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mesa: add missing queries for ARB_direct_state_access
[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_GS4,
151 EXTRA_EXT_ATOMICS_GS4,
152 EXTRA_EXT_SHADER_IMAGE_GS4,
153 EXTRA_EXT_ATOMICS_TESS,
154 EXTRA_EXT_SHADER_IMAGE_TESS,
155 };
156
157 #define NO_EXTRA NULL
158 #define NO_OFFSET 0
159
160 struct value_desc {
161 GLenum pname;
162 GLubyte location; /**< enum value_location */
163 GLubyte type; /**< enum value_type */
164 int offset;
165 const int *extra;
166 };
167
168 union value {
169 GLfloat value_float;
170 GLfloat value_float_4[4];
171 GLdouble value_double_2[2];
172 GLmatrix *value_matrix;
173 GLint value_int;
174 GLint value_int_4[4];
175 GLint64 value_int64;
176 GLenum value_enum;
177
178 /* Sigh, see GL_COMPRESSED_TEXTURE_FORMATS_ARB handling */
179 struct {
180 GLint n, ints[100];
181 } value_int_n;
182 GLboolean value_bool;
183 };
184
185 #define BUFFER_FIELD(field, type) \
186 LOC_BUFFER, type, offsetof(struct gl_framebuffer, field)
187 #define CONTEXT_FIELD(field, type) \
188 LOC_CONTEXT, type, offsetof(struct gl_context, field)
189 #define ARRAY_FIELD(field, type) \
190 LOC_ARRAY, type, offsetof(struct gl_vertex_array_object, field)
191 #undef CONST /* already defined through windows.h */
192 #define CONST(value) \
193 LOC_CONTEXT, TYPE_CONST, value
194
195 #define BUFFER_INT(field) BUFFER_FIELD(field, TYPE_INT)
196 #define BUFFER_ENUM(field) BUFFER_FIELD(field, TYPE_ENUM)
197 #define BUFFER_BOOL(field) BUFFER_FIELD(field, TYPE_BOOLEAN)
198
199 #define CONTEXT_INT(field) CONTEXT_FIELD(field, TYPE_INT)
200 #define CONTEXT_INT2(field) CONTEXT_FIELD(field, TYPE_INT_2)
201 #define CONTEXT_INT64(field) CONTEXT_FIELD(field, TYPE_INT64)
202 #define CONTEXT_ENUM(field) CONTEXT_FIELD(field, TYPE_ENUM)
203 #define CONTEXT_ENUM2(field) CONTEXT_FIELD(field, TYPE_ENUM_2)
204 #define CONTEXT_BOOL(field) CONTEXT_FIELD(field, TYPE_BOOLEAN)
205 #define CONTEXT_BIT0(field) CONTEXT_FIELD(field, TYPE_BIT_0)
206 #define CONTEXT_BIT1(field) CONTEXT_FIELD(field, TYPE_BIT_1)
207 #define CONTEXT_BIT2(field) CONTEXT_FIELD(field, TYPE_BIT_2)
208 #define CONTEXT_BIT3(field) CONTEXT_FIELD(field, TYPE_BIT_3)
209 #define CONTEXT_BIT4(field) CONTEXT_FIELD(field, TYPE_BIT_4)
210 #define CONTEXT_BIT5(field) CONTEXT_FIELD(field, TYPE_BIT_5)
211 #define CONTEXT_BIT6(field) CONTEXT_FIELD(field, TYPE_BIT_6)
212 #define CONTEXT_BIT7(field) CONTEXT_FIELD(field, TYPE_BIT_7)
213 #define CONTEXT_FLOAT(field) CONTEXT_FIELD(field, TYPE_FLOAT)
214 #define CONTEXT_FLOAT2(field) CONTEXT_FIELD(field, TYPE_FLOAT_2)
215 #define CONTEXT_FLOAT3(field) CONTEXT_FIELD(field, TYPE_FLOAT_3)
216 #define CONTEXT_FLOAT4(field) CONTEXT_FIELD(field, TYPE_FLOAT_4)
217 #define CONTEXT_MATRIX(field) CONTEXT_FIELD(field, TYPE_MATRIX)
218 #define CONTEXT_MATRIX_T(field) CONTEXT_FIELD(field, TYPE_MATRIX_T)
219
220 #define ARRAY_INT(field) ARRAY_FIELD(field, TYPE_INT)
221 #define ARRAY_ENUM(field) ARRAY_FIELD(field, TYPE_ENUM)
222 #define ARRAY_BOOL(field) ARRAY_FIELD(field, TYPE_BOOLEAN)
223
224 #define EXT(f) \
225 offsetof(struct gl_extensions, f)
226
227 #define EXTRA_EXT(e) \
228 static const int extra_##e[] = { \
229 EXT(e), EXTRA_END \
230 }
231
232 #define EXTRA_EXT2(e1, e2) \
233 static const int extra_##e1##_##e2[] = { \
234 EXT(e1), EXT(e2), EXTRA_END \
235 }
236
237 /* The 'extra' mechanism is a way to specify extra checks (such as
238 * extensions or specific gl versions) or actions (flush current, new
239 * buffers) that we need to do before looking up an enum. We need to
240 * declare them all up front so we can refer to them in the value_desc
241 * structs below.
242 *
243 * Each EXTRA_ will be executed. For EXTRA_* enums of extensions and API
244 * versions, listing multiple ones in an array means an error will be thrown
245 * only if none of them are available. If you need to check for "AND"
246 * behavior, you would need to make a custom EXTRA_ enum.
247 */
248
249 static const int extra_new_buffers[] = {
250 EXTRA_NEW_BUFFERS,
251 EXTRA_END
252 };
253
254 static const int extra_new_frag_clamp[] = {
255 EXTRA_NEW_FRAG_CLAMP,
256 EXTRA_END
257 };
258
259 static const int extra_valid_draw_buffer[] = {
260 EXTRA_VALID_DRAW_BUFFER,
261 EXTRA_END
262 };
263
264 static const int extra_valid_texture_unit[] = {
265 EXTRA_VALID_TEXTURE_UNIT,
266 EXTRA_END
267 };
268
269 static const int extra_valid_clip_distance[] = {
270 EXTRA_VALID_CLIP_DISTANCE,
271 EXTRA_END
272 };
273
274 static const int extra_flush_current_valid_texture_unit[] = {
275 EXTRA_FLUSH_CURRENT,
276 EXTRA_VALID_TEXTURE_UNIT,
277 EXTRA_END
278 };
279
280 static const int extra_flush_current[] = {
281 EXTRA_FLUSH_CURRENT,
282 EXTRA_END
283 };
284
285 static const int extra_EXT_texture_integer_and_new_buffers[] = {
286 EXT(EXT_texture_integer),
287 EXTRA_NEW_BUFFERS,
288 EXTRA_END
289 };
290
291 static const int extra_GLSL_130_es3[] = {
292 EXTRA_GLSL_130,
293 EXTRA_API_ES3,
294 EXTRA_END
295 };
296
297 static const int extra_texture_buffer_object[] = {
298 EXTRA_API_GL_CORE,
299 EXTRA_VERSION_31,
300 EXT(ARB_texture_buffer_object),
301 EXTRA_END
302 };
303
304 static const int extra_ARB_transform_feedback2_api_es3[] = {
305 EXT(ARB_transform_feedback2),
306 EXTRA_API_ES3,
307 EXTRA_END
308 };
309
310 static const int extra_ARB_uniform_buffer_object_and_geometry_shader[] = {
311 EXTRA_EXT_UBO_GS4,
312 EXTRA_END
313 };
314
315 static const int extra_ARB_ES2_compatibility_api_es2[] = {
316 EXT(ARB_ES2_compatibility),
317 EXTRA_API_ES2,
318 EXTRA_END
319 };
320
321 static const int extra_ARB_ES3_compatibility_api_es3[] = {
322 EXT(ARB_ES3_compatibility),
323 EXTRA_API_ES3,
324 EXTRA_END
325 };
326
327 static const int extra_EXT_framebuffer_sRGB_and_new_buffers[] = {
328 EXT(EXT_framebuffer_sRGB),
329 EXTRA_NEW_BUFFERS,
330 EXTRA_END
331 };
332
333 static const int extra_EXT_packed_float[] = {
334 EXT(EXT_packed_float),
335 EXTRA_NEW_BUFFERS,
336 EXTRA_END
337 };
338
339 static const int extra_EXT_texture_array_es3[] = {
340 EXT(EXT_texture_array),
341 EXTRA_API_ES3,
342 EXTRA_END
343 };
344
345 static const int extra_ARB_shader_atomic_counters_and_geometry_shader[] = {
346 EXTRA_EXT_ATOMICS_GS4,
347 EXTRA_END
348 };
349
350 static const int extra_ARB_shader_image_load_store_and_geometry_shader[] = {
351 EXTRA_EXT_SHADER_IMAGE_GS4,
352 EXTRA_END
353 };
354
355 static const int extra_ARB_shader_atomic_counters_and_tessellation[] = {
356 EXTRA_EXT_ATOMICS_TESS,
357 EXTRA_END
358 };
359
360 static const int extra_ARB_shader_image_load_store_and_tessellation[] = {
361 EXTRA_EXT_SHADER_IMAGE_TESS,
362 EXTRA_END
363 };
364
365 /* HACK: remove when ARB_compute_shader is actually supported */
366 static const int extra_ARB_compute_shader_es31[] = {
367 EXT(ARB_compute_shader),
368 EXTRA_API_ES31,
369 EXTRA_END
370 };
371
372 EXTRA_EXT(ARB_texture_cube_map);
373 EXTRA_EXT(EXT_texture_array);
374 EXTRA_EXT(NV_fog_distance);
375 EXTRA_EXT(EXT_texture_filter_anisotropic);
376 EXTRA_EXT(NV_point_sprite);
377 EXTRA_EXT(NV_texture_rectangle);
378 EXTRA_EXT(EXT_stencil_two_side);
379 EXTRA_EXT(EXT_depth_bounds_test);
380 EXTRA_EXT(ARB_depth_clamp);
381 EXTRA_EXT(ATI_fragment_shader);
382 EXTRA_EXT(EXT_provoking_vertex);
383 EXTRA_EXT(ARB_fragment_shader);
384 EXTRA_EXT(ARB_fragment_program);
385 EXTRA_EXT2(ARB_framebuffer_object, EXT_framebuffer_multisample);
386 EXTRA_EXT(ARB_seamless_cube_map);
387 EXTRA_EXT(ARB_sync);
388 EXTRA_EXT(ARB_vertex_shader);
389 EXTRA_EXT(EXT_transform_feedback);
390 EXTRA_EXT(ARB_transform_feedback3);
391 EXTRA_EXT(EXT_pixel_buffer_object);
392 EXTRA_EXT(ARB_vertex_program);
393 EXTRA_EXT2(NV_point_sprite, ARB_point_sprite);
394 EXTRA_EXT2(ARB_vertex_program, ARB_fragment_program);
395 EXTRA_EXT(ARB_geometry_shader4);
396 EXTRA_EXT(ARB_color_buffer_float);
397 EXTRA_EXT(EXT_framebuffer_sRGB);
398 EXTRA_EXT(OES_EGL_image_external);
399 EXTRA_EXT(ARB_blend_func_extended);
400 EXTRA_EXT(ARB_uniform_buffer_object);
401 EXTRA_EXT(ARB_timer_query);
402 EXTRA_EXT(ARB_texture_cube_map_array);
403 EXTRA_EXT(ARB_texture_buffer_range);
404 EXTRA_EXT(ARB_texture_multisample);
405 EXTRA_EXT(ARB_texture_gather);
406 EXTRA_EXT(ARB_shader_atomic_counters);
407 EXTRA_EXT(ARB_draw_indirect);
408 EXTRA_EXT(ARB_shader_image_load_store);
409 EXTRA_EXT(ARB_viewport_array);
410 EXTRA_EXT(ARB_compute_shader);
411 EXTRA_EXT(ARB_gpu_shader5);
412 EXTRA_EXT2(ARB_transform_feedback3, ARB_gpu_shader5);
413 EXTRA_EXT(INTEL_performance_query);
414 EXTRA_EXT(ARB_explicit_uniform_location);
415 EXTRA_EXT(ARB_clip_control);
416 EXTRA_EXT(EXT_polygon_offset_clamp);
417 EXTRA_EXT(ARB_framebuffer_no_attachments);
418 EXTRA_EXT(ARB_tessellation_shader);
419 EXTRA_EXT(ARB_shader_subroutine);
420
421 static const int
422 extra_ARB_color_buffer_float_or_glcore[] = {
423 EXT(ARB_color_buffer_float),
424 EXTRA_API_GL_CORE,
425 EXTRA_END
426 };
427
428 static const int
429 extra_NV_primitive_restart[] = {
430 EXT(NV_primitive_restart),
431 EXTRA_END
432 };
433
434 static const int extra_version_30[] = { EXTRA_VERSION_30, EXTRA_END };
435 static const int extra_version_31[] = { EXTRA_VERSION_31, EXTRA_END };
436 static const int extra_version_32[] = { EXTRA_VERSION_32, EXTRA_END };
437 static const int extra_version_40[] = { EXTRA_VERSION_40, EXTRA_END };
438
439 static const int extra_gl30_es3[] = {
440 EXTRA_VERSION_30,
441 EXTRA_API_ES3,
442 EXTRA_END,
443 };
444
445 static const int extra_gl32_es3[] = {
446 EXTRA_VERSION_32,
447 EXTRA_API_ES3,
448 EXTRA_END,
449 };
450
451 static const int extra_gl32_ARB_geometry_shader4[] = {
452 EXTRA_VERSION_32,
453 EXT(ARB_geometry_shader4),
454 EXTRA_END
455 };
456
457 static const int extra_gl40_ARB_sample_shading[] = {
458 EXTRA_VERSION_40,
459 EXT(ARB_sample_shading),
460 EXTRA_END
461 };
462
463 static const int
464 extra_ARB_vertex_program_api_es2[] = {
465 EXT(ARB_vertex_program),
466 EXTRA_API_ES2,
467 EXTRA_END
468 };
469
470 /* The ReadBuffer get token is valid under either full GL or under
471 * GLES2 if the NV_read_buffer extension is available. */
472 static const int
473 extra_NV_read_buffer_api_gl[] = {
474 EXTRA_API_ES2,
475 EXTRA_API_GL,
476 EXTRA_END
477 };
478
479 static const int extra_core_ARB_color_buffer_float_and_new_buffers[] = {
480 EXTRA_API_GL_CORE,
481 EXT(ARB_color_buffer_float),
482 EXTRA_NEW_BUFFERS,
483 EXTRA_END
484 };
485
486 /* This is the big table describing all the enums we accept in
487 * glGet*v(). The table is partitioned into six parts: enums
488 * understood by all GL APIs (OpenGL, GLES and GLES2), enums shared
489 * between OpenGL and GLES, enums exclusive to GLES, etc for the
490 * remaining combinations. To look up the enums valid in a given API
491 * we will use a hash table specific to that API. These tables are in
492 * turn generated at build time and included through get_hash.h.
493 */
494
495 #include "get_hash.h"
496
497 /* All we need now is a way to look up the value struct from the enum.
498 * The code generated by gcc for the old generated big switch
499 * statement is a big, balanced, open coded if/else tree, essentially
500 * an unrolled binary search. It would be natural to sort the new
501 * enum table and use bsearch(), but we will use a read-only hash
502 * table instead. bsearch() has a nice guaranteed worst case
503 * performance, but we're also guaranteed to hit that worst case
504 * (log2(n) iterations) for about half the enums. Instead, using an
505 * open addressing hash table, we can find the enum on the first try
506 * for 80% of the enums, 1 collision for 10% and never more than 5
507 * collisions for any enum (typical numbers). And the code is very
508 * simple, even though it feels a little magic. */
509
510 #ifdef GET_DEBUG
511 static void
512 print_table_stats(int api)
513 {
514 int i, j, collisions[11], count, hash, mask;
515 const struct value_desc *d;
516 const char *api_names[] = {
517 [API_OPENGL_COMPAT] = "GL",
518 [API_OPENGL_CORE] = "GL_CORE",
519 [API_OPENGLES] = "GLES",
520 [API_OPENGLES2] = "GLES2",
521 };
522 const char *api_name;
523
524 api_name = api < ARRAY_SIZE(api_names) ? api_names[api] : "N/A";
525 count = 0;
526 mask = ARRAY_SIZE(table(api)) - 1;
527 memset(collisions, 0, sizeof collisions);
528
529 for (i = 0; i < ARRAY_SIZE(table(api)); i++) {
530 if (!table(api)[i])
531 continue;
532 count++;
533 d = &values[table(api)[i]];
534 hash = (d->pname * prime_factor);
535 j = 0;
536 while (1) {
537 if (values[table(api)[hash & mask]].pname == d->pname)
538 break;
539 hash += prime_step;
540 j++;
541 }
542
543 if (j < 10)
544 collisions[j]++;
545 else
546 collisions[10]++;
547 }
548
549 printf("number of enums for %s: %d (total %ld)\n",
550 api_name, count, ARRAY_SIZE(values));
551 for (i = 0; i < ARRAY_SIZE(collisions) - 1; i++)
552 if (collisions[i] > 0)
553 printf(" %d enums with %d %scollisions\n",
554 collisions[i], i, i == 10 ? "or more " : "");
555 }
556 #endif
557
558 /**
559 * Initialize the enum hash for a given API
560 *
561 * This is called from one_time_init() to insert the enum values that
562 * are valid for the API in question into the enum hash table.
563 *
564 * \param the current context, for determining the API in question
565 */
566 void _mesa_init_get_hash(struct gl_context *ctx)
567 {
568 #ifdef GET_DEBUG
569 print_table_stats(ctx->API);
570 #else
571 (void) ctx;
572 #endif
573 }
574
575 /**
576 * Handle irregular enums
577 *
578 * Some values don't conform to the "well-known type at context
579 * pointer + offset" pattern, so we have this function to catch all
580 * the corner cases. Typically, it's a computed value or a one-off
581 * pointer to a custom struct or something.
582 *
583 * In this case we can't return a pointer to the value, so we'll have
584 * to use the temporary variable 'v' declared back in the calling
585 * glGet*v() function to store the result.
586 *
587 * \param ctx the current context
588 * \param d the struct value_desc that describes the enum
589 * \param v pointer to the tmp declared in the calling glGet*v() function
590 */
591 static void
592 find_custom_value(struct gl_context *ctx, const struct value_desc *d, union value *v)
593 {
594 struct gl_buffer_object **buffer_obj;
595 struct gl_vertex_attrib_array *array;
596 GLuint unit, *p;
597
598 switch (d->pname) {
599 case GL_MAJOR_VERSION:
600 v->value_int = ctx->Version / 10;
601 break;
602 case GL_MINOR_VERSION:
603 v->value_int = ctx->Version % 10;
604 break;
605
606 case GL_TEXTURE_1D:
607 case GL_TEXTURE_2D:
608 case GL_TEXTURE_3D:
609 case GL_TEXTURE_CUBE_MAP_ARB:
610 case GL_TEXTURE_RECTANGLE_NV:
611 case GL_TEXTURE_EXTERNAL_OES:
612 v->value_bool = _mesa_IsEnabled(d->pname);
613 break;
614
615 case GL_LINE_STIPPLE_PATTERN:
616 /* This is the only GLushort, special case it here by promoting
617 * to an int rather than introducing a new type. */
618 v->value_int = ctx->Line.StipplePattern;
619 break;
620
621 case GL_CURRENT_RASTER_TEXTURE_COORDS:
622 unit = ctx->Texture.CurrentUnit;
623 v->value_float_4[0] = ctx->Current.RasterTexCoords[unit][0];
624 v->value_float_4[1] = ctx->Current.RasterTexCoords[unit][1];
625 v->value_float_4[2] = ctx->Current.RasterTexCoords[unit][2];
626 v->value_float_4[3] = ctx->Current.RasterTexCoords[unit][3];
627 break;
628
629 case GL_CURRENT_TEXTURE_COORDS:
630 unit = ctx->Texture.CurrentUnit;
631 v->value_float_4[0] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][0];
632 v->value_float_4[1] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][1];
633 v->value_float_4[2] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][2];
634 v->value_float_4[3] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][3];
635 break;
636
637 case GL_COLOR_WRITEMASK:
638 v->value_int_4[0] = ctx->Color.ColorMask[0][RCOMP] ? 1 : 0;
639 v->value_int_4[1] = ctx->Color.ColorMask[0][GCOMP] ? 1 : 0;
640 v->value_int_4[2] = ctx->Color.ColorMask[0][BCOMP] ? 1 : 0;
641 v->value_int_4[3] = ctx->Color.ColorMask[0][ACOMP] ? 1 : 0;
642 break;
643
644 case GL_EDGE_FLAG:
645 v->value_bool = ctx->Current.Attrib[VERT_ATTRIB_EDGEFLAG][0] == 1.0F;
646 break;
647
648 case GL_READ_BUFFER:
649 v->value_enum = ctx->ReadBuffer->ColorReadBuffer;
650 break;
651
652 case GL_MAP2_GRID_DOMAIN:
653 v->value_float_4[0] = ctx->Eval.MapGrid2u1;
654 v->value_float_4[1] = ctx->Eval.MapGrid2u2;
655 v->value_float_4[2] = ctx->Eval.MapGrid2v1;
656 v->value_float_4[3] = ctx->Eval.MapGrid2v2;
657 break;
658
659 case GL_TEXTURE_STACK_DEPTH:
660 unit = ctx->Texture.CurrentUnit;
661 v->value_int = ctx->TextureMatrixStack[unit].Depth + 1;
662 break;
663 case GL_TEXTURE_MATRIX:
664 unit = ctx->Texture.CurrentUnit;
665 v->value_matrix = ctx->TextureMatrixStack[unit].Top;
666 break;
667
668 case GL_TEXTURE_COORD_ARRAY:
669 case GL_TEXTURE_COORD_ARRAY_SIZE:
670 case GL_TEXTURE_COORD_ARRAY_TYPE:
671 case GL_TEXTURE_COORD_ARRAY_STRIDE:
672 array = &ctx->Array.VAO->VertexAttrib[VERT_ATTRIB_TEX(ctx->Array.ActiveTexture)];
673 v->value_int = *(GLuint *) ((char *) array + d->offset);
674 break;
675
676 case GL_ACTIVE_TEXTURE_ARB:
677 v->value_int = GL_TEXTURE0_ARB + ctx->Texture.CurrentUnit;
678 break;
679 case GL_CLIENT_ACTIVE_TEXTURE_ARB:
680 v->value_int = GL_TEXTURE0_ARB + ctx->Array.ActiveTexture;
681 break;
682
683 case GL_MODELVIEW_STACK_DEPTH:
684 case GL_PROJECTION_STACK_DEPTH:
685 v->value_int = *(GLint *) ((char *) ctx + d->offset) + 1;
686 break;
687
688 case GL_MAX_TEXTURE_SIZE:
689 case GL_MAX_3D_TEXTURE_SIZE:
690 case GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB:
691 p = (GLuint *) ((char *) ctx + d->offset);
692 v->value_int = 1 << (*p - 1);
693 break;
694
695 case GL_SCISSOR_BOX:
696 v->value_int_4[0] = ctx->Scissor.ScissorArray[0].X;
697 v->value_int_4[1] = ctx->Scissor.ScissorArray[0].Y;
698 v->value_int_4[2] = ctx->Scissor.ScissorArray[0].Width;
699 v->value_int_4[3] = ctx->Scissor.ScissorArray[0].Height;
700 break;
701
702 case GL_SCISSOR_TEST:
703 v->value_bool = ctx->Scissor.EnableFlags & 1;
704 break;
705
706 case GL_LIST_INDEX:
707 v->value_int =
708 ctx->ListState.CurrentList ? ctx->ListState.CurrentList->Name : 0;
709 break;
710 case GL_LIST_MODE:
711 if (!ctx->CompileFlag)
712 v->value_enum = 0;
713 else if (ctx->ExecuteFlag)
714 v->value_enum = GL_COMPILE_AND_EXECUTE;
715 else
716 v->value_enum = GL_COMPILE;
717 break;
718
719 case GL_VIEWPORT:
720 v->value_float_4[0] = ctx->ViewportArray[0].X;
721 v->value_float_4[1] = ctx->ViewportArray[0].Y;
722 v->value_float_4[2] = ctx->ViewportArray[0].Width;
723 v->value_float_4[3] = ctx->ViewportArray[0].Height;
724 break;
725
726 case GL_DEPTH_RANGE:
727 v->value_double_2[0] = ctx->ViewportArray[0].Near;
728 v->value_double_2[1] = ctx->ViewportArray[0].Far;
729 break;
730
731 case GL_ACTIVE_STENCIL_FACE_EXT:
732 v->value_enum = ctx->Stencil.ActiveFace ? GL_BACK : GL_FRONT;
733 break;
734
735 case GL_STENCIL_FAIL:
736 v->value_enum = ctx->Stencil.FailFunc[ctx->Stencil.ActiveFace];
737 break;
738 case GL_STENCIL_FUNC:
739 v->value_enum = ctx->Stencil.Function[ctx->Stencil.ActiveFace];
740 break;
741 case GL_STENCIL_PASS_DEPTH_FAIL:
742 v->value_enum = ctx->Stencil.ZFailFunc[ctx->Stencil.ActiveFace];
743 break;
744 case GL_STENCIL_PASS_DEPTH_PASS:
745 v->value_enum = ctx->Stencil.ZPassFunc[ctx->Stencil.ActiveFace];
746 break;
747 case GL_STENCIL_REF:
748 v->value_int = _mesa_get_stencil_ref(ctx, ctx->Stencil.ActiveFace);
749 break;
750 case GL_STENCIL_BACK_REF:
751 v->value_int = _mesa_get_stencil_ref(ctx, 1);
752 break;
753 case GL_STENCIL_VALUE_MASK:
754 v->value_int = ctx->Stencil.ValueMask[ctx->Stencil.ActiveFace];
755 break;
756 case GL_STENCIL_WRITEMASK:
757 v->value_int = ctx->Stencil.WriteMask[ctx->Stencil.ActiveFace];
758 break;
759
760 case GL_NUM_EXTENSIONS:
761 v->value_int = _mesa_get_extension_count(ctx);
762 break;
763
764 case GL_IMPLEMENTATION_COLOR_READ_TYPE_OES:
765 v->value_int = _mesa_get_color_read_type(ctx);
766 break;
767 case GL_IMPLEMENTATION_COLOR_READ_FORMAT_OES:
768 v->value_int = _mesa_get_color_read_format(ctx);
769 break;
770
771 case GL_CURRENT_MATRIX_STACK_DEPTH_ARB:
772 v->value_int = ctx->CurrentStack->Depth + 1;
773 break;
774 case GL_CURRENT_MATRIX_ARB:
775 case GL_TRANSPOSE_CURRENT_MATRIX_ARB:
776 v->value_matrix = ctx->CurrentStack->Top;
777 break;
778
779 case GL_NUM_COMPRESSED_TEXTURE_FORMATS_ARB:
780 v->value_int = _mesa_get_compressed_formats(ctx, NULL);
781 break;
782 case GL_COMPRESSED_TEXTURE_FORMATS_ARB:
783 v->value_int_n.n =
784 _mesa_get_compressed_formats(ctx, v->value_int_n.ints);
785 assert(v->value_int_n.n <= (int) ARRAY_SIZE(v->value_int_n.ints));
786 break;
787
788 case GL_MAX_VARYING_FLOATS_ARB:
789 v->value_int = ctx->Const.MaxVarying * 4;
790 break;
791
792 /* Various object names */
793
794 case GL_TEXTURE_BINDING_1D:
795 case GL_TEXTURE_BINDING_2D:
796 case GL_TEXTURE_BINDING_3D:
797 case GL_TEXTURE_BINDING_1D_ARRAY_EXT:
798 case GL_TEXTURE_BINDING_2D_ARRAY_EXT:
799 case GL_TEXTURE_BINDING_CUBE_MAP_ARB:
800 case GL_TEXTURE_BINDING_RECTANGLE_NV:
801 case GL_TEXTURE_BINDING_EXTERNAL_OES:
802 case GL_TEXTURE_BINDING_CUBE_MAP_ARRAY:
803 case GL_TEXTURE_BINDING_2D_MULTISAMPLE:
804 case GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY:
805 unit = ctx->Texture.CurrentUnit;
806 v->value_int =
807 ctx->Texture.Unit[unit].CurrentTex[d->offset]->Name;
808 break;
809
810 /* GL_EXT_packed_float */
811 case GL_RGBA_SIGNED_COMPONENTS_EXT:
812 {
813 /* Note: we only check the 0th color attachment. */
814 const struct gl_renderbuffer *rb =
815 ctx->DrawBuffer->_ColorDrawBuffers[0];
816 if (rb && _mesa_is_format_signed(rb->Format)) {
817 /* Issue 17 of GL_EXT_packed_float: If a component (such as
818 * alpha) has zero bits, the component should not be considered
819 * signed and so the bit for the respective component should be
820 * zeroed.
821 */
822 GLint r_bits =
823 _mesa_get_format_bits(rb->Format, GL_RED_BITS);
824 GLint g_bits =
825 _mesa_get_format_bits(rb->Format, GL_GREEN_BITS);
826 GLint b_bits =
827 _mesa_get_format_bits(rb->Format, GL_BLUE_BITS);
828 GLint a_bits =
829 _mesa_get_format_bits(rb->Format, GL_ALPHA_BITS);
830 GLint l_bits =
831 _mesa_get_format_bits(rb->Format, GL_TEXTURE_LUMINANCE_SIZE);
832 GLint i_bits =
833 _mesa_get_format_bits(rb->Format, GL_TEXTURE_INTENSITY_SIZE);
834
835 v->value_int_4[0] = r_bits + l_bits + i_bits > 0;
836 v->value_int_4[1] = g_bits + l_bits + i_bits > 0;
837 v->value_int_4[2] = b_bits + l_bits + i_bits > 0;
838 v->value_int_4[3] = a_bits + i_bits > 0;
839 }
840 else {
841 v->value_int_4[0] =
842 v->value_int_4[1] =
843 v->value_int_4[2] =
844 v->value_int_4[3] = 0;
845 }
846 }
847 break;
848
849 /* GL_ARB_vertex_buffer_object */
850 case GL_VERTEX_ARRAY_BUFFER_BINDING_ARB:
851 case GL_NORMAL_ARRAY_BUFFER_BINDING_ARB:
852 case GL_COLOR_ARRAY_BUFFER_BINDING_ARB:
853 case GL_INDEX_ARRAY_BUFFER_BINDING_ARB:
854 case GL_EDGE_FLAG_ARRAY_BUFFER_BINDING_ARB:
855 case GL_SECONDARY_COLOR_ARRAY_BUFFER_BINDING_ARB:
856 case GL_FOG_COORDINATE_ARRAY_BUFFER_BINDING_ARB:
857 buffer_obj = (struct gl_buffer_object **)
858 ((char *) ctx->Array.VAO + d->offset);
859 v->value_int = (*buffer_obj)->Name;
860 break;
861 case GL_ARRAY_BUFFER_BINDING_ARB:
862 v->value_int = ctx->Array.ArrayBufferObj->Name;
863 break;
864 case GL_TEXTURE_COORD_ARRAY_BUFFER_BINDING_ARB:
865 v->value_int =
866 ctx->Array.VAO->VertexBinding[VERT_ATTRIB_TEX(ctx->Array.ActiveTexture)].BufferObj->Name;
867 break;
868 case GL_ELEMENT_ARRAY_BUFFER_BINDING_ARB:
869 v->value_int = ctx->Array.VAO->IndexBufferObj->Name;
870 break;
871
872 /* ARB_vertex_array_bgra */
873 case GL_COLOR_ARRAY_SIZE:
874 array = &ctx->Array.VAO->VertexAttrib[VERT_ATTRIB_COLOR0];
875 v->value_int = array->Format == GL_BGRA ? GL_BGRA : array->Size;
876 break;
877 case GL_SECONDARY_COLOR_ARRAY_SIZE:
878 array = &ctx->Array.VAO->VertexAttrib[VERT_ATTRIB_COLOR1];
879 v->value_int = array->Format == GL_BGRA ? GL_BGRA : array->Size;
880 break;
881
882 /* ARB_copy_buffer */
883 case GL_COPY_READ_BUFFER:
884 v->value_int = ctx->CopyReadBuffer->Name;
885 break;
886 case GL_COPY_WRITE_BUFFER:
887 v->value_int = ctx->CopyWriteBuffer->Name;
888 break;
889
890 case GL_PIXEL_PACK_BUFFER_BINDING_EXT:
891 v->value_int = ctx->Pack.BufferObj->Name;
892 break;
893 case GL_PIXEL_UNPACK_BUFFER_BINDING_EXT:
894 v->value_int = ctx->Unpack.BufferObj->Name;
895 break;
896 case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING:
897 v->value_int = ctx->TransformFeedback.CurrentBuffer->Name;
898 break;
899 case GL_TRANSFORM_FEEDBACK_BUFFER_PAUSED:
900 v->value_int = ctx->TransformFeedback.CurrentObject->Paused;
901 break;
902 case GL_TRANSFORM_FEEDBACK_BUFFER_ACTIVE:
903 v->value_int = ctx->TransformFeedback.CurrentObject->Active;
904 break;
905 case GL_TRANSFORM_FEEDBACK_BINDING:
906 v->value_int = ctx->TransformFeedback.CurrentObject->Name;
907 break;
908 case GL_CURRENT_PROGRAM:
909 /* The Changelog of the ARB_separate_shader_objects spec says:
910 *
911 * 24 25 Jul 2011 pbrown Remove the language erroneously deleting
912 * CURRENT_PROGRAM. In the EXT extension, this
913 * token was aliased to ACTIVE_PROGRAM_EXT, and
914 * was used to indicate the last program set by
915 * either ActiveProgramEXT or UseProgram. In
916 * the ARB extension, the SSO active programs
917 * are now program pipeline object state and
918 * CURRENT_PROGRAM should still be used to query
919 * the last program set by UseProgram (bug 7822).
920 */
921 v->value_int =
922 ctx->Shader.ActiveProgram ? ctx->Shader.ActiveProgram->Name : 0;
923 break;
924 case GL_READ_FRAMEBUFFER_BINDING_EXT:
925 v->value_int = ctx->ReadBuffer->Name;
926 break;
927 case GL_RENDERBUFFER_BINDING_EXT:
928 v->value_int =
929 ctx->CurrentRenderbuffer ? ctx->CurrentRenderbuffer->Name : 0;
930 break;
931 case GL_POINT_SIZE_ARRAY_BUFFER_BINDING_OES:
932 v->value_int = ctx->Array.VAO->VertexBinding[VERT_ATTRIB_POINT_SIZE].BufferObj->Name;
933 break;
934
935 case GL_FOG_COLOR:
936 if (_mesa_get_clamp_fragment_color(ctx, ctx->DrawBuffer))
937 COPY_4FV(v->value_float_4, ctx->Fog.Color);
938 else
939 COPY_4FV(v->value_float_4, ctx->Fog.ColorUnclamped);
940 break;
941 case GL_COLOR_CLEAR_VALUE:
942 if (_mesa_get_clamp_fragment_color(ctx, ctx->DrawBuffer)) {
943 v->value_float_4[0] = CLAMP(ctx->Color.ClearColor.f[0], 0.0F, 1.0F);
944 v->value_float_4[1] = CLAMP(ctx->Color.ClearColor.f[1], 0.0F, 1.0F);
945 v->value_float_4[2] = CLAMP(ctx->Color.ClearColor.f[2], 0.0F, 1.0F);
946 v->value_float_4[3] = CLAMP(ctx->Color.ClearColor.f[3], 0.0F, 1.0F);
947 } else
948 COPY_4FV(v->value_float_4, ctx->Color.ClearColor.f);
949 break;
950 case GL_BLEND_COLOR_EXT:
951 if (_mesa_get_clamp_fragment_color(ctx, ctx->DrawBuffer))
952 COPY_4FV(v->value_float_4, ctx->Color.BlendColor);
953 else
954 COPY_4FV(v->value_float_4, ctx->Color.BlendColorUnclamped);
955 break;
956 case GL_ALPHA_TEST_REF:
957 if (_mesa_get_clamp_fragment_color(ctx, ctx->DrawBuffer))
958 v->value_float = ctx->Color.AlphaRef;
959 else
960 v->value_float = ctx->Color.AlphaRefUnclamped;
961 break;
962 case GL_MAX_VERTEX_UNIFORM_VECTORS:
963 v->value_int = ctx->Const.Program[MESA_SHADER_VERTEX].MaxUniformComponents / 4;
964 break;
965
966 case GL_MAX_FRAGMENT_UNIFORM_VECTORS:
967 v->value_int = ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxUniformComponents / 4;
968 break;
969
970 /* GL_ARB_texture_buffer_object */
971 case GL_TEXTURE_BUFFER_ARB:
972 v->value_int = ctx->Texture.BufferObject->Name;
973 break;
974 case GL_TEXTURE_BINDING_BUFFER_ARB:
975 unit = ctx->Texture.CurrentUnit;
976 v->value_int =
977 ctx->Texture.Unit[unit].CurrentTex[TEXTURE_BUFFER_INDEX]->Name;
978 break;
979 case GL_TEXTURE_BUFFER_DATA_STORE_BINDING_ARB:
980 {
981 struct gl_buffer_object *buf =
982 ctx->Texture.Unit[ctx->Texture.CurrentUnit]
983 .CurrentTex[TEXTURE_BUFFER_INDEX]->BufferObject;
984 v->value_int = buf ? buf->Name : 0;
985 }
986 break;
987 case GL_TEXTURE_BUFFER_FORMAT_ARB:
988 v->value_int = ctx->Texture.Unit[ctx->Texture.CurrentUnit]
989 .CurrentTex[TEXTURE_BUFFER_INDEX]->BufferObjectFormat;
990 break;
991
992 /* GL_ARB_sampler_objects */
993 case GL_SAMPLER_BINDING:
994 {
995 struct gl_sampler_object *samp =
996 ctx->Texture.Unit[ctx->Texture.CurrentUnit].Sampler;
997
998 /*
999 * The sampler object may have been deleted on another context,
1000 * so we try to lookup the sampler object before returning its Name.
1001 */
1002 if (samp && _mesa_lookup_samplerobj(ctx, samp->Name)) {
1003 v->value_int = samp->Name;
1004 } else {
1005 v->value_int = 0;
1006 }
1007 }
1008 break;
1009 /* GL_ARB_uniform_buffer_object */
1010 case GL_UNIFORM_BUFFER_BINDING:
1011 v->value_int = ctx->UniformBuffer->Name;
1012 break;
1013 /* GL_ARB_timer_query */
1014 case GL_TIMESTAMP:
1015 if (ctx->Driver.GetTimestamp) {
1016 v->value_int64 = ctx->Driver.GetTimestamp(ctx);
1017 }
1018 else {
1019 _mesa_problem(ctx, "driver doesn't implement GetTimestamp");
1020 }
1021 break;
1022 /* GL_KHR_DEBUG */
1023 case GL_DEBUG_LOGGED_MESSAGES:
1024 case GL_DEBUG_NEXT_LOGGED_MESSAGE_LENGTH:
1025 case GL_DEBUG_GROUP_STACK_DEPTH:
1026 v->value_int = _mesa_get_debug_state_int(ctx, d->pname);
1027 break;
1028 /* GL_ARB_shader_atomic_counters */
1029 case GL_ATOMIC_COUNTER_BUFFER_BINDING:
1030 if (ctx->AtomicBuffer) {
1031 v->value_int = ctx->AtomicBuffer->Name;
1032 } else {
1033 v->value_int = 0;
1034 }
1035 break;
1036 /* GL_ARB_draw_indirect */
1037 case GL_DRAW_INDIRECT_BUFFER_BINDING:
1038 v->value_int = ctx->DrawIndirectBuffer->Name;
1039 break;
1040 /* GL_ARB_separate_shader_objects */
1041 case GL_PROGRAM_PIPELINE_BINDING:
1042 if (ctx->Pipeline.Current) {
1043 v->value_int = ctx->Pipeline.Current->Name;
1044 } else {
1045 v->value_int = 0;
1046 }
1047 break;
1048 }
1049 }
1050
1051 /**
1052 * Check extra constraints on a struct value_desc descriptor
1053 *
1054 * If a struct value_desc has a non-NULL extra pointer, it means that
1055 * there are a number of extra constraints to check or actions to
1056 * perform. The extras is just an integer array where each integer
1057 * encode different constraints or actions.
1058 *
1059 * \param ctx current context
1060 * \param func name of calling glGet*v() function for error reporting
1061 * \param d the struct value_desc that has the extra constraints
1062 *
1063 * \return GL_FALSE if all of the constraints were not satisfied,
1064 * otherwise GL_TRUE.
1065 */
1066 static GLboolean
1067 check_extra(struct gl_context *ctx, const char *func, const struct value_desc *d)
1068 {
1069 const GLuint version = ctx->Version;
1070 GLboolean api_check = GL_FALSE;
1071 GLboolean api_found = GL_FALSE;
1072 const int *e;
1073
1074 for (e = d->extra; *e != EXTRA_END; e++) {
1075 switch (*e) {
1076 case EXTRA_VERSION_30:
1077 api_check = GL_TRUE;
1078 if (version >= 30)
1079 api_found = GL_TRUE;
1080 break;
1081 case EXTRA_VERSION_31:
1082 api_check = GL_TRUE;
1083 if (version >= 31)
1084 api_found = GL_TRUE;
1085 break;
1086 case EXTRA_VERSION_32:
1087 api_check = GL_TRUE;
1088 if (version >= 32)
1089 api_found = GL_TRUE;
1090 break;
1091 case EXTRA_NEW_FRAG_CLAMP:
1092 if (ctx->NewState & (_NEW_BUFFERS | _NEW_FRAG_CLAMP))
1093 _mesa_update_state(ctx);
1094 break;
1095 case EXTRA_API_ES2:
1096 api_check = GL_TRUE;
1097 if (ctx->API == API_OPENGLES2)
1098 api_found = GL_TRUE;
1099 break;
1100 case EXTRA_API_ES3:
1101 api_check = GL_TRUE;
1102 if (_mesa_is_gles3(ctx))
1103 api_found = GL_TRUE;
1104 break;
1105 case EXTRA_API_ES31:
1106 api_check = GL_TRUE;
1107 if (_mesa_is_gles31(ctx))
1108 api_found = GL_TRUE;
1109 break;
1110 case EXTRA_API_GL:
1111 api_check = GL_TRUE;
1112 if (_mesa_is_desktop_gl(ctx))
1113 api_found = GL_TRUE;
1114 break;
1115 case EXTRA_API_GL_CORE:
1116 api_check = GL_TRUE;
1117 if (ctx->API == API_OPENGL_CORE)
1118 api_found = GL_TRUE;
1119 break;
1120 case EXTRA_NEW_BUFFERS:
1121 if (ctx->NewState & _NEW_BUFFERS)
1122 _mesa_update_state(ctx);
1123 break;
1124 case EXTRA_FLUSH_CURRENT:
1125 FLUSH_CURRENT(ctx, 0);
1126 break;
1127 case EXTRA_VALID_DRAW_BUFFER:
1128 if (d->pname - GL_DRAW_BUFFER0_ARB >= ctx->Const.MaxDrawBuffers) {
1129 _mesa_error(ctx, GL_INVALID_OPERATION, "%s(draw buffer %u)",
1130 func, d->pname - GL_DRAW_BUFFER0_ARB);
1131 return GL_FALSE;
1132 }
1133 break;
1134 case EXTRA_VALID_TEXTURE_UNIT:
1135 if (ctx->Texture.CurrentUnit >= ctx->Const.MaxTextureCoordUnits) {
1136 _mesa_error(ctx, GL_INVALID_OPERATION, "%s(texture %u)",
1137 func, ctx->Texture.CurrentUnit);
1138 return GL_FALSE;
1139 }
1140 break;
1141 case EXTRA_VALID_CLIP_DISTANCE:
1142 if (d->pname - GL_CLIP_DISTANCE0 >= ctx->Const.MaxClipPlanes) {
1143 _mesa_error(ctx, GL_INVALID_ENUM, "%s(clip distance %u)",
1144 func, d->pname - GL_CLIP_DISTANCE0);
1145 return GL_FALSE;
1146 }
1147 break;
1148 case EXTRA_GLSL_130:
1149 api_check = GL_TRUE;
1150 if (ctx->Const.GLSLVersion >= 130)
1151 api_found = GL_TRUE;
1152 break;
1153 case EXTRA_EXT_UBO_GS4:
1154 api_check = GL_TRUE;
1155 api_found = (ctx->Extensions.ARB_uniform_buffer_object &&
1156 _mesa_has_geometry_shaders(ctx));
1157 break;
1158 case EXTRA_EXT_ATOMICS_GS4:
1159 api_check = GL_TRUE;
1160 api_found = (ctx->Extensions.ARB_shader_atomic_counters &&
1161 _mesa_has_geometry_shaders(ctx));
1162 break;
1163 case EXTRA_EXT_SHADER_IMAGE_GS4:
1164 api_check = GL_TRUE;
1165 api_found = (ctx->Extensions.ARB_shader_image_load_store &&
1166 _mesa_has_geometry_shaders(ctx));
1167 break;
1168 case EXTRA_EXT_ATOMICS_TESS:
1169 api_check = GL_TRUE;
1170 api_found = ctx->Extensions.ARB_shader_atomic_counters &&
1171 _mesa_has_tessellation(ctx);
1172 break;
1173 case EXTRA_EXT_SHADER_IMAGE_TESS:
1174 api_check = GL_TRUE;
1175 api_found = ctx->Extensions.ARB_shader_image_load_store &&
1176 _mesa_has_tessellation(ctx);
1177 break;
1178 case EXTRA_END:
1179 break;
1180 default: /* *e is a offset into the extension struct */
1181 api_check = GL_TRUE;
1182 if (*(GLboolean *) ((char *) &ctx->Extensions + *e))
1183 api_found = GL_TRUE;
1184 break;
1185 }
1186 }
1187
1188 if (api_check && !api_found) {
1189 _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func,
1190 _mesa_enum_to_string(d->pname));
1191 return GL_FALSE;
1192 }
1193
1194 return GL_TRUE;
1195 }
1196
1197 static const struct value_desc error_value =
1198 { 0, 0, TYPE_INVALID, NO_OFFSET, NO_EXTRA };
1199
1200 /**
1201 * Find the struct value_desc corresponding to the enum 'pname'.
1202 *
1203 * We hash the enum value to get an index into the 'table' array,
1204 * which holds the index in the 'values' array of struct value_desc.
1205 * Once we've found the entry, we do the extra checks, if any, then
1206 * look up the value and return a pointer to it.
1207 *
1208 * If the value has to be computed (for example, it's the result of a
1209 * function call or we need to add 1 to it), we use the tmp 'v' to
1210 * store the result.
1211 *
1212 * \param func name of glGet*v() func for error reporting
1213 * \param pname the enum value we're looking up
1214 * \param p is were we return the pointer to the value
1215 * \param v a tmp union value variable in the calling glGet*v() function
1216 *
1217 * \return the struct value_desc corresponding to the enum or a struct
1218 * value_desc of TYPE_INVALID if not found. This lets the calling
1219 * glGet*v() function jump right into a switch statement and
1220 * handle errors there instead of having to check for NULL.
1221 */
1222 static const struct value_desc *
1223 find_value(const char *func, GLenum pname, void **p, union value *v)
1224 {
1225 GET_CURRENT_CONTEXT(ctx);
1226 struct gl_texture_unit *unit;
1227 int mask, hash;
1228 const struct value_desc *d;
1229 int api;
1230
1231 api = ctx->API;
1232 /* We index into the table_set[] list of per-API hash tables using the API's
1233 * value in the gl_api enum. Since GLES 3 doesn't have an API_OPENGL* enum
1234 * value since it's compatible with GLES2 its entry in table_set[] is at the
1235 * end.
1236 */
1237 STATIC_ASSERT(ARRAY_SIZE(table_set) == API_OPENGL_LAST + 3);
1238 if (_mesa_is_gles3(ctx)) {
1239 api = API_OPENGL_LAST + 1;
1240 }
1241 if (_mesa_is_gles31(ctx)) {
1242 api = API_OPENGL_LAST + 2;
1243 }
1244 mask = ARRAY_SIZE(table(api)) - 1;
1245 hash = (pname * prime_factor);
1246 while (1) {
1247 int idx = table(api)[hash & mask];
1248
1249 /* If the enum isn't valid, the hash walk ends with index 0,
1250 * pointing to the first entry of values[] which doesn't hold
1251 * any valid enum. */
1252 if (unlikely(idx == 0)) {
1253 _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func,
1254 _mesa_enum_to_string(pname));
1255 return &error_value;
1256 }
1257
1258 d = &values[idx];
1259 if (likely(d->pname == pname))
1260 break;
1261
1262 hash += prime_step;
1263 }
1264
1265 if (unlikely(d->extra && !check_extra(ctx, func, d)))
1266 return &error_value;
1267
1268 switch (d->location) {
1269 case LOC_BUFFER:
1270 *p = ((char *) ctx->DrawBuffer + d->offset);
1271 return d;
1272 case LOC_CONTEXT:
1273 *p = ((char *) ctx + d->offset);
1274 return d;
1275 case LOC_ARRAY:
1276 *p = ((char *) ctx->Array.VAO + d->offset);
1277 return d;
1278 case LOC_TEXUNIT:
1279 unit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
1280 *p = ((char *) unit + d->offset);
1281 return d;
1282 case LOC_CUSTOM:
1283 find_custom_value(ctx, d, v);
1284 *p = v;
1285 return d;
1286 default:
1287 assert(0);
1288 break;
1289 }
1290
1291 /* silence warning */
1292 return &error_value;
1293 }
1294
1295 static const int transpose[] = {
1296 0, 4, 8, 12,
1297 1, 5, 9, 13,
1298 2, 6, 10, 14,
1299 3, 7, 11, 15
1300 };
1301
1302 void GLAPIENTRY
1303 _mesa_GetBooleanv(GLenum pname, GLboolean *params)
1304 {
1305 const struct value_desc *d;
1306 union value v;
1307 GLmatrix *m;
1308 int shift, i;
1309 void *p;
1310
1311 d = find_value("glGetBooleanv", pname, &p, &v);
1312 switch (d->type) {
1313 case TYPE_INVALID:
1314 break;
1315 case TYPE_CONST:
1316 params[0] = INT_TO_BOOLEAN(d->offset);
1317 break;
1318
1319 case TYPE_FLOAT_4:
1320 case TYPE_FLOATN_4:
1321 params[3] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[3]);
1322 case TYPE_FLOAT_3:
1323 case TYPE_FLOATN_3:
1324 params[2] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[2]);
1325 case TYPE_FLOAT_2:
1326 case TYPE_FLOATN_2:
1327 params[1] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[1]);
1328 case TYPE_FLOAT:
1329 case TYPE_FLOATN:
1330 params[0] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[0]);
1331 break;
1332
1333 case TYPE_DOUBLEN_2:
1334 params[1] = FLOAT_TO_BOOLEAN(((GLdouble *) p)[1]);
1335 case TYPE_DOUBLEN:
1336 params[0] = FLOAT_TO_BOOLEAN(((GLdouble *) p)[0]);
1337 break;
1338
1339 case TYPE_INT_4:
1340 params[3] = INT_TO_BOOLEAN(((GLint *) p)[3]);
1341 case TYPE_INT_3:
1342 params[2] = INT_TO_BOOLEAN(((GLint *) p)[2]);
1343 case TYPE_INT_2:
1344 case TYPE_ENUM_2:
1345 params[1] = INT_TO_BOOLEAN(((GLint *) p)[1]);
1346 case TYPE_INT:
1347 case TYPE_ENUM:
1348 params[0] = INT_TO_BOOLEAN(((GLint *) p)[0]);
1349 break;
1350
1351 case TYPE_INT_N:
1352 for (i = 0; i < v.value_int_n.n; i++)
1353 params[i] = INT_TO_BOOLEAN(v.value_int_n.ints[i]);
1354 break;
1355
1356 case TYPE_INT64:
1357 params[0] = INT64_TO_BOOLEAN(((GLint64 *) p)[0]);
1358 break;
1359
1360 case TYPE_BOOLEAN:
1361 params[0] = ((GLboolean*) p)[0];
1362 break;
1363
1364 case TYPE_MATRIX:
1365 m = *(GLmatrix **) p;
1366 for (i = 0; i < 16; i++)
1367 params[i] = FLOAT_TO_BOOLEAN(m->m[i]);
1368 break;
1369
1370 case TYPE_MATRIX_T:
1371 m = *(GLmatrix **) p;
1372 for (i = 0; i < 16; i++)
1373 params[i] = FLOAT_TO_BOOLEAN(m->m[transpose[i]]);
1374 break;
1375
1376 case TYPE_BIT_0:
1377 case TYPE_BIT_1:
1378 case TYPE_BIT_2:
1379 case TYPE_BIT_3:
1380 case TYPE_BIT_4:
1381 case TYPE_BIT_5:
1382 case TYPE_BIT_6:
1383 case TYPE_BIT_7:
1384 shift = d->type - TYPE_BIT_0;
1385 params[0] = (*(GLbitfield *) p >> shift) & 1;
1386 break;
1387 }
1388 }
1389
1390 void GLAPIENTRY
1391 _mesa_GetFloatv(GLenum pname, GLfloat *params)
1392 {
1393 const struct value_desc *d;
1394 union value v;
1395 GLmatrix *m;
1396 int shift, i;
1397 void *p;
1398
1399 d = find_value("glGetFloatv", pname, &p, &v);
1400 switch (d->type) {
1401 case TYPE_INVALID:
1402 break;
1403 case TYPE_CONST:
1404 params[0] = (GLfloat) d->offset;
1405 break;
1406
1407 case TYPE_FLOAT_4:
1408 case TYPE_FLOATN_4:
1409 params[3] = ((GLfloat *) p)[3];
1410 case TYPE_FLOAT_3:
1411 case TYPE_FLOATN_3:
1412 params[2] = ((GLfloat *) p)[2];
1413 case TYPE_FLOAT_2:
1414 case TYPE_FLOATN_2:
1415 params[1] = ((GLfloat *) p)[1];
1416 case TYPE_FLOAT:
1417 case TYPE_FLOATN:
1418 params[0] = ((GLfloat *) p)[0];
1419 break;
1420
1421 case TYPE_DOUBLEN_2:
1422 params[1] = (GLfloat) (((GLdouble *) p)[1]);
1423 case TYPE_DOUBLEN:
1424 params[0] = (GLfloat) (((GLdouble *) p)[0]);
1425 break;
1426
1427 case TYPE_INT_4:
1428 params[3] = (GLfloat) (((GLint *) p)[3]);
1429 case TYPE_INT_3:
1430 params[2] = (GLfloat) (((GLint *) p)[2]);
1431 case TYPE_INT_2:
1432 case TYPE_ENUM_2:
1433 params[1] = (GLfloat) (((GLint *) p)[1]);
1434 case TYPE_INT:
1435 case TYPE_ENUM:
1436 params[0] = (GLfloat) (((GLint *) p)[0]);
1437 break;
1438
1439 case TYPE_INT_N:
1440 for (i = 0; i < v.value_int_n.n; i++)
1441 params[i] = INT_TO_FLOAT(v.value_int_n.ints[i]);
1442 break;
1443
1444 case TYPE_INT64:
1445 params[0] = (GLfloat) (((GLint64 *) p)[0]);
1446 break;
1447
1448 case TYPE_BOOLEAN:
1449 params[0] = BOOLEAN_TO_FLOAT(*(GLboolean*) p);
1450 break;
1451
1452 case TYPE_MATRIX:
1453 m = *(GLmatrix **) p;
1454 for (i = 0; i < 16; i++)
1455 params[i] = m->m[i];
1456 break;
1457
1458 case TYPE_MATRIX_T:
1459 m = *(GLmatrix **) p;
1460 for (i = 0; i < 16; i++)
1461 params[i] = m->m[transpose[i]];
1462 break;
1463
1464 case TYPE_BIT_0:
1465 case TYPE_BIT_1:
1466 case TYPE_BIT_2:
1467 case TYPE_BIT_3:
1468 case TYPE_BIT_4:
1469 case TYPE_BIT_5:
1470 case TYPE_BIT_6:
1471 case TYPE_BIT_7:
1472 shift = d->type - TYPE_BIT_0;
1473 params[0] = BOOLEAN_TO_FLOAT((*(GLbitfield *) p >> shift) & 1);
1474 break;
1475 }
1476 }
1477
1478 void GLAPIENTRY
1479 _mesa_GetIntegerv(GLenum pname, GLint *params)
1480 {
1481 const struct value_desc *d;
1482 union value v;
1483 GLmatrix *m;
1484 int shift, i;
1485 void *p;
1486
1487 d = find_value("glGetIntegerv", pname, &p, &v);
1488 switch (d->type) {
1489 case TYPE_INVALID:
1490 break;
1491 case TYPE_CONST:
1492 params[0] = d->offset;
1493 break;
1494
1495 case TYPE_FLOAT_4:
1496 params[3] = IROUND(((GLfloat *) p)[3]);
1497 case TYPE_FLOAT_3:
1498 params[2] = IROUND(((GLfloat *) p)[2]);
1499 case TYPE_FLOAT_2:
1500 params[1] = IROUND(((GLfloat *) p)[1]);
1501 case TYPE_FLOAT:
1502 params[0] = IROUND(((GLfloat *) p)[0]);
1503 break;
1504
1505 case TYPE_FLOATN_4:
1506 params[3] = FLOAT_TO_INT(((GLfloat *) p)[3]);
1507 case TYPE_FLOATN_3:
1508 params[2] = FLOAT_TO_INT(((GLfloat *) p)[2]);
1509 case TYPE_FLOATN_2:
1510 params[1] = FLOAT_TO_INT(((GLfloat *) p)[1]);
1511 case TYPE_FLOATN:
1512 params[0] = FLOAT_TO_INT(((GLfloat *) p)[0]);
1513 break;
1514
1515 case TYPE_DOUBLEN_2:
1516 params[1] = FLOAT_TO_INT(((GLdouble *) p)[1]);
1517 case TYPE_DOUBLEN:
1518 params[0] = FLOAT_TO_INT(((GLdouble *) p)[0]);
1519 break;
1520
1521 case TYPE_INT_4:
1522 params[3] = ((GLint *) p)[3];
1523 case TYPE_INT_3:
1524 params[2] = ((GLint *) p)[2];
1525 case TYPE_INT_2:
1526 case TYPE_ENUM_2:
1527 params[1] = ((GLint *) p)[1];
1528 case TYPE_INT:
1529 case TYPE_ENUM:
1530 params[0] = ((GLint *) p)[0];
1531 break;
1532
1533 case TYPE_INT_N:
1534 for (i = 0; i < v.value_int_n.n; i++)
1535 params[i] = v.value_int_n.ints[i];
1536 break;
1537
1538 case TYPE_INT64:
1539 params[0] = INT64_TO_INT(((GLint64 *) p)[0]);
1540 break;
1541
1542 case TYPE_BOOLEAN:
1543 params[0] = BOOLEAN_TO_INT(*(GLboolean*) p);
1544 break;
1545
1546 case TYPE_MATRIX:
1547 m = *(GLmatrix **) p;
1548 for (i = 0; i < 16; i++)
1549 params[i] = FLOAT_TO_INT(m->m[i]);
1550 break;
1551
1552 case TYPE_MATRIX_T:
1553 m = *(GLmatrix **) p;
1554 for (i = 0; i < 16; i++)
1555 params[i] = FLOAT_TO_INT(m->m[transpose[i]]);
1556 break;
1557
1558 case TYPE_BIT_0:
1559 case TYPE_BIT_1:
1560 case TYPE_BIT_2:
1561 case TYPE_BIT_3:
1562 case TYPE_BIT_4:
1563 case TYPE_BIT_5:
1564 case TYPE_BIT_6:
1565 case TYPE_BIT_7:
1566 shift = d->type - TYPE_BIT_0;
1567 params[0] = (*(GLbitfield *) p >> shift) & 1;
1568 break;
1569 }
1570 }
1571
1572 void GLAPIENTRY
1573 _mesa_GetInteger64v(GLenum pname, GLint64 *params)
1574 {
1575 const struct value_desc *d;
1576 union value v;
1577 GLmatrix *m;
1578 int shift, i;
1579 void *p;
1580
1581 d = find_value("glGetInteger64v", pname, &p, &v);
1582 switch (d->type) {
1583 case TYPE_INVALID:
1584 break;
1585 case TYPE_CONST:
1586 params[0] = d->offset;
1587 break;
1588
1589 case TYPE_FLOAT_4:
1590 params[3] = IROUND64(((GLfloat *) p)[3]);
1591 case TYPE_FLOAT_3:
1592 params[2] = IROUND64(((GLfloat *) p)[2]);
1593 case TYPE_FLOAT_2:
1594 params[1] = IROUND64(((GLfloat *) p)[1]);
1595 case TYPE_FLOAT:
1596 params[0] = IROUND64(((GLfloat *) p)[0]);
1597 break;
1598
1599 case TYPE_FLOATN_4:
1600 params[3] = FLOAT_TO_INT64(((GLfloat *) p)[3]);
1601 case TYPE_FLOATN_3:
1602 params[2] = FLOAT_TO_INT64(((GLfloat *) p)[2]);
1603 case TYPE_FLOATN_2:
1604 params[1] = FLOAT_TO_INT64(((GLfloat *) p)[1]);
1605 case TYPE_FLOATN:
1606 params[0] = FLOAT_TO_INT64(((GLfloat *) p)[0]);
1607 break;
1608
1609 case TYPE_DOUBLEN_2:
1610 params[1] = FLOAT_TO_INT64(((GLdouble *) p)[1]);
1611 case TYPE_DOUBLEN:
1612 params[0] = FLOAT_TO_INT64(((GLdouble *) p)[0]);
1613 break;
1614
1615 case TYPE_INT_4:
1616 params[3] = ((GLint *) p)[3];
1617 case TYPE_INT_3:
1618 params[2] = ((GLint *) p)[2];
1619 case TYPE_INT_2:
1620 case TYPE_ENUM_2:
1621 params[1] = ((GLint *) p)[1];
1622 case TYPE_INT:
1623 case TYPE_ENUM:
1624 params[0] = ((GLint *) p)[0];
1625 break;
1626
1627 case TYPE_INT_N:
1628 for (i = 0; i < v.value_int_n.n; i++)
1629 params[i] = INT_TO_BOOLEAN(v.value_int_n.ints[i]);
1630 break;
1631
1632 case TYPE_INT64:
1633 params[0] = ((GLint64 *) p)[0];
1634 break;
1635
1636 case TYPE_BOOLEAN:
1637 params[0] = ((GLboolean*) p)[0];
1638 break;
1639
1640 case TYPE_MATRIX:
1641 m = *(GLmatrix **) p;
1642 for (i = 0; i < 16; i++)
1643 params[i] = FLOAT_TO_INT64(m->m[i]);
1644 break;
1645
1646 case TYPE_MATRIX_T:
1647 m = *(GLmatrix **) p;
1648 for (i = 0; i < 16; i++)
1649 params[i] = FLOAT_TO_INT64(m->m[transpose[i]]);
1650 break;
1651
1652 case TYPE_BIT_0:
1653 case TYPE_BIT_1:
1654 case TYPE_BIT_2:
1655 case TYPE_BIT_3:
1656 case TYPE_BIT_4:
1657 case TYPE_BIT_5:
1658 case TYPE_BIT_6:
1659 case TYPE_BIT_7:
1660 shift = d->type - TYPE_BIT_0;
1661 params[0] = (*(GLbitfield *) p >> shift) & 1;
1662 break;
1663 }
1664 }
1665
1666 void GLAPIENTRY
1667 _mesa_GetDoublev(GLenum pname, GLdouble *params)
1668 {
1669 const struct value_desc *d;
1670 union value v;
1671 GLmatrix *m;
1672 int shift, i;
1673 void *p;
1674
1675 d = find_value("glGetDoublev", pname, &p, &v);
1676 switch (d->type) {
1677 case TYPE_INVALID:
1678 break;
1679 case TYPE_CONST:
1680 params[0] = d->offset;
1681 break;
1682
1683 case TYPE_FLOAT_4:
1684 case TYPE_FLOATN_4:
1685 params[3] = ((GLfloat *) p)[3];
1686 case TYPE_FLOAT_3:
1687 case TYPE_FLOATN_3:
1688 params[2] = ((GLfloat *) p)[2];
1689 case TYPE_FLOAT_2:
1690 case TYPE_FLOATN_2:
1691 params[1] = ((GLfloat *) p)[1];
1692 case TYPE_FLOAT:
1693 case TYPE_FLOATN:
1694 params[0] = ((GLfloat *) p)[0];
1695 break;
1696
1697 case TYPE_DOUBLEN_2:
1698 params[1] = ((GLdouble *) p)[1];
1699 case TYPE_DOUBLEN:
1700 params[0] = ((GLdouble *) p)[0];
1701 break;
1702
1703 case TYPE_INT_4:
1704 params[3] = ((GLint *) p)[3];
1705 case TYPE_INT_3:
1706 params[2] = ((GLint *) p)[2];
1707 case TYPE_INT_2:
1708 case TYPE_ENUM_2:
1709 params[1] = ((GLint *) p)[1];
1710 case TYPE_INT:
1711 case TYPE_ENUM:
1712 params[0] = ((GLint *) p)[0];
1713 break;
1714
1715 case TYPE_INT_N:
1716 for (i = 0; i < v.value_int_n.n; i++)
1717 params[i] = v.value_int_n.ints[i];
1718 break;
1719
1720 case TYPE_INT64:
1721 params[0] = (GLdouble) (((GLint64 *) p)[0]);
1722 break;
1723
1724 case TYPE_BOOLEAN:
1725 params[0] = *(GLboolean*) p;
1726 break;
1727
1728 case TYPE_MATRIX:
1729 m = *(GLmatrix **) p;
1730 for (i = 0; i < 16; i++)
1731 params[i] = m->m[i];
1732 break;
1733
1734 case TYPE_MATRIX_T:
1735 m = *(GLmatrix **) p;
1736 for (i = 0; i < 16; i++)
1737 params[i] = m->m[transpose[i]];
1738 break;
1739
1740 case TYPE_BIT_0:
1741 case TYPE_BIT_1:
1742 case TYPE_BIT_2:
1743 case TYPE_BIT_3:
1744 case TYPE_BIT_4:
1745 case TYPE_BIT_5:
1746 case TYPE_BIT_6:
1747 case TYPE_BIT_7:
1748 shift = d->type - TYPE_BIT_0;
1749 params[0] = (*(GLbitfield *) p >> shift) & 1;
1750 break;
1751 }
1752 }
1753
1754 /**
1755 * Convert a GL texture binding enum such as GL_TEXTURE_BINDING_2D
1756 * into the corresponding Mesa texture target index.
1757 * \return TEXTURE_x_INDEX or -1 if binding is invalid
1758 */
1759 static int
1760 tex_binding_to_index(const struct gl_context *ctx, GLenum binding)
1761 {
1762 switch (binding) {
1763 case GL_TEXTURE_BINDING_1D:
1764 return _mesa_is_desktop_gl(ctx) ? TEXTURE_1D_INDEX : -1;
1765 case GL_TEXTURE_BINDING_2D:
1766 return TEXTURE_2D_INDEX;
1767 case GL_TEXTURE_BINDING_3D:
1768 return ctx->API != API_OPENGLES ? TEXTURE_3D_INDEX : -1;
1769 case GL_TEXTURE_BINDING_CUBE_MAP:
1770 return ctx->Extensions.ARB_texture_cube_map
1771 ? TEXTURE_CUBE_INDEX : -1;
1772 case GL_TEXTURE_BINDING_RECTANGLE:
1773 return _mesa_is_desktop_gl(ctx) && ctx->Extensions.NV_texture_rectangle
1774 ? TEXTURE_RECT_INDEX : -1;
1775 case GL_TEXTURE_BINDING_1D_ARRAY:
1776 return _mesa_is_desktop_gl(ctx) && ctx->Extensions.EXT_texture_array
1777 ? TEXTURE_1D_ARRAY_INDEX : -1;
1778 case GL_TEXTURE_BINDING_2D_ARRAY:
1779 return (_mesa_is_desktop_gl(ctx) && ctx->Extensions.EXT_texture_array)
1780 || _mesa_is_gles3(ctx)
1781 ? TEXTURE_2D_ARRAY_INDEX : -1;
1782 case GL_TEXTURE_BINDING_BUFFER:
1783 return ctx->API == API_OPENGL_CORE &&
1784 ctx->Extensions.ARB_texture_buffer_object ?
1785 TEXTURE_BUFFER_INDEX : -1;
1786 case GL_TEXTURE_BINDING_CUBE_MAP_ARRAY:
1787 return _mesa_is_desktop_gl(ctx) && ctx->Extensions.ARB_texture_cube_map_array
1788 ? TEXTURE_CUBE_ARRAY_INDEX : -1;
1789 case GL_TEXTURE_BINDING_2D_MULTISAMPLE:
1790 return _mesa_is_desktop_gl(ctx) && ctx->Extensions.ARB_texture_multisample
1791 ? TEXTURE_2D_MULTISAMPLE_INDEX : -1;
1792 case GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY:
1793 return _mesa_is_desktop_gl(ctx) && ctx->Extensions.ARB_texture_multisample
1794 ? TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX : -1;
1795 default:
1796 return -1;
1797 }
1798 }
1799
1800 static enum value_type
1801 find_value_indexed(const char *func, GLenum pname, GLuint index, union value *v)
1802 {
1803 GET_CURRENT_CONTEXT(ctx);
1804
1805 switch (pname) {
1806
1807 case GL_BLEND:
1808 if (index >= ctx->Const.MaxDrawBuffers)
1809 goto invalid_value;
1810 if (!ctx->Extensions.EXT_draw_buffers2)
1811 goto invalid_enum;
1812 v->value_int = (ctx->Color.BlendEnabled >> index) & 1;
1813 return TYPE_INT;
1814
1815 case GL_BLEND_SRC:
1816 /* fall-through */
1817 case GL_BLEND_SRC_RGB:
1818 if (index >= ctx->Const.MaxDrawBuffers)
1819 goto invalid_value;
1820 if (!ctx->Extensions.ARB_draw_buffers_blend)
1821 goto invalid_enum;
1822 v->value_int = ctx->Color.Blend[index].SrcRGB;
1823 return TYPE_INT;
1824 case GL_BLEND_SRC_ALPHA:
1825 if (index >= ctx->Const.MaxDrawBuffers)
1826 goto invalid_value;
1827 if (!ctx->Extensions.ARB_draw_buffers_blend)
1828 goto invalid_enum;
1829 v->value_int = ctx->Color.Blend[index].SrcA;
1830 return TYPE_INT;
1831 case GL_BLEND_DST:
1832 /* fall-through */
1833 case GL_BLEND_DST_RGB:
1834 if (index >= ctx->Const.MaxDrawBuffers)
1835 goto invalid_value;
1836 if (!ctx->Extensions.ARB_draw_buffers_blend)
1837 goto invalid_enum;
1838 v->value_int = ctx->Color.Blend[index].DstRGB;
1839 return TYPE_INT;
1840 case GL_BLEND_DST_ALPHA:
1841 if (index >= ctx->Const.MaxDrawBuffers)
1842 goto invalid_value;
1843 if (!ctx->Extensions.ARB_draw_buffers_blend)
1844 goto invalid_enum;
1845 v->value_int = ctx->Color.Blend[index].DstA;
1846 return TYPE_INT;
1847 case GL_BLEND_EQUATION_RGB:
1848 if (index >= ctx->Const.MaxDrawBuffers)
1849 goto invalid_value;
1850 if (!ctx->Extensions.ARB_draw_buffers_blend)
1851 goto invalid_enum;
1852 v->value_int = ctx->Color.Blend[index].EquationRGB;
1853 return TYPE_INT;
1854 case GL_BLEND_EQUATION_ALPHA:
1855 if (index >= ctx->Const.MaxDrawBuffers)
1856 goto invalid_value;
1857 if (!ctx->Extensions.ARB_draw_buffers_blend)
1858 goto invalid_enum;
1859 v->value_int = ctx->Color.Blend[index].EquationA;
1860 return TYPE_INT;
1861
1862 case GL_COLOR_WRITEMASK:
1863 if (index >= ctx->Const.MaxDrawBuffers)
1864 goto invalid_value;
1865 if (!ctx->Extensions.EXT_draw_buffers2)
1866 goto invalid_enum;
1867 v->value_int_4[0] = ctx->Color.ColorMask[index][RCOMP] ? 1 : 0;
1868 v->value_int_4[1] = ctx->Color.ColorMask[index][GCOMP] ? 1 : 0;
1869 v->value_int_4[2] = ctx->Color.ColorMask[index][BCOMP] ? 1 : 0;
1870 v->value_int_4[3] = ctx->Color.ColorMask[index][ACOMP] ? 1 : 0;
1871 return TYPE_INT_4;
1872
1873 case GL_SCISSOR_BOX:
1874 if (index >= ctx->Const.MaxViewports)
1875 goto invalid_value;
1876 v->value_int_4[0] = ctx->Scissor.ScissorArray[index].X;
1877 v->value_int_4[1] = ctx->Scissor.ScissorArray[index].Y;
1878 v->value_int_4[2] = ctx->Scissor.ScissorArray[index].Width;
1879 v->value_int_4[3] = ctx->Scissor.ScissorArray[index].Height;
1880 return TYPE_INT_4;
1881
1882 case GL_VIEWPORT:
1883 if (index >= ctx->Const.MaxViewports)
1884 goto invalid_value;
1885 v->value_float_4[0] = ctx->ViewportArray[index].X;
1886 v->value_float_4[1] = ctx->ViewportArray[index].Y;
1887 v->value_float_4[2] = ctx->ViewportArray[index].Width;
1888 v->value_float_4[3] = ctx->ViewportArray[index].Height;
1889 return TYPE_FLOAT_4;
1890
1891 case GL_DEPTH_RANGE:
1892 if (index >= ctx->Const.MaxViewports)
1893 goto invalid_value;
1894 v->value_double_2[0] = ctx->ViewportArray[index].Near;
1895 v->value_double_2[1] = ctx->ViewportArray[index].Far;
1896 return TYPE_DOUBLEN_2;
1897
1898 case GL_TRANSFORM_FEEDBACK_BUFFER_START:
1899 if (index >= ctx->Const.MaxTransformFeedbackBuffers)
1900 goto invalid_value;
1901 if (!ctx->Extensions.EXT_transform_feedback)
1902 goto invalid_enum;
1903 v->value_int64 = ctx->TransformFeedback.CurrentObject->Offset[index];
1904 return TYPE_INT64;
1905
1906 case GL_TRANSFORM_FEEDBACK_BUFFER_SIZE:
1907 if (index >= ctx->Const.MaxTransformFeedbackBuffers)
1908 goto invalid_value;
1909 if (!ctx->Extensions.EXT_transform_feedback)
1910 goto invalid_enum;
1911 v->value_int64
1912 = ctx->TransformFeedback.CurrentObject->RequestedSize[index];
1913 return TYPE_INT64;
1914
1915 case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING:
1916 if (index >= ctx->Const.MaxTransformFeedbackBuffers)
1917 goto invalid_value;
1918 if (!ctx->Extensions.EXT_transform_feedback)
1919 goto invalid_enum;
1920 v->value_int = ctx->TransformFeedback.CurrentObject->BufferNames[index];
1921 return TYPE_INT;
1922
1923 case GL_UNIFORM_BUFFER_BINDING:
1924 if (index >= ctx->Const.MaxUniformBufferBindings)
1925 goto invalid_value;
1926 if (!ctx->Extensions.ARB_uniform_buffer_object)
1927 goto invalid_enum;
1928 v->value_int = ctx->UniformBufferBindings[index].BufferObject->Name;
1929 return TYPE_INT;
1930
1931 case GL_UNIFORM_BUFFER_START:
1932 if (index >= ctx->Const.MaxUniformBufferBindings)
1933 goto invalid_value;
1934 if (!ctx->Extensions.ARB_uniform_buffer_object)
1935 goto invalid_enum;
1936 v->value_int = ctx->UniformBufferBindings[index].Offset;
1937 return TYPE_INT;
1938
1939 case GL_UNIFORM_BUFFER_SIZE:
1940 if (index >= ctx->Const.MaxUniformBufferBindings)
1941 goto invalid_value;
1942 if (!ctx->Extensions.ARB_uniform_buffer_object)
1943 goto invalid_enum;
1944 v->value_int = ctx->UniformBufferBindings[index].Size;
1945 return TYPE_INT;
1946
1947 /* ARB_texture_multisample / GL3.2 */
1948 case GL_SAMPLE_MASK_VALUE:
1949 if (index != 0)
1950 goto invalid_value;
1951 if (!ctx->Extensions.ARB_texture_multisample)
1952 goto invalid_enum;
1953 v->value_int = ctx->Multisample.SampleMaskValue;
1954 return TYPE_INT;
1955
1956 case GL_ATOMIC_COUNTER_BUFFER_BINDING:
1957 if (!ctx->Extensions.ARB_shader_atomic_counters)
1958 goto invalid_enum;
1959 if (index >= ctx->Const.MaxAtomicBufferBindings)
1960 goto invalid_value;
1961 v->value_int = ctx->AtomicBufferBindings[index].BufferObject->Name;
1962 return TYPE_INT;
1963
1964 case GL_ATOMIC_COUNTER_BUFFER_START:
1965 if (!ctx->Extensions.ARB_shader_atomic_counters)
1966 goto invalid_enum;
1967 if (index >= ctx->Const.MaxAtomicBufferBindings)
1968 goto invalid_value;
1969 v->value_int64 = ctx->AtomicBufferBindings[index].Offset;
1970 return TYPE_INT64;
1971
1972 case GL_ATOMIC_COUNTER_BUFFER_SIZE:
1973 if (!ctx->Extensions.ARB_shader_atomic_counters)
1974 goto invalid_enum;
1975 if (index >= ctx->Const.MaxAtomicBufferBindings)
1976 goto invalid_value;
1977 v->value_int64 = ctx->AtomicBufferBindings[index].Size;
1978 return TYPE_INT64;
1979
1980 case GL_VERTEX_BINDING_DIVISOR:
1981 if (!_mesa_is_desktop_gl(ctx) || !ctx->Extensions.ARB_instanced_arrays)
1982 goto invalid_enum;
1983 if (index >= ctx->Const.Program[MESA_SHADER_VERTEX].MaxAttribs)
1984 goto invalid_value;
1985 v->value_int = ctx->Array.VAO->VertexBinding[VERT_ATTRIB_GENERIC(index)].InstanceDivisor;
1986 return TYPE_INT;
1987
1988 case GL_VERTEX_BINDING_OFFSET:
1989 if (!_mesa_is_desktop_gl(ctx))
1990 goto invalid_enum;
1991 if (index >= ctx->Const.Program[MESA_SHADER_VERTEX].MaxAttribs)
1992 goto invalid_value;
1993 v->value_int = ctx->Array.VAO->VertexBinding[VERT_ATTRIB_GENERIC(index)].Offset;
1994 return TYPE_INT;
1995
1996 case GL_VERTEX_BINDING_STRIDE:
1997 if (!_mesa_is_desktop_gl(ctx))
1998 goto invalid_enum;
1999 if (index >= ctx->Const.Program[MESA_SHADER_VERTEX].MaxAttribs)
2000 goto invalid_value;
2001 v->value_int = ctx->Array.VAO->VertexBinding[VERT_ATTRIB_GENERIC(index)].Stride;
2002 return TYPE_INT;
2003
2004 /* ARB_shader_image_load_store */
2005 case GL_IMAGE_BINDING_NAME: {
2006 struct gl_texture_object *t;
2007
2008 if (!ctx->Extensions.ARB_shader_image_load_store)
2009 goto invalid_enum;
2010 if (index >= ctx->Const.MaxImageUnits)
2011 goto invalid_value;
2012
2013 t = ctx->ImageUnits[index].TexObj;
2014 v->value_int = (t ? t->Name : 0);
2015 return TYPE_INT;
2016 }
2017
2018 case GL_IMAGE_BINDING_LEVEL:
2019 if (!ctx->Extensions.ARB_shader_image_load_store)
2020 goto invalid_enum;
2021 if (index >= ctx->Const.MaxImageUnits)
2022 goto invalid_value;
2023
2024 v->value_int = ctx->ImageUnits[index].Level;
2025 return TYPE_INT;
2026
2027 case GL_IMAGE_BINDING_LAYERED:
2028 if (!ctx->Extensions.ARB_shader_image_load_store)
2029 goto invalid_enum;
2030 if (index >= ctx->Const.MaxImageUnits)
2031 goto invalid_value;
2032
2033 v->value_int = ctx->ImageUnits[index].Layered;
2034 return TYPE_INT;
2035
2036 case GL_IMAGE_BINDING_LAYER:
2037 if (!ctx->Extensions.ARB_shader_image_load_store)
2038 goto invalid_enum;
2039 if (index >= ctx->Const.MaxImageUnits)
2040 goto invalid_value;
2041
2042 v->value_int = ctx->ImageUnits[index].Layer;
2043 return TYPE_INT;
2044
2045 case GL_IMAGE_BINDING_ACCESS:
2046 if (!ctx->Extensions.ARB_shader_image_load_store)
2047 goto invalid_enum;
2048 if (index >= ctx->Const.MaxImageUnits)
2049 goto invalid_value;
2050
2051 v->value_int = ctx->ImageUnits[index].Access;
2052 return TYPE_INT;
2053
2054 case GL_IMAGE_BINDING_FORMAT:
2055 if (!ctx->Extensions.ARB_shader_image_load_store)
2056 goto invalid_enum;
2057 if (index >= ctx->Const.MaxImageUnits)
2058 goto invalid_value;
2059
2060 v->value_int = ctx->ImageUnits[index].Format;
2061 return TYPE_INT;
2062
2063 /* ARB_direct_state_access */
2064 case GL_TEXTURE_BINDING_1D:
2065 case GL_TEXTURE_BINDING_1D_ARRAY:
2066 case GL_TEXTURE_BINDING_2D:
2067 case GL_TEXTURE_BINDING_2D_ARRAY:
2068 case GL_TEXTURE_BINDING_2D_MULTISAMPLE:
2069 case GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY:
2070 case GL_TEXTURE_BINDING_3D:
2071 case GL_TEXTURE_BINDING_BUFFER:
2072 case GL_TEXTURE_BINDING_CUBE_MAP:
2073 case GL_TEXTURE_BINDING_CUBE_MAP_ARRAY:
2074 case GL_TEXTURE_BINDING_RECTANGLE: {
2075 int target;
2076
2077 if (ctx->API != API_OPENGL_CORE)
2078 goto invalid_enum;
2079 target = tex_binding_to_index(ctx, pname);
2080 if (target < 0)
2081 goto invalid_enum;
2082 if (index >= _mesa_max_tex_unit(ctx))
2083 goto invalid_value;
2084
2085 v->value_int = ctx->Texture.Unit[index].CurrentTex[target]->Name;
2086 return TYPE_INT;
2087 }
2088
2089 case GL_SAMPLER_BINDING: {
2090 struct gl_sampler_object *samp;
2091
2092 if (ctx->API != API_OPENGL_CORE)
2093 goto invalid_enum;
2094 if (index >= _mesa_max_tex_unit(ctx))
2095 goto invalid_value;
2096
2097 samp = ctx->Texture.Unit[index].Sampler;
2098 v->value_int = samp ? samp->Name : 0;
2099 return TYPE_INT;
2100 }
2101
2102 case GL_MAX_COMPUTE_WORK_GROUP_COUNT:
2103 if (!_mesa_has_compute_shaders(ctx))
2104 goto invalid_enum;
2105 if (index >= 3)
2106 goto invalid_value;
2107 v->value_int = ctx->Const.MaxComputeWorkGroupCount[index];
2108 return TYPE_INT;
2109
2110 case GL_MAX_COMPUTE_WORK_GROUP_SIZE:
2111 if (!_mesa_has_compute_shaders(ctx))
2112 goto invalid_enum;
2113 if (index >= 3)
2114 goto invalid_value;
2115 v->value_int = ctx->Const.MaxComputeWorkGroupSize[index];
2116 return TYPE_INT;
2117 }
2118
2119 invalid_enum:
2120 _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func,
2121 _mesa_enum_to_string(pname));
2122 return TYPE_INVALID;
2123 invalid_value:
2124 _mesa_error(ctx, GL_INVALID_VALUE, "%s(pname=%s)", func,
2125 _mesa_enum_to_string(pname));
2126 return TYPE_INVALID;
2127 }
2128
2129 void GLAPIENTRY
2130 _mesa_GetBooleani_v( GLenum pname, GLuint index, GLboolean *params )
2131 {
2132 union value v;
2133 enum value_type type =
2134 find_value_indexed("glGetBooleani_v", pname, index, &v);
2135
2136 switch (type) {
2137 case TYPE_INT:
2138 params[0] = INT_TO_BOOLEAN(v.value_int);
2139 break;
2140 case TYPE_INT_4:
2141 params[0] = INT_TO_BOOLEAN(v.value_int_4[0]);
2142 params[1] = INT_TO_BOOLEAN(v.value_int_4[1]);
2143 params[2] = INT_TO_BOOLEAN(v.value_int_4[2]);
2144 params[3] = INT_TO_BOOLEAN(v.value_int_4[3]);
2145 break;
2146 case TYPE_INT64:
2147 params[0] = INT64_TO_BOOLEAN(v.value_int64);
2148 break;
2149 default:
2150 ; /* nothing - GL error was recorded */
2151 }
2152 }
2153
2154 void GLAPIENTRY
2155 _mesa_GetIntegeri_v( GLenum pname, GLuint index, GLint *params )
2156 {
2157 union value v;
2158 enum value_type type =
2159 find_value_indexed("glGetIntegeri_v", pname, index, &v);
2160
2161 switch (type) {
2162 case TYPE_FLOAT_4:
2163 case TYPE_FLOATN_4:
2164 params[3] = IROUND(v.value_float_4[3]);
2165 case TYPE_FLOAT_3:
2166 case TYPE_FLOATN_3:
2167 params[2] = IROUND(v.value_float_4[2]);
2168 case TYPE_FLOAT_2:
2169 case TYPE_FLOATN_2:
2170 params[1] = IROUND(v.value_float_4[1]);
2171 case TYPE_FLOAT:
2172 case TYPE_FLOATN:
2173 params[0] = IROUND(v.value_float_4[0]);
2174 break;
2175
2176 case TYPE_DOUBLEN_2:
2177 params[1] = IROUND(v.value_double_2[1]);
2178 case TYPE_DOUBLEN:
2179 params[0] = IROUND(v.value_double_2[0]);
2180 break;
2181
2182 case TYPE_INT:
2183 params[0] = v.value_int;
2184 break;
2185 case TYPE_INT_4:
2186 params[0] = v.value_int_4[0];
2187 params[1] = v.value_int_4[1];
2188 params[2] = v.value_int_4[2];
2189 params[3] = v.value_int_4[3];
2190 break;
2191 case TYPE_INT64:
2192 params[0] = INT64_TO_INT(v.value_int64);
2193 break;
2194 default:
2195 ; /* nothing - GL error was recorded */
2196 }
2197 }
2198
2199 void GLAPIENTRY
2200 _mesa_GetInteger64i_v( GLenum pname, GLuint index, GLint64 *params )
2201 {
2202 union value v;
2203 enum value_type type =
2204 find_value_indexed("glGetInteger64i_v", pname, index, &v);
2205
2206 switch (type) {
2207 case TYPE_INT:
2208 params[0] = v.value_int;
2209 break;
2210 case TYPE_INT_4:
2211 params[0] = v.value_int_4[0];
2212 params[1] = v.value_int_4[1];
2213 params[2] = v.value_int_4[2];
2214 params[3] = v.value_int_4[3];
2215 break;
2216 case TYPE_INT64:
2217 params[0] = v.value_int64;
2218 break;
2219 default:
2220 ; /* nothing - GL error was recorded */
2221 }
2222 }
2223
2224 void GLAPIENTRY
2225 _mesa_GetFloati_v(GLenum pname, GLuint index, GLfloat *params)
2226 {
2227 int i;
2228 GLmatrix *m;
2229 union value v;
2230 enum value_type type =
2231 find_value_indexed("glGetFloati_v", pname, index, &v);
2232
2233 switch (type) {
2234 case TYPE_FLOAT_4:
2235 case TYPE_FLOATN_4:
2236 params[3] = v.value_float_4[3];
2237 case TYPE_FLOAT_3:
2238 case TYPE_FLOATN_3:
2239 params[2] = v.value_float_4[2];
2240 case TYPE_FLOAT_2:
2241 case TYPE_FLOATN_2:
2242 params[1] = v.value_float_4[1];
2243 case TYPE_FLOAT:
2244 case TYPE_FLOATN:
2245 params[0] = v.value_float_4[0];
2246 break;
2247
2248 case TYPE_DOUBLEN_2:
2249 params[1] = (GLfloat) v.value_double_2[1];
2250 case TYPE_DOUBLEN:
2251 params[0] = (GLfloat) v.value_double_2[0];
2252 break;
2253
2254 case TYPE_INT_4:
2255 params[3] = (GLfloat) v.value_int_4[3];
2256 case TYPE_INT_3:
2257 params[2] = (GLfloat) v.value_int_4[2];
2258 case TYPE_INT_2:
2259 case TYPE_ENUM_2:
2260 params[1] = (GLfloat) v.value_int_4[1];
2261 case TYPE_INT:
2262 case TYPE_ENUM:
2263 params[0] = (GLfloat) v.value_int_4[0];
2264 break;
2265
2266 case TYPE_INT_N:
2267 for (i = 0; i < v.value_int_n.n; i++)
2268 params[i] = INT_TO_FLOAT(v.value_int_n.ints[i]);
2269 break;
2270
2271 case TYPE_INT64:
2272 params[0] = (GLfloat) v.value_int64;
2273 break;
2274
2275 case TYPE_BOOLEAN:
2276 params[0] = BOOLEAN_TO_FLOAT(v.value_bool);
2277 break;
2278
2279 case TYPE_MATRIX:
2280 m = *(GLmatrix **) &v;
2281 for (i = 0; i < 16; i++)
2282 params[i] = m->m[i];
2283 break;
2284
2285 case TYPE_MATRIX_T:
2286 m = *(GLmatrix **) &v;
2287 for (i = 0; i < 16; i++)
2288 params[i] = m->m[transpose[i]];
2289 break;
2290
2291 default:
2292 ;
2293 }
2294 }
2295
2296 void GLAPIENTRY
2297 _mesa_GetDoublei_v(GLenum pname, GLuint index, GLdouble *params)
2298 {
2299 int i;
2300 GLmatrix *m;
2301 union value v;
2302 enum value_type type =
2303 find_value_indexed("glGetDoublei_v", pname, index, &v);
2304
2305 switch (type) {
2306 case TYPE_FLOAT_4:
2307 case TYPE_FLOATN_4:
2308 params[3] = (GLdouble) v.value_float_4[3];
2309 case TYPE_FLOAT_3:
2310 case TYPE_FLOATN_3:
2311 params[2] = (GLdouble) v.value_float_4[2];
2312 case TYPE_FLOAT_2:
2313 case TYPE_FLOATN_2:
2314 params[1] = (GLdouble) v.value_float_4[1];
2315 case TYPE_FLOAT:
2316 case TYPE_FLOATN:
2317 params[0] = (GLdouble) v.value_float_4[0];
2318 break;
2319
2320 case TYPE_DOUBLEN_2:
2321 params[1] = v.value_double_2[1];
2322 case TYPE_DOUBLEN:
2323 params[0] = v.value_double_2[0];
2324 break;
2325
2326 case TYPE_INT_4:
2327 params[3] = (GLdouble) v.value_int_4[3];
2328 case TYPE_INT_3:
2329 params[2] = (GLdouble) v.value_int_4[2];
2330 case TYPE_INT_2:
2331 case TYPE_ENUM_2:
2332 params[1] = (GLdouble) v.value_int_4[1];
2333 case TYPE_INT:
2334 case TYPE_ENUM:
2335 params[0] = (GLdouble) v.value_int_4[0];
2336 break;
2337
2338 case TYPE_INT_N:
2339 for (i = 0; i < v.value_int_n.n; i++)
2340 params[i] = (GLdouble) INT_TO_FLOAT(v.value_int_n.ints[i]);
2341 break;
2342
2343 case TYPE_INT64:
2344 params[0] = (GLdouble) v.value_int64;
2345 break;
2346
2347 case TYPE_BOOLEAN:
2348 params[0] = (GLdouble) BOOLEAN_TO_FLOAT(v.value_bool);
2349 break;
2350
2351 case TYPE_MATRIX:
2352 m = *(GLmatrix **) &v;
2353 for (i = 0; i < 16; i++)
2354 params[i] = (GLdouble) m->m[i];
2355 break;
2356
2357 case TYPE_MATRIX_T:
2358 m = *(GLmatrix **) &v;
2359 for (i = 0; i < 16; i++)
2360 params[i] = (GLdouble) m->m[transpose[i]];
2361 break;
2362
2363 default:
2364 ;
2365 }
2366 }
2367
2368 void GLAPIENTRY
2369 _mesa_GetFixedv(GLenum pname, GLfixed *params)
2370 {
2371 const struct value_desc *d;
2372 union value v;
2373 GLmatrix *m;
2374 int shift, i;
2375 void *p;
2376
2377 d = find_value("glGetDoublev", pname, &p, &v);
2378 switch (d->type) {
2379 case TYPE_INVALID:
2380 break;
2381 case TYPE_CONST:
2382 params[0] = INT_TO_FIXED(d->offset);
2383 break;
2384
2385 case TYPE_FLOAT_4:
2386 case TYPE_FLOATN_4:
2387 params[3] = FLOAT_TO_FIXED(((GLfloat *) p)[3]);
2388 case TYPE_FLOAT_3:
2389 case TYPE_FLOATN_3:
2390 params[2] = FLOAT_TO_FIXED(((GLfloat *) p)[2]);
2391 case TYPE_FLOAT_2:
2392 case TYPE_FLOATN_2:
2393 params[1] = FLOAT_TO_FIXED(((GLfloat *) p)[1]);
2394 case TYPE_FLOAT:
2395 case TYPE_FLOATN:
2396 params[0] = FLOAT_TO_FIXED(((GLfloat *) p)[0]);
2397 break;
2398
2399 case TYPE_DOUBLEN_2:
2400 params[1] = FLOAT_TO_FIXED(((GLdouble *) p)[1]);
2401 case TYPE_DOUBLEN:
2402 params[0] = FLOAT_TO_FIXED(((GLdouble *) p)[0]);
2403 break;
2404
2405 case TYPE_INT_4:
2406 params[3] = INT_TO_FIXED(((GLint *) p)[3]);
2407 case TYPE_INT_3:
2408 params[2] = INT_TO_FIXED(((GLint *) p)[2]);
2409 case TYPE_INT_2:
2410 case TYPE_ENUM_2:
2411 params[1] = INT_TO_FIXED(((GLint *) p)[1]);
2412 case TYPE_INT:
2413 case TYPE_ENUM:
2414 params[0] = INT_TO_FIXED(((GLint *) p)[0]);
2415 break;
2416
2417 case TYPE_INT_N:
2418 for (i = 0; i < v.value_int_n.n; i++)
2419 params[i] = INT_TO_FIXED(v.value_int_n.ints[i]);
2420 break;
2421
2422 case TYPE_INT64:
2423 params[0] = ((GLint64 *) p)[0];
2424 break;
2425
2426 case TYPE_BOOLEAN:
2427 params[0] = BOOLEAN_TO_FIXED(((GLboolean*) p)[0]);
2428 break;
2429
2430 case TYPE_MATRIX:
2431 m = *(GLmatrix **) p;
2432 for (i = 0; i < 16; i++)
2433 params[i] = FLOAT_TO_FIXED(m->m[i]);
2434 break;
2435
2436 case TYPE_MATRIX_T:
2437 m = *(GLmatrix **) p;
2438 for (i = 0; i < 16; i++)
2439 params[i] = FLOAT_TO_FIXED(m->m[transpose[i]]);
2440 break;
2441
2442 case TYPE_BIT_0:
2443 case TYPE_BIT_1:
2444 case TYPE_BIT_2:
2445 case TYPE_BIT_3:
2446 case TYPE_BIT_4:
2447 case TYPE_BIT_5:
2448 case TYPE_BIT_6:
2449 case TYPE_BIT_7:
2450 shift = d->type - TYPE_BIT_0;
2451 params[0] = BOOLEAN_TO_FIXED((*(GLbitfield *) p >> shift) & 1);
2452 break;
2453 }
2454 }