2 * Mesa 3-D graphics library
5 * Copyright (C) 2009 VMware, Inc. All Rights Reserved.
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the "Software"),
9 * to deal in the Software without restriction, including without limitation
10 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
11 * and/or sell copies of the Software, and to permit persons to whom the
12 * Software is furnished to do so, subject to the following conditions:
14 * The above copyright notice and this permission notice shall be included
15 * in all copies or substantial portions of the Software.
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
21 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
22 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
27 * Shared-context state
31 #include "mfeatures.h"
34 #if FEATURE_ATI_fragment_shader
35 #include "atifragshader.h"
37 #include "bufferobj.h"
39 #include "program/program.h"
41 #if FEATURE_ARB_sampler_objects
42 #include "samplerobj.h"
44 #include "shaderobj.h"
49 * Allocate and initialize a shared context state structure.
50 * Initializes the display list, texture objects and vertex programs hash
51 * tables, allocates the texture objects. If it runs out of memory, frees
52 * everything already allocated before returning NULL.
54 * \return pointer to a gl_shared_state structure on success, or NULL on
57 struct gl_shared_state
*
58 _mesa_alloc_shared_state(struct gl_context
*ctx
)
60 struct gl_shared_state
*shared
;
63 shared
= CALLOC_STRUCT(gl_shared_state
);
67 _glthread_INIT_MUTEX(shared
->Mutex
);
69 shared
->DisplayList
= _mesa_NewHashTable();
70 shared
->TexObjects
= _mesa_NewHashTable();
71 shared
->Programs
= _mesa_NewHashTable();
73 #if FEATURE_ARB_vertex_program
74 shared
->DefaultVertexProgram
= (struct gl_vertex_program
*)
75 ctx
->Driver
.NewProgram(ctx
, GL_VERTEX_PROGRAM_ARB
, 0);
78 #if FEATURE_ARB_fragment_program
79 shared
->DefaultFragmentProgram
= (struct gl_fragment_program
*)
80 ctx
->Driver
.NewProgram(ctx
, GL_FRAGMENT_PROGRAM_ARB
, 0);
83 #if FEATURE_ATI_fragment_shader
84 shared
->ATIShaders
= _mesa_NewHashTable();
85 shared
->DefaultFragmentShader
= _mesa_new_ati_fragment_shader(ctx
, 0);
88 #if FEATURE_ARB_shader_objects
89 shared
->ShaderObjects
= _mesa_NewHashTable();
92 #if FEATURE_ARB_vertex_buffer_object || FEATURE_ARB_pixel_buffer_object
93 shared
->BufferObjects
= _mesa_NewHashTable();
96 #if FEATURE_ARB_sampler_objects
97 /* GL_ARB_sampler_objects */
98 shared
->SamplerObjects
= _mesa_NewHashTable();
101 /* Allocate the default buffer object */
102 shared
->NullBufferObj
= ctx
->Driver
.NewBufferObject(ctx
, 0, 0);
104 /* Create default texture objects */
105 for (i
= 0; i
< NUM_TEXTURE_TARGETS
; i
++) {
106 /* NOTE: the order of these enums matches the TEXTURE_x_INDEX values */
107 static const GLenum targets
[NUM_TEXTURE_TARGETS
] = {
109 GL_TEXTURE_2D_ARRAY_EXT
,
110 GL_TEXTURE_1D_ARRAY_EXT
,
111 GL_TEXTURE_EXTERNAL_OES
,
114 GL_TEXTURE_RECTANGLE_NV
,
118 assert(Elements(targets
) == NUM_TEXTURE_TARGETS
);
119 shared
->DefaultTex
[i
] = ctx
->Driver
.NewTextureObject(ctx
, 0, targets
[i
]);
123 assert(shared
->DefaultTex
[TEXTURE_1D_INDEX
]->RefCount
== 1);
125 /* Mutex and timestamp for texobj state validation */
126 _glthread_INIT_MUTEX(shared
->TexMutex
);
127 shared
->TextureStateStamp
= 0;
129 #if FEATURE_EXT_framebuffer_object
130 shared
->FrameBuffers
= _mesa_NewHashTable();
131 shared
->RenderBuffers
= _mesa_NewHashTable();
134 make_empty_list(& shared
->SyncObjects
);
141 * Callback for deleting a display list. Called by _mesa_HashDeleteAll().
144 delete_displaylist_cb(GLuint id
, void *data
, void *userData
)
146 struct gl_display_list
*list
= (struct gl_display_list
*) data
;
147 struct gl_context
*ctx
= (struct gl_context
*) userData
;
148 _mesa_delete_list(ctx
, list
);
153 * Callback for deleting a texture object. Called by _mesa_HashDeleteAll().
156 delete_texture_cb(GLuint id
, void *data
, void *userData
)
158 struct gl_texture_object
*texObj
= (struct gl_texture_object
*) data
;
159 struct gl_context
*ctx
= (struct gl_context
*) userData
;
160 ctx
->Driver
.DeleteTexture(ctx
, texObj
);
165 * Callback for deleting a program object. Called by _mesa_HashDeleteAll().
168 delete_program_cb(GLuint id
, void *data
, void *userData
)
170 struct gl_program
*prog
= (struct gl_program
*) data
;
171 struct gl_context
*ctx
= (struct gl_context
*) userData
;
172 if(prog
!= &_mesa_DummyProgram
) {
173 ASSERT(prog
->RefCount
== 1); /* should only be referenced by hash table */
174 prog
->RefCount
= 0; /* now going away */
175 ctx
->Driver
.DeleteProgram(ctx
, prog
);
180 #if FEATURE_ATI_fragment_shader
182 * Callback for deleting an ATI fragment shader object.
183 * Called by _mesa_HashDeleteAll().
186 delete_fragshader_cb(GLuint id
, void *data
, void *userData
)
188 struct ati_fragment_shader
*shader
= (struct ati_fragment_shader
*) data
;
189 struct gl_context
*ctx
= (struct gl_context
*) userData
;
190 _mesa_delete_ati_fragment_shader(ctx
, shader
);
196 * Callback for deleting a buffer object. Called by _mesa_HashDeleteAll().
199 delete_bufferobj_cb(GLuint id
, void *data
, void *userData
)
201 struct gl_buffer_object
*bufObj
= (struct gl_buffer_object
*) data
;
202 struct gl_context
*ctx
= (struct gl_context
*) userData
;
203 if (_mesa_bufferobj_mapped(bufObj
)) {
204 ctx
->Driver
.UnmapBuffer(ctx
, bufObj
);
205 bufObj
->Pointer
= NULL
;
207 _mesa_reference_buffer_object(ctx
, &bufObj
, NULL
);
212 * Callback for freeing shader program data. Call it before delete_shader_cb
213 * to avoid memory access error.
216 free_shader_program_data_cb(GLuint id
, void *data
, void *userData
)
218 struct gl_context
*ctx
= (struct gl_context
*) userData
;
219 struct gl_shader_program
*shProg
= (struct gl_shader_program
*) data
;
221 if (shProg
->Type
== GL_SHADER_PROGRAM_MESA
) {
222 _mesa_free_shader_program_data(ctx
, shProg
);
228 * Callback for deleting shader and shader programs objects.
229 * Called by _mesa_HashDeleteAll().
232 delete_shader_cb(GLuint id
, void *data
, void *userData
)
234 struct gl_context
*ctx
= (struct gl_context
*) userData
;
235 struct gl_shader
*sh
= (struct gl_shader
*) data
;
236 if (sh
->Type
== GL_FRAGMENT_SHADER
|| sh
->Type
== GL_VERTEX_SHADER
) {
237 ctx
->Driver
.DeleteShader(ctx
, sh
);
240 struct gl_shader_program
*shProg
= (struct gl_shader_program
*) data
;
241 ASSERT(shProg
->Type
== GL_SHADER_PROGRAM_MESA
);
242 ctx
->Driver
.DeleteShaderProgram(ctx
, shProg
);
248 * Callback for deleting a framebuffer object. Called by _mesa_HashDeleteAll()
251 delete_framebuffer_cb(GLuint id
, void *data
, void *userData
)
253 struct gl_framebuffer
*fb
= (struct gl_framebuffer
*) data
;
254 /* The fact that the framebuffer is in the hashtable means its refcount
255 * is one, but we're removing from the hashtable now. So clear refcount.
257 /*assert(fb->RefCount == 1);*/
260 /* NOTE: Delete should always be defined but there are two reports
261 * of it being NULL (bugs 13507, 14293). Work-around for now.
269 * Callback for deleting a renderbuffer object. Called by _mesa_HashDeleteAll()
272 delete_renderbuffer_cb(GLuint id
, void *data
, void *userData
)
274 struct gl_renderbuffer
*rb
= (struct gl_renderbuffer
*) data
;
275 rb
->RefCount
= 0; /* see comment for FBOs above */
281 #if FEATURE_ARB_sampler_objects
283 * Callback for deleting a sampler object. Called by _mesa_HashDeleteAll()
286 delete_sampler_object_cb(GLuint id
, void *data
, void *userData
)
288 struct gl_context
*ctx
= (struct gl_context
*) userData
;
289 struct gl_sampler_object
*sampObj
= (struct gl_sampler_object
*) data
;
290 _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 object */
313 if (shared
->FallbackTex
)
314 ctx
->Driver
.DeleteTexture(ctx
, shared
->FallbackTex
);
319 _mesa_HashDeleteAll(shared
->DisplayList
, delete_displaylist_cb
, ctx
);
320 _mesa_DeleteHashTable(shared
->DisplayList
);
322 #if FEATURE_ARB_shader_objects
323 _mesa_HashWalk(shared
->ShaderObjects
, free_shader_program_data_cb
, ctx
);
324 _mesa_HashDeleteAll(shared
->ShaderObjects
, delete_shader_cb
, ctx
);
325 _mesa_DeleteHashTable(shared
->ShaderObjects
);
328 _mesa_HashDeleteAll(shared
->Programs
, delete_program_cb
, ctx
);
329 _mesa_DeleteHashTable(shared
->Programs
);
331 #if FEATURE_ARB_vertex_program
332 _mesa_reference_vertprog(ctx
, &shared
->DefaultVertexProgram
, NULL
);
335 #if FEATURE_ARB_fragment_program
336 _mesa_reference_fragprog(ctx
, &shared
->DefaultFragmentProgram
, NULL
);
339 #if FEATURE_ATI_fragment_shader
340 _mesa_HashDeleteAll(shared
->ATIShaders
, delete_fragshader_cb
, ctx
);
341 _mesa_DeleteHashTable(shared
->ATIShaders
);
342 _mesa_delete_ati_fragment_shader(ctx
, shared
->DefaultFragmentShader
);
345 #if FEATURE_ARB_vertex_buffer_object || FEATURE_ARB_pixel_buffer_object
346 _mesa_HashDeleteAll(shared
->BufferObjects
, delete_bufferobj_cb
, ctx
);
347 _mesa_DeleteHashTable(shared
->BufferObjects
);
350 #if FEATURE_EXT_framebuffer_object
351 _mesa_HashDeleteAll(shared
->FrameBuffers
, delete_framebuffer_cb
, ctx
);
352 _mesa_DeleteHashTable(shared
->FrameBuffers
);
353 _mesa_HashDeleteAll(shared
->RenderBuffers
, delete_renderbuffer_cb
, ctx
);
354 _mesa_DeleteHashTable(shared
->RenderBuffers
);
357 #if FEATURE_ARB_vertex_buffer_object
358 _mesa_reference_buffer_object(ctx
, &shared
->NullBufferObj
, NULL
);
362 struct simple_node
*node
;
363 struct simple_node
*temp
;
365 foreach_s(node
, temp
, & shared
->SyncObjects
) {
366 _mesa_unref_sync_object(ctx
, (struct gl_sync_object
*) node
);
370 #if FEATURE_ARB_sampler_objects
371 _mesa_HashDeleteAll(shared
->SamplerObjects
, delete_sampler_object_cb
, ctx
);
372 _mesa_DeleteHashTable(shared
->SamplerObjects
);
376 * Free texture objects (after FBOs since some textures might have
377 * been bound to FBOs).
379 ASSERT(ctx
->Driver
.DeleteTexture
);
380 /* the default textures */
381 for (i
= 0; i
< NUM_TEXTURE_TARGETS
; i
++) {
382 ctx
->Driver
.DeleteTexture(ctx
, shared
->DefaultTex
[i
]);
385 /* all other textures */
386 _mesa_HashDeleteAll(shared
->TexObjects
, delete_texture_cb
, ctx
);
387 _mesa_DeleteHashTable(shared
->TexObjects
);
389 _glthread_DESTROY_MUTEX(shared
->Mutex
);
390 _glthread_DESTROY_MUTEX(shared
->TexMutex
);
397 * Decrement shared state object reference count and potentially free it
398 * and all children structures.
400 * \param ctx GL context.
401 * \param shared shared state pointer.
403 * \sa free_shared_state().
406 _mesa_release_shared_state(struct gl_context
*ctx
,
407 struct gl_shared_state
*shared
)
411 _glthread_LOCK_MUTEX(shared
->Mutex
);
412 RefCount
= --shared
->RefCount
;
413 _glthread_UNLOCK_MUTEX(shared
->Mutex
);
415 assert(RefCount
>= 0);
418 /* free shared state */
419 free_shared_state( ctx
, shared
);