2 * Mesa 3-D graphics library
4 * Copyright (C) 2004-2008 Brian Paul All Rights Reserved.
5 * Copyright (C) 2009-2010 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 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
21 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
22 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
23 * OTHER DEALINGS IN THE SOFTWARE.
33 #include "main/glheader.h"
34 #include "main/context.h"
35 #include "main/hash.h"
36 #include "main/mtypes.h"
37 #include "main/shaderapi.h"
38 #include "main/shaderobj.h"
39 #include "main/uniforms.h"
40 #include "program/program.h"
41 #include "program/prog_parameter.h"
42 #include "program/hash_table.h"
43 #include "util/ralloc.h"
45 /**********************************************************************/
46 /*** Shader object functions ***/
47 /**********************************************************************/
51 * Set ptr to point to sh.
52 * If ptr is pointing to another shader, decrement its refcount (and delete
53 * if refcount hits zero).
54 * Then set ptr to point to sh, incrementing its refcount.
57 _mesa_reference_shader(struct gl_context
*ctx
, struct gl_shader
**ptr
,
66 /* Unreference the old shader */
67 GLboolean deleteFlag
= GL_FALSE
;
68 struct gl_shader
*old
= *ptr
;
70 assert(old
->RefCount
> 0);
72 deleteFlag
= (old
->RefCount
== 0);
76 _mesa_HashRemove(ctx
->Shared
->ShaderObjects
, old
->Name
);
77 _mesa_delete_shader(ctx
, old
);
92 _mesa_init_shader(struct gl_context
*ctx
, struct gl_shader
*shader
)
98 * Allocate a new gl_shader object, initialize it.
99 * Called via ctx->Driver.NewShader()
102 _mesa_new_shader(struct gl_context
*ctx
, GLuint name
, gl_shader_stage stage
)
104 struct gl_shader
*shader
;
105 shader
= rzalloc(NULL
, struct gl_shader
);
107 shader
->Stage
= stage
;
109 _mesa_init_shader(ctx
, shader
);
116 * Delete a shader object.
119 _mesa_delete_shader(struct gl_context
*ctx
, struct gl_shader
*sh
)
121 free((void *)sh
->Source
);
123 _mesa_reference_program(ctx
, &sh
->Program
, NULL
);
129 * Lookup a GLSL shader object.
132 _mesa_lookup_shader(struct gl_context
*ctx
, GLuint name
)
135 struct gl_shader
*sh
= (struct gl_shader
*)
136 _mesa_HashLookup(ctx
->Shared
->ShaderObjects
, name
);
137 /* Note that both gl_shader and gl_shader_program objects are kept
138 * in the same hash table. Check the object's type to be sure it's
139 * what we're expecting.
141 if (sh
&& sh
->Type
== GL_SHADER_PROGRAM_MESA
) {
151 * As above, but record an error if shader is not found.
154 _mesa_lookup_shader_err(struct gl_context
*ctx
, GLuint name
, const char *caller
)
157 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s", caller
);
161 struct gl_shader
*sh
= (struct gl_shader
*)
162 _mesa_HashLookup(ctx
->Shared
->ShaderObjects
, name
);
164 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s", caller
);
167 if (sh
->Type
== GL_SHADER_PROGRAM_MESA
) {
168 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s", caller
);
177 /**********************************************************************/
178 /*** Shader Program object functions ***/
179 /**********************************************************************/
183 * Set ptr to point to shProg.
184 * If ptr is pointing to another object, decrement its refcount (and delete
185 * if refcount hits zero).
186 * Then set ptr to point to shProg, incrementing its refcount.
189 _mesa_reference_shader_program_(struct gl_context
*ctx
,
190 struct gl_shader_program
**ptr
,
191 struct gl_shader_program
*shProg
)
194 if (*ptr
== shProg
) {
199 /* Unreference the old shader program */
200 GLboolean deleteFlag
= GL_FALSE
;
201 struct gl_shader_program
*old
= *ptr
;
203 assert(old
->RefCount
> 0);
205 deleteFlag
= (old
->RefCount
== 0);
209 _mesa_HashRemove(ctx
->Shared
->ShaderObjects
, old
->Name
);
210 _mesa_delete_shader_program(ctx
, old
);
224 init_shader_program(struct gl_shader_program
*prog
)
226 prog
->Type
= GL_SHADER_PROGRAM_MESA
;
229 prog
->AttributeBindings
= string_to_uint_map_ctor();
230 prog
->FragDataBindings
= string_to_uint_map_ctor();
231 prog
->FragDataIndexBindings
= string_to_uint_map_ctor();
233 prog
->Geom
.VerticesOut
= -1;
234 prog
->Geom
.InputType
= GL_TRIANGLES
;
235 prog
->Geom
.OutputType
= GL_TRIANGLE_STRIP
;
236 prog
->Geom
.UsesEndPrimitive
= false;
237 prog
->Geom
.UsesStreams
= false;
239 prog
->TransformFeedback
.BufferMode
= GL_INTERLEAVED_ATTRIBS
;
241 exec_list_make_empty(&prog
->EmptyUniformLocations
);
243 prog
->InfoLog
= ralloc_strdup(prog
, "");
247 * Allocate a new gl_shader_program object, initialize it.
249 struct gl_shader_program
*
250 _mesa_new_shader_program(GLuint name
)
252 struct gl_shader_program
*shProg
;
253 shProg
= rzalloc(NULL
, struct gl_shader_program
);
256 init_shader_program(shProg
);
263 * Clear (free) the shader program state that gets produced by linking.
266 _mesa_clear_shader_program_data(struct gl_shader_program
*shProg
)
270 if (shProg
->UniformStorage
) {
271 for (i
= 0; i
< shProg
->NumUniformStorage
; ++i
)
272 _mesa_uniform_detach_all_driver_storage(&shProg
->UniformStorage
[i
]);
273 ralloc_free(shProg
->UniformStorage
);
274 shProg
->NumUniformStorage
= 0;
275 shProg
->UniformStorage
= NULL
;
278 if (shProg
->UniformRemapTable
) {
279 ralloc_free(shProg
->UniformRemapTable
);
280 shProg
->NumUniformRemapTable
= 0;
281 shProg
->UniformRemapTable
= NULL
;
284 if (shProg
->UniformHash
) {
285 string_to_uint_map_dtor(shProg
->UniformHash
);
286 shProg
->UniformHash
= NULL
;
289 assert(shProg
->InfoLog
!= NULL
);
290 ralloc_free(shProg
->InfoLog
);
291 shProg
->InfoLog
= ralloc_strdup(shProg
, "");
293 ralloc_free(shProg
->UniformBlocks
);
294 shProg
->UniformBlocks
= NULL
;
295 shProg
->NumUniformBlocks
= 0;
297 ralloc_free(shProg
->ShaderStorageBlocks
);
298 shProg
->ShaderStorageBlocks
= NULL
;
299 shProg
->NumShaderStorageBlocks
= 0;
301 ralloc_free(shProg
->AtomicBuffers
);
302 shProg
->AtomicBuffers
= NULL
;
303 shProg
->NumAtomicBuffers
= 0;
305 if (shProg
->ProgramResourceList
) {
306 ralloc_free(shProg
->ProgramResourceList
);
307 shProg
->ProgramResourceList
= NULL
;
308 shProg
->NumProgramResourceList
= 0;
314 * Free all the data that hangs off a shader program object, but not the
318 _mesa_free_shader_program_data(struct gl_context
*ctx
,
319 struct gl_shader_program
*shProg
)
324 assert(shProg
->Type
== GL_SHADER_PROGRAM_MESA
);
326 _mesa_clear_shader_program_data(shProg
);
328 if (shProg
->AttributeBindings
) {
329 string_to_uint_map_dtor(shProg
->AttributeBindings
);
330 shProg
->AttributeBindings
= NULL
;
333 if (shProg
->FragDataBindings
) {
334 string_to_uint_map_dtor(shProg
->FragDataBindings
);
335 shProg
->FragDataBindings
= NULL
;
338 if (shProg
->FragDataIndexBindings
) {
339 string_to_uint_map_dtor(shProg
->FragDataIndexBindings
);
340 shProg
->FragDataIndexBindings
= NULL
;
344 for (i
= 0; i
< shProg
->NumShaders
; i
++) {
345 _mesa_reference_shader(ctx
, &shProg
->Shaders
[i
], NULL
);
347 shProg
->NumShaders
= 0;
349 free(shProg
->Shaders
);
350 shProg
->Shaders
= NULL
;
352 /* Transform feedback varying vars */
353 for (i
= 0; i
< shProg
->TransformFeedback
.NumVarying
; i
++) {
354 free(shProg
->TransformFeedback
.VaryingNames
[i
]);
356 free(shProg
->TransformFeedback
.VaryingNames
);
357 shProg
->TransformFeedback
.VaryingNames
= NULL
;
358 shProg
->TransformFeedback
.NumVarying
= 0;
361 for (sh
= 0; sh
< MESA_SHADER_STAGES
; sh
++) {
362 if (shProg
->_LinkedShaders
[sh
] != NULL
) {
363 _mesa_delete_shader(ctx
, shProg
->_LinkedShaders
[sh
]);
364 shProg
->_LinkedShaders
[sh
] = NULL
;
369 shProg
->Label
= NULL
;
374 * Free/delete a shader program object.
377 _mesa_delete_shader_program(struct gl_context
*ctx
,
378 struct gl_shader_program
*shProg
)
380 _mesa_free_shader_program_data(ctx
, shProg
);
387 * Lookup a GLSL program object.
389 struct gl_shader_program
*
390 _mesa_lookup_shader_program(struct gl_context
*ctx
, GLuint name
)
392 struct gl_shader_program
*shProg
;
394 shProg
= (struct gl_shader_program
*)
395 _mesa_HashLookup(ctx
->Shared
->ShaderObjects
, name
);
396 /* Note that both gl_shader and gl_shader_program objects are kept
397 * in the same hash table. Check the object's type to be sure it's
398 * what we're expecting.
400 if (shProg
&& shProg
->Type
!= GL_SHADER_PROGRAM_MESA
) {
410 * As above, but record an error if program is not found.
412 struct gl_shader_program
*
413 _mesa_lookup_shader_program_err(struct gl_context
*ctx
, GLuint name
,
417 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s", caller
);
421 struct gl_shader_program
*shProg
= (struct gl_shader_program
*)
422 _mesa_HashLookup(ctx
->Shared
->ShaderObjects
, name
);
424 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s", caller
);
427 if (shProg
->Type
!= GL_SHADER_PROGRAM_MESA
) {
428 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s", caller
);
437 _mesa_init_shader_object_functions(struct dd_function_table
*driver
)
439 driver
->NewShader
= _mesa_new_shader
;
440 driver
->LinkShader
= _mesa_ir_link_shader
;