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