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mesa: add GL_EXT_window_rectangles state storage/retrieval functionality
[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 "debug_output.h"
30 #include "enable.h"
31 #include "enums.h"
32 #include "errors.h"
33 #include "extensions.h"
34 #include "get.h"
35 #include "macros.h"
36 #include "mtypes.h"
37 #include "state.h"
38 #include "texcompress.h"
39 #include "texstate.h"
40 #include "framebuffer.h"
41 #include "samplerobj.h"
42 #include "stencil.h"
43
44 /* This is a table driven implemetation of the glGet*v() functions.
45 * The basic idea is that most getters just look up an int somewhere
46 * in struct gl_context and then convert it to a bool or float according to
47 * which of glGetIntegerv() glGetBooleanv() etc is being called.
48 * Instead of generating code to do this, we can just record the enum
49 * value and the offset into struct gl_context in an array of structs. Then
50 * in glGet*(), we lookup the struct for the enum in question, and use
51 * the offset to get the int we need.
52 *
53 * Sometimes we need to look up a float, a boolean, a bit in a
54 * bitfield, a matrix or other types instead, so we need to track the
55 * type of the value in struct gl_context. And sometimes the value isn't in
56 * struct gl_context but in the drawbuffer, the array object, current texture
57 * unit, or maybe it's a computed value. So we need to also track
58 * where or how to find the value. Finally, we sometimes need to
59 * check that one of a number of extensions are enabled, the GL
60 * version or flush or call _mesa_update_state(). This is done by
61 * attaching optional extra information to the value description
62 * struct, it's sort of like an array of opcodes that describe extra
63 * checks or actions.
64 *
65 * Putting all this together we end up with struct value_desc below,
66 * and with a couple of macros to help, the table of struct value_desc
67 * is about as concise as the specification in the old python script.
68 */
69
70 #define FLOAT_TO_BOOLEAN(X) ( (X) ? GL_TRUE : GL_FALSE )
71 #define FLOAT_TO_FIXED(F) ( ((F) * 65536.0f > INT_MAX) ? INT_MAX : \
72 ((F) * 65536.0f < INT_MIN) ? INT_MIN : \
73 (GLint) ((F) * 65536.0f) )
74
75 #define INT_TO_BOOLEAN(I) ( (I) ? GL_TRUE : GL_FALSE )
76 #define INT_TO_FIXED(I) ( ((I) > SHRT_MAX) ? INT_MAX : \
77 ((I) < SHRT_MIN) ? INT_MIN : \
78 (GLint) ((I) * 65536) )
79
80 #define INT64_TO_BOOLEAN(I) ( (I) ? GL_TRUE : GL_FALSE )
81 #define INT64_TO_INT(I) ( (GLint)((I > INT_MAX) ? INT_MAX : ((I < INT_MIN) ? INT_MIN : (I))) )
82
83 #define BOOLEAN_TO_INT(B) ( (GLint) (B) )
84 #define BOOLEAN_TO_INT64(B) ( (GLint64) (B) )
85 #define BOOLEAN_TO_FLOAT(B) ( (B) ? 1.0F : 0.0F )
86 #define BOOLEAN_TO_FIXED(B) ( (GLint) ((B) ? 1 : 0) << 16 )
87
88 #define ENUM_TO_INT64(E) ( (GLint64) (E) )
89 #define ENUM_TO_FIXED(E) (E)
90
91 enum value_type {
92 TYPE_INVALID,
93 TYPE_INT,
94 TYPE_INT_2,
95 TYPE_INT_3,
96 TYPE_INT_4,
97 TYPE_INT_N,
98 TYPE_INT64,
99 TYPE_ENUM,
100 TYPE_ENUM_2,
101 TYPE_BOOLEAN,
102 TYPE_BIT_0,
103 TYPE_BIT_1,
104 TYPE_BIT_2,
105 TYPE_BIT_3,
106 TYPE_BIT_4,
107 TYPE_BIT_5,
108 TYPE_BIT_6,
109 TYPE_BIT_7,
110 TYPE_FLOAT,
111 TYPE_FLOAT_2,
112 TYPE_FLOAT_3,
113 TYPE_FLOAT_4,
114 TYPE_FLOATN,
115 TYPE_FLOATN_2,
116 TYPE_FLOATN_3,
117 TYPE_FLOATN_4,
118 TYPE_DOUBLEN,
119 TYPE_DOUBLEN_2,
120 TYPE_MATRIX,
121 TYPE_MATRIX_T,
122 TYPE_CONST
123 };
124
125 enum value_location {
126 LOC_BUFFER,
127 LOC_CONTEXT,
128 LOC_ARRAY,
129 LOC_TEXUNIT,
130 LOC_CUSTOM
131 };
132
133 enum value_extra {
134 EXTRA_END = 0x8000,
135 EXTRA_VERSION_30,
136 EXTRA_VERSION_31,
137 EXTRA_VERSION_32,
138 EXTRA_VERSION_40,
139 EXTRA_API_GL,
140 EXTRA_API_GL_CORE,
141 EXTRA_API_ES2,
142 EXTRA_API_ES3,
143 EXTRA_API_ES31,
144 EXTRA_NEW_BUFFERS,
145 EXTRA_NEW_FRAG_CLAMP,
146 EXTRA_VALID_DRAW_BUFFER,
147 EXTRA_VALID_TEXTURE_UNIT,
148 EXTRA_VALID_CLIP_DISTANCE,
149 EXTRA_FLUSH_CURRENT,
150 EXTRA_GLSL_130,
151 EXTRA_EXT_UBO_GS,
152 EXTRA_EXT_ATOMICS_GS,
153 EXTRA_EXT_SHADER_IMAGE_GS,
154 EXTRA_EXT_ATOMICS_TESS,
155 EXTRA_EXT_SHADER_IMAGE_TESS,
156 EXTRA_EXT_SSBO_GS,
157 EXTRA_EXT_FB_NO_ATTACH_GS,
158 EXTRA_EXT_ES_GS,
159 };
160
161 #define NO_EXTRA NULL
162 #define NO_OFFSET 0
163
164 struct value_desc {
165 GLenum pname;
166 GLubyte location; /**< enum value_location */
167 GLubyte type; /**< enum value_type */
168 int offset;
169 const int *extra;
170 };
171
172 union value {
173 GLfloat value_float;
174 GLfloat value_float_4[4];
175 GLdouble value_double_2[2];
176 GLmatrix *value_matrix;
177 GLint value_int;
178 GLint value_int_4[4];
179 GLint64 value_int64;
180 GLenum value_enum;
181
182 /* Sigh, see GL_COMPRESSED_TEXTURE_FORMATS_ARB handling */
183 struct {
184 GLint n, ints[100];
185 } value_int_n;
186 GLboolean value_bool;
187 };
188
189 #define BUFFER_FIELD(field, type) \
190 LOC_BUFFER, type, offsetof(struct gl_framebuffer, field)
191 #define CONTEXT_FIELD(field, type) \
192 LOC_CONTEXT, type, offsetof(struct gl_context, field)
193 #define ARRAY_FIELD(field, type) \
194 LOC_ARRAY, type, offsetof(struct gl_vertex_array_object, field)
195 #undef CONST /* already defined through windows.h */
196 #define CONST(value) \
197 LOC_CONTEXT, TYPE_CONST, value
198
199 #define BUFFER_INT(field) BUFFER_FIELD(field, TYPE_INT)
200 #define BUFFER_ENUM(field) BUFFER_FIELD(field, TYPE_ENUM)
201 #define BUFFER_BOOL(field) BUFFER_FIELD(field, TYPE_BOOLEAN)
202
203 #define CONTEXT_INT(field) CONTEXT_FIELD(field, TYPE_INT)
204 #define CONTEXT_INT2(field) CONTEXT_FIELD(field, TYPE_INT_2)
205 #define CONTEXT_INT64(field) CONTEXT_FIELD(field, TYPE_INT64)
206 #define CONTEXT_ENUM(field) CONTEXT_FIELD(field, TYPE_ENUM)
207 #define CONTEXT_ENUM2(field) CONTEXT_FIELD(field, TYPE_ENUM_2)
208 #define CONTEXT_BOOL(field) CONTEXT_FIELD(field, TYPE_BOOLEAN)
209 #define CONTEXT_BIT0(field) CONTEXT_FIELD(field, TYPE_BIT_0)
210 #define CONTEXT_BIT1(field) CONTEXT_FIELD(field, TYPE_BIT_1)
211 #define CONTEXT_BIT2(field) CONTEXT_FIELD(field, TYPE_BIT_2)
212 #define CONTEXT_BIT3(field) CONTEXT_FIELD(field, TYPE_BIT_3)
213 #define CONTEXT_BIT4(field) CONTEXT_FIELD(field, TYPE_BIT_4)
214 #define CONTEXT_BIT5(field) CONTEXT_FIELD(field, TYPE_BIT_5)
215 #define CONTEXT_BIT6(field) CONTEXT_FIELD(field, TYPE_BIT_6)
216 #define CONTEXT_BIT7(field) CONTEXT_FIELD(field, TYPE_BIT_7)
217 #define CONTEXT_FLOAT(field) CONTEXT_FIELD(field, TYPE_FLOAT)
218 #define CONTEXT_FLOAT2(field) CONTEXT_FIELD(field, TYPE_FLOAT_2)
219 #define CONTEXT_FLOAT3(field) CONTEXT_FIELD(field, TYPE_FLOAT_3)
220 #define CONTEXT_FLOAT4(field) CONTEXT_FIELD(field, TYPE_FLOAT_4)
221 #define CONTEXT_MATRIX(field) CONTEXT_FIELD(field, TYPE_MATRIX)
222 #define CONTEXT_MATRIX_T(field) CONTEXT_FIELD(field, TYPE_MATRIX_T)
223
224 #define ARRAY_INT(field) ARRAY_FIELD(field, TYPE_INT)
225 #define ARRAY_ENUM(field) ARRAY_FIELD(field, TYPE_ENUM)
226 #define ARRAY_BOOL(field) ARRAY_FIELD(field, TYPE_BOOLEAN)
227
228 #define EXT(f) \
229 offsetof(struct gl_extensions, f)
230
231 #define EXTRA_EXT(e) \
232 static const int extra_##e[] = { \
233 EXT(e), EXTRA_END \
234 }
235
236 #define EXTRA_EXT2(e1, e2) \
237 static const int extra_##e1##_##e2[] = { \
238 EXT(e1), EXT(e2), EXTRA_END \
239 }
240
241 /* The 'extra' mechanism is a way to specify extra checks (such as
242 * extensions or specific gl versions) or actions (flush current, new
243 * buffers) that we need to do before looking up an enum. We need to
244 * declare them all up front so we can refer to them in the value_desc
245 * structs below.
246 *
247 * Each EXTRA_ will be executed. For EXTRA_* enums of extensions and API
248 * versions, listing multiple ones in an array means an error will be thrown
249 * only if none of them are available. If you need to check for "AND"
250 * behavior, you would need to make a custom EXTRA_ enum.
251 */
252
253 static const int extra_new_buffers[] = {
254 EXTRA_NEW_BUFFERS,
255 EXTRA_END
256 };
257
258 static const int extra_new_frag_clamp[] = {
259 EXTRA_NEW_FRAG_CLAMP,
260 EXTRA_END
261 };
262
263 static const int extra_valid_draw_buffer[] = {
264 EXTRA_VALID_DRAW_BUFFER,
265 EXTRA_END
266 };
267
268 static const int extra_valid_texture_unit[] = {
269 EXTRA_VALID_TEXTURE_UNIT,
270 EXTRA_END
271 };
272
273 static const int extra_valid_clip_distance[] = {
274 EXTRA_VALID_CLIP_DISTANCE,
275 EXTRA_END
276 };
277
278 static const int extra_flush_current_valid_texture_unit[] = {
279 EXTRA_FLUSH_CURRENT,
280 EXTRA_VALID_TEXTURE_UNIT,
281 EXTRA_END
282 };
283
284 static const int extra_flush_current[] = {
285 EXTRA_FLUSH_CURRENT,
286 EXTRA_END
287 };
288
289 static const int extra_EXT_texture_integer_and_new_buffers[] = {
290 EXT(EXT_texture_integer),
291 EXTRA_NEW_BUFFERS,
292 EXTRA_END
293 };
294
295 static const int extra_GLSL_130_es3[] = {
296 EXTRA_GLSL_130,
297 EXTRA_API_ES3,
298 EXTRA_END
299 };
300
301 static const int extra_texture_buffer_object[] = {
302 EXTRA_API_GL_CORE,
303 EXTRA_VERSION_31,
304 EXT(ARB_texture_buffer_object),
305 EXTRA_END
306 };
307
308 static const int extra_ARB_transform_feedback2_api_es3[] = {
309 EXT(ARB_transform_feedback2),
310 EXTRA_API_ES3,
311 EXTRA_END
312 };
313
314 static const int extra_ARB_uniform_buffer_object_and_geometry_shader[] = {
315 EXTRA_EXT_UBO_GS,
316 EXTRA_END
317 };
318
319 static const int extra_ARB_ES2_compatibility_api_es2[] = {
320 EXT(ARB_ES2_compatibility),
321 EXTRA_API_ES2,
322 EXTRA_END
323 };
324
325 static const int extra_ARB_ES3_compatibility_api_es3[] = {
326 EXT(ARB_ES3_compatibility),
327 EXTRA_API_ES3,
328 EXTRA_END
329 };
330
331 static const int extra_EXT_framebuffer_sRGB_and_new_buffers[] = {
332 EXT(EXT_framebuffer_sRGB),
333 EXTRA_NEW_BUFFERS,
334 EXTRA_END
335 };
336
337 static const int extra_EXT_packed_float[] = {
338 EXT(EXT_packed_float),
339 EXTRA_NEW_BUFFERS,
340 EXTRA_END
341 };
342
343 static const int extra_EXT_texture_array_es3[] = {
344 EXT(EXT_texture_array),
345 EXTRA_API_ES3,
346 EXTRA_END
347 };
348
349 static const int extra_ARB_shader_atomic_counters_and_geometry_shader[] = {
350 EXTRA_EXT_ATOMICS_GS,
351 EXTRA_END
352 };
353
354 static const int extra_ARB_shader_image_load_store_and_geometry_shader[] = {
355 EXTRA_EXT_SHADER_IMAGE_GS,
356 EXTRA_END
357 };
358
359 static const int extra_ARB_shader_atomic_counters_and_tessellation[] = {
360 EXTRA_EXT_ATOMICS_TESS,
361 EXTRA_END
362 };
363
364 static const int extra_ARB_shader_image_load_store_and_tessellation[] = {
365 EXTRA_EXT_SHADER_IMAGE_TESS,
366 EXTRA_END
367 };
368
369 /* HACK: remove when ARB_compute_shader is actually supported */
370 static const int extra_ARB_compute_shader_es31[] = {
371 EXT(ARB_compute_shader),
372 EXTRA_API_ES31,
373 EXTRA_END
374 };
375
376 static const int extra_ARB_shader_storage_buffer_object_es31[] = {
377 EXT(ARB_shader_storage_buffer_object),
378 EXTRA_API_ES31,
379 EXTRA_END
380 };
381
382 static const int extra_ARB_shader_storage_buffer_object_and_geometry_shader[] = {
383 EXTRA_EXT_SSBO_GS,
384 EXTRA_END
385 };
386
387 static const int extra_ARB_shader_image_load_store_shader_storage_buffer_object_es31[] = {
388 EXT(ARB_shader_image_load_store),
389 EXT(ARB_shader_storage_buffer_object),
390 EXTRA_API_ES31,
391 EXTRA_END
392 };
393
394 static const int extra_ARB_framebuffer_no_attachments_and_geometry_shader[] = {
395 EXTRA_EXT_FB_NO_ATTACH_GS,
396 EXTRA_END
397 };
398
399 static const int extra_ARB_viewport_array_or_oes_geometry_shader[] = {
400 EXT(ARB_viewport_array),
401 EXTRA_EXT_ES_GS,
402 EXTRA_END
403 };
404
405 static const int extra_ARB_gpu_shader5_or_oes_geometry_shader[] = {
406 EXT(ARB_gpu_shader5),
407 EXTRA_EXT_ES_GS,
408 EXTRA_END
409 };
410
411 static const int extra_ARB_gpu_shader5_or_OES_sample_variables[] = {
412 EXT(ARB_gpu_shader5),
413 EXT(OES_sample_variables),
414 };
415
416 EXTRA_EXT(ARB_texture_cube_map);
417 EXTRA_EXT(EXT_texture_array);
418 EXTRA_EXT(NV_fog_distance);
419 EXTRA_EXT(EXT_texture_filter_anisotropic);
420 EXTRA_EXT(NV_point_sprite);
421 EXTRA_EXT(NV_texture_rectangle);
422 EXTRA_EXT(EXT_stencil_two_side);
423 EXTRA_EXT(EXT_depth_bounds_test);
424 EXTRA_EXT(ARB_depth_clamp);
425 EXTRA_EXT(ATI_fragment_shader);
426 EXTRA_EXT(EXT_provoking_vertex);
427 EXTRA_EXT(ARB_fragment_shader);
428 EXTRA_EXT(ARB_fragment_program);
429 EXTRA_EXT2(ARB_framebuffer_object, EXT_framebuffer_multisample);
430 EXTRA_EXT(ARB_seamless_cube_map);
431 EXTRA_EXT(ARB_sync);
432 EXTRA_EXT(ARB_vertex_shader);
433 EXTRA_EXT(EXT_transform_feedback);
434 EXTRA_EXT(ARB_transform_feedback3);
435 EXTRA_EXT(EXT_pixel_buffer_object);
436 EXTRA_EXT(ARB_vertex_program);
437 EXTRA_EXT2(NV_point_sprite, ARB_point_sprite);
438 EXTRA_EXT2(ARB_vertex_program, ARB_fragment_program);
439 EXTRA_EXT(ARB_color_buffer_float);
440 EXTRA_EXT(EXT_framebuffer_sRGB);
441 EXTRA_EXT(OES_EGL_image_external);
442 EXTRA_EXT(ARB_blend_func_extended);
443 EXTRA_EXT(ARB_uniform_buffer_object);
444 EXTRA_EXT(ARB_timer_query);
445 EXTRA_EXT(ARB_texture_cube_map_array);
446 EXTRA_EXT(ARB_texture_buffer_range);
447 EXTRA_EXT(ARB_texture_multisample);
448 EXTRA_EXT(ARB_texture_gather);
449 EXTRA_EXT(ARB_shader_atomic_counters);
450 EXTRA_EXT(ARB_draw_indirect);
451 EXTRA_EXT(ARB_shader_image_load_store);
452 EXTRA_EXT(ARB_viewport_array);
453 EXTRA_EXT(ARB_query_buffer_object);
454 EXTRA_EXT2(ARB_transform_feedback3, ARB_gpu_shader5);
455 EXTRA_EXT(INTEL_performance_query);
456 EXTRA_EXT(ARB_explicit_uniform_location);
457 EXTRA_EXT(ARB_clip_control);
458 EXTRA_EXT(EXT_polygon_offset_clamp);
459 EXTRA_EXT(ARB_framebuffer_no_attachments);
460 EXTRA_EXT(ARB_tessellation_shader);
461 EXTRA_EXT(ARB_shader_subroutine);
462 EXTRA_EXT(ARB_shader_storage_buffer_object);
463 EXTRA_EXT(ARB_indirect_parameters);
464 EXTRA_EXT(ATI_meminfo);
465 EXTRA_EXT(NVX_gpu_memory_info);
466 EXTRA_EXT(ARB_cull_distance);
467 EXTRA_EXT(EXT_window_rectangles);
468
469 static const int
470 extra_ARB_color_buffer_float_or_glcore[] = {
471 EXT(ARB_color_buffer_float),
472 EXTRA_API_GL_CORE,
473 EXTRA_END
474 };
475
476 static const int
477 extra_NV_primitive_restart[] = {
478 EXT(NV_primitive_restart),
479 EXTRA_END
480 };
481
482 static const int extra_version_30[] = { EXTRA_VERSION_30, EXTRA_END };
483 static const int extra_version_31[] = { EXTRA_VERSION_31, EXTRA_END };
484 static const int extra_version_32[] = { EXTRA_VERSION_32, EXTRA_END };
485
486 static const int extra_gl30_es3[] = {
487 EXTRA_VERSION_30,
488 EXTRA_API_ES3,
489 EXTRA_END,
490 };
491
492 static const int extra_gl32_es3[] = {
493 EXTRA_VERSION_32,
494 EXTRA_API_ES3,
495 EXTRA_END,
496 };
497
498 static const int extra_version_32_OES_geometry_shader[] = {
499 EXTRA_VERSION_32,
500 EXTRA_EXT_ES_GS,
501 EXTRA_END
502 };
503
504 static const int extra_gl40_ARB_sample_shading[] = {
505 EXTRA_VERSION_40,
506 EXT(ARB_sample_shading),
507 EXTRA_END
508 };
509
510 static const int
511 extra_ARB_vertex_program_api_es2[] = {
512 EXT(ARB_vertex_program),
513 EXTRA_API_ES2,
514 EXTRA_END
515 };
516
517 /* The ReadBuffer get token is valid under either full GL or under
518 * GLES2 if the NV_read_buffer extension is available. */
519 static const int
520 extra_NV_read_buffer_api_gl[] = {
521 EXTRA_API_ES2,
522 EXTRA_API_GL,
523 EXTRA_END
524 };
525
526 static const int extra_core_ARB_color_buffer_float_and_new_buffers[] = {
527 EXTRA_API_GL_CORE,
528 EXT(ARB_color_buffer_float),
529 EXTRA_NEW_BUFFERS,
530 EXTRA_END
531 };
532
533 /* This is the big table describing all the enums we accept in
534 * glGet*v(). The table is partitioned into six parts: enums
535 * understood by all GL APIs (OpenGL, GLES and GLES2), enums shared
536 * between OpenGL and GLES, enums exclusive to GLES, etc for the
537 * remaining combinations. To look up the enums valid in a given API
538 * we will use a hash table specific to that API. These tables are in
539 * turn generated at build time and included through get_hash.h.
540 */
541
542 #include "get_hash.h"
543
544 /* All we need now is a way to look up the value struct from the enum.
545 * The code generated by gcc for the old generated big switch
546 * statement is a big, balanced, open coded if/else tree, essentially
547 * an unrolled binary search. It would be natural to sort the new
548 * enum table and use bsearch(), but we will use a read-only hash
549 * table instead. bsearch() has a nice guaranteed worst case
550 * performance, but we're also guaranteed to hit that worst case
551 * (log2(n) iterations) for about half the enums. Instead, using an
552 * open addressing hash table, we can find the enum on the first try
553 * for 80% of the enums, 1 collision for 10% and never more than 5
554 * collisions for any enum (typical numbers). And the code is very
555 * simple, even though it feels a little magic. */
556
557 /**
558 * Handle irregular enums
559 *
560 * Some values don't conform to the "well-known type at context
561 * pointer + offset" pattern, so we have this function to catch all
562 * the corner cases. Typically, it's a computed value or a one-off
563 * pointer to a custom struct or something.
564 *
565 * In this case we can't return a pointer to the value, so we'll have
566 * to use the temporary variable 'v' declared back in the calling
567 * glGet*v() function to store the result.
568 *
569 * \param ctx the current context
570 * \param d the struct value_desc that describes the enum
571 * \param v pointer to the tmp declared in the calling glGet*v() function
572 */
573 static void
574 find_custom_value(struct gl_context *ctx, const struct value_desc *d, union value *v)
575 {
576 struct gl_buffer_object **buffer_obj;
577 struct gl_vertex_attrib_array *array;
578 GLuint unit, *p;
579
580 switch (d->pname) {
581 case GL_MAJOR_VERSION:
582 v->value_int = ctx->Version / 10;
583 break;
584 case GL_MINOR_VERSION:
585 v->value_int = ctx->Version % 10;
586 break;
587
588 case GL_TEXTURE_1D:
589 case GL_TEXTURE_2D:
590 case GL_TEXTURE_3D:
591 case GL_TEXTURE_CUBE_MAP:
592 case GL_TEXTURE_RECTANGLE_NV:
593 case GL_TEXTURE_EXTERNAL_OES:
594 v->value_bool = _mesa_IsEnabled(d->pname);
595 break;
596
597 case GL_LINE_STIPPLE_PATTERN:
598 /* This is the only GLushort, special case it here by promoting
599 * to an int rather than introducing a new type. */
600 v->value_int = ctx->Line.StipplePattern;
601 break;
602
603 case GL_CURRENT_RASTER_TEXTURE_COORDS:
604 unit = ctx->Texture.CurrentUnit;
605 v->value_float_4[0] = ctx->Current.RasterTexCoords[unit][0];
606 v->value_float_4[1] = ctx->Current.RasterTexCoords[unit][1];
607 v->value_float_4[2] = ctx->Current.RasterTexCoords[unit][2];
608 v->value_float_4[3] = ctx->Current.RasterTexCoords[unit][3];
609 break;
610
611 case GL_CURRENT_TEXTURE_COORDS:
612 unit = ctx->Texture.CurrentUnit;
613 v->value_float_4[0] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][0];
614 v->value_float_4[1] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][1];
615 v->value_float_4[2] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][2];
616 v->value_float_4[3] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][3];
617 break;
618
619 case GL_COLOR_WRITEMASK:
620 v->value_int_4[0] = ctx->Color.ColorMask[0][RCOMP] ? 1 : 0;
621 v->value_int_4[1] = ctx->Color.ColorMask[0][GCOMP] ? 1 : 0;
622 v->value_int_4[2] = ctx->Color.ColorMask[0][BCOMP] ? 1 : 0;
623 v->value_int_4[3] = ctx->Color.ColorMask[0][ACOMP] ? 1 : 0;
624 break;
625
626 case GL_EDGE_FLAG:
627 v->value_bool = ctx->Current.Attrib[VERT_ATTRIB_EDGEFLAG][0] == 1.0F;
628 break;
629
630 case GL_READ_BUFFER:
631 v->value_enum = ctx->ReadBuffer->ColorReadBuffer;
632 break;
633
634 case GL_MAP2_GRID_DOMAIN:
635 v->value_float_4[0] = ctx->Eval.MapGrid2u1;
636 v->value_float_4[1] = ctx->Eval.MapGrid2u2;
637 v->value_float_4[2] = ctx->Eval.MapGrid2v1;
638 v->value_float_4[3] = ctx->Eval.MapGrid2v2;
639 break;
640
641 case GL_TEXTURE_STACK_DEPTH:
642 unit = ctx->Texture.CurrentUnit;
643 v->value_int = ctx->TextureMatrixStack[unit].Depth + 1;
644 break;
645 case GL_TEXTURE_MATRIX:
646 unit = ctx->Texture.CurrentUnit;
647 v->value_matrix = ctx->TextureMatrixStack[unit].Top;
648 break;
649
650 case GL_TEXTURE_COORD_ARRAY:
651 case GL_TEXTURE_COORD_ARRAY_SIZE:
652 case GL_TEXTURE_COORD_ARRAY_TYPE:
653 case GL_TEXTURE_COORD_ARRAY_STRIDE:
654 array = &ctx->Array.VAO->VertexAttrib[VERT_ATTRIB_TEX(ctx->Array.ActiveTexture)];
655 v->value_int = *(GLuint *) ((char *) array + d->offset);
656 break;
657
658 case GL_ACTIVE_TEXTURE_ARB:
659 v->value_int = GL_TEXTURE0_ARB + ctx->Texture.CurrentUnit;
660 break;
661 case GL_CLIENT_ACTIVE_TEXTURE_ARB:
662 v->value_int = GL_TEXTURE0_ARB + ctx->Array.ActiveTexture;
663 break;
664
665 case GL_MODELVIEW_STACK_DEPTH:
666 case GL_PROJECTION_STACK_DEPTH:
667 v->value_int = *(GLint *) ((char *) ctx + d->offset) + 1;
668 break;
669
670 case GL_MAX_TEXTURE_SIZE:
671 case GL_MAX_3D_TEXTURE_SIZE:
672 case GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB:
673 p = (GLuint *) ((char *) ctx + d->offset);
674 v->value_int = 1 << (*p - 1);
675 break;
676
677 case GL_SCISSOR_BOX:
678 v->value_int_4[0] = ctx->Scissor.ScissorArray[0].X;
679 v->value_int_4[1] = ctx->Scissor.ScissorArray[0].Y;
680 v->value_int_4[2] = ctx->Scissor.ScissorArray[0].Width;
681 v->value_int_4[3] = ctx->Scissor.ScissorArray[0].Height;
682 break;
683
684 case GL_SCISSOR_TEST:
685 v->value_bool = ctx->Scissor.EnableFlags & 1;
686 break;
687
688 case GL_LIST_INDEX:
689 v->value_int =
690 ctx->ListState.CurrentList ? ctx->ListState.CurrentList->Name : 0;
691 break;
692 case GL_LIST_MODE:
693 if (!ctx->CompileFlag)
694 v->value_enum = 0;
695 else if (ctx->ExecuteFlag)
696 v->value_enum = GL_COMPILE_AND_EXECUTE;
697 else
698 v->value_enum = GL_COMPILE;
699 break;
700
701 case GL_VIEWPORT:
702 v->value_float_4[0] = ctx->ViewportArray[0].X;
703 v->value_float_4[1] = ctx->ViewportArray[0].Y;
704 v->value_float_4[2] = ctx->ViewportArray[0].Width;
705 v->value_float_4[3] = ctx->ViewportArray[0].Height;
706 break;
707
708 case GL_DEPTH_RANGE:
709 v->value_double_2[0] = ctx->ViewportArray[0].Near;
710 v->value_double_2[1] = ctx->ViewportArray[0].Far;
711 break;
712
713 case GL_ACTIVE_STENCIL_FACE_EXT:
714 v->value_enum = ctx->Stencil.ActiveFace ? GL_BACK : GL_FRONT;
715 break;
716
717 case GL_STENCIL_FAIL:
718 v->value_enum = ctx->Stencil.FailFunc[ctx->Stencil.ActiveFace];
719 break;
720 case GL_STENCIL_FUNC:
721 v->value_enum = ctx->Stencil.Function[ctx->Stencil.ActiveFace];
722 break;
723 case GL_STENCIL_PASS_DEPTH_FAIL:
724 v->value_enum = ctx->Stencil.ZFailFunc[ctx->Stencil.ActiveFace];
725 break;
726 case GL_STENCIL_PASS_DEPTH_PASS:
727 v->value_enum = ctx->Stencil.ZPassFunc[ctx->Stencil.ActiveFace];
728 break;
729 case GL_STENCIL_REF:
730 v->value_int = _mesa_get_stencil_ref(ctx, ctx->Stencil.ActiveFace);
731 break;
732 case GL_STENCIL_BACK_REF:
733 v->value_int = _mesa_get_stencil_ref(ctx, 1);
734 break;
735 case GL_STENCIL_VALUE_MASK:
736 v->value_int = ctx->Stencil.ValueMask[ctx->Stencil.ActiveFace];
737 break;
738 case GL_STENCIL_WRITEMASK:
739 v->value_int = ctx->Stencil.WriteMask[ctx->Stencil.ActiveFace];
740 break;
741
742 case GL_NUM_EXTENSIONS:
743 v->value_int = _mesa_get_extension_count(ctx);
744 break;
745
746 case GL_IMPLEMENTATION_COLOR_READ_TYPE_OES:
747 v->value_int = _mesa_get_color_read_type(ctx);
748 break;
749 case GL_IMPLEMENTATION_COLOR_READ_FORMAT_OES:
750 v->value_int = _mesa_get_color_read_format(ctx);
751 break;
752
753 case GL_CURRENT_MATRIX_STACK_DEPTH_ARB:
754 v->value_int = ctx->CurrentStack->Depth + 1;
755 break;
756 case GL_CURRENT_MATRIX_ARB:
757 case GL_TRANSPOSE_CURRENT_MATRIX_ARB:
758 v->value_matrix = ctx->CurrentStack->Top;
759 break;
760
761 case GL_NUM_COMPRESSED_TEXTURE_FORMATS_ARB:
762 v->value_int = _mesa_get_compressed_formats(ctx, NULL);
763 break;
764 case GL_COMPRESSED_TEXTURE_FORMATS_ARB:
765 v->value_int_n.n =
766 _mesa_get_compressed_formats(ctx, v->value_int_n.ints);
767 assert(v->value_int_n.n <= (int) ARRAY_SIZE(v->value_int_n.ints));
768 break;
769
770 case GL_MAX_VARYING_FLOATS_ARB:
771 v->value_int = ctx->Const.MaxVarying * 4;
772 break;
773
774 /* Various object names */
775
776 case GL_TEXTURE_BINDING_1D:
777 case GL_TEXTURE_BINDING_2D:
778 case GL_TEXTURE_BINDING_3D:
779 case GL_TEXTURE_BINDING_1D_ARRAY_EXT:
780 case GL_TEXTURE_BINDING_2D_ARRAY_EXT:
781 case GL_TEXTURE_BINDING_CUBE_MAP_ARB:
782 case GL_TEXTURE_BINDING_RECTANGLE_NV:
783 case GL_TEXTURE_BINDING_EXTERNAL_OES:
784 case GL_TEXTURE_BINDING_CUBE_MAP_ARRAY:
785 case GL_TEXTURE_BINDING_2D_MULTISAMPLE:
786 case GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY:
787 unit = ctx->Texture.CurrentUnit;
788 v->value_int =
789 ctx->Texture.Unit[unit].CurrentTex[d->offset]->Name;
790 break;
791
792 /* GL_EXT_packed_float */
793 case GL_RGBA_SIGNED_COMPONENTS_EXT:
794 {
795 /* Note: we only check the 0th color attachment. */
796 const struct gl_renderbuffer *rb =
797 ctx->DrawBuffer->_ColorDrawBuffers[0];
798 if (rb && _mesa_is_format_signed(rb->Format)) {
799 /* Issue 17 of GL_EXT_packed_float: If a component (such as
800 * alpha) has zero bits, the component should not be considered
801 * signed and so the bit for the respective component should be
802 * zeroed.
803 */
804 GLint r_bits =
805 _mesa_get_format_bits(rb->Format, GL_RED_BITS);
806 GLint g_bits =
807 _mesa_get_format_bits(rb->Format, GL_GREEN_BITS);
808 GLint b_bits =
809 _mesa_get_format_bits(rb->Format, GL_BLUE_BITS);
810 GLint a_bits =
811 _mesa_get_format_bits(rb->Format, GL_ALPHA_BITS);
812 GLint l_bits =
813 _mesa_get_format_bits(rb->Format, GL_TEXTURE_LUMINANCE_SIZE);
814 GLint i_bits =
815 _mesa_get_format_bits(rb->Format, GL_TEXTURE_INTENSITY_SIZE);
816
817 v->value_int_4[0] = r_bits + l_bits + i_bits > 0;
818 v->value_int_4[1] = g_bits + l_bits + i_bits > 0;
819 v->value_int_4[2] = b_bits + l_bits + i_bits > 0;
820 v->value_int_4[3] = a_bits + i_bits > 0;
821 }
822 else {
823 v->value_int_4[0] =
824 v->value_int_4[1] =
825 v->value_int_4[2] =
826 v->value_int_4[3] = 0;
827 }
828 }
829 break;
830
831 /* GL_ARB_vertex_buffer_object */
832 case GL_VERTEX_ARRAY_BUFFER_BINDING_ARB:
833 case GL_NORMAL_ARRAY_BUFFER_BINDING_ARB:
834 case GL_COLOR_ARRAY_BUFFER_BINDING_ARB:
835 case GL_INDEX_ARRAY_BUFFER_BINDING_ARB:
836 case GL_EDGE_FLAG_ARRAY_BUFFER_BINDING_ARB:
837 case GL_SECONDARY_COLOR_ARRAY_BUFFER_BINDING_ARB:
838 case GL_FOG_COORDINATE_ARRAY_BUFFER_BINDING_ARB:
839 buffer_obj = (struct gl_buffer_object **)
840 ((char *) ctx->Array.VAO + d->offset);
841 v->value_int = (*buffer_obj)->Name;
842 break;
843 case GL_ARRAY_BUFFER_BINDING_ARB:
844 v->value_int = ctx->Array.ArrayBufferObj->Name;
845 break;
846 case GL_TEXTURE_COORD_ARRAY_BUFFER_BINDING_ARB:
847 v->value_int =
848 ctx->Array.VAO->VertexBinding[VERT_ATTRIB_TEX(ctx->Array.ActiveTexture)].BufferObj->Name;
849 break;
850 case GL_ELEMENT_ARRAY_BUFFER_BINDING_ARB:
851 v->value_int = ctx->Array.VAO->IndexBufferObj->Name;
852 break;
853
854 /* ARB_vertex_array_bgra */
855 case GL_COLOR_ARRAY_SIZE:
856 array = &ctx->Array.VAO->VertexAttrib[VERT_ATTRIB_COLOR0];
857 v->value_int = array->Format == GL_BGRA ? GL_BGRA : array->Size;
858 break;
859 case GL_SECONDARY_COLOR_ARRAY_SIZE:
860 array = &ctx->Array.VAO->VertexAttrib[VERT_ATTRIB_COLOR1];
861 v->value_int = array->Format == GL_BGRA ? GL_BGRA : array->Size;
862 break;
863
864 /* ARB_copy_buffer */
865 case GL_COPY_READ_BUFFER:
866 v->value_int = ctx->CopyReadBuffer->Name;
867 break;
868 case GL_COPY_WRITE_BUFFER:
869 v->value_int = ctx->CopyWriteBuffer->Name;
870 break;
871
872 case GL_PIXEL_PACK_BUFFER_BINDING_EXT:
873 v->value_int = ctx->Pack.BufferObj->Name;
874 break;
875 case GL_PIXEL_UNPACK_BUFFER_BINDING_EXT:
876 v->value_int = ctx->Unpack.BufferObj->Name;
877 break;
878 case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING:
879 v->value_int = ctx->TransformFeedback.CurrentBuffer->Name;
880 break;
881 case GL_TRANSFORM_FEEDBACK_BUFFER_PAUSED:
882 v->value_int = ctx->TransformFeedback.CurrentObject->Paused;
883 break;
884 case GL_TRANSFORM_FEEDBACK_BUFFER_ACTIVE:
885 v->value_int = ctx->TransformFeedback.CurrentObject->Active;
886 break;
887 case GL_TRANSFORM_FEEDBACK_BINDING:
888 v->value_int = ctx->TransformFeedback.CurrentObject->Name;
889 break;
890 case GL_CURRENT_PROGRAM:
891 /* The Changelog of the ARB_separate_shader_objects spec says:
892 *
893 * 24 25 Jul 2011 pbrown Remove the language erroneously deleting
894 * CURRENT_PROGRAM. In the EXT extension, this
895 * token was aliased to ACTIVE_PROGRAM_EXT, and
896 * was used to indicate the last program set by
897 * either ActiveProgramEXT or UseProgram. In
898 * the ARB extension, the SSO active programs
899 * are now program pipeline object state and
900 * CURRENT_PROGRAM should still be used to query
901 * the last program set by UseProgram (bug 7822).
902 */
903 v->value_int =
904 ctx->Shader.ActiveProgram ? ctx->Shader.ActiveProgram->Name : 0;
905 break;
906 case GL_READ_FRAMEBUFFER_BINDING_EXT:
907 v->value_int = ctx->ReadBuffer->Name;
908 break;
909 case GL_RENDERBUFFER_BINDING_EXT:
910 v->value_int =
911 ctx->CurrentRenderbuffer ? ctx->CurrentRenderbuffer->Name : 0;
912 break;
913 case GL_POINT_SIZE_ARRAY_BUFFER_BINDING_OES:
914 v->value_int = ctx->Array.VAO->VertexBinding[VERT_ATTRIB_POINT_SIZE].BufferObj->Name;
915 break;
916
917 case GL_FOG_COLOR:
918 if (_mesa_get_clamp_fragment_color(ctx, ctx->DrawBuffer))
919 COPY_4FV(v->value_float_4, ctx->Fog.Color);
920 else
921 COPY_4FV(v->value_float_4, ctx->Fog.ColorUnclamped);
922 break;
923 case GL_COLOR_CLEAR_VALUE:
924 if (_mesa_get_clamp_fragment_color(ctx, ctx->DrawBuffer)) {
925 v->value_float_4[0] = CLAMP(ctx->Color.ClearColor.f[0], 0.0F, 1.0F);
926 v->value_float_4[1] = CLAMP(ctx->Color.ClearColor.f[1], 0.0F, 1.0F);
927 v->value_float_4[2] = CLAMP(ctx->Color.ClearColor.f[2], 0.0F, 1.0F);
928 v->value_float_4[3] = CLAMP(ctx->Color.ClearColor.f[3], 0.0F, 1.0F);
929 } else
930 COPY_4FV(v->value_float_4, ctx->Color.ClearColor.f);
931 break;
932 case GL_BLEND_COLOR_EXT:
933 if (_mesa_get_clamp_fragment_color(ctx, ctx->DrawBuffer))
934 COPY_4FV(v->value_float_4, ctx->Color.BlendColor);
935 else
936 COPY_4FV(v->value_float_4, ctx->Color.BlendColorUnclamped);
937 break;
938 case GL_ALPHA_TEST_REF:
939 if (_mesa_get_clamp_fragment_color(ctx, ctx->DrawBuffer))
940 v->value_float = ctx->Color.AlphaRef;
941 else
942 v->value_float = ctx->Color.AlphaRefUnclamped;
943 break;
944 case GL_MAX_VERTEX_UNIFORM_VECTORS:
945 v->value_int = ctx->Const.Program[MESA_SHADER_VERTEX].MaxUniformComponents / 4;
946 break;
947
948 case GL_MAX_FRAGMENT_UNIFORM_VECTORS:
949 v->value_int = ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxUniformComponents / 4;
950 break;
951
952 /* GL_ARB_texture_buffer_object */
953 case GL_TEXTURE_BUFFER_ARB:
954 v->value_int = ctx->Texture.BufferObject->Name;
955 break;
956 case GL_TEXTURE_BINDING_BUFFER_ARB:
957 unit = ctx->Texture.CurrentUnit;
958 v->value_int =
959 ctx->Texture.Unit[unit].CurrentTex[TEXTURE_BUFFER_INDEX]->Name;
960 break;
961 case GL_TEXTURE_BUFFER_DATA_STORE_BINDING_ARB:
962 {
963 struct gl_buffer_object *buf =
964 ctx->Texture.Unit[ctx->Texture.CurrentUnit]
965 .CurrentTex[TEXTURE_BUFFER_INDEX]->BufferObject;
966 v->value_int = buf ? buf->Name : 0;
967 }
968 break;
969 case GL_TEXTURE_BUFFER_FORMAT_ARB:
970 v->value_int = ctx->Texture.Unit[ctx->Texture.CurrentUnit]
971 .CurrentTex[TEXTURE_BUFFER_INDEX]->BufferObjectFormat;
972 break;
973
974 /* GL_ARB_sampler_objects */
975 case GL_SAMPLER_BINDING:
976 {
977 struct gl_sampler_object *samp =
978 ctx->Texture.Unit[ctx->Texture.CurrentUnit].Sampler;
979 v->value_int = samp ? samp->Name : 0;
980 }
981 break;
982 /* GL_ARB_uniform_buffer_object */
983 case GL_UNIFORM_BUFFER_BINDING:
984 v->value_int = ctx->UniformBuffer->Name;
985 break;
986 /* GL_ARB_shader_storage_buffer_object */
987 case GL_SHADER_STORAGE_BUFFER_BINDING:
988 v->value_int = ctx->ShaderStorageBuffer->Name;
989 break;
990 /* GL_ARB_query_buffer_object */
991 case GL_QUERY_BUFFER_BINDING:
992 v->value_int = ctx->QueryBuffer->Name;
993 break;
994 /* GL_ARB_timer_query */
995 case GL_TIMESTAMP:
996 if (ctx->Driver.GetTimestamp) {
997 v->value_int64 = ctx->Driver.GetTimestamp(ctx);
998 }
999 else {
1000 _mesa_problem(ctx, "driver doesn't implement GetTimestamp");
1001 }
1002 break;
1003 /* GL_KHR_DEBUG */
1004 case GL_DEBUG_OUTPUT:
1005 case GL_DEBUG_OUTPUT_SYNCHRONOUS:
1006 case GL_DEBUG_LOGGED_MESSAGES:
1007 case GL_DEBUG_NEXT_LOGGED_MESSAGE_LENGTH:
1008 case GL_DEBUG_GROUP_STACK_DEPTH:
1009 v->value_int = _mesa_get_debug_state_int(ctx, d->pname);
1010 break;
1011 /* GL_ARB_shader_atomic_counters */
1012 case GL_ATOMIC_COUNTER_BUFFER_BINDING:
1013 if (ctx->AtomicBuffer) {
1014 v->value_int = ctx->AtomicBuffer->Name;
1015 } else {
1016 v->value_int = 0;
1017 }
1018 break;
1019 /* GL_ARB_draw_indirect */
1020 case GL_DRAW_INDIRECT_BUFFER_BINDING:
1021 v->value_int = ctx->DrawIndirectBuffer->Name;
1022 break;
1023 /* GL_ARB_indirect_parameters */
1024 case GL_PARAMETER_BUFFER_BINDING_ARB:
1025 v->value_int = ctx->ParameterBuffer->Name;
1026 break;
1027 /* GL_ARB_separate_shader_objects */
1028 case GL_PROGRAM_PIPELINE_BINDING:
1029 if (ctx->Pipeline.Current) {
1030 v->value_int = ctx->Pipeline.Current->Name;
1031 } else {
1032 v->value_int = 0;
1033 }
1034 break;
1035 /* GL_ARB_compute_shader */
1036 case GL_DISPATCH_INDIRECT_BUFFER_BINDING:
1037 v->value_int = ctx->DispatchIndirectBuffer->Name;
1038 break;
1039 /* GL_ARB_multisample */
1040 case GL_SAMPLES:
1041 v->value_int = _mesa_geometric_samples(ctx->DrawBuffer);
1042 break;
1043 case GL_SAMPLE_BUFFERS:
1044 v->value_int = _mesa_geometric_samples(ctx->DrawBuffer) > 0;
1045 break;
1046 /* GL_ATI_meminfo & GL_NVX_gpu_memory_info */
1047 case GL_VBO_FREE_MEMORY_ATI:
1048 case GL_TEXTURE_FREE_MEMORY_ATI:
1049 case GL_RENDERBUFFER_FREE_MEMORY_ATI:
1050 case GL_GPU_MEMORY_INFO_DEDICATED_VIDMEM_NVX:
1051 case GL_GPU_MEMORY_INFO_TOTAL_AVAILABLE_MEMORY_NVX:
1052 case GL_GPU_MEMORY_INFO_CURRENT_AVAILABLE_VIDMEM_NVX:
1053 case GL_GPU_MEMORY_INFO_EVICTION_COUNT_NVX:
1054 case GL_GPU_MEMORY_INFO_EVICTED_MEMORY_NVX:
1055 {
1056 struct gl_memory_info info;
1057
1058 ctx->Driver.QueryMemoryInfo(ctx, &info);
1059
1060 if (d->pname == GL_GPU_MEMORY_INFO_DEDICATED_VIDMEM_NVX)
1061 v->value_int = info.total_device_memory;
1062 else if (d->pname == GL_GPU_MEMORY_INFO_TOTAL_AVAILABLE_MEMORY_NVX)
1063 v->value_int = info.total_device_memory +
1064 info.total_staging_memory;
1065 else if (d->pname == GL_GPU_MEMORY_INFO_CURRENT_AVAILABLE_VIDMEM_NVX)
1066 v->value_int = info.avail_device_memory;
1067 else if (d->pname == GL_GPU_MEMORY_INFO_EVICTION_COUNT_NVX)
1068 v->value_int = info.nr_device_memory_evictions;
1069 else if (d->pname == GL_GPU_MEMORY_INFO_EVICTED_MEMORY_NVX)
1070 v->value_int = info.device_memory_evicted;
1071 else {
1072 /* ATI free memory enums.
1073 *
1074 * Since the GPU memory is (usually) page-table based, every two
1075 * consecutive elements are equal. From the GL_ATI_meminfo
1076 * specification:
1077 *
1078 * "param[0] - total memory free in the pool
1079 * param[1] - largest available free block in the pool
1080 * param[2] - total auxiliary memory free
1081 * param[3] - largest auxiliary free block"
1082 *
1083 * All three (VBO, TEXTURE, RENDERBUFFER) queries return
1084 * the same numbers here.
1085 */
1086 v->value_int_4[0] = info.avail_device_memory;
1087 v->value_int_4[1] = info.avail_device_memory;
1088 v->value_int_4[2] = info.avail_staging_memory;
1089 v->value_int_4[3] = info.avail_staging_memory;
1090 }
1091 }
1092 break;
1093 }
1094 }
1095
1096 /**
1097 * Check extra constraints on a struct value_desc descriptor
1098 *
1099 * If a struct value_desc has a non-NULL extra pointer, it means that
1100 * there are a number of extra constraints to check or actions to
1101 * perform. The extras is just an integer array where each integer
1102 * encode different constraints or actions.
1103 *
1104 * \param ctx current context
1105 * \param func name of calling glGet*v() function for error reporting
1106 * \param d the struct value_desc that has the extra constraints
1107 *
1108 * \return GL_FALSE if all of the constraints were not satisfied,
1109 * otherwise GL_TRUE.
1110 */
1111 static GLboolean
1112 check_extra(struct gl_context *ctx, const char *func, const struct value_desc *d)
1113 {
1114 const GLuint version = ctx->Version;
1115 GLboolean api_check = GL_FALSE;
1116 GLboolean api_found = GL_FALSE;
1117 const int *e;
1118
1119 for (e = d->extra; *e != EXTRA_END; e++) {
1120 switch (*e) {
1121 case EXTRA_VERSION_30:
1122 api_check = GL_TRUE;
1123 if (version >= 30)
1124 api_found = GL_TRUE;
1125 break;
1126 case EXTRA_VERSION_31:
1127 api_check = GL_TRUE;
1128 if (version >= 31)
1129 api_found = GL_TRUE;
1130 break;
1131 case EXTRA_VERSION_32:
1132 api_check = GL_TRUE;
1133 if (version >= 32)
1134 api_found = GL_TRUE;
1135 break;
1136 case EXTRA_NEW_FRAG_CLAMP:
1137 if (ctx->NewState & (_NEW_BUFFERS | _NEW_FRAG_CLAMP))
1138 _mesa_update_state(ctx);
1139 break;
1140 case EXTRA_API_ES2:
1141 api_check = GL_TRUE;
1142 if (ctx->API == API_OPENGLES2)
1143 api_found = GL_TRUE;
1144 break;
1145 case EXTRA_API_ES3:
1146 api_check = GL_TRUE;
1147 if (_mesa_is_gles3(ctx))
1148 api_found = GL_TRUE;
1149 break;
1150 case EXTRA_API_ES31:
1151 api_check = GL_TRUE;
1152 if (_mesa_is_gles31(ctx))
1153 api_found = GL_TRUE;
1154 break;
1155 case EXTRA_API_GL:
1156 api_check = GL_TRUE;
1157 if (_mesa_is_desktop_gl(ctx))
1158 api_found = GL_TRUE;
1159 break;
1160 case EXTRA_API_GL_CORE:
1161 api_check = GL_TRUE;
1162 if (ctx->API == API_OPENGL_CORE)
1163 api_found = GL_TRUE;
1164 break;
1165 case EXTRA_NEW_BUFFERS:
1166 if (ctx->NewState & _NEW_BUFFERS)
1167 _mesa_update_state(ctx);
1168 break;
1169 case EXTRA_FLUSH_CURRENT:
1170 FLUSH_CURRENT(ctx, 0);
1171 break;
1172 case EXTRA_VALID_DRAW_BUFFER:
1173 if (d->pname - GL_DRAW_BUFFER0_ARB >= ctx->Const.MaxDrawBuffers) {
1174 _mesa_error(ctx, GL_INVALID_OPERATION, "%s(draw buffer %u)",
1175 func, d->pname - GL_DRAW_BUFFER0_ARB);
1176 return GL_FALSE;
1177 }
1178 break;
1179 case EXTRA_VALID_TEXTURE_UNIT:
1180 if (ctx->Texture.CurrentUnit >= ctx->Const.MaxTextureCoordUnits) {
1181 _mesa_error(ctx, GL_INVALID_OPERATION, "%s(texture %u)",
1182 func, ctx->Texture.CurrentUnit);
1183 return GL_FALSE;
1184 }
1185 break;
1186 case EXTRA_VALID_CLIP_DISTANCE:
1187 if (d->pname - GL_CLIP_DISTANCE0 >= ctx->Const.MaxClipPlanes) {
1188 _mesa_error(ctx, GL_INVALID_ENUM, "%s(clip distance %u)",
1189 func, d->pname - GL_CLIP_DISTANCE0);
1190 return GL_FALSE;
1191 }
1192 break;
1193 case EXTRA_GLSL_130:
1194 api_check = GL_TRUE;
1195 if (ctx->Const.GLSLVersion >= 130)
1196 api_found = GL_TRUE;
1197 break;
1198 case EXTRA_EXT_UBO_GS:
1199 api_check = GL_TRUE;
1200 if (ctx->Extensions.ARB_uniform_buffer_object &&
1201 _mesa_has_geometry_shaders(ctx))
1202 api_found = GL_TRUE;
1203 break;
1204 case EXTRA_EXT_ATOMICS_GS:
1205 api_check = GL_TRUE;
1206 if (ctx->Extensions.ARB_shader_atomic_counters &&
1207 _mesa_has_geometry_shaders(ctx))
1208 api_found = GL_TRUE;
1209 break;
1210 case EXTRA_EXT_SHADER_IMAGE_GS:
1211 api_check = GL_TRUE;
1212 if (ctx->Extensions.ARB_shader_image_load_store &&
1213 _mesa_has_geometry_shaders(ctx))
1214 api_found = GL_TRUE;
1215 break;
1216 case EXTRA_EXT_ATOMICS_TESS:
1217 api_check = GL_TRUE;
1218 api_found = ctx->Extensions.ARB_shader_atomic_counters &&
1219 _mesa_has_tessellation(ctx);
1220 break;
1221 case EXTRA_EXT_SHADER_IMAGE_TESS:
1222 api_check = GL_TRUE;
1223 api_found = ctx->Extensions.ARB_shader_image_load_store &&
1224 _mesa_has_tessellation(ctx);
1225 break;
1226 case EXTRA_EXT_SSBO_GS:
1227 api_check = GL_TRUE;
1228 if (ctx->Extensions.ARB_shader_storage_buffer_object &&
1229 _mesa_has_geometry_shaders(ctx))
1230 api_found = GL_TRUE;
1231 break;
1232 case EXTRA_EXT_FB_NO_ATTACH_GS:
1233 api_check = GL_TRUE;
1234 if (ctx->Extensions.ARB_framebuffer_no_attachments &&
1235 (_mesa_is_desktop_gl(ctx) ||
1236 _mesa_has_OES_geometry_shader(ctx)))
1237 api_found = GL_TRUE;
1238 break;
1239 case EXTRA_EXT_ES_GS:
1240 api_check = GL_TRUE;
1241 if (_mesa_has_OES_geometry_shader(ctx))
1242 api_found = GL_TRUE;
1243 break;
1244 case EXTRA_END:
1245 break;
1246 default: /* *e is a offset into the extension struct */
1247 api_check = GL_TRUE;
1248 if (*(GLboolean *) ((char *) &ctx->Extensions + *e))
1249 api_found = GL_TRUE;
1250 break;
1251 }
1252 }
1253
1254 if (api_check && !api_found) {
1255 _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func,
1256 _mesa_enum_to_string(d->pname));
1257 return GL_FALSE;
1258 }
1259
1260 return GL_TRUE;
1261 }
1262
1263 static const struct value_desc error_value =
1264 { 0, 0, TYPE_INVALID, NO_OFFSET, NO_EXTRA };
1265
1266 /**
1267 * Find the struct value_desc corresponding to the enum 'pname'.
1268 *
1269 * We hash the enum value to get an index into the 'table' array,
1270 * which holds the index in the 'values' array of struct value_desc.
1271 * Once we've found the entry, we do the extra checks, if any, then
1272 * look up the value and return a pointer to it.
1273 *
1274 * If the value has to be computed (for example, it's the result of a
1275 * function call or we need to add 1 to it), we use the tmp 'v' to
1276 * store the result.
1277 *
1278 * \param func name of glGet*v() func for error reporting
1279 * \param pname the enum value we're looking up
1280 * \param p is were we return the pointer to the value
1281 * \param v a tmp union value variable in the calling glGet*v() function
1282 *
1283 * \return the struct value_desc corresponding to the enum or a struct
1284 * value_desc of TYPE_INVALID if not found. This lets the calling
1285 * glGet*v() function jump right into a switch statement and
1286 * handle errors there instead of having to check for NULL.
1287 */
1288 static const struct value_desc *
1289 find_value(const char *func, GLenum pname, void **p, union value *v)
1290 {
1291 GET_CURRENT_CONTEXT(ctx);
1292 struct gl_texture_unit *unit;
1293 int mask, hash;
1294 const struct value_desc *d;
1295 int api;
1296
1297 api = ctx->API;
1298 /* We index into the table_set[] list of per-API hash tables using the API's
1299 * value in the gl_api enum. Since GLES 3 doesn't have an API_OPENGL* enum
1300 * value since it's compatible with GLES2 its entry in table_set[] is at the
1301 * end.
1302 */
1303 STATIC_ASSERT(ARRAY_SIZE(table_set) == API_OPENGL_LAST + 3);
1304 if (_mesa_is_gles3(ctx)) {
1305 api = API_OPENGL_LAST + 1;
1306 }
1307 if (_mesa_is_gles31(ctx)) {
1308 api = API_OPENGL_LAST + 2;
1309 }
1310 mask = ARRAY_SIZE(table(api)) - 1;
1311 hash = (pname * prime_factor);
1312 while (1) {
1313 int idx = table(api)[hash & mask];
1314
1315 /* If the enum isn't valid, the hash walk ends with index 0,
1316 * pointing to the first entry of values[] which doesn't hold
1317 * any valid enum. */
1318 if (unlikely(idx == 0)) {
1319 _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func,
1320 _mesa_enum_to_string(pname));
1321 return &error_value;
1322 }
1323
1324 d = &values[idx];
1325 if (likely(d->pname == pname))
1326 break;
1327
1328 hash += prime_step;
1329 }
1330
1331 if (unlikely(d->extra && !check_extra(ctx, func, d)))
1332 return &error_value;
1333
1334 switch (d->location) {
1335 case LOC_BUFFER:
1336 *p = ((char *) ctx->DrawBuffer + d->offset);
1337 return d;
1338 case LOC_CONTEXT:
1339 *p = ((char *) ctx + d->offset);
1340 return d;
1341 case LOC_ARRAY:
1342 *p = ((char *) ctx->Array.VAO + d->offset);
1343 return d;
1344 case LOC_TEXUNIT:
1345 unit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
1346 *p = ((char *) unit + d->offset);
1347 return d;
1348 case LOC_CUSTOM:
1349 find_custom_value(ctx, d, v);
1350 *p = v;
1351 return d;
1352 default:
1353 assert(0);
1354 break;
1355 }
1356
1357 /* silence warning */
1358 return &error_value;
1359 }
1360
1361 static const int transpose[] = {
1362 0, 4, 8, 12,
1363 1, 5, 9, 13,
1364 2, 6, 10, 14,
1365 3, 7, 11, 15
1366 };
1367
1368 void GLAPIENTRY
1369 _mesa_GetBooleanv(GLenum pname, GLboolean *params)
1370 {
1371 const struct value_desc *d;
1372 union value v;
1373 GLmatrix *m;
1374 int shift, i;
1375 void *p;
1376
1377 d = find_value("glGetBooleanv", pname, &p, &v);
1378 switch (d->type) {
1379 case TYPE_INVALID:
1380 break;
1381 case TYPE_CONST:
1382 params[0] = INT_TO_BOOLEAN(d->offset);
1383 break;
1384
1385 case TYPE_FLOAT_4:
1386 case TYPE_FLOATN_4:
1387 params[3] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[3]);
1388 case TYPE_FLOAT_3:
1389 case TYPE_FLOATN_3:
1390 params[2] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[2]);
1391 case TYPE_FLOAT_2:
1392 case TYPE_FLOATN_2:
1393 params[1] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[1]);
1394 case TYPE_FLOAT:
1395 case TYPE_FLOATN:
1396 params[0] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[0]);
1397 break;
1398
1399 case TYPE_DOUBLEN_2:
1400 params[1] = FLOAT_TO_BOOLEAN(((GLdouble *) p)[1]);
1401 case TYPE_DOUBLEN:
1402 params[0] = FLOAT_TO_BOOLEAN(((GLdouble *) p)[0]);
1403 break;
1404
1405 case TYPE_INT_4:
1406 params[3] = INT_TO_BOOLEAN(((GLint *) p)[3]);
1407 case TYPE_INT_3:
1408 params[2] = INT_TO_BOOLEAN(((GLint *) p)[2]);
1409 case TYPE_INT_2:
1410 case TYPE_ENUM_2:
1411 params[1] = INT_TO_BOOLEAN(((GLint *) p)[1]);
1412 case TYPE_INT:
1413 case TYPE_ENUM:
1414 params[0] = INT_TO_BOOLEAN(((GLint *) p)[0]);
1415 break;
1416
1417 case TYPE_INT_N:
1418 for (i = 0; i < v.value_int_n.n; i++)
1419 params[i] = INT_TO_BOOLEAN(v.value_int_n.ints[i]);
1420 break;
1421
1422 case TYPE_INT64:
1423 params[0] = INT64_TO_BOOLEAN(((GLint64 *) p)[0]);
1424 break;
1425
1426 case TYPE_BOOLEAN:
1427 params[0] = ((GLboolean*) p)[0];
1428 break;
1429
1430 case TYPE_MATRIX:
1431 m = *(GLmatrix **) p;
1432 for (i = 0; i < 16; i++)
1433 params[i] = FLOAT_TO_BOOLEAN(m->m[i]);
1434 break;
1435
1436 case TYPE_MATRIX_T:
1437 m = *(GLmatrix **) p;
1438 for (i = 0; i < 16; i++)
1439 params[i] = FLOAT_TO_BOOLEAN(m->m[transpose[i]]);
1440 break;
1441
1442 case TYPE_BIT_0:
1443 case TYPE_BIT_1:
1444 case TYPE_BIT_2:
1445 case TYPE_BIT_3:
1446 case TYPE_BIT_4:
1447 case TYPE_BIT_5:
1448 case TYPE_BIT_6:
1449 case TYPE_BIT_7:
1450 shift = d->type - TYPE_BIT_0;
1451 params[0] = (*(GLbitfield *) p >> shift) & 1;
1452 break;
1453 }
1454 }
1455
1456 void GLAPIENTRY
1457 _mesa_GetFloatv(GLenum pname, GLfloat *params)
1458 {
1459 const struct value_desc *d;
1460 union value v;
1461 GLmatrix *m;
1462 int shift, i;
1463 void *p;
1464
1465 d = find_value("glGetFloatv", pname, &p, &v);
1466 switch (d->type) {
1467 case TYPE_INVALID:
1468 break;
1469 case TYPE_CONST:
1470 params[0] = (GLfloat) d->offset;
1471 break;
1472
1473 case TYPE_FLOAT_4:
1474 case TYPE_FLOATN_4:
1475 params[3] = ((GLfloat *) p)[3];
1476 case TYPE_FLOAT_3:
1477 case TYPE_FLOATN_3:
1478 params[2] = ((GLfloat *) p)[2];
1479 case TYPE_FLOAT_2:
1480 case TYPE_FLOATN_2:
1481 params[1] = ((GLfloat *) p)[1];
1482 case TYPE_FLOAT:
1483 case TYPE_FLOATN:
1484 params[0] = ((GLfloat *) p)[0];
1485 break;
1486
1487 case TYPE_DOUBLEN_2:
1488 params[1] = (GLfloat) (((GLdouble *) p)[1]);
1489 case TYPE_DOUBLEN:
1490 params[0] = (GLfloat) (((GLdouble *) p)[0]);
1491 break;
1492
1493 case TYPE_INT_4:
1494 params[3] = (GLfloat) (((GLint *) p)[3]);
1495 case TYPE_INT_3:
1496 params[2] = (GLfloat) (((GLint *) p)[2]);
1497 case TYPE_INT_2:
1498 case TYPE_ENUM_2:
1499 params[1] = (GLfloat) (((GLint *) p)[1]);
1500 case TYPE_INT:
1501 case TYPE_ENUM:
1502 params[0] = (GLfloat) (((GLint *) p)[0]);
1503 break;
1504
1505 case TYPE_INT_N:
1506 for (i = 0; i < v.value_int_n.n; i++)
1507 params[i] = INT_TO_FLOAT(v.value_int_n.ints[i]);
1508 break;
1509
1510 case TYPE_INT64:
1511 params[0] = (GLfloat) (((GLint64 *) p)[0]);
1512 break;
1513
1514 case TYPE_BOOLEAN:
1515 params[0] = BOOLEAN_TO_FLOAT(*(GLboolean*) p);
1516 break;
1517
1518 case TYPE_MATRIX:
1519 m = *(GLmatrix **) p;
1520 for (i = 0; i < 16; i++)
1521 params[i] = m->m[i];
1522 break;
1523
1524 case TYPE_MATRIX_T:
1525 m = *(GLmatrix **) p;
1526 for (i = 0; i < 16; i++)
1527 params[i] = m->m[transpose[i]];
1528 break;
1529
1530 case TYPE_BIT_0:
1531 case TYPE_BIT_1:
1532 case TYPE_BIT_2:
1533 case TYPE_BIT_3:
1534 case TYPE_BIT_4:
1535 case TYPE_BIT_5:
1536 case TYPE_BIT_6:
1537 case TYPE_BIT_7:
1538 shift = d->type - TYPE_BIT_0;
1539 params[0] = BOOLEAN_TO_FLOAT((*(GLbitfield *) p >> shift) & 1);
1540 break;
1541 }
1542 }
1543
1544 void GLAPIENTRY
1545 _mesa_GetIntegerv(GLenum pname, GLint *params)
1546 {
1547 const struct value_desc *d;
1548 union value v;
1549 GLmatrix *m;
1550 int shift, i;
1551 void *p;
1552
1553 d = find_value("glGetIntegerv", pname, &p, &v);
1554 switch (d->type) {
1555 case TYPE_INVALID:
1556 break;
1557 case TYPE_CONST:
1558 params[0] = d->offset;
1559 break;
1560
1561 case TYPE_FLOAT_4:
1562 params[3] = IROUND(((GLfloat *) p)[3]);
1563 case TYPE_FLOAT_3:
1564 params[2] = IROUND(((GLfloat *) p)[2]);
1565 case TYPE_FLOAT_2:
1566 params[1] = IROUND(((GLfloat *) p)[1]);
1567 case TYPE_FLOAT:
1568 params[0] = IROUND(((GLfloat *) p)[0]);
1569 break;
1570
1571 case TYPE_FLOATN_4:
1572 params[3] = FLOAT_TO_INT(((GLfloat *) p)[3]);
1573 case TYPE_FLOATN_3:
1574 params[2] = FLOAT_TO_INT(((GLfloat *) p)[2]);
1575 case TYPE_FLOATN_2:
1576 params[1] = FLOAT_TO_INT(((GLfloat *) p)[1]);
1577 case TYPE_FLOATN:
1578 params[0] = FLOAT_TO_INT(((GLfloat *) p)[0]);
1579 break;
1580
1581 case TYPE_DOUBLEN_2:
1582 params[1] = FLOAT_TO_INT(((GLdouble *) p)[1]);
1583 case TYPE_DOUBLEN:
1584 params[0] = FLOAT_TO_INT(((GLdouble *) p)[0]);
1585 break;
1586
1587 case TYPE_INT_4:
1588 params[3] = ((GLint *) p)[3];
1589 case TYPE_INT_3:
1590 params[2] = ((GLint *) p)[2];
1591 case TYPE_INT_2:
1592 case TYPE_ENUM_2:
1593 params[1] = ((GLint *) p)[1];
1594 case TYPE_INT:
1595 case TYPE_ENUM:
1596 params[0] = ((GLint *) p)[0];
1597 break;
1598
1599 case TYPE_INT_N:
1600 for (i = 0; i < v.value_int_n.n; i++)
1601 params[i] = v.value_int_n.ints[i];
1602 break;
1603
1604 case TYPE_INT64:
1605 params[0] = INT64_TO_INT(((GLint64 *) p)[0]);
1606 break;
1607
1608 case TYPE_BOOLEAN:
1609 params[0] = BOOLEAN_TO_INT(*(GLboolean*) p);
1610 break;
1611
1612 case TYPE_MATRIX:
1613 m = *(GLmatrix **) p;
1614 for (i = 0; i < 16; i++)
1615 params[i] = FLOAT_TO_INT(m->m[i]);
1616 break;
1617
1618 case TYPE_MATRIX_T:
1619 m = *(GLmatrix **) p;
1620 for (i = 0; i < 16; i++)
1621 params[i] = FLOAT_TO_INT(m->m[transpose[i]]);
1622 break;
1623
1624 case TYPE_BIT_0:
1625 case TYPE_BIT_1:
1626 case TYPE_BIT_2:
1627 case TYPE_BIT_3:
1628 case TYPE_BIT_4:
1629 case TYPE_BIT_5:
1630 case TYPE_BIT_6:
1631 case TYPE_BIT_7:
1632 shift = d->type - TYPE_BIT_0;
1633 params[0] = (*(GLbitfield *) p >> shift) & 1;
1634 break;
1635 }
1636 }
1637
1638 void GLAPIENTRY
1639 _mesa_GetInteger64v(GLenum pname, GLint64 *params)
1640 {
1641 const struct value_desc *d;
1642 union value v;
1643 GLmatrix *m;
1644 int shift, i;
1645 void *p;
1646
1647 d = find_value("glGetInteger64v", pname, &p, &v);
1648 switch (d->type) {
1649 case TYPE_INVALID:
1650 break;
1651 case TYPE_CONST:
1652 params[0] = d->offset;
1653 break;
1654
1655 case TYPE_FLOAT_4:
1656 params[3] = IROUND64(((GLfloat *) p)[3]);
1657 case TYPE_FLOAT_3:
1658 params[2] = IROUND64(((GLfloat *) p)[2]);
1659 case TYPE_FLOAT_2:
1660 params[1] = IROUND64(((GLfloat *) p)[1]);
1661 case TYPE_FLOAT:
1662 params[0] = IROUND64(((GLfloat *) p)[0]);
1663 break;
1664
1665 case TYPE_FLOATN_4:
1666 params[3] = FLOAT_TO_INT(((GLfloat *) p)[3]);
1667 case TYPE_FLOATN_3:
1668 params[2] = FLOAT_TO_INT(((GLfloat *) p)[2]);
1669 case TYPE_FLOATN_2:
1670 params[1] = FLOAT_TO_INT(((GLfloat *) p)[1]);
1671 case TYPE_FLOATN:
1672 params[0] = FLOAT_TO_INT(((GLfloat *) p)[0]);
1673 break;
1674
1675 case TYPE_DOUBLEN_2:
1676 params[1] = FLOAT_TO_INT(((GLdouble *) p)[1]);
1677 case TYPE_DOUBLEN:
1678 params[0] = FLOAT_TO_INT(((GLdouble *) p)[0]);
1679 break;
1680
1681 case TYPE_INT_4:
1682 params[3] = ((GLint *) p)[3];
1683 case TYPE_INT_3:
1684 params[2] = ((GLint *) p)[2];
1685 case TYPE_INT_2:
1686 case TYPE_ENUM_2:
1687 params[1] = ((GLint *) p)[1];
1688 case TYPE_INT:
1689 case TYPE_ENUM:
1690 params[0] = ((GLint *) p)[0];
1691 break;
1692
1693 case TYPE_INT_N:
1694 for (i = 0; i < v.value_int_n.n; i++)
1695 params[i] = INT_TO_BOOLEAN(v.value_int_n.ints[i]);
1696 break;
1697
1698 case TYPE_INT64:
1699 params[0] = ((GLint64 *) p)[0];
1700 break;
1701
1702 case TYPE_BOOLEAN:
1703 params[0] = ((GLboolean*) p)[0];
1704 break;
1705
1706 case TYPE_MATRIX:
1707 m = *(GLmatrix **) p;
1708 for (i = 0; i < 16; i++)
1709 params[i] = FLOAT_TO_INT64(m->m[i]);
1710 break;
1711
1712 case TYPE_MATRIX_T:
1713 m = *(GLmatrix **) p;
1714 for (i = 0; i < 16; i++)
1715 params[i] = FLOAT_TO_INT64(m->m[transpose[i]]);
1716 break;
1717
1718 case TYPE_BIT_0:
1719 case TYPE_BIT_1:
1720 case TYPE_BIT_2:
1721 case TYPE_BIT_3:
1722 case TYPE_BIT_4:
1723 case TYPE_BIT_5:
1724 case TYPE_BIT_6:
1725 case TYPE_BIT_7:
1726 shift = d->type - TYPE_BIT_0;
1727 params[0] = (*(GLbitfield *) p >> shift) & 1;
1728 break;
1729 }
1730 }
1731
1732 void GLAPIENTRY
1733 _mesa_GetDoublev(GLenum pname, GLdouble *params)
1734 {
1735 const struct value_desc *d;
1736 union value v;
1737 GLmatrix *m;
1738 int shift, i;
1739 void *p;
1740
1741 d = find_value("glGetDoublev", pname, &p, &v);
1742 switch (d->type) {
1743 case TYPE_INVALID:
1744 break;
1745 case TYPE_CONST:
1746 params[0] = d->offset;
1747 break;
1748
1749 case TYPE_FLOAT_4:
1750 case TYPE_FLOATN_4:
1751 params[3] = ((GLfloat *) p)[3];
1752 case TYPE_FLOAT_3:
1753 case TYPE_FLOATN_3:
1754 params[2] = ((GLfloat *) p)[2];
1755 case TYPE_FLOAT_2:
1756 case TYPE_FLOATN_2:
1757 params[1] = ((GLfloat *) p)[1];
1758 case TYPE_FLOAT:
1759 case TYPE_FLOATN:
1760 params[0] = ((GLfloat *) p)[0];
1761 break;
1762
1763 case TYPE_DOUBLEN_2:
1764 params[1] = ((GLdouble *) p)[1];
1765 case TYPE_DOUBLEN:
1766 params[0] = ((GLdouble *) p)[0];
1767 break;
1768
1769 case TYPE_INT_4:
1770 params[3] = ((GLint *) p)[3];
1771 case TYPE_INT_3:
1772 params[2] = ((GLint *) p)[2];
1773 case TYPE_INT_2:
1774 case TYPE_ENUM_2:
1775 params[1] = ((GLint *) p)[1];
1776 case TYPE_INT:
1777 case TYPE_ENUM:
1778 params[0] = ((GLint *) p)[0];
1779 break;
1780
1781 case TYPE_INT_N:
1782 for (i = 0; i < v.value_int_n.n; i++)
1783 params[i] = v.value_int_n.ints[i];
1784 break;
1785
1786 case TYPE_INT64:
1787 params[0] = (GLdouble) (((GLint64 *) p)[0]);
1788 break;
1789
1790 case TYPE_BOOLEAN:
1791 params[0] = *(GLboolean*) p;
1792 break;
1793
1794 case TYPE_MATRIX:
1795 m = *(GLmatrix **) p;
1796 for (i = 0; i < 16; i++)
1797 params[i] = m->m[i];
1798 break;
1799
1800 case TYPE_MATRIX_T:
1801 m = *(GLmatrix **) p;
1802 for (i = 0; i < 16; i++)
1803 params[i] = m->m[transpose[i]];
1804 break;
1805
1806 case TYPE_BIT_0:
1807 case TYPE_BIT_1:
1808 case TYPE_BIT_2:
1809 case TYPE_BIT_3:
1810 case TYPE_BIT_4:
1811 case TYPE_BIT_5:
1812 case TYPE_BIT_6:
1813 case TYPE_BIT_7:
1814 shift = d->type - TYPE_BIT_0;
1815 params[0] = (*(GLbitfield *) p >> shift) & 1;
1816 break;
1817 }
1818 }
1819
1820 /**
1821 * Convert a GL texture binding enum such as GL_TEXTURE_BINDING_2D
1822 * into the corresponding Mesa texture target index.
1823 * \return TEXTURE_x_INDEX or -1 if binding is invalid
1824 */
1825 static int
1826 tex_binding_to_index(const struct gl_context *ctx, GLenum binding)
1827 {
1828 switch (binding) {
1829 case GL_TEXTURE_BINDING_1D:
1830 return _mesa_is_desktop_gl(ctx) ? TEXTURE_1D_INDEX : -1;
1831 case GL_TEXTURE_BINDING_2D:
1832 return TEXTURE_2D_INDEX;
1833 case GL_TEXTURE_BINDING_3D:
1834 return ctx->API != API_OPENGLES ? TEXTURE_3D_INDEX : -1;
1835 case GL_TEXTURE_BINDING_CUBE_MAP:
1836 return ctx->Extensions.ARB_texture_cube_map
1837 ? TEXTURE_CUBE_INDEX : -1;
1838 case GL_TEXTURE_BINDING_RECTANGLE:
1839 return _mesa_is_desktop_gl(ctx) && ctx->Extensions.NV_texture_rectangle
1840 ? TEXTURE_RECT_INDEX : -1;
1841 case GL_TEXTURE_BINDING_1D_ARRAY:
1842 return _mesa_is_desktop_gl(ctx) && ctx->Extensions.EXT_texture_array
1843 ? TEXTURE_1D_ARRAY_INDEX : -1;
1844 case GL_TEXTURE_BINDING_2D_ARRAY:
1845 return (_mesa_is_desktop_gl(ctx) && ctx->Extensions.EXT_texture_array)
1846 || _mesa_is_gles3(ctx)
1847 ? TEXTURE_2D_ARRAY_INDEX : -1;
1848 case GL_TEXTURE_BINDING_BUFFER:
1849 return (_mesa_has_ARB_texture_buffer_object(ctx) ||
1850 _mesa_has_OES_texture_buffer(ctx)) ?
1851 TEXTURE_BUFFER_INDEX : -1;
1852 case GL_TEXTURE_BINDING_CUBE_MAP_ARRAY:
1853 return _mesa_is_desktop_gl(ctx) && ctx->Extensions.ARB_texture_cube_map_array
1854 ? TEXTURE_CUBE_ARRAY_INDEX : -1;
1855 case GL_TEXTURE_BINDING_2D_MULTISAMPLE:
1856 return _mesa_is_desktop_gl(ctx) && ctx->Extensions.ARB_texture_multisample
1857 ? TEXTURE_2D_MULTISAMPLE_INDEX : -1;
1858 case GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY:
1859 return _mesa_is_desktop_gl(ctx) && ctx->Extensions.ARB_texture_multisample
1860 ? TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX : -1;
1861 default:
1862 return -1;
1863 }
1864 }
1865
1866 static enum value_type
1867 find_value_indexed(const char *func, GLenum pname, GLuint index, union value *v)
1868 {
1869 GET_CURRENT_CONTEXT(ctx);
1870
1871 switch (pname) {
1872
1873 case GL_BLEND:
1874 if (index >= ctx->Const.MaxDrawBuffers)
1875 goto invalid_value;
1876 if (!ctx->Extensions.EXT_draw_buffers2)
1877 goto invalid_enum;
1878 v->value_int = (ctx->Color.BlendEnabled >> index) & 1;
1879 return TYPE_INT;
1880
1881 case GL_BLEND_SRC:
1882 /* fall-through */
1883 case GL_BLEND_SRC_RGB:
1884 if (index >= ctx->Const.MaxDrawBuffers)
1885 goto invalid_value;
1886 if (!ctx->Extensions.ARB_draw_buffers_blend)
1887 goto invalid_enum;
1888 v->value_int = ctx->Color.Blend[index].SrcRGB;
1889 return TYPE_INT;
1890 case GL_BLEND_SRC_ALPHA:
1891 if (index >= ctx->Const.MaxDrawBuffers)
1892 goto invalid_value;
1893 if (!ctx->Extensions.ARB_draw_buffers_blend)
1894 goto invalid_enum;
1895 v->value_int = ctx->Color.Blend[index].SrcA;
1896 return TYPE_INT;
1897 case GL_BLEND_DST:
1898 /* fall-through */
1899 case GL_BLEND_DST_RGB:
1900 if (index >= ctx->Const.MaxDrawBuffers)
1901 goto invalid_value;
1902 if (!ctx->Extensions.ARB_draw_buffers_blend)
1903 goto invalid_enum;
1904 v->value_int = ctx->Color.Blend[index].DstRGB;
1905 return TYPE_INT;
1906 case GL_BLEND_DST_ALPHA:
1907 if (index >= ctx->Const.MaxDrawBuffers)
1908 goto invalid_value;
1909 if (!ctx->Extensions.ARB_draw_buffers_blend)
1910 goto invalid_enum;
1911 v->value_int = ctx->Color.Blend[index].DstA;
1912 return TYPE_INT;
1913 case GL_BLEND_EQUATION_RGB:
1914 if (index >= ctx->Const.MaxDrawBuffers)
1915 goto invalid_value;
1916 if (!ctx->Extensions.ARB_draw_buffers_blend)
1917 goto invalid_enum;
1918 v->value_int = ctx->Color.Blend[index].EquationRGB;
1919 return TYPE_INT;
1920 case GL_BLEND_EQUATION_ALPHA:
1921 if (index >= ctx->Const.MaxDrawBuffers)
1922 goto invalid_value;
1923 if (!ctx->Extensions.ARB_draw_buffers_blend)
1924 goto invalid_enum;
1925 v->value_int = ctx->Color.Blend[index].EquationA;
1926 return TYPE_INT;
1927
1928 case GL_COLOR_WRITEMASK:
1929 if (index >= ctx->Const.MaxDrawBuffers)
1930 goto invalid_value;
1931 if (!ctx->Extensions.EXT_draw_buffers2)
1932 goto invalid_enum;
1933 v->value_int_4[0] = ctx->Color.ColorMask[index][RCOMP] ? 1 : 0;
1934 v->value_int_4[1] = ctx->Color.ColorMask[index][GCOMP] ? 1 : 0;
1935 v->value_int_4[2] = ctx->Color.ColorMask[index][BCOMP] ? 1 : 0;
1936 v->value_int_4[3] = ctx->Color.ColorMask[index][ACOMP] ? 1 : 0;
1937 return TYPE_INT_4;
1938
1939 case GL_SCISSOR_BOX:
1940 if (index >= ctx->Const.MaxViewports)
1941 goto invalid_value;
1942 v->value_int_4[0] = ctx->Scissor.ScissorArray[index].X;
1943 v->value_int_4[1] = ctx->Scissor.ScissorArray[index].Y;
1944 v->value_int_4[2] = ctx->Scissor.ScissorArray[index].Width;
1945 v->value_int_4[3] = ctx->Scissor.ScissorArray[index].Height;
1946 return TYPE_INT_4;
1947
1948 case GL_WINDOW_RECTANGLE_EXT:
1949 if (!ctx->Extensions.EXT_window_rectangles)
1950 goto invalid_enum;
1951 if (index >= ctx->Const.MaxWindowRectangles)
1952 goto invalid_value;
1953 v->value_int_4[0] = ctx->Scissor.WindowRects[index].X;
1954 v->value_int_4[1] = ctx->Scissor.WindowRects[index].Y;
1955 v->value_int_4[2] = ctx->Scissor.WindowRects[index].Width;
1956 v->value_int_4[3] = ctx->Scissor.WindowRects[index].Height;
1957 return TYPE_INT_4;
1958
1959 case GL_VIEWPORT:
1960 if (index >= ctx->Const.MaxViewports)
1961 goto invalid_value;
1962 v->value_float_4[0] = ctx->ViewportArray[index].X;
1963 v->value_float_4[1] = ctx->ViewportArray[index].Y;
1964 v->value_float_4[2] = ctx->ViewportArray[index].Width;
1965 v->value_float_4[3] = ctx->ViewportArray[index].Height;
1966 return TYPE_FLOAT_4;
1967
1968 case GL_DEPTH_RANGE:
1969 if (index >= ctx->Const.MaxViewports)
1970 goto invalid_value;
1971 v->value_double_2[0] = ctx->ViewportArray[index].Near;
1972 v->value_double_2[1] = ctx->ViewportArray[index].Far;
1973 return TYPE_DOUBLEN_2;
1974
1975 case GL_TRANSFORM_FEEDBACK_BUFFER_START:
1976 if (index >= ctx->Const.MaxTransformFeedbackBuffers)
1977 goto invalid_value;
1978 if (!ctx->Extensions.EXT_transform_feedback)
1979 goto invalid_enum;
1980 v->value_int64 = ctx->TransformFeedback.CurrentObject->Offset[index];
1981 return TYPE_INT64;
1982
1983 case GL_TRANSFORM_FEEDBACK_BUFFER_SIZE:
1984 if (index >= ctx->Const.MaxTransformFeedbackBuffers)
1985 goto invalid_value;
1986 if (!ctx->Extensions.EXT_transform_feedback)
1987 goto invalid_enum;
1988 v->value_int64
1989 = ctx->TransformFeedback.CurrentObject->RequestedSize[index];
1990 return TYPE_INT64;
1991
1992 case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING:
1993 if (index >= ctx->Const.MaxTransformFeedbackBuffers)
1994 goto invalid_value;
1995 if (!ctx->Extensions.EXT_transform_feedback)
1996 goto invalid_enum;
1997 v->value_int = ctx->TransformFeedback.CurrentObject->BufferNames[index];
1998 return TYPE_INT;
1999
2000 case GL_UNIFORM_BUFFER_BINDING:
2001 if (index >= ctx->Const.MaxUniformBufferBindings)
2002 goto invalid_value;
2003 if (!ctx->Extensions.ARB_uniform_buffer_object)
2004 goto invalid_enum;
2005 v->value_int = ctx->UniformBufferBindings[index].BufferObject->Name;
2006 return TYPE_INT;
2007
2008 case GL_UNIFORM_BUFFER_START:
2009 if (index >= ctx->Const.MaxUniformBufferBindings)
2010 goto invalid_value;
2011 if (!ctx->Extensions.ARB_uniform_buffer_object)
2012 goto invalid_enum;
2013 v->value_int = ctx->UniformBufferBindings[index].Offset < 0 ? 0 :
2014 ctx->UniformBufferBindings[index].Offset;
2015 return TYPE_INT;
2016
2017 case GL_UNIFORM_BUFFER_SIZE:
2018 if (index >= ctx->Const.MaxUniformBufferBindings)
2019 goto invalid_value;
2020 if (!ctx->Extensions.ARB_uniform_buffer_object)
2021 goto invalid_enum;
2022 v->value_int = ctx->UniformBufferBindings[index].Size < 0 ? 0 :
2023 ctx->UniformBufferBindings[index].Size;
2024 return TYPE_INT;
2025
2026 /* ARB_shader_storage_buffer_object */
2027 case GL_SHADER_STORAGE_BUFFER_BINDING:
2028 if (!ctx->Extensions.ARB_shader_storage_buffer_object)
2029 goto invalid_enum;
2030 if (index >= ctx->Const.MaxShaderStorageBufferBindings)
2031 goto invalid_value;
2032 v->value_int = ctx->ShaderStorageBufferBindings[index].BufferObject->Name;
2033 return TYPE_INT;
2034
2035 case GL_SHADER_STORAGE_BUFFER_START:
2036 if (!ctx->Extensions.ARB_shader_storage_buffer_object)
2037 goto invalid_enum;
2038 if (index >= ctx->Const.MaxShaderStorageBufferBindings)
2039 goto invalid_value;
2040 v->value_int = ctx->ShaderStorageBufferBindings[index].Offset < 0 ? 0 :
2041 ctx->ShaderStorageBufferBindings[index].Offset;
2042 return TYPE_INT;
2043
2044 case GL_SHADER_STORAGE_BUFFER_SIZE:
2045 if (!ctx->Extensions.ARB_shader_storage_buffer_object)
2046 goto invalid_enum;
2047 if (index >= ctx->Const.MaxShaderStorageBufferBindings)
2048 goto invalid_value;
2049 v->value_int = ctx->ShaderStorageBufferBindings[index].Size < 0 ? 0 :
2050 ctx->ShaderStorageBufferBindings[index].Size;
2051 return TYPE_INT;
2052
2053 /* ARB_texture_multisample / GL3.2 */
2054 case GL_SAMPLE_MASK_VALUE:
2055 if (index != 0)
2056 goto invalid_value;
2057 if (!ctx->Extensions.ARB_texture_multisample)
2058 goto invalid_enum;
2059 v->value_int = ctx->Multisample.SampleMaskValue;
2060 return TYPE_INT;
2061
2062 case GL_ATOMIC_COUNTER_BUFFER_BINDING:
2063 if (!ctx->Extensions.ARB_shader_atomic_counters)
2064 goto invalid_enum;
2065 if (index >= ctx->Const.MaxAtomicBufferBindings)
2066 goto invalid_value;
2067 v->value_int = ctx->AtomicBufferBindings[index].BufferObject->Name;
2068 return TYPE_INT;
2069
2070 case GL_ATOMIC_COUNTER_BUFFER_START:
2071 if (!ctx->Extensions.ARB_shader_atomic_counters)
2072 goto invalid_enum;
2073 if (index >= ctx->Const.MaxAtomicBufferBindings)
2074 goto invalid_value;
2075 v->value_int64 = ctx->AtomicBufferBindings[index].Offset;
2076 return TYPE_INT64;
2077
2078 case GL_ATOMIC_COUNTER_BUFFER_SIZE:
2079 if (!ctx->Extensions.ARB_shader_atomic_counters)
2080 goto invalid_enum;
2081 if (index >= ctx->Const.MaxAtomicBufferBindings)
2082 goto invalid_value;
2083 v->value_int64 = ctx->AtomicBufferBindings[index].Size;
2084 return TYPE_INT64;
2085
2086 case GL_VERTEX_BINDING_DIVISOR:
2087 if ((!_mesa_is_desktop_gl(ctx) || !ctx->Extensions.ARB_instanced_arrays) &&
2088 !_mesa_is_gles31(ctx))
2089 goto invalid_enum;
2090 if (index >= ctx->Const.Program[MESA_SHADER_VERTEX].MaxAttribs)
2091 goto invalid_value;
2092 v->value_int = ctx->Array.VAO->VertexBinding[VERT_ATTRIB_GENERIC(index)].InstanceDivisor;
2093 return TYPE_INT;
2094
2095 case GL_VERTEX_BINDING_OFFSET:
2096 if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles31(ctx))
2097 goto invalid_enum;
2098 if (index >= ctx->Const.Program[MESA_SHADER_VERTEX].MaxAttribs)
2099 goto invalid_value;
2100 v->value_int = ctx->Array.VAO->VertexBinding[VERT_ATTRIB_GENERIC(index)].Offset;
2101 return TYPE_INT;
2102
2103 case GL_VERTEX_BINDING_STRIDE:
2104 if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles31(ctx))
2105 goto invalid_enum;
2106 if (index >= ctx->Const.Program[MESA_SHADER_VERTEX].MaxAttribs)
2107 goto invalid_value;
2108 v->value_int = ctx->Array.VAO->VertexBinding[VERT_ATTRIB_GENERIC(index)].Stride;
2109 return TYPE_INT;
2110
2111 case GL_VERTEX_BINDING_BUFFER:
2112 if (ctx->API == API_OPENGLES2 && ctx->Version < 31)
2113 goto invalid_enum;
2114 if (index >= ctx->Const.Program[MESA_SHADER_VERTEX].MaxAttribs)
2115 goto invalid_value;
2116 v->value_int = ctx->Array.VAO->VertexBinding[VERT_ATTRIB_GENERIC(index)].BufferObj->Name;
2117 return TYPE_INT;
2118
2119 /* ARB_shader_image_load_store */
2120 case GL_IMAGE_BINDING_NAME: {
2121 struct gl_texture_object *t;
2122
2123 if (!ctx->Extensions.ARB_shader_image_load_store)
2124 goto invalid_enum;
2125 if (index >= ctx->Const.MaxImageUnits)
2126 goto invalid_value;
2127
2128 t = ctx->ImageUnits[index].TexObj;
2129 v->value_int = (t ? t->Name : 0);
2130 return TYPE_INT;
2131 }
2132
2133 case GL_IMAGE_BINDING_LEVEL:
2134 if (!ctx->Extensions.ARB_shader_image_load_store)
2135 goto invalid_enum;
2136 if (index >= ctx->Const.MaxImageUnits)
2137 goto invalid_value;
2138
2139 v->value_int = ctx->ImageUnits[index].Level;
2140 return TYPE_INT;
2141
2142 case GL_IMAGE_BINDING_LAYERED:
2143 if (!ctx->Extensions.ARB_shader_image_load_store)
2144 goto invalid_enum;
2145 if (index >= ctx->Const.MaxImageUnits)
2146 goto invalid_value;
2147
2148 v->value_int = ctx->ImageUnits[index].Layered;
2149 return TYPE_INT;
2150
2151 case GL_IMAGE_BINDING_LAYER:
2152 if (!ctx->Extensions.ARB_shader_image_load_store)
2153 goto invalid_enum;
2154 if (index >= ctx->Const.MaxImageUnits)
2155 goto invalid_value;
2156
2157 v->value_int = ctx->ImageUnits[index].Layer;
2158 return TYPE_INT;
2159
2160 case GL_IMAGE_BINDING_ACCESS:
2161 if (!ctx->Extensions.ARB_shader_image_load_store)
2162 goto invalid_enum;
2163 if (index >= ctx->Const.MaxImageUnits)
2164 goto invalid_value;
2165
2166 v->value_int = ctx->ImageUnits[index].Access;
2167 return TYPE_INT;
2168
2169 case GL_IMAGE_BINDING_FORMAT:
2170 if (!ctx->Extensions.ARB_shader_image_load_store)
2171 goto invalid_enum;
2172 if (index >= ctx->Const.MaxImageUnits)
2173 goto invalid_value;
2174
2175 v->value_int = ctx->ImageUnits[index].Format;
2176 return TYPE_INT;
2177
2178 /* ARB_direct_state_access */
2179 case GL_TEXTURE_BINDING_1D:
2180 case GL_TEXTURE_BINDING_1D_ARRAY:
2181 case GL_TEXTURE_BINDING_2D:
2182 case GL_TEXTURE_BINDING_2D_ARRAY:
2183 case GL_TEXTURE_BINDING_2D_MULTISAMPLE:
2184 case GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY:
2185 case GL_TEXTURE_BINDING_3D:
2186 case GL_TEXTURE_BINDING_BUFFER:
2187 case GL_TEXTURE_BINDING_CUBE_MAP:
2188 case GL_TEXTURE_BINDING_CUBE_MAP_ARRAY:
2189 case GL_TEXTURE_BINDING_RECTANGLE: {
2190 int target;
2191
2192 if (ctx->API != API_OPENGL_CORE)
2193 goto invalid_enum;
2194 target = tex_binding_to_index(ctx, pname);
2195 if (target < 0)
2196 goto invalid_enum;
2197 if (index >= _mesa_max_tex_unit(ctx))
2198 goto invalid_value;
2199
2200 v->value_int = ctx->Texture.Unit[index].CurrentTex[target]->Name;
2201 return TYPE_INT;
2202 }
2203
2204 case GL_SAMPLER_BINDING: {
2205 struct gl_sampler_object *samp;
2206
2207 if (ctx->API != API_OPENGL_CORE)
2208 goto invalid_enum;
2209 if (index >= _mesa_max_tex_unit(ctx))
2210 goto invalid_value;
2211
2212 samp = ctx->Texture.Unit[index].Sampler;
2213 v->value_int = samp ? samp->Name : 0;
2214 return TYPE_INT;
2215 }
2216
2217 case GL_MAX_COMPUTE_WORK_GROUP_COUNT:
2218 if (!_mesa_has_compute_shaders(ctx))
2219 goto invalid_enum;
2220 if (index >= 3)
2221 goto invalid_value;
2222 v->value_int = ctx->Const.MaxComputeWorkGroupCount[index];
2223 return TYPE_INT;
2224
2225 case GL_MAX_COMPUTE_WORK_GROUP_SIZE:
2226 if (!_mesa_has_compute_shaders(ctx))
2227 goto invalid_enum;
2228 if (index >= 3)
2229 goto invalid_value;
2230 v->value_int = ctx->Const.MaxComputeWorkGroupSize[index];
2231 return TYPE_INT;
2232 }
2233
2234 invalid_enum:
2235 _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func,
2236 _mesa_enum_to_string(pname));
2237 return TYPE_INVALID;
2238 invalid_value:
2239 _mesa_error(ctx, GL_INVALID_VALUE, "%s(pname=%s)", func,
2240 _mesa_enum_to_string(pname));
2241 return TYPE_INVALID;
2242 }
2243
2244 void GLAPIENTRY
2245 _mesa_GetBooleani_v( GLenum pname, GLuint index, GLboolean *params )
2246 {
2247 union value v;
2248 enum value_type type =
2249 find_value_indexed("glGetBooleani_v", pname, index, &v);
2250
2251 switch (type) {
2252 case TYPE_INT:
2253 params[0] = INT_TO_BOOLEAN(v.value_int);
2254 break;
2255 case TYPE_INT_4:
2256 params[0] = INT_TO_BOOLEAN(v.value_int_4[0]);
2257 params[1] = INT_TO_BOOLEAN(v.value_int_4[1]);
2258 params[2] = INT_TO_BOOLEAN(v.value_int_4[2]);
2259 params[3] = INT_TO_BOOLEAN(v.value_int_4[3]);
2260 break;
2261 case TYPE_INT64:
2262 params[0] = INT64_TO_BOOLEAN(v.value_int64);
2263 break;
2264 default:
2265 ; /* nothing - GL error was recorded */
2266 }
2267 }
2268
2269 void GLAPIENTRY
2270 _mesa_GetIntegeri_v( GLenum pname, GLuint index, GLint *params )
2271 {
2272 union value v;
2273 enum value_type type =
2274 find_value_indexed("glGetIntegeri_v", pname, index, &v);
2275
2276 switch (type) {
2277 case TYPE_FLOAT_4:
2278 case TYPE_FLOATN_4:
2279 params[3] = IROUND(v.value_float_4[3]);
2280 case TYPE_FLOAT_3:
2281 case TYPE_FLOATN_3:
2282 params[2] = IROUND(v.value_float_4[2]);
2283 case TYPE_FLOAT_2:
2284 case TYPE_FLOATN_2:
2285 params[1] = IROUND(v.value_float_4[1]);
2286 case TYPE_FLOAT:
2287 case TYPE_FLOATN:
2288 params[0] = IROUND(v.value_float_4[0]);
2289 break;
2290
2291 case TYPE_DOUBLEN_2:
2292 params[1] = IROUND(v.value_double_2[1]);
2293 case TYPE_DOUBLEN:
2294 params[0] = IROUND(v.value_double_2[0]);
2295 break;
2296
2297 case TYPE_INT:
2298 params[0] = v.value_int;
2299 break;
2300 case TYPE_INT_4:
2301 params[0] = v.value_int_4[0];
2302 params[1] = v.value_int_4[1];
2303 params[2] = v.value_int_4[2];
2304 params[3] = v.value_int_4[3];
2305 break;
2306 case TYPE_INT64:
2307 params[0] = INT64_TO_INT(v.value_int64);
2308 break;
2309 default:
2310 ; /* nothing - GL error was recorded */
2311 }
2312 }
2313
2314 void GLAPIENTRY
2315 _mesa_GetInteger64i_v( GLenum pname, GLuint index, GLint64 *params )
2316 {
2317 union value v;
2318 enum value_type type =
2319 find_value_indexed("glGetInteger64i_v", pname, index, &v);
2320
2321 switch (type) {
2322 case TYPE_INT:
2323 params[0] = v.value_int;
2324 break;
2325 case TYPE_INT_4:
2326 params[0] = v.value_int_4[0];
2327 params[1] = v.value_int_4[1];
2328 params[2] = v.value_int_4[2];
2329 params[3] = v.value_int_4[3];
2330 break;
2331 case TYPE_INT64:
2332 params[0] = v.value_int64;
2333 break;
2334 default:
2335 ; /* nothing - GL error was recorded */
2336 }
2337 }
2338
2339 void GLAPIENTRY
2340 _mesa_GetFloati_v(GLenum pname, GLuint index, GLfloat *params)
2341 {
2342 int i;
2343 GLmatrix *m;
2344 union value v;
2345 enum value_type type =
2346 find_value_indexed("glGetFloati_v", pname, index, &v);
2347
2348 switch (type) {
2349 case TYPE_FLOAT_4:
2350 case TYPE_FLOATN_4:
2351 params[3] = v.value_float_4[3];
2352 case TYPE_FLOAT_3:
2353 case TYPE_FLOATN_3:
2354 params[2] = v.value_float_4[2];
2355 case TYPE_FLOAT_2:
2356 case TYPE_FLOATN_2:
2357 params[1] = v.value_float_4[1];
2358 case TYPE_FLOAT:
2359 case TYPE_FLOATN:
2360 params[0] = v.value_float_4[0];
2361 break;
2362
2363 case TYPE_DOUBLEN_2:
2364 params[1] = (GLfloat) v.value_double_2[1];
2365 case TYPE_DOUBLEN:
2366 params[0] = (GLfloat) v.value_double_2[0];
2367 break;
2368
2369 case TYPE_INT_4:
2370 params[3] = (GLfloat) v.value_int_4[3];
2371 case TYPE_INT_3:
2372 params[2] = (GLfloat) v.value_int_4[2];
2373 case TYPE_INT_2:
2374 case TYPE_ENUM_2:
2375 params[1] = (GLfloat) v.value_int_4[1];
2376 case TYPE_INT:
2377 case TYPE_ENUM:
2378 params[0] = (GLfloat) v.value_int_4[0];
2379 break;
2380
2381 case TYPE_INT_N:
2382 for (i = 0; i < v.value_int_n.n; i++)
2383 params[i] = INT_TO_FLOAT(v.value_int_n.ints[i]);
2384 break;
2385
2386 case TYPE_INT64:
2387 params[0] = (GLfloat) v.value_int64;
2388 break;
2389
2390 case TYPE_BOOLEAN:
2391 params[0] = BOOLEAN_TO_FLOAT(v.value_bool);
2392 break;
2393
2394 case TYPE_MATRIX:
2395 m = *(GLmatrix **) &v;
2396 for (i = 0; i < 16; i++)
2397 params[i] = m->m[i];
2398 break;
2399
2400 case TYPE_MATRIX_T:
2401 m = *(GLmatrix **) &v;
2402 for (i = 0; i < 16; i++)
2403 params[i] = m->m[transpose[i]];
2404 break;
2405
2406 default:
2407 ;
2408 }
2409 }
2410
2411 void GLAPIENTRY
2412 _mesa_GetDoublei_v(GLenum pname, GLuint index, GLdouble *params)
2413 {
2414 int i;
2415 GLmatrix *m;
2416 union value v;
2417 enum value_type type =
2418 find_value_indexed("glGetDoublei_v", pname, index, &v);
2419
2420 switch (type) {
2421 case TYPE_FLOAT_4:
2422 case TYPE_FLOATN_4:
2423 params[3] = (GLdouble) v.value_float_4[3];
2424 case TYPE_FLOAT_3:
2425 case TYPE_FLOATN_3:
2426 params[2] = (GLdouble) v.value_float_4[2];
2427 case TYPE_FLOAT_2:
2428 case TYPE_FLOATN_2:
2429 params[1] = (GLdouble) v.value_float_4[1];
2430 case TYPE_FLOAT:
2431 case TYPE_FLOATN:
2432 params[0] = (GLdouble) v.value_float_4[0];
2433 break;
2434
2435 case TYPE_DOUBLEN_2:
2436 params[1] = v.value_double_2[1];
2437 case TYPE_DOUBLEN:
2438 params[0] = v.value_double_2[0];
2439 break;
2440
2441 case TYPE_INT_4:
2442 params[3] = (GLdouble) v.value_int_4[3];
2443 case TYPE_INT_3:
2444 params[2] = (GLdouble) v.value_int_4[2];
2445 case TYPE_INT_2:
2446 case TYPE_ENUM_2:
2447 params[1] = (GLdouble) v.value_int_4[1];
2448 case TYPE_INT:
2449 case TYPE_ENUM:
2450 params[0] = (GLdouble) v.value_int_4[0];
2451 break;
2452
2453 case TYPE_INT_N:
2454 for (i = 0; i < v.value_int_n.n; i++)
2455 params[i] = (GLdouble) INT_TO_FLOAT(v.value_int_n.ints[i]);
2456 break;
2457
2458 case TYPE_INT64:
2459 params[0] = (GLdouble) v.value_int64;
2460 break;
2461
2462 case TYPE_BOOLEAN:
2463 params[0] = (GLdouble) BOOLEAN_TO_FLOAT(v.value_bool);
2464 break;
2465
2466 case TYPE_MATRIX:
2467 m = *(GLmatrix **) &v;
2468 for (i = 0; i < 16; i++)
2469 params[i] = (GLdouble) m->m[i];
2470 break;
2471
2472 case TYPE_MATRIX_T:
2473 m = *(GLmatrix **) &v;
2474 for (i = 0; i < 16; i++)
2475 params[i] = (GLdouble) m->m[transpose[i]];
2476 break;
2477
2478 default:
2479 ;
2480 }
2481 }
2482
2483 void GLAPIENTRY
2484 _mesa_GetFixedv(GLenum pname, GLfixed *params)
2485 {
2486 const struct value_desc *d;
2487 union value v;
2488 GLmatrix *m;
2489 int shift, i;
2490 void *p;
2491
2492 d = find_value("glGetDoublev", pname, &p, &v);
2493 switch (d->type) {
2494 case TYPE_INVALID:
2495 break;
2496 case TYPE_CONST:
2497 params[0] = INT_TO_FIXED(d->offset);
2498 break;
2499
2500 case TYPE_FLOAT_4:
2501 case TYPE_FLOATN_4:
2502 params[3] = FLOAT_TO_FIXED(((GLfloat *) p)[3]);
2503 case TYPE_FLOAT_3:
2504 case TYPE_FLOATN_3:
2505 params[2] = FLOAT_TO_FIXED(((GLfloat *) p)[2]);
2506 case TYPE_FLOAT_2:
2507 case TYPE_FLOATN_2:
2508 params[1] = FLOAT_TO_FIXED(((GLfloat *) p)[1]);
2509 case TYPE_FLOAT:
2510 case TYPE_FLOATN:
2511 params[0] = FLOAT_TO_FIXED(((GLfloat *) p)[0]);
2512 break;
2513
2514 case TYPE_DOUBLEN_2:
2515 params[1] = FLOAT_TO_FIXED(((GLdouble *) p)[1]);
2516 case TYPE_DOUBLEN:
2517 params[0] = FLOAT_TO_FIXED(((GLdouble *) p)[0]);
2518 break;
2519
2520 case TYPE_INT_4:
2521 params[3] = INT_TO_FIXED(((GLint *) p)[3]);
2522 case TYPE_INT_3:
2523 params[2] = INT_TO_FIXED(((GLint *) p)[2]);
2524 case TYPE_INT_2:
2525 case TYPE_ENUM_2:
2526 params[1] = INT_TO_FIXED(((GLint *) p)[1]);
2527 case TYPE_INT:
2528 case TYPE_ENUM:
2529 params[0] = INT_TO_FIXED(((GLint *) p)[0]);
2530 break;
2531
2532 case TYPE_INT_N:
2533 for (i = 0; i < v.value_int_n.n; i++)
2534 params[i] = INT_TO_FIXED(v.value_int_n.ints[i]);
2535 break;
2536
2537 case TYPE_INT64:
2538 params[0] = ((GLint64 *) p)[0];
2539 break;
2540
2541 case TYPE_BOOLEAN:
2542 params[0] = BOOLEAN_TO_FIXED(((GLboolean*) p)[0]);
2543 break;
2544
2545 case TYPE_MATRIX:
2546 m = *(GLmatrix **) p;
2547 for (i = 0; i < 16; i++)
2548 params[i] = FLOAT_TO_FIXED(m->m[i]);
2549 break;
2550
2551 case TYPE_MATRIX_T:
2552 m = *(GLmatrix **) p;
2553 for (i = 0; i < 16; i++)
2554 params[i] = FLOAT_TO_FIXED(m->m[transpose[i]]);
2555 break;
2556
2557 case TYPE_BIT_0:
2558 case TYPE_BIT_1:
2559 case TYPE_BIT_2:
2560 case TYPE_BIT_3:
2561 case TYPE_BIT_4:
2562 case TYPE_BIT_5:
2563 case TYPE_BIT_6:
2564 case TYPE_BIT_7:
2565 shift = d->type - TYPE_BIT_0;
2566 params[0] = BOOLEAN_TO_FIXED((*(GLbitfield *) p >> shift) & 1);
2567 break;
2568 }
2569 }