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main: add INTEL_conservative_rasterization enum query support
[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 "state.h"
38 #include "texcompress.h"
39 #include "texstate.h"
40 #include "framebuffer.h"
41 #include "samplerobj.h"
42 #include "stencil.h"
43
44 /* This is a table driven implemetation of the glGet*v() functions.
45 * The basic idea is that most getters just look up an int somewhere
46 * in struct gl_context and then convert it to a bool or float according to
47 * which of glGetIntegerv() glGetBooleanv() etc is being called.
48 * Instead of generating code to do this, we can just record the enum
49 * value and the offset into struct gl_context in an array of structs. Then
50 * in glGet*(), we lookup the struct for the enum in question, and use
51 * the offset to get the int we need.
52 *
53 * Sometimes we need to look up a float, a boolean, a bit in a
54 * bitfield, a matrix or other types instead, so we need to track the
55 * type of the value in struct gl_context. And sometimes the value isn't in
56 * struct gl_context but in the drawbuffer, the array object, current texture
57 * unit, or maybe it's a computed value. So we need to also track
58 * where or how to find the value. Finally, we sometimes need to
59 * check that one of a number of extensions are enabled, the GL
60 * version or flush or call _mesa_update_state(). This is done by
61 * attaching optional extra information to the value description
62 * struct, it's sort of like an array of opcodes that describe extra
63 * checks or actions.
64 *
65 * Putting all this together we end up with struct value_desc below,
66 * and with a couple of macros to help, the table of struct value_desc
67 * is about as concise as the specification in the old python script.
68 */
69
70 #define FLOAT_TO_BOOLEAN(X) ( (X) ? GL_TRUE : GL_FALSE )
71 #define FLOAT_TO_FIXED(F) ( ((F) * 65536.0f > INT_MAX) ? INT_MAX : \
72 ((F) * 65536.0f < INT_MIN) ? INT_MIN : \
73 (GLint) ((F) * 65536.0f) )
74
75 #define INT_TO_BOOLEAN(I) ( (I) ? GL_TRUE : GL_FALSE )
76 #define INT_TO_FIXED(I) ( ((I) > SHRT_MAX) ? INT_MAX : \
77 ((I) < SHRT_MIN) ? INT_MIN : \
78 (GLint) ((I) * 65536) )
79
80 #define INT64_TO_BOOLEAN(I) ( (I) ? GL_TRUE : GL_FALSE )
81 #define INT64_TO_INT(I) ( (GLint)((I > INT_MAX) ? INT_MAX : ((I < INT_MIN) ? INT_MIN : (I))) )
82
83 #define BOOLEAN_TO_INT(B) ( (GLint) (B) )
84 #define BOOLEAN_TO_INT64(B) ( (GLint64) (B) )
85 #define BOOLEAN_TO_FLOAT(B) ( (B) ? 1.0F : 0.0F )
86 #define BOOLEAN_TO_FIXED(B) ( (GLint) ((B) ? 1 : 0) << 16 )
87
88 #define ENUM_TO_INT64(E) ( (GLint64) (E) )
89 #define ENUM_TO_FIXED(E) (E)
90
91 enum value_type {
92 TYPE_INVALID,
93 TYPE_INT,
94 TYPE_INT_2,
95 TYPE_INT_3,
96 TYPE_INT_4,
97 TYPE_INT_N,
98 TYPE_INT64,
99 TYPE_ENUM,
100 TYPE_ENUM_2,
101 TYPE_BOOLEAN,
102 TYPE_BIT_0,
103 TYPE_BIT_1,
104 TYPE_BIT_2,
105 TYPE_BIT_3,
106 TYPE_BIT_4,
107 TYPE_BIT_5,
108 TYPE_BIT_6,
109 TYPE_BIT_7,
110 TYPE_FLOAT,
111 TYPE_FLOAT_2,
112 TYPE_FLOAT_3,
113 TYPE_FLOAT_4,
114 TYPE_FLOAT_8,
115 TYPE_FLOATN,
116 TYPE_FLOATN_2,
117 TYPE_FLOATN_3,
118 TYPE_FLOATN_4,
119 TYPE_DOUBLEN,
120 TYPE_DOUBLEN_2,
121 TYPE_MATRIX,
122 TYPE_MATRIX_T,
123 TYPE_CONST
124 };
125
126 enum value_location {
127 LOC_BUFFER,
128 LOC_CONTEXT,
129 LOC_ARRAY,
130 LOC_TEXUNIT,
131 LOC_CUSTOM
132 };
133
134 enum value_extra {
135 EXTRA_END = 0x8000,
136 EXTRA_VERSION_30,
137 EXTRA_VERSION_31,
138 EXTRA_VERSION_32,
139 EXTRA_VERSION_40,
140 EXTRA_API_GL,
141 EXTRA_API_GL_CORE,
142 EXTRA_API_ES2,
143 EXTRA_API_ES3,
144 EXTRA_API_ES31,
145 EXTRA_API_ES32,
146 EXTRA_NEW_BUFFERS,
147 EXTRA_NEW_FRAG_CLAMP,
148 EXTRA_VALID_DRAW_BUFFER,
149 EXTRA_VALID_TEXTURE_UNIT,
150 EXTRA_VALID_CLIP_DISTANCE,
151 EXTRA_FLUSH_CURRENT,
152 EXTRA_GLSL_130,
153 EXTRA_EXT_UBO_GS,
154 EXTRA_EXT_ATOMICS_GS,
155 EXTRA_EXT_SHADER_IMAGE_GS,
156 EXTRA_EXT_ATOMICS_TESS,
157 EXTRA_EXT_SHADER_IMAGE_TESS,
158 EXTRA_EXT_SSBO_GS,
159 EXTRA_EXT_FB_NO_ATTACH_GS,
160 EXTRA_EXT_ES_GS,
161 };
162
163 #define NO_EXTRA NULL
164 #define NO_OFFSET 0
165
166 struct value_desc {
167 GLenum pname;
168 GLubyte location; /**< enum value_location */
169 GLubyte type; /**< enum value_type */
170 int offset;
171 const int *extra;
172 };
173
174 union value {
175 GLfloat value_float;
176 GLfloat value_float_4[4];
177 GLdouble value_double_2[2];
178 GLmatrix *value_matrix;
179 GLint value_int;
180 GLint value_int_4[4];
181 GLint64 value_int64;
182 GLenum value_enum;
183
184 /* Sigh, see GL_COMPRESSED_TEXTURE_FORMATS_ARB handling */
185 struct {
186 GLint n, ints[100];
187 } value_int_n;
188 GLboolean value_bool;
189 };
190
191 #define BUFFER_FIELD(field, type) \
192 LOC_BUFFER, type, offsetof(struct gl_framebuffer, field)
193 #define CONTEXT_FIELD(field, type) \
194 LOC_CONTEXT, type, offsetof(struct gl_context, field)
195 #define ARRAY_FIELD(field, type) \
196 LOC_ARRAY, type, offsetof(struct gl_vertex_array_object, field)
197 #undef CONST /* already defined through windows.h */
198 #define CONST(value) \
199 LOC_CONTEXT, TYPE_CONST, value
200
201 #define BUFFER_INT(field) BUFFER_FIELD(field, TYPE_INT)
202 #define BUFFER_ENUM(field) BUFFER_FIELD(field, TYPE_ENUM)
203 #define BUFFER_BOOL(field) BUFFER_FIELD(field, TYPE_BOOLEAN)
204
205 #define CONTEXT_INT(field) CONTEXT_FIELD(field, TYPE_INT)
206 #define CONTEXT_INT2(field) CONTEXT_FIELD(field, TYPE_INT_2)
207 #define CONTEXT_INT64(field) CONTEXT_FIELD(field, TYPE_INT64)
208 #define CONTEXT_ENUM(field) CONTEXT_FIELD(field, TYPE_ENUM)
209 #define CONTEXT_ENUM2(field) CONTEXT_FIELD(field, TYPE_ENUM_2)
210 #define CONTEXT_BOOL(field) CONTEXT_FIELD(field, TYPE_BOOLEAN)
211 #define CONTEXT_BIT0(field) CONTEXT_FIELD(field, TYPE_BIT_0)
212 #define CONTEXT_BIT1(field) CONTEXT_FIELD(field, TYPE_BIT_1)
213 #define CONTEXT_BIT2(field) CONTEXT_FIELD(field, TYPE_BIT_2)
214 #define CONTEXT_BIT3(field) CONTEXT_FIELD(field, TYPE_BIT_3)
215 #define CONTEXT_BIT4(field) CONTEXT_FIELD(field, TYPE_BIT_4)
216 #define CONTEXT_BIT5(field) CONTEXT_FIELD(field, TYPE_BIT_5)
217 #define CONTEXT_BIT6(field) CONTEXT_FIELD(field, TYPE_BIT_6)
218 #define CONTEXT_BIT7(field) CONTEXT_FIELD(field, TYPE_BIT_7)
219 #define CONTEXT_FLOAT(field) CONTEXT_FIELD(field, TYPE_FLOAT)
220 #define CONTEXT_FLOAT2(field) CONTEXT_FIELD(field, TYPE_FLOAT_2)
221 #define CONTEXT_FLOAT3(field) CONTEXT_FIELD(field, TYPE_FLOAT_3)
222 #define CONTEXT_FLOAT4(field) CONTEXT_FIELD(field, TYPE_FLOAT_4)
223 #define CONTEXT_FLOAT8(field) CONTEXT_FIELD(field, TYPE_FLOAT_8)
224 #define CONTEXT_MATRIX(field) CONTEXT_FIELD(field, TYPE_MATRIX)
225 #define CONTEXT_MATRIX_T(field) CONTEXT_FIELD(field, TYPE_MATRIX_T)
226
227 #define ARRAY_INT(field) ARRAY_FIELD(field, TYPE_INT)
228 #define ARRAY_ENUM(field) ARRAY_FIELD(field, TYPE_ENUM)
229 #define ARRAY_BOOL(field) ARRAY_FIELD(field, TYPE_BOOLEAN)
230
231 #define EXT(f) \
232 offsetof(struct gl_extensions, f)
233
234 #define EXTRA_EXT(e) \
235 static const int extra_##e[] = { \
236 EXT(e), EXTRA_END \
237 }
238
239 #define EXTRA_EXT2(e1, e2) \
240 static const int extra_##e1##_##e2[] = { \
241 EXT(e1), EXT(e2), EXTRA_END \
242 }
243
244 /* The 'extra' mechanism is a way to specify extra checks (such as
245 * extensions or specific gl versions) or actions (flush current, new
246 * buffers) that we need to do before looking up an enum. We need to
247 * declare them all up front so we can refer to them in the value_desc
248 * structs below.
249 *
250 * Each EXTRA_ will be executed. For EXTRA_* enums of extensions and API
251 * versions, listing multiple ones in an array means an error will be thrown
252 * only if none of them are available. If you need to check for "AND"
253 * behavior, you would need to make a custom EXTRA_ enum.
254 */
255
256 static const int extra_new_buffers[] = {
257 EXTRA_NEW_BUFFERS,
258 EXTRA_END
259 };
260
261 static const int extra_new_frag_clamp[] = {
262 EXTRA_NEW_FRAG_CLAMP,
263 EXTRA_END
264 };
265
266 static const int extra_valid_draw_buffer[] = {
267 EXTRA_VALID_DRAW_BUFFER,
268 EXTRA_END
269 };
270
271 static const int extra_valid_texture_unit[] = {
272 EXTRA_VALID_TEXTURE_UNIT,
273 EXTRA_END
274 };
275
276 static const int extra_valid_clip_distance[] = {
277 EXTRA_VALID_CLIP_DISTANCE,
278 EXTRA_END
279 };
280
281 static const int extra_flush_current_valid_texture_unit[] = {
282 EXTRA_FLUSH_CURRENT,
283 EXTRA_VALID_TEXTURE_UNIT,
284 EXTRA_END
285 };
286
287 static const int extra_flush_current[] = {
288 EXTRA_FLUSH_CURRENT,
289 EXTRA_END
290 };
291
292 static const int extra_EXT_texture_integer_and_new_buffers[] = {
293 EXT(EXT_texture_integer),
294 EXTRA_NEW_BUFFERS,
295 EXTRA_END
296 };
297
298 static const int extra_GLSL_130_es3[] = {
299 EXTRA_GLSL_130,
300 EXTRA_API_ES3,
301 EXTRA_END
302 };
303
304 static const int extra_texture_buffer_object[] = {
305 EXTRA_API_GL_CORE,
306 EXTRA_VERSION_31,
307 EXT(ARB_texture_buffer_object),
308 EXTRA_END
309 };
310
311 static const int extra_ARB_transform_feedback2_api_es3[] = {
312 EXT(ARB_transform_feedback2),
313 EXTRA_API_ES3,
314 EXTRA_END
315 };
316
317 static const int extra_ARB_uniform_buffer_object_and_geometry_shader[] = {
318 EXTRA_EXT_UBO_GS,
319 EXTRA_END
320 };
321
322 static const int extra_ARB_ES2_compatibility_api_es2[] = {
323 EXT(ARB_ES2_compatibility),
324 EXTRA_API_ES2,
325 EXTRA_END
326 };
327
328 static const int extra_ARB_ES3_compatibility_api_es3[] = {
329 EXT(ARB_ES3_compatibility),
330 EXTRA_API_ES3,
331 EXTRA_END
332 };
333
334 static const int extra_EXT_framebuffer_sRGB_and_new_buffers[] = {
335 EXT(EXT_framebuffer_sRGB),
336 EXTRA_NEW_BUFFERS,
337 EXTRA_END
338 };
339
340 static const int extra_EXT_packed_float[] = {
341 EXT(EXT_packed_float),
342 EXTRA_NEW_BUFFERS,
343 EXTRA_END
344 };
345
346 static const int extra_EXT_texture_array_es3[] = {
347 EXT(EXT_texture_array),
348 EXTRA_API_ES3,
349 EXTRA_END
350 };
351
352 static const int extra_ARB_shader_atomic_counters_and_geometry_shader[] = {
353 EXTRA_EXT_ATOMICS_GS,
354 EXTRA_END
355 };
356
357 static const int extra_ARB_shader_image_load_store_and_geometry_shader[] = {
358 EXTRA_EXT_SHADER_IMAGE_GS,
359 EXTRA_END
360 };
361
362 static const int extra_ARB_shader_atomic_counters_and_tessellation[] = {
363 EXTRA_EXT_ATOMICS_TESS,
364 EXTRA_END
365 };
366
367 static const int extra_ARB_shader_image_load_store_and_tessellation[] = {
368 EXTRA_EXT_SHADER_IMAGE_TESS,
369 EXTRA_END
370 };
371
372 /* HACK: remove when ARB_compute_shader is actually supported */
373 static const int extra_ARB_compute_shader_es31[] = {
374 EXT(ARB_compute_shader),
375 EXTRA_API_ES31,
376 EXTRA_END
377 };
378
379 static const int extra_ARB_shader_storage_buffer_object_es31[] = {
380 EXT(ARB_shader_storage_buffer_object),
381 EXTRA_API_ES31,
382 EXTRA_END
383 };
384
385 static const int extra_ARB_shader_storage_buffer_object_and_geometry_shader[] = {
386 EXTRA_EXT_SSBO_GS,
387 EXTRA_END
388 };
389
390 static const int extra_ARB_shader_image_load_store_shader_storage_buffer_object_es31[] = {
391 EXT(ARB_shader_image_load_store),
392 EXT(ARB_shader_storage_buffer_object),
393 EXTRA_API_ES31,
394 EXTRA_END
395 };
396
397 static const int extra_ARB_framebuffer_no_attachments_and_geometry_shader[] = {
398 EXTRA_EXT_FB_NO_ATTACH_GS,
399 EXTRA_END
400 };
401
402 static const int extra_ARB_viewport_array_or_oes_geometry_shader[] = {
403 EXT(ARB_viewport_array),
404 EXTRA_EXT_ES_GS,
405 EXTRA_END
406 };
407
408 static const int extra_ARB_viewport_array_or_oes_viewport_array[] = {
409 EXT(ARB_viewport_array),
410 EXT(OES_viewport_array),
411 EXTRA_END
412 };
413
414 static const int extra_ARB_gpu_shader5_or_oes_geometry_shader[] = {
415 EXT(ARB_gpu_shader5),
416 EXTRA_EXT_ES_GS,
417 EXTRA_END
418 };
419
420 static const int extra_ARB_gpu_shader5_or_OES_sample_variables[] = {
421 EXT(ARB_gpu_shader5),
422 EXT(OES_sample_variables),
423 EXTRA_END
424 };
425
426 static const int extra_ES32[] = {
427 EXT(ARB_ES3_2_compatibility),
428 EXTRA_API_ES32,
429 EXTRA_END
430 };
431
432 static const int extra_KHR_robustness_or_GL[] = {
433 EXT(KHR_robustness),
434 EXTRA_API_GL,
435 EXTRA_API_GL_CORE,
436 EXTRA_END
437 };
438
439 static const int extra_INTEL_conservative_rasterization[] = {
440 EXT(INTEL_conservative_rasterization),
441 EXTRA_END
442 };
443
444 EXTRA_EXT(ARB_texture_cube_map);
445 EXTRA_EXT(EXT_texture_array);
446 EXTRA_EXT(NV_fog_distance);
447 EXTRA_EXT(EXT_texture_filter_anisotropic);
448 EXTRA_EXT(NV_point_sprite);
449 EXTRA_EXT(NV_texture_rectangle);
450 EXTRA_EXT(EXT_stencil_two_side);
451 EXTRA_EXT(EXT_depth_bounds_test);
452 EXTRA_EXT(ARB_depth_clamp);
453 EXTRA_EXT(ATI_fragment_shader);
454 EXTRA_EXT(EXT_provoking_vertex);
455 EXTRA_EXT(ARB_fragment_shader);
456 EXTRA_EXT(ARB_fragment_program);
457 EXTRA_EXT2(ARB_framebuffer_object, EXT_framebuffer_multisample);
458 EXTRA_EXT(ARB_seamless_cube_map);
459 EXTRA_EXT(ARB_sync);
460 EXTRA_EXT(ARB_vertex_shader);
461 EXTRA_EXT(EXT_transform_feedback);
462 EXTRA_EXT(ARB_transform_feedback3);
463 EXTRA_EXT(EXT_pixel_buffer_object);
464 EXTRA_EXT(ARB_vertex_program);
465 EXTRA_EXT2(NV_point_sprite, ARB_point_sprite);
466 EXTRA_EXT2(ARB_vertex_program, ARB_fragment_program);
467 EXTRA_EXT(ARB_color_buffer_float);
468 EXTRA_EXT(EXT_framebuffer_sRGB);
469 EXTRA_EXT(OES_EGL_image_external);
470 EXTRA_EXT(ARB_blend_func_extended);
471 EXTRA_EXT(ARB_uniform_buffer_object);
472 EXTRA_EXT(ARB_timer_query);
473 EXTRA_EXT2(ARB_texture_cube_map_array, OES_texture_cube_map_array);
474 EXTRA_EXT(ARB_texture_buffer_range);
475 EXTRA_EXT(ARB_texture_multisample);
476 EXTRA_EXT(ARB_texture_gather);
477 EXTRA_EXT(ARB_shader_atomic_counters);
478 EXTRA_EXT(ARB_draw_indirect);
479 EXTRA_EXT(ARB_shader_image_load_store);
480 EXTRA_EXT(ARB_viewport_array);
481 EXTRA_EXT(ARB_query_buffer_object);
482 EXTRA_EXT2(ARB_transform_feedback3, ARB_gpu_shader5);
483 EXTRA_EXT(INTEL_performance_query);
484 EXTRA_EXT(ARB_explicit_uniform_location);
485 EXTRA_EXT(ARB_clip_control);
486 EXTRA_EXT(EXT_polygon_offset_clamp);
487 EXTRA_EXT(ARB_framebuffer_no_attachments);
488 EXTRA_EXT(ARB_tessellation_shader);
489 EXTRA_EXT(ARB_shader_subroutine);
490 EXTRA_EXT(ARB_shader_storage_buffer_object);
491 EXTRA_EXT(ARB_indirect_parameters);
492 EXTRA_EXT(ATI_meminfo);
493 EXTRA_EXT(NVX_gpu_memory_info);
494 EXTRA_EXT(ARB_cull_distance);
495 EXTRA_EXT(EXT_window_rectangles);
496 EXTRA_EXT(KHR_blend_equation_advanced_coherent);
497 EXTRA_EXT(OES_primitive_bounding_box);
498 EXTRA_EXT(ARB_compute_variable_group_size);
499 EXTRA_EXT(KHR_robustness);
500
501 static const int
502 extra_ARB_color_buffer_float_or_glcore[] = {
503 EXT(ARB_color_buffer_float),
504 EXTRA_API_GL_CORE,
505 EXTRA_END
506 };
507
508 static const int
509 extra_NV_primitive_restart[] = {
510 EXT(NV_primitive_restart),
511 EXTRA_END
512 };
513
514 static const int extra_version_30[] = { EXTRA_VERSION_30, EXTRA_END };
515 static const int extra_version_31[] = { EXTRA_VERSION_31, EXTRA_END };
516 static const int extra_version_32[] = { EXTRA_VERSION_32, EXTRA_END };
517
518 static const int extra_gl30_es3[] = {
519 EXTRA_VERSION_30,
520 EXTRA_API_ES3,
521 EXTRA_END,
522 };
523
524 static const int extra_gl32_es3[] = {
525 EXTRA_VERSION_32,
526 EXTRA_API_ES3,
527 EXTRA_END,
528 };
529
530 static const int extra_version_32_OES_geometry_shader[] = {
531 EXTRA_VERSION_32,
532 EXTRA_EXT_ES_GS,
533 EXTRA_END
534 };
535
536 static const int extra_gl40_ARB_sample_shading[] = {
537 EXTRA_VERSION_40,
538 EXT(ARB_sample_shading),
539 EXTRA_END
540 };
541
542 static const int
543 extra_ARB_vertex_program_api_es2[] = {
544 EXT(ARB_vertex_program),
545 EXTRA_API_ES2,
546 EXTRA_END
547 };
548
549 /* The ReadBuffer get token is valid under either full GL or under
550 * GLES2 if the NV_read_buffer extension is available. */
551 static const int
552 extra_NV_read_buffer_api_gl[] = {
553 EXTRA_API_ES2,
554 EXTRA_API_GL,
555 EXTRA_END
556 };
557
558 static const int extra_core_ARB_color_buffer_float_and_new_buffers[] = {
559 EXTRA_API_GL_CORE,
560 EXT(ARB_color_buffer_float),
561 EXTRA_NEW_BUFFERS,
562 EXTRA_END
563 };
564
565 static const int extra_EXT_shader_framebuffer_fetch[] = {
566 EXTRA_API_ES2,
567 EXTRA_API_ES3,
568 EXT(MESA_shader_framebuffer_fetch),
569 EXTRA_END
570 };
571
572 /* This is the big table describing all the enums we accept in
573 * glGet*v(). The table is partitioned into six parts: enums
574 * understood by all GL APIs (OpenGL, GLES and GLES2), enums shared
575 * between OpenGL and GLES, enums exclusive to GLES, etc for the
576 * remaining combinations. To look up the enums valid in a given API
577 * we will use a hash table specific to that API. These tables are in
578 * turn generated at build time and included through get_hash.h.
579 */
580
581 #include "get_hash.h"
582
583 /* All we need now is a way to look up the value struct from the enum.
584 * The code generated by gcc for the old generated big switch
585 * statement is a big, balanced, open coded if/else tree, essentially
586 * an unrolled binary search. It would be natural to sort the new
587 * enum table and use bsearch(), but we will use a read-only hash
588 * table instead. bsearch() has a nice guaranteed worst case
589 * performance, but we're also guaranteed to hit that worst case
590 * (log2(n) iterations) for about half the enums. Instead, using an
591 * open addressing hash table, we can find the enum on the first try
592 * for 80% of the enums, 1 collision for 10% and never more than 5
593 * collisions for any enum (typical numbers). And the code is very
594 * simple, even though it feels a little magic. */
595
596 /**
597 * Handle irregular enums
598 *
599 * Some values don't conform to the "well-known type at context
600 * pointer + offset" pattern, so we have this function to catch all
601 * the corner cases. Typically, it's a computed value or a one-off
602 * pointer to a custom struct or something.
603 *
604 * In this case we can't return a pointer to the value, so we'll have
605 * to use the temporary variable 'v' declared back in the calling
606 * glGet*v() function to store the result.
607 *
608 * \param ctx the current context
609 * \param d the struct value_desc that describes the enum
610 * \param v pointer to the tmp declared in the calling glGet*v() function
611 */
612 static void
613 find_custom_value(struct gl_context *ctx, const struct value_desc *d, union value *v)
614 {
615 struct gl_buffer_object **buffer_obj;
616 struct gl_array_attributes *array;
617 GLuint unit, *p;
618
619 switch (d->pname) {
620 case GL_MAJOR_VERSION:
621 v->value_int = ctx->Version / 10;
622 break;
623 case GL_MINOR_VERSION:
624 v->value_int = ctx->Version % 10;
625 break;
626
627 case GL_TEXTURE_1D:
628 case GL_TEXTURE_2D:
629 case GL_TEXTURE_3D:
630 case GL_TEXTURE_CUBE_MAP:
631 case GL_TEXTURE_RECTANGLE_NV:
632 case GL_TEXTURE_EXTERNAL_OES:
633 v->value_bool = _mesa_IsEnabled(d->pname);
634 break;
635
636 case GL_LINE_STIPPLE_PATTERN:
637 /* This is the only GLushort, special case it here by promoting
638 * to an int rather than introducing a new type. */
639 v->value_int = ctx->Line.StipplePattern;
640 break;
641
642 case GL_CURRENT_RASTER_TEXTURE_COORDS:
643 unit = ctx->Texture.CurrentUnit;
644 v->value_float_4[0] = ctx->Current.RasterTexCoords[unit][0];
645 v->value_float_4[1] = ctx->Current.RasterTexCoords[unit][1];
646 v->value_float_4[2] = ctx->Current.RasterTexCoords[unit][2];
647 v->value_float_4[3] = ctx->Current.RasterTexCoords[unit][3];
648 break;
649
650 case GL_CURRENT_TEXTURE_COORDS:
651 unit = ctx->Texture.CurrentUnit;
652 v->value_float_4[0] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][0];
653 v->value_float_4[1] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][1];
654 v->value_float_4[2] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][2];
655 v->value_float_4[3] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][3];
656 break;
657
658 case GL_COLOR_WRITEMASK:
659 v->value_int_4[0] = ctx->Color.ColorMask[0][RCOMP] ? 1 : 0;
660 v->value_int_4[1] = ctx->Color.ColorMask[0][GCOMP] ? 1 : 0;
661 v->value_int_4[2] = ctx->Color.ColorMask[0][BCOMP] ? 1 : 0;
662 v->value_int_4[3] = ctx->Color.ColorMask[0][ACOMP] ? 1 : 0;
663 break;
664
665 case GL_EDGE_FLAG:
666 v->value_bool = ctx->Current.Attrib[VERT_ATTRIB_EDGEFLAG][0] == 1.0F;
667 break;
668
669 case GL_READ_BUFFER:
670 v->value_enum = ctx->ReadBuffer->ColorReadBuffer;
671 break;
672
673 case GL_MAP2_GRID_DOMAIN:
674 v->value_float_4[0] = ctx->Eval.MapGrid2u1;
675 v->value_float_4[1] = ctx->Eval.MapGrid2u2;
676 v->value_float_4[2] = ctx->Eval.MapGrid2v1;
677 v->value_float_4[3] = ctx->Eval.MapGrid2v2;
678 break;
679
680 case GL_TEXTURE_STACK_DEPTH:
681 unit = ctx->Texture.CurrentUnit;
682 v->value_int = ctx->TextureMatrixStack[unit].Depth + 1;
683 break;
684 case GL_TEXTURE_MATRIX:
685 unit = ctx->Texture.CurrentUnit;
686 v->value_matrix = ctx->TextureMatrixStack[unit].Top;
687 break;
688
689 case GL_TEXTURE_COORD_ARRAY:
690 case GL_TEXTURE_COORD_ARRAY_SIZE:
691 case GL_TEXTURE_COORD_ARRAY_TYPE:
692 case GL_TEXTURE_COORD_ARRAY_STRIDE:
693 array = &ctx->Array.VAO->VertexAttrib[VERT_ATTRIB_TEX(ctx->Array.ActiveTexture)];
694 v->value_int = *(GLuint *) ((char *) array + d->offset);
695 break;
696
697 case GL_ACTIVE_TEXTURE_ARB:
698 v->value_int = GL_TEXTURE0_ARB + ctx->Texture.CurrentUnit;
699 break;
700 case GL_CLIENT_ACTIVE_TEXTURE_ARB:
701 v->value_int = GL_TEXTURE0_ARB + ctx->Array.ActiveTexture;
702 break;
703
704 case GL_MODELVIEW_STACK_DEPTH:
705 case GL_PROJECTION_STACK_DEPTH:
706 v->value_int = *(GLint *) ((char *) ctx + d->offset) + 1;
707 break;
708
709 case GL_MAX_TEXTURE_SIZE:
710 case GL_MAX_3D_TEXTURE_SIZE:
711 case GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB:
712 p = (GLuint *) ((char *) ctx + d->offset);
713 v->value_int = 1 << (*p - 1);
714 break;
715
716 case GL_SCISSOR_BOX:
717 v->value_int_4[0] = ctx->Scissor.ScissorArray[0].X;
718 v->value_int_4[1] = ctx->Scissor.ScissorArray[0].Y;
719 v->value_int_4[2] = ctx->Scissor.ScissorArray[0].Width;
720 v->value_int_4[3] = ctx->Scissor.ScissorArray[0].Height;
721 break;
722
723 case GL_SCISSOR_TEST:
724 v->value_bool = ctx->Scissor.EnableFlags & 1;
725 break;
726
727 case GL_LIST_INDEX:
728 v->value_int =
729 ctx->ListState.CurrentList ? ctx->ListState.CurrentList->Name : 0;
730 break;
731 case GL_LIST_MODE:
732 if (!ctx->CompileFlag)
733 v->value_enum = 0;
734 else if (ctx->ExecuteFlag)
735 v->value_enum = GL_COMPILE_AND_EXECUTE;
736 else
737 v->value_enum = GL_COMPILE;
738 break;
739
740 case GL_VIEWPORT:
741 v->value_float_4[0] = ctx->ViewportArray[0].X;
742 v->value_float_4[1] = ctx->ViewportArray[0].Y;
743 v->value_float_4[2] = ctx->ViewportArray[0].Width;
744 v->value_float_4[3] = ctx->ViewportArray[0].Height;
745 break;
746
747 case GL_DEPTH_RANGE:
748 v->value_double_2[0] = ctx->ViewportArray[0].Near;
749 v->value_double_2[1] = ctx->ViewportArray[0].Far;
750 break;
751
752 case GL_ACTIVE_STENCIL_FACE_EXT:
753 v->value_enum = ctx->Stencil.ActiveFace ? GL_BACK : GL_FRONT;
754 break;
755
756 case GL_STENCIL_FAIL:
757 v->value_enum = ctx->Stencil.FailFunc[ctx->Stencil.ActiveFace];
758 break;
759 case GL_STENCIL_FUNC:
760 v->value_enum = ctx->Stencil.Function[ctx->Stencil.ActiveFace];
761 break;
762 case GL_STENCIL_PASS_DEPTH_FAIL:
763 v->value_enum = ctx->Stencil.ZFailFunc[ctx->Stencil.ActiveFace];
764 break;
765 case GL_STENCIL_PASS_DEPTH_PASS:
766 v->value_enum = ctx->Stencil.ZPassFunc[ctx->Stencil.ActiveFace];
767 break;
768 case GL_STENCIL_REF:
769 v->value_int = _mesa_get_stencil_ref(ctx, ctx->Stencil.ActiveFace);
770 break;
771 case GL_STENCIL_BACK_REF:
772 v->value_int = _mesa_get_stencil_ref(ctx, 1);
773 break;
774 case GL_STENCIL_VALUE_MASK:
775 v->value_int = ctx->Stencil.ValueMask[ctx->Stencil.ActiveFace];
776 break;
777 case GL_STENCIL_WRITEMASK:
778 v->value_int = ctx->Stencil.WriteMask[ctx->Stencil.ActiveFace];
779 break;
780
781 case GL_NUM_EXTENSIONS:
782 v->value_int = _mesa_get_extension_count(ctx);
783 break;
784
785 case GL_IMPLEMENTATION_COLOR_READ_TYPE_OES:
786 v->value_int = _mesa_get_color_read_type(ctx);
787 break;
788 case GL_IMPLEMENTATION_COLOR_READ_FORMAT_OES:
789 v->value_int = _mesa_get_color_read_format(ctx);
790 break;
791
792 case GL_CURRENT_MATRIX_STACK_DEPTH_ARB:
793 v->value_int = ctx->CurrentStack->Depth + 1;
794 break;
795 case GL_CURRENT_MATRIX_ARB:
796 case GL_TRANSPOSE_CURRENT_MATRIX_ARB:
797 v->value_matrix = ctx->CurrentStack->Top;
798 break;
799
800 case GL_NUM_COMPRESSED_TEXTURE_FORMATS_ARB:
801 v->value_int = _mesa_get_compressed_formats(ctx, NULL);
802 break;
803 case GL_COMPRESSED_TEXTURE_FORMATS_ARB:
804 v->value_int_n.n =
805 _mesa_get_compressed_formats(ctx, v->value_int_n.ints);
806 assert(v->value_int_n.n <= (int) ARRAY_SIZE(v->value_int_n.ints));
807 break;
808
809 case GL_MAX_VARYING_FLOATS_ARB:
810 v->value_int = ctx->Const.MaxVarying * 4;
811 break;
812
813 /* Various object names */
814
815 case GL_TEXTURE_BINDING_1D:
816 case GL_TEXTURE_BINDING_2D:
817 case GL_TEXTURE_BINDING_3D:
818 case GL_TEXTURE_BINDING_1D_ARRAY_EXT:
819 case GL_TEXTURE_BINDING_2D_ARRAY_EXT:
820 case GL_TEXTURE_BINDING_CUBE_MAP_ARB:
821 case GL_TEXTURE_BINDING_RECTANGLE_NV:
822 case GL_TEXTURE_BINDING_EXTERNAL_OES:
823 case GL_TEXTURE_BINDING_CUBE_MAP_ARRAY:
824 case GL_TEXTURE_BINDING_2D_MULTISAMPLE:
825 case GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY:
826 unit = ctx->Texture.CurrentUnit;
827 v->value_int =
828 ctx->Texture.Unit[unit].CurrentTex[d->offset]->Name;
829 break;
830
831 /* GL_EXT_packed_float */
832 case GL_RGBA_SIGNED_COMPONENTS_EXT:
833 {
834 /* Note: we only check the 0th color attachment. */
835 const struct gl_renderbuffer *rb =
836 ctx->DrawBuffer->_ColorDrawBuffers[0];
837 if (rb && _mesa_is_format_signed(rb->Format)) {
838 /* Issue 17 of GL_EXT_packed_float: If a component (such as
839 * alpha) has zero bits, the component should not be considered
840 * signed and so the bit for the respective component should be
841 * zeroed.
842 */
843 GLint r_bits =
844 _mesa_get_format_bits(rb->Format, GL_RED_BITS);
845 GLint g_bits =
846 _mesa_get_format_bits(rb->Format, GL_GREEN_BITS);
847 GLint b_bits =
848 _mesa_get_format_bits(rb->Format, GL_BLUE_BITS);
849 GLint a_bits =
850 _mesa_get_format_bits(rb->Format, GL_ALPHA_BITS);
851 GLint l_bits =
852 _mesa_get_format_bits(rb->Format, GL_TEXTURE_LUMINANCE_SIZE);
853 GLint i_bits =
854 _mesa_get_format_bits(rb->Format, GL_TEXTURE_INTENSITY_SIZE);
855
856 v->value_int_4[0] = r_bits + l_bits + i_bits > 0;
857 v->value_int_4[1] = g_bits + l_bits + i_bits > 0;
858 v->value_int_4[2] = b_bits + l_bits + i_bits > 0;
859 v->value_int_4[3] = a_bits + i_bits > 0;
860 }
861 else {
862 v->value_int_4[0] =
863 v->value_int_4[1] =
864 v->value_int_4[2] =
865 v->value_int_4[3] = 0;
866 }
867 }
868 break;
869
870 /* GL_ARB_vertex_buffer_object */
871 case GL_VERTEX_ARRAY_BUFFER_BINDING_ARB:
872 case GL_NORMAL_ARRAY_BUFFER_BINDING_ARB:
873 case GL_COLOR_ARRAY_BUFFER_BINDING_ARB:
874 case GL_INDEX_ARRAY_BUFFER_BINDING_ARB:
875 case GL_EDGE_FLAG_ARRAY_BUFFER_BINDING_ARB:
876 case GL_SECONDARY_COLOR_ARRAY_BUFFER_BINDING_ARB:
877 case GL_FOG_COORDINATE_ARRAY_BUFFER_BINDING_ARB:
878 buffer_obj = (struct gl_buffer_object **)
879 ((char *) ctx->Array.VAO + d->offset);
880 v->value_int = (*buffer_obj)->Name;
881 break;
882 case GL_ARRAY_BUFFER_BINDING_ARB:
883 v->value_int = ctx->Array.ArrayBufferObj->Name;
884 break;
885 case GL_TEXTURE_COORD_ARRAY_BUFFER_BINDING_ARB:
886 v->value_int =
887 ctx->Array.VAO->BufferBinding[VERT_ATTRIB_TEX(ctx->Array.ActiveTexture)].BufferObj->Name;
888 break;
889 case GL_ELEMENT_ARRAY_BUFFER_BINDING_ARB:
890 v->value_int = ctx->Array.VAO->IndexBufferObj->Name;
891 break;
892
893 /* ARB_vertex_array_bgra */
894 case GL_COLOR_ARRAY_SIZE:
895 array = &ctx->Array.VAO->VertexAttrib[VERT_ATTRIB_COLOR0];
896 v->value_int = array->Format == GL_BGRA ? GL_BGRA : array->Size;
897 break;
898 case GL_SECONDARY_COLOR_ARRAY_SIZE:
899 array = &ctx->Array.VAO->VertexAttrib[VERT_ATTRIB_COLOR1];
900 v->value_int = array->Format == GL_BGRA ? GL_BGRA : array->Size;
901 break;
902
903 /* ARB_copy_buffer */
904 case GL_COPY_READ_BUFFER:
905 v->value_int = ctx->CopyReadBuffer->Name;
906 break;
907 case GL_COPY_WRITE_BUFFER:
908 v->value_int = ctx->CopyWriteBuffer->Name;
909 break;
910
911 case GL_PIXEL_PACK_BUFFER_BINDING_EXT:
912 v->value_int = ctx->Pack.BufferObj->Name;
913 break;
914 case GL_PIXEL_UNPACK_BUFFER_BINDING_EXT:
915 v->value_int = ctx->Unpack.BufferObj->Name;
916 break;
917 case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING:
918 v->value_int = ctx->TransformFeedback.CurrentBuffer->Name;
919 break;
920 case GL_TRANSFORM_FEEDBACK_BUFFER_PAUSED:
921 v->value_int = ctx->TransformFeedback.CurrentObject->Paused;
922 break;
923 case GL_TRANSFORM_FEEDBACK_BUFFER_ACTIVE:
924 v->value_int = ctx->TransformFeedback.CurrentObject->Active;
925 break;
926 case GL_TRANSFORM_FEEDBACK_BINDING:
927 v->value_int = ctx->TransformFeedback.CurrentObject->Name;
928 break;
929 case GL_CURRENT_PROGRAM:
930 /* The Changelog of the ARB_separate_shader_objects spec says:
931 *
932 * 24 25 Jul 2011 pbrown Remove the language erroneously deleting
933 * CURRENT_PROGRAM. In the EXT extension, this
934 * token was aliased to ACTIVE_PROGRAM_EXT, and
935 * was used to indicate the last program set by
936 * either ActiveProgramEXT or UseProgram. In
937 * the ARB extension, the SSO active programs
938 * are now program pipeline object state and
939 * CURRENT_PROGRAM should still be used to query
940 * the last program set by UseProgram (bug 7822).
941 */
942 v->value_int =
943 ctx->Shader.ActiveProgram ? ctx->Shader.ActiveProgram->Name : 0;
944 break;
945 case GL_READ_FRAMEBUFFER_BINDING_EXT:
946 v->value_int = ctx->ReadBuffer->Name;
947 break;
948 case GL_RENDERBUFFER_BINDING_EXT:
949 v->value_int =
950 ctx->CurrentRenderbuffer ? ctx->CurrentRenderbuffer->Name : 0;
951 break;
952 case GL_POINT_SIZE_ARRAY_BUFFER_BINDING_OES:
953 v->value_int = ctx->Array.VAO->BufferBinding[VERT_ATTRIB_POINT_SIZE].BufferObj->Name;
954 break;
955
956 case GL_FOG_COLOR:
957 if (_mesa_get_clamp_fragment_color(ctx, ctx->DrawBuffer))
958 COPY_4FV(v->value_float_4, ctx->Fog.Color);
959 else
960 COPY_4FV(v->value_float_4, ctx->Fog.ColorUnclamped);
961 break;
962 case GL_COLOR_CLEAR_VALUE:
963 if (_mesa_get_clamp_fragment_color(ctx, ctx->DrawBuffer)) {
964 v->value_float_4[0] = CLAMP(ctx->Color.ClearColor.f[0], 0.0F, 1.0F);
965 v->value_float_4[1] = CLAMP(ctx->Color.ClearColor.f[1], 0.0F, 1.0F);
966 v->value_float_4[2] = CLAMP(ctx->Color.ClearColor.f[2], 0.0F, 1.0F);
967 v->value_float_4[3] = CLAMP(ctx->Color.ClearColor.f[3], 0.0F, 1.0F);
968 } else
969 COPY_4FV(v->value_float_4, ctx->Color.ClearColor.f);
970 break;
971 case GL_BLEND_COLOR_EXT:
972 if (_mesa_get_clamp_fragment_color(ctx, ctx->DrawBuffer))
973 COPY_4FV(v->value_float_4, ctx->Color.BlendColor);
974 else
975 COPY_4FV(v->value_float_4, ctx->Color.BlendColorUnclamped);
976 break;
977 case GL_ALPHA_TEST_REF:
978 if (_mesa_get_clamp_fragment_color(ctx, ctx->DrawBuffer))
979 v->value_float = ctx->Color.AlphaRef;
980 else
981 v->value_float = ctx->Color.AlphaRefUnclamped;
982 break;
983 case GL_MAX_VERTEX_UNIFORM_VECTORS:
984 v->value_int = ctx->Const.Program[MESA_SHADER_VERTEX].MaxUniformComponents / 4;
985 break;
986
987 case GL_MAX_FRAGMENT_UNIFORM_VECTORS:
988 v->value_int = ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxUniformComponents / 4;
989 break;
990
991 /* GL_ARB_texture_buffer_object */
992 case GL_TEXTURE_BUFFER_ARB:
993 v->value_int = ctx->Texture.BufferObject->Name;
994 break;
995 case GL_TEXTURE_BINDING_BUFFER_ARB:
996 unit = ctx->Texture.CurrentUnit;
997 v->value_int =
998 ctx->Texture.Unit[unit].CurrentTex[TEXTURE_BUFFER_INDEX]->Name;
999 break;
1000 case GL_TEXTURE_BUFFER_DATA_STORE_BINDING_ARB:
1001 {
1002 struct gl_buffer_object *buf =
1003 ctx->Texture.Unit[ctx->Texture.CurrentUnit]
1004 .CurrentTex[TEXTURE_BUFFER_INDEX]->BufferObject;
1005 v->value_int = buf ? buf->Name : 0;
1006 }
1007 break;
1008 case GL_TEXTURE_BUFFER_FORMAT_ARB:
1009 v->value_int = ctx->Texture.Unit[ctx->Texture.CurrentUnit]
1010 .CurrentTex[TEXTURE_BUFFER_INDEX]->BufferObjectFormat;
1011 break;
1012
1013 /* GL_ARB_sampler_objects */
1014 case GL_SAMPLER_BINDING:
1015 {
1016 struct gl_sampler_object *samp =
1017 ctx->Texture.Unit[ctx->Texture.CurrentUnit].Sampler;
1018 v->value_int = samp ? samp->Name : 0;
1019 }
1020 break;
1021 /* GL_ARB_uniform_buffer_object */
1022 case GL_UNIFORM_BUFFER_BINDING:
1023 v->value_int = ctx->UniformBuffer->Name;
1024 break;
1025 /* GL_ARB_shader_storage_buffer_object */
1026 case GL_SHADER_STORAGE_BUFFER_BINDING:
1027 v->value_int = ctx->ShaderStorageBuffer->Name;
1028 break;
1029 /* GL_ARB_query_buffer_object */
1030 case GL_QUERY_BUFFER_BINDING:
1031 v->value_int = ctx->QueryBuffer->Name;
1032 break;
1033 /* GL_ARB_timer_query */
1034 case GL_TIMESTAMP:
1035 if (ctx->Driver.GetTimestamp) {
1036 v->value_int64 = ctx->Driver.GetTimestamp(ctx);
1037 }
1038 else {
1039 _mesa_problem(ctx, "driver doesn't implement GetTimestamp");
1040 }
1041 break;
1042 /* GL_KHR_DEBUG */
1043 case GL_DEBUG_OUTPUT:
1044 case GL_DEBUG_OUTPUT_SYNCHRONOUS:
1045 case GL_DEBUG_LOGGED_MESSAGES:
1046 case GL_DEBUG_NEXT_LOGGED_MESSAGE_LENGTH:
1047 case GL_DEBUG_GROUP_STACK_DEPTH:
1048 v->value_int = _mesa_get_debug_state_int(ctx, d->pname);
1049 break;
1050 /* GL_ARB_shader_atomic_counters */
1051 case GL_ATOMIC_COUNTER_BUFFER_BINDING:
1052 if (ctx->AtomicBuffer) {
1053 v->value_int = ctx->AtomicBuffer->Name;
1054 } else {
1055 v->value_int = 0;
1056 }
1057 break;
1058 /* GL_ARB_draw_indirect */
1059 case GL_DRAW_INDIRECT_BUFFER_BINDING:
1060 v->value_int = ctx->DrawIndirectBuffer->Name;
1061 break;
1062 /* GL_ARB_indirect_parameters */
1063 case GL_PARAMETER_BUFFER_BINDING_ARB:
1064 v->value_int = ctx->ParameterBuffer->Name;
1065 break;
1066 /* GL_ARB_separate_shader_objects */
1067 case GL_PROGRAM_PIPELINE_BINDING:
1068 if (ctx->Pipeline.Current) {
1069 v->value_int = ctx->Pipeline.Current->Name;
1070 } else {
1071 v->value_int = 0;
1072 }
1073 break;
1074 /* GL_ARB_compute_shader */
1075 case GL_DISPATCH_INDIRECT_BUFFER_BINDING:
1076 v->value_int = ctx->DispatchIndirectBuffer->Name;
1077 break;
1078 /* GL_ARB_multisample */
1079 case GL_SAMPLES:
1080 v->value_int = _mesa_geometric_samples(ctx->DrawBuffer);
1081 break;
1082 case GL_SAMPLE_BUFFERS:
1083 v->value_int = _mesa_geometric_samples(ctx->DrawBuffer) > 0;
1084 break;
1085 /* GL_EXT_textrue_integer */
1086 case GL_RGBA_INTEGER_MODE_EXT:
1087 v->value_int = (ctx->DrawBuffer->_IntegerBuffers != 0);
1088 break;
1089 /* GL_ATI_meminfo & GL_NVX_gpu_memory_info */
1090 case GL_VBO_FREE_MEMORY_ATI:
1091 case GL_TEXTURE_FREE_MEMORY_ATI:
1092 case GL_RENDERBUFFER_FREE_MEMORY_ATI:
1093 case GL_GPU_MEMORY_INFO_DEDICATED_VIDMEM_NVX:
1094 case GL_GPU_MEMORY_INFO_TOTAL_AVAILABLE_MEMORY_NVX:
1095 case GL_GPU_MEMORY_INFO_CURRENT_AVAILABLE_VIDMEM_NVX:
1096 case GL_GPU_MEMORY_INFO_EVICTION_COUNT_NVX:
1097 case GL_GPU_MEMORY_INFO_EVICTED_MEMORY_NVX:
1098 {
1099 struct gl_memory_info info;
1100
1101 ctx->Driver.QueryMemoryInfo(ctx, &info);
1102
1103 if (d->pname == GL_GPU_MEMORY_INFO_DEDICATED_VIDMEM_NVX)
1104 v->value_int = info.total_device_memory;
1105 else if (d->pname == GL_GPU_MEMORY_INFO_TOTAL_AVAILABLE_MEMORY_NVX)
1106 v->value_int = info.total_device_memory +
1107 info.total_staging_memory;
1108 else if (d->pname == GL_GPU_MEMORY_INFO_CURRENT_AVAILABLE_VIDMEM_NVX)
1109 v->value_int = info.avail_device_memory;
1110 else if (d->pname == GL_GPU_MEMORY_INFO_EVICTION_COUNT_NVX)
1111 v->value_int = info.nr_device_memory_evictions;
1112 else if (d->pname == GL_GPU_MEMORY_INFO_EVICTED_MEMORY_NVX)
1113 v->value_int = info.device_memory_evicted;
1114 else {
1115 /* ATI free memory enums.
1116 *
1117 * Since the GPU memory is (usually) page-table based, every two
1118 * consecutive elements are equal. From the GL_ATI_meminfo
1119 * specification:
1120 *
1121 * "param[0] - total memory free in the pool
1122 * param[1] - largest available free block in the pool
1123 * param[2] - total auxiliary memory free
1124 * param[3] - largest auxiliary free block"
1125 *
1126 * All three (VBO, TEXTURE, RENDERBUFFER) queries return
1127 * the same numbers here.
1128 */
1129 v->value_int_4[0] = info.avail_device_memory;
1130 v->value_int_4[1] = info.avail_device_memory;
1131 v->value_int_4[2] = info.avail_staging_memory;
1132 v->value_int_4[3] = info.avail_staging_memory;
1133 }
1134 }
1135 break;
1136 }
1137 }
1138
1139 /**
1140 * Check extra constraints on a struct value_desc descriptor
1141 *
1142 * If a struct value_desc has a non-NULL extra pointer, it means that
1143 * there are a number of extra constraints to check or actions to
1144 * perform. The extras is just an integer array where each integer
1145 * encode different constraints or actions.
1146 *
1147 * \param ctx current context
1148 * \param func name of calling glGet*v() function for error reporting
1149 * \param d the struct value_desc that has the extra constraints
1150 *
1151 * \return GL_FALSE if all of the constraints were not satisfied,
1152 * otherwise GL_TRUE.
1153 */
1154 static GLboolean
1155 check_extra(struct gl_context *ctx, const char *func, const struct value_desc *d)
1156 {
1157 const GLuint version = ctx->Version;
1158 GLboolean api_check = GL_FALSE;
1159 GLboolean api_found = GL_FALSE;
1160 const int *e;
1161
1162 for (e = d->extra; *e != EXTRA_END; e++) {
1163 switch (*e) {
1164 case EXTRA_VERSION_30:
1165 api_check = GL_TRUE;
1166 if (version >= 30)
1167 api_found = GL_TRUE;
1168 break;
1169 case EXTRA_VERSION_31:
1170 api_check = GL_TRUE;
1171 if (version >= 31)
1172 api_found = GL_TRUE;
1173 break;
1174 case EXTRA_VERSION_32:
1175 api_check = GL_TRUE;
1176 if (version >= 32)
1177 api_found = GL_TRUE;
1178 break;
1179 case EXTRA_NEW_FRAG_CLAMP:
1180 if (ctx->NewState & (_NEW_BUFFERS | _NEW_FRAG_CLAMP))
1181 _mesa_update_state(ctx);
1182 break;
1183 case EXTRA_API_ES2:
1184 api_check = GL_TRUE;
1185 if (ctx->API == API_OPENGLES2)
1186 api_found = GL_TRUE;
1187 break;
1188 case EXTRA_API_ES3:
1189 api_check = GL_TRUE;
1190 if (_mesa_is_gles3(ctx))
1191 api_found = GL_TRUE;
1192 break;
1193 case EXTRA_API_ES31:
1194 api_check = GL_TRUE;
1195 if (_mesa_is_gles31(ctx))
1196 api_found = GL_TRUE;
1197 break;
1198 case EXTRA_API_ES32:
1199 api_check = GL_TRUE;
1200 if (_mesa_is_gles32(ctx))
1201 api_found = GL_TRUE;
1202 break;
1203 case EXTRA_API_GL:
1204 api_check = GL_TRUE;
1205 if (_mesa_is_desktop_gl(ctx))
1206 api_found = GL_TRUE;
1207 break;
1208 case EXTRA_API_GL_CORE:
1209 api_check = GL_TRUE;
1210 if (ctx->API == API_OPENGL_CORE)
1211 api_found = GL_TRUE;
1212 break;
1213 case EXTRA_NEW_BUFFERS:
1214 if (ctx->NewState & _NEW_BUFFERS)
1215 _mesa_update_state(ctx);
1216 break;
1217 case EXTRA_FLUSH_CURRENT:
1218 FLUSH_CURRENT(ctx, 0);
1219 break;
1220 case EXTRA_VALID_DRAW_BUFFER:
1221 if (d->pname - GL_DRAW_BUFFER0_ARB >= ctx->Const.MaxDrawBuffers) {
1222 _mesa_error(ctx, GL_INVALID_OPERATION, "%s(draw buffer %u)",
1223 func, d->pname - GL_DRAW_BUFFER0_ARB);
1224 return GL_FALSE;
1225 }
1226 break;
1227 case EXTRA_VALID_TEXTURE_UNIT:
1228 if (ctx->Texture.CurrentUnit >= ctx->Const.MaxTextureCoordUnits) {
1229 _mesa_error(ctx, GL_INVALID_OPERATION, "%s(texture %u)",
1230 func, ctx->Texture.CurrentUnit);
1231 return GL_FALSE;
1232 }
1233 break;
1234 case EXTRA_VALID_CLIP_DISTANCE:
1235 if (d->pname - GL_CLIP_DISTANCE0 >= ctx->Const.MaxClipPlanes) {
1236 _mesa_error(ctx, GL_INVALID_ENUM, "%s(clip distance %u)",
1237 func, d->pname - GL_CLIP_DISTANCE0);
1238 return GL_FALSE;
1239 }
1240 break;
1241 case EXTRA_GLSL_130:
1242 api_check = GL_TRUE;
1243 if (ctx->Const.GLSLVersion >= 130)
1244 api_found = GL_TRUE;
1245 break;
1246 case EXTRA_EXT_UBO_GS:
1247 api_check = GL_TRUE;
1248 if (ctx->Extensions.ARB_uniform_buffer_object &&
1249 _mesa_has_geometry_shaders(ctx))
1250 api_found = GL_TRUE;
1251 break;
1252 case EXTRA_EXT_ATOMICS_GS:
1253 api_check = GL_TRUE;
1254 if (ctx->Extensions.ARB_shader_atomic_counters &&
1255 _mesa_has_geometry_shaders(ctx))
1256 api_found = GL_TRUE;
1257 break;
1258 case EXTRA_EXT_SHADER_IMAGE_GS:
1259 api_check = GL_TRUE;
1260 if (ctx->Extensions.ARB_shader_image_load_store &&
1261 _mesa_has_geometry_shaders(ctx))
1262 api_found = GL_TRUE;
1263 break;
1264 case EXTRA_EXT_ATOMICS_TESS:
1265 api_check = GL_TRUE;
1266 api_found = ctx->Extensions.ARB_shader_atomic_counters &&
1267 _mesa_has_tessellation(ctx);
1268 break;
1269 case EXTRA_EXT_SHADER_IMAGE_TESS:
1270 api_check = GL_TRUE;
1271 api_found = ctx->Extensions.ARB_shader_image_load_store &&
1272 _mesa_has_tessellation(ctx);
1273 break;
1274 case EXTRA_EXT_SSBO_GS:
1275 api_check = GL_TRUE;
1276 if (ctx->Extensions.ARB_shader_storage_buffer_object &&
1277 _mesa_has_geometry_shaders(ctx))
1278 api_found = GL_TRUE;
1279 break;
1280 case EXTRA_EXT_FB_NO_ATTACH_GS:
1281 api_check = GL_TRUE;
1282 if (ctx->Extensions.ARB_framebuffer_no_attachments &&
1283 (_mesa_is_desktop_gl(ctx) ||
1284 _mesa_has_OES_geometry_shader(ctx)))
1285 api_found = GL_TRUE;
1286 break;
1287 case EXTRA_EXT_ES_GS:
1288 api_check = GL_TRUE;
1289 if (_mesa_has_OES_geometry_shader(ctx))
1290 api_found = GL_TRUE;
1291 break;
1292 case EXTRA_END:
1293 break;
1294 default: /* *e is a offset into the extension struct */
1295 api_check = GL_TRUE;
1296 if (*(GLboolean *) ((char *) &ctx->Extensions + *e))
1297 api_found = GL_TRUE;
1298 break;
1299 }
1300 }
1301
1302 if (api_check && !api_found) {
1303 _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func,
1304 _mesa_enum_to_string(d->pname));
1305 return GL_FALSE;
1306 }
1307
1308 return GL_TRUE;
1309 }
1310
1311 static const struct value_desc error_value =
1312 { 0, 0, TYPE_INVALID, NO_OFFSET, NO_EXTRA };
1313
1314 /**
1315 * Find the struct value_desc corresponding to the enum 'pname'.
1316 *
1317 * We hash the enum value to get an index into the 'table' array,
1318 * which holds the index in the 'values' array of struct value_desc.
1319 * Once we've found the entry, we do the extra checks, if any, then
1320 * look up the value and return a pointer to it.
1321 *
1322 * If the value has to be computed (for example, it's the result of a
1323 * function call or we need to add 1 to it), we use the tmp 'v' to
1324 * store the result.
1325 *
1326 * \param func name of glGet*v() func for error reporting
1327 * \param pname the enum value we're looking up
1328 * \param p is were we return the pointer to the value
1329 * \param v a tmp union value variable in the calling glGet*v() function
1330 *
1331 * \return the struct value_desc corresponding to the enum or a struct
1332 * value_desc of TYPE_INVALID if not found. This lets the calling
1333 * glGet*v() function jump right into a switch statement and
1334 * handle errors there instead of having to check for NULL.
1335 */
1336 static const struct value_desc *
1337 find_value(const char *func, GLenum pname, void **p, union value *v)
1338 {
1339 GET_CURRENT_CONTEXT(ctx);
1340 struct gl_texture_unit *unit;
1341 int mask, hash;
1342 const struct value_desc *d;
1343 int api;
1344
1345 api = ctx->API;
1346 /* We index into the table_set[] list of per-API hash tables using the API's
1347 * value in the gl_api enum. Since GLES 3 doesn't have an API_OPENGL* enum
1348 * value since it's compatible with GLES2 its entry in table_set[] is at the
1349 * end.
1350 */
1351 STATIC_ASSERT(ARRAY_SIZE(table_set) == API_OPENGL_LAST + 4);
1352 if (ctx->API == API_OPENGLES2) {
1353 if (ctx->Version >= 32)
1354 api = API_OPENGL_LAST + 3;
1355 else if (ctx->Version >= 31)
1356 api = API_OPENGL_LAST + 2;
1357 else if (ctx->Version >= 30)
1358 api = API_OPENGL_LAST + 1;
1359 }
1360 mask = ARRAY_SIZE(table(api)) - 1;
1361 hash = (pname * prime_factor);
1362 while (1) {
1363 int idx = table(api)[hash & mask];
1364
1365 /* If the enum isn't valid, the hash walk ends with index 0,
1366 * pointing to the first entry of values[] which doesn't hold
1367 * any valid enum. */
1368 if (unlikely(idx == 0)) {
1369 _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func,
1370 _mesa_enum_to_string(pname));
1371 return &error_value;
1372 }
1373
1374 d = &values[idx];
1375 if (likely(d->pname == pname))
1376 break;
1377
1378 hash += prime_step;
1379 }
1380
1381 if (unlikely(d->extra && !check_extra(ctx, func, d)))
1382 return &error_value;
1383
1384 switch (d->location) {
1385 case LOC_BUFFER:
1386 *p = ((char *) ctx->DrawBuffer + d->offset);
1387 return d;
1388 case LOC_CONTEXT:
1389 *p = ((char *) ctx + d->offset);
1390 return d;
1391 case LOC_ARRAY:
1392 *p = ((char *) ctx->Array.VAO + d->offset);
1393 return d;
1394 case LOC_TEXUNIT:
1395 unit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
1396 *p = ((char *) unit + d->offset);
1397 return d;
1398 case LOC_CUSTOM:
1399 find_custom_value(ctx, d, v);
1400 *p = v;
1401 return d;
1402 default:
1403 assert(0);
1404 break;
1405 }
1406
1407 /* silence warning */
1408 return &error_value;
1409 }
1410
1411 static const int transpose[] = {
1412 0, 4, 8, 12,
1413 1, 5, 9, 13,
1414 2, 6, 10, 14,
1415 3, 7, 11, 15
1416 };
1417
1418 void GLAPIENTRY
1419 _mesa_GetBooleanv(GLenum pname, GLboolean *params)
1420 {
1421 const struct value_desc *d;
1422 union value v;
1423 GLmatrix *m;
1424 int shift, i;
1425 void *p;
1426
1427 d = find_value("glGetBooleanv", pname, &p, &v);
1428 switch (d->type) {
1429 case TYPE_INVALID:
1430 break;
1431 case TYPE_CONST:
1432 params[0] = INT_TO_BOOLEAN(d->offset);
1433 break;
1434
1435 case TYPE_FLOAT_8:
1436 params[7] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[7]);
1437 params[6] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[6]);
1438 params[5] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[5]);
1439 params[4] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[4]);
1440 case TYPE_FLOAT_4:
1441 case TYPE_FLOATN_4:
1442 params[3] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[3]);
1443 case TYPE_FLOAT_3:
1444 case TYPE_FLOATN_3:
1445 params[2] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[2]);
1446 case TYPE_FLOAT_2:
1447 case TYPE_FLOATN_2:
1448 params[1] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[1]);
1449 case TYPE_FLOAT:
1450 case TYPE_FLOATN:
1451 params[0] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[0]);
1452 break;
1453
1454 case TYPE_DOUBLEN_2:
1455 params[1] = FLOAT_TO_BOOLEAN(((GLdouble *) p)[1]);
1456 case TYPE_DOUBLEN:
1457 params[0] = FLOAT_TO_BOOLEAN(((GLdouble *) p)[0]);
1458 break;
1459
1460 case TYPE_INT_4:
1461 params[3] = INT_TO_BOOLEAN(((GLint *) p)[3]);
1462 case TYPE_INT_3:
1463 params[2] = INT_TO_BOOLEAN(((GLint *) p)[2]);
1464 case TYPE_INT_2:
1465 case TYPE_ENUM_2:
1466 params[1] = INT_TO_BOOLEAN(((GLint *) p)[1]);
1467 case TYPE_INT:
1468 case TYPE_ENUM:
1469 params[0] = INT_TO_BOOLEAN(((GLint *) p)[0]);
1470 break;
1471
1472 case TYPE_INT_N:
1473 for (i = 0; i < v.value_int_n.n; i++)
1474 params[i] = INT_TO_BOOLEAN(v.value_int_n.ints[i]);
1475 break;
1476
1477 case TYPE_INT64:
1478 params[0] = INT64_TO_BOOLEAN(((GLint64 *) p)[0]);
1479 break;
1480
1481 case TYPE_BOOLEAN:
1482 params[0] = ((GLboolean*) p)[0];
1483 break;
1484
1485 case TYPE_MATRIX:
1486 m = *(GLmatrix **) p;
1487 for (i = 0; i < 16; i++)
1488 params[i] = FLOAT_TO_BOOLEAN(m->m[i]);
1489 break;
1490
1491 case TYPE_MATRIX_T:
1492 m = *(GLmatrix **) p;
1493 for (i = 0; i < 16; i++)
1494 params[i] = FLOAT_TO_BOOLEAN(m->m[transpose[i]]);
1495 break;
1496
1497 case TYPE_BIT_0:
1498 case TYPE_BIT_1:
1499 case TYPE_BIT_2:
1500 case TYPE_BIT_3:
1501 case TYPE_BIT_4:
1502 case TYPE_BIT_5:
1503 case TYPE_BIT_6:
1504 case TYPE_BIT_7:
1505 shift = d->type - TYPE_BIT_0;
1506 params[0] = (*(GLbitfield *) p >> shift) & 1;
1507 break;
1508 }
1509 }
1510
1511 void GLAPIENTRY
1512 _mesa_GetFloatv(GLenum pname, GLfloat *params)
1513 {
1514 const struct value_desc *d;
1515 union value v;
1516 GLmatrix *m;
1517 int shift, i;
1518 void *p;
1519
1520 d = find_value("glGetFloatv", pname, &p, &v);
1521 switch (d->type) {
1522 case TYPE_INVALID:
1523 break;
1524 case TYPE_CONST:
1525 params[0] = (GLfloat) d->offset;
1526 break;
1527
1528 case TYPE_FLOAT_8:
1529 params[7] = ((GLfloat *) p)[7];
1530 params[6] = ((GLfloat *) p)[6];
1531 params[5] = ((GLfloat *) p)[5];
1532 params[4] = ((GLfloat *) p)[4];
1533 case TYPE_FLOAT_4:
1534 case TYPE_FLOATN_4:
1535 params[3] = ((GLfloat *) p)[3];
1536 case TYPE_FLOAT_3:
1537 case TYPE_FLOATN_3:
1538 params[2] = ((GLfloat *) p)[2];
1539 case TYPE_FLOAT_2:
1540 case TYPE_FLOATN_2:
1541 params[1] = ((GLfloat *) p)[1];
1542 case TYPE_FLOAT:
1543 case TYPE_FLOATN:
1544 params[0] = ((GLfloat *) p)[0];
1545 break;
1546
1547 case TYPE_DOUBLEN_2:
1548 params[1] = (GLfloat) (((GLdouble *) p)[1]);
1549 case TYPE_DOUBLEN:
1550 params[0] = (GLfloat) (((GLdouble *) p)[0]);
1551 break;
1552
1553 case TYPE_INT_4:
1554 params[3] = (GLfloat) (((GLint *) p)[3]);
1555 case TYPE_INT_3:
1556 params[2] = (GLfloat) (((GLint *) p)[2]);
1557 case TYPE_INT_2:
1558 case TYPE_ENUM_2:
1559 params[1] = (GLfloat) (((GLint *) p)[1]);
1560 case TYPE_INT:
1561 case TYPE_ENUM:
1562 params[0] = (GLfloat) (((GLint *) p)[0]);
1563 break;
1564
1565 case TYPE_INT_N:
1566 for (i = 0; i < v.value_int_n.n; i++)
1567 params[i] = INT_TO_FLOAT(v.value_int_n.ints[i]);
1568 break;
1569
1570 case TYPE_INT64:
1571 params[0] = (GLfloat) (((GLint64 *) p)[0]);
1572 break;
1573
1574 case TYPE_BOOLEAN:
1575 params[0] = BOOLEAN_TO_FLOAT(*(GLboolean*) p);
1576 break;
1577
1578 case TYPE_MATRIX:
1579 m = *(GLmatrix **) p;
1580 for (i = 0; i < 16; i++)
1581 params[i] = m->m[i];
1582 break;
1583
1584 case TYPE_MATRIX_T:
1585 m = *(GLmatrix **) p;
1586 for (i = 0; i < 16; i++)
1587 params[i] = m->m[transpose[i]];
1588 break;
1589
1590 case TYPE_BIT_0:
1591 case TYPE_BIT_1:
1592 case TYPE_BIT_2:
1593 case TYPE_BIT_3:
1594 case TYPE_BIT_4:
1595 case TYPE_BIT_5:
1596 case TYPE_BIT_6:
1597 case TYPE_BIT_7:
1598 shift = d->type - TYPE_BIT_0;
1599 params[0] = BOOLEAN_TO_FLOAT((*(GLbitfield *) p >> shift) & 1);
1600 break;
1601 }
1602 }
1603
1604 void GLAPIENTRY
1605 _mesa_GetIntegerv(GLenum pname, GLint *params)
1606 {
1607 const struct value_desc *d;
1608 union value v;
1609 GLmatrix *m;
1610 int shift, i;
1611 void *p;
1612
1613 d = find_value("glGetIntegerv", pname, &p, &v);
1614 switch (d->type) {
1615 case TYPE_INVALID:
1616 break;
1617 case TYPE_CONST:
1618 params[0] = d->offset;
1619 break;
1620
1621 case TYPE_FLOAT_8:
1622 params[7] = IROUND(((GLfloat *) p)[7]);
1623 params[6] = IROUND(((GLfloat *) p)[6]);
1624 params[5] = IROUND(((GLfloat *) p)[5]);
1625 params[4] = IROUND(((GLfloat *) p)[4]);
1626 case TYPE_FLOAT_4:
1627 params[3] = IROUND(((GLfloat *) p)[3]);
1628 case TYPE_FLOAT_3:
1629 params[2] = IROUND(((GLfloat *) p)[2]);
1630 case TYPE_FLOAT_2:
1631 params[1] = IROUND(((GLfloat *) p)[1]);
1632 case TYPE_FLOAT:
1633 params[0] = IROUND(((GLfloat *) p)[0]);
1634 break;
1635
1636 case TYPE_FLOATN_4:
1637 params[3] = FLOAT_TO_INT(((GLfloat *) p)[3]);
1638 case TYPE_FLOATN_3:
1639 params[2] = FLOAT_TO_INT(((GLfloat *) p)[2]);
1640 case TYPE_FLOATN_2:
1641 params[1] = FLOAT_TO_INT(((GLfloat *) p)[1]);
1642 case TYPE_FLOATN:
1643 params[0] = FLOAT_TO_INT(((GLfloat *) p)[0]);
1644 break;
1645
1646 case TYPE_DOUBLEN_2:
1647 params[1] = FLOAT_TO_INT(((GLdouble *) p)[1]);
1648 case TYPE_DOUBLEN:
1649 params[0] = FLOAT_TO_INT(((GLdouble *) p)[0]);
1650 break;
1651
1652 case TYPE_INT_4:
1653 params[3] = ((GLint *) p)[3];
1654 case TYPE_INT_3:
1655 params[2] = ((GLint *) p)[2];
1656 case TYPE_INT_2:
1657 case TYPE_ENUM_2:
1658 params[1] = ((GLint *) p)[1];
1659 case TYPE_INT:
1660 case TYPE_ENUM:
1661 params[0] = ((GLint *) p)[0];
1662 break;
1663
1664 case TYPE_INT_N:
1665 for (i = 0; i < v.value_int_n.n; i++)
1666 params[i] = v.value_int_n.ints[i];
1667 break;
1668
1669 case TYPE_INT64:
1670 params[0] = INT64_TO_INT(((GLint64 *) p)[0]);
1671 break;
1672
1673 case TYPE_BOOLEAN:
1674 params[0] = BOOLEAN_TO_INT(*(GLboolean*) p);
1675 break;
1676
1677 case TYPE_MATRIX:
1678 m = *(GLmatrix **) p;
1679 for (i = 0; i < 16; i++)
1680 params[i] = FLOAT_TO_INT(m->m[i]);
1681 break;
1682
1683 case TYPE_MATRIX_T:
1684 m = *(GLmatrix **) p;
1685 for (i = 0; i < 16; i++)
1686 params[i] = FLOAT_TO_INT(m->m[transpose[i]]);
1687 break;
1688
1689 case TYPE_BIT_0:
1690 case TYPE_BIT_1:
1691 case TYPE_BIT_2:
1692 case TYPE_BIT_3:
1693 case TYPE_BIT_4:
1694 case TYPE_BIT_5:
1695 case TYPE_BIT_6:
1696 case TYPE_BIT_7:
1697 shift = d->type - TYPE_BIT_0;
1698 params[0] = (*(GLbitfield *) p >> shift) & 1;
1699 break;
1700 }
1701 }
1702
1703 void GLAPIENTRY
1704 _mesa_GetInteger64v(GLenum pname, GLint64 *params)
1705 {
1706 const struct value_desc *d;
1707 union value v;
1708 GLmatrix *m;
1709 int shift, i;
1710 void *p;
1711
1712 d = find_value("glGetInteger64v", pname, &p, &v);
1713 switch (d->type) {
1714 case TYPE_INVALID:
1715 break;
1716 case TYPE_CONST:
1717 params[0] = d->offset;
1718 break;
1719
1720 case TYPE_FLOAT_8:
1721 params[7] = IROUND64(((GLfloat *) p)[7]);
1722 params[6] = IROUND64(((GLfloat *) p)[6]);
1723 params[5] = IROUND64(((GLfloat *) p)[5]);
1724 params[4] = IROUND64(((GLfloat *) p)[4]);
1725 case TYPE_FLOAT_4:
1726 params[3] = IROUND64(((GLfloat *) p)[3]);
1727 case TYPE_FLOAT_3:
1728 params[2] = IROUND64(((GLfloat *) p)[2]);
1729 case TYPE_FLOAT_2:
1730 params[1] = IROUND64(((GLfloat *) p)[1]);
1731 case TYPE_FLOAT:
1732 params[0] = IROUND64(((GLfloat *) p)[0]);
1733 break;
1734
1735 case TYPE_FLOATN_4:
1736 params[3] = FLOAT_TO_INT(((GLfloat *) p)[3]);
1737 case TYPE_FLOATN_3:
1738 params[2] = FLOAT_TO_INT(((GLfloat *) p)[2]);
1739 case TYPE_FLOATN_2:
1740 params[1] = FLOAT_TO_INT(((GLfloat *) p)[1]);
1741 case TYPE_FLOATN:
1742 params[0] = FLOAT_TO_INT(((GLfloat *) p)[0]);
1743 break;
1744
1745 case TYPE_DOUBLEN_2:
1746 params[1] = FLOAT_TO_INT(((GLdouble *) p)[1]);
1747 case TYPE_DOUBLEN:
1748 params[0] = FLOAT_TO_INT(((GLdouble *) p)[0]);
1749 break;
1750
1751 case TYPE_INT_4:
1752 params[3] = ((GLint *) p)[3];
1753 case TYPE_INT_3:
1754 params[2] = ((GLint *) p)[2];
1755 case TYPE_INT_2:
1756 case TYPE_ENUM_2:
1757 params[1] = ((GLint *) p)[1];
1758 case TYPE_INT:
1759 case TYPE_ENUM:
1760 params[0] = ((GLint *) p)[0];
1761 break;
1762
1763 case TYPE_INT_N:
1764 for (i = 0; i < v.value_int_n.n; i++)
1765 params[i] = INT_TO_BOOLEAN(v.value_int_n.ints[i]);
1766 break;
1767
1768 case TYPE_INT64:
1769 params[0] = ((GLint64 *) p)[0];
1770 break;
1771
1772 case TYPE_BOOLEAN:
1773 params[0] = ((GLboolean*) p)[0];
1774 break;
1775
1776 case TYPE_MATRIX:
1777 m = *(GLmatrix **) p;
1778 for (i = 0; i < 16; i++)
1779 params[i] = FLOAT_TO_INT64(m->m[i]);
1780 break;
1781
1782 case TYPE_MATRIX_T:
1783 m = *(GLmatrix **) p;
1784 for (i = 0; i < 16; i++)
1785 params[i] = FLOAT_TO_INT64(m->m[transpose[i]]);
1786 break;
1787
1788 case TYPE_BIT_0:
1789 case TYPE_BIT_1:
1790 case TYPE_BIT_2:
1791 case TYPE_BIT_3:
1792 case TYPE_BIT_4:
1793 case TYPE_BIT_5:
1794 case TYPE_BIT_6:
1795 case TYPE_BIT_7:
1796 shift = d->type - TYPE_BIT_0;
1797 params[0] = (*(GLbitfield *) p >> shift) & 1;
1798 break;
1799 }
1800 }
1801
1802 void GLAPIENTRY
1803 _mesa_GetDoublev(GLenum pname, GLdouble *params)
1804 {
1805 const struct value_desc *d;
1806 union value v;
1807 GLmatrix *m;
1808 int shift, i;
1809 void *p;
1810
1811 d = find_value("glGetDoublev", pname, &p, &v);
1812 switch (d->type) {
1813 case TYPE_INVALID:
1814 break;
1815 case TYPE_CONST:
1816 params[0] = d->offset;
1817 break;
1818
1819 case TYPE_FLOAT_8:
1820 params[7] = ((GLfloat *) p)[7];
1821 params[6] = ((GLfloat *) p)[6];
1822 params[5] = ((GLfloat *) p)[5];
1823 params[4] = ((GLfloat *) p)[4];
1824 case TYPE_FLOAT_4:
1825 case TYPE_FLOATN_4:
1826 params[3] = ((GLfloat *) p)[3];
1827 case TYPE_FLOAT_3:
1828 case TYPE_FLOATN_3:
1829 params[2] = ((GLfloat *) p)[2];
1830 case TYPE_FLOAT_2:
1831 case TYPE_FLOATN_2:
1832 params[1] = ((GLfloat *) p)[1];
1833 case TYPE_FLOAT:
1834 case TYPE_FLOATN:
1835 params[0] = ((GLfloat *) p)[0];
1836 break;
1837
1838 case TYPE_DOUBLEN_2:
1839 params[1] = ((GLdouble *) p)[1];
1840 case TYPE_DOUBLEN:
1841 params[0] = ((GLdouble *) p)[0];
1842 break;
1843
1844 case TYPE_INT_4:
1845 params[3] = ((GLint *) p)[3];
1846 case TYPE_INT_3:
1847 params[2] = ((GLint *) p)[2];
1848 case TYPE_INT_2:
1849 case TYPE_ENUM_2:
1850 params[1] = ((GLint *) p)[1];
1851 case TYPE_INT:
1852 case TYPE_ENUM:
1853 params[0] = ((GLint *) p)[0];
1854 break;
1855
1856 case TYPE_INT_N:
1857 for (i = 0; i < v.value_int_n.n; i++)
1858 params[i] = v.value_int_n.ints[i];
1859 break;
1860
1861 case TYPE_INT64:
1862 params[0] = (GLdouble) (((GLint64 *) p)[0]);
1863 break;
1864
1865 case TYPE_BOOLEAN:
1866 params[0] = *(GLboolean*) p;
1867 break;
1868
1869 case TYPE_MATRIX:
1870 m = *(GLmatrix **) p;
1871 for (i = 0; i < 16; i++)
1872 params[i] = m->m[i];
1873 break;
1874
1875 case TYPE_MATRIX_T:
1876 m = *(GLmatrix **) p;
1877 for (i = 0; i < 16; i++)
1878 params[i] = m->m[transpose[i]];
1879 break;
1880
1881 case TYPE_BIT_0:
1882 case TYPE_BIT_1:
1883 case TYPE_BIT_2:
1884 case TYPE_BIT_3:
1885 case TYPE_BIT_4:
1886 case TYPE_BIT_5:
1887 case TYPE_BIT_6:
1888 case TYPE_BIT_7:
1889 shift = d->type - TYPE_BIT_0;
1890 params[0] = (*(GLbitfield *) p >> shift) & 1;
1891 break;
1892 }
1893 }
1894
1895 /**
1896 * Convert a GL texture binding enum such as GL_TEXTURE_BINDING_2D
1897 * into the corresponding Mesa texture target index.
1898 * \return TEXTURE_x_INDEX or -1 if binding is invalid
1899 */
1900 static int
1901 tex_binding_to_index(const struct gl_context *ctx, GLenum binding)
1902 {
1903 switch (binding) {
1904 case GL_TEXTURE_BINDING_1D:
1905 return _mesa_is_desktop_gl(ctx) ? TEXTURE_1D_INDEX : -1;
1906 case GL_TEXTURE_BINDING_2D:
1907 return TEXTURE_2D_INDEX;
1908 case GL_TEXTURE_BINDING_3D:
1909 return ctx->API != API_OPENGLES ? TEXTURE_3D_INDEX : -1;
1910 case GL_TEXTURE_BINDING_CUBE_MAP:
1911 return ctx->Extensions.ARB_texture_cube_map
1912 ? TEXTURE_CUBE_INDEX : -1;
1913 case GL_TEXTURE_BINDING_RECTANGLE:
1914 return _mesa_is_desktop_gl(ctx) && ctx->Extensions.NV_texture_rectangle
1915 ? TEXTURE_RECT_INDEX : -1;
1916 case GL_TEXTURE_BINDING_1D_ARRAY:
1917 return _mesa_is_desktop_gl(ctx) && ctx->Extensions.EXT_texture_array
1918 ? TEXTURE_1D_ARRAY_INDEX : -1;
1919 case GL_TEXTURE_BINDING_2D_ARRAY:
1920 return (_mesa_is_desktop_gl(ctx) && ctx->Extensions.EXT_texture_array)
1921 || _mesa_is_gles3(ctx)
1922 ? TEXTURE_2D_ARRAY_INDEX : -1;
1923 case GL_TEXTURE_BINDING_BUFFER:
1924 return (_mesa_has_ARB_texture_buffer_object(ctx) ||
1925 _mesa_has_OES_texture_buffer(ctx)) ?
1926 TEXTURE_BUFFER_INDEX : -1;
1927 case GL_TEXTURE_BINDING_CUBE_MAP_ARRAY:
1928 return _mesa_has_texture_cube_map_array(ctx)
1929 ? TEXTURE_CUBE_ARRAY_INDEX : -1;
1930 case GL_TEXTURE_BINDING_2D_MULTISAMPLE:
1931 return _mesa_is_desktop_gl(ctx) && ctx->Extensions.ARB_texture_multisample
1932 ? TEXTURE_2D_MULTISAMPLE_INDEX : -1;
1933 case GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY:
1934 return _mesa_is_desktop_gl(ctx) && ctx->Extensions.ARB_texture_multisample
1935 ? TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX : -1;
1936 default:
1937 return -1;
1938 }
1939 }
1940
1941 static enum value_type
1942 find_value_indexed(const char *func, GLenum pname, GLuint index, union value *v)
1943 {
1944 GET_CURRENT_CONTEXT(ctx);
1945
1946 switch (pname) {
1947
1948 case GL_BLEND:
1949 if (index >= ctx->Const.MaxDrawBuffers)
1950 goto invalid_value;
1951 if (!ctx->Extensions.EXT_draw_buffers2)
1952 goto invalid_enum;
1953 v->value_int = (ctx->Color.BlendEnabled >> index) & 1;
1954 return TYPE_INT;
1955
1956 case GL_BLEND_SRC:
1957 /* fall-through */
1958 case GL_BLEND_SRC_RGB:
1959 if (index >= ctx->Const.MaxDrawBuffers)
1960 goto invalid_value;
1961 if (!ctx->Extensions.ARB_draw_buffers_blend)
1962 goto invalid_enum;
1963 v->value_int = ctx->Color.Blend[index].SrcRGB;
1964 return TYPE_INT;
1965 case GL_BLEND_SRC_ALPHA:
1966 if (index >= ctx->Const.MaxDrawBuffers)
1967 goto invalid_value;
1968 if (!ctx->Extensions.ARB_draw_buffers_blend)
1969 goto invalid_enum;
1970 v->value_int = ctx->Color.Blend[index].SrcA;
1971 return TYPE_INT;
1972 case GL_BLEND_DST:
1973 /* fall-through */
1974 case GL_BLEND_DST_RGB:
1975 if (index >= ctx->Const.MaxDrawBuffers)
1976 goto invalid_value;
1977 if (!ctx->Extensions.ARB_draw_buffers_blend)
1978 goto invalid_enum;
1979 v->value_int = ctx->Color.Blend[index].DstRGB;
1980 return TYPE_INT;
1981 case GL_BLEND_DST_ALPHA:
1982 if (index >= ctx->Const.MaxDrawBuffers)
1983 goto invalid_value;
1984 if (!ctx->Extensions.ARB_draw_buffers_blend)
1985 goto invalid_enum;
1986 v->value_int = ctx->Color.Blend[index].DstA;
1987 return TYPE_INT;
1988 case GL_BLEND_EQUATION_RGB:
1989 if (index >= ctx->Const.MaxDrawBuffers)
1990 goto invalid_value;
1991 if (!ctx->Extensions.ARB_draw_buffers_blend)
1992 goto invalid_enum;
1993 v->value_int = ctx->Color.Blend[index].EquationRGB;
1994 return TYPE_INT;
1995 case GL_BLEND_EQUATION_ALPHA:
1996 if (index >= ctx->Const.MaxDrawBuffers)
1997 goto invalid_value;
1998 if (!ctx->Extensions.ARB_draw_buffers_blend)
1999 goto invalid_enum;
2000 v->value_int = ctx->Color.Blend[index].EquationA;
2001 return TYPE_INT;
2002
2003 case GL_COLOR_WRITEMASK:
2004 if (index >= ctx->Const.MaxDrawBuffers)
2005 goto invalid_value;
2006 if (!ctx->Extensions.EXT_draw_buffers2)
2007 goto invalid_enum;
2008 v->value_int_4[0] = ctx->Color.ColorMask[index][RCOMP] ? 1 : 0;
2009 v->value_int_4[1] = ctx->Color.ColorMask[index][GCOMP] ? 1 : 0;
2010 v->value_int_4[2] = ctx->Color.ColorMask[index][BCOMP] ? 1 : 0;
2011 v->value_int_4[3] = ctx->Color.ColorMask[index][ACOMP] ? 1 : 0;
2012 return TYPE_INT_4;
2013
2014 case GL_SCISSOR_BOX:
2015 if (index >= ctx->Const.MaxViewports)
2016 goto invalid_value;
2017 v->value_int_4[0] = ctx->Scissor.ScissorArray[index].X;
2018 v->value_int_4[1] = ctx->Scissor.ScissorArray[index].Y;
2019 v->value_int_4[2] = ctx->Scissor.ScissorArray[index].Width;
2020 v->value_int_4[3] = ctx->Scissor.ScissorArray[index].Height;
2021 return TYPE_INT_4;
2022
2023 case GL_WINDOW_RECTANGLE_EXT:
2024 if (!ctx->Extensions.EXT_window_rectangles)
2025 goto invalid_enum;
2026 if (index >= ctx->Const.MaxWindowRectangles)
2027 goto invalid_value;
2028 v->value_int_4[0] = ctx->Scissor.WindowRects[index].X;
2029 v->value_int_4[1] = ctx->Scissor.WindowRects[index].Y;
2030 v->value_int_4[2] = ctx->Scissor.WindowRects[index].Width;
2031 v->value_int_4[3] = ctx->Scissor.WindowRects[index].Height;
2032 return TYPE_INT_4;
2033
2034 case GL_VIEWPORT:
2035 if (index >= ctx->Const.MaxViewports)
2036 goto invalid_value;
2037 v->value_float_4[0] = ctx->ViewportArray[index].X;
2038 v->value_float_4[1] = ctx->ViewportArray[index].Y;
2039 v->value_float_4[2] = ctx->ViewportArray[index].Width;
2040 v->value_float_4[3] = ctx->ViewportArray[index].Height;
2041 return TYPE_FLOAT_4;
2042
2043 case GL_DEPTH_RANGE:
2044 if (index >= ctx->Const.MaxViewports)
2045 goto invalid_value;
2046 v->value_double_2[0] = ctx->ViewportArray[index].Near;
2047 v->value_double_2[1] = ctx->ViewportArray[index].Far;
2048 return TYPE_DOUBLEN_2;
2049
2050 case GL_TRANSFORM_FEEDBACK_BUFFER_START:
2051 if (index >= ctx->Const.MaxTransformFeedbackBuffers)
2052 goto invalid_value;
2053 if (!ctx->Extensions.EXT_transform_feedback)
2054 goto invalid_enum;
2055 v->value_int64 = ctx->TransformFeedback.CurrentObject->Offset[index];
2056 return TYPE_INT64;
2057
2058 case GL_TRANSFORM_FEEDBACK_BUFFER_SIZE:
2059 if (index >= ctx->Const.MaxTransformFeedbackBuffers)
2060 goto invalid_value;
2061 if (!ctx->Extensions.EXT_transform_feedback)
2062 goto invalid_enum;
2063 v->value_int64
2064 = ctx->TransformFeedback.CurrentObject->RequestedSize[index];
2065 return TYPE_INT64;
2066
2067 case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING:
2068 if (index >= ctx->Const.MaxTransformFeedbackBuffers)
2069 goto invalid_value;
2070 if (!ctx->Extensions.EXT_transform_feedback)
2071 goto invalid_enum;
2072 v->value_int = ctx->TransformFeedback.CurrentObject->BufferNames[index];
2073 return TYPE_INT;
2074
2075 case GL_UNIFORM_BUFFER_BINDING:
2076 if (index >= ctx->Const.MaxUniformBufferBindings)
2077 goto invalid_value;
2078 if (!ctx->Extensions.ARB_uniform_buffer_object)
2079 goto invalid_enum;
2080 v->value_int = ctx->UniformBufferBindings[index].BufferObject->Name;
2081 return TYPE_INT;
2082
2083 case GL_UNIFORM_BUFFER_START:
2084 if (index >= ctx->Const.MaxUniformBufferBindings)
2085 goto invalid_value;
2086 if (!ctx->Extensions.ARB_uniform_buffer_object)
2087 goto invalid_enum;
2088 v->value_int = ctx->UniformBufferBindings[index].Offset < 0 ? 0 :
2089 ctx->UniformBufferBindings[index].Offset;
2090 return TYPE_INT;
2091
2092 case GL_UNIFORM_BUFFER_SIZE:
2093 if (index >= ctx->Const.MaxUniformBufferBindings)
2094 goto invalid_value;
2095 if (!ctx->Extensions.ARB_uniform_buffer_object)
2096 goto invalid_enum;
2097 v->value_int = ctx->UniformBufferBindings[index].Size < 0 ? 0 :
2098 ctx->UniformBufferBindings[index].Size;
2099 return TYPE_INT;
2100
2101 /* ARB_shader_storage_buffer_object */
2102 case GL_SHADER_STORAGE_BUFFER_BINDING:
2103 if (!ctx->Extensions.ARB_shader_storage_buffer_object)
2104 goto invalid_enum;
2105 if (index >= ctx->Const.MaxShaderStorageBufferBindings)
2106 goto invalid_value;
2107 v->value_int = ctx->ShaderStorageBufferBindings[index].BufferObject->Name;
2108 return TYPE_INT;
2109
2110 case GL_SHADER_STORAGE_BUFFER_START:
2111 if (!ctx->Extensions.ARB_shader_storage_buffer_object)
2112 goto invalid_enum;
2113 if (index >= ctx->Const.MaxShaderStorageBufferBindings)
2114 goto invalid_value;
2115 v->value_int = ctx->ShaderStorageBufferBindings[index].Offset < 0 ? 0 :
2116 ctx->ShaderStorageBufferBindings[index].Offset;
2117 return TYPE_INT;
2118
2119 case GL_SHADER_STORAGE_BUFFER_SIZE:
2120 if (!ctx->Extensions.ARB_shader_storage_buffer_object)
2121 goto invalid_enum;
2122 if (index >= ctx->Const.MaxShaderStorageBufferBindings)
2123 goto invalid_value;
2124 v->value_int = ctx->ShaderStorageBufferBindings[index].Size < 0 ? 0 :
2125 ctx->ShaderStorageBufferBindings[index].Size;
2126 return TYPE_INT;
2127
2128 /* ARB_texture_multisample / GL3.2 */
2129 case GL_SAMPLE_MASK_VALUE:
2130 if (index != 0)
2131 goto invalid_value;
2132 if (!ctx->Extensions.ARB_texture_multisample)
2133 goto invalid_enum;
2134 v->value_int = ctx->Multisample.SampleMaskValue;
2135 return TYPE_INT;
2136
2137 case GL_ATOMIC_COUNTER_BUFFER_BINDING:
2138 if (!ctx->Extensions.ARB_shader_atomic_counters)
2139 goto invalid_enum;
2140 if (index >= ctx->Const.MaxAtomicBufferBindings)
2141 goto invalid_value;
2142 v->value_int = ctx->AtomicBufferBindings[index].BufferObject->Name;
2143 return TYPE_INT;
2144
2145 case GL_ATOMIC_COUNTER_BUFFER_START:
2146 if (!ctx->Extensions.ARB_shader_atomic_counters)
2147 goto invalid_enum;
2148 if (index >= ctx->Const.MaxAtomicBufferBindings)
2149 goto invalid_value;
2150 v->value_int64 = ctx->AtomicBufferBindings[index].Offset;
2151 return TYPE_INT64;
2152
2153 case GL_ATOMIC_COUNTER_BUFFER_SIZE:
2154 if (!ctx->Extensions.ARB_shader_atomic_counters)
2155 goto invalid_enum;
2156 if (index >= ctx->Const.MaxAtomicBufferBindings)
2157 goto invalid_value;
2158 v->value_int64 = ctx->AtomicBufferBindings[index].Size;
2159 return TYPE_INT64;
2160
2161 case GL_VERTEX_BINDING_DIVISOR:
2162 if ((!_mesa_is_desktop_gl(ctx) || !ctx->Extensions.ARB_instanced_arrays) &&
2163 !_mesa_is_gles31(ctx))
2164 goto invalid_enum;
2165 if (index >= ctx->Const.Program[MESA_SHADER_VERTEX].MaxAttribs)
2166 goto invalid_value;
2167 v->value_int = ctx->Array.VAO->BufferBinding[VERT_ATTRIB_GENERIC(index)].InstanceDivisor;
2168 return TYPE_INT;
2169
2170 case GL_VERTEX_BINDING_OFFSET:
2171 if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles31(ctx))
2172 goto invalid_enum;
2173 if (index >= ctx->Const.Program[MESA_SHADER_VERTEX].MaxAttribs)
2174 goto invalid_value;
2175 v->value_int = ctx->Array.VAO->BufferBinding[VERT_ATTRIB_GENERIC(index)].Offset;
2176 return TYPE_INT;
2177
2178 case GL_VERTEX_BINDING_STRIDE:
2179 if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles31(ctx))
2180 goto invalid_enum;
2181 if (index >= ctx->Const.Program[MESA_SHADER_VERTEX].MaxAttribs)
2182 goto invalid_value;
2183 v->value_int = ctx->Array.VAO->BufferBinding[VERT_ATTRIB_GENERIC(index)].Stride;
2184 return TYPE_INT;
2185
2186 case GL_VERTEX_BINDING_BUFFER:
2187 if (ctx->API == API_OPENGLES2 && ctx->Version < 31)
2188 goto invalid_enum;
2189 if (index >= ctx->Const.Program[MESA_SHADER_VERTEX].MaxAttribs)
2190 goto invalid_value;
2191 v->value_int = ctx->Array.VAO->BufferBinding[VERT_ATTRIB_GENERIC(index)].BufferObj->Name;
2192 return TYPE_INT;
2193
2194 /* ARB_shader_image_load_store */
2195 case GL_IMAGE_BINDING_NAME: {
2196 struct gl_texture_object *t;
2197
2198 if (!ctx->Extensions.ARB_shader_image_load_store)
2199 goto invalid_enum;
2200 if (index >= ctx->Const.MaxImageUnits)
2201 goto invalid_value;
2202
2203 t = ctx->ImageUnits[index].TexObj;
2204 v->value_int = (t ? t->Name : 0);
2205 return TYPE_INT;
2206 }
2207
2208 case GL_IMAGE_BINDING_LEVEL:
2209 if (!ctx->Extensions.ARB_shader_image_load_store)
2210 goto invalid_enum;
2211 if (index >= ctx->Const.MaxImageUnits)
2212 goto invalid_value;
2213
2214 v->value_int = ctx->ImageUnits[index].Level;
2215 return TYPE_INT;
2216
2217 case GL_IMAGE_BINDING_LAYERED:
2218 if (!ctx->Extensions.ARB_shader_image_load_store)
2219 goto invalid_enum;
2220 if (index >= ctx->Const.MaxImageUnits)
2221 goto invalid_value;
2222
2223 v->value_int = ctx->ImageUnits[index].Layered;
2224 return TYPE_INT;
2225
2226 case GL_IMAGE_BINDING_LAYER:
2227 if (!ctx->Extensions.ARB_shader_image_load_store)
2228 goto invalid_enum;
2229 if (index >= ctx->Const.MaxImageUnits)
2230 goto invalid_value;
2231
2232 v->value_int = ctx->ImageUnits[index].Layer;
2233 return TYPE_INT;
2234
2235 case GL_IMAGE_BINDING_ACCESS:
2236 if (!ctx->Extensions.ARB_shader_image_load_store)
2237 goto invalid_enum;
2238 if (index >= ctx->Const.MaxImageUnits)
2239 goto invalid_value;
2240
2241 v->value_int = ctx->ImageUnits[index].Access;
2242 return TYPE_INT;
2243
2244 case GL_IMAGE_BINDING_FORMAT:
2245 if (!ctx->Extensions.ARB_shader_image_load_store)
2246 goto invalid_enum;
2247 if (index >= ctx->Const.MaxImageUnits)
2248 goto invalid_value;
2249
2250 v->value_int = ctx->ImageUnits[index].Format;
2251 return TYPE_INT;
2252
2253 /* ARB_direct_state_access */
2254 case GL_TEXTURE_BINDING_1D:
2255 case GL_TEXTURE_BINDING_1D_ARRAY:
2256 case GL_TEXTURE_BINDING_2D:
2257 case GL_TEXTURE_BINDING_2D_ARRAY:
2258 case GL_TEXTURE_BINDING_2D_MULTISAMPLE:
2259 case GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY:
2260 case GL_TEXTURE_BINDING_3D:
2261 case GL_TEXTURE_BINDING_BUFFER:
2262 case GL_TEXTURE_BINDING_CUBE_MAP:
2263 case GL_TEXTURE_BINDING_CUBE_MAP_ARRAY:
2264 case GL_TEXTURE_BINDING_RECTANGLE: {
2265 int target;
2266
2267 if (ctx->API != API_OPENGL_CORE)
2268 goto invalid_enum;
2269 target = tex_binding_to_index(ctx, pname);
2270 if (target < 0)
2271 goto invalid_enum;
2272 if (index >= _mesa_max_tex_unit(ctx))
2273 goto invalid_value;
2274
2275 v->value_int = ctx->Texture.Unit[index].CurrentTex[target]->Name;
2276 return TYPE_INT;
2277 }
2278
2279 case GL_SAMPLER_BINDING: {
2280 struct gl_sampler_object *samp;
2281
2282 if (ctx->API != API_OPENGL_CORE)
2283 goto invalid_enum;
2284 if (index >= _mesa_max_tex_unit(ctx))
2285 goto invalid_value;
2286
2287 samp = ctx->Texture.Unit[index].Sampler;
2288 v->value_int = samp ? samp->Name : 0;
2289 return TYPE_INT;
2290 }
2291
2292 case GL_MAX_COMPUTE_WORK_GROUP_COUNT:
2293 if (!_mesa_has_compute_shaders(ctx))
2294 goto invalid_enum;
2295 if (index >= 3)
2296 goto invalid_value;
2297 v->value_int = ctx->Const.MaxComputeWorkGroupCount[index];
2298 return TYPE_INT;
2299
2300 case GL_MAX_COMPUTE_WORK_GROUP_SIZE:
2301 if (!_mesa_has_compute_shaders(ctx))
2302 goto invalid_enum;
2303 if (index >= 3)
2304 goto invalid_value;
2305 v->value_int = ctx->Const.MaxComputeWorkGroupSize[index];
2306 return TYPE_INT;
2307
2308 /* ARB_compute_variable_group_size */
2309 case GL_MAX_COMPUTE_VARIABLE_GROUP_SIZE_ARB:
2310 if (!ctx->Extensions.ARB_compute_variable_group_size)
2311 goto invalid_enum;
2312 if (index >= 3)
2313 goto invalid_value;
2314 v->value_int = ctx->Const.MaxComputeVariableGroupSize[index];
2315 return TYPE_INT;
2316 }
2317
2318 invalid_enum:
2319 _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func,
2320 _mesa_enum_to_string(pname));
2321 return TYPE_INVALID;
2322 invalid_value:
2323 _mesa_error(ctx, GL_INVALID_VALUE, "%s(pname=%s)", func,
2324 _mesa_enum_to_string(pname));
2325 return TYPE_INVALID;
2326 }
2327
2328 void GLAPIENTRY
2329 _mesa_GetBooleani_v( GLenum pname, GLuint index, GLboolean *params )
2330 {
2331 union value v;
2332 enum value_type type =
2333 find_value_indexed("glGetBooleani_v", pname, index, &v);
2334
2335 switch (type) {
2336 case TYPE_INT:
2337 params[0] = INT_TO_BOOLEAN(v.value_int);
2338 break;
2339 case TYPE_INT_4:
2340 params[0] = INT_TO_BOOLEAN(v.value_int_4[0]);
2341 params[1] = INT_TO_BOOLEAN(v.value_int_4[1]);
2342 params[2] = INT_TO_BOOLEAN(v.value_int_4[2]);
2343 params[3] = INT_TO_BOOLEAN(v.value_int_4[3]);
2344 break;
2345 case TYPE_INT64:
2346 params[0] = INT64_TO_BOOLEAN(v.value_int64);
2347 break;
2348 default:
2349 ; /* nothing - GL error was recorded */
2350 }
2351 }
2352
2353 void GLAPIENTRY
2354 _mesa_GetIntegeri_v( GLenum pname, GLuint index, GLint *params )
2355 {
2356 union value v;
2357 enum value_type type =
2358 find_value_indexed("glGetIntegeri_v", pname, index, &v);
2359
2360 switch (type) {
2361 case TYPE_FLOAT_4:
2362 case TYPE_FLOATN_4:
2363 params[3] = IROUND(v.value_float_4[3]);
2364 case TYPE_FLOAT_3:
2365 case TYPE_FLOATN_3:
2366 params[2] = IROUND(v.value_float_4[2]);
2367 case TYPE_FLOAT_2:
2368 case TYPE_FLOATN_2:
2369 params[1] = IROUND(v.value_float_4[1]);
2370 case TYPE_FLOAT:
2371 case TYPE_FLOATN:
2372 params[0] = IROUND(v.value_float_4[0]);
2373 break;
2374
2375 case TYPE_DOUBLEN_2:
2376 params[1] = IROUND(v.value_double_2[1]);
2377 case TYPE_DOUBLEN:
2378 params[0] = IROUND(v.value_double_2[0]);
2379 break;
2380
2381 case TYPE_INT:
2382 params[0] = v.value_int;
2383 break;
2384 case TYPE_INT_4:
2385 params[0] = v.value_int_4[0];
2386 params[1] = v.value_int_4[1];
2387 params[2] = v.value_int_4[2];
2388 params[3] = v.value_int_4[3];
2389 break;
2390 case TYPE_INT64:
2391 params[0] = INT64_TO_INT(v.value_int64);
2392 break;
2393 default:
2394 ; /* nothing - GL error was recorded */
2395 }
2396 }
2397
2398 void GLAPIENTRY
2399 _mesa_GetInteger64i_v( GLenum pname, GLuint index, GLint64 *params )
2400 {
2401 union value v;
2402 enum value_type type =
2403 find_value_indexed("glGetInteger64i_v", pname, index, &v);
2404
2405 switch (type) {
2406 case TYPE_INT:
2407 params[0] = v.value_int;
2408 break;
2409 case TYPE_INT_4:
2410 params[0] = v.value_int_4[0];
2411 params[1] = v.value_int_4[1];
2412 params[2] = v.value_int_4[2];
2413 params[3] = v.value_int_4[3];
2414 break;
2415 case TYPE_INT64:
2416 params[0] = v.value_int64;
2417 break;
2418 default:
2419 ; /* nothing - GL error was recorded */
2420 }
2421 }
2422
2423 void GLAPIENTRY
2424 _mesa_GetFloati_v(GLenum pname, GLuint index, GLfloat *params)
2425 {
2426 int i;
2427 GLmatrix *m;
2428 union value v;
2429 enum value_type type =
2430 find_value_indexed("glGetFloati_v", pname, index, &v);
2431
2432 switch (type) {
2433 case TYPE_FLOAT_4:
2434 case TYPE_FLOATN_4:
2435 params[3] = v.value_float_4[3];
2436 case TYPE_FLOAT_3:
2437 case TYPE_FLOATN_3:
2438 params[2] = v.value_float_4[2];
2439 case TYPE_FLOAT_2:
2440 case TYPE_FLOATN_2:
2441 params[1] = v.value_float_4[1];
2442 case TYPE_FLOAT:
2443 case TYPE_FLOATN:
2444 params[0] = v.value_float_4[0];
2445 break;
2446
2447 case TYPE_DOUBLEN_2:
2448 params[1] = (GLfloat) v.value_double_2[1];
2449 case TYPE_DOUBLEN:
2450 params[0] = (GLfloat) v.value_double_2[0];
2451 break;
2452
2453 case TYPE_INT_4:
2454 params[3] = (GLfloat) v.value_int_4[3];
2455 case TYPE_INT_3:
2456 params[2] = (GLfloat) v.value_int_4[2];
2457 case TYPE_INT_2:
2458 case TYPE_ENUM_2:
2459 params[1] = (GLfloat) v.value_int_4[1];
2460 case TYPE_INT:
2461 case TYPE_ENUM:
2462 params[0] = (GLfloat) v.value_int_4[0];
2463 break;
2464
2465 case TYPE_INT_N:
2466 for (i = 0; i < v.value_int_n.n; i++)
2467 params[i] = INT_TO_FLOAT(v.value_int_n.ints[i]);
2468 break;
2469
2470 case TYPE_INT64:
2471 params[0] = (GLfloat) v.value_int64;
2472 break;
2473
2474 case TYPE_BOOLEAN:
2475 params[0] = BOOLEAN_TO_FLOAT(v.value_bool);
2476 break;
2477
2478 case TYPE_MATRIX:
2479 m = *(GLmatrix **) &v;
2480 for (i = 0; i < 16; i++)
2481 params[i] = m->m[i];
2482 break;
2483
2484 case TYPE_MATRIX_T:
2485 m = *(GLmatrix **) &v;
2486 for (i = 0; i < 16; i++)
2487 params[i] = m->m[transpose[i]];
2488 break;
2489
2490 default:
2491 ;
2492 }
2493 }
2494
2495 void GLAPIENTRY
2496 _mesa_GetDoublei_v(GLenum pname, GLuint index, GLdouble *params)
2497 {
2498 int i;
2499 GLmatrix *m;
2500 union value v;
2501 enum value_type type =
2502 find_value_indexed("glGetDoublei_v", pname, index, &v);
2503
2504 switch (type) {
2505 case TYPE_FLOAT_4:
2506 case TYPE_FLOATN_4:
2507 params[3] = (GLdouble) v.value_float_4[3];
2508 case TYPE_FLOAT_3:
2509 case TYPE_FLOATN_3:
2510 params[2] = (GLdouble) v.value_float_4[2];
2511 case TYPE_FLOAT_2:
2512 case TYPE_FLOATN_2:
2513 params[1] = (GLdouble) v.value_float_4[1];
2514 case TYPE_FLOAT:
2515 case TYPE_FLOATN:
2516 params[0] = (GLdouble) v.value_float_4[0];
2517 break;
2518
2519 case TYPE_DOUBLEN_2:
2520 params[1] = v.value_double_2[1];
2521 case TYPE_DOUBLEN:
2522 params[0] = v.value_double_2[0];
2523 break;
2524
2525 case TYPE_INT_4:
2526 params[3] = (GLdouble) v.value_int_4[3];
2527 case TYPE_INT_3:
2528 params[2] = (GLdouble) v.value_int_4[2];
2529 case TYPE_INT_2:
2530 case TYPE_ENUM_2:
2531 params[1] = (GLdouble) v.value_int_4[1];
2532 case TYPE_INT:
2533 case TYPE_ENUM:
2534 params[0] = (GLdouble) v.value_int_4[0];
2535 break;
2536
2537 case TYPE_INT_N:
2538 for (i = 0; i < v.value_int_n.n; i++)
2539 params[i] = (GLdouble) INT_TO_FLOAT(v.value_int_n.ints[i]);
2540 break;
2541
2542 case TYPE_INT64:
2543 params[0] = (GLdouble) v.value_int64;
2544 break;
2545
2546 case TYPE_BOOLEAN:
2547 params[0] = (GLdouble) BOOLEAN_TO_FLOAT(v.value_bool);
2548 break;
2549
2550 case TYPE_MATRIX:
2551 m = *(GLmatrix **) &v;
2552 for (i = 0; i < 16; i++)
2553 params[i] = (GLdouble) m->m[i];
2554 break;
2555
2556 case TYPE_MATRIX_T:
2557 m = *(GLmatrix **) &v;
2558 for (i = 0; i < 16; i++)
2559 params[i] = (GLdouble) m->m[transpose[i]];
2560 break;
2561
2562 default:
2563 ;
2564 }
2565 }
2566
2567 void GLAPIENTRY
2568 _mesa_GetFixedv(GLenum pname, GLfixed *params)
2569 {
2570 const struct value_desc *d;
2571 union value v;
2572 GLmatrix *m;
2573 int shift, i;
2574 void *p;
2575
2576 d = find_value("glGetDoublev", pname, &p, &v);
2577 switch (d->type) {
2578 case TYPE_INVALID:
2579 break;
2580 case TYPE_CONST:
2581 params[0] = INT_TO_FIXED(d->offset);
2582 break;
2583
2584 case TYPE_FLOAT_4:
2585 case TYPE_FLOATN_4:
2586 params[3] = FLOAT_TO_FIXED(((GLfloat *) p)[3]);
2587 case TYPE_FLOAT_3:
2588 case TYPE_FLOATN_3:
2589 params[2] = FLOAT_TO_FIXED(((GLfloat *) p)[2]);
2590 case TYPE_FLOAT_2:
2591 case TYPE_FLOATN_2:
2592 params[1] = FLOAT_TO_FIXED(((GLfloat *) p)[1]);
2593 case TYPE_FLOAT:
2594 case TYPE_FLOATN:
2595 params[0] = FLOAT_TO_FIXED(((GLfloat *) p)[0]);
2596 break;
2597
2598 case TYPE_DOUBLEN_2:
2599 params[1] = FLOAT_TO_FIXED(((GLdouble *) p)[1]);
2600 case TYPE_DOUBLEN:
2601 params[0] = FLOAT_TO_FIXED(((GLdouble *) p)[0]);
2602 break;
2603
2604 case TYPE_INT_4:
2605 params[3] = INT_TO_FIXED(((GLint *) p)[3]);
2606 case TYPE_INT_3:
2607 params[2] = INT_TO_FIXED(((GLint *) p)[2]);
2608 case TYPE_INT_2:
2609 case TYPE_ENUM_2:
2610 params[1] = INT_TO_FIXED(((GLint *) p)[1]);
2611 case TYPE_INT:
2612 case TYPE_ENUM:
2613 params[0] = INT_TO_FIXED(((GLint *) p)[0]);
2614 break;
2615
2616 case TYPE_INT_N:
2617 for (i = 0; i < v.value_int_n.n; i++)
2618 params[i] = INT_TO_FIXED(v.value_int_n.ints[i]);
2619 break;
2620
2621 case TYPE_INT64:
2622 params[0] = ((GLint64 *) p)[0];
2623 break;
2624
2625 case TYPE_BOOLEAN:
2626 params[0] = BOOLEAN_TO_FIXED(((GLboolean*) p)[0]);
2627 break;
2628
2629 case TYPE_MATRIX:
2630 m = *(GLmatrix **) p;
2631 for (i = 0; i < 16; i++)
2632 params[i] = FLOAT_TO_FIXED(m->m[i]);
2633 break;
2634
2635 case TYPE_MATRIX_T:
2636 m = *(GLmatrix **) p;
2637 for (i = 0; i < 16; i++)
2638 params[i] = FLOAT_TO_FIXED(m->m[transpose[i]]);
2639 break;
2640
2641 case TYPE_BIT_0:
2642 case TYPE_BIT_1:
2643 case TYPE_BIT_2:
2644 case TYPE_BIT_3:
2645 case TYPE_BIT_4:
2646 case TYPE_BIT_5:
2647 case TYPE_BIT_6:
2648 case TYPE_BIT_7:
2649 shift = d->type - TYPE_BIT_0;
2650 params[0] = BOOLEAN_TO_FIXED((*(GLbitfield *) p >> shift) & 1);
2651 break;
2652 }
2653 }