2 * Copyright (C) 2010 Brian Paul All Rights Reserved.
3 * Copyright (C) 2010 Intel Corporation
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
12 * The above copyright notice and this permission notice shall be included
13 * in all copies or substantial portions of the Software.
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
16 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
19 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
20 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
21 * OTHER DEALINGS IN THE SOFTWARE.
23 * Author: Kristian Høgsberg <krh@bitplanet.net>
29 #include "debug_output.h"
33 #include "extensions.h"
38 #include "texcompress.h"
40 #include "framebuffer.h"
41 #include "samplerobj.h"
44 /* This is a table driven implemetation of the glGet*v() functions.
45 * The basic idea is that most getters just look up an int somewhere
46 * in struct gl_context and then convert it to a bool or float according to
47 * which of glGetIntegerv() glGetBooleanv() etc is being called.
48 * Instead of generating code to do this, we can just record the enum
49 * value and the offset into struct gl_context in an array of structs. Then
50 * in glGet*(), we lookup the struct for the enum in question, and use
51 * the offset to get the int we need.
53 * Sometimes we need to look up a float, a boolean, a bit in a
54 * bitfield, a matrix or other types instead, so we need to track the
55 * type of the value in struct gl_context. And sometimes the value isn't in
56 * struct gl_context but in the drawbuffer, the array object, current texture
57 * unit, or maybe it's a computed value. So we need to also track
58 * where or how to find the value. Finally, we sometimes need to
59 * check that one of a number of extensions are enabled, the GL
60 * version or flush or call _mesa_update_state(). This is done by
61 * attaching optional extra information to the value description
62 * struct, it's sort of like an array of opcodes that describe extra
65 * Putting all this together we end up with struct value_desc below,
66 * and with a couple of macros to help, the table of struct value_desc
67 * is about as concise as the specification in the old python script.
70 #define FLOAT_TO_BOOLEAN(X) ( (X) ? GL_TRUE : GL_FALSE )
71 #define FLOAT_TO_FIXED(F) ( ((F) * 65536.0f > INT_MAX) ? INT_MAX : \
72 ((F) * 65536.0f < INT_MIN) ? INT_MIN : \
73 (GLint) ((F) * 65536.0f) )
75 #define INT_TO_BOOLEAN(I) ( (I) ? GL_TRUE : GL_FALSE )
76 #define INT_TO_FIXED(I) ( ((I) > SHRT_MAX) ? INT_MAX : \
77 ((I) < SHRT_MIN) ? INT_MIN : \
78 (GLint) ((I) * 65536) )
80 #define INT64_TO_BOOLEAN(I) ( (I) ? GL_TRUE : GL_FALSE )
81 #define INT64_TO_INT(I) ( (GLint)((I > INT_MAX) ? INT_MAX : ((I < INT_MIN) ? INT_MIN : (I))) )
83 #define BOOLEAN_TO_INT(B) ( (GLint) (B) )
84 #define BOOLEAN_TO_INT64(B) ( (GLint64) (B) )
85 #define BOOLEAN_TO_FLOAT(B) ( (B) ? 1.0F : 0.0F )
86 #define BOOLEAN_TO_FIXED(B) ( (GLint) ((B) ? 1 : 0) << 16 )
88 #define ENUM_TO_INT64(E) ( (GLint64) (E) )
89 #define ENUM_TO_FIXED(E) (E)
125 enum value_location
{
145 EXTRA_NEW_FRAG_CLAMP
,
146 EXTRA_VALID_DRAW_BUFFER
,
147 EXTRA_VALID_TEXTURE_UNIT
,
148 EXTRA_VALID_CLIP_DISTANCE
,
152 EXTRA_EXT_ATOMICS_GS
,
153 EXTRA_EXT_SHADER_IMAGE_GS
,
154 EXTRA_EXT_ATOMICS_TESS
,
155 EXTRA_EXT_SHADER_IMAGE_TESS
,
157 EXTRA_EXT_FB_NO_ATTACH_GS
,
161 #define NO_EXTRA NULL
166 GLubyte location
; /**< enum value_location */
167 GLubyte type
; /**< enum value_type */
174 GLfloat value_float_4
[4];
175 GLdouble value_double_2
[2];
176 GLmatrix
*value_matrix
;
178 GLint value_int_4
[4];
182 /* Sigh, see GL_COMPRESSED_TEXTURE_FORMATS_ARB handling */
186 GLboolean value_bool
;
189 #define BUFFER_FIELD(field, type) \
190 LOC_BUFFER, type, offsetof(struct gl_framebuffer, field)
191 #define CONTEXT_FIELD(field, type) \
192 LOC_CONTEXT, type, offsetof(struct gl_context, field)
193 #define ARRAY_FIELD(field, type) \
194 LOC_ARRAY, type, offsetof(struct gl_vertex_array_object, field)
195 #undef CONST /* already defined through windows.h */
196 #define CONST(value) \
197 LOC_CONTEXT, TYPE_CONST, value
199 #define BUFFER_INT(field) BUFFER_FIELD(field, TYPE_INT)
200 #define BUFFER_ENUM(field) BUFFER_FIELD(field, TYPE_ENUM)
201 #define BUFFER_BOOL(field) BUFFER_FIELD(field, TYPE_BOOLEAN)
203 #define CONTEXT_INT(field) CONTEXT_FIELD(field, TYPE_INT)
204 #define CONTEXT_INT2(field) CONTEXT_FIELD(field, TYPE_INT_2)
205 #define CONTEXT_INT64(field) CONTEXT_FIELD(field, TYPE_INT64)
206 #define CONTEXT_ENUM(field) CONTEXT_FIELD(field, TYPE_ENUM)
207 #define CONTEXT_ENUM2(field) CONTEXT_FIELD(field, TYPE_ENUM_2)
208 #define CONTEXT_BOOL(field) CONTEXT_FIELD(field, TYPE_BOOLEAN)
209 #define CONTEXT_BIT0(field) CONTEXT_FIELD(field, TYPE_BIT_0)
210 #define CONTEXT_BIT1(field) CONTEXT_FIELD(field, TYPE_BIT_1)
211 #define CONTEXT_BIT2(field) CONTEXT_FIELD(field, TYPE_BIT_2)
212 #define CONTEXT_BIT3(field) CONTEXT_FIELD(field, TYPE_BIT_3)
213 #define CONTEXT_BIT4(field) CONTEXT_FIELD(field, TYPE_BIT_4)
214 #define CONTEXT_BIT5(field) CONTEXT_FIELD(field, TYPE_BIT_5)
215 #define CONTEXT_BIT6(field) CONTEXT_FIELD(field, TYPE_BIT_6)
216 #define CONTEXT_BIT7(field) CONTEXT_FIELD(field, TYPE_BIT_7)
217 #define CONTEXT_FLOAT(field) CONTEXT_FIELD(field, TYPE_FLOAT)
218 #define CONTEXT_FLOAT2(field) CONTEXT_FIELD(field, TYPE_FLOAT_2)
219 #define CONTEXT_FLOAT3(field) CONTEXT_FIELD(field, TYPE_FLOAT_3)
220 #define CONTEXT_FLOAT4(field) CONTEXT_FIELD(field, TYPE_FLOAT_4)
221 #define CONTEXT_MATRIX(field) CONTEXT_FIELD(field, TYPE_MATRIX)
222 #define CONTEXT_MATRIX_T(field) CONTEXT_FIELD(field, TYPE_MATRIX_T)
224 #define ARRAY_INT(field) ARRAY_FIELD(field, TYPE_INT)
225 #define ARRAY_ENUM(field) ARRAY_FIELD(field, TYPE_ENUM)
226 #define ARRAY_BOOL(field) ARRAY_FIELD(field, TYPE_BOOLEAN)
229 offsetof(struct gl_extensions, f)
231 #define EXTRA_EXT(e) \
232 static const int extra_##e[] = { \
236 #define EXTRA_EXT2(e1, e2) \
237 static const int extra_##e1##_##e2[] = { \
238 EXT(e1), EXT(e2), EXTRA_END \
241 /* The 'extra' mechanism is a way to specify extra checks (such as
242 * extensions or specific gl versions) or actions (flush current, new
243 * buffers) that we need to do before looking up an enum. We need to
244 * declare them all up front so we can refer to them in the value_desc
247 * Each EXTRA_ will be executed. For EXTRA_* enums of extensions and API
248 * versions, listing multiple ones in an array means an error will be thrown
249 * only if none of them are available. If you need to check for "AND"
250 * behavior, you would need to make a custom EXTRA_ enum.
253 static const int extra_new_buffers
[] = {
258 static const int extra_new_frag_clamp
[] = {
259 EXTRA_NEW_FRAG_CLAMP
,
263 static const int extra_valid_draw_buffer
[] = {
264 EXTRA_VALID_DRAW_BUFFER
,
268 static const int extra_valid_texture_unit
[] = {
269 EXTRA_VALID_TEXTURE_UNIT
,
273 static const int extra_valid_clip_distance
[] = {
274 EXTRA_VALID_CLIP_DISTANCE
,
278 static const int extra_flush_current_valid_texture_unit
[] = {
280 EXTRA_VALID_TEXTURE_UNIT
,
284 static const int extra_flush_current
[] = {
289 static const int extra_EXT_texture_integer_and_new_buffers
[] = {
290 EXT(EXT_texture_integer
),
295 static const int extra_GLSL_130_es3
[] = {
301 static const int extra_texture_buffer_object
[] = {
304 EXT(ARB_texture_buffer_object
),
308 static const int extra_ARB_transform_feedback2_api_es3
[] = {
309 EXT(ARB_transform_feedback2
),
314 static const int extra_ARB_uniform_buffer_object_and_geometry_shader
[] = {
319 static const int extra_ARB_ES2_compatibility_api_es2
[] = {
320 EXT(ARB_ES2_compatibility
),
325 static const int extra_ARB_ES3_compatibility_api_es3
[] = {
326 EXT(ARB_ES3_compatibility
),
331 static const int extra_EXT_framebuffer_sRGB_and_new_buffers
[] = {
332 EXT(EXT_framebuffer_sRGB
),
337 static const int extra_EXT_packed_float
[] = {
338 EXT(EXT_packed_float
),
343 static const int extra_EXT_texture_array_es3
[] = {
344 EXT(EXT_texture_array
),
349 static const int extra_ARB_shader_atomic_counters_and_geometry_shader
[] = {
350 EXTRA_EXT_ATOMICS_GS
,
354 static const int extra_ARB_shader_image_load_store_and_geometry_shader
[] = {
355 EXTRA_EXT_SHADER_IMAGE_GS
,
359 static const int extra_ARB_shader_atomic_counters_and_tessellation
[] = {
360 EXTRA_EXT_ATOMICS_TESS
,
364 static const int extra_ARB_shader_image_load_store_and_tessellation
[] = {
365 EXTRA_EXT_SHADER_IMAGE_TESS
,
369 /* HACK: remove when ARB_compute_shader is actually supported */
370 static const int extra_ARB_compute_shader_es31
[] = {
371 EXT(ARB_compute_shader
),
376 static const int extra_ARB_shader_storage_buffer_object_es31
[] = {
377 EXT(ARB_shader_storage_buffer_object
),
382 static const int extra_ARB_shader_storage_buffer_object_and_geometry_shader
[] = {
387 static const int extra_ARB_shader_image_load_store_shader_storage_buffer_object_es31
[] = {
388 EXT(ARB_shader_image_load_store
),
389 EXT(ARB_shader_storage_buffer_object
),
394 static const int extra_ARB_framebuffer_no_attachments_and_geometry_shader
[] = {
395 EXTRA_EXT_FB_NO_ATTACH_GS
,
399 static const int extra_ARB_viewport_array_or_oes_geometry_shader
[] = {
400 EXT(ARB_viewport_array
),
405 static const int extra_ARB_gpu_shader5_or_oes_geometry_shader
[] = {
406 EXT(ARB_gpu_shader5
),
411 static const int extra_ARB_gpu_shader5_or_OES_sample_variables
[] = {
412 EXT(ARB_gpu_shader5
),
413 EXT(OES_sample_variables
),
416 EXTRA_EXT(ARB_texture_cube_map
);
417 EXTRA_EXT(EXT_texture_array
);
418 EXTRA_EXT(NV_fog_distance
);
419 EXTRA_EXT(EXT_texture_filter_anisotropic
);
420 EXTRA_EXT(NV_point_sprite
);
421 EXTRA_EXT(NV_texture_rectangle
);
422 EXTRA_EXT(EXT_stencil_two_side
);
423 EXTRA_EXT(EXT_depth_bounds_test
);
424 EXTRA_EXT(ARB_depth_clamp
);
425 EXTRA_EXT(ATI_fragment_shader
);
426 EXTRA_EXT(EXT_provoking_vertex
);
427 EXTRA_EXT(ARB_fragment_shader
);
428 EXTRA_EXT(ARB_fragment_program
);
429 EXTRA_EXT2(ARB_framebuffer_object
, EXT_framebuffer_multisample
);
430 EXTRA_EXT(ARB_seamless_cube_map
);
432 EXTRA_EXT(ARB_vertex_shader
);
433 EXTRA_EXT(EXT_transform_feedback
);
434 EXTRA_EXT(ARB_transform_feedback3
);
435 EXTRA_EXT(EXT_pixel_buffer_object
);
436 EXTRA_EXT(ARB_vertex_program
);
437 EXTRA_EXT2(NV_point_sprite
, ARB_point_sprite
);
438 EXTRA_EXT2(ARB_vertex_program
, ARB_fragment_program
);
439 EXTRA_EXT(ARB_color_buffer_float
);
440 EXTRA_EXT(EXT_framebuffer_sRGB
);
441 EXTRA_EXT(OES_EGL_image_external
);
442 EXTRA_EXT(ARB_blend_func_extended
);
443 EXTRA_EXT(ARB_uniform_buffer_object
);
444 EXTRA_EXT(ARB_timer_query
);
445 EXTRA_EXT(ARB_texture_cube_map_array
);
446 EXTRA_EXT(ARB_texture_buffer_range
);
447 EXTRA_EXT(ARB_texture_multisample
);
448 EXTRA_EXT(ARB_texture_gather
);
449 EXTRA_EXT(ARB_shader_atomic_counters
);
450 EXTRA_EXT(ARB_draw_indirect
);
451 EXTRA_EXT(ARB_shader_image_load_store
);
452 EXTRA_EXT(ARB_viewport_array
);
453 EXTRA_EXT(ARB_compute_shader
);
454 EXTRA_EXT(ARB_gpu_shader5
);
455 EXTRA_EXT(ARB_query_buffer_object
);
456 EXTRA_EXT2(ARB_transform_feedback3
, ARB_gpu_shader5
);
457 EXTRA_EXT(INTEL_performance_query
);
458 EXTRA_EXT(ARB_explicit_uniform_location
);
459 EXTRA_EXT(ARB_clip_control
);
460 EXTRA_EXT(EXT_polygon_offset_clamp
);
461 EXTRA_EXT(ARB_framebuffer_no_attachments
);
462 EXTRA_EXT(ARB_tessellation_shader
);
463 EXTRA_EXT(ARB_shader_subroutine
);
464 EXTRA_EXT(ARB_shader_storage_buffer_object
);
465 EXTRA_EXT(ARB_indirect_parameters
);
466 EXTRA_EXT(ATI_meminfo
);
467 EXTRA_EXT(NVX_gpu_memory_info
);
470 extra_ARB_color_buffer_float_or_glcore
[] = {
471 EXT(ARB_color_buffer_float
),
477 extra_NV_primitive_restart
[] = {
478 EXT(NV_primitive_restart
),
482 static const int extra_version_30
[] = { EXTRA_VERSION_30
, EXTRA_END
};
483 static const int extra_version_31
[] = { EXTRA_VERSION_31
, EXTRA_END
};
484 static const int extra_version_32
[] = { EXTRA_VERSION_32
, EXTRA_END
};
485 static const int extra_version_40
[] = { EXTRA_VERSION_40
, EXTRA_END
};
487 static const int extra_gl30_es3
[] = {
493 static const int extra_gl32_es3
[] = {
499 static const int extra_version_32_OES_geometry_shader
[] = {
505 static const int extra_gl40_ARB_sample_shading
[] = {
507 EXT(ARB_sample_shading
),
512 extra_ARB_vertex_program_api_es2
[] = {
513 EXT(ARB_vertex_program
),
518 /* The ReadBuffer get token is valid under either full GL or under
519 * GLES2 if the NV_read_buffer extension is available. */
521 extra_NV_read_buffer_api_gl
[] = {
527 static const int extra_core_ARB_color_buffer_float_and_new_buffers
[] = {
529 EXT(ARB_color_buffer_float
),
534 /* This is the big table describing all the enums we accept in
535 * glGet*v(). The table is partitioned into six parts: enums
536 * understood by all GL APIs (OpenGL, GLES and GLES2), enums shared
537 * between OpenGL and GLES, enums exclusive to GLES, etc for the
538 * remaining combinations. To look up the enums valid in a given API
539 * we will use a hash table specific to that API. These tables are in
540 * turn generated at build time and included through get_hash.h.
543 #include "get_hash.h"
545 /* All we need now is a way to look up the value struct from the enum.
546 * The code generated by gcc for the old generated big switch
547 * statement is a big, balanced, open coded if/else tree, essentially
548 * an unrolled binary search. It would be natural to sort the new
549 * enum table and use bsearch(), but we will use a read-only hash
550 * table instead. bsearch() has a nice guaranteed worst case
551 * performance, but we're also guaranteed to hit that worst case
552 * (log2(n) iterations) for about half the enums. Instead, using an
553 * open addressing hash table, we can find the enum on the first try
554 * for 80% of the enums, 1 collision for 10% and never more than 5
555 * collisions for any enum (typical numbers). And the code is very
556 * simple, even though it feels a little magic. */
560 print_table_stats(int api
)
562 int i
, j
, collisions
[11], count
, hash
, mask
;
563 const struct value_desc
*d
;
564 const char *api_names
[] = {
565 [API_OPENGL_COMPAT
] = "GL",
566 [API_OPENGL_CORE
] = "GL_CORE",
567 [API_OPENGLES
] = "GLES",
568 [API_OPENGLES2
] = "GLES2",
570 const char *api_name
;
572 api_name
= api
< ARRAY_SIZE(api_names
) ? api_names
[api
] : "N/A";
574 mask
= ARRAY_SIZE(table(api
)) - 1;
575 memset(collisions
, 0, sizeof collisions
);
577 for (i
= 0; i
< ARRAY_SIZE(table(api
)); i
++) {
581 d
= &values
[table(api
)[i
]];
582 hash
= (d
->pname
* prime_factor
);
585 if (values
[table(api
)[hash
& mask
]].pname
== d
->pname
)
597 printf("number of enums for %s: %d (total %ld)\n",
598 api_name
, count
, ARRAY_SIZE(values
));
599 for (i
= 0; i
< ARRAY_SIZE(collisions
) - 1; i
++)
600 if (collisions
[i
] > 0)
601 printf(" %d enums with %d %scollisions\n",
602 collisions
[i
], i
, i
== 10 ? "or more " : "");
607 * Initialize the enum hash for a given API
609 * This is called from one_time_init() to insert the enum values that
610 * are valid for the API in question into the enum hash table.
612 * \param the current context, for determining the API in question
614 void _mesa_init_get_hash(struct gl_context
*ctx
)
617 print_table_stats(ctx
->API
);
624 * Handle irregular enums
626 * Some values don't conform to the "well-known type at context
627 * pointer + offset" pattern, so we have this function to catch all
628 * the corner cases. Typically, it's a computed value or a one-off
629 * pointer to a custom struct or something.
631 * In this case we can't return a pointer to the value, so we'll have
632 * to use the temporary variable 'v' declared back in the calling
633 * glGet*v() function to store the result.
635 * \param ctx the current context
636 * \param d the struct value_desc that describes the enum
637 * \param v pointer to the tmp declared in the calling glGet*v() function
640 find_custom_value(struct gl_context
*ctx
, const struct value_desc
*d
, union value
*v
)
642 struct gl_buffer_object
**buffer_obj
;
643 struct gl_vertex_attrib_array
*array
;
647 case GL_MAJOR_VERSION
:
648 v
->value_int
= ctx
->Version
/ 10;
650 case GL_MINOR_VERSION
:
651 v
->value_int
= ctx
->Version
% 10;
657 case GL_TEXTURE_CUBE_MAP
:
658 case GL_TEXTURE_RECTANGLE_NV
:
659 case GL_TEXTURE_EXTERNAL_OES
:
660 v
->value_bool
= _mesa_IsEnabled(d
->pname
);
663 case GL_LINE_STIPPLE_PATTERN
:
664 /* This is the only GLushort, special case it here by promoting
665 * to an int rather than introducing a new type. */
666 v
->value_int
= ctx
->Line
.StipplePattern
;
669 case GL_CURRENT_RASTER_TEXTURE_COORDS
:
670 unit
= ctx
->Texture
.CurrentUnit
;
671 v
->value_float_4
[0] = ctx
->Current
.RasterTexCoords
[unit
][0];
672 v
->value_float_4
[1] = ctx
->Current
.RasterTexCoords
[unit
][1];
673 v
->value_float_4
[2] = ctx
->Current
.RasterTexCoords
[unit
][2];
674 v
->value_float_4
[3] = ctx
->Current
.RasterTexCoords
[unit
][3];
677 case GL_CURRENT_TEXTURE_COORDS
:
678 unit
= ctx
->Texture
.CurrentUnit
;
679 v
->value_float_4
[0] = ctx
->Current
.Attrib
[VERT_ATTRIB_TEX0
+ unit
][0];
680 v
->value_float_4
[1] = ctx
->Current
.Attrib
[VERT_ATTRIB_TEX0
+ unit
][1];
681 v
->value_float_4
[2] = ctx
->Current
.Attrib
[VERT_ATTRIB_TEX0
+ unit
][2];
682 v
->value_float_4
[3] = ctx
->Current
.Attrib
[VERT_ATTRIB_TEX0
+ unit
][3];
685 case GL_COLOR_WRITEMASK
:
686 v
->value_int_4
[0] = ctx
->Color
.ColorMask
[0][RCOMP
] ? 1 : 0;
687 v
->value_int_4
[1] = ctx
->Color
.ColorMask
[0][GCOMP
] ? 1 : 0;
688 v
->value_int_4
[2] = ctx
->Color
.ColorMask
[0][BCOMP
] ? 1 : 0;
689 v
->value_int_4
[3] = ctx
->Color
.ColorMask
[0][ACOMP
] ? 1 : 0;
693 v
->value_bool
= ctx
->Current
.Attrib
[VERT_ATTRIB_EDGEFLAG
][0] == 1.0F
;
697 v
->value_enum
= ctx
->ReadBuffer
->ColorReadBuffer
;
700 case GL_MAP2_GRID_DOMAIN
:
701 v
->value_float_4
[0] = ctx
->Eval
.MapGrid2u1
;
702 v
->value_float_4
[1] = ctx
->Eval
.MapGrid2u2
;
703 v
->value_float_4
[2] = ctx
->Eval
.MapGrid2v1
;
704 v
->value_float_4
[3] = ctx
->Eval
.MapGrid2v2
;
707 case GL_TEXTURE_STACK_DEPTH
:
708 unit
= ctx
->Texture
.CurrentUnit
;
709 v
->value_int
= ctx
->TextureMatrixStack
[unit
].Depth
+ 1;
711 case GL_TEXTURE_MATRIX
:
712 unit
= ctx
->Texture
.CurrentUnit
;
713 v
->value_matrix
= ctx
->TextureMatrixStack
[unit
].Top
;
716 case GL_TEXTURE_COORD_ARRAY
:
717 case GL_TEXTURE_COORD_ARRAY_SIZE
:
718 case GL_TEXTURE_COORD_ARRAY_TYPE
:
719 case GL_TEXTURE_COORD_ARRAY_STRIDE
:
720 array
= &ctx
->Array
.VAO
->VertexAttrib
[VERT_ATTRIB_TEX(ctx
->Array
.ActiveTexture
)];
721 v
->value_int
= *(GLuint
*) ((char *) array
+ d
->offset
);
724 case GL_ACTIVE_TEXTURE_ARB
:
725 v
->value_int
= GL_TEXTURE0_ARB
+ ctx
->Texture
.CurrentUnit
;
727 case GL_CLIENT_ACTIVE_TEXTURE_ARB
:
728 v
->value_int
= GL_TEXTURE0_ARB
+ ctx
->Array
.ActiveTexture
;
731 case GL_MODELVIEW_STACK_DEPTH
:
732 case GL_PROJECTION_STACK_DEPTH
:
733 v
->value_int
= *(GLint
*) ((char *) ctx
+ d
->offset
) + 1;
736 case GL_MAX_TEXTURE_SIZE
:
737 case GL_MAX_3D_TEXTURE_SIZE
:
738 case GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB
:
739 p
= (GLuint
*) ((char *) ctx
+ d
->offset
);
740 v
->value_int
= 1 << (*p
- 1);
744 v
->value_int_4
[0] = ctx
->Scissor
.ScissorArray
[0].X
;
745 v
->value_int_4
[1] = ctx
->Scissor
.ScissorArray
[0].Y
;
746 v
->value_int_4
[2] = ctx
->Scissor
.ScissorArray
[0].Width
;
747 v
->value_int_4
[3] = ctx
->Scissor
.ScissorArray
[0].Height
;
750 case GL_SCISSOR_TEST
:
751 v
->value_bool
= ctx
->Scissor
.EnableFlags
& 1;
756 ctx
->ListState
.CurrentList
? ctx
->ListState
.CurrentList
->Name
: 0;
759 if (!ctx
->CompileFlag
)
761 else if (ctx
->ExecuteFlag
)
762 v
->value_enum
= GL_COMPILE_AND_EXECUTE
;
764 v
->value_enum
= GL_COMPILE
;
768 v
->value_float_4
[0] = ctx
->ViewportArray
[0].X
;
769 v
->value_float_4
[1] = ctx
->ViewportArray
[0].Y
;
770 v
->value_float_4
[2] = ctx
->ViewportArray
[0].Width
;
771 v
->value_float_4
[3] = ctx
->ViewportArray
[0].Height
;
775 v
->value_double_2
[0] = ctx
->ViewportArray
[0].Near
;
776 v
->value_double_2
[1] = ctx
->ViewportArray
[0].Far
;
779 case GL_ACTIVE_STENCIL_FACE_EXT
:
780 v
->value_enum
= ctx
->Stencil
.ActiveFace
? GL_BACK
: GL_FRONT
;
783 case GL_STENCIL_FAIL
:
784 v
->value_enum
= ctx
->Stencil
.FailFunc
[ctx
->Stencil
.ActiveFace
];
786 case GL_STENCIL_FUNC
:
787 v
->value_enum
= ctx
->Stencil
.Function
[ctx
->Stencil
.ActiveFace
];
789 case GL_STENCIL_PASS_DEPTH_FAIL
:
790 v
->value_enum
= ctx
->Stencil
.ZFailFunc
[ctx
->Stencil
.ActiveFace
];
792 case GL_STENCIL_PASS_DEPTH_PASS
:
793 v
->value_enum
= ctx
->Stencil
.ZPassFunc
[ctx
->Stencil
.ActiveFace
];
796 v
->value_int
= _mesa_get_stencil_ref(ctx
, ctx
->Stencil
.ActiveFace
);
798 case GL_STENCIL_BACK_REF
:
799 v
->value_int
= _mesa_get_stencil_ref(ctx
, 1);
801 case GL_STENCIL_VALUE_MASK
:
802 v
->value_int
= ctx
->Stencil
.ValueMask
[ctx
->Stencil
.ActiveFace
];
804 case GL_STENCIL_WRITEMASK
:
805 v
->value_int
= ctx
->Stencil
.WriteMask
[ctx
->Stencil
.ActiveFace
];
808 case GL_NUM_EXTENSIONS
:
809 v
->value_int
= _mesa_get_extension_count(ctx
);
812 case GL_IMPLEMENTATION_COLOR_READ_TYPE_OES
:
813 v
->value_int
= _mesa_get_color_read_type(ctx
);
815 case GL_IMPLEMENTATION_COLOR_READ_FORMAT_OES
:
816 v
->value_int
= _mesa_get_color_read_format(ctx
);
819 case GL_CURRENT_MATRIX_STACK_DEPTH_ARB
:
820 v
->value_int
= ctx
->CurrentStack
->Depth
+ 1;
822 case GL_CURRENT_MATRIX_ARB
:
823 case GL_TRANSPOSE_CURRENT_MATRIX_ARB
:
824 v
->value_matrix
= ctx
->CurrentStack
->Top
;
827 case GL_NUM_COMPRESSED_TEXTURE_FORMATS_ARB
:
828 v
->value_int
= _mesa_get_compressed_formats(ctx
, NULL
);
830 case GL_COMPRESSED_TEXTURE_FORMATS_ARB
:
832 _mesa_get_compressed_formats(ctx
, v
->value_int_n
.ints
);
833 assert(v
->value_int_n
.n
<= (int) ARRAY_SIZE(v
->value_int_n
.ints
));
836 case GL_MAX_VARYING_FLOATS_ARB
:
837 v
->value_int
= ctx
->Const
.MaxVarying
* 4;
840 /* Various object names */
842 case GL_TEXTURE_BINDING_1D
:
843 case GL_TEXTURE_BINDING_2D
:
844 case GL_TEXTURE_BINDING_3D
:
845 case GL_TEXTURE_BINDING_1D_ARRAY_EXT
:
846 case GL_TEXTURE_BINDING_2D_ARRAY_EXT
:
847 case GL_TEXTURE_BINDING_CUBE_MAP_ARB
:
848 case GL_TEXTURE_BINDING_RECTANGLE_NV
:
849 case GL_TEXTURE_BINDING_EXTERNAL_OES
:
850 case GL_TEXTURE_BINDING_CUBE_MAP_ARRAY
:
851 case GL_TEXTURE_BINDING_2D_MULTISAMPLE
:
852 case GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY
:
853 unit
= ctx
->Texture
.CurrentUnit
;
855 ctx
->Texture
.Unit
[unit
].CurrentTex
[d
->offset
]->Name
;
858 /* GL_EXT_packed_float */
859 case GL_RGBA_SIGNED_COMPONENTS_EXT
:
861 /* Note: we only check the 0th color attachment. */
862 const struct gl_renderbuffer
*rb
=
863 ctx
->DrawBuffer
->_ColorDrawBuffers
[0];
864 if (rb
&& _mesa_is_format_signed(rb
->Format
)) {
865 /* Issue 17 of GL_EXT_packed_float: If a component (such as
866 * alpha) has zero bits, the component should not be considered
867 * signed and so the bit for the respective component should be
871 _mesa_get_format_bits(rb
->Format
, GL_RED_BITS
);
873 _mesa_get_format_bits(rb
->Format
, GL_GREEN_BITS
);
875 _mesa_get_format_bits(rb
->Format
, GL_BLUE_BITS
);
877 _mesa_get_format_bits(rb
->Format
, GL_ALPHA_BITS
);
879 _mesa_get_format_bits(rb
->Format
, GL_TEXTURE_LUMINANCE_SIZE
);
881 _mesa_get_format_bits(rb
->Format
, GL_TEXTURE_INTENSITY_SIZE
);
883 v
->value_int_4
[0] = r_bits
+ l_bits
+ i_bits
> 0;
884 v
->value_int_4
[1] = g_bits
+ l_bits
+ i_bits
> 0;
885 v
->value_int_4
[2] = b_bits
+ l_bits
+ i_bits
> 0;
886 v
->value_int_4
[3] = a_bits
+ i_bits
> 0;
892 v
->value_int_4
[3] = 0;
897 /* GL_ARB_vertex_buffer_object */
898 case GL_VERTEX_ARRAY_BUFFER_BINDING_ARB
:
899 case GL_NORMAL_ARRAY_BUFFER_BINDING_ARB
:
900 case GL_COLOR_ARRAY_BUFFER_BINDING_ARB
:
901 case GL_INDEX_ARRAY_BUFFER_BINDING_ARB
:
902 case GL_EDGE_FLAG_ARRAY_BUFFER_BINDING_ARB
:
903 case GL_SECONDARY_COLOR_ARRAY_BUFFER_BINDING_ARB
:
904 case GL_FOG_COORDINATE_ARRAY_BUFFER_BINDING_ARB
:
905 buffer_obj
= (struct gl_buffer_object
**)
906 ((char *) ctx
->Array
.VAO
+ d
->offset
);
907 v
->value_int
= (*buffer_obj
)->Name
;
909 case GL_ARRAY_BUFFER_BINDING_ARB
:
910 v
->value_int
= ctx
->Array
.ArrayBufferObj
->Name
;
912 case GL_TEXTURE_COORD_ARRAY_BUFFER_BINDING_ARB
:
914 ctx
->Array
.VAO
->VertexBinding
[VERT_ATTRIB_TEX(ctx
->Array
.ActiveTexture
)].BufferObj
->Name
;
916 case GL_ELEMENT_ARRAY_BUFFER_BINDING_ARB
:
917 v
->value_int
= ctx
->Array
.VAO
->IndexBufferObj
->Name
;
920 /* ARB_vertex_array_bgra */
921 case GL_COLOR_ARRAY_SIZE
:
922 array
= &ctx
->Array
.VAO
->VertexAttrib
[VERT_ATTRIB_COLOR0
];
923 v
->value_int
= array
->Format
== GL_BGRA
? GL_BGRA
: array
->Size
;
925 case GL_SECONDARY_COLOR_ARRAY_SIZE
:
926 array
= &ctx
->Array
.VAO
->VertexAttrib
[VERT_ATTRIB_COLOR1
];
927 v
->value_int
= array
->Format
== GL_BGRA
? GL_BGRA
: array
->Size
;
930 /* ARB_copy_buffer */
931 case GL_COPY_READ_BUFFER
:
932 v
->value_int
= ctx
->CopyReadBuffer
->Name
;
934 case GL_COPY_WRITE_BUFFER
:
935 v
->value_int
= ctx
->CopyWriteBuffer
->Name
;
938 case GL_PIXEL_PACK_BUFFER_BINDING_EXT
:
939 v
->value_int
= ctx
->Pack
.BufferObj
->Name
;
941 case GL_PIXEL_UNPACK_BUFFER_BINDING_EXT
:
942 v
->value_int
= ctx
->Unpack
.BufferObj
->Name
;
944 case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING
:
945 v
->value_int
= ctx
->TransformFeedback
.CurrentBuffer
->Name
;
947 case GL_TRANSFORM_FEEDBACK_BUFFER_PAUSED
:
948 v
->value_int
= ctx
->TransformFeedback
.CurrentObject
->Paused
;
950 case GL_TRANSFORM_FEEDBACK_BUFFER_ACTIVE
:
951 v
->value_int
= ctx
->TransformFeedback
.CurrentObject
->Active
;
953 case GL_TRANSFORM_FEEDBACK_BINDING
:
954 v
->value_int
= ctx
->TransformFeedback
.CurrentObject
->Name
;
956 case GL_CURRENT_PROGRAM
:
957 /* The Changelog of the ARB_separate_shader_objects spec says:
959 * 24 25 Jul 2011 pbrown Remove the language erroneously deleting
960 * CURRENT_PROGRAM. In the EXT extension, this
961 * token was aliased to ACTIVE_PROGRAM_EXT, and
962 * was used to indicate the last program set by
963 * either ActiveProgramEXT or UseProgram. In
964 * the ARB extension, the SSO active programs
965 * are now program pipeline object state and
966 * CURRENT_PROGRAM should still be used to query
967 * the last program set by UseProgram (bug 7822).
970 ctx
->Shader
.ActiveProgram
? ctx
->Shader
.ActiveProgram
->Name
: 0;
972 case GL_READ_FRAMEBUFFER_BINDING_EXT
:
973 v
->value_int
= ctx
->ReadBuffer
->Name
;
975 case GL_RENDERBUFFER_BINDING_EXT
:
977 ctx
->CurrentRenderbuffer
? ctx
->CurrentRenderbuffer
->Name
: 0;
979 case GL_POINT_SIZE_ARRAY_BUFFER_BINDING_OES
:
980 v
->value_int
= ctx
->Array
.VAO
->VertexBinding
[VERT_ATTRIB_POINT_SIZE
].BufferObj
->Name
;
984 if (_mesa_get_clamp_fragment_color(ctx
, ctx
->DrawBuffer
))
985 COPY_4FV(v
->value_float_4
, ctx
->Fog
.Color
);
987 COPY_4FV(v
->value_float_4
, ctx
->Fog
.ColorUnclamped
);
989 case GL_COLOR_CLEAR_VALUE
:
990 if (_mesa_get_clamp_fragment_color(ctx
, ctx
->DrawBuffer
)) {
991 v
->value_float_4
[0] = CLAMP(ctx
->Color
.ClearColor
.f
[0], 0.0F
, 1.0F
);
992 v
->value_float_4
[1] = CLAMP(ctx
->Color
.ClearColor
.f
[1], 0.0F
, 1.0F
);
993 v
->value_float_4
[2] = CLAMP(ctx
->Color
.ClearColor
.f
[2], 0.0F
, 1.0F
);
994 v
->value_float_4
[3] = CLAMP(ctx
->Color
.ClearColor
.f
[3], 0.0F
, 1.0F
);
996 COPY_4FV(v
->value_float_4
, ctx
->Color
.ClearColor
.f
);
998 case GL_BLEND_COLOR_EXT
:
999 if (_mesa_get_clamp_fragment_color(ctx
, ctx
->DrawBuffer
))
1000 COPY_4FV(v
->value_float_4
, ctx
->Color
.BlendColor
);
1002 COPY_4FV(v
->value_float_4
, ctx
->Color
.BlendColorUnclamped
);
1004 case GL_ALPHA_TEST_REF
:
1005 if (_mesa_get_clamp_fragment_color(ctx
, ctx
->DrawBuffer
))
1006 v
->value_float
= ctx
->Color
.AlphaRef
;
1008 v
->value_float
= ctx
->Color
.AlphaRefUnclamped
;
1010 case GL_MAX_VERTEX_UNIFORM_VECTORS
:
1011 v
->value_int
= ctx
->Const
.Program
[MESA_SHADER_VERTEX
].MaxUniformComponents
/ 4;
1014 case GL_MAX_FRAGMENT_UNIFORM_VECTORS
:
1015 v
->value_int
= ctx
->Const
.Program
[MESA_SHADER_FRAGMENT
].MaxUniformComponents
/ 4;
1018 /* GL_ARB_texture_buffer_object */
1019 case GL_TEXTURE_BUFFER_ARB
:
1020 v
->value_int
= ctx
->Texture
.BufferObject
->Name
;
1022 case GL_TEXTURE_BINDING_BUFFER_ARB
:
1023 unit
= ctx
->Texture
.CurrentUnit
;
1025 ctx
->Texture
.Unit
[unit
].CurrentTex
[TEXTURE_BUFFER_INDEX
]->Name
;
1027 case GL_TEXTURE_BUFFER_DATA_STORE_BINDING_ARB
:
1029 struct gl_buffer_object
*buf
=
1030 ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
]
1031 .CurrentTex
[TEXTURE_BUFFER_INDEX
]->BufferObject
;
1032 v
->value_int
= buf
? buf
->Name
: 0;
1035 case GL_TEXTURE_BUFFER_FORMAT_ARB
:
1036 v
->value_int
= ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
]
1037 .CurrentTex
[TEXTURE_BUFFER_INDEX
]->BufferObjectFormat
;
1040 /* GL_ARB_sampler_objects */
1041 case GL_SAMPLER_BINDING
:
1043 struct gl_sampler_object
*samp
=
1044 ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
].Sampler
;
1045 v
->value_int
= samp
? samp
->Name
: 0;
1048 /* GL_ARB_uniform_buffer_object */
1049 case GL_UNIFORM_BUFFER_BINDING
:
1050 v
->value_int
= ctx
->UniformBuffer
->Name
;
1052 /* GL_ARB_shader_storage_buffer_object */
1053 case GL_SHADER_STORAGE_BUFFER_BINDING
:
1054 v
->value_int
= ctx
->ShaderStorageBuffer
->Name
;
1056 /* GL_ARB_query_buffer_object */
1057 case GL_QUERY_BUFFER_BINDING
:
1058 v
->value_int
= ctx
->QueryBuffer
->Name
;
1060 /* GL_ARB_timer_query */
1062 if (ctx
->Driver
.GetTimestamp
) {
1063 v
->value_int64
= ctx
->Driver
.GetTimestamp(ctx
);
1066 _mesa_problem(ctx
, "driver doesn't implement GetTimestamp");
1070 case GL_DEBUG_OUTPUT
:
1071 case GL_DEBUG_OUTPUT_SYNCHRONOUS
:
1072 case GL_DEBUG_LOGGED_MESSAGES
:
1073 case GL_DEBUG_NEXT_LOGGED_MESSAGE_LENGTH
:
1074 case GL_DEBUG_GROUP_STACK_DEPTH
:
1075 v
->value_int
= _mesa_get_debug_state_int(ctx
, d
->pname
);
1077 /* GL_ARB_shader_atomic_counters */
1078 case GL_ATOMIC_COUNTER_BUFFER_BINDING
:
1079 if (ctx
->AtomicBuffer
) {
1080 v
->value_int
= ctx
->AtomicBuffer
->Name
;
1085 /* GL_ARB_draw_indirect */
1086 case GL_DRAW_INDIRECT_BUFFER_BINDING
:
1087 v
->value_int
= ctx
->DrawIndirectBuffer
->Name
;
1089 /* GL_ARB_indirect_parameters */
1090 case GL_PARAMETER_BUFFER_BINDING_ARB
:
1091 v
->value_int
= ctx
->ParameterBuffer
->Name
;
1093 /* GL_ARB_separate_shader_objects */
1094 case GL_PROGRAM_PIPELINE_BINDING
:
1095 if (ctx
->Pipeline
.Current
) {
1096 v
->value_int
= ctx
->Pipeline
.Current
->Name
;
1101 /* GL_ARB_compute_shader */
1102 case GL_DISPATCH_INDIRECT_BUFFER_BINDING
:
1103 v
->value_int
= ctx
->DispatchIndirectBuffer
->Name
;
1105 /* GL_ARB_multisample */
1107 v
->value_int
= _mesa_geometric_samples(ctx
->DrawBuffer
);
1109 case GL_SAMPLE_BUFFERS
:
1110 v
->value_int
= _mesa_geometric_samples(ctx
->DrawBuffer
) > 0;
1112 /* GL_ATI_meminfo & GL_NVX_gpu_memory_info */
1113 case GL_VBO_FREE_MEMORY_ATI
:
1114 case GL_TEXTURE_FREE_MEMORY_ATI
:
1115 case GL_RENDERBUFFER_FREE_MEMORY_ATI
:
1116 case GL_GPU_MEMORY_INFO_DEDICATED_VIDMEM_NVX
:
1117 case GL_GPU_MEMORY_INFO_TOTAL_AVAILABLE_MEMORY_NVX
:
1118 case GL_GPU_MEMORY_INFO_CURRENT_AVAILABLE_VIDMEM_NVX
:
1119 case GL_GPU_MEMORY_INFO_EVICTION_COUNT_NVX
:
1120 case GL_GPU_MEMORY_INFO_EVICTED_MEMORY_NVX
:
1122 struct gl_memory_info info
;
1124 ctx
->Driver
.QueryMemoryInfo(ctx
, &info
);
1126 if (d
->pname
== GL_GPU_MEMORY_INFO_DEDICATED_VIDMEM_NVX
)
1127 v
->value_int
= info
.total_device_memory
;
1128 else if (d
->pname
== GL_GPU_MEMORY_INFO_TOTAL_AVAILABLE_MEMORY_NVX
)
1129 v
->value_int
= info
.total_device_memory
+
1130 info
.total_staging_memory
;
1131 else if (d
->pname
== GL_GPU_MEMORY_INFO_CURRENT_AVAILABLE_VIDMEM_NVX
)
1132 v
->value_int
= info
.avail_device_memory
;
1133 else if (d
->pname
== GL_GPU_MEMORY_INFO_EVICTION_COUNT_NVX
)
1134 v
->value_int
= info
.nr_device_memory_evictions
;
1135 else if (d
->pname
== GL_GPU_MEMORY_INFO_EVICTED_MEMORY_NVX
)
1136 v
->value_int
= info
.device_memory_evicted
;
1138 /* ATI free memory enums.
1140 * Since the GPU memory is (usually) page-table based, every two
1141 * consecutive elements are equal. From the GL_ATI_meminfo
1144 * "param[0] - total memory free in the pool
1145 * param[1] - largest available free block in the pool
1146 * param[2] - total auxiliary memory free
1147 * param[3] - largest auxiliary free block"
1149 * All three (VBO, TEXTURE, RENDERBUFFER) queries return
1150 * the same numbers here.
1152 v
->value_int_4
[0] = info
.avail_device_memory
;
1153 v
->value_int_4
[1] = info
.avail_device_memory
;
1154 v
->value_int_4
[2] = info
.avail_staging_memory
;
1155 v
->value_int_4
[3] = info
.avail_staging_memory
;
1163 * Check extra constraints on a struct value_desc descriptor
1165 * If a struct value_desc has a non-NULL extra pointer, it means that
1166 * there are a number of extra constraints to check or actions to
1167 * perform. The extras is just an integer array where each integer
1168 * encode different constraints or actions.
1170 * \param ctx current context
1171 * \param func name of calling glGet*v() function for error reporting
1172 * \param d the struct value_desc that has the extra constraints
1174 * \return GL_FALSE if all of the constraints were not satisfied,
1175 * otherwise GL_TRUE.
1178 check_extra(struct gl_context
*ctx
, const char *func
, const struct value_desc
*d
)
1180 const GLuint version
= ctx
->Version
;
1181 GLboolean api_check
= GL_FALSE
;
1182 GLboolean api_found
= GL_FALSE
;
1185 for (e
= d
->extra
; *e
!= EXTRA_END
; e
++) {
1187 case EXTRA_VERSION_30
:
1188 api_check
= GL_TRUE
;
1190 api_found
= GL_TRUE
;
1192 case EXTRA_VERSION_31
:
1193 api_check
= GL_TRUE
;
1195 api_found
= GL_TRUE
;
1197 case EXTRA_VERSION_32
:
1198 api_check
= GL_TRUE
;
1200 api_found
= GL_TRUE
;
1202 case EXTRA_NEW_FRAG_CLAMP
:
1203 if (ctx
->NewState
& (_NEW_BUFFERS
| _NEW_FRAG_CLAMP
))
1204 _mesa_update_state(ctx
);
1207 api_check
= GL_TRUE
;
1208 if (ctx
->API
== API_OPENGLES2
)
1209 api_found
= GL_TRUE
;
1212 api_check
= GL_TRUE
;
1213 if (_mesa_is_gles3(ctx
))
1214 api_found
= GL_TRUE
;
1216 case EXTRA_API_ES31
:
1217 api_check
= GL_TRUE
;
1218 if (_mesa_is_gles31(ctx
))
1219 api_found
= GL_TRUE
;
1222 api_check
= GL_TRUE
;
1223 if (_mesa_is_desktop_gl(ctx
))
1224 api_found
= GL_TRUE
;
1226 case EXTRA_API_GL_CORE
:
1227 api_check
= GL_TRUE
;
1228 if (ctx
->API
== API_OPENGL_CORE
)
1229 api_found
= GL_TRUE
;
1231 case EXTRA_NEW_BUFFERS
:
1232 if (ctx
->NewState
& _NEW_BUFFERS
)
1233 _mesa_update_state(ctx
);
1235 case EXTRA_FLUSH_CURRENT
:
1236 FLUSH_CURRENT(ctx
, 0);
1238 case EXTRA_VALID_DRAW_BUFFER
:
1239 if (d
->pname
- GL_DRAW_BUFFER0_ARB
>= ctx
->Const
.MaxDrawBuffers
) {
1240 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(draw buffer %u)",
1241 func
, d
->pname
- GL_DRAW_BUFFER0_ARB
);
1245 case EXTRA_VALID_TEXTURE_UNIT
:
1246 if (ctx
->Texture
.CurrentUnit
>= ctx
->Const
.MaxTextureCoordUnits
) {
1247 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(texture %u)",
1248 func
, ctx
->Texture
.CurrentUnit
);
1252 case EXTRA_VALID_CLIP_DISTANCE
:
1253 if (d
->pname
- GL_CLIP_DISTANCE0
>= ctx
->Const
.MaxClipPlanes
) {
1254 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(clip distance %u)",
1255 func
, d
->pname
- GL_CLIP_DISTANCE0
);
1259 case EXTRA_GLSL_130
:
1260 api_check
= GL_TRUE
;
1261 if (ctx
->Const
.GLSLVersion
>= 130)
1262 api_found
= GL_TRUE
;
1264 case EXTRA_EXT_UBO_GS
:
1265 api_check
= GL_TRUE
;
1266 if (ctx
->Extensions
.ARB_uniform_buffer_object
&&
1267 _mesa_has_geometry_shaders(ctx
))
1268 api_found
= GL_TRUE
;
1270 case EXTRA_EXT_ATOMICS_GS
:
1271 api_check
= GL_TRUE
;
1272 if (ctx
->Extensions
.ARB_shader_atomic_counters
&&
1273 _mesa_has_geometry_shaders(ctx
))
1274 api_found
= GL_TRUE
;
1276 case EXTRA_EXT_SHADER_IMAGE_GS
:
1277 api_check
= GL_TRUE
;
1278 if (ctx
->Extensions
.ARB_shader_image_load_store
&&
1279 _mesa_has_geometry_shaders(ctx
))
1280 api_found
= GL_TRUE
;
1282 case EXTRA_EXT_ATOMICS_TESS
:
1283 api_check
= GL_TRUE
;
1284 api_found
= ctx
->Extensions
.ARB_shader_atomic_counters
&&
1285 _mesa_has_tessellation(ctx
);
1287 case EXTRA_EXT_SHADER_IMAGE_TESS
:
1288 api_check
= GL_TRUE
;
1289 api_found
= ctx
->Extensions
.ARB_shader_image_load_store
&&
1290 _mesa_has_tessellation(ctx
);
1292 case EXTRA_EXT_SSBO_GS
:
1293 api_check
= GL_TRUE
;
1294 if (ctx
->Extensions
.ARB_shader_storage_buffer_object
&&
1295 _mesa_has_geometry_shaders(ctx
))
1296 api_found
= GL_TRUE
;
1298 case EXTRA_EXT_FB_NO_ATTACH_GS
:
1299 api_check
= GL_TRUE
;
1300 if (ctx
->Extensions
.ARB_framebuffer_no_attachments
&&
1301 (_mesa_is_desktop_gl(ctx
) ||
1302 _mesa_has_OES_geometry_shader(ctx
)))
1303 api_found
= GL_TRUE
;
1305 case EXTRA_EXT_ES_GS
:
1306 api_check
= GL_TRUE
;
1307 if (_mesa_has_OES_geometry_shader(ctx
))
1308 api_found
= GL_TRUE
;
1312 default: /* *e is a offset into the extension struct */
1313 api_check
= GL_TRUE
;
1314 if (*(GLboolean
*) ((char *) &ctx
->Extensions
+ *e
))
1315 api_found
= GL_TRUE
;
1320 if (api_check
&& !api_found
) {
1321 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=%s)", func
,
1322 _mesa_enum_to_string(d
->pname
));
1329 static const struct value_desc error_value
=
1330 { 0, 0, TYPE_INVALID
, NO_OFFSET
, NO_EXTRA
};
1333 * Find the struct value_desc corresponding to the enum 'pname'.
1335 * We hash the enum value to get an index into the 'table' array,
1336 * which holds the index in the 'values' array of struct value_desc.
1337 * Once we've found the entry, we do the extra checks, if any, then
1338 * look up the value and return a pointer to it.
1340 * If the value has to be computed (for example, it's the result of a
1341 * function call or we need to add 1 to it), we use the tmp 'v' to
1344 * \param func name of glGet*v() func for error reporting
1345 * \param pname the enum value we're looking up
1346 * \param p is were we return the pointer to the value
1347 * \param v a tmp union value variable in the calling glGet*v() function
1349 * \return the struct value_desc corresponding to the enum or a struct
1350 * value_desc of TYPE_INVALID if not found. This lets the calling
1351 * glGet*v() function jump right into a switch statement and
1352 * handle errors there instead of having to check for NULL.
1354 static const struct value_desc
*
1355 find_value(const char *func
, GLenum pname
, void **p
, union value
*v
)
1357 GET_CURRENT_CONTEXT(ctx
);
1358 struct gl_texture_unit
*unit
;
1360 const struct value_desc
*d
;
1364 /* We index into the table_set[] list of per-API hash tables using the API's
1365 * value in the gl_api enum. Since GLES 3 doesn't have an API_OPENGL* enum
1366 * value since it's compatible with GLES2 its entry in table_set[] is at the
1369 STATIC_ASSERT(ARRAY_SIZE(table_set
) == API_OPENGL_LAST
+ 3);
1370 if (_mesa_is_gles3(ctx
)) {
1371 api
= API_OPENGL_LAST
+ 1;
1373 if (_mesa_is_gles31(ctx
)) {
1374 api
= API_OPENGL_LAST
+ 2;
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
);
1453 params
[3] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[3]);
1456 params
[2] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[2]);
1459 params
[1] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[1]);
1462 params
[0] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[0]);
1465 case TYPE_DOUBLEN_2
:
1466 params
[1] = FLOAT_TO_BOOLEAN(((GLdouble
*) p
)[1]);
1468 params
[0] = FLOAT_TO_BOOLEAN(((GLdouble
*) p
)[0]);
1472 params
[3] = INT_TO_BOOLEAN(((GLint
*) p
)[3]);
1474 params
[2] = INT_TO_BOOLEAN(((GLint
*) p
)[2]);
1477 params
[1] = INT_TO_BOOLEAN(((GLint
*) p
)[1]);
1480 params
[0] = INT_TO_BOOLEAN(((GLint
*) p
)[0]);
1484 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1485 params
[i
] = INT_TO_BOOLEAN(v
.value_int_n
.ints
[i
]);
1489 params
[0] = INT64_TO_BOOLEAN(((GLint64
*) p
)[0]);
1493 params
[0] = ((GLboolean
*) p
)[0];
1497 m
= *(GLmatrix
**) p
;
1498 for (i
= 0; i
< 16; i
++)
1499 params
[i
] = FLOAT_TO_BOOLEAN(m
->m
[i
]);
1503 m
= *(GLmatrix
**) p
;
1504 for (i
= 0; i
< 16; i
++)
1505 params
[i
] = FLOAT_TO_BOOLEAN(m
->m
[transpose
[i
]]);
1516 shift
= d
->type
- TYPE_BIT_0
;
1517 params
[0] = (*(GLbitfield
*) p
>> shift
) & 1;
1523 _mesa_GetFloatv(GLenum pname
, GLfloat
*params
)
1525 const struct value_desc
*d
;
1531 d
= find_value("glGetFloatv", pname
, &p
, &v
);
1536 params
[0] = (GLfloat
) d
->offset
;
1541 params
[3] = ((GLfloat
*) p
)[3];
1544 params
[2] = ((GLfloat
*) p
)[2];
1547 params
[1] = ((GLfloat
*) p
)[1];
1550 params
[0] = ((GLfloat
*) p
)[0];
1553 case TYPE_DOUBLEN_2
:
1554 params
[1] = (GLfloat
) (((GLdouble
*) p
)[1]);
1556 params
[0] = (GLfloat
) (((GLdouble
*) p
)[0]);
1560 params
[3] = (GLfloat
) (((GLint
*) p
)[3]);
1562 params
[2] = (GLfloat
) (((GLint
*) p
)[2]);
1565 params
[1] = (GLfloat
) (((GLint
*) p
)[1]);
1568 params
[0] = (GLfloat
) (((GLint
*) p
)[0]);
1572 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1573 params
[i
] = INT_TO_FLOAT(v
.value_int_n
.ints
[i
]);
1577 params
[0] = (GLfloat
) (((GLint64
*) p
)[0]);
1581 params
[0] = BOOLEAN_TO_FLOAT(*(GLboolean
*) p
);
1585 m
= *(GLmatrix
**) p
;
1586 for (i
= 0; i
< 16; i
++)
1587 params
[i
] = m
->m
[i
];
1591 m
= *(GLmatrix
**) p
;
1592 for (i
= 0; i
< 16; i
++)
1593 params
[i
] = m
->m
[transpose
[i
]];
1604 shift
= d
->type
- TYPE_BIT_0
;
1605 params
[0] = BOOLEAN_TO_FLOAT((*(GLbitfield
*) p
>> shift
) & 1);
1611 _mesa_GetIntegerv(GLenum pname
, GLint
*params
)
1613 const struct value_desc
*d
;
1619 d
= find_value("glGetIntegerv", pname
, &p
, &v
);
1624 params
[0] = d
->offset
;
1628 params
[3] = IROUND(((GLfloat
*) p
)[3]);
1630 params
[2] = IROUND(((GLfloat
*) p
)[2]);
1632 params
[1] = IROUND(((GLfloat
*) p
)[1]);
1634 params
[0] = IROUND(((GLfloat
*) p
)[0]);
1638 params
[3] = FLOAT_TO_INT(((GLfloat
*) p
)[3]);
1640 params
[2] = FLOAT_TO_INT(((GLfloat
*) p
)[2]);
1642 params
[1] = FLOAT_TO_INT(((GLfloat
*) p
)[1]);
1644 params
[0] = FLOAT_TO_INT(((GLfloat
*) p
)[0]);
1647 case TYPE_DOUBLEN_2
:
1648 params
[1] = FLOAT_TO_INT(((GLdouble
*) p
)[1]);
1650 params
[0] = FLOAT_TO_INT(((GLdouble
*) p
)[0]);
1654 params
[3] = ((GLint
*) p
)[3];
1656 params
[2] = ((GLint
*) p
)[2];
1659 params
[1] = ((GLint
*) p
)[1];
1662 params
[0] = ((GLint
*) p
)[0];
1666 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1667 params
[i
] = v
.value_int_n
.ints
[i
];
1671 params
[0] = INT64_TO_INT(((GLint64
*) p
)[0]);
1675 params
[0] = BOOLEAN_TO_INT(*(GLboolean
*) p
);
1679 m
= *(GLmatrix
**) p
;
1680 for (i
= 0; i
< 16; i
++)
1681 params
[i
] = FLOAT_TO_INT(m
->m
[i
]);
1685 m
= *(GLmatrix
**) p
;
1686 for (i
= 0; i
< 16; i
++)
1687 params
[i
] = FLOAT_TO_INT(m
->m
[transpose
[i
]]);
1698 shift
= d
->type
- TYPE_BIT_0
;
1699 params
[0] = (*(GLbitfield
*) p
>> shift
) & 1;
1705 _mesa_GetInteger64v(GLenum pname
, GLint64
*params
)
1707 const struct value_desc
*d
;
1713 d
= find_value("glGetInteger64v", pname
, &p
, &v
);
1718 params
[0] = d
->offset
;
1722 params
[3] = IROUND64(((GLfloat
*) p
)[3]);
1724 params
[2] = IROUND64(((GLfloat
*) p
)[2]);
1726 params
[1] = IROUND64(((GLfloat
*) p
)[1]);
1728 params
[0] = IROUND64(((GLfloat
*) p
)[0]);
1732 params
[3] = FLOAT_TO_INT(((GLfloat
*) p
)[3]);
1734 params
[2] = FLOAT_TO_INT(((GLfloat
*) p
)[2]);
1736 params
[1] = FLOAT_TO_INT(((GLfloat
*) p
)[1]);
1738 params
[0] = FLOAT_TO_INT(((GLfloat
*) p
)[0]);
1741 case TYPE_DOUBLEN_2
:
1742 params
[1] = FLOAT_TO_INT(((GLdouble
*) p
)[1]);
1744 params
[0] = FLOAT_TO_INT(((GLdouble
*) p
)[0]);
1748 params
[3] = ((GLint
*) p
)[3];
1750 params
[2] = ((GLint
*) p
)[2];
1753 params
[1] = ((GLint
*) p
)[1];
1756 params
[0] = ((GLint
*) p
)[0];
1760 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1761 params
[i
] = INT_TO_BOOLEAN(v
.value_int_n
.ints
[i
]);
1765 params
[0] = ((GLint64
*) p
)[0];
1769 params
[0] = ((GLboolean
*) p
)[0];
1773 m
= *(GLmatrix
**) p
;
1774 for (i
= 0; i
< 16; i
++)
1775 params
[i
] = FLOAT_TO_INT64(m
->m
[i
]);
1779 m
= *(GLmatrix
**) p
;
1780 for (i
= 0; i
< 16; i
++)
1781 params
[i
] = FLOAT_TO_INT64(m
->m
[transpose
[i
]]);
1792 shift
= d
->type
- TYPE_BIT_0
;
1793 params
[0] = (*(GLbitfield
*) p
>> shift
) & 1;
1799 _mesa_GetDoublev(GLenum pname
, GLdouble
*params
)
1801 const struct value_desc
*d
;
1807 d
= find_value("glGetDoublev", pname
, &p
, &v
);
1812 params
[0] = d
->offset
;
1817 params
[3] = ((GLfloat
*) p
)[3];
1820 params
[2] = ((GLfloat
*) p
)[2];
1823 params
[1] = ((GLfloat
*) p
)[1];
1826 params
[0] = ((GLfloat
*) p
)[0];
1829 case TYPE_DOUBLEN_2
:
1830 params
[1] = ((GLdouble
*) p
)[1];
1832 params
[0] = ((GLdouble
*) p
)[0];
1836 params
[3] = ((GLint
*) p
)[3];
1838 params
[2] = ((GLint
*) p
)[2];
1841 params
[1] = ((GLint
*) p
)[1];
1844 params
[0] = ((GLint
*) p
)[0];
1848 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1849 params
[i
] = v
.value_int_n
.ints
[i
];
1853 params
[0] = (GLdouble
) (((GLint64
*) p
)[0]);
1857 params
[0] = *(GLboolean
*) p
;
1861 m
= *(GLmatrix
**) p
;
1862 for (i
= 0; i
< 16; i
++)
1863 params
[i
] = m
->m
[i
];
1867 m
= *(GLmatrix
**) p
;
1868 for (i
= 0; i
< 16; i
++)
1869 params
[i
] = m
->m
[transpose
[i
]];
1880 shift
= d
->type
- TYPE_BIT_0
;
1881 params
[0] = (*(GLbitfield
*) p
>> shift
) & 1;
1887 * Convert a GL texture binding enum such as GL_TEXTURE_BINDING_2D
1888 * into the corresponding Mesa texture target index.
1889 * \return TEXTURE_x_INDEX or -1 if binding is invalid
1892 tex_binding_to_index(const struct gl_context
*ctx
, GLenum binding
)
1895 case GL_TEXTURE_BINDING_1D
:
1896 return _mesa_is_desktop_gl(ctx
) ? TEXTURE_1D_INDEX
: -1;
1897 case GL_TEXTURE_BINDING_2D
:
1898 return TEXTURE_2D_INDEX
;
1899 case GL_TEXTURE_BINDING_3D
:
1900 return ctx
->API
!= API_OPENGLES
? TEXTURE_3D_INDEX
: -1;
1901 case GL_TEXTURE_BINDING_CUBE_MAP
:
1902 return ctx
->Extensions
.ARB_texture_cube_map
1903 ? TEXTURE_CUBE_INDEX
: -1;
1904 case GL_TEXTURE_BINDING_RECTANGLE
:
1905 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.NV_texture_rectangle
1906 ? TEXTURE_RECT_INDEX
: -1;
1907 case GL_TEXTURE_BINDING_1D_ARRAY
:
1908 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_array
1909 ? TEXTURE_1D_ARRAY_INDEX
: -1;
1910 case GL_TEXTURE_BINDING_2D_ARRAY
:
1911 return (_mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_array
)
1912 || _mesa_is_gles3(ctx
)
1913 ? TEXTURE_2D_ARRAY_INDEX
: -1;
1914 case GL_TEXTURE_BINDING_BUFFER
:
1915 return (_mesa_has_ARB_texture_buffer_object(ctx
) ||
1916 _mesa_has_OES_texture_buffer(ctx
)) ?
1917 TEXTURE_BUFFER_INDEX
: -1;
1918 case GL_TEXTURE_BINDING_CUBE_MAP_ARRAY
:
1919 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.ARB_texture_cube_map_array
1920 ? TEXTURE_CUBE_ARRAY_INDEX
: -1;
1921 case GL_TEXTURE_BINDING_2D_MULTISAMPLE
:
1922 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.ARB_texture_multisample
1923 ? TEXTURE_2D_MULTISAMPLE_INDEX
: -1;
1924 case GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY
:
1925 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.ARB_texture_multisample
1926 ? TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX
: -1;
1932 static enum value_type
1933 find_value_indexed(const char *func
, GLenum pname
, GLuint index
, union value
*v
)
1935 GET_CURRENT_CONTEXT(ctx
);
1940 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1942 if (!ctx
->Extensions
.EXT_draw_buffers2
)
1944 v
->value_int
= (ctx
->Color
.BlendEnabled
>> index
) & 1;
1949 case GL_BLEND_SRC_RGB
:
1950 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1952 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1954 v
->value_int
= ctx
->Color
.Blend
[index
].SrcRGB
;
1956 case GL_BLEND_SRC_ALPHA
:
1957 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1959 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1961 v
->value_int
= ctx
->Color
.Blend
[index
].SrcA
;
1965 case GL_BLEND_DST_RGB
:
1966 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1968 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1970 v
->value_int
= ctx
->Color
.Blend
[index
].DstRGB
;
1972 case GL_BLEND_DST_ALPHA
:
1973 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1975 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1977 v
->value_int
= ctx
->Color
.Blend
[index
].DstA
;
1979 case GL_BLEND_EQUATION_RGB
:
1980 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1982 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1984 v
->value_int
= ctx
->Color
.Blend
[index
].EquationRGB
;
1986 case GL_BLEND_EQUATION_ALPHA
:
1987 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1989 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1991 v
->value_int
= ctx
->Color
.Blend
[index
].EquationA
;
1994 case GL_COLOR_WRITEMASK
:
1995 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1997 if (!ctx
->Extensions
.EXT_draw_buffers2
)
1999 v
->value_int_4
[0] = ctx
->Color
.ColorMask
[index
][RCOMP
] ? 1 : 0;
2000 v
->value_int_4
[1] = ctx
->Color
.ColorMask
[index
][GCOMP
] ? 1 : 0;
2001 v
->value_int_4
[2] = ctx
->Color
.ColorMask
[index
][BCOMP
] ? 1 : 0;
2002 v
->value_int_4
[3] = ctx
->Color
.ColorMask
[index
][ACOMP
] ? 1 : 0;
2005 case GL_SCISSOR_BOX
:
2006 if (index
>= ctx
->Const
.MaxViewports
)
2008 v
->value_int_4
[0] = ctx
->Scissor
.ScissorArray
[index
].X
;
2009 v
->value_int_4
[1] = ctx
->Scissor
.ScissorArray
[index
].Y
;
2010 v
->value_int_4
[2] = ctx
->Scissor
.ScissorArray
[index
].Width
;
2011 v
->value_int_4
[3] = ctx
->Scissor
.ScissorArray
[index
].Height
;
2015 if (index
>= ctx
->Const
.MaxViewports
)
2017 v
->value_float_4
[0] = ctx
->ViewportArray
[index
].X
;
2018 v
->value_float_4
[1] = ctx
->ViewportArray
[index
].Y
;
2019 v
->value_float_4
[2] = ctx
->ViewportArray
[index
].Width
;
2020 v
->value_float_4
[3] = ctx
->ViewportArray
[index
].Height
;
2021 return TYPE_FLOAT_4
;
2023 case GL_DEPTH_RANGE
:
2024 if (index
>= ctx
->Const
.MaxViewports
)
2026 v
->value_double_2
[0] = ctx
->ViewportArray
[index
].Near
;
2027 v
->value_double_2
[1] = ctx
->ViewportArray
[index
].Far
;
2028 return TYPE_DOUBLEN_2
;
2030 case GL_TRANSFORM_FEEDBACK_BUFFER_START
:
2031 if (index
>= ctx
->Const
.MaxTransformFeedbackBuffers
)
2033 if (!ctx
->Extensions
.EXT_transform_feedback
)
2035 v
->value_int64
= ctx
->TransformFeedback
.CurrentObject
->Offset
[index
];
2038 case GL_TRANSFORM_FEEDBACK_BUFFER_SIZE
:
2039 if (index
>= ctx
->Const
.MaxTransformFeedbackBuffers
)
2041 if (!ctx
->Extensions
.EXT_transform_feedback
)
2044 = ctx
->TransformFeedback
.CurrentObject
->RequestedSize
[index
];
2047 case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING
:
2048 if (index
>= ctx
->Const
.MaxTransformFeedbackBuffers
)
2050 if (!ctx
->Extensions
.EXT_transform_feedback
)
2052 v
->value_int
= ctx
->TransformFeedback
.CurrentObject
->BufferNames
[index
];
2055 case GL_UNIFORM_BUFFER_BINDING
:
2056 if (index
>= ctx
->Const
.MaxUniformBufferBindings
)
2058 if (!ctx
->Extensions
.ARB_uniform_buffer_object
)
2060 v
->value_int
= ctx
->UniformBufferBindings
[index
].BufferObject
->Name
;
2063 case GL_UNIFORM_BUFFER_START
:
2064 if (index
>= ctx
->Const
.MaxUniformBufferBindings
)
2066 if (!ctx
->Extensions
.ARB_uniform_buffer_object
)
2068 v
->value_int
= ctx
->UniformBufferBindings
[index
].Offset
< 0 ? 0 :
2069 ctx
->UniformBufferBindings
[index
].Offset
;
2072 case GL_UNIFORM_BUFFER_SIZE
:
2073 if (index
>= ctx
->Const
.MaxUniformBufferBindings
)
2075 if (!ctx
->Extensions
.ARB_uniform_buffer_object
)
2077 v
->value_int
= ctx
->UniformBufferBindings
[index
].Size
< 0 ? 0 :
2078 ctx
->UniformBufferBindings
[index
].Size
;
2081 /* ARB_shader_storage_buffer_object */
2082 case GL_SHADER_STORAGE_BUFFER_BINDING
:
2083 if (!ctx
->Extensions
.ARB_shader_storage_buffer_object
)
2085 if (index
>= ctx
->Const
.MaxShaderStorageBufferBindings
)
2087 v
->value_int
= ctx
->ShaderStorageBufferBindings
[index
].BufferObject
->Name
;
2090 case GL_SHADER_STORAGE_BUFFER_START
:
2091 if (!ctx
->Extensions
.ARB_shader_storage_buffer_object
)
2093 if (index
>= ctx
->Const
.MaxShaderStorageBufferBindings
)
2095 v
->value_int
= ctx
->ShaderStorageBufferBindings
[index
].Offset
< 0 ? 0 :
2096 ctx
->ShaderStorageBufferBindings
[index
].Offset
;
2099 case GL_SHADER_STORAGE_BUFFER_SIZE
:
2100 if (!ctx
->Extensions
.ARB_shader_storage_buffer_object
)
2102 if (index
>= ctx
->Const
.MaxShaderStorageBufferBindings
)
2104 v
->value_int
= ctx
->ShaderStorageBufferBindings
[index
].Size
< 0 ? 0 :
2105 ctx
->ShaderStorageBufferBindings
[index
].Size
;
2108 /* ARB_texture_multisample / GL3.2 */
2109 case GL_SAMPLE_MASK_VALUE
:
2112 if (!ctx
->Extensions
.ARB_texture_multisample
)
2114 v
->value_int
= ctx
->Multisample
.SampleMaskValue
;
2117 case GL_ATOMIC_COUNTER_BUFFER_BINDING
:
2118 if (!ctx
->Extensions
.ARB_shader_atomic_counters
)
2120 if (index
>= ctx
->Const
.MaxAtomicBufferBindings
)
2122 v
->value_int
= ctx
->AtomicBufferBindings
[index
].BufferObject
->Name
;
2125 case GL_ATOMIC_COUNTER_BUFFER_START
:
2126 if (!ctx
->Extensions
.ARB_shader_atomic_counters
)
2128 if (index
>= ctx
->Const
.MaxAtomicBufferBindings
)
2130 v
->value_int64
= ctx
->AtomicBufferBindings
[index
].Offset
;
2133 case GL_ATOMIC_COUNTER_BUFFER_SIZE
:
2134 if (!ctx
->Extensions
.ARB_shader_atomic_counters
)
2136 if (index
>= ctx
->Const
.MaxAtomicBufferBindings
)
2138 v
->value_int64
= ctx
->AtomicBufferBindings
[index
].Size
;
2141 case GL_VERTEX_BINDING_DIVISOR
:
2142 if ((!_mesa_is_desktop_gl(ctx
) || !ctx
->Extensions
.ARB_instanced_arrays
) &&
2143 !_mesa_is_gles31(ctx
))
2145 if (index
>= ctx
->Const
.Program
[MESA_SHADER_VERTEX
].MaxAttribs
)
2147 v
->value_int
= ctx
->Array
.VAO
->VertexBinding
[VERT_ATTRIB_GENERIC(index
)].InstanceDivisor
;
2150 case GL_VERTEX_BINDING_OFFSET
:
2151 if (!_mesa_is_desktop_gl(ctx
) && !_mesa_is_gles31(ctx
))
2153 if (index
>= ctx
->Const
.Program
[MESA_SHADER_VERTEX
].MaxAttribs
)
2155 v
->value_int
= ctx
->Array
.VAO
->VertexBinding
[VERT_ATTRIB_GENERIC(index
)].Offset
;
2158 case GL_VERTEX_BINDING_STRIDE
:
2159 if (!_mesa_is_desktop_gl(ctx
) && !_mesa_is_gles31(ctx
))
2161 if (index
>= ctx
->Const
.Program
[MESA_SHADER_VERTEX
].MaxAttribs
)
2163 v
->value_int
= ctx
->Array
.VAO
->VertexBinding
[VERT_ATTRIB_GENERIC(index
)].Stride
;
2166 case GL_VERTEX_BINDING_BUFFER
:
2167 if (ctx
->API
== API_OPENGLES2
&& ctx
->Version
< 31)
2169 if (index
>= ctx
->Const
.Program
[MESA_SHADER_VERTEX
].MaxAttribs
)
2171 v
->value_int
= ctx
->Array
.VAO
->VertexBinding
[VERT_ATTRIB_GENERIC(index
)].BufferObj
->Name
;
2174 /* ARB_shader_image_load_store */
2175 case GL_IMAGE_BINDING_NAME
: {
2176 struct gl_texture_object
*t
;
2178 if (!ctx
->Extensions
.ARB_shader_image_load_store
)
2180 if (index
>= ctx
->Const
.MaxImageUnits
)
2183 t
= ctx
->ImageUnits
[index
].TexObj
;
2184 v
->value_int
= (t
? t
->Name
: 0);
2188 case GL_IMAGE_BINDING_LEVEL
:
2189 if (!ctx
->Extensions
.ARB_shader_image_load_store
)
2191 if (index
>= ctx
->Const
.MaxImageUnits
)
2194 v
->value_int
= ctx
->ImageUnits
[index
].Level
;
2197 case GL_IMAGE_BINDING_LAYERED
:
2198 if (!ctx
->Extensions
.ARB_shader_image_load_store
)
2200 if (index
>= ctx
->Const
.MaxImageUnits
)
2203 v
->value_int
= ctx
->ImageUnits
[index
].Layered
;
2206 case GL_IMAGE_BINDING_LAYER
:
2207 if (!ctx
->Extensions
.ARB_shader_image_load_store
)
2209 if (index
>= ctx
->Const
.MaxImageUnits
)
2212 v
->value_int
= ctx
->ImageUnits
[index
].Layer
;
2215 case GL_IMAGE_BINDING_ACCESS
:
2216 if (!ctx
->Extensions
.ARB_shader_image_load_store
)
2218 if (index
>= ctx
->Const
.MaxImageUnits
)
2221 v
->value_int
= ctx
->ImageUnits
[index
].Access
;
2224 case GL_IMAGE_BINDING_FORMAT
:
2225 if (!ctx
->Extensions
.ARB_shader_image_load_store
)
2227 if (index
>= ctx
->Const
.MaxImageUnits
)
2230 v
->value_int
= ctx
->ImageUnits
[index
].Format
;
2233 /* ARB_direct_state_access */
2234 case GL_TEXTURE_BINDING_1D
:
2235 case GL_TEXTURE_BINDING_1D_ARRAY
:
2236 case GL_TEXTURE_BINDING_2D
:
2237 case GL_TEXTURE_BINDING_2D_ARRAY
:
2238 case GL_TEXTURE_BINDING_2D_MULTISAMPLE
:
2239 case GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY
:
2240 case GL_TEXTURE_BINDING_3D
:
2241 case GL_TEXTURE_BINDING_BUFFER
:
2242 case GL_TEXTURE_BINDING_CUBE_MAP
:
2243 case GL_TEXTURE_BINDING_CUBE_MAP_ARRAY
:
2244 case GL_TEXTURE_BINDING_RECTANGLE
: {
2247 if (ctx
->API
!= API_OPENGL_CORE
)
2249 target
= tex_binding_to_index(ctx
, pname
);
2252 if (index
>= _mesa_max_tex_unit(ctx
))
2255 v
->value_int
= ctx
->Texture
.Unit
[index
].CurrentTex
[target
]->Name
;
2259 case GL_SAMPLER_BINDING
: {
2260 struct gl_sampler_object
*samp
;
2262 if (ctx
->API
!= API_OPENGL_CORE
)
2264 if (index
>= _mesa_max_tex_unit(ctx
))
2267 samp
= ctx
->Texture
.Unit
[index
].Sampler
;
2268 v
->value_int
= samp
? samp
->Name
: 0;
2272 case GL_MAX_COMPUTE_WORK_GROUP_COUNT
:
2273 if (!_mesa_has_compute_shaders(ctx
))
2277 v
->value_int
= ctx
->Const
.MaxComputeWorkGroupCount
[index
];
2280 case GL_MAX_COMPUTE_WORK_GROUP_SIZE
:
2281 if (!_mesa_has_compute_shaders(ctx
))
2285 v
->value_int
= ctx
->Const
.MaxComputeWorkGroupSize
[index
];
2290 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=%s)", func
,
2291 _mesa_enum_to_string(pname
));
2292 return TYPE_INVALID
;
2294 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(pname=%s)", func
,
2295 _mesa_enum_to_string(pname
));
2296 return TYPE_INVALID
;
2300 _mesa_GetBooleani_v( GLenum pname
, GLuint index
, GLboolean
*params
)
2303 enum value_type type
=
2304 find_value_indexed("glGetBooleani_v", pname
, index
, &v
);
2308 params
[0] = INT_TO_BOOLEAN(v
.value_int
);
2311 params
[0] = INT_TO_BOOLEAN(v
.value_int_4
[0]);
2312 params
[1] = INT_TO_BOOLEAN(v
.value_int_4
[1]);
2313 params
[2] = INT_TO_BOOLEAN(v
.value_int_4
[2]);
2314 params
[3] = INT_TO_BOOLEAN(v
.value_int_4
[3]);
2317 params
[0] = INT64_TO_BOOLEAN(v
.value_int64
);
2320 ; /* nothing - GL error was recorded */
2325 _mesa_GetIntegeri_v( GLenum pname
, GLuint index
, GLint
*params
)
2328 enum value_type type
=
2329 find_value_indexed("glGetIntegeri_v", pname
, index
, &v
);
2334 params
[3] = IROUND(v
.value_float_4
[3]);
2337 params
[2] = IROUND(v
.value_float_4
[2]);
2340 params
[1] = IROUND(v
.value_float_4
[1]);
2343 params
[0] = IROUND(v
.value_float_4
[0]);
2346 case TYPE_DOUBLEN_2
:
2347 params
[1] = IROUND(v
.value_double_2
[1]);
2349 params
[0] = IROUND(v
.value_double_2
[0]);
2353 params
[0] = v
.value_int
;
2356 params
[0] = v
.value_int_4
[0];
2357 params
[1] = v
.value_int_4
[1];
2358 params
[2] = v
.value_int_4
[2];
2359 params
[3] = v
.value_int_4
[3];
2362 params
[0] = INT64_TO_INT(v
.value_int64
);
2365 ; /* nothing - GL error was recorded */
2370 _mesa_GetInteger64i_v( GLenum pname
, GLuint index
, GLint64
*params
)
2373 enum value_type type
=
2374 find_value_indexed("glGetInteger64i_v", pname
, index
, &v
);
2378 params
[0] = v
.value_int
;
2381 params
[0] = v
.value_int_4
[0];
2382 params
[1] = v
.value_int_4
[1];
2383 params
[2] = v
.value_int_4
[2];
2384 params
[3] = v
.value_int_4
[3];
2387 params
[0] = v
.value_int64
;
2390 ; /* nothing - GL error was recorded */
2395 _mesa_GetFloati_v(GLenum pname
, GLuint index
, GLfloat
*params
)
2400 enum value_type type
=
2401 find_value_indexed("glGetFloati_v", pname
, index
, &v
);
2406 params
[3] = v
.value_float_4
[3];
2409 params
[2] = v
.value_float_4
[2];
2412 params
[1] = v
.value_float_4
[1];
2415 params
[0] = v
.value_float_4
[0];
2418 case TYPE_DOUBLEN_2
:
2419 params
[1] = (GLfloat
) v
.value_double_2
[1];
2421 params
[0] = (GLfloat
) v
.value_double_2
[0];
2425 params
[3] = (GLfloat
) v
.value_int_4
[3];
2427 params
[2] = (GLfloat
) v
.value_int_4
[2];
2430 params
[1] = (GLfloat
) v
.value_int_4
[1];
2433 params
[0] = (GLfloat
) v
.value_int_4
[0];
2437 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
2438 params
[i
] = INT_TO_FLOAT(v
.value_int_n
.ints
[i
]);
2442 params
[0] = (GLfloat
) v
.value_int64
;
2446 params
[0] = BOOLEAN_TO_FLOAT(v
.value_bool
);
2450 m
= *(GLmatrix
**) &v
;
2451 for (i
= 0; i
< 16; i
++)
2452 params
[i
] = m
->m
[i
];
2456 m
= *(GLmatrix
**) &v
;
2457 for (i
= 0; i
< 16; i
++)
2458 params
[i
] = m
->m
[transpose
[i
]];
2467 _mesa_GetDoublei_v(GLenum pname
, GLuint index
, GLdouble
*params
)
2472 enum value_type type
=
2473 find_value_indexed("glGetDoublei_v", pname
, index
, &v
);
2478 params
[3] = (GLdouble
) v
.value_float_4
[3];
2481 params
[2] = (GLdouble
) v
.value_float_4
[2];
2484 params
[1] = (GLdouble
) v
.value_float_4
[1];
2487 params
[0] = (GLdouble
) v
.value_float_4
[0];
2490 case TYPE_DOUBLEN_2
:
2491 params
[1] = v
.value_double_2
[1];
2493 params
[0] = v
.value_double_2
[0];
2497 params
[3] = (GLdouble
) v
.value_int_4
[3];
2499 params
[2] = (GLdouble
) v
.value_int_4
[2];
2502 params
[1] = (GLdouble
) v
.value_int_4
[1];
2505 params
[0] = (GLdouble
) v
.value_int_4
[0];
2509 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
2510 params
[i
] = (GLdouble
) INT_TO_FLOAT(v
.value_int_n
.ints
[i
]);
2514 params
[0] = (GLdouble
) v
.value_int64
;
2518 params
[0] = (GLdouble
) BOOLEAN_TO_FLOAT(v
.value_bool
);
2522 m
= *(GLmatrix
**) &v
;
2523 for (i
= 0; i
< 16; i
++)
2524 params
[i
] = (GLdouble
) m
->m
[i
];
2528 m
= *(GLmatrix
**) &v
;
2529 for (i
= 0; i
< 16; i
++)
2530 params
[i
] = (GLdouble
) m
->m
[transpose
[i
]];
2539 _mesa_GetFixedv(GLenum pname
, GLfixed
*params
)
2541 const struct value_desc
*d
;
2547 d
= find_value("glGetDoublev", pname
, &p
, &v
);
2552 params
[0] = INT_TO_FIXED(d
->offset
);
2557 params
[3] = FLOAT_TO_FIXED(((GLfloat
*) p
)[3]);
2560 params
[2] = FLOAT_TO_FIXED(((GLfloat
*) p
)[2]);
2563 params
[1] = FLOAT_TO_FIXED(((GLfloat
*) p
)[1]);
2566 params
[0] = FLOAT_TO_FIXED(((GLfloat
*) p
)[0]);
2569 case TYPE_DOUBLEN_2
:
2570 params
[1] = FLOAT_TO_FIXED(((GLdouble
*) p
)[1]);
2572 params
[0] = FLOAT_TO_FIXED(((GLdouble
*) p
)[0]);
2576 params
[3] = INT_TO_FIXED(((GLint
*) p
)[3]);
2578 params
[2] = INT_TO_FIXED(((GLint
*) p
)[2]);
2581 params
[1] = INT_TO_FIXED(((GLint
*) p
)[1]);
2584 params
[0] = INT_TO_FIXED(((GLint
*) p
)[0]);
2588 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
2589 params
[i
] = INT_TO_FIXED(v
.value_int_n
.ints
[i
]);
2593 params
[0] = ((GLint64
*) p
)[0];
2597 params
[0] = BOOLEAN_TO_FIXED(((GLboolean
*) p
)[0]);
2601 m
= *(GLmatrix
**) p
;
2602 for (i
= 0; i
< 16; i
++)
2603 params
[i
] = FLOAT_TO_FIXED(m
->m
[i
]);
2607 m
= *(GLmatrix
**) p
;
2608 for (i
= 0; i
< 16; i
++)
2609 params
[i
] = FLOAT_TO_FIXED(m
->m
[transpose
[i
]]);
2620 shift
= d
->type
- TYPE_BIT_0
;
2621 params
[0] = BOOLEAN_TO_FIXED((*(GLbitfield
*) p
>> shift
) & 1);