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mesa: add a GLES3.2 enums section, and expose new MS line width params
[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_FLOAT_8,
115 TYPE_FLOATN,
116 TYPE_FLOATN_2,
117 TYPE_FLOATN_3,
118 TYPE_FLOATN_4,
119 TYPE_DOUBLEN,
120 TYPE_DOUBLEN_2,
121 TYPE_MATRIX,
122 TYPE_MATRIX_T,
123 TYPE_CONST
124 };
125
126 enum value_location {
127 LOC_BUFFER,
128 LOC_CONTEXT,
129 LOC_ARRAY,
130 LOC_TEXUNIT,
131 LOC_CUSTOM
132 };
133
134 enum value_extra {
135 EXTRA_END = 0x8000,
136 EXTRA_VERSION_30,
137 EXTRA_VERSION_31,
138 EXTRA_VERSION_32,
139 EXTRA_VERSION_40,
140 EXTRA_API_GL,
141 EXTRA_API_GL_CORE,
142 EXTRA_API_ES2,
143 EXTRA_API_ES3,
144 EXTRA_API_ES31,
145 EXTRA_API_ES32,
146 EXTRA_NEW_BUFFERS,
147 EXTRA_NEW_FRAG_CLAMP,
148 EXTRA_VALID_DRAW_BUFFER,
149 EXTRA_VALID_TEXTURE_UNIT,
150 EXTRA_VALID_CLIP_DISTANCE,
151 EXTRA_FLUSH_CURRENT,
152 EXTRA_GLSL_130,
153 EXTRA_EXT_UBO_GS,
154 EXTRA_EXT_ATOMICS_GS,
155 EXTRA_EXT_SHADER_IMAGE_GS,
156 EXTRA_EXT_ATOMICS_TESS,
157 EXTRA_EXT_SHADER_IMAGE_TESS,
158 EXTRA_EXT_SSBO_GS,
159 EXTRA_EXT_FB_NO_ATTACH_GS,
160 EXTRA_EXT_ES_GS,
161 };
162
163 #define NO_EXTRA NULL
164 #define NO_OFFSET 0
165
166 struct value_desc {
167 GLenum pname;
168 GLubyte location; /**< enum value_location */
169 GLubyte type; /**< enum value_type */
170 int offset;
171 const int *extra;
172 };
173
174 union value {
175 GLfloat value_float;
176 GLfloat value_float_4[4];
177 GLdouble value_double_2[2];
178 GLmatrix *value_matrix;
179 GLint value_int;
180 GLint value_int_4[4];
181 GLint64 value_int64;
182 GLenum value_enum;
183
184 /* Sigh, see GL_COMPRESSED_TEXTURE_FORMATS_ARB handling */
185 struct {
186 GLint n, ints[100];
187 } value_int_n;
188 GLboolean value_bool;
189 };
190
191 #define BUFFER_FIELD(field, type) \
192 LOC_BUFFER, type, offsetof(struct gl_framebuffer, field)
193 #define CONTEXT_FIELD(field, type) \
194 LOC_CONTEXT, type, offsetof(struct gl_context, field)
195 #define ARRAY_FIELD(field, type) \
196 LOC_ARRAY, type, offsetof(struct gl_vertex_array_object, field)
197 #undef CONST /* already defined through windows.h */
198 #define CONST(value) \
199 LOC_CONTEXT, TYPE_CONST, value
200
201 #define BUFFER_INT(field) BUFFER_FIELD(field, TYPE_INT)
202 #define BUFFER_ENUM(field) BUFFER_FIELD(field, TYPE_ENUM)
203 #define BUFFER_BOOL(field) BUFFER_FIELD(field, TYPE_BOOLEAN)
204
205 #define CONTEXT_INT(field) CONTEXT_FIELD(field, TYPE_INT)
206 #define CONTEXT_INT2(field) CONTEXT_FIELD(field, TYPE_INT_2)
207 #define CONTEXT_INT64(field) CONTEXT_FIELD(field, TYPE_INT64)
208 #define CONTEXT_ENUM(field) CONTEXT_FIELD(field, TYPE_ENUM)
209 #define CONTEXT_ENUM2(field) CONTEXT_FIELD(field, TYPE_ENUM_2)
210 #define CONTEXT_BOOL(field) CONTEXT_FIELD(field, TYPE_BOOLEAN)
211 #define CONTEXT_BIT0(field) CONTEXT_FIELD(field, TYPE_BIT_0)
212 #define CONTEXT_BIT1(field) CONTEXT_FIELD(field, TYPE_BIT_1)
213 #define CONTEXT_BIT2(field) CONTEXT_FIELD(field, TYPE_BIT_2)
214 #define CONTEXT_BIT3(field) CONTEXT_FIELD(field, TYPE_BIT_3)
215 #define CONTEXT_BIT4(field) CONTEXT_FIELD(field, TYPE_BIT_4)
216 #define CONTEXT_BIT5(field) CONTEXT_FIELD(field, TYPE_BIT_5)
217 #define CONTEXT_BIT6(field) CONTEXT_FIELD(field, TYPE_BIT_6)
218 #define CONTEXT_BIT7(field) CONTEXT_FIELD(field, TYPE_BIT_7)
219 #define CONTEXT_FLOAT(field) CONTEXT_FIELD(field, TYPE_FLOAT)
220 #define CONTEXT_FLOAT2(field) CONTEXT_FIELD(field, TYPE_FLOAT_2)
221 #define CONTEXT_FLOAT3(field) CONTEXT_FIELD(field, TYPE_FLOAT_3)
222 #define CONTEXT_FLOAT4(field) CONTEXT_FIELD(field, TYPE_FLOAT_4)
223 #define CONTEXT_FLOAT8(field) CONTEXT_FIELD(field, TYPE_FLOAT_8)
224 #define CONTEXT_MATRIX(field) CONTEXT_FIELD(field, TYPE_MATRIX)
225 #define CONTEXT_MATRIX_T(field) CONTEXT_FIELD(field, TYPE_MATRIX_T)
226
227 #define ARRAY_INT(field) ARRAY_FIELD(field, TYPE_INT)
228 #define ARRAY_ENUM(field) ARRAY_FIELD(field, TYPE_ENUM)
229 #define ARRAY_BOOL(field) ARRAY_FIELD(field, TYPE_BOOLEAN)
230
231 #define EXT(f) \
232 offsetof(struct gl_extensions, f)
233
234 #define EXTRA_EXT(e) \
235 static const int extra_##e[] = { \
236 EXT(e), EXTRA_END \
237 }
238
239 #define EXTRA_EXT2(e1, e2) \
240 static const int extra_##e1##_##e2[] = { \
241 EXT(e1), EXT(e2), EXTRA_END \
242 }
243
244 /* The 'extra' mechanism is a way to specify extra checks (such as
245 * extensions or specific gl versions) or actions (flush current, new
246 * buffers) that we need to do before looking up an enum. We need to
247 * declare them all up front so we can refer to them in the value_desc
248 * structs below.
249 *
250 * Each EXTRA_ will be executed. For EXTRA_* enums of extensions and API
251 * versions, listing multiple ones in an array means an error will be thrown
252 * only if none of them are available. If you need to check for "AND"
253 * behavior, you would need to make a custom EXTRA_ enum.
254 */
255
256 static const int extra_new_buffers[] = {
257 EXTRA_NEW_BUFFERS,
258 EXTRA_END
259 };
260
261 static const int extra_new_frag_clamp[] = {
262 EXTRA_NEW_FRAG_CLAMP,
263 EXTRA_END
264 };
265
266 static const int extra_valid_draw_buffer[] = {
267 EXTRA_VALID_DRAW_BUFFER,
268 EXTRA_END
269 };
270
271 static const int extra_valid_texture_unit[] = {
272 EXTRA_VALID_TEXTURE_UNIT,
273 EXTRA_END
274 };
275
276 static const int extra_valid_clip_distance[] = {
277 EXTRA_VALID_CLIP_DISTANCE,
278 EXTRA_END
279 };
280
281 static const int extra_flush_current_valid_texture_unit[] = {
282 EXTRA_FLUSH_CURRENT,
283 EXTRA_VALID_TEXTURE_UNIT,
284 EXTRA_END
285 };
286
287 static const int extra_flush_current[] = {
288 EXTRA_FLUSH_CURRENT,
289 EXTRA_END
290 };
291
292 static const int extra_EXT_texture_integer_and_new_buffers[] = {
293 EXT(EXT_texture_integer),
294 EXTRA_NEW_BUFFERS,
295 EXTRA_END
296 };
297
298 static const int extra_GLSL_130_es3[] = {
299 EXTRA_GLSL_130,
300 EXTRA_API_ES3,
301 EXTRA_END
302 };
303
304 static const int extra_texture_buffer_object[] = {
305 EXTRA_API_GL_CORE,
306 EXTRA_VERSION_31,
307 EXT(ARB_texture_buffer_object),
308 EXTRA_END
309 };
310
311 static const int extra_ARB_transform_feedback2_api_es3[] = {
312 EXT(ARB_transform_feedback2),
313 EXTRA_API_ES3,
314 EXTRA_END
315 };
316
317 static const int extra_ARB_uniform_buffer_object_and_geometry_shader[] = {
318 EXTRA_EXT_UBO_GS,
319 EXTRA_END
320 };
321
322 static const int extra_ARB_ES2_compatibility_api_es2[] = {
323 EXT(ARB_ES2_compatibility),
324 EXTRA_API_ES2,
325 EXTRA_END
326 };
327
328 static const int extra_ARB_ES3_compatibility_api_es3[] = {
329 EXT(ARB_ES3_compatibility),
330 EXTRA_API_ES3,
331 EXTRA_END
332 };
333
334 static const int extra_EXT_framebuffer_sRGB_and_new_buffers[] = {
335 EXT(EXT_framebuffer_sRGB),
336 EXTRA_NEW_BUFFERS,
337 EXTRA_END
338 };
339
340 static const int extra_EXT_packed_float[] = {
341 EXT(EXT_packed_float),
342 EXTRA_NEW_BUFFERS,
343 EXTRA_END
344 };
345
346 static const int extra_EXT_texture_array_es3[] = {
347 EXT(EXT_texture_array),
348 EXTRA_API_ES3,
349 EXTRA_END
350 };
351
352 static const int extra_ARB_shader_atomic_counters_and_geometry_shader[] = {
353 EXTRA_EXT_ATOMICS_GS,
354 EXTRA_END
355 };
356
357 static const int extra_ARB_shader_image_load_store_and_geometry_shader[] = {
358 EXTRA_EXT_SHADER_IMAGE_GS,
359 EXTRA_END
360 };
361
362 static const int extra_ARB_shader_atomic_counters_and_tessellation[] = {
363 EXTRA_EXT_ATOMICS_TESS,
364 EXTRA_END
365 };
366
367 static const int extra_ARB_shader_image_load_store_and_tessellation[] = {
368 EXTRA_EXT_SHADER_IMAGE_TESS,
369 EXTRA_END
370 };
371
372 /* HACK: remove when ARB_compute_shader is actually supported */
373 static const int extra_ARB_compute_shader_es31[] = {
374 EXT(ARB_compute_shader),
375 EXTRA_API_ES31,
376 EXTRA_END
377 };
378
379 static const int extra_ARB_shader_storage_buffer_object_es31[] = {
380 EXT(ARB_shader_storage_buffer_object),
381 EXTRA_API_ES31,
382 EXTRA_END
383 };
384
385 static const int extra_ARB_shader_storage_buffer_object_and_geometry_shader[] = {
386 EXTRA_EXT_SSBO_GS,
387 EXTRA_END
388 };
389
390 static const int extra_ARB_shader_image_load_store_shader_storage_buffer_object_es31[] = {
391 EXT(ARB_shader_image_load_store),
392 EXT(ARB_shader_storage_buffer_object),
393 EXTRA_API_ES31,
394 EXTRA_END
395 };
396
397 static const int extra_ARB_framebuffer_no_attachments_and_geometry_shader[] = {
398 EXTRA_EXT_FB_NO_ATTACH_GS,
399 EXTRA_END
400 };
401
402 static const int extra_ARB_viewport_array_or_oes_geometry_shader[] = {
403 EXT(ARB_viewport_array),
404 EXTRA_EXT_ES_GS,
405 EXTRA_END
406 };
407
408 static const int extra_ARB_gpu_shader5_or_oes_geometry_shader[] = {
409 EXT(ARB_gpu_shader5),
410 EXTRA_EXT_ES_GS,
411 EXTRA_END
412 };
413
414 static const int extra_ARB_gpu_shader5_or_OES_sample_variables[] = {
415 EXT(ARB_gpu_shader5),
416 EXT(OES_sample_variables),
417 EXTRA_END
418 };
419
420 static const int extra_ES32[] = {
421 EXT(ARB_ES3_2_compatibility),
422 EXTRA_API_ES32,
423 EXTRA_END
424 };
425
426 EXTRA_EXT(ARB_texture_cube_map);
427 EXTRA_EXT(EXT_texture_array);
428 EXTRA_EXT(NV_fog_distance);
429 EXTRA_EXT(EXT_texture_filter_anisotropic);
430 EXTRA_EXT(NV_point_sprite);
431 EXTRA_EXT(NV_texture_rectangle);
432 EXTRA_EXT(EXT_stencil_two_side);
433 EXTRA_EXT(EXT_depth_bounds_test);
434 EXTRA_EXT(ARB_depth_clamp);
435 EXTRA_EXT(ATI_fragment_shader);
436 EXTRA_EXT(EXT_provoking_vertex);
437 EXTRA_EXT(ARB_fragment_shader);
438 EXTRA_EXT(ARB_fragment_program);
439 EXTRA_EXT2(ARB_framebuffer_object, EXT_framebuffer_multisample);
440 EXTRA_EXT(ARB_seamless_cube_map);
441 EXTRA_EXT(ARB_sync);
442 EXTRA_EXT(ARB_vertex_shader);
443 EXTRA_EXT(EXT_transform_feedback);
444 EXTRA_EXT(ARB_transform_feedback3);
445 EXTRA_EXT(EXT_pixel_buffer_object);
446 EXTRA_EXT(ARB_vertex_program);
447 EXTRA_EXT2(NV_point_sprite, ARB_point_sprite);
448 EXTRA_EXT2(ARB_vertex_program, ARB_fragment_program);
449 EXTRA_EXT(ARB_color_buffer_float);
450 EXTRA_EXT(EXT_framebuffer_sRGB);
451 EXTRA_EXT(OES_EGL_image_external);
452 EXTRA_EXT(ARB_blend_func_extended);
453 EXTRA_EXT(ARB_uniform_buffer_object);
454 EXTRA_EXT(ARB_timer_query);
455 EXTRA_EXT2(ARB_texture_cube_map_array, OES_texture_cube_map_array);
456 EXTRA_EXT(ARB_texture_buffer_range);
457 EXTRA_EXT(ARB_texture_multisample);
458 EXTRA_EXT(ARB_texture_gather);
459 EXTRA_EXT(ARB_shader_atomic_counters);
460 EXTRA_EXT(ARB_draw_indirect);
461 EXTRA_EXT(ARB_shader_image_load_store);
462 EXTRA_EXT(ARB_viewport_array);
463 EXTRA_EXT(ARB_query_buffer_object);
464 EXTRA_EXT2(ARB_transform_feedback3, ARB_gpu_shader5);
465 EXTRA_EXT(INTEL_performance_query);
466 EXTRA_EXT(ARB_explicit_uniform_location);
467 EXTRA_EXT(ARB_clip_control);
468 EXTRA_EXT(EXT_polygon_offset_clamp);
469 EXTRA_EXT(ARB_framebuffer_no_attachments);
470 EXTRA_EXT(ARB_tessellation_shader);
471 EXTRA_EXT(ARB_shader_subroutine);
472 EXTRA_EXT(ARB_shader_storage_buffer_object);
473 EXTRA_EXT(ARB_indirect_parameters);
474 EXTRA_EXT(ATI_meminfo);
475 EXTRA_EXT(NVX_gpu_memory_info);
476 EXTRA_EXT(ARB_cull_distance);
477 EXTRA_EXT(EXT_window_rectangles);
478 EXTRA_EXT(KHR_blend_equation_advanced_coherent);
479 EXTRA_EXT(OES_primitive_bounding_box);
480
481 static const int
482 extra_ARB_color_buffer_float_or_glcore[] = {
483 EXT(ARB_color_buffer_float),
484 EXTRA_API_GL_CORE,
485 EXTRA_END
486 };
487
488 static const int
489 extra_NV_primitive_restart[] = {
490 EXT(NV_primitive_restart),
491 EXTRA_END
492 };
493
494 static const int extra_version_30[] = { EXTRA_VERSION_30, EXTRA_END };
495 static const int extra_version_31[] = { EXTRA_VERSION_31, EXTRA_END };
496 static const int extra_version_32[] = { EXTRA_VERSION_32, EXTRA_END };
497
498 static const int extra_gl30_es3[] = {
499 EXTRA_VERSION_30,
500 EXTRA_API_ES3,
501 EXTRA_END,
502 };
503
504 static const int extra_gl32_es3[] = {
505 EXTRA_VERSION_32,
506 EXTRA_API_ES3,
507 EXTRA_END,
508 };
509
510 static const int extra_version_32_OES_geometry_shader[] = {
511 EXTRA_VERSION_32,
512 EXTRA_EXT_ES_GS,
513 EXTRA_END
514 };
515
516 static const int extra_gl40_ARB_sample_shading[] = {
517 EXTRA_VERSION_40,
518 EXT(ARB_sample_shading),
519 EXTRA_END
520 };
521
522 static const int
523 extra_ARB_vertex_program_api_es2[] = {
524 EXT(ARB_vertex_program),
525 EXTRA_API_ES2,
526 EXTRA_END
527 };
528
529 /* The ReadBuffer get token is valid under either full GL or under
530 * GLES2 if the NV_read_buffer extension is available. */
531 static const int
532 extra_NV_read_buffer_api_gl[] = {
533 EXTRA_API_ES2,
534 EXTRA_API_GL,
535 EXTRA_END
536 };
537
538 static const int extra_core_ARB_color_buffer_float_and_new_buffers[] = {
539 EXTRA_API_GL_CORE,
540 EXT(ARB_color_buffer_float),
541 EXTRA_NEW_BUFFERS,
542 EXTRA_END
543 };
544
545 static const int extra_EXT_shader_framebuffer_fetch[] = {
546 EXTRA_API_ES2,
547 EXTRA_API_ES3,
548 EXT(MESA_shader_framebuffer_fetch),
549 EXTRA_END
550 };
551
552 /* This is the big table describing all the enums we accept in
553 * glGet*v(). The table is partitioned into six parts: enums
554 * understood by all GL APIs (OpenGL, GLES and GLES2), enums shared
555 * between OpenGL and GLES, enums exclusive to GLES, etc for the
556 * remaining combinations. To look up the enums valid in a given API
557 * we will use a hash table specific to that API. These tables are in
558 * turn generated at build time and included through get_hash.h.
559 */
560
561 #include "get_hash.h"
562
563 /* All we need now is a way to look up the value struct from the enum.
564 * The code generated by gcc for the old generated big switch
565 * statement is a big, balanced, open coded if/else tree, essentially
566 * an unrolled binary search. It would be natural to sort the new
567 * enum table and use bsearch(), but we will use a read-only hash
568 * table instead. bsearch() has a nice guaranteed worst case
569 * performance, but we're also guaranteed to hit that worst case
570 * (log2(n) iterations) for about half the enums. Instead, using an
571 * open addressing hash table, we can find the enum on the first try
572 * for 80% of the enums, 1 collision for 10% and never more than 5
573 * collisions for any enum (typical numbers). And the code is very
574 * simple, even though it feels a little magic. */
575
576 /**
577 * Handle irregular enums
578 *
579 * Some values don't conform to the "well-known type at context
580 * pointer + offset" pattern, so we have this function to catch all
581 * the corner cases. Typically, it's a computed value or a one-off
582 * pointer to a custom struct or something.
583 *
584 * In this case we can't return a pointer to the value, so we'll have
585 * to use the temporary variable 'v' declared back in the calling
586 * glGet*v() function to store the result.
587 *
588 * \param ctx the current context
589 * \param d the struct value_desc that describes the enum
590 * \param v pointer to the tmp declared in the calling glGet*v() function
591 */
592 static void
593 find_custom_value(struct gl_context *ctx, const struct value_desc *d, union value *v)
594 {
595 struct gl_buffer_object **buffer_obj;
596 struct gl_vertex_attrib_array *array;
597 GLuint unit, *p;
598
599 switch (d->pname) {
600 case GL_MAJOR_VERSION:
601 v->value_int = ctx->Version / 10;
602 break;
603 case GL_MINOR_VERSION:
604 v->value_int = ctx->Version % 10;
605 break;
606
607 case GL_TEXTURE_1D:
608 case GL_TEXTURE_2D:
609 case GL_TEXTURE_3D:
610 case GL_TEXTURE_CUBE_MAP:
611 case GL_TEXTURE_RECTANGLE_NV:
612 case GL_TEXTURE_EXTERNAL_OES:
613 v->value_bool = _mesa_IsEnabled(d->pname);
614 break;
615
616 case GL_LINE_STIPPLE_PATTERN:
617 /* This is the only GLushort, special case it here by promoting
618 * to an int rather than introducing a new type. */
619 v->value_int = ctx->Line.StipplePattern;
620 break;
621
622 case GL_CURRENT_RASTER_TEXTURE_COORDS:
623 unit = ctx->Texture.CurrentUnit;
624 v->value_float_4[0] = ctx->Current.RasterTexCoords[unit][0];
625 v->value_float_4[1] = ctx->Current.RasterTexCoords[unit][1];
626 v->value_float_4[2] = ctx->Current.RasterTexCoords[unit][2];
627 v->value_float_4[3] = ctx->Current.RasterTexCoords[unit][3];
628 break;
629
630 case GL_CURRENT_TEXTURE_COORDS:
631 unit = ctx->Texture.CurrentUnit;
632 v->value_float_4[0] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][0];
633 v->value_float_4[1] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][1];
634 v->value_float_4[2] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][2];
635 v->value_float_4[3] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][3];
636 break;
637
638 case GL_COLOR_WRITEMASK:
639 v->value_int_4[0] = ctx->Color.ColorMask[0][RCOMP] ? 1 : 0;
640 v->value_int_4[1] = ctx->Color.ColorMask[0][GCOMP] ? 1 : 0;
641 v->value_int_4[2] = ctx->Color.ColorMask[0][BCOMP] ? 1 : 0;
642 v->value_int_4[3] = ctx->Color.ColorMask[0][ACOMP] ? 1 : 0;
643 break;
644
645 case GL_EDGE_FLAG:
646 v->value_bool = ctx->Current.Attrib[VERT_ATTRIB_EDGEFLAG][0] == 1.0F;
647 break;
648
649 case GL_READ_BUFFER:
650 v->value_enum = ctx->ReadBuffer->ColorReadBuffer;
651 break;
652
653 case GL_MAP2_GRID_DOMAIN:
654 v->value_float_4[0] = ctx->Eval.MapGrid2u1;
655 v->value_float_4[1] = ctx->Eval.MapGrid2u2;
656 v->value_float_4[2] = ctx->Eval.MapGrid2v1;
657 v->value_float_4[3] = ctx->Eval.MapGrid2v2;
658 break;
659
660 case GL_TEXTURE_STACK_DEPTH:
661 unit = ctx->Texture.CurrentUnit;
662 v->value_int = ctx->TextureMatrixStack[unit].Depth + 1;
663 break;
664 case GL_TEXTURE_MATRIX:
665 unit = ctx->Texture.CurrentUnit;
666 v->value_matrix = ctx->TextureMatrixStack[unit].Top;
667 break;
668
669 case GL_TEXTURE_COORD_ARRAY:
670 case GL_TEXTURE_COORD_ARRAY_SIZE:
671 case GL_TEXTURE_COORD_ARRAY_TYPE:
672 case GL_TEXTURE_COORD_ARRAY_STRIDE:
673 array = &ctx->Array.VAO->VertexAttrib[VERT_ATTRIB_TEX(ctx->Array.ActiveTexture)];
674 v->value_int = *(GLuint *) ((char *) array + d->offset);
675 break;
676
677 case GL_ACTIVE_TEXTURE_ARB:
678 v->value_int = GL_TEXTURE0_ARB + ctx->Texture.CurrentUnit;
679 break;
680 case GL_CLIENT_ACTIVE_TEXTURE_ARB:
681 v->value_int = GL_TEXTURE0_ARB + ctx->Array.ActiveTexture;
682 break;
683
684 case GL_MODELVIEW_STACK_DEPTH:
685 case GL_PROJECTION_STACK_DEPTH:
686 v->value_int = *(GLint *) ((char *) ctx + d->offset) + 1;
687 break;
688
689 case GL_MAX_TEXTURE_SIZE:
690 case GL_MAX_3D_TEXTURE_SIZE:
691 case GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB:
692 p = (GLuint *) ((char *) ctx + d->offset);
693 v->value_int = 1 << (*p - 1);
694 break;
695
696 case GL_SCISSOR_BOX:
697 v->value_int_4[0] = ctx->Scissor.ScissorArray[0].X;
698 v->value_int_4[1] = ctx->Scissor.ScissorArray[0].Y;
699 v->value_int_4[2] = ctx->Scissor.ScissorArray[0].Width;
700 v->value_int_4[3] = ctx->Scissor.ScissorArray[0].Height;
701 break;
702
703 case GL_SCISSOR_TEST:
704 v->value_bool = ctx->Scissor.EnableFlags & 1;
705 break;
706
707 case GL_LIST_INDEX:
708 v->value_int =
709 ctx->ListState.CurrentList ? ctx->ListState.CurrentList->Name : 0;
710 break;
711 case GL_LIST_MODE:
712 if (!ctx->CompileFlag)
713 v->value_enum = 0;
714 else if (ctx->ExecuteFlag)
715 v->value_enum = GL_COMPILE_AND_EXECUTE;
716 else
717 v->value_enum = GL_COMPILE;
718 break;
719
720 case GL_VIEWPORT:
721 v->value_float_4[0] = ctx->ViewportArray[0].X;
722 v->value_float_4[1] = ctx->ViewportArray[0].Y;
723 v->value_float_4[2] = ctx->ViewportArray[0].Width;
724 v->value_float_4[3] = ctx->ViewportArray[0].Height;
725 break;
726
727 case GL_DEPTH_RANGE:
728 v->value_double_2[0] = ctx->ViewportArray[0].Near;
729 v->value_double_2[1] = ctx->ViewportArray[0].Far;
730 break;
731
732 case GL_ACTIVE_STENCIL_FACE_EXT:
733 v->value_enum = ctx->Stencil.ActiveFace ? GL_BACK : GL_FRONT;
734 break;
735
736 case GL_STENCIL_FAIL:
737 v->value_enum = ctx->Stencil.FailFunc[ctx->Stencil.ActiveFace];
738 break;
739 case GL_STENCIL_FUNC:
740 v->value_enum = ctx->Stencil.Function[ctx->Stencil.ActiveFace];
741 break;
742 case GL_STENCIL_PASS_DEPTH_FAIL:
743 v->value_enum = ctx->Stencil.ZFailFunc[ctx->Stencil.ActiveFace];
744 break;
745 case GL_STENCIL_PASS_DEPTH_PASS:
746 v->value_enum = ctx->Stencil.ZPassFunc[ctx->Stencil.ActiveFace];
747 break;
748 case GL_STENCIL_REF:
749 v->value_int = _mesa_get_stencil_ref(ctx, ctx->Stencil.ActiveFace);
750 break;
751 case GL_STENCIL_BACK_REF:
752 v->value_int = _mesa_get_stencil_ref(ctx, 1);
753 break;
754 case GL_STENCIL_VALUE_MASK:
755 v->value_int = ctx->Stencil.ValueMask[ctx->Stencil.ActiveFace];
756 break;
757 case GL_STENCIL_WRITEMASK:
758 v->value_int = ctx->Stencil.WriteMask[ctx->Stencil.ActiveFace];
759 break;
760
761 case GL_NUM_EXTENSIONS:
762 v->value_int = _mesa_get_extension_count(ctx);
763 break;
764
765 case GL_IMPLEMENTATION_COLOR_READ_TYPE_OES:
766 v->value_int = _mesa_get_color_read_type(ctx);
767 break;
768 case GL_IMPLEMENTATION_COLOR_READ_FORMAT_OES:
769 v->value_int = _mesa_get_color_read_format(ctx);
770 break;
771
772 case GL_CURRENT_MATRIX_STACK_DEPTH_ARB:
773 v->value_int = ctx->CurrentStack->Depth + 1;
774 break;
775 case GL_CURRENT_MATRIX_ARB:
776 case GL_TRANSPOSE_CURRENT_MATRIX_ARB:
777 v->value_matrix = ctx->CurrentStack->Top;
778 break;
779
780 case GL_NUM_COMPRESSED_TEXTURE_FORMATS_ARB:
781 v->value_int = _mesa_get_compressed_formats(ctx, NULL);
782 break;
783 case GL_COMPRESSED_TEXTURE_FORMATS_ARB:
784 v->value_int_n.n =
785 _mesa_get_compressed_formats(ctx, v->value_int_n.ints);
786 assert(v->value_int_n.n <= (int) ARRAY_SIZE(v->value_int_n.ints));
787 break;
788
789 case GL_MAX_VARYING_FLOATS_ARB:
790 v->value_int = ctx->Const.MaxVarying * 4;
791 break;
792
793 /* Various object names */
794
795 case GL_TEXTURE_BINDING_1D:
796 case GL_TEXTURE_BINDING_2D:
797 case GL_TEXTURE_BINDING_3D:
798 case GL_TEXTURE_BINDING_1D_ARRAY_EXT:
799 case GL_TEXTURE_BINDING_2D_ARRAY_EXT:
800 case GL_TEXTURE_BINDING_CUBE_MAP_ARB:
801 case GL_TEXTURE_BINDING_RECTANGLE_NV:
802 case GL_TEXTURE_BINDING_EXTERNAL_OES:
803 case GL_TEXTURE_BINDING_CUBE_MAP_ARRAY:
804 case GL_TEXTURE_BINDING_2D_MULTISAMPLE:
805 case GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY:
806 unit = ctx->Texture.CurrentUnit;
807 v->value_int =
808 ctx->Texture.Unit[unit].CurrentTex[d->offset]->Name;
809 break;
810
811 /* GL_EXT_packed_float */
812 case GL_RGBA_SIGNED_COMPONENTS_EXT:
813 {
814 /* Note: we only check the 0th color attachment. */
815 const struct gl_renderbuffer *rb =
816 ctx->DrawBuffer->_ColorDrawBuffers[0];
817 if (rb && _mesa_is_format_signed(rb->Format)) {
818 /* Issue 17 of GL_EXT_packed_float: If a component (such as
819 * alpha) has zero bits, the component should not be considered
820 * signed and so the bit for the respective component should be
821 * zeroed.
822 */
823 GLint r_bits =
824 _mesa_get_format_bits(rb->Format, GL_RED_BITS);
825 GLint g_bits =
826 _mesa_get_format_bits(rb->Format, GL_GREEN_BITS);
827 GLint b_bits =
828 _mesa_get_format_bits(rb->Format, GL_BLUE_BITS);
829 GLint a_bits =
830 _mesa_get_format_bits(rb->Format, GL_ALPHA_BITS);
831 GLint l_bits =
832 _mesa_get_format_bits(rb->Format, GL_TEXTURE_LUMINANCE_SIZE);
833 GLint i_bits =
834 _mesa_get_format_bits(rb->Format, GL_TEXTURE_INTENSITY_SIZE);
835
836 v->value_int_4[0] = r_bits + l_bits + i_bits > 0;
837 v->value_int_4[1] = g_bits + l_bits + i_bits > 0;
838 v->value_int_4[2] = b_bits + l_bits + i_bits > 0;
839 v->value_int_4[3] = a_bits + i_bits > 0;
840 }
841 else {
842 v->value_int_4[0] =
843 v->value_int_4[1] =
844 v->value_int_4[2] =
845 v->value_int_4[3] = 0;
846 }
847 }
848 break;
849
850 /* GL_ARB_vertex_buffer_object */
851 case GL_VERTEX_ARRAY_BUFFER_BINDING_ARB:
852 case GL_NORMAL_ARRAY_BUFFER_BINDING_ARB:
853 case GL_COLOR_ARRAY_BUFFER_BINDING_ARB:
854 case GL_INDEX_ARRAY_BUFFER_BINDING_ARB:
855 case GL_EDGE_FLAG_ARRAY_BUFFER_BINDING_ARB:
856 case GL_SECONDARY_COLOR_ARRAY_BUFFER_BINDING_ARB:
857 case GL_FOG_COORDINATE_ARRAY_BUFFER_BINDING_ARB:
858 buffer_obj = (struct gl_buffer_object **)
859 ((char *) ctx->Array.VAO + d->offset);
860 v->value_int = (*buffer_obj)->Name;
861 break;
862 case GL_ARRAY_BUFFER_BINDING_ARB:
863 v->value_int = ctx->Array.ArrayBufferObj->Name;
864 break;
865 case GL_TEXTURE_COORD_ARRAY_BUFFER_BINDING_ARB:
866 v->value_int =
867 ctx->Array.VAO->VertexBinding[VERT_ATTRIB_TEX(ctx->Array.ActiveTexture)].BufferObj->Name;
868 break;
869 case GL_ELEMENT_ARRAY_BUFFER_BINDING_ARB:
870 v->value_int = ctx->Array.VAO->IndexBufferObj->Name;
871 break;
872
873 /* ARB_vertex_array_bgra */
874 case GL_COLOR_ARRAY_SIZE:
875 array = &ctx->Array.VAO->VertexAttrib[VERT_ATTRIB_COLOR0];
876 v->value_int = array->Format == GL_BGRA ? GL_BGRA : array->Size;
877 break;
878 case GL_SECONDARY_COLOR_ARRAY_SIZE:
879 array = &ctx->Array.VAO->VertexAttrib[VERT_ATTRIB_COLOR1];
880 v->value_int = array->Format == GL_BGRA ? GL_BGRA : array->Size;
881 break;
882
883 /* ARB_copy_buffer */
884 case GL_COPY_READ_BUFFER:
885 v->value_int = ctx->CopyReadBuffer->Name;
886 break;
887 case GL_COPY_WRITE_BUFFER:
888 v->value_int = ctx->CopyWriteBuffer->Name;
889 break;
890
891 case GL_PIXEL_PACK_BUFFER_BINDING_EXT:
892 v->value_int = ctx->Pack.BufferObj->Name;
893 break;
894 case GL_PIXEL_UNPACK_BUFFER_BINDING_EXT:
895 v->value_int = ctx->Unpack.BufferObj->Name;
896 break;
897 case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING:
898 v->value_int = ctx->TransformFeedback.CurrentBuffer->Name;
899 break;
900 case GL_TRANSFORM_FEEDBACK_BUFFER_PAUSED:
901 v->value_int = ctx->TransformFeedback.CurrentObject->Paused;
902 break;
903 case GL_TRANSFORM_FEEDBACK_BUFFER_ACTIVE:
904 v->value_int = ctx->TransformFeedback.CurrentObject->Active;
905 break;
906 case GL_TRANSFORM_FEEDBACK_BINDING:
907 v->value_int = ctx->TransformFeedback.CurrentObject->Name;
908 break;
909 case GL_CURRENT_PROGRAM:
910 /* The Changelog of the ARB_separate_shader_objects spec says:
911 *
912 * 24 25 Jul 2011 pbrown Remove the language erroneously deleting
913 * CURRENT_PROGRAM. In the EXT extension, this
914 * token was aliased to ACTIVE_PROGRAM_EXT, and
915 * was used to indicate the last program set by
916 * either ActiveProgramEXT or UseProgram. In
917 * the ARB extension, the SSO active programs
918 * are now program pipeline object state and
919 * CURRENT_PROGRAM should still be used to query
920 * the last program set by UseProgram (bug 7822).
921 */
922 v->value_int =
923 ctx->Shader.ActiveProgram ? ctx->Shader.ActiveProgram->Name : 0;
924 break;
925 case GL_READ_FRAMEBUFFER_BINDING_EXT:
926 v->value_int = ctx->ReadBuffer->Name;
927 break;
928 case GL_RENDERBUFFER_BINDING_EXT:
929 v->value_int =
930 ctx->CurrentRenderbuffer ? ctx->CurrentRenderbuffer->Name : 0;
931 break;
932 case GL_POINT_SIZE_ARRAY_BUFFER_BINDING_OES:
933 v->value_int = ctx->Array.VAO->VertexBinding[VERT_ATTRIB_POINT_SIZE].BufferObj->Name;
934 break;
935
936 case GL_FOG_COLOR:
937 if (_mesa_get_clamp_fragment_color(ctx, ctx->DrawBuffer))
938 COPY_4FV(v->value_float_4, ctx->Fog.Color);
939 else
940 COPY_4FV(v->value_float_4, ctx->Fog.ColorUnclamped);
941 break;
942 case GL_COLOR_CLEAR_VALUE:
943 if (_mesa_get_clamp_fragment_color(ctx, ctx->DrawBuffer)) {
944 v->value_float_4[0] = CLAMP(ctx->Color.ClearColor.f[0], 0.0F, 1.0F);
945 v->value_float_4[1] = CLAMP(ctx->Color.ClearColor.f[1], 0.0F, 1.0F);
946 v->value_float_4[2] = CLAMP(ctx->Color.ClearColor.f[2], 0.0F, 1.0F);
947 v->value_float_4[3] = CLAMP(ctx->Color.ClearColor.f[3], 0.0F, 1.0F);
948 } else
949 COPY_4FV(v->value_float_4, ctx->Color.ClearColor.f);
950 break;
951 case GL_BLEND_COLOR_EXT:
952 if (_mesa_get_clamp_fragment_color(ctx, ctx->DrawBuffer))
953 COPY_4FV(v->value_float_4, ctx->Color.BlendColor);
954 else
955 COPY_4FV(v->value_float_4, ctx->Color.BlendColorUnclamped);
956 break;
957 case GL_ALPHA_TEST_REF:
958 if (_mesa_get_clamp_fragment_color(ctx, ctx->DrawBuffer))
959 v->value_float = ctx->Color.AlphaRef;
960 else
961 v->value_float = ctx->Color.AlphaRefUnclamped;
962 break;
963 case GL_MAX_VERTEX_UNIFORM_VECTORS:
964 v->value_int = ctx->Const.Program[MESA_SHADER_VERTEX].MaxUniformComponents / 4;
965 break;
966
967 case GL_MAX_FRAGMENT_UNIFORM_VECTORS:
968 v->value_int = ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxUniformComponents / 4;
969 break;
970
971 /* GL_ARB_texture_buffer_object */
972 case GL_TEXTURE_BUFFER_ARB:
973 v->value_int = ctx->Texture.BufferObject->Name;
974 break;
975 case GL_TEXTURE_BINDING_BUFFER_ARB:
976 unit = ctx->Texture.CurrentUnit;
977 v->value_int =
978 ctx->Texture.Unit[unit].CurrentTex[TEXTURE_BUFFER_INDEX]->Name;
979 break;
980 case GL_TEXTURE_BUFFER_DATA_STORE_BINDING_ARB:
981 {
982 struct gl_buffer_object *buf =
983 ctx->Texture.Unit[ctx->Texture.CurrentUnit]
984 .CurrentTex[TEXTURE_BUFFER_INDEX]->BufferObject;
985 v->value_int = buf ? buf->Name : 0;
986 }
987 break;
988 case GL_TEXTURE_BUFFER_FORMAT_ARB:
989 v->value_int = ctx->Texture.Unit[ctx->Texture.CurrentUnit]
990 .CurrentTex[TEXTURE_BUFFER_INDEX]->BufferObjectFormat;
991 break;
992
993 /* GL_ARB_sampler_objects */
994 case GL_SAMPLER_BINDING:
995 {
996 struct gl_sampler_object *samp =
997 ctx->Texture.Unit[ctx->Texture.CurrentUnit].Sampler;
998 v->value_int = samp ? samp->Name : 0;
999 }
1000 break;
1001 /* GL_ARB_uniform_buffer_object */
1002 case GL_UNIFORM_BUFFER_BINDING:
1003 v->value_int = ctx->UniformBuffer->Name;
1004 break;
1005 /* GL_ARB_shader_storage_buffer_object */
1006 case GL_SHADER_STORAGE_BUFFER_BINDING:
1007 v->value_int = ctx->ShaderStorageBuffer->Name;
1008 break;
1009 /* GL_ARB_query_buffer_object */
1010 case GL_QUERY_BUFFER_BINDING:
1011 v->value_int = ctx->QueryBuffer->Name;
1012 break;
1013 /* GL_ARB_timer_query */
1014 case GL_TIMESTAMP:
1015 if (ctx->Driver.GetTimestamp) {
1016 v->value_int64 = ctx->Driver.GetTimestamp(ctx);
1017 }
1018 else {
1019 _mesa_problem(ctx, "driver doesn't implement GetTimestamp");
1020 }
1021 break;
1022 /* GL_KHR_DEBUG */
1023 case GL_DEBUG_OUTPUT:
1024 case GL_DEBUG_OUTPUT_SYNCHRONOUS:
1025 case GL_DEBUG_LOGGED_MESSAGES:
1026 case GL_DEBUG_NEXT_LOGGED_MESSAGE_LENGTH:
1027 case GL_DEBUG_GROUP_STACK_DEPTH:
1028 v->value_int = _mesa_get_debug_state_int(ctx, d->pname);
1029 break;
1030 /* GL_ARB_shader_atomic_counters */
1031 case GL_ATOMIC_COUNTER_BUFFER_BINDING:
1032 if (ctx->AtomicBuffer) {
1033 v->value_int = ctx->AtomicBuffer->Name;
1034 } else {
1035 v->value_int = 0;
1036 }
1037 break;
1038 /* GL_ARB_draw_indirect */
1039 case GL_DRAW_INDIRECT_BUFFER_BINDING:
1040 v->value_int = ctx->DrawIndirectBuffer->Name;
1041 break;
1042 /* GL_ARB_indirect_parameters */
1043 case GL_PARAMETER_BUFFER_BINDING_ARB:
1044 v->value_int = ctx->ParameterBuffer->Name;
1045 break;
1046 /* GL_ARB_separate_shader_objects */
1047 case GL_PROGRAM_PIPELINE_BINDING:
1048 if (ctx->Pipeline.Current) {
1049 v->value_int = ctx->Pipeline.Current->Name;
1050 } else {
1051 v->value_int = 0;
1052 }
1053 break;
1054 /* GL_ARB_compute_shader */
1055 case GL_DISPATCH_INDIRECT_BUFFER_BINDING:
1056 v->value_int = ctx->DispatchIndirectBuffer->Name;
1057 break;
1058 /* GL_ARB_multisample */
1059 case GL_SAMPLES:
1060 v->value_int = _mesa_geometric_samples(ctx->DrawBuffer);
1061 break;
1062 case GL_SAMPLE_BUFFERS:
1063 v->value_int = _mesa_geometric_samples(ctx->DrawBuffer) > 0;
1064 break;
1065 /* GL_ATI_meminfo & GL_NVX_gpu_memory_info */
1066 case GL_VBO_FREE_MEMORY_ATI:
1067 case GL_TEXTURE_FREE_MEMORY_ATI:
1068 case GL_RENDERBUFFER_FREE_MEMORY_ATI:
1069 case GL_GPU_MEMORY_INFO_DEDICATED_VIDMEM_NVX:
1070 case GL_GPU_MEMORY_INFO_TOTAL_AVAILABLE_MEMORY_NVX:
1071 case GL_GPU_MEMORY_INFO_CURRENT_AVAILABLE_VIDMEM_NVX:
1072 case GL_GPU_MEMORY_INFO_EVICTION_COUNT_NVX:
1073 case GL_GPU_MEMORY_INFO_EVICTED_MEMORY_NVX:
1074 {
1075 struct gl_memory_info info;
1076
1077 ctx->Driver.QueryMemoryInfo(ctx, &info);
1078
1079 if (d->pname == GL_GPU_MEMORY_INFO_DEDICATED_VIDMEM_NVX)
1080 v->value_int = info.total_device_memory;
1081 else if (d->pname == GL_GPU_MEMORY_INFO_TOTAL_AVAILABLE_MEMORY_NVX)
1082 v->value_int = info.total_device_memory +
1083 info.total_staging_memory;
1084 else if (d->pname == GL_GPU_MEMORY_INFO_CURRENT_AVAILABLE_VIDMEM_NVX)
1085 v->value_int = info.avail_device_memory;
1086 else if (d->pname == GL_GPU_MEMORY_INFO_EVICTION_COUNT_NVX)
1087 v->value_int = info.nr_device_memory_evictions;
1088 else if (d->pname == GL_GPU_MEMORY_INFO_EVICTED_MEMORY_NVX)
1089 v->value_int = info.device_memory_evicted;
1090 else {
1091 /* ATI free memory enums.
1092 *
1093 * Since the GPU memory is (usually) page-table based, every two
1094 * consecutive elements are equal. From the GL_ATI_meminfo
1095 * specification:
1096 *
1097 * "param[0] - total memory free in the pool
1098 * param[1] - largest available free block in the pool
1099 * param[2] - total auxiliary memory free
1100 * param[3] - largest auxiliary free block"
1101 *
1102 * All three (VBO, TEXTURE, RENDERBUFFER) queries return
1103 * the same numbers here.
1104 */
1105 v->value_int_4[0] = info.avail_device_memory;
1106 v->value_int_4[1] = info.avail_device_memory;
1107 v->value_int_4[2] = info.avail_staging_memory;
1108 v->value_int_4[3] = info.avail_staging_memory;
1109 }
1110 }
1111 break;
1112 }
1113 }
1114
1115 /**
1116 * Check extra constraints on a struct value_desc descriptor
1117 *
1118 * If a struct value_desc has a non-NULL extra pointer, it means that
1119 * there are a number of extra constraints to check or actions to
1120 * perform. The extras is just an integer array where each integer
1121 * encode different constraints or actions.
1122 *
1123 * \param ctx current context
1124 * \param func name of calling glGet*v() function for error reporting
1125 * \param d the struct value_desc that has the extra constraints
1126 *
1127 * \return GL_FALSE if all of the constraints were not satisfied,
1128 * otherwise GL_TRUE.
1129 */
1130 static GLboolean
1131 check_extra(struct gl_context *ctx, const char *func, const struct value_desc *d)
1132 {
1133 const GLuint version = ctx->Version;
1134 GLboolean api_check = GL_FALSE;
1135 GLboolean api_found = GL_FALSE;
1136 const int *e;
1137
1138 for (e = d->extra; *e != EXTRA_END; e++) {
1139 switch (*e) {
1140 case EXTRA_VERSION_30:
1141 api_check = GL_TRUE;
1142 if (version >= 30)
1143 api_found = GL_TRUE;
1144 break;
1145 case EXTRA_VERSION_31:
1146 api_check = GL_TRUE;
1147 if (version >= 31)
1148 api_found = GL_TRUE;
1149 break;
1150 case EXTRA_VERSION_32:
1151 api_check = GL_TRUE;
1152 if (version >= 32)
1153 api_found = GL_TRUE;
1154 break;
1155 case EXTRA_NEW_FRAG_CLAMP:
1156 if (ctx->NewState & (_NEW_BUFFERS | _NEW_FRAG_CLAMP))
1157 _mesa_update_state(ctx);
1158 break;
1159 case EXTRA_API_ES2:
1160 api_check = GL_TRUE;
1161 if (ctx->API == API_OPENGLES2)
1162 api_found = GL_TRUE;
1163 break;
1164 case EXTRA_API_ES3:
1165 api_check = GL_TRUE;
1166 if (_mesa_is_gles3(ctx))
1167 api_found = GL_TRUE;
1168 break;
1169 case EXTRA_API_ES31:
1170 api_check = GL_TRUE;
1171 if (_mesa_is_gles31(ctx))
1172 api_found = GL_TRUE;
1173 break;
1174 case EXTRA_API_ES32:
1175 api_check = GL_TRUE;
1176 if (_mesa_is_gles32(ctx))
1177 api_found = GL_TRUE;
1178 break;
1179 case EXTRA_API_GL:
1180 api_check = GL_TRUE;
1181 if (_mesa_is_desktop_gl(ctx))
1182 api_found = GL_TRUE;
1183 break;
1184 case EXTRA_API_GL_CORE:
1185 api_check = GL_TRUE;
1186 if (ctx->API == API_OPENGL_CORE)
1187 api_found = GL_TRUE;
1188 break;
1189 case EXTRA_NEW_BUFFERS:
1190 if (ctx->NewState & _NEW_BUFFERS)
1191 _mesa_update_state(ctx);
1192 break;
1193 case EXTRA_FLUSH_CURRENT:
1194 FLUSH_CURRENT(ctx, 0);
1195 break;
1196 case EXTRA_VALID_DRAW_BUFFER:
1197 if (d->pname - GL_DRAW_BUFFER0_ARB >= ctx->Const.MaxDrawBuffers) {
1198 _mesa_error(ctx, GL_INVALID_OPERATION, "%s(draw buffer %u)",
1199 func, d->pname - GL_DRAW_BUFFER0_ARB);
1200 return GL_FALSE;
1201 }
1202 break;
1203 case EXTRA_VALID_TEXTURE_UNIT:
1204 if (ctx->Texture.CurrentUnit >= ctx->Const.MaxTextureCoordUnits) {
1205 _mesa_error(ctx, GL_INVALID_OPERATION, "%s(texture %u)",
1206 func, ctx->Texture.CurrentUnit);
1207 return GL_FALSE;
1208 }
1209 break;
1210 case EXTRA_VALID_CLIP_DISTANCE:
1211 if (d->pname - GL_CLIP_DISTANCE0 >= ctx->Const.MaxClipPlanes) {
1212 _mesa_error(ctx, GL_INVALID_ENUM, "%s(clip distance %u)",
1213 func, d->pname - GL_CLIP_DISTANCE0);
1214 return GL_FALSE;
1215 }
1216 break;
1217 case EXTRA_GLSL_130:
1218 api_check = GL_TRUE;
1219 if (ctx->Const.GLSLVersion >= 130)
1220 api_found = GL_TRUE;
1221 break;
1222 case EXTRA_EXT_UBO_GS:
1223 api_check = GL_TRUE;
1224 if (ctx->Extensions.ARB_uniform_buffer_object &&
1225 _mesa_has_geometry_shaders(ctx))
1226 api_found = GL_TRUE;
1227 break;
1228 case EXTRA_EXT_ATOMICS_GS:
1229 api_check = GL_TRUE;
1230 if (ctx->Extensions.ARB_shader_atomic_counters &&
1231 _mesa_has_geometry_shaders(ctx))
1232 api_found = GL_TRUE;
1233 break;
1234 case EXTRA_EXT_SHADER_IMAGE_GS:
1235 api_check = GL_TRUE;
1236 if (ctx->Extensions.ARB_shader_image_load_store &&
1237 _mesa_has_geometry_shaders(ctx))
1238 api_found = GL_TRUE;
1239 break;
1240 case EXTRA_EXT_ATOMICS_TESS:
1241 api_check = GL_TRUE;
1242 api_found = ctx->Extensions.ARB_shader_atomic_counters &&
1243 _mesa_has_tessellation(ctx);
1244 break;
1245 case EXTRA_EXT_SHADER_IMAGE_TESS:
1246 api_check = GL_TRUE;
1247 api_found = ctx->Extensions.ARB_shader_image_load_store &&
1248 _mesa_has_tessellation(ctx);
1249 break;
1250 case EXTRA_EXT_SSBO_GS:
1251 api_check = GL_TRUE;
1252 if (ctx->Extensions.ARB_shader_storage_buffer_object &&
1253 _mesa_has_geometry_shaders(ctx))
1254 api_found = GL_TRUE;
1255 break;
1256 case EXTRA_EXT_FB_NO_ATTACH_GS:
1257 api_check = GL_TRUE;
1258 if (ctx->Extensions.ARB_framebuffer_no_attachments &&
1259 (_mesa_is_desktop_gl(ctx) ||
1260 _mesa_has_OES_geometry_shader(ctx)))
1261 api_found = GL_TRUE;
1262 break;
1263 case EXTRA_EXT_ES_GS:
1264 api_check = GL_TRUE;
1265 if (_mesa_has_OES_geometry_shader(ctx))
1266 api_found = GL_TRUE;
1267 break;
1268 case EXTRA_END:
1269 break;
1270 default: /* *e is a offset into the extension struct */
1271 api_check = GL_TRUE;
1272 if (*(GLboolean *) ((char *) &ctx->Extensions + *e))
1273 api_found = GL_TRUE;
1274 break;
1275 }
1276 }
1277
1278 if (api_check && !api_found) {
1279 _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func,
1280 _mesa_enum_to_string(d->pname));
1281 return GL_FALSE;
1282 }
1283
1284 return GL_TRUE;
1285 }
1286
1287 static const struct value_desc error_value =
1288 { 0, 0, TYPE_INVALID, NO_OFFSET, NO_EXTRA };
1289
1290 /**
1291 * Find the struct value_desc corresponding to the enum 'pname'.
1292 *
1293 * We hash the enum value to get an index into the 'table' array,
1294 * which holds the index in the 'values' array of struct value_desc.
1295 * Once we've found the entry, we do the extra checks, if any, then
1296 * look up the value and return a pointer to it.
1297 *
1298 * If the value has to be computed (for example, it's the result of a
1299 * function call or we need to add 1 to it), we use the tmp 'v' to
1300 * store the result.
1301 *
1302 * \param func name of glGet*v() func for error reporting
1303 * \param pname the enum value we're looking up
1304 * \param p is were we return the pointer to the value
1305 * \param v a tmp union value variable in the calling glGet*v() function
1306 *
1307 * \return the struct value_desc corresponding to the enum or a struct
1308 * value_desc of TYPE_INVALID if not found. This lets the calling
1309 * glGet*v() function jump right into a switch statement and
1310 * handle errors there instead of having to check for NULL.
1311 */
1312 static const struct value_desc *
1313 find_value(const char *func, GLenum pname, void **p, union value *v)
1314 {
1315 GET_CURRENT_CONTEXT(ctx);
1316 struct gl_texture_unit *unit;
1317 int mask, hash;
1318 const struct value_desc *d;
1319 int api;
1320
1321 api = ctx->API;
1322 /* We index into the table_set[] list of per-API hash tables using the API's
1323 * value in the gl_api enum. Since GLES 3 doesn't have an API_OPENGL* enum
1324 * value since it's compatible with GLES2 its entry in table_set[] is at the
1325 * end.
1326 */
1327 STATIC_ASSERT(ARRAY_SIZE(table_set) == API_OPENGL_LAST + 4);
1328 if (ctx->API == API_OPENGLES2) {
1329 if (ctx->Version >= 32)
1330 api = API_OPENGL_LAST + 3;
1331 else if (ctx->Version >= 31)
1332 api = API_OPENGL_LAST + 2;
1333 else if (ctx->Version >= 30)
1334 api = API_OPENGL_LAST + 1;
1335 }
1336 mask = ARRAY_SIZE(table(api)) - 1;
1337 hash = (pname * prime_factor);
1338 while (1) {
1339 int idx = table(api)[hash & mask];
1340
1341 /* If the enum isn't valid, the hash walk ends with index 0,
1342 * pointing to the first entry of values[] which doesn't hold
1343 * any valid enum. */
1344 if (unlikely(idx == 0)) {
1345 _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func,
1346 _mesa_enum_to_string(pname));
1347 return &error_value;
1348 }
1349
1350 d = &values[idx];
1351 if (likely(d->pname == pname))
1352 break;
1353
1354 hash += prime_step;
1355 }
1356
1357 if (unlikely(d->extra && !check_extra(ctx, func, d)))
1358 return &error_value;
1359
1360 switch (d->location) {
1361 case LOC_BUFFER:
1362 *p = ((char *) ctx->DrawBuffer + d->offset);
1363 return d;
1364 case LOC_CONTEXT:
1365 *p = ((char *) ctx + d->offset);
1366 return d;
1367 case LOC_ARRAY:
1368 *p = ((char *) ctx->Array.VAO + d->offset);
1369 return d;
1370 case LOC_TEXUNIT:
1371 unit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
1372 *p = ((char *) unit + d->offset);
1373 return d;
1374 case LOC_CUSTOM:
1375 find_custom_value(ctx, d, v);
1376 *p = v;
1377 return d;
1378 default:
1379 assert(0);
1380 break;
1381 }
1382
1383 /* silence warning */
1384 return &error_value;
1385 }
1386
1387 static const int transpose[] = {
1388 0, 4, 8, 12,
1389 1, 5, 9, 13,
1390 2, 6, 10, 14,
1391 3, 7, 11, 15
1392 };
1393
1394 void GLAPIENTRY
1395 _mesa_GetBooleanv(GLenum pname, GLboolean *params)
1396 {
1397 const struct value_desc *d;
1398 union value v;
1399 GLmatrix *m;
1400 int shift, i;
1401 void *p;
1402
1403 d = find_value("glGetBooleanv", pname, &p, &v);
1404 switch (d->type) {
1405 case TYPE_INVALID:
1406 break;
1407 case TYPE_CONST:
1408 params[0] = INT_TO_BOOLEAN(d->offset);
1409 break;
1410
1411 case TYPE_FLOAT_8:
1412 params[7] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[7]);
1413 params[6] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[6]);
1414 params[5] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[5]);
1415 params[4] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[4]);
1416 case TYPE_FLOAT_4:
1417 case TYPE_FLOATN_4:
1418 params[3] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[3]);
1419 case TYPE_FLOAT_3:
1420 case TYPE_FLOATN_3:
1421 params[2] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[2]);
1422 case TYPE_FLOAT_2:
1423 case TYPE_FLOATN_2:
1424 params[1] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[1]);
1425 case TYPE_FLOAT:
1426 case TYPE_FLOATN:
1427 params[0] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[0]);
1428 break;
1429
1430 case TYPE_DOUBLEN_2:
1431 params[1] = FLOAT_TO_BOOLEAN(((GLdouble *) p)[1]);
1432 case TYPE_DOUBLEN:
1433 params[0] = FLOAT_TO_BOOLEAN(((GLdouble *) p)[0]);
1434 break;
1435
1436 case TYPE_INT_4:
1437 params[3] = INT_TO_BOOLEAN(((GLint *) p)[3]);
1438 case TYPE_INT_3:
1439 params[2] = INT_TO_BOOLEAN(((GLint *) p)[2]);
1440 case TYPE_INT_2:
1441 case TYPE_ENUM_2:
1442 params[1] = INT_TO_BOOLEAN(((GLint *) p)[1]);
1443 case TYPE_INT:
1444 case TYPE_ENUM:
1445 params[0] = INT_TO_BOOLEAN(((GLint *) p)[0]);
1446 break;
1447
1448 case TYPE_INT_N:
1449 for (i = 0; i < v.value_int_n.n; i++)
1450 params[i] = INT_TO_BOOLEAN(v.value_int_n.ints[i]);
1451 break;
1452
1453 case TYPE_INT64:
1454 params[0] = INT64_TO_BOOLEAN(((GLint64 *) p)[0]);
1455 break;
1456
1457 case TYPE_BOOLEAN:
1458 params[0] = ((GLboolean*) p)[0];
1459 break;
1460
1461 case TYPE_MATRIX:
1462 m = *(GLmatrix **) p;
1463 for (i = 0; i < 16; i++)
1464 params[i] = FLOAT_TO_BOOLEAN(m->m[i]);
1465 break;
1466
1467 case TYPE_MATRIX_T:
1468 m = *(GLmatrix **) p;
1469 for (i = 0; i < 16; i++)
1470 params[i] = FLOAT_TO_BOOLEAN(m->m[transpose[i]]);
1471 break;
1472
1473 case TYPE_BIT_0:
1474 case TYPE_BIT_1:
1475 case TYPE_BIT_2:
1476 case TYPE_BIT_3:
1477 case TYPE_BIT_4:
1478 case TYPE_BIT_5:
1479 case TYPE_BIT_6:
1480 case TYPE_BIT_7:
1481 shift = d->type - TYPE_BIT_0;
1482 params[0] = (*(GLbitfield *) p >> shift) & 1;
1483 break;
1484 }
1485 }
1486
1487 void GLAPIENTRY
1488 _mesa_GetFloatv(GLenum pname, GLfloat *params)
1489 {
1490 const struct value_desc *d;
1491 union value v;
1492 GLmatrix *m;
1493 int shift, i;
1494 void *p;
1495
1496 d = find_value("glGetFloatv", pname, &p, &v);
1497 switch (d->type) {
1498 case TYPE_INVALID:
1499 break;
1500 case TYPE_CONST:
1501 params[0] = (GLfloat) d->offset;
1502 break;
1503
1504 case TYPE_FLOAT_8:
1505 params[7] = ((GLfloat *) p)[7];
1506 params[6] = ((GLfloat *) p)[6];
1507 params[5] = ((GLfloat *) p)[5];
1508 params[4] = ((GLfloat *) p)[4];
1509 case TYPE_FLOAT_4:
1510 case TYPE_FLOATN_4:
1511 params[3] = ((GLfloat *) p)[3];
1512 case TYPE_FLOAT_3:
1513 case TYPE_FLOATN_3:
1514 params[2] = ((GLfloat *) p)[2];
1515 case TYPE_FLOAT_2:
1516 case TYPE_FLOATN_2:
1517 params[1] = ((GLfloat *) p)[1];
1518 case TYPE_FLOAT:
1519 case TYPE_FLOATN:
1520 params[0] = ((GLfloat *) p)[0];
1521 break;
1522
1523 case TYPE_DOUBLEN_2:
1524 params[1] = (GLfloat) (((GLdouble *) p)[1]);
1525 case TYPE_DOUBLEN:
1526 params[0] = (GLfloat) (((GLdouble *) p)[0]);
1527 break;
1528
1529 case TYPE_INT_4:
1530 params[3] = (GLfloat) (((GLint *) p)[3]);
1531 case TYPE_INT_3:
1532 params[2] = (GLfloat) (((GLint *) p)[2]);
1533 case TYPE_INT_2:
1534 case TYPE_ENUM_2:
1535 params[1] = (GLfloat) (((GLint *) p)[1]);
1536 case TYPE_INT:
1537 case TYPE_ENUM:
1538 params[0] = (GLfloat) (((GLint *) p)[0]);
1539 break;
1540
1541 case TYPE_INT_N:
1542 for (i = 0; i < v.value_int_n.n; i++)
1543 params[i] = INT_TO_FLOAT(v.value_int_n.ints[i]);
1544 break;
1545
1546 case TYPE_INT64:
1547 params[0] = (GLfloat) (((GLint64 *) p)[0]);
1548 break;
1549
1550 case TYPE_BOOLEAN:
1551 params[0] = BOOLEAN_TO_FLOAT(*(GLboolean*) p);
1552 break;
1553
1554 case TYPE_MATRIX:
1555 m = *(GLmatrix **) p;
1556 for (i = 0; i < 16; i++)
1557 params[i] = m->m[i];
1558 break;
1559
1560 case TYPE_MATRIX_T:
1561 m = *(GLmatrix **) p;
1562 for (i = 0; i < 16; i++)
1563 params[i] = m->m[transpose[i]];
1564 break;
1565
1566 case TYPE_BIT_0:
1567 case TYPE_BIT_1:
1568 case TYPE_BIT_2:
1569 case TYPE_BIT_3:
1570 case TYPE_BIT_4:
1571 case TYPE_BIT_5:
1572 case TYPE_BIT_6:
1573 case TYPE_BIT_7:
1574 shift = d->type - TYPE_BIT_0;
1575 params[0] = BOOLEAN_TO_FLOAT((*(GLbitfield *) p >> shift) & 1);
1576 break;
1577 }
1578 }
1579
1580 void GLAPIENTRY
1581 _mesa_GetIntegerv(GLenum pname, GLint *params)
1582 {
1583 const struct value_desc *d;
1584 union value v;
1585 GLmatrix *m;
1586 int shift, i;
1587 void *p;
1588
1589 d = find_value("glGetIntegerv", pname, &p, &v);
1590 switch (d->type) {
1591 case TYPE_INVALID:
1592 break;
1593 case TYPE_CONST:
1594 params[0] = d->offset;
1595 break;
1596
1597 case TYPE_FLOAT_8:
1598 params[7] = IROUND(((GLfloat *) p)[7]);
1599 params[6] = IROUND(((GLfloat *) p)[6]);
1600 params[5] = IROUND(((GLfloat *) p)[5]);
1601 params[4] = IROUND(((GLfloat *) p)[4]);
1602 case TYPE_FLOAT_4:
1603 params[3] = IROUND(((GLfloat *) p)[3]);
1604 case TYPE_FLOAT_3:
1605 params[2] = IROUND(((GLfloat *) p)[2]);
1606 case TYPE_FLOAT_2:
1607 params[1] = IROUND(((GLfloat *) p)[1]);
1608 case TYPE_FLOAT:
1609 params[0] = IROUND(((GLfloat *) p)[0]);
1610 break;
1611
1612 case TYPE_FLOATN_4:
1613 params[3] = FLOAT_TO_INT(((GLfloat *) p)[3]);
1614 case TYPE_FLOATN_3:
1615 params[2] = FLOAT_TO_INT(((GLfloat *) p)[2]);
1616 case TYPE_FLOATN_2:
1617 params[1] = FLOAT_TO_INT(((GLfloat *) p)[1]);
1618 case TYPE_FLOATN:
1619 params[0] = FLOAT_TO_INT(((GLfloat *) p)[0]);
1620 break;
1621
1622 case TYPE_DOUBLEN_2:
1623 params[1] = FLOAT_TO_INT(((GLdouble *) p)[1]);
1624 case TYPE_DOUBLEN:
1625 params[0] = FLOAT_TO_INT(((GLdouble *) p)[0]);
1626 break;
1627
1628 case TYPE_INT_4:
1629 params[3] = ((GLint *) p)[3];
1630 case TYPE_INT_3:
1631 params[2] = ((GLint *) p)[2];
1632 case TYPE_INT_2:
1633 case TYPE_ENUM_2:
1634 params[1] = ((GLint *) p)[1];
1635 case TYPE_INT:
1636 case TYPE_ENUM:
1637 params[0] = ((GLint *) p)[0];
1638 break;
1639
1640 case TYPE_INT_N:
1641 for (i = 0; i < v.value_int_n.n; i++)
1642 params[i] = v.value_int_n.ints[i];
1643 break;
1644
1645 case TYPE_INT64:
1646 params[0] = INT64_TO_INT(((GLint64 *) p)[0]);
1647 break;
1648
1649 case TYPE_BOOLEAN:
1650 params[0] = BOOLEAN_TO_INT(*(GLboolean*) p);
1651 break;
1652
1653 case TYPE_MATRIX:
1654 m = *(GLmatrix **) p;
1655 for (i = 0; i < 16; i++)
1656 params[i] = FLOAT_TO_INT(m->m[i]);
1657 break;
1658
1659 case TYPE_MATRIX_T:
1660 m = *(GLmatrix **) p;
1661 for (i = 0; i < 16; i++)
1662 params[i] = FLOAT_TO_INT(m->m[transpose[i]]);
1663 break;
1664
1665 case TYPE_BIT_0:
1666 case TYPE_BIT_1:
1667 case TYPE_BIT_2:
1668 case TYPE_BIT_3:
1669 case TYPE_BIT_4:
1670 case TYPE_BIT_5:
1671 case TYPE_BIT_6:
1672 case TYPE_BIT_7:
1673 shift = d->type - TYPE_BIT_0;
1674 params[0] = (*(GLbitfield *) p >> shift) & 1;
1675 break;
1676 }
1677 }
1678
1679 void GLAPIENTRY
1680 _mesa_GetInteger64v(GLenum pname, GLint64 *params)
1681 {
1682 const struct value_desc *d;
1683 union value v;
1684 GLmatrix *m;
1685 int shift, i;
1686 void *p;
1687
1688 d = find_value("glGetInteger64v", pname, &p, &v);
1689 switch (d->type) {
1690 case TYPE_INVALID:
1691 break;
1692 case TYPE_CONST:
1693 params[0] = d->offset;
1694 break;
1695
1696 case TYPE_FLOAT_8:
1697 params[7] = IROUND64(((GLfloat *) p)[7]);
1698 params[6] = IROUND64(((GLfloat *) p)[6]);
1699 params[5] = IROUND64(((GLfloat *) p)[5]);
1700 params[4] = IROUND64(((GLfloat *) p)[4]);
1701 case TYPE_FLOAT_4:
1702 params[3] = IROUND64(((GLfloat *) p)[3]);
1703 case TYPE_FLOAT_3:
1704 params[2] = IROUND64(((GLfloat *) p)[2]);
1705 case TYPE_FLOAT_2:
1706 params[1] = IROUND64(((GLfloat *) p)[1]);
1707 case TYPE_FLOAT:
1708 params[0] = IROUND64(((GLfloat *) p)[0]);
1709 break;
1710
1711 case TYPE_FLOATN_4:
1712 params[3] = FLOAT_TO_INT(((GLfloat *) p)[3]);
1713 case TYPE_FLOATN_3:
1714 params[2] = FLOAT_TO_INT(((GLfloat *) p)[2]);
1715 case TYPE_FLOATN_2:
1716 params[1] = FLOAT_TO_INT(((GLfloat *) p)[1]);
1717 case TYPE_FLOATN:
1718 params[0] = FLOAT_TO_INT(((GLfloat *) p)[0]);
1719 break;
1720
1721 case TYPE_DOUBLEN_2:
1722 params[1] = FLOAT_TO_INT(((GLdouble *) p)[1]);
1723 case TYPE_DOUBLEN:
1724 params[0] = FLOAT_TO_INT(((GLdouble *) p)[0]);
1725 break;
1726
1727 case TYPE_INT_4:
1728 params[3] = ((GLint *) p)[3];
1729 case TYPE_INT_3:
1730 params[2] = ((GLint *) p)[2];
1731 case TYPE_INT_2:
1732 case TYPE_ENUM_2:
1733 params[1] = ((GLint *) p)[1];
1734 case TYPE_INT:
1735 case TYPE_ENUM:
1736 params[0] = ((GLint *) p)[0];
1737 break;
1738
1739 case TYPE_INT_N:
1740 for (i = 0; i < v.value_int_n.n; i++)
1741 params[i] = INT_TO_BOOLEAN(v.value_int_n.ints[i]);
1742 break;
1743
1744 case TYPE_INT64:
1745 params[0] = ((GLint64 *) p)[0];
1746 break;
1747
1748 case TYPE_BOOLEAN:
1749 params[0] = ((GLboolean*) p)[0];
1750 break;
1751
1752 case TYPE_MATRIX:
1753 m = *(GLmatrix **) p;
1754 for (i = 0; i < 16; i++)
1755 params[i] = FLOAT_TO_INT64(m->m[i]);
1756 break;
1757
1758 case TYPE_MATRIX_T:
1759 m = *(GLmatrix **) p;
1760 for (i = 0; i < 16; i++)
1761 params[i] = FLOAT_TO_INT64(m->m[transpose[i]]);
1762 break;
1763
1764 case TYPE_BIT_0:
1765 case TYPE_BIT_1:
1766 case TYPE_BIT_2:
1767 case TYPE_BIT_3:
1768 case TYPE_BIT_4:
1769 case TYPE_BIT_5:
1770 case TYPE_BIT_6:
1771 case TYPE_BIT_7:
1772 shift = d->type - TYPE_BIT_0;
1773 params[0] = (*(GLbitfield *) p >> shift) & 1;
1774 break;
1775 }
1776 }
1777
1778 void GLAPIENTRY
1779 _mesa_GetDoublev(GLenum pname, GLdouble *params)
1780 {
1781 const struct value_desc *d;
1782 union value v;
1783 GLmatrix *m;
1784 int shift, i;
1785 void *p;
1786
1787 d = find_value("glGetDoublev", pname, &p, &v);
1788 switch (d->type) {
1789 case TYPE_INVALID:
1790 break;
1791 case TYPE_CONST:
1792 params[0] = d->offset;
1793 break;
1794
1795 case TYPE_FLOAT_8:
1796 params[7] = ((GLfloat *) p)[7];
1797 params[6] = ((GLfloat *) p)[6];
1798 params[5] = ((GLfloat *) p)[5];
1799 params[4] = ((GLfloat *) p)[4];
1800 case TYPE_FLOAT_4:
1801 case TYPE_FLOATN_4:
1802 params[3] = ((GLfloat *) p)[3];
1803 case TYPE_FLOAT_3:
1804 case TYPE_FLOATN_3:
1805 params[2] = ((GLfloat *) p)[2];
1806 case TYPE_FLOAT_2:
1807 case TYPE_FLOATN_2:
1808 params[1] = ((GLfloat *) p)[1];
1809 case TYPE_FLOAT:
1810 case TYPE_FLOATN:
1811 params[0] = ((GLfloat *) p)[0];
1812 break;
1813
1814 case TYPE_DOUBLEN_2:
1815 params[1] = ((GLdouble *) p)[1];
1816 case TYPE_DOUBLEN:
1817 params[0] = ((GLdouble *) p)[0];
1818 break;
1819
1820 case TYPE_INT_4:
1821 params[3] = ((GLint *) p)[3];
1822 case TYPE_INT_3:
1823 params[2] = ((GLint *) p)[2];
1824 case TYPE_INT_2:
1825 case TYPE_ENUM_2:
1826 params[1] = ((GLint *) p)[1];
1827 case TYPE_INT:
1828 case TYPE_ENUM:
1829 params[0] = ((GLint *) p)[0];
1830 break;
1831
1832 case TYPE_INT_N:
1833 for (i = 0; i < v.value_int_n.n; i++)
1834 params[i] = v.value_int_n.ints[i];
1835 break;
1836
1837 case TYPE_INT64:
1838 params[0] = (GLdouble) (((GLint64 *) p)[0]);
1839 break;
1840
1841 case TYPE_BOOLEAN:
1842 params[0] = *(GLboolean*) p;
1843 break;
1844
1845 case TYPE_MATRIX:
1846 m = *(GLmatrix **) p;
1847 for (i = 0; i < 16; i++)
1848 params[i] = m->m[i];
1849 break;
1850
1851 case TYPE_MATRIX_T:
1852 m = *(GLmatrix **) p;
1853 for (i = 0; i < 16; i++)
1854 params[i] = m->m[transpose[i]];
1855 break;
1856
1857 case TYPE_BIT_0:
1858 case TYPE_BIT_1:
1859 case TYPE_BIT_2:
1860 case TYPE_BIT_3:
1861 case TYPE_BIT_4:
1862 case TYPE_BIT_5:
1863 case TYPE_BIT_6:
1864 case TYPE_BIT_7:
1865 shift = d->type - TYPE_BIT_0;
1866 params[0] = (*(GLbitfield *) p >> shift) & 1;
1867 break;
1868 }
1869 }
1870
1871 /**
1872 * Convert a GL texture binding enum such as GL_TEXTURE_BINDING_2D
1873 * into the corresponding Mesa texture target index.
1874 * \return TEXTURE_x_INDEX or -1 if binding is invalid
1875 */
1876 static int
1877 tex_binding_to_index(const struct gl_context *ctx, GLenum binding)
1878 {
1879 switch (binding) {
1880 case GL_TEXTURE_BINDING_1D:
1881 return _mesa_is_desktop_gl(ctx) ? TEXTURE_1D_INDEX : -1;
1882 case GL_TEXTURE_BINDING_2D:
1883 return TEXTURE_2D_INDEX;
1884 case GL_TEXTURE_BINDING_3D:
1885 return ctx->API != API_OPENGLES ? TEXTURE_3D_INDEX : -1;
1886 case GL_TEXTURE_BINDING_CUBE_MAP:
1887 return ctx->Extensions.ARB_texture_cube_map
1888 ? TEXTURE_CUBE_INDEX : -1;
1889 case GL_TEXTURE_BINDING_RECTANGLE:
1890 return _mesa_is_desktop_gl(ctx) && ctx->Extensions.NV_texture_rectangle
1891 ? TEXTURE_RECT_INDEX : -1;
1892 case GL_TEXTURE_BINDING_1D_ARRAY:
1893 return _mesa_is_desktop_gl(ctx) && ctx->Extensions.EXT_texture_array
1894 ? TEXTURE_1D_ARRAY_INDEX : -1;
1895 case GL_TEXTURE_BINDING_2D_ARRAY:
1896 return (_mesa_is_desktop_gl(ctx) && ctx->Extensions.EXT_texture_array)
1897 || _mesa_is_gles3(ctx)
1898 ? TEXTURE_2D_ARRAY_INDEX : -1;
1899 case GL_TEXTURE_BINDING_BUFFER:
1900 return (_mesa_has_ARB_texture_buffer_object(ctx) ||
1901 _mesa_has_OES_texture_buffer(ctx)) ?
1902 TEXTURE_BUFFER_INDEX : -1;
1903 case GL_TEXTURE_BINDING_CUBE_MAP_ARRAY:
1904 return _mesa_has_texture_cube_map_array(ctx)
1905 ? TEXTURE_CUBE_ARRAY_INDEX : -1;
1906 case GL_TEXTURE_BINDING_2D_MULTISAMPLE:
1907 return _mesa_is_desktop_gl(ctx) && ctx->Extensions.ARB_texture_multisample
1908 ? TEXTURE_2D_MULTISAMPLE_INDEX : -1;
1909 case GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY:
1910 return _mesa_is_desktop_gl(ctx) && ctx->Extensions.ARB_texture_multisample
1911 ? TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX : -1;
1912 default:
1913 return -1;
1914 }
1915 }
1916
1917 static enum value_type
1918 find_value_indexed(const char *func, GLenum pname, GLuint index, union value *v)
1919 {
1920 GET_CURRENT_CONTEXT(ctx);
1921
1922 switch (pname) {
1923
1924 case GL_BLEND:
1925 if (index >= ctx->Const.MaxDrawBuffers)
1926 goto invalid_value;
1927 if (!ctx->Extensions.EXT_draw_buffers2)
1928 goto invalid_enum;
1929 v->value_int = (ctx->Color.BlendEnabled >> index) & 1;
1930 return TYPE_INT;
1931
1932 case GL_BLEND_SRC:
1933 /* fall-through */
1934 case GL_BLEND_SRC_RGB:
1935 if (index >= ctx->Const.MaxDrawBuffers)
1936 goto invalid_value;
1937 if (!ctx->Extensions.ARB_draw_buffers_blend)
1938 goto invalid_enum;
1939 v->value_int = ctx->Color.Blend[index].SrcRGB;
1940 return TYPE_INT;
1941 case GL_BLEND_SRC_ALPHA:
1942 if (index >= ctx->Const.MaxDrawBuffers)
1943 goto invalid_value;
1944 if (!ctx->Extensions.ARB_draw_buffers_blend)
1945 goto invalid_enum;
1946 v->value_int = ctx->Color.Blend[index].SrcA;
1947 return TYPE_INT;
1948 case GL_BLEND_DST:
1949 /* fall-through */
1950 case GL_BLEND_DST_RGB:
1951 if (index >= ctx->Const.MaxDrawBuffers)
1952 goto invalid_value;
1953 if (!ctx->Extensions.ARB_draw_buffers_blend)
1954 goto invalid_enum;
1955 v->value_int = ctx->Color.Blend[index].DstRGB;
1956 return TYPE_INT;
1957 case GL_BLEND_DST_ALPHA:
1958 if (index >= ctx->Const.MaxDrawBuffers)
1959 goto invalid_value;
1960 if (!ctx->Extensions.ARB_draw_buffers_blend)
1961 goto invalid_enum;
1962 v->value_int = ctx->Color.Blend[index].DstA;
1963 return TYPE_INT;
1964 case GL_BLEND_EQUATION_RGB:
1965 if (index >= ctx->Const.MaxDrawBuffers)
1966 goto invalid_value;
1967 if (!ctx->Extensions.ARB_draw_buffers_blend)
1968 goto invalid_enum;
1969 v->value_int = ctx->Color.Blend[index].EquationRGB;
1970 return TYPE_INT;
1971 case GL_BLEND_EQUATION_ALPHA:
1972 if (index >= ctx->Const.MaxDrawBuffers)
1973 goto invalid_value;
1974 if (!ctx->Extensions.ARB_draw_buffers_blend)
1975 goto invalid_enum;
1976 v->value_int = ctx->Color.Blend[index].EquationA;
1977 return TYPE_INT;
1978
1979 case GL_COLOR_WRITEMASK:
1980 if (index >= ctx->Const.MaxDrawBuffers)
1981 goto invalid_value;
1982 if (!ctx->Extensions.EXT_draw_buffers2)
1983 goto invalid_enum;
1984 v->value_int_4[0] = ctx->Color.ColorMask[index][RCOMP] ? 1 : 0;
1985 v->value_int_4[1] = ctx->Color.ColorMask[index][GCOMP] ? 1 : 0;
1986 v->value_int_4[2] = ctx->Color.ColorMask[index][BCOMP] ? 1 : 0;
1987 v->value_int_4[3] = ctx->Color.ColorMask[index][ACOMP] ? 1 : 0;
1988 return TYPE_INT_4;
1989
1990 case GL_SCISSOR_BOX:
1991 if (index >= ctx->Const.MaxViewports)
1992 goto invalid_value;
1993 v->value_int_4[0] = ctx->Scissor.ScissorArray[index].X;
1994 v->value_int_4[1] = ctx->Scissor.ScissorArray[index].Y;
1995 v->value_int_4[2] = ctx->Scissor.ScissorArray[index].Width;
1996 v->value_int_4[3] = ctx->Scissor.ScissorArray[index].Height;
1997 return TYPE_INT_4;
1998
1999 case GL_WINDOW_RECTANGLE_EXT:
2000 if (!ctx->Extensions.EXT_window_rectangles)
2001 goto invalid_enum;
2002 if (index >= ctx->Const.MaxWindowRectangles)
2003 goto invalid_value;
2004 v->value_int_4[0] = ctx->Scissor.WindowRects[index].X;
2005 v->value_int_4[1] = ctx->Scissor.WindowRects[index].Y;
2006 v->value_int_4[2] = ctx->Scissor.WindowRects[index].Width;
2007 v->value_int_4[3] = ctx->Scissor.WindowRects[index].Height;
2008 return TYPE_INT_4;
2009
2010 case GL_VIEWPORT:
2011 if (index >= ctx->Const.MaxViewports)
2012 goto invalid_value;
2013 v->value_float_4[0] = ctx->ViewportArray[index].X;
2014 v->value_float_4[1] = ctx->ViewportArray[index].Y;
2015 v->value_float_4[2] = ctx->ViewportArray[index].Width;
2016 v->value_float_4[3] = ctx->ViewportArray[index].Height;
2017 return TYPE_FLOAT_4;
2018
2019 case GL_DEPTH_RANGE:
2020 if (index >= ctx->Const.MaxViewports)
2021 goto invalid_value;
2022 v->value_double_2[0] = ctx->ViewportArray[index].Near;
2023 v->value_double_2[1] = ctx->ViewportArray[index].Far;
2024 return TYPE_DOUBLEN_2;
2025
2026 case GL_TRANSFORM_FEEDBACK_BUFFER_START:
2027 if (index >= ctx->Const.MaxTransformFeedbackBuffers)
2028 goto invalid_value;
2029 if (!ctx->Extensions.EXT_transform_feedback)
2030 goto invalid_enum;
2031 v->value_int64 = ctx->TransformFeedback.CurrentObject->Offset[index];
2032 return TYPE_INT64;
2033
2034 case GL_TRANSFORM_FEEDBACK_BUFFER_SIZE:
2035 if (index >= ctx->Const.MaxTransformFeedbackBuffers)
2036 goto invalid_value;
2037 if (!ctx->Extensions.EXT_transform_feedback)
2038 goto invalid_enum;
2039 v->value_int64
2040 = ctx->TransformFeedback.CurrentObject->RequestedSize[index];
2041 return TYPE_INT64;
2042
2043 case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING:
2044 if (index >= ctx->Const.MaxTransformFeedbackBuffers)
2045 goto invalid_value;
2046 if (!ctx->Extensions.EXT_transform_feedback)
2047 goto invalid_enum;
2048 v->value_int = ctx->TransformFeedback.CurrentObject->BufferNames[index];
2049 return TYPE_INT;
2050
2051 case GL_UNIFORM_BUFFER_BINDING:
2052 if (index >= ctx->Const.MaxUniformBufferBindings)
2053 goto invalid_value;
2054 if (!ctx->Extensions.ARB_uniform_buffer_object)
2055 goto invalid_enum;
2056 v->value_int = ctx->UniformBufferBindings[index].BufferObject->Name;
2057 return TYPE_INT;
2058
2059 case GL_UNIFORM_BUFFER_START:
2060 if (index >= ctx->Const.MaxUniformBufferBindings)
2061 goto invalid_value;
2062 if (!ctx->Extensions.ARB_uniform_buffer_object)
2063 goto invalid_enum;
2064 v->value_int = ctx->UniformBufferBindings[index].Offset < 0 ? 0 :
2065 ctx->UniformBufferBindings[index].Offset;
2066 return TYPE_INT;
2067
2068 case GL_UNIFORM_BUFFER_SIZE:
2069 if (index >= ctx->Const.MaxUniformBufferBindings)
2070 goto invalid_value;
2071 if (!ctx->Extensions.ARB_uniform_buffer_object)
2072 goto invalid_enum;
2073 v->value_int = ctx->UniformBufferBindings[index].Size < 0 ? 0 :
2074 ctx->UniformBufferBindings[index].Size;
2075 return TYPE_INT;
2076
2077 /* ARB_shader_storage_buffer_object */
2078 case GL_SHADER_STORAGE_BUFFER_BINDING:
2079 if (!ctx->Extensions.ARB_shader_storage_buffer_object)
2080 goto invalid_enum;
2081 if (index >= ctx->Const.MaxShaderStorageBufferBindings)
2082 goto invalid_value;
2083 v->value_int = ctx->ShaderStorageBufferBindings[index].BufferObject->Name;
2084 return TYPE_INT;
2085
2086 case GL_SHADER_STORAGE_BUFFER_START:
2087 if (!ctx->Extensions.ARB_shader_storage_buffer_object)
2088 goto invalid_enum;
2089 if (index >= ctx->Const.MaxShaderStorageBufferBindings)
2090 goto invalid_value;
2091 v->value_int = ctx->ShaderStorageBufferBindings[index].Offset < 0 ? 0 :
2092 ctx->ShaderStorageBufferBindings[index].Offset;
2093 return TYPE_INT;
2094
2095 case GL_SHADER_STORAGE_BUFFER_SIZE:
2096 if (!ctx->Extensions.ARB_shader_storage_buffer_object)
2097 goto invalid_enum;
2098 if (index >= ctx->Const.MaxShaderStorageBufferBindings)
2099 goto invalid_value;
2100 v->value_int = ctx->ShaderStorageBufferBindings[index].Size < 0 ? 0 :
2101 ctx->ShaderStorageBufferBindings[index].Size;
2102 return TYPE_INT;
2103
2104 /* ARB_texture_multisample / GL3.2 */
2105 case GL_SAMPLE_MASK_VALUE:
2106 if (index != 0)
2107 goto invalid_value;
2108 if (!ctx->Extensions.ARB_texture_multisample)
2109 goto invalid_enum;
2110 v->value_int = ctx->Multisample.SampleMaskValue;
2111 return TYPE_INT;
2112
2113 case GL_ATOMIC_COUNTER_BUFFER_BINDING:
2114 if (!ctx->Extensions.ARB_shader_atomic_counters)
2115 goto invalid_enum;
2116 if (index >= ctx->Const.MaxAtomicBufferBindings)
2117 goto invalid_value;
2118 v->value_int = ctx->AtomicBufferBindings[index].BufferObject->Name;
2119 return TYPE_INT;
2120
2121 case GL_ATOMIC_COUNTER_BUFFER_START:
2122 if (!ctx->Extensions.ARB_shader_atomic_counters)
2123 goto invalid_enum;
2124 if (index >= ctx->Const.MaxAtomicBufferBindings)
2125 goto invalid_value;
2126 v->value_int64 = ctx->AtomicBufferBindings[index].Offset;
2127 return TYPE_INT64;
2128
2129 case GL_ATOMIC_COUNTER_BUFFER_SIZE:
2130 if (!ctx->Extensions.ARB_shader_atomic_counters)
2131 goto invalid_enum;
2132 if (index >= ctx->Const.MaxAtomicBufferBindings)
2133 goto invalid_value;
2134 v->value_int64 = ctx->AtomicBufferBindings[index].Size;
2135 return TYPE_INT64;
2136
2137 case GL_VERTEX_BINDING_DIVISOR:
2138 if ((!_mesa_is_desktop_gl(ctx) || !ctx->Extensions.ARB_instanced_arrays) &&
2139 !_mesa_is_gles31(ctx))
2140 goto invalid_enum;
2141 if (index >= ctx->Const.Program[MESA_SHADER_VERTEX].MaxAttribs)
2142 goto invalid_value;
2143 v->value_int = ctx->Array.VAO->VertexBinding[VERT_ATTRIB_GENERIC(index)].InstanceDivisor;
2144 return TYPE_INT;
2145
2146 case GL_VERTEX_BINDING_OFFSET:
2147 if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles31(ctx))
2148 goto invalid_enum;
2149 if (index >= ctx->Const.Program[MESA_SHADER_VERTEX].MaxAttribs)
2150 goto invalid_value;
2151 v->value_int = ctx->Array.VAO->VertexBinding[VERT_ATTRIB_GENERIC(index)].Offset;
2152 return TYPE_INT;
2153
2154 case GL_VERTEX_BINDING_STRIDE:
2155 if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles31(ctx))
2156 goto invalid_enum;
2157 if (index >= ctx->Const.Program[MESA_SHADER_VERTEX].MaxAttribs)
2158 goto invalid_value;
2159 v->value_int = ctx->Array.VAO->VertexBinding[VERT_ATTRIB_GENERIC(index)].Stride;
2160 return TYPE_INT;
2161
2162 case GL_VERTEX_BINDING_BUFFER:
2163 if (ctx->API == API_OPENGLES2 && ctx->Version < 31)
2164 goto invalid_enum;
2165 if (index >= ctx->Const.Program[MESA_SHADER_VERTEX].MaxAttribs)
2166 goto invalid_value;
2167 v->value_int = ctx->Array.VAO->VertexBinding[VERT_ATTRIB_GENERIC(index)].BufferObj->Name;
2168 return TYPE_INT;
2169
2170 /* ARB_shader_image_load_store */
2171 case GL_IMAGE_BINDING_NAME: {
2172 struct gl_texture_object *t;
2173
2174 if (!ctx->Extensions.ARB_shader_image_load_store)
2175 goto invalid_enum;
2176 if (index >= ctx->Const.MaxImageUnits)
2177 goto invalid_value;
2178
2179 t = ctx->ImageUnits[index].TexObj;
2180 v->value_int = (t ? t->Name : 0);
2181 return TYPE_INT;
2182 }
2183
2184 case GL_IMAGE_BINDING_LEVEL:
2185 if (!ctx->Extensions.ARB_shader_image_load_store)
2186 goto invalid_enum;
2187 if (index >= ctx->Const.MaxImageUnits)
2188 goto invalid_value;
2189
2190 v->value_int = ctx->ImageUnits[index].Level;
2191 return TYPE_INT;
2192
2193 case GL_IMAGE_BINDING_LAYERED:
2194 if (!ctx->Extensions.ARB_shader_image_load_store)
2195 goto invalid_enum;
2196 if (index >= ctx->Const.MaxImageUnits)
2197 goto invalid_value;
2198
2199 v->value_int = ctx->ImageUnits[index].Layered;
2200 return TYPE_INT;
2201
2202 case GL_IMAGE_BINDING_LAYER:
2203 if (!ctx->Extensions.ARB_shader_image_load_store)
2204 goto invalid_enum;
2205 if (index >= ctx->Const.MaxImageUnits)
2206 goto invalid_value;
2207
2208 v->value_int = ctx->ImageUnits[index].Layer;
2209 return TYPE_INT;
2210
2211 case GL_IMAGE_BINDING_ACCESS:
2212 if (!ctx->Extensions.ARB_shader_image_load_store)
2213 goto invalid_enum;
2214 if (index >= ctx->Const.MaxImageUnits)
2215 goto invalid_value;
2216
2217 v->value_int = ctx->ImageUnits[index].Access;
2218 return TYPE_INT;
2219
2220 case GL_IMAGE_BINDING_FORMAT:
2221 if (!ctx->Extensions.ARB_shader_image_load_store)
2222 goto invalid_enum;
2223 if (index >= ctx->Const.MaxImageUnits)
2224 goto invalid_value;
2225
2226 v->value_int = ctx->ImageUnits[index].Format;
2227 return TYPE_INT;
2228
2229 /* ARB_direct_state_access */
2230 case GL_TEXTURE_BINDING_1D:
2231 case GL_TEXTURE_BINDING_1D_ARRAY:
2232 case GL_TEXTURE_BINDING_2D:
2233 case GL_TEXTURE_BINDING_2D_ARRAY:
2234 case GL_TEXTURE_BINDING_2D_MULTISAMPLE:
2235 case GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY:
2236 case GL_TEXTURE_BINDING_3D:
2237 case GL_TEXTURE_BINDING_BUFFER:
2238 case GL_TEXTURE_BINDING_CUBE_MAP:
2239 case GL_TEXTURE_BINDING_CUBE_MAP_ARRAY:
2240 case GL_TEXTURE_BINDING_RECTANGLE: {
2241 int target;
2242
2243 if (ctx->API != API_OPENGL_CORE)
2244 goto invalid_enum;
2245 target = tex_binding_to_index(ctx, pname);
2246 if (target < 0)
2247 goto invalid_enum;
2248 if (index >= _mesa_max_tex_unit(ctx))
2249 goto invalid_value;
2250
2251 v->value_int = ctx->Texture.Unit[index].CurrentTex[target]->Name;
2252 return TYPE_INT;
2253 }
2254
2255 case GL_SAMPLER_BINDING: {
2256 struct gl_sampler_object *samp;
2257
2258 if (ctx->API != API_OPENGL_CORE)
2259 goto invalid_enum;
2260 if (index >= _mesa_max_tex_unit(ctx))
2261 goto invalid_value;
2262
2263 samp = ctx->Texture.Unit[index].Sampler;
2264 v->value_int = samp ? samp->Name : 0;
2265 return TYPE_INT;
2266 }
2267
2268 case GL_MAX_COMPUTE_WORK_GROUP_COUNT:
2269 if (!_mesa_has_compute_shaders(ctx))
2270 goto invalid_enum;
2271 if (index >= 3)
2272 goto invalid_value;
2273 v->value_int = ctx->Const.MaxComputeWorkGroupCount[index];
2274 return TYPE_INT;
2275
2276 case GL_MAX_COMPUTE_WORK_GROUP_SIZE:
2277 if (!_mesa_has_compute_shaders(ctx))
2278 goto invalid_enum;
2279 if (index >= 3)
2280 goto invalid_value;
2281 v->value_int = ctx->Const.MaxComputeWorkGroupSize[index];
2282 return TYPE_INT;
2283 }
2284
2285 invalid_enum:
2286 _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func,
2287 _mesa_enum_to_string(pname));
2288 return TYPE_INVALID;
2289 invalid_value:
2290 _mesa_error(ctx, GL_INVALID_VALUE, "%s(pname=%s)", func,
2291 _mesa_enum_to_string(pname));
2292 return TYPE_INVALID;
2293 }
2294
2295 void GLAPIENTRY
2296 _mesa_GetBooleani_v( GLenum pname, GLuint index, GLboolean *params )
2297 {
2298 union value v;
2299 enum value_type type =
2300 find_value_indexed("glGetBooleani_v", pname, index, &v);
2301
2302 switch (type) {
2303 case TYPE_INT:
2304 params[0] = INT_TO_BOOLEAN(v.value_int);
2305 break;
2306 case TYPE_INT_4:
2307 params[0] = INT_TO_BOOLEAN(v.value_int_4[0]);
2308 params[1] = INT_TO_BOOLEAN(v.value_int_4[1]);
2309 params[2] = INT_TO_BOOLEAN(v.value_int_4[2]);
2310 params[3] = INT_TO_BOOLEAN(v.value_int_4[3]);
2311 break;
2312 case TYPE_INT64:
2313 params[0] = INT64_TO_BOOLEAN(v.value_int64);
2314 break;
2315 default:
2316 ; /* nothing - GL error was recorded */
2317 }
2318 }
2319
2320 void GLAPIENTRY
2321 _mesa_GetIntegeri_v( GLenum pname, GLuint index, GLint *params )
2322 {
2323 union value v;
2324 enum value_type type =
2325 find_value_indexed("glGetIntegeri_v", pname, index, &v);
2326
2327 switch (type) {
2328 case TYPE_FLOAT_4:
2329 case TYPE_FLOATN_4:
2330 params[3] = IROUND(v.value_float_4[3]);
2331 case TYPE_FLOAT_3:
2332 case TYPE_FLOATN_3:
2333 params[2] = IROUND(v.value_float_4[2]);
2334 case TYPE_FLOAT_2:
2335 case TYPE_FLOATN_2:
2336 params[1] = IROUND(v.value_float_4[1]);
2337 case TYPE_FLOAT:
2338 case TYPE_FLOATN:
2339 params[0] = IROUND(v.value_float_4[0]);
2340 break;
2341
2342 case TYPE_DOUBLEN_2:
2343 params[1] = IROUND(v.value_double_2[1]);
2344 case TYPE_DOUBLEN:
2345 params[0] = IROUND(v.value_double_2[0]);
2346 break;
2347
2348 case TYPE_INT:
2349 params[0] = v.value_int;
2350 break;
2351 case TYPE_INT_4:
2352 params[0] = v.value_int_4[0];
2353 params[1] = v.value_int_4[1];
2354 params[2] = v.value_int_4[2];
2355 params[3] = v.value_int_4[3];
2356 break;
2357 case TYPE_INT64:
2358 params[0] = INT64_TO_INT(v.value_int64);
2359 break;
2360 default:
2361 ; /* nothing - GL error was recorded */
2362 }
2363 }
2364
2365 void GLAPIENTRY
2366 _mesa_GetInteger64i_v( GLenum pname, GLuint index, GLint64 *params )
2367 {
2368 union value v;
2369 enum value_type type =
2370 find_value_indexed("glGetInteger64i_v", pname, index, &v);
2371
2372 switch (type) {
2373 case TYPE_INT:
2374 params[0] = v.value_int;
2375 break;
2376 case TYPE_INT_4:
2377 params[0] = v.value_int_4[0];
2378 params[1] = v.value_int_4[1];
2379 params[2] = v.value_int_4[2];
2380 params[3] = v.value_int_4[3];
2381 break;
2382 case TYPE_INT64:
2383 params[0] = v.value_int64;
2384 break;
2385 default:
2386 ; /* nothing - GL error was recorded */
2387 }
2388 }
2389
2390 void GLAPIENTRY
2391 _mesa_GetFloati_v(GLenum pname, GLuint index, GLfloat *params)
2392 {
2393 int i;
2394 GLmatrix *m;
2395 union value v;
2396 enum value_type type =
2397 find_value_indexed("glGetFloati_v", pname, index, &v);
2398
2399 switch (type) {
2400 case TYPE_FLOAT_4:
2401 case TYPE_FLOATN_4:
2402 params[3] = v.value_float_4[3];
2403 case TYPE_FLOAT_3:
2404 case TYPE_FLOATN_3:
2405 params[2] = v.value_float_4[2];
2406 case TYPE_FLOAT_2:
2407 case TYPE_FLOATN_2:
2408 params[1] = v.value_float_4[1];
2409 case TYPE_FLOAT:
2410 case TYPE_FLOATN:
2411 params[0] = v.value_float_4[0];
2412 break;
2413
2414 case TYPE_DOUBLEN_2:
2415 params[1] = (GLfloat) v.value_double_2[1];
2416 case TYPE_DOUBLEN:
2417 params[0] = (GLfloat) v.value_double_2[0];
2418 break;
2419
2420 case TYPE_INT_4:
2421 params[3] = (GLfloat) v.value_int_4[3];
2422 case TYPE_INT_3:
2423 params[2] = (GLfloat) v.value_int_4[2];
2424 case TYPE_INT_2:
2425 case TYPE_ENUM_2:
2426 params[1] = (GLfloat) v.value_int_4[1];
2427 case TYPE_INT:
2428 case TYPE_ENUM:
2429 params[0] = (GLfloat) v.value_int_4[0];
2430 break;
2431
2432 case TYPE_INT_N:
2433 for (i = 0; i < v.value_int_n.n; i++)
2434 params[i] = INT_TO_FLOAT(v.value_int_n.ints[i]);
2435 break;
2436
2437 case TYPE_INT64:
2438 params[0] = (GLfloat) v.value_int64;
2439 break;
2440
2441 case TYPE_BOOLEAN:
2442 params[0] = BOOLEAN_TO_FLOAT(v.value_bool);
2443 break;
2444
2445 case TYPE_MATRIX:
2446 m = *(GLmatrix **) &v;
2447 for (i = 0; i < 16; i++)
2448 params[i] = m->m[i];
2449 break;
2450
2451 case TYPE_MATRIX_T:
2452 m = *(GLmatrix **) &v;
2453 for (i = 0; i < 16; i++)
2454 params[i] = m->m[transpose[i]];
2455 break;
2456
2457 default:
2458 ;
2459 }
2460 }
2461
2462 void GLAPIENTRY
2463 _mesa_GetDoublei_v(GLenum pname, GLuint index, GLdouble *params)
2464 {
2465 int i;
2466 GLmatrix *m;
2467 union value v;
2468 enum value_type type =
2469 find_value_indexed("glGetDoublei_v", pname, index, &v);
2470
2471 switch (type) {
2472 case TYPE_FLOAT_4:
2473 case TYPE_FLOATN_4:
2474 params[3] = (GLdouble) v.value_float_4[3];
2475 case TYPE_FLOAT_3:
2476 case TYPE_FLOATN_3:
2477 params[2] = (GLdouble) v.value_float_4[2];
2478 case TYPE_FLOAT_2:
2479 case TYPE_FLOATN_2:
2480 params[1] = (GLdouble) v.value_float_4[1];
2481 case TYPE_FLOAT:
2482 case TYPE_FLOATN:
2483 params[0] = (GLdouble) v.value_float_4[0];
2484 break;
2485
2486 case TYPE_DOUBLEN_2:
2487 params[1] = v.value_double_2[1];
2488 case TYPE_DOUBLEN:
2489 params[0] = v.value_double_2[0];
2490 break;
2491
2492 case TYPE_INT_4:
2493 params[3] = (GLdouble) v.value_int_4[3];
2494 case TYPE_INT_3:
2495 params[2] = (GLdouble) v.value_int_4[2];
2496 case TYPE_INT_2:
2497 case TYPE_ENUM_2:
2498 params[1] = (GLdouble) v.value_int_4[1];
2499 case TYPE_INT:
2500 case TYPE_ENUM:
2501 params[0] = (GLdouble) v.value_int_4[0];
2502 break;
2503
2504 case TYPE_INT_N:
2505 for (i = 0; i < v.value_int_n.n; i++)
2506 params[i] = (GLdouble) INT_TO_FLOAT(v.value_int_n.ints[i]);
2507 break;
2508
2509 case TYPE_INT64:
2510 params[0] = (GLdouble) v.value_int64;
2511 break;
2512
2513 case TYPE_BOOLEAN:
2514 params[0] = (GLdouble) BOOLEAN_TO_FLOAT(v.value_bool);
2515 break;
2516
2517 case TYPE_MATRIX:
2518 m = *(GLmatrix **) &v;
2519 for (i = 0; i < 16; i++)
2520 params[i] = (GLdouble) m->m[i];
2521 break;
2522
2523 case TYPE_MATRIX_T:
2524 m = *(GLmatrix **) &v;
2525 for (i = 0; i < 16; i++)
2526 params[i] = (GLdouble) m->m[transpose[i]];
2527 break;
2528
2529 default:
2530 ;
2531 }
2532 }
2533
2534 void GLAPIENTRY
2535 _mesa_GetFixedv(GLenum pname, GLfixed *params)
2536 {
2537 const struct value_desc *d;
2538 union value v;
2539 GLmatrix *m;
2540 int shift, i;
2541 void *p;
2542
2543 d = find_value("glGetDoublev", pname, &p, &v);
2544 switch (d->type) {
2545 case TYPE_INVALID:
2546 break;
2547 case TYPE_CONST:
2548 params[0] = INT_TO_FIXED(d->offset);
2549 break;
2550
2551 case TYPE_FLOAT_4:
2552 case TYPE_FLOATN_4:
2553 params[3] = FLOAT_TO_FIXED(((GLfloat *) p)[3]);
2554 case TYPE_FLOAT_3:
2555 case TYPE_FLOATN_3:
2556 params[2] = FLOAT_TO_FIXED(((GLfloat *) p)[2]);
2557 case TYPE_FLOAT_2:
2558 case TYPE_FLOATN_2:
2559 params[1] = FLOAT_TO_FIXED(((GLfloat *) p)[1]);
2560 case TYPE_FLOAT:
2561 case TYPE_FLOATN:
2562 params[0] = FLOAT_TO_FIXED(((GLfloat *) p)[0]);
2563 break;
2564
2565 case TYPE_DOUBLEN_2:
2566 params[1] = FLOAT_TO_FIXED(((GLdouble *) p)[1]);
2567 case TYPE_DOUBLEN:
2568 params[0] = FLOAT_TO_FIXED(((GLdouble *) p)[0]);
2569 break;
2570
2571 case TYPE_INT_4:
2572 params[3] = INT_TO_FIXED(((GLint *) p)[3]);
2573 case TYPE_INT_3:
2574 params[2] = INT_TO_FIXED(((GLint *) p)[2]);
2575 case TYPE_INT_2:
2576 case TYPE_ENUM_2:
2577 params[1] = INT_TO_FIXED(((GLint *) p)[1]);
2578 case TYPE_INT:
2579 case TYPE_ENUM:
2580 params[0] = INT_TO_FIXED(((GLint *) p)[0]);
2581 break;
2582
2583 case TYPE_INT_N:
2584 for (i = 0; i < v.value_int_n.n; i++)
2585 params[i] = INT_TO_FIXED(v.value_int_n.ints[i]);
2586 break;
2587
2588 case TYPE_INT64:
2589 params[0] = ((GLint64 *) p)[0];
2590 break;
2591
2592 case TYPE_BOOLEAN:
2593 params[0] = BOOLEAN_TO_FIXED(((GLboolean*) p)[0]);
2594 break;
2595
2596 case TYPE_MATRIX:
2597 m = *(GLmatrix **) p;
2598 for (i = 0; i < 16; i++)
2599 params[i] = FLOAT_TO_FIXED(m->m[i]);
2600 break;
2601
2602 case TYPE_MATRIX_T:
2603 m = *(GLmatrix **) p;
2604 for (i = 0; i < 16; i++)
2605 params[i] = FLOAT_TO_FIXED(m->m[transpose[i]]);
2606 break;
2607
2608 case TYPE_BIT_0:
2609 case TYPE_BIT_1:
2610 case TYPE_BIT_2:
2611 case TYPE_BIT_3:
2612 case TYPE_BIT_4:
2613 case TYPE_BIT_5:
2614 case TYPE_BIT_6:
2615 case TYPE_BIT_7:
2616 shift = d->type - TYPE_BIT_0;
2617 params[0] = BOOLEAN_TO_FIXED((*(GLbitfield *) p >> shift) & 1);
2618 break;
2619 }
2620 }