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Merge remote-tracking branch 'public/master' into vulkan
[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_FLOATN,
115 TYPE_FLOATN_2,
116 TYPE_FLOATN_3,
117 TYPE_FLOATN_4,
118 TYPE_DOUBLEN,
119 TYPE_DOUBLEN_2,
120 TYPE_MATRIX,
121 TYPE_MATRIX_T,
122 TYPE_CONST
123 };
124
125 enum value_location {
126 LOC_BUFFER,
127 LOC_CONTEXT,
128 LOC_ARRAY,
129 LOC_TEXUNIT,
130 LOC_CUSTOM
131 };
132
133 enum value_extra {
134 EXTRA_END = 0x8000,
135 EXTRA_VERSION_30,
136 EXTRA_VERSION_31,
137 EXTRA_VERSION_32,
138 EXTRA_VERSION_40,
139 EXTRA_API_GL,
140 EXTRA_API_GL_CORE,
141 EXTRA_API_ES2,
142 EXTRA_API_ES3,
143 EXTRA_API_ES31,
144 EXTRA_NEW_BUFFERS,
145 EXTRA_NEW_FRAG_CLAMP,
146 EXTRA_VALID_DRAW_BUFFER,
147 EXTRA_VALID_TEXTURE_UNIT,
148 EXTRA_VALID_CLIP_DISTANCE,
149 EXTRA_FLUSH_CURRENT,
150 EXTRA_GLSL_130,
151 EXTRA_EXT_UBO_GS,
152 EXTRA_EXT_ATOMICS_GS,
153 EXTRA_EXT_SHADER_IMAGE_GS,
154 EXTRA_EXT_ATOMICS_TESS,
155 EXTRA_EXT_SHADER_IMAGE_TESS,
156 EXTRA_EXT_SSBO_GS,
157 EXTRA_EXT_FB_NO_ATTACH_GS,
158 EXTRA_EXT_ES_GS,
159 };
160
161 #define NO_EXTRA NULL
162 #define NO_OFFSET 0
163
164 struct value_desc {
165 GLenum pname;
166 GLubyte location; /**< enum value_location */
167 GLubyte type; /**< enum value_type */
168 int offset;
169 const int *extra;
170 };
171
172 union value {
173 GLfloat value_float;
174 GLfloat value_float_4[4];
175 GLdouble value_double_2[2];
176 GLmatrix *value_matrix;
177 GLint value_int;
178 GLint value_int_4[4];
179 GLint64 value_int64;
180 GLenum value_enum;
181
182 /* Sigh, see GL_COMPRESSED_TEXTURE_FORMATS_ARB handling */
183 struct {
184 GLint n, ints[100];
185 } value_int_n;
186 GLboolean value_bool;
187 };
188
189 #define BUFFER_FIELD(field, type) \
190 LOC_BUFFER, type, offsetof(struct gl_framebuffer, field)
191 #define CONTEXT_FIELD(field, type) \
192 LOC_CONTEXT, type, offsetof(struct gl_context, field)
193 #define ARRAY_FIELD(field, type) \
194 LOC_ARRAY, type, offsetof(struct gl_vertex_array_object, field)
195 #undef CONST /* already defined through windows.h */
196 #define CONST(value) \
197 LOC_CONTEXT, TYPE_CONST, value
198
199 #define BUFFER_INT(field) BUFFER_FIELD(field, TYPE_INT)
200 #define BUFFER_ENUM(field) BUFFER_FIELD(field, TYPE_ENUM)
201 #define BUFFER_BOOL(field) BUFFER_FIELD(field, TYPE_BOOLEAN)
202
203 #define CONTEXT_INT(field) CONTEXT_FIELD(field, TYPE_INT)
204 #define CONTEXT_INT2(field) CONTEXT_FIELD(field, TYPE_INT_2)
205 #define CONTEXT_INT64(field) CONTEXT_FIELD(field, TYPE_INT64)
206 #define CONTEXT_ENUM(field) CONTEXT_FIELD(field, TYPE_ENUM)
207 #define CONTEXT_ENUM2(field) CONTEXT_FIELD(field, TYPE_ENUM_2)
208 #define CONTEXT_BOOL(field) CONTEXT_FIELD(field, TYPE_BOOLEAN)
209 #define CONTEXT_BIT0(field) CONTEXT_FIELD(field, TYPE_BIT_0)
210 #define CONTEXT_BIT1(field) CONTEXT_FIELD(field, TYPE_BIT_1)
211 #define CONTEXT_BIT2(field) CONTEXT_FIELD(field, TYPE_BIT_2)
212 #define CONTEXT_BIT3(field) CONTEXT_FIELD(field, TYPE_BIT_3)
213 #define CONTEXT_BIT4(field) CONTEXT_FIELD(field, TYPE_BIT_4)
214 #define CONTEXT_BIT5(field) CONTEXT_FIELD(field, TYPE_BIT_5)
215 #define CONTEXT_BIT6(field) CONTEXT_FIELD(field, TYPE_BIT_6)
216 #define CONTEXT_BIT7(field) CONTEXT_FIELD(field, TYPE_BIT_7)
217 #define CONTEXT_FLOAT(field) CONTEXT_FIELD(field, TYPE_FLOAT)
218 #define CONTEXT_FLOAT2(field) CONTEXT_FIELD(field, TYPE_FLOAT_2)
219 #define CONTEXT_FLOAT3(field) CONTEXT_FIELD(field, TYPE_FLOAT_3)
220 #define CONTEXT_FLOAT4(field) CONTEXT_FIELD(field, TYPE_FLOAT_4)
221 #define CONTEXT_MATRIX(field) CONTEXT_FIELD(field, TYPE_MATRIX)
222 #define CONTEXT_MATRIX_T(field) CONTEXT_FIELD(field, TYPE_MATRIX_T)
223
224 #define ARRAY_INT(field) ARRAY_FIELD(field, TYPE_INT)
225 #define ARRAY_ENUM(field) ARRAY_FIELD(field, TYPE_ENUM)
226 #define ARRAY_BOOL(field) ARRAY_FIELD(field, TYPE_BOOLEAN)
227
228 #define EXT(f) \
229 offsetof(struct gl_extensions, f)
230
231 #define EXTRA_EXT(e) \
232 static const int extra_##e[] = { \
233 EXT(e), EXTRA_END \
234 }
235
236 #define EXTRA_EXT2(e1, e2) \
237 static const int extra_##e1##_##e2[] = { \
238 EXT(e1), EXT(e2), EXTRA_END \
239 }
240
241 /* The 'extra' mechanism is a way to specify extra checks (such as
242 * extensions or specific gl versions) or actions (flush current, new
243 * buffers) that we need to do before looking up an enum. We need to
244 * declare them all up front so we can refer to them in the value_desc
245 * structs below.
246 *
247 * Each EXTRA_ will be executed. For EXTRA_* enums of extensions and API
248 * versions, listing multiple ones in an array means an error will be thrown
249 * only if none of them are available. If you need to check for "AND"
250 * behavior, you would need to make a custom EXTRA_ enum.
251 */
252
253 static const int extra_new_buffers[] = {
254 EXTRA_NEW_BUFFERS,
255 EXTRA_END
256 };
257
258 static const int extra_new_frag_clamp[] = {
259 EXTRA_NEW_FRAG_CLAMP,
260 EXTRA_END
261 };
262
263 static const int extra_valid_draw_buffer[] = {
264 EXTRA_VALID_DRAW_BUFFER,
265 EXTRA_END
266 };
267
268 static const int extra_valid_texture_unit[] = {
269 EXTRA_VALID_TEXTURE_UNIT,
270 EXTRA_END
271 };
272
273 static const int extra_valid_clip_distance[] = {
274 EXTRA_VALID_CLIP_DISTANCE,
275 EXTRA_END
276 };
277
278 static const int extra_flush_current_valid_texture_unit[] = {
279 EXTRA_FLUSH_CURRENT,
280 EXTRA_VALID_TEXTURE_UNIT,
281 EXTRA_END
282 };
283
284 static const int extra_flush_current[] = {
285 EXTRA_FLUSH_CURRENT,
286 EXTRA_END
287 };
288
289 static const int extra_EXT_texture_integer_and_new_buffers[] = {
290 EXT(EXT_texture_integer),
291 EXTRA_NEW_BUFFERS,
292 EXTRA_END
293 };
294
295 static const int extra_GLSL_130_es3[] = {
296 EXTRA_GLSL_130,
297 EXTRA_API_ES3,
298 EXTRA_END
299 };
300
301 static const int extra_texture_buffer_object[] = {
302 EXTRA_API_GL_CORE,
303 EXTRA_VERSION_31,
304 EXT(ARB_texture_buffer_object),
305 EXTRA_END
306 };
307
308 static const int extra_ARB_transform_feedback2_api_es3[] = {
309 EXT(ARB_transform_feedback2),
310 EXTRA_API_ES3,
311 EXTRA_END
312 };
313
314 static const int extra_ARB_uniform_buffer_object_and_geometry_shader[] = {
315 EXTRA_EXT_UBO_GS,
316 EXTRA_END
317 };
318
319 static const int extra_ARB_ES2_compatibility_api_es2[] = {
320 EXT(ARB_ES2_compatibility),
321 EXTRA_API_ES2,
322 EXTRA_END
323 };
324
325 static const int extra_ARB_ES3_compatibility_api_es3[] = {
326 EXT(ARB_ES3_compatibility),
327 EXTRA_API_ES3,
328 EXTRA_END
329 };
330
331 static const int extra_EXT_framebuffer_sRGB_and_new_buffers[] = {
332 EXT(EXT_framebuffer_sRGB),
333 EXTRA_NEW_BUFFERS,
334 EXTRA_END
335 };
336
337 static const int extra_EXT_packed_float[] = {
338 EXT(EXT_packed_float),
339 EXTRA_NEW_BUFFERS,
340 EXTRA_END
341 };
342
343 static const int extra_EXT_texture_array_es3[] = {
344 EXT(EXT_texture_array),
345 EXTRA_API_ES3,
346 EXTRA_END
347 };
348
349 static const int extra_ARB_shader_atomic_counters_and_geometry_shader[] = {
350 EXTRA_EXT_ATOMICS_GS,
351 EXTRA_END
352 };
353
354 static const int extra_ARB_shader_image_load_store_and_geometry_shader[] = {
355 EXTRA_EXT_SHADER_IMAGE_GS,
356 EXTRA_END
357 };
358
359 static const int extra_ARB_shader_atomic_counters_and_tessellation[] = {
360 EXTRA_EXT_ATOMICS_TESS,
361 EXTRA_END
362 };
363
364 static const int extra_ARB_shader_image_load_store_and_tessellation[] = {
365 EXTRA_EXT_SHADER_IMAGE_TESS,
366 EXTRA_END
367 };
368
369 /* HACK: remove when ARB_compute_shader is actually supported */
370 static const int extra_ARB_compute_shader_es31[] = {
371 EXT(ARB_compute_shader),
372 EXTRA_API_ES31,
373 EXTRA_END
374 };
375
376 static const int extra_ARB_shader_storage_buffer_object_es31[] = {
377 EXT(ARB_shader_storage_buffer_object),
378 EXTRA_API_ES31,
379 EXTRA_END
380 };
381
382 static const int extra_ARB_shader_storage_buffer_object_and_geometry_shader[] = {
383 EXTRA_EXT_SSBO_GS,
384 EXTRA_END
385 };
386
387 static const int extra_ARB_shader_image_load_store_shader_storage_buffer_object_es31[] = {
388 EXT(ARB_shader_image_load_store),
389 EXT(ARB_shader_storage_buffer_object),
390 EXTRA_API_ES31,
391 EXTRA_END
392 };
393
394 static const int extra_ARB_framebuffer_no_attachments_and_geometry_shader[] = {
395 EXTRA_EXT_FB_NO_ATTACH_GS,
396 EXTRA_END
397 };
398
399 static const int extra_ARB_viewport_array_or_oes_geometry_shader[] = {
400 EXT(ARB_viewport_array),
401 EXTRA_EXT_ES_GS,
402 EXTRA_END
403 };
404
405 static const int extra_ARB_gpu_shader5_or_oes_geometry_shader[] = {
406 EXT(ARB_gpu_shader5),
407 EXTRA_EXT_ES_GS,
408 EXTRA_END
409 };
410
411 static const int extra_ARB_gpu_shader5_or_OES_sample_variables[] = {
412 EXT(ARB_gpu_shader5),
413 EXT(OES_sample_variables),
414 };
415
416 EXTRA_EXT(ARB_texture_cube_map);
417 EXTRA_EXT(EXT_texture_array);
418 EXTRA_EXT(NV_fog_distance);
419 EXTRA_EXT(EXT_texture_filter_anisotropic);
420 EXTRA_EXT(NV_point_sprite);
421 EXTRA_EXT(NV_texture_rectangle);
422 EXTRA_EXT(EXT_stencil_two_side);
423 EXTRA_EXT(EXT_depth_bounds_test);
424 EXTRA_EXT(ARB_depth_clamp);
425 EXTRA_EXT(ATI_fragment_shader);
426 EXTRA_EXT(EXT_provoking_vertex);
427 EXTRA_EXT(ARB_fragment_shader);
428 EXTRA_EXT(ARB_fragment_program);
429 EXTRA_EXT2(ARB_framebuffer_object, EXT_framebuffer_multisample);
430 EXTRA_EXT(ARB_seamless_cube_map);
431 EXTRA_EXT(ARB_sync);
432 EXTRA_EXT(ARB_vertex_shader);
433 EXTRA_EXT(EXT_transform_feedback);
434 EXTRA_EXT(ARB_transform_feedback3);
435 EXTRA_EXT(EXT_pixel_buffer_object);
436 EXTRA_EXT(ARB_vertex_program);
437 EXTRA_EXT2(NV_point_sprite, ARB_point_sprite);
438 EXTRA_EXT2(ARB_vertex_program, ARB_fragment_program);
439 EXTRA_EXT(ARB_color_buffer_float);
440 EXTRA_EXT(EXT_framebuffer_sRGB);
441 EXTRA_EXT(OES_EGL_image_external);
442 EXTRA_EXT(ARB_blend_func_extended);
443 EXTRA_EXT(ARB_uniform_buffer_object);
444 EXTRA_EXT(ARB_timer_query);
445 EXTRA_EXT(ARB_texture_cube_map_array);
446 EXTRA_EXT(ARB_texture_buffer_range);
447 EXTRA_EXT(ARB_texture_multisample);
448 EXTRA_EXT(ARB_texture_gather);
449 EXTRA_EXT(ARB_shader_atomic_counters);
450 EXTRA_EXT(ARB_draw_indirect);
451 EXTRA_EXT(ARB_shader_image_load_store);
452 EXTRA_EXT(ARB_viewport_array);
453 EXTRA_EXT(ARB_compute_shader);
454 EXTRA_EXT(ARB_gpu_shader5);
455 EXTRA_EXT(ARB_query_buffer_object);
456 EXTRA_EXT2(ARB_transform_feedback3, ARB_gpu_shader5);
457 EXTRA_EXT(INTEL_performance_query);
458 EXTRA_EXT(ARB_explicit_uniform_location);
459 EXTRA_EXT(ARB_clip_control);
460 EXTRA_EXT(EXT_polygon_offset_clamp);
461 EXTRA_EXT(ARB_framebuffer_no_attachments);
462 EXTRA_EXT(ARB_tessellation_shader);
463 EXTRA_EXT(ARB_shader_subroutine);
464 EXTRA_EXT(ARB_shader_storage_buffer_object);
465 EXTRA_EXT(ARB_indirect_parameters);
466 EXTRA_EXT(ATI_meminfo);
467 EXTRA_EXT(NVX_gpu_memory_info);
468
469 static const int
470 extra_ARB_color_buffer_float_or_glcore[] = {
471 EXT(ARB_color_buffer_float),
472 EXTRA_API_GL_CORE,
473 EXTRA_END
474 };
475
476 static const int
477 extra_NV_primitive_restart[] = {
478 EXT(NV_primitive_restart),
479 EXTRA_END
480 };
481
482 static const int extra_version_30[] = { EXTRA_VERSION_30, EXTRA_END };
483 static const int extra_version_31[] = { EXTRA_VERSION_31, EXTRA_END };
484 static const int extra_version_32[] = { EXTRA_VERSION_32, EXTRA_END };
485 static const int extra_version_40[] = { EXTRA_VERSION_40, EXTRA_END };
486
487 static const int extra_gl30_es3[] = {
488 EXTRA_VERSION_30,
489 EXTRA_API_ES3,
490 EXTRA_END,
491 };
492
493 static const int extra_gl32_es3[] = {
494 EXTRA_VERSION_32,
495 EXTRA_API_ES3,
496 EXTRA_END,
497 };
498
499 static const int extra_version_32_OES_geometry_shader[] = {
500 EXTRA_VERSION_32,
501 EXTRA_EXT_ES_GS,
502 EXTRA_END
503 };
504
505 static const int extra_gl40_ARB_sample_shading[] = {
506 EXTRA_VERSION_40,
507 EXT(ARB_sample_shading),
508 EXTRA_END
509 };
510
511 static const int
512 extra_ARB_vertex_program_api_es2[] = {
513 EXT(ARB_vertex_program),
514 EXTRA_API_ES2,
515 EXTRA_END
516 };
517
518 /* The ReadBuffer get token is valid under either full GL or under
519 * GLES2 if the NV_read_buffer extension is available. */
520 static const int
521 extra_NV_read_buffer_api_gl[] = {
522 EXTRA_API_ES2,
523 EXTRA_API_GL,
524 EXTRA_END
525 };
526
527 static const int extra_core_ARB_color_buffer_float_and_new_buffers[] = {
528 EXTRA_API_GL_CORE,
529 EXT(ARB_color_buffer_float),
530 EXTRA_NEW_BUFFERS,
531 EXTRA_END
532 };
533
534 /* This is the big table describing all the enums we accept in
535 * glGet*v(). The table is partitioned into six parts: enums
536 * understood by all GL APIs (OpenGL, GLES and GLES2), enums shared
537 * between OpenGL and GLES, enums exclusive to GLES, etc for the
538 * remaining combinations. To look up the enums valid in a given API
539 * we will use a hash table specific to that API. These tables are in
540 * turn generated at build time and included through get_hash.h.
541 */
542
543 #include "get_hash.h"
544
545 /* All we need now is a way to look up the value struct from the enum.
546 * The code generated by gcc for the old generated big switch
547 * statement is a big, balanced, open coded if/else tree, essentially
548 * an unrolled binary search. It would be natural to sort the new
549 * enum table and use bsearch(), but we will use a read-only hash
550 * table instead. bsearch() has a nice guaranteed worst case
551 * performance, but we're also guaranteed to hit that worst case
552 * (log2(n) iterations) for about half the enums. Instead, using an
553 * open addressing hash table, we can find the enum on the first try
554 * for 80% of the enums, 1 collision for 10% and never more than 5
555 * collisions for any enum (typical numbers). And the code is very
556 * simple, even though it feels a little magic. */
557
558 #ifdef GET_DEBUG
559 static void
560 print_table_stats(int api)
561 {
562 int i, j, collisions[11], count, hash, mask;
563 const struct value_desc *d;
564 const char *api_names[] = {
565 [API_OPENGL_COMPAT] = "GL",
566 [API_OPENGL_CORE] = "GL_CORE",
567 [API_OPENGLES] = "GLES",
568 [API_OPENGLES2] = "GLES2",
569 };
570 const char *api_name;
571
572 api_name = api < ARRAY_SIZE(api_names) ? api_names[api] : "N/A";
573 count = 0;
574 mask = ARRAY_SIZE(table(api)) - 1;
575 memset(collisions, 0, sizeof collisions);
576
577 for (i = 0; i < ARRAY_SIZE(table(api)); i++) {
578 if (!table(api)[i])
579 continue;
580 count++;
581 d = &values[table(api)[i]];
582 hash = (d->pname * prime_factor);
583 j = 0;
584 while (1) {
585 if (values[table(api)[hash & mask]].pname == d->pname)
586 break;
587 hash += prime_step;
588 j++;
589 }
590
591 if (j < 10)
592 collisions[j]++;
593 else
594 collisions[10]++;
595 }
596
597 printf("number of enums for %s: %d (total %ld)\n",
598 api_name, count, ARRAY_SIZE(values));
599 for (i = 0; i < ARRAY_SIZE(collisions) - 1; i++)
600 if (collisions[i] > 0)
601 printf(" %d enums with %d %scollisions\n",
602 collisions[i], i, i == 10 ? "or more " : "");
603 }
604 #endif
605
606 /**
607 * Initialize the enum hash for a given API
608 *
609 * This is called from one_time_init() to insert the enum values that
610 * are valid for the API in question into the enum hash table.
611 *
612 * \param the current context, for determining the API in question
613 */
614 void _mesa_init_get_hash(struct gl_context *ctx)
615 {
616 #ifdef GET_DEBUG
617 print_table_stats(ctx->API);
618 #else
619 (void) ctx;
620 #endif
621 }
622
623 /**
624 * Handle irregular enums
625 *
626 * Some values don't conform to the "well-known type at context
627 * pointer + offset" pattern, so we have this function to catch all
628 * the corner cases. Typically, it's a computed value or a one-off
629 * pointer to a custom struct or something.
630 *
631 * In this case we can't return a pointer to the value, so we'll have
632 * to use the temporary variable 'v' declared back in the calling
633 * glGet*v() function to store the result.
634 *
635 * \param ctx the current context
636 * \param d the struct value_desc that describes the enum
637 * \param v pointer to the tmp declared in the calling glGet*v() function
638 */
639 static void
640 find_custom_value(struct gl_context *ctx, const struct value_desc *d, union value *v)
641 {
642 struct gl_buffer_object **buffer_obj;
643 struct gl_vertex_attrib_array *array;
644 GLuint unit, *p;
645
646 switch (d->pname) {
647 case GL_MAJOR_VERSION:
648 v->value_int = ctx->Version / 10;
649 break;
650 case GL_MINOR_VERSION:
651 v->value_int = ctx->Version % 10;
652 break;
653
654 case GL_TEXTURE_1D:
655 case GL_TEXTURE_2D:
656 case GL_TEXTURE_3D:
657 case GL_TEXTURE_CUBE_MAP:
658 case GL_TEXTURE_RECTANGLE_NV:
659 case GL_TEXTURE_EXTERNAL_OES:
660 v->value_bool = _mesa_IsEnabled(d->pname);
661 break;
662
663 case GL_LINE_STIPPLE_PATTERN:
664 /* This is the only GLushort, special case it here by promoting
665 * to an int rather than introducing a new type. */
666 v->value_int = ctx->Line.StipplePattern;
667 break;
668
669 case GL_CURRENT_RASTER_TEXTURE_COORDS:
670 unit = ctx->Texture.CurrentUnit;
671 v->value_float_4[0] = ctx->Current.RasterTexCoords[unit][0];
672 v->value_float_4[1] = ctx->Current.RasterTexCoords[unit][1];
673 v->value_float_4[2] = ctx->Current.RasterTexCoords[unit][2];
674 v->value_float_4[3] = ctx->Current.RasterTexCoords[unit][3];
675 break;
676
677 case GL_CURRENT_TEXTURE_COORDS:
678 unit = ctx->Texture.CurrentUnit;
679 v->value_float_4[0] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][0];
680 v->value_float_4[1] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][1];
681 v->value_float_4[2] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][2];
682 v->value_float_4[3] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][3];
683 break;
684
685 case GL_COLOR_WRITEMASK:
686 v->value_int_4[0] = ctx->Color.ColorMask[0][RCOMP] ? 1 : 0;
687 v->value_int_4[1] = ctx->Color.ColorMask[0][GCOMP] ? 1 : 0;
688 v->value_int_4[2] = ctx->Color.ColorMask[0][BCOMP] ? 1 : 0;
689 v->value_int_4[3] = ctx->Color.ColorMask[0][ACOMP] ? 1 : 0;
690 break;
691
692 case GL_EDGE_FLAG:
693 v->value_bool = ctx->Current.Attrib[VERT_ATTRIB_EDGEFLAG][0] == 1.0F;
694 break;
695
696 case GL_READ_BUFFER:
697 v->value_enum = ctx->ReadBuffer->ColorReadBuffer;
698 break;
699
700 case GL_MAP2_GRID_DOMAIN:
701 v->value_float_4[0] = ctx->Eval.MapGrid2u1;
702 v->value_float_4[1] = ctx->Eval.MapGrid2u2;
703 v->value_float_4[2] = ctx->Eval.MapGrid2v1;
704 v->value_float_4[3] = ctx->Eval.MapGrid2v2;
705 break;
706
707 case GL_TEXTURE_STACK_DEPTH:
708 unit = ctx->Texture.CurrentUnit;
709 v->value_int = ctx->TextureMatrixStack[unit].Depth + 1;
710 break;
711 case GL_TEXTURE_MATRIX:
712 unit = ctx->Texture.CurrentUnit;
713 v->value_matrix = ctx->TextureMatrixStack[unit].Top;
714 break;
715
716 case GL_TEXTURE_COORD_ARRAY:
717 case GL_TEXTURE_COORD_ARRAY_SIZE:
718 case GL_TEXTURE_COORD_ARRAY_TYPE:
719 case GL_TEXTURE_COORD_ARRAY_STRIDE:
720 array = &ctx->Array.VAO->VertexAttrib[VERT_ATTRIB_TEX(ctx->Array.ActiveTexture)];
721 v->value_int = *(GLuint *) ((char *) array + d->offset);
722 break;
723
724 case GL_ACTIVE_TEXTURE_ARB:
725 v->value_int = GL_TEXTURE0_ARB + ctx->Texture.CurrentUnit;
726 break;
727 case GL_CLIENT_ACTIVE_TEXTURE_ARB:
728 v->value_int = GL_TEXTURE0_ARB + ctx->Array.ActiveTexture;
729 break;
730
731 case GL_MODELVIEW_STACK_DEPTH:
732 case GL_PROJECTION_STACK_DEPTH:
733 v->value_int = *(GLint *) ((char *) ctx + d->offset) + 1;
734 break;
735
736 case GL_MAX_TEXTURE_SIZE:
737 case GL_MAX_3D_TEXTURE_SIZE:
738 case GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB:
739 p = (GLuint *) ((char *) ctx + d->offset);
740 v->value_int = 1 << (*p - 1);
741 break;
742
743 case GL_SCISSOR_BOX:
744 v->value_int_4[0] = ctx->Scissor.ScissorArray[0].X;
745 v->value_int_4[1] = ctx->Scissor.ScissorArray[0].Y;
746 v->value_int_4[2] = ctx->Scissor.ScissorArray[0].Width;
747 v->value_int_4[3] = ctx->Scissor.ScissorArray[0].Height;
748 break;
749
750 case GL_SCISSOR_TEST:
751 v->value_bool = ctx->Scissor.EnableFlags & 1;
752 break;
753
754 case GL_LIST_INDEX:
755 v->value_int =
756 ctx->ListState.CurrentList ? ctx->ListState.CurrentList->Name : 0;
757 break;
758 case GL_LIST_MODE:
759 if (!ctx->CompileFlag)
760 v->value_enum = 0;
761 else if (ctx->ExecuteFlag)
762 v->value_enum = GL_COMPILE_AND_EXECUTE;
763 else
764 v->value_enum = GL_COMPILE;
765 break;
766
767 case GL_VIEWPORT:
768 v->value_float_4[0] = ctx->ViewportArray[0].X;
769 v->value_float_4[1] = ctx->ViewportArray[0].Y;
770 v->value_float_4[2] = ctx->ViewportArray[0].Width;
771 v->value_float_4[3] = ctx->ViewportArray[0].Height;
772 break;
773
774 case GL_DEPTH_RANGE:
775 v->value_double_2[0] = ctx->ViewportArray[0].Near;
776 v->value_double_2[1] = ctx->ViewportArray[0].Far;
777 break;
778
779 case GL_ACTIVE_STENCIL_FACE_EXT:
780 v->value_enum = ctx->Stencil.ActiveFace ? GL_BACK : GL_FRONT;
781 break;
782
783 case GL_STENCIL_FAIL:
784 v->value_enum = ctx->Stencil.FailFunc[ctx->Stencil.ActiveFace];
785 break;
786 case GL_STENCIL_FUNC:
787 v->value_enum = ctx->Stencil.Function[ctx->Stencil.ActiveFace];
788 break;
789 case GL_STENCIL_PASS_DEPTH_FAIL:
790 v->value_enum = ctx->Stencil.ZFailFunc[ctx->Stencil.ActiveFace];
791 break;
792 case GL_STENCIL_PASS_DEPTH_PASS:
793 v->value_enum = ctx->Stencil.ZPassFunc[ctx->Stencil.ActiveFace];
794 break;
795 case GL_STENCIL_REF:
796 v->value_int = _mesa_get_stencil_ref(ctx, ctx->Stencil.ActiveFace);
797 break;
798 case GL_STENCIL_BACK_REF:
799 v->value_int = _mesa_get_stencil_ref(ctx, 1);
800 break;
801 case GL_STENCIL_VALUE_MASK:
802 v->value_int = ctx->Stencil.ValueMask[ctx->Stencil.ActiveFace];
803 break;
804 case GL_STENCIL_WRITEMASK:
805 v->value_int = ctx->Stencil.WriteMask[ctx->Stencil.ActiveFace];
806 break;
807
808 case GL_NUM_EXTENSIONS:
809 v->value_int = _mesa_get_extension_count(ctx);
810 break;
811
812 case GL_IMPLEMENTATION_COLOR_READ_TYPE_OES:
813 v->value_int = _mesa_get_color_read_type(ctx);
814 break;
815 case GL_IMPLEMENTATION_COLOR_READ_FORMAT_OES:
816 v->value_int = _mesa_get_color_read_format(ctx);
817 break;
818
819 case GL_CURRENT_MATRIX_STACK_DEPTH_ARB:
820 v->value_int = ctx->CurrentStack->Depth + 1;
821 break;
822 case GL_CURRENT_MATRIX_ARB:
823 case GL_TRANSPOSE_CURRENT_MATRIX_ARB:
824 v->value_matrix = ctx->CurrentStack->Top;
825 break;
826
827 case GL_NUM_COMPRESSED_TEXTURE_FORMATS_ARB:
828 v->value_int = _mesa_get_compressed_formats(ctx, NULL);
829 break;
830 case GL_COMPRESSED_TEXTURE_FORMATS_ARB:
831 v->value_int_n.n =
832 _mesa_get_compressed_formats(ctx, v->value_int_n.ints);
833 assert(v->value_int_n.n <= (int) ARRAY_SIZE(v->value_int_n.ints));
834 break;
835
836 case GL_MAX_VARYING_FLOATS_ARB:
837 v->value_int = ctx->Const.MaxVarying * 4;
838 break;
839
840 /* Various object names */
841
842 case GL_TEXTURE_BINDING_1D:
843 case GL_TEXTURE_BINDING_2D:
844 case GL_TEXTURE_BINDING_3D:
845 case GL_TEXTURE_BINDING_1D_ARRAY_EXT:
846 case GL_TEXTURE_BINDING_2D_ARRAY_EXT:
847 case GL_TEXTURE_BINDING_CUBE_MAP_ARB:
848 case GL_TEXTURE_BINDING_RECTANGLE_NV:
849 case GL_TEXTURE_BINDING_EXTERNAL_OES:
850 case GL_TEXTURE_BINDING_CUBE_MAP_ARRAY:
851 case GL_TEXTURE_BINDING_2D_MULTISAMPLE:
852 case GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY:
853 unit = ctx->Texture.CurrentUnit;
854 v->value_int =
855 ctx->Texture.Unit[unit].CurrentTex[d->offset]->Name;
856 break;
857
858 /* GL_EXT_packed_float */
859 case GL_RGBA_SIGNED_COMPONENTS_EXT:
860 {
861 /* Note: we only check the 0th color attachment. */
862 const struct gl_renderbuffer *rb =
863 ctx->DrawBuffer->_ColorDrawBuffers[0];
864 if (rb && _mesa_is_format_signed(rb->Format)) {
865 /* Issue 17 of GL_EXT_packed_float: If a component (such as
866 * alpha) has zero bits, the component should not be considered
867 * signed and so the bit for the respective component should be
868 * zeroed.
869 */
870 GLint r_bits =
871 _mesa_get_format_bits(rb->Format, GL_RED_BITS);
872 GLint g_bits =
873 _mesa_get_format_bits(rb->Format, GL_GREEN_BITS);
874 GLint b_bits =
875 _mesa_get_format_bits(rb->Format, GL_BLUE_BITS);
876 GLint a_bits =
877 _mesa_get_format_bits(rb->Format, GL_ALPHA_BITS);
878 GLint l_bits =
879 _mesa_get_format_bits(rb->Format, GL_TEXTURE_LUMINANCE_SIZE);
880 GLint i_bits =
881 _mesa_get_format_bits(rb->Format, GL_TEXTURE_INTENSITY_SIZE);
882
883 v->value_int_4[0] = r_bits + l_bits + i_bits > 0;
884 v->value_int_4[1] = g_bits + l_bits + i_bits > 0;
885 v->value_int_4[2] = b_bits + l_bits + i_bits > 0;
886 v->value_int_4[3] = a_bits + i_bits > 0;
887 }
888 else {
889 v->value_int_4[0] =
890 v->value_int_4[1] =
891 v->value_int_4[2] =
892 v->value_int_4[3] = 0;
893 }
894 }
895 break;
896
897 /* GL_ARB_vertex_buffer_object */
898 case GL_VERTEX_ARRAY_BUFFER_BINDING_ARB:
899 case GL_NORMAL_ARRAY_BUFFER_BINDING_ARB:
900 case GL_COLOR_ARRAY_BUFFER_BINDING_ARB:
901 case GL_INDEX_ARRAY_BUFFER_BINDING_ARB:
902 case GL_EDGE_FLAG_ARRAY_BUFFER_BINDING_ARB:
903 case GL_SECONDARY_COLOR_ARRAY_BUFFER_BINDING_ARB:
904 case GL_FOG_COORDINATE_ARRAY_BUFFER_BINDING_ARB:
905 buffer_obj = (struct gl_buffer_object **)
906 ((char *) ctx->Array.VAO + d->offset);
907 v->value_int = (*buffer_obj)->Name;
908 break;
909 case GL_ARRAY_BUFFER_BINDING_ARB:
910 v->value_int = ctx->Array.ArrayBufferObj->Name;
911 break;
912 case GL_TEXTURE_COORD_ARRAY_BUFFER_BINDING_ARB:
913 v->value_int =
914 ctx->Array.VAO->VertexBinding[VERT_ATTRIB_TEX(ctx->Array.ActiveTexture)].BufferObj->Name;
915 break;
916 case GL_ELEMENT_ARRAY_BUFFER_BINDING_ARB:
917 v->value_int = ctx->Array.VAO->IndexBufferObj->Name;
918 break;
919
920 /* ARB_vertex_array_bgra */
921 case GL_COLOR_ARRAY_SIZE:
922 array = &ctx->Array.VAO->VertexAttrib[VERT_ATTRIB_COLOR0];
923 v->value_int = array->Format == GL_BGRA ? GL_BGRA : array->Size;
924 break;
925 case GL_SECONDARY_COLOR_ARRAY_SIZE:
926 array = &ctx->Array.VAO->VertexAttrib[VERT_ATTRIB_COLOR1];
927 v->value_int = array->Format == GL_BGRA ? GL_BGRA : array->Size;
928 break;
929
930 /* ARB_copy_buffer */
931 case GL_COPY_READ_BUFFER:
932 v->value_int = ctx->CopyReadBuffer->Name;
933 break;
934 case GL_COPY_WRITE_BUFFER:
935 v->value_int = ctx->CopyWriteBuffer->Name;
936 break;
937
938 case GL_PIXEL_PACK_BUFFER_BINDING_EXT:
939 v->value_int = ctx->Pack.BufferObj->Name;
940 break;
941 case GL_PIXEL_UNPACK_BUFFER_BINDING_EXT:
942 v->value_int = ctx->Unpack.BufferObj->Name;
943 break;
944 case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING:
945 v->value_int = ctx->TransformFeedback.CurrentBuffer->Name;
946 break;
947 case GL_TRANSFORM_FEEDBACK_BUFFER_PAUSED:
948 v->value_int = ctx->TransformFeedback.CurrentObject->Paused;
949 break;
950 case GL_TRANSFORM_FEEDBACK_BUFFER_ACTIVE:
951 v->value_int = ctx->TransformFeedback.CurrentObject->Active;
952 break;
953 case GL_TRANSFORM_FEEDBACK_BINDING:
954 v->value_int = ctx->TransformFeedback.CurrentObject->Name;
955 break;
956 case GL_CURRENT_PROGRAM:
957 /* The Changelog of the ARB_separate_shader_objects spec says:
958 *
959 * 24 25 Jul 2011 pbrown Remove the language erroneously deleting
960 * CURRENT_PROGRAM. In the EXT extension, this
961 * token was aliased to ACTIVE_PROGRAM_EXT, and
962 * was used to indicate the last program set by
963 * either ActiveProgramEXT or UseProgram. In
964 * the ARB extension, the SSO active programs
965 * are now program pipeline object state and
966 * CURRENT_PROGRAM should still be used to query
967 * the last program set by UseProgram (bug 7822).
968 */
969 v->value_int =
970 ctx->Shader.ActiveProgram ? ctx->Shader.ActiveProgram->Name : 0;
971 break;
972 case GL_READ_FRAMEBUFFER_BINDING_EXT:
973 v->value_int = ctx->ReadBuffer->Name;
974 break;
975 case GL_RENDERBUFFER_BINDING_EXT:
976 v->value_int =
977 ctx->CurrentRenderbuffer ? ctx->CurrentRenderbuffer->Name : 0;
978 break;
979 case GL_POINT_SIZE_ARRAY_BUFFER_BINDING_OES:
980 v->value_int = ctx->Array.VAO->VertexBinding[VERT_ATTRIB_POINT_SIZE].BufferObj->Name;
981 break;
982
983 case GL_FOG_COLOR:
984 if (_mesa_get_clamp_fragment_color(ctx, ctx->DrawBuffer))
985 COPY_4FV(v->value_float_4, ctx->Fog.Color);
986 else
987 COPY_4FV(v->value_float_4, ctx->Fog.ColorUnclamped);
988 break;
989 case GL_COLOR_CLEAR_VALUE:
990 if (_mesa_get_clamp_fragment_color(ctx, ctx->DrawBuffer)) {
991 v->value_float_4[0] = CLAMP(ctx->Color.ClearColor.f[0], 0.0F, 1.0F);
992 v->value_float_4[1] = CLAMP(ctx->Color.ClearColor.f[1], 0.0F, 1.0F);
993 v->value_float_4[2] = CLAMP(ctx->Color.ClearColor.f[2], 0.0F, 1.0F);
994 v->value_float_4[3] = CLAMP(ctx->Color.ClearColor.f[3], 0.0F, 1.0F);
995 } else
996 COPY_4FV(v->value_float_4, ctx->Color.ClearColor.f);
997 break;
998 case GL_BLEND_COLOR_EXT:
999 if (_mesa_get_clamp_fragment_color(ctx, ctx->DrawBuffer))
1000 COPY_4FV(v->value_float_4, ctx->Color.BlendColor);
1001 else
1002 COPY_4FV(v->value_float_4, ctx->Color.BlendColorUnclamped);
1003 break;
1004 case GL_ALPHA_TEST_REF:
1005 if (_mesa_get_clamp_fragment_color(ctx, ctx->DrawBuffer))
1006 v->value_float = ctx->Color.AlphaRef;
1007 else
1008 v->value_float = ctx->Color.AlphaRefUnclamped;
1009 break;
1010 case GL_MAX_VERTEX_UNIFORM_VECTORS:
1011 v->value_int = ctx->Const.Program[MESA_SHADER_VERTEX].MaxUniformComponents / 4;
1012 break;
1013
1014 case GL_MAX_FRAGMENT_UNIFORM_VECTORS:
1015 v->value_int = ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxUniformComponents / 4;
1016 break;
1017
1018 /* GL_ARB_texture_buffer_object */
1019 case GL_TEXTURE_BUFFER_ARB:
1020 v->value_int = ctx->Texture.BufferObject->Name;
1021 break;
1022 case GL_TEXTURE_BINDING_BUFFER_ARB:
1023 unit = ctx->Texture.CurrentUnit;
1024 v->value_int =
1025 ctx->Texture.Unit[unit].CurrentTex[TEXTURE_BUFFER_INDEX]->Name;
1026 break;
1027 case GL_TEXTURE_BUFFER_DATA_STORE_BINDING_ARB:
1028 {
1029 struct gl_buffer_object *buf =
1030 ctx->Texture.Unit[ctx->Texture.CurrentUnit]
1031 .CurrentTex[TEXTURE_BUFFER_INDEX]->BufferObject;
1032 v->value_int = buf ? buf->Name : 0;
1033 }
1034 break;
1035 case GL_TEXTURE_BUFFER_FORMAT_ARB:
1036 v->value_int = ctx->Texture.Unit[ctx->Texture.CurrentUnit]
1037 .CurrentTex[TEXTURE_BUFFER_INDEX]->BufferObjectFormat;
1038 break;
1039
1040 /* GL_ARB_sampler_objects */
1041 case GL_SAMPLER_BINDING:
1042 {
1043 struct gl_sampler_object *samp =
1044 ctx->Texture.Unit[ctx->Texture.CurrentUnit].Sampler;
1045 v->value_int = samp ? samp->Name : 0;
1046 }
1047 break;
1048 /* GL_ARB_uniform_buffer_object */
1049 case GL_UNIFORM_BUFFER_BINDING:
1050 v->value_int = ctx->UniformBuffer->Name;
1051 break;
1052 /* GL_ARB_shader_storage_buffer_object */
1053 case GL_SHADER_STORAGE_BUFFER_BINDING:
1054 v->value_int = ctx->ShaderStorageBuffer->Name;
1055 break;
1056 /* GL_ARB_query_buffer_object */
1057 case GL_QUERY_BUFFER_BINDING:
1058 v->value_int = ctx->QueryBuffer->Name;
1059 break;
1060 /* GL_ARB_timer_query */
1061 case GL_TIMESTAMP:
1062 if (ctx->Driver.GetTimestamp) {
1063 v->value_int64 = ctx->Driver.GetTimestamp(ctx);
1064 }
1065 else {
1066 _mesa_problem(ctx, "driver doesn't implement GetTimestamp");
1067 }
1068 break;
1069 /* GL_KHR_DEBUG */
1070 case GL_DEBUG_OUTPUT:
1071 case GL_DEBUG_OUTPUT_SYNCHRONOUS:
1072 case GL_DEBUG_LOGGED_MESSAGES:
1073 case GL_DEBUG_NEXT_LOGGED_MESSAGE_LENGTH:
1074 case GL_DEBUG_GROUP_STACK_DEPTH:
1075 v->value_int = _mesa_get_debug_state_int(ctx, d->pname);
1076 break;
1077 /* GL_ARB_shader_atomic_counters */
1078 case GL_ATOMIC_COUNTER_BUFFER_BINDING:
1079 if (ctx->AtomicBuffer) {
1080 v->value_int = ctx->AtomicBuffer->Name;
1081 } else {
1082 v->value_int = 0;
1083 }
1084 break;
1085 /* GL_ARB_draw_indirect */
1086 case GL_DRAW_INDIRECT_BUFFER_BINDING:
1087 v->value_int = ctx->DrawIndirectBuffer->Name;
1088 break;
1089 /* GL_ARB_indirect_parameters */
1090 case GL_PARAMETER_BUFFER_BINDING_ARB:
1091 v->value_int = ctx->ParameterBuffer->Name;
1092 break;
1093 /* GL_ARB_separate_shader_objects */
1094 case GL_PROGRAM_PIPELINE_BINDING:
1095 if (ctx->Pipeline.Current) {
1096 v->value_int = ctx->Pipeline.Current->Name;
1097 } else {
1098 v->value_int = 0;
1099 }
1100 break;
1101 /* GL_ARB_compute_shader */
1102 case GL_DISPATCH_INDIRECT_BUFFER_BINDING:
1103 v->value_int = ctx->DispatchIndirectBuffer->Name;
1104 break;
1105 /* GL_ARB_multisample */
1106 case GL_SAMPLES:
1107 v->value_int = _mesa_geometric_samples(ctx->DrawBuffer);
1108 break;
1109 case GL_SAMPLE_BUFFERS:
1110 v->value_int = _mesa_geometric_samples(ctx->DrawBuffer) > 0;
1111 break;
1112 /* GL_ATI_meminfo & GL_NVX_gpu_memory_info */
1113 case GL_VBO_FREE_MEMORY_ATI:
1114 case GL_TEXTURE_FREE_MEMORY_ATI:
1115 case GL_RENDERBUFFER_FREE_MEMORY_ATI:
1116 case GL_GPU_MEMORY_INFO_DEDICATED_VIDMEM_NVX:
1117 case GL_GPU_MEMORY_INFO_TOTAL_AVAILABLE_MEMORY_NVX:
1118 case GL_GPU_MEMORY_INFO_CURRENT_AVAILABLE_VIDMEM_NVX:
1119 case GL_GPU_MEMORY_INFO_EVICTION_COUNT_NVX:
1120 case GL_GPU_MEMORY_INFO_EVICTED_MEMORY_NVX:
1121 {
1122 struct gl_memory_info info;
1123
1124 ctx->Driver.QueryMemoryInfo(ctx, &info);
1125
1126 if (d->pname == GL_GPU_MEMORY_INFO_DEDICATED_VIDMEM_NVX)
1127 v->value_int = info.total_device_memory;
1128 else if (d->pname == GL_GPU_MEMORY_INFO_TOTAL_AVAILABLE_MEMORY_NVX)
1129 v->value_int = info.total_device_memory +
1130 info.total_staging_memory;
1131 else if (d->pname == GL_GPU_MEMORY_INFO_CURRENT_AVAILABLE_VIDMEM_NVX)
1132 v->value_int = info.avail_device_memory;
1133 else if (d->pname == GL_GPU_MEMORY_INFO_EVICTION_COUNT_NVX)
1134 v->value_int = info.nr_device_memory_evictions;
1135 else if (d->pname == GL_GPU_MEMORY_INFO_EVICTED_MEMORY_NVX)
1136 v->value_int = info.device_memory_evicted;
1137 else {
1138 /* ATI free memory enums.
1139 *
1140 * Since the GPU memory is (usually) page-table based, every two
1141 * consecutive elements are equal. From the GL_ATI_meminfo
1142 * specification:
1143 *
1144 * "param[0] - total memory free in the pool
1145 * param[1] - largest available free block in the pool
1146 * param[2] - total auxiliary memory free
1147 * param[3] - largest auxiliary free block"
1148 *
1149 * All three (VBO, TEXTURE, RENDERBUFFER) queries return
1150 * the same numbers here.
1151 */
1152 v->value_int_4[0] = info.avail_device_memory;
1153 v->value_int_4[1] = info.avail_device_memory;
1154 v->value_int_4[2] = info.avail_staging_memory;
1155 v->value_int_4[3] = info.avail_staging_memory;
1156 }
1157 }
1158 break;
1159 }
1160 }
1161
1162 /**
1163 * Check extra constraints on a struct value_desc descriptor
1164 *
1165 * If a struct value_desc has a non-NULL extra pointer, it means that
1166 * there are a number of extra constraints to check or actions to
1167 * perform. The extras is just an integer array where each integer
1168 * encode different constraints or actions.
1169 *
1170 * \param ctx current context
1171 * \param func name of calling glGet*v() function for error reporting
1172 * \param d the struct value_desc that has the extra constraints
1173 *
1174 * \return GL_FALSE if all of the constraints were not satisfied,
1175 * otherwise GL_TRUE.
1176 */
1177 static GLboolean
1178 check_extra(struct gl_context *ctx, const char *func, const struct value_desc *d)
1179 {
1180 const GLuint version = ctx->Version;
1181 GLboolean api_check = GL_FALSE;
1182 GLboolean api_found = GL_FALSE;
1183 const int *e;
1184
1185 for (e = d->extra; *e != EXTRA_END; e++) {
1186 switch (*e) {
1187 case EXTRA_VERSION_30:
1188 api_check = GL_TRUE;
1189 if (version >= 30)
1190 api_found = GL_TRUE;
1191 break;
1192 case EXTRA_VERSION_31:
1193 api_check = GL_TRUE;
1194 if (version >= 31)
1195 api_found = GL_TRUE;
1196 break;
1197 case EXTRA_VERSION_32:
1198 api_check = GL_TRUE;
1199 if (version >= 32)
1200 api_found = GL_TRUE;
1201 break;
1202 case EXTRA_NEW_FRAG_CLAMP:
1203 if (ctx->NewState & (_NEW_BUFFERS | _NEW_FRAG_CLAMP))
1204 _mesa_update_state(ctx);
1205 break;
1206 case EXTRA_API_ES2:
1207 api_check = GL_TRUE;
1208 if (ctx->API == API_OPENGLES2)
1209 api_found = GL_TRUE;
1210 break;
1211 case EXTRA_API_ES3:
1212 api_check = GL_TRUE;
1213 if (_mesa_is_gles3(ctx))
1214 api_found = GL_TRUE;
1215 break;
1216 case EXTRA_API_ES31:
1217 api_check = GL_TRUE;
1218 if (_mesa_is_gles31(ctx))
1219 api_found = GL_TRUE;
1220 break;
1221 case EXTRA_API_GL:
1222 api_check = GL_TRUE;
1223 if (_mesa_is_desktop_gl(ctx))
1224 api_found = GL_TRUE;
1225 break;
1226 case EXTRA_API_GL_CORE:
1227 api_check = GL_TRUE;
1228 if (ctx->API == API_OPENGL_CORE)
1229 api_found = GL_TRUE;
1230 break;
1231 case EXTRA_NEW_BUFFERS:
1232 if (ctx->NewState & _NEW_BUFFERS)
1233 _mesa_update_state(ctx);
1234 break;
1235 case EXTRA_FLUSH_CURRENT:
1236 FLUSH_CURRENT(ctx, 0);
1237 break;
1238 case EXTRA_VALID_DRAW_BUFFER:
1239 if (d->pname - GL_DRAW_BUFFER0_ARB >= ctx->Const.MaxDrawBuffers) {
1240 _mesa_error(ctx, GL_INVALID_OPERATION, "%s(draw buffer %u)",
1241 func, d->pname - GL_DRAW_BUFFER0_ARB);
1242 return GL_FALSE;
1243 }
1244 break;
1245 case EXTRA_VALID_TEXTURE_UNIT:
1246 if (ctx->Texture.CurrentUnit >= ctx->Const.MaxTextureCoordUnits) {
1247 _mesa_error(ctx, GL_INVALID_OPERATION, "%s(texture %u)",
1248 func, ctx->Texture.CurrentUnit);
1249 return GL_FALSE;
1250 }
1251 break;
1252 case EXTRA_VALID_CLIP_DISTANCE:
1253 if (d->pname - GL_CLIP_DISTANCE0 >= ctx->Const.MaxClipPlanes) {
1254 _mesa_error(ctx, GL_INVALID_ENUM, "%s(clip distance %u)",
1255 func, d->pname - GL_CLIP_DISTANCE0);
1256 return GL_FALSE;
1257 }
1258 break;
1259 case EXTRA_GLSL_130:
1260 api_check = GL_TRUE;
1261 if (ctx->Const.GLSLVersion >= 130)
1262 api_found = GL_TRUE;
1263 break;
1264 case EXTRA_EXT_UBO_GS:
1265 api_check = GL_TRUE;
1266 if (ctx->Extensions.ARB_uniform_buffer_object &&
1267 _mesa_has_geometry_shaders(ctx))
1268 api_found = GL_TRUE;
1269 break;
1270 case EXTRA_EXT_ATOMICS_GS:
1271 api_check = GL_TRUE;
1272 if (ctx->Extensions.ARB_shader_atomic_counters &&
1273 _mesa_has_geometry_shaders(ctx))
1274 api_found = GL_TRUE;
1275 break;
1276 case EXTRA_EXT_SHADER_IMAGE_GS:
1277 api_check = GL_TRUE;
1278 if (ctx->Extensions.ARB_shader_image_load_store &&
1279 _mesa_has_geometry_shaders(ctx))
1280 api_found = GL_TRUE;
1281 break;
1282 case EXTRA_EXT_ATOMICS_TESS:
1283 api_check = GL_TRUE;
1284 api_found = ctx->Extensions.ARB_shader_atomic_counters &&
1285 _mesa_has_tessellation(ctx);
1286 break;
1287 case EXTRA_EXT_SHADER_IMAGE_TESS:
1288 api_check = GL_TRUE;
1289 api_found = ctx->Extensions.ARB_shader_image_load_store &&
1290 _mesa_has_tessellation(ctx);
1291 break;
1292 case EXTRA_EXT_SSBO_GS:
1293 api_check = GL_TRUE;
1294 if (ctx->Extensions.ARB_shader_storage_buffer_object &&
1295 _mesa_has_geometry_shaders(ctx))
1296 api_found = GL_TRUE;
1297 break;
1298 case EXTRA_EXT_FB_NO_ATTACH_GS:
1299 api_check = GL_TRUE;
1300 if (ctx->Extensions.ARB_framebuffer_no_attachments &&
1301 (_mesa_is_desktop_gl(ctx) ||
1302 _mesa_has_OES_geometry_shader(ctx)))
1303 api_found = GL_TRUE;
1304 break;
1305 case EXTRA_EXT_ES_GS:
1306 api_check = GL_TRUE;
1307 if (_mesa_has_OES_geometry_shader(ctx))
1308 api_found = GL_TRUE;
1309 break;
1310 case EXTRA_END:
1311 break;
1312 default: /* *e is a offset into the extension struct */
1313 api_check = GL_TRUE;
1314 if (*(GLboolean *) ((char *) &ctx->Extensions + *e))
1315 api_found = GL_TRUE;
1316 break;
1317 }
1318 }
1319
1320 if (api_check && !api_found) {
1321 _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func,
1322 _mesa_enum_to_string(d->pname));
1323 return GL_FALSE;
1324 }
1325
1326 return GL_TRUE;
1327 }
1328
1329 static const struct value_desc error_value =
1330 { 0, 0, TYPE_INVALID, NO_OFFSET, NO_EXTRA };
1331
1332 /**
1333 * Find the struct value_desc corresponding to the enum 'pname'.
1334 *
1335 * We hash the enum value to get an index into the 'table' array,
1336 * which holds the index in the 'values' array of struct value_desc.
1337 * Once we've found the entry, we do the extra checks, if any, then
1338 * look up the value and return a pointer to it.
1339 *
1340 * If the value has to be computed (for example, it's the result of a
1341 * function call or we need to add 1 to it), we use the tmp 'v' to
1342 * store the result.
1343 *
1344 * \param func name of glGet*v() func for error reporting
1345 * \param pname the enum value we're looking up
1346 * \param p is were we return the pointer to the value
1347 * \param v a tmp union value variable in the calling glGet*v() function
1348 *
1349 * \return the struct value_desc corresponding to the enum or a struct
1350 * value_desc of TYPE_INVALID if not found. This lets the calling
1351 * glGet*v() function jump right into a switch statement and
1352 * handle errors there instead of having to check for NULL.
1353 */
1354 static const struct value_desc *
1355 find_value(const char *func, GLenum pname, void **p, union value *v)
1356 {
1357 GET_CURRENT_CONTEXT(ctx);
1358 struct gl_texture_unit *unit;
1359 int mask, hash;
1360 const struct value_desc *d;
1361 int api;
1362
1363 api = ctx->API;
1364 /* We index into the table_set[] list of per-API hash tables using the API's
1365 * value in the gl_api enum. Since GLES 3 doesn't have an API_OPENGL* enum
1366 * value since it's compatible with GLES2 its entry in table_set[] is at the
1367 * end.
1368 */
1369 STATIC_ASSERT(ARRAY_SIZE(table_set) == API_OPENGL_LAST + 3);
1370 if (_mesa_is_gles3(ctx)) {
1371 api = API_OPENGL_LAST + 1;
1372 }
1373 if (_mesa_is_gles31(ctx)) {
1374 api = API_OPENGL_LAST + 2;
1375 }
1376 mask = ARRAY_SIZE(table(api)) - 1;
1377 hash = (pname * prime_factor);
1378 while (1) {
1379 int idx = table(api)[hash & mask];
1380
1381 /* If the enum isn't valid, the hash walk ends with index 0,
1382 * pointing to the first entry of values[] which doesn't hold
1383 * any valid enum. */
1384 if (unlikely(idx == 0)) {
1385 _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func,
1386 _mesa_enum_to_string(pname));
1387 return &error_value;
1388 }
1389
1390 d = &values[idx];
1391 if (likely(d->pname == pname))
1392 break;
1393
1394 hash += prime_step;
1395 }
1396
1397 if (unlikely(d->extra && !check_extra(ctx, func, d)))
1398 return &error_value;
1399
1400 switch (d->location) {
1401 case LOC_BUFFER:
1402 *p = ((char *) ctx->DrawBuffer + d->offset);
1403 return d;
1404 case LOC_CONTEXT:
1405 *p = ((char *) ctx + d->offset);
1406 return d;
1407 case LOC_ARRAY:
1408 *p = ((char *) ctx->Array.VAO + d->offset);
1409 return d;
1410 case LOC_TEXUNIT:
1411 unit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
1412 *p = ((char *) unit + d->offset);
1413 return d;
1414 case LOC_CUSTOM:
1415 find_custom_value(ctx, d, v);
1416 *p = v;
1417 return d;
1418 default:
1419 assert(0);
1420 break;
1421 }
1422
1423 /* silence warning */
1424 return &error_value;
1425 }
1426
1427 static const int transpose[] = {
1428 0, 4, 8, 12,
1429 1, 5, 9, 13,
1430 2, 6, 10, 14,
1431 3, 7, 11, 15
1432 };
1433
1434 void GLAPIENTRY
1435 _mesa_GetBooleanv(GLenum pname, GLboolean *params)
1436 {
1437 const struct value_desc *d;
1438 union value v;
1439 GLmatrix *m;
1440 int shift, i;
1441 void *p;
1442
1443 d = find_value("glGetBooleanv", pname, &p, &v);
1444 switch (d->type) {
1445 case TYPE_INVALID:
1446 break;
1447 case TYPE_CONST:
1448 params[0] = INT_TO_BOOLEAN(d->offset);
1449 break;
1450
1451 case TYPE_FLOAT_4:
1452 case TYPE_FLOATN_4:
1453 params[3] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[3]);
1454 case TYPE_FLOAT_3:
1455 case TYPE_FLOATN_3:
1456 params[2] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[2]);
1457 case TYPE_FLOAT_2:
1458 case TYPE_FLOATN_2:
1459 params[1] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[1]);
1460 case TYPE_FLOAT:
1461 case TYPE_FLOATN:
1462 params[0] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[0]);
1463 break;
1464
1465 case TYPE_DOUBLEN_2:
1466 params[1] = FLOAT_TO_BOOLEAN(((GLdouble *) p)[1]);
1467 case TYPE_DOUBLEN:
1468 params[0] = FLOAT_TO_BOOLEAN(((GLdouble *) p)[0]);
1469 break;
1470
1471 case TYPE_INT_4:
1472 params[3] = INT_TO_BOOLEAN(((GLint *) p)[3]);
1473 case TYPE_INT_3:
1474 params[2] = INT_TO_BOOLEAN(((GLint *) p)[2]);
1475 case TYPE_INT_2:
1476 case TYPE_ENUM_2:
1477 params[1] = INT_TO_BOOLEAN(((GLint *) p)[1]);
1478 case TYPE_INT:
1479 case TYPE_ENUM:
1480 params[0] = INT_TO_BOOLEAN(((GLint *) p)[0]);
1481 break;
1482
1483 case TYPE_INT_N:
1484 for (i = 0; i < v.value_int_n.n; i++)
1485 params[i] = INT_TO_BOOLEAN(v.value_int_n.ints[i]);
1486 break;
1487
1488 case TYPE_INT64:
1489 params[0] = INT64_TO_BOOLEAN(((GLint64 *) p)[0]);
1490 break;
1491
1492 case TYPE_BOOLEAN:
1493 params[0] = ((GLboolean*) p)[0];
1494 break;
1495
1496 case TYPE_MATRIX:
1497 m = *(GLmatrix **) p;
1498 for (i = 0; i < 16; i++)
1499 params[i] = FLOAT_TO_BOOLEAN(m->m[i]);
1500 break;
1501
1502 case TYPE_MATRIX_T:
1503 m = *(GLmatrix **) p;
1504 for (i = 0; i < 16; i++)
1505 params[i] = FLOAT_TO_BOOLEAN(m->m[transpose[i]]);
1506 break;
1507
1508 case TYPE_BIT_0:
1509 case TYPE_BIT_1:
1510 case TYPE_BIT_2:
1511 case TYPE_BIT_3:
1512 case TYPE_BIT_4:
1513 case TYPE_BIT_5:
1514 case TYPE_BIT_6:
1515 case TYPE_BIT_7:
1516 shift = d->type - TYPE_BIT_0;
1517 params[0] = (*(GLbitfield *) p >> shift) & 1;
1518 break;
1519 }
1520 }
1521
1522 void GLAPIENTRY
1523 _mesa_GetFloatv(GLenum pname, GLfloat *params)
1524 {
1525 const struct value_desc *d;
1526 union value v;
1527 GLmatrix *m;
1528 int shift, i;
1529 void *p;
1530
1531 d = find_value("glGetFloatv", pname, &p, &v);
1532 switch (d->type) {
1533 case TYPE_INVALID:
1534 break;
1535 case TYPE_CONST:
1536 params[0] = (GLfloat) d->offset;
1537 break;
1538
1539 case TYPE_FLOAT_4:
1540 case TYPE_FLOATN_4:
1541 params[3] = ((GLfloat *) p)[3];
1542 case TYPE_FLOAT_3:
1543 case TYPE_FLOATN_3:
1544 params[2] = ((GLfloat *) p)[2];
1545 case TYPE_FLOAT_2:
1546 case TYPE_FLOATN_2:
1547 params[1] = ((GLfloat *) p)[1];
1548 case TYPE_FLOAT:
1549 case TYPE_FLOATN:
1550 params[0] = ((GLfloat *) p)[0];
1551 break;
1552
1553 case TYPE_DOUBLEN_2:
1554 params[1] = (GLfloat) (((GLdouble *) p)[1]);
1555 case TYPE_DOUBLEN:
1556 params[0] = (GLfloat) (((GLdouble *) p)[0]);
1557 break;
1558
1559 case TYPE_INT_4:
1560 params[3] = (GLfloat) (((GLint *) p)[3]);
1561 case TYPE_INT_3:
1562 params[2] = (GLfloat) (((GLint *) p)[2]);
1563 case TYPE_INT_2:
1564 case TYPE_ENUM_2:
1565 params[1] = (GLfloat) (((GLint *) p)[1]);
1566 case TYPE_INT:
1567 case TYPE_ENUM:
1568 params[0] = (GLfloat) (((GLint *) p)[0]);
1569 break;
1570
1571 case TYPE_INT_N:
1572 for (i = 0; i < v.value_int_n.n; i++)
1573 params[i] = INT_TO_FLOAT(v.value_int_n.ints[i]);
1574 break;
1575
1576 case TYPE_INT64:
1577 params[0] = (GLfloat) (((GLint64 *) p)[0]);
1578 break;
1579
1580 case TYPE_BOOLEAN:
1581 params[0] = BOOLEAN_TO_FLOAT(*(GLboolean*) p);
1582 break;
1583
1584 case TYPE_MATRIX:
1585 m = *(GLmatrix **) p;
1586 for (i = 0; i < 16; i++)
1587 params[i] = m->m[i];
1588 break;
1589
1590 case TYPE_MATRIX_T:
1591 m = *(GLmatrix **) p;
1592 for (i = 0; i < 16; i++)
1593 params[i] = m->m[transpose[i]];
1594 break;
1595
1596 case TYPE_BIT_0:
1597 case TYPE_BIT_1:
1598 case TYPE_BIT_2:
1599 case TYPE_BIT_3:
1600 case TYPE_BIT_4:
1601 case TYPE_BIT_5:
1602 case TYPE_BIT_6:
1603 case TYPE_BIT_7:
1604 shift = d->type - TYPE_BIT_0;
1605 params[0] = BOOLEAN_TO_FLOAT((*(GLbitfield *) p >> shift) & 1);
1606 break;
1607 }
1608 }
1609
1610 void GLAPIENTRY
1611 _mesa_GetIntegerv(GLenum pname, GLint *params)
1612 {
1613 const struct value_desc *d;
1614 union value v;
1615 GLmatrix *m;
1616 int shift, i;
1617 void *p;
1618
1619 d = find_value("glGetIntegerv", pname, &p, &v);
1620 switch (d->type) {
1621 case TYPE_INVALID:
1622 break;
1623 case TYPE_CONST:
1624 params[0] = d->offset;
1625 break;
1626
1627 case TYPE_FLOAT_4:
1628 params[3] = IROUND(((GLfloat *) p)[3]);
1629 case TYPE_FLOAT_3:
1630 params[2] = IROUND(((GLfloat *) p)[2]);
1631 case TYPE_FLOAT_2:
1632 params[1] = IROUND(((GLfloat *) p)[1]);
1633 case TYPE_FLOAT:
1634 params[0] = IROUND(((GLfloat *) p)[0]);
1635 break;
1636
1637 case TYPE_FLOATN_4:
1638 params[3] = FLOAT_TO_INT(((GLfloat *) p)[3]);
1639 case TYPE_FLOATN_3:
1640 params[2] = FLOAT_TO_INT(((GLfloat *) p)[2]);
1641 case TYPE_FLOATN_2:
1642 params[1] = FLOAT_TO_INT(((GLfloat *) p)[1]);
1643 case TYPE_FLOATN:
1644 params[0] = FLOAT_TO_INT(((GLfloat *) p)[0]);
1645 break;
1646
1647 case TYPE_DOUBLEN_2:
1648 params[1] = FLOAT_TO_INT(((GLdouble *) p)[1]);
1649 case TYPE_DOUBLEN:
1650 params[0] = FLOAT_TO_INT(((GLdouble *) p)[0]);
1651 break;
1652
1653 case TYPE_INT_4:
1654 params[3] = ((GLint *) p)[3];
1655 case TYPE_INT_3:
1656 params[2] = ((GLint *) p)[2];
1657 case TYPE_INT_2:
1658 case TYPE_ENUM_2:
1659 params[1] = ((GLint *) p)[1];
1660 case TYPE_INT:
1661 case TYPE_ENUM:
1662 params[0] = ((GLint *) p)[0];
1663 break;
1664
1665 case TYPE_INT_N:
1666 for (i = 0; i < v.value_int_n.n; i++)
1667 params[i] = v.value_int_n.ints[i];
1668 break;
1669
1670 case TYPE_INT64:
1671 params[0] = INT64_TO_INT(((GLint64 *) p)[0]);
1672 break;
1673
1674 case TYPE_BOOLEAN:
1675 params[0] = BOOLEAN_TO_INT(*(GLboolean*) p);
1676 break;
1677
1678 case TYPE_MATRIX:
1679 m = *(GLmatrix **) p;
1680 for (i = 0; i < 16; i++)
1681 params[i] = FLOAT_TO_INT(m->m[i]);
1682 break;
1683
1684 case TYPE_MATRIX_T:
1685 m = *(GLmatrix **) p;
1686 for (i = 0; i < 16; i++)
1687 params[i] = FLOAT_TO_INT(m->m[transpose[i]]);
1688 break;
1689
1690 case TYPE_BIT_0:
1691 case TYPE_BIT_1:
1692 case TYPE_BIT_2:
1693 case TYPE_BIT_3:
1694 case TYPE_BIT_4:
1695 case TYPE_BIT_5:
1696 case TYPE_BIT_6:
1697 case TYPE_BIT_7:
1698 shift = d->type - TYPE_BIT_0;
1699 params[0] = (*(GLbitfield *) p >> shift) & 1;
1700 break;
1701 }
1702 }
1703
1704 void GLAPIENTRY
1705 _mesa_GetInteger64v(GLenum pname, GLint64 *params)
1706 {
1707 const struct value_desc *d;
1708 union value v;
1709 GLmatrix *m;
1710 int shift, i;
1711 void *p;
1712
1713 d = find_value("glGetInteger64v", pname, &p, &v);
1714 switch (d->type) {
1715 case TYPE_INVALID:
1716 break;
1717 case TYPE_CONST:
1718 params[0] = d->offset;
1719 break;
1720
1721 case TYPE_FLOAT_4:
1722 params[3] = IROUND64(((GLfloat *) p)[3]);
1723 case TYPE_FLOAT_3:
1724 params[2] = IROUND64(((GLfloat *) p)[2]);
1725 case TYPE_FLOAT_2:
1726 params[1] = IROUND64(((GLfloat *) p)[1]);
1727 case TYPE_FLOAT:
1728 params[0] = IROUND64(((GLfloat *) p)[0]);
1729 break;
1730
1731 case TYPE_FLOATN_4:
1732 params[3] = FLOAT_TO_INT(((GLfloat *) p)[3]);
1733 case TYPE_FLOATN_3:
1734 params[2] = FLOAT_TO_INT(((GLfloat *) p)[2]);
1735 case TYPE_FLOATN_2:
1736 params[1] = FLOAT_TO_INT(((GLfloat *) p)[1]);
1737 case TYPE_FLOATN:
1738 params[0] = FLOAT_TO_INT(((GLfloat *) p)[0]);
1739 break;
1740
1741 case TYPE_DOUBLEN_2:
1742 params[1] = FLOAT_TO_INT(((GLdouble *) p)[1]);
1743 case TYPE_DOUBLEN:
1744 params[0] = FLOAT_TO_INT(((GLdouble *) p)[0]);
1745 break;
1746
1747 case TYPE_INT_4:
1748 params[3] = ((GLint *) p)[3];
1749 case TYPE_INT_3:
1750 params[2] = ((GLint *) p)[2];
1751 case TYPE_INT_2:
1752 case TYPE_ENUM_2:
1753 params[1] = ((GLint *) p)[1];
1754 case TYPE_INT:
1755 case TYPE_ENUM:
1756 params[0] = ((GLint *) p)[0];
1757 break;
1758
1759 case TYPE_INT_N:
1760 for (i = 0; i < v.value_int_n.n; i++)
1761 params[i] = INT_TO_BOOLEAN(v.value_int_n.ints[i]);
1762 break;
1763
1764 case TYPE_INT64:
1765 params[0] = ((GLint64 *) p)[0];
1766 break;
1767
1768 case TYPE_BOOLEAN:
1769 params[0] = ((GLboolean*) p)[0];
1770 break;
1771
1772 case TYPE_MATRIX:
1773 m = *(GLmatrix **) p;
1774 for (i = 0; i < 16; i++)
1775 params[i] = FLOAT_TO_INT64(m->m[i]);
1776 break;
1777
1778 case TYPE_MATRIX_T:
1779 m = *(GLmatrix **) p;
1780 for (i = 0; i < 16; i++)
1781 params[i] = FLOAT_TO_INT64(m->m[transpose[i]]);
1782 break;
1783
1784 case TYPE_BIT_0:
1785 case TYPE_BIT_1:
1786 case TYPE_BIT_2:
1787 case TYPE_BIT_3:
1788 case TYPE_BIT_4:
1789 case TYPE_BIT_5:
1790 case TYPE_BIT_6:
1791 case TYPE_BIT_7:
1792 shift = d->type - TYPE_BIT_0;
1793 params[0] = (*(GLbitfield *) p >> shift) & 1;
1794 break;
1795 }
1796 }
1797
1798 void GLAPIENTRY
1799 _mesa_GetDoublev(GLenum pname, GLdouble *params)
1800 {
1801 const struct value_desc *d;
1802 union value v;
1803 GLmatrix *m;
1804 int shift, i;
1805 void *p;
1806
1807 d = find_value("glGetDoublev", pname, &p, &v);
1808 switch (d->type) {
1809 case TYPE_INVALID:
1810 break;
1811 case TYPE_CONST:
1812 params[0] = d->offset;
1813 break;
1814
1815 case TYPE_FLOAT_4:
1816 case TYPE_FLOATN_4:
1817 params[3] = ((GLfloat *) p)[3];
1818 case TYPE_FLOAT_3:
1819 case TYPE_FLOATN_3:
1820 params[2] = ((GLfloat *) p)[2];
1821 case TYPE_FLOAT_2:
1822 case TYPE_FLOATN_2:
1823 params[1] = ((GLfloat *) p)[1];
1824 case TYPE_FLOAT:
1825 case TYPE_FLOATN:
1826 params[0] = ((GLfloat *) p)[0];
1827 break;
1828
1829 case TYPE_DOUBLEN_2:
1830 params[1] = ((GLdouble *) p)[1];
1831 case TYPE_DOUBLEN:
1832 params[0] = ((GLdouble *) p)[0];
1833 break;
1834
1835 case TYPE_INT_4:
1836 params[3] = ((GLint *) p)[3];
1837 case TYPE_INT_3:
1838 params[2] = ((GLint *) p)[2];
1839 case TYPE_INT_2:
1840 case TYPE_ENUM_2:
1841 params[1] = ((GLint *) p)[1];
1842 case TYPE_INT:
1843 case TYPE_ENUM:
1844 params[0] = ((GLint *) p)[0];
1845 break;
1846
1847 case TYPE_INT_N:
1848 for (i = 0; i < v.value_int_n.n; i++)
1849 params[i] = v.value_int_n.ints[i];
1850 break;
1851
1852 case TYPE_INT64:
1853 params[0] = (GLdouble) (((GLint64 *) p)[0]);
1854 break;
1855
1856 case TYPE_BOOLEAN:
1857 params[0] = *(GLboolean*) p;
1858 break;
1859
1860 case TYPE_MATRIX:
1861 m = *(GLmatrix **) p;
1862 for (i = 0; i < 16; i++)
1863 params[i] = m->m[i];
1864 break;
1865
1866 case TYPE_MATRIX_T:
1867 m = *(GLmatrix **) p;
1868 for (i = 0; i < 16; i++)
1869 params[i] = m->m[transpose[i]];
1870 break;
1871
1872 case TYPE_BIT_0:
1873 case TYPE_BIT_1:
1874 case TYPE_BIT_2:
1875 case TYPE_BIT_3:
1876 case TYPE_BIT_4:
1877 case TYPE_BIT_5:
1878 case TYPE_BIT_6:
1879 case TYPE_BIT_7:
1880 shift = d->type - TYPE_BIT_0;
1881 params[0] = (*(GLbitfield *) p >> shift) & 1;
1882 break;
1883 }
1884 }
1885
1886 /**
1887 * Convert a GL texture binding enum such as GL_TEXTURE_BINDING_2D
1888 * into the corresponding Mesa texture target index.
1889 * \return TEXTURE_x_INDEX or -1 if binding is invalid
1890 */
1891 static int
1892 tex_binding_to_index(const struct gl_context *ctx, GLenum binding)
1893 {
1894 switch (binding) {
1895 case GL_TEXTURE_BINDING_1D:
1896 return _mesa_is_desktop_gl(ctx) ? TEXTURE_1D_INDEX : -1;
1897 case GL_TEXTURE_BINDING_2D:
1898 return TEXTURE_2D_INDEX;
1899 case GL_TEXTURE_BINDING_3D:
1900 return ctx->API != API_OPENGLES ? TEXTURE_3D_INDEX : -1;
1901 case GL_TEXTURE_BINDING_CUBE_MAP:
1902 return ctx->Extensions.ARB_texture_cube_map
1903 ? TEXTURE_CUBE_INDEX : -1;
1904 case GL_TEXTURE_BINDING_RECTANGLE:
1905 return _mesa_is_desktop_gl(ctx) && ctx->Extensions.NV_texture_rectangle
1906 ? TEXTURE_RECT_INDEX : -1;
1907 case GL_TEXTURE_BINDING_1D_ARRAY:
1908 return _mesa_is_desktop_gl(ctx) && ctx->Extensions.EXT_texture_array
1909 ? TEXTURE_1D_ARRAY_INDEX : -1;
1910 case GL_TEXTURE_BINDING_2D_ARRAY:
1911 return (_mesa_is_desktop_gl(ctx) && ctx->Extensions.EXT_texture_array)
1912 || _mesa_is_gles3(ctx)
1913 ? TEXTURE_2D_ARRAY_INDEX : -1;
1914 case GL_TEXTURE_BINDING_BUFFER:
1915 return (_mesa_has_ARB_texture_buffer_object(ctx) ||
1916 _mesa_has_OES_texture_buffer(ctx)) ?
1917 TEXTURE_BUFFER_INDEX : -1;
1918 case GL_TEXTURE_BINDING_CUBE_MAP_ARRAY:
1919 return _mesa_is_desktop_gl(ctx) && ctx->Extensions.ARB_texture_cube_map_array
1920 ? TEXTURE_CUBE_ARRAY_INDEX : -1;
1921 case GL_TEXTURE_BINDING_2D_MULTISAMPLE:
1922 return _mesa_is_desktop_gl(ctx) && ctx->Extensions.ARB_texture_multisample
1923 ? TEXTURE_2D_MULTISAMPLE_INDEX : -1;
1924 case GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY:
1925 return _mesa_is_desktop_gl(ctx) && ctx->Extensions.ARB_texture_multisample
1926 ? TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX : -1;
1927 default:
1928 return -1;
1929 }
1930 }
1931
1932 static enum value_type
1933 find_value_indexed(const char *func, GLenum pname, GLuint index, union value *v)
1934 {
1935 GET_CURRENT_CONTEXT(ctx);
1936
1937 switch (pname) {
1938
1939 case GL_BLEND:
1940 if (index >= ctx->Const.MaxDrawBuffers)
1941 goto invalid_value;
1942 if (!ctx->Extensions.EXT_draw_buffers2)
1943 goto invalid_enum;
1944 v->value_int = (ctx->Color.BlendEnabled >> index) & 1;
1945 return TYPE_INT;
1946
1947 case GL_BLEND_SRC:
1948 /* fall-through */
1949 case GL_BLEND_SRC_RGB:
1950 if (index >= ctx->Const.MaxDrawBuffers)
1951 goto invalid_value;
1952 if (!ctx->Extensions.ARB_draw_buffers_blend)
1953 goto invalid_enum;
1954 v->value_int = ctx->Color.Blend[index].SrcRGB;
1955 return TYPE_INT;
1956 case GL_BLEND_SRC_ALPHA:
1957 if (index >= ctx->Const.MaxDrawBuffers)
1958 goto invalid_value;
1959 if (!ctx->Extensions.ARB_draw_buffers_blend)
1960 goto invalid_enum;
1961 v->value_int = ctx->Color.Blend[index].SrcA;
1962 return TYPE_INT;
1963 case GL_BLEND_DST:
1964 /* fall-through */
1965 case GL_BLEND_DST_RGB:
1966 if (index >= ctx->Const.MaxDrawBuffers)
1967 goto invalid_value;
1968 if (!ctx->Extensions.ARB_draw_buffers_blend)
1969 goto invalid_enum;
1970 v->value_int = ctx->Color.Blend[index].DstRGB;
1971 return TYPE_INT;
1972 case GL_BLEND_DST_ALPHA:
1973 if (index >= ctx->Const.MaxDrawBuffers)
1974 goto invalid_value;
1975 if (!ctx->Extensions.ARB_draw_buffers_blend)
1976 goto invalid_enum;
1977 v->value_int = ctx->Color.Blend[index].DstA;
1978 return TYPE_INT;
1979 case GL_BLEND_EQUATION_RGB:
1980 if (index >= ctx->Const.MaxDrawBuffers)
1981 goto invalid_value;
1982 if (!ctx->Extensions.ARB_draw_buffers_blend)
1983 goto invalid_enum;
1984 v->value_int = ctx->Color.Blend[index].EquationRGB;
1985 return TYPE_INT;
1986 case GL_BLEND_EQUATION_ALPHA:
1987 if (index >= ctx->Const.MaxDrawBuffers)
1988 goto invalid_value;
1989 if (!ctx->Extensions.ARB_draw_buffers_blend)
1990 goto invalid_enum;
1991 v->value_int = ctx->Color.Blend[index].EquationA;
1992 return TYPE_INT;
1993
1994 case GL_COLOR_WRITEMASK:
1995 if (index >= ctx->Const.MaxDrawBuffers)
1996 goto invalid_value;
1997 if (!ctx->Extensions.EXT_draw_buffers2)
1998 goto invalid_enum;
1999 v->value_int_4[0] = ctx->Color.ColorMask[index][RCOMP] ? 1 : 0;
2000 v->value_int_4[1] = ctx->Color.ColorMask[index][GCOMP] ? 1 : 0;
2001 v->value_int_4[2] = ctx->Color.ColorMask[index][BCOMP] ? 1 : 0;
2002 v->value_int_4[3] = ctx->Color.ColorMask[index][ACOMP] ? 1 : 0;
2003 return TYPE_INT_4;
2004
2005 case GL_SCISSOR_BOX:
2006 if (index >= ctx->Const.MaxViewports)
2007 goto invalid_value;
2008 v->value_int_4[0] = ctx->Scissor.ScissorArray[index].X;
2009 v->value_int_4[1] = ctx->Scissor.ScissorArray[index].Y;
2010 v->value_int_4[2] = ctx->Scissor.ScissorArray[index].Width;
2011 v->value_int_4[3] = ctx->Scissor.ScissorArray[index].Height;
2012 return TYPE_INT_4;
2013
2014 case GL_VIEWPORT:
2015 if (index >= ctx->Const.MaxViewports)
2016 goto invalid_value;
2017 v->value_float_4[0] = ctx->ViewportArray[index].X;
2018 v->value_float_4[1] = ctx->ViewportArray[index].Y;
2019 v->value_float_4[2] = ctx->ViewportArray[index].Width;
2020 v->value_float_4[3] = ctx->ViewportArray[index].Height;
2021 return TYPE_FLOAT_4;
2022
2023 case GL_DEPTH_RANGE:
2024 if (index >= ctx->Const.MaxViewports)
2025 goto invalid_value;
2026 v->value_double_2[0] = ctx->ViewportArray[index].Near;
2027 v->value_double_2[1] = ctx->ViewportArray[index].Far;
2028 return TYPE_DOUBLEN_2;
2029
2030 case GL_TRANSFORM_FEEDBACK_BUFFER_START:
2031 if (index >= ctx->Const.MaxTransformFeedbackBuffers)
2032 goto invalid_value;
2033 if (!ctx->Extensions.EXT_transform_feedback)
2034 goto invalid_enum;
2035 v->value_int64 = ctx->TransformFeedback.CurrentObject->Offset[index];
2036 return TYPE_INT64;
2037
2038 case GL_TRANSFORM_FEEDBACK_BUFFER_SIZE:
2039 if (index >= ctx->Const.MaxTransformFeedbackBuffers)
2040 goto invalid_value;
2041 if (!ctx->Extensions.EXT_transform_feedback)
2042 goto invalid_enum;
2043 v->value_int64
2044 = ctx->TransformFeedback.CurrentObject->RequestedSize[index];
2045 return TYPE_INT64;
2046
2047 case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING:
2048 if (index >= ctx->Const.MaxTransformFeedbackBuffers)
2049 goto invalid_value;
2050 if (!ctx->Extensions.EXT_transform_feedback)
2051 goto invalid_enum;
2052 v->value_int = ctx->TransformFeedback.CurrentObject->BufferNames[index];
2053 return TYPE_INT;
2054
2055 case GL_UNIFORM_BUFFER_BINDING:
2056 if (index >= ctx->Const.MaxUniformBufferBindings)
2057 goto invalid_value;
2058 if (!ctx->Extensions.ARB_uniform_buffer_object)
2059 goto invalid_enum;
2060 v->value_int = ctx->UniformBufferBindings[index].BufferObject->Name;
2061 return TYPE_INT;
2062
2063 case GL_UNIFORM_BUFFER_START:
2064 if (index >= ctx->Const.MaxUniformBufferBindings)
2065 goto invalid_value;
2066 if (!ctx->Extensions.ARB_uniform_buffer_object)
2067 goto invalid_enum;
2068 v->value_int = ctx->UniformBufferBindings[index].Offset < 0 ? 0 :
2069 ctx->UniformBufferBindings[index].Offset;
2070 return TYPE_INT;
2071
2072 case GL_UNIFORM_BUFFER_SIZE:
2073 if (index >= ctx->Const.MaxUniformBufferBindings)
2074 goto invalid_value;
2075 if (!ctx->Extensions.ARB_uniform_buffer_object)
2076 goto invalid_enum;
2077 v->value_int = ctx->UniformBufferBindings[index].Size < 0 ? 0 :
2078 ctx->UniformBufferBindings[index].Size;
2079 return TYPE_INT;
2080
2081 /* ARB_shader_storage_buffer_object */
2082 case GL_SHADER_STORAGE_BUFFER_BINDING:
2083 if (!ctx->Extensions.ARB_shader_storage_buffer_object)
2084 goto invalid_enum;
2085 if (index >= ctx->Const.MaxShaderStorageBufferBindings)
2086 goto invalid_value;
2087 v->value_int = ctx->ShaderStorageBufferBindings[index].BufferObject->Name;
2088 return TYPE_INT;
2089
2090 case GL_SHADER_STORAGE_BUFFER_START:
2091 if (!ctx->Extensions.ARB_shader_storage_buffer_object)
2092 goto invalid_enum;
2093 if (index >= ctx->Const.MaxShaderStorageBufferBindings)
2094 goto invalid_value;
2095 v->value_int = ctx->ShaderStorageBufferBindings[index].Offset < 0 ? 0 :
2096 ctx->ShaderStorageBufferBindings[index].Offset;
2097 return TYPE_INT;
2098
2099 case GL_SHADER_STORAGE_BUFFER_SIZE:
2100 if (!ctx->Extensions.ARB_shader_storage_buffer_object)
2101 goto invalid_enum;
2102 if (index >= ctx->Const.MaxShaderStorageBufferBindings)
2103 goto invalid_value;
2104 v->value_int = ctx->ShaderStorageBufferBindings[index].Size < 0 ? 0 :
2105 ctx->ShaderStorageBufferBindings[index].Size;
2106 return TYPE_INT;
2107
2108 /* ARB_texture_multisample / GL3.2 */
2109 case GL_SAMPLE_MASK_VALUE:
2110 if (index != 0)
2111 goto invalid_value;
2112 if (!ctx->Extensions.ARB_texture_multisample)
2113 goto invalid_enum;
2114 v->value_int = ctx->Multisample.SampleMaskValue;
2115 return TYPE_INT;
2116
2117 case GL_ATOMIC_COUNTER_BUFFER_BINDING:
2118 if (!ctx->Extensions.ARB_shader_atomic_counters)
2119 goto invalid_enum;
2120 if (index >= ctx->Const.MaxAtomicBufferBindings)
2121 goto invalid_value;
2122 v->value_int = ctx->AtomicBufferBindings[index].BufferObject->Name;
2123 return TYPE_INT;
2124
2125 case GL_ATOMIC_COUNTER_BUFFER_START:
2126 if (!ctx->Extensions.ARB_shader_atomic_counters)
2127 goto invalid_enum;
2128 if (index >= ctx->Const.MaxAtomicBufferBindings)
2129 goto invalid_value;
2130 v->value_int64 = ctx->AtomicBufferBindings[index].Offset;
2131 return TYPE_INT64;
2132
2133 case GL_ATOMIC_COUNTER_BUFFER_SIZE:
2134 if (!ctx->Extensions.ARB_shader_atomic_counters)
2135 goto invalid_enum;
2136 if (index >= ctx->Const.MaxAtomicBufferBindings)
2137 goto invalid_value;
2138 v->value_int64 = ctx->AtomicBufferBindings[index].Size;
2139 return TYPE_INT64;
2140
2141 case GL_VERTEX_BINDING_DIVISOR:
2142 if ((!_mesa_is_desktop_gl(ctx) || !ctx->Extensions.ARB_instanced_arrays) &&
2143 !_mesa_is_gles31(ctx))
2144 goto invalid_enum;
2145 if (index >= ctx->Const.Program[MESA_SHADER_VERTEX].MaxAttribs)
2146 goto invalid_value;
2147 v->value_int = ctx->Array.VAO->VertexBinding[VERT_ATTRIB_GENERIC(index)].InstanceDivisor;
2148 return TYPE_INT;
2149
2150 case GL_VERTEX_BINDING_OFFSET:
2151 if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles31(ctx))
2152 goto invalid_enum;
2153 if (index >= ctx->Const.Program[MESA_SHADER_VERTEX].MaxAttribs)
2154 goto invalid_value;
2155 v->value_int = ctx->Array.VAO->VertexBinding[VERT_ATTRIB_GENERIC(index)].Offset;
2156 return TYPE_INT;
2157
2158 case GL_VERTEX_BINDING_STRIDE:
2159 if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles31(ctx))
2160 goto invalid_enum;
2161 if (index >= ctx->Const.Program[MESA_SHADER_VERTEX].MaxAttribs)
2162 goto invalid_value;
2163 v->value_int = ctx->Array.VAO->VertexBinding[VERT_ATTRIB_GENERIC(index)].Stride;
2164 return TYPE_INT;
2165
2166 case GL_VERTEX_BINDING_BUFFER:
2167 if (ctx->API == API_OPENGLES2 && ctx->Version < 31)
2168 goto invalid_enum;
2169 if (index >= ctx->Const.Program[MESA_SHADER_VERTEX].MaxAttribs)
2170 goto invalid_value;
2171 v->value_int = ctx->Array.VAO->VertexBinding[VERT_ATTRIB_GENERIC(index)].BufferObj->Name;
2172 return TYPE_INT;
2173
2174 /* ARB_shader_image_load_store */
2175 case GL_IMAGE_BINDING_NAME: {
2176 struct gl_texture_object *t;
2177
2178 if (!ctx->Extensions.ARB_shader_image_load_store)
2179 goto invalid_enum;
2180 if (index >= ctx->Const.MaxImageUnits)
2181 goto invalid_value;
2182
2183 t = ctx->ImageUnits[index].TexObj;
2184 v->value_int = (t ? t->Name : 0);
2185 return TYPE_INT;
2186 }
2187
2188 case GL_IMAGE_BINDING_LEVEL:
2189 if (!ctx->Extensions.ARB_shader_image_load_store)
2190 goto invalid_enum;
2191 if (index >= ctx->Const.MaxImageUnits)
2192 goto invalid_value;
2193
2194 v->value_int = ctx->ImageUnits[index].Level;
2195 return TYPE_INT;
2196
2197 case GL_IMAGE_BINDING_LAYERED:
2198 if (!ctx->Extensions.ARB_shader_image_load_store)
2199 goto invalid_enum;
2200 if (index >= ctx->Const.MaxImageUnits)
2201 goto invalid_value;
2202
2203 v->value_int = ctx->ImageUnits[index].Layered;
2204 return TYPE_INT;
2205
2206 case GL_IMAGE_BINDING_LAYER:
2207 if (!ctx->Extensions.ARB_shader_image_load_store)
2208 goto invalid_enum;
2209 if (index >= ctx->Const.MaxImageUnits)
2210 goto invalid_value;
2211
2212 v->value_int = ctx->ImageUnits[index].Layer;
2213 return TYPE_INT;
2214
2215 case GL_IMAGE_BINDING_ACCESS:
2216 if (!ctx->Extensions.ARB_shader_image_load_store)
2217 goto invalid_enum;
2218 if (index >= ctx->Const.MaxImageUnits)
2219 goto invalid_value;
2220
2221 v->value_int = ctx->ImageUnits[index].Access;
2222 return TYPE_INT;
2223
2224 case GL_IMAGE_BINDING_FORMAT:
2225 if (!ctx->Extensions.ARB_shader_image_load_store)
2226 goto invalid_enum;
2227 if (index >= ctx->Const.MaxImageUnits)
2228 goto invalid_value;
2229
2230 v->value_int = ctx->ImageUnits[index].Format;
2231 return TYPE_INT;
2232
2233 /* ARB_direct_state_access */
2234 case GL_TEXTURE_BINDING_1D:
2235 case GL_TEXTURE_BINDING_1D_ARRAY:
2236 case GL_TEXTURE_BINDING_2D:
2237 case GL_TEXTURE_BINDING_2D_ARRAY:
2238 case GL_TEXTURE_BINDING_2D_MULTISAMPLE:
2239 case GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY:
2240 case GL_TEXTURE_BINDING_3D:
2241 case GL_TEXTURE_BINDING_BUFFER:
2242 case GL_TEXTURE_BINDING_CUBE_MAP:
2243 case GL_TEXTURE_BINDING_CUBE_MAP_ARRAY:
2244 case GL_TEXTURE_BINDING_RECTANGLE: {
2245 int target;
2246
2247 if (ctx->API != API_OPENGL_CORE)
2248 goto invalid_enum;
2249 target = tex_binding_to_index(ctx, pname);
2250 if (target < 0)
2251 goto invalid_enum;
2252 if (index >= _mesa_max_tex_unit(ctx))
2253 goto invalid_value;
2254
2255 v->value_int = ctx->Texture.Unit[index].CurrentTex[target]->Name;
2256 return TYPE_INT;
2257 }
2258
2259 case GL_SAMPLER_BINDING: {
2260 struct gl_sampler_object *samp;
2261
2262 if (ctx->API != API_OPENGL_CORE)
2263 goto invalid_enum;
2264 if (index >= _mesa_max_tex_unit(ctx))
2265 goto invalid_value;
2266
2267 samp = ctx->Texture.Unit[index].Sampler;
2268 v->value_int = samp ? samp->Name : 0;
2269 return TYPE_INT;
2270 }
2271
2272 case GL_MAX_COMPUTE_WORK_GROUP_COUNT:
2273 if (!_mesa_has_compute_shaders(ctx))
2274 goto invalid_enum;
2275 if (index >= 3)
2276 goto invalid_value;
2277 v->value_int = ctx->Const.MaxComputeWorkGroupCount[index];
2278 return TYPE_INT;
2279
2280 case GL_MAX_COMPUTE_WORK_GROUP_SIZE:
2281 if (!_mesa_has_compute_shaders(ctx))
2282 goto invalid_enum;
2283 if (index >= 3)
2284 goto invalid_value;
2285 v->value_int = ctx->Const.MaxComputeWorkGroupSize[index];
2286 return TYPE_INT;
2287 }
2288
2289 invalid_enum:
2290 _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func,
2291 _mesa_enum_to_string(pname));
2292 return TYPE_INVALID;
2293 invalid_value:
2294 _mesa_error(ctx, GL_INVALID_VALUE, "%s(pname=%s)", func,
2295 _mesa_enum_to_string(pname));
2296 return TYPE_INVALID;
2297 }
2298
2299 void GLAPIENTRY
2300 _mesa_GetBooleani_v( GLenum pname, GLuint index, GLboolean *params )
2301 {
2302 union value v;
2303 enum value_type type =
2304 find_value_indexed("glGetBooleani_v", pname, index, &v);
2305
2306 switch (type) {
2307 case TYPE_INT:
2308 params[0] = INT_TO_BOOLEAN(v.value_int);
2309 break;
2310 case TYPE_INT_4:
2311 params[0] = INT_TO_BOOLEAN(v.value_int_4[0]);
2312 params[1] = INT_TO_BOOLEAN(v.value_int_4[1]);
2313 params[2] = INT_TO_BOOLEAN(v.value_int_4[2]);
2314 params[3] = INT_TO_BOOLEAN(v.value_int_4[3]);
2315 break;
2316 case TYPE_INT64:
2317 params[0] = INT64_TO_BOOLEAN(v.value_int64);
2318 break;
2319 default:
2320 ; /* nothing - GL error was recorded */
2321 }
2322 }
2323
2324 void GLAPIENTRY
2325 _mesa_GetIntegeri_v( GLenum pname, GLuint index, GLint *params )
2326 {
2327 union value v;
2328 enum value_type type =
2329 find_value_indexed("glGetIntegeri_v", pname, index, &v);
2330
2331 switch (type) {
2332 case TYPE_FLOAT_4:
2333 case TYPE_FLOATN_4:
2334 params[3] = IROUND(v.value_float_4[3]);
2335 case TYPE_FLOAT_3:
2336 case TYPE_FLOATN_3:
2337 params[2] = IROUND(v.value_float_4[2]);
2338 case TYPE_FLOAT_2:
2339 case TYPE_FLOATN_2:
2340 params[1] = IROUND(v.value_float_4[1]);
2341 case TYPE_FLOAT:
2342 case TYPE_FLOATN:
2343 params[0] = IROUND(v.value_float_4[0]);
2344 break;
2345
2346 case TYPE_DOUBLEN_2:
2347 params[1] = IROUND(v.value_double_2[1]);
2348 case TYPE_DOUBLEN:
2349 params[0] = IROUND(v.value_double_2[0]);
2350 break;
2351
2352 case TYPE_INT:
2353 params[0] = v.value_int;
2354 break;
2355 case TYPE_INT_4:
2356 params[0] = v.value_int_4[0];
2357 params[1] = v.value_int_4[1];
2358 params[2] = v.value_int_4[2];
2359 params[3] = v.value_int_4[3];
2360 break;
2361 case TYPE_INT64:
2362 params[0] = INT64_TO_INT(v.value_int64);
2363 break;
2364 default:
2365 ; /* nothing - GL error was recorded */
2366 }
2367 }
2368
2369 void GLAPIENTRY
2370 _mesa_GetInteger64i_v( GLenum pname, GLuint index, GLint64 *params )
2371 {
2372 union value v;
2373 enum value_type type =
2374 find_value_indexed("glGetInteger64i_v", pname, index, &v);
2375
2376 switch (type) {
2377 case TYPE_INT:
2378 params[0] = v.value_int;
2379 break;
2380 case TYPE_INT_4:
2381 params[0] = v.value_int_4[0];
2382 params[1] = v.value_int_4[1];
2383 params[2] = v.value_int_4[2];
2384 params[3] = v.value_int_4[3];
2385 break;
2386 case TYPE_INT64:
2387 params[0] = v.value_int64;
2388 break;
2389 default:
2390 ; /* nothing - GL error was recorded */
2391 }
2392 }
2393
2394 void GLAPIENTRY
2395 _mesa_GetFloati_v(GLenum pname, GLuint index, GLfloat *params)
2396 {
2397 int i;
2398 GLmatrix *m;
2399 union value v;
2400 enum value_type type =
2401 find_value_indexed("glGetFloati_v", pname, index, &v);
2402
2403 switch (type) {
2404 case TYPE_FLOAT_4:
2405 case TYPE_FLOATN_4:
2406 params[3] = v.value_float_4[3];
2407 case TYPE_FLOAT_3:
2408 case TYPE_FLOATN_3:
2409 params[2] = v.value_float_4[2];
2410 case TYPE_FLOAT_2:
2411 case TYPE_FLOATN_2:
2412 params[1] = v.value_float_4[1];
2413 case TYPE_FLOAT:
2414 case TYPE_FLOATN:
2415 params[0] = v.value_float_4[0];
2416 break;
2417
2418 case TYPE_DOUBLEN_2:
2419 params[1] = (GLfloat) v.value_double_2[1];
2420 case TYPE_DOUBLEN:
2421 params[0] = (GLfloat) v.value_double_2[0];
2422 break;
2423
2424 case TYPE_INT_4:
2425 params[3] = (GLfloat) v.value_int_4[3];
2426 case TYPE_INT_3:
2427 params[2] = (GLfloat) v.value_int_4[2];
2428 case TYPE_INT_2:
2429 case TYPE_ENUM_2:
2430 params[1] = (GLfloat) v.value_int_4[1];
2431 case TYPE_INT:
2432 case TYPE_ENUM:
2433 params[0] = (GLfloat) v.value_int_4[0];
2434 break;
2435
2436 case TYPE_INT_N:
2437 for (i = 0; i < v.value_int_n.n; i++)
2438 params[i] = INT_TO_FLOAT(v.value_int_n.ints[i]);
2439 break;
2440
2441 case TYPE_INT64:
2442 params[0] = (GLfloat) v.value_int64;
2443 break;
2444
2445 case TYPE_BOOLEAN:
2446 params[0] = BOOLEAN_TO_FLOAT(v.value_bool);
2447 break;
2448
2449 case TYPE_MATRIX:
2450 m = *(GLmatrix **) &v;
2451 for (i = 0; i < 16; i++)
2452 params[i] = m->m[i];
2453 break;
2454
2455 case TYPE_MATRIX_T:
2456 m = *(GLmatrix **) &v;
2457 for (i = 0; i < 16; i++)
2458 params[i] = m->m[transpose[i]];
2459 break;
2460
2461 default:
2462 ;
2463 }
2464 }
2465
2466 void GLAPIENTRY
2467 _mesa_GetDoublei_v(GLenum pname, GLuint index, GLdouble *params)
2468 {
2469 int i;
2470 GLmatrix *m;
2471 union value v;
2472 enum value_type type =
2473 find_value_indexed("glGetDoublei_v", pname, index, &v);
2474
2475 switch (type) {
2476 case TYPE_FLOAT_4:
2477 case TYPE_FLOATN_4:
2478 params[3] = (GLdouble) v.value_float_4[3];
2479 case TYPE_FLOAT_3:
2480 case TYPE_FLOATN_3:
2481 params[2] = (GLdouble) v.value_float_4[2];
2482 case TYPE_FLOAT_2:
2483 case TYPE_FLOATN_2:
2484 params[1] = (GLdouble) v.value_float_4[1];
2485 case TYPE_FLOAT:
2486 case TYPE_FLOATN:
2487 params[0] = (GLdouble) v.value_float_4[0];
2488 break;
2489
2490 case TYPE_DOUBLEN_2:
2491 params[1] = v.value_double_2[1];
2492 case TYPE_DOUBLEN:
2493 params[0] = v.value_double_2[0];
2494 break;
2495
2496 case TYPE_INT_4:
2497 params[3] = (GLdouble) v.value_int_4[3];
2498 case TYPE_INT_3:
2499 params[2] = (GLdouble) v.value_int_4[2];
2500 case TYPE_INT_2:
2501 case TYPE_ENUM_2:
2502 params[1] = (GLdouble) v.value_int_4[1];
2503 case TYPE_INT:
2504 case TYPE_ENUM:
2505 params[0] = (GLdouble) v.value_int_4[0];
2506 break;
2507
2508 case TYPE_INT_N:
2509 for (i = 0; i < v.value_int_n.n; i++)
2510 params[i] = (GLdouble) INT_TO_FLOAT(v.value_int_n.ints[i]);
2511 break;
2512
2513 case TYPE_INT64:
2514 params[0] = (GLdouble) v.value_int64;
2515 break;
2516
2517 case TYPE_BOOLEAN:
2518 params[0] = (GLdouble) BOOLEAN_TO_FLOAT(v.value_bool);
2519 break;
2520
2521 case TYPE_MATRIX:
2522 m = *(GLmatrix **) &v;
2523 for (i = 0; i < 16; i++)
2524 params[i] = (GLdouble) m->m[i];
2525 break;
2526
2527 case TYPE_MATRIX_T:
2528 m = *(GLmatrix **) &v;
2529 for (i = 0; i < 16; i++)
2530 params[i] = (GLdouble) m->m[transpose[i]];
2531 break;
2532
2533 default:
2534 ;
2535 }
2536 }
2537
2538 void GLAPIENTRY
2539 _mesa_GetFixedv(GLenum pname, GLfixed *params)
2540 {
2541 const struct value_desc *d;
2542 union value v;
2543 GLmatrix *m;
2544 int shift, i;
2545 void *p;
2546
2547 d = find_value("glGetDoublev", pname, &p, &v);
2548 switch (d->type) {
2549 case TYPE_INVALID:
2550 break;
2551 case TYPE_CONST:
2552 params[0] = INT_TO_FIXED(d->offset);
2553 break;
2554
2555 case TYPE_FLOAT_4:
2556 case TYPE_FLOATN_4:
2557 params[3] = FLOAT_TO_FIXED(((GLfloat *) p)[3]);
2558 case TYPE_FLOAT_3:
2559 case TYPE_FLOATN_3:
2560 params[2] = FLOAT_TO_FIXED(((GLfloat *) p)[2]);
2561 case TYPE_FLOAT_2:
2562 case TYPE_FLOATN_2:
2563 params[1] = FLOAT_TO_FIXED(((GLfloat *) p)[1]);
2564 case TYPE_FLOAT:
2565 case TYPE_FLOATN:
2566 params[0] = FLOAT_TO_FIXED(((GLfloat *) p)[0]);
2567 break;
2568
2569 case TYPE_DOUBLEN_2:
2570 params[1] = FLOAT_TO_FIXED(((GLdouble *) p)[1]);
2571 case TYPE_DOUBLEN:
2572 params[0] = FLOAT_TO_FIXED(((GLdouble *) p)[0]);
2573 break;
2574
2575 case TYPE_INT_4:
2576 params[3] = INT_TO_FIXED(((GLint *) p)[3]);
2577 case TYPE_INT_3:
2578 params[2] = INT_TO_FIXED(((GLint *) p)[2]);
2579 case TYPE_INT_2:
2580 case TYPE_ENUM_2:
2581 params[1] = INT_TO_FIXED(((GLint *) p)[1]);
2582 case TYPE_INT:
2583 case TYPE_ENUM:
2584 params[0] = INT_TO_FIXED(((GLint *) p)[0]);
2585 break;
2586
2587 case TYPE_INT_N:
2588 for (i = 0; i < v.value_int_n.n; i++)
2589 params[i] = INT_TO_FIXED(v.value_int_n.ints[i]);
2590 break;
2591
2592 case TYPE_INT64:
2593 params[0] = ((GLint64 *) p)[0];
2594 break;
2595
2596 case TYPE_BOOLEAN:
2597 params[0] = BOOLEAN_TO_FIXED(((GLboolean*) p)[0]);
2598 break;
2599
2600 case TYPE_MATRIX:
2601 m = *(GLmatrix **) p;
2602 for (i = 0; i < 16; i++)
2603 params[i] = FLOAT_TO_FIXED(m->m[i]);
2604 break;
2605
2606 case TYPE_MATRIX_T:
2607 m = *(GLmatrix **) p;
2608 for (i = 0; i < 16; i++)
2609 params[i] = FLOAT_TO_FIXED(m->m[transpose[i]]);
2610 break;
2611
2612 case TYPE_BIT_0:
2613 case TYPE_BIT_1:
2614 case TYPE_BIT_2:
2615 case TYPE_BIT_3:
2616 case TYPE_BIT_4:
2617 case TYPE_BIT_5:
2618 case TYPE_BIT_6:
2619 case TYPE_BIT_7:
2620 shift = d->type - TYPE_BIT_0;
2621 params[0] = BOOLEAN_TO_FIXED((*(GLbitfield *) p >> shift) & 1);
2622 break;
2623 }
2624 }