2 * Copyright (C) 2010 Brian Paul All Rights Reserved.
3 * Copyright (C) 2010 Intel Corporation
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:
12 * The above copyright notice and this permission notice shall be included
13 * in all copies or substantial portions of the Software.
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.
23 * Author: Kristian Høgsberg <krh@bitplanet.net>
29 #include "debug_output.h"
33 #include "extensions.h"
38 #include "texcompress.h"
40 #include "framebuffer.h"
41 #include "samplerobj.h"
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.
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
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.
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) )
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) )
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))) )
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 )
88 #define ENUM_TO_INT64(E) ( (GLint64) (E) )
89 #define ENUM_TO_FIXED(E) (E)
130 enum value_location
{
151 EXTRA_NEW_FRAG_CLAMP
,
152 EXTRA_VALID_DRAW_BUFFER
,
153 EXTRA_VALID_TEXTURE_UNIT
,
154 EXTRA_VALID_CLIP_DISTANCE
,
158 EXTRA_EXT_ATOMICS_GS
,
159 EXTRA_EXT_SHADER_IMAGE_GS
,
160 EXTRA_EXT_ATOMICS_TESS
,
161 EXTRA_EXT_SHADER_IMAGE_TESS
,
163 EXTRA_EXT_FB_NO_ATTACH_GS
,
167 #define NO_EXTRA NULL
172 GLubyte location
; /**< enum value_location */
173 GLubyte type
; /**< enum value_type */
180 GLfloat value_float_4
[4];
181 GLdouble value_double_2
[2];
182 GLmatrix
*value_matrix
;
184 GLint value_int_4
[4];
188 /* Sigh, see GL_COMPRESSED_TEXTURE_FORMATS_ARB handling */
192 GLboolean value_bool
;
195 #define BUFFER_FIELD(field, type) \
196 LOC_BUFFER, type, offsetof(struct gl_framebuffer, field)
197 #define CONTEXT_FIELD(field, type) \
198 LOC_CONTEXT, type, offsetof(struct gl_context, field)
199 #define ARRAY_FIELD(field, type) \
200 LOC_ARRAY, type, offsetof(struct gl_vertex_array_object, field)
201 #undef CONST /* already defined through windows.h */
202 #define CONST(value) \
203 LOC_CONTEXT, TYPE_CONST, value
205 #define BUFFER_INT(field) BUFFER_FIELD(field, TYPE_INT)
206 #define BUFFER_ENUM(field) BUFFER_FIELD(field, TYPE_ENUM)
207 #define BUFFER_BOOL(field) BUFFER_FIELD(field, TYPE_BOOLEAN)
209 #define CONTEXT_INT(field) CONTEXT_FIELD(field, TYPE_INT)
210 #define CONTEXT_INT2(field) CONTEXT_FIELD(field, TYPE_INT_2)
211 #define CONTEXT_INT64(field) CONTEXT_FIELD(field, TYPE_INT64)
212 #define CONTEXT_UINT(field) CONTEXT_FIELD(field, TYPE_UINT)
213 #define CONTEXT_ENUM(field) CONTEXT_FIELD(field, TYPE_ENUM)
214 #define CONTEXT_ENUM2(field) CONTEXT_FIELD(field, TYPE_ENUM_2)
215 #define CONTEXT_BOOL(field) CONTEXT_FIELD(field, TYPE_BOOLEAN)
216 #define CONTEXT_BIT0(field) CONTEXT_FIELD(field, TYPE_BIT_0)
217 #define CONTEXT_BIT1(field) CONTEXT_FIELD(field, TYPE_BIT_1)
218 #define CONTEXT_BIT2(field) CONTEXT_FIELD(field, TYPE_BIT_2)
219 #define CONTEXT_BIT3(field) CONTEXT_FIELD(field, TYPE_BIT_3)
220 #define CONTEXT_BIT4(field) CONTEXT_FIELD(field, TYPE_BIT_4)
221 #define CONTEXT_BIT5(field) CONTEXT_FIELD(field, TYPE_BIT_5)
222 #define CONTEXT_BIT6(field) CONTEXT_FIELD(field, TYPE_BIT_6)
223 #define CONTEXT_BIT7(field) CONTEXT_FIELD(field, TYPE_BIT_7)
224 #define CONTEXT_FLOAT(field) CONTEXT_FIELD(field, TYPE_FLOAT)
225 #define CONTEXT_FLOAT2(field) CONTEXT_FIELD(field, TYPE_FLOAT_2)
226 #define CONTEXT_FLOAT3(field) CONTEXT_FIELD(field, TYPE_FLOAT_3)
227 #define CONTEXT_FLOAT4(field) CONTEXT_FIELD(field, TYPE_FLOAT_4)
228 #define CONTEXT_FLOAT8(field) CONTEXT_FIELD(field, TYPE_FLOAT_8)
229 #define CONTEXT_MATRIX(field) CONTEXT_FIELD(field, TYPE_MATRIX)
230 #define CONTEXT_MATRIX_T(field) CONTEXT_FIELD(field, TYPE_MATRIX_T)
232 #define ARRAY_INT(field) ARRAY_FIELD(field, TYPE_INT)
233 #define ARRAY_ENUM(field) ARRAY_FIELD(field, TYPE_ENUM)
234 #define ARRAY_BOOL(field) ARRAY_FIELD(field, TYPE_BOOLEAN)
237 offsetof(struct gl_extensions, f)
239 #define EXTRA_EXT(e) \
240 static const int extra_##e[] = { \
244 #define EXTRA_EXT2(e1, e2) \
245 static const int extra_##e1##_##e2[] = { \
246 EXT(e1), EXT(e2), EXTRA_END \
249 /* The 'extra' mechanism is a way to specify extra checks (such as
250 * extensions or specific gl versions) or actions (flush current, new
251 * buffers) that we need to do before looking up an enum. We need to
252 * declare them all up front so we can refer to them in the value_desc
255 * Each EXTRA_ will be executed. For EXTRA_* enums of extensions and API
256 * versions, listing multiple ones in an array means an error will be thrown
257 * only if none of them are available. If you need to check for "AND"
258 * behavior, you would need to make a custom EXTRA_ enum.
261 static const int extra_new_buffers
[] = {
266 static const int extra_new_frag_clamp
[] = {
267 EXTRA_NEW_FRAG_CLAMP
,
271 static const int extra_valid_draw_buffer
[] = {
272 EXTRA_VALID_DRAW_BUFFER
,
276 static const int extra_valid_texture_unit
[] = {
277 EXTRA_VALID_TEXTURE_UNIT
,
281 static const int extra_valid_clip_distance
[] = {
282 EXTRA_VALID_CLIP_DISTANCE
,
286 static const int extra_flush_current_valid_texture_unit
[] = {
288 EXTRA_VALID_TEXTURE_UNIT
,
292 static const int extra_flush_current
[] = {
297 static const int extra_EXT_texture_integer_and_new_buffers
[] = {
298 EXT(EXT_texture_integer
),
303 static const int extra_GLSL_130_es3
[] = {
309 static const int extra_texture_buffer_object
[] = {
312 EXT(ARB_texture_buffer_object
),
316 static const int extra_ARB_transform_feedback2_api_es3
[] = {
317 EXT(ARB_transform_feedback2
),
322 static const int extra_ARB_uniform_buffer_object_and_geometry_shader
[] = {
327 static const int extra_ARB_ES2_compatibility_api_es2
[] = {
328 EXT(ARB_ES2_compatibility
),
333 static const int extra_ARB_ES3_compatibility_api_es3
[] = {
334 EXT(ARB_ES3_compatibility
),
339 static const int extra_EXT_framebuffer_sRGB_and_new_buffers
[] = {
340 EXT(EXT_framebuffer_sRGB
),
345 static const int extra_EXT_packed_float
[] = {
346 EXT(EXT_packed_float
),
351 static const int extra_EXT_texture_array_es3
[] = {
352 EXT(EXT_texture_array
),
357 static const int extra_ARB_shader_atomic_counters_and_geometry_shader
[] = {
358 EXTRA_EXT_ATOMICS_GS
,
362 static const int extra_ARB_shader_image_load_store_and_geometry_shader
[] = {
363 EXTRA_EXT_SHADER_IMAGE_GS
,
367 static const int extra_ARB_shader_atomic_counters_and_tessellation
[] = {
368 EXTRA_EXT_ATOMICS_TESS
,
372 static const int extra_ARB_shader_image_load_store_and_tessellation
[] = {
373 EXTRA_EXT_SHADER_IMAGE_TESS
,
377 /* HACK: remove when ARB_compute_shader is actually supported */
378 static const int extra_ARB_compute_shader_es31
[] = {
379 EXT(ARB_compute_shader
),
384 static const int extra_ARB_shader_storage_buffer_object_es31
[] = {
385 EXT(ARB_shader_storage_buffer_object
),
390 static const int extra_ARB_shader_storage_buffer_object_and_geometry_shader
[] = {
395 static const int extra_ARB_shader_image_load_store_shader_storage_buffer_object_es31
[] = {
396 EXT(ARB_shader_image_load_store
),
397 EXT(ARB_shader_storage_buffer_object
),
402 static const int extra_ARB_framebuffer_no_attachments_and_geometry_shader
[] = {
403 EXTRA_EXT_FB_NO_ATTACH_GS
,
407 static const int extra_ARB_viewport_array_or_oes_geometry_shader
[] = {
408 EXT(ARB_viewport_array
),
413 static const int extra_ARB_viewport_array_or_oes_viewport_array
[] = {
414 EXT(ARB_viewport_array
),
415 EXT(OES_viewport_array
),
419 static const int extra_ARB_gpu_shader5_or_oes_geometry_shader
[] = {
420 EXT(ARB_gpu_shader5
),
425 static const int extra_ARB_gpu_shader5_or_OES_sample_variables
[] = {
426 EXT(ARB_gpu_shader5
),
427 EXT(OES_sample_variables
),
431 static const int extra_ES32
[] = {
432 EXT(ARB_ES3_2_compatibility
),
437 static const int extra_KHR_robustness_or_GL
[] = {
444 static const int extra_INTEL_conservative_rasterization
[] = {
445 EXT(INTEL_conservative_rasterization
),
449 EXTRA_EXT(ARB_texture_cube_map
);
450 EXTRA_EXT(EXT_texture_array
);
451 EXTRA_EXT(NV_fog_distance
);
452 EXTRA_EXT(EXT_texture_filter_anisotropic
);
453 EXTRA_EXT(NV_point_sprite
);
454 EXTRA_EXT(NV_texture_rectangle
);
455 EXTRA_EXT(EXT_stencil_two_side
);
456 EXTRA_EXT(EXT_depth_bounds_test
);
457 EXTRA_EXT(ARB_depth_clamp
);
458 EXTRA_EXT(ATI_fragment_shader
);
459 EXTRA_EXT(EXT_provoking_vertex
);
460 EXTRA_EXT(ARB_fragment_shader
);
461 EXTRA_EXT(ARB_fragment_program
);
462 EXTRA_EXT2(ARB_framebuffer_object
, EXT_framebuffer_multisample
);
463 EXTRA_EXT(ARB_seamless_cube_map
);
465 EXTRA_EXT(ARB_vertex_shader
);
466 EXTRA_EXT(EXT_transform_feedback
);
467 EXTRA_EXT(ARB_transform_feedback3
);
468 EXTRA_EXT(EXT_pixel_buffer_object
);
469 EXTRA_EXT(ARB_vertex_program
);
470 EXTRA_EXT2(NV_point_sprite
, ARB_point_sprite
);
471 EXTRA_EXT2(ARB_vertex_program
, ARB_fragment_program
);
472 EXTRA_EXT(ARB_color_buffer_float
);
473 EXTRA_EXT(EXT_framebuffer_sRGB
);
474 EXTRA_EXT(OES_EGL_image_external
);
475 EXTRA_EXT(ARB_blend_func_extended
);
476 EXTRA_EXT(ARB_uniform_buffer_object
);
477 EXTRA_EXT(ARB_timer_query
);
478 EXTRA_EXT2(ARB_texture_cube_map_array
, OES_texture_cube_map_array
);
479 EXTRA_EXT(ARB_texture_buffer_range
);
480 EXTRA_EXT(ARB_texture_multisample
);
481 EXTRA_EXT(ARB_texture_gather
);
482 EXTRA_EXT(ARB_shader_atomic_counters
);
483 EXTRA_EXT(ARB_draw_indirect
);
484 EXTRA_EXT(ARB_shader_image_load_store
);
485 EXTRA_EXT(ARB_query_buffer_object
);
486 EXTRA_EXT2(ARB_transform_feedback3
, ARB_gpu_shader5
);
487 EXTRA_EXT(INTEL_performance_query
);
488 EXTRA_EXT(ARB_explicit_uniform_location
);
489 EXTRA_EXT(ARB_clip_control
);
490 EXTRA_EXT(EXT_polygon_offset_clamp
);
491 EXTRA_EXT(ARB_framebuffer_no_attachments
);
492 EXTRA_EXT(ARB_tessellation_shader
);
493 EXTRA_EXT(ARB_shader_storage_buffer_object
);
494 EXTRA_EXT(ARB_indirect_parameters
);
495 EXTRA_EXT(ATI_meminfo
);
496 EXTRA_EXT(NVX_gpu_memory_info
);
497 EXTRA_EXT(ARB_cull_distance
);
498 EXTRA_EXT(EXT_window_rectangles
);
499 EXTRA_EXT(KHR_blend_equation_advanced_coherent
);
500 EXTRA_EXT(OES_primitive_bounding_box
);
501 EXTRA_EXT(ARB_compute_variable_group_size
);
502 EXTRA_EXT(KHR_robustness
);
503 EXTRA_EXT(ARB_sparse_buffer
);
506 extra_ARB_color_buffer_float_or_glcore
[] = {
507 EXT(ARB_color_buffer_float
),
513 extra_NV_primitive_restart
[] = {
514 EXT(NV_primitive_restart
),
518 static const int extra_version_30
[] = { EXTRA_VERSION_30
, EXTRA_END
};
519 static const int extra_version_31
[] = { EXTRA_VERSION_31
, EXTRA_END
};
520 static const int extra_version_32
[] = { EXTRA_VERSION_32
, EXTRA_END
};
522 static const int extra_gl30_es3
[] = {
528 static const int extra_gl32_es3
[] = {
534 static const int extra_version_32_OES_geometry_shader
[] = {
540 static const int extra_gl40_ARB_sample_shading
[] = {
542 EXT(ARB_sample_shading
),
547 extra_ARB_vertex_program_api_es2
[] = {
548 EXT(ARB_vertex_program
),
553 /* The ReadBuffer get token is valid under either full GL or under
554 * GLES2 if the NV_read_buffer extension is available. */
556 extra_NV_read_buffer_api_gl
[] = {
562 static const int extra_core_ARB_color_buffer_float_and_new_buffers
[] = {
564 EXT(ARB_color_buffer_float
),
569 static const int extra_EXT_shader_framebuffer_fetch
[] = {
572 EXT(MESA_shader_framebuffer_fetch
),
576 /* This is the big table describing all the enums we accept in
577 * glGet*v(). The table is partitioned into six parts: enums
578 * understood by all GL APIs (OpenGL, GLES and GLES2), enums shared
579 * between OpenGL and GLES, enums exclusive to GLES, etc for the
580 * remaining combinations. To look up the enums valid in a given API
581 * we will use a hash table specific to that API. These tables are in
582 * turn generated at build time and included through get_hash.h.
585 #include "get_hash.h"
587 /* All we need now is a way to look up the value struct from the enum.
588 * The code generated by gcc for the old generated big switch
589 * statement is a big, balanced, open coded if/else tree, essentially
590 * an unrolled binary search. It would be natural to sort the new
591 * enum table and use bsearch(), but we will use a read-only hash
592 * table instead. bsearch() has a nice guaranteed worst case
593 * performance, but we're also guaranteed to hit that worst case
594 * (log2(n) iterations) for about half the enums. Instead, using an
595 * open addressing hash table, we can find the enum on the first try
596 * for 80% of the enums, 1 collision for 10% and never more than 5
597 * collisions for any enum (typical numbers). And the code is very
598 * simple, even though it feels a little magic. */
601 * Handle irregular enums
603 * Some values don't conform to the "well-known type at context
604 * pointer + offset" pattern, so we have this function to catch all
605 * the corner cases. Typically, it's a computed value or a one-off
606 * pointer to a custom struct or something.
608 * In this case we can't return a pointer to the value, so we'll have
609 * to use the temporary variable 'v' declared back in the calling
610 * glGet*v() function to store the result.
612 * \param ctx the current context
613 * \param d the struct value_desc that describes the enum
614 * \param v pointer to the tmp declared in the calling glGet*v() function
617 find_custom_value(struct gl_context
*ctx
, const struct value_desc
*d
, union value
*v
)
619 struct gl_buffer_object
**buffer_obj
;
620 struct gl_array_attributes
*array
;
624 case GL_MAJOR_VERSION
:
625 v
->value_int
= ctx
->Version
/ 10;
627 case GL_MINOR_VERSION
:
628 v
->value_int
= ctx
->Version
% 10;
634 case GL_TEXTURE_CUBE_MAP
:
635 case GL_TEXTURE_RECTANGLE_NV
:
636 case GL_TEXTURE_EXTERNAL_OES
:
637 v
->value_bool
= _mesa_IsEnabled(d
->pname
);
640 case GL_LINE_STIPPLE_PATTERN
:
641 /* This is the only GLushort, special case it here by promoting
642 * to an int rather than introducing a new type. */
643 v
->value_int
= ctx
->Line
.StipplePattern
;
646 case GL_CURRENT_RASTER_TEXTURE_COORDS
:
647 unit
= ctx
->Texture
.CurrentUnit
;
648 v
->value_float_4
[0] = ctx
->Current
.RasterTexCoords
[unit
][0];
649 v
->value_float_4
[1] = ctx
->Current
.RasterTexCoords
[unit
][1];
650 v
->value_float_4
[2] = ctx
->Current
.RasterTexCoords
[unit
][2];
651 v
->value_float_4
[3] = ctx
->Current
.RasterTexCoords
[unit
][3];
654 case GL_CURRENT_TEXTURE_COORDS
:
655 unit
= ctx
->Texture
.CurrentUnit
;
656 v
->value_float_4
[0] = ctx
->Current
.Attrib
[VERT_ATTRIB_TEX0
+ unit
][0];
657 v
->value_float_4
[1] = ctx
->Current
.Attrib
[VERT_ATTRIB_TEX0
+ unit
][1];
658 v
->value_float_4
[2] = ctx
->Current
.Attrib
[VERT_ATTRIB_TEX0
+ unit
][2];
659 v
->value_float_4
[3] = ctx
->Current
.Attrib
[VERT_ATTRIB_TEX0
+ unit
][3];
662 case GL_COLOR_WRITEMASK
:
663 v
->value_int_4
[0] = ctx
->Color
.ColorMask
[0][RCOMP
] ? 1 : 0;
664 v
->value_int_4
[1] = ctx
->Color
.ColorMask
[0][GCOMP
] ? 1 : 0;
665 v
->value_int_4
[2] = ctx
->Color
.ColorMask
[0][BCOMP
] ? 1 : 0;
666 v
->value_int_4
[3] = ctx
->Color
.ColorMask
[0][ACOMP
] ? 1 : 0;
670 v
->value_bool
= ctx
->Current
.Attrib
[VERT_ATTRIB_EDGEFLAG
][0] == 1.0F
;
674 v
->value_enum
= ctx
->ReadBuffer
->ColorReadBuffer
;
677 case GL_MAP2_GRID_DOMAIN
:
678 v
->value_float_4
[0] = ctx
->Eval
.MapGrid2u1
;
679 v
->value_float_4
[1] = ctx
->Eval
.MapGrid2u2
;
680 v
->value_float_4
[2] = ctx
->Eval
.MapGrid2v1
;
681 v
->value_float_4
[3] = ctx
->Eval
.MapGrid2v2
;
684 case GL_TEXTURE_STACK_DEPTH
:
685 unit
= ctx
->Texture
.CurrentUnit
;
686 v
->value_int
= ctx
->TextureMatrixStack
[unit
].Depth
+ 1;
688 case GL_TEXTURE_MATRIX
:
689 unit
= ctx
->Texture
.CurrentUnit
;
690 v
->value_matrix
= ctx
->TextureMatrixStack
[unit
].Top
;
693 case GL_TEXTURE_COORD_ARRAY
:
694 case GL_TEXTURE_COORD_ARRAY_SIZE
:
695 case GL_TEXTURE_COORD_ARRAY_TYPE
:
696 case GL_TEXTURE_COORD_ARRAY_STRIDE
:
697 array
= &ctx
->Array
.VAO
->VertexAttrib
[VERT_ATTRIB_TEX(ctx
->Array
.ActiveTexture
)];
698 v
->value_int
= *(GLuint
*) ((char *) array
+ d
->offset
);
701 case GL_ACTIVE_TEXTURE_ARB
:
702 v
->value_int
= GL_TEXTURE0_ARB
+ ctx
->Texture
.CurrentUnit
;
704 case GL_CLIENT_ACTIVE_TEXTURE_ARB
:
705 v
->value_int
= GL_TEXTURE0_ARB
+ ctx
->Array
.ActiveTexture
;
708 case GL_MODELVIEW_STACK_DEPTH
:
709 case GL_PROJECTION_STACK_DEPTH
:
710 v
->value_int
= *(GLint
*) ((char *) ctx
+ d
->offset
) + 1;
713 case GL_MAX_TEXTURE_SIZE
:
714 case GL_MAX_3D_TEXTURE_SIZE
:
715 case GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB
:
716 p
= (GLuint
*) ((char *) ctx
+ d
->offset
);
717 v
->value_int
= 1 << (*p
- 1);
721 v
->value_int_4
[0] = ctx
->Scissor
.ScissorArray
[0].X
;
722 v
->value_int_4
[1] = ctx
->Scissor
.ScissorArray
[0].Y
;
723 v
->value_int_4
[2] = ctx
->Scissor
.ScissorArray
[0].Width
;
724 v
->value_int_4
[3] = ctx
->Scissor
.ScissorArray
[0].Height
;
727 case GL_SCISSOR_TEST
:
728 v
->value_bool
= ctx
->Scissor
.EnableFlags
& 1;
733 ctx
->ListState
.CurrentList
? ctx
->ListState
.CurrentList
->Name
: 0;
736 if (!ctx
->CompileFlag
)
738 else if (ctx
->ExecuteFlag
)
739 v
->value_enum
= GL_COMPILE_AND_EXECUTE
;
741 v
->value_enum
= GL_COMPILE
;
745 v
->value_float_4
[0] = ctx
->ViewportArray
[0].X
;
746 v
->value_float_4
[1] = ctx
->ViewportArray
[0].Y
;
747 v
->value_float_4
[2] = ctx
->ViewportArray
[0].Width
;
748 v
->value_float_4
[3] = ctx
->ViewportArray
[0].Height
;
752 v
->value_double_2
[0] = ctx
->ViewportArray
[0].Near
;
753 v
->value_double_2
[1] = ctx
->ViewportArray
[0].Far
;
756 case GL_ACTIVE_STENCIL_FACE_EXT
:
757 v
->value_enum
= ctx
->Stencil
.ActiveFace
? GL_BACK
: GL_FRONT
;
760 case GL_STENCIL_FAIL
:
761 v
->value_enum
= ctx
->Stencil
.FailFunc
[ctx
->Stencil
.ActiveFace
];
763 case GL_STENCIL_FUNC
:
764 v
->value_enum
= ctx
->Stencil
.Function
[ctx
->Stencil
.ActiveFace
];
766 case GL_STENCIL_PASS_DEPTH_FAIL
:
767 v
->value_enum
= ctx
->Stencil
.ZFailFunc
[ctx
->Stencil
.ActiveFace
];
769 case GL_STENCIL_PASS_DEPTH_PASS
:
770 v
->value_enum
= ctx
->Stencil
.ZPassFunc
[ctx
->Stencil
.ActiveFace
];
773 v
->value_int
= _mesa_get_stencil_ref(ctx
, ctx
->Stencil
.ActiveFace
);
775 case GL_STENCIL_BACK_REF
:
776 v
->value_int
= _mesa_get_stencil_ref(ctx
, 1);
778 case GL_STENCIL_VALUE_MASK
:
779 v
->value_int
= ctx
->Stencil
.ValueMask
[ctx
->Stencil
.ActiveFace
];
781 case GL_STENCIL_WRITEMASK
:
782 v
->value_int
= ctx
->Stencil
.WriteMask
[ctx
->Stencil
.ActiveFace
];
785 case GL_NUM_EXTENSIONS
:
786 v
->value_int
= _mesa_get_extension_count(ctx
);
789 case GL_IMPLEMENTATION_COLOR_READ_TYPE_OES
:
790 v
->value_int
= _mesa_get_color_read_type(ctx
, NULL
, "glGetIntegerv");
792 case GL_IMPLEMENTATION_COLOR_READ_FORMAT_OES
:
793 v
->value_int
= _mesa_get_color_read_format(ctx
, NULL
, "glGetIntegerv");
796 case GL_CURRENT_MATRIX_STACK_DEPTH_ARB
:
797 v
->value_int
= ctx
->CurrentStack
->Depth
+ 1;
799 case GL_CURRENT_MATRIX_ARB
:
800 case GL_TRANSPOSE_CURRENT_MATRIX_ARB
:
801 v
->value_matrix
= ctx
->CurrentStack
->Top
;
804 case GL_NUM_COMPRESSED_TEXTURE_FORMATS_ARB
:
805 v
->value_int
= _mesa_get_compressed_formats(ctx
, NULL
);
807 case GL_COMPRESSED_TEXTURE_FORMATS_ARB
:
809 _mesa_get_compressed_formats(ctx
, v
->value_int_n
.ints
);
810 assert(v
->value_int_n
.n
<= (int) ARRAY_SIZE(v
->value_int_n
.ints
));
813 case GL_MAX_VARYING_FLOATS_ARB
:
814 v
->value_int
= ctx
->Const
.MaxVarying
* 4;
817 /* Various object names */
819 case GL_TEXTURE_BINDING_1D
:
820 case GL_TEXTURE_BINDING_2D
:
821 case GL_TEXTURE_BINDING_3D
:
822 case GL_TEXTURE_BINDING_1D_ARRAY_EXT
:
823 case GL_TEXTURE_BINDING_2D_ARRAY_EXT
:
824 case GL_TEXTURE_BINDING_CUBE_MAP_ARB
:
825 case GL_TEXTURE_BINDING_RECTANGLE_NV
:
826 case GL_TEXTURE_BINDING_EXTERNAL_OES
:
827 case GL_TEXTURE_BINDING_CUBE_MAP_ARRAY
:
828 case GL_TEXTURE_BINDING_2D_MULTISAMPLE
:
829 case GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY
:
830 unit
= ctx
->Texture
.CurrentUnit
;
832 ctx
->Texture
.Unit
[unit
].CurrentTex
[d
->offset
]->Name
;
835 /* GL_EXT_packed_float */
836 case GL_RGBA_SIGNED_COMPONENTS_EXT
:
838 /* Note: we only check the 0th color attachment. */
839 const struct gl_renderbuffer
*rb
=
840 ctx
->DrawBuffer
->_ColorDrawBuffers
[0];
841 if (rb
&& _mesa_is_format_signed(rb
->Format
)) {
842 /* Issue 17 of GL_EXT_packed_float: If a component (such as
843 * alpha) has zero bits, the component should not be considered
844 * signed and so the bit for the respective component should be
848 _mesa_get_format_bits(rb
->Format
, GL_RED_BITS
);
850 _mesa_get_format_bits(rb
->Format
, GL_GREEN_BITS
);
852 _mesa_get_format_bits(rb
->Format
, GL_BLUE_BITS
);
854 _mesa_get_format_bits(rb
->Format
, GL_ALPHA_BITS
);
856 _mesa_get_format_bits(rb
->Format
, GL_TEXTURE_LUMINANCE_SIZE
);
858 _mesa_get_format_bits(rb
->Format
, GL_TEXTURE_INTENSITY_SIZE
);
860 v
->value_int_4
[0] = r_bits
+ l_bits
+ i_bits
> 0;
861 v
->value_int_4
[1] = g_bits
+ l_bits
+ i_bits
> 0;
862 v
->value_int_4
[2] = b_bits
+ l_bits
+ i_bits
> 0;
863 v
->value_int_4
[3] = a_bits
+ i_bits
> 0;
869 v
->value_int_4
[3] = 0;
874 /* GL_ARB_vertex_buffer_object */
875 case GL_VERTEX_ARRAY_BUFFER_BINDING_ARB
:
876 case GL_NORMAL_ARRAY_BUFFER_BINDING_ARB
:
877 case GL_COLOR_ARRAY_BUFFER_BINDING_ARB
:
878 case GL_INDEX_ARRAY_BUFFER_BINDING_ARB
:
879 case GL_EDGE_FLAG_ARRAY_BUFFER_BINDING_ARB
:
880 case GL_SECONDARY_COLOR_ARRAY_BUFFER_BINDING_ARB
:
881 case GL_FOG_COORDINATE_ARRAY_BUFFER_BINDING_ARB
:
882 buffer_obj
= (struct gl_buffer_object
**)
883 ((char *) ctx
->Array
.VAO
+ d
->offset
);
884 v
->value_int
= (*buffer_obj
)->Name
;
886 case GL_ARRAY_BUFFER_BINDING_ARB
:
887 v
->value_int
= ctx
->Array
.ArrayBufferObj
->Name
;
889 case GL_TEXTURE_COORD_ARRAY_BUFFER_BINDING_ARB
:
891 ctx
->Array
.VAO
->BufferBinding
[VERT_ATTRIB_TEX(ctx
->Array
.ActiveTexture
)].BufferObj
->Name
;
893 case GL_ELEMENT_ARRAY_BUFFER_BINDING_ARB
:
894 v
->value_int
= ctx
->Array
.VAO
->IndexBufferObj
->Name
;
897 /* ARB_vertex_array_bgra */
898 case GL_COLOR_ARRAY_SIZE
:
899 array
= &ctx
->Array
.VAO
->VertexAttrib
[VERT_ATTRIB_COLOR0
];
900 v
->value_int
= array
->Format
== GL_BGRA
? GL_BGRA
: array
->Size
;
902 case GL_SECONDARY_COLOR_ARRAY_SIZE
:
903 array
= &ctx
->Array
.VAO
->VertexAttrib
[VERT_ATTRIB_COLOR1
];
904 v
->value_int
= array
->Format
== GL_BGRA
? GL_BGRA
: array
->Size
;
907 /* ARB_copy_buffer */
908 case GL_COPY_READ_BUFFER
:
909 v
->value_int
= ctx
->CopyReadBuffer
->Name
;
911 case GL_COPY_WRITE_BUFFER
:
912 v
->value_int
= ctx
->CopyWriteBuffer
->Name
;
915 case GL_PIXEL_PACK_BUFFER_BINDING_EXT
:
916 v
->value_int
= ctx
->Pack
.BufferObj
->Name
;
918 case GL_PIXEL_UNPACK_BUFFER_BINDING_EXT
:
919 v
->value_int
= ctx
->Unpack
.BufferObj
->Name
;
921 case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING
:
922 v
->value_int
= ctx
->TransformFeedback
.CurrentBuffer
->Name
;
924 case GL_TRANSFORM_FEEDBACK_BUFFER_PAUSED
:
925 v
->value_int
= ctx
->TransformFeedback
.CurrentObject
->Paused
;
927 case GL_TRANSFORM_FEEDBACK_BUFFER_ACTIVE
:
928 v
->value_int
= ctx
->TransformFeedback
.CurrentObject
->Active
;
930 case GL_TRANSFORM_FEEDBACK_BINDING
:
931 v
->value_int
= ctx
->TransformFeedback
.CurrentObject
->Name
;
933 case GL_CURRENT_PROGRAM
:
934 /* The Changelog of the ARB_separate_shader_objects spec says:
936 * 24 25 Jul 2011 pbrown Remove the language erroneously deleting
937 * CURRENT_PROGRAM. In the EXT extension, this
938 * token was aliased to ACTIVE_PROGRAM_EXT, and
939 * was used to indicate the last program set by
940 * either ActiveProgramEXT or UseProgram. In
941 * the ARB extension, the SSO active programs
942 * are now program pipeline object state and
943 * CURRENT_PROGRAM should still be used to query
944 * the last program set by UseProgram (bug 7822).
947 ctx
->Shader
.ActiveProgram
? ctx
->Shader
.ActiveProgram
->Name
: 0;
949 case GL_READ_FRAMEBUFFER_BINDING_EXT
:
950 v
->value_int
= ctx
->ReadBuffer
->Name
;
952 case GL_RENDERBUFFER_BINDING_EXT
:
954 ctx
->CurrentRenderbuffer
? ctx
->CurrentRenderbuffer
->Name
: 0;
956 case GL_POINT_SIZE_ARRAY_BUFFER_BINDING_OES
:
957 v
->value_int
= ctx
->Array
.VAO
->BufferBinding
[VERT_ATTRIB_POINT_SIZE
].BufferObj
->Name
;
961 if (_mesa_get_clamp_fragment_color(ctx
, ctx
->DrawBuffer
))
962 COPY_4FV(v
->value_float_4
, ctx
->Fog
.Color
);
964 COPY_4FV(v
->value_float_4
, ctx
->Fog
.ColorUnclamped
);
966 case GL_COLOR_CLEAR_VALUE
:
967 if (_mesa_get_clamp_fragment_color(ctx
, ctx
->DrawBuffer
)) {
968 v
->value_float_4
[0] = CLAMP(ctx
->Color
.ClearColor
.f
[0], 0.0F
, 1.0F
);
969 v
->value_float_4
[1] = CLAMP(ctx
->Color
.ClearColor
.f
[1], 0.0F
, 1.0F
);
970 v
->value_float_4
[2] = CLAMP(ctx
->Color
.ClearColor
.f
[2], 0.0F
, 1.0F
);
971 v
->value_float_4
[3] = CLAMP(ctx
->Color
.ClearColor
.f
[3], 0.0F
, 1.0F
);
973 COPY_4FV(v
->value_float_4
, ctx
->Color
.ClearColor
.f
);
975 case GL_BLEND_COLOR_EXT
:
976 if (_mesa_get_clamp_fragment_color(ctx
, ctx
->DrawBuffer
))
977 COPY_4FV(v
->value_float_4
, ctx
->Color
.BlendColor
);
979 COPY_4FV(v
->value_float_4
, ctx
->Color
.BlendColorUnclamped
);
981 case GL_ALPHA_TEST_REF
:
982 if (_mesa_get_clamp_fragment_color(ctx
, ctx
->DrawBuffer
))
983 v
->value_float
= ctx
->Color
.AlphaRef
;
985 v
->value_float
= ctx
->Color
.AlphaRefUnclamped
;
987 case GL_MAX_VERTEX_UNIFORM_VECTORS
:
988 v
->value_int
= ctx
->Const
.Program
[MESA_SHADER_VERTEX
].MaxUniformComponents
/ 4;
991 case GL_MAX_FRAGMENT_UNIFORM_VECTORS
:
992 v
->value_int
= ctx
->Const
.Program
[MESA_SHADER_FRAGMENT
].MaxUniformComponents
/ 4;
995 /* GL_ARB_texture_buffer_object */
996 case GL_TEXTURE_BUFFER_ARB
:
997 v
->value_int
= ctx
->Texture
.BufferObject
->Name
;
999 case GL_TEXTURE_BINDING_BUFFER_ARB
:
1000 unit
= ctx
->Texture
.CurrentUnit
;
1002 ctx
->Texture
.Unit
[unit
].CurrentTex
[TEXTURE_BUFFER_INDEX
]->Name
;
1004 case GL_TEXTURE_BUFFER_DATA_STORE_BINDING_ARB
:
1006 struct gl_buffer_object
*buf
=
1007 ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
]
1008 .CurrentTex
[TEXTURE_BUFFER_INDEX
]->BufferObject
;
1009 v
->value_int
= buf
? buf
->Name
: 0;
1012 case GL_TEXTURE_BUFFER_FORMAT_ARB
:
1013 v
->value_int
= ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
]
1014 .CurrentTex
[TEXTURE_BUFFER_INDEX
]->BufferObjectFormat
;
1017 /* GL_ARB_sampler_objects */
1018 case GL_SAMPLER_BINDING
:
1020 struct gl_sampler_object
*samp
=
1021 ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
].Sampler
;
1022 v
->value_int
= samp
? samp
->Name
: 0;
1025 /* GL_ARB_uniform_buffer_object */
1026 case GL_UNIFORM_BUFFER_BINDING
:
1027 v
->value_int
= ctx
->UniformBuffer
->Name
;
1029 /* GL_ARB_shader_storage_buffer_object */
1030 case GL_SHADER_STORAGE_BUFFER_BINDING
:
1031 v
->value_int
= ctx
->ShaderStorageBuffer
->Name
;
1033 /* GL_ARB_query_buffer_object */
1034 case GL_QUERY_BUFFER_BINDING
:
1035 v
->value_int
= ctx
->QueryBuffer
->Name
;
1037 /* GL_ARB_timer_query */
1039 if (ctx
->Driver
.GetTimestamp
) {
1040 v
->value_int64
= ctx
->Driver
.GetTimestamp(ctx
);
1043 _mesa_problem(ctx
, "driver doesn't implement GetTimestamp");
1047 case GL_DEBUG_OUTPUT
:
1048 case GL_DEBUG_OUTPUT_SYNCHRONOUS
:
1049 case GL_DEBUG_LOGGED_MESSAGES
:
1050 case GL_DEBUG_NEXT_LOGGED_MESSAGE_LENGTH
:
1051 case GL_DEBUG_GROUP_STACK_DEPTH
:
1052 v
->value_int
= _mesa_get_debug_state_int(ctx
, d
->pname
);
1054 /* GL_ARB_shader_atomic_counters */
1055 case GL_ATOMIC_COUNTER_BUFFER_BINDING
:
1056 if (ctx
->AtomicBuffer
) {
1057 v
->value_int
= ctx
->AtomicBuffer
->Name
;
1062 /* GL_ARB_draw_indirect */
1063 case GL_DRAW_INDIRECT_BUFFER_BINDING
:
1064 v
->value_int
= ctx
->DrawIndirectBuffer
->Name
;
1066 /* GL_ARB_indirect_parameters */
1067 case GL_PARAMETER_BUFFER_BINDING_ARB
:
1068 v
->value_int
= ctx
->ParameterBuffer
->Name
;
1070 /* GL_ARB_separate_shader_objects */
1071 case GL_PROGRAM_PIPELINE_BINDING
:
1072 if (ctx
->Pipeline
.Current
) {
1073 v
->value_int
= ctx
->Pipeline
.Current
->Name
;
1078 /* GL_ARB_compute_shader */
1079 case GL_DISPATCH_INDIRECT_BUFFER_BINDING
:
1080 v
->value_int
= ctx
->DispatchIndirectBuffer
->Name
;
1082 /* GL_ARB_multisample */
1084 v
->value_int
= _mesa_geometric_samples(ctx
->DrawBuffer
);
1086 case GL_SAMPLE_BUFFERS
:
1087 v
->value_int
= _mesa_geometric_samples(ctx
->DrawBuffer
) > 0;
1089 /* GL_EXT_textrue_integer */
1090 case GL_RGBA_INTEGER_MODE_EXT
:
1091 v
->value_int
= (ctx
->DrawBuffer
->_IntegerBuffers
!= 0);
1093 /* GL_ATI_meminfo & GL_NVX_gpu_memory_info */
1094 case GL_VBO_FREE_MEMORY_ATI
:
1095 case GL_TEXTURE_FREE_MEMORY_ATI
:
1096 case GL_RENDERBUFFER_FREE_MEMORY_ATI
:
1097 case GL_GPU_MEMORY_INFO_DEDICATED_VIDMEM_NVX
:
1098 case GL_GPU_MEMORY_INFO_TOTAL_AVAILABLE_MEMORY_NVX
:
1099 case GL_GPU_MEMORY_INFO_CURRENT_AVAILABLE_VIDMEM_NVX
:
1100 case GL_GPU_MEMORY_INFO_EVICTION_COUNT_NVX
:
1101 case GL_GPU_MEMORY_INFO_EVICTED_MEMORY_NVX
:
1103 struct gl_memory_info info
;
1105 ctx
->Driver
.QueryMemoryInfo(ctx
, &info
);
1107 if (d
->pname
== GL_GPU_MEMORY_INFO_DEDICATED_VIDMEM_NVX
)
1108 v
->value_int
= info
.total_device_memory
;
1109 else if (d
->pname
== GL_GPU_MEMORY_INFO_TOTAL_AVAILABLE_MEMORY_NVX
)
1110 v
->value_int
= info
.total_device_memory
+
1111 info
.total_staging_memory
;
1112 else if (d
->pname
== GL_GPU_MEMORY_INFO_CURRENT_AVAILABLE_VIDMEM_NVX
)
1113 v
->value_int
= info
.avail_device_memory
;
1114 else if (d
->pname
== GL_GPU_MEMORY_INFO_EVICTION_COUNT_NVX
)
1115 v
->value_int
= info
.nr_device_memory_evictions
;
1116 else if (d
->pname
== GL_GPU_MEMORY_INFO_EVICTED_MEMORY_NVX
)
1117 v
->value_int
= info
.device_memory_evicted
;
1119 /* ATI free memory enums.
1121 * Since the GPU memory is (usually) page-table based, every two
1122 * consecutive elements are equal. From the GL_ATI_meminfo
1125 * "param[0] - total memory free in the pool
1126 * param[1] - largest available free block in the pool
1127 * param[2] - total auxiliary memory free
1128 * param[3] - largest auxiliary free block"
1130 * All three (VBO, TEXTURE, RENDERBUFFER) queries return
1131 * the same numbers here.
1133 v
->value_int_4
[0] = info
.avail_device_memory
;
1134 v
->value_int_4
[1] = info
.avail_device_memory
;
1135 v
->value_int_4
[2] = info
.avail_staging_memory
;
1136 v
->value_int_4
[3] = info
.avail_staging_memory
;
1144 * Check extra constraints on a struct value_desc descriptor
1146 * If a struct value_desc has a non-NULL extra pointer, it means that
1147 * there are a number of extra constraints to check or actions to
1148 * perform. The extras is just an integer array where each integer
1149 * encode different constraints or actions.
1151 * \param ctx current context
1152 * \param func name of calling glGet*v() function for error reporting
1153 * \param d the struct value_desc that has the extra constraints
1155 * \return GL_FALSE if all of the constraints were not satisfied,
1156 * otherwise GL_TRUE.
1159 check_extra(struct gl_context
*ctx
, const char *func
, const struct value_desc
*d
)
1161 const GLuint version
= ctx
->Version
;
1162 GLboolean api_check
= GL_FALSE
;
1163 GLboolean api_found
= GL_FALSE
;
1166 for (e
= d
->extra
; *e
!= EXTRA_END
; e
++) {
1168 case EXTRA_VERSION_30
:
1169 api_check
= GL_TRUE
;
1171 api_found
= GL_TRUE
;
1173 case EXTRA_VERSION_31
:
1174 api_check
= GL_TRUE
;
1176 api_found
= GL_TRUE
;
1178 case EXTRA_VERSION_32
:
1179 api_check
= GL_TRUE
;
1181 api_found
= GL_TRUE
;
1183 case EXTRA_NEW_FRAG_CLAMP
:
1184 if (ctx
->NewState
& (_NEW_BUFFERS
| _NEW_FRAG_CLAMP
))
1185 _mesa_update_state(ctx
);
1188 api_check
= GL_TRUE
;
1189 if (ctx
->API
== API_OPENGLES2
)
1190 api_found
= GL_TRUE
;
1193 api_check
= GL_TRUE
;
1194 if (_mesa_is_gles3(ctx
))
1195 api_found
= GL_TRUE
;
1197 case EXTRA_API_ES31
:
1198 api_check
= GL_TRUE
;
1199 if (_mesa_is_gles31(ctx
))
1200 api_found
= GL_TRUE
;
1202 case EXTRA_API_ES32
:
1203 api_check
= GL_TRUE
;
1204 if (_mesa_is_gles32(ctx
))
1205 api_found
= GL_TRUE
;
1208 api_check
= GL_TRUE
;
1209 if (_mesa_is_desktop_gl(ctx
))
1210 api_found
= GL_TRUE
;
1212 case EXTRA_API_GL_CORE
:
1213 api_check
= GL_TRUE
;
1214 if (ctx
->API
== API_OPENGL_CORE
)
1215 api_found
= GL_TRUE
;
1217 case EXTRA_NEW_BUFFERS
:
1218 if (ctx
->NewState
& _NEW_BUFFERS
)
1219 _mesa_update_state(ctx
);
1221 case EXTRA_FLUSH_CURRENT
:
1222 FLUSH_CURRENT(ctx
, 0);
1224 case EXTRA_VALID_DRAW_BUFFER
:
1225 if (d
->pname
- GL_DRAW_BUFFER0_ARB
>= ctx
->Const
.MaxDrawBuffers
) {
1226 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(draw buffer %u)",
1227 func
, d
->pname
- GL_DRAW_BUFFER0_ARB
);
1231 case EXTRA_VALID_TEXTURE_UNIT
:
1232 if (ctx
->Texture
.CurrentUnit
>= ctx
->Const
.MaxTextureCoordUnits
) {
1233 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(texture %u)",
1234 func
, ctx
->Texture
.CurrentUnit
);
1238 case EXTRA_VALID_CLIP_DISTANCE
:
1239 if (d
->pname
- GL_CLIP_DISTANCE0
>= ctx
->Const
.MaxClipPlanes
) {
1240 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(clip distance %u)",
1241 func
, d
->pname
- GL_CLIP_DISTANCE0
);
1245 case EXTRA_GLSL_130
:
1246 api_check
= GL_TRUE
;
1247 if (ctx
->Const
.GLSLVersion
>= 130)
1248 api_found
= GL_TRUE
;
1250 case EXTRA_EXT_UBO_GS
:
1251 api_check
= GL_TRUE
;
1252 if (ctx
->Extensions
.ARB_uniform_buffer_object
&&
1253 _mesa_has_geometry_shaders(ctx
))
1254 api_found
= GL_TRUE
;
1256 case EXTRA_EXT_ATOMICS_GS
:
1257 api_check
= GL_TRUE
;
1258 if (ctx
->Extensions
.ARB_shader_atomic_counters
&&
1259 _mesa_has_geometry_shaders(ctx
))
1260 api_found
= GL_TRUE
;
1262 case EXTRA_EXT_SHADER_IMAGE_GS
:
1263 api_check
= GL_TRUE
;
1264 if (ctx
->Extensions
.ARB_shader_image_load_store
&&
1265 _mesa_has_geometry_shaders(ctx
))
1266 api_found
= GL_TRUE
;
1268 case EXTRA_EXT_ATOMICS_TESS
:
1269 api_check
= GL_TRUE
;
1270 api_found
= ctx
->Extensions
.ARB_shader_atomic_counters
&&
1271 _mesa_has_tessellation(ctx
);
1273 case EXTRA_EXT_SHADER_IMAGE_TESS
:
1274 api_check
= GL_TRUE
;
1275 api_found
= ctx
->Extensions
.ARB_shader_image_load_store
&&
1276 _mesa_has_tessellation(ctx
);
1278 case EXTRA_EXT_SSBO_GS
:
1279 api_check
= GL_TRUE
;
1280 if (ctx
->Extensions
.ARB_shader_storage_buffer_object
&&
1281 _mesa_has_geometry_shaders(ctx
))
1282 api_found
= GL_TRUE
;
1284 case EXTRA_EXT_FB_NO_ATTACH_GS
:
1285 api_check
= GL_TRUE
;
1286 if (ctx
->Extensions
.ARB_framebuffer_no_attachments
&&
1287 (_mesa_is_desktop_gl(ctx
) ||
1288 _mesa_has_OES_geometry_shader(ctx
)))
1289 api_found
= GL_TRUE
;
1291 case EXTRA_EXT_ES_GS
:
1292 api_check
= GL_TRUE
;
1293 if (_mesa_has_OES_geometry_shader(ctx
))
1294 api_found
= GL_TRUE
;
1298 default: /* *e is a offset into the extension struct */
1299 api_check
= GL_TRUE
;
1300 if (*(GLboolean
*) ((char *) &ctx
->Extensions
+ *e
))
1301 api_found
= GL_TRUE
;
1306 if (api_check
&& !api_found
) {
1307 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=%s)", func
,
1308 _mesa_enum_to_string(d
->pname
));
1315 static const struct value_desc error_value
=
1316 { 0, 0, TYPE_INVALID
, NO_OFFSET
, NO_EXTRA
};
1319 * Find the struct value_desc corresponding to the enum 'pname'.
1321 * We hash the enum value to get an index into the 'table' array,
1322 * which holds the index in the 'values' array of struct value_desc.
1323 * Once we've found the entry, we do the extra checks, if any, then
1324 * look up the value and return a pointer to it.
1326 * If the value has to be computed (for example, it's the result of a
1327 * function call or we need to add 1 to it), we use the tmp 'v' to
1330 * \param func name of glGet*v() func for error reporting
1331 * \param pname the enum value we're looking up
1332 * \param p is were we return the pointer to the value
1333 * \param v a tmp union value variable in the calling glGet*v() function
1335 * \return the struct value_desc corresponding to the enum or a struct
1336 * value_desc of TYPE_INVALID if not found. This lets the calling
1337 * glGet*v() function jump right into a switch statement and
1338 * handle errors there instead of having to check for NULL.
1340 static const struct value_desc
*
1341 find_value(const char *func
, GLenum pname
, void **p
, union value
*v
)
1343 GET_CURRENT_CONTEXT(ctx
);
1344 struct gl_texture_unit
*unit
;
1346 const struct value_desc
*d
;
1350 /* We index into the table_set[] list of per-API hash tables using the API's
1351 * value in the gl_api enum. Since GLES 3 doesn't have an API_OPENGL* enum
1352 * value since it's compatible with GLES2 its entry in table_set[] is at the
1355 STATIC_ASSERT(ARRAY_SIZE(table_set
) == API_OPENGL_LAST
+ 4);
1356 if (ctx
->API
== API_OPENGLES2
) {
1357 if (ctx
->Version
>= 32)
1358 api
= API_OPENGL_LAST
+ 3;
1359 else if (ctx
->Version
>= 31)
1360 api
= API_OPENGL_LAST
+ 2;
1361 else if (ctx
->Version
>= 30)
1362 api
= API_OPENGL_LAST
+ 1;
1364 mask
= ARRAY_SIZE(table(api
)) - 1;
1365 hash
= (pname
* prime_factor
);
1367 int idx
= table(api
)[hash
& mask
];
1369 /* If the enum isn't valid, the hash walk ends with index 0,
1370 * pointing to the first entry of values[] which doesn't hold
1371 * any valid enum. */
1372 if (unlikely(idx
== 0)) {
1373 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=%s)", func
,
1374 _mesa_enum_to_string(pname
));
1375 return &error_value
;
1379 if (likely(d
->pname
== pname
))
1385 if (unlikely(d
->extra
&& !check_extra(ctx
, func
, d
)))
1386 return &error_value
;
1388 switch (d
->location
) {
1390 *p
= ((char *) ctx
->DrawBuffer
+ d
->offset
);
1393 *p
= ((char *) ctx
+ d
->offset
);
1396 *p
= ((char *) ctx
->Array
.VAO
+ d
->offset
);
1399 unit
= &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1400 *p
= ((char *) unit
+ d
->offset
);
1403 find_custom_value(ctx
, d
, v
);
1411 /* silence warning */
1412 return &error_value
;
1415 static const int transpose
[] = {
1423 _mesa_GetBooleanv(GLenum pname
, GLboolean
*params
)
1425 const struct value_desc
*d
;
1431 d
= find_value("glGetBooleanv", pname
, &p
, &v
);
1436 params
[0] = INT_TO_BOOLEAN(d
->offset
);
1440 params
[7] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[7]);
1441 params
[6] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[6]);
1442 params
[5] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[5]);
1443 params
[4] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[4]);
1446 params
[3] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[3]);
1449 params
[2] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[2]);
1452 params
[1] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[1]);
1455 params
[0] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[0]);
1458 case TYPE_DOUBLEN_2
:
1459 params
[1] = FLOAT_TO_BOOLEAN(((GLdouble
*) p
)[1]);
1461 params
[0] = FLOAT_TO_BOOLEAN(((GLdouble
*) p
)[0]);
1466 params
[3] = INT_TO_BOOLEAN(((GLint
*) p
)[3]);
1469 params
[2] = INT_TO_BOOLEAN(((GLint
*) p
)[2]);
1473 params
[1] = INT_TO_BOOLEAN(((GLint
*) p
)[1]);
1477 params
[0] = INT_TO_BOOLEAN(((GLint
*) p
)[0]);
1481 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1482 params
[i
] = INT_TO_BOOLEAN(v
.value_int_n
.ints
[i
]);
1486 params
[0] = INT64_TO_BOOLEAN(((GLint64
*) p
)[0]);
1490 params
[0] = ((GLboolean
*) p
)[0];
1494 m
= *(GLmatrix
**) p
;
1495 for (i
= 0; i
< 16; i
++)
1496 params
[i
] = FLOAT_TO_BOOLEAN(m
->m
[i
]);
1500 m
= *(GLmatrix
**) p
;
1501 for (i
= 0; i
< 16; i
++)
1502 params
[i
] = FLOAT_TO_BOOLEAN(m
->m
[transpose
[i
]]);
1513 shift
= d
->type
- TYPE_BIT_0
;
1514 params
[0] = (*(GLbitfield
*) p
>> shift
) & 1;
1520 _mesa_GetFloatv(GLenum pname
, GLfloat
*params
)
1522 const struct value_desc
*d
;
1528 d
= find_value("glGetFloatv", pname
, &p
, &v
);
1533 params
[0] = (GLfloat
) d
->offset
;
1537 params
[7] = ((GLfloat
*) p
)[7];
1538 params
[6] = ((GLfloat
*) p
)[6];
1539 params
[5] = ((GLfloat
*) p
)[5];
1540 params
[4] = ((GLfloat
*) p
)[4];
1543 params
[3] = ((GLfloat
*) p
)[3];
1546 params
[2] = ((GLfloat
*) p
)[2];
1549 params
[1] = ((GLfloat
*) p
)[1];
1552 params
[0] = ((GLfloat
*) p
)[0];
1555 case TYPE_DOUBLEN_2
:
1556 params
[1] = (GLfloat
) (((GLdouble
*) p
)[1]);
1558 params
[0] = (GLfloat
) (((GLdouble
*) p
)[0]);
1562 params
[3] = (GLfloat
) (((GLint
*) p
)[3]);
1564 params
[2] = (GLfloat
) (((GLint
*) p
)[2]);
1567 params
[1] = (GLfloat
) (((GLint
*) p
)[1]);
1570 params
[0] = (GLfloat
) (((GLint
*) p
)[0]);
1574 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1575 params
[i
] = (GLfloat
) v
.value_int_n
.ints
[i
];
1579 params
[3] = (GLfloat
) (((GLuint
*) p
)[3]);
1581 params
[2] = (GLfloat
) (((GLuint
*) p
)[2]);
1583 params
[1] = (GLfloat
) (((GLuint
*) p
)[1]);
1585 params
[0] = (GLfloat
) (((GLuint
*) p
)[0]);
1589 params
[0] = (GLfloat
) (((GLint64
*) p
)[0]);
1593 params
[0] = BOOLEAN_TO_FLOAT(*(GLboolean
*) p
);
1597 m
= *(GLmatrix
**) p
;
1598 for (i
= 0; i
< 16; i
++)
1599 params
[i
] = m
->m
[i
];
1603 m
= *(GLmatrix
**) p
;
1604 for (i
= 0; i
< 16; i
++)
1605 params
[i
] = m
->m
[transpose
[i
]];
1616 shift
= d
->type
- TYPE_BIT_0
;
1617 params
[0] = BOOLEAN_TO_FLOAT((*(GLbitfield
*) p
>> shift
) & 1);
1623 _mesa_GetIntegerv(GLenum pname
, GLint
*params
)
1625 const struct value_desc
*d
;
1631 d
= find_value("glGetIntegerv", pname
, &p
, &v
);
1636 params
[0] = d
->offset
;
1640 params
[7] = IROUND(((GLfloat
*) p
)[7]);
1641 params
[6] = IROUND(((GLfloat
*) p
)[6]);
1642 params
[5] = IROUND(((GLfloat
*) p
)[5]);
1643 params
[4] = IROUND(((GLfloat
*) p
)[4]);
1645 params
[3] = IROUND(((GLfloat
*) p
)[3]);
1647 params
[2] = IROUND(((GLfloat
*) p
)[2]);
1649 params
[1] = IROUND(((GLfloat
*) p
)[1]);
1651 params
[0] = IROUND(((GLfloat
*) p
)[0]);
1655 params
[3] = FLOAT_TO_INT(((GLfloat
*) p
)[3]);
1657 params
[2] = FLOAT_TO_INT(((GLfloat
*) p
)[2]);
1659 params
[1] = FLOAT_TO_INT(((GLfloat
*) p
)[1]);
1661 params
[0] = FLOAT_TO_INT(((GLfloat
*) p
)[0]);
1664 case TYPE_DOUBLEN_2
:
1665 params
[1] = FLOAT_TO_INT(((GLdouble
*) p
)[1]);
1667 params
[0] = FLOAT_TO_INT(((GLdouble
*) p
)[0]);
1672 params
[3] = ((GLint
*) p
)[3];
1675 params
[2] = ((GLint
*) p
)[2];
1679 params
[1] = ((GLint
*) p
)[1];
1683 params
[0] = ((GLint
*) p
)[0];
1687 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1688 params
[i
] = v
.value_int_n
.ints
[i
];
1692 params
[0] = INT64_TO_INT(((GLint64
*) p
)[0]);
1696 params
[0] = BOOLEAN_TO_INT(*(GLboolean
*) p
);
1700 m
= *(GLmatrix
**) p
;
1701 for (i
= 0; i
< 16; i
++)
1702 params
[i
] = FLOAT_TO_INT(m
->m
[i
]);
1706 m
= *(GLmatrix
**) p
;
1707 for (i
= 0; i
< 16; i
++)
1708 params
[i
] = FLOAT_TO_INT(m
->m
[transpose
[i
]]);
1719 shift
= d
->type
- TYPE_BIT_0
;
1720 params
[0] = (*(GLbitfield
*) p
>> shift
) & 1;
1726 _mesa_GetInteger64v(GLenum pname
, GLint64
*params
)
1728 const struct value_desc
*d
;
1734 d
= find_value("glGetInteger64v", pname
, &p
, &v
);
1739 params
[0] = d
->offset
;
1743 params
[7] = IROUND64(((GLfloat
*) p
)[7]);
1744 params
[6] = IROUND64(((GLfloat
*) p
)[6]);
1745 params
[5] = IROUND64(((GLfloat
*) p
)[5]);
1746 params
[4] = IROUND64(((GLfloat
*) p
)[4]);
1748 params
[3] = IROUND64(((GLfloat
*) p
)[3]);
1750 params
[2] = IROUND64(((GLfloat
*) p
)[2]);
1752 params
[1] = IROUND64(((GLfloat
*) p
)[1]);
1754 params
[0] = IROUND64(((GLfloat
*) p
)[0]);
1758 params
[3] = FLOAT_TO_INT(((GLfloat
*) p
)[3]);
1760 params
[2] = FLOAT_TO_INT(((GLfloat
*) p
)[2]);
1762 params
[1] = FLOAT_TO_INT(((GLfloat
*) p
)[1]);
1764 params
[0] = FLOAT_TO_INT(((GLfloat
*) p
)[0]);
1767 case TYPE_DOUBLEN_2
:
1768 params
[1] = FLOAT_TO_INT(((GLdouble
*) p
)[1]);
1770 params
[0] = FLOAT_TO_INT(((GLdouble
*) p
)[0]);
1774 params
[3] = ((GLint
*) p
)[3];
1776 params
[2] = ((GLint
*) p
)[2];
1779 params
[1] = ((GLint
*) p
)[1];
1782 params
[0] = ((GLint
*) p
)[0];
1786 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1787 params
[i
] = INT_TO_BOOLEAN(v
.value_int_n
.ints
[i
]);
1791 params
[3] = ((GLuint
*) p
)[3];
1793 params
[2] = ((GLuint
*) p
)[2];
1795 params
[1] = ((GLuint
*) p
)[1];
1797 params
[0] = ((GLuint
*) p
)[0];
1801 params
[0] = ((GLint64
*) p
)[0];
1805 params
[0] = ((GLboolean
*) p
)[0];
1809 m
= *(GLmatrix
**) p
;
1810 for (i
= 0; i
< 16; i
++)
1811 params
[i
] = FLOAT_TO_INT64(m
->m
[i
]);
1815 m
= *(GLmatrix
**) p
;
1816 for (i
= 0; i
< 16; i
++)
1817 params
[i
] = FLOAT_TO_INT64(m
->m
[transpose
[i
]]);
1828 shift
= d
->type
- TYPE_BIT_0
;
1829 params
[0] = (*(GLbitfield
*) p
>> shift
) & 1;
1835 _mesa_GetDoublev(GLenum pname
, GLdouble
*params
)
1837 const struct value_desc
*d
;
1843 d
= find_value("glGetDoublev", pname
, &p
, &v
);
1848 params
[0] = d
->offset
;
1852 params
[7] = ((GLfloat
*) p
)[7];
1853 params
[6] = ((GLfloat
*) p
)[6];
1854 params
[5] = ((GLfloat
*) p
)[5];
1855 params
[4] = ((GLfloat
*) p
)[4];
1858 params
[3] = ((GLfloat
*) p
)[3];
1861 params
[2] = ((GLfloat
*) p
)[2];
1864 params
[1] = ((GLfloat
*) p
)[1];
1867 params
[0] = ((GLfloat
*) p
)[0];
1870 case TYPE_DOUBLEN_2
:
1871 params
[1] = ((GLdouble
*) p
)[1];
1873 params
[0] = ((GLdouble
*) p
)[0];
1877 params
[3] = ((GLint
*) p
)[3];
1879 params
[2] = ((GLint
*) p
)[2];
1882 params
[1] = ((GLint
*) p
)[1];
1885 params
[0] = ((GLint
*) p
)[0];
1889 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1890 params
[i
] = v
.value_int_n
.ints
[i
];
1894 params
[3] = ((GLuint
*) p
)[3];
1896 params
[2] = ((GLuint
*) p
)[2];
1898 params
[1] = ((GLuint
*) p
)[1];
1900 params
[0] = ((GLuint
*) p
)[0];
1904 params
[0] = (GLdouble
) (((GLint64
*) p
)[0]);
1908 params
[0] = *(GLboolean
*) p
;
1912 m
= *(GLmatrix
**) p
;
1913 for (i
= 0; i
< 16; i
++)
1914 params
[i
] = m
->m
[i
];
1918 m
= *(GLmatrix
**) p
;
1919 for (i
= 0; i
< 16; i
++)
1920 params
[i
] = m
->m
[transpose
[i
]];
1931 shift
= d
->type
- TYPE_BIT_0
;
1932 params
[0] = (*(GLbitfield
*) p
>> shift
) & 1;
1938 * Convert a GL texture binding enum such as GL_TEXTURE_BINDING_2D
1939 * into the corresponding Mesa texture target index.
1940 * \return TEXTURE_x_INDEX or -1 if binding is invalid
1943 tex_binding_to_index(const struct gl_context
*ctx
, GLenum binding
)
1946 case GL_TEXTURE_BINDING_1D
:
1947 return _mesa_is_desktop_gl(ctx
) ? TEXTURE_1D_INDEX
: -1;
1948 case GL_TEXTURE_BINDING_2D
:
1949 return TEXTURE_2D_INDEX
;
1950 case GL_TEXTURE_BINDING_3D
:
1951 return ctx
->API
!= API_OPENGLES
? TEXTURE_3D_INDEX
: -1;
1952 case GL_TEXTURE_BINDING_CUBE_MAP
:
1953 return ctx
->Extensions
.ARB_texture_cube_map
1954 ? TEXTURE_CUBE_INDEX
: -1;
1955 case GL_TEXTURE_BINDING_RECTANGLE
:
1956 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.NV_texture_rectangle
1957 ? TEXTURE_RECT_INDEX
: -1;
1958 case GL_TEXTURE_BINDING_1D_ARRAY
:
1959 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_array
1960 ? TEXTURE_1D_ARRAY_INDEX
: -1;
1961 case GL_TEXTURE_BINDING_2D_ARRAY
:
1962 return (_mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_array
)
1963 || _mesa_is_gles3(ctx
)
1964 ? TEXTURE_2D_ARRAY_INDEX
: -1;
1965 case GL_TEXTURE_BINDING_BUFFER
:
1966 return (_mesa_has_ARB_texture_buffer_object(ctx
) ||
1967 _mesa_has_OES_texture_buffer(ctx
)) ?
1968 TEXTURE_BUFFER_INDEX
: -1;
1969 case GL_TEXTURE_BINDING_CUBE_MAP_ARRAY
:
1970 return _mesa_has_texture_cube_map_array(ctx
)
1971 ? TEXTURE_CUBE_ARRAY_INDEX
: -1;
1972 case GL_TEXTURE_BINDING_2D_MULTISAMPLE
:
1973 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.ARB_texture_multisample
1974 ? TEXTURE_2D_MULTISAMPLE_INDEX
: -1;
1975 case GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY
:
1976 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.ARB_texture_multisample
1977 ? TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX
: -1;
1983 static enum value_type
1984 find_value_indexed(const char *func
, GLenum pname
, GLuint index
, union value
*v
)
1986 GET_CURRENT_CONTEXT(ctx
);
1991 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1993 if (!ctx
->Extensions
.EXT_draw_buffers2
)
1995 v
->value_int
= (ctx
->Color
.BlendEnabled
>> index
) & 1;
2000 case GL_BLEND_SRC_RGB
:
2001 if (index
>= ctx
->Const
.MaxDrawBuffers
)
2003 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
2005 v
->value_int
= ctx
->Color
.Blend
[index
].SrcRGB
;
2007 case GL_BLEND_SRC_ALPHA
:
2008 if (index
>= ctx
->Const
.MaxDrawBuffers
)
2010 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
2012 v
->value_int
= ctx
->Color
.Blend
[index
].SrcA
;
2016 case GL_BLEND_DST_RGB
:
2017 if (index
>= ctx
->Const
.MaxDrawBuffers
)
2019 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
2021 v
->value_int
= ctx
->Color
.Blend
[index
].DstRGB
;
2023 case GL_BLEND_DST_ALPHA
:
2024 if (index
>= ctx
->Const
.MaxDrawBuffers
)
2026 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
2028 v
->value_int
= ctx
->Color
.Blend
[index
].DstA
;
2030 case GL_BLEND_EQUATION_RGB
:
2031 if (index
>= ctx
->Const
.MaxDrawBuffers
)
2033 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
2035 v
->value_int
= ctx
->Color
.Blend
[index
].EquationRGB
;
2037 case GL_BLEND_EQUATION_ALPHA
:
2038 if (index
>= ctx
->Const
.MaxDrawBuffers
)
2040 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
2042 v
->value_int
= ctx
->Color
.Blend
[index
].EquationA
;
2045 case GL_COLOR_WRITEMASK
:
2046 if (index
>= ctx
->Const
.MaxDrawBuffers
)
2048 if (!ctx
->Extensions
.EXT_draw_buffers2
)
2050 v
->value_int_4
[0] = ctx
->Color
.ColorMask
[index
][RCOMP
] ? 1 : 0;
2051 v
->value_int_4
[1] = ctx
->Color
.ColorMask
[index
][GCOMP
] ? 1 : 0;
2052 v
->value_int_4
[2] = ctx
->Color
.ColorMask
[index
][BCOMP
] ? 1 : 0;
2053 v
->value_int_4
[3] = ctx
->Color
.ColorMask
[index
][ACOMP
] ? 1 : 0;
2056 case GL_SCISSOR_BOX
:
2057 if (index
>= ctx
->Const
.MaxViewports
)
2059 v
->value_int_4
[0] = ctx
->Scissor
.ScissorArray
[index
].X
;
2060 v
->value_int_4
[1] = ctx
->Scissor
.ScissorArray
[index
].Y
;
2061 v
->value_int_4
[2] = ctx
->Scissor
.ScissorArray
[index
].Width
;
2062 v
->value_int_4
[3] = ctx
->Scissor
.ScissorArray
[index
].Height
;
2065 case GL_WINDOW_RECTANGLE_EXT
:
2066 if (!ctx
->Extensions
.EXT_window_rectangles
)
2068 if (index
>= ctx
->Const
.MaxWindowRectangles
)
2070 v
->value_int_4
[0] = ctx
->Scissor
.WindowRects
[index
].X
;
2071 v
->value_int_4
[1] = ctx
->Scissor
.WindowRects
[index
].Y
;
2072 v
->value_int_4
[2] = ctx
->Scissor
.WindowRects
[index
].Width
;
2073 v
->value_int_4
[3] = ctx
->Scissor
.WindowRects
[index
].Height
;
2077 if (index
>= ctx
->Const
.MaxViewports
)
2079 v
->value_float_4
[0] = ctx
->ViewportArray
[index
].X
;
2080 v
->value_float_4
[1] = ctx
->ViewportArray
[index
].Y
;
2081 v
->value_float_4
[2] = ctx
->ViewportArray
[index
].Width
;
2082 v
->value_float_4
[3] = ctx
->ViewportArray
[index
].Height
;
2083 return TYPE_FLOAT_4
;
2085 case GL_DEPTH_RANGE
:
2086 if (index
>= ctx
->Const
.MaxViewports
)
2088 v
->value_double_2
[0] = ctx
->ViewportArray
[index
].Near
;
2089 v
->value_double_2
[1] = ctx
->ViewportArray
[index
].Far
;
2090 return TYPE_DOUBLEN_2
;
2092 case GL_TRANSFORM_FEEDBACK_BUFFER_START
:
2093 if (index
>= ctx
->Const
.MaxTransformFeedbackBuffers
)
2095 if (!ctx
->Extensions
.EXT_transform_feedback
)
2097 v
->value_int64
= ctx
->TransformFeedback
.CurrentObject
->Offset
[index
];
2100 case GL_TRANSFORM_FEEDBACK_BUFFER_SIZE
:
2101 if (index
>= ctx
->Const
.MaxTransformFeedbackBuffers
)
2103 if (!ctx
->Extensions
.EXT_transform_feedback
)
2106 = ctx
->TransformFeedback
.CurrentObject
->RequestedSize
[index
];
2109 case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING
:
2110 if (index
>= ctx
->Const
.MaxTransformFeedbackBuffers
)
2112 if (!ctx
->Extensions
.EXT_transform_feedback
)
2114 v
->value_int
= ctx
->TransformFeedback
.CurrentObject
->BufferNames
[index
];
2117 case GL_UNIFORM_BUFFER_BINDING
:
2118 if (index
>= ctx
->Const
.MaxUniformBufferBindings
)
2120 if (!ctx
->Extensions
.ARB_uniform_buffer_object
)
2122 v
->value_int
= ctx
->UniformBufferBindings
[index
].BufferObject
->Name
;
2125 case GL_UNIFORM_BUFFER_START
:
2126 if (index
>= ctx
->Const
.MaxUniformBufferBindings
)
2128 if (!ctx
->Extensions
.ARB_uniform_buffer_object
)
2130 v
->value_int
= ctx
->UniformBufferBindings
[index
].Offset
< 0 ? 0 :
2131 ctx
->UniformBufferBindings
[index
].Offset
;
2134 case GL_UNIFORM_BUFFER_SIZE
:
2135 if (index
>= ctx
->Const
.MaxUniformBufferBindings
)
2137 if (!ctx
->Extensions
.ARB_uniform_buffer_object
)
2139 v
->value_int
= ctx
->UniformBufferBindings
[index
].Size
< 0 ? 0 :
2140 ctx
->UniformBufferBindings
[index
].Size
;
2143 /* ARB_shader_storage_buffer_object */
2144 case GL_SHADER_STORAGE_BUFFER_BINDING
:
2145 if (!ctx
->Extensions
.ARB_shader_storage_buffer_object
)
2147 if (index
>= ctx
->Const
.MaxShaderStorageBufferBindings
)
2149 v
->value_int
= ctx
->ShaderStorageBufferBindings
[index
].BufferObject
->Name
;
2152 case GL_SHADER_STORAGE_BUFFER_START
:
2153 if (!ctx
->Extensions
.ARB_shader_storage_buffer_object
)
2155 if (index
>= ctx
->Const
.MaxShaderStorageBufferBindings
)
2157 v
->value_int
= ctx
->ShaderStorageBufferBindings
[index
].Offset
< 0 ? 0 :
2158 ctx
->ShaderStorageBufferBindings
[index
].Offset
;
2161 case GL_SHADER_STORAGE_BUFFER_SIZE
:
2162 if (!ctx
->Extensions
.ARB_shader_storage_buffer_object
)
2164 if (index
>= ctx
->Const
.MaxShaderStorageBufferBindings
)
2166 v
->value_int
= ctx
->ShaderStorageBufferBindings
[index
].Size
< 0 ? 0 :
2167 ctx
->ShaderStorageBufferBindings
[index
].Size
;
2170 /* ARB_texture_multisample / GL3.2 */
2171 case GL_SAMPLE_MASK_VALUE
:
2174 if (!ctx
->Extensions
.ARB_texture_multisample
)
2176 v
->value_int
= ctx
->Multisample
.SampleMaskValue
;
2179 case GL_ATOMIC_COUNTER_BUFFER_BINDING
:
2180 if (!ctx
->Extensions
.ARB_shader_atomic_counters
)
2182 if (index
>= ctx
->Const
.MaxAtomicBufferBindings
)
2184 v
->value_int
= ctx
->AtomicBufferBindings
[index
].BufferObject
->Name
;
2187 case GL_ATOMIC_COUNTER_BUFFER_START
:
2188 if (!ctx
->Extensions
.ARB_shader_atomic_counters
)
2190 if (index
>= ctx
->Const
.MaxAtomicBufferBindings
)
2192 v
->value_int64
= ctx
->AtomicBufferBindings
[index
].Offset
;
2195 case GL_ATOMIC_COUNTER_BUFFER_SIZE
:
2196 if (!ctx
->Extensions
.ARB_shader_atomic_counters
)
2198 if (index
>= ctx
->Const
.MaxAtomicBufferBindings
)
2200 v
->value_int64
= ctx
->AtomicBufferBindings
[index
].Size
;
2203 case GL_VERTEX_BINDING_DIVISOR
:
2204 if ((!_mesa_is_desktop_gl(ctx
) || !ctx
->Extensions
.ARB_instanced_arrays
) &&
2205 !_mesa_is_gles31(ctx
))
2207 if (index
>= ctx
->Const
.Program
[MESA_SHADER_VERTEX
].MaxAttribs
)
2209 v
->value_int
= ctx
->Array
.VAO
->BufferBinding
[VERT_ATTRIB_GENERIC(index
)].InstanceDivisor
;
2212 case GL_VERTEX_BINDING_OFFSET
:
2213 if (!_mesa_is_desktop_gl(ctx
) && !_mesa_is_gles31(ctx
))
2215 if (index
>= ctx
->Const
.Program
[MESA_SHADER_VERTEX
].MaxAttribs
)
2217 v
->value_int
= ctx
->Array
.VAO
->BufferBinding
[VERT_ATTRIB_GENERIC(index
)].Offset
;
2220 case GL_VERTEX_BINDING_STRIDE
:
2221 if (!_mesa_is_desktop_gl(ctx
) && !_mesa_is_gles31(ctx
))
2223 if (index
>= ctx
->Const
.Program
[MESA_SHADER_VERTEX
].MaxAttribs
)
2225 v
->value_int
= ctx
->Array
.VAO
->BufferBinding
[VERT_ATTRIB_GENERIC(index
)].Stride
;
2228 case GL_VERTEX_BINDING_BUFFER
:
2229 if (ctx
->API
== API_OPENGLES2
&& ctx
->Version
< 31)
2231 if (index
>= ctx
->Const
.Program
[MESA_SHADER_VERTEX
].MaxAttribs
)
2233 v
->value_int
= ctx
->Array
.VAO
->BufferBinding
[VERT_ATTRIB_GENERIC(index
)].BufferObj
->Name
;
2236 /* ARB_shader_image_load_store */
2237 case GL_IMAGE_BINDING_NAME
: {
2238 struct gl_texture_object
*t
;
2240 if (!ctx
->Extensions
.ARB_shader_image_load_store
)
2242 if (index
>= ctx
->Const
.MaxImageUnits
)
2245 t
= ctx
->ImageUnits
[index
].TexObj
;
2246 v
->value_int
= (t
? t
->Name
: 0);
2250 case GL_IMAGE_BINDING_LEVEL
:
2251 if (!ctx
->Extensions
.ARB_shader_image_load_store
)
2253 if (index
>= ctx
->Const
.MaxImageUnits
)
2256 v
->value_int
= ctx
->ImageUnits
[index
].Level
;
2259 case GL_IMAGE_BINDING_LAYERED
:
2260 if (!ctx
->Extensions
.ARB_shader_image_load_store
)
2262 if (index
>= ctx
->Const
.MaxImageUnits
)
2265 v
->value_int
= ctx
->ImageUnits
[index
].Layered
;
2268 case GL_IMAGE_BINDING_LAYER
:
2269 if (!ctx
->Extensions
.ARB_shader_image_load_store
)
2271 if (index
>= ctx
->Const
.MaxImageUnits
)
2274 v
->value_int
= ctx
->ImageUnits
[index
].Layer
;
2277 case GL_IMAGE_BINDING_ACCESS
:
2278 if (!ctx
->Extensions
.ARB_shader_image_load_store
)
2280 if (index
>= ctx
->Const
.MaxImageUnits
)
2283 v
->value_int
= ctx
->ImageUnits
[index
].Access
;
2286 case GL_IMAGE_BINDING_FORMAT
:
2287 if (!ctx
->Extensions
.ARB_shader_image_load_store
)
2289 if (index
>= ctx
->Const
.MaxImageUnits
)
2292 v
->value_int
= ctx
->ImageUnits
[index
].Format
;
2295 /* ARB_direct_state_access */
2296 case GL_TEXTURE_BINDING_1D
:
2297 case GL_TEXTURE_BINDING_1D_ARRAY
:
2298 case GL_TEXTURE_BINDING_2D
:
2299 case GL_TEXTURE_BINDING_2D_ARRAY
:
2300 case GL_TEXTURE_BINDING_2D_MULTISAMPLE
:
2301 case GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY
:
2302 case GL_TEXTURE_BINDING_3D
:
2303 case GL_TEXTURE_BINDING_BUFFER
:
2304 case GL_TEXTURE_BINDING_CUBE_MAP
:
2305 case GL_TEXTURE_BINDING_CUBE_MAP_ARRAY
:
2306 case GL_TEXTURE_BINDING_RECTANGLE
: {
2309 if (ctx
->API
!= API_OPENGL_CORE
)
2311 target
= tex_binding_to_index(ctx
, pname
);
2314 if (index
>= _mesa_max_tex_unit(ctx
))
2317 v
->value_int
= ctx
->Texture
.Unit
[index
].CurrentTex
[target
]->Name
;
2321 case GL_SAMPLER_BINDING
: {
2322 struct gl_sampler_object
*samp
;
2324 if (ctx
->API
!= API_OPENGL_CORE
)
2326 if (index
>= _mesa_max_tex_unit(ctx
))
2329 samp
= ctx
->Texture
.Unit
[index
].Sampler
;
2330 v
->value_int
= samp
? samp
->Name
: 0;
2334 case GL_MAX_COMPUTE_WORK_GROUP_COUNT
:
2335 if (!_mesa_has_compute_shaders(ctx
))
2339 v
->value_int
= ctx
->Const
.MaxComputeWorkGroupCount
[index
];
2342 case GL_MAX_COMPUTE_WORK_GROUP_SIZE
:
2343 if (!_mesa_has_compute_shaders(ctx
))
2347 v
->value_int
= ctx
->Const
.MaxComputeWorkGroupSize
[index
];
2350 /* ARB_compute_variable_group_size */
2351 case GL_MAX_COMPUTE_VARIABLE_GROUP_SIZE_ARB
:
2352 if (!ctx
->Extensions
.ARB_compute_variable_group_size
)
2356 v
->value_int
= ctx
->Const
.MaxComputeVariableGroupSize
[index
];
2361 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=%s)", func
,
2362 _mesa_enum_to_string(pname
));
2363 return TYPE_INVALID
;
2365 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(pname=%s)", func
,
2366 _mesa_enum_to_string(pname
));
2367 return TYPE_INVALID
;
2371 _mesa_GetBooleani_v( GLenum pname
, GLuint index
, GLboolean
*params
)
2374 enum value_type type
=
2375 find_value_indexed("glGetBooleani_v", pname
, index
, &v
);
2380 params
[0] = INT_TO_BOOLEAN(v
.value_int
);
2384 params
[0] = INT_TO_BOOLEAN(v
.value_int_4
[0]);
2385 params
[1] = INT_TO_BOOLEAN(v
.value_int_4
[1]);
2386 params
[2] = INT_TO_BOOLEAN(v
.value_int_4
[2]);
2387 params
[3] = INT_TO_BOOLEAN(v
.value_int_4
[3]);
2390 params
[0] = INT64_TO_BOOLEAN(v
.value_int64
);
2393 ; /* nothing - GL error was recorded */
2398 _mesa_GetIntegeri_v( GLenum pname
, GLuint index
, GLint
*params
)
2401 enum value_type type
=
2402 find_value_indexed("glGetIntegeri_v", pname
, index
, &v
);
2407 params
[3] = IROUND(v
.value_float_4
[3]);
2410 params
[2] = IROUND(v
.value_float_4
[2]);
2413 params
[1] = IROUND(v
.value_float_4
[1]);
2416 params
[0] = IROUND(v
.value_float_4
[0]);
2419 case TYPE_DOUBLEN_2
:
2420 params
[1] = IROUND(v
.value_double_2
[1]);
2422 params
[0] = IROUND(v
.value_double_2
[0]);
2427 params
[0] = v
.value_int
;
2431 params
[0] = v
.value_int_4
[0];
2432 params
[1] = v
.value_int_4
[1];
2433 params
[2] = v
.value_int_4
[2];
2434 params
[3] = v
.value_int_4
[3];
2437 params
[0] = INT64_TO_INT(v
.value_int64
);
2440 ; /* nothing - GL error was recorded */
2445 _mesa_GetInteger64i_v( GLenum pname
, GLuint index
, GLint64
*params
)
2448 enum value_type type
=
2449 find_value_indexed("glGetInteger64i_v", pname
, index
, &v
);
2453 params
[0] = v
.value_int
;
2456 params
[0] = v
.value_int_4
[0];
2457 params
[1] = v
.value_int_4
[1];
2458 params
[2] = v
.value_int_4
[2];
2459 params
[3] = v
.value_int_4
[3];
2462 params
[0] = (GLuint
) v
.value_int
;
2465 params
[0] = (GLuint
) v
.value_int_4
[0];
2466 params
[1] = (GLuint
) v
.value_int_4
[1];
2467 params
[2] = (GLuint
) v
.value_int_4
[2];
2468 params
[3] = (GLuint
) v
.value_int_4
[3];
2471 params
[0] = v
.value_int64
;
2474 ; /* nothing - GL error was recorded */
2479 _mesa_GetFloati_v(GLenum pname
, GLuint index
, GLfloat
*params
)
2484 enum value_type type
=
2485 find_value_indexed("glGetFloati_v", pname
, index
, &v
);
2490 params
[3] = v
.value_float_4
[3];
2493 params
[2] = v
.value_float_4
[2];
2496 params
[1] = v
.value_float_4
[1];
2499 params
[0] = v
.value_float_4
[0];
2502 case TYPE_DOUBLEN_2
:
2503 params
[1] = (GLfloat
) v
.value_double_2
[1];
2505 params
[0] = (GLfloat
) v
.value_double_2
[0];
2509 params
[3] = (GLfloat
) v
.value_int_4
[3];
2511 params
[2] = (GLfloat
) v
.value_int_4
[2];
2514 params
[1] = (GLfloat
) v
.value_int_4
[1];
2517 params
[0] = (GLfloat
) v
.value_int_4
[0];
2521 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
2522 params
[i
] = (GLfloat
) v
.value_int_n
.ints
[i
];
2526 params
[3] = (GLfloat
) ((GLuint
) v
.value_int_4
[3]);
2528 params
[2] = (GLfloat
) ((GLuint
) v
.value_int_4
[2]);
2530 params
[1] = (GLfloat
) ((GLuint
) v
.value_int_4
[1]);
2532 params
[0] = (GLfloat
) ((GLuint
) v
.value_int_4
[0]);
2536 params
[0] = (GLfloat
) v
.value_int64
;
2540 params
[0] = BOOLEAN_TO_FLOAT(v
.value_bool
);
2544 m
= *(GLmatrix
**) &v
;
2545 for (i
= 0; i
< 16; i
++)
2546 params
[i
] = m
->m
[i
];
2550 m
= *(GLmatrix
**) &v
;
2551 for (i
= 0; i
< 16; i
++)
2552 params
[i
] = m
->m
[transpose
[i
]];
2561 _mesa_GetDoublei_v(GLenum pname
, GLuint index
, GLdouble
*params
)
2566 enum value_type type
=
2567 find_value_indexed("glGetDoublei_v", pname
, index
, &v
);
2572 params
[3] = (GLdouble
) v
.value_float_4
[3];
2575 params
[2] = (GLdouble
) v
.value_float_4
[2];
2578 params
[1] = (GLdouble
) v
.value_float_4
[1];
2581 params
[0] = (GLdouble
) v
.value_float_4
[0];
2584 case TYPE_DOUBLEN_2
:
2585 params
[1] = v
.value_double_2
[1];
2587 params
[0] = v
.value_double_2
[0];
2591 params
[3] = (GLdouble
) v
.value_int_4
[3];
2593 params
[2] = (GLdouble
) v
.value_int_4
[2];
2596 params
[1] = (GLdouble
) v
.value_int_4
[1];
2599 params
[0] = (GLdouble
) v
.value_int_4
[0];
2603 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
2604 params
[i
] = (GLdouble
) v
.value_int_n
.ints
[i
];
2608 params
[3] = (GLdouble
) ((GLuint
) v
.value_int_4
[3]);
2610 params
[2] = (GLdouble
) ((GLuint
) v
.value_int_4
[2]);
2612 params
[1] = (GLdouble
) ((GLuint
) v
.value_int_4
[1]);
2614 params
[0] = (GLdouble
) ((GLuint
) v
.value_int_4
[0]);
2618 params
[0] = (GLdouble
) v
.value_int64
;
2622 params
[0] = (GLdouble
) BOOLEAN_TO_FLOAT(v
.value_bool
);
2626 m
= *(GLmatrix
**) &v
;
2627 for (i
= 0; i
< 16; i
++)
2628 params
[i
] = (GLdouble
) m
->m
[i
];
2632 m
= *(GLmatrix
**) &v
;
2633 for (i
= 0; i
< 16; i
++)
2634 params
[i
] = (GLdouble
) m
->m
[transpose
[i
]];
2643 _mesa_GetFixedv(GLenum pname
, GLfixed
*params
)
2645 const struct value_desc
*d
;
2651 d
= find_value("glGetDoublev", pname
, &p
, &v
);
2656 params
[0] = INT_TO_FIXED(d
->offset
);
2661 params
[3] = FLOAT_TO_FIXED(((GLfloat
*) p
)[3]);
2664 params
[2] = FLOAT_TO_FIXED(((GLfloat
*) p
)[2]);
2667 params
[1] = FLOAT_TO_FIXED(((GLfloat
*) p
)[1]);
2670 params
[0] = FLOAT_TO_FIXED(((GLfloat
*) p
)[0]);
2673 case TYPE_DOUBLEN_2
:
2674 params
[1] = FLOAT_TO_FIXED(((GLdouble
*) p
)[1]);
2676 params
[0] = FLOAT_TO_FIXED(((GLdouble
*) p
)[0]);
2681 params
[3] = INT_TO_FIXED(((GLint
*) p
)[3]);
2684 params
[2] = INT_TO_FIXED(((GLint
*) p
)[2]);
2688 params
[1] = INT_TO_FIXED(((GLint
*) p
)[1]);
2692 params
[0] = INT_TO_FIXED(((GLint
*) p
)[0]);
2696 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
2697 params
[i
] = INT_TO_FIXED(v
.value_int_n
.ints
[i
]);
2701 params
[0] = ((GLint64
*) p
)[0];
2705 params
[0] = BOOLEAN_TO_FIXED(((GLboolean
*) p
)[0]);
2709 m
= *(GLmatrix
**) p
;
2710 for (i
= 0; i
< 16; i
++)
2711 params
[i
] = FLOAT_TO_FIXED(m
->m
[i
]);
2715 m
= *(GLmatrix
**) p
;
2716 for (i
= 0; i
< 16; i
++)
2717 params
[i
] = FLOAT_TO_FIXED(m
->m
[transpose
[i
]]);
2728 shift
= d
->type
- TYPE_BIT_0
;
2729 params
[0] = BOOLEAN_TO_FIXED((*(GLbitfield
*) p
>> shift
) & 1);