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