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
{
139 EXTRA_NEW_FRAG_CLAMP
,
140 EXTRA_VALID_DRAW_BUFFER
,
141 EXTRA_VALID_TEXTURE_UNIT
,
142 EXTRA_VALID_CLIP_DISTANCE
,
148 #define NO_EXTRA NULL
153 GLubyte location
; /**< enum value_location */
154 GLubyte type
; /**< enum value_type */
161 GLfloat value_float_4
[4];
162 GLmatrix
*value_matrix
;
164 GLint value_int_4
[4];
168 /* Sigh, see GL_COMPRESSED_TEXTURE_FORMATS_ARB handling */
172 GLboolean value_bool
;
175 #define BUFFER_FIELD(field, type) \
176 LOC_BUFFER, type, offsetof(struct gl_framebuffer, field)
177 #define CONTEXT_FIELD(field, type) \
178 LOC_CONTEXT, type, offsetof(struct gl_context, field)
179 #define ARRAY_FIELD(field, type) \
180 LOC_ARRAY, type, offsetof(struct gl_array_object, field)
181 #undef CONST /* already defined through windows.h */
182 #define CONST(value) \
183 LOC_CONTEXT, TYPE_CONST, value
185 #define BUFFER_INT(field) BUFFER_FIELD(field, TYPE_INT)
186 #define BUFFER_ENUM(field) BUFFER_FIELD(field, TYPE_ENUM)
187 #define BUFFER_BOOL(field) BUFFER_FIELD(field, TYPE_BOOLEAN)
189 #define CONTEXT_INT(field) CONTEXT_FIELD(field, TYPE_INT)
190 #define CONTEXT_INT2(field) CONTEXT_FIELD(field, TYPE_INT_2)
191 #define CONTEXT_INT64(field) CONTEXT_FIELD(field, TYPE_INT64)
192 #define CONTEXT_ENUM(field) CONTEXT_FIELD(field, TYPE_ENUM)
193 #define CONTEXT_ENUM2(field) CONTEXT_FIELD(field, TYPE_ENUM_2)
194 #define CONTEXT_BOOL(field) CONTEXT_FIELD(field, TYPE_BOOLEAN)
195 #define CONTEXT_BIT0(field) CONTEXT_FIELD(field, TYPE_BIT_0)
196 #define CONTEXT_BIT1(field) CONTEXT_FIELD(field, TYPE_BIT_1)
197 #define CONTEXT_BIT2(field) CONTEXT_FIELD(field, TYPE_BIT_2)
198 #define CONTEXT_BIT3(field) CONTEXT_FIELD(field, TYPE_BIT_3)
199 #define CONTEXT_BIT4(field) CONTEXT_FIELD(field, TYPE_BIT_4)
200 #define CONTEXT_BIT5(field) CONTEXT_FIELD(field, TYPE_BIT_5)
201 #define CONTEXT_BIT6(field) CONTEXT_FIELD(field, TYPE_BIT_6)
202 #define CONTEXT_BIT7(field) CONTEXT_FIELD(field, TYPE_BIT_7)
203 #define CONTEXT_FLOAT(field) CONTEXT_FIELD(field, TYPE_FLOAT)
204 #define CONTEXT_FLOAT2(field) CONTEXT_FIELD(field, TYPE_FLOAT_2)
205 #define CONTEXT_FLOAT3(field) CONTEXT_FIELD(field, TYPE_FLOAT_3)
206 #define CONTEXT_FLOAT4(field) CONTEXT_FIELD(field, TYPE_FLOAT_4)
207 #define CONTEXT_MATRIX(field) CONTEXT_FIELD(field, TYPE_MATRIX)
208 #define CONTEXT_MATRIX_T(field) CONTEXT_FIELD(field, TYPE_MATRIX_T)
210 #define ARRAY_INT(field) ARRAY_FIELD(field, TYPE_INT)
211 #define ARRAY_ENUM(field) ARRAY_FIELD(field, TYPE_ENUM)
212 #define ARRAY_BOOL(field) ARRAY_FIELD(field, TYPE_BOOLEAN)
215 offsetof(struct gl_extensions, f)
217 #define EXTRA_EXT(e) \
218 static const int extra_##e[] = { \
222 #define EXTRA_EXT2(e1, e2) \
223 static const int extra_##e1##_##e2[] = { \
224 EXT(e1), EXT(e2), EXTRA_END \
227 /* The 'extra' mechanism is a way to specify extra checks (such as
228 * extensions or specific gl versions) or actions (flush current, new
229 * buffers) that we need to do before looking up an enum. We need to
230 * declare them all up front so we can refer to them in the value_desc
233 * Each EXTRA_ will be executed. For EXTRA_* enums of extensions and API
234 * versions, listing multiple ones in an array means an error will be thrown
235 * only if none of them are available. If you need to check for "AND"
236 * behavior, you would need to make a custom EXTRA_ enum.
239 static const int extra_new_buffers
[] = {
244 static const int extra_new_frag_clamp
[] = {
245 EXTRA_NEW_FRAG_CLAMP
,
249 static const int extra_valid_draw_buffer
[] = {
250 EXTRA_VALID_DRAW_BUFFER
,
254 static const int extra_valid_texture_unit
[] = {
255 EXTRA_VALID_TEXTURE_UNIT
,
259 static const int extra_valid_clip_distance
[] = {
260 EXTRA_VALID_CLIP_DISTANCE
,
264 static const int extra_flush_current_valid_texture_unit
[] = {
266 EXTRA_VALID_TEXTURE_UNIT
,
270 static const int extra_flush_current
[] = {
275 static const int extra_EXT_texture_integer
[] = {
276 EXT(EXT_texture_integer
),
280 static const int extra_EXT_texture_integer_and_new_buffers
[] = {
281 EXT(EXT_texture_integer
),
286 static const int extra_GLSL_130_es3
[] = {
292 static const int extra_texture_buffer_object
[] = {
295 EXT(ARB_texture_buffer_object
),
299 static const int extra_ARB_transform_feedback2_api_es3
[] = {
300 EXT(ARB_transform_feedback2
),
305 static const int extra_ARB_uniform_buffer_object_and_geometry_shader
[] = {
310 static const int extra_ARB_ES2_compatibility_api_es2
[] = {
311 EXT(ARB_ES2_compatibility
),
316 static const int extra_ARB_ES3_compatibility_api_es3
[] = {
317 EXT(ARB_ES3_compatibility
),
322 static const int extra_EXT_framebuffer_sRGB_and_new_buffers
[] = {
323 EXT(EXT_framebuffer_sRGB
),
328 static const int extra_MESA_texture_array_es3
[] = {
329 EXT(MESA_texture_array
),
334 EXTRA_EXT(ARB_texture_cube_map
);
335 EXTRA_EXT(MESA_texture_array
);
336 EXTRA_EXT(NV_fog_distance
);
337 EXTRA_EXT(EXT_texture_filter_anisotropic
);
338 EXTRA_EXT(NV_point_sprite
);
339 EXTRA_EXT(NV_texture_rectangle
);
340 EXTRA_EXT(EXT_stencil_two_side
);
341 EXTRA_EXT(EXT_depth_bounds_test
);
342 EXTRA_EXT(ARB_depth_clamp
);
343 EXTRA_EXT(ATI_fragment_shader
);
344 EXTRA_EXT(EXT_framebuffer_blit
);
345 EXTRA_EXT(EXT_provoking_vertex
);
346 EXTRA_EXT(ARB_fragment_shader
);
347 EXTRA_EXT(ARB_fragment_program
);
348 EXTRA_EXT2(ARB_framebuffer_object
, EXT_framebuffer_multisample
);
349 EXTRA_EXT(ARB_seamless_cube_map
);
351 EXTRA_EXT(ARB_vertex_shader
);
352 EXTRA_EXT(EXT_transform_feedback
);
353 EXTRA_EXT(ARB_transform_feedback3
);
354 EXTRA_EXT(EXT_pixel_buffer_object
);
355 EXTRA_EXT(ARB_vertex_program
);
356 EXTRA_EXT2(NV_point_sprite
, ARB_point_sprite
);
357 EXTRA_EXT2(ARB_vertex_program
, ARB_fragment_program
);
358 EXTRA_EXT(ARB_geometry_shader4
);
359 EXTRA_EXT(ARB_color_buffer_float
);
360 EXTRA_EXT(EXT_framebuffer_sRGB
);
361 EXTRA_EXT(OES_EGL_image_external
);
362 EXTRA_EXT(ARB_blend_func_extended
);
363 EXTRA_EXT(ARB_uniform_buffer_object
);
364 EXTRA_EXT(ARB_timer_query
);
365 EXTRA_EXT(ARB_map_buffer_alignment
);
366 EXTRA_EXT(ARB_texture_cube_map_array
);
367 EXTRA_EXT(ARB_texture_buffer_range
);
368 EXTRA_EXT(ARB_texture_multisample
);
371 extra_ARB_color_buffer_float_or_glcore
[] = {
372 EXT(ARB_color_buffer_float
),
378 extra_NV_primitive_restart
[] = {
379 EXT(NV_primitive_restart
),
383 static const int extra_version_30
[] = { EXTRA_VERSION_30
, EXTRA_END
};
384 static const int extra_version_31
[] = { EXTRA_VERSION_31
, EXTRA_END
};
385 static const int extra_version_32
[] = { EXTRA_VERSION_32
, EXTRA_END
};
387 static const int extra_gl30_es3
[] = {
393 static const int extra_gl32_es3
[] = {
400 extra_ARB_vertex_program_api_es2
[] = {
401 EXT(ARB_vertex_program
),
406 /* The ReadBuffer get token is valid under either full GL or under
407 * GLES2 if the NV_read_buffer extension is available. */
409 extra_NV_read_buffer_api_gl
[] = {
415 static const int extra_core_ARB_color_buffer_float_and_new_buffers
[] = {
417 EXT(ARB_color_buffer_float
),
422 /* This is the big table describing all the enums we accept in
423 * glGet*v(). The table is partitioned into six parts: enums
424 * understood by all GL APIs (OpenGL, GLES and GLES2), enums shared
425 * between OpenGL and GLES, enums exclusive to GLES, etc for the
426 * remaining combinations. To look up the enums valid in a given API
427 * we will use a hash table specific to that API. These tables are in
428 * turn generated at build time and included through get_hash.h.
431 #include "get_hash.h"
433 /* All we need now is a way to look up the value struct from the enum.
434 * The code generated by gcc for the old generated big switch
435 * statement is a big, balanced, open coded if/else tree, essentially
436 * an unrolled binary search. It would be natural to sort the new
437 * enum table and use bsearch(), but we will use a read-only hash
438 * table instead. bsearch() has a nice guaranteed worst case
439 * performance, but we're also guaranteed to hit that worst case
440 * (log2(n) iterations) for about half the enums. Instead, using an
441 * open addressing hash table, we can find the enum on the first try
442 * for 80% of the enums, 1 collision for 10% and never more than 5
443 * collisions for any enum (typical numbers). And the code is very
444 * simple, even though it feels a little magic. */
448 print_table_stats(int api
)
450 int i
, j
, collisions
[11], count
, hash
, mask
;
451 const struct value_desc
*d
;
452 const char *api_names
[] = {
453 [API_OPENGL_COMPAT
] = "GL",
454 [API_OPENGL_CORE
] = "GL_CORE",
455 [API_OPENGLES
] = "GLES",
456 [API_OPENGLES2
] = "GLES2",
458 const char *api_name
;
460 api_name
= api
< Elements(api_names
) ? api_names
[api
] : "N/A";
462 mask
= Elements(table(api
)) - 1;
463 memset(collisions
, 0, sizeof collisions
);
465 for (i
= 0; i
< Elements(table(api
)); i
++) {
469 d
= &values
[table(api
)[i
]];
470 hash
= (d
->pname
* prime_factor
);
473 if (values
[table(api
)[hash
& mask
]].pname
== d
->pname
)
485 printf("number of enums for %s: %d (total %ld)\n",
486 api_name
, count
, Elements(values
));
487 for (i
= 0; i
< Elements(collisions
) - 1; i
++)
488 if (collisions
[i
] > 0)
489 printf(" %d enums with %d %scollisions\n",
490 collisions
[i
], i
, i
== 10 ? "or more " : "");
495 * Initialize the enum hash for a given API
497 * This is called from one_time_init() to insert the enum values that
498 * are valid for the API in question into the enum hash table.
500 * \param the current context, for determining the API in question
502 void _mesa_init_get_hash(struct gl_context
*ctx
)
510 * Handle irregular enums
512 * Some values don't conform to the "well-known type at context
513 * pointer + offset" pattern, so we have this function to catch all
514 * the corner cases. Typically, it's a computed value or a one-off
515 * pointer to a custom struct or something.
517 * In this case we can't return a pointer to the value, so we'll have
518 * to use the temporary variable 'v' declared back in the calling
519 * glGet*v() function to store the result.
521 * \param ctx the current context
522 * \param d the struct value_desc that describes the enum
523 * \param v pointer to the tmp declared in the calling glGet*v() function
526 find_custom_value(struct gl_context
*ctx
, const struct value_desc
*d
, union value
*v
)
528 struct gl_buffer_object
**buffer_obj
;
529 struct gl_client_array
*array
;
533 case GL_MAJOR_VERSION
:
534 v
->value_int
= ctx
->Version
/ 10;
536 case GL_MINOR_VERSION
:
537 v
->value_int
= ctx
->Version
% 10;
543 case GL_TEXTURE_1D_ARRAY_EXT
:
544 case GL_TEXTURE_2D_ARRAY_EXT
:
545 case GL_TEXTURE_CUBE_MAP_ARB
:
546 case GL_TEXTURE_RECTANGLE_NV
:
547 case GL_TEXTURE_EXTERNAL_OES
:
548 v
->value_bool
= _mesa_IsEnabled(d
->pname
);
551 case GL_LINE_STIPPLE_PATTERN
:
552 /* This is the only GLushort, special case it here by promoting
553 * to an int rather than introducing a new type. */
554 v
->value_int
= ctx
->Line
.StipplePattern
;
557 case GL_CURRENT_RASTER_TEXTURE_COORDS
:
558 unit
= ctx
->Texture
.CurrentUnit
;
559 v
->value_float_4
[0] = ctx
->Current
.RasterTexCoords
[unit
][0];
560 v
->value_float_4
[1] = ctx
->Current
.RasterTexCoords
[unit
][1];
561 v
->value_float_4
[2] = ctx
->Current
.RasterTexCoords
[unit
][2];
562 v
->value_float_4
[3] = ctx
->Current
.RasterTexCoords
[unit
][3];
565 case GL_CURRENT_TEXTURE_COORDS
:
566 unit
= ctx
->Texture
.CurrentUnit
;
567 v
->value_float_4
[0] = ctx
->Current
.Attrib
[VERT_ATTRIB_TEX0
+ unit
][0];
568 v
->value_float_4
[1] = ctx
->Current
.Attrib
[VERT_ATTRIB_TEX0
+ unit
][1];
569 v
->value_float_4
[2] = ctx
->Current
.Attrib
[VERT_ATTRIB_TEX0
+ unit
][2];
570 v
->value_float_4
[3] = ctx
->Current
.Attrib
[VERT_ATTRIB_TEX0
+ unit
][3];
573 case GL_COLOR_WRITEMASK
:
574 v
->value_int_4
[0] = ctx
->Color
.ColorMask
[0][RCOMP
] ? 1 : 0;
575 v
->value_int_4
[1] = ctx
->Color
.ColorMask
[0][GCOMP
] ? 1 : 0;
576 v
->value_int_4
[2] = ctx
->Color
.ColorMask
[0][BCOMP
] ? 1 : 0;
577 v
->value_int_4
[3] = ctx
->Color
.ColorMask
[0][ACOMP
] ? 1 : 0;
581 v
->value_bool
= ctx
->Current
.Attrib
[VERT_ATTRIB_EDGEFLAG
][0] == 1.0;
585 v
->value_enum
= ctx
->ReadBuffer
->ColorReadBuffer
;
588 case GL_MAP2_GRID_DOMAIN
:
589 v
->value_float_4
[0] = ctx
->Eval
.MapGrid2u1
;
590 v
->value_float_4
[1] = ctx
->Eval
.MapGrid2u2
;
591 v
->value_float_4
[2] = ctx
->Eval
.MapGrid2v1
;
592 v
->value_float_4
[3] = ctx
->Eval
.MapGrid2v2
;
595 case GL_TEXTURE_STACK_DEPTH
:
596 unit
= ctx
->Texture
.CurrentUnit
;
597 v
->value_int
= ctx
->TextureMatrixStack
[unit
].Depth
+ 1;
599 case GL_TEXTURE_MATRIX
:
600 unit
= ctx
->Texture
.CurrentUnit
;
601 v
->value_matrix
= ctx
->TextureMatrixStack
[unit
].Top
;
604 case GL_TEXTURE_COORD_ARRAY
:
605 case GL_TEXTURE_COORD_ARRAY_SIZE
:
606 case GL_TEXTURE_COORD_ARRAY_TYPE
:
607 case GL_TEXTURE_COORD_ARRAY_STRIDE
:
608 array
= &ctx
->Array
.ArrayObj
->VertexAttrib
[VERT_ATTRIB_TEX(ctx
->Array
.ActiveTexture
)];
609 v
->value_int
= *(GLuint
*) ((char *) array
+ d
->offset
);
612 case GL_ACTIVE_TEXTURE_ARB
:
613 v
->value_int
= GL_TEXTURE0_ARB
+ ctx
->Texture
.CurrentUnit
;
615 case GL_CLIENT_ACTIVE_TEXTURE_ARB
:
616 v
->value_int
= GL_TEXTURE0_ARB
+ ctx
->Array
.ActiveTexture
;
619 case GL_MODELVIEW_STACK_DEPTH
:
620 case GL_PROJECTION_STACK_DEPTH
:
621 v
->value_int
= *(GLint
*) ((char *) ctx
+ d
->offset
) + 1;
624 case GL_MAX_TEXTURE_SIZE
:
625 case GL_MAX_3D_TEXTURE_SIZE
:
626 case GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB
:
627 p
= (GLuint
*) ((char *) ctx
+ d
->offset
);
628 v
->value_int
= 1 << (*p
- 1);
632 v
->value_int_4
[0] = ctx
->Scissor
.X
;
633 v
->value_int_4
[1] = ctx
->Scissor
.Y
;
634 v
->value_int_4
[2] = ctx
->Scissor
.Width
;
635 v
->value_int_4
[3] = ctx
->Scissor
.Height
;
640 ctx
->ListState
.CurrentList
? ctx
->ListState
.CurrentList
->Name
: 0;
643 if (!ctx
->CompileFlag
)
645 else if (ctx
->ExecuteFlag
)
646 v
->value_enum
= GL_COMPILE_AND_EXECUTE
;
648 v
->value_enum
= GL_COMPILE
;
652 v
->value_int_4
[0] = ctx
->Viewport
.X
;
653 v
->value_int_4
[1] = ctx
->Viewport
.Y
;
654 v
->value_int_4
[2] = ctx
->Viewport
.Width
;
655 v
->value_int_4
[3] = ctx
->Viewport
.Height
;
658 case GL_ACTIVE_STENCIL_FACE_EXT
:
659 v
->value_enum
= ctx
->Stencil
.ActiveFace
? GL_BACK
: GL_FRONT
;
662 case GL_STENCIL_FAIL
:
663 v
->value_enum
= ctx
->Stencil
.FailFunc
[ctx
->Stencil
.ActiveFace
];
665 case GL_STENCIL_FUNC
:
666 v
->value_enum
= ctx
->Stencil
.Function
[ctx
->Stencil
.ActiveFace
];
668 case GL_STENCIL_PASS_DEPTH_FAIL
:
669 v
->value_enum
= ctx
->Stencil
.ZFailFunc
[ctx
->Stencil
.ActiveFace
];
671 case GL_STENCIL_PASS_DEPTH_PASS
:
672 v
->value_enum
= ctx
->Stencil
.ZPassFunc
[ctx
->Stencil
.ActiveFace
];
675 v
->value_int
= _mesa_get_stencil_ref(ctx
, ctx
->Stencil
.ActiveFace
);
677 case GL_STENCIL_BACK_REF
:
678 v
->value_int
= _mesa_get_stencil_ref(ctx
, 1);
680 case GL_STENCIL_VALUE_MASK
:
681 v
->value_int
= ctx
->Stencil
.ValueMask
[ctx
->Stencil
.ActiveFace
];
683 case GL_STENCIL_WRITEMASK
:
684 v
->value_int
= ctx
->Stencil
.WriteMask
[ctx
->Stencil
.ActiveFace
];
687 case GL_NUM_EXTENSIONS
:
688 v
->value_int
= _mesa_get_extension_count(ctx
);
691 case GL_IMPLEMENTATION_COLOR_READ_TYPE_OES
:
692 v
->value_int
= _mesa_get_color_read_type(ctx
);
694 case GL_IMPLEMENTATION_COLOR_READ_FORMAT_OES
:
695 v
->value_int
= _mesa_get_color_read_format(ctx
);
698 case GL_CURRENT_MATRIX_STACK_DEPTH_ARB
:
699 v
->value_int
= ctx
->CurrentStack
->Depth
+ 1;
701 case GL_CURRENT_MATRIX_ARB
:
702 case GL_TRANSPOSE_CURRENT_MATRIX_ARB
:
703 v
->value_matrix
= ctx
->CurrentStack
->Top
;
706 case GL_NUM_COMPRESSED_TEXTURE_FORMATS_ARB
:
707 v
->value_int
= _mesa_get_compressed_formats(ctx
, NULL
);
709 case GL_COMPRESSED_TEXTURE_FORMATS_ARB
:
711 _mesa_get_compressed_formats(ctx
, v
->value_int_n
.ints
);
712 ASSERT(v
->value_int_n
.n
<= ARRAY_SIZE(v
->value_int_n
.ints
));
715 case GL_MAX_VARYING_FLOATS_ARB
:
716 case GL_MAX_FRAGMENT_INPUT_COMPONENTS
:
717 v
->value_int
= ctx
->Const
.MaxVarying
* 4;
720 /* Various object names */
722 case GL_TEXTURE_BINDING_1D
:
723 case GL_TEXTURE_BINDING_2D
:
724 case GL_TEXTURE_BINDING_3D
:
725 case GL_TEXTURE_BINDING_1D_ARRAY_EXT
:
726 case GL_TEXTURE_BINDING_2D_ARRAY_EXT
:
727 case GL_TEXTURE_BINDING_CUBE_MAP_ARB
:
728 case GL_TEXTURE_BINDING_RECTANGLE_NV
:
729 case GL_TEXTURE_BINDING_EXTERNAL_OES
:
730 case GL_TEXTURE_BINDING_CUBE_MAP_ARRAY
:
731 case GL_TEXTURE_BINDING_2D_MULTISAMPLE
:
732 case GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY
:
733 unit
= ctx
->Texture
.CurrentUnit
;
735 ctx
->Texture
.Unit
[unit
].CurrentTex
[d
->offset
]->Name
;
738 /* GL_ARB_vertex_buffer_object */
739 case GL_VERTEX_ARRAY_BUFFER_BINDING_ARB
:
740 case GL_NORMAL_ARRAY_BUFFER_BINDING_ARB
:
741 case GL_COLOR_ARRAY_BUFFER_BINDING_ARB
:
742 case GL_INDEX_ARRAY_BUFFER_BINDING_ARB
:
743 case GL_EDGE_FLAG_ARRAY_BUFFER_BINDING_ARB
:
744 case GL_SECONDARY_COLOR_ARRAY_BUFFER_BINDING_ARB
:
745 case GL_FOG_COORDINATE_ARRAY_BUFFER_BINDING_ARB
:
746 buffer_obj
= (struct gl_buffer_object
**)
747 ((char *) ctx
->Array
.ArrayObj
+ d
->offset
);
748 v
->value_int
= (*buffer_obj
)->Name
;
750 case GL_ARRAY_BUFFER_BINDING_ARB
:
751 v
->value_int
= ctx
->Array
.ArrayBufferObj
->Name
;
753 case GL_TEXTURE_COORD_ARRAY_BUFFER_BINDING_ARB
:
755 ctx
->Array
.ArrayObj
->VertexAttrib
[VERT_ATTRIB_TEX(ctx
->Array
.ActiveTexture
)].BufferObj
->Name
;
757 case GL_ELEMENT_ARRAY_BUFFER_BINDING_ARB
:
758 v
->value_int
= ctx
->Array
.ArrayObj
->ElementArrayBufferObj
->Name
;
761 /* ARB_copy_buffer */
762 case GL_COPY_READ_BUFFER
:
763 v
->value_int
= ctx
->CopyReadBuffer
->Name
;
765 case GL_COPY_WRITE_BUFFER
:
766 v
->value_int
= ctx
->CopyWriteBuffer
->Name
;
769 case GL_PIXEL_PACK_BUFFER_BINDING_EXT
:
770 v
->value_int
= ctx
->Pack
.BufferObj
->Name
;
772 case GL_PIXEL_UNPACK_BUFFER_BINDING_EXT
:
773 v
->value_int
= ctx
->Unpack
.BufferObj
->Name
;
775 case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING
:
776 v
->value_int
= ctx
->TransformFeedback
.CurrentBuffer
->Name
;
778 case GL_TRANSFORM_FEEDBACK_BUFFER_PAUSED
:
779 v
->value_int
= ctx
->TransformFeedback
.CurrentObject
->Paused
;
781 case GL_TRANSFORM_FEEDBACK_BUFFER_ACTIVE
:
782 v
->value_int
= ctx
->TransformFeedback
.CurrentObject
->Active
;
784 case GL_TRANSFORM_FEEDBACK_BINDING
:
785 v
->value_int
= ctx
->TransformFeedback
.CurrentObject
->Name
;
787 case GL_CURRENT_PROGRAM
:
789 ctx
->Shader
.ActiveProgram
? ctx
->Shader
.ActiveProgram
->Name
: 0;
791 case GL_READ_FRAMEBUFFER_BINDING_EXT
:
792 v
->value_int
= ctx
->ReadBuffer
->Name
;
794 case GL_RENDERBUFFER_BINDING_EXT
:
796 ctx
->CurrentRenderbuffer
? ctx
->CurrentRenderbuffer
->Name
: 0;
798 case GL_POINT_SIZE_ARRAY_BUFFER_BINDING_OES
:
799 v
->value_int
= ctx
->Array
.ArrayObj
->VertexAttrib
[VERT_ATTRIB_POINT_SIZE
].BufferObj
->Name
;
803 if (_mesa_get_clamp_fragment_color(ctx
))
804 COPY_4FV(v
->value_float_4
, ctx
->Fog
.Color
);
806 COPY_4FV(v
->value_float_4
, ctx
->Fog
.ColorUnclamped
);
808 case GL_COLOR_CLEAR_VALUE
:
809 if (_mesa_get_clamp_fragment_color(ctx
)) {
810 v
->value_float_4
[0] = CLAMP(ctx
->Color
.ClearColor
.f
[0], 0.0F
, 1.0F
);
811 v
->value_float_4
[1] = CLAMP(ctx
->Color
.ClearColor
.f
[1], 0.0F
, 1.0F
);
812 v
->value_float_4
[2] = CLAMP(ctx
->Color
.ClearColor
.f
[2], 0.0F
, 1.0F
);
813 v
->value_float_4
[3] = CLAMP(ctx
->Color
.ClearColor
.f
[3], 0.0F
, 1.0F
);
815 COPY_4FV(v
->value_float_4
, ctx
->Color
.ClearColor
.f
);
817 case GL_BLEND_COLOR_EXT
:
818 if (_mesa_get_clamp_fragment_color(ctx
))
819 COPY_4FV(v
->value_float_4
, ctx
->Color
.BlendColor
);
821 COPY_4FV(v
->value_float_4
, ctx
->Color
.BlendColorUnclamped
);
823 case GL_ALPHA_TEST_REF
:
824 if (_mesa_get_clamp_fragment_color(ctx
))
825 v
->value_float
= ctx
->Color
.AlphaRef
;
827 v
->value_float
= ctx
->Color
.AlphaRefUnclamped
;
829 case GL_MAX_VERTEX_UNIFORM_VECTORS
:
830 v
->value_int
= ctx
->Const
.VertexProgram
.MaxUniformComponents
/ 4;
833 case GL_MAX_FRAGMENT_UNIFORM_VECTORS
:
834 v
->value_int
= ctx
->Const
.FragmentProgram
.MaxUniformComponents
/ 4;
837 /* GL_ARB_texture_buffer_object */
838 case GL_TEXTURE_BUFFER_ARB
:
839 v
->value_int
= ctx
->Texture
.BufferObject
->Name
;
841 case GL_TEXTURE_BINDING_BUFFER_ARB
:
842 unit
= ctx
->Texture
.CurrentUnit
;
844 ctx
->Texture
.Unit
[unit
].CurrentTex
[TEXTURE_BUFFER_INDEX
]->Name
;
846 case GL_TEXTURE_BUFFER_DATA_STORE_BINDING_ARB
:
848 struct gl_buffer_object
*buf
=
849 ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
]
850 .CurrentTex
[TEXTURE_BUFFER_INDEX
]->BufferObject
;
851 v
->value_int
= buf
? buf
->Name
: 0;
854 case GL_TEXTURE_BUFFER_FORMAT_ARB
:
855 v
->value_int
= ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
]
856 .CurrentTex
[TEXTURE_BUFFER_INDEX
]->BufferObjectFormat
;
859 /* GL_ARB_sampler_objects */
860 case GL_SAMPLER_BINDING
:
862 struct gl_sampler_object
*samp
=
863 ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
].Sampler
;
866 * The sampler object may have been deleted on another context,
867 * so we try to lookup the sampler object before returning its Name.
869 if (samp
&& _mesa_lookup_samplerobj(ctx
, samp
->Name
)) {
870 v
->value_int
= samp
->Name
;
876 /* GL_ARB_uniform_buffer_object */
877 case GL_UNIFORM_BUFFER_BINDING
:
878 v
->value_int
= ctx
->UniformBuffer
->Name
;
880 /* GL_ARB_timer_query */
882 if (ctx
->Driver
.GetTimestamp
) {
883 v
->value_int64
= ctx
->Driver
.GetTimestamp(ctx
);
886 _mesa_problem(ctx
, "driver doesn't implement GetTimestamp");
893 * Check extra constraints on a struct value_desc descriptor
895 * If a struct value_desc has a non-NULL extra pointer, it means that
896 * there are a number of extra constraints to check or actions to
897 * perform. The extras is just an integer array where each integer
898 * encode different constraints or actions.
900 * \param ctx current context
901 * \param func name of calling glGet*v() function for error reporting
902 * \param d the struct value_desc that has the extra constraints
904 * \return GL_FALSE if all of the constraints were not satisfied,
908 check_extra(struct gl_context
*ctx
, const char *func
, const struct value_desc
*d
)
910 const GLuint version
= ctx
->Version
;
911 GLboolean api_check
= GL_FALSE
;
912 GLboolean api_found
= GL_FALSE
;
915 for (e
= d
->extra
; *e
!= EXTRA_END
; e
++) {
917 case EXTRA_VERSION_30
:
922 case EXTRA_VERSION_31
:
927 case EXTRA_VERSION_32
:
932 case EXTRA_NEW_FRAG_CLAMP
:
933 if (ctx
->NewState
& (_NEW_BUFFERS
| _NEW_FRAG_CLAMP
))
934 _mesa_update_state(ctx
);
938 if (ctx
->API
== API_OPENGLES2
)
943 if (_mesa_is_gles3(ctx
))
948 if (_mesa_is_desktop_gl(ctx
))
951 case EXTRA_API_GL_CORE
:
953 if (ctx
->API
== API_OPENGL_CORE
)
956 case EXTRA_NEW_BUFFERS
:
957 if (ctx
->NewState
& _NEW_BUFFERS
)
958 _mesa_update_state(ctx
);
960 case EXTRA_FLUSH_CURRENT
:
961 FLUSH_CURRENT(ctx
, 0);
963 case EXTRA_VALID_DRAW_BUFFER
:
964 if (d
->pname
- GL_DRAW_BUFFER0_ARB
>= ctx
->Const
.MaxDrawBuffers
) {
965 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(draw buffer %u)",
966 func
, d
->pname
- GL_DRAW_BUFFER0_ARB
);
970 case EXTRA_VALID_TEXTURE_UNIT
:
971 if (ctx
->Texture
.CurrentUnit
>= ctx
->Const
.MaxTextureCoordUnits
) {
972 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(texture %u)",
973 func
, ctx
->Texture
.CurrentUnit
);
977 case EXTRA_VALID_CLIP_DISTANCE
:
978 if (d
->pname
- GL_CLIP_DISTANCE0
>= ctx
->Const
.MaxClipPlanes
) {
979 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(clip distance %u)",
980 func
, d
->pname
- GL_CLIP_DISTANCE0
);
986 if (ctx
->Const
.GLSLVersion
>= 130)
989 case EXTRA_EXT_UBO_GS4
:
991 api_found
= (ctx
->Extensions
.ARB_uniform_buffer_object
&&
992 _mesa_has_geometry_shaders(ctx
));
996 default: /* *e is a offset into the extension struct */
998 if (*(GLboolean
*) ((char *) &ctx
->Extensions
+ *e
))
1004 if (api_check
&& !api_found
) {
1005 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=%s)", func
,
1006 _mesa_lookup_enum_by_nr(d
->pname
));
1013 static const struct value_desc error_value
=
1014 { 0, 0, TYPE_INVALID
, NO_OFFSET
, NO_EXTRA
};
1017 * Find the struct value_desc corresponding to the enum 'pname'.
1019 * We hash the enum value to get an index into the 'table' array,
1020 * which holds the index in the 'values' array of struct value_desc.
1021 * Once we've found the entry, we do the extra checks, if any, then
1022 * look up the value and return a pointer to it.
1024 * If the value has to be computed (for example, it's the result of a
1025 * function call or we need to add 1 to it), we use the tmp 'v' to
1028 * \param func name of glGet*v() func for error reporting
1029 * \param pname the enum value we're looking up
1030 * \param p is were we return the pointer to the value
1031 * \param v a tmp union value variable in the calling glGet*v() function
1033 * \return the struct value_desc corresponding to the enum or a struct
1034 * value_desc of TYPE_INVALID if not found. This lets the calling
1035 * glGet*v() function jump right into a switch statement and
1036 * handle errors there instead of having to check for NULL.
1038 static const struct value_desc
*
1039 find_value(const char *func
, GLenum pname
, void **p
, union value
*v
)
1041 GET_CURRENT_CONTEXT(ctx
);
1042 struct gl_texture_unit
*unit
;
1044 const struct value_desc
*d
;
1048 /* We index into the table_set[] list of per-API hash tables using the API's
1049 * value in the gl_api enum. Since GLES 3 doesn't have an API_OPENGL* enum
1050 * value since it's compatible with GLES2 its entry in table_set[] is at the
1053 STATIC_ASSERT(Elements(table_set
) == API_OPENGL_LAST
+ 2);
1054 if (_mesa_is_gles3(ctx
)) {
1055 api
= API_OPENGL_LAST
+ 1;
1057 mask
= Elements(table(api
)) - 1;
1058 hash
= (pname
* prime_factor
);
1060 int idx
= table(api
)[hash
& mask
];
1062 /* If the enum isn't valid, the hash walk ends with index 0,
1063 * pointing to the first entry of values[] which doesn't hold
1064 * any valid enum. */
1065 if (unlikely(idx
== 0)) {
1066 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=%s)", func
,
1067 _mesa_lookup_enum_by_nr(pname
));
1068 return &error_value
;
1072 if (likely(d
->pname
== pname
))
1078 if (unlikely(d
->extra
&& !check_extra(ctx
, func
, d
)))
1079 return &error_value
;
1081 switch (d
->location
) {
1083 *p
= ((char *) ctx
->DrawBuffer
+ d
->offset
);
1086 *p
= ((char *) ctx
+ d
->offset
);
1089 *p
= ((char *) ctx
->Array
.ArrayObj
+ d
->offset
);
1092 unit
= &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1093 *p
= ((char *) unit
+ d
->offset
);
1096 find_custom_value(ctx
, d
, v
);
1104 /* silence warning */
1105 return &error_value
;
1108 static const int transpose
[] = {
1116 _mesa_GetBooleanv(GLenum pname
, GLboolean
*params
)
1118 const struct value_desc
*d
;
1124 d
= find_value("glGetBooleanv", pname
, &p
, &v
);
1129 params
[0] = INT_TO_BOOLEAN(d
->offset
);
1134 params
[3] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[3]);
1137 params
[2] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[2]);
1140 params
[1] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[1]);
1143 params
[0] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[0]);
1147 params
[0] = FLOAT_TO_BOOLEAN(((GLdouble
*) p
)[0]);
1151 params
[3] = INT_TO_BOOLEAN(((GLint
*) p
)[3]);
1153 params
[2] = INT_TO_BOOLEAN(((GLint
*) p
)[2]);
1156 params
[1] = INT_TO_BOOLEAN(((GLint
*) p
)[1]);
1159 params
[0] = INT_TO_BOOLEAN(((GLint
*) p
)[0]);
1163 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1164 params
[i
] = INT_TO_BOOLEAN(v
.value_int_n
.ints
[i
]);
1168 params
[0] = INT64_TO_BOOLEAN(((GLint64
*) p
)[0]);
1172 params
[0] = ((GLboolean
*) p
)[0];
1176 m
= *(GLmatrix
**) p
;
1177 for (i
= 0; i
< 16; i
++)
1178 params
[i
] = FLOAT_TO_BOOLEAN(m
->m
[i
]);
1182 m
= *(GLmatrix
**) p
;
1183 for (i
= 0; i
< 16; i
++)
1184 params
[i
] = FLOAT_TO_BOOLEAN(m
->m
[transpose
[i
]]);
1195 shift
= d
->type
- TYPE_BIT_0
;
1196 params
[0] = (*(GLbitfield
*) p
>> shift
) & 1;
1202 _mesa_GetFloatv(GLenum pname
, GLfloat
*params
)
1204 const struct value_desc
*d
;
1210 d
= find_value("glGetFloatv", pname
, &p
, &v
);
1215 params
[0] = (GLfloat
) d
->offset
;
1220 params
[3] = ((GLfloat
*) p
)[3];
1223 params
[2] = ((GLfloat
*) p
)[2];
1226 params
[1] = ((GLfloat
*) p
)[1];
1229 params
[0] = ((GLfloat
*) p
)[0];
1233 params
[0] = (GLfloat
) (((GLdouble
*) p
)[0]);
1237 params
[3] = (GLfloat
) (((GLint
*) p
)[3]);
1239 params
[2] = (GLfloat
) (((GLint
*) p
)[2]);
1242 params
[1] = (GLfloat
) (((GLint
*) p
)[1]);
1245 params
[0] = (GLfloat
) (((GLint
*) p
)[0]);
1249 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1250 params
[i
] = INT_TO_FLOAT(v
.value_int_n
.ints
[i
]);
1254 params
[0] = (GLfloat
) (((GLint64
*) p
)[0]);
1258 params
[0] = BOOLEAN_TO_FLOAT(*(GLboolean
*) p
);
1262 m
= *(GLmatrix
**) p
;
1263 for (i
= 0; i
< 16; i
++)
1264 params
[i
] = m
->m
[i
];
1268 m
= *(GLmatrix
**) p
;
1269 for (i
= 0; i
< 16; i
++)
1270 params
[i
] = m
->m
[transpose
[i
]];
1281 shift
= d
->type
- TYPE_BIT_0
;
1282 params
[0] = BOOLEAN_TO_FLOAT((*(GLbitfield
*) p
>> shift
) & 1);
1288 _mesa_GetIntegerv(GLenum pname
, GLint
*params
)
1290 const struct value_desc
*d
;
1296 d
= find_value("glGetIntegerv", pname
, &p
, &v
);
1301 params
[0] = d
->offset
;
1305 params
[3] = IROUND(((GLfloat
*) p
)[3]);
1307 params
[2] = IROUND(((GLfloat
*) p
)[2]);
1309 params
[1] = IROUND(((GLfloat
*) p
)[1]);
1311 params
[0] = IROUND(((GLfloat
*) p
)[0]);
1315 params
[3] = FLOAT_TO_INT(((GLfloat
*) p
)[3]);
1317 params
[2] = FLOAT_TO_INT(((GLfloat
*) p
)[2]);
1319 params
[1] = FLOAT_TO_INT(((GLfloat
*) p
)[1]);
1321 params
[0] = FLOAT_TO_INT(((GLfloat
*) p
)[0]);
1325 params
[0] = FLOAT_TO_INT(((GLdouble
*) p
)[0]);
1329 params
[3] = ((GLint
*) p
)[3];
1331 params
[2] = ((GLint
*) p
)[2];
1334 params
[1] = ((GLint
*) p
)[1];
1337 params
[0] = ((GLint
*) p
)[0];
1341 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1342 params
[i
] = v
.value_int_n
.ints
[i
];
1346 params
[0] = INT64_TO_INT(((GLint64
*) p
)[0]);
1350 params
[0] = BOOLEAN_TO_INT(*(GLboolean
*) p
);
1354 m
= *(GLmatrix
**) p
;
1355 for (i
= 0; i
< 16; i
++)
1356 params
[i
] = FLOAT_TO_INT(m
->m
[i
]);
1360 m
= *(GLmatrix
**) p
;
1361 for (i
= 0; i
< 16; i
++)
1362 params
[i
] = FLOAT_TO_INT(m
->m
[transpose
[i
]]);
1373 shift
= d
->type
- TYPE_BIT_0
;
1374 params
[0] = (*(GLbitfield
*) p
>> shift
) & 1;
1380 _mesa_GetInteger64v(GLenum pname
, GLint64
*params
)
1382 const struct value_desc
*d
;
1388 d
= find_value("glGetInteger64v", pname
, &p
, &v
);
1393 params
[0] = d
->offset
;
1397 params
[3] = IROUND64(((GLfloat
*) p
)[3]);
1399 params
[2] = IROUND64(((GLfloat
*) p
)[2]);
1401 params
[1] = IROUND64(((GLfloat
*) p
)[1]);
1403 params
[0] = IROUND64(((GLfloat
*) p
)[0]);
1407 params
[3] = FLOAT_TO_INT64(((GLfloat
*) p
)[3]);
1409 params
[2] = FLOAT_TO_INT64(((GLfloat
*) p
)[2]);
1411 params
[1] = FLOAT_TO_INT64(((GLfloat
*) p
)[1]);
1413 params
[0] = FLOAT_TO_INT64(((GLfloat
*) p
)[0]);
1417 params
[0] = FLOAT_TO_INT64(((GLdouble
*) p
)[0]);
1421 params
[3] = ((GLint
*) p
)[3];
1423 params
[2] = ((GLint
*) p
)[2];
1426 params
[1] = ((GLint
*) p
)[1];
1429 params
[0] = ((GLint
*) p
)[0];
1433 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1434 params
[i
] = INT_TO_BOOLEAN(v
.value_int_n
.ints
[i
]);
1438 params
[0] = ((GLint64
*) p
)[0];
1442 params
[0] = ((GLboolean
*) p
)[0];
1446 m
= *(GLmatrix
**) p
;
1447 for (i
= 0; i
< 16; i
++)
1448 params
[i
] = FLOAT_TO_INT64(m
->m
[i
]);
1452 m
= *(GLmatrix
**) p
;
1453 for (i
= 0; i
< 16; i
++)
1454 params
[i
] = FLOAT_TO_INT64(m
->m
[transpose
[i
]]);
1465 shift
= d
->type
- TYPE_BIT_0
;
1466 params
[0] = (*(GLbitfield
*) p
>> shift
) & 1;
1472 _mesa_GetDoublev(GLenum pname
, GLdouble
*params
)
1474 const struct value_desc
*d
;
1480 d
= find_value("glGetDoublev", pname
, &p
, &v
);
1485 params
[0] = d
->offset
;
1490 params
[3] = ((GLfloat
*) p
)[3];
1493 params
[2] = ((GLfloat
*) p
)[2];
1496 params
[1] = ((GLfloat
*) p
)[1];
1499 params
[0] = ((GLfloat
*) p
)[0];
1503 params
[0] = ((GLdouble
*) p
)[0];
1507 params
[3] = ((GLint
*) p
)[3];
1509 params
[2] = ((GLint
*) p
)[2];
1512 params
[1] = ((GLint
*) p
)[1];
1515 params
[0] = ((GLint
*) p
)[0];
1519 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1520 params
[i
] = v
.value_int_n
.ints
[i
];
1524 params
[0] = (GLdouble
) (((GLint64
*) p
)[0]);
1528 params
[0] = *(GLboolean
*) p
;
1532 m
= *(GLmatrix
**) p
;
1533 for (i
= 0; i
< 16; i
++)
1534 params
[i
] = m
->m
[i
];
1538 m
= *(GLmatrix
**) p
;
1539 for (i
= 0; i
< 16; i
++)
1540 params
[i
] = m
->m
[transpose
[i
]];
1551 shift
= d
->type
- TYPE_BIT_0
;
1552 params
[0] = (*(GLbitfield
*) p
>> shift
) & 1;
1557 static enum value_type
1558 find_value_indexed(const char *func
, GLenum pname
, GLuint index
, union value
*v
)
1560 GET_CURRENT_CONTEXT(ctx
);
1565 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1567 if (!ctx
->Extensions
.EXT_draw_buffers2
)
1569 v
->value_int
= (ctx
->Color
.BlendEnabled
>> index
) & 1;
1574 case GL_BLEND_SRC_RGB
:
1575 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1577 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1579 v
->value_int
= ctx
->Color
.Blend
[index
].SrcRGB
;
1581 case GL_BLEND_SRC_ALPHA
:
1582 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1584 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1586 v
->value_int
= ctx
->Color
.Blend
[index
].SrcA
;
1590 case GL_BLEND_DST_RGB
:
1591 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1593 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1595 v
->value_int
= ctx
->Color
.Blend
[index
].DstRGB
;
1597 case GL_BLEND_DST_ALPHA
:
1598 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1600 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1602 v
->value_int
= ctx
->Color
.Blend
[index
].DstA
;
1604 case GL_BLEND_EQUATION_RGB
:
1605 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1607 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1609 v
->value_int
= ctx
->Color
.Blend
[index
].EquationRGB
;
1611 case GL_BLEND_EQUATION_ALPHA
:
1612 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1614 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1616 v
->value_int
= ctx
->Color
.Blend
[index
].EquationA
;
1619 case GL_COLOR_WRITEMASK
:
1620 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1622 if (!ctx
->Extensions
.EXT_draw_buffers2
)
1624 v
->value_int_4
[0] = ctx
->Color
.ColorMask
[index
][RCOMP
] ? 1 : 0;
1625 v
->value_int_4
[1] = ctx
->Color
.ColorMask
[index
][GCOMP
] ? 1 : 0;
1626 v
->value_int_4
[2] = ctx
->Color
.ColorMask
[index
][BCOMP
] ? 1 : 0;
1627 v
->value_int_4
[3] = ctx
->Color
.ColorMask
[index
][ACOMP
] ? 1 : 0;
1630 case GL_TRANSFORM_FEEDBACK_BUFFER_START
:
1631 if (index
>= ctx
->Const
.MaxTransformFeedbackBuffers
)
1633 if (!ctx
->Extensions
.EXT_transform_feedback
)
1635 v
->value_int64
= ctx
->TransformFeedback
.CurrentObject
->Offset
[index
];
1638 case GL_TRANSFORM_FEEDBACK_BUFFER_SIZE
:
1639 if (index
>= ctx
->Const
.MaxTransformFeedbackBuffers
)
1641 if (!ctx
->Extensions
.EXT_transform_feedback
)
1644 = ctx
->TransformFeedback
.CurrentObject
->RequestedSize
[index
];
1647 case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING
:
1648 if (index
>= ctx
->Const
.MaxTransformFeedbackBuffers
)
1650 if (!ctx
->Extensions
.EXT_transform_feedback
)
1652 v
->value_int
= ctx
->TransformFeedback
.CurrentObject
->BufferNames
[index
];
1655 case GL_UNIFORM_BUFFER_BINDING
:
1656 if (index
>= ctx
->Const
.MaxUniformBufferBindings
)
1658 if (!ctx
->Extensions
.ARB_uniform_buffer_object
)
1660 v
->value_int
= ctx
->UniformBufferBindings
[index
].BufferObject
->Name
;
1663 case GL_UNIFORM_BUFFER_START
:
1664 if (index
>= ctx
->Const
.MaxUniformBufferBindings
)
1666 if (!ctx
->Extensions
.ARB_uniform_buffer_object
)
1668 v
->value_int
= ctx
->UniformBufferBindings
[index
].Offset
;
1671 case GL_UNIFORM_BUFFER_SIZE
:
1672 if (index
>= ctx
->Const
.MaxUniformBufferBindings
)
1674 if (!ctx
->Extensions
.ARB_uniform_buffer_object
)
1676 v
->value_int
= ctx
->UniformBufferBindings
[index
].Size
;
1679 /* ARB_texture_multisample / GL3.2 */
1680 case GL_SAMPLE_MASK_VALUE
:
1683 if (!ctx
->Extensions
.ARB_texture_multisample
)
1685 v
->value_int
= ctx
->Multisample
.SampleMaskValue
;
1690 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=%s)", func
,
1691 _mesa_lookup_enum_by_nr(pname
));
1692 return TYPE_INVALID
;
1694 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(pname=%s)", func
,
1695 _mesa_lookup_enum_by_nr(pname
));
1696 return TYPE_INVALID
;
1700 _mesa_GetBooleani_v( GLenum pname
, GLuint index
, GLboolean
*params
)
1703 enum value_type type
=
1704 find_value_indexed("glGetBooleani_v", pname
, index
, &v
);
1708 params
[0] = INT_TO_BOOLEAN(v
.value_int
);
1711 params
[0] = INT_TO_BOOLEAN(v
.value_int_4
[0]);
1712 params
[1] = INT_TO_BOOLEAN(v
.value_int_4
[1]);
1713 params
[2] = INT_TO_BOOLEAN(v
.value_int_4
[2]);
1714 params
[3] = INT_TO_BOOLEAN(v
.value_int_4
[3]);
1717 params
[0] = INT64_TO_BOOLEAN(v
.value_int
);
1720 ; /* nothing - GL error was recorded */
1725 _mesa_GetIntegeri_v( GLenum pname
, GLuint index
, GLint
*params
)
1728 enum value_type type
=
1729 find_value_indexed("glGetIntegeri_v", pname
, index
, &v
);
1733 params
[0] = v
.value_int
;
1736 params
[0] = v
.value_int_4
[0];
1737 params
[1] = v
.value_int_4
[1];
1738 params
[2] = v
.value_int_4
[2];
1739 params
[3] = v
.value_int_4
[3];
1742 params
[0] = INT64_TO_INT(v
.value_int
);
1745 ; /* nothing - GL error was recorded */
1750 _mesa_GetInteger64i_v( GLenum pname
, GLuint index
, GLint64
*params
)
1753 enum value_type type
=
1754 find_value_indexed("glGetInteger64i_v", pname
, index
, &v
);
1758 params
[0] = v
.value_int
;
1761 params
[0] = v
.value_int_4
[0];
1762 params
[1] = v
.value_int_4
[1];
1763 params
[2] = v
.value_int_4
[2];
1764 params
[3] = v
.value_int_4
[3];
1767 params
[0] = v
.value_int
;
1770 ; /* nothing - GL error was recorded */
1775 _mesa_GetFixedv(GLenum pname
, GLfixed
*params
)
1777 const struct value_desc
*d
;
1783 d
= find_value("glGetDoublev", pname
, &p
, &v
);
1788 params
[0] = INT_TO_FIXED(d
->offset
);
1793 params
[3] = FLOAT_TO_FIXED(((GLfloat
*) p
)[3]);
1796 params
[2] = FLOAT_TO_FIXED(((GLfloat
*) p
)[2]);
1799 params
[1] = FLOAT_TO_FIXED(((GLfloat
*) p
)[1]);
1802 params
[0] = FLOAT_TO_FIXED(((GLfloat
*) p
)[0]);
1806 params
[0] = FLOAT_TO_FIXED(((GLdouble
*) p
)[0]);
1810 params
[3] = INT_TO_FIXED(((GLint
*) p
)[3]);
1812 params
[2] = INT_TO_FIXED(((GLint
*) p
)[2]);
1815 params
[1] = INT_TO_FIXED(((GLint
*) p
)[1]);
1818 params
[0] = INT_TO_FIXED(((GLint
*) p
)[0]);
1822 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1823 params
[i
] = INT_TO_FIXED(v
.value_int_n
.ints
[i
]);
1827 params
[0] = ((GLint64
*) p
)[0];
1831 params
[0] = BOOLEAN_TO_FIXED(((GLboolean
*) p
)[0]);
1835 m
= *(GLmatrix
**) p
;
1836 for (i
= 0; i
< 16; i
++)
1837 params
[i
] = FLOAT_TO_FIXED(m
->m
[i
]);
1841 m
= *(GLmatrix
**) p
;
1842 for (i
= 0; i
< 16; i
++)
1843 params
[i
] = FLOAT_TO_FIXED(m
->m
[transpose
[i
]]);
1854 shift
= d
->type
- TYPE_BIT_0
;
1855 params
[0] = BOOLEAN_TO_FIXED((*(GLbitfield
*) p
>> shift
) & 1);