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