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mesa: rename gl_vertex_attrib_array gl_array_attributes
[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_array_attributes *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_EXT_textrue_integer */
1080 case GL_RGBA_INTEGER_MODE_EXT:
1081 v->value_int = (ctx->DrawBuffer->_IntegerBuffers != 0);
1082 break;
1083 /* GL_ATI_meminfo & GL_NVX_gpu_memory_info */
1084 case GL_VBO_FREE_MEMORY_ATI:
1085 case GL_TEXTURE_FREE_MEMORY_ATI:
1086 case GL_RENDERBUFFER_FREE_MEMORY_ATI:
1087 case GL_GPU_MEMORY_INFO_DEDICATED_VIDMEM_NVX:
1088 case GL_GPU_MEMORY_INFO_TOTAL_AVAILABLE_MEMORY_NVX:
1089 case GL_GPU_MEMORY_INFO_CURRENT_AVAILABLE_VIDMEM_NVX:
1090 case GL_GPU_MEMORY_INFO_EVICTION_COUNT_NVX:
1091 case GL_GPU_MEMORY_INFO_EVICTED_MEMORY_NVX:
1092 {
1093 struct gl_memory_info info;
1094
1095 ctx->Driver.QueryMemoryInfo(ctx, &info);
1096
1097 if (d->pname == GL_GPU_MEMORY_INFO_DEDICATED_VIDMEM_NVX)
1098 v->value_int = info.total_device_memory;
1099 else if (d->pname == GL_GPU_MEMORY_INFO_TOTAL_AVAILABLE_MEMORY_NVX)
1100 v->value_int = info.total_device_memory +
1101 info.total_staging_memory;
1102 else if (d->pname == GL_GPU_MEMORY_INFO_CURRENT_AVAILABLE_VIDMEM_NVX)
1103 v->value_int = info.avail_device_memory;
1104 else if (d->pname == GL_GPU_MEMORY_INFO_EVICTION_COUNT_NVX)
1105 v->value_int = info.nr_device_memory_evictions;
1106 else if (d->pname == GL_GPU_MEMORY_INFO_EVICTED_MEMORY_NVX)
1107 v->value_int = info.device_memory_evicted;
1108 else {
1109 /* ATI free memory enums.
1110 *
1111 * Since the GPU memory is (usually) page-table based, every two
1112 * consecutive elements are equal. From the GL_ATI_meminfo
1113 * specification:
1114 *
1115 * "param[0] - total memory free in the pool
1116 * param[1] - largest available free block in the pool
1117 * param[2] - total auxiliary memory free
1118 * param[3] - largest auxiliary free block"
1119 *
1120 * All three (VBO, TEXTURE, RENDERBUFFER) queries return
1121 * the same numbers here.
1122 */
1123 v->value_int_4[0] = info.avail_device_memory;
1124 v->value_int_4[1] = info.avail_device_memory;
1125 v->value_int_4[2] = info.avail_staging_memory;
1126 v->value_int_4[3] = info.avail_staging_memory;
1127 }
1128 }
1129 break;
1130 }
1131 }
1132
1133 /**
1134 * Check extra constraints on a struct value_desc descriptor
1135 *
1136 * If a struct value_desc has a non-NULL extra pointer, it means that
1137 * there are a number of extra constraints to check or actions to
1138 * perform. The extras is just an integer array where each integer
1139 * encode different constraints or actions.
1140 *
1141 * \param ctx current context
1142 * \param func name of calling glGet*v() function for error reporting
1143 * \param d the struct value_desc that has the extra constraints
1144 *
1145 * \return GL_FALSE if all of the constraints were not satisfied,
1146 * otherwise GL_TRUE.
1147 */
1148 static GLboolean
1149 check_extra(struct gl_context *ctx, const char *func, const struct value_desc *d)
1150 {
1151 const GLuint version = ctx->Version;
1152 GLboolean api_check = GL_FALSE;
1153 GLboolean api_found = GL_FALSE;
1154 const int *e;
1155
1156 for (e = d->extra; *e != EXTRA_END; e++) {
1157 switch (*e) {
1158 case EXTRA_VERSION_30:
1159 api_check = GL_TRUE;
1160 if (version >= 30)
1161 api_found = GL_TRUE;
1162 break;
1163 case EXTRA_VERSION_31:
1164 api_check = GL_TRUE;
1165 if (version >= 31)
1166 api_found = GL_TRUE;
1167 break;
1168 case EXTRA_VERSION_32:
1169 api_check = GL_TRUE;
1170 if (version >= 32)
1171 api_found = GL_TRUE;
1172 break;
1173 case EXTRA_NEW_FRAG_CLAMP:
1174 if (ctx->NewState & (_NEW_BUFFERS | _NEW_FRAG_CLAMP))
1175 _mesa_update_state(ctx);
1176 break;
1177 case EXTRA_API_ES2:
1178 api_check = GL_TRUE;
1179 if (ctx->API == API_OPENGLES2)
1180 api_found = GL_TRUE;
1181 break;
1182 case EXTRA_API_ES3:
1183 api_check = GL_TRUE;
1184 if (_mesa_is_gles3(ctx))
1185 api_found = GL_TRUE;
1186 break;
1187 case EXTRA_API_ES31:
1188 api_check = GL_TRUE;
1189 if (_mesa_is_gles31(ctx))
1190 api_found = GL_TRUE;
1191 break;
1192 case EXTRA_API_ES32:
1193 api_check = GL_TRUE;
1194 if (_mesa_is_gles32(ctx))
1195 api_found = GL_TRUE;
1196 break;
1197 case EXTRA_API_GL:
1198 api_check = GL_TRUE;
1199 if (_mesa_is_desktop_gl(ctx))
1200 api_found = GL_TRUE;
1201 break;
1202 case EXTRA_API_GL_CORE:
1203 api_check = GL_TRUE;
1204 if (ctx->API == API_OPENGL_CORE)
1205 api_found = GL_TRUE;
1206 break;
1207 case EXTRA_NEW_BUFFERS:
1208 if (ctx->NewState & _NEW_BUFFERS)
1209 _mesa_update_state(ctx);
1210 break;
1211 case EXTRA_FLUSH_CURRENT:
1212 FLUSH_CURRENT(ctx, 0);
1213 break;
1214 case EXTRA_VALID_DRAW_BUFFER:
1215 if (d->pname - GL_DRAW_BUFFER0_ARB >= ctx->Const.MaxDrawBuffers) {
1216 _mesa_error(ctx, GL_INVALID_OPERATION, "%s(draw buffer %u)",
1217 func, d->pname - GL_DRAW_BUFFER0_ARB);
1218 return GL_FALSE;
1219 }
1220 break;
1221 case EXTRA_VALID_TEXTURE_UNIT:
1222 if (ctx->Texture.CurrentUnit >= ctx->Const.MaxTextureCoordUnits) {
1223 _mesa_error(ctx, GL_INVALID_OPERATION, "%s(texture %u)",
1224 func, ctx->Texture.CurrentUnit);
1225 return GL_FALSE;
1226 }
1227 break;
1228 case EXTRA_VALID_CLIP_DISTANCE:
1229 if (d->pname - GL_CLIP_DISTANCE0 >= ctx->Const.MaxClipPlanes) {
1230 _mesa_error(ctx, GL_INVALID_ENUM, "%s(clip distance %u)",
1231 func, d->pname - GL_CLIP_DISTANCE0);
1232 return GL_FALSE;
1233 }
1234 break;
1235 case EXTRA_GLSL_130:
1236 api_check = GL_TRUE;
1237 if (ctx->Const.GLSLVersion >= 130)
1238 api_found = GL_TRUE;
1239 break;
1240 case EXTRA_EXT_UBO_GS:
1241 api_check = GL_TRUE;
1242 if (ctx->Extensions.ARB_uniform_buffer_object &&
1243 _mesa_has_geometry_shaders(ctx))
1244 api_found = GL_TRUE;
1245 break;
1246 case EXTRA_EXT_ATOMICS_GS:
1247 api_check = GL_TRUE;
1248 if (ctx->Extensions.ARB_shader_atomic_counters &&
1249 _mesa_has_geometry_shaders(ctx))
1250 api_found = GL_TRUE;
1251 break;
1252 case EXTRA_EXT_SHADER_IMAGE_GS:
1253 api_check = GL_TRUE;
1254 if (ctx->Extensions.ARB_shader_image_load_store &&
1255 _mesa_has_geometry_shaders(ctx))
1256 api_found = GL_TRUE;
1257 break;
1258 case EXTRA_EXT_ATOMICS_TESS:
1259 api_check = GL_TRUE;
1260 api_found = ctx->Extensions.ARB_shader_atomic_counters &&
1261 _mesa_has_tessellation(ctx);
1262 break;
1263 case EXTRA_EXT_SHADER_IMAGE_TESS:
1264 api_check = GL_TRUE;
1265 api_found = ctx->Extensions.ARB_shader_image_load_store &&
1266 _mesa_has_tessellation(ctx);
1267 break;
1268 case EXTRA_EXT_SSBO_GS:
1269 api_check = GL_TRUE;
1270 if (ctx->Extensions.ARB_shader_storage_buffer_object &&
1271 _mesa_has_geometry_shaders(ctx))
1272 api_found = GL_TRUE;
1273 break;
1274 case EXTRA_EXT_FB_NO_ATTACH_GS:
1275 api_check = GL_TRUE;
1276 if (ctx->Extensions.ARB_framebuffer_no_attachments &&
1277 (_mesa_is_desktop_gl(ctx) ||
1278 _mesa_has_OES_geometry_shader(ctx)))
1279 api_found = GL_TRUE;
1280 break;
1281 case EXTRA_EXT_ES_GS:
1282 api_check = GL_TRUE;
1283 if (_mesa_has_OES_geometry_shader(ctx))
1284 api_found = GL_TRUE;
1285 break;
1286 case EXTRA_END:
1287 break;
1288 default: /* *e is a offset into the extension struct */
1289 api_check = GL_TRUE;
1290 if (*(GLboolean *) ((char *) &ctx->Extensions + *e))
1291 api_found = GL_TRUE;
1292 break;
1293 }
1294 }
1295
1296 if (api_check && !api_found) {
1297 _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func,
1298 _mesa_enum_to_string(d->pname));
1299 return GL_FALSE;
1300 }
1301
1302 return GL_TRUE;
1303 }
1304
1305 static const struct value_desc error_value =
1306 { 0, 0, TYPE_INVALID, NO_OFFSET, NO_EXTRA };
1307
1308 /**
1309 * Find the struct value_desc corresponding to the enum 'pname'.
1310 *
1311 * We hash the enum value to get an index into the 'table' array,
1312 * which holds the index in the 'values' array of struct value_desc.
1313 * Once we've found the entry, we do the extra checks, if any, then
1314 * look up the value and return a pointer to it.
1315 *
1316 * If the value has to be computed (for example, it's the result of a
1317 * function call or we need to add 1 to it), we use the tmp 'v' to
1318 * store the result.
1319 *
1320 * \param func name of glGet*v() func for error reporting
1321 * \param pname the enum value we're looking up
1322 * \param p is were we return the pointer to the value
1323 * \param v a tmp union value variable in the calling glGet*v() function
1324 *
1325 * \return the struct value_desc corresponding to the enum or a struct
1326 * value_desc of TYPE_INVALID if not found. This lets the calling
1327 * glGet*v() function jump right into a switch statement and
1328 * handle errors there instead of having to check for NULL.
1329 */
1330 static const struct value_desc *
1331 find_value(const char *func, GLenum pname, void **p, union value *v)
1332 {
1333 GET_CURRENT_CONTEXT(ctx);
1334 struct gl_texture_unit *unit;
1335 int mask, hash;
1336 const struct value_desc *d;
1337 int api;
1338
1339 api = ctx->API;
1340 /* We index into the table_set[] list of per-API hash tables using the API's
1341 * value in the gl_api enum. Since GLES 3 doesn't have an API_OPENGL* enum
1342 * value since it's compatible with GLES2 its entry in table_set[] is at the
1343 * end.
1344 */
1345 STATIC_ASSERT(ARRAY_SIZE(table_set) == API_OPENGL_LAST + 4);
1346 if (ctx->API == API_OPENGLES2) {
1347 if (ctx->Version >= 32)
1348 api = API_OPENGL_LAST + 3;
1349 else if (ctx->Version >= 31)
1350 api = API_OPENGL_LAST + 2;
1351 else if (ctx->Version >= 30)
1352 api = API_OPENGL_LAST + 1;
1353 }
1354 mask = ARRAY_SIZE(table(api)) - 1;
1355 hash = (pname * prime_factor);
1356 while (1) {
1357 int idx = table(api)[hash & mask];
1358
1359 /* If the enum isn't valid, the hash walk ends with index 0,
1360 * pointing to the first entry of values[] which doesn't hold
1361 * any valid enum. */
1362 if (unlikely(idx == 0)) {
1363 _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func,
1364 _mesa_enum_to_string(pname));
1365 return &error_value;
1366 }
1367
1368 d = &values[idx];
1369 if (likely(d->pname == pname))
1370 break;
1371
1372 hash += prime_step;
1373 }
1374
1375 if (unlikely(d->extra && !check_extra(ctx, func, d)))
1376 return &error_value;
1377
1378 switch (d->location) {
1379 case LOC_BUFFER:
1380 *p = ((char *) ctx->DrawBuffer + d->offset);
1381 return d;
1382 case LOC_CONTEXT:
1383 *p = ((char *) ctx + d->offset);
1384 return d;
1385 case LOC_ARRAY:
1386 *p = ((char *) ctx->Array.VAO + d->offset);
1387 return d;
1388 case LOC_TEXUNIT:
1389 unit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
1390 *p = ((char *) unit + d->offset);
1391 return d;
1392 case LOC_CUSTOM:
1393 find_custom_value(ctx, d, v);
1394 *p = v;
1395 return d;
1396 default:
1397 assert(0);
1398 break;
1399 }
1400
1401 /* silence warning */
1402 return &error_value;
1403 }
1404
1405 static const int transpose[] = {
1406 0, 4, 8, 12,
1407 1, 5, 9, 13,
1408 2, 6, 10, 14,
1409 3, 7, 11, 15
1410 };
1411
1412 void GLAPIENTRY
1413 _mesa_GetBooleanv(GLenum pname, GLboolean *params)
1414 {
1415 const struct value_desc *d;
1416 union value v;
1417 GLmatrix *m;
1418 int shift, i;
1419 void *p;
1420
1421 d = find_value("glGetBooleanv", pname, &p, &v);
1422 switch (d->type) {
1423 case TYPE_INVALID:
1424 break;
1425 case TYPE_CONST:
1426 params[0] = INT_TO_BOOLEAN(d->offset);
1427 break;
1428
1429 case TYPE_FLOAT_8:
1430 params[7] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[7]);
1431 params[6] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[6]);
1432 params[5] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[5]);
1433 params[4] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[4]);
1434 case TYPE_FLOAT_4:
1435 case TYPE_FLOATN_4:
1436 params[3] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[3]);
1437 case TYPE_FLOAT_3:
1438 case TYPE_FLOATN_3:
1439 params[2] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[2]);
1440 case TYPE_FLOAT_2:
1441 case TYPE_FLOATN_2:
1442 params[1] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[1]);
1443 case TYPE_FLOAT:
1444 case TYPE_FLOATN:
1445 params[0] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[0]);
1446 break;
1447
1448 case TYPE_DOUBLEN_2:
1449 params[1] = FLOAT_TO_BOOLEAN(((GLdouble *) p)[1]);
1450 case TYPE_DOUBLEN:
1451 params[0] = FLOAT_TO_BOOLEAN(((GLdouble *) p)[0]);
1452 break;
1453
1454 case TYPE_INT_4:
1455 params[3] = INT_TO_BOOLEAN(((GLint *) p)[3]);
1456 case TYPE_INT_3:
1457 params[2] = INT_TO_BOOLEAN(((GLint *) p)[2]);
1458 case TYPE_INT_2:
1459 case TYPE_ENUM_2:
1460 params[1] = INT_TO_BOOLEAN(((GLint *) p)[1]);
1461 case TYPE_INT:
1462 case TYPE_ENUM:
1463 params[0] = INT_TO_BOOLEAN(((GLint *) p)[0]);
1464 break;
1465
1466 case TYPE_INT_N:
1467 for (i = 0; i < v.value_int_n.n; i++)
1468 params[i] = INT_TO_BOOLEAN(v.value_int_n.ints[i]);
1469 break;
1470
1471 case TYPE_INT64:
1472 params[0] = INT64_TO_BOOLEAN(((GLint64 *) p)[0]);
1473 break;
1474
1475 case TYPE_BOOLEAN:
1476 params[0] = ((GLboolean*) p)[0];
1477 break;
1478
1479 case TYPE_MATRIX:
1480 m = *(GLmatrix **) p;
1481 for (i = 0; i < 16; i++)
1482 params[i] = FLOAT_TO_BOOLEAN(m->m[i]);
1483 break;
1484
1485 case TYPE_MATRIX_T:
1486 m = *(GLmatrix **) p;
1487 for (i = 0; i < 16; i++)
1488 params[i] = FLOAT_TO_BOOLEAN(m->m[transpose[i]]);
1489 break;
1490
1491 case TYPE_BIT_0:
1492 case TYPE_BIT_1:
1493 case TYPE_BIT_2:
1494 case TYPE_BIT_3:
1495 case TYPE_BIT_4:
1496 case TYPE_BIT_5:
1497 case TYPE_BIT_6:
1498 case TYPE_BIT_7:
1499 shift = d->type - TYPE_BIT_0;
1500 params[0] = (*(GLbitfield *) p >> shift) & 1;
1501 break;
1502 }
1503 }
1504
1505 void GLAPIENTRY
1506 _mesa_GetFloatv(GLenum pname, GLfloat *params)
1507 {
1508 const struct value_desc *d;
1509 union value v;
1510 GLmatrix *m;
1511 int shift, i;
1512 void *p;
1513
1514 d = find_value("glGetFloatv", pname, &p, &v);
1515 switch (d->type) {
1516 case TYPE_INVALID:
1517 break;
1518 case TYPE_CONST:
1519 params[0] = (GLfloat) d->offset;
1520 break;
1521
1522 case TYPE_FLOAT_8:
1523 params[7] = ((GLfloat *) p)[7];
1524 params[6] = ((GLfloat *) p)[6];
1525 params[5] = ((GLfloat *) p)[5];
1526 params[4] = ((GLfloat *) p)[4];
1527 case TYPE_FLOAT_4:
1528 case TYPE_FLOATN_4:
1529 params[3] = ((GLfloat *) p)[3];
1530 case TYPE_FLOAT_3:
1531 case TYPE_FLOATN_3:
1532 params[2] = ((GLfloat *) p)[2];
1533 case TYPE_FLOAT_2:
1534 case TYPE_FLOATN_2:
1535 params[1] = ((GLfloat *) p)[1];
1536 case TYPE_FLOAT:
1537 case TYPE_FLOATN:
1538 params[0] = ((GLfloat *) p)[0];
1539 break;
1540
1541 case TYPE_DOUBLEN_2:
1542 params[1] = (GLfloat) (((GLdouble *) p)[1]);
1543 case TYPE_DOUBLEN:
1544 params[0] = (GLfloat) (((GLdouble *) p)[0]);
1545 break;
1546
1547 case TYPE_INT_4:
1548 params[3] = (GLfloat) (((GLint *) p)[3]);
1549 case TYPE_INT_3:
1550 params[2] = (GLfloat) (((GLint *) p)[2]);
1551 case TYPE_INT_2:
1552 case TYPE_ENUM_2:
1553 params[1] = (GLfloat) (((GLint *) p)[1]);
1554 case TYPE_INT:
1555 case TYPE_ENUM:
1556 params[0] = (GLfloat) (((GLint *) p)[0]);
1557 break;
1558
1559 case TYPE_INT_N:
1560 for (i = 0; i < v.value_int_n.n; i++)
1561 params[i] = INT_TO_FLOAT(v.value_int_n.ints[i]);
1562 break;
1563
1564 case TYPE_INT64:
1565 params[0] = (GLfloat) (((GLint64 *) p)[0]);
1566 break;
1567
1568 case TYPE_BOOLEAN:
1569 params[0] = BOOLEAN_TO_FLOAT(*(GLboolean*) p);
1570 break;
1571
1572 case TYPE_MATRIX:
1573 m = *(GLmatrix **) p;
1574 for (i = 0; i < 16; i++)
1575 params[i] = m->m[i];
1576 break;
1577
1578 case TYPE_MATRIX_T:
1579 m = *(GLmatrix **) p;
1580 for (i = 0; i < 16; i++)
1581 params[i] = m->m[transpose[i]];
1582 break;
1583
1584 case TYPE_BIT_0:
1585 case TYPE_BIT_1:
1586 case TYPE_BIT_2:
1587 case TYPE_BIT_3:
1588 case TYPE_BIT_4:
1589 case TYPE_BIT_5:
1590 case TYPE_BIT_6:
1591 case TYPE_BIT_7:
1592 shift = d->type - TYPE_BIT_0;
1593 params[0] = BOOLEAN_TO_FLOAT((*(GLbitfield *) p >> shift) & 1);
1594 break;
1595 }
1596 }
1597
1598 void GLAPIENTRY
1599 _mesa_GetIntegerv(GLenum pname, GLint *params)
1600 {
1601 const struct value_desc *d;
1602 union value v;
1603 GLmatrix *m;
1604 int shift, i;
1605 void *p;
1606
1607 d = find_value("glGetIntegerv", pname, &p, &v);
1608 switch (d->type) {
1609 case TYPE_INVALID:
1610 break;
1611 case TYPE_CONST:
1612 params[0] = d->offset;
1613 break;
1614
1615 case TYPE_FLOAT_8:
1616 params[7] = IROUND(((GLfloat *) p)[7]);
1617 params[6] = IROUND(((GLfloat *) p)[6]);
1618 params[5] = IROUND(((GLfloat *) p)[5]);
1619 params[4] = IROUND(((GLfloat *) p)[4]);
1620 case TYPE_FLOAT_4:
1621 params[3] = IROUND(((GLfloat *) p)[3]);
1622 case TYPE_FLOAT_3:
1623 params[2] = IROUND(((GLfloat *) p)[2]);
1624 case TYPE_FLOAT_2:
1625 params[1] = IROUND(((GLfloat *) p)[1]);
1626 case TYPE_FLOAT:
1627 params[0] = IROUND(((GLfloat *) p)[0]);
1628 break;
1629
1630 case TYPE_FLOATN_4:
1631 params[3] = FLOAT_TO_INT(((GLfloat *) p)[3]);
1632 case TYPE_FLOATN_3:
1633 params[2] = FLOAT_TO_INT(((GLfloat *) p)[2]);
1634 case TYPE_FLOATN_2:
1635 params[1] = FLOAT_TO_INT(((GLfloat *) p)[1]);
1636 case TYPE_FLOATN:
1637 params[0] = FLOAT_TO_INT(((GLfloat *) p)[0]);
1638 break;
1639
1640 case TYPE_DOUBLEN_2:
1641 params[1] = FLOAT_TO_INT(((GLdouble *) p)[1]);
1642 case TYPE_DOUBLEN:
1643 params[0] = FLOAT_TO_INT(((GLdouble *) p)[0]);
1644 break;
1645
1646 case TYPE_INT_4:
1647 params[3] = ((GLint *) p)[3];
1648 case TYPE_INT_3:
1649 params[2] = ((GLint *) p)[2];
1650 case TYPE_INT_2:
1651 case TYPE_ENUM_2:
1652 params[1] = ((GLint *) p)[1];
1653 case TYPE_INT:
1654 case TYPE_ENUM:
1655 params[0] = ((GLint *) p)[0];
1656 break;
1657
1658 case TYPE_INT_N:
1659 for (i = 0; i < v.value_int_n.n; i++)
1660 params[i] = v.value_int_n.ints[i];
1661 break;
1662
1663 case TYPE_INT64:
1664 params[0] = INT64_TO_INT(((GLint64 *) p)[0]);
1665 break;
1666
1667 case TYPE_BOOLEAN:
1668 params[0] = BOOLEAN_TO_INT(*(GLboolean*) p);
1669 break;
1670
1671 case TYPE_MATRIX:
1672 m = *(GLmatrix **) p;
1673 for (i = 0; i < 16; i++)
1674 params[i] = FLOAT_TO_INT(m->m[i]);
1675 break;
1676
1677 case TYPE_MATRIX_T:
1678 m = *(GLmatrix **) p;
1679 for (i = 0; i < 16; i++)
1680 params[i] = FLOAT_TO_INT(m->m[transpose[i]]);
1681 break;
1682
1683 case TYPE_BIT_0:
1684 case TYPE_BIT_1:
1685 case TYPE_BIT_2:
1686 case TYPE_BIT_3:
1687 case TYPE_BIT_4:
1688 case TYPE_BIT_5:
1689 case TYPE_BIT_6:
1690 case TYPE_BIT_7:
1691 shift = d->type - TYPE_BIT_0;
1692 params[0] = (*(GLbitfield *) p >> shift) & 1;
1693 break;
1694 }
1695 }
1696
1697 void GLAPIENTRY
1698 _mesa_GetInteger64v(GLenum pname, GLint64 *params)
1699 {
1700 const struct value_desc *d;
1701 union value v;
1702 GLmatrix *m;
1703 int shift, i;
1704 void *p;
1705
1706 d = find_value("glGetInteger64v", pname, &p, &v);
1707 switch (d->type) {
1708 case TYPE_INVALID:
1709 break;
1710 case TYPE_CONST:
1711 params[0] = d->offset;
1712 break;
1713
1714 case TYPE_FLOAT_8:
1715 params[7] = IROUND64(((GLfloat *) p)[7]);
1716 params[6] = IROUND64(((GLfloat *) p)[6]);
1717 params[5] = IROUND64(((GLfloat *) p)[5]);
1718 params[4] = IROUND64(((GLfloat *) p)[4]);
1719 case TYPE_FLOAT_4:
1720 params[3] = IROUND64(((GLfloat *) p)[3]);
1721 case TYPE_FLOAT_3:
1722 params[2] = IROUND64(((GLfloat *) p)[2]);
1723 case TYPE_FLOAT_2:
1724 params[1] = IROUND64(((GLfloat *) p)[1]);
1725 case TYPE_FLOAT:
1726 params[0] = IROUND64(((GLfloat *) p)[0]);
1727 break;
1728
1729 case TYPE_FLOATN_4:
1730 params[3] = FLOAT_TO_INT(((GLfloat *) p)[3]);
1731 case TYPE_FLOATN_3:
1732 params[2] = FLOAT_TO_INT(((GLfloat *) p)[2]);
1733 case TYPE_FLOATN_2:
1734 params[1] = FLOAT_TO_INT(((GLfloat *) p)[1]);
1735 case TYPE_FLOATN:
1736 params[0] = FLOAT_TO_INT(((GLfloat *) p)[0]);
1737 break;
1738
1739 case TYPE_DOUBLEN_2:
1740 params[1] = FLOAT_TO_INT(((GLdouble *) p)[1]);
1741 case TYPE_DOUBLEN:
1742 params[0] = FLOAT_TO_INT(((GLdouble *) p)[0]);
1743 break;
1744
1745 case TYPE_INT_4:
1746 params[3] = ((GLint *) p)[3];
1747 case TYPE_INT_3:
1748 params[2] = ((GLint *) p)[2];
1749 case TYPE_INT_2:
1750 case TYPE_ENUM_2:
1751 params[1] = ((GLint *) p)[1];
1752 case TYPE_INT:
1753 case TYPE_ENUM:
1754 params[0] = ((GLint *) p)[0];
1755 break;
1756
1757 case TYPE_INT_N:
1758 for (i = 0; i < v.value_int_n.n; i++)
1759 params[i] = INT_TO_BOOLEAN(v.value_int_n.ints[i]);
1760 break;
1761
1762 case TYPE_INT64:
1763 params[0] = ((GLint64 *) p)[0];
1764 break;
1765
1766 case TYPE_BOOLEAN:
1767 params[0] = ((GLboolean*) p)[0];
1768 break;
1769
1770 case TYPE_MATRIX:
1771 m = *(GLmatrix **) p;
1772 for (i = 0; i < 16; i++)
1773 params[i] = FLOAT_TO_INT64(m->m[i]);
1774 break;
1775
1776 case TYPE_MATRIX_T:
1777 m = *(GLmatrix **) p;
1778 for (i = 0; i < 16; i++)
1779 params[i] = FLOAT_TO_INT64(m->m[transpose[i]]);
1780 break;
1781
1782 case TYPE_BIT_0:
1783 case TYPE_BIT_1:
1784 case TYPE_BIT_2:
1785 case TYPE_BIT_3:
1786 case TYPE_BIT_4:
1787 case TYPE_BIT_5:
1788 case TYPE_BIT_6:
1789 case TYPE_BIT_7:
1790 shift = d->type - TYPE_BIT_0;
1791 params[0] = (*(GLbitfield *) p >> shift) & 1;
1792 break;
1793 }
1794 }
1795
1796 void GLAPIENTRY
1797 _mesa_GetDoublev(GLenum pname, GLdouble *params)
1798 {
1799 const struct value_desc *d;
1800 union value v;
1801 GLmatrix *m;
1802 int shift, i;
1803 void *p;
1804
1805 d = find_value("glGetDoublev", pname, &p, &v);
1806 switch (d->type) {
1807 case TYPE_INVALID:
1808 break;
1809 case TYPE_CONST:
1810 params[0] = d->offset;
1811 break;
1812
1813 case TYPE_FLOAT_8:
1814 params[7] = ((GLfloat *) p)[7];
1815 params[6] = ((GLfloat *) p)[6];
1816 params[5] = ((GLfloat *) p)[5];
1817 params[4] = ((GLfloat *) p)[4];
1818 case TYPE_FLOAT_4:
1819 case TYPE_FLOATN_4:
1820 params[3] = ((GLfloat *) p)[3];
1821 case TYPE_FLOAT_3:
1822 case TYPE_FLOATN_3:
1823 params[2] = ((GLfloat *) p)[2];
1824 case TYPE_FLOAT_2:
1825 case TYPE_FLOATN_2:
1826 params[1] = ((GLfloat *) p)[1];
1827 case TYPE_FLOAT:
1828 case TYPE_FLOATN:
1829 params[0] = ((GLfloat *) p)[0];
1830 break;
1831
1832 case TYPE_DOUBLEN_2:
1833 params[1] = ((GLdouble *) p)[1];
1834 case TYPE_DOUBLEN:
1835 params[0] = ((GLdouble *) p)[0];
1836 break;
1837
1838 case TYPE_INT_4:
1839 params[3] = ((GLint *) p)[3];
1840 case TYPE_INT_3:
1841 params[2] = ((GLint *) p)[2];
1842 case TYPE_INT_2:
1843 case TYPE_ENUM_2:
1844 params[1] = ((GLint *) p)[1];
1845 case TYPE_INT:
1846 case TYPE_ENUM:
1847 params[0] = ((GLint *) p)[0];
1848 break;
1849
1850 case TYPE_INT_N:
1851 for (i = 0; i < v.value_int_n.n; i++)
1852 params[i] = v.value_int_n.ints[i];
1853 break;
1854
1855 case TYPE_INT64:
1856 params[0] = (GLdouble) (((GLint64 *) p)[0]);
1857 break;
1858
1859 case TYPE_BOOLEAN:
1860 params[0] = *(GLboolean*) p;
1861 break;
1862
1863 case TYPE_MATRIX:
1864 m = *(GLmatrix **) p;
1865 for (i = 0; i < 16; i++)
1866 params[i] = m->m[i];
1867 break;
1868
1869 case TYPE_MATRIX_T:
1870 m = *(GLmatrix **) p;
1871 for (i = 0; i < 16; i++)
1872 params[i] = m->m[transpose[i]];
1873 break;
1874
1875 case TYPE_BIT_0:
1876 case TYPE_BIT_1:
1877 case TYPE_BIT_2:
1878 case TYPE_BIT_3:
1879 case TYPE_BIT_4:
1880 case TYPE_BIT_5:
1881 case TYPE_BIT_6:
1882 case TYPE_BIT_7:
1883 shift = d->type - TYPE_BIT_0;
1884 params[0] = (*(GLbitfield *) p >> shift) & 1;
1885 break;
1886 }
1887 }
1888
1889 /**
1890 * Convert a GL texture binding enum such as GL_TEXTURE_BINDING_2D
1891 * into the corresponding Mesa texture target index.
1892 * \return TEXTURE_x_INDEX or -1 if binding is invalid
1893 */
1894 static int
1895 tex_binding_to_index(const struct gl_context *ctx, GLenum binding)
1896 {
1897 switch (binding) {
1898 case GL_TEXTURE_BINDING_1D:
1899 return _mesa_is_desktop_gl(ctx) ? TEXTURE_1D_INDEX : -1;
1900 case GL_TEXTURE_BINDING_2D:
1901 return TEXTURE_2D_INDEX;
1902 case GL_TEXTURE_BINDING_3D:
1903 return ctx->API != API_OPENGLES ? TEXTURE_3D_INDEX : -1;
1904 case GL_TEXTURE_BINDING_CUBE_MAP:
1905 return ctx->Extensions.ARB_texture_cube_map
1906 ? TEXTURE_CUBE_INDEX : -1;
1907 case GL_TEXTURE_BINDING_RECTANGLE:
1908 return _mesa_is_desktop_gl(ctx) && ctx->Extensions.NV_texture_rectangle
1909 ? TEXTURE_RECT_INDEX : -1;
1910 case GL_TEXTURE_BINDING_1D_ARRAY:
1911 return _mesa_is_desktop_gl(ctx) && ctx->Extensions.EXT_texture_array
1912 ? TEXTURE_1D_ARRAY_INDEX : -1;
1913 case GL_TEXTURE_BINDING_2D_ARRAY:
1914 return (_mesa_is_desktop_gl(ctx) && ctx->Extensions.EXT_texture_array)
1915 || _mesa_is_gles3(ctx)
1916 ? TEXTURE_2D_ARRAY_INDEX : -1;
1917 case GL_TEXTURE_BINDING_BUFFER:
1918 return (_mesa_has_ARB_texture_buffer_object(ctx) ||
1919 _mesa_has_OES_texture_buffer(ctx)) ?
1920 TEXTURE_BUFFER_INDEX : -1;
1921 case GL_TEXTURE_BINDING_CUBE_MAP_ARRAY:
1922 return _mesa_has_texture_cube_map_array(ctx)
1923 ? TEXTURE_CUBE_ARRAY_INDEX : -1;
1924 case GL_TEXTURE_BINDING_2D_MULTISAMPLE:
1925 return _mesa_is_desktop_gl(ctx) && ctx->Extensions.ARB_texture_multisample
1926 ? TEXTURE_2D_MULTISAMPLE_INDEX : -1;
1927 case GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY:
1928 return _mesa_is_desktop_gl(ctx) && ctx->Extensions.ARB_texture_multisample
1929 ? TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX : -1;
1930 default:
1931 return -1;
1932 }
1933 }
1934
1935 static enum value_type
1936 find_value_indexed(const char *func, GLenum pname, GLuint index, union value *v)
1937 {
1938 GET_CURRENT_CONTEXT(ctx);
1939
1940 switch (pname) {
1941
1942 case GL_BLEND:
1943 if (index >= ctx->Const.MaxDrawBuffers)
1944 goto invalid_value;
1945 if (!ctx->Extensions.EXT_draw_buffers2)
1946 goto invalid_enum;
1947 v->value_int = (ctx->Color.BlendEnabled >> index) & 1;
1948 return TYPE_INT;
1949
1950 case GL_BLEND_SRC:
1951 /* fall-through */
1952 case GL_BLEND_SRC_RGB:
1953 if (index >= ctx->Const.MaxDrawBuffers)
1954 goto invalid_value;
1955 if (!ctx->Extensions.ARB_draw_buffers_blend)
1956 goto invalid_enum;
1957 v->value_int = ctx->Color.Blend[index].SrcRGB;
1958 return TYPE_INT;
1959 case GL_BLEND_SRC_ALPHA:
1960 if (index >= ctx->Const.MaxDrawBuffers)
1961 goto invalid_value;
1962 if (!ctx->Extensions.ARB_draw_buffers_blend)
1963 goto invalid_enum;
1964 v->value_int = ctx->Color.Blend[index].SrcA;
1965 return TYPE_INT;
1966 case GL_BLEND_DST:
1967 /* fall-through */
1968 case GL_BLEND_DST_RGB:
1969 if (index >= ctx->Const.MaxDrawBuffers)
1970 goto invalid_value;
1971 if (!ctx->Extensions.ARB_draw_buffers_blend)
1972 goto invalid_enum;
1973 v->value_int = ctx->Color.Blend[index].DstRGB;
1974 return TYPE_INT;
1975 case GL_BLEND_DST_ALPHA:
1976 if (index >= ctx->Const.MaxDrawBuffers)
1977 goto invalid_value;
1978 if (!ctx->Extensions.ARB_draw_buffers_blend)
1979 goto invalid_enum;
1980 v->value_int = ctx->Color.Blend[index].DstA;
1981 return TYPE_INT;
1982 case GL_BLEND_EQUATION_RGB:
1983 if (index >= ctx->Const.MaxDrawBuffers)
1984 goto invalid_value;
1985 if (!ctx->Extensions.ARB_draw_buffers_blend)
1986 goto invalid_enum;
1987 v->value_int = ctx->Color.Blend[index].EquationRGB;
1988 return TYPE_INT;
1989 case GL_BLEND_EQUATION_ALPHA:
1990 if (index >= ctx->Const.MaxDrawBuffers)
1991 goto invalid_value;
1992 if (!ctx->Extensions.ARB_draw_buffers_blend)
1993 goto invalid_enum;
1994 v->value_int = ctx->Color.Blend[index].EquationA;
1995 return TYPE_INT;
1996
1997 case GL_COLOR_WRITEMASK:
1998 if (index >= ctx->Const.MaxDrawBuffers)
1999 goto invalid_value;
2000 if (!ctx->Extensions.EXT_draw_buffers2)
2001 goto invalid_enum;
2002 v->value_int_4[0] = ctx->Color.ColorMask[index][RCOMP] ? 1 : 0;
2003 v->value_int_4[1] = ctx->Color.ColorMask[index][GCOMP] ? 1 : 0;
2004 v->value_int_4[2] = ctx->Color.ColorMask[index][BCOMP] ? 1 : 0;
2005 v->value_int_4[3] = ctx->Color.ColorMask[index][ACOMP] ? 1 : 0;
2006 return TYPE_INT_4;
2007
2008 case GL_SCISSOR_BOX:
2009 if (index >= ctx->Const.MaxViewports)
2010 goto invalid_value;
2011 v->value_int_4[0] = ctx->Scissor.ScissorArray[index].X;
2012 v->value_int_4[1] = ctx->Scissor.ScissorArray[index].Y;
2013 v->value_int_4[2] = ctx->Scissor.ScissorArray[index].Width;
2014 v->value_int_4[3] = ctx->Scissor.ScissorArray[index].Height;
2015 return TYPE_INT_4;
2016
2017 case GL_WINDOW_RECTANGLE_EXT:
2018 if (!ctx->Extensions.EXT_window_rectangles)
2019 goto invalid_enum;
2020 if (index >= ctx->Const.MaxWindowRectangles)
2021 goto invalid_value;
2022 v->value_int_4[0] = ctx->Scissor.WindowRects[index].X;
2023 v->value_int_4[1] = ctx->Scissor.WindowRects[index].Y;
2024 v->value_int_4[2] = ctx->Scissor.WindowRects[index].Width;
2025 v->value_int_4[3] = ctx->Scissor.WindowRects[index].Height;
2026 return TYPE_INT_4;
2027
2028 case GL_VIEWPORT:
2029 if (index >= ctx->Const.MaxViewports)
2030 goto invalid_value;
2031 v->value_float_4[0] = ctx->ViewportArray[index].X;
2032 v->value_float_4[1] = ctx->ViewportArray[index].Y;
2033 v->value_float_4[2] = ctx->ViewportArray[index].Width;
2034 v->value_float_4[3] = ctx->ViewportArray[index].Height;
2035 return TYPE_FLOAT_4;
2036
2037 case GL_DEPTH_RANGE:
2038 if (index >= ctx->Const.MaxViewports)
2039 goto invalid_value;
2040 v->value_double_2[0] = ctx->ViewportArray[index].Near;
2041 v->value_double_2[1] = ctx->ViewportArray[index].Far;
2042 return TYPE_DOUBLEN_2;
2043
2044 case GL_TRANSFORM_FEEDBACK_BUFFER_START:
2045 if (index >= ctx->Const.MaxTransformFeedbackBuffers)
2046 goto invalid_value;
2047 if (!ctx->Extensions.EXT_transform_feedback)
2048 goto invalid_enum;
2049 v->value_int64 = ctx->TransformFeedback.CurrentObject->Offset[index];
2050 return TYPE_INT64;
2051
2052 case GL_TRANSFORM_FEEDBACK_BUFFER_SIZE:
2053 if (index >= ctx->Const.MaxTransformFeedbackBuffers)
2054 goto invalid_value;
2055 if (!ctx->Extensions.EXT_transform_feedback)
2056 goto invalid_enum;
2057 v->value_int64
2058 = ctx->TransformFeedback.CurrentObject->RequestedSize[index];
2059 return TYPE_INT64;
2060
2061 case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING:
2062 if (index >= ctx->Const.MaxTransformFeedbackBuffers)
2063 goto invalid_value;
2064 if (!ctx->Extensions.EXT_transform_feedback)
2065 goto invalid_enum;
2066 v->value_int = ctx->TransformFeedback.CurrentObject->BufferNames[index];
2067 return TYPE_INT;
2068
2069 case GL_UNIFORM_BUFFER_BINDING:
2070 if (index >= ctx->Const.MaxUniformBufferBindings)
2071 goto invalid_value;
2072 if (!ctx->Extensions.ARB_uniform_buffer_object)
2073 goto invalid_enum;
2074 v->value_int = ctx->UniformBufferBindings[index].BufferObject->Name;
2075 return TYPE_INT;
2076
2077 case GL_UNIFORM_BUFFER_START:
2078 if (index >= ctx->Const.MaxUniformBufferBindings)
2079 goto invalid_value;
2080 if (!ctx->Extensions.ARB_uniform_buffer_object)
2081 goto invalid_enum;
2082 v->value_int = ctx->UniformBufferBindings[index].Offset < 0 ? 0 :
2083 ctx->UniformBufferBindings[index].Offset;
2084 return TYPE_INT;
2085
2086 case GL_UNIFORM_BUFFER_SIZE:
2087 if (index >= ctx->Const.MaxUniformBufferBindings)
2088 goto invalid_value;
2089 if (!ctx->Extensions.ARB_uniform_buffer_object)
2090 goto invalid_enum;
2091 v->value_int = ctx->UniformBufferBindings[index].Size < 0 ? 0 :
2092 ctx->UniformBufferBindings[index].Size;
2093 return TYPE_INT;
2094
2095 /* ARB_shader_storage_buffer_object */
2096 case GL_SHADER_STORAGE_BUFFER_BINDING:
2097 if (!ctx->Extensions.ARB_shader_storage_buffer_object)
2098 goto invalid_enum;
2099 if (index >= ctx->Const.MaxShaderStorageBufferBindings)
2100 goto invalid_value;
2101 v->value_int = ctx->ShaderStorageBufferBindings[index].BufferObject->Name;
2102 return TYPE_INT;
2103
2104 case GL_SHADER_STORAGE_BUFFER_START:
2105 if (!ctx->Extensions.ARB_shader_storage_buffer_object)
2106 goto invalid_enum;
2107 if (index >= ctx->Const.MaxShaderStorageBufferBindings)
2108 goto invalid_value;
2109 v->value_int = ctx->ShaderStorageBufferBindings[index].Offset < 0 ? 0 :
2110 ctx->ShaderStorageBufferBindings[index].Offset;
2111 return TYPE_INT;
2112
2113 case GL_SHADER_STORAGE_BUFFER_SIZE:
2114 if (!ctx->Extensions.ARB_shader_storage_buffer_object)
2115 goto invalid_enum;
2116 if (index >= ctx->Const.MaxShaderStorageBufferBindings)
2117 goto invalid_value;
2118 v->value_int = ctx->ShaderStorageBufferBindings[index].Size < 0 ? 0 :
2119 ctx->ShaderStorageBufferBindings[index].Size;
2120 return TYPE_INT;
2121
2122 /* ARB_texture_multisample / GL3.2 */
2123 case GL_SAMPLE_MASK_VALUE:
2124 if (index != 0)
2125 goto invalid_value;
2126 if (!ctx->Extensions.ARB_texture_multisample)
2127 goto invalid_enum;
2128 v->value_int = ctx->Multisample.SampleMaskValue;
2129 return TYPE_INT;
2130
2131 case GL_ATOMIC_COUNTER_BUFFER_BINDING:
2132 if (!ctx->Extensions.ARB_shader_atomic_counters)
2133 goto invalid_enum;
2134 if (index >= ctx->Const.MaxAtomicBufferBindings)
2135 goto invalid_value;
2136 v->value_int = ctx->AtomicBufferBindings[index].BufferObject->Name;
2137 return TYPE_INT;
2138
2139 case GL_ATOMIC_COUNTER_BUFFER_START:
2140 if (!ctx->Extensions.ARB_shader_atomic_counters)
2141 goto invalid_enum;
2142 if (index >= ctx->Const.MaxAtomicBufferBindings)
2143 goto invalid_value;
2144 v->value_int64 = ctx->AtomicBufferBindings[index].Offset;
2145 return TYPE_INT64;
2146
2147 case GL_ATOMIC_COUNTER_BUFFER_SIZE:
2148 if (!ctx->Extensions.ARB_shader_atomic_counters)
2149 goto invalid_enum;
2150 if (index >= ctx->Const.MaxAtomicBufferBindings)
2151 goto invalid_value;
2152 v->value_int64 = ctx->AtomicBufferBindings[index].Size;
2153 return TYPE_INT64;
2154
2155 case GL_VERTEX_BINDING_DIVISOR:
2156 if ((!_mesa_is_desktop_gl(ctx) || !ctx->Extensions.ARB_instanced_arrays) &&
2157 !_mesa_is_gles31(ctx))
2158 goto invalid_enum;
2159 if (index >= ctx->Const.Program[MESA_SHADER_VERTEX].MaxAttribs)
2160 goto invalid_value;
2161 v->value_int = ctx->Array.VAO->VertexBinding[VERT_ATTRIB_GENERIC(index)].InstanceDivisor;
2162 return TYPE_INT;
2163
2164 case GL_VERTEX_BINDING_OFFSET:
2165 if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles31(ctx))
2166 goto invalid_enum;
2167 if (index >= ctx->Const.Program[MESA_SHADER_VERTEX].MaxAttribs)
2168 goto invalid_value;
2169 v->value_int = ctx->Array.VAO->VertexBinding[VERT_ATTRIB_GENERIC(index)].Offset;
2170 return TYPE_INT;
2171
2172 case GL_VERTEX_BINDING_STRIDE:
2173 if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles31(ctx))
2174 goto invalid_enum;
2175 if (index >= ctx->Const.Program[MESA_SHADER_VERTEX].MaxAttribs)
2176 goto invalid_value;
2177 v->value_int = ctx->Array.VAO->VertexBinding[VERT_ATTRIB_GENERIC(index)].Stride;
2178 return TYPE_INT;
2179
2180 case GL_VERTEX_BINDING_BUFFER:
2181 if (ctx->API == API_OPENGLES2 && ctx->Version < 31)
2182 goto invalid_enum;
2183 if (index >= ctx->Const.Program[MESA_SHADER_VERTEX].MaxAttribs)
2184 goto invalid_value;
2185 v->value_int = ctx->Array.VAO->VertexBinding[VERT_ATTRIB_GENERIC(index)].BufferObj->Name;
2186 return TYPE_INT;
2187
2188 /* ARB_shader_image_load_store */
2189 case GL_IMAGE_BINDING_NAME: {
2190 struct gl_texture_object *t;
2191
2192 if (!ctx->Extensions.ARB_shader_image_load_store)
2193 goto invalid_enum;
2194 if (index >= ctx->Const.MaxImageUnits)
2195 goto invalid_value;
2196
2197 t = ctx->ImageUnits[index].TexObj;
2198 v->value_int = (t ? t->Name : 0);
2199 return TYPE_INT;
2200 }
2201
2202 case GL_IMAGE_BINDING_LEVEL:
2203 if (!ctx->Extensions.ARB_shader_image_load_store)
2204 goto invalid_enum;
2205 if (index >= ctx->Const.MaxImageUnits)
2206 goto invalid_value;
2207
2208 v->value_int = ctx->ImageUnits[index].Level;
2209 return TYPE_INT;
2210
2211 case GL_IMAGE_BINDING_LAYERED:
2212 if (!ctx->Extensions.ARB_shader_image_load_store)
2213 goto invalid_enum;
2214 if (index >= ctx->Const.MaxImageUnits)
2215 goto invalid_value;
2216
2217 v->value_int = ctx->ImageUnits[index].Layered;
2218 return TYPE_INT;
2219
2220 case GL_IMAGE_BINDING_LAYER:
2221 if (!ctx->Extensions.ARB_shader_image_load_store)
2222 goto invalid_enum;
2223 if (index >= ctx->Const.MaxImageUnits)
2224 goto invalid_value;
2225
2226 v->value_int = ctx->ImageUnits[index].Layer;
2227 return TYPE_INT;
2228
2229 case GL_IMAGE_BINDING_ACCESS:
2230 if (!ctx->Extensions.ARB_shader_image_load_store)
2231 goto invalid_enum;
2232 if (index >= ctx->Const.MaxImageUnits)
2233 goto invalid_value;
2234
2235 v->value_int = ctx->ImageUnits[index].Access;
2236 return TYPE_INT;
2237
2238 case GL_IMAGE_BINDING_FORMAT:
2239 if (!ctx->Extensions.ARB_shader_image_load_store)
2240 goto invalid_enum;
2241 if (index >= ctx->Const.MaxImageUnits)
2242 goto invalid_value;
2243
2244 v->value_int = ctx->ImageUnits[index].Format;
2245 return TYPE_INT;
2246
2247 /* ARB_direct_state_access */
2248 case GL_TEXTURE_BINDING_1D:
2249 case GL_TEXTURE_BINDING_1D_ARRAY:
2250 case GL_TEXTURE_BINDING_2D:
2251 case GL_TEXTURE_BINDING_2D_ARRAY:
2252 case GL_TEXTURE_BINDING_2D_MULTISAMPLE:
2253 case GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY:
2254 case GL_TEXTURE_BINDING_3D:
2255 case GL_TEXTURE_BINDING_BUFFER:
2256 case GL_TEXTURE_BINDING_CUBE_MAP:
2257 case GL_TEXTURE_BINDING_CUBE_MAP_ARRAY:
2258 case GL_TEXTURE_BINDING_RECTANGLE: {
2259 int target;
2260
2261 if (ctx->API != API_OPENGL_CORE)
2262 goto invalid_enum;
2263 target = tex_binding_to_index(ctx, pname);
2264 if (target < 0)
2265 goto invalid_enum;
2266 if (index >= _mesa_max_tex_unit(ctx))
2267 goto invalid_value;
2268
2269 v->value_int = ctx->Texture.Unit[index].CurrentTex[target]->Name;
2270 return TYPE_INT;
2271 }
2272
2273 case GL_SAMPLER_BINDING: {
2274 struct gl_sampler_object *samp;
2275
2276 if (ctx->API != API_OPENGL_CORE)
2277 goto invalid_enum;
2278 if (index >= _mesa_max_tex_unit(ctx))
2279 goto invalid_value;
2280
2281 samp = ctx->Texture.Unit[index].Sampler;
2282 v->value_int = samp ? samp->Name : 0;
2283 return TYPE_INT;
2284 }
2285
2286 case GL_MAX_COMPUTE_WORK_GROUP_COUNT:
2287 if (!_mesa_has_compute_shaders(ctx))
2288 goto invalid_enum;
2289 if (index >= 3)
2290 goto invalid_value;
2291 v->value_int = ctx->Const.MaxComputeWorkGroupCount[index];
2292 return TYPE_INT;
2293
2294 case GL_MAX_COMPUTE_WORK_GROUP_SIZE:
2295 if (!_mesa_has_compute_shaders(ctx))
2296 goto invalid_enum;
2297 if (index >= 3)
2298 goto invalid_value;
2299 v->value_int = ctx->Const.MaxComputeWorkGroupSize[index];
2300 return TYPE_INT;
2301
2302 /* ARB_compute_variable_group_size */
2303 case GL_MAX_COMPUTE_VARIABLE_GROUP_SIZE_ARB:
2304 if (!ctx->Extensions.ARB_compute_variable_group_size)
2305 goto invalid_enum;
2306 if (index >= 3)
2307 goto invalid_value;
2308 v->value_int = ctx->Const.MaxComputeVariableGroupSize[index];
2309 return TYPE_INT;
2310 }
2311
2312 invalid_enum:
2313 _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func,
2314 _mesa_enum_to_string(pname));
2315 return TYPE_INVALID;
2316 invalid_value:
2317 _mesa_error(ctx, GL_INVALID_VALUE, "%s(pname=%s)", func,
2318 _mesa_enum_to_string(pname));
2319 return TYPE_INVALID;
2320 }
2321
2322 void GLAPIENTRY
2323 _mesa_GetBooleani_v( GLenum pname, GLuint index, GLboolean *params )
2324 {
2325 union value v;
2326 enum value_type type =
2327 find_value_indexed("glGetBooleani_v", pname, index, &v);
2328
2329 switch (type) {
2330 case TYPE_INT:
2331 params[0] = INT_TO_BOOLEAN(v.value_int);
2332 break;
2333 case TYPE_INT_4:
2334 params[0] = INT_TO_BOOLEAN(v.value_int_4[0]);
2335 params[1] = INT_TO_BOOLEAN(v.value_int_4[1]);
2336 params[2] = INT_TO_BOOLEAN(v.value_int_4[2]);
2337 params[3] = INT_TO_BOOLEAN(v.value_int_4[3]);
2338 break;
2339 case TYPE_INT64:
2340 params[0] = INT64_TO_BOOLEAN(v.value_int64);
2341 break;
2342 default:
2343 ; /* nothing - GL error was recorded */
2344 }
2345 }
2346
2347 void GLAPIENTRY
2348 _mesa_GetIntegeri_v( GLenum pname, GLuint index, GLint *params )
2349 {
2350 union value v;
2351 enum value_type type =
2352 find_value_indexed("glGetIntegeri_v", pname, index, &v);
2353
2354 switch (type) {
2355 case TYPE_FLOAT_4:
2356 case TYPE_FLOATN_4:
2357 params[3] = IROUND(v.value_float_4[3]);
2358 case TYPE_FLOAT_3:
2359 case TYPE_FLOATN_3:
2360 params[2] = IROUND(v.value_float_4[2]);
2361 case TYPE_FLOAT_2:
2362 case TYPE_FLOATN_2:
2363 params[1] = IROUND(v.value_float_4[1]);
2364 case TYPE_FLOAT:
2365 case TYPE_FLOATN:
2366 params[0] = IROUND(v.value_float_4[0]);
2367 break;
2368
2369 case TYPE_DOUBLEN_2:
2370 params[1] = IROUND(v.value_double_2[1]);
2371 case TYPE_DOUBLEN:
2372 params[0] = IROUND(v.value_double_2[0]);
2373 break;
2374
2375 case TYPE_INT:
2376 params[0] = v.value_int;
2377 break;
2378 case TYPE_INT_4:
2379 params[0] = v.value_int_4[0];
2380 params[1] = v.value_int_4[1];
2381 params[2] = v.value_int_4[2];
2382 params[3] = v.value_int_4[3];
2383 break;
2384 case TYPE_INT64:
2385 params[0] = INT64_TO_INT(v.value_int64);
2386 break;
2387 default:
2388 ; /* nothing - GL error was recorded */
2389 }
2390 }
2391
2392 void GLAPIENTRY
2393 _mesa_GetInteger64i_v( GLenum pname, GLuint index, GLint64 *params )
2394 {
2395 union value v;
2396 enum value_type type =
2397 find_value_indexed("glGetInteger64i_v", pname, index, &v);
2398
2399 switch (type) {
2400 case TYPE_INT:
2401 params[0] = v.value_int;
2402 break;
2403 case TYPE_INT_4:
2404 params[0] = v.value_int_4[0];
2405 params[1] = v.value_int_4[1];
2406 params[2] = v.value_int_4[2];
2407 params[3] = v.value_int_4[3];
2408 break;
2409 case TYPE_INT64:
2410 params[0] = v.value_int64;
2411 break;
2412 default:
2413 ; /* nothing - GL error was recorded */
2414 }
2415 }
2416
2417 void GLAPIENTRY
2418 _mesa_GetFloati_v(GLenum pname, GLuint index, GLfloat *params)
2419 {
2420 int i;
2421 GLmatrix *m;
2422 union value v;
2423 enum value_type type =
2424 find_value_indexed("glGetFloati_v", pname, index, &v);
2425
2426 switch (type) {
2427 case TYPE_FLOAT_4:
2428 case TYPE_FLOATN_4:
2429 params[3] = v.value_float_4[3];
2430 case TYPE_FLOAT_3:
2431 case TYPE_FLOATN_3:
2432 params[2] = v.value_float_4[2];
2433 case TYPE_FLOAT_2:
2434 case TYPE_FLOATN_2:
2435 params[1] = v.value_float_4[1];
2436 case TYPE_FLOAT:
2437 case TYPE_FLOATN:
2438 params[0] = v.value_float_4[0];
2439 break;
2440
2441 case TYPE_DOUBLEN_2:
2442 params[1] = (GLfloat) v.value_double_2[1];
2443 case TYPE_DOUBLEN:
2444 params[0] = (GLfloat) v.value_double_2[0];
2445 break;
2446
2447 case TYPE_INT_4:
2448 params[3] = (GLfloat) v.value_int_4[3];
2449 case TYPE_INT_3:
2450 params[2] = (GLfloat) v.value_int_4[2];
2451 case TYPE_INT_2:
2452 case TYPE_ENUM_2:
2453 params[1] = (GLfloat) v.value_int_4[1];
2454 case TYPE_INT:
2455 case TYPE_ENUM:
2456 params[0] = (GLfloat) v.value_int_4[0];
2457 break;
2458
2459 case TYPE_INT_N:
2460 for (i = 0; i < v.value_int_n.n; i++)
2461 params[i] = INT_TO_FLOAT(v.value_int_n.ints[i]);
2462 break;
2463
2464 case TYPE_INT64:
2465 params[0] = (GLfloat) v.value_int64;
2466 break;
2467
2468 case TYPE_BOOLEAN:
2469 params[0] = BOOLEAN_TO_FLOAT(v.value_bool);
2470 break;
2471
2472 case TYPE_MATRIX:
2473 m = *(GLmatrix **) &v;
2474 for (i = 0; i < 16; i++)
2475 params[i] = m->m[i];
2476 break;
2477
2478 case TYPE_MATRIX_T:
2479 m = *(GLmatrix **) &v;
2480 for (i = 0; i < 16; i++)
2481 params[i] = m->m[transpose[i]];
2482 break;
2483
2484 default:
2485 ;
2486 }
2487 }
2488
2489 void GLAPIENTRY
2490 _mesa_GetDoublei_v(GLenum pname, GLuint index, GLdouble *params)
2491 {
2492 int i;
2493 GLmatrix *m;
2494 union value v;
2495 enum value_type type =
2496 find_value_indexed("glGetDoublei_v", pname, index, &v);
2497
2498 switch (type) {
2499 case TYPE_FLOAT_4:
2500 case TYPE_FLOATN_4:
2501 params[3] = (GLdouble) v.value_float_4[3];
2502 case TYPE_FLOAT_3:
2503 case TYPE_FLOATN_3:
2504 params[2] = (GLdouble) v.value_float_4[2];
2505 case TYPE_FLOAT_2:
2506 case TYPE_FLOATN_2:
2507 params[1] = (GLdouble) v.value_float_4[1];
2508 case TYPE_FLOAT:
2509 case TYPE_FLOATN:
2510 params[0] = (GLdouble) v.value_float_4[0];
2511 break;
2512
2513 case TYPE_DOUBLEN_2:
2514 params[1] = v.value_double_2[1];
2515 case TYPE_DOUBLEN:
2516 params[0] = v.value_double_2[0];
2517 break;
2518
2519 case TYPE_INT_4:
2520 params[3] = (GLdouble) v.value_int_4[3];
2521 case TYPE_INT_3:
2522 params[2] = (GLdouble) v.value_int_4[2];
2523 case TYPE_INT_2:
2524 case TYPE_ENUM_2:
2525 params[1] = (GLdouble) v.value_int_4[1];
2526 case TYPE_INT:
2527 case TYPE_ENUM:
2528 params[0] = (GLdouble) v.value_int_4[0];
2529 break;
2530
2531 case TYPE_INT_N:
2532 for (i = 0; i < v.value_int_n.n; i++)
2533 params[i] = (GLdouble) INT_TO_FLOAT(v.value_int_n.ints[i]);
2534 break;
2535
2536 case TYPE_INT64:
2537 params[0] = (GLdouble) v.value_int64;
2538 break;
2539
2540 case TYPE_BOOLEAN:
2541 params[0] = (GLdouble) BOOLEAN_TO_FLOAT(v.value_bool);
2542 break;
2543
2544 case TYPE_MATRIX:
2545 m = *(GLmatrix **) &v;
2546 for (i = 0; i < 16; i++)
2547 params[i] = (GLdouble) m->m[i];
2548 break;
2549
2550 case TYPE_MATRIX_T:
2551 m = *(GLmatrix **) &v;
2552 for (i = 0; i < 16; i++)
2553 params[i] = (GLdouble) m->m[transpose[i]];
2554 break;
2555
2556 default:
2557 ;
2558 }
2559 }
2560
2561 void GLAPIENTRY
2562 _mesa_GetFixedv(GLenum pname, GLfixed *params)
2563 {
2564 const struct value_desc *d;
2565 union value v;
2566 GLmatrix *m;
2567 int shift, i;
2568 void *p;
2569
2570 d = find_value("glGetDoublev", pname, &p, &v);
2571 switch (d->type) {
2572 case TYPE_INVALID:
2573 break;
2574 case TYPE_CONST:
2575 params[0] = INT_TO_FIXED(d->offset);
2576 break;
2577
2578 case TYPE_FLOAT_4:
2579 case TYPE_FLOATN_4:
2580 params[3] = FLOAT_TO_FIXED(((GLfloat *) p)[3]);
2581 case TYPE_FLOAT_3:
2582 case TYPE_FLOATN_3:
2583 params[2] = FLOAT_TO_FIXED(((GLfloat *) p)[2]);
2584 case TYPE_FLOAT_2:
2585 case TYPE_FLOATN_2:
2586 params[1] = FLOAT_TO_FIXED(((GLfloat *) p)[1]);
2587 case TYPE_FLOAT:
2588 case TYPE_FLOATN:
2589 params[0] = FLOAT_TO_FIXED(((GLfloat *) p)[0]);
2590 break;
2591
2592 case TYPE_DOUBLEN_2:
2593 params[1] = FLOAT_TO_FIXED(((GLdouble *) p)[1]);
2594 case TYPE_DOUBLEN:
2595 params[0] = FLOAT_TO_FIXED(((GLdouble *) p)[0]);
2596 break;
2597
2598 case TYPE_INT_4:
2599 params[3] = INT_TO_FIXED(((GLint *) p)[3]);
2600 case TYPE_INT_3:
2601 params[2] = INT_TO_FIXED(((GLint *) p)[2]);
2602 case TYPE_INT_2:
2603 case TYPE_ENUM_2:
2604 params[1] = INT_TO_FIXED(((GLint *) p)[1]);
2605 case TYPE_INT:
2606 case TYPE_ENUM:
2607 params[0] = INT_TO_FIXED(((GLint *) p)[0]);
2608 break;
2609
2610 case TYPE_INT_N:
2611 for (i = 0; i < v.value_int_n.n; i++)
2612 params[i] = INT_TO_FIXED(v.value_int_n.ints[i]);
2613 break;
2614
2615 case TYPE_INT64:
2616 params[0] = ((GLint64 *) p)[0];
2617 break;
2618
2619 case TYPE_BOOLEAN:
2620 params[0] = BOOLEAN_TO_FIXED(((GLboolean*) p)[0]);
2621 break;
2622
2623 case TYPE_MATRIX:
2624 m = *(GLmatrix **) p;
2625 for (i = 0; i < 16; i++)
2626 params[i] = FLOAT_TO_FIXED(m->m[i]);
2627 break;
2628
2629 case TYPE_MATRIX_T:
2630 m = *(GLmatrix **) p;
2631 for (i = 0; i < 16; i++)
2632 params[i] = FLOAT_TO_FIXED(m->m[transpose[i]]);
2633 break;
2634
2635 case TYPE_BIT_0:
2636 case TYPE_BIT_1:
2637 case TYPE_BIT_2:
2638 case TYPE_BIT_3:
2639 case TYPE_BIT_4:
2640 case TYPE_BIT_5:
2641 case TYPE_BIT_6:
2642 case TYPE_BIT_7:
2643 shift = d->type - TYPE_BIT_0;
2644 params[0] = BOOLEAN_TO_FIXED((*(GLbitfield *) p >> shift) & 1);
2645 break;
2646 }
2647 }