2 * Copyright (C) 2010 Brian Paul All Rights Reserved.
3 * Copyright (C) 2010 Intel Corporation
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
12 * The above copyright notice and this permission notice shall be included
13 * in all copies or substantial portions of the Software.
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
16 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
19 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
20 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
21 * OTHER DEALINGS IN THE SOFTWARE.
23 * Author: Kristian Høgsberg <krh@bitplanet.net>
29 #include "debug_output.h"
33 #include "extensions.h"
38 #include "texcompress.h"
40 #include "framebuffer.h"
41 #include "samplerobj.h"
44 /* This is a table driven implemetation of the glGet*v() functions.
45 * The basic idea is that most getters just look up an int somewhere
46 * in struct gl_context and then convert it to a bool or float according to
47 * which of glGetIntegerv() glGetBooleanv() etc is being called.
48 * Instead of generating code to do this, we can just record the enum
49 * value and the offset into struct gl_context in an array of structs. Then
50 * in glGet*(), we lookup the struct for the enum in question, and use
51 * the offset to get the int we need.
53 * Sometimes we need to look up a float, a boolean, a bit in a
54 * bitfield, a matrix or other types instead, so we need to track the
55 * type of the value in struct gl_context. And sometimes the value isn't in
56 * struct gl_context but in the drawbuffer, the array object, current texture
57 * unit, or maybe it's a computed value. So we need to also track
58 * where or how to find the value. Finally, we sometimes need to
59 * check that one of a number of extensions are enabled, the GL
60 * version or flush or call _mesa_update_state(). This is done by
61 * attaching optional extra information to the value description
62 * struct, it's sort of like an array of opcodes that describe extra
65 * Putting all this together we end up with struct value_desc below,
66 * and with a couple of macros to help, the table of struct value_desc
67 * is about as concise as the specification in the old python script.
70 #define FLOAT_TO_BOOLEAN(X) ( (X) ? GL_TRUE : GL_FALSE )
71 #define FLOAT_TO_FIXED(F) ( ((F) * 65536.0f > INT_MAX) ? INT_MAX : \
72 ((F) * 65536.0f < INT_MIN) ? INT_MIN : \
73 (GLint) ((F) * 65536.0f) )
75 #define INT_TO_BOOLEAN(I) ( (I) ? GL_TRUE : GL_FALSE )
76 #define INT_TO_FIXED(I) ( ((I) > SHRT_MAX) ? INT_MAX : \
77 ((I) < SHRT_MIN) ? INT_MIN : \
78 (GLint) ((I) * 65536) )
80 #define INT64_TO_BOOLEAN(I) ( (I) ? GL_TRUE : GL_FALSE )
81 #define INT64_TO_INT(I) ( (GLint)((I > INT_MAX) ? INT_MAX : ((I < INT_MIN) ? INT_MIN : (I))) )
83 #define BOOLEAN_TO_INT(B) ( (GLint) (B) )
84 #define BOOLEAN_TO_INT64(B) ( (GLint64) (B) )
85 #define BOOLEAN_TO_FLOAT(B) ( (B) ? 1.0F : 0.0F )
86 #define BOOLEAN_TO_FIXED(B) ( (GLint) ((B) ? 1 : 0) << 16 )
88 #define ENUM_TO_INT64(E) ( (GLint64) (E) )
89 #define ENUM_TO_FIXED(E) (E)
130 enum value_location
{
151 EXTRA_NEW_FRAG_CLAMP
,
152 EXTRA_VALID_DRAW_BUFFER
,
153 EXTRA_VALID_TEXTURE_UNIT
,
154 EXTRA_VALID_CLIP_DISTANCE
,
158 EXTRA_EXT_ATOMICS_GS
,
159 EXTRA_EXT_SHADER_IMAGE_GS
,
160 EXTRA_EXT_ATOMICS_TESS
,
161 EXTRA_EXT_SHADER_IMAGE_TESS
,
163 EXTRA_EXT_FB_NO_ATTACH_GS
,
165 EXTRA_EXT_PROVOKING_VERTEX_32
,
168 #define NO_EXTRA NULL
173 GLubyte location
; /**< enum value_location */
174 GLubyte type
; /**< enum value_type */
181 GLfloat value_float_4
[4];
182 GLdouble value_double_2
[2];
183 GLmatrix
*value_matrix
;
185 GLint value_int_4
[4];
189 /* Sigh, see GL_COMPRESSED_TEXTURE_FORMATS_ARB handling */
193 GLboolean value_bool
;
196 #define BUFFER_FIELD(field, type) \
197 LOC_BUFFER, type, offsetof(struct gl_framebuffer, field)
198 #define CONTEXT_FIELD(field, type) \
199 LOC_CONTEXT, type, offsetof(struct gl_context, field)
200 #define ARRAY_FIELD(field, type) \
201 LOC_ARRAY, type, offsetof(struct gl_vertex_array_object, field)
202 #undef CONST /* already defined through windows.h */
203 #define CONST(value) \
204 LOC_CONTEXT, TYPE_CONST, value
206 #define BUFFER_INT(field) BUFFER_FIELD(field, TYPE_INT)
207 #define BUFFER_ENUM(field) BUFFER_FIELD(field, TYPE_ENUM)
208 #define BUFFER_BOOL(field) BUFFER_FIELD(field, TYPE_BOOLEAN)
210 #define CONTEXT_INT(field) CONTEXT_FIELD(field, TYPE_INT)
211 #define CONTEXT_INT2(field) CONTEXT_FIELD(field, TYPE_INT_2)
212 #define CONTEXT_INT64(field) CONTEXT_FIELD(field, TYPE_INT64)
213 #define CONTEXT_UINT(field) CONTEXT_FIELD(field, TYPE_UINT)
214 #define CONTEXT_ENUM(field) CONTEXT_FIELD(field, TYPE_ENUM)
215 #define CONTEXT_ENUM2(field) CONTEXT_FIELD(field, TYPE_ENUM_2)
216 #define CONTEXT_BOOL(field) CONTEXT_FIELD(field, TYPE_BOOLEAN)
217 #define CONTEXT_BIT0(field) CONTEXT_FIELD(field, TYPE_BIT_0)
218 #define CONTEXT_BIT1(field) CONTEXT_FIELD(field, TYPE_BIT_1)
219 #define CONTEXT_BIT2(field) CONTEXT_FIELD(field, TYPE_BIT_2)
220 #define CONTEXT_BIT3(field) CONTEXT_FIELD(field, TYPE_BIT_3)
221 #define CONTEXT_BIT4(field) CONTEXT_FIELD(field, TYPE_BIT_4)
222 #define CONTEXT_BIT5(field) CONTEXT_FIELD(field, TYPE_BIT_5)
223 #define CONTEXT_BIT6(field) CONTEXT_FIELD(field, TYPE_BIT_6)
224 #define CONTEXT_BIT7(field) CONTEXT_FIELD(field, TYPE_BIT_7)
225 #define CONTEXT_FLOAT(field) CONTEXT_FIELD(field, TYPE_FLOAT)
226 #define CONTEXT_FLOAT2(field) CONTEXT_FIELD(field, TYPE_FLOAT_2)
227 #define CONTEXT_FLOAT3(field) CONTEXT_FIELD(field, TYPE_FLOAT_3)
228 #define CONTEXT_FLOAT4(field) CONTEXT_FIELD(field, TYPE_FLOAT_4)
229 #define CONTEXT_FLOAT8(field) CONTEXT_FIELD(field, TYPE_FLOAT_8)
230 #define CONTEXT_MATRIX(field) CONTEXT_FIELD(field, TYPE_MATRIX)
231 #define CONTEXT_MATRIX_T(field) CONTEXT_FIELD(field, TYPE_MATRIX_T)
233 #define ARRAY_INT(field) ARRAY_FIELD(field, TYPE_INT)
234 #define ARRAY_ENUM(field) ARRAY_FIELD(field, TYPE_ENUM)
235 #define ARRAY_BOOL(field) ARRAY_FIELD(field, TYPE_BOOLEAN)
238 offsetof(struct gl_extensions, f)
240 #define EXTRA_EXT(e) \
241 static const int extra_##e[] = { \
245 #define EXTRA_EXT2(e1, e2) \
246 static const int extra_##e1##_##e2[] = { \
247 EXT(e1), EXT(e2), EXTRA_END \
250 /* The 'extra' mechanism is a way to specify extra checks (such as
251 * extensions or specific gl versions) or actions (flush current, new
252 * buffers) that we need to do before looking up an enum. We need to
253 * declare them all up front so we can refer to them in the value_desc
256 * Each EXTRA_ will be executed. For EXTRA_* enums of extensions and API
257 * versions, listing multiple ones in an array means an error will be thrown
258 * only if none of them are available. If you need to check for "AND"
259 * behavior, you would need to make a custom EXTRA_ enum.
262 static const int extra_new_buffers
[] = {
267 static const int extra_new_frag_clamp
[] = {
268 EXTRA_NEW_FRAG_CLAMP
,
272 static const int extra_valid_draw_buffer
[] = {
273 EXTRA_VALID_DRAW_BUFFER
,
277 static const int extra_valid_texture_unit
[] = {
278 EXTRA_VALID_TEXTURE_UNIT
,
282 static const int extra_valid_clip_distance
[] = {
283 EXTRA_VALID_CLIP_DISTANCE
,
287 static const int extra_flush_current_valid_texture_unit
[] = {
289 EXTRA_VALID_TEXTURE_UNIT
,
293 static const int extra_flush_current
[] = {
298 static const int extra_EXT_texture_integer_and_new_buffers
[] = {
299 EXT(EXT_texture_integer
),
304 static const int extra_GLSL_130_es3
[] = {
310 static const int extra_texture_buffer_object
[] = {
313 EXT(ARB_texture_buffer_object
),
317 static const int extra_ARB_transform_feedback2_api_es3
[] = {
318 EXT(ARB_transform_feedback2
),
323 static const int extra_ARB_uniform_buffer_object_and_geometry_shader
[] = {
328 static const int extra_ARB_ES2_compatibility_api_es2
[] = {
329 EXT(ARB_ES2_compatibility
),
334 static const int extra_ARB_ES3_compatibility_api_es3
[] = {
335 EXT(ARB_ES3_compatibility
),
340 static const int extra_EXT_framebuffer_sRGB_and_new_buffers
[] = {
341 EXT(EXT_framebuffer_sRGB
),
346 static const int extra_EXT_packed_float
[] = {
347 EXT(EXT_packed_float
),
352 static const int extra_EXT_texture_array_es3
[] = {
353 EXT(EXT_texture_array
),
358 static const int extra_ARB_shader_atomic_counters_and_geometry_shader
[] = {
359 EXTRA_EXT_ATOMICS_GS
,
363 static const int extra_ARB_shader_image_load_store_and_geometry_shader
[] = {
364 EXTRA_EXT_SHADER_IMAGE_GS
,
368 static const int extra_ARB_shader_atomic_counters_and_tessellation
[] = {
369 EXTRA_EXT_ATOMICS_TESS
,
373 static const int extra_ARB_shader_image_load_store_and_tessellation
[] = {
374 EXTRA_EXT_SHADER_IMAGE_TESS
,
378 /* HACK: remove when ARB_compute_shader is actually supported */
379 static const int extra_ARB_compute_shader_es31
[] = {
380 EXT(ARB_compute_shader
),
385 static const int extra_ARB_shader_storage_buffer_object_es31
[] = {
386 EXT(ARB_shader_storage_buffer_object
),
391 static const int extra_ARB_shader_storage_buffer_object_and_geometry_shader
[] = {
396 static const int extra_ARB_shader_image_load_store_shader_storage_buffer_object_es31
[] = {
397 EXT(ARB_shader_image_load_store
),
398 EXT(ARB_shader_storage_buffer_object
),
403 static const int extra_ARB_framebuffer_no_attachments_and_geometry_shader
[] = {
404 EXTRA_EXT_FB_NO_ATTACH_GS
,
408 static const int extra_ARB_viewport_array_or_oes_geometry_shader
[] = {
409 EXT(ARB_viewport_array
),
414 static const int extra_ARB_viewport_array_or_oes_viewport_array
[] = {
415 EXT(ARB_viewport_array
),
416 EXT(OES_viewport_array
),
420 static const int extra_ARB_gpu_shader5_or_oes_geometry_shader
[] = {
421 EXT(ARB_gpu_shader5
),
426 static const int extra_ARB_gpu_shader5_or_OES_sample_variables
[] = {
427 EXT(ARB_gpu_shader5
),
428 EXT(OES_sample_variables
),
432 static const int extra_ES32
[] = {
433 EXT(ARB_ES3_2_compatibility
),
438 static const int extra_KHR_robustness_or_GL
[] = {
445 static const int extra_INTEL_conservative_rasterization
[] = {
446 EXT(INTEL_conservative_rasterization
),
450 EXTRA_EXT(ARB_texture_cube_map
);
451 EXTRA_EXT(EXT_texture_array
);
452 EXTRA_EXT(NV_fog_distance
);
453 EXTRA_EXT(EXT_texture_filter_anisotropic
);
454 EXTRA_EXT(NV_point_sprite
);
455 EXTRA_EXT(NV_texture_rectangle
);
456 EXTRA_EXT(EXT_stencil_two_side
);
457 EXTRA_EXT(EXT_depth_bounds_test
);
458 EXTRA_EXT(ARB_depth_clamp
);
459 EXTRA_EXT(ATI_fragment_shader
);
460 EXTRA_EXT(EXT_provoking_vertex
);
461 EXTRA_EXT(ARB_fragment_shader
);
462 EXTRA_EXT(ARB_fragment_program
);
463 EXTRA_EXT2(ARB_framebuffer_object
, EXT_framebuffer_multisample
);
464 EXTRA_EXT(ARB_seamless_cube_map
);
466 EXTRA_EXT(ARB_vertex_shader
);
467 EXTRA_EXT(EXT_transform_feedback
);
468 EXTRA_EXT(ARB_transform_feedback3
);
469 EXTRA_EXT(EXT_pixel_buffer_object
);
470 EXTRA_EXT(ARB_vertex_program
);
471 EXTRA_EXT2(NV_point_sprite
, ARB_point_sprite
);
472 EXTRA_EXT2(ARB_vertex_program
, ARB_fragment_program
);
473 EXTRA_EXT(ARB_color_buffer_float
);
474 EXTRA_EXT(EXT_framebuffer_sRGB
);
475 EXTRA_EXT(OES_EGL_image_external
);
476 EXTRA_EXT(ARB_blend_func_extended
);
477 EXTRA_EXT(ARB_uniform_buffer_object
);
478 EXTRA_EXT(ARB_timer_query
);
479 EXTRA_EXT2(ARB_texture_cube_map_array
, OES_texture_cube_map_array
);
480 EXTRA_EXT(ARB_texture_buffer_range
);
481 EXTRA_EXT(ARB_texture_multisample
);
482 EXTRA_EXT(ARB_texture_gather
);
483 EXTRA_EXT(ARB_shader_atomic_counters
);
484 EXTRA_EXT(ARB_draw_indirect
);
485 EXTRA_EXT(ARB_shader_image_load_store
);
486 EXTRA_EXT(ARB_query_buffer_object
);
487 EXTRA_EXT2(ARB_transform_feedback3
, ARB_gpu_shader5
);
488 EXTRA_EXT(INTEL_performance_query
);
489 EXTRA_EXT(ARB_explicit_uniform_location
);
490 EXTRA_EXT(ARB_clip_control
);
491 EXTRA_EXT(EXT_polygon_offset_clamp
);
492 EXTRA_EXT(ARB_framebuffer_no_attachments
);
493 EXTRA_EXT(ARB_tessellation_shader
);
494 EXTRA_EXT(ARB_shader_storage_buffer_object
);
495 EXTRA_EXT(ARB_indirect_parameters
);
496 EXTRA_EXT(ATI_meminfo
);
497 EXTRA_EXT(NVX_gpu_memory_info
);
498 EXTRA_EXT(ARB_cull_distance
);
499 EXTRA_EXT(EXT_window_rectangles
);
500 EXTRA_EXT(KHR_blend_equation_advanced_coherent
);
501 EXTRA_EXT(OES_primitive_bounding_box
);
502 EXTRA_EXT(ARB_compute_variable_group_size
);
503 EXTRA_EXT(KHR_robustness
);
504 EXTRA_EXT(ARB_sparse_buffer
);
507 extra_ARB_color_buffer_float_or_glcore
[] = {
508 EXT(ARB_color_buffer_float
),
514 extra_NV_primitive_restart
[] = {
515 EXT(NV_primitive_restart
),
519 static const int extra_version_30
[] = { EXTRA_VERSION_30
, EXTRA_END
};
520 static const int extra_version_31
[] = { EXTRA_VERSION_31
, EXTRA_END
};
521 static const int extra_version_32
[] = { EXTRA_VERSION_32
, EXTRA_END
};
523 static const int extra_gl30_es3
[] = {
529 static const int extra_gl32_es3
[] = {
535 static const int extra_version_32_OES_geometry_shader
[] = {
541 static const int extra_gl40_ARB_sample_shading
[] = {
543 EXT(ARB_sample_shading
),
548 extra_ARB_vertex_program_api_es2
[] = {
549 EXT(ARB_vertex_program
),
554 /* The ReadBuffer get token is valid under either full GL or under
555 * GLES2 if the NV_read_buffer extension is available. */
557 extra_NV_read_buffer_api_gl
[] = {
563 static const int extra_core_ARB_color_buffer_float_and_new_buffers
[] = {
565 EXT(ARB_color_buffer_float
),
570 static const int extra_EXT_shader_framebuffer_fetch
[] = {
573 EXT(MESA_shader_framebuffer_fetch
),
577 static const int extra_EXT_provoking_vertex_32
[] = {
578 EXTRA_EXT_PROVOKING_VERTEX_32
,
583 /* This is the big table describing all the enums we accept in
584 * glGet*v(). The table is partitioned into six parts: enums
585 * understood by all GL APIs (OpenGL, GLES and GLES2), enums shared
586 * between OpenGL and GLES, enums exclusive to GLES, etc for the
587 * remaining combinations. To look up the enums valid in a given API
588 * we will use a hash table specific to that API. These tables are in
589 * turn generated at build time and included through get_hash.h.
592 #include "get_hash.h"
594 /* All we need now is a way to look up the value struct from the enum.
595 * The code generated by gcc for the old generated big switch
596 * statement is a big, balanced, open coded if/else tree, essentially
597 * an unrolled binary search. It would be natural to sort the new
598 * enum table and use bsearch(), but we will use a read-only hash
599 * table instead. bsearch() has a nice guaranteed worst case
600 * performance, but we're also guaranteed to hit that worst case
601 * (log2(n) iterations) for about half the enums. Instead, using an
602 * open addressing hash table, we can find the enum on the first try
603 * for 80% of the enums, 1 collision for 10% and never more than 5
604 * collisions for any enum (typical numbers). And the code is very
605 * simple, even though it feels a little magic. */
608 * Handle irregular enums
610 * Some values don't conform to the "well-known type at context
611 * pointer + offset" pattern, so we have this function to catch all
612 * the corner cases. Typically, it's a computed value or a one-off
613 * pointer to a custom struct or something.
615 * In this case we can't return a pointer to the value, so we'll have
616 * to use the temporary variable 'v' declared back in the calling
617 * glGet*v() function to store the result.
619 * \param ctx the current context
620 * \param d the struct value_desc that describes the enum
621 * \param v pointer to the tmp declared in the calling glGet*v() function
624 find_custom_value(struct gl_context
*ctx
, const struct value_desc
*d
, union value
*v
)
626 struct gl_buffer_object
**buffer_obj
;
627 struct gl_array_attributes
*array
;
631 case GL_MAJOR_VERSION
:
632 v
->value_int
= ctx
->Version
/ 10;
634 case GL_MINOR_VERSION
:
635 v
->value_int
= ctx
->Version
% 10;
641 case GL_TEXTURE_CUBE_MAP
:
642 case GL_TEXTURE_RECTANGLE_NV
:
643 case GL_TEXTURE_EXTERNAL_OES
:
644 v
->value_bool
= _mesa_IsEnabled(d
->pname
);
647 case GL_LINE_STIPPLE_PATTERN
:
648 /* This is the only GLushort, special case it here by promoting
649 * to an int rather than introducing a new type. */
650 v
->value_int
= ctx
->Line
.StipplePattern
;
653 case GL_CURRENT_RASTER_TEXTURE_COORDS
:
654 unit
= ctx
->Texture
.CurrentUnit
;
655 v
->value_float_4
[0] = ctx
->Current
.RasterTexCoords
[unit
][0];
656 v
->value_float_4
[1] = ctx
->Current
.RasterTexCoords
[unit
][1];
657 v
->value_float_4
[2] = ctx
->Current
.RasterTexCoords
[unit
][2];
658 v
->value_float_4
[3] = ctx
->Current
.RasterTexCoords
[unit
][3];
661 case GL_CURRENT_TEXTURE_COORDS
:
662 unit
= ctx
->Texture
.CurrentUnit
;
663 v
->value_float_4
[0] = ctx
->Current
.Attrib
[VERT_ATTRIB_TEX0
+ unit
][0];
664 v
->value_float_4
[1] = ctx
->Current
.Attrib
[VERT_ATTRIB_TEX0
+ unit
][1];
665 v
->value_float_4
[2] = ctx
->Current
.Attrib
[VERT_ATTRIB_TEX0
+ unit
][2];
666 v
->value_float_4
[3] = ctx
->Current
.Attrib
[VERT_ATTRIB_TEX0
+ unit
][3];
669 case GL_COLOR_WRITEMASK
:
670 v
->value_int_4
[0] = ctx
->Color
.ColorMask
[0][RCOMP
] ? 1 : 0;
671 v
->value_int_4
[1] = ctx
->Color
.ColorMask
[0][GCOMP
] ? 1 : 0;
672 v
->value_int_4
[2] = ctx
->Color
.ColorMask
[0][BCOMP
] ? 1 : 0;
673 v
->value_int_4
[3] = ctx
->Color
.ColorMask
[0][ACOMP
] ? 1 : 0;
677 v
->value_bool
= ctx
->Current
.Attrib
[VERT_ATTRIB_EDGEFLAG
][0] == 1.0F
;
681 v
->value_enum
= ctx
->ReadBuffer
->ColorReadBuffer
;
684 case GL_MAP2_GRID_DOMAIN
:
685 v
->value_float_4
[0] = ctx
->Eval
.MapGrid2u1
;
686 v
->value_float_4
[1] = ctx
->Eval
.MapGrid2u2
;
687 v
->value_float_4
[2] = ctx
->Eval
.MapGrid2v1
;
688 v
->value_float_4
[3] = ctx
->Eval
.MapGrid2v2
;
691 case GL_TEXTURE_STACK_DEPTH
:
692 unit
= ctx
->Texture
.CurrentUnit
;
693 v
->value_int
= ctx
->TextureMatrixStack
[unit
].Depth
+ 1;
695 case GL_TEXTURE_MATRIX
:
696 unit
= ctx
->Texture
.CurrentUnit
;
697 v
->value_matrix
= ctx
->TextureMatrixStack
[unit
].Top
;
700 case GL_TEXTURE_COORD_ARRAY
:
701 case GL_TEXTURE_COORD_ARRAY_SIZE
:
702 case GL_TEXTURE_COORD_ARRAY_TYPE
:
703 case GL_TEXTURE_COORD_ARRAY_STRIDE
:
704 array
= &ctx
->Array
.VAO
->VertexAttrib
[VERT_ATTRIB_TEX(ctx
->Array
.ActiveTexture
)];
705 v
->value_int
= *(GLuint
*) ((char *) array
+ d
->offset
);
708 case GL_ACTIVE_TEXTURE_ARB
:
709 v
->value_int
= GL_TEXTURE0_ARB
+ ctx
->Texture
.CurrentUnit
;
711 case GL_CLIENT_ACTIVE_TEXTURE_ARB
:
712 v
->value_int
= GL_TEXTURE0_ARB
+ ctx
->Array
.ActiveTexture
;
715 case GL_MODELVIEW_STACK_DEPTH
:
716 case GL_PROJECTION_STACK_DEPTH
:
717 v
->value_int
= *(GLint
*) ((char *) ctx
+ d
->offset
) + 1;
720 case GL_MAX_TEXTURE_SIZE
:
721 case GL_MAX_3D_TEXTURE_SIZE
:
722 case GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB
:
723 p
= (GLuint
*) ((char *) ctx
+ d
->offset
);
724 v
->value_int
= 1 << (*p
- 1);
728 v
->value_int_4
[0] = ctx
->Scissor
.ScissorArray
[0].X
;
729 v
->value_int_4
[1] = ctx
->Scissor
.ScissorArray
[0].Y
;
730 v
->value_int_4
[2] = ctx
->Scissor
.ScissorArray
[0].Width
;
731 v
->value_int_4
[3] = ctx
->Scissor
.ScissorArray
[0].Height
;
734 case GL_SCISSOR_TEST
:
735 v
->value_bool
= ctx
->Scissor
.EnableFlags
& 1;
740 ctx
->ListState
.CurrentList
? ctx
->ListState
.CurrentList
->Name
: 0;
743 if (!ctx
->CompileFlag
)
745 else if (ctx
->ExecuteFlag
)
746 v
->value_enum
= GL_COMPILE_AND_EXECUTE
;
748 v
->value_enum
= GL_COMPILE
;
752 v
->value_float_4
[0] = ctx
->ViewportArray
[0].X
;
753 v
->value_float_4
[1] = ctx
->ViewportArray
[0].Y
;
754 v
->value_float_4
[2] = ctx
->ViewportArray
[0].Width
;
755 v
->value_float_4
[3] = ctx
->ViewportArray
[0].Height
;
759 v
->value_double_2
[0] = ctx
->ViewportArray
[0].Near
;
760 v
->value_double_2
[1] = ctx
->ViewportArray
[0].Far
;
763 case GL_ACTIVE_STENCIL_FACE_EXT
:
764 v
->value_enum
= ctx
->Stencil
.ActiveFace
? GL_BACK
: GL_FRONT
;
767 case GL_STENCIL_FAIL
:
768 v
->value_enum
= ctx
->Stencil
.FailFunc
[ctx
->Stencil
.ActiveFace
];
770 case GL_STENCIL_FUNC
:
771 v
->value_enum
= ctx
->Stencil
.Function
[ctx
->Stencil
.ActiveFace
];
773 case GL_STENCIL_PASS_DEPTH_FAIL
:
774 v
->value_enum
= ctx
->Stencil
.ZFailFunc
[ctx
->Stencil
.ActiveFace
];
776 case GL_STENCIL_PASS_DEPTH_PASS
:
777 v
->value_enum
= ctx
->Stencil
.ZPassFunc
[ctx
->Stencil
.ActiveFace
];
780 v
->value_int
= _mesa_get_stencil_ref(ctx
, ctx
->Stencil
.ActiveFace
);
782 case GL_STENCIL_BACK_REF
:
783 v
->value_int
= _mesa_get_stencil_ref(ctx
, 1);
785 case GL_STENCIL_VALUE_MASK
:
786 v
->value_int
= ctx
->Stencil
.ValueMask
[ctx
->Stencil
.ActiveFace
];
788 case GL_STENCIL_WRITEMASK
:
789 v
->value_int
= ctx
->Stencil
.WriteMask
[ctx
->Stencil
.ActiveFace
];
792 case GL_NUM_EXTENSIONS
:
793 v
->value_int
= _mesa_get_extension_count(ctx
);
796 case GL_IMPLEMENTATION_COLOR_READ_TYPE_OES
:
797 v
->value_int
= _mesa_get_color_read_type(ctx
, NULL
, "glGetIntegerv");
799 case GL_IMPLEMENTATION_COLOR_READ_FORMAT_OES
:
800 v
->value_int
= _mesa_get_color_read_format(ctx
, NULL
, "glGetIntegerv");
803 case GL_CURRENT_MATRIX_STACK_DEPTH_ARB
:
804 v
->value_int
= ctx
->CurrentStack
->Depth
+ 1;
806 case GL_CURRENT_MATRIX_ARB
:
807 case GL_TRANSPOSE_CURRENT_MATRIX_ARB
:
808 v
->value_matrix
= ctx
->CurrentStack
->Top
;
811 case GL_NUM_COMPRESSED_TEXTURE_FORMATS_ARB
:
812 v
->value_int
= _mesa_get_compressed_formats(ctx
, NULL
);
814 case GL_COMPRESSED_TEXTURE_FORMATS_ARB
:
816 _mesa_get_compressed_formats(ctx
, v
->value_int_n
.ints
);
817 assert(v
->value_int_n
.n
<= (int) ARRAY_SIZE(v
->value_int_n
.ints
));
820 case GL_MAX_VARYING_FLOATS_ARB
:
821 v
->value_int
= ctx
->Const
.MaxVarying
* 4;
824 /* Various object names */
826 case GL_TEXTURE_BINDING_1D
:
827 case GL_TEXTURE_BINDING_2D
:
828 case GL_TEXTURE_BINDING_3D
:
829 case GL_TEXTURE_BINDING_1D_ARRAY_EXT
:
830 case GL_TEXTURE_BINDING_2D_ARRAY_EXT
:
831 case GL_TEXTURE_BINDING_CUBE_MAP_ARB
:
832 case GL_TEXTURE_BINDING_RECTANGLE_NV
:
833 case GL_TEXTURE_BINDING_EXTERNAL_OES
:
834 case GL_TEXTURE_BINDING_CUBE_MAP_ARRAY
:
835 case GL_TEXTURE_BINDING_2D_MULTISAMPLE
:
836 case GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY
:
837 unit
= ctx
->Texture
.CurrentUnit
;
839 ctx
->Texture
.Unit
[unit
].CurrentTex
[d
->offset
]->Name
;
842 /* GL_EXT_packed_float */
843 case GL_RGBA_SIGNED_COMPONENTS_EXT
:
845 /* Note: we only check the 0th color attachment. */
846 const struct gl_renderbuffer
*rb
=
847 ctx
->DrawBuffer
->_ColorDrawBuffers
[0];
848 if (rb
&& _mesa_is_format_signed(rb
->Format
)) {
849 /* Issue 17 of GL_EXT_packed_float: If a component (such as
850 * alpha) has zero bits, the component should not be considered
851 * signed and so the bit for the respective component should be
855 _mesa_get_format_bits(rb
->Format
, GL_RED_BITS
);
857 _mesa_get_format_bits(rb
->Format
, GL_GREEN_BITS
);
859 _mesa_get_format_bits(rb
->Format
, GL_BLUE_BITS
);
861 _mesa_get_format_bits(rb
->Format
, GL_ALPHA_BITS
);
863 _mesa_get_format_bits(rb
->Format
, GL_TEXTURE_LUMINANCE_SIZE
);
865 _mesa_get_format_bits(rb
->Format
, GL_TEXTURE_INTENSITY_SIZE
);
867 v
->value_int_4
[0] = r_bits
+ l_bits
+ i_bits
> 0;
868 v
->value_int_4
[1] = g_bits
+ l_bits
+ i_bits
> 0;
869 v
->value_int_4
[2] = b_bits
+ l_bits
+ i_bits
> 0;
870 v
->value_int_4
[3] = a_bits
+ i_bits
> 0;
876 v
->value_int_4
[3] = 0;
881 /* GL_ARB_vertex_buffer_object */
882 case GL_VERTEX_ARRAY_BUFFER_BINDING_ARB
:
883 case GL_NORMAL_ARRAY_BUFFER_BINDING_ARB
:
884 case GL_COLOR_ARRAY_BUFFER_BINDING_ARB
:
885 case GL_INDEX_ARRAY_BUFFER_BINDING_ARB
:
886 case GL_EDGE_FLAG_ARRAY_BUFFER_BINDING_ARB
:
887 case GL_SECONDARY_COLOR_ARRAY_BUFFER_BINDING_ARB
:
888 case GL_FOG_COORDINATE_ARRAY_BUFFER_BINDING_ARB
:
889 buffer_obj
= (struct gl_buffer_object
**)
890 ((char *) ctx
->Array
.VAO
+ d
->offset
);
891 v
->value_int
= (*buffer_obj
)->Name
;
893 case GL_ARRAY_BUFFER_BINDING_ARB
:
894 v
->value_int
= ctx
->Array
.ArrayBufferObj
->Name
;
896 case GL_TEXTURE_COORD_ARRAY_BUFFER_BINDING_ARB
:
898 ctx
->Array
.VAO
->BufferBinding
[VERT_ATTRIB_TEX(ctx
->Array
.ActiveTexture
)].BufferObj
->Name
;
900 case GL_ELEMENT_ARRAY_BUFFER_BINDING_ARB
:
901 v
->value_int
= ctx
->Array
.VAO
->IndexBufferObj
->Name
;
904 /* ARB_vertex_array_bgra */
905 case GL_COLOR_ARRAY_SIZE
:
906 array
= &ctx
->Array
.VAO
->VertexAttrib
[VERT_ATTRIB_COLOR0
];
907 v
->value_int
= array
->Format
== GL_BGRA
? GL_BGRA
: array
->Size
;
909 case GL_SECONDARY_COLOR_ARRAY_SIZE
:
910 array
= &ctx
->Array
.VAO
->VertexAttrib
[VERT_ATTRIB_COLOR1
];
911 v
->value_int
= array
->Format
== GL_BGRA
? GL_BGRA
: array
->Size
;
914 /* ARB_copy_buffer */
915 case GL_COPY_READ_BUFFER
:
916 v
->value_int
= ctx
->CopyReadBuffer
->Name
;
918 case GL_COPY_WRITE_BUFFER
:
919 v
->value_int
= ctx
->CopyWriteBuffer
->Name
;
922 case GL_PIXEL_PACK_BUFFER_BINDING_EXT
:
923 v
->value_int
= ctx
->Pack
.BufferObj
->Name
;
925 case GL_PIXEL_UNPACK_BUFFER_BINDING_EXT
:
926 v
->value_int
= ctx
->Unpack
.BufferObj
->Name
;
928 case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING
:
929 v
->value_int
= ctx
->TransformFeedback
.CurrentBuffer
->Name
;
931 case GL_TRANSFORM_FEEDBACK_BUFFER_PAUSED
:
932 v
->value_int
= ctx
->TransformFeedback
.CurrentObject
->Paused
;
934 case GL_TRANSFORM_FEEDBACK_BUFFER_ACTIVE
:
935 v
->value_int
= ctx
->TransformFeedback
.CurrentObject
->Active
;
937 case GL_TRANSFORM_FEEDBACK_BINDING
:
938 v
->value_int
= ctx
->TransformFeedback
.CurrentObject
->Name
;
940 case GL_CURRENT_PROGRAM
:
941 /* The Changelog of the ARB_separate_shader_objects spec says:
943 * 24 25 Jul 2011 pbrown Remove the language erroneously deleting
944 * CURRENT_PROGRAM. In the EXT extension, this
945 * token was aliased to ACTIVE_PROGRAM_EXT, and
946 * was used to indicate the last program set by
947 * either ActiveProgramEXT or UseProgram. In
948 * the ARB extension, the SSO active programs
949 * are now program pipeline object state and
950 * CURRENT_PROGRAM should still be used to query
951 * the last program set by UseProgram (bug 7822).
954 ctx
->Shader
.ActiveProgram
? ctx
->Shader
.ActiveProgram
->Name
: 0;
956 case GL_READ_FRAMEBUFFER_BINDING_EXT
:
957 v
->value_int
= ctx
->ReadBuffer
->Name
;
959 case GL_RENDERBUFFER_BINDING_EXT
:
961 ctx
->CurrentRenderbuffer
? ctx
->CurrentRenderbuffer
->Name
: 0;
963 case GL_POINT_SIZE_ARRAY_BUFFER_BINDING_OES
:
964 v
->value_int
= ctx
->Array
.VAO
->BufferBinding
[VERT_ATTRIB_POINT_SIZE
].BufferObj
->Name
;
968 if (_mesa_get_clamp_fragment_color(ctx
, ctx
->DrawBuffer
))
969 COPY_4FV(v
->value_float_4
, ctx
->Fog
.Color
);
971 COPY_4FV(v
->value_float_4
, ctx
->Fog
.ColorUnclamped
);
973 case GL_COLOR_CLEAR_VALUE
:
974 if (_mesa_get_clamp_fragment_color(ctx
, ctx
->DrawBuffer
)) {
975 v
->value_float_4
[0] = CLAMP(ctx
->Color
.ClearColor
.f
[0], 0.0F
, 1.0F
);
976 v
->value_float_4
[1] = CLAMP(ctx
->Color
.ClearColor
.f
[1], 0.0F
, 1.0F
);
977 v
->value_float_4
[2] = CLAMP(ctx
->Color
.ClearColor
.f
[2], 0.0F
, 1.0F
);
978 v
->value_float_4
[3] = CLAMP(ctx
->Color
.ClearColor
.f
[3], 0.0F
, 1.0F
);
980 COPY_4FV(v
->value_float_4
, ctx
->Color
.ClearColor
.f
);
982 case GL_BLEND_COLOR_EXT
:
983 if (_mesa_get_clamp_fragment_color(ctx
, ctx
->DrawBuffer
))
984 COPY_4FV(v
->value_float_4
, ctx
->Color
.BlendColor
);
986 COPY_4FV(v
->value_float_4
, ctx
->Color
.BlendColorUnclamped
);
988 case GL_ALPHA_TEST_REF
:
989 if (_mesa_get_clamp_fragment_color(ctx
, ctx
->DrawBuffer
))
990 v
->value_float
= ctx
->Color
.AlphaRef
;
992 v
->value_float
= ctx
->Color
.AlphaRefUnclamped
;
994 case GL_MAX_VERTEX_UNIFORM_VECTORS
:
995 v
->value_int
= ctx
->Const
.Program
[MESA_SHADER_VERTEX
].MaxUniformComponents
/ 4;
998 case GL_MAX_FRAGMENT_UNIFORM_VECTORS
:
999 v
->value_int
= ctx
->Const
.Program
[MESA_SHADER_FRAGMENT
].MaxUniformComponents
/ 4;
1002 /* GL_ARB_texture_buffer_object */
1003 case GL_TEXTURE_BUFFER_ARB
:
1004 v
->value_int
= ctx
->Texture
.BufferObject
->Name
;
1006 case GL_TEXTURE_BINDING_BUFFER_ARB
:
1007 unit
= ctx
->Texture
.CurrentUnit
;
1009 ctx
->Texture
.Unit
[unit
].CurrentTex
[TEXTURE_BUFFER_INDEX
]->Name
;
1011 case GL_TEXTURE_BUFFER_DATA_STORE_BINDING_ARB
:
1013 struct gl_buffer_object
*buf
=
1014 ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
]
1015 .CurrentTex
[TEXTURE_BUFFER_INDEX
]->BufferObject
;
1016 v
->value_int
= buf
? buf
->Name
: 0;
1019 case GL_TEXTURE_BUFFER_FORMAT_ARB
:
1020 v
->value_int
= ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
]
1021 .CurrentTex
[TEXTURE_BUFFER_INDEX
]->BufferObjectFormat
;
1024 /* GL_ARB_sampler_objects */
1025 case GL_SAMPLER_BINDING
:
1027 struct gl_sampler_object
*samp
=
1028 ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
].Sampler
;
1029 v
->value_int
= samp
? samp
->Name
: 0;
1032 /* GL_ARB_uniform_buffer_object */
1033 case GL_UNIFORM_BUFFER_BINDING
:
1034 v
->value_int
= ctx
->UniformBuffer
->Name
;
1036 /* GL_ARB_shader_storage_buffer_object */
1037 case GL_SHADER_STORAGE_BUFFER_BINDING
:
1038 v
->value_int
= ctx
->ShaderStorageBuffer
->Name
;
1040 /* GL_ARB_query_buffer_object */
1041 case GL_QUERY_BUFFER_BINDING
:
1042 v
->value_int
= ctx
->QueryBuffer
->Name
;
1044 /* GL_ARB_timer_query */
1046 if (ctx
->Driver
.GetTimestamp
) {
1047 v
->value_int64
= ctx
->Driver
.GetTimestamp(ctx
);
1050 _mesa_problem(ctx
, "driver doesn't implement GetTimestamp");
1054 case GL_DEBUG_OUTPUT
:
1055 case GL_DEBUG_OUTPUT_SYNCHRONOUS
:
1056 case GL_DEBUG_LOGGED_MESSAGES
:
1057 case GL_DEBUG_NEXT_LOGGED_MESSAGE_LENGTH
:
1058 case GL_DEBUG_GROUP_STACK_DEPTH
:
1059 v
->value_int
= _mesa_get_debug_state_int(ctx
, d
->pname
);
1061 /* GL_ARB_shader_atomic_counters */
1062 case GL_ATOMIC_COUNTER_BUFFER_BINDING
:
1063 if (ctx
->AtomicBuffer
) {
1064 v
->value_int
= ctx
->AtomicBuffer
->Name
;
1069 /* GL_ARB_draw_indirect */
1070 case GL_DRAW_INDIRECT_BUFFER_BINDING
:
1071 v
->value_int
= ctx
->DrawIndirectBuffer
->Name
;
1073 /* GL_ARB_indirect_parameters */
1074 case GL_PARAMETER_BUFFER_BINDING_ARB
:
1075 v
->value_int
= ctx
->ParameterBuffer
->Name
;
1077 /* GL_ARB_separate_shader_objects */
1078 case GL_PROGRAM_PIPELINE_BINDING
:
1079 if (ctx
->Pipeline
.Current
) {
1080 v
->value_int
= ctx
->Pipeline
.Current
->Name
;
1085 /* GL_ARB_compute_shader */
1086 case GL_DISPATCH_INDIRECT_BUFFER_BINDING
:
1087 v
->value_int
= ctx
->DispatchIndirectBuffer
->Name
;
1089 /* GL_ARB_multisample */
1091 v
->value_int
= _mesa_geometric_samples(ctx
->DrawBuffer
);
1093 case GL_SAMPLE_BUFFERS
:
1094 v
->value_int
= _mesa_geometric_samples(ctx
->DrawBuffer
) > 0;
1096 /* GL_EXT_textrue_integer */
1097 case GL_RGBA_INTEGER_MODE_EXT
:
1098 v
->value_int
= (ctx
->DrawBuffer
->_IntegerBuffers
!= 0);
1100 /* GL_ATI_meminfo & GL_NVX_gpu_memory_info */
1101 case GL_VBO_FREE_MEMORY_ATI
:
1102 case GL_TEXTURE_FREE_MEMORY_ATI
:
1103 case GL_RENDERBUFFER_FREE_MEMORY_ATI
:
1104 case GL_GPU_MEMORY_INFO_DEDICATED_VIDMEM_NVX
:
1105 case GL_GPU_MEMORY_INFO_TOTAL_AVAILABLE_MEMORY_NVX
:
1106 case GL_GPU_MEMORY_INFO_CURRENT_AVAILABLE_VIDMEM_NVX
:
1107 case GL_GPU_MEMORY_INFO_EVICTION_COUNT_NVX
:
1108 case GL_GPU_MEMORY_INFO_EVICTED_MEMORY_NVX
:
1110 struct gl_memory_info info
;
1112 ctx
->Driver
.QueryMemoryInfo(ctx
, &info
);
1114 if (d
->pname
== GL_GPU_MEMORY_INFO_DEDICATED_VIDMEM_NVX
)
1115 v
->value_int
= info
.total_device_memory
;
1116 else if (d
->pname
== GL_GPU_MEMORY_INFO_TOTAL_AVAILABLE_MEMORY_NVX
)
1117 v
->value_int
= info
.total_device_memory
+
1118 info
.total_staging_memory
;
1119 else if (d
->pname
== GL_GPU_MEMORY_INFO_CURRENT_AVAILABLE_VIDMEM_NVX
)
1120 v
->value_int
= info
.avail_device_memory
;
1121 else if (d
->pname
== GL_GPU_MEMORY_INFO_EVICTION_COUNT_NVX
)
1122 v
->value_int
= info
.nr_device_memory_evictions
;
1123 else if (d
->pname
== GL_GPU_MEMORY_INFO_EVICTED_MEMORY_NVX
)
1124 v
->value_int
= info
.device_memory_evicted
;
1126 /* ATI free memory enums.
1128 * Since the GPU memory is (usually) page-table based, every two
1129 * consecutive elements are equal. From the GL_ATI_meminfo
1132 * "param[0] - total memory free in the pool
1133 * param[1] - largest available free block in the pool
1134 * param[2] - total auxiliary memory free
1135 * param[3] - largest auxiliary free block"
1137 * All three (VBO, TEXTURE, RENDERBUFFER) queries return
1138 * the same numbers here.
1140 v
->value_int_4
[0] = info
.avail_device_memory
;
1141 v
->value_int_4
[1] = info
.avail_device_memory
;
1142 v
->value_int_4
[2] = info
.avail_staging_memory
;
1143 v
->value_int_4
[3] = info
.avail_staging_memory
;
1151 * Check extra constraints on a struct value_desc descriptor
1153 * If a struct value_desc has a non-NULL extra pointer, it means that
1154 * there are a number of extra constraints to check or actions to
1155 * perform. The extras is just an integer array where each integer
1156 * encode different constraints or actions.
1158 * \param ctx current context
1159 * \param func name of calling glGet*v() function for error reporting
1160 * \param d the struct value_desc that has the extra constraints
1162 * \return GL_FALSE if all of the constraints were not satisfied,
1163 * otherwise GL_TRUE.
1166 check_extra(struct gl_context
*ctx
, const char *func
, const struct value_desc
*d
)
1168 const GLuint version
= ctx
->Version
;
1169 GLboolean api_check
= GL_FALSE
;
1170 GLboolean api_found
= GL_FALSE
;
1173 for (e
= d
->extra
; *e
!= EXTRA_END
; e
++) {
1175 case EXTRA_VERSION_30
:
1176 api_check
= GL_TRUE
;
1178 api_found
= GL_TRUE
;
1180 case EXTRA_VERSION_31
:
1181 api_check
= GL_TRUE
;
1183 api_found
= GL_TRUE
;
1185 case EXTRA_VERSION_32
:
1186 api_check
= GL_TRUE
;
1188 api_found
= GL_TRUE
;
1190 case EXTRA_NEW_FRAG_CLAMP
:
1191 if (ctx
->NewState
& (_NEW_BUFFERS
| _NEW_FRAG_CLAMP
))
1192 _mesa_update_state(ctx
);
1195 api_check
= GL_TRUE
;
1196 if (ctx
->API
== API_OPENGLES2
)
1197 api_found
= GL_TRUE
;
1200 api_check
= GL_TRUE
;
1201 if (_mesa_is_gles3(ctx
))
1202 api_found
= GL_TRUE
;
1204 case EXTRA_API_ES31
:
1205 api_check
= GL_TRUE
;
1206 if (_mesa_is_gles31(ctx
))
1207 api_found
= GL_TRUE
;
1209 case EXTRA_API_ES32
:
1210 api_check
= GL_TRUE
;
1211 if (_mesa_is_gles32(ctx
))
1212 api_found
= GL_TRUE
;
1215 api_check
= GL_TRUE
;
1216 if (_mesa_is_desktop_gl(ctx
))
1217 api_found
= GL_TRUE
;
1219 case EXTRA_API_GL_CORE
:
1220 api_check
= GL_TRUE
;
1221 if (ctx
->API
== API_OPENGL_CORE
)
1222 api_found
= GL_TRUE
;
1224 case EXTRA_NEW_BUFFERS
:
1225 if (ctx
->NewState
& _NEW_BUFFERS
)
1226 _mesa_update_state(ctx
);
1228 case EXTRA_FLUSH_CURRENT
:
1229 FLUSH_CURRENT(ctx
, 0);
1231 case EXTRA_VALID_DRAW_BUFFER
:
1232 if (d
->pname
- GL_DRAW_BUFFER0_ARB
>= ctx
->Const
.MaxDrawBuffers
) {
1233 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(draw buffer %u)",
1234 func
, d
->pname
- GL_DRAW_BUFFER0_ARB
);
1238 case EXTRA_VALID_TEXTURE_UNIT
:
1239 if (ctx
->Texture
.CurrentUnit
>= ctx
->Const
.MaxTextureCoordUnits
) {
1240 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(texture %u)",
1241 func
, ctx
->Texture
.CurrentUnit
);
1245 case EXTRA_VALID_CLIP_DISTANCE
:
1246 if (d
->pname
- GL_CLIP_DISTANCE0
>= ctx
->Const
.MaxClipPlanes
) {
1247 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(clip distance %u)",
1248 func
, d
->pname
- GL_CLIP_DISTANCE0
);
1252 case EXTRA_GLSL_130
:
1253 api_check
= GL_TRUE
;
1254 if (ctx
->Const
.GLSLVersion
>= 130)
1255 api_found
= GL_TRUE
;
1257 case EXTRA_EXT_UBO_GS
:
1258 api_check
= GL_TRUE
;
1259 if (ctx
->Extensions
.ARB_uniform_buffer_object
&&
1260 _mesa_has_geometry_shaders(ctx
))
1261 api_found
= GL_TRUE
;
1263 case EXTRA_EXT_ATOMICS_GS
:
1264 api_check
= GL_TRUE
;
1265 if (ctx
->Extensions
.ARB_shader_atomic_counters
&&
1266 _mesa_has_geometry_shaders(ctx
))
1267 api_found
= GL_TRUE
;
1269 case EXTRA_EXT_SHADER_IMAGE_GS
:
1270 api_check
= GL_TRUE
;
1271 if (ctx
->Extensions
.ARB_shader_image_load_store
&&
1272 _mesa_has_geometry_shaders(ctx
))
1273 api_found
= GL_TRUE
;
1275 case EXTRA_EXT_ATOMICS_TESS
:
1276 api_check
= GL_TRUE
;
1277 api_found
= ctx
->Extensions
.ARB_shader_atomic_counters
&&
1278 _mesa_has_tessellation(ctx
);
1280 case EXTRA_EXT_SHADER_IMAGE_TESS
:
1281 api_check
= GL_TRUE
;
1282 api_found
= ctx
->Extensions
.ARB_shader_image_load_store
&&
1283 _mesa_has_tessellation(ctx
);
1285 case EXTRA_EXT_SSBO_GS
:
1286 api_check
= GL_TRUE
;
1287 if (ctx
->Extensions
.ARB_shader_storage_buffer_object
&&
1288 _mesa_has_geometry_shaders(ctx
))
1289 api_found
= GL_TRUE
;
1291 case EXTRA_EXT_FB_NO_ATTACH_GS
:
1292 api_check
= GL_TRUE
;
1293 if (ctx
->Extensions
.ARB_framebuffer_no_attachments
&&
1294 (_mesa_is_desktop_gl(ctx
) ||
1295 _mesa_has_OES_geometry_shader(ctx
)))
1296 api_found
= GL_TRUE
;
1298 case EXTRA_EXT_ES_GS
:
1299 api_check
= GL_TRUE
;
1300 if (_mesa_has_OES_geometry_shader(ctx
))
1301 api_found
= GL_TRUE
;
1303 case EXTRA_EXT_PROVOKING_VERTEX_32
:
1306 api_found
= ctx
->Extensions
.EXT_provoking_vertex
;
1310 default: /* *e is a offset into the extension struct */
1311 api_check
= GL_TRUE
;
1312 if (*(GLboolean
*) ((char *) &ctx
->Extensions
+ *e
))
1313 api_found
= GL_TRUE
;
1318 if (api_check
&& !api_found
) {
1319 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=%s)", func
,
1320 _mesa_enum_to_string(d
->pname
));
1327 static const struct value_desc error_value
=
1328 { 0, 0, TYPE_INVALID
, NO_OFFSET
, NO_EXTRA
};
1331 * Find the struct value_desc corresponding to the enum 'pname'.
1333 * We hash the enum value to get an index into the 'table' array,
1334 * which holds the index in the 'values' array of struct value_desc.
1335 * Once we've found the entry, we do the extra checks, if any, then
1336 * look up the value and return a pointer to it.
1338 * If the value has to be computed (for example, it's the result of a
1339 * function call or we need to add 1 to it), we use the tmp 'v' to
1342 * \param func name of glGet*v() func for error reporting
1343 * \param pname the enum value we're looking up
1344 * \param p is were we return the pointer to the value
1345 * \param v a tmp union value variable in the calling glGet*v() function
1347 * \return the struct value_desc corresponding to the enum or a struct
1348 * value_desc of TYPE_INVALID if not found. This lets the calling
1349 * glGet*v() function jump right into a switch statement and
1350 * handle errors there instead of having to check for NULL.
1352 static const struct value_desc
*
1353 find_value(const char *func
, GLenum pname
, void **p
, union value
*v
)
1355 GET_CURRENT_CONTEXT(ctx
);
1356 struct gl_texture_unit
*unit
;
1358 const struct value_desc
*d
;
1362 /* We index into the table_set[] list of per-API hash tables using the API's
1363 * value in the gl_api enum. Since GLES 3 doesn't have an API_OPENGL* enum
1364 * value since it's compatible with GLES2 its entry in table_set[] is at the
1367 STATIC_ASSERT(ARRAY_SIZE(table_set
) == API_OPENGL_LAST
+ 4);
1368 if (ctx
->API
== API_OPENGLES2
) {
1369 if (ctx
->Version
>= 32)
1370 api
= API_OPENGL_LAST
+ 3;
1371 else if (ctx
->Version
>= 31)
1372 api
= API_OPENGL_LAST
+ 2;
1373 else if (ctx
->Version
>= 30)
1374 api
= API_OPENGL_LAST
+ 1;
1376 mask
= ARRAY_SIZE(table(api
)) - 1;
1377 hash
= (pname
* prime_factor
);
1379 int idx
= table(api
)[hash
& mask
];
1381 /* If the enum isn't valid, the hash walk ends with index 0,
1382 * pointing to the first entry of values[] which doesn't hold
1383 * any valid enum. */
1384 if (unlikely(idx
== 0)) {
1385 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=%s)", func
,
1386 _mesa_enum_to_string(pname
));
1387 return &error_value
;
1391 if (likely(d
->pname
== pname
))
1397 if (unlikely(d
->extra
&& !check_extra(ctx
, func
, d
)))
1398 return &error_value
;
1400 switch (d
->location
) {
1402 *p
= ((char *) ctx
->DrawBuffer
+ d
->offset
);
1405 *p
= ((char *) ctx
+ d
->offset
);
1408 *p
= ((char *) ctx
->Array
.VAO
+ d
->offset
);
1411 unit
= &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1412 *p
= ((char *) unit
+ d
->offset
);
1415 find_custom_value(ctx
, d
, v
);
1423 /* silence warning */
1424 return &error_value
;
1427 static const int transpose
[] = {
1435 _mesa_GetBooleanv(GLenum pname
, GLboolean
*params
)
1437 const struct value_desc
*d
;
1443 d
= find_value("glGetBooleanv", pname
, &p
, &v
);
1448 params
[0] = INT_TO_BOOLEAN(d
->offset
);
1452 params
[7] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[7]);
1453 params
[6] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[6]);
1454 params
[5] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[5]);
1455 params
[4] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[4]);
1458 params
[3] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[3]);
1461 params
[2] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[2]);
1464 params
[1] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[1]);
1467 params
[0] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[0]);
1470 case TYPE_DOUBLEN_2
:
1471 params
[1] = FLOAT_TO_BOOLEAN(((GLdouble
*) p
)[1]);
1473 params
[0] = FLOAT_TO_BOOLEAN(((GLdouble
*) p
)[0]);
1478 params
[3] = INT_TO_BOOLEAN(((GLint
*) p
)[3]);
1481 params
[2] = INT_TO_BOOLEAN(((GLint
*) p
)[2]);
1485 params
[1] = INT_TO_BOOLEAN(((GLint
*) p
)[1]);
1489 params
[0] = INT_TO_BOOLEAN(((GLint
*) p
)[0]);
1493 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1494 params
[i
] = INT_TO_BOOLEAN(v
.value_int_n
.ints
[i
]);
1498 params
[0] = INT64_TO_BOOLEAN(((GLint64
*) p
)[0]);
1502 params
[0] = ((GLboolean
*) p
)[0];
1506 m
= *(GLmatrix
**) p
;
1507 for (i
= 0; i
< 16; i
++)
1508 params
[i
] = FLOAT_TO_BOOLEAN(m
->m
[i
]);
1512 m
= *(GLmatrix
**) p
;
1513 for (i
= 0; i
< 16; i
++)
1514 params
[i
] = FLOAT_TO_BOOLEAN(m
->m
[transpose
[i
]]);
1525 shift
= d
->type
- TYPE_BIT_0
;
1526 params
[0] = (*(GLbitfield
*) p
>> shift
) & 1;
1532 _mesa_GetFloatv(GLenum pname
, GLfloat
*params
)
1534 const struct value_desc
*d
;
1540 d
= find_value("glGetFloatv", pname
, &p
, &v
);
1545 params
[0] = (GLfloat
) d
->offset
;
1549 params
[7] = ((GLfloat
*) p
)[7];
1550 params
[6] = ((GLfloat
*) p
)[6];
1551 params
[5] = ((GLfloat
*) p
)[5];
1552 params
[4] = ((GLfloat
*) p
)[4];
1555 params
[3] = ((GLfloat
*) p
)[3];
1558 params
[2] = ((GLfloat
*) p
)[2];
1561 params
[1] = ((GLfloat
*) p
)[1];
1564 params
[0] = ((GLfloat
*) p
)[0];
1567 case TYPE_DOUBLEN_2
:
1568 params
[1] = (GLfloat
) (((GLdouble
*) p
)[1]);
1570 params
[0] = (GLfloat
) (((GLdouble
*) p
)[0]);
1574 params
[3] = (GLfloat
) (((GLint
*) p
)[3]);
1576 params
[2] = (GLfloat
) (((GLint
*) p
)[2]);
1579 params
[1] = (GLfloat
) (((GLint
*) p
)[1]);
1582 params
[0] = (GLfloat
) (((GLint
*) p
)[0]);
1586 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1587 params
[i
] = (GLfloat
) v
.value_int_n
.ints
[i
];
1591 params
[3] = (GLfloat
) (((GLuint
*) p
)[3]);
1593 params
[2] = (GLfloat
) (((GLuint
*) p
)[2]);
1595 params
[1] = (GLfloat
) (((GLuint
*) p
)[1]);
1597 params
[0] = (GLfloat
) (((GLuint
*) p
)[0]);
1601 params
[0] = (GLfloat
) (((GLint64
*) p
)[0]);
1605 params
[0] = BOOLEAN_TO_FLOAT(*(GLboolean
*) p
);
1609 m
= *(GLmatrix
**) p
;
1610 for (i
= 0; i
< 16; i
++)
1611 params
[i
] = m
->m
[i
];
1615 m
= *(GLmatrix
**) p
;
1616 for (i
= 0; i
< 16; i
++)
1617 params
[i
] = m
->m
[transpose
[i
]];
1628 shift
= d
->type
- TYPE_BIT_0
;
1629 params
[0] = BOOLEAN_TO_FLOAT((*(GLbitfield
*) p
>> shift
) & 1);
1635 _mesa_GetIntegerv(GLenum pname
, GLint
*params
)
1637 const struct value_desc
*d
;
1643 d
= find_value("glGetIntegerv", pname
, &p
, &v
);
1648 params
[0] = d
->offset
;
1652 params
[7] = IROUND(((GLfloat
*) p
)[7]);
1653 params
[6] = IROUND(((GLfloat
*) p
)[6]);
1654 params
[5] = IROUND(((GLfloat
*) p
)[5]);
1655 params
[4] = IROUND(((GLfloat
*) p
)[4]);
1657 params
[3] = IROUND(((GLfloat
*) p
)[3]);
1659 params
[2] = IROUND(((GLfloat
*) p
)[2]);
1661 params
[1] = IROUND(((GLfloat
*) p
)[1]);
1663 params
[0] = IROUND(((GLfloat
*) p
)[0]);
1667 params
[3] = FLOAT_TO_INT(((GLfloat
*) p
)[3]);
1669 params
[2] = FLOAT_TO_INT(((GLfloat
*) p
)[2]);
1671 params
[1] = FLOAT_TO_INT(((GLfloat
*) p
)[1]);
1673 params
[0] = FLOAT_TO_INT(((GLfloat
*) p
)[0]);
1676 case TYPE_DOUBLEN_2
:
1677 params
[1] = FLOAT_TO_INT(((GLdouble
*) p
)[1]);
1679 params
[0] = FLOAT_TO_INT(((GLdouble
*) p
)[0]);
1684 params
[3] = ((GLint
*) p
)[3];
1687 params
[2] = ((GLint
*) p
)[2];
1691 params
[1] = ((GLint
*) p
)[1];
1695 params
[0] = ((GLint
*) p
)[0];
1699 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1700 params
[i
] = v
.value_int_n
.ints
[i
];
1704 params
[0] = INT64_TO_INT(((GLint64
*) p
)[0]);
1708 params
[0] = BOOLEAN_TO_INT(*(GLboolean
*) p
);
1712 m
= *(GLmatrix
**) p
;
1713 for (i
= 0; i
< 16; i
++)
1714 params
[i
] = FLOAT_TO_INT(m
->m
[i
]);
1718 m
= *(GLmatrix
**) p
;
1719 for (i
= 0; i
< 16; i
++)
1720 params
[i
] = FLOAT_TO_INT(m
->m
[transpose
[i
]]);
1731 shift
= d
->type
- TYPE_BIT_0
;
1732 params
[0] = (*(GLbitfield
*) p
>> shift
) & 1;
1738 _mesa_GetInteger64v(GLenum pname
, GLint64
*params
)
1740 const struct value_desc
*d
;
1746 d
= find_value("glGetInteger64v", pname
, &p
, &v
);
1751 params
[0] = d
->offset
;
1755 params
[7] = IROUND64(((GLfloat
*) p
)[7]);
1756 params
[6] = IROUND64(((GLfloat
*) p
)[6]);
1757 params
[5] = IROUND64(((GLfloat
*) p
)[5]);
1758 params
[4] = IROUND64(((GLfloat
*) p
)[4]);
1760 params
[3] = IROUND64(((GLfloat
*) p
)[3]);
1762 params
[2] = IROUND64(((GLfloat
*) p
)[2]);
1764 params
[1] = IROUND64(((GLfloat
*) p
)[1]);
1766 params
[0] = IROUND64(((GLfloat
*) p
)[0]);
1770 params
[3] = FLOAT_TO_INT(((GLfloat
*) p
)[3]);
1772 params
[2] = FLOAT_TO_INT(((GLfloat
*) p
)[2]);
1774 params
[1] = FLOAT_TO_INT(((GLfloat
*) p
)[1]);
1776 params
[0] = FLOAT_TO_INT(((GLfloat
*) p
)[0]);
1779 case TYPE_DOUBLEN_2
:
1780 params
[1] = FLOAT_TO_INT(((GLdouble
*) p
)[1]);
1782 params
[0] = FLOAT_TO_INT(((GLdouble
*) p
)[0]);
1786 params
[3] = ((GLint
*) p
)[3];
1788 params
[2] = ((GLint
*) p
)[2];
1791 params
[1] = ((GLint
*) p
)[1];
1794 params
[0] = ((GLint
*) p
)[0];
1798 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1799 params
[i
] = INT_TO_BOOLEAN(v
.value_int_n
.ints
[i
]);
1803 params
[3] = ((GLuint
*) p
)[3];
1805 params
[2] = ((GLuint
*) p
)[2];
1807 params
[1] = ((GLuint
*) p
)[1];
1809 params
[0] = ((GLuint
*) p
)[0];
1813 params
[0] = ((GLint64
*) p
)[0];
1817 params
[0] = ((GLboolean
*) p
)[0];
1821 m
= *(GLmatrix
**) p
;
1822 for (i
= 0; i
< 16; i
++)
1823 params
[i
] = FLOAT_TO_INT64(m
->m
[i
]);
1827 m
= *(GLmatrix
**) p
;
1828 for (i
= 0; i
< 16; i
++)
1829 params
[i
] = FLOAT_TO_INT64(m
->m
[transpose
[i
]]);
1840 shift
= d
->type
- TYPE_BIT_0
;
1841 params
[0] = (*(GLbitfield
*) p
>> shift
) & 1;
1847 _mesa_GetDoublev(GLenum pname
, GLdouble
*params
)
1849 const struct value_desc
*d
;
1855 d
= find_value("glGetDoublev", pname
, &p
, &v
);
1860 params
[0] = d
->offset
;
1864 params
[7] = ((GLfloat
*) p
)[7];
1865 params
[6] = ((GLfloat
*) p
)[6];
1866 params
[5] = ((GLfloat
*) p
)[5];
1867 params
[4] = ((GLfloat
*) p
)[4];
1870 params
[3] = ((GLfloat
*) p
)[3];
1873 params
[2] = ((GLfloat
*) p
)[2];
1876 params
[1] = ((GLfloat
*) p
)[1];
1879 params
[0] = ((GLfloat
*) p
)[0];
1882 case TYPE_DOUBLEN_2
:
1883 params
[1] = ((GLdouble
*) p
)[1];
1885 params
[0] = ((GLdouble
*) p
)[0];
1889 params
[3] = ((GLint
*) p
)[3];
1891 params
[2] = ((GLint
*) p
)[2];
1894 params
[1] = ((GLint
*) p
)[1];
1897 params
[0] = ((GLint
*) p
)[0];
1901 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1902 params
[i
] = v
.value_int_n
.ints
[i
];
1906 params
[3] = ((GLuint
*) p
)[3];
1908 params
[2] = ((GLuint
*) p
)[2];
1910 params
[1] = ((GLuint
*) p
)[1];
1912 params
[0] = ((GLuint
*) p
)[0];
1916 params
[0] = (GLdouble
) (((GLint64
*) p
)[0]);
1920 params
[0] = *(GLboolean
*) p
;
1924 m
= *(GLmatrix
**) p
;
1925 for (i
= 0; i
< 16; i
++)
1926 params
[i
] = m
->m
[i
];
1930 m
= *(GLmatrix
**) p
;
1931 for (i
= 0; i
< 16; i
++)
1932 params
[i
] = m
->m
[transpose
[i
]];
1943 shift
= d
->type
- TYPE_BIT_0
;
1944 params
[0] = (*(GLbitfield
*) p
>> shift
) & 1;
1950 * Convert a GL texture binding enum such as GL_TEXTURE_BINDING_2D
1951 * into the corresponding Mesa texture target index.
1952 * \return TEXTURE_x_INDEX or -1 if binding is invalid
1955 tex_binding_to_index(const struct gl_context
*ctx
, GLenum binding
)
1958 case GL_TEXTURE_BINDING_1D
:
1959 return _mesa_is_desktop_gl(ctx
) ? TEXTURE_1D_INDEX
: -1;
1960 case GL_TEXTURE_BINDING_2D
:
1961 return TEXTURE_2D_INDEX
;
1962 case GL_TEXTURE_BINDING_3D
:
1963 return ctx
->API
!= API_OPENGLES
? TEXTURE_3D_INDEX
: -1;
1964 case GL_TEXTURE_BINDING_CUBE_MAP
:
1965 return ctx
->Extensions
.ARB_texture_cube_map
1966 ? TEXTURE_CUBE_INDEX
: -1;
1967 case GL_TEXTURE_BINDING_RECTANGLE
:
1968 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.NV_texture_rectangle
1969 ? TEXTURE_RECT_INDEX
: -1;
1970 case GL_TEXTURE_BINDING_1D_ARRAY
:
1971 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_array
1972 ? TEXTURE_1D_ARRAY_INDEX
: -1;
1973 case GL_TEXTURE_BINDING_2D_ARRAY
:
1974 return (_mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_array
)
1975 || _mesa_is_gles3(ctx
)
1976 ? TEXTURE_2D_ARRAY_INDEX
: -1;
1977 case GL_TEXTURE_BINDING_BUFFER
:
1978 return (_mesa_has_ARB_texture_buffer_object(ctx
) ||
1979 _mesa_has_OES_texture_buffer(ctx
)) ?
1980 TEXTURE_BUFFER_INDEX
: -1;
1981 case GL_TEXTURE_BINDING_CUBE_MAP_ARRAY
:
1982 return _mesa_has_texture_cube_map_array(ctx
)
1983 ? TEXTURE_CUBE_ARRAY_INDEX
: -1;
1984 case GL_TEXTURE_BINDING_2D_MULTISAMPLE
:
1985 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.ARB_texture_multisample
1986 ? TEXTURE_2D_MULTISAMPLE_INDEX
: -1;
1987 case GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY
:
1988 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.ARB_texture_multisample
1989 ? TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX
: -1;
1995 static enum value_type
1996 find_value_indexed(const char *func
, GLenum pname
, GLuint index
, union value
*v
)
1998 GET_CURRENT_CONTEXT(ctx
);
2003 if (index
>= ctx
->Const
.MaxDrawBuffers
)
2005 if (!ctx
->Extensions
.EXT_draw_buffers2
)
2007 v
->value_int
= (ctx
->Color
.BlendEnabled
>> index
) & 1;
2012 case GL_BLEND_SRC_RGB
:
2013 if (index
>= ctx
->Const
.MaxDrawBuffers
)
2015 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
2017 v
->value_int
= ctx
->Color
.Blend
[index
].SrcRGB
;
2019 case GL_BLEND_SRC_ALPHA
:
2020 if (index
>= ctx
->Const
.MaxDrawBuffers
)
2022 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
2024 v
->value_int
= ctx
->Color
.Blend
[index
].SrcA
;
2028 case GL_BLEND_DST_RGB
:
2029 if (index
>= ctx
->Const
.MaxDrawBuffers
)
2031 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
2033 v
->value_int
= ctx
->Color
.Blend
[index
].DstRGB
;
2035 case GL_BLEND_DST_ALPHA
:
2036 if (index
>= ctx
->Const
.MaxDrawBuffers
)
2038 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
2040 v
->value_int
= ctx
->Color
.Blend
[index
].DstA
;
2042 case GL_BLEND_EQUATION_RGB
:
2043 if (index
>= ctx
->Const
.MaxDrawBuffers
)
2045 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
2047 v
->value_int
= ctx
->Color
.Blend
[index
].EquationRGB
;
2049 case GL_BLEND_EQUATION_ALPHA
:
2050 if (index
>= ctx
->Const
.MaxDrawBuffers
)
2052 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
2054 v
->value_int
= ctx
->Color
.Blend
[index
].EquationA
;
2057 case GL_COLOR_WRITEMASK
:
2058 if (index
>= ctx
->Const
.MaxDrawBuffers
)
2060 if (!ctx
->Extensions
.EXT_draw_buffers2
)
2062 v
->value_int_4
[0] = ctx
->Color
.ColorMask
[index
][RCOMP
] ? 1 : 0;
2063 v
->value_int_4
[1] = ctx
->Color
.ColorMask
[index
][GCOMP
] ? 1 : 0;
2064 v
->value_int_4
[2] = ctx
->Color
.ColorMask
[index
][BCOMP
] ? 1 : 0;
2065 v
->value_int_4
[3] = ctx
->Color
.ColorMask
[index
][ACOMP
] ? 1 : 0;
2068 case GL_SCISSOR_BOX
:
2069 if (index
>= ctx
->Const
.MaxViewports
)
2071 v
->value_int_4
[0] = ctx
->Scissor
.ScissorArray
[index
].X
;
2072 v
->value_int_4
[1] = ctx
->Scissor
.ScissorArray
[index
].Y
;
2073 v
->value_int_4
[2] = ctx
->Scissor
.ScissorArray
[index
].Width
;
2074 v
->value_int_4
[3] = ctx
->Scissor
.ScissorArray
[index
].Height
;
2077 case GL_WINDOW_RECTANGLE_EXT
:
2078 if (!ctx
->Extensions
.EXT_window_rectangles
)
2080 if (index
>= ctx
->Const
.MaxWindowRectangles
)
2082 v
->value_int_4
[0] = ctx
->Scissor
.WindowRects
[index
].X
;
2083 v
->value_int_4
[1] = ctx
->Scissor
.WindowRects
[index
].Y
;
2084 v
->value_int_4
[2] = ctx
->Scissor
.WindowRects
[index
].Width
;
2085 v
->value_int_4
[3] = ctx
->Scissor
.WindowRects
[index
].Height
;
2089 if (index
>= ctx
->Const
.MaxViewports
)
2091 v
->value_float_4
[0] = ctx
->ViewportArray
[index
].X
;
2092 v
->value_float_4
[1] = ctx
->ViewportArray
[index
].Y
;
2093 v
->value_float_4
[2] = ctx
->ViewportArray
[index
].Width
;
2094 v
->value_float_4
[3] = ctx
->ViewportArray
[index
].Height
;
2095 return TYPE_FLOAT_4
;
2097 case GL_DEPTH_RANGE
:
2098 if (index
>= ctx
->Const
.MaxViewports
)
2100 v
->value_double_2
[0] = ctx
->ViewportArray
[index
].Near
;
2101 v
->value_double_2
[1] = ctx
->ViewportArray
[index
].Far
;
2102 return TYPE_DOUBLEN_2
;
2104 case GL_TRANSFORM_FEEDBACK_BUFFER_START
:
2105 if (index
>= ctx
->Const
.MaxTransformFeedbackBuffers
)
2107 if (!ctx
->Extensions
.EXT_transform_feedback
)
2109 v
->value_int64
= ctx
->TransformFeedback
.CurrentObject
->Offset
[index
];
2112 case GL_TRANSFORM_FEEDBACK_BUFFER_SIZE
:
2113 if (index
>= ctx
->Const
.MaxTransformFeedbackBuffers
)
2115 if (!ctx
->Extensions
.EXT_transform_feedback
)
2118 = ctx
->TransformFeedback
.CurrentObject
->RequestedSize
[index
];
2121 case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING
:
2122 if (index
>= ctx
->Const
.MaxTransformFeedbackBuffers
)
2124 if (!ctx
->Extensions
.EXT_transform_feedback
)
2126 v
->value_int
= ctx
->TransformFeedback
.CurrentObject
->BufferNames
[index
];
2129 case GL_UNIFORM_BUFFER_BINDING
:
2130 if (index
>= ctx
->Const
.MaxUniformBufferBindings
)
2132 if (!ctx
->Extensions
.ARB_uniform_buffer_object
)
2134 v
->value_int
= ctx
->UniformBufferBindings
[index
].BufferObject
->Name
;
2137 case GL_UNIFORM_BUFFER_START
:
2138 if (index
>= ctx
->Const
.MaxUniformBufferBindings
)
2140 if (!ctx
->Extensions
.ARB_uniform_buffer_object
)
2142 v
->value_int
= ctx
->UniformBufferBindings
[index
].Offset
< 0 ? 0 :
2143 ctx
->UniformBufferBindings
[index
].Offset
;
2146 case GL_UNIFORM_BUFFER_SIZE
:
2147 if (index
>= ctx
->Const
.MaxUniformBufferBindings
)
2149 if (!ctx
->Extensions
.ARB_uniform_buffer_object
)
2151 v
->value_int
= ctx
->UniformBufferBindings
[index
].Size
< 0 ? 0 :
2152 ctx
->UniformBufferBindings
[index
].Size
;
2155 /* ARB_shader_storage_buffer_object */
2156 case GL_SHADER_STORAGE_BUFFER_BINDING
:
2157 if (!ctx
->Extensions
.ARB_shader_storage_buffer_object
)
2159 if (index
>= ctx
->Const
.MaxShaderStorageBufferBindings
)
2161 v
->value_int
= ctx
->ShaderStorageBufferBindings
[index
].BufferObject
->Name
;
2164 case GL_SHADER_STORAGE_BUFFER_START
:
2165 if (!ctx
->Extensions
.ARB_shader_storage_buffer_object
)
2167 if (index
>= ctx
->Const
.MaxShaderStorageBufferBindings
)
2169 v
->value_int
= ctx
->ShaderStorageBufferBindings
[index
].Offset
< 0 ? 0 :
2170 ctx
->ShaderStorageBufferBindings
[index
].Offset
;
2173 case GL_SHADER_STORAGE_BUFFER_SIZE
:
2174 if (!ctx
->Extensions
.ARB_shader_storage_buffer_object
)
2176 if (index
>= ctx
->Const
.MaxShaderStorageBufferBindings
)
2178 v
->value_int
= ctx
->ShaderStorageBufferBindings
[index
].Size
< 0 ? 0 :
2179 ctx
->ShaderStorageBufferBindings
[index
].Size
;
2182 /* ARB_texture_multisample / GL3.2 */
2183 case GL_SAMPLE_MASK_VALUE
:
2186 if (!ctx
->Extensions
.ARB_texture_multisample
)
2188 v
->value_int
= ctx
->Multisample
.SampleMaskValue
;
2191 case GL_ATOMIC_COUNTER_BUFFER_BINDING
:
2192 if (!ctx
->Extensions
.ARB_shader_atomic_counters
)
2194 if (index
>= ctx
->Const
.MaxAtomicBufferBindings
)
2196 v
->value_int
= ctx
->AtomicBufferBindings
[index
].BufferObject
->Name
;
2199 case GL_ATOMIC_COUNTER_BUFFER_START
:
2200 if (!ctx
->Extensions
.ARB_shader_atomic_counters
)
2202 if (index
>= ctx
->Const
.MaxAtomicBufferBindings
)
2204 v
->value_int64
= ctx
->AtomicBufferBindings
[index
].Offset
;
2207 case GL_ATOMIC_COUNTER_BUFFER_SIZE
:
2208 if (!ctx
->Extensions
.ARB_shader_atomic_counters
)
2210 if (index
>= ctx
->Const
.MaxAtomicBufferBindings
)
2212 v
->value_int64
= ctx
->AtomicBufferBindings
[index
].Size
;
2215 case GL_VERTEX_BINDING_DIVISOR
:
2216 if ((!_mesa_is_desktop_gl(ctx
) || !ctx
->Extensions
.ARB_instanced_arrays
) &&
2217 !_mesa_is_gles31(ctx
))
2219 if (index
>= ctx
->Const
.Program
[MESA_SHADER_VERTEX
].MaxAttribs
)
2221 v
->value_int
= ctx
->Array
.VAO
->BufferBinding
[VERT_ATTRIB_GENERIC(index
)].InstanceDivisor
;
2224 case GL_VERTEX_BINDING_OFFSET
:
2225 if (!_mesa_is_desktop_gl(ctx
) && !_mesa_is_gles31(ctx
))
2227 if (index
>= ctx
->Const
.Program
[MESA_SHADER_VERTEX
].MaxAttribs
)
2229 v
->value_int
= ctx
->Array
.VAO
->BufferBinding
[VERT_ATTRIB_GENERIC(index
)].Offset
;
2232 case GL_VERTEX_BINDING_STRIDE
:
2233 if (!_mesa_is_desktop_gl(ctx
) && !_mesa_is_gles31(ctx
))
2235 if (index
>= ctx
->Const
.Program
[MESA_SHADER_VERTEX
].MaxAttribs
)
2237 v
->value_int
= ctx
->Array
.VAO
->BufferBinding
[VERT_ATTRIB_GENERIC(index
)].Stride
;
2240 case GL_VERTEX_BINDING_BUFFER
:
2241 if (ctx
->API
== API_OPENGLES2
&& ctx
->Version
< 31)
2243 if (index
>= ctx
->Const
.Program
[MESA_SHADER_VERTEX
].MaxAttribs
)
2245 v
->value_int
= ctx
->Array
.VAO
->BufferBinding
[VERT_ATTRIB_GENERIC(index
)].BufferObj
->Name
;
2248 /* ARB_shader_image_load_store */
2249 case GL_IMAGE_BINDING_NAME
: {
2250 struct gl_texture_object
*t
;
2252 if (!ctx
->Extensions
.ARB_shader_image_load_store
)
2254 if (index
>= ctx
->Const
.MaxImageUnits
)
2257 t
= ctx
->ImageUnits
[index
].TexObj
;
2258 v
->value_int
= (t
? t
->Name
: 0);
2262 case GL_IMAGE_BINDING_LEVEL
:
2263 if (!ctx
->Extensions
.ARB_shader_image_load_store
)
2265 if (index
>= ctx
->Const
.MaxImageUnits
)
2268 v
->value_int
= ctx
->ImageUnits
[index
].Level
;
2271 case GL_IMAGE_BINDING_LAYERED
:
2272 if (!ctx
->Extensions
.ARB_shader_image_load_store
)
2274 if (index
>= ctx
->Const
.MaxImageUnits
)
2277 v
->value_int
= ctx
->ImageUnits
[index
].Layered
;
2280 case GL_IMAGE_BINDING_LAYER
:
2281 if (!ctx
->Extensions
.ARB_shader_image_load_store
)
2283 if (index
>= ctx
->Const
.MaxImageUnits
)
2286 v
->value_int
= ctx
->ImageUnits
[index
].Layer
;
2289 case GL_IMAGE_BINDING_ACCESS
:
2290 if (!ctx
->Extensions
.ARB_shader_image_load_store
)
2292 if (index
>= ctx
->Const
.MaxImageUnits
)
2295 v
->value_int
= ctx
->ImageUnits
[index
].Access
;
2298 case GL_IMAGE_BINDING_FORMAT
:
2299 if (!ctx
->Extensions
.ARB_shader_image_load_store
)
2301 if (index
>= ctx
->Const
.MaxImageUnits
)
2304 v
->value_int
= ctx
->ImageUnits
[index
].Format
;
2307 /* ARB_direct_state_access */
2308 case GL_TEXTURE_BINDING_1D
:
2309 case GL_TEXTURE_BINDING_1D_ARRAY
:
2310 case GL_TEXTURE_BINDING_2D
:
2311 case GL_TEXTURE_BINDING_2D_ARRAY
:
2312 case GL_TEXTURE_BINDING_2D_MULTISAMPLE
:
2313 case GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY
:
2314 case GL_TEXTURE_BINDING_3D
:
2315 case GL_TEXTURE_BINDING_BUFFER
:
2316 case GL_TEXTURE_BINDING_CUBE_MAP
:
2317 case GL_TEXTURE_BINDING_CUBE_MAP_ARRAY
:
2318 case GL_TEXTURE_BINDING_RECTANGLE
: {
2321 if (ctx
->API
!= API_OPENGL_CORE
)
2323 target
= tex_binding_to_index(ctx
, pname
);
2326 if (index
>= _mesa_max_tex_unit(ctx
))
2329 v
->value_int
= ctx
->Texture
.Unit
[index
].CurrentTex
[target
]->Name
;
2333 case GL_SAMPLER_BINDING
: {
2334 struct gl_sampler_object
*samp
;
2336 if (ctx
->API
!= API_OPENGL_CORE
)
2338 if (index
>= _mesa_max_tex_unit(ctx
))
2341 samp
= ctx
->Texture
.Unit
[index
].Sampler
;
2342 v
->value_int
= samp
? samp
->Name
: 0;
2346 case GL_MAX_COMPUTE_WORK_GROUP_COUNT
:
2347 if (!_mesa_has_compute_shaders(ctx
))
2351 v
->value_int
= ctx
->Const
.MaxComputeWorkGroupCount
[index
];
2354 case GL_MAX_COMPUTE_WORK_GROUP_SIZE
:
2355 if (!_mesa_has_compute_shaders(ctx
))
2359 v
->value_int
= ctx
->Const
.MaxComputeWorkGroupSize
[index
];
2362 /* ARB_compute_variable_group_size */
2363 case GL_MAX_COMPUTE_VARIABLE_GROUP_SIZE_ARB
:
2364 if (!ctx
->Extensions
.ARB_compute_variable_group_size
)
2368 v
->value_int
= ctx
->Const
.MaxComputeVariableGroupSize
[index
];
2373 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=%s)", func
,
2374 _mesa_enum_to_string(pname
));
2375 return TYPE_INVALID
;
2377 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(pname=%s)", func
,
2378 _mesa_enum_to_string(pname
));
2379 return TYPE_INVALID
;
2383 _mesa_GetBooleani_v( GLenum pname
, GLuint index
, GLboolean
*params
)
2386 enum value_type type
=
2387 find_value_indexed("glGetBooleani_v", pname
, index
, &v
);
2392 params
[0] = INT_TO_BOOLEAN(v
.value_int
);
2396 params
[0] = INT_TO_BOOLEAN(v
.value_int_4
[0]);
2397 params
[1] = INT_TO_BOOLEAN(v
.value_int_4
[1]);
2398 params
[2] = INT_TO_BOOLEAN(v
.value_int_4
[2]);
2399 params
[3] = INT_TO_BOOLEAN(v
.value_int_4
[3]);
2402 params
[0] = INT64_TO_BOOLEAN(v
.value_int64
);
2405 ; /* nothing - GL error was recorded */
2410 _mesa_GetIntegeri_v( GLenum pname
, GLuint index
, GLint
*params
)
2413 enum value_type type
=
2414 find_value_indexed("glGetIntegeri_v", pname
, index
, &v
);
2419 params
[3] = IROUND(v
.value_float_4
[3]);
2422 params
[2] = IROUND(v
.value_float_4
[2]);
2425 params
[1] = IROUND(v
.value_float_4
[1]);
2428 params
[0] = IROUND(v
.value_float_4
[0]);
2431 case TYPE_DOUBLEN_2
:
2432 params
[1] = IROUND(v
.value_double_2
[1]);
2434 params
[0] = IROUND(v
.value_double_2
[0]);
2439 params
[0] = v
.value_int
;
2443 params
[0] = v
.value_int_4
[0];
2444 params
[1] = v
.value_int_4
[1];
2445 params
[2] = v
.value_int_4
[2];
2446 params
[3] = v
.value_int_4
[3];
2449 params
[0] = INT64_TO_INT(v
.value_int64
);
2452 ; /* nothing - GL error was recorded */
2457 _mesa_GetInteger64i_v( GLenum pname
, GLuint index
, GLint64
*params
)
2460 enum value_type type
=
2461 find_value_indexed("glGetInteger64i_v", pname
, index
, &v
);
2465 params
[0] = v
.value_int
;
2468 params
[0] = v
.value_int_4
[0];
2469 params
[1] = v
.value_int_4
[1];
2470 params
[2] = v
.value_int_4
[2];
2471 params
[3] = v
.value_int_4
[3];
2474 params
[0] = (GLuint
) v
.value_int
;
2477 params
[0] = (GLuint
) v
.value_int_4
[0];
2478 params
[1] = (GLuint
) v
.value_int_4
[1];
2479 params
[2] = (GLuint
) v
.value_int_4
[2];
2480 params
[3] = (GLuint
) v
.value_int_4
[3];
2483 params
[0] = v
.value_int64
;
2486 ; /* nothing - GL error was recorded */
2491 _mesa_GetFloati_v(GLenum pname
, GLuint index
, GLfloat
*params
)
2496 enum value_type type
=
2497 find_value_indexed("glGetFloati_v", pname
, index
, &v
);
2502 params
[3] = v
.value_float_4
[3];
2505 params
[2] = v
.value_float_4
[2];
2508 params
[1] = v
.value_float_4
[1];
2511 params
[0] = v
.value_float_4
[0];
2514 case TYPE_DOUBLEN_2
:
2515 params
[1] = (GLfloat
) v
.value_double_2
[1];
2517 params
[0] = (GLfloat
) v
.value_double_2
[0];
2521 params
[3] = (GLfloat
) v
.value_int_4
[3];
2523 params
[2] = (GLfloat
) v
.value_int_4
[2];
2526 params
[1] = (GLfloat
) v
.value_int_4
[1];
2529 params
[0] = (GLfloat
) v
.value_int_4
[0];
2533 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
2534 params
[i
] = (GLfloat
) v
.value_int_n
.ints
[i
];
2538 params
[3] = (GLfloat
) ((GLuint
) v
.value_int_4
[3]);
2540 params
[2] = (GLfloat
) ((GLuint
) v
.value_int_4
[2]);
2542 params
[1] = (GLfloat
) ((GLuint
) v
.value_int_4
[1]);
2544 params
[0] = (GLfloat
) ((GLuint
) v
.value_int_4
[0]);
2548 params
[0] = (GLfloat
) v
.value_int64
;
2552 params
[0] = BOOLEAN_TO_FLOAT(v
.value_bool
);
2556 m
= *(GLmatrix
**) &v
;
2557 for (i
= 0; i
< 16; i
++)
2558 params
[i
] = m
->m
[i
];
2562 m
= *(GLmatrix
**) &v
;
2563 for (i
= 0; i
< 16; i
++)
2564 params
[i
] = m
->m
[transpose
[i
]];
2573 _mesa_GetDoublei_v(GLenum pname
, GLuint index
, GLdouble
*params
)
2578 enum value_type type
=
2579 find_value_indexed("glGetDoublei_v", pname
, index
, &v
);
2584 params
[3] = (GLdouble
) v
.value_float_4
[3];
2587 params
[2] = (GLdouble
) v
.value_float_4
[2];
2590 params
[1] = (GLdouble
) v
.value_float_4
[1];
2593 params
[0] = (GLdouble
) v
.value_float_4
[0];
2596 case TYPE_DOUBLEN_2
:
2597 params
[1] = v
.value_double_2
[1];
2599 params
[0] = v
.value_double_2
[0];
2603 params
[3] = (GLdouble
) v
.value_int_4
[3];
2605 params
[2] = (GLdouble
) v
.value_int_4
[2];
2608 params
[1] = (GLdouble
) v
.value_int_4
[1];
2611 params
[0] = (GLdouble
) v
.value_int_4
[0];
2615 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
2616 params
[i
] = (GLdouble
) v
.value_int_n
.ints
[i
];
2620 params
[3] = (GLdouble
) ((GLuint
) v
.value_int_4
[3]);
2622 params
[2] = (GLdouble
) ((GLuint
) v
.value_int_4
[2]);
2624 params
[1] = (GLdouble
) ((GLuint
) v
.value_int_4
[1]);
2626 params
[0] = (GLdouble
) ((GLuint
) v
.value_int_4
[0]);
2630 params
[0] = (GLdouble
) v
.value_int64
;
2634 params
[0] = (GLdouble
) BOOLEAN_TO_FLOAT(v
.value_bool
);
2638 m
= *(GLmatrix
**) &v
;
2639 for (i
= 0; i
< 16; i
++)
2640 params
[i
] = (GLdouble
) m
->m
[i
];
2644 m
= *(GLmatrix
**) &v
;
2645 for (i
= 0; i
< 16; i
++)
2646 params
[i
] = (GLdouble
) m
->m
[transpose
[i
]];
2655 _mesa_GetFixedv(GLenum pname
, GLfixed
*params
)
2657 const struct value_desc
*d
;
2663 d
= find_value("glGetDoublev", pname
, &p
, &v
);
2668 params
[0] = INT_TO_FIXED(d
->offset
);
2673 params
[3] = FLOAT_TO_FIXED(((GLfloat
*) p
)[3]);
2676 params
[2] = FLOAT_TO_FIXED(((GLfloat
*) p
)[2]);
2679 params
[1] = FLOAT_TO_FIXED(((GLfloat
*) p
)[1]);
2682 params
[0] = FLOAT_TO_FIXED(((GLfloat
*) p
)[0]);
2685 case TYPE_DOUBLEN_2
:
2686 params
[1] = FLOAT_TO_FIXED(((GLdouble
*) p
)[1]);
2688 params
[0] = FLOAT_TO_FIXED(((GLdouble
*) p
)[0]);
2693 params
[3] = INT_TO_FIXED(((GLint
*) p
)[3]);
2696 params
[2] = INT_TO_FIXED(((GLint
*) p
)[2]);
2700 params
[1] = INT_TO_FIXED(((GLint
*) p
)[1]);
2704 params
[0] = INT_TO_FIXED(((GLint
*) p
)[0]);
2708 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
2709 params
[i
] = INT_TO_FIXED(v
.value_int_n
.ints
[i
]);
2713 params
[0] = ((GLint64
*) p
)[0];
2717 params
[0] = BOOLEAN_TO_FIXED(((GLboolean
*) p
)[0]);
2721 m
= *(GLmatrix
**) p
;
2722 for (i
= 0; i
< 16; i
++)
2723 params
[i
] = FLOAT_TO_FIXED(m
->m
[i
]);
2727 m
= *(GLmatrix
**) p
;
2728 for (i
= 0; i
< 16; i
++)
2729 params
[i
] = FLOAT_TO_FIXED(m
->m
[transpose
[i
]]);
2740 shift
= d
->type
- TYPE_BIT_0
;
2741 params
[0] = BOOLEAN_TO_FIXED((*(GLbitfield
*) p
>> shift
) & 1);