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.
30 * Implementation of GLSL-related API functions.
31 * The glUniform* functions are in uniforms.c
37 #include <c99_alloca.h>
38 #include "main/glheader.h"
39 #include "main/context.h"
40 #include "main/enums.h"
41 #include "main/glspirv.h"
42 #include "main/hash.h"
43 #include "main/mtypes.h"
44 #include "main/pipelineobj.h"
45 #include "main/program_binary.h"
46 #include "main/shaderapi.h"
47 #include "main/shaderobj.h"
48 #include "main/state.h"
49 #include "main/transformfeedback.h"
50 #include "main/uniforms.h"
51 #include "compiler/glsl/builtin_functions.h"
52 #include "compiler/glsl/glsl_parser_extras.h"
53 #include "compiler/glsl/ir.h"
54 #include "compiler/glsl/ir_uniform.h"
55 #include "compiler/glsl/program.h"
56 #include "program/program.h"
57 #include "program/prog_print.h"
58 #include "program/prog_parameter.h"
59 #include "util/ralloc.h"
60 #include "util/hash_table.h"
61 #include "util/mesa-sha1.h"
62 #include "util/crc32.h"
63 #include "util/os_file.h"
66 * Return mask of GLSL_x flags by examining the MESA_GLSL env var.
69 _mesa_get_shader_flags(void)
71 GLbitfield flags
= 0x0;
72 const char *env
= getenv("MESA_GLSL");
75 if (strstr(env
, "dump_on_error"))
76 flags
|= GLSL_DUMP_ON_ERROR
;
77 else if (strstr(env
, "dump"))
79 if (strstr(env
, "log"))
81 if (strstr(env
, "cache_fb"))
82 flags
|= GLSL_CACHE_FALLBACK
;
83 if (strstr(env
, "cache_info"))
84 flags
|= GLSL_CACHE_INFO
;
85 if (strstr(env
, "nopvert"))
86 flags
|= GLSL_NOP_VERT
;
87 if (strstr(env
, "nopfrag"))
88 flags
|= GLSL_NOP_FRAG
;
89 if (strstr(env
, "uniform"))
90 flags
|= GLSL_UNIFORMS
;
91 if (strstr(env
, "useprog"))
92 flags
|= GLSL_USE_PROG
;
93 if (strstr(env
, "errors"))
94 flags
|= GLSL_REPORT_ERRORS
;
101 * Memoized version of getenv("MESA_SHADER_CAPTURE_PATH").
104 _mesa_get_shader_capture_path(void)
106 static bool read_env_var
= false;
107 static const char *path
= NULL
;
110 path
= getenv("MESA_SHADER_CAPTURE_PATH");
118 * Initialize context's shader state.
121 _mesa_init_shader_state(struct gl_context
*ctx
)
123 /* Device drivers may override these to control what kind of instructions
124 * are generated by the GLSL compiler.
126 struct gl_shader_compiler_options options
;
130 memset(&options
, 0, sizeof(options
));
131 options
.MaxUnrollIterations
= 32;
132 options
.MaxIfDepth
= UINT_MAX
;
134 for (sh
= 0; sh
< MESA_SHADER_STAGES
; ++sh
)
135 memcpy(&ctx
->Const
.ShaderCompilerOptions
[sh
], &options
, sizeof(options
));
137 ctx
->Shader
.Flags
= _mesa_get_shader_flags();
139 if (ctx
->Shader
.Flags
!= 0)
140 ctx
->Const
.GenerateTemporaryNames
= true;
142 /* Extended for ARB_separate_shader_objects */
143 ctx
->Shader
.RefCount
= 1;
144 ctx
->TessCtrlProgram
.patch_vertices
= 3;
145 for (i
= 0; i
< 4; ++i
)
146 ctx
->TessCtrlProgram
.patch_default_outer_level
[i
] = 1.0;
147 for (i
= 0; i
< 2; ++i
)
148 ctx
->TessCtrlProgram
.patch_default_inner_level
[i
] = 1.0;
153 * Free the per-context shader-related state.
156 _mesa_free_shader_state(struct gl_context
*ctx
)
158 for (int i
= 0; i
< MESA_SHADER_STAGES
; i
++) {
159 _mesa_reference_program(ctx
, &ctx
->Shader
.CurrentProgram
[i
], NULL
);
160 _mesa_reference_shader_program(ctx
,
161 &ctx
->Shader
.ReferencedPrograms
[i
],
163 free(ctx
->SubroutineIndex
[i
].IndexPtr
);
164 ctx
->SubroutineIndex
[i
].IndexPtr
= NULL
;
166 _mesa_reference_shader_program(ctx
, &ctx
->Shader
.ActiveProgram
, NULL
);
168 /* Extended for ARB_separate_shader_objects */
169 _mesa_reference_pipeline_object(ctx
, &ctx
->_Shader
, NULL
);
171 assert(ctx
->Shader
.RefCount
== 1);
176 * Copy string from <src> to <dst>, up to maxLength characters, returning
177 * length of <dst> in <length>.
178 * \param src the strings source
179 * \param maxLength max chars to copy
180 * \param length returns number of chars copied
181 * \param dst the string destination
184 _mesa_copy_string(GLchar
*dst
, GLsizei maxLength
,
185 GLsizei
*length
, const GLchar
*src
)
188 for (len
= 0; len
< maxLength
- 1 && src
&& src
[len
]; len
++)
199 * Confirm that the a shader type is valid and supported by the implementation
201 * \param ctx Current GL context
202 * \param type Shader target
206 _mesa_validate_shader_target(const struct gl_context
*ctx
, GLenum type
)
208 /* Note: when building built-in GLSL functions, this function may be
209 * invoked with ctx == NULL. In that case, we can only validate that it's
210 * a shader target we recognize, not that it's supported in the current
211 * context. But that's fine--we don't need any further validation than
212 * that when building built-in GLSL functions.
216 case GL_FRAGMENT_SHADER
:
217 return ctx
== NULL
|| ctx
->Extensions
.ARB_fragment_shader
;
218 case GL_VERTEX_SHADER
:
219 return ctx
== NULL
|| ctx
->Extensions
.ARB_vertex_shader
;
220 case GL_GEOMETRY_SHADER_ARB
:
221 return ctx
== NULL
|| _mesa_has_geometry_shaders(ctx
);
222 case GL_TESS_CONTROL_SHADER
:
223 case GL_TESS_EVALUATION_SHADER
:
224 return ctx
== NULL
|| _mesa_has_tessellation(ctx
);
225 case GL_COMPUTE_SHADER
:
226 return ctx
== NULL
|| _mesa_has_compute_shaders(ctx
);
234 is_program(struct gl_context
*ctx
, GLuint name
)
236 struct gl_shader_program
*shProg
= _mesa_lookup_shader_program(ctx
, name
);
237 return shProg
? GL_TRUE
: GL_FALSE
;
242 is_shader(struct gl_context
*ctx
, GLuint name
)
244 struct gl_shader
*shader
= _mesa_lookup_shader(ctx
, name
);
245 return shader
? GL_TRUE
: GL_FALSE
;
250 * Attach shader to a shader program.
253 attach_shader(struct gl_context
*ctx
, struct gl_shader_program
*shProg
,
254 struct gl_shader
*sh
)
256 GLuint n
= shProg
->NumShaders
;
258 shProg
->Shaders
= realloc(shProg
->Shaders
,
259 (n
+ 1) * sizeof(struct gl_shader
*));
260 if (!shProg
->Shaders
) {
261 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glAttachShader");
266 shProg
->Shaders
[n
] = NULL
; /* since realloc() didn't zero the new space */
267 _mesa_reference_shader(ctx
, &shProg
->Shaders
[n
], sh
);
268 shProg
->NumShaders
++;
272 attach_shader_err(struct gl_context
*ctx
, GLuint program
, GLuint shader
,
275 struct gl_shader_program
*shProg
;
276 struct gl_shader
*sh
;
279 const bool same_type_disallowed
= _mesa_is_gles(ctx
);
281 shProg
= _mesa_lookup_shader_program_err(ctx
, program
, caller
);
285 sh
= _mesa_lookup_shader_err(ctx
, shader
, caller
);
290 n
= shProg
->NumShaders
;
291 for (i
= 0; i
< n
; i
++) {
292 if (shProg
->Shaders
[i
] == sh
) {
293 /* The shader is already attched to this program. The
294 * GL_ARB_shader_objects spec says:
296 * "The error INVALID_OPERATION is generated by AttachObjectARB
297 * if <obj> is already attached to <containerObj>."
299 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s", caller
);
301 } else if (same_type_disallowed
&&
302 shProg
->Shaders
[i
]->Stage
== sh
->Stage
) {
303 /* Shader with the same type is already attached to this program,
304 * OpenGL ES 2.0 and 3.0 specs say:
306 * "Multiple shader objects of the same type may not be attached
307 * to a single program object. [...] The error INVALID_OPERATION
308 * is generated if [...] another shader object of the same type
309 * as shader is already attached to program."
311 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s", caller
);
316 attach_shader(ctx
, shProg
, sh
);
320 attach_shader_no_error(struct gl_context
*ctx
, GLuint program
, GLuint shader
)
322 struct gl_shader_program
*shProg
;
323 struct gl_shader
*sh
;
325 shProg
= _mesa_lookup_shader_program(ctx
, program
);
326 sh
= _mesa_lookup_shader(ctx
, shader
);
328 attach_shader(ctx
, shProg
, sh
);
332 create_shader(struct gl_context
*ctx
, GLenum type
)
334 struct gl_shader
*sh
;
337 _mesa_HashLockMutex(ctx
->Shared
->ShaderObjects
);
338 name
= _mesa_HashFindFreeKeyBlock(ctx
->Shared
->ShaderObjects
, 1);
339 sh
= _mesa_new_shader(name
, _mesa_shader_enum_to_shader_stage(type
));
341 _mesa_HashInsertLocked(ctx
->Shared
->ShaderObjects
, name
, sh
);
342 _mesa_HashUnlockMutex(ctx
->Shared
->ShaderObjects
);
349 create_shader_err(struct gl_context
*ctx
, GLenum type
, const char *caller
)
351 if (!_mesa_validate_shader_target(ctx
, type
)) {
352 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(%s)",
353 caller
, _mesa_enum_to_string(type
));
357 return create_shader(ctx
, type
);
362 create_shader_program(struct gl_context
*ctx
)
365 struct gl_shader_program
*shProg
;
367 _mesa_HashLockMutex(ctx
->Shared
->ShaderObjects
);
369 name
= _mesa_HashFindFreeKeyBlock(ctx
->Shared
->ShaderObjects
, 1);
371 shProg
= _mesa_new_shader_program(name
);
373 _mesa_HashInsertLocked(ctx
->Shared
->ShaderObjects
, name
, shProg
);
375 assert(shProg
->RefCount
== 1);
377 _mesa_HashUnlockMutex(ctx
->Shared
->ShaderObjects
);
384 * Delete a shader program. Actually, just decrement the program's
385 * reference count and mark it as DeletePending.
386 * Used to implement glDeleteProgram() and glDeleteObjectARB().
389 delete_shader_program(struct gl_context
*ctx
, GLuint name
)
392 * NOTE: deleting shaders/programs works a bit differently than
393 * texture objects (and buffer objects, etc). Shader/program
394 * handles/IDs exist in the hash table until the object is really
395 * deleted (refcount==0). With texture objects, the handle/ID is
396 * removed from the hash table in glDeleteTextures() while the tex
397 * object itself might linger until its refcount goes to zero.
399 struct gl_shader_program
*shProg
;
401 shProg
= _mesa_lookup_shader_program_err(ctx
, name
, "glDeleteProgram");
405 if (!shProg
->DeletePending
) {
406 shProg
->DeletePending
= GL_TRUE
;
408 /* effectively, decr shProg's refcount */
409 _mesa_reference_shader_program(ctx
, &shProg
, NULL
);
415 delete_shader(struct gl_context
*ctx
, GLuint shader
)
417 struct gl_shader
*sh
;
419 sh
= _mesa_lookup_shader_err(ctx
, shader
, "glDeleteShader");
423 if (!sh
->DeletePending
) {
424 sh
->DeletePending
= GL_TRUE
;
426 /* effectively, decr sh's refcount */
427 _mesa_reference_shader(ctx
, &sh
, NULL
);
432 static ALWAYS_INLINE
void
433 detach_shader(struct gl_context
*ctx
, GLuint program
, GLuint shader
,
436 struct gl_shader_program
*shProg
;
441 shProg
= _mesa_lookup_shader_program_err(ctx
, program
, "glDetachShader");
445 shProg
= _mesa_lookup_shader_program(ctx
, program
);
448 n
= shProg
->NumShaders
;
450 for (i
= 0; i
< n
; i
++) {
451 if (shProg
->Shaders
[i
]->Name
== shader
) {
453 struct gl_shader
**newList
;
456 _mesa_reference_shader(ctx
, &shProg
->Shaders
[i
], NULL
);
458 /* alloc new, smaller array */
459 newList
= malloc((n
- 1) * sizeof(struct gl_shader
*));
461 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glDetachShader");
464 /* Copy old list entries to new list, skipping removed entry at [i] */
465 for (j
= 0; j
< i
; j
++) {
466 newList
[j
] = shProg
->Shaders
[j
];
469 newList
[j
++] = shProg
->Shaders
[i
];
472 /* Free old list and install new one */
473 free(shProg
->Shaders
);
474 shProg
->Shaders
= newList
;
475 shProg
->NumShaders
= n
- 1;
478 /* sanity check - make sure the new list's entries are sensible */
479 for (j
= 0; j
< shProg
->NumShaders
; j
++) {
480 assert(shProg
->Shaders
[j
]->Stage
== MESA_SHADER_VERTEX
||
481 shProg
->Shaders
[j
]->Stage
== MESA_SHADER_TESS_CTRL
||
482 shProg
->Shaders
[j
]->Stage
== MESA_SHADER_TESS_EVAL
||
483 shProg
->Shaders
[j
]->Stage
== MESA_SHADER_GEOMETRY
||
484 shProg
->Shaders
[j
]->Stage
== MESA_SHADER_FRAGMENT
);
485 assert(shProg
->Shaders
[j
]->RefCount
> 0);
496 if (is_shader(ctx
, shader
) || is_program(ctx
, shader
))
497 err
= GL_INVALID_OPERATION
;
499 err
= GL_INVALID_VALUE
;
500 _mesa_error(ctx
, err
, "glDetachShader(shader)");
507 detach_shader_error(struct gl_context
*ctx
, GLuint program
, GLuint shader
)
509 detach_shader(ctx
, program
, shader
, false);
514 detach_shader_no_error(struct gl_context
*ctx
, GLuint program
, GLuint shader
)
516 detach_shader(ctx
, program
, shader
, true);
521 * Return list of shaders attached to shader program.
522 * \param objOut returns GLuint ids
523 * \param handleOut returns GLhandleARB handles
526 get_attached_shaders(struct gl_context
*ctx
, GLuint program
, GLsizei maxCount
,
527 GLsizei
*countOut
, GLuint
*objOut
, GLhandleARB
*handleOut
)
529 struct gl_shader_program
*shProg
;
532 _mesa_error(ctx
, GL_INVALID_VALUE
, "glGetAttachedShaders(maxCount < 0)");
537 _mesa_lookup_shader_program_err(ctx
, program
, "glGetAttachedShaders");
541 for (i
= 0; i
< (GLuint
) maxCount
&& i
< shProg
->NumShaders
; i
++) {
543 objOut
[i
] = shProg
->Shaders
[i
]->Name
;
547 handleOut
[i
] = (GLhandleARB
) shProg
->Shaders
[i
]->Name
;
557 * glGetHandleARB() - return ID/name of currently bound shader program.
560 get_handle(struct gl_context
*ctx
, GLenum pname
)
562 if (pname
== GL_PROGRAM_OBJECT_ARB
) {
563 if (ctx
->_Shader
->ActiveProgram
)
564 return ctx
->_Shader
->ActiveProgram
->Name
;
569 _mesa_error(ctx
, GL_INVALID_ENUM
, "glGetHandleARB");
576 * Check if a geometry shader query is valid at this time. If not, report an
577 * error and return false.
579 * From GL 3.2 section 6.1.16 (Shader and Program Queries):
581 * "If GEOMETRY_VERTICES_OUT, GEOMETRY_INPUT_TYPE, or GEOMETRY_OUTPUT_TYPE
582 * are queried for a program which has not been linked successfully, or
583 * which does not contain objects to form a geometry shader, then an
584 * INVALID_OPERATION error is generated."
587 check_gs_query(struct gl_context
*ctx
, const struct gl_shader_program
*shProg
)
589 if (shProg
->data
->LinkStatus
&&
590 shProg
->_LinkedShaders
[MESA_SHADER_GEOMETRY
] != NULL
) {
594 _mesa_error(ctx
, GL_INVALID_OPERATION
,
595 "glGetProgramv(linked geometry shader required)");
601 * Check if a tessellation control shader query is valid at this time.
602 * If not, report an error and return false.
604 * From GL 4.0 section 6.1.12 (Shader and Program Queries):
606 * "If TESS_CONTROL_OUTPUT_VERTICES is queried for a program which has
607 * not been linked successfully, or which does not contain objects to
608 * form a tessellation control shader, then an INVALID_OPERATION error is
612 check_tcs_query(struct gl_context
*ctx
, const struct gl_shader_program
*shProg
)
614 if (shProg
->data
->LinkStatus
&&
615 shProg
->_LinkedShaders
[MESA_SHADER_TESS_CTRL
] != NULL
) {
619 _mesa_error(ctx
, GL_INVALID_OPERATION
,
620 "glGetProgramv(linked tessellation control shader required)");
626 * Check if a tessellation evaluation shader query is valid at this time.
627 * If not, report an error and return false.
629 * From GL 4.0 section 6.1.12 (Shader and Program Queries):
631 * "If any of the pname values in this paragraph are queried for a program
632 * which has not been linked successfully, or which does not contain
633 * objects to form a tessellation evaluation shader, then an
634 * INVALID_OPERATION error is generated."
638 check_tes_query(struct gl_context
*ctx
, const struct gl_shader_program
*shProg
)
640 if (shProg
->data
->LinkStatus
&&
641 shProg
->_LinkedShaders
[MESA_SHADER_TESS_EVAL
] != NULL
) {
645 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glGetProgramv(linked tessellation "
646 "evaluation shader required)");
651 * Return the length of a string, or 0 if the pointer passed in is NULL
653 static size_t strlen_or_zero(const char *s
)
655 return s
? strlen(s
) : 0;
659 * glGetProgramiv() - get shader program state.
660 * Note that this is for GLSL shader programs, not ARB vertex/fragment
661 * programs (see glGetProgramivARB).
664 get_programiv(struct gl_context
*ctx
, GLuint program
, GLenum pname
,
667 struct gl_shader_program
*shProg
668 = _mesa_lookup_shader_program_err(ctx
, program
, "glGetProgramiv(program)");
670 /* Is transform feedback available in this context?
673 (ctx
->API
== API_OPENGL_COMPAT
&& ctx
->Extensions
.EXT_transform_feedback
)
674 || ctx
->API
== API_OPENGL_CORE
675 || _mesa_is_gles3(ctx
);
677 /* True if geometry shaders (of the form that was adopted into GLSL 1.50
678 * and GL 3.2) are available in this context
680 const bool has_gs
= _mesa_has_geometry_shaders(ctx
);
681 const bool has_tess
= _mesa_has_tessellation(ctx
);
683 /* Are uniform buffer objects available in this context?
686 (ctx
->API
== API_OPENGL_COMPAT
&&
687 ctx
->Extensions
.ARB_uniform_buffer_object
)
688 || ctx
->API
== API_OPENGL_CORE
689 || _mesa_is_gles3(ctx
);
696 case GL_DELETE_STATUS
:
697 *params
= shProg
->DeletePending
;
699 case GL_COMPLETION_STATUS_ARB
:
700 if (ctx
->Driver
.GetShaderProgramCompletionStatus
)
701 *params
= ctx
->Driver
.GetShaderProgramCompletionStatus(ctx
, shProg
);
706 *params
= shProg
->data
->LinkStatus
? GL_TRUE
: GL_FALSE
;
708 case GL_VALIDATE_STATUS
:
709 *params
= shProg
->data
->Validated
;
711 case GL_INFO_LOG_LENGTH
:
712 *params
= (shProg
->data
->InfoLog
&& shProg
->data
->InfoLog
[0] != '\0') ?
713 strlen(shProg
->data
->InfoLog
) + 1 : 0;
715 case GL_ATTACHED_SHADERS
:
716 *params
= shProg
->NumShaders
;
718 case GL_ACTIVE_ATTRIBUTES
:
719 *params
= _mesa_count_active_attribs(shProg
);
721 case GL_ACTIVE_ATTRIBUTE_MAX_LENGTH
:
722 *params
= _mesa_longest_attribute_name_length(shProg
);
724 case GL_ACTIVE_UNIFORMS
: {
726 const unsigned num_uniforms
=
727 shProg
->data
->NumUniformStorage
- shProg
->data
->NumHiddenUniforms
;
728 for (*params
= 0, i
= 0; i
< num_uniforms
; i
++) {
729 if (!shProg
->data
->UniformStorage
[i
].is_shader_storage
)
734 case GL_ACTIVE_UNIFORM_MAX_LENGTH
: {
737 const unsigned num_uniforms
=
738 shProg
->data
->NumUniformStorage
- shProg
->data
->NumHiddenUniforms
;
740 for (i
= 0; i
< num_uniforms
; i
++) {
741 if (shProg
->data
->UniformStorage
[i
].is_shader_storage
)
744 /* From ARB_gl_spirv spec:
746 * "If pname is ACTIVE_UNIFORM_MAX_LENGTH, the length of the
747 * longest active uniform name, including a null terminator, is
748 * returned. If no active uniforms exist, zero is returned. If no
749 * name reflection information is available, one is returned."
751 * We are setting 0 here, as below it will add 1 for the NUL character.
753 const GLint base_len
=
754 strlen_or_zero(shProg
->data
->UniformStorage
[i
].name
);
756 /* Add one for the terminating NUL character for a non-array, and
757 * 4 for the "[0]" and the NUL for an array.
759 const GLint len
= base_len
+ 1 +
760 ((shProg
->data
->UniformStorage
[i
].array_elements
!= 0) ? 3 : 0);
769 case GL_TRANSFORM_FEEDBACK_VARYINGS
:
773 /* Check first if there are transform feedback varyings specified in the
774 * shader (ARB_enhanced_layouts). If there isn't any, return the number of
775 * varyings specified using the API.
777 if (shProg
->last_vert_prog
&&
778 shProg
->last_vert_prog
->sh
.LinkedTransformFeedback
->NumVarying
> 0)
780 shProg
->last_vert_prog
->sh
.LinkedTransformFeedback
->NumVarying
;
782 *params
= shProg
->TransformFeedback
.NumVarying
;
784 case GL_TRANSFORM_FEEDBACK_VARYING_MAX_LENGTH
: {
787 bool in_shader_varyings
;
793 /* Check first if there are transform feedback varyings specified in the
794 * shader (ARB_enhanced_layouts). If there isn't any, use the ones
795 * specified using the API.
797 in_shader_varyings
= shProg
->last_vert_prog
&&
798 shProg
->last_vert_prog
->sh
.LinkedTransformFeedback
->NumVarying
> 0;
800 num_varying
= in_shader_varyings
?
801 shProg
->last_vert_prog
->sh
.LinkedTransformFeedback
->NumVarying
:
802 shProg
->TransformFeedback
.NumVarying
;
804 for (i
= 0; i
< num_varying
; i
++) {
805 const char *name
= in_shader_varyings
?
806 shProg
->last_vert_prog
->sh
.LinkedTransformFeedback
->Varyings
[i
].Name
807 : shProg
->TransformFeedback
.VaryingNames
[i
];
809 /* Add one for the terminating NUL character. We have to use
810 * strlen_or_zero, as for shaders constructed from SPIR-V binaries,
811 * it is possible that no name reflection information is available.
813 const GLint len
= strlen_or_zero(name
) + 1;
822 case GL_TRANSFORM_FEEDBACK_BUFFER_MODE
:
825 *params
= shProg
->TransformFeedback
.BufferMode
;
827 case GL_GEOMETRY_VERTICES_OUT
:
830 if (check_gs_query(ctx
, shProg
)) {
831 *params
= shProg
->_LinkedShaders
[MESA_SHADER_GEOMETRY
]->
832 Program
->info
.gs
.vertices_out
;
835 case GL_GEOMETRY_SHADER_INVOCATIONS
:
836 if (!has_gs
|| !ctx
->Extensions
.ARB_gpu_shader5
)
838 if (check_gs_query(ctx
, shProg
)) {
839 *params
= shProg
->_LinkedShaders
[MESA_SHADER_GEOMETRY
]->
840 Program
->info
.gs
.invocations
;
843 case GL_GEOMETRY_INPUT_TYPE
:
846 if (check_gs_query(ctx
, shProg
)) {
847 *params
= shProg
->_LinkedShaders
[MESA_SHADER_GEOMETRY
]->
848 Program
->info
.gs
.input_primitive
;
851 case GL_GEOMETRY_OUTPUT_TYPE
:
854 if (check_gs_query(ctx
, shProg
)) {
855 *params
= shProg
->_LinkedShaders
[MESA_SHADER_GEOMETRY
]->
856 Program
->info
.gs
.output_primitive
;
859 case GL_ACTIVE_UNIFORM_BLOCK_MAX_NAME_LENGTH
: {
866 for (i
= 0; i
< shProg
->data
->NumUniformBlocks
; i
++) {
867 /* Add one for the terminating NUL character. Name can be NULL, in
868 * that case, from ARB_gl_spirv:
869 * "If pname is ACTIVE_UNIFORM_BLOCK_MAX_NAME_LENGTH, the length of
870 * the longest active uniform block name, including the null
871 * terminator, is returned. If no active uniform blocks exist,
872 * zero is returned. If no name reflection information is
873 * available, one is returned."
876 strlen_or_zero(shProg
->data
->UniformBlocks
[i
].Name
) + 1;
885 case GL_ACTIVE_UNIFORM_BLOCKS
:
889 *params
= shProg
->data
->NumUniformBlocks
;
891 case GL_PROGRAM_BINARY_RETRIEVABLE_HINT
:
892 /* This enum isn't part of the OES extension for OpenGL ES 2.0. It is
893 * only available with desktop OpenGL 3.0+ with the
894 * GL_ARB_get_program_binary extension or OpenGL ES 3.0.
896 * On desktop, we ignore the 3.0+ requirement because it is silly.
898 if (!_mesa_is_desktop_gl(ctx
) && !_mesa_is_gles3(ctx
))
901 *params
= shProg
->BinaryRetrievableHint
;
903 case GL_PROGRAM_BINARY_LENGTH
:
904 if (ctx
->Const
.NumProgramBinaryFormats
== 0 || !shProg
->data
->LinkStatus
) {
907 _mesa_get_program_binary_length(ctx
, shProg
, params
);
910 case GL_ACTIVE_ATOMIC_COUNTER_BUFFERS
:
911 if (!ctx
->Extensions
.ARB_shader_atomic_counters
)
914 *params
= shProg
->data
->NumAtomicBuffers
;
916 case GL_COMPUTE_WORK_GROUP_SIZE
: {
918 if (!_mesa_has_compute_shaders(ctx
))
920 if (!shProg
->data
->LinkStatus
) {
921 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glGetProgramiv(program not "
925 if (shProg
->_LinkedShaders
[MESA_SHADER_COMPUTE
] == NULL
) {
926 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glGetProgramiv(no compute "
930 for (i
= 0; i
< 3; i
++)
931 params
[i
] = shProg
->_LinkedShaders
[MESA_SHADER_COMPUTE
]->
932 Program
->info
.cs
.local_size
[i
];
935 case GL_PROGRAM_SEPARABLE
:
936 /* If the program has not been linked, return initial value 0. */
937 *params
= (shProg
->data
->LinkStatus
== LINKING_FAILURE
) ? 0 : shProg
->SeparateShader
;
940 /* ARB_tessellation_shader */
941 case GL_TESS_CONTROL_OUTPUT_VERTICES
:
944 if (check_tcs_query(ctx
, shProg
)) {
945 *params
= shProg
->_LinkedShaders
[MESA_SHADER_TESS_CTRL
]->
946 Program
->info
.tess
.tcs_vertices_out
;
949 case GL_TESS_GEN_MODE
:
952 if (check_tes_query(ctx
, shProg
)) {
953 *params
= shProg
->_LinkedShaders
[MESA_SHADER_TESS_EVAL
]->
954 Program
->info
.tess
.primitive_mode
;
957 case GL_TESS_GEN_SPACING
:
960 if (check_tes_query(ctx
, shProg
)) {
961 const struct gl_linked_shader
*tes
=
962 shProg
->_LinkedShaders
[MESA_SHADER_TESS_EVAL
];
963 switch (tes
->Program
->info
.tess
.spacing
) {
964 case TESS_SPACING_EQUAL
:
967 case TESS_SPACING_FRACTIONAL_ODD
:
968 *params
= GL_FRACTIONAL_ODD
;
970 case TESS_SPACING_FRACTIONAL_EVEN
:
971 *params
= GL_FRACTIONAL_EVEN
;
973 case TESS_SPACING_UNSPECIFIED
:
979 case GL_TESS_GEN_VERTEX_ORDER
:
982 if (check_tes_query(ctx
, shProg
)) {
983 *params
= shProg
->_LinkedShaders
[MESA_SHADER_TESS_EVAL
]->
984 Program
->info
.tess
.ccw
? GL_CCW
: GL_CW
;
987 case GL_TESS_GEN_POINT_MODE
:
990 if (check_tes_query(ctx
, shProg
)) {
991 *params
= shProg
->_LinkedShaders
[MESA_SHADER_TESS_EVAL
]->
992 Program
->info
.tess
.point_mode
? GL_TRUE
: GL_FALSE
;
999 _mesa_error(ctx
, GL_INVALID_ENUM
, "glGetProgramiv(pname=%s)",
1000 _mesa_enum_to_string(pname
));
1005 * glGetShaderiv() - get GLSL shader state
1008 get_shaderiv(struct gl_context
*ctx
, GLuint name
, GLenum pname
, GLint
*params
)
1010 struct gl_shader
*shader
=
1011 _mesa_lookup_shader_err(ctx
, name
, "glGetShaderiv");
1018 case GL_SHADER_TYPE
:
1019 *params
= shader
->Type
;
1021 case GL_DELETE_STATUS
:
1022 *params
= shader
->DeletePending
;
1024 case GL_COMPLETION_STATUS_ARB
:
1025 /* _mesa_glsl_compile_shader is not offloaded to other threads. */
1028 case GL_COMPILE_STATUS
:
1029 *params
= shader
->CompileStatus
? GL_TRUE
: GL_FALSE
;
1031 case GL_INFO_LOG_LENGTH
:
1032 *params
= (shader
->InfoLog
&& shader
->InfoLog
[0] != '\0') ?
1033 strlen(shader
->InfoLog
) + 1 : 0;
1035 case GL_SHADER_SOURCE_LENGTH
:
1036 *params
= shader
->Source
? strlen((char *) shader
->Source
) + 1 : 0;
1038 case GL_SPIR_V_BINARY_ARB
:
1039 *params
= (shader
->spirv_data
!= NULL
);
1042 _mesa_error(ctx
, GL_INVALID_ENUM
, "glGetShaderiv(pname)");
1049 get_program_info_log(struct gl_context
*ctx
, GLuint program
, GLsizei bufSize
,
1050 GLsizei
*length
, GLchar
*infoLog
)
1052 struct gl_shader_program
*shProg
;
1054 /* Section 2.5 GL Errors (page 18) of the OpenGL ES 3.0.4 spec and
1055 * section 2.3.1 (Errors) of the OpenGL 4.5 spec say:
1057 * "If a negative number is provided where an argument of type sizei or
1058 * sizeiptr is specified, an INVALID_VALUE error is generated."
1061 _mesa_error(ctx
, GL_INVALID_VALUE
, "glGetProgramInfoLog(bufSize < 0)");
1065 shProg
= _mesa_lookup_shader_program_err(ctx
, program
,
1066 "glGetProgramInfoLog(program)");
1071 _mesa_copy_string(infoLog
, bufSize
, length
, shProg
->data
->InfoLog
);
1076 get_shader_info_log(struct gl_context
*ctx
, GLuint shader
, GLsizei bufSize
,
1077 GLsizei
*length
, GLchar
*infoLog
)
1079 struct gl_shader
*sh
;
1081 /* Section 2.5 GL Errors (page 18) of the OpenGL ES 3.0.4 spec and
1082 * section 2.3.1 (Errors) of the OpenGL 4.5 spec say:
1084 * "If a negative number is provided where an argument of type sizei or
1085 * sizeiptr is specified, an INVALID_VALUE error is generated."
1088 _mesa_error(ctx
, GL_INVALID_VALUE
, "glGetShaderInfoLog(bufSize < 0)");
1092 sh
= _mesa_lookup_shader_err(ctx
, shader
, "glGetShaderInfoLog(shader)");
1097 _mesa_copy_string(infoLog
, bufSize
, length
, sh
->InfoLog
);
1102 * Return shader source code.
1105 get_shader_source(struct gl_context
*ctx
, GLuint shader
, GLsizei maxLength
,
1106 GLsizei
*length
, GLchar
*sourceOut
)
1108 struct gl_shader
*sh
;
1110 if (maxLength
< 0) {
1111 _mesa_error(ctx
, GL_INVALID_VALUE
, "glGetShaderSource(bufSize < 0)");
1115 sh
= _mesa_lookup_shader_err(ctx
, shader
, "glGetShaderSource");
1119 _mesa_copy_string(sourceOut
, maxLength
, length
, sh
->Source
);
1124 * Set/replace shader source code. A helper function used by
1125 * glShaderSource[ARB].
1128 set_shader_source(struct gl_shader
*sh
, const GLchar
*source
)
1132 /* The GL_ARB_gl_spirv spec adds the following to the end of the description
1135 * "If <shader> was previously associated with a SPIR-V module (via the
1136 * ShaderBinary command), that association is broken. Upon successful
1137 * completion of this command the SPIR_V_BINARY_ARB state of <shader>
1140 _mesa_shader_spirv_data_reference(&sh
->spirv_data
, NULL
);
1142 if (sh
->CompileStatus
== COMPILE_SKIPPED
&& !sh
->FallbackSource
) {
1143 /* If shader was previously compiled back-up the source in case of cache
1146 sh
->FallbackSource
= sh
->Source
;
1147 sh
->Source
= source
;
1149 /* free old shader source string and install new one */
1150 free((void *)sh
->Source
);
1151 sh
->Source
= source
;
1155 sh
->SourceChecksum
= util_hash_crc32(sh
->Source
, strlen(sh
->Source
));
1160 ensure_builtin_types(struct gl_context
*ctx
)
1162 if (!ctx
->shader_builtin_ref
) {
1163 _mesa_glsl_builtin_functions_init_or_ref();
1164 ctx
->shader_builtin_ref
= true;
1172 _mesa_compile_shader(struct gl_context
*ctx
, struct gl_shader
*sh
)
1177 /* The GL_ARB_gl_spirv spec says:
1179 * "Add a new error for the CompileShader command:
1181 * An INVALID_OPERATION error is generated if the SPIR_V_BINARY_ARB
1182 * state of <shader> is TRUE."
1184 if (sh
->spirv_data
) {
1185 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glCompileShader(SPIR-V)");
1190 /* If the user called glCompileShader without first calling
1191 * glShaderSource, we should fail to compile, but not raise a GL_ERROR.
1193 sh
->CompileStatus
= COMPILE_FAILURE
;
1195 if (ctx
->_Shader
->Flags
& GLSL_DUMP
) {
1196 _mesa_log("GLSL source for %s shader %d:\n",
1197 _mesa_shader_stage_to_string(sh
->Stage
), sh
->Name
);
1198 _mesa_log("%s\n", sh
->Source
);
1201 ensure_builtin_types(ctx
);
1203 /* this call will set the shader->CompileStatus field to indicate if
1204 * compilation was successful.
1206 _mesa_glsl_compile_shader(ctx
, sh
, false, false, false);
1208 if (ctx
->_Shader
->Flags
& GLSL_LOG
) {
1209 _mesa_write_shader_to_file(sh
);
1212 if (ctx
->_Shader
->Flags
& GLSL_DUMP
) {
1213 if (sh
->CompileStatus
) {
1215 _mesa_log("GLSL IR for shader %d:\n", sh
->Name
);
1216 _mesa_print_ir(_mesa_get_log_file(), sh
->ir
, NULL
);
1218 _mesa_log("No GLSL IR for shader %d (shader may be from "
1219 "cache)\n", sh
->Name
);
1223 _mesa_log("GLSL shader %d failed to compile.\n", sh
->Name
);
1225 if (sh
->InfoLog
&& sh
->InfoLog
[0] != 0) {
1226 _mesa_log("GLSL shader %d info log:\n", sh
->Name
);
1227 _mesa_log("%s\n", sh
->InfoLog
);
1232 if (!sh
->CompileStatus
) {
1233 if (ctx
->_Shader
->Flags
& GLSL_DUMP_ON_ERROR
) {
1234 _mesa_log("GLSL source for %s shader %d:\n",
1235 _mesa_shader_stage_to_string(sh
->Stage
), sh
->Name
);
1236 _mesa_log("%s\n", sh
->Source
);
1237 _mesa_log("Info Log:\n%s\n", sh
->InfoLog
);
1240 if (ctx
->_Shader
->Flags
& GLSL_REPORT_ERRORS
) {
1241 _mesa_debug(ctx
, "Error compiling shader %u:\n%s\n",
1242 sh
->Name
, sh
->InfoLog
);
1249 * Link a program's shaders.
1251 static ALWAYS_INLINE
void
1252 link_program(struct gl_context
*ctx
, struct gl_shader_program
*shProg
,
1259 /* From the ARB_transform_feedback2 specification:
1260 * "The error INVALID_OPERATION is generated by LinkProgram if <program>
1261 * is the name of a program being used by one or more transform feedback
1262 * objects, even if the objects are not currently bound or are paused."
1264 if (_mesa_transform_feedback_is_using_program(ctx
, shProg
)) {
1265 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1266 "glLinkProgram(transform feedback is using the program)");
1271 unsigned programs_in_use
= 0;
1273 for (unsigned stage
= 0; stage
< MESA_SHADER_STAGES
; stage
++) {
1274 if (ctx
->_Shader
->CurrentProgram
[stage
] &&
1275 ctx
->_Shader
->CurrentProgram
[stage
]->Id
== shProg
->Name
) {
1276 programs_in_use
|= 1 << stage
;
1280 ensure_builtin_types(ctx
);
1282 FLUSH_VERTICES(ctx
, 0);
1283 _mesa_glsl_link_shader(ctx
, shProg
);
1285 /* From section 7.3 (Program Objects) of the OpenGL 4.5 spec:
1287 * "If LinkProgram or ProgramBinary successfully re-links a program
1288 * object that is active for any shader stage, then the newly generated
1289 * executable code will be installed as part of the current rendering
1290 * state for all shader stages where the program is active.
1291 * Additionally, the newly generated executable code is made part of
1292 * the state of any program pipeline for all stages where the program
1295 if (shProg
->data
->LinkStatus
&& programs_in_use
) {
1296 while (programs_in_use
) {
1297 const int stage
= u_bit_scan(&programs_in_use
);
1299 struct gl_program
*prog
= NULL
;
1300 if (shProg
->_LinkedShaders
[stage
])
1301 prog
= shProg
->_LinkedShaders
[stage
]->Program
;
1303 _mesa_use_program(ctx
, stage
, shProg
, prog
, ctx
->_Shader
);
1307 /* Capture .shader_test files. */
1308 const char *capture_path
= _mesa_get_shader_capture_path();
1309 if (shProg
->Name
!= 0 && shProg
->Name
!= ~0 && capture_path
!= NULL
) {
1310 /* Find an unused filename. */
1312 char *filename
= NULL
;
1313 for (unsigned i
= 0;; i
++) {
1315 filename
= ralloc_asprintf(NULL
, "%s/%u-%u.shader_test",
1316 capture_path
, shProg
->Name
, i
);
1318 filename
= ralloc_asprintf(NULL
, "%s/%u.shader_test",
1319 capture_path
, shProg
->Name
);
1321 file
= os_file_create_unique(filename
, 0644);
1324 /* If we are failing for another reason than "this filename already
1325 * exists", we are likely to fail again with another filename, so
1326 * let's just give up */
1327 if (errno
!= EEXIST
)
1329 ralloc_free(filename
);
1332 fprintf(file
, "[require]\nGLSL%s >= %u.%02u\n",
1333 shProg
->IsES
? " ES" : "",
1334 shProg
->data
->Version
/ 100, shProg
->data
->Version
% 100);
1335 if (shProg
->SeparateShader
)
1336 fprintf(file
, "GL_ARB_separate_shader_objects\nSSO ENABLED\n");
1337 fprintf(file
, "\n");
1339 for (unsigned i
= 0; i
< shProg
->NumShaders
; i
++) {
1340 fprintf(file
, "[%s shader]\n%s\n",
1341 _mesa_shader_stage_to_string(shProg
->Shaders
[i
]->Stage
),
1342 shProg
->Shaders
[i
]->Source
);
1346 _mesa_warning(ctx
, "Failed to open %s", filename
);
1349 ralloc_free(filename
);
1352 if (shProg
->data
->LinkStatus
== LINKING_FAILURE
&&
1353 (ctx
->_Shader
->Flags
& GLSL_REPORT_ERRORS
)) {
1354 _mesa_debug(ctx
, "Error linking program %u:\n%s\n",
1355 shProg
->Name
, shProg
->data
->InfoLog
);
1358 _mesa_update_vertex_processing_mode(ctx
);
1360 shProg
->BinaryRetrievableHint
= shProg
->BinaryRetrievableHintPending
;
1366 printf("Link %u shaders in program %u: %s\n",
1367 shProg
->NumShaders
, shProg
->Name
,
1368 shProg
->data
->LinkStatus
? "Success" : "Failed");
1370 for (i
= 0; i
< shProg
->NumShaders
; i
++) {
1371 printf(" shader %u, stage %u\n",
1372 shProg
->Shaders
[i
]->Name
,
1373 shProg
->Shaders
[i
]->Stage
);
1380 link_program_error(struct gl_context
*ctx
, struct gl_shader_program
*shProg
)
1382 link_program(ctx
, shProg
, false);
1387 link_program_no_error(struct gl_context
*ctx
, struct gl_shader_program
*shProg
)
1389 link_program(ctx
, shProg
, true);
1394 _mesa_link_program(struct gl_context
*ctx
, struct gl_shader_program
*shProg
)
1396 link_program_error(ctx
, shProg
);
1401 * Print basic shader info (for debug).
1404 print_shader_info(const struct gl_shader_program
*shProg
)
1408 printf("Mesa: glUseProgram(%u)\n", shProg
->Name
);
1409 for (i
= 0; i
< shProg
->NumShaders
; i
++) {
1411 printf(" %s shader %u, checksum %u\n",
1412 _mesa_shader_stage_to_string(shProg
->Shaders
[i
]->Stage
),
1413 shProg
->Shaders
[i
]->Name
,
1414 shProg
->Shaders
[i
]->SourceChecksum
);
1416 printf(" %s shader %u\n",
1417 _mesa_shader_stage_to_string(shProg
->Shaders
[i
]->Stage
),
1418 shProg
->Shaders
[i
]->Name
);
1421 if (shProg
->_LinkedShaders
[MESA_SHADER_VERTEX
])
1422 printf(" vert prog %u\n",
1423 shProg
->_LinkedShaders
[MESA_SHADER_VERTEX
]->Program
->Id
);
1424 if (shProg
->_LinkedShaders
[MESA_SHADER_FRAGMENT
])
1425 printf(" frag prog %u\n",
1426 shProg
->_LinkedShaders
[MESA_SHADER_FRAGMENT
]->Program
->Id
);
1427 if (shProg
->_LinkedShaders
[MESA_SHADER_GEOMETRY
])
1428 printf(" geom prog %u\n",
1429 shProg
->_LinkedShaders
[MESA_SHADER_GEOMETRY
]->Program
->Id
);
1430 if (shProg
->_LinkedShaders
[MESA_SHADER_TESS_CTRL
])
1431 printf(" tesc prog %u\n",
1432 shProg
->_LinkedShaders
[MESA_SHADER_TESS_CTRL
]->Program
->Id
);
1433 if (shProg
->_LinkedShaders
[MESA_SHADER_TESS_EVAL
])
1434 printf(" tese prog %u\n",
1435 shProg
->_LinkedShaders
[MESA_SHADER_TESS_EVAL
]->Program
->Id
);
1440 * Use the named shader program for subsequent glUniform calls
1443 _mesa_active_program(struct gl_context
*ctx
, struct gl_shader_program
*shProg
,
1446 if ((shProg
!= NULL
) && !shProg
->data
->LinkStatus
) {
1447 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1448 "%s(program %u not linked)", caller
, shProg
->Name
);
1452 if (ctx
->Shader
.ActiveProgram
!= shProg
) {
1453 _mesa_reference_shader_program(ctx
, &ctx
->Shader
.ActiveProgram
, shProg
);
1459 * Use the named shader program for subsequent rendering.
1462 _mesa_use_shader_program(struct gl_context
*ctx
,
1463 struct gl_shader_program
*shProg
)
1465 for (int i
= 0; i
< MESA_SHADER_STAGES
; i
++) {
1466 struct gl_program
*new_prog
= NULL
;
1467 if (shProg
&& shProg
->_LinkedShaders
[i
])
1468 new_prog
= shProg
->_LinkedShaders
[i
]->Program
;
1469 _mesa_use_program(ctx
, i
, shProg
, new_prog
, &ctx
->Shader
);
1471 _mesa_active_program(ctx
, shProg
, "glUseProgram");
1476 * Do validation of the given shader program.
1477 * \param errMsg returns error message if validation fails.
1478 * \return GL_TRUE if valid, GL_FALSE if invalid (and set errMsg)
1481 validate_shader_program(const struct gl_shader_program
*shProg
,
1484 if (!shProg
->data
->LinkStatus
) {
1488 /* From the GL spec, a program is invalid if any of these are true:
1490 any two active samplers in the current program object are of
1491 different types, but refer to the same texture image unit,
1493 any active sampler in the current program object refers to a texture
1494 image unit where fixed-function fragment processing accesses a
1495 texture target that does not match the sampler type, or
1497 the sum of the number of active samplers in the program and the
1498 number of texture image units enabled for fixed-function fragment
1499 processing exceeds the combined limit on the total number of texture
1500 image units allowed.
1504 * Check: any two active samplers in the current program object are of
1505 * different types, but refer to the same texture image unit,
1507 if (!_mesa_sampler_uniforms_are_valid(shProg
, errMsg
, 100))
1515 * Called via glValidateProgram()
1518 validate_program(struct gl_context
*ctx
, GLuint program
)
1520 struct gl_shader_program
*shProg
;
1521 char errMsg
[100] = "";
1523 shProg
= _mesa_lookup_shader_program_err(ctx
, program
, "glValidateProgram");
1528 shProg
->data
->Validated
= validate_shader_program(shProg
, errMsg
);
1529 if (!shProg
->data
->Validated
) {
1530 /* update info log */
1531 if (shProg
->data
->InfoLog
) {
1532 ralloc_free(shProg
->data
->InfoLog
);
1534 shProg
->data
->InfoLog
= ralloc_strdup(shProg
->data
, errMsg
);
1540 _mesa_AttachObjectARB_no_error(GLhandleARB program
, GLhandleARB shader
)
1542 GET_CURRENT_CONTEXT(ctx
);
1543 attach_shader_no_error(ctx
, program
, shader
);
1548 _mesa_AttachObjectARB(GLhandleARB program
, GLhandleARB shader
)
1550 GET_CURRENT_CONTEXT(ctx
);
1551 attach_shader_err(ctx
, program
, shader
, "glAttachObjectARB");
1556 _mesa_AttachShader_no_error(GLuint program
, GLuint shader
)
1558 GET_CURRENT_CONTEXT(ctx
);
1559 attach_shader_no_error(ctx
, program
, shader
);
1564 _mesa_AttachShader(GLuint program
, GLuint shader
)
1566 GET_CURRENT_CONTEXT(ctx
);
1567 attach_shader_err(ctx
, program
, shader
, "glAttachShader");
1572 _mesa_CompileShader(GLuint shaderObj
)
1574 GET_CURRENT_CONTEXT(ctx
);
1575 if (MESA_VERBOSE
& VERBOSE_API
)
1576 _mesa_debug(ctx
, "glCompileShader %u\n", shaderObj
);
1577 _mesa_compile_shader(ctx
, _mesa_lookup_shader_err(ctx
, shaderObj
,
1578 "glCompileShader"));
1583 _mesa_CreateShader_no_error(GLenum type
)
1585 GET_CURRENT_CONTEXT(ctx
);
1586 return create_shader(ctx
, type
);
1591 _mesa_CreateShader(GLenum type
)
1593 GET_CURRENT_CONTEXT(ctx
);
1595 if (MESA_VERBOSE
& VERBOSE_API
)
1596 _mesa_debug(ctx
, "glCreateShader %s\n", _mesa_enum_to_string(type
));
1598 return create_shader_err(ctx
, type
, "glCreateShader");
1602 GLhandleARB GLAPIENTRY
1603 _mesa_CreateShaderObjectARB_no_error(GLenum type
)
1605 GET_CURRENT_CONTEXT(ctx
);
1606 return create_shader(ctx
, type
);
1610 GLhandleARB GLAPIENTRY
1611 _mesa_CreateShaderObjectARB(GLenum type
)
1613 GET_CURRENT_CONTEXT(ctx
);
1614 return create_shader_err(ctx
, type
, "glCreateShaderObjectARB");
1619 _mesa_CreateProgram(void)
1621 GET_CURRENT_CONTEXT(ctx
);
1622 if (MESA_VERBOSE
& VERBOSE_API
)
1623 _mesa_debug(ctx
, "glCreateProgram\n");
1624 return create_shader_program(ctx
);
1628 GLhandleARB GLAPIENTRY
1629 _mesa_CreateProgramObjectARB(void)
1631 GET_CURRENT_CONTEXT(ctx
);
1632 return create_shader_program(ctx
);
1637 _mesa_DeleteObjectARB(GLhandleARB obj
)
1639 if (MESA_VERBOSE
& VERBOSE_API
) {
1640 GET_CURRENT_CONTEXT(ctx
);
1641 _mesa_debug(ctx
, "glDeleteObjectARB(%lu)\n", (unsigned long)obj
);
1645 GET_CURRENT_CONTEXT(ctx
);
1646 FLUSH_VERTICES(ctx
, 0);
1647 if (is_program(ctx
, obj
)) {
1648 delete_shader_program(ctx
, obj
);
1650 else if (is_shader(ctx
, obj
)) {
1651 delete_shader(ctx
, obj
);
1661 _mesa_DeleteProgram(GLuint name
)
1664 GET_CURRENT_CONTEXT(ctx
);
1665 FLUSH_VERTICES(ctx
, 0);
1666 delete_shader_program(ctx
, name
);
1672 _mesa_DeleteShader(GLuint name
)
1675 GET_CURRENT_CONTEXT(ctx
);
1676 FLUSH_VERTICES(ctx
, 0);
1677 delete_shader(ctx
, name
);
1683 _mesa_DetachObjectARB_no_error(GLhandleARB program
, GLhandleARB shader
)
1685 GET_CURRENT_CONTEXT(ctx
);
1686 detach_shader_no_error(ctx
, program
, shader
);
1691 _mesa_DetachObjectARB(GLhandleARB program
, GLhandleARB shader
)
1693 GET_CURRENT_CONTEXT(ctx
);
1694 detach_shader_error(ctx
, program
, shader
);
1699 _mesa_DetachShader_no_error(GLuint program
, GLuint shader
)
1701 GET_CURRENT_CONTEXT(ctx
);
1702 detach_shader_no_error(ctx
, program
, shader
);
1707 _mesa_DetachShader(GLuint program
, GLuint shader
)
1709 GET_CURRENT_CONTEXT(ctx
);
1710 detach_shader_error(ctx
, program
, shader
);
1715 _mesa_GetAttachedObjectsARB(GLhandleARB container
, GLsizei maxCount
,
1716 GLsizei
* count
, GLhandleARB
* obj
)
1718 GET_CURRENT_CONTEXT(ctx
);
1719 get_attached_shaders(ctx
, (GLuint
)container
, maxCount
, count
, NULL
, obj
);
1724 _mesa_GetAttachedShaders(GLuint program
, GLsizei maxCount
,
1725 GLsizei
*count
, GLuint
*obj
)
1727 GET_CURRENT_CONTEXT(ctx
);
1728 get_attached_shaders(ctx
, program
, maxCount
, count
, obj
, NULL
);
1733 _mesa_GetInfoLogARB(GLhandleARB object
, GLsizei maxLength
, GLsizei
* length
,
1734 GLcharARB
* infoLog
)
1736 GET_CURRENT_CONTEXT(ctx
);
1737 if (is_program(ctx
, object
)) {
1738 get_program_info_log(ctx
, object
, maxLength
, length
, infoLog
);
1740 else if (is_shader(ctx
, object
)) {
1741 get_shader_info_log(ctx
, object
, maxLength
, length
, infoLog
);
1744 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glGetInfoLogARB");
1750 _mesa_GetObjectParameterivARB(GLhandleARB object
, GLenum pname
, GLint
*params
)
1752 GET_CURRENT_CONTEXT(ctx
);
1753 /* Implement in terms of GetProgramiv, GetShaderiv */
1754 if (is_program(ctx
, object
)) {
1755 if (pname
== GL_OBJECT_TYPE_ARB
) {
1756 *params
= GL_PROGRAM_OBJECT_ARB
;
1759 get_programiv(ctx
, object
, pname
, params
);
1762 else if (is_shader(ctx
, object
)) {
1763 if (pname
== GL_OBJECT_TYPE_ARB
) {
1764 *params
= GL_SHADER_OBJECT_ARB
;
1767 get_shaderiv(ctx
, object
, pname
, params
);
1771 _mesa_error(ctx
, GL_INVALID_VALUE
, "glGetObjectParameterivARB");
1777 _mesa_GetObjectParameterfvARB(GLhandleARB object
, GLenum pname
,
1780 GLint iparams
[1] = {0}; /* XXX is one element enough? */
1781 _mesa_GetObjectParameterivARB(object
, pname
, iparams
);
1782 params
[0] = (GLfloat
) iparams
[0];
1787 _mesa_GetProgramiv(GLuint program
, GLenum pname
, GLint
*params
)
1789 GET_CURRENT_CONTEXT(ctx
);
1790 get_programiv(ctx
, program
, pname
, params
);
1795 _mesa_GetShaderiv(GLuint shader
, GLenum pname
, GLint
*params
)
1797 GET_CURRENT_CONTEXT(ctx
);
1798 get_shaderiv(ctx
, shader
, pname
, params
);
1803 _mesa_GetProgramInfoLog(GLuint program
, GLsizei bufSize
,
1804 GLsizei
*length
, GLchar
*infoLog
)
1806 GET_CURRENT_CONTEXT(ctx
);
1807 get_program_info_log(ctx
, program
, bufSize
, length
, infoLog
);
1812 _mesa_GetShaderInfoLog(GLuint shader
, GLsizei bufSize
,
1813 GLsizei
*length
, GLchar
*infoLog
)
1815 GET_CURRENT_CONTEXT(ctx
);
1816 get_shader_info_log(ctx
, shader
, bufSize
, length
, infoLog
);
1821 _mesa_GetShaderSource(GLuint shader
, GLsizei maxLength
,
1822 GLsizei
*length
, GLchar
*sourceOut
)
1824 GET_CURRENT_CONTEXT(ctx
);
1825 get_shader_source(ctx
, shader
, maxLength
, length
, sourceOut
);
1829 GLhandleARB GLAPIENTRY
1830 _mesa_GetHandleARB(GLenum pname
)
1832 GET_CURRENT_CONTEXT(ctx
);
1833 return get_handle(ctx
, pname
);
1837 GLboolean GLAPIENTRY
1838 _mesa_IsProgram(GLuint name
)
1840 GET_CURRENT_CONTEXT(ctx
);
1841 return is_program(ctx
, name
);
1845 GLboolean GLAPIENTRY
1846 _mesa_IsShader(GLuint name
)
1848 GET_CURRENT_CONTEXT(ctx
);
1849 return is_shader(ctx
, name
);
1854 _mesa_LinkProgram_no_error(GLuint programObj
)
1856 GET_CURRENT_CONTEXT(ctx
);
1858 struct gl_shader_program
*shProg
=
1859 _mesa_lookup_shader_program(ctx
, programObj
);
1860 link_program_no_error(ctx
, shProg
);
1865 _mesa_LinkProgram(GLuint programObj
)
1867 GET_CURRENT_CONTEXT(ctx
);
1869 if (MESA_VERBOSE
& VERBOSE_API
)
1870 _mesa_debug(ctx
, "glLinkProgram %u\n", programObj
);
1872 struct gl_shader_program
*shProg
=
1873 _mesa_lookup_shader_program_err(ctx
, programObj
, "glLinkProgram");
1874 link_program_error(ctx
, shProg
);
1877 #ifdef ENABLE_SHADER_CACHE
1879 * Generate a SHA-1 hash value string for given source string.
1882 generate_sha1(const char *source
, char sha_str
[64])
1884 unsigned char sha
[20];
1885 _mesa_sha1_compute(source
, strlen(source
), sha
);
1886 _mesa_sha1_format(sha_str
, sha
);
1890 * Construct a full path for shader replacement functionality using
1893 * <path>/<stage prefix>_<CHECKSUM>.glsl
1894 * <path>/<stage prefix>_<CHECKSUM>.arb
1897 construct_name(const gl_shader_stage stage
, const char *source
,
1901 static const char *types
[] = {
1902 "VS", "TC", "TE", "GS", "FS", "CS",
1905 const char *format
= strncmp(source
, "!!ARB", 5) ? "glsl" : "arb";
1907 generate_sha1(source
, sha
);
1908 return ralloc_asprintf(NULL
, "%s/%s_%s.%s", path
, types
[stage
], sha
, format
);
1912 * Write given shader source to a file in MESA_SHADER_DUMP_PATH.
1915 _mesa_dump_shader_source(const gl_shader_stage stage
, const char *source
)
1917 static bool path_exists
= true;
1924 dump_path
= getenv("MESA_SHADER_DUMP_PATH");
1926 path_exists
= false;
1930 char *name
= construct_name(stage
, source
, dump_path
);
1932 f
= fopen(name
, "w");
1937 GET_CURRENT_CONTEXT(ctx
);
1938 _mesa_warning(ctx
, "could not open %s for dumping shader (%s)", name
,
1945 * Read shader source code from a file.
1946 * Useful for debugging to override an app's shader.
1949 _mesa_read_shader_source(const gl_shader_stage stage
, const char *source
)
1952 static bool path_exists
= true;
1953 int len
, shader_size
= 0;
1960 read_path
= getenv("MESA_SHADER_READ_PATH");
1962 path_exists
= false;
1966 char *name
= construct_name(stage
, source
, read_path
);
1967 f
= fopen(name
, "r");
1972 /* allocate enough room for the entire shader */
1973 fseek(f
, 0, SEEK_END
);
1974 shader_size
= ftell(f
);
1976 assert(shader_size
);
1978 /* add one for terminating zero */
1981 buffer
= malloc(shader_size
);
1984 len
= fread(buffer
, 1, shader_size
, f
);
1992 #endif /* ENABLE_SHADER_CACHE */
1995 * Called via glShaderSource() and glShaderSourceARB() API functions.
1996 * Basically, concatenate the source code strings into one long string
1997 * and pass it to _mesa_shader_source().
1999 static ALWAYS_INLINE
void
2000 shader_source(struct gl_context
*ctx
, GLuint shaderObj
, GLsizei count
,
2001 const GLchar
*const *string
, const GLint
*length
, bool no_error
)
2004 GLsizei i
, totalLength
;
2006 struct gl_shader
*sh
;
2009 sh
= _mesa_lookup_shader_err(ctx
, shaderObj
, "glShaderSourceARB");
2013 if (string
== NULL
) {
2014 _mesa_error(ctx
, GL_INVALID_VALUE
, "glShaderSourceARB");
2018 sh
= _mesa_lookup_shader(ctx
, shaderObj
);
2022 * This array holds offsets of where the appropriate string ends, thus the
2023 * last element will be set to the total length of the source code.
2025 offsets
= malloc(count
* sizeof(GLint
));
2026 if (offsets
== NULL
) {
2027 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glShaderSourceARB");
2031 for (i
= 0; i
< count
; i
++) {
2032 if (!no_error
&& string
[i
] == NULL
) {
2033 free((GLvoid
*) offsets
);
2034 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2035 "glShaderSourceARB(null string)");
2038 if (length
== NULL
|| length
[i
] < 0)
2039 offsets
[i
] = strlen(string
[i
]);
2041 offsets
[i
] = length
[i
];
2042 /* accumulate string lengths */
2044 offsets
[i
] += offsets
[i
- 1];
2047 /* Total length of source string is sum off all strings plus two.
2048 * One extra byte for terminating zero, another extra byte to silence
2049 * valgrind warnings in the parser/grammer code.
2051 totalLength
= offsets
[count
- 1] + 2;
2052 source
= malloc(totalLength
* sizeof(GLcharARB
));
2053 if (source
== NULL
) {
2054 free((GLvoid
*) offsets
);
2055 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glShaderSourceARB");
2059 for (i
= 0; i
< count
; i
++) {
2060 GLint start
= (i
> 0) ? offsets
[i
- 1] : 0;
2061 memcpy(source
+ start
, string
[i
],
2062 (offsets
[i
] - start
) * sizeof(GLcharARB
));
2064 source
[totalLength
- 1] = '\0';
2065 source
[totalLength
- 2] = '\0';
2067 #ifdef ENABLE_SHADER_CACHE
2068 GLcharARB
*replacement
;
2070 /* Dump original shader source to MESA_SHADER_DUMP_PATH and replace
2071 * if corresponding entry found from MESA_SHADER_READ_PATH.
2073 _mesa_dump_shader_source(sh
->Stage
, source
);
2075 replacement
= _mesa_read_shader_source(sh
->Stage
, source
);
2078 source
= replacement
;
2080 #endif /* ENABLE_SHADER_CACHE */
2082 set_shader_source(sh
, source
);
2089 _mesa_ShaderSource_no_error(GLuint shaderObj
, GLsizei count
,
2090 const GLchar
*const *string
, const GLint
*length
)
2092 GET_CURRENT_CONTEXT(ctx
);
2093 shader_source(ctx
, shaderObj
, count
, string
, length
, true);
2098 _mesa_ShaderSource(GLuint shaderObj
, GLsizei count
,
2099 const GLchar
*const *string
, const GLint
*length
)
2101 GET_CURRENT_CONTEXT(ctx
);
2102 shader_source(ctx
, shaderObj
, count
, string
, length
, false);
2106 static ALWAYS_INLINE
void
2107 use_program(GLuint program
, bool no_error
)
2109 GET_CURRENT_CONTEXT(ctx
);
2110 struct gl_shader_program
*shProg
= NULL
;
2112 if (MESA_VERBOSE
& VERBOSE_API
)
2113 _mesa_debug(ctx
, "glUseProgram %u\n", program
);
2117 shProg
= _mesa_lookup_shader_program(ctx
, program
);
2120 if (_mesa_is_xfb_active_and_unpaused(ctx
)) {
2121 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2122 "glUseProgram(transform feedback active)");
2128 _mesa_lookup_shader_program_err(ctx
, program
, "glUseProgram");
2132 if (!shProg
->data
->LinkStatus
) {
2133 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2134 "glUseProgram(program %u not linked)", program
);
2139 if (ctx
->_Shader
->Flags
& GLSL_USE_PROG
) {
2140 print_shader_info(shProg
);
2145 /* The ARB_separate_shader_object spec says:
2147 * "The executable code for an individual shader stage is taken from
2148 * the current program for that stage. If there is a current program
2149 * object established by UseProgram, that program is considered current
2150 * for all stages. Otherwise, if there is a bound program pipeline
2151 * object (section 2.14.PPO), the program bound to the appropriate
2152 * stage of the pipeline object is considered current."
2155 /* Attach shader state to the binding point */
2156 _mesa_reference_pipeline_object(ctx
, &ctx
->_Shader
, &ctx
->Shader
);
2157 /* Update the program */
2158 _mesa_use_shader_program(ctx
, shProg
);
2160 /* Must be done first: detach the progam */
2161 _mesa_use_shader_program(ctx
, shProg
);
2162 /* Unattach shader_state binding point */
2163 _mesa_reference_pipeline_object(ctx
, &ctx
->_Shader
,
2164 ctx
->Pipeline
.Default
);
2165 /* If a pipeline was bound, rebind it */
2166 if (ctx
->Pipeline
.Current
) {
2168 _mesa_BindProgramPipeline_no_error(ctx
->Pipeline
.Current
->Name
);
2170 _mesa_BindProgramPipeline(ctx
->Pipeline
.Current
->Name
);
2174 _mesa_update_vertex_processing_mode(ctx
);
2179 _mesa_UseProgram_no_error(GLuint program
)
2181 use_program(program
, true);
2186 _mesa_UseProgram(GLuint program
)
2188 use_program(program
, false);
2193 _mesa_ValidateProgram(GLuint program
)
2195 GET_CURRENT_CONTEXT(ctx
);
2196 validate_program(ctx
, program
);
2201 * For OpenGL ES 2.0, GL_ARB_ES2_compatibility
2204 _mesa_GetShaderPrecisionFormat(GLenum shadertype
, GLenum precisiontype
,
2205 GLint
* range
, GLint
* precision
)
2207 const struct gl_program_constants
*limits
;
2208 const struct gl_precision
*p
;
2209 GET_CURRENT_CONTEXT(ctx
);
2211 switch (shadertype
) {
2212 case GL_VERTEX_SHADER
:
2213 limits
= &ctx
->Const
.Program
[MESA_SHADER_VERTEX
];
2215 case GL_FRAGMENT_SHADER
:
2216 limits
= &ctx
->Const
.Program
[MESA_SHADER_FRAGMENT
];
2219 _mesa_error(ctx
, GL_INVALID_ENUM
,
2220 "glGetShaderPrecisionFormat(shadertype)");
2224 switch (precisiontype
) {
2226 p
= &limits
->LowFloat
;
2228 case GL_MEDIUM_FLOAT
:
2229 p
= &limits
->MediumFloat
;
2232 p
= &limits
->HighFloat
;
2235 p
= &limits
->LowInt
;
2238 p
= &limits
->MediumInt
;
2241 p
= &limits
->HighInt
;
2244 _mesa_error(ctx
, GL_INVALID_ENUM
,
2245 "glGetShaderPrecisionFormat(precisiontype)");
2249 range
[0] = p
->RangeMin
;
2250 range
[1] = p
->RangeMax
;
2251 precision
[0] = p
->Precision
;
2256 * For OpenGL ES 2.0, GL_ARB_ES2_compatibility
2259 _mesa_ReleaseShaderCompiler(void)
2261 GET_CURRENT_CONTEXT(ctx
);
2263 if (ctx
->shader_builtin_ref
) {
2264 _mesa_glsl_builtin_functions_decref();
2265 ctx
->shader_builtin_ref
= false;
2271 * For OpenGL ES 2.0, GL_ARB_ES2_compatibility
2274 _mesa_ShaderBinary(GLint n
, const GLuint
* shaders
, GLenum binaryformat
,
2275 const void* binary
, GLint length
)
2277 GET_CURRENT_CONTEXT(ctx
);
2278 struct gl_shader
**sh
;
2280 /* Page 68, section 7.2 'Shader Binaries" of the of the OpenGL ES 3.1, and
2281 * page 88 of the OpenGL 4.5 specs state:
2283 * "An INVALID_VALUE error is generated if count or length is negative.
2284 * An INVALID_ENUM error is generated if binaryformat is not a supported
2285 * format returned in SHADER_BINARY_FORMATS."
2287 if (n
< 0 || length
< 0) {
2288 _mesa_error(ctx
, GL_INVALID_VALUE
, "glShaderBinary(count or length < 0)");
2292 /* Get all shader objects at once so we can make the operation
2295 if (n
> SIZE_MAX
/ sizeof(*sh
)) {
2296 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glShaderBinary(count)");
2300 sh
= alloca(sizeof(*sh
) * (size_t)n
);
2302 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glShaderBinary");
2306 for (int i
= 0; i
< n
; ++i
) {
2307 sh
[i
] = _mesa_lookup_shader_err(ctx
, shaders
[i
], "glShaderBinary");
2312 if (binaryformat
== GL_SHADER_BINARY_FORMAT_SPIR_V_ARB
) {
2313 if (!ctx
->Extensions
.ARB_gl_spirv
) {
2314 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glShaderBinary(SPIR-V)");
2316 _mesa_spirv_shader_binary(ctx
, (unsigned) n
, sh
, binary
,
2323 _mesa_error(ctx
, GL_INVALID_ENUM
, "glShaderBinary(format)");
2328 _mesa_GetProgramBinary(GLuint program
, GLsizei bufSize
, GLsizei
*length
,
2329 GLenum
*binaryFormat
, GLvoid
*binary
)
2331 struct gl_shader_program
*shProg
;
2332 GLsizei length_dummy
;
2333 GET_CURRENT_CONTEXT(ctx
);
2336 _mesa_error(ctx
, GL_INVALID_VALUE
, "glGetProgramBinary(bufSize < 0)");
2340 shProg
= _mesa_lookup_shader_program_err(ctx
, program
, "glGetProgramBinary");
2344 /* The ARB_get_program_binary spec says:
2346 * "If <length> is NULL, then no length is returned."
2348 * Ensure that length always points to valid storage to avoid multiple NULL
2349 * pointer checks below.
2352 length
= &length_dummy
;
2355 /* The ARB_get_program_binary spec says:
2357 * "When a program object's LINK_STATUS is FALSE, its program binary
2358 * length is zero, and a call to GetProgramBinary will generate an
2359 * INVALID_OPERATION error.
2361 if (!shProg
->data
->LinkStatus
) {
2362 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2363 "glGetProgramBinary(program %u not linked)",
2369 if (ctx
->Const
.NumProgramBinaryFormats
== 0) {
2371 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2372 "glGetProgramBinary(driver supports zero binary formats)");
2374 _mesa_get_program_binary(ctx
, shProg
, bufSize
, length
, binaryFormat
,
2376 assert(*length
== 0 || *binaryFormat
== GL_PROGRAM_BINARY_FORMAT_MESA
);
2381 _mesa_ProgramBinary(GLuint program
, GLenum binaryFormat
,
2382 const GLvoid
*binary
, GLsizei length
)
2384 struct gl_shader_program
*shProg
;
2385 GET_CURRENT_CONTEXT(ctx
);
2387 shProg
= _mesa_lookup_shader_program_err(ctx
, program
, "glProgramBinary");
2391 _mesa_clear_shader_program_data(ctx
, shProg
);
2392 shProg
->data
= _mesa_create_shader_program_data();
2394 /* Section 2.3.1 (Errors) of the OpenGL 4.5 spec says:
2396 * "If a negative number is provided where an argument of type sizei or
2397 * sizeiptr is specified, an INVALID_VALUE error is generated."
2400 _mesa_error(ctx
, GL_INVALID_VALUE
, "glProgramBinary(length < 0)");
2404 if (ctx
->Const
.NumProgramBinaryFormats
== 0 ||
2405 binaryFormat
!= GL_PROGRAM_BINARY_FORMAT_MESA
) {
2406 /* The ARB_get_program_binary spec says:
2408 * "<binaryFormat> and <binary> must be those returned by a previous
2409 * call to GetProgramBinary, and <length> must be the length of the
2410 * program binary as returned by GetProgramBinary or GetProgramiv with
2411 * <pname> PROGRAM_BINARY_LENGTH. Loading the program binary will fail,
2412 * setting the LINK_STATUS of <program> to FALSE, if these conditions
2415 * Since any value of binaryFormat passed "is not one of those specified as
2416 * allowable for [this] command, an INVALID_ENUM error is generated."
2418 shProg
->data
->LinkStatus
= LINKING_FAILURE
;
2419 _mesa_error(ctx
, GL_INVALID_ENUM
, "glProgramBinary");
2421 _mesa_program_binary(ctx
, shProg
, binaryFormat
, binary
, length
);
2426 static ALWAYS_INLINE
void
2427 program_parameteri(struct gl_context
*ctx
, struct gl_shader_program
*shProg
,
2428 GLuint pname
, GLint value
, bool no_error
)
2431 case GL_PROGRAM_BINARY_RETRIEVABLE_HINT
:
2432 /* This enum isn't part of the OES extension for OpenGL ES 2.0, but it
2433 * is part of OpenGL ES 3.0. For the ES2 case, this function shouldn't
2434 * even be in the dispatch table, so we shouldn't need to expclicitly
2437 * On desktop, we ignore the 3.0+ requirement because it is silly.
2440 /* The ARB_get_program_binary extension spec says:
2442 * "An INVALID_VALUE error is generated if the <value> argument to
2443 * ProgramParameteri is not TRUE or FALSE."
2445 if (!no_error
&& value
!= GL_TRUE
&& value
!= GL_FALSE
) {
2449 /* No need to notify the driver. Any changes will actually take effect
2450 * the next time the shader is linked.
2452 * The ARB_get_program_binary extension spec says:
2454 * "To indicate that a program binary is likely to be retrieved,
2455 * ProgramParameteri should be called with <pname>
2456 * PROGRAM_BINARY_RETRIEVABLE_HINT and <value> TRUE. This setting
2457 * will not be in effect until the next time LinkProgram or
2458 * ProgramBinary has been called successfully."
2460 * The resolution of issue 9 in the extension spec also says:
2462 * "The application may use the PROGRAM_BINARY_RETRIEVABLE_HINT hint
2463 * to indicate to the GL implementation that this program will
2464 * likely be saved with GetProgramBinary at some point. This will
2465 * give the GL implementation the opportunity to track any state
2466 * changes made to the program before being saved such that when it
2467 * is loaded again a recompile can be avoided."
2469 shProg
->BinaryRetrievableHintPending
= value
;
2472 case GL_PROGRAM_SEPARABLE
:
2473 /* Spec imply that the behavior is the same as ARB_get_program_binary
2474 * Chapter 7.3 Program Objects
2476 if (!no_error
&& value
!= GL_TRUE
&& value
!= GL_FALSE
) {
2479 shProg
->SeparateShader
= value
;
2484 _mesa_error(ctx
, GL_INVALID_ENUM
, "glProgramParameteri(pname=%s)",
2485 _mesa_enum_to_string(pname
));
2491 _mesa_error(ctx
, GL_INVALID_VALUE
,
2492 "glProgramParameteri(pname=%s, value=%d): "
2493 "value must be 0 or 1.",
2494 _mesa_enum_to_string(pname
),
2500 _mesa_ProgramParameteri_no_error(GLuint program
, GLenum pname
, GLint value
)
2502 GET_CURRENT_CONTEXT(ctx
);
2504 struct gl_shader_program
*shProg
= _mesa_lookup_shader_program(ctx
, program
);
2505 program_parameteri(ctx
, shProg
, pname
, value
, true);
2510 _mesa_ProgramParameteri(GLuint program
, GLenum pname
, GLint value
)
2512 struct gl_shader_program
*shProg
;
2513 GET_CURRENT_CONTEXT(ctx
);
2515 shProg
= _mesa_lookup_shader_program_err(ctx
, program
,
2516 "glProgramParameteri");
2520 program_parameteri(ctx
, shProg
, pname
, value
, false);
2525 _mesa_use_program(struct gl_context
*ctx
, gl_shader_stage stage
,
2526 struct gl_shader_program
*shProg
, struct gl_program
*prog
,
2527 struct gl_pipeline_object
*shTarget
)
2529 struct gl_program
**target
;
2531 target
= &shTarget
->CurrentProgram
[stage
];
2533 _mesa_program_init_subroutine_defaults(ctx
, prog
);
2536 if (*target
!= prog
) {
2537 /* Program is current, flush it */
2538 if (shTarget
== ctx
->_Shader
) {
2539 FLUSH_VERTICES(ctx
, _NEW_PROGRAM
| _NEW_PROGRAM_CONSTANTS
);
2542 _mesa_reference_shader_program(ctx
,
2543 &shTarget
->ReferencedPrograms
[stage
],
2545 _mesa_reference_program(ctx
, target
, prog
);
2546 if (stage
== MESA_SHADER_VERTEX
)
2547 _mesa_update_vertex_processing_mode(ctx
);
2555 * Copy program-specific data generated by linking from the gl_shader_program
2556 * object to the gl_program object referred to by the gl_linked_shader.
2558 * This function expects _mesa_reference_program() to have been previously
2559 * called setting the gl_linked_shaders program reference.
2562 _mesa_copy_linked_program_data(const struct gl_shader_program
*src
,
2563 struct gl_linked_shader
*dst_sh
)
2565 assert(dst_sh
->Program
);
2567 struct gl_program
*dst
= dst_sh
->Program
;
2569 dst
->info
.separate_shader
= src
->SeparateShader
;
2571 switch (dst_sh
->Stage
) {
2572 case MESA_SHADER_GEOMETRY
: {
2573 dst
->info
.gs
.vertices_in
= src
->Geom
.VerticesIn
;
2574 dst
->info
.gs
.uses_end_primitive
= src
->Geom
.UsesEndPrimitive
;
2575 dst
->info
.gs
.uses_streams
= src
->Geom
.UsesStreams
;
2578 case MESA_SHADER_FRAGMENT
: {
2579 dst
->info
.fs
.depth_layout
= src
->FragDepthLayout
;
2582 case MESA_SHADER_COMPUTE
: {
2583 dst
->info
.cs
.shared_size
= src
->Comp
.SharedSize
;
2592 * ARB_separate_shader_objects: Compile & Link Program
2595 _mesa_CreateShaderProgramv(GLenum type
, GLsizei count
,
2596 const GLchar
* const *strings
)
2598 GET_CURRENT_CONTEXT(ctx
);
2600 const GLuint shader
= create_shader_err(ctx
, type
, "glCreateShaderProgramv");
2604 * According to OpenGL 4.5 and OpenGL ES 3.1 standards, section 7.3:
2605 * GL_INVALID_VALUE should be generated if count < 0
2608 _mesa_error(ctx
, GL_INVALID_VALUE
, "glCreateShaderProgram (count < 0)");
2613 struct gl_shader
*sh
= _mesa_lookup_shader(ctx
, shader
);
2615 _mesa_ShaderSource(shader
, count
, strings
, NULL
);
2616 _mesa_compile_shader(ctx
, sh
);
2618 program
= create_shader_program(ctx
);
2620 struct gl_shader_program
*shProg
;
2621 GLint compiled
= GL_FALSE
;
2623 shProg
= _mesa_lookup_shader_program(ctx
, program
);
2625 shProg
->SeparateShader
= GL_TRUE
;
2627 get_shaderiv(ctx
, shader
, GL_COMPILE_STATUS
, &compiled
);
2629 attach_shader_err(ctx
, program
, shader
, "glCreateShaderProgramv");
2630 _mesa_link_program(ctx
, shProg
);
2631 detach_shader_error(ctx
, program
, shader
);
2635 if (active
-user
-defined
-varyings
-in
-linked
-program
) {
2636 append
-error
-to
-info
-log
;
2637 shProg
->data
->LinkStatus
= LINKING_FAILURE
;
2642 ralloc_strcat(&shProg
->data
->InfoLog
, sh
->InfoLog
);
2645 delete_shader(ctx
, shader
);
2653 * For GL_ARB_tessellation_shader
2656 _mesa_PatchParameteri_no_error(GLenum pname
, GLint value
)
2658 GET_CURRENT_CONTEXT(ctx
);
2659 ctx
->TessCtrlProgram
.patch_vertices
= value
;
2663 extern void GLAPIENTRY
2664 _mesa_PatchParameteri(GLenum pname
, GLint value
)
2666 GET_CURRENT_CONTEXT(ctx
);
2668 if (!_mesa_has_tessellation(ctx
)) {
2669 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glPatchParameteri");
2673 if (pname
!= GL_PATCH_VERTICES
) {
2674 _mesa_error(ctx
, GL_INVALID_ENUM
, "glPatchParameteri");
2678 if (value
<= 0 || value
> ctx
->Const
.MaxPatchVertices
) {
2679 _mesa_error(ctx
, GL_INVALID_VALUE
, "glPatchParameteri");
2683 ctx
->TessCtrlProgram
.patch_vertices
= value
;
2687 extern void GLAPIENTRY
2688 _mesa_PatchParameterfv(GLenum pname
, const GLfloat
*values
)
2690 GET_CURRENT_CONTEXT(ctx
);
2692 if (!_mesa_has_tessellation(ctx
)) {
2693 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glPatchParameterfv");
2698 case GL_PATCH_DEFAULT_OUTER_LEVEL
:
2699 FLUSH_VERTICES(ctx
, 0);
2700 memcpy(ctx
->TessCtrlProgram
.patch_default_outer_level
, values
,
2701 4 * sizeof(GLfloat
));
2702 ctx
->NewDriverState
|= ctx
->DriverFlags
.NewDefaultTessLevels
;
2704 case GL_PATCH_DEFAULT_INNER_LEVEL
:
2705 FLUSH_VERTICES(ctx
, 0);
2706 memcpy(ctx
->TessCtrlProgram
.patch_default_inner_level
, values
,
2707 2 * sizeof(GLfloat
));
2708 ctx
->NewDriverState
|= ctx
->DriverFlags
.NewDefaultTessLevels
;
2711 _mesa_error(ctx
, GL_INVALID_ENUM
, "glPatchParameterfv");
2717 * ARB_shader_subroutine
2720 _mesa_GetSubroutineUniformLocation(GLuint program
, GLenum shadertype
,
2723 GET_CURRENT_CONTEXT(ctx
);
2724 const char *api_name
= "glGetSubroutineUniformLocation";
2725 struct gl_shader_program
*shProg
;
2726 GLenum resource_type
;
2727 gl_shader_stage stage
;
2729 if (!_mesa_validate_shader_target(ctx
, shadertype
)) {
2730 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s", api_name
);
2734 shProg
= _mesa_lookup_shader_program_err(ctx
, program
, api_name
);
2738 stage
= _mesa_shader_enum_to_shader_stage(shadertype
);
2739 if (!shProg
->_LinkedShaders
[stage
]) {
2740 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s", api_name
);
2744 resource_type
= _mesa_shader_stage_to_subroutine_uniform(stage
);
2745 return _mesa_program_resource_location(shProg
, resource_type
, name
);
2749 _mesa_GetSubroutineIndex(GLuint program
, GLenum shadertype
,
2752 GET_CURRENT_CONTEXT(ctx
);
2753 const char *api_name
= "glGetSubroutineIndex";
2754 struct gl_shader_program
*shProg
;
2755 struct gl_program_resource
*res
;
2756 GLenum resource_type
;
2757 gl_shader_stage stage
;
2759 if (!_mesa_validate_shader_target(ctx
, shadertype
)) {
2760 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s", api_name
);
2764 shProg
= _mesa_lookup_shader_program_err(ctx
, program
, api_name
);
2768 stage
= _mesa_shader_enum_to_shader_stage(shadertype
);
2769 if (!shProg
->_LinkedShaders
[stage
]) {
2770 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s", api_name
);
2774 resource_type
= _mesa_shader_stage_to_subroutine(stage
);
2775 res
= _mesa_program_resource_find_name(shProg
, resource_type
, name
, NULL
);
2780 return _mesa_program_resource_index(shProg
, res
);
2785 _mesa_GetActiveSubroutineUniformiv(GLuint program
, GLenum shadertype
,
2786 GLuint index
, GLenum pname
, GLint
*values
)
2788 GET_CURRENT_CONTEXT(ctx
);
2789 const char *api_name
= "glGetActiveSubroutineUniformiv";
2790 struct gl_shader_program
*shProg
;
2791 struct gl_linked_shader
*sh
;
2792 gl_shader_stage stage
;
2793 struct gl_program_resource
*res
;
2794 const struct gl_uniform_storage
*uni
;
2795 GLenum resource_type
;
2798 if (!_mesa_validate_shader_target(ctx
, shadertype
)) {
2799 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s", api_name
);
2803 shProg
= _mesa_lookup_shader_program_err(ctx
, program
, api_name
);
2807 stage
= _mesa_shader_enum_to_shader_stage(shadertype
);
2808 resource_type
= _mesa_shader_stage_to_subroutine_uniform(stage
);
2810 sh
= shProg
->_LinkedShaders
[stage
];
2812 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s", api_name
);
2816 struct gl_program
*p
= shProg
->_LinkedShaders
[stage
]->Program
;
2817 if (index
>= p
->sh
.NumSubroutineUniforms
) {
2818 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s: invalid index greater than GL_ACTIVE_SUBROUTINE_UNIFORMS", api_name
);
2823 case GL_NUM_COMPATIBLE_SUBROUTINES
: {
2824 res
= _mesa_program_resource_find_index(shProg
, resource_type
, index
);
2827 values
[0] = uni
->num_compatible_subroutines
;
2831 case GL_COMPATIBLE_SUBROUTINES
: {
2832 res
= _mesa_program_resource_find_index(shProg
, resource_type
, index
);
2836 for (i
= 0; i
< p
->sh
.NumSubroutineFunctions
; i
++) {
2837 struct gl_subroutine_function
*fn
= &p
->sh
.SubroutineFunctions
[i
];
2838 for (j
= 0; j
< fn
->num_compat_types
; j
++) {
2839 if (fn
->types
[j
] == uni
->type
) {
2840 values
[count
++] = i
;
2848 case GL_UNIFORM_SIZE
:
2849 res
= _mesa_program_resource_find_index(shProg
, resource_type
, index
);
2852 values
[0] = uni
->array_elements
? uni
->array_elements
: 1;
2855 case GL_UNIFORM_NAME_LENGTH
:
2856 res
= _mesa_program_resource_find_index(shProg
, resource_type
, index
);
2858 values
[0] = strlen(_mesa_program_resource_name(res
)) + 1
2859 + ((_mesa_program_resource_array_size(res
) != 0) ? 3 : 0);
2863 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s", api_name
);
2870 _mesa_GetActiveSubroutineUniformName(GLuint program
, GLenum shadertype
,
2871 GLuint index
, GLsizei bufsize
,
2872 GLsizei
*length
, GLchar
*name
)
2874 GET_CURRENT_CONTEXT(ctx
);
2875 const char *api_name
= "glGetActiveSubroutineUniformName";
2876 struct gl_shader_program
*shProg
;
2877 GLenum resource_type
;
2878 gl_shader_stage stage
;
2880 if (!_mesa_validate_shader_target(ctx
, shadertype
)) {
2881 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s", api_name
);
2885 shProg
= _mesa_lookup_shader_program_err(ctx
, program
, api_name
);
2889 stage
= _mesa_shader_enum_to_shader_stage(shadertype
);
2890 if (!shProg
->_LinkedShaders
[stage
]) {
2891 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s", api_name
);
2895 resource_type
= _mesa_shader_stage_to_subroutine_uniform(stage
);
2896 /* get program resource name */
2897 _mesa_get_program_resource_name(shProg
, resource_type
,
2899 length
, name
, api_name
);
2904 _mesa_GetActiveSubroutineName(GLuint program
, GLenum shadertype
,
2905 GLuint index
, GLsizei bufsize
,
2906 GLsizei
*length
, GLchar
*name
)
2908 GET_CURRENT_CONTEXT(ctx
);
2909 const char *api_name
= "glGetActiveSubroutineName";
2910 struct gl_shader_program
*shProg
;
2911 GLenum resource_type
;
2912 gl_shader_stage stage
;
2914 if (!_mesa_validate_shader_target(ctx
, shadertype
)) {
2915 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s", api_name
);
2919 shProg
= _mesa_lookup_shader_program_err(ctx
, program
, api_name
);
2923 stage
= _mesa_shader_enum_to_shader_stage(shadertype
);
2924 if (!shProg
->_LinkedShaders
[stage
]) {
2925 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s", api_name
);
2928 resource_type
= _mesa_shader_stage_to_subroutine(stage
);
2929 _mesa_get_program_resource_name(shProg
, resource_type
,
2931 length
, name
, api_name
);
2935 _mesa_UniformSubroutinesuiv(GLenum shadertype
, GLsizei count
,
2936 const GLuint
*indices
)
2938 GET_CURRENT_CONTEXT(ctx
);
2939 const char *api_name
= "glUniformSubroutinesuiv";
2940 gl_shader_stage stage
;
2943 if (!_mesa_validate_shader_target(ctx
, shadertype
)) {
2944 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s", api_name
);
2948 stage
= _mesa_shader_enum_to_shader_stage(shadertype
);
2949 struct gl_program
*p
= ctx
->_Shader
->CurrentProgram
[stage
];
2951 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s", api_name
);
2955 if (count
!= p
->sh
.NumSubroutineUniformRemapTable
) {
2956 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s", api_name
);
2961 bool flushed
= false;
2963 struct gl_uniform_storage
*uni
= p
->sh
.SubroutineUniformRemapTable
[i
];
2970 _mesa_flush_vertices_for_uniforms(ctx
, uni
);
2974 int uni_count
= uni
->array_elements
? uni
->array_elements
: 1;
2977 for (j
= i
; j
< i
+ uni_count
; j
++) {
2978 struct gl_subroutine_function
*subfn
= NULL
;
2979 if (indices
[j
] > p
->sh
.MaxSubroutineFunctionIndex
) {
2980 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s", api_name
);
2984 for (f
= 0; f
< p
->sh
.NumSubroutineFunctions
; f
++) {
2985 if (p
->sh
.SubroutineFunctions
[f
].index
== indices
[j
])
2986 subfn
= &p
->sh
.SubroutineFunctions
[f
];
2993 for (k
= 0; k
< subfn
->num_compat_types
; k
++) {
2994 if (subfn
->types
[k
] == uni
->type
)
2997 if (k
== subfn
->num_compat_types
) {
2998 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s", api_name
);
3002 ctx
->SubroutineIndex
[p
->info
.stage
].IndexPtr
[j
] = indices
[j
];
3010 _mesa_GetUniformSubroutineuiv(GLenum shadertype
, GLint location
,
3013 GET_CURRENT_CONTEXT(ctx
);
3014 const char *api_name
= "glGetUniformSubroutineuiv";
3015 gl_shader_stage stage
;
3017 if (!_mesa_validate_shader_target(ctx
, shadertype
)) {
3018 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s", api_name
);
3022 stage
= _mesa_shader_enum_to_shader_stage(shadertype
);
3023 struct gl_program
*p
= ctx
->_Shader
->CurrentProgram
[stage
];
3025 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s", api_name
);
3029 if (location
>= p
->sh
.NumSubroutineUniformRemapTable
) {
3030 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s", api_name
);
3034 *params
= ctx
->SubroutineIndex
[p
->info
.stage
].IndexPtr
[location
];
3039 _mesa_GetProgramStageiv(GLuint program
, GLenum shadertype
,
3040 GLenum pname
, GLint
*values
)
3042 GET_CURRENT_CONTEXT(ctx
);
3043 const char *api_name
= "glGetProgramStageiv";
3044 struct gl_shader_program
*shProg
;
3045 struct gl_linked_shader
*sh
;
3046 gl_shader_stage stage
;
3048 if (!_mesa_validate_shader_target(ctx
, shadertype
)) {
3049 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s", api_name
);
3053 shProg
= _mesa_lookup_shader_program_err(ctx
, program
, api_name
);
3057 stage
= _mesa_shader_enum_to_shader_stage(shadertype
);
3058 sh
= shProg
->_LinkedShaders
[stage
];
3060 /* ARB_shader_subroutine doesn't ask the program to be linked, or list any
3061 * INVALID_OPERATION in the case of not be linked.
3063 * And for some pnames, like GL_ACTIVE_SUBROUTINE_UNIFORMS, you can ask the
3064 * same info using other specs (ARB_program_interface_query), without the
3065 * need of the program to be linked, being the value for that case 0.
3067 * But at the same time, some other methods require the program to be
3068 * linked for pname related to locations, so it would be inconsistent to
3069 * not do the same here. So we are:
3070 * * Return GL_INVALID_OPERATION if not linked only for locations.
3071 * * Setting a default value of 0, to be returned if not linked.
3075 if (pname
== GL_ACTIVE_SUBROUTINE_UNIFORM_LOCATIONS
) {
3076 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s", api_name
);
3081 struct gl_program
*p
= sh
->Program
;
3083 case GL_ACTIVE_SUBROUTINES
:
3084 values
[0] = p
->sh
.NumSubroutineFunctions
;
3086 case GL_ACTIVE_SUBROUTINE_UNIFORM_LOCATIONS
:
3087 values
[0] = p
->sh
.NumSubroutineUniformRemapTable
;
3089 case GL_ACTIVE_SUBROUTINE_UNIFORMS
:
3090 values
[0] = p
->sh
.NumSubroutineUniforms
;
3092 case GL_ACTIVE_SUBROUTINE_MAX_LENGTH
:
3096 GLenum resource_type
;
3097 struct gl_program_resource
*res
;
3099 resource_type
= _mesa_shader_stage_to_subroutine(stage
);
3100 for (i
= 0; i
< p
->sh
.NumSubroutineFunctions
; i
++) {
3101 res
= _mesa_program_resource_find_index(shProg
, resource_type
, i
);
3103 const GLint len
= strlen(_mesa_program_resource_name(res
)) + 1;
3108 values
[0] = max_len
;
3111 case GL_ACTIVE_SUBROUTINE_UNIFORM_MAX_LENGTH
:
3115 GLenum resource_type
;
3116 struct gl_program_resource
*res
;
3118 resource_type
= _mesa_shader_stage_to_subroutine_uniform(stage
);
3119 for (i
= 0; i
< p
->sh
.NumSubroutineUniformRemapTable
; i
++) {
3120 res
= _mesa_program_resource_find_index(shProg
, resource_type
, i
);
3122 const GLint len
= strlen(_mesa_program_resource_name(res
)) + 1
3123 + ((_mesa_program_resource_array_size(res
) != 0) ? 3 : 0);
3129 values
[0] = max_len
;
3133 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s", api_name
);
3140 find_compat_subroutine(struct gl_program
*p
, const struct glsl_type
*type
)
3144 for (i
= 0; i
< p
->sh
.NumSubroutineFunctions
; i
++) {
3145 struct gl_subroutine_function
*fn
= &p
->sh
.SubroutineFunctions
[i
];
3146 for (j
= 0; j
< fn
->num_compat_types
; j
++) {
3147 if (fn
->types
[j
] == type
)
3155 _mesa_shader_write_subroutine_index(struct gl_context
*ctx
,
3156 struct gl_program
*p
)
3160 if (p
->sh
.NumSubroutineUniformRemapTable
== 0)
3165 struct gl_uniform_storage
*uni
= p
->sh
.SubroutineUniformRemapTable
[i
];
3174 uni_count
= uni
->array_elements
? uni
->array_elements
: 1;
3175 for (j
= 0; j
< uni_count
; j
++) {
3176 val
= ctx
->SubroutineIndex
[p
->info
.stage
].IndexPtr
[i
+ j
];
3177 memcpy(&uni
->storage
[j
], &val
, sizeof(int));
3180 _mesa_propagate_uniforms_to_driver_storage(uni
, 0, uni_count
);
3182 } while(i
< p
->sh
.NumSubroutineUniformRemapTable
);
3186 _mesa_shader_write_subroutine_indices(struct gl_context
*ctx
,
3187 gl_shader_stage stage
)
3189 if (ctx
->_Shader
->CurrentProgram
[stage
])
3190 _mesa_shader_write_subroutine_index(ctx
,
3191 ctx
->_Shader
->CurrentProgram
[stage
]);
3195 _mesa_program_init_subroutine_defaults(struct gl_context
*ctx
,
3196 struct gl_program
*p
)
3200 struct gl_subroutine_index_binding
*binding
= &ctx
->SubroutineIndex
[p
->info
.stage
];
3201 if (binding
->NumIndex
!= p
->sh
.NumSubroutineUniformRemapTable
) {
3202 binding
->IndexPtr
= realloc(binding
->IndexPtr
,
3203 p
->sh
.NumSubroutineUniformRemapTable
* (sizeof(GLuint
)));
3204 binding
->NumIndex
= p
->sh
.NumSubroutineUniformRemapTable
;
3207 for (int i
= 0; i
< p
->sh
.NumSubroutineUniformRemapTable
; i
++) {
3208 struct gl_uniform_storage
*uni
= p
->sh
.SubroutineUniformRemapTable
[i
];
3213 binding
->IndexPtr
[i
] = find_compat_subroutine(p
, uni
->type
);