
, &shared
->DefaultFragmentProgram
, NULL
);
381 if (shared
->DefaultFragmentShader
)
382 _mesa_delete_ati_fragment_shader(ctx
, shared
->DefaultFragmentShader
);
384 if (shared
->ATIShaders
) {
385 _mesa_HashDeleteAll(shared
->ATIShaders
, delete_fragshader_cb
, ctx
);
386 _mesa_DeleteHashTable(shared
->ATIShaders
);
389 if (shared
->BufferObjects
) {
390 _mesa_HashDeleteAll(shared
->BufferObjects
, delete_bufferobj_cb
, ctx
);
391 _mesa_DeleteHashTable(shared
->BufferObjects
);
394 if (shared
->FrameBuffers
) {
395 _mesa_HashDeleteAll(shared
->FrameBuffers
, delete_framebuffer_cb
, ctx
);
396 _mesa_DeleteHashTable(shared
->FrameBuffers
);
399 if (shared
->RenderBuffers
) {
400 _mesa_HashDeleteAll(shared
->RenderBuffers
, delete_renderbuffer_cb
, ctx
);
401 _mesa_DeleteHashTable(shared
->RenderBuffers
);
404 if (shared
->SyncObjects
) {
405 set_foreach(shared
->SyncObjects
, entry
) {
406 _mesa_unref_sync_object(ctx
, (struct gl_sync_object
*) entry
->key
, 1);
409 _mesa_set_destroy(shared
->SyncObjects
, NULL
);
412 if (shared
->SamplerObjects
) {
413 _mesa_HashDeleteAll(shared
->SamplerObjects
, delete_sampler_object_cb
,
415 _mesa_DeleteHashTable(shared
->SamplerObjects
);
419 * Free texture objects (after FBOs since some textures might have
420 * been bound to FBOs).
422 assert(ctx
->Driver
.DeleteTexture
);
423 /* the default textures */
424 for (i
= 0; i
< NUM_TEXTURE_TARGETS
; i
++) {
425 if (shared
->DefaultTex
[i
])
426 ctx
->Driver
.DeleteTexture(ctx
, shared
->DefaultTex
[i
]);
429 /* all other textures */
430 if (shared
->TexObjects
) {
431 _mesa_HashDeleteAll(shared
->TexObjects
, delete_texture_cb
, ctx
);
432 _mesa_DeleteHashTable(shared
->TexObjects
);
435 _mesa_free_shared_handles(shared
);
437 /* ARB_shading_language_include */
438 _mesa_destroy_shader_includes(shared
);
439 mtx_destroy(&shared
->ShaderIncludeMutex
);
441 if (shared
->MemoryObjects
) {
442 _mesa_HashDeleteAll(shared
->MemoryObjects
, delete_memory_object_cb
, ctx
);
443 _mesa_DeleteHashTable(shared
->MemoryObjects
);
446 if (shared
->SemaphoreObjects
) {
447 _mesa_HashDeleteAll(shared
->SemaphoreObjects
, delete_semaphore_object_cb
, ctx
);
448 _mesa_DeleteHashTable(shared
->SemaphoreObjects
);
451 simple_mtx_destroy(&shared
->Mutex
);
452 mtx_destroy(&shared
->TexMutex
);
459 * gl_shared_state objects are ref counted.
460 * If ptr's refcount goes to zero, free the shared state.
463 _mesa_reference_shared_state(struct gl_context
*ctx
,
464 struct gl_shared_state
**ptr
,
465 struct gl_shared_state
*state
)
471 /* unref old state */
472 struct gl_shared_state
*old
= *ptr
;
475 simple_mtx_lock(&old
->Mutex
);
476 assert(old
->RefCount
>= 1);
478 delete = (old
->RefCount
== 0);
479 simple_mtx_unlock(&old
->Mutex
);
482 free_shared_state(ctx
, old
);
489 /* reference new state */
490 simple_mtx_lock(&state
->Mutex
);
493 simple_mtx_unlock(&state
->Mutex
);