a1199e5ad53156aeeaaf79398986aa17760d0bf7
[mesa.git] / src / mesa / main / get.c
1 /*
2 * Copyright (C) 2010 Brian Paul All Rights Reserved.
3 * Copyright (C) 2010 Intel Corporation
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice shall be included
13 * in all copies or substantial portions of the Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
16 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
19 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
20 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
21 * OTHER DEALINGS IN THE SOFTWARE.
22 *
23 * Author: Kristian Høgsberg <krh@bitplanet.net>
24 */
25
26 #include "glheader.h"
27 #include "context.h"
28 #include "blend.h"
29 #include "debug_output.h"
30 #include "enable.h"
31 #include "enums.h"
32 #include "errors.h"
33 #include "extensions.h"
34 #include "get.h"
35 #include "macros.h"
36 #include "mtypes.h"
37 #include "spirv_extensions.h"
38 #include "state.h"
39 #include "texcompress.h"
40 #include "texstate.h"
41 #include "framebuffer.h"
42 #include "samplerobj.h"
43 #include "stencil.h"
44 #include "version.h"
45
46 /* This is a table driven implemetation of the glGet*v() functions.
47 * The basic idea is that most getters just look up an int somewhere
48 * in struct gl_context and then convert it to a bool or float according to
49 * which of glGetIntegerv() glGetBooleanv() etc is being called.
50 * Instead of generating code to do this, we can just record the enum
51 * value and the offset into struct gl_context in an array of structs. Then
52 * in glGet*(), we lookup the struct for the enum in question, and use
53 * the offset to get the int we need.
54 *
55 * Sometimes we need to look up a float, a boolean, a bit in a
56 * bitfield, a matrix or other types instead, so we need to track the
57 * type of the value in struct gl_context. And sometimes the value isn't in
58 * struct gl_context but in the drawbuffer, the array object, current texture
59 * unit, or maybe it's a computed value. So we need to also track
60 * where or how to find the value. Finally, we sometimes need to
61 * check that one of a number of extensions are enabled, the GL
62 * version or flush or call _mesa_update_state(). This is done by
63 * attaching optional extra information to the value description
64 * struct, it's sort of like an array of opcodes that describe extra
65 * checks or actions.
66 *
67 * Putting all this together we end up with struct value_desc below,
68 * and with a couple of macros to help, the table of struct value_desc
69 * is about as concise as the specification in the old python script.
70 */
71
72 static inline GLboolean
73 FLOAT_TO_BOOLEAN(GLfloat X)
74 {
75 return ( (X) ? GL_TRUE : GL_FALSE );
76 }
77
78 static inline GLint
79 FLOAT_TO_FIXED(GLfloat F)
80 {
81 return ( ((F) * 65536.0f > INT_MAX) ? INT_MAX :
82 ((F) * 65536.0f < INT_MIN) ? INT_MIN :
83 (GLint) ((F) * 65536.0f) );
84 }
85
86 static inline GLboolean
87 INT_TO_BOOLEAN(GLint I)
88 {
89 return ( (I) ? GL_TRUE : GL_FALSE );
90 }
91
92 static inline GLfixed
93 INT_TO_FIXED(GLint I)
94 {
95 return (((I) > SHRT_MAX) ? INT_MAX :
96 ((I) < SHRT_MIN) ? INT_MIN :
97 (GLint) ((I) * 65536) );
98 }
99
100
101 static inline GLboolean
102 INT64_TO_BOOLEAN(GLint64 I)
103 {
104 return ( (I) ? GL_TRUE : GL_FALSE );
105 }
106
107 static inline GLint
108 INT64_TO_INT(GLint64 I)
109 {
110 return ( (GLint)((I > INT_MAX) ? INT_MAX : ((I < INT_MIN) ? INT_MIN : (I))) );
111 }
112
113 static inline GLint
114 BOOLEAN_TO_INT(GLboolean B)
115 {
116 return ( (GLint) (B) );
117 }
118
119 static inline GLfloat
120 BOOLEAN_TO_FLOAT(GLboolean B)
121 {
122 return ( (B) ? 1.0F : 0.0F );
123 }
124
125 static inline GLfixed
126 BOOLEAN_TO_FIXED(GLboolean B)
127 {
128 return ( (GLint) ((B) ? 1 : 0) << 16 );
129 }
130
131 enum value_type {
132 TYPE_INVALID,
133 TYPE_INT,
134 TYPE_INT_2,
135 TYPE_INT_3,
136 TYPE_INT_4,
137 TYPE_INT_N,
138 TYPE_UINT,
139 TYPE_UINT_2,
140 TYPE_UINT_3,
141 TYPE_UINT_4,
142 TYPE_INT64,
143 TYPE_ENUM16,
144 TYPE_ENUM,
145 TYPE_ENUM_2,
146 TYPE_BOOLEAN,
147 TYPE_UBYTE,
148 TYPE_SHORT,
149 TYPE_BIT_0,
150 TYPE_BIT_1,
151 TYPE_BIT_2,
152 TYPE_BIT_3,
153 TYPE_BIT_4,
154 TYPE_BIT_5,
155 TYPE_BIT_6,
156 TYPE_BIT_7,
157 TYPE_FLOAT,
158 TYPE_FLOAT_2,
159 TYPE_FLOAT_3,
160 TYPE_FLOAT_4,
161 TYPE_FLOAT_8,
162 TYPE_FLOATN,
163 TYPE_FLOATN_2,
164 TYPE_FLOATN_3,
165 TYPE_FLOATN_4,
166 TYPE_DOUBLEN,
167 TYPE_DOUBLEN_2,
168 TYPE_MATRIX,
169 TYPE_MATRIX_T,
170 TYPE_CONST
171 };
172
173 enum value_location {
174 LOC_BUFFER,
175 LOC_CONTEXT,
176 LOC_ARRAY,
177 LOC_TEXUNIT,
178 LOC_CUSTOM
179 };
180
181 enum value_extra {
182 EXTRA_END = 0x8000,
183 EXTRA_VERSION_30,
184 EXTRA_VERSION_31,
185 EXTRA_VERSION_32,
186 EXTRA_VERSION_40,
187 EXTRA_VERSION_43,
188 EXTRA_API_GL,
189 EXTRA_API_GL_CORE,
190 EXTRA_API_ES2,
191 EXTRA_API_ES3,
192 EXTRA_API_ES31,
193 EXTRA_API_ES32,
194 EXTRA_NEW_BUFFERS,
195 EXTRA_VALID_DRAW_BUFFER,
196 EXTRA_VALID_TEXTURE_UNIT,
197 EXTRA_VALID_CLIP_DISTANCE,
198 EXTRA_FLUSH_CURRENT,
199 EXTRA_GLSL_130,
200 EXTRA_EXT_UBO_GS,
201 EXTRA_EXT_ATOMICS_GS,
202 EXTRA_EXT_SHADER_IMAGE_GS,
203 EXTRA_EXT_ATOMICS_TESS,
204 EXTRA_EXT_SHADER_IMAGE_TESS,
205 EXTRA_EXT_SSBO_GS,
206 EXTRA_EXT_FB_NO_ATTACH_GS,
207 EXTRA_EXT_ES_GS,
208 EXTRA_EXT_PROVOKING_VERTEX_32,
209 };
210
211 #define NO_EXTRA NULL
212 #define NO_OFFSET 0
213
214 struct value_desc {
215 GLenum pname;
216 GLubyte location; /**< enum value_location */
217 GLubyte type; /**< enum value_type */
218 int offset;
219 const int *extra;
220 };
221
222 union value {
223 GLfloat value_float;
224 GLfloat value_float_4[4];
225 GLdouble value_double_2[2];
226 GLmatrix *value_matrix;
227 GLint value_int;
228 GLint value_int_4[4];
229 GLint64 value_int64;
230 GLenum value_enum;
231 GLenum16 value_enum16;
232 GLubyte value_ubyte;
233 GLshort value_short;
234 GLuint value_uint;
235
236 /* Sigh, see GL_COMPRESSED_TEXTURE_FORMATS_ARB handling */
237 struct {
238 GLint n, ints[100];
239 } value_int_n;
240 GLboolean value_bool;
241 };
242
243 #define BUFFER_FIELD(field, type) \
244 LOC_BUFFER, type, offsetof(struct gl_framebuffer, field)
245 #define CONTEXT_FIELD(field, type) \
246 LOC_CONTEXT, type, offsetof(struct gl_context, field)
247 #define ARRAY_FIELD(field, type) \
248 LOC_ARRAY, type, offsetof(struct gl_vertex_array_object, field)
249 #undef CONST /* already defined through windows.h */
250 #define CONST(value) \
251 LOC_CONTEXT, TYPE_CONST, value
252
253 #define BUFFER_INT(field) BUFFER_FIELD(field, TYPE_INT)
254 #define BUFFER_ENUM(field) BUFFER_FIELD(field, TYPE_ENUM)
255 #define BUFFER_ENUM16(field) BUFFER_FIELD(field, TYPE_ENUM16)
256 #define BUFFER_BOOL(field) BUFFER_FIELD(field, TYPE_BOOLEAN)
257
258 #define CONTEXT_INT(field) CONTEXT_FIELD(field, TYPE_INT)
259 #define CONTEXT_INT2(field) CONTEXT_FIELD(field, TYPE_INT_2)
260 #define CONTEXT_INT64(field) CONTEXT_FIELD(field, TYPE_INT64)
261 #define CONTEXT_UINT(field) CONTEXT_FIELD(field, TYPE_UINT)
262 #define CONTEXT_ENUM16(field) CONTEXT_FIELD(field, TYPE_ENUM16)
263 #define CONTEXT_ENUM(field) CONTEXT_FIELD(field, TYPE_ENUM)
264 #define CONTEXT_ENUM2(field) CONTEXT_FIELD(field, TYPE_ENUM_2)
265 #define CONTEXT_BOOL(field) CONTEXT_FIELD(field, TYPE_BOOLEAN)
266 #define CONTEXT_BIT0(field) CONTEXT_FIELD(field, TYPE_BIT_0)
267 #define CONTEXT_BIT1(field) CONTEXT_FIELD(field, TYPE_BIT_1)
268 #define CONTEXT_BIT2(field) CONTEXT_FIELD(field, TYPE_BIT_2)
269 #define CONTEXT_BIT3(field) CONTEXT_FIELD(field, TYPE_BIT_3)
270 #define CONTEXT_BIT4(field) CONTEXT_FIELD(field, TYPE_BIT_4)
271 #define CONTEXT_BIT5(field) CONTEXT_FIELD(field, TYPE_BIT_5)
272 #define CONTEXT_BIT6(field) CONTEXT_FIELD(field, TYPE_BIT_6)
273 #define CONTEXT_BIT7(field) CONTEXT_FIELD(field, TYPE_BIT_7)
274 #define CONTEXT_FLOAT(field) CONTEXT_FIELD(field, TYPE_FLOAT)
275 #define CONTEXT_FLOAT2(field) CONTEXT_FIELD(field, TYPE_FLOAT_2)
276 #define CONTEXT_FLOAT3(field) CONTEXT_FIELD(field, TYPE_FLOAT_3)
277 #define CONTEXT_FLOAT4(field) CONTEXT_FIELD(field, TYPE_FLOAT_4)
278 #define CONTEXT_FLOAT8(field) CONTEXT_FIELD(field, TYPE_FLOAT_8)
279 #define CONTEXT_MATRIX(field) CONTEXT_FIELD(field, TYPE_MATRIX)
280 #define CONTEXT_MATRIX_T(field) CONTEXT_FIELD(field, TYPE_MATRIX_T)
281
282 /* Vertex array fields */
283 #define ARRAY_INT(field) ARRAY_FIELD(field, TYPE_INT)
284 #define ARRAY_ENUM(field) ARRAY_FIELD(field, TYPE_ENUM)
285 #define ARRAY_ENUM16(field) ARRAY_FIELD(field, TYPE_ENUM16)
286 #define ARRAY_BOOL(field) ARRAY_FIELD(field, TYPE_BOOLEAN)
287 #define ARRAY_UBYTE(field) ARRAY_FIELD(field, TYPE_UBYTE)
288 #define ARRAY_SHORT(field) ARRAY_FIELD(field, TYPE_SHORT)
289
290 #define EXT(f) \
291 offsetof(struct gl_extensions, f)
292
293 #define EXTRA_EXT(e) \
294 static const int extra_##e[] = { \
295 EXT(e), EXTRA_END \
296 }
297
298 #define EXTRA_EXT2(e1, e2) \
299 static const int extra_##e1##_##e2[] = { \
300 EXT(e1), EXT(e2), EXTRA_END \
301 }
302
303 /* The 'extra' mechanism is a way to specify extra checks (such as
304 * extensions or specific gl versions) or actions (flush current, new
305 * buffers) that we need to do before looking up an enum. We need to
306 * declare them all up front so we can refer to them in the value_desc
307 * structs below.
308 *
309 * Each EXTRA_ will be executed. For EXTRA_* enums of extensions and API
310 * versions, listing multiple ones in an array means an error will be thrown
311 * only if none of them are available. If you need to check for "AND"
312 * behavior, you would need to make a custom EXTRA_ enum.
313 */
314
315 static const int extra_new_buffers[] = {
316 EXTRA_NEW_BUFFERS,
317 EXTRA_END
318 };
319
320 static const int extra_valid_draw_buffer[] = {
321 EXTRA_VALID_DRAW_BUFFER,
322 EXTRA_END
323 };
324
325 static const int extra_valid_texture_unit[] = {
326 EXTRA_VALID_TEXTURE_UNIT,
327 EXTRA_END
328 };
329
330 static const int extra_valid_clip_distance[] = {
331 EXTRA_VALID_CLIP_DISTANCE,
332 EXTRA_END
333 };
334
335 static const int extra_flush_current_valid_texture_unit[] = {
336 EXTRA_FLUSH_CURRENT,
337 EXTRA_VALID_TEXTURE_UNIT,
338 EXTRA_END
339 };
340
341 static const int extra_flush_current[] = {
342 EXTRA_FLUSH_CURRENT,
343 EXTRA_END
344 };
345
346 static const int extra_EXT_texture_integer_and_new_buffers[] = {
347 EXT(EXT_texture_integer),
348 EXTRA_NEW_BUFFERS,
349 EXTRA_END
350 };
351
352 static const int extra_GLSL_130_es3_gpushader4[] = {
353 EXTRA_GLSL_130,
354 EXTRA_API_ES3,
355 EXT(EXT_gpu_shader4),
356 EXTRA_END
357 };
358
359 static const int extra_texture_buffer_object[] = {
360 EXT(ARB_texture_buffer_object),
361 EXTRA_END
362 };
363
364 static const int extra_ARB_transform_feedback2_api_es3[] = {
365 EXT(ARB_transform_feedback2),
366 EXTRA_API_ES3,
367 EXTRA_END
368 };
369
370 static const int extra_ARB_uniform_buffer_object_and_geometry_shader[] = {
371 EXTRA_EXT_UBO_GS,
372 EXTRA_END
373 };
374
375 static const int extra_ARB_ES2_compatibility_api_es2[] = {
376 EXT(ARB_ES2_compatibility),
377 EXTRA_API_ES2,
378 EXTRA_END
379 };
380
381 static const int extra_ARB_ES3_compatibility_api_es3[] = {
382 EXT(ARB_ES3_compatibility),
383 EXTRA_API_ES3,
384 EXTRA_END
385 };
386
387 static const int extra_EXT_framebuffer_sRGB_and_new_buffers[] = {
388 EXT(EXT_framebuffer_sRGB),
389 EXTRA_NEW_BUFFERS,
390 EXTRA_END
391 };
392
393 static const int extra_EXT_packed_float[] = {
394 EXT(EXT_packed_float),
395 EXTRA_NEW_BUFFERS,
396 EXTRA_END
397 };
398
399 static const int extra_EXT_texture_array_es3[] = {
400 EXT(EXT_texture_array),
401 EXTRA_API_ES3,
402 EXTRA_END
403 };
404
405 static const int extra_ARB_shader_atomic_counters_and_geometry_shader[] = {
406 EXTRA_EXT_ATOMICS_GS,
407 EXTRA_END
408 };
409
410 static const int extra_ARB_shader_image_load_store_and_geometry_shader[] = {
411 EXTRA_EXT_SHADER_IMAGE_GS,
412 EXTRA_END
413 };
414
415 static const int extra_ARB_shader_atomic_counters_and_tessellation[] = {
416 EXTRA_EXT_ATOMICS_TESS,
417 EXTRA_END
418 };
419
420 static const int extra_ARB_shader_image_load_store_and_tessellation[] = {
421 EXTRA_EXT_SHADER_IMAGE_TESS,
422 EXTRA_END
423 };
424
425 /* HACK: remove when ARB_compute_shader is actually supported */
426 static const int extra_ARB_compute_shader_es31[] = {
427 EXT(ARB_compute_shader),
428 EXTRA_API_ES31,
429 EXTRA_END
430 };
431
432 static const int extra_ARB_shader_storage_buffer_object_es31[] = {
433 EXT(ARB_shader_storage_buffer_object),
434 EXTRA_API_ES31,
435 EXTRA_END
436 };
437
438 static const int extra_ARB_shader_storage_buffer_object_and_geometry_shader[] = {
439 EXTRA_EXT_SSBO_GS,
440 EXTRA_END
441 };
442
443 static const int extra_ARB_shader_image_load_store_shader_storage_buffer_object_es31[] = {
444 EXT(ARB_shader_image_load_store),
445 EXT(ARB_shader_storage_buffer_object),
446 EXTRA_API_ES31,
447 EXTRA_END
448 };
449
450 static const int extra_ARB_framebuffer_no_attachments_and_geometry_shader[] = {
451 EXTRA_EXT_FB_NO_ATTACH_GS,
452 EXTRA_END
453 };
454
455 static const int extra_ARB_viewport_array_or_oes_geometry_shader[] = {
456 EXT(ARB_viewport_array),
457 EXTRA_EXT_ES_GS,
458 EXTRA_END
459 };
460
461 static const int extra_ARB_viewport_array_or_oes_viewport_array[] = {
462 EXT(ARB_viewport_array),
463 EXT(OES_viewport_array),
464 EXTRA_END
465 };
466
467 static const int extra_ARB_gpu_shader5_or_oes_geometry_shader[] = {
468 EXT(ARB_gpu_shader5),
469 EXTRA_EXT_ES_GS,
470 EXTRA_END
471 };
472
473 static const int extra_ARB_gpu_shader5_or_OES_sample_variables[] = {
474 EXT(ARB_gpu_shader5),
475 EXT(OES_sample_variables),
476 EXTRA_END
477 };
478
479 static const int extra_ES32[] = {
480 EXT(ARB_ES3_2_compatibility),
481 EXTRA_API_ES32,
482 EXTRA_END
483 };
484
485 static const int extra_KHR_robustness_or_GL[] = {
486 EXT(KHR_robustness),
487 EXTRA_API_GL,
488 EXTRA_API_GL_CORE,
489 EXTRA_END
490 };
491
492 static const int extra_INTEL_conservative_rasterization[] = {
493 EXT(INTEL_conservative_rasterization),
494 EXTRA_END
495 };
496
497 EXTRA_EXT(ARB_texture_cube_map);
498 EXTRA_EXT(EXT_texture_array);
499 EXTRA_EXT(NV_fog_distance);
500 EXTRA_EXT(EXT_texture_filter_anisotropic);
501 EXTRA_EXT(NV_point_sprite);
502 EXTRA_EXT(NV_texture_rectangle);
503 EXTRA_EXT(EXT_stencil_two_side);
504 EXTRA_EXT(EXT_depth_bounds_test);
505 EXTRA_EXT(ARB_depth_clamp);
506 EXTRA_EXT(AMD_depth_clamp_separate);
507 EXTRA_EXT(ATI_fragment_shader);
508 EXTRA_EXT(EXT_provoking_vertex);
509 EXTRA_EXT(ARB_fragment_shader);
510 EXTRA_EXT(ARB_fragment_program);
511 EXTRA_EXT2(ARB_framebuffer_object, EXT_framebuffer_multisample);
512 EXTRA_EXT(ARB_seamless_cube_map);
513 EXTRA_EXT(ARB_sync);
514 EXTRA_EXT(ARB_vertex_shader);
515 EXTRA_EXT(EXT_transform_feedback);
516 EXTRA_EXT(ARB_transform_feedback3);
517 EXTRA_EXT(EXT_pixel_buffer_object);
518 EXTRA_EXT(ARB_vertex_program);
519 EXTRA_EXT2(NV_point_sprite, ARB_point_sprite);
520 EXTRA_EXT2(ARB_vertex_program, ARB_fragment_program);
521 EXTRA_EXT(ARB_color_buffer_float);
522 EXTRA_EXT(EXT_framebuffer_sRGB);
523 EXTRA_EXT(OES_EGL_image_external);
524 EXTRA_EXT(ARB_blend_func_extended);
525 EXTRA_EXT(ARB_uniform_buffer_object);
526 EXTRA_EXT(ARB_timer_query);
527 EXTRA_EXT2(ARB_texture_cube_map_array, OES_texture_cube_map_array);
528 EXTRA_EXT(ARB_texture_buffer_range);
529 EXTRA_EXT(ARB_texture_multisample);
530 EXTRA_EXT(ARB_texture_gather);
531 EXTRA_EXT(ARB_shader_atomic_counters);
532 EXTRA_EXT(ARB_draw_indirect);
533 EXTRA_EXT(ARB_shader_image_load_store);
534 EXTRA_EXT(ARB_query_buffer_object);
535 EXTRA_EXT2(ARB_transform_feedback3, ARB_gpu_shader5);
536 EXTRA_EXT(INTEL_performance_query);
537 EXTRA_EXT(ARB_explicit_uniform_location);
538 EXTRA_EXT(ARB_clip_control);
539 EXTRA_EXT(ARB_polygon_offset_clamp);
540 EXTRA_EXT(ARB_framebuffer_no_attachments);
541 EXTRA_EXT(ARB_tessellation_shader);
542 EXTRA_EXT(ARB_shader_storage_buffer_object);
543 EXTRA_EXT(ARB_indirect_parameters);
544 EXTRA_EXT(ATI_meminfo);
545 EXTRA_EXT(NVX_gpu_memory_info);
546 EXTRA_EXT(ARB_cull_distance);
547 EXTRA_EXT(EXT_window_rectangles);
548 EXTRA_EXT(KHR_blend_equation_advanced_coherent);
549 EXTRA_EXT(OES_primitive_bounding_box);
550 EXTRA_EXT(ARB_compute_variable_group_size);
551 EXTRA_EXT(KHR_robustness);
552 EXTRA_EXT(ARB_sparse_buffer);
553 EXTRA_EXT(NV_conservative_raster);
554 EXTRA_EXT(NV_conservative_raster_dilate);
555 EXTRA_EXT(NV_conservative_raster_pre_snap_triangles);
556 EXTRA_EXT(ARB_sample_locations);
557 EXTRA_EXT(AMD_framebuffer_multisample_advanced);
558 EXTRA_EXT(ARB_spirv_extensions);
559 EXTRA_EXT(NV_viewport_swizzle);
560
561 static const int
562 extra_ARB_color_buffer_float_or_glcore[] = {
563 EXT(ARB_color_buffer_float),
564 EXTRA_API_GL_CORE,
565 EXTRA_END
566 };
567
568 static const int
569 extra_NV_primitive_restart[] = {
570 EXT(NV_primitive_restart),
571 EXTRA_END
572 };
573
574 static const int extra_version_30[] = { EXTRA_VERSION_30, EXTRA_END };
575 static const int extra_version_31[] = { EXTRA_VERSION_31, EXTRA_END };
576 static const int extra_version_32[] = { EXTRA_VERSION_32, EXTRA_END };
577 static const int extra_version_43[] = { EXTRA_VERSION_43, EXTRA_END };
578
579 static const int extra_gl30_es3[] = {
580 EXTRA_VERSION_30,
581 EXTRA_API_ES3,
582 EXTRA_END,
583 };
584
585 static const int extra_gl32_es3[] = {
586 EXTRA_VERSION_32,
587 EXTRA_API_ES3,
588 EXTRA_END,
589 };
590
591 static const int extra_version_32_OES_geometry_shader[] = {
592 EXTRA_VERSION_32,
593 EXTRA_EXT_ES_GS,
594 EXTRA_END
595 };
596
597 static const int extra_gl40_ARB_sample_shading[] = {
598 EXTRA_VERSION_40,
599 EXT(ARB_sample_shading),
600 EXTRA_END
601 };
602
603 static const int
604 extra_ARB_vertex_program_api_es2[] = {
605 EXT(ARB_vertex_program),
606 EXTRA_API_ES2,
607 EXTRA_END
608 };
609
610 /* The ReadBuffer get token is valid under either full GL or under
611 * GLES2 if the NV_read_buffer extension is available. */
612 static const int
613 extra_NV_read_buffer_api_gl[] = {
614 EXTRA_API_ES2,
615 EXTRA_API_GL,
616 EXTRA_END
617 };
618
619 static const int extra_core_ARB_color_buffer_float_and_new_buffers[] = {
620 EXTRA_API_GL_CORE,
621 EXT(ARB_color_buffer_float),
622 EXTRA_NEW_BUFFERS,
623 EXTRA_END
624 };
625
626 static const int extra_EXT_shader_framebuffer_fetch[] = {
627 EXTRA_API_ES2,
628 EXTRA_API_ES3,
629 EXT(EXT_shader_framebuffer_fetch),
630 EXTRA_END
631 };
632
633 static const int extra_EXT_provoking_vertex_32[] = {
634 EXTRA_EXT_PROVOKING_VERTEX_32,
635 EXTRA_END
636 };
637
638 static const int extra_EXT_disjoint_timer_query[] = {
639 EXTRA_API_ES2,
640 EXTRA_API_ES3,
641 EXT(EXT_disjoint_timer_query),
642 EXTRA_END
643 };
644
645
646 /* This is the big table describing all the enums we accept in
647 * glGet*v(). The table is partitioned into six parts: enums
648 * understood by all GL APIs (OpenGL, GLES and GLES2), enums shared
649 * between OpenGL and GLES, enums exclusive to GLES, etc for the
650 * remaining combinations. To look up the enums valid in a given API
651 * we will use a hash table specific to that API. These tables are in
652 * turn generated at build time and included through get_hash.h.
653 */
654
655 #include "get_hash.h"
656
657 /* All we need now is a way to look up the value struct from the enum.
658 * The code generated by gcc for the old generated big switch
659 * statement is a big, balanced, open coded if/else tree, essentially
660 * an unrolled binary search. It would be natural to sort the new
661 * enum table and use bsearch(), but we will use a read-only hash
662 * table instead. bsearch() has a nice guaranteed worst case
663 * performance, but we're also guaranteed to hit that worst case
664 * (log2(n) iterations) for about half the enums. Instead, using an
665 * open addressing hash table, we can find the enum on the first try
666 * for 80% of the enums, 1 collision for 10% and never more than 5
667 * collisions for any enum (typical numbers). And the code is very
668 * simple, even though it feels a little magic. */
669
670 /**
671 * Handle irregular enums
672 *
673 * Some values don't conform to the "well-known type at context
674 * pointer + offset" pattern, so we have this function to catch all
675 * the corner cases. Typically, it's a computed value or a one-off
676 * pointer to a custom struct or something.
677 *
678 * In this case we can't return a pointer to the value, so we'll have
679 * to use the temporary variable 'v' declared back in the calling
680 * glGet*v() function to store the result.
681 *
682 * \param ctx the current context
683 * \param d the struct value_desc that describes the enum
684 * \param v pointer to the tmp declared in the calling glGet*v() function
685 */
686 static void
687 find_custom_value(struct gl_context *ctx, const struct value_desc *d, union value *v)
688 {
689 struct gl_buffer_object **buffer_obj, *buf;
690 struct gl_array_attributes *array;
691 GLuint unit, *p;
692
693 switch (d->pname) {
694 case GL_MAJOR_VERSION:
695 v->value_int = ctx->Version / 10;
696 break;
697 case GL_MINOR_VERSION:
698 v->value_int = ctx->Version % 10;
699 break;
700
701 case GL_TEXTURE_1D:
702 case GL_TEXTURE_2D:
703 case GL_TEXTURE_3D:
704 case GL_TEXTURE_CUBE_MAP:
705 case GL_TEXTURE_RECTANGLE_NV:
706 case GL_TEXTURE_EXTERNAL_OES:
707 v->value_bool = _mesa_IsEnabled(d->pname);
708 break;
709
710 case GL_LINE_STIPPLE_PATTERN:
711 /* This is the only GLushort, special case it here by promoting
712 * to an int rather than introducing a new type. */
713 v->value_int = ctx->Line.StipplePattern;
714 break;
715
716 case GL_CURRENT_RASTER_TEXTURE_COORDS:
717 unit = ctx->Texture.CurrentUnit;
718 v->value_float_4[0] = ctx->Current.RasterTexCoords[unit][0];
719 v->value_float_4[1] = ctx->Current.RasterTexCoords[unit][1];
720 v->value_float_4[2] = ctx->Current.RasterTexCoords[unit][2];
721 v->value_float_4[3] = ctx->Current.RasterTexCoords[unit][3];
722 break;
723
724 case GL_CURRENT_TEXTURE_COORDS:
725 unit = ctx->Texture.CurrentUnit;
726 v->value_float_4[0] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][0];
727 v->value_float_4[1] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][1];
728 v->value_float_4[2] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][2];
729 v->value_float_4[3] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][3];
730 break;
731
732 case GL_COLOR_WRITEMASK:
733 v->value_int_4[0] = GET_COLORMASK_BIT(ctx->Color.ColorMask, 0, 0);
734 v->value_int_4[1] = GET_COLORMASK_BIT(ctx->Color.ColorMask, 0, 1);
735 v->value_int_4[2] = GET_COLORMASK_BIT(ctx->Color.ColorMask, 0, 2);
736 v->value_int_4[3] = GET_COLORMASK_BIT(ctx->Color.ColorMask, 0, 3);
737 break;
738
739 case GL_DEPTH_CLAMP:
740 v->value_bool = ctx->Transform.DepthClampNear || ctx->Transform.DepthClampFar;
741 break;
742
743 case GL_EDGE_FLAG:
744 v->value_bool = ctx->Current.Attrib[VERT_ATTRIB_EDGEFLAG][0] == 1.0F;
745 break;
746
747 case GL_READ_BUFFER:
748 v->value_enum16 = ctx->ReadBuffer->ColorReadBuffer;
749 break;
750
751 case GL_MAP2_GRID_DOMAIN:
752 v->value_float_4[0] = ctx->Eval.MapGrid2u1;
753 v->value_float_4[1] = ctx->Eval.MapGrid2u2;
754 v->value_float_4[2] = ctx->Eval.MapGrid2v1;
755 v->value_float_4[3] = ctx->Eval.MapGrid2v2;
756 break;
757
758 case GL_TEXTURE_STACK_DEPTH:
759 unit = ctx->Texture.CurrentUnit;
760 v->value_int = ctx->TextureMatrixStack[unit].Depth + 1;
761 break;
762 case GL_TEXTURE_MATRIX:
763 unit = ctx->Texture.CurrentUnit;
764 v->value_matrix = ctx->TextureMatrixStack[unit].Top;
765 break;
766
767 case GL_VERTEX_ARRAY:
768 v->value_bool = !!(ctx->Array.VAO->Enabled & VERT_BIT_POS);
769 break;
770 case GL_NORMAL_ARRAY:
771 v->value_bool = !!(ctx->Array.VAO->Enabled & VERT_BIT_NORMAL);
772 break;
773 case GL_COLOR_ARRAY:
774 v->value_bool = !!(ctx->Array.VAO->Enabled & VERT_BIT_COLOR0);
775 break;
776 case GL_TEXTURE_COORD_ARRAY:
777 v->value_bool = !!(ctx->Array.VAO->Enabled & VERT_BIT_TEX(ctx->Array.ActiveTexture));
778 break;
779 case GL_INDEX_ARRAY:
780 v->value_bool = !!(ctx->Array.VAO->Enabled & VERT_BIT_COLOR_INDEX);
781 break;
782 case GL_EDGE_FLAG_ARRAY:
783 v->value_bool = !!(ctx->Array.VAO->Enabled & VERT_BIT_EDGEFLAG);
784 break;
785 case GL_SECONDARY_COLOR_ARRAY:
786 v->value_bool = !!(ctx->Array.VAO->Enabled & VERT_BIT_COLOR1);
787 break;
788 case GL_FOG_COORDINATE_ARRAY:
789 v->value_bool = !!(ctx->Array.VAO->Enabled & VERT_BIT_FOG);
790 break;
791 case GL_POINT_SIZE_ARRAY_OES:
792 v->value_bool = !!(ctx->Array.VAO->Enabled & VERT_BIT_POINT_SIZE);
793 break;
794
795 case GL_TEXTURE_COORD_ARRAY_TYPE:
796 case GL_TEXTURE_COORD_ARRAY_STRIDE:
797 array = &ctx->Array.VAO->VertexAttrib[VERT_ATTRIB_TEX(ctx->Array.ActiveTexture)];
798 v->value_int = *(GLuint *) ((char *) array + d->offset);
799 break;
800
801 case GL_TEXTURE_COORD_ARRAY_SIZE:
802 array = &ctx->Array.VAO->VertexAttrib[VERT_ATTRIB_TEX(ctx->Array.ActiveTexture)];
803 v->value_int = array->Format.Size;
804 break;
805
806 case GL_VERTEX_ARRAY_SIZE:
807 array = &ctx->Array.VAO->VertexAttrib[VERT_ATTRIB_POS];
808 v->value_int = array->Format.Size;
809 break;
810
811 case GL_ACTIVE_TEXTURE_ARB:
812 v->value_int = GL_TEXTURE0_ARB + ctx->Texture.CurrentUnit;
813 break;
814 case GL_CLIENT_ACTIVE_TEXTURE_ARB:
815 v->value_int = GL_TEXTURE0_ARB + ctx->Array.ActiveTexture;
816 break;
817
818 case GL_MODELVIEW_STACK_DEPTH:
819 case GL_PROJECTION_STACK_DEPTH:
820 v->value_int = *(GLint *) ((char *) ctx + d->offset) + 1;
821 break;
822
823 case GL_MAX_TEXTURE_SIZE:
824 case GL_MAX_3D_TEXTURE_SIZE:
825 case GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB:
826 p = (GLuint *) ((char *) ctx + d->offset);
827 v->value_int = 1 << (*p - 1);
828 break;
829
830 case GL_SCISSOR_BOX:
831 v->value_int_4[0] = ctx->Scissor.ScissorArray[0].X;
832 v->value_int_4[1] = ctx->Scissor.ScissorArray[0].Y;
833 v->value_int_4[2] = ctx->Scissor.ScissorArray[0].Width;
834 v->value_int_4[3] = ctx->Scissor.ScissorArray[0].Height;
835 break;
836
837 case GL_SCISSOR_TEST:
838 v->value_bool = ctx->Scissor.EnableFlags & 1;
839 break;
840
841 case GL_LIST_INDEX:
842 v->value_int =
843 ctx->ListState.CurrentList ? ctx->ListState.CurrentList->Name : 0;
844 break;
845 case GL_LIST_MODE:
846 if (!ctx->CompileFlag)
847 v->value_enum16 = 0;
848 else if (ctx->ExecuteFlag)
849 v->value_enum16 = GL_COMPILE_AND_EXECUTE;
850 else
851 v->value_enum16 = GL_COMPILE;
852 break;
853
854 case GL_VIEWPORT:
855 v->value_float_4[0] = ctx->ViewportArray[0].X;
856 v->value_float_4[1] = ctx->ViewportArray[0].Y;
857 v->value_float_4[2] = ctx->ViewportArray[0].Width;
858 v->value_float_4[3] = ctx->ViewportArray[0].Height;
859 break;
860
861 case GL_DEPTH_RANGE:
862 v->value_double_2[0] = ctx->ViewportArray[0].Near;
863 v->value_double_2[1] = ctx->ViewportArray[0].Far;
864 break;
865
866 case GL_ACTIVE_STENCIL_FACE_EXT:
867 v->value_enum16 = ctx->Stencil.ActiveFace ? GL_BACK : GL_FRONT;
868 break;
869
870 case GL_STENCIL_FAIL:
871 v->value_enum16 = ctx->Stencil.FailFunc[ctx->Stencil.ActiveFace];
872 break;
873 case GL_STENCIL_FUNC:
874 v->value_enum16 = ctx->Stencil.Function[ctx->Stencil.ActiveFace];
875 break;
876 case GL_STENCIL_PASS_DEPTH_FAIL:
877 v->value_enum16 = ctx->Stencil.ZFailFunc[ctx->Stencil.ActiveFace];
878 break;
879 case GL_STENCIL_PASS_DEPTH_PASS:
880 v->value_enum16 = ctx->Stencil.ZPassFunc[ctx->Stencil.ActiveFace];
881 break;
882 case GL_STENCIL_REF:
883 v->value_int = _mesa_get_stencil_ref(ctx, ctx->Stencil.ActiveFace);
884 break;
885 case GL_STENCIL_BACK_REF:
886 v->value_int = _mesa_get_stencil_ref(ctx, 1);
887 break;
888 case GL_STENCIL_VALUE_MASK:
889 v->value_int = ctx->Stencil.ValueMask[ctx->Stencil.ActiveFace];
890 break;
891 case GL_STENCIL_WRITEMASK:
892 v->value_int = ctx->Stencil.WriteMask[ctx->Stencil.ActiveFace];
893 break;
894
895 case GL_NUM_EXTENSIONS:
896 v->value_int = _mesa_get_extension_count(ctx);
897 break;
898
899 case GL_IMPLEMENTATION_COLOR_READ_TYPE_OES:
900 v->value_int = _mesa_get_color_read_type(ctx, NULL, "glGetIntegerv");
901 break;
902 case GL_IMPLEMENTATION_COLOR_READ_FORMAT_OES:
903 v->value_int = _mesa_get_color_read_format(ctx, NULL, "glGetIntegerv");
904 break;
905
906 case GL_CURRENT_MATRIX_STACK_DEPTH_ARB:
907 v->value_int = ctx->CurrentStack->Depth + 1;
908 break;
909 case GL_CURRENT_MATRIX_ARB:
910 case GL_TRANSPOSE_CURRENT_MATRIX_ARB:
911 v->value_matrix = ctx->CurrentStack->Top;
912 break;
913
914 case GL_NUM_COMPRESSED_TEXTURE_FORMATS_ARB:
915 v->value_int = _mesa_get_compressed_formats(ctx, NULL);
916 break;
917 case GL_COMPRESSED_TEXTURE_FORMATS_ARB:
918 v->value_int_n.n =
919 _mesa_get_compressed_formats(ctx, v->value_int_n.ints);
920 assert(v->value_int_n.n <= (int) ARRAY_SIZE(v->value_int_n.ints));
921 break;
922
923 case GL_MAX_VARYING_FLOATS_ARB:
924 v->value_int = ctx->Const.MaxVarying * 4;
925 break;
926
927 /* Various object names */
928
929 case GL_TEXTURE_BINDING_1D:
930 case GL_TEXTURE_BINDING_2D:
931 case GL_TEXTURE_BINDING_3D:
932 case GL_TEXTURE_BINDING_1D_ARRAY_EXT:
933 case GL_TEXTURE_BINDING_2D_ARRAY_EXT:
934 case GL_TEXTURE_BINDING_CUBE_MAP_ARB:
935 case GL_TEXTURE_BINDING_RECTANGLE_NV:
936 case GL_TEXTURE_BINDING_EXTERNAL_OES:
937 case GL_TEXTURE_BINDING_CUBE_MAP_ARRAY:
938 case GL_TEXTURE_BINDING_2D_MULTISAMPLE:
939 case GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY:
940 unit = ctx->Texture.CurrentUnit;
941 v->value_int =
942 ctx->Texture.Unit[unit].CurrentTex[d->offset]->Name;
943 break;
944
945 /* GL_EXT_external_objects */
946 case GL_NUM_DEVICE_UUIDS_EXT:
947 v->value_int = 1;
948 break;
949 case GL_DRIVER_UUID_EXT:
950 _mesa_get_driver_uuid(ctx, v->value_int_4);
951 break;
952 case GL_DEVICE_UUID_EXT:
953 _mesa_get_device_uuid(ctx, v->value_int_4);
954 break;
955
956 /* GL_EXT_packed_float */
957 case GL_RGBA_SIGNED_COMPONENTS_EXT:
958 {
959 /* Note: we only check the 0th color attachment. */
960 const struct gl_renderbuffer *rb =
961 ctx->DrawBuffer->_ColorDrawBuffers[0];
962 if (rb && _mesa_is_format_signed(rb->Format)) {
963 /* Issue 17 of GL_EXT_packed_float: If a component (such as
964 * alpha) has zero bits, the component should not be considered
965 * signed and so the bit for the respective component should be
966 * zeroed.
967 */
968 GLint r_bits =
969 _mesa_get_format_bits(rb->Format, GL_RED_BITS);
970 GLint g_bits =
971 _mesa_get_format_bits(rb->Format, GL_GREEN_BITS);
972 GLint b_bits =
973 _mesa_get_format_bits(rb->Format, GL_BLUE_BITS);
974 GLint a_bits =
975 _mesa_get_format_bits(rb->Format, GL_ALPHA_BITS);
976 GLint l_bits =
977 _mesa_get_format_bits(rb->Format, GL_TEXTURE_LUMINANCE_SIZE);
978 GLint i_bits =
979 _mesa_get_format_bits(rb->Format, GL_TEXTURE_INTENSITY_SIZE);
980
981 v->value_int_4[0] = r_bits + l_bits + i_bits > 0;
982 v->value_int_4[1] = g_bits + l_bits + i_bits > 0;
983 v->value_int_4[2] = b_bits + l_bits + i_bits > 0;
984 v->value_int_4[3] = a_bits + i_bits > 0;
985 }
986 else {
987 v->value_int_4[0] =
988 v->value_int_4[1] =
989 v->value_int_4[2] =
990 v->value_int_4[3] = 0;
991 }
992 }
993 break;
994
995 /* GL_ARB_vertex_buffer_object */
996 case GL_VERTEX_ARRAY_BUFFER_BINDING_ARB:
997 case GL_NORMAL_ARRAY_BUFFER_BINDING_ARB:
998 case GL_COLOR_ARRAY_BUFFER_BINDING_ARB:
999 case GL_INDEX_ARRAY_BUFFER_BINDING_ARB:
1000 case GL_EDGE_FLAG_ARRAY_BUFFER_BINDING_ARB:
1001 case GL_SECONDARY_COLOR_ARRAY_BUFFER_BINDING_ARB:
1002 case GL_FOG_COORDINATE_ARRAY_BUFFER_BINDING_ARB:
1003 buffer_obj = (struct gl_buffer_object **)
1004 ((char *) ctx->Array.VAO + d->offset);
1005 v->value_int = (*buffer_obj) ? (*buffer_obj)->Name : 0;
1006 break;
1007 case GL_ARRAY_BUFFER_BINDING_ARB:
1008 buf = ctx->Array.ArrayBufferObj;
1009 v->value_int = buf ? buf->Name : 0;
1010 break;
1011 case GL_TEXTURE_COORD_ARRAY_BUFFER_BINDING_ARB:
1012 buf = ctx->Array.VAO->BufferBinding[VERT_ATTRIB_TEX(ctx->Array.ActiveTexture)].BufferObj;
1013 v->value_int = buf ? buf->Name : 0;
1014 break;
1015 case GL_ELEMENT_ARRAY_BUFFER_BINDING_ARB:
1016 buf = ctx->Array.VAO->IndexBufferObj;
1017 v->value_int = buf ? buf->Name : 0;
1018 break;
1019
1020 /* ARB_vertex_array_bgra */
1021 case GL_COLOR_ARRAY_SIZE:
1022 array = &ctx->Array.VAO->VertexAttrib[VERT_ATTRIB_COLOR0];
1023 v->value_int = array->Format.Format == GL_BGRA ? GL_BGRA : array->Format.Size;
1024 break;
1025 case GL_SECONDARY_COLOR_ARRAY_SIZE:
1026 array = &ctx->Array.VAO->VertexAttrib[VERT_ATTRIB_COLOR1];
1027 v->value_int = array->Format.Format == GL_BGRA ? GL_BGRA : array->Format.Size;
1028 break;
1029
1030 /* ARB_copy_buffer */
1031 case GL_COPY_READ_BUFFER:
1032 v->value_int = ctx->CopyReadBuffer ? ctx->CopyReadBuffer->Name : 0;
1033 break;
1034 case GL_COPY_WRITE_BUFFER:
1035 v->value_int = ctx->CopyWriteBuffer ? ctx->CopyWriteBuffer->Name : 0;
1036 break;
1037
1038 case GL_PIXEL_PACK_BUFFER_BINDING_EXT:
1039 v->value_int = ctx->Pack.BufferObj ? ctx->Pack.BufferObj->Name : 0;
1040 break;
1041 case GL_PIXEL_UNPACK_BUFFER_BINDING_EXT:
1042 v->value_int = ctx->Unpack.BufferObj ? ctx->Unpack.BufferObj->Name : 0;
1043 break;
1044 case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING:
1045 v->value_int = ctx->TransformFeedback.CurrentBuffer ?
1046 ctx->TransformFeedback.CurrentBuffer->Name : 0;
1047 break;
1048 case GL_TRANSFORM_FEEDBACK_BUFFER_PAUSED:
1049 v->value_int = ctx->TransformFeedback.CurrentObject->Paused;
1050 break;
1051 case GL_TRANSFORM_FEEDBACK_BUFFER_ACTIVE:
1052 v->value_int = ctx->TransformFeedback.CurrentObject->Active;
1053 break;
1054 case GL_TRANSFORM_FEEDBACK_BINDING:
1055 v->value_int = ctx->TransformFeedback.CurrentObject->Name;
1056 break;
1057 case GL_CURRENT_PROGRAM:
1058 /* The Changelog of the ARB_separate_shader_objects spec says:
1059 *
1060 * 24 25 Jul 2011 pbrown Remove the language erroneously deleting
1061 * CURRENT_PROGRAM. In the EXT extension, this
1062 * token was aliased to ACTIVE_PROGRAM_EXT, and
1063 * was used to indicate the last program set by
1064 * either ActiveProgramEXT or UseProgram. In
1065 * the ARB extension, the SSO active programs
1066 * are now program pipeline object state and
1067 * CURRENT_PROGRAM should still be used to query
1068 * the last program set by UseProgram (bug 7822).
1069 */
1070 v->value_int =
1071 ctx->Shader.ActiveProgram ? ctx->Shader.ActiveProgram->Name : 0;
1072 break;
1073 case GL_READ_FRAMEBUFFER_BINDING_EXT:
1074 v->value_int = ctx->ReadBuffer->Name;
1075 break;
1076 case GL_RENDERBUFFER_BINDING_EXT:
1077 v->value_int =
1078 ctx->CurrentRenderbuffer ? ctx->CurrentRenderbuffer->Name : 0;
1079 break;
1080 case GL_POINT_SIZE_ARRAY_BUFFER_BINDING_OES:
1081 buf = ctx->Array.VAO->BufferBinding[VERT_ATTRIB_POINT_SIZE].BufferObj;
1082 v->value_int = buf ? buf->Name : 0;
1083 break;
1084
1085 case GL_FOG_COLOR:
1086 if (_mesa_get_clamp_fragment_color(ctx, ctx->DrawBuffer))
1087 COPY_4FV(v->value_float_4, ctx->Fog.Color);
1088 else
1089 COPY_4FV(v->value_float_4, ctx->Fog.ColorUnclamped);
1090 break;
1091 case GL_COLOR_CLEAR_VALUE:
1092 if (_mesa_get_clamp_fragment_color(ctx, ctx->DrawBuffer)) {
1093 v->value_float_4[0] = CLAMP(ctx->Color.ClearColor.f[0], 0.0F, 1.0F);
1094 v->value_float_4[1] = CLAMP(ctx->Color.ClearColor.f[1], 0.0F, 1.0F);
1095 v->value_float_4[2] = CLAMP(ctx->Color.ClearColor.f[2], 0.0F, 1.0F);
1096 v->value_float_4[3] = CLAMP(ctx->Color.ClearColor.f[3], 0.0F, 1.0F);
1097 } else
1098 COPY_4FV(v->value_float_4, ctx->Color.ClearColor.f);
1099 break;
1100 case GL_BLEND_COLOR_EXT:
1101 if (_mesa_get_clamp_fragment_color(ctx, ctx->DrawBuffer))
1102 COPY_4FV(v->value_float_4, ctx->Color.BlendColor);
1103 else
1104 COPY_4FV(v->value_float_4, ctx->Color.BlendColorUnclamped);
1105 break;
1106 case GL_ALPHA_TEST_REF:
1107 if (_mesa_get_clamp_fragment_color(ctx, ctx->DrawBuffer))
1108 v->value_float = ctx->Color.AlphaRef;
1109 else
1110 v->value_float = ctx->Color.AlphaRefUnclamped;
1111 break;
1112 case GL_MAX_VERTEX_UNIFORM_VECTORS:
1113 v->value_int = ctx->Const.Program[MESA_SHADER_VERTEX].MaxUniformComponents / 4;
1114 break;
1115
1116 case GL_MAX_FRAGMENT_UNIFORM_VECTORS:
1117 v->value_int = ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxUniformComponents / 4;
1118 break;
1119
1120 /* GL_ARB_texture_buffer_object */
1121 case GL_TEXTURE_BUFFER_ARB:
1122 v->value_int = ctx->Texture.BufferObject ? ctx->Texture.BufferObject->Name : 0;
1123 break;
1124 case GL_TEXTURE_BINDING_BUFFER_ARB:
1125 unit = ctx->Texture.CurrentUnit;
1126 v->value_int =
1127 ctx->Texture.Unit[unit].CurrentTex[TEXTURE_BUFFER_INDEX]->Name;
1128 break;
1129 case GL_TEXTURE_BUFFER_DATA_STORE_BINDING_ARB:
1130 {
1131 struct gl_buffer_object *buf =
1132 ctx->Texture.Unit[ctx->Texture.CurrentUnit]
1133 .CurrentTex[TEXTURE_BUFFER_INDEX]->BufferObject;
1134 v->value_int = buf ? buf->Name : 0;
1135 }
1136 break;
1137 case GL_TEXTURE_BUFFER_FORMAT_ARB:
1138 v->value_int = ctx->Texture.Unit[ctx->Texture.CurrentUnit]
1139 .CurrentTex[TEXTURE_BUFFER_INDEX]->BufferObjectFormat;
1140 break;
1141
1142 /* GL_ARB_sampler_objects */
1143 case GL_SAMPLER_BINDING:
1144 {
1145 struct gl_sampler_object *samp =
1146 ctx->Texture.Unit[ctx->Texture.CurrentUnit].Sampler;
1147 v->value_int = samp ? samp->Name : 0;
1148 }
1149 break;
1150 /* GL_ARB_uniform_buffer_object */
1151 case GL_UNIFORM_BUFFER_BINDING:
1152 v->value_int = ctx->UniformBuffer ? ctx->UniformBuffer->Name : 0;
1153 break;
1154 /* GL_ARB_shader_storage_buffer_object */
1155 case GL_SHADER_STORAGE_BUFFER_BINDING:
1156 v->value_int = ctx->ShaderStorageBuffer ? ctx->ShaderStorageBuffer->Name : 0;
1157 break;
1158 /* GL_ARB_query_buffer_object */
1159 case GL_QUERY_BUFFER_BINDING:
1160 v->value_int = ctx->QueryBuffer ? ctx->QueryBuffer->Name : 0;
1161 break;
1162 /* GL_ARB_timer_query */
1163 case GL_TIMESTAMP:
1164 if (ctx->Driver.GetTimestamp) {
1165 v->value_int64 = ctx->Driver.GetTimestamp(ctx);
1166 }
1167 else {
1168 _mesa_problem(ctx, "driver doesn't implement GetTimestamp");
1169 }
1170 break;
1171 /* GL_KHR_DEBUG */
1172 case GL_DEBUG_OUTPUT:
1173 case GL_DEBUG_OUTPUT_SYNCHRONOUS:
1174 case GL_DEBUG_LOGGED_MESSAGES:
1175 case GL_DEBUG_NEXT_LOGGED_MESSAGE_LENGTH:
1176 case GL_DEBUG_GROUP_STACK_DEPTH:
1177 v->value_int = _mesa_get_debug_state_int(ctx, d->pname);
1178 break;
1179 /* GL_ARB_shader_atomic_counters */
1180 case GL_ATOMIC_COUNTER_BUFFER_BINDING:
1181 v->value_int = ctx->AtomicBuffer ? ctx->AtomicBuffer->Name : 0;
1182 break;
1183 /* GL 4.3 */
1184 case GL_NUM_SHADING_LANGUAGE_VERSIONS:
1185 v->value_int = _mesa_get_shading_language_version(ctx, -1, NULL);
1186 break;
1187 /* GL_ARB_draw_indirect */
1188 case GL_DRAW_INDIRECT_BUFFER_BINDING:
1189 v->value_int = ctx->DrawIndirectBuffer ? ctx->DrawIndirectBuffer->Name: 0;
1190 break;
1191 /* GL_ARB_indirect_parameters */
1192 case GL_PARAMETER_BUFFER_BINDING_ARB:
1193 v->value_int = ctx->ParameterBuffer ? ctx->ParameterBuffer->Name : 0;
1194 break;
1195 /* GL_ARB_separate_shader_objects */
1196 case GL_PROGRAM_PIPELINE_BINDING:
1197 if (ctx->Pipeline.Current) {
1198 v->value_int = ctx->Pipeline.Current->Name;
1199 } else {
1200 v->value_int = 0;
1201 }
1202 break;
1203 /* GL_ARB_compute_shader */
1204 case GL_DISPATCH_INDIRECT_BUFFER_BINDING:
1205 v->value_int = ctx->DispatchIndirectBuffer ?
1206 ctx->DispatchIndirectBuffer->Name : 0;
1207 break;
1208 /* GL_ARB_multisample */
1209 case GL_SAMPLES:
1210 v->value_int = _mesa_geometric_samples(ctx->DrawBuffer);
1211 break;
1212 case GL_SAMPLE_BUFFERS:
1213 v->value_int = _mesa_geometric_samples(ctx->DrawBuffer) > 0;
1214 break;
1215 /* GL_EXT_textrue_integer */
1216 case GL_RGBA_INTEGER_MODE_EXT:
1217 v->value_int = (ctx->DrawBuffer->_IntegerBuffers != 0);
1218 break;
1219 /* GL_ATI_meminfo & GL_NVX_gpu_memory_info */
1220 case GL_VBO_FREE_MEMORY_ATI:
1221 case GL_TEXTURE_FREE_MEMORY_ATI:
1222 case GL_RENDERBUFFER_FREE_MEMORY_ATI:
1223 case GL_GPU_MEMORY_INFO_DEDICATED_VIDMEM_NVX:
1224 case GL_GPU_MEMORY_INFO_TOTAL_AVAILABLE_MEMORY_NVX:
1225 case GL_GPU_MEMORY_INFO_CURRENT_AVAILABLE_VIDMEM_NVX:
1226 case GL_GPU_MEMORY_INFO_EVICTION_COUNT_NVX:
1227 case GL_GPU_MEMORY_INFO_EVICTED_MEMORY_NVX:
1228 {
1229 struct gl_memory_info info;
1230
1231 ctx->Driver.QueryMemoryInfo(ctx, &info);
1232
1233 if (d->pname == GL_GPU_MEMORY_INFO_DEDICATED_VIDMEM_NVX)
1234 v->value_int = info.total_device_memory;
1235 else if (d->pname == GL_GPU_MEMORY_INFO_TOTAL_AVAILABLE_MEMORY_NVX)
1236 v->value_int = info.total_device_memory +
1237 info.total_staging_memory;
1238 else if (d->pname == GL_GPU_MEMORY_INFO_CURRENT_AVAILABLE_VIDMEM_NVX)
1239 v->value_int = info.avail_device_memory;
1240 else if (d->pname == GL_GPU_MEMORY_INFO_EVICTION_COUNT_NVX)
1241 v->value_int = info.nr_device_memory_evictions;
1242 else if (d->pname == GL_GPU_MEMORY_INFO_EVICTED_MEMORY_NVX)
1243 v->value_int = info.device_memory_evicted;
1244 else {
1245 /* ATI free memory enums.
1246 *
1247 * Since the GPU memory is (usually) page-table based, every two
1248 * consecutive elements are equal. From the GL_ATI_meminfo
1249 * specification:
1250 *
1251 * "param[0] - total memory free in the pool
1252 * param[1] - largest available free block in the pool
1253 * param[2] - total auxiliary memory free
1254 * param[3] - largest auxiliary free block"
1255 *
1256 * All three (VBO, TEXTURE, RENDERBUFFER) queries return
1257 * the same numbers here.
1258 */
1259 v->value_int_4[0] = info.avail_device_memory;
1260 v->value_int_4[1] = info.avail_device_memory;
1261 v->value_int_4[2] = info.avail_staging_memory;
1262 v->value_int_4[3] = info.avail_staging_memory;
1263 }
1264 }
1265 break;
1266
1267 /* GL_ARB_get_program_binary */
1268 case GL_PROGRAM_BINARY_FORMATS:
1269 assert(ctx->Const.NumProgramBinaryFormats <= 1);
1270 v->value_int_n.n = MIN2(ctx->Const.NumProgramBinaryFormats, 1);
1271 if (ctx->Const.NumProgramBinaryFormats > 0) {
1272 v->value_int_n.ints[0] = GL_PROGRAM_BINARY_FORMAT_MESA;
1273 }
1274 break;
1275 /* ARB_spirv_extensions */
1276 case GL_NUM_SPIR_V_EXTENSIONS:
1277 v->value_int = _mesa_get_spirv_extension_count(ctx);
1278 break;
1279 /* GL_EXT_disjoint_timer_query */
1280 case GL_GPU_DISJOINT_EXT:
1281 {
1282 simple_mtx_lock(&ctx->Shared->Mutex);
1283 v->value_int = ctx->Shared->DisjointOperation;
1284 /* Reset state as expected by the spec. */
1285 ctx->Shared->DisjointOperation = false;
1286 simple_mtx_unlock(&ctx->Shared->Mutex);
1287 }
1288 break;
1289 /* GL_ARB_sample_locations */
1290 case GL_SAMPLE_LOCATION_SUBPIXEL_BITS_ARB:
1291 case GL_SAMPLE_LOCATION_PIXEL_GRID_WIDTH_ARB:
1292 case GL_SAMPLE_LOCATION_PIXEL_GRID_HEIGHT_ARB:
1293 {
1294 GLuint bits, width, height;
1295
1296 if (ctx->NewState & _NEW_BUFFERS)
1297 _mesa_update_state(ctx);
1298
1299 if (ctx->DrawBuffer->_Status != GL_FRAMEBUFFER_COMPLETE) {
1300 v->value_uint = 0;
1301 break;
1302 }
1303
1304 ctx->Driver.GetProgrammableSampleCaps(ctx, ctx->DrawBuffer,
1305 &bits, &width, &height);
1306
1307 if (d->pname == GL_SAMPLE_LOCATION_PIXEL_GRID_WIDTH_ARB)
1308 v->value_uint = width;
1309 else if (d->pname == GL_SAMPLE_LOCATION_PIXEL_GRID_HEIGHT_ARB)
1310 v->value_uint = height;
1311 else
1312 v->value_uint = bits;
1313 }
1314 break;
1315 case GL_PROGRAMMABLE_SAMPLE_LOCATION_TABLE_SIZE_ARB:
1316 v->value_uint = MAX_SAMPLE_LOCATION_TABLE_SIZE;
1317 break;
1318
1319 /* GL_AMD_framebuffer_multisample_advanced */
1320 case GL_SUPPORTED_MULTISAMPLE_MODES_AMD:
1321 v->value_int_n.n = ctx->Const.NumSupportedMultisampleModes * 3;
1322 memcpy(v->value_int_n.ints, ctx->Const.SupportedMultisampleModes,
1323 v->value_int_n.n * sizeof(GLint));
1324 break;
1325
1326 /* GL_NV_viewport_swizzle */
1327 case GL_VIEWPORT_SWIZZLE_X_NV:
1328 v->value_enum = ctx->ViewportArray[0].SwizzleX;
1329 break;
1330 case GL_VIEWPORT_SWIZZLE_Y_NV:
1331 v->value_enum = ctx->ViewportArray[0].SwizzleY;
1332 break;
1333 case GL_VIEWPORT_SWIZZLE_Z_NV:
1334 v->value_enum = ctx->ViewportArray[0].SwizzleZ;
1335 break;
1336 case GL_VIEWPORT_SWIZZLE_W_NV:
1337 v->value_enum = ctx->ViewportArray[0].SwizzleW;
1338 break;
1339 }
1340 }
1341
1342 /**
1343 * Check extra constraints on a struct value_desc descriptor
1344 *
1345 * If a struct value_desc has a non-NULL extra pointer, it means that
1346 * there are a number of extra constraints to check or actions to
1347 * perform. The extras is just an integer array where each integer
1348 * encode different constraints or actions.
1349 *
1350 * \param ctx current context
1351 * \param func name of calling glGet*v() function for error reporting
1352 * \param d the struct value_desc that has the extra constraints
1353 *
1354 * \return GL_FALSE if all of the constraints were not satisfied,
1355 * otherwise GL_TRUE.
1356 */
1357 static GLboolean
1358 check_extra(struct gl_context *ctx, const char *func, const struct value_desc *d)
1359 {
1360 const GLuint version = ctx->Version;
1361 GLboolean api_check = GL_FALSE;
1362 GLboolean api_found = GL_FALSE;
1363 const int *e;
1364
1365 for (e = d->extra; *e != EXTRA_END; e++) {
1366 switch (*e) {
1367 case EXTRA_VERSION_30:
1368 api_check = GL_TRUE;
1369 if (version >= 30)
1370 api_found = GL_TRUE;
1371 break;
1372 case EXTRA_VERSION_31:
1373 api_check = GL_TRUE;
1374 if (version >= 31)
1375 api_found = GL_TRUE;
1376 break;
1377 case EXTRA_VERSION_32:
1378 api_check = GL_TRUE;
1379 if (version >= 32)
1380 api_found = GL_TRUE;
1381 break;
1382 case EXTRA_VERSION_40:
1383 api_check = GL_TRUE;
1384 if (version >= 40)
1385 api_found = GL_TRUE;
1386 break;
1387 case EXTRA_VERSION_43:
1388 api_check = GL_TRUE;
1389 if (_mesa_is_desktop_gl(ctx) && version >= 43)
1390 api_found = GL_TRUE;
1391 break;
1392 case EXTRA_API_ES2:
1393 api_check = GL_TRUE;
1394 if (ctx->API == API_OPENGLES2)
1395 api_found = GL_TRUE;
1396 break;
1397 case EXTRA_API_ES3:
1398 api_check = GL_TRUE;
1399 if (_mesa_is_gles3(ctx))
1400 api_found = GL_TRUE;
1401 break;
1402 case EXTRA_API_ES31:
1403 api_check = GL_TRUE;
1404 if (_mesa_is_gles31(ctx))
1405 api_found = GL_TRUE;
1406 break;
1407 case EXTRA_API_ES32:
1408 api_check = GL_TRUE;
1409 if (_mesa_is_gles32(ctx))
1410 api_found = GL_TRUE;
1411 break;
1412 case EXTRA_API_GL:
1413 api_check = GL_TRUE;
1414 if (_mesa_is_desktop_gl(ctx))
1415 api_found = GL_TRUE;
1416 break;
1417 case EXTRA_API_GL_CORE:
1418 api_check = GL_TRUE;
1419 if (ctx->API == API_OPENGL_CORE)
1420 api_found = GL_TRUE;
1421 break;
1422 case EXTRA_NEW_BUFFERS:
1423 if (ctx->NewState & _NEW_BUFFERS)
1424 _mesa_update_state(ctx);
1425 break;
1426 case EXTRA_FLUSH_CURRENT:
1427 FLUSH_CURRENT(ctx, 0);
1428 break;
1429 case EXTRA_VALID_DRAW_BUFFER:
1430 if (d->pname - GL_DRAW_BUFFER0_ARB >= ctx->Const.MaxDrawBuffers) {
1431 _mesa_error(ctx, GL_INVALID_OPERATION, "%s(draw buffer %u)",
1432 func, d->pname - GL_DRAW_BUFFER0_ARB);
1433 return GL_FALSE;
1434 }
1435 break;
1436 case EXTRA_VALID_TEXTURE_UNIT:
1437 if (ctx->Texture.CurrentUnit >= ctx->Const.MaxTextureCoordUnits) {
1438 _mesa_error(ctx, GL_INVALID_OPERATION, "%s(texture %u)",
1439 func, ctx->Texture.CurrentUnit);
1440 return GL_FALSE;
1441 }
1442 break;
1443 case EXTRA_VALID_CLIP_DISTANCE:
1444 if (d->pname - GL_CLIP_DISTANCE0 >= ctx->Const.MaxClipPlanes) {
1445 _mesa_error(ctx, GL_INVALID_ENUM, "%s(clip distance %u)",
1446 func, d->pname - GL_CLIP_DISTANCE0);
1447 return GL_FALSE;
1448 }
1449 break;
1450 case EXTRA_GLSL_130:
1451 api_check = GL_TRUE;
1452 if (ctx->Const.GLSLVersion >= 130)
1453 api_found = GL_TRUE;
1454 break;
1455 case EXTRA_EXT_UBO_GS:
1456 api_check = GL_TRUE;
1457 if (ctx->Extensions.ARB_uniform_buffer_object &&
1458 _mesa_has_geometry_shaders(ctx))
1459 api_found = GL_TRUE;
1460 break;
1461 case EXTRA_EXT_ATOMICS_GS:
1462 api_check = GL_TRUE;
1463 if (ctx->Extensions.ARB_shader_atomic_counters &&
1464 _mesa_has_geometry_shaders(ctx))
1465 api_found = GL_TRUE;
1466 break;
1467 case EXTRA_EXT_SHADER_IMAGE_GS:
1468 api_check = GL_TRUE;
1469 if (ctx->Extensions.ARB_shader_image_load_store &&
1470 _mesa_has_geometry_shaders(ctx))
1471 api_found = GL_TRUE;
1472 break;
1473 case EXTRA_EXT_ATOMICS_TESS:
1474 api_check = GL_TRUE;
1475 api_found = ctx->Extensions.ARB_shader_atomic_counters &&
1476 _mesa_has_tessellation(ctx);
1477 break;
1478 case EXTRA_EXT_SHADER_IMAGE_TESS:
1479 api_check = GL_TRUE;
1480 api_found = ctx->Extensions.ARB_shader_image_load_store &&
1481 _mesa_has_tessellation(ctx);
1482 break;
1483 case EXTRA_EXT_SSBO_GS:
1484 api_check = GL_TRUE;
1485 if (ctx->Extensions.ARB_shader_storage_buffer_object &&
1486 _mesa_has_geometry_shaders(ctx))
1487 api_found = GL_TRUE;
1488 break;
1489 case EXTRA_EXT_FB_NO_ATTACH_GS:
1490 api_check = GL_TRUE;
1491 if (ctx->Extensions.ARB_framebuffer_no_attachments &&
1492 (_mesa_is_desktop_gl(ctx) ||
1493 _mesa_has_OES_geometry_shader(ctx)))
1494 api_found = GL_TRUE;
1495 break;
1496 case EXTRA_EXT_ES_GS:
1497 api_check = GL_TRUE;
1498 if (_mesa_has_OES_geometry_shader(ctx))
1499 api_found = GL_TRUE;
1500 break;
1501 case EXTRA_EXT_PROVOKING_VERTEX_32:
1502 api_check = GL_TRUE;
1503 if (ctx->API == API_OPENGL_COMPAT || version == 32)
1504 api_found = ctx->Extensions.EXT_provoking_vertex;
1505 break;
1506 case EXTRA_END:
1507 break;
1508 default: /* *e is a offset into the extension struct */
1509 api_check = GL_TRUE;
1510 if (*(GLboolean *) ((char *) &ctx->Extensions + *e))
1511 api_found = GL_TRUE;
1512 break;
1513 }
1514 }
1515
1516 if (api_check && !api_found) {
1517 _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func,
1518 _mesa_enum_to_string(d->pname));
1519 return GL_FALSE;
1520 }
1521
1522 return GL_TRUE;
1523 }
1524
1525 static const struct value_desc error_value =
1526 { 0, 0, TYPE_INVALID, NO_OFFSET, NO_EXTRA };
1527
1528 /**
1529 * Find the struct value_desc corresponding to the enum 'pname'.
1530 *
1531 * We hash the enum value to get an index into the 'table' array,
1532 * which holds the index in the 'values' array of struct value_desc.
1533 * Once we've found the entry, we do the extra checks, if any, then
1534 * look up the value and return a pointer to it.
1535 *
1536 * If the value has to be computed (for example, it's the result of a
1537 * function call or we need to add 1 to it), we use the tmp 'v' to
1538 * store the result.
1539 *
1540 * \param func name of glGet*v() func for error reporting
1541 * \param pname the enum value we're looking up
1542 * \param p is were we return the pointer to the value
1543 * \param v a tmp union value variable in the calling glGet*v() function
1544 *
1545 * \return the struct value_desc corresponding to the enum or a struct
1546 * value_desc of TYPE_INVALID if not found. This lets the calling
1547 * glGet*v() function jump right into a switch statement and
1548 * handle errors there instead of having to check for NULL.
1549 */
1550 static const struct value_desc *
1551 find_value(const char *func, GLenum pname, void **p, union value *v)
1552 {
1553 GET_CURRENT_CONTEXT(ctx);
1554 int mask, hash;
1555 const struct value_desc *d;
1556 int api;
1557
1558 *p = NULL;
1559
1560 api = ctx->API;
1561 /* We index into the table_set[] list of per-API hash tables using the API's
1562 * value in the gl_api enum. Since GLES 3 doesn't have an API_OPENGL* enum
1563 * value since it's compatible with GLES2 its entry in table_set[] is at the
1564 * end.
1565 */
1566 STATIC_ASSERT(ARRAY_SIZE(table_set) == API_OPENGL_LAST + 4);
1567 if (ctx->API == API_OPENGLES2) {
1568 if (ctx->Version >= 32)
1569 api = API_OPENGL_LAST + 3;
1570 else if (ctx->Version >= 31)
1571 api = API_OPENGL_LAST + 2;
1572 else if (ctx->Version >= 30)
1573 api = API_OPENGL_LAST + 1;
1574 }
1575 mask = ARRAY_SIZE(table(api)) - 1;
1576 hash = (pname * prime_factor);
1577 while (1) {
1578 int idx = table(api)[hash & mask];
1579
1580 /* If the enum isn't valid, the hash walk ends with index 0,
1581 * pointing to the first entry of values[] which doesn't hold
1582 * any valid enum. */
1583 if (unlikely(idx == 0)) {
1584 _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func,
1585 _mesa_enum_to_string(pname));
1586 return &error_value;
1587 }
1588
1589 d = &values[idx];
1590 if (likely(d->pname == pname))
1591 break;
1592
1593 hash += prime_step;
1594 }
1595
1596 if (unlikely(d->extra && !check_extra(ctx, func, d)))
1597 return &error_value;
1598
1599 switch (d->location) {
1600 case LOC_BUFFER:
1601 *p = ((char *) ctx->DrawBuffer + d->offset);
1602 return d;
1603 case LOC_CONTEXT:
1604 *p = ((char *) ctx + d->offset);
1605 return d;
1606 case LOC_ARRAY:
1607 *p = ((char *) ctx->Array.VAO + d->offset);
1608 return d;
1609 case LOC_TEXUNIT:
1610 if (ctx->Texture.CurrentUnit < ARRAY_SIZE(ctx->Texture.FixedFuncUnit)) {
1611 unsigned index = ctx->Texture.CurrentUnit;
1612 *p = ((char *)&ctx->Texture.FixedFuncUnit[index] + d->offset);
1613 return d;
1614 }
1615 _mesa_error(ctx, GL_INVALID_VALUE, "%s(pname=%s,unit=%d)", func,
1616 _mesa_enum_to_string(pname),
1617 ctx->Texture.CurrentUnit);
1618 return &error_value;
1619 case LOC_CUSTOM:
1620 find_custom_value(ctx, d, v);
1621 *p = v;
1622 return d;
1623 default:
1624 assert(0);
1625 break;
1626 }
1627
1628 /* silence warning */
1629 return &error_value;
1630 }
1631
1632 static const int transpose[] = {
1633 0, 4, 8, 12,
1634 1, 5, 9, 13,
1635 2, 6, 10, 14,
1636 3, 7, 11, 15
1637 };
1638
1639 static GLsizei
1640 get_value_size(enum value_type type, const union value *v)
1641 {
1642 switch (type) {
1643 case TYPE_INVALID:
1644 return 0;
1645 case TYPE_CONST:
1646 case TYPE_UINT:
1647 case TYPE_INT:
1648 return sizeof(GLint);
1649 case TYPE_INT_2:
1650 case TYPE_UINT_2:
1651 return sizeof(GLint) * 2;
1652 case TYPE_INT_3:
1653 case TYPE_UINT_3:
1654 return sizeof(GLint) * 3;
1655 case TYPE_INT_4:
1656 case TYPE_UINT_4:
1657 return sizeof(GLint) * 4;
1658 case TYPE_INT_N:
1659 return sizeof(GLint) * v->value_int_n.n;
1660 case TYPE_INT64:
1661 return sizeof(GLint64);
1662 break;
1663 case TYPE_ENUM16:
1664 return sizeof(GLenum16);
1665 case TYPE_ENUM:
1666 return sizeof(GLenum);
1667 case TYPE_ENUM_2:
1668 return sizeof(GLenum) * 2;
1669 case TYPE_BOOLEAN:
1670 return sizeof(GLboolean);
1671 case TYPE_UBYTE:
1672 return sizeof(GLubyte);
1673 case TYPE_SHORT:
1674 return sizeof(GLshort);
1675 case TYPE_BIT_0:
1676 case TYPE_BIT_1:
1677 case TYPE_BIT_2:
1678 case TYPE_BIT_3:
1679 case TYPE_BIT_4:
1680 case TYPE_BIT_5:
1681 case TYPE_BIT_6:
1682 case TYPE_BIT_7:
1683 return 1;
1684 case TYPE_FLOAT:
1685 case TYPE_FLOATN:
1686 return sizeof(GLfloat);
1687 case TYPE_FLOAT_2:
1688 case TYPE_FLOATN_2:
1689 return sizeof(GLfloat) * 2;
1690 case TYPE_FLOAT_3:
1691 case TYPE_FLOATN_3:
1692 return sizeof(GLfloat) * 3;
1693 case TYPE_FLOAT_4:
1694 case TYPE_FLOATN_4:
1695 return sizeof(GLfloat) * 4;
1696 case TYPE_FLOAT_8:
1697 return sizeof(GLfloat) * 8;
1698 case TYPE_DOUBLEN:
1699 return sizeof(GLdouble);
1700 case TYPE_DOUBLEN_2:
1701 return sizeof(GLdouble) * 2;
1702 case TYPE_MATRIX:
1703 return sizeof (GLfloat) * 16;
1704 case TYPE_MATRIX_T:
1705 return sizeof (GLfloat) * 16;
1706 default:
1707 return -1;
1708 }
1709 }
1710
1711 void GLAPIENTRY
1712 _mesa_GetBooleanv(GLenum pname, GLboolean *params)
1713 {
1714 const struct value_desc *d;
1715 union value v;
1716 GLmatrix *m;
1717 int shift, i;
1718 void *p;
1719
1720 d = find_value("glGetBooleanv", pname, &p, &v);
1721 switch (d->type) {
1722 case TYPE_INVALID:
1723 break;
1724 case TYPE_CONST:
1725 params[0] = INT_TO_BOOLEAN(d->offset);
1726 break;
1727
1728 case TYPE_FLOAT_8:
1729 params[7] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[7]);
1730 params[6] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[6]);
1731 params[5] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[5]);
1732 params[4] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[4]);
1733 case TYPE_FLOAT_4:
1734 case TYPE_FLOATN_4:
1735 params[3] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[3]);
1736 case TYPE_FLOAT_3:
1737 case TYPE_FLOATN_3:
1738 params[2] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[2]);
1739 case TYPE_FLOAT_2:
1740 case TYPE_FLOATN_2:
1741 params[1] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[1]);
1742 case TYPE_FLOAT:
1743 case TYPE_FLOATN:
1744 params[0] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[0]);
1745 break;
1746
1747 case TYPE_DOUBLEN_2:
1748 params[1] = FLOAT_TO_BOOLEAN(((GLdouble *) p)[1]);
1749 case TYPE_DOUBLEN:
1750 params[0] = FLOAT_TO_BOOLEAN(((GLdouble *) p)[0]);
1751 break;
1752
1753 case TYPE_INT_4:
1754 case TYPE_UINT_4:
1755 params[3] = INT_TO_BOOLEAN(((GLint *) p)[3]);
1756 case TYPE_INT_3:
1757 case TYPE_UINT_3:
1758 params[2] = INT_TO_BOOLEAN(((GLint *) p)[2]);
1759 case TYPE_INT_2:
1760 case TYPE_UINT_2:
1761 case TYPE_ENUM_2:
1762 params[1] = INT_TO_BOOLEAN(((GLint *) p)[1]);
1763 case TYPE_INT:
1764 case TYPE_UINT:
1765 case TYPE_ENUM:
1766 params[0] = INT_TO_BOOLEAN(((GLint *) p)[0]);
1767 break;
1768
1769 case TYPE_ENUM16:
1770 params[0] = INT_TO_BOOLEAN(((GLenum16 *) p)[0]);
1771 break;
1772
1773 case TYPE_INT_N:
1774 for (i = 0; i < v.value_int_n.n; i++)
1775 params[i] = INT_TO_BOOLEAN(v.value_int_n.ints[i]);
1776 break;
1777
1778 case TYPE_INT64:
1779 params[0] = INT64_TO_BOOLEAN(((GLint64 *) p)[0]);
1780 break;
1781
1782 case TYPE_BOOLEAN:
1783 params[0] = ((GLboolean*) p)[0];
1784 break;
1785
1786 case TYPE_UBYTE:
1787 params[0] = INT_TO_BOOLEAN(((GLubyte *) p)[0]);
1788 break;
1789
1790 case TYPE_SHORT:
1791 params[0] = INT_TO_BOOLEAN(((GLshort *) p)[0]);
1792 break;
1793
1794 case TYPE_MATRIX:
1795 m = *(GLmatrix **) p;
1796 for (i = 0; i < 16; i++)
1797 params[i] = FLOAT_TO_BOOLEAN(m->m[i]);
1798 break;
1799
1800 case TYPE_MATRIX_T:
1801 m = *(GLmatrix **) p;
1802 for (i = 0; i < 16; i++)
1803 params[i] = FLOAT_TO_BOOLEAN(m->m[transpose[i]]);
1804 break;
1805
1806 case TYPE_BIT_0:
1807 case TYPE_BIT_1:
1808 case TYPE_BIT_2:
1809 case TYPE_BIT_3:
1810 case TYPE_BIT_4:
1811 case TYPE_BIT_5:
1812 case TYPE_BIT_6:
1813 case TYPE_BIT_7:
1814 shift = d->type - TYPE_BIT_0;
1815 params[0] = (*(GLbitfield *) p >> shift) & 1;
1816 break;
1817 }
1818 }
1819
1820 void GLAPIENTRY
1821 _mesa_GetFloatv(GLenum pname, GLfloat *params)
1822 {
1823 const struct value_desc *d;
1824 union value v;
1825 GLmatrix *m;
1826 int shift, i;
1827 void *p;
1828
1829 d = find_value("glGetFloatv", pname, &p, &v);
1830 switch (d->type) {
1831 case TYPE_INVALID:
1832 break;
1833 case TYPE_CONST:
1834 params[0] = (GLfloat) d->offset;
1835 break;
1836
1837 case TYPE_FLOAT_8:
1838 params[7] = ((GLfloat *) p)[7];
1839 params[6] = ((GLfloat *) p)[6];
1840 params[5] = ((GLfloat *) p)[5];
1841 params[4] = ((GLfloat *) p)[4];
1842 case TYPE_FLOAT_4:
1843 case TYPE_FLOATN_4:
1844 params[3] = ((GLfloat *) p)[3];
1845 case TYPE_FLOAT_3:
1846 case TYPE_FLOATN_3:
1847 params[2] = ((GLfloat *) p)[2];
1848 case TYPE_FLOAT_2:
1849 case TYPE_FLOATN_2:
1850 params[1] = ((GLfloat *) p)[1];
1851 case TYPE_FLOAT:
1852 case TYPE_FLOATN:
1853 params[0] = ((GLfloat *) p)[0];
1854 break;
1855
1856 case TYPE_DOUBLEN_2:
1857 params[1] = (GLfloat) (((GLdouble *) p)[1]);
1858 case TYPE_DOUBLEN:
1859 params[0] = (GLfloat) (((GLdouble *) p)[0]);
1860 break;
1861
1862 case TYPE_INT_4:
1863 params[3] = (GLfloat) (((GLint *) p)[3]);
1864 case TYPE_INT_3:
1865 params[2] = (GLfloat) (((GLint *) p)[2]);
1866 case TYPE_INT_2:
1867 case TYPE_ENUM_2:
1868 params[1] = (GLfloat) (((GLint *) p)[1]);
1869 case TYPE_INT:
1870 case TYPE_ENUM:
1871 params[0] = (GLfloat) (((GLint *) p)[0]);
1872 break;
1873
1874 case TYPE_ENUM16:
1875 params[0] = (GLfloat) (((GLenum16 *) p)[0]);
1876 break;
1877
1878 case TYPE_INT_N:
1879 for (i = 0; i < v.value_int_n.n; i++)
1880 params[i] = (GLfloat) v.value_int_n.ints[i];
1881 break;
1882
1883 case TYPE_UINT_4:
1884 params[3] = (GLfloat) (((GLuint *) p)[3]);
1885 case TYPE_UINT_3:
1886 params[2] = (GLfloat) (((GLuint *) p)[2]);
1887 case TYPE_UINT_2:
1888 params[1] = (GLfloat) (((GLuint *) p)[1]);
1889 case TYPE_UINT:
1890 params[0] = (GLfloat) (((GLuint *) p)[0]);
1891 break;
1892
1893 case TYPE_INT64:
1894 params[0] = (GLfloat) (((GLint64 *) p)[0]);
1895 break;
1896
1897 case TYPE_BOOLEAN:
1898 params[0] = BOOLEAN_TO_FLOAT(*(GLboolean*) p);
1899 break;
1900
1901 case TYPE_UBYTE:
1902 params[0] = (GLfloat) ((GLubyte *) p)[0];
1903 break;
1904
1905 case TYPE_SHORT:
1906 params[0] = (GLfloat) ((GLshort *) p)[0];
1907 break;
1908
1909 case TYPE_MATRIX:
1910 m = *(GLmatrix **) p;
1911 for (i = 0; i < 16; i++)
1912 params[i] = m->m[i];
1913 break;
1914
1915 case TYPE_MATRIX_T:
1916 m = *(GLmatrix **) p;
1917 for (i = 0; i < 16; i++)
1918 params[i] = m->m[transpose[i]];
1919 break;
1920
1921 case TYPE_BIT_0:
1922 case TYPE_BIT_1:
1923 case TYPE_BIT_2:
1924 case TYPE_BIT_3:
1925 case TYPE_BIT_4:
1926 case TYPE_BIT_5:
1927 case TYPE_BIT_6:
1928 case TYPE_BIT_7:
1929 shift = d->type - TYPE_BIT_0;
1930 params[0] = BOOLEAN_TO_FLOAT((*(GLbitfield *) p >> shift) & 1);
1931 break;
1932 }
1933 }
1934
1935 void GLAPIENTRY
1936 _mesa_GetIntegerv(GLenum pname, GLint *params)
1937 {
1938 const struct value_desc *d;
1939 union value v;
1940 GLmatrix *m;
1941 int shift, i;
1942 void *p;
1943
1944 d = find_value("glGetIntegerv", pname, &p, &v);
1945 switch (d->type) {
1946 case TYPE_INVALID:
1947 break;
1948 case TYPE_CONST:
1949 params[0] = d->offset;
1950 break;
1951
1952 case TYPE_FLOAT_8:
1953 params[7] = lroundf(((GLfloat *) p)[7]);
1954 params[6] = lroundf(((GLfloat *) p)[6]);
1955 params[5] = lroundf(((GLfloat *) p)[5]);
1956 params[4] = lroundf(((GLfloat *) p)[4]);
1957 case TYPE_FLOAT_4:
1958 params[3] = lroundf(((GLfloat *) p)[3]);
1959 case TYPE_FLOAT_3:
1960 params[2] = lroundf(((GLfloat *) p)[2]);
1961 case TYPE_FLOAT_2:
1962 params[1] = lroundf(((GLfloat *) p)[1]);
1963 case TYPE_FLOAT:
1964 params[0] = lroundf(((GLfloat *) p)[0]);
1965 break;
1966
1967 case TYPE_FLOATN_4:
1968 params[3] = FLOAT_TO_INT(((GLfloat *) p)[3]);
1969 case TYPE_FLOATN_3:
1970 params[2] = FLOAT_TO_INT(((GLfloat *) p)[2]);
1971 case TYPE_FLOATN_2:
1972 params[1] = FLOAT_TO_INT(((GLfloat *) p)[1]);
1973 case TYPE_FLOATN:
1974 params[0] = FLOAT_TO_INT(((GLfloat *) p)[0]);
1975 break;
1976
1977 case TYPE_DOUBLEN_2:
1978 params[1] = FLOAT_TO_INT(((GLdouble *) p)[1]);
1979 case TYPE_DOUBLEN:
1980 params[0] = FLOAT_TO_INT(((GLdouble *) p)[0]);
1981 break;
1982
1983 case TYPE_INT_4:
1984 case TYPE_UINT_4:
1985 params[3] = ((GLint *) p)[3];
1986 case TYPE_INT_3:
1987 case TYPE_UINT_3:
1988 params[2] = ((GLint *) p)[2];
1989 case TYPE_INT_2:
1990 case TYPE_UINT_2:
1991 case TYPE_ENUM_2:
1992 params[1] = ((GLint *) p)[1];
1993 case TYPE_INT:
1994 case TYPE_UINT:
1995 case TYPE_ENUM:
1996 params[0] = ((GLint *) p)[0];
1997 break;
1998
1999 case TYPE_ENUM16:
2000 params[0] = ((GLenum16 *) p)[0];
2001 break;
2002
2003 case TYPE_INT_N:
2004 for (i = 0; i < v.value_int_n.n; i++)
2005 params[i] = v.value_int_n.ints[i];
2006 break;
2007
2008 case TYPE_INT64:
2009 params[0] = INT64_TO_INT(((GLint64 *) p)[0]);
2010 break;
2011
2012 case TYPE_BOOLEAN:
2013 params[0] = BOOLEAN_TO_INT(*(GLboolean*) p);
2014 break;
2015
2016 case TYPE_UBYTE:
2017 params[0] = ((GLubyte *) p)[0];
2018 break;
2019
2020 case TYPE_SHORT:
2021 params[0] = ((GLshort *) p)[0];
2022 break;
2023
2024 case TYPE_MATRIX:
2025 m = *(GLmatrix **) p;
2026 for (i = 0; i < 16; i++)
2027 params[i] = FLOAT_TO_INT(m->m[i]);
2028 break;
2029
2030 case TYPE_MATRIX_T:
2031 m = *(GLmatrix **) p;
2032 for (i = 0; i < 16; i++)
2033 params[i] = FLOAT_TO_INT(m->m[transpose[i]]);
2034 break;
2035
2036 case TYPE_BIT_0:
2037 case TYPE_BIT_1:
2038 case TYPE_BIT_2:
2039 case TYPE_BIT_3:
2040 case TYPE_BIT_4:
2041 case TYPE_BIT_5:
2042 case TYPE_BIT_6:
2043 case TYPE_BIT_7:
2044 shift = d->type - TYPE_BIT_0;
2045 params[0] = (*(GLbitfield *) p >> shift) & 1;
2046 break;
2047 }
2048 }
2049
2050 void GLAPIENTRY
2051 _mesa_GetInteger64v(GLenum pname, GLint64 *params)
2052 {
2053 const struct value_desc *d;
2054 union value v;
2055 GLmatrix *m;
2056 int shift, i;
2057 void *p;
2058
2059 d = find_value("glGetInteger64v", pname, &p, &v);
2060 switch (d->type) {
2061 case TYPE_INVALID:
2062 break;
2063 case TYPE_CONST:
2064 params[0] = d->offset;
2065 break;
2066
2067 case TYPE_FLOAT_8:
2068 params[7] = llround(((GLfloat *) p)[7]);
2069 params[6] = llround(((GLfloat *) p)[6]);
2070 params[5] = llround(((GLfloat *) p)[5]);
2071 params[4] = llround(((GLfloat *) p)[4]);
2072 case TYPE_FLOAT_4:
2073 params[3] = llround(((GLfloat *) p)[3]);
2074 case TYPE_FLOAT_3:
2075 params[2] = llround(((GLfloat *) p)[2]);
2076 case TYPE_FLOAT_2:
2077 params[1] = llround(((GLfloat *) p)[1]);
2078 case TYPE_FLOAT:
2079 params[0] = llround(((GLfloat *) p)[0]);
2080 break;
2081
2082 case TYPE_FLOATN_4:
2083 params[3] = FLOAT_TO_INT(((GLfloat *) p)[3]);
2084 case TYPE_FLOATN_3:
2085 params[2] = FLOAT_TO_INT(((GLfloat *) p)[2]);
2086 case TYPE_FLOATN_2:
2087 params[1] = FLOAT_TO_INT(((GLfloat *) p)[1]);
2088 case TYPE_FLOATN:
2089 params[0] = FLOAT_TO_INT(((GLfloat *) p)[0]);
2090 break;
2091
2092 case TYPE_DOUBLEN_2:
2093 params[1] = FLOAT_TO_INT(((GLdouble *) p)[1]);
2094 case TYPE_DOUBLEN:
2095 params[0] = FLOAT_TO_INT(((GLdouble *) p)[0]);
2096 break;
2097
2098 case TYPE_INT_4:
2099 params[3] = ((GLint *) p)[3];
2100 case TYPE_INT_3:
2101 params[2] = ((GLint *) p)[2];
2102 case TYPE_INT_2:
2103 case TYPE_ENUM_2:
2104 params[1] = ((GLint *) p)[1];
2105 case TYPE_INT:
2106 case TYPE_ENUM:
2107 params[0] = ((GLint *) p)[0];
2108 break;
2109
2110 case TYPE_ENUM16:
2111 params[0] = ((GLenum16 *) p)[0];
2112 break;
2113
2114 case TYPE_INT_N:
2115 for (i = 0; i < v.value_int_n.n; i++)
2116 params[i] = v.value_int_n.ints[i];
2117 break;
2118
2119 case TYPE_UINT_4:
2120 params[3] = ((GLuint *) p)[3];
2121 case TYPE_UINT_3:
2122 params[2] = ((GLuint *) p)[2];
2123 case TYPE_UINT_2:
2124 params[1] = ((GLuint *) p)[1];
2125 case TYPE_UINT:
2126 params[0] = ((GLuint *) p)[0];
2127 break;
2128
2129 case TYPE_INT64:
2130 params[0] = ((GLint64 *) p)[0];
2131 break;
2132
2133 case TYPE_BOOLEAN:
2134 params[0] = ((GLboolean*) p)[0];
2135 break;
2136
2137 case TYPE_MATRIX:
2138 m = *(GLmatrix **) p;
2139 for (i = 0; i < 16; i++)
2140 params[i] = FLOAT_TO_INT64(m->m[i]);
2141 break;
2142
2143 case TYPE_MATRIX_T:
2144 m = *(GLmatrix **) p;
2145 for (i = 0; i < 16; i++)
2146 params[i] = FLOAT_TO_INT64(m->m[transpose[i]]);
2147 break;
2148
2149 case TYPE_BIT_0:
2150 case TYPE_BIT_1:
2151 case TYPE_BIT_2:
2152 case TYPE_BIT_3:
2153 case TYPE_BIT_4:
2154 case TYPE_BIT_5:
2155 case TYPE_BIT_6:
2156 case TYPE_BIT_7:
2157 shift = d->type - TYPE_BIT_0;
2158 params[0] = (*(GLbitfield *) p >> shift) & 1;
2159 break;
2160 }
2161 }
2162
2163 void GLAPIENTRY
2164 _mesa_GetDoublev(GLenum pname, GLdouble *params)
2165 {
2166 const struct value_desc *d;
2167 union value v;
2168 GLmatrix *m;
2169 int shift, i;
2170 void *p;
2171
2172 d = find_value("glGetDoublev", pname, &p, &v);
2173 switch (d->type) {
2174 case TYPE_INVALID:
2175 break;
2176 case TYPE_CONST:
2177 params[0] = d->offset;
2178 break;
2179
2180 case TYPE_FLOAT_8:
2181 params[7] = ((GLfloat *) p)[7];
2182 params[6] = ((GLfloat *) p)[6];
2183 params[5] = ((GLfloat *) p)[5];
2184 params[4] = ((GLfloat *) p)[4];
2185 case TYPE_FLOAT_4:
2186 case TYPE_FLOATN_4:
2187 params[3] = ((GLfloat *) p)[3];
2188 case TYPE_FLOAT_3:
2189 case TYPE_FLOATN_3:
2190 params[2] = ((GLfloat *) p)[2];
2191 case TYPE_FLOAT_2:
2192 case TYPE_FLOATN_2:
2193 params[1] = ((GLfloat *) p)[1];
2194 case TYPE_FLOAT:
2195 case TYPE_FLOATN:
2196 params[0] = ((GLfloat *) p)[0];
2197 break;
2198
2199 case TYPE_DOUBLEN_2:
2200 params[1] = ((GLdouble *) p)[1];
2201 case TYPE_DOUBLEN:
2202 params[0] = ((GLdouble *) p)[0];
2203 break;
2204
2205 case TYPE_INT_4:
2206 params[3] = ((GLint *) p)[3];
2207 case TYPE_INT_3:
2208 params[2] = ((GLint *) p)[2];
2209 case TYPE_INT_2:
2210 case TYPE_ENUM_2:
2211 params[1] = ((GLint *) p)[1];
2212 case TYPE_INT:
2213 case TYPE_ENUM:
2214 params[0] = ((GLint *) p)[0];
2215 break;
2216
2217 case TYPE_ENUM16:
2218 params[0] = ((GLenum16 *) p)[0];
2219 break;
2220
2221 case TYPE_INT_N:
2222 for (i = 0; i < v.value_int_n.n; i++)
2223 params[i] = v.value_int_n.ints[i];
2224 break;
2225
2226 case TYPE_UINT_4:
2227 params[3] = ((GLuint *) p)[3];
2228 case TYPE_UINT_3:
2229 params[2] = ((GLuint *) p)[2];
2230 case TYPE_UINT_2:
2231 params[1] = ((GLuint *) p)[1];
2232 case TYPE_UINT:
2233 params[0] = ((GLuint *) p)[0];
2234 break;
2235
2236 case TYPE_INT64:
2237 params[0] = (GLdouble) (((GLint64 *) p)[0]);
2238 break;
2239
2240 case TYPE_BOOLEAN:
2241 params[0] = *(GLboolean*) p;
2242 break;
2243
2244 case TYPE_UBYTE:
2245 params[0] = ((GLubyte *) p)[0];
2246 break;
2247
2248 case TYPE_SHORT:
2249 params[0] = ((GLshort *) p)[0];
2250 break;
2251
2252 case TYPE_MATRIX:
2253 m = *(GLmatrix **) p;
2254 for (i = 0; i < 16; i++)
2255 params[i] = m->m[i];
2256 break;
2257
2258 case TYPE_MATRIX_T:
2259 m = *(GLmatrix **) p;
2260 for (i = 0; i < 16; i++)
2261 params[i] = m->m[transpose[i]];
2262 break;
2263
2264 case TYPE_BIT_0:
2265 case TYPE_BIT_1:
2266 case TYPE_BIT_2:
2267 case TYPE_BIT_3:
2268 case TYPE_BIT_4:
2269 case TYPE_BIT_5:
2270 case TYPE_BIT_6:
2271 case TYPE_BIT_7:
2272 shift = d->type - TYPE_BIT_0;
2273 params[0] = (*(GLbitfield *) p >> shift) & 1;
2274 break;
2275 }
2276 }
2277
2278 void GLAPIENTRY
2279 _mesa_GetUnsignedBytevEXT(GLenum pname, GLubyte *data)
2280 {
2281 const struct value_desc *d;
2282 union value v;
2283 int shift;
2284 void *p = NULL;
2285 GLsizei size;
2286 const char *func = "glGetUnsignedBytevEXT";
2287
2288 GET_CURRENT_CONTEXT(ctx);
2289
2290 if (!ctx->Extensions.EXT_memory_object) {
2291 _mesa_error(ctx, GL_INVALID_OPERATION, "%s(unsupported)", func);
2292 return;
2293 }
2294
2295 d = find_value(func, pname, &p, &v);
2296 size = get_value_size(d->type, &v);
2297 if (size <= 0) {
2298 _mesa_problem(ctx, "invalid value type in GetUnsignedBytevEXT()");
2299 }
2300
2301 switch (d->type) {
2302 case TYPE_BIT_0:
2303 case TYPE_BIT_1:
2304 case TYPE_BIT_2:
2305 case TYPE_BIT_3:
2306 case TYPE_BIT_4:
2307 case TYPE_BIT_5:
2308 case TYPE_BIT_6:
2309 case TYPE_BIT_7:
2310 shift = d->type - TYPE_BIT_0;
2311 data[0] = (*(GLbitfield *) p >> shift) & 1;
2312 break;
2313 case TYPE_CONST:
2314 memcpy(data, &d->offset, size);
2315 break;
2316 case TYPE_INT_N:
2317 memcpy(data, &v.value_int_n.ints, size);
2318 break;
2319 case TYPE_UINT:
2320 case TYPE_INT:
2321 case TYPE_INT_2:
2322 case TYPE_UINT_2:
2323 case TYPE_INT_3:
2324 case TYPE_UINT_3:
2325 case TYPE_INT_4:
2326 case TYPE_UINT_4:
2327 case TYPE_INT64:
2328 case TYPE_ENUM:
2329 case TYPE_ENUM_2:
2330 case TYPE_BOOLEAN:
2331 case TYPE_UBYTE:
2332 case TYPE_SHORT:
2333 case TYPE_FLOAT:
2334 case TYPE_FLOATN:
2335 case TYPE_FLOAT_2:
2336 case TYPE_FLOATN_2:
2337 case TYPE_FLOAT_3:
2338 case TYPE_FLOATN_3:
2339 case TYPE_FLOAT_4:
2340 case TYPE_FLOATN_4:
2341 case TYPE_FLOAT_8:
2342 case TYPE_DOUBLEN:
2343 case TYPE_DOUBLEN_2:
2344 case TYPE_MATRIX:
2345 case TYPE_MATRIX_T:
2346 memcpy(data, p, size);
2347 break;
2348 case TYPE_ENUM16: {
2349 GLenum e = *(GLenum16 *)p;
2350 memcpy(data, &e, sizeof(e));
2351 break;
2352 }
2353 default:
2354 break; /* nothing - GL error was recorded */
2355 }
2356 }
2357
2358 /**
2359 * Convert a GL texture binding enum such as GL_TEXTURE_BINDING_2D
2360 * into the corresponding Mesa texture target index.
2361 * \return TEXTURE_x_INDEX or -1 if binding is invalid
2362 */
2363 static int
2364 tex_binding_to_index(const struct gl_context *ctx, GLenum binding)
2365 {
2366 switch (binding) {
2367 case GL_TEXTURE_BINDING_1D:
2368 return _mesa_is_desktop_gl(ctx) ? TEXTURE_1D_INDEX : -1;
2369 case GL_TEXTURE_BINDING_2D:
2370 return TEXTURE_2D_INDEX;
2371 case GL_TEXTURE_BINDING_3D:
2372 return ctx->API != API_OPENGLES ? TEXTURE_3D_INDEX : -1;
2373 case GL_TEXTURE_BINDING_CUBE_MAP:
2374 return ctx->Extensions.ARB_texture_cube_map
2375 ? TEXTURE_CUBE_INDEX : -1;
2376 case GL_TEXTURE_BINDING_RECTANGLE:
2377 return _mesa_is_desktop_gl(ctx) && ctx->Extensions.NV_texture_rectangle
2378 ? TEXTURE_RECT_INDEX : -1;
2379 case GL_TEXTURE_BINDING_1D_ARRAY:
2380 return _mesa_is_desktop_gl(ctx) && ctx->Extensions.EXT_texture_array
2381 ? TEXTURE_1D_ARRAY_INDEX : -1;
2382 case GL_TEXTURE_BINDING_2D_ARRAY:
2383 return (_mesa_is_desktop_gl(ctx) && ctx->Extensions.EXT_texture_array)
2384 || _mesa_is_gles3(ctx)
2385 ? TEXTURE_2D_ARRAY_INDEX : -1;
2386 case GL_TEXTURE_BINDING_BUFFER:
2387 return (_mesa_has_ARB_texture_buffer_object(ctx) ||
2388 _mesa_has_OES_texture_buffer(ctx)) ?
2389 TEXTURE_BUFFER_INDEX : -1;
2390 case GL_TEXTURE_BINDING_CUBE_MAP_ARRAY:
2391 return _mesa_has_texture_cube_map_array(ctx)
2392 ? TEXTURE_CUBE_ARRAY_INDEX : -1;
2393 case GL_TEXTURE_BINDING_2D_MULTISAMPLE:
2394 return _mesa_is_desktop_gl(ctx) && ctx->Extensions.ARB_texture_multisample
2395 ? TEXTURE_2D_MULTISAMPLE_INDEX : -1;
2396 case GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY:
2397 return _mesa_is_desktop_gl(ctx) && ctx->Extensions.ARB_texture_multisample
2398 ? TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX : -1;
2399 default:
2400 return -1;
2401 }
2402 }
2403
2404 static enum value_type
2405 find_value_indexed(const char *func, GLenum pname, GLuint index, union value *v)
2406 {
2407 GET_CURRENT_CONTEXT(ctx);
2408 struct gl_buffer_object *buf;
2409
2410 switch (pname) {
2411
2412 case GL_BLEND:
2413 if (index >= ctx->Const.MaxDrawBuffers)
2414 goto invalid_value;
2415 if (!ctx->Extensions.EXT_draw_buffers2)
2416 goto invalid_enum;
2417 v->value_int = (ctx->Color.BlendEnabled >> index) & 1;
2418 return TYPE_INT;
2419
2420 case GL_BLEND_SRC:
2421 /* fall-through */
2422 case GL_BLEND_SRC_RGB:
2423 if (index >= ctx->Const.MaxDrawBuffers)
2424 goto invalid_value;
2425 if (!ctx->Extensions.ARB_draw_buffers_blend)
2426 goto invalid_enum;
2427 v->value_int = ctx->Color.Blend[index].SrcRGB;
2428 return TYPE_INT;
2429 case GL_BLEND_SRC_ALPHA:
2430 if (index >= ctx->Const.MaxDrawBuffers)
2431 goto invalid_value;
2432 if (!ctx->Extensions.ARB_draw_buffers_blend)
2433 goto invalid_enum;
2434 v->value_int = ctx->Color.Blend[index].SrcA;
2435 return TYPE_INT;
2436 case GL_BLEND_DST:
2437 /* fall-through */
2438 case GL_BLEND_DST_RGB:
2439 if (index >= ctx->Const.MaxDrawBuffers)
2440 goto invalid_value;
2441 if (!ctx->Extensions.ARB_draw_buffers_blend)
2442 goto invalid_enum;
2443 v->value_int = ctx->Color.Blend[index].DstRGB;
2444 return TYPE_INT;
2445 case GL_BLEND_DST_ALPHA:
2446 if (index >= ctx->Const.MaxDrawBuffers)
2447 goto invalid_value;
2448 if (!ctx->Extensions.ARB_draw_buffers_blend)
2449 goto invalid_enum;
2450 v->value_int = ctx->Color.Blend[index].DstA;
2451 return TYPE_INT;
2452 case GL_BLEND_EQUATION_RGB:
2453 if (index >= ctx->Const.MaxDrawBuffers)
2454 goto invalid_value;
2455 if (!ctx->Extensions.ARB_draw_buffers_blend)
2456 goto invalid_enum;
2457 v->value_int = ctx->Color.Blend[index].EquationRGB;
2458 return TYPE_INT;
2459 case GL_BLEND_EQUATION_ALPHA:
2460 if (index >= ctx->Const.MaxDrawBuffers)
2461 goto invalid_value;
2462 if (!ctx->Extensions.ARB_draw_buffers_blend)
2463 goto invalid_enum;
2464 v->value_int = ctx->Color.Blend[index].EquationA;
2465 return TYPE_INT;
2466
2467 case GL_COLOR_WRITEMASK:
2468 if (index >= ctx->Const.MaxDrawBuffers)
2469 goto invalid_value;
2470 if (!ctx->Extensions.EXT_draw_buffers2)
2471 goto invalid_enum;
2472 v->value_int_4[0] = GET_COLORMASK_BIT(ctx->Color.ColorMask, index, 0);
2473 v->value_int_4[1] = GET_COLORMASK_BIT(ctx->Color.ColorMask, index, 1);
2474 v->value_int_4[2] = GET_COLORMASK_BIT(ctx->Color.ColorMask, index, 2);
2475 v->value_int_4[3] = GET_COLORMASK_BIT(ctx->Color.ColorMask, index, 3);
2476 return TYPE_INT_4;
2477
2478 case GL_SCISSOR_BOX:
2479 if (index >= ctx->Const.MaxViewports)
2480 goto invalid_value;
2481 v->value_int_4[0] = ctx->Scissor.ScissorArray[index].X;
2482 v->value_int_4[1] = ctx->Scissor.ScissorArray[index].Y;
2483 v->value_int_4[2] = ctx->Scissor.ScissorArray[index].Width;
2484 v->value_int_4[3] = ctx->Scissor.ScissorArray[index].Height;
2485 return TYPE_INT_4;
2486
2487 case GL_WINDOW_RECTANGLE_EXT:
2488 if (!ctx->Extensions.EXT_window_rectangles)
2489 goto invalid_enum;
2490 if (index >= ctx->Const.MaxWindowRectangles)
2491 goto invalid_value;
2492 v->value_int_4[0] = ctx->Scissor.WindowRects[index].X;
2493 v->value_int_4[1] = ctx->Scissor.WindowRects[index].Y;
2494 v->value_int_4[2] = ctx->Scissor.WindowRects[index].Width;
2495 v->value_int_4[3] = ctx->Scissor.WindowRects[index].Height;
2496 return TYPE_INT_4;
2497
2498 case GL_VIEWPORT:
2499 if (index >= ctx->Const.MaxViewports)
2500 goto invalid_value;
2501 v->value_float_4[0] = ctx->ViewportArray[index].X;
2502 v->value_float_4[1] = ctx->ViewportArray[index].Y;
2503 v->value_float_4[2] = ctx->ViewportArray[index].Width;
2504 v->value_float_4[3] = ctx->ViewportArray[index].Height;
2505 return TYPE_FLOAT_4;
2506
2507 case GL_DEPTH_RANGE:
2508 if (index >= ctx->Const.MaxViewports)
2509 goto invalid_value;
2510 v->value_double_2[0] = ctx->ViewportArray[index].Near;
2511 v->value_double_2[1] = ctx->ViewportArray[index].Far;
2512 return TYPE_DOUBLEN_2;
2513
2514 case GL_TRANSFORM_FEEDBACK_BUFFER_START:
2515 if (index >= ctx->Const.MaxTransformFeedbackBuffers)
2516 goto invalid_value;
2517 if (!ctx->Extensions.EXT_transform_feedback)
2518 goto invalid_enum;
2519 v->value_int64 = ctx->TransformFeedback.CurrentObject->Offset[index];
2520 return TYPE_INT64;
2521
2522 case GL_TRANSFORM_FEEDBACK_BUFFER_SIZE:
2523 if (index >= ctx->Const.MaxTransformFeedbackBuffers)
2524 goto invalid_value;
2525 if (!ctx->Extensions.EXT_transform_feedback)
2526 goto invalid_enum;
2527 v->value_int64
2528 = ctx->TransformFeedback.CurrentObject->RequestedSize[index];
2529 return TYPE_INT64;
2530
2531 case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING:
2532 if (index >= ctx->Const.MaxTransformFeedbackBuffers)
2533 goto invalid_value;
2534 if (!ctx->Extensions.EXT_transform_feedback)
2535 goto invalid_enum;
2536 v->value_int = ctx->TransformFeedback.CurrentObject->BufferNames[index];
2537 return TYPE_INT;
2538
2539 case GL_UNIFORM_BUFFER_BINDING:
2540 if (index >= ctx->Const.MaxUniformBufferBindings)
2541 goto invalid_value;
2542 if (!ctx->Extensions.ARB_uniform_buffer_object)
2543 goto invalid_enum;
2544 buf = ctx->UniformBufferBindings[index].BufferObject;
2545 v->value_int = buf ? buf->Name : 0;
2546 return TYPE_INT;
2547
2548 case GL_UNIFORM_BUFFER_START:
2549 if (index >= ctx->Const.MaxUniformBufferBindings)
2550 goto invalid_value;
2551 if (!ctx->Extensions.ARB_uniform_buffer_object)
2552 goto invalid_enum;
2553 v->value_int = ctx->UniformBufferBindings[index].Offset < 0 ? 0 :
2554 ctx->UniformBufferBindings[index].Offset;
2555 return TYPE_INT;
2556
2557 case GL_UNIFORM_BUFFER_SIZE:
2558 if (index >= ctx->Const.MaxUniformBufferBindings)
2559 goto invalid_value;
2560 if (!ctx->Extensions.ARB_uniform_buffer_object)
2561 goto invalid_enum;
2562 v->value_int = ctx->UniformBufferBindings[index].Size < 0 ? 0 :
2563 ctx->UniformBufferBindings[index].Size;
2564 return TYPE_INT;
2565
2566 /* ARB_shader_storage_buffer_object */
2567 case GL_SHADER_STORAGE_BUFFER_BINDING:
2568 if (!ctx->Extensions.ARB_shader_storage_buffer_object)
2569 goto invalid_enum;
2570 if (index >= ctx->Const.MaxShaderStorageBufferBindings)
2571 goto invalid_value;
2572 buf = ctx->ShaderStorageBufferBindings[index].BufferObject;
2573 v->value_int = buf ? buf->Name : 0;
2574 return TYPE_INT;
2575
2576 case GL_SHADER_STORAGE_BUFFER_START:
2577 if (!ctx->Extensions.ARB_shader_storage_buffer_object)
2578 goto invalid_enum;
2579 if (index >= ctx->Const.MaxShaderStorageBufferBindings)
2580 goto invalid_value;
2581 v->value_int = ctx->ShaderStorageBufferBindings[index].Offset < 0 ? 0 :
2582 ctx->ShaderStorageBufferBindings[index].Offset;
2583 return TYPE_INT;
2584
2585 case GL_SHADER_STORAGE_BUFFER_SIZE:
2586 if (!ctx->Extensions.ARB_shader_storage_buffer_object)
2587 goto invalid_enum;
2588 if (index >= ctx->Const.MaxShaderStorageBufferBindings)
2589 goto invalid_value;
2590 v->value_int = ctx->ShaderStorageBufferBindings[index].Size < 0 ? 0 :
2591 ctx->ShaderStorageBufferBindings[index].Size;
2592 return TYPE_INT;
2593
2594 /* ARB_texture_multisample / GL3.2 */
2595 case GL_SAMPLE_MASK_VALUE:
2596 if (index != 0)
2597 goto invalid_value;
2598 if (!ctx->Extensions.ARB_texture_multisample)
2599 goto invalid_enum;
2600 v->value_int = ctx->Multisample.SampleMaskValue;
2601 return TYPE_INT;
2602
2603 case GL_ATOMIC_COUNTER_BUFFER_BINDING:
2604 if (!ctx->Extensions.ARB_shader_atomic_counters)
2605 goto invalid_enum;
2606 if (index >= ctx->Const.MaxAtomicBufferBindings)
2607 goto invalid_value;
2608 buf = ctx->AtomicBufferBindings[index].BufferObject;
2609 v->value_int = buf ? buf->Name : 0;
2610 return TYPE_INT;
2611
2612 case GL_ATOMIC_COUNTER_BUFFER_START:
2613 if (!ctx->Extensions.ARB_shader_atomic_counters)
2614 goto invalid_enum;
2615 if (index >= ctx->Const.MaxAtomicBufferBindings)
2616 goto invalid_value;
2617 v->value_int64 = ctx->AtomicBufferBindings[index].Offset < 0 ? 0 :
2618 ctx->AtomicBufferBindings[index].Offset;
2619 return TYPE_INT64;
2620
2621 case GL_ATOMIC_COUNTER_BUFFER_SIZE:
2622 if (!ctx->Extensions.ARB_shader_atomic_counters)
2623 goto invalid_enum;
2624 if (index >= ctx->Const.MaxAtomicBufferBindings)
2625 goto invalid_value;
2626 v->value_int64 = ctx->AtomicBufferBindings[index].Size < 0 ? 0 :
2627 ctx->AtomicBufferBindings[index].Size;
2628 return TYPE_INT64;
2629
2630 case GL_VERTEX_BINDING_DIVISOR:
2631 if ((!_mesa_is_desktop_gl(ctx) || !ctx->Extensions.ARB_instanced_arrays) &&
2632 !_mesa_is_gles31(ctx))
2633 goto invalid_enum;
2634 if (index >= ctx->Const.Program[MESA_SHADER_VERTEX].MaxAttribs)
2635 goto invalid_value;
2636 v->value_int = ctx->Array.VAO->BufferBinding[VERT_ATTRIB_GENERIC(index)].InstanceDivisor;
2637 return TYPE_INT;
2638
2639 case GL_VERTEX_BINDING_OFFSET:
2640 if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles31(ctx))
2641 goto invalid_enum;
2642 if (index >= ctx->Const.Program[MESA_SHADER_VERTEX].MaxAttribs)
2643 goto invalid_value;
2644 v->value_int = ctx->Array.VAO->BufferBinding[VERT_ATTRIB_GENERIC(index)].Offset;
2645 return TYPE_INT;
2646
2647 case GL_VERTEX_BINDING_STRIDE:
2648 if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles31(ctx))
2649 goto invalid_enum;
2650 if (index >= ctx->Const.Program[MESA_SHADER_VERTEX].MaxAttribs)
2651 goto invalid_value;
2652 v->value_int = ctx->Array.VAO->BufferBinding[VERT_ATTRIB_GENERIC(index)].Stride;
2653 return TYPE_INT;
2654
2655 case GL_VERTEX_BINDING_BUFFER:
2656 if (ctx->API == API_OPENGLES2 && ctx->Version < 31)
2657 goto invalid_enum;
2658 if (index >= ctx->Const.Program[MESA_SHADER_VERTEX].MaxAttribs)
2659 goto invalid_value;
2660 buf = ctx->Array.VAO->BufferBinding[VERT_ATTRIB_GENERIC(index)].BufferObj;
2661 v->value_int = buf ? buf->Name : 0;
2662 return TYPE_INT;
2663
2664 /* ARB_shader_image_load_store */
2665 case GL_IMAGE_BINDING_NAME: {
2666 struct gl_texture_object *t;
2667
2668 if (!ctx->Extensions.ARB_shader_image_load_store)
2669 goto invalid_enum;
2670 if (index >= ctx->Const.MaxImageUnits)
2671 goto invalid_value;
2672
2673 t = ctx->ImageUnits[index].TexObj;
2674 v->value_int = (t ? t->Name : 0);
2675 return TYPE_INT;
2676 }
2677
2678 case GL_IMAGE_BINDING_LEVEL:
2679 if (!ctx->Extensions.ARB_shader_image_load_store)
2680 goto invalid_enum;
2681 if (index >= ctx->Const.MaxImageUnits)
2682 goto invalid_value;
2683
2684 v->value_int = ctx->ImageUnits[index].Level;
2685 return TYPE_INT;
2686
2687 case GL_IMAGE_BINDING_LAYERED:
2688 if (!ctx->Extensions.ARB_shader_image_load_store)
2689 goto invalid_enum;
2690 if (index >= ctx->Const.MaxImageUnits)
2691 goto invalid_value;
2692
2693 v->value_int = ctx->ImageUnits[index].Layered;
2694 return TYPE_INT;
2695
2696 case GL_IMAGE_BINDING_LAYER:
2697 if (!ctx->Extensions.ARB_shader_image_load_store)
2698 goto invalid_enum;
2699 if (index >= ctx->Const.MaxImageUnits)
2700 goto invalid_value;
2701
2702 v->value_int = ctx->ImageUnits[index].Layer;
2703 return TYPE_INT;
2704
2705 case GL_IMAGE_BINDING_ACCESS:
2706 if (!ctx->Extensions.ARB_shader_image_load_store)
2707 goto invalid_enum;
2708 if (index >= ctx->Const.MaxImageUnits)
2709 goto invalid_value;
2710
2711 v->value_int = ctx->ImageUnits[index].Access;
2712 return TYPE_INT;
2713
2714 case GL_IMAGE_BINDING_FORMAT:
2715 if (!ctx->Extensions.ARB_shader_image_load_store)
2716 goto invalid_enum;
2717 if (index >= ctx->Const.MaxImageUnits)
2718 goto invalid_value;
2719
2720 v->value_int = ctx->ImageUnits[index].Format;
2721 return TYPE_INT;
2722
2723 /* ARB_direct_state_access */
2724 case GL_TEXTURE_BINDING_1D:
2725 case GL_TEXTURE_BINDING_1D_ARRAY:
2726 case GL_TEXTURE_BINDING_2D:
2727 case GL_TEXTURE_BINDING_2D_ARRAY:
2728 case GL_TEXTURE_BINDING_2D_MULTISAMPLE:
2729 case GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY:
2730 case GL_TEXTURE_BINDING_3D:
2731 case GL_TEXTURE_BINDING_BUFFER:
2732 case GL_TEXTURE_BINDING_CUBE_MAP:
2733 case GL_TEXTURE_BINDING_CUBE_MAP_ARRAY:
2734 case GL_TEXTURE_BINDING_RECTANGLE: {
2735 int target;
2736
2737 target = tex_binding_to_index(ctx, pname);
2738 if (target < 0)
2739 goto invalid_enum;
2740 if (index >= _mesa_max_tex_unit(ctx))
2741 goto invalid_value;
2742
2743 v->value_int = ctx->Texture.Unit[index].CurrentTex[target]->Name;
2744 return TYPE_INT;
2745 }
2746
2747 case GL_SAMPLER_BINDING: {
2748 struct gl_sampler_object *samp;
2749
2750 if (!_mesa_is_desktop_gl(ctx) || ctx->Version < 33)
2751 goto invalid_enum;
2752 if (index >= _mesa_max_tex_unit(ctx))
2753 goto invalid_value;
2754
2755 samp = ctx->Texture.Unit[index].Sampler;
2756 v->value_int = samp ? samp->Name : 0;
2757 return TYPE_INT;
2758 }
2759
2760 case GL_MAX_COMPUTE_WORK_GROUP_COUNT:
2761 if (!_mesa_has_compute_shaders(ctx))
2762 goto invalid_enum;
2763 if (index >= 3)
2764 goto invalid_value;
2765 v->value_int = ctx->Const.MaxComputeWorkGroupCount[index];
2766 return TYPE_INT;
2767
2768 case GL_MAX_COMPUTE_WORK_GROUP_SIZE:
2769 if (!_mesa_has_compute_shaders(ctx))
2770 goto invalid_enum;
2771 if (index >= 3)
2772 goto invalid_value;
2773 v->value_int = ctx->Const.MaxComputeWorkGroupSize[index];
2774 return TYPE_INT;
2775
2776 /* ARB_compute_variable_group_size */
2777 case GL_MAX_COMPUTE_VARIABLE_GROUP_SIZE_ARB:
2778 if (!ctx->Extensions.ARB_compute_variable_group_size)
2779 goto invalid_enum;
2780 if (index >= 3)
2781 goto invalid_value;
2782 v->value_int = ctx->Const.MaxComputeVariableGroupSize[index];
2783 return TYPE_INT;
2784
2785 /* GL_EXT_external_objects */
2786 case GL_NUM_DEVICE_UUIDS_EXT:
2787 v->value_int = 1;
2788 return TYPE_INT;
2789 case GL_DRIVER_UUID_EXT:
2790 if (index >= 1)
2791 goto invalid_value;
2792 _mesa_get_driver_uuid(ctx, v->value_int_4);
2793 return TYPE_INT_4;
2794 case GL_DEVICE_UUID_EXT:
2795 if (index >= 1)
2796 goto invalid_value;
2797 _mesa_get_device_uuid(ctx, v->value_int_4);
2798 return TYPE_INT_4;
2799 /* GL_EXT_direct_state_access */
2800 case GL_TEXTURE_1D:
2801 case GL_TEXTURE_2D:
2802 case GL_TEXTURE_3D:
2803 case GL_TEXTURE_CUBE_MAP:
2804 case GL_TEXTURE_GEN_S:
2805 case GL_TEXTURE_GEN_T:
2806 case GL_TEXTURE_GEN_R:
2807 case GL_TEXTURE_GEN_Q:
2808 case GL_TEXTURE_RECTANGLE_ARB: {
2809 GLuint curTexUnitSave;
2810 if (index >= _mesa_max_tex_unit(ctx))
2811 goto invalid_enum;
2812 curTexUnitSave = ctx->Texture.CurrentUnit;
2813 _mesa_ActiveTexture_no_error(GL_TEXTURE0 + index);
2814 v->value_int = _mesa_IsEnabled(pname);
2815 _mesa_ActiveTexture_no_error(GL_TEXTURE0 + curTexUnitSave);
2816 return TYPE_INT;
2817 }
2818 case GL_TEXTURE_COORD_ARRAY: {
2819 GLuint curTexUnitSave;
2820 if (index >= ctx->Const.MaxTextureCoordUnits)
2821 goto invalid_enum;
2822 curTexUnitSave = ctx->Array.ActiveTexture;
2823 _mesa_ClientActiveTexture(GL_TEXTURE0 + index);
2824 v->value_int = _mesa_IsEnabled(pname);
2825 _mesa_ClientActiveTexture(GL_TEXTURE0 + curTexUnitSave);
2826 return TYPE_INT;
2827 }
2828 case GL_TEXTURE_MATRIX:
2829 if (index >= ARRAY_SIZE(ctx->TextureMatrixStack))
2830 goto invalid_enum;
2831 v->value_matrix = ctx->TextureMatrixStack[index].Top;
2832 return TYPE_MATRIX;
2833 case GL_TRANSPOSE_TEXTURE_MATRIX:
2834 if (index >= ARRAY_SIZE(ctx->TextureMatrixStack))
2835 goto invalid_enum;
2836 v->value_matrix = ctx->TextureMatrixStack[index].Top;
2837 return TYPE_MATRIX_T;
2838 /* GL_NV_viewport_swizzle */
2839 case GL_VIEWPORT_SWIZZLE_X_NV:
2840 if (!ctx->Extensions.NV_viewport_swizzle)
2841 goto invalid_enum;
2842 if (index >= ctx->Const.MaxViewports)
2843 goto invalid_value;
2844 v->value_int = ctx->ViewportArray[index].SwizzleX;
2845 return TYPE_INT;
2846 case GL_VIEWPORT_SWIZZLE_Y_NV:
2847 if (!ctx->Extensions.NV_viewport_swizzle)
2848 goto invalid_enum;
2849 if (index >= ctx->Const.MaxViewports)
2850 goto invalid_value;
2851 v->value_int = ctx->ViewportArray[index].SwizzleY;
2852 return TYPE_INT;
2853 case GL_VIEWPORT_SWIZZLE_Z_NV:
2854 if (!ctx->Extensions.NV_viewport_swizzle)
2855 goto invalid_enum;
2856 if (index >= ctx->Const.MaxViewports)
2857 goto invalid_value;
2858 v->value_int = ctx->ViewportArray[index].SwizzleZ;
2859 return TYPE_INT;
2860 case GL_VIEWPORT_SWIZZLE_W_NV:
2861 if (!ctx->Extensions.NV_viewport_swizzle)
2862 goto invalid_enum;
2863 if (index >= ctx->Const.MaxViewports)
2864 goto invalid_value;
2865 v->value_int = ctx->ViewportArray[index].SwizzleW;
2866 return TYPE_INT;
2867 }
2868
2869 invalid_enum:
2870 _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func,
2871 _mesa_enum_to_string(pname));
2872 return TYPE_INVALID;
2873 invalid_value:
2874 _mesa_error(ctx, GL_INVALID_VALUE, "%s(pname=%s)", func,
2875 _mesa_enum_to_string(pname));
2876 return TYPE_INVALID;
2877 }
2878
2879 void GLAPIENTRY
2880 _mesa_GetBooleani_v( GLenum pname, GLuint index, GLboolean *params )
2881 {
2882 union value v;
2883 enum value_type type =
2884 find_value_indexed("glGetBooleani_v", pname, index, &v);
2885
2886 switch (type) {
2887 case TYPE_INT:
2888 case TYPE_UINT:
2889 params[0] = INT_TO_BOOLEAN(v.value_int);
2890 break;
2891 case TYPE_INT_4:
2892 case TYPE_UINT_4:
2893 params[0] = INT_TO_BOOLEAN(v.value_int_4[0]);
2894 params[1] = INT_TO_BOOLEAN(v.value_int_4[1]);
2895 params[2] = INT_TO_BOOLEAN(v.value_int_4[2]);
2896 params[3] = INT_TO_BOOLEAN(v.value_int_4[3]);
2897 break;
2898 case TYPE_INT64:
2899 params[0] = INT64_TO_BOOLEAN(v.value_int64);
2900 break;
2901 default:
2902 ; /* nothing - GL error was recorded */
2903 }
2904 }
2905
2906 void GLAPIENTRY
2907 _mesa_GetIntegeri_v( GLenum pname, GLuint index, GLint *params )
2908 {
2909 union value v;
2910 enum value_type type =
2911 find_value_indexed("glGetIntegeri_v", pname, index, &v);
2912
2913 switch (type) {
2914 case TYPE_FLOAT_4:
2915 case TYPE_FLOATN_4:
2916 params[3] = lroundf(v.value_float_4[3]);
2917 case TYPE_FLOAT_3:
2918 case TYPE_FLOATN_3:
2919 params[2] = lroundf(v.value_float_4[2]);
2920 case TYPE_FLOAT_2:
2921 case TYPE_FLOATN_2:
2922 params[1] = lroundf(v.value_float_4[1]);
2923 case TYPE_FLOAT:
2924 case TYPE_FLOATN:
2925 params[0] = lroundf(v.value_float_4[0]);
2926 break;
2927
2928 case TYPE_DOUBLEN_2:
2929 params[1] = lroundf(v.value_double_2[1]);
2930 case TYPE_DOUBLEN:
2931 params[0] = lroundf(v.value_double_2[0]);
2932 break;
2933
2934 case TYPE_INT:
2935 case TYPE_UINT:
2936 params[0] = v.value_int;
2937 break;
2938 case TYPE_INT_4:
2939 case TYPE_UINT_4:
2940 params[0] = v.value_int_4[0];
2941 params[1] = v.value_int_4[1];
2942 params[2] = v.value_int_4[2];
2943 params[3] = v.value_int_4[3];
2944 break;
2945 case TYPE_INT64:
2946 params[0] = INT64_TO_INT(v.value_int64);
2947 break;
2948 default:
2949 ; /* nothing - GL error was recorded */
2950 }
2951 }
2952
2953 void GLAPIENTRY
2954 _mesa_GetInteger64i_v( GLenum pname, GLuint index, GLint64 *params )
2955 {
2956 union value v;
2957 enum value_type type =
2958 find_value_indexed("glGetInteger64i_v", pname, index, &v);
2959
2960 switch (type) {
2961 case TYPE_INT:
2962 params[0] = v.value_int;
2963 break;
2964 case TYPE_INT_4:
2965 params[0] = v.value_int_4[0];
2966 params[1] = v.value_int_4[1];
2967 params[2] = v.value_int_4[2];
2968 params[3] = v.value_int_4[3];
2969 break;
2970 case TYPE_UINT:
2971 params[0] = (GLuint) v.value_int;
2972 break;
2973 case TYPE_UINT_4:
2974 params[0] = (GLuint) v.value_int_4[0];
2975 params[1] = (GLuint) v.value_int_4[1];
2976 params[2] = (GLuint) v.value_int_4[2];
2977 params[3] = (GLuint) v.value_int_4[3];
2978 break;
2979 case TYPE_INT64:
2980 params[0] = v.value_int64;
2981 break;
2982 default:
2983 ; /* nothing - GL error was recorded */
2984 }
2985 }
2986
2987 void GLAPIENTRY
2988 _mesa_GetFloati_v(GLenum pname, GLuint index, GLfloat *params)
2989 {
2990 int i;
2991 GLmatrix *m;
2992 union value v;
2993 enum value_type type =
2994 find_value_indexed("glGetFloati_v", pname, index, &v);
2995
2996 switch (type) {
2997 case TYPE_FLOAT_4:
2998 case TYPE_FLOATN_4:
2999 params[3] = v.value_float_4[3];
3000 case TYPE_FLOAT_3:
3001 case TYPE_FLOATN_3:
3002 params[2] = v.value_float_4[2];
3003 case TYPE_FLOAT_2:
3004 case TYPE_FLOATN_2:
3005 params[1] = v.value_float_4[1];
3006 case TYPE_FLOAT:
3007 case TYPE_FLOATN:
3008 params[0] = v.value_float_4[0];
3009 break;
3010
3011 case TYPE_DOUBLEN_2:
3012 params[1] = (GLfloat) v.value_double_2[1];
3013 case TYPE_DOUBLEN:
3014 params[0] = (GLfloat) v.value_double_2[0];
3015 break;
3016
3017 case TYPE_INT_4:
3018 params[3] = (GLfloat) v.value_int_4[3];
3019 case TYPE_INT_3:
3020 params[2] = (GLfloat) v.value_int_4[2];
3021 case TYPE_INT_2:
3022 case TYPE_ENUM_2:
3023 params[1] = (GLfloat) v.value_int_4[1];
3024 case TYPE_INT:
3025 case TYPE_ENUM:
3026 case TYPE_ENUM16:
3027 params[0] = (GLfloat) v.value_int_4[0];
3028 break;
3029
3030 case TYPE_INT_N:
3031 for (i = 0; i < v.value_int_n.n; i++)
3032 params[i] = (GLfloat) v.value_int_n.ints[i];
3033 break;
3034
3035 case TYPE_UINT_4:
3036 params[3] = (GLfloat) ((GLuint) v.value_int_4[3]);
3037 case TYPE_UINT_3:
3038 params[2] = (GLfloat) ((GLuint) v.value_int_4[2]);
3039 case TYPE_UINT_2:
3040 params[1] = (GLfloat) ((GLuint) v.value_int_4[1]);
3041 case TYPE_UINT:
3042 params[0] = (GLfloat) ((GLuint) v.value_int_4[0]);
3043 break;
3044
3045 case TYPE_INT64:
3046 params[0] = (GLfloat) v.value_int64;
3047 break;
3048
3049 case TYPE_BOOLEAN:
3050 params[0] = BOOLEAN_TO_FLOAT(v.value_bool);
3051 break;
3052
3053 case TYPE_UBYTE:
3054 params[0] = (GLfloat) v.value_ubyte;
3055 break;
3056
3057 case TYPE_SHORT:
3058 params[0] = (GLfloat) v.value_short;
3059 break;
3060
3061 case TYPE_MATRIX:
3062 m = *(GLmatrix **) &v;
3063 for (i = 0; i < 16; i++)
3064 params[i] = m->m[i];
3065 break;
3066
3067 case TYPE_MATRIX_T:
3068 m = *(GLmatrix **) &v;
3069 for (i = 0; i < 16; i++)
3070 params[i] = m->m[transpose[i]];
3071 break;
3072
3073 default:
3074 ;
3075 }
3076 }
3077
3078 void GLAPIENTRY
3079 _mesa_GetDoublei_v(GLenum pname, GLuint index, GLdouble *params)
3080 {
3081 int i;
3082 GLmatrix *m;
3083 union value v;
3084 enum value_type type =
3085 find_value_indexed("glGetDoublei_v", pname, index, &v);
3086
3087 switch (type) {
3088 case TYPE_FLOAT_4:
3089 case TYPE_FLOATN_4:
3090 params[3] = (GLdouble) v.value_float_4[3];
3091 case TYPE_FLOAT_3:
3092 case TYPE_FLOATN_3:
3093 params[2] = (GLdouble) v.value_float_4[2];
3094 case TYPE_FLOAT_2:
3095 case TYPE_FLOATN_2:
3096 params[1] = (GLdouble) v.value_float_4[1];
3097 case TYPE_FLOAT:
3098 case TYPE_FLOATN:
3099 params[0] = (GLdouble) v.value_float_4[0];
3100 break;
3101
3102 case TYPE_DOUBLEN_2:
3103 params[1] = v.value_double_2[1];
3104 case TYPE_DOUBLEN:
3105 params[0] = v.value_double_2[0];
3106 break;
3107
3108 case TYPE_INT_4:
3109 params[3] = (GLdouble) v.value_int_4[3];
3110 case TYPE_INT_3:
3111 params[2] = (GLdouble) v.value_int_4[2];
3112 case TYPE_INT_2:
3113 case TYPE_ENUM_2:
3114 params[1] = (GLdouble) v.value_int_4[1];
3115 case TYPE_INT:
3116 case TYPE_ENUM:
3117 case TYPE_ENUM16:
3118 params[0] = (GLdouble) v.value_int_4[0];
3119 break;
3120
3121 case TYPE_INT_N:
3122 for (i = 0; i < v.value_int_n.n; i++)
3123 params[i] = (GLdouble) v.value_int_n.ints[i];
3124 break;
3125
3126 case TYPE_UINT_4:
3127 params[3] = (GLdouble) ((GLuint) v.value_int_4[3]);
3128 case TYPE_UINT_3:
3129 params[2] = (GLdouble) ((GLuint) v.value_int_4[2]);
3130 case TYPE_UINT_2:
3131 params[1] = (GLdouble) ((GLuint) v.value_int_4[1]);
3132 case TYPE_UINT:
3133 params[0] = (GLdouble) ((GLuint) v.value_int_4[0]);
3134 break;
3135
3136 case TYPE_INT64:
3137 params[0] = (GLdouble) v.value_int64;
3138 break;
3139
3140 case TYPE_BOOLEAN:
3141 params[0] = (GLdouble) BOOLEAN_TO_FLOAT(v.value_bool);
3142 break;
3143
3144 case TYPE_UBYTE:
3145 params[0] = (GLdouble) v.value_ubyte;
3146 break;
3147
3148 case TYPE_SHORT:
3149 params[0] = (GLdouble) v.value_short;
3150 break;
3151
3152 case TYPE_MATRIX:
3153 m = *(GLmatrix **) &v;
3154 for (i = 0; i < 16; i++)
3155 params[i] = (GLdouble) m->m[i];
3156 break;
3157
3158 case TYPE_MATRIX_T:
3159 m = *(GLmatrix **) &v;
3160 for (i = 0; i < 16; i++)
3161 params[i] = (GLdouble) m->m[transpose[i]];
3162 break;
3163
3164 default:
3165 ;
3166 }
3167 }
3168
3169 void GLAPIENTRY
3170 _mesa_GetUnsignedBytei_vEXT(GLenum target, GLuint index, GLubyte *data)
3171 {
3172 GLsizei size;
3173 union value v;
3174 enum value_type type;
3175 const char *func = "glGetUnsignedBytei_vEXT";
3176
3177 GET_CURRENT_CONTEXT(ctx);
3178
3179 if (!ctx->Extensions.EXT_memory_object) {
3180 _mesa_error(ctx, GL_INVALID_OPERATION, "%s(unsupported)", func);
3181 return;
3182 }
3183
3184 type = find_value_indexed(func, target, index, &v);
3185 size = get_value_size(type, &v);
3186 if (size <= 0) {
3187 _mesa_problem(ctx, "invalid value type in GetUnsignedBytei_vEXT()");
3188 }
3189
3190 switch (type) {
3191 case TYPE_UINT:
3192 case TYPE_INT:
3193 case TYPE_INT_2:
3194 case TYPE_UINT_2:
3195 case TYPE_INT_3:
3196 case TYPE_UINT_3:
3197 case TYPE_INT_4:
3198 case TYPE_UINT_4:
3199 case TYPE_INT64:
3200 case TYPE_ENUM16:
3201 case TYPE_ENUM:
3202 case TYPE_ENUM_2:
3203 case TYPE_BOOLEAN:
3204 case TYPE_UBYTE:
3205 case TYPE_SHORT:
3206 case TYPE_FLOAT:
3207 case TYPE_FLOATN:
3208 case TYPE_FLOAT_2:
3209 case TYPE_FLOATN_2:
3210 case TYPE_FLOAT_3:
3211 case TYPE_FLOATN_3:
3212 case TYPE_FLOAT_4:
3213 case TYPE_FLOATN_4:
3214 case TYPE_FLOAT_8:
3215 case TYPE_DOUBLEN:
3216 case TYPE_DOUBLEN_2:
3217 case TYPE_MATRIX:
3218 case TYPE_MATRIX_T:
3219 memcpy(data, &v.value_int, size);
3220 break;
3221 case TYPE_INT_N:
3222 memcpy(data, &v.value_int_n.ints, size);
3223 break;
3224 default:
3225 break; /* nothing - GL error was recorded */
3226 }
3227 }
3228
3229 void GLAPIENTRY
3230 _mesa_GetFixedv(GLenum pname, GLfixed *params)
3231 {
3232 const struct value_desc *d;
3233 union value v;
3234 GLmatrix *m;
3235 int shift, i;
3236 void *p;
3237
3238 d = find_value("glGetDoublev", pname, &p, &v);
3239 switch (d->type) {
3240 case TYPE_INVALID:
3241 break;
3242 case TYPE_CONST:
3243 params[0] = INT_TO_FIXED(d->offset);
3244 break;
3245
3246 case TYPE_FLOAT_4:
3247 case TYPE_FLOATN_4:
3248 params[3] = FLOAT_TO_FIXED(((GLfloat *) p)[3]);
3249 case TYPE_FLOAT_3:
3250 case TYPE_FLOATN_3:
3251 params[2] = FLOAT_TO_FIXED(((GLfloat *) p)[2]);
3252 case TYPE_FLOAT_2:
3253 case TYPE_FLOATN_2:
3254 params[1] = FLOAT_TO_FIXED(((GLfloat *) p)[1]);
3255 case TYPE_FLOAT:
3256 case TYPE_FLOATN:
3257 params[0] = FLOAT_TO_FIXED(((GLfloat *) p)[0]);
3258 break;
3259
3260 case TYPE_DOUBLEN_2:
3261 params[1] = FLOAT_TO_FIXED(((GLdouble *) p)[1]);
3262 case TYPE_DOUBLEN:
3263 params[0] = FLOAT_TO_FIXED(((GLdouble *) p)[0]);
3264 break;
3265
3266 case TYPE_INT_4:
3267 case TYPE_UINT_4:
3268 params[3] = INT_TO_FIXED(((GLint *) p)[3]);
3269 case TYPE_INT_3:
3270 case TYPE_UINT_3:
3271 params[2] = INT_TO_FIXED(((GLint *) p)[2]);
3272 case TYPE_INT_2:
3273 case TYPE_UINT_2:
3274 case TYPE_ENUM_2:
3275 params[1] = INT_TO_FIXED(((GLint *) p)[1]);
3276 case TYPE_INT:
3277 case TYPE_UINT:
3278 case TYPE_ENUM:
3279 params[0] = INT_TO_FIXED(((GLint *) p)[0]);
3280 break;
3281
3282 case TYPE_ENUM16:
3283 params[0] = INT_TO_FIXED((GLint)(((GLenum16 *) p)[0]));
3284 break;
3285
3286 case TYPE_INT_N:
3287 for (i = 0; i < v.value_int_n.n; i++)
3288 params[i] = INT_TO_FIXED(v.value_int_n.ints[i]);
3289 break;
3290
3291 case TYPE_INT64:
3292 params[0] = ((GLint64 *) p)[0];
3293 break;
3294
3295 case TYPE_BOOLEAN:
3296 params[0] = BOOLEAN_TO_FIXED(((GLboolean*) p)[0]);
3297 break;
3298
3299 case TYPE_UBYTE:
3300 params[0] = INT_TO_FIXED(((GLubyte *) p)[0]);
3301 break;
3302
3303 case TYPE_SHORT:
3304 params[0] = INT_TO_FIXED(((GLshort *) p)[0]);
3305 break;
3306
3307 case TYPE_MATRIX:
3308 m = *(GLmatrix **) p;
3309 for (i = 0; i < 16; i++)
3310 params[i] = FLOAT_TO_FIXED(m->m[i]);
3311 break;
3312
3313 case TYPE_MATRIX_T:
3314 m = *(GLmatrix **) p;
3315 for (i = 0; i < 16; i++)
3316 params[i] = FLOAT_TO_FIXED(m->m[transpose[i]]);
3317 break;
3318
3319 case TYPE_BIT_0:
3320 case TYPE_BIT_1:
3321 case TYPE_BIT_2:
3322 case TYPE_BIT_3:
3323 case TYPE_BIT_4:
3324 case TYPE_BIT_5:
3325 case TYPE_BIT_6:
3326 case TYPE_BIT_7:
3327 shift = d->type - TYPE_BIT_0;
3328 params[0] = BOOLEAN_TO_FIXED((*(GLbitfield *) p >> shift) & 1);
3329 break;
3330 }
3331 }