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 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
19 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
20 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
22 * Author: Kristian Høgsberg <krh@bitplanet.net>
29 #include "extensions.h"
32 #include "mfeatures.h"
35 #include "texcompress.h"
36 #include "framebuffer.h"
38 /* This is a table driven implemetation of the glGet*v() functions.
39 * The basic idea is that most getters just look up an int somewhere
40 * in struct gl_context and then convert it to a bool or float according to
41 * which of glGetIntegerv() glGetBooleanv() etc is being called.
42 * Instead of generating code to do this, we can just record the enum
43 * value and the offset into struct gl_context in an array of structs. Then
44 * in glGet*(), we lookup the struct for the enum in question, and use
45 * the offset to get the int we need.
47 * Sometimes we need to look up a float, a boolean, a bit in a
48 * bitfield, a matrix or other types instead, so we need to track the
49 * type of the value in struct gl_context. And sometimes the value isn't in
50 * struct gl_context but in the drawbuffer, the array object, current texture
51 * unit, or maybe it's a computed value. So we need to also track
52 * where or how to find the value. Finally, we sometimes need to
53 * check that one of a number of extensions are enabled, the GL
54 * version or flush or call _mesa_update_state(). This is done by
55 * attaching optional extra information to the value description
56 * struct, it's sort of like an array of opcodes that describe extra
59 * Putting all this together we end up with struct value_desc below,
60 * and with a couple of macros to help, the table of struct value_desc
61 * is about as concise as the specification in the old python script.
64 #define FLOAT_TO_BOOLEAN(X) ( (X) ? GL_TRUE : GL_FALSE )
65 #define FLOAT_TO_FIXED(F) ( ((F) * 65536.0f > INT_MAX) ? INT_MAX : \
66 ((F) * 65536.0f < INT_MIN) ? INT_MIN : \
67 (GLint) ((F) * 65536.0f) )
69 #define INT_TO_BOOLEAN(I) ( (I) ? GL_TRUE : GL_FALSE )
70 #define INT_TO_FIXED(I) ( ((I) > SHRT_MAX) ? INT_MAX : \
71 ((I) < SHRT_MIN) ? INT_MIN : \
72 (GLint) ((I) * 65536) )
74 #define INT64_TO_BOOLEAN(I) ( (I) ? GL_TRUE : GL_FALSE )
75 #define INT64_TO_INT(I) ( (GLint)((I > INT_MAX) ? INT_MAX : ((I < INT_MIN) ? INT_MIN : (I))) )
77 #define BOOLEAN_TO_INT(B) ( (GLint) (B) )
78 #define BOOLEAN_TO_INT64(B) ( (GLint64) (B) )
79 #define BOOLEAN_TO_FLOAT(B) ( (B) ? 1.0F : 0.0F )
80 #define BOOLEAN_TO_FIXED(B) ( (GLint) ((B) ? 1 : 0) << 16 )
82 #define ENUM_TO_INT64(E) ( (GLint64) (E) )
83 #define ENUM_TO_FIXED(E) (E)
118 enum value_location
{
134 EXTRA_NEW_FRAG_CLAMP
,
135 EXTRA_VALID_DRAW_BUFFER
,
136 EXTRA_VALID_TEXTURE_UNIT
,
137 EXTRA_VALID_CLIP_DISTANCE
,
142 #define NO_EXTRA NULL
147 GLubyte location
; /**< enum value_location */
148 GLubyte type
; /**< enum value_type */
155 GLfloat value_float_4
[4];
156 GLmatrix
*value_matrix
;
158 GLint value_int_4
[4];
162 /* Sigh, see GL_COMPRESSED_TEXTURE_FORMATS_ARB handling */
166 GLboolean value_bool
;
169 #define BUFFER_FIELD(field, type) \
170 LOC_BUFFER, type, offsetof(struct gl_framebuffer, field)
171 #define CONTEXT_FIELD(field, type) \
172 LOC_CONTEXT, type, offsetof(struct gl_context, field)
173 #define ARRAY_FIELD(field, type) \
174 LOC_ARRAY, type, offsetof(struct gl_array_object, field)
175 #undef CONST /* already defined through windows.h */
176 #define CONST(value) \
177 LOC_CONTEXT, TYPE_CONST, value
179 #define BUFFER_INT(field) BUFFER_FIELD(field, TYPE_INT)
180 #define BUFFER_ENUM(field) BUFFER_FIELD(field, TYPE_ENUM)
181 #define BUFFER_BOOL(field) BUFFER_FIELD(field, TYPE_BOOLEAN)
183 #define CONTEXT_INT(field) CONTEXT_FIELD(field, TYPE_INT)
184 #define CONTEXT_INT2(field) CONTEXT_FIELD(field, TYPE_INT_2)
185 #define CONTEXT_INT64(field) CONTEXT_FIELD(field, TYPE_INT64)
186 #define CONTEXT_ENUM(field) CONTEXT_FIELD(field, TYPE_ENUM)
187 #define CONTEXT_ENUM2(field) CONTEXT_FIELD(field, TYPE_ENUM_2)
188 #define CONTEXT_BOOL(field) CONTEXT_FIELD(field, TYPE_BOOLEAN)
189 #define CONTEXT_BIT0(field) CONTEXT_FIELD(field, TYPE_BIT_0)
190 #define CONTEXT_BIT1(field) CONTEXT_FIELD(field, TYPE_BIT_1)
191 #define CONTEXT_BIT2(field) CONTEXT_FIELD(field, TYPE_BIT_2)
192 #define CONTEXT_BIT3(field) CONTEXT_FIELD(field, TYPE_BIT_3)
193 #define CONTEXT_BIT4(field) CONTEXT_FIELD(field, TYPE_BIT_4)
194 #define CONTEXT_BIT5(field) CONTEXT_FIELD(field, TYPE_BIT_5)
195 #define CONTEXT_BIT6(field) CONTEXT_FIELD(field, TYPE_BIT_6)
196 #define CONTEXT_BIT7(field) CONTEXT_FIELD(field, TYPE_BIT_7)
197 #define CONTEXT_FLOAT(field) CONTEXT_FIELD(field, TYPE_FLOAT)
198 #define CONTEXT_FLOAT2(field) CONTEXT_FIELD(field, TYPE_FLOAT_2)
199 #define CONTEXT_FLOAT3(field) CONTEXT_FIELD(field, TYPE_FLOAT_3)
200 #define CONTEXT_FLOAT4(field) CONTEXT_FIELD(field, TYPE_FLOAT_4)
201 #define CONTEXT_MATRIX(field) CONTEXT_FIELD(field, TYPE_MATRIX)
202 #define CONTEXT_MATRIX_T(field) CONTEXT_FIELD(field, TYPE_MATRIX_T)
204 #define ARRAY_INT(field) ARRAY_FIELD(field, TYPE_INT)
205 #define ARRAY_ENUM(field) ARRAY_FIELD(field, TYPE_ENUM)
206 #define ARRAY_BOOL(field) ARRAY_FIELD(field, TYPE_BOOLEAN)
209 offsetof(struct gl_extensions, f)
211 #define EXTRA_EXT(e) \
212 static const int extra_##e[] = { \
216 #define EXTRA_EXT2(e1, e2) \
217 static const int extra_##e1##_##e2[] = { \
218 EXT(e1), EXT(e2), EXTRA_END \
221 /* The 'extra' mechanism is a way to specify extra checks (such as
222 * extensions or specific gl versions) or actions (flush current, new
223 * buffers) that we need to do before looking up an enum. We need to
224 * declare them all up front so we can refer to them in the value_desc
227 static const int extra_new_buffers
[] = {
232 static const int extra_new_frag_clamp
[] = {
233 EXTRA_NEW_FRAG_CLAMP
,
237 static const int extra_valid_draw_buffer
[] = {
238 EXTRA_VALID_DRAW_BUFFER
,
242 static const int extra_valid_texture_unit
[] = {
243 EXTRA_VALID_TEXTURE_UNIT
,
247 static const int extra_valid_clip_distance
[] = {
248 EXTRA_VALID_CLIP_DISTANCE
,
252 static const int extra_flush_current_valid_texture_unit
[] = {
254 EXTRA_VALID_TEXTURE_UNIT
,
258 static const int extra_flush_current
[] = {
263 static const int extra_EXT_secondary_color_flush_current
[] = {
264 EXT(EXT_secondary_color
),
269 static const int extra_EXT_fog_coord_flush_current
[] = {
275 static const int extra_EXT_texture_integer
[] = {
276 EXT(EXT_texture_integer
),
280 static const int extra_GLSL_130
[] = {
285 static const int extra_texture_buffer_object
[] = {
287 EXT(ARB_texture_buffer_object
),
291 static const int extra_ARB_uniform_buffer_object_and_geometry_shader
[] = {
292 EXT(ARB_uniform_buffer_object
),
293 EXT(ARB_geometry_shader4
),
298 EXTRA_EXT(ARB_ES2_compatibility
);
299 EXTRA_EXT(ARB_texture_cube_map
);
300 EXTRA_EXT(MESA_texture_array
);
301 EXTRA_EXT2(EXT_secondary_color
, ARB_vertex_program
);
302 EXTRA_EXT(EXT_secondary_color
);
303 EXTRA_EXT(EXT_fog_coord
);
304 EXTRA_EXT(NV_fog_distance
);
305 EXTRA_EXT(EXT_texture_filter_anisotropic
);
306 EXTRA_EXT(IBM_rasterpos_clip
);
307 EXTRA_EXT(NV_point_sprite
);
308 EXTRA_EXT(NV_texture_rectangle
);
309 EXTRA_EXT(EXT_stencil_two_side
);
310 EXTRA_EXT(NV_light_max_exponent
);
311 EXTRA_EXT(EXT_depth_bounds_test
);
312 EXTRA_EXT(ARB_depth_clamp
);
313 EXTRA_EXT(ATI_fragment_shader
);
314 EXTRA_EXT(EXT_framebuffer_blit
);
315 EXTRA_EXT(ARB_shader_objects
);
316 EXTRA_EXT(EXT_provoking_vertex
);
317 EXTRA_EXT(ARB_fragment_shader
);
318 EXTRA_EXT(ARB_fragment_program
);
319 EXTRA_EXT2(ARB_framebuffer_object
, EXT_framebuffer_multisample
);
320 EXTRA_EXT(EXT_framebuffer_object
);
321 EXTRA_EXT(ARB_seamless_cube_map
);
322 EXTRA_EXT(EXT_compiled_vertex_array
);
324 EXTRA_EXT(ARB_vertex_shader
);
325 EXTRA_EXT(EXT_transform_feedback
);
326 EXTRA_EXT(ARB_transform_feedback2
);
327 EXTRA_EXT(ARB_transform_feedback3
);
328 EXTRA_EXT(EXT_pixel_buffer_object
);
329 EXTRA_EXT(ARB_vertex_program
);
330 EXTRA_EXT2(NV_point_sprite
, ARB_point_sprite
);
331 EXTRA_EXT2(ARB_vertex_program
, ARB_fragment_program
);
332 EXTRA_EXT(ARB_geometry_shader4
);
333 EXTRA_EXT(ARB_color_buffer_float
);
334 EXTRA_EXT(ARB_copy_buffer
);
335 EXTRA_EXT(EXT_framebuffer_sRGB
);
336 EXTRA_EXT(ARB_texture_buffer_object
);
337 EXTRA_EXT(OES_EGL_image_external
);
338 EXTRA_EXT(ARB_blend_func_extended
);
339 EXTRA_EXT(ARB_uniform_buffer_object
);
340 EXTRA_EXT(ARB_timer_query
);
341 EXTRA_EXT(ARB_map_buffer_alignment
);
344 extra_NV_primitive_restart
[] = {
345 EXT(NV_primitive_restart
),
349 static const int extra_version_30
[] = { EXTRA_VERSION_30
, EXTRA_END
};
350 static const int extra_version_31
[] = { EXTRA_VERSION_31
, EXTRA_END
};
351 static const int extra_version_32
[] = { EXTRA_VERSION_32
, EXTRA_END
};
354 extra_ARB_vertex_program_api_es2
[] = {
355 EXT(ARB_vertex_program
),
360 /* The ReadBuffer get token is valid under either full GL or under
361 * GLES2 if the NV_read_buffer extension is available. */
363 extra_NV_read_buffer_api_gl
[] = {
369 /* This is the big table describing all the enums we accept in
370 * glGet*v(). The table is partitioned into six parts: enums
371 * understood by all GL APIs (OpenGL, GLES and GLES2), enums shared
372 * between OpenGL and GLES, enums exclusive to GLES, etc for the
373 * remaining combinations. To look up the enums valid in a given API
374 * we will use a hash table specific to that API. These tables are in
375 * turn generated at build time and included through get_hash.h.
376 * The different sections are guarded by #if FEATURE_GL etc to make
377 * sure we only compile in the enums we may need. */
379 #include "get_hash.h"
381 /* All we need now is a way to look up the value struct from the enum.
382 * The code generated by gcc for the old generated big switch
383 * statement is a big, balanced, open coded if/else tree, essentially
384 * an unrolled binary search. It would be natural to sort the new
385 * enum table and use bsearch(), but we will use a read-only hash
386 * table instead. bsearch() has a nice guaranteed worst case
387 * performance, but we're also guaranteed to hit that worst case
388 * (log2(n) iterations) for about half the enums. Instead, using an
389 * open addressing hash table, we can find the enum on the first try
390 * for 80% of the enums, 1 collision for 10% and never more than 5
391 * collisions for any enum (typical numbers). And the code is very
392 * simple, even though it feels a little magic. */
396 print_table_stats(int api
)
398 int i
, j
, collisions
[11], count
, hash
, mask
;
399 const struct value_desc
*d
;
400 const char *api_names
[] = {
402 [API_OPENGL_CORE
] = "GL_CORE",
403 [API_OPENGLES
] = "GLES",
404 [API_OPENGLES2
] = "GLES2",
406 const char *api_name
;
408 api_name
= api
< Elements(api_names
) ? api_names
[api
] : "N/A";
410 mask
= Elements(table(api
)) - 1;
411 memset(collisions
, 0, sizeof collisions
);
413 for (i
= 0; i
< Elements(table(api
)); i
++) {
417 d
= &values
[table(api
)[i
]];
418 hash
= (d
->pname
* prime_factor
);
421 if (values
[table(api
)[hash
& mask
]].pname
== d
->pname
)
433 printf("number of enums for %s: %d (total %ld)\n",
434 api_name
, count
, Elements(values
));
435 for (i
= 0; i
< Elements(collisions
) - 1; i
++)
436 if (collisions
[i
] > 0)
437 printf(" %d enums with %d %scollisions\n",
438 collisions
[i
], i
, i
== 10 ? "or more " : "");
443 * Initialize the enum hash for a given API
445 * This is called from one_time_init() to insert the enum values that
446 * are valid for the API in question into the enum hash table.
448 * \param the current context, for determining the API in question
450 void _mesa_init_get_hash(struct gl_context
*ctx
)
458 * Handle irregular enums
460 * Some values don't conform to the "well-known type at context
461 * pointer + offset" pattern, so we have this function to catch all
462 * the corner cases. Typically, it's a computed value or a one-off
463 * pointer to a custom struct or something.
465 * In this case we can't return a pointer to the value, so we'll have
466 * to use the temporary variable 'v' declared back in the calling
467 * glGet*v() function to store the result.
469 * \param ctx the current context
470 * \param d the struct value_desc that describes the enum
471 * \param v pointer to the tmp declared in the calling glGet*v() function
474 find_custom_value(struct gl_context
*ctx
, const struct value_desc
*d
, union value
*v
)
476 struct gl_buffer_object
**buffer_obj
;
477 struct gl_client_array
*array
;
481 case GL_MAJOR_VERSION
:
482 v
->value_int
= ctx
->Version
/ 10;
484 case GL_MINOR_VERSION
:
485 v
->value_int
= ctx
->Version
% 10;
491 case GL_TEXTURE_1D_ARRAY_EXT
:
492 case GL_TEXTURE_2D_ARRAY_EXT
:
493 case GL_TEXTURE_CUBE_MAP_ARB
:
494 case GL_TEXTURE_RECTANGLE_NV
:
495 case GL_TEXTURE_EXTERNAL_OES
:
496 v
->value_bool
= _mesa_IsEnabled(d
->pname
);
499 case GL_LINE_STIPPLE_PATTERN
:
500 /* This is the only GLushort, special case it here by promoting
501 * to an int rather than introducing a new type. */
502 v
->value_int
= ctx
->Line
.StipplePattern
;
505 case GL_CURRENT_RASTER_TEXTURE_COORDS
:
506 unit
= ctx
->Texture
.CurrentUnit
;
507 v
->value_float_4
[0] = ctx
->Current
.RasterTexCoords
[unit
][0];
508 v
->value_float_4
[1] = ctx
->Current
.RasterTexCoords
[unit
][1];
509 v
->value_float_4
[2] = ctx
->Current
.RasterTexCoords
[unit
][2];
510 v
->value_float_4
[3] = ctx
->Current
.RasterTexCoords
[unit
][3];
513 case GL_CURRENT_TEXTURE_COORDS
:
514 unit
= ctx
->Texture
.CurrentUnit
;
515 v
->value_float_4
[0] = ctx
->Current
.Attrib
[VERT_ATTRIB_TEX0
+ unit
][0];
516 v
->value_float_4
[1] = ctx
->Current
.Attrib
[VERT_ATTRIB_TEX0
+ unit
][1];
517 v
->value_float_4
[2] = ctx
->Current
.Attrib
[VERT_ATTRIB_TEX0
+ unit
][2];
518 v
->value_float_4
[3] = ctx
->Current
.Attrib
[VERT_ATTRIB_TEX0
+ unit
][3];
521 case GL_COLOR_WRITEMASK
:
522 v
->value_int_4
[0] = ctx
->Color
.ColorMask
[0][RCOMP
] ? 1 : 0;
523 v
->value_int_4
[1] = ctx
->Color
.ColorMask
[0][GCOMP
] ? 1 : 0;
524 v
->value_int_4
[2] = ctx
->Color
.ColorMask
[0][BCOMP
] ? 1 : 0;
525 v
->value_int_4
[3] = ctx
->Color
.ColorMask
[0][ACOMP
] ? 1 : 0;
529 v
->value_bool
= ctx
->Current
.Attrib
[VERT_ATTRIB_EDGEFLAG
][0] == 1.0;
533 v
->value_enum
= ctx
->ReadBuffer
->ColorReadBuffer
;
536 case GL_MAP2_GRID_DOMAIN
:
537 v
->value_float_4
[0] = ctx
->Eval
.MapGrid2u1
;
538 v
->value_float_4
[1] = ctx
->Eval
.MapGrid2u2
;
539 v
->value_float_4
[2] = ctx
->Eval
.MapGrid2v1
;
540 v
->value_float_4
[3] = ctx
->Eval
.MapGrid2v2
;
543 case GL_TEXTURE_STACK_DEPTH
:
544 unit
= ctx
->Texture
.CurrentUnit
;
545 v
->value_int
= ctx
->TextureMatrixStack
[unit
].Depth
+ 1;
547 case GL_TEXTURE_MATRIX
:
548 unit
= ctx
->Texture
.CurrentUnit
;
549 v
->value_matrix
= ctx
->TextureMatrixStack
[unit
].Top
;
552 case GL_TEXTURE_COORD_ARRAY
:
553 case GL_TEXTURE_COORD_ARRAY_SIZE
:
554 case GL_TEXTURE_COORD_ARRAY_TYPE
:
555 case GL_TEXTURE_COORD_ARRAY_STRIDE
:
556 array
= &ctx
->Array
.ArrayObj
->VertexAttrib
[VERT_ATTRIB_TEX(ctx
->Array
.ActiveTexture
)];
557 v
->value_int
= *(GLuint
*) ((char *) array
+ d
->offset
);
560 case GL_ACTIVE_TEXTURE_ARB
:
561 v
->value_int
= GL_TEXTURE0_ARB
+ ctx
->Texture
.CurrentUnit
;
563 case GL_CLIENT_ACTIVE_TEXTURE_ARB
:
564 v
->value_int
= GL_TEXTURE0_ARB
+ ctx
->Array
.ActiveTexture
;
567 case GL_MODELVIEW_STACK_DEPTH
:
568 case GL_PROJECTION_STACK_DEPTH
:
569 v
->value_int
= *(GLint
*) ((char *) ctx
+ d
->offset
) + 1;
572 case GL_MAX_TEXTURE_SIZE
:
573 case GL_MAX_3D_TEXTURE_SIZE
:
574 case GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB
:
575 p
= (GLuint
*) ((char *) ctx
+ d
->offset
);
576 v
->value_int
= 1 << (*p
- 1);
580 v
->value_int_4
[0] = ctx
->Scissor
.X
;
581 v
->value_int_4
[1] = ctx
->Scissor
.Y
;
582 v
->value_int_4
[2] = ctx
->Scissor
.Width
;
583 v
->value_int_4
[3] = ctx
->Scissor
.Height
;
588 ctx
->ListState
.CurrentList
? ctx
->ListState
.CurrentList
->Name
: 0;
591 if (!ctx
->CompileFlag
)
593 else if (ctx
->ExecuteFlag
)
594 v
->value_enum
= GL_COMPILE_AND_EXECUTE
;
596 v
->value_enum
= GL_COMPILE
;
600 v
->value_int_4
[0] = ctx
->Viewport
.X
;
601 v
->value_int_4
[1] = ctx
->Viewport
.Y
;
602 v
->value_int_4
[2] = ctx
->Viewport
.Width
;
603 v
->value_int_4
[3] = ctx
->Viewport
.Height
;
606 case GL_ACTIVE_STENCIL_FACE_EXT
:
607 v
->value_enum
= ctx
->Stencil
.ActiveFace
? GL_BACK
: GL_FRONT
;
610 case GL_STENCIL_FAIL
:
611 v
->value_enum
= ctx
->Stencil
.FailFunc
[ctx
->Stencil
.ActiveFace
];
613 case GL_STENCIL_FUNC
:
614 v
->value_enum
= ctx
->Stencil
.Function
[ctx
->Stencil
.ActiveFace
];
616 case GL_STENCIL_PASS_DEPTH_FAIL
:
617 v
->value_enum
= ctx
->Stencil
.ZFailFunc
[ctx
->Stencil
.ActiveFace
];
619 case GL_STENCIL_PASS_DEPTH_PASS
:
620 v
->value_enum
= ctx
->Stencil
.ZPassFunc
[ctx
->Stencil
.ActiveFace
];
623 v
->value_int
= ctx
->Stencil
.Ref
[ctx
->Stencil
.ActiveFace
];
625 case GL_STENCIL_VALUE_MASK
:
626 v
->value_int
= ctx
->Stencil
.ValueMask
[ctx
->Stencil
.ActiveFace
];
628 case GL_STENCIL_WRITEMASK
:
629 v
->value_int
= ctx
->Stencil
.WriteMask
[ctx
->Stencil
.ActiveFace
];
632 case GL_NUM_EXTENSIONS
:
633 v
->value_int
= _mesa_get_extension_count(ctx
);
636 case GL_IMPLEMENTATION_COLOR_READ_TYPE_OES
:
637 v
->value_int
= _mesa_get_color_read_type(ctx
);
639 case GL_IMPLEMENTATION_COLOR_READ_FORMAT_OES
:
640 v
->value_int
= _mesa_get_color_read_format(ctx
);
643 case GL_CURRENT_MATRIX_STACK_DEPTH_ARB
:
644 v
->value_int
= ctx
->CurrentStack
->Depth
+ 1;
646 case GL_CURRENT_MATRIX_ARB
:
647 case GL_TRANSPOSE_CURRENT_MATRIX_ARB
:
648 v
->value_matrix
= ctx
->CurrentStack
->Top
;
651 case GL_NUM_COMPRESSED_TEXTURE_FORMATS_ARB
:
652 v
->value_int
= _mesa_get_compressed_formats(ctx
, NULL
);
654 case GL_COMPRESSED_TEXTURE_FORMATS_ARB
:
656 _mesa_get_compressed_formats(ctx
, v
->value_int_n
.ints
);
657 ASSERT(v
->value_int_n
.n
<= 100);
660 case GL_MAX_VARYING_FLOATS_ARB
:
661 v
->value_int
= ctx
->Const
.MaxVarying
* 4;
664 /* Various object names */
666 case GL_TEXTURE_BINDING_1D
:
667 case GL_TEXTURE_BINDING_2D
:
668 case GL_TEXTURE_BINDING_3D
:
669 case GL_TEXTURE_BINDING_1D_ARRAY_EXT
:
670 case GL_TEXTURE_BINDING_2D_ARRAY_EXT
:
671 case GL_TEXTURE_BINDING_CUBE_MAP_ARB
:
672 case GL_TEXTURE_BINDING_RECTANGLE_NV
:
673 case GL_TEXTURE_BINDING_EXTERNAL_OES
:
674 unit
= ctx
->Texture
.CurrentUnit
;
676 ctx
->Texture
.Unit
[unit
].CurrentTex
[d
->offset
]->Name
;
679 /* GL_ARB_vertex_buffer_object */
680 case GL_VERTEX_ARRAY_BUFFER_BINDING_ARB
:
681 case GL_NORMAL_ARRAY_BUFFER_BINDING_ARB
:
682 case GL_COLOR_ARRAY_BUFFER_BINDING_ARB
:
683 case GL_INDEX_ARRAY_BUFFER_BINDING_ARB
:
684 case GL_EDGE_FLAG_ARRAY_BUFFER_BINDING_ARB
:
685 case GL_SECONDARY_COLOR_ARRAY_BUFFER_BINDING_ARB
:
686 case GL_FOG_COORDINATE_ARRAY_BUFFER_BINDING_ARB
:
687 buffer_obj
= (struct gl_buffer_object
**)
688 ((char *) ctx
->Array
.ArrayObj
+ d
->offset
);
689 v
->value_int
= (*buffer_obj
)->Name
;
691 case GL_ARRAY_BUFFER_BINDING_ARB
:
692 v
->value_int
= ctx
->Array
.ArrayBufferObj
->Name
;
694 case GL_TEXTURE_COORD_ARRAY_BUFFER_BINDING_ARB
:
696 ctx
->Array
.ArrayObj
->VertexAttrib
[VERT_ATTRIB_TEX(ctx
->Array
.ActiveTexture
)].BufferObj
->Name
;
698 case GL_ELEMENT_ARRAY_BUFFER_BINDING_ARB
:
699 v
->value_int
= ctx
->Array
.ArrayObj
->ElementArrayBufferObj
->Name
;
702 /* ARB_copy_buffer */
703 case GL_COPY_READ_BUFFER
:
704 v
->value_int
= ctx
->CopyReadBuffer
->Name
;
706 case GL_COPY_WRITE_BUFFER
:
707 v
->value_int
= ctx
->CopyWriteBuffer
->Name
;
710 case GL_PIXEL_PACK_BUFFER_BINDING_EXT
:
711 v
->value_int
= ctx
->Pack
.BufferObj
->Name
;
713 case GL_PIXEL_UNPACK_BUFFER_BINDING_EXT
:
714 v
->value_int
= ctx
->Unpack
.BufferObj
->Name
;
716 case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING
:
717 v
->value_int
= ctx
->TransformFeedback
.CurrentBuffer
->Name
;
719 case GL_TRANSFORM_FEEDBACK_BUFFER_PAUSED
:
720 v
->value_int
= ctx
->TransformFeedback
.CurrentObject
->Paused
;
722 case GL_TRANSFORM_FEEDBACK_BUFFER_ACTIVE
:
723 v
->value_int
= ctx
->TransformFeedback
.CurrentObject
->Active
;
725 case GL_TRANSFORM_FEEDBACK_BINDING
:
726 v
->value_int
= ctx
->TransformFeedback
.CurrentObject
->Name
;
728 case GL_CURRENT_PROGRAM
:
730 ctx
->Shader
.ActiveProgram
? ctx
->Shader
.ActiveProgram
->Name
: 0;
732 case GL_READ_FRAMEBUFFER_BINDING_EXT
:
733 v
->value_int
= ctx
->ReadBuffer
->Name
;
735 case GL_RENDERBUFFER_BINDING_EXT
:
737 ctx
->CurrentRenderbuffer
? ctx
->CurrentRenderbuffer
->Name
: 0;
739 case GL_POINT_SIZE_ARRAY_BUFFER_BINDING_OES
:
740 v
->value_int
= ctx
->Array
.ArrayObj
->VertexAttrib
[VERT_ATTRIB_POINT_SIZE
].BufferObj
->Name
;
744 if(ctx
->Color
._ClampFragmentColor
)
745 COPY_4FV(v
->value_float_4
, ctx
->Fog
.Color
);
747 COPY_4FV(v
->value_float_4
, ctx
->Fog
.ColorUnclamped
);
749 case GL_COLOR_CLEAR_VALUE
:
750 if(ctx
->Color
._ClampFragmentColor
) {
751 v
->value_float_4
[0] = CLAMP(ctx
->Color
.ClearColor
.f
[0], 0.0F
, 1.0F
);
752 v
->value_float_4
[1] = CLAMP(ctx
->Color
.ClearColor
.f
[1], 0.0F
, 1.0F
);
753 v
->value_float_4
[2] = CLAMP(ctx
->Color
.ClearColor
.f
[2], 0.0F
, 1.0F
);
754 v
->value_float_4
[3] = CLAMP(ctx
->Color
.ClearColor
.f
[3], 0.0F
, 1.0F
);
756 COPY_4FV(v
->value_float_4
, ctx
->Color
.ClearColor
.f
);
758 case GL_BLEND_COLOR_EXT
:
759 if(ctx
->Color
._ClampFragmentColor
)
760 COPY_4FV(v
->value_float_4
, ctx
->Color
.BlendColor
);
762 COPY_4FV(v
->value_float_4
, ctx
->Color
.BlendColorUnclamped
);
764 case GL_ALPHA_TEST_REF
:
765 if(ctx
->Color
._ClampFragmentColor
)
766 v
->value_float
= ctx
->Color
.AlphaRef
;
768 v
->value_float
= ctx
->Color
.AlphaRefUnclamped
;
770 case GL_MAX_VERTEX_UNIFORM_VECTORS
:
771 v
->value_int
= ctx
->Const
.VertexProgram
.MaxUniformComponents
/ 4;
774 case GL_MAX_FRAGMENT_UNIFORM_VECTORS
:
775 v
->value_int
= ctx
->Const
.FragmentProgram
.MaxUniformComponents
/ 4;
778 /* GL_ARB_texture_buffer_object */
779 case GL_TEXTURE_BUFFER_ARB
:
780 v
->value_int
= ctx
->Texture
.BufferObject
->Name
;
782 case GL_TEXTURE_BINDING_BUFFER_ARB
:
783 unit
= ctx
->Texture
.CurrentUnit
;
785 ctx
->Texture
.Unit
[unit
].CurrentTex
[TEXTURE_BUFFER_INDEX
]->Name
;
787 case GL_TEXTURE_BUFFER_DATA_STORE_BINDING_ARB
:
789 struct gl_buffer_object
*buf
=
790 ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
]
791 .CurrentTex
[TEXTURE_BUFFER_INDEX
]->BufferObject
;
792 v
->value_int
= buf
? buf
->Name
: 0;
795 case GL_TEXTURE_BUFFER_FORMAT_ARB
:
796 v
->value_int
= ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
]
797 .CurrentTex
[TEXTURE_BUFFER_INDEX
]->BufferObjectFormat
;
800 /* GL_ARB_sampler_objects */
801 case GL_SAMPLER_BINDING
:
803 struct gl_sampler_object
*samp
=
804 ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
].Sampler
;
805 v
->value_int
= samp
? samp
->Name
: 0;
808 /* GL_ARB_uniform_buffer_object */
809 case GL_UNIFORM_BUFFER_BINDING
:
810 v
->value_int
= ctx
->UniformBuffer
->Name
;
812 /* GL_ARB_timer_query */
814 if (ctx
->Driver
.GetTimestamp
) {
815 v
->value_int64
= ctx
->Driver
.GetTimestamp(ctx
);
818 _mesa_problem(ctx
, "driver doesn't implement GetTimestamp");
825 * Check extra constraints on a struct value_desc descriptor
827 * If a struct value_desc has a non-NULL extra pointer, it means that
828 * there are a number of extra constraints to check or actions to
829 * perform. The extras is just an integer array where each integer
830 * encode different constraints or actions.
832 * \param ctx current context
833 * \param func name of calling glGet*v() function for error reporting
834 * \param d the struct value_desc that has the extra constraints
836 * \return GL_FALSE if one of the constraints was not satisfied,
840 check_extra(struct gl_context
*ctx
, const char *func
, const struct value_desc
*d
)
842 const GLuint version
= ctx
->Version
;
848 for (e
= d
->extra
; *e
!= EXTRA_END
; e
++)
850 case EXTRA_VERSION_30
:
856 case EXTRA_VERSION_31
:
862 case EXTRA_VERSION_32
:
868 case EXTRA_NEW_FRAG_CLAMP
:
869 if (ctx
->NewState
& (_NEW_BUFFERS
| _NEW_FRAG_CLAMP
))
870 _mesa_update_state(ctx
);
873 if (ctx
->API
== API_OPENGLES2
) {
879 if (_mesa_is_desktop_gl(ctx
)) {
884 case EXTRA_NEW_BUFFERS
:
885 if (ctx
->NewState
& _NEW_BUFFERS
)
886 _mesa_update_state(ctx
);
888 case EXTRA_FLUSH_CURRENT
:
889 FLUSH_CURRENT(ctx
, 0);
891 case EXTRA_VALID_DRAW_BUFFER
:
892 if (d
->pname
- GL_DRAW_BUFFER0_ARB
>= ctx
->Const
.MaxDrawBuffers
) {
893 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(draw buffer %u)",
894 func
, d
->pname
- GL_DRAW_BUFFER0_ARB
);
898 case EXTRA_VALID_TEXTURE_UNIT
:
899 if (ctx
->Texture
.CurrentUnit
>= ctx
->Const
.MaxTextureCoordUnits
) {
900 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(texture %u)",
901 func
, ctx
->Texture
.CurrentUnit
);
905 case EXTRA_VALID_CLIP_DISTANCE
:
906 if (d
->pname
- GL_CLIP_DISTANCE0
>= ctx
->Const
.MaxClipPlanes
) {
907 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(clip distance %u)",
908 func
, d
->pname
- GL_CLIP_DISTANCE0
);
913 if (ctx
->Const
.GLSLVersion
>= 130) {
920 default: /* *e is a offset into the extension struct */
922 if (*(GLboolean
*) ((char *) &ctx
->Extensions
+ *e
))
927 if (total
> 0 && enabled
== 0) {
928 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=%s)", func
,
929 _mesa_lookup_enum_by_nr(d
->pname
));
936 static const struct value_desc error_value
=
937 { 0, 0, TYPE_INVALID
, NO_OFFSET
, NO_EXTRA
};
940 * Find the struct value_desc corresponding to the enum 'pname'.
942 * We hash the enum value to get an index into the 'table' array,
943 * which holds the index in the 'values' array of struct value_desc.
944 * Once we've found the entry, we do the extra checks, if any, then
945 * look up the value and return a pointer to it.
947 * If the value has to be computed (for example, it's the result of a
948 * function call or we need to add 1 to it), we use the tmp 'v' to
951 * \param func name of glGet*v() func for error reporting
952 * \param pname the enum value we're looking up
953 * \param p is were we return the pointer to the value
954 * \param v a tmp union value variable in the calling glGet*v() function
956 * \return the struct value_desc corresponding to the enum or a struct
957 * value_desc of TYPE_INVALID if not found. This lets the calling
958 * glGet*v() function jump right into a switch statement and
959 * handle errors there instead of having to check for NULL.
961 static const struct value_desc
*
962 find_value(const char *func
, GLenum pname
, void **p
, union value
*v
)
964 GET_CURRENT_CONTEXT(ctx
);
965 struct gl_texture_unit
*unit
;
967 const struct value_desc
*d
;
971 mask
= Elements(table(api
)) - 1;
972 hash
= (pname
* prime_factor
);
974 int idx
= table(api
)[hash
& mask
];
976 /* If the enum isn't valid, the hash walk ends with index 0,
977 * pointing to the first entry of values[] which doesn't hold
979 if (unlikely(idx
== 0)) {
980 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=%s)", func
,
981 _mesa_lookup_enum_by_nr(pname
));
986 if (likely(d
->pname
== pname
))
992 if (unlikely(d
->extra
&& !check_extra(ctx
, func
, d
)))
995 switch (d
->location
) {
997 *p
= ((char *) ctx
->DrawBuffer
+ d
->offset
);
1000 *p
= ((char *) ctx
+ d
->offset
);
1003 *p
= ((char *) ctx
->Array
.ArrayObj
+ d
->offset
);
1006 unit
= &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1007 *p
= ((char *) unit
+ d
->offset
);
1010 find_custom_value(ctx
, d
, v
);
1018 /* silence warning */
1019 return &error_value
;
1022 static const int transpose
[] = {
1030 _mesa_GetBooleanv(GLenum pname
, GLboolean
*params
)
1032 const struct value_desc
*d
;
1037 GET_CURRENT_CONTEXT(ctx
);
1039 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1041 d
= find_value("glGetBooleanv", pname
, &p
, &v
);
1046 params
[0] = INT_TO_BOOLEAN(d
->offset
);
1051 params
[3] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[3]);
1054 params
[2] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[2]);
1057 params
[1] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[1]);
1060 params
[0] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[0]);
1064 params
[0] = FLOAT_TO_BOOLEAN(((GLdouble
*) p
)[0]);
1068 params
[3] = INT_TO_BOOLEAN(((GLint
*) p
)[3]);
1070 params
[2] = INT_TO_BOOLEAN(((GLint
*) p
)[2]);
1073 params
[1] = INT_TO_BOOLEAN(((GLint
*) p
)[1]);
1076 params
[0] = INT_TO_BOOLEAN(((GLint
*) p
)[0]);
1080 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1081 params
[i
] = INT_TO_BOOLEAN(v
.value_int_n
.ints
[i
]);
1085 params
[0] = INT64_TO_BOOLEAN(((GLint64
*) p
)[0]);
1089 params
[0] = ((GLboolean
*) p
)[0];
1093 m
= *(GLmatrix
**) p
;
1094 for (i
= 0; i
< 16; i
++)
1095 params
[i
] = FLOAT_TO_BOOLEAN(m
->m
[i
]);
1099 m
= *(GLmatrix
**) p
;
1100 for (i
= 0; i
< 16; i
++)
1101 params
[i
] = FLOAT_TO_BOOLEAN(m
->m
[transpose
[i
]]);
1112 shift
= d
->type
- TYPE_BIT_0
;
1113 params
[0] = (*(GLbitfield
*) p
>> shift
) & 1;
1119 _mesa_GetFloatv(GLenum pname
, GLfloat
*params
)
1121 const struct value_desc
*d
;
1126 GET_CURRENT_CONTEXT(ctx
);
1128 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1130 d
= find_value("glGetFloatv", pname
, &p
, &v
);
1135 params
[0] = (GLfloat
) d
->offset
;
1140 params
[3] = ((GLfloat
*) p
)[3];
1143 params
[2] = ((GLfloat
*) p
)[2];
1146 params
[1] = ((GLfloat
*) p
)[1];
1149 params
[0] = ((GLfloat
*) p
)[0];
1153 params
[0] = (GLfloat
) (((GLdouble
*) p
)[0]);
1157 params
[3] = (GLfloat
) (((GLint
*) p
)[3]);
1159 params
[2] = (GLfloat
) (((GLint
*) p
)[2]);
1162 params
[1] = (GLfloat
) (((GLint
*) p
)[1]);
1165 params
[0] = (GLfloat
) (((GLint
*) p
)[0]);
1169 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1170 params
[i
] = INT_TO_FLOAT(v
.value_int_n
.ints
[i
]);
1174 params
[0] = (GLfloat
) (((GLint64
*) p
)[0]);
1178 params
[0] = BOOLEAN_TO_FLOAT(*(GLboolean
*) p
);
1182 m
= *(GLmatrix
**) p
;
1183 for (i
= 0; i
< 16; i
++)
1184 params
[i
] = m
->m
[i
];
1188 m
= *(GLmatrix
**) p
;
1189 for (i
= 0; i
< 16; i
++)
1190 params
[i
] = m
->m
[transpose
[i
]];
1201 shift
= d
->type
- TYPE_BIT_0
;
1202 params
[0] = BOOLEAN_TO_FLOAT((*(GLbitfield
*) p
>> shift
) & 1);
1208 _mesa_GetIntegerv(GLenum pname
, GLint
*params
)
1210 const struct value_desc
*d
;
1215 GET_CURRENT_CONTEXT(ctx
);
1217 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1219 d
= find_value("glGetIntegerv", pname
, &p
, &v
);
1224 params
[0] = d
->offset
;
1228 params
[3] = IROUND(((GLfloat
*) p
)[3]);
1230 params
[2] = IROUND(((GLfloat
*) p
)[2]);
1232 params
[1] = IROUND(((GLfloat
*) p
)[1]);
1234 params
[0] = IROUND(((GLfloat
*) p
)[0]);
1238 params
[3] = FLOAT_TO_INT(((GLfloat
*) p
)[3]);
1240 params
[2] = FLOAT_TO_INT(((GLfloat
*) p
)[2]);
1242 params
[1] = FLOAT_TO_INT(((GLfloat
*) p
)[1]);
1244 params
[0] = FLOAT_TO_INT(((GLfloat
*) p
)[0]);
1248 params
[0] = FLOAT_TO_INT(((GLdouble
*) p
)[0]);
1252 params
[3] = ((GLint
*) p
)[3];
1254 params
[2] = ((GLint
*) p
)[2];
1257 params
[1] = ((GLint
*) p
)[1];
1260 params
[0] = ((GLint
*) p
)[0];
1264 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1265 params
[i
] = v
.value_int_n
.ints
[i
];
1269 params
[0] = INT64_TO_INT(((GLint64
*) p
)[0]);
1273 params
[0] = BOOLEAN_TO_INT(*(GLboolean
*) p
);
1277 m
= *(GLmatrix
**) p
;
1278 for (i
= 0; i
< 16; i
++)
1279 params
[i
] = FLOAT_TO_INT(m
->m
[i
]);
1283 m
= *(GLmatrix
**) p
;
1284 for (i
= 0; i
< 16; i
++)
1285 params
[i
] = FLOAT_TO_INT(m
->m
[transpose
[i
]]);
1296 shift
= d
->type
- TYPE_BIT_0
;
1297 params
[0] = (*(GLbitfield
*) p
>> shift
) & 1;
1303 _mesa_GetInteger64v(GLenum pname
, GLint64
*params
)
1305 const struct value_desc
*d
;
1310 GET_CURRENT_CONTEXT(ctx
);
1312 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1314 d
= find_value("glGetInteger64v", pname
, &p
, &v
);
1319 params
[0] = d
->offset
;
1323 params
[3] = IROUND64(((GLfloat
*) p
)[3]);
1325 params
[2] = IROUND64(((GLfloat
*) p
)[2]);
1327 params
[1] = IROUND64(((GLfloat
*) p
)[1]);
1329 params
[0] = IROUND64(((GLfloat
*) p
)[0]);
1333 params
[3] = FLOAT_TO_INT64(((GLfloat
*) p
)[3]);
1335 params
[2] = FLOAT_TO_INT64(((GLfloat
*) p
)[2]);
1337 params
[1] = FLOAT_TO_INT64(((GLfloat
*) p
)[1]);
1339 params
[0] = FLOAT_TO_INT64(((GLfloat
*) p
)[0]);
1343 params
[0] = FLOAT_TO_INT64(((GLdouble
*) p
)[0]);
1347 params
[3] = ((GLint
*) p
)[3];
1349 params
[2] = ((GLint
*) p
)[2];
1352 params
[1] = ((GLint
*) p
)[1];
1355 params
[0] = ((GLint
*) p
)[0];
1359 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1360 params
[i
] = INT_TO_BOOLEAN(v
.value_int_n
.ints
[i
]);
1364 params
[0] = ((GLint64
*) p
)[0];
1368 params
[0] = ((GLboolean
*) p
)[0];
1372 m
= *(GLmatrix
**) p
;
1373 for (i
= 0; i
< 16; i
++)
1374 params
[i
] = FLOAT_TO_INT64(m
->m
[i
]);
1378 m
= *(GLmatrix
**) p
;
1379 for (i
= 0; i
< 16; i
++)
1380 params
[i
] = FLOAT_TO_INT64(m
->m
[transpose
[i
]]);
1391 shift
= d
->type
- TYPE_BIT_0
;
1392 params
[0] = (*(GLbitfield
*) p
>> shift
) & 1;
1398 _mesa_GetDoublev(GLenum pname
, GLdouble
*params
)
1400 const struct value_desc
*d
;
1405 GET_CURRENT_CONTEXT(ctx
);
1407 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1409 d
= find_value("glGetDoublev", pname
, &p
, &v
);
1414 params
[0] = d
->offset
;
1419 params
[3] = ((GLfloat
*) p
)[3];
1422 params
[2] = ((GLfloat
*) p
)[2];
1425 params
[1] = ((GLfloat
*) p
)[1];
1428 params
[0] = ((GLfloat
*) p
)[0];
1432 params
[0] = ((GLdouble
*) p
)[0];
1436 params
[3] = ((GLint
*) p
)[3];
1438 params
[2] = ((GLint
*) p
)[2];
1441 params
[1] = ((GLint
*) p
)[1];
1444 params
[0] = ((GLint
*) p
)[0];
1448 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1449 params
[i
] = v
.value_int_n
.ints
[i
];
1453 params
[0] = (GLdouble
) (((GLint64
*) p
)[0]);
1457 params
[0] = *(GLboolean
*) p
;
1461 m
= *(GLmatrix
**) p
;
1462 for (i
= 0; i
< 16; i
++)
1463 params
[i
] = m
->m
[i
];
1467 m
= *(GLmatrix
**) p
;
1468 for (i
= 0; i
< 16; i
++)
1469 params
[i
] = m
->m
[transpose
[i
]];
1480 shift
= d
->type
- TYPE_BIT_0
;
1481 params
[0] = (*(GLbitfield
*) p
>> shift
) & 1;
1486 static enum value_type
1487 find_value_indexed(const char *func
, GLenum pname
, int index
, union value
*v
)
1489 GET_CURRENT_CONTEXT(ctx
);
1494 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1496 if (!ctx
->Extensions
.EXT_draw_buffers2
)
1498 v
->value_int
= (ctx
->Color
.BlendEnabled
>> index
) & 1;
1503 case GL_BLEND_SRC_RGB
:
1504 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1506 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1508 v
->value_int
= ctx
->Color
.Blend
[index
].SrcRGB
;
1510 case GL_BLEND_SRC_ALPHA
:
1511 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1513 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1515 v
->value_int
= ctx
->Color
.Blend
[index
].SrcA
;
1519 case GL_BLEND_DST_RGB
:
1520 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1522 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1524 v
->value_int
= ctx
->Color
.Blend
[index
].DstRGB
;
1526 case GL_BLEND_DST_ALPHA
:
1527 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1529 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1531 v
->value_int
= ctx
->Color
.Blend
[index
].DstA
;
1533 case GL_BLEND_EQUATION_RGB
:
1534 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1536 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1538 v
->value_int
= ctx
->Color
.Blend
[index
].EquationRGB
;
1540 case GL_BLEND_EQUATION_ALPHA
:
1541 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1543 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1545 v
->value_int
= ctx
->Color
.Blend
[index
].EquationA
;
1548 case GL_COLOR_WRITEMASK
:
1549 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1551 if (!ctx
->Extensions
.EXT_draw_buffers2
)
1553 v
->value_int_4
[0] = ctx
->Color
.ColorMask
[index
][RCOMP
] ? 1 : 0;
1554 v
->value_int_4
[1] = ctx
->Color
.ColorMask
[index
][GCOMP
] ? 1 : 0;
1555 v
->value_int_4
[2] = ctx
->Color
.ColorMask
[index
][BCOMP
] ? 1 : 0;
1556 v
->value_int_4
[3] = ctx
->Color
.ColorMask
[index
][ACOMP
] ? 1 : 0;
1559 case GL_TRANSFORM_FEEDBACK_BUFFER_START
:
1560 if (index
>= ctx
->Const
.MaxTransformFeedbackBuffers
)
1562 if (!ctx
->Extensions
.EXT_transform_feedback
)
1564 v
->value_int64
= ctx
->TransformFeedback
.CurrentObject
->Offset
[index
];
1567 case GL_TRANSFORM_FEEDBACK_BUFFER_SIZE
:
1568 if (index
>= ctx
->Const
.MaxTransformFeedbackBuffers
)
1570 if (!ctx
->Extensions
.EXT_transform_feedback
)
1572 v
->value_int64
= ctx
->TransformFeedback
.CurrentObject
->Size
[index
];
1575 case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING
:
1576 if (index
>= ctx
->Const
.MaxTransformFeedbackBuffers
)
1578 if (!ctx
->Extensions
.EXT_transform_feedback
)
1580 v
->value_int
= ctx
->TransformFeedback
.CurrentObject
->BufferNames
[index
];
1583 case GL_UNIFORM_BUFFER_BINDING
:
1584 if (index
>= ctx
->Const
.MaxUniformBufferBindings
)
1586 if (!ctx
->Extensions
.ARB_uniform_buffer_object
)
1588 v
->value_int
= ctx
->UniformBufferBindings
[index
].BufferObject
->Name
;
1591 case GL_UNIFORM_BUFFER_START
:
1592 if (index
>= ctx
->Const
.MaxUniformBufferBindings
)
1594 if (!ctx
->Extensions
.ARB_uniform_buffer_object
)
1596 v
->value_int
= ctx
->UniformBufferBindings
[index
].Offset
;
1599 case GL_UNIFORM_BUFFER_SIZE
:
1600 if (index
>= ctx
->Const
.MaxUniformBufferBindings
)
1602 if (!ctx
->Extensions
.ARB_uniform_buffer_object
)
1604 v
->value_int
= ctx
->UniformBufferBindings
[index
].Size
;
1609 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=%s)", func
,
1610 _mesa_lookup_enum_by_nr(pname
));
1611 return TYPE_INVALID
;
1613 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(pname=%s)", func
,
1614 _mesa_lookup_enum_by_nr(pname
));
1615 return TYPE_INVALID
;
1619 _mesa_GetBooleanIndexedv( GLenum pname
, GLuint index
, GLboolean
*params
)
1622 enum value_type type
=
1623 find_value_indexed("glGetBooleanIndexedv", pname
, index
, &v
);
1627 params
[0] = INT_TO_BOOLEAN(v
.value_int
);
1630 params
[0] = INT_TO_BOOLEAN(v
.value_int_4
[0]);
1631 params
[1] = INT_TO_BOOLEAN(v
.value_int_4
[1]);
1632 params
[2] = INT_TO_BOOLEAN(v
.value_int_4
[2]);
1633 params
[3] = INT_TO_BOOLEAN(v
.value_int_4
[3]);
1636 params
[0] = INT64_TO_BOOLEAN(v
.value_int
);
1639 ; /* nothing - GL error was recorded */
1644 _mesa_GetIntegerIndexedv( GLenum pname
, GLuint index
, GLint
*params
)
1647 enum value_type type
=
1648 find_value_indexed("glGetIntegerIndexedv", pname
, index
, &v
);
1652 params
[0] = v
.value_int
;
1655 params
[0] = v
.value_int_4
[0];
1656 params
[1] = v
.value_int_4
[1];
1657 params
[2] = v
.value_int_4
[2];
1658 params
[3] = v
.value_int_4
[3];
1661 params
[0] = INT64_TO_INT(v
.value_int
);
1664 ; /* nothing - GL error was recorded */
1669 _mesa_GetInteger64Indexedv( GLenum pname
, GLuint index
, GLint64
*params
)
1672 enum value_type type
=
1673 find_value_indexed("glGetIntegerIndexedv", pname
, index
, &v
);
1677 params
[0] = v
.value_int
;
1680 params
[0] = v
.value_int_4
[0];
1681 params
[1] = v
.value_int_4
[1];
1682 params
[2] = v
.value_int_4
[2];
1683 params
[3] = v
.value_int_4
[3];
1686 params
[0] = v
.value_int
;
1689 ; /* nothing - GL error was recorded */
1695 _mesa_GetFixedv(GLenum pname
, GLfixed
*params
)
1697 const struct value_desc
*d
;
1703 d
= find_value("glGetDoublev", pname
, &p
, &v
);
1708 params
[0] = INT_TO_FIXED(d
->offset
);
1713 params
[3] = FLOAT_TO_FIXED(((GLfloat
*) p
)[3]);
1716 params
[2] = FLOAT_TO_FIXED(((GLfloat
*) p
)[2]);
1719 params
[1] = FLOAT_TO_FIXED(((GLfloat
*) p
)[1]);
1722 params
[0] = FLOAT_TO_FIXED(((GLfloat
*) p
)[0]);
1726 params
[0] = FLOAT_TO_FIXED(((GLdouble
*) p
)[0]);
1730 params
[3] = INT_TO_FIXED(((GLint
*) p
)[3]);
1732 params
[2] = INT_TO_FIXED(((GLint
*) p
)[2]);
1735 params
[1] = INT_TO_FIXED(((GLint
*) p
)[1]);
1738 params
[0] = INT_TO_FIXED(((GLint
*) p
)[0]);
1742 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1743 params
[i
] = INT_TO_FIXED(v
.value_int_n
.ints
[i
]);
1747 params
[0] = ((GLint64
*) p
)[0];
1751 params
[0] = BOOLEAN_TO_FIXED(((GLboolean
*) p
)[0]);
1755 m
= *(GLmatrix
**) p
;
1756 for (i
= 0; i
< 16; i
++)
1757 params
[i
] = FLOAT_TO_FIXED(m
->m
[i
]);
1761 m
= *(GLmatrix
**) p
;
1762 for (i
= 0; i
< 16; i
++)
1763 params
[i
] = FLOAT_TO_FIXED(m
->m
[transpose
[i
]]);
1774 shift
= d
->type
- TYPE_BIT_0
;
1775 params
[0] = BOOLEAN_TO_FIXED((*(GLbitfield
*) p
>> shift
) & 1);