2 * Copyright (C) 2010 Brian Paul All Rights Reserved.
3 * Copyright (C) 2010 Intel Corporation
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
12 * The above copyright notice and this permission notice shall be included
13 * in all copies or substantial portions of the Software.
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
16 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
19 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
20 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
22 * Author: Kristian Høgsberg <krh@bitplanet.net>
29 #include "extensions.h"
32 #include "mfeatures.h"
35 #include "texcompress.h"
36 #include "framebuffer.h"
38 /* This is a table driven implemetation of the glGet*v() functions.
39 * The basic idea is that most getters just look up an int somewhere
40 * in struct gl_context and then convert it to a bool or float according to
41 * which of glGetIntegerv() glGetBooleanv() etc is being called.
42 * Instead of generating code to do this, we can just record the enum
43 * value and the offset into struct gl_context in an array of structs. Then
44 * in glGet*(), we lookup the struct for the enum in question, and use
45 * the offset to get the int we need.
47 * Sometimes we need to look up a float, a boolean, a bit in a
48 * bitfield, a matrix or other types instead, so we need to track the
49 * type of the value in struct gl_context. And sometimes the value isn't in
50 * struct gl_context but in the drawbuffer, the array object, current texture
51 * unit, or maybe it's a computed value. So we need to also track
52 * where or how to find the value. Finally, we sometimes need to
53 * check that one of a number of extensions are enabled, the GL
54 * version or flush or call _mesa_update_state(). This is done by
55 * attaching optional extra information to the value description
56 * struct, it's sort of like an array of opcodes that describe extra
59 * Putting all this together we end up with struct value_desc below,
60 * and with a couple of macros to help, the table of struct value_desc
61 * is about as concise as the specification in the old python script.
64 #define FLOAT_TO_BOOLEAN(X) ( (X) ? GL_TRUE : GL_FALSE )
65 #define FLOAT_TO_FIXED(F) ( ((F) * 65536.0f > INT_MAX) ? INT_MAX : \
66 ((F) * 65536.0f < INT_MIN) ? INT_MIN : \
67 (GLint) ((F) * 65536.0f) )
69 #define INT_TO_BOOLEAN(I) ( (I) ? GL_TRUE : GL_FALSE )
70 #define INT_TO_FIXED(I) ( ((I) > SHRT_MAX) ? INT_MAX : \
71 ((I) < SHRT_MIN) ? INT_MIN : \
72 (GLint) ((I) * 65536) )
74 #define INT64_TO_BOOLEAN(I) ( (I) ? GL_TRUE : GL_FALSE )
75 #define INT64_TO_INT(I) ( (GLint)((I > INT_MAX) ? INT_MAX : ((I < INT_MIN) ? INT_MIN : (I))) )
77 #define BOOLEAN_TO_INT(B) ( (GLint) (B) )
78 #define BOOLEAN_TO_INT64(B) ( (GLint64) (B) )
79 #define BOOLEAN_TO_FLOAT(B) ( (B) ? 1.0F : 0.0F )
80 #define BOOLEAN_TO_FIXED(B) ( (GLint) ((B) ? 1 : 0) << 16 )
82 #define ENUM_TO_INT64(E) ( (GLint64) (E) )
83 #define ENUM_TO_FIXED(E) (E)
118 enum value_location
{
135 EXTRA_NEW_FRAG_CLAMP
,
136 EXTRA_VALID_DRAW_BUFFER
,
137 EXTRA_VALID_TEXTURE_UNIT
,
138 EXTRA_VALID_CLIP_DISTANCE
,
143 #define NO_EXTRA NULL
148 GLubyte location
; /**< enum value_location */
149 GLubyte type
; /**< enum value_type */
156 GLfloat value_float_4
[4];
157 GLmatrix
*value_matrix
;
159 GLint value_int_4
[4];
163 /* Sigh, see GL_COMPRESSED_TEXTURE_FORMATS_ARB handling */
167 GLboolean value_bool
;
170 #define BUFFER_FIELD(field, type) \
171 LOC_BUFFER, type, offsetof(struct gl_framebuffer, field)
172 #define CONTEXT_FIELD(field, type) \
173 LOC_CONTEXT, type, offsetof(struct gl_context, field)
174 #define ARRAY_FIELD(field, type) \
175 LOC_ARRAY, type, offsetof(struct gl_array_object, field)
176 #undef CONST /* already defined through windows.h */
177 #define CONST(value) \
178 LOC_CONTEXT, TYPE_CONST, value
180 #define BUFFER_INT(field) BUFFER_FIELD(field, TYPE_INT)
181 #define BUFFER_ENUM(field) BUFFER_FIELD(field, TYPE_ENUM)
182 #define BUFFER_BOOL(field) BUFFER_FIELD(field, TYPE_BOOLEAN)
184 #define CONTEXT_INT(field) CONTEXT_FIELD(field, TYPE_INT)
185 #define CONTEXT_INT2(field) CONTEXT_FIELD(field, TYPE_INT_2)
186 #define CONTEXT_INT64(field) CONTEXT_FIELD(field, TYPE_INT64)
187 #define CONTEXT_ENUM(field) CONTEXT_FIELD(field, TYPE_ENUM)
188 #define CONTEXT_ENUM2(field) CONTEXT_FIELD(field, TYPE_ENUM_2)
189 #define CONTEXT_BOOL(field) CONTEXT_FIELD(field, TYPE_BOOLEAN)
190 #define CONTEXT_BIT0(field) CONTEXT_FIELD(field, TYPE_BIT_0)
191 #define CONTEXT_BIT1(field) CONTEXT_FIELD(field, TYPE_BIT_1)
192 #define CONTEXT_BIT2(field) CONTEXT_FIELD(field, TYPE_BIT_2)
193 #define CONTEXT_BIT3(field) CONTEXT_FIELD(field, TYPE_BIT_3)
194 #define CONTEXT_BIT4(field) CONTEXT_FIELD(field, TYPE_BIT_4)
195 #define CONTEXT_BIT5(field) CONTEXT_FIELD(field, TYPE_BIT_5)
196 #define CONTEXT_BIT6(field) CONTEXT_FIELD(field, TYPE_BIT_6)
197 #define CONTEXT_BIT7(field) CONTEXT_FIELD(field, TYPE_BIT_7)
198 #define CONTEXT_FLOAT(field) CONTEXT_FIELD(field, TYPE_FLOAT)
199 #define CONTEXT_FLOAT2(field) CONTEXT_FIELD(field, TYPE_FLOAT_2)
200 #define CONTEXT_FLOAT3(field) CONTEXT_FIELD(field, TYPE_FLOAT_3)
201 #define CONTEXT_FLOAT4(field) CONTEXT_FIELD(field, TYPE_FLOAT_4)
202 #define CONTEXT_MATRIX(field) CONTEXT_FIELD(field, TYPE_MATRIX)
203 #define CONTEXT_MATRIX_T(field) CONTEXT_FIELD(field, TYPE_MATRIX_T)
205 #define ARRAY_INT(field) ARRAY_FIELD(field, TYPE_INT)
206 #define ARRAY_ENUM(field) ARRAY_FIELD(field, TYPE_ENUM)
207 #define ARRAY_BOOL(field) ARRAY_FIELD(field, TYPE_BOOLEAN)
210 offsetof(struct gl_extensions, f)
212 #define EXTRA_EXT(e) \
213 static const int extra_##e[] = { \
217 #define EXTRA_EXT2(e1, e2) \
218 static const int extra_##e1##_##e2[] = { \
219 EXT(e1), EXT(e2), EXTRA_END \
222 /* The 'extra' mechanism is a way to specify extra checks (such as
223 * extensions or specific gl versions) or actions (flush current, new
224 * buffers) that we need to do before looking up an enum. We need to
225 * declare them all up front so we can refer to them in the value_desc
228 static const int extra_new_buffers
[] = {
233 static const int extra_new_frag_clamp
[] = {
234 EXTRA_NEW_FRAG_CLAMP
,
238 static const int extra_valid_draw_buffer
[] = {
239 EXTRA_VALID_DRAW_BUFFER
,
243 static const int extra_valid_texture_unit
[] = {
244 EXTRA_VALID_TEXTURE_UNIT
,
248 static const int extra_valid_clip_distance
[] = {
249 EXTRA_VALID_CLIP_DISTANCE
,
253 static const int extra_flush_current_valid_texture_unit
[] = {
255 EXTRA_VALID_TEXTURE_UNIT
,
259 static const int extra_flush_current
[] = {
264 static const int extra_EXT_secondary_color_flush_current
[] = {
265 EXT(EXT_secondary_color
),
270 static const int extra_EXT_fog_coord_flush_current
[] = {
276 static const int extra_EXT_texture_integer
[] = {
277 EXT(EXT_texture_integer
),
281 static const int extra_GLSL_130
[] = {
286 static const int extra_texture_buffer_object
[] = {
289 EXT(ARB_texture_buffer_object
),
293 static const int extra_ARB_uniform_buffer_object_and_geometry_shader
[] = {
294 EXT(ARB_uniform_buffer_object
),
295 EXT(ARB_geometry_shader4
),
300 EXTRA_EXT(ARB_ES2_compatibility
);
301 EXTRA_EXT(ARB_texture_cube_map
);
302 EXTRA_EXT(MESA_texture_array
);
303 EXTRA_EXT2(EXT_secondary_color
, ARB_vertex_program
);
304 EXTRA_EXT(EXT_secondary_color
);
305 EXTRA_EXT(EXT_fog_coord
);
306 EXTRA_EXT(NV_fog_distance
);
307 EXTRA_EXT(EXT_texture_filter_anisotropic
);
308 EXTRA_EXT(NV_point_sprite
);
309 EXTRA_EXT(NV_texture_rectangle
);
310 EXTRA_EXT(EXT_stencil_two_side
);
311 EXTRA_EXT(EXT_depth_bounds_test
);
312 EXTRA_EXT(ARB_depth_clamp
);
313 EXTRA_EXT(ATI_fragment_shader
);
314 EXTRA_EXT(EXT_framebuffer_blit
);
315 EXTRA_EXT(ARB_shader_objects
);
316 EXTRA_EXT(EXT_provoking_vertex
);
317 EXTRA_EXT(ARB_fragment_shader
);
318 EXTRA_EXT(ARB_fragment_program
);
319 EXTRA_EXT2(ARB_framebuffer_object
, EXT_framebuffer_multisample
);
320 EXTRA_EXT(EXT_framebuffer_object
);
321 EXTRA_EXT(ARB_seamless_cube_map
);
323 EXTRA_EXT(ARB_vertex_shader
);
324 EXTRA_EXT(EXT_transform_feedback
);
325 EXTRA_EXT(ARB_transform_feedback2
);
326 EXTRA_EXT(ARB_transform_feedback3
);
327 EXTRA_EXT(EXT_pixel_buffer_object
);
328 EXTRA_EXT(ARB_vertex_program
);
329 EXTRA_EXT2(NV_point_sprite
, ARB_point_sprite
);
330 EXTRA_EXT2(ARB_vertex_program
, ARB_fragment_program
);
331 EXTRA_EXT(ARB_geometry_shader4
);
332 EXTRA_EXT(ARB_color_buffer_float
);
333 EXTRA_EXT(EXT_framebuffer_sRGB
);
334 EXTRA_EXT(OES_EGL_image_external
);
335 EXTRA_EXT(ARB_blend_func_extended
);
336 EXTRA_EXT(ARB_uniform_buffer_object
);
337 EXTRA_EXT(ARB_timer_query
);
338 EXTRA_EXT(ARB_map_buffer_alignment
);
339 EXTRA_EXT(ARB_texture_cube_map_array
);
342 extra_NV_primitive_restart
[] = {
343 EXT(NV_primitive_restart
),
347 static const int extra_version_30
[] = { EXTRA_VERSION_30
, EXTRA_END
};
348 static const int extra_version_31
[] = { EXTRA_VERSION_31
, EXTRA_END
};
349 static const int extra_version_32
[] = { EXTRA_VERSION_32
, EXTRA_END
};
352 extra_ARB_vertex_program_api_es2
[] = {
353 EXT(ARB_vertex_program
),
358 /* The ReadBuffer get token is valid under either full GL or under
359 * GLES2 if the NV_read_buffer extension is available. */
361 extra_NV_read_buffer_api_gl
[] = {
367 /* This is the big table describing all the enums we accept in
368 * glGet*v(). The table is partitioned into six parts: enums
369 * understood by all GL APIs (OpenGL, GLES and GLES2), enums shared
370 * between OpenGL and GLES, enums exclusive to GLES, etc for the
371 * remaining combinations. To look up the enums valid in a given API
372 * we will use a hash table specific to that API. These tables are in
373 * turn generated at build time and included through get_hash.h.
374 * The different sections are guarded by #if FEATURE_GL etc to make
375 * sure we only compile in the enums we may need. */
377 #include "get_hash.h"
379 /* All we need now is a way to look up the value struct from the enum.
380 * The code generated by gcc for the old generated big switch
381 * statement is a big, balanced, open coded if/else tree, essentially
382 * an unrolled binary search. It would be natural to sort the new
383 * enum table and use bsearch(), but we will use a read-only hash
384 * table instead. bsearch() has a nice guaranteed worst case
385 * performance, but we're also guaranteed to hit that worst case
386 * (log2(n) iterations) for about half the enums. Instead, using an
387 * open addressing hash table, we can find the enum on the first try
388 * for 80% of the enums, 1 collision for 10% and never more than 5
389 * collisions for any enum (typical numbers). And the code is very
390 * simple, even though it feels a little magic. */
394 print_table_stats(int api
)
396 int i
, j
, collisions
[11], count
, hash
, mask
;
397 const struct value_desc
*d
;
398 const char *api_names
[] = {
399 [API_OPENGL_COMPAT
] = "GL",
400 [API_OPENGL_CORE
] = "GL_CORE",
401 [API_OPENGLES
] = "GLES",
402 [API_OPENGLES2
] = "GLES2",
404 const char *api_name
;
406 api_name
= api
< Elements(api_names
) ? api_names
[api
] : "N/A";
408 mask
= Elements(table(api
)) - 1;
409 memset(collisions
, 0, sizeof collisions
);
411 for (i
= 0; i
< Elements(table(api
)); i
++) {
415 d
= &values
[table(api
)[i
]];
416 hash
= (d
->pname
* prime_factor
);
419 if (values
[table(api
)[hash
& mask
]].pname
== d
->pname
)
431 printf("number of enums for %s: %d (total %ld)\n",
432 api_name
, count
, Elements(values
));
433 for (i
= 0; i
< Elements(collisions
) - 1; i
++)
434 if (collisions
[i
] > 0)
435 printf(" %d enums with %d %scollisions\n",
436 collisions
[i
], i
, i
== 10 ? "or more " : "");
441 * Initialize the enum hash for a given API
443 * This is called from one_time_init() to insert the enum values that
444 * are valid for the API in question into the enum hash table.
446 * \param the current context, for determining the API in question
448 void _mesa_init_get_hash(struct gl_context
*ctx
)
456 * Handle irregular enums
458 * Some values don't conform to the "well-known type at context
459 * pointer + offset" pattern, so we have this function to catch all
460 * the corner cases. Typically, it's a computed value or a one-off
461 * pointer to a custom struct or something.
463 * In this case we can't return a pointer to the value, so we'll have
464 * to use the temporary variable 'v' declared back in the calling
465 * glGet*v() function to store the result.
467 * \param ctx the current context
468 * \param d the struct value_desc that describes the enum
469 * \param v pointer to the tmp declared in the calling glGet*v() function
472 find_custom_value(struct gl_context
*ctx
, const struct value_desc
*d
, union value
*v
)
474 struct gl_buffer_object
**buffer_obj
;
475 struct gl_client_array
*array
;
479 case GL_MAJOR_VERSION
:
480 v
->value_int
= ctx
->Version
/ 10;
482 case GL_MINOR_VERSION
:
483 v
->value_int
= ctx
->Version
% 10;
489 case GL_TEXTURE_1D_ARRAY_EXT
:
490 case GL_TEXTURE_2D_ARRAY_EXT
:
491 case GL_TEXTURE_CUBE_MAP_ARB
:
492 case GL_TEXTURE_RECTANGLE_NV
:
493 case GL_TEXTURE_EXTERNAL_OES
:
494 v
->value_bool
= _mesa_IsEnabled(d
->pname
);
497 case GL_LINE_STIPPLE_PATTERN
:
498 /* This is the only GLushort, special case it here by promoting
499 * to an int rather than introducing a new type. */
500 v
->value_int
= ctx
->Line
.StipplePattern
;
503 case GL_CURRENT_RASTER_TEXTURE_COORDS
:
504 unit
= ctx
->Texture
.CurrentUnit
;
505 v
->value_float_4
[0] = ctx
->Current
.RasterTexCoords
[unit
][0];
506 v
->value_float_4
[1] = ctx
->Current
.RasterTexCoords
[unit
][1];
507 v
->value_float_4
[2] = ctx
->Current
.RasterTexCoords
[unit
][2];
508 v
->value_float_4
[3] = ctx
->Current
.RasterTexCoords
[unit
][3];
511 case GL_CURRENT_TEXTURE_COORDS
:
512 unit
= ctx
->Texture
.CurrentUnit
;
513 v
->value_float_4
[0] = ctx
->Current
.Attrib
[VERT_ATTRIB_TEX0
+ unit
][0];
514 v
->value_float_4
[1] = ctx
->Current
.Attrib
[VERT_ATTRIB_TEX0
+ unit
][1];
515 v
->value_float_4
[2] = ctx
->Current
.Attrib
[VERT_ATTRIB_TEX0
+ unit
][2];
516 v
->value_float_4
[3] = ctx
->Current
.Attrib
[VERT_ATTRIB_TEX0
+ unit
][3];
519 case GL_COLOR_WRITEMASK
:
520 v
->value_int_4
[0] = ctx
->Color
.ColorMask
[0][RCOMP
] ? 1 : 0;
521 v
->value_int_4
[1] = ctx
->Color
.ColorMask
[0][GCOMP
] ? 1 : 0;
522 v
->value_int_4
[2] = ctx
->Color
.ColorMask
[0][BCOMP
] ? 1 : 0;
523 v
->value_int_4
[3] = ctx
->Color
.ColorMask
[0][ACOMP
] ? 1 : 0;
527 v
->value_bool
= ctx
->Current
.Attrib
[VERT_ATTRIB_EDGEFLAG
][0] == 1.0;
531 v
->value_enum
= ctx
->ReadBuffer
->ColorReadBuffer
;
534 case GL_MAP2_GRID_DOMAIN
:
535 v
->value_float_4
[0] = ctx
->Eval
.MapGrid2u1
;
536 v
->value_float_4
[1] = ctx
->Eval
.MapGrid2u2
;
537 v
->value_float_4
[2] = ctx
->Eval
.MapGrid2v1
;
538 v
->value_float_4
[3] = ctx
->Eval
.MapGrid2v2
;
541 case GL_TEXTURE_STACK_DEPTH
:
542 unit
= ctx
->Texture
.CurrentUnit
;
543 v
->value_int
= ctx
->TextureMatrixStack
[unit
].Depth
+ 1;
545 case GL_TEXTURE_MATRIX
:
546 unit
= ctx
->Texture
.CurrentUnit
;
547 v
->value_matrix
= ctx
->TextureMatrixStack
[unit
].Top
;
550 case GL_TEXTURE_COORD_ARRAY
:
551 case GL_TEXTURE_COORD_ARRAY_SIZE
:
552 case GL_TEXTURE_COORD_ARRAY_TYPE
:
553 case GL_TEXTURE_COORD_ARRAY_STRIDE
:
554 array
= &ctx
->Array
.ArrayObj
->VertexAttrib
[VERT_ATTRIB_TEX(ctx
->Array
.ActiveTexture
)];
555 v
->value_int
= *(GLuint
*) ((char *) array
+ d
->offset
);
558 case GL_ACTIVE_TEXTURE_ARB
:
559 v
->value_int
= GL_TEXTURE0_ARB
+ ctx
->Texture
.CurrentUnit
;
561 case GL_CLIENT_ACTIVE_TEXTURE_ARB
:
562 v
->value_int
= GL_TEXTURE0_ARB
+ ctx
->Array
.ActiveTexture
;
565 case GL_MODELVIEW_STACK_DEPTH
:
566 case GL_PROJECTION_STACK_DEPTH
:
567 v
->value_int
= *(GLint
*) ((char *) ctx
+ d
->offset
) + 1;
570 case GL_MAX_TEXTURE_SIZE
:
571 case GL_MAX_3D_TEXTURE_SIZE
:
572 case GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB
:
573 p
= (GLuint
*) ((char *) ctx
+ d
->offset
);
574 v
->value_int
= 1 << (*p
- 1);
578 v
->value_int_4
[0] = ctx
->Scissor
.X
;
579 v
->value_int_4
[1] = ctx
->Scissor
.Y
;
580 v
->value_int_4
[2] = ctx
->Scissor
.Width
;
581 v
->value_int_4
[3] = ctx
->Scissor
.Height
;
586 ctx
->ListState
.CurrentList
? ctx
->ListState
.CurrentList
->Name
: 0;
589 if (!ctx
->CompileFlag
)
591 else if (ctx
->ExecuteFlag
)
592 v
->value_enum
= GL_COMPILE_AND_EXECUTE
;
594 v
->value_enum
= GL_COMPILE
;
598 v
->value_int_4
[0] = ctx
->Viewport
.X
;
599 v
->value_int_4
[1] = ctx
->Viewport
.Y
;
600 v
->value_int_4
[2] = ctx
->Viewport
.Width
;
601 v
->value_int_4
[3] = ctx
->Viewport
.Height
;
604 case GL_ACTIVE_STENCIL_FACE_EXT
:
605 v
->value_enum
= ctx
->Stencil
.ActiveFace
? GL_BACK
: GL_FRONT
;
608 case GL_STENCIL_FAIL
:
609 v
->value_enum
= ctx
->Stencil
.FailFunc
[ctx
->Stencil
.ActiveFace
];
611 case GL_STENCIL_FUNC
:
612 v
->value_enum
= ctx
->Stencil
.Function
[ctx
->Stencil
.ActiveFace
];
614 case GL_STENCIL_PASS_DEPTH_FAIL
:
615 v
->value_enum
= ctx
->Stencil
.ZFailFunc
[ctx
->Stencil
.ActiveFace
];
617 case GL_STENCIL_PASS_DEPTH_PASS
:
618 v
->value_enum
= ctx
->Stencil
.ZPassFunc
[ctx
->Stencil
.ActiveFace
];
621 v
->value_int
= ctx
->Stencil
.Ref
[ctx
->Stencil
.ActiveFace
];
623 case GL_STENCIL_VALUE_MASK
:
624 v
->value_int
= ctx
->Stencil
.ValueMask
[ctx
->Stencil
.ActiveFace
];
626 case GL_STENCIL_WRITEMASK
:
627 v
->value_int
= ctx
->Stencil
.WriteMask
[ctx
->Stencil
.ActiveFace
];
630 case GL_NUM_EXTENSIONS
:
631 v
->value_int
= _mesa_get_extension_count(ctx
);
634 case GL_IMPLEMENTATION_COLOR_READ_TYPE_OES
:
635 v
->value_int
= _mesa_get_color_read_type(ctx
);
637 case GL_IMPLEMENTATION_COLOR_READ_FORMAT_OES
:
638 v
->value_int
= _mesa_get_color_read_format(ctx
);
641 case GL_CURRENT_MATRIX_STACK_DEPTH_ARB
:
642 v
->value_int
= ctx
->CurrentStack
->Depth
+ 1;
644 case GL_CURRENT_MATRIX_ARB
:
645 case GL_TRANSPOSE_CURRENT_MATRIX_ARB
:
646 v
->value_matrix
= ctx
->CurrentStack
->Top
;
649 case GL_NUM_COMPRESSED_TEXTURE_FORMATS_ARB
:
650 v
->value_int
= _mesa_get_compressed_formats(ctx
, NULL
);
652 case GL_COMPRESSED_TEXTURE_FORMATS_ARB
:
654 _mesa_get_compressed_formats(ctx
, v
->value_int_n
.ints
);
655 ASSERT(v
->value_int_n
.n
<= 100);
658 case GL_MAX_VARYING_FLOATS_ARB
:
659 v
->value_int
= ctx
->Const
.MaxVarying
* 4;
662 /* Various object names */
664 case GL_TEXTURE_BINDING_1D
:
665 case GL_TEXTURE_BINDING_2D
:
666 case GL_TEXTURE_BINDING_3D
:
667 case GL_TEXTURE_BINDING_1D_ARRAY_EXT
:
668 case GL_TEXTURE_BINDING_2D_ARRAY_EXT
:
669 case GL_TEXTURE_BINDING_CUBE_MAP_ARB
:
670 case GL_TEXTURE_BINDING_RECTANGLE_NV
:
671 case GL_TEXTURE_BINDING_EXTERNAL_OES
:
672 case GL_TEXTURE_BINDING_CUBE_MAP_ARRAY
:
673 unit
= ctx
->Texture
.CurrentUnit
;
675 ctx
->Texture
.Unit
[unit
].CurrentTex
[d
->offset
]->Name
;
678 /* GL_ARB_vertex_buffer_object */
679 case GL_VERTEX_ARRAY_BUFFER_BINDING_ARB
:
680 case GL_NORMAL_ARRAY_BUFFER_BINDING_ARB
:
681 case GL_COLOR_ARRAY_BUFFER_BINDING_ARB
:
682 case GL_INDEX_ARRAY_BUFFER_BINDING_ARB
:
683 case GL_EDGE_FLAG_ARRAY_BUFFER_BINDING_ARB
:
684 case GL_SECONDARY_COLOR_ARRAY_BUFFER_BINDING_ARB
:
685 case GL_FOG_COORDINATE_ARRAY_BUFFER_BINDING_ARB
:
686 buffer_obj
= (struct gl_buffer_object
**)
687 ((char *) ctx
->Array
.ArrayObj
+ d
->offset
);
688 v
->value_int
= (*buffer_obj
)->Name
;
690 case GL_ARRAY_BUFFER_BINDING_ARB
:
691 v
->value_int
= ctx
->Array
.ArrayBufferObj
->Name
;
693 case GL_TEXTURE_COORD_ARRAY_BUFFER_BINDING_ARB
:
695 ctx
->Array
.ArrayObj
->VertexAttrib
[VERT_ATTRIB_TEX(ctx
->Array
.ActiveTexture
)].BufferObj
->Name
;
697 case GL_ELEMENT_ARRAY_BUFFER_BINDING_ARB
:
698 v
->value_int
= ctx
->Array
.ArrayObj
->ElementArrayBufferObj
->Name
;
701 /* ARB_copy_buffer */
702 case GL_COPY_READ_BUFFER
:
703 v
->value_int
= ctx
->CopyReadBuffer
->Name
;
705 case GL_COPY_WRITE_BUFFER
:
706 v
->value_int
= ctx
->CopyWriteBuffer
->Name
;
709 case GL_PIXEL_PACK_BUFFER_BINDING_EXT
:
710 v
->value_int
= ctx
->Pack
.BufferObj
->Name
;
712 case GL_PIXEL_UNPACK_BUFFER_BINDING_EXT
:
713 v
->value_int
= ctx
->Unpack
.BufferObj
->Name
;
715 case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING
:
716 v
->value_int
= ctx
->TransformFeedback
.CurrentBuffer
->Name
;
718 case GL_TRANSFORM_FEEDBACK_BUFFER_PAUSED
:
719 v
->value_int
= ctx
->TransformFeedback
.CurrentObject
->Paused
;
721 case GL_TRANSFORM_FEEDBACK_BUFFER_ACTIVE
:
722 v
->value_int
= ctx
->TransformFeedback
.CurrentObject
->Active
;
724 case GL_TRANSFORM_FEEDBACK_BINDING
:
725 v
->value_int
= ctx
->TransformFeedback
.CurrentObject
->Name
;
727 case GL_CURRENT_PROGRAM
:
729 ctx
->Shader
.ActiveProgram
? ctx
->Shader
.ActiveProgram
->Name
: 0;
731 case GL_READ_FRAMEBUFFER_BINDING_EXT
:
732 v
->value_int
= ctx
->ReadBuffer
->Name
;
734 case GL_RENDERBUFFER_BINDING_EXT
:
736 ctx
->CurrentRenderbuffer
? ctx
->CurrentRenderbuffer
->Name
: 0;
738 case GL_POINT_SIZE_ARRAY_BUFFER_BINDING_OES
:
739 v
->value_int
= ctx
->Array
.ArrayObj
->VertexAttrib
[VERT_ATTRIB_POINT_SIZE
].BufferObj
->Name
;
743 if(ctx
->Color
._ClampFragmentColor
)
744 COPY_4FV(v
->value_float_4
, ctx
->Fog
.Color
);
746 COPY_4FV(v
->value_float_4
, ctx
->Fog
.ColorUnclamped
);
748 case GL_COLOR_CLEAR_VALUE
:
749 if(ctx
->Color
._ClampFragmentColor
) {
750 v
->value_float_4
[0] = CLAMP(ctx
->Color
.ClearColor
.f
[0], 0.0F
, 1.0F
);
751 v
->value_float_4
[1] = CLAMP(ctx
->Color
.ClearColor
.f
[1], 0.0F
, 1.0F
);
752 v
->value_float_4
[2] = CLAMP(ctx
->Color
.ClearColor
.f
[2], 0.0F
, 1.0F
);
753 v
->value_float_4
[3] = CLAMP(ctx
->Color
.ClearColor
.f
[3], 0.0F
, 1.0F
);
755 COPY_4FV(v
->value_float_4
, ctx
->Color
.ClearColor
.f
);
757 case GL_BLEND_COLOR_EXT
:
758 if(ctx
->Color
._ClampFragmentColor
)
759 COPY_4FV(v
->value_float_4
, ctx
->Color
.BlendColor
);
761 COPY_4FV(v
->value_float_4
, ctx
->Color
.BlendColorUnclamped
);
763 case GL_ALPHA_TEST_REF
:
764 if(ctx
->Color
._ClampFragmentColor
)
765 v
->value_float
= ctx
->Color
.AlphaRef
;
767 v
->value_float
= ctx
->Color
.AlphaRefUnclamped
;
769 case GL_MAX_VERTEX_UNIFORM_VECTORS
:
770 v
->value_int
= ctx
->Const
.VertexProgram
.MaxUniformComponents
/ 4;
773 case GL_MAX_FRAGMENT_UNIFORM_VECTORS
:
774 v
->value_int
= ctx
->Const
.FragmentProgram
.MaxUniformComponents
/ 4;
777 /* GL_ARB_texture_buffer_object */
778 case GL_TEXTURE_BUFFER_ARB
:
779 v
->value_int
= ctx
->Texture
.BufferObject
->Name
;
781 case GL_TEXTURE_BINDING_BUFFER_ARB
:
782 unit
= ctx
->Texture
.CurrentUnit
;
784 ctx
->Texture
.Unit
[unit
].CurrentTex
[TEXTURE_BUFFER_INDEX
]->Name
;
786 case GL_TEXTURE_BUFFER_DATA_STORE_BINDING_ARB
:
788 struct gl_buffer_object
*buf
=
789 ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
]
790 .CurrentTex
[TEXTURE_BUFFER_INDEX
]->BufferObject
;
791 v
->value_int
= buf
? buf
->Name
: 0;
794 case GL_TEXTURE_BUFFER_FORMAT_ARB
:
795 v
->value_int
= ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
]
796 .CurrentTex
[TEXTURE_BUFFER_INDEX
]->BufferObjectFormat
;
799 /* GL_ARB_sampler_objects */
800 case GL_SAMPLER_BINDING
:
802 struct gl_sampler_object
*samp
=
803 ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
].Sampler
;
804 v
->value_int
= samp
? samp
->Name
: 0;
807 /* GL_ARB_uniform_buffer_object */
808 case GL_UNIFORM_BUFFER_BINDING
:
809 v
->value_int
= ctx
->UniformBuffer
->Name
;
811 /* GL_ARB_timer_query */
813 if (ctx
->Driver
.GetTimestamp
) {
814 v
->value_int64
= ctx
->Driver
.GetTimestamp(ctx
);
817 _mesa_problem(ctx
, "driver doesn't implement GetTimestamp");
824 * Check extra constraints on a struct value_desc descriptor
826 * If a struct value_desc has a non-NULL extra pointer, it means that
827 * there are a number of extra constraints to check or actions to
828 * perform. The extras is just an integer array where each integer
829 * encode different constraints or actions.
831 * \param ctx current context
832 * \param func name of calling glGet*v() function for error reporting
833 * \param d the struct value_desc that has the extra constraints
835 * \return GL_FALSE if one of the constraints was not satisfied,
839 check_extra(struct gl_context
*ctx
, const char *func
, const struct value_desc
*d
)
841 const GLuint version
= ctx
->Version
;
847 for (e
= d
->extra
; *e
!= EXTRA_END
; e
++)
849 case EXTRA_VERSION_30
:
855 case EXTRA_VERSION_31
:
861 case EXTRA_VERSION_32
:
867 case EXTRA_NEW_FRAG_CLAMP
:
868 if (ctx
->NewState
& (_NEW_BUFFERS
| _NEW_FRAG_CLAMP
))
869 _mesa_update_state(ctx
);
872 if (ctx
->API
== API_OPENGLES2
) {
878 if (_mesa_is_desktop_gl(ctx
)) {
883 case EXTRA_API_GL_CORE
:
884 if (ctx
->API
== API_OPENGL_CORE
) {
889 case EXTRA_NEW_BUFFERS
:
890 if (ctx
->NewState
& _NEW_BUFFERS
)
891 _mesa_update_state(ctx
);
893 case EXTRA_FLUSH_CURRENT
:
894 FLUSH_CURRENT(ctx
, 0);
896 case EXTRA_VALID_DRAW_BUFFER
:
897 if (d
->pname
- GL_DRAW_BUFFER0_ARB
>= ctx
->Const
.MaxDrawBuffers
) {
898 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(draw buffer %u)",
899 func
, d
->pname
- GL_DRAW_BUFFER0_ARB
);
903 case EXTRA_VALID_TEXTURE_UNIT
:
904 if (ctx
->Texture
.CurrentUnit
>= ctx
->Const
.MaxTextureCoordUnits
) {
905 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(texture %u)",
906 func
, ctx
->Texture
.CurrentUnit
);
910 case EXTRA_VALID_CLIP_DISTANCE
:
911 if (d
->pname
- GL_CLIP_DISTANCE0
>= ctx
->Const
.MaxClipPlanes
) {
912 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(clip distance %u)",
913 func
, d
->pname
- GL_CLIP_DISTANCE0
);
918 if (ctx
->Const
.GLSLVersion
>= 130) {
925 default: /* *e is a offset into the extension struct */
927 if (*(GLboolean
*) ((char *) &ctx
->Extensions
+ *e
))
932 if (total
> 0 && enabled
== 0) {
933 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=%s)", func
,
934 _mesa_lookup_enum_by_nr(d
->pname
));
941 static const struct value_desc error_value
=
942 { 0, 0, TYPE_INVALID
, NO_OFFSET
, NO_EXTRA
};
945 * Find the struct value_desc corresponding to the enum 'pname'.
947 * We hash the enum value to get an index into the 'table' array,
948 * which holds the index in the 'values' array of struct value_desc.
949 * Once we've found the entry, we do the extra checks, if any, then
950 * look up the value and return a pointer to it.
952 * If the value has to be computed (for example, it's the result of a
953 * function call or we need to add 1 to it), we use the tmp 'v' to
956 * \param func name of glGet*v() func for error reporting
957 * \param pname the enum value we're looking up
958 * \param p is were we return the pointer to the value
959 * \param v a tmp union value variable in the calling glGet*v() function
961 * \return the struct value_desc corresponding to the enum or a struct
962 * value_desc of TYPE_INVALID if not found. This lets the calling
963 * glGet*v() function jump right into a switch statement and
964 * handle errors there instead of having to check for NULL.
966 static const struct value_desc
*
967 find_value(const char *func
, GLenum pname
, void **p
, union value
*v
)
969 GET_CURRENT_CONTEXT(ctx
);
970 struct gl_texture_unit
*unit
;
972 const struct value_desc
*d
;
976 mask
= Elements(table(api
)) - 1;
977 hash
= (pname
* prime_factor
);
979 int idx
= table(api
)[hash
& mask
];
981 /* If the enum isn't valid, the hash walk ends with index 0,
982 * pointing to the first entry of values[] which doesn't hold
984 if (unlikely(idx
== 0)) {
985 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=%s)", func
,
986 _mesa_lookup_enum_by_nr(pname
));
991 if (likely(d
->pname
== pname
))
997 if (unlikely(d
->extra
&& !check_extra(ctx
, func
, d
)))
1000 switch (d
->location
) {
1002 *p
= ((char *) ctx
->DrawBuffer
+ d
->offset
);
1005 *p
= ((char *) ctx
+ d
->offset
);
1008 *p
= ((char *) ctx
->Array
.ArrayObj
+ d
->offset
);
1011 unit
= &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1012 *p
= ((char *) unit
+ d
->offset
);
1015 find_custom_value(ctx
, d
, v
);
1023 /* silence warning */
1024 return &error_value
;
1027 static const int transpose
[] = {
1035 _mesa_GetBooleanv(GLenum pname
, GLboolean
*params
)
1037 const struct value_desc
*d
;
1042 GET_CURRENT_CONTEXT(ctx
);
1044 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1046 d
= find_value("glGetBooleanv", pname
, &p
, &v
);
1051 params
[0] = INT_TO_BOOLEAN(d
->offset
);
1056 params
[3] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[3]);
1059 params
[2] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[2]);
1062 params
[1] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[1]);
1065 params
[0] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[0]);
1069 params
[0] = FLOAT_TO_BOOLEAN(((GLdouble
*) p
)[0]);
1073 params
[3] = INT_TO_BOOLEAN(((GLint
*) p
)[3]);
1075 params
[2] = INT_TO_BOOLEAN(((GLint
*) p
)[2]);
1078 params
[1] = INT_TO_BOOLEAN(((GLint
*) p
)[1]);
1081 params
[0] = INT_TO_BOOLEAN(((GLint
*) p
)[0]);
1085 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1086 params
[i
] = INT_TO_BOOLEAN(v
.value_int_n
.ints
[i
]);
1090 params
[0] = INT64_TO_BOOLEAN(((GLint64
*) p
)[0]);
1094 params
[0] = ((GLboolean
*) p
)[0];
1098 m
= *(GLmatrix
**) p
;
1099 for (i
= 0; i
< 16; i
++)
1100 params
[i
] = FLOAT_TO_BOOLEAN(m
->m
[i
]);
1104 m
= *(GLmatrix
**) p
;
1105 for (i
= 0; i
< 16; i
++)
1106 params
[i
] = FLOAT_TO_BOOLEAN(m
->m
[transpose
[i
]]);
1117 shift
= d
->type
- TYPE_BIT_0
;
1118 params
[0] = (*(GLbitfield
*) p
>> shift
) & 1;
1124 _mesa_GetFloatv(GLenum pname
, GLfloat
*params
)
1126 const struct value_desc
*d
;
1131 GET_CURRENT_CONTEXT(ctx
);
1133 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1135 d
= find_value("glGetFloatv", pname
, &p
, &v
);
1140 params
[0] = (GLfloat
) d
->offset
;
1145 params
[3] = ((GLfloat
*) p
)[3];
1148 params
[2] = ((GLfloat
*) p
)[2];
1151 params
[1] = ((GLfloat
*) p
)[1];
1154 params
[0] = ((GLfloat
*) p
)[0];
1158 params
[0] = (GLfloat
) (((GLdouble
*) p
)[0]);
1162 params
[3] = (GLfloat
) (((GLint
*) p
)[3]);
1164 params
[2] = (GLfloat
) (((GLint
*) p
)[2]);
1167 params
[1] = (GLfloat
) (((GLint
*) p
)[1]);
1170 params
[0] = (GLfloat
) (((GLint
*) p
)[0]);
1174 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1175 params
[i
] = INT_TO_FLOAT(v
.value_int_n
.ints
[i
]);
1179 params
[0] = (GLfloat
) (((GLint64
*) p
)[0]);
1183 params
[0] = BOOLEAN_TO_FLOAT(*(GLboolean
*) p
);
1187 m
= *(GLmatrix
**) p
;
1188 for (i
= 0; i
< 16; i
++)
1189 params
[i
] = m
->m
[i
];
1193 m
= *(GLmatrix
**) p
;
1194 for (i
= 0; i
< 16; i
++)
1195 params
[i
] = m
->m
[transpose
[i
]];
1206 shift
= d
->type
- TYPE_BIT_0
;
1207 params
[0] = BOOLEAN_TO_FLOAT((*(GLbitfield
*) p
>> shift
) & 1);
1213 _mesa_GetIntegerv(GLenum pname
, GLint
*params
)
1215 const struct value_desc
*d
;
1220 GET_CURRENT_CONTEXT(ctx
);
1222 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1224 d
= find_value("glGetIntegerv", pname
, &p
, &v
);
1229 params
[0] = d
->offset
;
1233 params
[3] = IROUND(((GLfloat
*) p
)[3]);
1235 params
[2] = IROUND(((GLfloat
*) p
)[2]);
1237 params
[1] = IROUND(((GLfloat
*) p
)[1]);
1239 params
[0] = IROUND(((GLfloat
*) p
)[0]);
1243 params
[3] = FLOAT_TO_INT(((GLfloat
*) p
)[3]);
1245 params
[2] = FLOAT_TO_INT(((GLfloat
*) p
)[2]);
1247 params
[1] = FLOAT_TO_INT(((GLfloat
*) p
)[1]);
1249 params
[0] = FLOAT_TO_INT(((GLfloat
*) p
)[0]);
1253 params
[0] = FLOAT_TO_INT(((GLdouble
*) p
)[0]);
1257 params
[3] = ((GLint
*) p
)[3];
1259 params
[2] = ((GLint
*) p
)[2];
1262 params
[1] = ((GLint
*) p
)[1];
1265 params
[0] = ((GLint
*) p
)[0];
1269 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1270 params
[i
] = v
.value_int_n
.ints
[i
];
1274 params
[0] = INT64_TO_INT(((GLint64
*) p
)[0]);
1278 params
[0] = BOOLEAN_TO_INT(*(GLboolean
*) p
);
1282 m
= *(GLmatrix
**) p
;
1283 for (i
= 0; i
< 16; i
++)
1284 params
[i
] = FLOAT_TO_INT(m
->m
[i
]);
1288 m
= *(GLmatrix
**) p
;
1289 for (i
= 0; i
< 16; i
++)
1290 params
[i
] = FLOAT_TO_INT(m
->m
[transpose
[i
]]);
1301 shift
= d
->type
- TYPE_BIT_0
;
1302 params
[0] = (*(GLbitfield
*) p
>> shift
) & 1;
1308 _mesa_GetInteger64v(GLenum pname
, GLint64
*params
)
1310 const struct value_desc
*d
;
1315 GET_CURRENT_CONTEXT(ctx
);
1317 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1319 d
= find_value("glGetInteger64v", pname
, &p
, &v
);
1324 params
[0] = d
->offset
;
1328 params
[3] = IROUND64(((GLfloat
*) p
)[3]);
1330 params
[2] = IROUND64(((GLfloat
*) p
)[2]);
1332 params
[1] = IROUND64(((GLfloat
*) p
)[1]);
1334 params
[0] = IROUND64(((GLfloat
*) p
)[0]);
1338 params
[3] = FLOAT_TO_INT64(((GLfloat
*) p
)[3]);
1340 params
[2] = FLOAT_TO_INT64(((GLfloat
*) p
)[2]);
1342 params
[1] = FLOAT_TO_INT64(((GLfloat
*) p
)[1]);
1344 params
[0] = FLOAT_TO_INT64(((GLfloat
*) p
)[0]);
1348 params
[0] = FLOAT_TO_INT64(((GLdouble
*) p
)[0]);
1352 params
[3] = ((GLint
*) p
)[3];
1354 params
[2] = ((GLint
*) p
)[2];
1357 params
[1] = ((GLint
*) p
)[1];
1360 params
[0] = ((GLint
*) p
)[0];
1364 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1365 params
[i
] = INT_TO_BOOLEAN(v
.value_int_n
.ints
[i
]);
1369 params
[0] = ((GLint64
*) p
)[0];
1373 params
[0] = ((GLboolean
*) p
)[0];
1377 m
= *(GLmatrix
**) p
;
1378 for (i
= 0; i
< 16; i
++)
1379 params
[i
] = FLOAT_TO_INT64(m
->m
[i
]);
1383 m
= *(GLmatrix
**) p
;
1384 for (i
= 0; i
< 16; i
++)
1385 params
[i
] = FLOAT_TO_INT64(m
->m
[transpose
[i
]]);
1396 shift
= d
->type
- TYPE_BIT_0
;
1397 params
[0] = (*(GLbitfield
*) p
>> shift
) & 1;
1403 _mesa_GetDoublev(GLenum pname
, GLdouble
*params
)
1405 const struct value_desc
*d
;
1410 GET_CURRENT_CONTEXT(ctx
);
1412 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1414 d
= find_value("glGetDoublev", pname
, &p
, &v
);
1419 params
[0] = d
->offset
;
1424 params
[3] = ((GLfloat
*) p
)[3];
1427 params
[2] = ((GLfloat
*) p
)[2];
1430 params
[1] = ((GLfloat
*) p
)[1];
1433 params
[0] = ((GLfloat
*) p
)[0];
1437 params
[0] = ((GLdouble
*) p
)[0];
1441 params
[3] = ((GLint
*) p
)[3];
1443 params
[2] = ((GLint
*) p
)[2];
1446 params
[1] = ((GLint
*) p
)[1];
1449 params
[0] = ((GLint
*) p
)[0];
1453 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1454 params
[i
] = v
.value_int_n
.ints
[i
];
1458 params
[0] = (GLdouble
) (((GLint64
*) p
)[0]);
1462 params
[0] = *(GLboolean
*) p
;
1466 m
= *(GLmatrix
**) p
;
1467 for (i
= 0; i
< 16; i
++)
1468 params
[i
] = m
->m
[i
];
1472 m
= *(GLmatrix
**) p
;
1473 for (i
= 0; i
< 16; i
++)
1474 params
[i
] = m
->m
[transpose
[i
]];
1485 shift
= d
->type
- TYPE_BIT_0
;
1486 params
[0] = (*(GLbitfield
*) p
>> shift
) & 1;
1491 static enum value_type
1492 find_value_indexed(const char *func
, GLenum pname
, GLuint index
, union value
*v
)
1494 GET_CURRENT_CONTEXT(ctx
);
1499 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1501 if (!ctx
->Extensions
.EXT_draw_buffers2
)
1503 v
->value_int
= (ctx
->Color
.BlendEnabled
>> index
) & 1;
1508 case GL_BLEND_SRC_RGB
:
1509 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1511 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1513 v
->value_int
= ctx
->Color
.Blend
[index
].SrcRGB
;
1515 case GL_BLEND_SRC_ALPHA
:
1516 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1518 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1520 v
->value_int
= ctx
->Color
.Blend
[index
].SrcA
;
1524 case GL_BLEND_DST_RGB
:
1525 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1527 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1529 v
->value_int
= ctx
->Color
.Blend
[index
].DstRGB
;
1531 case GL_BLEND_DST_ALPHA
:
1532 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1534 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1536 v
->value_int
= ctx
->Color
.Blend
[index
].DstA
;
1538 case GL_BLEND_EQUATION_RGB
:
1539 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1541 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1543 v
->value_int
= ctx
->Color
.Blend
[index
].EquationRGB
;
1545 case GL_BLEND_EQUATION_ALPHA
:
1546 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1548 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1550 v
->value_int
= ctx
->Color
.Blend
[index
].EquationA
;
1553 case GL_COLOR_WRITEMASK
:
1554 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1556 if (!ctx
->Extensions
.EXT_draw_buffers2
)
1558 v
->value_int_4
[0] = ctx
->Color
.ColorMask
[index
][RCOMP
] ? 1 : 0;
1559 v
->value_int_4
[1] = ctx
->Color
.ColorMask
[index
][GCOMP
] ? 1 : 0;
1560 v
->value_int_4
[2] = ctx
->Color
.ColorMask
[index
][BCOMP
] ? 1 : 0;
1561 v
->value_int_4
[3] = ctx
->Color
.ColorMask
[index
][ACOMP
] ? 1 : 0;
1564 case GL_TRANSFORM_FEEDBACK_BUFFER_START
:
1565 if (index
>= ctx
->Const
.MaxTransformFeedbackBuffers
)
1567 if (!ctx
->Extensions
.EXT_transform_feedback
)
1569 v
->value_int64
= ctx
->TransformFeedback
.CurrentObject
->Offset
[index
];
1572 case GL_TRANSFORM_FEEDBACK_BUFFER_SIZE
:
1573 if (index
>= ctx
->Const
.MaxTransformFeedbackBuffers
)
1575 if (!ctx
->Extensions
.EXT_transform_feedback
)
1577 v
->value_int64
= ctx
->TransformFeedback
.CurrentObject
->Size
[index
];
1580 case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING
:
1581 if (index
>= ctx
->Const
.MaxTransformFeedbackBuffers
)
1583 if (!ctx
->Extensions
.EXT_transform_feedback
)
1585 v
->value_int
= ctx
->TransformFeedback
.CurrentObject
->BufferNames
[index
];
1588 case GL_UNIFORM_BUFFER_BINDING
:
1589 if (index
>= ctx
->Const
.MaxUniformBufferBindings
)
1591 if (!ctx
->Extensions
.ARB_uniform_buffer_object
)
1593 v
->value_int
= ctx
->UniformBufferBindings
[index
].BufferObject
->Name
;
1596 case GL_UNIFORM_BUFFER_START
:
1597 if (index
>= ctx
->Const
.MaxUniformBufferBindings
)
1599 if (!ctx
->Extensions
.ARB_uniform_buffer_object
)
1601 v
->value_int
= ctx
->UniformBufferBindings
[index
].Offset
;
1604 case GL_UNIFORM_BUFFER_SIZE
:
1605 if (index
>= ctx
->Const
.MaxUniformBufferBindings
)
1607 if (!ctx
->Extensions
.ARB_uniform_buffer_object
)
1609 v
->value_int
= ctx
->UniformBufferBindings
[index
].Size
;
1614 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=%s)", func
,
1615 _mesa_lookup_enum_by_nr(pname
));
1616 return TYPE_INVALID
;
1618 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(pname=%s)", func
,
1619 _mesa_lookup_enum_by_nr(pname
));
1620 return TYPE_INVALID
;
1624 _mesa_GetBooleani_v( GLenum pname
, GLuint index
, GLboolean
*params
)
1627 enum value_type type
=
1628 find_value_indexed("glGetBooleanIndexedv", pname
, index
, &v
);
1632 params
[0] = INT_TO_BOOLEAN(v
.value_int
);
1635 params
[0] = INT_TO_BOOLEAN(v
.value_int_4
[0]);
1636 params
[1] = INT_TO_BOOLEAN(v
.value_int_4
[1]);
1637 params
[2] = INT_TO_BOOLEAN(v
.value_int_4
[2]);
1638 params
[3] = INT_TO_BOOLEAN(v
.value_int_4
[3]);
1641 params
[0] = INT64_TO_BOOLEAN(v
.value_int
);
1644 ; /* nothing - GL error was recorded */
1649 _mesa_GetIntegeri_v( GLenum pname
, GLuint index
, GLint
*params
)
1652 enum value_type type
=
1653 find_value_indexed("glGetIntegerIndexedv", pname
, index
, &v
);
1657 params
[0] = v
.value_int
;
1660 params
[0] = v
.value_int_4
[0];
1661 params
[1] = v
.value_int_4
[1];
1662 params
[2] = v
.value_int_4
[2];
1663 params
[3] = v
.value_int_4
[3];
1666 params
[0] = INT64_TO_INT(v
.value_int
);
1669 ; /* nothing - GL error was recorded */
1674 _mesa_GetInteger64Indexedv( GLenum pname
, GLuint index
, GLint64
*params
)
1677 enum value_type type
=
1678 find_value_indexed("glGetIntegerIndexedv", pname
, index
, &v
);
1682 params
[0] = v
.value_int
;
1685 params
[0] = v
.value_int_4
[0];
1686 params
[1] = v
.value_int_4
[1];
1687 params
[2] = v
.value_int_4
[2];
1688 params
[3] = v
.value_int_4
[3];
1691 params
[0] = v
.value_int
;
1694 ; /* nothing - GL error was recorded */
1699 _mesa_GetFixedv(GLenum pname
, GLfixed
*params
)
1701 const struct value_desc
*d
;
1707 d
= find_value("glGetDoublev", pname
, &p
, &v
);
1712 params
[0] = INT_TO_FIXED(d
->offset
);
1717 params
[3] = FLOAT_TO_FIXED(((GLfloat
*) p
)[3]);
1720 params
[2] = FLOAT_TO_FIXED(((GLfloat
*) p
)[2]);
1723 params
[1] = FLOAT_TO_FIXED(((GLfloat
*) p
)[1]);
1726 params
[0] = FLOAT_TO_FIXED(((GLfloat
*) p
)[0]);
1730 params
[0] = FLOAT_TO_FIXED(((GLdouble
*) p
)[0]);
1734 params
[3] = INT_TO_FIXED(((GLint
*) p
)[3]);
1736 params
[2] = INT_TO_FIXED(((GLint
*) p
)[2]);
1739 params
[1] = INT_TO_FIXED(((GLint
*) p
)[1]);
1742 params
[0] = INT_TO_FIXED(((GLint
*) p
)[0]);
1746 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1747 params
[i
] = INT_TO_FIXED(v
.value_int_n
.ints
[i
]);
1751 params
[0] = ((GLint64
*) p
)[0];
1755 params
[0] = BOOLEAN_TO_FIXED(((GLboolean
*) p
)[0]);
1759 m
= *(GLmatrix
**) p
;
1760 for (i
= 0; i
< 16; i
++)
1761 params
[i
] = FLOAT_TO_FIXED(m
->m
[i
]);
1765 m
= *(GLmatrix
**) p
;
1766 for (i
= 0; i
< 16; i
++)
1767 params
[i
] = FLOAT_TO_FIXED(m
->m
[transpose
[i
]]);
1778 shift
= d
->type
- TYPE_BIT_0
;
1779 params
[0] = BOOLEAN_TO_FIXED((*(GLbitfield
*) p
>> shift
) & 1);