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 static const int extra_EXT_shader_framebuffer_fetch
[] = {
536 EXT(MESA_shader_framebuffer_fetch
),
540 /* This is the big table describing all the enums we accept in
541 * glGet*v(). The table is partitioned into six parts: enums
542 * understood by all GL APIs (OpenGL, GLES and GLES2), enums shared
543 * between OpenGL and GLES, enums exclusive to GLES, etc for the
544 * remaining combinations. To look up the enums valid in a given API
545 * we will use a hash table specific to that API. These tables are in
546 * turn generated at build time and included through get_hash.h.
549 #include "get_hash.h"
551 /* All we need now is a way to look up the value struct from the enum.
552 * The code generated by gcc for the old generated big switch
553 * statement is a big, balanced, open coded if/else tree, essentially
554 * an unrolled binary search. It would be natural to sort the new
555 * enum table and use bsearch(), but we will use a read-only hash
556 * table instead. bsearch() has a nice guaranteed worst case
557 * performance, but we're also guaranteed to hit that worst case
558 * (log2(n) iterations) for about half the enums. Instead, using an
559 * open addressing hash table, we can find the enum on the first try
560 * for 80% of the enums, 1 collision for 10% and never more than 5
561 * collisions for any enum (typical numbers). And the code is very
562 * simple, even though it feels a little magic. */
565 * Handle irregular enums
567 * Some values don't conform to the "well-known type at context
568 * pointer + offset" pattern, so we have this function to catch all
569 * the corner cases. Typically, it's a computed value or a one-off
570 * pointer to a custom struct or something.
572 * In this case we can't return a pointer to the value, so we'll have
573 * to use the temporary variable 'v' declared back in the calling
574 * glGet*v() function to store the result.
576 * \param ctx the current context
577 * \param d the struct value_desc that describes the enum
578 * \param v pointer to the tmp declared in the calling glGet*v() function
581 find_custom_value(struct gl_context
*ctx
, const struct value_desc
*d
, union value
*v
)
583 struct gl_buffer_object
**buffer_obj
;
584 struct gl_vertex_attrib_array
*array
;
588 case GL_MAJOR_VERSION
:
589 v
->value_int
= ctx
->Version
/ 10;
591 case GL_MINOR_VERSION
:
592 v
->value_int
= ctx
->Version
% 10;
598 case GL_TEXTURE_CUBE_MAP
:
599 case GL_TEXTURE_RECTANGLE_NV
:
600 case GL_TEXTURE_EXTERNAL_OES
:
601 v
->value_bool
= _mesa_IsEnabled(d
->pname
);
604 case GL_LINE_STIPPLE_PATTERN
:
605 /* This is the only GLushort, special case it here by promoting
606 * to an int rather than introducing a new type. */
607 v
->value_int
= ctx
->Line
.StipplePattern
;
610 case GL_CURRENT_RASTER_TEXTURE_COORDS
:
611 unit
= ctx
->Texture
.CurrentUnit
;
612 v
->value_float_4
[0] = ctx
->Current
.RasterTexCoords
[unit
][0];
613 v
->value_float_4
[1] = ctx
->Current
.RasterTexCoords
[unit
][1];
614 v
->value_float_4
[2] = ctx
->Current
.RasterTexCoords
[unit
][2];
615 v
->value_float_4
[3] = ctx
->Current
.RasterTexCoords
[unit
][3];
618 case GL_CURRENT_TEXTURE_COORDS
:
619 unit
= ctx
->Texture
.CurrentUnit
;
620 v
->value_float_4
[0] = ctx
->Current
.Attrib
[VERT_ATTRIB_TEX0
+ unit
][0];
621 v
->value_float_4
[1] = ctx
->Current
.Attrib
[VERT_ATTRIB_TEX0
+ unit
][1];
622 v
->value_float_4
[2] = ctx
->Current
.Attrib
[VERT_ATTRIB_TEX0
+ unit
][2];
623 v
->value_float_4
[3] = ctx
->Current
.Attrib
[VERT_ATTRIB_TEX0
+ unit
][3];
626 case GL_COLOR_WRITEMASK
:
627 v
->value_int_4
[0] = ctx
->Color
.ColorMask
[0][RCOMP
] ? 1 : 0;
628 v
->value_int_4
[1] = ctx
->Color
.ColorMask
[0][GCOMP
] ? 1 : 0;
629 v
->value_int_4
[2] = ctx
->Color
.ColorMask
[0][BCOMP
] ? 1 : 0;
630 v
->value_int_4
[3] = ctx
->Color
.ColorMask
[0][ACOMP
] ? 1 : 0;
634 v
->value_bool
= ctx
->Current
.Attrib
[VERT_ATTRIB_EDGEFLAG
][0] == 1.0F
;
638 v
->value_enum
= ctx
->ReadBuffer
->ColorReadBuffer
;
641 case GL_MAP2_GRID_DOMAIN
:
642 v
->value_float_4
[0] = ctx
->Eval
.MapGrid2u1
;
643 v
->value_float_4
[1] = ctx
->Eval
.MapGrid2u2
;
644 v
->value_float_4
[2] = ctx
->Eval
.MapGrid2v1
;
645 v
->value_float_4
[3] = ctx
->Eval
.MapGrid2v2
;
648 case GL_TEXTURE_STACK_DEPTH
:
649 unit
= ctx
->Texture
.CurrentUnit
;
650 v
->value_int
= ctx
->TextureMatrixStack
[unit
].Depth
+ 1;
652 case GL_TEXTURE_MATRIX
:
653 unit
= ctx
->Texture
.CurrentUnit
;
654 v
->value_matrix
= ctx
->TextureMatrixStack
[unit
].Top
;
657 case GL_TEXTURE_COORD_ARRAY
:
658 case GL_TEXTURE_COORD_ARRAY_SIZE
:
659 case GL_TEXTURE_COORD_ARRAY_TYPE
:
660 case GL_TEXTURE_COORD_ARRAY_STRIDE
:
661 array
= &ctx
->Array
.VAO
->VertexAttrib
[VERT_ATTRIB_TEX(ctx
->Array
.ActiveTexture
)];
662 v
->value_int
= *(GLuint
*) ((char *) array
+ d
->offset
);
665 case GL_ACTIVE_TEXTURE_ARB
:
666 v
->value_int
= GL_TEXTURE0_ARB
+ ctx
->Texture
.CurrentUnit
;
668 case GL_CLIENT_ACTIVE_TEXTURE_ARB
:
669 v
->value_int
= GL_TEXTURE0_ARB
+ ctx
->Array
.ActiveTexture
;
672 case GL_MODELVIEW_STACK_DEPTH
:
673 case GL_PROJECTION_STACK_DEPTH
:
674 v
->value_int
= *(GLint
*) ((char *) ctx
+ d
->offset
) + 1;
677 case GL_MAX_TEXTURE_SIZE
:
678 case GL_MAX_3D_TEXTURE_SIZE
:
679 case GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB
:
680 p
= (GLuint
*) ((char *) ctx
+ d
->offset
);
681 v
->value_int
= 1 << (*p
- 1);
685 v
->value_int_4
[0] = ctx
->Scissor
.ScissorArray
[0].X
;
686 v
->value_int_4
[1] = ctx
->Scissor
.ScissorArray
[0].Y
;
687 v
->value_int_4
[2] = ctx
->Scissor
.ScissorArray
[0].Width
;
688 v
->value_int_4
[3] = ctx
->Scissor
.ScissorArray
[0].Height
;
691 case GL_SCISSOR_TEST
:
692 v
->value_bool
= ctx
->Scissor
.EnableFlags
& 1;
697 ctx
->ListState
.CurrentList
? ctx
->ListState
.CurrentList
->Name
: 0;
700 if (!ctx
->CompileFlag
)
702 else if (ctx
->ExecuteFlag
)
703 v
->value_enum
= GL_COMPILE_AND_EXECUTE
;
705 v
->value_enum
= GL_COMPILE
;
709 v
->value_float_4
[0] = ctx
->ViewportArray
[0].X
;
710 v
->value_float_4
[1] = ctx
->ViewportArray
[0].Y
;
711 v
->value_float_4
[2] = ctx
->ViewportArray
[0].Width
;
712 v
->value_float_4
[3] = ctx
->ViewportArray
[0].Height
;
716 v
->value_double_2
[0] = ctx
->ViewportArray
[0].Near
;
717 v
->value_double_2
[1] = ctx
->ViewportArray
[0].Far
;
720 case GL_ACTIVE_STENCIL_FACE_EXT
:
721 v
->value_enum
= ctx
->Stencil
.ActiveFace
? GL_BACK
: GL_FRONT
;
724 case GL_STENCIL_FAIL
:
725 v
->value_enum
= ctx
->Stencil
.FailFunc
[ctx
->Stencil
.ActiveFace
];
727 case GL_STENCIL_FUNC
:
728 v
->value_enum
= ctx
->Stencil
.Function
[ctx
->Stencil
.ActiveFace
];
730 case GL_STENCIL_PASS_DEPTH_FAIL
:
731 v
->value_enum
= ctx
->Stencil
.ZFailFunc
[ctx
->Stencil
.ActiveFace
];
733 case GL_STENCIL_PASS_DEPTH_PASS
:
734 v
->value_enum
= ctx
->Stencil
.ZPassFunc
[ctx
->Stencil
.ActiveFace
];
737 v
->value_int
= _mesa_get_stencil_ref(ctx
, ctx
->Stencil
.ActiveFace
);
739 case GL_STENCIL_BACK_REF
:
740 v
->value_int
= _mesa_get_stencil_ref(ctx
, 1);
742 case GL_STENCIL_VALUE_MASK
:
743 v
->value_int
= ctx
->Stencil
.ValueMask
[ctx
->Stencil
.ActiveFace
];
745 case GL_STENCIL_WRITEMASK
:
746 v
->value_int
= ctx
->Stencil
.WriteMask
[ctx
->Stencil
.ActiveFace
];
749 case GL_NUM_EXTENSIONS
:
750 v
->value_int
= _mesa_get_extension_count(ctx
);
753 case GL_IMPLEMENTATION_COLOR_READ_TYPE_OES
:
754 v
->value_int
= _mesa_get_color_read_type(ctx
);
756 case GL_IMPLEMENTATION_COLOR_READ_FORMAT_OES
:
757 v
->value_int
= _mesa_get_color_read_format(ctx
);
760 case GL_CURRENT_MATRIX_STACK_DEPTH_ARB
:
761 v
->value_int
= ctx
->CurrentStack
->Depth
+ 1;
763 case GL_CURRENT_MATRIX_ARB
:
764 case GL_TRANSPOSE_CURRENT_MATRIX_ARB
:
765 v
->value_matrix
= ctx
->CurrentStack
->Top
;
768 case GL_NUM_COMPRESSED_TEXTURE_FORMATS_ARB
:
769 v
->value_int
= _mesa_get_compressed_formats(ctx
, NULL
);
771 case GL_COMPRESSED_TEXTURE_FORMATS_ARB
:
773 _mesa_get_compressed_formats(ctx
, v
->value_int_n
.ints
);
774 assert(v
->value_int_n
.n
<= (int) ARRAY_SIZE(v
->value_int_n
.ints
));
777 case GL_MAX_VARYING_FLOATS_ARB
:
778 v
->value_int
= ctx
->Const
.MaxVarying
* 4;
781 /* Various object names */
783 case GL_TEXTURE_BINDING_1D
:
784 case GL_TEXTURE_BINDING_2D
:
785 case GL_TEXTURE_BINDING_3D
:
786 case GL_TEXTURE_BINDING_1D_ARRAY_EXT
:
787 case GL_TEXTURE_BINDING_2D_ARRAY_EXT
:
788 case GL_TEXTURE_BINDING_CUBE_MAP_ARB
:
789 case GL_TEXTURE_BINDING_RECTANGLE_NV
:
790 case GL_TEXTURE_BINDING_EXTERNAL_OES
:
791 case GL_TEXTURE_BINDING_CUBE_MAP_ARRAY
:
792 case GL_TEXTURE_BINDING_2D_MULTISAMPLE
:
793 case GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY
:
794 unit
= ctx
->Texture
.CurrentUnit
;
796 ctx
->Texture
.Unit
[unit
].CurrentTex
[d
->offset
]->Name
;
799 /* GL_EXT_packed_float */
800 case GL_RGBA_SIGNED_COMPONENTS_EXT
:
802 /* Note: we only check the 0th color attachment. */
803 const struct gl_renderbuffer
*rb
=
804 ctx
->DrawBuffer
->_ColorDrawBuffers
[0];
805 if (rb
&& _mesa_is_format_signed(rb
->Format
)) {
806 /* Issue 17 of GL_EXT_packed_float: If a component (such as
807 * alpha) has zero bits, the component should not be considered
808 * signed and so the bit for the respective component should be
812 _mesa_get_format_bits(rb
->Format
, GL_RED_BITS
);
814 _mesa_get_format_bits(rb
->Format
, GL_GREEN_BITS
);
816 _mesa_get_format_bits(rb
->Format
, GL_BLUE_BITS
);
818 _mesa_get_format_bits(rb
->Format
, GL_ALPHA_BITS
);
820 _mesa_get_format_bits(rb
->Format
, GL_TEXTURE_LUMINANCE_SIZE
);
822 _mesa_get_format_bits(rb
->Format
, GL_TEXTURE_INTENSITY_SIZE
);
824 v
->value_int_4
[0] = r_bits
+ l_bits
+ i_bits
> 0;
825 v
->value_int_4
[1] = g_bits
+ l_bits
+ i_bits
> 0;
826 v
->value_int_4
[2] = b_bits
+ l_bits
+ i_bits
> 0;
827 v
->value_int_4
[3] = a_bits
+ i_bits
> 0;
833 v
->value_int_4
[3] = 0;
838 /* GL_ARB_vertex_buffer_object */
839 case GL_VERTEX_ARRAY_BUFFER_BINDING_ARB
:
840 case GL_NORMAL_ARRAY_BUFFER_BINDING_ARB
:
841 case GL_COLOR_ARRAY_BUFFER_BINDING_ARB
:
842 case GL_INDEX_ARRAY_BUFFER_BINDING_ARB
:
843 case GL_EDGE_FLAG_ARRAY_BUFFER_BINDING_ARB
:
844 case GL_SECONDARY_COLOR_ARRAY_BUFFER_BINDING_ARB
:
845 case GL_FOG_COORDINATE_ARRAY_BUFFER_BINDING_ARB
:
846 buffer_obj
= (struct gl_buffer_object
**)
847 ((char *) ctx
->Array
.VAO
+ d
->offset
);
848 v
->value_int
= (*buffer_obj
)->Name
;
850 case GL_ARRAY_BUFFER_BINDING_ARB
:
851 v
->value_int
= ctx
->Array
.ArrayBufferObj
->Name
;
853 case GL_TEXTURE_COORD_ARRAY_BUFFER_BINDING_ARB
:
855 ctx
->Array
.VAO
->VertexBinding
[VERT_ATTRIB_TEX(ctx
->Array
.ActiveTexture
)].BufferObj
->Name
;
857 case GL_ELEMENT_ARRAY_BUFFER_BINDING_ARB
:
858 v
->value_int
= ctx
->Array
.VAO
->IndexBufferObj
->Name
;
861 /* ARB_vertex_array_bgra */
862 case GL_COLOR_ARRAY_SIZE
:
863 array
= &ctx
->Array
.VAO
->VertexAttrib
[VERT_ATTRIB_COLOR0
];
864 v
->value_int
= array
->Format
== GL_BGRA
? GL_BGRA
: array
->Size
;
866 case GL_SECONDARY_COLOR_ARRAY_SIZE
:
867 array
= &ctx
->Array
.VAO
->VertexAttrib
[VERT_ATTRIB_COLOR1
];
868 v
->value_int
= array
->Format
== GL_BGRA
? GL_BGRA
: array
->Size
;
871 /* ARB_copy_buffer */
872 case GL_COPY_READ_BUFFER
:
873 v
->value_int
= ctx
->CopyReadBuffer
->Name
;
875 case GL_COPY_WRITE_BUFFER
:
876 v
->value_int
= ctx
->CopyWriteBuffer
->Name
;
879 case GL_PIXEL_PACK_BUFFER_BINDING_EXT
:
880 v
->value_int
= ctx
->Pack
.BufferObj
->Name
;
882 case GL_PIXEL_UNPACK_BUFFER_BINDING_EXT
:
883 v
->value_int
= ctx
->Unpack
.BufferObj
->Name
;
885 case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING
:
886 v
->value_int
= ctx
->TransformFeedback
.CurrentBuffer
->Name
;
888 case GL_TRANSFORM_FEEDBACK_BUFFER_PAUSED
:
889 v
->value_int
= ctx
->TransformFeedback
.CurrentObject
->Paused
;
891 case GL_TRANSFORM_FEEDBACK_BUFFER_ACTIVE
:
892 v
->value_int
= ctx
->TransformFeedback
.CurrentObject
->Active
;
894 case GL_TRANSFORM_FEEDBACK_BINDING
:
895 v
->value_int
= ctx
->TransformFeedback
.CurrentObject
->Name
;
897 case GL_CURRENT_PROGRAM
:
898 /* The Changelog of the ARB_separate_shader_objects spec says:
900 * 24 25 Jul 2011 pbrown Remove the language erroneously deleting
901 * CURRENT_PROGRAM. In the EXT extension, this
902 * token was aliased to ACTIVE_PROGRAM_EXT, and
903 * was used to indicate the last program set by
904 * either ActiveProgramEXT or UseProgram. In
905 * the ARB extension, the SSO active programs
906 * are now program pipeline object state and
907 * CURRENT_PROGRAM should still be used to query
908 * the last program set by UseProgram (bug 7822).
911 ctx
->Shader
.ActiveProgram
? ctx
->Shader
.ActiveProgram
->Name
: 0;
913 case GL_READ_FRAMEBUFFER_BINDING_EXT
:
914 v
->value_int
= ctx
->ReadBuffer
->Name
;
916 case GL_RENDERBUFFER_BINDING_EXT
:
918 ctx
->CurrentRenderbuffer
? ctx
->CurrentRenderbuffer
->Name
: 0;
920 case GL_POINT_SIZE_ARRAY_BUFFER_BINDING_OES
:
921 v
->value_int
= ctx
->Array
.VAO
->VertexBinding
[VERT_ATTRIB_POINT_SIZE
].BufferObj
->Name
;
925 if (_mesa_get_clamp_fragment_color(ctx
, ctx
->DrawBuffer
))
926 COPY_4FV(v
->value_float_4
, ctx
->Fog
.Color
);
928 COPY_4FV(v
->value_float_4
, ctx
->Fog
.ColorUnclamped
);
930 case GL_COLOR_CLEAR_VALUE
:
931 if (_mesa_get_clamp_fragment_color(ctx
, ctx
->DrawBuffer
)) {
932 v
->value_float_4
[0] = CLAMP(ctx
->Color
.ClearColor
.f
[0], 0.0F
, 1.0F
);
933 v
->value_float_4
[1] = CLAMP(ctx
->Color
.ClearColor
.f
[1], 0.0F
, 1.0F
);
934 v
->value_float_4
[2] = CLAMP(ctx
->Color
.ClearColor
.f
[2], 0.0F
, 1.0F
);
935 v
->value_float_4
[3] = CLAMP(ctx
->Color
.ClearColor
.f
[3], 0.0F
, 1.0F
);
937 COPY_4FV(v
->value_float_4
, ctx
->Color
.ClearColor
.f
);
939 case GL_BLEND_COLOR_EXT
:
940 if (_mesa_get_clamp_fragment_color(ctx
, ctx
->DrawBuffer
))
941 COPY_4FV(v
->value_float_4
, ctx
->Color
.BlendColor
);
943 COPY_4FV(v
->value_float_4
, ctx
->Color
.BlendColorUnclamped
);
945 case GL_ALPHA_TEST_REF
:
946 if (_mesa_get_clamp_fragment_color(ctx
, ctx
->DrawBuffer
))
947 v
->value_float
= ctx
->Color
.AlphaRef
;
949 v
->value_float
= ctx
->Color
.AlphaRefUnclamped
;
951 case GL_MAX_VERTEX_UNIFORM_VECTORS
:
952 v
->value_int
= ctx
->Const
.Program
[MESA_SHADER_VERTEX
].MaxUniformComponents
/ 4;
955 case GL_MAX_FRAGMENT_UNIFORM_VECTORS
:
956 v
->value_int
= ctx
->Const
.Program
[MESA_SHADER_FRAGMENT
].MaxUniformComponents
/ 4;
959 /* GL_ARB_texture_buffer_object */
960 case GL_TEXTURE_BUFFER_ARB
:
961 v
->value_int
= ctx
->Texture
.BufferObject
->Name
;
963 case GL_TEXTURE_BINDING_BUFFER_ARB
:
964 unit
= ctx
->Texture
.CurrentUnit
;
966 ctx
->Texture
.Unit
[unit
].CurrentTex
[TEXTURE_BUFFER_INDEX
]->Name
;
968 case GL_TEXTURE_BUFFER_DATA_STORE_BINDING_ARB
:
970 struct gl_buffer_object
*buf
=
971 ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
]
972 .CurrentTex
[TEXTURE_BUFFER_INDEX
]->BufferObject
;
973 v
->value_int
= buf
? buf
->Name
: 0;
976 case GL_TEXTURE_BUFFER_FORMAT_ARB
:
977 v
->value_int
= ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
]
978 .CurrentTex
[TEXTURE_BUFFER_INDEX
]->BufferObjectFormat
;
981 /* GL_ARB_sampler_objects */
982 case GL_SAMPLER_BINDING
:
984 struct gl_sampler_object
*samp
=
985 ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
].Sampler
;
986 v
->value_int
= samp
? samp
->Name
: 0;
989 /* GL_ARB_uniform_buffer_object */
990 case GL_UNIFORM_BUFFER_BINDING
:
991 v
->value_int
= ctx
->UniformBuffer
->Name
;
993 /* GL_ARB_shader_storage_buffer_object */
994 case GL_SHADER_STORAGE_BUFFER_BINDING
:
995 v
->value_int
= ctx
->ShaderStorageBuffer
->Name
;
997 /* GL_ARB_query_buffer_object */
998 case GL_QUERY_BUFFER_BINDING
:
999 v
->value_int
= ctx
->QueryBuffer
->Name
;
1001 /* GL_ARB_timer_query */
1003 if (ctx
->Driver
.GetTimestamp
) {
1004 v
->value_int64
= ctx
->Driver
.GetTimestamp(ctx
);
1007 _mesa_problem(ctx
, "driver doesn't implement GetTimestamp");
1011 case GL_DEBUG_OUTPUT
:
1012 case GL_DEBUG_OUTPUT_SYNCHRONOUS
:
1013 case GL_DEBUG_LOGGED_MESSAGES
:
1014 case GL_DEBUG_NEXT_LOGGED_MESSAGE_LENGTH
:
1015 case GL_DEBUG_GROUP_STACK_DEPTH
:
1016 v
->value_int
= _mesa_get_debug_state_int(ctx
, d
->pname
);
1018 /* GL_ARB_shader_atomic_counters */
1019 case GL_ATOMIC_COUNTER_BUFFER_BINDING
:
1020 if (ctx
->AtomicBuffer
) {
1021 v
->value_int
= ctx
->AtomicBuffer
->Name
;
1026 /* GL_ARB_draw_indirect */
1027 case GL_DRAW_INDIRECT_BUFFER_BINDING
:
1028 v
->value_int
= ctx
->DrawIndirectBuffer
->Name
;
1030 /* GL_ARB_indirect_parameters */
1031 case GL_PARAMETER_BUFFER_BINDING_ARB
:
1032 v
->value_int
= ctx
->ParameterBuffer
->Name
;
1034 /* GL_ARB_separate_shader_objects */
1035 case GL_PROGRAM_PIPELINE_BINDING
:
1036 if (ctx
->Pipeline
.Current
) {
1037 v
->value_int
= ctx
->Pipeline
.Current
->Name
;
1042 /* GL_ARB_compute_shader */
1043 case GL_DISPATCH_INDIRECT_BUFFER_BINDING
:
1044 v
->value_int
= ctx
->DispatchIndirectBuffer
->Name
;
1046 /* GL_ARB_multisample */
1048 v
->value_int
= _mesa_geometric_samples(ctx
->DrawBuffer
);
1050 case GL_SAMPLE_BUFFERS
:
1051 v
->value_int
= _mesa_geometric_samples(ctx
->DrawBuffer
) > 0;
1053 /* GL_ATI_meminfo & GL_NVX_gpu_memory_info */
1054 case GL_VBO_FREE_MEMORY_ATI
:
1055 case GL_TEXTURE_FREE_MEMORY_ATI
:
1056 case GL_RENDERBUFFER_FREE_MEMORY_ATI
:
1057 case GL_GPU_MEMORY_INFO_DEDICATED_VIDMEM_NVX
:
1058 case GL_GPU_MEMORY_INFO_TOTAL_AVAILABLE_MEMORY_NVX
:
1059 case GL_GPU_MEMORY_INFO_CURRENT_AVAILABLE_VIDMEM_NVX
:
1060 case GL_GPU_MEMORY_INFO_EVICTION_COUNT_NVX
:
1061 case GL_GPU_MEMORY_INFO_EVICTED_MEMORY_NVX
:
1063 struct gl_memory_info info
;
1065 ctx
->Driver
.QueryMemoryInfo(ctx
, &info
);
1067 if (d
->pname
== GL_GPU_MEMORY_INFO_DEDICATED_VIDMEM_NVX
)
1068 v
->value_int
= info
.total_device_memory
;
1069 else if (d
->pname
== GL_GPU_MEMORY_INFO_TOTAL_AVAILABLE_MEMORY_NVX
)
1070 v
->value_int
= info
.total_device_memory
+
1071 info
.total_staging_memory
;
1072 else if (d
->pname
== GL_GPU_MEMORY_INFO_CURRENT_AVAILABLE_VIDMEM_NVX
)
1073 v
->value_int
= info
.avail_device_memory
;
1074 else if (d
->pname
== GL_GPU_MEMORY_INFO_EVICTION_COUNT_NVX
)
1075 v
->value_int
= info
.nr_device_memory_evictions
;
1076 else if (d
->pname
== GL_GPU_MEMORY_INFO_EVICTED_MEMORY_NVX
)
1077 v
->value_int
= info
.device_memory_evicted
;
1079 /* ATI free memory enums.
1081 * Since the GPU memory is (usually) page-table based, every two
1082 * consecutive elements are equal. From the GL_ATI_meminfo
1085 * "param[0] - total memory free in the pool
1086 * param[1] - largest available free block in the pool
1087 * param[2] - total auxiliary memory free
1088 * param[3] - largest auxiliary free block"
1090 * All three (VBO, TEXTURE, RENDERBUFFER) queries return
1091 * the same numbers here.
1093 v
->value_int_4
[0] = info
.avail_device_memory
;
1094 v
->value_int_4
[1] = info
.avail_device_memory
;
1095 v
->value_int_4
[2] = info
.avail_staging_memory
;
1096 v
->value_int_4
[3] = info
.avail_staging_memory
;
1104 * Check extra constraints on a struct value_desc descriptor
1106 * If a struct value_desc has a non-NULL extra pointer, it means that
1107 * there are a number of extra constraints to check or actions to
1108 * perform. The extras is just an integer array where each integer
1109 * encode different constraints or actions.
1111 * \param ctx current context
1112 * \param func name of calling glGet*v() function for error reporting
1113 * \param d the struct value_desc that has the extra constraints
1115 * \return GL_FALSE if all of the constraints were not satisfied,
1116 * otherwise GL_TRUE.
1119 check_extra(struct gl_context
*ctx
, const char *func
, const struct value_desc
*d
)
1121 const GLuint version
= ctx
->Version
;
1122 GLboolean api_check
= GL_FALSE
;
1123 GLboolean api_found
= GL_FALSE
;
1126 for (e
= d
->extra
; *e
!= EXTRA_END
; e
++) {
1128 case EXTRA_VERSION_30
:
1129 api_check
= GL_TRUE
;
1131 api_found
= GL_TRUE
;
1133 case EXTRA_VERSION_31
:
1134 api_check
= GL_TRUE
;
1136 api_found
= GL_TRUE
;
1138 case EXTRA_VERSION_32
:
1139 api_check
= GL_TRUE
;
1141 api_found
= GL_TRUE
;
1143 case EXTRA_NEW_FRAG_CLAMP
:
1144 if (ctx
->NewState
& (_NEW_BUFFERS
| _NEW_FRAG_CLAMP
))
1145 _mesa_update_state(ctx
);
1148 api_check
= GL_TRUE
;
1149 if (ctx
->API
== API_OPENGLES2
)
1150 api_found
= GL_TRUE
;
1153 api_check
= GL_TRUE
;
1154 if (_mesa_is_gles3(ctx
))
1155 api_found
= GL_TRUE
;
1157 case EXTRA_API_ES31
:
1158 api_check
= GL_TRUE
;
1159 if (_mesa_is_gles31(ctx
))
1160 api_found
= GL_TRUE
;
1163 api_check
= GL_TRUE
;
1164 if (_mesa_is_desktop_gl(ctx
))
1165 api_found
= GL_TRUE
;
1167 case EXTRA_API_GL_CORE
:
1168 api_check
= GL_TRUE
;
1169 if (ctx
->API
== API_OPENGL_CORE
)
1170 api_found
= GL_TRUE
;
1172 case EXTRA_NEW_BUFFERS
:
1173 if (ctx
->NewState
& _NEW_BUFFERS
)
1174 _mesa_update_state(ctx
);
1176 case EXTRA_FLUSH_CURRENT
:
1177 FLUSH_CURRENT(ctx
, 0);
1179 case EXTRA_VALID_DRAW_BUFFER
:
1180 if (d
->pname
- GL_DRAW_BUFFER0_ARB
>= ctx
->Const
.MaxDrawBuffers
) {
1181 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(draw buffer %u)",
1182 func
, d
->pname
- GL_DRAW_BUFFER0_ARB
);
1186 case EXTRA_VALID_TEXTURE_UNIT
:
1187 if (ctx
->Texture
.CurrentUnit
>= ctx
->Const
.MaxTextureCoordUnits
) {
1188 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(texture %u)",
1189 func
, ctx
->Texture
.CurrentUnit
);
1193 case EXTRA_VALID_CLIP_DISTANCE
:
1194 if (d
->pname
- GL_CLIP_DISTANCE0
>= ctx
->Const
.MaxClipPlanes
) {
1195 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(clip distance %u)",
1196 func
, d
->pname
- GL_CLIP_DISTANCE0
);
1200 case EXTRA_GLSL_130
:
1201 api_check
= GL_TRUE
;
1202 if (ctx
->Const
.GLSLVersion
>= 130)
1203 api_found
= GL_TRUE
;
1205 case EXTRA_EXT_UBO_GS
:
1206 api_check
= GL_TRUE
;
1207 if (ctx
->Extensions
.ARB_uniform_buffer_object
&&
1208 _mesa_has_geometry_shaders(ctx
))
1209 api_found
= GL_TRUE
;
1211 case EXTRA_EXT_ATOMICS_GS
:
1212 api_check
= GL_TRUE
;
1213 if (ctx
->Extensions
.ARB_shader_atomic_counters
&&
1214 _mesa_has_geometry_shaders(ctx
))
1215 api_found
= GL_TRUE
;
1217 case EXTRA_EXT_SHADER_IMAGE_GS
:
1218 api_check
= GL_TRUE
;
1219 if (ctx
->Extensions
.ARB_shader_image_load_store
&&
1220 _mesa_has_geometry_shaders(ctx
))
1221 api_found
= GL_TRUE
;
1223 case EXTRA_EXT_ATOMICS_TESS
:
1224 api_check
= GL_TRUE
;
1225 api_found
= ctx
->Extensions
.ARB_shader_atomic_counters
&&
1226 _mesa_has_tessellation(ctx
);
1228 case EXTRA_EXT_SHADER_IMAGE_TESS
:
1229 api_check
= GL_TRUE
;
1230 api_found
= ctx
->Extensions
.ARB_shader_image_load_store
&&
1231 _mesa_has_tessellation(ctx
);
1233 case EXTRA_EXT_SSBO_GS
:
1234 api_check
= GL_TRUE
;
1235 if (ctx
->Extensions
.ARB_shader_storage_buffer_object
&&
1236 _mesa_has_geometry_shaders(ctx
))
1237 api_found
= GL_TRUE
;
1239 case EXTRA_EXT_FB_NO_ATTACH_GS
:
1240 api_check
= GL_TRUE
;
1241 if (ctx
->Extensions
.ARB_framebuffer_no_attachments
&&
1242 (_mesa_is_desktop_gl(ctx
) ||
1243 _mesa_has_OES_geometry_shader(ctx
)))
1244 api_found
= GL_TRUE
;
1246 case EXTRA_EXT_ES_GS
:
1247 api_check
= GL_TRUE
;
1248 if (_mesa_has_OES_geometry_shader(ctx
))
1249 api_found
= GL_TRUE
;
1253 default: /* *e is a offset into the extension struct */
1254 api_check
= GL_TRUE
;
1255 if (*(GLboolean
*) ((char *) &ctx
->Extensions
+ *e
))
1256 api_found
= GL_TRUE
;
1261 if (api_check
&& !api_found
) {
1262 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=%s)", func
,
1263 _mesa_enum_to_string(d
->pname
));
1270 static const struct value_desc error_value
=
1271 { 0, 0, TYPE_INVALID
, NO_OFFSET
, NO_EXTRA
};
1274 * Find the struct value_desc corresponding to the enum 'pname'.
1276 * We hash the enum value to get an index into the 'table' array,
1277 * which holds the index in the 'values' array of struct value_desc.
1278 * Once we've found the entry, we do the extra checks, if any, then
1279 * look up the value and return a pointer to it.
1281 * If the value has to be computed (for example, it's the result of a
1282 * function call or we need to add 1 to it), we use the tmp 'v' to
1285 * \param func name of glGet*v() func for error reporting
1286 * \param pname the enum value we're looking up
1287 * \param p is were we return the pointer to the value
1288 * \param v a tmp union value variable in the calling glGet*v() function
1290 * \return the struct value_desc corresponding to the enum or a struct
1291 * value_desc of TYPE_INVALID if not found. This lets the calling
1292 * glGet*v() function jump right into a switch statement and
1293 * handle errors there instead of having to check for NULL.
1295 static const struct value_desc
*
1296 find_value(const char *func
, GLenum pname
, void **p
, union value
*v
)
1298 GET_CURRENT_CONTEXT(ctx
);
1299 struct gl_texture_unit
*unit
;
1301 const struct value_desc
*d
;
1305 /* We index into the table_set[] list of per-API hash tables using the API's
1306 * value in the gl_api enum. Since GLES 3 doesn't have an API_OPENGL* enum
1307 * value since it's compatible with GLES2 its entry in table_set[] is at the
1310 STATIC_ASSERT(ARRAY_SIZE(table_set
) == API_OPENGL_LAST
+ 3);
1311 if (_mesa_is_gles3(ctx
)) {
1312 api
= API_OPENGL_LAST
+ 1;
1314 if (_mesa_is_gles31(ctx
)) {
1315 api
= API_OPENGL_LAST
+ 2;
1317 mask
= ARRAY_SIZE(table(api
)) - 1;
1318 hash
= (pname
* prime_factor
);
1320 int idx
= table(api
)[hash
& mask
];
1322 /* If the enum isn't valid, the hash walk ends with index 0,
1323 * pointing to the first entry of values[] which doesn't hold
1324 * any valid enum. */
1325 if (unlikely(idx
== 0)) {
1326 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=%s)", func
,
1327 _mesa_enum_to_string(pname
));
1328 return &error_value
;
1332 if (likely(d
->pname
== pname
))
1338 if (unlikely(d
->extra
&& !check_extra(ctx
, func
, d
)))
1339 return &error_value
;
1341 switch (d
->location
) {
1343 *p
= ((char *) ctx
->DrawBuffer
+ d
->offset
);
1346 *p
= ((char *) ctx
+ d
->offset
);
1349 *p
= ((char *) ctx
->Array
.VAO
+ d
->offset
);
1352 unit
= &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1353 *p
= ((char *) unit
+ d
->offset
);
1356 find_custom_value(ctx
, d
, v
);
1364 /* silence warning */
1365 return &error_value
;
1368 static const int transpose
[] = {
1376 _mesa_GetBooleanv(GLenum pname
, GLboolean
*params
)
1378 const struct value_desc
*d
;
1384 d
= find_value("glGetBooleanv", pname
, &p
, &v
);
1389 params
[0] = INT_TO_BOOLEAN(d
->offset
);
1394 params
[3] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[3]);
1397 params
[2] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[2]);
1400 params
[1] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[1]);
1403 params
[0] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[0]);
1406 case TYPE_DOUBLEN_2
:
1407 params
[1] = FLOAT_TO_BOOLEAN(((GLdouble
*) p
)[1]);
1409 params
[0] = FLOAT_TO_BOOLEAN(((GLdouble
*) p
)[0]);
1413 params
[3] = INT_TO_BOOLEAN(((GLint
*) p
)[3]);
1415 params
[2] = INT_TO_BOOLEAN(((GLint
*) p
)[2]);
1418 params
[1] = INT_TO_BOOLEAN(((GLint
*) p
)[1]);
1421 params
[0] = INT_TO_BOOLEAN(((GLint
*) p
)[0]);
1425 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1426 params
[i
] = INT_TO_BOOLEAN(v
.value_int_n
.ints
[i
]);
1430 params
[0] = INT64_TO_BOOLEAN(((GLint64
*) p
)[0]);
1434 params
[0] = ((GLboolean
*) p
)[0];
1438 m
= *(GLmatrix
**) p
;
1439 for (i
= 0; i
< 16; i
++)
1440 params
[i
] = FLOAT_TO_BOOLEAN(m
->m
[i
]);
1444 m
= *(GLmatrix
**) p
;
1445 for (i
= 0; i
< 16; i
++)
1446 params
[i
] = FLOAT_TO_BOOLEAN(m
->m
[transpose
[i
]]);
1457 shift
= d
->type
- TYPE_BIT_0
;
1458 params
[0] = (*(GLbitfield
*) p
>> shift
) & 1;
1464 _mesa_GetFloatv(GLenum pname
, GLfloat
*params
)
1466 const struct value_desc
*d
;
1472 d
= find_value("glGetFloatv", pname
, &p
, &v
);
1477 params
[0] = (GLfloat
) d
->offset
;
1482 params
[3] = ((GLfloat
*) p
)[3];
1485 params
[2] = ((GLfloat
*) p
)[2];
1488 params
[1] = ((GLfloat
*) p
)[1];
1491 params
[0] = ((GLfloat
*) p
)[0];
1494 case TYPE_DOUBLEN_2
:
1495 params
[1] = (GLfloat
) (((GLdouble
*) p
)[1]);
1497 params
[0] = (GLfloat
) (((GLdouble
*) p
)[0]);
1501 params
[3] = (GLfloat
) (((GLint
*) p
)[3]);
1503 params
[2] = (GLfloat
) (((GLint
*) p
)[2]);
1506 params
[1] = (GLfloat
) (((GLint
*) p
)[1]);
1509 params
[0] = (GLfloat
) (((GLint
*) p
)[0]);
1513 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1514 params
[i
] = INT_TO_FLOAT(v
.value_int_n
.ints
[i
]);
1518 params
[0] = (GLfloat
) (((GLint64
*) p
)[0]);
1522 params
[0] = BOOLEAN_TO_FLOAT(*(GLboolean
*) p
);
1526 m
= *(GLmatrix
**) p
;
1527 for (i
= 0; i
< 16; i
++)
1528 params
[i
] = m
->m
[i
];
1532 m
= *(GLmatrix
**) p
;
1533 for (i
= 0; i
< 16; i
++)
1534 params
[i
] = m
->m
[transpose
[i
]];
1545 shift
= d
->type
- TYPE_BIT_0
;
1546 params
[0] = BOOLEAN_TO_FLOAT((*(GLbitfield
*) p
>> shift
) & 1);
1552 _mesa_GetIntegerv(GLenum pname
, GLint
*params
)
1554 const struct value_desc
*d
;
1560 d
= find_value("glGetIntegerv", pname
, &p
, &v
);
1565 params
[0] = d
->offset
;
1569 params
[3] = IROUND(((GLfloat
*) p
)[3]);
1571 params
[2] = IROUND(((GLfloat
*) p
)[2]);
1573 params
[1] = IROUND(((GLfloat
*) p
)[1]);
1575 params
[0] = IROUND(((GLfloat
*) p
)[0]);
1579 params
[3] = FLOAT_TO_INT(((GLfloat
*) p
)[3]);
1581 params
[2] = FLOAT_TO_INT(((GLfloat
*) p
)[2]);
1583 params
[1] = FLOAT_TO_INT(((GLfloat
*) p
)[1]);
1585 params
[0] = FLOAT_TO_INT(((GLfloat
*) p
)[0]);
1588 case TYPE_DOUBLEN_2
:
1589 params
[1] = FLOAT_TO_INT(((GLdouble
*) p
)[1]);
1591 params
[0] = FLOAT_TO_INT(((GLdouble
*) p
)[0]);
1595 params
[3] = ((GLint
*) p
)[3];
1597 params
[2] = ((GLint
*) p
)[2];
1600 params
[1] = ((GLint
*) p
)[1];
1603 params
[0] = ((GLint
*) p
)[0];
1607 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1608 params
[i
] = v
.value_int_n
.ints
[i
];
1612 params
[0] = INT64_TO_INT(((GLint64
*) p
)[0]);
1616 params
[0] = BOOLEAN_TO_INT(*(GLboolean
*) p
);
1620 m
= *(GLmatrix
**) p
;
1621 for (i
= 0; i
< 16; i
++)
1622 params
[i
] = FLOAT_TO_INT(m
->m
[i
]);
1626 m
= *(GLmatrix
**) p
;
1627 for (i
= 0; i
< 16; i
++)
1628 params
[i
] = FLOAT_TO_INT(m
->m
[transpose
[i
]]);
1639 shift
= d
->type
- TYPE_BIT_0
;
1640 params
[0] = (*(GLbitfield
*) p
>> shift
) & 1;
1646 _mesa_GetInteger64v(GLenum pname
, GLint64
*params
)
1648 const struct value_desc
*d
;
1654 d
= find_value("glGetInteger64v", pname
, &p
, &v
);
1659 params
[0] = d
->offset
;
1663 params
[3] = IROUND64(((GLfloat
*) p
)[3]);
1665 params
[2] = IROUND64(((GLfloat
*) p
)[2]);
1667 params
[1] = IROUND64(((GLfloat
*) p
)[1]);
1669 params
[0] = IROUND64(((GLfloat
*) p
)[0]);
1673 params
[3] = FLOAT_TO_INT(((GLfloat
*) p
)[3]);
1675 params
[2] = FLOAT_TO_INT(((GLfloat
*) p
)[2]);
1677 params
[1] = FLOAT_TO_INT(((GLfloat
*) p
)[1]);
1679 params
[0] = FLOAT_TO_INT(((GLfloat
*) p
)[0]);
1682 case TYPE_DOUBLEN_2
:
1683 params
[1] = FLOAT_TO_INT(((GLdouble
*) p
)[1]);
1685 params
[0] = FLOAT_TO_INT(((GLdouble
*) p
)[0]);
1689 params
[3] = ((GLint
*) p
)[3];
1691 params
[2] = ((GLint
*) p
)[2];
1694 params
[1] = ((GLint
*) p
)[1];
1697 params
[0] = ((GLint
*) p
)[0];
1701 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1702 params
[i
] = INT_TO_BOOLEAN(v
.value_int_n
.ints
[i
]);
1706 params
[0] = ((GLint64
*) p
)[0];
1710 params
[0] = ((GLboolean
*) p
)[0];
1714 m
= *(GLmatrix
**) p
;
1715 for (i
= 0; i
< 16; i
++)
1716 params
[i
] = FLOAT_TO_INT64(m
->m
[i
]);
1720 m
= *(GLmatrix
**) p
;
1721 for (i
= 0; i
< 16; i
++)
1722 params
[i
] = FLOAT_TO_INT64(m
->m
[transpose
[i
]]);
1733 shift
= d
->type
- TYPE_BIT_0
;
1734 params
[0] = (*(GLbitfield
*) p
>> shift
) & 1;
1740 _mesa_GetDoublev(GLenum pname
, GLdouble
*params
)
1742 const struct value_desc
*d
;
1748 d
= find_value("glGetDoublev", pname
, &p
, &v
);
1753 params
[0] = d
->offset
;
1758 params
[3] = ((GLfloat
*) p
)[3];
1761 params
[2] = ((GLfloat
*) p
)[2];
1764 params
[1] = ((GLfloat
*) p
)[1];
1767 params
[0] = ((GLfloat
*) p
)[0];
1770 case TYPE_DOUBLEN_2
:
1771 params
[1] = ((GLdouble
*) p
)[1];
1773 params
[0] = ((GLdouble
*) p
)[0];
1777 params
[3] = ((GLint
*) p
)[3];
1779 params
[2] = ((GLint
*) p
)[2];
1782 params
[1] = ((GLint
*) p
)[1];
1785 params
[0] = ((GLint
*) p
)[0];
1789 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1790 params
[i
] = v
.value_int_n
.ints
[i
];
1794 params
[0] = (GLdouble
) (((GLint64
*) p
)[0]);
1798 params
[0] = *(GLboolean
*) p
;
1802 m
= *(GLmatrix
**) p
;
1803 for (i
= 0; i
< 16; i
++)
1804 params
[i
] = m
->m
[i
];
1808 m
= *(GLmatrix
**) p
;
1809 for (i
= 0; i
< 16; i
++)
1810 params
[i
] = m
->m
[transpose
[i
]];
1821 shift
= d
->type
- TYPE_BIT_0
;
1822 params
[0] = (*(GLbitfield
*) p
>> shift
) & 1;
1828 * Convert a GL texture binding enum such as GL_TEXTURE_BINDING_2D
1829 * into the corresponding Mesa texture target index.
1830 * \return TEXTURE_x_INDEX or -1 if binding is invalid
1833 tex_binding_to_index(const struct gl_context
*ctx
, GLenum binding
)
1836 case GL_TEXTURE_BINDING_1D
:
1837 return _mesa_is_desktop_gl(ctx
) ? TEXTURE_1D_INDEX
: -1;
1838 case GL_TEXTURE_BINDING_2D
:
1839 return TEXTURE_2D_INDEX
;
1840 case GL_TEXTURE_BINDING_3D
:
1841 return ctx
->API
!= API_OPENGLES
? TEXTURE_3D_INDEX
: -1;
1842 case GL_TEXTURE_BINDING_CUBE_MAP
:
1843 return ctx
->Extensions
.ARB_texture_cube_map
1844 ? TEXTURE_CUBE_INDEX
: -1;
1845 case GL_TEXTURE_BINDING_RECTANGLE
:
1846 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.NV_texture_rectangle
1847 ? TEXTURE_RECT_INDEX
: -1;
1848 case GL_TEXTURE_BINDING_1D_ARRAY
:
1849 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_array
1850 ? TEXTURE_1D_ARRAY_INDEX
: -1;
1851 case GL_TEXTURE_BINDING_2D_ARRAY
:
1852 return (_mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_array
)
1853 || _mesa_is_gles3(ctx
)
1854 ? TEXTURE_2D_ARRAY_INDEX
: -1;
1855 case GL_TEXTURE_BINDING_BUFFER
:
1856 return (_mesa_has_ARB_texture_buffer_object(ctx
) ||
1857 _mesa_has_OES_texture_buffer(ctx
)) ?
1858 TEXTURE_BUFFER_INDEX
: -1;
1859 case GL_TEXTURE_BINDING_CUBE_MAP_ARRAY
:
1860 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.ARB_texture_cube_map_array
1861 ? TEXTURE_CUBE_ARRAY_INDEX
: -1;
1862 case GL_TEXTURE_BINDING_2D_MULTISAMPLE
:
1863 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.ARB_texture_multisample
1864 ? TEXTURE_2D_MULTISAMPLE_INDEX
: -1;
1865 case GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY
:
1866 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.ARB_texture_multisample
1867 ? TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX
: -1;
1873 static enum value_type
1874 find_value_indexed(const char *func
, GLenum pname
, GLuint index
, union value
*v
)
1876 GET_CURRENT_CONTEXT(ctx
);
1881 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1883 if (!ctx
->Extensions
.EXT_draw_buffers2
)
1885 v
->value_int
= (ctx
->Color
.BlendEnabled
>> index
) & 1;
1890 case GL_BLEND_SRC_RGB
:
1891 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1893 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1895 v
->value_int
= ctx
->Color
.Blend
[index
].SrcRGB
;
1897 case GL_BLEND_SRC_ALPHA
:
1898 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1900 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1902 v
->value_int
= ctx
->Color
.Blend
[index
].SrcA
;
1906 case GL_BLEND_DST_RGB
:
1907 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1909 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1911 v
->value_int
= ctx
->Color
.Blend
[index
].DstRGB
;
1913 case GL_BLEND_DST_ALPHA
:
1914 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1916 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1918 v
->value_int
= ctx
->Color
.Blend
[index
].DstA
;
1920 case GL_BLEND_EQUATION_RGB
:
1921 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1923 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1925 v
->value_int
= ctx
->Color
.Blend
[index
].EquationRGB
;
1927 case GL_BLEND_EQUATION_ALPHA
:
1928 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1930 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1932 v
->value_int
= ctx
->Color
.Blend
[index
].EquationA
;
1935 case GL_COLOR_WRITEMASK
:
1936 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1938 if (!ctx
->Extensions
.EXT_draw_buffers2
)
1940 v
->value_int_4
[0] = ctx
->Color
.ColorMask
[index
][RCOMP
] ? 1 : 0;
1941 v
->value_int_4
[1] = ctx
->Color
.ColorMask
[index
][GCOMP
] ? 1 : 0;
1942 v
->value_int_4
[2] = ctx
->Color
.ColorMask
[index
][BCOMP
] ? 1 : 0;
1943 v
->value_int_4
[3] = ctx
->Color
.ColorMask
[index
][ACOMP
] ? 1 : 0;
1946 case GL_SCISSOR_BOX
:
1947 if (index
>= ctx
->Const
.MaxViewports
)
1949 v
->value_int_4
[0] = ctx
->Scissor
.ScissorArray
[index
].X
;
1950 v
->value_int_4
[1] = ctx
->Scissor
.ScissorArray
[index
].Y
;
1951 v
->value_int_4
[2] = ctx
->Scissor
.ScissorArray
[index
].Width
;
1952 v
->value_int_4
[3] = ctx
->Scissor
.ScissorArray
[index
].Height
;
1955 case GL_WINDOW_RECTANGLE_EXT
:
1956 if (!ctx
->Extensions
.EXT_window_rectangles
)
1958 if (index
>= ctx
->Const
.MaxWindowRectangles
)
1960 v
->value_int_4
[0] = ctx
->Scissor
.WindowRects
[index
].X
;
1961 v
->value_int_4
[1] = ctx
->Scissor
.WindowRects
[index
].Y
;
1962 v
->value_int_4
[2] = ctx
->Scissor
.WindowRects
[index
].Width
;
1963 v
->value_int_4
[3] = ctx
->Scissor
.WindowRects
[index
].Height
;
1967 if (index
>= ctx
->Const
.MaxViewports
)
1969 v
->value_float_4
[0] = ctx
->ViewportArray
[index
].X
;
1970 v
->value_float_4
[1] = ctx
->ViewportArray
[index
].Y
;
1971 v
->value_float_4
[2] = ctx
->ViewportArray
[index
].Width
;
1972 v
->value_float_4
[3] = ctx
->ViewportArray
[index
].Height
;
1973 return TYPE_FLOAT_4
;
1975 case GL_DEPTH_RANGE
:
1976 if (index
>= ctx
->Const
.MaxViewports
)
1978 v
->value_double_2
[0] = ctx
->ViewportArray
[index
].Near
;
1979 v
->value_double_2
[1] = ctx
->ViewportArray
[index
].Far
;
1980 return TYPE_DOUBLEN_2
;
1982 case GL_TRANSFORM_FEEDBACK_BUFFER_START
:
1983 if (index
>= ctx
->Const
.MaxTransformFeedbackBuffers
)
1985 if (!ctx
->Extensions
.EXT_transform_feedback
)
1987 v
->value_int64
= ctx
->TransformFeedback
.CurrentObject
->Offset
[index
];
1990 case GL_TRANSFORM_FEEDBACK_BUFFER_SIZE
:
1991 if (index
>= ctx
->Const
.MaxTransformFeedbackBuffers
)
1993 if (!ctx
->Extensions
.EXT_transform_feedback
)
1996 = ctx
->TransformFeedback
.CurrentObject
->RequestedSize
[index
];
1999 case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING
:
2000 if (index
>= ctx
->Const
.MaxTransformFeedbackBuffers
)
2002 if (!ctx
->Extensions
.EXT_transform_feedback
)
2004 v
->value_int
= ctx
->TransformFeedback
.CurrentObject
->BufferNames
[index
];
2007 case GL_UNIFORM_BUFFER_BINDING
:
2008 if (index
>= ctx
->Const
.MaxUniformBufferBindings
)
2010 if (!ctx
->Extensions
.ARB_uniform_buffer_object
)
2012 v
->value_int
= ctx
->UniformBufferBindings
[index
].BufferObject
->Name
;
2015 case GL_UNIFORM_BUFFER_START
:
2016 if (index
>= ctx
->Const
.MaxUniformBufferBindings
)
2018 if (!ctx
->Extensions
.ARB_uniform_buffer_object
)
2020 v
->value_int
= ctx
->UniformBufferBindings
[index
].Offset
< 0 ? 0 :
2021 ctx
->UniformBufferBindings
[index
].Offset
;
2024 case GL_UNIFORM_BUFFER_SIZE
:
2025 if (index
>= ctx
->Const
.MaxUniformBufferBindings
)
2027 if (!ctx
->Extensions
.ARB_uniform_buffer_object
)
2029 v
->value_int
= ctx
->UniformBufferBindings
[index
].Size
< 0 ? 0 :
2030 ctx
->UniformBufferBindings
[index
].Size
;
2033 /* ARB_shader_storage_buffer_object */
2034 case GL_SHADER_STORAGE_BUFFER_BINDING
:
2035 if (!ctx
->Extensions
.ARB_shader_storage_buffer_object
)
2037 if (index
>= ctx
->Const
.MaxShaderStorageBufferBindings
)
2039 v
->value_int
= ctx
->ShaderStorageBufferBindings
[index
].BufferObject
->Name
;
2042 case GL_SHADER_STORAGE_BUFFER_START
:
2043 if (!ctx
->Extensions
.ARB_shader_storage_buffer_object
)
2045 if (index
>= ctx
->Const
.MaxShaderStorageBufferBindings
)
2047 v
->value_int
= ctx
->ShaderStorageBufferBindings
[index
].Offset
< 0 ? 0 :
2048 ctx
->ShaderStorageBufferBindings
[index
].Offset
;
2051 case GL_SHADER_STORAGE_BUFFER_SIZE
:
2052 if (!ctx
->Extensions
.ARB_shader_storage_buffer_object
)
2054 if (index
>= ctx
->Const
.MaxShaderStorageBufferBindings
)
2056 v
->value_int
= ctx
->ShaderStorageBufferBindings
[index
].Size
< 0 ? 0 :
2057 ctx
->ShaderStorageBufferBindings
[index
].Size
;
2060 /* ARB_texture_multisample / GL3.2 */
2061 case GL_SAMPLE_MASK_VALUE
:
2064 if (!ctx
->Extensions
.ARB_texture_multisample
)
2066 v
->value_int
= ctx
->Multisample
.SampleMaskValue
;
2069 case GL_ATOMIC_COUNTER_BUFFER_BINDING
:
2070 if (!ctx
->Extensions
.ARB_shader_atomic_counters
)
2072 if (index
>= ctx
->Const
.MaxAtomicBufferBindings
)
2074 v
->value_int
= ctx
->AtomicBufferBindings
[index
].BufferObject
->Name
;
2077 case GL_ATOMIC_COUNTER_BUFFER_START
:
2078 if (!ctx
->Extensions
.ARB_shader_atomic_counters
)
2080 if (index
>= ctx
->Const
.MaxAtomicBufferBindings
)
2082 v
->value_int64
= ctx
->AtomicBufferBindings
[index
].Offset
;
2085 case GL_ATOMIC_COUNTER_BUFFER_SIZE
:
2086 if (!ctx
->Extensions
.ARB_shader_atomic_counters
)
2088 if (index
>= ctx
->Const
.MaxAtomicBufferBindings
)
2090 v
->value_int64
= ctx
->AtomicBufferBindings
[index
].Size
;
2093 case GL_VERTEX_BINDING_DIVISOR
:
2094 if ((!_mesa_is_desktop_gl(ctx
) || !ctx
->Extensions
.ARB_instanced_arrays
) &&
2095 !_mesa_is_gles31(ctx
))
2097 if (index
>= ctx
->Const
.Program
[MESA_SHADER_VERTEX
].MaxAttribs
)
2099 v
->value_int
= ctx
->Array
.VAO
->VertexBinding
[VERT_ATTRIB_GENERIC(index
)].InstanceDivisor
;
2102 case GL_VERTEX_BINDING_OFFSET
:
2103 if (!_mesa_is_desktop_gl(ctx
) && !_mesa_is_gles31(ctx
))
2105 if (index
>= ctx
->Const
.Program
[MESA_SHADER_VERTEX
].MaxAttribs
)
2107 v
->value_int
= ctx
->Array
.VAO
->VertexBinding
[VERT_ATTRIB_GENERIC(index
)].Offset
;
2110 case GL_VERTEX_BINDING_STRIDE
:
2111 if (!_mesa_is_desktop_gl(ctx
) && !_mesa_is_gles31(ctx
))
2113 if (index
>= ctx
->Const
.Program
[MESA_SHADER_VERTEX
].MaxAttribs
)
2115 v
->value_int
= ctx
->Array
.VAO
->VertexBinding
[VERT_ATTRIB_GENERIC(index
)].Stride
;
2118 case GL_VERTEX_BINDING_BUFFER
:
2119 if (ctx
->API
== API_OPENGLES2
&& ctx
->Version
< 31)
2121 if (index
>= ctx
->Const
.Program
[MESA_SHADER_VERTEX
].MaxAttribs
)
2123 v
->value_int
= ctx
->Array
.VAO
->VertexBinding
[VERT_ATTRIB_GENERIC(index
)].BufferObj
->Name
;
2126 /* ARB_shader_image_load_store */
2127 case GL_IMAGE_BINDING_NAME
: {
2128 struct gl_texture_object
*t
;
2130 if (!ctx
->Extensions
.ARB_shader_image_load_store
)
2132 if (index
>= ctx
->Const
.MaxImageUnits
)
2135 t
= ctx
->ImageUnits
[index
].TexObj
;
2136 v
->value_int
= (t
? t
->Name
: 0);
2140 case GL_IMAGE_BINDING_LEVEL
:
2141 if (!ctx
->Extensions
.ARB_shader_image_load_store
)
2143 if (index
>= ctx
->Const
.MaxImageUnits
)
2146 v
->value_int
= ctx
->ImageUnits
[index
].Level
;
2149 case GL_IMAGE_BINDING_LAYERED
:
2150 if (!ctx
->Extensions
.ARB_shader_image_load_store
)
2152 if (index
>= ctx
->Const
.MaxImageUnits
)
2155 v
->value_int
= ctx
->ImageUnits
[index
].Layered
;
2158 case GL_IMAGE_BINDING_LAYER
:
2159 if (!ctx
->Extensions
.ARB_shader_image_load_store
)
2161 if (index
>= ctx
->Const
.MaxImageUnits
)
2164 v
->value_int
= ctx
->ImageUnits
[index
].Layer
;
2167 case GL_IMAGE_BINDING_ACCESS
:
2168 if (!ctx
->Extensions
.ARB_shader_image_load_store
)
2170 if (index
>= ctx
->Const
.MaxImageUnits
)
2173 v
->value_int
= ctx
->ImageUnits
[index
].Access
;
2176 case GL_IMAGE_BINDING_FORMAT
:
2177 if (!ctx
->Extensions
.ARB_shader_image_load_store
)
2179 if (index
>= ctx
->Const
.MaxImageUnits
)
2182 v
->value_int
= ctx
->ImageUnits
[index
].Format
;
2185 /* ARB_direct_state_access */
2186 case GL_TEXTURE_BINDING_1D
:
2187 case GL_TEXTURE_BINDING_1D_ARRAY
:
2188 case GL_TEXTURE_BINDING_2D
:
2189 case GL_TEXTURE_BINDING_2D_ARRAY
:
2190 case GL_TEXTURE_BINDING_2D_MULTISAMPLE
:
2191 case GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY
:
2192 case GL_TEXTURE_BINDING_3D
:
2193 case GL_TEXTURE_BINDING_BUFFER
:
2194 case GL_TEXTURE_BINDING_CUBE_MAP
:
2195 case GL_TEXTURE_BINDING_CUBE_MAP_ARRAY
:
2196 case GL_TEXTURE_BINDING_RECTANGLE
: {
2199 if (ctx
->API
!= API_OPENGL_CORE
)
2201 target
= tex_binding_to_index(ctx
, pname
);
2204 if (index
>= _mesa_max_tex_unit(ctx
))
2207 v
->value_int
= ctx
->Texture
.Unit
[index
].CurrentTex
[target
]->Name
;
2211 case GL_SAMPLER_BINDING
: {
2212 struct gl_sampler_object
*samp
;
2214 if (ctx
->API
!= API_OPENGL_CORE
)
2216 if (index
>= _mesa_max_tex_unit(ctx
))
2219 samp
= ctx
->Texture
.Unit
[index
].Sampler
;
2220 v
->value_int
= samp
? samp
->Name
: 0;
2224 case GL_MAX_COMPUTE_WORK_GROUP_COUNT
:
2225 if (!_mesa_has_compute_shaders(ctx
))
2229 v
->value_int
= ctx
->Const
.MaxComputeWorkGroupCount
[index
];
2232 case GL_MAX_COMPUTE_WORK_GROUP_SIZE
:
2233 if (!_mesa_has_compute_shaders(ctx
))
2237 v
->value_int
= ctx
->Const
.MaxComputeWorkGroupSize
[index
];
2242 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=%s)", func
,
2243 _mesa_enum_to_string(pname
));
2244 return TYPE_INVALID
;
2246 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(pname=%s)", func
,
2247 _mesa_enum_to_string(pname
));
2248 return TYPE_INVALID
;
2252 _mesa_GetBooleani_v( GLenum pname
, GLuint index
, GLboolean
*params
)
2255 enum value_type type
=
2256 find_value_indexed("glGetBooleani_v", pname
, index
, &v
);
2260 params
[0] = INT_TO_BOOLEAN(v
.value_int
);
2263 params
[0] = INT_TO_BOOLEAN(v
.value_int_4
[0]);
2264 params
[1] = INT_TO_BOOLEAN(v
.value_int_4
[1]);
2265 params
[2] = INT_TO_BOOLEAN(v
.value_int_4
[2]);
2266 params
[3] = INT_TO_BOOLEAN(v
.value_int_4
[3]);
2269 params
[0] = INT64_TO_BOOLEAN(v
.value_int64
);
2272 ; /* nothing - GL error was recorded */
2277 _mesa_GetIntegeri_v( GLenum pname
, GLuint index
, GLint
*params
)
2280 enum value_type type
=
2281 find_value_indexed("glGetIntegeri_v", pname
, index
, &v
);
2286 params
[3] = IROUND(v
.value_float_4
[3]);
2289 params
[2] = IROUND(v
.value_float_4
[2]);
2292 params
[1] = IROUND(v
.value_float_4
[1]);
2295 params
[0] = IROUND(v
.value_float_4
[0]);
2298 case TYPE_DOUBLEN_2
:
2299 params
[1] = IROUND(v
.value_double_2
[1]);
2301 params
[0] = IROUND(v
.value_double_2
[0]);
2305 params
[0] = v
.value_int
;
2308 params
[0] = v
.value_int_4
[0];
2309 params
[1] = v
.value_int_4
[1];
2310 params
[2] = v
.value_int_4
[2];
2311 params
[3] = v
.value_int_4
[3];
2314 params
[0] = INT64_TO_INT(v
.value_int64
);
2317 ; /* nothing - GL error was recorded */
2322 _mesa_GetInteger64i_v( GLenum pname
, GLuint index
, GLint64
*params
)
2325 enum value_type type
=
2326 find_value_indexed("glGetInteger64i_v", pname
, index
, &v
);
2330 params
[0] = v
.value_int
;
2333 params
[0] = v
.value_int_4
[0];
2334 params
[1] = v
.value_int_4
[1];
2335 params
[2] = v
.value_int_4
[2];
2336 params
[3] = v
.value_int_4
[3];
2339 params
[0] = v
.value_int64
;
2342 ; /* nothing - GL error was recorded */
2347 _mesa_GetFloati_v(GLenum pname
, GLuint index
, GLfloat
*params
)
2352 enum value_type type
=
2353 find_value_indexed("glGetFloati_v", pname
, index
, &v
);
2358 params
[3] = v
.value_float_4
[3];
2361 params
[2] = v
.value_float_4
[2];
2364 params
[1] = v
.value_float_4
[1];
2367 params
[0] = v
.value_float_4
[0];
2370 case TYPE_DOUBLEN_2
:
2371 params
[1] = (GLfloat
) v
.value_double_2
[1];
2373 params
[0] = (GLfloat
) v
.value_double_2
[0];
2377 params
[3] = (GLfloat
) v
.value_int_4
[3];
2379 params
[2] = (GLfloat
) v
.value_int_4
[2];
2382 params
[1] = (GLfloat
) v
.value_int_4
[1];
2385 params
[0] = (GLfloat
) v
.value_int_4
[0];
2389 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
2390 params
[i
] = INT_TO_FLOAT(v
.value_int_n
.ints
[i
]);
2394 params
[0] = (GLfloat
) v
.value_int64
;
2398 params
[0] = BOOLEAN_TO_FLOAT(v
.value_bool
);
2402 m
= *(GLmatrix
**) &v
;
2403 for (i
= 0; i
< 16; i
++)
2404 params
[i
] = m
->m
[i
];
2408 m
= *(GLmatrix
**) &v
;
2409 for (i
= 0; i
< 16; i
++)
2410 params
[i
] = m
->m
[transpose
[i
]];
2419 _mesa_GetDoublei_v(GLenum pname
, GLuint index
, GLdouble
*params
)
2424 enum value_type type
=
2425 find_value_indexed("glGetDoublei_v", pname
, index
, &v
);
2430 params
[3] = (GLdouble
) v
.value_float_4
[3];
2433 params
[2] = (GLdouble
) v
.value_float_4
[2];
2436 params
[1] = (GLdouble
) v
.value_float_4
[1];
2439 params
[0] = (GLdouble
) v
.value_float_4
[0];
2442 case TYPE_DOUBLEN_2
:
2443 params
[1] = v
.value_double_2
[1];
2445 params
[0] = v
.value_double_2
[0];
2449 params
[3] = (GLdouble
) v
.value_int_4
[3];
2451 params
[2] = (GLdouble
) v
.value_int_4
[2];
2454 params
[1] = (GLdouble
) v
.value_int_4
[1];
2457 params
[0] = (GLdouble
) v
.value_int_4
[0];
2461 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
2462 params
[i
] = (GLdouble
) INT_TO_FLOAT(v
.value_int_n
.ints
[i
]);
2466 params
[0] = (GLdouble
) v
.value_int64
;
2470 params
[0] = (GLdouble
) BOOLEAN_TO_FLOAT(v
.value_bool
);
2474 m
= *(GLmatrix
**) &v
;
2475 for (i
= 0; i
< 16; i
++)
2476 params
[i
] = (GLdouble
) m
->m
[i
];
2480 m
= *(GLmatrix
**) &v
;
2481 for (i
= 0; i
< 16; i
++)
2482 params
[i
] = (GLdouble
) m
->m
[transpose
[i
]];
2491 _mesa_GetFixedv(GLenum pname
, GLfixed
*params
)
2493 const struct value_desc
*d
;
2499 d
= find_value("glGetDoublev", pname
, &p
, &v
);
2504 params
[0] = INT_TO_FIXED(d
->offset
);
2509 params
[3] = FLOAT_TO_FIXED(((GLfloat
*) p
)[3]);
2512 params
[2] = FLOAT_TO_FIXED(((GLfloat
*) p
)[2]);
2515 params
[1] = FLOAT_TO_FIXED(((GLfloat
*) p
)[1]);
2518 params
[0] = FLOAT_TO_FIXED(((GLfloat
*) p
)[0]);
2521 case TYPE_DOUBLEN_2
:
2522 params
[1] = FLOAT_TO_FIXED(((GLdouble
*) p
)[1]);
2524 params
[0] = FLOAT_TO_FIXED(((GLdouble
*) p
)[0]);
2528 params
[3] = INT_TO_FIXED(((GLint
*) p
)[3]);
2530 params
[2] = INT_TO_FIXED(((GLint
*) p
)[2]);
2533 params
[1] = INT_TO_FIXED(((GLint
*) p
)[1]);
2536 params
[0] = INT_TO_FIXED(((GLint
*) p
)[0]);
2540 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
2541 params
[i
] = INT_TO_FIXED(v
.value_int_n
.ints
[i
]);
2545 params
[0] = ((GLint64
*) p
)[0];
2549 params
[0] = BOOLEAN_TO_FIXED(((GLboolean
*) p
)[0]);
2553 m
= *(GLmatrix
**) p
;
2554 for (i
= 0; i
< 16; i
++)
2555 params
[i
] = FLOAT_TO_FIXED(m
->m
[i
]);
2559 m
= *(GLmatrix
**) p
;
2560 for (i
= 0; i
< 16; i
++)
2561 params
[i
] = FLOAT_TO_FIXED(m
->m
[transpose
[i
]]);
2572 shift
= d
->type
- TYPE_BIT_0
;
2573 params
[0] = BOOLEAN_TO_FIXED((*(GLbitfield
*) p
>> shift
) & 1);