2 * Copyright (C) 2010 Brian Paul All Rights Reserved.
3 * Copyright (C) 2010 Intel Corporation
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
12 * The above copyright notice and this permission notice shall be included
13 * in all copies or substantial portions of the Software.
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
16 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
19 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
20 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
21 * OTHER DEALINGS IN THE SOFTWARE.
23 * Author: Kristian Høgsberg <krh@bitplanet.net>
31 #include "extensions.h"
36 #include "texcompress.h"
37 #include "framebuffer.h"
38 #include "samplerobj.h"
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
,
147 #define NO_EXTRA NULL
152 GLubyte location
; /**< enum value_location */
153 GLubyte type
; /**< enum value_type */
160 GLfloat value_float_4
[4];
161 GLmatrix
*value_matrix
;
163 GLint value_int_4
[4];
167 /* Sigh, see GL_COMPRESSED_TEXTURE_FORMATS_ARB handling */
171 GLboolean value_bool
;
174 #define BUFFER_FIELD(field, type) \
175 LOC_BUFFER, type, offsetof(struct gl_framebuffer, field)
176 #define CONTEXT_FIELD(field, type) \
177 LOC_CONTEXT, type, offsetof(struct gl_context, field)
178 #define ARRAY_FIELD(field, type) \
179 LOC_ARRAY, type, offsetof(struct gl_array_object, field)
180 #undef CONST /* already defined through windows.h */
181 #define CONST(value) \
182 LOC_CONTEXT, TYPE_CONST, value
184 #define BUFFER_INT(field) BUFFER_FIELD(field, TYPE_INT)
185 #define BUFFER_ENUM(field) BUFFER_FIELD(field, TYPE_ENUM)
186 #define BUFFER_BOOL(field) BUFFER_FIELD(field, TYPE_BOOLEAN)
188 #define CONTEXT_INT(field) CONTEXT_FIELD(field, TYPE_INT)
189 #define CONTEXT_INT2(field) CONTEXT_FIELD(field, TYPE_INT_2)
190 #define CONTEXT_INT64(field) CONTEXT_FIELD(field, TYPE_INT64)
191 #define CONTEXT_ENUM(field) CONTEXT_FIELD(field, TYPE_ENUM)
192 #define CONTEXT_ENUM2(field) CONTEXT_FIELD(field, TYPE_ENUM_2)
193 #define CONTEXT_BOOL(field) CONTEXT_FIELD(field, TYPE_BOOLEAN)
194 #define CONTEXT_BIT0(field) CONTEXT_FIELD(field, TYPE_BIT_0)
195 #define CONTEXT_BIT1(field) CONTEXT_FIELD(field, TYPE_BIT_1)
196 #define CONTEXT_BIT2(field) CONTEXT_FIELD(field, TYPE_BIT_2)
197 #define CONTEXT_BIT3(field) CONTEXT_FIELD(field, TYPE_BIT_3)
198 #define CONTEXT_BIT4(field) CONTEXT_FIELD(field, TYPE_BIT_4)
199 #define CONTEXT_BIT5(field) CONTEXT_FIELD(field, TYPE_BIT_5)
200 #define CONTEXT_BIT6(field) CONTEXT_FIELD(field, TYPE_BIT_6)
201 #define CONTEXT_BIT7(field) CONTEXT_FIELD(field, TYPE_BIT_7)
202 #define CONTEXT_FLOAT(field) CONTEXT_FIELD(field, TYPE_FLOAT)
203 #define CONTEXT_FLOAT2(field) CONTEXT_FIELD(field, TYPE_FLOAT_2)
204 #define CONTEXT_FLOAT3(field) CONTEXT_FIELD(field, TYPE_FLOAT_3)
205 #define CONTEXT_FLOAT4(field) CONTEXT_FIELD(field, TYPE_FLOAT_4)
206 #define CONTEXT_MATRIX(field) CONTEXT_FIELD(field, TYPE_MATRIX)
207 #define CONTEXT_MATRIX_T(field) CONTEXT_FIELD(field, TYPE_MATRIX_T)
209 #define ARRAY_INT(field) ARRAY_FIELD(field, TYPE_INT)
210 #define ARRAY_ENUM(field) ARRAY_FIELD(field, TYPE_ENUM)
211 #define ARRAY_BOOL(field) ARRAY_FIELD(field, TYPE_BOOLEAN)
214 offsetof(struct gl_extensions, f)
216 #define EXTRA_EXT(e) \
217 static const int extra_##e[] = { \
221 #define EXTRA_EXT2(e1, e2) \
222 static const int extra_##e1##_##e2[] = { \
223 EXT(e1), EXT(e2), EXTRA_END \
226 /* The 'extra' mechanism is a way to specify extra checks (such as
227 * extensions or specific gl versions) or actions (flush current, new
228 * buffers) that we need to do before looking up an enum. We need to
229 * declare them all up front so we can refer to them in the value_desc
232 * Each EXTRA_ will be executed. For EXTRA_* enums of extensions and API
233 * versions, listing multiple ones in an array means an error will be thrown
234 * only if none of them are available. If you need to check for "AND"
235 * behavior, you would need to make a custom EXTRA_ enum.
238 static const int extra_new_buffers
[] = {
243 static const int extra_new_frag_clamp
[] = {
244 EXTRA_NEW_FRAG_CLAMP
,
248 static const int extra_valid_draw_buffer
[] = {
249 EXTRA_VALID_DRAW_BUFFER
,
253 static const int extra_valid_texture_unit
[] = {
254 EXTRA_VALID_TEXTURE_UNIT
,
258 static const int extra_valid_clip_distance
[] = {
259 EXTRA_VALID_CLIP_DISTANCE
,
263 static const int extra_flush_current_valid_texture_unit
[] = {
265 EXTRA_VALID_TEXTURE_UNIT
,
269 static const int extra_flush_current
[] = {
274 static const int extra_EXT_secondary_color_flush_current
[] = {
275 EXT(EXT_secondary_color
),
280 static const int extra_EXT_fog_coord_flush_current
[] = {
286 static const int extra_EXT_texture_integer
[] = {
287 EXT(EXT_texture_integer
),
291 static const int extra_EXT_texture_integer_and_new_buffers
[] = {
292 EXT(EXT_texture_integer
),
297 static const int extra_GLSL_130
[] = {
302 static const int extra_texture_buffer_object
[] = {
305 EXT(ARB_texture_buffer_object
),
309 static const int extra_ARB_transform_feedback2_api_es3
[] = {
310 EXT(ARB_transform_feedback2
),
315 static const int extra_ARB_uniform_buffer_object_and_geometry_shader
[] = {
320 static const int extra_ARB_ES2_compatibility_api_es2
[] = {
321 EXT(ARB_ES2_compatibility
),
326 static const int extra_ARB_ES3_compatibility_api_es3
[] = {
327 EXT(ARB_ES3_compatibility
),
332 static const int extra_EXT_framebuffer_sRGB_and_new_buffers
[] = {
333 EXT(EXT_framebuffer_sRGB
),
338 EXTRA_EXT(ARB_texture_cube_map
);
339 EXTRA_EXT(MESA_texture_array
);
340 EXTRA_EXT2(EXT_secondary_color
, ARB_vertex_program
);
341 EXTRA_EXT(EXT_secondary_color
);
342 EXTRA_EXT(EXT_fog_coord
);
343 EXTRA_EXT(NV_fog_distance
);
344 EXTRA_EXT(EXT_texture_filter_anisotropic
);
345 EXTRA_EXT(NV_point_sprite
);
346 EXTRA_EXT(NV_texture_rectangle
);
347 EXTRA_EXT(EXT_stencil_two_side
);
348 EXTRA_EXT(EXT_depth_bounds_test
);
349 EXTRA_EXT(ARB_depth_clamp
);
350 EXTRA_EXT(ATI_fragment_shader
);
351 EXTRA_EXT(EXT_framebuffer_blit
);
352 EXTRA_EXT(ARB_shader_objects
);
353 EXTRA_EXT(EXT_provoking_vertex
);
354 EXTRA_EXT(ARB_fragment_shader
);
355 EXTRA_EXT(ARB_fragment_program
);
356 EXTRA_EXT2(ARB_framebuffer_object
, EXT_framebuffer_multisample
);
357 EXTRA_EXT(EXT_framebuffer_object
);
358 EXTRA_EXT(ARB_seamless_cube_map
);
360 EXTRA_EXT(ARB_vertex_shader
);
361 EXTRA_EXT(EXT_transform_feedback
);
362 EXTRA_EXT(ARB_transform_feedback3
);
363 EXTRA_EXT(EXT_pixel_buffer_object
);
364 EXTRA_EXT(ARB_vertex_program
);
365 EXTRA_EXT2(NV_point_sprite
, ARB_point_sprite
);
366 EXTRA_EXT2(ARB_vertex_program
, ARB_fragment_program
);
367 EXTRA_EXT(ARB_geometry_shader4
);
368 EXTRA_EXT(ARB_color_buffer_float
);
369 EXTRA_EXT(EXT_framebuffer_sRGB
);
370 EXTRA_EXT(OES_EGL_image_external
);
371 EXTRA_EXT(ARB_blend_func_extended
);
372 EXTRA_EXT(ARB_uniform_buffer_object
);
373 EXTRA_EXT(ARB_timer_query
);
374 EXTRA_EXT(ARB_map_buffer_alignment
);
375 EXTRA_EXT(ARB_texture_cube_map_array
);
376 EXTRA_EXT(ARB_texture_buffer_range
);
377 EXTRA_EXT(ARB_texture_multisample
);
380 extra_ARB_color_buffer_float_or_glcore
[] = {
381 EXT(ARB_color_buffer_float
),
387 extra_NV_primitive_restart
[] = {
388 EXT(NV_primitive_restart
),
392 static const int extra_version_30
[] = { EXTRA_VERSION_30
, EXTRA_END
};
393 static const int extra_version_31
[] = { EXTRA_VERSION_31
, EXTRA_END
};
394 static const int extra_version_32
[] = { EXTRA_VERSION_32
, EXTRA_END
};
396 static const int extra_gl30_es3
[] = {
403 extra_ARB_vertex_program_api_es2
[] = {
404 EXT(ARB_vertex_program
),
409 /* The ReadBuffer get token is valid under either full GL or under
410 * GLES2 if the NV_read_buffer extension is available. */
412 extra_NV_read_buffer_api_gl
[] = {
418 static const int extra_core_ARB_color_buffer_float_and_new_buffers
[] = {
420 EXT(ARB_color_buffer_float
),
425 /* This is the big table describing all the enums we accept in
426 * glGet*v(). The table is partitioned into six parts: enums
427 * understood by all GL APIs (OpenGL, GLES and GLES2), enums shared
428 * between OpenGL and GLES, enums exclusive to GLES, etc for the
429 * remaining combinations. To look up the enums valid in a given API
430 * we will use a hash table specific to that API. These tables are in
431 * turn generated at build time and included through get_hash.h.
434 #include "get_hash.h"
436 /* All we need now is a way to look up the value struct from the enum.
437 * The code generated by gcc for the old generated big switch
438 * statement is a big, balanced, open coded if/else tree, essentially
439 * an unrolled binary search. It would be natural to sort the new
440 * enum table and use bsearch(), but we will use a read-only hash
441 * table instead. bsearch() has a nice guaranteed worst case
442 * performance, but we're also guaranteed to hit that worst case
443 * (log2(n) iterations) for about half the enums. Instead, using an
444 * open addressing hash table, we can find the enum on the first try
445 * for 80% of the enums, 1 collision for 10% and never more than 5
446 * collisions for any enum (typical numbers). And the code is very
447 * simple, even though it feels a little magic. */
451 print_table_stats(int api
)
453 int i
, j
, collisions
[11], count
, hash
, mask
;
454 const struct value_desc
*d
;
455 const char *api_names
[] = {
456 [API_OPENGL_COMPAT
] = "GL",
457 [API_OPENGL_CORE
] = "GL_CORE",
458 [API_OPENGLES
] = "GLES",
459 [API_OPENGLES2
] = "GLES2",
461 const char *api_name
;
463 api_name
= api
< Elements(api_names
) ? api_names
[api
] : "N/A";
465 mask
= Elements(table(api
)) - 1;
466 memset(collisions
, 0, sizeof collisions
);
468 for (i
= 0; i
< Elements(table(api
)); i
++) {
472 d
= &values
[table(api
)[i
]];
473 hash
= (d
->pname
* prime_factor
);
476 if (values
[table(api
)[hash
& mask
]].pname
== d
->pname
)
488 printf("number of enums for %s: %d (total %ld)\n",
489 api_name
, count
, Elements(values
));
490 for (i
= 0; i
< Elements(collisions
) - 1; i
++)
491 if (collisions
[i
] > 0)
492 printf(" %d enums with %d %scollisions\n",
493 collisions
[i
], i
, i
== 10 ? "or more " : "");
498 * Initialize the enum hash for a given API
500 * This is called from one_time_init() to insert the enum values that
501 * are valid for the API in question into the enum hash table.
503 * \param the current context, for determining the API in question
505 void _mesa_init_get_hash(struct gl_context
*ctx
)
513 * Handle irregular enums
515 * Some values don't conform to the "well-known type at context
516 * pointer + offset" pattern, so we have this function to catch all
517 * the corner cases. Typically, it's a computed value or a one-off
518 * pointer to a custom struct or something.
520 * In this case we can't return a pointer to the value, so we'll have
521 * to use the temporary variable 'v' declared back in the calling
522 * glGet*v() function to store the result.
524 * \param ctx the current context
525 * \param d the struct value_desc that describes the enum
526 * \param v pointer to the tmp declared in the calling glGet*v() function
529 find_custom_value(struct gl_context
*ctx
, const struct value_desc
*d
, union value
*v
)
531 struct gl_buffer_object
**buffer_obj
;
532 struct gl_client_array
*array
;
536 case GL_MAJOR_VERSION
:
537 v
->value_int
= ctx
->Version
/ 10;
539 case GL_MINOR_VERSION
:
540 v
->value_int
= ctx
->Version
% 10;
546 case GL_TEXTURE_1D_ARRAY_EXT
:
547 case GL_TEXTURE_2D_ARRAY_EXT
:
548 case GL_TEXTURE_CUBE_MAP_ARB
:
549 case GL_TEXTURE_RECTANGLE_NV
:
550 case GL_TEXTURE_EXTERNAL_OES
:
551 v
->value_bool
= _mesa_IsEnabled(d
->pname
);
554 case GL_LINE_STIPPLE_PATTERN
:
555 /* This is the only GLushort, special case it here by promoting
556 * to an int rather than introducing a new type. */
557 v
->value_int
= ctx
->Line
.StipplePattern
;
560 case GL_CURRENT_RASTER_TEXTURE_COORDS
:
561 unit
= ctx
->Texture
.CurrentUnit
;
562 v
->value_float_4
[0] = ctx
->Current
.RasterTexCoords
[unit
][0];
563 v
->value_float_4
[1] = ctx
->Current
.RasterTexCoords
[unit
][1];
564 v
->value_float_4
[2] = ctx
->Current
.RasterTexCoords
[unit
][2];
565 v
->value_float_4
[3] = ctx
->Current
.RasterTexCoords
[unit
][3];
568 case GL_CURRENT_TEXTURE_COORDS
:
569 unit
= ctx
->Texture
.CurrentUnit
;
570 v
->value_float_4
[0] = ctx
->Current
.Attrib
[VERT_ATTRIB_TEX0
+ unit
][0];
571 v
->value_float_4
[1] = ctx
->Current
.Attrib
[VERT_ATTRIB_TEX0
+ unit
][1];
572 v
->value_float_4
[2] = ctx
->Current
.Attrib
[VERT_ATTRIB_TEX0
+ unit
][2];
573 v
->value_float_4
[3] = ctx
->Current
.Attrib
[VERT_ATTRIB_TEX0
+ unit
][3];
576 case GL_COLOR_WRITEMASK
:
577 v
->value_int_4
[0] = ctx
->Color
.ColorMask
[0][RCOMP
] ? 1 : 0;
578 v
->value_int_4
[1] = ctx
->Color
.ColorMask
[0][GCOMP
] ? 1 : 0;
579 v
->value_int_4
[2] = ctx
->Color
.ColorMask
[0][BCOMP
] ? 1 : 0;
580 v
->value_int_4
[3] = ctx
->Color
.ColorMask
[0][ACOMP
] ? 1 : 0;
584 v
->value_bool
= ctx
->Current
.Attrib
[VERT_ATTRIB_EDGEFLAG
][0] == 1.0;
588 v
->value_enum
= ctx
->ReadBuffer
->ColorReadBuffer
;
591 case GL_MAP2_GRID_DOMAIN
:
592 v
->value_float_4
[0] = ctx
->Eval
.MapGrid2u1
;
593 v
->value_float_4
[1] = ctx
->Eval
.MapGrid2u2
;
594 v
->value_float_4
[2] = ctx
->Eval
.MapGrid2v1
;
595 v
->value_float_4
[3] = ctx
->Eval
.MapGrid2v2
;
598 case GL_TEXTURE_STACK_DEPTH
:
599 unit
= ctx
->Texture
.CurrentUnit
;
600 v
->value_int
= ctx
->TextureMatrixStack
[unit
].Depth
+ 1;
602 case GL_TEXTURE_MATRIX
:
603 unit
= ctx
->Texture
.CurrentUnit
;
604 v
->value_matrix
= ctx
->TextureMatrixStack
[unit
].Top
;
607 case GL_TEXTURE_COORD_ARRAY
:
608 case GL_TEXTURE_COORD_ARRAY_SIZE
:
609 case GL_TEXTURE_COORD_ARRAY_TYPE
:
610 case GL_TEXTURE_COORD_ARRAY_STRIDE
:
611 array
= &ctx
->Array
.ArrayObj
->VertexAttrib
[VERT_ATTRIB_TEX(ctx
->Array
.ActiveTexture
)];
612 v
->value_int
= *(GLuint
*) ((char *) array
+ d
->offset
);
615 case GL_ACTIVE_TEXTURE_ARB
:
616 v
->value_int
= GL_TEXTURE0_ARB
+ ctx
->Texture
.CurrentUnit
;
618 case GL_CLIENT_ACTIVE_TEXTURE_ARB
:
619 v
->value_int
= GL_TEXTURE0_ARB
+ ctx
->Array
.ActiveTexture
;
622 case GL_MODELVIEW_STACK_DEPTH
:
623 case GL_PROJECTION_STACK_DEPTH
:
624 v
->value_int
= *(GLint
*) ((char *) ctx
+ d
->offset
) + 1;
627 case GL_MAX_TEXTURE_SIZE
:
628 case GL_MAX_3D_TEXTURE_SIZE
:
629 case GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB
:
630 p
= (GLuint
*) ((char *) ctx
+ d
->offset
);
631 v
->value_int
= 1 << (*p
- 1);
635 v
->value_int_4
[0] = ctx
->Scissor
.X
;
636 v
->value_int_4
[1] = ctx
->Scissor
.Y
;
637 v
->value_int_4
[2] = ctx
->Scissor
.Width
;
638 v
->value_int_4
[3] = ctx
->Scissor
.Height
;
643 ctx
->ListState
.CurrentList
? ctx
->ListState
.CurrentList
->Name
: 0;
646 if (!ctx
->CompileFlag
)
648 else if (ctx
->ExecuteFlag
)
649 v
->value_enum
= GL_COMPILE_AND_EXECUTE
;
651 v
->value_enum
= GL_COMPILE
;
655 v
->value_int_4
[0] = ctx
->Viewport
.X
;
656 v
->value_int_4
[1] = ctx
->Viewport
.Y
;
657 v
->value_int_4
[2] = ctx
->Viewport
.Width
;
658 v
->value_int_4
[3] = ctx
->Viewport
.Height
;
661 case GL_ACTIVE_STENCIL_FACE_EXT
:
662 v
->value_enum
= ctx
->Stencil
.ActiveFace
? GL_BACK
: GL_FRONT
;
665 case GL_STENCIL_FAIL
:
666 v
->value_enum
= ctx
->Stencil
.FailFunc
[ctx
->Stencil
.ActiveFace
];
668 case GL_STENCIL_FUNC
:
669 v
->value_enum
= ctx
->Stencil
.Function
[ctx
->Stencil
.ActiveFace
];
671 case GL_STENCIL_PASS_DEPTH_FAIL
:
672 v
->value_enum
= ctx
->Stencil
.ZFailFunc
[ctx
->Stencil
.ActiveFace
];
674 case GL_STENCIL_PASS_DEPTH_PASS
:
675 v
->value_enum
= ctx
->Stencil
.ZPassFunc
[ctx
->Stencil
.ActiveFace
];
678 v
->value_int
= ctx
->Stencil
.Ref
[ctx
->Stencil
.ActiveFace
];
680 case GL_STENCIL_VALUE_MASK
:
681 v
->value_int
= ctx
->Stencil
.ValueMask
[ctx
->Stencil
.ActiveFace
];
683 case GL_STENCIL_WRITEMASK
:
684 v
->value_int
= ctx
->Stencil
.WriteMask
[ctx
->Stencil
.ActiveFace
];
687 case GL_NUM_EXTENSIONS
:
688 v
->value_int
= _mesa_get_extension_count(ctx
);
691 case GL_IMPLEMENTATION_COLOR_READ_TYPE_OES
:
692 v
->value_int
= _mesa_get_color_read_type(ctx
);
694 case GL_IMPLEMENTATION_COLOR_READ_FORMAT_OES
:
695 v
->value_int
= _mesa_get_color_read_format(ctx
);
698 case GL_CURRENT_MATRIX_STACK_DEPTH_ARB
:
699 v
->value_int
= ctx
->CurrentStack
->Depth
+ 1;
701 case GL_CURRENT_MATRIX_ARB
:
702 case GL_TRANSPOSE_CURRENT_MATRIX_ARB
:
703 v
->value_matrix
= ctx
->CurrentStack
->Top
;
706 case GL_NUM_COMPRESSED_TEXTURE_FORMATS_ARB
:
707 v
->value_int
= _mesa_get_compressed_formats(ctx
, NULL
);
709 case GL_COMPRESSED_TEXTURE_FORMATS_ARB
:
711 _mesa_get_compressed_formats(ctx
, v
->value_int_n
.ints
);
712 ASSERT(v
->value_int_n
.n
<= 100);
715 case GL_MAX_VARYING_FLOATS_ARB
:
716 v
->value_int
= ctx
->Const
.MaxVarying
* 4;
719 /* Various object names */
721 case GL_TEXTURE_BINDING_1D
:
722 case GL_TEXTURE_BINDING_2D
:
723 case GL_TEXTURE_BINDING_3D
:
724 case GL_TEXTURE_BINDING_1D_ARRAY_EXT
:
725 case GL_TEXTURE_BINDING_2D_ARRAY_EXT
:
726 case GL_TEXTURE_BINDING_CUBE_MAP_ARB
:
727 case GL_TEXTURE_BINDING_RECTANGLE_NV
:
728 case GL_TEXTURE_BINDING_EXTERNAL_OES
:
729 case GL_TEXTURE_BINDING_CUBE_MAP_ARRAY
:
730 case GL_TEXTURE_BINDING_2D_MULTISAMPLE
:
731 case GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY
:
732 unit
= ctx
->Texture
.CurrentUnit
;
734 ctx
->Texture
.Unit
[unit
].CurrentTex
[d
->offset
]->Name
;
737 /* GL_ARB_vertex_buffer_object */
738 case GL_VERTEX_ARRAY_BUFFER_BINDING_ARB
:
739 case GL_NORMAL_ARRAY_BUFFER_BINDING_ARB
:
740 case GL_COLOR_ARRAY_BUFFER_BINDING_ARB
:
741 case GL_INDEX_ARRAY_BUFFER_BINDING_ARB
:
742 case GL_EDGE_FLAG_ARRAY_BUFFER_BINDING_ARB
:
743 case GL_SECONDARY_COLOR_ARRAY_BUFFER_BINDING_ARB
:
744 case GL_FOG_COORDINATE_ARRAY_BUFFER_BINDING_ARB
:
745 buffer_obj
= (struct gl_buffer_object
**)
746 ((char *) ctx
->Array
.ArrayObj
+ d
->offset
);
747 v
->value_int
= (*buffer_obj
)->Name
;
749 case GL_ARRAY_BUFFER_BINDING_ARB
:
750 v
->value_int
= ctx
->Array
.ArrayBufferObj
->Name
;
752 case GL_TEXTURE_COORD_ARRAY_BUFFER_BINDING_ARB
:
754 ctx
->Array
.ArrayObj
->VertexAttrib
[VERT_ATTRIB_TEX(ctx
->Array
.ActiveTexture
)].BufferObj
->Name
;
756 case GL_ELEMENT_ARRAY_BUFFER_BINDING_ARB
:
757 v
->value_int
= ctx
->Array
.ArrayObj
->ElementArrayBufferObj
->Name
;
760 /* ARB_copy_buffer */
761 case GL_COPY_READ_BUFFER
:
762 v
->value_int
= ctx
->CopyReadBuffer
->Name
;
764 case GL_COPY_WRITE_BUFFER
:
765 v
->value_int
= ctx
->CopyWriteBuffer
->Name
;
768 case GL_PIXEL_PACK_BUFFER_BINDING_EXT
:
769 v
->value_int
= ctx
->Pack
.BufferObj
->Name
;
771 case GL_PIXEL_UNPACK_BUFFER_BINDING_EXT
:
772 v
->value_int
= ctx
->Unpack
.BufferObj
->Name
;
774 case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING
:
775 v
->value_int
= ctx
->TransformFeedback
.CurrentBuffer
->Name
;
777 case GL_TRANSFORM_FEEDBACK_BUFFER_PAUSED
:
778 v
->value_int
= ctx
->TransformFeedback
.CurrentObject
->Paused
;
780 case GL_TRANSFORM_FEEDBACK_BUFFER_ACTIVE
:
781 v
->value_int
= ctx
->TransformFeedback
.CurrentObject
->Active
;
783 case GL_TRANSFORM_FEEDBACK_BINDING
:
784 v
->value_int
= ctx
->TransformFeedback
.CurrentObject
->Name
;
786 case GL_CURRENT_PROGRAM
:
788 ctx
->Shader
.ActiveProgram
? ctx
->Shader
.ActiveProgram
->Name
: 0;
790 case GL_READ_FRAMEBUFFER_BINDING_EXT
:
791 v
->value_int
= ctx
->ReadBuffer
->Name
;
793 case GL_RENDERBUFFER_BINDING_EXT
:
795 ctx
->CurrentRenderbuffer
? ctx
->CurrentRenderbuffer
->Name
: 0;
797 case GL_POINT_SIZE_ARRAY_BUFFER_BINDING_OES
:
798 v
->value_int
= ctx
->Array
.ArrayObj
->VertexAttrib
[VERT_ATTRIB_POINT_SIZE
].BufferObj
->Name
;
802 if (_mesa_get_clamp_fragment_color(ctx
))
803 COPY_4FV(v
->value_float_4
, ctx
->Fog
.Color
);
805 COPY_4FV(v
->value_float_4
, ctx
->Fog
.ColorUnclamped
);
807 case GL_COLOR_CLEAR_VALUE
:
808 if (_mesa_get_clamp_fragment_color(ctx
)) {
809 v
->value_float_4
[0] = CLAMP(ctx
->Color
.ClearColor
.f
[0], 0.0F
, 1.0F
);
810 v
->value_float_4
[1] = CLAMP(ctx
->Color
.ClearColor
.f
[1], 0.0F
, 1.0F
);
811 v
->value_float_4
[2] = CLAMP(ctx
->Color
.ClearColor
.f
[2], 0.0F
, 1.0F
);
812 v
->value_float_4
[3] = CLAMP(ctx
->Color
.ClearColor
.f
[3], 0.0F
, 1.0F
);
814 COPY_4FV(v
->value_float_4
, ctx
->Color
.ClearColor
.f
);
816 case GL_BLEND_COLOR_EXT
:
817 if (_mesa_get_clamp_fragment_color(ctx
))
818 COPY_4FV(v
->value_float_4
, ctx
->Color
.BlendColor
);
820 COPY_4FV(v
->value_float_4
, ctx
->Color
.BlendColorUnclamped
);
822 case GL_ALPHA_TEST_REF
:
823 if (_mesa_get_clamp_fragment_color(ctx
))
824 v
->value_float
= ctx
->Color
.AlphaRef
;
826 v
->value_float
= ctx
->Color
.AlphaRefUnclamped
;
828 case GL_MAX_VERTEX_UNIFORM_VECTORS
:
829 v
->value_int
= ctx
->Const
.VertexProgram
.MaxUniformComponents
/ 4;
832 case GL_MAX_FRAGMENT_UNIFORM_VECTORS
:
833 v
->value_int
= ctx
->Const
.FragmentProgram
.MaxUniformComponents
/ 4;
836 /* GL_ARB_texture_buffer_object */
837 case GL_TEXTURE_BUFFER_ARB
:
838 v
->value_int
= ctx
->Texture
.BufferObject
->Name
;
840 case GL_TEXTURE_BINDING_BUFFER_ARB
:
841 unit
= ctx
->Texture
.CurrentUnit
;
843 ctx
->Texture
.Unit
[unit
].CurrentTex
[TEXTURE_BUFFER_INDEX
]->Name
;
845 case GL_TEXTURE_BUFFER_DATA_STORE_BINDING_ARB
:
847 struct gl_buffer_object
*buf
=
848 ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
]
849 .CurrentTex
[TEXTURE_BUFFER_INDEX
]->BufferObject
;
850 v
->value_int
= buf
? buf
->Name
: 0;
853 case GL_TEXTURE_BUFFER_FORMAT_ARB
:
854 v
->value_int
= ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
]
855 .CurrentTex
[TEXTURE_BUFFER_INDEX
]->BufferObjectFormat
;
858 /* GL_ARB_sampler_objects */
859 case GL_SAMPLER_BINDING
:
861 struct gl_sampler_object
*samp
=
862 ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
].Sampler
;
865 * The sampler object may have been deleted on another context,
866 * so we try to lookup the sampler object before returning its Name.
868 if (samp
&& _mesa_lookup_samplerobj(ctx
, samp
->Name
)) {
869 v
->value_int
= samp
->Name
;
875 /* GL_ARB_uniform_buffer_object */
876 case GL_UNIFORM_BUFFER_BINDING
:
877 v
->value_int
= ctx
->UniformBuffer
->Name
;
879 /* GL_ARB_timer_query */
881 if (ctx
->Driver
.GetTimestamp
) {
882 v
->value_int64
= ctx
->Driver
.GetTimestamp(ctx
);
885 _mesa_problem(ctx
, "driver doesn't implement GetTimestamp");
892 * Check extra constraints on a struct value_desc descriptor
894 * If a struct value_desc has a non-NULL extra pointer, it means that
895 * there are a number of extra constraints to check or actions to
896 * perform. The extras is just an integer array where each integer
897 * encode different constraints or actions.
899 * \param ctx current context
900 * \param func name of calling glGet*v() function for error reporting
901 * \param d the struct value_desc that has the extra constraints
903 * \return GL_FALSE if all of the constraints were not satisfied,
907 check_extra(struct gl_context
*ctx
, const char *func
, const struct value_desc
*d
)
909 const GLuint version
= ctx
->Version
;
910 GLboolean api_check
= GL_FALSE
;
911 GLboolean api_found
= GL_FALSE
;
914 for (e
= d
->extra
; *e
!= EXTRA_END
; e
++) {
916 case EXTRA_VERSION_30
:
921 case EXTRA_VERSION_31
:
926 case EXTRA_VERSION_32
:
931 case EXTRA_NEW_FRAG_CLAMP
:
932 if (ctx
->NewState
& (_NEW_BUFFERS
| _NEW_FRAG_CLAMP
))
933 _mesa_update_state(ctx
);
937 if (ctx
->API
== API_OPENGLES2
)
942 if (_mesa_is_gles3(ctx
))
947 if (_mesa_is_desktop_gl(ctx
))
950 case EXTRA_API_GL_CORE
:
952 if (ctx
->API
== API_OPENGL_CORE
)
955 case EXTRA_NEW_BUFFERS
:
956 if (ctx
->NewState
& _NEW_BUFFERS
)
957 _mesa_update_state(ctx
);
959 case EXTRA_FLUSH_CURRENT
:
960 FLUSH_CURRENT(ctx
, 0);
962 case EXTRA_VALID_DRAW_BUFFER
:
963 if (d
->pname
- GL_DRAW_BUFFER0_ARB
>= ctx
->Const
.MaxDrawBuffers
) {
964 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(draw buffer %u)",
965 func
, d
->pname
- GL_DRAW_BUFFER0_ARB
);
969 case EXTRA_VALID_TEXTURE_UNIT
:
970 if (ctx
->Texture
.CurrentUnit
>= ctx
->Const
.MaxTextureCoordUnits
) {
971 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(texture %u)",
972 func
, ctx
->Texture
.CurrentUnit
);
976 case EXTRA_VALID_CLIP_DISTANCE
:
977 if (d
->pname
- GL_CLIP_DISTANCE0
>= ctx
->Const
.MaxClipPlanes
) {
978 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(clip distance %u)",
979 func
, d
->pname
- GL_CLIP_DISTANCE0
);
985 if (ctx
->Const
.GLSLVersion
>= 130)
988 case EXTRA_EXT_UBO_GS4
:
990 api_found
= (ctx
->Extensions
.ARB_uniform_buffer_object
&&
991 ctx
->Extensions
.ARB_geometry_shader4
);
995 default: /* *e is a offset into the extension struct */
997 if (*(GLboolean
*) ((char *) &ctx
->Extensions
+ *e
))
1003 if (api_check
&& !api_found
) {
1004 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=%s)", func
,
1005 _mesa_lookup_enum_by_nr(d
->pname
));
1012 static const struct value_desc error_value
=
1013 { 0, 0, TYPE_INVALID
, NO_OFFSET
, NO_EXTRA
};
1016 * Find the struct value_desc corresponding to the enum 'pname'.
1018 * We hash the enum value to get an index into the 'table' array,
1019 * which holds the index in the 'values' array of struct value_desc.
1020 * Once we've found the entry, we do the extra checks, if any, then
1021 * look up the value and return a pointer to it.
1023 * If the value has to be computed (for example, it's the result of a
1024 * function call or we need to add 1 to it), we use the tmp 'v' to
1027 * \param func name of glGet*v() func for error reporting
1028 * \param pname the enum value we're looking up
1029 * \param p is were we return the pointer to the value
1030 * \param v a tmp union value variable in the calling glGet*v() function
1032 * \return the struct value_desc corresponding to the enum or a struct
1033 * value_desc of TYPE_INVALID if not found. This lets the calling
1034 * glGet*v() function jump right into a switch statement and
1035 * handle errors there instead of having to check for NULL.
1037 static const struct value_desc
*
1038 find_value(const char *func
, GLenum pname
, void **p
, union value
*v
)
1040 GET_CURRENT_CONTEXT(ctx
);
1041 struct gl_texture_unit
*unit
;
1043 const struct value_desc
*d
;
1047 /* We index into the table_set[] list of per-API hash tables using the API's
1048 * value in the gl_api enum. Since GLES 3 doesn't have an API_OPENGL* enum
1049 * value since it's compatible with GLES2 its entry in table_set[] is at the
1052 STATIC_ASSERT(Elements(table_set
) == API_OPENGL_LAST
+ 2);
1053 if (_mesa_is_gles3(ctx
)) {
1054 api
= API_OPENGL_LAST
+ 1;
1056 mask
= Elements(table(api
)) - 1;
1057 hash
= (pname
* prime_factor
);
1059 int idx
= table(api
)[hash
& mask
];
1061 /* If the enum isn't valid, the hash walk ends with index 0,
1062 * pointing to the first entry of values[] which doesn't hold
1063 * any valid enum. */
1064 if (unlikely(idx
== 0)) {
1065 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=%s)", func
,
1066 _mesa_lookup_enum_by_nr(pname
));
1067 return &error_value
;
1071 if (likely(d
->pname
== pname
))
1077 if (unlikely(d
->extra
&& !check_extra(ctx
, func
, d
)))
1078 return &error_value
;
1080 switch (d
->location
) {
1082 *p
= ((char *) ctx
->DrawBuffer
+ d
->offset
);
1085 *p
= ((char *) ctx
+ d
->offset
);
1088 *p
= ((char *) ctx
->Array
.ArrayObj
+ d
->offset
);
1091 unit
= &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1092 *p
= ((char *) unit
+ d
->offset
);
1095 find_custom_value(ctx
, d
, v
);
1103 /* silence warning */
1104 return &error_value
;
1107 static const int transpose
[] = {
1115 _mesa_GetBooleanv(GLenum pname
, GLboolean
*params
)
1117 const struct value_desc
*d
;
1123 d
= find_value("glGetBooleanv", pname
, &p
, &v
);
1128 params
[0] = INT_TO_BOOLEAN(d
->offset
);
1133 params
[3] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[3]);
1136 params
[2] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[2]);
1139 params
[1] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[1]);
1142 params
[0] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[0]);
1146 params
[0] = FLOAT_TO_BOOLEAN(((GLdouble
*) p
)[0]);
1150 params
[3] = INT_TO_BOOLEAN(((GLint
*) p
)[3]);
1152 params
[2] = INT_TO_BOOLEAN(((GLint
*) p
)[2]);
1155 params
[1] = INT_TO_BOOLEAN(((GLint
*) p
)[1]);
1158 params
[0] = INT_TO_BOOLEAN(((GLint
*) p
)[0]);
1162 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1163 params
[i
] = INT_TO_BOOLEAN(v
.value_int_n
.ints
[i
]);
1167 params
[0] = INT64_TO_BOOLEAN(((GLint64
*) p
)[0]);
1171 params
[0] = ((GLboolean
*) p
)[0];
1175 m
= *(GLmatrix
**) p
;
1176 for (i
= 0; i
< 16; i
++)
1177 params
[i
] = FLOAT_TO_BOOLEAN(m
->m
[i
]);
1181 m
= *(GLmatrix
**) p
;
1182 for (i
= 0; i
< 16; i
++)
1183 params
[i
] = FLOAT_TO_BOOLEAN(m
->m
[transpose
[i
]]);
1194 shift
= d
->type
- TYPE_BIT_0
;
1195 params
[0] = (*(GLbitfield
*) p
>> shift
) & 1;
1201 _mesa_GetFloatv(GLenum pname
, GLfloat
*params
)
1203 const struct value_desc
*d
;
1209 d
= find_value("glGetFloatv", pname
, &p
, &v
);
1214 params
[0] = (GLfloat
) d
->offset
;
1219 params
[3] = ((GLfloat
*) p
)[3];
1222 params
[2] = ((GLfloat
*) p
)[2];
1225 params
[1] = ((GLfloat
*) p
)[1];
1228 params
[0] = ((GLfloat
*) p
)[0];
1232 params
[0] = (GLfloat
) (((GLdouble
*) p
)[0]);
1236 params
[3] = (GLfloat
) (((GLint
*) p
)[3]);
1238 params
[2] = (GLfloat
) (((GLint
*) p
)[2]);
1241 params
[1] = (GLfloat
) (((GLint
*) p
)[1]);
1244 params
[0] = (GLfloat
) (((GLint
*) p
)[0]);
1248 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1249 params
[i
] = INT_TO_FLOAT(v
.value_int_n
.ints
[i
]);
1253 params
[0] = (GLfloat
) (((GLint64
*) p
)[0]);
1257 params
[0] = BOOLEAN_TO_FLOAT(*(GLboolean
*) p
);
1261 m
= *(GLmatrix
**) p
;
1262 for (i
= 0; i
< 16; i
++)
1263 params
[i
] = m
->m
[i
];
1267 m
= *(GLmatrix
**) p
;
1268 for (i
= 0; i
< 16; i
++)
1269 params
[i
] = m
->m
[transpose
[i
]];
1280 shift
= d
->type
- TYPE_BIT_0
;
1281 params
[0] = BOOLEAN_TO_FLOAT((*(GLbitfield
*) p
>> shift
) & 1);
1287 _mesa_GetIntegerv(GLenum pname
, GLint
*params
)
1289 const struct value_desc
*d
;
1295 d
= find_value("glGetIntegerv", pname
, &p
, &v
);
1300 params
[0] = d
->offset
;
1304 params
[3] = IROUND(((GLfloat
*) p
)[3]);
1306 params
[2] = IROUND(((GLfloat
*) p
)[2]);
1308 params
[1] = IROUND(((GLfloat
*) p
)[1]);
1310 params
[0] = IROUND(((GLfloat
*) p
)[0]);
1314 params
[3] = FLOAT_TO_INT(((GLfloat
*) p
)[3]);
1316 params
[2] = FLOAT_TO_INT(((GLfloat
*) p
)[2]);
1318 params
[1] = FLOAT_TO_INT(((GLfloat
*) p
)[1]);
1320 params
[0] = FLOAT_TO_INT(((GLfloat
*) p
)[0]);
1324 params
[0] = FLOAT_TO_INT(((GLdouble
*) p
)[0]);
1328 params
[3] = ((GLint
*) p
)[3];
1330 params
[2] = ((GLint
*) p
)[2];
1333 params
[1] = ((GLint
*) p
)[1];
1336 params
[0] = ((GLint
*) p
)[0];
1340 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1341 params
[i
] = v
.value_int_n
.ints
[i
];
1345 params
[0] = INT64_TO_INT(((GLint64
*) p
)[0]);
1349 params
[0] = BOOLEAN_TO_INT(*(GLboolean
*) p
);
1353 m
= *(GLmatrix
**) p
;
1354 for (i
= 0; i
< 16; i
++)
1355 params
[i
] = FLOAT_TO_INT(m
->m
[i
]);
1359 m
= *(GLmatrix
**) p
;
1360 for (i
= 0; i
< 16; i
++)
1361 params
[i
] = FLOAT_TO_INT(m
->m
[transpose
[i
]]);
1372 shift
= d
->type
- TYPE_BIT_0
;
1373 params
[0] = (*(GLbitfield
*) p
>> shift
) & 1;
1379 _mesa_GetInteger64v(GLenum pname
, GLint64
*params
)
1381 const struct value_desc
*d
;
1387 d
= find_value("glGetInteger64v", pname
, &p
, &v
);
1392 params
[0] = d
->offset
;
1396 params
[3] = IROUND64(((GLfloat
*) p
)[3]);
1398 params
[2] = IROUND64(((GLfloat
*) p
)[2]);
1400 params
[1] = IROUND64(((GLfloat
*) p
)[1]);
1402 params
[0] = IROUND64(((GLfloat
*) p
)[0]);
1406 params
[3] = FLOAT_TO_INT64(((GLfloat
*) p
)[3]);
1408 params
[2] = FLOAT_TO_INT64(((GLfloat
*) p
)[2]);
1410 params
[1] = FLOAT_TO_INT64(((GLfloat
*) p
)[1]);
1412 params
[0] = FLOAT_TO_INT64(((GLfloat
*) p
)[0]);
1416 params
[0] = FLOAT_TO_INT64(((GLdouble
*) p
)[0]);
1420 params
[3] = ((GLint
*) p
)[3];
1422 params
[2] = ((GLint
*) p
)[2];
1425 params
[1] = ((GLint
*) p
)[1];
1428 params
[0] = ((GLint
*) p
)[0];
1432 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1433 params
[i
] = INT_TO_BOOLEAN(v
.value_int_n
.ints
[i
]);
1437 params
[0] = ((GLint64
*) p
)[0];
1441 params
[0] = ((GLboolean
*) p
)[0];
1445 m
= *(GLmatrix
**) p
;
1446 for (i
= 0; i
< 16; i
++)
1447 params
[i
] = FLOAT_TO_INT64(m
->m
[i
]);
1451 m
= *(GLmatrix
**) p
;
1452 for (i
= 0; i
< 16; i
++)
1453 params
[i
] = FLOAT_TO_INT64(m
->m
[transpose
[i
]]);
1464 shift
= d
->type
- TYPE_BIT_0
;
1465 params
[0] = (*(GLbitfield
*) p
>> shift
) & 1;
1471 _mesa_GetDoublev(GLenum pname
, GLdouble
*params
)
1473 const struct value_desc
*d
;
1479 d
= find_value("glGetDoublev", pname
, &p
, &v
);
1484 params
[0] = d
->offset
;
1489 params
[3] = ((GLfloat
*) p
)[3];
1492 params
[2] = ((GLfloat
*) p
)[2];
1495 params
[1] = ((GLfloat
*) p
)[1];
1498 params
[0] = ((GLfloat
*) p
)[0];
1502 params
[0] = ((GLdouble
*) p
)[0];
1506 params
[3] = ((GLint
*) p
)[3];
1508 params
[2] = ((GLint
*) p
)[2];
1511 params
[1] = ((GLint
*) p
)[1];
1514 params
[0] = ((GLint
*) p
)[0];
1518 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1519 params
[i
] = v
.value_int_n
.ints
[i
];
1523 params
[0] = (GLdouble
) (((GLint64
*) p
)[0]);
1527 params
[0] = *(GLboolean
*) p
;
1531 m
= *(GLmatrix
**) p
;
1532 for (i
= 0; i
< 16; i
++)
1533 params
[i
] = m
->m
[i
];
1537 m
= *(GLmatrix
**) p
;
1538 for (i
= 0; i
< 16; i
++)
1539 params
[i
] = m
->m
[transpose
[i
]];
1550 shift
= d
->type
- TYPE_BIT_0
;
1551 params
[0] = (*(GLbitfield
*) p
>> shift
) & 1;
1556 static enum value_type
1557 find_value_indexed(const char *func
, GLenum pname
, GLuint index
, union value
*v
)
1559 GET_CURRENT_CONTEXT(ctx
);
1564 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1566 if (!ctx
->Extensions
.EXT_draw_buffers2
)
1568 v
->value_int
= (ctx
->Color
.BlendEnabled
>> index
) & 1;
1573 case GL_BLEND_SRC_RGB
:
1574 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1576 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1578 v
->value_int
= ctx
->Color
.Blend
[index
].SrcRGB
;
1580 case GL_BLEND_SRC_ALPHA
:
1581 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1583 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1585 v
->value_int
= ctx
->Color
.Blend
[index
].SrcA
;
1589 case GL_BLEND_DST_RGB
:
1590 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1592 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1594 v
->value_int
= ctx
->Color
.Blend
[index
].DstRGB
;
1596 case GL_BLEND_DST_ALPHA
:
1597 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1599 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1601 v
->value_int
= ctx
->Color
.Blend
[index
].DstA
;
1603 case GL_BLEND_EQUATION_RGB
:
1604 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1606 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1608 v
->value_int
= ctx
->Color
.Blend
[index
].EquationRGB
;
1610 case GL_BLEND_EQUATION_ALPHA
:
1611 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1613 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1615 v
->value_int
= ctx
->Color
.Blend
[index
].EquationA
;
1618 case GL_COLOR_WRITEMASK
:
1619 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1621 if (!ctx
->Extensions
.EXT_draw_buffers2
)
1623 v
->value_int_4
[0] = ctx
->Color
.ColorMask
[index
][RCOMP
] ? 1 : 0;
1624 v
->value_int_4
[1] = ctx
->Color
.ColorMask
[index
][GCOMP
] ? 1 : 0;
1625 v
->value_int_4
[2] = ctx
->Color
.ColorMask
[index
][BCOMP
] ? 1 : 0;
1626 v
->value_int_4
[3] = ctx
->Color
.ColorMask
[index
][ACOMP
] ? 1 : 0;
1629 case GL_TRANSFORM_FEEDBACK_BUFFER_START
:
1630 if (index
>= ctx
->Const
.MaxTransformFeedbackBuffers
)
1632 if (!ctx
->Extensions
.EXT_transform_feedback
)
1634 v
->value_int64
= ctx
->TransformFeedback
.CurrentObject
->Offset
[index
];
1637 case GL_TRANSFORM_FEEDBACK_BUFFER_SIZE
:
1638 if (index
>= ctx
->Const
.MaxTransformFeedbackBuffers
)
1640 if (!ctx
->Extensions
.EXT_transform_feedback
)
1643 = ctx
->TransformFeedback
.CurrentObject
->RequestedSize
[index
];
1646 case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING
:
1647 if (index
>= ctx
->Const
.MaxTransformFeedbackBuffers
)
1649 if (!ctx
->Extensions
.EXT_transform_feedback
)
1651 v
->value_int
= ctx
->TransformFeedback
.CurrentObject
->BufferNames
[index
];
1654 case GL_UNIFORM_BUFFER_BINDING
:
1655 if (index
>= ctx
->Const
.MaxUniformBufferBindings
)
1657 if (!ctx
->Extensions
.ARB_uniform_buffer_object
)
1659 v
->value_int
= ctx
->UniformBufferBindings
[index
].BufferObject
->Name
;
1662 case GL_UNIFORM_BUFFER_START
:
1663 if (index
>= ctx
->Const
.MaxUniformBufferBindings
)
1665 if (!ctx
->Extensions
.ARB_uniform_buffer_object
)
1667 v
->value_int
= ctx
->UniformBufferBindings
[index
].Offset
;
1670 case GL_UNIFORM_BUFFER_SIZE
:
1671 if (index
>= ctx
->Const
.MaxUniformBufferBindings
)
1673 if (!ctx
->Extensions
.ARB_uniform_buffer_object
)
1675 v
->value_int
= ctx
->UniformBufferBindings
[index
].Size
;
1678 /* ARB_texture_multisample / GL3.2 */
1679 case GL_SAMPLE_MASK_VALUE
:
1682 if (!ctx
->Extensions
.ARB_texture_multisample
)
1684 v
->value_int
= ctx
->Multisample
.SampleMaskValue
;
1689 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=%s)", func
,
1690 _mesa_lookup_enum_by_nr(pname
));
1691 return TYPE_INVALID
;
1693 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(pname=%s)", func
,
1694 _mesa_lookup_enum_by_nr(pname
));
1695 return TYPE_INVALID
;
1699 _mesa_GetBooleani_v( GLenum pname
, GLuint index
, GLboolean
*params
)
1702 enum value_type type
=
1703 find_value_indexed("glGetBooleani_v", pname
, index
, &v
);
1707 params
[0] = INT_TO_BOOLEAN(v
.value_int
);
1710 params
[0] = INT_TO_BOOLEAN(v
.value_int_4
[0]);
1711 params
[1] = INT_TO_BOOLEAN(v
.value_int_4
[1]);
1712 params
[2] = INT_TO_BOOLEAN(v
.value_int_4
[2]);
1713 params
[3] = INT_TO_BOOLEAN(v
.value_int_4
[3]);
1716 params
[0] = INT64_TO_BOOLEAN(v
.value_int
);
1719 ; /* nothing - GL error was recorded */
1724 _mesa_GetIntegeri_v( GLenum pname
, GLuint index
, GLint
*params
)
1727 enum value_type type
=
1728 find_value_indexed("glGetIntegeri_v", pname
, index
, &v
);
1732 params
[0] = v
.value_int
;
1735 params
[0] = v
.value_int_4
[0];
1736 params
[1] = v
.value_int_4
[1];
1737 params
[2] = v
.value_int_4
[2];
1738 params
[3] = v
.value_int_4
[3];
1741 params
[0] = INT64_TO_INT(v
.value_int
);
1744 ; /* nothing - GL error was recorded */
1749 _mesa_GetInteger64i_v( GLenum pname
, GLuint index
, GLint64
*params
)
1752 enum value_type type
=
1753 find_value_indexed("glGetInteger64i_v", pname
, index
, &v
);
1757 params
[0] = v
.value_int
;
1760 params
[0] = v
.value_int_4
[0];
1761 params
[1] = v
.value_int_4
[1];
1762 params
[2] = v
.value_int_4
[2];
1763 params
[3] = v
.value_int_4
[3];
1766 params
[0] = v
.value_int
;
1769 ; /* nothing - GL error was recorded */
1774 _mesa_GetFixedv(GLenum pname
, GLfixed
*params
)
1776 const struct value_desc
*d
;
1782 d
= find_value("glGetDoublev", pname
, &p
, &v
);
1787 params
[0] = INT_TO_FIXED(d
->offset
);
1792 params
[3] = FLOAT_TO_FIXED(((GLfloat
*) p
)[3]);
1795 params
[2] = FLOAT_TO_FIXED(((GLfloat
*) p
)[2]);
1798 params
[1] = FLOAT_TO_FIXED(((GLfloat
*) p
)[1]);
1801 params
[0] = FLOAT_TO_FIXED(((GLfloat
*) p
)[0]);
1805 params
[0] = FLOAT_TO_FIXED(((GLdouble
*) p
)[0]);
1809 params
[3] = INT_TO_FIXED(((GLint
*) p
)[3]);
1811 params
[2] = INT_TO_FIXED(((GLint
*) p
)[2]);
1814 params
[1] = INT_TO_FIXED(((GLint
*) p
)[1]);
1817 params
[0] = INT_TO_FIXED(((GLint
*) p
)[0]);
1821 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1822 params
[i
] = INT_TO_FIXED(v
.value_int_n
.ints
[i
]);
1826 params
[0] = ((GLint64
*) p
)[0];
1830 params
[0] = BOOLEAN_TO_FIXED(((GLboolean
*) p
)[0]);
1834 m
= *(GLmatrix
**) p
;
1835 for (i
= 0; i
< 16; i
++)
1836 params
[i
] = FLOAT_TO_FIXED(m
->m
[i
]);
1840 m
= *(GLmatrix
**) p
;
1841 for (i
= 0; i
< 16; i
++)
1842 params
[i
] = FLOAT_TO_FIXED(m
->m
[transpose
[i
]]);
1853 shift
= d
->type
- TYPE_BIT_0
;
1854 params
[0] = BOOLEAN_TO_FIXED((*(GLbitfield
*) p
>> shift
) & 1);