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
),
417 EXTRA_EXT(ARB_texture_cube_map
);
418 EXTRA_EXT(EXT_texture_array
);
419 EXTRA_EXT(NV_fog_distance
);
420 EXTRA_EXT(EXT_texture_filter_anisotropic
);
421 EXTRA_EXT(NV_point_sprite
);
422 EXTRA_EXT(NV_texture_rectangle
);
423 EXTRA_EXT(EXT_stencil_two_side
);
424 EXTRA_EXT(EXT_depth_bounds_test
);
425 EXTRA_EXT(ARB_depth_clamp
);
426 EXTRA_EXT(ATI_fragment_shader
);
427 EXTRA_EXT(EXT_provoking_vertex
);
428 EXTRA_EXT(ARB_fragment_shader
);
429 EXTRA_EXT(ARB_fragment_program
);
430 EXTRA_EXT2(ARB_framebuffer_object
, EXT_framebuffer_multisample
);
431 EXTRA_EXT(ARB_seamless_cube_map
);
433 EXTRA_EXT(ARB_vertex_shader
);
434 EXTRA_EXT(EXT_transform_feedback
);
435 EXTRA_EXT(ARB_transform_feedback3
);
436 EXTRA_EXT(EXT_pixel_buffer_object
);
437 EXTRA_EXT(ARB_vertex_program
);
438 EXTRA_EXT2(NV_point_sprite
, ARB_point_sprite
);
439 EXTRA_EXT2(ARB_vertex_program
, ARB_fragment_program
);
440 EXTRA_EXT(ARB_color_buffer_float
);
441 EXTRA_EXT(EXT_framebuffer_sRGB
);
442 EXTRA_EXT(OES_EGL_image_external
);
443 EXTRA_EXT(ARB_blend_func_extended
);
444 EXTRA_EXT(ARB_uniform_buffer_object
);
445 EXTRA_EXT(ARB_timer_query
);
446 EXTRA_EXT2(ARB_texture_cube_map_array
, OES_texture_cube_map_array
);
447 EXTRA_EXT(ARB_texture_buffer_range
);
448 EXTRA_EXT(ARB_texture_multisample
);
449 EXTRA_EXT(ARB_texture_gather
);
450 EXTRA_EXT(ARB_shader_atomic_counters
);
451 EXTRA_EXT(ARB_draw_indirect
);
452 EXTRA_EXT(ARB_shader_image_load_store
);
453 EXTRA_EXT(ARB_viewport_array
);
454 EXTRA_EXT(ARB_query_buffer_object
);
455 EXTRA_EXT2(ARB_transform_feedback3
, ARB_gpu_shader5
);
456 EXTRA_EXT(INTEL_performance_query
);
457 EXTRA_EXT(ARB_explicit_uniform_location
);
458 EXTRA_EXT(ARB_clip_control
);
459 EXTRA_EXT(EXT_polygon_offset_clamp
);
460 EXTRA_EXT(ARB_framebuffer_no_attachments
);
461 EXTRA_EXT(ARB_tessellation_shader
);
462 EXTRA_EXT(ARB_shader_subroutine
);
463 EXTRA_EXT(ARB_shader_storage_buffer_object
);
464 EXTRA_EXT(ARB_indirect_parameters
);
465 EXTRA_EXT(ATI_meminfo
);
466 EXTRA_EXT(NVX_gpu_memory_info
);
467 EXTRA_EXT(ARB_cull_distance
);
468 EXTRA_EXT(EXT_window_rectangles
);
469 EXTRA_EXT(KHR_blend_equation_advanced_coherent
);
472 extra_ARB_color_buffer_float_or_glcore
[] = {
473 EXT(ARB_color_buffer_float
),
479 extra_NV_primitive_restart
[] = {
480 EXT(NV_primitive_restart
),
484 static const int extra_version_30
[] = { EXTRA_VERSION_30
, EXTRA_END
};
485 static const int extra_version_31
[] = { EXTRA_VERSION_31
, EXTRA_END
};
486 static const int extra_version_32
[] = { EXTRA_VERSION_32
, EXTRA_END
};
488 static const int extra_gl30_es3
[] = {
494 static const int extra_gl32_es3
[] = {
500 static const int extra_version_32_OES_geometry_shader
[] = {
506 static const int extra_gl40_ARB_sample_shading
[] = {
508 EXT(ARB_sample_shading
),
513 extra_ARB_vertex_program_api_es2
[] = {
514 EXT(ARB_vertex_program
),
519 /* The ReadBuffer get token is valid under either full GL or under
520 * GLES2 if the NV_read_buffer extension is available. */
522 extra_NV_read_buffer_api_gl
[] = {
528 static const int extra_core_ARB_color_buffer_float_and_new_buffers
[] = {
530 EXT(ARB_color_buffer_float
),
535 static const int extra_EXT_shader_framebuffer_fetch
[] = {
538 EXT(MESA_shader_framebuffer_fetch
),
542 /* This is the big table describing all the enums we accept in
543 * glGet*v(). The table is partitioned into six parts: enums
544 * understood by all GL APIs (OpenGL, GLES and GLES2), enums shared
545 * between OpenGL and GLES, enums exclusive to GLES, etc for the
546 * remaining combinations. To look up the enums valid in a given API
547 * we will use a hash table specific to that API. These tables are in
548 * turn generated at build time and included through get_hash.h.
551 #include "get_hash.h"
553 /* All we need now is a way to look up the value struct from the enum.
554 * The code generated by gcc for the old generated big switch
555 * statement is a big, balanced, open coded if/else tree, essentially
556 * an unrolled binary search. It would be natural to sort the new
557 * enum table and use bsearch(), but we will use a read-only hash
558 * table instead. bsearch() has a nice guaranteed worst case
559 * performance, but we're also guaranteed to hit that worst case
560 * (log2(n) iterations) for about half the enums. Instead, using an
561 * open addressing hash table, we can find the enum on the first try
562 * for 80% of the enums, 1 collision for 10% and never more than 5
563 * collisions for any enum (typical numbers). And the code is very
564 * simple, even though it feels a little magic. */
567 * Handle irregular enums
569 * Some values don't conform to the "well-known type at context
570 * pointer + offset" pattern, so we have this function to catch all
571 * the corner cases. Typically, it's a computed value or a one-off
572 * pointer to a custom struct or something.
574 * In this case we can't return a pointer to the value, so we'll have
575 * to use the temporary variable 'v' declared back in the calling
576 * glGet*v() function to store the result.
578 * \param ctx the current context
579 * \param d the struct value_desc that describes the enum
580 * \param v pointer to the tmp declared in the calling glGet*v() function
583 find_custom_value(struct gl_context
*ctx
, const struct value_desc
*d
, union value
*v
)
585 struct gl_buffer_object
**buffer_obj
;
586 struct gl_vertex_attrib_array
*array
;
590 case GL_MAJOR_VERSION
:
591 v
->value_int
= ctx
->Version
/ 10;
593 case GL_MINOR_VERSION
:
594 v
->value_int
= ctx
->Version
% 10;
600 case GL_TEXTURE_CUBE_MAP
:
601 case GL_TEXTURE_RECTANGLE_NV
:
602 case GL_TEXTURE_EXTERNAL_OES
:
603 v
->value_bool
= _mesa_IsEnabled(d
->pname
);
606 case GL_LINE_STIPPLE_PATTERN
:
607 /* This is the only GLushort, special case it here by promoting
608 * to an int rather than introducing a new type. */
609 v
->value_int
= ctx
->Line
.StipplePattern
;
612 case GL_CURRENT_RASTER_TEXTURE_COORDS
:
613 unit
= ctx
->Texture
.CurrentUnit
;
614 v
->value_float_4
[0] = ctx
->Current
.RasterTexCoords
[unit
][0];
615 v
->value_float_4
[1] = ctx
->Current
.RasterTexCoords
[unit
][1];
616 v
->value_float_4
[2] = ctx
->Current
.RasterTexCoords
[unit
][2];
617 v
->value_float_4
[3] = ctx
->Current
.RasterTexCoords
[unit
][3];
620 case GL_CURRENT_TEXTURE_COORDS
:
621 unit
= ctx
->Texture
.CurrentUnit
;
622 v
->value_float_4
[0] = ctx
->Current
.Attrib
[VERT_ATTRIB_TEX0
+ unit
][0];
623 v
->value_float_4
[1] = ctx
->Current
.Attrib
[VERT_ATTRIB_TEX0
+ unit
][1];
624 v
->value_float_4
[2] = ctx
->Current
.Attrib
[VERT_ATTRIB_TEX0
+ unit
][2];
625 v
->value_float_4
[3] = ctx
->Current
.Attrib
[VERT_ATTRIB_TEX0
+ unit
][3];
628 case GL_COLOR_WRITEMASK
:
629 v
->value_int_4
[0] = ctx
->Color
.ColorMask
[0][RCOMP
] ? 1 : 0;
630 v
->value_int_4
[1] = ctx
->Color
.ColorMask
[0][GCOMP
] ? 1 : 0;
631 v
->value_int_4
[2] = ctx
->Color
.ColorMask
[0][BCOMP
] ? 1 : 0;
632 v
->value_int_4
[3] = ctx
->Color
.ColorMask
[0][ACOMP
] ? 1 : 0;
636 v
->value_bool
= ctx
->Current
.Attrib
[VERT_ATTRIB_EDGEFLAG
][0] == 1.0F
;
640 v
->value_enum
= ctx
->ReadBuffer
->ColorReadBuffer
;
643 case GL_MAP2_GRID_DOMAIN
:
644 v
->value_float_4
[0] = ctx
->Eval
.MapGrid2u1
;
645 v
->value_float_4
[1] = ctx
->Eval
.MapGrid2u2
;
646 v
->value_float_4
[2] = ctx
->Eval
.MapGrid2v1
;
647 v
->value_float_4
[3] = ctx
->Eval
.MapGrid2v2
;
650 case GL_TEXTURE_STACK_DEPTH
:
651 unit
= ctx
->Texture
.CurrentUnit
;
652 v
->value_int
= ctx
->TextureMatrixStack
[unit
].Depth
+ 1;
654 case GL_TEXTURE_MATRIX
:
655 unit
= ctx
->Texture
.CurrentUnit
;
656 v
->value_matrix
= ctx
->TextureMatrixStack
[unit
].Top
;
659 case GL_TEXTURE_COORD_ARRAY
:
660 case GL_TEXTURE_COORD_ARRAY_SIZE
:
661 case GL_TEXTURE_COORD_ARRAY_TYPE
:
662 case GL_TEXTURE_COORD_ARRAY_STRIDE
:
663 array
= &ctx
->Array
.VAO
->VertexAttrib
[VERT_ATTRIB_TEX(ctx
->Array
.ActiveTexture
)];
664 v
->value_int
= *(GLuint
*) ((char *) array
+ d
->offset
);
667 case GL_ACTIVE_TEXTURE_ARB
:
668 v
->value_int
= GL_TEXTURE0_ARB
+ ctx
->Texture
.CurrentUnit
;
670 case GL_CLIENT_ACTIVE_TEXTURE_ARB
:
671 v
->value_int
= GL_TEXTURE0_ARB
+ ctx
->Array
.ActiveTexture
;
674 case GL_MODELVIEW_STACK_DEPTH
:
675 case GL_PROJECTION_STACK_DEPTH
:
676 v
->value_int
= *(GLint
*) ((char *) ctx
+ d
->offset
) + 1;
679 case GL_MAX_TEXTURE_SIZE
:
680 case GL_MAX_3D_TEXTURE_SIZE
:
681 case GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB
:
682 p
= (GLuint
*) ((char *) ctx
+ d
->offset
);
683 v
->value_int
= 1 << (*p
- 1);
687 v
->value_int_4
[0] = ctx
->Scissor
.ScissorArray
[0].X
;
688 v
->value_int_4
[1] = ctx
->Scissor
.ScissorArray
[0].Y
;
689 v
->value_int_4
[2] = ctx
->Scissor
.ScissorArray
[0].Width
;
690 v
->value_int_4
[3] = ctx
->Scissor
.ScissorArray
[0].Height
;
693 case GL_SCISSOR_TEST
:
694 v
->value_bool
= ctx
->Scissor
.EnableFlags
& 1;
699 ctx
->ListState
.CurrentList
? ctx
->ListState
.CurrentList
->Name
: 0;
702 if (!ctx
->CompileFlag
)
704 else if (ctx
->ExecuteFlag
)
705 v
->value_enum
= GL_COMPILE_AND_EXECUTE
;
707 v
->value_enum
= GL_COMPILE
;
711 v
->value_float_4
[0] = ctx
->ViewportArray
[0].X
;
712 v
->value_float_4
[1] = ctx
->ViewportArray
[0].Y
;
713 v
->value_float_4
[2] = ctx
->ViewportArray
[0].Width
;
714 v
->value_float_4
[3] = ctx
->ViewportArray
[0].Height
;
718 v
->value_double_2
[0] = ctx
->ViewportArray
[0].Near
;
719 v
->value_double_2
[1] = ctx
->ViewportArray
[0].Far
;
722 case GL_ACTIVE_STENCIL_FACE_EXT
:
723 v
->value_enum
= ctx
->Stencil
.ActiveFace
? GL_BACK
: GL_FRONT
;
726 case GL_STENCIL_FAIL
:
727 v
->value_enum
= ctx
->Stencil
.FailFunc
[ctx
->Stencil
.ActiveFace
];
729 case GL_STENCIL_FUNC
:
730 v
->value_enum
= ctx
->Stencil
.Function
[ctx
->Stencil
.ActiveFace
];
732 case GL_STENCIL_PASS_DEPTH_FAIL
:
733 v
->value_enum
= ctx
->Stencil
.ZFailFunc
[ctx
->Stencil
.ActiveFace
];
735 case GL_STENCIL_PASS_DEPTH_PASS
:
736 v
->value_enum
= ctx
->Stencil
.ZPassFunc
[ctx
->Stencil
.ActiveFace
];
739 v
->value_int
= _mesa_get_stencil_ref(ctx
, ctx
->Stencil
.ActiveFace
);
741 case GL_STENCIL_BACK_REF
:
742 v
->value_int
= _mesa_get_stencil_ref(ctx
, 1);
744 case GL_STENCIL_VALUE_MASK
:
745 v
->value_int
= ctx
->Stencil
.ValueMask
[ctx
->Stencil
.ActiveFace
];
747 case GL_STENCIL_WRITEMASK
:
748 v
->value_int
= ctx
->Stencil
.WriteMask
[ctx
->Stencil
.ActiveFace
];
751 case GL_NUM_EXTENSIONS
:
752 v
->value_int
= _mesa_get_extension_count(ctx
);
755 case GL_IMPLEMENTATION_COLOR_READ_TYPE_OES
:
756 v
->value_int
= _mesa_get_color_read_type(ctx
);
758 case GL_IMPLEMENTATION_COLOR_READ_FORMAT_OES
:
759 v
->value_int
= _mesa_get_color_read_format(ctx
);
762 case GL_CURRENT_MATRIX_STACK_DEPTH_ARB
:
763 v
->value_int
= ctx
->CurrentStack
->Depth
+ 1;
765 case GL_CURRENT_MATRIX_ARB
:
766 case GL_TRANSPOSE_CURRENT_MATRIX_ARB
:
767 v
->value_matrix
= ctx
->CurrentStack
->Top
;
770 case GL_NUM_COMPRESSED_TEXTURE_FORMATS_ARB
:
771 v
->value_int
= _mesa_get_compressed_formats(ctx
, NULL
);
773 case GL_COMPRESSED_TEXTURE_FORMATS_ARB
:
775 _mesa_get_compressed_formats(ctx
, v
->value_int_n
.ints
);
776 assert(v
->value_int_n
.n
<= (int) ARRAY_SIZE(v
->value_int_n
.ints
));
779 case GL_MAX_VARYING_FLOATS_ARB
:
780 v
->value_int
= ctx
->Const
.MaxVarying
* 4;
783 /* Various object names */
785 case GL_TEXTURE_BINDING_1D
:
786 case GL_TEXTURE_BINDING_2D
:
787 case GL_TEXTURE_BINDING_3D
:
788 case GL_TEXTURE_BINDING_1D_ARRAY_EXT
:
789 case GL_TEXTURE_BINDING_2D_ARRAY_EXT
:
790 case GL_TEXTURE_BINDING_CUBE_MAP_ARB
:
791 case GL_TEXTURE_BINDING_RECTANGLE_NV
:
792 case GL_TEXTURE_BINDING_EXTERNAL_OES
:
793 case GL_TEXTURE_BINDING_CUBE_MAP_ARRAY
:
794 case GL_TEXTURE_BINDING_2D_MULTISAMPLE
:
795 case GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY
:
796 unit
= ctx
->Texture
.CurrentUnit
;
798 ctx
->Texture
.Unit
[unit
].CurrentTex
[d
->offset
]->Name
;
801 /* GL_EXT_packed_float */
802 case GL_RGBA_SIGNED_COMPONENTS_EXT
:
804 /* Note: we only check the 0th color attachment. */
805 const struct gl_renderbuffer
*rb
=
806 ctx
->DrawBuffer
->_ColorDrawBuffers
[0];
807 if (rb
&& _mesa_is_format_signed(rb
->Format
)) {
808 /* Issue 17 of GL_EXT_packed_float: If a component (such as
809 * alpha) has zero bits, the component should not be considered
810 * signed and so the bit for the respective component should be
814 _mesa_get_format_bits(rb
->Format
, GL_RED_BITS
);
816 _mesa_get_format_bits(rb
->Format
, GL_GREEN_BITS
);
818 _mesa_get_format_bits(rb
->Format
, GL_BLUE_BITS
);
820 _mesa_get_format_bits(rb
->Format
, GL_ALPHA_BITS
);
822 _mesa_get_format_bits(rb
->Format
, GL_TEXTURE_LUMINANCE_SIZE
);
824 _mesa_get_format_bits(rb
->Format
, GL_TEXTURE_INTENSITY_SIZE
);
826 v
->value_int_4
[0] = r_bits
+ l_bits
+ i_bits
> 0;
827 v
->value_int_4
[1] = g_bits
+ l_bits
+ i_bits
> 0;
828 v
->value_int_4
[2] = b_bits
+ l_bits
+ i_bits
> 0;
829 v
->value_int_4
[3] = a_bits
+ i_bits
> 0;
835 v
->value_int_4
[3] = 0;
840 /* GL_ARB_vertex_buffer_object */
841 case GL_VERTEX_ARRAY_BUFFER_BINDING_ARB
:
842 case GL_NORMAL_ARRAY_BUFFER_BINDING_ARB
:
843 case GL_COLOR_ARRAY_BUFFER_BINDING_ARB
:
844 case GL_INDEX_ARRAY_BUFFER_BINDING_ARB
:
845 case GL_EDGE_FLAG_ARRAY_BUFFER_BINDING_ARB
:
846 case GL_SECONDARY_COLOR_ARRAY_BUFFER_BINDING_ARB
:
847 case GL_FOG_COORDINATE_ARRAY_BUFFER_BINDING_ARB
:
848 buffer_obj
= (struct gl_buffer_object
**)
849 ((char *) ctx
->Array
.VAO
+ d
->offset
);
850 v
->value_int
= (*buffer_obj
)->Name
;
852 case GL_ARRAY_BUFFER_BINDING_ARB
:
853 v
->value_int
= ctx
->Array
.ArrayBufferObj
->Name
;
855 case GL_TEXTURE_COORD_ARRAY_BUFFER_BINDING_ARB
:
857 ctx
->Array
.VAO
->VertexBinding
[VERT_ATTRIB_TEX(ctx
->Array
.ActiveTexture
)].BufferObj
->Name
;
859 case GL_ELEMENT_ARRAY_BUFFER_BINDING_ARB
:
860 v
->value_int
= ctx
->Array
.VAO
->IndexBufferObj
->Name
;
863 /* ARB_vertex_array_bgra */
864 case GL_COLOR_ARRAY_SIZE
:
865 array
= &ctx
->Array
.VAO
->VertexAttrib
[VERT_ATTRIB_COLOR0
];
866 v
->value_int
= array
->Format
== GL_BGRA
? GL_BGRA
: array
->Size
;
868 case GL_SECONDARY_COLOR_ARRAY_SIZE
:
869 array
= &ctx
->Array
.VAO
->VertexAttrib
[VERT_ATTRIB_COLOR1
];
870 v
->value_int
= array
->Format
== GL_BGRA
? GL_BGRA
: array
->Size
;
873 /* ARB_copy_buffer */
874 case GL_COPY_READ_BUFFER
:
875 v
->value_int
= ctx
->CopyReadBuffer
->Name
;
877 case GL_COPY_WRITE_BUFFER
:
878 v
->value_int
= ctx
->CopyWriteBuffer
->Name
;
881 case GL_PIXEL_PACK_BUFFER_BINDING_EXT
:
882 v
->value_int
= ctx
->Pack
.BufferObj
->Name
;
884 case GL_PIXEL_UNPACK_BUFFER_BINDING_EXT
:
885 v
->value_int
= ctx
->Unpack
.BufferObj
->Name
;
887 case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING
:
888 v
->value_int
= ctx
->TransformFeedback
.CurrentBuffer
->Name
;
890 case GL_TRANSFORM_FEEDBACK_BUFFER_PAUSED
:
891 v
->value_int
= ctx
->TransformFeedback
.CurrentObject
->Paused
;
893 case GL_TRANSFORM_FEEDBACK_BUFFER_ACTIVE
:
894 v
->value_int
= ctx
->TransformFeedback
.CurrentObject
->Active
;
896 case GL_TRANSFORM_FEEDBACK_BINDING
:
897 v
->value_int
= ctx
->TransformFeedback
.CurrentObject
->Name
;
899 case GL_CURRENT_PROGRAM
:
900 /* The Changelog of the ARB_separate_shader_objects spec says:
902 * 24 25 Jul 2011 pbrown Remove the language erroneously deleting
903 * CURRENT_PROGRAM. In the EXT extension, this
904 * token was aliased to ACTIVE_PROGRAM_EXT, and
905 * was used to indicate the last program set by
906 * either ActiveProgramEXT or UseProgram. In
907 * the ARB extension, the SSO active programs
908 * are now program pipeline object state and
909 * CURRENT_PROGRAM should still be used to query
910 * the last program set by UseProgram (bug 7822).
913 ctx
->Shader
.ActiveProgram
? ctx
->Shader
.ActiveProgram
->Name
: 0;
915 case GL_READ_FRAMEBUFFER_BINDING_EXT
:
916 v
->value_int
= ctx
->ReadBuffer
->Name
;
918 case GL_RENDERBUFFER_BINDING_EXT
:
920 ctx
->CurrentRenderbuffer
? ctx
->CurrentRenderbuffer
->Name
: 0;
922 case GL_POINT_SIZE_ARRAY_BUFFER_BINDING_OES
:
923 v
->value_int
= ctx
->Array
.VAO
->VertexBinding
[VERT_ATTRIB_POINT_SIZE
].BufferObj
->Name
;
927 if (_mesa_get_clamp_fragment_color(ctx
, ctx
->DrawBuffer
))
928 COPY_4FV(v
->value_float_4
, ctx
->Fog
.Color
);
930 COPY_4FV(v
->value_float_4
, ctx
->Fog
.ColorUnclamped
);
932 case GL_COLOR_CLEAR_VALUE
:
933 if (_mesa_get_clamp_fragment_color(ctx
, ctx
->DrawBuffer
)) {
934 v
->value_float_4
[0] = CLAMP(ctx
->Color
.ClearColor
.f
[0], 0.0F
, 1.0F
);
935 v
->value_float_4
[1] = CLAMP(ctx
->Color
.ClearColor
.f
[1], 0.0F
, 1.0F
);
936 v
->value_float_4
[2] = CLAMP(ctx
->Color
.ClearColor
.f
[2], 0.0F
, 1.0F
);
937 v
->value_float_4
[3] = CLAMP(ctx
->Color
.ClearColor
.f
[3], 0.0F
, 1.0F
);
939 COPY_4FV(v
->value_float_4
, ctx
->Color
.ClearColor
.f
);
941 case GL_BLEND_COLOR_EXT
:
942 if (_mesa_get_clamp_fragment_color(ctx
, ctx
->DrawBuffer
))
943 COPY_4FV(v
->value_float_4
, ctx
->Color
.BlendColor
);
945 COPY_4FV(v
->value_float_4
, ctx
->Color
.BlendColorUnclamped
);
947 case GL_ALPHA_TEST_REF
:
948 if (_mesa_get_clamp_fragment_color(ctx
, ctx
->DrawBuffer
))
949 v
->value_float
= ctx
->Color
.AlphaRef
;
951 v
->value_float
= ctx
->Color
.AlphaRefUnclamped
;
953 case GL_MAX_VERTEX_UNIFORM_VECTORS
:
954 v
->value_int
= ctx
->Const
.Program
[MESA_SHADER_VERTEX
].MaxUniformComponents
/ 4;
957 case GL_MAX_FRAGMENT_UNIFORM_VECTORS
:
958 v
->value_int
= ctx
->Const
.Program
[MESA_SHADER_FRAGMENT
].MaxUniformComponents
/ 4;
961 /* GL_ARB_texture_buffer_object */
962 case GL_TEXTURE_BUFFER_ARB
:
963 v
->value_int
= ctx
->Texture
.BufferObject
->Name
;
965 case GL_TEXTURE_BINDING_BUFFER_ARB
:
966 unit
= ctx
->Texture
.CurrentUnit
;
968 ctx
->Texture
.Unit
[unit
].CurrentTex
[TEXTURE_BUFFER_INDEX
]->Name
;
970 case GL_TEXTURE_BUFFER_DATA_STORE_BINDING_ARB
:
972 struct gl_buffer_object
*buf
=
973 ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
]
974 .CurrentTex
[TEXTURE_BUFFER_INDEX
]->BufferObject
;
975 v
->value_int
= buf
? buf
->Name
: 0;
978 case GL_TEXTURE_BUFFER_FORMAT_ARB
:
979 v
->value_int
= ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
]
980 .CurrentTex
[TEXTURE_BUFFER_INDEX
]->BufferObjectFormat
;
983 /* GL_ARB_sampler_objects */
984 case GL_SAMPLER_BINDING
:
986 struct gl_sampler_object
*samp
=
987 ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
].Sampler
;
988 v
->value_int
= samp
? samp
->Name
: 0;
991 /* GL_ARB_uniform_buffer_object */
992 case GL_UNIFORM_BUFFER_BINDING
:
993 v
->value_int
= ctx
->UniformBuffer
->Name
;
995 /* GL_ARB_shader_storage_buffer_object */
996 case GL_SHADER_STORAGE_BUFFER_BINDING
:
997 v
->value_int
= ctx
->ShaderStorageBuffer
->Name
;
999 /* GL_ARB_query_buffer_object */
1000 case GL_QUERY_BUFFER_BINDING
:
1001 v
->value_int
= ctx
->QueryBuffer
->Name
;
1003 /* GL_ARB_timer_query */
1005 if (ctx
->Driver
.GetTimestamp
) {
1006 v
->value_int64
= ctx
->Driver
.GetTimestamp(ctx
);
1009 _mesa_problem(ctx
, "driver doesn't implement GetTimestamp");
1013 case GL_DEBUG_OUTPUT
:
1014 case GL_DEBUG_OUTPUT_SYNCHRONOUS
:
1015 case GL_DEBUG_LOGGED_MESSAGES
:
1016 case GL_DEBUG_NEXT_LOGGED_MESSAGE_LENGTH
:
1017 case GL_DEBUG_GROUP_STACK_DEPTH
:
1018 v
->value_int
= _mesa_get_debug_state_int(ctx
, d
->pname
);
1020 /* GL_ARB_shader_atomic_counters */
1021 case GL_ATOMIC_COUNTER_BUFFER_BINDING
:
1022 if (ctx
->AtomicBuffer
) {
1023 v
->value_int
= ctx
->AtomicBuffer
->Name
;
1028 /* GL_ARB_draw_indirect */
1029 case GL_DRAW_INDIRECT_BUFFER_BINDING
:
1030 v
->value_int
= ctx
->DrawIndirectBuffer
->Name
;
1032 /* GL_ARB_indirect_parameters */
1033 case GL_PARAMETER_BUFFER_BINDING_ARB
:
1034 v
->value_int
= ctx
->ParameterBuffer
->Name
;
1036 /* GL_ARB_separate_shader_objects */
1037 case GL_PROGRAM_PIPELINE_BINDING
:
1038 if (ctx
->Pipeline
.Current
) {
1039 v
->value_int
= ctx
->Pipeline
.Current
->Name
;
1044 /* GL_ARB_compute_shader */
1045 case GL_DISPATCH_INDIRECT_BUFFER_BINDING
:
1046 v
->value_int
= ctx
->DispatchIndirectBuffer
->Name
;
1048 /* GL_ARB_multisample */
1050 v
->value_int
= _mesa_geometric_samples(ctx
->DrawBuffer
);
1052 case GL_SAMPLE_BUFFERS
:
1053 v
->value_int
= _mesa_geometric_samples(ctx
->DrawBuffer
) > 0;
1055 /* GL_ATI_meminfo & GL_NVX_gpu_memory_info */
1056 case GL_VBO_FREE_MEMORY_ATI
:
1057 case GL_TEXTURE_FREE_MEMORY_ATI
:
1058 case GL_RENDERBUFFER_FREE_MEMORY_ATI
:
1059 case GL_GPU_MEMORY_INFO_DEDICATED_VIDMEM_NVX
:
1060 case GL_GPU_MEMORY_INFO_TOTAL_AVAILABLE_MEMORY_NVX
:
1061 case GL_GPU_MEMORY_INFO_CURRENT_AVAILABLE_VIDMEM_NVX
:
1062 case GL_GPU_MEMORY_INFO_EVICTION_COUNT_NVX
:
1063 case GL_GPU_MEMORY_INFO_EVICTED_MEMORY_NVX
:
1065 struct gl_memory_info info
;
1067 ctx
->Driver
.QueryMemoryInfo(ctx
, &info
);
1069 if (d
->pname
== GL_GPU_MEMORY_INFO_DEDICATED_VIDMEM_NVX
)
1070 v
->value_int
= info
.total_device_memory
;
1071 else if (d
->pname
== GL_GPU_MEMORY_INFO_TOTAL_AVAILABLE_MEMORY_NVX
)
1072 v
->value_int
= info
.total_device_memory
+
1073 info
.total_staging_memory
;
1074 else if (d
->pname
== GL_GPU_MEMORY_INFO_CURRENT_AVAILABLE_VIDMEM_NVX
)
1075 v
->value_int
= info
.avail_device_memory
;
1076 else if (d
->pname
== GL_GPU_MEMORY_INFO_EVICTION_COUNT_NVX
)
1077 v
->value_int
= info
.nr_device_memory_evictions
;
1078 else if (d
->pname
== GL_GPU_MEMORY_INFO_EVICTED_MEMORY_NVX
)
1079 v
->value_int
= info
.device_memory_evicted
;
1081 /* ATI free memory enums.
1083 * Since the GPU memory is (usually) page-table based, every two
1084 * consecutive elements are equal. From the GL_ATI_meminfo
1087 * "param[0] - total memory free in the pool
1088 * param[1] - largest available free block in the pool
1089 * param[2] - total auxiliary memory free
1090 * param[3] - largest auxiliary free block"
1092 * All three (VBO, TEXTURE, RENDERBUFFER) queries return
1093 * the same numbers here.
1095 v
->value_int_4
[0] = info
.avail_device_memory
;
1096 v
->value_int_4
[1] = info
.avail_device_memory
;
1097 v
->value_int_4
[2] = info
.avail_staging_memory
;
1098 v
->value_int_4
[3] = info
.avail_staging_memory
;
1106 * Check extra constraints on a struct value_desc descriptor
1108 * If a struct value_desc has a non-NULL extra pointer, it means that
1109 * there are a number of extra constraints to check or actions to
1110 * perform. The extras is just an integer array where each integer
1111 * encode different constraints or actions.
1113 * \param ctx current context
1114 * \param func name of calling glGet*v() function for error reporting
1115 * \param d the struct value_desc that has the extra constraints
1117 * \return GL_FALSE if all of the constraints were not satisfied,
1118 * otherwise GL_TRUE.
1121 check_extra(struct gl_context
*ctx
, const char *func
, const struct value_desc
*d
)
1123 const GLuint version
= ctx
->Version
;
1124 GLboolean api_check
= GL_FALSE
;
1125 GLboolean api_found
= GL_FALSE
;
1128 for (e
= d
->extra
; *e
!= EXTRA_END
; e
++) {
1130 case EXTRA_VERSION_30
:
1131 api_check
= GL_TRUE
;
1133 api_found
= GL_TRUE
;
1135 case EXTRA_VERSION_31
:
1136 api_check
= GL_TRUE
;
1138 api_found
= GL_TRUE
;
1140 case EXTRA_VERSION_32
:
1141 api_check
= GL_TRUE
;
1143 api_found
= GL_TRUE
;
1145 case EXTRA_NEW_FRAG_CLAMP
:
1146 if (ctx
->NewState
& (_NEW_BUFFERS
| _NEW_FRAG_CLAMP
))
1147 _mesa_update_state(ctx
);
1150 api_check
= GL_TRUE
;
1151 if (ctx
->API
== API_OPENGLES2
)
1152 api_found
= GL_TRUE
;
1155 api_check
= GL_TRUE
;
1156 if (_mesa_is_gles3(ctx
))
1157 api_found
= GL_TRUE
;
1159 case EXTRA_API_ES31
:
1160 api_check
= GL_TRUE
;
1161 if (_mesa_is_gles31(ctx
))
1162 api_found
= GL_TRUE
;
1165 api_check
= GL_TRUE
;
1166 if (_mesa_is_desktop_gl(ctx
))
1167 api_found
= GL_TRUE
;
1169 case EXTRA_API_GL_CORE
:
1170 api_check
= GL_TRUE
;
1171 if (ctx
->API
== API_OPENGL_CORE
)
1172 api_found
= GL_TRUE
;
1174 case EXTRA_NEW_BUFFERS
:
1175 if (ctx
->NewState
& _NEW_BUFFERS
)
1176 _mesa_update_state(ctx
);
1178 case EXTRA_FLUSH_CURRENT
:
1179 FLUSH_CURRENT(ctx
, 0);
1181 case EXTRA_VALID_DRAW_BUFFER
:
1182 if (d
->pname
- GL_DRAW_BUFFER0_ARB
>= ctx
->Const
.MaxDrawBuffers
) {
1183 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(draw buffer %u)",
1184 func
, d
->pname
- GL_DRAW_BUFFER0_ARB
);
1188 case EXTRA_VALID_TEXTURE_UNIT
:
1189 if (ctx
->Texture
.CurrentUnit
>= ctx
->Const
.MaxTextureCoordUnits
) {
1190 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(texture %u)",
1191 func
, ctx
->Texture
.CurrentUnit
);
1195 case EXTRA_VALID_CLIP_DISTANCE
:
1196 if (d
->pname
- GL_CLIP_DISTANCE0
>= ctx
->Const
.MaxClipPlanes
) {
1197 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(clip distance %u)",
1198 func
, d
->pname
- GL_CLIP_DISTANCE0
);
1202 case EXTRA_GLSL_130
:
1203 api_check
= GL_TRUE
;
1204 if (ctx
->Const
.GLSLVersion
>= 130)
1205 api_found
= GL_TRUE
;
1207 case EXTRA_EXT_UBO_GS
:
1208 api_check
= GL_TRUE
;
1209 if (ctx
->Extensions
.ARB_uniform_buffer_object
&&
1210 _mesa_has_geometry_shaders(ctx
))
1211 api_found
= GL_TRUE
;
1213 case EXTRA_EXT_ATOMICS_GS
:
1214 api_check
= GL_TRUE
;
1215 if (ctx
->Extensions
.ARB_shader_atomic_counters
&&
1216 _mesa_has_geometry_shaders(ctx
))
1217 api_found
= GL_TRUE
;
1219 case EXTRA_EXT_SHADER_IMAGE_GS
:
1220 api_check
= GL_TRUE
;
1221 if (ctx
->Extensions
.ARB_shader_image_load_store
&&
1222 _mesa_has_geometry_shaders(ctx
))
1223 api_found
= GL_TRUE
;
1225 case EXTRA_EXT_ATOMICS_TESS
:
1226 api_check
= GL_TRUE
;
1227 api_found
= ctx
->Extensions
.ARB_shader_atomic_counters
&&
1228 _mesa_has_tessellation(ctx
);
1230 case EXTRA_EXT_SHADER_IMAGE_TESS
:
1231 api_check
= GL_TRUE
;
1232 api_found
= ctx
->Extensions
.ARB_shader_image_load_store
&&
1233 _mesa_has_tessellation(ctx
);
1235 case EXTRA_EXT_SSBO_GS
:
1236 api_check
= GL_TRUE
;
1237 if (ctx
->Extensions
.ARB_shader_storage_buffer_object
&&
1238 _mesa_has_geometry_shaders(ctx
))
1239 api_found
= GL_TRUE
;
1241 case EXTRA_EXT_FB_NO_ATTACH_GS
:
1242 api_check
= GL_TRUE
;
1243 if (ctx
->Extensions
.ARB_framebuffer_no_attachments
&&
1244 (_mesa_is_desktop_gl(ctx
) ||
1245 _mesa_has_OES_geometry_shader(ctx
)))
1246 api_found
= GL_TRUE
;
1248 case EXTRA_EXT_ES_GS
:
1249 api_check
= GL_TRUE
;
1250 if (_mesa_has_OES_geometry_shader(ctx
))
1251 api_found
= GL_TRUE
;
1255 default: /* *e is a offset into the extension struct */
1256 api_check
= GL_TRUE
;
1257 if (*(GLboolean
*) ((char *) &ctx
->Extensions
+ *e
))
1258 api_found
= GL_TRUE
;
1263 if (api_check
&& !api_found
) {
1264 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=%s)", func
,
1265 _mesa_enum_to_string(d
->pname
));
1272 static const struct value_desc error_value
=
1273 { 0, 0, TYPE_INVALID
, NO_OFFSET
, NO_EXTRA
};
1276 * Find the struct value_desc corresponding to the enum 'pname'.
1278 * We hash the enum value to get an index into the 'table' array,
1279 * which holds the index in the 'values' array of struct value_desc.
1280 * Once we've found the entry, we do the extra checks, if any, then
1281 * look up the value and return a pointer to it.
1283 * If the value has to be computed (for example, it's the result of a
1284 * function call or we need to add 1 to it), we use the tmp 'v' to
1287 * \param func name of glGet*v() func for error reporting
1288 * \param pname the enum value we're looking up
1289 * \param p is were we return the pointer to the value
1290 * \param v a tmp union value variable in the calling glGet*v() function
1292 * \return the struct value_desc corresponding to the enum or a struct
1293 * value_desc of TYPE_INVALID if not found. This lets the calling
1294 * glGet*v() function jump right into a switch statement and
1295 * handle errors there instead of having to check for NULL.
1297 static const struct value_desc
*
1298 find_value(const char *func
, GLenum pname
, void **p
, union value
*v
)
1300 GET_CURRENT_CONTEXT(ctx
);
1301 struct gl_texture_unit
*unit
;
1303 const struct value_desc
*d
;
1307 /* We index into the table_set[] list of per-API hash tables using the API's
1308 * value in the gl_api enum. Since GLES 3 doesn't have an API_OPENGL* enum
1309 * value since it's compatible with GLES2 its entry in table_set[] is at the
1312 STATIC_ASSERT(ARRAY_SIZE(table_set
) == API_OPENGL_LAST
+ 3);
1313 if (_mesa_is_gles3(ctx
)) {
1314 api
= API_OPENGL_LAST
+ 1;
1316 if (_mesa_is_gles31(ctx
)) {
1317 api
= API_OPENGL_LAST
+ 2;
1319 mask
= ARRAY_SIZE(table(api
)) - 1;
1320 hash
= (pname
* prime_factor
);
1322 int idx
= table(api
)[hash
& mask
];
1324 /* If the enum isn't valid, the hash walk ends with index 0,
1325 * pointing to the first entry of values[] which doesn't hold
1326 * any valid enum. */
1327 if (unlikely(idx
== 0)) {
1328 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=%s)", func
,
1329 _mesa_enum_to_string(pname
));
1330 return &error_value
;
1334 if (likely(d
->pname
== pname
))
1340 if (unlikely(d
->extra
&& !check_extra(ctx
, func
, d
)))
1341 return &error_value
;
1343 switch (d
->location
) {
1345 *p
= ((char *) ctx
->DrawBuffer
+ d
->offset
);
1348 *p
= ((char *) ctx
+ d
->offset
);
1351 *p
= ((char *) ctx
->Array
.VAO
+ d
->offset
);
1354 unit
= &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1355 *p
= ((char *) unit
+ d
->offset
);
1358 find_custom_value(ctx
, d
, v
);
1366 /* silence warning */
1367 return &error_value
;
1370 static const int transpose
[] = {
1378 _mesa_GetBooleanv(GLenum pname
, GLboolean
*params
)
1380 const struct value_desc
*d
;
1386 d
= find_value("glGetBooleanv", pname
, &p
, &v
);
1391 params
[0] = INT_TO_BOOLEAN(d
->offset
);
1396 params
[3] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[3]);
1399 params
[2] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[2]);
1402 params
[1] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[1]);
1405 params
[0] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[0]);
1408 case TYPE_DOUBLEN_2
:
1409 params
[1] = FLOAT_TO_BOOLEAN(((GLdouble
*) p
)[1]);
1411 params
[0] = FLOAT_TO_BOOLEAN(((GLdouble
*) p
)[0]);
1415 params
[3] = INT_TO_BOOLEAN(((GLint
*) p
)[3]);
1417 params
[2] = INT_TO_BOOLEAN(((GLint
*) p
)[2]);
1420 params
[1] = INT_TO_BOOLEAN(((GLint
*) p
)[1]);
1423 params
[0] = INT_TO_BOOLEAN(((GLint
*) p
)[0]);
1427 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1428 params
[i
] = INT_TO_BOOLEAN(v
.value_int_n
.ints
[i
]);
1432 params
[0] = INT64_TO_BOOLEAN(((GLint64
*) p
)[0]);
1436 params
[0] = ((GLboolean
*) p
)[0];
1440 m
= *(GLmatrix
**) p
;
1441 for (i
= 0; i
< 16; i
++)
1442 params
[i
] = FLOAT_TO_BOOLEAN(m
->m
[i
]);
1446 m
= *(GLmatrix
**) p
;
1447 for (i
= 0; i
< 16; i
++)
1448 params
[i
] = FLOAT_TO_BOOLEAN(m
->m
[transpose
[i
]]);
1459 shift
= d
->type
- TYPE_BIT_0
;
1460 params
[0] = (*(GLbitfield
*) p
>> shift
) & 1;
1466 _mesa_GetFloatv(GLenum pname
, GLfloat
*params
)
1468 const struct value_desc
*d
;
1474 d
= find_value("glGetFloatv", pname
, &p
, &v
);
1479 params
[0] = (GLfloat
) d
->offset
;
1484 params
[3] = ((GLfloat
*) p
)[3];
1487 params
[2] = ((GLfloat
*) p
)[2];
1490 params
[1] = ((GLfloat
*) p
)[1];
1493 params
[0] = ((GLfloat
*) p
)[0];
1496 case TYPE_DOUBLEN_2
:
1497 params
[1] = (GLfloat
) (((GLdouble
*) p
)[1]);
1499 params
[0] = (GLfloat
) (((GLdouble
*) p
)[0]);
1503 params
[3] = (GLfloat
) (((GLint
*) p
)[3]);
1505 params
[2] = (GLfloat
) (((GLint
*) p
)[2]);
1508 params
[1] = (GLfloat
) (((GLint
*) p
)[1]);
1511 params
[0] = (GLfloat
) (((GLint
*) p
)[0]);
1515 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1516 params
[i
] = INT_TO_FLOAT(v
.value_int_n
.ints
[i
]);
1520 params
[0] = (GLfloat
) (((GLint64
*) p
)[0]);
1524 params
[0] = BOOLEAN_TO_FLOAT(*(GLboolean
*) p
);
1528 m
= *(GLmatrix
**) p
;
1529 for (i
= 0; i
< 16; i
++)
1530 params
[i
] = m
->m
[i
];
1534 m
= *(GLmatrix
**) p
;
1535 for (i
= 0; i
< 16; i
++)
1536 params
[i
] = m
->m
[transpose
[i
]];
1547 shift
= d
->type
- TYPE_BIT_0
;
1548 params
[0] = BOOLEAN_TO_FLOAT((*(GLbitfield
*) p
>> shift
) & 1);
1554 _mesa_GetIntegerv(GLenum pname
, GLint
*params
)
1556 const struct value_desc
*d
;
1562 d
= find_value("glGetIntegerv", pname
, &p
, &v
);
1567 params
[0] = d
->offset
;
1571 params
[3] = IROUND(((GLfloat
*) p
)[3]);
1573 params
[2] = IROUND(((GLfloat
*) p
)[2]);
1575 params
[1] = IROUND(((GLfloat
*) p
)[1]);
1577 params
[0] = IROUND(((GLfloat
*) p
)[0]);
1581 params
[3] = FLOAT_TO_INT(((GLfloat
*) p
)[3]);
1583 params
[2] = FLOAT_TO_INT(((GLfloat
*) p
)[2]);
1585 params
[1] = FLOAT_TO_INT(((GLfloat
*) p
)[1]);
1587 params
[0] = FLOAT_TO_INT(((GLfloat
*) p
)[0]);
1590 case TYPE_DOUBLEN_2
:
1591 params
[1] = FLOAT_TO_INT(((GLdouble
*) p
)[1]);
1593 params
[0] = FLOAT_TO_INT(((GLdouble
*) p
)[0]);
1597 params
[3] = ((GLint
*) p
)[3];
1599 params
[2] = ((GLint
*) p
)[2];
1602 params
[1] = ((GLint
*) p
)[1];
1605 params
[0] = ((GLint
*) p
)[0];
1609 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1610 params
[i
] = v
.value_int_n
.ints
[i
];
1614 params
[0] = INT64_TO_INT(((GLint64
*) p
)[0]);
1618 params
[0] = BOOLEAN_TO_INT(*(GLboolean
*) p
);
1622 m
= *(GLmatrix
**) p
;
1623 for (i
= 0; i
< 16; i
++)
1624 params
[i
] = FLOAT_TO_INT(m
->m
[i
]);
1628 m
= *(GLmatrix
**) p
;
1629 for (i
= 0; i
< 16; i
++)
1630 params
[i
] = FLOAT_TO_INT(m
->m
[transpose
[i
]]);
1641 shift
= d
->type
- TYPE_BIT_0
;
1642 params
[0] = (*(GLbitfield
*) p
>> shift
) & 1;
1648 _mesa_GetInteger64v(GLenum pname
, GLint64
*params
)
1650 const struct value_desc
*d
;
1656 d
= find_value("glGetInteger64v", pname
, &p
, &v
);
1661 params
[0] = d
->offset
;
1665 params
[3] = IROUND64(((GLfloat
*) p
)[3]);
1667 params
[2] = IROUND64(((GLfloat
*) p
)[2]);
1669 params
[1] = IROUND64(((GLfloat
*) p
)[1]);
1671 params
[0] = IROUND64(((GLfloat
*) p
)[0]);
1675 params
[3] = FLOAT_TO_INT(((GLfloat
*) p
)[3]);
1677 params
[2] = FLOAT_TO_INT(((GLfloat
*) p
)[2]);
1679 params
[1] = FLOAT_TO_INT(((GLfloat
*) p
)[1]);
1681 params
[0] = FLOAT_TO_INT(((GLfloat
*) p
)[0]);
1684 case TYPE_DOUBLEN_2
:
1685 params
[1] = FLOAT_TO_INT(((GLdouble
*) p
)[1]);
1687 params
[0] = FLOAT_TO_INT(((GLdouble
*) p
)[0]);
1691 params
[3] = ((GLint
*) p
)[3];
1693 params
[2] = ((GLint
*) p
)[2];
1696 params
[1] = ((GLint
*) p
)[1];
1699 params
[0] = ((GLint
*) p
)[0];
1703 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1704 params
[i
] = INT_TO_BOOLEAN(v
.value_int_n
.ints
[i
]);
1708 params
[0] = ((GLint64
*) p
)[0];
1712 params
[0] = ((GLboolean
*) p
)[0];
1716 m
= *(GLmatrix
**) p
;
1717 for (i
= 0; i
< 16; i
++)
1718 params
[i
] = FLOAT_TO_INT64(m
->m
[i
]);
1722 m
= *(GLmatrix
**) p
;
1723 for (i
= 0; i
< 16; i
++)
1724 params
[i
] = FLOAT_TO_INT64(m
->m
[transpose
[i
]]);
1735 shift
= d
->type
- TYPE_BIT_0
;
1736 params
[0] = (*(GLbitfield
*) p
>> shift
) & 1;
1742 _mesa_GetDoublev(GLenum pname
, GLdouble
*params
)
1744 const struct value_desc
*d
;
1750 d
= find_value("glGetDoublev", pname
, &p
, &v
);
1755 params
[0] = d
->offset
;
1760 params
[3] = ((GLfloat
*) p
)[3];
1763 params
[2] = ((GLfloat
*) p
)[2];
1766 params
[1] = ((GLfloat
*) p
)[1];
1769 params
[0] = ((GLfloat
*) p
)[0];
1772 case TYPE_DOUBLEN_2
:
1773 params
[1] = ((GLdouble
*) p
)[1];
1775 params
[0] = ((GLdouble
*) p
)[0];
1779 params
[3] = ((GLint
*) p
)[3];
1781 params
[2] = ((GLint
*) p
)[2];
1784 params
[1] = ((GLint
*) p
)[1];
1787 params
[0] = ((GLint
*) p
)[0];
1791 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1792 params
[i
] = v
.value_int_n
.ints
[i
];
1796 params
[0] = (GLdouble
) (((GLint64
*) p
)[0]);
1800 params
[0] = *(GLboolean
*) p
;
1804 m
= *(GLmatrix
**) p
;
1805 for (i
= 0; i
< 16; i
++)
1806 params
[i
] = m
->m
[i
];
1810 m
= *(GLmatrix
**) p
;
1811 for (i
= 0; i
< 16; i
++)
1812 params
[i
] = m
->m
[transpose
[i
]];
1823 shift
= d
->type
- TYPE_BIT_0
;
1824 params
[0] = (*(GLbitfield
*) p
>> shift
) & 1;
1830 * Convert a GL texture binding enum such as GL_TEXTURE_BINDING_2D
1831 * into the corresponding Mesa texture target index.
1832 * \return TEXTURE_x_INDEX or -1 if binding is invalid
1835 tex_binding_to_index(const struct gl_context
*ctx
, GLenum binding
)
1838 case GL_TEXTURE_BINDING_1D
:
1839 return _mesa_is_desktop_gl(ctx
) ? TEXTURE_1D_INDEX
: -1;
1840 case GL_TEXTURE_BINDING_2D
:
1841 return TEXTURE_2D_INDEX
;
1842 case GL_TEXTURE_BINDING_3D
:
1843 return ctx
->API
!= API_OPENGLES
? TEXTURE_3D_INDEX
: -1;
1844 case GL_TEXTURE_BINDING_CUBE_MAP
:
1845 return ctx
->Extensions
.ARB_texture_cube_map
1846 ? TEXTURE_CUBE_INDEX
: -1;
1847 case GL_TEXTURE_BINDING_RECTANGLE
:
1848 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.NV_texture_rectangle
1849 ? TEXTURE_RECT_INDEX
: -1;
1850 case GL_TEXTURE_BINDING_1D_ARRAY
:
1851 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_array
1852 ? TEXTURE_1D_ARRAY_INDEX
: -1;
1853 case GL_TEXTURE_BINDING_2D_ARRAY
:
1854 return (_mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_array
)
1855 || _mesa_is_gles3(ctx
)
1856 ? TEXTURE_2D_ARRAY_INDEX
: -1;
1857 case GL_TEXTURE_BINDING_BUFFER
:
1858 return (_mesa_has_ARB_texture_buffer_object(ctx
) ||
1859 _mesa_has_OES_texture_buffer(ctx
)) ?
1860 TEXTURE_BUFFER_INDEX
: -1;
1861 case GL_TEXTURE_BINDING_CUBE_MAP_ARRAY
:
1862 return _mesa_has_texture_cube_map_array(ctx
)
1863 ? TEXTURE_CUBE_ARRAY_INDEX
: -1;
1864 case GL_TEXTURE_BINDING_2D_MULTISAMPLE
:
1865 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.ARB_texture_multisample
1866 ? TEXTURE_2D_MULTISAMPLE_INDEX
: -1;
1867 case GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY
:
1868 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.ARB_texture_multisample
1869 ? TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX
: -1;
1875 static enum value_type
1876 find_value_indexed(const char *func
, GLenum pname
, GLuint index
, union value
*v
)
1878 GET_CURRENT_CONTEXT(ctx
);
1883 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1885 if (!ctx
->Extensions
.EXT_draw_buffers2
)
1887 v
->value_int
= (ctx
->Color
.BlendEnabled
>> index
) & 1;
1892 case GL_BLEND_SRC_RGB
:
1893 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1895 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1897 v
->value_int
= ctx
->Color
.Blend
[index
].SrcRGB
;
1899 case GL_BLEND_SRC_ALPHA
:
1900 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1902 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1904 v
->value_int
= ctx
->Color
.Blend
[index
].SrcA
;
1908 case GL_BLEND_DST_RGB
:
1909 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1911 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1913 v
->value_int
= ctx
->Color
.Blend
[index
].DstRGB
;
1915 case GL_BLEND_DST_ALPHA
:
1916 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1918 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1920 v
->value_int
= ctx
->Color
.Blend
[index
].DstA
;
1922 case GL_BLEND_EQUATION_RGB
:
1923 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1925 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1927 v
->value_int
= ctx
->Color
.Blend
[index
].EquationRGB
;
1929 case GL_BLEND_EQUATION_ALPHA
:
1930 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1932 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1934 v
->value_int
= ctx
->Color
.Blend
[index
].EquationA
;
1937 case GL_COLOR_WRITEMASK
:
1938 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1940 if (!ctx
->Extensions
.EXT_draw_buffers2
)
1942 v
->value_int_4
[0] = ctx
->Color
.ColorMask
[index
][RCOMP
] ? 1 : 0;
1943 v
->value_int_4
[1] = ctx
->Color
.ColorMask
[index
][GCOMP
] ? 1 : 0;
1944 v
->value_int_4
[2] = ctx
->Color
.ColorMask
[index
][BCOMP
] ? 1 : 0;
1945 v
->value_int_4
[3] = ctx
->Color
.ColorMask
[index
][ACOMP
] ? 1 : 0;
1948 case GL_SCISSOR_BOX
:
1949 if (index
>= ctx
->Const
.MaxViewports
)
1951 v
->value_int_4
[0] = ctx
->Scissor
.ScissorArray
[index
].X
;
1952 v
->value_int_4
[1] = ctx
->Scissor
.ScissorArray
[index
].Y
;
1953 v
->value_int_4
[2] = ctx
->Scissor
.ScissorArray
[index
].Width
;
1954 v
->value_int_4
[3] = ctx
->Scissor
.ScissorArray
[index
].Height
;
1957 case GL_WINDOW_RECTANGLE_EXT
:
1958 if (!ctx
->Extensions
.EXT_window_rectangles
)
1960 if (index
>= ctx
->Const
.MaxWindowRectangles
)
1962 v
->value_int_4
[0] = ctx
->Scissor
.WindowRects
[index
].X
;
1963 v
->value_int_4
[1] = ctx
->Scissor
.WindowRects
[index
].Y
;
1964 v
->value_int_4
[2] = ctx
->Scissor
.WindowRects
[index
].Width
;
1965 v
->value_int_4
[3] = ctx
->Scissor
.WindowRects
[index
].Height
;
1969 if (index
>= ctx
->Const
.MaxViewports
)
1971 v
->value_float_4
[0] = ctx
->ViewportArray
[index
].X
;
1972 v
->value_float_4
[1] = ctx
->ViewportArray
[index
].Y
;
1973 v
->value_float_4
[2] = ctx
->ViewportArray
[index
].Width
;
1974 v
->value_float_4
[3] = ctx
->ViewportArray
[index
].Height
;
1975 return TYPE_FLOAT_4
;
1977 case GL_DEPTH_RANGE
:
1978 if (index
>= ctx
->Const
.MaxViewports
)
1980 v
->value_double_2
[0] = ctx
->ViewportArray
[index
].Near
;
1981 v
->value_double_2
[1] = ctx
->ViewportArray
[index
].Far
;
1982 return TYPE_DOUBLEN_2
;
1984 case GL_TRANSFORM_FEEDBACK_BUFFER_START
:
1985 if (index
>= ctx
->Const
.MaxTransformFeedbackBuffers
)
1987 if (!ctx
->Extensions
.EXT_transform_feedback
)
1989 v
->value_int64
= ctx
->TransformFeedback
.CurrentObject
->Offset
[index
];
1992 case GL_TRANSFORM_FEEDBACK_BUFFER_SIZE
:
1993 if (index
>= ctx
->Const
.MaxTransformFeedbackBuffers
)
1995 if (!ctx
->Extensions
.EXT_transform_feedback
)
1998 = ctx
->TransformFeedback
.CurrentObject
->RequestedSize
[index
];
2001 case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING
:
2002 if (index
>= ctx
->Const
.MaxTransformFeedbackBuffers
)
2004 if (!ctx
->Extensions
.EXT_transform_feedback
)
2006 v
->value_int
= ctx
->TransformFeedback
.CurrentObject
->BufferNames
[index
];
2009 case GL_UNIFORM_BUFFER_BINDING
:
2010 if (index
>= ctx
->Const
.MaxUniformBufferBindings
)
2012 if (!ctx
->Extensions
.ARB_uniform_buffer_object
)
2014 v
->value_int
= ctx
->UniformBufferBindings
[index
].BufferObject
->Name
;
2017 case GL_UNIFORM_BUFFER_START
:
2018 if (index
>= ctx
->Const
.MaxUniformBufferBindings
)
2020 if (!ctx
->Extensions
.ARB_uniform_buffer_object
)
2022 v
->value_int
= ctx
->UniformBufferBindings
[index
].Offset
< 0 ? 0 :
2023 ctx
->UniformBufferBindings
[index
].Offset
;
2026 case GL_UNIFORM_BUFFER_SIZE
:
2027 if (index
>= ctx
->Const
.MaxUniformBufferBindings
)
2029 if (!ctx
->Extensions
.ARB_uniform_buffer_object
)
2031 v
->value_int
= ctx
->UniformBufferBindings
[index
].Size
< 0 ? 0 :
2032 ctx
->UniformBufferBindings
[index
].Size
;
2035 /* ARB_shader_storage_buffer_object */
2036 case GL_SHADER_STORAGE_BUFFER_BINDING
:
2037 if (!ctx
->Extensions
.ARB_shader_storage_buffer_object
)
2039 if (index
>= ctx
->Const
.MaxShaderStorageBufferBindings
)
2041 v
->value_int
= ctx
->ShaderStorageBufferBindings
[index
].BufferObject
->Name
;
2044 case GL_SHADER_STORAGE_BUFFER_START
:
2045 if (!ctx
->Extensions
.ARB_shader_storage_buffer_object
)
2047 if (index
>= ctx
->Const
.MaxShaderStorageBufferBindings
)
2049 v
->value_int
= ctx
->ShaderStorageBufferBindings
[index
].Offset
< 0 ? 0 :
2050 ctx
->ShaderStorageBufferBindings
[index
].Offset
;
2053 case GL_SHADER_STORAGE_BUFFER_SIZE
:
2054 if (!ctx
->Extensions
.ARB_shader_storage_buffer_object
)
2056 if (index
>= ctx
->Const
.MaxShaderStorageBufferBindings
)
2058 v
->value_int
= ctx
->ShaderStorageBufferBindings
[index
].Size
< 0 ? 0 :
2059 ctx
->ShaderStorageBufferBindings
[index
].Size
;
2062 /* ARB_texture_multisample / GL3.2 */
2063 case GL_SAMPLE_MASK_VALUE
:
2066 if (!ctx
->Extensions
.ARB_texture_multisample
)
2068 v
->value_int
= ctx
->Multisample
.SampleMaskValue
;
2071 case GL_ATOMIC_COUNTER_BUFFER_BINDING
:
2072 if (!ctx
->Extensions
.ARB_shader_atomic_counters
)
2074 if (index
>= ctx
->Const
.MaxAtomicBufferBindings
)
2076 v
->value_int
= ctx
->AtomicBufferBindings
[index
].BufferObject
->Name
;
2079 case GL_ATOMIC_COUNTER_BUFFER_START
:
2080 if (!ctx
->Extensions
.ARB_shader_atomic_counters
)
2082 if (index
>= ctx
->Const
.MaxAtomicBufferBindings
)
2084 v
->value_int64
= ctx
->AtomicBufferBindings
[index
].Offset
;
2087 case GL_ATOMIC_COUNTER_BUFFER_SIZE
:
2088 if (!ctx
->Extensions
.ARB_shader_atomic_counters
)
2090 if (index
>= ctx
->Const
.MaxAtomicBufferBindings
)
2092 v
->value_int64
= ctx
->AtomicBufferBindings
[index
].Size
;
2095 case GL_VERTEX_BINDING_DIVISOR
:
2096 if ((!_mesa_is_desktop_gl(ctx
) || !ctx
->Extensions
.ARB_instanced_arrays
) &&
2097 !_mesa_is_gles31(ctx
))
2099 if (index
>= ctx
->Const
.Program
[MESA_SHADER_VERTEX
].MaxAttribs
)
2101 v
->value_int
= ctx
->Array
.VAO
->VertexBinding
[VERT_ATTRIB_GENERIC(index
)].InstanceDivisor
;
2104 case GL_VERTEX_BINDING_OFFSET
:
2105 if (!_mesa_is_desktop_gl(ctx
) && !_mesa_is_gles31(ctx
))
2107 if (index
>= ctx
->Const
.Program
[MESA_SHADER_VERTEX
].MaxAttribs
)
2109 v
->value_int
= ctx
->Array
.VAO
->VertexBinding
[VERT_ATTRIB_GENERIC(index
)].Offset
;
2112 case GL_VERTEX_BINDING_STRIDE
:
2113 if (!_mesa_is_desktop_gl(ctx
) && !_mesa_is_gles31(ctx
))
2115 if (index
>= ctx
->Const
.Program
[MESA_SHADER_VERTEX
].MaxAttribs
)
2117 v
->value_int
= ctx
->Array
.VAO
->VertexBinding
[VERT_ATTRIB_GENERIC(index
)].Stride
;
2120 case GL_VERTEX_BINDING_BUFFER
:
2121 if (ctx
->API
== API_OPENGLES2
&& ctx
->Version
< 31)
2123 if (index
>= ctx
->Const
.Program
[MESA_SHADER_VERTEX
].MaxAttribs
)
2125 v
->value_int
= ctx
->Array
.VAO
->VertexBinding
[VERT_ATTRIB_GENERIC(index
)].BufferObj
->Name
;
2128 /* ARB_shader_image_load_store */
2129 case GL_IMAGE_BINDING_NAME
: {
2130 struct gl_texture_object
*t
;
2132 if (!ctx
->Extensions
.ARB_shader_image_load_store
)
2134 if (index
>= ctx
->Const
.MaxImageUnits
)
2137 t
= ctx
->ImageUnits
[index
].TexObj
;
2138 v
->value_int
= (t
? t
->Name
: 0);
2142 case GL_IMAGE_BINDING_LEVEL
:
2143 if (!ctx
->Extensions
.ARB_shader_image_load_store
)
2145 if (index
>= ctx
->Const
.MaxImageUnits
)
2148 v
->value_int
= ctx
->ImageUnits
[index
].Level
;
2151 case GL_IMAGE_BINDING_LAYERED
:
2152 if (!ctx
->Extensions
.ARB_shader_image_load_store
)
2154 if (index
>= ctx
->Const
.MaxImageUnits
)
2157 v
->value_int
= ctx
->ImageUnits
[index
].Layered
;
2160 case GL_IMAGE_BINDING_LAYER
:
2161 if (!ctx
->Extensions
.ARB_shader_image_load_store
)
2163 if (index
>= ctx
->Const
.MaxImageUnits
)
2166 v
->value_int
= ctx
->ImageUnits
[index
].Layer
;
2169 case GL_IMAGE_BINDING_ACCESS
:
2170 if (!ctx
->Extensions
.ARB_shader_image_load_store
)
2172 if (index
>= ctx
->Const
.MaxImageUnits
)
2175 v
->value_int
= ctx
->ImageUnits
[index
].Access
;
2178 case GL_IMAGE_BINDING_FORMAT
:
2179 if (!ctx
->Extensions
.ARB_shader_image_load_store
)
2181 if (index
>= ctx
->Const
.MaxImageUnits
)
2184 v
->value_int
= ctx
->ImageUnits
[index
].Format
;
2187 /* ARB_direct_state_access */
2188 case GL_TEXTURE_BINDING_1D
:
2189 case GL_TEXTURE_BINDING_1D_ARRAY
:
2190 case GL_TEXTURE_BINDING_2D
:
2191 case GL_TEXTURE_BINDING_2D_ARRAY
:
2192 case GL_TEXTURE_BINDING_2D_MULTISAMPLE
:
2193 case GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY
:
2194 case GL_TEXTURE_BINDING_3D
:
2195 case GL_TEXTURE_BINDING_BUFFER
:
2196 case GL_TEXTURE_BINDING_CUBE_MAP
:
2197 case GL_TEXTURE_BINDING_CUBE_MAP_ARRAY
:
2198 case GL_TEXTURE_BINDING_RECTANGLE
: {
2201 if (ctx
->API
!= API_OPENGL_CORE
)
2203 target
= tex_binding_to_index(ctx
, pname
);
2206 if (index
>= _mesa_max_tex_unit(ctx
))
2209 v
->value_int
= ctx
->Texture
.Unit
[index
].CurrentTex
[target
]->Name
;
2213 case GL_SAMPLER_BINDING
: {
2214 struct gl_sampler_object
*samp
;
2216 if (ctx
->API
!= API_OPENGL_CORE
)
2218 if (index
>= _mesa_max_tex_unit(ctx
))
2221 samp
= ctx
->Texture
.Unit
[index
].Sampler
;
2222 v
->value_int
= samp
? samp
->Name
: 0;
2226 case GL_MAX_COMPUTE_WORK_GROUP_COUNT
:
2227 if (!_mesa_has_compute_shaders(ctx
))
2231 v
->value_int
= ctx
->Const
.MaxComputeWorkGroupCount
[index
];
2234 case GL_MAX_COMPUTE_WORK_GROUP_SIZE
:
2235 if (!_mesa_has_compute_shaders(ctx
))
2239 v
->value_int
= ctx
->Const
.MaxComputeWorkGroupSize
[index
];
2244 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=%s)", func
,
2245 _mesa_enum_to_string(pname
));
2246 return TYPE_INVALID
;
2248 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(pname=%s)", func
,
2249 _mesa_enum_to_string(pname
));
2250 return TYPE_INVALID
;
2254 _mesa_GetBooleani_v( GLenum pname
, GLuint index
, GLboolean
*params
)
2257 enum value_type type
=
2258 find_value_indexed("glGetBooleani_v", pname
, index
, &v
);
2262 params
[0] = INT_TO_BOOLEAN(v
.value_int
);
2265 params
[0] = INT_TO_BOOLEAN(v
.value_int_4
[0]);
2266 params
[1] = INT_TO_BOOLEAN(v
.value_int_4
[1]);
2267 params
[2] = INT_TO_BOOLEAN(v
.value_int_4
[2]);
2268 params
[3] = INT_TO_BOOLEAN(v
.value_int_4
[3]);
2271 params
[0] = INT64_TO_BOOLEAN(v
.value_int64
);
2274 ; /* nothing - GL error was recorded */
2279 _mesa_GetIntegeri_v( GLenum pname
, GLuint index
, GLint
*params
)
2282 enum value_type type
=
2283 find_value_indexed("glGetIntegeri_v", pname
, index
, &v
);
2288 params
[3] = IROUND(v
.value_float_4
[3]);
2291 params
[2] = IROUND(v
.value_float_4
[2]);
2294 params
[1] = IROUND(v
.value_float_4
[1]);
2297 params
[0] = IROUND(v
.value_float_4
[0]);
2300 case TYPE_DOUBLEN_2
:
2301 params
[1] = IROUND(v
.value_double_2
[1]);
2303 params
[0] = IROUND(v
.value_double_2
[0]);
2307 params
[0] = v
.value_int
;
2310 params
[0] = v
.value_int_4
[0];
2311 params
[1] = v
.value_int_4
[1];
2312 params
[2] = v
.value_int_4
[2];
2313 params
[3] = v
.value_int_4
[3];
2316 params
[0] = INT64_TO_INT(v
.value_int64
);
2319 ; /* nothing - GL error was recorded */
2324 _mesa_GetInteger64i_v( GLenum pname
, GLuint index
, GLint64
*params
)
2327 enum value_type type
=
2328 find_value_indexed("glGetInteger64i_v", pname
, index
, &v
);
2332 params
[0] = v
.value_int
;
2335 params
[0] = v
.value_int_4
[0];
2336 params
[1] = v
.value_int_4
[1];
2337 params
[2] = v
.value_int_4
[2];
2338 params
[3] = v
.value_int_4
[3];
2341 params
[0] = v
.value_int64
;
2344 ; /* nothing - GL error was recorded */
2349 _mesa_GetFloati_v(GLenum pname
, GLuint index
, GLfloat
*params
)
2354 enum value_type type
=
2355 find_value_indexed("glGetFloati_v", pname
, index
, &v
);
2360 params
[3] = v
.value_float_4
[3];
2363 params
[2] = v
.value_float_4
[2];
2366 params
[1] = v
.value_float_4
[1];
2369 params
[0] = v
.value_float_4
[0];
2372 case TYPE_DOUBLEN_2
:
2373 params
[1] = (GLfloat
) v
.value_double_2
[1];
2375 params
[0] = (GLfloat
) v
.value_double_2
[0];
2379 params
[3] = (GLfloat
) v
.value_int_4
[3];
2381 params
[2] = (GLfloat
) v
.value_int_4
[2];
2384 params
[1] = (GLfloat
) v
.value_int_4
[1];
2387 params
[0] = (GLfloat
) v
.value_int_4
[0];
2391 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
2392 params
[i
] = INT_TO_FLOAT(v
.value_int_n
.ints
[i
]);
2396 params
[0] = (GLfloat
) v
.value_int64
;
2400 params
[0] = BOOLEAN_TO_FLOAT(v
.value_bool
);
2404 m
= *(GLmatrix
**) &v
;
2405 for (i
= 0; i
< 16; i
++)
2406 params
[i
] = m
->m
[i
];
2410 m
= *(GLmatrix
**) &v
;
2411 for (i
= 0; i
< 16; i
++)
2412 params
[i
] = m
->m
[transpose
[i
]];
2421 _mesa_GetDoublei_v(GLenum pname
, GLuint index
, GLdouble
*params
)
2426 enum value_type type
=
2427 find_value_indexed("glGetDoublei_v", pname
, index
, &v
);
2432 params
[3] = (GLdouble
) v
.value_float_4
[3];
2435 params
[2] = (GLdouble
) v
.value_float_4
[2];
2438 params
[1] = (GLdouble
) v
.value_float_4
[1];
2441 params
[0] = (GLdouble
) v
.value_float_4
[0];
2444 case TYPE_DOUBLEN_2
:
2445 params
[1] = v
.value_double_2
[1];
2447 params
[0] = v
.value_double_2
[0];
2451 params
[3] = (GLdouble
) v
.value_int_4
[3];
2453 params
[2] = (GLdouble
) v
.value_int_4
[2];
2456 params
[1] = (GLdouble
) v
.value_int_4
[1];
2459 params
[0] = (GLdouble
) v
.value_int_4
[0];
2463 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
2464 params
[i
] = (GLdouble
) INT_TO_FLOAT(v
.value_int_n
.ints
[i
]);
2468 params
[0] = (GLdouble
) v
.value_int64
;
2472 params
[0] = (GLdouble
) BOOLEAN_TO_FLOAT(v
.value_bool
);
2476 m
= *(GLmatrix
**) &v
;
2477 for (i
= 0; i
< 16; i
++)
2478 params
[i
] = (GLdouble
) m
->m
[i
];
2482 m
= *(GLmatrix
**) &v
;
2483 for (i
= 0; i
< 16; i
++)
2484 params
[i
] = (GLdouble
) m
->m
[transpose
[i
]];
2493 _mesa_GetFixedv(GLenum pname
, GLfixed
*params
)
2495 const struct value_desc
*d
;
2501 d
= find_value("glGetDoublev", pname
, &p
, &v
);
2506 params
[0] = INT_TO_FIXED(d
->offset
);
2511 params
[3] = FLOAT_TO_FIXED(((GLfloat
*) p
)[3]);
2514 params
[2] = FLOAT_TO_FIXED(((GLfloat
*) p
)[2]);
2517 params
[1] = FLOAT_TO_FIXED(((GLfloat
*) p
)[1]);
2520 params
[0] = FLOAT_TO_FIXED(((GLfloat
*) p
)[0]);
2523 case TYPE_DOUBLEN_2
:
2524 params
[1] = FLOAT_TO_FIXED(((GLdouble
*) p
)[1]);
2526 params
[0] = FLOAT_TO_FIXED(((GLdouble
*) p
)[0]);
2530 params
[3] = INT_TO_FIXED(((GLint
*) p
)[3]);
2532 params
[2] = INT_TO_FIXED(((GLint
*) p
)[2]);
2535 params
[1] = INT_TO_FIXED(((GLint
*) p
)[1]);
2538 params
[0] = INT_TO_FIXED(((GLint
*) p
)[0]);
2542 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
2543 params
[i
] = INT_TO_FIXED(v
.value_int_n
.ints
[i
]);
2547 params
[0] = ((GLint64
*) p
)[0];
2551 params
[0] = BOOLEAN_TO_FIXED(((GLboolean
*) p
)[0]);
2555 m
= *(GLmatrix
**) p
;
2556 for (i
= 0; i
< 16; i
++)
2557 params
[i
] = FLOAT_TO_FIXED(m
->m
[i
]);
2561 m
= *(GLmatrix
**) p
;
2562 for (i
= 0; i
< 16; i
++)
2563 params
[i
] = FLOAT_TO_FIXED(m
->m
[transpose
[i
]]);
2574 shift
= d
->type
- TYPE_BIT_0
;
2575 params
[0] = BOOLEAN_TO_FIXED((*(GLbitfield
*) p
>> shift
) & 1);