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>
31 #include "extensions.h"
36 #include "texcompress.h"
37 #include "framebuffer.h"
38 #include "samplerobj.h"
41 /* This is a table driven implemetation of the glGet*v() functions.
42 * The basic idea is that most getters just look up an int somewhere
43 * in struct gl_context and then convert it to a bool or float according to
44 * which of glGetIntegerv() glGetBooleanv() etc is being called.
45 * Instead of generating code to do this, we can just record the enum
46 * value and the offset into struct gl_context in an array of structs. Then
47 * in glGet*(), we lookup the struct for the enum in question, and use
48 * the offset to get the int we need.
50 * Sometimes we need to look up a float, a boolean, a bit in a
51 * bitfield, a matrix or other types instead, so we need to track the
52 * type of the value in struct gl_context. And sometimes the value isn't in
53 * struct gl_context but in the drawbuffer, the array object, current texture
54 * unit, or maybe it's a computed value. So we need to also track
55 * where or how to find the value. Finally, we sometimes need to
56 * check that one of a number of extensions are enabled, the GL
57 * version or flush or call _mesa_update_state(). This is done by
58 * attaching optional extra information to the value description
59 * struct, it's sort of like an array of opcodes that describe extra
62 * Putting all this together we end up with struct value_desc below,
63 * and with a couple of macros to help, the table of struct value_desc
64 * is about as concise as the specification in the old python script.
67 #define FLOAT_TO_BOOLEAN(X) ( (X) ? GL_TRUE : GL_FALSE )
68 #define FLOAT_TO_FIXED(F) ( ((F) * 65536.0f > INT_MAX) ? INT_MAX : \
69 ((F) * 65536.0f < INT_MIN) ? INT_MIN : \
70 (GLint) ((F) * 65536.0f) )
72 #define INT_TO_BOOLEAN(I) ( (I) ? GL_TRUE : GL_FALSE )
73 #define INT_TO_FIXED(I) ( ((I) > SHRT_MAX) ? INT_MAX : \
74 ((I) < SHRT_MIN) ? INT_MIN : \
75 (GLint) ((I) * 65536) )
77 #define INT64_TO_BOOLEAN(I) ( (I) ? GL_TRUE : GL_FALSE )
78 #define INT64_TO_INT(I) ( (GLint)((I > INT_MAX) ? INT_MAX : ((I < INT_MIN) ? INT_MIN : (I))) )
80 #define BOOLEAN_TO_INT(B) ( (GLint) (B) )
81 #define BOOLEAN_TO_INT64(B) ( (GLint64) (B) )
82 #define BOOLEAN_TO_FLOAT(B) ( (B) ? 1.0F : 0.0F )
83 #define BOOLEAN_TO_FIXED(B) ( (GLint) ((B) ? 1 : 0) << 16 )
85 #define ENUM_TO_INT64(E) ( (GLint64) (E) )
86 #define ENUM_TO_FIXED(E) (E)
121 enum value_location
{
140 EXTRA_NEW_FRAG_CLAMP
,
141 EXTRA_VALID_DRAW_BUFFER
,
142 EXTRA_VALID_TEXTURE_UNIT
,
143 EXTRA_VALID_CLIP_DISTANCE
,
147 EXTRA_EXT_ATOMICS_GS4
,
150 #define NO_EXTRA NULL
155 GLubyte location
; /**< enum value_location */
156 GLubyte type
; /**< enum value_type */
163 GLfloat value_float_4
[4];
164 GLmatrix
*value_matrix
;
166 GLint value_int_4
[4];
170 /* Sigh, see GL_COMPRESSED_TEXTURE_FORMATS_ARB handling */
174 GLboolean value_bool
;
177 #define BUFFER_FIELD(field, type) \
178 LOC_BUFFER, type, offsetof(struct gl_framebuffer, field)
179 #define CONTEXT_FIELD(field, type) \
180 LOC_CONTEXT, type, offsetof(struct gl_context, field)
181 #define ARRAY_FIELD(field, type) \
182 LOC_ARRAY, type, offsetof(struct gl_array_object, field)
183 #undef CONST /* already defined through windows.h */
184 #define CONST(value) \
185 LOC_CONTEXT, TYPE_CONST, value
187 #define BUFFER_INT(field) BUFFER_FIELD(field, TYPE_INT)
188 #define BUFFER_ENUM(field) BUFFER_FIELD(field, TYPE_ENUM)
189 #define BUFFER_BOOL(field) BUFFER_FIELD(field, TYPE_BOOLEAN)
191 #define CONTEXT_INT(field) CONTEXT_FIELD(field, TYPE_INT)
192 #define CONTEXT_INT2(field) CONTEXT_FIELD(field, TYPE_INT_2)
193 #define CONTEXT_INT64(field) CONTEXT_FIELD(field, TYPE_INT64)
194 #define CONTEXT_ENUM(field) CONTEXT_FIELD(field, TYPE_ENUM)
195 #define CONTEXT_ENUM2(field) CONTEXT_FIELD(field, TYPE_ENUM_2)
196 #define CONTEXT_BOOL(field) CONTEXT_FIELD(field, TYPE_BOOLEAN)
197 #define CONTEXT_BIT0(field) CONTEXT_FIELD(field, TYPE_BIT_0)
198 #define CONTEXT_BIT1(field) CONTEXT_FIELD(field, TYPE_BIT_1)
199 #define CONTEXT_BIT2(field) CONTEXT_FIELD(field, TYPE_BIT_2)
200 #define CONTEXT_BIT3(field) CONTEXT_FIELD(field, TYPE_BIT_3)
201 #define CONTEXT_BIT4(field) CONTEXT_FIELD(field, TYPE_BIT_4)
202 #define CONTEXT_BIT5(field) CONTEXT_FIELD(field, TYPE_BIT_5)
203 #define CONTEXT_BIT6(field) CONTEXT_FIELD(field, TYPE_BIT_6)
204 #define CONTEXT_BIT7(field) CONTEXT_FIELD(field, TYPE_BIT_7)
205 #define CONTEXT_FLOAT(field) CONTEXT_FIELD(field, TYPE_FLOAT)
206 #define CONTEXT_FLOAT2(field) CONTEXT_FIELD(field, TYPE_FLOAT_2)
207 #define CONTEXT_FLOAT3(field) CONTEXT_FIELD(field, TYPE_FLOAT_3)
208 #define CONTEXT_FLOAT4(field) CONTEXT_FIELD(field, TYPE_FLOAT_4)
209 #define CONTEXT_MATRIX(field) CONTEXT_FIELD(field, TYPE_MATRIX)
210 #define CONTEXT_MATRIX_T(field) CONTEXT_FIELD(field, TYPE_MATRIX_T)
212 #define ARRAY_INT(field) ARRAY_FIELD(field, TYPE_INT)
213 #define ARRAY_ENUM(field) ARRAY_FIELD(field, TYPE_ENUM)
214 #define ARRAY_BOOL(field) ARRAY_FIELD(field, TYPE_BOOLEAN)
217 offsetof(struct gl_extensions, f)
219 #define EXTRA_EXT(e) \
220 static const int extra_##e[] = { \
224 #define EXTRA_EXT2(e1, e2) \
225 static const int extra_##e1##_##e2[] = { \
226 EXT(e1), EXT(e2), EXTRA_END \
229 /* The 'extra' mechanism is a way to specify extra checks (such as
230 * extensions or specific gl versions) or actions (flush current, new
231 * buffers) that we need to do before looking up an enum. We need to
232 * declare them all up front so we can refer to them in the value_desc
235 * Each EXTRA_ will be executed. For EXTRA_* enums of extensions and API
236 * versions, listing multiple ones in an array means an error will be thrown
237 * only if none of them are available. If you need to check for "AND"
238 * behavior, you would need to make a custom EXTRA_ enum.
241 static const int extra_new_buffers
[] = {
246 static const int extra_new_frag_clamp
[] = {
247 EXTRA_NEW_FRAG_CLAMP
,
251 static const int extra_valid_draw_buffer
[] = {
252 EXTRA_VALID_DRAW_BUFFER
,
256 static const int extra_valid_texture_unit
[] = {
257 EXTRA_VALID_TEXTURE_UNIT
,
261 static const int extra_valid_clip_distance
[] = {
262 EXTRA_VALID_CLIP_DISTANCE
,
266 static const int extra_flush_current_valid_texture_unit
[] = {
268 EXTRA_VALID_TEXTURE_UNIT
,
272 static const int extra_flush_current
[] = {
277 static const int extra_EXT_texture_integer
[] = {
278 EXT(EXT_texture_integer
),
282 static const int extra_EXT_texture_integer_and_new_buffers
[] = {
283 EXT(EXT_texture_integer
),
288 static const int extra_GLSL_130_es3
[] = {
294 static const int extra_texture_buffer_object
[] = {
297 EXT(ARB_texture_buffer_object
),
301 static const int extra_ARB_transform_feedback2_api_es3
[] = {
302 EXT(ARB_transform_feedback2
),
307 static const int extra_ARB_uniform_buffer_object_and_geometry_shader
[] = {
312 static const int extra_ARB_ES2_compatibility_api_es2
[] = {
313 EXT(ARB_ES2_compatibility
),
318 static const int extra_ARB_ES3_compatibility_api_es3
[] = {
319 EXT(ARB_ES3_compatibility
),
324 static const int extra_EXT_framebuffer_sRGB_and_new_buffers
[] = {
325 EXT(EXT_framebuffer_sRGB
),
330 static const int extra_MESA_texture_array_es3
[] = {
331 EXT(MESA_texture_array
),
336 static const int extra_ARB_shader_atomic_counters_and_geometry_shader
[] = {
337 EXTRA_EXT_ATOMICS_GS4
,
341 EXTRA_EXT(ARB_texture_cube_map
);
342 EXTRA_EXT(MESA_texture_array
);
343 EXTRA_EXT(NV_fog_distance
);
344 EXTRA_EXT(EXT_texture_filter_anisotropic
);
345 EXTRA_EXT(NV_point_sprite
);
346 EXTRA_EXT(NV_texture_rectangle
);
347 EXTRA_EXT(EXT_stencil_two_side
);
348 EXTRA_EXT(EXT_depth_bounds_test
);
349 EXTRA_EXT(ARB_depth_clamp
);
350 EXTRA_EXT(ATI_fragment_shader
);
351 EXTRA_EXT(EXT_framebuffer_blit
);
352 EXTRA_EXT(EXT_provoking_vertex
);
353 EXTRA_EXT(ARB_fragment_shader
);
354 EXTRA_EXT(ARB_fragment_program
);
355 EXTRA_EXT2(ARB_framebuffer_object
, EXT_framebuffer_multisample
);
356 EXTRA_EXT(ARB_seamless_cube_map
);
358 EXTRA_EXT(ARB_vertex_shader
);
359 EXTRA_EXT(EXT_transform_feedback
);
360 EXTRA_EXT(ARB_transform_feedback3
);
361 EXTRA_EXT(EXT_pixel_buffer_object
);
362 EXTRA_EXT(ARB_vertex_program
);
363 EXTRA_EXT2(NV_point_sprite
, ARB_point_sprite
);
364 EXTRA_EXT2(ARB_vertex_program
, ARB_fragment_program
);
365 EXTRA_EXT(ARB_geometry_shader4
);
366 EXTRA_EXT(ARB_color_buffer_float
);
367 EXTRA_EXT(EXT_framebuffer_sRGB
);
368 EXTRA_EXT(OES_EGL_image_external
);
369 EXTRA_EXT(ARB_blend_func_extended
);
370 EXTRA_EXT(ARB_uniform_buffer_object
);
371 EXTRA_EXT(ARB_timer_query
);
372 EXTRA_EXT(ARB_map_buffer_alignment
);
373 EXTRA_EXT(ARB_texture_cube_map_array
);
374 EXTRA_EXT(ARB_texture_buffer_range
);
375 EXTRA_EXT(ARB_texture_multisample
);
376 EXTRA_EXT(ARB_texture_gather
);
377 EXTRA_EXT(ARB_shader_atomic_counters
);
378 EXTRA_EXT(ARB_draw_indirect
);
381 extra_ARB_color_buffer_float_or_glcore
[] = {
382 EXT(ARB_color_buffer_float
),
388 extra_NV_primitive_restart
[] = {
389 EXT(NV_primitive_restart
),
393 static const int extra_version_30
[] = { EXTRA_VERSION_30
, EXTRA_END
};
394 static const int extra_version_31
[] = { EXTRA_VERSION_31
, EXTRA_END
};
395 static const int extra_version_32
[] = { EXTRA_VERSION_32
, EXTRA_END
};
396 static const int extra_version_40
[] = { EXTRA_VERSION_40
, EXTRA_END
};
398 static const int extra_gl30_es3
[] = {
404 static const int extra_gl32_es3
[] = {
410 static const int extra_gl32_ARB_geometry_shader4
[] = {
412 EXT(ARB_geometry_shader4
),
416 static const int extra_gl40_ARB_sample_shading
[] = {
418 EXT(ARB_sample_shading
),
423 extra_ARB_vertex_program_api_es2
[] = {
424 EXT(ARB_vertex_program
),
429 /* The ReadBuffer get token is valid under either full GL or under
430 * GLES2 if the NV_read_buffer extension is available. */
432 extra_NV_read_buffer_api_gl
[] = {
438 static const int extra_core_ARB_color_buffer_float_and_new_buffers
[] = {
440 EXT(ARB_color_buffer_float
),
445 /* This is the big table describing all the enums we accept in
446 * glGet*v(). The table is partitioned into six parts: enums
447 * understood by all GL APIs (OpenGL, GLES and GLES2), enums shared
448 * between OpenGL and GLES, enums exclusive to GLES, etc for the
449 * remaining combinations. To look up the enums valid in a given API
450 * we will use a hash table specific to that API. These tables are in
451 * turn generated at build time and included through get_hash.h.
454 #include "get_hash.h"
456 /* All we need now is a way to look up the value struct from the enum.
457 * The code generated by gcc for the old generated big switch
458 * statement is a big, balanced, open coded if/else tree, essentially
459 * an unrolled binary search. It would be natural to sort the new
460 * enum table and use bsearch(), but we will use a read-only hash
461 * table instead. bsearch() has a nice guaranteed worst case
462 * performance, but we're also guaranteed to hit that worst case
463 * (log2(n) iterations) for about half the enums. Instead, using an
464 * open addressing hash table, we can find the enum on the first try
465 * for 80% of the enums, 1 collision for 10% and never more than 5
466 * collisions for any enum (typical numbers). And the code is very
467 * simple, even though it feels a little magic. */
471 print_table_stats(int api
)
473 int i
, j
, collisions
[11], count
, hash
, mask
;
474 const struct value_desc
*d
;
475 const char *api_names
[] = {
476 [API_OPENGL_COMPAT
] = "GL",
477 [API_OPENGL_CORE
] = "GL_CORE",
478 [API_OPENGLES
] = "GLES",
479 [API_OPENGLES2
] = "GLES2",
481 const char *api_name
;
483 api_name
= api
< Elements(api_names
) ? api_names
[api
] : "N/A";
485 mask
= Elements(table(api
)) - 1;
486 memset(collisions
, 0, sizeof collisions
);
488 for (i
= 0; i
< Elements(table(api
)); i
++) {
492 d
= &values
[table(api
)[i
]];
493 hash
= (d
->pname
* prime_factor
);
496 if (values
[table(api
)[hash
& mask
]].pname
== d
->pname
)
508 printf("number of enums for %s: %d (total %ld)\n",
509 api_name
, count
, Elements(values
));
510 for (i
= 0; i
< Elements(collisions
) - 1; i
++)
511 if (collisions
[i
] > 0)
512 printf(" %d enums with %d %scollisions\n",
513 collisions
[i
], i
, i
== 10 ? "or more " : "");
518 * Initialize the enum hash for a given API
520 * This is called from one_time_init() to insert the enum values that
521 * are valid for the API in question into the enum hash table.
523 * \param the current context, for determining the API in question
525 void _mesa_init_get_hash(struct gl_context
*ctx
)
528 print_table_stats(ctx
->API
);
535 * Handle irregular enums
537 * Some values don't conform to the "well-known type at context
538 * pointer + offset" pattern, so we have this function to catch all
539 * the corner cases. Typically, it's a computed value or a one-off
540 * pointer to a custom struct or something.
542 * In this case we can't return a pointer to the value, so we'll have
543 * to use the temporary variable 'v' declared back in the calling
544 * glGet*v() function to store the result.
546 * \param ctx the current context
547 * \param d the struct value_desc that describes the enum
548 * \param v pointer to the tmp declared in the calling glGet*v() function
551 find_custom_value(struct gl_context
*ctx
, const struct value_desc
*d
, union value
*v
)
553 struct gl_buffer_object
**buffer_obj
;
554 struct gl_vertex_attrib_array
*array
;
558 case GL_MAJOR_VERSION
:
559 v
->value_int
= ctx
->Version
/ 10;
561 case GL_MINOR_VERSION
:
562 v
->value_int
= ctx
->Version
% 10;
568 case GL_TEXTURE_1D_ARRAY_EXT
:
569 case GL_TEXTURE_2D_ARRAY_EXT
:
570 case GL_TEXTURE_CUBE_MAP_ARB
:
571 case GL_TEXTURE_RECTANGLE_NV
:
572 case GL_TEXTURE_EXTERNAL_OES
:
573 v
->value_bool
= _mesa_IsEnabled(d
->pname
);
576 case GL_LINE_STIPPLE_PATTERN
:
577 /* This is the only GLushort, special case it here by promoting
578 * to an int rather than introducing a new type. */
579 v
->value_int
= ctx
->Line
.StipplePattern
;
582 case GL_CURRENT_RASTER_TEXTURE_COORDS
:
583 unit
= ctx
->Texture
.CurrentUnit
;
584 v
->value_float_4
[0] = ctx
->Current
.RasterTexCoords
[unit
][0];
585 v
->value_float_4
[1] = ctx
->Current
.RasterTexCoords
[unit
][1];
586 v
->value_float_4
[2] = ctx
->Current
.RasterTexCoords
[unit
][2];
587 v
->value_float_4
[3] = ctx
->Current
.RasterTexCoords
[unit
][3];
590 case GL_CURRENT_TEXTURE_COORDS
:
591 unit
= ctx
->Texture
.CurrentUnit
;
592 v
->value_float_4
[0] = ctx
->Current
.Attrib
[VERT_ATTRIB_TEX0
+ unit
][0];
593 v
->value_float_4
[1] = ctx
->Current
.Attrib
[VERT_ATTRIB_TEX0
+ unit
][1];
594 v
->value_float_4
[2] = ctx
->Current
.Attrib
[VERT_ATTRIB_TEX0
+ unit
][2];
595 v
->value_float_4
[3] = ctx
->Current
.Attrib
[VERT_ATTRIB_TEX0
+ unit
][3];
598 case GL_COLOR_WRITEMASK
:
599 v
->value_int_4
[0] = ctx
->Color
.ColorMask
[0][RCOMP
] ? 1 : 0;
600 v
->value_int_4
[1] = ctx
->Color
.ColorMask
[0][GCOMP
] ? 1 : 0;
601 v
->value_int_4
[2] = ctx
->Color
.ColorMask
[0][BCOMP
] ? 1 : 0;
602 v
->value_int_4
[3] = ctx
->Color
.ColorMask
[0][ACOMP
] ? 1 : 0;
606 v
->value_bool
= ctx
->Current
.Attrib
[VERT_ATTRIB_EDGEFLAG
][0] == 1.0;
610 v
->value_enum
= ctx
->ReadBuffer
->ColorReadBuffer
;
613 case GL_MAP2_GRID_DOMAIN
:
614 v
->value_float_4
[0] = ctx
->Eval
.MapGrid2u1
;
615 v
->value_float_4
[1] = ctx
->Eval
.MapGrid2u2
;
616 v
->value_float_4
[2] = ctx
->Eval
.MapGrid2v1
;
617 v
->value_float_4
[3] = ctx
->Eval
.MapGrid2v2
;
620 case GL_TEXTURE_STACK_DEPTH
:
621 unit
= ctx
->Texture
.CurrentUnit
;
622 v
->value_int
= ctx
->TextureMatrixStack
[unit
].Depth
+ 1;
624 case GL_TEXTURE_MATRIX
:
625 unit
= ctx
->Texture
.CurrentUnit
;
626 v
->value_matrix
= ctx
->TextureMatrixStack
[unit
].Top
;
629 case GL_TEXTURE_COORD_ARRAY
:
630 case GL_TEXTURE_COORD_ARRAY_SIZE
:
631 case GL_TEXTURE_COORD_ARRAY_TYPE
:
632 case GL_TEXTURE_COORD_ARRAY_STRIDE
:
633 array
= &ctx
->Array
.ArrayObj
->VertexAttrib
[VERT_ATTRIB_TEX(ctx
->Array
.ActiveTexture
)];
634 v
->value_int
= *(GLuint
*) ((char *) array
+ d
->offset
);
637 case GL_ACTIVE_TEXTURE_ARB
:
638 v
->value_int
= GL_TEXTURE0_ARB
+ ctx
->Texture
.CurrentUnit
;
640 case GL_CLIENT_ACTIVE_TEXTURE_ARB
:
641 v
->value_int
= GL_TEXTURE0_ARB
+ ctx
->Array
.ActiveTexture
;
644 case GL_MODELVIEW_STACK_DEPTH
:
645 case GL_PROJECTION_STACK_DEPTH
:
646 v
->value_int
= *(GLint
*) ((char *) ctx
+ d
->offset
) + 1;
649 case GL_MAX_TEXTURE_SIZE
:
650 case GL_MAX_3D_TEXTURE_SIZE
:
651 case GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB
:
652 p
= (GLuint
*) ((char *) ctx
+ d
->offset
);
653 v
->value_int
= 1 << (*p
- 1);
657 v
->value_int_4
[0] = ctx
->Scissor
.X
;
658 v
->value_int_4
[1] = ctx
->Scissor
.Y
;
659 v
->value_int_4
[2] = ctx
->Scissor
.Width
;
660 v
->value_int_4
[3] = ctx
->Scissor
.Height
;
665 ctx
->ListState
.CurrentList
? ctx
->ListState
.CurrentList
->Name
: 0;
668 if (!ctx
->CompileFlag
)
670 else if (ctx
->ExecuteFlag
)
671 v
->value_enum
= GL_COMPILE_AND_EXECUTE
;
673 v
->value_enum
= GL_COMPILE
;
677 v
->value_int_4
[0] = ctx
->Viewport
.X
;
678 v
->value_int_4
[1] = ctx
->Viewport
.Y
;
679 v
->value_int_4
[2] = ctx
->Viewport
.Width
;
680 v
->value_int_4
[3] = ctx
->Viewport
.Height
;
683 case GL_ACTIVE_STENCIL_FACE_EXT
:
684 v
->value_enum
= ctx
->Stencil
.ActiveFace
? GL_BACK
: GL_FRONT
;
687 case GL_STENCIL_FAIL
:
688 v
->value_enum
= ctx
->Stencil
.FailFunc
[ctx
->Stencil
.ActiveFace
];
690 case GL_STENCIL_FUNC
:
691 v
->value_enum
= ctx
->Stencil
.Function
[ctx
->Stencil
.ActiveFace
];
693 case GL_STENCIL_PASS_DEPTH_FAIL
:
694 v
->value_enum
= ctx
->Stencil
.ZFailFunc
[ctx
->Stencil
.ActiveFace
];
696 case GL_STENCIL_PASS_DEPTH_PASS
:
697 v
->value_enum
= ctx
->Stencil
.ZPassFunc
[ctx
->Stencil
.ActiveFace
];
700 v
->value_int
= _mesa_get_stencil_ref(ctx
, ctx
->Stencil
.ActiveFace
);
702 case GL_STENCIL_BACK_REF
:
703 v
->value_int
= _mesa_get_stencil_ref(ctx
, 1);
705 case GL_STENCIL_VALUE_MASK
:
706 v
->value_int
= ctx
->Stencil
.ValueMask
[ctx
->Stencil
.ActiveFace
];
708 case GL_STENCIL_WRITEMASK
:
709 v
->value_int
= ctx
->Stencil
.WriteMask
[ctx
->Stencil
.ActiveFace
];
712 case GL_NUM_EXTENSIONS
:
713 v
->value_int
= _mesa_get_extension_count(ctx
);
716 case GL_IMPLEMENTATION_COLOR_READ_TYPE_OES
:
717 v
->value_int
= _mesa_get_color_read_type(ctx
);
719 case GL_IMPLEMENTATION_COLOR_READ_FORMAT_OES
:
720 v
->value_int
= _mesa_get_color_read_format(ctx
);
723 case GL_CURRENT_MATRIX_STACK_DEPTH_ARB
:
724 v
->value_int
= ctx
->CurrentStack
->Depth
+ 1;
726 case GL_CURRENT_MATRIX_ARB
:
727 case GL_TRANSPOSE_CURRENT_MATRIX_ARB
:
728 v
->value_matrix
= ctx
->CurrentStack
->Top
;
731 case GL_NUM_COMPRESSED_TEXTURE_FORMATS_ARB
:
732 v
->value_int
= _mesa_get_compressed_formats(ctx
, NULL
);
734 case GL_COMPRESSED_TEXTURE_FORMATS_ARB
:
736 _mesa_get_compressed_formats(ctx
, v
->value_int_n
.ints
);
737 ASSERT(v
->value_int_n
.n
<= (int) ARRAY_SIZE(v
->value_int_n
.ints
));
740 case GL_MAX_VARYING_FLOATS_ARB
:
741 v
->value_int
= ctx
->Const
.MaxVarying
* 4;
744 /* Various object names */
746 case GL_TEXTURE_BINDING_1D
:
747 case GL_TEXTURE_BINDING_2D
:
748 case GL_TEXTURE_BINDING_3D
:
749 case GL_TEXTURE_BINDING_1D_ARRAY_EXT
:
750 case GL_TEXTURE_BINDING_2D_ARRAY_EXT
:
751 case GL_TEXTURE_BINDING_CUBE_MAP_ARB
:
752 case GL_TEXTURE_BINDING_RECTANGLE_NV
:
753 case GL_TEXTURE_BINDING_EXTERNAL_OES
:
754 case GL_TEXTURE_BINDING_CUBE_MAP_ARRAY
:
755 case GL_TEXTURE_BINDING_2D_MULTISAMPLE
:
756 case GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY
:
757 unit
= ctx
->Texture
.CurrentUnit
;
759 ctx
->Texture
.Unit
[unit
].CurrentTex
[d
->offset
]->Name
;
762 /* GL_ARB_vertex_buffer_object */
763 case GL_VERTEX_ARRAY_BUFFER_BINDING_ARB
:
764 case GL_NORMAL_ARRAY_BUFFER_BINDING_ARB
:
765 case GL_COLOR_ARRAY_BUFFER_BINDING_ARB
:
766 case GL_INDEX_ARRAY_BUFFER_BINDING_ARB
:
767 case GL_EDGE_FLAG_ARRAY_BUFFER_BINDING_ARB
:
768 case GL_SECONDARY_COLOR_ARRAY_BUFFER_BINDING_ARB
:
769 case GL_FOG_COORDINATE_ARRAY_BUFFER_BINDING_ARB
:
770 buffer_obj
= (struct gl_buffer_object
**)
771 ((char *) ctx
->Array
.ArrayObj
+ d
->offset
);
772 v
->value_int
= (*buffer_obj
)->Name
;
774 case GL_ARRAY_BUFFER_BINDING_ARB
:
775 v
->value_int
= ctx
->Array
.ArrayBufferObj
->Name
;
777 case GL_TEXTURE_COORD_ARRAY_BUFFER_BINDING_ARB
:
779 ctx
->Array
.ArrayObj
->VertexBinding
[VERT_ATTRIB_TEX(ctx
->Array
.ActiveTexture
)].BufferObj
->Name
;
781 case GL_ELEMENT_ARRAY_BUFFER_BINDING_ARB
:
782 v
->value_int
= ctx
->Array
.ArrayObj
->ElementArrayBufferObj
->Name
;
785 /* ARB_copy_buffer */
786 case GL_COPY_READ_BUFFER
:
787 v
->value_int
= ctx
->CopyReadBuffer
->Name
;
789 case GL_COPY_WRITE_BUFFER
:
790 v
->value_int
= ctx
->CopyWriteBuffer
->Name
;
793 case GL_PIXEL_PACK_BUFFER_BINDING_EXT
:
794 v
->value_int
= ctx
->Pack
.BufferObj
->Name
;
796 case GL_PIXEL_UNPACK_BUFFER_BINDING_EXT
:
797 v
->value_int
= ctx
->Unpack
.BufferObj
->Name
;
799 case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING
:
800 v
->value_int
= ctx
->TransformFeedback
.CurrentBuffer
->Name
;
802 case GL_TRANSFORM_FEEDBACK_BUFFER_PAUSED
:
803 v
->value_int
= ctx
->TransformFeedback
.CurrentObject
->Paused
;
805 case GL_TRANSFORM_FEEDBACK_BUFFER_ACTIVE
:
806 v
->value_int
= ctx
->TransformFeedback
.CurrentObject
->Active
;
808 case GL_TRANSFORM_FEEDBACK_BINDING
:
809 v
->value_int
= ctx
->TransformFeedback
.CurrentObject
->Name
;
811 case GL_CURRENT_PROGRAM
:
813 ctx
->Shader
.ActiveProgram
? ctx
->Shader
.ActiveProgram
->Name
: 0;
815 case GL_READ_FRAMEBUFFER_BINDING_EXT
:
816 v
->value_int
= ctx
->ReadBuffer
->Name
;
818 case GL_RENDERBUFFER_BINDING_EXT
:
820 ctx
->CurrentRenderbuffer
? ctx
->CurrentRenderbuffer
->Name
: 0;
822 case GL_POINT_SIZE_ARRAY_BUFFER_BINDING_OES
:
823 v
->value_int
= ctx
->Array
.ArrayObj
->VertexBinding
[VERT_ATTRIB_POINT_SIZE
].BufferObj
->Name
;
827 if (_mesa_get_clamp_fragment_color(ctx
))
828 COPY_4FV(v
->value_float_4
, ctx
->Fog
.Color
);
830 COPY_4FV(v
->value_float_4
, ctx
->Fog
.ColorUnclamped
);
832 case GL_COLOR_CLEAR_VALUE
:
833 if (_mesa_get_clamp_fragment_color(ctx
)) {
834 v
->value_float_4
[0] = CLAMP(ctx
->Color
.ClearColor
.f
[0], 0.0F
, 1.0F
);
835 v
->value_float_4
[1] = CLAMP(ctx
->Color
.ClearColor
.f
[1], 0.0F
, 1.0F
);
836 v
->value_float_4
[2] = CLAMP(ctx
->Color
.ClearColor
.f
[2], 0.0F
, 1.0F
);
837 v
->value_float_4
[3] = CLAMP(ctx
->Color
.ClearColor
.f
[3], 0.0F
, 1.0F
);
839 COPY_4FV(v
->value_float_4
, ctx
->Color
.ClearColor
.f
);
841 case GL_BLEND_COLOR_EXT
:
842 if (_mesa_get_clamp_fragment_color(ctx
))
843 COPY_4FV(v
->value_float_4
, ctx
->Color
.BlendColor
);
845 COPY_4FV(v
->value_float_4
, ctx
->Color
.BlendColorUnclamped
);
847 case GL_ALPHA_TEST_REF
:
848 if (_mesa_get_clamp_fragment_color(ctx
))
849 v
->value_float
= ctx
->Color
.AlphaRef
;
851 v
->value_float
= ctx
->Color
.AlphaRefUnclamped
;
853 case GL_MAX_VERTEX_UNIFORM_VECTORS
:
854 v
->value_int
= ctx
->Const
.VertexProgram
.MaxUniformComponents
/ 4;
857 case GL_MAX_FRAGMENT_UNIFORM_VECTORS
:
858 v
->value_int
= ctx
->Const
.FragmentProgram
.MaxUniformComponents
/ 4;
861 /* GL_ARB_texture_buffer_object */
862 case GL_TEXTURE_BUFFER_ARB
:
863 v
->value_int
= ctx
->Texture
.BufferObject
->Name
;
865 case GL_TEXTURE_BINDING_BUFFER_ARB
:
866 unit
= ctx
->Texture
.CurrentUnit
;
868 ctx
->Texture
.Unit
[unit
].CurrentTex
[TEXTURE_BUFFER_INDEX
]->Name
;
870 case GL_TEXTURE_BUFFER_DATA_STORE_BINDING_ARB
:
872 struct gl_buffer_object
*buf
=
873 ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
]
874 .CurrentTex
[TEXTURE_BUFFER_INDEX
]->BufferObject
;
875 v
->value_int
= buf
? buf
->Name
: 0;
878 case GL_TEXTURE_BUFFER_FORMAT_ARB
:
879 v
->value_int
= ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
]
880 .CurrentTex
[TEXTURE_BUFFER_INDEX
]->BufferObjectFormat
;
883 /* GL_ARB_sampler_objects */
884 case GL_SAMPLER_BINDING
:
886 struct gl_sampler_object
*samp
=
887 ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
].Sampler
;
890 * The sampler object may have been deleted on another context,
891 * so we try to lookup the sampler object before returning its Name.
893 if (samp
&& _mesa_lookup_samplerobj(ctx
, samp
->Name
)) {
894 v
->value_int
= samp
->Name
;
900 /* GL_ARB_uniform_buffer_object */
901 case GL_UNIFORM_BUFFER_BINDING
:
902 v
->value_int
= ctx
->UniformBuffer
->Name
;
904 /* GL_ARB_timer_query */
906 if (ctx
->Driver
.GetTimestamp
) {
907 v
->value_int64
= ctx
->Driver
.GetTimestamp(ctx
);
910 _mesa_problem(ctx
, "driver doesn't implement GetTimestamp");
913 /* GL_ARB_shader_atomic_counters */
914 case GL_ATOMIC_COUNTER_BUFFER_BINDING
:
915 v
->value_int
= ctx
->AtomicBuffer
->Name
;
917 /* GL_ARB_draw_indirect */
918 case GL_DRAW_INDIRECT_BUFFER_BINDING
:
919 v
->value_int
= ctx
->DrawIndirectBuffer
->Name
;
925 * Check extra constraints on a struct value_desc descriptor
927 * If a struct value_desc has a non-NULL extra pointer, it means that
928 * there are a number of extra constraints to check or actions to
929 * perform. The extras is just an integer array where each integer
930 * encode different constraints or actions.
932 * \param ctx current context
933 * \param func name of calling glGet*v() function for error reporting
934 * \param d the struct value_desc that has the extra constraints
936 * \return GL_FALSE if all of the constraints were not satisfied,
940 check_extra(struct gl_context
*ctx
, const char *func
, const struct value_desc
*d
)
942 const GLuint version
= ctx
->Version
;
943 GLboolean api_check
= GL_FALSE
;
944 GLboolean api_found
= GL_FALSE
;
947 for (e
= d
->extra
; *e
!= EXTRA_END
; e
++) {
949 case EXTRA_VERSION_30
:
954 case EXTRA_VERSION_31
:
959 case EXTRA_VERSION_32
:
964 case EXTRA_NEW_FRAG_CLAMP
:
965 if (ctx
->NewState
& (_NEW_BUFFERS
| _NEW_FRAG_CLAMP
))
966 _mesa_update_state(ctx
);
970 if (ctx
->API
== API_OPENGLES2
)
975 if (_mesa_is_gles3(ctx
))
980 if (_mesa_is_desktop_gl(ctx
))
983 case EXTRA_API_GL_CORE
:
985 if (ctx
->API
== API_OPENGL_CORE
)
988 case EXTRA_NEW_BUFFERS
:
989 if (ctx
->NewState
& _NEW_BUFFERS
)
990 _mesa_update_state(ctx
);
992 case EXTRA_FLUSH_CURRENT
:
993 FLUSH_CURRENT(ctx
, 0);
995 case EXTRA_VALID_DRAW_BUFFER
:
996 if (d
->pname
- GL_DRAW_BUFFER0_ARB
>= ctx
->Const
.MaxDrawBuffers
) {
997 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(draw buffer %u)",
998 func
, d
->pname
- GL_DRAW_BUFFER0_ARB
);
1002 case EXTRA_VALID_TEXTURE_UNIT
:
1003 if (ctx
->Texture
.CurrentUnit
>= ctx
->Const
.MaxTextureCoordUnits
) {
1004 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(texture %u)",
1005 func
, ctx
->Texture
.CurrentUnit
);
1009 case EXTRA_VALID_CLIP_DISTANCE
:
1010 if (d
->pname
- GL_CLIP_DISTANCE0
>= ctx
->Const
.MaxClipPlanes
) {
1011 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(clip distance %u)",
1012 func
, d
->pname
- GL_CLIP_DISTANCE0
);
1016 case EXTRA_GLSL_130
:
1017 api_check
= GL_TRUE
;
1018 if (ctx
->Const
.GLSLVersion
>= 130)
1019 api_found
= GL_TRUE
;
1021 case EXTRA_EXT_UBO_GS4
:
1022 api_check
= GL_TRUE
;
1023 api_found
= (ctx
->Extensions
.ARB_uniform_buffer_object
&&
1024 _mesa_has_geometry_shaders(ctx
));
1026 case EXTRA_EXT_ATOMICS_GS4
:
1027 api_check
= GL_TRUE
;
1028 api_found
= (ctx
->Extensions
.ARB_shader_atomic_counters
&&
1029 _mesa_has_geometry_shaders(ctx
));
1033 default: /* *e is a offset into the extension struct */
1034 api_check
= GL_TRUE
;
1035 if (*(GLboolean
*) ((char *) &ctx
->Extensions
+ *e
))
1036 api_found
= GL_TRUE
;
1041 if (api_check
&& !api_found
) {
1042 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=%s)", func
,
1043 _mesa_lookup_enum_by_nr(d
->pname
));
1050 static const struct value_desc error_value
=
1051 { 0, 0, TYPE_INVALID
, NO_OFFSET
, NO_EXTRA
};
1054 * Find the struct value_desc corresponding to the enum 'pname'.
1056 * We hash the enum value to get an index into the 'table' array,
1057 * which holds the index in the 'values' array of struct value_desc.
1058 * Once we've found the entry, we do the extra checks, if any, then
1059 * look up the value and return a pointer to it.
1061 * If the value has to be computed (for example, it's the result of a
1062 * function call or we need to add 1 to it), we use the tmp 'v' to
1065 * \param func name of glGet*v() func for error reporting
1066 * \param pname the enum value we're looking up
1067 * \param p is were we return the pointer to the value
1068 * \param v a tmp union value variable in the calling glGet*v() function
1070 * \return the struct value_desc corresponding to the enum or a struct
1071 * value_desc of TYPE_INVALID if not found. This lets the calling
1072 * glGet*v() function jump right into a switch statement and
1073 * handle errors there instead of having to check for NULL.
1075 static const struct value_desc
*
1076 find_value(const char *func
, GLenum pname
, void **p
, union value
*v
)
1078 GET_CURRENT_CONTEXT(ctx
);
1079 struct gl_texture_unit
*unit
;
1081 const struct value_desc
*d
;
1085 /* We index into the table_set[] list of per-API hash tables using the API's
1086 * value in the gl_api enum. Since GLES 3 doesn't have an API_OPENGL* enum
1087 * value since it's compatible with GLES2 its entry in table_set[] is at the
1090 STATIC_ASSERT(Elements(table_set
) == API_OPENGL_LAST
+ 2);
1091 if (_mesa_is_gles3(ctx
)) {
1092 api
= API_OPENGL_LAST
+ 1;
1094 mask
= Elements(table(api
)) - 1;
1095 hash
= (pname
* prime_factor
);
1097 int idx
= table(api
)[hash
& mask
];
1099 /* If the enum isn't valid, the hash walk ends with index 0,
1100 * pointing to the first entry of values[] which doesn't hold
1101 * any valid enum. */
1102 if (unlikely(idx
== 0)) {
1103 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=%s)", func
,
1104 _mesa_lookup_enum_by_nr(pname
));
1105 return &error_value
;
1109 if (likely(d
->pname
== pname
))
1115 if (unlikely(d
->extra
&& !check_extra(ctx
, func
, d
)))
1116 return &error_value
;
1118 switch (d
->location
) {
1120 *p
= ((char *) ctx
->DrawBuffer
+ d
->offset
);
1123 *p
= ((char *) ctx
+ d
->offset
);
1126 *p
= ((char *) ctx
->Array
.ArrayObj
+ d
->offset
);
1129 unit
= &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1130 *p
= ((char *) unit
+ d
->offset
);
1133 find_custom_value(ctx
, d
, v
);
1141 /* silence warning */
1142 return &error_value
;
1145 static const int transpose
[] = {
1153 _mesa_GetBooleanv(GLenum pname
, GLboolean
*params
)
1155 const struct value_desc
*d
;
1161 d
= find_value("glGetBooleanv", pname
, &p
, &v
);
1166 params
[0] = INT_TO_BOOLEAN(d
->offset
);
1171 params
[3] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[3]);
1174 params
[2] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[2]);
1177 params
[1] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[1]);
1180 params
[0] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[0]);
1184 params
[0] = FLOAT_TO_BOOLEAN(((GLdouble
*) p
)[0]);
1188 params
[3] = INT_TO_BOOLEAN(((GLint
*) p
)[3]);
1190 params
[2] = INT_TO_BOOLEAN(((GLint
*) p
)[2]);
1193 params
[1] = INT_TO_BOOLEAN(((GLint
*) p
)[1]);
1196 params
[0] = INT_TO_BOOLEAN(((GLint
*) p
)[0]);
1200 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1201 params
[i
] = INT_TO_BOOLEAN(v
.value_int_n
.ints
[i
]);
1205 params
[0] = INT64_TO_BOOLEAN(((GLint64
*) p
)[0]);
1209 params
[0] = ((GLboolean
*) p
)[0];
1213 m
= *(GLmatrix
**) p
;
1214 for (i
= 0; i
< 16; i
++)
1215 params
[i
] = FLOAT_TO_BOOLEAN(m
->m
[i
]);
1219 m
= *(GLmatrix
**) p
;
1220 for (i
= 0; i
< 16; i
++)
1221 params
[i
] = FLOAT_TO_BOOLEAN(m
->m
[transpose
[i
]]);
1232 shift
= d
->type
- TYPE_BIT_0
;
1233 params
[0] = (*(GLbitfield
*) p
>> shift
) & 1;
1239 _mesa_GetFloatv(GLenum pname
, GLfloat
*params
)
1241 const struct value_desc
*d
;
1247 d
= find_value("glGetFloatv", pname
, &p
, &v
);
1252 params
[0] = (GLfloat
) d
->offset
;
1257 params
[3] = ((GLfloat
*) p
)[3];
1260 params
[2] = ((GLfloat
*) p
)[2];
1263 params
[1] = ((GLfloat
*) p
)[1];
1266 params
[0] = ((GLfloat
*) p
)[0];
1270 params
[0] = (GLfloat
) (((GLdouble
*) p
)[0]);
1274 params
[3] = (GLfloat
) (((GLint
*) p
)[3]);
1276 params
[2] = (GLfloat
) (((GLint
*) p
)[2]);
1279 params
[1] = (GLfloat
) (((GLint
*) p
)[1]);
1282 params
[0] = (GLfloat
) (((GLint
*) p
)[0]);
1286 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1287 params
[i
] = INT_TO_FLOAT(v
.value_int_n
.ints
[i
]);
1291 params
[0] = (GLfloat
) (((GLint64
*) p
)[0]);
1295 params
[0] = BOOLEAN_TO_FLOAT(*(GLboolean
*) p
);
1299 m
= *(GLmatrix
**) p
;
1300 for (i
= 0; i
< 16; i
++)
1301 params
[i
] = m
->m
[i
];
1305 m
= *(GLmatrix
**) p
;
1306 for (i
= 0; i
< 16; i
++)
1307 params
[i
] = m
->m
[transpose
[i
]];
1318 shift
= d
->type
- TYPE_BIT_0
;
1319 params
[0] = BOOLEAN_TO_FLOAT((*(GLbitfield
*) p
>> shift
) & 1);
1325 _mesa_GetIntegerv(GLenum pname
, GLint
*params
)
1327 const struct value_desc
*d
;
1333 d
= find_value("glGetIntegerv", pname
, &p
, &v
);
1338 params
[0] = d
->offset
;
1342 params
[3] = IROUND(((GLfloat
*) p
)[3]);
1344 params
[2] = IROUND(((GLfloat
*) p
)[2]);
1346 params
[1] = IROUND(((GLfloat
*) p
)[1]);
1348 params
[0] = IROUND(((GLfloat
*) p
)[0]);
1352 params
[3] = FLOAT_TO_INT(((GLfloat
*) p
)[3]);
1354 params
[2] = FLOAT_TO_INT(((GLfloat
*) p
)[2]);
1356 params
[1] = FLOAT_TO_INT(((GLfloat
*) p
)[1]);
1358 params
[0] = FLOAT_TO_INT(((GLfloat
*) p
)[0]);
1362 params
[0] = FLOAT_TO_INT(((GLdouble
*) p
)[0]);
1366 params
[3] = ((GLint
*) p
)[3];
1368 params
[2] = ((GLint
*) p
)[2];
1371 params
[1] = ((GLint
*) p
)[1];
1374 params
[0] = ((GLint
*) p
)[0];
1378 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1379 params
[i
] = v
.value_int_n
.ints
[i
];
1383 params
[0] = INT64_TO_INT(((GLint64
*) p
)[0]);
1387 params
[0] = BOOLEAN_TO_INT(*(GLboolean
*) p
);
1391 m
= *(GLmatrix
**) p
;
1392 for (i
= 0; i
< 16; i
++)
1393 params
[i
] = FLOAT_TO_INT(m
->m
[i
]);
1397 m
= *(GLmatrix
**) p
;
1398 for (i
= 0; i
< 16; i
++)
1399 params
[i
] = FLOAT_TO_INT(m
->m
[transpose
[i
]]);
1410 shift
= d
->type
- TYPE_BIT_0
;
1411 params
[0] = (*(GLbitfield
*) p
>> shift
) & 1;
1417 _mesa_GetInteger64v(GLenum pname
, GLint64
*params
)
1419 const struct value_desc
*d
;
1425 d
= find_value("glGetInteger64v", pname
, &p
, &v
);
1430 params
[0] = d
->offset
;
1434 params
[3] = IROUND64(((GLfloat
*) p
)[3]);
1436 params
[2] = IROUND64(((GLfloat
*) p
)[2]);
1438 params
[1] = IROUND64(((GLfloat
*) p
)[1]);
1440 params
[0] = IROUND64(((GLfloat
*) p
)[0]);
1444 params
[3] = FLOAT_TO_INT64(((GLfloat
*) p
)[3]);
1446 params
[2] = FLOAT_TO_INT64(((GLfloat
*) p
)[2]);
1448 params
[1] = FLOAT_TO_INT64(((GLfloat
*) p
)[1]);
1450 params
[0] = FLOAT_TO_INT64(((GLfloat
*) p
)[0]);
1454 params
[0] = FLOAT_TO_INT64(((GLdouble
*) p
)[0]);
1458 params
[3] = ((GLint
*) p
)[3];
1460 params
[2] = ((GLint
*) p
)[2];
1463 params
[1] = ((GLint
*) p
)[1];
1466 params
[0] = ((GLint
*) p
)[0];
1470 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1471 params
[i
] = INT_TO_BOOLEAN(v
.value_int_n
.ints
[i
]);
1475 params
[0] = ((GLint64
*) p
)[0];
1479 params
[0] = ((GLboolean
*) p
)[0];
1483 m
= *(GLmatrix
**) p
;
1484 for (i
= 0; i
< 16; i
++)
1485 params
[i
] = FLOAT_TO_INT64(m
->m
[i
]);
1489 m
= *(GLmatrix
**) p
;
1490 for (i
= 0; i
< 16; i
++)
1491 params
[i
] = FLOAT_TO_INT64(m
->m
[transpose
[i
]]);
1502 shift
= d
->type
- TYPE_BIT_0
;
1503 params
[0] = (*(GLbitfield
*) p
>> shift
) & 1;
1509 _mesa_GetDoublev(GLenum pname
, GLdouble
*params
)
1511 const struct value_desc
*d
;
1517 d
= find_value("glGetDoublev", pname
, &p
, &v
);
1522 params
[0] = d
->offset
;
1527 params
[3] = ((GLfloat
*) p
)[3];
1530 params
[2] = ((GLfloat
*) p
)[2];
1533 params
[1] = ((GLfloat
*) p
)[1];
1536 params
[0] = ((GLfloat
*) p
)[0];
1540 params
[0] = ((GLdouble
*) p
)[0];
1544 params
[3] = ((GLint
*) p
)[3];
1546 params
[2] = ((GLint
*) p
)[2];
1549 params
[1] = ((GLint
*) p
)[1];
1552 params
[0] = ((GLint
*) p
)[0];
1556 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1557 params
[i
] = v
.value_int_n
.ints
[i
];
1561 params
[0] = (GLdouble
) (((GLint64
*) p
)[0]);
1565 params
[0] = *(GLboolean
*) p
;
1569 m
= *(GLmatrix
**) p
;
1570 for (i
= 0; i
< 16; i
++)
1571 params
[i
] = m
->m
[i
];
1575 m
= *(GLmatrix
**) p
;
1576 for (i
= 0; i
< 16; i
++)
1577 params
[i
] = m
->m
[transpose
[i
]];
1588 shift
= d
->type
- TYPE_BIT_0
;
1589 params
[0] = (*(GLbitfield
*) p
>> shift
) & 1;
1594 static enum value_type
1595 find_value_indexed(const char *func
, GLenum pname
, GLuint index
, union value
*v
)
1597 GET_CURRENT_CONTEXT(ctx
);
1602 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1604 if (!ctx
->Extensions
.EXT_draw_buffers2
)
1606 v
->value_int
= (ctx
->Color
.BlendEnabled
>> index
) & 1;
1611 case GL_BLEND_SRC_RGB
:
1612 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1614 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1616 v
->value_int
= ctx
->Color
.Blend
[index
].SrcRGB
;
1618 case GL_BLEND_SRC_ALPHA
:
1619 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1621 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1623 v
->value_int
= ctx
->Color
.Blend
[index
].SrcA
;
1627 case GL_BLEND_DST_RGB
:
1628 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1630 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1632 v
->value_int
= ctx
->Color
.Blend
[index
].DstRGB
;
1634 case GL_BLEND_DST_ALPHA
:
1635 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1637 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1639 v
->value_int
= ctx
->Color
.Blend
[index
].DstA
;
1641 case GL_BLEND_EQUATION_RGB
:
1642 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1644 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1646 v
->value_int
= ctx
->Color
.Blend
[index
].EquationRGB
;
1648 case GL_BLEND_EQUATION_ALPHA
:
1649 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1651 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1653 v
->value_int
= ctx
->Color
.Blend
[index
].EquationA
;
1656 case GL_COLOR_WRITEMASK
:
1657 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1659 if (!ctx
->Extensions
.EXT_draw_buffers2
)
1661 v
->value_int_4
[0] = ctx
->Color
.ColorMask
[index
][RCOMP
] ? 1 : 0;
1662 v
->value_int_4
[1] = ctx
->Color
.ColorMask
[index
][GCOMP
] ? 1 : 0;
1663 v
->value_int_4
[2] = ctx
->Color
.ColorMask
[index
][BCOMP
] ? 1 : 0;
1664 v
->value_int_4
[3] = ctx
->Color
.ColorMask
[index
][ACOMP
] ? 1 : 0;
1667 case GL_TRANSFORM_FEEDBACK_BUFFER_START
:
1668 if (index
>= ctx
->Const
.MaxTransformFeedbackBuffers
)
1670 if (!ctx
->Extensions
.EXT_transform_feedback
)
1672 v
->value_int64
= ctx
->TransformFeedback
.CurrentObject
->Offset
[index
];
1675 case GL_TRANSFORM_FEEDBACK_BUFFER_SIZE
:
1676 if (index
>= ctx
->Const
.MaxTransformFeedbackBuffers
)
1678 if (!ctx
->Extensions
.EXT_transform_feedback
)
1681 = ctx
->TransformFeedback
.CurrentObject
->RequestedSize
[index
];
1684 case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING
:
1685 if (index
>= ctx
->Const
.MaxTransformFeedbackBuffers
)
1687 if (!ctx
->Extensions
.EXT_transform_feedback
)
1689 v
->value_int
= ctx
->TransformFeedback
.CurrentObject
->BufferNames
[index
];
1692 case GL_UNIFORM_BUFFER_BINDING
:
1693 if (index
>= ctx
->Const
.MaxUniformBufferBindings
)
1695 if (!ctx
->Extensions
.ARB_uniform_buffer_object
)
1697 v
->value_int
= ctx
->UniformBufferBindings
[index
].BufferObject
->Name
;
1700 case GL_UNIFORM_BUFFER_START
:
1701 if (index
>= ctx
->Const
.MaxUniformBufferBindings
)
1703 if (!ctx
->Extensions
.ARB_uniform_buffer_object
)
1705 v
->value_int
= ctx
->UniformBufferBindings
[index
].Offset
;
1708 case GL_UNIFORM_BUFFER_SIZE
:
1709 if (index
>= ctx
->Const
.MaxUniformBufferBindings
)
1711 if (!ctx
->Extensions
.ARB_uniform_buffer_object
)
1713 v
->value_int
= ctx
->UniformBufferBindings
[index
].Size
;
1716 /* ARB_texture_multisample / GL3.2 */
1717 case GL_SAMPLE_MASK_VALUE
:
1720 if (!ctx
->Extensions
.ARB_texture_multisample
)
1722 v
->value_int
= ctx
->Multisample
.SampleMaskValue
;
1725 case GL_ATOMIC_COUNTER_BUFFER_BINDING
:
1726 if (!ctx
->Extensions
.ARB_shader_atomic_counters
)
1728 if (index
>= ctx
->Const
.MaxAtomicBufferBindings
)
1730 v
->value_int
= ctx
->AtomicBufferBindings
[index
].BufferObject
->Name
;
1733 case GL_ATOMIC_COUNTER_BUFFER_START
:
1734 if (!ctx
->Extensions
.ARB_shader_atomic_counters
)
1736 if (index
>= ctx
->Const
.MaxAtomicBufferBindings
)
1738 v
->value_int64
= ctx
->AtomicBufferBindings
[index
].Offset
;
1741 case GL_ATOMIC_COUNTER_BUFFER_SIZE
:
1742 if (!ctx
->Extensions
.ARB_shader_atomic_counters
)
1744 if (index
>= ctx
->Const
.MaxAtomicBufferBindings
)
1746 v
->value_int64
= ctx
->AtomicBufferBindings
[index
].Size
;
1749 case GL_VERTEX_BINDING_DIVISOR
:
1750 if (!_mesa_is_desktop_gl(ctx
) || !ctx
->Extensions
.ARB_instanced_arrays
)
1752 if (index
>= ctx
->Const
.VertexProgram
.MaxAttribs
)
1754 v
->value_int
= ctx
->Array
.ArrayObj
->VertexBinding
[VERT_ATTRIB_GENERIC(index
)].InstanceDivisor
;
1757 case GL_VERTEX_BINDING_OFFSET
:
1758 if (!_mesa_is_desktop_gl(ctx
))
1760 if (index
>= ctx
->Const
.VertexProgram
.MaxAttribs
)
1762 v
->value_int
= ctx
->Array
.ArrayObj
->VertexBinding
[VERT_ATTRIB_GENERIC(index
)].Offset
;
1765 case GL_VERTEX_BINDING_STRIDE
:
1766 if (!_mesa_is_desktop_gl(ctx
))
1768 if (index
>= ctx
->Const
.VertexProgram
.MaxAttribs
)
1770 v
->value_int
= ctx
->Array
.ArrayObj
->VertexBinding
[VERT_ATTRIB_GENERIC(index
)].Stride
;
1775 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=%s)", func
,
1776 _mesa_lookup_enum_by_nr(pname
));
1777 return TYPE_INVALID
;
1779 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(pname=%s)", func
,
1780 _mesa_lookup_enum_by_nr(pname
));
1781 return TYPE_INVALID
;
1785 _mesa_GetBooleani_v( GLenum pname
, GLuint index
, GLboolean
*params
)
1788 enum value_type type
=
1789 find_value_indexed("glGetBooleani_v", pname
, index
, &v
);
1793 params
[0] = INT_TO_BOOLEAN(v
.value_int
);
1796 params
[0] = INT_TO_BOOLEAN(v
.value_int_4
[0]);
1797 params
[1] = INT_TO_BOOLEAN(v
.value_int_4
[1]);
1798 params
[2] = INT_TO_BOOLEAN(v
.value_int_4
[2]);
1799 params
[3] = INT_TO_BOOLEAN(v
.value_int_4
[3]);
1802 params
[0] = INT64_TO_BOOLEAN(v
.value_int
);
1805 ; /* nothing - GL error was recorded */
1810 _mesa_GetIntegeri_v( GLenum pname
, GLuint index
, GLint
*params
)
1813 enum value_type type
=
1814 find_value_indexed("glGetIntegeri_v", pname
, index
, &v
);
1818 params
[0] = v
.value_int
;
1821 params
[0] = v
.value_int_4
[0];
1822 params
[1] = v
.value_int_4
[1];
1823 params
[2] = v
.value_int_4
[2];
1824 params
[3] = v
.value_int_4
[3];
1827 params
[0] = INT64_TO_INT(v
.value_int
);
1830 ; /* nothing - GL error was recorded */
1835 _mesa_GetInteger64i_v( GLenum pname
, GLuint index
, GLint64
*params
)
1838 enum value_type type
=
1839 find_value_indexed("glGetInteger64i_v", pname
, index
, &v
);
1843 params
[0] = v
.value_int
;
1846 params
[0] = v
.value_int_4
[0];
1847 params
[1] = v
.value_int_4
[1];
1848 params
[2] = v
.value_int_4
[2];
1849 params
[3] = v
.value_int_4
[3];
1852 params
[0] = v
.value_int
;
1855 ; /* nothing - GL error was recorded */
1860 _mesa_GetFixedv(GLenum pname
, GLfixed
*params
)
1862 const struct value_desc
*d
;
1868 d
= find_value("glGetDoublev", pname
, &p
, &v
);
1873 params
[0] = INT_TO_FIXED(d
->offset
);
1878 params
[3] = FLOAT_TO_FIXED(((GLfloat
*) p
)[3]);
1881 params
[2] = FLOAT_TO_FIXED(((GLfloat
*) p
)[2]);
1884 params
[1] = FLOAT_TO_FIXED(((GLfloat
*) p
)[1]);
1887 params
[0] = FLOAT_TO_FIXED(((GLfloat
*) p
)[0]);
1891 params
[0] = FLOAT_TO_FIXED(((GLdouble
*) p
)[0]);
1895 params
[3] = INT_TO_FIXED(((GLint
*) p
)[3]);
1897 params
[2] = INT_TO_FIXED(((GLint
*) p
)[2]);
1900 params
[1] = INT_TO_FIXED(((GLint
*) p
)[1]);
1903 params
[0] = INT_TO_FIXED(((GLint
*) p
)[0]);
1907 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1908 params
[i
] = INT_TO_FIXED(v
.value_int_n
.ints
[i
]);
1912 params
[0] = ((GLint64
*) p
)[0];
1916 params
[0] = BOOLEAN_TO_FIXED(((GLboolean
*) p
)[0]);
1920 m
= *(GLmatrix
**) p
;
1921 for (i
= 0; i
< 16; i
++)
1922 params
[i
] = FLOAT_TO_FIXED(m
->m
[i
]);
1926 m
= *(GLmatrix
**) p
;
1927 for (i
= 0; i
< 16; i
++)
1928 params
[i
] = FLOAT_TO_FIXED(m
->m
[transpose
[i
]]);
1939 shift
= d
->type
- TYPE_BIT_0
;
1940 params
[0] = BOOLEAN_TO_FIXED((*(GLbitfield
*) p
>> shift
) & 1);