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[mesa.git] / src / mesa / main / get.c
1 /*
2 * Copyright (C) 2010 Brian Paul All Rights Reserved.
3 * Copyright (C) 2010 Intel Corporation
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice shall be included
13 * in all copies or substantial portions of the Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
16 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
19 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
20 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
21 * OTHER DEALINGS IN THE SOFTWARE.
22 *
23 * Author: Kristian Høgsberg <krh@bitplanet.net>
24 */
25
26 #include "glheader.h"
27 #include "context.h"
28 #include "blend.h"
29 #include "debug_output.h"
30 #include "enable.h"
31 #include "enums.h"
32 #include "errors.h"
33 #include "extensions.h"
34 #include "get.h"
35 #include "macros.h"
36 #include "mtypes.h"
37 #include "spirv_extensions.h"
38 #include "state.h"
39 #include "texcompress.h"
40 #include "texstate.h"
41 #include "framebuffer.h"
42 #include "samplerobj.h"
43 #include "stencil.h"
44 #include "version.h"
45
46 /* This is a table driven implemetation of the glGet*v() functions.
47 * The basic idea is that most getters just look up an int somewhere
48 * in struct gl_context and then convert it to a bool or float according to
49 * which of glGetIntegerv() glGetBooleanv() etc is being called.
50 * Instead of generating code to do this, we can just record the enum
51 * value and the offset into struct gl_context in an array of structs. Then
52 * in glGet*(), we lookup the struct for the enum in question, and use
53 * the offset to get the int we need.
54 *
55 * Sometimes we need to look up a float, a boolean, a bit in a
56 * bitfield, a matrix or other types instead, so we need to track the
57 * type of the value in struct gl_context. And sometimes the value isn't in
58 * struct gl_context but in the drawbuffer, the array object, current texture
59 * unit, or maybe it's a computed value. So we need to also track
60 * where or how to find the value. Finally, we sometimes need to
61 * check that one of a number of extensions are enabled, the GL
62 * version or flush or call _mesa_update_state(). This is done by
63 * attaching optional extra information to the value description
64 * struct, it's sort of like an array of opcodes that describe extra
65 * checks or actions.
66 *
67 * Putting all this together we end up with struct value_desc below,
68 * and with a couple of macros to help, the table of struct value_desc
69 * is about as concise as the specification in the old python script.
70 */
71
72 static inline GLboolean
73 FLOAT_TO_BOOLEAN(GLfloat X)
74 {
75 return ( (X) ? GL_TRUE : GL_FALSE );
76 }
77
78 static inline GLint
79 FLOAT_TO_FIXED(GLfloat F)
80 {
81 return ( ((F) * 65536.0f > INT_MAX) ? INT_MAX :
82 ((F) * 65536.0f < INT_MIN) ? INT_MIN :
83 (GLint) ((F) * 65536.0f) );
84 }
85
86 static inline GLboolean
87 INT_TO_BOOLEAN(GLint I)
88 {
89 return ( (I) ? GL_TRUE : GL_FALSE );
90 }
91
92 static inline GLfixed
93 INT_TO_FIXED(GLint I)
94 {
95 return (((I) > SHRT_MAX) ? INT_MAX :
96 ((I) < SHRT_MIN) ? INT_MIN :
97 (GLint) ((I) * 65536) );
98 }
99
100
101 static inline GLboolean
102 INT64_TO_BOOLEAN(GLint64 I)
103 {
104 return ( (I) ? GL_TRUE : GL_FALSE );
105 }
106
107 static inline GLint
108 INT64_TO_INT(GLint64 I)
109 {
110 return ( (GLint)((I > INT_MAX) ? INT_MAX : ((I < INT_MIN) ? INT_MIN : (I))) );
111 }
112
113 static inline GLint
114 BOOLEAN_TO_INT(GLboolean B)
115 {
116 return ( (GLint) (B) );
117 }
118
119 static inline GLfloat
120 BOOLEAN_TO_FLOAT(GLboolean B)
121 {
122 return ( (B) ? 1.0F : 0.0F );
123 }
124
125 static inline GLfixed
126 BOOLEAN_TO_FIXED(GLboolean B)
127 {
128 return ( (GLint) ((B) ? 1 : 0) << 16 );
129 }
130
131 enum value_type {
132 TYPE_INVALID,
133 TYPE_INT,
134 TYPE_INT_2,
135 TYPE_INT_3,
136 TYPE_INT_4,
137 TYPE_INT_N,
138 TYPE_UINT,
139 TYPE_UINT_2,
140 TYPE_UINT_3,
141 TYPE_UINT_4,
142 TYPE_INT64,
143 TYPE_ENUM16,
144 TYPE_ENUM,
145 TYPE_ENUM_2,
146 TYPE_BOOLEAN,
147 TYPE_UBYTE,
148 TYPE_SHORT,
149 TYPE_BIT_0,
150 TYPE_BIT_1,
151 TYPE_BIT_2,
152 TYPE_BIT_3,
153 TYPE_BIT_4,
154 TYPE_BIT_5,
155 TYPE_BIT_6,
156 TYPE_BIT_7,
157 TYPE_FLOAT,
158 TYPE_FLOAT_2,
159 TYPE_FLOAT_3,
160 TYPE_FLOAT_4,
161 TYPE_FLOAT_8,
162 TYPE_FLOATN,
163 TYPE_FLOATN_2,
164 TYPE_FLOATN_3,
165 TYPE_FLOATN_4,
166 TYPE_DOUBLEN,
167 TYPE_DOUBLEN_2,
168 TYPE_MATRIX,
169 TYPE_MATRIX_T,
170 TYPE_CONST
171 };
172
173 enum value_location {
174 LOC_BUFFER,
175 LOC_CONTEXT,
176 LOC_ARRAY,
177 LOC_TEXUNIT,
178 LOC_CUSTOM
179 };
180
181 enum value_extra {
182 EXTRA_END = 0x8000,
183 EXTRA_VERSION_30,
184 EXTRA_VERSION_31,
185 EXTRA_VERSION_32,
186 EXTRA_VERSION_40,
187 EXTRA_VERSION_43,
188 EXTRA_API_GL,
189 EXTRA_API_GL_CORE,
190 EXTRA_API_ES2,
191 EXTRA_API_ES3,
192 EXTRA_API_ES31,
193 EXTRA_API_ES32,
194 EXTRA_NEW_BUFFERS,
195 EXTRA_NEW_FRAG_CLAMP,
196 EXTRA_VALID_DRAW_BUFFER,
197 EXTRA_VALID_TEXTURE_UNIT,
198 EXTRA_VALID_CLIP_DISTANCE,
199 EXTRA_FLUSH_CURRENT,
200 EXTRA_GLSL_130,
201 EXTRA_EXT_UBO_GS,
202 EXTRA_EXT_ATOMICS_GS,
203 EXTRA_EXT_SHADER_IMAGE_GS,
204 EXTRA_EXT_ATOMICS_TESS,
205 EXTRA_EXT_SHADER_IMAGE_TESS,
206 EXTRA_EXT_SSBO_GS,
207 EXTRA_EXT_FB_NO_ATTACH_GS,
208 EXTRA_EXT_ES_GS,
209 EXTRA_EXT_PROVOKING_VERTEX_32,
210 };
211
212 #define NO_EXTRA NULL
213 #define NO_OFFSET 0
214
215 struct value_desc {
216 GLenum pname;
217 GLubyte location; /**< enum value_location */
218 GLubyte type; /**< enum value_type */
219 int offset;
220 const int *extra;
221 };
222
223 union value {
224 GLfloat value_float;
225 GLfloat value_float_4[4];
226 GLdouble value_double_2[2];
227 GLmatrix *value_matrix;
228 GLint value_int;
229 GLint value_int_4[4];
230 GLint64 value_int64;
231 GLenum value_enum;
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_new_frag_clamp[] = {
321 EXTRA_NEW_FRAG_CLAMP,
322 EXTRA_END
323 };
324
325 static const int extra_valid_draw_buffer[] = {
326 EXTRA_VALID_DRAW_BUFFER,
327 EXTRA_END
328 };
329
330 static const int extra_valid_texture_unit[] = {
331 EXTRA_VALID_TEXTURE_UNIT,
332 EXTRA_END
333 };
334
335 static const int extra_valid_clip_distance[] = {
336 EXTRA_VALID_CLIP_DISTANCE,
337 EXTRA_END
338 };
339
340 static const int extra_flush_current_valid_texture_unit[] = {
341 EXTRA_FLUSH_CURRENT,
342 EXTRA_VALID_TEXTURE_UNIT,
343 EXTRA_END
344 };
345
346 static const int extra_flush_current[] = {
347 EXTRA_FLUSH_CURRENT,
348 EXTRA_END
349 };
350
351 static const int extra_EXT_texture_integer_and_new_buffers[] = {
352 EXT(EXT_texture_integer),
353 EXTRA_NEW_BUFFERS,
354 EXTRA_END
355 };
356
357 static const int extra_GLSL_130_es3_gpushader4[] = {
358 EXTRA_GLSL_130,
359 EXTRA_API_ES3,
360 EXT(EXT_gpu_shader4),
361 EXTRA_END
362 };
363
364 static const int extra_texture_buffer_object[] = {
365 EXT(ARB_texture_buffer_object),
366 EXTRA_END
367 };
368
369 static const int extra_ARB_transform_feedback2_api_es3[] = {
370 EXT(ARB_transform_feedback2),
371 EXTRA_API_ES3,
372 EXTRA_END
373 };
374
375 static const int extra_ARB_uniform_buffer_object_and_geometry_shader[] = {
376 EXTRA_EXT_UBO_GS,
377 EXTRA_END
378 };
379
380 static const int extra_ARB_ES2_compatibility_api_es2[] = {
381 EXT(ARB_ES2_compatibility),
382 EXTRA_API_ES2,
383 EXTRA_END
384 };
385
386 static const int extra_ARB_ES3_compatibility_api_es3[] = {
387 EXT(ARB_ES3_compatibility),
388 EXTRA_API_ES3,
389 EXTRA_END
390 };
391
392 static const int extra_EXT_framebuffer_sRGB_and_new_buffers[] = {
393 EXT(EXT_framebuffer_sRGB),
394 EXTRA_NEW_BUFFERS,
395 EXTRA_END
396 };
397
398 static const int extra_EXT_packed_float[] = {
399 EXT(EXT_packed_float),
400 EXTRA_NEW_BUFFERS,
401 EXTRA_END
402 };
403
404 static const int extra_EXT_texture_array_es3[] = {
405 EXT(EXT_texture_array),
406 EXTRA_API_ES3,
407 EXTRA_END
408 };
409
410 static const int extra_ARB_shader_atomic_counters_and_geometry_shader[] = {
411 EXTRA_EXT_ATOMICS_GS,
412 EXTRA_END
413 };
414
415 static const int extra_ARB_shader_image_load_store_and_geometry_shader[] = {
416 EXTRA_EXT_SHADER_IMAGE_GS,
417 EXTRA_END
418 };
419
420 static const int extra_ARB_shader_atomic_counters_and_tessellation[] = {
421 EXTRA_EXT_ATOMICS_TESS,
422 EXTRA_END
423 };
424
425 static const int extra_ARB_shader_image_load_store_and_tessellation[] = {
426 EXTRA_EXT_SHADER_IMAGE_TESS,
427 EXTRA_END
428 };
429
430 /* HACK: remove when ARB_compute_shader is actually supported */
431 static const int extra_ARB_compute_shader_es31[] = {
432 EXT(ARB_compute_shader),
433 EXTRA_API_ES31,
434 EXTRA_END
435 };
436
437 static const int extra_ARB_shader_storage_buffer_object_es31[] = {
438 EXT(ARB_shader_storage_buffer_object),
439 EXTRA_API_ES31,
440 EXTRA_END
441 };
442
443 static const int extra_ARB_shader_storage_buffer_object_and_geometry_shader[] = {
444 EXTRA_EXT_SSBO_GS,
445 EXTRA_END
446 };
447
448 static const int extra_ARB_shader_image_load_store_shader_storage_buffer_object_es31[] = {
449 EXT(ARB_shader_image_load_store),
450 EXT(ARB_shader_storage_buffer_object),
451 EXTRA_API_ES31,
452 EXTRA_END
453 };
454
455 static const int extra_ARB_framebuffer_no_attachments_and_geometry_shader[] = {
456 EXTRA_EXT_FB_NO_ATTACH_GS,
457 EXTRA_END
458 };
459
460 static const int extra_ARB_viewport_array_or_oes_geometry_shader[] = {
461 EXT(ARB_viewport_array),
462 EXTRA_EXT_ES_GS,
463 EXTRA_END
464 };
465
466 static const int extra_ARB_viewport_array_or_oes_viewport_array[] = {
467 EXT(ARB_viewport_array),
468 EXT(OES_viewport_array),
469 EXTRA_END
470 };
471
472 static const int extra_ARB_gpu_shader5_or_oes_geometry_shader[] = {
473 EXT(ARB_gpu_shader5),
474 EXTRA_EXT_ES_GS,
475 EXTRA_END
476 };
477
478 static const int extra_ARB_gpu_shader5_or_OES_sample_variables[] = {
479 EXT(ARB_gpu_shader5),
480 EXT(OES_sample_variables),
481 EXTRA_END
482 };
483
484 static const int extra_ES32[] = {
485 EXT(ARB_ES3_2_compatibility),
486 EXTRA_API_ES32,
487 EXTRA_END
488 };
489
490 static const int extra_KHR_robustness_or_GL[] = {
491 EXT(KHR_robustness),
492 EXTRA_API_GL,
493 EXTRA_API_GL_CORE,
494 EXTRA_END
495 };
496
497 static const int extra_INTEL_conservative_rasterization[] = {
498 EXT(INTEL_conservative_rasterization),
499 EXTRA_END
500 };
501
502 EXTRA_EXT(ARB_texture_cube_map);
503 EXTRA_EXT(EXT_texture_array);
504 EXTRA_EXT(NV_fog_distance);
505 EXTRA_EXT(EXT_texture_filter_anisotropic);
506 EXTRA_EXT(NV_point_sprite);
507 EXTRA_EXT(NV_texture_rectangle);
508 EXTRA_EXT(EXT_stencil_two_side);
509 EXTRA_EXT(EXT_depth_bounds_test);
510 EXTRA_EXT(ARB_depth_clamp);
511 EXTRA_EXT(AMD_depth_clamp_separate);
512 EXTRA_EXT(ATI_fragment_shader);
513 EXTRA_EXT(EXT_provoking_vertex);
514 EXTRA_EXT(ARB_fragment_shader);
515 EXTRA_EXT(ARB_fragment_program);
516 EXTRA_EXT2(ARB_framebuffer_object, EXT_framebuffer_multisample);
517 EXTRA_EXT(ARB_seamless_cube_map);
518 EXTRA_EXT(ARB_sync);
519 EXTRA_EXT(ARB_vertex_shader);
520 EXTRA_EXT(EXT_transform_feedback);
521 EXTRA_EXT(ARB_transform_feedback3);
522 EXTRA_EXT(EXT_pixel_buffer_object);
523 EXTRA_EXT(ARB_vertex_program);
524 EXTRA_EXT2(NV_point_sprite, ARB_point_sprite);
525 EXTRA_EXT2(ARB_vertex_program, ARB_fragment_program);
526 EXTRA_EXT(ARB_color_buffer_float);
527 EXTRA_EXT(EXT_framebuffer_sRGB);
528 EXTRA_EXT(OES_EGL_image_external);
529 EXTRA_EXT(ARB_blend_func_extended);
530 EXTRA_EXT(ARB_uniform_buffer_object);
531 EXTRA_EXT(ARB_timer_query);
532 EXTRA_EXT2(ARB_texture_cube_map_array, OES_texture_cube_map_array);
533 EXTRA_EXT(ARB_texture_buffer_range);
534 EXTRA_EXT(ARB_texture_multisample);
535 EXTRA_EXT(ARB_texture_gather);
536 EXTRA_EXT(ARB_shader_atomic_counters);
537 EXTRA_EXT(ARB_draw_indirect);
538 EXTRA_EXT(ARB_shader_image_load_store);
539 EXTRA_EXT(ARB_query_buffer_object);
540 EXTRA_EXT2(ARB_transform_feedback3, ARB_gpu_shader5);
541 EXTRA_EXT(INTEL_performance_query);
542 EXTRA_EXT(ARB_explicit_uniform_location);
543 EXTRA_EXT(ARB_clip_control);
544 EXTRA_EXT(ARB_polygon_offset_clamp);
545 EXTRA_EXT(ARB_framebuffer_no_attachments);
546 EXTRA_EXT(ARB_tessellation_shader);
547 EXTRA_EXT(ARB_shader_storage_buffer_object);
548 EXTRA_EXT(ARB_indirect_parameters);
549 EXTRA_EXT(ATI_meminfo);
550 EXTRA_EXT(NVX_gpu_memory_info);
551 EXTRA_EXT(ARB_cull_distance);
552 EXTRA_EXT(EXT_window_rectangles);
553 EXTRA_EXT(KHR_blend_equation_advanced_coherent);
554 EXTRA_EXT(OES_primitive_bounding_box);
555 EXTRA_EXT(ARB_compute_variable_group_size);
556 EXTRA_EXT(KHR_robustness);
557 EXTRA_EXT(ARB_sparse_buffer);
558 EXTRA_EXT(NV_conservative_raster);
559 EXTRA_EXT(NV_conservative_raster_dilate);
560 EXTRA_EXT(NV_conservative_raster_pre_snap_triangles);
561 EXTRA_EXT(ARB_sample_locations);
562 EXTRA_EXT(AMD_framebuffer_multisample_advanced);
563 EXTRA_EXT(ARB_spirv_extensions);
564 EXTRA_EXT(NV_viewport_swizzle);
565
566 static const int
567 extra_ARB_color_buffer_float_or_glcore[] = {
568 EXT(ARB_color_buffer_float),
569 EXTRA_API_GL_CORE,
570 EXTRA_END
571 };
572
573 static const int
574 extra_NV_primitive_restart[] = {
575 EXT(NV_primitive_restart),
576 EXTRA_END
577 };
578
579 static const int extra_version_30[] = { EXTRA_VERSION_30, EXTRA_END };
580 static const int extra_version_31[] = { EXTRA_VERSION_31, EXTRA_END };
581 static const int extra_version_32[] = { EXTRA_VERSION_32, EXTRA_END };
582 static const int extra_version_43[] = { EXTRA_VERSION_43, EXTRA_END };
583
584 static const int extra_gl30_es3[] = {
585 EXTRA_VERSION_30,
586 EXTRA_API_ES3,
587 EXTRA_END,
588 };
589
590 static const int extra_gl32_es3[] = {
591 EXTRA_VERSION_32,
592 EXTRA_API_ES3,
593 EXTRA_END,
594 };
595
596 static const int extra_version_32_OES_geometry_shader[] = {
597 EXTRA_VERSION_32,
598 EXTRA_EXT_ES_GS,
599 EXTRA_END
600 };
601
602 static const int extra_gl40_ARB_sample_shading[] = {
603 EXTRA_VERSION_40,
604 EXT(ARB_sample_shading),
605 EXTRA_END
606 };
607
608 static const int
609 extra_ARB_vertex_program_api_es2[] = {
610 EXT(ARB_vertex_program),
611 EXTRA_API_ES2,
612 EXTRA_END
613 };
614
615 /* The ReadBuffer get token is valid under either full GL or under
616 * GLES2 if the NV_read_buffer extension is available. */
617 static const int
618 extra_NV_read_buffer_api_gl[] = {
619 EXTRA_API_ES2,
620 EXTRA_API_GL,
621 EXTRA_END
622 };
623
624 static const int extra_core_ARB_color_buffer_float_and_new_buffers[] = {
625 EXTRA_API_GL_CORE,
626 EXT(ARB_color_buffer_float),
627 EXTRA_NEW_BUFFERS,
628 EXTRA_END
629 };
630
631 static const int extra_EXT_shader_framebuffer_fetch[] = {
632 EXTRA_API_ES2,
633 EXTRA_API_ES3,
634 EXT(EXT_shader_framebuffer_fetch),
635 EXTRA_END
636 };
637
638 static const int extra_EXT_provoking_vertex_32[] = {
639 EXTRA_EXT_PROVOKING_VERTEX_32,
640 EXTRA_END
641 };
642
643 static const int extra_EXT_disjoint_timer_query[] = {
644 EXTRA_API_ES2,
645 EXTRA_API_ES3,
646 EXT(EXT_disjoint_timer_query),
647 EXTRA_END
648 };
649
650
651 /* This is the big table describing all the enums we accept in
652 * glGet*v(). The table is partitioned into six parts: enums
653 * understood by all GL APIs (OpenGL, GLES and GLES2), enums shared
654 * between OpenGL and GLES, enums exclusive to GLES, etc for the
655 * remaining combinations. To look up the enums valid in a given API
656 * we will use a hash table specific to that API. These tables are in
657 * turn generated at build time and included through get_hash.h.
658 */
659
660 #include "get_hash.h"
661
662 /* All we need now is a way to look up the value struct from the enum.
663 * The code generated by gcc for the old generated big switch
664 * statement is a big, balanced, open coded if/else tree, essentially
665 * an unrolled binary search. It would be natural to sort the new
666 * enum table and use bsearch(), but we will use a read-only hash
667 * table instead. bsearch() has a nice guaranteed worst case
668 * performance, but we're also guaranteed to hit that worst case
669 * (log2(n) iterations) for about half the enums. Instead, using an
670 * open addressing hash table, we can find the enum on the first try
671 * for 80% of the enums, 1 collision for 10% and never more than 5
672 * collisions for any enum (typical numbers). And the code is very
673 * simple, even though it feels a little magic. */
674
675 /**
676 * Handle irregular enums
677 *
678 * Some values don't conform to the "well-known type at context
679 * pointer + offset" pattern, so we have this function to catch all
680 * the corner cases. Typically, it's a computed value or a one-off
681 * pointer to a custom struct or something.
682 *
683 * In this case we can't return a pointer to the value, so we'll have
684 * to use the temporary variable 'v' declared back in the calling
685 * glGet*v() function to store the result.
686 *
687 * \param ctx the current context
688 * \param d the struct value_desc that describes the enum
689 * \param v pointer to the tmp declared in the calling glGet*v() function
690 */
691 static void
692 find_custom_value(struct gl_context *ctx, const struct value_desc *d, union value *v)
693 {
694 struct gl_buffer_object **buffer_obj, *buf;
695 struct gl_array_attributes *array;
696 GLuint unit, *p;
697
698 switch (d->pname) {
699 case GL_MAJOR_VERSION:
700 v->value_int = ctx->Version / 10;
701 break;
702 case GL_MINOR_VERSION:
703 v->value_int = ctx->Version % 10;
704 break;
705
706 case GL_TEXTURE_1D:
707 case GL_TEXTURE_2D:
708 case GL_TEXTURE_3D:
709 case GL_TEXTURE_CUBE_MAP:
710 case GL_TEXTURE_RECTANGLE_NV:
711 case GL_TEXTURE_EXTERNAL_OES:
712 v->value_bool = _mesa_IsEnabled(d->pname);
713 break;
714
715 case GL_LINE_STIPPLE_PATTERN:
716 /* This is the only GLushort, special case it here by promoting
717 * to an int rather than introducing a new type. */
718 v->value_int = ctx->Line.StipplePattern;
719 break;
720
721 case GL_CURRENT_RASTER_TEXTURE_COORDS:
722 unit = ctx->Texture.CurrentUnit;
723 v->value_float_4[0] = ctx->Current.RasterTexCoords[unit][0];
724 v->value_float_4[1] = ctx->Current.RasterTexCoords[unit][1];
725 v->value_float_4[2] = ctx->Current.RasterTexCoords[unit][2];
726 v->value_float_4[3] = ctx->Current.RasterTexCoords[unit][3];
727 break;
728
729 case GL_CURRENT_TEXTURE_COORDS:
730 unit = ctx->Texture.CurrentUnit;
731 v->value_float_4[0] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][0];
732 v->value_float_4[1] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][1];
733 v->value_float_4[2] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][2];
734 v->value_float_4[3] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][3];
735 break;
736
737 case GL_COLOR_WRITEMASK:
738 v->value_int_4[0] = GET_COLORMASK_BIT(ctx->Color.ColorMask, 0, 0);
739 v->value_int_4[1] = GET_COLORMASK_BIT(ctx->Color.ColorMask, 0, 1);
740 v->value_int_4[2] = GET_COLORMASK_BIT(ctx->Color.ColorMask, 0, 2);
741 v->value_int_4[3] = GET_COLORMASK_BIT(ctx->Color.ColorMask, 0, 3);
742 break;
743
744 case GL_DEPTH_CLAMP:
745 v->value_bool = ctx->Transform.DepthClampNear || ctx->Transform.DepthClampFar;
746 break;
747
748 case GL_EDGE_FLAG:
749 v->value_bool = ctx->Current.Attrib[VERT_ATTRIB_EDGEFLAG][0] == 1.0F;
750 break;
751
752 case GL_READ_BUFFER:
753 v->value_enum = ctx->ReadBuffer->ColorReadBuffer;
754 break;
755
756 case GL_MAP2_GRID_DOMAIN:
757 v->value_float_4[0] = ctx->Eval.MapGrid2u1;
758 v->value_float_4[1] = ctx->Eval.MapGrid2u2;
759 v->value_float_4[2] = ctx->Eval.MapGrid2v1;
760 v->value_float_4[3] = ctx->Eval.MapGrid2v2;
761 break;
762
763 case GL_TEXTURE_STACK_DEPTH:
764 unit = ctx->Texture.CurrentUnit;
765 v->value_int = ctx->TextureMatrixStack[unit].Depth + 1;
766 break;
767 case GL_TEXTURE_MATRIX:
768 unit = ctx->Texture.CurrentUnit;
769 v->value_matrix = ctx->TextureMatrixStack[unit].Top;
770 break;
771
772 case GL_VERTEX_ARRAY:
773 v->value_bool = !!(ctx->Array.VAO->Enabled & VERT_BIT_POS);
774 break;
775 case GL_NORMAL_ARRAY:
776 v->value_bool = !!(ctx->Array.VAO->Enabled & VERT_BIT_NORMAL);
777 break;
778 case GL_COLOR_ARRAY:
779 v->value_bool = !!(ctx->Array.VAO->Enabled & VERT_BIT_COLOR0);
780 break;
781 case GL_TEXTURE_COORD_ARRAY:
782 v->value_bool = !!(ctx->Array.VAO->Enabled & VERT_BIT_TEX(ctx->Array.ActiveTexture));
783 break;
784 case GL_INDEX_ARRAY:
785 v->value_bool = !!(ctx->Array.VAO->Enabled & VERT_BIT_COLOR_INDEX);
786 break;
787 case GL_EDGE_FLAG_ARRAY:
788 v->value_bool = !!(ctx->Array.VAO->Enabled & VERT_BIT_EDGEFLAG);
789 break;
790 case GL_SECONDARY_COLOR_ARRAY:
791 v->value_bool = !!(ctx->Array.VAO->Enabled & VERT_BIT_COLOR1);
792 break;
793 case GL_FOG_COORDINATE_ARRAY:
794 v->value_bool = !!(ctx->Array.VAO->Enabled & VERT_BIT_FOG);
795 break;
796 case GL_POINT_SIZE_ARRAY_OES:
797 v->value_bool = !!(ctx->Array.VAO->Enabled & VERT_BIT_POINT_SIZE);
798 break;
799
800 case GL_TEXTURE_COORD_ARRAY_TYPE:
801 case GL_TEXTURE_COORD_ARRAY_STRIDE:
802 array = &ctx->Array.VAO->VertexAttrib[VERT_ATTRIB_TEX(ctx->Array.ActiveTexture)];
803 v->value_int = *(GLuint *) ((char *) array + d->offset);
804 break;
805
806 case GL_TEXTURE_COORD_ARRAY_SIZE:
807 array = &ctx->Array.VAO->VertexAttrib[VERT_ATTRIB_TEX(ctx->Array.ActiveTexture)];
808 v->value_int = array->Format.Size;
809 break;
810
811 case GL_VERTEX_ARRAY_SIZE:
812 array = &ctx->Array.VAO->VertexAttrib[VERT_ATTRIB_POS];
813 v->value_int = array->Format.Size;
814 break;
815
816 case GL_ACTIVE_TEXTURE_ARB:
817 v->value_int = GL_TEXTURE0_ARB + ctx->Texture.CurrentUnit;
818 break;
819 case GL_CLIENT_ACTIVE_TEXTURE_ARB:
820 v->value_int = GL_TEXTURE0_ARB + ctx->Array.ActiveTexture;
821 break;
822
823 case GL_MODELVIEW_STACK_DEPTH:
824 case GL_PROJECTION_STACK_DEPTH:
825 v->value_int = *(GLint *) ((char *) ctx + d->offset) + 1;
826 break;
827
828 case GL_MAX_TEXTURE_SIZE:
829 case GL_MAX_3D_TEXTURE_SIZE:
830 case GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB:
831 p = (GLuint *) ((char *) ctx + d->offset);
832 v->value_int = 1 << (*p - 1);
833 break;
834
835 case GL_SCISSOR_BOX:
836 v->value_int_4[0] = ctx->Scissor.ScissorArray[0].X;
837 v->value_int_4[1] = ctx->Scissor.ScissorArray[0].Y;
838 v->value_int_4[2] = ctx->Scissor.ScissorArray[0].Width;
839 v->value_int_4[3] = ctx->Scissor.ScissorArray[0].Height;
840 break;
841
842 case GL_SCISSOR_TEST:
843 v->value_bool = ctx->Scissor.EnableFlags & 1;
844 break;
845
846 case GL_LIST_INDEX:
847 v->value_int =
848 ctx->ListState.CurrentList ? ctx->ListState.CurrentList->Name : 0;
849 break;
850 case GL_LIST_MODE:
851 if (!ctx->CompileFlag)
852 v->value_enum = 0;
853 else if (ctx->ExecuteFlag)
854 v->value_enum = GL_COMPILE_AND_EXECUTE;
855 else
856 v->value_enum = GL_COMPILE;
857 break;
858
859 case GL_VIEWPORT:
860 v->value_float_4[0] = ctx->ViewportArray[0].X;
861 v->value_float_4[1] = ctx->ViewportArray[0].Y;
862 v->value_float_4[2] = ctx->ViewportArray[0].Width;
863 v->value_float_4[3] = ctx->ViewportArray[0].Height;
864 break;
865
866 case GL_DEPTH_RANGE:
867 v->value_double_2[0] = ctx->ViewportArray[0].Near;
868 v->value_double_2[1] = ctx->ViewportArray[0].Far;
869 break;
870
871 case GL_ACTIVE_STENCIL_FACE_EXT:
872 v->value_enum = ctx->Stencil.ActiveFace ? GL_BACK : GL_FRONT;
873 break;
874
875 case GL_STENCIL_FAIL:
876 v->value_enum = ctx->Stencil.FailFunc[ctx->Stencil.ActiveFace];
877 break;
878 case GL_STENCIL_FUNC:
879 v->value_enum = ctx->Stencil.Function[ctx->Stencil.ActiveFace];
880 break;
881 case GL_STENCIL_PASS_DEPTH_FAIL:
882 v->value_enum = ctx->Stencil.ZFailFunc[ctx->Stencil.ActiveFace];
883 break;
884 case GL_STENCIL_PASS_DEPTH_PASS:
885 v->value_enum = ctx->Stencil.ZPassFunc[ctx->Stencil.ActiveFace];
886 break;
887 case GL_STENCIL_REF:
888 v->value_int = _mesa_get_stencil_ref(ctx, ctx->Stencil.ActiveFace);
889 break;
890 case GL_STENCIL_BACK_REF:
891 v->value_int = _mesa_get_stencil_ref(ctx, 1);
892 break;
893 case GL_STENCIL_VALUE_MASK:
894 v->value_int = ctx->Stencil.ValueMask[ctx->Stencil.ActiveFace];
895 break;
896 case GL_STENCIL_WRITEMASK:
897 v->value_int = ctx->Stencil.WriteMask[ctx->Stencil.ActiveFace];
898 break;
899
900 case GL_NUM_EXTENSIONS:
901 v->value_int = _mesa_get_extension_count(ctx);
902 break;
903
904 case GL_IMPLEMENTATION_COLOR_READ_TYPE_OES:
905 v->value_int = _mesa_get_color_read_type(ctx, NULL, "glGetIntegerv");
906 break;
907 case GL_IMPLEMENTATION_COLOR_READ_FORMAT_OES:
908 v->value_int = _mesa_get_color_read_format(ctx, NULL, "glGetIntegerv");
909 break;
910
911 case GL_CURRENT_MATRIX_STACK_DEPTH_ARB:
912 v->value_int = ctx->CurrentStack->Depth + 1;
913 break;
914 case GL_CURRENT_MATRIX_ARB:
915 case GL_TRANSPOSE_CURRENT_MATRIX_ARB:
916 v->value_matrix = ctx->CurrentStack->Top;
917 break;
918
919 case GL_NUM_COMPRESSED_TEXTURE_FORMATS_ARB:
920 v->value_int = _mesa_get_compressed_formats(ctx, NULL);
921 break;
922 case GL_COMPRESSED_TEXTURE_FORMATS_ARB:
923 v->value_int_n.n =
924 _mesa_get_compressed_formats(ctx, v->value_int_n.ints);
925 assert(v->value_int_n.n <= (int) ARRAY_SIZE(v->value_int_n.ints));
926 break;
927
928 case GL_MAX_VARYING_FLOATS_ARB:
929 v->value_int = ctx->Const.MaxVarying * 4;
930 break;
931
932 /* Various object names */
933
934 case GL_TEXTURE_BINDING_1D:
935 case GL_TEXTURE_BINDING_2D:
936 case GL_TEXTURE_BINDING_3D:
937 case GL_TEXTURE_BINDING_1D_ARRAY_EXT:
938 case GL_TEXTURE_BINDING_2D_ARRAY_EXT:
939 case GL_TEXTURE_BINDING_CUBE_MAP_ARB:
940 case GL_TEXTURE_BINDING_RECTANGLE_NV:
941 case GL_TEXTURE_BINDING_EXTERNAL_OES:
942 case GL_TEXTURE_BINDING_CUBE_MAP_ARRAY:
943 case GL_TEXTURE_BINDING_2D_MULTISAMPLE:
944 case GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY:
945 unit = ctx->Texture.CurrentUnit;
946 v->value_int =
947 ctx->Texture.Unit[unit].CurrentTex[d->offset]->Name;
948 break;
949
950 /* GL_EXT_external_objects */
951 case GL_NUM_DEVICE_UUIDS_EXT:
952 v->value_int = 1;
953 break;
954 case GL_DRIVER_UUID_EXT:
955 _mesa_get_driver_uuid(ctx, v->value_int_4);
956 break;
957 case GL_DEVICE_UUID_EXT:
958 _mesa_get_device_uuid(ctx, v->value_int_4);
959 break;
960
961 /* GL_EXT_packed_float */
962 case GL_RGBA_SIGNED_COMPONENTS_EXT:
963 {
964 /* Note: we only check the 0th color attachment. */
965 const struct gl_renderbuffer *rb =
966 ctx->DrawBuffer->_ColorDrawBuffers[0];
967 if (rb && _mesa_is_format_signed(rb->Format)) {
968 /* Issue 17 of GL_EXT_packed_float: If a component (such as
969 * alpha) has zero bits, the component should not be considered
970 * signed and so the bit for the respective component should be
971 * zeroed.
972 */
973 GLint r_bits =
974 _mesa_get_format_bits(rb->Format, GL_RED_BITS);
975 GLint g_bits =
976 _mesa_get_format_bits(rb->Format, GL_GREEN_BITS);
977 GLint b_bits =
978 _mesa_get_format_bits(rb->Format, GL_BLUE_BITS);
979 GLint a_bits =
980 _mesa_get_format_bits(rb->Format, GL_ALPHA_BITS);
981 GLint l_bits =
982 _mesa_get_format_bits(rb->Format, GL_TEXTURE_LUMINANCE_SIZE);
983 GLint i_bits =
984 _mesa_get_format_bits(rb->Format, GL_TEXTURE_INTENSITY_SIZE);
985
986 v->value_int_4[0] = r_bits + l_bits + i_bits > 0;
987 v->value_int_4[1] = g_bits + l_bits + i_bits > 0;
988 v->value_int_4[2] = b_bits + l_bits + i_bits > 0;
989 v->value_int_4[3] = a_bits + i_bits > 0;
990 }
991 else {
992 v->value_int_4[0] =
993 v->value_int_4[1] =
994 v->value_int_4[2] =
995 v->value_int_4[3] = 0;
996 }
997 }
998 break;
999
1000 /* GL_ARB_vertex_buffer_object */
1001 case GL_VERTEX_ARRAY_BUFFER_BINDING_ARB:
1002 case GL_NORMAL_ARRAY_BUFFER_BINDING_ARB:
1003 case GL_COLOR_ARRAY_BUFFER_BINDING_ARB:
1004 case GL_INDEX_ARRAY_BUFFER_BINDING_ARB:
1005 case GL_EDGE_FLAG_ARRAY_BUFFER_BINDING_ARB:
1006 case GL_SECONDARY_COLOR_ARRAY_BUFFER_BINDING_ARB:
1007 case GL_FOG_COORDINATE_ARRAY_BUFFER_BINDING_ARB:
1008 buffer_obj = (struct gl_buffer_object **)
1009 ((char *) ctx->Array.VAO + d->offset);
1010 v->value_int = (*buffer_obj) ? (*buffer_obj)->Name : 0;
1011 break;
1012 case GL_ARRAY_BUFFER_BINDING_ARB:
1013 buf = ctx->Array.ArrayBufferObj;
1014 v->value_int = buf ? buf->Name : 0;
1015 break;
1016 case GL_TEXTURE_COORD_ARRAY_BUFFER_BINDING_ARB:
1017 buf = ctx->Array.VAO->BufferBinding[VERT_ATTRIB_TEX(ctx->Array.ActiveTexture)].BufferObj;
1018 v->value_int = buf ? buf->Name : 0;
1019 break;
1020 case GL_ELEMENT_ARRAY_BUFFER_BINDING_ARB:
1021 buf = ctx->Array.VAO->IndexBufferObj;
1022 v->value_int = buf ? buf->Name : 0;
1023 break;
1024
1025 /* ARB_vertex_array_bgra */
1026 case GL_COLOR_ARRAY_SIZE:
1027 array = &ctx->Array.VAO->VertexAttrib[VERT_ATTRIB_COLOR0];
1028 v->value_int = array->Format.Format == GL_BGRA ? GL_BGRA : array->Format.Size;
1029 break;
1030 case GL_SECONDARY_COLOR_ARRAY_SIZE:
1031 array = &ctx->Array.VAO->VertexAttrib[VERT_ATTRIB_COLOR1];
1032 v->value_int = array->Format.Format == GL_BGRA ? GL_BGRA : array->Format.Size;
1033 break;
1034
1035 /* ARB_copy_buffer */
1036 case GL_COPY_READ_BUFFER:
1037 v->value_int = ctx->CopyReadBuffer ? ctx->CopyReadBuffer->Name : 0;
1038 break;
1039 case GL_COPY_WRITE_BUFFER:
1040 v->value_int = ctx->CopyWriteBuffer ? ctx->CopyWriteBuffer->Name : 0;
1041 break;
1042
1043 case GL_PIXEL_PACK_BUFFER_BINDING_EXT:
1044 v->value_int = ctx->Pack.BufferObj ? ctx->Pack.BufferObj->Name : 0;
1045 break;
1046 case GL_PIXEL_UNPACK_BUFFER_BINDING_EXT:
1047 v->value_int = ctx->Unpack.BufferObj ? ctx->Unpack.BufferObj->Name : 0;
1048 break;
1049 case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING:
1050 v->value_int = ctx->TransformFeedback.CurrentBuffer ?
1051 ctx->TransformFeedback.CurrentBuffer->Name : 0;
1052 break;
1053 case GL_TRANSFORM_FEEDBACK_BUFFER_PAUSED:
1054 v->value_int = ctx->TransformFeedback.CurrentObject->Paused;
1055 break;
1056 case GL_TRANSFORM_FEEDBACK_BUFFER_ACTIVE:
1057 v->value_int = ctx->TransformFeedback.CurrentObject->Active;
1058 break;
1059 case GL_TRANSFORM_FEEDBACK_BINDING:
1060 v->value_int = ctx->TransformFeedback.CurrentObject->Name;
1061 break;
1062 case GL_CURRENT_PROGRAM:
1063 /* The Changelog of the ARB_separate_shader_objects spec says:
1064 *
1065 * 24 25 Jul 2011 pbrown Remove the language erroneously deleting
1066 * CURRENT_PROGRAM. In the EXT extension, this
1067 * token was aliased to ACTIVE_PROGRAM_EXT, and
1068 * was used to indicate the last program set by
1069 * either ActiveProgramEXT or UseProgram. In
1070 * the ARB extension, the SSO active programs
1071 * are now program pipeline object state and
1072 * CURRENT_PROGRAM should still be used to query
1073 * the last program set by UseProgram (bug 7822).
1074 */
1075 v->value_int =
1076 ctx->Shader.ActiveProgram ? ctx->Shader.ActiveProgram->Name : 0;
1077 break;
1078 case GL_READ_FRAMEBUFFER_BINDING_EXT:
1079 v->value_int = ctx->ReadBuffer->Name;
1080 break;
1081 case GL_RENDERBUFFER_BINDING_EXT:
1082 v->value_int =
1083 ctx->CurrentRenderbuffer ? ctx->CurrentRenderbuffer->Name : 0;
1084 break;
1085 case GL_POINT_SIZE_ARRAY_BUFFER_BINDING_OES:
1086 buf = ctx->Array.VAO->BufferBinding[VERT_ATTRIB_POINT_SIZE].BufferObj;
1087 v->value_int = buf ? buf->Name : 0;
1088 break;
1089
1090 case GL_FOG_COLOR:
1091 if (_mesa_get_clamp_fragment_color(ctx, ctx->DrawBuffer))
1092 COPY_4FV(v->value_float_4, ctx->Fog.Color);
1093 else
1094 COPY_4FV(v->value_float_4, ctx->Fog.ColorUnclamped);
1095 break;
1096 case GL_COLOR_CLEAR_VALUE:
1097 if (_mesa_get_clamp_fragment_color(ctx, ctx->DrawBuffer)) {
1098 v->value_float_4[0] = CLAMP(ctx->Color.ClearColor.f[0], 0.0F, 1.0F);
1099 v->value_float_4[1] = CLAMP(ctx->Color.ClearColor.f[1], 0.0F, 1.0F);
1100 v->value_float_4[2] = CLAMP(ctx->Color.ClearColor.f[2], 0.0F, 1.0F);
1101 v->value_float_4[3] = CLAMP(ctx->Color.ClearColor.f[3], 0.0F, 1.0F);
1102 } else
1103 COPY_4FV(v->value_float_4, ctx->Color.ClearColor.f);
1104 break;
1105 case GL_BLEND_COLOR_EXT:
1106 if (_mesa_get_clamp_fragment_color(ctx, ctx->DrawBuffer))
1107 COPY_4FV(v->value_float_4, ctx->Color.BlendColor);
1108 else
1109 COPY_4FV(v->value_float_4, ctx->Color.BlendColorUnclamped);
1110 break;
1111 case GL_ALPHA_TEST_REF:
1112 if (_mesa_get_clamp_fragment_color(ctx, ctx->DrawBuffer))
1113 v->value_float = ctx->Color.AlphaRef;
1114 else
1115 v->value_float = ctx->Color.AlphaRefUnclamped;
1116 break;
1117 case GL_MAX_VERTEX_UNIFORM_VECTORS:
1118 v->value_int = ctx->Const.Program[MESA_SHADER_VERTEX].MaxUniformComponents / 4;
1119 break;
1120
1121 case GL_MAX_FRAGMENT_UNIFORM_VECTORS:
1122 v->value_int = ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxUniformComponents / 4;
1123 break;
1124
1125 /* GL_ARB_texture_buffer_object */
1126 case GL_TEXTURE_BUFFER_ARB:
1127 v->value_int = ctx->Texture.BufferObject ? ctx->Texture.BufferObject->Name : 0;
1128 break;
1129 case GL_TEXTURE_BINDING_BUFFER_ARB:
1130 unit = ctx->Texture.CurrentUnit;
1131 v->value_int =
1132 ctx->Texture.Unit[unit].CurrentTex[TEXTURE_BUFFER_INDEX]->Name;
1133 break;
1134 case GL_TEXTURE_BUFFER_DATA_STORE_BINDING_ARB:
1135 {
1136 struct gl_buffer_object *buf =
1137 ctx->Texture.Unit[ctx->Texture.CurrentUnit]
1138 .CurrentTex[TEXTURE_BUFFER_INDEX]->BufferObject;
1139 v->value_int = buf ? buf->Name : 0;
1140 }
1141 break;
1142 case GL_TEXTURE_BUFFER_FORMAT_ARB:
1143 v->value_int = ctx->Texture.Unit[ctx->Texture.CurrentUnit]
1144 .CurrentTex[TEXTURE_BUFFER_INDEX]->BufferObjectFormat;
1145 break;
1146
1147 /* GL_ARB_sampler_objects */
1148 case GL_SAMPLER_BINDING:
1149 {
1150 struct gl_sampler_object *samp =
1151 ctx->Texture.Unit[ctx->Texture.CurrentUnit].Sampler;
1152 v->value_int = samp ? samp->Name : 0;
1153 }
1154 break;
1155 /* GL_ARB_uniform_buffer_object */
1156 case GL_UNIFORM_BUFFER_BINDING:
1157 v->value_int = ctx->UniformBuffer ? ctx->UniformBuffer->Name : 0;
1158 break;
1159 /* GL_ARB_shader_storage_buffer_object */
1160 case GL_SHADER_STORAGE_BUFFER_BINDING:
1161 v->value_int = ctx->ShaderStorageBuffer ? ctx->ShaderStorageBuffer->Name : 0;
1162 break;
1163 /* GL_ARB_query_buffer_object */
1164 case GL_QUERY_BUFFER_BINDING:
1165 v->value_int = ctx->QueryBuffer ? ctx->QueryBuffer->Name : 0;
1166 break;
1167 /* GL_ARB_timer_query */
1168 case GL_TIMESTAMP:
1169 if (ctx->Driver.GetTimestamp) {
1170 v->value_int64 = ctx->Driver.GetTimestamp(ctx);
1171 }
1172 else {
1173 _mesa_problem(ctx, "driver doesn't implement GetTimestamp");
1174 }
1175 break;
1176 /* GL_KHR_DEBUG */
1177 case GL_DEBUG_OUTPUT:
1178 case GL_DEBUG_OUTPUT_SYNCHRONOUS:
1179 case GL_DEBUG_LOGGED_MESSAGES:
1180 case GL_DEBUG_NEXT_LOGGED_MESSAGE_LENGTH:
1181 case GL_DEBUG_GROUP_STACK_DEPTH:
1182 v->value_int = _mesa_get_debug_state_int(ctx, d->pname);
1183 break;
1184 /* GL_ARB_shader_atomic_counters */
1185 case GL_ATOMIC_COUNTER_BUFFER_BINDING:
1186 v->value_int = ctx->AtomicBuffer ? ctx->AtomicBuffer->Name : 0;
1187 break;
1188 /* GL 4.3 */
1189 case GL_NUM_SHADING_LANGUAGE_VERSIONS:
1190 v->value_int = _mesa_get_shading_language_version(ctx, -1, NULL);
1191 break;
1192 /* GL_ARB_draw_indirect */
1193 case GL_DRAW_INDIRECT_BUFFER_BINDING:
1194 v->value_int = ctx->DrawIndirectBuffer ? ctx->DrawIndirectBuffer->Name: 0;
1195 break;
1196 /* GL_ARB_indirect_parameters */
1197 case GL_PARAMETER_BUFFER_BINDING_ARB:
1198 v->value_int = ctx->ParameterBuffer ? ctx->ParameterBuffer->Name : 0;
1199 break;
1200 /* GL_ARB_separate_shader_objects */
1201 case GL_PROGRAM_PIPELINE_BINDING:
1202 if (ctx->Pipeline.Current) {
1203 v->value_int = ctx->Pipeline.Current->Name;
1204 } else {
1205 v->value_int = 0;
1206 }
1207 break;
1208 /* GL_ARB_compute_shader */
1209 case GL_DISPATCH_INDIRECT_BUFFER_BINDING:
1210 v->value_int = ctx->DispatchIndirectBuffer ?
1211 ctx->DispatchIndirectBuffer->Name : 0;
1212 break;
1213 /* GL_ARB_multisample */
1214 case GL_SAMPLES:
1215 v->value_int = _mesa_geometric_samples(ctx->DrawBuffer);
1216 break;
1217 case GL_SAMPLE_BUFFERS:
1218 v->value_int = _mesa_geometric_samples(ctx->DrawBuffer) > 0;
1219 break;
1220 /* GL_EXT_textrue_integer */
1221 case GL_RGBA_INTEGER_MODE_EXT:
1222 v->value_int = (ctx->DrawBuffer->_IntegerBuffers != 0);
1223 break;
1224 /* GL_ATI_meminfo & GL_NVX_gpu_memory_info */
1225 case GL_VBO_FREE_MEMORY_ATI:
1226 case GL_TEXTURE_FREE_MEMORY_ATI:
1227 case GL_RENDERBUFFER_FREE_MEMORY_ATI:
1228 case GL_GPU_MEMORY_INFO_DEDICATED_VIDMEM_NVX:
1229 case GL_GPU_MEMORY_INFO_TOTAL_AVAILABLE_MEMORY_NVX:
1230 case GL_GPU_MEMORY_INFO_CURRENT_AVAILABLE_VIDMEM_NVX:
1231 case GL_GPU_MEMORY_INFO_EVICTION_COUNT_NVX:
1232 case GL_GPU_MEMORY_INFO_EVICTED_MEMORY_NVX:
1233 {
1234 struct gl_memory_info info;
1235
1236 ctx->Driver.QueryMemoryInfo(ctx, &info);
1237
1238 if (d->pname == GL_GPU_MEMORY_INFO_DEDICATED_VIDMEM_NVX)
1239 v->value_int = info.total_device_memory;
1240 else if (d->pname == GL_GPU_MEMORY_INFO_TOTAL_AVAILABLE_MEMORY_NVX)
1241 v->value_int = info.total_device_memory +
1242 info.total_staging_memory;
1243 else if (d->pname == GL_GPU_MEMORY_INFO_CURRENT_AVAILABLE_VIDMEM_NVX)
1244 v->value_int = info.avail_device_memory;
1245 else if (d->pname == GL_GPU_MEMORY_INFO_EVICTION_COUNT_NVX)
1246 v->value_int = info.nr_device_memory_evictions;
1247 else if (d->pname == GL_GPU_MEMORY_INFO_EVICTED_MEMORY_NVX)
1248 v->value_int = info.device_memory_evicted;
1249 else {
1250 /* ATI free memory enums.
1251 *
1252 * Since the GPU memory is (usually) page-table based, every two
1253 * consecutive elements are equal. From the GL_ATI_meminfo
1254 * specification:
1255 *
1256 * "param[0] - total memory free in the pool
1257 * param[1] - largest available free block in the pool
1258 * param[2] - total auxiliary memory free
1259 * param[3] - largest auxiliary free block"
1260 *
1261 * All three (VBO, TEXTURE, RENDERBUFFER) queries return
1262 * the same numbers here.
1263 */
1264 v->value_int_4[0] = info.avail_device_memory;
1265 v->value_int_4[1] = info.avail_device_memory;
1266 v->value_int_4[2] = info.avail_staging_memory;
1267 v->value_int_4[3] = info.avail_staging_memory;
1268 }
1269 }
1270 break;
1271
1272 /* GL_ARB_get_program_binary */
1273 case GL_PROGRAM_BINARY_FORMATS:
1274 assert(ctx->Const.NumProgramBinaryFormats <= 1);
1275 v->value_int_n.n = MIN2(ctx->Const.NumProgramBinaryFormats, 1);
1276 if (ctx->Const.NumProgramBinaryFormats > 0) {
1277 v->value_int_n.ints[0] = GL_PROGRAM_BINARY_FORMAT_MESA;
1278 }
1279 break;
1280 /* ARB_spirv_extensions */
1281 case GL_NUM_SPIR_V_EXTENSIONS:
1282 v->value_int = _mesa_get_spirv_extension_count(ctx);
1283 break;
1284 /* GL_EXT_disjoint_timer_query */
1285 case GL_GPU_DISJOINT_EXT:
1286 {
1287 simple_mtx_lock(&ctx->Shared->Mutex);
1288 v->value_int = ctx->Shared->DisjointOperation;
1289 /* Reset state as expected by the spec. */
1290 ctx->Shared->DisjointOperation = false;
1291 simple_mtx_unlock(&ctx->Shared->Mutex);
1292 }
1293 break;
1294 /* GL_ARB_sample_locations */
1295 case GL_SAMPLE_LOCATION_SUBPIXEL_BITS_ARB:
1296 case GL_SAMPLE_LOCATION_PIXEL_GRID_WIDTH_ARB:
1297 case GL_SAMPLE_LOCATION_PIXEL_GRID_HEIGHT_ARB:
1298 {
1299 GLuint bits, width, height;
1300
1301 if (ctx->NewState & _NEW_BUFFERS)
1302 _mesa_update_state(ctx);
1303
1304 if (ctx->DrawBuffer->_Status != GL_FRAMEBUFFER_COMPLETE) {
1305 v->value_uint = 0;
1306 break;
1307 }
1308
1309 ctx->Driver.GetProgrammableSampleCaps(ctx, ctx->DrawBuffer,
1310 &bits, &width, &height);
1311
1312 if (d->pname == GL_SAMPLE_LOCATION_PIXEL_GRID_WIDTH_ARB)
1313 v->value_uint = width;
1314 else if (d->pname == GL_SAMPLE_LOCATION_PIXEL_GRID_HEIGHT_ARB)
1315 v->value_uint = height;
1316 else
1317 v->value_uint = bits;
1318 }
1319 break;
1320 case GL_PROGRAMMABLE_SAMPLE_LOCATION_TABLE_SIZE_ARB:
1321 v->value_uint = MAX_SAMPLE_LOCATION_TABLE_SIZE;
1322 break;
1323
1324 /* GL_AMD_framebuffer_multisample_advanced */
1325 case GL_SUPPORTED_MULTISAMPLE_MODES_AMD:
1326 v->value_int_n.n = ctx->Const.NumSupportedMultisampleModes * 3;
1327 memcpy(v->value_int_n.ints, ctx->Const.SupportedMultisampleModes,
1328 v->value_int_n.n * sizeof(GLint));
1329 break;
1330
1331 /* GL_NV_viewport_swizzle */
1332 case GL_VIEWPORT_SWIZZLE_X_NV:
1333 v->value_enum = ctx->ViewportArray[0].SwizzleX;
1334 break;
1335 case GL_VIEWPORT_SWIZZLE_Y_NV:
1336 v->value_enum = ctx->ViewportArray[0].SwizzleY;
1337 break;
1338 case GL_VIEWPORT_SWIZZLE_Z_NV:
1339 v->value_enum = ctx->ViewportArray[0].SwizzleZ;
1340 break;
1341 case GL_VIEWPORT_SWIZZLE_W_NV:
1342 v->value_enum = ctx->ViewportArray[0].SwizzleW;
1343 break;
1344 }
1345 }
1346
1347 /**
1348 * Check extra constraints on a struct value_desc descriptor
1349 *
1350 * If a struct value_desc has a non-NULL extra pointer, it means that
1351 * there are a number of extra constraints to check or actions to
1352 * perform. The extras is just an integer array where each integer
1353 * encode different constraints or actions.
1354 *
1355 * \param ctx current context
1356 * \param func name of calling glGet*v() function for error reporting
1357 * \param d the struct value_desc that has the extra constraints
1358 *
1359 * \return GL_FALSE if all of the constraints were not satisfied,
1360 * otherwise GL_TRUE.
1361 */
1362 static GLboolean
1363 check_extra(struct gl_context *ctx, const char *func, const struct value_desc *d)
1364 {
1365 const GLuint version = ctx->Version;
1366 GLboolean api_check = GL_FALSE;
1367 GLboolean api_found = GL_FALSE;
1368 const int *e;
1369
1370 for (e = d->extra; *e != EXTRA_END; e++) {
1371 switch (*e) {
1372 case EXTRA_VERSION_30:
1373 api_check = GL_TRUE;
1374 if (version >= 30)
1375 api_found = GL_TRUE;
1376 break;
1377 case EXTRA_VERSION_31:
1378 api_check = GL_TRUE;
1379 if (version >= 31)
1380 api_found = GL_TRUE;
1381 break;
1382 case EXTRA_VERSION_32:
1383 api_check = GL_TRUE;
1384 if (version >= 32)
1385 api_found = GL_TRUE;
1386 break;
1387 case EXTRA_VERSION_40:
1388 api_check = GL_TRUE;
1389 if (version >= 40)
1390 api_found = GL_TRUE;
1391 break;
1392 case EXTRA_VERSION_43:
1393 api_check = GL_TRUE;
1394 if (_mesa_is_desktop_gl(ctx) && version >= 43)
1395 api_found = GL_TRUE;
1396 break;
1397 case EXTRA_NEW_FRAG_CLAMP:
1398 if (ctx->NewState & (_NEW_BUFFERS | _NEW_FRAG_CLAMP))
1399 _mesa_update_state(ctx);
1400 break;
1401 case EXTRA_API_ES2:
1402 api_check = GL_TRUE;
1403 if (ctx->API == API_OPENGLES2)
1404 api_found = GL_TRUE;
1405 break;
1406 case EXTRA_API_ES3:
1407 api_check = GL_TRUE;
1408 if (_mesa_is_gles3(ctx))
1409 api_found = GL_TRUE;
1410 break;
1411 case EXTRA_API_ES31:
1412 api_check = GL_TRUE;
1413 if (_mesa_is_gles31(ctx))
1414 api_found = GL_TRUE;
1415 break;
1416 case EXTRA_API_ES32:
1417 api_check = GL_TRUE;
1418 if (_mesa_is_gles32(ctx))
1419 api_found = GL_TRUE;
1420 break;
1421 case EXTRA_API_GL:
1422 api_check = GL_TRUE;
1423 if (_mesa_is_desktop_gl(ctx))
1424 api_found = GL_TRUE;
1425 break;
1426 case EXTRA_API_GL_CORE:
1427 api_check = GL_TRUE;
1428 if (ctx->API == API_OPENGL_CORE)
1429 api_found = GL_TRUE;
1430 break;
1431 case EXTRA_NEW_BUFFERS:
1432 if (ctx->NewState & _NEW_BUFFERS)
1433 _mesa_update_state(ctx);
1434 break;
1435 case EXTRA_FLUSH_CURRENT:
1436 FLUSH_CURRENT(ctx, 0);
1437 break;
1438 case EXTRA_VALID_DRAW_BUFFER:
1439 if (d->pname - GL_DRAW_BUFFER0_ARB >= ctx->Const.MaxDrawBuffers) {
1440 _mesa_error(ctx, GL_INVALID_OPERATION, "%s(draw buffer %u)",
1441 func, d->pname - GL_DRAW_BUFFER0_ARB);
1442 return GL_FALSE;
1443 }
1444 break;
1445 case EXTRA_VALID_TEXTURE_UNIT:
1446 if (ctx->Texture.CurrentUnit >= ctx->Const.MaxTextureCoordUnits) {
1447 _mesa_error(ctx, GL_INVALID_OPERATION, "%s(texture %u)",
1448 func, ctx->Texture.CurrentUnit);
1449 return GL_FALSE;
1450 }
1451 break;
1452 case EXTRA_VALID_CLIP_DISTANCE:
1453 if (d->pname - GL_CLIP_DISTANCE0 >= ctx->Const.MaxClipPlanes) {
1454 _mesa_error(ctx, GL_INVALID_ENUM, "%s(clip distance %u)",
1455 func, d->pname - GL_CLIP_DISTANCE0);
1456 return GL_FALSE;
1457 }
1458 break;
1459 case EXTRA_GLSL_130:
1460 api_check = GL_TRUE;
1461 if (ctx->Const.GLSLVersion >= 130)
1462 api_found = GL_TRUE;
1463 break;
1464 case EXTRA_EXT_UBO_GS:
1465 api_check = GL_TRUE;
1466 if (ctx->Extensions.ARB_uniform_buffer_object &&
1467 _mesa_has_geometry_shaders(ctx))
1468 api_found = GL_TRUE;
1469 break;
1470 case EXTRA_EXT_ATOMICS_GS:
1471 api_check = GL_TRUE;
1472 if (ctx->Extensions.ARB_shader_atomic_counters &&
1473 _mesa_has_geometry_shaders(ctx))
1474 api_found = GL_TRUE;
1475 break;
1476 case EXTRA_EXT_SHADER_IMAGE_GS:
1477 api_check = GL_TRUE;
1478 if (ctx->Extensions.ARB_shader_image_load_store &&
1479 _mesa_has_geometry_shaders(ctx))
1480 api_found = GL_TRUE;
1481 break;
1482 case EXTRA_EXT_ATOMICS_TESS:
1483 api_check = GL_TRUE;
1484 api_found = ctx->Extensions.ARB_shader_atomic_counters &&
1485 _mesa_has_tessellation(ctx);
1486 break;
1487 case EXTRA_EXT_SHADER_IMAGE_TESS:
1488 api_check = GL_TRUE;
1489 api_found = ctx->Extensions.ARB_shader_image_load_store &&
1490 _mesa_has_tessellation(ctx);
1491 break;
1492 case EXTRA_EXT_SSBO_GS:
1493 api_check = GL_TRUE;
1494 if (ctx->Extensions.ARB_shader_storage_buffer_object &&
1495 _mesa_has_geometry_shaders(ctx))
1496 api_found = GL_TRUE;
1497 break;
1498 case EXTRA_EXT_FB_NO_ATTACH_GS:
1499 api_check = GL_TRUE;
1500 if (ctx->Extensions.ARB_framebuffer_no_attachments &&
1501 (_mesa_is_desktop_gl(ctx) ||
1502 _mesa_has_OES_geometry_shader(ctx)))
1503 api_found = GL_TRUE;
1504 break;
1505 case EXTRA_EXT_ES_GS:
1506 api_check = GL_TRUE;
1507 if (_mesa_has_OES_geometry_shader(ctx))
1508 api_found = GL_TRUE;
1509 break;
1510 case EXTRA_EXT_PROVOKING_VERTEX_32:
1511 api_check = GL_TRUE;
1512 if (ctx->API == API_OPENGL_COMPAT || version == 32)
1513 api_found = ctx->Extensions.EXT_provoking_vertex;
1514 break;
1515 case EXTRA_END:
1516 break;
1517 default: /* *e is a offset into the extension struct */
1518 api_check = GL_TRUE;
1519 if (*(GLboolean *) ((char *) &ctx->Extensions + *e))
1520 api_found = GL_TRUE;
1521 break;
1522 }
1523 }
1524
1525 if (api_check && !api_found) {
1526 _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func,
1527 _mesa_enum_to_string(d->pname));
1528 return GL_FALSE;
1529 }
1530
1531 return GL_TRUE;
1532 }
1533
1534 static const struct value_desc error_value =
1535 { 0, 0, TYPE_INVALID, NO_OFFSET, NO_EXTRA };
1536
1537 /**
1538 * Find the struct value_desc corresponding to the enum 'pname'.
1539 *
1540 * We hash the enum value to get an index into the 'table' array,
1541 * which holds the index in the 'values' array of struct value_desc.
1542 * Once we've found the entry, we do the extra checks, if any, then
1543 * look up the value and return a pointer to it.
1544 *
1545 * If the value has to be computed (for example, it's the result of a
1546 * function call or we need to add 1 to it), we use the tmp 'v' to
1547 * store the result.
1548 *
1549 * \param func name of glGet*v() func for error reporting
1550 * \param pname the enum value we're looking up
1551 * \param p is were we return the pointer to the value
1552 * \param v a tmp union value variable in the calling glGet*v() function
1553 *
1554 * \return the struct value_desc corresponding to the enum or a struct
1555 * value_desc of TYPE_INVALID if not found. This lets the calling
1556 * glGet*v() function jump right into a switch statement and
1557 * handle errors there instead of having to check for NULL.
1558 */
1559 static const struct value_desc *
1560 find_value(const char *func, GLenum pname, void **p, union value *v)
1561 {
1562 GET_CURRENT_CONTEXT(ctx);
1563 int mask, hash;
1564 const struct value_desc *d;
1565 int api;
1566
1567 *p = NULL;
1568
1569 api = ctx->API;
1570 /* We index into the table_set[] list of per-API hash tables using the API's
1571 * value in the gl_api enum. Since GLES 3 doesn't have an API_OPENGL* enum
1572 * value since it's compatible with GLES2 its entry in table_set[] is at the
1573 * end.
1574 */
1575 STATIC_ASSERT(ARRAY_SIZE(table_set) == API_OPENGL_LAST + 4);
1576 if (ctx->API == API_OPENGLES2) {
1577 if (ctx->Version >= 32)
1578 api = API_OPENGL_LAST + 3;
1579 else if (ctx->Version >= 31)
1580 api = API_OPENGL_LAST + 2;
1581 else if (ctx->Version >= 30)
1582 api = API_OPENGL_LAST + 1;
1583 }
1584 mask = ARRAY_SIZE(table(api)) - 1;
1585 hash = (pname * prime_factor);
1586 while (1) {
1587 int idx = table(api)[hash & mask];
1588
1589 /* If the enum isn't valid, the hash walk ends with index 0,
1590 * pointing to the first entry of values[] which doesn't hold
1591 * any valid enum. */
1592 if (unlikely(idx == 0)) {
1593 _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func,
1594 _mesa_enum_to_string(pname));
1595 return &error_value;
1596 }
1597
1598 d = &values[idx];
1599 if (likely(d->pname == pname))
1600 break;
1601
1602 hash += prime_step;
1603 }
1604
1605 if (unlikely(d->extra && !check_extra(ctx, func, d)))
1606 return &error_value;
1607
1608 switch (d->location) {
1609 case LOC_BUFFER:
1610 *p = ((char *) ctx->DrawBuffer + d->offset);
1611 return d;
1612 case LOC_CONTEXT:
1613 *p = ((char *) ctx + d->offset);
1614 return d;
1615 case LOC_ARRAY:
1616 *p = ((char *) ctx->Array.VAO + d->offset);
1617 return d;
1618 case LOC_TEXUNIT:
1619 if (ctx->Texture.CurrentUnit < ARRAY_SIZE(ctx->Texture.FixedFuncUnit)) {
1620 unsigned index = ctx->Texture.CurrentUnit;
1621 *p = ((char *)&ctx->Texture.FixedFuncUnit[index] + d->offset);
1622 return d;
1623 }
1624 _mesa_error(ctx, GL_INVALID_VALUE, "%s(pname=%s,unit=%d)", func,
1625 _mesa_enum_to_string(pname),
1626 ctx->Texture.CurrentUnit);
1627 return &error_value;
1628 case LOC_CUSTOM:
1629 find_custom_value(ctx, d, v);
1630 *p = v;
1631 return d;
1632 default:
1633 assert(0);
1634 break;
1635 }
1636
1637 /* silence warning */
1638 return &error_value;
1639 }
1640
1641 static const int transpose[] = {
1642 0, 4, 8, 12,
1643 1, 5, 9, 13,
1644 2, 6, 10, 14,
1645 3, 7, 11, 15
1646 };
1647
1648 static GLsizei
1649 get_value_size(enum value_type type, const union value *v)
1650 {
1651 switch (type) {
1652 case TYPE_INVALID:
1653 return 0;
1654 case TYPE_CONST:
1655 case TYPE_UINT:
1656 case TYPE_INT:
1657 return sizeof(GLint);
1658 case TYPE_INT_2:
1659 case TYPE_UINT_2:
1660 return sizeof(GLint) * 2;
1661 case TYPE_INT_3:
1662 case TYPE_UINT_3:
1663 return sizeof(GLint) * 3;
1664 case TYPE_INT_4:
1665 case TYPE_UINT_4:
1666 return sizeof(GLint) * 4;
1667 case TYPE_INT_N:
1668 return sizeof(GLint) * v->value_int_n.n;
1669 case TYPE_INT64:
1670 return sizeof(GLint64);
1671 break;
1672 case TYPE_ENUM16:
1673 return sizeof(GLenum16);
1674 case TYPE_ENUM:
1675 return sizeof(GLenum);
1676 case TYPE_ENUM_2:
1677 return sizeof(GLenum) * 2;
1678 case TYPE_BOOLEAN:
1679 return sizeof(GLboolean);
1680 case TYPE_UBYTE:
1681 return sizeof(GLubyte);
1682 case TYPE_SHORT:
1683 return sizeof(GLshort);
1684 case TYPE_BIT_0:
1685 case TYPE_BIT_1:
1686 case TYPE_BIT_2:
1687 case TYPE_BIT_3:
1688 case TYPE_BIT_4:
1689 case TYPE_BIT_5:
1690 case TYPE_BIT_6:
1691 case TYPE_BIT_7:
1692 return 1;
1693 case TYPE_FLOAT:
1694 case TYPE_FLOATN:
1695 return sizeof(GLfloat);
1696 case TYPE_FLOAT_2:
1697 case TYPE_FLOATN_2:
1698 return sizeof(GLfloat) * 2;
1699 case TYPE_FLOAT_3:
1700 case TYPE_FLOATN_3:
1701 return sizeof(GLfloat) * 3;
1702 case TYPE_FLOAT_4:
1703 case TYPE_FLOATN_4:
1704 return sizeof(GLfloat) * 4;
1705 case TYPE_FLOAT_8:
1706 return sizeof(GLfloat) * 8;
1707 case TYPE_DOUBLEN:
1708 return sizeof(GLdouble);
1709 case TYPE_DOUBLEN_2:
1710 return sizeof(GLdouble) * 2;
1711 case TYPE_MATRIX:
1712 return sizeof (GLfloat) * 16;
1713 case TYPE_MATRIX_T:
1714 return sizeof (GLfloat) * 16;
1715 default:
1716 return -1;
1717 }
1718 }
1719
1720 void GLAPIENTRY
1721 _mesa_GetBooleanv(GLenum pname, GLboolean *params)
1722 {
1723 const struct value_desc *d;
1724 union value v;
1725 GLmatrix *m;
1726 int shift, i;
1727 void *p;
1728
1729 d = find_value("glGetBooleanv", pname, &p, &v);
1730 switch (d->type) {
1731 case TYPE_INVALID:
1732 break;
1733 case TYPE_CONST:
1734 params[0] = INT_TO_BOOLEAN(d->offset);
1735 break;
1736
1737 case TYPE_FLOAT_8:
1738 params[7] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[7]);
1739 params[6] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[6]);
1740 params[5] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[5]);
1741 params[4] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[4]);
1742 case TYPE_FLOAT_4:
1743 case TYPE_FLOATN_4:
1744 params[3] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[3]);
1745 case TYPE_FLOAT_3:
1746 case TYPE_FLOATN_3:
1747 params[2] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[2]);
1748 case TYPE_FLOAT_2:
1749 case TYPE_FLOATN_2:
1750 params[1] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[1]);
1751 case TYPE_FLOAT:
1752 case TYPE_FLOATN:
1753 params[0] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[0]);
1754 break;
1755
1756 case TYPE_DOUBLEN_2:
1757 params[1] = FLOAT_TO_BOOLEAN(((GLdouble *) p)[1]);
1758 case TYPE_DOUBLEN:
1759 params[0] = FLOAT_TO_BOOLEAN(((GLdouble *) p)[0]);
1760 break;
1761
1762 case TYPE_INT_4:
1763 case TYPE_UINT_4:
1764 params[3] = INT_TO_BOOLEAN(((GLint *) p)[3]);
1765 case TYPE_INT_3:
1766 case TYPE_UINT_3:
1767 params[2] = INT_TO_BOOLEAN(((GLint *) p)[2]);
1768 case TYPE_INT_2:
1769 case TYPE_UINT_2:
1770 case TYPE_ENUM_2:
1771 params[1] = INT_TO_BOOLEAN(((GLint *) p)[1]);
1772 case TYPE_INT:
1773 case TYPE_UINT:
1774 case TYPE_ENUM:
1775 params[0] = INT_TO_BOOLEAN(((GLint *) p)[0]);
1776 break;
1777
1778 case TYPE_ENUM16:
1779 params[0] = INT_TO_BOOLEAN(((GLenum16 *) p)[0]);
1780 break;
1781
1782 case TYPE_INT_N:
1783 for (i = 0; i < v.value_int_n.n; i++)
1784 params[i] = INT_TO_BOOLEAN(v.value_int_n.ints[i]);
1785 break;
1786
1787 case TYPE_INT64:
1788 params[0] = INT64_TO_BOOLEAN(((GLint64 *) p)[0]);
1789 break;
1790
1791 case TYPE_BOOLEAN:
1792 params[0] = ((GLboolean*) p)[0];
1793 break;
1794
1795 case TYPE_UBYTE:
1796 params[0] = INT_TO_BOOLEAN(((GLubyte *) p)[0]);
1797 break;
1798
1799 case TYPE_SHORT:
1800 params[0] = INT_TO_BOOLEAN(((GLshort *) p)[0]);
1801 break;
1802
1803 case TYPE_MATRIX:
1804 m = *(GLmatrix **) p;
1805 for (i = 0; i < 16; i++)
1806 params[i] = FLOAT_TO_BOOLEAN(m->m[i]);
1807 break;
1808
1809 case TYPE_MATRIX_T:
1810 m = *(GLmatrix **) p;
1811 for (i = 0; i < 16; i++)
1812 params[i] = FLOAT_TO_BOOLEAN(m->m[transpose[i]]);
1813 break;
1814
1815 case TYPE_BIT_0:
1816 case TYPE_BIT_1:
1817 case TYPE_BIT_2:
1818 case TYPE_BIT_3:
1819 case TYPE_BIT_4:
1820 case TYPE_BIT_5:
1821 case TYPE_BIT_6:
1822 case TYPE_BIT_7:
1823 shift = d->type - TYPE_BIT_0;
1824 params[0] = (*(GLbitfield *) p >> shift) & 1;
1825 break;
1826 }
1827 }
1828
1829 void GLAPIENTRY
1830 _mesa_GetFloatv(GLenum pname, GLfloat *params)
1831 {
1832 const struct value_desc *d;
1833 union value v;
1834 GLmatrix *m;
1835 int shift, i;
1836 void *p;
1837
1838 d = find_value("glGetFloatv", pname, &p, &v);
1839 switch (d->type) {
1840 case TYPE_INVALID:
1841 break;
1842 case TYPE_CONST:
1843 params[0] = (GLfloat) d->offset;
1844 break;
1845
1846 case TYPE_FLOAT_8:
1847 params[7] = ((GLfloat *) p)[7];
1848 params[6] = ((GLfloat *) p)[6];
1849 params[5] = ((GLfloat *) p)[5];
1850 params[4] = ((GLfloat *) p)[4];
1851 case TYPE_FLOAT_4:
1852 case TYPE_FLOATN_4:
1853 params[3] = ((GLfloat *) p)[3];
1854 case TYPE_FLOAT_3:
1855 case TYPE_FLOATN_3:
1856 params[2] = ((GLfloat *) p)[2];
1857 case TYPE_FLOAT_2:
1858 case TYPE_FLOATN_2:
1859 params[1] = ((GLfloat *) p)[1];
1860 case TYPE_FLOAT:
1861 case TYPE_FLOATN:
1862 params[0] = ((GLfloat *) p)[0];
1863 break;
1864
1865 case TYPE_DOUBLEN_2:
1866 params[1] = (GLfloat) (((GLdouble *) p)[1]);
1867 case TYPE_DOUBLEN:
1868 params[0] = (GLfloat) (((GLdouble *) p)[0]);
1869 break;
1870
1871 case TYPE_INT_4:
1872 params[3] = (GLfloat) (((GLint *) p)[3]);
1873 case TYPE_INT_3:
1874 params[2] = (GLfloat) (((GLint *) p)[2]);
1875 case TYPE_INT_2:
1876 case TYPE_ENUM_2:
1877 params[1] = (GLfloat) (((GLint *) p)[1]);
1878 case TYPE_INT:
1879 case TYPE_ENUM:
1880 params[0] = (GLfloat) (((GLint *) p)[0]);
1881 break;
1882
1883 case TYPE_ENUM16:
1884 params[0] = (GLfloat) (((GLenum16 *) p)[0]);
1885 break;
1886
1887 case TYPE_INT_N:
1888 for (i = 0; i < v.value_int_n.n; i++)
1889 params[i] = (GLfloat) v.value_int_n.ints[i];
1890 break;
1891
1892 case TYPE_UINT_4:
1893 params[3] = (GLfloat) (((GLuint *) p)[3]);
1894 case TYPE_UINT_3:
1895 params[2] = (GLfloat) (((GLuint *) p)[2]);
1896 case TYPE_UINT_2:
1897 params[1] = (GLfloat) (((GLuint *) p)[1]);
1898 case TYPE_UINT:
1899 params[0] = (GLfloat) (((GLuint *) p)[0]);
1900 break;
1901
1902 case TYPE_INT64:
1903 params[0] = (GLfloat) (((GLint64 *) p)[0]);
1904 break;
1905
1906 case TYPE_BOOLEAN:
1907 params[0] = BOOLEAN_TO_FLOAT(*(GLboolean*) p);
1908 break;
1909
1910 case TYPE_UBYTE:
1911 params[0] = (GLfloat) ((GLubyte *) p)[0];
1912 break;
1913
1914 case TYPE_SHORT:
1915 params[0] = (GLfloat) ((GLshort *) p)[0];
1916 break;
1917
1918 case TYPE_MATRIX:
1919 m = *(GLmatrix **) p;
1920 for (i = 0; i < 16; i++)
1921 params[i] = m->m[i];
1922 break;
1923
1924 case TYPE_MATRIX_T:
1925 m = *(GLmatrix **) p;
1926 for (i = 0; i < 16; i++)
1927 params[i] = m->m[transpose[i]];
1928 break;
1929
1930 case TYPE_BIT_0:
1931 case TYPE_BIT_1:
1932 case TYPE_BIT_2:
1933 case TYPE_BIT_3:
1934 case TYPE_BIT_4:
1935 case TYPE_BIT_5:
1936 case TYPE_BIT_6:
1937 case TYPE_BIT_7:
1938 shift = d->type - TYPE_BIT_0;
1939 params[0] = BOOLEAN_TO_FLOAT((*(GLbitfield *) p >> shift) & 1);
1940 break;
1941 }
1942 }
1943
1944 void GLAPIENTRY
1945 _mesa_GetIntegerv(GLenum pname, GLint *params)
1946 {
1947 const struct value_desc *d;
1948 union value v;
1949 GLmatrix *m;
1950 int shift, i;
1951 void *p;
1952
1953 d = find_value("glGetIntegerv", pname, &p, &v);
1954 switch (d->type) {
1955 case TYPE_INVALID:
1956 break;
1957 case TYPE_CONST:
1958 params[0] = d->offset;
1959 break;
1960
1961 case TYPE_FLOAT_8:
1962 params[7] = IROUND(((GLfloat *) p)[7]);
1963 params[6] = IROUND(((GLfloat *) p)[6]);
1964 params[5] = IROUND(((GLfloat *) p)[5]);
1965 params[4] = IROUND(((GLfloat *) p)[4]);
1966 case TYPE_FLOAT_4:
1967 params[3] = IROUND(((GLfloat *) p)[3]);
1968 case TYPE_FLOAT_3:
1969 params[2] = IROUND(((GLfloat *) p)[2]);
1970 case TYPE_FLOAT_2:
1971 params[1] = IROUND(((GLfloat *) p)[1]);
1972 case TYPE_FLOAT:
1973 params[0] = IROUND(((GLfloat *) p)[0]);
1974 break;
1975
1976 case TYPE_FLOATN_4:
1977 params[3] = FLOAT_TO_INT(((GLfloat *) p)[3]);
1978 case TYPE_FLOATN_3:
1979 params[2] = FLOAT_TO_INT(((GLfloat *) p)[2]);
1980 case TYPE_FLOATN_2:
1981 params[1] = FLOAT_TO_INT(((GLfloat *) p)[1]);
1982 case TYPE_FLOATN:
1983 params[0] = FLOAT_TO_INT(((GLfloat *) p)[0]);
1984 break;
1985
1986 case TYPE_DOUBLEN_2:
1987 params[1] = FLOAT_TO_INT(((GLdouble *) p)[1]);
1988 case TYPE_DOUBLEN:
1989 params[0] = FLOAT_TO_INT(((GLdouble *) p)[0]);
1990 break;
1991
1992 case TYPE_INT_4:
1993 case TYPE_UINT_4:
1994 params[3] = ((GLint *) p)[3];
1995 case TYPE_INT_3:
1996 case TYPE_UINT_3:
1997 params[2] = ((GLint *) p)[2];
1998 case TYPE_INT_2:
1999 case TYPE_UINT_2:
2000 case TYPE_ENUM_2:
2001 params[1] = ((GLint *) p)[1];
2002 case TYPE_INT:
2003 case TYPE_UINT:
2004 case TYPE_ENUM:
2005 params[0] = ((GLint *) p)[0];
2006 break;
2007
2008 case TYPE_ENUM16:
2009 params[0] = ((GLenum16 *) p)[0];
2010 break;
2011
2012 case TYPE_INT_N:
2013 for (i = 0; i < v.value_int_n.n; i++)
2014 params[i] = v.value_int_n.ints[i];
2015 break;
2016
2017 case TYPE_INT64:
2018 params[0] = INT64_TO_INT(((GLint64 *) p)[0]);
2019 break;
2020
2021 case TYPE_BOOLEAN:
2022 params[0] = BOOLEAN_TO_INT(*(GLboolean*) p);
2023 break;
2024
2025 case TYPE_UBYTE:
2026 params[0] = ((GLubyte *) p)[0];
2027 break;
2028
2029 case TYPE_SHORT:
2030 params[0] = ((GLshort *) p)[0];
2031 break;
2032
2033 case TYPE_MATRIX:
2034 m = *(GLmatrix **) p;
2035 for (i = 0; i < 16; i++)
2036 params[i] = FLOAT_TO_INT(m->m[i]);
2037 break;
2038
2039 case TYPE_MATRIX_T:
2040 m = *(GLmatrix **) p;
2041 for (i = 0; i < 16; i++)
2042 params[i] = FLOAT_TO_INT(m->m[transpose[i]]);
2043 break;
2044
2045 case TYPE_BIT_0:
2046 case TYPE_BIT_1:
2047 case TYPE_BIT_2:
2048 case TYPE_BIT_3:
2049 case TYPE_BIT_4:
2050 case TYPE_BIT_5:
2051 case TYPE_BIT_6:
2052 case TYPE_BIT_7:
2053 shift = d->type - TYPE_BIT_0;
2054 params[0] = (*(GLbitfield *) p >> shift) & 1;
2055 break;
2056 }
2057 }
2058
2059 void GLAPIENTRY
2060 _mesa_GetInteger64v(GLenum pname, GLint64 *params)
2061 {
2062 const struct value_desc *d;
2063 union value v;
2064 GLmatrix *m;
2065 int shift, i;
2066 void *p;
2067
2068 d = find_value("glGetInteger64v", pname, &p, &v);
2069 switch (d->type) {
2070 case TYPE_INVALID:
2071 break;
2072 case TYPE_CONST:
2073 params[0] = d->offset;
2074 break;
2075
2076 case TYPE_FLOAT_8:
2077 params[7] = IROUND64(((GLfloat *) p)[7]);
2078 params[6] = IROUND64(((GLfloat *) p)[6]);
2079 params[5] = IROUND64(((GLfloat *) p)[5]);
2080 params[4] = IROUND64(((GLfloat *) p)[4]);
2081 case TYPE_FLOAT_4:
2082 params[3] = IROUND64(((GLfloat *) p)[3]);
2083 case TYPE_FLOAT_3:
2084 params[2] = IROUND64(((GLfloat *) p)[2]);
2085 case TYPE_FLOAT_2:
2086 params[1] = IROUND64(((GLfloat *) p)[1]);
2087 case TYPE_FLOAT:
2088 params[0] = IROUND64(((GLfloat *) p)[0]);
2089 break;
2090
2091 case TYPE_FLOATN_4:
2092 params[3] = FLOAT_TO_INT(((GLfloat *) p)[3]);
2093 case TYPE_FLOATN_3:
2094 params[2] = FLOAT_TO_INT(((GLfloat *) p)[2]);
2095 case TYPE_FLOATN_2:
2096 params[1] = FLOAT_TO_INT(((GLfloat *) p)[1]);
2097 case TYPE_FLOATN:
2098 params[0] = FLOAT_TO_INT(((GLfloat *) p)[0]);
2099 break;
2100
2101 case TYPE_DOUBLEN_2:
2102 params[1] = FLOAT_TO_INT(((GLdouble *) p)[1]);
2103 case TYPE_DOUBLEN:
2104 params[0] = FLOAT_TO_INT(((GLdouble *) p)[0]);
2105 break;
2106
2107 case TYPE_INT_4:
2108 params[3] = ((GLint *) p)[3];
2109 case TYPE_INT_3:
2110 params[2] = ((GLint *) p)[2];
2111 case TYPE_INT_2:
2112 case TYPE_ENUM_2:
2113 params[1] = ((GLint *) p)[1];
2114 case TYPE_INT:
2115 case TYPE_ENUM:
2116 params[0] = ((GLint *) p)[0];
2117 break;
2118
2119 case TYPE_ENUM16:
2120 params[0] = ((GLenum16 *) p)[0];
2121 break;
2122
2123 case TYPE_INT_N:
2124 for (i = 0; i < v.value_int_n.n; i++)
2125 params[i] = v.value_int_n.ints[i];
2126 break;
2127
2128 case TYPE_UINT_4:
2129 params[3] = ((GLuint *) p)[3];
2130 case TYPE_UINT_3:
2131 params[2] = ((GLuint *) p)[2];
2132 case TYPE_UINT_2:
2133 params[1] = ((GLuint *) p)[1];
2134 case TYPE_UINT:
2135 params[0] = ((GLuint *) p)[0];
2136 break;
2137
2138 case TYPE_INT64:
2139 params[0] = ((GLint64 *) p)[0];
2140 break;
2141
2142 case TYPE_BOOLEAN:
2143 params[0] = ((GLboolean*) p)[0];
2144 break;
2145
2146 case TYPE_MATRIX:
2147 m = *(GLmatrix **) p;
2148 for (i = 0; i < 16; i++)
2149 params[i] = FLOAT_TO_INT64(m->m[i]);
2150 break;
2151
2152 case TYPE_MATRIX_T:
2153 m = *(GLmatrix **) p;
2154 for (i = 0; i < 16; i++)
2155 params[i] = FLOAT_TO_INT64(m->m[transpose[i]]);
2156 break;
2157
2158 case TYPE_BIT_0:
2159 case TYPE_BIT_1:
2160 case TYPE_BIT_2:
2161 case TYPE_BIT_3:
2162 case TYPE_BIT_4:
2163 case TYPE_BIT_5:
2164 case TYPE_BIT_6:
2165 case TYPE_BIT_7:
2166 shift = d->type - TYPE_BIT_0;
2167 params[0] = (*(GLbitfield *) p >> shift) & 1;
2168 break;
2169 }
2170 }
2171
2172 void GLAPIENTRY
2173 _mesa_GetDoublev(GLenum pname, GLdouble *params)
2174 {
2175 const struct value_desc *d;
2176 union value v;
2177 GLmatrix *m;
2178 int shift, i;
2179 void *p;
2180
2181 d = find_value("glGetDoublev", pname, &p, &v);
2182 switch (d->type) {
2183 case TYPE_INVALID:
2184 break;
2185 case TYPE_CONST:
2186 params[0] = d->offset;
2187 break;
2188
2189 case TYPE_FLOAT_8:
2190 params[7] = ((GLfloat *) p)[7];
2191 params[6] = ((GLfloat *) p)[6];
2192 params[5] = ((GLfloat *) p)[5];
2193 params[4] = ((GLfloat *) p)[4];
2194 case TYPE_FLOAT_4:
2195 case TYPE_FLOATN_4:
2196 params[3] = ((GLfloat *) p)[3];
2197 case TYPE_FLOAT_3:
2198 case TYPE_FLOATN_3:
2199 params[2] = ((GLfloat *) p)[2];
2200 case TYPE_FLOAT_2:
2201 case TYPE_FLOATN_2:
2202 params[1] = ((GLfloat *) p)[1];
2203 case TYPE_FLOAT:
2204 case TYPE_FLOATN:
2205 params[0] = ((GLfloat *) p)[0];
2206 break;
2207
2208 case TYPE_DOUBLEN_2:
2209 params[1] = ((GLdouble *) p)[1];
2210 case TYPE_DOUBLEN:
2211 params[0] = ((GLdouble *) p)[0];
2212 break;
2213
2214 case TYPE_INT_4:
2215 params[3] = ((GLint *) p)[3];
2216 case TYPE_INT_3:
2217 params[2] = ((GLint *) p)[2];
2218 case TYPE_INT_2:
2219 case TYPE_ENUM_2:
2220 params[1] = ((GLint *) p)[1];
2221 case TYPE_INT:
2222 case TYPE_ENUM:
2223 params[0] = ((GLint *) p)[0];
2224 break;
2225
2226 case TYPE_ENUM16:
2227 params[0] = ((GLenum16 *) p)[0];
2228 break;
2229
2230 case TYPE_INT_N:
2231 for (i = 0; i < v.value_int_n.n; i++)
2232 params[i] = v.value_int_n.ints[i];
2233 break;
2234
2235 case TYPE_UINT_4:
2236 params[3] = ((GLuint *) p)[3];
2237 case TYPE_UINT_3:
2238 params[2] = ((GLuint *) p)[2];
2239 case TYPE_UINT_2:
2240 params[1] = ((GLuint *) p)[1];
2241 case TYPE_UINT:
2242 params[0] = ((GLuint *) p)[0];
2243 break;
2244
2245 case TYPE_INT64:
2246 params[0] = (GLdouble) (((GLint64 *) p)[0]);
2247 break;
2248
2249 case TYPE_BOOLEAN:
2250 params[0] = *(GLboolean*) p;
2251 break;
2252
2253 case TYPE_UBYTE:
2254 params[0] = ((GLubyte *) p)[0];
2255 break;
2256
2257 case TYPE_SHORT:
2258 params[0] = ((GLshort *) p)[0];
2259 break;
2260
2261 case TYPE_MATRIX:
2262 m = *(GLmatrix **) p;
2263 for (i = 0; i < 16; i++)
2264 params[i] = m->m[i];
2265 break;
2266
2267 case TYPE_MATRIX_T:
2268 m = *(GLmatrix **) p;
2269 for (i = 0; i < 16; i++)
2270 params[i] = m->m[transpose[i]];
2271 break;
2272
2273 case TYPE_BIT_0:
2274 case TYPE_BIT_1:
2275 case TYPE_BIT_2:
2276 case TYPE_BIT_3:
2277 case TYPE_BIT_4:
2278 case TYPE_BIT_5:
2279 case TYPE_BIT_6:
2280 case TYPE_BIT_7:
2281 shift = d->type - TYPE_BIT_0;
2282 params[0] = (*(GLbitfield *) p >> shift) & 1;
2283 break;
2284 }
2285 }
2286
2287 void GLAPIENTRY
2288 _mesa_GetUnsignedBytevEXT(GLenum pname, GLubyte *data)
2289 {
2290 const struct value_desc *d;
2291 union value v;
2292 int shift;
2293 void *p = NULL;
2294 GLsizei size;
2295 const char *func = "glGetUnsignedBytevEXT";
2296
2297 GET_CURRENT_CONTEXT(ctx);
2298
2299 if (!ctx->Extensions.EXT_memory_object) {
2300 _mesa_error(ctx, GL_INVALID_OPERATION, "%s(unsupported)", func);
2301 return;
2302 }
2303
2304 d = find_value(func, pname, &p, &v);
2305 size = get_value_size(d->type, &v);
2306 if (size <= 0) {
2307 _mesa_problem(ctx, "invalid value type in GetUnsignedBytevEXT()");
2308 }
2309
2310 switch (d->type) {
2311 case TYPE_BIT_0:
2312 case TYPE_BIT_1:
2313 case TYPE_BIT_2:
2314 case TYPE_BIT_3:
2315 case TYPE_BIT_4:
2316 case TYPE_BIT_5:
2317 case TYPE_BIT_6:
2318 case TYPE_BIT_7:
2319 shift = d->type - TYPE_BIT_0;
2320 data[0] = (*(GLbitfield *) p >> shift) & 1;
2321 break;
2322 case TYPE_CONST:
2323 memcpy(data, &d->offset, size);
2324 break;
2325 case TYPE_INT_N:
2326 memcpy(data, &v.value_int_n.ints, size);
2327 break;
2328 case TYPE_UINT:
2329 case TYPE_INT:
2330 case TYPE_INT_2:
2331 case TYPE_UINT_2:
2332 case TYPE_INT_3:
2333 case TYPE_UINT_3:
2334 case TYPE_INT_4:
2335 case TYPE_UINT_4:
2336 case TYPE_INT64:
2337 case TYPE_ENUM:
2338 case TYPE_ENUM_2:
2339 case TYPE_BOOLEAN:
2340 case TYPE_UBYTE:
2341 case TYPE_SHORT:
2342 case TYPE_FLOAT:
2343 case TYPE_FLOATN:
2344 case TYPE_FLOAT_2:
2345 case TYPE_FLOATN_2:
2346 case TYPE_FLOAT_3:
2347 case TYPE_FLOATN_3:
2348 case TYPE_FLOAT_4:
2349 case TYPE_FLOATN_4:
2350 case TYPE_FLOAT_8:
2351 case TYPE_DOUBLEN:
2352 case TYPE_DOUBLEN_2:
2353 case TYPE_MATRIX:
2354 case TYPE_MATRIX_T:
2355 memcpy(data, p, size);
2356 break;
2357 case TYPE_ENUM16: {
2358 GLenum e = *(GLenum16 *)p;
2359 memcpy(data, &e, sizeof(e));
2360 break;
2361 }
2362 default:
2363 break; /* nothing - GL error was recorded */
2364 }
2365 }
2366
2367 /**
2368 * Convert a GL texture binding enum such as GL_TEXTURE_BINDING_2D
2369 * into the corresponding Mesa texture target index.
2370 * \return TEXTURE_x_INDEX or -1 if binding is invalid
2371 */
2372 static int
2373 tex_binding_to_index(const struct gl_context *ctx, GLenum binding)
2374 {
2375 switch (binding) {
2376 case GL_TEXTURE_BINDING_1D:
2377 return _mesa_is_desktop_gl(ctx) ? TEXTURE_1D_INDEX : -1;
2378 case GL_TEXTURE_BINDING_2D:
2379 return TEXTURE_2D_INDEX;
2380 case GL_TEXTURE_BINDING_3D:
2381 return ctx->API != API_OPENGLES ? TEXTURE_3D_INDEX : -1;
2382 case GL_TEXTURE_BINDING_CUBE_MAP:
2383 return ctx->Extensions.ARB_texture_cube_map
2384 ? TEXTURE_CUBE_INDEX : -1;
2385 case GL_TEXTURE_BINDING_RECTANGLE:
2386 return _mesa_is_desktop_gl(ctx) && ctx->Extensions.NV_texture_rectangle
2387 ? TEXTURE_RECT_INDEX : -1;
2388 case GL_TEXTURE_BINDING_1D_ARRAY:
2389 return _mesa_is_desktop_gl(ctx) && ctx->Extensions.EXT_texture_array
2390 ? TEXTURE_1D_ARRAY_INDEX : -1;
2391 case GL_TEXTURE_BINDING_2D_ARRAY:
2392 return (_mesa_is_desktop_gl(ctx) && ctx->Extensions.EXT_texture_array)
2393 || _mesa_is_gles3(ctx)
2394 ? TEXTURE_2D_ARRAY_INDEX : -1;
2395 case GL_TEXTURE_BINDING_BUFFER:
2396 return (_mesa_has_ARB_texture_buffer_object(ctx) ||
2397 _mesa_has_OES_texture_buffer(ctx)) ?
2398 TEXTURE_BUFFER_INDEX : -1;
2399 case GL_TEXTURE_BINDING_CUBE_MAP_ARRAY:
2400 return _mesa_has_texture_cube_map_array(ctx)
2401 ? TEXTURE_CUBE_ARRAY_INDEX : -1;
2402 case GL_TEXTURE_BINDING_2D_MULTISAMPLE:
2403 return _mesa_is_desktop_gl(ctx) && ctx->Extensions.ARB_texture_multisample
2404 ? TEXTURE_2D_MULTISAMPLE_INDEX : -1;
2405 case GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY:
2406 return _mesa_is_desktop_gl(ctx) && ctx->Extensions.ARB_texture_multisample
2407 ? TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX : -1;
2408 default:
2409 return -1;
2410 }
2411 }
2412
2413 static enum value_type
2414 find_value_indexed(const char *func, GLenum pname, GLuint index, union value *v)
2415 {
2416 GET_CURRENT_CONTEXT(ctx);
2417 struct gl_buffer_object *buf;
2418
2419 switch (pname) {
2420
2421 case GL_BLEND:
2422 if (index >= ctx->Const.MaxDrawBuffers)
2423 goto invalid_value;
2424 if (!ctx->Extensions.EXT_draw_buffers2)
2425 goto invalid_enum;
2426 v->value_int = (ctx->Color.BlendEnabled >> index) & 1;
2427 return TYPE_INT;
2428
2429 case GL_BLEND_SRC:
2430 /* fall-through */
2431 case GL_BLEND_SRC_RGB:
2432 if (index >= ctx->Const.MaxDrawBuffers)
2433 goto invalid_value;
2434 if (!ctx->Extensions.ARB_draw_buffers_blend)
2435 goto invalid_enum;
2436 v->value_int = ctx->Color.Blend[index].SrcRGB;
2437 return TYPE_INT;
2438 case GL_BLEND_SRC_ALPHA:
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].SrcA;
2444 return TYPE_INT;
2445 case GL_BLEND_DST:
2446 /* fall-through */
2447 case GL_BLEND_DST_RGB:
2448 if (index >= ctx->Const.MaxDrawBuffers)
2449 goto invalid_value;
2450 if (!ctx->Extensions.ARB_draw_buffers_blend)
2451 goto invalid_enum;
2452 v->value_int = ctx->Color.Blend[index].DstRGB;
2453 return TYPE_INT;
2454 case GL_BLEND_DST_ALPHA:
2455 if (index >= ctx->Const.MaxDrawBuffers)
2456 goto invalid_value;
2457 if (!ctx->Extensions.ARB_draw_buffers_blend)
2458 goto invalid_enum;
2459 v->value_int = ctx->Color.Blend[index].DstA;
2460 return TYPE_INT;
2461 case GL_BLEND_EQUATION_RGB:
2462 if (index >= ctx->Const.MaxDrawBuffers)
2463 goto invalid_value;
2464 if (!ctx->Extensions.ARB_draw_buffers_blend)
2465 goto invalid_enum;
2466 v->value_int = ctx->Color.Blend[index].EquationRGB;
2467 return TYPE_INT;
2468 case GL_BLEND_EQUATION_ALPHA:
2469 if (index >= ctx->Const.MaxDrawBuffers)
2470 goto invalid_value;
2471 if (!ctx->Extensions.ARB_draw_buffers_blend)
2472 goto invalid_enum;
2473 v->value_int = ctx->Color.Blend[index].EquationA;
2474 return TYPE_INT;
2475
2476 case GL_COLOR_WRITEMASK:
2477 if (index >= ctx->Const.MaxDrawBuffers)
2478 goto invalid_value;
2479 if (!ctx->Extensions.EXT_draw_buffers2)
2480 goto invalid_enum;
2481 v->value_int_4[0] = GET_COLORMASK_BIT(ctx->Color.ColorMask, index, 0);
2482 v->value_int_4[1] = GET_COLORMASK_BIT(ctx->Color.ColorMask, index, 1);
2483 v->value_int_4[2] = GET_COLORMASK_BIT(ctx->Color.ColorMask, index, 2);
2484 v->value_int_4[3] = GET_COLORMASK_BIT(ctx->Color.ColorMask, index, 3);
2485 return TYPE_INT_4;
2486
2487 case GL_SCISSOR_BOX:
2488 if (index >= ctx->Const.MaxViewports)
2489 goto invalid_value;
2490 v->value_int_4[0] = ctx->Scissor.ScissorArray[index].X;
2491 v->value_int_4[1] = ctx->Scissor.ScissorArray[index].Y;
2492 v->value_int_4[2] = ctx->Scissor.ScissorArray[index].Width;
2493 v->value_int_4[3] = ctx->Scissor.ScissorArray[index].Height;
2494 return TYPE_INT_4;
2495
2496 case GL_WINDOW_RECTANGLE_EXT:
2497 if (!ctx->Extensions.EXT_window_rectangles)
2498 goto invalid_enum;
2499 if (index >= ctx->Const.MaxWindowRectangles)
2500 goto invalid_value;
2501 v->value_int_4[0] = ctx->Scissor.WindowRects[index].X;
2502 v->value_int_4[1] = ctx->Scissor.WindowRects[index].Y;
2503 v->value_int_4[2] = ctx->Scissor.WindowRects[index].Width;
2504 v->value_int_4[3] = ctx->Scissor.WindowRects[index].Height;
2505 return TYPE_INT_4;
2506
2507 case GL_VIEWPORT:
2508 if (index >= ctx->Const.MaxViewports)
2509 goto invalid_value;
2510 v->value_float_4[0] = ctx->ViewportArray[index].X;
2511 v->value_float_4[1] = ctx->ViewportArray[index].Y;
2512 v->value_float_4[2] = ctx->ViewportArray[index].Width;
2513 v->value_float_4[3] = ctx->ViewportArray[index].Height;
2514 return TYPE_FLOAT_4;
2515
2516 case GL_DEPTH_RANGE:
2517 if (index >= ctx->Const.MaxViewports)
2518 goto invalid_value;
2519 v->value_double_2[0] = ctx->ViewportArray[index].Near;
2520 v->value_double_2[1] = ctx->ViewportArray[index].Far;
2521 return TYPE_DOUBLEN_2;
2522
2523 case GL_TRANSFORM_FEEDBACK_BUFFER_START:
2524 if (index >= ctx->Const.MaxTransformFeedbackBuffers)
2525 goto invalid_value;
2526 if (!ctx->Extensions.EXT_transform_feedback)
2527 goto invalid_enum;
2528 v->value_int64 = ctx->TransformFeedback.CurrentObject->Offset[index];
2529 return TYPE_INT64;
2530
2531 case GL_TRANSFORM_FEEDBACK_BUFFER_SIZE:
2532 if (index >= ctx->Const.MaxTransformFeedbackBuffers)
2533 goto invalid_value;
2534 if (!ctx->Extensions.EXT_transform_feedback)
2535 goto invalid_enum;
2536 v->value_int64
2537 = ctx->TransformFeedback.CurrentObject->RequestedSize[index];
2538 return TYPE_INT64;
2539
2540 case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING:
2541 if (index >= ctx->Const.MaxTransformFeedbackBuffers)
2542 goto invalid_value;
2543 if (!ctx->Extensions.EXT_transform_feedback)
2544 goto invalid_enum;
2545 v->value_int = ctx->TransformFeedback.CurrentObject->BufferNames[index];
2546 return TYPE_INT;
2547
2548 case GL_UNIFORM_BUFFER_BINDING:
2549 if (index >= ctx->Const.MaxUniformBufferBindings)
2550 goto invalid_value;
2551 if (!ctx->Extensions.ARB_uniform_buffer_object)
2552 goto invalid_enum;
2553 buf = ctx->UniformBufferBindings[index].BufferObject;
2554 v->value_int = buf ? buf->Name : 0;
2555 return TYPE_INT;
2556
2557 case GL_UNIFORM_BUFFER_START:
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].Offset < 0 ? 0 :
2563 ctx->UniformBufferBindings[index].Offset;
2564 return TYPE_INT;
2565
2566 case GL_UNIFORM_BUFFER_SIZE:
2567 if (index >= ctx->Const.MaxUniformBufferBindings)
2568 goto invalid_value;
2569 if (!ctx->Extensions.ARB_uniform_buffer_object)
2570 goto invalid_enum;
2571 v->value_int = ctx->UniformBufferBindings[index].Size < 0 ? 0 :
2572 ctx->UniformBufferBindings[index].Size;
2573 return TYPE_INT;
2574
2575 /* ARB_shader_storage_buffer_object */
2576 case GL_SHADER_STORAGE_BUFFER_BINDING:
2577 if (!ctx->Extensions.ARB_shader_storage_buffer_object)
2578 goto invalid_enum;
2579 if (index >= ctx->Const.MaxShaderStorageBufferBindings)
2580 goto invalid_value;
2581 buf = ctx->ShaderStorageBufferBindings[index].BufferObject;
2582 v->value_int = buf ? buf->Name : 0;
2583 return TYPE_INT;
2584
2585 case GL_SHADER_STORAGE_BUFFER_START:
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].Offset < 0 ? 0 :
2591 ctx->ShaderStorageBufferBindings[index].Offset;
2592 return TYPE_INT;
2593
2594 case GL_SHADER_STORAGE_BUFFER_SIZE:
2595 if (!ctx->Extensions.ARB_shader_storage_buffer_object)
2596 goto invalid_enum;
2597 if (index >= ctx->Const.MaxShaderStorageBufferBindings)
2598 goto invalid_value;
2599 v->value_int = ctx->ShaderStorageBufferBindings[index].Size < 0 ? 0 :
2600 ctx->ShaderStorageBufferBindings[index].Size;
2601 return TYPE_INT;
2602
2603 /* ARB_texture_multisample / GL3.2 */
2604 case GL_SAMPLE_MASK_VALUE:
2605 if (index != 0)
2606 goto invalid_value;
2607 if (!ctx->Extensions.ARB_texture_multisample)
2608 goto invalid_enum;
2609 v->value_int = ctx->Multisample.SampleMaskValue;
2610 return TYPE_INT;
2611
2612 case GL_ATOMIC_COUNTER_BUFFER_BINDING:
2613 if (!ctx->Extensions.ARB_shader_atomic_counters)
2614 goto invalid_enum;
2615 if (index >= ctx->Const.MaxAtomicBufferBindings)
2616 goto invalid_value;
2617 buf = ctx->AtomicBufferBindings[index].BufferObject;
2618 v->value_int = buf ? buf->Name : 0;
2619 return TYPE_INT;
2620
2621 case GL_ATOMIC_COUNTER_BUFFER_START:
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].Offset < 0 ? 0 :
2627 ctx->AtomicBufferBindings[index].Offset;
2628 return TYPE_INT64;
2629
2630 case GL_ATOMIC_COUNTER_BUFFER_SIZE:
2631 if (!ctx->Extensions.ARB_shader_atomic_counters)
2632 goto invalid_enum;
2633 if (index >= ctx->Const.MaxAtomicBufferBindings)
2634 goto invalid_value;
2635 v->value_int64 = ctx->AtomicBufferBindings[index].Size < 0 ? 0 :
2636 ctx->AtomicBufferBindings[index].Size;
2637 return TYPE_INT64;
2638
2639 case GL_VERTEX_BINDING_DIVISOR:
2640 if ((!_mesa_is_desktop_gl(ctx) || !ctx->Extensions.ARB_instanced_arrays) &&
2641 !_mesa_is_gles31(ctx))
2642 goto invalid_enum;
2643 if (index >= ctx->Const.Program[MESA_SHADER_VERTEX].MaxAttribs)
2644 goto invalid_value;
2645 v->value_int = ctx->Array.VAO->BufferBinding[VERT_ATTRIB_GENERIC(index)].InstanceDivisor;
2646 return TYPE_INT;
2647
2648 case GL_VERTEX_BINDING_OFFSET:
2649 if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles31(ctx))
2650 goto invalid_enum;
2651 if (index >= ctx->Const.Program[MESA_SHADER_VERTEX].MaxAttribs)
2652 goto invalid_value;
2653 v->value_int = ctx->Array.VAO->BufferBinding[VERT_ATTRIB_GENERIC(index)].Offset;
2654 return TYPE_INT;
2655
2656 case GL_VERTEX_BINDING_STRIDE:
2657 if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles31(ctx))
2658 goto invalid_enum;
2659 if (index >= ctx->Const.Program[MESA_SHADER_VERTEX].MaxAttribs)
2660 goto invalid_value;
2661 v->value_int = ctx->Array.VAO->BufferBinding[VERT_ATTRIB_GENERIC(index)].Stride;
2662 return TYPE_INT;
2663
2664 case GL_VERTEX_BINDING_BUFFER:
2665 if (ctx->API == API_OPENGLES2 && ctx->Version < 31)
2666 goto invalid_enum;
2667 if (index >= ctx->Const.Program[MESA_SHADER_VERTEX].MaxAttribs)
2668 goto invalid_value;
2669 buf = ctx->Array.VAO->BufferBinding[VERT_ATTRIB_GENERIC(index)].BufferObj;
2670 v->value_int = buf ? buf->Name : 0;
2671 return TYPE_INT;
2672
2673 /* ARB_shader_image_load_store */
2674 case GL_IMAGE_BINDING_NAME: {
2675 struct gl_texture_object *t;
2676
2677 if (!ctx->Extensions.ARB_shader_image_load_store)
2678 goto invalid_enum;
2679 if (index >= ctx->Const.MaxImageUnits)
2680 goto invalid_value;
2681
2682 t = ctx->ImageUnits[index].TexObj;
2683 v->value_int = (t ? t->Name : 0);
2684 return TYPE_INT;
2685 }
2686
2687 case GL_IMAGE_BINDING_LEVEL:
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].Level;
2694 return TYPE_INT;
2695
2696 case GL_IMAGE_BINDING_LAYERED:
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].Layered;
2703 return TYPE_INT;
2704
2705 case GL_IMAGE_BINDING_LAYER:
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].Layer;
2712 return TYPE_INT;
2713
2714 case GL_IMAGE_BINDING_ACCESS:
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].Access;
2721 return TYPE_INT;
2722
2723 case GL_IMAGE_BINDING_FORMAT:
2724 if (!ctx->Extensions.ARB_shader_image_load_store)
2725 goto invalid_enum;
2726 if (index >= ctx->Const.MaxImageUnits)
2727 goto invalid_value;
2728
2729 v->value_int = ctx->ImageUnits[index].Format;
2730 return TYPE_INT;
2731
2732 /* ARB_direct_state_access */
2733 case GL_TEXTURE_BINDING_1D:
2734 case GL_TEXTURE_BINDING_1D_ARRAY:
2735 case GL_TEXTURE_BINDING_2D:
2736 case GL_TEXTURE_BINDING_2D_ARRAY:
2737 case GL_TEXTURE_BINDING_2D_MULTISAMPLE:
2738 case GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY:
2739 case GL_TEXTURE_BINDING_3D:
2740 case GL_TEXTURE_BINDING_BUFFER:
2741 case GL_TEXTURE_BINDING_CUBE_MAP:
2742 case GL_TEXTURE_BINDING_CUBE_MAP_ARRAY:
2743 case GL_TEXTURE_BINDING_RECTANGLE: {
2744 int target;
2745
2746 target = tex_binding_to_index(ctx, pname);
2747 if (target < 0)
2748 goto invalid_enum;
2749 if (index >= _mesa_max_tex_unit(ctx))
2750 goto invalid_value;
2751
2752 v->value_int = ctx->Texture.Unit[index].CurrentTex[target]->Name;
2753 return TYPE_INT;
2754 }
2755
2756 case GL_SAMPLER_BINDING: {
2757 struct gl_sampler_object *samp;
2758
2759 if (!_mesa_is_desktop_gl(ctx) || ctx->Version < 33)
2760 goto invalid_enum;
2761 if (index >= _mesa_max_tex_unit(ctx))
2762 goto invalid_value;
2763
2764 samp = ctx->Texture.Unit[index].Sampler;
2765 v->value_int = samp ? samp->Name : 0;
2766 return TYPE_INT;
2767 }
2768
2769 case GL_MAX_COMPUTE_WORK_GROUP_COUNT:
2770 if (!_mesa_has_compute_shaders(ctx))
2771 goto invalid_enum;
2772 if (index >= 3)
2773 goto invalid_value;
2774 v->value_int = ctx->Const.MaxComputeWorkGroupCount[index];
2775 return TYPE_INT;
2776
2777 case GL_MAX_COMPUTE_WORK_GROUP_SIZE:
2778 if (!_mesa_has_compute_shaders(ctx))
2779 goto invalid_enum;
2780 if (index >= 3)
2781 goto invalid_value;
2782 v->value_int = ctx->Const.MaxComputeWorkGroupSize[index];
2783 return TYPE_INT;
2784
2785 /* ARB_compute_variable_group_size */
2786 case GL_MAX_COMPUTE_VARIABLE_GROUP_SIZE_ARB:
2787 if (!ctx->Extensions.ARB_compute_variable_group_size)
2788 goto invalid_enum;
2789 if (index >= 3)
2790 goto invalid_value;
2791 v->value_int = ctx->Const.MaxComputeVariableGroupSize[index];
2792 return TYPE_INT;
2793
2794 /* GL_EXT_external_objects */
2795 case GL_NUM_DEVICE_UUIDS_EXT:
2796 v->value_int = 1;
2797 return TYPE_INT;
2798 case GL_DRIVER_UUID_EXT:
2799 if (index >= 1)
2800 goto invalid_value;
2801 _mesa_get_driver_uuid(ctx, v->value_int_4);
2802 return TYPE_INT_4;
2803 case GL_DEVICE_UUID_EXT:
2804 if (index >= 1)
2805 goto invalid_value;
2806 _mesa_get_device_uuid(ctx, v->value_int_4);
2807 return TYPE_INT_4;
2808 /* GL_EXT_direct_state_access */
2809 case GL_TEXTURE_1D:
2810 case GL_TEXTURE_2D:
2811 case GL_TEXTURE_3D:
2812 case GL_TEXTURE_CUBE_MAP:
2813 case GL_TEXTURE_GEN_S:
2814 case GL_TEXTURE_GEN_T:
2815 case GL_TEXTURE_GEN_R:
2816 case GL_TEXTURE_GEN_Q:
2817 case GL_TEXTURE_RECTANGLE_ARB: {
2818 GLuint curTexUnitSave;
2819 if (index >= _mesa_max_tex_unit(ctx))
2820 goto invalid_enum;
2821 curTexUnitSave = ctx->Texture.CurrentUnit;
2822 _mesa_ActiveTexture_no_error(GL_TEXTURE0 + index);
2823 v->value_int = _mesa_IsEnabled(pname);
2824 _mesa_ActiveTexture_no_error(GL_TEXTURE0 + curTexUnitSave);
2825 return TYPE_INT;
2826 }
2827 case GL_TEXTURE_COORD_ARRAY: {
2828 GLuint curTexUnitSave;
2829 if (index >= ctx->Const.MaxTextureCoordUnits)
2830 goto invalid_enum;
2831 curTexUnitSave = ctx->Array.ActiveTexture;
2832 _mesa_ClientActiveTexture(GL_TEXTURE0 + index);
2833 v->value_int = _mesa_IsEnabled(pname);
2834 _mesa_ClientActiveTexture(GL_TEXTURE0 + curTexUnitSave);
2835 return TYPE_INT;
2836 }
2837 case GL_TEXTURE_MATRIX:
2838 if (index >= ARRAY_SIZE(ctx->TextureMatrixStack))
2839 goto invalid_enum;
2840 v->value_matrix = ctx->TextureMatrixStack[index].Top;
2841 return TYPE_MATRIX;
2842 case GL_TRANSPOSE_TEXTURE_MATRIX:
2843 if (index >= ARRAY_SIZE(ctx->TextureMatrixStack))
2844 goto invalid_enum;
2845 v->value_matrix = ctx->TextureMatrixStack[index].Top;
2846 return TYPE_MATRIX_T;
2847 /* GL_NV_viewport_swizzle */
2848 case GL_VIEWPORT_SWIZZLE_X_NV:
2849 if (!ctx->Extensions.NV_viewport_swizzle)
2850 goto invalid_enum;
2851 if (index >= ctx->Const.MaxViewports)
2852 goto invalid_value;
2853 v->value_int = ctx->ViewportArray[index].SwizzleX;
2854 return TYPE_INT;
2855 case GL_VIEWPORT_SWIZZLE_Y_NV:
2856 if (!ctx->Extensions.NV_viewport_swizzle)
2857 goto invalid_enum;
2858 if (index >= ctx->Const.MaxViewports)
2859 goto invalid_value;
2860 v->value_int = ctx->ViewportArray[index].SwizzleY;
2861 return TYPE_INT;
2862 case GL_VIEWPORT_SWIZZLE_Z_NV:
2863 if (!ctx->Extensions.NV_viewport_swizzle)
2864 goto invalid_enum;
2865 if (index >= ctx->Const.MaxViewports)
2866 goto invalid_value;
2867 v->value_int = ctx->ViewportArray[index].SwizzleZ;
2868 return TYPE_INT;
2869 case GL_VIEWPORT_SWIZZLE_W_NV:
2870 if (!ctx->Extensions.NV_viewport_swizzle)
2871 goto invalid_enum;
2872 if (index >= ctx->Const.MaxViewports)
2873 goto invalid_value;
2874 v->value_int = ctx->ViewportArray[index].SwizzleW;
2875 return TYPE_INT;
2876 }
2877
2878 invalid_enum:
2879 _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func,
2880 _mesa_enum_to_string(pname));
2881 return TYPE_INVALID;
2882 invalid_value:
2883 _mesa_error(ctx, GL_INVALID_VALUE, "%s(pname=%s)", func,
2884 _mesa_enum_to_string(pname));
2885 return TYPE_INVALID;
2886 }
2887
2888 void GLAPIENTRY
2889 _mesa_GetBooleani_v( GLenum pname, GLuint index, GLboolean *params )
2890 {
2891 union value v;
2892 enum value_type type =
2893 find_value_indexed("glGetBooleani_v", pname, index, &v);
2894
2895 switch (type) {
2896 case TYPE_INT:
2897 case TYPE_UINT:
2898 params[0] = INT_TO_BOOLEAN(v.value_int);
2899 break;
2900 case TYPE_INT_4:
2901 case TYPE_UINT_4:
2902 params[0] = INT_TO_BOOLEAN(v.value_int_4[0]);
2903 params[1] = INT_TO_BOOLEAN(v.value_int_4[1]);
2904 params[2] = INT_TO_BOOLEAN(v.value_int_4[2]);
2905 params[3] = INT_TO_BOOLEAN(v.value_int_4[3]);
2906 break;
2907 case TYPE_INT64:
2908 params[0] = INT64_TO_BOOLEAN(v.value_int64);
2909 break;
2910 default:
2911 ; /* nothing - GL error was recorded */
2912 }
2913 }
2914
2915 void GLAPIENTRY
2916 _mesa_GetIntegeri_v( GLenum pname, GLuint index, GLint *params )
2917 {
2918 union value v;
2919 enum value_type type =
2920 find_value_indexed("glGetIntegeri_v", pname, index, &v);
2921
2922 switch (type) {
2923 case TYPE_FLOAT_4:
2924 case TYPE_FLOATN_4:
2925 params[3] = IROUND(v.value_float_4[3]);
2926 case TYPE_FLOAT_3:
2927 case TYPE_FLOATN_3:
2928 params[2] = IROUND(v.value_float_4[2]);
2929 case TYPE_FLOAT_2:
2930 case TYPE_FLOATN_2:
2931 params[1] = IROUND(v.value_float_4[1]);
2932 case TYPE_FLOAT:
2933 case TYPE_FLOATN:
2934 params[0] = IROUND(v.value_float_4[0]);
2935 break;
2936
2937 case TYPE_DOUBLEN_2:
2938 params[1] = IROUND(v.value_double_2[1]);
2939 case TYPE_DOUBLEN:
2940 params[0] = IROUND(v.value_double_2[0]);
2941 break;
2942
2943 case TYPE_INT:
2944 case TYPE_UINT:
2945 params[0] = v.value_int;
2946 break;
2947 case TYPE_INT_4:
2948 case TYPE_UINT_4:
2949 params[0] = v.value_int_4[0];
2950 params[1] = v.value_int_4[1];
2951 params[2] = v.value_int_4[2];
2952 params[3] = v.value_int_4[3];
2953 break;
2954 case TYPE_INT64:
2955 params[0] = INT64_TO_INT(v.value_int64);
2956 break;
2957 default:
2958 ; /* nothing - GL error was recorded */
2959 }
2960 }
2961
2962 void GLAPIENTRY
2963 _mesa_GetInteger64i_v( GLenum pname, GLuint index, GLint64 *params )
2964 {
2965 union value v;
2966 enum value_type type =
2967 find_value_indexed("glGetInteger64i_v", pname, index, &v);
2968
2969 switch (type) {
2970 case TYPE_INT:
2971 params[0] = v.value_int;
2972 break;
2973 case TYPE_INT_4:
2974 params[0] = v.value_int_4[0];
2975 params[1] = v.value_int_4[1];
2976 params[2] = v.value_int_4[2];
2977 params[3] = v.value_int_4[3];
2978 break;
2979 case TYPE_UINT:
2980 params[0] = (GLuint) v.value_int;
2981 break;
2982 case TYPE_UINT_4:
2983 params[0] = (GLuint) v.value_int_4[0];
2984 params[1] = (GLuint) v.value_int_4[1];
2985 params[2] = (GLuint) v.value_int_4[2];
2986 params[3] = (GLuint) v.value_int_4[3];
2987 break;
2988 case TYPE_INT64:
2989 params[0] = v.value_int64;
2990 break;
2991 default:
2992 ; /* nothing - GL error was recorded */
2993 }
2994 }
2995
2996 void GLAPIENTRY
2997 _mesa_GetFloati_v(GLenum pname, GLuint index, GLfloat *params)
2998 {
2999 int i;
3000 GLmatrix *m;
3001 union value v;
3002 enum value_type type =
3003 find_value_indexed("glGetFloati_v", pname, index, &v);
3004
3005 switch (type) {
3006 case TYPE_FLOAT_4:
3007 case TYPE_FLOATN_4:
3008 params[3] = v.value_float_4[3];
3009 case TYPE_FLOAT_3:
3010 case TYPE_FLOATN_3:
3011 params[2] = v.value_float_4[2];
3012 case TYPE_FLOAT_2:
3013 case TYPE_FLOATN_2:
3014 params[1] = v.value_float_4[1];
3015 case TYPE_FLOAT:
3016 case TYPE_FLOATN:
3017 params[0] = v.value_float_4[0];
3018 break;
3019
3020 case TYPE_DOUBLEN_2:
3021 params[1] = (GLfloat) v.value_double_2[1];
3022 case TYPE_DOUBLEN:
3023 params[0] = (GLfloat) v.value_double_2[0];
3024 break;
3025
3026 case TYPE_INT_4:
3027 params[3] = (GLfloat) v.value_int_4[3];
3028 case TYPE_INT_3:
3029 params[2] = (GLfloat) v.value_int_4[2];
3030 case TYPE_INT_2:
3031 case TYPE_ENUM_2:
3032 params[1] = (GLfloat) v.value_int_4[1];
3033 case TYPE_INT:
3034 case TYPE_ENUM:
3035 case TYPE_ENUM16:
3036 params[0] = (GLfloat) v.value_int_4[0];
3037 break;
3038
3039 case TYPE_INT_N:
3040 for (i = 0; i < v.value_int_n.n; i++)
3041 params[i] = (GLfloat) v.value_int_n.ints[i];
3042 break;
3043
3044 case TYPE_UINT_4:
3045 params[3] = (GLfloat) ((GLuint) v.value_int_4[3]);
3046 case TYPE_UINT_3:
3047 params[2] = (GLfloat) ((GLuint) v.value_int_4[2]);
3048 case TYPE_UINT_2:
3049 params[1] = (GLfloat) ((GLuint) v.value_int_4[1]);
3050 case TYPE_UINT:
3051 params[0] = (GLfloat) ((GLuint) v.value_int_4[0]);
3052 break;
3053
3054 case TYPE_INT64:
3055 params[0] = (GLfloat) v.value_int64;
3056 break;
3057
3058 case TYPE_BOOLEAN:
3059 params[0] = BOOLEAN_TO_FLOAT(v.value_bool);
3060 break;
3061
3062 case TYPE_UBYTE:
3063 params[0] = (GLfloat) v.value_ubyte;
3064 break;
3065
3066 case TYPE_SHORT:
3067 params[0] = (GLfloat) v.value_short;
3068 break;
3069
3070 case TYPE_MATRIX:
3071 m = *(GLmatrix **) &v;
3072 for (i = 0; i < 16; i++)
3073 params[i] = m->m[i];
3074 break;
3075
3076 case TYPE_MATRIX_T:
3077 m = *(GLmatrix **) &v;
3078 for (i = 0; i < 16; i++)
3079 params[i] = m->m[transpose[i]];
3080 break;
3081
3082 default:
3083 ;
3084 }
3085 }
3086
3087 void GLAPIENTRY
3088 _mesa_GetDoublei_v(GLenum pname, GLuint index, GLdouble *params)
3089 {
3090 int i;
3091 GLmatrix *m;
3092 union value v;
3093 enum value_type type =
3094 find_value_indexed("glGetDoublei_v", pname, index, &v);
3095
3096 switch (type) {
3097 case TYPE_FLOAT_4:
3098 case TYPE_FLOATN_4:
3099 params[3] = (GLdouble) v.value_float_4[3];
3100 case TYPE_FLOAT_3:
3101 case TYPE_FLOATN_3:
3102 params[2] = (GLdouble) v.value_float_4[2];
3103 case TYPE_FLOAT_2:
3104 case TYPE_FLOATN_2:
3105 params[1] = (GLdouble) v.value_float_4[1];
3106 case TYPE_FLOAT:
3107 case TYPE_FLOATN:
3108 params[0] = (GLdouble) v.value_float_4[0];
3109 break;
3110
3111 case TYPE_DOUBLEN_2:
3112 params[1] = v.value_double_2[1];
3113 case TYPE_DOUBLEN:
3114 params[0] = v.value_double_2[0];
3115 break;
3116
3117 case TYPE_INT_4:
3118 params[3] = (GLdouble) v.value_int_4[3];
3119 case TYPE_INT_3:
3120 params[2] = (GLdouble) v.value_int_4[2];
3121 case TYPE_INT_2:
3122 case TYPE_ENUM_2:
3123 params[1] = (GLdouble) v.value_int_4[1];
3124 case TYPE_INT:
3125 case TYPE_ENUM:
3126 case TYPE_ENUM16:
3127 params[0] = (GLdouble) v.value_int_4[0];
3128 break;
3129
3130 case TYPE_INT_N:
3131 for (i = 0; i < v.value_int_n.n; i++)
3132 params[i] = (GLdouble) v.value_int_n.ints[i];
3133 break;
3134
3135 case TYPE_UINT_4:
3136 params[3] = (GLdouble) ((GLuint) v.value_int_4[3]);
3137 case TYPE_UINT_3:
3138 params[2] = (GLdouble) ((GLuint) v.value_int_4[2]);
3139 case TYPE_UINT_2:
3140 params[1] = (GLdouble) ((GLuint) v.value_int_4[1]);
3141 case TYPE_UINT:
3142 params[0] = (GLdouble) ((GLuint) v.value_int_4[0]);
3143 break;
3144
3145 case TYPE_INT64:
3146 params[0] = (GLdouble) v.value_int64;
3147 break;
3148
3149 case TYPE_BOOLEAN:
3150 params[0] = (GLdouble) BOOLEAN_TO_FLOAT(v.value_bool);
3151 break;
3152
3153 case TYPE_UBYTE:
3154 params[0] = (GLdouble) v.value_ubyte;
3155 break;
3156
3157 case TYPE_SHORT:
3158 params[0] = (GLdouble) v.value_short;
3159 break;
3160
3161 case TYPE_MATRIX:
3162 m = *(GLmatrix **) &v;
3163 for (i = 0; i < 16; i++)
3164 params[i] = (GLdouble) m->m[i];
3165 break;
3166
3167 case TYPE_MATRIX_T:
3168 m = *(GLmatrix **) &v;
3169 for (i = 0; i < 16; i++)
3170 params[i] = (GLdouble) m->m[transpose[i]];
3171 break;
3172
3173 default:
3174 ;
3175 }
3176 }
3177
3178 void GLAPIENTRY
3179 _mesa_GetUnsignedBytei_vEXT(GLenum target, GLuint index, GLubyte *data)
3180 {
3181 GLsizei size;
3182 union value v;
3183 enum value_type type;
3184 const char *func = "glGetUnsignedBytei_vEXT";
3185
3186 GET_CURRENT_CONTEXT(ctx);
3187
3188 if (!ctx->Extensions.EXT_memory_object) {
3189 _mesa_error(ctx, GL_INVALID_OPERATION, "%s(unsupported)", func);
3190 return;
3191 }
3192
3193 type = find_value_indexed(func, target, index, &v);
3194 size = get_value_size(type, &v);
3195 if (size <= 0) {
3196 _mesa_problem(ctx, "invalid value type in GetUnsignedBytei_vEXT()");
3197 }
3198
3199 switch (type) {
3200 case TYPE_UINT:
3201 case TYPE_INT:
3202 case TYPE_INT_2:
3203 case TYPE_UINT_2:
3204 case TYPE_INT_3:
3205 case TYPE_UINT_3:
3206 case TYPE_INT_4:
3207 case TYPE_UINT_4:
3208 case TYPE_INT64:
3209 case TYPE_ENUM16:
3210 case TYPE_ENUM:
3211 case TYPE_ENUM_2:
3212 case TYPE_BOOLEAN:
3213 case TYPE_UBYTE:
3214 case TYPE_SHORT:
3215 case TYPE_FLOAT:
3216 case TYPE_FLOATN:
3217 case TYPE_FLOAT_2:
3218 case TYPE_FLOATN_2:
3219 case TYPE_FLOAT_3:
3220 case TYPE_FLOATN_3:
3221 case TYPE_FLOAT_4:
3222 case TYPE_FLOATN_4:
3223 case TYPE_FLOAT_8:
3224 case TYPE_DOUBLEN:
3225 case TYPE_DOUBLEN_2:
3226 case TYPE_MATRIX:
3227 case TYPE_MATRIX_T:
3228 memcpy(data, &v.value_int, size);
3229 break;
3230 case TYPE_INT_N:
3231 memcpy(data, &v.value_int_n.ints, size);
3232 break;
3233 default:
3234 break; /* nothing - GL error was recorded */
3235 }
3236 }
3237
3238 void GLAPIENTRY
3239 _mesa_GetFixedv(GLenum pname, GLfixed *params)
3240 {
3241 const struct value_desc *d;
3242 union value v;
3243 GLmatrix *m;
3244 int shift, i;
3245 void *p;
3246
3247 d = find_value("glGetDoublev", pname, &p, &v);
3248 switch (d->type) {
3249 case TYPE_INVALID:
3250 break;
3251 case TYPE_CONST:
3252 params[0] = INT_TO_FIXED(d->offset);
3253 break;
3254
3255 case TYPE_FLOAT_4:
3256 case TYPE_FLOATN_4:
3257 params[3] = FLOAT_TO_FIXED(((GLfloat *) p)[3]);
3258 case TYPE_FLOAT_3:
3259 case TYPE_FLOATN_3:
3260 params[2] = FLOAT_TO_FIXED(((GLfloat *) p)[2]);
3261 case TYPE_FLOAT_2:
3262 case TYPE_FLOATN_2:
3263 params[1] = FLOAT_TO_FIXED(((GLfloat *) p)[1]);
3264 case TYPE_FLOAT:
3265 case TYPE_FLOATN:
3266 params[0] = FLOAT_TO_FIXED(((GLfloat *) p)[0]);
3267 break;
3268
3269 case TYPE_DOUBLEN_2:
3270 params[1] = FLOAT_TO_FIXED(((GLdouble *) p)[1]);
3271 case TYPE_DOUBLEN:
3272 params[0] = FLOAT_TO_FIXED(((GLdouble *) p)[0]);
3273 break;
3274
3275 case TYPE_INT_4:
3276 case TYPE_UINT_4:
3277 params[3] = INT_TO_FIXED(((GLint *) p)[3]);
3278 case TYPE_INT_3:
3279 case TYPE_UINT_3:
3280 params[2] = INT_TO_FIXED(((GLint *) p)[2]);
3281 case TYPE_INT_2:
3282 case TYPE_UINT_2:
3283 case TYPE_ENUM_2:
3284 params[1] = INT_TO_FIXED(((GLint *) p)[1]);
3285 case TYPE_INT:
3286 case TYPE_UINT:
3287 case TYPE_ENUM:
3288 params[0] = INT_TO_FIXED(((GLint *) p)[0]);
3289 break;
3290
3291 case TYPE_ENUM16:
3292 params[0] = INT_TO_FIXED((GLint)(((GLenum16 *) p)[0]));
3293 break;
3294
3295 case TYPE_INT_N:
3296 for (i = 0; i < v.value_int_n.n; i++)
3297 params[i] = INT_TO_FIXED(v.value_int_n.ints[i]);
3298 break;
3299
3300 case TYPE_INT64:
3301 params[0] = ((GLint64 *) p)[0];
3302 break;
3303
3304 case TYPE_BOOLEAN:
3305 params[0] = BOOLEAN_TO_FIXED(((GLboolean*) p)[0]);
3306 break;
3307
3308 case TYPE_UBYTE:
3309 params[0] = INT_TO_FIXED(((GLubyte *) p)[0]);
3310 break;
3311
3312 case TYPE_SHORT:
3313 params[0] = INT_TO_FIXED(((GLshort *) p)[0]);
3314 break;
3315
3316 case TYPE_MATRIX:
3317 m = *(GLmatrix **) p;
3318 for (i = 0; i < 16; i++)
3319 params[i] = FLOAT_TO_FIXED(m->m[i]);
3320 break;
3321
3322 case TYPE_MATRIX_T:
3323 m = *(GLmatrix **) p;
3324 for (i = 0; i < 16; i++)
3325 params[i] = FLOAT_TO_FIXED(m->m[transpose[i]]);
3326 break;
3327
3328 case TYPE_BIT_0:
3329 case TYPE_BIT_1:
3330 case TYPE_BIT_2:
3331 case TYPE_BIT_3:
3332 case TYPE_BIT_4:
3333 case TYPE_BIT_5:
3334 case TYPE_BIT_6:
3335 case TYPE_BIT_7:
3336 shift = d->type - TYPE_BIT_0;
3337 params[0] = BOOLEAN_TO_FIXED((*(GLbitfield *) p >> shift) & 1);
3338 break;
3339 }
3340 }