2 * Copyright (C) 2010 Brian Paul All Rights Reserved.
3 * Copyright (C) 2010 Intel Corporation
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
12 * The above copyright notice and this permission notice shall be included
13 * in all copies or substantial portions of the Software.
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
16 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
19 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
20 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
21 * OTHER DEALINGS IN THE SOFTWARE.
23 * Author: Kristian Høgsberg <krh@bitplanet.net>
29 #include "debug_output.h"
33 #include "extensions.h"
38 #include "texcompress.h"
40 #include "framebuffer.h"
41 #include "samplerobj.h"
44 /* This is a table driven implemetation of the glGet*v() functions.
45 * The basic idea is that most getters just look up an int somewhere
46 * in struct gl_context and then convert it to a bool or float according to
47 * which of glGetIntegerv() glGetBooleanv() etc is being called.
48 * Instead of generating code to do this, we can just record the enum
49 * value and the offset into struct gl_context in an array of structs. Then
50 * in glGet*(), we lookup the struct for the enum in question, and use
51 * the offset to get the int we need.
53 * Sometimes we need to look up a float, a boolean, a bit in a
54 * bitfield, a matrix or other types instead, so we need to track the
55 * type of the value in struct gl_context. And sometimes the value isn't in
56 * struct gl_context but in the drawbuffer, the array object, current texture
57 * unit, or maybe it's a computed value. So we need to also track
58 * where or how to find the value. Finally, we sometimes need to
59 * check that one of a number of extensions are enabled, the GL
60 * version or flush or call _mesa_update_state(). This is done by
61 * attaching optional extra information to the value description
62 * struct, it's sort of like an array of opcodes that describe extra
65 * Putting all this together we end up with struct value_desc below,
66 * and with a couple of macros to help, the table of struct value_desc
67 * is about as concise as the specification in the old python script.
70 #define FLOAT_TO_BOOLEAN(X) ( (X) ? GL_TRUE : GL_FALSE )
71 #define FLOAT_TO_FIXED(F) ( ((F) * 65536.0f > INT_MAX) ? INT_MAX : \
72 ((F) * 65536.0f < INT_MIN) ? INT_MIN : \
73 (GLint) ((F) * 65536.0f) )
75 #define INT_TO_BOOLEAN(I) ( (I) ? GL_TRUE : GL_FALSE )
76 #define INT_TO_FIXED(I) ( ((I) > SHRT_MAX) ? INT_MAX : \
77 ((I) < SHRT_MIN) ? INT_MIN : \
78 (GLint) ((I) * 65536) )
80 #define INT64_TO_BOOLEAN(I) ( (I) ? GL_TRUE : GL_FALSE )
81 #define INT64_TO_INT(I) ( (GLint)((I > INT_MAX) ? INT_MAX : ((I < INT_MIN) ? INT_MIN : (I))) )
83 #define BOOLEAN_TO_INT(B) ( (GLint) (B) )
84 #define BOOLEAN_TO_INT64(B) ( (GLint64) (B) )
85 #define BOOLEAN_TO_FLOAT(B) ( (B) ? 1.0F : 0.0F )
86 #define BOOLEAN_TO_FIXED(B) ( (GLint) ((B) ? 1 : 0) << 16 )
88 #define ENUM_TO_INT64(E) ( (GLint64) (E) )
89 #define ENUM_TO_FIXED(E) (E)
130 enum value_location
{
151 EXTRA_NEW_FRAG_CLAMP
,
152 EXTRA_VALID_DRAW_BUFFER
,
153 EXTRA_VALID_TEXTURE_UNIT
,
154 EXTRA_VALID_CLIP_DISTANCE
,
158 EXTRA_EXT_ATOMICS_GS
,
159 EXTRA_EXT_SHADER_IMAGE_GS
,
160 EXTRA_EXT_ATOMICS_TESS
,
161 EXTRA_EXT_SHADER_IMAGE_TESS
,
163 EXTRA_EXT_FB_NO_ATTACH_GS
,
167 #define NO_EXTRA NULL
172 GLubyte location
; /**< enum value_location */
173 GLubyte type
; /**< enum value_type */
180 GLfloat value_float_4
[4];
181 GLdouble value_double_2
[2];
182 GLmatrix
*value_matrix
;
184 GLint value_int_4
[4];
188 /* Sigh, see GL_COMPRESSED_TEXTURE_FORMATS_ARB handling */
192 GLboolean value_bool
;
195 #define BUFFER_FIELD(field, type) \
196 LOC_BUFFER, type, offsetof(struct gl_framebuffer, field)
197 #define CONTEXT_FIELD(field, type) \
198 LOC_CONTEXT, type, offsetof(struct gl_context, field)
199 #define ARRAY_FIELD(field, type) \
200 LOC_ARRAY, type, offsetof(struct gl_vertex_array_object, field)
201 #undef CONST /* already defined through windows.h */
202 #define CONST(value) \
203 LOC_CONTEXT, TYPE_CONST, value
205 #define BUFFER_INT(field) BUFFER_FIELD(field, TYPE_INT)
206 #define BUFFER_ENUM(field) BUFFER_FIELD(field, TYPE_ENUM)
207 #define BUFFER_BOOL(field) BUFFER_FIELD(field, TYPE_BOOLEAN)
209 #define CONTEXT_INT(field) CONTEXT_FIELD(field, TYPE_INT)
210 #define CONTEXT_INT2(field) CONTEXT_FIELD(field, TYPE_INT_2)
211 #define CONTEXT_INT64(field) CONTEXT_FIELD(field, TYPE_INT64)
212 #define CONTEXT_UINT(field) CONTEXT_FIELD(field, TYPE_UINT)
213 #define CONTEXT_ENUM(field) CONTEXT_FIELD(field, TYPE_ENUM)
214 #define CONTEXT_ENUM2(field) CONTEXT_FIELD(field, TYPE_ENUM_2)
215 #define CONTEXT_BOOL(field) CONTEXT_FIELD(field, TYPE_BOOLEAN)
216 #define CONTEXT_BIT0(field) CONTEXT_FIELD(field, TYPE_BIT_0)
217 #define CONTEXT_BIT1(field) CONTEXT_FIELD(field, TYPE_BIT_1)
218 #define CONTEXT_BIT2(field) CONTEXT_FIELD(field, TYPE_BIT_2)
219 #define CONTEXT_BIT3(field) CONTEXT_FIELD(field, TYPE_BIT_3)
220 #define CONTEXT_BIT4(field) CONTEXT_FIELD(field, TYPE_BIT_4)
221 #define CONTEXT_BIT5(field) CONTEXT_FIELD(field, TYPE_BIT_5)
222 #define CONTEXT_BIT6(field) CONTEXT_FIELD(field, TYPE_BIT_6)
223 #define CONTEXT_BIT7(field) CONTEXT_FIELD(field, TYPE_BIT_7)
224 #define CONTEXT_FLOAT(field) CONTEXT_FIELD(field, TYPE_FLOAT)
225 #define CONTEXT_FLOAT2(field) CONTEXT_FIELD(field, TYPE_FLOAT_2)
226 #define CONTEXT_FLOAT3(field) CONTEXT_FIELD(field, TYPE_FLOAT_3)
227 #define CONTEXT_FLOAT4(field) CONTEXT_FIELD(field, TYPE_FLOAT_4)
228 #define CONTEXT_FLOAT8(field) CONTEXT_FIELD(field, TYPE_FLOAT_8)
229 #define CONTEXT_MATRIX(field) CONTEXT_FIELD(field, TYPE_MATRIX)
230 #define CONTEXT_MATRIX_T(field) CONTEXT_FIELD(field, TYPE_MATRIX_T)
232 #define ARRAY_INT(field) ARRAY_FIELD(field, TYPE_INT)
233 #define ARRAY_ENUM(field) ARRAY_FIELD(field, TYPE_ENUM)
234 #define ARRAY_BOOL(field) ARRAY_FIELD(field, TYPE_BOOLEAN)
237 offsetof(struct gl_extensions, f)
239 #define EXTRA_EXT(e) \
240 static const int extra_##e[] = { \
244 #define EXTRA_EXT2(e1, e2) \
245 static const int extra_##e1##_##e2[] = { \
246 EXT(e1), EXT(e2), EXTRA_END \
249 /* The 'extra' mechanism is a way to specify extra checks (such as
250 * extensions or specific gl versions) or actions (flush current, new
251 * buffers) that we need to do before looking up an enum. We need to
252 * declare them all up front so we can refer to them in the value_desc
255 * Each EXTRA_ will be executed. For EXTRA_* enums of extensions and API
256 * versions, listing multiple ones in an array means an error will be thrown
257 * only if none of them are available. If you need to check for "AND"
258 * behavior, you would need to make a custom EXTRA_ enum.
261 static const int extra_new_buffers
[] = {
266 static const int extra_new_frag_clamp
[] = {
267 EXTRA_NEW_FRAG_CLAMP
,
271 static const int extra_valid_draw_buffer
[] = {
272 EXTRA_VALID_DRAW_BUFFER
,
276 static const int extra_valid_texture_unit
[] = {
277 EXTRA_VALID_TEXTURE_UNIT
,
281 static const int extra_valid_clip_distance
[] = {
282 EXTRA_VALID_CLIP_DISTANCE
,
286 static const int extra_flush_current_valid_texture_unit
[] = {
288 EXTRA_VALID_TEXTURE_UNIT
,
292 static const int extra_flush_current
[] = {
297 static const int extra_EXT_texture_integer_and_new_buffers
[] = {
298 EXT(EXT_texture_integer
),
303 static const int extra_GLSL_130_es3
[] = {
309 static const int extra_texture_buffer_object
[] = {
312 EXT(ARB_texture_buffer_object
),
316 static const int extra_ARB_transform_feedback2_api_es3
[] = {
317 EXT(ARB_transform_feedback2
),
322 static const int extra_ARB_uniform_buffer_object_and_geometry_shader
[] = {
327 static const int extra_ARB_ES2_compatibility_api_es2
[] = {
328 EXT(ARB_ES2_compatibility
),
333 static const int extra_ARB_ES3_compatibility_api_es3
[] = {
334 EXT(ARB_ES3_compatibility
),
339 static const int extra_EXT_framebuffer_sRGB_and_new_buffers
[] = {
340 EXT(EXT_framebuffer_sRGB
),
345 static const int extra_EXT_packed_float
[] = {
346 EXT(EXT_packed_float
),
351 static const int extra_EXT_texture_array_es3
[] = {
352 EXT(EXT_texture_array
),
357 static const int extra_ARB_shader_atomic_counters_and_geometry_shader
[] = {
358 EXTRA_EXT_ATOMICS_GS
,
362 static const int extra_ARB_shader_image_load_store_and_geometry_shader
[] = {
363 EXTRA_EXT_SHADER_IMAGE_GS
,
367 static const int extra_ARB_shader_atomic_counters_and_tessellation
[] = {
368 EXTRA_EXT_ATOMICS_TESS
,
372 static const int extra_ARB_shader_image_load_store_and_tessellation
[] = {
373 EXTRA_EXT_SHADER_IMAGE_TESS
,
377 /* HACK: remove when ARB_compute_shader is actually supported */
378 static const int extra_ARB_compute_shader_es31
[] = {
379 EXT(ARB_compute_shader
),
384 static const int extra_ARB_shader_storage_buffer_object_es31
[] = {
385 EXT(ARB_shader_storage_buffer_object
),
390 static const int extra_ARB_shader_storage_buffer_object_and_geometry_shader
[] = {
395 static const int extra_ARB_shader_image_load_store_shader_storage_buffer_object_es31
[] = {
396 EXT(ARB_shader_image_load_store
),
397 EXT(ARB_shader_storage_buffer_object
),
402 static const int extra_ARB_framebuffer_no_attachments_and_geometry_shader
[] = {
403 EXTRA_EXT_FB_NO_ATTACH_GS
,
407 static const int extra_ARB_viewport_array_or_oes_geometry_shader
[] = {
408 EXT(ARB_viewport_array
),
413 static const int extra_ARB_viewport_array_or_oes_viewport_array
[] = {
414 EXT(ARB_viewport_array
),
415 EXT(OES_viewport_array
),
419 static const int extra_ARB_gpu_shader5_or_oes_geometry_shader
[] = {
420 EXT(ARB_gpu_shader5
),
425 static const int extra_ARB_gpu_shader5_or_OES_sample_variables
[] = {
426 EXT(ARB_gpu_shader5
),
427 EXT(OES_sample_variables
),
431 static const int extra_ES32
[] = {
432 EXT(ARB_ES3_2_compatibility
),
437 static const int extra_KHR_robustness_or_GL
[] = {
444 static const int extra_INTEL_conservative_rasterization
[] = {
445 EXT(INTEL_conservative_rasterization
),
449 EXTRA_EXT(ARB_texture_cube_map
);
450 EXTRA_EXT(EXT_texture_array
);
451 EXTRA_EXT(NV_fog_distance
);
452 EXTRA_EXT(EXT_texture_filter_anisotropic
);
453 EXTRA_EXT(NV_point_sprite
);
454 EXTRA_EXT(NV_texture_rectangle
);
455 EXTRA_EXT(EXT_stencil_two_side
);
456 EXTRA_EXT(EXT_depth_bounds_test
);
457 EXTRA_EXT(ARB_depth_clamp
);
458 EXTRA_EXT(ATI_fragment_shader
);
459 EXTRA_EXT(EXT_provoking_vertex
);
460 EXTRA_EXT(ARB_fragment_shader
);
461 EXTRA_EXT(ARB_fragment_program
);
462 EXTRA_EXT2(ARB_framebuffer_object
, EXT_framebuffer_multisample
);
463 EXTRA_EXT(ARB_seamless_cube_map
);
465 EXTRA_EXT(ARB_vertex_shader
);
466 EXTRA_EXT(EXT_transform_feedback
);
467 EXTRA_EXT(ARB_transform_feedback3
);
468 EXTRA_EXT(EXT_pixel_buffer_object
);
469 EXTRA_EXT(ARB_vertex_program
);
470 EXTRA_EXT2(NV_point_sprite
, ARB_point_sprite
);
471 EXTRA_EXT2(ARB_vertex_program
, ARB_fragment_program
);
472 EXTRA_EXT(ARB_color_buffer_float
);
473 EXTRA_EXT(EXT_framebuffer_sRGB
);
474 EXTRA_EXT(OES_EGL_image_external
);
475 EXTRA_EXT(ARB_blend_func_extended
);
476 EXTRA_EXT(ARB_uniform_buffer_object
);
477 EXTRA_EXT(ARB_timer_query
);
478 EXTRA_EXT2(ARB_texture_cube_map_array
, OES_texture_cube_map_array
);
479 EXTRA_EXT(ARB_texture_buffer_range
);
480 EXTRA_EXT(ARB_texture_multisample
);
481 EXTRA_EXT(ARB_texture_gather
);
482 EXTRA_EXT(ARB_shader_atomic_counters
);
483 EXTRA_EXT(ARB_draw_indirect
);
484 EXTRA_EXT(ARB_shader_image_load_store
);
485 EXTRA_EXT(ARB_query_buffer_object
);
486 EXTRA_EXT2(ARB_transform_feedback3
, ARB_gpu_shader5
);
487 EXTRA_EXT(INTEL_performance_query
);
488 EXTRA_EXT(ARB_explicit_uniform_location
);
489 EXTRA_EXT(ARB_clip_control
);
490 EXTRA_EXT(EXT_polygon_offset_clamp
);
491 EXTRA_EXT(ARB_framebuffer_no_attachments
);
492 EXTRA_EXT(ARB_tessellation_shader
);
493 EXTRA_EXT(ARB_shader_subroutine
);
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 /* This is the big table describing all the enums we accept in
578 * glGet*v(). The table is partitioned into six parts: enums
579 * understood by all GL APIs (OpenGL, GLES and GLES2), enums shared
580 * between OpenGL and GLES, enums exclusive to GLES, etc for the
581 * remaining combinations. To look up the enums valid in a given API
582 * we will use a hash table specific to that API. These tables are in
583 * turn generated at build time and included through get_hash.h.
586 #include "get_hash.h"
588 /* All we need now is a way to look up the value struct from the enum.
589 * The code generated by gcc for the old generated big switch
590 * statement is a big, balanced, open coded if/else tree, essentially
591 * an unrolled binary search. It would be natural to sort the new
592 * enum table and use bsearch(), but we will use a read-only hash
593 * table instead. bsearch() has a nice guaranteed worst case
594 * performance, but we're also guaranteed to hit that worst case
595 * (log2(n) iterations) for about half the enums. Instead, using an
596 * open addressing hash table, we can find the enum on the first try
597 * for 80% of the enums, 1 collision for 10% and never more than 5
598 * collisions for any enum (typical numbers). And the code is very
599 * simple, even though it feels a little magic. */
602 * Handle irregular enums
604 * Some values don't conform to the "well-known type at context
605 * pointer + offset" pattern, so we have this function to catch all
606 * the corner cases. Typically, it's a computed value or a one-off
607 * pointer to a custom struct or something.
609 * In this case we can't return a pointer to the value, so we'll have
610 * to use the temporary variable 'v' declared back in the calling
611 * glGet*v() function to store the result.
613 * \param ctx the current context
614 * \param d the struct value_desc that describes the enum
615 * \param v pointer to the tmp declared in the calling glGet*v() function
618 find_custom_value(struct gl_context
*ctx
, const struct value_desc
*d
, union value
*v
)
620 struct gl_buffer_object
**buffer_obj
;
621 struct gl_array_attributes
*array
;
625 case GL_MAJOR_VERSION
:
626 v
->value_int
= ctx
->Version
/ 10;
628 case GL_MINOR_VERSION
:
629 v
->value_int
= ctx
->Version
% 10;
635 case GL_TEXTURE_CUBE_MAP
:
636 case GL_TEXTURE_RECTANGLE_NV
:
637 case GL_TEXTURE_EXTERNAL_OES
:
638 v
->value_bool
= _mesa_IsEnabled(d
->pname
);
641 case GL_LINE_STIPPLE_PATTERN
:
642 /* This is the only GLushort, special case it here by promoting
643 * to an int rather than introducing a new type. */
644 v
->value_int
= ctx
->Line
.StipplePattern
;
647 case GL_CURRENT_RASTER_TEXTURE_COORDS
:
648 unit
= ctx
->Texture
.CurrentUnit
;
649 v
->value_float_4
[0] = ctx
->Current
.RasterTexCoords
[unit
][0];
650 v
->value_float_4
[1] = ctx
->Current
.RasterTexCoords
[unit
][1];
651 v
->value_float_4
[2] = ctx
->Current
.RasterTexCoords
[unit
][2];
652 v
->value_float_4
[3] = ctx
->Current
.RasterTexCoords
[unit
][3];
655 case GL_CURRENT_TEXTURE_COORDS
:
656 unit
= ctx
->Texture
.CurrentUnit
;
657 v
->value_float_4
[0] = ctx
->Current
.Attrib
[VERT_ATTRIB_TEX0
+ unit
][0];
658 v
->value_float_4
[1] = ctx
->Current
.Attrib
[VERT_ATTRIB_TEX0
+ unit
][1];
659 v
->value_float_4
[2] = ctx
->Current
.Attrib
[VERT_ATTRIB_TEX0
+ unit
][2];
660 v
->value_float_4
[3] = ctx
->Current
.Attrib
[VERT_ATTRIB_TEX0
+ unit
][3];
663 case GL_COLOR_WRITEMASK
:
664 v
->value_int_4
[0] = ctx
->Color
.ColorMask
[0][RCOMP
] ? 1 : 0;
665 v
->value_int_4
[1] = ctx
->Color
.ColorMask
[0][GCOMP
] ? 1 : 0;
666 v
->value_int_4
[2] = ctx
->Color
.ColorMask
[0][BCOMP
] ? 1 : 0;
667 v
->value_int_4
[3] = ctx
->Color
.ColorMask
[0][ACOMP
] ? 1 : 0;
671 v
->value_bool
= ctx
->Current
.Attrib
[VERT_ATTRIB_EDGEFLAG
][0] == 1.0F
;
675 v
->value_enum
= ctx
->ReadBuffer
->ColorReadBuffer
;
678 case GL_MAP2_GRID_DOMAIN
:
679 v
->value_float_4
[0] = ctx
->Eval
.MapGrid2u1
;
680 v
->value_float_4
[1] = ctx
->Eval
.MapGrid2u2
;
681 v
->value_float_4
[2] = ctx
->Eval
.MapGrid2v1
;
682 v
->value_float_4
[3] = ctx
->Eval
.MapGrid2v2
;
685 case GL_TEXTURE_STACK_DEPTH
:
686 unit
= ctx
->Texture
.CurrentUnit
;
687 v
->value_int
= ctx
->TextureMatrixStack
[unit
].Depth
+ 1;
689 case GL_TEXTURE_MATRIX
:
690 unit
= ctx
->Texture
.CurrentUnit
;
691 v
->value_matrix
= ctx
->TextureMatrixStack
[unit
].Top
;
694 case GL_TEXTURE_COORD_ARRAY
:
695 case GL_TEXTURE_COORD_ARRAY_SIZE
:
696 case GL_TEXTURE_COORD_ARRAY_TYPE
:
697 case GL_TEXTURE_COORD_ARRAY_STRIDE
:
698 array
= &ctx
->Array
.VAO
->VertexAttrib
[VERT_ATTRIB_TEX(ctx
->Array
.ActiveTexture
)];
699 v
->value_int
= *(GLuint
*) ((char *) array
+ d
->offset
);
702 case GL_ACTIVE_TEXTURE_ARB
:
703 v
->value_int
= GL_TEXTURE0_ARB
+ ctx
->Texture
.CurrentUnit
;
705 case GL_CLIENT_ACTIVE_TEXTURE_ARB
:
706 v
->value_int
= GL_TEXTURE0_ARB
+ ctx
->Array
.ActiveTexture
;
709 case GL_MODELVIEW_STACK_DEPTH
:
710 case GL_PROJECTION_STACK_DEPTH
:
711 v
->value_int
= *(GLint
*) ((char *) ctx
+ d
->offset
) + 1;
714 case GL_MAX_TEXTURE_SIZE
:
715 case GL_MAX_3D_TEXTURE_SIZE
:
716 case GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB
:
717 p
= (GLuint
*) ((char *) ctx
+ d
->offset
);
718 v
->value_int
= 1 << (*p
- 1);
722 v
->value_int_4
[0] = ctx
->Scissor
.ScissorArray
[0].X
;
723 v
->value_int_4
[1] = ctx
->Scissor
.ScissorArray
[0].Y
;
724 v
->value_int_4
[2] = ctx
->Scissor
.ScissorArray
[0].Width
;
725 v
->value_int_4
[3] = ctx
->Scissor
.ScissorArray
[0].Height
;
728 case GL_SCISSOR_TEST
:
729 v
->value_bool
= ctx
->Scissor
.EnableFlags
& 1;
734 ctx
->ListState
.CurrentList
? ctx
->ListState
.CurrentList
->Name
: 0;
737 if (!ctx
->CompileFlag
)
739 else if (ctx
->ExecuteFlag
)
740 v
->value_enum
= GL_COMPILE_AND_EXECUTE
;
742 v
->value_enum
= GL_COMPILE
;
746 v
->value_float_4
[0] = ctx
->ViewportArray
[0].X
;
747 v
->value_float_4
[1] = ctx
->ViewportArray
[0].Y
;
748 v
->value_float_4
[2] = ctx
->ViewportArray
[0].Width
;
749 v
->value_float_4
[3] = ctx
->ViewportArray
[0].Height
;
753 v
->value_double_2
[0] = ctx
->ViewportArray
[0].Near
;
754 v
->value_double_2
[1] = ctx
->ViewportArray
[0].Far
;
757 case GL_ACTIVE_STENCIL_FACE_EXT
:
758 v
->value_enum
= ctx
->Stencil
.ActiveFace
? GL_BACK
: GL_FRONT
;
761 case GL_STENCIL_FAIL
:
762 v
->value_enum
= ctx
->Stencil
.FailFunc
[ctx
->Stencil
.ActiveFace
];
764 case GL_STENCIL_FUNC
:
765 v
->value_enum
= ctx
->Stencil
.Function
[ctx
->Stencil
.ActiveFace
];
767 case GL_STENCIL_PASS_DEPTH_FAIL
:
768 v
->value_enum
= ctx
->Stencil
.ZFailFunc
[ctx
->Stencil
.ActiveFace
];
770 case GL_STENCIL_PASS_DEPTH_PASS
:
771 v
->value_enum
= ctx
->Stencil
.ZPassFunc
[ctx
->Stencil
.ActiveFace
];
774 v
->value_int
= _mesa_get_stencil_ref(ctx
, ctx
->Stencil
.ActiveFace
);
776 case GL_STENCIL_BACK_REF
:
777 v
->value_int
= _mesa_get_stencil_ref(ctx
, 1);
779 case GL_STENCIL_VALUE_MASK
:
780 v
->value_int
= ctx
->Stencil
.ValueMask
[ctx
->Stencil
.ActiveFace
];
782 case GL_STENCIL_WRITEMASK
:
783 v
->value_int
= ctx
->Stencil
.WriteMask
[ctx
->Stencil
.ActiveFace
];
786 case GL_NUM_EXTENSIONS
:
787 v
->value_int
= _mesa_get_extension_count(ctx
);
790 case GL_IMPLEMENTATION_COLOR_READ_TYPE_OES
:
791 v
->value_int
= _mesa_get_color_read_type(ctx
, NULL
, "glGetIntegerv");
793 case GL_IMPLEMENTATION_COLOR_READ_FORMAT_OES
:
794 v
->value_int
= _mesa_get_color_read_format(ctx
, NULL
, "glGetIntegerv");
797 case GL_CURRENT_MATRIX_STACK_DEPTH_ARB
:
798 v
->value_int
= ctx
->CurrentStack
->Depth
+ 1;
800 case GL_CURRENT_MATRIX_ARB
:
801 case GL_TRANSPOSE_CURRENT_MATRIX_ARB
:
802 v
->value_matrix
= ctx
->CurrentStack
->Top
;
805 case GL_NUM_COMPRESSED_TEXTURE_FORMATS_ARB
:
806 v
->value_int
= _mesa_get_compressed_formats(ctx
, NULL
);
808 case GL_COMPRESSED_TEXTURE_FORMATS_ARB
:
810 _mesa_get_compressed_formats(ctx
, v
->value_int_n
.ints
);
811 assert(v
->value_int_n
.n
<= (int) ARRAY_SIZE(v
->value_int_n
.ints
));
814 case GL_MAX_VARYING_FLOATS_ARB
:
815 v
->value_int
= ctx
->Const
.MaxVarying
* 4;
818 /* Various object names */
820 case GL_TEXTURE_BINDING_1D
:
821 case GL_TEXTURE_BINDING_2D
:
822 case GL_TEXTURE_BINDING_3D
:
823 case GL_TEXTURE_BINDING_1D_ARRAY_EXT
:
824 case GL_TEXTURE_BINDING_2D_ARRAY_EXT
:
825 case GL_TEXTURE_BINDING_CUBE_MAP_ARB
:
826 case GL_TEXTURE_BINDING_RECTANGLE_NV
:
827 case GL_TEXTURE_BINDING_EXTERNAL_OES
:
828 case GL_TEXTURE_BINDING_CUBE_MAP_ARRAY
:
829 case GL_TEXTURE_BINDING_2D_MULTISAMPLE
:
830 case GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY
:
831 unit
= ctx
->Texture
.CurrentUnit
;
833 ctx
->Texture
.Unit
[unit
].CurrentTex
[d
->offset
]->Name
;
836 /* GL_EXT_packed_float */
837 case GL_RGBA_SIGNED_COMPONENTS_EXT
:
839 /* Note: we only check the 0th color attachment. */
840 const struct gl_renderbuffer
*rb
=
841 ctx
->DrawBuffer
->_ColorDrawBuffers
[0];
842 if (rb
&& _mesa_is_format_signed(rb
->Format
)) {
843 /* Issue 17 of GL_EXT_packed_float: If a component (such as
844 * alpha) has zero bits, the component should not be considered
845 * signed and so the bit for the respective component should be
849 _mesa_get_format_bits(rb
->Format
, GL_RED_BITS
);
851 _mesa_get_format_bits(rb
->Format
, GL_GREEN_BITS
);
853 _mesa_get_format_bits(rb
->Format
, GL_BLUE_BITS
);
855 _mesa_get_format_bits(rb
->Format
, GL_ALPHA_BITS
);
857 _mesa_get_format_bits(rb
->Format
, GL_TEXTURE_LUMINANCE_SIZE
);
859 _mesa_get_format_bits(rb
->Format
, GL_TEXTURE_INTENSITY_SIZE
);
861 v
->value_int_4
[0] = r_bits
+ l_bits
+ i_bits
> 0;
862 v
->value_int_4
[1] = g_bits
+ l_bits
+ i_bits
> 0;
863 v
->value_int_4
[2] = b_bits
+ l_bits
+ i_bits
> 0;
864 v
->value_int_4
[3] = a_bits
+ i_bits
> 0;
870 v
->value_int_4
[3] = 0;
875 /* GL_ARB_vertex_buffer_object */
876 case GL_VERTEX_ARRAY_BUFFER_BINDING_ARB
:
877 case GL_NORMAL_ARRAY_BUFFER_BINDING_ARB
:
878 case GL_COLOR_ARRAY_BUFFER_BINDING_ARB
:
879 case GL_INDEX_ARRAY_BUFFER_BINDING_ARB
:
880 case GL_EDGE_FLAG_ARRAY_BUFFER_BINDING_ARB
:
881 case GL_SECONDARY_COLOR_ARRAY_BUFFER_BINDING_ARB
:
882 case GL_FOG_COORDINATE_ARRAY_BUFFER_BINDING_ARB
:
883 buffer_obj
= (struct gl_buffer_object
**)
884 ((char *) ctx
->Array
.VAO
+ d
->offset
);
885 v
->value_int
= (*buffer_obj
)->Name
;
887 case GL_ARRAY_BUFFER_BINDING_ARB
:
888 v
->value_int
= ctx
->Array
.ArrayBufferObj
->Name
;
890 case GL_TEXTURE_COORD_ARRAY_BUFFER_BINDING_ARB
:
892 ctx
->Array
.VAO
->BufferBinding
[VERT_ATTRIB_TEX(ctx
->Array
.ActiveTexture
)].BufferObj
->Name
;
894 case GL_ELEMENT_ARRAY_BUFFER_BINDING_ARB
:
895 v
->value_int
= ctx
->Array
.VAO
->IndexBufferObj
->Name
;
898 /* ARB_vertex_array_bgra */
899 case GL_COLOR_ARRAY_SIZE
:
900 array
= &ctx
->Array
.VAO
->VertexAttrib
[VERT_ATTRIB_COLOR0
];
901 v
->value_int
= array
->Format
== GL_BGRA
? GL_BGRA
: array
->Size
;
903 case GL_SECONDARY_COLOR_ARRAY_SIZE
:
904 array
= &ctx
->Array
.VAO
->VertexAttrib
[VERT_ATTRIB_COLOR1
];
905 v
->value_int
= array
->Format
== GL_BGRA
? GL_BGRA
: array
->Size
;
908 /* ARB_copy_buffer */
909 case GL_COPY_READ_BUFFER
:
910 v
->value_int
= ctx
->CopyReadBuffer
->Name
;
912 case GL_COPY_WRITE_BUFFER
:
913 v
->value_int
= ctx
->CopyWriteBuffer
->Name
;
916 case GL_PIXEL_PACK_BUFFER_BINDING_EXT
:
917 v
->value_int
= ctx
->Pack
.BufferObj
->Name
;
919 case GL_PIXEL_UNPACK_BUFFER_BINDING_EXT
:
920 v
->value_int
= ctx
->Unpack
.BufferObj
->Name
;
922 case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING
:
923 v
->value_int
= ctx
->TransformFeedback
.CurrentBuffer
->Name
;
925 case GL_TRANSFORM_FEEDBACK_BUFFER_PAUSED
:
926 v
->value_int
= ctx
->TransformFeedback
.CurrentObject
->Paused
;
928 case GL_TRANSFORM_FEEDBACK_BUFFER_ACTIVE
:
929 v
->value_int
= ctx
->TransformFeedback
.CurrentObject
->Active
;
931 case GL_TRANSFORM_FEEDBACK_BINDING
:
932 v
->value_int
= ctx
->TransformFeedback
.CurrentObject
->Name
;
934 case GL_CURRENT_PROGRAM
:
935 /* The Changelog of the ARB_separate_shader_objects spec says:
937 * 24 25 Jul 2011 pbrown Remove the language erroneously deleting
938 * CURRENT_PROGRAM. In the EXT extension, this
939 * token was aliased to ACTIVE_PROGRAM_EXT, and
940 * was used to indicate the last program set by
941 * either ActiveProgramEXT or UseProgram. In
942 * the ARB extension, the SSO active programs
943 * are now program pipeline object state and
944 * CURRENT_PROGRAM should still be used to query
945 * the last program set by UseProgram (bug 7822).
948 ctx
->Shader
.ActiveProgram
? ctx
->Shader
.ActiveProgram
->Name
: 0;
950 case GL_READ_FRAMEBUFFER_BINDING_EXT
:
951 v
->value_int
= ctx
->ReadBuffer
->Name
;
953 case GL_RENDERBUFFER_BINDING_EXT
:
955 ctx
->CurrentRenderbuffer
? ctx
->CurrentRenderbuffer
->Name
: 0;
957 case GL_POINT_SIZE_ARRAY_BUFFER_BINDING_OES
:
958 v
->value_int
= ctx
->Array
.VAO
->BufferBinding
[VERT_ATTRIB_POINT_SIZE
].BufferObj
->Name
;
962 if (_mesa_get_clamp_fragment_color(ctx
, ctx
->DrawBuffer
))
963 COPY_4FV(v
->value_float_4
, ctx
->Fog
.Color
);
965 COPY_4FV(v
->value_float_4
, ctx
->Fog
.ColorUnclamped
);
967 case GL_COLOR_CLEAR_VALUE
:
968 if (_mesa_get_clamp_fragment_color(ctx
, ctx
->DrawBuffer
)) {
969 v
->value_float_4
[0] = CLAMP(ctx
->Color
.ClearColor
.f
[0], 0.0F
, 1.0F
);
970 v
->value_float_4
[1] = CLAMP(ctx
->Color
.ClearColor
.f
[1], 0.0F
, 1.0F
);
971 v
->value_float_4
[2] = CLAMP(ctx
->Color
.ClearColor
.f
[2], 0.0F
, 1.0F
);
972 v
->value_float_4
[3] = CLAMP(ctx
->Color
.ClearColor
.f
[3], 0.0F
, 1.0F
);
974 COPY_4FV(v
->value_float_4
, ctx
->Color
.ClearColor
.f
);
976 case GL_BLEND_COLOR_EXT
:
977 if (_mesa_get_clamp_fragment_color(ctx
, ctx
->DrawBuffer
))
978 COPY_4FV(v
->value_float_4
, ctx
->Color
.BlendColor
);
980 COPY_4FV(v
->value_float_4
, ctx
->Color
.BlendColorUnclamped
);
982 case GL_ALPHA_TEST_REF
:
983 if (_mesa_get_clamp_fragment_color(ctx
, ctx
->DrawBuffer
))
984 v
->value_float
= ctx
->Color
.AlphaRef
;
986 v
->value_float
= ctx
->Color
.AlphaRefUnclamped
;
988 case GL_MAX_VERTEX_UNIFORM_VECTORS
:
989 v
->value_int
= ctx
->Const
.Program
[MESA_SHADER_VERTEX
].MaxUniformComponents
/ 4;
992 case GL_MAX_FRAGMENT_UNIFORM_VECTORS
:
993 v
->value_int
= ctx
->Const
.Program
[MESA_SHADER_FRAGMENT
].MaxUniformComponents
/ 4;
996 /* GL_ARB_texture_buffer_object */
997 case GL_TEXTURE_BUFFER_ARB
:
998 v
->value_int
= ctx
->Texture
.BufferObject
->Name
;
1000 case GL_TEXTURE_BINDING_BUFFER_ARB
:
1001 unit
= ctx
->Texture
.CurrentUnit
;
1003 ctx
->Texture
.Unit
[unit
].CurrentTex
[TEXTURE_BUFFER_INDEX
]->Name
;
1005 case GL_TEXTURE_BUFFER_DATA_STORE_BINDING_ARB
:
1007 struct gl_buffer_object
*buf
=
1008 ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
]
1009 .CurrentTex
[TEXTURE_BUFFER_INDEX
]->BufferObject
;
1010 v
->value_int
= buf
? buf
->Name
: 0;
1013 case GL_TEXTURE_BUFFER_FORMAT_ARB
:
1014 v
->value_int
= ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
]
1015 .CurrentTex
[TEXTURE_BUFFER_INDEX
]->BufferObjectFormat
;
1018 /* GL_ARB_sampler_objects */
1019 case GL_SAMPLER_BINDING
:
1021 struct gl_sampler_object
*samp
=
1022 ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
].Sampler
;
1023 v
->value_int
= samp
? samp
->Name
: 0;
1026 /* GL_ARB_uniform_buffer_object */
1027 case GL_UNIFORM_BUFFER_BINDING
:
1028 v
->value_int
= ctx
->UniformBuffer
->Name
;
1030 /* GL_ARB_shader_storage_buffer_object */
1031 case GL_SHADER_STORAGE_BUFFER_BINDING
:
1032 v
->value_int
= ctx
->ShaderStorageBuffer
->Name
;
1034 /* GL_ARB_query_buffer_object */
1035 case GL_QUERY_BUFFER_BINDING
:
1036 v
->value_int
= ctx
->QueryBuffer
->Name
;
1038 /* GL_ARB_timer_query */
1040 if (ctx
->Driver
.GetTimestamp
) {
1041 v
->value_int64
= ctx
->Driver
.GetTimestamp(ctx
);
1044 _mesa_problem(ctx
, "driver doesn't implement GetTimestamp");
1048 case GL_DEBUG_OUTPUT
:
1049 case GL_DEBUG_OUTPUT_SYNCHRONOUS
:
1050 case GL_DEBUG_LOGGED_MESSAGES
:
1051 case GL_DEBUG_NEXT_LOGGED_MESSAGE_LENGTH
:
1052 case GL_DEBUG_GROUP_STACK_DEPTH
:
1053 v
->value_int
= _mesa_get_debug_state_int(ctx
, d
->pname
);
1055 /* GL_ARB_shader_atomic_counters */
1056 case GL_ATOMIC_COUNTER_BUFFER_BINDING
:
1057 if (ctx
->AtomicBuffer
) {
1058 v
->value_int
= ctx
->AtomicBuffer
->Name
;
1063 /* GL_ARB_draw_indirect */
1064 case GL_DRAW_INDIRECT_BUFFER_BINDING
:
1065 v
->value_int
= ctx
->DrawIndirectBuffer
->Name
;
1067 /* GL_ARB_indirect_parameters */
1068 case GL_PARAMETER_BUFFER_BINDING_ARB
:
1069 v
->value_int
= ctx
->ParameterBuffer
->Name
;
1071 /* GL_ARB_separate_shader_objects */
1072 case GL_PROGRAM_PIPELINE_BINDING
:
1073 if (ctx
->Pipeline
.Current
) {
1074 v
->value_int
= ctx
->Pipeline
.Current
->Name
;
1079 /* GL_ARB_compute_shader */
1080 case GL_DISPATCH_INDIRECT_BUFFER_BINDING
:
1081 v
->value_int
= ctx
->DispatchIndirectBuffer
->Name
;
1083 /* GL_ARB_multisample */
1085 v
->value_int
= _mesa_geometric_samples(ctx
->DrawBuffer
);
1087 case GL_SAMPLE_BUFFERS
:
1088 v
->value_int
= _mesa_geometric_samples(ctx
->DrawBuffer
) > 0;
1090 /* GL_EXT_textrue_integer */
1091 case GL_RGBA_INTEGER_MODE_EXT
:
1092 v
->value_int
= (ctx
->DrawBuffer
->_IntegerBuffers
!= 0);
1094 /* GL_ATI_meminfo & GL_NVX_gpu_memory_info */
1095 case GL_VBO_FREE_MEMORY_ATI
:
1096 case GL_TEXTURE_FREE_MEMORY_ATI
:
1097 case GL_RENDERBUFFER_FREE_MEMORY_ATI
:
1098 case GL_GPU_MEMORY_INFO_DEDICATED_VIDMEM_NVX
:
1099 case GL_GPU_MEMORY_INFO_TOTAL_AVAILABLE_MEMORY_NVX
:
1100 case GL_GPU_MEMORY_INFO_CURRENT_AVAILABLE_VIDMEM_NVX
:
1101 case GL_GPU_MEMORY_INFO_EVICTION_COUNT_NVX
:
1102 case GL_GPU_MEMORY_INFO_EVICTED_MEMORY_NVX
:
1104 struct gl_memory_info info
;
1106 ctx
->Driver
.QueryMemoryInfo(ctx
, &info
);
1108 if (d
->pname
== GL_GPU_MEMORY_INFO_DEDICATED_VIDMEM_NVX
)
1109 v
->value_int
= info
.total_device_memory
;
1110 else if (d
->pname
== GL_GPU_MEMORY_INFO_TOTAL_AVAILABLE_MEMORY_NVX
)
1111 v
->value_int
= info
.total_device_memory
+
1112 info
.total_staging_memory
;
1113 else if (d
->pname
== GL_GPU_MEMORY_INFO_CURRENT_AVAILABLE_VIDMEM_NVX
)
1114 v
->value_int
= info
.avail_device_memory
;
1115 else if (d
->pname
== GL_GPU_MEMORY_INFO_EVICTION_COUNT_NVX
)
1116 v
->value_int
= info
.nr_device_memory_evictions
;
1117 else if (d
->pname
== GL_GPU_MEMORY_INFO_EVICTED_MEMORY_NVX
)
1118 v
->value_int
= info
.device_memory_evicted
;
1120 /* ATI free memory enums.
1122 * Since the GPU memory is (usually) page-table based, every two
1123 * consecutive elements are equal. From the GL_ATI_meminfo
1126 * "param[0] - total memory free in the pool
1127 * param[1] - largest available free block in the pool
1128 * param[2] - total auxiliary memory free
1129 * param[3] - largest auxiliary free block"
1131 * All three (VBO, TEXTURE, RENDERBUFFER) queries return
1132 * the same numbers here.
1134 v
->value_int_4
[0] = info
.avail_device_memory
;
1135 v
->value_int_4
[1] = info
.avail_device_memory
;
1136 v
->value_int_4
[2] = info
.avail_staging_memory
;
1137 v
->value_int_4
[3] = info
.avail_staging_memory
;
1145 * Check extra constraints on a struct value_desc descriptor
1147 * If a struct value_desc has a non-NULL extra pointer, it means that
1148 * there are a number of extra constraints to check or actions to
1149 * perform. The extras is just an integer array where each integer
1150 * encode different constraints or actions.
1152 * \param ctx current context
1153 * \param func name of calling glGet*v() function for error reporting
1154 * \param d the struct value_desc that has the extra constraints
1156 * \return GL_FALSE if all of the constraints were not satisfied,
1157 * otherwise GL_TRUE.
1160 check_extra(struct gl_context
*ctx
, const char *func
, const struct value_desc
*d
)
1162 const GLuint version
= ctx
->Version
;
1163 GLboolean api_check
= GL_FALSE
;
1164 GLboolean api_found
= GL_FALSE
;
1167 for (e
= d
->extra
; *e
!= EXTRA_END
; e
++) {
1169 case EXTRA_VERSION_30
:
1170 api_check
= GL_TRUE
;
1172 api_found
= GL_TRUE
;
1174 case EXTRA_VERSION_31
:
1175 api_check
= GL_TRUE
;
1177 api_found
= GL_TRUE
;
1179 case EXTRA_VERSION_32
:
1180 api_check
= GL_TRUE
;
1182 api_found
= GL_TRUE
;
1184 case EXTRA_NEW_FRAG_CLAMP
:
1185 if (ctx
->NewState
& (_NEW_BUFFERS
| _NEW_FRAG_CLAMP
))
1186 _mesa_update_state(ctx
);
1189 api_check
= GL_TRUE
;
1190 if (ctx
->API
== API_OPENGLES2
)
1191 api_found
= GL_TRUE
;
1194 api_check
= GL_TRUE
;
1195 if (_mesa_is_gles3(ctx
))
1196 api_found
= GL_TRUE
;
1198 case EXTRA_API_ES31
:
1199 api_check
= GL_TRUE
;
1200 if (_mesa_is_gles31(ctx
))
1201 api_found
= GL_TRUE
;
1203 case EXTRA_API_ES32
:
1204 api_check
= GL_TRUE
;
1205 if (_mesa_is_gles32(ctx
))
1206 api_found
= GL_TRUE
;
1209 api_check
= GL_TRUE
;
1210 if (_mesa_is_desktop_gl(ctx
))
1211 api_found
= GL_TRUE
;
1213 case EXTRA_API_GL_CORE
:
1214 api_check
= GL_TRUE
;
1215 if (ctx
->API
== API_OPENGL_CORE
)
1216 api_found
= GL_TRUE
;
1218 case EXTRA_NEW_BUFFERS
:
1219 if (ctx
->NewState
& _NEW_BUFFERS
)
1220 _mesa_update_state(ctx
);
1222 case EXTRA_FLUSH_CURRENT
:
1223 FLUSH_CURRENT(ctx
, 0);
1225 case EXTRA_VALID_DRAW_BUFFER
:
1226 if (d
->pname
- GL_DRAW_BUFFER0_ARB
>= ctx
->Const
.MaxDrawBuffers
) {
1227 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(draw buffer %u)",
1228 func
, d
->pname
- GL_DRAW_BUFFER0_ARB
);
1232 case EXTRA_VALID_TEXTURE_UNIT
:
1233 if (ctx
->Texture
.CurrentUnit
>= ctx
->Const
.MaxTextureCoordUnits
) {
1234 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(texture %u)",
1235 func
, ctx
->Texture
.CurrentUnit
);
1239 case EXTRA_VALID_CLIP_DISTANCE
:
1240 if (d
->pname
- GL_CLIP_DISTANCE0
>= ctx
->Const
.MaxClipPlanes
) {
1241 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(clip distance %u)",
1242 func
, d
->pname
- GL_CLIP_DISTANCE0
);
1246 case EXTRA_GLSL_130
:
1247 api_check
= GL_TRUE
;
1248 if (ctx
->Const
.GLSLVersion
>= 130)
1249 api_found
= GL_TRUE
;
1251 case EXTRA_EXT_UBO_GS
:
1252 api_check
= GL_TRUE
;
1253 if (ctx
->Extensions
.ARB_uniform_buffer_object
&&
1254 _mesa_has_geometry_shaders(ctx
))
1255 api_found
= GL_TRUE
;
1257 case EXTRA_EXT_ATOMICS_GS
:
1258 api_check
= GL_TRUE
;
1259 if (ctx
->Extensions
.ARB_shader_atomic_counters
&&
1260 _mesa_has_geometry_shaders(ctx
))
1261 api_found
= GL_TRUE
;
1263 case EXTRA_EXT_SHADER_IMAGE_GS
:
1264 api_check
= GL_TRUE
;
1265 if (ctx
->Extensions
.ARB_shader_image_load_store
&&
1266 _mesa_has_geometry_shaders(ctx
))
1267 api_found
= GL_TRUE
;
1269 case EXTRA_EXT_ATOMICS_TESS
:
1270 api_check
= GL_TRUE
;
1271 api_found
= ctx
->Extensions
.ARB_shader_atomic_counters
&&
1272 _mesa_has_tessellation(ctx
);
1274 case EXTRA_EXT_SHADER_IMAGE_TESS
:
1275 api_check
= GL_TRUE
;
1276 api_found
= ctx
->Extensions
.ARB_shader_image_load_store
&&
1277 _mesa_has_tessellation(ctx
);
1279 case EXTRA_EXT_SSBO_GS
:
1280 api_check
= GL_TRUE
;
1281 if (ctx
->Extensions
.ARB_shader_storage_buffer_object
&&
1282 _mesa_has_geometry_shaders(ctx
))
1283 api_found
= GL_TRUE
;
1285 case EXTRA_EXT_FB_NO_ATTACH_GS
:
1286 api_check
= GL_TRUE
;
1287 if (ctx
->Extensions
.ARB_framebuffer_no_attachments
&&
1288 (_mesa_is_desktop_gl(ctx
) ||
1289 _mesa_has_OES_geometry_shader(ctx
)))
1290 api_found
= GL_TRUE
;
1292 case EXTRA_EXT_ES_GS
:
1293 api_check
= GL_TRUE
;
1294 if (_mesa_has_OES_geometry_shader(ctx
))
1295 api_found
= GL_TRUE
;
1299 default: /* *e is a offset into the extension struct */
1300 api_check
= GL_TRUE
;
1301 if (*(GLboolean
*) ((char *) &ctx
->Extensions
+ *e
))
1302 api_found
= GL_TRUE
;
1307 if (api_check
&& !api_found
) {
1308 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=%s)", func
,
1309 _mesa_enum_to_string(d
->pname
));
1316 static const struct value_desc error_value
=
1317 { 0, 0, TYPE_INVALID
, NO_OFFSET
, NO_EXTRA
};
1320 * Find the struct value_desc corresponding to the enum 'pname'.
1322 * We hash the enum value to get an index into the 'table' array,
1323 * which holds the index in the 'values' array of struct value_desc.
1324 * Once we've found the entry, we do the extra checks, if any, then
1325 * look up the value and return a pointer to it.
1327 * If the value has to be computed (for example, it's the result of a
1328 * function call or we need to add 1 to it), we use the tmp 'v' to
1331 * \param func name of glGet*v() func for error reporting
1332 * \param pname the enum value we're looking up
1333 * \param p is were we return the pointer to the value
1334 * \param v a tmp union value variable in the calling glGet*v() function
1336 * \return the struct value_desc corresponding to the enum or a struct
1337 * value_desc of TYPE_INVALID if not found. This lets the calling
1338 * glGet*v() function jump right into a switch statement and
1339 * handle errors there instead of having to check for NULL.
1341 static const struct value_desc
*
1342 find_value(const char *func
, GLenum pname
, void **p
, union value
*v
)
1344 GET_CURRENT_CONTEXT(ctx
);
1345 struct gl_texture_unit
*unit
;
1347 const struct value_desc
*d
;
1351 /* We index into the table_set[] list of per-API hash tables using the API's
1352 * value in the gl_api enum. Since GLES 3 doesn't have an API_OPENGL* enum
1353 * value since it's compatible with GLES2 its entry in table_set[] is at the
1356 STATIC_ASSERT(ARRAY_SIZE(table_set
) == API_OPENGL_LAST
+ 4);
1357 if (ctx
->API
== API_OPENGLES2
) {
1358 if (ctx
->Version
>= 32)
1359 api
= API_OPENGL_LAST
+ 3;
1360 else if (ctx
->Version
>= 31)
1361 api
= API_OPENGL_LAST
+ 2;
1362 else if (ctx
->Version
>= 30)
1363 api
= API_OPENGL_LAST
+ 1;
1365 mask
= ARRAY_SIZE(table(api
)) - 1;
1366 hash
= (pname
* prime_factor
);
1368 int idx
= table(api
)[hash
& mask
];
1370 /* If the enum isn't valid, the hash walk ends with index 0,
1371 * pointing to the first entry of values[] which doesn't hold
1372 * any valid enum. */
1373 if (unlikely(idx
== 0)) {
1374 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=%s)", func
,
1375 _mesa_enum_to_string(pname
));
1376 return &error_value
;
1380 if (likely(d
->pname
== pname
))
1386 if (unlikely(d
->extra
&& !check_extra(ctx
, func
, d
)))
1387 return &error_value
;
1389 switch (d
->location
) {
1391 *p
= ((char *) ctx
->DrawBuffer
+ d
->offset
);
1394 *p
= ((char *) ctx
+ d
->offset
);
1397 *p
= ((char *) ctx
->Array
.VAO
+ d
->offset
);
1400 unit
= &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1401 *p
= ((char *) unit
+ d
->offset
);
1404 find_custom_value(ctx
, d
, v
);
1412 /* silence warning */
1413 return &error_value
;
1416 static const int transpose
[] = {
1424 _mesa_GetBooleanv(GLenum pname
, GLboolean
*params
)
1426 const struct value_desc
*d
;
1432 d
= find_value("glGetBooleanv", pname
, &p
, &v
);
1437 params
[0] = INT_TO_BOOLEAN(d
->offset
);
1441 params
[7] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[7]);
1442 params
[6] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[6]);
1443 params
[5] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[5]);
1444 params
[4] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[4]);
1447 params
[3] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[3]);
1450 params
[2] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[2]);
1453 params
[1] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[1]);
1456 params
[0] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[0]);
1459 case TYPE_DOUBLEN_2
:
1460 params
[1] = FLOAT_TO_BOOLEAN(((GLdouble
*) p
)[1]);
1462 params
[0] = FLOAT_TO_BOOLEAN(((GLdouble
*) p
)[0]);
1467 params
[3] = INT_TO_BOOLEAN(((GLint
*) p
)[3]);
1470 params
[2] = INT_TO_BOOLEAN(((GLint
*) p
)[2]);
1474 params
[1] = INT_TO_BOOLEAN(((GLint
*) p
)[1]);
1478 params
[0] = INT_TO_BOOLEAN(((GLint
*) p
)[0]);
1482 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1483 params
[i
] = INT_TO_BOOLEAN(v
.value_int_n
.ints
[i
]);
1487 params
[0] = INT64_TO_BOOLEAN(((GLint64
*) p
)[0]);
1491 params
[0] = ((GLboolean
*) p
)[0];
1495 m
= *(GLmatrix
**) p
;
1496 for (i
= 0; i
< 16; i
++)
1497 params
[i
] = FLOAT_TO_BOOLEAN(m
->m
[i
]);
1501 m
= *(GLmatrix
**) p
;
1502 for (i
= 0; i
< 16; i
++)
1503 params
[i
] = FLOAT_TO_BOOLEAN(m
->m
[transpose
[i
]]);
1514 shift
= d
->type
- TYPE_BIT_0
;
1515 params
[0] = (*(GLbitfield
*) p
>> shift
) & 1;
1521 _mesa_GetFloatv(GLenum pname
, GLfloat
*params
)
1523 const struct value_desc
*d
;
1529 d
= find_value("glGetFloatv", pname
, &p
, &v
);
1534 params
[0] = (GLfloat
) d
->offset
;
1538 params
[7] = ((GLfloat
*) p
)[7];
1539 params
[6] = ((GLfloat
*) p
)[6];
1540 params
[5] = ((GLfloat
*) p
)[5];
1541 params
[4] = ((GLfloat
*) p
)[4];
1544 params
[3] = ((GLfloat
*) p
)[3];
1547 params
[2] = ((GLfloat
*) p
)[2];
1550 params
[1] = ((GLfloat
*) p
)[1];
1553 params
[0] = ((GLfloat
*) p
)[0];
1556 case TYPE_DOUBLEN_2
:
1557 params
[1] = (GLfloat
) (((GLdouble
*) p
)[1]);
1559 params
[0] = (GLfloat
) (((GLdouble
*) p
)[0]);
1563 params
[3] = (GLfloat
) (((GLint
*) p
)[3]);
1565 params
[2] = (GLfloat
) (((GLint
*) p
)[2]);
1568 params
[1] = (GLfloat
) (((GLint
*) p
)[1]);
1571 params
[0] = (GLfloat
) (((GLint
*) p
)[0]);
1575 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1576 params
[i
] = (GLfloat
) v
.value_int_n
.ints
[i
];
1580 params
[3] = (GLfloat
) (((GLuint
*) p
)[3]);
1582 params
[2] = (GLfloat
) (((GLuint
*) p
)[2]);
1584 params
[1] = (GLfloat
) (((GLuint
*) p
)[1]);
1586 params
[0] = (GLfloat
) (((GLuint
*) p
)[0]);
1590 params
[0] = (GLfloat
) (((GLint64
*) p
)[0]);
1594 params
[0] = BOOLEAN_TO_FLOAT(*(GLboolean
*) p
);
1598 m
= *(GLmatrix
**) p
;
1599 for (i
= 0; i
< 16; i
++)
1600 params
[i
] = m
->m
[i
];
1604 m
= *(GLmatrix
**) p
;
1605 for (i
= 0; i
< 16; i
++)
1606 params
[i
] = m
->m
[transpose
[i
]];
1617 shift
= d
->type
- TYPE_BIT_0
;
1618 params
[0] = BOOLEAN_TO_FLOAT((*(GLbitfield
*) p
>> shift
) & 1);
1624 _mesa_GetIntegerv(GLenum pname
, GLint
*params
)
1626 const struct value_desc
*d
;
1632 d
= find_value("glGetIntegerv", pname
, &p
, &v
);
1637 params
[0] = d
->offset
;
1641 params
[7] = IROUND(((GLfloat
*) p
)[7]);
1642 params
[6] = IROUND(((GLfloat
*) p
)[6]);
1643 params
[5] = IROUND(((GLfloat
*) p
)[5]);
1644 params
[4] = IROUND(((GLfloat
*) p
)[4]);
1646 params
[3] = IROUND(((GLfloat
*) p
)[3]);
1648 params
[2] = IROUND(((GLfloat
*) p
)[2]);
1650 params
[1] = IROUND(((GLfloat
*) p
)[1]);
1652 params
[0] = IROUND(((GLfloat
*) p
)[0]);
1656 params
[3] = FLOAT_TO_INT(((GLfloat
*) p
)[3]);
1658 params
[2] = FLOAT_TO_INT(((GLfloat
*) p
)[2]);
1660 params
[1] = FLOAT_TO_INT(((GLfloat
*) p
)[1]);
1662 params
[0] = FLOAT_TO_INT(((GLfloat
*) p
)[0]);
1665 case TYPE_DOUBLEN_2
:
1666 params
[1] = FLOAT_TO_INT(((GLdouble
*) p
)[1]);
1668 params
[0] = FLOAT_TO_INT(((GLdouble
*) p
)[0]);
1673 params
[3] = ((GLint
*) p
)[3];
1676 params
[2] = ((GLint
*) p
)[2];
1680 params
[1] = ((GLint
*) p
)[1];
1684 params
[0] = ((GLint
*) p
)[0];
1688 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1689 params
[i
] = v
.value_int_n
.ints
[i
];
1693 params
[0] = INT64_TO_INT(((GLint64
*) p
)[0]);
1697 params
[0] = BOOLEAN_TO_INT(*(GLboolean
*) p
);
1701 m
= *(GLmatrix
**) p
;
1702 for (i
= 0; i
< 16; i
++)
1703 params
[i
] = FLOAT_TO_INT(m
->m
[i
]);
1707 m
= *(GLmatrix
**) p
;
1708 for (i
= 0; i
< 16; i
++)
1709 params
[i
] = FLOAT_TO_INT(m
->m
[transpose
[i
]]);
1720 shift
= d
->type
- TYPE_BIT_0
;
1721 params
[0] = (*(GLbitfield
*) p
>> shift
) & 1;
1727 _mesa_GetInteger64v(GLenum pname
, GLint64
*params
)
1729 const struct value_desc
*d
;
1735 d
= find_value("glGetInteger64v", pname
, &p
, &v
);
1740 params
[0] = d
->offset
;
1744 params
[7] = IROUND64(((GLfloat
*) p
)[7]);
1745 params
[6] = IROUND64(((GLfloat
*) p
)[6]);
1746 params
[5] = IROUND64(((GLfloat
*) p
)[5]);
1747 params
[4] = IROUND64(((GLfloat
*) p
)[4]);
1749 params
[3] = IROUND64(((GLfloat
*) p
)[3]);
1751 params
[2] = IROUND64(((GLfloat
*) p
)[2]);
1753 params
[1] = IROUND64(((GLfloat
*) p
)[1]);
1755 params
[0] = IROUND64(((GLfloat
*) p
)[0]);
1759 params
[3] = FLOAT_TO_INT(((GLfloat
*) p
)[3]);
1761 params
[2] = FLOAT_TO_INT(((GLfloat
*) p
)[2]);
1763 params
[1] = FLOAT_TO_INT(((GLfloat
*) p
)[1]);
1765 params
[0] = FLOAT_TO_INT(((GLfloat
*) p
)[0]);
1768 case TYPE_DOUBLEN_2
:
1769 params
[1] = FLOAT_TO_INT(((GLdouble
*) p
)[1]);
1771 params
[0] = FLOAT_TO_INT(((GLdouble
*) p
)[0]);
1775 params
[3] = ((GLint
*) p
)[3];
1777 params
[2] = ((GLint
*) p
)[2];
1780 params
[1] = ((GLint
*) p
)[1];
1783 params
[0] = ((GLint
*) p
)[0];
1787 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1788 params
[i
] = INT_TO_BOOLEAN(v
.value_int_n
.ints
[i
]);
1792 params
[3] = ((GLuint
*) p
)[3];
1794 params
[2] = ((GLuint
*) p
)[2];
1796 params
[1] = ((GLuint
*) p
)[1];
1798 params
[0] = ((GLuint
*) p
)[0];
1802 params
[0] = ((GLint64
*) p
)[0];
1806 params
[0] = ((GLboolean
*) p
)[0];
1810 m
= *(GLmatrix
**) p
;
1811 for (i
= 0; i
< 16; i
++)
1812 params
[i
] = FLOAT_TO_INT64(m
->m
[i
]);
1816 m
= *(GLmatrix
**) p
;
1817 for (i
= 0; i
< 16; i
++)
1818 params
[i
] = FLOAT_TO_INT64(m
->m
[transpose
[i
]]);
1829 shift
= d
->type
- TYPE_BIT_0
;
1830 params
[0] = (*(GLbitfield
*) p
>> shift
) & 1;
1836 _mesa_GetDoublev(GLenum pname
, GLdouble
*params
)
1838 const struct value_desc
*d
;
1844 d
= find_value("glGetDoublev", pname
, &p
, &v
);
1849 params
[0] = d
->offset
;
1853 params
[7] = ((GLfloat
*) p
)[7];
1854 params
[6] = ((GLfloat
*) p
)[6];
1855 params
[5] = ((GLfloat
*) p
)[5];
1856 params
[4] = ((GLfloat
*) p
)[4];
1859 params
[3] = ((GLfloat
*) p
)[3];
1862 params
[2] = ((GLfloat
*) p
)[2];
1865 params
[1] = ((GLfloat
*) p
)[1];
1868 params
[0] = ((GLfloat
*) p
)[0];
1871 case TYPE_DOUBLEN_2
:
1872 params
[1] = ((GLdouble
*) p
)[1];
1874 params
[0] = ((GLdouble
*) p
)[0];
1878 params
[3] = ((GLint
*) p
)[3];
1880 params
[2] = ((GLint
*) p
)[2];
1883 params
[1] = ((GLint
*) p
)[1];
1886 params
[0] = ((GLint
*) p
)[0];
1890 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1891 params
[i
] = v
.value_int_n
.ints
[i
];
1895 params
[3] = ((GLuint
*) p
)[3];
1897 params
[2] = ((GLuint
*) p
)[2];
1899 params
[1] = ((GLuint
*) p
)[1];
1901 params
[0] = ((GLuint
*) p
)[0];
1905 params
[0] = (GLdouble
) (((GLint64
*) p
)[0]);
1909 params
[0] = *(GLboolean
*) p
;
1913 m
= *(GLmatrix
**) p
;
1914 for (i
= 0; i
< 16; i
++)
1915 params
[i
] = m
->m
[i
];
1919 m
= *(GLmatrix
**) p
;
1920 for (i
= 0; i
< 16; i
++)
1921 params
[i
] = m
->m
[transpose
[i
]];
1932 shift
= d
->type
- TYPE_BIT_0
;
1933 params
[0] = (*(GLbitfield
*) p
>> shift
) & 1;
1939 * Convert a GL texture binding enum such as GL_TEXTURE_BINDING_2D
1940 * into the corresponding Mesa texture target index.
1941 * \return TEXTURE_x_INDEX or -1 if binding is invalid
1944 tex_binding_to_index(const struct gl_context
*ctx
, GLenum binding
)
1947 case GL_TEXTURE_BINDING_1D
:
1948 return _mesa_is_desktop_gl(ctx
) ? TEXTURE_1D_INDEX
: -1;
1949 case GL_TEXTURE_BINDING_2D
:
1950 return TEXTURE_2D_INDEX
;
1951 case GL_TEXTURE_BINDING_3D
:
1952 return ctx
->API
!= API_OPENGLES
? TEXTURE_3D_INDEX
: -1;
1953 case GL_TEXTURE_BINDING_CUBE_MAP
:
1954 return ctx
->Extensions
.ARB_texture_cube_map
1955 ? TEXTURE_CUBE_INDEX
: -1;
1956 case GL_TEXTURE_BINDING_RECTANGLE
:
1957 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.NV_texture_rectangle
1958 ? TEXTURE_RECT_INDEX
: -1;
1959 case GL_TEXTURE_BINDING_1D_ARRAY
:
1960 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_array
1961 ? TEXTURE_1D_ARRAY_INDEX
: -1;
1962 case GL_TEXTURE_BINDING_2D_ARRAY
:
1963 return (_mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_array
)
1964 || _mesa_is_gles3(ctx
)
1965 ? TEXTURE_2D_ARRAY_INDEX
: -1;
1966 case GL_TEXTURE_BINDING_BUFFER
:
1967 return (_mesa_has_ARB_texture_buffer_object(ctx
) ||
1968 _mesa_has_OES_texture_buffer(ctx
)) ?
1969 TEXTURE_BUFFER_INDEX
: -1;
1970 case GL_TEXTURE_BINDING_CUBE_MAP_ARRAY
:
1971 return _mesa_has_texture_cube_map_array(ctx
)
1972 ? TEXTURE_CUBE_ARRAY_INDEX
: -1;
1973 case GL_TEXTURE_BINDING_2D_MULTISAMPLE
:
1974 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.ARB_texture_multisample
1975 ? TEXTURE_2D_MULTISAMPLE_INDEX
: -1;
1976 case GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY
:
1977 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.ARB_texture_multisample
1978 ? TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX
: -1;
1984 static enum value_type
1985 find_value_indexed(const char *func
, GLenum pname
, GLuint index
, union value
*v
)
1987 GET_CURRENT_CONTEXT(ctx
);
1992 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1994 if (!ctx
->Extensions
.EXT_draw_buffers2
)
1996 v
->value_int
= (ctx
->Color
.BlendEnabled
>> index
) & 1;
2001 case GL_BLEND_SRC_RGB
:
2002 if (index
>= ctx
->Const
.MaxDrawBuffers
)
2004 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
2006 v
->value_int
= ctx
->Color
.Blend
[index
].SrcRGB
;
2008 case GL_BLEND_SRC_ALPHA
:
2009 if (index
>= ctx
->Const
.MaxDrawBuffers
)
2011 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
2013 v
->value_int
= ctx
->Color
.Blend
[index
].SrcA
;
2017 case GL_BLEND_DST_RGB
:
2018 if (index
>= ctx
->Const
.MaxDrawBuffers
)
2020 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
2022 v
->value_int
= ctx
->Color
.Blend
[index
].DstRGB
;
2024 case GL_BLEND_DST_ALPHA
:
2025 if (index
>= ctx
->Const
.MaxDrawBuffers
)
2027 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
2029 v
->value_int
= ctx
->Color
.Blend
[index
].DstA
;
2031 case GL_BLEND_EQUATION_RGB
:
2032 if (index
>= ctx
->Const
.MaxDrawBuffers
)
2034 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
2036 v
->value_int
= ctx
->Color
.Blend
[index
].EquationRGB
;
2038 case GL_BLEND_EQUATION_ALPHA
:
2039 if (index
>= ctx
->Const
.MaxDrawBuffers
)
2041 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
2043 v
->value_int
= ctx
->Color
.Blend
[index
].EquationA
;
2046 case GL_COLOR_WRITEMASK
:
2047 if (index
>= ctx
->Const
.MaxDrawBuffers
)
2049 if (!ctx
->Extensions
.EXT_draw_buffers2
)
2051 v
->value_int_4
[0] = ctx
->Color
.ColorMask
[index
][RCOMP
] ? 1 : 0;
2052 v
->value_int_4
[1] = ctx
->Color
.ColorMask
[index
][GCOMP
] ? 1 : 0;
2053 v
->value_int_4
[2] = ctx
->Color
.ColorMask
[index
][BCOMP
] ? 1 : 0;
2054 v
->value_int_4
[3] = ctx
->Color
.ColorMask
[index
][ACOMP
] ? 1 : 0;
2057 case GL_SCISSOR_BOX
:
2058 if (index
>= ctx
->Const
.MaxViewports
)
2060 v
->value_int_4
[0] = ctx
->Scissor
.ScissorArray
[index
].X
;
2061 v
->value_int_4
[1] = ctx
->Scissor
.ScissorArray
[index
].Y
;
2062 v
->value_int_4
[2] = ctx
->Scissor
.ScissorArray
[index
].Width
;
2063 v
->value_int_4
[3] = ctx
->Scissor
.ScissorArray
[index
].Height
;
2066 case GL_WINDOW_RECTANGLE_EXT
:
2067 if (!ctx
->Extensions
.EXT_window_rectangles
)
2069 if (index
>= ctx
->Const
.MaxWindowRectangles
)
2071 v
->value_int_4
[0] = ctx
->Scissor
.WindowRects
[index
].X
;
2072 v
->value_int_4
[1] = ctx
->Scissor
.WindowRects
[index
].Y
;
2073 v
->value_int_4
[2] = ctx
->Scissor
.WindowRects
[index
].Width
;
2074 v
->value_int_4
[3] = ctx
->Scissor
.WindowRects
[index
].Height
;
2078 if (index
>= ctx
->Const
.MaxViewports
)
2080 v
->value_float_4
[0] = ctx
->ViewportArray
[index
].X
;
2081 v
->value_float_4
[1] = ctx
->ViewportArray
[index
].Y
;
2082 v
->value_float_4
[2] = ctx
->ViewportArray
[index
].Width
;
2083 v
->value_float_4
[3] = ctx
->ViewportArray
[index
].Height
;
2084 return TYPE_FLOAT_4
;
2086 case GL_DEPTH_RANGE
:
2087 if (index
>= ctx
->Const
.MaxViewports
)
2089 v
->value_double_2
[0] = ctx
->ViewportArray
[index
].Near
;
2090 v
->value_double_2
[1] = ctx
->ViewportArray
[index
].Far
;
2091 return TYPE_DOUBLEN_2
;
2093 case GL_TRANSFORM_FEEDBACK_BUFFER_START
:
2094 if (index
>= ctx
->Const
.MaxTransformFeedbackBuffers
)
2096 if (!ctx
->Extensions
.EXT_transform_feedback
)
2098 v
->value_int64
= ctx
->TransformFeedback
.CurrentObject
->Offset
[index
];
2101 case GL_TRANSFORM_FEEDBACK_BUFFER_SIZE
:
2102 if (index
>= ctx
->Const
.MaxTransformFeedbackBuffers
)
2104 if (!ctx
->Extensions
.EXT_transform_feedback
)
2107 = ctx
->TransformFeedback
.CurrentObject
->RequestedSize
[index
];
2110 case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING
:
2111 if (index
>= ctx
->Const
.MaxTransformFeedbackBuffers
)
2113 if (!ctx
->Extensions
.EXT_transform_feedback
)
2115 v
->value_int
= ctx
->TransformFeedback
.CurrentObject
->BufferNames
[index
];
2118 case GL_UNIFORM_BUFFER_BINDING
:
2119 if (index
>= ctx
->Const
.MaxUniformBufferBindings
)
2121 if (!ctx
->Extensions
.ARB_uniform_buffer_object
)
2123 v
->value_int
= ctx
->UniformBufferBindings
[index
].BufferObject
->Name
;
2126 case GL_UNIFORM_BUFFER_START
:
2127 if (index
>= ctx
->Const
.MaxUniformBufferBindings
)
2129 if (!ctx
->Extensions
.ARB_uniform_buffer_object
)
2131 v
->value_int
= ctx
->UniformBufferBindings
[index
].Offset
< 0 ? 0 :
2132 ctx
->UniformBufferBindings
[index
].Offset
;
2135 case GL_UNIFORM_BUFFER_SIZE
:
2136 if (index
>= ctx
->Const
.MaxUniformBufferBindings
)
2138 if (!ctx
->Extensions
.ARB_uniform_buffer_object
)
2140 v
->value_int
= ctx
->UniformBufferBindings
[index
].Size
< 0 ? 0 :
2141 ctx
->UniformBufferBindings
[index
].Size
;
2144 /* ARB_shader_storage_buffer_object */
2145 case GL_SHADER_STORAGE_BUFFER_BINDING
:
2146 if (!ctx
->Extensions
.ARB_shader_storage_buffer_object
)
2148 if (index
>= ctx
->Const
.MaxShaderStorageBufferBindings
)
2150 v
->value_int
= ctx
->ShaderStorageBufferBindings
[index
].BufferObject
->Name
;
2153 case GL_SHADER_STORAGE_BUFFER_START
:
2154 if (!ctx
->Extensions
.ARB_shader_storage_buffer_object
)
2156 if (index
>= ctx
->Const
.MaxShaderStorageBufferBindings
)
2158 v
->value_int
= ctx
->ShaderStorageBufferBindings
[index
].Offset
< 0 ? 0 :
2159 ctx
->ShaderStorageBufferBindings
[index
].Offset
;
2162 case GL_SHADER_STORAGE_BUFFER_SIZE
:
2163 if (!ctx
->Extensions
.ARB_shader_storage_buffer_object
)
2165 if (index
>= ctx
->Const
.MaxShaderStorageBufferBindings
)
2167 v
->value_int
= ctx
->ShaderStorageBufferBindings
[index
].Size
< 0 ? 0 :
2168 ctx
->ShaderStorageBufferBindings
[index
].Size
;
2171 /* ARB_texture_multisample / GL3.2 */
2172 case GL_SAMPLE_MASK_VALUE
:
2175 if (!ctx
->Extensions
.ARB_texture_multisample
)
2177 v
->value_int
= ctx
->Multisample
.SampleMaskValue
;
2180 case GL_ATOMIC_COUNTER_BUFFER_BINDING
:
2181 if (!ctx
->Extensions
.ARB_shader_atomic_counters
)
2183 if (index
>= ctx
->Const
.MaxAtomicBufferBindings
)
2185 v
->value_int
= ctx
->AtomicBufferBindings
[index
].BufferObject
->Name
;
2188 case GL_ATOMIC_COUNTER_BUFFER_START
:
2189 if (!ctx
->Extensions
.ARB_shader_atomic_counters
)
2191 if (index
>= ctx
->Const
.MaxAtomicBufferBindings
)
2193 v
->value_int64
= ctx
->AtomicBufferBindings
[index
].Offset
;
2196 case GL_ATOMIC_COUNTER_BUFFER_SIZE
:
2197 if (!ctx
->Extensions
.ARB_shader_atomic_counters
)
2199 if (index
>= ctx
->Const
.MaxAtomicBufferBindings
)
2201 v
->value_int64
= ctx
->AtomicBufferBindings
[index
].Size
;
2204 case GL_VERTEX_BINDING_DIVISOR
:
2205 if ((!_mesa_is_desktop_gl(ctx
) || !ctx
->Extensions
.ARB_instanced_arrays
) &&
2206 !_mesa_is_gles31(ctx
))
2208 if (index
>= ctx
->Const
.Program
[MESA_SHADER_VERTEX
].MaxAttribs
)
2210 v
->value_int
= ctx
->Array
.VAO
->BufferBinding
[VERT_ATTRIB_GENERIC(index
)].InstanceDivisor
;
2213 case GL_VERTEX_BINDING_OFFSET
:
2214 if (!_mesa_is_desktop_gl(ctx
) && !_mesa_is_gles31(ctx
))
2216 if (index
>= ctx
->Const
.Program
[MESA_SHADER_VERTEX
].MaxAttribs
)
2218 v
->value_int
= ctx
->Array
.VAO
->BufferBinding
[VERT_ATTRIB_GENERIC(index
)].Offset
;
2221 case GL_VERTEX_BINDING_STRIDE
:
2222 if (!_mesa_is_desktop_gl(ctx
) && !_mesa_is_gles31(ctx
))
2224 if (index
>= ctx
->Const
.Program
[MESA_SHADER_VERTEX
].MaxAttribs
)
2226 v
->value_int
= ctx
->Array
.VAO
->BufferBinding
[VERT_ATTRIB_GENERIC(index
)].Stride
;
2229 case GL_VERTEX_BINDING_BUFFER
:
2230 if (ctx
->API
== API_OPENGLES2
&& ctx
->Version
< 31)
2232 if (index
>= ctx
->Const
.Program
[MESA_SHADER_VERTEX
].MaxAttribs
)
2234 v
->value_int
= ctx
->Array
.VAO
->BufferBinding
[VERT_ATTRIB_GENERIC(index
)].BufferObj
->Name
;
2237 /* ARB_shader_image_load_store */
2238 case GL_IMAGE_BINDING_NAME
: {
2239 struct gl_texture_object
*t
;
2241 if (!ctx
->Extensions
.ARB_shader_image_load_store
)
2243 if (index
>= ctx
->Const
.MaxImageUnits
)
2246 t
= ctx
->ImageUnits
[index
].TexObj
;
2247 v
->value_int
= (t
? t
->Name
: 0);
2251 case GL_IMAGE_BINDING_LEVEL
:
2252 if (!ctx
->Extensions
.ARB_shader_image_load_store
)
2254 if (index
>= ctx
->Const
.MaxImageUnits
)
2257 v
->value_int
= ctx
->ImageUnits
[index
].Level
;
2260 case GL_IMAGE_BINDING_LAYERED
:
2261 if (!ctx
->Extensions
.ARB_shader_image_load_store
)
2263 if (index
>= ctx
->Const
.MaxImageUnits
)
2266 v
->value_int
= ctx
->ImageUnits
[index
].Layered
;
2269 case GL_IMAGE_BINDING_LAYER
:
2270 if (!ctx
->Extensions
.ARB_shader_image_load_store
)
2272 if (index
>= ctx
->Const
.MaxImageUnits
)
2275 v
->value_int
= ctx
->ImageUnits
[index
].Layer
;
2278 case GL_IMAGE_BINDING_ACCESS
:
2279 if (!ctx
->Extensions
.ARB_shader_image_load_store
)
2281 if (index
>= ctx
->Const
.MaxImageUnits
)
2284 v
->value_int
= ctx
->ImageUnits
[index
].Access
;
2287 case GL_IMAGE_BINDING_FORMAT
:
2288 if (!ctx
->Extensions
.ARB_shader_image_load_store
)
2290 if (index
>= ctx
->Const
.MaxImageUnits
)
2293 v
->value_int
= ctx
->ImageUnits
[index
].Format
;
2296 /* ARB_direct_state_access */
2297 case GL_TEXTURE_BINDING_1D
:
2298 case GL_TEXTURE_BINDING_1D_ARRAY
:
2299 case GL_TEXTURE_BINDING_2D
:
2300 case GL_TEXTURE_BINDING_2D_ARRAY
:
2301 case GL_TEXTURE_BINDING_2D_MULTISAMPLE
:
2302 case GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY
:
2303 case GL_TEXTURE_BINDING_3D
:
2304 case GL_TEXTURE_BINDING_BUFFER
:
2305 case GL_TEXTURE_BINDING_CUBE_MAP
:
2306 case GL_TEXTURE_BINDING_CUBE_MAP_ARRAY
:
2307 case GL_TEXTURE_BINDING_RECTANGLE
: {
2310 if (ctx
->API
!= API_OPENGL_CORE
)
2312 target
= tex_binding_to_index(ctx
, pname
);
2315 if (index
>= _mesa_max_tex_unit(ctx
))
2318 v
->value_int
= ctx
->Texture
.Unit
[index
].CurrentTex
[target
]->Name
;
2322 case GL_SAMPLER_BINDING
: {
2323 struct gl_sampler_object
*samp
;
2325 if (ctx
->API
!= API_OPENGL_CORE
)
2327 if (index
>= _mesa_max_tex_unit(ctx
))
2330 samp
= ctx
->Texture
.Unit
[index
].Sampler
;
2331 v
->value_int
= samp
? samp
->Name
: 0;
2335 case GL_MAX_COMPUTE_WORK_GROUP_COUNT
:
2336 if (!_mesa_has_compute_shaders(ctx
))
2340 v
->value_int
= ctx
->Const
.MaxComputeWorkGroupCount
[index
];
2343 case GL_MAX_COMPUTE_WORK_GROUP_SIZE
:
2344 if (!_mesa_has_compute_shaders(ctx
))
2348 v
->value_int
= ctx
->Const
.MaxComputeWorkGroupSize
[index
];
2351 /* ARB_compute_variable_group_size */
2352 case GL_MAX_COMPUTE_VARIABLE_GROUP_SIZE_ARB
:
2353 if (!ctx
->Extensions
.ARB_compute_variable_group_size
)
2357 v
->value_int
= ctx
->Const
.MaxComputeVariableGroupSize
[index
];
2362 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=%s)", func
,
2363 _mesa_enum_to_string(pname
));
2364 return TYPE_INVALID
;
2366 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(pname=%s)", func
,
2367 _mesa_enum_to_string(pname
));
2368 return TYPE_INVALID
;
2372 _mesa_GetBooleani_v( GLenum pname
, GLuint index
, GLboolean
*params
)
2375 enum value_type type
=
2376 find_value_indexed("glGetBooleani_v", pname
, index
, &v
);
2381 params
[0] = INT_TO_BOOLEAN(v
.value_int
);
2385 params
[0] = INT_TO_BOOLEAN(v
.value_int_4
[0]);
2386 params
[1] = INT_TO_BOOLEAN(v
.value_int_4
[1]);
2387 params
[2] = INT_TO_BOOLEAN(v
.value_int_4
[2]);
2388 params
[3] = INT_TO_BOOLEAN(v
.value_int_4
[3]);
2391 params
[0] = INT64_TO_BOOLEAN(v
.value_int64
);
2394 ; /* nothing - GL error was recorded */
2399 _mesa_GetIntegeri_v( GLenum pname
, GLuint index
, GLint
*params
)
2402 enum value_type type
=
2403 find_value_indexed("glGetIntegeri_v", pname
, index
, &v
);
2408 params
[3] = IROUND(v
.value_float_4
[3]);
2411 params
[2] = IROUND(v
.value_float_4
[2]);
2414 params
[1] = IROUND(v
.value_float_4
[1]);
2417 params
[0] = IROUND(v
.value_float_4
[0]);
2420 case TYPE_DOUBLEN_2
:
2421 params
[1] = IROUND(v
.value_double_2
[1]);
2423 params
[0] = IROUND(v
.value_double_2
[0]);
2428 params
[0] = v
.value_int
;
2432 params
[0] = v
.value_int_4
[0];
2433 params
[1] = v
.value_int_4
[1];
2434 params
[2] = v
.value_int_4
[2];
2435 params
[3] = v
.value_int_4
[3];
2438 params
[0] = INT64_TO_INT(v
.value_int64
);
2441 ; /* nothing - GL error was recorded */
2446 _mesa_GetInteger64i_v( GLenum pname
, GLuint index
, GLint64
*params
)
2449 enum value_type type
=
2450 find_value_indexed("glGetInteger64i_v", pname
, index
, &v
);
2454 params
[0] = v
.value_int
;
2457 params
[0] = v
.value_int_4
[0];
2458 params
[1] = v
.value_int_4
[1];
2459 params
[2] = v
.value_int_4
[2];
2460 params
[3] = v
.value_int_4
[3];
2463 params
[0] = (GLuint
) v
.value_int
;
2466 params
[0] = (GLuint
) v
.value_int_4
[0];
2467 params
[1] = (GLuint
) v
.value_int_4
[1];
2468 params
[2] = (GLuint
) v
.value_int_4
[2];
2469 params
[3] = (GLuint
) v
.value_int_4
[3];
2472 params
[0] = v
.value_int64
;
2475 ; /* nothing - GL error was recorded */
2480 _mesa_GetFloati_v(GLenum pname
, GLuint index
, GLfloat
*params
)
2485 enum value_type type
=
2486 find_value_indexed("glGetFloati_v", pname
, index
, &v
);
2491 params
[3] = v
.value_float_4
[3];
2494 params
[2] = v
.value_float_4
[2];
2497 params
[1] = v
.value_float_4
[1];
2500 params
[0] = v
.value_float_4
[0];
2503 case TYPE_DOUBLEN_2
:
2504 params
[1] = (GLfloat
) v
.value_double_2
[1];
2506 params
[0] = (GLfloat
) v
.value_double_2
[0];
2510 params
[3] = (GLfloat
) v
.value_int_4
[3];
2512 params
[2] = (GLfloat
) v
.value_int_4
[2];
2515 params
[1] = (GLfloat
) v
.value_int_4
[1];
2518 params
[0] = (GLfloat
) v
.value_int_4
[0];
2522 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
2523 params
[i
] = (GLfloat
) v
.value_int_n
.ints
[i
];
2527 params
[3] = (GLfloat
) ((GLuint
) v
.value_int_4
[3]);
2529 params
[2] = (GLfloat
) ((GLuint
) v
.value_int_4
[2]);
2531 params
[1] = (GLfloat
) ((GLuint
) v
.value_int_4
[1]);
2533 params
[0] = (GLfloat
) ((GLuint
) v
.value_int_4
[0]);
2537 params
[0] = (GLfloat
) v
.value_int64
;
2541 params
[0] = BOOLEAN_TO_FLOAT(v
.value_bool
);
2545 m
= *(GLmatrix
**) &v
;
2546 for (i
= 0; i
< 16; i
++)
2547 params
[i
] = m
->m
[i
];
2551 m
= *(GLmatrix
**) &v
;
2552 for (i
= 0; i
< 16; i
++)
2553 params
[i
] = m
->m
[transpose
[i
]];
2562 _mesa_GetDoublei_v(GLenum pname
, GLuint index
, GLdouble
*params
)
2567 enum value_type type
=
2568 find_value_indexed("glGetDoublei_v", pname
, index
, &v
);
2573 params
[3] = (GLdouble
) v
.value_float_4
[3];
2576 params
[2] = (GLdouble
) v
.value_float_4
[2];
2579 params
[1] = (GLdouble
) v
.value_float_4
[1];
2582 params
[0] = (GLdouble
) v
.value_float_4
[0];
2585 case TYPE_DOUBLEN_2
:
2586 params
[1] = v
.value_double_2
[1];
2588 params
[0] = v
.value_double_2
[0];
2592 params
[3] = (GLdouble
) v
.value_int_4
[3];
2594 params
[2] = (GLdouble
) v
.value_int_4
[2];
2597 params
[1] = (GLdouble
) v
.value_int_4
[1];
2600 params
[0] = (GLdouble
) v
.value_int_4
[0];
2604 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
2605 params
[i
] = (GLdouble
) v
.value_int_n
.ints
[i
];
2609 params
[3] = (GLdouble
) ((GLuint
) v
.value_int_4
[3]);
2611 params
[2] = (GLdouble
) ((GLuint
) v
.value_int_4
[2]);
2613 params
[1] = (GLdouble
) ((GLuint
) v
.value_int_4
[1]);
2615 params
[0] = (GLdouble
) ((GLuint
) v
.value_int_4
[0]);
2619 params
[0] = (GLdouble
) v
.value_int64
;
2623 params
[0] = (GLdouble
) BOOLEAN_TO_FLOAT(v
.value_bool
);
2627 m
= *(GLmatrix
**) &v
;
2628 for (i
= 0; i
< 16; i
++)
2629 params
[i
] = (GLdouble
) m
->m
[i
];
2633 m
= *(GLmatrix
**) &v
;
2634 for (i
= 0; i
< 16; i
++)
2635 params
[i
] = (GLdouble
) m
->m
[transpose
[i
]];
2644 _mesa_GetFixedv(GLenum pname
, GLfixed
*params
)
2646 const struct value_desc
*d
;
2652 d
= find_value("glGetDoublev", pname
, &p
, &v
);
2657 params
[0] = INT_TO_FIXED(d
->offset
);
2662 params
[3] = FLOAT_TO_FIXED(((GLfloat
*) p
)[3]);
2665 params
[2] = FLOAT_TO_FIXED(((GLfloat
*) p
)[2]);
2668 params
[1] = FLOAT_TO_FIXED(((GLfloat
*) p
)[1]);
2671 params
[0] = FLOAT_TO_FIXED(((GLfloat
*) p
)[0]);
2674 case TYPE_DOUBLEN_2
:
2675 params
[1] = FLOAT_TO_FIXED(((GLdouble
*) p
)[1]);
2677 params
[0] = FLOAT_TO_FIXED(((GLdouble
*) p
)[0]);
2682 params
[3] = INT_TO_FIXED(((GLint
*) p
)[3]);
2685 params
[2] = INT_TO_FIXED(((GLint
*) p
)[2]);
2689 params
[1] = INT_TO_FIXED(((GLint
*) p
)[1]);
2693 params
[0] = INT_TO_FIXED(((GLint
*) p
)[0]);
2697 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
2698 params
[i
] = INT_TO_FIXED(v
.value_int_n
.ints
[i
]);
2702 params
[0] = ((GLint64
*) p
)[0];
2706 params
[0] = BOOLEAN_TO_FIXED(((GLboolean
*) p
)[0]);
2710 m
= *(GLmatrix
**) p
;
2711 for (i
= 0; i
< 16; i
++)
2712 params
[i
] = FLOAT_TO_FIXED(m
->m
[i
]);
2716 m
= *(GLmatrix
**) p
;
2717 for (i
= 0; i
< 16; i
++)
2718 params
[i
] = FLOAT_TO_FIXED(m
->m
[transpose
[i
]]);
2729 shift
= d
->type
- TYPE_BIT_0
;
2730 params
[0] = BOOLEAN_TO_FIXED((*(GLbitfield
*) p
>> shift
) & 1);