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
36 #include "bufferobj.h"
38 #include "shader/program.h"
39 #include "shader/shader_api.h"
43 #if FEATURE_ATI_fragment_shader
44 #include "shader/atifragshader.h"
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(GLcontext
*ctx
)
62 struct gl_shared_state
*shared
;
65 shared
= CALLOC_STRUCT(gl_shared_state
);
69 _glthread_INIT_MUTEX(shared
->Mutex
);
71 shared
->DisplayList
= _mesa_NewHashTable();
72 shared
->TexObjects
= _mesa_NewHashTable();
73 shared
->Programs
= _mesa_NewHashTable();
75 #if FEATURE_ARB_vertex_program
76 shared
->DefaultVertexProgram
= (struct gl_vertex_program
*)
77 ctx
->Driver
.NewProgram(ctx
, GL_VERTEX_PROGRAM_ARB
, 0);
80 #if FEATURE_ARB_fragment_program
81 shared
->DefaultFragmentProgram
= (struct gl_fragment_program
*)
82 ctx
->Driver
.NewProgram(ctx
, GL_FRAGMENT_PROGRAM_ARB
, 0);
85 #if FEATURE_ATI_fragment_shader
86 shared
->ATIShaders
= _mesa_NewHashTable();
87 shared
->DefaultFragmentShader
= _mesa_new_ati_fragment_shader(ctx
, 0);
90 #if FEATURE_ARB_shader_objects
91 shared
->ShaderObjects
= _mesa_NewHashTable();
94 #if FEATURE_ARB_vertex_buffer_object || FEATURE_ARB_pixel_buffer_object
95 shared
->BufferObjects
= _mesa_NewHashTable();
98 /* Allocate the default buffer object and set refcount so high that
99 * it never gets deleted.
100 * XXX with recent/improved refcounting this may not longer be needed.
102 shared
->NullBufferObj
= ctx
->Driver
.NewBufferObject(ctx
, 0, 0);
103 shared
->NullBufferObj
->RefCount
= 1000 * 1000 * 1000;
105 /* Create default texture objects */
106 for (i
= 0; i
< NUM_TEXTURE_TARGETS
; i
++) {
107 /* NOTE: the order of these enums matches the TEXTURE_x_INDEX values */
108 static const GLenum targets
[NUM_TEXTURE_TARGETS
] = {
109 GL_TEXTURE_2D_ARRAY_EXT
,
110 GL_TEXTURE_1D_ARRAY_EXT
,
113 GL_TEXTURE_RECTANGLE_NV
,
117 shared
->DefaultTex
[i
] = ctx
->Driver
.NewTextureObject(ctx
, 0, targets
[i
]);
121 assert(shared
->DefaultTex
[TEXTURE_1D_INDEX
]->RefCount
== 1);
123 /* Mutex and timestamp for texobj state validation */
124 _glthread_INIT_MUTEX(shared
->TexMutex
);
125 shared
->TextureStateStamp
= 0;
127 #if FEATURE_EXT_framebuffer_object
128 shared
->FrameBuffers
= _mesa_NewHashTable();
129 shared
->RenderBuffers
= _mesa_NewHashTable();
133 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
)
147 struct gl_display_list
*list
= (struct gl_display_list
*) data
;
148 GLcontext
*ctx
= (GLcontext
*) userData
;
149 _mesa_delete_list(ctx
, list
);
155 * Callback for deleting a texture object. Called by _mesa_HashDeleteAll().
158 delete_texture_cb(GLuint id
, void *data
, void *userData
)
160 struct gl_texture_object
*texObj
= (struct gl_texture_object
*) data
;
161 GLcontext
*ctx
= (GLcontext
*) userData
;
162 ctx
->Driver
.DeleteTexture(ctx
, texObj
);
167 * Callback for deleting a program object. Called by _mesa_HashDeleteAll().
170 delete_program_cb(GLuint id
, void *data
, void *userData
)
172 struct gl_program
*prog
= (struct gl_program
*) data
;
173 GLcontext
*ctx
= (GLcontext
*) userData
;
174 if(prog
!= &_mesa_DummyProgram
) {
175 ASSERT(prog
->RefCount
== 1); /* should only be referenced by hash table */
176 prog
->RefCount
= 0; /* now going away */
177 ctx
->Driver
.DeleteProgram(ctx
, prog
);
182 #if FEATURE_ATI_fragment_shader
184 * Callback for deleting an ATI fragment shader object.
185 * Called by _mesa_HashDeleteAll().
188 delete_fragshader_cb(GLuint id
, void *data
, void *userData
)
190 struct ati_fragment_shader
*shader
= (struct ati_fragment_shader
*) data
;
191 GLcontext
*ctx
= (GLcontext
*) userData
;
192 _mesa_delete_ati_fragment_shader(ctx
, shader
);
198 * Callback for deleting a buffer object. Called by _mesa_HashDeleteAll().
201 delete_bufferobj_cb(GLuint id
, void *data
, void *userData
)
203 struct gl_buffer_object
*bufObj
= (struct gl_buffer_object
*) data
;
204 GLcontext
*ctx
= (GLcontext
*) userData
;
205 if (_mesa_bufferobj_mapped(bufObj
)) {
206 ctx
->Driver
.UnmapBuffer(ctx
, 0, bufObj
);
207 bufObj
->Pointer
= NULL
;
209 ctx
->Driver
.DeleteBuffer(ctx
, bufObj
);
214 * Callback for freeing shader program data. Call it before delete_shader_cb
215 * to avoid memory access error.
218 free_shader_program_data_cb(GLuint id
, void *data
, void *userData
)
220 GLcontext
*ctx
= (GLcontext
*) userData
;
221 struct gl_shader_program
*shProg
= (struct gl_shader_program
*) data
;
223 if (shProg
->Type
== GL_SHADER_PROGRAM_MESA
) {
224 _mesa_free_shader_program_data(ctx
, shProg
);
230 * Callback for deleting shader and shader programs objects.
231 * Called by _mesa_HashDeleteAll().
234 delete_shader_cb(GLuint id
, void *data
, void *userData
)
236 GLcontext
*ctx
= (GLcontext
*) userData
;
237 struct gl_shader
*sh
= (struct gl_shader
*) data
;
238 if (sh
->Type
== GL_FRAGMENT_SHADER
|| sh
->Type
== GL_VERTEX_SHADER
) {
239 _mesa_free_shader(ctx
, sh
);
242 struct gl_shader_program
*shProg
= (struct gl_shader_program
*) data
;
243 ASSERT(shProg
->Type
== GL_SHADER_PROGRAM_MESA
);
244 _mesa_free_shader_program(ctx
, shProg
);
250 * Callback for deleting a framebuffer object. Called by _mesa_HashDeleteAll()
253 delete_framebuffer_cb(GLuint id
, void *data
, void *userData
)
255 struct gl_framebuffer
*fb
= (struct gl_framebuffer
*) data
;
256 /* The fact that the framebuffer is in the hashtable means its refcount
257 * is one, but we're removing from the hashtable now. So clear refcount.
259 /*assert(fb->RefCount == 1);*/
262 /* NOTE: Delete should always be defined but there are two reports
263 * of it being NULL (bugs 13507, 14293). Work-around for now.
271 * Callback for deleting a renderbuffer object. Called by _mesa_HashDeleteAll()
274 delete_renderbuffer_cb(GLuint id
, void *data
, void *userData
)
276 struct gl_renderbuffer
*rb
= (struct gl_renderbuffer
*) data
;
277 rb
->RefCount
= 0; /* see comment for FBOs above */
284 * Deallocate a shared state object and all children structures.
286 * \param ctx GL context.
287 * \param shared shared state pointer.
289 * Frees the display lists, the texture objects (calling the driver texture
290 * deletion callback to free its private data) and the vertex programs, as well
291 * as their hash tables.
293 * \sa alloc_shared_state().
296 _mesa_free_shared_state(GLcontext
*ctx
, struct gl_shared_state
*shared
)
303 _mesa_HashDeleteAll(shared
->DisplayList
, delete_displaylist_cb
, ctx
);
304 _mesa_DeleteHashTable(shared
->DisplayList
);
306 #if FEATURE_ARB_shader_objects
307 _mesa_HashWalk(shared
->ShaderObjects
, free_shader_program_data_cb
, ctx
);
308 _mesa_HashDeleteAll(shared
->ShaderObjects
, delete_shader_cb
, ctx
);
309 _mesa_DeleteHashTable(shared
->ShaderObjects
);
312 _mesa_HashDeleteAll(shared
->Programs
, delete_program_cb
, ctx
);
313 _mesa_DeleteHashTable(shared
->Programs
);
315 #if FEATURE_ARB_vertex_program
316 _mesa_reference_vertprog(ctx
, &shared
->DefaultVertexProgram
, NULL
);
319 #if FEATURE_ARB_fragment_program
320 _mesa_reference_fragprog(ctx
, &shared
->DefaultFragmentProgram
, NULL
);
323 #if FEATURE_ATI_fragment_shader
324 _mesa_HashDeleteAll(shared
->ATIShaders
, delete_fragshader_cb
, ctx
);
325 _mesa_DeleteHashTable(shared
->ATIShaders
);
326 _mesa_delete_ati_fragment_shader(ctx
, shared
->DefaultFragmentShader
);
329 #if FEATURE_ARB_vertex_buffer_object || FEATURE_ARB_pixel_buffer_object
330 _mesa_HashDeleteAll(shared
->BufferObjects
, delete_bufferobj_cb
, ctx
);
331 _mesa_DeleteHashTable(shared
->BufferObjects
);
334 #if FEATURE_EXT_framebuffer_object
335 _mesa_HashDeleteAll(shared
->FrameBuffers
, delete_framebuffer_cb
, ctx
);
336 _mesa_DeleteHashTable(shared
->FrameBuffers
);
337 _mesa_HashDeleteAll(shared
->RenderBuffers
, delete_renderbuffer_cb
, ctx
);
338 _mesa_DeleteHashTable(shared
->RenderBuffers
);
341 #if FEATURE_ARB_vertex_buffer_object
342 ctx
->Driver
.DeleteBuffer(ctx
, shared
->NullBufferObj
);
347 struct simple_node
*node
;
348 struct simple_node
*temp
;
350 foreach_s(node
, temp
, & shared
->SyncObjects
) {
351 _mesa_unref_sync_object(ctx
, (struct gl_sync_object
*) node
);
357 * Free texture objects (after FBOs since some textures might have
358 * been bound to FBOs).
360 ASSERT(ctx
->Driver
.DeleteTexture
);
361 /* the default textures */
362 for (i
= 0; i
< NUM_TEXTURE_TARGETS
; i
++) {
363 ctx
->Driver
.DeleteTexture(ctx
, shared
->DefaultTex
[i
]);
366 /* all other textures */
367 _mesa_HashDeleteAll(shared
->TexObjects
, delete_texture_cb
, ctx
);
368 _mesa_DeleteHashTable(shared
->TexObjects
);
370 _glthread_DESTROY_MUTEX(shared
->Mutex
);
371 _glthread_DESTROY_MUTEX(shared
->TexMutex
);