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"
43 #include "util/hash_table.h"
47 * Allocate and initialize a shared context state structure.
48 * Initializes the display list, texture objects and vertex programs hash
49 * tables, allocates the texture objects. If it runs out of memory, frees
50 * everything already allocated before returning NULL.
52 * \return pointer to a gl_shared_state structure on success, or NULL on
55 struct gl_shared_state
*
56 _mesa_alloc_shared_state(struct gl_context
*ctx
)
58 struct gl_shared_state
*shared
;
61 shared
= CALLOC_STRUCT(gl_shared_state
);
65 mtx_init(&shared
->Mutex
, mtx_plain
);
67 shared
->DisplayList
= _mesa_NewHashTable();
68 shared
->BitmapAtlas
= _mesa_NewHashTable();
69 shared
->TexObjects
= _mesa_NewHashTable();
70 shared
->Programs
= _mesa_NewHashTable();
72 shared
->DefaultVertexProgram
=
73 ctx
->Driver
.NewProgram(ctx
, GL_VERTEX_PROGRAM_ARB
, 0);
74 shared
->DefaultFragmentProgram
=
75 ctx
->Driver
.NewProgram(ctx
, GL_FRAGMENT_PROGRAM_ARB
, 0);
77 shared
->ATIShaders
= _mesa_NewHashTable();
78 shared
->DefaultFragmentShader
= _mesa_new_ati_fragment_shader(ctx
, 0);
80 shared
->ShaderObjects
= _mesa_NewHashTable();
82 shared
->BufferObjects
= _mesa_NewHashTable();
84 /* GL_ARB_sampler_objects */
85 shared
->SamplerObjects
= _mesa_NewHashTable();
87 /* Allocate the default buffer object */
88 shared
->NullBufferObj
= ctx
->Driver
.NewBufferObject(ctx
, 0);
90 /* Create default texture objects */
91 for (i
= 0; i
< NUM_TEXTURE_TARGETS
; i
++) {
92 /* NOTE: the order of these enums matches the TEXTURE_x_INDEX values */
93 static const GLenum targets
[] = {
94 GL_TEXTURE_2D_MULTISAMPLE
,
95 GL_TEXTURE_2D_MULTISAMPLE_ARRAY
,
96 GL_TEXTURE_CUBE_MAP_ARRAY
,
98 GL_TEXTURE_2D_ARRAY_EXT
,
99 GL_TEXTURE_1D_ARRAY_EXT
,
100 GL_TEXTURE_EXTERNAL_OES
,
103 GL_TEXTURE_RECTANGLE_NV
,
107 STATIC_ASSERT(ARRAY_SIZE(targets
) == NUM_TEXTURE_TARGETS
);
108 shared
->DefaultTex
[i
] = ctx
->Driver
.NewTextureObject(ctx
, 0, targets
[i
]);
109 /* Need to explicitly set/overwrite the TargetIndex field here since
110 * the call to _mesa_tex_target_to_index() in NewTextureObject() may
111 * fail if the texture target is not supported.
113 shared
->DefaultTex
[i
]->TargetIndex
= i
;
117 assert(shared
->DefaultTex
[TEXTURE_1D_INDEX
]->RefCount
== 1);
119 /* Mutex and timestamp for texobj state validation */
120 mtx_init(&shared
->TexMutex
, mtx_recursive
);
121 shared
->TextureStateStamp
= 0;
123 shared
->FrameBuffers
= _mesa_NewHashTable();
124 shared
->RenderBuffers
= _mesa_NewHashTable();
126 shared
->SyncObjects
= _mesa_set_create(NULL
, _mesa_hash_pointer
,
127 _mesa_key_pointer_equal
);
134 * Callback for deleting a display list. Called by _mesa_HashDeleteAll().
137 delete_displaylist_cb(GLuint id
, void *data
, void *userData
)
139 struct gl_display_list
*list
= (struct gl_display_list
*) data
;
140 struct gl_context
*ctx
= (struct gl_context
*) userData
;
141 _mesa_delete_list(ctx
, list
);
146 * Callback for deleting a bitmap atlas. Called by _mesa_HashDeleteAll().
149 delete_bitmap_atlas_cb(GLuint id
, void *data
, void *userData
)
151 struct gl_bitmap_atlas
*atlas
= (struct gl_bitmap_atlas
*) data
;
152 struct gl_context
*ctx
= (struct gl_context
*) userData
;
153 _mesa_delete_bitmap_atlas(ctx
, atlas
);
158 * Callback for deleting a texture object. Called by _mesa_HashDeleteAll().
161 delete_texture_cb(GLuint id
, void *data
, void *userData
)
163 struct gl_texture_object
*texObj
= (struct gl_texture_object
*) data
;
164 struct gl_context
*ctx
= (struct gl_context
*) userData
;
165 ctx
->Driver
.DeleteTexture(ctx
, texObj
);
170 * Callback for deleting a program object. Called by _mesa_HashDeleteAll().
173 delete_program_cb(GLuint id
, void *data
, void *userData
)
175 struct gl_program
*prog
= (struct gl_program
*) data
;
176 struct gl_context
*ctx
= (struct gl_context
*) userData
;
177 if(prog
!= &_mesa_DummyProgram
) {
178 assert(prog
->RefCount
== 1); /* should only be referenced by hash table */
179 prog
->RefCount
= 0; /* now going away */
180 ctx
->Driver
.DeleteProgram(ctx
, prog
);
186 * Callback for deleting an ATI fragment shader object.
187 * Called by _mesa_HashDeleteAll().
190 delete_fragshader_cb(GLuint id
, void *data
, void *userData
)
192 struct ati_fragment_shader
*shader
= (struct ati_fragment_shader
*) data
;
193 struct gl_context
*ctx
= (struct gl_context
*) userData
;
194 _mesa_delete_ati_fragment_shader(ctx
, shader
);
199 * Callback for deleting a buffer object. Called by _mesa_HashDeleteAll().
202 delete_bufferobj_cb(GLuint id
, void *data
, void *userData
)
204 struct gl_buffer_object
*bufObj
= (struct gl_buffer_object
*) data
;
205 struct gl_context
*ctx
= (struct gl_context
*) userData
;
207 _mesa_buffer_unmap_all_mappings(ctx
, bufObj
);
208 _mesa_reference_buffer_object(ctx
, &bufObj
, NULL
);
213 * Callback for freeing shader program data. Call it before delete_shader_cb
214 * to avoid memory access error.
217 free_shader_program_data_cb(GLuint id
, void *data
, void *userData
)
219 struct gl_context
*ctx
= (struct gl_context
*) userData
;
220 struct gl_shader_program
*shProg
= (struct gl_shader_program
*) data
;
222 if (shProg
->Type
== GL_SHADER_PROGRAM_MESA
) {
223 _mesa_free_shader_program_data(ctx
, shProg
);
229 * Callback for deleting shader and shader programs objects.
230 * Called by _mesa_HashDeleteAll().
233 delete_shader_cb(GLuint id
, void *data
, void *userData
)
235 struct gl_context
*ctx
= (struct gl_context
*) userData
;
236 struct gl_shader
*sh
= (struct gl_shader
*) data
;
237 if (_mesa_validate_shader_target(ctx
, sh
->Type
)) {
238 _mesa_delete_shader(ctx
, sh
);
241 struct gl_shader_program
*shProg
= (struct gl_shader_program
*) data
;
242 assert(shProg
->Type
== GL_SHADER_PROGRAM_MESA
);
243 _mesa_delete_shader_program(ctx
, shProg
);
249 * Callback for deleting a framebuffer object. Called by _mesa_HashDeleteAll()
252 delete_framebuffer_cb(GLuint id
, void *data
, void *userData
)
254 struct gl_framebuffer
*fb
= (struct gl_framebuffer
*) data
;
255 /* The fact that the framebuffer is in the hashtable means its refcount
256 * is one, but we're removing from the hashtable now. So clear refcount.
258 /*assert(fb->RefCount == 1);*/
261 /* NOTE: Delete should always be defined but there are two reports
262 * of it being NULL (bugs 13507, 14293). Work-around for now.
270 * Callback for deleting a renderbuffer object. Called by _mesa_HashDeleteAll()
273 delete_renderbuffer_cb(GLuint id
, void *data
, void *userData
)
275 struct gl_context
*ctx
= (struct gl_context
*) userData
;
276 struct gl_renderbuffer
*rb
= (struct gl_renderbuffer
*) data
;
277 rb
->RefCount
= 0; /* see comment for FBOs above */
284 * Callback for deleting a sampler object. Called by _mesa_HashDeleteAll()
287 delete_sampler_object_cb(GLuint id
, void *data
, void *userData
)
289 struct gl_context
*ctx
= (struct gl_context
*) userData
;
290 struct gl_sampler_object
*sampObj
= (struct gl_sampler_object
*) data
;
291 _mesa_reference_sampler_object(ctx
, &sampObj
, NULL
);
296 * Deallocate a shared state object and all children structures.
298 * \param ctx GL context.
299 * \param shared shared state pointer.
301 * Frees the display lists, the texture objects (calling the driver texture
302 * deletion callback to free its private data) and the vertex programs, as well
303 * as their hash tables.
305 * \sa alloc_shared_state().
308 free_shared_state(struct gl_context
*ctx
, struct gl_shared_state
*shared
)
312 /* Free the dummy/fallback texture objects */
313 for (i
= 0; i
< NUM_TEXTURE_TARGETS
; i
++) {
314 if (shared
->FallbackTex
[i
])
315 ctx
->Driver
.DeleteTexture(ctx
, shared
->FallbackTex
[i
]);
321 _mesa_HashDeleteAll(shared
->DisplayList
, delete_displaylist_cb
, ctx
);
322 _mesa_DeleteHashTable(shared
->DisplayList
);
323 _mesa_HashDeleteAll(shared
->BitmapAtlas
, delete_bitmap_atlas_cb
, ctx
);
324 _mesa_DeleteHashTable(shared
->BitmapAtlas
);
326 _mesa_HashWalk(shared
->ShaderObjects
, free_shader_program_data_cb
, ctx
);
327 _mesa_HashDeleteAll(shared
->ShaderObjects
, delete_shader_cb
, ctx
);
328 _mesa_DeleteHashTable(shared
->ShaderObjects
);
330 _mesa_HashDeleteAll(shared
->Programs
, delete_program_cb
, ctx
);
331 _mesa_DeleteHashTable(shared
->Programs
);
333 _mesa_reference_program(ctx
, &shared
->DefaultVertexProgram
, NULL
);
334 _mesa_reference_program(ctx
, &shared
->DefaultFragmentProgram
, NULL
);
336 _mesa_HashDeleteAll(shared
->ATIShaders
, delete_fragshader_cb
, ctx
);
337 _mesa_DeleteHashTable(shared
->ATIShaders
);
338 _mesa_delete_ati_fragment_shader(ctx
, shared
->DefaultFragmentShader
);
340 _mesa_HashDeleteAll(shared
->BufferObjects
, delete_bufferobj_cb
, ctx
);
341 _mesa_DeleteHashTable(shared
->BufferObjects
);
343 _mesa_HashDeleteAll(shared
->FrameBuffers
, delete_framebuffer_cb
, ctx
);
344 _mesa_DeleteHashTable(shared
->FrameBuffers
);
345 _mesa_HashDeleteAll(shared
->RenderBuffers
, delete_renderbuffer_cb
, ctx
);
346 _mesa_DeleteHashTable(shared
->RenderBuffers
);
348 _mesa_reference_buffer_object(ctx
, &shared
->NullBufferObj
, NULL
);
351 struct set_entry
*entry
;
353 set_foreach(shared
->SyncObjects
, entry
) {
354 _mesa_unref_sync_object(ctx
, (struct gl_sync_object
*) entry
->key
, 1);
357 _mesa_set_destroy(shared
->SyncObjects
, NULL
);
359 _mesa_HashDeleteAll(shared
->SamplerObjects
, delete_sampler_object_cb
, ctx
);
360 _mesa_DeleteHashTable(shared
->SamplerObjects
);
363 * Free texture objects (after FBOs since some textures might have
364 * been bound to FBOs).
366 assert(ctx
->Driver
.DeleteTexture
);
367 /* the default textures */
368 for (i
= 0; i
< NUM_TEXTURE_TARGETS
; i
++) {
369 ctx
->Driver
.DeleteTexture(ctx
, shared
->DefaultTex
[i
]);
372 /* all other textures */
373 _mesa_HashDeleteAll(shared
->TexObjects
, delete_texture_cb
, ctx
);
374 _mesa_DeleteHashTable(shared
->TexObjects
);
376 mtx_destroy(&shared
->Mutex
);
377 mtx_destroy(&shared
->TexMutex
);
384 * gl_shared_state objects are ref counted.
385 * If ptr's refcount goes to zero, free the shared state.
388 _mesa_reference_shared_state(struct gl_context
*ctx
,
389 struct gl_shared_state
**ptr
,
390 struct gl_shared_state
*state
)
396 /* unref old state */
397 struct gl_shared_state
*old
= *ptr
;
400 mtx_lock(&old
->Mutex
);
401 assert(old
->RefCount
>= 1);
403 delete = (old
->RefCount
== 0);
404 mtx_unlock(&old
->Mutex
);
407 free_shared_state(ctx
, old
);
414 /* reference new state */
415 mtx_lock(&state
->Mutex
);
418 mtx_unlock(&state
->Mutex
);