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main: Use _mesa_geometric_samples to calculate GL_SAMPLE_BUFFERS
[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 "enable.h"
30 #include "enums.h"
31 #include "errors.h"
32 #include "extensions.h"
33 #include "get.h"
34 #include "macros.h"
35 #include "mtypes.h"
36 #include "state.h"
37 #include "texcompress.h"
38 #include "texstate.h"
39 #include "framebuffer.h"
40 #include "samplerobj.h"
41 #include "stencil.h"
42
43 /* This is a table driven implemetation of the glGet*v() functions.
44 * The basic idea is that most getters just look up an int somewhere
45 * in struct gl_context and then convert it to a bool or float according to
46 * which of glGetIntegerv() glGetBooleanv() etc is being called.
47 * Instead of generating code to do this, we can just record the enum
48 * value and the offset into struct gl_context in an array of structs. Then
49 * in glGet*(), we lookup the struct for the enum in question, and use
50 * the offset to get the int we need.
51 *
52 * Sometimes we need to look up a float, a boolean, a bit in a
53 * bitfield, a matrix or other types instead, so we need to track the
54 * type of the value in struct gl_context. And sometimes the value isn't in
55 * struct gl_context but in the drawbuffer, the array object, current texture
56 * unit, or maybe it's a computed value. So we need to also track
57 * where or how to find the value. Finally, we sometimes need to
58 * check that one of a number of extensions are enabled, the GL
59 * version or flush or call _mesa_update_state(). This is done by
60 * attaching optional extra information to the value description
61 * struct, it's sort of like an array of opcodes that describe extra
62 * checks or actions.
63 *
64 * Putting all this together we end up with struct value_desc below,
65 * and with a couple of macros to help, the table of struct value_desc
66 * is about as concise as the specification in the old python script.
67 */
68
69 #define FLOAT_TO_BOOLEAN(X) ( (X) ? GL_TRUE : GL_FALSE )
70 #define FLOAT_TO_FIXED(F) ( ((F) * 65536.0f > INT_MAX) ? INT_MAX : \
71 ((F) * 65536.0f < INT_MIN) ? INT_MIN : \
72 (GLint) ((F) * 65536.0f) )
73
74 #define INT_TO_BOOLEAN(I) ( (I) ? GL_TRUE : GL_FALSE )
75 #define INT_TO_FIXED(I) ( ((I) > SHRT_MAX) ? INT_MAX : \
76 ((I) < SHRT_MIN) ? INT_MIN : \
77 (GLint) ((I) * 65536) )
78
79 #define INT64_TO_BOOLEAN(I) ( (I) ? GL_TRUE : GL_FALSE )
80 #define INT64_TO_INT(I) ( (GLint)((I > INT_MAX) ? INT_MAX : ((I < INT_MIN) ? INT_MIN : (I))) )
81
82 #define BOOLEAN_TO_INT(B) ( (GLint) (B) )
83 #define BOOLEAN_TO_INT64(B) ( (GLint64) (B) )
84 #define BOOLEAN_TO_FLOAT(B) ( (B) ? 1.0F : 0.0F )
85 #define BOOLEAN_TO_FIXED(B) ( (GLint) ((B) ? 1 : 0) << 16 )
86
87 #define ENUM_TO_INT64(E) ( (GLint64) (E) )
88 #define ENUM_TO_FIXED(E) (E)
89
90 enum value_type {
91 TYPE_INVALID,
92 TYPE_INT,
93 TYPE_INT_2,
94 TYPE_INT_3,
95 TYPE_INT_4,
96 TYPE_INT_N,
97 TYPE_INT64,
98 TYPE_ENUM,
99 TYPE_ENUM_2,
100 TYPE_BOOLEAN,
101 TYPE_BIT_0,
102 TYPE_BIT_1,
103 TYPE_BIT_2,
104 TYPE_BIT_3,
105 TYPE_BIT_4,
106 TYPE_BIT_5,
107 TYPE_BIT_6,
108 TYPE_BIT_7,
109 TYPE_FLOAT,
110 TYPE_FLOAT_2,
111 TYPE_FLOAT_3,
112 TYPE_FLOAT_4,
113 TYPE_FLOATN,
114 TYPE_FLOATN_2,
115 TYPE_FLOATN_3,
116 TYPE_FLOATN_4,
117 TYPE_DOUBLEN,
118 TYPE_DOUBLEN_2,
119 TYPE_MATRIX,
120 TYPE_MATRIX_T,
121 TYPE_CONST
122 };
123
124 enum value_location {
125 LOC_BUFFER,
126 LOC_CONTEXT,
127 LOC_ARRAY,
128 LOC_TEXUNIT,
129 LOC_CUSTOM
130 };
131
132 enum value_extra {
133 EXTRA_END = 0x8000,
134 EXTRA_VERSION_30,
135 EXTRA_VERSION_31,
136 EXTRA_VERSION_32,
137 EXTRA_VERSION_40,
138 EXTRA_API_GL,
139 EXTRA_API_GL_CORE,
140 EXTRA_API_ES2,
141 EXTRA_API_ES3,
142 EXTRA_API_ES31,
143 EXTRA_NEW_BUFFERS,
144 EXTRA_NEW_FRAG_CLAMP,
145 EXTRA_VALID_DRAW_BUFFER,
146 EXTRA_VALID_TEXTURE_UNIT,
147 EXTRA_VALID_CLIP_DISTANCE,
148 EXTRA_FLUSH_CURRENT,
149 EXTRA_GLSL_130,
150 EXTRA_EXT_UBO_GS,
151 EXTRA_EXT_ATOMICS_GS,
152 EXTRA_EXT_SHADER_IMAGE_GS,
153 EXTRA_EXT_ATOMICS_TESS,
154 EXTRA_EXT_SHADER_IMAGE_TESS,
155 EXTRA_EXT_SSBO_GS,
156 EXTRA_EXT_FB_NO_ATTACH_GS,
157 EXTRA_EXT_ES_GS,
158 };
159
160 #define NO_EXTRA NULL
161 #define NO_OFFSET 0
162
163 struct value_desc {
164 GLenum pname;
165 GLubyte location; /**< enum value_location */
166 GLubyte type; /**< enum value_type */
167 int offset;
168 const int *extra;
169 };
170
171 union value {
172 GLfloat value_float;
173 GLfloat value_float_4[4];
174 GLdouble value_double_2[2];
175 GLmatrix *value_matrix;
176 GLint value_int;
177 GLint value_int_4[4];
178 GLint64 value_int64;
179 GLenum value_enum;
180
181 /* Sigh, see GL_COMPRESSED_TEXTURE_FORMATS_ARB handling */
182 struct {
183 GLint n, ints[100];
184 } value_int_n;
185 GLboolean value_bool;
186 };
187
188 #define BUFFER_FIELD(field, type) \
189 LOC_BUFFER, type, offsetof(struct gl_framebuffer, field)
190 #define CONTEXT_FIELD(field, type) \
191 LOC_CONTEXT, type, offsetof(struct gl_context, field)
192 #define ARRAY_FIELD(field, type) \
193 LOC_ARRAY, type, offsetof(struct gl_vertex_array_object, field)
194 #undef CONST /* already defined through windows.h */
195 #define CONST(value) \
196 LOC_CONTEXT, TYPE_CONST, value
197
198 #define BUFFER_INT(field) BUFFER_FIELD(field, TYPE_INT)
199 #define BUFFER_ENUM(field) BUFFER_FIELD(field, TYPE_ENUM)
200 #define BUFFER_BOOL(field) BUFFER_FIELD(field, TYPE_BOOLEAN)
201
202 #define CONTEXT_INT(field) CONTEXT_FIELD(field, TYPE_INT)
203 #define CONTEXT_INT2(field) CONTEXT_FIELD(field, TYPE_INT_2)
204 #define CONTEXT_INT64(field) CONTEXT_FIELD(field, TYPE_INT64)
205 #define CONTEXT_ENUM(field) CONTEXT_FIELD(field, TYPE_ENUM)
206 #define CONTEXT_ENUM2(field) CONTEXT_FIELD(field, TYPE_ENUM_2)
207 #define CONTEXT_BOOL(field) CONTEXT_FIELD(field, TYPE_BOOLEAN)
208 #define CONTEXT_BIT0(field) CONTEXT_FIELD(field, TYPE_BIT_0)
209 #define CONTEXT_BIT1(field) CONTEXT_FIELD(field, TYPE_BIT_1)
210 #define CONTEXT_BIT2(field) CONTEXT_FIELD(field, TYPE_BIT_2)
211 #define CONTEXT_BIT3(field) CONTEXT_FIELD(field, TYPE_BIT_3)
212 #define CONTEXT_BIT4(field) CONTEXT_FIELD(field, TYPE_BIT_4)
213 #define CONTEXT_BIT5(field) CONTEXT_FIELD(field, TYPE_BIT_5)
214 #define CONTEXT_BIT6(field) CONTEXT_FIELD(field, TYPE_BIT_6)
215 #define CONTEXT_BIT7(field) CONTEXT_FIELD(field, TYPE_BIT_7)
216 #define CONTEXT_FLOAT(field) CONTEXT_FIELD(field, TYPE_FLOAT)
217 #define CONTEXT_FLOAT2(field) CONTEXT_FIELD(field, TYPE_FLOAT_2)
218 #define CONTEXT_FLOAT3(field) CONTEXT_FIELD(field, TYPE_FLOAT_3)
219 #define CONTEXT_FLOAT4(field) CONTEXT_FIELD(field, TYPE_FLOAT_4)
220 #define CONTEXT_MATRIX(field) CONTEXT_FIELD(field, TYPE_MATRIX)
221 #define CONTEXT_MATRIX_T(field) CONTEXT_FIELD(field, TYPE_MATRIX_T)
222
223 #define ARRAY_INT(field) ARRAY_FIELD(field, TYPE_INT)
224 #define ARRAY_ENUM(field) ARRAY_FIELD(field, TYPE_ENUM)
225 #define ARRAY_BOOL(field) ARRAY_FIELD(field, TYPE_BOOLEAN)
226
227 #define EXT(f) \
228 offsetof(struct gl_extensions, f)
229
230 #define EXTRA_EXT(e) \
231 static const int extra_##e[] = { \
232 EXT(e), EXTRA_END \
233 }
234
235 #define EXTRA_EXT2(e1, e2) \
236 static const int extra_##e1##_##e2[] = { \
237 EXT(e1), EXT(e2), EXTRA_END \
238 }
239
240 /* The 'extra' mechanism is a way to specify extra checks (such as
241 * extensions or specific gl versions) or actions (flush current, new
242 * buffers) that we need to do before looking up an enum. We need to
243 * declare them all up front so we can refer to them in the value_desc
244 * structs below.
245 *
246 * Each EXTRA_ will be executed. For EXTRA_* enums of extensions and API
247 * versions, listing multiple ones in an array means an error will be thrown
248 * only if none of them are available. If you need to check for "AND"
249 * behavior, you would need to make a custom EXTRA_ enum.
250 */
251
252 static const int extra_new_buffers[] = {
253 EXTRA_NEW_BUFFERS,
254 EXTRA_END
255 };
256
257 static const int extra_new_frag_clamp[] = {
258 EXTRA_NEW_FRAG_CLAMP,
259 EXTRA_END
260 };
261
262 static const int extra_valid_draw_buffer[] = {
263 EXTRA_VALID_DRAW_BUFFER,
264 EXTRA_END
265 };
266
267 static const int extra_valid_texture_unit[] = {
268 EXTRA_VALID_TEXTURE_UNIT,
269 EXTRA_END
270 };
271
272 static const int extra_valid_clip_distance[] = {
273 EXTRA_VALID_CLIP_DISTANCE,
274 EXTRA_END
275 };
276
277 static const int extra_flush_current_valid_texture_unit[] = {
278 EXTRA_FLUSH_CURRENT,
279 EXTRA_VALID_TEXTURE_UNIT,
280 EXTRA_END
281 };
282
283 static const int extra_flush_current[] = {
284 EXTRA_FLUSH_CURRENT,
285 EXTRA_END
286 };
287
288 static const int extra_EXT_texture_integer_and_new_buffers[] = {
289 EXT(EXT_texture_integer),
290 EXTRA_NEW_BUFFERS,
291 EXTRA_END
292 };
293
294 static const int extra_GLSL_130_es3[] = {
295 EXTRA_GLSL_130,
296 EXTRA_API_ES3,
297 EXTRA_END
298 };
299
300 static const int extra_texture_buffer_object[] = {
301 EXTRA_API_GL_CORE,
302 EXTRA_VERSION_31,
303 EXT(ARB_texture_buffer_object),
304 EXTRA_END
305 };
306
307 static const int extra_ARB_transform_feedback2_api_es3[] = {
308 EXT(ARB_transform_feedback2),
309 EXTRA_API_ES3,
310 EXTRA_END
311 };
312
313 static const int extra_ARB_uniform_buffer_object_and_geometry_shader[] = {
314 EXTRA_EXT_UBO_GS,
315 EXTRA_END
316 };
317
318 static const int extra_ARB_ES2_compatibility_api_es2[] = {
319 EXT(ARB_ES2_compatibility),
320 EXTRA_API_ES2,
321 EXTRA_END
322 };
323
324 static const int extra_ARB_ES3_compatibility_api_es3[] = {
325 EXT(ARB_ES3_compatibility),
326 EXTRA_API_ES3,
327 EXTRA_END
328 };
329
330 static const int extra_EXT_framebuffer_sRGB_and_new_buffers[] = {
331 EXT(EXT_framebuffer_sRGB),
332 EXTRA_NEW_BUFFERS,
333 EXTRA_END
334 };
335
336 static const int extra_EXT_packed_float[] = {
337 EXT(EXT_packed_float),
338 EXTRA_NEW_BUFFERS,
339 EXTRA_END
340 };
341
342 static const int extra_EXT_texture_array_es3[] = {
343 EXT(EXT_texture_array),
344 EXTRA_API_ES3,
345 EXTRA_END
346 };
347
348 static const int extra_ARB_shader_atomic_counters_and_geometry_shader[] = {
349 EXTRA_EXT_ATOMICS_GS,
350 EXTRA_END
351 };
352
353 static const int extra_ARB_shader_image_load_store_and_geometry_shader[] = {
354 EXTRA_EXT_SHADER_IMAGE_GS,
355 EXTRA_END
356 };
357
358 static const int extra_ARB_shader_atomic_counters_and_tessellation[] = {
359 EXTRA_EXT_ATOMICS_TESS,
360 EXTRA_END
361 };
362
363 static const int extra_ARB_shader_image_load_store_and_tessellation[] = {
364 EXTRA_EXT_SHADER_IMAGE_TESS,
365 EXTRA_END
366 };
367
368 /* HACK: remove when ARB_compute_shader is actually supported */
369 static const int extra_ARB_compute_shader_es31[] = {
370 EXT(ARB_compute_shader),
371 EXTRA_API_ES31,
372 EXTRA_END
373 };
374
375 static const int extra_ARB_shader_storage_buffer_object_es31[] = {
376 EXT(ARB_shader_storage_buffer_object),
377 EXTRA_API_ES31,
378 EXTRA_END
379 };
380
381 static const int extra_ARB_shader_storage_buffer_object_and_geometry_shader[] = {
382 EXTRA_EXT_SSBO_GS,
383 EXTRA_END
384 };
385
386 static const int extra_ARB_framebuffer_no_attachments_and_geometry_shader[] = {
387 EXTRA_EXT_FB_NO_ATTACH_GS,
388 EXTRA_END
389 };
390
391 static const int extra_ARB_viewport_array_or_oes_geometry_shader[] = {
392 EXT(ARB_viewport_array),
393 EXTRA_EXT_ES_GS,
394 EXTRA_END
395 };
396
397 static const int extra_ARB_gpu_shader5_or_oes_geometry_shader[] = {
398 EXT(ARB_gpu_shader5),
399 EXTRA_EXT_ES_GS,
400 EXTRA_END
401 };
402
403 EXTRA_EXT(ARB_texture_cube_map);
404 EXTRA_EXT(EXT_texture_array);
405 EXTRA_EXT(NV_fog_distance);
406 EXTRA_EXT(EXT_texture_filter_anisotropic);
407 EXTRA_EXT(NV_point_sprite);
408 EXTRA_EXT(NV_texture_rectangle);
409 EXTRA_EXT(EXT_stencil_two_side);
410 EXTRA_EXT(EXT_depth_bounds_test);
411 EXTRA_EXT(ARB_depth_clamp);
412 EXTRA_EXT(ATI_fragment_shader);
413 EXTRA_EXT(EXT_provoking_vertex);
414 EXTRA_EXT(ARB_fragment_shader);
415 EXTRA_EXT(ARB_fragment_program);
416 EXTRA_EXT2(ARB_framebuffer_object, EXT_framebuffer_multisample);
417 EXTRA_EXT(ARB_seamless_cube_map);
418 EXTRA_EXT(ARB_sync);
419 EXTRA_EXT(ARB_vertex_shader);
420 EXTRA_EXT(EXT_transform_feedback);
421 EXTRA_EXT(ARB_transform_feedback3);
422 EXTRA_EXT(EXT_pixel_buffer_object);
423 EXTRA_EXT(ARB_vertex_program);
424 EXTRA_EXT2(NV_point_sprite, ARB_point_sprite);
425 EXTRA_EXT2(ARB_vertex_program, ARB_fragment_program);
426 EXTRA_EXT(ARB_color_buffer_float);
427 EXTRA_EXT(EXT_framebuffer_sRGB);
428 EXTRA_EXT(OES_EGL_image_external);
429 EXTRA_EXT(ARB_blend_func_extended);
430 EXTRA_EXT(ARB_uniform_buffer_object);
431 EXTRA_EXT(ARB_timer_query);
432 EXTRA_EXT(ARB_texture_cube_map_array);
433 EXTRA_EXT(ARB_texture_buffer_range);
434 EXTRA_EXT(ARB_texture_multisample);
435 EXTRA_EXT(ARB_texture_gather);
436 EXTRA_EXT(ARB_shader_atomic_counters);
437 EXTRA_EXT(ARB_draw_indirect);
438 EXTRA_EXT(ARB_shader_image_load_store);
439 EXTRA_EXT(ARB_viewport_array);
440 EXTRA_EXT(ARB_compute_shader);
441 EXTRA_EXT(ARB_gpu_shader5);
442 EXTRA_EXT(ARB_query_buffer_object);
443 EXTRA_EXT2(ARB_transform_feedback3, ARB_gpu_shader5);
444 EXTRA_EXT(INTEL_performance_query);
445 EXTRA_EXT(ARB_explicit_uniform_location);
446 EXTRA_EXT(ARB_clip_control);
447 EXTRA_EXT(EXT_polygon_offset_clamp);
448 EXTRA_EXT(ARB_framebuffer_no_attachments);
449 EXTRA_EXT(ARB_tessellation_shader);
450 EXTRA_EXT(ARB_shader_subroutine);
451 EXTRA_EXT(ARB_shader_storage_buffer_object);
452 EXTRA_EXT(ARB_indirect_parameters);
453
454 static const int
455 extra_ARB_color_buffer_float_or_glcore[] = {
456 EXT(ARB_color_buffer_float),
457 EXTRA_API_GL_CORE,
458 EXTRA_END
459 };
460
461 static const int
462 extra_NV_primitive_restart[] = {
463 EXT(NV_primitive_restart),
464 EXTRA_END
465 };
466
467 static const int extra_version_30[] = { EXTRA_VERSION_30, EXTRA_END };
468 static const int extra_version_31[] = { EXTRA_VERSION_31, EXTRA_END };
469 static const int extra_version_32[] = { EXTRA_VERSION_32, EXTRA_END };
470 static const int extra_version_40[] = { EXTRA_VERSION_40, EXTRA_END };
471
472 static const int extra_gl30_es3[] = {
473 EXTRA_VERSION_30,
474 EXTRA_API_ES3,
475 EXTRA_END,
476 };
477
478 static const int extra_gl32_es3[] = {
479 EXTRA_VERSION_32,
480 EXTRA_API_ES3,
481 EXTRA_END,
482 };
483
484 static const int extra_version_32_OES_geometry_shader[] = {
485 EXTRA_VERSION_32,
486 EXTRA_EXT_ES_GS,
487 EXTRA_END
488 };
489
490 static const int extra_gl40_ARB_sample_shading[] = {
491 EXTRA_VERSION_40,
492 EXT(ARB_sample_shading),
493 EXTRA_END
494 };
495
496 static const int
497 extra_ARB_vertex_program_api_es2[] = {
498 EXT(ARB_vertex_program),
499 EXTRA_API_ES2,
500 EXTRA_END
501 };
502
503 /* The ReadBuffer get token is valid under either full GL or under
504 * GLES2 if the NV_read_buffer extension is available. */
505 static const int
506 extra_NV_read_buffer_api_gl[] = {
507 EXTRA_API_ES2,
508 EXTRA_API_GL,
509 EXTRA_END
510 };
511
512 static const int extra_core_ARB_color_buffer_float_and_new_buffers[] = {
513 EXTRA_API_GL_CORE,
514 EXT(ARB_color_buffer_float),
515 EXTRA_NEW_BUFFERS,
516 EXTRA_END
517 };
518
519 /* This is the big table describing all the enums we accept in
520 * glGet*v(). The table is partitioned into six parts: enums
521 * understood by all GL APIs (OpenGL, GLES and GLES2), enums shared
522 * between OpenGL and GLES, enums exclusive to GLES, etc for the
523 * remaining combinations. To look up the enums valid in a given API
524 * we will use a hash table specific to that API. These tables are in
525 * turn generated at build time and included through get_hash.h.
526 */
527
528 #include "get_hash.h"
529
530 /* All we need now is a way to look up the value struct from the enum.
531 * The code generated by gcc for the old generated big switch
532 * statement is a big, balanced, open coded if/else tree, essentially
533 * an unrolled binary search. It would be natural to sort the new
534 * enum table and use bsearch(), but we will use a read-only hash
535 * table instead. bsearch() has a nice guaranteed worst case
536 * performance, but we're also guaranteed to hit that worst case
537 * (log2(n) iterations) for about half the enums. Instead, using an
538 * open addressing hash table, we can find the enum on the first try
539 * for 80% of the enums, 1 collision for 10% and never more than 5
540 * collisions for any enum (typical numbers). And the code is very
541 * simple, even though it feels a little magic. */
542
543 #ifdef GET_DEBUG
544 static void
545 print_table_stats(int api)
546 {
547 int i, j, collisions[11], count, hash, mask;
548 const struct value_desc *d;
549 const char *api_names[] = {
550 [API_OPENGL_COMPAT] = "GL",
551 [API_OPENGL_CORE] = "GL_CORE",
552 [API_OPENGLES] = "GLES",
553 [API_OPENGLES2] = "GLES2",
554 };
555 const char *api_name;
556
557 api_name = api < ARRAY_SIZE(api_names) ? api_names[api] : "N/A";
558 count = 0;
559 mask = ARRAY_SIZE(table(api)) - 1;
560 memset(collisions, 0, sizeof collisions);
561
562 for (i = 0; i < ARRAY_SIZE(table(api)); i++) {
563 if (!table(api)[i])
564 continue;
565 count++;
566 d = &values[table(api)[i]];
567 hash = (d->pname * prime_factor);
568 j = 0;
569 while (1) {
570 if (values[table(api)[hash & mask]].pname == d->pname)
571 break;
572 hash += prime_step;
573 j++;
574 }
575
576 if (j < 10)
577 collisions[j]++;
578 else
579 collisions[10]++;
580 }
581
582 printf("number of enums for %s: %d (total %ld)\n",
583 api_name, count, ARRAY_SIZE(values));
584 for (i = 0; i < ARRAY_SIZE(collisions) - 1; i++)
585 if (collisions[i] > 0)
586 printf(" %d enums with %d %scollisions\n",
587 collisions[i], i, i == 10 ? "or more " : "");
588 }
589 #endif
590
591 /**
592 * Initialize the enum hash for a given API
593 *
594 * This is called from one_time_init() to insert the enum values that
595 * are valid for the API in question into the enum hash table.
596 *
597 * \param the current context, for determining the API in question
598 */
599 void _mesa_init_get_hash(struct gl_context *ctx)
600 {
601 #ifdef GET_DEBUG
602 print_table_stats(ctx->API);
603 #else
604 (void) ctx;
605 #endif
606 }
607
608 /**
609 * Handle irregular enums
610 *
611 * Some values don't conform to the "well-known type at context
612 * pointer + offset" pattern, so we have this function to catch all
613 * the corner cases. Typically, it's a computed value or a one-off
614 * pointer to a custom struct or something.
615 *
616 * In this case we can't return a pointer to the value, so we'll have
617 * to use the temporary variable 'v' declared back in the calling
618 * glGet*v() function to store the result.
619 *
620 * \param ctx the current context
621 * \param d the struct value_desc that describes the enum
622 * \param v pointer to the tmp declared in the calling glGet*v() function
623 */
624 static void
625 find_custom_value(struct gl_context *ctx, const struct value_desc *d, union value *v)
626 {
627 struct gl_buffer_object **buffer_obj;
628 struct gl_vertex_attrib_array *array;
629 GLuint unit, *p;
630
631 switch (d->pname) {
632 case GL_MAJOR_VERSION:
633 v->value_int = ctx->Version / 10;
634 break;
635 case GL_MINOR_VERSION:
636 v->value_int = ctx->Version % 10;
637 break;
638
639 case GL_TEXTURE_1D:
640 case GL_TEXTURE_2D:
641 case GL_TEXTURE_3D:
642 case GL_TEXTURE_CUBE_MAP_ARB:
643 case GL_TEXTURE_RECTANGLE_NV:
644 case GL_TEXTURE_EXTERNAL_OES:
645 v->value_bool = _mesa_IsEnabled(d->pname);
646 break;
647
648 case GL_LINE_STIPPLE_PATTERN:
649 /* This is the only GLushort, special case it here by promoting
650 * to an int rather than introducing a new type. */
651 v->value_int = ctx->Line.StipplePattern;
652 break;
653
654 case GL_CURRENT_RASTER_TEXTURE_COORDS:
655 unit = ctx->Texture.CurrentUnit;
656 v->value_float_4[0] = ctx->Current.RasterTexCoords[unit][0];
657 v->value_float_4[1] = ctx->Current.RasterTexCoords[unit][1];
658 v->value_float_4[2] = ctx->Current.RasterTexCoords[unit][2];
659 v->value_float_4[3] = ctx->Current.RasterTexCoords[unit][3];
660 break;
661
662 case GL_CURRENT_TEXTURE_COORDS:
663 unit = ctx->Texture.CurrentUnit;
664 v->value_float_4[0] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][0];
665 v->value_float_4[1] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][1];
666 v->value_float_4[2] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][2];
667 v->value_float_4[3] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][3];
668 break;
669
670 case GL_COLOR_WRITEMASK:
671 v->value_int_4[0] = ctx->Color.ColorMask[0][RCOMP] ? 1 : 0;
672 v->value_int_4[1] = ctx->Color.ColorMask[0][GCOMP] ? 1 : 0;
673 v->value_int_4[2] = ctx->Color.ColorMask[0][BCOMP] ? 1 : 0;
674 v->value_int_4[3] = ctx->Color.ColorMask[0][ACOMP] ? 1 : 0;
675 break;
676
677 case GL_EDGE_FLAG:
678 v->value_bool = ctx->Current.Attrib[VERT_ATTRIB_EDGEFLAG][0] == 1.0F;
679 break;
680
681 case GL_READ_BUFFER:
682 v->value_enum = ctx->ReadBuffer->ColorReadBuffer;
683 break;
684
685 case GL_MAP2_GRID_DOMAIN:
686 v->value_float_4[0] = ctx->Eval.MapGrid2u1;
687 v->value_float_4[1] = ctx->Eval.MapGrid2u2;
688 v->value_float_4[2] = ctx->Eval.MapGrid2v1;
689 v->value_float_4[3] = ctx->Eval.MapGrid2v2;
690 break;
691
692 case GL_TEXTURE_STACK_DEPTH:
693 unit = ctx->Texture.CurrentUnit;
694 v->value_int = ctx->TextureMatrixStack[unit].Depth + 1;
695 break;
696 case GL_TEXTURE_MATRIX:
697 unit = ctx->Texture.CurrentUnit;
698 v->value_matrix = ctx->TextureMatrixStack[unit].Top;
699 break;
700
701 case GL_TEXTURE_COORD_ARRAY:
702 case GL_TEXTURE_COORD_ARRAY_SIZE:
703 case GL_TEXTURE_COORD_ARRAY_TYPE:
704 case GL_TEXTURE_COORD_ARRAY_STRIDE:
705 array = &ctx->Array.VAO->VertexAttrib[VERT_ATTRIB_TEX(ctx->Array.ActiveTexture)];
706 v->value_int = *(GLuint *) ((char *) array + d->offset);
707 break;
708
709 case GL_ACTIVE_TEXTURE_ARB:
710 v->value_int = GL_TEXTURE0_ARB + ctx->Texture.CurrentUnit;
711 break;
712 case GL_CLIENT_ACTIVE_TEXTURE_ARB:
713 v->value_int = GL_TEXTURE0_ARB + ctx->Array.ActiveTexture;
714 break;
715
716 case GL_MODELVIEW_STACK_DEPTH:
717 case GL_PROJECTION_STACK_DEPTH:
718 v->value_int = *(GLint *) ((char *) ctx + d->offset) + 1;
719 break;
720
721 case GL_MAX_TEXTURE_SIZE:
722 case GL_MAX_3D_TEXTURE_SIZE:
723 case GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB:
724 p = (GLuint *) ((char *) ctx + d->offset);
725 v->value_int = 1 << (*p - 1);
726 break;
727
728 case GL_SCISSOR_BOX:
729 v->value_int_4[0] = ctx->Scissor.ScissorArray[0].X;
730 v->value_int_4[1] = ctx->Scissor.ScissorArray[0].Y;
731 v->value_int_4[2] = ctx->Scissor.ScissorArray[0].Width;
732 v->value_int_4[3] = ctx->Scissor.ScissorArray[0].Height;
733 break;
734
735 case GL_SCISSOR_TEST:
736 v->value_bool = ctx->Scissor.EnableFlags & 1;
737 break;
738
739 case GL_LIST_INDEX:
740 v->value_int =
741 ctx->ListState.CurrentList ? ctx->ListState.CurrentList->Name : 0;
742 break;
743 case GL_LIST_MODE:
744 if (!ctx->CompileFlag)
745 v->value_enum = 0;
746 else if (ctx->ExecuteFlag)
747 v->value_enum = GL_COMPILE_AND_EXECUTE;
748 else
749 v->value_enum = GL_COMPILE;
750 break;
751
752 case GL_VIEWPORT:
753 v->value_float_4[0] = ctx->ViewportArray[0].X;
754 v->value_float_4[1] = ctx->ViewportArray[0].Y;
755 v->value_float_4[2] = ctx->ViewportArray[0].Width;
756 v->value_float_4[3] = ctx->ViewportArray[0].Height;
757 break;
758
759 case GL_DEPTH_RANGE:
760 v->value_double_2[0] = ctx->ViewportArray[0].Near;
761 v->value_double_2[1] = ctx->ViewportArray[0].Far;
762 break;
763
764 case GL_ACTIVE_STENCIL_FACE_EXT:
765 v->value_enum = ctx->Stencil.ActiveFace ? GL_BACK : GL_FRONT;
766 break;
767
768 case GL_STENCIL_FAIL:
769 v->value_enum = ctx->Stencil.FailFunc[ctx->Stencil.ActiveFace];
770 break;
771 case GL_STENCIL_FUNC:
772 v->value_enum = ctx->Stencil.Function[ctx->Stencil.ActiveFace];
773 break;
774 case GL_STENCIL_PASS_DEPTH_FAIL:
775 v->value_enum = ctx->Stencil.ZFailFunc[ctx->Stencil.ActiveFace];
776 break;
777 case GL_STENCIL_PASS_DEPTH_PASS:
778 v->value_enum = ctx->Stencil.ZPassFunc[ctx->Stencil.ActiveFace];
779 break;
780 case GL_STENCIL_REF:
781 v->value_int = _mesa_get_stencil_ref(ctx, ctx->Stencil.ActiveFace);
782 break;
783 case GL_STENCIL_BACK_REF:
784 v->value_int = _mesa_get_stencil_ref(ctx, 1);
785 break;
786 case GL_STENCIL_VALUE_MASK:
787 v->value_int = ctx->Stencil.ValueMask[ctx->Stencil.ActiveFace];
788 break;
789 case GL_STENCIL_WRITEMASK:
790 v->value_int = ctx->Stencil.WriteMask[ctx->Stencil.ActiveFace];
791 break;
792
793 case GL_NUM_EXTENSIONS:
794 v->value_int = _mesa_get_extension_count(ctx);
795 break;
796
797 case GL_IMPLEMENTATION_COLOR_READ_TYPE_OES:
798 v->value_int = _mesa_get_color_read_type(ctx);
799 break;
800 case GL_IMPLEMENTATION_COLOR_READ_FORMAT_OES:
801 v->value_int = _mesa_get_color_read_format(ctx);
802 break;
803
804 case GL_CURRENT_MATRIX_STACK_DEPTH_ARB:
805 v->value_int = ctx->CurrentStack->Depth + 1;
806 break;
807 case GL_CURRENT_MATRIX_ARB:
808 case GL_TRANSPOSE_CURRENT_MATRIX_ARB:
809 v->value_matrix = ctx->CurrentStack->Top;
810 break;
811
812 case GL_NUM_COMPRESSED_TEXTURE_FORMATS_ARB:
813 v->value_int = _mesa_get_compressed_formats(ctx, NULL);
814 break;
815 case GL_COMPRESSED_TEXTURE_FORMATS_ARB:
816 v->value_int_n.n =
817 _mesa_get_compressed_formats(ctx, v->value_int_n.ints);
818 assert(v->value_int_n.n <= (int) ARRAY_SIZE(v->value_int_n.ints));
819 break;
820
821 case GL_MAX_VARYING_FLOATS_ARB:
822 v->value_int = ctx->Const.MaxVarying * 4;
823 break;
824
825 /* Various object names */
826
827 case GL_TEXTURE_BINDING_1D:
828 case GL_TEXTURE_BINDING_2D:
829 case GL_TEXTURE_BINDING_3D:
830 case GL_TEXTURE_BINDING_1D_ARRAY_EXT:
831 case GL_TEXTURE_BINDING_2D_ARRAY_EXT:
832 case GL_TEXTURE_BINDING_CUBE_MAP_ARB:
833 case GL_TEXTURE_BINDING_RECTANGLE_NV:
834 case GL_TEXTURE_BINDING_EXTERNAL_OES:
835 case GL_TEXTURE_BINDING_CUBE_MAP_ARRAY:
836 case GL_TEXTURE_BINDING_2D_MULTISAMPLE:
837 case GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY:
838 unit = ctx->Texture.CurrentUnit;
839 v->value_int =
840 ctx->Texture.Unit[unit].CurrentTex[d->offset]->Name;
841 break;
842
843 /* GL_EXT_packed_float */
844 case GL_RGBA_SIGNED_COMPONENTS_EXT:
845 {
846 /* Note: we only check the 0th color attachment. */
847 const struct gl_renderbuffer *rb =
848 ctx->DrawBuffer->_ColorDrawBuffers[0];
849 if (rb && _mesa_is_format_signed(rb->Format)) {
850 /* Issue 17 of GL_EXT_packed_float: If a component (such as
851 * alpha) has zero bits, the component should not be considered
852 * signed and so the bit for the respective component should be
853 * zeroed.
854 */
855 GLint r_bits =
856 _mesa_get_format_bits(rb->Format, GL_RED_BITS);
857 GLint g_bits =
858 _mesa_get_format_bits(rb->Format, GL_GREEN_BITS);
859 GLint b_bits =
860 _mesa_get_format_bits(rb->Format, GL_BLUE_BITS);
861 GLint a_bits =
862 _mesa_get_format_bits(rb->Format, GL_ALPHA_BITS);
863 GLint l_bits =
864 _mesa_get_format_bits(rb->Format, GL_TEXTURE_LUMINANCE_SIZE);
865 GLint i_bits =
866 _mesa_get_format_bits(rb->Format, GL_TEXTURE_INTENSITY_SIZE);
867
868 v->value_int_4[0] = r_bits + l_bits + i_bits > 0;
869 v->value_int_4[1] = g_bits + l_bits + i_bits > 0;
870 v->value_int_4[2] = b_bits + l_bits + i_bits > 0;
871 v->value_int_4[3] = a_bits + i_bits > 0;
872 }
873 else {
874 v->value_int_4[0] =
875 v->value_int_4[1] =
876 v->value_int_4[2] =
877 v->value_int_4[3] = 0;
878 }
879 }
880 break;
881
882 /* GL_ARB_vertex_buffer_object */
883 case GL_VERTEX_ARRAY_BUFFER_BINDING_ARB:
884 case GL_NORMAL_ARRAY_BUFFER_BINDING_ARB:
885 case GL_COLOR_ARRAY_BUFFER_BINDING_ARB:
886 case GL_INDEX_ARRAY_BUFFER_BINDING_ARB:
887 case GL_EDGE_FLAG_ARRAY_BUFFER_BINDING_ARB:
888 case GL_SECONDARY_COLOR_ARRAY_BUFFER_BINDING_ARB:
889 case GL_FOG_COORDINATE_ARRAY_BUFFER_BINDING_ARB:
890 buffer_obj = (struct gl_buffer_object **)
891 ((char *) ctx->Array.VAO + d->offset);
892 v->value_int = (*buffer_obj)->Name;
893 break;
894 case GL_ARRAY_BUFFER_BINDING_ARB:
895 v->value_int = ctx->Array.ArrayBufferObj->Name;
896 break;
897 case GL_TEXTURE_COORD_ARRAY_BUFFER_BINDING_ARB:
898 v->value_int =
899 ctx->Array.VAO->VertexBinding[VERT_ATTRIB_TEX(ctx->Array.ActiveTexture)].BufferObj->Name;
900 break;
901 case GL_ELEMENT_ARRAY_BUFFER_BINDING_ARB:
902 v->value_int = ctx->Array.VAO->IndexBufferObj->Name;
903 break;
904
905 /* ARB_vertex_array_bgra */
906 case GL_COLOR_ARRAY_SIZE:
907 array = &ctx->Array.VAO->VertexAttrib[VERT_ATTRIB_COLOR0];
908 v->value_int = array->Format == GL_BGRA ? GL_BGRA : array->Size;
909 break;
910 case GL_SECONDARY_COLOR_ARRAY_SIZE:
911 array = &ctx->Array.VAO->VertexAttrib[VERT_ATTRIB_COLOR1];
912 v->value_int = array->Format == GL_BGRA ? GL_BGRA : array->Size;
913 break;
914
915 /* ARB_copy_buffer */
916 case GL_COPY_READ_BUFFER:
917 v->value_int = ctx->CopyReadBuffer->Name;
918 break;
919 case GL_COPY_WRITE_BUFFER:
920 v->value_int = ctx->CopyWriteBuffer->Name;
921 break;
922
923 case GL_PIXEL_PACK_BUFFER_BINDING_EXT:
924 v->value_int = ctx->Pack.BufferObj->Name;
925 break;
926 case GL_PIXEL_UNPACK_BUFFER_BINDING_EXT:
927 v->value_int = ctx->Unpack.BufferObj->Name;
928 break;
929 case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING:
930 v->value_int = ctx->TransformFeedback.CurrentBuffer->Name;
931 break;
932 case GL_TRANSFORM_FEEDBACK_BUFFER_PAUSED:
933 v->value_int = ctx->TransformFeedback.CurrentObject->Paused;
934 break;
935 case GL_TRANSFORM_FEEDBACK_BUFFER_ACTIVE:
936 v->value_int = ctx->TransformFeedback.CurrentObject->Active;
937 break;
938 case GL_TRANSFORM_FEEDBACK_BINDING:
939 v->value_int = ctx->TransformFeedback.CurrentObject->Name;
940 break;
941 case GL_CURRENT_PROGRAM:
942 /* The Changelog of the ARB_separate_shader_objects spec says:
943 *
944 * 24 25 Jul 2011 pbrown Remove the language erroneously deleting
945 * CURRENT_PROGRAM. In the EXT extension, this
946 * token was aliased to ACTIVE_PROGRAM_EXT, and
947 * was used to indicate the last program set by
948 * either ActiveProgramEXT or UseProgram. In
949 * the ARB extension, the SSO active programs
950 * are now program pipeline object state and
951 * CURRENT_PROGRAM should still be used to query
952 * the last program set by UseProgram (bug 7822).
953 */
954 v->value_int =
955 ctx->Shader.ActiveProgram ? ctx->Shader.ActiveProgram->Name : 0;
956 break;
957 case GL_READ_FRAMEBUFFER_BINDING_EXT:
958 v->value_int = ctx->ReadBuffer->Name;
959 break;
960 case GL_RENDERBUFFER_BINDING_EXT:
961 v->value_int =
962 ctx->CurrentRenderbuffer ? ctx->CurrentRenderbuffer->Name : 0;
963 break;
964 case GL_POINT_SIZE_ARRAY_BUFFER_BINDING_OES:
965 v->value_int = ctx->Array.VAO->VertexBinding[VERT_ATTRIB_POINT_SIZE].BufferObj->Name;
966 break;
967
968 case GL_FOG_COLOR:
969 if (_mesa_get_clamp_fragment_color(ctx, ctx->DrawBuffer))
970 COPY_4FV(v->value_float_4, ctx->Fog.Color);
971 else
972 COPY_4FV(v->value_float_4, ctx->Fog.ColorUnclamped);
973 break;
974 case GL_COLOR_CLEAR_VALUE:
975 if (_mesa_get_clamp_fragment_color(ctx, ctx->DrawBuffer)) {
976 v->value_float_4[0] = CLAMP(ctx->Color.ClearColor.f[0], 0.0F, 1.0F);
977 v->value_float_4[1] = CLAMP(ctx->Color.ClearColor.f[1], 0.0F, 1.0F);
978 v->value_float_4[2] = CLAMP(ctx->Color.ClearColor.f[2], 0.0F, 1.0F);
979 v->value_float_4[3] = CLAMP(ctx->Color.ClearColor.f[3], 0.0F, 1.0F);
980 } else
981 COPY_4FV(v->value_float_4, ctx->Color.ClearColor.f);
982 break;
983 case GL_BLEND_COLOR_EXT:
984 if (_mesa_get_clamp_fragment_color(ctx, ctx->DrawBuffer))
985 COPY_4FV(v->value_float_4, ctx->Color.BlendColor);
986 else
987 COPY_4FV(v->value_float_4, ctx->Color.BlendColorUnclamped);
988 break;
989 case GL_ALPHA_TEST_REF:
990 if (_mesa_get_clamp_fragment_color(ctx, ctx->DrawBuffer))
991 v->value_float = ctx->Color.AlphaRef;
992 else
993 v->value_float = ctx->Color.AlphaRefUnclamped;
994 break;
995 case GL_MAX_VERTEX_UNIFORM_VECTORS:
996 v->value_int = ctx->Const.Program[MESA_SHADER_VERTEX].MaxUniformComponents / 4;
997 break;
998
999 case GL_MAX_FRAGMENT_UNIFORM_VECTORS:
1000 v->value_int = ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxUniformComponents / 4;
1001 break;
1002
1003 /* GL_ARB_texture_buffer_object */
1004 case GL_TEXTURE_BUFFER_ARB:
1005 v->value_int = ctx->Texture.BufferObject->Name;
1006 break;
1007 case GL_TEXTURE_BINDING_BUFFER_ARB:
1008 unit = ctx->Texture.CurrentUnit;
1009 v->value_int =
1010 ctx->Texture.Unit[unit].CurrentTex[TEXTURE_BUFFER_INDEX]->Name;
1011 break;
1012 case GL_TEXTURE_BUFFER_DATA_STORE_BINDING_ARB:
1013 {
1014 struct gl_buffer_object *buf =
1015 ctx->Texture.Unit[ctx->Texture.CurrentUnit]
1016 .CurrentTex[TEXTURE_BUFFER_INDEX]->BufferObject;
1017 v->value_int = buf ? buf->Name : 0;
1018 }
1019 break;
1020 case GL_TEXTURE_BUFFER_FORMAT_ARB:
1021 v->value_int = ctx->Texture.Unit[ctx->Texture.CurrentUnit]
1022 .CurrentTex[TEXTURE_BUFFER_INDEX]->BufferObjectFormat;
1023 break;
1024
1025 /* GL_ARB_sampler_objects */
1026 case GL_SAMPLER_BINDING:
1027 {
1028 struct gl_sampler_object *samp =
1029 ctx->Texture.Unit[ctx->Texture.CurrentUnit].Sampler;
1030 v->value_int = samp ? samp->Name : 0;
1031 }
1032 break;
1033 /* GL_ARB_uniform_buffer_object */
1034 case GL_UNIFORM_BUFFER_BINDING:
1035 v->value_int = ctx->UniformBuffer->Name;
1036 break;
1037 /* GL_ARB_shader_storage_buffer_object */
1038 case GL_SHADER_STORAGE_BUFFER_BINDING:
1039 v->value_int = ctx->ShaderStorageBuffer->Name;
1040 break;
1041 /* GL_ARB_query_buffer_object */
1042 case GL_QUERY_BUFFER_BINDING:
1043 v->value_int = ctx->QueryBuffer->Name;
1044 break;
1045 /* GL_ARB_timer_query */
1046 case GL_TIMESTAMP:
1047 if (ctx->Driver.GetTimestamp) {
1048 v->value_int64 = ctx->Driver.GetTimestamp(ctx);
1049 }
1050 else {
1051 _mesa_problem(ctx, "driver doesn't implement GetTimestamp");
1052 }
1053 break;
1054 /* GL_KHR_DEBUG */
1055 case GL_DEBUG_LOGGED_MESSAGES:
1056 case GL_DEBUG_NEXT_LOGGED_MESSAGE_LENGTH:
1057 case GL_DEBUG_GROUP_STACK_DEPTH:
1058 v->value_int = _mesa_get_debug_state_int(ctx, d->pname);
1059 break;
1060 /* GL_ARB_shader_atomic_counters */
1061 case GL_ATOMIC_COUNTER_BUFFER_BINDING:
1062 if (ctx->AtomicBuffer) {
1063 v->value_int = ctx->AtomicBuffer->Name;
1064 } else {
1065 v->value_int = 0;
1066 }
1067 break;
1068 /* GL_ARB_draw_indirect */
1069 case GL_DRAW_INDIRECT_BUFFER_BINDING:
1070 v->value_int = ctx->DrawIndirectBuffer->Name;
1071 break;
1072 /* GL_ARB_indirect_parameters */
1073 case GL_PARAMETER_BUFFER_BINDING_ARB:
1074 v->value_int = ctx->ParameterBuffer->Name;
1075 break;
1076 /* GL_ARB_separate_shader_objects */
1077 case GL_PROGRAM_PIPELINE_BINDING:
1078 if (ctx->Pipeline.Current) {
1079 v->value_int = ctx->Pipeline.Current->Name;
1080 } else {
1081 v->value_int = 0;
1082 }
1083 break;
1084 /* GL_ARB_compute_shader */
1085 case GL_DISPATCH_INDIRECT_BUFFER_BINDING:
1086 v->value_int = ctx->DispatchIndirectBuffer->Name;
1087 break;
1088 /* GL_ARB_multisample */
1089 case GL_SAMPLES:
1090 v->value_int = _mesa_geometric_samples(ctx->DrawBuffer);
1091 break;
1092 case GL_SAMPLE_BUFFERS:
1093 v->value_int = _mesa_geometric_samples(ctx->DrawBuffer) > 0;
1094 break;
1095 }
1096 }
1097
1098 /**
1099 * Check extra constraints on a struct value_desc descriptor
1100 *
1101 * If a struct value_desc has a non-NULL extra pointer, it means that
1102 * there are a number of extra constraints to check or actions to
1103 * perform. The extras is just an integer array where each integer
1104 * encode different constraints or actions.
1105 *
1106 * \param ctx current context
1107 * \param func name of calling glGet*v() function for error reporting
1108 * \param d the struct value_desc that has the extra constraints
1109 *
1110 * \return GL_FALSE if all of the constraints were not satisfied,
1111 * otherwise GL_TRUE.
1112 */
1113 static GLboolean
1114 check_extra(struct gl_context *ctx, const char *func, const struct value_desc *d)
1115 {
1116 const GLuint version = ctx->Version;
1117 GLboolean api_check = GL_FALSE;
1118 GLboolean api_found = GL_FALSE;
1119 const int *e;
1120
1121 for (e = d->extra; *e != EXTRA_END; e++) {
1122 switch (*e) {
1123 case EXTRA_VERSION_30:
1124 api_check = GL_TRUE;
1125 if (version >= 30)
1126 api_found = GL_TRUE;
1127 break;
1128 case EXTRA_VERSION_31:
1129 api_check = GL_TRUE;
1130 if (version >= 31)
1131 api_found = GL_TRUE;
1132 break;
1133 case EXTRA_VERSION_32:
1134 api_check = GL_TRUE;
1135 if (version >= 32)
1136 api_found = GL_TRUE;
1137 break;
1138 case EXTRA_NEW_FRAG_CLAMP:
1139 if (ctx->NewState & (_NEW_BUFFERS | _NEW_FRAG_CLAMP))
1140 _mesa_update_state(ctx);
1141 break;
1142 case EXTRA_API_ES2:
1143 api_check = GL_TRUE;
1144 if (ctx->API == API_OPENGLES2)
1145 api_found = GL_TRUE;
1146 break;
1147 case EXTRA_API_ES3:
1148 api_check = GL_TRUE;
1149 if (_mesa_is_gles3(ctx))
1150 api_found = GL_TRUE;
1151 break;
1152 case EXTRA_API_ES31:
1153 api_check = GL_TRUE;
1154 if (_mesa_is_gles31(ctx))
1155 api_found = GL_TRUE;
1156 break;
1157 case EXTRA_API_GL:
1158 api_check = GL_TRUE;
1159 if (_mesa_is_desktop_gl(ctx))
1160 api_found = GL_TRUE;
1161 break;
1162 case EXTRA_API_GL_CORE:
1163 api_check = GL_TRUE;
1164 if (ctx->API == API_OPENGL_CORE)
1165 api_found = GL_TRUE;
1166 break;
1167 case EXTRA_NEW_BUFFERS:
1168 if (ctx->NewState & _NEW_BUFFERS)
1169 _mesa_update_state(ctx);
1170 break;
1171 case EXTRA_FLUSH_CURRENT:
1172 FLUSH_CURRENT(ctx, 0);
1173 break;
1174 case EXTRA_VALID_DRAW_BUFFER:
1175 if (d->pname - GL_DRAW_BUFFER0_ARB >= ctx->Const.MaxDrawBuffers) {
1176 _mesa_error(ctx, GL_INVALID_OPERATION, "%s(draw buffer %u)",
1177 func, d->pname - GL_DRAW_BUFFER0_ARB);
1178 return GL_FALSE;
1179 }
1180 break;
1181 case EXTRA_VALID_TEXTURE_UNIT:
1182 if (ctx->Texture.CurrentUnit >= ctx->Const.MaxTextureCoordUnits) {
1183 _mesa_error(ctx, GL_INVALID_OPERATION, "%s(texture %u)",
1184 func, ctx->Texture.CurrentUnit);
1185 return GL_FALSE;
1186 }
1187 break;
1188 case EXTRA_VALID_CLIP_DISTANCE:
1189 if (d->pname - GL_CLIP_DISTANCE0 >= ctx->Const.MaxClipPlanes) {
1190 _mesa_error(ctx, GL_INVALID_ENUM, "%s(clip distance %u)",
1191 func, d->pname - GL_CLIP_DISTANCE0);
1192 return GL_FALSE;
1193 }
1194 break;
1195 case EXTRA_GLSL_130:
1196 api_check = GL_TRUE;
1197 if (ctx->Const.GLSLVersion >= 130)
1198 api_found = GL_TRUE;
1199 break;
1200 case EXTRA_EXT_UBO_GS:
1201 api_check = GL_TRUE;
1202 if (ctx->Extensions.ARB_uniform_buffer_object &&
1203 _mesa_has_geometry_shaders(ctx))
1204 api_found = GL_TRUE;
1205 break;
1206 case EXTRA_EXT_ATOMICS_GS:
1207 api_check = GL_TRUE;
1208 if (ctx->Extensions.ARB_shader_atomic_counters &&
1209 _mesa_has_geometry_shaders(ctx))
1210 api_found = GL_TRUE;
1211 break;
1212 case EXTRA_EXT_SHADER_IMAGE_GS:
1213 api_check = GL_TRUE;
1214 if (ctx->Extensions.ARB_shader_image_load_store &&
1215 _mesa_has_geometry_shaders(ctx))
1216 api_found = GL_TRUE;
1217 break;
1218 case EXTRA_EXT_ATOMICS_TESS:
1219 api_check = GL_TRUE;
1220 api_found = ctx->Extensions.ARB_shader_atomic_counters &&
1221 _mesa_has_tessellation(ctx);
1222 break;
1223 case EXTRA_EXT_SHADER_IMAGE_TESS:
1224 api_check = GL_TRUE;
1225 api_found = ctx->Extensions.ARB_shader_image_load_store &&
1226 _mesa_has_tessellation(ctx);
1227 break;
1228 case EXTRA_EXT_SSBO_GS:
1229 api_check = GL_TRUE;
1230 if (ctx->Extensions.ARB_shader_storage_buffer_object &&
1231 _mesa_has_geometry_shaders(ctx))
1232 api_found = GL_TRUE;
1233 break;
1234 case EXTRA_EXT_FB_NO_ATTACH_GS:
1235 api_check = GL_TRUE;
1236 if (ctx->Extensions.ARB_framebuffer_no_attachments &&
1237 (_mesa_is_desktop_gl(ctx) ||
1238 _mesa_has_OES_geometry_shader(ctx)))
1239 api_found = GL_TRUE;
1240 break;
1241 case EXTRA_EXT_ES_GS:
1242 api_check = GL_TRUE;
1243 if (_mesa_has_OES_geometry_shader(ctx))
1244 api_found = GL_TRUE;
1245 break;
1246 case EXTRA_END:
1247 break;
1248 default: /* *e is a offset into the extension struct */
1249 api_check = GL_TRUE;
1250 if (*(GLboolean *) ((char *) &ctx->Extensions + *e))
1251 api_found = GL_TRUE;
1252 break;
1253 }
1254 }
1255
1256 if (api_check && !api_found) {
1257 _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func,
1258 _mesa_enum_to_string(d->pname));
1259 return GL_FALSE;
1260 }
1261
1262 return GL_TRUE;
1263 }
1264
1265 static const struct value_desc error_value =
1266 { 0, 0, TYPE_INVALID, NO_OFFSET, NO_EXTRA };
1267
1268 /**
1269 * Find the struct value_desc corresponding to the enum 'pname'.
1270 *
1271 * We hash the enum value to get an index into the 'table' array,
1272 * which holds the index in the 'values' array of struct value_desc.
1273 * Once we've found the entry, we do the extra checks, if any, then
1274 * look up the value and return a pointer to it.
1275 *
1276 * If the value has to be computed (for example, it's the result of a
1277 * function call or we need to add 1 to it), we use the tmp 'v' to
1278 * store the result.
1279 *
1280 * \param func name of glGet*v() func for error reporting
1281 * \param pname the enum value we're looking up
1282 * \param p is were we return the pointer to the value
1283 * \param v a tmp union value variable in the calling glGet*v() function
1284 *
1285 * \return the struct value_desc corresponding to the enum or a struct
1286 * value_desc of TYPE_INVALID if not found. This lets the calling
1287 * glGet*v() function jump right into a switch statement and
1288 * handle errors there instead of having to check for NULL.
1289 */
1290 static const struct value_desc *
1291 find_value(const char *func, GLenum pname, void **p, union value *v)
1292 {
1293 GET_CURRENT_CONTEXT(ctx);
1294 struct gl_texture_unit *unit;
1295 int mask, hash;
1296 const struct value_desc *d;
1297 int api;
1298
1299 api = ctx->API;
1300 /* We index into the table_set[] list of per-API hash tables using the API's
1301 * value in the gl_api enum. Since GLES 3 doesn't have an API_OPENGL* enum
1302 * value since it's compatible with GLES2 its entry in table_set[] is at the
1303 * end.
1304 */
1305 STATIC_ASSERT(ARRAY_SIZE(table_set) == API_OPENGL_LAST + 3);
1306 if (_mesa_is_gles3(ctx)) {
1307 api = API_OPENGL_LAST + 1;
1308 }
1309 if (_mesa_is_gles31(ctx)) {
1310 api = API_OPENGL_LAST + 2;
1311 }
1312 mask = ARRAY_SIZE(table(api)) - 1;
1313 hash = (pname * prime_factor);
1314 while (1) {
1315 int idx = table(api)[hash & mask];
1316
1317 /* If the enum isn't valid, the hash walk ends with index 0,
1318 * pointing to the first entry of values[] which doesn't hold
1319 * any valid enum. */
1320 if (unlikely(idx == 0)) {
1321 _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func,
1322 _mesa_enum_to_string(pname));
1323 return &error_value;
1324 }
1325
1326 d = &values[idx];
1327 if (likely(d->pname == pname))
1328 break;
1329
1330 hash += prime_step;
1331 }
1332
1333 if (unlikely(d->extra && !check_extra(ctx, func, d)))
1334 return &error_value;
1335
1336 switch (d->location) {
1337 case LOC_BUFFER:
1338 *p = ((char *) ctx->DrawBuffer + d->offset);
1339 return d;
1340 case LOC_CONTEXT:
1341 *p = ((char *) ctx + d->offset);
1342 return d;
1343 case LOC_ARRAY:
1344 *p = ((char *) ctx->Array.VAO + d->offset);
1345 return d;
1346 case LOC_TEXUNIT:
1347 unit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
1348 *p = ((char *) unit + d->offset);
1349 return d;
1350 case LOC_CUSTOM:
1351 find_custom_value(ctx, d, v);
1352 *p = v;
1353 return d;
1354 default:
1355 assert(0);
1356 break;
1357 }
1358
1359 /* silence warning */
1360 return &error_value;
1361 }
1362
1363 static const int transpose[] = {
1364 0, 4, 8, 12,
1365 1, 5, 9, 13,
1366 2, 6, 10, 14,
1367 3, 7, 11, 15
1368 };
1369
1370 void GLAPIENTRY
1371 _mesa_GetBooleanv(GLenum pname, GLboolean *params)
1372 {
1373 const struct value_desc *d;
1374 union value v;
1375 GLmatrix *m;
1376 int shift, i;
1377 void *p;
1378
1379 d = find_value("glGetBooleanv", pname, &p, &v);
1380 switch (d->type) {
1381 case TYPE_INVALID:
1382 break;
1383 case TYPE_CONST:
1384 params[0] = INT_TO_BOOLEAN(d->offset);
1385 break;
1386
1387 case TYPE_FLOAT_4:
1388 case TYPE_FLOATN_4:
1389 params[3] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[3]);
1390 case TYPE_FLOAT_3:
1391 case TYPE_FLOATN_3:
1392 params[2] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[2]);
1393 case TYPE_FLOAT_2:
1394 case TYPE_FLOATN_2:
1395 params[1] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[1]);
1396 case TYPE_FLOAT:
1397 case TYPE_FLOATN:
1398 params[0] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[0]);
1399 break;
1400
1401 case TYPE_DOUBLEN_2:
1402 params[1] = FLOAT_TO_BOOLEAN(((GLdouble *) p)[1]);
1403 case TYPE_DOUBLEN:
1404 params[0] = FLOAT_TO_BOOLEAN(((GLdouble *) p)[0]);
1405 break;
1406
1407 case TYPE_INT_4:
1408 params[3] = INT_TO_BOOLEAN(((GLint *) p)[3]);
1409 case TYPE_INT_3:
1410 params[2] = INT_TO_BOOLEAN(((GLint *) p)[2]);
1411 case TYPE_INT_2:
1412 case TYPE_ENUM_2:
1413 params[1] = INT_TO_BOOLEAN(((GLint *) p)[1]);
1414 case TYPE_INT:
1415 case TYPE_ENUM:
1416 params[0] = INT_TO_BOOLEAN(((GLint *) p)[0]);
1417 break;
1418
1419 case TYPE_INT_N:
1420 for (i = 0; i < v.value_int_n.n; i++)
1421 params[i] = INT_TO_BOOLEAN(v.value_int_n.ints[i]);
1422 break;
1423
1424 case TYPE_INT64:
1425 params[0] = INT64_TO_BOOLEAN(((GLint64 *) p)[0]);
1426 break;
1427
1428 case TYPE_BOOLEAN:
1429 params[0] = ((GLboolean*) p)[0];
1430 break;
1431
1432 case TYPE_MATRIX:
1433 m = *(GLmatrix **) p;
1434 for (i = 0; i < 16; i++)
1435 params[i] = FLOAT_TO_BOOLEAN(m->m[i]);
1436 break;
1437
1438 case TYPE_MATRIX_T:
1439 m = *(GLmatrix **) p;
1440 for (i = 0; i < 16; i++)
1441 params[i] = FLOAT_TO_BOOLEAN(m->m[transpose[i]]);
1442 break;
1443
1444 case TYPE_BIT_0:
1445 case TYPE_BIT_1:
1446 case TYPE_BIT_2:
1447 case TYPE_BIT_3:
1448 case TYPE_BIT_4:
1449 case TYPE_BIT_5:
1450 case TYPE_BIT_6:
1451 case TYPE_BIT_7:
1452 shift = d->type - TYPE_BIT_0;
1453 params[0] = (*(GLbitfield *) p >> shift) & 1;
1454 break;
1455 }
1456 }
1457
1458 void GLAPIENTRY
1459 _mesa_GetFloatv(GLenum pname, GLfloat *params)
1460 {
1461 const struct value_desc *d;
1462 union value v;
1463 GLmatrix *m;
1464 int shift, i;
1465 void *p;
1466
1467 d = find_value("glGetFloatv", pname, &p, &v);
1468 switch (d->type) {
1469 case TYPE_INVALID:
1470 break;
1471 case TYPE_CONST:
1472 params[0] = (GLfloat) d->offset;
1473 break;
1474
1475 case TYPE_FLOAT_4:
1476 case TYPE_FLOATN_4:
1477 params[3] = ((GLfloat *) p)[3];
1478 case TYPE_FLOAT_3:
1479 case TYPE_FLOATN_3:
1480 params[2] = ((GLfloat *) p)[2];
1481 case TYPE_FLOAT_2:
1482 case TYPE_FLOATN_2:
1483 params[1] = ((GLfloat *) p)[1];
1484 case TYPE_FLOAT:
1485 case TYPE_FLOATN:
1486 params[0] = ((GLfloat *) p)[0];
1487 break;
1488
1489 case TYPE_DOUBLEN_2:
1490 params[1] = (GLfloat) (((GLdouble *) p)[1]);
1491 case TYPE_DOUBLEN:
1492 params[0] = (GLfloat) (((GLdouble *) p)[0]);
1493 break;
1494
1495 case TYPE_INT_4:
1496 params[3] = (GLfloat) (((GLint *) p)[3]);
1497 case TYPE_INT_3:
1498 params[2] = (GLfloat) (((GLint *) p)[2]);
1499 case TYPE_INT_2:
1500 case TYPE_ENUM_2:
1501 params[1] = (GLfloat) (((GLint *) p)[1]);
1502 case TYPE_INT:
1503 case TYPE_ENUM:
1504 params[0] = (GLfloat) (((GLint *) p)[0]);
1505 break;
1506
1507 case TYPE_INT_N:
1508 for (i = 0; i < v.value_int_n.n; i++)
1509 params[i] = INT_TO_FLOAT(v.value_int_n.ints[i]);
1510 break;
1511
1512 case TYPE_INT64:
1513 params[0] = (GLfloat) (((GLint64 *) p)[0]);
1514 break;
1515
1516 case TYPE_BOOLEAN:
1517 params[0] = BOOLEAN_TO_FLOAT(*(GLboolean*) p);
1518 break;
1519
1520 case TYPE_MATRIX:
1521 m = *(GLmatrix **) p;
1522 for (i = 0; i < 16; i++)
1523 params[i] = m->m[i];
1524 break;
1525
1526 case TYPE_MATRIX_T:
1527 m = *(GLmatrix **) p;
1528 for (i = 0; i < 16; i++)
1529 params[i] = m->m[transpose[i]];
1530 break;
1531
1532 case TYPE_BIT_0:
1533 case TYPE_BIT_1:
1534 case TYPE_BIT_2:
1535 case TYPE_BIT_3:
1536 case TYPE_BIT_4:
1537 case TYPE_BIT_5:
1538 case TYPE_BIT_6:
1539 case TYPE_BIT_7:
1540 shift = d->type - TYPE_BIT_0;
1541 params[0] = BOOLEAN_TO_FLOAT((*(GLbitfield *) p >> shift) & 1);
1542 break;
1543 }
1544 }
1545
1546 void GLAPIENTRY
1547 _mesa_GetIntegerv(GLenum pname, GLint *params)
1548 {
1549 const struct value_desc *d;
1550 union value v;
1551 GLmatrix *m;
1552 int shift, i;
1553 void *p;
1554
1555 d = find_value("glGetIntegerv", pname, &p, &v);
1556 switch (d->type) {
1557 case TYPE_INVALID:
1558 break;
1559 case TYPE_CONST:
1560 params[0] = d->offset;
1561 break;
1562
1563 case TYPE_FLOAT_4:
1564 params[3] = IROUND(((GLfloat *) p)[3]);
1565 case TYPE_FLOAT_3:
1566 params[2] = IROUND(((GLfloat *) p)[2]);
1567 case TYPE_FLOAT_2:
1568 params[1] = IROUND(((GLfloat *) p)[1]);
1569 case TYPE_FLOAT:
1570 params[0] = IROUND(((GLfloat *) p)[0]);
1571 break;
1572
1573 case TYPE_FLOATN_4:
1574 params[3] = FLOAT_TO_INT(((GLfloat *) p)[3]);
1575 case TYPE_FLOATN_3:
1576 params[2] = FLOAT_TO_INT(((GLfloat *) p)[2]);
1577 case TYPE_FLOATN_2:
1578 params[1] = FLOAT_TO_INT(((GLfloat *) p)[1]);
1579 case TYPE_FLOATN:
1580 params[0] = FLOAT_TO_INT(((GLfloat *) p)[0]);
1581 break;
1582
1583 case TYPE_DOUBLEN_2:
1584 params[1] = FLOAT_TO_INT(((GLdouble *) p)[1]);
1585 case TYPE_DOUBLEN:
1586 params[0] = FLOAT_TO_INT(((GLdouble *) p)[0]);
1587 break;
1588
1589 case TYPE_INT_4:
1590 params[3] = ((GLint *) p)[3];
1591 case TYPE_INT_3:
1592 params[2] = ((GLint *) p)[2];
1593 case TYPE_INT_2:
1594 case TYPE_ENUM_2:
1595 params[1] = ((GLint *) p)[1];
1596 case TYPE_INT:
1597 case TYPE_ENUM:
1598 params[0] = ((GLint *) p)[0];
1599 break;
1600
1601 case TYPE_INT_N:
1602 for (i = 0; i < v.value_int_n.n; i++)
1603 params[i] = v.value_int_n.ints[i];
1604 break;
1605
1606 case TYPE_INT64:
1607 params[0] = INT64_TO_INT(((GLint64 *) p)[0]);
1608 break;
1609
1610 case TYPE_BOOLEAN:
1611 params[0] = BOOLEAN_TO_INT(*(GLboolean*) p);
1612 break;
1613
1614 case TYPE_MATRIX:
1615 m = *(GLmatrix **) p;
1616 for (i = 0; i < 16; i++)
1617 params[i] = FLOAT_TO_INT(m->m[i]);
1618 break;
1619
1620 case TYPE_MATRIX_T:
1621 m = *(GLmatrix **) p;
1622 for (i = 0; i < 16; i++)
1623 params[i] = FLOAT_TO_INT(m->m[transpose[i]]);
1624 break;
1625
1626 case TYPE_BIT_0:
1627 case TYPE_BIT_1:
1628 case TYPE_BIT_2:
1629 case TYPE_BIT_3:
1630 case TYPE_BIT_4:
1631 case TYPE_BIT_5:
1632 case TYPE_BIT_6:
1633 case TYPE_BIT_7:
1634 shift = d->type - TYPE_BIT_0;
1635 params[0] = (*(GLbitfield *) p >> shift) & 1;
1636 break;
1637 }
1638 }
1639
1640 void GLAPIENTRY
1641 _mesa_GetInteger64v(GLenum pname, GLint64 *params)
1642 {
1643 const struct value_desc *d;
1644 union value v;
1645 GLmatrix *m;
1646 int shift, i;
1647 void *p;
1648
1649 d = find_value("glGetInteger64v", pname, &p, &v);
1650 switch (d->type) {
1651 case TYPE_INVALID:
1652 break;
1653 case TYPE_CONST:
1654 params[0] = d->offset;
1655 break;
1656
1657 case TYPE_FLOAT_4:
1658 params[3] = IROUND64(((GLfloat *) p)[3]);
1659 case TYPE_FLOAT_3:
1660 params[2] = IROUND64(((GLfloat *) p)[2]);
1661 case TYPE_FLOAT_2:
1662 params[1] = IROUND64(((GLfloat *) p)[1]);
1663 case TYPE_FLOAT:
1664 params[0] = IROUND64(((GLfloat *) p)[0]);
1665 break;
1666
1667 case TYPE_FLOATN_4:
1668 params[3] = FLOAT_TO_INT64(((GLfloat *) p)[3]);
1669 case TYPE_FLOATN_3:
1670 params[2] = FLOAT_TO_INT64(((GLfloat *) p)[2]);
1671 case TYPE_FLOATN_2:
1672 params[1] = FLOAT_TO_INT64(((GLfloat *) p)[1]);
1673 case TYPE_FLOATN:
1674 params[0] = FLOAT_TO_INT64(((GLfloat *) p)[0]);
1675 break;
1676
1677 case TYPE_DOUBLEN_2:
1678 params[1] = FLOAT_TO_INT64(((GLdouble *) p)[1]);
1679 case TYPE_DOUBLEN:
1680 params[0] = FLOAT_TO_INT64(((GLdouble *) p)[0]);
1681 break;
1682
1683 case TYPE_INT_4:
1684 params[3] = ((GLint *) p)[3];
1685 case TYPE_INT_3:
1686 params[2] = ((GLint *) p)[2];
1687 case TYPE_INT_2:
1688 case TYPE_ENUM_2:
1689 params[1] = ((GLint *) p)[1];
1690 case TYPE_INT:
1691 case TYPE_ENUM:
1692 params[0] = ((GLint *) p)[0];
1693 break;
1694
1695 case TYPE_INT_N:
1696 for (i = 0; i < v.value_int_n.n; i++)
1697 params[i] = INT_TO_BOOLEAN(v.value_int_n.ints[i]);
1698 break;
1699
1700 case TYPE_INT64:
1701 params[0] = ((GLint64 *) p)[0];
1702 break;
1703
1704 case TYPE_BOOLEAN:
1705 params[0] = ((GLboolean*) p)[0];
1706 break;
1707
1708 case TYPE_MATRIX:
1709 m = *(GLmatrix **) p;
1710 for (i = 0; i < 16; i++)
1711 params[i] = FLOAT_TO_INT64(m->m[i]);
1712 break;
1713
1714 case TYPE_MATRIX_T:
1715 m = *(GLmatrix **) p;
1716 for (i = 0; i < 16; i++)
1717 params[i] = FLOAT_TO_INT64(m->m[transpose[i]]);
1718 break;
1719
1720 case TYPE_BIT_0:
1721 case TYPE_BIT_1:
1722 case TYPE_BIT_2:
1723 case TYPE_BIT_3:
1724 case TYPE_BIT_4:
1725 case TYPE_BIT_5:
1726 case TYPE_BIT_6:
1727 case TYPE_BIT_7:
1728 shift = d->type - TYPE_BIT_0;
1729 params[0] = (*(GLbitfield *) p >> shift) & 1;
1730 break;
1731 }
1732 }
1733
1734 void GLAPIENTRY
1735 _mesa_GetDoublev(GLenum pname, GLdouble *params)
1736 {
1737 const struct value_desc *d;
1738 union value v;
1739 GLmatrix *m;
1740 int shift, i;
1741 void *p;
1742
1743 d = find_value("glGetDoublev", pname, &p, &v);
1744 switch (d->type) {
1745 case TYPE_INVALID:
1746 break;
1747 case TYPE_CONST:
1748 params[0] = d->offset;
1749 break;
1750
1751 case TYPE_FLOAT_4:
1752 case TYPE_FLOATN_4:
1753 params[3] = ((GLfloat *) p)[3];
1754 case TYPE_FLOAT_3:
1755 case TYPE_FLOATN_3:
1756 params[2] = ((GLfloat *) p)[2];
1757 case TYPE_FLOAT_2:
1758 case TYPE_FLOATN_2:
1759 params[1] = ((GLfloat *) p)[1];
1760 case TYPE_FLOAT:
1761 case TYPE_FLOATN:
1762 params[0] = ((GLfloat *) p)[0];
1763 break;
1764
1765 case TYPE_DOUBLEN_2:
1766 params[1] = ((GLdouble *) p)[1];
1767 case TYPE_DOUBLEN:
1768 params[0] = ((GLdouble *) p)[0];
1769 break;
1770
1771 case TYPE_INT_4:
1772 params[3] = ((GLint *) p)[3];
1773 case TYPE_INT_3:
1774 params[2] = ((GLint *) p)[2];
1775 case TYPE_INT_2:
1776 case TYPE_ENUM_2:
1777 params[1] = ((GLint *) p)[1];
1778 case TYPE_INT:
1779 case TYPE_ENUM:
1780 params[0] = ((GLint *) p)[0];
1781 break;
1782
1783 case TYPE_INT_N:
1784 for (i = 0; i < v.value_int_n.n; i++)
1785 params[i] = v.value_int_n.ints[i];
1786 break;
1787
1788 case TYPE_INT64:
1789 params[0] = (GLdouble) (((GLint64 *) p)[0]);
1790 break;
1791
1792 case TYPE_BOOLEAN:
1793 params[0] = *(GLboolean*) p;
1794 break;
1795
1796 case TYPE_MATRIX:
1797 m = *(GLmatrix **) p;
1798 for (i = 0; i < 16; i++)
1799 params[i] = m->m[i];
1800 break;
1801
1802 case TYPE_MATRIX_T:
1803 m = *(GLmatrix **) p;
1804 for (i = 0; i < 16; i++)
1805 params[i] = m->m[transpose[i]];
1806 break;
1807
1808 case TYPE_BIT_0:
1809 case TYPE_BIT_1:
1810 case TYPE_BIT_2:
1811 case TYPE_BIT_3:
1812 case TYPE_BIT_4:
1813 case TYPE_BIT_5:
1814 case TYPE_BIT_6:
1815 case TYPE_BIT_7:
1816 shift = d->type - TYPE_BIT_0;
1817 params[0] = (*(GLbitfield *) p >> shift) & 1;
1818 break;
1819 }
1820 }
1821
1822 /**
1823 * Convert a GL texture binding enum such as GL_TEXTURE_BINDING_2D
1824 * into the corresponding Mesa texture target index.
1825 * \return TEXTURE_x_INDEX or -1 if binding is invalid
1826 */
1827 static int
1828 tex_binding_to_index(const struct gl_context *ctx, GLenum binding)
1829 {
1830 switch (binding) {
1831 case GL_TEXTURE_BINDING_1D:
1832 return _mesa_is_desktop_gl(ctx) ? TEXTURE_1D_INDEX : -1;
1833 case GL_TEXTURE_BINDING_2D:
1834 return TEXTURE_2D_INDEX;
1835 case GL_TEXTURE_BINDING_3D:
1836 return ctx->API != API_OPENGLES ? TEXTURE_3D_INDEX : -1;
1837 case GL_TEXTURE_BINDING_CUBE_MAP:
1838 return ctx->Extensions.ARB_texture_cube_map
1839 ? TEXTURE_CUBE_INDEX : -1;
1840 case GL_TEXTURE_BINDING_RECTANGLE:
1841 return _mesa_is_desktop_gl(ctx) && ctx->Extensions.NV_texture_rectangle
1842 ? TEXTURE_RECT_INDEX : -1;
1843 case GL_TEXTURE_BINDING_1D_ARRAY:
1844 return _mesa_is_desktop_gl(ctx) && ctx->Extensions.EXT_texture_array
1845 ? TEXTURE_1D_ARRAY_INDEX : -1;
1846 case GL_TEXTURE_BINDING_2D_ARRAY:
1847 return (_mesa_is_desktop_gl(ctx) && ctx->Extensions.EXT_texture_array)
1848 || _mesa_is_gles3(ctx)
1849 ? TEXTURE_2D_ARRAY_INDEX : -1;
1850 case GL_TEXTURE_BINDING_BUFFER:
1851 return ctx->API == API_OPENGL_CORE &&
1852 ctx->Extensions.ARB_texture_buffer_object ?
1853 TEXTURE_BUFFER_INDEX : -1;
1854 case GL_TEXTURE_BINDING_CUBE_MAP_ARRAY:
1855 return _mesa_is_desktop_gl(ctx) && ctx->Extensions.ARB_texture_cube_map_array
1856 ? TEXTURE_CUBE_ARRAY_INDEX : -1;
1857 case GL_TEXTURE_BINDING_2D_MULTISAMPLE:
1858 return _mesa_is_desktop_gl(ctx) && ctx->Extensions.ARB_texture_multisample
1859 ? TEXTURE_2D_MULTISAMPLE_INDEX : -1;
1860 case GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY:
1861 return _mesa_is_desktop_gl(ctx) && ctx->Extensions.ARB_texture_multisample
1862 ? TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX : -1;
1863 default:
1864 return -1;
1865 }
1866 }
1867
1868 static enum value_type
1869 find_value_indexed(const char *func, GLenum pname, GLuint index, union value *v)
1870 {
1871 GET_CURRENT_CONTEXT(ctx);
1872
1873 switch (pname) {
1874
1875 case GL_BLEND:
1876 if (index >= ctx->Const.MaxDrawBuffers)
1877 goto invalid_value;
1878 if (!ctx->Extensions.EXT_draw_buffers2)
1879 goto invalid_enum;
1880 v->value_int = (ctx->Color.BlendEnabled >> index) & 1;
1881 return TYPE_INT;
1882
1883 case GL_BLEND_SRC:
1884 /* fall-through */
1885 case GL_BLEND_SRC_RGB:
1886 if (index >= ctx->Const.MaxDrawBuffers)
1887 goto invalid_value;
1888 if (!ctx->Extensions.ARB_draw_buffers_blend)
1889 goto invalid_enum;
1890 v->value_int = ctx->Color.Blend[index].SrcRGB;
1891 return TYPE_INT;
1892 case GL_BLEND_SRC_ALPHA:
1893 if (index >= ctx->Const.MaxDrawBuffers)
1894 goto invalid_value;
1895 if (!ctx->Extensions.ARB_draw_buffers_blend)
1896 goto invalid_enum;
1897 v->value_int = ctx->Color.Blend[index].SrcA;
1898 return TYPE_INT;
1899 case GL_BLEND_DST:
1900 /* fall-through */
1901 case GL_BLEND_DST_RGB:
1902 if (index >= ctx->Const.MaxDrawBuffers)
1903 goto invalid_value;
1904 if (!ctx->Extensions.ARB_draw_buffers_blend)
1905 goto invalid_enum;
1906 v->value_int = ctx->Color.Blend[index].DstRGB;
1907 return TYPE_INT;
1908 case GL_BLEND_DST_ALPHA:
1909 if (index >= ctx->Const.MaxDrawBuffers)
1910 goto invalid_value;
1911 if (!ctx->Extensions.ARB_draw_buffers_blend)
1912 goto invalid_enum;
1913 v->value_int = ctx->Color.Blend[index].DstA;
1914 return TYPE_INT;
1915 case GL_BLEND_EQUATION_RGB:
1916 if (index >= ctx->Const.MaxDrawBuffers)
1917 goto invalid_value;
1918 if (!ctx->Extensions.ARB_draw_buffers_blend)
1919 goto invalid_enum;
1920 v->value_int = ctx->Color.Blend[index].EquationRGB;
1921 return TYPE_INT;
1922 case GL_BLEND_EQUATION_ALPHA:
1923 if (index >= ctx->Const.MaxDrawBuffers)
1924 goto invalid_value;
1925 if (!ctx->Extensions.ARB_draw_buffers_blend)
1926 goto invalid_enum;
1927 v->value_int = ctx->Color.Blend[index].EquationA;
1928 return TYPE_INT;
1929
1930 case GL_COLOR_WRITEMASK:
1931 if (index >= ctx->Const.MaxDrawBuffers)
1932 goto invalid_value;
1933 if (!ctx->Extensions.EXT_draw_buffers2)
1934 goto invalid_enum;
1935 v->value_int_4[0] = ctx->Color.ColorMask[index][RCOMP] ? 1 : 0;
1936 v->value_int_4[1] = ctx->Color.ColorMask[index][GCOMP] ? 1 : 0;
1937 v->value_int_4[2] = ctx->Color.ColorMask[index][BCOMP] ? 1 : 0;
1938 v->value_int_4[3] = ctx->Color.ColorMask[index][ACOMP] ? 1 : 0;
1939 return TYPE_INT_4;
1940
1941 case GL_SCISSOR_BOX:
1942 if (index >= ctx->Const.MaxViewports)
1943 goto invalid_value;
1944 v->value_int_4[0] = ctx->Scissor.ScissorArray[index].X;
1945 v->value_int_4[1] = ctx->Scissor.ScissorArray[index].Y;
1946 v->value_int_4[2] = ctx->Scissor.ScissorArray[index].Width;
1947 v->value_int_4[3] = ctx->Scissor.ScissorArray[index].Height;
1948 return TYPE_INT_4;
1949
1950 case GL_VIEWPORT:
1951 if (index >= ctx->Const.MaxViewports)
1952 goto invalid_value;
1953 v->value_float_4[0] = ctx->ViewportArray[index].X;
1954 v->value_float_4[1] = ctx->ViewportArray[index].Y;
1955 v->value_float_4[2] = ctx->ViewportArray[index].Width;
1956 v->value_float_4[3] = ctx->ViewportArray[index].Height;
1957 return TYPE_FLOAT_4;
1958
1959 case GL_DEPTH_RANGE:
1960 if (index >= ctx->Const.MaxViewports)
1961 goto invalid_value;
1962 v->value_double_2[0] = ctx->ViewportArray[index].Near;
1963 v->value_double_2[1] = ctx->ViewportArray[index].Far;
1964 return TYPE_DOUBLEN_2;
1965
1966 case GL_TRANSFORM_FEEDBACK_BUFFER_START:
1967 if (index >= ctx->Const.MaxTransformFeedbackBuffers)
1968 goto invalid_value;
1969 if (!ctx->Extensions.EXT_transform_feedback)
1970 goto invalid_enum;
1971 v->value_int64 = ctx->TransformFeedback.CurrentObject->Offset[index];
1972 return TYPE_INT64;
1973
1974 case GL_TRANSFORM_FEEDBACK_BUFFER_SIZE:
1975 if (index >= ctx->Const.MaxTransformFeedbackBuffers)
1976 goto invalid_value;
1977 if (!ctx->Extensions.EXT_transform_feedback)
1978 goto invalid_enum;
1979 v->value_int64
1980 = ctx->TransformFeedback.CurrentObject->RequestedSize[index];
1981 return TYPE_INT64;
1982
1983 case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING:
1984 if (index >= ctx->Const.MaxTransformFeedbackBuffers)
1985 goto invalid_value;
1986 if (!ctx->Extensions.EXT_transform_feedback)
1987 goto invalid_enum;
1988 v->value_int = ctx->TransformFeedback.CurrentObject->BufferNames[index];
1989 return TYPE_INT;
1990
1991 case GL_UNIFORM_BUFFER_BINDING:
1992 if (index >= ctx->Const.MaxUniformBufferBindings)
1993 goto invalid_value;
1994 if (!ctx->Extensions.ARB_uniform_buffer_object)
1995 goto invalid_enum;
1996 v->value_int = ctx->UniformBufferBindings[index].BufferObject->Name;
1997 return TYPE_INT;
1998
1999 case GL_UNIFORM_BUFFER_START:
2000 if (index >= ctx->Const.MaxUniformBufferBindings)
2001 goto invalid_value;
2002 if (!ctx->Extensions.ARB_uniform_buffer_object)
2003 goto invalid_enum;
2004 v->value_int = ctx->UniformBufferBindings[index].Offset < 0 ? 0 :
2005 ctx->UniformBufferBindings[index].Offset;
2006 return TYPE_INT;
2007
2008 case GL_UNIFORM_BUFFER_SIZE:
2009 if (index >= ctx->Const.MaxUniformBufferBindings)
2010 goto invalid_value;
2011 if (!ctx->Extensions.ARB_uniform_buffer_object)
2012 goto invalid_enum;
2013 v->value_int = ctx->UniformBufferBindings[index].Size < 0 ? 0 :
2014 ctx->UniformBufferBindings[index].Size;
2015 return TYPE_INT;
2016
2017 /* ARB_shader_storage_buffer_object */
2018 case GL_SHADER_STORAGE_BUFFER_BINDING:
2019 if (!ctx->Extensions.ARB_shader_storage_buffer_object)
2020 goto invalid_enum;
2021 if (index >= ctx->Const.MaxShaderStorageBufferBindings)
2022 goto invalid_value;
2023 v->value_int = ctx->ShaderStorageBufferBindings[index].BufferObject->Name;
2024 return TYPE_INT;
2025
2026 case GL_SHADER_STORAGE_BUFFER_START:
2027 if (!ctx->Extensions.ARB_shader_storage_buffer_object)
2028 goto invalid_enum;
2029 if (index >= ctx->Const.MaxShaderStorageBufferBindings)
2030 goto invalid_value;
2031 v->value_int = ctx->ShaderStorageBufferBindings[index].Offset < 0 ? 0 :
2032 ctx->ShaderStorageBufferBindings[index].Offset;
2033 return TYPE_INT;
2034
2035 case GL_SHADER_STORAGE_BUFFER_SIZE:
2036 if (!ctx->Extensions.ARB_shader_storage_buffer_object)
2037 goto invalid_enum;
2038 if (index >= ctx->Const.MaxShaderStorageBufferBindings)
2039 goto invalid_value;
2040 v->value_int = ctx->ShaderStorageBufferBindings[index].Size < 0 ? 0 :
2041 ctx->ShaderStorageBufferBindings[index].Size;
2042 return TYPE_INT;
2043
2044 /* ARB_texture_multisample / GL3.2 */
2045 case GL_SAMPLE_MASK_VALUE:
2046 if (index != 0)
2047 goto invalid_value;
2048 if (!ctx->Extensions.ARB_texture_multisample)
2049 goto invalid_enum;
2050 v->value_int = ctx->Multisample.SampleMaskValue;
2051 return TYPE_INT;
2052
2053 case GL_ATOMIC_COUNTER_BUFFER_BINDING:
2054 if (!ctx->Extensions.ARB_shader_atomic_counters)
2055 goto invalid_enum;
2056 if (index >= ctx->Const.MaxAtomicBufferBindings)
2057 goto invalid_value;
2058 v->value_int = ctx->AtomicBufferBindings[index].BufferObject->Name;
2059 return TYPE_INT;
2060
2061 case GL_ATOMIC_COUNTER_BUFFER_START:
2062 if (!ctx->Extensions.ARB_shader_atomic_counters)
2063 goto invalid_enum;
2064 if (index >= ctx->Const.MaxAtomicBufferBindings)
2065 goto invalid_value;
2066 v->value_int64 = ctx->AtomicBufferBindings[index].Offset;
2067 return TYPE_INT64;
2068
2069 case GL_ATOMIC_COUNTER_BUFFER_SIZE:
2070 if (!ctx->Extensions.ARB_shader_atomic_counters)
2071 goto invalid_enum;
2072 if (index >= ctx->Const.MaxAtomicBufferBindings)
2073 goto invalid_value;
2074 v->value_int64 = ctx->AtomicBufferBindings[index].Size;
2075 return TYPE_INT64;
2076
2077 case GL_VERTEX_BINDING_DIVISOR:
2078 if ((!_mesa_is_desktop_gl(ctx) || !ctx->Extensions.ARB_instanced_arrays) &&
2079 !_mesa_is_gles31(ctx))
2080 goto invalid_enum;
2081 if (index >= ctx->Const.Program[MESA_SHADER_VERTEX].MaxAttribs)
2082 goto invalid_value;
2083 v->value_int = ctx->Array.VAO->VertexBinding[VERT_ATTRIB_GENERIC(index)].InstanceDivisor;
2084 return TYPE_INT;
2085
2086 case GL_VERTEX_BINDING_OFFSET:
2087 if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles31(ctx))
2088 goto invalid_enum;
2089 if (index >= ctx->Const.Program[MESA_SHADER_VERTEX].MaxAttribs)
2090 goto invalid_value;
2091 v->value_int = ctx->Array.VAO->VertexBinding[VERT_ATTRIB_GENERIC(index)].Offset;
2092 return TYPE_INT;
2093
2094 case GL_VERTEX_BINDING_STRIDE:
2095 if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles31(ctx))
2096 goto invalid_enum;
2097 if (index >= ctx->Const.Program[MESA_SHADER_VERTEX].MaxAttribs)
2098 goto invalid_value;
2099 v->value_int = ctx->Array.VAO->VertexBinding[VERT_ATTRIB_GENERIC(index)].Stride;
2100 return TYPE_INT;
2101
2102 case GL_VERTEX_BINDING_BUFFER:
2103 if (ctx->API == API_OPENGLES2 && ctx->Version < 31)
2104 goto invalid_enum;
2105 if (index >= ctx->Const.Program[MESA_SHADER_VERTEX].MaxAttribs)
2106 goto invalid_value;
2107 v->value_int = ctx->Array.VAO->VertexBinding[VERT_ATTRIB_GENERIC(index)].BufferObj->Name;
2108 return TYPE_INT;
2109
2110 /* ARB_shader_image_load_store */
2111 case GL_IMAGE_BINDING_NAME: {
2112 struct gl_texture_object *t;
2113
2114 if (!ctx->Extensions.ARB_shader_image_load_store)
2115 goto invalid_enum;
2116 if (index >= ctx->Const.MaxImageUnits)
2117 goto invalid_value;
2118
2119 t = ctx->ImageUnits[index].TexObj;
2120 v->value_int = (t ? t->Name : 0);
2121 return TYPE_INT;
2122 }
2123
2124 case GL_IMAGE_BINDING_LEVEL:
2125 if (!ctx->Extensions.ARB_shader_image_load_store)
2126 goto invalid_enum;
2127 if (index >= ctx->Const.MaxImageUnits)
2128 goto invalid_value;
2129
2130 v->value_int = ctx->ImageUnits[index].Level;
2131 return TYPE_INT;
2132
2133 case GL_IMAGE_BINDING_LAYERED:
2134 if (!ctx->Extensions.ARB_shader_image_load_store)
2135 goto invalid_enum;
2136 if (index >= ctx->Const.MaxImageUnits)
2137 goto invalid_value;
2138
2139 v->value_int = ctx->ImageUnits[index].Layered;
2140 return TYPE_INT;
2141
2142 case GL_IMAGE_BINDING_LAYER:
2143 if (!ctx->Extensions.ARB_shader_image_load_store)
2144 goto invalid_enum;
2145 if (index >= ctx->Const.MaxImageUnits)
2146 goto invalid_value;
2147
2148 v->value_int = ctx->ImageUnits[index].Layer;
2149 return TYPE_INT;
2150
2151 case GL_IMAGE_BINDING_ACCESS:
2152 if (!ctx->Extensions.ARB_shader_image_load_store)
2153 goto invalid_enum;
2154 if (index >= ctx->Const.MaxImageUnits)
2155 goto invalid_value;
2156
2157 v->value_int = ctx->ImageUnits[index].Access;
2158 return TYPE_INT;
2159
2160 case GL_IMAGE_BINDING_FORMAT:
2161 if (!ctx->Extensions.ARB_shader_image_load_store)
2162 goto invalid_enum;
2163 if (index >= ctx->Const.MaxImageUnits)
2164 goto invalid_value;
2165
2166 v->value_int = ctx->ImageUnits[index].Format;
2167 return TYPE_INT;
2168
2169 /* ARB_direct_state_access */
2170 case GL_TEXTURE_BINDING_1D:
2171 case GL_TEXTURE_BINDING_1D_ARRAY:
2172 case GL_TEXTURE_BINDING_2D:
2173 case GL_TEXTURE_BINDING_2D_ARRAY:
2174 case GL_TEXTURE_BINDING_2D_MULTISAMPLE:
2175 case GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY:
2176 case GL_TEXTURE_BINDING_3D:
2177 case GL_TEXTURE_BINDING_BUFFER:
2178 case GL_TEXTURE_BINDING_CUBE_MAP:
2179 case GL_TEXTURE_BINDING_CUBE_MAP_ARRAY:
2180 case GL_TEXTURE_BINDING_RECTANGLE: {
2181 int target;
2182
2183 if (ctx->API != API_OPENGL_CORE)
2184 goto invalid_enum;
2185 target = tex_binding_to_index(ctx, pname);
2186 if (target < 0)
2187 goto invalid_enum;
2188 if (index >= _mesa_max_tex_unit(ctx))
2189 goto invalid_value;
2190
2191 v->value_int = ctx->Texture.Unit[index].CurrentTex[target]->Name;
2192 return TYPE_INT;
2193 }
2194
2195 case GL_SAMPLER_BINDING: {
2196 struct gl_sampler_object *samp;
2197
2198 if (ctx->API != API_OPENGL_CORE)
2199 goto invalid_enum;
2200 if (index >= _mesa_max_tex_unit(ctx))
2201 goto invalid_value;
2202
2203 samp = ctx->Texture.Unit[index].Sampler;
2204 v->value_int = samp ? samp->Name : 0;
2205 return TYPE_INT;
2206 }
2207
2208 case GL_MAX_COMPUTE_WORK_GROUP_COUNT:
2209 if (!_mesa_has_compute_shaders(ctx))
2210 goto invalid_enum;
2211 if (index >= 3)
2212 goto invalid_value;
2213 v->value_int = ctx->Const.MaxComputeWorkGroupCount[index];
2214 return TYPE_INT;
2215
2216 case GL_MAX_COMPUTE_WORK_GROUP_SIZE:
2217 if (!_mesa_has_compute_shaders(ctx))
2218 goto invalid_enum;
2219 if (index >= 3)
2220 goto invalid_value;
2221 v->value_int = ctx->Const.MaxComputeWorkGroupSize[index];
2222 return TYPE_INT;
2223 }
2224
2225 invalid_enum:
2226 _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func,
2227 _mesa_enum_to_string(pname));
2228 return TYPE_INVALID;
2229 invalid_value:
2230 _mesa_error(ctx, GL_INVALID_VALUE, "%s(pname=%s)", func,
2231 _mesa_enum_to_string(pname));
2232 return TYPE_INVALID;
2233 }
2234
2235 void GLAPIENTRY
2236 _mesa_GetBooleani_v( GLenum pname, GLuint index, GLboolean *params )
2237 {
2238 union value v;
2239 enum value_type type =
2240 find_value_indexed("glGetBooleani_v", pname, index, &v);
2241
2242 switch (type) {
2243 case TYPE_INT:
2244 params[0] = INT_TO_BOOLEAN(v.value_int);
2245 break;
2246 case TYPE_INT_4:
2247 params[0] = INT_TO_BOOLEAN(v.value_int_4[0]);
2248 params[1] = INT_TO_BOOLEAN(v.value_int_4[1]);
2249 params[2] = INT_TO_BOOLEAN(v.value_int_4[2]);
2250 params[3] = INT_TO_BOOLEAN(v.value_int_4[3]);
2251 break;
2252 case TYPE_INT64:
2253 params[0] = INT64_TO_BOOLEAN(v.value_int64);
2254 break;
2255 default:
2256 ; /* nothing - GL error was recorded */
2257 }
2258 }
2259
2260 void GLAPIENTRY
2261 _mesa_GetIntegeri_v( GLenum pname, GLuint index, GLint *params )
2262 {
2263 union value v;
2264 enum value_type type =
2265 find_value_indexed("glGetIntegeri_v", pname, index, &v);
2266
2267 switch (type) {
2268 case TYPE_FLOAT_4:
2269 case TYPE_FLOATN_4:
2270 params[3] = IROUND(v.value_float_4[3]);
2271 case TYPE_FLOAT_3:
2272 case TYPE_FLOATN_3:
2273 params[2] = IROUND(v.value_float_4[2]);
2274 case TYPE_FLOAT_2:
2275 case TYPE_FLOATN_2:
2276 params[1] = IROUND(v.value_float_4[1]);
2277 case TYPE_FLOAT:
2278 case TYPE_FLOATN:
2279 params[0] = IROUND(v.value_float_4[0]);
2280 break;
2281
2282 case TYPE_DOUBLEN_2:
2283 params[1] = IROUND(v.value_double_2[1]);
2284 case TYPE_DOUBLEN:
2285 params[0] = IROUND(v.value_double_2[0]);
2286 break;
2287
2288 case TYPE_INT:
2289 params[0] = v.value_int;
2290 break;
2291 case TYPE_INT_4:
2292 params[0] = v.value_int_4[0];
2293 params[1] = v.value_int_4[1];
2294 params[2] = v.value_int_4[2];
2295 params[3] = v.value_int_4[3];
2296 break;
2297 case TYPE_INT64:
2298 params[0] = INT64_TO_INT(v.value_int64);
2299 break;
2300 default:
2301 ; /* nothing - GL error was recorded */
2302 }
2303 }
2304
2305 void GLAPIENTRY
2306 _mesa_GetInteger64i_v( GLenum pname, GLuint index, GLint64 *params )
2307 {
2308 union value v;
2309 enum value_type type =
2310 find_value_indexed("glGetInteger64i_v", pname, index, &v);
2311
2312 switch (type) {
2313 case TYPE_INT:
2314 params[0] = v.value_int;
2315 break;
2316 case TYPE_INT_4:
2317 params[0] = v.value_int_4[0];
2318 params[1] = v.value_int_4[1];
2319 params[2] = v.value_int_4[2];
2320 params[3] = v.value_int_4[3];
2321 break;
2322 case TYPE_INT64:
2323 params[0] = v.value_int64;
2324 break;
2325 default:
2326 ; /* nothing - GL error was recorded */
2327 }
2328 }
2329
2330 void GLAPIENTRY
2331 _mesa_GetFloati_v(GLenum pname, GLuint index, GLfloat *params)
2332 {
2333 int i;
2334 GLmatrix *m;
2335 union value v;
2336 enum value_type type =
2337 find_value_indexed("glGetFloati_v", pname, index, &v);
2338
2339 switch (type) {
2340 case TYPE_FLOAT_4:
2341 case TYPE_FLOATN_4:
2342 params[3] = v.value_float_4[3];
2343 case TYPE_FLOAT_3:
2344 case TYPE_FLOATN_3:
2345 params[2] = v.value_float_4[2];
2346 case TYPE_FLOAT_2:
2347 case TYPE_FLOATN_2:
2348 params[1] = v.value_float_4[1];
2349 case TYPE_FLOAT:
2350 case TYPE_FLOATN:
2351 params[0] = v.value_float_4[0];
2352 break;
2353
2354 case TYPE_DOUBLEN_2:
2355 params[1] = (GLfloat) v.value_double_2[1];
2356 case TYPE_DOUBLEN:
2357 params[0] = (GLfloat) v.value_double_2[0];
2358 break;
2359
2360 case TYPE_INT_4:
2361 params[3] = (GLfloat) v.value_int_4[3];
2362 case TYPE_INT_3:
2363 params[2] = (GLfloat) v.value_int_4[2];
2364 case TYPE_INT_2:
2365 case TYPE_ENUM_2:
2366 params[1] = (GLfloat) v.value_int_4[1];
2367 case TYPE_INT:
2368 case TYPE_ENUM:
2369 params[0] = (GLfloat) v.value_int_4[0];
2370 break;
2371
2372 case TYPE_INT_N:
2373 for (i = 0; i < v.value_int_n.n; i++)
2374 params[i] = INT_TO_FLOAT(v.value_int_n.ints[i]);
2375 break;
2376
2377 case TYPE_INT64:
2378 params[0] = (GLfloat) v.value_int64;
2379 break;
2380
2381 case TYPE_BOOLEAN:
2382 params[0] = BOOLEAN_TO_FLOAT(v.value_bool);
2383 break;
2384
2385 case TYPE_MATRIX:
2386 m = *(GLmatrix **) &v;
2387 for (i = 0; i < 16; i++)
2388 params[i] = m->m[i];
2389 break;
2390
2391 case TYPE_MATRIX_T:
2392 m = *(GLmatrix **) &v;
2393 for (i = 0; i < 16; i++)
2394 params[i] = m->m[transpose[i]];
2395 break;
2396
2397 default:
2398 ;
2399 }
2400 }
2401
2402 void GLAPIENTRY
2403 _mesa_GetDoublei_v(GLenum pname, GLuint index, GLdouble *params)
2404 {
2405 int i;
2406 GLmatrix *m;
2407 union value v;
2408 enum value_type type =
2409 find_value_indexed("glGetDoublei_v", pname, index, &v);
2410
2411 switch (type) {
2412 case TYPE_FLOAT_4:
2413 case TYPE_FLOATN_4:
2414 params[3] = (GLdouble) v.value_float_4[3];
2415 case TYPE_FLOAT_3:
2416 case TYPE_FLOATN_3:
2417 params[2] = (GLdouble) v.value_float_4[2];
2418 case TYPE_FLOAT_2:
2419 case TYPE_FLOATN_2:
2420 params[1] = (GLdouble) v.value_float_4[1];
2421 case TYPE_FLOAT:
2422 case TYPE_FLOATN:
2423 params[0] = (GLdouble) v.value_float_4[0];
2424 break;
2425
2426 case TYPE_DOUBLEN_2:
2427 params[1] = v.value_double_2[1];
2428 case TYPE_DOUBLEN:
2429 params[0] = v.value_double_2[0];
2430 break;
2431
2432 case TYPE_INT_4:
2433 params[3] = (GLdouble) v.value_int_4[3];
2434 case TYPE_INT_3:
2435 params[2] = (GLdouble) v.value_int_4[2];
2436 case TYPE_INT_2:
2437 case TYPE_ENUM_2:
2438 params[1] = (GLdouble) v.value_int_4[1];
2439 case TYPE_INT:
2440 case TYPE_ENUM:
2441 params[0] = (GLdouble) v.value_int_4[0];
2442 break;
2443
2444 case TYPE_INT_N:
2445 for (i = 0; i < v.value_int_n.n; i++)
2446 params[i] = (GLdouble) INT_TO_FLOAT(v.value_int_n.ints[i]);
2447 break;
2448
2449 case TYPE_INT64:
2450 params[0] = (GLdouble) v.value_int64;
2451 break;
2452
2453 case TYPE_BOOLEAN:
2454 params[0] = (GLdouble) BOOLEAN_TO_FLOAT(v.value_bool);
2455 break;
2456
2457 case TYPE_MATRIX:
2458 m = *(GLmatrix **) &v;
2459 for (i = 0; i < 16; i++)
2460 params[i] = (GLdouble) m->m[i];
2461 break;
2462
2463 case TYPE_MATRIX_T:
2464 m = *(GLmatrix **) &v;
2465 for (i = 0; i < 16; i++)
2466 params[i] = (GLdouble) m->m[transpose[i]];
2467 break;
2468
2469 default:
2470 ;
2471 }
2472 }
2473
2474 void GLAPIENTRY
2475 _mesa_GetFixedv(GLenum pname, GLfixed *params)
2476 {
2477 const struct value_desc *d;
2478 union value v;
2479 GLmatrix *m;
2480 int shift, i;
2481 void *p;
2482
2483 d = find_value("glGetDoublev", pname, &p, &v);
2484 switch (d->type) {
2485 case TYPE_INVALID:
2486 break;
2487 case TYPE_CONST:
2488 params[0] = INT_TO_FIXED(d->offset);
2489 break;
2490
2491 case TYPE_FLOAT_4:
2492 case TYPE_FLOATN_4:
2493 params[3] = FLOAT_TO_FIXED(((GLfloat *) p)[3]);
2494 case TYPE_FLOAT_3:
2495 case TYPE_FLOATN_3:
2496 params[2] = FLOAT_TO_FIXED(((GLfloat *) p)[2]);
2497 case TYPE_FLOAT_2:
2498 case TYPE_FLOATN_2:
2499 params[1] = FLOAT_TO_FIXED(((GLfloat *) p)[1]);
2500 case TYPE_FLOAT:
2501 case TYPE_FLOATN:
2502 params[0] = FLOAT_TO_FIXED(((GLfloat *) p)[0]);
2503 break;
2504
2505 case TYPE_DOUBLEN_2:
2506 params[1] = FLOAT_TO_FIXED(((GLdouble *) p)[1]);
2507 case TYPE_DOUBLEN:
2508 params[0] = FLOAT_TO_FIXED(((GLdouble *) p)[0]);
2509 break;
2510
2511 case TYPE_INT_4:
2512 params[3] = INT_TO_FIXED(((GLint *) p)[3]);
2513 case TYPE_INT_3:
2514 params[2] = INT_TO_FIXED(((GLint *) p)[2]);
2515 case TYPE_INT_2:
2516 case TYPE_ENUM_2:
2517 params[1] = INT_TO_FIXED(((GLint *) p)[1]);
2518 case TYPE_INT:
2519 case TYPE_ENUM:
2520 params[0] = INT_TO_FIXED(((GLint *) p)[0]);
2521 break;
2522
2523 case TYPE_INT_N:
2524 for (i = 0; i < v.value_int_n.n; i++)
2525 params[i] = INT_TO_FIXED(v.value_int_n.ints[i]);
2526 break;
2527
2528 case TYPE_INT64:
2529 params[0] = ((GLint64 *) p)[0];
2530 break;
2531
2532 case TYPE_BOOLEAN:
2533 params[0] = BOOLEAN_TO_FIXED(((GLboolean*) p)[0]);
2534 break;
2535
2536 case TYPE_MATRIX:
2537 m = *(GLmatrix **) p;
2538 for (i = 0; i < 16; i++)
2539 params[i] = FLOAT_TO_FIXED(m->m[i]);
2540 break;
2541
2542 case TYPE_MATRIX_T:
2543 m = *(GLmatrix **) p;
2544 for (i = 0; i < 16; i++)
2545 params[i] = FLOAT_TO_FIXED(m->m[transpose[i]]);
2546 break;
2547
2548 case TYPE_BIT_0:
2549 case TYPE_BIT_1:
2550 case TYPE_BIT_2:
2551 case TYPE_BIT_3:
2552 case TYPE_BIT_4:
2553 case TYPE_BIT_5:
2554 case TYPE_BIT_6:
2555 case TYPE_BIT_7:
2556 shift = d->type - TYPE_BIT_0;
2557 params[0] = BOOLEAN_TO_FIXED((*(GLbitfield *) p >> shift) & 1);
2558 break;
2559 }
2560 }