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"
41 /* This is a table driven implemetation of the glGet*v() functions.
42 * The basic idea is that most getters just look up an int somewhere
43 * in struct gl_context and then convert it to a bool or float according to
44 * which of glGetIntegerv() glGetBooleanv() etc is being called.
45 * Instead of generating code to do this, we can just record the enum
46 * value and the offset into struct gl_context in an array of structs. Then
47 * in glGet*(), we lookup the struct for the enum in question, and use
48 * the offset to get the int we need.
50 * Sometimes we need to look up a float, a boolean, a bit in a
51 * bitfield, a matrix or other types instead, so we need to track the
52 * type of the value in struct gl_context. And sometimes the value isn't in
53 * struct gl_context but in the drawbuffer, the array object, current texture
54 * unit, or maybe it's a computed value. So we need to also track
55 * where or how to find the value. Finally, we sometimes need to
56 * check that one of a number of extensions are enabled, the GL
57 * version or flush or call _mesa_update_state(). This is done by
58 * attaching optional extra information to the value description
59 * struct, it's sort of like an array of opcodes that describe extra
62 * Putting all this together we end up with struct value_desc below,
63 * and with a couple of macros to help, the table of struct value_desc
64 * is about as concise as the specification in the old python script.
67 #define FLOAT_TO_BOOLEAN(X) ( (X) ? GL_TRUE : GL_FALSE )
68 #define FLOAT_TO_FIXED(F) ( ((F) * 65536.0f > INT_MAX) ? INT_MAX : \
69 ((F) * 65536.0f < INT_MIN) ? INT_MIN : \
70 (GLint) ((F) * 65536.0f) )
72 #define INT_TO_BOOLEAN(I) ( (I) ? GL_TRUE : GL_FALSE )
73 #define INT_TO_FIXED(I) ( ((I) > SHRT_MAX) ? INT_MAX : \
74 ((I) < SHRT_MIN) ? INT_MIN : \
75 (GLint) ((I) * 65536) )
77 #define INT64_TO_BOOLEAN(I) ( (I) ? GL_TRUE : GL_FALSE )
78 #define INT64_TO_INT(I) ( (GLint)((I > INT_MAX) ? INT_MAX : ((I < INT_MIN) ? INT_MIN : (I))) )
80 #define BOOLEAN_TO_INT(B) ( (GLint) (B) )
81 #define BOOLEAN_TO_INT64(B) ( (GLint64) (B) )
82 #define BOOLEAN_TO_FLOAT(B) ( (B) ? 1.0F : 0.0F )
83 #define BOOLEAN_TO_FIXED(B) ( (GLint) ((B) ? 1 : 0) << 16 )
85 #define ENUM_TO_INT64(E) ( (GLint64) (E) )
86 #define ENUM_TO_FIXED(E) (E)
121 enum value_location
{
140 EXTRA_NEW_FRAG_CLAMP
,
141 EXTRA_VALID_DRAW_BUFFER
,
142 EXTRA_VALID_TEXTURE_UNIT
,
143 EXTRA_VALID_CLIP_DISTANCE
,
147 EXTRA_EXT_ATOMICS_GS4
,
150 #define NO_EXTRA NULL
155 GLubyte location
; /**< enum value_location */
156 GLubyte type
; /**< enum value_type */
163 GLfloat value_float_4
[4];
164 GLmatrix
*value_matrix
;
166 GLint value_int_4
[4];
170 /* Sigh, see GL_COMPRESSED_TEXTURE_FORMATS_ARB handling */
174 GLboolean value_bool
;
177 #define BUFFER_FIELD(field, type) \
178 LOC_BUFFER, type, offsetof(struct gl_framebuffer, field)
179 #define CONTEXT_FIELD(field, type) \
180 LOC_CONTEXT, type, offsetof(struct gl_context, field)
181 #define ARRAY_FIELD(field, type) \
182 LOC_ARRAY, type, offsetof(struct gl_array_object, field)
183 #undef CONST /* already defined through windows.h */
184 #define CONST(value) \
185 LOC_CONTEXT, TYPE_CONST, value
187 #define BUFFER_INT(field) BUFFER_FIELD(field, TYPE_INT)
188 #define BUFFER_ENUM(field) BUFFER_FIELD(field, TYPE_ENUM)
189 #define BUFFER_BOOL(field) BUFFER_FIELD(field, TYPE_BOOLEAN)
191 #define CONTEXT_INT(field) CONTEXT_FIELD(field, TYPE_INT)
192 #define CONTEXT_INT2(field) CONTEXT_FIELD(field, TYPE_INT_2)
193 #define CONTEXT_INT64(field) CONTEXT_FIELD(field, TYPE_INT64)
194 #define CONTEXT_ENUM(field) CONTEXT_FIELD(field, TYPE_ENUM)
195 #define CONTEXT_ENUM2(field) CONTEXT_FIELD(field, TYPE_ENUM_2)
196 #define CONTEXT_BOOL(field) CONTEXT_FIELD(field, TYPE_BOOLEAN)
197 #define CONTEXT_BIT0(field) CONTEXT_FIELD(field, TYPE_BIT_0)
198 #define CONTEXT_BIT1(field) CONTEXT_FIELD(field, TYPE_BIT_1)
199 #define CONTEXT_BIT2(field) CONTEXT_FIELD(field, TYPE_BIT_2)
200 #define CONTEXT_BIT3(field) CONTEXT_FIELD(field, TYPE_BIT_3)
201 #define CONTEXT_BIT4(field) CONTEXT_FIELD(field, TYPE_BIT_4)
202 #define CONTEXT_BIT5(field) CONTEXT_FIELD(field, TYPE_BIT_5)
203 #define CONTEXT_BIT6(field) CONTEXT_FIELD(field, TYPE_BIT_6)
204 #define CONTEXT_BIT7(field) CONTEXT_FIELD(field, TYPE_BIT_7)
205 #define CONTEXT_FLOAT(field) CONTEXT_FIELD(field, TYPE_FLOAT)
206 #define CONTEXT_FLOAT2(field) CONTEXT_FIELD(field, TYPE_FLOAT_2)
207 #define CONTEXT_FLOAT3(field) CONTEXT_FIELD(field, TYPE_FLOAT_3)
208 #define CONTEXT_FLOAT4(field) CONTEXT_FIELD(field, TYPE_FLOAT_4)
209 #define CONTEXT_MATRIX(field) CONTEXT_FIELD(field, TYPE_MATRIX)
210 #define CONTEXT_MATRIX_T(field) CONTEXT_FIELD(field, TYPE_MATRIX_T)
212 #define ARRAY_INT(field) ARRAY_FIELD(field, TYPE_INT)
213 #define ARRAY_ENUM(field) ARRAY_FIELD(field, TYPE_ENUM)
214 #define ARRAY_BOOL(field) ARRAY_FIELD(field, TYPE_BOOLEAN)
217 offsetof(struct gl_extensions, f)
219 #define EXTRA_EXT(e) \
220 static const int extra_##e[] = { \
224 #define EXTRA_EXT2(e1, e2) \
225 static const int extra_##e1##_##e2[] = { \
226 EXT(e1), EXT(e2), EXTRA_END \
229 /* The 'extra' mechanism is a way to specify extra checks (such as
230 * extensions or specific gl versions) or actions (flush current, new
231 * buffers) that we need to do before looking up an enum. We need to
232 * declare them all up front so we can refer to them in the value_desc
235 * Each EXTRA_ will be executed. For EXTRA_* enums of extensions and API
236 * versions, listing multiple ones in an array means an error will be thrown
237 * only if none of them are available. If you need to check for "AND"
238 * behavior, you would need to make a custom EXTRA_ enum.
241 static const int extra_new_buffers
[] = {
246 static const int extra_new_frag_clamp
[] = {
247 EXTRA_NEW_FRAG_CLAMP
,
251 static const int extra_valid_draw_buffer
[] = {
252 EXTRA_VALID_DRAW_BUFFER
,
256 static const int extra_valid_texture_unit
[] = {
257 EXTRA_VALID_TEXTURE_UNIT
,
261 static const int extra_valid_clip_distance
[] = {
262 EXTRA_VALID_CLIP_DISTANCE
,
266 static const int extra_flush_current_valid_texture_unit
[] = {
268 EXTRA_VALID_TEXTURE_UNIT
,
272 static const int extra_flush_current
[] = {
277 static const int extra_EXT_texture_integer
[] = {
278 EXT(EXT_texture_integer
),
282 static const int extra_EXT_texture_integer_and_new_buffers
[] = {
283 EXT(EXT_texture_integer
),
288 static const int extra_GLSL_130_es3
[] = {
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
[] = {
312 static const int extra_ARB_ES2_compatibility_api_es2
[] = {
313 EXT(ARB_ES2_compatibility
),
318 static const int extra_ARB_ES3_compatibility_api_es3
[] = {
319 EXT(ARB_ES3_compatibility
),
324 static const int extra_EXT_framebuffer_sRGB_and_new_buffers
[] = {
325 EXT(EXT_framebuffer_sRGB
),
330 static const int extra_MESA_texture_array_es3
[] = {
331 EXT(MESA_texture_array
),
336 static const int extra_ARB_shader_atomic_counters_and_geometry_shader
[] = {
337 EXTRA_EXT_ATOMICS_GS4
,
341 EXTRA_EXT(ARB_texture_cube_map
);
342 EXTRA_EXT(MESA_texture_array
);
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(EXT_provoking_vertex
);
353 EXTRA_EXT(ARB_fragment_shader
);
354 EXTRA_EXT(ARB_fragment_program
);
355 EXTRA_EXT2(ARB_framebuffer_object
, EXT_framebuffer_multisample
);
356 EXTRA_EXT(ARB_seamless_cube_map
);
358 EXTRA_EXT(ARB_vertex_shader
);
359 EXTRA_EXT(EXT_transform_feedback
);
360 EXTRA_EXT(ARB_transform_feedback3
);
361 EXTRA_EXT(EXT_pixel_buffer_object
);
362 EXTRA_EXT(ARB_vertex_program
);
363 EXTRA_EXT2(NV_point_sprite
, ARB_point_sprite
);
364 EXTRA_EXT2(ARB_vertex_program
, ARB_fragment_program
);
365 EXTRA_EXT(ARB_geometry_shader4
);
366 EXTRA_EXT(ARB_color_buffer_float
);
367 EXTRA_EXT(EXT_framebuffer_sRGB
);
368 EXTRA_EXT(OES_EGL_image_external
);
369 EXTRA_EXT(ARB_blend_func_extended
);
370 EXTRA_EXT(ARB_uniform_buffer_object
);
371 EXTRA_EXT(ARB_timer_query
);
372 EXTRA_EXT(ARB_map_buffer_alignment
);
373 EXTRA_EXT(ARB_texture_cube_map_array
);
374 EXTRA_EXT(ARB_texture_buffer_range
);
375 EXTRA_EXT(ARB_texture_multisample
);
376 EXTRA_EXT(ARB_texture_gather
);
377 EXTRA_EXT(ARB_shader_atomic_counters
);
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
};
395 static const int extra_version_40
[] = { EXTRA_VERSION_40
, EXTRA_END
};
397 static const int extra_gl30_es3
[] = {
403 static const int extra_gl32_es3
[] = {
409 static const int extra_gl32_ARB_geometry_shader4
[] = {
411 EXT(ARB_geometry_shader4
),
415 static const int extra_gl40_ARB_sample_shading
[] = {
417 EXT(ARB_sample_shading
),
422 extra_ARB_vertex_program_api_es2
[] = {
423 EXT(ARB_vertex_program
),
428 /* The ReadBuffer get token is valid under either full GL or under
429 * GLES2 if the NV_read_buffer extension is available. */
431 extra_NV_read_buffer_api_gl
[] = {
437 static const int extra_core_ARB_color_buffer_float_and_new_buffers
[] = {
439 EXT(ARB_color_buffer_float
),
444 /* This is the big table describing all the enums we accept in
445 * glGet*v(). The table is partitioned into six parts: enums
446 * understood by all GL APIs (OpenGL, GLES and GLES2), enums shared
447 * between OpenGL and GLES, enums exclusive to GLES, etc for the
448 * remaining combinations. To look up the enums valid in a given API
449 * we will use a hash table specific to that API. These tables are in
450 * turn generated at build time and included through get_hash.h.
453 #include "get_hash.h"
455 /* All we need now is a way to look up the value struct from the enum.
456 * The code generated by gcc for the old generated big switch
457 * statement is a big, balanced, open coded if/else tree, essentially
458 * an unrolled binary search. It would be natural to sort the new
459 * enum table and use bsearch(), but we will use a read-only hash
460 * table instead. bsearch() has a nice guaranteed worst case
461 * performance, but we're also guaranteed to hit that worst case
462 * (log2(n) iterations) for about half the enums. Instead, using an
463 * open addressing hash table, we can find the enum on the first try
464 * for 80% of the enums, 1 collision for 10% and never more than 5
465 * collisions for any enum (typical numbers). And the code is very
466 * simple, even though it feels a little magic. */
470 print_table_stats(int api
)
472 int i
, j
, collisions
[11], count
, hash
, mask
;
473 const struct value_desc
*d
;
474 const char *api_names
[] = {
475 [API_OPENGL_COMPAT
] = "GL",
476 [API_OPENGL_CORE
] = "GL_CORE",
477 [API_OPENGLES
] = "GLES",
478 [API_OPENGLES2
] = "GLES2",
480 const char *api_name
;
482 api_name
= api
< Elements(api_names
) ? api_names
[api
] : "N/A";
484 mask
= Elements(table(api
)) - 1;
485 memset(collisions
, 0, sizeof collisions
);
487 for (i
= 0; i
< Elements(table(api
)); i
++) {
491 d
= &values
[table(api
)[i
]];
492 hash
= (d
->pname
* prime_factor
);
495 if (values
[table(api
)[hash
& mask
]].pname
== d
->pname
)
507 printf("number of enums for %s: %d (total %ld)\n",
508 api_name
, count
, Elements(values
));
509 for (i
= 0; i
< Elements(collisions
) - 1; i
++)
510 if (collisions
[i
] > 0)
511 printf(" %d enums with %d %scollisions\n",
512 collisions
[i
], i
, i
== 10 ? "or more " : "");
517 * Initialize the enum hash for a given API
519 * This is called from one_time_init() to insert the enum values that
520 * are valid for the API in question into the enum hash table.
522 * \param the current context, for determining the API in question
524 void _mesa_init_get_hash(struct gl_context
*ctx
)
527 print_table_stats(ctx
->API
);
534 * Handle irregular enums
536 * Some values don't conform to the "well-known type at context
537 * pointer + offset" pattern, so we have this function to catch all
538 * the corner cases. Typically, it's a computed value or a one-off
539 * pointer to a custom struct or something.
541 * In this case we can't return a pointer to the value, so we'll have
542 * to use the temporary variable 'v' declared back in the calling
543 * glGet*v() function to store the result.
545 * \param ctx the current context
546 * \param d the struct value_desc that describes the enum
547 * \param v pointer to the tmp declared in the calling glGet*v() function
550 find_custom_value(struct gl_context
*ctx
, const struct value_desc
*d
, union value
*v
)
552 struct gl_buffer_object
**buffer_obj
;
553 struct gl_client_array
*array
;
557 case GL_MAJOR_VERSION
:
558 v
->value_int
= ctx
->Version
/ 10;
560 case GL_MINOR_VERSION
:
561 v
->value_int
= ctx
->Version
% 10;
567 case GL_TEXTURE_1D_ARRAY_EXT
:
568 case GL_TEXTURE_2D_ARRAY_EXT
:
569 case GL_TEXTURE_CUBE_MAP_ARB
:
570 case GL_TEXTURE_RECTANGLE_NV
:
571 case GL_TEXTURE_EXTERNAL_OES
:
572 v
->value_bool
= _mesa_IsEnabled(d
->pname
);
575 case GL_LINE_STIPPLE_PATTERN
:
576 /* This is the only GLushort, special case it here by promoting
577 * to an int rather than introducing a new type. */
578 v
->value_int
= ctx
->Line
.StipplePattern
;
581 case GL_CURRENT_RASTER_TEXTURE_COORDS
:
582 unit
= ctx
->Texture
.CurrentUnit
;
583 v
->value_float_4
[0] = ctx
->Current
.RasterTexCoords
[unit
][0];
584 v
->value_float_4
[1] = ctx
->Current
.RasterTexCoords
[unit
][1];
585 v
->value_float_4
[2] = ctx
->Current
.RasterTexCoords
[unit
][2];
586 v
->value_float_4
[3] = ctx
->Current
.RasterTexCoords
[unit
][3];
589 case GL_CURRENT_TEXTURE_COORDS
:
590 unit
= ctx
->Texture
.CurrentUnit
;
591 v
->value_float_4
[0] = ctx
->Current
.Attrib
[VERT_ATTRIB_TEX0
+ unit
][0];
592 v
->value_float_4
[1] = ctx
->Current
.Attrib
[VERT_ATTRIB_TEX0
+ unit
][1];
593 v
->value_float_4
[2] = ctx
->Current
.Attrib
[VERT_ATTRIB_TEX0
+ unit
][2];
594 v
->value_float_4
[3] = ctx
->Current
.Attrib
[VERT_ATTRIB_TEX0
+ unit
][3];
597 case GL_COLOR_WRITEMASK
:
598 v
->value_int_4
[0] = ctx
->Color
.ColorMask
[0][RCOMP
] ? 1 : 0;
599 v
->value_int_4
[1] = ctx
->Color
.ColorMask
[0][GCOMP
] ? 1 : 0;
600 v
->value_int_4
[2] = ctx
->Color
.ColorMask
[0][BCOMP
] ? 1 : 0;
601 v
->value_int_4
[3] = ctx
->Color
.ColorMask
[0][ACOMP
] ? 1 : 0;
605 v
->value_bool
= ctx
->Current
.Attrib
[VERT_ATTRIB_EDGEFLAG
][0] == 1.0;
609 v
->value_enum
= ctx
->ReadBuffer
->ColorReadBuffer
;
612 case GL_MAP2_GRID_DOMAIN
:
613 v
->value_float_4
[0] = ctx
->Eval
.MapGrid2u1
;
614 v
->value_float_4
[1] = ctx
->Eval
.MapGrid2u2
;
615 v
->value_float_4
[2] = ctx
->Eval
.MapGrid2v1
;
616 v
->value_float_4
[3] = ctx
->Eval
.MapGrid2v2
;
619 case GL_TEXTURE_STACK_DEPTH
:
620 unit
= ctx
->Texture
.CurrentUnit
;
621 v
->value_int
= ctx
->TextureMatrixStack
[unit
].Depth
+ 1;
623 case GL_TEXTURE_MATRIX
:
624 unit
= ctx
->Texture
.CurrentUnit
;
625 v
->value_matrix
= ctx
->TextureMatrixStack
[unit
].Top
;
628 case GL_TEXTURE_COORD_ARRAY
:
629 case GL_TEXTURE_COORD_ARRAY_SIZE
:
630 case GL_TEXTURE_COORD_ARRAY_TYPE
:
631 case GL_TEXTURE_COORD_ARRAY_STRIDE
:
632 array
= &ctx
->Array
.ArrayObj
->_VertexAttrib
[VERT_ATTRIB_TEX(ctx
->Array
.ActiveTexture
)];
633 v
->value_int
= *(GLuint
*) ((char *) array
+ d
->offset
);
636 case GL_ACTIVE_TEXTURE_ARB
:
637 v
->value_int
= GL_TEXTURE0_ARB
+ ctx
->Texture
.CurrentUnit
;
639 case GL_CLIENT_ACTIVE_TEXTURE_ARB
:
640 v
->value_int
= GL_TEXTURE0_ARB
+ ctx
->Array
.ActiveTexture
;
643 case GL_MODELVIEW_STACK_DEPTH
:
644 case GL_PROJECTION_STACK_DEPTH
:
645 v
->value_int
= *(GLint
*) ((char *) ctx
+ d
->offset
) + 1;
648 case GL_MAX_TEXTURE_SIZE
:
649 case GL_MAX_3D_TEXTURE_SIZE
:
650 case GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB
:
651 p
= (GLuint
*) ((char *) ctx
+ d
->offset
);
652 v
->value_int
= 1 << (*p
- 1);
656 v
->value_int_4
[0] = ctx
->Scissor
.X
;
657 v
->value_int_4
[1] = ctx
->Scissor
.Y
;
658 v
->value_int_4
[2] = ctx
->Scissor
.Width
;
659 v
->value_int_4
[3] = ctx
->Scissor
.Height
;
664 ctx
->ListState
.CurrentList
? ctx
->ListState
.CurrentList
->Name
: 0;
667 if (!ctx
->CompileFlag
)
669 else if (ctx
->ExecuteFlag
)
670 v
->value_enum
= GL_COMPILE_AND_EXECUTE
;
672 v
->value_enum
= GL_COMPILE
;
676 v
->value_int_4
[0] = ctx
->Viewport
.X
;
677 v
->value_int_4
[1] = ctx
->Viewport
.Y
;
678 v
->value_int_4
[2] = ctx
->Viewport
.Width
;
679 v
->value_int_4
[3] = ctx
->Viewport
.Height
;
682 case GL_ACTIVE_STENCIL_FACE_EXT
:
683 v
->value_enum
= ctx
->Stencil
.ActiveFace
? GL_BACK
: GL_FRONT
;
686 case GL_STENCIL_FAIL
:
687 v
->value_enum
= ctx
->Stencil
.FailFunc
[ctx
->Stencil
.ActiveFace
];
689 case GL_STENCIL_FUNC
:
690 v
->value_enum
= ctx
->Stencil
.Function
[ctx
->Stencil
.ActiveFace
];
692 case GL_STENCIL_PASS_DEPTH_FAIL
:
693 v
->value_enum
= ctx
->Stencil
.ZFailFunc
[ctx
->Stencil
.ActiveFace
];
695 case GL_STENCIL_PASS_DEPTH_PASS
:
696 v
->value_enum
= ctx
->Stencil
.ZPassFunc
[ctx
->Stencil
.ActiveFace
];
699 v
->value_int
= _mesa_get_stencil_ref(ctx
, ctx
->Stencil
.ActiveFace
);
701 case GL_STENCIL_BACK_REF
:
702 v
->value_int
= _mesa_get_stencil_ref(ctx
, 1);
704 case GL_STENCIL_VALUE_MASK
:
705 v
->value_int
= ctx
->Stencil
.ValueMask
[ctx
->Stencil
.ActiveFace
];
707 case GL_STENCIL_WRITEMASK
:
708 v
->value_int
= ctx
->Stencil
.WriteMask
[ctx
->Stencil
.ActiveFace
];
711 case GL_NUM_EXTENSIONS
:
712 v
->value_int
= _mesa_get_extension_count(ctx
);
715 case GL_IMPLEMENTATION_COLOR_READ_TYPE_OES
:
716 v
->value_int
= _mesa_get_color_read_type(ctx
);
718 case GL_IMPLEMENTATION_COLOR_READ_FORMAT_OES
:
719 v
->value_int
= _mesa_get_color_read_format(ctx
);
722 case GL_CURRENT_MATRIX_STACK_DEPTH_ARB
:
723 v
->value_int
= ctx
->CurrentStack
->Depth
+ 1;
725 case GL_CURRENT_MATRIX_ARB
:
726 case GL_TRANSPOSE_CURRENT_MATRIX_ARB
:
727 v
->value_matrix
= ctx
->CurrentStack
->Top
;
730 case GL_NUM_COMPRESSED_TEXTURE_FORMATS_ARB
:
731 v
->value_int
= _mesa_get_compressed_formats(ctx
, NULL
);
733 case GL_COMPRESSED_TEXTURE_FORMATS_ARB
:
735 _mesa_get_compressed_formats(ctx
, v
->value_int_n
.ints
);
736 ASSERT(v
->value_int_n
.n
<= (int) ARRAY_SIZE(v
->value_int_n
.ints
));
739 case GL_MAX_VARYING_FLOATS_ARB
:
740 v
->value_int
= ctx
->Const
.MaxVarying
* 4;
743 /* Various object names */
745 case GL_TEXTURE_BINDING_1D
:
746 case GL_TEXTURE_BINDING_2D
:
747 case GL_TEXTURE_BINDING_3D
:
748 case GL_TEXTURE_BINDING_1D_ARRAY_EXT
:
749 case GL_TEXTURE_BINDING_2D_ARRAY_EXT
:
750 case GL_TEXTURE_BINDING_CUBE_MAP_ARB
:
751 case GL_TEXTURE_BINDING_RECTANGLE_NV
:
752 case GL_TEXTURE_BINDING_EXTERNAL_OES
:
753 case GL_TEXTURE_BINDING_CUBE_MAP_ARRAY
:
754 case GL_TEXTURE_BINDING_2D_MULTISAMPLE
:
755 case GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY
:
756 unit
= ctx
->Texture
.CurrentUnit
;
758 ctx
->Texture
.Unit
[unit
].CurrentTex
[d
->offset
]->Name
;
761 /* GL_ARB_vertex_buffer_object */
762 case GL_VERTEX_ARRAY_BUFFER_BINDING_ARB
:
763 case GL_NORMAL_ARRAY_BUFFER_BINDING_ARB
:
764 case GL_COLOR_ARRAY_BUFFER_BINDING_ARB
:
765 case GL_INDEX_ARRAY_BUFFER_BINDING_ARB
:
766 case GL_EDGE_FLAG_ARRAY_BUFFER_BINDING_ARB
:
767 case GL_SECONDARY_COLOR_ARRAY_BUFFER_BINDING_ARB
:
768 case GL_FOG_COORDINATE_ARRAY_BUFFER_BINDING_ARB
:
769 buffer_obj
= (struct gl_buffer_object
**)
770 ((char *) ctx
->Array
.ArrayObj
+ d
->offset
);
771 v
->value_int
= (*buffer_obj
)->Name
;
773 case GL_ARRAY_BUFFER_BINDING_ARB
:
774 v
->value_int
= ctx
->Array
.ArrayBufferObj
->Name
;
776 case GL_TEXTURE_COORD_ARRAY_BUFFER_BINDING_ARB
:
778 ctx
->Array
.ArrayObj
->_VertexAttrib
[VERT_ATTRIB_TEX(ctx
->Array
.ActiveTexture
)].BufferObj
->Name
;
780 case GL_ELEMENT_ARRAY_BUFFER_BINDING_ARB
:
781 v
->value_int
= ctx
->Array
.ArrayObj
->ElementArrayBufferObj
->Name
;
784 /* ARB_copy_buffer */
785 case GL_COPY_READ_BUFFER
:
786 v
->value_int
= ctx
->CopyReadBuffer
->Name
;
788 case GL_COPY_WRITE_BUFFER
:
789 v
->value_int
= ctx
->CopyWriteBuffer
->Name
;
792 case GL_PIXEL_PACK_BUFFER_BINDING_EXT
:
793 v
->value_int
= ctx
->Pack
.BufferObj
->Name
;
795 case GL_PIXEL_UNPACK_BUFFER_BINDING_EXT
:
796 v
->value_int
= ctx
->Unpack
.BufferObj
->Name
;
798 case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING
:
799 v
->value_int
= ctx
->TransformFeedback
.CurrentBuffer
->Name
;
801 case GL_TRANSFORM_FEEDBACK_BUFFER_PAUSED
:
802 v
->value_int
= ctx
->TransformFeedback
.CurrentObject
->Paused
;
804 case GL_TRANSFORM_FEEDBACK_BUFFER_ACTIVE
:
805 v
->value_int
= ctx
->TransformFeedback
.CurrentObject
->Active
;
807 case GL_TRANSFORM_FEEDBACK_BINDING
:
808 v
->value_int
= ctx
->TransformFeedback
.CurrentObject
->Name
;
810 case GL_CURRENT_PROGRAM
:
812 ctx
->Shader
.ActiveProgram
? ctx
->Shader
.ActiveProgram
->Name
: 0;
814 case GL_READ_FRAMEBUFFER_BINDING_EXT
:
815 v
->value_int
= ctx
->ReadBuffer
->Name
;
817 case GL_RENDERBUFFER_BINDING_EXT
:
819 ctx
->CurrentRenderbuffer
? ctx
->CurrentRenderbuffer
->Name
: 0;
821 case GL_POINT_SIZE_ARRAY_BUFFER_BINDING_OES
:
822 v
->value_int
= ctx
->Array
.ArrayObj
->_VertexAttrib
[VERT_ATTRIB_POINT_SIZE
].BufferObj
->Name
;
826 if (_mesa_get_clamp_fragment_color(ctx
))
827 COPY_4FV(v
->value_float_4
, ctx
->Fog
.Color
);
829 COPY_4FV(v
->value_float_4
, ctx
->Fog
.ColorUnclamped
);
831 case GL_COLOR_CLEAR_VALUE
:
832 if (_mesa_get_clamp_fragment_color(ctx
)) {
833 v
->value_float_4
[0] = CLAMP(ctx
->Color
.ClearColor
.f
[0], 0.0F
, 1.0F
);
834 v
->value_float_4
[1] = CLAMP(ctx
->Color
.ClearColor
.f
[1], 0.0F
, 1.0F
);
835 v
->value_float_4
[2] = CLAMP(ctx
->Color
.ClearColor
.f
[2], 0.0F
, 1.0F
);
836 v
->value_float_4
[3] = CLAMP(ctx
->Color
.ClearColor
.f
[3], 0.0F
, 1.0F
);
838 COPY_4FV(v
->value_float_4
, ctx
->Color
.ClearColor
.f
);
840 case GL_BLEND_COLOR_EXT
:
841 if (_mesa_get_clamp_fragment_color(ctx
))
842 COPY_4FV(v
->value_float_4
, ctx
->Color
.BlendColor
);
844 COPY_4FV(v
->value_float_4
, ctx
->Color
.BlendColorUnclamped
);
846 case GL_ALPHA_TEST_REF
:
847 if (_mesa_get_clamp_fragment_color(ctx
))
848 v
->value_float
= ctx
->Color
.AlphaRef
;
850 v
->value_float
= ctx
->Color
.AlphaRefUnclamped
;
852 case GL_MAX_VERTEX_UNIFORM_VECTORS
:
853 v
->value_int
= ctx
->Const
.VertexProgram
.MaxUniformComponents
/ 4;
856 case GL_MAX_FRAGMENT_UNIFORM_VECTORS
:
857 v
->value_int
= ctx
->Const
.FragmentProgram
.MaxUniformComponents
/ 4;
860 /* GL_ARB_texture_buffer_object */
861 case GL_TEXTURE_BUFFER_ARB
:
862 v
->value_int
= ctx
->Texture
.BufferObject
->Name
;
864 case GL_TEXTURE_BINDING_BUFFER_ARB
:
865 unit
= ctx
->Texture
.CurrentUnit
;
867 ctx
->Texture
.Unit
[unit
].CurrentTex
[TEXTURE_BUFFER_INDEX
]->Name
;
869 case GL_TEXTURE_BUFFER_DATA_STORE_BINDING_ARB
:
871 struct gl_buffer_object
*buf
=
872 ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
]
873 .CurrentTex
[TEXTURE_BUFFER_INDEX
]->BufferObject
;
874 v
->value_int
= buf
? buf
->Name
: 0;
877 case GL_TEXTURE_BUFFER_FORMAT_ARB
:
878 v
->value_int
= ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
]
879 .CurrentTex
[TEXTURE_BUFFER_INDEX
]->BufferObjectFormat
;
882 /* GL_ARB_sampler_objects */
883 case GL_SAMPLER_BINDING
:
885 struct gl_sampler_object
*samp
=
886 ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
].Sampler
;
889 * The sampler object may have been deleted on another context,
890 * so we try to lookup the sampler object before returning its Name.
892 if (samp
&& _mesa_lookup_samplerobj(ctx
, samp
->Name
)) {
893 v
->value_int
= samp
->Name
;
899 /* GL_ARB_uniform_buffer_object */
900 case GL_UNIFORM_BUFFER_BINDING
:
901 v
->value_int
= ctx
->UniformBuffer
->Name
;
903 /* GL_ARB_timer_query */
905 if (ctx
->Driver
.GetTimestamp
) {
906 v
->value_int64
= ctx
->Driver
.GetTimestamp(ctx
);
909 _mesa_problem(ctx
, "driver doesn't implement GetTimestamp");
912 /* GL_ARB_shader_atomic_counters */
913 case GL_ATOMIC_COUNTER_BUFFER_BINDING
:
914 v
->value_int
= ctx
->AtomicBuffer
->Name
;
920 * Check extra constraints on a struct value_desc descriptor
922 * If a struct value_desc has a non-NULL extra pointer, it means that
923 * there are a number of extra constraints to check or actions to
924 * perform. The extras is just an integer array where each integer
925 * encode different constraints or actions.
927 * \param ctx current context
928 * \param func name of calling glGet*v() function for error reporting
929 * \param d the struct value_desc that has the extra constraints
931 * \return GL_FALSE if all of the constraints were not satisfied,
935 check_extra(struct gl_context
*ctx
, const char *func
, const struct value_desc
*d
)
937 const GLuint version
= ctx
->Version
;
938 GLboolean api_check
= GL_FALSE
;
939 GLboolean api_found
= GL_FALSE
;
942 for (e
= d
->extra
; *e
!= EXTRA_END
; e
++) {
944 case EXTRA_VERSION_30
:
949 case EXTRA_VERSION_31
:
954 case EXTRA_VERSION_32
:
959 case EXTRA_NEW_FRAG_CLAMP
:
960 if (ctx
->NewState
& (_NEW_BUFFERS
| _NEW_FRAG_CLAMP
))
961 _mesa_update_state(ctx
);
965 if (ctx
->API
== API_OPENGLES2
)
970 if (_mesa_is_gles3(ctx
))
975 if (_mesa_is_desktop_gl(ctx
))
978 case EXTRA_API_GL_CORE
:
980 if (ctx
->API
== API_OPENGL_CORE
)
983 case EXTRA_NEW_BUFFERS
:
984 if (ctx
->NewState
& _NEW_BUFFERS
)
985 _mesa_update_state(ctx
);
987 case EXTRA_FLUSH_CURRENT
:
988 FLUSH_CURRENT(ctx
, 0);
990 case EXTRA_VALID_DRAW_BUFFER
:
991 if (d
->pname
- GL_DRAW_BUFFER0_ARB
>= ctx
->Const
.MaxDrawBuffers
) {
992 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(draw buffer %u)",
993 func
, d
->pname
- GL_DRAW_BUFFER0_ARB
);
997 case EXTRA_VALID_TEXTURE_UNIT
:
998 if (ctx
->Texture
.CurrentUnit
>= ctx
->Const
.MaxTextureCoordUnits
) {
999 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(texture %u)",
1000 func
, ctx
->Texture
.CurrentUnit
);
1004 case EXTRA_VALID_CLIP_DISTANCE
:
1005 if (d
->pname
- GL_CLIP_DISTANCE0
>= ctx
->Const
.MaxClipPlanes
) {
1006 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(clip distance %u)",
1007 func
, d
->pname
- GL_CLIP_DISTANCE0
);
1011 case EXTRA_GLSL_130
:
1012 api_check
= GL_TRUE
;
1013 if (ctx
->Const
.GLSLVersion
>= 130)
1014 api_found
= GL_TRUE
;
1016 case EXTRA_EXT_UBO_GS4
:
1017 api_check
= GL_TRUE
;
1018 api_found
= (ctx
->Extensions
.ARB_uniform_buffer_object
&&
1019 _mesa_has_geometry_shaders(ctx
));
1021 case EXTRA_EXT_ATOMICS_GS4
:
1022 api_check
= GL_TRUE
;
1023 api_found
= (ctx
->Extensions
.ARB_shader_atomic_counters
&&
1024 _mesa_has_geometry_shaders(ctx
));
1028 default: /* *e is a offset into the extension struct */
1029 api_check
= GL_TRUE
;
1030 if (*(GLboolean
*) ((char *) &ctx
->Extensions
+ *e
))
1031 api_found
= GL_TRUE
;
1036 if (api_check
&& !api_found
) {
1037 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=%s)", func
,
1038 _mesa_lookup_enum_by_nr(d
->pname
));
1045 static const struct value_desc error_value
=
1046 { 0, 0, TYPE_INVALID
, NO_OFFSET
, NO_EXTRA
};
1049 * Find the struct value_desc corresponding to the enum 'pname'.
1051 * We hash the enum value to get an index into the 'table' array,
1052 * which holds the index in the 'values' array of struct value_desc.
1053 * Once we've found the entry, we do the extra checks, if any, then
1054 * look up the value and return a pointer to it.
1056 * If the value has to be computed (for example, it's the result of a
1057 * function call or we need to add 1 to it), we use the tmp 'v' to
1060 * \param func name of glGet*v() func for error reporting
1061 * \param pname the enum value we're looking up
1062 * \param p is were we return the pointer to the value
1063 * \param v a tmp union value variable in the calling glGet*v() function
1065 * \return the struct value_desc corresponding to the enum or a struct
1066 * value_desc of TYPE_INVALID if not found. This lets the calling
1067 * glGet*v() function jump right into a switch statement and
1068 * handle errors there instead of having to check for NULL.
1070 static const struct value_desc
*
1071 find_value(const char *func
, GLenum pname
, void **p
, union value
*v
)
1073 GET_CURRENT_CONTEXT(ctx
);
1074 struct gl_texture_unit
*unit
;
1076 const struct value_desc
*d
;
1080 /* We index into the table_set[] list of per-API hash tables using the API's
1081 * value in the gl_api enum. Since GLES 3 doesn't have an API_OPENGL* enum
1082 * value since it's compatible with GLES2 its entry in table_set[] is at the
1085 STATIC_ASSERT(Elements(table_set
) == API_OPENGL_LAST
+ 2);
1086 if (_mesa_is_gles3(ctx
)) {
1087 api
= API_OPENGL_LAST
+ 1;
1089 mask
= Elements(table(api
)) - 1;
1090 hash
= (pname
* prime_factor
);
1092 int idx
= table(api
)[hash
& mask
];
1094 /* If the enum isn't valid, the hash walk ends with index 0,
1095 * pointing to the first entry of values[] which doesn't hold
1096 * any valid enum. */
1097 if (unlikely(idx
== 0)) {
1098 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=%s)", func
,
1099 _mesa_lookup_enum_by_nr(pname
));
1100 return &error_value
;
1104 if (likely(d
->pname
== pname
))
1110 if (unlikely(d
->extra
&& !check_extra(ctx
, func
, d
)))
1111 return &error_value
;
1113 switch (d
->location
) {
1115 *p
= ((char *) ctx
->DrawBuffer
+ d
->offset
);
1118 *p
= ((char *) ctx
+ d
->offset
);
1121 *p
= ((char *) ctx
->Array
.ArrayObj
+ d
->offset
);
1124 unit
= &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1125 *p
= ((char *) unit
+ d
->offset
);
1128 find_custom_value(ctx
, d
, v
);
1136 /* silence warning */
1137 return &error_value
;
1140 static const int transpose
[] = {
1148 _mesa_GetBooleanv(GLenum pname
, GLboolean
*params
)
1150 const struct value_desc
*d
;
1156 d
= find_value("glGetBooleanv", pname
, &p
, &v
);
1161 params
[0] = INT_TO_BOOLEAN(d
->offset
);
1166 params
[3] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[3]);
1169 params
[2] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[2]);
1172 params
[1] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[1]);
1175 params
[0] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[0]);
1179 params
[0] = FLOAT_TO_BOOLEAN(((GLdouble
*) p
)[0]);
1183 params
[3] = INT_TO_BOOLEAN(((GLint
*) p
)[3]);
1185 params
[2] = INT_TO_BOOLEAN(((GLint
*) p
)[2]);
1188 params
[1] = INT_TO_BOOLEAN(((GLint
*) p
)[1]);
1191 params
[0] = INT_TO_BOOLEAN(((GLint
*) p
)[0]);
1195 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1196 params
[i
] = INT_TO_BOOLEAN(v
.value_int_n
.ints
[i
]);
1200 params
[0] = INT64_TO_BOOLEAN(((GLint64
*) p
)[0]);
1204 params
[0] = ((GLboolean
*) p
)[0];
1208 m
= *(GLmatrix
**) p
;
1209 for (i
= 0; i
< 16; i
++)
1210 params
[i
] = FLOAT_TO_BOOLEAN(m
->m
[i
]);
1214 m
= *(GLmatrix
**) p
;
1215 for (i
= 0; i
< 16; i
++)
1216 params
[i
] = FLOAT_TO_BOOLEAN(m
->m
[transpose
[i
]]);
1227 shift
= d
->type
- TYPE_BIT_0
;
1228 params
[0] = (*(GLbitfield
*) p
>> shift
) & 1;
1234 _mesa_GetFloatv(GLenum pname
, GLfloat
*params
)
1236 const struct value_desc
*d
;
1242 d
= find_value("glGetFloatv", pname
, &p
, &v
);
1247 params
[0] = (GLfloat
) d
->offset
;
1252 params
[3] = ((GLfloat
*) p
)[3];
1255 params
[2] = ((GLfloat
*) p
)[2];
1258 params
[1] = ((GLfloat
*) p
)[1];
1261 params
[0] = ((GLfloat
*) p
)[0];
1265 params
[0] = (GLfloat
) (((GLdouble
*) p
)[0]);
1269 params
[3] = (GLfloat
) (((GLint
*) p
)[3]);
1271 params
[2] = (GLfloat
) (((GLint
*) p
)[2]);
1274 params
[1] = (GLfloat
) (((GLint
*) p
)[1]);
1277 params
[0] = (GLfloat
) (((GLint
*) p
)[0]);
1281 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1282 params
[i
] = INT_TO_FLOAT(v
.value_int_n
.ints
[i
]);
1286 params
[0] = (GLfloat
) (((GLint64
*) p
)[0]);
1290 params
[0] = BOOLEAN_TO_FLOAT(*(GLboolean
*) p
);
1294 m
= *(GLmatrix
**) p
;
1295 for (i
= 0; i
< 16; i
++)
1296 params
[i
] = m
->m
[i
];
1300 m
= *(GLmatrix
**) p
;
1301 for (i
= 0; i
< 16; i
++)
1302 params
[i
] = m
->m
[transpose
[i
]];
1313 shift
= d
->type
- TYPE_BIT_0
;
1314 params
[0] = BOOLEAN_TO_FLOAT((*(GLbitfield
*) p
>> shift
) & 1);
1320 _mesa_GetIntegerv(GLenum pname
, GLint
*params
)
1322 const struct value_desc
*d
;
1328 d
= find_value("glGetIntegerv", pname
, &p
, &v
);
1333 params
[0] = d
->offset
;
1337 params
[3] = IROUND(((GLfloat
*) p
)[3]);
1339 params
[2] = IROUND(((GLfloat
*) p
)[2]);
1341 params
[1] = IROUND(((GLfloat
*) p
)[1]);
1343 params
[0] = IROUND(((GLfloat
*) p
)[0]);
1347 params
[3] = FLOAT_TO_INT(((GLfloat
*) p
)[3]);
1349 params
[2] = FLOAT_TO_INT(((GLfloat
*) p
)[2]);
1351 params
[1] = FLOAT_TO_INT(((GLfloat
*) p
)[1]);
1353 params
[0] = FLOAT_TO_INT(((GLfloat
*) p
)[0]);
1357 params
[0] = FLOAT_TO_INT(((GLdouble
*) p
)[0]);
1361 params
[3] = ((GLint
*) p
)[3];
1363 params
[2] = ((GLint
*) p
)[2];
1366 params
[1] = ((GLint
*) p
)[1];
1369 params
[0] = ((GLint
*) p
)[0];
1373 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1374 params
[i
] = v
.value_int_n
.ints
[i
];
1378 params
[0] = INT64_TO_INT(((GLint64
*) p
)[0]);
1382 params
[0] = BOOLEAN_TO_INT(*(GLboolean
*) p
);
1386 m
= *(GLmatrix
**) p
;
1387 for (i
= 0; i
< 16; i
++)
1388 params
[i
] = FLOAT_TO_INT(m
->m
[i
]);
1392 m
= *(GLmatrix
**) p
;
1393 for (i
= 0; i
< 16; i
++)
1394 params
[i
] = FLOAT_TO_INT(m
->m
[transpose
[i
]]);
1405 shift
= d
->type
- TYPE_BIT_0
;
1406 params
[0] = (*(GLbitfield
*) p
>> shift
) & 1;
1412 _mesa_GetInteger64v(GLenum pname
, GLint64
*params
)
1414 const struct value_desc
*d
;
1420 d
= find_value("glGetInteger64v", pname
, &p
, &v
);
1425 params
[0] = d
->offset
;
1429 params
[3] = IROUND64(((GLfloat
*) p
)[3]);
1431 params
[2] = IROUND64(((GLfloat
*) p
)[2]);
1433 params
[1] = IROUND64(((GLfloat
*) p
)[1]);
1435 params
[0] = IROUND64(((GLfloat
*) p
)[0]);
1439 params
[3] = FLOAT_TO_INT64(((GLfloat
*) p
)[3]);
1441 params
[2] = FLOAT_TO_INT64(((GLfloat
*) p
)[2]);
1443 params
[1] = FLOAT_TO_INT64(((GLfloat
*) p
)[1]);
1445 params
[0] = FLOAT_TO_INT64(((GLfloat
*) p
)[0]);
1449 params
[0] = FLOAT_TO_INT64(((GLdouble
*) p
)[0]);
1453 params
[3] = ((GLint
*) p
)[3];
1455 params
[2] = ((GLint
*) p
)[2];
1458 params
[1] = ((GLint
*) p
)[1];
1461 params
[0] = ((GLint
*) p
)[0];
1465 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1466 params
[i
] = INT_TO_BOOLEAN(v
.value_int_n
.ints
[i
]);
1470 params
[0] = ((GLint64
*) p
)[0];
1474 params
[0] = ((GLboolean
*) p
)[0];
1478 m
= *(GLmatrix
**) p
;
1479 for (i
= 0; i
< 16; i
++)
1480 params
[i
] = FLOAT_TO_INT64(m
->m
[i
]);
1484 m
= *(GLmatrix
**) p
;
1485 for (i
= 0; i
< 16; i
++)
1486 params
[i
] = FLOAT_TO_INT64(m
->m
[transpose
[i
]]);
1497 shift
= d
->type
- TYPE_BIT_0
;
1498 params
[0] = (*(GLbitfield
*) p
>> shift
) & 1;
1504 _mesa_GetDoublev(GLenum pname
, GLdouble
*params
)
1506 const struct value_desc
*d
;
1512 d
= find_value("glGetDoublev", pname
, &p
, &v
);
1517 params
[0] = d
->offset
;
1522 params
[3] = ((GLfloat
*) p
)[3];
1525 params
[2] = ((GLfloat
*) p
)[2];
1528 params
[1] = ((GLfloat
*) p
)[1];
1531 params
[0] = ((GLfloat
*) p
)[0];
1535 params
[0] = ((GLdouble
*) p
)[0];
1539 params
[3] = ((GLint
*) p
)[3];
1541 params
[2] = ((GLint
*) p
)[2];
1544 params
[1] = ((GLint
*) p
)[1];
1547 params
[0] = ((GLint
*) p
)[0];
1551 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1552 params
[i
] = v
.value_int_n
.ints
[i
];
1556 params
[0] = (GLdouble
) (((GLint64
*) p
)[0]);
1560 params
[0] = *(GLboolean
*) p
;
1564 m
= *(GLmatrix
**) p
;
1565 for (i
= 0; i
< 16; i
++)
1566 params
[i
] = m
->m
[i
];
1570 m
= *(GLmatrix
**) p
;
1571 for (i
= 0; i
< 16; i
++)
1572 params
[i
] = m
->m
[transpose
[i
]];
1583 shift
= d
->type
- TYPE_BIT_0
;
1584 params
[0] = (*(GLbitfield
*) p
>> shift
) & 1;
1589 static enum value_type
1590 find_value_indexed(const char *func
, GLenum pname
, GLuint index
, union value
*v
)
1592 GET_CURRENT_CONTEXT(ctx
);
1597 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1599 if (!ctx
->Extensions
.EXT_draw_buffers2
)
1601 v
->value_int
= (ctx
->Color
.BlendEnabled
>> index
) & 1;
1606 case GL_BLEND_SRC_RGB
:
1607 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1609 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1611 v
->value_int
= ctx
->Color
.Blend
[index
].SrcRGB
;
1613 case GL_BLEND_SRC_ALPHA
:
1614 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1616 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1618 v
->value_int
= ctx
->Color
.Blend
[index
].SrcA
;
1622 case GL_BLEND_DST_RGB
:
1623 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1625 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1627 v
->value_int
= ctx
->Color
.Blend
[index
].DstRGB
;
1629 case GL_BLEND_DST_ALPHA
:
1630 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1632 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1634 v
->value_int
= ctx
->Color
.Blend
[index
].DstA
;
1636 case GL_BLEND_EQUATION_RGB
:
1637 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1639 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1641 v
->value_int
= ctx
->Color
.Blend
[index
].EquationRGB
;
1643 case GL_BLEND_EQUATION_ALPHA
:
1644 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1646 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1648 v
->value_int
= ctx
->Color
.Blend
[index
].EquationA
;
1651 case GL_COLOR_WRITEMASK
:
1652 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1654 if (!ctx
->Extensions
.EXT_draw_buffers2
)
1656 v
->value_int_4
[0] = ctx
->Color
.ColorMask
[index
][RCOMP
] ? 1 : 0;
1657 v
->value_int_4
[1] = ctx
->Color
.ColorMask
[index
][GCOMP
] ? 1 : 0;
1658 v
->value_int_4
[2] = ctx
->Color
.ColorMask
[index
][BCOMP
] ? 1 : 0;
1659 v
->value_int_4
[3] = ctx
->Color
.ColorMask
[index
][ACOMP
] ? 1 : 0;
1662 case GL_TRANSFORM_FEEDBACK_BUFFER_START
:
1663 if (index
>= ctx
->Const
.MaxTransformFeedbackBuffers
)
1665 if (!ctx
->Extensions
.EXT_transform_feedback
)
1667 v
->value_int64
= ctx
->TransformFeedback
.CurrentObject
->Offset
[index
];
1670 case GL_TRANSFORM_FEEDBACK_BUFFER_SIZE
:
1671 if (index
>= ctx
->Const
.MaxTransformFeedbackBuffers
)
1673 if (!ctx
->Extensions
.EXT_transform_feedback
)
1676 = ctx
->TransformFeedback
.CurrentObject
->RequestedSize
[index
];
1679 case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING
:
1680 if (index
>= ctx
->Const
.MaxTransformFeedbackBuffers
)
1682 if (!ctx
->Extensions
.EXT_transform_feedback
)
1684 v
->value_int
= ctx
->TransformFeedback
.CurrentObject
->BufferNames
[index
];
1687 case GL_UNIFORM_BUFFER_BINDING
:
1688 if (index
>= ctx
->Const
.MaxUniformBufferBindings
)
1690 if (!ctx
->Extensions
.ARB_uniform_buffer_object
)
1692 v
->value_int
= ctx
->UniformBufferBindings
[index
].BufferObject
->Name
;
1695 case GL_UNIFORM_BUFFER_START
:
1696 if (index
>= ctx
->Const
.MaxUniformBufferBindings
)
1698 if (!ctx
->Extensions
.ARB_uniform_buffer_object
)
1700 v
->value_int
= ctx
->UniformBufferBindings
[index
].Offset
;
1703 case GL_UNIFORM_BUFFER_SIZE
:
1704 if (index
>= ctx
->Const
.MaxUniformBufferBindings
)
1706 if (!ctx
->Extensions
.ARB_uniform_buffer_object
)
1708 v
->value_int
= ctx
->UniformBufferBindings
[index
].Size
;
1711 /* ARB_texture_multisample / GL3.2 */
1712 case GL_SAMPLE_MASK_VALUE
:
1715 if (!ctx
->Extensions
.ARB_texture_multisample
)
1717 v
->value_int
= ctx
->Multisample
.SampleMaskValue
;
1720 case GL_ATOMIC_COUNTER_BUFFER_BINDING
:
1721 if (!ctx
->Extensions
.ARB_shader_atomic_counters
)
1723 if (index
>= ctx
->Const
.MaxAtomicBufferBindings
)
1725 v
->value_int
= ctx
->AtomicBufferBindings
[index
].BufferObject
->Name
;
1728 case GL_ATOMIC_COUNTER_BUFFER_START
:
1729 if (!ctx
->Extensions
.ARB_shader_atomic_counters
)
1731 if (index
>= ctx
->Const
.MaxAtomicBufferBindings
)
1733 v
->value_int64
= ctx
->AtomicBufferBindings
[index
].Offset
;
1736 case GL_ATOMIC_COUNTER_BUFFER_SIZE
:
1737 if (!ctx
->Extensions
.ARB_shader_atomic_counters
)
1739 if (index
>= ctx
->Const
.MaxAtomicBufferBindings
)
1741 v
->value_int64
= ctx
->AtomicBufferBindings
[index
].Size
;
1746 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=%s)", func
,
1747 _mesa_lookup_enum_by_nr(pname
));
1748 return TYPE_INVALID
;
1750 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(pname=%s)", func
,
1751 _mesa_lookup_enum_by_nr(pname
));
1752 return TYPE_INVALID
;
1756 _mesa_GetBooleani_v( GLenum pname
, GLuint index
, GLboolean
*params
)
1759 enum value_type type
=
1760 find_value_indexed("glGetBooleani_v", pname
, index
, &v
);
1764 params
[0] = INT_TO_BOOLEAN(v
.value_int
);
1767 params
[0] = INT_TO_BOOLEAN(v
.value_int_4
[0]);
1768 params
[1] = INT_TO_BOOLEAN(v
.value_int_4
[1]);
1769 params
[2] = INT_TO_BOOLEAN(v
.value_int_4
[2]);
1770 params
[3] = INT_TO_BOOLEAN(v
.value_int_4
[3]);
1773 params
[0] = INT64_TO_BOOLEAN(v
.value_int
);
1776 ; /* nothing - GL error was recorded */
1781 _mesa_GetIntegeri_v( GLenum pname
, GLuint index
, GLint
*params
)
1784 enum value_type type
=
1785 find_value_indexed("glGetIntegeri_v", pname
, index
, &v
);
1789 params
[0] = v
.value_int
;
1792 params
[0] = v
.value_int_4
[0];
1793 params
[1] = v
.value_int_4
[1];
1794 params
[2] = v
.value_int_4
[2];
1795 params
[3] = v
.value_int_4
[3];
1798 params
[0] = INT64_TO_INT(v
.value_int
);
1801 ; /* nothing - GL error was recorded */
1806 _mesa_GetInteger64i_v( GLenum pname
, GLuint index
, GLint64
*params
)
1809 enum value_type type
=
1810 find_value_indexed("glGetInteger64i_v", pname
, index
, &v
);
1814 params
[0] = v
.value_int
;
1817 params
[0] = v
.value_int_4
[0];
1818 params
[1] = v
.value_int_4
[1];
1819 params
[2] = v
.value_int_4
[2];
1820 params
[3] = v
.value_int_4
[3];
1823 params
[0] = v
.value_int
;
1826 ; /* nothing - GL error was recorded */
1831 _mesa_GetFixedv(GLenum pname
, GLfixed
*params
)
1833 const struct value_desc
*d
;
1839 d
= find_value("glGetDoublev", pname
, &p
, &v
);
1844 params
[0] = INT_TO_FIXED(d
->offset
);
1849 params
[3] = FLOAT_TO_FIXED(((GLfloat
*) p
)[3]);
1852 params
[2] = FLOAT_TO_FIXED(((GLfloat
*) p
)[2]);
1855 params
[1] = FLOAT_TO_FIXED(((GLfloat
*) p
)[1]);
1858 params
[0] = FLOAT_TO_FIXED(((GLfloat
*) p
)[0]);
1862 params
[0] = FLOAT_TO_FIXED(((GLdouble
*) p
)[0]);
1866 params
[3] = INT_TO_FIXED(((GLint
*) p
)[3]);
1868 params
[2] = INT_TO_FIXED(((GLint
*) p
)[2]);
1871 params
[1] = INT_TO_FIXED(((GLint
*) p
)[1]);
1874 params
[0] = INT_TO_FIXED(((GLint
*) p
)[0]);
1878 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1879 params
[i
] = INT_TO_FIXED(v
.value_int_n
.ints
[i
]);
1883 params
[0] = ((GLint64
*) p
)[0];
1887 params
[0] = BOOLEAN_TO_FIXED(((GLboolean
*) p
)[0]);
1891 m
= *(GLmatrix
**) p
;
1892 for (i
= 0; i
< 16; i
++)
1893 params
[i
] = FLOAT_TO_FIXED(m
->m
[i
]);
1897 m
= *(GLmatrix
**) p
;
1898 for (i
= 0; i
< 16; i
++)
1899 params
[i
] = FLOAT_TO_FIXED(m
->m
[transpose
[i
]]);
1910 shift
= d
->type
- TYPE_BIT_0
;
1911 params
[0] = BOOLEAN_TO_FIXED((*(GLbitfield
*) p
>> shift
) & 1);