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_secondary_color_flush_current
[] = {
276 EXT(EXT_secondary_color
),
281 static const int extra_EXT_fog_coord_flush_current
[] = {
287 static const int extra_EXT_texture_integer
[] = {
288 EXT(EXT_texture_integer
),
292 static const int extra_EXT_texture_integer_and_new_buffers
[] = {
293 EXT(EXT_texture_integer
),
298 static const int extra_GLSL_130_es3
[] = {
304 static const int extra_texture_buffer_object
[] = {
307 EXT(ARB_texture_buffer_object
),
311 static const int extra_ARB_transform_feedback2_api_es3
[] = {
312 EXT(ARB_transform_feedback2
),
317 static const int extra_ARB_uniform_buffer_object_and_geometry_shader
[] = {
322 static const int extra_ARB_ES2_compatibility_api_es2
[] = {
323 EXT(ARB_ES2_compatibility
),
328 static const int extra_ARB_ES3_compatibility_api_es3
[] = {
329 EXT(ARB_ES3_compatibility
),
334 static const int extra_EXT_framebuffer_sRGB_and_new_buffers
[] = {
335 EXT(EXT_framebuffer_sRGB
),
340 static const int extra_MESA_texture_array_es3
[] = {
341 EXT(MESA_texture_array
),
346 EXTRA_EXT(ARB_texture_cube_map
);
347 EXTRA_EXT(MESA_texture_array
);
348 EXTRA_EXT2(EXT_secondary_color
, ARB_vertex_program
);
349 EXTRA_EXT(EXT_secondary_color
);
350 EXTRA_EXT(EXT_fog_coord
);
351 EXTRA_EXT(NV_fog_distance
);
352 EXTRA_EXT(EXT_texture_filter_anisotropic
);
353 EXTRA_EXT(NV_point_sprite
);
354 EXTRA_EXT(NV_texture_rectangle
);
355 EXTRA_EXT(EXT_stencil_two_side
);
356 EXTRA_EXT(EXT_depth_bounds_test
);
357 EXTRA_EXT(ARB_depth_clamp
);
358 EXTRA_EXT(ATI_fragment_shader
);
359 EXTRA_EXT(EXT_framebuffer_blit
);
360 EXTRA_EXT(ARB_shader_objects
);
361 EXTRA_EXT(EXT_provoking_vertex
);
362 EXTRA_EXT(ARB_fragment_shader
);
363 EXTRA_EXT(ARB_fragment_program
);
364 EXTRA_EXT2(ARB_framebuffer_object
, EXT_framebuffer_multisample
);
365 EXTRA_EXT(ARB_seamless_cube_map
);
367 EXTRA_EXT(ARB_vertex_shader
);
368 EXTRA_EXT(EXT_transform_feedback
);
369 EXTRA_EXT(ARB_transform_feedback3
);
370 EXTRA_EXT(EXT_pixel_buffer_object
);
371 EXTRA_EXT(ARB_vertex_program
);
372 EXTRA_EXT2(NV_point_sprite
, ARB_point_sprite
);
373 EXTRA_EXT2(ARB_vertex_program
, ARB_fragment_program
);
374 EXTRA_EXT(ARB_geometry_shader4
);
375 EXTRA_EXT(ARB_color_buffer_float
);
376 EXTRA_EXT(EXT_framebuffer_sRGB
);
377 EXTRA_EXT(OES_EGL_image_external
);
378 EXTRA_EXT(ARB_blend_func_extended
);
379 EXTRA_EXT(ARB_uniform_buffer_object
);
380 EXTRA_EXT(ARB_timer_query
);
381 EXTRA_EXT(ARB_map_buffer_alignment
);
382 EXTRA_EXT(ARB_texture_cube_map_array
);
383 EXTRA_EXT(ARB_texture_buffer_range
);
384 EXTRA_EXT(ARB_texture_multisample
);
387 extra_ARB_color_buffer_float_or_glcore
[] = {
388 EXT(ARB_color_buffer_float
),
394 extra_NV_primitive_restart
[] = {
395 EXT(NV_primitive_restart
),
399 static const int extra_version_30
[] = { EXTRA_VERSION_30
, EXTRA_END
};
400 static const int extra_version_31
[] = { EXTRA_VERSION_31
, EXTRA_END
};
401 static const int extra_version_32
[] = { EXTRA_VERSION_32
, EXTRA_END
};
403 static const int extra_gl30_es3
[] = {
409 static const int extra_gl32_es3
[] = {
416 extra_ARB_vertex_program_api_es2
[] = {
417 EXT(ARB_vertex_program
),
422 /* The ReadBuffer get token is valid under either full GL or under
423 * GLES2 if the NV_read_buffer extension is available. */
425 extra_NV_read_buffer_api_gl
[] = {
431 static const int extra_core_ARB_color_buffer_float_and_new_buffers
[] = {
433 EXT(ARB_color_buffer_float
),
438 /* This is the big table describing all the enums we accept in
439 * glGet*v(). The table is partitioned into six parts: enums
440 * understood by all GL APIs (OpenGL, GLES and GLES2), enums shared
441 * between OpenGL and GLES, enums exclusive to GLES, etc for the
442 * remaining combinations. To look up the enums valid in a given API
443 * we will use a hash table specific to that API. These tables are in
444 * turn generated at build time and included through get_hash.h.
447 #include "get_hash.h"
449 /* All we need now is a way to look up the value struct from the enum.
450 * The code generated by gcc for the old generated big switch
451 * statement is a big, balanced, open coded if/else tree, essentially
452 * an unrolled binary search. It would be natural to sort the new
453 * enum table and use bsearch(), but we will use a read-only hash
454 * table instead. bsearch() has a nice guaranteed worst case
455 * performance, but we're also guaranteed to hit that worst case
456 * (log2(n) iterations) for about half the enums. Instead, using an
457 * open addressing hash table, we can find the enum on the first try
458 * for 80% of the enums, 1 collision for 10% and never more than 5
459 * collisions for any enum (typical numbers). And the code is very
460 * simple, even though it feels a little magic. */
464 print_table_stats(int api
)
466 int i
, j
, collisions
[11], count
, hash
, mask
;
467 const struct value_desc
*d
;
468 const char *api_names
[] = {
469 [API_OPENGL_COMPAT
] = "GL",
470 [API_OPENGL_CORE
] = "GL_CORE",
471 [API_OPENGLES
] = "GLES",
472 [API_OPENGLES2
] = "GLES2",
474 const char *api_name
;
476 api_name
= api
< Elements(api_names
) ? api_names
[api
] : "N/A";
478 mask
= Elements(table(api
)) - 1;
479 memset(collisions
, 0, sizeof collisions
);
481 for (i
= 0; i
< Elements(table(api
)); i
++) {
485 d
= &values
[table(api
)[i
]];
486 hash
= (d
->pname
* prime_factor
);
489 if (values
[table(api
)[hash
& mask
]].pname
== d
->pname
)
501 printf("number of enums for %s: %d (total %ld)\n",
502 api_name
, count
, Elements(values
));
503 for (i
= 0; i
< Elements(collisions
) - 1; i
++)
504 if (collisions
[i
] > 0)
505 printf(" %d enums with %d %scollisions\n",
506 collisions
[i
], i
, i
== 10 ? "or more " : "");
511 * Initialize the enum hash for a given API
513 * This is called from one_time_init() to insert the enum values that
514 * are valid for the API in question into the enum hash table.
516 * \param the current context, for determining the API in question
518 void _mesa_init_get_hash(struct gl_context
*ctx
)
526 * Handle irregular enums
528 * Some values don't conform to the "well-known type at context
529 * pointer + offset" pattern, so we have this function to catch all
530 * the corner cases. Typically, it's a computed value or a one-off
531 * pointer to a custom struct or something.
533 * In this case we can't return a pointer to the value, so we'll have
534 * to use the temporary variable 'v' declared back in the calling
535 * glGet*v() function to store the result.
537 * \param ctx the current context
538 * \param d the struct value_desc that describes the enum
539 * \param v pointer to the tmp declared in the calling glGet*v() function
542 find_custom_value(struct gl_context
*ctx
, const struct value_desc
*d
, union value
*v
)
544 struct gl_buffer_object
**buffer_obj
;
545 struct gl_client_array
*array
;
549 case GL_MAJOR_VERSION
:
550 v
->value_int
= ctx
->Version
/ 10;
552 case GL_MINOR_VERSION
:
553 v
->value_int
= ctx
->Version
% 10;
559 case GL_TEXTURE_1D_ARRAY_EXT
:
560 case GL_TEXTURE_2D_ARRAY_EXT
:
561 case GL_TEXTURE_CUBE_MAP_ARB
:
562 case GL_TEXTURE_RECTANGLE_NV
:
563 case GL_TEXTURE_EXTERNAL_OES
:
564 v
->value_bool
= _mesa_IsEnabled(d
->pname
);
567 case GL_LINE_STIPPLE_PATTERN
:
568 /* This is the only GLushort, special case it here by promoting
569 * to an int rather than introducing a new type. */
570 v
->value_int
= ctx
->Line
.StipplePattern
;
573 case GL_CURRENT_RASTER_TEXTURE_COORDS
:
574 unit
= ctx
->Texture
.CurrentUnit
;
575 v
->value_float_4
[0] = ctx
->Current
.RasterTexCoords
[unit
][0];
576 v
->value_float_4
[1] = ctx
->Current
.RasterTexCoords
[unit
][1];
577 v
->value_float_4
[2] = ctx
->Current
.RasterTexCoords
[unit
][2];
578 v
->value_float_4
[3] = ctx
->Current
.RasterTexCoords
[unit
][3];
581 case GL_CURRENT_TEXTURE_COORDS
:
582 unit
= ctx
->Texture
.CurrentUnit
;
583 v
->value_float_4
[0] = ctx
->Current
.Attrib
[VERT_ATTRIB_TEX0
+ unit
][0];
584 v
->value_float_4
[1] = ctx
->Current
.Attrib
[VERT_ATTRIB_TEX0
+ unit
][1];
585 v
->value_float_4
[2] = ctx
->Current
.Attrib
[VERT_ATTRIB_TEX0
+ unit
][2];
586 v
->value_float_4
[3] = ctx
->Current
.Attrib
[VERT_ATTRIB_TEX0
+ unit
][3];
589 case GL_COLOR_WRITEMASK
:
590 v
->value_int_4
[0] = ctx
->Color
.ColorMask
[0][RCOMP
] ? 1 : 0;
591 v
->value_int_4
[1] = ctx
->Color
.ColorMask
[0][GCOMP
] ? 1 : 0;
592 v
->value_int_4
[2] = ctx
->Color
.ColorMask
[0][BCOMP
] ? 1 : 0;
593 v
->value_int_4
[3] = ctx
->Color
.ColorMask
[0][ACOMP
] ? 1 : 0;
597 v
->value_bool
= ctx
->Current
.Attrib
[VERT_ATTRIB_EDGEFLAG
][0] == 1.0;
601 v
->value_enum
= ctx
->ReadBuffer
->ColorReadBuffer
;
604 case GL_MAP2_GRID_DOMAIN
:
605 v
->value_float_4
[0] = ctx
->Eval
.MapGrid2u1
;
606 v
->value_float_4
[1] = ctx
->Eval
.MapGrid2u2
;
607 v
->value_float_4
[2] = ctx
->Eval
.MapGrid2v1
;
608 v
->value_float_4
[3] = ctx
->Eval
.MapGrid2v2
;
611 case GL_TEXTURE_STACK_DEPTH
:
612 unit
= ctx
->Texture
.CurrentUnit
;
613 v
->value_int
= ctx
->TextureMatrixStack
[unit
].Depth
+ 1;
615 case GL_TEXTURE_MATRIX
:
616 unit
= ctx
->Texture
.CurrentUnit
;
617 v
->value_matrix
= ctx
->TextureMatrixStack
[unit
].Top
;
620 case GL_TEXTURE_COORD_ARRAY
:
621 case GL_TEXTURE_COORD_ARRAY_SIZE
:
622 case GL_TEXTURE_COORD_ARRAY_TYPE
:
623 case GL_TEXTURE_COORD_ARRAY_STRIDE
:
624 array
= &ctx
->Array
.ArrayObj
->VertexAttrib
[VERT_ATTRIB_TEX(ctx
->Array
.ActiveTexture
)];
625 v
->value_int
= *(GLuint
*) ((char *) array
+ d
->offset
);
628 case GL_ACTIVE_TEXTURE_ARB
:
629 v
->value_int
= GL_TEXTURE0_ARB
+ ctx
->Texture
.CurrentUnit
;
631 case GL_CLIENT_ACTIVE_TEXTURE_ARB
:
632 v
->value_int
= GL_TEXTURE0_ARB
+ ctx
->Array
.ActiveTexture
;
635 case GL_MODELVIEW_STACK_DEPTH
:
636 case GL_PROJECTION_STACK_DEPTH
:
637 v
->value_int
= *(GLint
*) ((char *) ctx
+ d
->offset
) + 1;
640 case GL_MAX_TEXTURE_SIZE
:
641 case GL_MAX_3D_TEXTURE_SIZE
:
642 case GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB
:
643 p
= (GLuint
*) ((char *) ctx
+ d
->offset
);
644 v
->value_int
= 1 << (*p
- 1);
648 v
->value_int_4
[0] = ctx
->Scissor
.X
;
649 v
->value_int_4
[1] = ctx
->Scissor
.Y
;
650 v
->value_int_4
[2] = ctx
->Scissor
.Width
;
651 v
->value_int_4
[3] = ctx
->Scissor
.Height
;
656 ctx
->ListState
.CurrentList
? ctx
->ListState
.CurrentList
->Name
: 0;
659 if (!ctx
->CompileFlag
)
661 else if (ctx
->ExecuteFlag
)
662 v
->value_enum
= GL_COMPILE_AND_EXECUTE
;
664 v
->value_enum
= GL_COMPILE
;
668 v
->value_int_4
[0] = ctx
->Viewport
.X
;
669 v
->value_int_4
[1] = ctx
->Viewport
.Y
;
670 v
->value_int_4
[2] = ctx
->Viewport
.Width
;
671 v
->value_int_4
[3] = ctx
->Viewport
.Height
;
674 case GL_ACTIVE_STENCIL_FACE_EXT
:
675 v
->value_enum
= ctx
->Stencil
.ActiveFace
? GL_BACK
: GL_FRONT
;
678 case GL_STENCIL_FAIL
:
679 v
->value_enum
= ctx
->Stencil
.FailFunc
[ctx
->Stencil
.ActiveFace
];
681 case GL_STENCIL_FUNC
:
682 v
->value_enum
= ctx
->Stencil
.Function
[ctx
->Stencil
.ActiveFace
];
684 case GL_STENCIL_PASS_DEPTH_FAIL
:
685 v
->value_enum
= ctx
->Stencil
.ZFailFunc
[ctx
->Stencil
.ActiveFace
];
687 case GL_STENCIL_PASS_DEPTH_PASS
:
688 v
->value_enum
= ctx
->Stencil
.ZPassFunc
[ctx
->Stencil
.ActiveFace
];
691 v
->value_int
= _mesa_get_stencil_ref(ctx
, ctx
->Stencil
.ActiveFace
);
693 case GL_STENCIL_BACK_REF
:
694 v
->value_int
= _mesa_get_stencil_ref(ctx
, 1);
696 case GL_STENCIL_VALUE_MASK
:
697 v
->value_int
= ctx
->Stencil
.ValueMask
[ctx
->Stencil
.ActiveFace
];
699 case GL_STENCIL_WRITEMASK
:
700 v
->value_int
= ctx
->Stencil
.WriteMask
[ctx
->Stencil
.ActiveFace
];
703 case GL_NUM_EXTENSIONS
:
704 v
->value_int
= _mesa_get_extension_count(ctx
);
707 case GL_IMPLEMENTATION_COLOR_READ_TYPE_OES
:
708 v
->value_int
= _mesa_get_color_read_type(ctx
);
710 case GL_IMPLEMENTATION_COLOR_READ_FORMAT_OES
:
711 v
->value_int
= _mesa_get_color_read_format(ctx
);
714 case GL_CURRENT_MATRIX_STACK_DEPTH_ARB
:
715 v
->value_int
= ctx
->CurrentStack
->Depth
+ 1;
717 case GL_CURRENT_MATRIX_ARB
:
718 case GL_TRANSPOSE_CURRENT_MATRIX_ARB
:
719 v
->value_matrix
= ctx
->CurrentStack
->Top
;
722 case GL_NUM_COMPRESSED_TEXTURE_FORMATS_ARB
:
723 v
->value_int
= _mesa_get_compressed_formats(ctx
, NULL
);
725 case GL_COMPRESSED_TEXTURE_FORMATS_ARB
:
727 _mesa_get_compressed_formats(ctx
, v
->value_int_n
.ints
);
728 ASSERT(v
->value_int_n
.n
<= 100);
731 case GL_MAX_VARYING_FLOATS_ARB
:
732 case GL_MAX_FRAGMENT_INPUT_COMPONENTS
:
733 v
->value_int
= ctx
->Const
.MaxVarying
* 4;
736 /* Various object names */
738 case GL_TEXTURE_BINDING_1D
:
739 case GL_TEXTURE_BINDING_2D
:
740 case GL_TEXTURE_BINDING_3D
:
741 case GL_TEXTURE_BINDING_1D_ARRAY_EXT
:
742 case GL_TEXTURE_BINDING_2D_ARRAY_EXT
:
743 case GL_TEXTURE_BINDING_CUBE_MAP_ARB
:
744 case GL_TEXTURE_BINDING_RECTANGLE_NV
:
745 case GL_TEXTURE_BINDING_EXTERNAL_OES
:
746 case GL_TEXTURE_BINDING_CUBE_MAP_ARRAY
:
747 case GL_TEXTURE_BINDING_2D_MULTISAMPLE
:
748 case GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY
:
749 unit
= ctx
->Texture
.CurrentUnit
;
751 ctx
->Texture
.Unit
[unit
].CurrentTex
[d
->offset
]->Name
;
754 /* GL_ARB_vertex_buffer_object */
755 case GL_VERTEX_ARRAY_BUFFER_BINDING_ARB
:
756 case GL_NORMAL_ARRAY_BUFFER_BINDING_ARB
:
757 case GL_COLOR_ARRAY_BUFFER_BINDING_ARB
:
758 case GL_INDEX_ARRAY_BUFFER_BINDING_ARB
:
759 case GL_EDGE_FLAG_ARRAY_BUFFER_BINDING_ARB
:
760 case GL_SECONDARY_COLOR_ARRAY_BUFFER_BINDING_ARB
:
761 case GL_FOG_COORDINATE_ARRAY_BUFFER_BINDING_ARB
:
762 buffer_obj
= (struct gl_buffer_object
**)
763 ((char *) ctx
->Array
.ArrayObj
+ d
->offset
);
764 v
->value_int
= (*buffer_obj
)->Name
;
766 case GL_ARRAY_BUFFER_BINDING_ARB
:
767 v
->value_int
= ctx
->Array
.ArrayBufferObj
->Name
;
769 case GL_TEXTURE_COORD_ARRAY_BUFFER_BINDING_ARB
:
771 ctx
->Array
.ArrayObj
->VertexAttrib
[VERT_ATTRIB_TEX(ctx
->Array
.ActiveTexture
)].BufferObj
->Name
;
773 case GL_ELEMENT_ARRAY_BUFFER_BINDING_ARB
:
774 v
->value_int
= ctx
->Array
.ArrayObj
->ElementArrayBufferObj
->Name
;
777 /* ARB_copy_buffer */
778 case GL_COPY_READ_BUFFER
:
779 v
->value_int
= ctx
->CopyReadBuffer
->Name
;
781 case GL_COPY_WRITE_BUFFER
:
782 v
->value_int
= ctx
->CopyWriteBuffer
->Name
;
785 case GL_PIXEL_PACK_BUFFER_BINDING_EXT
:
786 v
->value_int
= ctx
->Pack
.BufferObj
->Name
;
788 case GL_PIXEL_UNPACK_BUFFER_BINDING_EXT
:
789 v
->value_int
= ctx
->Unpack
.BufferObj
->Name
;
791 case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING
:
792 v
->value_int
= ctx
->TransformFeedback
.CurrentBuffer
->Name
;
794 case GL_TRANSFORM_FEEDBACK_BUFFER_PAUSED
:
795 v
->value_int
= ctx
->TransformFeedback
.CurrentObject
->Paused
;
797 case GL_TRANSFORM_FEEDBACK_BUFFER_ACTIVE
:
798 v
->value_int
= ctx
->TransformFeedback
.CurrentObject
->Active
;
800 case GL_TRANSFORM_FEEDBACK_BINDING
:
801 v
->value_int
= ctx
->TransformFeedback
.CurrentObject
->Name
;
803 case GL_CURRENT_PROGRAM
:
805 ctx
->Shader
.ActiveProgram
? ctx
->Shader
.ActiveProgram
->Name
: 0;
807 case GL_READ_FRAMEBUFFER_BINDING_EXT
:
808 v
->value_int
= ctx
->ReadBuffer
->Name
;
810 case GL_RENDERBUFFER_BINDING_EXT
:
812 ctx
->CurrentRenderbuffer
? ctx
->CurrentRenderbuffer
->Name
: 0;
814 case GL_POINT_SIZE_ARRAY_BUFFER_BINDING_OES
:
815 v
->value_int
= ctx
->Array
.ArrayObj
->VertexAttrib
[VERT_ATTRIB_POINT_SIZE
].BufferObj
->Name
;
819 if (_mesa_get_clamp_fragment_color(ctx
))
820 COPY_4FV(v
->value_float_4
, ctx
->Fog
.Color
);
822 COPY_4FV(v
->value_float_4
, ctx
->Fog
.ColorUnclamped
);
824 case GL_COLOR_CLEAR_VALUE
:
825 if (_mesa_get_clamp_fragment_color(ctx
)) {
826 v
->value_float_4
[0] = CLAMP(ctx
->Color
.ClearColor
.f
[0], 0.0F
, 1.0F
);
827 v
->value_float_4
[1] = CLAMP(ctx
->Color
.ClearColor
.f
[1], 0.0F
, 1.0F
);
828 v
->value_float_4
[2] = CLAMP(ctx
->Color
.ClearColor
.f
[2], 0.0F
, 1.0F
);
829 v
->value_float_4
[3] = CLAMP(ctx
->Color
.ClearColor
.f
[3], 0.0F
, 1.0F
);
831 COPY_4FV(v
->value_float_4
, ctx
->Color
.ClearColor
.f
);
833 case GL_BLEND_COLOR_EXT
:
834 if (_mesa_get_clamp_fragment_color(ctx
))
835 COPY_4FV(v
->value_float_4
, ctx
->Color
.BlendColor
);
837 COPY_4FV(v
->value_float_4
, ctx
->Color
.BlendColorUnclamped
);
839 case GL_ALPHA_TEST_REF
:
840 if (_mesa_get_clamp_fragment_color(ctx
))
841 v
->value_float
= ctx
->Color
.AlphaRef
;
843 v
->value_float
= ctx
->Color
.AlphaRefUnclamped
;
845 case GL_MAX_VERTEX_UNIFORM_VECTORS
:
846 v
->value_int
= ctx
->Const
.VertexProgram
.MaxUniformComponents
/ 4;
849 case GL_MAX_FRAGMENT_UNIFORM_VECTORS
:
850 v
->value_int
= ctx
->Const
.FragmentProgram
.MaxUniformComponents
/ 4;
853 /* GL_ARB_texture_buffer_object */
854 case GL_TEXTURE_BUFFER_ARB
:
855 v
->value_int
= ctx
->Texture
.BufferObject
->Name
;
857 case GL_TEXTURE_BINDING_BUFFER_ARB
:
858 unit
= ctx
->Texture
.CurrentUnit
;
860 ctx
->Texture
.Unit
[unit
].CurrentTex
[TEXTURE_BUFFER_INDEX
]->Name
;
862 case GL_TEXTURE_BUFFER_DATA_STORE_BINDING_ARB
:
864 struct gl_buffer_object
*buf
=
865 ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
]
866 .CurrentTex
[TEXTURE_BUFFER_INDEX
]->BufferObject
;
867 v
->value_int
= buf
? buf
->Name
: 0;
870 case GL_TEXTURE_BUFFER_FORMAT_ARB
:
871 v
->value_int
= ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
]
872 .CurrentTex
[TEXTURE_BUFFER_INDEX
]->BufferObjectFormat
;
875 /* GL_ARB_sampler_objects */
876 case GL_SAMPLER_BINDING
:
878 struct gl_sampler_object
*samp
=
879 ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
].Sampler
;
882 * The sampler object may have been deleted on another context,
883 * so we try to lookup the sampler object before returning its Name.
885 if (samp
&& _mesa_lookup_samplerobj(ctx
, samp
->Name
)) {
886 v
->value_int
= samp
->Name
;
892 /* GL_ARB_uniform_buffer_object */
893 case GL_UNIFORM_BUFFER_BINDING
:
894 v
->value_int
= ctx
->UniformBuffer
->Name
;
896 /* GL_ARB_timer_query */
898 if (ctx
->Driver
.GetTimestamp
) {
899 v
->value_int64
= ctx
->Driver
.GetTimestamp(ctx
);
902 _mesa_problem(ctx
, "driver doesn't implement GetTimestamp");
909 * Check extra constraints on a struct value_desc descriptor
911 * If a struct value_desc has a non-NULL extra pointer, it means that
912 * there are a number of extra constraints to check or actions to
913 * perform. The extras is just an integer array where each integer
914 * encode different constraints or actions.
916 * \param ctx current context
917 * \param func name of calling glGet*v() function for error reporting
918 * \param d the struct value_desc that has the extra constraints
920 * \return GL_FALSE if all of the constraints were not satisfied,
924 check_extra(struct gl_context
*ctx
, const char *func
, const struct value_desc
*d
)
926 const GLuint version
= ctx
->Version
;
927 GLboolean api_check
= GL_FALSE
;
928 GLboolean api_found
= GL_FALSE
;
931 for (e
= d
->extra
; *e
!= EXTRA_END
; e
++) {
933 case EXTRA_VERSION_30
:
938 case EXTRA_VERSION_31
:
943 case EXTRA_VERSION_32
:
948 case EXTRA_NEW_FRAG_CLAMP
:
949 if (ctx
->NewState
& (_NEW_BUFFERS
| _NEW_FRAG_CLAMP
))
950 _mesa_update_state(ctx
);
954 if (ctx
->API
== API_OPENGLES2
)
959 if (_mesa_is_gles3(ctx
))
964 if (_mesa_is_desktop_gl(ctx
))
967 case EXTRA_API_GL_CORE
:
969 if (ctx
->API
== API_OPENGL_CORE
)
972 case EXTRA_NEW_BUFFERS
:
973 if (ctx
->NewState
& _NEW_BUFFERS
)
974 _mesa_update_state(ctx
);
976 case EXTRA_FLUSH_CURRENT
:
977 FLUSH_CURRENT(ctx
, 0);
979 case EXTRA_VALID_DRAW_BUFFER
:
980 if (d
->pname
- GL_DRAW_BUFFER0_ARB
>= ctx
->Const
.MaxDrawBuffers
) {
981 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(draw buffer %u)",
982 func
, d
->pname
- GL_DRAW_BUFFER0_ARB
);
986 case EXTRA_VALID_TEXTURE_UNIT
:
987 if (ctx
->Texture
.CurrentUnit
>= ctx
->Const
.MaxTextureCoordUnits
) {
988 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(texture %u)",
989 func
, ctx
->Texture
.CurrentUnit
);
993 case EXTRA_VALID_CLIP_DISTANCE
:
994 if (d
->pname
- GL_CLIP_DISTANCE0
>= ctx
->Const
.MaxClipPlanes
) {
995 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(clip distance %u)",
996 func
, d
->pname
- GL_CLIP_DISTANCE0
);
1000 case EXTRA_GLSL_130
:
1001 api_check
= GL_TRUE
;
1002 if (ctx
->Const
.GLSLVersion
>= 130)
1003 api_found
= GL_TRUE
;
1005 case EXTRA_EXT_UBO_GS4
:
1006 api_check
= GL_TRUE
;
1007 api_found
= (ctx
->Extensions
.ARB_uniform_buffer_object
&&
1008 ctx
->Extensions
.ARB_geometry_shader4
);
1012 default: /* *e is a offset into the extension struct */
1013 api_check
= GL_TRUE
;
1014 if (*(GLboolean
*) ((char *) &ctx
->Extensions
+ *e
))
1015 api_found
= GL_TRUE
;
1020 if (api_check
&& !api_found
) {
1021 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=%s)", func
,
1022 _mesa_lookup_enum_by_nr(d
->pname
));
1029 static const struct value_desc error_value
=
1030 { 0, 0, TYPE_INVALID
, NO_OFFSET
, NO_EXTRA
};
1033 * Find the struct value_desc corresponding to the enum 'pname'.
1035 * We hash the enum value to get an index into the 'table' array,
1036 * which holds the index in the 'values' array of struct value_desc.
1037 * Once we've found the entry, we do the extra checks, if any, then
1038 * look up the value and return a pointer to it.
1040 * If the value has to be computed (for example, it's the result of a
1041 * function call or we need to add 1 to it), we use the tmp 'v' to
1044 * \param func name of glGet*v() func for error reporting
1045 * \param pname the enum value we're looking up
1046 * \param p is were we return the pointer to the value
1047 * \param v a tmp union value variable in the calling glGet*v() function
1049 * \return the struct value_desc corresponding to the enum or a struct
1050 * value_desc of TYPE_INVALID if not found. This lets the calling
1051 * glGet*v() function jump right into a switch statement and
1052 * handle errors there instead of having to check for NULL.
1054 static const struct value_desc
*
1055 find_value(const char *func
, GLenum pname
, void **p
, union value
*v
)
1057 GET_CURRENT_CONTEXT(ctx
);
1058 struct gl_texture_unit
*unit
;
1060 const struct value_desc
*d
;
1064 /* We index into the table_set[] list of per-API hash tables using the API's
1065 * value in the gl_api enum. Since GLES 3 doesn't have an API_OPENGL* enum
1066 * value since it's compatible with GLES2 its entry in table_set[] is at the
1069 STATIC_ASSERT(Elements(table_set
) == API_OPENGL_LAST
+ 2);
1070 if (_mesa_is_gles3(ctx
)) {
1071 api
= API_OPENGL_LAST
+ 1;
1073 mask
= Elements(table(api
)) - 1;
1074 hash
= (pname
* prime_factor
);
1076 int idx
= table(api
)[hash
& mask
];
1078 /* If the enum isn't valid, the hash walk ends with index 0,
1079 * pointing to the first entry of values[] which doesn't hold
1080 * any valid enum. */
1081 if (unlikely(idx
== 0)) {
1082 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=%s)", func
,
1083 _mesa_lookup_enum_by_nr(pname
));
1084 return &error_value
;
1088 if (likely(d
->pname
== pname
))
1094 if (unlikely(d
->extra
&& !check_extra(ctx
, func
, d
)))
1095 return &error_value
;
1097 switch (d
->location
) {
1099 *p
= ((char *) ctx
->DrawBuffer
+ d
->offset
);
1102 *p
= ((char *) ctx
+ d
->offset
);
1105 *p
= ((char *) ctx
->Array
.ArrayObj
+ d
->offset
);
1108 unit
= &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1109 *p
= ((char *) unit
+ d
->offset
);
1112 find_custom_value(ctx
, d
, v
);
1120 /* silence warning */
1121 return &error_value
;
1124 static const int transpose
[] = {
1132 _mesa_GetBooleanv(GLenum pname
, GLboolean
*params
)
1134 const struct value_desc
*d
;
1140 d
= find_value("glGetBooleanv", pname
, &p
, &v
);
1145 params
[0] = INT_TO_BOOLEAN(d
->offset
);
1150 params
[3] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[3]);
1153 params
[2] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[2]);
1156 params
[1] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[1]);
1159 params
[0] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[0]);
1163 params
[0] = FLOAT_TO_BOOLEAN(((GLdouble
*) p
)[0]);
1167 params
[3] = INT_TO_BOOLEAN(((GLint
*) p
)[3]);
1169 params
[2] = INT_TO_BOOLEAN(((GLint
*) p
)[2]);
1172 params
[1] = INT_TO_BOOLEAN(((GLint
*) p
)[1]);
1175 params
[0] = INT_TO_BOOLEAN(((GLint
*) p
)[0]);
1179 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1180 params
[i
] = INT_TO_BOOLEAN(v
.value_int_n
.ints
[i
]);
1184 params
[0] = INT64_TO_BOOLEAN(((GLint64
*) p
)[0]);
1188 params
[0] = ((GLboolean
*) p
)[0];
1192 m
= *(GLmatrix
**) p
;
1193 for (i
= 0; i
< 16; i
++)
1194 params
[i
] = FLOAT_TO_BOOLEAN(m
->m
[i
]);
1198 m
= *(GLmatrix
**) p
;
1199 for (i
= 0; i
< 16; i
++)
1200 params
[i
] = FLOAT_TO_BOOLEAN(m
->m
[transpose
[i
]]);
1211 shift
= d
->type
- TYPE_BIT_0
;
1212 params
[0] = (*(GLbitfield
*) p
>> shift
) & 1;
1218 _mesa_GetFloatv(GLenum pname
, GLfloat
*params
)
1220 const struct value_desc
*d
;
1226 d
= find_value("glGetFloatv", pname
, &p
, &v
);
1231 params
[0] = (GLfloat
) d
->offset
;
1236 params
[3] = ((GLfloat
*) p
)[3];
1239 params
[2] = ((GLfloat
*) p
)[2];
1242 params
[1] = ((GLfloat
*) p
)[1];
1245 params
[0] = ((GLfloat
*) p
)[0];
1249 params
[0] = (GLfloat
) (((GLdouble
*) p
)[0]);
1253 params
[3] = (GLfloat
) (((GLint
*) p
)[3]);
1255 params
[2] = (GLfloat
) (((GLint
*) p
)[2]);
1258 params
[1] = (GLfloat
) (((GLint
*) p
)[1]);
1261 params
[0] = (GLfloat
) (((GLint
*) p
)[0]);
1265 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1266 params
[i
] = INT_TO_FLOAT(v
.value_int_n
.ints
[i
]);
1270 params
[0] = (GLfloat
) (((GLint64
*) p
)[0]);
1274 params
[0] = BOOLEAN_TO_FLOAT(*(GLboolean
*) p
);
1278 m
= *(GLmatrix
**) p
;
1279 for (i
= 0; i
< 16; i
++)
1280 params
[i
] = m
->m
[i
];
1284 m
= *(GLmatrix
**) p
;
1285 for (i
= 0; i
< 16; i
++)
1286 params
[i
] = m
->m
[transpose
[i
]];
1297 shift
= d
->type
- TYPE_BIT_0
;
1298 params
[0] = BOOLEAN_TO_FLOAT((*(GLbitfield
*) p
>> shift
) & 1);
1304 _mesa_GetIntegerv(GLenum pname
, GLint
*params
)
1306 const struct value_desc
*d
;
1312 d
= find_value("glGetIntegerv", pname
, &p
, &v
);
1317 params
[0] = d
->offset
;
1321 params
[3] = IROUND(((GLfloat
*) p
)[3]);
1323 params
[2] = IROUND(((GLfloat
*) p
)[2]);
1325 params
[1] = IROUND(((GLfloat
*) p
)[1]);
1327 params
[0] = IROUND(((GLfloat
*) p
)[0]);
1331 params
[3] = FLOAT_TO_INT(((GLfloat
*) p
)[3]);
1333 params
[2] = FLOAT_TO_INT(((GLfloat
*) p
)[2]);
1335 params
[1] = FLOAT_TO_INT(((GLfloat
*) p
)[1]);
1337 params
[0] = FLOAT_TO_INT(((GLfloat
*) p
)[0]);
1341 params
[0] = FLOAT_TO_INT(((GLdouble
*) p
)[0]);
1345 params
[3] = ((GLint
*) p
)[3];
1347 params
[2] = ((GLint
*) p
)[2];
1350 params
[1] = ((GLint
*) p
)[1];
1353 params
[0] = ((GLint
*) p
)[0];
1357 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1358 params
[i
] = v
.value_int_n
.ints
[i
];
1362 params
[0] = INT64_TO_INT(((GLint64
*) p
)[0]);
1366 params
[0] = BOOLEAN_TO_INT(*(GLboolean
*) p
);
1370 m
= *(GLmatrix
**) p
;
1371 for (i
= 0; i
< 16; i
++)
1372 params
[i
] = FLOAT_TO_INT(m
->m
[i
]);
1376 m
= *(GLmatrix
**) p
;
1377 for (i
= 0; i
< 16; i
++)
1378 params
[i
] = FLOAT_TO_INT(m
->m
[transpose
[i
]]);
1389 shift
= d
->type
- TYPE_BIT_0
;
1390 params
[0] = (*(GLbitfield
*) p
>> shift
) & 1;
1396 _mesa_GetInteger64v(GLenum pname
, GLint64
*params
)
1398 const struct value_desc
*d
;
1404 d
= find_value("glGetInteger64v", pname
, &p
, &v
);
1409 params
[0] = d
->offset
;
1413 params
[3] = IROUND64(((GLfloat
*) p
)[3]);
1415 params
[2] = IROUND64(((GLfloat
*) p
)[2]);
1417 params
[1] = IROUND64(((GLfloat
*) p
)[1]);
1419 params
[0] = IROUND64(((GLfloat
*) p
)[0]);
1423 params
[3] = FLOAT_TO_INT64(((GLfloat
*) p
)[3]);
1425 params
[2] = FLOAT_TO_INT64(((GLfloat
*) p
)[2]);
1427 params
[1] = FLOAT_TO_INT64(((GLfloat
*) p
)[1]);
1429 params
[0] = FLOAT_TO_INT64(((GLfloat
*) p
)[0]);
1433 params
[0] = FLOAT_TO_INT64(((GLdouble
*) p
)[0]);
1437 params
[3] = ((GLint
*) p
)[3];
1439 params
[2] = ((GLint
*) p
)[2];
1442 params
[1] = ((GLint
*) p
)[1];
1445 params
[0] = ((GLint
*) p
)[0];
1449 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1450 params
[i
] = INT_TO_BOOLEAN(v
.value_int_n
.ints
[i
]);
1454 params
[0] = ((GLint64
*) p
)[0];
1458 params
[0] = ((GLboolean
*) p
)[0];
1462 m
= *(GLmatrix
**) p
;
1463 for (i
= 0; i
< 16; i
++)
1464 params
[i
] = FLOAT_TO_INT64(m
->m
[i
]);
1468 m
= *(GLmatrix
**) p
;
1469 for (i
= 0; i
< 16; i
++)
1470 params
[i
] = FLOAT_TO_INT64(m
->m
[transpose
[i
]]);
1481 shift
= d
->type
- TYPE_BIT_0
;
1482 params
[0] = (*(GLbitfield
*) p
>> shift
) & 1;
1488 _mesa_GetDoublev(GLenum pname
, GLdouble
*params
)
1490 const struct value_desc
*d
;
1496 d
= find_value("glGetDoublev", pname
, &p
, &v
);
1501 params
[0] = d
->offset
;
1506 params
[3] = ((GLfloat
*) p
)[3];
1509 params
[2] = ((GLfloat
*) p
)[2];
1512 params
[1] = ((GLfloat
*) p
)[1];
1515 params
[0] = ((GLfloat
*) p
)[0];
1519 params
[0] = ((GLdouble
*) p
)[0];
1523 params
[3] = ((GLint
*) p
)[3];
1525 params
[2] = ((GLint
*) p
)[2];
1528 params
[1] = ((GLint
*) p
)[1];
1531 params
[0] = ((GLint
*) p
)[0];
1535 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1536 params
[i
] = v
.value_int_n
.ints
[i
];
1540 params
[0] = (GLdouble
) (((GLint64
*) p
)[0]);
1544 params
[0] = *(GLboolean
*) p
;
1548 m
= *(GLmatrix
**) p
;
1549 for (i
= 0; i
< 16; i
++)
1550 params
[i
] = m
->m
[i
];
1554 m
= *(GLmatrix
**) p
;
1555 for (i
= 0; i
< 16; i
++)
1556 params
[i
] = m
->m
[transpose
[i
]];
1567 shift
= d
->type
- TYPE_BIT_0
;
1568 params
[0] = (*(GLbitfield
*) p
>> shift
) & 1;
1573 static enum value_type
1574 find_value_indexed(const char *func
, GLenum pname
, GLuint index
, union value
*v
)
1576 GET_CURRENT_CONTEXT(ctx
);
1581 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1583 if (!ctx
->Extensions
.EXT_draw_buffers2
)
1585 v
->value_int
= (ctx
->Color
.BlendEnabled
>> index
) & 1;
1590 case GL_BLEND_SRC_RGB
:
1591 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1593 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1595 v
->value_int
= ctx
->Color
.Blend
[index
].SrcRGB
;
1597 case GL_BLEND_SRC_ALPHA
:
1598 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1600 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1602 v
->value_int
= ctx
->Color
.Blend
[index
].SrcA
;
1606 case GL_BLEND_DST_RGB
:
1607 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1609 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1611 v
->value_int
= ctx
->Color
.Blend
[index
].DstRGB
;
1613 case GL_BLEND_DST_ALPHA
:
1614 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1616 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1618 v
->value_int
= ctx
->Color
.Blend
[index
].DstA
;
1620 case GL_BLEND_EQUATION_RGB
:
1621 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1623 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1625 v
->value_int
= ctx
->Color
.Blend
[index
].EquationRGB
;
1627 case GL_BLEND_EQUATION_ALPHA
:
1628 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1630 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1632 v
->value_int
= ctx
->Color
.Blend
[index
].EquationA
;
1635 case GL_COLOR_WRITEMASK
:
1636 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1638 if (!ctx
->Extensions
.EXT_draw_buffers2
)
1640 v
->value_int_4
[0] = ctx
->Color
.ColorMask
[index
][RCOMP
] ? 1 : 0;
1641 v
->value_int_4
[1] = ctx
->Color
.ColorMask
[index
][GCOMP
] ? 1 : 0;
1642 v
->value_int_4
[2] = ctx
->Color
.ColorMask
[index
][BCOMP
] ? 1 : 0;
1643 v
->value_int_4
[3] = ctx
->Color
.ColorMask
[index
][ACOMP
] ? 1 : 0;
1646 case GL_TRANSFORM_FEEDBACK_BUFFER_START
:
1647 if (index
>= ctx
->Const
.MaxTransformFeedbackBuffers
)
1649 if (!ctx
->Extensions
.EXT_transform_feedback
)
1651 v
->value_int64
= ctx
->TransformFeedback
.CurrentObject
->Offset
[index
];
1654 case GL_TRANSFORM_FEEDBACK_BUFFER_SIZE
:
1655 if (index
>= ctx
->Const
.MaxTransformFeedbackBuffers
)
1657 if (!ctx
->Extensions
.EXT_transform_feedback
)
1660 = ctx
->TransformFeedback
.CurrentObject
->RequestedSize
[index
];
1663 case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING
:
1664 if (index
>= ctx
->Const
.MaxTransformFeedbackBuffers
)
1666 if (!ctx
->Extensions
.EXT_transform_feedback
)
1668 v
->value_int
= ctx
->TransformFeedback
.CurrentObject
->BufferNames
[index
];
1671 case GL_UNIFORM_BUFFER_BINDING
:
1672 if (index
>= ctx
->Const
.MaxUniformBufferBindings
)
1674 if (!ctx
->Extensions
.ARB_uniform_buffer_object
)
1676 v
->value_int
= ctx
->UniformBufferBindings
[index
].BufferObject
->Name
;
1679 case GL_UNIFORM_BUFFER_START
:
1680 if (index
>= ctx
->Const
.MaxUniformBufferBindings
)
1682 if (!ctx
->Extensions
.ARB_uniform_buffer_object
)
1684 v
->value_int
= ctx
->UniformBufferBindings
[index
].Offset
;
1687 case GL_UNIFORM_BUFFER_SIZE
:
1688 if (index
>= ctx
->Const
.MaxUniformBufferBindings
)
1690 if (!ctx
->Extensions
.ARB_uniform_buffer_object
)
1692 v
->value_int
= ctx
->UniformBufferBindings
[index
].Size
;
1695 /* ARB_texture_multisample / GL3.2 */
1696 case GL_SAMPLE_MASK_VALUE
:
1699 if (!ctx
->Extensions
.ARB_texture_multisample
)
1701 v
->value_int
= ctx
->Multisample
.SampleMaskValue
;
1706 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=%s)", func
,
1707 _mesa_lookup_enum_by_nr(pname
));
1708 return TYPE_INVALID
;
1710 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(pname=%s)", func
,
1711 _mesa_lookup_enum_by_nr(pname
));
1712 return TYPE_INVALID
;
1716 _mesa_GetBooleani_v( GLenum pname
, GLuint index
, GLboolean
*params
)
1719 enum value_type type
=
1720 find_value_indexed("glGetBooleani_v", pname
, index
, &v
);
1724 params
[0] = INT_TO_BOOLEAN(v
.value_int
);
1727 params
[0] = INT_TO_BOOLEAN(v
.value_int_4
[0]);
1728 params
[1] = INT_TO_BOOLEAN(v
.value_int_4
[1]);
1729 params
[2] = INT_TO_BOOLEAN(v
.value_int_4
[2]);
1730 params
[3] = INT_TO_BOOLEAN(v
.value_int_4
[3]);
1733 params
[0] = INT64_TO_BOOLEAN(v
.value_int
);
1736 ; /* nothing - GL error was recorded */
1741 _mesa_GetIntegeri_v( GLenum pname
, GLuint index
, GLint
*params
)
1744 enum value_type type
=
1745 find_value_indexed("glGetIntegeri_v", pname
, index
, &v
);
1749 params
[0] = v
.value_int
;
1752 params
[0] = v
.value_int_4
[0];
1753 params
[1] = v
.value_int_4
[1];
1754 params
[2] = v
.value_int_4
[2];
1755 params
[3] = v
.value_int_4
[3];
1758 params
[0] = INT64_TO_INT(v
.value_int
);
1761 ; /* nothing - GL error was recorded */
1766 _mesa_GetInteger64i_v( GLenum pname
, GLuint index
, GLint64
*params
)
1769 enum value_type type
=
1770 find_value_indexed("glGetInteger64i_v", pname
, index
, &v
);
1774 params
[0] = v
.value_int
;
1777 params
[0] = v
.value_int_4
[0];
1778 params
[1] = v
.value_int_4
[1];
1779 params
[2] = v
.value_int_4
[2];
1780 params
[3] = v
.value_int_4
[3];
1783 params
[0] = v
.value_int
;
1786 ; /* nothing - GL error was recorded */
1791 _mesa_GetFixedv(GLenum pname
, GLfixed
*params
)
1793 const struct value_desc
*d
;
1799 d
= find_value("glGetDoublev", pname
, &p
, &v
);
1804 params
[0] = INT_TO_FIXED(d
->offset
);
1809 params
[3] = FLOAT_TO_FIXED(((GLfloat
*) p
)[3]);
1812 params
[2] = FLOAT_TO_FIXED(((GLfloat
*) p
)[2]);
1815 params
[1] = FLOAT_TO_FIXED(((GLfloat
*) p
)[1]);
1818 params
[0] = FLOAT_TO_FIXED(((GLfloat
*) p
)[0]);
1822 params
[0] = FLOAT_TO_FIXED(((GLdouble
*) p
)[0]);
1826 params
[3] = INT_TO_FIXED(((GLint
*) p
)[3]);
1828 params
[2] = INT_TO_FIXED(((GLint
*) p
)[2]);
1831 params
[1] = INT_TO_FIXED(((GLint
*) p
)[1]);
1834 params
[0] = INT_TO_FIXED(((GLint
*) p
)[0]);
1838 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1839 params
[i
] = INT_TO_FIXED(v
.value_int_n
.ints
[i
]);
1843 params
[0] = ((GLint64
*) p
)[0];
1847 params
[0] = BOOLEAN_TO_FIXED(((GLboolean
*) p
)[0]);
1851 m
= *(GLmatrix
**) p
;
1852 for (i
= 0; i
< 16; i
++)
1853 params
[i
] = FLOAT_TO_FIXED(m
->m
[i
]);
1857 m
= *(GLmatrix
**) p
;
1858 for (i
= 0; i
< 16; i
++)
1859 params
[i
] = FLOAT_TO_FIXED(m
->m
[transpose
[i
]]);
1870 shift
= d
->type
- TYPE_BIT_0
;
1871 params
[0] = BOOLEAN_TO_FIXED((*(GLbitfield
*) p
>> shift
) & 1);