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>
30 #include "extensions.h"
33 #include "mfeatures.h"
36 #include "texcompress.h"
37 #include "framebuffer.h"
38 #include "samplerobj.h"
40 /* This is a table driven implemetation of the glGet*v() functions.
41 * The basic idea is that most getters just look up an int somewhere
42 * in struct gl_context and then convert it to a bool or float according to
43 * which of glGetIntegerv() glGetBooleanv() etc is being called.
44 * Instead of generating code to do this, we can just record the enum
45 * value and the offset into struct gl_context in an array of structs. Then
46 * in glGet*(), we lookup the struct for the enum in question, and use
47 * the offset to get the int we need.
49 * Sometimes we need to look up a float, a boolean, a bit in a
50 * bitfield, a matrix or other types instead, so we need to track the
51 * type of the value in struct gl_context. And sometimes the value isn't in
52 * struct gl_context but in the drawbuffer, the array object, current texture
53 * unit, or maybe it's a computed value. So we need to also track
54 * where or how to find the value. Finally, we sometimes need to
55 * check that one of a number of extensions are enabled, the GL
56 * version or flush or call _mesa_update_state(). This is done by
57 * attaching optional extra information to the value description
58 * struct, it's sort of like an array of opcodes that describe extra
61 * Putting all this together we end up with struct value_desc below,
62 * and with a couple of macros to help, the table of struct value_desc
63 * is about as concise as the specification in the old python script.
66 #define FLOAT_TO_BOOLEAN(X) ( (X) ? GL_TRUE : GL_FALSE )
67 #define FLOAT_TO_FIXED(F) ( ((F) * 65536.0f > INT_MAX) ? INT_MAX : \
68 ((F) * 65536.0f < INT_MIN) ? INT_MIN : \
69 (GLint) ((F) * 65536.0f) )
71 #define INT_TO_BOOLEAN(I) ( (I) ? GL_TRUE : GL_FALSE )
72 #define INT_TO_FIXED(I) ( ((I) > SHRT_MAX) ? INT_MAX : \
73 ((I) < SHRT_MIN) ? INT_MIN : \
74 (GLint) ((I) * 65536) )
76 #define INT64_TO_BOOLEAN(I) ( (I) ? GL_TRUE : GL_FALSE )
77 #define INT64_TO_INT(I) ( (GLint)((I > INT_MAX) ? INT_MAX : ((I < INT_MIN) ? INT_MIN : (I))) )
79 #define BOOLEAN_TO_INT(B) ( (GLint) (B) )
80 #define BOOLEAN_TO_INT64(B) ( (GLint64) (B) )
81 #define BOOLEAN_TO_FLOAT(B) ( (B) ? 1.0F : 0.0F )
82 #define BOOLEAN_TO_FIXED(B) ( (GLint) ((B) ? 1 : 0) << 16 )
84 #define ENUM_TO_INT64(E) ( (GLint64) (E) )
85 #define ENUM_TO_FIXED(E) (E)
120 enum value_location
{
138 EXTRA_NEW_FRAG_CLAMP
,
139 EXTRA_VALID_DRAW_BUFFER
,
140 EXTRA_VALID_TEXTURE_UNIT
,
141 EXTRA_VALID_CLIP_DISTANCE
,
146 #define NO_EXTRA NULL
151 GLubyte location
; /**< enum value_location */
152 GLubyte type
; /**< enum value_type */
159 GLfloat value_float_4
[4];
160 GLmatrix
*value_matrix
;
162 GLint value_int_4
[4];
166 /* Sigh, see GL_COMPRESSED_TEXTURE_FORMATS_ARB handling */
170 GLboolean value_bool
;
173 #define BUFFER_FIELD(field, type) \
174 LOC_BUFFER, type, offsetof(struct gl_framebuffer, field)
175 #define CONTEXT_FIELD(field, type) \
176 LOC_CONTEXT, type, offsetof(struct gl_context, field)
177 #define ARRAY_FIELD(field, type) \
178 LOC_ARRAY, type, offsetof(struct gl_array_object, field)
179 #undef CONST /* already defined through windows.h */
180 #define CONST(value) \
181 LOC_CONTEXT, TYPE_CONST, value
183 #define BUFFER_INT(field) BUFFER_FIELD(field, TYPE_INT)
184 #define BUFFER_ENUM(field) BUFFER_FIELD(field, TYPE_ENUM)
185 #define BUFFER_BOOL(field) BUFFER_FIELD(field, TYPE_BOOLEAN)
187 #define CONTEXT_INT(field) CONTEXT_FIELD(field, TYPE_INT)
188 #define CONTEXT_INT2(field) CONTEXT_FIELD(field, TYPE_INT_2)
189 #define CONTEXT_INT64(field) CONTEXT_FIELD(field, TYPE_INT64)
190 #define CONTEXT_ENUM(field) CONTEXT_FIELD(field, TYPE_ENUM)
191 #define CONTEXT_ENUM2(field) CONTEXT_FIELD(field, TYPE_ENUM_2)
192 #define CONTEXT_BOOL(field) CONTEXT_FIELD(field, TYPE_BOOLEAN)
193 #define CONTEXT_BIT0(field) CONTEXT_FIELD(field, TYPE_BIT_0)
194 #define CONTEXT_BIT1(field) CONTEXT_FIELD(field, TYPE_BIT_1)
195 #define CONTEXT_BIT2(field) CONTEXT_FIELD(field, TYPE_BIT_2)
196 #define CONTEXT_BIT3(field) CONTEXT_FIELD(field, TYPE_BIT_3)
197 #define CONTEXT_BIT4(field) CONTEXT_FIELD(field, TYPE_BIT_4)
198 #define CONTEXT_BIT5(field) CONTEXT_FIELD(field, TYPE_BIT_5)
199 #define CONTEXT_BIT6(field) CONTEXT_FIELD(field, TYPE_BIT_6)
200 #define CONTEXT_BIT7(field) CONTEXT_FIELD(field, TYPE_BIT_7)
201 #define CONTEXT_FLOAT(field) CONTEXT_FIELD(field, TYPE_FLOAT)
202 #define CONTEXT_FLOAT2(field) CONTEXT_FIELD(field, TYPE_FLOAT_2)
203 #define CONTEXT_FLOAT3(field) CONTEXT_FIELD(field, TYPE_FLOAT_3)
204 #define CONTEXT_FLOAT4(field) CONTEXT_FIELD(field, TYPE_FLOAT_4)
205 #define CONTEXT_MATRIX(field) CONTEXT_FIELD(field, TYPE_MATRIX)
206 #define CONTEXT_MATRIX_T(field) CONTEXT_FIELD(field, TYPE_MATRIX_T)
208 #define ARRAY_INT(field) ARRAY_FIELD(field, TYPE_INT)
209 #define ARRAY_ENUM(field) ARRAY_FIELD(field, TYPE_ENUM)
210 #define ARRAY_BOOL(field) ARRAY_FIELD(field, TYPE_BOOLEAN)
213 offsetof(struct gl_extensions, f)
215 #define EXTRA_EXT(e) \
216 static const int extra_##e[] = { \
220 #define EXTRA_EXT2(e1, e2) \
221 static const int extra_##e1##_##e2[] = { \
222 EXT(e1), EXT(e2), EXTRA_END \
225 /* The 'extra' mechanism is a way to specify extra checks (such as
226 * extensions or specific gl versions) or actions (flush current, new
227 * buffers) that we need to do before looking up an enum. We need to
228 * declare them all up front so we can refer to them in the value_desc
231 static const int extra_new_buffers
[] = {
236 static const int extra_new_frag_clamp
[] = {
237 EXTRA_NEW_FRAG_CLAMP
,
241 static const int extra_valid_draw_buffer
[] = {
242 EXTRA_VALID_DRAW_BUFFER
,
246 static const int extra_valid_texture_unit
[] = {
247 EXTRA_VALID_TEXTURE_UNIT
,
251 static const int extra_valid_clip_distance
[] = {
252 EXTRA_VALID_CLIP_DISTANCE
,
256 static const int extra_flush_current_valid_texture_unit
[] = {
258 EXTRA_VALID_TEXTURE_UNIT
,
262 static const int extra_flush_current
[] = {
267 static const int extra_EXT_secondary_color_flush_current
[] = {
268 EXT(EXT_secondary_color
),
273 static const int extra_EXT_fog_coord_flush_current
[] = {
279 static const int extra_EXT_texture_integer
[] = {
280 EXT(EXT_texture_integer
),
284 static const int extra_EXT_texture_integer_and_new_buffers
[] = {
285 EXT(EXT_texture_integer
),
290 static const int extra_GLSL_130
[] = {
295 static const int extra_texture_buffer_object
[] = {
298 EXT(ARB_texture_buffer_object
),
302 static const int extra_ARB_transform_feedback2_api_es3
[] = {
303 EXT(ARB_transform_feedback2
),
308 static const int extra_ARB_uniform_buffer_object_and_geometry_shader
[] = {
309 EXT(ARB_uniform_buffer_object
),
310 EXT(ARB_geometry_shader4
),
314 static const int extra_ARB_ES2_compatibility_api_es2
[] = {
315 EXT(ARB_ES2_compatibility
),
320 static const int extra_ARB_ES3_compatibility_api_es3
[] = {
321 EXT(ARB_ES3_compatibility
),
326 static const int extra_EXT_framebuffer_sRGB_and_new_buffers
[] = {
327 EXT(EXT_framebuffer_sRGB
),
332 EXTRA_EXT(ARB_texture_cube_map
);
333 EXTRA_EXT(MESA_texture_array
);
334 EXTRA_EXT2(EXT_secondary_color
, ARB_vertex_program
);
335 EXTRA_EXT(EXT_secondary_color
);
336 EXTRA_EXT(EXT_fog_coord
);
337 EXTRA_EXT(NV_fog_distance
);
338 EXTRA_EXT(EXT_texture_filter_anisotropic
);
339 EXTRA_EXT(NV_point_sprite
);
340 EXTRA_EXT(NV_texture_rectangle
);
341 EXTRA_EXT(EXT_stencil_two_side
);
342 EXTRA_EXT(EXT_depth_bounds_test
);
343 EXTRA_EXT(ARB_depth_clamp
);
344 EXTRA_EXT(ATI_fragment_shader
);
345 EXTRA_EXT(EXT_framebuffer_blit
);
346 EXTRA_EXT(ARB_shader_objects
);
347 EXTRA_EXT(EXT_provoking_vertex
);
348 EXTRA_EXT(ARB_fragment_shader
);
349 EXTRA_EXT(ARB_fragment_program
);
350 EXTRA_EXT2(ARB_framebuffer_object
, EXT_framebuffer_multisample
);
351 EXTRA_EXT(EXT_framebuffer_object
);
352 EXTRA_EXT(ARB_seamless_cube_map
);
354 EXTRA_EXT(ARB_vertex_shader
);
355 EXTRA_EXT(EXT_transform_feedback
);
356 EXTRA_EXT(ARB_transform_feedback3
);
357 EXTRA_EXT(EXT_pixel_buffer_object
);
358 EXTRA_EXT(ARB_vertex_program
);
359 EXTRA_EXT2(NV_point_sprite
, ARB_point_sprite
);
360 EXTRA_EXT2(ARB_vertex_program
, ARB_fragment_program
);
361 EXTRA_EXT(ARB_geometry_shader4
);
362 EXTRA_EXT(ARB_color_buffer_float
);
363 EXTRA_EXT(EXT_framebuffer_sRGB
);
364 EXTRA_EXT(OES_EGL_image_external
);
365 EXTRA_EXT(ARB_blend_func_extended
);
366 EXTRA_EXT(ARB_uniform_buffer_object
);
367 EXTRA_EXT(ARB_timer_query
);
368 EXTRA_EXT(ARB_map_buffer_alignment
);
369 EXTRA_EXT(ARB_texture_cube_map_array
);
370 EXTRA_EXT(ARB_texture_buffer_range
);
371 EXTRA_EXT(ARB_texture_multisample
);
374 extra_ARB_color_buffer_float_or_glcore
[] = {
375 EXT(ARB_color_buffer_float
),
381 extra_NV_primitive_restart
[] = {
382 EXT(NV_primitive_restart
),
386 static const int extra_version_30
[] = { EXTRA_VERSION_30
, EXTRA_END
};
387 static const int extra_version_31
[] = { EXTRA_VERSION_31
, EXTRA_END
};
388 static const int extra_version_32
[] = { EXTRA_VERSION_32
, EXTRA_END
};
390 static const int extra_gl30_es3
[] = {
397 extra_ARB_vertex_program_api_es2
[] = {
398 EXT(ARB_vertex_program
),
403 /* The ReadBuffer get token is valid under either full GL or under
404 * GLES2 if the NV_read_buffer extension is available. */
406 extra_NV_read_buffer_api_gl
[] = {
412 static const int extra_core_ARB_color_buffer_float_and_new_buffers
[] = {
414 EXT(ARB_color_buffer_float
),
419 /* This is the big table describing all the enums we accept in
420 * glGet*v(). The table is partitioned into six parts: enums
421 * understood by all GL APIs (OpenGL, GLES and GLES2), enums shared
422 * between OpenGL and GLES, enums exclusive to GLES, etc for the
423 * remaining combinations. To look up the enums valid in a given API
424 * we will use a hash table specific to that API. These tables are in
425 * turn generated at build time and included through get_hash.h.
428 #include "get_hash.h"
430 /* All we need now is a way to look up the value struct from the enum.
431 * The code generated by gcc for the old generated big switch
432 * statement is a big, balanced, open coded if/else tree, essentially
433 * an unrolled binary search. It would be natural to sort the new
434 * enum table and use bsearch(), but we will use a read-only hash
435 * table instead. bsearch() has a nice guaranteed worst case
436 * performance, but we're also guaranteed to hit that worst case
437 * (log2(n) iterations) for about half the enums. Instead, using an
438 * open addressing hash table, we can find the enum on the first try
439 * for 80% of the enums, 1 collision for 10% and never more than 5
440 * collisions for any enum (typical numbers). And the code is very
441 * simple, even though it feels a little magic. */
445 print_table_stats(int api
)
447 int i
, j
, collisions
[11], count
, hash
, mask
;
448 const struct value_desc
*d
;
449 const char *api_names
[] = {
450 [API_OPENGL_COMPAT
] = "GL",
451 [API_OPENGL_CORE
] = "GL_CORE",
452 [API_OPENGLES
] = "GLES",
453 [API_OPENGLES2
] = "GLES2",
455 const char *api_name
;
457 api_name
= api
< Elements(api_names
) ? api_names
[api
] : "N/A";
459 mask
= Elements(table(api
)) - 1;
460 memset(collisions
, 0, sizeof collisions
);
462 for (i
= 0; i
< Elements(table(api
)); i
++) {
466 d
= &values
[table(api
)[i
]];
467 hash
= (d
->pname
* prime_factor
);
470 if (values
[table(api
)[hash
& mask
]].pname
== d
->pname
)
482 printf("number of enums for %s: %d (total %ld)\n",
483 api_name
, count
, Elements(values
));
484 for (i
= 0; i
< Elements(collisions
) - 1; i
++)
485 if (collisions
[i
] > 0)
486 printf(" %d enums with %d %scollisions\n",
487 collisions
[i
], i
, i
== 10 ? "or more " : "");
492 * Initialize the enum hash for a given API
494 * This is called from one_time_init() to insert the enum values that
495 * are valid for the API in question into the enum hash table.
497 * \param the current context, for determining the API in question
499 void _mesa_init_get_hash(struct gl_context
*ctx
)
507 * Handle irregular enums
509 * Some values don't conform to the "well-known type at context
510 * pointer + offset" pattern, so we have this function to catch all
511 * the corner cases. Typically, it's a computed value or a one-off
512 * pointer to a custom struct or something.
514 * In this case we can't return a pointer to the value, so we'll have
515 * to use the temporary variable 'v' declared back in the calling
516 * glGet*v() function to store the result.
518 * \param ctx the current context
519 * \param d the struct value_desc that describes the enum
520 * \param v pointer to the tmp declared in the calling glGet*v() function
523 find_custom_value(struct gl_context
*ctx
, const struct value_desc
*d
, union value
*v
)
525 struct gl_buffer_object
**buffer_obj
;
526 struct gl_client_array
*array
;
530 case GL_MAJOR_VERSION
:
531 v
->value_int
= ctx
->Version
/ 10;
533 case GL_MINOR_VERSION
:
534 v
->value_int
= ctx
->Version
% 10;
540 case GL_TEXTURE_1D_ARRAY_EXT
:
541 case GL_TEXTURE_2D_ARRAY_EXT
:
542 case GL_TEXTURE_CUBE_MAP_ARB
:
543 case GL_TEXTURE_RECTANGLE_NV
:
544 case GL_TEXTURE_EXTERNAL_OES
:
545 v
->value_bool
= _mesa_IsEnabled(d
->pname
);
548 case GL_LINE_STIPPLE_PATTERN
:
549 /* This is the only GLushort, special case it here by promoting
550 * to an int rather than introducing a new type. */
551 v
->value_int
= ctx
->Line
.StipplePattern
;
554 case GL_CURRENT_RASTER_TEXTURE_COORDS
:
555 unit
= ctx
->Texture
.CurrentUnit
;
556 v
->value_float_4
[0] = ctx
->Current
.RasterTexCoords
[unit
][0];
557 v
->value_float_4
[1] = ctx
->Current
.RasterTexCoords
[unit
][1];
558 v
->value_float_4
[2] = ctx
->Current
.RasterTexCoords
[unit
][2];
559 v
->value_float_4
[3] = ctx
->Current
.RasterTexCoords
[unit
][3];
562 case GL_CURRENT_TEXTURE_COORDS
:
563 unit
= ctx
->Texture
.CurrentUnit
;
564 v
->value_float_4
[0] = ctx
->Current
.Attrib
[VERT_ATTRIB_TEX0
+ unit
][0];
565 v
->value_float_4
[1] = ctx
->Current
.Attrib
[VERT_ATTRIB_TEX0
+ unit
][1];
566 v
->value_float_4
[2] = ctx
->Current
.Attrib
[VERT_ATTRIB_TEX0
+ unit
][2];
567 v
->value_float_4
[3] = ctx
->Current
.Attrib
[VERT_ATTRIB_TEX0
+ unit
][3];
570 case GL_COLOR_WRITEMASK
:
571 v
->value_int_4
[0] = ctx
->Color
.ColorMask
[0][RCOMP
] ? 1 : 0;
572 v
->value_int_4
[1] = ctx
->Color
.ColorMask
[0][GCOMP
] ? 1 : 0;
573 v
->value_int_4
[2] = ctx
->Color
.ColorMask
[0][BCOMP
] ? 1 : 0;
574 v
->value_int_4
[3] = ctx
->Color
.ColorMask
[0][ACOMP
] ? 1 : 0;
578 v
->value_bool
= ctx
->Current
.Attrib
[VERT_ATTRIB_EDGEFLAG
][0] == 1.0;
582 v
->value_enum
= ctx
->ReadBuffer
->ColorReadBuffer
;
585 case GL_MAP2_GRID_DOMAIN
:
586 v
->value_float_4
[0] = ctx
->Eval
.MapGrid2u1
;
587 v
->value_float_4
[1] = ctx
->Eval
.MapGrid2u2
;
588 v
->value_float_4
[2] = ctx
->Eval
.MapGrid2v1
;
589 v
->value_float_4
[3] = ctx
->Eval
.MapGrid2v2
;
592 case GL_TEXTURE_STACK_DEPTH
:
593 unit
= ctx
->Texture
.CurrentUnit
;
594 v
->value_int
= ctx
->TextureMatrixStack
[unit
].Depth
+ 1;
596 case GL_TEXTURE_MATRIX
:
597 unit
= ctx
->Texture
.CurrentUnit
;
598 v
->value_matrix
= ctx
->TextureMatrixStack
[unit
].Top
;
601 case GL_TEXTURE_COORD_ARRAY
:
602 case GL_TEXTURE_COORD_ARRAY_SIZE
:
603 case GL_TEXTURE_COORD_ARRAY_TYPE
:
604 case GL_TEXTURE_COORD_ARRAY_STRIDE
:
605 array
= &ctx
->Array
.ArrayObj
->VertexAttrib
[VERT_ATTRIB_TEX(ctx
->Array
.ActiveTexture
)];
606 v
->value_int
= *(GLuint
*) ((char *) array
+ d
->offset
);
609 case GL_ACTIVE_TEXTURE_ARB
:
610 v
->value_int
= GL_TEXTURE0_ARB
+ ctx
->Texture
.CurrentUnit
;
612 case GL_CLIENT_ACTIVE_TEXTURE_ARB
:
613 v
->value_int
= GL_TEXTURE0_ARB
+ ctx
->Array
.ActiveTexture
;
616 case GL_MODELVIEW_STACK_DEPTH
:
617 case GL_PROJECTION_STACK_DEPTH
:
618 v
->value_int
= *(GLint
*) ((char *) ctx
+ d
->offset
) + 1;
621 case GL_MAX_TEXTURE_SIZE
:
622 case GL_MAX_3D_TEXTURE_SIZE
:
623 case GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB
:
624 p
= (GLuint
*) ((char *) ctx
+ d
->offset
);
625 v
->value_int
= 1 << (*p
- 1);
629 v
->value_int_4
[0] = ctx
->Scissor
.X
;
630 v
->value_int_4
[1] = ctx
->Scissor
.Y
;
631 v
->value_int_4
[2] = ctx
->Scissor
.Width
;
632 v
->value_int_4
[3] = ctx
->Scissor
.Height
;
637 ctx
->ListState
.CurrentList
? ctx
->ListState
.CurrentList
->Name
: 0;
640 if (!ctx
->CompileFlag
)
642 else if (ctx
->ExecuteFlag
)
643 v
->value_enum
= GL_COMPILE_AND_EXECUTE
;
645 v
->value_enum
= GL_COMPILE
;
649 v
->value_int_4
[0] = ctx
->Viewport
.X
;
650 v
->value_int_4
[1] = ctx
->Viewport
.Y
;
651 v
->value_int_4
[2] = ctx
->Viewport
.Width
;
652 v
->value_int_4
[3] = ctx
->Viewport
.Height
;
655 case GL_ACTIVE_STENCIL_FACE_EXT
:
656 v
->value_enum
= ctx
->Stencil
.ActiveFace
? GL_BACK
: GL_FRONT
;
659 case GL_STENCIL_FAIL
:
660 v
->value_enum
= ctx
->Stencil
.FailFunc
[ctx
->Stencil
.ActiveFace
];
662 case GL_STENCIL_FUNC
:
663 v
->value_enum
= ctx
->Stencil
.Function
[ctx
->Stencil
.ActiveFace
];
665 case GL_STENCIL_PASS_DEPTH_FAIL
:
666 v
->value_enum
= ctx
->Stencil
.ZFailFunc
[ctx
->Stencil
.ActiveFace
];
668 case GL_STENCIL_PASS_DEPTH_PASS
:
669 v
->value_enum
= ctx
->Stencil
.ZPassFunc
[ctx
->Stencil
.ActiveFace
];
672 v
->value_int
= ctx
->Stencil
.Ref
[ctx
->Stencil
.ActiveFace
];
674 case GL_STENCIL_VALUE_MASK
:
675 v
->value_int
= ctx
->Stencil
.ValueMask
[ctx
->Stencil
.ActiveFace
];
677 case GL_STENCIL_WRITEMASK
:
678 v
->value_int
= ctx
->Stencil
.WriteMask
[ctx
->Stencil
.ActiveFace
];
681 case GL_NUM_EXTENSIONS
:
682 v
->value_int
= _mesa_get_extension_count(ctx
);
685 case GL_IMPLEMENTATION_COLOR_READ_TYPE_OES
:
686 v
->value_int
= _mesa_get_color_read_type(ctx
);
688 case GL_IMPLEMENTATION_COLOR_READ_FORMAT_OES
:
689 v
->value_int
= _mesa_get_color_read_format(ctx
);
692 case GL_CURRENT_MATRIX_STACK_DEPTH_ARB
:
693 v
->value_int
= ctx
->CurrentStack
->Depth
+ 1;
695 case GL_CURRENT_MATRIX_ARB
:
696 case GL_TRANSPOSE_CURRENT_MATRIX_ARB
:
697 v
->value_matrix
= ctx
->CurrentStack
->Top
;
700 case GL_NUM_COMPRESSED_TEXTURE_FORMATS_ARB
:
701 v
->value_int
= _mesa_get_compressed_formats(ctx
, NULL
);
703 case GL_COMPRESSED_TEXTURE_FORMATS_ARB
:
705 _mesa_get_compressed_formats(ctx
, v
->value_int_n
.ints
);
706 ASSERT(v
->value_int_n
.n
<= 100);
709 case GL_MAX_VARYING_FLOATS_ARB
:
710 v
->value_int
= ctx
->Const
.MaxVarying
* 4;
713 /* Various object names */
715 case GL_TEXTURE_BINDING_1D
:
716 case GL_TEXTURE_BINDING_2D
:
717 case GL_TEXTURE_BINDING_3D
:
718 case GL_TEXTURE_BINDING_1D_ARRAY_EXT
:
719 case GL_TEXTURE_BINDING_2D_ARRAY_EXT
:
720 case GL_TEXTURE_BINDING_CUBE_MAP_ARB
:
721 case GL_TEXTURE_BINDING_RECTANGLE_NV
:
722 case GL_TEXTURE_BINDING_EXTERNAL_OES
:
723 case GL_TEXTURE_BINDING_CUBE_MAP_ARRAY
:
724 case GL_TEXTURE_BINDING_2D_MULTISAMPLE
:
725 case GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY
:
726 unit
= ctx
->Texture
.CurrentUnit
;
728 ctx
->Texture
.Unit
[unit
].CurrentTex
[d
->offset
]->Name
;
731 /* GL_ARB_vertex_buffer_object */
732 case GL_VERTEX_ARRAY_BUFFER_BINDING_ARB
:
733 case GL_NORMAL_ARRAY_BUFFER_BINDING_ARB
:
734 case GL_COLOR_ARRAY_BUFFER_BINDING_ARB
:
735 case GL_INDEX_ARRAY_BUFFER_BINDING_ARB
:
736 case GL_EDGE_FLAG_ARRAY_BUFFER_BINDING_ARB
:
737 case GL_SECONDARY_COLOR_ARRAY_BUFFER_BINDING_ARB
:
738 case GL_FOG_COORDINATE_ARRAY_BUFFER_BINDING_ARB
:
739 buffer_obj
= (struct gl_buffer_object
**)
740 ((char *) ctx
->Array
.ArrayObj
+ d
->offset
);
741 v
->value_int
= (*buffer_obj
)->Name
;
743 case GL_ARRAY_BUFFER_BINDING_ARB
:
744 v
->value_int
= ctx
->Array
.ArrayBufferObj
->Name
;
746 case GL_TEXTURE_COORD_ARRAY_BUFFER_BINDING_ARB
:
748 ctx
->Array
.ArrayObj
->VertexAttrib
[VERT_ATTRIB_TEX(ctx
->Array
.ActiveTexture
)].BufferObj
->Name
;
750 case GL_ELEMENT_ARRAY_BUFFER_BINDING_ARB
:
751 v
->value_int
= ctx
->Array
.ArrayObj
->ElementArrayBufferObj
->Name
;
754 /* ARB_copy_buffer */
755 case GL_COPY_READ_BUFFER
:
756 v
->value_int
= ctx
->CopyReadBuffer
->Name
;
758 case GL_COPY_WRITE_BUFFER
:
759 v
->value_int
= ctx
->CopyWriteBuffer
->Name
;
762 case GL_PIXEL_PACK_BUFFER_BINDING_EXT
:
763 v
->value_int
= ctx
->Pack
.BufferObj
->Name
;
765 case GL_PIXEL_UNPACK_BUFFER_BINDING_EXT
:
766 v
->value_int
= ctx
->Unpack
.BufferObj
->Name
;
768 case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING
:
769 v
->value_int
= ctx
->TransformFeedback
.CurrentBuffer
->Name
;
771 case GL_TRANSFORM_FEEDBACK_BUFFER_PAUSED
:
772 v
->value_int
= ctx
->TransformFeedback
.CurrentObject
->Paused
;
774 case GL_TRANSFORM_FEEDBACK_BUFFER_ACTIVE
:
775 v
->value_int
= ctx
->TransformFeedback
.CurrentObject
->Active
;
777 case GL_TRANSFORM_FEEDBACK_BINDING
:
778 v
->value_int
= ctx
->TransformFeedback
.CurrentObject
->Name
;
780 case GL_CURRENT_PROGRAM
:
782 ctx
->Shader
.ActiveProgram
? ctx
->Shader
.ActiveProgram
->Name
: 0;
784 case GL_READ_FRAMEBUFFER_BINDING_EXT
:
785 v
->value_int
= ctx
->ReadBuffer
->Name
;
787 case GL_RENDERBUFFER_BINDING_EXT
:
789 ctx
->CurrentRenderbuffer
? ctx
->CurrentRenderbuffer
->Name
: 0;
791 case GL_POINT_SIZE_ARRAY_BUFFER_BINDING_OES
:
792 v
->value_int
= ctx
->Array
.ArrayObj
->VertexAttrib
[VERT_ATTRIB_POINT_SIZE
].BufferObj
->Name
;
796 if (_mesa_get_clamp_fragment_color(ctx
))
797 COPY_4FV(v
->value_float_4
, ctx
->Fog
.Color
);
799 COPY_4FV(v
->value_float_4
, ctx
->Fog
.ColorUnclamped
);
801 case GL_COLOR_CLEAR_VALUE
:
802 if (_mesa_get_clamp_fragment_color(ctx
)) {
803 v
->value_float_4
[0] = CLAMP(ctx
->Color
.ClearColor
.f
[0], 0.0F
, 1.0F
);
804 v
->value_float_4
[1] = CLAMP(ctx
->Color
.ClearColor
.f
[1], 0.0F
, 1.0F
);
805 v
->value_float_4
[2] = CLAMP(ctx
->Color
.ClearColor
.f
[2], 0.0F
, 1.0F
);
806 v
->value_float_4
[3] = CLAMP(ctx
->Color
.ClearColor
.f
[3], 0.0F
, 1.0F
);
808 COPY_4FV(v
->value_float_4
, ctx
->Color
.ClearColor
.f
);
810 case GL_BLEND_COLOR_EXT
:
811 if (_mesa_get_clamp_fragment_color(ctx
))
812 COPY_4FV(v
->value_float_4
, ctx
->Color
.BlendColor
);
814 COPY_4FV(v
->value_float_4
, ctx
->Color
.BlendColorUnclamped
);
816 case GL_ALPHA_TEST_REF
:
817 if (_mesa_get_clamp_fragment_color(ctx
))
818 v
->value_float
= ctx
->Color
.AlphaRef
;
820 v
->value_float
= ctx
->Color
.AlphaRefUnclamped
;
822 case GL_MAX_VERTEX_UNIFORM_VECTORS
:
823 v
->value_int
= ctx
->Const
.VertexProgram
.MaxUniformComponents
/ 4;
826 case GL_MAX_FRAGMENT_UNIFORM_VECTORS
:
827 v
->value_int
= ctx
->Const
.FragmentProgram
.MaxUniformComponents
/ 4;
830 /* GL_ARB_texture_buffer_object */
831 case GL_TEXTURE_BUFFER_ARB
:
832 v
->value_int
= ctx
->Texture
.BufferObject
->Name
;
834 case GL_TEXTURE_BINDING_BUFFER_ARB
:
835 unit
= ctx
->Texture
.CurrentUnit
;
837 ctx
->Texture
.Unit
[unit
].CurrentTex
[TEXTURE_BUFFER_INDEX
]->Name
;
839 case GL_TEXTURE_BUFFER_DATA_STORE_BINDING_ARB
:
841 struct gl_buffer_object
*buf
=
842 ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
]
843 .CurrentTex
[TEXTURE_BUFFER_INDEX
]->BufferObject
;
844 v
->value_int
= buf
? buf
->Name
: 0;
847 case GL_TEXTURE_BUFFER_FORMAT_ARB
:
848 v
->value_int
= ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
]
849 .CurrentTex
[TEXTURE_BUFFER_INDEX
]->BufferObjectFormat
;
852 /* GL_ARB_sampler_objects */
853 case GL_SAMPLER_BINDING
:
855 struct gl_sampler_object
*samp
=
856 ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
].Sampler
;
859 * The sampler object may have been deleted on another context,
860 * so we try to lookup the sampler object before returning its Name.
862 if (samp
&& _mesa_lookup_samplerobj(ctx
, samp
->Name
)) {
863 v
->value_int
= samp
->Name
;
869 /* GL_ARB_uniform_buffer_object */
870 case GL_UNIFORM_BUFFER_BINDING
:
871 v
->value_int
= ctx
->UniformBuffer
->Name
;
873 /* GL_ARB_timer_query */
875 if (ctx
->Driver
.GetTimestamp
) {
876 v
->value_int64
= ctx
->Driver
.GetTimestamp(ctx
);
879 _mesa_problem(ctx
, "driver doesn't implement GetTimestamp");
886 * Check extra constraints on a struct value_desc descriptor
888 * If a struct value_desc has a non-NULL extra pointer, it means that
889 * there are a number of extra constraints to check or actions to
890 * perform. The extras is just an integer array where each integer
891 * encode different constraints or actions.
893 * \param ctx current context
894 * \param func name of calling glGet*v() function for error reporting
895 * \param d the struct value_desc that has the extra constraints
897 * \return GL_FALSE if all of the constraints were not satisfied,
901 check_extra(struct gl_context
*ctx
, const char *func
, const struct value_desc
*d
)
903 const GLuint version
= ctx
->Version
;
909 for (e
= d
->extra
; *e
!= EXTRA_END
; e
++)
911 case EXTRA_VERSION_30
:
917 case EXTRA_VERSION_31
:
923 case EXTRA_VERSION_32
:
929 case EXTRA_NEW_FRAG_CLAMP
:
930 if (ctx
->NewState
& (_NEW_BUFFERS
| _NEW_FRAG_CLAMP
))
931 _mesa_update_state(ctx
);
934 if (ctx
->API
== API_OPENGLES2
) {
940 if (_mesa_is_gles3(ctx
)) {
946 if (_mesa_is_desktop_gl(ctx
)) {
951 case EXTRA_API_GL_CORE
:
952 if (ctx
->API
== API_OPENGL_CORE
) {
957 case EXTRA_NEW_BUFFERS
:
958 if (ctx
->NewState
& _NEW_BUFFERS
)
959 _mesa_update_state(ctx
);
961 case EXTRA_FLUSH_CURRENT
:
962 FLUSH_CURRENT(ctx
, 0);
964 case EXTRA_VALID_DRAW_BUFFER
:
965 if (d
->pname
- GL_DRAW_BUFFER0_ARB
>= ctx
->Const
.MaxDrawBuffers
) {
966 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(draw buffer %u)",
967 func
, d
->pname
- GL_DRAW_BUFFER0_ARB
);
971 case EXTRA_VALID_TEXTURE_UNIT
:
972 if (ctx
->Texture
.CurrentUnit
>= ctx
->Const
.MaxTextureCoordUnits
) {
973 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(texture %u)",
974 func
, ctx
->Texture
.CurrentUnit
);
978 case EXTRA_VALID_CLIP_DISTANCE
:
979 if (d
->pname
- GL_CLIP_DISTANCE0
>= ctx
->Const
.MaxClipPlanes
) {
980 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(clip distance %u)",
981 func
, d
->pname
- GL_CLIP_DISTANCE0
);
986 if (ctx
->Const
.GLSLVersion
>= 130) {
993 default: /* *e is a offset into the extension struct */
995 if (*(GLboolean
*) ((char *) &ctx
->Extensions
+ *e
))
1000 if (total
> 0 && enabled
== 0) {
1001 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=%s)", func
,
1002 _mesa_lookup_enum_by_nr(d
->pname
));
1009 static const struct value_desc error_value
=
1010 { 0, 0, TYPE_INVALID
, NO_OFFSET
, NO_EXTRA
};
1013 * Find the struct value_desc corresponding to the enum 'pname'.
1015 * We hash the enum value to get an index into the 'table' array,
1016 * which holds the index in the 'values' array of struct value_desc.
1017 * Once we've found the entry, we do the extra checks, if any, then
1018 * look up the value and return a pointer to it.
1020 * If the value has to be computed (for example, it's the result of a
1021 * function call or we need to add 1 to it), we use the tmp 'v' to
1024 * \param func name of glGet*v() func for error reporting
1025 * \param pname the enum value we're looking up
1026 * \param p is were we return the pointer to the value
1027 * \param v a tmp union value variable in the calling glGet*v() function
1029 * \return the struct value_desc corresponding to the enum or a struct
1030 * value_desc of TYPE_INVALID if not found. This lets the calling
1031 * glGet*v() function jump right into a switch statement and
1032 * handle errors there instead of having to check for NULL.
1034 static const struct value_desc
*
1035 find_value(const char *func
, GLenum pname
, void **p
, union value
*v
)
1037 GET_CURRENT_CONTEXT(ctx
);
1038 struct gl_texture_unit
*unit
;
1040 const struct value_desc
*d
;
1044 /* We index into the table_set[] list of per-API hash tables using the API's
1045 * value in the gl_api enum. Since GLES 3 doesn't have an API_OPENGL* enum
1046 * value since it's compatible with GLES2 its entry in table_set[] is at the
1049 STATIC_ASSERT(Elements(table_set
) == API_OPENGL_LAST
+ 2);
1050 if (_mesa_is_gles3(ctx
)) {
1051 api
= API_OPENGL_LAST
+ 1;
1053 mask
= Elements(table(api
)) - 1;
1054 hash
= (pname
* prime_factor
);
1056 int idx
= table(api
)[hash
& mask
];
1058 /* If the enum isn't valid, the hash walk ends with index 0,
1059 * pointing to the first entry of values[] which doesn't hold
1060 * any valid enum. */
1061 if (unlikely(idx
== 0)) {
1062 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=%s)", func
,
1063 _mesa_lookup_enum_by_nr(pname
));
1064 return &error_value
;
1068 if (likely(d
->pname
== pname
))
1074 if (unlikely(d
->extra
&& !check_extra(ctx
, func
, d
)))
1075 return &error_value
;
1077 switch (d
->location
) {
1079 *p
= ((char *) ctx
->DrawBuffer
+ d
->offset
);
1082 *p
= ((char *) ctx
+ d
->offset
);
1085 *p
= ((char *) ctx
->Array
.ArrayObj
+ d
->offset
);
1088 unit
= &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1089 *p
= ((char *) unit
+ d
->offset
);
1092 find_custom_value(ctx
, d
, v
);
1100 /* silence warning */
1101 return &error_value
;
1104 static const int transpose
[] = {
1112 _mesa_GetBooleanv(GLenum pname
, GLboolean
*params
)
1114 const struct value_desc
*d
;
1120 d
= find_value("glGetBooleanv", pname
, &p
, &v
);
1125 params
[0] = INT_TO_BOOLEAN(d
->offset
);
1130 params
[3] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[3]);
1133 params
[2] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[2]);
1136 params
[1] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[1]);
1139 params
[0] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[0]);
1143 params
[0] = FLOAT_TO_BOOLEAN(((GLdouble
*) p
)[0]);
1147 params
[3] = INT_TO_BOOLEAN(((GLint
*) p
)[3]);
1149 params
[2] = INT_TO_BOOLEAN(((GLint
*) p
)[2]);
1152 params
[1] = INT_TO_BOOLEAN(((GLint
*) p
)[1]);
1155 params
[0] = INT_TO_BOOLEAN(((GLint
*) p
)[0]);
1159 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1160 params
[i
] = INT_TO_BOOLEAN(v
.value_int_n
.ints
[i
]);
1164 params
[0] = INT64_TO_BOOLEAN(((GLint64
*) p
)[0]);
1168 params
[0] = ((GLboolean
*) p
)[0];
1172 m
= *(GLmatrix
**) p
;
1173 for (i
= 0; i
< 16; i
++)
1174 params
[i
] = FLOAT_TO_BOOLEAN(m
->m
[i
]);
1178 m
= *(GLmatrix
**) p
;
1179 for (i
= 0; i
< 16; i
++)
1180 params
[i
] = FLOAT_TO_BOOLEAN(m
->m
[transpose
[i
]]);
1191 shift
= d
->type
- TYPE_BIT_0
;
1192 params
[0] = (*(GLbitfield
*) p
>> shift
) & 1;
1198 _mesa_GetFloatv(GLenum pname
, GLfloat
*params
)
1200 const struct value_desc
*d
;
1206 d
= find_value("glGetFloatv", pname
, &p
, &v
);
1211 params
[0] = (GLfloat
) d
->offset
;
1216 params
[3] = ((GLfloat
*) p
)[3];
1219 params
[2] = ((GLfloat
*) p
)[2];
1222 params
[1] = ((GLfloat
*) p
)[1];
1225 params
[0] = ((GLfloat
*) p
)[0];
1229 params
[0] = (GLfloat
) (((GLdouble
*) p
)[0]);
1233 params
[3] = (GLfloat
) (((GLint
*) p
)[3]);
1235 params
[2] = (GLfloat
) (((GLint
*) p
)[2]);
1238 params
[1] = (GLfloat
) (((GLint
*) p
)[1]);
1241 params
[0] = (GLfloat
) (((GLint
*) p
)[0]);
1245 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1246 params
[i
] = INT_TO_FLOAT(v
.value_int_n
.ints
[i
]);
1250 params
[0] = (GLfloat
) (((GLint64
*) p
)[0]);
1254 params
[0] = BOOLEAN_TO_FLOAT(*(GLboolean
*) p
);
1258 m
= *(GLmatrix
**) p
;
1259 for (i
= 0; i
< 16; i
++)
1260 params
[i
] = m
->m
[i
];
1264 m
= *(GLmatrix
**) p
;
1265 for (i
= 0; i
< 16; i
++)
1266 params
[i
] = m
->m
[transpose
[i
]];
1277 shift
= d
->type
- TYPE_BIT_0
;
1278 params
[0] = BOOLEAN_TO_FLOAT((*(GLbitfield
*) p
>> shift
) & 1);
1284 _mesa_GetIntegerv(GLenum pname
, GLint
*params
)
1286 const struct value_desc
*d
;
1292 d
= find_value("glGetIntegerv", pname
, &p
, &v
);
1297 params
[0] = d
->offset
;
1301 params
[3] = IROUND(((GLfloat
*) p
)[3]);
1303 params
[2] = IROUND(((GLfloat
*) p
)[2]);
1305 params
[1] = IROUND(((GLfloat
*) p
)[1]);
1307 params
[0] = IROUND(((GLfloat
*) p
)[0]);
1311 params
[3] = FLOAT_TO_INT(((GLfloat
*) p
)[3]);
1313 params
[2] = FLOAT_TO_INT(((GLfloat
*) p
)[2]);
1315 params
[1] = FLOAT_TO_INT(((GLfloat
*) p
)[1]);
1317 params
[0] = FLOAT_TO_INT(((GLfloat
*) p
)[0]);
1321 params
[0] = FLOAT_TO_INT(((GLdouble
*) p
)[0]);
1325 params
[3] = ((GLint
*) p
)[3];
1327 params
[2] = ((GLint
*) p
)[2];
1330 params
[1] = ((GLint
*) p
)[1];
1333 params
[0] = ((GLint
*) p
)[0];
1337 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1338 params
[i
] = v
.value_int_n
.ints
[i
];
1342 params
[0] = INT64_TO_INT(((GLint64
*) p
)[0]);
1346 params
[0] = BOOLEAN_TO_INT(*(GLboolean
*) p
);
1350 m
= *(GLmatrix
**) p
;
1351 for (i
= 0; i
< 16; i
++)
1352 params
[i
] = FLOAT_TO_INT(m
->m
[i
]);
1356 m
= *(GLmatrix
**) p
;
1357 for (i
= 0; i
< 16; i
++)
1358 params
[i
] = FLOAT_TO_INT(m
->m
[transpose
[i
]]);
1369 shift
= d
->type
- TYPE_BIT_0
;
1370 params
[0] = (*(GLbitfield
*) p
>> shift
) & 1;
1376 _mesa_GetInteger64v(GLenum pname
, GLint64
*params
)
1378 const struct value_desc
*d
;
1384 d
= find_value("glGetInteger64v", pname
, &p
, &v
);
1389 params
[0] = d
->offset
;
1393 params
[3] = IROUND64(((GLfloat
*) p
)[3]);
1395 params
[2] = IROUND64(((GLfloat
*) p
)[2]);
1397 params
[1] = IROUND64(((GLfloat
*) p
)[1]);
1399 params
[0] = IROUND64(((GLfloat
*) p
)[0]);
1403 params
[3] = FLOAT_TO_INT64(((GLfloat
*) p
)[3]);
1405 params
[2] = FLOAT_TO_INT64(((GLfloat
*) p
)[2]);
1407 params
[1] = FLOAT_TO_INT64(((GLfloat
*) p
)[1]);
1409 params
[0] = FLOAT_TO_INT64(((GLfloat
*) p
)[0]);
1413 params
[0] = FLOAT_TO_INT64(((GLdouble
*) p
)[0]);
1417 params
[3] = ((GLint
*) p
)[3];
1419 params
[2] = ((GLint
*) p
)[2];
1422 params
[1] = ((GLint
*) p
)[1];
1425 params
[0] = ((GLint
*) p
)[0];
1429 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1430 params
[i
] = INT_TO_BOOLEAN(v
.value_int_n
.ints
[i
]);
1434 params
[0] = ((GLint64
*) p
)[0];
1438 params
[0] = ((GLboolean
*) p
)[0];
1442 m
= *(GLmatrix
**) p
;
1443 for (i
= 0; i
< 16; i
++)
1444 params
[i
] = FLOAT_TO_INT64(m
->m
[i
]);
1448 m
= *(GLmatrix
**) p
;
1449 for (i
= 0; i
< 16; i
++)
1450 params
[i
] = FLOAT_TO_INT64(m
->m
[transpose
[i
]]);
1461 shift
= d
->type
- TYPE_BIT_0
;
1462 params
[0] = (*(GLbitfield
*) p
>> shift
) & 1;
1468 _mesa_GetDoublev(GLenum pname
, GLdouble
*params
)
1470 const struct value_desc
*d
;
1476 d
= find_value("glGetDoublev", pname
, &p
, &v
);
1481 params
[0] = d
->offset
;
1486 params
[3] = ((GLfloat
*) p
)[3];
1489 params
[2] = ((GLfloat
*) p
)[2];
1492 params
[1] = ((GLfloat
*) p
)[1];
1495 params
[0] = ((GLfloat
*) p
)[0];
1499 params
[0] = ((GLdouble
*) p
)[0];
1503 params
[3] = ((GLint
*) p
)[3];
1505 params
[2] = ((GLint
*) p
)[2];
1508 params
[1] = ((GLint
*) p
)[1];
1511 params
[0] = ((GLint
*) p
)[0];
1515 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1516 params
[i
] = v
.value_int_n
.ints
[i
];
1520 params
[0] = (GLdouble
) (((GLint64
*) p
)[0]);
1524 params
[0] = *(GLboolean
*) p
;
1528 m
= *(GLmatrix
**) p
;
1529 for (i
= 0; i
< 16; i
++)
1530 params
[i
] = m
->m
[i
];
1534 m
= *(GLmatrix
**) p
;
1535 for (i
= 0; i
< 16; i
++)
1536 params
[i
] = m
->m
[transpose
[i
]];
1547 shift
= d
->type
- TYPE_BIT_0
;
1548 params
[0] = (*(GLbitfield
*) p
>> shift
) & 1;
1553 static enum value_type
1554 find_value_indexed(const char *func
, GLenum pname
, GLuint index
, union value
*v
)
1556 GET_CURRENT_CONTEXT(ctx
);
1561 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1563 if (!ctx
->Extensions
.EXT_draw_buffers2
)
1565 v
->value_int
= (ctx
->Color
.BlendEnabled
>> index
) & 1;
1570 case GL_BLEND_SRC_RGB
:
1571 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1573 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1575 v
->value_int
= ctx
->Color
.Blend
[index
].SrcRGB
;
1577 case GL_BLEND_SRC_ALPHA
:
1578 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1580 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1582 v
->value_int
= ctx
->Color
.Blend
[index
].SrcA
;
1586 case GL_BLEND_DST_RGB
:
1587 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1589 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1591 v
->value_int
= ctx
->Color
.Blend
[index
].DstRGB
;
1593 case GL_BLEND_DST_ALPHA
:
1594 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1596 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1598 v
->value_int
= ctx
->Color
.Blend
[index
].DstA
;
1600 case GL_BLEND_EQUATION_RGB
:
1601 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1603 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1605 v
->value_int
= ctx
->Color
.Blend
[index
].EquationRGB
;
1607 case GL_BLEND_EQUATION_ALPHA
:
1608 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1610 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1612 v
->value_int
= ctx
->Color
.Blend
[index
].EquationA
;
1615 case GL_COLOR_WRITEMASK
:
1616 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1618 if (!ctx
->Extensions
.EXT_draw_buffers2
)
1620 v
->value_int_4
[0] = ctx
->Color
.ColorMask
[index
][RCOMP
] ? 1 : 0;
1621 v
->value_int_4
[1] = ctx
->Color
.ColorMask
[index
][GCOMP
] ? 1 : 0;
1622 v
->value_int_4
[2] = ctx
->Color
.ColorMask
[index
][BCOMP
] ? 1 : 0;
1623 v
->value_int_4
[3] = ctx
->Color
.ColorMask
[index
][ACOMP
] ? 1 : 0;
1626 case GL_TRANSFORM_FEEDBACK_BUFFER_START
:
1627 if (index
>= ctx
->Const
.MaxTransformFeedbackBuffers
)
1629 if (!ctx
->Extensions
.EXT_transform_feedback
)
1631 v
->value_int64
= ctx
->TransformFeedback
.CurrentObject
->Offset
[index
];
1634 case GL_TRANSFORM_FEEDBACK_BUFFER_SIZE
:
1635 if (index
>= ctx
->Const
.MaxTransformFeedbackBuffers
)
1637 if (!ctx
->Extensions
.EXT_transform_feedback
)
1640 = ctx
->TransformFeedback
.CurrentObject
->RequestedSize
[index
];
1643 case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING
:
1644 if (index
>= ctx
->Const
.MaxTransformFeedbackBuffers
)
1646 if (!ctx
->Extensions
.EXT_transform_feedback
)
1648 v
->value_int
= ctx
->TransformFeedback
.CurrentObject
->BufferNames
[index
];
1651 case GL_UNIFORM_BUFFER_BINDING
:
1652 if (index
>= ctx
->Const
.MaxUniformBufferBindings
)
1654 if (!ctx
->Extensions
.ARB_uniform_buffer_object
)
1656 v
->value_int
= ctx
->UniformBufferBindings
[index
].BufferObject
->Name
;
1659 case GL_UNIFORM_BUFFER_START
:
1660 if (index
>= ctx
->Const
.MaxUniformBufferBindings
)
1662 if (!ctx
->Extensions
.ARB_uniform_buffer_object
)
1664 v
->value_int
= ctx
->UniformBufferBindings
[index
].Offset
;
1667 case GL_UNIFORM_BUFFER_SIZE
:
1668 if (index
>= ctx
->Const
.MaxUniformBufferBindings
)
1670 if (!ctx
->Extensions
.ARB_uniform_buffer_object
)
1672 v
->value_int
= ctx
->UniformBufferBindings
[index
].Size
;
1675 /* ARB_texture_multisample / GL3.2 */
1676 case GL_SAMPLE_MASK_VALUE
:
1679 if (!ctx
->Extensions
.ARB_texture_multisample
)
1681 v
->value_int
= ctx
->Multisample
.SampleMaskValue
;
1686 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=%s)", func
,
1687 _mesa_lookup_enum_by_nr(pname
));
1688 return TYPE_INVALID
;
1690 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(pname=%s)", func
,
1691 _mesa_lookup_enum_by_nr(pname
));
1692 return TYPE_INVALID
;
1696 _mesa_GetBooleani_v( GLenum pname
, GLuint index
, GLboolean
*params
)
1699 enum value_type type
=
1700 find_value_indexed("glGetBooleani_v", pname
, index
, &v
);
1704 params
[0] = INT_TO_BOOLEAN(v
.value_int
);
1707 params
[0] = INT_TO_BOOLEAN(v
.value_int_4
[0]);
1708 params
[1] = INT_TO_BOOLEAN(v
.value_int_4
[1]);
1709 params
[2] = INT_TO_BOOLEAN(v
.value_int_4
[2]);
1710 params
[3] = INT_TO_BOOLEAN(v
.value_int_4
[3]);
1713 params
[0] = INT64_TO_BOOLEAN(v
.value_int
);
1716 ; /* nothing - GL error was recorded */
1721 _mesa_GetIntegeri_v( GLenum pname
, GLuint index
, GLint
*params
)
1724 enum value_type type
=
1725 find_value_indexed("glGetIntegeri_v", pname
, index
, &v
);
1729 params
[0] = v
.value_int
;
1732 params
[0] = v
.value_int_4
[0];
1733 params
[1] = v
.value_int_4
[1];
1734 params
[2] = v
.value_int_4
[2];
1735 params
[3] = v
.value_int_4
[3];
1738 params
[0] = INT64_TO_INT(v
.value_int
);
1741 ; /* nothing - GL error was recorded */
1746 _mesa_GetInteger64i_v( GLenum pname
, GLuint index
, GLint64
*params
)
1749 enum value_type type
=
1750 find_value_indexed("glGetInteger64i_v", pname
, index
, &v
);
1754 params
[0] = v
.value_int
;
1757 params
[0] = v
.value_int_4
[0];
1758 params
[1] = v
.value_int_4
[1];
1759 params
[2] = v
.value_int_4
[2];
1760 params
[3] = v
.value_int_4
[3];
1763 params
[0] = v
.value_int
;
1766 ; /* nothing - GL error was recorded */
1771 _mesa_GetFixedv(GLenum pname
, GLfixed
*params
)
1773 const struct value_desc
*d
;
1779 d
= find_value("glGetDoublev", pname
, &p
, &v
);
1784 params
[0] = INT_TO_FIXED(d
->offset
);
1789 params
[3] = FLOAT_TO_FIXED(((GLfloat
*) p
)[3]);
1792 params
[2] = FLOAT_TO_FIXED(((GLfloat
*) p
)[2]);
1795 params
[1] = FLOAT_TO_FIXED(((GLfloat
*) p
)[1]);
1798 params
[0] = FLOAT_TO_FIXED(((GLfloat
*) p
)[0]);
1802 params
[0] = FLOAT_TO_FIXED(((GLdouble
*) p
)[0]);
1806 params
[3] = INT_TO_FIXED(((GLint
*) p
)[3]);
1808 params
[2] = INT_TO_FIXED(((GLint
*) p
)[2]);
1811 params
[1] = INT_TO_FIXED(((GLint
*) p
)[1]);
1814 params
[0] = INT_TO_FIXED(((GLint
*) p
)[0]);
1818 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1819 params
[i
] = INT_TO_FIXED(v
.value_int_n
.ints
[i
]);
1823 params
[0] = ((GLint64
*) p
)[0];
1827 params
[0] = BOOLEAN_TO_FIXED(((GLboolean
*) p
)[0]);
1831 m
= *(GLmatrix
**) p
;
1832 for (i
= 0; i
< 16; i
++)
1833 params
[i
] = FLOAT_TO_FIXED(m
->m
[i
]);
1837 m
= *(GLmatrix
**) p
;
1838 for (i
= 0; i
< 16; i
++)
1839 params
[i
] = FLOAT_TO_FIXED(m
->m
[transpose
[i
]]);
1850 shift
= d
->type
- TYPE_BIT_0
;
1851 params
[0] = BOOLEAN_TO_FIXED((*(GLbitfield
*) p
>> shift
) & 1);