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mesa: Expose RESET_NOTIFICATION_STRATEGY with KHR_robustness.
[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_gpu_shader5_or_oes_geometry_shader[] = {
409 EXT(ARB_gpu_shader5),
410 EXTRA_EXT_ES_GS,
411 EXTRA_END
412 };
413
414 static const int extra_ARB_gpu_shader5_or_OES_sample_variables[] = {
415 EXT(ARB_gpu_shader5),
416 EXT(OES_sample_variables),
417 EXTRA_END
418 };
419
420 static const int extra_ES32[] = {
421 EXT(ARB_ES3_2_compatibility),
422 EXTRA_API_ES32,
423 EXTRA_END
424 };
425
426 static const int extra_KHR_robustness_or_GL[] = {
427 EXT(KHR_robustness),
428 EXTRA_API_GL,
429 EXTRA_API_GL_CORE,
430 EXTRA_END
431 };
432
433 EXTRA_EXT(ARB_texture_cube_map);
434 EXTRA_EXT(EXT_texture_array);
435 EXTRA_EXT(NV_fog_distance);
436 EXTRA_EXT(EXT_texture_filter_anisotropic);
437 EXTRA_EXT(NV_point_sprite);
438 EXTRA_EXT(NV_texture_rectangle);
439 EXTRA_EXT(EXT_stencil_two_side);
440 EXTRA_EXT(EXT_depth_bounds_test);
441 EXTRA_EXT(ARB_depth_clamp);
442 EXTRA_EXT(ATI_fragment_shader);
443 EXTRA_EXT(EXT_provoking_vertex);
444 EXTRA_EXT(ARB_fragment_shader);
445 EXTRA_EXT(ARB_fragment_program);
446 EXTRA_EXT2(ARB_framebuffer_object, EXT_framebuffer_multisample);
447 EXTRA_EXT(ARB_seamless_cube_map);
448 EXTRA_EXT(ARB_sync);
449 EXTRA_EXT(ARB_vertex_shader);
450 EXTRA_EXT(EXT_transform_feedback);
451 EXTRA_EXT(ARB_transform_feedback3);
452 EXTRA_EXT(EXT_pixel_buffer_object);
453 EXTRA_EXT(ARB_vertex_program);
454 EXTRA_EXT2(NV_point_sprite, ARB_point_sprite);
455 EXTRA_EXT2(ARB_vertex_program, ARB_fragment_program);
456 EXTRA_EXT(ARB_color_buffer_float);
457 EXTRA_EXT(EXT_framebuffer_sRGB);
458 EXTRA_EXT(OES_EGL_image_external);
459 EXTRA_EXT(ARB_blend_func_extended);
460 EXTRA_EXT(ARB_uniform_buffer_object);
461 EXTRA_EXT(ARB_timer_query);
462 EXTRA_EXT2(ARB_texture_cube_map_array, OES_texture_cube_map_array);
463 EXTRA_EXT(ARB_texture_buffer_range);
464 EXTRA_EXT(ARB_texture_multisample);
465 EXTRA_EXT(ARB_texture_gather);
466 EXTRA_EXT(ARB_shader_atomic_counters);
467 EXTRA_EXT(ARB_draw_indirect);
468 EXTRA_EXT(ARB_shader_image_load_store);
469 EXTRA_EXT(ARB_viewport_array);
470 EXTRA_EXT(ARB_query_buffer_object);
471 EXTRA_EXT2(ARB_transform_feedback3, ARB_gpu_shader5);
472 EXTRA_EXT(INTEL_performance_query);
473 EXTRA_EXT(ARB_explicit_uniform_location);
474 EXTRA_EXT(ARB_clip_control);
475 EXTRA_EXT(EXT_polygon_offset_clamp);
476 EXTRA_EXT(ARB_framebuffer_no_attachments);
477 EXTRA_EXT(ARB_tessellation_shader);
478 EXTRA_EXT(ARB_shader_subroutine);
479 EXTRA_EXT(ARB_shader_storage_buffer_object);
480 EXTRA_EXT(ARB_indirect_parameters);
481 EXTRA_EXT(ATI_meminfo);
482 EXTRA_EXT(NVX_gpu_memory_info);
483 EXTRA_EXT(ARB_cull_distance);
484 EXTRA_EXT(EXT_window_rectangles);
485 EXTRA_EXT(KHR_blend_equation_advanced_coherent);
486 EXTRA_EXT(OES_primitive_bounding_box);
487
488 static const int
489 extra_ARB_color_buffer_float_or_glcore[] = {
490 EXT(ARB_color_buffer_float),
491 EXTRA_API_GL_CORE,
492 EXTRA_END
493 };
494
495 static const int
496 extra_NV_primitive_restart[] = {
497 EXT(NV_primitive_restart),
498 EXTRA_END
499 };
500
501 static const int extra_version_30[] = { EXTRA_VERSION_30, EXTRA_END };
502 static const int extra_version_31[] = { EXTRA_VERSION_31, EXTRA_END };
503 static const int extra_version_32[] = { EXTRA_VERSION_32, EXTRA_END };
504
505 static const int extra_gl30_es3[] = {
506 EXTRA_VERSION_30,
507 EXTRA_API_ES3,
508 EXTRA_END,
509 };
510
511 static const int extra_gl32_es3[] = {
512 EXTRA_VERSION_32,
513 EXTRA_API_ES3,
514 EXTRA_END,
515 };
516
517 static const int extra_version_32_OES_geometry_shader[] = {
518 EXTRA_VERSION_32,
519 EXTRA_EXT_ES_GS,
520 EXTRA_END
521 };
522
523 static const int extra_gl40_ARB_sample_shading[] = {
524 EXTRA_VERSION_40,
525 EXT(ARB_sample_shading),
526 EXTRA_END
527 };
528
529 static const int
530 extra_ARB_vertex_program_api_es2[] = {
531 EXT(ARB_vertex_program),
532 EXTRA_API_ES2,
533 EXTRA_END
534 };
535
536 /* The ReadBuffer get token is valid under either full GL or under
537 * GLES2 if the NV_read_buffer extension is available. */
538 static const int
539 extra_NV_read_buffer_api_gl[] = {
540 EXTRA_API_ES2,
541 EXTRA_API_GL,
542 EXTRA_END
543 };
544
545 static const int extra_core_ARB_color_buffer_float_and_new_buffers[] = {
546 EXTRA_API_GL_CORE,
547 EXT(ARB_color_buffer_float),
548 EXTRA_NEW_BUFFERS,
549 EXTRA_END
550 };
551
552 static const int extra_EXT_shader_framebuffer_fetch[] = {
553 EXTRA_API_ES2,
554 EXTRA_API_ES3,
555 EXT(MESA_shader_framebuffer_fetch),
556 EXTRA_END
557 };
558
559 /* This is the big table describing all the enums we accept in
560 * glGet*v(). The table is partitioned into six parts: enums
561 * understood by all GL APIs (OpenGL, GLES and GLES2), enums shared
562 * between OpenGL and GLES, enums exclusive to GLES, etc for the
563 * remaining combinations. To look up the enums valid in a given API
564 * we will use a hash table specific to that API. These tables are in
565 * turn generated at build time and included through get_hash.h.
566 */
567
568 #include "get_hash.h"
569
570 /* All we need now is a way to look up the value struct from the enum.
571 * The code generated by gcc for the old generated big switch
572 * statement is a big, balanced, open coded if/else tree, essentially
573 * an unrolled binary search. It would be natural to sort the new
574 * enum table and use bsearch(), but we will use a read-only hash
575 * table instead. bsearch() has a nice guaranteed worst case
576 * performance, but we're also guaranteed to hit that worst case
577 * (log2(n) iterations) for about half the enums. Instead, using an
578 * open addressing hash table, we can find the enum on the first try
579 * for 80% of the enums, 1 collision for 10% and never more than 5
580 * collisions for any enum (typical numbers). And the code is very
581 * simple, even though it feels a little magic. */
582
583 /**
584 * Handle irregular enums
585 *
586 * Some values don't conform to the "well-known type at context
587 * pointer + offset" pattern, so we have this function to catch all
588 * the corner cases. Typically, it's a computed value or a one-off
589 * pointer to a custom struct or something.
590 *
591 * In this case we can't return a pointer to the value, so we'll have
592 * to use the temporary variable 'v' declared back in the calling
593 * glGet*v() function to store the result.
594 *
595 * \param ctx the current context
596 * \param d the struct value_desc that describes the enum
597 * \param v pointer to the tmp declared in the calling glGet*v() function
598 */
599 static void
600 find_custom_value(struct gl_context *ctx, const struct value_desc *d, union value *v)
601 {
602 struct gl_buffer_object **buffer_obj;
603 struct gl_vertex_attrib_array *array;
604 GLuint unit, *p;
605
606 switch (d->pname) {
607 case GL_MAJOR_VERSION:
608 v->value_int = ctx->Version / 10;
609 break;
610 case GL_MINOR_VERSION:
611 v->value_int = ctx->Version % 10;
612 break;
613
614 case GL_TEXTURE_1D:
615 case GL_TEXTURE_2D:
616 case GL_TEXTURE_3D:
617 case GL_TEXTURE_CUBE_MAP:
618 case GL_TEXTURE_RECTANGLE_NV:
619 case GL_TEXTURE_EXTERNAL_OES:
620 v->value_bool = _mesa_IsEnabled(d->pname);
621 break;
622
623 case GL_LINE_STIPPLE_PATTERN:
624 /* This is the only GLushort, special case it here by promoting
625 * to an int rather than introducing a new type. */
626 v->value_int = ctx->Line.StipplePattern;
627 break;
628
629 case GL_CURRENT_RASTER_TEXTURE_COORDS:
630 unit = ctx->Texture.CurrentUnit;
631 v->value_float_4[0] = ctx->Current.RasterTexCoords[unit][0];
632 v->value_float_4[1] = ctx->Current.RasterTexCoords[unit][1];
633 v->value_float_4[2] = ctx->Current.RasterTexCoords[unit][2];
634 v->value_float_4[3] = ctx->Current.RasterTexCoords[unit][3];
635 break;
636
637 case GL_CURRENT_TEXTURE_COORDS:
638 unit = ctx->Texture.CurrentUnit;
639 v->value_float_4[0] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][0];
640 v->value_float_4[1] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][1];
641 v->value_float_4[2] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][2];
642 v->value_float_4[3] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][3];
643 break;
644
645 case GL_COLOR_WRITEMASK:
646 v->value_int_4[0] = ctx->Color.ColorMask[0][RCOMP] ? 1 : 0;
647 v->value_int_4[1] = ctx->Color.ColorMask[0][GCOMP] ? 1 : 0;
648 v->value_int_4[2] = ctx->Color.ColorMask[0][BCOMP] ? 1 : 0;
649 v->value_int_4[3] = ctx->Color.ColorMask[0][ACOMP] ? 1 : 0;
650 break;
651
652 case GL_EDGE_FLAG:
653 v->value_bool = ctx->Current.Attrib[VERT_ATTRIB_EDGEFLAG][0] == 1.0F;
654 break;
655
656 case GL_READ_BUFFER:
657 v->value_enum = ctx->ReadBuffer->ColorReadBuffer;
658 break;
659
660 case GL_MAP2_GRID_DOMAIN:
661 v->value_float_4[0] = ctx->Eval.MapGrid2u1;
662 v->value_float_4[1] = ctx->Eval.MapGrid2u2;
663 v->value_float_4[2] = ctx->Eval.MapGrid2v1;
664 v->value_float_4[3] = ctx->Eval.MapGrid2v2;
665 break;
666
667 case GL_TEXTURE_STACK_DEPTH:
668 unit = ctx->Texture.CurrentUnit;
669 v->value_int = ctx->TextureMatrixStack[unit].Depth + 1;
670 break;
671 case GL_TEXTURE_MATRIX:
672 unit = ctx->Texture.CurrentUnit;
673 v->value_matrix = ctx->TextureMatrixStack[unit].Top;
674 break;
675
676 case GL_TEXTURE_COORD_ARRAY:
677 case GL_TEXTURE_COORD_ARRAY_SIZE:
678 case GL_TEXTURE_COORD_ARRAY_TYPE:
679 case GL_TEXTURE_COORD_ARRAY_STRIDE:
680 array = &ctx->Array.VAO->VertexAttrib[VERT_ATTRIB_TEX(ctx->Array.ActiveTexture)];
681 v->value_int = *(GLuint *) ((char *) array + d->offset);
682 break;
683
684 case GL_ACTIVE_TEXTURE_ARB:
685 v->value_int = GL_TEXTURE0_ARB + ctx->Texture.CurrentUnit;
686 break;
687 case GL_CLIENT_ACTIVE_TEXTURE_ARB:
688 v->value_int = GL_TEXTURE0_ARB + ctx->Array.ActiveTexture;
689 break;
690
691 case GL_MODELVIEW_STACK_DEPTH:
692 case GL_PROJECTION_STACK_DEPTH:
693 v->value_int = *(GLint *) ((char *) ctx + d->offset) + 1;
694 break;
695
696 case GL_MAX_TEXTURE_SIZE:
697 case GL_MAX_3D_TEXTURE_SIZE:
698 case GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB:
699 p = (GLuint *) ((char *) ctx + d->offset);
700 v->value_int = 1 << (*p - 1);
701 break;
702
703 case GL_SCISSOR_BOX:
704 v->value_int_4[0] = ctx->Scissor.ScissorArray[0].X;
705 v->value_int_4[1] = ctx->Scissor.ScissorArray[0].Y;
706 v->value_int_4[2] = ctx->Scissor.ScissorArray[0].Width;
707 v->value_int_4[3] = ctx->Scissor.ScissorArray[0].Height;
708 break;
709
710 case GL_SCISSOR_TEST:
711 v->value_bool = ctx->Scissor.EnableFlags & 1;
712 break;
713
714 case GL_LIST_INDEX:
715 v->value_int =
716 ctx->ListState.CurrentList ? ctx->ListState.CurrentList->Name : 0;
717 break;
718 case GL_LIST_MODE:
719 if (!ctx->CompileFlag)
720 v->value_enum = 0;
721 else if (ctx->ExecuteFlag)
722 v->value_enum = GL_COMPILE_AND_EXECUTE;
723 else
724 v->value_enum = GL_COMPILE;
725 break;
726
727 case GL_VIEWPORT:
728 v->value_float_4[0] = ctx->ViewportArray[0].X;
729 v->value_float_4[1] = ctx->ViewportArray[0].Y;
730 v->value_float_4[2] = ctx->ViewportArray[0].Width;
731 v->value_float_4[3] = ctx->ViewportArray[0].Height;
732 break;
733
734 case GL_DEPTH_RANGE:
735 v->value_double_2[0] = ctx->ViewportArray[0].Near;
736 v->value_double_2[1] = ctx->ViewportArray[0].Far;
737 break;
738
739 case GL_ACTIVE_STENCIL_FACE_EXT:
740 v->value_enum = ctx->Stencil.ActiveFace ? GL_BACK : GL_FRONT;
741 break;
742
743 case GL_STENCIL_FAIL:
744 v->value_enum = ctx->Stencil.FailFunc[ctx->Stencil.ActiveFace];
745 break;
746 case GL_STENCIL_FUNC:
747 v->value_enum = ctx->Stencil.Function[ctx->Stencil.ActiveFace];
748 break;
749 case GL_STENCIL_PASS_DEPTH_FAIL:
750 v->value_enum = ctx->Stencil.ZFailFunc[ctx->Stencil.ActiveFace];
751 break;
752 case GL_STENCIL_PASS_DEPTH_PASS:
753 v->value_enum = ctx->Stencil.ZPassFunc[ctx->Stencil.ActiveFace];
754 break;
755 case GL_STENCIL_REF:
756 v->value_int = _mesa_get_stencil_ref(ctx, ctx->Stencil.ActiveFace);
757 break;
758 case GL_STENCIL_BACK_REF:
759 v->value_int = _mesa_get_stencil_ref(ctx, 1);
760 break;
761 case GL_STENCIL_VALUE_MASK:
762 v->value_int = ctx->Stencil.ValueMask[ctx->Stencil.ActiveFace];
763 break;
764 case GL_STENCIL_WRITEMASK:
765 v->value_int = ctx->Stencil.WriteMask[ctx->Stencil.ActiveFace];
766 break;
767
768 case GL_NUM_EXTENSIONS:
769 v->value_int = _mesa_get_extension_count(ctx);
770 break;
771
772 case GL_IMPLEMENTATION_COLOR_READ_TYPE_OES:
773 v->value_int = _mesa_get_color_read_type(ctx);
774 break;
775 case GL_IMPLEMENTATION_COLOR_READ_FORMAT_OES:
776 v->value_int = _mesa_get_color_read_format(ctx);
777 break;
778
779 case GL_CURRENT_MATRIX_STACK_DEPTH_ARB:
780 v->value_int = ctx->CurrentStack->Depth + 1;
781 break;
782 case GL_CURRENT_MATRIX_ARB:
783 case GL_TRANSPOSE_CURRENT_MATRIX_ARB:
784 v->value_matrix = ctx->CurrentStack->Top;
785 break;
786
787 case GL_NUM_COMPRESSED_TEXTURE_FORMATS_ARB:
788 v->value_int = _mesa_get_compressed_formats(ctx, NULL);
789 break;
790 case GL_COMPRESSED_TEXTURE_FORMATS_ARB:
791 v->value_int_n.n =
792 _mesa_get_compressed_formats(ctx, v->value_int_n.ints);
793 assert(v->value_int_n.n <= (int) ARRAY_SIZE(v->value_int_n.ints));
794 break;
795
796 case GL_MAX_VARYING_FLOATS_ARB:
797 v->value_int = ctx->Const.MaxVarying * 4;
798 break;
799
800 /* Various object names */
801
802 case GL_TEXTURE_BINDING_1D:
803 case GL_TEXTURE_BINDING_2D:
804 case GL_TEXTURE_BINDING_3D:
805 case GL_TEXTURE_BINDING_1D_ARRAY_EXT:
806 case GL_TEXTURE_BINDING_2D_ARRAY_EXT:
807 case GL_TEXTURE_BINDING_CUBE_MAP_ARB:
808 case GL_TEXTURE_BINDING_RECTANGLE_NV:
809 case GL_TEXTURE_BINDING_EXTERNAL_OES:
810 case GL_TEXTURE_BINDING_CUBE_MAP_ARRAY:
811 case GL_TEXTURE_BINDING_2D_MULTISAMPLE:
812 case GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY:
813 unit = ctx->Texture.CurrentUnit;
814 v->value_int =
815 ctx->Texture.Unit[unit].CurrentTex[d->offset]->Name;
816 break;
817
818 /* GL_EXT_packed_float */
819 case GL_RGBA_SIGNED_COMPONENTS_EXT:
820 {
821 /* Note: we only check the 0th color attachment. */
822 const struct gl_renderbuffer *rb =
823 ctx->DrawBuffer->_ColorDrawBuffers[0];
824 if (rb && _mesa_is_format_signed(rb->Format)) {
825 /* Issue 17 of GL_EXT_packed_float: If a component (such as
826 * alpha) has zero bits, the component should not be considered
827 * signed and so the bit for the respective component should be
828 * zeroed.
829 */
830 GLint r_bits =
831 _mesa_get_format_bits(rb->Format, GL_RED_BITS);
832 GLint g_bits =
833 _mesa_get_format_bits(rb->Format, GL_GREEN_BITS);
834 GLint b_bits =
835 _mesa_get_format_bits(rb->Format, GL_BLUE_BITS);
836 GLint a_bits =
837 _mesa_get_format_bits(rb->Format, GL_ALPHA_BITS);
838 GLint l_bits =
839 _mesa_get_format_bits(rb->Format, GL_TEXTURE_LUMINANCE_SIZE);
840 GLint i_bits =
841 _mesa_get_format_bits(rb->Format, GL_TEXTURE_INTENSITY_SIZE);
842
843 v->value_int_4[0] = r_bits + l_bits + i_bits > 0;
844 v->value_int_4[1] = g_bits + l_bits + i_bits > 0;
845 v->value_int_4[2] = b_bits + l_bits + i_bits > 0;
846 v->value_int_4[3] = a_bits + i_bits > 0;
847 }
848 else {
849 v->value_int_4[0] =
850 v->value_int_4[1] =
851 v->value_int_4[2] =
852 v->value_int_4[3] = 0;
853 }
854 }
855 break;
856
857 /* GL_ARB_vertex_buffer_object */
858 case GL_VERTEX_ARRAY_BUFFER_BINDING_ARB:
859 case GL_NORMAL_ARRAY_BUFFER_BINDING_ARB:
860 case GL_COLOR_ARRAY_BUFFER_BINDING_ARB:
861 case GL_INDEX_ARRAY_BUFFER_BINDING_ARB:
862 case GL_EDGE_FLAG_ARRAY_BUFFER_BINDING_ARB:
863 case GL_SECONDARY_COLOR_ARRAY_BUFFER_BINDING_ARB:
864 case GL_FOG_COORDINATE_ARRAY_BUFFER_BINDING_ARB:
865 buffer_obj = (struct gl_buffer_object **)
866 ((char *) ctx->Array.VAO + d->offset);
867 v->value_int = (*buffer_obj)->Name;
868 break;
869 case GL_ARRAY_BUFFER_BINDING_ARB:
870 v->value_int = ctx->Array.ArrayBufferObj->Name;
871 break;
872 case GL_TEXTURE_COORD_ARRAY_BUFFER_BINDING_ARB:
873 v->value_int =
874 ctx->Array.VAO->VertexBinding[VERT_ATTRIB_TEX(ctx->Array.ActiveTexture)].BufferObj->Name;
875 break;
876 case GL_ELEMENT_ARRAY_BUFFER_BINDING_ARB:
877 v->value_int = ctx->Array.VAO->IndexBufferObj->Name;
878 break;
879
880 /* ARB_vertex_array_bgra */
881 case GL_COLOR_ARRAY_SIZE:
882 array = &ctx->Array.VAO->VertexAttrib[VERT_ATTRIB_COLOR0];
883 v->value_int = array->Format == GL_BGRA ? GL_BGRA : array->Size;
884 break;
885 case GL_SECONDARY_COLOR_ARRAY_SIZE:
886 array = &ctx->Array.VAO->VertexAttrib[VERT_ATTRIB_COLOR1];
887 v->value_int = array->Format == GL_BGRA ? GL_BGRA : array->Size;
888 break;
889
890 /* ARB_copy_buffer */
891 case GL_COPY_READ_BUFFER:
892 v->value_int = ctx->CopyReadBuffer->Name;
893 break;
894 case GL_COPY_WRITE_BUFFER:
895 v->value_int = ctx->CopyWriteBuffer->Name;
896 break;
897
898 case GL_PIXEL_PACK_BUFFER_BINDING_EXT:
899 v->value_int = ctx->Pack.BufferObj->Name;
900 break;
901 case GL_PIXEL_UNPACK_BUFFER_BINDING_EXT:
902 v->value_int = ctx->Unpack.BufferObj->Name;
903 break;
904 case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING:
905 v->value_int = ctx->TransformFeedback.CurrentBuffer->Name;
906 break;
907 case GL_TRANSFORM_FEEDBACK_BUFFER_PAUSED:
908 v->value_int = ctx->TransformFeedback.CurrentObject->Paused;
909 break;
910 case GL_TRANSFORM_FEEDBACK_BUFFER_ACTIVE:
911 v->value_int = ctx->TransformFeedback.CurrentObject->Active;
912 break;
913 case GL_TRANSFORM_FEEDBACK_BINDING:
914 v->value_int = ctx->TransformFeedback.CurrentObject->Name;
915 break;
916 case GL_CURRENT_PROGRAM:
917 /* The Changelog of the ARB_separate_shader_objects spec says:
918 *
919 * 24 25 Jul 2011 pbrown Remove the language erroneously deleting
920 * CURRENT_PROGRAM. In the EXT extension, this
921 * token was aliased to ACTIVE_PROGRAM_EXT, and
922 * was used to indicate the last program set by
923 * either ActiveProgramEXT or UseProgram. In
924 * the ARB extension, the SSO active programs
925 * are now program pipeline object state and
926 * CURRENT_PROGRAM should still be used to query
927 * the last program set by UseProgram (bug 7822).
928 */
929 v->value_int =
930 ctx->Shader.ActiveProgram ? ctx->Shader.ActiveProgram->Name : 0;
931 break;
932 case GL_READ_FRAMEBUFFER_BINDING_EXT:
933 v->value_int = ctx->ReadBuffer->Name;
934 break;
935 case GL_RENDERBUFFER_BINDING_EXT:
936 v->value_int =
937 ctx->CurrentRenderbuffer ? ctx->CurrentRenderbuffer->Name : 0;
938 break;
939 case GL_POINT_SIZE_ARRAY_BUFFER_BINDING_OES:
940 v->value_int = ctx->Array.VAO->VertexBinding[VERT_ATTRIB_POINT_SIZE].BufferObj->Name;
941 break;
942
943 case GL_FOG_COLOR:
944 if (_mesa_get_clamp_fragment_color(ctx, ctx->DrawBuffer))
945 COPY_4FV(v->value_float_4, ctx->Fog.Color);
946 else
947 COPY_4FV(v->value_float_4, ctx->Fog.ColorUnclamped);
948 break;
949 case GL_COLOR_CLEAR_VALUE:
950 if (_mesa_get_clamp_fragment_color(ctx, ctx->DrawBuffer)) {
951 v->value_float_4[0] = CLAMP(ctx->Color.ClearColor.f[0], 0.0F, 1.0F);
952 v->value_float_4[1] = CLAMP(ctx->Color.ClearColor.f[1], 0.0F, 1.0F);
953 v->value_float_4[2] = CLAMP(ctx->Color.ClearColor.f[2], 0.0F, 1.0F);
954 v->value_float_4[3] = CLAMP(ctx->Color.ClearColor.f[3], 0.0F, 1.0F);
955 } else
956 COPY_4FV(v->value_float_4, ctx->Color.ClearColor.f);
957 break;
958 case GL_BLEND_COLOR_EXT:
959 if (_mesa_get_clamp_fragment_color(ctx, ctx->DrawBuffer))
960 COPY_4FV(v->value_float_4, ctx->Color.BlendColor);
961 else
962 COPY_4FV(v->value_float_4, ctx->Color.BlendColorUnclamped);
963 break;
964 case GL_ALPHA_TEST_REF:
965 if (_mesa_get_clamp_fragment_color(ctx, ctx->DrawBuffer))
966 v->value_float = ctx->Color.AlphaRef;
967 else
968 v->value_float = ctx->Color.AlphaRefUnclamped;
969 break;
970 case GL_MAX_VERTEX_UNIFORM_VECTORS:
971 v->value_int = ctx->Const.Program[MESA_SHADER_VERTEX].MaxUniformComponents / 4;
972 break;
973
974 case GL_MAX_FRAGMENT_UNIFORM_VECTORS:
975 v->value_int = ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxUniformComponents / 4;
976 break;
977
978 /* GL_ARB_texture_buffer_object */
979 case GL_TEXTURE_BUFFER_ARB:
980 v->value_int = ctx->Texture.BufferObject->Name;
981 break;
982 case GL_TEXTURE_BINDING_BUFFER_ARB:
983 unit = ctx->Texture.CurrentUnit;
984 v->value_int =
985 ctx->Texture.Unit[unit].CurrentTex[TEXTURE_BUFFER_INDEX]->Name;
986 break;
987 case GL_TEXTURE_BUFFER_DATA_STORE_BINDING_ARB:
988 {
989 struct gl_buffer_object *buf =
990 ctx->Texture.Unit[ctx->Texture.CurrentUnit]
991 .CurrentTex[TEXTURE_BUFFER_INDEX]->BufferObject;
992 v->value_int = buf ? buf->Name : 0;
993 }
994 break;
995 case GL_TEXTURE_BUFFER_FORMAT_ARB:
996 v->value_int = ctx->Texture.Unit[ctx->Texture.CurrentUnit]
997 .CurrentTex[TEXTURE_BUFFER_INDEX]->BufferObjectFormat;
998 break;
999
1000 /* GL_ARB_sampler_objects */
1001 case GL_SAMPLER_BINDING:
1002 {
1003 struct gl_sampler_object *samp =
1004 ctx->Texture.Unit[ctx->Texture.CurrentUnit].Sampler;
1005 v->value_int = samp ? samp->Name : 0;
1006 }
1007 break;
1008 /* GL_ARB_uniform_buffer_object */
1009 case GL_UNIFORM_BUFFER_BINDING:
1010 v->value_int = ctx->UniformBuffer->Name;
1011 break;
1012 /* GL_ARB_shader_storage_buffer_object */
1013 case GL_SHADER_STORAGE_BUFFER_BINDING:
1014 v->value_int = ctx->ShaderStorageBuffer->Name;
1015 break;
1016 /* GL_ARB_query_buffer_object */
1017 case GL_QUERY_BUFFER_BINDING:
1018 v->value_int = ctx->QueryBuffer->Name;
1019 break;
1020 /* GL_ARB_timer_query */
1021 case GL_TIMESTAMP:
1022 if (ctx->Driver.GetTimestamp) {
1023 v->value_int64 = ctx->Driver.GetTimestamp(ctx);
1024 }
1025 else {
1026 _mesa_problem(ctx, "driver doesn't implement GetTimestamp");
1027 }
1028 break;
1029 /* GL_KHR_DEBUG */
1030 case GL_DEBUG_OUTPUT:
1031 case GL_DEBUG_OUTPUT_SYNCHRONOUS:
1032 case GL_DEBUG_LOGGED_MESSAGES:
1033 case GL_DEBUG_NEXT_LOGGED_MESSAGE_LENGTH:
1034 case GL_DEBUG_GROUP_STACK_DEPTH:
1035 v->value_int = _mesa_get_debug_state_int(ctx, d->pname);
1036 break;
1037 /* GL_ARB_shader_atomic_counters */
1038 case GL_ATOMIC_COUNTER_BUFFER_BINDING:
1039 if (ctx->AtomicBuffer) {
1040 v->value_int = ctx->AtomicBuffer->Name;
1041 } else {
1042 v->value_int = 0;
1043 }
1044 break;
1045 /* GL_ARB_draw_indirect */
1046 case GL_DRAW_INDIRECT_BUFFER_BINDING:
1047 v->value_int = ctx->DrawIndirectBuffer->Name;
1048 break;
1049 /* GL_ARB_indirect_parameters */
1050 case GL_PARAMETER_BUFFER_BINDING_ARB:
1051 v->value_int = ctx->ParameterBuffer->Name;
1052 break;
1053 /* GL_ARB_separate_shader_objects */
1054 case GL_PROGRAM_PIPELINE_BINDING:
1055 if (ctx->Pipeline.Current) {
1056 v->value_int = ctx->Pipeline.Current->Name;
1057 } else {
1058 v->value_int = 0;
1059 }
1060 break;
1061 /* GL_ARB_compute_shader */
1062 case GL_DISPATCH_INDIRECT_BUFFER_BINDING:
1063 v->value_int = ctx->DispatchIndirectBuffer->Name;
1064 break;
1065 /* GL_ARB_multisample */
1066 case GL_SAMPLES:
1067 v->value_int = _mesa_geometric_samples(ctx->DrawBuffer);
1068 break;
1069 case GL_SAMPLE_BUFFERS:
1070 v->value_int = _mesa_geometric_samples(ctx->DrawBuffer) > 0;
1071 break;
1072 /* GL_ATI_meminfo & GL_NVX_gpu_memory_info */
1073 case GL_VBO_FREE_MEMORY_ATI:
1074 case GL_TEXTURE_FREE_MEMORY_ATI:
1075 case GL_RENDERBUFFER_FREE_MEMORY_ATI:
1076 case GL_GPU_MEMORY_INFO_DEDICATED_VIDMEM_NVX:
1077 case GL_GPU_MEMORY_INFO_TOTAL_AVAILABLE_MEMORY_NVX:
1078 case GL_GPU_MEMORY_INFO_CURRENT_AVAILABLE_VIDMEM_NVX:
1079 case GL_GPU_MEMORY_INFO_EVICTION_COUNT_NVX:
1080 case GL_GPU_MEMORY_INFO_EVICTED_MEMORY_NVX:
1081 {
1082 struct gl_memory_info info;
1083
1084 ctx->Driver.QueryMemoryInfo(ctx, &info);
1085
1086 if (d->pname == GL_GPU_MEMORY_INFO_DEDICATED_VIDMEM_NVX)
1087 v->value_int = info.total_device_memory;
1088 else if (d->pname == GL_GPU_MEMORY_INFO_TOTAL_AVAILABLE_MEMORY_NVX)
1089 v->value_int = info.total_device_memory +
1090 info.total_staging_memory;
1091 else if (d->pname == GL_GPU_MEMORY_INFO_CURRENT_AVAILABLE_VIDMEM_NVX)
1092 v->value_int = info.avail_device_memory;
1093 else if (d->pname == GL_GPU_MEMORY_INFO_EVICTION_COUNT_NVX)
1094 v->value_int = info.nr_device_memory_evictions;
1095 else if (d->pname == GL_GPU_MEMORY_INFO_EVICTED_MEMORY_NVX)
1096 v->value_int = info.device_memory_evicted;
1097 else {
1098 /* ATI free memory enums.
1099 *
1100 * Since the GPU memory is (usually) page-table based, every two
1101 * consecutive elements are equal. From the GL_ATI_meminfo
1102 * specification:
1103 *
1104 * "param[0] - total memory free in the pool
1105 * param[1] - largest available free block in the pool
1106 * param[2] - total auxiliary memory free
1107 * param[3] - largest auxiliary free block"
1108 *
1109 * All three (VBO, TEXTURE, RENDERBUFFER) queries return
1110 * the same numbers here.
1111 */
1112 v->value_int_4[0] = info.avail_device_memory;
1113 v->value_int_4[1] = info.avail_device_memory;
1114 v->value_int_4[2] = info.avail_staging_memory;
1115 v->value_int_4[3] = info.avail_staging_memory;
1116 }
1117 }
1118 break;
1119 }
1120 }
1121
1122 /**
1123 * Check extra constraints on a struct value_desc descriptor
1124 *
1125 * If a struct value_desc has a non-NULL extra pointer, it means that
1126 * there are a number of extra constraints to check or actions to
1127 * perform. The extras is just an integer array where each integer
1128 * encode different constraints or actions.
1129 *
1130 * \param ctx current context
1131 * \param func name of calling glGet*v() function for error reporting
1132 * \param d the struct value_desc that has the extra constraints
1133 *
1134 * \return GL_FALSE if all of the constraints were not satisfied,
1135 * otherwise GL_TRUE.
1136 */
1137 static GLboolean
1138 check_extra(struct gl_context *ctx, const char *func, const struct value_desc *d)
1139 {
1140 const GLuint version = ctx->Version;
1141 GLboolean api_check = GL_FALSE;
1142 GLboolean api_found = GL_FALSE;
1143 const int *e;
1144
1145 for (e = d->extra; *e != EXTRA_END; e++) {
1146 switch (*e) {
1147 case EXTRA_VERSION_30:
1148 api_check = GL_TRUE;
1149 if (version >= 30)
1150 api_found = GL_TRUE;
1151 break;
1152 case EXTRA_VERSION_31:
1153 api_check = GL_TRUE;
1154 if (version >= 31)
1155 api_found = GL_TRUE;
1156 break;
1157 case EXTRA_VERSION_32:
1158 api_check = GL_TRUE;
1159 if (version >= 32)
1160 api_found = GL_TRUE;
1161 break;
1162 case EXTRA_NEW_FRAG_CLAMP:
1163 if (ctx->NewState & (_NEW_BUFFERS | _NEW_FRAG_CLAMP))
1164 _mesa_update_state(ctx);
1165 break;
1166 case EXTRA_API_ES2:
1167 api_check = GL_TRUE;
1168 if (ctx->API == API_OPENGLES2)
1169 api_found = GL_TRUE;
1170 break;
1171 case EXTRA_API_ES3:
1172 api_check = GL_TRUE;
1173 if (_mesa_is_gles3(ctx))
1174 api_found = GL_TRUE;
1175 break;
1176 case EXTRA_API_ES31:
1177 api_check = GL_TRUE;
1178 if (_mesa_is_gles31(ctx))
1179 api_found = GL_TRUE;
1180 break;
1181 case EXTRA_API_ES32:
1182 api_check = GL_TRUE;
1183 if (_mesa_is_gles32(ctx))
1184 api_found = GL_TRUE;
1185 break;
1186 case EXTRA_API_GL:
1187 api_check = GL_TRUE;
1188 if (_mesa_is_desktop_gl(ctx))
1189 api_found = GL_TRUE;
1190 break;
1191 case EXTRA_API_GL_CORE:
1192 api_check = GL_TRUE;
1193 if (ctx->API == API_OPENGL_CORE)
1194 api_found = GL_TRUE;
1195 break;
1196 case EXTRA_NEW_BUFFERS:
1197 if (ctx->NewState & _NEW_BUFFERS)
1198 _mesa_update_state(ctx);
1199 break;
1200 case EXTRA_FLUSH_CURRENT:
1201 FLUSH_CURRENT(ctx, 0);
1202 break;
1203 case EXTRA_VALID_DRAW_BUFFER:
1204 if (d->pname - GL_DRAW_BUFFER0_ARB >= ctx->Const.MaxDrawBuffers) {
1205 _mesa_error(ctx, GL_INVALID_OPERATION, "%s(draw buffer %u)",
1206 func, d->pname - GL_DRAW_BUFFER0_ARB);
1207 return GL_FALSE;
1208 }
1209 break;
1210 case EXTRA_VALID_TEXTURE_UNIT:
1211 if (ctx->Texture.CurrentUnit >= ctx->Const.MaxTextureCoordUnits) {
1212 _mesa_error(ctx, GL_INVALID_OPERATION, "%s(texture %u)",
1213 func, ctx->Texture.CurrentUnit);
1214 return GL_FALSE;
1215 }
1216 break;
1217 case EXTRA_VALID_CLIP_DISTANCE:
1218 if (d->pname - GL_CLIP_DISTANCE0 >= ctx->Const.MaxClipPlanes) {
1219 _mesa_error(ctx, GL_INVALID_ENUM, "%s(clip distance %u)",
1220 func, d->pname - GL_CLIP_DISTANCE0);
1221 return GL_FALSE;
1222 }
1223 break;
1224 case EXTRA_GLSL_130:
1225 api_check = GL_TRUE;
1226 if (ctx->Const.GLSLVersion >= 130)
1227 api_found = GL_TRUE;
1228 break;
1229 case EXTRA_EXT_UBO_GS:
1230 api_check = GL_TRUE;
1231 if (ctx->Extensions.ARB_uniform_buffer_object &&
1232 _mesa_has_geometry_shaders(ctx))
1233 api_found = GL_TRUE;
1234 break;
1235 case EXTRA_EXT_ATOMICS_GS:
1236 api_check = GL_TRUE;
1237 if (ctx->Extensions.ARB_shader_atomic_counters &&
1238 _mesa_has_geometry_shaders(ctx))
1239 api_found = GL_TRUE;
1240 break;
1241 case EXTRA_EXT_SHADER_IMAGE_GS:
1242 api_check = GL_TRUE;
1243 if (ctx->Extensions.ARB_shader_image_load_store &&
1244 _mesa_has_geometry_shaders(ctx))
1245 api_found = GL_TRUE;
1246 break;
1247 case EXTRA_EXT_ATOMICS_TESS:
1248 api_check = GL_TRUE;
1249 api_found = ctx->Extensions.ARB_shader_atomic_counters &&
1250 _mesa_has_tessellation(ctx);
1251 break;
1252 case EXTRA_EXT_SHADER_IMAGE_TESS:
1253 api_check = GL_TRUE;
1254 api_found = ctx->Extensions.ARB_shader_image_load_store &&
1255 _mesa_has_tessellation(ctx);
1256 break;
1257 case EXTRA_EXT_SSBO_GS:
1258 api_check = GL_TRUE;
1259 if (ctx->Extensions.ARB_shader_storage_buffer_object &&
1260 _mesa_has_geometry_shaders(ctx))
1261 api_found = GL_TRUE;
1262 break;
1263 case EXTRA_EXT_FB_NO_ATTACH_GS:
1264 api_check = GL_TRUE;
1265 if (ctx->Extensions.ARB_framebuffer_no_attachments &&
1266 (_mesa_is_desktop_gl(ctx) ||
1267 _mesa_has_OES_geometry_shader(ctx)))
1268 api_found = GL_TRUE;
1269 break;
1270 case EXTRA_EXT_ES_GS:
1271 api_check = GL_TRUE;
1272 if (_mesa_has_OES_geometry_shader(ctx))
1273 api_found = GL_TRUE;
1274 break;
1275 case EXTRA_END:
1276 break;
1277 default: /* *e is a offset into the extension struct */
1278 api_check = GL_TRUE;
1279 if (*(GLboolean *) ((char *) &ctx->Extensions + *e))
1280 api_found = GL_TRUE;
1281 break;
1282 }
1283 }
1284
1285 if (api_check && !api_found) {
1286 _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func,
1287 _mesa_enum_to_string(d->pname));
1288 return GL_FALSE;
1289 }
1290
1291 return GL_TRUE;
1292 }
1293
1294 static const struct value_desc error_value =
1295 { 0, 0, TYPE_INVALID, NO_OFFSET, NO_EXTRA };
1296
1297 /**
1298 * Find the struct value_desc corresponding to the enum 'pname'.
1299 *
1300 * We hash the enum value to get an index into the 'table' array,
1301 * which holds the index in the 'values' array of struct value_desc.
1302 * Once we've found the entry, we do the extra checks, if any, then
1303 * look up the value and return a pointer to it.
1304 *
1305 * If the value has to be computed (for example, it's the result of a
1306 * function call or we need to add 1 to it), we use the tmp 'v' to
1307 * store the result.
1308 *
1309 * \param func name of glGet*v() func for error reporting
1310 * \param pname the enum value we're looking up
1311 * \param p is were we return the pointer to the value
1312 * \param v a tmp union value variable in the calling glGet*v() function
1313 *
1314 * \return the struct value_desc corresponding to the enum or a struct
1315 * value_desc of TYPE_INVALID if not found. This lets the calling
1316 * glGet*v() function jump right into a switch statement and
1317 * handle errors there instead of having to check for NULL.
1318 */
1319 static const struct value_desc *
1320 find_value(const char *func, GLenum pname, void **p, union value *v)
1321 {
1322 GET_CURRENT_CONTEXT(ctx);
1323 struct gl_texture_unit *unit;
1324 int mask, hash;
1325 const struct value_desc *d;
1326 int api;
1327
1328 api = ctx->API;
1329 /* We index into the table_set[] list of per-API hash tables using the API's
1330 * value in the gl_api enum. Since GLES 3 doesn't have an API_OPENGL* enum
1331 * value since it's compatible with GLES2 its entry in table_set[] is at the
1332 * end.
1333 */
1334 STATIC_ASSERT(ARRAY_SIZE(table_set) == API_OPENGL_LAST + 4);
1335 if (ctx->API == API_OPENGLES2) {
1336 if (ctx->Version >= 32)
1337 api = API_OPENGL_LAST + 3;
1338 else if (ctx->Version >= 31)
1339 api = API_OPENGL_LAST + 2;
1340 else if (ctx->Version >= 30)
1341 api = API_OPENGL_LAST + 1;
1342 }
1343 mask = ARRAY_SIZE(table(api)) - 1;
1344 hash = (pname * prime_factor);
1345 while (1) {
1346 int idx = table(api)[hash & mask];
1347
1348 /* If the enum isn't valid, the hash walk ends with index 0,
1349 * pointing to the first entry of values[] which doesn't hold
1350 * any valid enum. */
1351 if (unlikely(idx == 0)) {
1352 _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func,
1353 _mesa_enum_to_string(pname));
1354 return &error_value;
1355 }
1356
1357 d = &values[idx];
1358 if (likely(d->pname == pname))
1359 break;
1360
1361 hash += prime_step;
1362 }
1363
1364 if (unlikely(d->extra && !check_extra(ctx, func, d)))
1365 return &error_value;
1366
1367 switch (d->location) {
1368 case LOC_BUFFER:
1369 *p = ((char *) ctx->DrawBuffer + d->offset);
1370 return d;
1371 case LOC_CONTEXT:
1372 *p = ((char *) ctx + d->offset);
1373 return d;
1374 case LOC_ARRAY:
1375 *p = ((char *) ctx->Array.VAO + d->offset);
1376 return d;
1377 case LOC_TEXUNIT:
1378 unit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
1379 *p = ((char *) unit + d->offset);
1380 return d;
1381 case LOC_CUSTOM:
1382 find_custom_value(ctx, d, v);
1383 *p = v;
1384 return d;
1385 default:
1386 assert(0);
1387 break;
1388 }
1389
1390 /* silence warning */
1391 return &error_value;
1392 }
1393
1394 static const int transpose[] = {
1395 0, 4, 8, 12,
1396 1, 5, 9, 13,
1397 2, 6, 10, 14,
1398 3, 7, 11, 15
1399 };
1400
1401 void GLAPIENTRY
1402 _mesa_GetBooleanv(GLenum pname, GLboolean *params)
1403 {
1404 const struct value_desc *d;
1405 union value v;
1406 GLmatrix *m;
1407 int shift, i;
1408 void *p;
1409
1410 d = find_value("glGetBooleanv", pname, &p, &v);
1411 switch (d->type) {
1412 case TYPE_INVALID:
1413 break;
1414 case TYPE_CONST:
1415 params[0] = INT_TO_BOOLEAN(d->offset);
1416 break;
1417
1418 case TYPE_FLOAT_8:
1419 params[7] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[7]);
1420 params[6] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[6]);
1421 params[5] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[5]);
1422 params[4] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[4]);
1423 case TYPE_FLOAT_4:
1424 case TYPE_FLOATN_4:
1425 params[3] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[3]);
1426 case TYPE_FLOAT_3:
1427 case TYPE_FLOATN_3:
1428 params[2] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[2]);
1429 case TYPE_FLOAT_2:
1430 case TYPE_FLOATN_2:
1431 params[1] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[1]);
1432 case TYPE_FLOAT:
1433 case TYPE_FLOATN:
1434 params[0] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[0]);
1435 break;
1436
1437 case TYPE_DOUBLEN_2:
1438 params[1] = FLOAT_TO_BOOLEAN(((GLdouble *) p)[1]);
1439 case TYPE_DOUBLEN:
1440 params[0] = FLOAT_TO_BOOLEAN(((GLdouble *) p)[0]);
1441 break;
1442
1443 case TYPE_INT_4:
1444 params[3] = INT_TO_BOOLEAN(((GLint *) p)[3]);
1445 case TYPE_INT_3:
1446 params[2] = INT_TO_BOOLEAN(((GLint *) p)[2]);
1447 case TYPE_INT_2:
1448 case TYPE_ENUM_2:
1449 params[1] = INT_TO_BOOLEAN(((GLint *) p)[1]);
1450 case TYPE_INT:
1451 case TYPE_ENUM:
1452 params[0] = INT_TO_BOOLEAN(((GLint *) p)[0]);
1453 break;
1454
1455 case TYPE_INT_N:
1456 for (i = 0; i < v.value_int_n.n; i++)
1457 params[i] = INT_TO_BOOLEAN(v.value_int_n.ints[i]);
1458 break;
1459
1460 case TYPE_INT64:
1461 params[0] = INT64_TO_BOOLEAN(((GLint64 *) p)[0]);
1462 break;
1463
1464 case TYPE_BOOLEAN:
1465 params[0] = ((GLboolean*) p)[0];
1466 break;
1467
1468 case TYPE_MATRIX:
1469 m = *(GLmatrix **) p;
1470 for (i = 0; i < 16; i++)
1471 params[i] = FLOAT_TO_BOOLEAN(m->m[i]);
1472 break;
1473
1474 case TYPE_MATRIX_T:
1475 m = *(GLmatrix **) p;
1476 for (i = 0; i < 16; i++)
1477 params[i] = FLOAT_TO_BOOLEAN(m->m[transpose[i]]);
1478 break;
1479
1480 case TYPE_BIT_0:
1481 case TYPE_BIT_1:
1482 case TYPE_BIT_2:
1483 case TYPE_BIT_3:
1484 case TYPE_BIT_4:
1485 case TYPE_BIT_5:
1486 case TYPE_BIT_6:
1487 case TYPE_BIT_7:
1488 shift = d->type - TYPE_BIT_0;
1489 params[0] = (*(GLbitfield *) p >> shift) & 1;
1490 break;
1491 }
1492 }
1493
1494 void GLAPIENTRY
1495 _mesa_GetFloatv(GLenum pname, GLfloat *params)
1496 {
1497 const struct value_desc *d;
1498 union value v;
1499 GLmatrix *m;
1500 int shift, i;
1501 void *p;
1502
1503 d = find_value("glGetFloatv", pname, &p, &v);
1504 switch (d->type) {
1505 case TYPE_INVALID:
1506 break;
1507 case TYPE_CONST:
1508 params[0] = (GLfloat) d->offset;
1509 break;
1510
1511 case TYPE_FLOAT_8:
1512 params[7] = ((GLfloat *) p)[7];
1513 params[6] = ((GLfloat *) p)[6];
1514 params[5] = ((GLfloat *) p)[5];
1515 params[4] = ((GLfloat *) p)[4];
1516 case TYPE_FLOAT_4:
1517 case TYPE_FLOATN_4:
1518 params[3] = ((GLfloat *) p)[3];
1519 case TYPE_FLOAT_3:
1520 case TYPE_FLOATN_3:
1521 params[2] = ((GLfloat *) p)[2];
1522 case TYPE_FLOAT_2:
1523 case TYPE_FLOATN_2:
1524 params[1] = ((GLfloat *) p)[1];
1525 case TYPE_FLOAT:
1526 case TYPE_FLOATN:
1527 params[0] = ((GLfloat *) p)[0];
1528 break;
1529
1530 case TYPE_DOUBLEN_2:
1531 params[1] = (GLfloat) (((GLdouble *) p)[1]);
1532 case TYPE_DOUBLEN:
1533 params[0] = (GLfloat) (((GLdouble *) p)[0]);
1534 break;
1535
1536 case TYPE_INT_4:
1537 params[3] = (GLfloat) (((GLint *) p)[3]);
1538 case TYPE_INT_3:
1539 params[2] = (GLfloat) (((GLint *) p)[2]);
1540 case TYPE_INT_2:
1541 case TYPE_ENUM_2:
1542 params[1] = (GLfloat) (((GLint *) p)[1]);
1543 case TYPE_INT:
1544 case TYPE_ENUM:
1545 params[0] = (GLfloat) (((GLint *) p)[0]);
1546 break;
1547
1548 case TYPE_INT_N:
1549 for (i = 0; i < v.value_int_n.n; i++)
1550 params[i] = INT_TO_FLOAT(v.value_int_n.ints[i]);
1551 break;
1552
1553 case TYPE_INT64:
1554 params[0] = (GLfloat) (((GLint64 *) p)[0]);
1555 break;
1556
1557 case TYPE_BOOLEAN:
1558 params[0] = BOOLEAN_TO_FLOAT(*(GLboolean*) p);
1559 break;
1560
1561 case TYPE_MATRIX:
1562 m = *(GLmatrix **) p;
1563 for (i = 0; i < 16; i++)
1564 params[i] = m->m[i];
1565 break;
1566
1567 case TYPE_MATRIX_T:
1568 m = *(GLmatrix **) p;
1569 for (i = 0; i < 16; i++)
1570 params[i] = m->m[transpose[i]];
1571 break;
1572
1573 case TYPE_BIT_0:
1574 case TYPE_BIT_1:
1575 case TYPE_BIT_2:
1576 case TYPE_BIT_3:
1577 case TYPE_BIT_4:
1578 case TYPE_BIT_5:
1579 case TYPE_BIT_6:
1580 case TYPE_BIT_7:
1581 shift = d->type - TYPE_BIT_0;
1582 params[0] = BOOLEAN_TO_FLOAT((*(GLbitfield *) p >> shift) & 1);
1583 break;
1584 }
1585 }
1586
1587 void GLAPIENTRY
1588 _mesa_GetIntegerv(GLenum pname, GLint *params)
1589 {
1590 const struct value_desc *d;
1591 union value v;
1592 GLmatrix *m;
1593 int shift, i;
1594 void *p;
1595
1596 d = find_value("glGetIntegerv", pname, &p, &v);
1597 switch (d->type) {
1598 case TYPE_INVALID:
1599 break;
1600 case TYPE_CONST:
1601 params[0] = d->offset;
1602 break;
1603
1604 case TYPE_FLOAT_8:
1605 params[7] = IROUND(((GLfloat *) p)[7]);
1606 params[6] = IROUND(((GLfloat *) p)[6]);
1607 params[5] = IROUND(((GLfloat *) p)[5]);
1608 params[4] = IROUND(((GLfloat *) p)[4]);
1609 case TYPE_FLOAT_4:
1610 params[3] = IROUND(((GLfloat *) p)[3]);
1611 case TYPE_FLOAT_3:
1612 params[2] = IROUND(((GLfloat *) p)[2]);
1613 case TYPE_FLOAT_2:
1614 params[1] = IROUND(((GLfloat *) p)[1]);
1615 case TYPE_FLOAT:
1616 params[0] = IROUND(((GLfloat *) p)[0]);
1617 break;
1618
1619 case TYPE_FLOATN_4:
1620 params[3] = FLOAT_TO_INT(((GLfloat *) p)[3]);
1621 case TYPE_FLOATN_3:
1622 params[2] = FLOAT_TO_INT(((GLfloat *) p)[2]);
1623 case TYPE_FLOATN_2:
1624 params[1] = FLOAT_TO_INT(((GLfloat *) p)[1]);
1625 case TYPE_FLOATN:
1626 params[0] = FLOAT_TO_INT(((GLfloat *) p)[0]);
1627 break;
1628
1629 case TYPE_DOUBLEN_2:
1630 params[1] = FLOAT_TO_INT(((GLdouble *) p)[1]);
1631 case TYPE_DOUBLEN:
1632 params[0] = FLOAT_TO_INT(((GLdouble *) p)[0]);
1633 break;
1634
1635 case TYPE_INT_4:
1636 params[3] = ((GLint *) p)[3];
1637 case TYPE_INT_3:
1638 params[2] = ((GLint *) p)[2];
1639 case TYPE_INT_2:
1640 case TYPE_ENUM_2:
1641 params[1] = ((GLint *) p)[1];
1642 case TYPE_INT:
1643 case TYPE_ENUM:
1644 params[0] = ((GLint *) p)[0];
1645 break;
1646
1647 case TYPE_INT_N:
1648 for (i = 0; i < v.value_int_n.n; i++)
1649 params[i] = v.value_int_n.ints[i];
1650 break;
1651
1652 case TYPE_INT64:
1653 params[0] = INT64_TO_INT(((GLint64 *) p)[0]);
1654 break;
1655
1656 case TYPE_BOOLEAN:
1657 params[0] = BOOLEAN_TO_INT(*(GLboolean*) p);
1658 break;
1659
1660 case TYPE_MATRIX:
1661 m = *(GLmatrix **) p;
1662 for (i = 0; i < 16; i++)
1663 params[i] = FLOAT_TO_INT(m->m[i]);
1664 break;
1665
1666 case TYPE_MATRIX_T:
1667 m = *(GLmatrix **) p;
1668 for (i = 0; i < 16; i++)
1669 params[i] = FLOAT_TO_INT(m->m[transpose[i]]);
1670 break;
1671
1672 case TYPE_BIT_0:
1673 case TYPE_BIT_1:
1674 case TYPE_BIT_2:
1675 case TYPE_BIT_3:
1676 case TYPE_BIT_4:
1677 case TYPE_BIT_5:
1678 case TYPE_BIT_6:
1679 case TYPE_BIT_7:
1680 shift = d->type - TYPE_BIT_0;
1681 params[0] = (*(GLbitfield *) p >> shift) & 1;
1682 break;
1683 }
1684 }
1685
1686 void GLAPIENTRY
1687 _mesa_GetInteger64v(GLenum pname, GLint64 *params)
1688 {
1689 const struct value_desc *d;
1690 union value v;
1691 GLmatrix *m;
1692 int shift, i;
1693 void *p;
1694
1695 d = find_value("glGetInteger64v", pname, &p, &v);
1696 switch (d->type) {
1697 case TYPE_INVALID:
1698 break;
1699 case TYPE_CONST:
1700 params[0] = d->offset;
1701 break;
1702
1703 case TYPE_FLOAT_8:
1704 params[7] = IROUND64(((GLfloat *) p)[7]);
1705 params[6] = IROUND64(((GLfloat *) p)[6]);
1706 params[5] = IROUND64(((GLfloat *) p)[5]);
1707 params[4] = IROUND64(((GLfloat *) p)[4]);
1708 case TYPE_FLOAT_4:
1709 params[3] = IROUND64(((GLfloat *) p)[3]);
1710 case TYPE_FLOAT_3:
1711 params[2] = IROUND64(((GLfloat *) p)[2]);
1712 case TYPE_FLOAT_2:
1713 params[1] = IROUND64(((GLfloat *) p)[1]);
1714 case TYPE_FLOAT:
1715 params[0] = IROUND64(((GLfloat *) p)[0]);
1716 break;
1717
1718 case TYPE_FLOATN_4:
1719 params[3] = FLOAT_TO_INT(((GLfloat *) p)[3]);
1720 case TYPE_FLOATN_3:
1721 params[2] = FLOAT_TO_INT(((GLfloat *) p)[2]);
1722 case TYPE_FLOATN_2:
1723 params[1] = FLOAT_TO_INT(((GLfloat *) p)[1]);
1724 case TYPE_FLOATN:
1725 params[0] = FLOAT_TO_INT(((GLfloat *) p)[0]);
1726 break;
1727
1728 case TYPE_DOUBLEN_2:
1729 params[1] = FLOAT_TO_INT(((GLdouble *) p)[1]);
1730 case TYPE_DOUBLEN:
1731 params[0] = FLOAT_TO_INT(((GLdouble *) p)[0]);
1732 break;
1733
1734 case TYPE_INT_4:
1735 params[3] = ((GLint *) p)[3];
1736 case TYPE_INT_3:
1737 params[2] = ((GLint *) p)[2];
1738 case TYPE_INT_2:
1739 case TYPE_ENUM_2:
1740 params[1] = ((GLint *) p)[1];
1741 case TYPE_INT:
1742 case TYPE_ENUM:
1743 params[0] = ((GLint *) p)[0];
1744 break;
1745
1746 case TYPE_INT_N:
1747 for (i = 0; i < v.value_int_n.n; i++)
1748 params[i] = INT_TO_BOOLEAN(v.value_int_n.ints[i]);
1749 break;
1750
1751 case TYPE_INT64:
1752 params[0] = ((GLint64 *) p)[0];
1753 break;
1754
1755 case TYPE_BOOLEAN:
1756 params[0] = ((GLboolean*) p)[0];
1757 break;
1758
1759 case TYPE_MATRIX:
1760 m = *(GLmatrix **) p;
1761 for (i = 0; i < 16; i++)
1762 params[i] = FLOAT_TO_INT64(m->m[i]);
1763 break;
1764
1765 case TYPE_MATRIX_T:
1766 m = *(GLmatrix **) p;
1767 for (i = 0; i < 16; i++)
1768 params[i] = FLOAT_TO_INT64(m->m[transpose[i]]);
1769 break;
1770
1771 case TYPE_BIT_0:
1772 case TYPE_BIT_1:
1773 case TYPE_BIT_2:
1774 case TYPE_BIT_3:
1775 case TYPE_BIT_4:
1776 case TYPE_BIT_5:
1777 case TYPE_BIT_6:
1778 case TYPE_BIT_7:
1779 shift = d->type - TYPE_BIT_0;
1780 params[0] = (*(GLbitfield *) p >> shift) & 1;
1781 break;
1782 }
1783 }
1784
1785 void GLAPIENTRY
1786 _mesa_GetDoublev(GLenum pname, GLdouble *params)
1787 {
1788 const struct value_desc *d;
1789 union value v;
1790 GLmatrix *m;
1791 int shift, i;
1792 void *p;
1793
1794 d = find_value("glGetDoublev", pname, &p, &v);
1795 switch (d->type) {
1796 case TYPE_INVALID:
1797 break;
1798 case TYPE_CONST:
1799 params[0] = d->offset;
1800 break;
1801
1802 case TYPE_FLOAT_8:
1803 params[7] = ((GLfloat *) p)[7];
1804 params[6] = ((GLfloat *) p)[6];
1805 params[5] = ((GLfloat *) p)[5];
1806 params[4] = ((GLfloat *) p)[4];
1807 case TYPE_FLOAT_4:
1808 case TYPE_FLOATN_4:
1809 params[3] = ((GLfloat *) p)[3];
1810 case TYPE_FLOAT_3:
1811 case TYPE_FLOATN_3:
1812 params[2] = ((GLfloat *) p)[2];
1813 case TYPE_FLOAT_2:
1814 case TYPE_FLOATN_2:
1815 params[1] = ((GLfloat *) p)[1];
1816 case TYPE_FLOAT:
1817 case TYPE_FLOATN:
1818 params[0] = ((GLfloat *) p)[0];
1819 break;
1820
1821 case TYPE_DOUBLEN_2:
1822 params[1] = ((GLdouble *) p)[1];
1823 case TYPE_DOUBLEN:
1824 params[0] = ((GLdouble *) p)[0];
1825 break;
1826
1827 case TYPE_INT_4:
1828 params[3] = ((GLint *) p)[3];
1829 case TYPE_INT_3:
1830 params[2] = ((GLint *) p)[2];
1831 case TYPE_INT_2:
1832 case TYPE_ENUM_2:
1833 params[1] = ((GLint *) p)[1];
1834 case TYPE_INT:
1835 case TYPE_ENUM:
1836 params[0] = ((GLint *) p)[0];
1837 break;
1838
1839 case TYPE_INT_N:
1840 for (i = 0; i < v.value_int_n.n; i++)
1841 params[i] = v.value_int_n.ints[i];
1842 break;
1843
1844 case TYPE_INT64:
1845 params[0] = (GLdouble) (((GLint64 *) p)[0]);
1846 break;
1847
1848 case TYPE_BOOLEAN:
1849 params[0] = *(GLboolean*) p;
1850 break;
1851
1852 case TYPE_MATRIX:
1853 m = *(GLmatrix **) p;
1854 for (i = 0; i < 16; i++)
1855 params[i] = m->m[i];
1856 break;
1857
1858 case TYPE_MATRIX_T:
1859 m = *(GLmatrix **) p;
1860 for (i = 0; i < 16; i++)
1861 params[i] = m->m[transpose[i]];
1862 break;
1863
1864 case TYPE_BIT_0:
1865 case TYPE_BIT_1:
1866 case TYPE_BIT_2:
1867 case TYPE_BIT_3:
1868 case TYPE_BIT_4:
1869 case TYPE_BIT_5:
1870 case TYPE_BIT_6:
1871 case TYPE_BIT_7:
1872 shift = d->type - TYPE_BIT_0;
1873 params[0] = (*(GLbitfield *) p >> shift) & 1;
1874 break;
1875 }
1876 }
1877
1878 /**
1879 * Convert a GL texture binding enum such as GL_TEXTURE_BINDING_2D
1880 * into the corresponding Mesa texture target index.
1881 * \return TEXTURE_x_INDEX or -1 if binding is invalid
1882 */
1883 static int
1884 tex_binding_to_index(const struct gl_context *ctx, GLenum binding)
1885 {
1886 switch (binding) {
1887 case GL_TEXTURE_BINDING_1D:
1888 return _mesa_is_desktop_gl(ctx) ? TEXTURE_1D_INDEX : -1;
1889 case GL_TEXTURE_BINDING_2D:
1890 return TEXTURE_2D_INDEX;
1891 case GL_TEXTURE_BINDING_3D:
1892 return ctx->API != API_OPENGLES ? TEXTURE_3D_INDEX : -1;
1893 case GL_TEXTURE_BINDING_CUBE_MAP:
1894 return ctx->Extensions.ARB_texture_cube_map
1895 ? TEXTURE_CUBE_INDEX : -1;
1896 case GL_TEXTURE_BINDING_RECTANGLE:
1897 return _mesa_is_desktop_gl(ctx) && ctx->Extensions.NV_texture_rectangle
1898 ? TEXTURE_RECT_INDEX : -1;
1899 case GL_TEXTURE_BINDING_1D_ARRAY:
1900 return _mesa_is_desktop_gl(ctx) && ctx->Extensions.EXT_texture_array
1901 ? TEXTURE_1D_ARRAY_INDEX : -1;
1902 case GL_TEXTURE_BINDING_2D_ARRAY:
1903 return (_mesa_is_desktop_gl(ctx) && ctx->Extensions.EXT_texture_array)
1904 || _mesa_is_gles3(ctx)
1905 ? TEXTURE_2D_ARRAY_INDEX : -1;
1906 case GL_TEXTURE_BINDING_BUFFER:
1907 return (_mesa_has_ARB_texture_buffer_object(ctx) ||
1908 _mesa_has_OES_texture_buffer(ctx)) ?
1909 TEXTURE_BUFFER_INDEX : -1;
1910 case GL_TEXTURE_BINDING_CUBE_MAP_ARRAY:
1911 return _mesa_has_texture_cube_map_array(ctx)
1912 ? TEXTURE_CUBE_ARRAY_INDEX : -1;
1913 case GL_TEXTURE_BINDING_2D_MULTISAMPLE:
1914 return _mesa_is_desktop_gl(ctx) && ctx->Extensions.ARB_texture_multisample
1915 ? TEXTURE_2D_MULTISAMPLE_INDEX : -1;
1916 case GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY:
1917 return _mesa_is_desktop_gl(ctx) && ctx->Extensions.ARB_texture_multisample
1918 ? TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX : -1;
1919 default:
1920 return -1;
1921 }
1922 }
1923
1924 static enum value_type
1925 find_value_indexed(const char *func, GLenum pname, GLuint index, union value *v)
1926 {
1927 GET_CURRENT_CONTEXT(ctx);
1928
1929 switch (pname) {
1930
1931 case GL_BLEND:
1932 if (index >= ctx->Const.MaxDrawBuffers)
1933 goto invalid_value;
1934 if (!ctx->Extensions.EXT_draw_buffers2)
1935 goto invalid_enum;
1936 v->value_int = (ctx->Color.BlendEnabled >> index) & 1;
1937 return TYPE_INT;
1938
1939 case GL_BLEND_SRC:
1940 /* fall-through */
1941 case GL_BLEND_SRC_RGB:
1942 if (index >= ctx->Const.MaxDrawBuffers)
1943 goto invalid_value;
1944 if (!ctx->Extensions.ARB_draw_buffers_blend)
1945 goto invalid_enum;
1946 v->value_int = ctx->Color.Blend[index].SrcRGB;
1947 return TYPE_INT;
1948 case GL_BLEND_SRC_ALPHA:
1949 if (index >= ctx->Const.MaxDrawBuffers)
1950 goto invalid_value;
1951 if (!ctx->Extensions.ARB_draw_buffers_blend)
1952 goto invalid_enum;
1953 v->value_int = ctx->Color.Blend[index].SrcA;
1954 return TYPE_INT;
1955 case GL_BLEND_DST:
1956 /* fall-through */
1957 case GL_BLEND_DST_RGB:
1958 if (index >= ctx->Const.MaxDrawBuffers)
1959 goto invalid_value;
1960 if (!ctx->Extensions.ARB_draw_buffers_blend)
1961 goto invalid_enum;
1962 v->value_int = ctx->Color.Blend[index].DstRGB;
1963 return TYPE_INT;
1964 case GL_BLEND_DST_ALPHA:
1965 if (index >= ctx->Const.MaxDrawBuffers)
1966 goto invalid_value;
1967 if (!ctx->Extensions.ARB_draw_buffers_blend)
1968 goto invalid_enum;
1969 v->value_int = ctx->Color.Blend[index].DstA;
1970 return TYPE_INT;
1971 case GL_BLEND_EQUATION_RGB:
1972 if (index >= ctx->Const.MaxDrawBuffers)
1973 goto invalid_value;
1974 if (!ctx->Extensions.ARB_draw_buffers_blend)
1975 goto invalid_enum;
1976 v->value_int = ctx->Color.Blend[index].EquationRGB;
1977 return TYPE_INT;
1978 case GL_BLEND_EQUATION_ALPHA:
1979 if (index >= ctx->Const.MaxDrawBuffers)
1980 goto invalid_value;
1981 if (!ctx->Extensions.ARB_draw_buffers_blend)
1982 goto invalid_enum;
1983 v->value_int = ctx->Color.Blend[index].EquationA;
1984 return TYPE_INT;
1985
1986 case GL_COLOR_WRITEMASK:
1987 if (index >= ctx->Const.MaxDrawBuffers)
1988 goto invalid_value;
1989 if (!ctx->Extensions.EXT_draw_buffers2)
1990 goto invalid_enum;
1991 v->value_int_4[0] = ctx->Color.ColorMask[index][RCOMP] ? 1 : 0;
1992 v->value_int_4[1] = ctx->Color.ColorMask[index][GCOMP] ? 1 : 0;
1993 v->value_int_4[2] = ctx->Color.ColorMask[index][BCOMP] ? 1 : 0;
1994 v->value_int_4[3] = ctx->Color.ColorMask[index][ACOMP] ? 1 : 0;
1995 return TYPE_INT_4;
1996
1997 case GL_SCISSOR_BOX:
1998 if (index >= ctx->Const.MaxViewports)
1999 goto invalid_value;
2000 v->value_int_4[0] = ctx->Scissor.ScissorArray[index].X;
2001 v->value_int_4[1] = ctx->Scissor.ScissorArray[index].Y;
2002 v->value_int_4[2] = ctx->Scissor.ScissorArray[index].Width;
2003 v->value_int_4[3] = ctx->Scissor.ScissorArray[index].Height;
2004 return TYPE_INT_4;
2005
2006 case GL_WINDOW_RECTANGLE_EXT:
2007 if (!ctx->Extensions.EXT_window_rectangles)
2008 goto invalid_enum;
2009 if (index >= ctx->Const.MaxWindowRectangles)
2010 goto invalid_value;
2011 v->value_int_4[0] = ctx->Scissor.WindowRects[index].X;
2012 v->value_int_4[1] = ctx->Scissor.WindowRects[index].Y;
2013 v->value_int_4[2] = ctx->Scissor.WindowRects[index].Width;
2014 v->value_int_4[3] = ctx->Scissor.WindowRects[index].Height;
2015 return TYPE_INT_4;
2016
2017 case GL_VIEWPORT:
2018 if (index >= ctx->Const.MaxViewports)
2019 goto invalid_value;
2020 v->value_float_4[0] = ctx->ViewportArray[index].X;
2021 v->value_float_4[1] = ctx->ViewportArray[index].Y;
2022 v->value_float_4[2] = ctx->ViewportArray[index].Width;
2023 v->value_float_4[3] = ctx->ViewportArray[index].Height;
2024 return TYPE_FLOAT_4;
2025
2026 case GL_DEPTH_RANGE:
2027 if (index >= ctx->Const.MaxViewports)
2028 goto invalid_value;
2029 v->value_double_2[0] = ctx->ViewportArray[index].Near;
2030 v->value_double_2[1] = ctx->ViewportArray[index].Far;
2031 return TYPE_DOUBLEN_2;
2032
2033 case GL_TRANSFORM_FEEDBACK_BUFFER_START:
2034 if (index >= ctx->Const.MaxTransformFeedbackBuffers)
2035 goto invalid_value;
2036 if (!ctx->Extensions.EXT_transform_feedback)
2037 goto invalid_enum;
2038 v->value_int64 = ctx->TransformFeedback.CurrentObject->Offset[index];
2039 return TYPE_INT64;
2040
2041 case GL_TRANSFORM_FEEDBACK_BUFFER_SIZE:
2042 if (index >= ctx->Const.MaxTransformFeedbackBuffers)
2043 goto invalid_value;
2044 if (!ctx->Extensions.EXT_transform_feedback)
2045 goto invalid_enum;
2046 v->value_int64
2047 = ctx->TransformFeedback.CurrentObject->RequestedSize[index];
2048 return TYPE_INT64;
2049
2050 case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING:
2051 if (index >= ctx->Const.MaxTransformFeedbackBuffers)
2052 goto invalid_value;
2053 if (!ctx->Extensions.EXT_transform_feedback)
2054 goto invalid_enum;
2055 v->value_int = ctx->TransformFeedback.CurrentObject->BufferNames[index];
2056 return TYPE_INT;
2057
2058 case GL_UNIFORM_BUFFER_BINDING:
2059 if (index >= ctx->Const.MaxUniformBufferBindings)
2060 goto invalid_value;
2061 if (!ctx->Extensions.ARB_uniform_buffer_object)
2062 goto invalid_enum;
2063 v->value_int = ctx->UniformBufferBindings[index].BufferObject->Name;
2064 return TYPE_INT;
2065
2066 case GL_UNIFORM_BUFFER_START:
2067 if (index >= ctx->Const.MaxUniformBufferBindings)
2068 goto invalid_value;
2069 if (!ctx->Extensions.ARB_uniform_buffer_object)
2070 goto invalid_enum;
2071 v->value_int = ctx->UniformBufferBindings[index].Offset < 0 ? 0 :
2072 ctx->UniformBufferBindings[index].Offset;
2073 return TYPE_INT;
2074
2075 case GL_UNIFORM_BUFFER_SIZE:
2076 if (index >= ctx->Const.MaxUniformBufferBindings)
2077 goto invalid_value;
2078 if (!ctx->Extensions.ARB_uniform_buffer_object)
2079 goto invalid_enum;
2080 v->value_int = ctx->UniformBufferBindings[index].Size < 0 ? 0 :
2081 ctx->UniformBufferBindings[index].Size;
2082 return TYPE_INT;
2083
2084 /* ARB_shader_storage_buffer_object */
2085 case GL_SHADER_STORAGE_BUFFER_BINDING:
2086 if (!ctx->Extensions.ARB_shader_storage_buffer_object)
2087 goto invalid_enum;
2088 if (index >= ctx->Const.MaxShaderStorageBufferBindings)
2089 goto invalid_value;
2090 v->value_int = ctx->ShaderStorageBufferBindings[index].BufferObject->Name;
2091 return TYPE_INT;
2092
2093 case GL_SHADER_STORAGE_BUFFER_START:
2094 if (!ctx->Extensions.ARB_shader_storage_buffer_object)
2095 goto invalid_enum;
2096 if (index >= ctx->Const.MaxShaderStorageBufferBindings)
2097 goto invalid_value;
2098 v->value_int = ctx->ShaderStorageBufferBindings[index].Offset < 0 ? 0 :
2099 ctx->ShaderStorageBufferBindings[index].Offset;
2100 return TYPE_INT;
2101
2102 case GL_SHADER_STORAGE_BUFFER_SIZE:
2103 if (!ctx->Extensions.ARB_shader_storage_buffer_object)
2104 goto invalid_enum;
2105 if (index >= ctx->Const.MaxShaderStorageBufferBindings)
2106 goto invalid_value;
2107 v->value_int = ctx->ShaderStorageBufferBindings[index].Size < 0 ? 0 :
2108 ctx->ShaderStorageBufferBindings[index].Size;
2109 return TYPE_INT;
2110
2111 /* ARB_texture_multisample / GL3.2 */
2112 case GL_SAMPLE_MASK_VALUE:
2113 if (index != 0)
2114 goto invalid_value;
2115 if (!ctx->Extensions.ARB_texture_multisample)
2116 goto invalid_enum;
2117 v->value_int = ctx->Multisample.SampleMaskValue;
2118 return TYPE_INT;
2119
2120 case GL_ATOMIC_COUNTER_BUFFER_BINDING:
2121 if (!ctx->Extensions.ARB_shader_atomic_counters)
2122 goto invalid_enum;
2123 if (index >= ctx->Const.MaxAtomicBufferBindings)
2124 goto invalid_value;
2125 v->value_int = ctx->AtomicBufferBindings[index].BufferObject->Name;
2126 return TYPE_INT;
2127
2128 case GL_ATOMIC_COUNTER_BUFFER_START:
2129 if (!ctx->Extensions.ARB_shader_atomic_counters)
2130 goto invalid_enum;
2131 if (index >= ctx->Const.MaxAtomicBufferBindings)
2132 goto invalid_value;
2133 v->value_int64 = ctx->AtomicBufferBindings[index].Offset;
2134 return TYPE_INT64;
2135
2136 case GL_ATOMIC_COUNTER_BUFFER_SIZE:
2137 if (!ctx->Extensions.ARB_shader_atomic_counters)
2138 goto invalid_enum;
2139 if (index >= ctx->Const.MaxAtomicBufferBindings)
2140 goto invalid_value;
2141 v->value_int64 = ctx->AtomicBufferBindings[index].Size;
2142 return TYPE_INT64;
2143
2144 case GL_VERTEX_BINDING_DIVISOR:
2145 if ((!_mesa_is_desktop_gl(ctx) || !ctx->Extensions.ARB_instanced_arrays) &&
2146 !_mesa_is_gles31(ctx))
2147 goto invalid_enum;
2148 if (index >= ctx->Const.Program[MESA_SHADER_VERTEX].MaxAttribs)
2149 goto invalid_value;
2150 v->value_int = ctx->Array.VAO->VertexBinding[VERT_ATTRIB_GENERIC(index)].InstanceDivisor;
2151 return TYPE_INT;
2152
2153 case GL_VERTEX_BINDING_OFFSET:
2154 if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles31(ctx))
2155 goto invalid_enum;
2156 if (index >= ctx->Const.Program[MESA_SHADER_VERTEX].MaxAttribs)
2157 goto invalid_value;
2158 v->value_int = ctx->Array.VAO->VertexBinding[VERT_ATTRIB_GENERIC(index)].Offset;
2159 return TYPE_INT;
2160
2161 case GL_VERTEX_BINDING_STRIDE:
2162 if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles31(ctx))
2163 goto invalid_enum;
2164 if (index >= ctx->Const.Program[MESA_SHADER_VERTEX].MaxAttribs)
2165 goto invalid_value;
2166 v->value_int = ctx->Array.VAO->VertexBinding[VERT_ATTRIB_GENERIC(index)].Stride;
2167 return TYPE_INT;
2168
2169 case GL_VERTEX_BINDING_BUFFER:
2170 if (ctx->API == API_OPENGLES2 && ctx->Version < 31)
2171 goto invalid_enum;
2172 if (index >= ctx->Const.Program[MESA_SHADER_VERTEX].MaxAttribs)
2173 goto invalid_value;
2174 v->value_int = ctx->Array.VAO->VertexBinding[VERT_ATTRIB_GENERIC(index)].BufferObj->Name;
2175 return TYPE_INT;
2176
2177 /* ARB_shader_image_load_store */
2178 case GL_IMAGE_BINDING_NAME: {
2179 struct gl_texture_object *t;
2180
2181 if (!ctx->Extensions.ARB_shader_image_load_store)
2182 goto invalid_enum;
2183 if (index >= ctx->Const.MaxImageUnits)
2184 goto invalid_value;
2185
2186 t = ctx->ImageUnits[index].TexObj;
2187 v->value_int = (t ? t->Name : 0);
2188 return TYPE_INT;
2189 }
2190
2191 case GL_IMAGE_BINDING_LEVEL:
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 v->value_int = ctx->ImageUnits[index].Level;
2198 return TYPE_INT;
2199
2200 case GL_IMAGE_BINDING_LAYERED:
2201 if (!ctx->Extensions.ARB_shader_image_load_store)
2202 goto invalid_enum;
2203 if (index >= ctx->Const.MaxImageUnits)
2204 goto invalid_value;
2205
2206 v->value_int = ctx->ImageUnits[index].Layered;
2207 return TYPE_INT;
2208
2209 case GL_IMAGE_BINDING_LAYER:
2210 if (!ctx->Extensions.ARB_shader_image_load_store)
2211 goto invalid_enum;
2212 if (index >= ctx->Const.MaxImageUnits)
2213 goto invalid_value;
2214
2215 v->value_int = ctx->ImageUnits[index].Layer;
2216 return TYPE_INT;
2217
2218 case GL_IMAGE_BINDING_ACCESS:
2219 if (!ctx->Extensions.ARB_shader_image_load_store)
2220 goto invalid_enum;
2221 if (index >= ctx->Const.MaxImageUnits)
2222 goto invalid_value;
2223
2224 v->value_int = ctx->ImageUnits[index].Access;
2225 return TYPE_INT;
2226
2227 case GL_IMAGE_BINDING_FORMAT:
2228 if (!ctx->Extensions.ARB_shader_image_load_store)
2229 goto invalid_enum;
2230 if (index >= ctx->Const.MaxImageUnits)
2231 goto invalid_value;
2232
2233 v->value_int = ctx->ImageUnits[index].Format;
2234 return TYPE_INT;
2235
2236 /* ARB_direct_state_access */
2237 case GL_TEXTURE_BINDING_1D:
2238 case GL_TEXTURE_BINDING_1D_ARRAY:
2239 case GL_TEXTURE_BINDING_2D:
2240 case GL_TEXTURE_BINDING_2D_ARRAY:
2241 case GL_TEXTURE_BINDING_2D_MULTISAMPLE:
2242 case GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY:
2243 case GL_TEXTURE_BINDING_3D:
2244 case GL_TEXTURE_BINDING_BUFFER:
2245 case GL_TEXTURE_BINDING_CUBE_MAP:
2246 case GL_TEXTURE_BINDING_CUBE_MAP_ARRAY:
2247 case GL_TEXTURE_BINDING_RECTANGLE: {
2248 int target;
2249
2250 if (ctx->API != API_OPENGL_CORE)
2251 goto invalid_enum;
2252 target = tex_binding_to_index(ctx, pname);
2253 if (target < 0)
2254 goto invalid_enum;
2255 if (index >= _mesa_max_tex_unit(ctx))
2256 goto invalid_value;
2257
2258 v->value_int = ctx->Texture.Unit[index].CurrentTex[target]->Name;
2259 return TYPE_INT;
2260 }
2261
2262 case GL_SAMPLER_BINDING: {
2263 struct gl_sampler_object *samp;
2264
2265 if (ctx->API != API_OPENGL_CORE)
2266 goto invalid_enum;
2267 if (index >= _mesa_max_tex_unit(ctx))
2268 goto invalid_value;
2269
2270 samp = ctx->Texture.Unit[index].Sampler;
2271 v->value_int = samp ? samp->Name : 0;
2272 return TYPE_INT;
2273 }
2274
2275 case GL_MAX_COMPUTE_WORK_GROUP_COUNT:
2276 if (!_mesa_has_compute_shaders(ctx))
2277 goto invalid_enum;
2278 if (index >= 3)
2279 goto invalid_value;
2280 v->value_int = ctx->Const.MaxComputeWorkGroupCount[index];
2281 return TYPE_INT;
2282
2283 case GL_MAX_COMPUTE_WORK_GROUP_SIZE:
2284 if (!_mesa_has_compute_shaders(ctx))
2285 goto invalid_enum;
2286 if (index >= 3)
2287 goto invalid_value;
2288 v->value_int = ctx->Const.MaxComputeWorkGroupSize[index];
2289 return TYPE_INT;
2290 }
2291
2292 invalid_enum:
2293 _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func,
2294 _mesa_enum_to_string(pname));
2295 return TYPE_INVALID;
2296 invalid_value:
2297 _mesa_error(ctx, GL_INVALID_VALUE, "%s(pname=%s)", func,
2298 _mesa_enum_to_string(pname));
2299 return TYPE_INVALID;
2300 }
2301
2302 void GLAPIENTRY
2303 _mesa_GetBooleani_v( GLenum pname, GLuint index, GLboolean *params )
2304 {
2305 union value v;
2306 enum value_type type =
2307 find_value_indexed("glGetBooleani_v", pname, index, &v);
2308
2309 switch (type) {
2310 case TYPE_INT:
2311 params[0] = INT_TO_BOOLEAN(v.value_int);
2312 break;
2313 case TYPE_INT_4:
2314 params[0] = INT_TO_BOOLEAN(v.value_int_4[0]);
2315 params[1] = INT_TO_BOOLEAN(v.value_int_4[1]);
2316 params[2] = INT_TO_BOOLEAN(v.value_int_4[2]);
2317 params[3] = INT_TO_BOOLEAN(v.value_int_4[3]);
2318 break;
2319 case TYPE_INT64:
2320 params[0] = INT64_TO_BOOLEAN(v.value_int64);
2321 break;
2322 default:
2323 ; /* nothing - GL error was recorded */
2324 }
2325 }
2326
2327 void GLAPIENTRY
2328 _mesa_GetIntegeri_v( GLenum pname, GLuint index, GLint *params )
2329 {
2330 union value v;
2331 enum value_type type =
2332 find_value_indexed("glGetIntegeri_v", pname, index, &v);
2333
2334 switch (type) {
2335 case TYPE_FLOAT_4:
2336 case TYPE_FLOATN_4:
2337 params[3] = IROUND(v.value_float_4[3]);
2338 case TYPE_FLOAT_3:
2339 case TYPE_FLOATN_3:
2340 params[2] = IROUND(v.value_float_4[2]);
2341 case TYPE_FLOAT_2:
2342 case TYPE_FLOATN_2:
2343 params[1] = IROUND(v.value_float_4[1]);
2344 case TYPE_FLOAT:
2345 case TYPE_FLOATN:
2346 params[0] = IROUND(v.value_float_4[0]);
2347 break;
2348
2349 case TYPE_DOUBLEN_2:
2350 params[1] = IROUND(v.value_double_2[1]);
2351 case TYPE_DOUBLEN:
2352 params[0] = IROUND(v.value_double_2[0]);
2353 break;
2354
2355 case TYPE_INT:
2356 params[0] = v.value_int;
2357 break;
2358 case TYPE_INT_4:
2359 params[0] = v.value_int_4[0];
2360 params[1] = v.value_int_4[1];
2361 params[2] = v.value_int_4[2];
2362 params[3] = v.value_int_4[3];
2363 break;
2364 case TYPE_INT64:
2365 params[0] = INT64_TO_INT(v.value_int64);
2366 break;
2367 default:
2368 ; /* nothing - GL error was recorded */
2369 }
2370 }
2371
2372 void GLAPIENTRY
2373 _mesa_GetInteger64i_v( GLenum pname, GLuint index, GLint64 *params )
2374 {
2375 union value v;
2376 enum value_type type =
2377 find_value_indexed("glGetInteger64i_v", pname, index, &v);
2378
2379 switch (type) {
2380 case TYPE_INT:
2381 params[0] = v.value_int;
2382 break;
2383 case TYPE_INT_4:
2384 params[0] = v.value_int_4[0];
2385 params[1] = v.value_int_4[1];
2386 params[2] = v.value_int_4[2];
2387 params[3] = v.value_int_4[3];
2388 break;
2389 case TYPE_INT64:
2390 params[0] = v.value_int64;
2391 break;
2392 default:
2393 ; /* nothing - GL error was recorded */
2394 }
2395 }
2396
2397 void GLAPIENTRY
2398 _mesa_GetFloati_v(GLenum pname, GLuint index, GLfloat *params)
2399 {
2400 int i;
2401 GLmatrix *m;
2402 union value v;
2403 enum value_type type =
2404 find_value_indexed("glGetFloati_v", pname, index, &v);
2405
2406 switch (type) {
2407 case TYPE_FLOAT_4:
2408 case TYPE_FLOATN_4:
2409 params[3] = v.value_float_4[3];
2410 case TYPE_FLOAT_3:
2411 case TYPE_FLOATN_3:
2412 params[2] = v.value_float_4[2];
2413 case TYPE_FLOAT_2:
2414 case TYPE_FLOATN_2:
2415 params[1] = v.value_float_4[1];
2416 case TYPE_FLOAT:
2417 case TYPE_FLOATN:
2418 params[0] = v.value_float_4[0];
2419 break;
2420
2421 case TYPE_DOUBLEN_2:
2422 params[1] = (GLfloat) v.value_double_2[1];
2423 case TYPE_DOUBLEN:
2424 params[0] = (GLfloat) v.value_double_2[0];
2425 break;
2426
2427 case TYPE_INT_4:
2428 params[3] = (GLfloat) v.value_int_4[3];
2429 case TYPE_INT_3:
2430 params[2] = (GLfloat) v.value_int_4[2];
2431 case TYPE_INT_2:
2432 case TYPE_ENUM_2:
2433 params[1] = (GLfloat) v.value_int_4[1];
2434 case TYPE_INT:
2435 case TYPE_ENUM:
2436 params[0] = (GLfloat) v.value_int_4[0];
2437 break;
2438
2439 case TYPE_INT_N:
2440 for (i = 0; i < v.value_int_n.n; i++)
2441 params[i] = INT_TO_FLOAT(v.value_int_n.ints[i]);
2442 break;
2443
2444 case TYPE_INT64:
2445 params[0] = (GLfloat) v.value_int64;
2446 break;
2447
2448 case TYPE_BOOLEAN:
2449 params[0] = BOOLEAN_TO_FLOAT(v.value_bool);
2450 break;
2451
2452 case TYPE_MATRIX:
2453 m = *(GLmatrix **) &v;
2454 for (i = 0; i < 16; i++)
2455 params[i] = m->m[i];
2456 break;
2457
2458 case TYPE_MATRIX_T:
2459 m = *(GLmatrix **) &v;
2460 for (i = 0; i < 16; i++)
2461 params[i] = m->m[transpose[i]];
2462 break;
2463
2464 default:
2465 ;
2466 }
2467 }
2468
2469 void GLAPIENTRY
2470 _mesa_GetDoublei_v(GLenum pname, GLuint index, GLdouble *params)
2471 {
2472 int i;
2473 GLmatrix *m;
2474 union value v;
2475 enum value_type type =
2476 find_value_indexed("glGetDoublei_v", pname, index, &v);
2477
2478 switch (type) {
2479 case TYPE_FLOAT_4:
2480 case TYPE_FLOATN_4:
2481 params[3] = (GLdouble) v.value_float_4[3];
2482 case TYPE_FLOAT_3:
2483 case TYPE_FLOATN_3:
2484 params[2] = (GLdouble) v.value_float_4[2];
2485 case TYPE_FLOAT_2:
2486 case TYPE_FLOATN_2:
2487 params[1] = (GLdouble) v.value_float_4[1];
2488 case TYPE_FLOAT:
2489 case TYPE_FLOATN:
2490 params[0] = (GLdouble) v.value_float_4[0];
2491 break;
2492
2493 case TYPE_DOUBLEN_2:
2494 params[1] = v.value_double_2[1];
2495 case TYPE_DOUBLEN:
2496 params[0] = v.value_double_2[0];
2497 break;
2498
2499 case TYPE_INT_4:
2500 params[3] = (GLdouble) v.value_int_4[3];
2501 case TYPE_INT_3:
2502 params[2] = (GLdouble) v.value_int_4[2];
2503 case TYPE_INT_2:
2504 case TYPE_ENUM_2:
2505 params[1] = (GLdouble) v.value_int_4[1];
2506 case TYPE_INT:
2507 case TYPE_ENUM:
2508 params[0] = (GLdouble) v.value_int_4[0];
2509 break;
2510
2511 case TYPE_INT_N:
2512 for (i = 0; i < v.value_int_n.n; i++)
2513 params[i] = (GLdouble) INT_TO_FLOAT(v.value_int_n.ints[i]);
2514 break;
2515
2516 case TYPE_INT64:
2517 params[0] = (GLdouble) v.value_int64;
2518 break;
2519
2520 case TYPE_BOOLEAN:
2521 params[0] = (GLdouble) BOOLEAN_TO_FLOAT(v.value_bool);
2522 break;
2523
2524 case TYPE_MATRIX:
2525 m = *(GLmatrix **) &v;
2526 for (i = 0; i < 16; i++)
2527 params[i] = (GLdouble) m->m[i];
2528 break;
2529
2530 case TYPE_MATRIX_T:
2531 m = *(GLmatrix **) &v;
2532 for (i = 0; i < 16; i++)
2533 params[i] = (GLdouble) m->m[transpose[i]];
2534 break;
2535
2536 default:
2537 ;
2538 }
2539 }
2540
2541 void GLAPIENTRY
2542 _mesa_GetFixedv(GLenum pname, GLfixed *params)
2543 {
2544 const struct value_desc *d;
2545 union value v;
2546 GLmatrix *m;
2547 int shift, i;
2548 void *p;
2549
2550 d = find_value("glGetDoublev", pname, &p, &v);
2551 switch (d->type) {
2552 case TYPE_INVALID:
2553 break;
2554 case TYPE_CONST:
2555 params[0] = INT_TO_FIXED(d->offset);
2556 break;
2557
2558 case TYPE_FLOAT_4:
2559 case TYPE_FLOATN_4:
2560 params[3] = FLOAT_TO_FIXED(((GLfloat *) p)[3]);
2561 case TYPE_FLOAT_3:
2562 case TYPE_FLOATN_3:
2563 params[2] = FLOAT_TO_FIXED(((GLfloat *) p)[2]);
2564 case TYPE_FLOAT_2:
2565 case TYPE_FLOATN_2:
2566 params[1] = FLOAT_TO_FIXED(((GLfloat *) p)[1]);
2567 case TYPE_FLOAT:
2568 case TYPE_FLOATN:
2569 params[0] = FLOAT_TO_FIXED(((GLfloat *) p)[0]);
2570 break;
2571
2572 case TYPE_DOUBLEN_2:
2573 params[1] = FLOAT_TO_FIXED(((GLdouble *) p)[1]);
2574 case TYPE_DOUBLEN:
2575 params[0] = FLOAT_TO_FIXED(((GLdouble *) p)[0]);
2576 break;
2577
2578 case TYPE_INT_4:
2579 params[3] = INT_TO_FIXED(((GLint *) p)[3]);
2580 case TYPE_INT_3:
2581 params[2] = INT_TO_FIXED(((GLint *) p)[2]);
2582 case TYPE_INT_2:
2583 case TYPE_ENUM_2:
2584 params[1] = INT_TO_FIXED(((GLint *) p)[1]);
2585 case TYPE_INT:
2586 case TYPE_ENUM:
2587 params[0] = INT_TO_FIXED(((GLint *) p)[0]);
2588 break;
2589
2590 case TYPE_INT_N:
2591 for (i = 0; i < v.value_int_n.n; i++)
2592 params[i] = INT_TO_FIXED(v.value_int_n.ints[i]);
2593 break;
2594
2595 case TYPE_INT64:
2596 params[0] = ((GLint64 *) p)[0];
2597 break;
2598
2599 case TYPE_BOOLEAN:
2600 params[0] = BOOLEAN_TO_FIXED(((GLboolean*) p)[0]);
2601 break;
2602
2603 case TYPE_MATRIX:
2604 m = *(GLmatrix **) p;
2605 for (i = 0; i < 16; i++)
2606 params[i] = FLOAT_TO_FIXED(m->m[i]);
2607 break;
2608
2609 case TYPE_MATRIX_T:
2610 m = *(GLmatrix **) p;
2611 for (i = 0; i < 16; i++)
2612 params[i] = FLOAT_TO_FIXED(m->m[transpose[i]]);
2613 break;
2614
2615 case TYPE_BIT_0:
2616 case TYPE_BIT_1:
2617 case TYPE_BIT_2:
2618 case TYPE_BIT_3:
2619 case TYPE_BIT_4:
2620 case TYPE_BIT_5:
2621 case TYPE_BIT_6:
2622 case TYPE_BIT_7:
2623 shift = d->type - TYPE_BIT_0;
2624 params[0] = BOOLEAN_TO_FIXED((*(GLbitfield *) p >> shift) & 1);
2625 break;
2626 }
2627 }