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main: Add MESA_VERBOSE=api for LinkProgram & UseProgram
[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 static const int extra_ARB_shader_storage_buffer_object_es31[] = {
373 EXT(ARB_shader_storage_buffer_object),
374 EXTRA_API_ES31,
375 EXTRA_END
376 };
377
378 EXTRA_EXT(ARB_texture_cube_map);
379 EXTRA_EXT(EXT_texture_array);
380 EXTRA_EXT(NV_fog_distance);
381 EXTRA_EXT(EXT_texture_filter_anisotropic);
382 EXTRA_EXT(NV_point_sprite);
383 EXTRA_EXT(NV_texture_rectangle);
384 EXTRA_EXT(EXT_stencil_two_side);
385 EXTRA_EXT(EXT_depth_bounds_test);
386 EXTRA_EXT(ARB_depth_clamp);
387 EXTRA_EXT(ATI_fragment_shader);
388 EXTRA_EXT(EXT_provoking_vertex);
389 EXTRA_EXT(ARB_fragment_shader);
390 EXTRA_EXT(ARB_fragment_program);
391 EXTRA_EXT2(ARB_framebuffer_object, EXT_framebuffer_multisample);
392 EXTRA_EXT(ARB_seamless_cube_map);
393 EXTRA_EXT(ARB_sync);
394 EXTRA_EXT(ARB_vertex_shader);
395 EXTRA_EXT(EXT_transform_feedback);
396 EXTRA_EXT(ARB_transform_feedback3);
397 EXTRA_EXT(EXT_pixel_buffer_object);
398 EXTRA_EXT(ARB_vertex_program);
399 EXTRA_EXT2(NV_point_sprite, ARB_point_sprite);
400 EXTRA_EXT2(ARB_vertex_program, ARB_fragment_program);
401 EXTRA_EXT(ARB_color_buffer_float);
402 EXTRA_EXT(EXT_framebuffer_sRGB);
403 EXTRA_EXT(OES_EGL_image_external);
404 EXTRA_EXT(ARB_blend_func_extended);
405 EXTRA_EXT(ARB_uniform_buffer_object);
406 EXTRA_EXT(ARB_timer_query);
407 EXTRA_EXT(ARB_texture_cube_map_array);
408 EXTRA_EXT(ARB_texture_buffer_range);
409 EXTRA_EXT(ARB_texture_multisample);
410 EXTRA_EXT(ARB_texture_gather);
411 EXTRA_EXT(ARB_shader_atomic_counters);
412 EXTRA_EXT(ARB_draw_indirect);
413 EXTRA_EXT(ARB_shader_image_load_store);
414 EXTRA_EXT(ARB_viewport_array);
415 EXTRA_EXT(ARB_compute_shader);
416 EXTRA_EXT(ARB_gpu_shader5);
417 EXTRA_EXT2(ARB_transform_feedback3, ARB_gpu_shader5);
418 EXTRA_EXT(INTEL_performance_query);
419 EXTRA_EXT(ARB_explicit_uniform_location);
420 EXTRA_EXT(ARB_clip_control);
421 EXTRA_EXT(EXT_polygon_offset_clamp);
422 EXTRA_EXT(ARB_framebuffer_no_attachments);
423 EXTRA_EXT(ARB_tessellation_shader);
424 EXTRA_EXT(ARB_shader_subroutine);
425 EXTRA_EXT(ARB_shader_storage_buffer_object);
426
427 static const int
428 extra_ARB_color_buffer_float_or_glcore[] = {
429 EXT(ARB_color_buffer_float),
430 EXTRA_API_GL_CORE,
431 EXTRA_END
432 };
433
434 static const int
435 extra_NV_primitive_restart[] = {
436 EXT(NV_primitive_restart),
437 EXTRA_END
438 };
439
440 static const int extra_version_30[] = { EXTRA_VERSION_30, EXTRA_END };
441 static const int extra_version_31[] = { EXTRA_VERSION_31, EXTRA_END };
442 static const int extra_version_32[] = { EXTRA_VERSION_32, EXTRA_END };
443 static const int extra_version_40[] = { EXTRA_VERSION_40, EXTRA_END };
444
445 static const int extra_gl30_es3[] = {
446 EXTRA_VERSION_30,
447 EXTRA_API_ES3,
448 EXTRA_END,
449 };
450
451 static const int extra_gl32_es3[] = {
452 EXTRA_VERSION_32,
453 EXTRA_API_ES3,
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_shader_storage_buffer_object */
1005 case GL_SHADER_STORAGE_BUFFER_BINDING:
1006 v->value_int = ctx->ShaderStorageBuffer->Name;
1007 break;
1008 /* GL_ARB_timer_query */
1009 case GL_TIMESTAMP:
1010 if (ctx->Driver.GetTimestamp) {
1011 v->value_int64 = ctx->Driver.GetTimestamp(ctx);
1012 }
1013 else {
1014 _mesa_problem(ctx, "driver doesn't implement GetTimestamp");
1015 }
1016 break;
1017 /* GL_KHR_DEBUG */
1018 case GL_DEBUG_LOGGED_MESSAGES:
1019 case GL_DEBUG_NEXT_LOGGED_MESSAGE_LENGTH:
1020 case GL_DEBUG_GROUP_STACK_DEPTH:
1021 v->value_int = _mesa_get_debug_state_int(ctx, d->pname);
1022 break;
1023 /* GL_ARB_shader_atomic_counters */
1024 case GL_ATOMIC_COUNTER_BUFFER_BINDING:
1025 if (ctx->AtomicBuffer) {
1026 v->value_int = ctx->AtomicBuffer->Name;
1027 } else {
1028 v->value_int = 0;
1029 }
1030 break;
1031 /* GL_ARB_draw_indirect */
1032 case GL_DRAW_INDIRECT_BUFFER_BINDING:
1033 v->value_int = ctx->DrawIndirectBuffer->Name;
1034 break;
1035 /* GL_ARB_separate_shader_objects */
1036 case GL_PROGRAM_PIPELINE_BINDING:
1037 if (ctx->Pipeline.Current) {
1038 v->value_int = ctx->Pipeline.Current->Name;
1039 } else {
1040 v->value_int = 0;
1041 }
1042 break;
1043 /* GL_ARB_compute_shader */
1044 case GL_DISPATCH_INDIRECT_BUFFER_BINDING:
1045 v->value_int = ctx->DispatchIndirectBuffer->Name;
1046 break;
1047 }
1048 }
1049
1050 /**
1051 * Check extra constraints on a struct value_desc descriptor
1052 *
1053 * If a struct value_desc has a non-NULL extra pointer, it means that
1054 * there are a number of extra constraints to check or actions to
1055 * perform. The extras is just an integer array where each integer
1056 * encode different constraints or actions.
1057 *
1058 * \param ctx current context
1059 * \param func name of calling glGet*v() function for error reporting
1060 * \param d the struct value_desc that has the extra constraints
1061 *
1062 * \return GL_FALSE if all of the constraints were not satisfied,
1063 * otherwise GL_TRUE.
1064 */
1065 static GLboolean
1066 check_extra(struct gl_context *ctx, const char *func, const struct value_desc *d)
1067 {
1068 const GLuint version = ctx->Version;
1069 GLboolean api_check = GL_FALSE;
1070 GLboolean api_found = GL_FALSE;
1071 const int *e;
1072
1073 for (e = d->extra; *e != EXTRA_END; e++) {
1074 switch (*e) {
1075 case EXTRA_VERSION_30:
1076 api_check = GL_TRUE;
1077 if (version >= 30)
1078 api_found = GL_TRUE;
1079 break;
1080 case EXTRA_VERSION_31:
1081 api_check = GL_TRUE;
1082 if (version >= 31)
1083 api_found = GL_TRUE;
1084 break;
1085 case EXTRA_VERSION_32:
1086 api_check = GL_TRUE;
1087 if (version >= 32)
1088 api_found = GL_TRUE;
1089 break;
1090 case EXTRA_NEW_FRAG_CLAMP:
1091 if (ctx->NewState & (_NEW_BUFFERS | _NEW_FRAG_CLAMP))
1092 _mesa_update_state(ctx);
1093 break;
1094 case EXTRA_API_ES2:
1095 api_check = GL_TRUE;
1096 if (ctx->API == API_OPENGLES2)
1097 api_found = GL_TRUE;
1098 break;
1099 case EXTRA_API_ES3:
1100 api_check = GL_TRUE;
1101 if (_mesa_is_gles3(ctx))
1102 api_found = GL_TRUE;
1103 break;
1104 case EXTRA_API_ES31:
1105 api_check = GL_TRUE;
1106 if (_mesa_is_gles31(ctx))
1107 api_found = GL_TRUE;
1108 break;
1109 case EXTRA_API_GL:
1110 api_check = GL_TRUE;
1111 if (_mesa_is_desktop_gl(ctx))
1112 api_found = GL_TRUE;
1113 break;
1114 case EXTRA_API_GL_CORE:
1115 api_check = GL_TRUE;
1116 if (ctx->API == API_OPENGL_CORE)
1117 api_found = GL_TRUE;
1118 break;
1119 case EXTRA_NEW_BUFFERS:
1120 if (ctx->NewState & _NEW_BUFFERS)
1121 _mesa_update_state(ctx);
1122 break;
1123 case EXTRA_FLUSH_CURRENT:
1124 FLUSH_CURRENT(ctx, 0);
1125 break;
1126 case EXTRA_VALID_DRAW_BUFFER:
1127 if (d->pname - GL_DRAW_BUFFER0_ARB >= ctx->Const.MaxDrawBuffers) {
1128 _mesa_error(ctx, GL_INVALID_OPERATION, "%s(draw buffer %u)",
1129 func, d->pname - GL_DRAW_BUFFER0_ARB);
1130 return GL_FALSE;
1131 }
1132 break;
1133 case EXTRA_VALID_TEXTURE_UNIT:
1134 if (ctx->Texture.CurrentUnit >= ctx->Const.MaxTextureCoordUnits) {
1135 _mesa_error(ctx, GL_INVALID_OPERATION, "%s(texture %u)",
1136 func, ctx->Texture.CurrentUnit);
1137 return GL_FALSE;
1138 }
1139 break;
1140 case EXTRA_VALID_CLIP_DISTANCE:
1141 if (d->pname - GL_CLIP_DISTANCE0 >= ctx->Const.MaxClipPlanes) {
1142 _mesa_error(ctx, GL_INVALID_ENUM, "%s(clip distance %u)",
1143 func, d->pname - GL_CLIP_DISTANCE0);
1144 return GL_FALSE;
1145 }
1146 break;
1147 case EXTRA_GLSL_130:
1148 api_check = GL_TRUE;
1149 if (ctx->Const.GLSLVersion >= 130)
1150 api_found = GL_TRUE;
1151 break;
1152 case EXTRA_EXT_UBO_GS4:
1153 api_check = GL_TRUE;
1154 api_found = (ctx->Extensions.ARB_uniform_buffer_object &&
1155 _mesa_has_geometry_shaders(ctx));
1156 break;
1157 case EXTRA_EXT_ATOMICS_GS4:
1158 api_check = GL_TRUE;
1159 api_found = (ctx->Extensions.ARB_shader_atomic_counters &&
1160 _mesa_has_geometry_shaders(ctx));
1161 break;
1162 case EXTRA_EXT_SHADER_IMAGE_GS4:
1163 api_check = GL_TRUE;
1164 api_found = (ctx->Extensions.ARB_shader_image_load_store &&
1165 _mesa_has_geometry_shaders(ctx));
1166 break;
1167 case EXTRA_EXT_ATOMICS_TESS:
1168 api_check = GL_TRUE;
1169 api_found = ctx->Extensions.ARB_shader_atomic_counters &&
1170 _mesa_has_tessellation(ctx);
1171 break;
1172 case EXTRA_EXT_SHADER_IMAGE_TESS:
1173 api_check = GL_TRUE;
1174 api_found = ctx->Extensions.ARB_shader_image_load_store &&
1175 _mesa_has_tessellation(ctx);
1176 break;
1177 case EXTRA_END:
1178 break;
1179 default: /* *e is a offset into the extension struct */
1180 api_check = GL_TRUE;
1181 if (*(GLboolean *) ((char *) &ctx->Extensions + *e))
1182 api_found = GL_TRUE;
1183 break;
1184 }
1185 }
1186
1187 if (api_check && !api_found) {
1188 _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func,
1189 _mesa_enum_to_string(d->pname));
1190 return GL_FALSE;
1191 }
1192
1193 return GL_TRUE;
1194 }
1195
1196 static const struct value_desc error_value =
1197 { 0, 0, TYPE_INVALID, NO_OFFSET, NO_EXTRA };
1198
1199 /**
1200 * Find the struct value_desc corresponding to the enum 'pname'.
1201 *
1202 * We hash the enum value to get an index into the 'table' array,
1203 * which holds the index in the 'values' array of struct value_desc.
1204 * Once we've found the entry, we do the extra checks, if any, then
1205 * look up the value and return a pointer to it.
1206 *
1207 * If the value has to be computed (for example, it's the result of a
1208 * function call or we need to add 1 to it), we use the tmp 'v' to
1209 * store the result.
1210 *
1211 * \param func name of glGet*v() func for error reporting
1212 * \param pname the enum value we're looking up
1213 * \param p is were we return the pointer to the value
1214 * \param v a tmp union value variable in the calling glGet*v() function
1215 *
1216 * \return the struct value_desc corresponding to the enum or a struct
1217 * value_desc of TYPE_INVALID if not found. This lets the calling
1218 * glGet*v() function jump right into a switch statement and
1219 * handle errors there instead of having to check for NULL.
1220 */
1221 static const struct value_desc *
1222 find_value(const char *func, GLenum pname, void **p, union value *v)
1223 {
1224 GET_CURRENT_CONTEXT(ctx);
1225 struct gl_texture_unit *unit;
1226 int mask, hash;
1227 const struct value_desc *d;
1228 int api;
1229
1230 api = ctx->API;
1231 /* We index into the table_set[] list of per-API hash tables using the API's
1232 * value in the gl_api enum. Since GLES 3 doesn't have an API_OPENGL* enum
1233 * value since it's compatible with GLES2 its entry in table_set[] is at the
1234 * end.
1235 */
1236 STATIC_ASSERT(ARRAY_SIZE(table_set) == API_OPENGL_LAST + 3);
1237 if (_mesa_is_gles3(ctx)) {
1238 api = API_OPENGL_LAST + 1;
1239 }
1240 if (_mesa_is_gles31(ctx)) {
1241 api = API_OPENGL_LAST + 2;
1242 }
1243 mask = ARRAY_SIZE(table(api)) - 1;
1244 hash = (pname * prime_factor);
1245 while (1) {
1246 int idx = table(api)[hash & mask];
1247
1248 /* If the enum isn't valid, the hash walk ends with index 0,
1249 * pointing to the first entry of values[] which doesn't hold
1250 * any valid enum. */
1251 if (unlikely(idx == 0)) {
1252 _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func,
1253 _mesa_enum_to_string(pname));
1254 return &error_value;
1255 }
1256
1257 d = &values[idx];
1258 if (likely(d->pname == pname))
1259 break;
1260
1261 hash += prime_step;
1262 }
1263
1264 if (unlikely(d->extra && !check_extra(ctx, func, d)))
1265 return &error_value;
1266
1267 switch (d->location) {
1268 case LOC_BUFFER:
1269 *p = ((char *) ctx->DrawBuffer + d->offset);
1270 return d;
1271 case LOC_CONTEXT:
1272 *p = ((char *) ctx + d->offset);
1273 return d;
1274 case LOC_ARRAY:
1275 *p = ((char *) ctx->Array.VAO + d->offset);
1276 return d;
1277 case LOC_TEXUNIT:
1278 unit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
1279 *p = ((char *) unit + d->offset);
1280 return d;
1281 case LOC_CUSTOM:
1282 find_custom_value(ctx, d, v);
1283 *p = v;
1284 return d;
1285 default:
1286 assert(0);
1287 break;
1288 }
1289
1290 /* silence warning */
1291 return &error_value;
1292 }
1293
1294 static const int transpose[] = {
1295 0, 4, 8, 12,
1296 1, 5, 9, 13,
1297 2, 6, 10, 14,
1298 3, 7, 11, 15
1299 };
1300
1301 void GLAPIENTRY
1302 _mesa_GetBooleanv(GLenum pname, GLboolean *params)
1303 {
1304 const struct value_desc *d;
1305 union value v;
1306 GLmatrix *m;
1307 int shift, i;
1308 void *p;
1309
1310 d = find_value("glGetBooleanv", pname, &p, &v);
1311 switch (d->type) {
1312 case TYPE_INVALID:
1313 break;
1314 case TYPE_CONST:
1315 params[0] = INT_TO_BOOLEAN(d->offset);
1316 break;
1317
1318 case TYPE_FLOAT_4:
1319 case TYPE_FLOATN_4:
1320 params[3] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[3]);
1321 case TYPE_FLOAT_3:
1322 case TYPE_FLOATN_3:
1323 params[2] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[2]);
1324 case TYPE_FLOAT_2:
1325 case TYPE_FLOATN_2:
1326 params[1] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[1]);
1327 case TYPE_FLOAT:
1328 case TYPE_FLOATN:
1329 params[0] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[0]);
1330 break;
1331
1332 case TYPE_DOUBLEN_2:
1333 params[1] = FLOAT_TO_BOOLEAN(((GLdouble *) p)[1]);
1334 case TYPE_DOUBLEN:
1335 params[0] = FLOAT_TO_BOOLEAN(((GLdouble *) p)[0]);
1336 break;
1337
1338 case TYPE_INT_4:
1339 params[3] = INT_TO_BOOLEAN(((GLint *) p)[3]);
1340 case TYPE_INT_3:
1341 params[2] = INT_TO_BOOLEAN(((GLint *) p)[2]);
1342 case TYPE_INT_2:
1343 case TYPE_ENUM_2:
1344 params[1] = INT_TO_BOOLEAN(((GLint *) p)[1]);
1345 case TYPE_INT:
1346 case TYPE_ENUM:
1347 params[0] = INT_TO_BOOLEAN(((GLint *) p)[0]);
1348 break;
1349
1350 case TYPE_INT_N:
1351 for (i = 0; i < v.value_int_n.n; i++)
1352 params[i] = INT_TO_BOOLEAN(v.value_int_n.ints[i]);
1353 break;
1354
1355 case TYPE_INT64:
1356 params[0] = INT64_TO_BOOLEAN(((GLint64 *) p)[0]);
1357 break;
1358
1359 case TYPE_BOOLEAN:
1360 params[0] = ((GLboolean*) p)[0];
1361 break;
1362
1363 case TYPE_MATRIX:
1364 m = *(GLmatrix **) p;
1365 for (i = 0; i < 16; i++)
1366 params[i] = FLOAT_TO_BOOLEAN(m->m[i]);
1367 break;
1368
1369 case TYPE_MATRIX_T:
1370 m = *(GLmatrix **) p;
1371 for (i = 0; i < 16; i++)
1372 params[i] = FLOAT_TO_BOOLEAN(m->m[transpose[i]]);
1373 break;
1374
1375 case TYPE_BIT_0:
1376 case TYPE_BIT_1:
1377 case TYPE_BIT_2:
1378 case TYPE_BIT_3:
1379 case TYPE_BIT_4:
1380 case TYPE_BIT_5:
1381 case TYPE_BIT_6:
1382 case TYPE_BIT_7:
1383 shift = d->type - TYPE_BIT_0;
1384 params[0] = (*(GLbitfield *) p >> shift) & 1;
1385 break;
1386 }
1387 }
1388
1389 void GLAPIENTRY
1390 _mesa_GetFloatv(GLenum pname, GLfloat *params)
1391 {
1392 const struct value_desc *d;
1393 union value v;
1394 GLmatrix *m;
1395 int shift, i;
1396 void *p;
1397
1398 d = find_value("glGetFloatv", pname, &p, &v);
1399 switch (d->type) {
1400 case TYPE_INVALID:
1401 break;
1402 case TYPE_CONST:
1403 params[0] = (GLfloat) d->offset;
1404 break;
1405
1406 case TYPE_FLOAT_4:
1407 case TYPE_FLOATN_4:
1408 params[3] = ((GLfloat *) p)[3];
1409 case TYPE_FLOAT_3:
1410 case TYPE_FLOATN_3:
1411 params[2] = ((GLfloat *) p)[2];
1412 case TYPE_FLOAT_2:
1413 case TYPE_FLOATN_2:
1414 params[1] = ((GLfloat *) p)[1];
1415 case TYPE_FLOAT:
1416 case TYPE_FLOATN:
1417 params[0] = ((GLfloat *) p)[0];
1418 break;
1419
1420 case TYPE_DOUBLEN_2:
1421 params[1] = (GLfloat) (((GLdouble *) p)[1]);
1422 case TYPE_DOUBLEN:
1423 params[0] = (GLfloat) (((GLdouble *) p)[0]);
1424 break;
1425
1426 case TYPE_INT_4:
1427 params[3] = (GLfloat) (((GLint *) p)[3]);
1428 case TYPE_INT_3:
1429 params[2] = (GLfloat) (((GLint *) p)[2]);
1430 case TYPE_INT_2:
1431 case TYPE_ENUM_2:
1432 params[1] = (GLfloat) (((GLint *) p)[1]);
1433 case TYPE_INT:
1434 case TYPE_ENUM:
1435 params[0] = (GLfloat) (((GLint *) p)[0]);
1436 break;
1437
1438 case TYPE_INT_N:
1439 for (i = 0; i < v.value_int_n.n; i++)
1440 params[i] = INT_TO_FLOAT(v.value_int_n.ints[i]);
1441 break;
1442
1443 case TYPE_INT64:
1444 params[0] = (GLfloat) (((GLint64 *) p)[0]);
1445 break;
1446
1447 case TYPE_BOOLEAN:
1448 params[0] = BOOLEAN_TO_FLOAT(*(GLboolean*) p);
1449 break;
1450
1451 case TYPE_MATRIX:
1452 m = *(GLmatrix **) p;
1453 for (i = 0; i < 16; i++)
1454 params[i] = m->m[i];
1455 break;
1456
1457 case TYPE_MATRIX_T:
1458 m = *(GLmatrix **) p;
1459 for (i = 0; i < 16; i++)
1460 params[i] = m->m[transpose[i]];
1461 break;
1462
1463 case TYPE_BIT_0:
1464 case TYPE_BIT_1:
1465 case TYPE_BIT_2:
1466 case TYPE_BIT_3:
1467 case TYPE_BIT_4:
1468 case TYPE_BIT_5:
1469 case TYPE_BIT_6:
1470 case TYPE_BIT_7:
1471 shift = d->type - TYPE_BIT_0;
1472 params[0] = BOOLEAN_TO_FLOAT((*(GLbitfield *) p >> shift) & 1);
1473 break;
1474 }
1475 }
1476
1477 void GLAPIENTRY
1478 _mesa_GetIntegerv(GLenum pname, GLint *params)
1479 {
1480 const struct value_desc *d;
1481 union value v;
1482 GLmatrix *m;
1483 int shift, i;
1484 void *p;
1485
1486 d = find_value("glGetIntegerv", pname, &p, &v);
1487 switch (d->type) {
1488 case TYPE_INVALID:
1489 break;
1490 case TYPE_CONST:
1491 params[0] = d->offset;
1492 break;
1493
1494 case TYPE_FLOAT_4:
1495 params[3] = IROUND(((GLfloat *) p)[3]);
1496 case TYPE_FLOAT_3:
1497 params[2] = IROUND(((GLfloat *) p)[2]);
1498 case TYPE_FLOAT_2:
1499 params[1] = IROUND(((GLfloat *) p)[1]);
1500 case TYPE_FLOAT:
1501 params[0] = IROUND(((GLfloat *) p)[0]);
1502 break;
1503
1504 case TYPE_FLOATN_4:
1505 params[3] = FLOAT_TO_INT(((GLfloat *) p)[3]);
1506 case TYPE_FLOATN_3:
1507 params[2] = FLOAT_TO_INT(((GLfloat *) p)[2]);
1508 case TYPE_FLOATN_2:
1509 params[1] = FLOAT_TO_INT(((GLfloat *) p)[1]);
1510 case TYPE_FLOATN:
1511 params[0] = FLOAT_TO_INT(((GLfloat *) p)[0]);
1512 break;
1513
1514 case TYPE_DOUBLEN_2:
1515 params[1] = FLOAT_TO_INT(((GLdouble *) p)[1]);
1516 case TYPE_DOUBLEN:
1517 params[0] = FLOAT_TO_INT(((GLdouble *) p)[0]);
1518 break;
1519
1520 case TYPE_INT_4:
1521 params[3] = ((GLint *) p)[3];
1522 case TYPE_INT_3:
1523 params[2] = ((GLint *) p)[2];
1524 case TYPE_INT_2:
1525 case TYPE_ENUM_2:
1526 params[1] = ((GLint *) p)[1];
1527 case TYPE_INT:
1528 case TYPE_ENUM:
1529 params[0] = ((GLint *) p)[0];
1530 break;
1531
1532 case TYPE_INT_N:
1533 for (i = 0; i < v.value_int_n.n; i++)
1534 params[i] = v.value_int_n.ints[i];
1535 break;
1536
1537 case TYPE_INT64:
1538 params[0] = INT64_TO_INT(((GLint64 *) p)[0]);
1539 break;
1540
1541 case TYPE_BOOLEAN:
1542 params[0] = BOOLEAN_TO_INT(*(GLboolean*) p);
1543 break;
1544
1545 case TYPE_MATRIX:
1546 m = *(GLmatrix **) p;
1547 for (i = 0; i < 16; i++)
1548 params[i] = FLOAT_TO_INT(m->m[i]);
1549 break;
1550
1551 case TYPE_MATRIX_T:
1552 m = *(GLmatrix **) p;
1553 for (i = 0; i < 16; i++)
1554 params[i] = FLOAT_TO_INT(m->m[transpose[i]]);
1555 break;
1556
1557 case TYPE_BIT_0:
1558 case TYPE_BIT_1:
1559 case TYPE_BIT_2:
1560 case TYPE_BIT_3:
1561 case TYPE_BIT_4:
1562 case TYPE_BIT_5:
1563 case TYPE_BIT_6:
1564 case TYPE_BIT_7:
1565 shift = d->type - TYPE_BIT_0;
1566 params[0] = (*(GLbitfield *) p >> shift) & 1;
1567 break;
1568 }
1569 }
1570
1571 void GLAPIENTRY
1572 _mesa_GetInteger64v(GLenum pname, GLint64 *params)
1573 {
1574 const struct value_desc *d;
1575 union value v;
1576 GLmatrix *m;
1577 int shift, i;
1578 void *p;
1579
1580 d = find_value("glGetInteger64v", pname, &p, &v);
1581 switch (d->type) {
1582 case TYPE_INVALID:
1583 break;
1584 case TYPE_CONST:
1585 params[0] = d->offset;
1586 break;
1587
1588 case TYPE_FLOAT_4:
1589 params[3] = IROUND64(((GLfloat *) p)[3]);
1590 case TYPE_FLOAT_3:
1591 params[2] = IROUND64(((GLfloat *) p)[2]);
1592 case TYPE_FLOAT_2:
1593 params[1] = IROUND64(((GLfloat *) p)[1]);
1594 case TYPE_FLOAT:
1595 params[0] = IROUND64(((GLfloat *) p)[0]);
1596 break;
1597
1598 case TYPE_FLOATN_4:
1599 params[3] = FLOAT_TO_INT64(((GLfloat *) p)[3]);
1600 case TYPE_FLOATN_3:
1601 params[2] = FLOAT_TO_INT64(((GLfloat *) p)[2]);
1602 case TYPE_FLOATN_2:
1603 params[1] = FLOAT_TO_INT64(((GLfloat *) p)[1]);
1604 case TYPE_FLOATN:
1605 params[0] = FLOAT_TO_INT64(((GLfloat *) p)[0]);
1606 break;
1607
1608 case TYPE_DOUBLEN_2:
1609 params[1] = FLOAT_TO_INT64(((GLdouble *) p)[1]);
1610 case TYPE_DOUBLEN:
1611 params[0] = FLOAT_TO_INT64(((GLdouble *) p)[0]);
1612 break;
1613
1614 case TYPE_INT_4:
1615 params[3] = ((GLint *) p)[3];
1616 case TYPE_INT_3:
1617 params[2] = ((GLint *) p)[2];
1618 case TYPE_INT_2:
1619 case TYPE_ENUM_2:
1620 params[1] = ((GLint *) p)[1];
1621 case TYPE_INT:
1622 case TYPE_ENUM:
1623 params[0] = ((GLint *) p)[0];
1624 break;
1625
1626 case TYPE_INT_N:
1627 for (i = 0; i < v.value_int_n.n; i++)
1628 params[i] = INT_TO_BOOLEAN(v.value_int_n.ints[i]);
1629 break;
1630
1631 case TYPE_INT64:
1632 params[0] = ((GLint64 *) p)[0];
1633 break;
1634
1635 case TYPE_BOOLEAN:
1636 params[0] = ((GLboolean*) p)[0];
1637 break;
1638
1639 case TYPE_MATRIX:
1640 m = *(GLmatrix **) p;
1641 for (i = 0; i < 16; i++)
1642 params[i] = FLOAT_TO_INT64(m->m[i]);
1643 break;
1644
1645 case TYPE_MATRIX_T:
1646 m = *(GLmatrix **) p;
1647 for (i = 0; i < 16; i++)
1648 params[i] = FLOAT_TO_INT64(m->m[transpose[i]]);
1649 break;
1650
1651 case TYPE_BIT_0:
1652 case TYPE_BIT_1:
1653 case TYPE_BIT_2:
1654 case TYPE_BIT_3:
1655 case TYPE_BIT_4:
1656 case TYPE_BIT_5:
1657 case TYPE_BIT_6:
1658 case TYPE_BIT_7:
1659 shift = d->type - TYPE_BIT_0;
1660 params[0] = (*(GLbitfield *) p >> shift) & 1;
1661 break;
1662 }
1663 }
1664
1665 void GLAPIENTRY
1666 _mesa_GetDoublev(GLenum pname, GLdouble *params)
1667 {
1668 const struct value_desc *d;
1669 union value v;
1670 GLmatrix *m;
1671 int shift, i;
1672 void *p;
1673
1674 d = find_value("glGetDoublev", pname, &p, &v);
1675 switch (d->type) {
1676 case TYPE_INVALID:
1677 break;
1678 case TYPE_CONST:
1679 params[0] = d->offset;
1680 break;
1681
1682 case TYPE_FLOAT_4:
1683 case TYPE_FLOATN_4:
1684 params[3] = ((GLfloat *) p)[3];
1685 case TYPE_FLOAT_3:
1686 case TYPE_FLOATN_3:
1687 params[2] = ((GLfloat *) p)[2];
1688 case TYPE_FLOAT_2:
1689 case TYPE_FLOATN_2:
1690 params[1] = ((GLfloat *) p)[1];
1691 case TYPE_FLOAT:
1692 case TYPE_FLOATN:
1693 params[0] = ((GLfloat *) p)[0];
1694 break;
1695
1696 case TYPE_DOUBLEN_2:
1697 params[1] = ((GLdouble *) p)[1];
1698 case TYPE_DOUBLEN:
1699 params[0] = ((GLdouble *) p)[0];
1700 break;
1701
1702 case TYPE_INT_4:
1703 params[3] = ((GLint *) p)[3];
1704 case TYPE_INT_3:
1705 params[2] = ((GLint *) p)[2];
1706 case TYPE_INT_2:
1707 case TYPE_ENUM_2:
1708 params[1] = ((GLint *) p)[1];
1709 case TYPE_INT:
1710 case TYPE_ENUM:
1711 params[0] = ((GLint *) p)[0];
1712 break;
1713
1714 case TYPE_INT_N:
1715 for (i = 0; i < v.value_int_n.n; i++)
1716 params[i] = v.value_int_n.ints[i];
1717 break;
1718
1719 case TYPE_INT64:
1720 params[0] = (GLdouble) (((GLint64 *) p)[0]);
1721 break;
1722
1723 case TYPE_BOOLEAN:
1724 params[0] = *(GLboolean*) p;
1725 break;
1726
1727 case TYPE_MATRIX:
1728 m = *(GLmatrix **) p;
1729 for (i = 0; i < 16; i++)
1730 params[i] = m->m[i];
1731 break;
1732
1733 case TYPE_MATRIX_T:
1734 m = *(GLmatrix **) p;
1735 for (i = 0; i < 16; i++)
1736 params[i] = m->m[transpose[i]];
1737 break;
1738
1739 case TYPE_BIT_0:
1740 case TYPE_BIT_1:
1741 case TYPE_BIT_2:
1742 case TYPE_BIT_3:
1743 case TYPE_BIT_4:
1744 case TYPE_BIT_5:
1745 case TYPE_BIT_6:
1746 case TYPE_BIT_7:
1747 shift = d->type - TYPE_BIT_0;
1748 params[0] = (*(GLbitfield *) p >> shift) & 1;
1749 break;
1750 }
1751 }
1752
1753 /**
1754 * Convert a GL texture binding enum such as GL_TEXTURE_BINDING_2D
1755 * into the corresponding Mesa texture target index.
1756 * \return TEXTURE_x_INDEX or -1 if binding is invalid
1757 */
1758 static int
1759 tex_binding_to_index(const struct gl_context *ctx, GLenum binding)
1760 {
1761 switch (binding) {
1762 case GL_TEXTURE_BINDING_1D:
1763 return _mesa_is_desktop_gl(ctx) ? TEXTURE_1D_INDEX : -1;
1764 case GL_TEXTURE_BINDING_2D:
1765 return TEXTURE_2D_INDEX;
1766 case GL_TEXTURE_BINDING_3D:
1767 return ctx->API != API_OPENGLES ? TEXTURE_3D_INDEX : -1;
1768 case GL_TEXTURE_BINDING_CUBE_MAP:
1769 return ctx->Extensions.ARB_texture_cube_map
1770 ? TEXTURE_CUBE_INDEX : -1;
1771 case GL_TEXTURE_BINDING_RECTANGLE:
1772 return _mesa_is_desktop_gl(ctx) && ctx->Extensions.NV_texture_rectangle
1773 ? TEXTURE_RECT_INDEX : -1;
1774 case GL_TEXTURE_BINDING_1D_ARRAY:
1775 return _mesa_is_desktop_gl(ctx) && ctx->Extensions.EXT_texture_array
1776 ? TEXTURE_1D_ARRAY_INDEX : -1;
1777 case GL_TEXTURE_BINDING_2D_ARRAY:
1778 return (_mesa_is_desktop_gl(ctx) && ctx->Extensions.EXT_texture_array)
1779 || _mesa_is_gles3(ctx)
1780 ? TEXTURE_2D_ARRAY_INDEX : -1;
1781 case GL_TEXTURE_BINDING_BUFFER:
1782 return ctx->API == API_OPENGL_CORE &&
1783 ctx->Extensions.ARB_texture_buffer_object ?
1784 TEXTURE_BUFFER_INDEX : -1;
1785 case GL_TEXTURE_BINDING_CUBE_MAP_ARRAY:
1786 return _mesa_is_desktop_gl(ctx) && ctx->Extensions.ARB_texture_cube_map_array
1787 ? TEXTURE_CUBE_ARRAY_INDEX : -1;
1788 case GL_TEXTURE_BINDING_2D_MULTISAMPLE:
1789 return _mesa_is_desktop_gl(ctx) && ctx->Extensions.ARB_texture_multisample
1790 ? TEXTURE_2D_MULTISAMPLE_INDEX : -1;
1791 case GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY:
1792 return _mesa_is_desktop_gl(ctx) && ctx->Extensions.ARB_texture_multisample
1793 ? TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX : -1;
1794 default:
1795 return -1;
1796 }
1797 }
1798
1799 static enum value_type
1800 find_value_indexed(const char *func, GLenum pname, GLuint index, union value *v)
1801 {
1802 GET_CURRENT_CONTEXT(ctx);
1803
1804 switch (pname) {
1805
1806 case GL_BLEND:
1807 if (index >= ctx->Const.MaxDrawBuffers)
1808 goto invalid_value;
1809 if (!ctx->Extensions.EXT_draw_buffers2)
1810 goto invalid_enum;
1811 v->value_int = (ctx->Color.BlendEnabled >> index) & 1;
1812 return TYPE_INT;
1813
1814 case GL_BLEND_SRC:
1815 /* fall-through */
1816 case GL_BLEND_SRC_RGB:
1817 if (index >= ctx->Const.MaxDrawBuffers)
1818 goto invalid_value;
1819 if (!ctx->Extensions.ARB_draw_buffers_blend)
1820 goto invalid_enum;
1821 v->value_int = ctx->Color.Blend[index].SrcRGB;
1822 return TYPE_INT;
1823 case GL_BLEND_SRC_ALPHA:
1824 if (index >= ctx->Const.MaxDrawBuffers)
1825 goto invalid_value;
1826 if (!ctx->Extensions.ARB_draw_buffers_blend)
1827 goto invalid_enum;
1828 v->value_int = ctx->Color.Blend[index].SrcA;
1829 return TYPE_INT;
1830 case GL_BLEND_DST:
1831 /* fall-through */
1832 case GL_BLEND_DST_RGB:
1833 if (index >= ctx->Const.MaxDrawBuffers)
1834 goto invalid_value;
1835 if (!ctx->Extensions.ARB_draw_buffers_blend)
1836 goto invalid_enum;
1837 v->value_int = ctx->Color.Blend[index].DstRGB;
1838 return TYPE_INT;
1839 case GL_BLEND_DST_ALPHA:
1840 if (index >= ctx->Const.MaxDrawBuffers)
1841 goto invalid_value;
1842 if (!ctx->Extensions.ARB_draw_buffers_blend)
1843 goto invalid_enum;
1844 v->value_int = ctx->Color.Blend[index].DstA;
1845 return TYPE_INT;
1846 case GL_BLEND_EQUATION_RGB:
1847 if (index >= ctx->Const.MaxDrawBuffers)
1848 goto invalid_value;
1849 if (!ctx->Extensions.ARB_draw_buffers_blend)
1850 goto invalid_enum;
1851 v->value_int = ctx->Color.Blend[index].EquationRGB;
1852 return TYPE_INT;
1853 case GL_BLEND_EQUATION_ALPHA:
1854 if (index >= ctx->Const.MaxDrawBuffers)
1855 goto invalid_value;
1856 if (!ctx->Extensions.ARB_draw_buffers_blend)
1857 goto invalid_enum;
1858 v->value_int = ctx->Color.Blend[index].EquationA;
1859 return TYPE_INT;
1860
1861 case GL_COLOR_WRITEMASK:
1862 if (index >= ctx->Const.MaxDrawBuffers)
1863 goto invalid_value;
1864 if (!ctx->Extensions.EXT_draw_buffers2)
1865 goto invalid_enum;
1866 v->value_int_4[0] = ctx->Color.ColorMask[index][RCOMP] ? 1 : 0;
1867 v->value_int_4[1] = ctx->Color.ColorMask[index][GCOMP] ? 1 : 0;
1868 v->value_int_4[2] = ctx->Color.ColorMask[index][BCOMP] ? 1 : 0;
1869 v->value_int_4[3] = ctx->Color.ColorMask[index][ACOMP] ? 1 : 0;
1870 return TYPE_INT_4;
1871
1872 case GL_SCISSOR_BOX:
1873 if (index >= ctx->Const.MaxViewports)
1874 goto invalid_value;
1875 v->value_int_4[0] = ctx->Scissor.ScissorArray[index].X;
1876 v->value_int_4[1] = ctx->Scissor.ScissorArray[index].Y;
1877 v->value_int_4[2] = ctx->Scissor.ScissorArray[index].Width;
1878 v->value_int_4[3] = ctx->Scissor.ScissorArray[index].Height;
1879 return TYPE_INT_4;
1880
1881 case GL_VIEWPORT:
1882 if (index >= ctx->Const.MaxViewports)
1883 goto invalid_value;
1884 v->value_float_4[0] = ctx->ViewportArray[index].X;
1885 v->value_float_4[1] = ctx->ViewportArray[index].Y;
1886 v->value_float_4[2] = ctx->ViewportArray[index].Width;
1887 v->value_float_4[3] = ctx->ViewportArray[index].Height;
1888 return TYPE_FLOAT_4;
1889
1890 case GL_DEPTH_RANGE:
1891 if (index >= ctx->Const.MaxViewports)
1892 goto invalid_value;
1893 v->value_double_2[0] = ctx->ViewportArray[index].Near;
1894 v->value_double_2[1] = ctx->ViewportArray[index].Far;
1895 return TYPE_DOUBLEN_2;
1896
1897 case GL_TRANSFORM_FEEDBACK_BUFFER_START:
1898 if (index >= ctx->Const.MaxTransformFeedbackBuffers)
1899 goto invalid_value;
1900 if (!ctx->Extensions.EXT_transform_feedback)
1901 goto invalid_enum;
1902 v->value_int64 = ctx->TransformFeedback.CurrentObject->Offset[index];
1903 return TYPE_INT64;
1904
1905 case GL_TRANSFORM_FEEDBACK_BUFFER_SIZE:
1906 if (index >= ctx->Const.MaxTransformFeedbackBuffers)
1907 goto invalid_value;
1908 if (!ctx->Extensions.EXT_transform_feedback)
1909 goto invalid_enum;
1910 v->value_int64
1911 = ctx->TransformFeedback.CurrentObject->RequestedSize[index];
1912 return TYPE_INT64;
1913
1914 case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING:
1915 if (index >= ctx->Const.MaxTransformFeedbackBuffers)
1916 goto invalid_value;
1917 if (!ctx->Extensions.EXT_transform_feedback)
1918 goto invalid_enum;
1919 v->value_int = ctx->TransformFeedback.CurrentObject->BufferNames[index];
1920 return TYPE_INT;
1921
1922 case GL_UNIFORM_BUFFER_BINDING:
1923 if (index >= ctx->Const.MaxUniformBufferBindings)
1924 goto invalid_value;
1925 if (!ctx->Extensions.ARB_uniform_buffer_object)
1926 goto invalid_enum;
1927 v->value_int = ctx->UniformBufferBindings[index].BufferObject->Name;
1928 return TYPE_INT;
1929
1930 case GL_UNIFORM_BUFFER_START:
1931 if (index >= ctx->Const.MaxUniformBufferBindings)
1932 goto invalid_value;
1933 if (!ctx->Extensions.ARB_uniform_buffer_object)
1934 goto invalid_enum;
1935 v->value_int = ctx->UniformBufferBindings[index].Offset < 0 ? 0 :
1936 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 < 0 ? 0 :
1945 ctx->UniformBufferBindings[index].Size;
1946 return TYPE_INT;
1947
1948 /* ARB_shader_storage_buffer_object */
1949 case GL_SHADER_STORAGE_BUFFER_BINDING:
1950 if (!ctx->Extensions.ARB_shader_storage_buffer_object)
1951 goto invalid_enum;
1952 if (index >= ctx->Const.MaxShaderStorageBufferBindings)
1953 goto invalid_value;
1954 v->value_int = ctx->ShaderStorageBufferBindings[index].BufferObject->Name;
1955 return TYPE_INT;
1956
1957 case GL_SHADER_STORAGE_BUFFER_START:
1958 if (!ctx->Extensions.ARB_shader_storage_buffer_object)
1959 goto invalid_enum;
1960 if (index >= ctx->Const.MaxShaderStorageBufferBindings)
1961 goto invalid_value;
1962 v->value_int = ctx->ShaderStorageBufferBindings[index].Offset < 0 ? 0 :
1963 ctx->ShaderStorageBufferBindings[index].Offset;
1964 return TYPE_INT;
1965
1966 case GL_SHADER_STORAGE_BUFFER_SIZE:
1967 if (!ctx->Extensions.ARB_shader_storage_buffer_object)
1968 goto invalid_enum;
1969 if (index >= ctx->Const.MaxShaderStorageBufferBindings)
1970 goto invalid_value;
1971 v->value_int = ctx->ShaderStorageBufferBindings[index].Size < 0 ? 0 :
1972 ctx->ShaderStorageBufferBindings[index].Size;
1973 return TYPE_INT;
1974
1975 /* ARB_texture_multisample / GL3.2 */
1976 case GL_SAMPLE_MASK_VALUE:
1977 if (index != 0)
1978 goto invalid_value;
1979 if (!ctx->Extensions.ARB_texture_multisample)
1980 goto invalid_enum;
1981 v->value_int = ctx->Multisample.SampleMaskValue;
1982 return TYPE_INT;
1983
1984 case GL_ATOMIC_COUNTER_BUFFER_BINDING:
1985 if (!ctx->Extensions.ARB_shader_atomic_counters)
1986 goto invalid_enum;
1987 if (index >= ctx->Const.MaxAtomicBufferBindings)
1988 goto invalid_value;
1989 v->value_int = ctx->AtomicBufferBindings[index].BufferObject->Name;
1990 return TYPE_INT;
1991
1992 case GL_ATOMIC_COUNTER_BUFFER_START:
1993 if (!ctx->Extensions.ARB_shader_atomic_counters)
1994 goto invalid_enum;
1995 if (index >= ctx->Const.MaxAtomicBufferBindings)
1996 goto invalid_value;
1997 v->value_int64 = ctx->AtomicBufferBindings[index].Offset;
1998 return TYPE_INT64;
1999
2000 case GL_ATOMIC_COUNTER_BUFFER_SIZE:
2001 if (!ctx->Extensions.ARB_shader_atomic_counters)
2002 goto invalid_enum;
2003 if (index >= ctx->Const.MaxAtomicBufferBindings)
2004 goto invalid_value;
2005 v->value_int64 = ctx->AtomicBufferBindings[index].Size;
2006 return TYPE_INT64;
2007
2008 case GL_VERTEX_BINDING_DIVISOR:
2009 if ((!_mesa_is_desktop_gl(ctx) || !ctx->Extensions.ARB_instanced_arrays) &&
2010 !_mesa_is_gles31(ctx))
2011 goto invalid_enum;
2012 if (index >= ctx->Const.Program[MESA_SHADER_VERTEX].MaxAttribs)
2013 goto invalid_value;
2014 v->value_int = ctx->Array.VAO->VertexBinding[VERT_ATTRIB_GENERIC(index)].InstanceDivisor;
2015 return TYPE_INT;
2016
2017 case GL_VERTEX_BINDING_OFFSET:
2018 if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles31(ctx))
2019 goto invalid_enum;
2020 if (index >= ctx->Const.Program[MESA_SHADER_VERTEX].MaxAttribs)
2021 goto invalid_value;
2022 v->value_int = ctx->Array.VAO->VertexBinding[VERT_ATTRIB_GENERIC(index)].Offset;
2023 return TYPE_INT;
2024
2025 case GL_VERTEX_BINDING_STRIDE:
2026 if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles31(ctx))
2027 goto invalid_enum;
2028 if (index >= ctx->Const.Program[MESA_SHADER_VERTEX].MaxAttribs)
2029 goto invalid_value;
2030 v->value_int = ctx->Array.VAO->VertexBinding[VERT_ATTRIB_GENERIC(index)].Stride;
2031 return TYPE_INT;
2032
2033 case GL_VERTEX_BINDING_BUFFER:
2034 if (ctx->API == API_OPENGLES2 && ctx->Version < 31)
2035 goto invalid_enum;
2036 if (index >= ctx->Const.Program[MESA_SHADER_VERTEX].MaxAttribs)
2037 goto invalid_value;
2038 v->value_int = ctx->Array.VAO->VertexBinding[VERT_ATTRIB_GENERIC(index)].BufferObj->Name;
2039 return TYPE_INT;
2040
2041 /* ARB_shader_image_load_store */
2042 case GL_IMAGE_BINDING_NAME: {
2043 struct gl_texture_object *t;
2044
2045 if (!ctx->Extensions.ARB_shader_image_load_store)
2046 goto invalid_enum;
2047 if (index >= ctx->Const.MaxImageUnits)
2048 goto invalid_value;
2049
2050 t = ctx->ImageUnits[index].TexObj;
2051 v->value_int = (t ? t->Name : 0);
2052 return TYPE_INT;
2053 }
2054
2055 case GL_IMAGE_BINDING_LEVEL:
2056 if (!ctx->Extensions.ARB_shader_image_load_store)
2057 goto invalid_enum;
2058 if (index >= ctx->Const.MaxImageUnits)
2059 goto invalid_value;
2060
2061 v->value_int = ctx->ImageUnits[index].Level;
2062 return TYPE_INT;
2063
2064 case GL_IMAGE_BINDING_LAYERED:
2065 if (!ctx->Extensions.ARB_shader_image_load_store)
2066 goto invalid_enum;
2067 if (index >= ctx->Const.MaxImageUnits)
2068 goto invalid_value;
2069
2070 v->value_int = ctx->ImageUnits[index].Layered;
2071 return TYPE_INT;
2072
2073 case GL_IMAGE_BINDING_LAYER:
2074 if (!ctx->Extensions.ARB_shader_image_load_store)
2075 goto invalid_enum;
2076 if (index >= ctx->Const.MaxImageUnits)
2077 goto invalid_value;
2078
2079 v->value_int = ctx->ImageUnits[index].Layer;
2080 return TYPE_INT;
2081
2082 case GL_IMAGE_BINDING_ACCESS:
2083 if (!ctx->Extensions.ARB_shader_image_load_store)
2084 goto invalid_enum;
2085 if (index >= ctx->Const.MaxImageUnits)
2086 goto invalid_value;
2087
2088 v->value_int = ctx->ImageUnits[index].Access;
2089 return TYPE_INT;
2090
2091 case GL_IMAGE_BINDING_FORMAT:
2092 if (!ctx->Extensions.ARB_shader_image_load_store)
2093 goto invalid_enum;
2094 if (index >= ctx->Const.MaxImageUnits)
2095 goto invalid_value;
2096
2097 v->value_int = ctx->ImageUnits[index].Format;
2098 return TYPE_INT;
2099
2100 /* ARB_direct_state_access */
2101 case GL_TEXTURE_BINDING_1D:
2102 case GL_TEXTURE_BINDING_1D_ARRAY:
2103 case GL_TEXTURE_BINDING_2D:
2104 case GL_TEXTURE_BINDING_2D_ARRAY:
2105 case GL_TEXTURE_BINDING_2D_MULTISAMPLE:
2106 case GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY:
2107 case GL_TEXTURE_BINDING_3D:
2108 case GL_TEXTURE_BINDING_BUFFER:
2109 case GL_TEXTURE_BINDING_CUBE_MAP:
2110 case GL_TEXTURE_BINDING_CUBE_MAP_ARRAY:
2111 case GL_TEXTURE_BINDING_RECTANGLE: {
2112 int target;
2113
2114 if (ctx->API != API_OPENGL_CORE)
2115 goto invalid_enum;
2116 target = tex_binding_to_index(ctx, pname);
2117 if (target < 0)
2118 goto invalid_enum;
2119 if (index >= _mesa_max_tex_unit(ctx))
2120 goto invalid_value;
2121
2122 v->value_int = ctx->Texture.Unit[index].CurrentTex[target]->Name;
2123 return TYPE_INT;
2124 }
2125
2126 case GL_SAMPLER_BINDING: {
2127 struct gl_sampler_object *samp;
2128
2129 if (ctx->API != API_OPENGL_CORE)
2130 goto invalid_enum;
2131 if (index >= _mesa_max_tex_unit(ctx))
2132 goto invalid_value;
2133
2134 samp = ctx->Texture.Unit[index].Sampler;
2135 v->value_int = samp ? samp->Name : 0;
2136 return TYPE_INT;
2137 }
2138
2139 case GL_MAX_COMPUTE_WORK_GROUP_COUNT:
2140 if (!_mesa_has_compute_shaders(ctx))
2141 goto invalid_enum;
2142 if (index >= 3)
2143 goto invalid_value;
2144 v->value_int = ctx->Const.MaxComputeWorkGroupCount[index];
2145 return TYPE_INT;
2146
2147 case GL_MAX_COMPUTE_WORK_GROUP_SIZE:
2148 if (!_mesa_has_compute_shaders(ctx))
2149 goto invalid_enum;
2150 if (index >= 3)
2151 goto invalid_value;
2152 v->value_int = ctx->Const.MaxComputeWorkGroupSize[index];
2153 return TYPE_INT;
2154 }
2155
2156 invalid_enum:
2157 _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func,
2158 _mesa_enum_to_string(pname));
2159 return TYPE_INVALID;
2160 invalid_value:
2161 _mesa_error(ctx, GL_INVALID_VALUE, "%s(pname=%s)", func,
2162 _mesa_enum_to_string(pname));
2163 return TYPE_INVALID;
2164 }
2165
2166 void GLAPIENTRY
2167 _mesa_GetBooleani_v( GLenum pname, GLuint index, GLboolean *params )
2168 {
2169 union value v;
2170 enum value_type type =
2171 find_value_indexed("glGetBooleani_v", pname, index, &v);
2172
2173 switch (type) {
2174 case TYPE_INT:
2175 params[0] = INT_TO_BOOLEAN(v.value_int);
2176 break;
2177 case TYPE_INT_4:
2178 params[0] = INT_TO_BOOLEAN(v.value_int_4[0]);
2179 params[1] = INT_TO_BOOLEAN(v.value_int_4[1]);
2180 params[2] = INT_TO_BOOLEAN(v.value_int_4[2]);
2181 params[3] = INT_TO_BOOLEAN(v.value_int_4[3]);
2182 break;
2183 case TYPE_INT64:
2184 params[0] = INT64_TO_BOOLEAN(v.value_int64);
2185 break;
2186 default:
2187 ; /* nothing - GL error was recorded */
2188 }
2189 }
2190
2191 void GLAPIENTRY
2192 _mesa_GetIntegeri_v( GLenum pname, GLuint index, GLint *params )
2193 {
2194 union value v;
2195 enum value_type type =
2196 find_value_indexed("glGetIntegeri_v", pname, index, &v);
2197
2198 switch (type) {
2199 case TYPE_FLOAT_4:
2200 case TYPE_FLOATN_4:
2201 params[3] = IROUND(v.value_float_4[3]);
2202 case TYPE_FLOAT_3:
2203 case TYPE_FLOATN_3:
2204 params[2] = IROUND(v.value_float_4[2]);
2205 case TYPE_FLOAT_2:
2206 case TYPE_FLOATN_2:
2207 params[1] = IROUND(v.value_float_4[1]);
2208 case TYPE_FLOAT:
2209 case TYPE_FLOATN:
2210 params[0] = IROUND(v.value_float_4[0]);
2211 break;
2212
2213 case TYPE_DOUBLEN_2:
2214 params[1] = IROUND(v.value_double_2[1]);
2215 case TYPE_DOUBLEN:
2216 params[0] = IROUND(v.value_double_2[0]);
2217 break;
2218
2219 case TYPE_INT:
2220 params[0] = v.value_int;
2221 break;
2222 case TYPE_INT_4:
2223 params[0] = v.value_int_4[0];
2224 params[1] = v.value_int_4[1];
2225 params[2] = v.value_int_4[2];
2226 params[3] = v.value_int_4[3];
2227 break;
2228 case TYPE_INT64:
2229 params[0] = INT64_TO_INT(v.value_int64);
2230 break;
2231 default:
2232 ; /* nothing - GL error was recorded */
2233 }
2234 }
2235
2236 void GLAPIENTRY
2237 _mesa_GetInteger64i_v( GLenum pname, GLuint index, GLint64 *params )
2238 {
2239 union value v;
2240 enum value_type type =
2241 find_value_indexed("glGetInteger64i_v", pname, index, &v);
2242
2243 switch (type) {
2244 case TYPE_INT:
2245 params[0] = v.value_int;
2246 break;
2247 case TYPE_INT_4:
2248 params[0] = v.value_int_4[0];
2249 params[1] = v.value_int_4[1];
2250 params[2] = v.value_int_4[2];
2251 params[3] = v.value_int_4[3];
2252 break;
2253 case TYPE_INT64:
2254 params[0] = v.value_int64;
2255 break;
2256 default:
2257 ; /* nothing - GL error was recorded */
2258 }
2259 }
2260
2261 void GLAPIENTRY
2262 _mesa_GetFloati_v(GLenum pname, GLuint index, GLfloat *params)
2263 {
2264 int i;
2265 GLmatrix *m;
2266 union value v;
2267 enum value_type type =
2268 find_value_indexed("glGetFloati_v", pname, index, &v);
2269
2270 switch (type) {
2271 case TYPE_FLOAT_4:
2272 case TYPE_FLOATN_4:
2273 params[3] = v.value_float_4[3];
2274 case TYPE_FLOAT_3:
2275 case TYPE_FLOATN_3:
2276 params[2] = v.value_float_4[2];
2277 case TYPE_FLOAT_2:
2278 case TYPE_FLOATN_2:
2279 params[1] = v.value_float_4[1];
2280 case TYPE_FLOAT:
2281 case TYPE_FLOATN:
2282 params[0] = v.value_float_4[0];
2283 break;
2284
2285 case TYPE_DOUBLEN_2:
2286 params[1] = (GLfloat) v.value_double_2[1];
2287 case TYPE_DOUBLEN:
2288 params[0] = (GLfloat) v.value_double_2[0];
2289 break;
2290
2291 case TYPE_INT_4:
2292 params[3] = (GLfloat) v.value_int_4[3];
2293 case TYPE_INT_3:
2294 params[2] = (GLfloat) v.value_int_4[2];
2295 case TYPE_INT_2:
2296 case TYPE_ENUM_2:
2297 params[1] = (GLfloat) v.value_int_4[1];
2298 case TYPE_INT:
2299 case TYPE_ENUM:
2300 params[0] = (GLfloat) v.value_int_4[0];
2301 break;
2302
2303 case TYPE_INT_N:
2304 for (i = 0; i < v.value_int_n.n; i++)
2305 params[i] = INT_TO_FLOAT(v.value_int_n.ints[i]);
2306 break;
2307
2308 case TYPE_INT64:
2309 params[0] = (GLfloat) v.value_int64;
2310 break;
2311
2312 case TYPE_BOOLEAN:
2313 params[0] = BOOLEAN_TO_FLOAT(v.value_bool);
2314 break;
2315
2316 case TYPE_MATRIX:
2317 m = *(GLmatrix **) &v;
2318 for (i = 0; i < 16; i++)
2319 params[i] = m->m[i];
2320 break;
2321
2322 case TYPE_MATRIX_T:
2323 m = *(GLmatrix **) &v;
2324 for (i = 0; i < 16; i++)
2325 params[i] = m->m[transpose[i]];
2326 break;
2327
2328 default:
2329 ;
2330 }
2331 }
2332
2333 void GLAPIENTRY
2334 _mesa_GetDoublei_v(GLenum pname, GLuint index, GLdouble *params)
2335 {
2336 int i;
2337 GLmatrix *m;
2338 union value v;
2339 enum value_type type =
2340 find_value_indexed("glGetDoublei_v", pname, index, &v);
2341
2342 switch (type) {
2343 case TYPE_FLOAT_4:
2344 case TYPE_FLOATN_4:
2345 params[3] = (GLdouble) v.value_float_4[3];
2346 case TYPE_FLOAT_3:
2347 case TYPE_FLOATN_3:
2348 params[2] = (GLdouble) v.value_float_4[2];
2349 case TYPE_FLOAT_2:
2350 case TYPE_FLOATN_2:
2351 params[1] = (GLdouble) v.value_float_4[1];
2352 case TYPE_FLOAT:
2353 case TYPE_FLOATN:
2354 params[0] = (GLdouble) v.value_float_4[0];
2355 break;
2356
2357 case TYPE_DOUBLEN_2:
2358 params[1] = v.value_double_2[1];
2359 case TYPE_DOUBLEN:
2360 params[0] = v.value_double_2[0];
2361 break;
2362
2363 case TYPE_INT_4:
2364 params[3] = (GLdouble) v.value_int_4[3];
2365 case TYPE_INT_3:
2366 params[2] = (GLdouble) v.value_int_4[2];
2367 case TYPE_INT_2:
2368 case TYPE_ENUM_2:
2369 params[1] = (GLdouble) v.value_int_4[1];
2370 case TYPE_INT:
2371 case TYPE_ENUM:
2372 params[0] = (GLdouble) v.value_int_4[0];
2373 break;
2374
2375 case TYPE_INT_N:
2376 for (i = 0; i < v.value_int_n.n; i++)
2377 params[i] = (GLdouble) INT_TO_FLOAT(v.value_int_n.ints[i]);
2378 break;
2379
2380 case TYPE_INT64:
2381 params[0] = (GLdouble) v.value_int64;
2382 break;
2383
2384 case TYPE_BOOLEAN:
2385 params[0] = (GLdouble) BOOLEAN_TO_FLOAT(v.value_bool);
2386 break;
2387
2388 case TYPE_MATRIX:
2389 m = *(GLmatrix **) &v;
2390 for (i = 0; i < 16; i++)
2391 params[i] = (GLdouble) m->m[i];
2392 break;
2393
2394 case TYPE_MATRIX_T:
2395 m = *(GLmatrix **) &v;
2396 for (i = 0; i < 16; i++)
2397 params[i] = (GLdouble) m->m[transpose[i]];
2398 break;
2399
2400 default:
2401 ;
2402 }
2403 }
2404
2405 void GLAPIENTRY
2406 _mesa_GetFixedv(GLenum pname, GLfixed *params)
2407 {
2408 const struct value_desc *d;
2409 union value v;
2410 GLmatrix *m;
2411 int shift, i;
2412 void *p;
2413
2414 d = find_value("glGetDoublev", pname, &p, &v);
2415 switch (d->type) {
2416 case TYPE_INVALID:
2417 break;
2418 case TYPE_CONST:
2419 params[0] = INT_TO_FIXED(d->offset);
2420 break;
2421
2422 case TYPE_FLOAT_4:
2423 case TYPE_FLOATN_4:
2424 params[3] = FLOAT_TO_FIXED(((GLfloat *) p)[3]);
2425 case TYPE_FLOAT_3:
2426 case TYPE_FLOATN_3:
2427 params[2] = FLOAT_TO_FIXED(((GLfloat *) p)[2]);
2428 case TYPE_FLOAT_2:
2429 case TYPE_FLOATN_2:
2430 params[1] = FLOAT_TO_FIXED(((GLfloat *) p)[1]);
2431 case TYPE_FLOAT:
2432 case TYPE_FLOATN:
2433 params[0] = FLOAT_TO_FIXED(((GLfloat *) p)[0]);
2434 break;
2435
2436 case TYPE_DOUBLEN_2:
2437 params[1] = FLOAT_TO_FIXED(((GLdouble *) p)[1]);
2438 case TYPE_DOUBLEN:
2439 params[0] = FLOAT_TO_FIXED(((GLdouble *) p)[0]);
2440 break;
2441
2442 case TYPE_INT_4:
2443 params[3] = INT_TO_FIXED(((GLint *) p)[3]);
2444 case TYPE_INT_3:
2445 params[2] = INT_TO_FIXED(((GLint *) p)[2]);
2446 case TYPE_INT_2:
2447 case TYPE_ENUM_2:
2448 params[1] = INT_TO_FIXED(((GLint *) p)[1]);
2449 case TYPE_INT:
2450 case TYPE_ENUM:
2451 params[0] = INT_TO_FIXED(((GLint *) p)[0]);
2452 break;
2453
2454 case TYPE_INT_N:
2455 for (i = 0; i < v.value_int_n.n; i++)
2456 params[i] = INT_TO_FIXED(v.value_int_n.ints[i]);
2457 break;
2458
2459 case TYPE_INT64:
2460 params[0] = ((GLint64 *) p)[0];
2461 break;
2462
2463 case TYPE_BOOLEAN:
2464 params[0] = BOOLEAN_TO_FIXED(((GLboolean*) p)[0]);
2465 break;
2466
2467 case TYPE_MATRIX:
2468 m = *(GLmatrix **) p;
2469 for (i = 0; i < 16; i++)
2470 params[i] = FLOAT_TO_FIXED(m->m[i]);
2471 break;
2472
2473 case TYPE_MATRIX_T:
2474 m = *(GLmatrix **) p;
2475 for (i = 0; i < 16; i++)
2476 params[i] = FLOAT_TO_FIXED(m->m[transpose[i]]);
2477 break;
2478
2479 case TYPE_BIT_0:
2480 case TYPE_BIT_1:
2481 case TYPE_BIT_2:
2482 case TYPE_BIT_3:
2483 case TYPE_BIT_4:
2484 case TYPE_BIT_5:
2485 case TYPE_BIT_6:
2486 case TYPE_BIT_7:
2487 shift = d->type - TYPE_BIT_0;
2488 params[0] = BOOLEAN_TO_FIXED((*(GLbitfield *) p >> shift) & 1);
2489 break;
2490 }
2491 }