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mesa/cs: Support GL_DISPATCH_INDIRECT_BUFFER
[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 v->value_int = samp ? samp->Name : 0;
998 }
999 break;
1000 /* GL_ARB_uniform_buffer_object */
1001 case GL_UNIFORM_BUFFER_BINDING:
1002 v->value_int = ctx->UniformBuffer->Name;
1003 break;
1004 /* GL_ARB_timer_query */
1005 case GL_TIMESTAMP:
1006 if (ctx->Driver.GetTimestamp) {
1007 v->value_int64 = ctx->Driver.GetTimestamp(ctx);
1008 }
1009 else {
1010 _mesa_problem(ctx, "driver doesn't implement GetTimestamp");
1011 }
1012 break;
1013 /* GL_KHR_DEBUG */
1014 case GL_DEBUG_LOGGED_MESSAGES:
1015 case GL_DEBUG_NEXT_LOGGED_MESSAGE_LENGTH:
1016 case GL_DEBUG_GROUP_STACK_DEPTH:
1017 v->value_int = _mesa_get_debug_state_int(ctx, d->pname);
1018 break;
1019 /* GL_ARB_shader_atomic_counters */
1020 case GL_ATOMIC_COUNTER_BUFFER_BINDING:
1021 if (ctx->AtomicBuffer) {
1022 v->value_int = ctx->AtomicBuffer->Name;
1023 } else {
1024 v->value_int = 0;
1025 }
1026 break;
1027 /* GL_ARB_draw_indirect */
1028 case GL_DRAW_INDIRECT_BUFFER_BINDING:
1029 v->value_int = ctx->DrawIndirectBuffer->Name;
1030 break;
1031 /* GL_ARB_separate_shader_objects */
1032 case GL_PROGRAM_PIPELINE_BINDING:
1033 if (ctx->Pipeline.Current) {
1034 v->value_int = ctx->Pipeline.Current->Name;
1035 } else {
1036 v->value_int = 0;
1037 }
1038 break;
1039 /* GL_ARB_compute_shader */
1040 case GL_DISPATCH_INDIRECT_BUFFER_BINDING:
1041 v->value_int = ctx->DispatchIndirectBuffer->Name;
1042 break;
1043 }
1044 }
1045
1046 /**
1047 * Check extra constraints on a struct value_desc descriptor
1048 *
1049 * If a struct value_desc has a non-NULL extra pointer, it means that
1050 * there are a number of extra constraints to check or actions to
1051 * perform. The extras is just an integer array where each integer
1052 * encode different constraints or actions.
1053 *
1054 * \param ctx current context
1055 * \param func name of calling glGet*v() function for error reporting
1056 * \param d the struct value_desc that has the extra constraints
1057 *
1058 * \return GL_FALSE if all of the constraints were not satisfied,
1059 * otherwise GL_TRUE.
1060 */
1061 static GLboolean
1062 check_extra(struct gl_context *ctx, const char *func, const struct value_desc *d)
1063 {
1064 const GLuint version = ctx->Version;
1065 GLboolean api_check = GL_FALSE;
1066 GLboolean api_found = GL_FALSE;
1067 const int *e;
1068
1069 for (e = d->extra; *e != EXTRA_END; e++) {
1070 switch (*e) {
1071 case EXTRA_VERSION_30:
1072 api_check = GL_TRUE;
1073 if (version >= 30)
1074 api_found = GL_TRUE;
1075 break;
1076 case EXTRA_VERSION_31:
1077 api_check = GL_TRUE;
1078 if (version >= 31)
1079 api_found = GL_TRUE;
1080 break;
1081 case EXTRA_VERSION_32:
1082 api_check = GL_TRUE;
1083 if (version >= 32)
1084 api_found = GL_TRUE;
1085 break;
1086 case EXTRA_NEW_FRAG_CLAMP:
1087 if (ctx->NewState & (_NEW_BUFFERS | _NEW_FRAG_CLAMP))
1088 _mesa_update_state(ctx);
1089 break;
1090 case EXTRA_API_ES2:
1091 api_check = GL_TRUE;
1092 if (ctx->API == API_OPENGLES2)
1093 api_found = GL_TRUE;
1094 break;
1095 case EXTRA_API_ES3:
1096 api_check = GL_TRUE;
1097 if (_mesa_is_gles3(ctx))
1098 api_found = GL_TRUE;
1099 break;
1100 case EXTRA_API_ES31:
1101 api_check = GL_TRUE;
1102 if (_mesa_is_gles31(ctx))
1103 api_found = GL_TRUE;
1104 break;
1105 case EXTRA_API_GL:
1106 api_check = GL_TRUE;
1107 if (_mesa_is_desktop_gl(ctx))
1108 api_found = GL_TRUE;
1109 break;
1110 case EXTRA_API_GL_CORE:
1111 api_check = GL_TRUE;
1112 if (ctx->API == API_OPENGL_CORE)
1113 api_found = GL_TRUE;
1114 break;
1115 case EXTRA_NEW_BUFFERS:
1116 if (ctx->NewState & _NEW_BUFFERS)
1117 _mesa_update_state(ctx);
1118 break;
1119 case EXTRA_FLUSH_CURRENT:
1120 FLUSH_CURRENT(ctx, 0);
1121 break;
1122 case EXTRA_VALID_DRAW_BUFFER:
1123 if (d->pname - GL_DRAW_BUFFER0_ARB >= ctx->Const.MaxDrawBuffers) {
1124 _mesa_error(ctx, GL_INVALID_OPERATION, "%s(draw buffer %u)",
1125 func, d->pname - GL_DRAW_BUFFER0_ARB);
1126 return GL_FALSE;
1127 }
1128 break;
1129 case EXTRA_VALID_TEXTURE_UNIT:
1130 if (ctx->Texture.CurrentUnit >= ctx->Const.MaxTextureCoordUnits) {
1131 _mesa_error(ctx, GL_INVALID_OPERATION, "%s(texture %u)",
1132 func, ctx->Texture.CurrentUnit);
1133 return GL_FALSE;
1134 }
1135 break;
1136 case EXTRA_VALID_CLIP_DISTANCE:
1137 if (d->pname - GL_CLIP_DISTANCE0 >= ctx->Const.MaxClipPlanes) {
1138 _mesa_error(ctx, GL_INVALID_ENUM, "%s(clip distance %u)",
1139 func, d->pname - GL_CLIP_DISTANCE0);
1140 return GL_FALSE;
1141 }
1142 break;
1143 case EXTRA_GLSL_130:
1144 api_check = GL_TRUE;
1145 if (ctx->Const.GLSLVersion >= 130)
1146 api_found = GL_TRUE;
1147 break;
1148 case EXTRA_EXT_UBO_GS4:
1149 api_check = GL_TRUE;
1150 api_found = (ctx->Extensions.ARB_uniform_buffer_object &&
1151 _mesa_has_geometry_shaders(ctx));
1152 break;
1153 case EXTRA_EXT_ATOMICS_GS4:
1154 api_check = GL_TRUE;
1155 api_found = (ctx->Extensions.ARB_shader_atomic_counters &&
1156 _mesa_has_geometry_shaders(ctx));
1157 break;
1158 case EXTRA_EXT_SHADER_IMAGE_GS4:
1159 api_check = GL_TRUE;
1160 api_found = (ctx->Extensions.ARB_shader_image_load_store &&
1161 _mesa_has_geometry_shaders(ctx));
1162 break;
1163 case EXTRA_EXT_ATOMICS_TESS:
1164 api_check = GL_TRUE;
1165 api_found = ctx->Extensions.ARB_shader_atomic_counters &&
1166 _mesa_has_tessellation(ctx);
1167 break;
1168 case EXTRA_EXT_SHADER_IMAGE_TESS:
1169 api_check = GL_TRUE;
1170 api_found = ctx->Extensions.ARB_shader_image_load_store &&
1171 _mesa_has_tessellation(ctx);
1172 break;
1173 case EXTRA_END:
1174 break;
1175 default: /* *e is a offset into the extension struct */
1176 api_check = GL_TRUE;
1177 if (*(GLboolean *) ((char *) &ctx->Extensions + *e))
1178 api_found = GL_TRUE;
1179 break;
1180 }
1181 }
1182
1183 if (api_check && !api_found) {
1184 _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func,
1185 _mesa_enum_to_string(d->pname));
1186 return GL_FALSE;
1187 }
1188
1189 return GL_TRUE;
1190 }
1191
1192 static const struct value_desc error_value =
1193 { 0, 0, TYPE_INVALID, NO_OFFSET, NO_EXTRA };
1194
1195 /**
1196 * Find the struct value_desc corresponding to the enum 'pname'.
1197 *
1198 * We hash the enum value to get an index into the 'table' array,
1199 * which holds the index in the 'values' array of struct value_desc.
1200 * Once we've found the entry, we do the extra checks, if any, then
1201 * look up the value and return a pointer to it.
1202 *
1203 * If the value has to be computed (for example, it's the result of a
1204 * function call or we need to add 1 to it), we use the tmp 'v' to
1205 * store the result.
1206 *
1207 * \param func name of glGet*v() func for error reporting
1208 * \param pname the enum value we're looking up
1209 * \param p is were we return the pointer to the value
1210 * \param v a tmp union value variable in the calling glGet*v() function
1211 *
1212 * \return the struct value_desc corresponding to the enum or a struct
1213 * value_desc of TYPE_INVALID if not found. This lets the calling
1214 * glGet*v() function jump right into a switch statement and
1215 * handle errors there instead of having to check for NULL.
1216 */
1217 static const struct value_desc *
1218 find_value(const char *func, GLenum pname, void **p, union value *v)
1219 {
1220 GET_CURRENT_CONTEXT(ctx);
1221 struct gl_texture_unit *unit;
1222 int mask, hash;
1223 const struct value_desc *d;
1224 int api;
1225
1226 api = ctx->API;
1227 /* We index into the table_set[] list of per-API hash tables using the API's
1228 * value in the gl_api enum. Since GLES 3 doesn't have an API_OPENGL* enum
1229 * value since it's compatible with GLES2 its entry in table_set[] is at the
1230 * end.
1231 */
1232 STATIC_ASSERT(ARRAY_SIZE(table_set) == API_OPENGL_LAST + 3);
1233 if (_mesa_is_gles3(ctx)) {
1234 api = API_OPENGL_LAST + 1;
1235 }
1236 if (_mesa_is_gles31(ctx)) {
1237 api = API_OPENGL_LAST + 2;
1238 }
1239 mask = ARRAY_SIZE(table(api)) - 1;
1240 hash = (pname * prime_factor);
1241 while (1) {
1242 int idx = table(api)[hash & mask];
1243
1244 /* If the enum isn't valid, the hash walk ends with index 0,
1245 * pointing to the first entry of values[] which doesn't hold
1246 * any valid enum. */
1247 if (unlikely(idx == 0)) {
1248 _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func,
1249 _mesa_enum_to_string(pname));
1250 return &error_value;
1251 }
1252
1253 d = &values[idx];
1254 if (likely(d->pname == pname))
1255 break;
1256
1257 hash += prime_step;
1258 }
1259
1260 if (unlikely(d->extra && !check_extra(ctx, func, d)))
1261 return &error_value;
1262
1263 switch (d->location) {
1264 case LOC_BUFFER:
1265 *p = ((char *) ctx->DrawBuffer + d->offset);
1266 return d;
1267 case LOC_CONTEXT:
1268 *p = ((char *) ctx + d->offset);
1269 return d;
1270 case LOC_ARRAY:
1271 *p = ((char *) ctx->Array.VAO + d->offset);
1272 return d;
1273 case LOC_TEXUNIT:
1274 unit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
1275 *p = ((char *) unit + d->offset);
1276 return d;
1277 case LOC_CUSTOM:
1278 find_custom_value(ctx, d, v);
1279 *p = v;
1280 return d;
1281 default:
1282 assert(0);
1283 break;
1284 }
1285
1286 /* silence warning */
1287 return &error_value;
1288 }
1289
1290 static const int transpose[] = {
1291 0, 4, 8, 12,
1292 1, 5, 9, 13,
1293 2, 6, 10, 14,
1294 3, 7, 11, 15
1295 };
1296
1297 void GLAPIENTRY
1298 _mesa_GetBooleanv(GLenum pname, GLboolean *params)
1299 {
1300 const struct value_desc *d;
1301 union value v;
1302 GLmatrix *m;
1303 int shift, i;
1304 void *p;
1305
1306 d = find_value("glGetBooleanv", pname, &p, &v);
1307 switch (d->type) {
1308 case TYPE_INVALID:
1309 break;
1310 case TYPE_CONST:
1311 params[0] = INT_TO_BOOLEAN(d->offset);
1312 break;
1313
1314 case TYPE_FLOAT_4:
1315 case TYPE_FLOATN_4:
1316 params[3] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[3]);
1317 case TYPE_FLOAT_3:
1318 case TYPE_FLOATN_3:
1319 params[2] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[2]);
1320 case TYPE_FLOAT_2:
1321 case TYPE_FLOATN_2:
1322 params[1] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[1]);
1323 case TYPE_FLOAT:
1324 case TYPE_FLOATN:
1325 params[0] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[0]);
1326 break;
1327
1328 case TYPE_DOUBLEN_2:
1329 params[1] = FLOAT_TO_BOOLEAN(((GLdouble *) p)[1]);
1330 case TYPE_DOUBLEN:
1331 params[0] = FLOAT_TO_BOOLEAN(((GLdouble *) p)[0]);
1332 break;
1333
1334 case TYPE_INT_4:
1335 params[3] = INT_TO_BOOLEAN(((GLint *) p)[3]);
1336 case TYPE_INT_3:
1337 params[2] = INT_TO_BOOLEAN(((GLint *) p)[2]);
1338 case TYPE_INT_2:
1339 case TYPE_ENUM_2:
1340 params[1] = INT_TO_BOOLEAN(((GLint *) p)[1]);
1341 case TYPE_INT:
1342 case TYPE_ENUM:
1343 params[0] = INT_TO_BOOLEAN(((GLint *) p)[0]);
1344 break;
1345
1346 case TYPE_INT_N:
1347 for (i = 0; i < v.value_int_n.n; i++)
1348 params[i] = INT_TO_BOOLEAN(v.value_int_n.ints[i]);
1349 break;
1350
1351 case TYPE_INT64:
1352 params[0] = INT64_TO_BOOLEAN(((GLint64 *) p)[0]);
1353 break;
1354
1355 case TYPE_BOOLEAN:
1356 params[0] = ((GLboolean*) p)[0];
1357 break;
1358
1359 case TYPE_MATRIX:
1360 m = *(GLmatrix **) p;
1361 for (i = 0; i < 16; i++)
1362 params[i] = FLOAT_TO_BOOLEAN(m->m[i]);
1363 break;
1364
1365 case TYPE_MATRIX_T:
1366 m = *(GLmatrix **) p;
1367 for (i = 0; i < 16; i++)
1368 params[i] = FLOAT_TO_BOOLEAN(m->m[transpose[i]]);
1369 break;
1370
1371 case TYPE_BIT_0:
1372 case TYPE_BIT_1:
1373 case TYPE_BIT_2:
1374 case TYPE_BIT_3:
1375 case TYPE_BIT_4:
1376 case TYPE_BIT_5:
1377 case TYPE_BIT_6:
1378 case TYPE_BIT_7:
1379 shift = d->type - TYPE_BIT_0;
1380 params[0] = (*(GLbitfield *) p >> shift) & 1;
1381 break;
1382 }
1383 }
1384
1385 void GLAPIENTRY
1386 _mesa_GetFloatv(GLenum pname, GLfloat *params)
1387 {
1388 const struct value_desc *d;
1389 union value v;
1390 GLmatrix *m;
1391 int shift, i;
1392 void *p;
1393
1394 d = find_value("glGetFloatv", pname, &p, &v);
1395 switch (d->type) {
1396 case TYPE_INVALID:
1397 break;
1398 case TYPE_CONST:
1399 params[0] = (GLfloat) d->offset;
1400 break;
1401
1402 case TYPE_FLOAT_4:
1403 case TYPE_FLOATN_4:
1404 params[3] = ((GLfloat *) p)[3];
1405 case TYPE_FLOAT_3:
1406 case TYPE_FLOATN_3:
1407 params[2] = ((GLfloat *) p)[2];
1408 case TYPE_FLOAT_2:
1409 case TYPE_FLOATN_2:
1410 params[1] = ((GLfloat *) p)[1];
1411 case TYPE_FLOAT:
1412 case TYPE_FLOATN:
1413 params[0] = ((GLfloat *) p)[0];
1414 break;
1415
1416 case TYPE_DOUBLEN_2:
1417 params[1] = (GLfloat) (((GLdouble *) p)[1]);
1418 case TYPE_DOUBLEN:
1419 params[0] = (GLfloat) (((GLdouble *) p)[0]);
1420 break;
1421
1422 case TYPE_INT_4:
1423 params[3] = (GLfloat) (((GLint *) p)[3]);
1424 case TYPE_INT_3:
1425 params[2] = (GLfloat) (((GLint *) p)[2]);
1426 case TYPE_INT_2:
1427 case TYPE_ENUM_2:
1428 params[1] = (GLfloat) (((GLint *) p)[1]);
1429 case TYPE_INT:
1430 case TYPE_ENUM:
1431 params[0] = (GLfloat) (((GLint *) p)[0]);
1432 break;
1433
1434 case TYPE_INT_N:
1435 for (i = 0; i < v.value_int_n.n; i++)
1436 params[i] = INT_TO_FLOAT(v.value_int_n.ints[i]);
1437 break;
1438
1439 case TYPE_INT64:
1440 params[0] = (GLfloat) (((GLint64 *) p)[0]);
1441 break;
1442
1443 case TYPE_BOOLEAN:
1444 params[0] = BOOLEAN_TO_FLOAT(*(GLboolean*) p);
1445 break;
1446
1447 case TYPE_MATRIX:
1448 m = *(GLmatrix **) p;
1449 for (i = 0; i < 16; i++)
1450 params[i] = m->m[i];
1451 break;
1452
1453 case TYPE_MATRIX_T:
1454 m = *(GLmatrix **) p;
1455 for (i = 0; i < 16; i++)
1456 params[i] = m->m[transpose[i]];
1457 break;
1458
1459 case TYPE_BIT_0:
1460 case TYPE_BIT_1:
1461 case TYPE_BIT_2:
1462 case TYPE_BIT_3:
1463 case TYPE_BIT_4:
1464 case TYPE_BIT_5:
1465 case TYPE_BIT_6:
1466 case TYPE_BIT_7:
1467 shift = d->type - TYPE_BIT_0;
1468 params[0] = BOOLEAN_TO_FLOAT((*(GLbitfield *) p >> shift) & 1);
1469 break;
1470 }
1471 }
1472
1473 void GLAPIENTRY
1474 _mesa_GetIntegerv(GLenum pname, GLint *params)
1475 {
1476 const struct value_desc *d;
1477 union value v;
1478 GLmatrix *m;
1479 int shift, i;
1480 void *p;
1481
1482 d = find_value("glGetIntegerv", pname, &p, &v);
1483 switch (d->type) {
1484 case TYPE_INVALID:
1485 break;
1486 case TYPE_CONST:
1487 params[0] = d->offset;
1488 break;
1489
1490 case TYPE_FLOAT_4:
1491 params[3] = IROUND(((GLfloat *) p)[3]);
1492 case TYPE_FLOAT_3:
1493 params[2] = IROUND(((GLfloat *) p)[2]);
1494 case TYPE_FLOAT_2:
1495 params[1] = IROUND(((GLfloat *) p)[1]);
1496 case TYPE_FLOAT:
1497 params[0] = IROUND(((GLfloat *) p)[0]);
1498 break;
1499
1500 case TYPE_FLOATN_4:
1501 params[3] = FLOAT_TO_INT(((GLfloat *) p)[3]);
1502 case TYPE_FLOATN_3:
1503 params[2] = FLOAT_TO_INT(((GLfloat *) p)[2]);
1504 case TYPE_FLOATN_2:
1505 params[1] = FLOAT_TO_INT(((GLfloat *) p)[1]);
1506 case TYPE_FLOATN:
1507 params[0] = FLOAT_TO_INT(((GLfloat *) p)[0]);
1508 break;
1509
1510 case TYPE_DOUBLEN_2:
1511 params[1] = FLOAT_TO_INT(((GLdouble *) p)[1]);
1512 case TYPE_DOUBLEN:
1513 params[0] = FLOAT_TO_INT(((GLdouble *) p)[0]);
1514 break;
1515
1516 case TYPE_INT_4:
1517 params[3] = ((GLint *) p)[3];
1518 case TYPE_INT_3:
1519 params[2] = ((GLint *) p)[2];
1520 case TYPE_INT_2:
1521 case TYPE_ENUM_2:
1522 params[1] = ((GLint *) p)[1];
1523 case TYPE_INT:
1524 case TYPE_ENUM:
1525 params[0] = ((GLint *) p)[0];
1526 break;
1527
1528 case TYPE_INT_N:
1529 for (i = 0; i < v.value_int_n.n; i++)
1530 params[i] = v.value_int_n.ints[i];
1531 break;
1532
1533 case TYPE_INT64:
1534 params[0] = INT64_TO_INT(((GLint64 *) p)[0]);
1535 break;
1536
1537 case TYPE_BOOLEAN:
1538 params[0] = BOOLEAN_TO_INT(*(GLboolean*) p);
1539 break;
1540
1541 case TYPE_MATRIX:
1542 m = *(GLmatrix **) p;
1543 for (i = 0; i < 16; i++)
1544 params[i] = FLOAT_TO_INT(m->m[i]);
1545 break;
1546
1547 case TYPE_MATRIX_T:
1548 m = *(GLmatrix **) p;
1549 for (i = 0; i < 16; i++)
1550 params[i] = FLOAT_TO_INT(m->m[transpose[i]]);
1551 break;
1552
1553 case TYPE_BIT_0:
1554 case TYPE_BIT_1:
1555 case TYPE_BIT_2:
1556 case TYPE_BIT_3:
1557 case TYPE_BIT_4:
1558 case TYPE_BIT_5:
1559 case TYPE_BIT_6:
1560 case TYPE_BIT_7:
1561 shift = d->type - TYPE_BIT_0;
1562 params[0] = (*(GLbitfield *) p >> shift) & 1;
1563 break;
1564 }
1565 }
1566
1567 void GLAPIENTRY
1568 _mesa_GetInteger64v(GLenum pname, GLint64 *params)
1569 {
1570 const struct value_desc *d;
1571 union value v;
1572 GLmatrix *m;
1573 int shift, i;
1574 void *p;
1575
1576 d = find_value("glGetInteger64v", pname, &p, &v);
1577 switch (d->type) {
1578 case TYPE_INVALID:
1579 break;
1580 case TYPE_CONST:
1581 params[0] = d->offset;
1582 break;
1583
1584 case TYPE_FLOAT_4:
1585 params[3] = IROUND64(((GLfloat *) p)[3]);
1586 case TYPE_FLOAT_3:
1587 params[2] = IROUND64(((GLfloat *) p)[2]);
1588 case TYPE_FLOAT_2:
1589 params[1] = IROUND64(((GLfloat *) p)[1]);
1590 case TYPE_FLOAT:
1591 params[0] = IROUND64(((GLfloat *) p)[0]);
1592 break;
1593
1594 case TYPE_FLOATN_4:
1595 params[3] = FLOAT_TO_INT64(((GLfloat *) p)[3]);
1596 case TYPE_FLOATN_3:
1597 params[2] = FLOAT_TO_INT64(((GLfloat *) p)[2]);
1598 case TYPE_FLOATN_2:
1599 params[1] = FLOAT_TO_INT64(((GLfloat *) p)[1]);
1600 case TYPE_FLOATN:
1601 params[0] = FLOAT_TO_INT64(((GLfloat *) p)[0]);
1602 break;
1603
1604 case TYPE_DOUBLEN_2:
1605 params[1] = FLOAT_TO_INT64(((GLdouble *) p)[1]);
1606 case TYPE_DOUBLEN:
1607 params[0] = FLOAT_TO_INT64(((GLdouble *) p)[0]);
1608 break;
1609
1610 case TYPE_INT_4:
1611 params[3] = ((GLint *) p)[3];
1612 case TYPE_INT_3:
1613 params[2] = ((GLint *) p)[2];
1614 case TYPE_INT_2:
1615 case TYPE_ENUM_2:
1616 params[1] = ((GLint *) p)[1];
1617 case TYPE_INT:
1618 case TYPE_ENUM:
1619 params[0] = ((GLint *) p)[0];
1620 break;
1621
1622 case TYPE_INT_N:
1623 for (i = 0; i < v.value_int_n.n; i++)
1624 params[i] = INT_TO_BOOLEAN(v.value_int_n.ints[i]);
1625 break;
1626
1627 case TYPE_INT64:
1628 params[0] = ((GLint64 *) p)[0];
1629 break;
1630
1631 case TYPE_BOOLEAN:
1632 params[0] = ((GLboolean*) p)[0];
1633 break;
1634
1635 case TYPE_MATRIX:
1636 m = *(GLmatrix **) p;
1637 for (i = 0; i < 16; i++)
1638 params[i] = FLOAT_TO_INT64(m->m[i]);
1639 break;
1640
1641 case TYPE_MATRIX_T:
1642 m = *(GLmatrix **) p;
1643 for (i = 0; i < 16; i++)
1644 params[i] = FLOAT_TO_INT64(m->m[transpose[i]]);
1645 break;
1646
1647 case TYPE_BIT_0:
1648 case TYPE_BIT_1:
1649 case TYPE_BIT_2:
1650 case TYPE_BIT_3:
1651 case TYPE_BIT_4:
1652 case TYPE_BIT_5:
1653 case TYPE_BIT_6:
1654 case TYPE_BIT_7:
1655 shift = d->type - TYPE_BIT_0;
1656 params[0] = (*(GLbitfield *) p >> shift) & 1;
1657 break;
1658 }
1659 }
1660
1661 void GLAPIENTRY
1662 _mesa_GetDoublev(GLenum pname, GLdouble *params)
1663 {
1664 const struct value_desc *d;
1665 union value v;
1666 GLmatrix *m;
1667 int shift, i;
1668 void *p;
1669
1670 d = find_value("glGetDoublev", pname, &p, &v);
1671 switch (d->type) {
1672 case TYPE_INVALID:
1673 break;
1674 case TYPE_CONST:
1675 params[0] = d->offset;
1676 break;
1677
1678 case TYPE_FLOAT_4:
1679 case TYPE_FLOATN_4:
1680 params[3] = ((GLfloat *) p)[3];
1681 case TYPE_FLOAT_3:
1682 case TYPE_FLOATN_3:
1683 params[2] = ((GLfloat *) p)[2];
1684 case TYPE_FLOAT_2:
1685 case TYPE_FLOATN_2:
1686 params[1] = ((GLfloat *) p)[1];
1687 case TYPE_FLOAT:
1688 case TYPE_FLOATN:
1689 params[0] = ((GLfloat *) p)[0];
1690 break;
1691
1692 case TYPE_DOUBLEN_2:
1693 params[1] = ((GLdouble *) p)[1];
1694 case TYPE_DOUBLEN:
1695 params[0] = ((GLdouble *) p)[0];
1696 break;
1697
1698 case TYPE_INT_4:
1699 params[3] = ((GLint *) p)[3];
1700 case TYPE_INT_3:
1701 params[2] = ((GLint *) p)[2];
1702 case TYPE_INT_2:
1703 case TYPE_ENUM_2:
1704 params[1] = ((GLint *) p)[1];
1705 case TYPE_INT:
1706 case TYPE_ENUM:
1707 params[0] = ((GLint *) p)[0];
1708 break;
1709
1710 case TYPE_INT_N:
1711 for (i = 0; i < v.value_int_n.n; i++)
1712 params[i] = v.value_int_n.ints[i];
1713 break;
1714
1715 case TYPE_INT64:
1716 params[0] = (GLdouble) (((GLint64 *) p)[0]);
1717 break;
1718
1719 case TYPE_BOOLEAN:
1720 params[0] = *(GLboolean*) p;
1721 break;
1722
1723 case TYPE_MATRIX:
1724 m = *(GLmatrix **) p;
1725 for (i = 0; i < 16; i++)
1726 params[i] = m->m[i];
1727 break;
1728
1729 case TYPE_MATRIX_T:
1730 m = *(GLmatrix **) p;
1731 for (i = 0; i < 16; i++)
1732 params[i] = m->m[transpose[i]];
1733 break;
1734
1735 case TYPE_BIT_0:
1736 case TYPE_BIT_1:
1737 case TYPE_BIT_2:
1738 case TYPE_BIT_3:
1739 case TYPE_BIT_4:
1740 case TYPE_BIT_5:
1741 case TYPE_BIT_6:
1742 case TYPE_BIT_7:
1743 shift = d->type - TYPE_BIT_0;
1744 params[0] = (*(GLbitfield *) p >> shift) & 1;
1745 break;
1746 }
1747 }
1748
1749 /**
1750 * Convert a GL texture binding enum such as GL_TEXTURE_BINDING_2D
1751 * into the corresponding Mesa texture target index.
1752 * \return TEXTURE_x_INDEX or -1 if binding is invalid
1753 */
1754 static int
1755 tex_binding_to_index(const struct gl_context *ctx, GLenum binding)
1756 {
1757 switch (binding) {
1758 case GL_TEXTURE_BINDING_1D:
1759 return _mesa_is_desktop_gl(ctx) ? TEXTURE_1D_INDEX : -1;
1760 case GL_TEXTURE_BINDING_2D:
1761 return TEXTURE_2D_INDEX;
1762 case GL_TEXTURE_BINDING_3D:
1763 return ctx->API != API_OPENGLES ? TEXTURE_3D_INDEX : -1;
1764 case GL_TEXTURE_BINDING_CUBE_MAP:
1765 return ctx->Extensions.ARB_texture_cube_map
1766 ? TEXTURE_CUBE_INDEX : -1;
1767 case GL_TEXTURE_BINDING_RECTANGLE:
1768 return _mesa_is_desktop_gl(ctx) && ctx->Extensions.NV_texture_rectangle
1769 ? TEXTURE_RECT_INDEX : -1;
1770 case GL_TEXTURE_BINDING_1D_ARRAY:
1771 return _mesa_is_desktop_gl(ctx) && ctx->Extensions.EXT_texture_array
1772 ? TEXTURE_1D_ARRAY_INDEX : -1;
1773 case GL_TEXTURE_BINDING_2D_ARRAY:
1774 return (_mesa_is_desktop_gl(ctx) && ctx->Extensions.EXT_texture_array)
1775 || _mesa_is_gles3(ctx)
1776 ? TEXTURE_2D_ARRAY_INDEX : -1;
1777 case GL_TEXTURE_BINDING_BUFFER:
1778 return ctx->API == API_OPENGL_CORE &&
1779 ctx->Extensions.ARB_texture_buffer_object ?
1780 TEXTURE_BUFFER_INDEX : -1;
1781 case GL_TEXTURE_BINDING_CUBE_MAP_ARRAY:
1782 return _mesa_is_desktop_gl(ctx) && ctx->Extensions.ARB_texture_cube_map_array
1783 ? TEXTURE_CUBE_ARRAY_INDEX : -1;
1784 case GL_TEXTURE_BINDING_2D_MULTISAMPLE:
1785 return _mesa_is_desktop_gl(ctx) && ctx->Extensions.ARB_texture_multisample
1786 ? TEXTURE_2D_MULTISAMPLE_INDEX : -1;
1787 case GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY:
1788 return _mesa_is_desktop_gl(ctx) && ctx->Extensions.ARB_texture_multisample
1789 ? TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX : -1;
1790 default:
1791 return -1;
1792 }
1793 }
1794
1795 static enum value_type
1796 find_value_indexed(const char *func, GLenum pname, GLuint index, union value *v)
1797 {
1798 GET_CURRENT_CONTEXT(ctx);
1799
1800 switch (pname) {
1801
1802 case GL_BLEND:
1803 if (index >= ctx->Const.MaxDrawBuffers)
1804 goto invalid_value;
1805 if (!ctx->Extensions.EXT_draw_buffers2)
1806 goto invalid_enum;
1807 v->value_int = (ctx->Color.BlendEnabled >> index) & 1;
1808 return TYPE_INT;
1809
1810 case GL_BLEND_SRC:
1811 /* fall-through */
1812 case GL_BLEND_SRC_RGB:
1813 if (index >= ctx->Const.MaxDrawBuffers)
1814 goto invalid_value;
1815 if (!ctx->Extensions.ARB_draw_buffers_blend)
1816 goto invalid_enum;
1817 v->value_int = ctx->Color.Blend[index].SrcRGB;
1818 return TYPE_INT;
1819 case GL_BLEND_SRC_ALPHA:
1820 if (index >= ctx->Const.MaxDrawBuffers)
1821 goto invalid_value;
1822 if (!ctx->Extensions.ARB_draw_buffers_blend)
1823 goto invalid_enum;
1824 v->value_int = ctx->Color.Blend[index].SrcA;
1825 return TYPE_INT;
1826 case GL_BLEND_DST:
1827 /* fall-through */
1828 case GL_BLEND_DST_RGB:
1829 if (index >= ctx->Const.MaxDrawBuffers)
1830 goto invalid_value;
1831 if (!ctx->Extensions.ARB_draw_buffers_blend)
1832 goto invalid_enum;
1833 v->value_int = ctx->Color.Blend[index].DstRGB;
1834 return TYPE_INT;
1835 case GL_BLEND_DST_ALPHA:
1836 if (index >= ctx->Const.MaxDrawBuffers)
1837 goto invalid_value;
1838 if (!ctx->Extensions.ARB_draw_buffers_blend)
1839 goto invalid_enum;
1840 v->value_int = ctx->Color.Blend[index].DstA;
1841 return TYPE_INT;
1842 case GL_BLEND_EQUATION_RGB:
1843 if (index >= ctx->Const.MaxDrawBuffers)
1844 goto invalid_value;
1845 if (!ctx->Extensions.ARB_draw_buffers_blend)
1846 goto invalid_enum;
1847 v->value_int = ctx->Color.Blend[index].EquationRGB;
1848 return TYPE_INT;
1849 case GL_BLEND_EQUATION_ALPHA:
1850 if (index >= ctx->Const.MaxDrawBuffers)
1851 goto invalid_value;
1852 if (!ctx->Extensions.ARB_draw_buffers_blend)
1853 goto invalid_enum;
1854 v->value_int = ctx->Color.Blend[index].EquationA;
1855 return TYPE_INT;
1856
1857 case GL_COLOR_WRITEMASK:
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_4[0] = ctx->Color.ColorMask[index][RCOMP] ? 1 : 0;
1863 v->value_int_4[1] = ctx->Color.ColorMask[index][GCOMP] ? 1 : 0;
1864 v->value_int_4[2] = ctx->Color.ColorMask[index][BCOMP] ? 1 : 0;
1865 v->value_int_4[3] = ctx->Color.ColorMask[index][ACOMP] ? 1 : 0;
1866 return TYPE_INT_4;
1867
1868 case GL_SCISSOR_BOX:
1869 if (index >= ctx->Const.MaxViewports)
1870 goto invalid_value;
1871 v->value_int_4[0] = ctx->Scissor.ScissorArray[index].X;
1872 v->value_int_4[1] = ctx->Scissor.ScissorArray[index].Y;
1873 v->value_int_4[2] = ctx->Scissor.ScissorArray[index].Width;
1874 v->value_int_4[3] = ctx->Scissor.ScissorArray[index].Height;
1875 return TYPE_INT_4;
1876
1877 case GL_VIEWPORT:
1878 if (index >= ctx->Const.MaxViewports)
1879 goto invalid_value;
1880 v->value_float_4[0] = ctx->ViewportArray[index].X;
1881 v->value_float_4[1] = ctx->ViewportArray[index].Y;
1882 v->value_float_4[2] = ctx->ViewportArray[index].Width;
1883 v->value_float_4[3] = ctx->ViewportArray[index].Height;
1884 return TYPE_FLOAT_4;
1885
1886 case GL_DEPTH_RANGE:
1887 if (index >= ctx->Const.MaxViewports)
1888 goto invalid_value;
1889 v->value_double_2[0] = ctx->ViewportArray[index].Near;
1890 v->value_double_2[1] = ctx->ViewportArray[index].Far;
1891 return TYPE_DOUBLEN_2;
1892
1893 case GL_TRANSFORM_FEEDBACK_BUFFER_START:
1894 if (index >= ctx->Const.MaxTransformFeedbackBuffers)
1895 goto invalid_value;
1896 if (!ctx->Extensions.EXT_transform_feedback)
1897 goto invalid_enum;
1898 v->value_int64 = ctx->TransformFeedback.CurrentObject->Offset[index];
1899 return TYPE_INT64;
1900
1901 case GL_TRANSFORM_FEEDBACK_BUFFER_SIZE:
1902 if (index >= ctx->Const.MaxTransformFeedbackBuffers)
1903 goto invalid_value;
1904 if (!ctx->Extensions.EXT_transform_feedback)
1905 goto invalid_enum;
1906 v->value_int64
1907 = ctx->TransformFeedback.CurrentObject->RequestedSize[index];
1908 return TYPE_INT64;
1909
1910 case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING:
1911 if (index >= ctx->Const.MaxTransformFeedbackBuffers)
1912 goto invalid_value;
1913 if (!ctx->Extensions.EXT_transform_feedback)
1914 goto invalid_enum;
1915 v->value_int = ctx->TransformFeedback.CurrentObject->BufferNames[index];
1916 return TYPE_INT;
1917
1918 case GL_UNIFORM_BUFFER_BINDING:
1919 if (index >= ctx->Const.MaxUniformBufferBindings)
1920 goto invalid_value;
1921 if (!ctx->Extensions.ARB_uniform_buffer_object)
1922 goto invalid_enum;
1923 v->value_int = ctx->UniformBufferBindings[index].BufferObject->Name;
1924 return TYPE_INT;
1925
1926 case GL_UNIFORM_BUFFER_START:
1927 if (index >= ctx->Const.MaxUniformBufferBindings)
1928 goto invalid_value;
1929 if (!ctx->Extensions.ARB_uniform_buffer_object)
1930 goto invalid_enum;
1931 v->value_int = ctx->UniformBufferBindings[index].Offset;
1932 return TYPE_INT;
1933
1934 case GL_UNIFORM_BUFFER_SIZE:
1935 if (index >= ctx->Const.MaxUniformBufferBindings)
1936 goto invalid_value;
1937 if (!ctx->Extensions.ARB_uniform_buffer_object)
1938 goto invalid_enum;
1939 v->value_int = ctx->UniformBufferBindings[index].Size;
1940 return TYPE_INT;
1941
1942 /* ARB_texture_multisample / GL3.2 */
1943 case GL_SAMPLE_MASK_VALUE:
1944 if (index != 0)
1945 goto invalid_value;
1946 if (!ctx->Extensions.ARB_texture_multisample)
1947 goto invalid_enum;
1948 v->value_int = ctx->Multisample.SampleMaskValue;
1949 return TYPE_INT;
1950
1951 case GL_ATOMIC_COUNTER_BUFFER_BINDING:
1952 if (!ctx->Extensions.ARB_shader_atomic_counters)
1953 goto invalid_enum;
1954 if (index >= ctx->Const.MaxAtomicBufferBindings)
1955 goto invalid_value;
1956 v->value_int = ctx->AtomicBufferBindings[index].BufferObject->Name;
1957 return TYPE_INT;
1958
1959 case GL_ATOMIC_COUNTER_BUFFER_START:
1960 if (!ctx->Extensions.ARB_shader_atomic_counters)
1961 goto invalid_enum;
1962 if (index >= ctx->Const.MaxAtomicBufferBindings)
1963 goto invalid_value;
1964 v->value_int64 = ctx->AtomicBufferBindings[index].Offset;
1965 return TYPE_INT64;
1966
1967 case GL_ATOMIC_COUNTER_BUFFER_SIZE:
1968 if (!ctx->Extensions.ARB_shader_atomic_counters)
1969 goto invalid_enum;
1970 if (index >= ctx->Const.MaxAtomicBufferBindings)
1971 goto invalid_value;
1972 v->value_int64 = ctx->AtomicBufferBindings[index].Size;
1973 return TYPE_INT64;
1974
1975 case GL_VERTEX_BINDING_DIVISOR:
1976 if ((!_mesa_is_desktop_gl(ctx) || !ctx->Extensions.ARB_instanced_arrays) &&
1977 !_mesa_is_gles31(ctx))
1978 goto invalid_enum;
1979 if (index >= ctx->Const.Program[MESA_SHADER_VERTEX].MaxAttribs)
1980 goto invalid_value;
1981 v->value_int = ctx->Array.VAO->VertexBinding[VERT_ATTRIB_GENERIC(index)].InstanceDivisor;
1982 return TYPE_INT;
1983
1984 case GL_VERTEX_BINDING_OFFSET:
1985 if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles31(ctx))
1986 goto invalid_enum;
1987 if (index >= ctx->Const.Program[MESA_SHADER_VERTEX].MaxAttribs)
1988 goto invalid_value;
1989 v->value_int = ctx->Array.VAO->VertexBinding[VERT_ATTRIB_GENERIC(index)].Offset;
1990 return TYPE_INT;
1991
1992 case GL_VERTEX_BINDING_STRIDE:
1993 if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles31(ctx))
1994 goto invalid_enum;
1995 if (index >= ctx->Const.Program[MESA_SHADER_VERTEX].MaxAttribs)
1996 goto invalid_value;
1997 v->value_int = ctx->Array.VAO->VertexBinding[VERT_ATTRIB_GENERIC(index)].Stride;
1998 return TYPE_INT;
1999
2000 case GL_VERTEX_BINDING_BUFFER:
2001 if (ctx->API == API_OPENGLES2 && ctx->Version < 31)
2002 goto invalid_enum;
2003 if (index >= ctx->Const.Program[MESA_SHADER_VERTEX].MaxAttribs)
2004 goto invalid_value;
2005 v->value_int = ctx->Array.VAO->VertexBinding[VERT_ATTRIB_GENERIC(index)].BufferObj->Name;
2006 return TYPE_INT;
2007
2008 /* ARB_shader_image_load_store */
2009 case GL_IMAGE_BINDING_NAME: {
2010 struct gl_texture_object *t;
2011
2012 if (!ctx->Extensions.ARB_shader_image_load_store)
2013 goto invalid_enum;
2014 if (index >= ctx->Const.MaxImageUnits)
2015 goto invalid_value;
2016
2017 t = ctx->ImageUnits[index].TexObj;
2018 v->value_int = (t ? t->Name : 0);
2019 return TYPE_INT;
2020 }
2021
2022 case GL_IMAGE_BINDING_LEVEL:
2023 if (!ctx->Extensions.ARB_shader_image_load_store)
2024 goto invalid_enum;
2025 if (index >= ctx->Const.MaxImageUnits)
2026 goto invalid_value;
2027
2028 v->value_int = ctx->ImageUnits[index].Level;
2029 return TYPE_INT;
2030
2031 case GL_IMAGE_BINDING_LAYERED:
2032 if (!ctx->Extensions.ARB_shader_image_load_store)
2033 goto invalid_enum;
2034 if (index >= ctx->Const.MaxImageUnits)
2035 goto invalid_value;
2036
2037 v->value_int = ctx->ImageUnits[index].Layered;
2038 return TYPE_INT;
2039
2040 case GL_IMAGE_BINDING_LAYER:
2041 if (!ctx->Extensions.ARB_shader_image_load_store)
2042 goto invalid_enum;
2043 if (index >= ctx->Const.MaxImageUnits)
2044 goto invalid_value;
2045
2046 v->value_int = ctx->ImageUnits[index].Layer;
2047 return TYPE_INT;
2048
2049 case GL_IMAGE_BINDING_ACCESS:
2050 if (!ctx->Extensions.ARB_shader_image_load_store)
2051 goto invalid_enum;
2052 if (index >= ctx->Const.MaxImageUnits)
2053 goto invalid_value;
2054
2055 v->value_int = ctx->ImageUnits[index].Access;
2056 return TYPE_INT;
2057
2058 case GL_IMAGE_BINDING_FORMAT:
2059 if (!ctx->Extensions.ARB_shader_image_load_store)
2060 goto invalid_enum;
2061 if (index >= ctx->Const.MaxImageUnits)
2062 goto invalid_value;
2063
2064 v->value_int = ctx->ImageUnits[index].Format;
2065 return TYPE_INT;
2066
2067 /* ARB_direct_state_access */
2068 case GL_TEXTURE_BINDING_1D:
2069 case GL_TEXTURE_BINDING_1D_ARRAY:
2070 case GL_TEXTURE_BINDING_2D:
2071 case GL_TEXTURE_BINDING_2D_ARRAY:
2072 case GL_TEXTURE_BINDING_2D_MULTISAMPLE:
2073 case GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY:
2074 case GL_TEXTURE_BINDING_3D:
2075 case GL_TEXTURE_BINDING_BUFFER:
2076 case GL_TEXTURE_BINDING_CUBE_MAP:
2077 case GL_TEXTURE_BINDING_CUBE_MAP_ARRAY:
2078 case GL_TEXTURE_BINDING_RECTANGLE: {
2079 int target;
2080
2081 if (ctx->API != API_OPENGL_CORE)
2082 goto invalid_enum;
2083 target = tex_binding_to_index(ctx, pname);
2084 if (target < 0)
2085 goto invalid_enum;
2086 if (index >= _mesa_max_tex_unit(ctx))
2087 goto invalid_value;
2088
2089 v->value_int = ctx->Texture.Unit[index].CurrentTex[target]->Name;
2090 return TYPE_INT;
2091 }
2092
2093 case GL_SAMPLER_BINDING: {
2094 struct gl_sampler_object *samp;
2095
2096 if (ctx->API != API_OPENGL_CORE)
2097 goto invalid_enum;
2098 if (index >= _mesa_max_tex_unit(ctx))
2099 goto invalid_value;
2100
2101 samp = ctx->Texture.Unit[index].Sampler;
2102 v->value_int = samp ? samp->Name : 0;
2103 return TYPE_INT;
2104 }
2105
2106 case GL_MAX_COMPUTE_WORK_GROUP_COUNT:
2107 if (!_mesa_has_compute_shaders(ctx))
2108 goto invalid_enum;
2109 if (index >= 3)
2110 goto invalid_value;
2111 v->value_int = ctx->Const.MaxComputeWorkGroupCount[index];
2112 return TYPE_INT;
2113
2114 case GL_MAX_COMPUTE_WORK_GROUP_SIZE:
2115 if (!_mesa_has_compute_shaders(ctx))
2116 goto invalid_enum;
2117 if (index >= 3)
2118 goto invalid_value;
2119 v->value_int = ctx->Const.MaxComputeWorkGroupSize[index];
2120 return TYPE_INT;
2121 }
2122
2123 invalid_enum:
2124 _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func,
2125 _mesa_enum_to_string(pname));
2126 return TYPE_INVALID;
2127 invalid_value:
2128 _mesa_error(ctx, GL_INVALID_VALUE, "%s(pname=%s)", func,
2129 _mesa_enum_to_string(pname));
2130 return TYPE_INVALID;
2131 }
2132
2133 void GLAPIENTRY
2134 _mesa_GetBooleani_v( GLenum pname, GLuint index, GLboolean *params )
2135 {
2136 union value v;
2137 enum value_type type =
2138 find_value_indexed("glGetBooleani_v", pname, index, &v);
2139
2140 switch (type) {
2141 case TYPE_INT:
2142 params[0] = INT_TO_BOOLEAN(v.value_int);
2143 break;
2144 case TYPE_INT_4:
2145 params[0] = INT_TO_BOOLEAN(v.value_int_4[0]);
2146 params[1] = INT_TO_BOOLEAN(v.value_int_4[1]);
2147 params[2] = INT_TO_BOOLEAN(v.value_int_4[2]);
2148 params[3] = INT_TO_BOOLEAN(v.value_int_4[3]);
2149 break;
2150 case TYPE_INT64:
2151 params[0] = INT64_TO_BOOLEAN(v.value_int64);
2152 break;
2153 default:
2154 ; /* nothing - GL error was recorded */
2155 }
2156 }
2157
2158 void GLAPIENTRY
2159 _mesa_GetIntegeri_v( GLenum pname, GLuint index, GLint *params )
2160 {
2161 union value v;
2162 enum value_type type =
2163 find_value_indexed("glGetIntegeri_v", pname, index, &v);
2164
2165 switch (type) {
2166 case TYPE_FLOAT_4:
2167 case TYPE_FLOATN_4:
2168 params[3] = IROUND(v.value_float_4[3]);
2169 case TYPE_FLOAT_3:
2170 case TYPE_FLOATN_3:
2171 params[2] = IROUND(v.value_float_4[2]);
2172 case TYPE_FLOAT_2:
2173 case TYPE_FLOATN_2:
2174 params[1] = IROUND(v.value_float_4[1]);
2175 case TYPE_FLOAT:
2176 case TYPE_FLOATN:
2177 params[0] = IROUND(v.value_float_4[0]);
2178 break;
2179
2180 case TYPE_DOUBLEN_2:
2181 params[1] = IROUND(v.value_double_2[1]);
2182 case TYPE_DOUBLEN:
2183 params[0] = IROUND(v.value_double_2[0]);
2184 break;
2185
2186 case TYPE_INT:
2187 params[0] = v.value_int;
2188 break;
2189 case TYPE_INT_4:
2190 params[0] = v.value_int_4[0];
2191 params[1] = v.value_int_4[1];
2192 params[2] = v.value_int_4[2];
2193 params[3] = v.value_int_4[3];
2194 break;
2195 case TYPE_INT64:
2196 params[0] = INT64_TO_INT(v.value_int64);
2197 break;
2198 default:
2199 ; /* nothing - GL error was recorded */
2200 }
2201 }
2202
2203 void GLAPIENTRY
2204 _mesa_GetInteger64i_v( GLenum pname, GLuint index, GLint64 *params )
2205 {
2206 union value v;
2207 enum value_type type =
2208 find_value_indexed("glGetInteger64i_v", pname, index, &v);
2209
2210 switch (type) {
2211 case TYPE_INT:
2212 params[0] = v.value_int;
2213 break;
2214 case TYPE_INT_4:
2215 params[0] = v.value_int_4[0];
2216 params[1] = v.value_int_4[1];
2217 params[2] = v.value_int_4[2];
2218 params[3] = v.value_int_4[3];
2219 break;
2220 case TYPE_INT64:
2221 params[0] = v.value_int64;
2222 break;
2223 default:
2224 ; /* nothing - GL error was recorded */
2225 }
2226 }
2227
2228 void GLAPIENTRY
2229 _mesa_GetFloati_v(GLenum pname, GLuint index, GLfloat *params)
2230 {
2231 int i;
2232 GLmatrix *m;
2233 union value v;
2234 enum value_type type =
2235 find_value_indexed("glGetFloati_v", pname, index, &v);
2236
2237 switch (type) {
2238 case TYPE_FLOAT_4:
2239 case TYPE_FLOATN_4:
2240 params[3] = v.value_float_4[3];
2241 case TYPE_FLOAT_3:
2242 case TYPE_FLOATN_3:
2243 params[2] = v.value_float_4[2];
2244 case TYPE_FLOAT_2:
2245 case TYPE_FLOATN_2:
2246 params[1] = v.value_float_4[1];
2247 case TYPE_FLOAT:
2248 case TYPE_FLOATN:
2249 params[0] = v.value_float_4[0];
2250 break;
2251
2252 case TYPE_DOUBLEN_2:
2253 params[1] = (GLfloat) v.value_double_2[1];
2254 case TYPE_DOUBLEN:
2255 params[0] = (GLfloat) v.value_double_2[0];
2256 break;
2257
2258 case TYPE_INT_4:
2259 params[3] = (GLfloat) v.value_int_4[3];
2260 case TYPE_INT_3:
2261 params[2] = (GLfloat) v.value_int_4[2];
2262 case TYPE_INT_2:
2263 case TYPE_ENUM_2:
2264 params[1] = (GLfloat) v.value_int_4[1];
2265 case TYPE_INT:
2266 case TYPE_ENUM:
2267 params[0] = (GLfloat) v.value_int_4[0];
2268 break;
2269
2270 case TYPE_INT_N:
2271 for (i = 0; i < v.value_int_n.n; i++)
2272 params[i] = INT_TO_FLOAT(v.value_int_n.ints[i]);
2273 break;
2274
2275 case TYPE_INT64:
2276 params[0] = (GLfloat) v.value_int64;
2277 break;
2278
2279 case TYPE_BOOLEAN:
2280 params[0] = BOOLEAN_TO_FLOAT(v.value_bool);
2281 break;
2282
2283 case TYPE_MATRIX:
2284 m = *(GLmatrix **) &v;
2285 for (i = 0; i < 16; i++)
2286 params[i] = m->m[i];
2287 break;
2288
2289 case TYPE_MATRIX_T:
2290 m = *(GLmatrix **) &v;
2291 for (i = 0; i < 16; i++)
2292 params[i] = m->m[transpose[i]];
2293 break;
2294
2295 default:
2296 ;
2297 }
2298 }
2299
2300 void GLAPIENTRY
2301 _mesa_GetDoublei_v(GLenum pname, GLuint index, GLdouble *params)
2302 {
2303 int i;
2304 GLmatrix *m;
2305 union value v;
2306 enum value_type type =
2307 find_value_indexed("glGetDoublei_v", pname, index, &v);
2308
2309 switch (type) {
2310 case TYPE_FLOAT_4:
2311 case TYPE_FLOATN_4:
2312 params[3] = (GLdouble) v.value_float_4[3];
2313 case TYPE_FLOAT_3:
2314 case TYPE_FLOATN_3:
2315 params[2] = (GLdouble) v.value_float_4[2];
2316 case TYPE_FLOAT_2:
2317 case TYPE_FLOATN_2:
2318 params[1] = (GLdouble) v.value_float_4[1];
2319 case TYPE_FLOAT:
2320 case TYPE_FLOATN:
2321 params[0] = (GLdouble) v.value_float_4[0];
2322 break;
2323
2324 case TYPE_DOUBLEN_2:
2325 params[1] = v.value_double_2[1];
2326 case TYPE_DOUBLEN:
2327 params[0] = v.value_double_2[0];
2328 break;
2329
2330 case TYPE_INT_4:
2331 params[3] = (GLdouble) v.value_int_4[3];
2332 case TYPE_INT_3:
2333 params[2] = (GLdouble) v.value_int_4[2];
2334 case TYPE_INT_2:
2335 case TYPE_ENUM_2:
2336 params[1] = (GLdouble) v.value_int_4[1];
2337 case TYPE_INT:
2338 case TYPE_ENUM:
2339 params[0] = (GLdouble) v.value_int_4[0];
2340 break;
2341
2342 case TYPE_INT_N:
2343 for (i = 0; i < v.value_int_n.n; i++)
2344 params[i] = (GLdouble) INT_TO_FLOAT(v.value_int_n.ints[i]);
2345 break;
2346
2347 case TYPE_INT64:
2348 params[0] = (GLdouble) v.value_int64;
2349 break;
2350
2351 case TYPE_BOOLEAN:
2352 params[0] = (GLdouble) BOOLEAN_TO_FLOAT(v.value_bool);
2353 break;
2354
2355 case TYPE_MATRIX:
2356 m = *(GLmatrix **) &v;
2357 for (i = 0; i < 16; i++)
2358 params[i] = (GLdouble) m->m[i];
2359 break;
2360
2361 case TYPE_MATRIX_T:
2362 m = *(GLmatrix **) &v;
2363 for (i = 0; i < 16; i++)
2364 params[i] = (GLdouble) m->m[transpose[i]];
2365 break;
2366
2367 default:
2368 ;
2369 }
2370 }
2371
2372 void GLAPIENTRY
2373 _mesa_GetFixedv(GLenum pname, GLfixed *params)
2374 {
2375 const struct value_desc *d;
2376 union value v;
2377 GLmatrix *m;
2378 int shift, i;
2379 void *p;
2380
2381 d = find_value("glGetDoublev", pname, &p, &v);
2382 switch (d->type) {
2383 case TYPE_INVALID:
2384 break;
2385 case TYPE_CONST:
2386 params[0] = INT_TO_FIXED(d->offset);
2387 break;
2388
2389 case TYPE_FLOAT_4:
2390 case TYPE_FLOATN_4:
2391 params[3] = FLOAT_TO_FIXED(((GLfloat *) p)[3]);
2392 case TYPE_FLOAT_3:
2393 case TYPE_FLOATN_3:
2394 params[2] = FLOAT_TO_FIXED(((GLfloat *) p)[2]);
2395 case TYPE_FLOAT_2:
2396 case TYPE_FLOATN_2:
2397 params[1] = FLOAT_TO_FIXED(((GLfloat *) p)[1]);
2398 case TYPE_FLOAT:
2399 case TYPE_FLOATN:
2400 params[0] = FLOAT_TO_FIXED(((GLfloat *) p)[0]);
2401 break;
2402
2403 case TYPE_DOUBLEN_2:
2404 params[1] = FLOAT_TO_FIXED(((GLdouble *) p)[1]);
2405 case TYPE_DOUBLEN:
2406 params[0] = FLOAT_TO_FIXED(((GLdouble *) p)[0]);
2407 break;
2408
2409 case TYPE_INT_4:
2410 params[3] = INT_TO_FIXED(((GLint *) p)[3]);
2411 case TYPE_INT_3:
2412 params[2] = INT_TO_FIXED(((GLint *) p)[2]);
2413 case TYPE_INT_2:
2414 case TYPE_ENUM_2:
2415 params[1] = INT_TO_FIXED(((GLint *) p)[1]);
2416 case TYPE_INT:
2417 case TYPE_ENUM:
2418 params[0] = INT_TO_FIXED(((GLint *) p)[0]);
2419 break;
2420
2421 case TYPE_INT_N:
2422 for (i = 0; i < v.value_int_n.n; i++)
2423 params[i] = INT_TO_FIXED(v.value_int_n.ints[i]);
2424 break;
2425
2426 case TYPE_INT64:
2427 params[0] = ((GLint64 *) p)[0];
2428 break;
2429
2430 case TYPE_BOOLEAN:
2431 params[0] = BOOLEAN_TO_FIXED(((GLboolean*) p)[0]);
2432 break;
2433
2434 case TYPE_MATRIX:
2435 m = *(GLmatrix **) p;
2436 for (i = 0; i < 16; i++)
2437 params[i] = FLOAT_TO_FIXED(m->m[i]);
2438 break;
2439
2440 case TYPE_MATRIX_T:
2441 m = *(GLmatrix **) p;
2442 for (i = 0; i < 16; i++)
2443 params[i] = FLOAT_TO_FIXED(m->m[transpose[i]]);
2444 break;
2445
2446 case TYPE_BIT_0:
2447 case TYPE_BIT_1:
2448 case TYPE_BIT_2:
2449 case TYPE_BIT_3:
2450 case TYPE_BIT_4:
2451 case TYPE_BIT_5:
2452 case TYPE_BIT_6:
2453 case TYPE_BIT_7:
2454 shift = d->type - TYPE_BIT_0;
2455 params[0] = BOOLEAN_TO_FIXED((*(GLbitfield *) p >> shift) & 1);
2456 break;
2457 }
2458 }