2 * Copyright (C) 2010 Brian Paul All Rights Reserved.
3 * Copyright (C) 2010 Intel Corporation
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
12 * The above copyright notice and this permission notice shall be included
13 * in all copies or substantial portions of the Software.
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
16 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
19 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
20 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
21 * OTHER DEALINGS IN THE SOFTWARE.
23 * Author: Kristian Høgsberg <krh@bitplanet.net>
29 #include "debug_output.h"
33 #include "extensions.h"
38 #include "texcompress.h"
40 #include "framebuffer.h"
41 #include "samplerobj.h"
44 /* This is a table driven implemetation of the glGet*v() functions.
45 * The basic idea is that most getters just look up an int somewhere
46 * in struct gl_context and then convert it to a bool or float according to
47 * which of glGetIntegerv() glGetBooleanv() etc is being called.
48 * Instead of generating code to do this, we can just record the enum
49 * value and the offset into struct gl_context in an array of structs. Then
50 * in glGet*(), we lookup the struct for the enum in question, and use
51 * the offset to get the int we need.
53 * Sometimes we need to look up a float, a boolean, a bit in a
54 * bitfield, a matrix or other types instead, so we need to track the
55 * type of the value in struct gl_context. And sometimes the value isn't in
56 * struct gl_context but in the drawbuffer, the array object, current texture
57 * unit, or maybe it's a computed value. So we need to also track
58 * where or how to find the value. Finally, we sometimes need to
59 * check that one of a number of extensions are enabled, the GL
60 * version or flush or call _mesa_update_state(). This is done by
61 * attaching optional extra information to the value description
62 * struct, it's sort of like an array of opcodes that describe extra
65 * Putting all this together we end up with struct value_desc below,
66 * and with a couple of macros to help, the table of struct value_desc
67 * is about as concise as the specification in the old python script.
70 #define FLOAT_TO_BOOLEAN(X) ( (X) ? GL_TRUE : GL_FALSE )
71 #define FLOAT_TO_FIXED(F) ( ((F) * 65536.0f > INT_MAX) ? INT_MAX : \
72 ((F) * 65536.0f < INT_MIN) ? INT_MIN : \
73 (GLint) ((F) * 65536.0f) )
75 #define INT_TO_BOOLEAN(I) ( (I) ? GL_TRUE : GL_FALSE )
76 #define INT_TO_FIXED(I) ( ((I) > SHRT_MAX) ? INT_MAX : \
77 ((I) < SHRT_MIN) ? INT_MIN : \
78 (GLint) ((I) * 65536) )
80 #define INT64_TO_BOOLEAN(I) ( (I) ? GL_TRUE : GL_FALSE )
81 #define INT64_TO_INT(I) ( (GLint)((I > INT_MAX) ? INT_MAX : ((I < INT_MIN) ? INT_MIN : (I))) )
83 #define BOOLEAN_TO_INT(B) ( (GLint) (B) )
84 #define BOOLEAN_TO_INT64(B) ( (GLint64) (B) )
85 #define BOOLEAN_TO_FLOAT(B) ( (B) ? 1.0F : 0.0F )
86 #define BOOLEAN_TO_FIXED(B) ( (GLint) ((B) ? 1 : 0) << 16 )
88 #define ENUM_TO_INT64(E) ( (GLint64) (E) )
89 #define ENUM_TO_FIXED(E) (E)
125 enum value_location
{
145 EXTRA_NEW_FRAG_CLAMP
,
146 EXTRA_VALID_DRAW_BUFFER
,
147 EXTRA_VALID_TEXTURE_UNIT
,
148 EXTRA_VALID_CLIP_DISTANCE
,
152 EXTRA_EXT_ATOMICS_GS
,
153 EXTRA_EXT_SHADER_IMAGE_GS
,
154 EXTRA_EXT_ATOMICS_TESS
,
155 EXTRA_EXT_SHADER_IMAGE_TESS
,
157 EXTRA_EXT_FB_NO_ATTACH_GS
,
161 #define NO_EXTRA NULL
166 GLubyte location
; /**< enum value_location */
167 GLubyte type
; /**< enum value_type */
174 GLfloat value_float_4
[4];
175 GLdouble value_double_2
[2];
176 GLmatrix
*value_matrix
;
178 GLint value_int_4
[4];
182 /* Sigh, see GL_COMPRESSED_TEXTURE_FORMATS_ARB handling */
186 GLboolean value_bool
;
189 #define BUFFER_FIELD(field, type) \
190 LOC_BUFFER, type, offsetof(struct gl_framebuffer, field)
191 #define CONTEXT_FIELD(field, type) \
192 LOC_CONTEXT, type, offsetof(struct gl_context, field)
193 #define ARRAY_FIELD(field, type) \
194 LOC_ARRAY, type, offsetof(struct gl_vertex_array_object, field)
195 #undef CONST /* already defined through windows.h */
196 #define CONST(value) \
197 LOC_CONTEXT, TYPE_CONST, value
199 #define BUFFER_INT(field) BUFFER_FIELD(field, TYPE_INT)
200 #define BUFFER_ENUM(field) BUFFER_FIELD(field, TYPE_ENUM)
201 #define BUFFER_BOOL(field) BUFFER_FIELD(field, TYPE_BOOLEAN)
203 #define CONTEXT_INT(field) CONTEXT_FIELD(field, TYPE_INT)
204 #define CONTEXT_INT2(field) CONTEXT_FIELD(field, TYPE_INT_2)
205 #define CONTEXT_INT64(field) CONTEXT_FIELD(field, TYPE_INT64)
206 #define CONTEXT_ENUM(field) CONTEXT_FIELD(field, TYPE_ENUM)
207 #define CONTEXT_ENUM2(field) CONTEXT_FIELD(field, TYPE_ENUM_2)
208 #define CONTEXT_BOOL(field) CONTEXT_FIELD(field, TYPE_BOOLEAN)
209 #define CONTEXT_BIT0(field) CONTEXT_FIELD(field, TYPE_BIT_0)
210 #define CONTEXT_BIT1(field) CONTEXT_FIELD(field, TYPE_BIT_1)
211 #define CONTEXT_BIT2(field) CONTEXT_FIELD(field, TYPE_BIT_2)
212 #define CONTEXT_BIT3(field) CONTEXT_FIELD(field, TYPE_BIT_3)
213 #define CONTEXT_BIT4(field) CONTEXT_FIELD(field, TYPE_BIT_4)
214 #define CONTEXT_BIT5(field) CONTEXT_FIELD(field, TYPE_BIT_5)
215 #define CONTEXT_BIT6(field) CONTEXT_FIELD(field, TYPE_BIT_6)
216 #define CONTEXT_BIT7(field) CONTEXT_FIELD(field, TYPE_BIT_7)
217 #define CONTEXT_FLOAT(field) CONTEXT_FIELD(field, TYPE_FLOAT)
218 #define CONTEXT_FLOAT2(field) CONTEXT_FIELD(field, TYPE_FLOAT_2)
219 #define CONTEXT_FLOAT3(field) CONTEXT_FIELD(field, TYPE_FLOAT_3)
220 #define CONTEXT_FLOAT4(field) CONTEXT_FIELD(field, TYPE_FLOAT_4)
221 #define CONTEXT_MATRIX(field) CONTEXT_FIELD(field, TYPE_MATRIX)
222 #define CONTEXT_MATRIX_T(field) CONTEXT_FIELD(field, TYPE_MATRIX_T)
224 #define ARRAY_INT(field) ARRAY_FIELD(field, TYPE_INT)
225 #define ARRAY_ENUM(field) ARRAY_FIELD(field, TYPE_ENUM)
226 #define ARRAY_BOOL(field) ARRAY_FIELD(field, TYPE_BOOLEAN)
229 offsetof(struct gl_extensions, f)
231 #define EXTRA_EXT(e) \
232 static const int extra_##e[] = { \
236 #define EXTRA_EXT2(e1, e2) \
237 static const int extra_##e1##_##e2[] = { \
238 EXT(e1), EXT(e2), EXTRA_END \
241 /* The 'extra' mechanism is a way to specify extra checks (such as
242 * extensions or specific gl versions) or actions (flush current, new
243 * buffers) that we need to do before looking up an enum. We need to
244 * declare them all up front so we can refer to them in the value_desc
247 * Each EXTRA_ will be executed. For EXTRA_* enums of extensions and API
248 * versions, listing multiple ones in an array means an error will be thrown
249 * only if none of them are available. If you need to check for "AND"
250 * behavior, you would need to make a custom EXTRA_ enum.
253 static const int extra_new_buffers
[] = {
258 static const int extra_new_frag_clamp
[] = {
259 EXTRA_NEW_FRAG_CLAMP
,
263 static const int extra_valid_draw_buffer
[] = {
264 EXTRA_VALID_DRAW_BUFFER
,
268 static const int extra_valid_texture_unit
[] = {
269 EXTRA_VALID_TEXTURE_UNIT
,
273 static const int extra_valid_clip_distance
[] = {
274 EXTRA_VALID_CLIP_DISTANCE
,
278 static const int extra_flush_current_valid_texture_unit
[] = {
280 EXTRA_VALID_TEXTURE_UNIT
,
284 static const int extra_flush_current
[] = {
289 static const int extra_EXT_texture_integer_and_new_buffers
[] = {
290 EXT(EXT_texture_integer
),
295 static const int extra_GLSL_130_es3
[] = {
301 static const int extra_texture_buffer_object
[] = {
304 EXT(ARB_texture_buffer_object
),
308 static const int extra_ARB_transform_feedback2_api_es3
[] = {
309 EXT(ARB_transform_feedback2
),
314 static const int extra_ARB_uniform_buffer_object_and_geometry_shader
[] = {
319 static const int extra_ARB_ES2_compatibility_api_es2
[] = {
320 EXT(ARB_ES2_compatibility
),
325 static const int extra_ARB_ES3_compatibility_api_es3
[] = {
326 EXT(ARB_ES3_compatibility
),
331 static const int extra_EXT_framebuffer_sRGB_and_new_buffers
[] = {
332 EXT(EXT_framebuffer_sRGB
),
337 static const int extra_EXT_packed_float
[] = {
338 EXT(EXT_packed_float
),
343 static const int extra_EXT_texture_array_es3
[] = {
344 EXT(EXT_texture_array
),
349 static const int extra_ARB_shader_atomic_counters_and_geometry_shader
[] = {
350 EXTRA_EXT_ATOMICS_GS
,
354 static const int extra_ARB_shader_image_load_store_and_geometry_shader
[] = {
355 EXTRA_EXT_SHADER_IMAGE_GS
,
359 static const int extra_ARB_shader_atomic_counters_and_tessellation
[] = {
360 EXTRA_EXT_ATOMICS_TESS
,
364 static const int extra_ARB_shader_image_load_store_and_tessellation
[] = {
365 EXTRA_EXT_SHADER_IMAGE_TESS
,
369 /* HACK: remove when ARB_compute_shader is actually supported */
370 static const int extra_ARB_compute_shader_es31
[] = {
371 EXT(ARB_compute_shader
),
376 static const int extra_ARB_shader_storage_buffer_object_es31
[] = {
377 EXT(ARB_shader_storage_buffer_object
),
382 static const int extra_ARB_shader_storage_buffer_object_and_geometry_shader
[] = {
387 static const int extra_ARB_shader_image_load_store_shader_storage_buffer_object_es31
[] = {
388 EXT(ARB_shader_image_load_store
),
389 EXT(ARB_shader_storage_buffer_object
),
394 static const int extra_ARB_framebuffer_no_attachments_and_geometry_shader
[] = {
395 EXTRA_EXT_FB_NO_ATTACH_GS
,
399 static const int extra_ARB_viewport_array_or_oes_geometry_shader
[] = {
400 EXT(ARB_viewport_array
),
405 static const int extra_ARB_gpu_shader5_or_oes_geometry_shader
[] = {
406 EXT(ARB_gpu_shader5
),
411 static const int extra_ARB_gpu_shader5_or_OES_sample_variables
[] = {
412 EXT(ARB_gpu_shader5
),
413 EXT(OES_sample_variables
),
416 EXTRA_EXT(ARB_texture_cube_map
);
417 EXTRA_EXT(EXT_texture_array
);
418 EXTRA_EXT(NV_fog_distance
);
419 EXTRA_EXT(EXT_texture_filter_anisotropic
);
420 EXTRA_EXT(NV_point_sprite
);
421 EXTRA_EXT(NV_texture_rectangle
);
422 EXTRA_EXT(EXT_stencil_two_side
);
423 EXTRA_EXT(EXT_depth_bounds_test
);
424 EXTRA_EXT(ARB_depth_clamp
);
425 EXTRA_EXT(ATI_fragment_shader
);
426 EXTRA_EXT(EXT_provoking_vertex
);
427 EXTRA_EXT(ARB_fragment_shader
);
428 EXTRA_EXT(ARB_fragment_program
);
429 EXTRA_EXT2(ARB_framebuffer_object
, EXT_framebuffer_multisample
);
430 EXTRA_EXT(ARB_seamless_cube_map
);
432 EXTRA_EXT(ARB_vertex_shader
);
433 EXTRA_EXT(EXT_transform_feedback
);
434 EXTRA_EXT(ARB_transform_feedback3
);
435 EXTRA_EXT(EXT_pixel_buffer_object
);
436 EXTRA_EXT(ARB_vertex_program
);
437 EXTRA_EXT2(NV_point_sprite
, ARB_point_sprite
);
438 EXTRA_EXT2(ARB_vertex_program
, ARB_fragment_program
);
439 EXTRA_EXT(ARB_color_buffer_float
);
440 EXTRA_EXT(EXT_framebuffer_sRGB
);
441 EXTRA_EXT(OES_EGL_image_external
);
442 EXTRA_EXT(ARB_blend_func_extended
);
443 EXTRA_EXT(ARB_uniform_buffer_object
);
444 EXTRA_EXT(ARB_timer_query
);
445 EXTRA_EXT(ARB_texture_cube_map_array
);
446 EXTRA_EXT(ARB_texture_buffer_range
);
447 EXTRA_EXT(ARB_texture_multisample
);
448 EXTRA_EXT(ARB_texture_gather
);
449 EXTRA_EXT(ARB_shader_atomic_counters
);
450 EXTRA_EXT(ARB_draw_indirect
);
451 EXTRA_EXT(ARB_shader_image_load_store
);
452 EXTRA_EXT(ARB_viewport_array
);
453 EXTRA_EXT(ARB_query_buffer_object
);
454 EXTRA_EXT2(ARB_transform_feedback3
, ARB_gpu_shader5
);
455 EXTRA_EXT(INTEL_performance_query
);
456 EXTRA_EXT(ARB_explicit_uniform_location
);
457 EXTRA_EXT(ARB_clip_control
);
458 EXTRA_EXT(EXT_polygon_offset_clamp
);
459 EXTRA_EXT(ARB_framebuffer_no_attachments
);
460 EXTRA_EXT(ARB_tessellation_shader
);
461 EXTRA_EXT(ARB_shader_subroutine
);
462 EXTRA_EXT(ARB_shader_storage_buffer_object
);
463 EXTRA_EXT(ARB_indirect_parameters
);
464 EXTRA_EXT(ATI_meminfo
);
465 EXTRA_EXT(NVX_gpu_memory_info
);
466 EXTRA_EXT(ARB_cull_distance
);
469 extra_ARB_color_buffer_float_or_glcore
[] = {
470 EXT(ARB_color_buffer_float
),
476 extra_NV_primitive_restart
[] = {
477 EXT(NV_primitive_restart
),
481 static const int extra_version_30
[] = { EXTRA_VERSION_30
, EXTRA_END
};
482 static const int extra_version_31
[] = { EXTRA_VERSION_31
, EXTRA_END
};
483 static const int extra_version_32
[] = { EXTRA_VERSION_32
, EXTRA_END
};
485 static const int extra_gl30_es3
[] = {
491 static const int extra_gl32_es3
[] = {
497 static const int extra_version_32_OES_geometry_shader
[] = {
503 static const int extra_gl40_ARB_sample_shading
[] = {
505 EXT(ARB_sample_shading
),
510 extra_ARB_vertex_program_api_es2
[] = {
511 EXT(ARB_vertex_program
),
516 /* The ReadBuffer get token is valid under either full GL or under
517 * GLES2 if the NV_read_buffer extension is available. */
519 extra_NV_read_buffer_api_gl
[] = {
525 static const int extra_core_ARB_color_buffer_float_and_new_buffers
[] = {
527 EXT(ARB_color_buffer_float
),
532 /* This is the big table describing all the enums we accept in
533 * glGet*v(). The table is partitioned into six parts: enums
534 * understood by all GL APIs (OpenGL, GLES and GLES2), enums shared
535 * between OpenGL and GLES, enums exclusive to GLES, etc for the
536 * remaining combinations. To look up the enums valid in a given API
537 * we will use a hash table specific to that API. These tables are in
538 * turn generated at build time and included through get_hash.h.
541 #include "get_hash.h"
543 /* All we need now is a way to look up the value struct from the enum.
544 * The code generated by gcc for the old generated big switch
545 * statement is a big, balanced, open coded if/else tree, essentially
546 * an unrolled binary search. It would be natural to sort the new
547 * enum table and use bsearch(), but we will use a read-only hash
548 * table instead. bsearch() has a nice guaranteed worst case
549 * performance, but we're also guaranteed to hit that worst case
550 * (log2(n) iterations) for about half the enums. Instead, using an
551 * open addressing hash table, we can find the enum on the first try
552 * for 80% of the enums, 1 collision for 10% and never more than 5
553 * collisions for any enum (typical numbers). And the code is very
554 * simple, even though it feels a little magic. */
558 print_table_stats(int api
)
560 int i
, j
, collisions
[11], count
, hash
, mask
;
561 const struct value_desc
*d
;
562 const char *api_names
[] = {
563 [API_OPENGL_COMPAT
] = "GL",
564 [API_OPENGL_CORE
] = "GL_CORE",
565 [API_OPENGLES
] = "GLES",
566 [API_OPENGLES2
] = "GLES2",
568 const char *api_name
;
570 api_name
= api
< ARRAY_SIZE(api_names
) ? api_names
[api
] : "N/A";
572 mask
= ARRAY_SIZE(table(api
)) - 1;
573 memset(collisions
, 0, sizeof collisions
);
575 for (i
= 0; i
< ARRAY_SIZE(table(api
)); i
++) {
579 d
= &values
[table(api
)[i
]];
580 hash
= (d
->pname
* prime_factor
);
583 if (values
[table(api
)[hash
& mask
]].pname
== d
->pname
)
595 printf("number of enums for %s: %d (total %ld)\n",
596 api_name
, count
, ARRAY_SIZE(values
));
597 for (i
= 0; i
< ARRAY_SIZE(collisions
) - 1; i
++)
598 if (collisions
[i
] > 0)
599 printf(" %d enums with %d %scollisions\n",
600 collisions
[i
], i
, i
== 10 ? "or more " : "");
605 * Initialize the enum hash for a given API
607 * This is called from one_time_init() to insert the enum values that
608 * are valid for the API in question into the enum hash table.
610 * \param the current context, for determining the API in question
612 void _mesa_init_get_hash(struct gl_context
*ctx
)
615 print_table_stats(ctx
->API
);
622 * Handle irregular enums
624 * Some values don't conform to the "well-known type at context
625 * pointer + offset" pattern, so we have this function to catch all
626 * the corner cases. Typically, it's a computed value or a one-off
627 * pointer to a custom struct or something.
629 * In this case we can't return a pointer to the value, so we'll have
630 * to use the temporary variable 'v' declared back in the calling
631 * glGet*v() function to store the result.
633 * \param ctx the current context
634 * \param d the struct value_desc that describes the enum
635 * \param v pointer to the tmp declared in the calling glGet*v() function
638 find_custom_value(struct gl_context
*ctx
, const struct value_desc
*d
, union value
*v
)
640 struct gl_buffer_object
**buffer_obj
;
641 struct gl_vertex_attrib_array
*array
;
645 case GL_MAJOR_VERSION
:
646 v
->value_int
= ctx
->Version
/ 10;
648 case GL_MINOR_VERSION
:
649 v
->value_int
= ctx
->Version
% 10;
655 case GL_TEXTURE_CUBE_MAP
:
656 case GL_TEXTURE_RECTANGLE_NV
:
657 case GL_TEXTURE_EXTERNAL_OES
:
658 v
->value_bool
= _mesa_IsEnabled(d
->pname
);
661 case GL_LINE_STIPPLE_PATTERN
:
662 /* This is the only GLushort, special case it here by promoting
663 * to an int rather than introducing a new type. */
664 v
->value_int
= ctx
->Line
.StipplePattern
;
667 case GL_CURRENT_RASTER_TEXTURE_COORDS
:
668 unit
= ctx
->Texture
.CurrentUnit
;
669 v
->value_float_4
[0] = ctx
->Current
.RasterTexCoords
[unit
][0];
670 v
->value_float_4
[1] = ctx
->Current
.RasterTexCoords
[unit
][1];
671 v
->value_float_4
[2] = ctx
->Current
.RasterTexCoords
[unit
][2];
672 v
->value_float_4
[3] = ctx
->Current
.RasterTexCoords
[unit
][3];
675 case GL_CURRENT_TEXTURE_COORDS
:
676 unit
= ctx
->Texture
.CurrentUnit
;
677 v
->value_float_4
[0] = ctx
->Current
.Attrib
[VERT_ATTRIB_TEX0
+ unit
][0];
678 v
->value_float_4
[1] = ctx
->Current
.Attrib
[VERT_ATTRIB_TEX0
+ unit
][1];
679 v
->value_float_4
[2] = ctx
->Current
.Attrib
[VERT_ATTRIB_TEX0
+ unit
][2];
680 v
->value_float_4
[3] = ctx
->Current
.Attrib
[VERT_ATTRIB_TEX0
+ unit
][3];
683 case GL_COLOR_WRITEMASK
:
684 v
->value_int_4
[0] = ctx
->Color
.ColorMask
[0][RCOMP
] ? 1 : 0;
685 v
->value_int_4
[1] = ctx
->Color
.ColorMask
[0][GCOMP
] ? 1 : 0;
686 v
->value_int_4
[2] = ctx
->Color
.ColorMask
[0][BCOMP
] ? 1 : 0;
687 v
->value_int_4
[3] = ctx
->Color
.ColorMask
[0][ACOMP
] ? 1 : 0;
691 v
->value_bool
= ctx
->Current
.Attrib
[VERT_ATTRIB_EDGEFLAG
][0] == 1.0F
;
695 v
->value_enum
= ctx
->ReadBuffer
->ColorReadBuffer
;
698 case GL_MAP2_GRID_DOMAIN
:
699 v
->value_float_4
[0] = ctx
->Eval
.MapGrid2u1
;
700 v
->value_float_4
[1] = ctx
->Eval
.MapGrid2u2
;
701 v
->value_float_4
[2] = ctx
->Eval
.MapGrid2v1
;
702 v
->value_float_4
[3] = ctx
->Eval
.MapGrid2v2
;
705 case GL_TEXTURE_STACK_DEPTH
:
706 unit
= ctx
->Texture
.CurrentUnit
;
707 v
->value_int
= ctx
->TextureMatrixStack
[unit
].Depth
+ 1;
709 case GL_TEXTURE_MATRIX
:
710 unit
= ctx
->Texture
.CurrentUnit
;
711 v
->value_matrix
= ctx
->TextureMatrixStack
[unit
].Top
;
714 case GL_TEXTURE_COORD_ARRAY
:
715 case GL_TEXTURE_COORD_ARRAY_SIZE
:
716 case GL_TEXTURE_COORD_ARRAY_TYPE
:
717 case GL_TEXTURE_COORD_ARRAY_STRIDE
:
718 array
= &ctx
->Array
.VAO
->VertexAttrib
[VERT_ATTRIB_TEX(ctx
->Array
.ActiveTexture
)];
719 v
->value_int
= *(GLuint
*) ((char *) array
+ d
->offset
);
722 case GL_ACTIVE_TEXTURE_ARB
:
723 v
->value_int
= GL_TEXTURE0_ARB
+ ctx
->Texture
.CurrentUnit
;
725 case GL_CLIENT_ACTIVE_TEXTURE_ARB
:
726 v
->value_int
= GL_TEXTURE0_ARB
+ ctx
->Array
.ActiveTexture
;
729 case GL_MODELVIEW_STACK_DEPTH
:
730 case GL_PROJECTION_STACK_DEPTH
:
731 v
->value_int
= *(GLint
*) ((char *) ctx
+ d
->offset
) + 1;
734 case GL_MAX_TEXTURE_SIZE
:
735 case GL_MAX_3D_TEXTURE_SIZE
:
736 case GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB
:
737 p
= (GLuint
*) ((char *) ctx
+ d
->offset
);
738 v
->value_int
= 1 << (*p
- 1);
742 v
->value_int_4
[0] = ctx
->Scissor
.ScissorArray
[0].X
;
743 v
->value_int_4
[1] = ctx
->Scissor
.ScissorArray
[0].Y
;
744 v
->value_int_4
[2] = ctx
->Scissor
.ScissorArray
[0].Width
;
745 v
->value_int_4
[3] = ctx
->Scissor
.ScissorArray
[0].Height
;
748 case GL_SCISSOR_TEST
:
749 v
->value_bool
= ctx
->Scissor
.EnableFlags
& 1;
754 ctx
->ListState
.CurrentList
? ctx
->ListState
.CurrentList
->Name
: 0;
757 if (!ctx
->CompileFlag
)
759 else if (ctx
->ExecuteFlag
)
760 v
->value_enum
= GL_COMPILE_AND_EXECUTE
;
762 v
->value_enum
= GL_COMPILE
;
766 v
->value_float_4
[0] = ctx
->ViewportArray
[0].X
;
767 v
->value_float_4
[1] = ctx
->ViewportArray
[0].Y
;
768 v
->value_float_4
[2] = ctx
->ViewportArray
[0].Width
;
769 v
->value_float_4
[3] = ctx
->ViewportArray
[0].Height
;
773 v
->value_double_2
[0] = ctx
->ViewportArray
[0].Near
;
774 v
->value_double_2
[1] = ctx
->ViewportArray
[0].Far
;
777 case GL_ACTIVE_STENCIL_FACE_EXT
:
778 v
->value_enum
= ctx
->Stencil
.ActiveFace
? GL_BACK
: GL_FRONT
;
781 case GL_STENCIL_FAIL
:
782 v
->value_enum
= ctx
->Stencil
.FailFunc
[ctx
->Stencil
.ActiveFace
];
784 case GL_STENCIL_FUNC
:
785 v
->value_enum
= ctx
->Stencil
.Function
[ctx
->Stencil
.ActiveFace
];
787 case GL_STENCIL_PASS_DEPTH_FAIL
:
788 v
->value_enum
= ctx
->Stencil
.ZFailFunc
[ctx
->Stencil
.ActiveFace
];
790 case GL_STENCIL_PASS_DEPTH_PASS
:
791 v
->value_enum
= ctx
->Stencil
.ZPassFunc
[ctx
->Stencil
.ActiveFace
];
794 v
->value_int
= _mesa_get_stencil_ref(ctx
, ctx
->Stencil
.ActiveFace
);
796 case GL_STENCIL_BACK_REF
:
797 v
->value_int
= _mesa_get_stencil_ref(ctx
, 1);
799 case GL_STENCIL_VALUE_MASK
:
800 v
->value_int
= ctx
->Stencil
.ValueMask
[ctx
->Stencil
.ActiveFace
];
802 case GL_STENCIL_WRITEMASK
:
803 v
->value_int
= ctx
->Stencil
.WriteMask
[ctx
->Stencil
.ActiveFace
];
806 case GL_NUM_EXTENSIONS
:
807 v
->value_int
= _mesa_get_extension_count(ctx
);
810 case GL_IMPLEMENTATION_COLOR_READ_TYPE_OES
:
811 v
->value_int
= _mesa_get_color_read_type(ctx
);
813 case GL_IMPLEMENTATION_COLOR_READ_FORMAT_OES
:
814 v
->value_int
= _mesa_get_color_read_format(ctx
);
817 case GL_CURRENT_MATRIX_STACK_DEPTH_ARB
:
818 v
->value_int
= ctx
->CurrentStack
->Depth
+ 1;
820 case GL_CURRENT_MATRIX_ARB
:
821 case GL_TRANSPOSE_CURRENT_MATRIX_ARB
:
822 v
->value_matrix
= ctx
->CurrentStack
->Top
;
825 case GL_NUM_COMPRESSED_TEXTURE_FORMATS_ARB
:
826 v
->value_int
= _mesa_get_compressed_formats(ctx
, NULL
);
828 case GL_COMPRESSED_TEXTURE_FORMATS_ARB
:
830 _mesa_get_compressed_formats(ctx
, v
->value_int_n
.ints
);
831 assert(v
->value_int_n
.n
<= (int) ARRAY_SIZE(v
->value_int_n
.ints
));
834 case GL_MAX_VARYING_FLOATS_ARB
:
835 v
->value_int
= ctx
->Const
.MaxVarying
* 4;
838 /* Various object names */
840 case GL_TEXTURE_BINDING_1D
:
841 case GL_TEXTURE_BINDING_2D
:
842 case GL_TEXTURE_BINDING_3D
:
843 case GL_TEXTURE_BINDING_1D_ARRAY_EXT
:
844 case GL_TEXTURE_BINDING_2D_ARRAY_EXT
:
845 case GL_TEXTURE_BINDING_CUBE_MAP_ARB
:
846 case GL_TEXTURE_BINDING_RECTANGLE_NV
:
847 case GL_TEXTURE_BINDING_EXTERNAL_OES
:
848 case GL_TEXTURE_BINDING_CUBE_MAP_ARRAY
:
849 case GL_TEXTURE_BINDING_2D_MULTISAMPLE
:
850 case GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY
:
851 unit
= ctx
->Texture
.CurrentUnit
;
853 ctx
->Texture
.Unit
[unit
].CurrentTex
[d
->offset
]->Name
;
856 /* GL_EXT_packed_float */
857 case GL_RGBA_SIGNED_COMPONENTS_EXT
:
859 /* Note: we only check the 0th color attachment. */
860 const struct gl_renderbuffer
*rb
=
861 ctx
->DrawBuffer
->_ColorDrawBuffers
[0];
862 if (rb
&& _mesa_is_format_signed(rb
->Format
)) {
863 /* Issue 17 of GL_EXT_packed_float: If a component (such as
864 * alpha) has zero bits, the component should not be considered
865 * signed and so the bit for the respective component should be
869 _mesa_get_format_bits(rb
->Format
, GL_RED_BITS
);
871 _mesa_get_format_bits(rb
->Format
, GL_GREEN_BITS
);
873 _mesa_get_format_bits(rb
->Format
, GL_BLUE_BITS
);
875 _mesa_get_format_bits(rb
->Format
, GL_ALPHA_BITS
);
877 _mesa_get_format_bits(rb
->Format
, GL_TEXTURE_LUMINANCE_SIZE
);
879 _mesa_get_format_bits(rb
->Format
, GL_TEXTURE_INTENSITY_SIZE
);
881 v
->value_int_4
[0] = r_bits
+ l_bits
+ i_bits
> 0;
882 v
->value_int_4
[1] = g_bits
+ l_bits
+ i_bits
> 0;
883 v
->value_int_4
[2] = b_bits
+ l_bits
+ i_bits
> 0;
884 v
->value_int_4
[3] = a_bits
+ i_bits
> 0;
890 v
->value_int_4
[3] = 0;
895 /* GL_ARB_vertex_buffer_object */
896 case GL_VERTEX_ARRAY_BUFFER_BINDING_ARB
:
897 case GL_NORMAL_ARRAY_BUFFER_BINDING_ARB
:
898 case GL_COLOR_ARRAY_BUFFER_BINDING_ARB
:
899 case GL_INDEX_ARRAY_BUFFER_BINDING_ARB
:
900 case GL_EDGE_FLAG_ARRAY_BUFFER_BINDING_ARB
:
901 case GL_SECONDARY_COLOR_ARRAY_BUFFER_BINDING_ARB
:
902 case GL_FOG_COORDINATE_ARRAY_BUFFER_BINDING_ARB
:
903 buffer_obj
= (struct gl_buffer_object
**)
904 ((char *) ctx
->Array
.VAO
+ d
->offset
);
905 v
->value_int
= (*buffer_obj
)->Name
;
907 case GL_ARRAY_BUFFER_BINDING_ARB
:
908 v
->value_int
= ctx
->Array
.ArrayBufferObj
->Name
;
910 case GL_TEXTURE_COORD_ARRAY_BUFFER_BINDING_ARB
:
912 ctx
->Array
.VAO
->VertexBinding
[VERT_ATTRIB_TEX(ctx
->Array
.ActiveTexture
)].BufferObj
->Name
;
914 case GL_ELEMENT_ARRAY_BUFFER_BINDING_ARB
:
915 v
->value_int
= ctx
->Array
.VAO
->IndexBufferObj
->Name
;
918 /* ARB_vertex_array_bgra */
919 case GL_COLOR_ARRAY_SIZE
:
920 array
= &ctx
->Array
.VAO
->VertexAttrib
[VERT_ATTRIB_COLOR0
];
921 v
->value_int
= array
->Format
== GL_BGRA
? GL_BGRA
: array
->Size
;
923 case GL_SECONDARY_COLOR_ARRAY_SIZE
:
924 array
= &ctx
->Array
.VAO
->VertexAttrib
[VERT_ATTRIB_COLOR1
];
925 v
->value_int
= array
->Format
== GL_BGRA
? GL_BGRA
: array
->Size
;
928 /* ARB_copy_buffer */
929 case GL_COPY_READ_BUFFER
:
930 v
->value_int
= ctx
->CopyReadBuffer
->Name
;
932 case GL_COPY_WRITE_BUFFER
:
933 v
->value_int
= ctx
->CopyWriteBuffer
->Name
;
936 case GL_PIXEL_PACK_BUFFER_BINDING_EXT
:
937 v
->value_int
= ctx
->Pack
.BufferObj
->Name
;
939 case GL_PIXEL_UNPACK_BUFFER_BINDING_EXT
:
940 v
->value_int
= ctx
->Unpack
.BufferObj
->Name
;
942 case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING
:
943 v
->value_int
= ctx
->TransformFeedback
.CurrentBuffer
->Name
;
945 case GL_TRANSFORM_FEEDBACK_BUFFER_PAUSED
:
946 v
->value_int
= ctx
->TransformFeedback
.CurrentObject
->Paused
;
948 case GL_TRANSFORM_FEEDBACK_BUFFER_ACTIVE
:
949 v
->value_int
= ctx
->TransformFeedback
.CurrentObject
->Active
;
951 case GL_TRANSFORM_FEEDBACK_BINDING
:
952 v
->value_int
= ctx
->TransformFeedback
.CurrentObject
->Name
;
954 case GL_CURRENT_PROGRAM
:
955 /* The Changelog of the ARB_separate_shader_objects spec says:
957 * 24 25 Jul 2011 pbrown Remove the language erroneously deleting
958 * CURRENT_PROGRAM. In the EXT extension, this
959 * token was aliased to ACTIVE_PROGRAM_EXT, and
960 * was used to indicate the last program set by
961 * either ActiveProgramEXT or UseProgram. In
962 * the ARB extension, the SSO active programs
963 * are now program pipeline object state and
964 * CURRENT_PROGRAM should still be used to query
965 * the last program set by UseProgram (bug 7822).
968 ctx
->Shader
.ActiveProgram
? ctx
->Shader
.ActiveProgram
->Name
: 0;
970 case GL_READ_FRAMEBUFFER_BINDING_EXT
:
971 v
->value_int
= ctx
->ReadBuffer
->Name
;
973 case GL_RENDERBUFFER_BINDING_EXT
:
975 ctx
->CurrentRenderbuffer
? ctx
->CurrentRenderbuffer
->Name
: 0;
977 case GL_POINT_SIZE_ARRAY_BUFFER_BINDING_OES
:
978 v
->value_int
= ctx
->Array
.VAO
->VertexBinding
[VERT_ATTRIB_POINT_SIZE
].BufferObj
->Name
;
982 if (_mesa_get_clamp_fragment_color(ctx
, ctx
->DrawBuffer
))
983 COPY_4FV(v
->value_float_4
, ctx
->Fog
.Color
);
985 COPY_4FV(v
->value_float_4
, ctx
->Fog
.ColorUnclamped
);
987 case GL_COLOR_CLEAR_VALUE
:
988 if (_mesa_get_clamp_fragment_color(ctx
, ctx
->DrawBuffer
)) {
989 v
->value_float_4
[0] = CLAMP(ctx
->Color
.ClearColor
.f
[0], 0.0F
, 1.0F
);
990 v
->value_float_4
[1] = CLAMP(ctx
->Color
.ClearColor
.f
[1], 0.0F
, 1.0F
);
991 v
->value_float_4
[2] = CLAMP(ctx
->Color
.ClearColor
.f
[2], 0.0F
, 1.0F
);
992 v
->value_float_4
[3] = CLAMP(ctx
->Color
.ClearColor
.f
[3], 0.0F
, 1.0F
);
994 COPY_4FV(v
->value_float_4
, ctx
->Color
.ClearColor
.f
);
996 case GL_BLEND_COLOR_EXT
:
997 if (_mesa_get_clamp_fragment_color(ctx
, ctx
->DrawBuffer
))
998 COPY_4FV(v
->value_float_4
, ctx
->Color
.BlendColor
);
1000 COPY_4FV(v
->value_float_4
, ctx
->Color
.BlendColorUnclamped
);
1002 case GL_ALPHA_TEST_REF
:
1003 if (_mesa_get_clamp_fragment_color(ctx
, ctx
->DrawBuffer
))
1004 v
->value_float
= ctx
->Color
.AlphaRef
;
1006 v
->value_float
= ctx
->Color
.AlphaRefUnclamped
;
1008 case GL_MAX_VERTEX_UNIFORM_VECTORS
:
1009 v
->value_int
= ctx
->Const
.Program
[MESA_SHADER_VERTEX
].MaxUniformComponents
/ 4;
1012 case GL_MAX_FRAGMENT_UNIFORM_VECTORS
:
1013 v
->value_int
= ctx
->Const
.Program
[MESA_SHADER_FRAGMENT
].MaxUniformComponents
/ 4;
1016 /* GL_ARB_texture_buffer_object */
1017 case GL_TEXTURE_BUFFER_ARB
:
1018 v
->value_int
= ctx
->Texture
.BufferObject
->Name
;
1020 case GL_TEXTURE_BINDING_BUFFER_ARB
:
1021 unit
= ctx
->Texture
.CurrentUnit
;
1023 ctx
->Texture
.Unit
[unit
].CurrentTex
[TEXTURE_BUFFER_INDEX
]->Name
;
1025 case GL_TEXTURE_BUFFER_DATA_STORE_BINDING_ARB
:
1027 struct gl_buffer_object
*buf
=
1028 ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
]
1029 .CurrentTex
[TEXTURE_BUFFER_INDEX
]->BufferObject
;
1030 v
->value_int
= buf
? buf
->Name
: 0;
1033 case GL_TEXTURE_BUFFER_FORMAT_ARB
:
1034 v
->value_int
= ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
]
1035 .CurrentTex
[TEXTURE_BUFFER_INDEX
]->BufferObjectFormat
;
1038 /* GL_ARB_sampler_objects */
1039 case GL_SAMPLER_BINDING
:
1041 struct gl_sampler_object
*samp
=
1042 ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
].Sampler
;
1043 v
->value_int
= samp
? samp
->Name
: 0;
1046 /* GL_ARB_uniform_buffer_object */
1047 case GL_UNIFORM_BUFFER_BINDING
:
1048 v
->value_int
= ctx
->UniformBuffer
->Name
;
1050 /* GL_ARB_shader_storage_buffer_object */
1051 case GL_SHADER_STORAGE_BUFFER_BINDING
:
1052 v
->value_int
= ctx
->ShaderStorageBuffer
->Name
;
1054 /* GL_ARB_query_buffer_object */
1055 case GL_QUERY_BUFFER_BINDING
:
1056 v
->value_int
= ctx
->QueryBuffer
->Name
;
1058 /* GL_ARB_timer_query */
1060 if (ctx
->Driver
.GetTimestamp
) {
1061 v
->value_int64
= ctx
->Driver
.GetTimestamp(ctx
);
1064 _mesa_problem(ctx
, "driver doesn't implement GetTimestamp");
1068 case GL_DEBUG_OUTPUT
:
1069 case GL_DEBUG_OUTPUT_SYNCHRONOUS
:
1070 case GL_DEBUG_LOGGED_MESSAGES
:
1071 case GL_DEBUG_NEXT_LOGGED_MESSAGE_LENGTH
:
1072 case GL_DEBUG_GROUP_STACK_DEPTH
:
1073 v
->value_int
= _mesa_get_debug_state_int(ctx
, d
->pname
);
1075 /* GL_ARB_shader_atomic_counters */
1076 case GL_ATOMIC_COUNTER_BUFFER_BINDING
:
1077 if (ctx
->AtomicBuffer
) {
1078 v
->value_int
= ctx
->AtomicBuffer
->Name
;
1083 /* GL_ARB_draw_indirect */
1084 case GL_DRAW_INDIRECT_BUFFER_BINDING
:
1085 v
->value_int
= ctx
->DrawIndirectBuffer
->Name
;
1087 /* GL_ARB_indirect_parameters */
1088 case GL_PARAMETER_BUFFER_BINDING_ARB
:
1089 v
->value_int
= ctx
->ParameterBuffer
->Name
;
1091 /* GL_ARB_separate_shader_objects */
1092 case GL_PROGRAM_PIPELINE_BINDING
:
1093 if (ctx
->Pipeline
.Current
) {
1094 v
->value_int
= ctx
->Pipeline
.Current
->Name
;
1099 /* GL_ARB_compute_shader */
1100 case GL_DISPATCH_INDIRECT_BUFFER_BINDING
:
1101 v
->value_int
= ctx
->DispatchIndirectBuffer
->Name
;
1103 /* GL_ARB_multisample */
1105 v
->value_int
= _mesa_geometric_samples(ctx
->DrawBuffer
);
1107 case GL_SAMPLE_BUFFERS
:
1108 v
->value_int
= _mesa_geometric_samples(ctx
->DrawBuffer
) > 0;
1110 /* GL_ATI_meminfo & GL_NVX_gpu_memory_info */
1111 case GL_VBO_FREE_MEMORY_ATI
:
1112 case GL_TEXTURE_FREE_MEMORY_ATI
:
1113 case GL_RENDERBUFFER_FREE_MEMORY_ATI
:
1114 case GL_GPU_MEMORY_INFO_DEDICATED_VIDMEM_NVX
:
1115 case GL_GPU_MEMORY_INFO_TOTAL_AVAILABLE_MEMORY_NVX
:
1116 case GL_GPU_MEMORY_INFO_CURRENT_AVAILABLE_VIDMEM_NVX
:
1117 case GL_GPU_MEMORY_INFO_EVICTION_COUNT_NVX
:
1118 case GL_GPU_MEMORY_INFO_EVICTED_MEMORY_NVX
:
1120 struct gl_memory_info info
;
1122 ctx
->Driver
.QueryMemoryInfo(ctx
, &info
);
1124 if (d
->pname
== GL_GPU_MEMORY_INFO_DEDICATED_VIDMEM_NVX
)
1125 v
->value_int
= info
.total_device_memory
;
1126 else if (d
->pname
== GL_GPU_MEMORY_INFO_TOTAL_AVAILABLE_MEMORY_NVX
)
1127 v
->value_int
= info
.total_device_memory
+
1128 info
.total_staging_memory
;
1129 else if (d
->pname
== GL_GPU_MEMORY_INFO_CURRENT_AVAILABLE_VIDMEM_NVX
)
1130 v
->value_int
= info
.avail_device_memory
;
1131 else if (d
->pname
== GL_GPU_MEMORY_INFO_EVICTION_COUNT_NVX
)
1132 v
->value_int
= info
.nr_device_memory_evictions
;
1133 else if (d
->pname
== GL_GPU_MEMORY_INFO_EVICTED_MEMORY_NVX
)
1134 v
->value_int
= info
.device_memory_evicted
;
1136 /* ATI free memory enums.
1138 * Since the GPU memory is (usually) page-table based, every two
1139 * consecutive elements are equal. From the GL_ATI_meminfo
1142 * "param[0] - total memory free in the pool
1143 * param[1] - largest available free block in the pool
1144 * param[2] - total auxiliary memory free
1145 * param[3] - largest auxiliary free block"
1147 * All three (VBO, TEXTURE, RENDERBUFFER) queries return
1148 * the same numbers here.
1150 v
->value_int_4
[0] = info
.avail_device_memory
;
1151 v
->value_int_4
[1] = info
.avail_device_memory
;
1152 v
->value_int_4
[2] = info
.avail_staging_memory
;
1153 v
->value_int_4
[3] = info
.avail_staging_memory
;
1161 * Check extra constraints on a struct value_desc descriptor
1163 * If a struct value_desc has a non-NULL extra pointer, it means that
1164 * there are a number of extra constraints to check or actions to
1165 * perform. The extras is just an integer array where each integer
1166 * encode different constraints or actions.
1168 * \param ctx current context
1169 * \param func name of calling glGet*v() function for error reporting
1170 * \param d the struct value_desc that has the extra constraints
1172 * \return GL_FALSE if all of the constraints were not satisfied,
1173 * otherwise GL_TRUE.
1176 check_extra(struct gl_context
*ctx
, const char *func
, const struct value_desc
*d
)
1178 const GLuint version
= ctx
->Version
;
1179 GLboolean api_check
= GL_FALSE
;
1180 GLboolean api_found
= GL_FALSE
;
1183 for (e
= d
->extra
; *e
!= EXTRA_END
; e
++) {
1185 case EXTRA_VERSION_30
:
1186 api_check
= GL_TRUE
;
1188 api_found
= GL_TRUE
;
1190 case EXTRA_VERSION_31
:
1191 api_check
= GL_TRUE
;
1193 api_found
= GL_TRUE
;
1195 case EXTRA_VERSION_32
:
1196 api_check
= GL_TRUE
;
1198 api_found
= GL_TRUE
;
1200 case EXTRA_NEW_FRAG_CLAMP
:
1201 if (ctx
->NewState
& (_NEW_BUFFERS
| _NEW_FRAG_CLAMP
))
1202 _mesa_update_state(ctx
);
1205 api_check
= GL_TRUE
;
1206 if (ctx
->API
== API_OPENGLES2
)
1207 api_found
= GL_TRUE
;
1210 api_check
= GL_TRUE
;
1211 if (_mesa_is_gles3(ctx
))
1212 api_found
= GL_TRUE
;
1214 case EXTRA_API_ES31
:
1215 api_check
= GL_TRUE
;
1216 if (_mesa_is_gles31(ctx
))
1217 api_found
= GL_TRUE
;
1220 api_check
= GL_TRUE
;
1221 if (_mesa_is_desktop_gl(ctx
))
1222 api_found
= GL_TRUE
;
1224 case EXTRA_API_GL_CORE
:
1225 api_check
= GL_TRUE
;
1226 if (ctx
->API
== API_OPENGL_CORE
)
1227 api_found
= GL_TRUE
;
1229 case EXTRA_NEW_BUFFERS
:
1230 if (ctx
->NewState
& _NEW_BUFFERS
)
1231 _mesa_update_state(ctx
);
1233 case EXTRA_FLUSH_CURRENT
:
1234 FLUSH_CURRENT(ctx
, 0);
1236 case EXTRA_VALID_DRAW_BUFFER
:
1237 if (d
->pname
- GL_DRAW_BUFFER0_ARB
>= ctx
->Const
.MaxDrawBuffers
) {
1238 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(draw buffer %u)",
1239 func
, d
->pname
- GL_DRAW_BUFFER0_ARB
);
1243 case EXTRA_VALID_TEXTURE_UNIT
:
1244 if (ctx
->Texture
.CurrentUnit
>= ctx
->Const
.MaxTextureCoordUnits
) {
1245 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(texture %u)",
1246 func
, ctx
->Texture
.CurrentUnit
);
1250 case EXTRA_VALID_CLIP_DISTANCE
:
1251 if (d
->pname
- GL_CLIP_DISTANCE0
>= ctx
->Const
.MaxClipPlanes
) {
1252 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(clip distance %u)",
1253 func
, d
->pname
- GL_CLIP_DISTANCE0
);
1257 case EXTRA_GLSL_130
:
1258 api_check
= GL_TRUE
;
1259 if (ctx
->Const
.GLSLVersion
>= 130)
1260 api_found
= GL_TRUE
;
1262 case EXTRA_EXT_UBO_GS
:
1263 api_check
= GL_TRUE
;
1264 if (ctx
->Extensions
.ARB_uniform_buffer_object
&&
1265 _mesa_has_geometry_shaders(ctx
))
1266 api_found
= GL_TRUE
;
1268 case EXTRA_EXT_ATOMICS_GS
:
1269 api_check
= GL_TRUE
;
1270 if (ctx
->Extensions
.ARB_shader_atomic_counters
&&
1271 _mesa_has_geometry_shaders(ctx
))
1272 api_found
= GL_TRUE
;
1274 case EXTRA_EXT_SHADER_IMAGE_GS
:
1275 api_check
= GL_TRUE
;
1276 if (ctx
->Extensions
.ARB_shader_image_load_store
&&
1277 _mesa_has_geometry_shaders(ctx
))
1278 api_found
= GL_TRUE
;
1280 case EXTRA_EXT_ATOMICS_TESS
:
1281 api_check
= GL_TRUE
;
1282 api_found
= ctx
->Extensions
.ARB_shader_atomic_counters
&&
1283 _mesa_has_tessellation(ctx
);
1285 case EXTRA_EXT_SHADER_IMAGE_TESS
:
1286 api_check
= GL_TRUE
;
1287 api_found
= ctx
->Extensions
.ARB_shader_image_load_store
&&
1288 _mesa_has_tessellation(ctx
);
1290 case EXTRA_EXT_SSBO_GS
:
1291 api_check
= GL_TRUE
;
1292 if (ctx
->Extensions
.ARB_shader_storage_buffer_object
&&
1293 _mesa_has_geometry_shaders(ctx
))
1294 api_found
= GL_TRUE
;
1296 case EXTRA_EXT_FB_NO_ATTACH_GS
:
1297 api_check
= GL_TRUE
;
1298 if (ctx
->Extensions
.ARB_framebuffer_no_attachments
&&
1299 (_mesa_is_desktop_gl(ctx
) ||
1300 _mesa_has_OES_geometry_shader(ctx
)))
1301 api_found
= GL_TRUE
;
1303 case EXTRA_EXT_ES_GS
:
1304 api_check
= GL_TRUE
;
1305 if (_mesa_has_OES_geometry_shader(ctx
))
1306 api_found
= GL_TRUE
;
1310 default: /* *e is a offset into the extension struct */
1311 api_check
= GL_TRUE
;
1312 if (*(GLboolean
*) ((char *) &ctx
->Extensions
+ *e
))
1313 api_found
= GL_TRUE
;
1318 if (api_check
&& !api_found
) {
1319 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=%s)", func
,
1320 _mesa_enum_to_string(d
->pname
));
1327 static const struct value_desc error_value
=
1328 { 0, 0, TYPE_INVALID
, NO_OFFSET
, NO_EXTRA
};
1331 * Find the struct value_desc corresponding to the enum 'pname'.
1333 * We hash the enum value to get an index into the 'table' array,
1334 * which holds the index in the 'values' array of struct value_desc.
1335 * Once we've found the entry, we do the extra checks, if any, then
1336 * look up the value and return a pointer to it.
1338 * If the value has to be computed (for example, it's the result of a
1339 * function call or we need to add 1 to it), we use the tmp 'v' to
1342 * \param func name of glGet*v() func for error reporting
1343 * \param pname the enum value we're looking up
1344 * \param p is were we return the pointer to the value
1345 * \param v a tmp union value variable in the calling glGet*v() function
1347 * \return the struct value_desc corresponding to the enum or a struct
1348 * value_desc of TYPE_INVALID if not found. This lets the calling
1349 * glGet*v() function jump right into a switch statement and
1350 * handle errors there instead of having to check for NULL.
1352 static const struct value_desc
*
1353 find_value(const char *func
, GLenum pname
, void **p
, union value
*v
)
1355 GET_CURRENT_CONTEXT(ctx
);
1356 struct gl_texture_unit
*unit
;
1358 const struct value_desc
*d
;
1362 /* We index into the table_set[] list of per-API hash tables using the API's
1363 * value in the gl_api enum. Since GLES 3 doesn't have an API_OPENGL* enum
1364 * value since it's compatible with GLES2 its entry in table_set[] is at the
1367 STATIC_ASSERT(ARRAY_SIZE(table_set
) == API_OPENGL_LAST
+ 3);
1368 if (_mesa_is_gles3(ctx
)) {
1369 api
= API_OPENGL_LAST
+ 1;
1371 if (_mesa_is_gles31(ctx
)) {
1372 api
= API_OPENGL_LAST
+ 2;
1374 mask
= ARRAY_SIZE(table(api
)) - 1;
1375 hash
= (pname
* prime_factor
);
1377 int idx
= table(api
)[hash
& mask
];
1379 /* If the enum isn't valid, the hash walk ends with index 0,
1380 * pointing to the first entry of values[] which doesn't hold
1381 * any valid enum. */
1382 if (unlikely(idx
== 0)) {
1383 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=%s)", func
,
1384 _mesa_enum_to_string(pname
));
1385 return &error_value
;
1389 if (likely(d
->pname
== pname
))
1395 if (unlikely(d
->extra
&& !check_extra(ctx
, func
, d
)))
1396 return &error_value
;
1398 switch (d
->location
) {
1400 *p
= ((char *) ctx
->DrawBuffer
+ d
->offset
);
1403 *p
= ((char *) ctx
+ d
->offset
);
1406 *p
= ((char *) ctx
->Array
.VAO
+ d
->offset
);
1409 unit
= &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1410 *p
= ((char *) unit
+ d
->offset
);
1413 find_custom_value(ctx
, d
, v
);
1421 /* silence warning */
1422 return &error_value
;
1425 static const int transpose
[] = {
1433 _mesa_GetBooleanv(GLenum pname
, GLboolean
*params
)
1435 const struct value_desc
*d
;
1441 d
= find_value("glGetBooleanv", pname
, &p
, &v
);
1446 params
[0] = INT_TO_BOOLEAN(d
->offset
);
1451 params
[3] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[3]);
1454 params
[2] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[2]);
1457 params
[1] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[1]);
1460 params
[0] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[0]);
1463 case TYPE_DOUBLEN_2
:
1464 params
[1] = FLOAT_TO_BOOLEAN(((GLdouble
*) p
)[1]);
1466 params
[0] = FLOAT_TO_BOOLEAN(((GLdouble
*) p
)[0]);
1470 params
[3] = INT_TO_BOOLEAN(((GLint
*) p
)[3]);
1472 params
[2] = INT_TO_BOOLEAN(((GLint
*) p
)[2]);
1475 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
;
1539 params
[3] = ((GLfloat
*) p
)[3];
1542 params
[2] = ((GLfloat
*) p
)[2];
1545 params
[1] = ((GLfloat
*) p
)[1];
1548 params
[0] = ((GLfloat
*) p
)[0];
1551 case TYPE_DOUBLEN_2
:
1552 params
[1] = (GLfloat
) (((GLdouble
*) p
)[1]);
1554 params
[0] = (GLfloat
) (((GLdouble
*) p
)[0]);
1558 params
[3] = (GLfloat
) (((GLint
*) p
)[3]);
1560 params
[2] = (GLfloat
) (((GLint
*) p
)[2]);
1563 params
[1] = (GLfloat
) (((GLint
*) p
)[1]);
1566 params
[0] = (GLfloat
) (((GLint
*) p
)[0]);
1570 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1571 params
[i
] = INT_TO_FLOAT(v
.value_int_n
.ints
[i
]);
1575 params
[0] = (GLfloat
) (((GLint64
*) p
)[0]);
1579 params
[0] = BOOLEAN_TO_FLOAT(*(GLboolean
*) p
);
1583 m
= *(GLmatrix
**) p
;
1584 for (i
= 0; i
< 16; i
++)
1585 params
[i
] = m
->m
[i
];
1589 m
= *(GLmatrix
**) p
;
1590 for (i
= 0; i
< 16; i
++)
1591 params
[i
] = m
->m
[transpose
[i
]];
1602 shift
= d
->type
- TYPE_BIT_0
;
1603 params
[0] = BOOLEAN_TO_FLOAT((*(GLbitfield
*) p
>> shift
) & 1);
1609 _mesa_GetIntegerv(GLenum pname
, GLint
*params
)
1611 const struct value_desc
*d
;
1617 d
= find_value("glGetIntegerv", pname
, &p
, &v
);
1622 params
[0] = d
->offset
;
1626 params
[3] = IROUND(((GLfloat
*) p
)[3]);
1628 params
[2] = IROUND(((GLfloat
*) p
)[2]);
1630 params
[1] = IROUND(((GLfloat
*) p
)[1]);
1632 params
[0] = IROUND(((GLfloat
*) p
)[0]);
1636 params
[3] = FLOAT_TO_INT(((GLfloat
*) p
)[3]);
1638 params
[2] = FLOAT_TO_INT(((GLfloat
*) p
)[2]);
1640 params
[1] = FLOAT_TO_INT(((GLfloat
*) p
)[1]);
1642 params
[0] = FLOAT_TO_INT(((GLfloat
*) p
)[0]);
1645 case TYPE_DOUBLEN_2
:
1646 params
[1] = FLOAT_TO_INT(((GLdouble
*) p
)[1]);
1648 params
[0] = FLOAT_TO_INT(((GLdouble
*) p
)[0]);
1652 params
[3] = ((GLint
*) p
)[3];
1654 params
[2] = ((GLint
*) p
)[2];
1657 params
[1] = ((GLint
*) p
)[1];
1660 params
[0] = ((GLint
*) p
)[0];
1664 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1665 params
[i
] = v
.value_int_n
.ints
[i
];
1669 params
[0] = INT64_TO_INT(((GLint64
*) p
)[0]);
1673 params
[0] = BOOLEAN_TO_INT(*(GLboolean
*) p
);
1677 m
= *(GLmatrix
**) p
;
1678 for (i
= 0; i
< 16; i
++)
1679 params
[i
] = FLOAT_TO_INT(m
->m
[i
]);
1683 m
= *(GLmatrix
**) p
;
1684 for (i
= 0; i
< 16; i
++)
1685 params
[i
] = FLOAT_TO_INT(m
->m
[transpose
[i
]]);
1696 shift
= d
->type
- TYPE_BIT_0
;
1697 params
[0] = (*(GLbitfield
*) p
>> shift
) & 1;
1703 _mesa_GetInteger64v(GLenum pname
, GLint64
*params
)
1705 const struct value_desc
*d
;
1711 d
= find_value("glGetInteger64v", pname
, &p
, &v
);
1716 params
[0] = d
->offset
;
1720 params
[3] = IROUND64(((GLfloat
*) p
)[3]);
1722 params
[2] = IROUND64(((GLfloat
*) p
)[2]);
1724 params
[1] = IROUND64(((GLfloat
*) p
)[1]);
1726 params
[0] = IROUND64(((GLfloat
*) p
)[0]);
1730 params
[3] = FLOAT_TO_INT(((GLfloat
*) p
)[3]);
1732 params
[2] = FLOAT_TO_INT(((GLfloat
*) p
)[2]);
1734 params
[1] = FLOAT_TO_INT(((GLfloat
*) p
)[1]);
1736 params
[0] = FLOAT_TO_INT(((GLfloat
*) p
)[0]);
1739 case TYPE_DOUBLEN_2
:
1740 params
[1] = FLOAT_TO_INT(((GLdouble
*) p
)[1]);
1742 params
[0] = FLOAT_TO_INT(((GLdouble
*) p
)[0]);
1746 params
[3] = ((GLint
*) p
)[3];
1748 params
[2] = ((GLint
*) p
)[2];
1751 params
[1] = ((GLint
*) p
)[1];
1754 params
[0] = ((GLint
*) p
)[0];
1758 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1759 params
[i
] = INT_TO_BOOLEAN(v
.value_int_n
.ints
[i
]);
1763 params
[0] = ((GLint64
*) p
)[0];
1767 params
[0] = ((GLboolean
*) p
)[0];
1771 m
= *(GLmatrix
**) p
;
1772 for (i
= 0; i
< 16; i
++)
1773 params
[i
] = FLOAT_TO_INT64(m
->m
[i
]);
1777 m
= *(GLmatrix
**) p
;
1778 for (i
= 0; i
< 16; i
++)
1779 params
[i
] = FLOAT_TO_INT64(m
->m
[transpose
[i
]]);
1790 shift
= d
->type
- TYPE_BIT_0
;
1791 params
[0] = (*(GLbitfield
*) p
>> shift
) & 1;
1797 _mesa_GetDoublev(GLenum pname
, GLdouble
*params
)
1799 const struct value_desc
*d
;
1805 d
= find_value("glGetDoublev", pname
, &p
, &v
);
1810 params
[0] = d
->offset
;
1815 params
[3] = ((GLfloat
*) p
)[3];
1818 params
[2] = ((GLfloat
*) p
)[2];
1821 params
[1] = ((GLfloat
*) p
)[1];
1824 params
[0] = ((GLfloat
*) p
)[0];
1827 case TYPE_DOUBLEN_2
:
1828 params
[1] = ((GLdouble
*) p
)[1];
1830 params
[0] = ((GLdouble
*) p
)[0];
1834 params
[3] = ((GLint
*) p
)[3];
1836 params
[2] = ((GLint
*) p
)[2];
1839 params
[1] = ((GLint
*) p
)[1];
1842 params
[0] = ((GLint
*) p
)[0];
1846 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1847 params
[i
] = v
.value_int_n
.ints
[i
];
1851 params
[0] = (GLdouble
) (((GLint64
*) p
)[0]);
1855 params
[0] = *(GLboolean
*) p
;
1859 m
= *(GLmatrix
**) p
;
1860 for (i
= 0; i
< 16; i
++)
1861 params
[i
] = m
->m
[i
];
1865 m
= *(GLmatrix
**) p
;
1866 for (i
= 0; i
< 16; i
++)
1867 params
[i
] = m
->m
[transpose
[i
]];
1878 shift
= d
->type
- TYPE_BIT_0
;
1879 params
[0] = (*(GLbitfield
*) p
>> shift
) & 1;
1885 * Convert a GL texture binding enum such as GL_TEXTURE_BINDING_2D
1886 * into the corresponding Mesa texture target index.
1887 * \return TEXTURE_x_INDEX or -1 if binding is invalid
1890 tex_binding_to_index(const struct gl_context
*ctx
, GLenum binding
)
1893 case GL_TEXTURE_BINDING_1D
:
1894 return _mesa_is_desktop_gl(ctx
) ? TEXTURE_1D_INDEX
: -1;
1895 case GL_TEXTURE_BINDING_2D
:
1896 return TEXTURE_2D_INDEX
;
1897 case GL_TEXTURE_BINDING_3D
:
1898 return ctx
->API
!= API_OPENGLES
? TEXTURE_3D_INDEX
: -1;
1899 case GL_TEXTURE_BINDING_CUBE_MAP
:
1900 return ctx
->Extensions
.ARB_texture_cube_map
1901 ? TEXTURE_CUBE_INDEX
: -1;
1902 case GL_TEXTURE_BINDING_RECTANGLE
:
1903 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.NV_texture_rectangle
1904 ? TEXTURE_RECT_INDEX
: -1;
1905 case GL_TEXTURE_BINDING_1D_ARRAY
:
1906 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_array
1907 ? TEXTURE_1D_ARRAY_INDEX
: -1;
1908 case GL_TEXTURE_BINDING_2D_ARRAY
:
1909 return (_mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_array
)
1910 || _mesa_is_gles3(ctx
)
1911 ? TEXTURE_2D_ARRAY_INDEX
: -1;
1912 case GL_TEXTURE_BINDING_BUFFER
:
1913 return (_mesa_has_ARB_texture_buffer_object(ctx
) ||
1914 _mesa_has_OES_texture_buffer(ctx
)) ?
1915 TEXTURE_BUFFER_INDEX
: -1;
1916 case GL_TEXTURE_BINDING_CUBE_MAP_ARRAY
:
1917 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.ARB_texture_cube_map_array
1918 ? TEXTURE_CUBE_ARRAY_INDEX
: -1;
1919 case GL_TEXTURE_BINDING_2D_MULTISAMPLE
:
1920 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.ARB_texture_multisample
1921 ? TEXTURE_2D_MULTISAMPLE_INDEX
: -1;
1922 case GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY
:
1923 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.ARB_texture_multisample
1924 ? TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX
: -1;
1930 static enum value_type
1931 find_value_indexed(const char *func
, GLenum pname
, GLuint index
, union value
*v
)
1933 GET_CURRENT_CONTEXT(ctx
);
1938 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1940 if (!ctx
->Extensions
.EXT_draw_buffers2
)
1942 v
->value_int
= (ctx
->Color
.BlendEnabled
>> index
) & 1;
1947 case GL_BLEND_SRC_RGB
:
1948 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1950 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1952 v
->value_int
= ctx
->Color
.Blend
[index
].SrcRGB
;
1954 case GL_BLEND_SRC_ALPHA
:
1955 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1957 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1959 v
->value_int
= ctx
->Color
.Blend
[index
].SrcA
;
1963 case GL_BLEND_DST_RGB
:
1964 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1966 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1968 v
->value_int
= ctx
->Color
.Blend
[index
].DstRGB
;
1970 case GL_BLEND_DST_ALPHA
:
1971 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1973 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1975 v
->value_int
= ctx
->Color
.Blend
[index
].DstA
;
1977 case GL_BLEND_EQUATION_RGB
:
1978 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1980 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1982 v
->value_int
= ctx
->Color
.Blend
[index
].EquationRGB
;
1984 case GL_BLEND_EQUATION_ALPHA
:
1985 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1987 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1989 v
->value_int
= ctx
->Color
.Blend
[index
].EquationA
;
1992 case GL_COLOR_WRITEMASK
:
1993 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1995 if (!ctx
->Extensions
.EXT_draw_buffers2
)
1997 v
->value_int_4
[0] = ctx
->Color
.ColorMask
[index
][RCOMP
] ? 1 : 0;
1998 v
->value_int_4
[1] = ctx
->Color
.ColorMask
[index
][GCOMP
] ? 1 : 0;
1999 v
->value_int_4
[2] = ctx
->Color
.ColorMask
[index
][BCOMP
] ? 1 : 0;
2000 v
->value_int_4
[3] = ctx
->Color
.ColorMask
[index
][ACOMP
] ? 1 : 0;
2003 case GL_SCISSOR_BOX
:
2004 if (index
>= ctx
->Const
.MaxViewports
)
2006 v
->value_int_4
[0] = ctx
->Scissor
.ScissorArray
[index
].X
;
2007 v
->value_int_4
[1] = ctx
->Scissor
.ScissorArray
[index
].Y
;
2008 v
->value_int_4
[2] = ctx
->Scissor
.ScissorArray
[index
].Width
;
2009 v
->value_int_4
[3] = ctx
->Scissor
.ScissorArray
[index
].Height
;
2013 if (index
>= ctx
->Const
.MaxViewports
)
2015 v
->value_float_4
[0] = ctx
->ViewportArray
[index
].X
;
2016 v
->value_float_4
[1] = ctx
->ViewportArray
[index
].Y
;
2017 v
->value_float_4
[2] = ctx
->ViewportArray
[index
].Width
;
2018 v
->value_float_4
[3] = ctx
->ViewportArray
[index
].Height
;
2019 return TYPE_FLOAT_4
;
2021 case GL_DEPTH_RANGE
:
2022 if (index
>= ctx
->Const
.MaxViewports
)
2024 v
->value_double_2
[0] = ctx
->ViewportArray
[index
].Near
;
2025 v
->value_double_2
[1] = ctx
->ViewportArray
[index
].Far
;
2026 return TYPE_DOUBLEN_2
;
2028 case GL_TRANSFORM_FEEDBACK_BUFFER_START
:
2029 if (index
>= ctx
->Const
.MaxTransformFeedbackBuffers
)
2031 if (!ctx
->Extensions
.EXT_transform_feedback
)
2033 v
->value_int64
= ctx
->TransformFeedback
.CurrentObject
->Offset
[index
];
2036 case GL_TRANSFORM_FEEDBACK_BUFFER_SIZE
:
2037 if (index
>= ctx
->Const
.MaxTransformFeedbackBuffers
)
2039 if (!ctx
->Extensions
.EXT_transform_feedback
)
2042 = ctx
->TransformFeedback
.CurrentObject
->RequestedSize
[index
];
2045 case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING
:
2046 if (index
>= ctx
->Const
.MaxTransformFeedbackBuffers
)
2048 if (!ctx
->Extensions
.EXT_transform_feedback
)
2050 v
->value_int
= ctx
->TransformFeedback
.CurrentObject
->BufferNames
[index
];
2053 case GL_UNIFORM_BUFFER_BINDING
:
2054 if (index
>= ctx
->Const
.MaxUniformBufferBindings
)
2056 if (!ctx
->Extensions
.ARB_uniform_buffer_object
)
2058 v
->value_int
= ctx
->UniformBufferBindings
[index
].BufferObject
->Name
;
2061 case GL_UNIFORM_BUFFER_START
:
2062 if (index
>= ctx
->Const
.MaxUniformBufferBindings
)
2064 if (!ctx
->Extensions
.ARB_uniform_buffer_object
)
2066 v
->value_int
= ctx
->UniformBufferBindings
[index
].Offset
< 0 ? 0 :
2067 ctx
->UniformBufferBindings
[index
].Offset
;
2070 case GL_UNIFORM_BUFFER_SIZE
:
2071 if (index
>= ctx
->Const
.MaxUniformBufferBindings
)
2073 if (!ctx
->Extensions
.ARB_uniform_buffer_object
)
2075 v
->value_int
= ctx
->UniformBufferBindings
[index
].Size
< 0 ? 0 :
2076 ctx
->UniformBufferBindings
[index
].Size
;
2079 /* ARB_shader_storage_buffer_object */
2080 case GL_SHADER_STORAGE_BUFFER_BINDING
:
2081 if (!ctx
->Extensions
.ARB_shader_storage_buffer_object
)
2083 if (index
>= ctx
->Const
.MaxShaderStorageBufferBindings
)
2085 v
->value_int
= ctx
->ShaderStorageBufferBindings
[index
].BufferObject
->Name
;
2088 case GL_SHADER_STORAGE_BUFFER_START
:
2089 if (!ctx
->Extensions
.ARB_shader_storage_buffer_object
)
2091 if (index
>= ctx
->Const
.MaxShaderStorageBufferBindings
)
2093 v
->value_int
= ctx
->ShaderStorageBufferBindings
[index
].Offset
< 0 ? 0 :
2094 ctx
->ShaderStorageBufferBindings
[index
].Offset
;
2097 case GL_SHADER_STORAGE_BUFFER_SIZE
:
2098 if (!ctx
->Extensions
.ARB_shader_storage_buffer_object
)
2100 if (index
>= ctx
->Const
.MaxShaderStorageBufferBindings
)
2102 v
->value_int
= ctx
->ShaderStorageBufferBindings
[index
].Size
< 0 ? 0 :
2103 ctx
->ShaderStorageBufferBindings
[index
].Size
;
2106 /* ARB_texture_multisample / GL3.2 */
2107 case GL_SAMPLE_MASK_VALUE
:
2110 if (!ctx
->Extensions
.ARB_texture_multisample
)
2112 v
->value_int
= ctx
->Multisample
.SampleMaskValue
;
2115 case GL_ATOMIC_COUNTER_BUFFER_BINDING
:
2116 if (!ctx
->Extensions
.ARB_shader_atomic_counters
)
2118 if (index
>= ctx
->Const
.MaxAtomicBufferBindings
)
2120 v
->value_int
= ctx
->AtomicBufferBindings
[index
].BufferObject
->Name
;
2123 case GL_ATOMIC_COUNTER_BUFFER_START
:
2124 if (!ctx
->Extensions
.ARB_shader_atomic_counters
)
2126 if (index
>= ctx
->Const
.MaxAtomicBufferBindings
)
2128 v
->value_int64
= ctx
->AtomicBufferBindings
[index
].Offset
;
2131 case GL_ATOMIC_COUNTER_BUFFER_SIZE
:
2132 if (!ctx
->Extensions
.ARB_shader_atomic_counters
)
2134 if (index
>= ctx
->Const
.MaxAtomicBufferBindings
)
2136 v
->value_int64
= ctx
->AtomicBufferBindings
[index
].Size
;
2139 case GL_VERTEX_BINDING_DIVISOR
:
2140 if ((!_mesa_is_desktop_gl(ctx
) || !ctx
->Extensions
.ARB_instanced_arrays
) &&
2141 !_mesa_is_gles31(ctx
))
2143 if (index
>= ctx
->Const
.Program
[MESA_SHADER_VERTEX
].MaxAttribs
)
2145 v
->value_int
= ctx
->Array
.VAO
->VertexBinding
[VERT_ATTRIB_GENERIC(index
)].InstanceDivisor
;
2148 case GL_VERTEX_BINDING_OFFSET
:
2149 if (!_mesa_is_desktop_gl(ctx
) && !_mesa_is_gles31(ctx
))
2151 if (index
>= ctx
->Const
.Program
[MESA_SHADER_VERTEX
].MaxAttribs
)
2153 v
->value_int
= ctx
->Array
.VAO
->VertexBinding
[VERT_ATTRIB_GENERIC(index
)].Offset
;
2156 case GL_VERTEX_BINDING_STRIDE
:
2157 if (!_mesa_is_desktop_gl(ctx
) && !_mesa_is_gles31(ctx
))
2159 if (index
>= ctx
->Const
.Program
[MESA_SHADER_VERTEX
].MaxAttribs
)
2161 v
->value_int
= ctx
->Array
.VAO
->VertexBinding
[VERT_ATTRIB_GENERIC(index
)].Stride
;
2164 case GL_VERTEX_BINDING_BUFFER
:
2165 if (ctx
->API
== API_OPENGLES2
&& ctx
->Version
< 31)
2167 if (index
>= ctx
->Const
.Program
[MESA_SHADER_VERTEX
].MaxAttribs
)
2169 v
->value_int
= ctx
->Array
.VAO
->VertexBinding
[VERT_ATTRIB_GENERIC(index
)].BufferObj
->Name
;
2172 /* ARB_shader_image_load_store */
2173 case GL_IMAGE_BINDING_NAME
: {
2174 struct gl_texture_object
*t
;
2176 if (!ctx
->Extensions
.ARB_shader_image_load_store
)
2178 if (index
>= ctx
->Const
.MaxImageUnits
)
2181 t
= ctx
->ImageUnits
[index
].TexObj
;
2182 v
->value_int
= (t
? t
->Name
: 0);
2186 case GL_IMAGE_BINDING_LEVEL
:
2187 if (!ctx
->Extensions
.ARB_shader_image_load_store
)
2189 if (index
>= ctx
->Const
.MaxImageUnits
)
2192 v
->value_int
= ctx
->ImageUnits
[index
].Level
;
2195 case GL_IMAGE_BINDING_LAYERED
:
2196 if (!ctx
->Extensions
.ARB_shader_image_load_store
)
2198 if (index
>= ctx
->Const
.MaxImageUnits
)
2201 v
->value_int
= ctx
->ImageUnits
[index
].Layered
;
2204 case GL_IMAGE_BINDING_LAYER
:
2205 if (!ctx
->Extensions
.ARB_shader_image_load_store
)
2207 if (index
>= ctx
->Const
.MaxImageUnits
)
2210 v
->value_int
= ctx
->ImageUnits
[index
].Layer
;
2213 case GL_IMAGE_BINDING_ACCESS
:
2214 if (!ctx
->Extensions
.ARB_shader_image_load_store
)
2216 if (index
>= ctx
->Const
.MaxImageUnits
)
2219 v
->value_int
= ctx
->ImageUnits
[index
].Access
;
2222 case GL_IMAGE_BINDING_FORMAT
:
2223 if (!ctx
->Extensions
.ARB_shader_image_load_store
)
2225 if (index
>= ctx
->Const
.MaxImageUnits
)
2228 v
->value_int
= ctx
->ImageUnits
[index
].Format
;
2231 /* ARB_direct_state_access */
2232 case GL_TEXTURE_BINDING_1D
:
2233 case GL_TEXTURE_BINDING_1D_ARRAY
:
2234 case GL_TEXTURE_BINDING_2D
:
2235 case GL_TEXTURE_BINDING_2D_ARRAY
:
2236 case GL_TEXTURE_BINDING_2D_MULTISAMPLE
:
2237 case GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY
:
2238 case GL_TEXTURE_BINDING_3D
:
2239 case GL_TEXTURE_BINDING_BUFFER
:
2240 case GL_TEXTURE_BINDING_CUBE_MAP
:
2241 case GL_TEXTURE_BINDING_CUBE_MAP_ARRAY
:
2242 case GL_TEXTURE_BINDING_RECTANGLE
: {
2245 if (ctx
->API
!= API_OPENGL_CORE
)
2247 target
= tex_binding_to_index(ctx
, pname
);
2250 if (index
>= _mesa_max_tex_unit(ctx
))
2253 v
->value_int
= ctx
->Texture
.Unit
[index
].CurrentTex
[target
]->Name
;
2257 case GL_SAMPLER_BINDING
: {
2258 struct gl_sampler_object
*samp
;
2260 if (ctx
->API
!= API_OPENGL_CORE
)
2262 if (index
>= _mesa_max_tex_unit(ctx
))
2265 samp
= ctx
->Texture
.Unit
[index
].Sampler
;
2266 v
->value_int
= samp
? samp
->Name
: 0;
2270 case GL_MAX_COMPUTE_WORK_GROUP_COUNT
:
2271 if (!_mesa_has_compute_shaders(ctx
))
2275 v
->value_int
= ctx
->Const
.MaxComputeWorkGroupCount
[index
];
2278 case GL_MAX_COMPUTE_WORK_GROUP_SIZE
:
2279 if (!_mesa_has_compute_shaders(ctx
))
2283 v
->value_int
= ctx
->Const
.MaxComputeWorkGroupSize
[index
];
2288 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=%s)", func
,
2289 _mesa_enum_to_string(pname
));
2290 return TYPE_INVALID
;
2292 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(pname=%s)", func
,
2293 _mesa_enum_to_string(pname
));
2294 return TYPE_INVALID
;
2298 _mesa_GetBooleani_v( GLenum pname
, GLuint index
, GLboolean
*params
)
2301 enum value_type type
=
2302 find_value_indexed("glGetBooleani_v", pname
, index
, &v
);
2306 params
[0] = INT_TO_BOOLEAN(v
.value_int
);
2309 params
[0] = INT_TO_BOOLEAN(v
.value_int_4
[0]);
2310 params
[1] = INT_TO_BOOLEAN(v
.value_int_4
[1]);
2311 params
[2] = INT_TO_BOOLEAN(v
.value_int_4
[2]);
2312 params
[3] = INT_TO_BOOLEAN(v
.value_int_4
[3]);
2315 params
[0] = INT64_TO_BOOLEAN(v
.value_int64
);
2318 ; /* nothing - GL error was recorded */
2323 _mesa_GetIntegeri_v( GLenum pname
, GLuint index
, GLint
*params
)
2326 enum value_type type
=
2327 find_value_indexed("glGetIntegeri_v", pname
, index
, &v
);
2332 params
[3] = IROUND(v
.value_float_4
[3]);
2335 params
[2] = IROUND(v
.value_float_4
[2]);
2338 params
[1] = IROUND(v
.value_float_4
[1]);
2341 params
[0] = IROUND(v
.value_float_4
[0]);
2344 case TYPE_DOUBLEN_2
:
2345 params
[1] = IROUND(v
.value_double_2
[1]);
2347 params
[0] = IROUND(v
.value_double_2
[0]);
2351 params
[0] = v
.value_int
;
2354 params
[0] = v
.value_int_4
[0];
2355 params
[1] = v
.value_int_4
[1];
2356 params
[2] = v
.value_int_4
[2];
2357 params
[3] = v
.value_int_4
[3];
2360 params
[0] = INT64_TO_INT(v
.value_int64
);
2363 ; /* nothing - GL error was recorded */
2368 _mesa_GetInteger64i_v( GLenum pname
, GLuint index
, GLint64
*params
)
2371 enum value_type type
=
2372 find_value_indexed("glGetInteger64i_v", pname
, index
, &v
);
2376 params
[0] = v
.value_int
;
2379 params
[0] = v
.value_int_4
[0];
2380 params
[1] = v
.value_int_4
[1];
2381 params
[2] = v
.value_int_4
[2];
2382 params
[3] = v
.value_int_4
[3];
2385 params
[0] = v
.value_int64
;
2388 ; /* nothing - GL error was recorded */
2393 _mesa_GetFloati_v(GLenum pname
, GLuint index
, GLfloat
*params
)
2398 enum value_type type
=
2399 find_value_indexed("glGetFloati_v", pname
, index
, &v
);
2404 params
[3] = v
.value_float_4
[3];
2407 params
[2] = v
.value_float_4
[2];
2410 params
[1] = v
.value_float_4
[1];
2413 params
[0] = v
.value_float_4
[0];
2416 case TYPE_DOUBLEN_2
:
2417 params
[1] = (GLfloat
) v
.value_double_2
[1];
2419 params
[0] = (GLfloat
) v
.value_double_2
[0];
2423 params
[3] = (GLfloat
) v
.value_int_4
[3];
2425 params
[2] = (GLfloat
) v
.value_int_4
[2];
2428 params
[1] = (GLfloat
) v
.value_int_4
[1];
2431 params
[0] = (GLfloat
) v
.value_int_4
[0];
2435 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
2436 params
[i
] = INT_TO_FLOAT(v
.value_int_n
.ints
[i
]);
2440 params
[0] = (GLfloat
) v
.value_int64
;
2444 params
[0] = BOOLEAN_TO_FLOAT(v
.value_bool
);
2448 m
= *(GLmatrix
**) &v
;
2449 for (i
= 0; i
< 16; i
++)
2450 params
[i
] = m
->m
[i
];
2454 m
= *(GLmatrix
**) &v
;
2455 for (i
= 0; i
< 16; i
++)
2456 params
[i
] = m
->m
[transpose
[i
]];
2465 _mesa_GetDoublei_v(GLenum pname
, GLuint index
, GLdouble
*params
)
2470 enum value_type type
=
2471 find_value_indexed("glGetDoublei_v", pname
, index
, &v
);
2476 params
[3] = (GLdouble
) v
.value_float_4
[3];
2479 params
[2] = (GLdouble
) v
.value_float_4
[2];
2482 params
[1] = (GLdouble
) v
.value_float_4
[1];
2485 params
[0] = (GLdouble
) v
.value_float_4
[0];
2488 case TYPE_DOUBLEN_2
:
2489 params
[1] = v
.value_double_2
[1];
2491 params
[0] = v
.value_double_2
[0];
2495 params
[3] = (GLdouble
) v
.value_int_4
[3];
2497 params
[2] = (GLdouble
) v
.value_int_4
[2];
2500 params
[1] = (GLdouble
) v
.value_int_4
[1];
2503 params
[0] = (GLdouble
) v
.value_int_4
[0];
2507 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
2508 params
[i
] = (GLdouble
) INT_TO_FLOAT(v
.value_int_n
.ints
[i
]);
2512 params
[0] = (GLdouble
) v
.value_int64
;
2516 params
[0] = (GLdouble
) BOOLEAN_TO_FLOAT(v
.value_bool
);
2520 m
= *(GLmatrix
**) &v
;
2521 for (i
= 0; i
< 16; i
++)
2522 params
[i
] = (GLdouble
) m
->m
[i
];
2526 m
= *(GLmatrix
**) &v
;
2527 for (i
= 0; i
< 16; i
++)
2528 params
[i
] = (GLdouble
) m
->m
[transpose
[i
]];
2537 _mesa_GetFixedv(GLenum pname
, GLfixed
*params
)
2539 const struct value_desc
*d
;
2545 d
= find_value("glGetDoublev", pname
, &p
, &v
);
2550 params
[0] = INT_TO_FIXED(d
->offset
);
2555 params
[3] = FLOAT_TO_FIXED(((GLfloat
*) p
)[3]);
2558 params
[2] = FLOAT_TO_FIXED(((GLfloat
*) p
)[2]);
2561 params
[1] = FLOAT_TO_FIXED(((GLfloat
*) p
)[1]);
2564 params
[0] = FLOAT_TO_FIXED(((GLfloat
*) p
)[0]);
2567 case TYPE_DOUBLEN_2
:
2568 params
[1] = FLOAT_TO_FIXED(((GLdouble
*) p
)[1]);
2570 params
[0] = FLOAT_TO_FIXED(((GLdouble
*) p
)[0]);
2574 params
[3] = INT_TO_FIXED(((GLint
*) p
)[3]);
2576 params
[2] = INT_TO_FIXED(((GLint
*) p
)[2]);
2579 params
[1] = INT_TO_FIXED(((GLint
*) p
)[1]);
2582 params
[0] = INT_TO_FIXED(((GLint
*) p
)[0]);
2586 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
2587 params
[i
] = INT_TO_FIXED(v
.value_int_n
.ints
[i
]);
2591 params
[0] = ((GLint64
*) p
)[0];
2595 params
[0] = BOOLEAN_TO_FIXED(((GLboolean
*) p
)[0]);
2599 m
= *(GLmatrix
**) p
;
2600 for (i
= 0; i
< 16; i
++)
2601 params
[i
] = FLOAT_TO_FIXED(m
->m
[i
]);
2605 m
= *(GLmatrix
**) p
;
2606 for (i
= 0; i
< 16; i
++)
2607 params
[i
] = FLOAT_TO_FIXED(m
->m
[transpose
[i
]]);
2618 shift
= d
->type
- TYPE_BIT_0
;
2619 params
[0] = BOOLEAN_TO_FIXED((*(GLbitfield
*) p
>> shift
) & 1);