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mesa: enable enums for OES_geometry_shader
[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
387 static const int extra_ARB_framebuffer_no_attachments_and_geometry_shader[] = {
388 EXTRA_EXT_FB_NO_ATTACH_GS,
389 EXTRA_END
390 };
391
392 static const int extra_ARB_viewport_array_or_oes_geometry_shader[] = {
393 EXT(ARB_viewport_array),
394 EXTRA_EXT_ES_GS,
395 EXTRA_END
396 };
397
398 static const int extra_ARB_gpu_shader5_or_oes_geometry_shader[] = {
399 EXT(ARB_gpu_shader5),
400 EXTRA_EXT_ES_GS,
401 EXTRA_END
402 };
403
404 EXTRA_EXT(ARB_texture_cube_map);
405 EXTRA_EXT(EXT_texture_array);
406 EXTRA_EXT(NV_fog_distance);
407 EXTRA_EXT(EXT_texture_filter_anisotropic);
408 EXTRA_EXT(NV_point_sprite);
409 EXTRA_EXT(NV_texture_rectangle);
410 EXTRA_EXT(EXT_stencil_two_side);
411 EXTRA_EXT(EXT_depth_bounds_test);
412 EXTRA_EXT(ARB_depth_clamp);
413 EXTRA_EXT(ATI_fragment_shader);
414 EXTRA_EXT(EXT_provoking_vertex);
415 EXTRA_EXT(ARB_fragment_shader);
416 EXTRA_EXT(ARB_fragment_program);
417 EXTRA_EXT2(ARB_framebuffer_object, EXT_framebuffer_multisample);
418 EXTRA_EXT(ARB_seamless_cube_map);
419 EXTRA_EXT(ARB_sync);
420 EXTRA_EXT(ARB_vertex_shader);
421 EXTRA_EXT(EXT_transform_feedback);
422 EXTRA_EXT(ARB_transform_feedback3);
423 EXTRA_EXT(EXT_pixel_buffer_object);
424 EXTRA_EXT(ARB_vertex_program);
425 EXTRA_EXT2(NV_point_sprite, ARB_point_sprite);
426 EXTRA_EXT2(ARB_vertex_program, ARB_fragment_program);
427 EXTRA_EXT(ARB_color_buffer_float);
428 EXTRA_EXT(EXT_framebuffer_sRGB);
429 EXTRA_EXT(OES_EGL_image_external);
430 EXTRA_EXT(ARB_blend_func_extended);
431 EXTRA_EXT(ARB_uniform_buffer_object);
432 EXTRA_EXT(ARB_timer_query);
433 EXTRA_EXT(ARB_texture_cube_map_array);
434 EXTRA_EXT(ARB_texture_buffer_range);
435 EXTRA_EXT(ARB_texture_multisample);
436 EXTRA_EXT(ARB_texture_gather);
437 EXTRA_EXT(ARB_shader_atomic_counters);
438 EXTRA_EXT(ARB_draw_indirect);
439 EXTRA_EXT(ARB_shader_image_load_store);
440 EXTRA_EXT(ARB_viewport_array);
441 EXTRA_EXT(ARB_compute_shader);
442 EXTRA_EXT(ARB_gpu_shader5);
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_timer_query */
1042 case GL_TIMESTAMP:
1043 if (ctx->Driver.GetTimestamp) {
1044 v->value_int64 = ctx->Driver.GetTimestamp(ctx);
1045 }
1046 else {
1047 _mesa_problem(ctx, "driver doesn't implement GetTimestamp");
1048 }
1049 break;
1050 /* GL_KHR_DEBUG */
1051 case GL_DEBUG_LOGGED_MESSAGES:
1052 case GL_DEBUG_NEXT_LOGGED_MESSAGE_LENGTH:
1053 case GL_DEBUG_GROUP_STACK_DEPTH:
1054 v->value_int = _mesa_get_debug_state_int(ctx, d->pname);
1055 break;
1056 /* GL_ARB_shader_atomic_counters */
1057 case GL_ATOMIC_COUNTER_BUFFER_BINDING:
1058 if (ctx->AtomicBuffer) {
1059 v->value_int = ctx->AtomicBuffer->Name;
1060 } else {
1061 v->value_int = 0;
1062 }
1063 break;
1064 /* GL_ARB_draw_indirect */
1065 case GL_DRAW_INDIRECT_BUFFER_BINDING:
1066 v->value_int = ctx->DrawIndirectBuffer->Name;
1067 break;
1068 /* GL_ARB_indirect_parameters */
1069 case GL_PARAMETER_BUFFER_BINDING_ARB:
1070 v->value_int = ctx->ParameterBuffer->Name;
1071 break;
1072 /* GL_ARB_separate_shader_objects */
1073 case GL_PROGRAM_PIPELINE_BINDING:
1074 if (ctx->Pipeline.Current) {
1075 v->value_int = ctx->Pipeline.Current->Name;
1076 } else {
1077 v->value_int = 0;
1078 }
1079 break;
1080 /* GL_ARB_compute_shader */
1081 case GL_DISPATCH_INDIRECT_BUFFER_BINDING:
1082 v->value_int = ctx->DispatchIndirectBuffer->Name;
1083 break;
1084 }
1085 }
1086
1087 /**
1088 * Check extra constraints on a struct value_desc descriptor
1089 *
1090 * If a struct value_desc has a non-NULL extra pointer, it means that
1091 * there are a number of extra constraints to check or actions to
1092 * perform. The extras is just an integer array where each integer
1093 * encode different constraints or actions.
1094 *
1095 * \param ctx current context
1096 * \param func name of calling glGet*v() function for error reporting
1097 * \param d the struct value_desc that has the extra constraints
1098 *
1099 * \return GL_FALSE if all of the constraints were not satisfied,
1100 * otherwise GL_TRUE.
1101 */
1102 static GLboolean
1103 check_extra(struct gl_context *ctx, const char *func, const struct value_desc *d)
1104 {
1105 const GLuint version = ctx->Version;
1106 GLboolean api_check = GL_FALSE;
1107 GLboolean api_found = GL_FALSE;
1108 const int *e;
1109
1110 for (e = d->extra; *e != EXTRA_END; e++) {
1111 switch (*e) {
1112 case EXTRA_VERSION_30:
1113 api_check = GL_TRUE;
1114 if (version >= 30)
1115 api_found = GL_TRUE;
1116 break;
1117 case EXTRA_VERSION_31:
1118 api_check = GL_TRUE;
1119 if (version >= 31)
1120 api_found = GL_TRUE;
1121 break;
1122 case EXTRA_VERSION_32:
1123 api_check = GL_TRUE;
1124 if (version >= 32)
1125 api_found = GL_TRUE;
1126 break;
1127 case EXTRA_NEW_FRAG_CLAMP:
1128 if (ctx->NewState & (_NEW_BUFFERS | _NEW_FRAG_CLAMP))
1129 _mesa_update_state(ctx);
1130 break;
1131 case EXTRA_API_ES2:
1132 api_check = GL_TRUE;
1133 if (ctx->API == API_OPENGLES2)
1134 api_found = GL_TRUE;
1135 break;
1136 case EXTRA_API_ES3:
1137 api_check = GL_TRUE;
1138 if (_mesa_is_gles3(ctx))
1139 api_found = GL_TRUE;
1140 break;
1141 case EXTRA_API_ES31:
1142 api_check = GL_TRUE;
1143 if (_mesa_is_gles31(ctx))
1144 api_found = GL_TRUE;
1145 break;
1146 case EXTRA_API_GL:
1147 api_check = GL_TRUE;
1148 if (_mesa_is_desktop_gl(ctx))
1149 api_found = GL_TRUE;
1150 break;
1151 case EXTRA_API_GL_CORE:
1152 api_check = GL_TRUE;
1153 if (ctx->API == API_OPENGL_CORE)
1154 api_found = GL_TRUE;
1155 break;
1156 case EXTRA_NEW_BUFFERS:
1157 if (ctx->NewState & _NEW_BUFFERS)
1158 _mesa_update_state(ctx);
1159 break;
1160 case EXTRA_FLUSH_CURRENT:
1161 FLUSH_CURRENT(ctx, 0);
1162 break;
1163 case EXTRA_VALID_DRAW_BUFFER:
1164 if (d->pname - GL_DRAW_BUFFER0_ARB >= ctx->Const.MaxDrawBuffers) {
1165 _mesa_error(ctx, GL_INVALID_OPERATION, "%s(draw buffer %u)",
1166 func, d->pname - GL_DRAW_BUFFER0_ARB);
1167 return GL_FALSE;
1168 }
1169 break;
1170 case EXTRA_VALID_TEXTURE_UNIT:
1171 if (ctx->Texture.CurrentUnit >= ctx->Const.MaxTextureCoordUnits) {
1172 _mesa_error(ctx, GL_INVALID_OPERATION, "%s(texture %u)",
1173 func, ctx->Texture.CurrentUnit);
1174 return GL_FALSE;
1175 }
1176 break;
1177 case EXTRA_VALID_CLIP_DISTANCE:
1178 if (d->pname - GL_CLIP_DISTANCE0 >= ctx->Const.MaxClipPlanes) {
1179 _mesa_error(ctx, GL_INVALID_ENUM, "%s(clip distance %u)",
1180 func, d->pname - GL_CLIP_DISTANCE0);
1181 return GL_FALSE;
1182 }
1183 break;
1184 case EXTRA_GLSL_130:
1185 api_check = GL_TRUE;
1186 if (ctx->Const.GLSLVersion >= 130)
1187 api_found = GL_TRUE;
1188 break;
1189 case EXTRA_EXT_UBO_GS:
1190 api_check = GL_TRUE;
1191 api_found = (ctx->Extensions.ARB_uniform_buffer_object &&
1192 _mesa_has_geometry_shaders(ctx));
1193 break;
1194 case EXTRA_EXT_ATOMICS_GS:
1195 api_check = GL_TRUE;
1196 api_found = (ctx->Extensions.ARB_shader_atomic_counters &&
1197 _mesa_has_geometry_shaders(ctx));
1198 break;
1199 case EXTRA_EXT_SHADER_IMAGE_GS:
1200 api_check = GL_TRUE;
1201 api_found = (ctx->Extensions.ARB_shader_image_load_store &&
1202 _mesa_has_geometry_shaders(ctx));
1203 break;
1204 case EXTRA_EXT_ATOMICS_TESS:
1205 api_check = GL_TRUE;
1206 api_found = ctx->Extensions.ARB_shader_atomic_counters &&
1207 _mesa_has_tessellation(ctx);
1208 break;
1209 case EXTRA_EXT_SHADER_IMAGE_TESS:
1210 api_check = GL_TRUE;
1211 api_found = ctx->Extensions.ARB_shader_image_load_store &&
1212 _mesa_has_tessellation(ctx);
1213 break;
1214 case EXTRA_EXT_SSBO_GS:
1215 api_check = GL_TRUE;
1216 api_found = (ctx->Extensions.ARB_shader_storage_buffer_object &&
1217 _mesa_has_geometry_shaders(ctx));
1218 break;
1219 case EXTRA_EXT_FB_NO_ATTACH_GS:
1220 api_check = GL_TRUE;
1221 api_found = (ctx->Extensions.ARB_framebuffer_no_attachments &&
1222 _mesa_has_geometry_shaders(ctx));
1223 break;
1224 case EXTRA_EXT_ES_GS:
1225 api_check = GL_TRUE;
1226 api_found = _mesa_has_OES_geometry_shader(ctx);
1227 break;
1228 case EXTRA_END:
1229 break;
1230 default: /* *e is a offset into the extension struct */
1231 api_check = GL_TRUE;
1232 if (*(GLboolean *) ((char *) &ctx->Extensions + *e))
1233 api_found = GL_TRUE;
1234 break;
1235 }
1236 }
1237
1238 if (api_check && !api_found) {
1239 _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func,
1240 _mesa_enum_to_string(d->pname));
1241 return GL_FALSE;
1242 }
1243
1244 return GL_TRUE;
1245 }
1246
1247 static const struct value_desc error_value =
1248 { 0, 0, TYPE_INVALID, NO_OFFSET, NO_EXTRA };
1249
1250 /**
1251 * Find the struct value_desc corresponding to the enum 'pname'.
1252 *
1253 * We hash the enum value to get an index into the 'table' array,
1254 * which holds the index in the 'values' array of struct value_desc.
1255 * Once we've found the entry, we do the extra checks, if any, then
1256 * look up the value and return a pointer to it.
1257 *
1258 * If the value has to be computed (for example, it's the result of a
1259 * function call or we need to add 1 to it), we use the tmp 'v' to
1260 * store the result.
1261 *
1262 * \param func name of glGet*v() func for error reporting
1263 * \param pname the enum value we're looking up
1264 * \param p is were we return the pointer to the value
1265 * \param v a tmp union value variable in the calling glGet*v() function
1266 *
1267 * \return the struct value_desc corresponding to the enum or a struct
1268 * value_desc of TYPE_INVALID if not found. This lets the calling
1269 * glGet*v() function jump right into a switch statement and
1270 * handle errors there instead of having to check for NULL.
1271 */
1272 static const struct value_desc *
1273 find_value(const char *func, GLenum pname, void **p, union value *v)
1274 {
1275 GET_CURRENT_CONTEXT(ctx);
1276 struct gl_texture_unit *unit;
1277 int mask, hash;
1278 const struct value_desc *d;
1279 int api;
1280
1281 api = ctx->API;
1282 /* We index into the table_set[] list of per-API hash tables using the API's
1283 * value in the gl_api enum. Since GLES 3 doesn't have an API_OPENGL* enum
1284 * value since it's compatible with GLES2 its entry in table_set[] is at the
1285 * end.
1286 */
1287 STATIC_ASSERT(ARRAY_SIZE(table_set) == API_OPENGL_LAST + 3);
1288 if (_mesa_is_gles3(ctx)) {
1289 api = API_OPENGL_LAST + 1;
1290 }
1291 if (_mesa_is_gles31(ctx)) {
1292 api = API_OPENGL_LAST + 2;
1293 }
1294 mask = ARRAY_SIZE(table(api)) - 1;
1295 hash = (pname * prime_factor);
1296 while (1) {
1297 int idx = table(api)[hash & mask];
1298
1299 /* If the enum isn't valid, the hash walk ends with index 0,
1300 * pointing to the first entry of values[] which doesn't hold
1301 * any valid enum. */
1302 if (unlikely(idx == 0)) {
1303 _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func,
1304 _mesa_enum_to_string(pname));
1305 return &error_value;
1306 }
1307
1308 d = &values[idx];
1309 if (likely(d->pname == pname))
1310 break;
1311
1312 hash += prime_step;
1313 }
1314
1315 if (unlikely(d->extra && !check_extra(ctx, func, d)))
1316 return &error_value;
1317
1318 switch (d->location) {
1319 case LOC_BUFFER:
1320 *p = ((char *) ctx->DrawBuffer + d->offset);
1321 return d;
1322 case LOC_CONTEXT:
1323 *p = ((char *) ctx + d->offset);
1324 return d;
1325 case LOC_ARRAY:
1326 *p = ((char *) ctx->Array.VAO + d->offset);
1327 return d;
1328 case LOC_TEXUNIT:
1329 unit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
1330 *p = ((char *) unit + d->offset);
1331 return d;
1332 case LOC_CUSTOM:
1333 find_custom_value(ctx, d, v);
1334 *p = v;
1335 return d;
1336 default:
1337 assert(0);
1338 break;
1339 }
1340
1341 /* silence warning */
1342 return &error_value;
1343 }
1344
1345 static const int transpose[] = {
1346 0, 4, 8, 12,
1347 1, 5, 9, 13,
1348 2, 6, 10, 14,
1349 3, 7, 11, 15
1350 };
1351
1352 void GLAPIENTRY
1353 _mesa_GetBooleanv(GLenum pname, GLboolean *params)
1354 {
1355 const struct value_desc *d;
1356 union value v;
1357 GLmatrix *m;
1358 int shift, i;
1359 void *p;
1360
1361 d = find_value("glGetBooleanv", pname, &p, &v);
1362 switch (d->type) {
1363 case TYPE_INVALID:
1364 break;
1365 case TYPE_CONST:
1366 params[0] = INT_TO_BOOLEAN(d->offset);
1367 break;
1368
1369 case TYPE_FLOAT_4:
1370 case TYPE_FLOATN_4:
1371 params[3] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[3]);
1372 case TYPE_FLOAT_3:
1373 case TYPE_FLOATN_3:
1374 params[2] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[2]);
1375 case TYPE_FLOAT_2:
1376 case TYPE_FLOATN_2:
1377 params[1] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[1]);
1378 case TYPE_FLOAT:
1379 case TYPE_FLOATN:
1380 params[0] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[0]);
1381 break;
1382
1383 case TYPE_DOUBLEN_2:
1384 params[1] = FLOAT_TO_BOOLEAN(((GLdouble *) p)[1]);
1385 case TYPE_DOUBLEN:
1386 params[0] = FLOAT_TO_BOOLEAN(((GLdouble *) p)[0]);
1387 break;
1388
1389 case TYPE_INT_4:
1390 params[3] = INT_TO_BOOLEAN(((GLint *) p)[3]);
1391 case TYPE_INT_3:
1392 params[2] = INT_TO_BOOLEAN(((GLint *) p)[2]);
1393 case TYPE_INT_2:
1394 case TYPE_ENUM_2:
1395 params[1] = INT_TO_BOOLEAN(((GLint *) p)[1]);
1396 case TYPE_INT:
1397 case TYPE_ENUM:
1398 params[0] = INT_TO_BOOLEAN(((GLint *) p)[0]);
1399 break;
1400
1401 case TYPE_INT_N:
1402 for (i = 0; i < v.value_int_n.n; i++)
1403 params[i] = INT_TO_BOOLEAN(v.value_int_n.ints[i]);
1404 break;
1405
1406 case TYPE_INT64:
1407 params[0] = INT64_TO_BOOLEAN(((GLint64 *) p)[0]);
1408 break;
1409
1410 case TYPE_BOOLEAN:
1411 params[0] = ((GLboolean*) p)[0];
1412 break;
1413
1414 case TYPE_MATRIX:
1415 m = *(GLmatrix **) p;
1416 for (i = 0; i < 16; i++)
1417 params[i] = FLOAT_TO_BOOLEAN(m->m[i]);
1418 break;
1419
1420 case TYPE_MATRIX_T:
1421 m = *(GLmatrix **) p;
1422 for (i = 0; i < 16; i++)
1423 params[i] = FLOAT_TO_BOOLEAN(m->m[transpose[i]]);
1424 break;
1425
1426 case TYPE_BIT_0:
1427 case TYPE_BIT_1:
1428 case TYPE_BIT_2:
1429 case TYPE_BIT_3:
1430 case TYPE_BIT_4:
1431 case TYPE_BIT_5:
1432 case TYPE_BIT_6:
1433 case TYPE_BIT_7:
1434 shift = d->type - TYPE_BIT_0;
1435 params[0] = (*(GLbitfield *) p >> shift) & 1;
1436 break;
1437 }
1438 }
1439
1440 void GLAPIENTRY
1441 _mesa_GetFloatv(GLenum pname, GLfloat *params)
1442 {
1443 const struct value_desc *d;
1444 union value v;
1445 GLmatrix *m;
1446 int shift, i;
1447 void *p;
1448
1449 d = find_value("glGetFloatv", pname, &p, &v);
1450 switch (d->type) {
1451 case TYPE_INVALID:
1452 break;
1453 case TYPE_CONST:
1454 params[0] = (GLfloat) d->offset;
1455 break;
1456
1457 case TYPE_FLOAT_4:
1458 case TYPE_FLOATN_4:
1459 params[3] = ((GLfloat *) p)[3];
1460 case TYPE_FLOAT_3:
1461 case TYPE_FLOATN_3:
1462 params[2] = ((GLfloat *) p)[2];
1463 case TYPE_FLOAT_2:
1464 case TYPE_FLOATN_2:
1465 params[1] = ((GLfloat *) p)[1];
1466 case TYPE_FLOAT:
1467 case TYPE_FLOATN:
1468 params[0] = ((GLfloat *) p)[0];
1469 break;
1470
1471 case TYPE_DOUBLEN_2:
1472 params[1] = (GLfloat) (((GLdouble *) p)[1]);
1473 case TYPE_DOUBLEN:
1474 params[0] = (GLfloat) (((GLdouble *) p)[0]);
1475 break;
1476
1477 case TYPE_INT_4:
1478 params[3] = (GLfloat) (((GLint *) p)[3]);
1479 case TYPE_INT_3:
1480 params[2] = (GLfloat) (((GLint *) p)[2]);
1481 case TYPE_INT_2:
1482 case TYPE_ENUM_2:
1483 params[1] = (GLfloat) (((GLint *) p)[1]);
1484 case TYPE_INT:
1485 case TYPE_ENUM:
1486 params[0] = (GLfloat) (((GLint *) p)[0]);
1487 break;
1488
1489 case TYPE_INT_N:
1490 for (i = 0; i < v.value_int_n.n; i++)
1491 params[i] = INT_TO_FLOAT(v.value_int_n.ints[i]);
1492 break;
1493
1494 case TYPE_INT64:
1495 params[0] = (GLfloat) (((GLint64 *) p)[0]);
1496 break;
1497
1498 case TYPE_BOOLEAN:
1499 params[0] = BOOLEAN_TO_FLOAT(*(GLboolean*) p);
1500 break;
1501
1502 case TYPE_MATRIX:
1503 m = *(GLmatrix **) p;
1504 for (i = 0; i < 16; i++)
1505 params[i] = m->m[i];
1506 break;
1507
1508 case TYPE_MATRIX_T:
1509 m = *(GLmatrix **) p;
1510 for (i = 0; i < 16; i++)
1511 params[i] = m->m[transpose[i]];
1512 break;
1513
1514 case TYPE_BIT_0:
1515 case TYPE_BIT_1:
1516 case TYPE_BIT_2:
1517 case TYPE_BIT_3:
1518 case TYPE_BIT_4:
1519 case TYPE_BIT_5:
1520 case TYPE_BIT_6:
1521 case TYPE_BIT_7:
1522 shift = d->type - TYPE_BIT_0;
1523 params[0] = BOOLEAN_TO_FLOAT((*(GLbitfield *) p >> shift) & 1);
1524 break;
1525 }
1526 }
1527
1528 void GLAPIENTRY
1529 _mesa_GetIntegerv(GLenum pname, GLint *params)
1530 {
1531 const struct value_desc *d;
1532 union value v;
1533 GLmatrix *m;
1534 int shift, i;
1535 void *p;
1536
1537 d = find_value("glGetIntegerv", pname, &p, &v);
1538 switch (d->type) {
1539 case TYPE_INVALID:
1540 break;
1541 case TYPE_CONST:
1542 params[0] = d->offset;
1543 break;
1544
1545 case TYPE_FLOAT_4:
1546 params[3] = IROUND(((GLfloat *) p)[3]);
1547 case TYPE_FLOAT_3:
1548 params[2] = IROUND(((GLfloat *) p)[2]);
1549 case TYPE_FLOAT_2:
1550 params[1] = IROUND(((GLfloat *) p)[1]);
1551 case TYPE_FLOAT:
1552 params[0] = IROUND(((GLfloat *) p)[0]);
1553 break;
1554
1555 case TYPE_FLOATN_4:
1556 params[3] = FLOAT_TO_INT(((GLfloat *) p)[3]);
1557 case TYPE_FLOATN_3:
1558 params[2] = FLOAT_TO_INT(((GLfloat *) p)[2]);
1559 case TYPE_FLOATN_2:
1560 params[1] = FLOAT_TO_INT(((GLfloat *) p)[1]);
1561 case TYPE_FLOATN:
1562 params[0] = FLOAT_TO_INT(((GLfloat *) p)[0]);
1563 break;
1564
1565 case TYPE_DOUBLEN_2:
1566 params[1] = FLOAT_TO_INT(((GLdouble *) p)[1]);
1567 case TYPE_DOUBLEN:
1568 params[0] = FLOAT_TO_INT(((GLdouble *) p)[0]);
1569 break;
1570
1571 case TYPE_INT_4:
1572 params[3] = ((GLint *) p)[3];
1573 case TYPE_INT_3:
1574 params[2] = ((GLint *) p)[2];
1575 case TYPE_INT_2:
1576 case TYPE_ENUM_2:
1577 params[1] = ((GLint *) p)[1];
1578 case TYPE_INT:
1579 case TYPE_ENUM:
1580 params[0] = ((GLint *) p)[0];
1581 break;
1582
1583 case TYPE_INT_N:
1584 for (i = 0; i < v.value_int_n.n; i++)
1585 params[i] = v.value_int_n.ints[i];
1586 break;
1587
1588 case TYPE_INT64:
1589 params[0] = INT64_TO_INT(((GLint64 *) p)[0]);
1590 break;
1591
1592 case TYPE_BOOLEAN:
1593 params[0] = BOOLEAN_TO_INT(*(GLboolean*) p);
1594 break;
1595
1596 case TYPE_MATRIX:
1597 m = *(GLmatrix **) p;
1598 for (i = 0; i < 16; i++)
1599 params[i] = FLOAT_TO_INT(m->m[i]);
1600 break;
1601
1602 case TYPE_MATRIX_T:
1603 m = *(GLmatrix **) p;
1604 for (i = 0; i < 16; i++)
1605 params[i] = FLOAT_TO_INT(m->m[transpose[i]]);
1606 break;
1607
1608 case TYPE_BIT_0:
1609 case TYPE_BIT_1:
1610 case TYPE_BIT_2:
1611 case TYPE_BIT_3:
1612 case TYPE_BIT_4:
1613 case TYPE_BIT_5:
1614 case TYPE_BIT_6:
1615 case TYPE_BIT_7:
1616 shift = d->type - TYPE_BIT_0;
1617 params[0] = (*(GLbitfield *) p >> shift) & 1;
1618 break;
1619 }
1620 }
1621
1622 void GLAPIENTRY
1623 _mesa_GetInteger64v(GLenum pname, GLint64 *params)
1624 {
1625 const struct value_desc *d;
1626 union value v;
1627 GLmatrix *m;
1628 int shift, i;
1629 void *p;
1630
1631 d = find_value("glGetInteger64v", pname, &p, &v);
1632 switch (d->type) {
1633 case TYPE_INVALID:
1634 break;
1635 case TYPE_CONST:
1636 params[0] = d->offset;
1637 break;
1638
1639 case TYPE_FLOAT_4:
1640 params[3] = IROUND64(((GLfloat *) p)[3]);
1641 case TYPE_FLOAT_3:
1642 params[2] = IROUND64(((GLfloat *) p)[2]);
1643 case TYPE_FLOAT_2:
1644 params[1] = IROUND64(((GLfloat *) p)[1]);
1645 case TYPE_FLOAT:
1646 params[0] = IROUND64(((GLfloat *) p)[0]);
1647 break;
1648
1649 case TYPE_FLOATN_4:
1650 params[3] = FLOAT_TO_INT64(((GLfloat *) p)[3]);
1651 case TYPE_FLOATN_3:
1652 params[2] = FLOAT_TO_INT64(((GLfloat *) p)[2]);
1653 case TYPE_FLOATN_2:
1654 params[1] = FLOAT_TO_INT64(((GLfloat *) p)[1]);
1655 case TYPE_FLOATN:
1656 params[0] = FLOAT_TO_INT64(((GLfloat *) p)[0]);
1657 break;
1658
1659 case TYPE_DOUBLEN_2:
1660 params[1] = FLOAT_TO_INT64(((GLdouble *) p)[1]);
1661 case TYPE_DOUBLEN:
1662 params[0] = FLOAT_TO_INT64(((GLdouble *) p)[0]);
1663 break;
1664
1665 case TYPE_INT_4:
1666 params[3] = ((GLint *) p)[3];
1667 case TYPE_INT_3:
1668 params[2] = ((GLint *) p)[2];
1669 case TYPE_INT_2:
1670 case TYPE_ENUM_2:
1671 params[1] = ((GLint *) p)[1];
1672 case TYPE_INT:
1673 case TYPE_ENUM:
1674 params[0] = ((GLint *) p)[0];
1675 break;
1676
1677 case TYPE_INT_N:
1678 for (i = 0; i < v.value_int_n.n; i++)
1679 params[i] = INT_TO_BOOLEAN(v.value_int_n.ints[i]);
1680 break;
1681
1682 case TYPE_INT64:
1683 params[0] = ((GLint64 *) p)[0];
1684 break;
1685
1686 case TYPE_BOOLEAN:
1687 params[0] = ((GLboolean*) p)[0];
1688 break;
1689
1690 case TYPE_MATRIX:
1691 m = *(GLmatrix **) p;
1692 for (i = 0; i < 16; i++)
1693 params[i] = FLOAT_TO_INT64(m->m[i]);
1694 break;
1695
1696 case TYPE_MATRIX_T:
1697 m = *(GLmatrix **) p;
1698 for (i = 0; i < 16; i++)
1699 params[i] = FLOAT_TO_INT64(m->m[transpose[i]]);
1700 break;
1701
1702 case TYPE_BIT_0:
1703 case TYPE_BIT_1:
1704 case TYPE_BIT_2:
1705 case TYPE_BIT_3:
1706 case TYPE_BIT_4:
1707 case TYPE_BIT_5:
1708 case TYPE_BIT_6:
1709 case TYPE_BIT_7:
1710 shift = d->type - TYPE_BIT_0;
1711 params[0] = (*(GLbitfield *) p >> shift) & 1;
1712 break;
1713 }
1714 }
1715
1716 void GLAPIENTRY
1717 _mesa_GetDoublev(GLenum pname, GLdouble *params)
1718 {
1719 const struct value_desc *d;
1720 union value v;
1721 GLmatrix *m;
1722 int shift, i;
1723 void *p;
1724
1725 d = find_value("glGetDoublev", pname, &p, &v);
1726 switch (d->type) {
1727 case TYPE_INVALID:
1728 break;
1729 case TYPE_CONST:
1730 params[0] = d->offset;
1731 break;
1732
1733 case TYPE_FLOAT_4:
1734 case TYPE_FLOATN_4:
1735 params[3] = ((GLfloat *) p)[3];
1736 case TYPE_FLOAT_3:
1737 case TYPE_FLOATN_3:
1738 params[2] = ((GLfloat *) p)[2];
1739 case TYPE_FLOAT_2:
1740 case TYPE_FLOATN_2:
1741 params[1] = ((GLfloat *) p)[1];
1742 case TYPE_FLOAT:
1743 case TYPE_FLOATN:
1744 params[0] = ((GLfloat *) p)[0];
1745 break;
1746
1747 case TYPE_DOUBLEN_2:
1748 params[1] = ((GLdouble *) p)[1];
1749 case TYPE_DOUBLEN:
1750 params[0] = ((GLdouble *) p)[0];
1751 break;
1752
1753 case TYPE_INT_4:
1754 params[3] = ((GLint *) p)[3];
1755 case TYPE_INT_3:
1756 params[2] = ((GLint *) p)[2];
1757 case TYPE_INT_2:
1758 case TYPE_ENUM_2:
1759 params[1] = ((GLint *) p)[1];
1760 case TYPE_INT:
1761 case TYPE_ENUM:
1762 params[0] = ((GLint *) p)[0];
1763 break;
1764
1765 case TYPE_INT_N:
1766 for (i = 0; i < v.value_int_n.n; i++)
1767 params[i] = v.value_int_n.ints[i];
1768 break;
1769
1770 case TYPE_INT64:
1771 params[0] = (GLdouble) (((GLint64 *) p)[0]);
1772 break;
1773
1774 case TYPE_BOOLEAN:
1775 params[0] = *(GLboolean*) p;
1776 break;
1777
1778 case TYPE_MATRIX:
1779 m = *(GLmatrix **) p;
1780 for (i = 0; i < 16; i++)
1781 params[i] = m->m[i];
1782 break;
1783
1784 case TYPE_MATRIX_T:
1785 m = *(GLmatrix **) p;
1786 for (i = 0; i < 16; i++)
1787 params[i] = m->m[transpose[i]];
1788 break;
1789
1790 case TYPE_BIT_0:
1791 case TYPE_BIT_1:
1792 case TYPE_BIT_2:
1793 case TYPE_BIT_3:
1794 case TYPE_BIT_4:
1795 case TYPE_BIT_5:
1796 case TYPE_BIT_6:
1797 case TYPE_BIT_7:
1798 shift = d->type - TYPE_BIT_0;
1799 params[0] = (*(GLbitfield *) p >> shift) & 1;
1800 break;
1801 }
1802 }
1803
1804 /**
1805 * Convert a GL texture binding enum such as GL_TEXTURE_BINDING_2D
1806 * into the corresponding Mesa texture target index.
1807 * \return TEXTURE_x_INDEX or -1 if binding is invalid
1808 */
1809 static int
1810 tex_binding_to_index(const struct gl_context *ctx, GLenum binding)
1811 {
1812 switch (binding) {
1813 case GL_TEXTURE_BINDING_1D:
1814 return _mesa_is_desktop_gl(ctx) ? TEXTURE_1D_INDEX : -1;
1815 case GL_TEXTURE_BINDING_2D:
1816 return TEXTURE_2D_INDEX;
1817 case GL_TEXTURE_BINDING_3D:
1818 return ctx->API != API_OPENGLES ? TEXTURE_3D_INDEX : -1;
1819 case GL_TEXTURE_BINDING_CUBE_MAP:
1820 return ctx->Extensions.ARB_texture_cube_map
1821 ? TEXTURE_CUBE_INDEX : -1;
1822 case GL_TEXTURE_BINDING_RECTANGLE:
1823 return _mesa_is_desktop_gl(ctx) && ctx->Extensions.NV_texture_rectangle
1824 ? TEXTURE_RECT_INDEX : -1;
1825 case GL_TEXTURE_BINDING_1D_ARRAY:
1826 return _mesa_is_desktop_gl(ctx) && ctx->Extensions.EXT_texture_array
1827 ? TEXTURE_1D_ARRAY_INDEX : -1;
1828 case GL_TEXTURE_BINDING_2D_ARRAY:
1829 return (_mesa_is_desktop_gl(ctx) && ctx->Extensions.EXT_texture_array)
1830 || _mesa_is_gles3(ctx)
1831 ? TEXTURE_2D_ARRAY_INDEX : -1;
1832 case GL_TEXTURE_BINDING_BUFFER:
1833 return ctx->API == API_OPENGL_CORE &&
1834 ctx->Extensions.ARB_texture_buffer_object ?
1835 TEXTURE_BUFFER_INDEX : -1;
1836 case GL_TEXTURE_BINDING_CUBE_MAP_ARRAY:
1837 return _mesa_is_desktop_gl(ctx) && ctx->Extensions.ARB_texture_cube_map_array
1838 ? TEXTURE_CUBE_ARRAY_INDEX : -1;
1839 case GL_TEXTURE_BINDING_2D_MULTISAMPLE:
1840 return _mesa_is_desktop_gl(ctx) && ctx->Extensions.ARB_texture_multisample
1841 ? TEXTURE_2D_MULTISAMPLE_INDEX : -1;
1842 case GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY:
1843 return _mesa_is_desktop_gl(ctx) && ctx->Extensions.ARB_texture_multisample
1844 ? TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX : -1;
1845 default:
1846 return -1;
1847 }
1848 }
1849
1850 static enum value_type
1851 find_value_indexed(const char *func, GLenum pname, GLuint index, union value *v)
1852 {
1853 GET_CURRENT_CONTEXT(ctx);
1854
1855 switch (pname) {
1856
1857 case GL_BLEND:
1858 if (index >= ctx->Const.MaxDrawBuffers)
1859 goto invalid_value;
1860 if (!ctx->Extensions.EXT_draw_buffers2)
1861 goto invalid_enum;
1862 v->value_int = (ctx->Color.BlendEnabled >> index) & 1;
1863 return TYPE_INT;
1864
1865 case GL_BLEND_SRC:
1866 /* fall-through */
1867 case GL_BLEND_SRC_RGB:
1868 if (index >= ctx->Const.MaxDrawBuffers)
1869 goto invalid_value;
1870 if (!ctx->Extensions.ARB_draw_buffers_blend)
1871 goto invalid_enum;
1872 v->value_int = ctx->Color.Blend[index].SrcRGB;
1873 return TYPE_INT;
1874 case GL_BLEND_SRC_ALPHA:
1875 if (index >= ctx->Const.MaxDrawBuffers)
1876 goto invalid_value;
1877 if (!ctx->Extensions.ARB_draw_buffers_blend)
1878 goto invalid_enum;
1879 v->value_int = ctx->Color.Blend[index].SrcA;
1880 return TYPE_INT;
1881 case GL_BLEND_DST:
1882 /* fall-through */
1883 case GL_BLEND_DST_RGB:
1884 if (index >= ctx->Const.MaxDrawBuffers)
1885 goto invalid_value;
1886 if (!ctx->Extensions.ARB_draw_buffers_blend)
1887 goto invalid_enum;
1888 v->value_int = ctx->Color.Blend[index].DstRGB;
1889 return TYPE_INT;
1890 case GL_BLEND_DST_ALPHA:
1891 if (index >= ctx->Const.MaxDrawBuffers)
1892 goto invalid_value;
1893 if (!ctx->Extensions.ARB_draw_buffers_blend)
1894 goto invalid_enum;
1895 v->value_int = ctx->Color.Blend[index].DstA;
1896 return TYPE_INT;
1897 case GL_BLEND_EQUATION_RGB:
1898 if (index >= ctx->Const.MaxDrawBuffers)
1899 goto invalid_value;
1900 if (!ctx->Extensions.ARB_draw_buffers_blend)
1901 goto invalid_enum;
1902 v->value_int = ctx->Color.Blend[index].EquationRGB;
1903 return TYPE_INT;
1904 case GL_BLEND_EQUATION_ALPHA:
1905 if (index >= ctx->Const.MaxDrawBuffers)
1906 goto invalid_value;
1907 if (!ctx->Extensions.ARB_draw_buffers_blend)
1908 goto invalid_enum;
1909 v->value_int = ctx->Color.Blend[index].EquationA;
1910 return TYPE_INT;
1911
1912 case GL_COLOR_WRITEMASK:
1913 if (index >= ctx->Const.MaxDrawBuffers)
1914 goto invalid_value;
1915 if (!ctx->Extensions.EXT_draw_buffers2)
1916 goto invalid_enum;
1917 v->value_int_4[0] = ctx->Color.ColorMask[index][RCOMP] ? 1 : 0;
1918 v->value_int_4[1] = ctx->Color.ColorMask[index][GCOMP] ? 1 : 0;
1919 v->value_int_4[2] = ctx->Color.ColorMask[index][BCOMP] ? 1 : 0;
1920 v->value_int_4[3] = ctx->Color.ColorMask[index][ACOMP] ? 1 : 0;
1921 return TYPE_INT_4;
1922
1923 case GL_SCISSOR_BOX:
1924 if (index >= ctx->Const.MaxViewports)
1925 goto invalid_value;
1926 v->value_int_4[0] = ctx->Scissor.ScissorArray[index].X;
1927 v->value_int_4[1] = ctx->Scissor.ScissorArray[index].Y;
1928 v->value_int_4[2] = ctx->Scissor.ScissorArray[index].Width;
1929 v->value_int_4[3] = ctx->Scissor.ScissorArray[index].Height;
1930 return TYPE_INT_4;
1931
1932 case GL_VIEWPORT:
1933 if (index >= ctx->Const.MaxViewports)
1934 goto invalid_value;
1935 v->value_float_4[0] = ctx->ViewportArray[index].X;
1936 v->value_float_4[1] = ctx->ViewportArray[index].Y;
1937 v->value_float_4[2] = ctx->ViewportArray[index].Width;
1938 v->value_float_4[3] = ctx->ViewportArray[index].Height;
1939 return TYPE_FLOAT_4;
1940
1941 case GL_DEPTH_RANGE:
1942 if (index >= ctx->Const.MaxViewports)
1943 goto invalid_value;
1944 v->value_double_2[0] = ctx->ViewportArray[index].Near;
1945 v->value_double_2[1] = ctx->ViewportArray[index].Far;
1946 return TYPE_DOUBLEN_2;
1947
1948 case GL_TRANSFORM_FEEDBACK_BUFFER_START:
1949 if (index >= ctx->Const.MaxTransformFeedbackBuffers)
1950 goto invalid_value;
1951 if (!ctx->Extensions.EXT_transform_feedback)
1952 goto invalid_enum;
1953 v->value_int64 = ctx->TransformFeedback.CurrentObject->Offset[index];
1954 return TYPE_INT64;
1955
1956 case GL_TRANSFORM_FEEDBACK_BUFFER_SIZE:
1957 if (index >= ctx->Const.MaxTransformFeedbackBuffers)
1958 goto invalid_value;
1959 if (!ctx->Extensions.EXT_transform_feedback)
1960 goto invalid_enum;
1961 v->value_int64
1962 = ctx->TransformFeedback.CurrentObject->RequestedSize[index];
1963 return TYPE_INT64;
1964
1965 case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING:
1966 if (index >= ctx->Const.MaxTransformFeedbackBuffers)
1967 goto invalid_value;
1968 if (!ctx->Extensions.EXT_transform_feedback)
1969 goto invalid_enum;
1970 v->value_int = ctx->TransformFeedback.CurrentObject->BufferNames[index];
1971 return TYPE_INT;
1972
1973 case GL_UNIFORM_BUFFER_BINDING:
1974 if (index >= ctx->Const.MaxUniformBufferBindings)
1975 goto invalid_value;
1976 if (!ctx->Extensions.ARB_uniform_buffer_object)
1977 goto invalid_enum;
1978 v->value_int = ctx->UniformBufferBindings[index].BufferObject->Name;
1979 return TYPE_INT;
1980
1981 case GL_UNIFORM_BUFFER_START:
1982 if (index >= ctx->Const.MaxUniformBufferBindings)
1983 goto invalid_value;
1984 if (!ctx->Extensions.ARB_uniform_buffer_object)
1985 goto invalid_enum;
1986 v->value_int = ctx->UniformBufferBindings[index].Offset < 0 ? 0 :
1987 ctx->UniformBufferBindings[index].Offset;
1988 return TYPE_INT;
1989
1990 case GL_UNIFORM_BUFFER_SIZE:
1991 if (index >= ctx->Const.MaxUniformBufferBindings)
1992 goto invalid_value;
1993 if (!ctx->Extensions.ARB_uniform_buffer_object)
1994 goto invalid_enum;
1995 v->value_int = ctx->UniformBufferBindings[index].Size < 0 ? 0 :
1996 ctx->UniformBufferBindings[index].Size;
1997 return TYPE_INT;
1998
1999 /* ARB_shader_storage_buffer_object */
2000 case GL_SHADER_STORAGE_BUFFER_BINDING:
2001 if (!ctx->Extensions.ARB_shader_storage_buffer_object)
2002 goto invalid_enum;
2003 if (index >= ctx->Const.MaxShaderStorageBufferBindings)
2004 goto invalid_value;
2005 v->value_int = ctx->ShaderStorageBufferBindings[index].BufferObject->Name;
2006 return TYPE_INT;
2007
2008 case GL_SHADER_STORAGE_BUFFER_START:
2009 if (!ctx->Extensions.ARB_shader_storage_buffer_object)
2010 goto invalid_enum;
2011 if (index >= ctx->Const.MaxShaderStorageBufferBindings)
2012 goto invalid_value;
2013 v->value_int = ctx->ShaderStorageBufferBindings[index].Offset < 0 ? 0 :
2014 ctx->ShaderStorageBufferBindings[index].Offset;
2015 return TYPE_INT;
2016
2017 case GL_SHADER_STORAGE_BUFFER_SIZE:
2018 if (!ctx->Extensions.ARB_shader_storage_buffer_object)
2019 goto invalid_enum;
2020 if (index >= ctx->Const.MaxShaderStorageBufferBindings)
2021 goto invalid_value;
2022 v->value_int = ctx->ShaderStorageBufferBindings[index].Size < 0 ? 0 :
2023 ctx->ShaderStorageBufferBindings[index].Size;
2024 return TYPE_INT;
2025
2026 /* ARB_texture_multisample / GL3.2 */
2027 case GL_SAMPLE_MASK_VALUE:
2028 if (index != 0)
2029 goto invalid_value;
2030 if (!ctx->Extensions.ARB_texture_multisample)
2031 goto invalid_enum;
2032 v->value_int = ctx->Multisample.SampleMaskValue;
2033 return TYPE_INT;
2034
2035 case GL_ATOMIC_COUNTER_BUFFER_BINDING:
2036 if (!ctx->Extensions.ARB_shader_atomic_counters)
2037 goto invalid_enum;
2038 if (index >= ctx->Const.MaxAtomicBufferBindings)
2039 goto invalid_value;
2040 v->value_int = ctx->AtomicBufferBindings[index].BufferObject->Name;
2041 return TYPE_INT;
2042
2043 case GL_ATOMIC_COUNTER_BUFFER_START:
2044 if (!ctx->Extensions.ARB_shader_atomic_counters)
2045 goto invalid_enum;
2046 if (index >= ctx->Const.MaxAtomicBufferBindings)
2047 goto invalid_value;
2048 v->value_int64 = ctx->AtomicBufferBindings[index].Offset;
2049 return TYPE_INT64;
2050
2051 case GL_ATOMIC_COUNTER_BUFFER_SIZE:
2052 if (!ctx->Extensions.ARB_shader_atomic_counters)
2053 goto invalid_enum;
2054 if (index >= ctx->Const.MaxAtomicBufferBindings)
2055 goto invalid_value;
2056 v->value_int64 = ctx->AtomicBufferBindings[index].Size;
2057 return TYPE_INT64;
2058
2059 case GL_VERTEX_BINDING_DIVISOR:
2060 if ((!_mesa_is_desktop_gl(ctx) || !ctx->Extensions.ARB_instanced_arrays) &&
2061 !_mesa_is_gles31(ctx))
2062 goto invalid_enum;
2063 if (index >= ctx->Const.Program[MESA_SHADER_VERTEX].MaxAttribs)
2064 goto invalid_value;
2065 v->value_int = ctx->Array.VAO->VertexBinding[VERT_ATTRIB_GENERIC(index)].InstanceDivisor;
2066 return TYPE_INT;
2067
2068 case GL_VERTEX_BINDING_OFFSET:
2069 if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles31(ctx))
2070 goto invalid_enum;
2071 if (index >= ctx->Const.Program[MESA_SHADER_VERTEX].MaxAttribs)
2072 goto invalid_value;
2073 v->value_int = ctx->Array.VAO->VertexBinding[VERT_ATTRIB_GENERIC(index)].Offset;
2074 return TYPE_INT;
2075
2076 case GL_VERTEX_BINDING_STRIDE:
2077 if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles31(ctx))
2078 goto invalid_enum;
2079 if (index >= ctx->Const.Program[MESA_SHADER_VERTEX].MaxAttribs)
2080 goto invalid_value;
2081 v->value_int = ctx->Array.VAO->VertexBinding[VERT_ATTRIB_GENERIC(index)].Stride;
2082 return TYPE_INT;
2083
2084 case GL_VERTEX_BINDING_BUFFER:
2085 if (ctx->API == API_OPENGLES2 && ctx->Version < 31)
2086 goto invalid_enum;
2087 if (index >= ctx->Const.Program[MESA_SHADER_VERTEX].MaxAttribs)
2088 goto invalid_value;
2089 v->value_int = ctx->Array.VAO->VertexBinding[VERT_ATTRIB_GENERIC(index)].BufferObj->Name;
2090 return TYPE_INT;
2091
2092 /* ARB_shader_image_load_store */
2093 case GL_IMAGE_BINDING_NAME: {
2094 struct gl_texture_object *t;
2095
2096 if (!ctx->Extensions.ARB_shader_image_load_store)
2097 goto invalid_enum;
2098 if (index >= ctx->Const.MaxImageUnits)
2099 goto invalid_value;
2100
2101 t = ctx->ImageUnits[index].TexObj;
2102 v->value_int = (t ? t->Name : 0);
2103 return TYPE_INT;
2104 }
2105
2106 case GL_IMAGE_BINDING_LEVEL:
2107 if (!ctx->Extensions.ARB_shader_image_load_store)
2108 goto invalid_enum;
2109 if (index >= ctx->Const.MaxImageUnits)
2110 goto invalid_value;
2111
2112 v->value_int = ctx->ImageUnits[index].Level;
2113 return TYPE_INT;
2114
2115 case GL_IMAGE_BINDING_LAYERED:
2116 if (!ctx->Extensions.ARB_shader_image_load_store)
2117 goto invalid_enum;
2118 if (index >= ctx->Const.MaxImageUnits)
2119 goto invalid_value;
2120
2121 v->value_int = ctx->ImageUnits[index].Layered;
2122 return TYPE_INT;
2123
2124 case GL_IMAGE_BINDING_LAYER:
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].Layer;
2131 return TYPE_INT;
2132
2133 case GL_IMAGE_BINDING_ACCESS:
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].Access;
2140 return TYPE_INT;
2141
2142 case GL_IMAGE_BINDING_FORMAT:
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].Format;
2149 return TYPE_INT;
2150
2151 /* ARB_direct_state_access */
2152 case GL_TEXTURE_BINDING_1D:
2153 case GL_TEXTURE_BINDING_1D_ARRAY:
2154 case GL_TEXTURE_BINDING_2D:
2155 case GL_TEXTURE_BINDING_2D_ARRAY:
2156 case GL_TEXTURE_BINDING_2D_MULTISAMPLE:
2157 case GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY:
2158 case GL_TEXTURE_BINDING_3D:
2159 case GL_TEXTURE_BINDING_BUFFER:
2160 case GL_TEXTURE_BINDING_CUBE_MAP:
2161 case GL_TEXTURE_BINDING_CUBE_MAP_ARRAY:
2162 case GL_TEXTURE_BINDING_RECTANGLE: {
2163 int target;
2164
2165 if (ctx->API != API_OPENGL_CORE)
2166 goto invalid_enum;
2167 target = tex_binding_to_index(ctx, pname);
2168 if (target < 0)
2169 goto invalid_enum;
2170 if (index >= _mesa_max_tex_unit(ctx))
2171 goto invalid_value;
2172
2173 v->value_int = ctx->Texture.Unit[index].CurrentTex[target]->Name;
2174 return TYPE_INT;
2175 }
2176
2177 case GL_SAMPLER_BINDING: {
2178 struct gl_sampler_object *samp;
2179
2180 if (ctx->API != API_OPENGL_CORE)
2181 goto invalid_enum;
2182 if (index >= _mesa_max_tex_unit(ctx))
2183 goto invalid_value;
2184
2185 samp = ctx->Texture.Unit[index].Sampler;
2186 v->value_int = samp ? samp->Name : 0;
2187 return TYPE_INT;
2188 }
2189
2190 case GL_MAX_COMPUTE_WORK_GROUP_COUNT:
2191 if (!_mesa_has_compute_shaders(ctx))
2192 goto invalid_enum;
2193 if (index >= 3)
2194 goto invalid_value;
2195 v->value_int = ctx->Const.MaxComputeWorkGroupCount[index];
2196 return TYPE_INT;
2197
2198 case GL_MAX_COMPUTE_WORK_GROUP_SIZE:
2199 if (!_mesa_has_compute_shaders(ctx))
2200 goto invalid_enum;
2201 if (index >= 3)
2202 goto invalid_value;
2203 v->value_int = ctx->Const.MaxComputeWorkGroupSize[index];
2204 return TYPE_INT;
2205 }
2206
2207 invalid_enum:
2208 _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func,
2209 _mesa_enum_to_string(pname));
2210 return TYPE_INVALID;
2211 invalid_value:
2212 _mesa_error(ctx, GL_INVALID_VALUE, "%s(pname=%s)", func,
2213 _mesa_enum_to_string(pname));
2214 return TYPE_INVALID;
2215 }
2216
2217 void GLAPIENTRY
2218 _mesa_GetBooleani_v( GLenum pname, GLuint index, GLboolean *params )
2219 {
2220 union value v;
2221 enum value_type type =
2222 find_value_indexed("glGetBooleani_v", pname, index, &v);
2223
2224 switch (type) {
2225 case TYPE_INT:
2226 params[0] = INT_TO_BOOLEAN(v.value_int);
2227 break;
2228 case TYPE_INT_4:
2229 params[0] = INT_TO_BOOLEAN(v.value_int_4[0]);
2230 params[1] = INT_TO_BOOLEAN(v.value_int_4[1]);
2231 params[2] = INT_TO_BOOLEAN(v.value_int_4[2]);
2232 params[3] = INT_TO_BOOLEAN(v.value_int_4[3]);
2233 break;
2234 case TYPE_INT64:
2235 params[0] = INT64_TO_BOOLEAN(v.value_int64);
2236 break;
2237 default:
2238 ; /* nothing - GL error was recorded */
2239 }
2240 }
2241
2242 void GLAPIENTRY
2243 _mesa_GetIntegeri_v( GLenum pname, GLuint index, GLint *params )
2244 {
2245 union value v;
2246 enum value_type type =
2247 find_value_indexed("glGetIntegeri_v", pname, index, &v);
2248
2249 switch (type) {
2250 case TYPE_FLOAT_4:
2251 case TYPE_FLOATN_4:
2252 params[3] = IROUND(v.value_float_4[3]);
2253 case TYPE_FLOAT_3:
2254 case TYPE_FLOATN_3:
2255 params[2] = IROUND(v.value_float_4[2]);
2256 case TYPE_FLOAT_2:
2257 case TYPE_FLOATN_2:
2258 params[1] = IROUND(v.value_float_4[1]);
2259 case TYPE_FLOAT:
2260 case TYPE_FLOATN:
2261 params[0] = IROUND(v.value_float_4[0]);
2262 break;
2263
2264 case TYPE_DOUBLEN_2:
2265 params[1] = IROUND(v.value_double_2[1]);
2266 case TYPE_DOUBLEN:
2267 params[0] = IROUND(v.value_double_2[0]);
2268 break;
2269
2270 case TYPE_INT:
2271 params[0] = v.value_int;
2272 break;
2273 case TYPE_INT_4:
2274 params[0] = v.value_int_4[0];
2275 params[1] = v.value_int_4[1];
2276 params[2] = v.value_int_4[2];
2277 params[3] = v.value_int_4[3];
2278 break;
2279 case TYPE_INT64:
2280 params[0] = INT64_TO_INT(v.value_int64);
2281 break;
2282 default:
2283 ; /* nothing - GL error was recorded */
2284 }
2285 }
2286
2287 void GLAPIENTRY
2288 _mesa_GetInteger64i_v( GLenum pname, GLuint index, GLint64 *params )
2289 {
2290 union value v;
2291 enum value_type type =
2292 find_value_indexed("glGetInteger64i_v", pname, index, &v);
2293
2294 switch (type) {
2295 case TYPE_INT:
2296 params[0] = v.value_int;
2297 break;
2298 case TYPE_INT_4:
2299 params[0] = v.value_int_4[0];
2300 params[1] = v.value_int_4[1];
2301 params[2] = v.value_int_4[2];
2302 params[3] = v.value_int_4[3];
2303 break;
2304 case TYPE_INT64:
2305 params[0] = v.value_int64;
2306 break;
2307 default:
2308 ; /* nothing - GL error was recorded */
2309 }
2310 }
2311
2312 void GLAPIENTRY
2313 _mesa_GetFloati_v(GLenum pname, GLuint index, GLfloat *params)
2314 {
2315 int i;
2316 GLmatrix *m;
2317 union value v;
2318 enum value_type type =
2319 find_value_indexed("glGetFloati_v", pname, index, &v);
2320
2321 switch (type) {
2322 case TYPE_FLOAT_4:
2323 case TYPE_FLOATN_4:
2324 params[3] = v.value_float_4[3];
2325 case TYPE_FLOAT_3:
2326 case TYPE_FLOATN_3:
2327 params[2] = v.value_float_4[2];
2328 case TYPE_FLOAT_2:
2329 case TYPE_FLOATN_2:
2330 params[1] = v.value_float_4[1];
2331 case TYPE_FLOAT:
2332 case TYPE_FLOATN:
2333 params[0] = v.value_float_4[0];
2334 break;
2335
2336 case TYPE_DOUBLEN_2:
2337 params[1] = (GLfloat) v.value_double_2[1];
2338 case TYPE_DOUBLEN:
2339 params[0] = (GLfloat) v.value_double_2[0];
2340 break;
2341
2342 case TYPE_INT_4:
2343 params[3] = (GLfloat) v.value_int_4[3];
2344 case TYPE_INT_3:
2345 params[2] = (GLfloat) v.value_int_4[2];
2346 case TYPE_INT_2:
2347 case TYPE_ENUM_2:
2348 params[1] = (GLfloat) v.value_int_4[1];
2349 case TYPE_INT:
2350 case TYPE_ENUM:
2351 params[0] = (GLfloat) v.value_int_4[0];
2352 break;
2353
2354 case TYPE_INT_N:
2355 for (i = 0; i < v.value_int_n.n; i++)
2356 params[i] = INT_TO_FLOAT(v.value_int_n.ints[i]);
2357 break;
2358
2359 case TYPE_INT64:
2360 params[0] = (GLfloat) v.value_int64;
2361 break;
2362
2363 case TYPE_BOOLEAN:
2364 params[0] = BOOLEAN_TO_FLOAT(v.value_bool);
2365 break;
2366
2367 case TYPE_MATRIX:
2368 m = *(GLmatrix **) &v;
2369 for (i = 0; i < 16; i++)
2370 params[i] = m->m[i];
2371 break;
2372
2373 case TYPE_MATRIX_T:
2374 m = *(GLmatrix **) &v;
2375 for (i = 0; i < 16; i++)
2376 params[i] = m->m[transpose[i]];
2377 break;
2378
2379 default:
2380 ;
2381 }
2382 }
2383
2384 void GLAPIENTRY
2385 _mesa_GetDoublei_v(GLenum pname, GLuint index, GLdouble *params)
2386 {
2387 int i;
2388 GLmatrix *m;
2389 union value v;
2390 enum value_type type =
2391 find_value_indexed("glGetDoublei_v", pname, index, &v);
2392
2393 switch (type) {
2394 case TYPE_FLOAT_4:
2395 case TYPE_FLOATN_4:
2396 params[3] = (GLdouble) v.value_float_4[3];
2397 case TYPE_FLOAT_3:
2398 case TYPE_FLOATN_3:
2399 params[2] = (GLdouble) v.value_float_4[2];
2400 case TYPE_FLOAT_2:
2401 case TYPE_FLOATN_2:
2402 params[1] = (GLdouble) v.value_float_4[1];
2403 case TYPE_FLOAT:
2404 case TYPE_FLOATN:
2405 params[0] = (GLdouble) v.value_float_4[0];
2406 break;
2407
2408 case TYPE_DOUBLEN_2:
2409 params[1] = v.value_double_2[1];
2410 case TYPE_DOUBLEN:
2411 params[0] = v.value_double_2[0];
2412 break;
2413
2414 case TYPE_INT_4:
2415 params[3] = (GLdouble) v.value_int_4[3];
2416 case TYPE_INT_3:
2417 params[2] = (GLdouble) v.value_int_4[2];
2418 case TYPE_INT_2:
2419 case TYPE_ENUM_2:
2420 params[1] = (GLdouble) v.value_int_4[1];
2421 case TYPE_INT:
2422 case TYPE_ENUM:
2423 params[0] = (GLdouble) v.value_int_4[0];
2424 break;
2425
2426 case TYPE_INT_N:
2427 for (i = 0; i < v.value_int_n.n; i++)
2428 params[i] = (GLdouble) INT_TO_FLOAT(v.value_int_n.ints[i]);
2429 break;
2430
2431 case TYPE_INT64:
2432 params[0] = (GLdouble) v.value_int64;
2433 break;
2434
2435 case TYPE_BOOLEAN:
2436 params[0] = (GLdouble) BOOLEAN_TO_FLOAT(v.value_bool);
2437 break;
2438
2439 case TYPE_MATRIX:
2440 m = *(GLmatrix **) &v;
2441 for (i = 0; i < 16; i++)
2442 params[i] = (GLdouble) m->m[i];
2443 break;
2444
2445 case TYPE_MATRIX_T:
2446 m = *(GLmatrix **) &v;
2447 for (i = 0; i < 16; i++)
2448 params[i] = (GLdouble) m->m[transpose[i]];
2449 break;
2450
2451 default:
2452 ;
2453 }
2454 }
2455
2456 void GLAPIENTRY
2457 _mesa_GetFixedv(GLenum pname, GLfixed *params)
2458 {
2459 const struct value_desc *d;
2460 union value v;
2461 GLmatrix *m;
2462 int shift, i;
2463 void *p;
2464
2465 d = find_value("glGetDoublev", pname, &p, &v);
2466 switch (d->type) {
2467 case TYPE_INVALID:
2468 break;
2469 case TYPE_CONST:
2470 params[0] = INT_TO_FIXED(d->offset);
2471 break;
2472
2473 case TYPE_FLOAT_4:
2474 case TYPE_FLOATN_4:
2475 params[3] = FLOAT_TO_FIXED(((GLfloat *) p)[3]);
2476 case TYPE_FLOAT_3:
2477 case TYPE_FLOATN_3:
2478 params[2] = FLOAT_TO_FIXED(((GLfloat *) p)[2]);
2479 case TYPE_FLOAT_2:
2480 case TYPE_FLOATN_2:
2481 params[1] = FLOAT_TO_FIXED(((GLfloat *) p)[1]);
2482 case TYPE_FLOAT:
2483 case TYPE_FLOATN:
2484 params[0] = FLOAT_TO_FIXED(((GLfloat *) p)[0]);
2485 break;
2486
2487 case TYPE_DOUBLEN_2:
2488 params[1] = FLOAT_TO_FIXED(((GLdouble *) p)[1]);
2489 case TYPE_DOUBLEN:
2490 params[0] = FLOAT_TO_FIXED(((GLdouble *) p)[0]);
2491 break;
2492
2493 case TYPE_INT_4:
2494 params[3] = INT_TO_FIXED(((GLint *) p)[3]);
2495 case TYPE_INT_3:
2496 params[2] = INT_TO_FIXED(((GLint *) p)[2]);
2497 case TYPE_INT_2:
2498 case TYPE_ENUM_2:
2499 params[1] = INT_TO_FIXED(((GLint *) p)[1]);
2500 case TYPE_INT:
2501 case TYPE_ENUM:
2502 params[0] = INT_TO_FIXED(((GLint *) p)[0]);
2503 break;
2504
2505 case TYPE_INT_N:
2506 for (i = 0; i < v.value_int_n.n; i++)
2507 params[i] = INT_TO_FIXED(v.value_int_n.ints[i]);
2508 break;
2509
2510 case TYPE_INT64:
2511 params[0] = ((GLint64 *) p)[0];
2512 break;
2513
2514 case TYPE_BOOLEAN:
2515 params[0] = BOOLEAN_TO_FIXED(((GLboolean*) p)[0]);
2516 break;
2517
2518 case TYPE_MATRIX:
2519 m = *(GLmatrix **) p;
2520 for (i = 0; i < 16; i++)
2521 params[i] = FLOAT_TO_FIXED(m->m[i]);
2522 break;
2523
2524 case TYPE_MATRIX_T:
2525 m = *(GLmatrix **) p;
2526 for (i = 0; i < 16; i++)
2527 params[i] = FLOAT_TO_FIXED(m->m[transpose[i]]);
2528 break;
2529
2530 case TYPE_BIT_0:
2531 case TYPE_BIT_1:
2532 case TYPE_BIT_2:
2533 case TYPE_BIT_3:
2534 case TYPE_BIT_4:
2535 case TYPE_BIT_5:
2536 case TYPE_BIT_6:
2537 case TYPE_BIT_7:
2538 shift = d->type - TYPE_BIT_0;
2539 params[0] = BOOLEAN_TO_FIXED((*(GLbitfield *) p >> shift) & 1);
2540 break;
2541 }
2542 }