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"
35 #include "texcompress.h"
36 #include "framebuffer.h"
37 #include "samplerobj.h"
39 /* This is a table driven implemetation of the glGet*v() functions.
40 * The basic idea is that most getters just look up an int somewhere
41 * in struct gl_context and then convert it to a bool or float according to
42 * which of glGetIntegerv() glGetBooleanv() etc is being called.
43 * Instead of generating code to do this, we can just record the enum
44 * value and the offset into struct gl_context in an array of structs. Then
45 * in glGet*(), we lookup the struct for the enum in question, and use
46 * the offset to get the int we need.
48 * Sometimes we need to look up a float, a boolean, a bit in a
49 * bitfield, a matrix or other types instead, so we need to track the
50 * type of the value in struct gl_context. And sometimes the value isn't in
51 * struct gl_context but in the drawbuffer, the array object, current texture
52 * unit, or maybe it's a computed value. So we need to also track
53 * where or how to find the value. Finally, we sometimes need to
54 * check that one of a number of extensions are enabled, the GL
55 * version or flush or call _mesa_update_state(). This is done by
56 * attaching optional extra information to the value description
57 * struct, it's sort of like an array of opcodes that describe extra
60 * Putting all this together we end up with struct value_desc below,
61 * and with a couple of macros to help, the table of struct value_desc
62 * is about as concise as the specification in the old python script.
65 #define FLOAT_TO_BOOLEAN(X) ( (X) ? GL_TRUE : GL_FALSE )
66 #define FLOAT_TO_FIXED(F) ( ((F) * 65536.0f > INT_MAX) ? INT_MAX : \
67 ((F) * 65536.0f < INT_MIN) ? INT_MIN : \
68 (GLint) ((F) * 65536.0f) )
70 #define INT_TO_BOOLEAN(I) ( (I) ? GL_TRUE : GL_FALSE )
71 #define INT_TO_FIXED(I) ( ((I) > SHRT_MAX) ? INT_MAX : \
72 ((I) < SHRT_MIN) ? INT_MIN : \
73 (GLint) ((I) * 65536) )
75 #define INT64_TO_BOOLEAN(I) ( (I) ? GL_TRUE : GL_FALSE )
76 #define INT64_TO_INT(I) ( (GLint)((I > INT_MAX) ? INT_MAX : ((I < INT_MIN) ? INT_MIN : (I))) )
78 #define BOOLEAN_TO_INT(B) ( (GLint) (B) )
79 #define BOOLEAN_TO_INT64(B) ( (GLint64) (B) )
80 #define BOOLEAN_TO_FLOAT(B) ( (B) ? 1.0F : 0.0F )
81 #define BOOLEAN_TO_FIXED(B) ( (GLint) ((B) ? 1 : 0) << 16 )
83 #define ENUM_TO_INT64(E) ( (GLint64) (E) )
84 #define ENUM_TO_FIXED(E) (E)
119 enum value_location
{
137 EXTRA_NEW_FRAG_CLAMP
,
138 EXTRA_VALID_DRAW_BUFFER
,
139 EXTRA_VALID_TEXTURE_UNIT
,
140 EXTRA_VALID_CLIP_DISTANCE
,
145 #define NO_EXTRA NULL
150 GLubyte location
; /**< enum value_location */
151 GLubyte type
; /**< enum value_type */
158 GLfloat value_float_4
[4];
159 GLmatrix
*value_matrix
;
161 GLint value_int_4
[4];
165 /* Sigh, see GL_COMPRESSED_TEXTURE_FORMATS_ARB handling */
169 GLboolean value_bool
;
172 #define BUFFER_FIELD(field, type) \
173 LOC_BUFFER, type, offsetof(struct gl_framebuffer, field)
174 #define CONTEXT_FIELD(field, type) \
175 LOC_CONTEXT, type, offsetof(struct gl_context, field)
176 #define ARRAY_FIELD(field, type) \
177 LOC_ARRAY, type, offsetof(struct gl_array_object, field)
178 #undef CONST /* already defined through windows.h */
179 #define CONST(value) \
180 LOC_CONTEXT, TYPE_CONST, value
182 #define BUFFER_INT(field) BUFFER_FIELD(field, TYPE_INT)
183 #define BUFFER_ENUM(field) BUFFER_FIELD(field, TYPE_ENUM)
184 #define BUFFER_BOOL(field) BUFFER_FIELD(field, TYPE_BOOLEAN)
186 #define CONTEXT_INT(field) CONTEXT_FIELD(field, TYPE_INT)
187 #define CONTEXT_INT2(field) CONTEXT_FIELD(field, TYPE_INT_2)
188 #define CONTEXT_INT64(field) CONTEXT_FIELD(field, TYPE_INT64)
189 #define CONTEXT_ENUM(field) CONTEXT_FIELD(field, TYPE_ENUM)
190 #define CONTEXT_ENUM2(field) CONTEXT_FIELD(field, TYPE_ENUM_2)
191 #define CONTEXT_BOOL(field) CONTEXT_FIELD(field, TYPE_BOOLEAN)
192 #define CONTEXT_BIT0(field) CONTEXT_FIELD(field, TYPE_BIT_0)
193 #define CONTEXT_BIT1(field) CONTEXT_FIELD(field, TYPE_BIT_1)
194 #define CONTEXT_BIT2(field) CONTEXT_FIELD(field, TYPE_BIT_2)
195 #define CONTEXT_BIT3(field) CONTEXT_FIELD(field, TYPE_BIT_3)
196 #define CONTEXT_BIT4(field) CONTEXT_FIELD(field, TYPE_BIT_4)
197 #define CONTEXT_BIT5(field) CONTEXT_FIELD(field, TYPE_BIT_5)
198 #define CONTEXT_BIT6(field) CONTEXT_FIELD(field, TYPE_BIT_6)
199 #define CONTEXT_BIT7(field) CONTEXT_FIELD(field, TYPE_BIT_7)
200 #define CONTEXT_FLOAT(field) CONTEXT_FIELD(field, TYPE_FLOAT)
201 #define CONTEXT_FLOAT2(field) CONTEXT_FIELD(field, TYPE_FLOAT_2)
202 #define CONTEXT_FLOAT3(field) CONTEXT_FIELD(field, TYPE_FLOAT_3)
203 #define CONTEXT_FLOAT4(field) CONTEXT_FIELD(field, TYPE_FLOAT_4)
204 #define CONTEXT_MATRIX(field) CONTEXT_FIELD(field, TYPE_MATRIX)
205 #define CONTEXT_MATRIX_T(field) CONTEXT_FIELD(field, TYPE_MATRIX_T)
207 #define ARRAY_INT(field) ARRAY_FIELD(field, TYPE_INT)
208 #define ARRAY_ENUM(field) ARRAY_FIELD(field, TYPE_ENUM)
209 #define ARRAY_BOOL(field) ARRAY_FIELD(field, TYPE_BOOLEAN)
212 offsetof(struct gl_extensions, f)
214 #define EXTRA_EXT(e) \
215 static const int extra_##e[] = { \
219 #define EXTRA_EXT2(e1, e2) \
220 static const int extra_##e1##_##e2[] = { \
221 EXT(e1), EXT(e2), EXTRA_END \
224 /* The 'extra' mechanism is a way to specify extra checks (such as
225 * extensions or specific gl versions) or actions (flush current, new
226 * buffers) that we need to do before looking up an enum. We need to
227 * declare them all up front so we can refer to them in the value_desc
230 static const int extra_new_buffers
[] = {
235 static const int extra_new_frag_clamp
[] = {
236 EXTRA_NEW_FRAG_CLAMP
,
240 static const int extra_valid_draw_buffer
[] = {
241 EXTRA_VALID_DRAW_BUFFER
,
245 static const int extra_valid_texture_unit
[] = {
246 EXTRA_VALID_TEXTURE_UNIT
,
250 static const int extra_valid_clip_distance
[] = {
251 EXTRA_VALID_CLIP_DISTANCE
,
255 static const int extra_flush_current_valid_texture_unit
[] = {
257 EXTRA_VALID_TEXTURE_UNIT
,
261 static const int extra_flush_current
[] = {
266 static const int extra_EXT_secondary_color_flush_current
[] = {
267 EXT(EXT_secondary_color
),
272 static const int extra_EXT_fog_coord_flush_current
[] = {
278 static const int extra_EXT_texture_integer
[] = {
279 EXT(EXT_texture_integer
),
283 static const int extra_EXT_texture_integer_and_new_buffers
[] = {
284 EXT(EXT_texture_integer
),
289 static const int extra_GLSL_130
[] = {
294 static const int extra_texture_buffer_object
[] = {
297 EXT(ARB_texture_buffer_object
),
301 static const int extra_ARB_transform_feedback2_api_es3
[] = {
302 EXT(ARB_transform_feedback2
),
307 static const int extra_ARB_uniform_buffer_object_and_geometry_shader
[] = {
308 EXT(ARB_uniform_buffer_object
),
309 EXT(ARB_geometry_shader4
),
313 static const int extra_ARB_ES2_compatibility_api_es2
[] = {
314 EXT(ARB_ES2_compatibility
),
319 static const int extra_ARB_ES3_compatibility_api_es3
[] = {
320 EXT(ARB_ES3_compatibility
),
325 static const int extra_EXT_framebuffer_sRGB_and_new_buffers
[] = {
326 EXT(EXT_framebuffer_sRGB
),
331 EXTRA_EXT(ARB_texture_cube_map
);
332 EXTRA_EXT(MESA_texture_array
);
333 EXTRA_EXT2(EXT_secondary_color
, ARB_vertex_program
);
334 EXTRA_EXT(EXT_secondary_color
);
335 EXTRA_EXT(EXT_fog_coord
);
336 EXTRA_EXT(NV_fog_distance
);
337 EXTRA_EXT(EXT_texture_filter_anisotropic
);
338 EXTRA_EXT(NV_point_sprite
);
339 EXTRA_EXT(NV_texture_rectangle
);
340 EXTRA_EXT(EXT_stencil_two_side
);
341 EXTRA_EXT(EXT_depth_bounds_test
);
342 EXTRA_EXT(ARB_depth_clamp
);
343 EXTRA_EXT(ATI_fragment_shader
);
344 EXTRA_EXT(EXT_framebuffer_blit
);
345 EXTRA_EXT(ARB_shader_objects
);
346 EXTRA_EXT(EXT_provoking_vertex
);
347 EXTRA_EXT(ARB_fragment_shader
);
348 EXTRA_EXT(ARB_fragment_program
);
349 EXTRA_EXT2(ARB_framebuffer_object
, EXT_framebuffer_multisample
);
350 EXTRA_EXT(EXT_framebuffer_object
);
351 EXTRA_EXT(ARB_seamless_cube_map
);
353 EXTRA_EXT(ARB_vertex_shader
);
354 EXTRA_EXT(EXT_transform_feedback
);
355 EXTRA_EXT(ARB_transform_feedback3
);
356 EXTRA_EXT(EXT_pixel_buffer_object
);
357 EXTRA_EXT(ARB_vertex_program
);
358 EXTRA_EXT2(NV_point_sprite
, ARB_point_sprite
);
359 EXTRA_EXT2(ARB_vertex_program
, ARB_fragment_program
);
360 EXTRA_EXT(ARB_geometry_shader4
);
361 EXTRA_EXT(ARB_color_buffer_float
);
362 EXTRA_EXT(EXT_framebuffer_sRGB
);
363 EXTRA_EXT(OES_EGL_image_external
);
364 EXTRA_EXT(ARB_blend_func_extended
);
365 EXTRA_EXT(ARB_uniform_buffer_object
);
366 EXTRA_EXT(ARB_timer_query
);
367 EXTRA_EXT(ARB_map_buffer_alignment
);
368 EXTRA_EXT(ARB_texture_cube_map_array
);
369 EXTRA_EXT(ARB_texture_buffer_range
);
370 EXTRA_EXT(ARB_texture_multisample
);
373 extra_ARB_color_buffer_float_or_glcore
[] = {
374 EXT(ARB_color_buffer_float
),
380 extra_NV_primitive_restart
[] = {
381 EXT(NV_primitive_restart
),
385 static const int extra_version_30
[] = { EXTRA_VERSION_30
, EXTRA_END
};
386 static const int extra_version_31
[] = { EXTRA_VERSION_31
, EXTRA_END
};
387 static const int extra_version_32
[] = { EXTRA_VERSION_32
, EXTRA_END
};
389 static const int extra_gl30_es3
[] = {
396 extra_ARB_vertex_program_api_es2
[] = {
397 EXT(ARB_vertex_program
),
402 /* The ReadBuffer get token is valid under either full GL or under
403 * GLES2 if the NV_read_buffer extension is available. */
405 extra_NV_read_buffer_api_gl
[] = {
411 static const int extra_core_ARB_color_buffer_float_and_new_buffers
[] = {
413 EXT(ARB_color_buffer_float
),
418 /* This is the big table describing all the enums we accept in
419 * glGet*v(). The table is partitioned into six parts: enums
420 * understood by all GL APIs (OpenGL, GLES and GLES2), enums shared
421 * between OpenGL and GLES, enums exclusive to GLES, etc for the
422 * remaining combinations. To look up the enums valid in a given API
423 * we will use a hash table specific to that API. These tables are in
424 * turn generated at build time and included through get_hash.h.
427 #include "get_hash.h"
429 /* All we need now is a way to look up the value struct from the enum.
430 * The code generated by gcc for the old generated big switch
431 * statement is a big, balanced, open coded if/else tree, essentially
432 * an unrolled binary search. It would be natural to sort the new
433 * enum table and use bsearch(), but we will use a read-only hash
434 * table instead. bsearch() has a nice guaranteed worst case
435 * performance, but we're also guaranteed to hit that worst case
436 * (log2(n) iterations) for about half the enums. Instead, using an
437 * open addressing hash table, we can find the enum on the first try
438 * for 80% of the enums, 1 collision for 10% and never more than 5
439 * collisions for any enum (typical numbers). And the code is very
440 * simple, even though it feels a little magic. */
444 print_table_stats(int api
)
446 int i
, j
, collisions
[11], count
, hash
, mask
;
447 const struct value_desc
*d
;
448 const char *api_names
[] = {
449 [API_OPENGL_COMPAT
] = "GL",
450 [API_OPENGL_CORE
] = "GL_CORE",
451 [API_OPENGLES
] = "GLES",
452 [API_OPENGLES2
] = "GLES2",
454 const char *api_name
;
456 api_name
= api
< Elements(api_names
) ? api_names
[api
] : "N/A";
458 mask
= Elements(table(api
)) - 1;
459 memset(collisions
, 0, sizeof collisions
);
461 for (i
= 0; i
< Elements(table(api
)); i
++) {
465 d
= &values
[table(api
)[i
]];
466 hash
= (d
->pname
* prime_factor
);
469 if (values
[table(api
)[hash
& mask
]].pname
== d
->pname
)
481 printf("number of enums for %s: %d (total %ld)\n",
482 api_name
, count
, Elements(values
));
483 for (i
= 0; i
< Elements(collisions
) - 1; i
++)
484 if (collisions
[i
] > 0)
485 printf(" %d enums with %d %scollisions\n",
486 collisions
[i
], i
, i
== 10 ? "or more " : "");
491 * Initialize the enum hash for a given API
493 * This is called from one_time_init() to insert the enum values that
494 * are valid for the API in question into the enum hash table.
496 * \param the current context, for determining the API in question
498 void _mesa_init_get_hash(struct gl_context
*ctx
)
506 * Handle irregular enums
508 * Some values don't conform to the "well-known type at context
509 * pointer + offset" pattern, so we have this function to catch all
510 * the corner cases. Typically, it's a computed value or a one-off
511 * pointer to a custom struct or something.
513 * In this case we can't return a pointer to the value, so we'll have
514 * to use the temporary variable 'v' declared back in the calling
515 * glGet*v() function to store the result.
517 * \param ctx the current context
518 * \param d the struct value_desc that describes the enum
519 * \param v pointer to the tmp declared in the calling glGet*v() function
522 find_custom_value(struct gl_context
*ctx
, const struct value_desc
*d
, union value
*v
)
524 struct gl_buffer_object
**buffer_obj
;
525 struct gl_client_array
*array
;
529 case GL_MAJOR_VERSION
:
530 v
->value_int
= ctx
->Version
/ 10;
532 case GL_MINOR_VERSION
:
533 v
->value_int
= ctx
->Version
% 10;
539 case GL_TEXTURE_1D_ARRAY_EXT
:
540 case GL_TEXTURE_2D_ARRAY_EXT
:
541 case GL_TEXTURE_CUBE_MAP_ARB
:
542 case GL_TEXTURE_RECTANGLE_NV
:
543 case GL_TEXTURE_EXTERNAL_OES
:
544 v
->value_bool
= _mesa_IsEnabled(d
->pname
);
547 case GL_LINE_STIPPLE_PATTERN
:
548 /* This is the only GLushort, special case it here by promoting
549 * to an int rather than introducing a new type. */
550 v
->value_int
= ctx
->Line
.StipplePattern
;
553 case GL_CURRENT_RASTER_TEXTURE_COORDS
:
554 unit
= ctx
->Texture
.CurrentUnit
;
555 v
->value_float_4
[0] = ctx
->Current
.RasterTexCoords
[unit
][0];
556 v
->value_float_4
[1] = ctx
->Current
.RasterTexCoords
[unit
][1];
557 v
->value_float_4
[2] = ctx
->Current
.RasterTexCoords
[unit
][2];
558 v
->value_float_4
[3] = ctx
->Current
.RasterTexCoords
[unit
][3];
561 case GL_CURRENT_TEXTURE_COORDS
:
562 unit
= ctx
->Texture
.CurrentUnit
;
563 v
->value_float_4
[0] = ctx
->Current
.Attrib
[VERT_ATTRIB_TEX0
+ unit
][0];
564 v
->value_float_4
[1] = ctx
->Current
.Attrib
[VERT_ATTRIB_TEX0
+ unit
][1];
565 v
->value_float_4
[2] = ctx
->Current
.Attrib
[VERT_ATTRIB_TEX0
+ unit
][2];
566 v
->value_float_4
[3] = ctx
->Current
.Attrib
[VERT_ATTRIB_TEX0
+ unit
][3];
569 case GL_COLOR_WRITEMASK
:
570 v
->value_int_4
[0] = ctx
->Color
.ColorMask
[0][RCOMP
] ? 1 : 0;
571 v
->value_int_4
[1] = ctx
->Color
.ColorMask
[0][GCOMP
] ? 1 : 0;
572 v
->value_int_4
[2] = ctx
->Color
.ColorMask
[0][BCOMP
] ? 1 : 0;
573 v
->value_int_4
[3] = ctx
->Color
.ColorMask
[0][ACOMP
] ? 1 : 0;
577 v
->value_bool
= ctx
->Current
.Attrib
[VERT_ATTRIB_EDGEFLAG
][0] == 1.0;
581 v
->value_enum
= ctx
->ReadBuffer
->ColorReadBuffer
;
584 case GL_MAP2_GRID_DOMAIN
:
585 v
->value_float_4
[0] = ctx
->Eval
.MapGrid2u1
;
586 v
->value_float_4
[1] = ctx
->Eval
.MapGrid2u2
;
587 v
->value_float_4
[2] = ctx
->Eval
.MapGrid2v1
;
588 v
->value_float_4
[3] = ctx
->Eval
.MapGrid2v2
;
591 case GL_TEXTURE_STACK_DEPTH
:
592 unit
= ctx
->Texture
.CurrentUnit
;
593 v
->value_int
= ctx
->TextureMatrixStack
[unit
].Depth
+ 1;
595 case GL_TEXTURE_MATRIX
:
596 unit
= ctx
->Texture
.CurrentUnit
;
597 v
->value_matrix
= ctx
->TextureMatrixStack
[unit
].Top
;
600 case GL_TEXTURE_COORD_ARRAY
:
601 case GL_TEXTURE_COORD_ARRAY_SIZE
:
602 case GL_TEXTURE_COORD_ARRAY_TYPE
:
603 case GL_TEXTURE_COORD_ARRAY_STRIDE
:
604 array
= &ctx
->Array
.ArrayObj
->VertexAttrib
[VERT_ATTRIB_TEX(ctx
->Array
.ActiveTexture
)];
605 v
->value_int
= *(GLuint
*) ((char *) array
+ d
->offset
);
608 case GL_ACTIVE_TEXTURE_ARB
:
609 v
->value_int
= GL_TEXTURE0_ARB
+ ctx
->Texture
.CurrentUnit
;
611 case GL_CLIENT_ACTIVE_TEXTURE_ARB
:
612 v
->value_int
= GL_TEXTURE0_ARB
+ ctx
->Array
.ActiveTexture
;
615 case GL_MODELVIEW_STACK_DEPTH
:
616 case GL_PROJECTION_STACK_DEPTH
:
617 v
->value_int
= *(GLint
*) ((char *) ctx
+ d
->offset
) + 1;
620 case GL_MAX_TEXTURE_SIZE
:
621 case GL_MAX_3D_TEXTURE_SIZE
:
622 case GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB
:
623 p
= (GLuint
*) ((char *) ctx
+ d
->offset
);
624 v
->value_int
= 1 << (*p
- 1);
628 v
->value_int_4
[0] = ctx
->Scissor
.X
;
629 v
->value_int_4
[1] = ctx
->Scissor
.Y
;
630 v
->value_int_4
[2] = ctx
->Scissor
.Width
;
631 v
->value_int_4
[3] = ctx
->Scissor
.Height
;
636 ctx
->ListState
.CurrentList
? ctx
->ListState
.CurrentList
->Name
: 0;
639 if (!ctx
->CompileFlag
)
641 else if (ctx
->ExecuteFlag
)
642 v
->value_enum
= GL_COMPILE_AND_EXECUTE
;
644 v
->value_enum
= GL_COMPILE
;
648 v
->value_int_4
[0] = ctx
->Viewport
.X
;
649 v
->value_int_4
[1] = ctx
->Viewport
.Y
;
650 v
->value_int_4
[2] = ctx
->Viewport
.Width
;
651 v
->value_int_4
[3] = ctx
->Viewport
.Height
;
654 case GL_ACTIVE_STENCIL_FACE_EXT
:
655 v
->value_enum
= ctx
->Stencil
.ActiveFace
? GL_BACK
: GL_FRONT
;
658 case GL_STENCIL_FAIL
:
659 v
->value_enum
= ctx
->Stencil
.FailFunc
[ctx
->Stencil
.ActiveFace
];
661 case GL_STENCIL_FUNC
:
662 v
->value_enum
= ctx
->Stencil
.Function
[ctx
->Stencil
.ActiveFace
];
664 case GL_STENCIL_PASS_DEPTH_FAIL
:
665 v
->value_enum
= ctx
->Stencil
.ZFailFunc
[ctx
->Stencil
.ActiveFace
];
667 case GL_STENCIL_PASS_DEPTH_PASS
:
668 v
->value_enum
= ctx
->Stencil
.ZPassFunc
[ctx
->Stencil
.ActiveFace
];
671 v
->value_int
= ctx
->Stencil
.Ref
[ctx
->Stencil
.ActiveFace
];
673 case GL_STENCIL_VALUE_MASK
:
674 v
->value_int
= ctx
->Stencil
.ValueMask
[ctx
->Stencil
.ActiveFace
];
676 case GL_STENCIL_WRITEMASK
:
677 v
->value_int
= ctx
->Stencil
.WriteMask
[ctx
->Stencil
.ActiveFace
];
680 case GL_NUM_EXTENSIONS
:
681 v
->value_int
= _mesa_get_extension_count(ctx
);
684 case GL_IMPLEMENTATION_COLOR_READ_TYPE_OES
:
685 v
->value_int
= _mesa_get_color_read_type(ctx
);
687 case GL_IMPLEMENTATION_COLOR_READ_FORMAT_OES
:
688 v
->value_int
= _mesa_get_color_read_format(ctx
);
691 case GL_CURRENT_MATRIX_STACK_DEPTH_ARB
:
692 v
->value_int
= ctx
->CurrentStack
->Depth
+ 1;
694 case GL_CURRENT_MATRIX_ARB
:
695 case GL_TRANSPOSE_CURRENT_MATRIX_ARB
:
696 v
->value_matrix
= ctx
->CurrentStack
->Top
;
699 case GL_NUM_COMPRESSED_TEXTURE_FORMATS_ARB
:
700 v
->value_int
= _mesa_get_compressed_formats(ctx
, NULL
);
702 case GL_COMPRESSED_TEXTURE_FORMATS_ARB
:
704 _mesa_get_compressed_formats(ctx
, v
->value_int_n
.ints
);
705 ASSERT(v
->value_int_n
.n
<= 100);
708 case GL_MAX_VARYING_FLOATS_ARB
:
709 v
->value_int
= ctx
->Const
.MaxVarying
* 4;
712 /* Various object names */
714 case GL_TEXTURE_BINDING_1D
:
715 case GL_TEXTURE_BINDING_2D
:
716 case GL_TEXTURE_BINDING_3D
:
717 case GL_TEXTURE_BINDING_1D_ARRAY_EXT
:
718 case GL_TEXTURE_BINDING_2D_ARRAY_EXT
:
719 case GL_TEXTURE_BINDING_CUBE_MAP_ARB
:
720 case GL_TEXTURE_BINDING_RECTANGLE_NV
:
721 case GL_TEXTURE_BINDING_EXTERNAL_OES
:
722 case GL_TEXTURE_BINDING_CUBE_MAP_ARRAY
:
723 case GL_TEXTURE_BINDING_2D_MULTISAMPLE
:
724 case GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY
:
725 unit
= ctx
->Texture
.CurrentUnit
;
727 ctx
->Texture
.Unit
[unit
].CurrentTex
[d
->offset
]->Name
;
730 /* GL_ARB_vertex_buffer_object */
731 case GL_VERTEX_ARRAY_BUFFER_BINDING_ARB
:
732 case GL_NORMAL_ARRAY_BUFFER_BINDING_ARB
:
733 case GL_COLOR_ARRAY_BUFFER_BINDING_ARB
:
734 case GL_INDEX_ARRAY_BUFFER_BINDING_ARB
:
735 case GL_EDGE_FLAG_ARRAY_BUFFER_BINDING_ARB
:
736 case GL_SECONDARY_COLOR_ARRAY_BUFFER_BINDING_ARB
:
737 case GL_FOG_COORDINATE_ARRAY_BUFFER_BINDING_ARB
:
738 buffer_obj
= (struct gl_buffer_object
**)
739 ((char *) ctx
->Array
.ArrayObj
+ d
->offset
);
740 v
->value_int
= (*buffer_obj
)->Name
;
742 case GL_ARRAY_BUFFER_BINDING_ARB
:
743 v
->value_int
= ctx
->Array
.ArrayBufferObj
->Name
;
745 case GL_TEXTURE_COORD_ARRAY_BUFFER_BINDING_ARB
:
747 ctx
->Array
.ArrayObj
->VertexAttrib
[VERT_ATTRIB_TEX(ctx
->Array
.ActiveTexture
)].BufferObj
->Name
;
749 case GL_ELEMENT_ARRAY_BUFFER_BINDING_ARB
:
750 v
->value_int
= ctx
->Array
.ArrayObj
->ElementArrayBufferObj
->Name
;
753 /* ARB_copy_buffer */
754 case GL_COPY_READ_BUFFER
:
755 v
->value_int
= ctx
->CopyReadBuffer
->Name
;
757 case GL_COPY_WRITE_BUFFER
:
758 v
->value_int
= ctx
->CopyWriteBuffer
->Name
;
761 case GL_PIXEL_PACK_BUFFER_BINDING_EXT
:
762 v
->value_int
= ctx
->Pack
.BufferObj
->Name
;
764 case GL_PIXEL_UNPACK_BUFFER_BINDING_EXT
:
765 v
->value_int
= ctx
->Unpack
.BufferObj
->Name
;
767 case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING
:
768 v
->value_int
= ctx
->TransformFeedback
.CurrentBuffer
->Name
;
770 case GL_TRANSFORM_FEEDBACK_BUFFER_PAUSED
:
771 v
->value_int
= ctx
->TransformFeedback
.CurrentObject
->Paused
;
773 case GL_TRANSFORM_FEEDBACK_BUFFER_ACTIVE
:
774 v
->value_int
= ctx
->TransformFeedback
.CurrentObject
->Active
;
776 case GL_TRANSFORM_FEEDBACK_BINDING
:
777 v
->value_int
= ctx
->TransformFeedback
.CurrentObject
->Name
;
779 case GL_CURRENT_PROGRAM
:
781 ctx
->Shader
.ActiveProgram
? ctx
->Shader
.ActiveProgram
->Name
: 0;
783 case GL_READ_FRAMEBUFFER_BINDING_EXT
:
784 v
->value_int
= ctx
->ReadBuffer
->Name
;
786 case GL_RENDERBUFFER_BINDING_EXT
:
788 ctx
->CurrentRenderbuffer
? ctx
->CurrentRenderbuffer
->Name
: 0;
790 case GL_POINT_SIZE_ARRAY_BUFFER_BINDING_OES
:
791 v
->value_int
= ctx
->Array
.ArrayObj
->VertexAttrib
[VERT_ATTRIB_POINT_SIZE
].BufferObj
->Name
;
795 if (_mesa_get_clamp_fragment_color(ctx
))
796 COPY_4FV(v
->value_float_4
, ctx
->Fog
.Color
);
798 COPY_4FV(v
->value_float_4
, ctx
->Fog
.ColorUnclamped
);
800 case GL_COLOR_CLEAR_VALUE
:
801 if (_mesa_get_clamp_fragment_color(ctx
)) {
802 v
->value_float_4
[0] = CLAMP(ctx
->Color
.ClearColor
.f
[0], 0.0F
, 1.0F
);
803 v
->value_float_4
[1] = CLAMP(ctx
->Color
.ClearColor
.f
[1], 0.0F
, 1.0F
);
804 v
->value_float_4
[2] = CLAMP(ctx
->Color
.ClearColor
.f
[2], 0.0F
, 1.0F
);
805 v
->value_float_4
[3] = CLAMP(ctx
->Color
.ClearColor
.f
[3], 0.0F
, 1.0F
);
807 COPY_4FV(v
->value_float_4
, ctx
->Color
.ClearColor
.f
);
809 case GL_BLEND_COLOR_EXT
:
810 if (_mesa_get_clamp_fragment_color(ctx
))
811 COPY_4FV(v
->value_float_4
, ctx
->Color
.BlendColor
);
813 COPY_4FV(v
->value_float_4
, ctx
->Color
.BlendColorUnclamped
);
815 case GL_ALPHA_TEST_REF
:
816 if (_mesa_get_clamp_fragment_color(ctx
))
817 v
->value_float
= ctx
->Color
.AlphaRef
;
819 v
->value_float
= ctx
->Color
.AlphaRefUnclamped
;
821 case GL_MAX_VERTEX_UNIFORM_VECTORS
:
822 v
->value_int
= ctx
->Const
.VertexProgram
.MaxUniformComponents
/ 4;
825 case GL_MAX_FRAGMENT_UNIFORM_VECTORS
:
826 v
->value_int
= ctx
->Const
.FragmentProgram
.MaxUniformComponents
/ 4;
829 /* GL_ARB_texture_buffer_object */
830 case GL_TEXTURE_BUFFER_ARB
:
831 v
->value_int
= ctx
->Texture
.BufferObject
->Name
;
833 case GL_TEXTURE_BINDING_BUFFER_ARB
:
834 unit
= ctx
->Texture
.CurrentUnit
;
836 ctx
->Texture
.Unit
[unit
].CurrentTex
[TEXTURE_BUFFER_INDEX
]->Name
;
838 case GL_TEXTURE_BUFFER_DATA_STORE_BINDING_ARB
:
840 struct gl_buffer_object
*buf
=
841 ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
]
842 .CurrentTex
[TEXTURE_BUFFER_INDEX
]->BufferObject
;
843 v
->value_int
= buf
? buf
->Name
: 0;
846 case GL_TEXTURE_BUFFER_FORMAT_ARB
:
847 v
->value_int
= ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
]
848 .CurrentTex
[TEXTURE_BUFFER_INDEX
]->BufferObjectFormat
;
851 /* GL_ARB_sampler_objects */
852 case GL_SAMPLER_BINDING
:
854 struct gl_sampler_object
*samp
=
855 ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
].Sampler
;
858 * The sampler object may have been deleted on another context,
859 * so we try to lookup the sampler object before returning its Name.
861 if (samp
&& _mesa_lookup_samplerobj(ctx
, samp
->Name
)) {
862 v
->value_int
= samp
->Name
;
868 /* GL_ARB_uniform_buffer_object */
869 case GL_UNIFORM_BUFFER_BINDING
:
870 v
->value_int
= ctx
->UniformBuffer
->Name
;
872 /* GL_ARB_timer_query */
874 if (ctx
->Driver
.GetTimestamp
) {
875 v
->value_int64
= ctx
->Driver
.GetTimestamp(ctx
);
878 _mesa_problem(ctx
, "driver doesn't implement GetTimestamp");
885 * Check extra constraints on a struct value_desc descriptor
887 * If a struct value_desc has a non-NULL extra pointer, it means that
888 * there are a number of extra constraints to check or actions to
889 * perform. The extras is just an integer array where each integer
890 * encode different constraints or actions.
892 * \param ctx current context
893 * \param func name of calling glGet*v() function for error reporting
894 * \param d the struct value_desc that has the extra constraints
896 * \return GL_FALSE if all of the constraints were not satisfied,
900 check_extra(struct gl_context
*ctx
, const char *func
, const struct value_desc
*d
)
902 const GLuint version
= ctx
->Version
;
908 for (e
= d
->extra
; *e
!= EXTRA_END
; e
++)
910 case EXTRA_VERSION_30
:
916 case EXTRA_VERSION_31
:
922 case EXTRA_VERSION_32
:
928 case EXTRA_NEW_FRAG_CLAMP
:
929 if (ctx
->NewState
& (_NEW_BUFFERS
| _NEW_FRAG_CLAMP
))
930 _mesa_update_state(ctx
);
933 if (ctx
->API
== API_OPENGLES2
) {
939 if (_mesa_is_gles3(ctx
)) {
945 if (_mesa_is_desktop_gl(ctx
)) {
950 case EXTRA_API_GL_CORE
:
951 if (ctx
->API
== API_OPENGL_CORE
) {
956 case EXTRA_NEW_BUFFERS
:
957 if (ctx
->NewState
& _NEW_BUFFERS
)
958 _mesa_update_state(ctx
);
960 case EXTRA_FLUSH_CURRENT
:
961 FLUSH_CURRENT(ctx
, 0);
963 case EXTRA_VALID_DRAW_BUFFER
:
964 if (d
->pname
- GL_DRAW_BUFFER0_ARB
>= ctx
->Const
.MaxDrawBuffers
) {
965 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(draw buffer %u)",
966 func
, d
->pname
- GL_DRAW_BUFFER0_ARB
);
970 case EXTRA_VALID_TEXTURE_UNIT
:
971 if (ctx
->Texture
.CurrentUnit
>= ctx
->Const
.MaxTextureCoordUnits
) {
972 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(texture %u)",
973 func
, ctx
->Texture
.CurrentUnit
);
977 case EXTRA_VALID_CLIP_DISTANCE
:
978 if (d
->pname
- GL_CLIP_DISTANCE0
>= ctx
->Const
.MaxClipPlanes
) {
979 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(clip distance %u)",
980 func
, d
->pname
- GL_CLIP_DISTANCE0
);
985 if (ctx
->Const
.GLSLVersion
>= 130) {
992 default: /* *e is a offset into the extension struct */
994 if (*(GLboolean
*) ((char *) &ctx
->Extensions
+ *e
))
999 if (total
> 0 && enabled
== 0) {
1000 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=%s)", func
,
1001 _mesa_lookup_enum_by_nr(d
->pname
));
1008 static const struct value_desc error_value
=
1009 { 0, 0, TYPE_INVALID
, NO_OFFSET
, NO_EXTRA
};
1012 * Find the struct value_desc corresponding to the enum 'pname'.
1014 * We hash the enum value to get an index into the 'table' array,
1015 * which holds the index in the 'values' array of struct value_desc.
1016 * Once we've found the entry, we do the extra checks, if any, then
1017 * look up the value and return a pointer to it.
1019 * If the value has to be computed (for example, it's the result of a
1020 * function call or we need to add 1 to it), we use the tmp 'v' to
1023 * \param func name of glGet*v() func for error reporting
1024 * \param pname the enum value we're looking up
1025 * \param p is were we return the pointer to the value
1026 * \param v a tmp union value variable in the calling glGet*v() function
1028 * \return the struct value_desc corresponding to the enum or a struct
1029 * value_desc of TYPE_INVALID if not found. This lets the calling
1030 * glGet*v() function jump right into a switch statement and
1031 * handle errors there instead of having to check for NULL.
1033 static const struct value_desc
*
1034 find_value(const char *func
, GLenum pname
, void **p
, union value
*v
)
1036 GET_CURRENT_CONTEXT(ctx
);
1037 struct gl_texture_unit
*unit
;
1039 const struct value_desc
*d
;
1043 /* We index into the table_set[] list of per-API hash tables using the API's
1044 * value in the gl_api enum. Since GLES 3 doesn't have an API_OPENGL* enum
1045 * value since it's compatible with GLES2 its entry in table_set[] is at the
1048 STATIC_ASSERT(Elements(table_set
) == API_OPENGL_LAST
+ 2);
1049 if (_mesa_is_gles3(ctx
)) {
1050 api
= API_OPENGL_LAST
+ 1;
1052 mask
= Elements(table(api
)) - 1;
1053 hash
= (pname
* prime_factor
);
1055 int idx
= table(api
)[hash
& mask
];
1057 /* If the enum isn't valid, the hash walk ends with index 0,
1058 * pointing to the first entry of values[] which doesn't hold
1059 * any valid enum. */
1060 if (unlikely(idx
== 0)) {
1061 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=%s)", func
,
1062 _mesa_lookup_enum_by_nr(pname
));
1063 return &error_value
;
1067 if (likely(d
->pname
== pname
))
1073 if (unlikely(d
->extra
&& !check_extra(ctx
, func
, d
)))
1074 return &error_value
;
1076 switch (d
->location
) {
1078 *p
= ((char *) ctx
->DrawBuffer
+ d
->offset
);
1081 *p
= ((char *) ctx
+ d
->offset
);
1084 *p
= ((char *) ctx
->Array
.ArrayObj
+ d
->offset
);
1087 unit
= &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1088 *p
= ((char *) unit
+ d
->offset
);
1091 find_custom_value(ctx
, d
, v
);
1099 /* silence warning */
1100 return &error_value
;
1103 static const int transpose
[] = {
1111 _mesa_GetBooleanv(GLenum pname
, GLboolean
*params
)
1113 const struct value_desc
*d
;
1119 d
= find_value("glGetBooleanv", pname
, &p
, &v
);
1124 params
[0] = INT_TO_BOOLEAN(d
->offset
);
1129 params
[3] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[3]);
1132 params
[2] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[2]);
1135 params
[1] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[1]);
1138 params
[0] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[0]);
1142 params
[0] = FLOAT_TO_BOOLEAN(((GLdouble
*) p
)[0]);
1146 params
[3] = INT_TO_BOOLEAN(((GLint
*) p
)[3]);
1148 params
[2] = INT_TO_BOOLEAN(((GLint
*) p
)[2]);
1151 params
[1] = INT_TO_BOOLEAN(((GLint
*) p
)[1]);
1154 params
[0] = INT_TO_BOOLEAN(((GLint
*) p
)[0]);
1158 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1159 params
[i
] = INT_TO_BOOLEAN(v
.value_int_n
.ints
[i
]);
1163 params
[0] = INT64_TO_BOOLEAN(((GLint64
*) p
)[0]);
1167 params
[0] = ((GLboolean
*) p
)[0];
1171 m
= *(GLmatrix
**) p
;
1172 for (i
= 0; i
< 16; i
++)
1173 params
[i
] = FLOAT_TO_BOOLEAN(m
->m
[i
]);
1177 m
= *(GLmatrix
**) p
;
1178 for (i
= 0; i
< 16; i
++)
1179 params
[i
] = FLOAT_TO_BOOLEAN(m
->m
[transpose
[i
]]);
1190 shift
= d
->type
- TYPE_BIT_0
;
1191 params
[0] = (*(GLbitfield
*) p
>> shift
) & 1;
1197 _mesa_GetFloatv(GLenum pname
, GLfloat
*params
)
1199 const struct value_desc
*d
;
1205 d
= find_value("glGetFloatv", pname
, &p
, &v
);
1210 params
[0] = (GLfloat
) d
->offset
;
1215 params
[3] = ((GLfloat
*) p
)[3];
1218 params
[2] = ((GLfloat
*) p
)[2];
1221 params
[1] = ((GLfloat
*) p
)[1];
1224 params
[0] = ((GLfloat
*) p
)[0];
1228 params
[0] = (GLfloat
) (((GLdouble
*) p
)[0]);
1232 params
[3] = (GLfloat
) (((GLint
*) p
)[3]);
1234 params
[2] = (GLfloat
) (((GLint
*) p
)[2]);
1237 params
[1] = (GLfloat
) (((GLint
*) p
)[1]);
1240 params
[0] = (GLfloat
) (((GLint
*) p
)[0]);
1244 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1245 params
[i
] = INT_TO_FLOAT(v
.value_int_n
.ints
[i
]);
1249 params
[0] = (GLfloat
) (((GLint64
*) p
)[0]);
1253 params
[0] = BOOLEAN_TO_FLOAT(*(GLboolean
*) p
);
1257 m
= *(GLmatrix
**) p
;
1258 for (i
= 0; i
< 16; i
++)
1259 params
[i
] = m
->m
[i
];
1263 m
= *(GLmatrix
**) p
;
1264 for (i
= 0; i
< 16; i
++)
1265 params
[i
] = m
->m
[transpose
[i
]];
1276 shift
= d
->type
- TYPE_BIT_0
;
1277 params
[0] = BOOLEAN_TO_FLOAT((*(GLbitfield
*) p
>> shift
) & 1);
1283 _mesa_GetIntegerv(GLenum pname
, GLint
*params
)
1285 const struct value_desc
*d
;
1291 d
= find_value("glGetIntegerv", pname
, &p
, &v
);
1296 params
[0] = d
->offset
;
1300 params
[3] = IROUND(((GLfloat
*) p
)[3]);
1302 params
[2] = IROUND(((GLfloat
*) p
)[2]);
1304 params
[1] = IROUND(((GLfloat
*) p
)[1]);
1306 params
[0] = IROUND(((GLfloat
*) p
)[0]);
1310 params
[3] = FLOAT_TO_INT(((GLfloat
*) p
)[3]);
1312 params
[2] = FLOAT_TO_INT(((GLfloat
*) p
)[2]);
1314 params
[1] = FLOAT_TO_INT(((GLfloat
*) p
)[1]);
1316 params
[0] = FLOAT_TO_INT(((GLfloat
*) p
)[0]);
1320 params
[0] = FLOAT_TO_INT(((GLdouble
*) p
)[0]);
1324 params
[3] = ((GLint
*) p
)[3];
1326 params
[2] = ((GLint
*) p
)[2];
1329 params
[1] = ((GLint
*) p
)[1];
1332 params
[0] = ((GLint
*) p
)[0];
1336 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1337 params
[i
] = v
.value_int_n
.ints
[i
];
1341 params
[0] = INT64_TO_INT(((GLint64
*) p
)[0]);
1345 params
[0] = BOOLEAN_TO_INT(*(GLboolean
*) p
);
1349 m
= *(GLmatrix
**) p
;
1350 for (i
= 0; i
< 16; i
++)
1351 params
[i
] = FLOAT_TO_INT(m
->m
[i
]);
1355 m
= *(GLmatrix
**) p
;
1356 for (i
= 0; i
< 16; i
++)
1357 params
[i
] = FLOAT_TO_INT(m
->m
[transpose
[i
]]);
1368 shift
= d
->type
- TYPE_BIT_0
;
1369 params
[0] = (*(GLbitfield
*) p
>> shift
) & 1;
1375 _mesa_GetInteger64v(GLenum pname
, GLint64
*params
)
1377 const struct value_desc
*d
;
1383 d
= find_value("glGetInteger64v", pname
, &p
, &v
);
1388 params
[0] = d
->offset
;
1392 params
[3] = IROUND64(((GLfloat
*) p
)[3]);
1394 params
[2] = IROUND64(((GLfloat
*) p
)[2]);
1396 params
[1] = IROUND64(((GLfloat
*) p
)[1]);
1398 params
[0] = IROUND64(((GLfloat
*) p
)[0]);
1402 params
[3] = FLOAT_TO_INT64(((GLfloat
*) p
)[3]);
1404 params
[2] = FLOAT_TO_INT64(((GLfloat
*) p
)[2]);
1406 params
[1] = FLOAT_TO_INT64(((GLfloat
*) p
)[1]);
1408 params
[0] = FLOAT_TO_INT64(((GLfloat
*) p
)[0]);
1412 params
[0] = FLOAT_TO_INT64(((GLdouble
*) p
)[0]);
1416 params
[3] = ((GLint
*) p
)[3];
1418 params
[2] = ((GLint
*) p
)[2];
1421 params
[1] = ((GLint
*) p
)[1];
1424 params
[0] = ((GLint
*) p
)[0];
1428 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1429 params
[i
] = INT_TO_BOOLEAN(v
.value_int_n
.ints
[i
]);
1433 params
[0] = ((GLint64
*) p
)[0];
1437 params
[0] = ((GLboolean
*) p
)[0];
1441 m
= *(GLmatrix
**) p
;
1442 for (i
= 0; i
< 16; i
++)
1443 params
[i
] = FLOAT_TO_INT64(m
->m
[i
]);
1447 m
= *(GLmatrix
**) p
;
1448 for (i
= 0; i
< 16; i
++)
1449 params
[i
] = FLOAT_TO_INT64(m
->m
[transpose
[i
]]);
1460 shift
= d
->type
- TYPE_BIT_0
;
1461 params
[0] = (*(GLbitfield
*) p
>> shift
) & 1;
1467 _mesa_GetDoublev(GLenum pname
, GLdouble
*params
)
1469 const struct value_desc
*d
;
1475 d
= find_value("glGetDoublev", pname
, &p
, &v
);
1480 params
[0] = d
->offset
;
1485 params
[3] = ((GLfloat
*) p
)[3];
1488 params
[2] = ((GLfloat
*) p
)[2];
1491 params
[1] = ((GLfloat
*) p
)[1];
1494 params
[0] = ((GLfloat
*) p
)[0];
1498 params
[0] = ((GLdouble
*) p
)[0];
1502 params
[3] = ((GLint
*) p
)[3];
1504 params
[2] = ((GLint
*) p
)[2];
1507 params
[1] = ((GLint
*) p
)[1];
1510 params
[0] = ((GLint
*) p
)[0];
1514 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1515 params
[i
] = v
.value_int_n
.ints
[i
];
1519 params
[0] = (GLdouble
) (((GLint64
*) p
)[0]);
1523 params
[0] = *(GLboolean
*) p
;
1527 m
= *(GLmatrix
**) p
;
1528 for (i
= 0; i
< 16; i
++)
1529 params
[i
] = m
->m
[i
];
1533 m
= *(GLmatrix
**) p
;
1534 for (i
= 0; i
< 16; i
++)
1535 params
[i
] = m
->m
[transpose
[i
]];
1546 shift
= d
->type
- TYPE_BIT_0
;
1547 params
[0] = (*(GLbitfield
*) p
>> shift
) & 1;
1552 static enum value_type
1553 find_value_indexed(const char *func
, GLenum pname
, GLuint index
, union value
*v
)
1555 GET_CURRENT_CONTEXT(ctx
);
1560 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1562 if (!ctx
->Extensions
.EXT_draw_buffers2
)
1564 v
->value_int
= (ctx
->Color
.BlendEnabled
>> index
) & 1;
1569 case GL_BLEND_SRC_RGB
:
1570 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1572 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1574 v
->value_int
= ctx
->Color
.Blend
[index
].SrcRGB
;
1576 case GL_BLEND_SRC_ALPHA
:
1577 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1579 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1581 v
->value_int
= ctx
->Color
.Blend
[index
].SrcA
;
1585 case GL_BLEND_DST_RGB
:
1586 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1588 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1590 v
->value_int
= ctx
->Color
.Blend
[index
].DstRGB
;
1592 case GL_BLEND_DST_ALPHA
:
1593 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1595 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1597 v
->value_int
= ctx
->Color
.Blend
[index
].DstA
;
1599 case GL_BLEND_EQUATION_RGB
:
1600 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1602 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1604 v
->value_int
= ctx
->Color
.Blend
[index
].EquationRGB
;
1606 case GL_BLEND_EQUATION_ALPHA
:
1607 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1609 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1611 v
->value_int
= ctx
->Color
.Blend
[index
].EquationA
;
1614 case GL_COLOR_WRITEMASK
:
1615 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1617 if (!ctx
->Extensions
.EXT_draw_buffers2
)
1619 v
->value_int_4
[0] = ctx
->Color
.ColorMask
[index
][RCOMP
] ? 1 : 0;
1620 v
->value_int_4
[1] = ctx
->Color
.ColorMask
[index
][GCOMP
] ? 1 : 0;
1621 v
->value_int_4
[2] = ctx
->Color
.ColorMask
[index
][BCOMP
] ? 1 : 0;
1622 v
->value_int_4
[3] = ctx
->Color
.ColorMask
[index
][ACOMP
] ? 1 : 0;
1625 case GL_TRANSFORM_FEEDBACK_BUFFER_START
:
1626 if (index
>= ctx
->Const
.MaxTransformFeedbackBuffers
)
1628 if (!ctx
->Extensions
.EXT_transform_feedback
)
1630 v
->value_int64
= ctx
->TransformFeedback
.CurrentObject
->Offset
[index
];
1633 case GL_TRANSFORM_FEEDBACK_BUFFER_SIZE
:
1634 if (index
>= ctx
->Const
.MaxTransformFeedbackBuffers
)
1636 if (!ctx
->Extensions
.EXT_transform_feedback
)
1639 = ctx
->TransformFeedback
.CurrentObject
->RequestedSize
[index
];
1642 case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING
:
1643 if (index
>= ctx
->Const
.MaxTransformFeedbackBuffers
)
1645 if (!ctx
->Extensions
.EXT_transform_feedback
)
1647 v
->value_int
= ctx
->TransformFeedback
.CurrentObject
->BufferNames
[index
];
1650 case GL_UNIFORM_BUFFER_BINDING
:
1651 if (index
>= ctx
->Const
.MaxUniformBufferBindings
)
1653 if (!ctx
->Extensions
.ARB_uniform_buffer_object
)
1655 v
->value_int
= ctx
->UniformBufferBindings
[index
].BufferObject
->Name
;
1658 case GL_UNIFORM_BUFFER_START
:
1659 if (index
>= ctx
->Const
.MaxUniformBufferBindings
)
1661 if (!ctx
->Extensions
.ARB_uniform_buffer_object
)
1663 v
->value_int
= ctx
->UniformBufferBindings
[index
].Offset
;
1666 case GL_UNIFORM_BUFFER_SIZE
:
1667 if (index
>= ctx
->Const
.MaxUniformBufferBindings
)
1669 if (!ctx
->Extensions
.ARB_uniform_buffer_object
)
1671 v
->value_int
= ctx
->UniformBufferBindings
[index
].Size
;
1674 /* ARB_texture_multisample / GL3.2 */
1675 case GL_SAMPLE_MASK_VALUE
:
1678 if (!ctx
->Extensions
.ARB_texture_multisample
)
1680 v
->value_int
= ctx
->Multisample
.SampleMaskValue
;
1685 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=%s)", func
,
1686 _mesa_lookup_enum_by_nr(pname
));
1687 return TYPE_INVALID
;
1689 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(pname=%s)", func
,
1690 _mesa_lookup_enum_by_nr(pname
));
1691 return TYPE_INVALID
;
1695 _mesa_GetBooleani_v( GLenum pname
, GLuint index
, GLboolean
*params
)
1698 enum value_type type
=
1699 find_value_indexed("glGetBooleani_v", pname
, index
, &v
);
1703 params
[0] = INT_TO_BOOLEAN(v
.value_int
);
1706 params
[0] = INT_TO_BOOLEAN(v
.value_int_4
[0]);
1707 params
[1] = INT_TO_BOOLEAN(v
.value_int_4
[1]);
1708 params
[2] = INT_TO_BOOLEAN(v
.value_int_4
[2]);
1709 params
[3] = INT_TO_BOOLEAN(v
.value_int_4
[3]);
1712 params
[0] = INT64_TO_BOOLEAN(v
.value_int
);
1715 ; /* nothing - GL error was recorded */
1720 _mesa_GetIntegeri_v( GLenum pname
, GLuint index
, GLint
*params
)
1723 enum value_type type
=
1724 find_value_indexed("glGetIntegeri_v", pname
, index
, &v
);
1728 params
[0] = v
.value_int
;
1731 params
[0] = v
.value_int_4
[0];
1732 params
[1] = v
.value_int_4
[1];
1733 params
[2] = v
.value_int_4
[2];
1734 params
[3] = v
.value_int_4
[3];
1737 params
[0] = INT64_TO_INT(v
.value_int
);
1740 ; /* nothing - GL error was recorded */
1745 _mesa_GetInteger64i_v( GLenum pname
, GLuint index
, GLint64
*params
)
1748 enum value_type type
=
1749 find_value_indexed("glGetInteger64i_v", pname
, index
, &v
);
1753 params
[0] = v
.value_int
;
1756 params
[0] = v
.value_int_4
[0];
1757 params
[1] = v
.value_int_4
[1];
1758 params
[2] = v
.value_int_4
[2];
1759 params
[3] = v
.value_int_4
[3];
1762 params
[0] = v
.value_int
;
1765 ; /* nothing - GL error was recorded */
1770 _mesa_GetFixedv(GLenum pname
, GLfixed
*params
)
1772 const struct value_desc
*d
;
1778 d
= find_value("glGetDoublev", pname
, &p
, &v
);
1783 params
[0] = INT_TO_FIXED(d
->offset
);
1788 params
[3] = FLOAT_TO_FIXED(((GLfloat
*) p
)[3]);
1791 params
[2] = FLOAT_TO_FIXED(((GLfloat
*) p
)[2]);
1794 params
[1] = FLOAT_TO_FIXED(((GLfloat
*) p
)[1]);
1797 params
[0] = FLOAT_TO_FIXED(((GLfloat
*) p
)[0]);
1801 params
[0] = FLOAT_TO_FIXED(((GLdouble
*) p
)[0]);
1805 params
[3] = INT_TO_FIXED(((GLint
*) p
)[3]);
1807 params
[2] = INT_TO_FIXED(((GLint
*) p
)[2]);
1810 params
[1] = INT_TO_FIXED(((GLint
*) p
)[1]);
1813 params
[0] = INT_TO_FIXED(((GLint
*) p
)[0]);
1817 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1818 params
[i
] = INT_TO_FIXED(v
.value_int_n
.ints
[i
]);
1822 params
[0] = ((GLint64
*) p
)[0];
1826 params
[0] = BOOLEAN_TO_FIXED(((GLboolean
*) p
)[0]);
1830 m
= *(GLmatrix
**) p
;
1831 for (i
= 0; i
< 16; i
++)
1832 params
[i
] = FLOAT_TO_FIXED(m
->m
[i
]);
1836 m
= *(GLmatrix
**) p
;
1837 for (i
= 0; i
< 16; i
++)
1838 params
[i
] = FLOAT_TO_FIXED(m
->m
[transpose
[i
]]);
1849 shift
= d
->type
- TYPE_BIT_0
;
1850 params
[0] = BOOLEAN_TO_FIXED((*(GLbitfield
*) p
>> shift
) & 1);