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