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>
32 #include "extensions.h"
37 #include "texcompress.h"
39 #include "framebuffer.h"
40 #include "samplerobj.h"
43 /* This is a table driven implemetation of the glGet*v() functions.
44 * The basic idea is that most getters just look up an int somewhere
45 * in struct gl_context and then convert it to a bool or float according to
46 * which of glGetIntegerv() glGetBooleanv() etc is being called.
47 * Instead of generating code to do this, we can just record the enum
48 * value and the offset into struct gl_context in an array of structs. Then
49 * in glGet*(), we lookup the struct for the enum in question, and use
50 * the offset to get the int we need.
52 * Sometimes we need to look up a float, a boolean, a bit in a
53 * bitfield, a matrix or other types instead, so we need to track the
54 * type of the value in struct gl_context. And sometimes the value isn't in
55 * struct gl_context but in the drawbuffer, the array object, current texture
56 * unit, or maybe it's a computed value. So we need to also track
57 * where or how to find the value. Finally, we sometimes need to
58 * check that one of a number of extensions are enabled, the GL
59 * version or flush or call _mesa_update_state(). This is done by
60 * attaching optional extra information to the value description
61 * struct, it's sort of like an array of opcodes that describe extra
64 * Putting all this together we end up with struct value_desc below,
65 * and with a couple of macros to help, the table of struct value_desc
66 * is about as concise as the specification in the old python script.
69 #define FLOAT_TO_BOOLEAN(X) ( (X) ? GL_TRUE : GL_FALSE )
70 #define FLOAT_TO_FIXED(F) ( ((F) * 65536.0f > INT_MAX) ? INT_MAX : \
71 ((F) * 65536.0f < INT_MIN) ? INT_MIN : \
72 (GLint) ((F) * 65536.0f) )
74 #define INT_TO_BOOLEAN(I) ( (I) ? GL_TRUE : GL_FALSE )
75 #define INT_TO_FIXED(I) ( ((I) > SHRT_MAX) ? INT_MAX : \
76 ((I) < SHRT_MIN) ? INT_MIN : \
77 (GLint) ((I) * 65536) )
79 #define INT64_TO_BOOLEAN(I) ( (I) ? GL_TRUE : GL_FALSE )
80 #define INT64_TO_INT(I) ( (GLint)((I > INT_MAX) ? INT_MAX : ((I < INT_MIN) ? INT_MIN : (I))) )
82 #define BOOLEAN_TO_INT(B) ( (GLint) (B) )
83 #define BOOLEAN_TO_INT64(B) ( (GLint64) (B) )
84 #define BOOLEAN_TO_FLOAT(B) ( (B) ? 1.0F : 0.0F )
85 #define BOOLEAN_TO_FIXED(B) ( (GLint) ((B) ? 1 : 0) << 16 )
87 #define ENUM_TO_INT64(E) ( (GLint64) (E) )
88 #define ENUM_TO_FIXED(E) (E)
124 enum value_location
{
144 EXTRA_NEW_FRAG_CLAMP
,
145 EXTRA_VALID_DRAW_BUFFER
,
146 EXTRA_VALID_TEXTURE_UNIT
,
147 EXTRA_VALID_CLIP_DISTANCE
,
151 EXTRA_EXT_ATOMICS_GS4
,
152 EXTRA_EXT_SHADER_IMAGE_GS4
,
153 EXTRA_EXT_ATOMICS_TESS
,
154 EXTRA_EXT_SHADER_IMAGE_TESS
,
157 #define NO_EXTRA NULL
162 GLubyte location
; /**< enum value_location */
163 GLubyte type
; /**< enum value_type */
170 GLfloat value_float_4
[4];
171 GLdouble value_double_2
[2];
172 GLmatrix
*value_matrix
;
174 GLint value_int_4
[4];
178 /* Sigh, see GL_COMPRESSED_TEXTURE_FORMATS_ARB handling */
182 GLboolean value_bool
;
185 #define BUFFER_FIELD(field, type) \
186 LOC_BUFFER, type, offsetof(struct gl_framebuffer, field)
187 #define CONTEXT_FIELD(field, type) \
188 LOC_CONTEXT, type, offsetof(struct gl_context, field)
189 #define ARRAY_FIELD(field, type) \
190 LOC_ARRAY, type, offsetof(struct gl_vertex_array_object, field)
191 #undef CONST /* already defined through windows.h */
192 #define CONST(value) \
193 LOC_CONTEXT, TYPE_CONST, value
195 #define BUFFER_INT(field) BUFFER_FIELD(field, TYPE_INT)
196 #define BUFFER_ENUM(field) BUFFER_FIELD(field, TYPE_ENUM)
197 #define BUFFER_BOOL(field) BUFFER_FIELD(field, TYPE_BOOLEAN)
199 #define CONTEXT_INT(field) CONTEXT_FIELD(field, TYPE_INT)
200 #define CONTEXT_INT2(field) CONTEXT_FIELD(field, TYPE_INT_2)
201 #define CONTEXT_INT64(field) CONTEXT_FIELD(field, TYPE_INT64)
202 #define CONTEXT_ENUM(field) CONTEXT_FIELD(field, TYPE_ENUM)
203 #define CONTEXT_ENUM2(field) CONTEXT_FIELD(field, TYPE_ENUM_2)
204 #define CONTEXT_BOOL(field) CONTEXT_FIELD(field, TYPE_BOOLEAN)
205 #define CONTEXT_BIT0(field) CONTEXT_FIELD(field, TYPE_BIT_0)
206 #define CONTEXT_BIT1(field) CONTEXT_FIELD(field, TYPE_BIT_1)
207 #define CONTEXT_BIT2(field) CONTEXT_FIELD(field, TYPE_BIT_2)
208 #define CONTEXT_BIT3(field) CONTEXT_FIELD(field, TYPE_BIT_3)
209 #define CONTEXT_BIT4(field) CONTEXT_FIELD(field, TYPE_BIT_4)
210 #define CONTEXT_BIT5(field) CONTEXT_FIELD(field, TYPE_BIT_5)
211 #define CONTEXT_BIT6(field) CONTEXT_FIELD(field, TYPE_BIT_6)
212 #define CONTEXT_BIT7(field) CONTEXT_FIELD(field, TYPE_BIT_7)
213 #define CONTEXT_FLOAT(field) CONTEXT_FIELD(field, TYPE_FLOAT)
214 #define CONTEXT_FLOAT2(field) CONTEXT_FIELD(field, TYPE_FLOAT_2)
215 #define CONTEXT_FLOAT3(field) CONTEXT_FIELD(field, TYPE_FLOAT_3)
216 #define CONTEXT_FLOAT4(field) CONTEXT_FIELD(field, TYPE_FLOAT_4)
217 #define CONTEXT_MATRIX(field) CONTEXT_FIELD(field, TYPE_MATRIX)
218 #define CONTEXT_MATRIX_T(field) CONTEXT_FIELD(field, TYPE_MATRIX_T)
220 #define ARRAY_INT(field) ARRAY_FIELD(field, TYPE_INT)
221 #define ARRAY_ENUM(field) ARRAY_FIELD(field, TYPE_ENUM)
222 #define ARRAY_BOOL(field) ARRAY_FIELD(field, TYPE_BOOLEAN)
225 offsetof(struct gl_extensions, f)
227 #define EXTRA_EXT(e) \
228 static const int extra_##e[] = { \
232 #define EXTRA_EXT2(e1, e2) \
233 static const int extra_##e1##_##e2[] = { \
234 EXT(e1), EXT(e2), EXTRA_END \
237 /* The 'extra' mechanism is a way to specify extra checks (such as
238 * extensions or specific gl versions) or actions (flush current, new
239 * buffers) that we need to do before looking up an enum. We need to
240 * declare them all up front so we can refer to them in the value_desc
243 * Each EXTRA_ will be executed. For EXTRA_* enums of extensions and API
244 * versions, listing multiple ones in an array means an error will be thrown
245 * only if none of them are available. If you need to check for "AND"
246 * behavior, you would need to make a custom EXTRA_ enum.
249 static const int extra_new_buffers
[] = {
254 static const int extra_new_frag_clamp
[] = {
255 EXTRA_NEW_FRAG_CLAMP
,
259 static const int extra_valid_draw_buffer
[] = {
260 EXTRA_VALID_DRAW_BUFFER
,
264 static const int extra_valid_texture_unit
[] = {
265 EXTRA_VALID_TEXTURE_UNIT
,
269 static const int extra_valid_clip_distance
[] = {
270 EXTRA_VALID_CLIP_DISTANCE
,
274 static const int extra_flush_current_valid_texture_unit
[] = {
276 EXTRA_VALID_TEXTURE_UNIT
,
280 static const int extra_flush_current
[] = {
285 static const int extra_EXT_texture_integer_and_new_buffers
[] = {
286 EXT(EXT_texture_integer
),
291 static const int extra_GLSL_130_es3
[] = {
297 static const int extra_texture_buffer_object
[] = {
300 EXT(ARB_texture_buffer_object
),
304 static const int extra_ARB_transform_feedback2_api_es3
[] = {
305 EXT(ARB_transform_feedback2
),
310 static const int extra_ARB_uniform_buffer_object_and_geometry_shader
[] = {
315 static const int extra_ARB_ES2_compatibility_api_es2
[] = {
316 EXT(ARB_ES2_compatibility
),
321 static const int extra_ARB_ES3_compatibility_api_es3
[] = {
322 EXT(ARB_ES3_compatibility
),
327 static const int extra_EXT_framebuffer_sRGB_and_new_buffers
[] = {
328 EXT(EXT_framebuffer_sRGB
),
333 static const int extra_EXT_packed_float
[] = {
334 EXT(EXT_packed_float
),
339 static const int extra_EXT_texture_array_es3
[] = {
340 EXT(EXT_texture_array
),
345 static const int extra_ARB_shader_atomic_counters_and_geometry_shader
[] = {
346 EXTRA_EXT_ATOMICS_GS4
,
350 static const int extra_ARB_shader_image_load_store_and_geometry_shader
[] = {
351 EXTRA_EXT_SHADER_IMAGE_GS4
,
355 static const int extra_ARB_shader_atomic_counters_and_tessellation
[] = {
356 EXTRA_EXT_ATOMICS_TESS
,
360 static const int extra_ARB_shader_image_load_store_and_tessellation
[] = {
361 EXTRA_EXT_SHADER_IMAGE_TESS
,
365 /* HACK: remove when ARB_compute_shader is actually supported */
366 static const int extra_ARB_compute_shader_es31
[] = {
367 EXT(ARB_compute_shader
),
372 static const int extra_ARB_shader_storage_buffer_object_es31
[] = {
373 EXT(ARB_shader_storage_buffer_object
),
378 EXTRA_EXT(ARB_texture_cube_map
);
379 EXTRA_EXT(EXT_texture_array
);
380 EXTRA_EXT(NV_fog_distance
);
381 EXTRA_EXT(EXT_texture_filter_anisotropic
);
382 EXTRA_EXT(NV_point_sprite
);
383 EXTRA_EXT(NV_texture_rectangle
);
384 EXTRA_EXT(EXT_stencil_two_side
);
385 EXTRA_EXT(EXT_depth_bounds_test
);
386 EXTRA_EXT(ARB_depth_clamp
);
387 EXTRA_EXT(ATI_fragment_shader
);
388 EXTRA_EXT(EXT_provoking_vertex
);
389 EXTRA_EXT(ARB_fragment_shader
);
390 EXTRA_EXT(ARB_fragment_program
);
391 EXTRA_EXT2(ARB_framebuffer_object
, EXT_framebuffer_multisample
);
392 EXTRA_EXT(ARB_seamless_cube_map
);
394 EXTRA_EXT(ARB_vertex_shader
);
395 EXTRA_EXT(EXT_transform_feedback
);
396 EXTRA_EXT(ARB_transform_feedback3
);
397 EXTRA_EXT(EXT_pixel_buffer_object
);
398 EXTRA_EXT(ARB_vertex_program
);
399 EXTRA_EXT2(NV_point_sprite
, ARB_point_sprite
);
400 EXTRA_EXT2(ARB_vertex_program
, ARB_fragment_program
);
401 EXTRA_EXT(ARB_color_buffer_float
);
402 EXTRA_EXT(EXT_framebuffer_sRGB
);
403 EXTRA_EXT(OES_EGL_image_external
);
404 EXTRA_EXT(ARB_blend_func_extended
);
405 EXTRA_EXT(ARB_uniform_buffer_object
);
406 EXTRA_EXT(ARB_timer_query
);
407 EXTRA_EXT(ARB_texture_cube_map_array
);
408 EXTRA_EXT(ARB_texture_buffer_range
);
409 EXTRA_EXT(ARB_texture_multisample
);
410 EXTRA_EXT(ARB_texture_gather
);
411 EXTRA_EXT(ARB_shader_atomic_counters
);
412 EXTRA_EXT(ARB_draw_indirect
);
413 EXTRA_EXT(ARB_shader_image_load_store
);
414 EXTRA_EXT(ARB_viewport_array
);
415 EXTRA_EXT(ARB_compute_shader
);
416 EXTRA_EXT(ARB_gpu_shader5
);
417 EXTRA_EXT2(ARB_transform_feedback3
, ARB_gpu_shader5
);
418 EXTRA_EXT(INTEL_performance_query
);
419 EXTRA_EXT(ARB_explicit_uniform_location
);
420 EXTRA_EXT(ARB_clip_control
);
421 EXTRA_EXT(EXT_polygon_offset_clamp
);
422 EXTRA_EXT(ARB_framebuffer_no_attachments
);
423 EXTRA_EXT(ARB_tessellation_shader
);
424 EXTRA_EXT(ARB_shader_subroutine
);
425 EXTRA_EXT(ARB_shader_storage_buffer_object
);
426 EXTRA_EXT(ARB_indirect_parameters
);
429 extra_ARB_color_buffer_float_or_glcore
[] = {
430 EXT(ARB_color_buffer_float
),
436 extra_NV_primitive_restart
[] = {
437 EXT(NV_primitive_restart
),
441 static const int extra_version_30
[] = { EXTRA_VERSION_30
, EXTRA_END
};
442 static const int extra_version_31
[] = { EXTRA_VERSION_31
, EXTRA_END
};
443 static const int extra_version_32
[] = { EXTRA_VERSION_32
, EXTRA_END
};
444 static const int extra_version_40
[] = { EXTRA_VERSION_40
, EXTRA_END
};
446 static const int extra_gl30_es3
[] = {
452 static const int extra_gl32_es3
[] = {
458 static const int extra_gl40_ARB_sample_shading
[] = {
460 EXT(ARB_sample_shading
),
465 extra_ARB_vertex_program_api_es2
[] = {
466 EXT(ARB_vertex_program
),
471 /* The ReadBuffer get token is valid under either full GL or under
472 * GLES2 if the NV_read_buffer extension is available. */
474 extra_NV_read_buffer_api_gl
[] = {
480 static const int extra_core_ARB_color_buffer_float_and_new_buffers
[] = {
482 EXT(ARB_color_buffer_float
),
487 /* This is the big table describing all the enums we accept in
488 * glGet*v(). The table is partitioned into six parts: enums
489 * understood by all GL APIs (OpenGL, GLES and GLES2), enums shared
490 * between OpenGL and GLES, enums exclusive to GLES, etc for the
491 * remaining combinations. To look up the enums valid in a given API
492 * we will use a hash table specific to that API. These tables are in
493 * turn generated at build time and included through get_hash.h.
496 #include "get_hash.h"
498 /* All we need now is a way to look up the value struct from the enum.
499 * The code generated by gcc for the old generated big switch
500 * statement is a big, balanced, open coded if/else tree, essentially
501 * an unrolled binary search. It would be natural to sort the new
502 * enum table and use bsearch(), but we will use a read-only hash
503 * table instead. bsearch() has a nice guaranteed worst case
504 * performance, but we're also guaranteed to hit that worst case
505 * (log2(n) iterations) for about half the enums. Instead, using an
506 * open addressing hash table, we can find the enum on the first try
507 * for 80% of the enums, 1 collision for 10% and never more than 5
508 * collisions for any enum (typical numbers). And the code is very
509 * simple, even though it feels a little magic. */
513 print_table_stats(int api
)
515 int i
, j
, collisions
[11], count
, hash
, mask
;
516 const struct value_desc
*d
;
517 const char *api_names
[] = {
518 [API_OPENGL_COMPAT
] = "GL",
519 [API_OPENGL_CORE
] = "GL_CORE",
520 [API_OPENGLES
] = "GLES",
521 [API_OPENGLES2
] = "GLES2",
523 const char *api_name
;
525 api_name
= api
< ARRAY_SIZE(api_names
) ? api_names
[api
] : "N/A";
527 mask
= ARRAY_SIZE(table(api
)) - 1;
528 memset(collisions
, 0, sizeof collisions
);
530 for (i
= 0; i
< ARRAY_SIZE(table(api
)); i
++) {
534 d
= &values
[table(api
)[i
]];
535 hash
= (d
->pname
* prime_factor
);
538 if (values
[table(api
)[hash
& mask
]].pname
== d
->pname
)
550 printf("number of enums for %s: %d (total %ld)\n",
551 api_name
, count
, ARRAY_SIZE(values
));
552 for (i
= 0; i
< ARRAY_SIZE(collisions
) - 1; i
++)
553 if (collisions
[i
] > 0)
554 printf(" %d enums with %d %scollisions\n",
555 collisions
[i
], i
, i
== 10 ? "or more " : "");
560 * Initialize the enum hash for a given API
562 * This is called from one_time_init() to insert the enum values that
563 * are valid for the API in question into the enum hash table.
565 * \param the current context, for determining the API in question
567 void _mesa_init_get_hash(struct gl_context
*ctx
)
570 print_table_stats(ctx
->API
);
577 * Handle irregular enums
579 * Some values don't conform to the "well-known type at context
580 * pointer + offset" pattern, so we have this function to catch all
581 * the corner cases. Typically, it's a computed value or a one-off
582 * pointer to a custom struct or something.
584 * In this case we can't return a pointer to the value, so we'll have
585 * to use the temporary variable 'v' declared back in the calling
586 * glGet*v() function to store the result.
588 * \param ctx the current context
589 * \param d the struct value_desc that describes the enum
590 * \param v pointer to the tmp declared in the calling glGet*v() function
593 find_custom_value(struct gl_context
*ctx
, const struct value_desc
*d
, union value
*v
)
595 struct gl_buffer_object
**buffer_obj
;
596 struct gl_vertex_attrib_array
*array
;
600 case GL_MAJOR_VERSION
:
601 v
->value_int
= ctx
->Version
/ 10;
603 case GL_MINOR_VERSION
:
604 v
->value_int
= ctx
->Version
% 10;
610 case GL_TEXTURE_CUBE_MAP_ARB
:
611 case GL_TEXTURE_RECTANGLE_NV
:
612 case GL_TEXTURE_EXTERNAL_OES
:
613 v
->value_bool
= _mesa_IsEnabled(d
->pname
);
616 case GL_LINE_STIPPLE_PATTERN
:
617 /* This is the only GLushort, special case it here by promoting
618 * to an int rather than introducing a new type. */
619 v
->value_int
= ctx
->Line
.StipplePattern
;
622 case GL_CURRENT_RASTER_TEXTURE_COORDS
:
623 unit
= ctx
->Texture
.CurrentUnit
;
624 v
->value_float_4
[0] = ctx
->Current
.RasterTexCoords
[unit
][0];
625 v
->value_float_4
[1] = ctx
->Current
.RasterTexCoords
[unit
][1];
626 v
->value_float_4
[2] = ctx
->Current
.RasterTexCoords
[unit
][2];
627 v
->value_float_4
[3] = ctx
->Current
.RasterTexCoords
[unit
][3];
630 case GL_CURRENT_TEXTURE_COORDS
:
631 unit
= ctx
->Texture
.CurrentUnit
;
632 v
->value_float_4
[0] = ctx
->Current
.Attrib
[VERT_ATTRIB_TEX0
+ unit
][0];
633 v
->value_float_4
[1] = ctx
->Current
.Attrib
[VERT_ATTRIB_TEX0
+ unit
][1];
634 v
->value_float_4
[2] = ctx
->Current
.Attrib
[VERT_ATTRIB_TEX0
+ unit
][2];
635 v
->value_float_4
[3] = ctx
->Current
.Attrib
[VERT_ATTRIB_TEX0
+ unit
][3];
638 case GL_COLOR_WRITEMASK
:
639 v
->value_int_4
[0] = ctx
->Color
.ColorMask
[0][RCOMP
] ? 1 : 0;
640 v
->value_int_4
[1] = ctx
->Color
.ColorMask
[0][GCOMP
] ? 1 : 0;
641 v
->value_int_4
[2] = ctx
->Color
.ColorMask
[0][BCOMP
] ? 1 : 0;
642 v
->value_int_4
[3] = ctx
->Color
.ColorMask
[0][ACOMP
] ? 1 : 0;
646 v
->value_bool
= ctx
->Current
.Attrib
[VERT_ATTRIB_EDGEFLAG
][0] == 1.0F
;
650 v
->value_enum
= ctx
->ReadBuffer
->ColorReadBuffer
;
653 case GL_MAP2_GRID_DOMAIN
:
654 v
->value_float_4
[0] = ctx
->Eval
.MapGrid2u1
;
655 v
->value_float_4
[1] = ctx
->Eval
.MapGrid2u2
;
656 v
->value_float_4
[2] = ctx
->Eval
.MapGrid2v1
;
657 v
->value_float_4
[3] = ctx
->Eval
.MapGrid2v2
;
660 case GL_TEXTURE_STACK_DEPTH
:
661 unit
= ctx
->Texture
.CurrentUnit
;
662 v
->value_int
= ctx
->TextureMatrixStack
[unit
].Depth
+ 1;
664 case GL_TEXTURE_MATRIX
:
665 unit
= ctx
->Texture
.CurrentUnit
;
666 v
->value_matrix
= ctx
->TextureMatrixStack
[unit
].Top
;
669 case GL_TEXTURE_COORD_ARRAY
:
670 case GL_TEXTURE_COORD_ARRAY_SIZE
:
671 case GL_TEXTURE_COORD_ARRAY_TYPE
:
672 case GL_TEXTURE_COORD_ARRAY_STRIDE
:
673 array
= &ctx
->Array
.VAO
->VertexAttrib
[VERT_ATTRIB_TEX(ctx
->Array
.ActiveTexture
)];
674 v
->value_int
= *(GLuint
*) ((char *) array
+ d
->offset
);
677 case GL_ACTIVE_TEXTURE_ARB
:
678 v
->value_int
= GL_TEXTURE0_ARB
+ ctx
->Texture
.CurrentUnit
;
680 case GL_CLIENT_ACTIVE_TEXTURE_ARB
:
681 v
->value_int
= GL_TEXTURE0_ARB
+ ctx
->Array
.ActiveTexture
;
684 case GL_MODELVIEW_STACK_DEPTH
:
685 case GL_PROJECTION_STACK_DEPTH
:
686 v
->value_int
= *(GLint
*) ((char *) ctx
+ d
->offset
) + 1;
689 case GL_MAX_TEXTURE_SIZE
:
690 case GL_MAX_3D_TEXTURE_SIZE
:
691 case GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB
:
692 p
= (GLuint
*) ((char *) ctx
+ d
->offset
);
693 v
->value_int
= 1 << (*p
- 1);
697 v
->value_int_4
[0] = ctx
->Scissor
.ScissorArray
[0].X
;
698 v
->value_int_4
[1] = ctx
->Scissor
.ScissorArray
[0].Y
;
699 v
->value_int_4
[2] = ctx
->Scissor
.ScissorArray
[0].Width
;
700 v
->value_int_4
[3] = ctx
->Scissor
.ScissorArray
[0].Height
;
703 case GL_SCISSOR_TEST
:
704 v
->value_bool
= ctx
->Scissor
.EnableFlags
& 1;
709 ctx
->ListState
.CurrentList
? ctx
->ListState
.CurrentList
->Name
: 0;
712 if (!ctx
->CompileFlag
)
714 else if (ctx
->ExecuteFlag
)
715 v
->value_enum
= GL_COMPILE_AND_EXECUTE
;
717 v
->value_enum
= GL_COMPILE
;
721 v
->value_float_4
[0] = ctx
->ViewportArray
[0].X
;
722 v
->value_float_4
[1] = ctx
->ViewportArray
[0].Y
;
723 v
->value_float_4
[2] = ctx
->ViewportArray
[0].Width
;
724 v
->value_float_4
[3] = ctx
->ViewportArray
[0].Height
;
728 v
->value_double_2
[0] = ctx
->ViewportArray
[0].Near
;
729 v
->value_double_2
[1] = ctx
->ViewportArray
[0].Far
;
732 case GL_ACTIVE_STENCIL_FACE_EXT
:
733 v
->value_enum
= ctx
->Stencil
.ActiveFace
? GL_BACK
: GL_FRONT
;
736 case GL_STENCIL_FAIL
:
737 v
->value_enum
= ctx
->Stencil
.FailFunc
[ctx
->Stencil
.ActiveFace
];
739 case GL_STENCIL_FUNC
:
740 v
->value_enum
= ctx
->Stencil
.Function
[ctx
->Stencil
.ActiveFace
];
742 case GL_STENCIL_PASS_DEPTH_FAIL
:
743 v
->value_enum
= ctx
->Stencil
.ZFailFunc
[ctx
->Stencil
.ActiveFace
];
745 case GL_STENCIL_PASS_DEPTH_PASS
:
746 v
->value_enum
= ctx
->Stencil
.ZPassFunc
[ctx
->Stencil
.ActiveFace
];
749 v
->value_int
= _mesa_get_stencil_ref(ctx
, ctx
->Stencil
.ActiveFace
);
751 case GL_STENCIL_BACK_REF
:
752 v
->value_int
= _mesa_get_stencil_ref(ctx
, 1);
754 case GL_STENCIL_VALUE_MASK
:
755 v
->value_int
= ctx
->Stencil
.ValueMask
[ctx
->Stencil
.ActiveFace
];
757 case GL_STENCIL_WRITEMASK
:
758 v
->value_int
= ctx
->Stencil
.WriteMask
[ctx
->Stencil
.ActiveFace
];
761 case GL_NUM_EXTENSIONS
:
762 v
->value_int
= _mesa_get_extension_count(ctx
);
765 case GL_IMPLEMENTATION_COLOR_READ_TYPE_OES
:
766 v
->value_int
= _mesa_get_color_read_type(ctx
);
768 case GL_IMPLEMENTATION_COLOR_READ_FORMAT_OES
:
769 v
->value_int
= _mesa_get_color_read_format(ctx
);
772 case GL_CURRENT_MATRIX_STACK_DEPTH_ARB
:
773 v
->value_int
= ctx
->CurrentStack
->Depth
+ 1;
775 case GL_CURRENT_MATRIX_ARB
:
776 case GL_TRANSPOSE_CURRENT_MATRIX_ARB
:
777 v
->value_matrix
= ctx
->CurrentStack
->Top
;
780 case GL_NUM_COMPRESSED_TEXTURE_FORMATS_ARB
:
781 v
->value_int
= _mesa_get_compressed_formats(ctx
, NULL
);
783 case GL_COMPRESSED_TEXTURE_FORMATS_ARB
:
785 _mesa_get_compressed_formats(ctx
, v
->value_int_n
.ints
);
786 assert(v
->value_int_n
.n
<= (int) ARRAY_SIZE(v
->value_int_n
.ints
));
789 case GL_MAX_VARYING_FLOATS_ARB
:
790 v
->value_int
= ctx
->Const
.MaxVarying
* 4;
793 /* Various object names */
795 case GL_TEXTURE_BINDING_1D
:
796 case GL_TEXTURE_BINDING_2D
:
797 case GL_TEXTURE_BINDING_3D
:
798 case GL_TEXTURE_BINDING_1D_ARRAY_EXT
:
799 case GL_TEXTURE_BINDING_2D_ARRAY_EXT
:
800 case GL_TEXTURE_BINDING_CUBE_MAP_ARB
:
801 case GL_TEXTURE_BINDING_RECTANGLE_NV
:
802 case GL_TEXTURE_BINDING_EXTERNAL_OES
:
803 case GL_TEXTURE_BINDING_CUBE_MAP_ARRAY
:
804 case GL_TEXTURE_BINDING_2D_MULTISAMPLE
:
805 case GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY
:
806 unit
= ctx
->Texture
.CurrentUnit
;
808 ctx
->Texture
.Unit
[unit
].CurrentTex
[d
->offset
]->Name
;
811 /* GL_EXT_packed_float */
812 case GL_RGBA_SIGNED_COMPONENTS_EXT
:
814 /* Note: we only check the 0th color attachment. */
815 const struct gl_renderbuffer
*rb
=
816 ctx
->DrawBuffer
->_ColorDrawBuffers
[0];
817 if (rb
&& _mesa_is_format_signed(rb
->Format
)) {
818 /* Issue 17 of GL_EXT_packed_float: If a component (such as
819 * alpha) has zero bits, the component should not be considered
820 * signed and so the bit for the respective component should be
824 _mesa_get_format_bits(rb
->Format
, GL_RED_BITS
);
826 _mesa_get_format_bits(rb
->Format
, GL_GREEN_BITS
);
828 _mesa_get_format_bits(rb
->Format
, GL_BLUE_BITS
);
830 _mesa_get_format_bits(rb
->Format
, GL_ALPHA_BITS
);
832 _mesa_get_format_bits(rb
->Format
, GL_TEXTURE_LUMINANCE_SIZE
);
834 _mesa_get_format_bits(rb
->Format
, GL_TEXTURE_INTENSITY_SIZE
);
836 v
->value_int_4
[0] = r_bits
+ l_bits
+ i_bits
> 0;
837 v
->value_int_4
[1] = g_bits
+ l_bits
+ i_bits
> 0;
838 v
->value_int_4
[2] = b_bits
+ l_bits
+ i_bits
> 0;
839 v
->value_int_4
[3] = a_bits
+ i_bits
> 0;
845 v
->value_int_4
[3] = 0;
850 /* GL_ARB_vertex_buffer_object */
851 case GL_VERTEX_ARRAY_BUFFER_BINDING_ARB
:
852 case GL_NORMAL_ARRAY_BUFFER_BINDING_ARB
:
853 case GL_COLOR_ARRAY_BUFFER_BINDING_ARB
:
854 case GL_INDEX_ARRAY_BUFFER_BINDING_ARB
:
855 case GL_EDGE_FLAG_ARRAY_BUFFER_BINDING_ARB
:
856 case GL_SECONDARY_COLOR_ARRAY_BUFFER_BINDING_ARB
:
857 case GL_FOG_COORDINATE_ARRAY_BUFFER_BINDING_ARB
:
858 buffer_obj
= (struct gl_buffer_object
**)
859 ((char *) ctx
->Array
.VAO
+ d
->offset
);
860 v
->value_int
= (*buffer_obj
)->Name
;
862 case GL_ARRAY_BUFFER_BINDING_ARB
:
863 v
->value_int
= ctx
->Array
.ArrayBufferObj
->Name
;
865 case GL_TEXTURE_COORD_ARRAY_BUFFER_BINDING_ARB
:
867 ctx
->Array
.VAO
->VertexBinding
[VERT_ATTRIB_TEX(ctx
->Array
.ActiveTexture
)].BufferObj
->Name
;
869 case GL_ELEMENT_ARRAY_BUFFER_BINDING_ARB
:
870 v
->value_int
= ctx
->Array
.VAO
->IndexBufferObj
->Name
;
873 /* ARB_vertex_array_bgra */
874 case GL_COLOR_ARRAY_SIZE
:
875 array
= &ctx
->Array
.VAO
->VertexAttrib
[VERT_ATTRIB_COLOR0
];
876 v
->value_int
= array
->Format
== GL_BGRA
? GL_BGRA
: array
->Size
;
878 case GL_SECONDARY_COLOR_ARRAY_SIZE
:
879 array
= &ctx
->Array
.VAO
->VertexAttrib
[VERT_ATTRIB_COLOR1
];
880 v
->value_int
= array
->Format
== GL_BGRA
? GL_BGRA
: array
->Size
;
883 /* ARB_copy_buffer */
884 case GL_COPY_READ_BUFFER
:
885 v
->value_int
= ctx
->CopyReadBuffer
->Name
;
887 case GL_COPY_WRITE_BUFFER
:
888 v
->value_int
= ctx
->CopyWriteBuffer
->Name
;
891 case GL_PIXEL_PACK_BUFFER_BINDING_EXT
:
892 v
->value_int
= ctx
->Pack
.BufferObj
->Name
;
894 case GL_PIXEL_UNPACK_BUFFER_BINDING_EXT
:
895 v
->value_int
= ctx
->Unpack
.BufferObj
->Name
;
897 case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING
:
898 v
->value_int
= ctx
->TransformFeedback
.CurrentBuffer
->Name
;
900 case GL_TRANSFORM_FEEDBACK_BUFFER_PAUSED
:
901 v
->value_int
= ctx
->TransformFeedback
.CurrentObject
->Paused
;
903 case GL_TRANSFORM_FEEDBACK_BUFFER_ACTIVE
:
904 v
->value_int
= ctx
->TransformFeedback
.CurrentObject
->Active
;
906 case GL_TRANSFORM_FEEDBACK_BINDING
:
907 v
->value_int
= ctx
->TransformFeedback
.CurrentObject
->Name
;
909 case GL_CURRENT_PROGRAM
:
910 /* The Changelog of the ARB_separate_shader_objects spec says:
912 * 24 25 Jul 2011 pbrown Remove the language erroneously deleting
913 * CURRENT_PROGRAM. In the EXT extension, this
914 * token was aliased to ACTIVE_PROGRAM_EXT, and
915 * was used to indicate the last program set by
916 * either ActiveProgramEXT or UseProgram. In
917 * the ARB extension, the SSO active programs
918 * are now program pipeline object state and
919 * CURRENT_PROGRAM should still be used to query
920 * the last program set by UseProgram (bug 7822).
923 ctx
->Shader
.ActiveProgram
? ctx
->Shader
.ActiveProgram
->Name
: 0;
925 case GL_READ_FRAMEBUFFER_BINDING_EXT
:
926 v
->value_int
= ctx
->ReadBuffer
->Name
;
928 case GL_RENDERBUFFER_BINDING_EXT
:
930 ctx
->CurrentRenderbuffer
? ctx
->CurrentRenderbuffer
->Name
: 0;
932 case GL_POINT_SIZE_ARRAY_BUFFER_BINDING_OES
:
933 v
->value_int
= ctx
->Array
.VAO
->VertexBinding
[VERT_ATTRIB_POINT_SIZE
].BufferObj
->Name
;
937 if (_mesa_get_clamp_fragment_color(ctx
, ctx
->DrawBuffer
))
938 COPY_4FV(v
->value_float_4
, ctx
->Fog
.Color
);
940 COPY_4FV(v
->value_float_4
, ctx
->Fog
.ColorUnclamped
);
942 case GL_COLOR_CLEAR_VALUE
:
943 if (_mesa_get_clamp_fragment_color(ctx
, ctx
->DrawBuffer
)) {
944 v
->value_float_4
[0] = CLAMP(ctx
->Color
.ClearColor
.f
[0], 0.0F
, 1.0F
);
945 v
->value_float_4
[1] = CLAMP(ctx
->Color
.ClearColor
.f
[1], 0.0F
, 1.0F
);
946 v
->value_float_4
[2] = CLAMP(ctx
->Color
.ClearColor
.f
[2], 0.0F
, 1.0F
);
947 v
->value_float_4
[3] = CLAMP(ctx
->Color
.ClearColor
.f
[3], 0.0F
, 1.0F
);
949 COPY_4FV(v
->value_float_4
, ctx
->Color
.ClearColor
.f
);
951 case GL_BLEND_COLOR_EXT
:
952 if (_mesa_get_clamp_fragment_color(ctx
, ctx
->DrawBuffer
))
953 COPY_4FV(v
->value_float_4
, ctx
->Color
.BlendColor
);
955 COPY_4FV(v
->value_float_4
, ctx
->Color
.BlendColorUnclamped
);
957 case GL_ALPHA_TEST_REF
:
958 if (_mesa_get_clamp_fragment_color(ctx
, ctx
->DrawBuffer
))
959 v
->value_float
= ctx
->Color
.AlphaRef
;
961 v
->value_float
= ctx
->Color
.AlphaRefUnclamped
;
963 case GL_MAX_VERTEX_UNIFORM_VECTORS
:
964 v
->value_int
= ctx
->Const
.Program
[MESA_SHADER_VERTEX
].MaxUniformComponents
/ 4;
967 case GL_MAX_FRAGMENT_UNIFORM_VECTORS
:
968 v
->value_int
= ctx
->Const
.Program
[MESA_SHADER_FRAGMENT
].MaxUniformComponents
/ 4;
971 /* GL_ARB_texture_buffer_object */
972 case GL_TEXTURE_BUFFER_ARB
:
973 v
->value_int
= ctx
->Texture
.BufferObject
->Name
;
975 case GL_TEXTURE_BINDING_BUFFER_ARB
:
976 unit
= ctx
->Texture
.CurrentUnit
;
978 ctx
->Texture
.Unit
[unit
].CurrentTex
[TEXTURE_BUFFER_INDEX
]->Name
;
980 case GL_TEXTURE_BUFFER_DATA_STORE_BINDING_ARB
:
982 struct gl_buffer_object
*buf
=
983 ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
]
984 .CurrentTex
[TEXTURE_BUFFER_INDEX
]->BufferObject
;
985 v
->value_int
= buf
? buf
->Name
: 0;
988 case GL_TEXTURE_BUFFER_FORMAT_ARB
:
989 v
->value_int
= ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
]
990 .CurrentTex
[TEXTURE_BUFFER_INDEX
]->BufferObjectFormat
;
993 /* GL_ARB_sampler_objects */
994 case GL_SAMPLER_BINDING
:
996 struct gl_sampler_object
*samp
=
997 ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
].Sampler
;
998 v
->value_int
= samp
? samp
->Name
: 0;
1001 /* GL_ARB_uniform_buffer_object */
1002 case GL_UNIFORM_BUFFER_BINDING
:
1003 v
->value_int
= ctx
->UniformBuffer
->Name
;
1005 /* GL_ARB_shader_storage_buffer_object */
1006 case GL_SHADER_STORAGE_BUFFER_BINDING
:
1007 v
->value_int
= ctx
->ShaderStorageBuffer
->Name
;
1009 /* GL_ARB_timer_query */
1011 if (ctx
->Driver
.GetTimestamp
) {
1012 v
->value_int64
= ctx
->Driver
.GetTimestamp(ctx
);
1015 _mesa_problem(ctx
, "driver doesn't implement GetTimestamp");
1019 case GL_DEBUG_LOGGED_MESSAGES
:
1020 case GL_DEBUG_NEXT_LOGGED_MESSAGE_LENGTH
:
1021 case GL_DEBUG_GROUP_STACK_DEPTH
:
1022 v
->value_int
= _mesa_get_debug_state_int(ctx
, d
->pname
);
1024 /* GL_ARB_shader_atomic_counters */
1025 case GL_ATOMIC_COUNTER_BUFFER_BINDING
:
1026 if (ctx
->AtomicBuffer
) {
1027 v
->value_int
= ctx
->AtomicBuffer
->Name
;
1032 /* GL_ARB_draw_indirect */
1033 case GL_DRAW_INDIRECT_BUFFER_BINDING
:
1034 v
->value_int
= ctx
->DrawIndirectBuffer
->Name
;
1036 /* GL_ARB_indirect_parameters */
1037 case GL_PARAMETER_BUFFER_BINDING_ARB
:
1038 v
->value_int
= ctx
->ParameterBuffer
->Name
;
1040 /* GL_ARB_separate_shader_objects */
1041 case GL_PROGRAM_PIPELINE_BINDING
:
1042 if (ctx
->Pipeline
.Current
) {
1043 v
->value_int
= ctx
->Pipeline
.Current
->Name
;
1048 /* GL_ARB_compute_shader */
1049 case GL_DISPATCH_INDIRECT_BUFFER_BINDING
:
1050 v
->value_int
= ctx
->DispatchIndirectBuffer
->Name
;
1056 * Check extra constraints on a struct value_desc descriptor
1058 * If a struct value_desc has a non-NULL extra pointer, it means that
1059 * there are a number of extra constraints to check or actions to
1060 * perform. The extras is just an integer array where each integer
1061 * encode different constraints or actions.
1063 * \param ctx current context
1064 * \param func name of calling glGet*v() function for error reporting
1065 * \param d the struct value_desc that has the extra constraints
1067 * \return GL_FALSE if all of the constraints were not satisfied,
1068 * otherwise GL_TRUE.
1071 check_extra(struct gl_context
*ctx
, const char *func
, const struct value_desc
*d
)
1073 const GLuint version
= ctx
->Version
;
1074 GLboolean api_check
= GL_FALSE
;
1075 GLboolean api_found
= GL_FALSE
;
1078 for (e
= d
->extra
; *e
!= EXTRA_END
; e
++) {
1080 case EXTRA_VERSION_30
:
1081 api_check
= GL_TRUE
;
1083 api_found
= GL_TRUE
;
1085 case EXTRA_VERSION_31
:
1086 api_check
= GL_TRUE
;
1088 api_found
= GL_TRUE
;
1090 case EXTRA_VERSION_32
:
1091 api_check
= GL_TRUE
;
1093 api_found
= GL_TRUE
;
1095 case EXTRA_NEW_FRAG_CLAMP
:
1096 if (ctx
->NewState
& (_NEW_BUFFERS
| _NEW_FRAG_CLAMP
))
1097 _mesa_update_state(ctx
);
1100 api_check
= GL_TRUE
;
1101 if (ctx
->API
== API_OPENGLES2
)
1102 api_found
= GL_TRUE
;
1105 api_check
= GL_TRUE
;
1106 if (_mesa_is_gles3(ctx
))
1107 api_found
= GL_TRUE
;
1109 case EXTRA_API_ES31
:
1110 api_check
= GL_TRUE
;
1111 if (_mesa_is_gles31(ctx
))
1112 api_found
= GL_TRUE
;
1115 api_check
= GL_TRUE
;
1116 if (_mesa_is_desktop_gl(ctx
))
1117 api_found
= GL_TRUE
;
1119 case EXTRA_API_GL_CORE
:
1120 api_check
= GL_TRUE
;
1121 if (ctx
->API
== API_OPENGL_CORE
)
1122 api_found
= GL_TRUE
;
1124 case EXTRA_NEW_BUFFERS
:
1125 if (ctx
->NewState
& _NEW_BUFFERS
)
1126 _mesa_update_state(ctx
);
1128 case EXTRA_FLUSH_CURRENT
:
1129 FLUSH_CURRENT(ctx
, 0);
1131 case EXTRA_VALID_DRAW_BUFFER
:
1132 if (d
->pname
- GL_DRAW_BUFFER0_ARB
>= ctx
->Const
.MaxDrawBuffers
) {
1133 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(draw buffer %u)",
1134 func
, d
->pname
- GL_DRAW_BUFFER0_ARB
);
1138 case EXTRA_VALID_TEXTURE_UNIT
:
1139 if (ctx
->Texture
.CurrentUnit
>= ctx
->Const
.MaxTextureCoordUnits
) {
1140 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(texture %u)",
1141 func
, ctx
->Texture
.CurrentUnit
);
1145 case EXTRA_VALID_CLIP_DISTANCE
:
1146 if (d
->pname
- GL_CLIP_DISTANCE0
>= ctx
->Const
.MaxClipPlanes
) {
1147 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(clip distance %u)",
1148 func
, d
->pname
- GL_CLIP_DISTANCE0
);
1152 case EXTRA_GLSL_130
:
1153 api_check
= GL_TRUE
;
1154 if (ctx
->Const
.GLSLVersion
>= 130)
1155 api_found
= GL_TRUE
;
1157 case EXTRA_EXT_UBO_GS4
:
1158 api_check
= GL_TRUE
;
1159 api_found
= (ctx
->Extensions
.ARB_uniform_buffer_object
&&
1160 _mesa_has_geometry_shaders(ctx
));
1162 case EXTRA_EXT_ATOMICS_GS4
:
1163 api_check
= GL_TRUE
;
1164 api_found
= (ctx
->Extensions
.ARB_shader_atomic_counters
&&
1165 _mesa_has_geometry_shaders(ctx
));
1167 case EXTRA_EXT_SHADER_IMAGE_GS4
:
1168 api_check
= GL_TRUE
;
1169 api_found
= (ctx
->Extensions
.ARB_shader_image_load_store
&&
1170 _mesa_has_geometry_shaders(ctx
));
1172 case EXTRA_EXT_ATOMICS_TESS
:
1173 api_check
= GL_TRUE
;
1174 api_found
= ctx
->Extensions
.ARB_shader_atomic_counters
&&
1175 _mesa_has_tessellation(ctx
);
1177 case EXTRA_EXT_SHADER_IMAGE_TESS
:
1178 api_check
= GL_TRUE
;
1179 api_found
= ctx
->Extensions
.ARB_shader_image_load_store
&&
1180 _mesa_has_tessellation(ctx
);
1184 default: /* *e is a offset into the extension struct */
1185 api_check
= GL_TRUE
;
1186 if (*(GLboolean
*) ((char *) &ctx
->Extensions
+ *e
))
1187 api_found
= GL_TRUE
;
1192 if (api_check
&& !api_found
) {
1193 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=%s)", func
,
1194 _mesa_enum_to_string(d
->pname
));
1201 static const struct value_desc error_value
=
1202 { 0, 0, TYPE_INVALID
, NO_OFFSET
, NO_EXTRA
};
1205 * Find the struct value_desc corresponding to the enum 'pname'.
1207 * We hash the enum value to get an index into the 'table' array,
1208 * which holds the index in the 'values' array of struct value_desc.
1209 * Once we've found the entry, we do the extra checks, if any, then
1210 * look up the value and return a pointer to it.
1212 * If the value has to be computed (for example, it's the result of a
1213 * function call or we need to add 1 to it), we use the tmp 'v' to
1216 * \param func name of glGet*v() func for error reporting
1217 * \param pname the enum value we're looking up
1218 * \param p is were we return the pointer to the value
1219 * \param v a tmp union value variable in the calling glGet*v() function
1221 * \return the struct value_desc corresponding to the enum or a struct
1222 * value_desc of TYPE_INVALID if not found. This lets the calling
1223 * glGet*v() function jump right into a switch statement and
1224 * handle errors there instead of having to check for NULL.
1226 static const struct value_desc
*
1227 find_value(const char *func
, GLenum pname
, void **p
, union value
*v
)
1229 GET_CURRENT_CONTEXT(ctx
);
1230 struct gl_texture_unit
*unit
;
1232 const struct value_desc
*d
;
1236 /* We index into the table_set[] list of per-API hash tables using the API's
1237 * value in the gl_api enum. Since GLES 3 doesn't have an API_OPENGL* enum
1238 * value since it's compatible with GLES2 its entry in table_set[] is at the
1241 STATIC_ASSERT(ARRAY_SIZE(table_set
) == API_OPENGL_LAST
+ 3);
1242 if (_mesa_is_gles3(ctx
)) {
1243 api
= API_OPENGL_LAST
+ 1;
1245 if (_mesa_is_gles31(ctx
)) {
1246 api
= API_OPENGL_LAST
+ 2;
1248 mask
= ARRAY_SIZE(table(api
)) - 1;
1249 hash
= (pname
* prime_factor
);
1251 int idx
= table(api
)[hash
& mask
];
1253 /* If the enum isn't valid, the hash walk ends with index 0,
1254 * pointing to the first entry of values[] which doesn't hold
1255 * any valid enum. */
1256 if (unlikely(idx
== 0)) {
1257 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=%s)", func
,
1258 _mesa_enum_to_string(pname
));
1259 return &error_value
;
1263 if (likely(d
->pname
== pname
))
1269 if (unlikely(d
->extra
&& !check_extra(ctx
, func
, d
)))
1270 return &error_value
;
1272 switch (d
->location
) {
1274 *p
= ((char *) ctx
->DrawBuffer
+ d
->offset
);
1277 *p
= ((char *) ctx
+ d
->offset
);
1280 *p
= ((char *) ctx
->Array
.VAO
+ d
->offset
);
1283 unit
= &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1284 *p
= ((char *) unit
+ d
->offset
);
1287 find_custom_value(ctx
, d
, v
);
1295 /* silence warning */
1296 return &error_value
;
1299 static const int transpose
[] = {
1307 _mesa_GetBooleanv(GLenum pname
, GLboolean
*params
)
1309 const struct value_desc
*d
;
1315 d
= find_value("glGetBooleanv", pname
, &p
, &v
);
1320 params
[0] = INT_TO_BOOLEAN(d
->offset
);
1325 params
[3] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[3]);
1328 params
[2] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[2]);
1331 params
[1] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[1]);
1334 params
[0] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[0]);
1337 case TYPE_DOUBLEN_2
:
1338 params
[1] = FLOAT_TO_BOOLEAN(((GLdouble
*) p
)[1]);
1340 params
[0] = FLOAT_TO_BOOLEAN(((GLdouble
*) p
)[0]);
1344 params
[3] = INT_TO_BOOLEAN(((GLint
*) p
)[3]);
1346 params
[2] = INT_TO_BOOLEAN(((GLint
*) p
)[2]);
1349 params
[1] = INT_TO_BOOLEAN(((GLint
*) p
)[1]);
1352 params
[0] = INT_TO_BOOLEAN(((GLint
*) p
)[0]);
1356 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1357 params
[i
] = INT_TO_BOOLEAN(v
.value_int_n
.ints
[i
]);
1361 params
[0] = INT64_TO_BOOLEAN(((GLint64
*) p
)[0]);
1365 params
[0] = ((GLboolean
*) p
)[0];
1369 m
= *(GLmatrix
**) p
;
1370 for (i
= 0; i
< 16; i
++)
1371 params
[i
] = FLOAT_TO_BOOLEAN(m
->m
[i
]);
1375 m
= *(GLmatrix
**) p
;
1376 for (i
= 0; i
< 16; i
++)
1377 params
[i
] = FLOAT_TO_BOOLEAN(m
->m
[transpose
[i
]]);
1388 shift
= d
->type
- TYPE_BIT_0
;
1389 params
[0] = (*(GLbitfield
*) p
>> shift
) & 1;
1395 _mesa_GetFloatv(GLenum pname
, GLfloat
*params
)
1397 const struct value_desc
*d
;
1403 d
= find_value("glGetFloatv", pname
, &p
, &v
);
1408 params
[0] = (GLfloat
) d
->offset
;
1413 params
[3] = ((GLfloat
*) p
)[3];
1416 params
[2] = ((GLfloat
*) p
)[2];
1419 params
[1] = ((GLfloat
*) p
)[1];
1422 params
[0] = ((GLfloat
*) p
)[0];
1425 case TYPE_DOUBLEN_2
:
1426 params
[1] = (GLfloat
) (((GLdouble
*) p
)[1]);
1428 params
[0] = (GLfloat
) (((GLdouble
*) p
)[0]);
1432 params
[3] = (GLfloat
) (((GLint
*) p
)[3]);
1434 params
[2] = (GLfloat
) (((GLint
*) p
)[2]);
1437 params
[1] = (GLfloat
) (((GLint
*) p
)[1]);
1440 params
[0] = (GLfloat
) (((GLint
*) p
)[0]);
1444 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1445 params
[i
] = INT_TO_FLOAT(v
.value_int_n
.ints
[i
]);
1449 params
[0] = (GLfloat
) (((GLint64
*) p
)[0]);
1453 params
[0] = BOOLEAN_TO_FLOAT(*(GLboolean
*) p
);
1457 m
= *(GLmatrix
**) p
;
1458 for (i
= 0; i
< 16; i
++)
1459 params
[i
] = m
->m
[i
];
1463 m
= *(GLmatrix
**) p
;
1464 for (i
= 0; i
< 16; i
++)
1465 params
[i
] = m
->m
[transpose
[i
]];
1476 shift
= d
->type
- TYPE_BIT_0
;
1477 params
[0] = BOOLEAN_TO_FLOAT((*(GLbitfield
*) p
>> shift
) & 1);
1483 _mesa_GetIntegerv(GLenum pname
, GLint
*params
)
1485 const struct value_desc
*d
;
1491 d
= find_value("glGetIntegerv", pname
, &p
, &v
);
1496 params
[0] = d
->offset
;
1500 params
[3] = IROUND(((GLfloat
*) p
)[3]);
1502 params
[2] = IROUND(((GLfloat
*) p
)[2]);
1504 params
[1] = IROUND(((GLfloat
*) p
)[1]);
1506 params
[0] = IROUND(((GLfloat
*) p
)[0]);
1510 params
[3] = FLOAT_TO_INT(((GLfloat
*) p
)[3]);
1512 params
[2] = FLOAT_TO_INT(((GLfloat
*) p
)[2]);
1514 params
[1] = FLOAT_TO_INT(((GLfloat
*) p
)[1]);
1516 params
[0] = FLOAT_TO_INT(((GLfloat
*) p
)[0]);
1519 case TYPE_DOUBLEN_2
:
1520 params
[1] = FLOAT_TO_INT(((GLdouble
*) p
)[1]);
1522 params
[0] = FLOAT_TO_INT(((GLdouble
*) p
)[0]);
1526 params
[3] = ((GLint
*) p
)[3];
1528 params
[2] = ((GLint
*) p
)[2];
1531 params
[1] = ((GLint
*) p
)[1];
1534 params
[0] = ((GLint
*) p
)[0];
1538 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1539 params
[i
] = v
.value_int_n
.ints
[i
];
1543 params
[0] = INT64_TO_INT(((GLint64
*) p
)[0]);
1547 params
[0] = BOOLEAN_TO_INT(*(GLboolean
*) p
);
1551 m
= *(GLmatrix
**) p
;
1552 for (i
= 0; i
< 16; i
++)
1553 params
[i
] = FLOAT_TO_INT(m
->m
[i
]);
1557 m
= *(GLmatrix
**) p
;
1558 for (i
= 0; i
< 16; i
++)
1559 params
[i
] = FLOAT_TO_INT(m
->m
[transpose
[i
]]);
1570 shift
= d
->type
- TYPE_BIT_0
;
1571 params
[0] = (*(GLbitfield
*) p
>> shift
) & 1;
1577 _mesa_GetInteger64v(GLenum pname
, GLint64
*params
)
1579 const struct value_desc
*d
;
1585 d
= find_value("glGetInteger64v", pname
, &p
, &v
);
1590 params
[0] = d
->offset
;
1594 params
[3] = IROUND64(((GLfloat
*) p
)[3]);
1596 params
[2] = IROUND64(((GLfloat
*) p
)[2]);
1598 params
[1] = IROUND64(((GLfloat
*) p
)[1]);
1600 params
[0] = IROUND64(((GLfloat
*) p
)[0]);
1604 params
[3] = FLOAT_TO_INT64(((GLfloat
*) p
)[3]);
1606 params
[2] = FLOAT_TO_INT64(((GLfloat
*) p
)[2]);
1608 params
[1] = FLOAT_TO_INT64(((GLfloat
*) p
)[1]);
1610 params
[0] = FLOAT_TO_INT64(((GLfloat
*) p
)[0]);
1613 case TYPE_DOUBLEN_2
:
1614 params
[1] = FLOAT_TO_INT64(((GLdouble
*) p
)[1]);
1616 params
[0] = FLOAT_TO_INT64(((GLdouble
*) p
)[0]);
1620 params
[3] = ((GLint
*) p
)[3];
1622 params
[2] = ((GLint
*) p
)[2];
1625 params
[1] = ((GLint
*) p
)[1];
1628 params
[0] = ((GLint
*) p
)[0];
1632 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1633 params
[i
] = INT_TO_BOOLEAN(v
.value_int_n
.ints
[i
]);
1637 params
[0] = ((GLint64
*) p
)[0];
1641 params
[0] = ((GLboolean
*) p
)[0];
1645 m
= *(GLmatrix
**) p
;
1646 for (i
= 0; i
< 16; i
++)
1647 params
[i
] = FLOAT_TO_INT64(m
->m
[i
]);
1651 m
= *(GLmatrix
**) p
;
1652 for (i
= 0; i
< 16; i
++)
1653 params
[i
] = FLOAT_TO_INT64(m
->m
[transpose
[i
]]);
1664 shift
= d
->type
- TYPE_BIT_0
;
1665 params
[0] = (*(GLbitfield
*) p
>> shift
) & 1;
1671 _mesa_GetDoublev(GLenum pname
, GLdouble
*params
)
1673 const struct value_desc
*d
;
1679 d
= find_value("glGetDoublev", pname
, &p
, &v
);
1684 params
[0] = d
->offset
;
1689 params
[3] = ((GLfloat
*) p
)[3];
1692 params
[2] = ((GLfloat
*) p
)[2];
1695 params
[1] = ((GLfloat
*) p
)[1];
1698 params
[0] = ((GLfloat
*) p
)[0];
1701 case TYPE_DOUBLEN_2
:
1702 params
[1] = ((GLdouble
*) p
)[1];
1704 params
[0] = ((GLdouble
*) p
)[0];
1708 params
[3] = ((GLint
*) p
)[3];
1710 params
[2] = ((GLint
*) p
)[2];
1713 params
[1] = ((GLint
*) p
)[1];
1716 params
[0] = ((GLint
*) p
)[0];
1720 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1721 params
[i
] = v
.value_int_n
.ints
[i
];
1725 params
[0] = (GLdouble
) (((GLint64
*) p
)[0]);
1729 params
[0] = *(GLboolean
*) p
;
1733 m
= *(GLmatrix
**) p
;
1734 for (i
= 0; i
< 16; i
++)
1735 params
[i
] = m
->m
[i
];
1739 m
= *(GLmatrix
**) p
;
1740 for (i
= 0; i
< 16; i
++)
1741 params
[i
] = m
->m
[transpose
[i
]];
1752 shift
= d
->type
- TYPE_BIT_0
;
1753 params
[0] = (*(GLbitfield
*) p
>> shift
) & 1;
1759 * Convert a GL texture binding enum such as GL_TEXTURE_BINDING_2D
1760 * into the corresponding Mesa texture target index.
1761 * \return TEXTURE_x_INDEX or -1 if binding is invalid
1764 tex_binding_to_index(const struct gl_context
*ctx
, GLenum binding
)
1767 case GL_TEXTURE_BINDING_1D
:
1768 return _mesa_is_desktop_gl(ctx
) ? TEXTURE_1D_INDEX
: -1;
1769 case GL_TEXTURE_BINDING_2D
:
1770 return TEXTURE_2D_INDEX
;
1771 case GL_TEXTURE_BINDING_3D
:
1772 return ctx
->API
!= API_OPENGLES
? TEXTURE_3D_INDEX
: -1;
1773 case GL_TEXTURE_BINDING_CUBE_MAP
:
1774 return ctx
->Extensions
.ARB_texture_cube_map
1775 ? TEXTURE_CUBE_INDEX
: -1;
1776 case GL_TEXTURE_BINDING_RECTANGLE
:
1777 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.NV_texture_rectangle
1778 ? TEXTURE_RECT_INDEX
: -1;
1779 case GL_TEXTURE_BINDING_1D_ARRAY
:
1780 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_array
1781 ? TEXTURE_1D_ARRAY_INDEX
: -1;
1782 case GL_TEXTURE_BINDING_2D_ARRAY
:
1783 return (_mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_array
)
1784 || _mesa_is_gles3(ctx
)
1785 ? TEXTURE_2D_ARRAY_INDEX
: -1;
1786 case GL_TEXTURE_BINDING_BUFFER
:
1787 return ctx
->API
== API_OPENGL_CORE
&&
1788 ctx
->Extensions
.ARB_texture_buffer_object
?
1789 TEXTURE_BUFFER_INDEX
: -1;
1790 case GL_TEXTURE_BINDING_CUBE_MAP_ARRAY
:
1791 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.ARB_texture_cube_map_array
1792 ? TEXTURE_CUBE_ARRAY_INDEX
: -1;
1793 case GL_TEXTURE_BINDING_2D_MULTISAMPLE
:
1794 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.ARB_texture_multisample
1795 ? TEXTURE_2D_MULTISAMPLE_INDEX
: -1;
1796 case GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY
:
1797 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.ARB_texture_multisample
1798 ? TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX
: -1;
1804 static enum value_type
1805 find_value_indexed(const char *func
, GLenum pname
, GLuint index
, union value
*v
)
1807 GET_CURRENT_CONTEXT(ctx
);
1812 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1814 if (!ctx
->Extensions
.EXT_draw_buffers2
)
1816 v
->value_int
= (ctx
->Color
.BlendEnabled
>> index
) & 1;
1821 case GL_BLEND_SRC_RGB
:
1822 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1824 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1826 v
->value_int
= ctx
->Color
.Blend
[index
].SrcRGB
;
1828 case GL_BLEND_SRC_ALPHA
:
1829 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1831 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1833 v
->value_int
= ctx
->Color
.Blend
[index
].SrcA
;
1837 case GL_BLEND_DST_RGB
:
1838 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1840 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1842 v
->value_int
= ctx
->Color
.Blend
[index
].DstRGB
;
1844 case GL_BLEND_DST_ALPHA
:
1845 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1847 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1849 v
->value_int
= ctx
->Color
.Blend
[index
].DstA
;
1851 case GL_BLEND_EQUATION_RGB
:
1852 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1854 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1856 v
->value_int
= ctx
->Color
.Blend
[index
].EquationRGB
;
1858 case GL_BLEND_EQUATION_ALPHA
:
1859 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1861 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1863 v
->value_int
= ctx
->Color
.Blend
[index
].EquationA
;
1866 case GL_COLOR_WRITEMASK
:
1867 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1869 if (!ctx
->Extensions
.EXT_draw_buffers2
)
1871 v
->value_int_4
[0] = ctx
->Color
.ColorMask
[index
][RCOMP
] ? 1 : 0;
1872 v
->value_int_4
[1] = ctx
->Color
.ColorMask
[index
][GCOMP
] ? 1 : 0;
1873 v
->value_int_4
[2] = ctx
->Color
.ColorMask
[index
][BCOMP
] ? 1 : 0;
1874 v
->value_int_4
[3] = ctx
->Color
.ColorMask
[index
][ACOMP
] ? 1 : 0;
1877 case GL_SCISSOR_BOX
:
1878 if (index
>= ctx
->Const
.MaxViewports
)
1880 v
->value_int_4
[0] = ctx
->Scissor
.ScissorArray
[index
].X
;
1881 v
->value_int_4
[1] = ctx
->Scissor
.ScissorArray
[index
].Y
;
1882 v
->value_int_4
[2] = ctx
->Scissor
.ScissorArray
[index
].Width
;
1883 v
->value_int_4
[3] = ctx
->Scissor
.ScissorArray
[index
].Height
;
1887 if (index
>= ctx
->Const
.MaxViewports
)
1889 v
->value_float_4
[0] = ctx
->ViewportArray
[index
].X
;
1890 v
->value_float_4
[1] = ctx
->ViewportArray
[index
].Y
;
1891 v
->value_float_4
[2] = ctx
->ViewportArray
[index
].Width
;
1892 v
->value_float_4
[3] = ctx
->ViewportArray
[index
].Height
;
1893 return TYPE_FLOAT_4
;
1895 case GL_DEPTH_RANGE
:
1896 if (index
>= ctx
->Const
.MaxViewports
)
1898 v
->value_double_2
[0] = ctx
->ViewportArray
[index
].Near
;
1899 v
->value_double_2
[1] = ctx
->ViewportArray
[index
].Far
;
1900 return TYPE_DOUBLEN_2
;
1902 case GL_TRANSFORM_FEEDBACK_BUFFER_START
:
1903 if (index
>= ctx
->Const
.MaxTransformFeedbackBuffers
)
1905 if (!ctx
->Extensions
.EXT_transform_feedback
)
1907 v
->value_int64
= ctx
->TransformFeedback
.CurrentObject
->Offset
[index
];
1910 case GL_TRANSFORM_FEEDBACK_BUFFER_SIZE
:
1911 if (index
>= ctx
->Const
.MaxTransformFeedbackBuffers
)
1913 if (!ctx
->Extensions
.EXT_transform_feedback
)
1916 = ctx
->TransformFeedback
.CurrentObject
->RequestedSize
[index
];
1919 case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING
:
1920 if (index
>= ctx
->Const
.MaxTransformFeedbackBuffers
)
1922 if (!ctx
->Extensions
.EXT_transform_feedback
)
1924 v
->value_int
= ctx
->TransformFeedback
.CurrentObject
->BufferNames
[index
];
1927 case GL_UNIFORM_BUFFER_BINDING
:
1928 if (index
>= ctx
->Const
.MaxUniformBufferBindings
)
1930 if (!ctx
->Extensions
.ARB_uniform_buffer_object
)
1932 v
->value_int
= ctx
->UniformBufferBindings
[index
].BufferObject
->Name
;
1935 case GL_UNIFORM_BUFFER_START
:
1936 if (index
>= ctx
->Const
.MaxUniformBufferBindings
)
1938 if (!ctx
->Extensions
.ARB_uniform_buffer_object
)
1940 v
->value_int
= ctx
->UniformBufferBindings
[index
].Offset
< 0 ? 0 :
1941 ctx
->UniformBufferBindings
[index
].Offset
;
1944 case GL_UNIFORM_BUFFER_SIZE
:
1945 if (index
>= ctx
->Const
.MaxUniformBufferBindings
)
1947 if (!ctx
->Extensions
.ARB_uniform_buffer_object
)
1949 v
->value_int
= ctx
->UniformBufferBindings
[index
].Size
< 0 ? 0 :
1950 ctx
->UniformBufferBindings
[index
].Size
;
1953 /* ARB_shader_storage_buffer_object */
1954 case GL_SHADER_STORAGE_BUFFER_BINDING
:
1955 if (!ctx
->Extensions
.ARB_shader_storage_buffer_object
)
1957 if (index
>= ctx
->Const
.MaxShaderStorageBufferBindings
)
1959 v
->value_int
= ctx
->ShaderStorageBufferBindings
[index
].BufferObject
->Name
;
1962 case GL_SHADER_STORAGE_BUFFER_START
:
1963 if (!ctx
->Extensions
.ARB_shader_storage_buffer_object
)
1965 if (index
>= ctx
->Const
.MaxShaderStorageBufferBindings
)
1967 v
->value_int
= ctx
->ShaderStorageBufferBindings
[index
].Offset
< 0 ? 0 :
1968 ctx
->ShaderStorageBufferBindings
[index
].Offset
;
1971 case GL_SHADER_STORAGE_BUFFER_SIZE
:
1972 if (!ctx
->Extensions
.ARB_shader_storage_buffer_object
)
1974 if (index
>= ctx
->Const
.MaxShaderStorageBufferBindings
)
1976 v
->value_int
= ctx
->ShaderStorageBufferBindings
[index
].Size
< 0 ? 0 :
1977 ctx
->ShaderStorageBufferBindings
[index
].Size
;
1980 /* ARB_texture_multisample / GL3.2 */
1981 case GL_SAMPLE_MASK_VALUE
:
1984 if (!ctx
->Extensions
.ARB_texture_multisample
)
1986 v
->value_int
= ctx
->Multisample
.SampleMaskValue
;
1989 case GL_ATOMIC_COUNTER_BUFFER_BINDING
:
1990 if (!ctx
->Extensions
.ARB_shader_atomic_counters
)
1992 if (index
>= ctx
->Const
.MaxAtomicBufferBindings
)
1994 v
->value_int
= ctx
->AtomicBufferBindings
[index
].BufferObject
->Name
;
1997 case GL_ATOMIC_COUNTER_BUFFER_START
:
1998 if (!ctx
->Extensions
.ARB_shader_atomic_counters
)
2000 if (index
>= ctx
->Const
.MaxAtomicBufferBindings
)
2002 v
->value_int64
= ctx
->AtomicBufferBindings
[index
].Offset
;
2005 case GL_ATOMIC_COUNTER_BUFFER_SIZE
:
2006 if (!ctx
->Extensions
.ARB_shader_atomic_counters
)
2008 if (index
>= ctx
->Const
.MaxAtomicBufferBindings
)
2010 v
->value_int64
= ctx
->AtomicBufferBindings
[index
].Size
;
2013 case GL_VERTEX_BINDING_DIVISOR
:
2014 if ((!_mesa_is_desktop_gl(ctx
) || !ctx
->Extensions
.ARB_instanced_arrays
) &&
2015 !_mesa_is_gles31(ctx
))
2017 if (index
>= ctx
->Const
.Program
[MESA_SHADER_VERTEX
].MaxAttribs
)
2019 v
->value_int
= ctx
->Array
.VAO
->VertexBinding
[VERT_ATTRIB_GENERIC(index
)].InstanceDivisor
;
2022 case GL_VERTEX_BINDING_OFFSET
:
2023 if (!_mesa_is_desktop_gl(ctx
) && !_mesa_is_gles31(ctx
))
2025 if (index
>= ctx
->Const
.Program
[MESA_SHADER_VERTEX
].MaxAttribs
)
2027 v
->value_int
= ctx
->Array
.VAO
->VertexBinding
[VERT_ATTRIB_GENERIC(index
)].Offset
;
2030 case GL_VERTEX_BINDING_STRIDE
:
2031 if (!_mesa_is_desktop_gl(ctx
) && !_mesa_is_gles31(ctx
))
2033 if (index
>= ctx
->Const
.Program
[MESA_SHADER_VERTEX
].MaxAttribs
)
2035 v
->value_int
= ctx
->Array
.VAO
->VertexBinding
[VERT_ATTRIB_GENERIC(index
)].Stride
;
2038 case GL_VERTEX_BINDING_BUFFER
:
2039 if (ctx
->API
== API_OPENGLES2
&& ctx
->Version
< 31)
2041 if (index
>= ctx
->Const
.Program
[MESA_SHADER_VERTEX
].MaxAttribs
)
2043 v
->value_int
= ctx
->Array
.VAO
->VertexBinding
[VERT_ATTRIB_GENERIC(index
)].BufferObj
->Name
;
2046 /* ARB_shader_image_load_store */
2047 case GL_IMAGE_BINDING_NAME
: {
2048 struct gl_texture_object
*t
;
2050 if (!ctx
->Extensions
.ARB_shader_image_load_store
)
2052 if (index
>= ctx
->Const
.MaxImageUnits
)
2055 t
= ctx
->ImageUnits
[index
].TexObj
;
2056 v
->value_int
= (t
? t
->Name
: 0);
2060 case GL_IMAGE_BINDING_LEVEL
:
2061 if (!ctx
->Extensions
.ARB_shader_image_load_store
)
2063 if (index
>= ctx
->Const
.MaxImageUnits
)
2066 v
->value_int
= ctx
->ImageUnits
[index
].Level
;
2069 case GL_IMAGE_BINDING_LAYERED
:
2070 if (!ctx
->Extensions
.ARB_shader_image_load_store
)
2072 if (index
>= ctx
->Const
.MaxImageUnits
)
2075 v
->value_int
= ctx
->ImageUnits
[index
].Layered
;
2078 case GL_IMAGE_BINDING_LAYER
:
2079 if (!ctx
->Extensions
.ARB_shader_image_load_store
)
2081 if (index
>= ctx
->Const
.MaxImageUnits
)
2084 v
->value_int
= ctx
->ImageUnits
[index
].Layer
;
2087 case GL_IMAGE_BINDING_ACCESS
:
2088 if (!ctx
->Extensions
.ARB_shader_image_load_store
)
2090 if (index
>= ctx
->Const
.MaxImageUnits
)
2093 v
->value_int
= ctx
->ImageUnits
[index
].Access
;
2096 case GL_IMAGE_BINDING_FORMAT
:
2097 if (!ctx
->Extensions
.ARB_shader_image_load_store
)
2099 if (index
>= ctx
->Const
.MaxImageUnits
)
2102 v
->value_int
= ctx
->ImageUnits
[index
].Format
;
2105 /* ARB_direct_state_access */
2106 case GL_TEXTURE_BINDING_1D
:
2107 case GL_TEXTURE_BINDING_1D_ARRAY
:
2108 case GL_TEXTURE_BINDING_2D
:
2109 case GL_TEXTURE_BINDING_2D_ARRAY
:
2110 case GL_TEXTURE_BINDING_2D_MULTISAMPLE
:
2111 case GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY
:
2112 case GL_TEXTURE_BINDING_3D
:
2113 case GL_TEXTURE_BINDING_BUFFER
:
2114 case GL_TEXTURE_BINDING_CUBE_MAP
:
2115 case GL_TEXTURE_BINDING_CUBE_MAP_ARRAY
:
2116 case GL_TEXTURE_BINDING_RECTANGLE
: {
2119 if (ctx
->API
!= API_OPENGL_CORE
)
2121 target
= tex_binding_to_index(ctx
, pname
);
2124 if (index
>= _mesa_max_tex_unit(ctx
))
2127 v
->value_int
= ctx
->Texture
.Unit
[index
].CurrentTex
[target
]->Name
;
2131 case GL_SAMPLER_BINDING
: {
2132 struct gl_sampler_object
*samp
;
2134 if (ctx
->API
!= API_OPENGL_CORE
)
2136 if (index
>= _mesa_max_tex_unit(ctx
))
2139 samp
= ctx
->Texture
.Unit
[index
].Sampler
;
2140 v
->value_int
= samp
? samp
->Name
: 0;
2144 case GL_MAX_COMPUTE_WORK_GROUP_COUNT
:
2145 if (!_mesa_has_compute_shaders(ctx
))
2149 v
->value_int
= ctx
->Const
.MaxComputeWorkGroupCount
[index
];
2152 case GL_MAX_COMPUTE_WORK_GROUP_SIZE
:
2153 if (!_mesa_has_compute_shaders(ctx
))
2157 v
->value_int
= ctx
->Const
.MaxComputeWorkGroupSize
[index
];
2162 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=%s)", func
,
2163 _mesa_enum_to_string(pname
));
2164 return TYPE_INVALID
;
2166 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(pname=%s)", func
,
2167 _mesa_enum_to_string(pname
));
2168 return TYPE_INVALID
;
2172 _mesa_GetBooleani_v( GLenum pname
, GLuint index
, GLboolean
*params
)
2175 enum value_type type
=
2176 find_value_indexed("glGetBooleani_v", pname
, index
, &v
);
2180 params
[0] = INT_TO_BOOLEAN(v
.value_int
);
2183 params
[0] = INT_TO_BOOLEAN(v
.value_int_4
[0]);
2184 params
[1] = INT_TO_BOOLEAN(v
.value_int_4
[1]);
2185 params
[2] = INT_TO_BOOLEAN(v
.value_int_4
[2]);
2186 params
[3] = INT_TO_BOOLEAN(v
.value_int_4
[3]);
2189 params
[0] = INT64_TO_BOOLEAN(v
.value_int64
);
2192 ; /* nothing - GL error was recorded */
2197 _mesa_GetIntegeri_v( GLenum pname
, GLuint index
, GLint
*params
)
2200 enum value_type type
=
2201 find_value_indexed("glGetIntegeri_v", pname
, index
, &v
);
2206 params
[3] = IROUND(v
.value_float_4
[3]);
2209 params
[2] = IROUND(v
.value_float_4
[2]);
2212 params
[1] = IROUND(v
.value_float_4
[1]);
2215 params
[0] = IROUND(v
.value_float_4
[0]);
2218 case TYPE_DOUBLEN_2
:
2219 params
[1] = IROUND(v
.value_double_2
[1]);
2221 params
[0] = IROUND(v
.value_double_2
[0]);
2225 params
[0] = v
.value_int
;
2228 params
[0] = v
.value_int_4
[0];
2229 params
[1] = v
.value_int_4
[1];
2230 params
[2] = v
.value_int_4
[2];
2231 params
[3] = v
.value_int_4
[3];
2234 params
[0] = INT64_TO_INT(v
.value_int64
);
2237 ; /* nothing - GL error was recorded */
2242 _mesa_GetInteger64i_v( GLenum pname
, GLuint index
, GLint64
*params
)
2245 enum value_type type
=
2246 find_value_indexed("glGetInteger64i_v", pname
, index
, &v
);
2250 params
[0] = v
.value_int
;
2253 params
[0] = v
.value_int_4
[0];
2254 params
[1] = v
.value_int_4
[1];
2255 params
[2] = v
.value_int_4
[2];
2256 params
[3] = v
.value_int_4
[3];
2259 params
[0] = v
.value_int64
;
2262 ; /* nothing - GL error was recorded */
2267 _mesa_GetFloati_v(GLenum pname
, GLuint index
, GLfloat
*params
)
2272 enum value_type type
=
2273 find_value_indexed("glGetFloati_v", pname
, index
, &v
);
2278 params
[3] = v
.value_float_4
[3];
2281 params
[2] = v
.value_float_4
[2];
2284 params
[1] = v
.value_float_4
[1];
2287 params
[0] = v
.value_float_4
[0];
2290 case TYPE_DOUBLEN_2
:
2291 params
[1] = (GLfloat
) v
.value_double_2
[1];
2293 params
[0] = (GLfloat
) v
.value_double_2
[0];
2297 params
[3] = (GLfloat
) v
.value_int_4
[3];
2299 params
[2] = (GLfloat
) v
.value_int_4
[2];
2302 params
[1] = (GLfloat
) v
.value_int_4
[1];
2305 params
[0] = (GLfloat
) v
.value_int_4
[0];
2309 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
2310 params
[i
] = INT_TO_FLOAT(v
.value_int_n
.ints
[i
]);
2314 params
[0] = (GLfloat
) v
.value_int64
;
2318 params
[0] = BOOLEAN_TO_FLOAT(v
.value_bool
);
2322 m
= *(GLmatrix
**) &v
;
2323 for (i
= 0; i
< 16; i
++)
2324 params
[i
] = m
->m
[i
];
2328 m
= *(GLmatrix
**) &v
;
2329 for (i
= 0; i
< 16; i
++)
2330 params
[i
] = m
->m
[transpose
[i
]];
2339 _mesa_GetDoublei_v(GLenum pname
, GLuint index
, GLdouble
*params
)
2344 enum value_type type
=
2345 find_value_indexed("glGetDoublei_v", pname
, index
, &v
);
2350 params
[3] = (GLdouble
) v
.value_float_4
[3];
2353 params
[2] = (GLdouble
) v
.value_float_4
[2];
2356 params
[1] = (GLdouble
) v
.value_float_4
[1];
2359 params
[0] = (GLdouble
) v
.value_float_4
[0];
2362 case TYPE_DOUBLEN_2
:
2363 params
[1] = v
.value_double_2
[1];
2365 params
[0] = v
.value_double_2
[0];
2369 params
[3] = (GLdouble
) v
.value_int_4
[3];
2371 params
[2] = (GLdouble
) v
.value_int_4
[2];
2374 params
[1] = (GLdouble
) v
.value_int_4
[1];
2377 params
[0] = (GLdouble
) v
.value_int_4
[0];
2381 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
2382 params
[i
] = (GLdouble
) INT_TO_FLOAT(v
.value_int_n
.ints
[i
]);
2386 params
[0] = (GLdouble
) v
.value_int64
;
2390 params
[0] = (GLdouble
) BOOLEAN_TO_FLOAT(v
.value_bool
);
2394 m
= *(GLmatrix
**) &v
;
2395 for (i
= 0; i
< 16; i
++)
2396 params
[i
] = (GLdouble
) m
->m
[i
];
2400 m
= *(GLmatrix
**) &v
;
2401 for (i
= 0; i
< 16; i
++)
2402 params
[i
] = (GLdouble
) m
->m
[transpose
[i
]];
2411 _mesa_GetFixedv(GLenum pname
, GLfixed
*params
)
2413 const struct value_desc
*d
;
2419 d
= find_value("glGetDoublev", pname
, &p
, &v
);
2424 params
[0] = INT_TO_FIXED(d
->offset
);
2429 params
[3] = FLOAT_TO_FIXED(((GLfloat
*) p
)[3]);
2432 params
[2] = FLOAT_TO_FIXED(((GLfloat
*) p
)[2]);
2435 params
[1] = FLOAT_TO_FIXED(((GLfloat
*) p
)[1]);
2438 params
[0] = FLOAT_TO_FIXED(((GLfloat
*) p
)[0]);
2441 case TYPE_DOUBLEN_2
:
2442 params
[1] = FLOAT_TO_FIXED(((GLdouble
*) p
)[1]);
2444 params
[0] = FLOAT_TO_FIXED(((GLdouble
*) p
)[0]);
2448 params
[3] = INT_TO_FIXED(((GLint
*) p
)[3]);
2450 params
[2] = INT_TO_FIXED(((GLint
*) p
)[2]);
2453 params
[1] = INT_TO_FIXED(((GLint
*) p
)[1]);
2456 params
[0] = INT_TO_FIXED(((GLint
*) p
)[0]);
2460 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
2461 params
[i
] = INT_TO_FIXED(v
.value_int_n
.ints
[i
]);
2465 params
[0] = ((GLint64
*) p
)[0];
2469 params
[0] = BOOLEAN_TO_FIXED(((GLboolean
*) p
)[0]);
2473 m
= *(GLmatrix
**) p
;
2474 for (i
= 0; i
< 16; i
++)
2475 params
[i
] = FLOAT_TO_FIXED(m
->m
[i
]);
2479 m
= *(GLmatrix
**) p
;
2480 for (i
= 0; i
< 16; i
++)
2481 params
[i
] = FLOAT_TO_FIXED(m
->m
[transpose
[i
]]);
2492 shift
= d
->type
- TYPE_BIT_0
;
2493 params
[0] = BOOLEAN_TO_FIXED((*(GLbitfield
*) p
>> shift
) & 1);