2 * Mesa 3-D graphics library
4 * Copyright © 2013 Gregory Hainaut <gregory.hainaut@gmail.com>
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 (including the next
14 * paragraph) shall be included in all copies or substantial portions of the
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * 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 OTHER
21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
22 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
28 * \author Hainaut Gregory <gregory.hainaut@gmail.com>
30 * Implementation of pipeline object related API functions. Based on
31 * GL_ARB_separate_shader_objects extension.
34 #include "main/glheader.h"
35 #include "main/context.h"
36 #include "main/dispatch.h"
37 #include "main/enums.h"
38 #include "main/hash.h"
39 #include "main/mtypes.h"
40 #include "main/pipelineobj.h"
41 #include "main/shaderapi.h"
42 #include "main/shaderobj.h"
43 #include "main/transformfeedback.h"
44 #include "main/uniforms.h"
45 #include "program/program.h"
46 #include "program/prog_parameter.h"
49 #include "../glsl/glsl_parser_extras.h"
50 #include "../glsl/ir_uniform.h"
53 * Delete a pipeline object.
56 _mesa_delete_pipeline_object(struct gl_context
*ctx
,
57 struct gl_pipeline_object
*obj
)
61 _mesa_reference_shader_program(ctx
, &obj
->_CurrentFragmentProgram
, NULL
);
63 for (i
= 0; i
< MESA_SHADER_STAGES
; i
++)
64 _mesa_reference_shader_program(ctx
, &obj
->CurrentProgram
[i
], NULL
);
66 _mesa_reference_shader_program(ctx
, &obj
->ActiveProgram
, NULL
);
67 mtx_destroy(&obj
->Mutex
);
72 * Allocate and initialize a new pipeline object.
74 static struct gl_pipeline_object
*
75 _mesa_new_pipeline_object(struct gl_context
*ctx
, GLuint name
)
77 struct gl_pipeline_object
*obj
= rzalloc(NULL
, struct gl_pipeline_object
);
80 mtx_init(&obj
->Mutex
, mtx_plain
);
82 obj
->Flags
= _mesa_get_shader_flags();
90 * Initialize pipeline object state for given context.
93 _mesa_init_pipeline(struct gl_context
*ctx
)
95 ctx
->Pipeline
.Objects
= _mesa_NewHashTable();
97 ctx
->Pipeline
.Current
= NULL
;
99 /* Install a default Pipeline */
100 ctx
->Pipeline
.Default
= _mesa_new_pipeline_object(ctx
, 0);
101 _mesa_reference_pipeline_object(ctx
, &ctx
->_Shader
, ctx
->Pipeline
.Default
);
106 * Callback for deleting a pipeline object. Called by _mesa_HashDeleteAll().
109 delete_pipelineobj_cb(GLuint id
, void *data
, void *userData
)
111 struct gl_pipeline_object
*obj
= (struct gl_pipeline_object
*) data
;
112 struct gl_context
*ctx
= (struct gl_context
*) userData
;
113 _mesa_delete_pipeline_object(ctx
, obj
);
118 * Free pipeline state for given context.
121 _mesa_free_pipeline_data(struct gl_context
*ctx
)
123 _mesa_HashDeleteAll(ctx
->Pipeline
.Objects
, delete_pipelineobj_cb
, ctx
);
124 _mesa_DeleteHashTable(ctx
->Pipeline
.Objects
);
126 _mesa_reference_pipeline_object(ctx
, &ctx
->_Shader
, NULL
);
127 _mesa_delete_pipeline_object(ctx
, ctx
->Pipeline
.Default
);
132 * Look up the pipeline object for the given ID.
135 * Either a pointer to the pipeline object with the specified ID or \c NULL for
136 * a non-existent ID. The spec defines ID 0 as being technically
139 static inline struct gl_pipeline_object
*
140 lookup_pipeline_object(struct gl_context
*ctx
, GLuint id
)
145 return (struct gl_pipeline_object
*)
146 _mesa_HashLookup(ctx
->Pipeline
.Objects
, id
);
150 * Add the given pipeline object to the pipeline object pool.
153 save_pipeline_object(struct gl_context
*ctx
, struct gl_pipeline_object
*obj
)
156 _mesa_HashInsert(ctx
->Pipeline
.Objects
, obj
->Name
, obj
);
161 * Remove the given pipeline object from the pipeline object pool.
162 * Do not deallocate the pipeline object though.
165 remove_pipeline_object(struct gl_context
*ctx
, struct gl_pipeline_object
*obj
)
168 _mesa_HashRemove(ctx
->Pipeline
.Objects
, obj
->Name
);
173 * Set ptr to obj w/ reference counting.
174 * Note: this should only be called from the _mesa_reference_pipeline_object()
178 _mesa_reference_pipeline_object_(struct gl_context
*ctx
,
179 struct gl_pipeline_object
**ptr
,
180 struct gl_pipeline_object
*obj
)
185 /* Unreference the old pipeline object */
186 GLboolean deleteFlag
= GL_FALSE
;
187 struct gl_pipeline_object
*oldObj
= *ptr
;
189 mtx_lock(&oldObj
->Mutex
);
190 ASSERT(oldObj
->RefCount
> 0);
192 deleteFlag
= (oldObj
->RefCount
== 0);
193 mtx_unlock(&oldObj
->Mutex
);
196 _mesa_delete_pipeline_object(ctx
, oldObj
);
204 /* reference new pipeline object */
205 mtx_lock(&obj
->Mutex
);
206 if (obj
->RefCount
== 0) {
207 /* this pipeline's being deleted (look just above) */
208 /* Not sure this can ever really happen. Warn if it does. */
209 _mesa_problem(NULL
, "referencing deleted pipeline object");
216 mtx_unlock(&obj
->Mutex
);
221 * Bound program to severals stages of the pipeline
224 _mesa_UseProgramStages(GLuint pipeline
, GLbitfield stages
, GLuint program
)
226 GET_CURRENT_CONTEXT(ctx
);
228 struct gl_pipeline_object
*pipe
= lookup_pipeline_object(ctx
, pipeline
);
229 struct gl_shader_program
*shProg
= NULL
;
232 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glUseProgramStages(pipeline)");
236 /* Object is created by any Pipeline call but glGenProgramPipelines,
237 * glIsProgramPipeline and GetProgramPipelineInfoLog
239 pipe
->EverBound
= GL_TRUE
;
241 /* Section 2.11.4 (Program Pipeline Objects) of the OpenGL 4.1 spec says:
243 * "If stages is not the special value ALL_SHADER_BITS, and has a bit
244 * set that is not recognized, the error INVALID_VALUE is generated."
247 * GL_TESS_CONTROL_SHADER_BIT
248 * GL_TESS_EVALUATION_SHADER_BIT
250 GLbitfield any_valid_stages
= GL_VERTEX_SHADER_BIT
| GL_FRAGMENT_SHADER_BIT
;
251 if (_mesa_has_geometry_shaders(ctx
))
252 any_valid_stages
|= GL_GEOMETRY_SHADER_BIT
;
254 if (stages
!= GL_ALL_SHADER_BITS
&& (stages
& ~any_valid_stages
) != 0) {
255 _mesa_error(ctx
, GL_INVALID_VALUE
, "glUseProgramStages(Stages)");
259 /* Section 2.17.2 (Transform Feedback Primitive Capture) of the OpenGL 4.1
262 * "The error INVALID_OPERATION is generated:
266 * - by UseProgramStages if the program pipeline object it refers
267 * to is current and the current transform feedback object is
268 * active and not paused;
270 if (ctx
->_Shader
== pipe
) {
271 if (_mesa_is_xfb_active_and_unpaused(ctx
)) {
272 _mesa_error(ctx
, GL_INVALID_OPERATION
,
273 "glUseProgramStages(transform feedback active)");
279 shProg
= _mesa_lookup_shader_program_err(ctx
, program
,
280 "glUseProgramStages");
284 /* Section 2.11.4 (Program Pipeline Objects) of the OpenGL 4.1 spec
287 * "If the program object named by program was linked without the
288 * PROGRAM_SEPARABLE parameter set, or was not linked successfully,
289 * the error INVALID_OPERATION is generated and the corresponding
290 * shader stages in the pipeline program pipeline object are not
293 if (!shProg
->LinkStatus
) {
294 _mesa_error(ctx
, GL_INVALID_OPERATION
,
295 "glUseProgramStages(program not linked)");
299 if (!shProg
->SeparateShader
) {
300 _mesa_error(ctx
, GL_INVALID_OPERATION
,
301 "glUseProgramStages(program wasn't linked with the "
302 "PROGRAM_SEPARABLE flag)");
307 /* Enable individual stages from the program as requested by the
308 * application. If there is no shader for a requested stage in the
309 * program, _mesa_use_shader_program will enable fixed-function processing
310 * as dictated by the spec.
312 * Section 2.11.4 (Program Pipeline Objects) of the OpenGL 4.1 spec
315 * "If UseProgramStages is called with program set to zero or with a
316 * program object that contains no executable code for the given
317 * stages, it is as if the pipeline object has no programmable stage
318 * configured for the indicated shader stages."
320 if ((stages
& GL_VERTEX_SHADER_BIT
) != 0)
321 _mesa_use_shader_program(ctx
, GL_VERTEX_SHADER
, shProg
, pipe
);
323 if ((stages
& GL_FRAGMENT_SHADER_BIT
) != 0)
324 _mesa_use_shader_program(ctx
, GL_FRAGMENT_SHADER
, shProg
, pipe
);
326 if ((stages
& GL_GEOMETRY_SHADER_BIT
) != 0)
327 _mesa_use_shader_program(ctx
, GL_GEOMETRY_SHADER
, shProg
, pipe
);
331 * Use the named shader program for subsequent glUniform calls (if pipeline
335 _mesa_ActiveShaderProgram(GLuint pipeline
, GLuint program
)
337 GET_CURRENT_CONTEXT(ctx
);
338 struct gl_shader_program
*shProg
= NULL
;
339 struct gl_pipeline_object
*pipe
= lookup_pipeline_object(ctx
, pipeline
);
342 shProg
= _mesa_lookup_shader_program_err(ctx
, program
,
343 "glActiveShaderProgram(program)");
349 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glActiveShaderProgram(pipeline)");
353 /* Object is created by any Pipeline call but glGenProgramPipelines,
354 * glIsProgramPipeline and GetProgramPipelineInfoLog
356 pipe
->EverBound
= GL_TRUE
;
358 if ((shProg
!= NULL
) && !shProg
->LinkStatus
) {
359 _mesa_error(ctx
, GL_INVALID_OPERATION
,
360 "glActiveShaderProgram(program %u not linked)", shProg
->Name
);
364 _mesa_reference_shader_program(ctx
, &pipe
->ActiveProgram
, shProg
);
368 * Make program of the pipeline current
371 _mesa_BindProgramPipeline(GLuint pipeline
)
373 GET_CURRENT_CONTEXT(ctx
);
374 struct gl_pipeline_object
*newObj
= NULL
;
376 /* Rebinding the same pipeline object: no change.
378 if (ctx
->_Shader
->Name
== pipeline
)
381 /* Section 2.17.2 (Transform Feedback Primitive Capture) of the OpenGL 4.1
384 * "The error INVALID_OPERATION is generated:
388 * - by BindProgramPipeline if the current transform feedback
389 * object is active and not paused;
391 if (_mesa_is_xfb_active_and_unpaused(ctx
)) {
392 _mesa_error(ctx
, GL_INVALID_OPERATION
,
393 "glBindProgramPipeline(transform feedback active)");
397 /* Get pointer to new pipeline object (newObj)
400 /* non-default pipeline object */
401 newObj
= lookup_pipeline_object(ctx
, pipeline
);
403 _mesa_error(ctx
, GL_INVALID_OPERATION
,
404 "glBindProgramPipeline(non-gen name)");
408 /* Object is created by any Pipeline call but glGenProgramPipelines,
409 * glIsProgramPipeline and GetProgramPipelineInfoLog
411 newObj
->EverBound
= GL_TRUE
;
414 /* First bind the Pipeline to pipeline binding point */
415 _mesa_reference_pipeline_object(ctx
, &ctx
->Pipeline
.Current
, newObj
);
417 /* Section 2.11.3 (Program Objects) of the OpenGL 4.1 spec says:
419 * "If there is a current program object established by UseProgram,
420 * that program is considered current for all stages. Otherwise, if
421 * there is a bound program pipeline object (see section 2.11.4), the
422 * program bound to the appropriate stage of the pipeline object is
423 * considered current."
425 if (&ctx
->Shader
!= ctx
->_Shader
) {
427 /* Bound the pipeline to the current program and
428 * restore the pipeline state
430 _mesa_reference_pipeline_object(ctx
, &ctx
->_Shader
, newObj
);
432 /* Unbind the pipeline */
433 _mesa_reference_pipeline_object(ctx
, &ctx
->_Shader
,
434 ctx
->Pipeline
.Default
);
437 FLUSH_VERTICES(ctx
, _NEW_PROGRAM
| _NEW_PROGRAM_CONSTANTS
);
439 if (ctx
->Driver
.UseProgram
)
440 ctx
->Driver
.UseProgram(ctx
, NULL
);
445 * Delete a set of pipeline objects.
447 * \param n Number of pipeline objects to delete.
448 * \param ids pipeline of \c n pipeline object IDs.
451 _mesa_DeleteProgramPipelines(GLsizei n
, const GLuint
*pipelines
)
453 GET_CURRENT_CONTEXT(ctx
);
457 _mesa_error(ctx
, GL_INVALID_VALUE
, "glDeleteProgramPipelines(n<0)");
461 for (i
= 0; i
< n
; i
++) {
462 struct gl_pipeline_object
*obj
=
463 lookup_pipeline_object(ctx
, pipelines
[i
]);
466 ASSERT(obj
->Name
== pipelines
[i
]);
468 /* If the pipeline object is currently bound, the spec says "If an
469 * object that is currently bound is deleted, the binding for that
470 * object reverts to zero and no program pipeline object becomes
473 if (obj
== ctx
->Pipeline
.Current
) {
474 _mesa_BindProgramPipeline(0);
477 /* The ID is immediately freed for re-use */
478 remove_pipeline_object(ctx
, obj
);
480 /* Unreference the pipeline object.
481 * If refcount hits zero, the object will be deleted.
483 _mesa_reference_pipeline_object(ctx
, &obj
, NULL
);
489 * Generate a set of unique pipeline object IDs and store them in \c pipelines.
490 * \param n Number of IDs to generate.
491 * \param pipelines pipeline of \c n locations to store the IDs.
494 _mesa_GenProgramPipelines(GLsizei n
, GLuint
*pipelines
)
496 GET_CURRENT_CONTEXT(ctx
);
502 _mesa_error(ctx
, GL_INVALID_VALUE
, "glGenProgramPipelines(n<0)");
510 first
= _mesa_HashFindFreeKeyBlock(ctx
->Pipeline
.Objects
, n
);
512 for (i
= 0; i
< n
; i
++) {
513 struct gl_pipeline_object
*obj
;
514 GLuint name
= first
+ i
;
516 obj
= _mesa_new_pipeline_object(ctx
, name
);
518 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glGenProgramPipelines");
522 save_pipeline_object(ctx
, obj
);
523 pipelines
[i
] = first
+ i
;
529 * Determine if ID is the name of an pipeline object.
531 * \param id ID of the potential pipeline object.
532 * \return \c GL_TRUE if \c id is the name of a pipeline object,
533 * \c GL_FALSE otherwise.
536 _mesa_IsProgramPipeline(GLuint pipeline
)
538 GET_CURRENT_CONTEXT(ctx
);
540 struct gl_pipeline_object
*obj
= lookup_pipeline_object(ctx
, pipeline
);
544 return obj
->EverBound
;
548 * glGetProgramPipelineiv() - get pipeline shader state.
551 _mesa_GetProgramPipelineiv(GLuint pipeline
, GLenum pname
, GLint
*params
)
553 GET_CURRENT_CONTEXT(ctx
);
554 struct gl_pipeline_object
*pipe
= lookup_pipeline_object(ctx
, pipeline
);
556 /* Are geometry shaders available in this context?
558 const bool has_gs
= _mesa_has_geometry_shaders(ctx
);
561 _mesa_error(ctx
, GL_INVALID_OPERATION
,
562 "glGetProgramPipelineiv(pipeline)");
566 /* Object is created by any Pipeline call but glGenProgramPipelines,
567 * glIsProgramPipeline and GetProgramPipelineInfoLog
569 pipe
->EverBound
= GL_TRUE
;
572 case GL_ACTIVE_PROGRAM
:
573 *params
= pipe
->ActiveProgram
? pipe
->ActiveProgram
->Name
: 0;
575 case GL_INFO_LOG_LENGTH
:
576 *params
= pipe
->InfoLog
? strlen(pipe
->InfoLog
) + 1 : 0;
578 case GL_VALIDATE_STATUS
:
579 *params
= pipe
->Validated
;
581 case GL_VERTEX_SHADER
:
582 *params
= pipe
->CurrentProgram
[MESA_SHADER_VERTEX
]
583 ? pipe
->CurrentProgram
[MESA_SHADER_VERTEX
]->Name
: 0;
585 case GL_TESS_EVALUATION_SHADER
:
586 /* NOT YET SUPPORTED */
588 case GL_TESS_CONTROL_SHADER
:
589 /* NOT YET SUPPORTED */
591 case GL_GEOMETRY_SHADER
:
594 *params
= pipe
->CurrentProgram
[MESA_SHADER_GEOMETRY
]
595 ? pipe
->CurrentProgram
[MESA_SHADER_GEOMETRY
]->Name
: 0;
597 case GL_FRAGMENT_SHADER
:
598 *params
= pipe
->CurrentProgram
[MESA_SHADER_FRAGMENT
]
599 ? pipe
->CurrentProgram
[MESA_SHADER_FRAGMENT
]->Name
: 0;
605 _mesa_error(ctx
, GL_INVALID_ENUM
, "glGetProgramPipelineiv(pname=%s)",
606 _mesa_lookup_enum_by_nr(pname
));
610 * Determines whether every stage in a linked program is active in the
611 * specified pipeline.
614 program_stages_all_active(struct gl_pipeline_object
*pipe
,
615 const struct gl_shader_program
*prog
)
623 for (i
= 0; i
< MESA_SHADER_STAGES
; i
++) {
624 if (prog
->_LinkedShaders
[i
]) {
625 if (pipe
->CurrentProgram
[i
]) {
626 if (prog
->Name
!= pipe
->CurrentProgram
[i
]->Name
) {
636 pipe
->InfoLog
= ralloc_asprintf(pipe
,
637 "Program %d is not active for all "
638 "shaders that was linked",
646 _mesa_validate_program_pipeline(struct gl_context
* ctx
,
647 struct gl_pipeline_object
*pipe
,
652 pipe
->Validated
= GL_FALSE
;
654 /* Release and reset the info log.
656 if (pipe
->InfoLog
!= NULL
)
657 ralloc_free(pipe
->InfoLog
);
659 pipe
->InfoLog
= NULL
;
661 /* Section 2.11.11 (Shader Execution), subheading "Validation," of the
662 * OpenGL 4.1 spec says:
664 * "[INVALID_OPERATION] is generated by any command that transfers
665 * vertices to the GL if:
667 * - A program object is active for at least one, but not all of
668 * the shader stages that were present when the program was
671 * For each possible program stage, verify that the program bound to that
672 * stage has all of its stages active. In other words, if the program
673 * bound to the vertex stage also has a fragment shader, the fragment
674 * shader must also be bound to the fragment stage.
676 for (i
= 0; i
< MESA_SHADER_STAGES
; i
++) {
677 if (!program_stages_all_active(pipe
, pipe
->CurrentProgram
[i
])) {
682 /* Section 2.11.11 (Shader Execution), subheading "Validation," of the
683 * OpenGL 4.1 spec says:
685 * "[INVALID_OPERATION] is generated by any command that transfers
686 * vertices to the GL if:
690 * - One program object is active for at least two shader stages
691 * and a second program is active for a shader stage between two
692 * stages for which the first program was active."
694 * Without Tesselation, the only case where this can occur is the geometry
695 * shader between the fragment shader and vertex shader.
697 if (pipe
->CurrentProgram
[MESA_SHADER_GEOMETRY
]
698 && pipe
->CurrentProgram
[MESA_SHADER_FRAGMENT
]
699 && pipe
->CurrentProgram
[MESA_SHADER_VERTEX
]) {
700 if (pipe
->CurrentProgram
[MESA_SHADER_VERTEX
]->Name
== pipe
->CurrentProgram
[MESA_SHADER_FRAGMENT
]->Name
&&
701 pipe
->CurrentProgram
[MESA_SHADER_GEOMETRY
]->Name
!= pipe
->CurrentProgram
[MESA_SHADER_VERTEX
]->Name
) {
703 ralloc_asprintf(pipe
,
704 "Program %d is active for geometry stage between "
705 "two stages for which another program %d is "
707 pipe
->CurrentProgram
[MESA_SHADER_GEOMETRY
]->Name
,
708 pipe
->CurrentProgram
[MESA_SHADER_VERTEX
]->Name
);
713 /* Section 2.11.11 (Shader Execution), subheading "Validation," of the
714 * OpenGL 4.1 spec says:
716 * "[INVALID_OPERATION] is generated by any command that transfers
717 * vertices to the GL if:
721 * - There is an active program for tessellation control,
722 * tessellation evaluation, or geometry stages with corresponding
723 * executable shader, but there is no active program with
724 * executable vertex shader."
726 if (!pipe
->CurrentProgram
[MESA_SHADER_VERTEX
]
727 && pipe
->CurrentProgram
[MESA_SHADER_GEOMETRY
]) {
728 pipe
->InfoLog
= ralloc_strdup(pipe
, "Program lacks a vertex shader");
732 /* Section 2.11.11 (Shader Execution), subheading "Validation," of the
733 * OpenGL 4.1 spec says:
735 * "[INVALID_OPERATION] is generated by any command that transfers
736 * vertices to the GL if:
740 * - There is no current program object specified by UseProgram,
741 * there is a current program pipeline object, and the current
742 * program for any shader stage has been relinked since being
743 * applied to the pipeline object via UseProgramStages with the
744 * PROGRAM_SEPARABLE parameter set to FALSE.
746 for (i
= 0; i
< MESA_SHADER_STAGES
; i
++) {
747 if (pipe
->CurrentProgram
[i
] && !pipe
->CurrentProgram
[i
]->SeparateShader
) {
748 pipe
->InfoLog
= ralloc_asprintf(pipe
,
749 "Program %d was relinked without "
750 "PROGRAM_SEPARABLE state",
751 pipe
->CurrentProgram
[i
]->Name
);
756 /* Section 2.11.11 (Shader Execution), subheading "Validation," of the
757 * OpenGL 4.1 spec says:
759 * "[INVALID_OPERATION] is generated by any command that transfers
760 * vertices to the GL if:
764 * - Any two active samplers in the current program object are of
765 * different types, but refer to the same texture image unit.
767 * - The number of active samplers in the program exceeds the
768 * maximum number of texture image units allowed."
770 if (!_mesa_sampler_uniforms_pipeline_are_valid(pipe
))
773 pipe
->Validated
= GL_TRUE
;
778 _mesa_error(ctx
, GL_INVALID_OPERATION
,
779 "glValidateProgramPipeline failed to validate the pipeline");
785 * Check compatibility of pipeline's program
788 _mesa_ValidateProgramPipeline(GLuint pipeline
)
790 GET_CURRENT_CONTEXT(ctx
);
792 struct gl_pipeline_object
*pipe
= lookup_pipeline_object(ctx
, pipeline
);
795 _mesa_error(ctx
, GL_INVALID_OPERATION
,
796 "glValidateProgramPipeline(pipeline)");
800 _mesa_validate_program_pipeline(ctx
, pipe
,
801 (ctx
->_Shader
->Name
== pipe
->Name
));
805 _mesa_GetProgramPipelineInfoLog(GLuint pipeline
, GLsizei bufSize
,
806 GLsizei
*length
, GLchar
*infoLog
)
808 GET_CURRENT_CONTEXT(ctx
);
810 struct gl_pipeline_object
*pipe
= lookup_pipeline_object(ctx
, pipeline
);
813 _mesa_error(ctx
, GL_INVALID_VALUE
,
814 "glGetProgramPipelineInfoLog(pipeline)");
819 _mesa_error(ctx
, GL_INVALID_VALUE
,
820 "glGetProgramPipelineInfoLog(bufSize)");
825 _mesa_copy_string(infoLog
, bufSize
, length
, pipe
->InfoLog
);