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)
125 enum value_location
{
145 EXTRA_NEW_FRAG_CLAMP
,
146 EXTRA_VALID_DRAW_BUFFER
,
147 EXTRA_VALID_TEXTURE_UNIT
,
148 EXTRA_VALID_CLIP_DISTANCE
,
152 EXTRA_EXT_ATOMICS_GS
,
153 EXTRA_EXT_SHADER_IMAGE_GS
,
154 EXTRA_EXT_ATOMICS_TESS
,
155 EXTRA_EXT_SHADER_IMAGE_TESS
,
157 EXTRA_EXT_FB_NO_ATTACH_GS
,
161 #define NO_EXTRA NULL
166 GLubyte location
; /**< enum value_location */
167 GLubyte type
; /**< enum value_type */
174 GLfloat value_float_4
[4];
175 GLdouble value_double_2
[2];
176 GLmatrix
*value_matrix
;
178 GLint value_int_4
[4];
182 /* Sigh, see GL_COMPRESSED_TEXTURE_FORMATS_ARB handling */
186 GLboolean value_bool
;
189 #define BUFFER_FIELD(field, type) \
190 LOC_BUFFER, type, offsetof(struct gl_framebuffer, field)
191 #define CONTEXT_FIELD(field, type) \
192 LOC_CONTEXT, type, offsetof(struct gl_context, field)
193 #define ARRAY_FIELD(field, type) \
194 LOC_ARRAY, type, offsetof(struct gl_vertex_array_object, field)
195 #undef CONST /* already defined through windows.h */
196 #define CONST(value) \
197 LOC_CONTEXT, TYPE_CONST, value
199 #define BUFFER_INT(field) BUFFER_FIELD(field, TYPE_INT)
200 #define BUFFER_ENUM(field) BUFFER_FIELD(field, TYPE_ENUM)
201 #define BUFFER_BOOL(field) BUFFER_FIELD(field, TYPE_BOOLEAN)
203 #define CONTEXT_INT(field) CONTEXT_FIELD(field, TYPE_INT)
204 #define CONTEXT_INT2(field) CONTEXT_FIELD(field, TYPE_INT_2)
205 #define CONTEXT_INT64(field) CONTEXT_FIELD(field, TYPE_INT64)
206 #define CONTEXT_ENUM(field) CONTEXT_FIELD(field, TYPE_ENUM)
207 #define CONTEXT_ENUM2(field) CONTEXT_FIELD(field, TYPE_ENUM_2)
208 #define CONTEXT_BOOL(field) CONTEXT_FIELD(field, TYPE_BOOLEAN)
209 #define CONTEXT_BIT0(field) CONTEXT_FIELD(field, TYPE_BIT_0)
210 #define CONTEXT_BIT1(field) CONTEXT_FIELD(field, TYPE_BIT_1)
211 #define CONTEXT_BIT2(field) CONTEXT_FIELD(field, TYPE_BIT_2)
212 #define CONTEXT_BIT3(field) CONTEXT_FIELD(field, TYPE_BIT_3)
213 #define CONTEXT_BIT4(field) CONTEXT_FIELD(field, TYPE_BIT_4)
214 #define CONTEXT_BIT5(field) CONTEXT_FIELD(field, TYPE_BIT_5)
215 #define CONTEXT_BIT6(field) CONTEXT_FIELD(field, TYPE_BIT_6)
216 #define CONTEXT_BIT7(field) CONTEXT_FIELD(field, TYPE_BIT_7)
217 #define CONTEXT_FLOAT(field) CONTEXT_FIELD(field, TYPE_FLOAT)
218 #define CONTEXT_FLOAT2(field) CONTEXT_FIELD(field, TYPE_FLOAT_2)
219 #define CONTEXT_FLOAT3(field) CONTEXT_FIELD(field, TYPE_FLOAT_3)
220 #define CONTEXT_FLOAT4(field) CONTEXT_FIELD(field, TYPE_FLOAT_4)
221 #define CONTEXT_MATRIX(field) CONTEXT_FIELD(field, TYPE_MATRIX)
222 #define CONTEXT_MATRIX_T(field) CONTEXT_FIELD(field, TYPE_MATRIX_T)
224 #define ARRAY_INT(field) ARRAY_FIELD(field, TYPE_INT)
225 #define ARRAY_ENUM(field) ARRAY_FIELD(field, TYPE_ENUM)
226 #define ARRAY_BOOL(field) ARRAY_FIELD(field, TYPE_BOOLEAN)
229 offsetof(struct gl_extensions, f)
231 #define EXTRA_EXT(e) \
232 static const int extra_##e[] = { \
236 #define EXTRA_EXT2(e1, e2) \
237 static const int extra_##e1##_##e2[] = { \
238 EXT(e1), EXT(e2), EXTRA_END \
241 /* The 'extra' mechanism is a way to specify extra checks (such as
242 * extensions or specific gl versions) or actions (flush current, new
243 * buffers) that we need to do before looking up an enum. We need to
244 * declare them all up front so we can refer to them in the value_desc
247 * Each EXTRA_ will be executed. For EXTRA_* enums of extensions and API
248 * versions, listing multiple ones in an array means an error will be thrown
249 * only if none of them are available. If you need to check for "AND"
250 * behavior, you would need to make a custom EXTRA_ enum.
253 static const int extra_new_buffers
[] = {
258 static const int extra_new_frag_clamp
[] = {
259 EXTRA_NEW_FRAG_CLAMP
,
263 static const int extra_valid_draw_buffer
[] = {
264 EXTRA_VALID_DRAW_BUFFER
,
268 static const int extra_valid_texture_unit
[] = {
269 EXTRA_VALID_TEXTURE_UNIT
,
273 static const int extra_valid_clip_distance
[] = {
274 EXTRA_VALID_CLIP_DISTANCE
,
278 static const int extra_flush_current_valid_texture_unit
[] = {
280 EXTRA_VALID_TEXTURE_UNIT
,
284 static const int extra_flush_current
[] = {
289 static const int extra_EXT_texture_integer_and_new_buffers
[] = {
290 EXT(EXT_texture_integer
),
295 static const int extra_GLSL_130_es3
[] = {
301 static const int extra_texture_buffer_object
[] = {
304 EXT(ARB_texture_buffer_object
),
308 static const int extra_ARB_transform_feedback2_api_es3
[] = {
309 EXT(ARB_transform_feedback2
),
314 static const int extra_ARB_uniform_buffer_object_and_geometry_shader
[] = {
319 static const int extra_ARB_ES2_compatibility_api_es2
[] = {
320 EXT(ARB_ES2_compatibility
),
325 static const int extra_ARB_ES3_compatibility_api_es3
[] = {
326 EXT(ARB_ES3_compatibility
),
331 static const int extra_EXT_framebuffer_sRGB_and_new_buffers
[] = {
332 EXT(EXT_framebuffer_sRGB
),
337 static const int extra_EXT_packed_float
[] = {
338 EXT(EXT_packed_float
),
343 static const int extra_EXT_texture_array_es3
[] = {
344 EXT(EXT_texture_array
),
349 static const int extra_ARB_shader_atomic_counters_and_geometry_shader
[] = {
350 EXTRA_EXT_ATOMICS_GS
,
354 static const int extra_ARB_shader_image_load_store_and_geometry_shader
[] = {
355 EXTRA_EXT_SHADER_IMAGE_GS
,
359 static const int extra_ARB_shader_atomic_counters_and_tessellation
[] = {
360 EXTRA_EXT_ATOMICS_TESS
,
364 static const int extra_ARB_shader_image_load_store_and_tessellation
[] = {
365 EXTRA_EXT_SHADER_IMAGE_TESS
,
369 /* HACK: remove when ARB_compute_shader is actually supported */
370 static const int extra_ARB_compute_shader_es31
[] = {
371 EXT(ARB_compute_shader
),
376 static const int extra_ARB_shader_storage_buffer_object_es31
[] = {
377 EXT(ARB_shader_storage_buffer_object
),
382 static const int extra_ARB_shader_storage_buffer_object_and_geometry_shader
[] = {
387 static const int extra_ARB_shader_image_load_store_shader_storage_buffer_object_es31
[] = {
388 EXT(ARB_shader_image_load_store
),
389 EXT(ARB_shader_storage_buffer_object
),
394 static const int extra_ARB_framebuffer_no_attachments_and_geometry_shader
[] = {
395 EXTRA_EXT_FB_NO_ATTACH_GS
,
399 static const int extra_ARB_viewport_array_or_oes_geometry_shader
[] = {
400 EXT(ARB_viewport_array
),
405 static const int extra_ARB_gpu_shader5_or_oes_geometry_shader
[] = {
406 EXT(ARB_gpu_shader5
),
411 static const int extra_ARB_gpu_shader5_or_OES_sample_variables
[] = {
412 EXT(ARB_gpu_shader5
),
413 EXT(OES_sample_variables
),
416 EXTRA_EXT(ARB_texture_cube_map
);
417 EXTRA_EXT(EXT_texture_array
);
418 EXTRA_EXT(NV_fog_distance
);
419 EXTRA_EXT(EXT_texture_filter_anisotropic
);
420 EXTRA_EXT(NV_point_sprite
);
421 EXTRA_EXT(NV_texture_rectangle
);
422 EXTRA_EXT(EXT_stencil_two_side
);
423 EXTRA_EXT(EXT_depth_bounds_test
);
424 EXTRA_EXT(ARB_depth_clamp
);
425 EXTRA_EXT(ATI_fragment_shader
);
426 EXTRA_EXT(EXT_provoking_vertex
);
427 EXTRA_EXT(ARB_fragment_shader
);
428 EXTRA_EXT(ARB_fragment_program
);
429 EXTRA_EXT2(ARB_framebuffer_object
, EXT_framebuffer_multisample
);
430 EXTRA_EXT(ARB_seamless_cube_map
);
432 EXTRA_EXT(ARB_vertex_shader
);
433 EXTRA_EXT(EXT_transform_feedback
);
434 EXTRA_EXT(ARB_transform_feedback3
);
435 EXTRA_EXT(EXT_pixel_buffer_object
);
436 EXTRA_EXT(ARB_vertex_program
);
437 EXTRA_EXT2(NV_point_sprite
, ARB_point_sprite
);
438 EXTRA_EXT2(ARB_vertex_program
, ARB_fragment_program
);
439 EXTRA_EXT(ARB_color_buffer_float
);
440 EXTRA_EXT(EXT_framebuffer_sRGB
);
441 EXTRA_EXT(OES_EGL_image_external
);
442 EXTRA_EXT(ARB_blend_func_extended
);
443 EXTRA_EXT(ARB_uniform_buffer_object
);
444 EXTRA_EXT(ARB_timer_query
);
445 EXTRA_EXT(ARB_texture_cube_map_array
);
446 EXTRA_EXT(ARB_texture_buffer_range
);
447 EXTRA_EXT(ARB_texture_multisample
);
448 EXTRA_EXT(ARB_texture_gather
);
449 EXTRA_EXT(ARB_shader_atomic_counters
);
450 EXTRA_EXT(ARB_draw_indirect
);
451 EXTRA_EXT(ARB_shader_image_load_store
);
452 EXTRA_EXT(ARB_viewport_array
);
453 EXTRA_EXT(ARB_query_buffer_object
);
454 EXTRA_EXT2(ARB_transform_feedback3
, ARB_gpu_shader5
);
455 EXTRA_EXT(INTEL_performance_query
);
456 EXTRA_EXT(ARB_explicit_uniform_location
);
457 EXTRA_EXT(ARB_clip_control
);
458 EXTRA_EXT(EXT_polygon_offset_clamp
);
459 EXTRA_EXT(ARB_framebuffer_no_attachments
);
460 EXTRA_EXT(ARB_tessellation_shader
);
461 EXTRA_EXT(ARB_shader_subroutine
);
462 EXTRA_EXT(ARB_shader_storage_buffer_object
);
463 EXTRA_EXT(ARB_indirect_parameters
);
464 EXTRA_EXT(ATI_meminfo
);
465 EXTRA_EXT(NVX_gpu_memory_info
);
466 EXTRA_EXT(ARB_cull_distance
);
467 EXTRA_EXT(EXT_window_rectangles
);
470 extra_ARB_color_buffer_float_or_glcore
[] = {
471 EXT(ARB_color_buffer_float
),
477 extra_NV_primitive_restart
[] = {
478 EXT(NV_primitive_restart
),
482 static const int extra_version_30
[] = { EXTRA_VERSION_30
, EXTRA_END
};
483 static const int extra_version_31
[] = { EXTRA_VERSION_31
, EXTRA_END
};
484 static const int extra_version_32
[] = { EXTRA_VERSION_32
, EXTRA_END
};
486 static const int extra_gl30_es3
[] = {
492 static const int extra_gl32_es3
[] = {
498 static const int extra_version_32_OES_geometry_shader
[] = {
504 static const int extra_gl40_ARB_sample_shading
[] = {
506 EXT(ARB_sample_shading
),
511 extra_ARB_vertex_program_api_es2
[] = {
512 EXT(ARB_vertex_program
),
517 /* The ReadBuffer get token is valid under either full GL or under
518 * GLES2 if the NV_read_buffer extension is available. */
520 extra_NV_read_buffer_api_gl
[] = {
526 static const int extra_core_ARB_color_buffer_float_and_new_buffers
[] = {
528 EXT(ARB_color_buffer_float
),
533 /* This is the big table describing all the enums we accept in
534 * glGet*v(). The table is partitioned into six parts: enums
535 * understood by all GL APIs (OpenGL, GLES and GLES2), enums shared
536 * between OpenGL and GLES, enums exclusive to GLES, etc for the
537 * remaining combinations. To look up the enums valid in a given API
538 * we will use a hash table specific to that API. These tables are in
539 * turn generated at build time and included through get_hash.h.
542 #include "get_hash.h"
544 /* All we need now is a way to look up the value struct from the enum.
545 * The code generated by gcc for the old generated big switch
546 * statement is a big, balanced, open coded if/else tree, essentially
547 * an unrolled binary search. It would be natural to sort the new
548 * enum table and use bsearch(), but we will use a read-only hash
549 * table instead. bsearch() has a nice guaranteed worst case
550 * performance, but we're also guaranteed to hit that worst case
551 * (log2(n) iterations) for about half the enums. Instead, using an
552 * open addressing hash table, we can find the enum on the first try
553 * for 80% of the enums, 1 collision for 10% and never more than 5
554 * collisions for any enum (typical numbers). And the code is very
555 * simple, even though it feels a little magic. */
558 * Handle irregular enums
560 * Some values don't conform to the "well-known type at context
561 * pointer + offset" pattern, so we have this function to catch all
562 * the corner cases. Typically, it's a computed value or a one-off
563 * pointer to a custom struct or something.
565 * In this case we can't return a pointer to the value, so we'll have
566 * to use the temporary variable 'v' declared back in the calling
567 * glGet*v() function to store the result.
569 * \param ctx the current context
570 * \param d the struct value_desc that describes the enum
571 * \param v pointer to the tmp declared in the calling glGet*v() function
574 find_custom_value(struct gl_context
*ctx
, const struct value_desc
*d
, union value
*v
)
576 struct gl_buffer_object
**buffer_obj
;
577 struct gl_vertex_attrib_array
*array
;
581 case GL_MAJOR_VERSION
:
582 v
->value_int
= ctx
->Version
/ 10;
584 case GL_MINOR_VERSION
:
585 v
->value_int
= ctx
->Version
% 10;
591 case GL_TEXTURE_CUBE_MAP
:
592 case GL_TEXTURE_RECTANGLE_NV
:
593 case GL_TEXTURE_EXTERNAL_OES
:
594 v
->value_bool
= _mesa_IsEnabled(d
->pname
);
597 case GL_LINE_STIPPLE_PATTERN
:
598 /* This is the only GLushort, special case it here by promoting
599 * to an int rather than introducing a new type. */
600 v
->value_int
= ctx
->Line
.StipplePattern
;
603 case GL_CURRENT_RASTER_TEXTURE_COORDS
:
604 unit
= ctx
->Texture
.CurrentUnit
;
605 v
->value_float_4
[0] = ctx
->Current
.RasterTexCoords
[unit
][0];
606 v
->value_float_4
[1] = ctx
->Current
.RasterTexCoords
[unit
][1];
607 v
->value_float_4
[2] = ctx
->Current
.RasterTexCoords
[unit
][2];
608 v
->value_float_4
[3] = ctx
->Current
.RasterTexCoords
[unit
][3];
611 case GL_CURRENT_TEXTURE_COORDS
:
612 unit
= ctx
->Texture
.CurrentUnit
;
613 v
->value_float_4
[0] = ctx
->Current
.Attrib
[VERT_ATTRIB_TEX0
+ unit
][0];
614 v
->value_float_4
[1] = ctx
->Current
.Attrib
[VERT_ATTRIB_TEX0
+ unit
][1];
615 v
->value_float_4
[2] = ctx
->Current
.Attrib
[VERT_ATTRIB_TEX0
+ unit
][2];
616 v
->value_float_4
[3] = ctx
->Current
.Attrib
[VERT_ATTRIB_TEX0
+ unit
][3];
619 case GL_COLOR_WRITEMASK
:
620 v
->value_int_4
[0] = ctx
->Color
.ColorMask
[0][RCOMP
] ? 1 : 0;
621 v
->value_int_4
[1] = ctx
->Color
.ColorMask
[0][GCOMP
] ? 1 : 0;
622 v
->value_int_4
[2] = ctx
->Color
.ColorMask
[0][BCOMP
] ? 1 : 0;
623 v
->value_int_4
[3] = ctx
->Color
.ColorMask
[0][ACOMP
] ? 1 : 0;
627 v
->value_bool
= ctx
->Current
.Attrib
[VERT_ATTRIB_EDGEFLAG
][0] == 1.0F
;
631 v
->value_enum
= ctx
->ReadBuffer
->ColorReadBuffer
;
634 case GL_MAP2_GRID_DOMAIN
:
635 v
->value_float_4
[0] = ctx
->Eval
.MapGrid2u1
;
636 v
->value_float_4
[1] = ctx
->Eval
.MapGrid2u2
;
637 v
->value_float_4
[2] = ctx
->Eval
.MapGrid2v1
;
638 v
->value_float_4
[3] = ctx
->Eval
.MapGrid2v2
;
641 case GL_TEXTURE_STACK_DEPTH
:
642 unit
= ctx
->Texture
.CurrentUnit
;
643 v
->value_int
= ctx
->TextureMatrixStack
[unit
].Depth
+ 1;
645 case GL_TEXTURE_MATRIX
:
646 unit
= ctx
->Texture
.CurrentUnit
;
647 v
->value_matrix
= ctx
->TextureMatrixStack
[unit
].Top
;
650 case GL_TEXTURE_COORD_ARRAY
:
651 case GL_TEXTURE_COORD_ARRAY_SIZE
:
652 case GL_TEXTURE_COORD_ARRAY_TYPE
:
653 case GL_TEXTURE_COORD_ARRAY_STRIDE
:
654 array
= &ctx
->Array
.VAO
->VertexAttrib
[VERT_ATTRIB_TEX(ctx
->Array
.ActiveTexture
)];
655 v
->value_int
= *(GLuint
*) ((char *) array
+ d
->offset
);
658 case GL_ACTIVE_TEXTURE_ARB
:
659 v
->value_int
= GL_TEXTURE0_ARB
+ ctx
->Texture
.CurrentUnit
;
661 case GL_CLIENT_ACTIVE_TEXTURE_ARB
:
662 v
->value_int
= GL_TEXTURE0_ARB
+ ctx
->Array
.ActiveTexture
;
665 case GL_MODELVIEW_STACK_DEPTH
:
666 case GL_PROJECTION_STACK_DEPTH
:
667 v
->value_int
= *(GLint
*) ((char *) ctx
+ d
->offset
) + 1;
670 case GL_MAX_TEXTURE_SIZE
:
671 case GL_MAX_3D_TEXTURE_SIZE
:
672 case GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB
:
673 p
= (GLuint
*) ((char *) ctx
+ d
->offset
);
674 v
->value_int
= 1 << (*p
- 1);
678 v
->value_int_4
[0] = ctx
->Scissor
.ScissorArray
[0].X
;
679 v
->value_int_4
[1] = ctx
->Scissor
.ScissorArray
[0].Y
;
680 v
->value_int_4
[2] = ctx
->Scissor
.ScissorArray
[0].Width
;
681 v
->value_int_4
[3] = ctx
->Scissor
.ScissorArray
[0].Height
;
684 case GL_SCISSOR_TEST
:
685 v
->value_bool
= ctx
->Scissor
.EnableFlags
& 1;
690 ctx
->ListState
.CurrentList
? ctx
->ListState
.CurrentList
->Name
: 0;
693 if (!ctx
->CompileFlag
)
695 else if (ctx
->ExecuteFlag
)
696 v
->value_enum
= GL_COMPILE_AND_EXECUTE
;
698 v
->value_enum
= GL_COMPILE
;
702 v
->value_float_4
[0] = ctx
->ViewportArray
[0].X
;
703 v
->value_float_4
[1] = ctx
->ViewportArray
[0].Y
;
704 v
->value_float_4
[2] = ctx
->ViewportArray
[0].Width
;
705 v
->value_float_4
[3] = ctx
->ViewportArray
[0].Height
;
709 v
->value_double_2
[0] = ctx
->ViewportArray
[0].Near
;
710 v
->value_double_2
[1] = ctx
->ViewportArray
[0].Far
;
713 case GL_ACTIVE_STENCIL_FACE_EXT
:
714 v
->value_enum
= ctx
->Stencil
.ActiveFace
? GL_BACK
: GL_FRONT
;
717 case GL_STENCIL_FAIL
:
718 v
->value_enum
= ctx
->Stencil
.FailFunc
[ctx
->Stencil
.ActiveFace
];
720 case GL_STENCIL_FUNC
:
721 v
->value_enum
= ctx
->Stencil
.Function
[ctx
->Stencil
.ActiveFace
];
723 case GL_STENCIL_PASS_DEPTH_FAIL
:
724 v
->value_enum
= ctx
->Stencil
.ZFailFunc
[ctx
->Stencil
.ActiveFace
];
726 case GL_STENCIL_PASS_DEPTH_PASS
:
727 v
->value_enum
= ctx
->Stencil
.ZPassFunc
[ctx
->Stencil
.ActiveFace
];
730 v
->value_int
= _mesa_get_stencil_ref(ctx
, ctx
->Stencil
.ActiveFace
);
732 case GL_STENCIL_BACK_REF
:
733 v
->value_int
= _mesa_get_stencil_ref(ctx
, 1);
735 case GL_STENCIL_VALUE_MASK
:
736 v
->value_int
= ctx
->Stencil
.ValueMask
[ctx
->Stencil
.ActiveFace
];
738 case GL_STENCIL_WRITEMASK
:
739 v
->value_int
= ctx
->Stencil
.WriteMask
[ctx
->Stencil
.ActiveFace
];
742 case GL_NUM_EXTENSIONS
:
743 v
->value_int
= _mesa_get_extension_count(ctx
);
746 case GL_IMPLEMENTATION_COLOR_READ_TYPE_OES
:
747 v
->value_int
= _mesa_get_color_read_type(ctx
);
749 case GL_IMPLEMENTATION_COLOR_READ_FORMAT_OES
:
750 v
->value_int
= _mesa_get_color_read_format(ctx
);
753 case GL_CURRENT_MATRIX_STACK_DEPTH_ARB
:
754 v
->value_int
= ctx
->CurrentStack
->Depth
+ 1;
756 case GL_CURRENT_MATRIX_ARB
:
757 case GL_TRANSPOSE_CURRENT_MATRIX_ARB
:
758 v
->value_matrix
= ctx
->CurrentStack
->Top
;
761 case GL_NUM_COMPRESSED_TEXTURE_FORMATS_ARB
:
762 v
->value_int
= _mesa_get_compressed_formats(ctx
, NULL
);
764 case GL_COMPRESSED_TEXTURE_FORMATS_ARB
:
766 _mesa_get_compressed_formats(ctx
, v
->value_int_n
.ints
);
767 assert(v
->value_int_n
.n
<= (int) ARRAY_SIZE(v
->value_int_n
.ints
));
770 case GL_MAX_VARYING_FLOATS_ARB
:
771 v
->value_int
= ctx
->Const
.MaxVarying
* 4;
774 /* Various object names */
776 case GL_TEXTURE_BINDING_1D
:
777 case GL_TEXTURE_BINDING_2D
:
778 case GL_TEXTURE_BINDING_3D
:
779 case GL_TEXTURE_BINDING_1D_ARRAY_EXT
:
780 case GL_TEXTURE_BINDING_2D_ARRAY_EXT
:
781 case GL_TEXTURE_BINDING_CUBE_MAP_ARB
:
782 case GL_TEXTURE_BINDING_RECTANGLE_NV
:
783 case GL_TEXTURE_BINDING_EXTERNAL_OES
:
784 case GL_TEXTURE_BINDING_CUBE_MAP_ARRAY
:
785 case GL_TEXTURE_BINDING_2D_MULTISAMPLE
:
786 case GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY
:
787 unit
= ctx
->Texture
.CurrentUnit
;
789 ctx
->Texture
.Unit
[unit
].CurrentTex
[d
->offset
]->Name
;
792 /* GL_EXT_packed_float */
793 case GL_RGBA_SIGNED_COMPONENTS_EXT
:
795 /* Note: we only check the 0th color attachment. */
796 const struct gl_renderbuffer
*rb
=
797 ctx
->DrawBuffer
->_ColorDrawBuffers
[0];
798 if (rb
&& _mesa_is_format_signed(rb
->Format
)) {
799 /* Issue 17 of GL_EXT_packed_float: If a component (such as
800 * alpha) has zero bits, the component should not be considered
801 * signed and so the bit for the respective component should be
805 _mesa_get_format_bits(rb
->Format
, GL_RED_BITS
);
807 _mesa_get_format_bits(rb
->Format
, GL_GREEN_BITS
);
809 _mesa_get_format_bits(rb
->Format
, GL_BLUE_BITS
);
811 _mesa_get_format_bits(rb
->Format
, GL_ALPHA_BITS
);
813 _mesa_get_format_bits(rb
->Format
, GL_TEXTURE_LUMINANCE_SIZE
);
815 _mesa_get_format_bits(rb
->Format
, GL_TEXTURE_INTENSITY_SIZE
);
817 v
->value_int_4
[0] = r_bits
+ l_bits
+ i_bits
> 0;
818 v
->value_int_4
[1] = g_bits
+ l_bits
+ i_bits
> 0;
819 v
->value_int_4
[2] = b_bits
+ l_bits
+ i_bits
> 0;
820 v
->value_int_4
[3] = a_bits
+ i_bits
> 0;
826 v
->value_int_4
[3] = 0;
831 /* GL_ARB_vertex_buffer_object */
832 case GL_VERTEX_ARRAY_BUFFER_BINDING_ARB
:
833 case GL_NORMAL_ARRAY_BUFFER_BINDING_ARB
:
834 case GL_COLOR_ARRAY_BUFFER_BINDING_ARB
:
835 case GL_INDEX_ARRAY_BUFFER_BINDING_ARB
:
836 case GL_EDGE_FLAG_ARRAY_BUFFER_BINDING_ARB
:
837 case GL_SECONDARY_COLOR_ARRAY_BUFFER_BINDING_ARB
:
838 case GL_FOG_COORDINATE_ARRAY_BUFFER_BINDING_ARB
:
839 buffer_obj
= (struct gl_buffer_object
**)
840 ((char *) ctx
->Array
.VAO
+ d
->offset
);
841 v
->value_int
= (*buffer_obj
)->Name
;
843 case GL_ARRAY_BUFFER_BINDING_ARB
:
844 v
->value_int
= ctx
->Array
.ArrayBufferObj
->Name
;
846 case GL_TEXTURE_COORD_ARRAY_BUFFER_BINDING_ARB
:
848 ctx
->Array
.VAO
->VertexBinding
[VERT_ATTRIB_TEX(ctx
->Array
.ActiveTexture
)].BufferObj
->Name
;
850 case GL_ELEMENT_ARRAY_BUFFER_BINDING_ARB
:
851 v
->value_int
= ctx
->Array
.VAO
->IndexBufferObj
->Name
;
854 /* ARB_vertex_array_bgra */
855 case GL_COLOR_ARRAY_SIZE
:
856 array
= &ctx
->Array
.VAO
->VertexAttrib
[VERT_ATTRIB_COLOR0
];
857 v
->value_int
= array
->Format
== GL_BGRA
? GL_BGRA
: array
->Size
;
859 case GL_SECONDARY_COLOR_ARRAY_SIZE
:
860 array
= &ctx
->Array
.VAO
->VertexAttrib
[VERT_ATTRIB_COLOR1
];
861 v
->value_int
= array
->Format
== GL_BGRA
? GL_BGRA
: array
->Size
;
864 /* ARB_copy_buffer */
865 case GL_COPY_READ_BUFFER
:
866 v
->value_int
= ctx
->CopyReadBuffer
->Name
;
868 case GL_COPY_WRITE_BUFFER
:
869 v
->value_int
= ctx
->CopyWriteBuffer
->Name
;
872 case GL_PIXEL_PACK_BUFFER_BINDING_EXT
:
873 v
->value_int
= ctx
->Pack
.BufferObj
->Name
;
875 case GL_PIXEL_UNPACK_BUFFER_BINDING_EXT
:
876 v
->value_int
= ctx
->Unpack
.BufferObj
->Name
;
878 case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING
:
879 v
->value_int
= ctx
->TransformFeedback
.CurrentBuffer
->Name
;
881 case GL_TRANSFORM_FEEDBACK_BUFFER_PAUSED
:
882 v
->value_int
= ctx
->TransformFeedback
.CurrentObject
->Paused
;
884 case GL_TRANSFORM_FEEDBACK_BUFFER_ACTIVE
:
885 v
->value_int
= ctx
->TransformFeedback
.CurrentObject
->Active
;
887 case GL_TRANSFORM_FEEDBACK_BINDING
:
888 v
->value_int
= ctx
->TransformFeedback
.CurrentObject
->Name
;
890 case GL_CURRENT_PROGRAM
:
891 /* The Changelog of the ARB_separate_shader_objects spec says:
893 * 24 25 Jul 2011 pbrown Remove the language erroneously deleting
894 * CURRENT_PROGRAM. In the EXT extension, this
895 * token was aliased to ACTIVE_PROGRAM_EXT, and
896 * was used to indicate the last program set by
897 * either ActiveProgramEXT or UseProgram. In
898 * the ARB extension, the SSO active programs
899 * are now program pipeline object state and
900 * CURRENT_PROGRAM should still be used to query
901 * the last program set by UseProgram (bug 7822).
904 ctx
->Shader
.ActiveProgram
? ctx
->Shader
.ActiveProgram
->Name
: 0;
906 case GL_READ_FRAMEBUFFER_BINDING_EXT
:
907 v
->value_int
= ctx
->ReadBuffer
->Name
;
909 case GL_RENDERBUFFER_BINDING_EXT
:
911 ctx
->CurrentRenderbuffer
? ctx
->CurrentRenderbuffer
->Name
: 0;
913 case GL_POINT_SIZE_ARRAY_BUFFER_BINDING_OES
:
914 v
->value_int
= ctx
->Array
.VAO
->VertexBinding
[VERT_ATTRIB_POINT_SIZE
].BufferObj
->Name
;
918 if (_mesa_get_clamp_fragment_color(ctx
, ctx
->DrawBuffer
))
919 COPY_4FV(v
->value_float_4
, ctx
->Fog
.Color
);
921 COPY_4FV(v
->value_float_4
, ctx
->Fog
.ColorUnclamped
);
923 case GL_COLOR_CLEAR_VALUE
:
924 if (_mesa_get_clamp_fragment_color(ctx
, ctx
->DrawBuffer
)) {
925 v
->value_float_4
[0] = CLAMP(ctx
->Color
.ClearColor
.f
[0], 0.0F
, 1.0F
);
926 v
->value_float_4
[1] = CLAMP(ctx
->Color
.ClearColor
.f
[1], 0.0F
, 1.0F
);
927 v
->value_float_4
[2] = CLAMP(ctx
->Color
.ClearColor
.f
[2], 0.0F
, 1.0F
);
928 v
->value_float_4
[3] = CLAMP(ctx
->Color
.ClearColor
.f
[3], 0.0F
, 1.0F
);
930 COPY_4FV(v
->value_float_4
, ctx
->Color
.ClearColor
.f
);
932 case GL_BLEND_COLOR_EXT
:
933 if (_mesa_get_clamp_fragment_color(ctx
, ctx
->DrawBuffer
))
934 COPY_4FV(v
->value_float_4
, ctx
->Color
.BlendColor
);
936 COPY_4FV(v
->value_float_4
, ctx
->Color
.BlendColorUnclamped
);
938 case GL_ALPHA_TEST_REF
:
939 if (_mesa_get_clamp_fragment_color(ctx
, ctx
->DrawBuffer
))
940 v
->value_float
= ctx
->Color
.AlphaRef
;
942 v
->value_float
= ctx
->Color
.AlphaRefUnclamped
;
944 case GL_MAX_VERTEX_UNIFORM_VECTORS
:
945 v
->value_int
= ctx
->Const
.Program
[MESA_SHADER_VERTEX
].MaxUniformComponents
/ 4;
948 case GL_MAX_FRAGMENT_UNIFORM_VECTORS
:
949 v
->value_int
= ctx
->Const
.Program
[MESA_SHADER_FRAGMENT
].MaxUniformComponents
/ 4;
952 /* GL_ARB_texture_buffer_object */
953 case GL_TEXTURE_BUFFER_ARB
:
954 v
->value_int
= ctx
->Texture
.BufferObject
->Name
;
956 case GL_TEXTURE_BINDING_BUFFER_ARB
:
957 unit
= ctx
->Texture
.CurrentUnit
;
959 ctx
->Texture
.Unit
[unit
].CurrentTex
[TEXTURE_BUFFER_INDEX
]->Name
;
961 case GL_TEXTURE_BUFFER_DATA_STORE_BINDING_ARB
:
963 struct gl_buffer_object
*buf
=
964 ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
]
965 .CurrentTex
[TEXTURE_BUFFER_INDEX
]->BufferObject
;
966 v
->value_int
= buf
? buf
->Name
: 0;
969 case GL_TEXTURE_BUFFER_FORMAT_ARB
:
970 v
->value_int
= ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
]
971 .CurrentTex
[TEXTURE_BUFFER_INDEX
]->BufferObjectFormat
;
974 /* GL_ARB_sampler_objects */
975 case GL_SAMPLER_BINDING
:
977 struct gl_sampler_object
*samp
=
978 ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
].Sampler
;
979 v
->value_int
= samp
? samp
->Name
: 0;
982 /* GL_ARB_uniform_buffer_object */
983 case GL_UNIFORM_BUFFER_BINDING
:
984 v
->value_int
= ctx
->UniformBuffer
->Name
;
986 /* GL_ARB_shader_storage_buffer_object */
987 case GL_SHADER_STORAGE_BUFFER_BINDING
:
988 v
->value_int
= ctx
->ShaderStorageBuffer
->Name
;
990 /* GL_ARB_query_buffer_object */
991 case GL_QUERY_BUFFER_BINDING
:
992 v
->value_int
= ctx
->QueryBuffer
->Name
;
994 /* GL_ARB_timer_query */
996 if (ctx
->Driver
.GetTimestamp
) {
997 v
->value_int64
= ctx
->Driver
.GetTimestamp(ctx
);
1000 _mesa_problem(ctx
, "driver doesn't implement GetTimestamp");
1004 case GL_DEBUG_OUTPUT
:
1005 case GL_DEBUG_OUTPUT_SYNCHRONOUS
:
1006 case GL_DEBUG_LOGGED_MESSAGES
:
1007 case GL_DEBUG_NEXT_LOGGED_MESSAGE_LENGTH
:
1008 case GL_DEBUG_GROUP_STACK_DEPTH
:
1009 v
->value_int
= _mesa_get_debug_state_int(ctx
, d
->pname
);
1011 /* GL_ARB_shader_atomic_counters */
1012 case GL_ATOMIC_COUNTER_BUFFER_BINDING
:
1013 if (ctx
->AtomicBuffer
) {
1014 v
->value_int
= ctx
->AtomicBuffer
->Name
;
1019 /* GL_ARB_draw_indirect */
1020 case GL_DRAW_INDIRECT_BUFFER_BINDING
:
1021 v
->value_int
= ctx
->DrawIndirectBuffer
->Name
;
1023 /* GL_ARB_indirect_parameters */
1024 case GL_PARAMETER_BUFFER_BINDING_ARB
:
1025 v
->value_int
= ctx
->ParameterBuffer
->Name
;
1027 /* GL_ARB_separate_shader_objects */
1028 case GL_PROGRAM_PIPELINE_BINDING
:
1029 if (ctx
->Pipeline
.Current
) {
1030 v
->value_int
= ctx
->Pipeline
.Current
->Name
;
1035 /* GL_ARB_compute_shader */
1036 case GL_DISPATCH_INDIRECT_BUFFER_BINDING
:
1037 v
->value_int
= ctx
->DispatchIndirectBuffer
->Name
;
1039 /* GL_ARB_multisample */
1041 v
->value_int
= _mesa_geometric_samples(ctx
->DrawBuffer
);
1043 case GL_SAMPLE_BUFFERS
:
1044 v
->value_int
= _mesa_geometric_samples(ctx
->DrawBuffer
) > 0;
1046 /* GL_ATI_meminfo & GL_NVX_gpu_memory_info */
1047 case GL_VBO_FREE_MEMORY_ATI
:
1048 case GL_TEXTURE_FREE_MEMORY_ATI
:
1049 case GL_RENDERBUFFER_FREE_MEMORY_ATI
:
1050 case GL_GPU_MEMORY_INFO_DEDICATED_VIDMEM_NVX
:
1051 case GL_GPU_MEMORY_INFO_TOTAL_AVAILABLE_MEMORY_NVX
:
1052 case GL_GPU_MEMORY_INFO_CURRENT_AVAILABLE_VIDMEM_NVX
:
1053 case GL_GPU_MEMORY_INFO_EVICTION_COUNT_NVX
:
1054 case GL_GPU_MEMORY_INFO_EVICTED_MEMORY_NVX
:
1056 struct gl_memory_info info
;
1058 ctx
->Driver
.QueryMemoryInfo(ctx
, &info
);
1060 if (d
->pname
== GL_GPU_MEMORY_INFO_DEDICATED_VIDMEM_NVX
)
1061 v
->value_int
= info
.total_device_memory
;
1062 else if (d
->pname
== GL_GPU_MEMORY_INFO_TOTAL_AVAILABLE_MEMORY_NVX
)
1063 v
->value_int
= info
.total_device_memory
+
1064 info
.total_staging_memory
;
1065 else if (d
->pname
== GL_GPU_MEMORY_INFO_CURRENT_AVAILABLE_VIDMEM_NVX
)
1066 v
->value_int
= info
.avail_device_memory
;
1067 else if (d
->pname
== GL_GPU_MEMORY_INFO_EVICTION_COUNT_NVX
)
1068 v
->value_int
= info
.nr_device_memory_evictions
;
1069 else if (d
->pname
== GL_GPU_MEMORY_INFO_EVICTED_MEMORY_NVX
)
1070 v
->value_int
= info
.device_memory_evicted
;
1072 /* ATI free memory enums.
1074 * Since the GPU memory is (usually) page-table based, every two
1075 * consecutive elements are equal. From the GL_ATI_meminfo
1078 * "param[0] - total memory free in the pool
1079 * param[1] - largest available free block in the pool
1080 * param[2] - total auxiliary memory free
1081 * param[3] - largest auxiliary free block"
1083 * All three (VBO, TEXTURE, RENDERBUFFER) queries return
1084 * the same numbers here.
1086 v
->value_int_4
[0] = info
.avail_device_memory
;
1087 v
->value_int_4
[1] = info
.avail_device_memory
;
1088 v
->value_int_4
[2] = info
.avail_staging_memory
;
1089 v
->value_int_4
[3] = info
.avail_staging_memory
;
1097 * Check extra constraints on a struct value_desc descriptor
1099 * If a struct value_desc has a non-NULL extra pointer, it means that
1100 * there are a number of extra constraints to check or actions to
1101 * perform. The extras is just an integer array where each integer
1102 * encode different constraints or actions.
1104 * \param ctx current context
1105 * \param func name of calling glGet*v() function for error reporting
1106 * \param d the struct value_desc that has the extra constraints
1108 * \return GL_FALSE if all of the constraints were not satisfied,
1109 * otherwise GL_TRUE.
1112 check_extra(struct gl_context
*ctx
, const char *func
, const struct value_desc
*d
)
1114 const GLuint version
= ctx
->Version
;
1115 GLboolean api_check
= GL_FALSE
;
1116 GLboolean api_found
= GL_FALSE
;
1119 for (e
= d
->extra
; *e
!= EXTRA_END
; e
++) {
1121 case EXTRA_VERSION_30
:
1122 api_check
= GL_TRUE
;
1124 api_found
= GL_TRUE
;
1126 case EXTRA_VERSION_31
:
1127 api_check
= GL_TRUE
;
1129 api_found
= GL_TRUE
;
1131 case EXTRA_VERSION_32
:
1132 api_check
= GL_TRUE
;
1134 api_found
= GL_TRUE
;
1136 case EXTRA_NEW_FRAG_CLAMP
:
1137 if (ctx
->NewState
& (_NEW_BUFFERS
| _NEW_FRAG_CLAMP
))
1138 _mesa_update_state(ctx
);
1141 api_check
= GL_TRUE
;
1142 if (ctx
->API
== API_OPENGLES2
)
1143 api_found
= GL_TRUE
;
1146 api_check
= GL_TRUE
;
1147 if (_mesa_is_gles3(ctx
))
1148 api_found
= GL_TRUE
;
1150 case EXTRA_API_ES31
:
1151 api_check
= GL_TRUE
;
1152 if (_mesa_is_gles31(ctx
))
1153 api_found
= GL_TRUE
;
1156 api_check
= GL_TRUE
;
1157 if (_mesa_is_desktop_gl(ctx
))
1158 api_found
= GL_TRUE
;
1160 case EXTRA_API_GL_CORE
:
1161 api_check
= GL_TRUE
;
1162 if (ctx
->API
== API_OPENGL_CORE
)
1163 api_found
= GL_TRUE
;
1165 case EXTRA_NEW_BUFFERS
:
1166 if (ctx
->NewState
& _NEW_BUFFERS
)
1167 _mesa_update_state(ctx
);
1169 case EXTRA_FLUSH_CURRENT
:
1170 FLUSH_CURRENT(ctx
, 0);
1172 case EXTRA_VALID_DRAW_BUFFER
:
1173 if (d
->pname
- GL_DRAW_BUFFER0_ARB
>= ctx
->Const
.MaxDrawBuffers
) {
1174 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(draw buffer %u)",
1175 func
, d
->pname
- GL_DRAW_BUFFER0_ARB
);
1179 case EXTRA_VALID_TEXTURE_UNIT
:
1180 if (ctx
->Texture
.CurrentUnit
>= ctx
->Const
.MaxTextureCoordUnits
) {
1181 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(texture %u)",
1182 func
, ctx
->Texture
.CurrentUnit
);
1186 case EXTRA_VALID_CLIP_DISTANCE
:
1187 if (d
->pname
- GL_CLIP_DISTANCE0
>= ctx
->Const
.MaxClipPlanes
) {
1188 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(clip distance %u)",
1189 func
, d
->pname
- GL_CLIP_DISTANCE0
);
1193 case EXTRA_GLSL_130
:
1194 api_check
= GL_TRUE
;
1195 if (ctx
->Const
.GLSLVersion
>= 130)
1196 api_found
= GL_TRUE
;
1198 case EXTRA_EXT_UBO_GS
:
1199 api_check
= GL_TRUE
;
1200 if (ctx
->Extensions
.ARB_uniform_buffer_object
&&
1201 _mesa_has_geometry_shaders(ctx
))
1202 api_found
= GL_TRUE
;
1204 case EXTRA_EXT_ATOMICS_GS
:
1205 api_check
= GL_TRUE
;
1206 if (ctx
->Extensions
.ARB_shader_atomic_counters
&&
1207 _mesa_has_geometry_shaders(ctx
))
1208 api_found
= GL_TRUE
;
1210 case EXTRA_EXT_SHADER_IMAGE_GS
:
1211 api_check
= GL_TRUE
;
1212 if (ctx
->Extensions
.ARB_shader_image_load_store
&&
1213 _mesa_has_geometry_shaders(ctx
))
1214 api_found
= GL_TRUE
;
1216 case EXTRA_EXT_ATOMICS_TESS
:
1217 api_check
= GL_TRUE
;
1218 api_found
= ctx
->Extensions
.ARB_shader_atomic_counters
&&
1219 _mesa_has_tessellation(ctx
);
1221 case EXTRA_EXT_SHADER_IMAGE_TESS
:
1222 api_check
= GL_TRUE
;
1223 api_found
= ctx
->Extensions
.ARB_shader_image_load_store
&&
1224 _mesa_has_tessellation(ctx
);
1226 case EXTRA_EXT_SSBO_GS
:
1227 api_check
= GL_TRUE
;
1228 if (ctx
->Extensions
.ARB_shader_storage_buffer_object
&&
1229 _mesa_has_geometry_shaders(ctx
))
1230 api_found
= GL_TRUE
;
1232 case EXTRA_EXT_FB_NO_ATTACH_GS
:
1233 api_check
= GL_TRUE
;
1234 if (ctx
->Extensions
.ARB_framebuffer_no_attachments
&&
1235 (_mesa_is_desktop_gl(ctx
) ||
1236 _mesa_has_OES_geometry_shader(ctx
)))
1237 api_found
= GL_TRUE
;
1239 case EXTRA_EXT_ES_GS
:
1240 api_check
= GL_TRUE
;
1241 if (_mesa_has_OES_geometry_shader(ctx
))
1242 api_found
= GL_TRUE
;
1246 default: /* *e is a offset into the extension struct */
1247 api_check
= GL_TRUE
;
1248 if (*(GLboolean
*) ((char *) &ctx
->Extensions
+ *e
))
1249 api_found
= GL_TRUE
;
1254 if (api_check
&& !api_found
) {
1255 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=%s)", func
,
1256 _mesa_enum_to_string(d
->pname
));
1263 static const struct value_desc error_value
=
1264 { 0, 0, TYPE_INVALID
, NO_OFFSET
, NO_EXTRA
};
1267 * Find the struct value_desc corresponding to the enum 'pname'.
1269 * We hash the enum value to get an index into the 'table' array,
1270 * which holds the index in the 'values' array of struct value_desc.
1271 * Once we've found the entry, we do the extra checks, if any, then
1272 * look up the value and return a pointer to it.
1274 * If the value has to be computed (for example, it's the result of a
1275 * function call or we need to add 1 to it), we use the tmp 'v' to
1278 * \param func name of glGet*v() func for error reporting
1279 * \param pname the enum value we're looking up
1280 * \param p is were we return the pointer to the value
1281 * \param v a tmp union value variable in the calling glGet*v() function
1283 * \return the struct value_desc corresponding to the enum or a struct
1284 * value_desc of TYPE_INVALID if not found. This lets the calling
1285 * glGet*v() function jump right into a switch statement and
1286 * handle errors there instead of having to check for NULL.
1288 static const struct value_desc
*
1289 find_value(const char *func
, GLenum pname
, void **p
, union value
*v
)
1291 GET_CURRENT_CONTEXT(ctx
);
1292 struct gl_texture_unit
*unit
;
1294 const struct value_desc
*d
;
1298 /* We index into the table_set[] list of per-API hash tables using the API's
1299 * value in the gl_api enum. Since GLES 3 doesn't have an API_OPENGL* enum
1300 * value since it's compatible with GLES2 its entry in table_set[] is at the
1303 STATIC_ASSERT(ARRAY_SIZE(table_set
) == API_OPENGL_LAST
+ 3);
1304 if (_mesa_is_gles3(ctx
)) {
1305 api
= API_OPENGL_LAST
+ 1;
1307 if (_mesa_is_gles31(ctx
)) {
1308 api
= API_OPENGL_LAST
+ 2;
1310 mask
= ARRAY_SIZE(table(api
)) - 1;
1311 hash
= (pname
* prime_factor
);
1313 int idx
= table(api
)[hash
& mask
];
1315 /* If the enum isn't valid, the hash walk ends with index 0,
1316 * pointing to the first entry of values[] which doesn't hold
1317 * any valid enum. */
1318 if (unlikely(idx
== 0)) {
1319 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=%s)", func
,
1320 _mesa_enum_to_string(pname
));
1321 return &error_value
;
1325 if (likely(d
->pname
== pname
))
1331 if (unlikely(d
->extra
&& !check_extra(ctx
, func
, d
)))
1332 return &error_value
;
1334 switch (d
->location
) {
1336 *p
= ((char *) ctx
->DrawBuffer
+ d
->offset
);
1339 *p
= ((char *) ctx
+ d
->offset
);
1342 *p
= ((char *) ctx
->Array
.VAO
+ d
->offset
);
1345 unit
= &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1346 *p
= ((char *) unit
+ d
->offset
);
1349 find_custom_value(ctx
, d
, v
);
1357 /* silence warning */
1358 return &error_value
;
1361 static const int transpose
[] = {
1369 _mesa_GetBooleanv(GLenum pname
, GLboolean
*params
)
1371 const struct value_desc
*d
;
1377 d
= find_value("glGetBooleanv", pname
, &p
, &v
);
1382 params
[0] = INT_TO_BOOLEAN(d
->offset
);
1387 params
[3] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[3]);
1390 params
[2] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[2]);
1393 params
[1] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[1]);
1396 params
[0] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[0]);
1399 case TYPE_DOUBLEN_2
:
1400 params
[1] = FLOAT_TO_BOOLEAN(((GLdouble
*) p
)[1]);
1402 params
[0] = FLOAT_TO_BOOLEAN(((GLdouble
*) p
)[0]);
1406 params
[3] = INT_TO_BOOLEAN(((GLint
*) p
)[3]);
1408 params
[2] = INT_TO_BOOLEAN(((GLint
*) p
)[2]);
1411 params
[1] = INT_TO_BOOLEAN(((GLint
*) p
)[1]);
1414 params
[0] = INT_TO_BOOLEAN(((GLint
*) p
)[0]);
1418 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1419 params
[i
] = INT_TO_BOOLEAN(v
.value_int_n
.ints
[i
]);
1423 params
[0] = INT64_TO_BOOLEAN(((GLint64
*) p
)[0]);
1427 params
[0] = ((GLboolean
*) p
)[0];
1431 m
= *(GLmatrix
**) p
;
1432 for (i
= 0; i
< 16; i
++)
1433 params
[i
] = FLOAT_TO_BOOLEAN(m
->m
[i
]);
1437 m
= *(GLmatrix
**) p
;
1438 for (i
= 0; i
< 16; i
++)
1439 params
[i
] = FLOAT_TO_BOOLEAN(m
->m
[transpose
[i
]]);
1450 shift
= d
->type
- TYPE_BIT_0
;
1451 params
[0] = (*(GLbitfield
*) p
>> shift
) & 1;
1457 _mesa_GetFloatv(GLenum pname
, GLfloat
*params
)
1459 const struct value_desc
*d
;
1465 d
= find_value("glGetFloatv", pname
, &p
, &v
);
1470 params
[0] = (GLfloat
) d
->offset
;
1475 params
[3] = ((GLfloat
*) p
)[3];
1478 params
[2] = ((GLfloat
*) p
)[2];
1481 params
[1] = ((GLfloat
*) p
)[1];
1484 params
[0] = ((GLfloat
*) p
)[0];
1487 case TYPE_DOUBLEN_2
:
1488 params
[1] = (GLfloat
) (((GLdouble
*) p
)[1]);
1490 params
[0] = (GLfloat
) (((GLdouble
*) p
)[0]);
1494 params
[3] = (GLfloat
) (((GLint
*) p
)[3]);
1496 params
[2] = (GLfloat
) (((GLint
*) p
)[2]);
1499 params
[1] = (GLfloat
) (((GLint
*) p
)[1]);
1502 params
[0] = (GLfloat
) (((GLint
*) p
)[0]);
1506 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1507 params
[i
] = INT_TO_FLOAT(v
.value_int_n
.ints
[i
]);
1511 params
[0] = (GLfloat
) (((GLint64
*) p
)[0]);
1515 params
[0] = BOOLEAN_TO_FLOAT(*(GLboolean
*) p
);
1519 m
= *(GLmatrix
**) p
;
1520 for (i
= 0; i
< 16; i
++)
1521 params
[i
] = m
->m
[i
];
1525 m
= *(GLmatrix
**) p
;
1526 for (i
= 0; i
< 16; i
++)
1527 params
[i
] = m
->m
[transpose
[i
]];
1538 shift
= d
->type
- TYPE_BIT_0
;
1539 params
[0] = BOOLEAN_TO_FLOAT((*(GLbitfield
*) p
>> shift
) & 1);
1545 _mesa_GetIntegerv(GLenum pname
, GLint
*params
)
1547 const struct value_desc
*d
;
1553 d
= find_value("glGetIntegerv", pname
, &p
, &v
);
1558 params
[0] = d
->offset
;
1562 params
[3] = IROUND(((GLfloat
*) p
)[3]);
1564 params
[2] = IROUND(((GLfloat
*) p
)[2]);
1566 params
[1] = IROUND(((GLfloat
*) p
)[1]);
1568 params
[0] = IROUND(((GLfloat
*) p
)[0]);
1572 params
[3] = FLOAT_TO_INT(((GLfloat
*) p
)[3]);
1574 params
[2] = FLOAT_TO_INT(((GLfloat
*) p
)[2]);
1576 params
[1] = FLOAT_TO_INT(((GLfloat
*) p
)[1]);
1578 params
[0] = FLOAT_TO_INT(((GLfloat
*) p
)[0]);
1581 case TYPE_DOUBLEN_2
:
1582 params
[1] = FLOAT_TO_INT(((GLdouble
*) p
)[1]);
1584 params
[0] = FLOAT_TO_INT(((GLdouble
*) p
)[0]);
1588 params
[3] = ((GLint
*) p
)[3];
1590 params
[2] = ((GLint
*) p
)[2];
1593 params
[1] = ((GLint
*) p
)[1];
1596 params
[0] = ((GLint
*) p
)[0];
1600 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1601 params
[i
] = v
.value_int_n
.ints
[i
];
1605 params
[0] = INT64_TO_INT(((GLint64
*) p
)[0]);
1609 params
[0] = BOOLEAN_TO_INT(*(GLboolean
*) p
);
1613 m
= *(GLmatrix
**) p
;
1614 for (i
= 0; i
< 16; i
++)
1615 params
[i
] = FLOAT_TO_INT(m
->m
[i
]);
1619 m
= *(GLmatrix
**) p
;
1620 for (i
= 0; i
< 16; i
++)
1621 params
[i
] = FLOAT_TO_INT(m
->m
[transpose
[i
]]);
1632 shift
= d
->type
- TYPE_BIT_0
;
1633 params
[0] = (*(GLbitfield
*) p
>> shift
) & 1;
1639 _mesa_GetInteger64v(GLenum pname
, GLint64
*params
)
1641 const struct value_desc
*d
;
1647 d
= find_value("glGetInteger64v", pname
, &p
, &v
);
1652 params
[0] = d
->offset
;
1656 params
[3] = IROUND64(((GLfloat
*) p
)[3]);
1658 params
[2] = IROUND64(((GLfloat
*) p
)[2]);
1660 params
[1] = IROUND64(((GLfloat
*) p
)[1]);
1662 params
[0] = IROUND64(((GLfloat
*) p
)[0]);
1666 params
[3] = FLOAT_TO_INT(((GLfloat
*) p
)[3]);
1668 params
[2] = FLOAT_TO_INT(((GLfloat
*) p
)[2]);
1670 params
[1] = FLOAT_TO_INT(((GLfloat
*) p
)[1]);
1672 params
[0] = FLOAT_TO_INT(((GLfloat
*) p
)[0]);
1675 case TYPE_DOUBLEN_2
:
1676 params
[1] = FLOAT_TO_INT(((GLdouble
*) p
)[1]);
1678 params
[0] = FLOAT_TO_INT(((GLdouble
*) p
)[0]);
1682 params
[3] = ((GLint
*) p
)[3];
1684 params
[2] = ((GLint
*) p
)[2];
1687 params
[1] = ((GLint
*) p
)[1];
1690 params
[0] = ((GLint
*) p
)[0];
1694 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1695 params
[i
] = INT_TO_BOOLEAN(v
.value_int_n
.ints
[i
]);
1699 params
[0] = ((GLint64
*) p
)[0];
1703 params
[0] = ((GLboolean
*) p
)[0];
1707 m
= *(GLmatrix
**) p
;
1708 for (i
= 0; i
< 16; i
++)
1709 params
[i
] = FLOAT_TO_INT64(m
->m
[i
]);
1713 m
= *(GLmatrix
**) p
;
1714 for (i
= 0; i
< 16; i
++)
1715 params
[i
] = FLOAT_TO_INT64(m
->m
[transpose
[i
]]);
1726 shift
= d
->type
- TYPE_BIT_0
;
1727 params
[0] = (*(GLbitfield
*) p
>> shift
) & 1;
1733 _mesa_GetDoublev(GLenum pname
, GLdouble
*params
)
1735 const struct value_desc
*d
;
1741 d
= find_value("glGetDoublev", pname
, &p
, &v
);
1746 params
[0] = d
->offset
;
1751 params
[3] = ((GLfloat
*) p
)[3];
1754 params
[2] = ((GLfloat
*) p
)[2];
1757 params
[1] = ((GLfloat
*) p
)[1];
1760 params
[0] = ((GLfloat
*) p
)[0];
1763 case TYPE_DOUBLEN_2
:
1764 params
[1] = ((GLdouble
*) p
)[1];
1766 params
[0] = ((GLdouble
*) p
)[0];
1770 params
[3] = ((GLint
*) p
)[3];
1772 params
[2] = ((GLint
*) p
)[2];
1775 params
[1] = ((GLint
*) p
)[1];
1778 params
[0] = ((GLint
*) p
)[0];
1782 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1783 params
[i
] = v
.value_int_n
.ints
[i
];
1787 params
[0] = (GLdouble
) (((GLint64
*) p
)[0]);
1791 params
[0] = *(GLboolean
*) p
;
1795 m
= *(GLmatrix
**) p
;
1796 for (i
= 0; i
< 16; i
++)
1797 params
[i
] = m
->m
[i
];
1801 m
= *(GLmatrix
**) p
;
1802 for (i
= 0; i
< 16; i
++)
1803 params
[i
] = m
->m
[transpose
[i
]];
1814 shift
= d
->type
- TYPE_BIT_0
;
1815 params
[0] = (*(GLbitfield
*) p
>> shift
) & 1;
1821 * Convert a GL texture binding enum such as GL_TEXTURE_BINDING_2D
1822 * into the corresponding Mesa texture target index.
1823 * \return TEXTURE_x_INDEX or -1 if binding is invalid
1826 tex_binding_to_index(const struct gl_context
*ctx
, GLenum binding
)
1829 case GL_TEXTURE_BINDING_1D
:
1830 return _mesa_is_desktop_gl(ctx
) ? TEXTURE_1D_INDEX
: -1;
1831 case GL_TEXTURE_BINDING_2D
:
1832 return TEXTURE_2D_INDEX
;
1833 case GL_TEXTURE_BINDING_3D
:
1834 return ctx
->API
!= API_OPENGLES
? TEXTURE_3D_INDEX
: -1;
1835 case GL_TEXTURE_BINDING_CUBE_MAP
:
1836 return ctx
->Extensions
.ARB_texture_cube_map
1837 ? TEXTURE_CUBE_INDEX
: -1;
1838 case GL_TEXTURE_BINDING_RECTANGLE
:
1839 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.NV_texture_rectangle
1840 ? TEXTURE_RECT_INDEX
: -1;
1841 case GL_TEXTURE_BINDING_1D_ARRAY
:
1842 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_array
1843 ? TEXTURE_1D_ARRAY_INDEX
: -1;
1844 case GL_TEXTURE_BINDING_2D_ARRAY
:
1845 return (_mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_array
)
1846 || _mesa_is_gles3(ctx
)
1847 ? TEXTURE_2D_ARRAY_INDEX
: -1;
1848 case GL_TEXTURE_BINDING_BUFFER
:
1849 return (_mesa_has_ARB_texture_buffer_object(ctx
) ||
1850 _mesa_has_OES_texture_buffer(ctx
)) ?
1851 TEXTURE_BUFFER_INDEX
: -1;
1852 case GL_TEXTURE_BINDING_CUBE_MAP_ARRAY
:
1853 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.ARB_texture_cube_map_array
1854 ? TEXTURE_CUBE_ARRAY_INDEX
: -1;
1855 case GL_TEXTURE_BINDING_2D_MULTISAMPLE
:
1856 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.ARB_texture_multisample
1857 ? TEXTURE_2D_MULTISAMPLE_INDEX
: -1;
1858 case GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY
:
1859 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.ARB_texture_multisample
1860 ? TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX
: -1;
1866 static enum value_type
1867 find_value_indexed(const char *func
, GLenum pname
, GLuint index
, union value
*v
)
1869 GET_CURRENT_CONTEXT(ctx
);
1874 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1876 if (!ctx
->Extensions
.EXT_draw_buffers2
)
1878 v
->value_int
= (ctx
->Color
.BlendEnabled
>> index
) & 1;
1883 case GL_BLEND_SRC_RGB
:
1884 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1886 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1888 v
->value_int
= ctx
->Color
.Blend
[index
].SrcRGB
;
1890 case GL_BLEND_SRC_ALPHA
:
1891 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1893 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1895 v
->value_int
= ctx
->Color
.Blend
[index
].SrcA
;
1899 case GL_BLEND_DST_RGB
:
1900 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1902 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1904 v
->value_int
= ctx
->Color
.Blend
[index
].DstRGB
;
1906 case GL_BLEND_DST_ALPHA
:
1907 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1909 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1911 v
->value_int
= ctx
->Color
.Blend
[index
].DstA
;
1913 case GL_BLEND_EQUATION_RGB
:
1914 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1916 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1918 v
->value_int
= ctx
->Color
.Blend
[index
].EquationRGB
;
1920 case GL_BLEND_EQUATION_ALPHA
:
1921 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1923 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1925 v
->value_int
= ctx
->Color
.Blend
[index
].EquationA
;
1928 case GL_COLOR_WRITEMASK
:
1929 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1931 if (!ctx
->Extensions
.EXT_draw_buffers2
)
1933 v
->value_int_4
[0] = ctx
->Color
.ColorMask
[index
][RCOMP
] ? 1 : 0;
1934 v
->value_int_4
[1] = ctx
->Color
.ColorMask
[index
][GCOMP
] ? 1 : 0;
1935 v
->value_int_4
[2] = ctx
->Color
.ColorMask
[index
][BCOMP
] ? 1 : 0;
1936 v
->value_int_4
[3] = ctx
->Color
.ColorMask
[index
][ACOMP
] ? 1 : 0;
1939 case GL_SCISSOR_BOX
:
1940 if (index
>= ctx
->Const
.MaxViewports
)
1942 v
->value_int_4
[0] = ctx
->Scissor
.ScissorArray
[index
].X
;
1943 v
->value_int_4
[1] = ctx
->Scissor
.ScissorArray
[index
].Y
;
1944 v
->value_int_4
[2] = ctx
->Scissor
.ScissorArray
[index
].Width
;
1945 v
->value_int_4
[3] = ctx
->Scissor
.ScissorArray
[index
].Height
;
1948 case GL_WINDOW_RECTANGLE_EXT
:
1949 if (!ctx
->Extensions
.EXT_window_rectangles
)
1951 if (index
>= ctx
->Const
.MaxWindowRectangles
)
1953 v
->value_int_4
[0] = ctx
->Scissor
.WindowRects
[index
].X
;
1954 v
->value_int_4
[1] = ctx
->Scissor
.WindowRects
[index
].Y
;
1955 v
->value_int_4
[2] = ctx
->Scissor
.WindowRects
[index
].Width
;
1956 v
->value_int_4
[3] = ctx
->Scissor
.WindowRects
[index
].Height
;
1960 if (index
>= ctx
->Const
.MaxViewports
)
1962 v
->value_float_4
[0] = ctx
->ViewportArray
[index
].X
;
1963 v
->value_float_4
[1] = ctx
->ViewportArray
[index
].Y
;
1964 v
->value_float_4
[2] = ctx
->ViewportArray
[index
].Width
;
1965 v
->value_float_4
[3] = ctx
->ViewportArray
[index
].Height
;
1966 return TYPE_FLOAT_4
;
1968 case GL_DEPTH_RANGE
:
1969 if (index
>= ctx
->Const
.MaxViewports
)
1971 v
->value_double_2
[0] = ctx
->ViewportArray
[index
].Near
;
1972 v
->value_double_2
[1] = ctx
->ViewportArray
[index
].Far
;
1973 return TYPE_DOUBLEN_2
;
1975 case GL_TRANSFORM_FEEDBACK_BUFFER_START
:
1976 if (index
>= ctx
->Const
.MaxTransformFeedbackBuffers
)
1978 if (!ctx
->Extensions
.EXT_transform_feedback
)
1980 v
->value_int64
= ctx
->TransformFeedback
.CurrentObject
->Offset
[index
];
1983 case GL_TRANSFORM_FEEDBACK_BUFFER_SIZE
:
1984 if (index
>= ctx
->Const
.MaxTransformFeedbackBuffers
)
1986 if (!ctx
->Extensions
.EXT_transform_feedback
)
1989 = ctx
->TransformFeedback
.CurrentObject
->RequestedSize
[index
];
1992 case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING
:
1993 if (index
>= ctx
->Const
.MaxTransformFeedbackBuffers
)
1995 if (!ctx
->Extensions
.EXT_transform_feedback
)
1997 v
->value_int
= ctx
->TransformFeedback
.CurrentObject
->BufferNames
[index
];
2000 case GL_UNIFORM_BUFFER_BINDING
:
2001 if (index
>= ctx
->Const
.MaxUniformBufferBindings
)
2003 if (!ctx
->Extensions
.ARB_uniform_buffer_object
)
2005 v
->value_int
= ctx
->UniformBufferBindings
[index
].BufferObject
->Name
;
2008 case GL_UNIFORM_BUFFER_START
:
2009 if (index
>= ctx
->Const
.MaxUniformBufferBindings
)
2011 if (!ctx
->Extensions
.ARB_uniform_buffer_object
)
2013 v
->value_int
= ctx
->UniformBufferBindings
[index
].Offset
< 0 ? 0 :
2014 ctx
->UniformBufferBindings
[index
].Offset
;
2017 case GL_UNIFORM_BUFFER_SIZE
:
2018 if (index
>= ctx
->Const
.MaxUniformBufferBindings
)
2020 if (!ctx
->Extensions
.ARB_uniform_buffer_object
)
2022 v
->value_int
= ctx
->UniformBufferBindings
[index
].Size
< 0 ? 0 :
2023 ctx
->UniformBufferBindings
[index
].Size
;
2026 /* ARB_shader_storage_buffer_object */
2027 case GL_SHADER_STORAGE_BUFFER_BINDING
:
2028 if (!ctx
->Extensions
.ARB_shader_storage_buffer_object
)
2030 if (index
>= ctx
->Const
.MaxShaderStorageBufferBindings
)
2032 v
->value_int
= ctx
->ShaderStorageBufferBindings
[index
].BufferObject
->Name
;
2035 case GL_SHADER_STORAGE_BUFFER_START
:
2036 if (!ctx
->Extensions
.ARB_shader_storage_buffer_object
)
2038 if (index
>= ctx
->Const
.MaxShaderStorageBufferBindings
)
2040 v
->value_int
= ctx
->ShaderStorageBufferBindings
[index
].Offset
< 0 ? 0 :
2041 ctx
->ShaderStorageBufferBindings
[index
].Offset
;
2044 case GL_SHADER_STORAGE_BUFFER_SIZE
:
2045 if (!ctx
->Extensions
.ARB_shader_storage_buffer_object
)
2047 if (index
>= ctx
->Const
.MaxShaderStorageBufferBindings
)
2049 v
->value_int
= ctx
->ShaderStorageBufferBindings
[index
].Size
< 0 ? 0 :
2050 ctx
->ShaderStorageBufferBindings
[index
].Size
;
2053 /* ARB_texture_multisample / GL3.2 */
2054 case GL_SAMPLE_MASK_VALUE
:
2057 if (!ctx
->Extensions
.ARB_texture_multisample
)
2059 v
->value_int
= ctx
->Multisample
.SampleMaskValue
;
2062 case GL_ATOMIC_COUNTER_BUFFER_BINDING
:
2063 if (!ctx
->Extensions
.ARB_shader_atomic_counters
)
2065 if (index
>= ctx
->Const
.MaxAtomicBufferBindings
)
2067 v
->value_int
= ctx
->AtomicBufferBindings
[index
].BufferObject
->Name
;
2070 case GL_ATOMIC_COUNTER_BUFFER_START
:
2071 if (!ctx
->Extensions
.ARB_shader_atomic_counters
)
2073 if (index
>= ctx
->Const
.MaxAtomicBufferBindings
)
2075 v
->value_int64
= ctx
->AtomicBufferBindings
[index
].Offset
;
2078 case GL_ATOMIC_COUNTER_BUFFER_SIZE
:
2079 if (!ctx
->Extensions
.ARB_shader_atomic_counters
)
2081 if (index
>= ctx
->Const
.MaxAtomicBufferBindings
)
2083 v
->value_int64
= ctx
->AtomicBufferBindings
[index
].Size
;
2086 case GL_VERTEX_BINDING_DIVISOR
:
2087 if ((!_mesa_is_desktop_gl(ctx
) || !ctx
->Extensions
.ARB_instanced_arrays
) &&
2088 !_mesa_is_gles31(ctx
))
2090 if (index
>= ctx
->Const
.Program
[MESA_SHADER_VERTEX
].MaxAttribs
)
2092 v
->value_int
= ctx
->Array
.VAO
->VertexBinding
[VERT_ATTRIB_GENERIC(index
)].InstanceDivisor
;
2095 case GL_VERTEX_BINDING_OFFSET
:
2096 if (!_mesa_is_desktop_gl(ctx
) && !_mesa_is_gles31(ctx
))
2098 if (index
>= ctx
->Const
.Program
[MESA_SHADER_VERTEX
].MaxAttribs
)
2100 v
->value_int
= ctx
->Array
.VAO
->VertexBinding
[VERT_ATTRIB_GENERIC(index
)].Offset
;
2103 case GL_VERTEX_BINDING_STRIDE
:
2104 if (!_mesa_is_desktop_gl(ctx
) && !_mesa_is_gles31(ctx
))
2106 if (index
>= ctx
->Const
.Program
[MESA_SHADER_VERTEX
].MaxAttribs
)
2108 v
->value_int
= ctx
->Array
.VAO
->VertexBinding
[VERT_ATTRIB_GENERIC(index
)].Stride
;
2111 case GL_VERTEX_BINDING_BUFFER
:
2112 if (ctx
->API
== API_OPENGLES2
&& ctx
->Version
< 31)
2114 if (index
>= ctx
->Const
.Program
[MESA_SHADER_VERTEX
].MaxAttribs
)
2116 v
->value_int
= ctx
->Array
.VAO
->VertexBinding
[VERT_ATTRIB_GENERIC(index
)].BufferObj
->Name
;
2119 /* ARB_shader_image_load_store */
2120 case GL_IMAGE_BINDING_NAME
: {
2121 struct gl_texture_object
*t
;
2123 if (!ctx
->Extensions
.ARB_shader_image_load_store
)
2125 if (index
>= ctx
->Const
.MaxImageUnits
)
2128 t
= ctx
->ImageUnits
[index
].TexObj
;
2129 v
->value_int
= (t
? t
->Name
: 0);
2133 case GL_IMAGE_BINDING_LEVEL
:
2134 if (!ctx
->Extensions
.ARB_shader_image_load_store
)
2136 if (index
>= ctx
->Const
.MaxImageUnits
)
2139 v
->value_int
= ctx
->ImageUnits
[index
].Level
;
2142 case GL_IMAGE_BINDING_LAYERED
:
2143 if (!ctx
->Extensions
.ARB_shader_image_load_store
)
2145 if (index
>= ctx
->Const
.MaxImageUnits
)
2148 v
->value_int
= ctx
->ImageUnits
[index
].Layered
;
2151 case GL_IMAGE_BINDING_LAYER
:
2152 if (!ctx
->Extensions
.ARB_shader_image_load_store
)
2154 if (index
>= ctx
->Const
.MaxImageUnits
)
2157 v
->value_int
= ctx
->ImageUnits
[index
].Layer
;
2160 case GL_IMAGE_BINDING_ACCESS
:
2161 if (!ctx
->Extensions
.ARB_shader_image_load_store
)
2163 if (index
>= ctx
->Const
.MaxImageUnits
)
2166 v
->value_int
= ctx
->ImageUnits
[index
].Access
;
2169 case GL_IMAGE_BINDING_FORMAT
:
2170 if (!ctx
->Extensions
.ARB_shader_image_load_store
)
2172 if (index
>= ctx
->Const
.MaxImageUnits
)
2175 v
->value_int
= ctx
->ImageUnits
[index
].Format
;
2178 /* ARB_direct_state_access */
2179 case GL_TEXTURE_BINDING_1D
:
2180 case GL_TEXTURE_BINDING_1D_ARRAY
:
2181 case GL_TEXTURE_BINDING_2D
:
2182 case GL_TEXTURE_BINDING_2D_ARRAY
:
2183 case GL_TEXTURE_BINDING_2D_MULTISAMPLE
:
2184 case GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY
:
2185 case GL_TEXTURE_BINDING_3D
:
2186 case GL_TEXTURE_BINDING_BUFFER
:
2187 case GL_TEXTURE_BINDING_CUBE_MAP
:
2188 case GL_TEXTURE_BINDING_CUBE_MAP_ARRAY
:
2189 case GL_TEXTURE_BINDING_RECTANGLE
: {
2192 if (ctx
->API
!= API_OPENGL_CORE
)
2194 target
= tex_binding_to_index(ctx
, pname
);
2197 if (index
>= _mesa_max_tex_unit(ctx
))
2200 v
->value_int
= ctx
->Texture
.Unit
[index
].CurrentTex
[target
]->Name
;
2204 case GL_SAMPLER_BINDING
: {
2205 struct gl_sampler_object
*samp
;
2207 if (ctx
->API
!= API_OPENGL_CORE
)
2209 if (index
>= _mesa_max_tex_unit(ctx
))
2212 samp
= ctx
->Texture
.Unit
[index
].Sampler
;
2213 v
->value_int
= samp
? samp
->Name
: 0;
2217 case GL_MAX_COMPUTE_WORK_GROUP_COUNT
:
2218 if (!_mesa_has_compute_shaders(ctx
))
2222 v
->value_int
= ctx
->Const
.MaxComputeWorkGroupCount
[index
];
2225 case GL_MAX_COMPUTE_WORK_GROUP_SIZE
:
2226 if (!_mesa_has_compute_shaders(ctx
))
2230 v
->value_int
= ctx
->Const
.MaxComputeWorkGroupSize
[index
];
2235 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=%s)", func
,
2236 _mesa_enum_to_string(pname
));
2237 return TYPE_INVALID
;
2239 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(pname=%s)", func
,
2240 _mesa_enum_to_string(pname
));
2241 return TYPE_INVALID
;
2245 _mesa_GetBooleani_v( GLenum pname
, GLuint index
, GLboolean
*params
)
2248 enum value_type type
=
2249 find_value_indexed("glGetBooleani_v", pname
, index
, &v
);
2253 params
[0] = INT_TO_BOOLEAN(v
.value_int
);
2256 params
[0] = INT_TO_BOOLEAN(v
.value_int_4
[0]);
2257 params
[1] = INT_TO_BOOLEAN(v
.value_int_4
[1]);
2258 params
[2] = INT_TO_BOOLEAN(v
.value_int_4
[2]);
2259 params
[3] = INT_TO_BOOLEAN(v
.value_int_4
[3]);
2262 params
[0] = INT64_TO_BOOLEAN(v
.value_int64
);
2265 ; /* nothing - GL error was recorded */
2270 _mesa_GetIntegeri_v( GLenum pname
, GLuint index
, GLint
*params
)
2273 enum value_type type
=
2274 find_value_indexed("glGetIntegeri_v", pname
, index
, &v
);
2279 params
[3] = IROUND(v
.value_float_4
[3]);
2282 params
[2] = IROUND(v
.value_float_4
[2]);
2285 params
[1] = IROUND(v
.value_float_4
[1]);
2288 params
[0] = IROUND(v
.value_float_4
[0]);
2291 case TYPE_DOUBLEN_2
:
2292 params
[1] = IROUND(v
.value_double_2
[1]);
2294 params
[0] = IROUND(v
.value_double_2
[0]);
2298 params
[0] = v
.value_int
;
2301 params
[0] = v
.value_int_4
[0];
2302 params
[1] = v
.value_int_4
[1];
2303 params
[2] = v
.value_int_4
[2];
2304 params
[3] = v
.value_int_4
[3];
2307 params
[0] = INT64_TO_INT(v
.value_int64
);
2310 ; /* nothing - GL error was recorded */
2315 _mesa_GetInteger64i_v( GLenum pname
, GLuint index
, GLint64
*params
)
2318 enum value_type type
=
2319 find_value_indexed("glGetInteger64i_v", pname
, index
, &v
);
2323 params
[0] = v
.value_int
;
2326 params
[0] = v
.value_int_4
[0];
2327 params
[1] = v
.value_int_4
[1];
2328 params
[2] = v
.value_int_4
[2];
2329 params
[3] = v
.value_int_4
[3];
2332 params
[0] = v
.value_int64
;
2335 ; /* nothing - GL error was recorded */
2340 _mesa_GetFloati_v(GLenum pname
, GLuint index
, GLfloat
*params
)
2345 enum value_type type
=
2346 find_value_indexed("glGetFloati_v", pname
, index
, &v
);
2351 params
[3] = v
.value_float_4
[3];
2354 params
[2] = v
.value_float_4
[2];
2357 params
[1] = v
.value_float_4
[1];
2360 params
[0] = v
.value_float_4
[0];
2363 case TYPE_DOUBLEN_2
:
2364 params
[1] = (GLfloat
) v
.value_double_2
[1];
2366 params
[0] = (GLfloat
) v
.value_double_2
[0];
2370 params
[3] = (GLfloat
) v
.value_int_4
[3];
2372 params
[2] = (GLfloat
) v
.value_int_4
[2];
2375 params
[1] = (GLfloat
) v
.value_int_4
[1];
2378 params
[0] = (GLfloat
) v
.value_int_4
[0];
2382 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
2383 params
[i
] = INT_TO_FLOAT(v
.value_int_n
.ints
[i
]);
2387 params
[0] = (GLfloat
) v
.value_int64
;
2391 params
[0] = BOOLEAN_TO_FLOAT(v
.value_bool
);
2395 m
= *(GLmatrix
**) &v
;
2396 for (i
= 0; i
< 16; i
++)
2397 params
[i
] = m
->m
[i
];
2401 m
= *(GLmatrix
**) &v
;
2402 for (i
= 0; i
< 16; i
++)
2403 params
[i
] = m
->m
[transpose
[i
]];
2412 _mesa_GetDoublei_v(GLenum pname
, GLuint index
, GLdouble
*params
)
2417 enum value_type type
=
2418 find_value_indexed("glGetDoublei_v", pname
, index
, &v
);
2423 params
[3] = (GLdouble
) v
.value_float_4
[3];
2426 params
[2] = (GLdouble
) v
.value_float_4
[2];
2429 params
[1] = (GLdouble
) v
.value_float_4
[1];
2432 params
[0] = (GLdouble
) v
.value_float_4
[0];
2435 case TYPE_DOUBLEN_2
:
2436 params
[1] = v
.value_double_2
[1];
2438 params
[0] = v
.value_double_2
[0];
2442 params
[3] = (GLdouble
) v
.value_int_4
[3];
2444 params
[2] = (GLdouble
) v
.value_int_4
[2];
2447 params
[1] = (GLdouble
) v
.value_int_4
[1];
2450 params
[0] = (GLdouble
) v
.value_int_4
[0];
2454 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
2455 params
[i
] = (GLdouble
) INT_TO_FLOAT(v
.value_int_n
.ints
[i
]);
2459 params
[0] = (GLdouble
) v
.value_int64
;
2463 params
[0] = (GLdouble
) BOOLEAN_TO_FLOAT(v
.value_bool
);
2467 m
= *(GLmatrix
**) &v
;
2468 for (i
= 0; i
< 16; i
++)
2469 params
[i
] = (GLdouble
) m
->m
[i
];
2473 m
= *(GLmatrix
**) &v
;
2474 for (i
= 0; i
< 16; i
++)
2475 params
[i
] = (GLdouble
) m
->m
[transpose
[i
]];
2484 _mesa_GetFixedv(GLenum pname
, GLfixed
*params
)
2486 const struct value_desc
*d
;
2492 d
= find_value("glGetDoublev", pname
, &p
, &v
);
2497 params
[0] = INT_TO_FIXED(d
->offset
);
2502 params
[3] = FLOAT_TO_FIXED(((GLfloat
*) p
)[3]);
2505 params
[2] = FLOAT_TO_FIXED(((GLfloat
*) p
)[2]);
2508 params
[1] = FLOAT_TO_FIXED(((GLfloat
*) p
)[1]);
2511 params
[0] = FLOAT_TO_FIXED(((GLfloat
*) p
)[0]);
2514 case TYPE_DOUBLEN_2
:
2515 params
[1] = FLOAT_TO_FIXED(((GLdouble
*) p
)[1]);
2517 params
[0] = FLOAT_TO_FIXED(((GLdouble
*) p
)[0]);
2521 params
[3] = INT_TO_FIXED(((GLint
*) p
)[3]);
2523 params
[2] = INT_TO_FIXED(((GLint
*) p
)[2]);
2526 params
[1] = INT_TO_FIXED(((GLint
*) p
)[1]);
2529 params
[0] = INT_TO_FIXED(((GLint
*) p
)[0]);
2533 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
2534 params
[i
] = INT_TO_FIXED(v
.value_int_n
.ints
[i
]);
2538 params
[0] = ((GLint64
*) p
)[0];
2542 params
[0] = BOOLEAN_TO_FIXED(((GLboolean
*) p
)[0]);
2546 m
= *(GLmatrix
**) p
;
2547 for (i
= 0; i
< 16; i
++)
2548 params
[i
] = FLOAT_TO_FIXED(m
->m
[i
]);
2552 m
= *(GLmatrix
**) p
;
2553 for (i
= 0; i
< 16; i
++)
2554 params
[i
] = FLOAT_TO_FIXED(m
->m
[transpose
[i
]]);
2565 shift
= d
->type
- TYPE_BIT_0
;
2566 params
[0] = BOOLEAN_TO_FIXED((*(GLbitfield
*) p
>> shift
) & 1);