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
35 * 1. Check that the right error code is generated for all _mesa_error() calls.
36 * 2. Insert FLUSH_VERTICES calls in various places
41 #include <c99_alloca.h>
42 #include "main/glheader.h"
43 #include "main/context.h"
44 #include "main/enums.h"
45 #include "main/glspirv.h"
46 #include "main/hash.h"
47 #include "main/mtypes.h"
48 #include "main/pipelineobj.h"
49 #include "main/program_binary.h"
50 #include "main/shaderapi.h"
51 #include "main/shaderobj.h"
52 #include "main/state.h"
53 #include "main/transformfeedback.h"
54 #include "main/uniforms.h"
55 #include "compiler/glsl/glsl_parser_extras.h"
56 #include "compiler/glsl/ir.h"
57 #include "compiler/glsl/ir_uniform.h"
58 #include "compiler/glsl/program.h"
59 #include "program/program.h"
60 #include "program/prog_print.h"
61 #include "program/prog_parameter.h"
62 #include "util/ralloc.h"
63 #include "util/hash_table.h"
64 #include "util/mesa-sha1.h"
65 #include "util/crc32.h"
68 * Return mask of GLSL_x flags by examining the MESA_GLSL env var.
71 _mesa_get_shader_flags(void)
73 GLbitfield flags
= 0x0;
74 const char *env
= getenv("MESA_GLSL");
77 if (strstr(env
, "dump_on_error"))
78 flags
|= GLSL_DUMP_ON_ERROR
;
79 else if (strstr(env
, "dump"))
81 if (strstr(env
, "log"))
83 if (strstr(env
, "cache_fb"))
84 flags
|= GLSL_CACHE_FALLBACK
;
85 if (strstr(env
, "cache_info"))
86 flags
|= GLSL_CACHE_INFO
;
87 if (strstr(env
, "nopvert"))
88 flags
|= GLSL_NOP_VERT
;
89 if (strstr(env
, "nopfrag"))
90 flags
|= GLSL_NOP_FRAG
;
91 if (strstr(env
, "uniform"))
92 flags
|= GLSL_UNIFORMS
;
93 if (strstr(env
, "useprog"))
94 flags
|= GLSL_USE_PROG
;
95 if (strstr(env
, "errors"))
96 flags
|= GLSL_REPORT_ERRORS
;
103 * Memoized version of getenv("MESA_SHADER_CAPTURE_PATH").
106 _mesa_get_shader_capture_path(void)
108 static bool read_env_var
= false;
109 static const char *path
= NULL
;
112 path
= getenv("MESA_SHADER_CAPTURE_PATH");
120 * Initialize context's shader state.
123 _mesa_init_shader_state(struct gl_context
*ctx
)
125 /* Device drivers may override these to control what kind of instructions
126 * are generated by the GLSL compiler.
128 struct gl_shader_compiler_options options
;
132 memset(&options
, 0, sizeof(options
));
133 options
.MaxUnrollIterations
= 32;
134 options
.MaxIfDepth
= UINT_MAX
;
136 for (sh
= 0; sh
< MESA_SHADER_STAGES
; ++sh
)
137 memcpy(&ctx
->Const
.ShaderCompilerOptions
[sh
], &options
, sizeof(options
));
139 ctx
->Shader
.Flags
= _mesa_get_shader_flags();
141 if (ctx
->Shader
.Flags
!= 0)
142 ctx
->Const
.GenerateTemporaryNames
= true;
144 /* Extended for ARB_separate_shader_objects */
145 ctx
->Shader
.RefCount
= 1;
146 ctx
->TessCtrlProgram
.patch_vertices
= 3;
147 for (i
= 0; i
< 4; ++i
)
148 ctx
->TessCtrlProgram
.patch_default_outer_level
[i
] = 1.0;
149 for (i
= 0; i
< 2; ++i
)
150 ctx
->TessCtrlProgram
.patch_default_inner_level
[i
] = 1.0;
155 * Free the per-context shader-related state.
158 _mesa_free_shader_state(struct gl_context
*ctx
)
160 for (int i
= 0; i
< MESA_SHADER_STAGES
; i
++) {
161 _mesa_reference_program(ctx
, &ctx
->Shader
.CurrentProgram
[i
], NULL
);
162 _mesa_reference_shader_program(ctx
,
163 &ctx
->Shader
.ReferencedPrograms
[i
],
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)");
652 * glGetProgramiv() - get shader program state.
653 * Note that this is for GLSL shader programs, not ARB vertex/fragment
654 * programs (see glGetProgramivARB).
657 get_programiv(struct gl_context
*ctx
, GLuint program
, GLenum pname
,
660 struct gl_shader_program
*shProg
661 = _mesa_lookup_shader_program_err(ctx
, program
, "glGetProgramiv(program)");
663 /* Is transform feedback available in this context?
666 (ctx
->API
== API_OPENGL_COMPAT
&& ctx
->Extensions
.EXT_transform_feedback
)
667 || ctx
->API
== API_OPENGL_CORE
668 || _mesa_is_gles3(ctx
);
670 /* True if geometry shaders (of the form that was adopted into GLSL 1.50
671 * and GL 3.2) are available in this context
673 const bool has_gs
= _mesa_has_geometry_shaders(ctx
);
674 const bool has_tess
= _mesa_has_tessellation(ctx
);
676 /* Are uniform buffer objects available in this context?
679 (ctx
->API
== API_OPENGL_COMPAT
&&
680 ctx
->Extensions
.ARB_uniform_buffer_object
)
681 || ctx
->API
== API_OPENGL_CORE
682 || _mesa_is_gles3(ctx
);
689 case GL_DELETE_STATUS
:
690 *params
= shProg
->DeletePending
;
693 *params
= shProg
->data
->LinkStatus
? GL_TRUE
: GL_FALSE
;
695 case GL_VALIDATE_STATUS
:
696 *params
= shProg
->data
->Validated
;
698 case GL_INFO_LOG_LENGTH
:
699 *params
= (shProg
->data
->InfoLog
&& shProg
->data
->InfoLog
[0] != '\0') ?
700 strlen(shProg
->data
->InfoLog
) + 1 : 0;
702 case GL_ATTACHED_SHADERS
:
703 *params
= shProg
->NumShaders
;
705 case GL_ACTIVE_ATTRIBUTES
:
706 *params
= _mesa_count_active_attribs(shProg
);
708 case GL_ACTIVE_ATTRIBUTE_MAX_LENGTH
:
709 *params
= _mesa_longest_attribute_name_length(shProg
);
711 case GL_ACTIVE_UNIFORMS
: {
713 const unsigned num_uniforms
=
714 shProg
->data
->NumUniformStorage
- shProg
->data
->NumHiddenUniforms
;
715 for (*params
= 0, i
= 0; i
< num_uniforms
; i
++) {
716 if (!shProg
->data
->UniformStorage
[i
].is_shader_storage
)
721 case GL_ACTIVE_UNIFORM_MAX_LENGTH
: {
724 const unsigned num_uniforms
=
725 shProg
->data
->NumUniformStorage
- shProg
->data
->NumHiddenUniforms
;
727 for (i
= 0; i
< num_uniforms
; i
++) {
728 if (shProg
->data
->UniformStorage
[i
].is_shader_storage
)
731 /* Add one for the terminating NUL character for a non-array, and
732 * 4 for the "[0]" and the NUL for an array.
734 const GLint len
= strlen(shProg
->data
->UniformStorage
[i
].name
) + 1 +
735 ((shProg
->data
->UniformStorage
[i
].array_elements
!= 0) ? 3 : 0);
744 case GL_TRANSFORM_FEEDBACK_VARYINGS
:
747 *params
= shProg
->TransformFeedback
.NumVarying
;
749 case GL_TRANSFORM_FEEDBACK_VARYING_MAX_LENGTH
: {
755 for (i
= 0; i
< shProg
->TransformFeedback
.NumVarying
; i
++) {
756 /* Add one for the terminating NUL character.
759 strlen(shProg
->TransformFeedback
.VaryingNames
[i
]) + 1;
768 case GL_TRANSFORM_FEEDBACK_BUFFER_MODE
:
771 *params
= shProg
->TransformFeedback
.BufferMode
;
773 case GL_GEOMETRY_VERTICES_OUT
:
776 if (check_gs_query(ctx
, shProg
)) {
777 *params
= shProg
->_LinkedShaders
[MESA_SHADER_GEOMETRY
]->
778 Program
->info
.gs
.vertices_out
;
781 case GL_GEOMETRY_SHADER_INVOCATIONS
:
782 if (!has_gs
|| !ctx
->Extensions
.ARB_gpu_shader5
)
784 if (check_gs_query(ctx
, shProg
)) {
785 *params
= shProg
->_LinkedShaders
[MESA_SHADER_GEOMETRY
]->
786 Program
->info
.gs
.invocations
;
789 case GL_GEOMETRY_INPUT_TYPE
:
792 if (check_gs_query(ctx
, shProg
)) {
793 *params
= shProg
->_LinkedShaders
[MESA_SHADER_GEOMETRY
]->
794 Program
->info
.gs
.input_primitive
;
797 case GL_GEOMETRY_OUTPUT_TYPE
:
800 if (check_gs_query(ctx
, shProg
)) {
801 *params
= shProg
->_LinkedShaders
[MESA_SHADER_GEOMETRY
]->
802 Program
->info
.gs
.output_primitive
;
805 case GL_ACTIVE_UNIFORM_BLOCK_MAX_NAME_LENGTH
: {
812 for (i
= 0; i
< shProg
->data
->NumUniformBlocks
; i
++) {
813 /* Add one for the terminating NUL character.
815 const GLint len
= strlen(shProg
->data
->UniformBlocks
[i
].Name
) + 1;
824 case GL_ACTIVE_UNIFORM_BLOCKS
:
828 *params
= shProg
->data
->NumUniformBlocks
;
830 case GL_PROGRAM_BINARY_RETRIEVABLE_HINT
:
831 /* This enum isn't part of the OES extension for OpenGL ES 2.0. It is
832 * only available with desktop OpenGL 3.0+ with the
833 * GL_ARB_get_program_binary extension or OpenGL ES 3.0.
835 * On desktop, we ignore the 3.0+ requirement because it is silly.
837 if (!_mesa_is_desktop_gl(ctx
) && !_mesa_is_gles3(ctx
))
840 *params
= shProg
->BinaryRetreivableHint
;
842 case GL_PROGRAM_BINARY_LENGTH
:
843 if (ctx
->Const
.NumProgramBinaryFormats
== 0 || !shProg
->data
->LinkStatus
) {
846 _mesa_get_program_binary_length(ctx
, shProg
, params
);
849 case GL_ACTIVE_ATOMIC_COUNTER_BUFFERS
:
850 if (!ctx
->Extensions
.ARB_shader_atomic_counters
)
853 *params
= shProg
->data
->NumAtomicBuffers
;
855 case GL_COMPUTE_WORK_GROUP_SIZE
: {
857 if (!_mesa_has_compute_shaders(ctx
))
859 if (!shProg
->data
->LinkStatus
) {
860 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glGetProgramiv(program not "
864 if (shProg
->_LinkedShaders
[MESA_SHADER_COMPUTE
] == NULL
) {
865 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glGetProgramiv(no compute "
869 for (i
= 0; i
< 3; i
++)
870 params
[i
] = shProg
->_LinkedShaders
[MESA_SHADER_COMPUTE
]->
871 Program
->info
.cs
.local_size
[i
];
874 case GL_PROGRAM_SEPARABLE
:
875 /* If the program has not been linked, return initial value 0. */
876 *params
= (shProg
->data
->LinkStatus
== LINKING_FAILURE
) ? 0 : shProg
->SeparateShader
;
879 /* ARB_tessellation_shader */
880 case GL_TESS_CONTROL_OUTPUT_VERTICES
:
883 if (check_tcs_query(ctx
, shProg
)) {
884 *params
= shProg
->_LinkedShaders
[MESA_SHADER_TESS_CTRL
]->
885 Program
->info
.tess
.tcs_vertices_out
;
888 case GL_TESS_GEN_MODE
:
891 if (check_tes_query(ctx
, shProg
)) {
892 *params
= shProg
->_LinkedShaders
[MESA_SHADER_TESS_EVAL
]->
893 Program
->info
.tess
.primitive_mode
;
896 case GL_TESS_GEN_SPACING
:
899 if (check_tes_query(ctx
, shProg
)) {
900 const struct gl_linked_shader
*tes
=
901 shProg
->_LinkedShaders
[MESA_SHADER_TESS_EVAL
];
902 switch (tes
->Program
->info
.tess
.spacing
) {
903 case TESS_SPACING_EQUAL
:
906 case TESS_SPACING_FRACTIONAL_ODD
:
907 *params
= GL_FRACTIONAL_ODD
;
909 case TESS_SPACING_FRACTIONAL_EVEN
:
910 *params
= GL_FRACTIONAL_EVEN
;
912 case TESS_SPACING_UNSPECIFIED
:
918 case GL_TESS_GEN_VERTEX_ORDER
:
921 if (check_tes_query(ctx
, shProg
)) {
922 *params
= shProg
->_LinkedShaders
[MESA_SHADER_TESS_EVAL
]->
923 Program
->info
.tess
.ccw
? GL_CCW
: GL_CW
;
926 case GL_TESS_GEN_POINT_MODE
:
929 if (check_tes_query(ctx
, shProg
)) {
930 *params
= shProg
->_LinkedShaders
[MESA_SHADER_TESS_EVAL
]->
931 Program
->info
.tess
.point_mode
? GL_TRUE
: GL_FALSE
;
938 _mesa_error(ctx
, GL_INVALID_ENUM
, "glGetProgramiv(pname=%s)",
939 _mesa_enum_to_string(pname
));
944 * glGetShaderiv() - get GLSL shader state
947 get_shaderiv(struct gl_context
*ctx
, GLuint name
, GLenum pname
, GLint
*params
)
949 struct gl_shader
*shader
=
950 _mesa_lookup_shader_err(ctx
, name
, "glGetShaderiv");
958 *params
= shader
->Type
;
960 case GL_DELETE_STATUS
:
961 *params
= shader
->DeletePending
;
963 case GL_COMPILE_STATUS
:
964 *params
= shader
->CompileStatus
? GL_TRUE
: GL_FALSE
;
966 case GL_INFO_LOG_LENGTH
:
967 *params
= (shader
->InfoLog
&& shader
->InfoLog
[0] != '\0') ?
968 strlen(shader
->InfoLog
) + 1 : 0;
970 case GL_SHADER_SOURCE_LENGTH
:
971 *params
= shader
->Source
? strlen((char *) shader
->Source
) + 1 : 0;
973 case GL_SPIR_V_BINARY_ARB
:
974 *params
= (shader
->spirv_data
!= NULL
);
977 _mesa_error(ctx
, GL_INVALID_ENUM
, "glGetShaderiv(pname)");
984 get_program_info_log(struct gl_context
*ctx
, GLuint program
, GLsizei bufSize
,
985 GLsizei
*length
, GLchar
*infoLog
)
987 struct gl_shader_program
*shProg
;
989 /* Section 2.5 GL Errors (page 18) of the OpenGL ES 3.0.4 spec and
990 * section 2.3.1 (Errors) of the OpenGL 4.5 spec say:
992 * "If a negative number is provided where an argument of type sizei or
993 * sizeiptr is specified, an INVALID_VALUE error is generated."
996 _mesa_error(ctx
, GL_INVALID_VALUE
, "glGetProgramInfoLog(bufSize < 0)");
1000 shProg
= _mesa_lookup_shader_program_err(ctx
, program
,
1001 "glGetProgramInfoLog(program)");
1006 _mesa_copy_string(infoLog
, bufSize
, length
, shProg
->data
->InfoLog
);
1011 get_shader_info_log(struct gl_context
*ctx
, GLuint shader
, GLsizei bufSize
,
1012 GLsizei
*length
, GLchar
*infoLog
)
1014 struct gl_shader
*sh
;
1016 /* Section 2.5 GL Errors (page 18) of the OpenGL ES 3.0.4 spec and
1017 * section 2.3.1 (Errors) of the OpenGL 4.5 spec say:
1019 * "If a negative number is provided where an argument of type sizei or
1020 * sizeiptr is specified, an INVALID_VALUE error is generated."
1023 _mesa_error(ctx
, GL_INVALID_VALUE
, "glGetShaderInfoLog(bufSize < 0)");
1027 sh
= _mesa_lookup_shader_err(ctx
, shader
, "glGetShaderInfoLog(shader)");
1032 _mesa_copy_string(infoLog
, bufSize
, length
, sh
->InfoLog
);
1037 * Return shader source code.
1040 get_shader_source(struct gl_context
*ctx
, GLuint shader
, GLsizei maxLength
,
1041 GLsizei
*length
, GLchar
*sourceOut
)
1043 struct gl_shader
*sh
;
1045 if (maxLength
< 0) {
1046 _mesa_error(ctx
, GL_INVALID_VALUE
, "glGetShaderSource(bufSize < 0)");
1050 sh
= _mesa_lookup_shader_err(ctx
, shader
, "glGetShaderSource");
1054 _mesa_copy_string(sourceOut
, maxLength
, length
, sh
->Source
);
1059 * Set/replace shader source code. A helper function used by
1060 * glShaderSource[ARB].
1063 set_shader_source(struct gl_shader
*sh
, const GLchar
*source
)
1067 /* The GL_ARB_gl_spirv spec adds the following to the end of the description
1070 * "If <shader> was previously associated with a SPIR-V module (via the
1071 * ShaderBinary command), that association is broken. Upon successful
1072 * completion of this command the SPIR_V_BINARY_ARB state of <shader>
1075 _mesa_shader_spirv_data_reference(&sh
->spirv_data
, NULL
);
1077 if (sh
->CompileStatus
== COMPILE_SKIPPED
&& !sh
->FallbackSource
) {
1078 /* If shader was previously compiled back-up the source in case of cache
1081 sh
->FallbackSource
= sh
->Source
;
1082 sh
->Source
= source
;
1084 /* free old shader source string and install new one */
1085 free((void *)sh
->Source
);
1086 sh
->Source
= source
;
1090 sh
->SourceChecksum
= util_hash_crc32(sh
->Source
, strlen(sh
->Source
));
1099 _mesa_compile_shader(struct gl_context
*ctx
, struct gl_shader
*sh
)
1104 /* The GL_ARB_gl_spirv spec says:
1106 * "Add a new error for the CompileShader command:
1108 * An INVALID_OPERATION error is generated if the SPIR_V_BINARY_ARB
1109 * state of <shader> is TRUE."
1111 if (sh
->spirv_data
) {
1112 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glCompileShader(SPIR-V)");
1117 /* If the user called glCompileShader without first calling
1118 * glShaderSource, we should fail to compile, but not raise a GL_ERROR.
1120 sh
->CompileStatus
= COMPILE_FAILURE
;
1122 if (ctx
->_Shader
->Flags
& GLSL_DUMP
) {
1123 _mesa_log("GLSL source for %s shader %d:\n",
1124 _mesa_shader_stage_to_string(sh
->Stage
), sh
->Name
);
1125 _mesa_log("%s\n", sh
->Source
);
1128 /* this call will set the shader->CompileStatus field to indicate if
1129 * compilation was successful.
1131 _mesa_glsl_compile_shader(ctx
, sh
, false, false, false);
1133 if (ctx
->_Shader
->Flags
& GLSL_LOG
) {
1134 _mesa_write_shader_to_file(sh
);
1137 if (ctx
->_Shader
->Flags
& GLSL_DUMP
) {
1138 if (sh
->CompileStatus
) {
1140 _mesa_log("GLSL IR for shader %d:\n", sh
->Name
);
1141 _mesa_print_ir(_mesa_get_log_file(), sh
->ir
, NULL
);
1143 _mesa_log("No GLSL IR for shader %d (shader may be from "
1144 "cache)\n", sh
->Name
);
1148 _mesa_log("GLSL shader %d failed to compile.\n", sh
->Name
);
1150 if (sh
->InfoLog
&& sh
->InfoLog
[0] != 0) {
1151 _mesa_log("GLSL shader %d info log:\n", sh
->Name
);
1152 _mesa_log("%s\n", sh
->InfoLog
);
1157 if (!sh
->CompileStatus
) {
1158 if (ctx
->_Shader
->Flags
& GLSL_DUMP_ON_ERROR
) {
1159 _mesa_log("GLSL source for %s shader %d:\n",
1160 _mesa_shader_stage_to_string(sh
->Stage
), sh
->Name
);
1161 _mesa_log("%s\n", sh
->Source
);
1162 _mesa_log("Info Log:\n%s\n", sh
->InfoLog
);
1165 if (ctx
->_Shader
->Flags
& GLSL_REPORT_ERRORS
) {
1166 _mesa_debug(ctx
, "Error compiling shader %u:\n%s\n",
1167 sh
->Name
, sh
->InfoLog
);
1174 * Link a program's shaders.
1176 static ALWAYS_INLINE
void
1177 link_program(struct gl_context
*ctx
, struct gl_shader_program
*shProg
,
1184 /* From the ARB_transform_feedback2 specification:
1185 * "The error INVALID_OPERATION is generated by LinkProgram if <program>
1186 * is the name of a program being used by one or more transform feedback
1187 * objects, even if the objects are not currently bound or are paused."
1189 if (_mesa_transform_feedback_is_using_program(ctx
, shProg
)) {
1190 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1191 "glLinkProgram(transform feedback is using the program)");
1196 unsigned programs_in_use
= 0;
1198 for (unsigned stage
= 0; stage
< MESA_SHADER_STAGES
; stage
++) {
1199 if (ctx
->_Shader
->CurrentProgram
[stage
] &&
1200 ctx
->_Shader
->CurrentProgram
[stage
]->Id
== shProg
->Name
) {
1201 programs_in_use
|= 1 << stage
;
1205 FLUSH_VERTICES(ctx
, 0);
1206 _mesa_glsl_link_shader(ctx
, shProg
);
1208 /* From section 7.3 (Program Objects) of the OpenGL 4.5 spec:
1210 * "If LinkProgram or ProgramBinary successfully re-links a program
1211 * object that is active for any shader stage, then the newly generated
1212 * executable code will be installed as part of the current rendering
1213 * state for all shader stages where the program is active.
1214 * Additionally, the newly generated executable code is made part of
1215 * the state of any program pipeline for all stages where the program
1218 if (shProg
->data
->LinkStatus
&& programs_in_use
) {
1219 while (programs_in_use
) {
1220 const int stage
= u_bit_scan(&programs_in_use
);
1222 struct gl_program
*prog
= NULL
;
1223 if (shProg
->_LinkedShaders
[stage
])
1224 prog
= shProg
->_LinkedShaders
[stage
]->Program
;
1226 _mesa_use_program(ctx
, stage
, shProg
, prog
, ctx
->_Shader
);
1230 /* Capture .shader_test files. */
1231 const char *capture_path
= _mesa_get_shader_capture_path();
1232 if (shProg
->Name
!= 0 && shProg
->Name
!= ~0 && capture_path
!= NULL
) {
1234 char *filename
= ralloc_asprintf(NULL
, "%s/%u.shader_test",
1235 capture_path
, shProg
->Name
);
1236 file
= fopen(filename
, "w");
1238 fprintf(file
, "[require]\nGLSL%s >= %u.%02u\n",
1239 shProg
->IsES
? " ES" : "",
1240 shProg
->data
->Version
/ 100, shProg
->data
->Version
% 100);
1241 if (shProg
->SeparateShader
)
1242 fprintf(file
, "GL_ARB_separate_shader_objects\nSSO ENABLED\n");
1243 fprintf(file
, "\n");
1245 for (unsigned i
= 0; i
< shProg
->NumShaders
; i
++) {
1246 fprintf(file
, "[%s shader]\n%s\n",
1247 _mesa_shader_stage_to_string(shProg
->Shaders
[i
]->Stage
),
1248 shProg
->Shaders
[i
]->Source
);
1252 _mesa_warning(ctx
, "Failed to open %s", filename
);
1255 ralloc_free(filename
);
1258 if (shProg
->data
->LinkStatus
== LINKING_FAILURE
&&
1259 (ctx
->_Shader
->Flags
& GLSL_REPORT_ERRORS
)) {
1260 _mesa_debug(ctx
, "Error linking program %u:\n%s\n",
1261 shProg
->Name
, shProg
->data
->InfoLog
);
1264 _mesa_update_vertex_processing_mode(ctx
);
1270 printf("Link %u shaders in program %u: %s\n",
1271 shProg
->NumShaders
, shProg
->Name
,
1272 shProg
->data
->LinkStatus
? "Success" : "Failed");
1274 for (i
= 0; i
< shProg
->NumShaders
; i
++) {
1275 printf(" shader %u, stage %u\n",
1276 shProg
->Shaders
[i
]->Name
,
1277 shProg
->Shaders
[i
]->Stage
);
1284 link_program_error(struct gl_context
*ctx
, struct gl_shader_program
*shProg
)
1286 link_program(ctx
, shProg
, false);
1291 link_program_no_error(struct gl_context
*ctx
, struct gl_shader_program
*shProg
)
1293 link_program(ctx
, shProg
, true);
1298 _mesa_link_program(struct gl_context
*ctx
, struct gl_shader_program
*shProg
)
1300 link_program_error(ctx
, shProg
);
1305 * Print basic shader info (for debug).
1308 print_shader_info(const struct gl_shader_program
*shProg
)
1312 printf("Mesa: glUseProgram(%u)\n", shProg
->Name
);
1313 for (i
= 0; i
< shProg
->NumShaders
; i
++) {
1315 printf(" %s shader %u, checksum %u\n",
1316 _mesa_shader_stage_to_string(shProg
->Shaders
[i
]->Stage
),
1317 shProg
->Shaders
[i
]->Name
,
1318 shProg
->Shaders
[i
]->SourceChecksum
);
1320 printf(" %s shader %u\n",
1321 _mesa_shader_stage_to_string(shProg
->Shaders
[i
]->Stage
),
1322 shProg
->Shaders
[i
]->Name
);
1325 if (shProg
->_LinkedShaders
[MESA_SHADER_VERTEX
])
1326 printf(" vert prog %u\n",
1327 shProg
->_LinkedShaders
[MESA_SHADER_VERTEX
]->Program
->Id
);
1328 if (shProg
->_LinkedShaders
[MESA_SHADER_FRAGMENT
])
1329 printf(" frag prog %u\n",
1330 shProg
->_LinkedShaders
[MESA_SHADER_FRAGMENT
]->Program
->Id
);
1331 if (shProg
->_LinkedShaders
[MESA_SHADER_GEOMETRY
])
1332 printf(" geom prog %u\n",
1333 shProg
->_LinkedShaders
[MESA_SHADER_GEOMETRY
]->Program
->Id
);
1334 if (shProg
->_LinkedShaders
[MESA_SHADER_TESS_CTRL
])
1335 printf(" tesc prog %u\n",
1336 shProg
->_LinkedShaders
[MESA_SHADER_TESS_CTRL
]->Program
->Id
);
1337 if (shProg
->_LinkedShaders
[MESA_SHADER_TESS_EVAL
])
1338 printf(" tese prog %u\n",
1339 shProg
->_LinkedShaders
[MESA_SHADER_TESS_EVAL
]->Program
->Id
);
1344 * Use the named shader program for subsequent glUniform calls
1347 _mesa_active_program(struct gl_context
*ctx
, struct gl_shader_program
*shProg
,
1350 if ((shProg
!= NULL
) && !shProg
->data
->LinkStatus
) {
1351 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1352 "%s(program %u not linked)", caller
, shProg
->Name
);
1356 if (ctx
->Shader
.ActiveProgram
!= shProg
) {
1357 _mesa_reference_shader_program(ctx
, &ctx
->Shader
.ActiveProgram
, shProg
);
1363 * Use the named shader program for subsequent rendering.
1366 _mesa_use_shader_program(struct gl_context
*ctx
,
1367 struct gl_shader_program
*shProg
)
1369 for (int i
= 0; i
< MESA_SHADER_STAGES
; i
++) {
1370 struct gl_program
*new_prog
= NULL
;
1371 if (shProg
&& shProg
->_LinkedShaders
[i
])
1372 new_prog
= shProg
->_LinkedShaders
[i
]->Program
;
1373 _mesa_use_program(ctx
, i
, shProg
, new_prog
, &ctx
->Shader
);
1375 _mesa_active_program(ctx
, shProg
, "glUseProgram");
1380 * Do validation of the given shader program.
1381 * \param errMsg returns error message if validation fails.
1382 * \return GL_TRUE if valid, GL_FALSE if invalid (and set errMsg)
1385 validate_shader_program(const struct gl_shader_program
*shProg
,
1388 if (!shProg
->data
->LinkStatus
) {
1392 /* From the GL spec, a program is invalid if any of these are true:
1394 any two active samplers in the current program object are of
1395 different types, but refer to the same texture image unit,
1397 any active sampler in the current program object refers to a texture
1398 image unit where fixed-function fragment processing accesses a
1399 texture target that does not match the sampler type, or
1401 the sum of the number of active samplers in the program and the
1402 number of texture image units enabled for fixed-function fragment
1403 processing exceeds the combined limit on the total number of texture
1404 image units allowed.
1408 * Check: any two active samplers in the current program object are of
1409 * different types, but refer to the same texture image unit,
1411 if (!_mesa_sampler_uniforms_are_valid(shProg
, errMsg
, 100))
1419 * Called via glValidateProgram()
1422 validate_program(struct gl_context
*ctx
, GLuint program
)
1424 struct gl_shader_program
*shProg
;
1425 char errMsg
[100] = "";
1427 shProg
= _mesa_lookup_shader_program_err(ctx
, program
, "glValidateProgram");
1432 shProg
->data
->Validated
= validate_shader_program(shProg
, errMsg
);
1433 if (!shProg
->data
->Validated
) {
1434 /* update info log */
1435 if (shProg
->data
->InfoLog
) {
1436 ralloc_free(shProg
->data
->InfoLog
);
1438 shProg
->data
->InfoLog
= ralloc_strdup(shProg
->data
, errMsg
);
1444 _mesa_AttachObjectARB_no_error(GLhandleARB program
, GLhandleARB shader
)
1446 GET_CURRENT_CONTEXT(ctx
);
1447 attach_shader_no_error(ctx
, program
, shader
);
1452 _mesa_AttachObjectARB(GLhandleARB program
, GLhandleARB shader
)
1454 GET_CURRENT_CONTEXT(ctx
);
1455 attach_shader_err(ctx
, program
, shader
, "glAttachObjectARB");
1460 _mesa_AttachShader_no_error(GLuint program
, GLuint shader
)
1462 GET_CURRENT_CONTEXT(ctx
);
1463 attach_shader_no_error(ctx
, program
, shader
);
1468 _mesa_AttachShader(GLuint program
, GLuint shader
)
1470 GET_CURRENT_CONTEXT(ctx
);
1471 attach_shader_err(ctx
, program
, shader
, "glAttachShader");
1476 _mesa_CompileShader(GLuint shaderObj
)
1478 GET_CURRENT_CONTEXT(ctx
);
1479 if (MESA_VERBOSE
& VERBOSE_API
)
1480 _mesa_debug(ctx
, "glCompileShader %u\n", shaderObj
);
1481 _mesa_compile_shader(ctx
, _mesa_lookup_shader_err(ctx
, shaderObj
,
1482 "glCompileShader"));
1487 _mesa_CreateShader_no_error(GLenum type
)
1489 GET_CURRENT_CONTEXT(ctx
);
1490 return create_shader(ctx
, type
);
1495 _mesa_CreateShader(GLenum type
)
1497 GET_CURRENT_CONTEXT(ctx
);
1499 if (MESA_VERBOSE
& VERBOSE_API
)
1500 _mesa_debug(ctx
, "glCreateShader %s\n", _mesa_enum_to_string(type
));
1502 return create_shader_err(ctx
, type
, "glCreateShader");
1506 GLhandleARB GLAPIENTRY
1507 _mesa_CreateShaderObjectARB_no_error(GLenum type
)
1509 GET_CURRENT_CONTEXT(ctx
);
1510 return create_shader(ctx
, type
);
1514 GLhandleARB GLAPIENTRY
1515 _mesa_CreateShaderObjectARB(GLenum type
)
1517 GET_CURRENT_CONTEXT(ctx
);
1518 return create_shader_err(ctx
, type
, "glCreateShaderObjectARB");
1523 _mesa_CreateProgram(void)
1525 GET_CURRENT_CONTEXT(ctx
);
1526 if (MESA_VERBOSE
& VERBOSE_API
)
1527 _mesa_debug(ctx
, "glCreateProgram\n");
1528 return create_shader_program(ctx
);
1532 GLhandleARB GLAPIENTRY
1533 _mesa_CreateProgramObjectARB(void)
1535 GET_CURRENT_CONTEXT(ctx
);
1536 return create_shader_program(ctx
);
1541 _mesa_DeleteObjectARB(GLhandleARB obj
)
1543 if (MESA_VERBOSE
& VERBOSE_API
) {
1544 GET_CURRENT_CONTEXT(ctx
);
1545 _mesa_debug(ctx
, "glDeleteObjectARB(%lu)\n", (unsigned long)obj
);
1549 GET_CURRENT_CONTEXT(ctx
);
1550 FLUSH_VERTICES(ctx
, 0);
1551 if (is_program(ctx
, obj
)) {
1552 delete_shader_program(ctx
, obj
);
1554 else if (is_shader(ctx
, obj
)) {
1555 delete_shader(ctx
, obj
);
1565 _mesa_DeleteProgram(GLuint name
)
1568 GET_CURRENT_CONTEXT(ctx
);
1569 FLUSH_VERTICES(ctx
, 0);
1570 delete_shader_program(ctx
, name
);
1576 _mesa_DeleteShader(GLuint name
)
1579 GET_CURRENT_CONTEXT(ctx
);
1580 FLUSH_VERTICES(ctx
, 0);
1581 delete_shader(ctx
, name
);
1587 _mesa_DetachObjectARB_no_error(GLhandleARB program
, GLhandleARB shader
)
1589 GET_CURRENT_CONTEXT(ctx
);
1590 detach_shader_no_error(ctx
, program
, shader
);
1595 _mesa_DetachObjectARB(GLhandleARB program
, GLhandleARB shader
)
1597 GET_CURRENT_CONTEXT(ctx
);
1598 detach_shader_error(ctx
, program
, shader
);
1603 _mesa_DetachShader_no_error(GLuint program
, GLuint shader
)
1605 GET_CURRENT_CONTEXT(ctx
);
1606 detach_shader_no_error(ctx
, program
, shader
);
1611 _mesa_DetachShader(GLuint program
, GLuint shader
)
1613 GET_CURRENT_CONTEXT(ctx
);
1614 detach_shader_error(ctx
, program
, shader
);
1619 _mesa_GetAttachedObjectsARB(GLhandleARB container
, GLsizei maxCount
,
1620 GLsizei
* count
, GLhandleARB
* obj
)
1622 GET_CURRENT_CONTEXT(ctx
);
1623 get_attached_shaders(ctx
, (GLuint
)container
, maxCount
, count
, NULL
, obj
);
1628 _mesa_GetAttachedShaders(GLuint program
, GLsizei maxCount
,
1629 GLsizei
*count
, GLuint
*obj
)
1631 GET_CURRENT_CONTEXT(ctx
);
1632 get_attached_shaders(ctx
, program
, maxCount
, count
, obj
, NULL
);
1637 _mesa_GetInfoLogARB(GLhandleARB object
, GLsizei maxLength
, GLsizei
* length
,
1638 GLcharARB
* infoLog
)
1640 GET_CURRENT_CONTEXT(ctx
);
1641 if (is_program(ctx
, object
)) {
1642 get_program_info_log(ctx
, object
, maxLength
, length
, infoLog
);
1644 else if (is_shader(ctx
, object
)) {
1645 get_shader_info_log(ctx
, object
, maxLength
, length
, infoLog
);
1648 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glGetInfoLogARB");
1654 _mesa_GetObjectParameterivARB(GLhandleARB object
, GLenum pname
, GLint
*params
)
1656 GET_CURRENT_CONTEXT(ctx
);
1657 /* Implement in terms of GetProgramiv, GetShaderiv */
1658 if (is_program(ctx
, object
)) {
1659 if (pname
== GL_OBJECT_TYPE_ARB
) {
1660 *params
= GL_PROGRAM_OBJECT_ARB
;
1663 get_programiv(ctx
, object
, pname
, params
);
1666 else if (is_shader(ctx
, object
)) {
1667 if (pname
== GL_OBJECT_TYPE_ARB
) {
1668 *params
= GL_SHADER_OBJECT_ARB
;
1671 get_shaderiv(ctx
, object
, pname
, params
);
1675 _mesa_error(ctx
, GL_INVALID_VALUE
, "glGetObjectParameterivARB");
1681 _mesa_GetObjectParameterfvARB(GLhandleARB object
, GLenum pname
,
1684 GLint iparams
[1] = {0}; /* XXX is one element enough? */
1685 _mesa_GetObjectParameterivARB(object
, pname
, iparams
);
1686 params
[0] = (GLfloat
) iparams
[0];
1691 _mesa_GetProgramiv(GLuint program
, GLenum pname
, GLint
*params
)
1693 GET_CURRENT_CONTEXT(ctx
);
1694 get_programiv(ctx
, program
, pname
, params
);
1699 _mesa_GetShaderiv(GLuint shader
, GLenum pname
, GLint
*params
)
1701 GET_CURRENT_CONTEXT(ctx
);
1702 get_shaderiv(ctx
, shader
, pname
, params
);
1707 _mesa_GetProgramInfoLog(GLuint program
, GLsizei bufSize
,
1708 GLsizei
*length
, GLchar
*infoLog
)
1710 GET_CURRENT_CONTEXT(ctx
);
1711 get_program_info_log(ctx
, program
, bufSize
, length
, infoLog
);
1716 _mesa_GetShaderInfoLog(GLuint shader
, GLsizei bufSize
,
1717 GLsizei
*length
, GLchar
*infoLog
)
1719 GET_CURRENT_CONTEXT(ctx
);
1720 get_shader_info_log(ctx
, shader
, bufSize
, length
, infoLog
);
1725 _mesa_GetShaderSource(GLuint shader
, GLsizei maxLength
,
1726 GLsizei
*length
, GLchar
*sourceOut
)
1728 GET_CURRENT_CONTEXT(ctx
);
1729 get_shader_source(ctx
, shader
, maxLength
, length
, sourceOut
);
1733 GLhandleARB GLAPIENTRY
1734 _mesa_GetHandleARB(GLenum pname
)
1736 GET_CURRENT_CONTEXT(ctx
);
1737 return get_handle(ctx
, pname
);
1741 GLboolean GLAPIENTRY
1742 _mesa_IsProgram(GLuint name
)
1744 GET_CURRENT_CONTEXT(ctx
);
1745 return is_program(ctx
, name
);
1749 GLboolean GLAPIENTRY
1750 _mesa_IsShader(GLuint name
)
1752 GET_CURRENT_CONTEXT(ctx
);
1753 return is_shader(ctx
, name
);
1758 _mesa_LinkProgram_no_error(GLuint programObj
)
1760 GET_CURRENT_CONTEXT(ctx
);
1762 struct gl_shader_program
*shProg
=
1763 _mesa_lookup_shader_program(ctx
, programObj
);
1764 link_program_no_error(ctx
, shProg
);
1769 _mesa_LinkProgram(GLuint programObj
)
1771 GET_CURRENT_CONTEXT(ctx
);
1773 if (MESA_VERBOSE
& VERBOSE_API
)
1774 _mesa_debug(ctx
, "glLinkProgram %u\n", programObj
);
1776 struct gl_shader_program
*shProg
=
1777 _mesa_lookup_shader_program_err(ctx
, programObj
, "glLinkProgram");
1778 link_program_error(ctx
, shProg
);
1781 #ifdef ENABLE_SHADER_CACHE
1783 * Generate a SHA-1 hash value string for given source string.
1786 generate_sha1(const char *source
, char sha_str
[64])
1788 unsigned char sha
[20];
1789 _mesa_sha1_compute(source
, strlen(source
), sha
);
1790 _mesa_sha1_format(sha_str
, sha
);
1794 * Construct a full path for shader replacement functionality using
1797 * <path>/<stage prefix>_<CHECKSUM>.glsl
1800 construct_name(const gl_shader_stage stage
, const char *source
,
1804 static const char *types
[] = {
1805 "VS", "TC", "TE", "GS", "FS", "CS",
1808 generate_sha1(source
, sha
);
1809 return ralloc_asprintf(NULL
, "%s/%s_%s.glsl", path
, types
[stage
], sha
);
1813 * Write given shader source to a file in MESA_SHADER_DUMP_PATH.
1816 dump_shader(const gl_shader_stage stage
, const char *source
)
1818 static bool path_exists
= true;
1825 dump_path
= getenv("MESA_SHADER_DUMP_PATH");
1827 path_exists
= false;
1831 char *name
= construct_name(stage
, source
, dump_path
);
1833 f
= fopen(name
, "w");
1838 GET_CURRENT_CONTEXT(ctx
);
1839 _mesa_warning(ctx
, "could not open %s for dumping shader (%s)", name
,
1846 * Read shader source code from a file.
1847 * Useful for debugging to override an app's shader.
1850 read_shader(const gl_shader_stage stage
, const char *source
)
1853 static bool path_exists
= true;
1854 int len
, shader_size
= 0;
1861 read_path
= getenv("MESA_SHADER_READ_PATH");
1863 path_exists
= false;
1867 char *name
= construct_name(stage
, source
, read_path
);
1868 f
= fopen(name
, "r");
1873 /* allocate enough room for the entire shader */
1874 fseek(f
, 0, SEEK_END
);
1875 shader_size
= ftell(f
);
1877 assert(shader_size
);
1879 /* add one for terminating zero */
1882 buffer
= malloc(shader_size
);
1885 len
= fread(buffer
, 1, shader_size
, f
);
1893 #endif /* ENABLE_SHADER_CACHE */
1896 * Called via glShaderSource() and glShaderSourceARB() API functions.
1897 * Basically, concatenate the source code strings into one long string
1898 * and pass it to _mesa_shader_source().
1900 static ALWAYS_INLINE
void
1901 shader_source(struct gl_context
*ctx
, GLuint shaderObj
, GLsizei count
,
1902 const GLchar
*const *string
, const GLint
*length
, bool no_error
)
1905 GLsizei i
, totalLength
;
1907 struct gl_shader
*sh
;
1910 sh
= _mesa_lookup_shader_err(ctx
, shaderObj
, "glShaderSourceARB");
1914 if (string
== NULL
) {
1915 _mesa_error(ctx
, GL_INVALID_VALUE
, "glShaderSourceARB");
1919 sh
= _mesa_lookup_shader(ctx
, shaderObj
);
1923 * This array holds offsets of where the appropriate string ends, thus the
1924 * last element will be set to the total length of the source code.
1926 offsets
= malloc(count
* sizeof(GLint
));
1927 if (offsets
== NULL
) {
1928 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glShaderSourceARB");
1932 for (i
= 0; i
< count
; i
++) {
1933 if (!no_error
&& string
[i
] == NULL
) {
1934 free((GLvoid
*) offsets
);
1935 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1936 "glShaderSourceARB(null string)");
1939 if (length
== NULL
|| length
[i
] < 0)
1940 offsets
[i
] = strlen(string
[i
]);
1942 offsets
[i
] = length
[i
];
1943 /* accumulate string lengths */
1945 offsets
[i
] += offsets
[i
- 1];
1948 /* Total length of source string is sum off all strings plus two.
1949 * One extra byte for terminating zero, another extra byte to silence
1950 * valgrind warnings in the parser/grammer code.
1952 totalLength
= offsets
[count
- 1] + 2;
1953 source
= malloc(totalLength
* sizeof(GLcharARB
));
1954 if (source
== NULL
) {
1955 free((GLvoid
*) offsets
);
1956 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glShaderSourceARB");
1960 for (i
= 0; i
< count
; i
++) {
1961 GLint start
= (i
> 0) ? offsets
[i
- 1] : 0;
1962 memcpy(source
+ start
, string
[i
],
1963 (offsets
[i
] - start
) * sizeof(GLcharARB
));
1965 source
[totalLength
- 1] = '\0';
1966 source
[totalLength
- 2] = '\0';
1968 #ifdef ENABLE_SHADER_CACHE
1969 GLcharARB
*replacement
;
1971 /* Dump original shader source to MESA_SHADER_DUMP_PATH and replace
1972 * if corresponding entry found from MESA_SHADER_READ_PATH.
1974 dump_shader(sh
->Stage
, source
);
1976 replacement
= read_shader(sh
->Stage
, source
);
1979 source
= replacement
;
1981 #endif /* ENABLE_SHADER_CACHE */
1983 set_shader_source(sh
, source
);
1990 _mesa_ShaderSource_no_error(GLuint shaderObj
, GLsizei count
,
1991 const GLchar
*const *string
, const GLint
*length
)
1993 GET_CURRENT_CONTEXT(ctx
);
1994 shader_source(ctx
, shaderObj
, count
, string
, length
, true);
1999 _mesa_ShaderSource(GLuint shaderObj
, GLsizei count
,
2000 const GLchar
*const *string
, const GLint
*length
)
2002 GET_CURRENT_CONTEXT(ctx
);
2003 shader_source(ctx
, shaderObj
, count
, string
, length
, false);
2007 static ALWAYS_INLINE
void
2008 use_program(GLuint program
, bool no_error
)
2010 GET_CURRENT_CONTEXT(ctx
);
2011 struct gl_shader_program
*shProg
= NULL
;
2013 if (MESA_VERBOSE
& VERBOSE_API
)
2014 _mesa_debug(ctx
, "glUseProgram %u\n", program
);
2018 shProg
= _mesa_lookup_shader_program(ctx
, program
);
2021 if (_mesa_is_xfb_active_and_unpaused(ctx
)) {
2022 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2023 "glUseProgram(transform feedback active)");
2029 _mesa_lookup_shader_program_err(ctx
, program
, "glUseProgram");
2033 if (!shProg
->data
->LinkStatus
) {
2034 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2035 "glUseProgram(program %u not linked)", program
);
2040 if (ctx
->_Shader
->Flags
& GLSL_USE_PROG
) {
2041 print_shader_info(shProg
);
2046 /* The ARB_separate_shader_object spec says:
2048 * "The executable code for an individual shader stage is taken from
2049 * the current program for that stage. If there is a current program
2050 * object established by UseProgram, that program is considered current
2051 * for all stages. Otherwise, if there is a bound program pipeline
2052 * object (section 2.14.PPO), the program bound to the appropriate
2053 * stage of the pipeline object is considered current."
2056 /* Attach shader state to the binding point */
2057 _mesa_reference_pipeline_object(ctx
, &ctx
->_Shader
, &ctx
->Shader
);
2058 /* Update the program */
2059 _mesa_use_shader_program(ctx
, shProg
);
2061 /* Must be done first: detach the progam */
2062 _mesa_use_shader_program(ctx
, shProg
);
2063 /* Unattach shader_state binding point */
2064 _mesa_reference_pipeline_object(ctx
, &ctx
->_Shader
,
2065 ctx
->Pipeline
.Default
);
2066 /* If a pipeline was bound, rebind it */
2067 if (ctx
->Pipeline
.Current
) {
2069 _mesa_BindProgramPipeline_no_error(ctx
->Pipeline
.Current
->Name
);
2071 _mesa_BindProgramPipeline(ctx
->Pipeline
.Current
->Name
);
2075 _mesa_update_vertex_processing_mode(ctx
);
2080 _mesa_UseProgram_no_error(GLuint program
)
2082 use_program(program
, true);
2087 _mesa_UseProgram(GLuint program
)
2089 use_program(program
, false);
2094 _mesa_ValidateProgram(GLuint program
)
2096 GET_CURRENT_CONTEXT(ctx
);
2097 validate_program(ctx
, program
);
2102 * For OpenGL ES 2.0, GL_ARB_ES2_compatibility
2105 _mesa_GetShaderPrecisionFormat(GLenum shadertype
, GLenum precisiontype
,
2106 GLint
* range
, GLint
* precision
)
2108 const struct gl_program_constants
*limits
;
2109 const struct gl_precision
*p
;
2110 GET_CURRENT_CONTEXT(ctx
);
2112 switch (shadertype
) {
2113 case GL_VERTEX_SHADER
:
2114 limits
= &ctx
->Const
.Program
[MESA_SHADER_VERTEX
];
2116 case GL_FRAGMENT_SHADER
:
2117 limits
= &ctx
->Const
.Program
[MESA_SHADER_FRAGMENT
];
2120 _mesa_error(ctx
, GL_INVALID_ENUM
,
2121 "glGetShaderPrecisionFormat(shadertype)");
2125 switch (precisiontype
) {
2127 p
= &limits
->LowFloat
;
2129 case GL_MEDIUM_FLOAT
:
2130 p
= &limits
->MediumFloat
;
2133 p
= &limits
->HighFloat
;
2136 p
= &limits
->LowInt
;
2139 p
= &limits
->MediumInt
;
2142 p
= &limits
->HighInt
;
2145 _mesa_error(ctx
, GL_INVALID_ENUM
,
2146 "glGetShaderPrecisionFormat(precisiontype)");
2150 range
[0] = p
->RangeMin
;
2151 range
[1] = p
->RangeMax
;
2152 precision
[0] = p
->Precision
;
2157 * For OpenGL ES 2.0, GL_ARB_ES2_compatibility
2160 _mesa_ReleaseShaderCompiler(void)
2162 _mesa_destroy_shader_compiler_caches();
2167 * For OpenGL ES 2.0, GL_ARB_ES2_compatibility
2170 _mesa_ShaderBinary(GLint n
, const GLuint
* shaders
, GLenum binaryformat
,
2171 const void* binary
, GLint length
)
2173 GET_CURRENT_CONTEXT(ctx
);
2174 struct gl_shader
**sh
;
2176 /* Page 68, section 7.2 'Shader Binaries" of the of the OpenGL ES 3.1, and
2177 * page 88 of the OpenGL 4.5 specs state:
2179 * "An INVALID_VALUE error is generated if count or length is negative.
2180 * An INVALID_ENUM error is generated if binaryformat is not a supported
2181 * format returned in SHADER_BINARY_FORMATS."
2183 if (n
< 0 || length
< 0) {
2184 _mesa_error(ctx
, GL_INVALID_VALUE
, "glShaderBinary(count or length < 0)");
2188 /* Get all shader objects at once so we can make the operation
2191 if (n
> SIZE_MAX
/ sizeof(*sh
)) {
2192 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glShaderBinary(count)");
2196 sh
= alloca(sizeof(*sh
) * (size_t)n
);
2198 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glShaderBinary");
2202 for (int i
= 0; i
< n
; ++i
) {
2203 sh
[i
] = _mesa_lookup_shader_err(ctx
, shaders
[i
], "glShaderBinary");
2208 if (binaryformat
== GL_SHADER_BINARY_FORMAT_SPIR_V_ARB
) {
2209 if (!ctx
->Extensions
.ARB_gl_spirv
) {
2210 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glShaderBinary(SPIR-V)");
2212 _mesa_spirv_shader_binary(ctx
, (unsigned) n
, sh
, binary
,
2219 _mesa_error(ctx
, GL_INVALID_ENUM
, "glShaderBinary(format)");
2224 _mesa_GetProgramBinary(GLuint program
, GLsizei bufSize
, GLsizei
*length
,
2225 GLenum
*binaryFormat
, GLvoid
*binary
)
2227 struct gl_shader_program
*shProg
;
2228 GLsizei length_dummy
;
2229 GET_CURRENT_CONTEXT(ctx
);
2232 _mesa_error(ctx
, GL_INVALID_VALUE
, "glGetProgramBinary(bufSize < 0)");
2236 shProg
= _mesa_lookup_shader_program_err(ctx
, program
, "glGetProgramBinary");
2240 /* The ARB_get_program_binary spec says:
2242 * "If <length> is NULL, then no length is returned."
2244 * Ensure that length always points to valid storage to avoid multiple NULL
2245 * pointer checks below.
2248 length
= &length_dummy
;
2251 /* The ARB_get_program_binary spec says:
2253 * "When a program object's LINK_STATUS is FALSE, its program binary
2254 * length is zero, and a call to GetProgramBinary will generate an
2255 * INVALID_OPERATION error.
2257 if (!shProg
->data
->LinkStatus
) {
2258 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2259 "glGetProgramBinary(program %u not linked)",
2265 if (ctx
->Const
.NumProgramBinaryFormats
== 0) {
2267 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2268 "glGetProgramBinary(driver supports zero binary formats)");
2270 _mesa_get_program_binary(ctx
, shProg
, bufSize
, length
, binaryFormat
,
2272 assert(*length
== 0 || *binaryFormat
== GL_PROGRAM_BINARY_FORMAT_MESA
);
2277 _mesa_ProgramBinary(GLuint program
, GLenum binaryFormat
,
2278 const GLvoid
*binary
, GLsizei length
)
2280 struct gl_shader_program
*shProg
;
2281 GET_CURRENT_CONTEXT(ctx
);
2283 shProg
= _mesa_lookup_shader_program_err(ctx
, program
, "glProgramBinary");
2287 _mesa_clear_shader_program_data(ctx
, shProg
);
2288 shProg
->data
= _mesa_create_shader_program_data();
2290 /* Section 2.3.1 (Errors) of the OpenGL 4.5 spec says:
2292 * "If a negative number is provided where an argument of type sizei or
2293 * sizeiptr is specified, an INVALID_VALUE error is generated."
2296 _mesa_error(ctx
, GL_INVALID_VALUE
, "glProgramBinary(length < 0)");
2300 if (ctx
->Const
.NumProgramBinaryFormats
== 0 ||
2301 binaryFormat
!= GL_PROGRAM_BINARY_FORMAT_MESA
) {
2302 /* The ARB_get_program_binary spec says:
2304 * "<binaryFormat> and <binary> must be those returned by a previous
2305 * call to GetProgramBinary, and <length> must be the length of the
2306 * program binary as returned by GetProgramBinary or GetProgramiv with
2307 * <pname> PROGRAM_BINARY_LENGTH. Loading the program binary will fail,
2308 * setting the LINK_STATUS of <program> to FALSE, if these conditions
2311 * Since any value of binaryFormat passed "is not one of those specified as
2312 * allowable for [this] command, an INVALID_ENUM error is generated."
2314 shProg
->data
->LinkStatus
= LINKING_FAILURE
;
2315 _mesa_error(ctx
, GL_INVALID_ENUM
, "glProgramBinary");
2317 _mesa_program_binary(ctx
, shProg
, binaryFormat
, binary
, length
);
2322 static ALWAYS_INLINE
void
2323 program_parameteri(struct gl_context
*ctx
, struct gl_shader_program
*shProg
,
2324 GLuint pname
, GLint value
, bool no_error
)
2327 case GL_PROGRAM_BINARY_RETRIEVABLE_HINT
:
2328 /* This enum isn't part of the OES extension for OpenGL ES 2.0, but it
2329 * is part of OpenGL ES 3.0. For the ES2 case, this function shouldn't
2330 * even be in the dispatch table, so we shouldn't need to expclicitly
2333 * On desktop, we ignore the 3.0+ requirement because it is silly.
2336 /* The ARB_get_program_binary extension spec says:
2338 * "An INVALID_VALUE error is generated if the <value> argument to
2339 * ProgramParameteri is not TRUE or FALSE."
2341 if (!no_error
&& value
!= GL_TRUE
&& value
!= GL_FALSE
) {
2345 /* No need to notify the driver. Any changes will actually take effect
2346 * the next time the shader is linked.
2348 * The ARB_get_program_binary extension spec says:
2350 * "To indicate that a program binary is likely to be retrieved,
2351 * ProgramParameteri should be called with <pname>
2352 * PROGRAM_BINARY_RETRIEVABLE_HINT and <value> TRUE. This setting
2353 * will not be in effect until the next time LinkProgram or
2354 * ProgramBinary has been called successfully."
2356 * The resloution of issue 9 in the extension spec also says:
2358 * "The application may use the PROGRAM_BINARY_RETRIEVABLE_HINT hint
2359 * to indicate to the GL implementation that this program will
2360 * likely be saved with GetProgramBinary at some point. This will
2361 * give the GL implementation the opportunity to track any state
2362 * changes made to the program before being saved such that when it
2363 * is loaded again a recompile can be avoided."
2365 shProg
->BinaryRetreivableHint
= value
;
2368 case GL_PROGRAM_SEPARABLE
:
2369 /* Spec imply that the behavior is the same as ARB_get_program_binary
2370 * Chapter 7.3 Program Objects
2372 if (!no_error
&& value
!= GL_TRUE
&& value
!= GL_FALSE
) {
2375 shProg
->SeparateShader
= value
;
2380 _mesa_error(ctx
, GL_INVALID_ENUM
, "glProgramParameteri(pname=%s)",
2381 _mesa_enum_to_string(pname
));
2387 _mesa_error(ctx
, GL_INVALID_VALUE
,
2388 "glProgramParameteri(pname=%s, value=%d): "
2389 "value must be 0 or 1.",
2390 _mesa_enum_to_string(pname
),
2396 _mesa_ProgramParameteri_no_error(GLuint program
, GLenum pname
, GLint value
)
2398 GET_CURRENT_CONTEXT(ctx
);
2400 struct gl_shader_program
*shProg
= _mesa_lookup_shader_program(ctx
, program
);
2401 program_parameteri(ctx
, shProg
, pname
, value
, true);
2406 _mesa_ProgramParameteri(GLuint program
, GLenum pname
, GLint value
)
2408 struct gl_shader_program
*shProg
;
2409 GET_CURRENT_CONTEXT(ctx
);
2411 shProg
= _mesa_lookup_shader_program_err(ctx
, program
,
2412 "glProgramParameteri");
2416 program_parameteri(ctx
, shProg
, pname
, value
, false);
2421 _mesa_use_program(struct gl_context
*ctx
, gl_shader_stage stage
,
2422 struct gl_shader_program
*shProg
, struct gl_program
*prog
,
2423 struct gl_pipeline_object
*shTarget
)
2425 struct gl_program
**target
;
2427 target
= &shTarget
->CurrentProgram
[stage
];
2429 _mesa_program_init_subroutine_defaults(ctx
, prog
);
2432 if (*target
!= prog
) {
2433 /* Program is current, flush it */
2434 if (shTarget
== ctx
->_Shader
) {
2435 FLUSH_VERTICES(ctx
, _NEW_PROGRAM
| _NEW_PROGRAM_CONSTANTS
);
2438 _mesa_reference_shader_program(ctx
,
2439 &shTarget
->ReferencedPrograms
[stage
],
2441 _mesa_reference_program(ctx
, target
, prog
);
2442 if (stage
== MESA_SHADER_VERTEX
)
2443 _mesa_update_vertex_processing_mode(ctx
);
2451 * Copy program-specific data generated by linking from the gl_shader_program
2452 * object to the gl_program object referred to by the gl_linked_shader.
2454 * This function expects _mesa_reference_program() to have been previously
2455 * called setting the gl_linked_shaders program reference.
2458 _mesa_copy_linked_program_data(const struct gl_shader_program
*src
,
2459 struct gl_linked_shader
*dst_sh
)
2461 assert(dst_sh
->Program
);
2463 struct gl_program
*dst
= dst_sh
->Program
;
2465 dst
->info
.separate_shader
= src
->SeparateShader
;
2467 switch (dst_sh
->Stage
) {
2468 case MESA_SHADER_GEOMETRY
: {
2469 dst
->info
.gs
.vertices_in
= src
->Geom
.VerticesIn
;
2470 dst
->info
.gs
.uses_end_primitive
= src
->Geom
.UsesEndPrimitive
;
2471 dst
->info
.gs
.uses_streams
= src
->Geom
.UsesStreams
;
2474 case MESA_SHADER_FRAGMENT
: {
2475 dst
->info
.fs
.depth_layout
= src
->FragDepthLayout
;
2478 case MESA_SHADER_COMPUTE
: {
2479 dst
->info
.cs
.shared_size
= src
->Comp
.SharedSize
;
2488 * ARB_separate_shader_objects: Compile & Link Program
2491 _mesa_CreateShaderProgramv(GLenum type
, GLsizei count
,
2492 const GLchar
* const *strings
)
2494 GET_CURRENT_CONTEXT(ctx
);
2496 const GLuint shader
= create_shader_err(ctx
, type
, "glCreateShaderProgramv");
2500 * According to OpenGL 4.5 and OpenGL ES 3.1 standards, section 7.3:
2501 * GL_INVALID_VALUE should be generated if count < 0
2504 _mesa_error(ctx
, GL_INVALID_VALUE
, "glCreateShaderProgram (count < 0)");
2509 struct gl_shader
*sh
= _mesa_lookup_shader(ctx
, shader
);
2511 _mesa_ShaderSource(shader
, count
, strings
, NULL
);
2512 _mesa_compile_shader(ctx
, sh
);
2514 program
= create_shader_program(ctx
);
2516 struct gl_shader_program
*shProg
;
2517 GLint compiled
= GL_FALSE
;
2519 shProg
= _mesa_lookup_shader_program(ctx
, program
);
2521 shProg
->SeparateShader
= GL_TRUE
;
2523 get_shaderiv(ctx
, shader
, GL_COMPILE_STATUS
, &compiled
);
2525 attach_shader_err(ctx
, program
, shader
, "glCreateShaderProgramv");
2526 _mesa_link_program(ctx
, shProg
);
2527 detach_shader_error(ctx
, program
, shader
);
2531 if (active
-user
-defined
-varyings
-in
-linked
-program
) {
2532 append
-error
-to
-info
-log
;
2533 shProg
->data
->LinkStatus
= LINKING_FAILURE
;
2538 ralloc_strcat(&shProg
->data
->InfoLog
, sh
->InfoLog
);
2541 delete_shader(ctx
, shader
);
2549 * For GL_ARB_tessellation_shader
2552 _mesa_PatchParameteri_no_error(GLenum pname
, GLint value
)
2554 GET_CURRENT_CONTEXT(ctx
);
2555 ctx
->TessCtrlProgram
.patch_vertices
= value
;
2559 extern void GLAPIENTRY
2560 _mesa_PatchParameteri(GLenum pname
, GLint value
)
2562 GET_CURRENT_CONTEXT(ctx
);
2564 if (!_mesa_has_tessellation(ctx
)) {
2565 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glPatchParameteri");
2569 if (pname
!= GL_PATCH_VERTICES
) {
2570 _mesa_error(ctx
, GL_INVALID_ENUM
, "glPatchParameteri");
2574 if (value
<= 0 || value
> ctx
->Const
.MaxPatchVertices
) {
2575 _mesa_error(ctx
, GL_INVALID_VALUE
, "glPatchParameteri");
2579 ctx
->TessCtrlProgram
.patch_vertices
= value
;
2583 extern void GLAPIENTRY
2584 _mesa_PatchParameterfv(GLenum pname
, const GLfloat
*values
)
2586 GET_CURRENT_CONTEXT(ctx
);
2588 if (!_mesa_has_tessellation(ctx
)) {
2589 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glPatchParameterfv");
2594 case GL_PATCH_DEFAULT_OUTER_LEVEL
:
2595 FLUSH_VERTICES(ctx
, 0);
2596 memcpy(ctx
->TessCtrlProgram
.patch_default_outer_level
, values
,
2597 4 * sizeof(GLfloat
));
2598 ctx
->NewDriverState
|= ctx
->DriverFlags
.NewDefaultTessLevels
;
2600 case GL_PATCH_DEFAULT_INNER_LEVEL
:
2601 FLUSH_VERTICES(ctx
, 0);
2602 memcpy(ctx
->TessCtrlProgram
.patch_default_inner_level
, values
,
2603 2 * sizeof(GLfloat
));
2604 ctx
->NewDriverState
|= ctx
->DriverFlags
.NewDefaultTessLevels
;
2607 _mesa_error(ctx
, GL_INVALID_ENUM
, "glPatchParameterfv");
2613 * ARB_shader_subroutine
2616 _mesa_GetSubroutineUniformLocation(GLuint program
, GLenum shadertype
,
2619 GET_CURRENT_CONTEXT(ctx
);
2620 const char *api_name
= "glGetSubroutineUniformLocation";
2621 struct gl_shader_program
*shProg
;
2622 GLenum resource_type
;
2623 gl_shader_stage stage
;
2625 if (!_mesa_validate_shader_target(ctx
, shadertype
)) {
2626 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s", api_name
);
2630 shProg
= _mesa_lookup_shader_program_err(ctx
, program
, api_name
);
2634 stage
= _mesa_shader_enum_to_shader_stage(shadertype
);
2635 if (!shProg
->_LinkedShaders
[stage
]) {
2636 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s", api_name
);
2640 resource_type
= _mesa_shader_stage_to_subroutine_uniform(stage
);
2641 return _mesa_program_resource_location(shProg
, resource_type
, name
);
2645 _mesa_GetSubroutineIndex(GLuint program
, GLenum shadertype
,
2648 GET_CURRENT_CONTEXT(ctx
);
2649 const char *api_name
= "glGetSubroutineIndex";
2650 struct gl_shader_program
*shProg
;
2651 struct gl_program_resource
*res
;
2652 GLenum resource_type
;
2653 gl_shader_stage stage
;
2655 if (!_mesa_validate_shader_target(ctx
, shadertype
)) {
2656 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s", api_name
);
2660 shProg
= _mesa_lookup_shader_program_err(ctx
, program
, api_name
);
2664 stage
= _mesa_shader_enum_to_shader_stage(shadertype
);
2665 if (!shProg
->_LinkedShaders
[stage
]) {
2666 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s", api_name
);
2670 resource_type
= _mesa_shader_stage_to_subroutine(stage
);
2671 res
= _mesa_program_resource_find_name(shProg
, resource_type
, name
, NULL
);
2676 return _mesa_program_resource_index(shProg
, res
);
2681 _mesa_GetActiveSubroutineUniformiv(GLuint program
, GLenum shadertype
,
2682 GLuint index
, GLenum pname
, GLint
*values
)
2684 GET_CURRENT_CONTEXT(ctx
);
2685 const char *api_name
= "glGetActiveSubroutineUniformiv";
2686 struct gl_shader_program
*shProg
;
2687 struct gl_linked_shader
*sh
;
2688 gl_shader_stage stage
;
2689 struct gl_program_resource
*res
;
2690 const struct gl_uniform_storage
*uni
;
2691 GLenum resource_type
;
2694 if (!_mesa_validate_shader_target(ctx
, shadertype
)) {
2695 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s", api_name
);
2699 shProg
= _mesa_lookup_shader_program_err(ctx
, program
, api_name
);
2703 stage
= _mesa_shader_enum_to_shader_stage(shadertype
);
2704 resource_type
= _mesa_shader_stage_to_subroutine_uniform(stage
);
2706 sh
= shProg
->_LinkedShaders
[stage
];
2708 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s", api_name
);
2712 struct gl_program
*p
= shProg
->_LinkedShaders
[stage
]->Program
;
2713 if (index
>= p
->sh
.NumSubroutineUniforms
) {
2714 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s: invalid index greater than GL_ACTIVE_SUBROUTINE_UNIFORMS", api_name
);
2719 case GL_NUM_COMPATIBLE_SUBROUTINES
: {
2720 res
= _mesa_program_resource_find_index(shProg
, resource_type
, index
);
2723 values
[0] = uni
->num_compatible_subroutines
;
2727 case GL_COMPATIBLE_SUBROUTINES
: {
2728 res
= _mesa_program_resource_find_index(shProg
, resource_type
, index
);
2732 for (i
= 0; i
< p
->sh
.NumSubroutineFunctions
; i
++) {
2733 struct gl_subroutine_function
*fn
= &p
->sh
.SubroutineFunctions
[i
];
2734 for (j
= 0; j
< fn
->num_compat_types
; j
++) {
2735 if (fn
->types
[j
] == uni
->type
) {
2736 values
[count
++] = i
;
2744 case GL_UNIFORM_SIZE
:
2745 res
= _mesa_program_resource_find_index(shProg
, resource_type
, index
);
2748 values
[0] = uni
->array_elements
? uni
->array_elements
: 1;
2751 case GL_UNIFORM_NAME_LENGTH
:
2752 res
= _mesa_program_resource_find_index(shProg
, resource_type
, index
);
2754 values
[0] = strlen(_mesa_program_resource_name(res
)) + 1
2755 + ((_mesa_program_resource_array_size(res
) != 0) ? 3 : 0);
2759 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s", api_name
);
2766 _mesa_GetActiveSubroutineUniformName(GLuint program
, GLenum shadertype
,
2767 GLuint index
, GLsizei bufsize
,
2768 GLsizei
*length
, GLchar
*name
)
2770 GET_CURRENT_CONTEXT(ctx
);
2771 const char *api_name
= "glGetActiveSubroutineUniformName";
2772 struct gl_shader_program
*shProg
;
2773 GLenum resource_type
;
2774 gl_shader_stage stage
;
2776 if (!_mesa_validate_shader_target(ctx
, shadertype
)) {
2777 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s", api_name
);
2781 shProg
= _mesa_lookup_shader_program_err(ctx
, program
, api_name
);
2785 stage
= _mesa_shader_enum_to_shader_stage(shadertype
);
2786 if (!shProg
->_LinkedShaders
[stage
]) {
2787 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s", api_name
);
2791 resource_type
= _mesa_shader_stage_to_subroutine_uniform(stage
);
2792 /* get program resource name */
2793 _mesa_get_program_resource_name(shProg
, resource_type
,
2795 length
, name
, api_name
);
2800 _mesa_GetActiveSubroutineName(GLuint program
, GLenum shadertype
,
2801 GLuint index
, GLsizei bufsize
,
2802 GLsizei
*length
, GLchar
*name
)
2804 GET_CURRENT_CONTEXT(ctx
);
2805 const char *api_name
= "glGetActiveSubroutineName";
2806 struct gl_shader_program
*shProg
;
2807 GLenum resource_type
;
2808 gl_shader_stage stage
;
2810 if (!_mesa_validate_shader_target(ctx
, shadertype
)) {
2811 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s", api_name
);
2815 shProg
= _mesa_lookup_shader_program_err(ctx
, program
, api_name
);
2819 stage
= _mesa_shader_enum_to_shader_stage(shadertype
);
2820 if (!shProg
->_LinkedShaders
[stage
]) {
2821 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s", api_name
);
2824 resource_type
= _mesa_shader_stage_to_subroutine(stage
);
2825 _mesa_get_program_resource_name(shProg
, resource_type
,
2827 length
, name
, api_name
);
2831 _mesa_UniformSubroutinesuiv(GLenum shadertype
, GLsizei count
,
2832 const GLuint
*indices
)
2834 GET_CURRENT_CONTEXT(ctx
);
2835 const char *api_name
= "glUniformSubroutinesuiv";
2836 gl_shader_stage stage
;
2839 if (!_mesa_validate_shader_target(ctx
, shadertype
)) {
2840 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s", api_name
);
2844 stage
= _mesa_shader_enum_to_shader_stage(shadertype
);
2845 struct gl_program
*p
= ctx
->_Shader
->CurrentProgram
[stage
];
2847 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s", api_name
);
2851 if (count
!= p
->sh
.NumSubroutineUniformRemapTable
) {
2852 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s", api_name
);
2857 bool flushed
= false;
2859 struct gl_uniform_storage
*uni
= p
->sh
.SubroutineUniformRemapTable
[i
];
2866 _mesa_flush_vertices_for_uniforms(ctx
, uni
);
2870 int uni_count
= uni
->array_elements
? uni
->array_elements
: 1;
2873 for (j
= i
; j
< i
+ uni_count
; j
++) {
2874 struct gl_subroutine_function
*subfn
= NULL
;
2875 if (indices
[j
] > p
->sh
.MaxSubroutineFunctionIndex
) {
2876 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s", api_name
);
2880 for (f
= 0; f
< p
->sh
.NumSubroutineFunctions
; f
++) {
2881 if (p
->sh
.SubroutineFunctions
[f
].index
== indices
[j
])
2882 subfn
= &p
->sh
.SubroutineFunctions
[f
];
2889 for (k
= 0; k
< subfn
->num_compat_types
; k
++) {
2890 if (subfn
->types
[k
] == uni
->type
)
2893 if (k
== subfn
->num_compat_types
) {
2894 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s", api_name
);
2898 ctx
->SubroutineIndex
[p
->info
.stage
].IndexPtr
[j
] = indices
[j
];
2906 _mesa_GetUniformSubroutineuiv(GLenum shadertype
, GLint location
,
2909 GET_CURRENT_CONTEXT(ctx
);
2910 const char *api_name
= "glGetUniformSubroutineuiv";
2911 gl_shader_stage stage
;
2913 if (!_mesa_validate_shader_target(ctx
, shadertype
)) {
2914 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s", api_name
);
2918 stage
= _mesa_shader_enum_to_shader_stage(shadertype
);
2919 struct gl_program
*p
= ctx
->_Shader
->CurrentProgram
[stage
];
2921 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s", api_name
);
2925 if (location
>= p
->sh
.NumSubroutineUniformRemapTable
) {
2926 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s", api_name
);
2930 *params
= ctx
->SubroutineIndex
[p
->info
.stage
].IndexPtr
[location
];
2935 _mesa_GetProgramStageiv(GLuint program
, GLenum shadertype
,
2936 GLenum pname
, GLint
*values
)
2938 GET_CURRENT_CONTEXT(ctx
);
2939 const char *api_name
= "glGetProgramStageiv";
2940 struct gl_shader_program
*shProg
;
2941 struct gl_linked_shader
*sh
;
2942 gl_shader_stage stage
;
2944 if (!_mesa_validate_shader_target(ctx
, shadertype
)) {
2945 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s", api_name
);
2949 shProg
= _mesa_lookup_shader_program_err(ctx
, program
, api_name
);
2953 stage
= _mesa_shader_enum_to_shader_stage(shadertype
);
2954 sh
= shProg
->_LinkedShaders
[stage
];
2956 /* ARB_shader_subroutine doesn't ask the program to be linked, or list any
2957 * INVALID_OPERATION in the case of not be linked.
2959 * And for some pnames, like GL_ACTIVE_SUBROUTINE_UNIFORMS, you can ask the
2960 * same info using other specs (ARB_program_interface_query), without the
2961 * need of the program to be linked, being the value for that case 0.
2963 * But at the same time, some other methods require the program to be
2964 * linked for pname related to locations, so it would be inconsistent to
2965 * not do the same here. So we are:
2966 * * Return GL_INVALID_OPERATION if not linked only for locations.
2967 * * Setting a default value of 0, to be returned if not linked.
2971 if (pname
== GL_ACTIVE_SUBROUTINE_UNIFORM_LOCATIONS
) {
2972 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s", api_name
);
2977 struct gl_program
*p
= sh
->Program
;
2979 case GL_ACTIVE_SUBROUTINES
:
2980 values
[0] = p
->sh
.NumSubroutineFunctions
;
2982 case GL_ACTIVE_SUBROUTINE_UNIFORM_LOCATIONS
:
2983 values
[0] = p
->sh
.NumSubroutineUniformRemapTable
;
2985 case GL_ACTIVE_SUBROUTINE_UNIFORMS
:
2986 values
[0] = p
->sh
.NumSubroutineUniforms
;
2988 case GL_ACTIVE_SUBROUTINE_MAX_LENGTH
:
2992 GLenum resource_type
;
2993 struct gl_program_resource
*res
;
2995 resource_type
= _mesa_shader_stage_to_subroutine(stage
);
2996 for (i
= 0; i
< p
->sh
.NumSubroutineFunctions
; i
++) {
2997 res
= _mesa_program_resource_find_index(shProg
, resource_type
, i
);
2999 const GLint len
= strlen(_mesa_program_resource_name(res
)) + 1;
3004 values
[0] = max_len
;
3007 case GL_ACTIVE_SUBROUTINE_UNIFORM_MAX_LENGTH
:
3011 GLenum resource_type
;
3012 struct gl_program_resource
*res
;
3014 resource_type
= _mesa_shader_stage_to_subroutine_uniform(stage
);
3015 for (i
= 0; i
< p
->sh
.NumSubroutineUniformRemapTable
; i
++) {
3016 res
= _mesa_program_resource_find_index(shProg
, resource_type
, i
);
3018 const GLint len
= strlen(_mesa_program_resource_name(res
)) + 1
3019 + ((_mesa_program_resource_array_size(res
) != 0) ? 3 : 0);
3025 values
[0] = max_len
;
3029 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s", api_name
);
3036 find_compat_subroutine(struct gl_program
*p
, const struct glsl_type
*type
)
3040 for (i
= 0; i
< p
->sh
.NumSubroutineFunctions
; i
++) {
3041 struct gl_subroutine_function
*fn
= &p
->sh
.SubroutineFunctions
[i
];
3042 for (j
= 0; j
< fn
->num_compat_types
; j
++) {
3043 if (fn
->types
[j
] == type
)
3051 _mesa_shader_write_subroutine_index(struct gl_context
*ctx
,
3052 struct gl_program
*p
)
3056 if (p
->sh
.NumSubroutineUniformRemapTable
== 0)
3061 struct gl_uniform_storage
*uni
= p
->sh
.SubroutineUniformRemapTable
[i
];
3070 uni_count
= uni
->array_elements
? uni
->array_elements
: 1;
3071 for (j
= 0; j
< uni_count
; j
++) {
3072 val
= ctx
->SubroutineIndex
[p
->info
.stage
].IndexPtr
[i
+ j
];
3073 memcpy(&uni
->storage
[j
], &val
, sizeof(int));
3076 _mesa_propagate_uniforms_to_driver_storage(uni
, 0, uni_count
);
3078 } while(i
< p
->sh
.NumSubroutineUniformRemapTable
);
3082 _mesa_shader_write_subroutine_indices(struct gl_context
*ctx
,
3083 gl_shader_stage stage
)
3085 if (ctx
->_Shader
->CurrentProgram
[stage
])
3086 _mesa_shader_write_subroutine_index(ctx
,
3087 ctx
->_Shader
->CurrentProgram
[stage
]);
3091 _mesa_program_init_subroutine_defaults(struct gl_context
*ctx
,
3092 struct gl_program
*p
)
3096 struct gl_subroutine_index_binding
*binding
= &ctx
->SubroutineIndex
[p
->info
.stage
];
3097 if (binding
->NumIndex
!= p
->sh
.NumSubroutineUniformRemapTable
) {
3098 binding
->IndexPtr
= realloc(binding
->IndexPtr
,
3099 p
->sh
.NumSubroutineUniformRemapTable
* (sizeof(GLuint
)));
3100 binding
->NumIndex
= p
->sh
.NumSubroutineUniformRemapTable
;
3103 for (int i
= 0; i
< p
->sh
.NumSubroutineUniformRemapTable
; i
++) {
3104 struct gl_uniform_storage
*uni
= p
->sh
.SubroutineUniformRemapTable
[i
];
3109 binding
->IndexPtr
[i
] = find_compat_subroutine(p
, uni
->type
);