2 * Mesa 3-D graphics library
4 * Copyright (C) 2015 Intel Corporation. All Rights Reserved.
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included
14 * in all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
17 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22 * OTHER DEALINGS IN THE SOFTWARE.
26 #include "main/enums.h"
27 #include "main/macros.h"
28 #include "main/mtypes.h"
29 #include "main/shaderapi.h"
30 #include "main/shaderobj.h"
31 #include "main/context.h"
32 #include "program_resource.h"
33 #include "ir_uniform.h"
35 supported_interface_enum(struct gl_context
*ctx
, GLenum iface
)
39 case GL_UNIFORM_BLOCK
:
40 case GL_PROGRAM_INPUT
:
41 case GL_PROGRAM_OUTPUT
:
42 case GL_TRANSFORM_FEEDBACK_VARYING
:
43 case GL_ATOMIC_COUNTER_BUFFER
:
45 case GL_VERTEX_SUBROUTINE
:
46 case GL_FRAGMENT_SUBROUTINE
:
47 case GL_VERTEX_SUBROUTINE_UNIFORM
:
48 case GL_FRAGMENT_SUBROUTINE_UNIFORM
:
49 return _mesa_has_shader_subroutine(ctx
);
50 case GL_GEOMETRY_SUBROUTINE
:
51 case GL_GEOMETRY_SUBROUTINE_UNIFORM
:
52 return _mesa_has_geometry_shaders(ctx
) && _mesa_has_shader_subroutine(ctx
);
53 case GL_COMPUTE_SUBROUTINE
:
54 case GL_COMPUTE_SUBROUTINE_UNIFORM
:
55 return _mesa_has_compute_shaders(ctx
) && _mesa_has_shader_subroutine(ctx
);
56 case GL_TESS_CONTROL_SUBROUTINE
:
57 case GL_TESS_EVALUATION_SUBROUTINE
:
58 case GL_TESS_CONTROL_SUBROUTINE_UNIFORM
:
59 case GL_TESS_EVALUATION_SUBROUTINE_UNIFORM
:
60 return _mesa_has_tessellation(ctx
) && _mesa_has_shader_subroutine(ctx
);
61 case GL_BUFFER_VARIABLE
:
62 case GL_SHADER_STORAGE_BLOCK
:
69 _mesa_GetProgramInterfaceiv(GLuint program
, GLenum programInterface
,
70 GLenum pname
, GLint
*params
)
72 GET_CURRENT_CONTEXT(ctx
);
74 struct gl_shader_program
*shProg
=
75 _mesa_lookup_shader_program_err(ctx
, program
,
76 "glGetProgramInterfaceiv");
81 _mesa_error(ctx
, GL_INVALID_OPERATION
,
82 "glGetProgramInterfaceiv(params NULL)");
86 /* Validate interface. */
87 if (!supported_interface_enum(ctx
, programInterface
)) {
88 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glGetProgramInterfaceiv(%s)",
89 _mesa_enum_to_string(programInterface
));
93 /* Validate pname against interface. */
95 case GL_ACTIVE_RESOURCES
:
96 for (i
= 0, *params
= 0; i
< shProg
->NumProgramResourceList
; i
++)
97 if (shProg
->ProgramResourceList
[i
].Type
== programInterface
)
100 case GL_MAX_NAME_LENGTH
:
101 if (programInterface
== GL_ATOMIC_COUNTER_BUFFER
) {
102 _mesa_error(ctx
, GL_INVALID_OPERATION
,
103 "glGetProgramInterfaceiv(%s pname %s)",
104 _mesa_enum_to_string(programInterface
),
105 _mesa_enum_to_string(pname
));
108 /* Name length consists of base name, 3 additional chars '[0]' if
109 * resource is an array and finally 1 char for string terminator.
111 for (i
= 0, *params
= 0; i
< shProg
->NumProgramResourceList
; i
++) {
112 if (shProg
->ProgramResourceList
[i
].Type
!= programInterface
)
115 _mesa_program_resource_name(&shProg
->ProgramResourceList
[i
]);
116 unsigned array_size
=
117 _mesa_program_resource_array_size(&shProg
->ProgramResourceList
[i
]);
118 *params
= MAX2(*params
, strlen(name
) + (array_size
? 3 : 0) + 1);
121 case GL_MAX_NUM_ACTIVE_VARIABLES
:
122 switch (programInterface
) {
123 case GL_UNIFORM_BLOCK
:
124 for (i
= 0, *params
= 0; i
< shProg
->NumProgramResourceList
; i
++) {
125 if (shProg
->ProgramResourceList
[i
].Type
== programInterface
) {
126 struct gl_uniform_block
*block
=
127 (struct gl_uniform_block
*)
128 shProg
->ProgramResourceList
[i
].Data
;
129 *params
= MAX2(*params
, block
->NumUniforms
);
133 case GL_ATOMIC_COUNTER_BUFFER
:
134 for (i
= 0, *params
= 0; i
< shProg
->NumProgramResourceList
; i
++) {
135 if (shProg
->ProgramResourceList
[i
].Type
== programInterface
) {
136 struct gl_active_atomic_buffer
*buffer
=
137 (struct gl_active_atomic_buffer
*)
138 shProg
->ProgramResourceList
[i
].Data
;
139 *params
= MAX2(*params
, buffer
->NumUniforms
);
144 _mesa_error(ctx
, GL_INVALID_OPERATION
,
145 "glGetProgramInterfaceiv(%s pname %s)",
146 _mesa_enum_to_string(programInterface
),
147 _mesa_enum_to_string(pname
));
150 case GL_MAX_NUM_COMPATIBLE_SUBROUTINES
:
151 switch (programInterface
) {
152 case GL_VERTEX_SUBROUTINE_UNIFORM
:
153 case GL_FRAGMENT_SUBROUTINE_UNIFORM
:
154 case GL_GEOMETRY_SUBROUTINE_UNIFORM
:
155 case GL_COMPUTE_SUBROUTINE_UNIFORM
:
156 case GL_TESS_CONTROL_SUBROUTINE_UNIFORM
:
157 case GL_TESS_EVALUATION_SUBROUTINE_UNIFORM
: {
158 for (i
= 0, *params
= 0; i
< shProg
->NumProgramResourceList
; i
++) {
159 if (shProg
->ProgramResourceList
[i
].Type
== programInterface
) {
160 struct gl_uniform_storage
*uni
=
161 (struct gl_uniform_storage
*)
162 shProg
->ProgramResourceList
[i
].Data
;
163 *params
= MAX2(*params
, uni
->num_compatible_subroutines
);
170 _mesa_error(ctx
, GL_INVALID_OPERATION
,
171 "glGetProgramInterfaceiv(%s pname %s)",
172 _mesa_enum_to_string(programInterface
),
173 _mesa_enum_to_string(pname
));
177 _mesa_error(ctx
, GL_INVALID_OPERATION
,
178 "glGetProgramInterfaceiv(pname %s)",
179 _mesa_enum_to_string(pname
));
184 is_xfb_marker(const char *str
)
186 static const char *markers
[] = {
188 "gl_SkipComponents1",
189 "gl_SkipComponents2",
190 "gl_SkipComponents3",
191 "gl_SkipComponents4",
194 const char **m
= markers
;
196 if (strncmp(str
, "gl_", 3) != 0)
200 if (strcmp(*m
, str
) == 0)
207 _mesa_GetProgramResourceIndex(GLuint program
, GLenum programInterface
,
210 GET_CURRENT_CONTEXT(ctx
);
211 unsigned array_index
= 0;
212 struct gl_program_resource
*res
;
213 struct gl_shader_program
*shProg
=
214 _mesa_lookup_shader_program_err(ctx
, program
,
215 "glGetProgramResourceIndex");
216 if (!shProg
|| !name
)
217 return GL_INVALID_INDEX
;
219 if (!supported_interface_enum(ctx
, programInterface
)) {
220 _mesa_error(ctx
, GL_INVALID_ENUM
, "glGetProgramResourceIndex(%s)",
221 _mesa_enum_to_string(programInterface
));
222 return GL_INVALID_INDEX
;
225 * For the interface TRANSFORM_FEEDBACK_VARYING, the value INVALID_INDEX
226 * should be returned when querying the index assigned to the special names
227 * "gl_NextBuffer", "gl_SkipComponents1", "gl_SkipComponents2",
228 * "gl_SkipComponents3", and "gl_SkipComponents4".
230 if (programInterface
== GL_TRANSFORM_FEEDBACK_VARYING
&&
232 return GL_INVALID_INDEX
;
234 switch (programInterface
) {
235 case GL_TESS_CONTROL_SUBROUTINE
:
236 case GL_TESS_CONTROL_SUBROUTINE_UNIFORM
:
237 case GL_TESS_EVALUATION_SUBROUTINE
:
238 case GL_TESS_EVALUATION_SUBROUTINE_UNIFORM
:
239 case GL_COMPUTE_SUBROUTINE
:
240 case GL_COMPUTE_SUBROUTINE_UNIFORM
:
241 case GL_GEOMETRY_SUBROUTINE
:
242 case GL_GEOMETRY_SUBROUTINE_UNIFORM
:
243 case GL_VERTEX_SUBROUTINE
:
244 case GL_FRAGMENT_SUBROUTINE
:
245 case GL_VERTEX_SUBROUTINE_UNIFORM
:
246 case GL_FRAGMENT_SUBROUTINE_UNIFORM
:
247 case GL_PROGRAM_INPUT
:
248 case GL_PROGRAM_OUTPUT
:
250 case GL_TRANSFORM_FEEDBACK_VARYING
:
251 case GL_UNIFORM_BLOCK
:
252 res
= _mesa_program_resource_find_name(shProg
, programInterface
, name
,
254 if (!res
|| array_index
> 0)
255 return GL_INVALID_INDEX
;
257 return _mesa_program_resource_index(shProg
, res
);
258 case GL_ATOMIC_COUNTER_BUFFER
:
260 _mesa_error(ctx
, GL_INVALID_ENUM
, "glGetProgramResourceIndex(%s)",
261 _mesa_enum_to_string(programInterface
));
264 return GL_INVALID_INDEX
;
268 _mesa_GetProgramResourceName(GLuint program
, GLenum programInterface
,
269 GLuint index
, GLsizei bufSize
, GLsizei
*length
,
272 GET_CURRENT_CONTEXT(ctx
);
273 struct gl_shader_program
*shProg
=
274 _mesa_lookup_shader_program_err(ctx
, program
,
275 "glGetProgramResourceName");
277 if (!shProg
|| !name
)
280 if (programInterface
== GL_ATOMIC_COUNTER_BUFFER
||
281 !supported_interface_enum(ctx
, programInterface
)) {
282 _mesa_error(ctx
, GL_INVALID_ENUM
, "glGetProgramResourceName(%s)",
283 _mesa_enum_to_string(programInterface
));
287 _mesa_get_program_resource_name(shProg
, programInterface
, index
, bufSize
,
288 length
, name
, "glGetProgramResourceName");
292 _mesa_GetProgramResourceiv(GLuint program
, GLenum programInterface
,
293 GLuint index
, GLsizei propCount
,
294 const GLenum
*props
, GLsizei bufSize
,
295 GLsizei
*length
, GLint
*params
)
297 GET_CURRENT_CONTEXT(ctx
);
298 struct gl_shader_program
*shProg
=
299 _mesa_lookup_shader_program_err(ctx
, program
, "glGetProgramResourceiv");
301 if (!shProg
|| !params
)
304 /* The error INVALID_VALUE is generated if <propCount> is zero.
305 * Note that we check < 0 here because it makes sense to bail early.
307 if (propCount
<= 0) {
308 _mesa_error(ctx
, GL_INVALID_VALUE
,
309 "glGetProgramResourceiv(propCount <= 0)");
313 /* No need to write any properties, user requested none. */
317 _mesa_get_program_resourceiv(shProg
, programInterface
, index
,
318 propCount
, props
, bufSize
, length
, params
);
321 static struct gl_shader_program
*
322 lookup_linked_program(GLuint program
, const char *caller
)
324 GET_CURRENT_CONTEXT(ctx
);
325 struct gl_shader_program
*prog
=
326 _mesa_lookup_shader_program_err(ctx
, program
, caller
);
331 if (prog
->LinkStatus
== GL_FALSE
) {
332 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(program not linked)",
340 _mesa_GetProgramResourceLocation(GLuint program
, GLenum programInterface
,
343 GET_CURRENT_CONTEXT(ctx
);
344 struct gl_shader_program
*shProg
=
345 lookup_linked_program(program
, "glGetProgramResourceLocation");
347 if (!shProg
|| !name
)
350 /* Validate programInterface. */
351 switch (programInterface
) {
353 case GL_PROGRAM_INPUT
:
354 case GL_PROGRAM_OUTPUT
:
357 case GL_VERTEX_SUBROUTINE_UNIFORM
:
358 case GL_FRAGMENT_SUBROUTINE_UNIFORM
:
359 if (!_mesa_has_shader_subroutine(ctx
))
362 case GL_GEOMETRY_SUBROUTINE_UNIFORM
:
363 if (!_mesa_has_geometry_shaders(ctx
) || !_mesa_has_shader_subroutine(ctx
))
366 case GL_COMPUTE_SUBROUTINE_UNIFORM
:
367 if (!_mesa_has_compute_shaders(ctx
) || !_mesa_has_shader_subroutine(ctx
))
370 case GL_TESS_CONTROL_SUBROUTINE_UNIFORM
:
371 case GL_TESS_EVALUATION_SUBROUTINE_UNIFORM
:
372 if (!_mesa_has_tessellation(ctx
) || !_mesa_has_shader_subroutine(ctx
))
379 return _mesa_program_resource_location(shProg
, programInterface
, name
);
381 _mesa_error(ctx
, GL_INVALID_ENUM
, "glGetProgramResourceLocation(%s %s)",
382 _mesa_enum_to_string(programInterface
), name
);
387 * Returns output index for dual source blending.
390 _mesa_GetProgramResourceLocationIndex(GLuint program
, GLenum programInterface
,
393 GET_CURRENT_CONTEXT(ctx
);
394 struct gl_shader_program
*shProg
=
395 lookup_linked_program(program
, "glGetProgramResourceLocationIndex");
397 if (!shProg
|| !name
)
400 /* From the GL_ARB_program_interface_query spec:
402 * "For GetProgramResourceLocationIndex, <programInterface> must be
405 if (programInterface
!= GL_PROGRAM_OUTPUT
) {
406 _mesa_error(ctx
, GL_INVALID_ENUM
,
407 "glGetProgramResourceLocationIndex(%s)",
408 _mesa_enum_to_string(programInterface
));
412 return _mesa_program_resource_location_index(shProg
, GL_PROGRAM_OUTPUT
,