mesa: add fallthrough comments to get.c
[mesa.git] / src / mesa / main / get.c
1 /*
2 * Copyright (C) 2010 Brian Paul All Rights Reserved.
3 * Copyright (C) 2010 Intel Corporation
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice shall be included
13 * in all copies or substantial portions of the Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
16 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
19 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
20 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
21 * OTHER DEALINGS IN THE SOFTWARE.
22 *
23 * Author: Kristian Høgsberg <krh@bitplanet.net>
24 */
25
26 #include "glheader.h"
27 #include "context.h"
28 #include "blend.h"
29 #include "debug_output.h"
30 #include "enable.h"
31 #include "enums.h"
32 #include "errors.h"
33 #include "extensions.h"
34 #include "get.h"
35 #include "macros.h"
36 #include "mtypes.h"
37 #include "spirv_extensions.h"
38 #include "state.h"
39 #include "texcompress.h"
40 #include "texstate.h"
41 #include "framebuffer.h"
42 #include "samplerobj.h"
43 #include "stencil.h"
44 #include "version.h"
45
46 /* This is a table driven implemetation of the glGet*v() functions.
47 * The basic idea is that most getters just look up an int somewhere
48 * in struct gl_context and then convert it to a bool or float according to
49 * which of glGetIntegerv() glGetBooleanv() etc is being called.
50 * Instead of generating code to do this, we can just record the enum
51 * value and the offset into struct gl_context in an array of structs. Then
52 * in glGet*(), we lookup the struct for the enum in question, and use
53 * the offset to get the int we need.
54 *
55 * Sometimes we need to look up a float, a boolean, a bit in a
56 * bitfield, a matrix or other types instead, so we need to track the
57 * type of the value in struct gl_context. And sometimes the value isn't in
58 * struct gl_context but in the drawbuffer, the array object, current texture
59 * unit, or maybe it's a computed value. So we need to also track
60 * where or how to find the value. Finally, we sometimes need to
61 * check that one of a number of extensions are enabled, the GL
62 * version or flush or call _mesa_update_state(). This is done by
63 * attaching optional extra information to the value description
64 * struct, it's sort of like an array of opcodes that describe extra
65 * checks or actions.
66 *
67 * Putting all this together we end up with struct value_desc below,
68 * and with a couple of macros to help, the table of struct value_desc
69 * is about as concise as the specification in the old python script.
70 */
71
72 static inline GLboolean
73 FLOAT_TO_BOOLEAN(GLfloat X)
74 {
75 return ( (X) ? GL_TRUE : GL_FALSE );
76 }
77
78 static inline GLint
79 FLOAT_TO_FIXED(GLfloat F)
80 {
81 return ( ((F) * 65536.0f > INT_MAX) ? INT_MAX :
82 ((F) * 65536.0f < INT_MIN) ? INT_MIN :
83 (GLint) ((F) * 65536.0f) );
84 }
85
86 static inline GLboolean
87 INT_TO_BOOLEAN(GLint I)
88 {
89 return ( (I) ? GL_TRUE : GL_FALSE );
90 }
91
92 static inline GLfixed
93 INT_TO_FIXED(GLint I)
94 {
95 return (((I) > SHRT_MAX) ? INT_MAX :
96 ((I) < SHRT_MIN) ? INT_MIN :
97 (GLint) ((I) * 65536) );
98 }
99
100
101 static inline GLboolean
102 INT64_TO_BOOLEAN(GLint64 I)
103 {
104 return ( (I) ? GL_TRUE : GL_FALSE );
105 }
106
107 static inline GLint
108 INT64_TO_INT(GLint64 I)
109 {
110 return ( (GLint)((I > INT_MAX) ? INT_MAX : ((I < INT_MIN) ? INT_MIN : (I))) );
111 }
112
113 static inline GLint
114 BOOLEAN_TO_INT(GLboolean B)
115 {
116 return ( (GLint) (B) );
117 }
118
119 static inline GLfloat
120 BOOLEAN_TO_FLOAT(GLboolean B)
121 {
122 return ( (B) ? 1.0F : 0.0F );
123 }
124
125 static inline GLfixed
126 BOOLEAN_TO_FIXED(GLboolean B)
127 {
128 return ( (GLint) ((B) ? 1 : 0) << 16 );
129 }
130
131 enum value_type {
132 TYPE_INVALID,
133 TYPE_INT,
134 TYPE_INT_2,
135 TYPE_INT_3,
136 TYPE_INT_4,
137 TYPE_INT_N,
138 TYPE_UINT,
139 TYPE_UINT_2,
140 TYPE_UINT_3,
141 TYPE_UINT_4,
142 TYPE_INT64,
143 TYPE_ENUM16,
144 TYPE_ENUM,
145 TYPE_ENUM_2,
146 TYPE_BOOLEAN,
147 TYPE_UBYTE,
148 TYPE_SHORT,
149 TYPE_BIT_0,
150 TYPE_BIT_1,
151 TYPE_BIT_2,
152 TYPE_BIT_3,
153 TYPE_BIT_4,
154 TYPE_BIT_5,
155 TYPE_BIT_6,
156 TYPE_BIT_7,
157 TYPE_FLOAT,
158 TYPE_FLOAT_2,
159 TYPE_FLOAT_3,
160 TYPE_FLOAT_4,
161 TYPE_FLOAT_8,
162 TYPE_FLOATN,
163 TYPE_FLOATN_2,
164 TYPE_FLOATN_3,
165 TYPE_FLOATN_4,
166 TYPE_DOUBLEN,
167 TYPE_DOUBLEN_2,
168 TYPE_MATRIX,
169 TYPE_MATRIX_T,
170 TYPE_CONST
171 };
172
173 enum value_location {
174 LOC_BUFFER,
175 LOC_CONTEXT,
176 LOC_ARRAY,
177 LOC_TEXUNIT,
178 LOC_CUSTOM
179 };
180
181 enum value_extra {
182 EXTRA_END = 0x8000,
183 EXTRA_VERSION_30,
184 EXTRA_VERSION_31,
185 EXTRA_VERSION_32,
186 EXTRA_VERSION_40,
187 EXTRA_VERSION_43,
188 EXTRA_API_GL,
189 EXTRA_API_GL_CORE,
190 EXTRA_API_ES2,
191 EXTRA_API_ES3,
192 EXTRA_API_ES31,
193 EXTRA_API_ES32,
194 EXTRA_NEW_BUFFERS,
195 EXTRA_VALID_DRAW_BUFFER,
196 EXTRA_VALID_TEXTURE_UNIT,
197 EXTRA_VALID_CLIP_DISTANCE,
198 EXTRA_FLUSH_CURRENT,
199 EXTRA_GLSL_130,
200 EXTRA_EXT_UBO_GS,
201 EXTRA_EXT_ATOMICS_GS,
202 EXTRA_EXT_SHADER_IMAGE_GS,
203 EXTRA_EXT_ATOMICS_TESS,
204 EXTRA_EXT_SHADER_IMAGE_TESS,
205 EXTRA_EXT_SSBO_GS,
206 EXTRA_EXT_FB_NO_ATTACH_GS,
207 EXTRA_EXT_ES_GS,
208 EXTRA_EXT_PROVOKING_VERTEX_32,
209 };
210
211 #define NO_EXTRA NULL
212 #define NO_OFFSET 0
213
214 struct value_desc {
215 GLenum pname;
216 GLubyte location; /**< enum value_location */
217 GLubyte type; /**< enum value_type */
218 int offset;
219 const int *extra;
220 };
221
222 union value {
223 GLfloat value_float;
224 GLfloat value_float_4[4];
225 GLdouble value_double_2[2];
226 GLmatrix *value_matrix;
227 GLint value_int;
228 GLint value_int_4[4];
229 GLint64 value_int64;
230 GLenum value_enum;
231 GLenum16 value_enum16;
232 GLubyte value_ubyte;
233 GLshort value_short;
234 GLuint value_uint;
235
236 /* Sigh, see GL_COMPRESSED_TEXTURE_FORMATS_ARB handling */
237 struct {
238 GLint n, ints[100];
239 } value_int_n;
240 GLboolean value_bool;
241 };
242
243 #define BUFFER_FIELD(field, type) \
244 LOC_BUFFER, type, offsetof(struct gl_framebuffer, field)
245 #define CONTEXT_FIELD(field, type) \
246 LOC_CONTEXT, type, offsetof(struct gl_context, field)
247 #define ARRAY_FIELD(field, type) \
248 LOC_ARRAY, type, offsetof(struct gl_vertex_array_object, field)
249 #undef CONST /* already defined through windows.h */
250 #define CONST(value) \
251 LOC_CONTEXT, TYPE_CONST, value
252
253 #define BUFFER_INT(field) BUFFER_FIELD(field, TYPE_INT)
254 #define BUFFER_ENUM(field) BUFFER_FIELD(field, TYPE_ENUM)
255 #define BUFFER_ENUM16(field) BUFFER_FIELD(field, TYPE_ENUM16)
256 #define BUFFER_BOOL(field) BUFFER_FIELD(field, TYPE_BOOLEAN)
257
258 #define CONTEXT_INT(field) CONTEXT_FIELD(field, TYPE_INT)
259 #define CONTEXT_INT2(field) CONTEXT_FIELD(field, TYPE_INT_2)
260 #define CONTEXT_INT64(field) CONTEXT_FIELD(field, TYPE_INT64)
261 #define CONTEXT_UINT(field) CONTEXT_FIELD(field, TYPE_UINT)
262 #define CONTEXT_ENUM16(field) CONTEXT_FIELD(field, TYPE_ENUM16)
263 #define CONTEXT_ENUM(field) CONTEXT_FIELD(field, TYPE_ENUM)
264 #define CONTEXT_ENUM2(field) CONTEXT_FIELD(field, TYPE_ENUM_2)
265 #define CONTEXT_BOOL(field) CONTEXT_FIELD(field, TYPE_BOOLEAN)
266 #define CONTEXT_BIT0(field) CONTEXT_FIELD(field, TYPE_BIT_0)
267 #define CONTEXT_BIT1(field) CONTEXT_FIELD(field, TYPE_BIT_1)
268 #define CONTEXT_BIT2(field) CONTEXT_FIELD(field, TYPE_BIT_2)
269 #define CONTEXT_BIT3(field) CONTEXT_FIELD(field, TYPE_BIT_3)
270 #define CONTEXT_BIT4(field) CONTEXT_FIELD(field, TYPE_BIT_4)
271 #define CONTEXT_BIT5(field) CONTEXT_FIELD(field, TYPE_BIT_5)
272 #define CONTEXT_BIT6(field) CONTEXT_FIELD(field, TYPE_BIT_6)
273 #define CONTEXT_BIT7(field) CONTEXT_FIELD(field, TYPE_BIT_7)
274 #define CONTEXT_FLOAT(field) CONTEXT_FIELD(field, TYPE_FLOAT)
275 #define CONTEXT_FLOAT2(field) CONTEXT_FIELD(field, TYPE_FLOAT_2)
276 #define CONTEXT_FLOAT3(field) CONTEXT_FIELD(field, TYPE_FLOAT_3)
277 #define CONTEXT_FLOAT4(field) CONTEXT_FIELD(field, TYPE_FLOAT_4)
278 #define CONTEXT_FLOAT8(field) CONTEXT_FIELD(field, TYPE_FLOAT_8)
279 #define CONTEXT_MATRIX(field) CONTEXT_FIELD(field, TYPE_MATRIX)
280 #define CONTEXT_MATRIX_T(field) CONTEXT_FIELD(field, TYPE_MATRIX_T)
281
282 /* Vertex array fields */
283 #define ARRAY_INT(field) ARRAY_FIELD(field, TYPE_INT)
284 #define ARRAY_ENUM(field) ARRAY_FIELD(field, TYPE_ENUM)
285 #define ARRAY_ENUM16(field) ARRAY_FIELD(field, TYPE_ENUM16)
286 #define ARRAY_BOOL(field) ARRAY_FIELD(field, TYPE_BOOLEAN)
287 #define ARRAY_UBYTE(field) ARRAY_FIELD(field, TYPE_UBYTE)
288 #define ARRAY_SHORT(field) ARRAY_FIELD(field, TYPE_SHORT)
289
290 #define EXT(f) \
291 offsetof(struct gl_extensions, f)
292
293 #define EXTRA_EXT(e) \
294 static const int extra_##e[] = { \
295 EXT(e), EXTRA_END \
296 }
297
298 #define EXTRA_EXT2(e1, e2) \
299 static const int extra_##e1##_##e2[] = { \
300 EXT(e1), EXT(e2), EXTRA_END \
301 }
302
303 /* The 'extra' mechanism is a way to specify extra checks (such as
304 * extensions or specific gl versions) or actions (flush current, new
305 * buffers) that we need to do before looking up an enum. We need to
306 * declare them all up front so we can refer to them in the value_desc
307 * structs below.
308 *
309 * Each EXTRA_ will be executed. For EXTRA_* enums of extensions and API
310 * versions, listing multiple ones in an array means an error will be thrown
311 * only if none of them are available. If you need to check for "AND"
312 * behavior, you would need to make a custom EXTRA_ enum.
313 */
314
315 static const int extra_new_buffers[] = {
316 EXTRA_NEW_BUFFERS,
317 EXTRA_END
318 };
319
320 static const int extra_valid_draw_buffer[] = {
321 EXTRA_VALID_DRAW_BUFFER,
322 EXTRA_END
323 };
324
325 static const int extra_valid_texture_unit[] = {
326 EXTRA_VALID_TEXTURE_UNIT,
327 EXTRA_END
328 };
329
330 static const int extra_valid_clip_distance[] = {
331 EXTRA_VALID_CLIP_DISTANCE,
332 EXTRA_END
333 };
334
335 static const int extra_flush_current_valid_texture_unit[] = {
336 EXTRA_FLUSH_CURRENT,
337 EXTRA_VALID_TEXTURE_UNIT,
338 EXTRA_END
339 };
340
341 static const int extra_flush_current[] = {
342 EXTRA_FLUSH_CURRENT,
343 EXTRA_END
344 };
345
346 static const int extra_EXT_texture_integer_and_new_buffers[] = {
347 EXT(EXT_texture_integer),
348 EXTRA_NEW_BUFFERS,
349 EXTRA_END
350 };
351
352 static const int extra_GLSL_130_es3_gpushader4[] = {
353 EXTRA_GLSL_130,
354 EXTRA_API_ES3,
355 EXT(EXT_gpu_shader4),
356 EXTRA_END
357 };
358
359 static const int extra_texture_buffer_object[] = {
360 EXT(ARB_texture_buffer_object),
361 EXTRA_END
362 };
363
364 static const int extra_ARB_transform_feedback2_api_es3[] = {
365 EXT(ARB_transform_feedback2),
366 EXTRA_API_ES3,
367 EXTRA_END
368 };
369
370 static const int extra_ARB_uniform_buffer_object_and_geometry_shader[] = {
371 EXTRA_EXT_UBO_GS,
372 EXTRA_END
373 };
374
375 static const int extra_ARB_ES2_compatibility_api_es2[] = {
376 EXT(ARB_ES2_compatibility),
377 EXTRA_API_ES2,
378 EXTRA_END
379 };
380
381 static const int extra_ARB_ES3_compatibility_api_es3[] = {
382 EXT(ARB_ES3_compatibility),
383 EXTRA_API_ES3,
384 EXTRA_END
385 };
386
387 static const int extra_EXT_framebuffer_sRGB_and_new_buffers[] = {
388 EXT(EXT_framebuffer_sRGB),
389 EXTRA_NEW_BUFFERS,
390 EXTRA_END
391 };
392
393 static const int extra_EXT_packed_float[] = {
394 EXT(EXT_packed_float),
395 EXTRA_NEW_BUFFERS,
396 EXTRA_END
397 };
398
399 static const int extra_EXT_texture_array_es3[] = {
400 EXT(EXT_texture_array),
401 EXTRA_API_ES3,
402 EXTRA_END
403 };
404
405 static const int extra_ARB_shader_atomic_counters_and_geometry_shader[] = {
406 EXTRA_EXT_ATOMICS_GS,
407 EXTRA_END
408 };
409
410 static const int extra_ARB_shader_image_load_store_and_geometry_shader[] = {
411 EXTRA_EXT_SHADER_IMAGE_GS,
412 EXTRA_END
413 };
414
415 static const int extra_ARB_shader_atomic_counters_and_tessellation[] = {
416 EXTRA_EXT_ATOMICS_TESS,
417 EXTRA_END
418 };
419
420 static const int extra_ARB_shader_image_load_store_and_tessellation[] = {
421 EXTRA_EXT_SHADER_IMAGE_TESS,
422 EXTRA_END
423 };
424
425 /* HACK: remove when ARB_compute_shader is actually supported */
426 static const int extra_ARB_compute_shader_es31[] = {
427 EXT(ARB_compute_shader),
428 EXTRA_API_ES31,
429 EXTRA_END
430 };
431
432 static const int extra_ARB_shader_storage_buffer_object_es31[] = {
433 EXT(ARB_shader_storage_buffer_object),
434 EXTRA_API_ES31,
435 EXTRA_END
436 };
437
438 static const int extra_ARB_shader_storage_buffer_object_and_geometry_shader[] = {
439 EXTRA_EXT_SSBO_GS,
440 EXTRA_END
441 };
442
443 static const int extra_ARB_shader_image_load_store_shader_storage_buffer_object_es31[] = {
444 EXT(ARB_shader_image_load_store),
445 EXT(ARB_shader_storage_buffer_object),
446 EXTRA_API_ES31,
447 EXTRA_END
448 };
449
450 static const int extra_ARB_framebuffer_no_attachments_and_geometry_shader[] = {
451 EXTRA_EXT_FB_NO_ATTACH_GS,
452 EXTRA_END
453 };
454
455 static const int extra_ARB_viewport_array_or_oes_geometry_shader[] = {
456 EXT(ARB_viewport_array),
457 EXTRA_EXT_ES_GS,
458 EXTRA_END
459 };
460
461 static const int extra_ARB_viewport_array_or_oes_viewport_array[] = {
462 EXT(ARB_viewport_array),
463 EXT(OES_viewport_array),
464 EXTRA_END
465 };
466
467 static const int extra_ARB_gpu_shader5_or_oes_geometry_shader[] = {
468 EXT(ARB_gpu_shader5),
469 EXTRA_EXT_ES_GS,
470 EXTRA_END
471 };
472
473 static const int extra_ARB_gpu_shader5_or_OES_sample_variables[] = {
474 EXT(ARB_gpu_shader5),
475 EXT(OES_sample_variables),
476 EXTRA_END
477 };
478
479 static const int extra_ES32[] = {
480 EXT(ARB_ES3_2_compatibility),
481 EXTRA_API_ES32,
482 EXTRA_END
483 };
484
485 static const int extra_KHR_robustness_or_GL[] = {
486 EXT(KHR_robustness),
487 EXTRA_API_GL,
488 EXTRA_API_GL_CORE,
489 EXTRA_END
490 };
491
492 static const int extra_INTEL_conservative_rasterization[] = {
493 EXT(INTEL_conservative_rasterization),
494 EXTRA_END
495 };
496
497 EXTRA_EXT(ARB_texture_cube_map);
498 EXTRA_EXT(EXT_texture_array);
499 EXTRA_EXT(NV_fog_distance);
500 EXTRA_EXT(EXT_texture_filter_anisotropic);
501 EXTRA_EXT(NV_point_sprite);
502 EXTRA_EXT(NV_texture_rectangle);
503 EXTRA_EXT(EXT_stencil_two_side);
504 EXTRA_EXT(EXT_depth_bounds_test);
505 EXTRA_EXT(ARB_depth_clamp);
506 EXTRA_EXT(AMD_depth_clamp_separate);
507 EXTRA_EXT(ATI_fragment_shader);
508 EXTRA_EXT(EXT_provoking_vertex);
509 EXTRA_EXT(ARB_fragment_shader);
510 EXTRA_EXT(ARB_fragment_program);
511 EXTRA_EXT2(ARB_framebuffer_object, EXT_framebuffer_multisample);
512 EXTRA_EXT(ARB_seamless_cube_map);
513 EXTRA_EXT(ARB_sync);
514 EXTRA_EXT(ARB_vertex_shader);
515 EXTRA_EXT(EXT_transform_feedback);
516 EXTRA_EXT(ARB_transform_feedback3);
517 EXTRA_EXT(EXT_pixel_buffer_object);
518 EXTRA_EXT(ARB_vertex_program);
519 EXTRA_EXT2(NV_point_sprite, ARB_point_sprite);
520 EXTRA_EXT2(ARB_vertex_program, ARB_fragment_program);
521 EXTRA_EXT(ARB_color_buffer_float);
522 EXTRA_EXT(EXT_framebuffer_sRGB);
523 EXTRA_EXT(OES_EGL_image_external);
524 EXTRA_EXT(ARB_blend_func_extended);
525 EXTRA_EXT(ARB_uniform_buffer_object);
526 EXTRA_EXT(ARB_timer_query);
527 EXTRA_EXT2(ARB_texture_cube_map_array, OES_texture_cube_map_array);
528 EXTRA_EXT(ARB_texture_buffer_range);
529 EXTRA_EXT(ARB_texture_multisample);
530 EXTRA_EXT(ARB_texture_gather);
531 EXTRA_EXT(ARB_shader_atomic_counters);
532 EXTRA_EXT(ARB_draw_indirect);
533 EXTRA_EXT(ARB_shader_image_load_store);
534 EXTRA_EXT(ARB_query_buffer_object);
535 EXTRA_EXT2(ARB_transform_feedback3, ARB_gpu_shader5);
536 EXTRA_EXT(INTEL_performance_query);
537 EXTRA_EXT(ARB_explicit_uniform_location);
538 EXTRA_EXT(ARB_clip_control);
539 EXTRA_EXT(ARB_polygon_offset_clamp);
540 EXTRA_EXT(ARB_framebuffer_no_attachments);
541 EXTRA_EXT(ARB_tessellation_shader);
542 EXTRA_EXT(ARB_shader_storage_buffer_object);
543 EXTRA_EXT(ARB_indirect_parameters);
544 EXTRA_EXT(ATI_meminfo);
545 EXTRA_EXT(NVX_gpu_memory_info);
546 EXTRA_EXT(ARB_cull_distance);
547 EXTRA_EXT(EXT_window_rectangles);
548 EXTRA_EXT(KHR_blend_equation_advanced_coherent);
549 EXTRA_EXT(OES_primitive_bounding_box);
550 EXTRA_EXT(ARB_compute_variable_group_size);
551 EXTRA_EXT(KHR_robustness);
552 EXTRA_EXT(ARB_sparse_buffer);
553 EXTRA_EXT(NV_conservative_raster);
554 EXTRA_EXT(NV_conservative_raster_dilate);
555 EXTRA_EXT(NV_conservative_raster_pre_snap_triangles);
556 EXTRA_EXT(ARB_sample_locations);
557 EXTRA_EXT(AMD_framebuffer_multisample_advanced);
558 EXTRA_EXT(ARB_spirv_extensions);
559 EXTRA_EXT(NV_viewport_swizzle);
560
561 static const int
562 extra_ARB_color_buffer_float_or_glcore[] = {
563 EXT(ARB_color_buffer_float),
564 EXTRA_API_GL_CORE,
565 EXTRA_END
566 };
567
568 static const int
569 extra_NV_primitive_restart[] = {
570 EXT(NV_primitive_restart),
571 EXTRA_END
572 };
573
574 static const int extra_version_30[] = { EXTRA_VERSION_30, EXTRA_END };
575 static const int extra_version_31[] = { EXTRA_VERSION_31, EXTRA_END };
576 static const int extra_version_32[] = { EXTRA_VERSION_32, EXTRA_END };
577 static const int extra_version_43[] = { EXTRA_VERSION_43, EXTRA_END };
578
579 static const int extra_gl30_es3[] = {
580 EXTRA_VERSION_30,
581 EXTRA_API_ES3,
582 EXTRA_END,
583 };
584
585 static const int extra_gl32_es3[] = {
586 EXTRA_VERSION_32,
587 EXTRA_API_ES3,
588 EXTRA_END,
589 };
590
591 static const int extra_version_32_OES_geometry_shader[] = {
592 EXTRA_VERSION_32,
593 EXTRA_EXT_ES_GS,
594 EXTRA_END
595 };
596
597 static const int extra_gl40_ARB_sample_shading[] = {
598 EXTRA_VERSION_40,
599 EXT(ARB_sample_shading),
600 EXTRA_END
601 };
602
603 static const int
604 extra_ARB_vertex_program_api_es2[] = {
605 EXT(ARB_vertex_program),
606 EXTRA_API_ES2,
607 EXTRA_END
608 };
609
610 /* The ReadBuffer get token is valid under either full GL or under
611 * GLES2 if the NV_read_buffer extension is available. */
612 static const int
613 extra_NV_read_buffer_api_gl[] = {
614 EXTRA_API_ES2,
615 EXTRA_API_GL,
616 EXTRA_END
617 };
618
619 static const int extra_core_ARB_color_buffer_float_and_new_buffers[] = {
620 EXTRA_API_GL_CORE,
621 EXT(ARB_color_buffer_float),
622 EXTRA_NEW_BUFFERS,
623 EXTRA_END
624 };
625
626 static const int extra_EXT_shader_framebuffer_fetch[] = {
627 EXTRA_API_ES2,
628 EXTRA_API_ES3,
629 EXT(EXT_shader_framebuffer_fetch),
630 EXTRA_END
631 };
632
633 static const int extra_EXT_provoking_vertex_32[] = {
634 EXTRA_EXT_PROVOKING_VERTEX_32,
635 EXTRA_END
636 };
637
638 static const int extra_EXT_disjoint_timer_query[] = {
639 EXTRA_API_ES2,
640 EXTRA_API_ES3,
641 EXT(EXT_disjoint_timer_query),
642 EXTRA_END
643 };
644
645
646 /* This is the big table describing all the enums we accept in
647 * glGet*v(). The table is partitioned into six parts: enums
648 * understood by all GL APIs (OpenGL, GLES and GLES2), enums shared
649 * between OpenGL and GLES, enums exclusive to GLES, etc for the
650 * remaining combinations. To look up the enums valid in a given API
651 * we will use a hash table specific to that API. These tables are in
652 * turn generated at build time and included through get_hash.h.
653 */
654
655 #include "get_hash.h"
656
657 /* All we need now is a way to look up the value struct from the enum.
658 * The code generated by gcc for the old generated big switch
659 * statement is a big, balanced, open coded if/else tree, essentially
660 * an unrolled binary search. It would be natural to sort the new
661 * enum table and use bsearch(), but we will use a read-only hash
662 * table instead. bsearch() has a nice guaranteed worst case
663 * performance, but we're also guaranteed to hit that worst case
664 * (log2(n) iterations) for about half the enums. Instead, using an
665 * open addressing hash table, we can find the enum on the first try
666 * for 80% of the enums, 1 collision for 10% and never more than 5
667 * collisions for any enum (typical numbers). And the code is very
668 * simple, even though it feels a little magic. */
669
670 /**
671 * Handle irregular enums
672 *
673 * Some values don't conform to the "well-known type at context
674 * pointer + offset" pattern, so we have this function to catch all
675 * the corner cases. Typically, it's a computed value or a one-off
676 * pointer to a custom struct or something.
677 *
678 * In this case we can't return a pointer to the value, so we'll have
679 * to use the temporary variable 'v' declared back in the calling
680 * glGet*v() function to store the result.
681 *
682 * \param ctx the current context
683 * \param d the struct value_desc that describes the enum
684 * \param v pointer to the tmp declared in the calling glGet*v() function
685 */
686 static void
687 find_custom_value(struct gl_context *ctx, const struct value_desc *d, union value *v)
688 {
689 struct gl_buffer_object **buffer_obj, *buf;
690 struct gl_array_attributes *array;
691 GLuint unit, *p;
692
693 switch (d->pname) {
694 case GL_MAJOR_VERSION:
695 v->value_int = ctx->Version / 10;
696 break;
697 case GL_MINOR_VERSION:
698 v->value_int = ctx->Version % 10;
699 break;
700
701 case GL_TEXTURE_1D:
702 case GL_TEXTURE_2D:
703 case GL_TEXTURE_3D:
704 case GL_TEXTURE_CUBE_MAP:
705 case GL_TEXTURE_RECTANGLE_NV:
706 case GL_TEXTURE_EXTERNAL_OES:
707 v->value_bool = _mesa_IsEnabled(d->pname);
708 break;
709
710 case GL_LINE_STIPPLE_PATTERN:
711 /* This is the only GLushort, special case it here by promoting
712 * to an int rather than introducing a new type. */
713 v->value_int = ctx->Line.StipplePattern;
714 break;
715
716 case GL_CURRENT_RASTER_TEXTURE_COORDS:
717 unit = ctx->Texture.CurrentUnit;
718 v->value_float_4[0] = ctx->Current.RasterTexCoords[unit][0];
719 v->value_float_4[1] = ctx->Current.RasterTexCoords[unit][1];
720 v->value_float_4[2] = ctx->Current.RasterTexCoords[unit][2];
721 v->value_float_4[3] = ctx->Current.RasterTexCoords[unit][3];
722 break;
723
724 case GL_CURRENT_TEXTURE_COORDS:
725 unit = ctx->Texture.CurrentUnit;
726 v->value_float_4[0] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][0];
727 v->value_float_4[1] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][1];
728 v->value_float_4[2] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][2];
729 v->value_float_4[3] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][3];
730 break;
731
732 case GL_COLOR_WRITEMASK:
733 v->value_int_4[0] = GET_COLORMASK_BIT(ctx->Color.ColorMask, 0, 0);
734 v->value_int_4[1] = GET_COLORMASK_BIT(ctx->Color.ColorMask, 0, 1);
735 v->value_int_4[2] = GET_COLORMASK_BIT(ctx->Color.ColorMask, 0, 2);
736 v->value_int_4[3] = GET_COLORMASK_BIT(ctx->Color.ColorMask, 0, 3);
737 break;
738
739 case GL_DEPTH_CLAMP:
740 v->value_bool = ctx->Transform.DepthClampNear || ctx->Transform.DepthClampFar;
741 break;
742
743 case GL_EDGE_FLAG:
744 v->value_bool = ctx->Current.Attrib[VERT_ATTRIB_EDGEFLAG][0] == 1.0F;
745 break;
746
747 case GL_READ_BUFFER:
748 v->value_enum16 = ctx->ReadBuffer->ColorReadBuffer;
749 break;
750
751 case GL_MAP2_GRID_DOMAIN:
752 v->value_float_4[0] = ctx->Eval.MapGrid2u1;
753 v->value_float_4[1] = ctx->Eval.MapGrid2u2;
754 v->value_float_4[2] = ctx->Eval.MapGrid2v1;
755 v->value_float_4[3] = ctx->Eval.MapGrid2v2;
756 break;
757
758 case GL_TEXTURE_STACK_DEPTH:
759 unit = ctx->Texture.CurrentUnit;
760 v->value_int = ctx->TextureMatrixStack[unit].Depth + 1;
761 break;
762 case GL_TEXTURE_MATRIX:
763 unit = ctx->Texture.CurrentUnit;
764 v->value_matrix = ctx->TextureMatrixStack[unit].Top;
765 break;
766
767 case GL_VERTEX_ARRAY:
768 v->value_bool = !!(ctx->Array.VAO->Enabled & VERT_BIT_POS);
769 break;
770 case GL_NORMAL_ARRAY:
771 v->value_bool = !!(ctx->Array.VAO->Enabled & VERT_BIT_NORMAL);
772 break;
773 case GL_COLOR_ARRAY:
774 v->value_bool = !!(ctx->Array.VAO->Enabled & VERT_BIT_COLOR0);
775 break;
776 case GL_TEXTURE_COORD_ARRAY:
777 v->value_bool = !!(ctx->Array.VAO->Enabled & VERT_BIT_TEX(ctx->Array.ActiveTexture));
778 break;
779 case GL_INDEX_ARRAY:
780 v->value_bool = !!(ctx->Array.VAO->Enabled & VERT_BIT_COLOR_INDEX);
781 break;
782 case GL_EDGE_FLAG_ARRAY:
783 v->value_bool = !!(ctx->Array.VAO->Enabled & VERT_BIT_EDGEFLAG);
784 break;
785 case GL_SECONDARY_COLOR_ARRAY:
786 v->value_bool = !!(ctx->Array.VAO->Enabled & VERT_BIT_COLOR1);
787 break;
788 case GL_FOG_COORDINATE_ARRAY:
789 v->value_bool = !!(ctx->Array.VAO->Enabled & VERT_BIT_FOG);
790 break;
791 case GL_POINT_SIZE_ARRAY_OES:
792 v->value_bool = !!(ctx->Array.VAO->Enabled & VERT_BIT_POINT_SIZE);
793 break;
794
795 case GL_TEXTURE_COORD_ARRAY_TYPE:
796 case GL_TEXTURE_COORD_ARRAY_STRIDE:
797 array = &ctx->Array.VAO->VertexAttrib[VERT_ATTRIB_TEX(ctx->Array.ActiveTexture)];
798 v->value_int = *(GLuint *) ((char *) array + d->offset);
799 break;
800
801 case GL_TEXTURE_COORD_ARRAY_SIZE:
802 array = &ctx->Array.VAO->VertexAttrib[VERT_ATTRIB_TEX(ctx->Array.ActiveTexture)];
803 v->value_int = array->Format.Size;
804 break;
805
806 case GL_VERTEX_ARRAY_SIZE:
807 array = &ctx->Array.VAO->VertexAttrib[VERT_ATTRIB_POS];
808 v->value_int = array->Format.Size;
809 break;
810
811 case GL_ACTIVE_TEXTURE_ARB:
812 v->value_int = GL_TEXTURE0_ARB + ctx->Texture.CurrentUnit;
813 break;
814 case GL_CLIENT_ACTIVE_TEXTURE_ARB:
815 v->value_int = GL_TEXTURE0_ARB + ctx->Array.ActiveTexture;
816 break;
817
818 case GL_MODELVIEW_STACK_DEPTH:
819 case GL_PROJECTION_STACK_DEPTH:
820 v->value_int = *(GLint *) ((char *) ctx + d->offset) + 1;
821 break;
822
823 case GL_MAX_TEXTURE_SIZE:
824 case GL_MAX_3D_TEXTURE_SIZE:
825 case GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB:
826 p = (GLuint *) ((char *) ctx + d->offset);
827 v->value_int = 1 << (*p - 1);
828 break;
829
830 case GL_SCISSOR_BOX:
831 v->value_int_4[0] = ctx->Scissor.ScissorArray[0].X;
832 v->value_int_4[1] = ctx->Scissor.ScissorArray[0].Y;
833 v->value_int_4[2] = ctx->Scissor.ScissorArray[0].Width;
834 v->value_int_4[3] = ctx->Scissor.ScissorArray[0].Height;
835 break;
836
837 case GL_SCISSOR_TEST:
838 v->value_bool = ctx->Scissor.EnableFlags & 1;
839 break;
840
841 case GL_LIST_INDEX:
842 v->value_int =
843 ctx->ListState.CurrentList ? ctx->ListState.CurrentList->Name : 0;
844 break;
845 case GL_LIST_MODE:
846 if (!ctx->CompileFlag)
847 v->value_enum16 = 0;
848 else if (ctx->ExecuteFlag)
849 v->value_enum16 = GL_COMPILE_AND_EXECUTE;
850 else
851 v->value_enum16 = GL_COMPILE;
852 break;
853
854 case GL_VIEWPORT:
855 v->value_float_4[0] = ctx->ViewportArray[0].X;
856 v->value_float_4[1] = ctx->ViewportArray[0].Y;
857 v->value_float_4[2] = ctx->ViewportArray[0].Width;
858 v->value_float_4[3] = ctx->ViewportArray[0].Height;
859 break;
860
861 case GL_DEPTH_RANGE:
862 v->value_double_2[0] = ctx->ViewportArray[0].Near;
863 v->value_double_2[1] = ctx->ViewportArray[0].Far;
864 break;
865
866 case GL_ACTIVE_STENCIL_FACE_EXT:
867 v->value_enum16 = ctx->Stencil.ActiveFace ? GL_BACK : GL_FRONT;
868 break;
869
870 case GL_STENCIL_FAIL:
871 v->value_enum16 = ctx->Stencil.FailFunc[ctx->Stencil.ActiveFace];
872 break;
873 case GL_STENCIL_FUNC:
874 v->value_enum16 = ctx->Stencil.Function[ctx->Stencil.ActiveFace];
875 break;
876 case GL_STENCIL_PASS_DEPTH_FAIL:
877 v->value_enum16 = ctx->Stencil.ZFailFunc[ctx->Stencil.ActiveFace];
878 break;
879 case GL_STENCIL_PASS_DEPTH_PASS:
880 v->value_enum16 = ctx->Stencil.ZPassFunc[ctx->Stencil.ActiveFace];
881 break;
882 case GL_STENCIL_REF:
883 v->value_int = _mesa_get_stencil_ref(ctx, ctx->Stencil.ActiveFace);
884 break;
885 case GL_STENCIL_BACK_REF:
886 v->value_int = _mesa_get_stencil_ref(ctx, 1);
887 break;
888 case GL_STENCIL_VALUE_MASK:
889 v->value_int = ctx->Stencil.ValueMask[ctx->Stencil.ActiveFace];
890 break;
891 case GL_STENCIL_WRITEMASK:
892 v->value_int = ctx->Stencil.WriteMask[ctx->Stencil.ActiveFace];
893 break;
894
895 case GL_NUM_EXTENSIONS:
896 v->value_int = _mesa_get_extension_count(ctx);
897 break;
898
899 case GL_IMPLEMENTATION_COLOR_READ_TYPE_OES:
900 v->value_int = _mesa_get_color_read_type(ctx, NULL, "glGetIntegerv");
901 break;
902 case GL_IMPLEMENTATION_COLOR_READ_FORMAT_OES:
903 v->value_int = _mesa_get_color_read_format(ctx, NULL, "glGetIntegerv");
904 break;
905
906 case GL_CURRENT_MATRIX_STACK_DEPTH_ARB:
907 v->value_int = ctx->CurrentStack->Depth + 1;
908 break;
909 case GL_CURRENT_MATRIX_ARB:
910 case GL_TRANSPOSE_CURRENT_MATRIX_ARB:
911 v->value_matrix = ctx->CurrentStack->Top;
912 break;
913
914 case GL_NUM_COMPRESSED_TEXTURE_FORMATS_ARB:
915 v->value_int = _mesa_get_compressed_formats(ctx, NULL);
916 break;
917 case GL_COMPRESSED_TEXTURE_FORMATS_ARB:
918 v->value_int_n.n =
919 _mesa_get_compressed_formats(ctx, v->value_int_n.ints);
920 assert(v->value_int_n.n <= (int) ARRAY_SIZE(v->value_int_n.ints));
921 break;
922
923 case GL_MAX_VARYING_FLOATS_ARB:
924 v->value_int = ctx->Const.MaxVarying * 4;
925 break;
926
927 /* Various object names */
928
929 case GL_TEXTURE_BINDING_1D:
930 case GL_TEXTURE_BINDING_2D:
931 case GL_TEXTURE_BINDING_3D:
932 case GL_TEXTURE_BINDING_1D_ARRAY_EXT:
933 case GL_TEXTURE_BINDING_2D_ARRAY_EXT:
934 case GL_TEXTURE_BINDING_CUBE_MAP_ARB:
935 case GL_TEXTURE_BINDING_RECTANGLE_NV:
936 case GL_TEXTURE_BINDING_EXTERNAL_OES:
937 case GL_TEXTURE_BINDING_CUBE_MAP_ARRAY:
938 case GL_TEXTURE_BINDING_2D_MULTISAMPLE:
939 case GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY:
940 unit = ctx->Texture.CurrentUnit;
941 v->value_int =
942 ctx->Texture.Unit[unit].CurrentTex[d->offset]->Name;
943 break;
944
945 /* GL_EXT_external_objects */
946 case GL_NUM_DEVICE_UUIDS_EXT:
947 v->value_int = 1;
948 break;
949 case GL_DRIVER_UUID_EXT:
950 _mesa_get_driver_uuid(ctx, v->value_int_4);
951 break;
952 case GL_DEVICE_UUID_EXT:
953 _mesa_get_device_uuid(ctx, v->value_int_4);
954 break;
955
956 /* GL_EXT_packed_float */
957 case GL_RGBA_SIGNED_COMPONENTS_EXT:
958 {
959 /* Note: we only check the 0th color attachment. */
960 const struct gl_renderbuffer *rb =
961 ctx->DrawBuffer->_ColorDrawBuffers[0];
962 if (rb && _mesa_is_format_signed(rb->Format)) {
963 /* Issue 17 of GL_EXT_packed_float: If a component (such as
964 * alpha) has zero bits, the component should not be considered
965 * signed and so the bit for the respective component should be
966 * zeroed.
967 */
968 GLint r_bits =
969 _mesa_get_format_bits(rb->Format, GL_RED_BITS);
970 GLint g_bits =
971 _mesa_get_format_bits(rb->Format, GL_GREEN_BITS);
972 GLint b_bits =
973 _mesa_get_format_bits(rb->Format, GL_BLUE_BITS);
974 GLint a_bits =
975 _mesa_get_format_bits(rb->Format, GL_ALPHA_BITS);
976 GLint l_bits =
977 _mesa_get_format_bits(rb->Format, GL_TEXTURE_LUMINANCE_SIZE);
978 GLint i_bits =
979 _mesa_get_format_bits(rb->Format, GL_TEXTURE_INTENSITY_SIZE);
980
981 v->value_int_4[0] = r_bits + l_bits + i_bits > 0;
982 v->value_int_4[1] = g_bits + l_bits + i_bits > 0;
983 v->value_int_4[2] = b_bits + l_bits + i_bits > 0;
984 v->value_int_4[3] = a_bits + i_bits > 0;
985 }
986 else {
987 v->value_int_4[0] =
988 v->value_int_4[1] =
989 v->value_int_4[2] =
990 v->value_int_4[3] = 0;
991 }
992 }
993 break;
994
995 /* GL_ARB_vertex_buffer_object */
996 case GL_VERTEX_ARRAY_BUFFER_BINDING_ARB:
997 case GL_NORMAL_ARRAY_BUFFER_BINDING_ARB:
998 case GL_COLOR_ARRAY_BUFFER_BINDING_ARB:
999 case GL_INDEX_ARRAY_BUFFER_BINDING_ARB:
1000 case GL_EDGE_FLAG_ARRAY_BUFFER_BINDING_ARB:
1001 case GL_SECONDARY_COLOR_ARRAY_BUFFER_BINDING_ARB:
1002 case GL_FOG_COORDINATE_ARRAY_BUFFER_BINDING_ARB:
1003 buffer_obj = (struct gl_buffer_object **)
1004 ((char *) ctx->Array.VAO + d->offset);
1005 v->value_int = (*buffer_obj) ? (*buffer_obj)->Name : 0;
1006 break;
1007 case GL_ARRAY_BUFFER_BINDING_ARB:
1008 buf = ctx->Array.ArrayBufferObj;
1009 v->value_int = buf ? buf->Name : 0;
1010 break;
1011 case GL_TEXTURE_COORD_ARRAY_BUFFER_BINDING_ARB:
1012 buf = ctx->Array.VAO->BufferBinding[VERT_ATTRIB_TEX(ctx->Array.ActiveTexture)].BufferObj;
1013 v->value_int = buf ? buf->Name : 0;
1014 break;
1015 case GL_ELEMENT_ARRAY_BUFFER_BINDING_ARB:
1016 buf = ctx->Array.VAO->IndexBufferObj;
1017 v->value_int = buf ? buf->Name : 0;
1018 break;
1019
1020 /* ARB_vertex_array_bgra */
1021 case GL_COLOR_ARRAY_SIZE:
1022 array = &ctx->Array.VAO->VertexAttrib[VERT_ATTRIB_COLOR0];
1023 v->value_int = array->Format.Format == GL_BGRA ? GL_BGRA : array->Format.Size;
1024 break;
1025 case GL_SECONDARY_COLOR_ARRAY_SIZE:
1026 array = &ctx->Array.VAO->VertexAttrib[VERT_ATTRIB_COLOR1];
1027 v->value_int = array->Format.Format == GL_BGRA ? GL_BGRA : array->Format.Size;
1028 break;
1029
1030 /* ARB_copy_buffer */
1031 case GL_COPY_READ_BUFFER:
1032 v->value_int = ctx->CopyReadBuffer ? ctx->CopyReadBuffer->Name : 0;
1033 break;
1034 case GL_COPY_WRITE_BUFFER:
1035 v->value_int = ctx->CopyWriteBuffer ? ctx->CopyWriteBuffer->Name : 0;
1036 break;
1037
1038 case GL_PIXEL_PACK_BUFFER_BINDING_EXT:
1039 v->value_int = ctx->Pack.BufferObj ? ctx->Pack.BufferObj->Name : 0;
1040 break;
1041 case GL_PIXEL_UNPACK_BUFFER_BINDING_EXT:
1042 v->value_int = ctx->Unpack.BufferObj ? ctx->Unpack.BufferObj->Name : 0;
1043 break;
1044 case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING:
1045 v->value_int = ctx->TransformFeedback.CurrentBuffer ?
1046 ctx->TransformFeedback.CurrentBuffer->Name : 0;
1047 break;
1048 case GL_TRANSFORM_FEEDBACK_BUFFER_PAUSED:
1049 v->value_int = ctx->TransformFeedback.CurrentObject->Paused;
1050 break;
1051 case GL_TRANSFORM_FEEDBACK_BUFFER_ACTIVE:
1052 v->value_int = ctx->TransformFeedback.CurrentObject->Active;
1053 break;
1054 case GL_TRANSFORM_FEEDBACK_BINDING:
1055 v->value_int = ctx->TransformFeedback.CurrentObject->Name;
1056 break;
1057 case GL_CURRENT_PROGRAM:
1058 /* The Changelog of the ARB_separate_shader_objects spec says:
1059 *
1060 * 24 25 Jul 2011 pbrown Remove the language erroneously deleting
1061 * CURRENT_PROGRAM. In the EXT extension, this
1062 * token was aliased to ACTIVE_PROGRAM_EXT, and
1063 * was used to indicate the last program set by
1064 * either ActiveProgramEXT or UseProgram. In
1065 * the ARB extension, the SSO active programs
1066 * are now program pipeline object state and
1067 * CURRENT_PROGRAM should still be used to query
1068 * the last program set by UseProgram (bug 7822).
1069 */
1070 v->value_int =
1071 ctx->Shader.ActiveProgram ? ctx->Shader.ActiveProgram->Name : 0;
1072 break;
1073 case GL_READ_FRAMEBUFFER_BINDING_EXT:
1074 v->value_int = ctx->ReadBuffer->Name;
1075 break;
1076 case GL_RENDERBUFFER_BINDING_EXT:
1077 v->value_int =
1078 ctx->CurrentRenderbuffer ? ctx->CurrentRenderbuffer->Name : 0;
1079 break;
1080 case GL_POINT_SIZE_ARRAY_BUFFER_BINDING_OES:
1081 buf = ctx->Array.VAO->BufferBinding[VERT_ATTRIB_POINT_SIZE].BufferObj;
1082 v->value_int = buf ? buf->Name : 0;
1083 break;
1084
1085 case GL_FOG_COLOR:
1086 if (_mesa_get_clamp_fragment_color(ctx, ctx->DrawBuffer))
1087 COPY_4FV(v->value_float_4, ctx->Fog.Color);
1088 else
1089 COPY_4FV(v->value_float_4, ctx->Fog.ColorUnclamped);
1090 break;
1091 case GL_COLOR_CLEAR_VALUE:
1092 if (_mesa_get_clamp_fragment_color(ctx, ctx->DrawBuffer)) {
1093 v->value_float_4[0] = CLAMP(ctx->Color.ClearColor.f[0], 0.0F, 1.0F);
1094 v->value_float_4[1] = CLAMP(ctx->Color.ClearColor.f[1], 0.0F, 1.0F);
1095 v->value_float_4[2] = CLAMP(ctx->Color.ClearColor.f[2], 0.0F, 1.0F);
1096 v->value_float_4[3] = CLAMP(ctx->Color.ClearColor.f[3], 0.0F, 1.0F);
1097 } else
1098 COPY_4FV(v->value_float_4, ctx->Color.ClearColor.f);
1099 break;
1100 case GL_BLEND_COLOR_EXT:
1101 if (_mesa_get_clamp_fragment_color(ctx, ctx->DrawBuffer))
1102 COPY_4FV(v->value_float_4, ctx->Color.BlendColor);
1103 else
1104 COPY_4FV(v->value_float_4, ctx->Color.BlendColorUnclamped);
1105 break;
1106 case GL_ALPHA_TEST_REF:
1107 if (_mesa_get_clamp_fragment_color(ctx, ctx->DrawBuffer))
1108 v->value_float = ctx->Color.AlphaRef;
1109 else
1110 v->value_float = ctx->Color.AlphaRefUnclamped;
1111 break;
1112 case GL_MAX_VERTEX_UNIFORM_VECTORS:
1113 v->value_int = ctx->Const.Program[MESA_SHADER_VERTEX].MaxUniformComponents / 4;
1114 break;
1115
1116 case GL_MAX_FRAGMENT_UNIFORM_VECTORS:
1117 v->value_int = ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxUniformComponents / 4;
1118 break;
1119
1120 /* GL_ARB_texture_buffer_object */
1121 case GL_TEXTURE_BUFFER_ARB:
1122 v->value_int = ctx->Texture.BufferObject ? ctx->Texture.BufferObject->Name : 0;
1123 break;
1124 case GL_TEXTURE_BINDING_BUFFER_ARB:
1125 unit = ctx->Texture.CurrentUnit;
1126 v->value_int =
1127 ctx->Texture.Unit[unit].CurrentTex[TEXTURE_BUFFER_INDEX]->Name;
1128 break;
1129 case GL_TEXTURE_BUFFER_DATA_STORE_BINDING_ARB:
1130 {
1131 struct gl_buffer_object *buf =
1132 ctx->Texture.Unit[ctx->Texture.CurrentUnit]
1133 .CurrentTex[TEXTURE_BUFFER_INDEX]->BufferObject;
1134 v->value_int = buf ? buf->Name : 0;
1135 }
1136 break;
1137 case GL_TEXTURE_BUFFER_FORMAT_ARB:
1138 v->value_int = ctx->Texture.Unit[ctx->Texture.CurrentUnit]
1139 .CurrentTex[TEXTURE_BUFFER_INDEX]->BufferObjectFormat;
1140 break;
1141
1142 /* GL_ARB_sampler_objects */
1143 case GL_SAMPLER_BINDING:
1144 {
1145 struct gl_sampler_object *samp =
1146 ctx->Texture.Unit[ctx->Texture.CurrentUnit].Sampler;
1147 v->value_int = samp ? samp->Name : 0;
1148 }
1149 break;
1150 /* GL_ARB_uniform_buffer_object */
1151 case GL_UNIFORM_BUFFER_BINDING:
1152 v->value_int = ctx->UniformBuffer ? ctx->UniformBuffer->Name : 0;
1153 break;
1154 /* GL_ARB_shader_storage_buffer_object */
1155 case GL_SHADER_STORAGE_BUFFER_BINDING:
1156 v->value_int = ctx->ShaderStorageBuffer ? ctx->ShaderStorageBuffer->Name : 0;
1157 break;
1158 /* GL_ARB_query_buffer_object */
1159 case GL_QUERY_BUFFER_BINDING:
1160 v->value_int = ctx->QueryBuffer ? ctx->QueryBuffer->Name : 0;
1161 break;
1162 /* GL_ARB_timer_query */
1163 case GL_TIMESTAMP:
1164 if (ctx->Driver.GetTimestamp) {
1165 v->value_int64 = ctx->Driver.GetTimestamp(ctx);
1166 }
1167 else {
1168 _mesa_problem(ctx, "driver doesn't implement GetTimestamp");
1169 }
1170 break;
1171 /* GL_KHR_DEBUG */
1172 case GL_DEBUG_OUTPUT:
1173 case GL_DEBUG_OUTPUT_SYNCHRONOUS:
1174 case GL_DEBUG_LOGGED_MESSAGES:
1175 case GL_DEBUG_NEXT_LOGGED_MESSAGE_LENGTH:
1176 case GL_DEBUG_GROUP_STACK_DEPTH:
1177 v->value_int = _mesa_get_debug_state_int(ctx, d->pname);
1178 break;
1179 /* GL_ARB_shader_atomic_counters */
1180 case GL_ATOMIC_COUNTER_BUFFER_BINDING:
1181 v->value_int = ctx->AtomicBuffer ? ctx->AtomicBuffer->Name : 0;
1182 break;
1183 /* GL 4.3 */
1184 case GL_NUM_SHADING_LANGUAGE_VERSIONS:
1185 v->value_int = _mesa_get_shading_language_version(ctx, -1, NULL);
1186 break;
1187 /* GL_ARB_draw_indirect */
1188 case GL_DRAW_INDIRECT_BUFFER_BINDING:
1189 v->value_int = ctx->DrawIndirectBuffer ? ctx->DrawIndirectBuffer->Name: 0;
1190 break;
1191 /* GL_ARB_indirect_parameters */
1192 case GL_PARAMETER_BUFFER_BINDING_ARB:
1193 v->value_int = ctx->ParameterBuffer ? ctx->ParameterBuffer->Name : 0;
1194 break;
1195 /* GL_ARB_separate_shader_objects */
1196 case GL_PROGRAM_PIPELINE_BINDING:
1197 if (ctx->Pipeline.Current) {
1198 v->value_int = ctx->Pipeline.Current->Name;
1199 } else {
1200 v->value_int = 0;
1201 }
1202 break;
1203 /* GL_ARB_compute_shader */
1204 case GL_DISPATCH_INDIRECT_BUFFER_BINDING:
1205 v->value_int = ctx->DispatchIndirectBuffer ?
1206 ctx->DispatchIndirectBuffer->Name : 0;
1207 break;
1208 /* GL_ARB_multisample */
1209 case GL_SAMPLES:
1210 v->value_int = _mesa_geometric_samples(ctx->DrawBuffer);
1211 break;
1212 case GL_SAMPLE_BUFFERS:
1213 v->value_int = _mesa_geometric_samples(ctx->DrawBuffer) > 0;
1214 break;
1215 /* GL_EXT_textrue_integer */
1216 case GL_RGBA_INTEGER_MODE_EXT:
1217 v->value_int = (ctx->DrawBuffer->_IntegerBuffers != 0);
1218 break;
1219 /* GL_ATI_meminfo & GL_NVX_gpu_memory_info */
1220 case GL_VBO_FREE_MEMORY_ATI:
1221 case GL_TEXTURE_FREE_MEMORY_ATI:
1222 case GL_RENDERBUFFER_FREE_MEMORY_ATI:
1223 case GL_GPU_MEMORY_INFO_DEDICATED_VIDMEM_NVX:
1224 case GL_GPU_MEMORY_INFO_TOTAL_AVAILABLE_MEMORY_NVX:
1225 case GL_GPU_MEMORY_INFO_CURRENT_AVAILABLE_VIDMEM_NVX:
1226 case GL_GPU_MEMORY_INFO_EVICTION_COUNT_NVX:
1227 case GL_GPU_MEMORY_INFO_EVICTED_MEMORY_NVX:
1228 {
1229 struct gl_memory_info info;
1230
1231 ctx->Driver.QueryMemoryInfo(ctx, &info);
1232
1233 if (d->pname == GL_GPU_MEMORY_INFO_DEDICATED_VIDMEM_NVX)
1234 v->value_int = info.total_device_memory;
1235 else if (d->pname == GL_GPU_MEMORY_INFO_TOTAL_AVAILABLE_MEMORY_NVX)
1236 v->value_int = info.total_device_memory +
1237 info.total_staging_memory;
1238 else if (d->pname == GL_GPU_MEMORY_INFO_CURRENT_AVAILABLE_VIDMEM_NVX)
1239 v->value_int = info.avail_device_memory;
1240 else if (d->pname == GL_GPU_MEMORY_INFO_EVICTION_COUNT_NVX)
1241 v->value_int = info.nr_device_memory_evictions;
1242 else if (d->pname == GL_GPU_MEMORY_INFO_EVICTED_MEMORY_NVX)
1243 v->value_int = info.device_memory_evicted;
1244 else {
1245 /* ATI free memory enums.
1246 *
1247 * Since the GPU memory is (usually) page-table based, every two
1248 * consecutive elements are equal. From the GL_ATI_meminfo
1249 * specification:
1250 *
1251 * "param[0] - total memory free in the pool
1252 * param[1] - largest available free block in the pool
1253 * param[2] - total auxiliary memory free
1254 * param[3] - largest auxiliary free block"
1255 *
1256 * All three (VBO, TEXTURE, RENDERBUFFER) queries return
1257 * the same numbers here.
1258 */
1259 v->value_int_4[0] = info.avail_device_memory;
1260 v->value_int_4[1] = info.avail_device_memory;
1261 v->value_int_4[2] = info.avail_staging_memory;
1262 v->value_int_4[3] = info.avail_staging_memory;
1263 }
1264 }
1265 break;
1266
1267 /* GL_ARB_get_program_binary */
1268 case GL_PROGRAM_BINARY_FORMATS:
1269 assert(ctx->Const.NumProgramBinaryFormats <= 1);
1270 v->value_int_n.n = MIN2(ctx->Const.NumProgramBinaryFormats, 1);
1271 if (ctx->Const.NumProgramBinaryFormats > 0) {
1272 v->value_int_n.ints[0] = GL_PROGRAM_BINARY_FORMAT_MESA;
1273 }
1274 break;
1275 /* ARB_spirv_extensions */
1276 case GL_NUM_SPIR_V_EXTENSIONS:
1277 v->value_int = _mesa_get_spirv_extension_count(ctx);
1278 break;
1279 /* GL_EXT_disjoint_timer_query */
1280 case GL_GPU_DISJOINT_EXT:
1281 {
1282 simple_mtx_lock(&ctx->Shared->Mutex);
1283 v->value_int = ctx->Shared->DisjointOperation;
1284 /* Reset state as expected by the spec. */
1285 ctx->Shared->DisjointOperation = false;
1286 simple_mtx_unlock(&ctx->Shared->Mutex);
1287 }
1288 break;
1289 /* GL_ARB_sample_locations */
1290 case GL_SAMPLE_LOCATION_SUBPIXEL_BITS_ARB:
1291 case GL_SAMPLE_LOCATION_PIXEL_GRID_WIDTH_ARB:
1292 case GL_SAMPLE_LOCATION_PIXEL_GRID_HEIGHT_ARB:
1293 {
1294 GLuint bits, width, height;
1295
1296 if (ctx->NewState & _NEW_BUFFERS)
1297 _mesa_update_state(ctx);
1298
1299 if (ctx->DrawBuffer->_Status != GL_FRAMEBUFFER_COMPLETE) {
1300 v->value_uint = 0;
1301 break;
1302 }
1303
1304 ctx->Driver.GetProgrammableSampleCaps(ctx, ctx->DrawBuffer,
1305 &bits, &width, &height);
1306
1307 if (d->pname == GL_SAMPLE_LOCATION_PIXEL_GRID_WIDTH_ARB)
1308 v->value_uint = width;
1309 else if (d->pname == GL_SAMPLE_LOCATION_PIXEL_GRID_HEIGHT_ARB)
1310 v->value_uint = height;
1311 else
1312 v->value_uint = bits;
1313 }
1314 break;
1315 case GL_PROGRAMMABLE_SAMPLE_LOCATION_TABLE_SIZE_ARB:
1316 v->value_uint = MAX_SAMPLE_LOCATION_TABLE_SIZE;
1317 break;
1318
1319 /* GL_AMD_framebuffer_multisample_advanced */
1320 case GL_SUPPORTED_MULTISAMPLE_MODES_AMD:
1321 v->value_int_n.n = ctx->Const.NumSupportedMultisampleModes * 3;
1322 memcpy(v->value_int_n.ints, ctx->Const.SupportedMultisampleModes,
1323 v->value_int_n.n * sizeof(GLint));
1324 break;
1325
1326 /* GL_NV_viewport_swizzle */
1327 case GL_VIEWPORT_SWIZZLE_X_NV:
1328 v->value_enum = ctx->ViewportArray[0].SwizzleX;
1329 break;
1330 case GL_VIEWPORT_SWIZZLE_Y_NV:
1331 v->value_enum = ctx->ViewportArray[0].SwizzleY;
1332 break;
1333 case GL_VIEWPORT_SWIZZLE_Z_NV:
1334 v->value_enum = ctx->ViewportArray[0].SwizzleZ;
1335 break;
1336 case GL_VIEWPORT_SWIZZLE_W_NV:
1337 v->value_enum = ctx->ViewportArray[0].SwizzleW;
1338 break;
1339 }
1340 }
1341
1342 /**
1343 * Check extra constraints on a struct value_desc descriptor
1344 *
1345 * If a struct value_desc has a non-NULL extra pointer, it means that
1346 * there are a number of extra constraints to check or actions to
1347 * perform. The extras is just an integer array where each integer
1348 * encode different constraints or actions.
1349 *
1350 * \param ctx current context
1351 * \param func name of calling glGet*v() function for error reporting
1352 * \param d the struct value_desc that has the extra constraints
1353 *
1354 * \return GL_FALSE if all of the constraints were not satisfied,
1355 * otherwise GL_TRUE.
1356 */
1357 static GLboolean
1358 check_extra(struct gl_context *ctx, const char *func, const struct value_desc *d)
1359 {
1360 const GLuint version = ctx->Version;
1361 GLboolean api_check = GL_FALSE;
1362 GLboolean api_found = GL_FALSE;
1363 const int *e;
1364
1365 for (e = d->extra; *e != EXTRA_END; e++) {
1366 switch (*e) {
1367 case EXTRA_VERSION_30:
1368 api_check = GL_TRUE;
1369 if (version >= 30)
1370 api_found = GL_TRUE;
1371 break;
1372 case EXTRA_VERSION_31:
1373 api_check = GL_TRUE;
1374 if (version >= 31)
1375 api_found = GL_TRUE;
1376 break;
1377 case EXTRA_VERSION_32:
1378 api_check = GL_TRUE;
1379 if (version >= 32)
1380 api_found = GL_TRUE;
1381 break;
1382 case EXTRA_VERSION_40:
1383 api_check = GL_TRUE;
1384 if (version >= 40)
1385 api_found = GL_TRUE;
1386 break;
1387 case EXTRA_VERSION_43:
1388 api_check = GL_TRUE;
1389 if (_mesa_is_desktop_gl(ctx) && version >= 43)
1390 api_found = GL_TRUE;
1391 break;
1392 case EXTRA_API_ES2:
1393 api_check = GL_TRUE;
1394 if (ctx->API == API_OPENGLES2)
1395 api_found = GL_TRUE;
1396 break;
1397 case EXTRA_API_ES3:
1398 api_check = GL_TRUE;
1399 if (_mesa_is_gles3(ctx))
1400 api_found = GL_TRUE;
1401 break;
1402 case EXTRA_API_ES31:
1403 api_check = GL_TRUE;
1404 if (_mesa_is_gles31(ctx))
1405 api_found = GL_TRUE;
1406 break;
1407 case EXTRA_API_ES32:
1408 api_check = GL_TRUE;
1409 if (_mesa_is_gles32(ctx))
1410 api_found = GL_TRUE;
1411 break;
1412 case EXTRA_API_GL:
1413 api_check = GL_TRUE;
1414 if (_mesa_is_desktop_gl(ctx))
1415 api_found = GL_TRUE;
1416 break;
1417 case EXTRA_API_GL_CORE:
1418 api_check = GL_TRUE;
1419 if (ctx->API == API_OPENGL_CORE)
1420 api_found = GL_TRUE;
1421 break;
1422 case EXTRA_NEW_BUFFERS:
1423 if (ctx->NewState & _NEW_BUFFERS)
1424 _mesa_update_state(ctx);
1425 break;
1426 case EXTRA_FLUSH_CURRENT:
1427 FLUSH_CURRENT(ctx, 0);
1428 break;
1429 case EXTRA_VALID_DRAW_BUFFER:
1430 if (d->pname - GL_DRAW_BUFFER0_ARB >= ctx->Const.MaxDrawBuffers) {
1431 _mesa_error(ctx, GL_INVALID_OPERATION, "%s(draw buffer %u)",
1432 func, d->pname - GL_DRAW_BUFFER0_ARB);
1433 return GL_FALSE;
1434 }
1435 break;
1436 case EXTRA_VALID_TEXTURE_UNIT:
1437 if (ctx->Texture.CurrentUnit >= ctx->Const.MaxTextureCoordUnits) {
1438 _mesa_error(ctx, GL_INVALID_OPERATION, "%s(texture %u)",
1439 func, ctx->Texture.CurrentUnit);
1440 return GL_FALSE;
1441 }
1442 break;
1443 case EXTRA_VALID_CLIP_DISTANCE:
1444 if (d->pname - GL_CLIP_DISTANCE0 >= ctx->Const.MaxClipPlanes) {
1445 _mesa_error(ctx, GL_INVALID_ENUM, "%s(clip distance %u)",
1446 func, d->pname - GL_CLIP_DISTANCE0);
1447 return GL_FALSE;
1448 }
1449 break;
1450 case EXTRA_GLSL_130:
1451 api_check = GL_TRUE;
1452 if (ctx->Const.GLSLVersion >= 130)
1453 api_found = GL_TRUE;
1454 break;
1455 case EXTRA_EXT_UBO_GS:
1456 api_check = GL_TRUE;
1457 if (ctx->Extensions.ARB_uniform_buffer_object &&
1458 _mesa_has_geometry_shaders(ctx))
1459 api_found = GL_TRUE;
1460 break;
1461 case EXTRA_EXT_ATOMICS_GS:
1462 api_check = GL_TRUE;
1463 if (ctx->Extensions.ARB_shader_atomic_counters &&
1464 _mesa_has_geometry_shaders(ctx))
1465 api_found = GL_TRUE;
1466 break;
1467 case EXTRA_EXT_SHADER_IMAGE_GS:
1468 api_check = GL_TRUE;
1469 if (ctx->Extensions.ARB_shader_image_load_store &&
1470 _mesa_has_geometry_shaders(ctx))
1471 api_found = GL_TRUE;
1472 break;
1473 case EXTRA_EXT_ATOMICS_TESS:
1474 api_check = GL_TRUE;
1475 api_found = ctx->Extensions.ARB_shader_atomic_counters &&
1476 _mesa_has_tessellation(ctx);
1477 break;
1478 case EXTRA_EXT_SHADER_IMAGE_TESS:
1479 api_check = GL_TRUE;
1480 api_found = ctx->Extensions.ARB_shader_image_load_store &&
1481 _mesa_has_tessellation(ctx);
1482 break;
1483 case EXTRA_EXT_SSBO_GS:
1484 api_check = GL_TRUE;
1485 if (ctx->Extensions.ARB_shader_storage_buffer_object &&
1486 _mesa_has_geometry_shaders(ctx))
1487 api_found = GL_TRUE;
1488 break;
1489 case EXTRA_EXT_FB_NO_ATTACH_GS:
1490 api_check = GL_TRUE;
1491 if (ctx->Extensions.ARB_framebuffer_no_attachments &&
1492 (_mesa_is_desktop_gl(ctx) ||
1493 _mesa_has_OES_geometry_shader(ctx)))
1494 api_found = GL_TRUE;
1495 break;
1496 case EXTRA_EXT_ES_GS:
1497 api_check = GL_TRUE;
1498 if (_mesa_has_OES_geometry_shader(ctx))
1499 api_found = GL_TRUE;
1500 break;
1501 case EXTRA_EXT_PROVOKING_VERTEX_32:
1502 api_check = GL_TRUE;
1503 if (ctx->API == API_OPENGL_COMPAT || version == 32)
1504 api_found = ctx->Extensions.EXT_provoking_vertex;
1505 break;
1506 case EXTRA_END:
1507 break;
1508 default: /* *e is a offset into the extension struct */
1509 api_check = GL_TRUE;
1510 if (*(GLboolean *) ((char *) &ctx->Extensions + *e))
1511 api_found = GL_TRUE;
1512 break;
1513 }
1514 }
1515
1516 if (api_check && !api_found) {
1517 _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func,
1518 _mesa_enum_to_string(d->pname));
1519 return GL_FALSE;
1520 }
1521
1522 return GL_TRUE;
1523 }
1524
1525 static const struct value_desc error_value =
1526 { 0, 0, TYPE_INVALID, NO_OFFSET, NO_EXTRA };
1527
1528 /**
1529 * Find the struct value_desc corresponding to the enum 'pname'.
1530 *
1531 * We hash the enum value to get an index into the 'table' array,
1532 * which holds the index in the 'values' array of struct value_desc.
1533 * Once we've found the entry, we do the extra checks, if any, then
1534 * look up the value and return a pointer to it.
1535 *
1536 * If the value has to be computed (for example, it's the result of a
1537 * function call or we need to add 1 to it), we use the tmp 'v' to
1538 * store the result.
1539 *
1540 * \param func name of glGet*v() func for error reporting
1541 * \param pname the enum value we're looking up
1542 * \param p is were we return the pointer to the value
1543 * \param v a tmp union value variable in the calling glGet*v() function
1544 *
1545 * \return the struct value_desc corresponding to the enum or a struct
1546 * value_desc of TYPE_INVALID if not found. This lets the calling
1547 * glGet*v() function jump right into a switch statement and
1548 * handle errors there instead of having to check for NULL.
1549 */
1550 static const struct value_desc *
1551 find_value(const char *func, GLenum pname, void **p, union value *v)
1552 {
1553 GET_CURRENT_CONTEXT(ctx);
1554 int mask, hash;
1555 const struct value_desc *d;
1556 int api;
1557
1558 *p = NULL;
1559
1560 api = ctx->API;
1561 /* We index into the table_set[] list of per-API hash tables using the API's
1562 * value in the gl_api enum. Since GLES 3 doesn't have an API_OPENGL* enum
1563 * value since it's compatible with GLES2 its entry in table_set[] is at the
1564 * end.
1565 */
1566 STATIC_ASSERT(ARRAY_SIZE(table_set) == API_OPENGL_LAST + 4);
1567 if (ctx->API == API_OPENGLES2) {
1568 if (ctx->Version >= 32)
1569 api = API_OPENGL_LAST + 3;
1570 else if (ctx->Version >= 31)
1571 api = API_OPENGL_LAST + 2;
1572 else if (ctx->Version >= 30)
1573 api = API_OPENGL_LAST + 1;
1574 }
1575 mask = ARRAY_SIZE(table(api)) - 1;
1576 hash = (pname * prime_factor);
1577 while (1) {
1578 int idx = table(api)[hash & mask];
1579
1580 /* If the enum isn't valid, the hash walk ends with index 0,
1581 * pointing to the first entry of values[] which doesn't hold
1582 * any valid enum. */
1583 if (unlikely(idx == 0)) {
1584 _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func,
1585 _mesa_enum_to_string(pname));
1586 return &error_value;
1587 }
1588
1589 d = &values[idx];
1590 if (likely(d->pname == pname))
1591 break;
1592
1593 hash += prime_step;
1594 }
1595
1596 if (unlikely(d->extra && !check_extra(ctx, func, d)))
1597 return &error_value;
1598
1599 switch (d->location) {
1600 case LOC_BUFFER:
1601 *p = ((char *) ctx->DrawBuffer + d->offset);
1602 return d;
1603 case LOC_CONTEXT:
1604 *p = ((char *) ctx + d->offset);
1605 return d;
1606 case LOC_ARRAY:
1607 *p = ((char *) ctx->Array.VAO + d->offset);
1608 return d;
1609 case LOC_TEXUNIT:
1610 if (ctx->Texture.CurrentUnit < ARRAY_SIZE(ctx->Texture.FixedFuncUnit)) {
1611 unsigned index = ctx->Texture.CurrentUnit;
1612 *p = ((char *)&ctx->Texture.FixedFuncUnit[index] + d->offset);
1613 return d;
1614 }
1615 _mesa_error(ctx, GL_INVALID_VALUE, "%s(pname=%s,unit=%d)", func,
1616 _mesa_enum_to_string(pname),
1617 ctx->Texture.CurrentUnit);
1618 return &error_value;
1619 case LOC_CUSTOM:
1620 find_custom_value(ctx, d, v);
1621 *p = v;
1622 return d;
1623 default:
1624 assert(0);
1625 break;
1626 }
1627
1628 /* silence warning */
1629 return &error_value;
1630 }
1631
1632 static const int transpose[] = {
1633 0, 4, 8, 12,
1634 1, 5, 9, 13,
1635 2, 6, 10, 14,
1636 3, 7, 11, 15
1637 };
1638
1639 static GLsizei
1640 get_value_size(enum value_type type, const union value *v)
1641 {
1642 switch (type) {
1643 case TYPE_INVALID:
1644 return 0;
1645 case TYPE_CONST:
1646 case TYPE_UINT:
1647 case TYPE_INT:
1648 return sizeof(GLint);
1649 case TYPE_INT_2:
1650 case TYPE_UINT_2:
1651 return sizeof(GLint) * 2;
1652 case TYPE_INT_3:
1653 case TYPE_UINT_3:
1654 return sizeof(GLint) * 3;
1655 case TYPE_INT_4:
1656 case TYPE_UINT_4:
1657 return sizeof(GLint) * 4;
1658 case TYPE_INT_N:
1659 return sizeof(GLint) * v->value_int_n.n;
1660 case TYPE_INT64:
1661 return sizeof(GLint64);
1662 break;
1663 case TYPE_ENUM16:
1664 return sizeof(GLenum16);
1665 case TYPE_ENUM:
1666 return sizeof(GLenum);
1667 case TYPE_ENUM_2:
1668 return sizeof(GLenum) * 2;
1669 case TYPE_BOOLEAN:
1670 return sizeof(GLboolean);
1671 case TYPE_UBYTE:
1672 return sizeof(GLubyte);
1673 case TYPE_SHORT:
1674 return sizeof(GLshort);
1675 case TYPE_BIT_0:
1676 case TYPE_BIT_1:
1677 case TYPE_BIT_2:
1678 case TYPE_BIT_3:
1679 case TYPE_BIT_4:
1680 case TYPE_BIT_5:
1681 case TYPE_BIT_6:
1682 case TYPE_BIT_7:
1683 return 1;
1684 case TYPE_FLOAT:
1685 case TYPE_FLOATN:
1686 return sizeof(GLfloat);
1687 case TYPE_FLOAT_2:
1688 case TYPE_FLOATN_2:
1689 return sizeof(GLfloat) * 2;
1690 case TYPE_FLOAT_3:
1691 case TYPE_FLOATN_3:
1692 return sizeof(GLfloat) * 3;
1693 case TYPE_FLOAT_4:
1694 case TYPE_FLOATN_4:
1695 return sizeof(GLfloat) * 4;
1696 case TYPE_FLOAT_8:
1697 return sizeof(GLfloat) * 8;
1698 case TYPE_DOUBLEN:
1699 return sizeof(GLdouble);
1700 case TYPE_DOUBLEN_2:
1701 return sizeof(GLdouble) * 2;
1702 case TYPE_MATRIX:
1703 return sizeof (GLfloat) * 16;
1704 case TYPE_MATRIX_T:
1705 return sizeof (GLfloat) * 16;
1706 default:
1707 return -1;
1708 }
1709 }
1710
1711 void GLAPIENTRY
1712 _mesa_GetBooleanv(GLenum pname, GLboolean *params)
1713 {
1714 const struct value_desc *d;
1715 union value v;
1716 GLmatrix *m;
1717 int shift, i;
1718 void *p;
1719
1720 d = find_value("glGetBooleanv", pname, &p, &v);
1721 switch (d->type) {
1722 case TYPE_INVALID:
1723 break;
1724 case TYPE_CONST:
1725 params[0] = INT_TO_BOOLEAN(d->offset);
1726 break;
1727
1728 case TYPE_FLOAT_8:
1729 params[7] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[7]);
1730 params[6] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[6]);
1731 params[5] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[5]);
1732 params[4] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[4]);
1733 /* fallthrough */
1734 case TYPE_FLOAT_4:
1735 case TYPE_FLOATN_4:
1736 params[3] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[3]);
1737 /* fallthrough */
1738 case TYPE_FLOAT_3:
1739 case TYPE_FLOATN_3:
1740 params[2] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[2]);
1741 /* fallthrough */
1742 case TYPE_FLOAT_2:
1743 case TYPE_FLOATN_2:
1744 params[1] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[1]);
1745 /* fallthrough */
1746 case TYPE_FLOAT:
1747 case TYPE_FLOATN:
1748 params[0] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[0]);
1749 break;
1750
1751 case TYPE_DOUBLEN_2:
1752 params[1] = FLOAT_TO_BOOLEAN(((GLdouble *) p)[1]);
1753 /* fallthrough */
1754 case TYPE_DOUBLEN:
1755 params[0] = FLOAT_TO_BOOLEAN(((GLdouble *) p)[0]);
1756 break;
1757
1758 case TYPE_INT_4:
1759 case TYPE_UINT_4:
1760 params[3] = INT_TO_BOOLEAN(((GLint *) p)[3]);
1761 /* fallthrough */
1762 case TYPE_INT_3:
1763 case TYPE_UINT_3:
1764 params[2] = INT_TO_BOOLEAN(((GLint *) p)[2]);
1765 /* fallthrough */
1766 case TYPE_INT_2:
1767 case TYPE_UINT_2:
1768 case TYPE_ENUM_2:
1769 params[1] = INT_TO_BOOLEAN(((GLint *) p)[1]);
1770 /* fallthrough */
1771 case TYPE_INT:
1772 case TYPE_UINT:
1773 case TYPE_ENUM:
1774 params[0] = INT_TO_BOOLEAN(((GLint *) p)[0]);
1775 break;
1776
1777 case TYPE_ENUM16:
1778 params[0] = INT_TO_BOOLEAN(((GLenum16 *) p)[0]);
1779 break;
1780
1781 case TYPE_INT_N:
1782 for (i = 0; i < v.value_int_n.n; i++)
1783 params[i] = INT_TO_BOOLEAN(v.value_int_n.ints[i]);
1784 break;
1785
1786 case TYPE_INT64:
1787 params[0] = INT64_TO_BOOLEAN(((GLint64 *) p)[0]);
1788 break;
1789
1790 case TYPE_BOOLEAN:
1791 params[0] = ((GLboolean*) p)[0];
1792 break;
1793
1794 case TYPE_UBYTE:
1795 params[0] = INT_TO_BOOLEAN(((GLubyte *) p)[0]);
1796 break;
1797
1798 case TYPE_SHORT:
1799 params[0] = INT_TO_BOOLEAN(((GLshort *) p)[0]);
1800 break;
1801
1802 case TYPE_MATRIX:
1803 m = *(GLmatrix **) p;
1804 for (i = 0; i < 16; i++)
1805 params[i] = FLOAT_TO_BOOLEAN(m->m[i]);
1806 break;
1807
1808 case TYPE_MATRIX_T:
1809 m = *(GLmatrix **) p;
1810 for (i = 0; i < 16; i++)
1811 params[i] = FLOAT_TO_BOOLEAN(m->m[transpose[i]]);
1812 break;
1813
1814 case TYPE_BIT_0:
1815 case TYPE_BIT_1:
1816 case TYPE_BIT_2:
1817 case TYPE_BIT_3:
1818 case TYPE_BIT_4:
1819 case TYPE_BIT_5:
1820 case TYPE_BIT_6:
1821 case TYPE_BIT_7:
1822 shift = d->type - TYPE_BIT_0;
1823 params[0] = (*(GLbitfield *) p >> shift) & 1;
1824 break;
1825 }
1826 }
1827
1828 void GLAPIENTRY
1829 _mesa_GetFloatv(GLenum pname, GLfloat *params)
1830 {
1831 const struct value_desc *d;
1832 union value v;
1833 GLmatrix *m;
1834 int shift, i;
1835 void *p;
1836
1837 d = find_value("glGetFloatv", pname, &p, &v);
1838 switch (d->type) {
1839 case TYPE_INVALID:
1840 break;
1841 case TYPE_CONST:
1842 params[0] = (GLfloat) d->offset;
1843 break;
1844
1845 case TYPE_FLOAT_8:
1846 params[7] = ((GLfloat *) p)[7];
1847 params[6] = ((GLfloat *) p)[6];
1848 params[5] = ((GLfloat *) p)[5];
1849 params[4] = ((GLfloat *) p)[4];
1850 /* fallthrough */
1851 case TYPE_FLOAT_4:
1852 case TYPE_FLOATN_4:
1853 params[3] = ((GLfloat *) p)[3];
1854 /* fallthrough */
1855 case TYPE_FLOAT_3:
1856 case TYPE_FLOATN_3:
1857 params[2] = ((GLfloat *) p)[2];
1858 /* fallthrough */
1859 case TYPE_FLOAT_2:
1860 case TYPE_FLOATN_2:
1861 params[1] = ((GLfloat *) p)[1];
1862 /* fallthrough */
1863 case TYPE_FLOAT:
1864 case TYPE_FLOATN:
1865 params[0] = ((GLfloat *) p)[0];
1866 break;
1867
1868 case TYPE_DOUBLEN_2:
1869 params[1] = (GLfloat) (((GLdouble *) p)[1]);
1870 /* fallthrough */
1871 case TYPE_DOUBLEN:
1872 params[0] = (GLfloat) (((GLdouble *) p)[0]);
1873 break;
1874
1875 case TYPE_INT_4:
1876 params[3] = (GLfloat) (((GLint *) p)[3]);
1877 /* fallthrough */
1878 case TYPE_INT_3:
1879 params[2] = (GLfloat) (((GLint *) p)[2]);
1880 /* fallthrough */
1881 case TYPE_INT_2:
1882 case TYPE_ENUM_2:
1883 params[1] = (GLfloat) (((GLint *) p)[1]);
1884 /* fallthrough */
1885 case TYPE_INT:
1886 case TYPE_ENUM:
1887 params[0] = (GLfloat) (((GLint *) p)[0]);
1888 break;
1889
1890 case TYPE_ENUM16:
1891 params[0] = (GLfloat) (((GLenum16 *) p)[0]);
1892 break;
1893
1894 case TYPE_INT_N:
1895 for (i = 0; i < v.value_int_n.n; i++)
1896 params[i] = (GLfloat) v.value_int_n.ints[i];
1897 break;
1898
1899 case TYPE_UINT_4:
1900 params[3] = (GLfloat) (((GLuint *) p)[3]);
1901 /* fallthrough */
1902 case TYPE_UINT_3:
1903 params[2] = (GLfloat) (((GLuint *) p)[2]);
1904 /* fallthrough */
1905 case TYPE_UINT_2:
1906 params[1] = (GLfloat) (((GLuint *) p)[1]);
1907 /* fallthrough */
1908 case TYPE_UINT:
1909 params[0] = (GLfloat) (((GLuint *) p)[0]);
1910 break;
1911
1912 case TYPE_INT64:
1913 params[0] = (GLfloat) (((GLint64 *) p)[0]);
1914 break;
1915
1916 case TYPE_BOOLEAN:
1917 params[0] = BOOLEAN_TO_FLOAT(*(GLboolean*) p);
1918 break;
1919
1920 case TYPE_UBYTE:
1921 params[0] = (GLfloat) ((GLubyte *) p)[0];
1922 break;
1923
1924 case TYPE_SHORT:
1925 params[0] = (GLfloat) ((GLshort *) p)[0];
1926 break;
1927
1928 case TYPE_MATRIX:
1929 m = *(GLmatrix **) p;
1930 for (i = 0; i < 16; i++)
1931 params[i] = m->m[i];
1932 break;
1933
1934 case TYPE_MATRIX_T:
1935 m = *(GLmatrix **) p;
1936 for (i = 0; i < 16; i++)
1937 params[i] = m->m[transpose[i]];
1938 break;
1939
1940 case TYPE_BIT_0:
1941 case TYPE_BIT_1:
1942 case TYPE_BIT_2:
1943 case TYPE_BIT_3:
1944 case TYPE_BIT_4:
1945 case TYPE_BIT_5:
1946 case TYPE_BIT_6:
1947 case TYPE_BIT_7:
1948 shift = d->type - TYPE_BIT_0;
1949 params[0] = BOOLEAN_TO_FLOAT((*(GLbitfield *) p >> shift) & 1);
1950 break;
1951 }
1952 }
1953
1954 void GLAPIENTRY
1955 _mesa_GetIntegerv(GLenum pname, GLint *params)
1956 {
1957 const struct value_desc *d;
1958 union value v;
1959 GLmatrix *m;
1960 int shift, i;
1961 void *p;
1962
1963 d = find_value("glGetIntegerv", pname, &p, &v);
1964 switch (d->type) {
1965 case TYPE_INVALID:
1966 break;
1967 case TYPE_CONST:
1968 params[0] = d->offset;
1969 break;
1970
1971 case TYPE_FLOAT_8:
1972 params[7] = lroundf(((GLfloat *) p)[7]);
1973 params[6] = lroundf(((GLfloat *) p)[6]);
1974 params[5] = lroundf(((GLfloat *) p)[5]);
1975 params[4] = lroundf(((GLfloat *) p)[4]);
1976 /* fallthrough */
1977 case TYPE_FLOAT_4:
1978 params[3] = lroundf(((GLfloat *) p)[3]);
1979 /* fallthrough */
1980 case TYPE_FLOAT_3:
1981 params[2] = lroundf(((GLfloat *) p)[2]);
1982 /* fallthrough */
1983 case TYPE_FLOAT_2:
1984 params[1] = lroundf(((GLfloat *) p)[1]);
1985 /* fallthrough */
1986 case TYPE_FLOAT:
1987 params[0] = lroundf(((GLfloat *) p)[0]);
1988 break;
1989
1990 case TYPE_FLOATN_4:
1991 params[3] = FLOAT_TO_INT(((GLfloat *) p)[3]);
1992 /* fallthrough */
1993 case TYPE_FLOATN_3:
1994 params[2] = FLOAT_TO_INT(((GLfloat *) p)[2]);
1995 /* fallthrough */
1996 case TYPE_FLOATN_2:
1997 params[1] = FLOAT_TO_INT(((GLfloat *) p)[1]);
1998 /* fallthrough */
1999 case TYPE_FLOATN:
2000 params[0] = FLOAT_TO_INT(((GLfloat *) p)[0]);
2001 break;
2002
2003 case TYPE_DOUBLEN_2:
2004 params[1] = FLOAT_TO_INT(((GLdouble *) p)[1]);
2005 /* fallthrough */
2006 case TYPE_DOUBLEN:
2007 params[0] = FLOAT_TO_INT(((GLdouble *) p)[0]);
2008 break;
2009
2010 case TYPE_INT_4:
2011 case TYPE_UINT_4:
2012 params[3] = ((GLint *) p)[3];
2013 /* fallthrough */
2014 case TYPE_INT_3:
2015 case TYPE_UINT_3:
2016 params[2] = ((GLint *) p)[2];
2017 /* fallthrough */
2018 case TYPE_INT_2:
2019 case TYPE_UINT_2:
2020 case TYPE_ENUM_2:
2021 params[1] = ((GLint *) p)[1];
2022 /* fallthrough */
2023 case TYPE_INT:
2024 case TYPE_UINT:
2025 case TYPE_ENUM:
2026 params[0] = ((GLint *) p)[0];
2027 break;
2028
2029 case TYPE_ENUM16:
2030 params[0] = ((GLenum16 *) p)[0];
2031 break;
2032
2033 case TYPE_INT_N:
2034 for (i = 0; i < v.value_int_n.n; i++)
2035 params[i] = v.value_int_n.ints[i];
2036 break;
2037
2038 case TYPE_INT64:
2039 params[0] = INT64_TO_INT(((GLint64 *) p)[0]);
2040 break;
2041
2042 case TYPE_BOOLEAN:
2043 params[0] = BOOLEAN_TO_INT(*(GLboolean*) p);
2044 break;
2045
2046 case TYPE_UBYTE:
2047 params[0] = ((GLubyte *) p)[0];
2048 break;
2049
2050 case TYPE_SHORT:
2051 params[0] = ((GLshort *) p)[0];
2052 break;
2053
2054 case TYPE_MATRIX:
2055 m = *(GLmatrix **) p;
2056 for (i = 0; i < 16; i++)
2057 params[i] = FLOAT_TO_INT(m->m[i]);
2058 break;
2059
2060 case TYPE_MATRIX_T:
2061 m = *(GLmatrix **) p;
2062 for (i = 0; i < 16; i++)
2063 params[i] = FLOAT_TO_INT(m->m[transpose[i]]);
2064 break;
2065
2066 case TYPE_BIT_0:
2067 case TYPE_BIT_1:
2068 case TYPE_BIT_2:
2069 case TYPE_BIT_3:
2070 case TYPE_BIT_4:
2071 case TYPE_BIT_5:
2072 case TYPE_BIT_6:
2073 case TYPE_BIT_7:
2074 shift = d->type - TYPE_BIT_0;
2075 params[0] = (*(GLbitfield *) p >> shift) & 1;
2076 break;
2077 }
2078 }
2079
2080 void GLAPIENTRY
2081 _mesa_GetInteger64v(GLenum pname, GLint64 *params)
2082 {
2083 const struct value_desc *d;
2084 union value v;
2085 GLmatrix *m;
2086 int shift, i;
2087 void *p;
2088
2089 d = find_value("glGetInteger64v", pname, &p, &v);
2090 switch (d->type) {
2091 case TYPE_INVALID:
2092 break;
2093 case TYPE_CONST:
2094 params[0] = d->offset;
2095 break;
2096
2097 case TYPE_FLOAT_8:
2098 params[7] = llround(((GLfloat *) p)[7]);
2099 params[6] = llround(((GLfloat *) p)[6]);
2100 params[5] = llround(((GLfloat *) p)[5]);
2101 params[4] = llround(((GLfloat *) p)[4]);
2102 /* fallthrough */
2103 case TYPE_FLOAT_4:
2104 params[3] = llround(((GLfloat *) p)[3]);
2105 /* fallthrough */
2106 case TYPE_FLOAT_3:
2107 params[2] = llround(((GLfloat *) p)[2]);
2108 /* fallthrough */
2109 case TYPE_FLOAT_2:
2110 params[1] = llround(((GLfloat *) p)[1]);
2111 /* fallthrough */
2112 case TYPE_FLOAT:
2113 params[0] = llround(((GLfloat *) p)[0]);
2114 break;
2115
2116 case TYPE_FLOATN_4:
2117 params[3] = FLOAT_TO_INT(((GLfloat *) p)[3]);
2118 /* fallthrough */
2119 case TYPE_FLOATN_3:
2120 params[2] = FLOAT_TO_INT(((GLfloat *) p)[2]);
2121 /* fallthrough */
2122 case TYPE_FLOATN_2:
2123 params[1] = FLOAT_TO_INT(((GLfloat *) p)[1]);
2124 /* fallthrough */
2125 case TYPE_FLOATN:
2126 params[0] = FLOAT_TO_INT(((GLfloat *) p)[0]);
2127 break;
2128
2129 case TYPE_DOUBLEN_2:
2130 params[1] = FLOAT_TO_INT(((GLdouble *) p)[1]);
2131 /* fallthrough */
2132 case TYPE_DOUBLEN:
2133 params[0] = FLOAT_TO_INT(((GLdouble *) p)[0]);
2134 break;
2135
2136 case TYPE_INT_4:
2137 params[3] = ((GLint *) p)[3];
2138 /* fallthrough */
2139 case TYPE_INT_3:
2140 params[2] = ((GLint *) p)[2];
2141 /* fallthrough */
2142 case TYPE_INT_2:
2143 case TYPE_ENUM_2:
2144 params[1] = ((GLint *) p)[1];
2145 /* fallthrough */
2146 case TYPE_INT:
2147 case TYPE_ENUM:
2148 params[0] = ((GLint *) p)[0];
2149 break;
2150
2151 case TYPE_ENUM16:
2152 params[0] = ((GLenum16 *) p)[0];
2153 break;
2154
2155 case TYPE_INT_N:
2156 for (i = 0; i < v.value_int_n.n; i++)
2157 params[i] = v.value_int_n.ints[i];
2158 break;
2159
2160 case TYPE_UINT_4:
2161 params[3] = ((GLuint *) p)[3];
2162 /* fallthrough */
2163 case TYPE_UINT_3:
2164 params[2] = ((GLuint *) p)[2];
2165 /* fallthrough */
2166 case TYPE_UINT_2:
2167 params[1] = ((GLuint *) p)[1];
2168 /* fallthrough */
2169 case TYPE_UINT:
2170 params[0] = ((GLuint *) p)[0];
2171 break;
2172
2173 case TYPE_INT64:
2174 params[0] = ((GLint64 *) p)[0];
2175 break;
2176
2177 case TYPE_BOOLEAN:
2178 params[0] = ((GLboolean*) p)[0];
2179 break;
2180
2181 case TYPE_MATRIX:
2182 m = *(GLmatrix **) p;
2183 for (i = 0; i < 16; i++)
2184 params[i] = FLOAT_TO_INT64(m->m[i]);
2185 break;
2186
2187 case TYPE_MATRIX_T:
2188 m = *(GLmatrix **) p;
2189 for (i = 0; i < 16; i++)
2190 params[i] = FLOAT_TO_INT64(m->m[transpose[i]]);
2191 break;
2192
2193 case TYPE_BIT_0:
2194 case TYPE_BIT_1:
2195 case TYPE_BIT_2:
2196 case TYPE_BIT_3:
2197 case TYPE_BIT_4:
2198 case TYPE_BIT_5:
2199 case TYPE_BIT_6:
2200 case TYPE_BIT_7:
2201 shift = d->type - TYPE_BIT_0;
2202 params[0] = (*(GLbitfield *) p >> shift) & 1;
2203 break;
2204 }
2205 }
2206
2207 void GLAPIENTRY
2208 _mesa_GetDoublev(GLenum pname, GLdouble *params)
2209 {
2210 const struct value_desc *d;
2211 union value v;
2212 GLmatrix *m;
2213 int shift, i;
2214 void *p;
2215
2216 d = find_value("glGetDoublev", pname, &p, &v);
2217 switch (d->type) {
2218 case TYPE_INVALID:
2219 break;
2220 case TYPE_CONST:
2221 params[0] = d->offset;
2222 break;
2223
2224 case TYPE_FLOAT_8:
2225 params[7] = ((GLfloat *) p)[7];
2226 params[6] = ((GLfloat *) p)[6];
2227 params[5] = ((GLfloat *) p)[5];
2228 params[4] = ((GLfloat *) p)[4];
2229 /* fallthrough */
2230 case TYPE_FLOAT_4:
2231 case TYPE_FLOATN_4:
2232 params[3] = ((GLfloat *) p)[3];
2233 /* fallthrough */
2234 case TYPE_FLOAT_3:
2235 case TYPE_FLOATN_3:
2236 params[2] = ((GLfloat *) p)[2];
2237 /* fallthrough */
2238 case TYPE_FLOAT_2:
2239 case TYPE_FLOATN_2:
2240 params[1] = ((GLfloat *) p)[1];
2241 /* fallthrough */
2242 case TYPE_FLOAT:
2243 case TYPE_FLOATN:
2244 params[0] = ((GLfloat *) p)[0];
2245 break;
2246
2247 case TYPE_DOUBLEN_2:
2248 params[1] = ((GLdouble *) p)[1];
2249 /* fallthrough */
2250 case TYPE_DOUBLEN:
2251 params[0] = ((GLdouble *) p)[0];
2252 break;
2253
2254 case TYPE_INT_4:
2255 params[3] = ((GLint *) p)[3];
2256 /* fallthrough */
2257 case TYPE_INT_3:
2258 params[2] = ((GLint *) p)[2];
2259 /* fallthrough */
2260 case TYPE_INT_2:
2261 case TYPE_ENUM_2:
2262 params[1] = ((GLint *) p)[1];
2263 /* fallthrough */
2264 case TYPE_INT:
2265 case TYPE_ENUM:
2266 params[0] = ((GLint *) p)[0];
2267 break;
2268
2269 case TYPE_ENUM16:
2270 params[0] = ((GLenum16 *) p)[0];
2271 break;
2272
2273 case TYPE_INT_N:
2274 for (i = 0; i < v.value_int_n.n; i++)
2275 params[i] = v.value_int_n.ints[i];
2276 break;
2277
2278 case TYPE_UINT_4:
2279 params[3] = ((GLuint *) p)[3];
2280 /* fallthrough */
2281 case TYPE_UINT_3:
2282 params[2] = ((GLuint *) p)[2];
2283 /* fallthrough */
2284 case TYPE_UINT_2:
2285 params[1] = ((GLuint *) p)[1];
2286 /* fallthrough */
2287 case TYPE_UINT:
2288 params[0] = ((GLuint *) p)[0];
2289 break;
2290
2291 case TYPE_INT64:
2292 params[0] = (GLdouble) (((GLint64 *) p)[0]);
2293 break;
2294
2295 case TYPE_BOOLEAN:
2296 params[0] = *(GLboolean*) p;
2297 break;
2298
2299 case TYPE_UBYTE:
2300 params[0] = ((GLubyte *) p)[0];
2301 break;
2302
2303 case TYPE_SHORT:
2304 params[0] = ((GLshort *) p)[0];
2305 break;
2306
2307 case TYPE_MATRIX:
2308 m = *(GLmatrix **) p;
2309 for (i = 0; i < 16; i++)
2310 params[i] = m->m[i];
2311 break;
2312
2313 case TYPE_MATRIX_T:
2314 m = *(GLmatrix **) p;
2315 for (i = 0; i < 16; i++)
2316 params[i] = m->m[transpose[i]];
2317 break;
2318
2319 case TYPE_BIT_0:
2320 case TYPE_BIT_1:
2321 case TYPE_BIT_2:
2322 case TYPE_BIT_3:
2323 case TYPE_BIT_4:
2324 case TYPE_BIT_5:
2325 case TYPE_BIT_6:
2326 case TYPE_BIT_7:
2327 shift = d->type - TYPE_BIT_0;
2328 params[0] = (*(GLbitfield *) p >> shift) & 1;
2329 break;
2330 }
2331 }
2332
2333 void GLAPIENTRY
2334 _mesa_GetUnsignedBytevEXT(GLenum pname, GLubyte *data)
2335 {
2336 const struct value_desc *d;
2337 union value v;
2338 int shift;
2339 void *p = NULL;
2340 GLsizei size;
2341 const char *func = "glGetUnsignedBytevEXT";
2342
2343 GET_CURRENT_CONTEXT(ctx);
2344
2345 if (!ctx->Extensions.EXT_memory_object) {
2346 _mesa_error(ctx, GL_INVALID_OPERATION, "%s(unsupported)", func);
2347 return;
2348 }
2349
2350 d = find_value(func, pname, &p, &v);
2351 size = get_value_size(d->type, &v);
2352 if (size <= 0) {
2353 _mesa_problem(ctx, "invalid value type in GetUnsignedBytevEXT()");
2354 }
2355
2356 switch (d->type) {
2357 case TYPE_BIT_0:
2358 case TYPE_BIT_1:
2359 case TYPE_BIT_2:
2360 case TYPE_BIT_3:
2361 case TYPE_BIT_4:
2362 case TYPE_BIT_5:
2363 case TYPE_BIT_6:
2364 case TYPE_BIT_7:
2365 shift = d->type - TYPE_BIT_0;
2366 data[0] = (*(GLbitfield *) p >> shift) & 1;
2367 break;
2368 case TYPE_CONST:
2369 memcpy(data, &d->offset, size);
2370 break;
2371 case TYPE_INT_N:
2372 memcpy(data, &v.value_int_n.ints, size);
2373 break;
2374 case TYPE_UINT:
2375 case TYPE_INT:
2376 case TYPE_INT_2:
2377 case TYPE_UINT_2:
2378 case TYPE_INT_3:
2379 case TYPE_UINT_3:
2380 case TYPE_INT_4:
2381 case TYPE_UINT_4:
2382 case TYPE_INT64:
2383 case TYPE_ENUM:
2384 case TYPE_ENUM_2:
2385 case TYPE_BOOLEAN:
2386 case TYPE_UBYTE:
2387 case TYPE_SHORT:
2388 case TYPE_FLOAT:
2389 case TYPE_FLOATN:
2390 case TYPE_FLOAT_2:
2391 case TYPE_FLOATN_2:
2392 case TYPE_FLOAT_3:
2393 case TYPE_FLOATN_3:
2394 case TYPE_FLOAT_4:
2395 case TYPE_FLOATN_4:
2396 case TYPE_FLOAT_8:
2397 case TYPE_DOUBLEN:
2398 case TYPE_DOUBLEN_2:
2399 case TYPE_MATRIX:
2400 case TYPE_MATRIX_T:
2401 memcpy(data, p, size);
2402 break;
2403 case TYPE_ENUM16: {
2404 GLenum e = *(GLenum16 *)p;
2405 memcpy(data, &e, sizeof(e));
2406 break;
2407 }
2408 default:
2409 break; /* nothing - GL error was recorded */
2410 }
2411 }
2412
2413 /**
2414 * Convert a GL texture binding enum such as GL_TEXTURE_BINDING_2D
2415 * into the corresponding Mesa texture target index.
2416 * \return TEXTURE_x_INDEX or -1 if binding is invalid
2417 */
2418 static int
2419 tex_binding_to_index(const struct gl_context *ctx, GLenum binding)
2420 {
2421 switch (binding) {
2422 case GL_TEXTURE_BINDING_1D:
2423 return _mesa_is_desktop_gl(ctx) ? TEXTURE_1D_INDEX : -1;
2424 case GL_TEXTURE_BINDING_2D:
2425 return TEXTURE_2D_INDEX;
2426 case GL_TEXTURE_BINDING_3D:
2427 return ctx->API != API_OPENGLES ? TEXTURE_3D_INDEX : -1;
2428 case GL_TEXTURE_BINDING_CUBE_MAP:
2429 return ctx->Extensions.ARB_texture_cube_map
2430 ? TEXTURE_CUBE_INDEX : -1;
2431 case GL_TEXTURE_BINDING_RECTANGLE:
2432 return _mesa_is_desktop_gl(ctx) && ctx->Extensions.NV_texture_rectangle
2433 ? TEXTURE_RECT_INDEX : -1;
2434 case GL_TEXTURE_BINDING_1D_ARRAY:
2435 return _mesa_is_desktop_gl(ctx) && ctx->Extensions.EXT_texture_array
2436 ? TEXTURE_1D_ARRAY_INDEX : -1;
2437 case GL_TEXTURE_BINDING_2D_ARRAY:
2438 return (_mesa_is_desktop_gl(ctx) && ctx->Extensions.EXT_texture_array)
2439 || _mesa_is_gles3(ctx)
2440 ? TEXTURE_2D_ARRAY_INDEX : -1;
2441 case GL_TEXTURE_BINDING_BUFFER:
2442 return (_mesa_has_ARB_texture_buffer_object(ctx) ||
2443 _mesa_has_OES_texture_buffer(ctx)) ?
2444 TEXTURE_BUFFER_INDEX : -1;
2445 case GL_TEXTURE_BINDING_CUBE_MAP_ARRAY:
2446 return _mesa_has_texture_cube_map_array(ctx)
2447 ? TEXTURE_CUBE_ARRAY_INDEX : -1;
2448 case GL_TEXTURE_BINDING_2D_MULTISAMPLE:
2449 return _mesa_is_desktop_gl(ctx) && ctx->Extensions.ARB_texture_multisample
2450 ? TEXTURE_2D_MULTISAMPLE_INDEX : -1;
2451 case GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY:
2452 return _mesa_is_desktop_gl(ctx) && ctx->Extensions.ARB_texture_multisample
2453 ? TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX : -1;
2454 default:
2455 return -1;
2456 }
2457 }
2458
2459 static enum value_type
2460 find_value_indexed(const char *func, GLenum pname, GLuint index, union value *v)
2461 {
2462 GET_CURRENT_CONTEXT(ctx);
2463 struct gl_buffer_object *buf;
2464
2465 switch (pname) {
2466
2467 case GL_BLEND:
2468 if (index >= ctx->Const.MaxDrawBuffers)
2469 goto invalid_value;
2470 if (!ctx->Extensions.EXT_draw_buffers2)
2471 goto invalid_enum;
2472 v->value_int = (ctx->Color.BlendEnabled >> index) & 1;
2473 return TYPE_INT;
2474
2475 case GL_BLEND_SRC:
2476 /* fall-through */
2477 case GL_BLEND_SRC_RGB:
2478 if (index >= ctx->Const.MaxDrawBuffers)
2479 goto invalid_value;
2480 if (!ctx->Extensions.ARB_draw_buffers_blend)
2481 goto invalid_enum;
2482 v->value_int = ctx->Color.Blend[index].SrcRGB;
2483 return TYPE_INT;
2484 case GL_BLEND_SRC_ALPHA:
2485 if (index >= ctx->Const.MaxDrawBuffers)
2486 goto invalid_value;
2487 if (!ctx->Extensions.ARB_draw_buffers_blend)
2488 goto invalid_enum;
2489 v->value_int = ctx->Color.Blend[index].SrcA;
2490 return TYPE_INT;
2491 case GL_BLEND_DST:
2492 /* fall-through */
2493 case GL_BLEND_DST_RGB:
2494 if (index >= ctx->Const.MaxDrawBuffers)
2495 goto invalid_value;
2496 if (!ctx->Extensions.ARB_draw_buffers_blend)
2497 goto invalid_enum;
2498 v->value_int = ctx->Color.Blend[index].DstRGB;
2499 return TYPE_INT;
2500 case GL_BLEND_DST_ALPHA:
2501 if (index >= ctx->Const.MaxDrawBuffers)
2502 goto invalid_value;
2503 if (!ctx->Extensions.ARB_draw_buffers_blend)
2504 goto invalid_enum;
2505 v->value_int = ctx->Color.Blend[index].DstA;
2506 return TYPE_INT;
2507 case GL_BLEND_EQUATION_RGB:
2508 if (index >= ctx->Const.MaxDrawBuffers)
2509 goto invalid_value;
2510 if (!ctx->Extensions.ARB_draw_buffers_blend)
2511 goto invalid_enum;
2512 v->value_int = ctx->Color.Blend[index].EquationRGB;
2513 return TYPE_INT;
2514 case GL_BLEND_EQUATION_ALPHA:
2515 if (index >= ctx->Const.MaxDrawBuffers)
2516 goto invalid_value;
2517 if (!ctx->Extensions.ARB_draw_buffers_blend)
2518 goto invalid_enum;
2519 v->value_int = ctx->Color.Blend[index].EquationA;
2520 return TYPE_INT;
2521
2522 case GL_COLOR_WRITEMASK:
2523 if (index >= ctx->Const.MaxDrawBuffers)
2524 goto invalid_value;
2525 if (!ctx->Extensions.EXT_draw_buffers2)
2526 goto invalid_enum;
2527 v->value_int_4[0] = GET_COLORMASK_BIT(ctx->Color.ColorMask, index, 0);
2528 v->value_int_4[1] = GET_COLORMASK_BIT(ctx->Color.ColorMask, index, 1);
2529 v->value_int_4[2] = GET_COLORMASK_BIT(ctx->Color.ColorMask, index, 2);
2530 v->value_int_4[3] = GET_COLORMASK_BIT(ctx->Color.ColorMask, index, 3);
2531 return TYPE_INT_4;
2532
2533 case GL_SCISSOR_BOX:
2534 if (index >= ctx->Const.MaxViewports)
2535 goto invalid_value;
2536 v->value_int_4[0] = ctx->Scissor.ScissorArray[index].X;
2537 v->value_int_4[1] = ctx->Scissor.ScissorArray[index].Y;
2538 v->value_int_4[2] = ctx->Scissor.ScissorArray[index].Width;
2539 v->value_int_4[3] = ctx->Scissor.ScissorArray[index].Height;
2540 return TYPE_INT_4;
2541
2542 case GL_WINDOW_RECTANGLE_EXT:
2543 if (!ctx->Extensions.EXT_window_rectangles)
2544 goto invalid_enum;
2545 if (index >= ctx->Const.MaxWindowRectangles)
2546 goto invalid_value;
2547 v->value_int_4[0] = ctx->Scissor.WindowRects[index].X;
2548 v->value_int_4[1] = ctx->Scissor.WindowRects[index].Y;
2549 v->value_int_4[2] = ctx->Scissor.WindowRects[index].Width;
2550 v->value_int_4[3] = ctx->Scissor.WindowRects[index].Height;
2551 return TYPE_INT_4;
2552
2553 case GL_VIEWPORT:
2554 if (index >= ctx->Const.MaxViewports)
2555 goto invalid_value;
2556 v->value_float_4[0] = ctx->ViewportArray[index].X;
2557 v->value_float_4[1] = ctx->ViewportArray[index].Y;
2558 v->value_float_4[2] = ctx->ViewportArray[index].Width;
2559 v->value_float_4[3] = ctx->ViewportArray[index].Height;
2560 return TYPE_FLOAT_4;
2561
2562 case GL_DEPTH_RANGE:
2563 if (index >= ctx->Const.MaxViewports)
2564 goto invalid_value;
2565 v->value_double_2[0] = ctx->ViewportArray[index].Near;
2566 v->value_double_2[1] = ctx->ViewportArray[index].Far;
2567 return TYPE_DOUBLEN_2;
2568
2569 case GL_TRANSFORM_FEEDBACK_BUFFER_START:
2570 if (index >= ctx->Const.MaxTransformFeedbackBuffers)
2571 goto invalid_value;
2572 if (!ctx->Extensions.EXT_transform_feedback)
2573 goto invalid_enum;
2574 v->value_int64 = ctx->TransformFeedback.CurrentObject->Offset[index];
2575 return TYPE_INT64;
2576
2577 case GL_TRANSFORM_FEEDBACK_BUFFER_SIZE:
2578 if (index >= ctx->Const.MaxTransformFeedbackBuffers)
2579 goto invalid_value;
2580 if (!ctx->Extensions.EXT_transform_feedback)
2581 goto invalid_enum;
2582 v->value_int64
2583 = ctx->TransformFeedback.CurrentObject->RequestedSize[index];
2584 return TYPE_INT64;
2585
2586 case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING:
2587 if (index >= ctx->Const.MaxTransformFeedbackBuffers)
2588 goto invalid_value;
2589 if (!ctx->Extensions.EXT_transform_feedback)
2590 goto invalid_enum;
2591 v->value_int = ctx->TransformFeedback.CurrentObject->BufferNames[index];
2592 return TYPE_INT;
2593
2594 case GL_UNIFORM_BUFFER_BINDING:
2595 if (index >= ctx->Const.MaxUniformBufferBindings)
2596 goto invalid_value;
2597 if (!ctx->Extensions.ARB_uniform_buffer_object)
2598 goto invalid_enum;
2599 buf = ctx->UniformBufferBindings[index].BufferObject;
2600 v->value_int = buf ? buf->Name : 0;
2601 return TYPE_INT;
2602
2603 case GL_UNIFORM_BUFFER_START:
2604 if (index >= ctx->Const.MaxUniformBufferBindings)
2605 goto invalid_value;
2606 if (!ctx->Extensions.ARB_uniform_buffer_object)
2607 goto invalid_enum;
2608 v->value_int = ctx->UniformBufferBindings[index].Offset < 0 ? 0 :
2609 ctx->UniformBufferBindings[index].Offset;
2610 return TYPE_INT;
2611
2612 case GL_UNIFORM_BUFFER_SIZE:
2613 if (index >= ctx->Const.MaxUniformBufferBindings)
2614 goto invalid_value;
2615 if (!ctx->Extensions.ARB_uniform_buffer_object)
2616 goto invalid_enum;
2617 v->value_int = ctx->UniformBufferBindings[index].Size < 0 ? 0 :
2618 ctx->UniformBufferBindings[index].Size;
2619 return TYPE_INT;
2620
2621 /* ARB_shader_storage_buffer_object */
2622 case GL_SHADER_STORAGE_BUFFER_BINDING:
2623 if (!ctx->Extensions.ARB_shader_storage_buffer_object)
2624 goto invalid_enum;
2625 if (index >= ctx->Const.MaxShaderStorageBufferBindings)
2626 goto invalid_value;
2627 buf = ctx->ShaderStorageBufferBindings[index].BufferObject;
2628 v->value_int = buf ? buf->Name : 0;
2629 return TYPE_INT;
2630
2631 case GL_SHADER_STORAGE_BUFFER_START:
2632 if (!ctx->Extensions.ARB_shader_storage_buffer_object)
2633 goto invalid_enum;
2634 if (index >= ctx->Const.MaxShaderStorageBufferBindings)
2635 goto invalid_value;
2636 v->value_int = ctx->ShaderStorageBufferBindings[index].Offset < 0 ? 0 :
2637 ctx->ShaderStorageBufferBindings[index].Offset;
2638 return TYPE_INT;
2639
2640 case GL_SHADER_STORAGE_BUFFER_SIZE:
2641 if (!ctx->Extensions.ARB_shader_storage_buffer_object)
2642 goto invalid_enum;
2643 if (index >= ctx->Const.MaxShaderStorageBufferBindings)
2644 goto invalid_value;
2645 v->value_int = ctx->ShaderStorageBufferBindings[index].Size < 0 ? 0 :
2646 ctx->ShaderStorageBufferBindings[index].Size;
2647 return TYPE_INT;
2648
2649 /* ARB_texture_multisample / GL3.2 */
2650 case GL_SAMPLE_MASK_VALUE:
2651 if (index != 0)
2652 goto invalid_value;
2653 if (!ctx->Extensions.ARB_texture_multisample)
2654 goto invalid_enum;
2655 v->value_int = ctx->Multisample.SampleMaskValue;
2656 return TYPE_INT;
2657
2658 case GL_ATOMIC_COUNTER_BUFFER_BINDING:
2659 if (!ctx->Extensions.ARB_shader_atomic_counters)
2660 goto invalid_enum;
2661 if (index >= ctx->Const.MaxAtomicBufferBindings)
2662 goto invalid_value;
2663 buf = ctx->AtomicBufferBindings[index].BufferObject;
2664 v->value_int = buf ? buf->Name : 0;
2665 return TYPE_INT;
2666
2667 case GL_ATOMIC_COUNTER_BUFFER_START:
2668 if (!ctx->Extensions.ARB_shader_atomic_counters)
2669 goto invalid_enum;
2670 if (index >= ctx->Const.MaxAtomicBufferBindings)
2671 goto invalid_value;
2672 v->value_int64 = ctx->AtomicBufferBindings[index].Offset < 0 ? 0 :
2673 ctx->AtomicBufferBindings[index].Offset;
2674 return TYPE_INT64;
2675
2676 case GL_ATOMIC_COUNTER_BUFFER_SIZE:
2677 if (!ctx->Extensions.ARB_shader_atomic_counters)
2678 goto invalid_enum;
2679 if (index >= ctx->Const.MaxAtomicBufferBindings)
2680 goto invalid_value;
2681 v->value_int64 = ctx->AtomicBufferBindings[index].Size < 0 ? 0 :
2682 ctx->AtomicBufferBindings[index].Size;
2683 return TYPE_INT64;
2684
2685 case GL_VERTEX_BINDING_DIVISOR:
2686 if ((!_mesa_is_desktop_gl(ctx) || !ctx->Extensions.ARB_instanced_arrays) &&
2687 !_mesa_is_gles31(ctx))
2688 goto invalid_enum;
2689 if (index >= ctx->Const.Program[MESA_SHADER_VERTEX].MaxAttribs)
2690 goto invalid_value;
2691 v->value_int = ctx->Array.VAO->BufferBinding[VERT_ATTRIB_GENERIC(index)].InstanceDivisor;
2692 return TYPE_INT;
2693
2694 case GL_VERTEX_BINDING_OFFSET:
2695 if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles31(ctx))
2696 goto invalid_enum;
2697 if (index >= ctx->Const.Program[MESA_SHADER_VERTEX].MaxAttribs)
2698 goto invalid_value;
2699 v->value_int = ctx->Array.VAO->BufferBinding[VERT_ATTRIB_GENERIC(index)].Offset;
2700 return TYPE_INT;
2701
2702 case GL_VERTEX_BINDING_STRIDE:
2703 if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles31(ctx))
2704 goto invalid_enum;
2705 if (index >= ctx->Const.Program[MESA_SHADER_VERTEX].MaxAttribs)
2706 goto invalid_value;
2707 v->value_int = ctx->Array.VAO->BufferBinding[VERT_ATTRIB_GENERIC(index)].Stride;
2708 return TYPE_INT;
2709
2710 case GL_VERTEX_BINDING_BUFFER:
2711 if (ctx->API == API_OPENGLES2 && ctx->Version < 31)
2712 goto invalid_enum;
2713 if (index >= ctx->Const.Program[MESA_SHADER_VERTEX].MaxAttribs)
2714 goto invalid_value;
2715 buf = ctx->Array.VAO->BufferBinding[VERT_ATTRIB_GENERIC(index)].BufferObj;
2716 v->value_int = buf ? buf->Name : 0;
2717 return TYPE_INT;
2718
2719 /* ARB_shader_image_load_store */
2720 case GL_IMAGE_BINDING_NAME: {
2721 struct gl_texture_object *t;
2722
2723 if (!ctx->Extensions.ARB_shader_image_load_store)
2724 goto invalid_enum;
2725 if (index >= ctx->Const.MaxImageUnits)
2726 goto invalid_value;
2727
2728 t = ctx->ImageUnits[index].TexObj;
2729 v->value_int = (t ? t->Name : 0);
2730 return TYPE_INT;
2731 }
2732
2733 case GL_IMAGE_BINDING_LEVEL:
2734 if (!ctx->Extensions.ARB_shader_image_load_store)
2735 goto invalid_enum;
2736 if (index >= ctx->Const.MaxImageUnits)
2737 goto invalid_value;
2738
2739 v->value_int = ctx->ImageUnits[index].Level;
2740 return TYPE_INT;
2741
2742 case GL_IMAGE_BINDING_LAYERED:
2743 if (!ctx->Extensions.ARB_shader_image_load_store)
2744 goto invalid_enum;
2745 if (index >= ctx->Const.MaxImageUnits)
2746 goto invalid_value;
2747
2748 v->value_int = ctx->ImageUnits[index].Layered;
2749 return TYPE_INT;
2750
2751 case GL_IMAGE_BINDING_LAYER:
2752 if (!ctx->Extensions.ARB_shader_image_load_store)
2753 goto invalid_enum;
2754 if (index >= ctx->Const.MaxImageUnits)
2755 goto invalid_value;
2756
2757 v->value_int = ctx->ImageUnits[index].Layer;
2758 return TYPE_INT;
2759
2760 case GL_IMAGE_BINDING_ACCESS:
2761 if (!ctx->Extensions.ARB_shader_image_load_store)
2762 goto invalid_enum;
2763 if (index >= ctx->Const.MaxImageUnits)
2764 goto invalid_value;
2765
2766 v->value_int = ctx->ImageUnits[index].Access;
2767 return TYPE_INT;
2768
2769 case GL_IMAGE_BINDING_FORMAT:
2770 if (!ctx->Extensions.ARB_shader_image_load_store)
2771 goto invalid_enum;
2772 if (index >= ctx->Const.MaxImageUnits)
2773 goto invalid_value;
2774
2775 v->value_int = ctx->ImageUnits[index].Format;
2776 return TYPE_INT;
2777
2778 /* ARB_direct_state_access */
2779 case GL_TEXTURE_BINDING_1D:
2780 case GL_TEXTURE_BINDING_1D_ARRAY:
2781 case GL_TEXTURE_BINDING_2D:
2782 case GL_TEXTURE_BINDING_2D_ARRAY:
2783 case GL_TEXTURE_BINDING_2D_MULTISAMPLE:
2784 case GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY:
2785 case GL_TEXTURE_BINDING_3D:
2786 case GL_TEXTURE_BINDING_BUFFER:
2787 case GL_TEXTURE_BINDING_CUBE_MAP:
2788 case GL_TEXTURE_BINDING_CUBE_MAP_ARRAY:
2789 case GL_TEXTURE_BINDING_RECTANGLE: {
2790 int target;
2791
2792 target = tex_binding_to_index(ctx, pname);
2793 if (target < 0)
2794 goto invalid_enum;
2795 if (index >= _mesa_max_tex_unit(ctx))
2796 goto invalid_value;
2797
2798 v->value_int = ctx->Texture.Unit[index].CurrentTex[target]->Name;
2799 return TYPE_INT;
2800 }
2801
2802 case GL_SAMPLER_BINDING: {
2803 struct gl_sampler_object *samp;
2804
2805 if (!_mesa_is_desktop_gl(ctx) || ctx->Version < 33)
2806 goto invalid_enum;
2807 if (index >= _mesa_max_tex_unit(ctx))
2808 goto invalid_value;
2809
2810 samp = ctx->Texture.Unit[index].Sampler;
2811 v->value_int = samp ? samp->Name : 0;
2812 return TYPE_INT;
2813 }
2814
2815 case GL_MAX_COMPUTE_WORK_GROUP_COUNT:
2816 if (!_mesa_has_compute_shaders(ctx))
2817 goto invalid_enum;
2818 if (index >= 3)
2819 goto invalid_value;
2820 v->value_int = ctx->Const.MaxComputeWorkGroupCount[index];
2821 return TYPE_INT;
2822
2823 case GL_MAX_COMPUTE_WORK_GROUP_SIZE:
2824 if (!_mesa_has_compute_shaders(ctx))
2825 goto invalid_enum;
2826 if (index >= 3)
2827 goto invalid_value;
2828 v->value_int = ctx->Const.MaxComputeWorkGroupSize[index];
2829 return TYPE_INT;
2830
2831 /* ARB_compute_variable_group_size */
2832 case GL_MAX_COMPUTE_VARIABLE_GROUP_SIZE_ARB:
2833 if (!ctx->Extensions.ARB_compute_variable_group_size)
2834 goto invalid_enum;
2835 if (index >= 3)
2836 goto invalid_value;
2837 v->value_int = ctx->Const.MaxComputeVariableGroupSize[index];
2838 return TYPE_INT;
2839
2840 /* GL_EXT_external_objects */
2841 case GL_NUM_DEVICE_UUIDS_EXT:
2842 v->value_int = 1;
2843 return TYPE_INT;
2844 case GL_DRIVER_UUID_EXT:
2845 if (index >= 1)
2846 goto invalid_value;
2847 _mesa_get_driver_uuid(ctx, v->value_int_4);
2848 return TYPE_INT_4;
2849 case GL_DEVICE_UUID_EXT:
2850 if (index >= 1)
2851 goto invalid_value;
2852 _mesa_get_device_uuid(ctx, v->value_int_4);
2853 return TYPE_INT_4;
2854 /* GL_EXT_direct_state_access */
2855 case GL_TEXTURE_1D:
2856 case GL_TEXTURE_2D:
2857 case GL_TEXTURE_3D:
2858 case GL_TEXTURE_CUBE_MAP:
2859 case GL_TEXTURE_GEN_S:
2860 case GL_TEXTURE_GEN_T:
2861 case GL_TEXTURE_GEN_R:
2862 case GL_TEXTURE_GEN_Q:
2863 case GL_TEXTURE_RECTANGLE_ARB: {
2864 GLuint curTexUnitSave;
2865 if (index >= _mesa_max_tex_unit(ctx))
2866 goto invalid_enum;
2867 curTexUnitSave = ctx->Texture.CurrentUnit;
2868 _mesa_ActiveTexture_no_error(GL_TEXTURE0 + index);
2869 v->value_int = _mesa_IsEnabled(pname);
2870 _mesa_ActiveTexture_no_error(GL_TEXTURE0 + curTexUnitSave);
2871 return TYPE_INT;
2872 }
2873 case GL_TEXTURE_COORD_ARRAY: {
2874 GLuint curTexUnitSave;
2875 if (index >= ctx->Const.MaxTextureCoordUnits)
2876 goto invalid_enum;
2877 curTexUnitSave = ctx->Array.ActiveTexture;
2878 _mesa_ClientActiveTexture(GL_TEXTURE0 + index);
2879 v->value_int = _mesa_IsEnabled(pname);
2880 _mesa_ClientActiveTexture(GL_TEXTURE0 + curTexUnitSave);
2881 return TYPE_INT;
2882 }
2883 case GL_TEXTURE_MATRIX:
2884 if (index >= ARRAY_SIZE(ctx->TextureMatrixStack))
2885 goto invalid_enum;
2886 v->value_matrix = ctx->TextureMatrixStack[index].Top;
2887 return TYPE_MATRIX;
2888 case GL_TRANSPOSE_TEXTURE_MATRIX:
2889 if (index >= ARRAY_SIZE(ctx->TextureMatrixStack))
2890 goto invalid_enum;
2891 v->value_matrix = ctx->TextureMatrixStack[index].Top;
2892 return TYPE_MATRIX_T;
2893 /* GL_NV_viewport_swizzle */
2894 case GL_VIEWPORT_SWIZZLE_X_NV:
2895 if (!ctx->Extensions.NV_viewport_swizzle)
2896 goto invalid_enum;
2897 if (index >= ctx->Const.MaxViewports)
2898 goto invalid_value;
2899 v->value_int = ctx->ViewportArray[index].SwizzleX;
2900 return TYPE_INT;
2901 case GL_VIEWPORT_SWIZZLE_Y_NV:
2902 if (!ctx->Extensions.NV_viewport_swizzle)
2903 goto invalid_enum;
2904 if (index >= ctx->Const.MaxViewports)
2905 goto invalid_value;
2906 v->value_int = ctx->ViewportArray[index].SwizzleY;
2907 return TYPE_INT;
2908 case GL_VIEWPORT_SWIZZLE_Z_NV:
2909 if (!ctx->Extensions.NV_viewport_swizzle)
2910 goto invalid_enum;
2911 if (index >= ctx->Const.MaxViewports)
2912 goto invalid_value;
2913 v->value_int = ctx->ViewportArray[index].SwizzleZ;
2914 return TYPE_INT;
2915 case GL_VIEWPORT_SWIZZLE_W_NV:
2916 if (!ctx->Extensions.NV_viewport_swizzle)
2917 goto invalid_enum;
2918 if (index >= ctx->Const.MaxViewports)
2919 goto invalid_value;
2920 v->value_int = ctx->ViewportArray[index].SwizzleW;
2921 return TYPE_INT;
2922 }
2923
2924 invalid_enum:
2925 _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func,
2926 _mesa_enum_to_string(pname));
2927 return TYPE_INVALID;
2928 invalid_value:
2929 _mesa_error(ctx, GL_INVALID_VALUE, "%s(pname=%s)", func,
2930 _mesa_enum_to_string(pname));
2931 return TYPE_INVALID;
2932 }
2933
2934 void GLAPIENTRY
2935 _mesa_GetBooleani_v( GLenum pname, GLuint index, GLboolean *params )
2936 {
2937 union value v;
2938 enum value_type type =
2939 find_value_indexed("glGetBooleani_v", pname, index, &v);
2940
2941 switch (type) {
2942 case TYPE_INT:
2943 case TYPE_UINT:
2944 params[0] = INT_TO_BOOLEAN(v.value_int);
2945 break;
2946 case TYPE_INT_4:
2947 case TYPE_UINT_4:
2948 params[0] = INT_TO_BOOLEAN(v.value_int_4[0]);
2949 params[1] = INT_TO_BOOLEAN(v.value_int_4[1]);
2950 params[2] = INT_TO_BOOLEAN(v.value_int_4[2]);
2951 params[3] = INT_TO_BOOLEAN(v.value_int_4[3]);
2952 break;
2953 case TYPE_INT64:
2954 params[0] = INT64_TO_BOOLEAN(v.value_int64);
2955 break;
2956 default:
2957 ; /* nothing - GL error was recorded */
2958 }
2959 }
2960
2961 void GLAPIENTRY
2962 _mesa_GetIntegeri_v( GLenum pname, GLuint index, GLint *params )
2963 {
2964 union value v;
2965 enum value_type type =
2966 find_value_indexed("glGetIntegeri_v", pname, index, &v);
2967
2968 switch (type) {
2969 case TYPE_FLOAT_4:
2970 case TYPE_FLOATN_4:
2971 params[3] = lroundf(v.value_float_4[3]);
2972 /* fallthrough */
2973 case TYPE_FLOAT_3:
2974 case TYPE_FLOATN_3:
2975 params[2] = lroundf(v.value_float_4[2]);
2976 /* fallthrough */
2977 case TYPE_FLOAT_2:
2978 case TYPE_FLOATN_2:
2979 params[1] = lroundf(v.value_float_4[1]);
2980 /* fallthrough */
2981 case TYPE_FLOAT:
2982 case TYPE_FLOATN:
2983 params[0] = lroundf(v.value_float_4[0]);
2984 break;
2985
2986 case TYPE_DOUBLEN_2:
2987 params[1] = lroundf(v.value_double_2[1]);
2988 /* fallthrough */
2989 case TYPE_DOUBLEN:
2990 params[0] = lroundf(v.value_double_2[0]);
2991 break;
2992
2993 case TYPE_INT:
2994 case TYPE_UINT:
2995 params[0] = v.value_int;
2996 break;
2997 case TYPE_INT_4:
2998 case TYPE_UINT_4:
2999 params[0] = v.value_int_4[0];
3000 params[1] = v.value_int_4[1];
3001 params[2] = v.value_int_4[2];
3002 params[3] = v.value_int_4[3];
3003 break;
3004 case TYPE_INT64:
3005 params[0] = INT64_TO_INT(v.value_int64);
3006 break;
3007 default:
3008 ; /* nothing - GL error was recorded */
3009 }
3010 }
3011
3012 void GLAPIENTRY
3013 _mesa_GetInteger64i_v( GLenum pname, GLuint index, GLint64 *params )
3014 {
3015 union value v;
3016 enum value_type type =
3017 find_value_indexed("glGetInteger64i_v", pname, index, &v);
3018
3019 switch (type) {
3020 case TYPE_INT:
3021 params[0] = v.value_int;
3022 break;
3023 case TYPE_INT_4:
3024 params[0] = v.value_int_4[0];
3025 params[1] = v.value_int_4[1];
3026 params[2] = v.value_int_4[2];
3027 params[3] = v.value_int_4[3];
3028 break;
3029 case TYPE_UINT:
3030 params[0] = (GLuint) v.value_int;
3031 break;
3032 case TYPE_UINT_4:
3033 params[0] = (GLuint) v.value_int_4[0];
3034 params[1] = (GLuint) v.value_int_4[1];
3035 params[2] = (GLuint) v.value_int_4[2];
3036 params[3] = (GLuint) v.value_int_4[3];
3037 break;
3038 case TYPE_INT64:
3039 params[0] = v.value_int64;
3040 break;
3041 default:
3042 ; /* nothing - GL error was recorded */
3043 }
3044 }
3045
3046 void GLAPIENTRY
3047 _mesa_GetFloati_v(GLenum pname, GLuint index, GLfloat *params)
3048 {
3049 int i;
3050 GLmatrix *m;
3051 union value v;
3052 enum value_type type =
3053 find_value_indexed("glGetFloati_v", pname, index, &v);
3054
3055 switch (type) {
3056 case TYPE_FLOAT_4:
3057 case TYPE_FLOATN_4:
3058 params[3] = v.value_float_4[3];
3059 /* fallthrough */
3060 case TYPE_FLOAT_3:
3061 case TYPE_FLOATN_3:
3062 params[2] = v.value_float_4[2];
3063 /* fallthrough */
3064 case TYPE_FLOAT_2:
3065 case TYPE_FLOATN_2:
3066 params[1] = v.value_float_4[1];
3067 /* fallthrough */
3068 case TYPE_FLOAT:
3069 case TYPE_FLOATN:
3070 params[0] = v.value_float_4[0];
3071 break;
3072
3073 case TYPE_DOUBLEN_2:
3074 params[1] = (GLfloat) v.value_double_2[1];
3075 /* fallthrough */
3076 case TYPE_DOUBLEN:
3077 params[0] = (GLfloat) v.value_double_2[0];
3078 break;
3079
3080 case TYPE_INT_4:
3081 params[3] = (GLfloat) v.value_int_4[3];
3082 /* fallthrough */
3083 case TYPE_INT_3:
3084 params[2] = (GLfloat) v.value_int_4[2];
3085 /* fallthrough */
3086 case TYPE_INT_2:
3087 case TYPE_ENUM_2:
3088 params[1] = (GLfloat) v.value_int_4[1];
3089 /* fallthrough */
3090 case TYPE_INT:
3091 case TYPE_ENUM:
3092 case TYPE_ENUM16:
3093 params[0] = (GLfloat) v.value_int_4[0];
3094 break;
3095
3096 case TYPE_INT_N:
3097 for (i = 0; i < v.value_int_n.n; i++)
3098 params[i] = (GLfloat) v.value_int_n.ints[i];
3099 break;
3100
3101 case TYPE_UINT_4:
3102 params[3] = (GLfloat) ((GLuint) v.value_int_4[3]);
3103 /* fallthrough */
3104 case TYPE_UINT_3:
3105 params[2] = (GLfloat) ((GLuint) v.value_int_4[2]);
3106 /* fallthrough */
3107 case TYPE_UINT_2:
3108 params[1] = (GLfloat) ((GLuint) v.value_int_4[1]);
3109 /* fallthrough */
3110 case TYPE_UINT:
3111 params[0] = (GLfloat) ((GLuint) v.value_int_4[0]);
3112 break;
3113
3114 case TYPE_INT64:
3115 params[0] = (GLfloat) v.value_int64;
3116 break;
3117
3118 case TYPE_BOOLEAN:
3119 params[0] = BOOLEAN_TO_FLOAT(v.value_bool);
3120 break;
3121
3122 case TYPE_UBYTE:
3123 params[0] = (GLfloat) v.value_ubyte;
3124 break;
3125
3126 case TYPE_SHORT:
3127 params[0] = (GLfloat) v.value_short;
3128 break;
3129
3130 case TYPE_MATRIX:
3131 m = *(GLmatrix **) &v;
3132 for (i = 0; i < 16; i++)
3133 params[i] = m->m[i];
3134 break;
3135
3136 case TYPE_MATRIX_T:
3137 m = *(GLmatrix **) &v;
3138 for (i = 0; i < 16; i++)
3139 params[i] = m->m[transpose[i]];
3140 break;
3141
3142 default:
3143 ;
3144 }
3145 }
3146
3147 void GLAPIENTRY
3148 _mesa_GetDoublei_v(GLenum pname, GLuint index, GLdouble *params)
3149 {
3150 int i;
3151 GLmatrix *m;
3152 union value v;
3153 enum value_type type =
3154 find_value_indexed("glGetDoublei_v", pname, index, &v);
3155
3156 switch (type) {
3157 case TYPE_FLOAT_4:
3158 case TYPE_FLOATN_4:
3159 params[3] = (GLdouble) v.value_float_4[3];
3160 /* fallthrough */
3161 case TYPE_FLOAT_3:
3162 case TYPE_FLOATN_3:
3163 params[2] = (GLdouble) v.value_float_4[2];
3164 /* fallthrough */
3165 case TYPE_FLOAT_2:
3166 case TYPE_FLOATN_2:
3167 params[1] = (GLdouble) v.value_float_4[1];
3168 /* fallthrough */
3169 case TYPE_FLOAT:
3170 case TYPE_FLOATN:
3171 params[0] = (GLdouble) v.value_float_4[0];
3172 break;
3173
3174 case TYPE_DOUBLEN_2:
3175 params[1] = v.value_double_2[1];
3176 /* fallthrough */
3177 case TYPE_DOUBLEN:
3178 params[0] = v.value_double_2[0];
3179 break;
3180
3181 case TYPE_INT_4:
3182 params[3] = (GLdouble) v.value_int_4[3];
3183 /* fallthrough */
3184 case TYPE_INT_3:
3185 params[2] = (GLdouble) v.value_int_4[2];
3186 /* fallthrough */
3187 case TYPE_INT_2:
3188 case TYPE_ENUM_2:
3189 params[1] = (GLdouble) v.value_int_4[1];
3190 /* fallthrough */
3191 case TYPE_INT:
3192 case TYPE_ENUM:
3193 case TYPE_ENUM16:
3194 params[0] = (GLdouble) v.value_int_4[0];
3195 break;
3196
3197 case TYPE_INT_N:
3198 for (i = 0; i < v.value_int_n.n; i++)
3199 params[i] = (GLdouble) v.value_int_n.ints[i];
3200 break;
3201
3202 case TYPE_UINT_4:
3203 params[3] = (GLdouble) ((GLuint) v.value_int_4[3]);
3204 /* fallthrough */
3205 case TYPE_UINT_3:
3206 params[2] = (GLdouble) ((GLuint) v.value_int_4[2]);
3207 /* fallthrough */
3208 case TYPE_UINT_2:
3209 params[1] = (GLdouble) ((GLuint) v.value_int_4[1]);
3210 /* fallthrough */
3211 case TYPE_UINT:
3212 params[0] = (GLdouble) ((GLuint) v.value_int_4[0]);
3213 break;
3214
3215 case TYPE_INT64:
3216 params[0] = (GLdouble) v.value_int64;
3217 break;
3218
3219 case TYPE_BOOLEAN:
3220 params[0] = (GLdouble) BOOLEAN_TO_FLOAT(v.value_bool);
3221 break;
3222
3223 case TYPE_UBYTE:
3224 params[0] = (GLdouble) v.value_ubyte;
3225 break;
3226
3227 case TYPE_SHORT:
3228 params[0] = (GLdouble) v.value_short;
3229 break;
3230
3231 case TYPE_MATRIX:
3232 m = *(GLmatrix **) &v;
3233 for (i = 0; i < 16; i++)
3234 params[i] = (GLdouble) m->m[i];
3235 break;
3236
3237 case TYPE_MATRIX_T:
3238 m = *(GLmatrix **) &v;
3239 for (i = 0; i < 16; i++)
3240 params[i] = (GLdouble) m->m[transpose[i]];
3241 break;
3242
3243 default:
3244 ;
3245 }
3246 }
3247
3248 void GLAPIENTRY
3249 _mesa_GetUnsignedBytei_vEXT(GLenum target, GLuint index, GLubyte *data)
3250 {
3251 GLsizei size;
3252 union value v;
3253 enum value_type type;
3254 const char *func = "glGetUnsignedBytei_vEXT";
3255
3256 GET_CURRENT_CONTEXT(ctx);
3257
3258 if (!ctx->Extensions.EXT_memory_object) {
3259 _mesa_error(ctx, GL_INVALID_OPERATION, "%s(unsupported)", func);
3260 return;
3261 }
3262
3263 type = find_value_indexed(func, target, index, &v);
3264 size = get_value_size(type, &v);
3265 if (size <= 0) {
3266 _mesa_problem(ctx, "invalid value type in GetUnsignedBytei_vEXT()");
3267 }
3268
3269 switch (type) {
3270 case TYPE_UINT:
3271 case TYPE_INT:
3272 case TYPE_INT_2:
3273 case TYPE_UINT_2:
3274 case TYPE_INT_3:
3275 case TYPE_UINT_3:
3276 case TYPE_INT_4:
3277 case TYPE_UINT_4:
3278 case TYPE_INT64:
3279 case TYPE_ENUM16:
3280 case TYPE_ENUM:
3281 case TYPE_ENUM_2:
3282 case TYPE_BOOLEAN:
3283 case TYPE_UBYTE:
3284 case TYPE_SHORT:
3285 case TYPE_FLOAT:
3286 case TYPE_FLOATN:
3287 case TYPE_FLOAT_2:
3288 case TYPE_FLOATN_2:
3289 case TYPE_FLOAT_3:
3290 case TYPE_FLOATN_3:
3291 case TYPE_FLOAT_4:
3292 case TYPE_FLOATN_4:
3293 case TYPE_FLOAT_8:
3294 case TYPE_DOUBLEN:
3295 case TYPE_DOUBLEN_2:
3296 case TYPE_MATRIX:
3297 case TYPE_MATRIX_T:
3298 memcpy(data, &v.value_int, size);
3299 break;
3300 case TYPE_INT_N:
3301 memcpy(data, &v.value_int_n.ints, size);
3302 break;
3303 default:
3304 break; /* nothing - GL error was recorded */
3305 }
3306 }
3307
3308 void GLAPIENTRY
3309 _mesa_GetFixedv(GLenum pname, GLfixed *params)
3310 {
3311 const struct value_desc *d;
3312 union value v;
3313 GLmatrix *m;
3314 int shift, i;
3315 void *p;
3316
3317 d = find_value("glGetDoublev", pname, &p, &v);
3318 switch (d->type) {
3319 case TYPE_INVALID:
3320 break;
3321 case TYPE_CONST:
3322 params[0] = INT_TO_FIXED(d->offset);
3323 break;
3324
3325 case TYPE_FLOAT_4:
3326 case TYPE_FLOATN_4:
3327 params[3] = FLOAT_TO_FIXED(((GLfloat *) p)[3]);
3328 /* fallthrough */
3329 case TYPE_FLOAT_3:
3330 case TYPE_FLOATN_3:
3331 params[2] = FLOAT_TO_FIXED(((GLfloat *) p)[2]);
3332 /* fallthrough */
3333 case TYPE_FLOAT_2:
3334 case TYPE_FLOATN_2:
3335 params[1] = FLOAT_TO_FIXED(((GLfloat *) p)[1]);
3336 /* fallthrough */
3337 case TYPE_FLOAT:
3338 case TYPE_FLOATN:
3339 params[0] = FLOAT_TO_FIXED(((GLfloat *) p)[0]);
3340 break;