1/*
2 * Copyright (C) 2010  Brian Paul   All Rights Reserved.
3 * Copyright (C) 2010  Intel Corporation
4 *
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:
11 *
12 * The above copyright notice and this permission notice shall be included
13 * in all copies or substantial portions of the Software.
14 *
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.
21 *
22 * Author: Kristian Høgsberg <krh@bitplanet.net>
23 */
24
25#include "glheader.h"
26#include "context.h"
27#include "enable.h"
28#include "enums.h"
29#include "extensions.h"
30#include "get.h"
31#include "macros.h"
32#include "mfeatures.h"
33#include "mtypes.h"
34#include "state.h"
35#include "texcompress.h"
36#include "framebuffer.h"
37
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.
46 *
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
57 * checks or actions.
58 *
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.
62 */
63
64#undef CONST
65
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) )
70
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) )
75
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))) )
78
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 )
83
84#define ENUM_TO_INT64(E)      ( (GLint64) (E) )
85#define ENUM_TO_FIXED(E)      (E)
86
87enum value_type {
88   TYPE_INVALID,
89   TYPE_API_MASK,
90   TYPE_INT,
91   TYPE_INT_2,
92   TYPE_INT_3,
93   TYPE_INT_4,
94   TYPE_INT_N,
95   TYPE_INT64,
96   TYPE_ENUM,
97   TYPE_ENUM_2,
98   TYPE_BOOLEAN,
99   TYPE_BIT_0,
100   TYPE_BIT_1,
101   TYPE_BIT_2,
102   TYPE_BIT_3,
103   TYPE_BIT_4,
104   TYPE_BIT_5,
105   TYPE_BIT_6,
106   TYPE_BIT_7,
107   TYPE_FLOAT,
108   TYPE_FLOAT_2,
109   TYPE_FLOAT_3,
110   TYPE_FLOAT_4,
111   TYPE_FLOATN,
112   TYPE_FLOATN_2,
113   TYPE_FLOATN_3,
114   TYPE_FLOATN_4,
115   TYPE_DOUBLEN,
116   TYPE_MATRIX,
117   TYPE_MATRIX_T,
118   TYPE_CONST
119};
120
121enum value_location {
122   LOC_BUFFER,
123   LOC_CONTEXT,
124   LOC_ARRAY,
125   LOC_TEXUNIT,
126   LOC_CUSTOM
127};
128
129enum value_extra {
130   EXTRA_END = 0x8000,
131   EXTRA_VERSION_30,
132   EXTRA_VERSION_31,
133   EXTRA_VERSION_32,
134   EXTRA_API_GL,
135   EXTRA_API_ES2,
136   EXTRA_NEW_BUFFERS,
137   EXTRA_NEW_FRAG_CLAMP,
138   EXTRA_VALID_DRAW_BUFFER,
139   EXTRA_VALID_TEXTURE_UNIT,
140   EXTRA_VALID_CLIP_DISTANCE,
141   EXTRA_FLUSH_CURRENT,
142   EXTRA_GLSL_130,
143};
144
145#define NO_EXTRA NULL
146#define NO_OFFSET 0
147
148struct value_desc {
149   GLenum pname;
150   GLubyte location;  /**< enum value_location */
151   GLubyte type;      /**< enum value_type */
152   int offset;
153   const int *extra;
154};
155
156union value {
157   GLfloat value_float;
158   GLfloat value_float_4[4];
159   GLmatrix *value_matrix;
160   GLint value_int;
161   GLint value_int_4[4];
162   GLint64 value_int64;
163   GLenum value_enum;
164
165   /* Sigh, see GL_COMPRESSED_TEXTURE_FORMATS_ARB handling */
166   struct {
167      GLint n, ints[100];
168   } value_int_n;
169   GLboolean value_bool;
170};
171
172#define BUFFER_FIELD(field, type) \
173   LOC_BUFFER, type, offsetof(struct gl_framebuffer, field)
174#define CONTEXT_FIELD(field, type) \
175   LOC_CONTEXT, type, offsetof(struct gl_context, field)
176#define ARRAY_FIELD(field, type) \
177   LOC_ARRAY, type, offsetof(struct gl_array_object, field)
178#define CONST(value) \
179   LOC_CONTEXT, TYPE_CONST, value
180
181#define BUFFER_INT(field) BUFFER_FIELD(field, TYPE_INT)
182#define BUFFER_ENUM(field) BUFFER_FIELD(field, TYPE_ENUM)
183#define BUFFER_BOOL(field) BUFFER_FIELD(field, TYPE_BOOLEAN)
184
185#define CONTEXT_INT(field) CONTEXT_FIELD(field, TYPE_INT)
186#define CONTEXT_INT2(field) CONTEXT_FIELD(field, TYPE_INT_2)
187#define CONTEXT_INT64(field) CONTEXT_FIELD(field, TYPE_INT64)
188#define CONTEXT_ENUM(field) CONTEXT_FIELD(field, TYPE_ENUM)
189#define CONTEXT_ENUM2(field) CONTEXT_FIELD(field, TYPE_ENUM_2)
190#define CONTEXT_BOOL(field) CONTEXT_FIELD(field, TYPE_BOOLEAN)
191#define CONTEXT_BIT0(field) CONTEXT_FIELD(field, TYPE_BIT_0)
192#define CONTEXT_BIT1(field) CONTEXT_FIELD(field, TYPE_BIT_1)
193#define CONTEXT_BIT2(field) CONTEXT_FIELD(field, TYPE_BIT_2)
194#define CONTEXT_BIT3(field) CONTEXT_FIELD(field, TYPE_BIT_3)
195#define CONTEXT_BIT4(field) CONTEXT_FIELD(field, TYPE_BIT_4)
196#define CONTEXT_BIT5(field) CONTEXT_FIELD(field, TYPE_BIT_5)
197#define CONTEXT_BIT6(field) CONTEXT_FIELD(field, TYPE_BIT_6)
198#define CONTEXT_BIT7(field) CONTEXT_FIELD(field, TYPE_BIT_7)
199#define CONTEXT_FLOAT(field) CONTEXT_FIELD(field, TYPE_FLOAT)
200#define CONTEXT_FLOAT2(field) CONTEXT_FIELD(field, TYPE_FLOAT_2)
201#define CONTEXT_FLOAT3(field) CONTEXT_FIELD(field, TYPE_FLOAT_3)
202#define CONTEXT_FLOAT4(field) CONTEXT_FIELD(field, TYPE_FLOAT_4)
203#define CONTEXT_MATRIX(field) CONTEXT_FIELD(field, TYPE_MATRIX)
204#define CONTEXT_MATRIX_T(field) CONTEXT_FIELD(field, TYPE_MATRIX_T)
205
206#define ARRAY_INT(field) ARRAY_FIELD(field, TYPE_INT)
207#define ARRAY_ENUM(field) ARRAY_FIELD(field, TYPE_ENUM)
208#define ARRAY_BOOL(field) ARRAY_FIELD(field, TYPE_BOOLEAN)
209
210#define EXT(f)					\
211   offsetof(struct gl_extensions, f)
212
213#define EXTRA_EXT(e)				\
214   static const int extra_##e[] = {		\
215      EXT(e), EXTRA_END				\
216   }
217
218#define EXTRA_EXT2(e1, e2)			\
219   static const int extra_##e1##_##e2[] = {	\
220      EXT(e1), EXT(e2), EXTRA_END		\
221   }
222
223/* The 'extra' mechanism is a way to specify extra checks (such as
224 * extensions or specific gl versions) or actions (flush current, new
225 * buffers) that we need to do before looking up an enum.  We need to
226 * declare them all up front so we can refer to them in the value_desc
227 * structs below. */
228
229static const int extra_new_buffers[] = {
230   EXTRA_NEW_BUFFERS,
231   EXTRA_END
232};
233
234static const int extra_new_frag_clamp[] = {
235   EXTRA_NEW_FRAG_CLAMP,
236   EXTRA_END
237};
238
239static const int extra_valid_draw_buffer[] = {
240   EXTRA_VALID_DRAW_BUFFER,
241   EXTRA_END
242};
243
244static const int extra_valid_texture_unit[] = {
245   EXTRA_VALID_TEXTURE_UNIT,
246   EXTRA_END
247};
248
249static const int extra_valid_clip_distance[] = {
250   EXTRA_VALID_CLIP_DISTANCE,
251   EXTRA_END
252};
253
254static const int extra_flush_current_valid_texture_unit[] = {
255   EXTRA_FLUSH_CURRENT,
256   EXTRA_VALID_TEXTURE_UNIT,
257   EXTRA_END
258};
259
260static const int extra_flush_current[] = {
261   EXTRA_FLUSH_CURRENT,
262   EXTRA_END
263};
264
265static const int extra_EXT_secondary_color_flush_current[] = {
266   EXT(EXT_secondary_color),
267   EXTRA_FLUSH_CURRENT,
268   EXTRA_END
269};
270
271static const int extra_EXT_fog_coord_flush_current[] = {
272   EXT(EXT_fog_coord),
273   EXTRA_FLUSH_CURRENT,
274   EXTRA_END
275};
276
277static const int extra_EXT_texture_integer[] = {
278   EXT(EXT_texture_integer),
279   EXTRA_END
280};
281
282static const int extra_GLSL_130[] = {
283   EXTRA_GLSL_130,
284   EXTRA_END
285};
286
287static const int extra_texture_buffer_object[] = {
288   EXTRA_VERSION_31,
289   EXT(ARB_texture_buffer_object),
290   EXTRA_END
291};
292
293static const int extra_ARB_uniform_buffer_object_and_geometry_shader[] = {
294   EXT(ARB_uniform_buffer_object),
295   EXT(ARB_geometry_shader4),
296   EXTRA_END
297};
298
299
300EXTRA_EXT(ARB_ES2_compatibility);
301EXTRA_EXT(ARB_texture_cube_map);
302EXTRA_EXT(MESA_texture_array);
303EXTRA_EXT2(EXT_secondary_color, ARB_vertex_program);
304EXTRA_EXT(EXT_secondary_color);
305EXTRA_EXT(EXT_fog_coord);
306EXTRA_EXT(NV_fog_distance);
307EXTRA_EXT(EXT_texture_filter_anisotropic);
308EXTRA_EXT(IBM_rasterpos_clip);
309EXTRA_EXT(NV_point_sprite);
310EXTRA_EXT(NV_vertex_program);
311EXTRA_EXT(NV_fragment_program);
312EXTRA_EXT(NV_texture_rectangle);
313EXTRA_EXT(EXT_stencil_two_side);
314EXTRA_EXT(NV_light_max_exponent);
315EXTRA_EXT(EXT_depth_bounds_test);
316EXTRA_EXT(ARB_depth_clamp);
317EXTRA_EXT(ATI_fragment_shader);
318EXTRA_EXT(EXT_framebuffer_blit);
319EXTRA_EXT(ARB_shader_objects);
320EXTRA_EXT(EXT_provoking_vertex);
321EXTRA_EXT(ARB_fragment_shader);
322EXTRA_EXT(ARB_fragment_program);
323EXTRA_EXT2(ARB_framebuffer_object, EXT_framebuffer_multisample);
324EXTRA_EXT(EXT_framebuffer_object);
325EXTRA_EXT(ARB_seamless_cube_map);
326EXTRA_EXT(EXT_compiled_vertex_array);
327EXTRA_EXT(ARB_sync);
328EXTRA_EXT(ARB_vertex_shader);
329EXTRA_EXT(EXT_transform_feedback);
330EXTRA_EXT(ARB_transform_feedback2);
331EXTRA_EXT(ARB_transform_feedback3);
332EXTRA_EXT(EXT_pixel_buffer_object);
333EXTRA_EXT(ARB_vertex_program);
334EXTRA_EXT2(NV_point_sprite, ARB_point_sprite);
335EXTRA_EXT2(ARB_fragment_program, NV_fragment_program);
336EXTRA_EXT2(ARB_vertex_program, NV_vertex_program);
337EXTRA_EXT2(ARB_vertex_program, ARB_fragment_program);
338EXTRA_EXT(ARB_geometry_shader4);
339EXTRA_EXT(ARB_color_buffer_float);
340EXTRA_EXT(ARB_copy_buffer);
341EXTRA_EXT(EXT_framebuffer_sRGB);
342EXTRA_EXT(ARB_texture_buffer_object);
343EXTRA_EXT(OES_EGL_image_external);
344EXTRA_EXT(ARB_blend_func_extended);
345EXTRA_EXT(ARB_uniform_buffer_object);
346EXTRA_EXT(ARB_timer_query);
347
348static const int
349extra_ARB_vertex_program_ARB_fragment_program_NV_vertex_program[] = {
350   EXT(ARB_vertex_program),
351   EXT(ARB_fragment_program),
352   EXT(NV_vertex_program),
353   EXTRA_END
354};
355
356static const int
357extra_NV_vertex_program_ARB_vertex_program_ARB_fragment_program_NV_vertex_program[] = {
358   EXT(NV_vertex_program),
359   EXT(ARB_vertex_program),
360   EXT(ARB_fragment_program),
361   EXT(NV_vertex_program),
362   EXTRA_END
363};
364
365static const int
366extra_NV_primitive_restart[] = {
367   EXT(NV_primitive_restart),
368   EXTRA_END
369};
370
371static const int extra_version_30[] = { EXTRA_VERSION_30, EXTRA_END };
372static const int extra_version_31[] = { EXTRA_VERSION_31, EXTRA_END };
373static const int extra_version_32[] = { EXTRA_VERSION_32, EXTRA_END };
374
375static const int
376extra_ARB_vertex_program_api_es2[] = {
377   EXT(ARB_vertex_program),
378   EXTRA_API_ES2,
379   EXTRA_END
380};
381
382/* The ReadBuffer get token is valid under either full GL or under
383 * GLES2 if the NV_read_buffer extension is available. */
384static const int
385extra_NV_read_buffer_api_gl[] = {
386   EXT(NV_read_buffer),
387   EXTRA_API_GL,
388   EXTRA_END
389};
390
391#define API_OPENGL_BIT (1 << API_OPENGL)
392#define API_OPENGLES_BIT (1 << API_OPENGLES)
393#define API_OPENGLES2_BIT (1 << API_OPENGLES2)
394#define API_OPENGL_CORE_BIT (1 << API_OPENGL_CORE)
395
396/* This is the big table describing all the enums we accept in
397 * glGet*v().  The table is partitioned into six parts: enums
398 * understood by all GL APIs (OpenGL, GLES and GLES2), enums shared
399 * between OpenGL and GLES, enums exclusive to GLES, etc for the
400 * remaining combinations.  When we add the enums to the hash table in
401 * _mesa_init_get_hash(), we only add the enums for the API we're
402 * instantiating and the different sections are guarded by #if
403 * FEATURE_GL etc to make sure we only compile in the enums we may
404 * need. */
405
406static const struct value_desc values[] = {
407   /* Enums shared between OpenGL, GLES1 and GLES2 */
408   { 0, 0, TYPE_API_MASK,
409     API_OPENGL_BIT | API_OPENGLES_BIT | API_OPENGLES2_BIT |
410       API_OPENGL_CORE_BIT,
411     NO_EXTRA},
412   { GL_ALPHA_BITS, BUFFER_INT(Visual.alphaBits), extra_new_buffers },
413   { GL_BLEND, CONTEXT_BIT0(Color.BlendEnabled), NO_EXTRA },
414   { GL_BLEND_SRC, CONTEXT_ENUM(Color.Blend[0].SrcRGB), NO_EXTRA },
415   { GL_BLUE_BITS, BUFFER_INT(Visual.blueBits), extra_new_buffers },
416   { GL_COLOR_CLEAR_VALUE, LOC_CUSTOM, TYPE_FLOATN_4, 0, extra_new_frag_clamp },
417   { GL_COLOR_WRITEMASK, LOC_CUSTOM, TYPE_INT_4, 0, NO_EXTRA },
418   { GL_CULL_FACE, CONTEXT_BOOL(Polygon.CullFlag), NO_EXTRA },
419   { GL_CULL_FACE_MODE, CONTEXT_ENUM(Polygon.CullFaceMode), NO_EXTRA },
420   { GL_DEPTH_BITS, BUFFER_INT(Visual.depthBits), NO_EXTRA },
421   { GL_DEPTH_CLEAR_VALUE, CONTEXT_FIELD(Depth.Clear, TYPE_DOUBLEN), NO_EXTRA },
422   { GL_DEPTH_FUNC, CONTEXT_ENUM(Depth.Func), NO_EXTRA },
423   { GL_DEPTH_RANGE, CONTEXT_FIELD(Viewport.Near, TYPE_FLOATN_2), NO_EXTRA },
424   { GL_DEPTH_TEST, CONTEXT_BOOL(Depth.Test), NO_EXTRA },
425   { GL_DEPTH_WRITEMASK, CONTEXT_BOOL(Depth.Mask), NO_EXTRA },
426   { GL_DITHER, CONTEXT_BOOL(Color.DitherFlag), NO_EXTRA },
427   { GL_FRONT_FACE, CONTEXT_ENUM(Polygon.FrontFace), NO_EXTRA },
428   { GL_GREEN_BITS, BUFFER_INT(Visual.greenBits), extra_new_buffers },
429   { GL_LINE_WIDTH, CONTEXT_FLOAT(Line.Width), NO_EXTRA },
430   { GL_ALIASED_LINE_WIDTH_RANGE, CONTEXT_FLOAT2(Const.MinLineWidth), NO_EXTRA },
431   { GL_MAX_ELEMENTS_VERTICES, CONTEXT_INT(Const.MaxArrayLockSize), NO_EXTRA },
432   { GL_MAX_ELEMENTS_INDICES, CONTEXT_INT(Const.MaxArrayLockSize), NO_EXTRA },
433   { GL_MAX_TEXTURE_SIZE, LOC_CUSTOM, TYPE_INT,
434     offsetof(struct gl_context, Const.MaxTextureLevels), NO_EXTRA },
435   { GL_MAX_VIEWPORT_DIMS, CONTEXT_INT2(Const.MaxViewportWidth), NO_EXTRA },
436   { GL_PACK_ALIGNMENT, CONTEXT_INT(Pack.Alignment), NO_EXTRA },
437   { GL_ALIASED_POINT_SIZE_RANGE, CONTEXT_FLOAT2(Const.MinPointSize), NO_EXTRA },
438   { GL_POLYGON_OFFSET_FACTOR, CONTEXT_FLOAT(Polygon.OffsetFactor ), NO_EXTRA },
439   { GL_POLYGON_OFFSET_UNITS, CONTEXT_FLOAT(Polygon.OffsetUnits ), NO_EXTRA },
440   { GL_POLYGON_OFFSET_FILL, CONTEXT_BOOL(Polygon.OffsetFill), NO_EXTRA },
441   { GL_RED_BITS, BUFFER_INT(Visual.redBits), extra_new_buffers },
442   { GL_SCISSOR_BOX, LOC_CUSTOM, TYPE_INT_4, 0, NO_EXTRA },
443   { GL_SCISSOR_TEST, CONTEXT_BOOL(Scissor.Enabled), NO_EXTRA },
444   { GL_STENCIL_BITS, BUFFER_INT(Visual.stencilBits), NO_EXTRA },
445   { GL_STENCIL_CLEAR_VALUE, CONTEXT_INT(Stencil.Clear), NO_EXTRA },
446   { GL_STENCIL_FAIL, LOC_CUSTOM, TYPE_ENUM, NO_OFFSET, NO_EXTRA },
447   { GL_STENCIL_FUNC, LOC_CUSTOM, TYPE_ENUM, NO_OFFSET, NO_EXTRA },
448   { GL_STENCIL_PASS_DEPTH_FAIL, LOC_CUSTOM, TYPE_ENUM, NO_OFFSET, NO_EXTRA },
449   { GL_STENCIL_PASS_DEPTH_PASS, LOC_CUSTOM, TYPE_ENUM, NO_OFFSET, NO_EXTRA },
450   { GL_STENCIL_REF, LOC_CUSTOM, TYPE_INT, NO_OFFSET, NO_EXTRA },
451   { GL_STENCIL_TEST, CONTEXT_BOOL(Stencil.Enabled), NO_EXTRA },
452   { GL_STENCIL_VALUE_MASK, LOC_CUSTOM, TYPE_INT, NO_OFFSET, NO_EXTRA },
453   { GL_STENCIL_WRITEMASK, LOC_CUSTOM, TYPE_INT, NO_OFFSET, NO_EXTRA },
454   { GL_SUBPIXEL_BITS, CONTEXT_INT(Const.SubPixelBits), NO_EXTRA },
455   { GL_TEXTURE_BINDING_2D, LOC_CUSTOM, TYPE_INT, TEXTURE_2D_INDEX, NO_EXTRA },
456   { GL_UNPACK_ALIGNMENT, CONTEXT_INT(Unpack.Alignment), NO_EXTRA },
457   { GL_VIEWPORT, LOC_CUSTOM, TYPE_INT_4, 0, NO_EXTRA },
458
459   /* GL_ARB_multitexture */
460   { GL_ACTIVE_TEXTURE, LOC_CUSTOM, TYPE_INT, 0, NO_EXTRA },
461
462   /* Note that all the OES_* extensions require that the Mesa "struct
463    * gl_extensions" include a member with the name of the extension.
464    * That structure does not yet include OES extensions (and we're
465    * not sure whether it will).  If it does, all the OES_*
466    * extensions below should mark the dependency. */
467
468   /* GL_ARB_texture_cube_map */
469   { GL_TEXTURE_BINDING_CUBE_MAP_ARB, LOC_CUSTOM, TYPE_INT,
470     TEXTURE_CUBE_INDEX, extra_ARB_texture_cube_map },
471   { GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB, LOC_CUSTOM, TYPE_INT,
472     offsetof(struct gl_context, Const.MaxCubeTextureLevels),
473     extra_ARB_texture_cube_map }, /* XXX: OES_texture_cube_map */
474
475   /* XXX: OES_blend_subtract */
476   { GL_BLEND_SRC_RGB_EXT, CONTEXT_ENUM(Color.Blend[0].SrcRGB), NO_EXTRA },
477   { GL_BLEND_DST_RGB_EXT, CONTEXT_ENUM(Color.Blend[0].DstRGB), NO_EXTRA },
478   { GL_BLEND_SRC_ALPHA_EXT, CONTEXT_ENUM(Color.Blend[0].SrcA), NO_EXTRA },
479   { GL_BLEND_DST_ALPHA_EXT, CONTEXT_ENUM(Color.Blend[0].DstA), NO_EXTRA },
480
481   /* GL_BLEND_EQUATION_RGB, which is what we're really after, is
482    * defined identically to GL_BLEND_EQUATION. */
483   { GL_BLEND_EQUATION, CONTEXT_ENUM(Color.Blend[0].EquationRGB), NO_EXTRA },
484   { GL_BLEND_EQUATION_ALPHA_EXT, CONTEXT_ENUM(Color.Blend[0].EquationA), NO_EXTRA },
485
486   /* GL_ARB_texture_compression */
487   { GL_NUM_COMPRESSED_TEXTURE_FORMATS_ARB, LOC_CUSTOM, TYPE_INT, 0, NO_EXTRA },
488   { GL_COMPRESSED_TEXTURE_FORMATS_ARB, LOC_CUSTOM, TYPE_INT_N, 0, NO_EXTRA },
489
490   /* GL_ARB_multisample */
491   { GL_SAMPLE_ALPHA_TO_COVERAGE_ARB,
492     CONTEXT_BOOL(Multisample.SampleAlphaToCoverage), NO_EXTRA },
493   { GL_SAMPLE_COVERAGE_ARB, CONTEXT_BOOL(Multisample.SampleCoverage), NO_EXTRA },
494   { GL_SAMPLE_COVERAGE_VALUE_ARB,
495     CONTEXT_FLOAT(Multisample.SampleCoverageValue), NO_EXTRA },
496   { GL_SAMPLE_COVERAGE_INVERT_ARB,
497     CONTEXT_BOOL(Multisample.SampleCoverageInvert), NO_EXTRA },
498   { GL_SAMPLE_BUFFERS_ARB, BUFFER_INT(Visual.sampleBuffers), NO_EXTRA },
499   { GL_SAMPLES_ARB, BUFFER_INT(Visual.samples), NO_EXTRA },
500
501   /* GL_SGIS_generate_mipmap */
502   { GL_GENERATE_MIPMAP_HINT_SGIS, CONTEXT_ENUM(Hint.GenerateMipmap), NO_EXTRA },
503
504   /* GL_ARB_vertex_buffer_object */
505   { GL_ARRAY_BUFFER_BINDING_ARB, LOC_CUSTOM, TYPE_INT, 0, NO_EXTRA },
506
507   /* GL_ARB_vertex_buffer_object */
508   /* GL_WEIGHT_ARRAY_BUFFER_BINDING_ARB - not supported */
509   { GL_ELEMENT_ARRAY_BUFFER_BINDING_ARB, LOC_CUSTOM, TYPE_INT, 0, NO_EXTRA },
510
511   /* GL_ARB_color_buffer_float */
512   { GL_CLAMP_VERTEX_COLOR, CONTEXT_ENUM(Light.ClampVertexColor), extra_ARB_color_buffer_float },
513   { GL_CLAMP_FRAGMENT_COLOR, CONTEXT_ENUM(Color.ClampFragmentColor), extra_ARB_color_buffer_float },
514   { GL_CLAMP_READ_COLOR, CONTEXT_ENUM(Color.ClampReadColor), extra_ARB_color_buffer_float },
515
516   /* GL_ARB_copy_buffer */
517   { GL_COPY_READ_BUFFER, LOC_CUSTOM, TYPE_INT, 0, extra_ARB_copy_buffer },
518   { GL_COPY_WRITE_BUFFER, LOC_CUSTOM, TYPE_INT, 0, extra_ARB_copy_buffer },
519
520   /* GL_OES_read_format */
521   { GL_IMPLEMENTATION_COLOR_READ_TYPE_OES, LOC_CUSTOM, TYPE_INT, 0,
522     extra_new_buffers },
523   { GL_IMPLEMENTATION_COLOR_READ_FORMAT_OES, LOC_CUSTOM, TYPE_INT, 0,
524     extra_new_buffers },
525
526   /* GL_EXT_framebuffer_object */
527   { GL_FRAMEBUFFER_BINDING_EXT, BUFFER_INT(Name),
528     extra_EXT_framebuffer_object },
529   { GL_RENDERBUFFER_BINDING_EXT, LOC_CUSTOM, TYPE_INT, 0,
530     extra_EXT_framebuffer_object },
531   { GL_MAX_RENDERBUFFER_SIZE_EXT, CONTEXT_INT(Const.MaxRenderbufferSize),
532     extra_EXT_framebuffer_object },
533
534   /* This entry isn't spec'ed for GLES 2, but is needed for Mesa's
535    * GLSL: */
536   { GL_MAX_CLIP_PLANES, CONTEXT_INT(Const.MaxClipPlanes), NO_EXTRA },
537
538   /* GL_{APPLE,ARB,OES}_vertex_array_object */
539   { GL_VERTEX_ARRAY_BINDING_APPLE, ARRAY_INT(Name), NO_EXTRA },
540
541   /* GL_EXT_texture_filter_anisotropic */
542   { GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT,
543     CONTEXT_FLOAT(Const.MaxTextureMaxAnisotropy),
544     extra_EXT_texture_filter_anisotropic },
545
546#if FEATURE_GL || FEATURE_ES1
547   /* Enums in OpenGL and GLES1 */
548   { 0, 0, TYPE_API_MASK, API_OPENGL_BIT | API_OPENGLES_BIT | API_OPENGL_CORE_BIT, NO_EXTRA },
549   { GL_MAX_LIGHTS, CONTEXT_INT(Const.MaxLights), NO_EXTRA },
550   { GL_LIGHT0, CONTEXT_BOOL(Light.Light[0].Enabled), NO_EXTRA },
551   { GL_LIGHT1, CONTEXT_BOOL(Light.Light[1].Enabled), NO_EXTRA },
552   { GL_LIGHT2, CONTEXT_BOOL(Light.Light[2].Enabled), NO_EXTRA },
553   { GL_LIGHT3, CONTEXT_BOOL(Light.Light[3].Enabled), NO_EXTRA },
554   { GL_LIGHT4, CONTEXT_BOOL(Light.Light[4].Enabled), NO_EXTRA },
555   { GL_LIGHT5, CONTEXT_BOOL(Light.Light[5].Enabled), NO_EXTRA },
556   { GL_LIGHT6, CONTEXT_BOOL(Light.Light[6].Enabled), NO_EXTRA },
557   { GL_LIGHT7, CONTEXT_BOOL(Light.Light[7].Enabled), NO_EXTRA },
558   { GL_LIGHTING, CONTEXT_BOOL(Light.Enabled), NO_EXTRA },
559   { GL_LIGHT_MODEL_AMBIENT,
560     CONTEXT_FIELD(Light.Model.Ambient[0], TYPE_FLOATN_4), NO_EXTRA },
561   { GL_LIGHT_MODEL_TWO_SIDE, CONTEXT_BOOL(Light.Model.TwoSide), NO_EXTRA },
562   { GL_ALPHA_TEST, CONTEXT_BOOL(Color.AlphaEnabled), NO_EXTRA },
563   { GL_ALPHA_TEST_FUNC, CONTEXT_ENUM(Color.AlphaFunc), NO_EXTRA },
564   { GL_ALPHA_TEST_REF, LOC_CUSTOM, TYPE_FLOATN, 0, extra_new_frag_clamp },
565   { GL_BLEND_DST, CONTEXT_ENUM(Color.Blend[0].DstRGB), NO_EXTRA },
566   { GL_CLIP_DISTANCE0, CONTEXT_BIT0(Transform.ClipPlanesEnabled), extra_valid_clip_distance },
567   { GL_CLIP_DISTANCE1, CONTEXT_BIT1(Transform.ClipPlanesEnabled), extra_valid_clip_distance },
568   { GL_CLIP_DISTANCE2, CONTEXT_BIT2(Transform.ClipPlanesEnabled), extra_valid_clip_distance },
569   { GL_CLIP_DISTANCE3, CONTEXT_BIT3(Transform.ClipPlanesEnabled), extra_valid_clip_distance },
570   { GL_CLIP_DISTANCE4, CONTEXT_BIT4(Transform.ClipPlanesEnabled), extra_valid_clip_distance },
571   { GL_CLIP_DISTANCE5, CONTEXT_BIT5(Transform.ClipPlanesEnabled), extra_valid_clip_distance },
572   { GL_CLIP_DISTANCE6, CONTEXT_BIT6(Transform.ClipPlanesEnabled), extra_valid_clip_distance },
573   { GL_CLIP_DISTANCE7, CONTEXT_BIT7(Transform.ClipPlanesEnabled), extra_valid_clip_distance },
574   { GL_COLOR_MATERIAL, CONTEXT_BOOL(Light.ColorMaterialEnabled), NO_EXTRA },
575   { GL_CURRENT_COLOR,
576     CONTEXT_FIELD(Current.Attrib[VERT_ATTRIB_COLOR0][0], TYPE_FLOATN_4),
577     extra_flush_current },
578   { GL_CURRENT_NORMAL,
579     CONTEXT_FIELD(Current.Attrib[VERT_ATTRIB_NORMAL][0], TYPE_FLOATN_3),
580     extra_flush_current },
581   { GL_CURRENT_TEXTURE_COORDS, LOC_CUSTOM, TYPE_FLOAT_4, 0,
582     extra_flush_current_valid_texture_unit },
583   { GL_DISTANCE_ATTENUATION_EXT, CONTEXT_FLOAT3(Point.Params[0]), NO_EXTRA },
584   { GL_FOG, CONTEXT_BOOL(Fog.Enabled), NO_EXTRA },
585   { GL_FOG_COLOR, LOC_CUSTOM, TYPE_FLOATN_4, 0, extra_new_frag_clamp },
586   { GL_FOG_DENSITY, CONTEXT_FLOAT(Fog.Density), NO_EXTRA },
587   { GL_FOG_END, CONTEXT_FLOAT(Fog.End), NO_EXTRA },
588   { GL_FOG_HINT, CONTEXT_ENUM(Hint.Fog), NO_EXTRA },
589   { GL_FOG_MODE, CONTEXT_ENUM(Fog.Mode), NO_EXTRA },
590   { GL_FOG_START, CONTEXT_FLOAT(Fog.Start), NO_EXTRA },
591   { GL_LINE_SMOOTH, CONTEXT_BOOL(Line.SmoothFlag), NO_EXTRA },
592   { GL_LINE_SMOOTH_HINT, CONTEXT_ENUM(Hint.LineSmooth), NO_EXTRA },
593   { GL_LINE_WIDTH_RANGE, CONTEXT_FLOAT2(Const.MinLineWidthAA), NO_EXTRA },
594   { GL_COLOR_LOGIC_OP, CONTEXT_BOOL(Color.ColorLogicOpEnabled), NO_EXTRA },
595   { GL_LOGIC_OP_MODE, CONTEXT_ENUM(Color.LogicOp), NO_EXTRA },
596   { GL_MATRIX_MODE, CONTEXT_ENUM(Transform.MatrixMode), NO_EXTRA },
597   { GL_MAX_MODELVIEW_STACK_DEPTH, CONST(MAX_MODELVIEW_STACK_DEPTH), NO_EXTRA },
598   { GL_MAX_PROJECTION_STACK_DEPTH, CONST(MAX_PROJECTION_STACK_DEPTH), NO_EXTRA },
599   { GL_MAX_TEXTURE_STACK_DEPTH, CONST(MAX_TEXTURE_STACK_DEPTH), NO_EXTRA },
600   { GL_MODELVIEW_MATRIX, CONTEXT_MATRIX(ModelviewMatrixStack.Top), NO_EXTRA },
601   { GL_MODELVIEW_STACK_DEPTH, LOC_CUSTOM, TYPE_INT,
602     offsetof(struct gl_context, ModelviewMatrixStack.Depth), NO_EXTRA },
603   { GL_NORMALIZE, CONTEXT_BOOL(Transform.Normalize), NO_EXTRA },
604   { GL_PACK_SKIP_IMAGES_EXT, CONTEXT_INT(Pack.SkipImages), NO_EXTRA },
605   { GL_PERSPECTIVE_CORRECTION_HINT, CONTEXT_ENUM(Hint.PerspectiveCorrection), NO_EXTRA },
606   { GL_POINT_SIZE, CONTEXT_FLOAT(Point.Size), NO_EXTRA },
607   { GL_POINT_SIZE_RANGE, CONTEXT_FLOAT2(Const.MinPointSizeAA), NO_EXTRA },
608   { GL_POINT_SMOOTH, CONTEXT_BOOL(Point.SmoothFlag), NO_EXTRA },
609   { GL_POINT_SMOOTH_HINT, CONTEXT_ENUM(Hint.PointSmooth), NO_EXTRA },
610   { GL_POINT_SIZE_MIN_EXT, CONTEXT_FLOAT(Point.MinSize), NO_EXTRA },
611   { GL_POINT_SIZE_MAX_EXT, CONTEXT_FLOAT(Point.MaxSize), NO_EXTRA },
612   { GL_POINT_FADE_THRESHOLD_SIZE_EXT, CONTEXT_FLOAT(Point.Threshold), NO_EXTRA },
613   { GL_PROJECTION_MATRIX, CONTEXT_MATRIX(ProjectionMatrixStack.Top), NO_EXTRA },
614   { GL_PROJECTION_STACK_DEPTH, LOC_CUSTOM, TYPE_INT,
615     offsetof(struct gl_context, ProjectionMatrixStack.Depth), NO_EXTRA },
616   { GL_RESCALE_NORMAL, CONTEXT_BOOL(Transform.RescaleNormals), NO_EXTRA },
617   { GL_SHADE_MODEL, CONTEXT_ENUM(Light.ShadeModel), NO_EXTRA },
618   { GL_TEXTURE_2D, LOC_CUSTOM, TYPE_BOOLEAN, 0, NO_EXTRA },
619   { GL_TEXTURE_MATRIX, LOC_CUSTOM, TYPE_MATRIX, 0, extra_valid_texture_unit },
620   { GL_TEXTURE_STACK_DEPTH, LOC_CUSTOM, TYPE_INT, 0,
621     extra_valid_texture_unit  },
622
623   { GL_VERTEX_ARRAY, ARRAY_BOOL(VertexAttrib[VERT_ATTRIB_POS].Enabled), NO_EXTRA },
624   { GL_VERTEX_ARRAY_SIZE, ARRAY_INT(VertexAttrib[VERT_ATTRIB_POS].Size), NO_EXTRA },
625   { GL_VERTEX_ARRAY_TYPE, ARRAY_ENUM(VertexAttrib[VERT_ATTRIB_POS].Type), NO_EXTRA },
626   { GL_VERTEX_ARRAY_STRIDE, ARRAY_INT(VertexAttrib[VERT_ATTRIB_POS].Stride), NO_EXTRA },
627   { GL_NORMAL_ARRAY, ARRAY_BOOL(VertexAttrib[VERT_ATTRIB_NORMAL].Enabled), NO_EXTRA },
628   { GL_NORMAL_ARRAY_TYPE, ARRAY_ENUM(VertexAttrib[VERT_ATTRIB_NORMAL].Type), NO_EXTRA },
629   { GL_NORMAL_ARRAY_STRIDE, ARRAY_INT(VertexAttrib[VERT_ATTRIB_NORMAL].Stride), NO_EXTRA },
630   { GL_COLOR_ARRAY, ARRAY_BOOL(VertexAttrib[VERT_ATTRIB_COLOR0].Enabled), NO_EXTRA },
631   { GL_COLOR_ARRAY_SIZE, ARRAY_INT(VertexAttrib[VERT_ATTRIB_COLOR0].Size), NO_EXTRA },
632   { GL_COLOR_ARRAY_TYPE, ARRAY_ENUM(VertexAttrib[VERT_ATTRIB_COLOR0].Type), NO_EXTRA },
633   { GL_COLOR_ARRAY_STRIDE, ARRAY_INT(VertexAttrib[VERT_ATTRIB_COLOR0].Stride), NO_EXTRA },
634   { GL_TEXTURE_COORD_ARRAY,
635     LOC_CUSTOM, TYPE_BOOLEAN, offsetof(struct gl_client_array, Enabled), NO_EXTRA },
636   { GL_TEXTURE_COORD_ARRAY_SIZE,
637     LOC_CUSTOM, TYPE_INT, offsetof(struct gl_client_array, Size), NO_EXTRA },
638   { GL_TEXTURE_COORD_ARRAY_TYPE,
639     LOC_CUSTOM, TYPE_ENUM, offsetof(struct gl_client_array, Type), NO_EXTRA },
640   { GL_TEXTURE_COORD_ARRAY_STRIDE,
641     LOC_CUSTOM, TYPE_INT, offsetof(struct gl_client_array, Stride), NO_EXTRA },
642
643   /* GL_ARB_ES2_compatibility */
644   { GL_SHADER_COMPILER, CONST(1), extra_ARB_ES2_compatibility },
645   { GL_MAX_VARYING_VECTORS, CONTEXT_INT(Const.MaxVarying),
646     extra_ARB_ES2_compatibility },
647   { GL_MAX_VERTEX_UNIFORM_VECTORS, LOC_CUSTOM, TYPE_INT, 0,
648     extra_ARB_ES2_compatibility },
649   { GL_MAX_FRAGMENT_UNIFORM_VECTORS, LOC_CUSTOM, TYPE_INT, 0,
650     extra_ARB_ES2_compatibility },
651
652   /* GL_ARB_multitexture */
653   { GL_MAX_TEXTURE_UNITS, CONTEXT_INT(Const.MaxTextureUnits), NO_EXTRA },
654   { GL_CLIENT_ACTIVE_TEXTURE, LOC_CUSTOM, TYPE_INT, 0, NO_EXTRA },
655
656   /* GL_ARB_texture_cube_map */
657   { GL_TEXTURE_CUBE_MAP_ARB, LOC_CUSTOM, TYPE_BOOLEAN, 0, NO_EXTRA },
658   /* S, T, and R are always set at the same time */
659   { GL_TEXTURE_GEN_STR_OES, LOC_TEXUNIT, TYPE_BIT_0,
660     offsetof(struct gl_texture_unit, TexGenEnabled), NO_EXTRA },
661
662   /* GL_ARB_multisample */
663   { GL_MULTISAMPLE_ARB, CONTEXT_BOOL(Multisample.Enabled), NO_EXTRA },
664   { GL_SAMPLE_ALPHA_TO_ONE_ARB, CONTEXT_BOOL(Multisample.SampleAlphaToOne), NO_EXTRA },
665
666   /* GL_ARB_vertex_buffer_object */
667   { GL_VERTEX_ARRAY_BUFFER_BINDING_ARB, LOC_CUSTOM, TYPE_INT,
668     offsetof(struct gl_array_object, VertexAttrib[VERT_ATTRIB_POS].BufferObj), NO_EXTRA },
669   { GL_NORMAL_ARRAY_BUFFER_BINDING_ARB, LOC_CUSTOM, TYPE_INT,
670     offsetof(struct gl_array_object, VertexAttrib[VERT_ATTRIB_NORMAL].BufferObj), NO_EXTRA },
671   { GL_COLOR_ARRAY_BUFFER_BINDING_ARB, LOC_CUSTOM, TYPE_INT,
672     offsetof(struct gl_array_object, VertexAttrib[VERT_ATTRIB_COLOR0].BufferObj), NO_EXTRA },
673   { GL_TEXTURE_COORD_ARRAY_BUFFER_BINDING_ARB, LOC_CUSTOM, TYPE_INT, NO_OFFSET, NO_EXTRA },
674
675   /* GL_OES_point_sprite */
676   { GL_POINT_SPRITE_NV,
677     CONTEXT_BOOL(Point.PointSprite),
678     extra_NV_point_sprite_ARB_point_sprite },
679
680   /* GL_ARB_fragment_shader */
681   { GL_MAX_FRAGMENT_UNIFORM_COMPONENTS_ARB,
682     CONTEXT_INT(Const.FragmentProgram.MaxUniformComponents),
683     extra_ARB_fragment_shader },
684
685   /* GL_ARB_vertex_shader */
686   { GL_MAX_VERTEX_UNIFORM_COMPONENTS_ARB,
687     CONTEXT_INT(Const.VertexProgram.MaxUniformComponents),
688     extra_ARB_vertex_shader },
689   { GL_MAX_VARYING_FLOATS_ARB, LOC_CUSTOM, TYPE_INT, 0,
690     extra_ARB_vertex_shader },
691
692   /* GL_EXT_texture_lod_bias */
693   { GL_MAX_TEXTURE_LOD_BIAS_EXT, CONTEXT_FLOAT(Const.MaxTextureLodBias),
694     NO_EXTRA },
695#endif /* FEATURE_GL || FEATURE_ES1 */
696
697#if FEATURE_ES1
698   { 0, 0, TYPE_API_MASK, API_OPENGLES_BIT },
699   /* XXX: OES_matrix_get */
700   { GL_MODELVIEW_MATRIX_FLOAT_AS_INT_BITS_OES },
701   { GL_PROJECTION_MATRIX_FLOAT_AS_INT_BITS_OES },
702   { GL_TEXTURE_MATRIX_FLOAT_AS_INT_BITS_OES },
703
704   /* OES_point_size_array */
705   { GL_POINT_SIZE_ARRAY_OES, ARRAY_FIELD(VertexAttrib[VERT_ATTRIB_POINT_SIZE].Enabled, TYPE_BOOLEAN) },
706   { GL_POINT_SIZE_ARRAY_TYPE_OES, ARRAY_FIELD(VertexAttrib[VERT_ATTRIB_POINT_SIZE].Type, TYPE_ENUM) },
707   { GL_POINT_SIZE_ARRAY_STRIDE_OES, ARRAY_FIELD(VertexAttrib[VERT_ATTRIB_POINT_SIZE].Stride, TYPE_INT) },
708   { GL_POINT_SIZE_ARRAY_BUFFER_BINDING_OES, LOC_CUSTOM, TYPE_INT, 0 },
709#endif /* FEATURE_ES1 */
710
711#if FEATURE_GL || FEATURE_ES2
712   { 0, 0, TYPE_API_MASK, API_OPENGL_BIT | API_OPENGL_CORE_BIT | API_OPENGLES2_BIT, NO_EXTRA },
713   { GL_MAX_TEXTURE_COORDS_ARB, /* == GL_MAX_TEXTURE_COORDS_NV */
714     CONTEXT_INT(Const.MaxTextureCoordUnits),
715     extra_ARB_fragment_program_NV_fragment_program },
716   { GL_PACK_IMAGE_HEIGHT_EXT, CONTEXT_INT(Pack.ImageHeight), NO_EXTRA },
717   { GL_PACK_ROW_LENGTH, CONTEXT_INT(Pack.RowLength), NO_EXTRA },
718   { GL_PACK_SKIP_PIXELS, CONTEXT_INT(Pack.SkipPixels), NO_EXTRA },
719   { GL_PACK_SKIP_ROWS, CONTEXT_INT(Pack.SkipRows), NO_EXTRA },
720   { GL_UNPACK_ROW_LENGTH, CONTEXT_INT(Unpack.RowLength), NO_EXTRA },
721   { GL_UNPACK_SKIP_PIXELS, CONTEXT_INT(Unpack.SkipPixels), NO_EXTRA },
722   { GL_UNPACK_SKIP_ROWS, CONTEXT_INT(Unpack.SkipRows), NO_EXTRA },
723   { GL_UNPACK_SKIP_IMAGES_EXT, CONTEXT_INT(Unpack.SkipImages), NO_EXTRA },
724   { GL_UNPACK_IMAGE_HEIGHT_EXT, CONTEXT_INT(Unpack.ImageHeight), NO_EXTRA },
725
726   /* GL_ARB_draw_buffers */
727   { GL_MAX_DRAW_BUFFERS_ARB, CONTEXT_INT(Const.MaxDrawBuffers), NO_EXTRA },
728
729   /* GL_EXT_framebuffer_object / GL_NV_fbo_color_attachments */
730   { GL_MAX_COLOR_ATTACHMENTS, CONTEXT_INT(Const.MaxColorAttachments),
731     extra_EXT_framebuffer_object },
732
733   /* GL_ARB_draw_buffers / GL_NV_draw_buffers (for ES 2.0) */
734   { GL_DRAW_BUFFER0_ARB, BUFFER_ENUM(ColorDrawBuffer[0]), NO_EXTRA },
735   { GL_DRAW_BUFFER1_ARB, BUFFER_ENUM(ColorDrawBuffer[1]),
736     extra_valid_draw_buffer },
737   { GL_DRAW_BUFFER2_ARB, BUFFER_ENUM(ColorDrawBuffer[2]),
738     extra_valid_draw_buffer },
739   { GL_DRAW_BUFFER3_ARB, BUFFER_ENUM(ColorDrawBuffer[3]),
740     extra_valid_draw_buffer },
741   { GL_DRAW_BUFFER4_ARB, BUFFER_ENUM(ColorDrawBuffer[4]),
742     extra_valid_draw_buffer },
743   { GL_DRAW_BUFFER5_ARB, BUFFER_ENUM(ColorDrawBuffer[5]),
744     extra_valid_draw_buffer },
745   { GL_DRAW_BUFFER6_ARB, BUFFER_ENUM(ColorDrawBuffer[6]),
746     extra_valid_draw_buffer },
747   { GL_DRAW_BUFFER7_ARB, BUFFER_ENUM(ColorDrawBuffer[7]),
748     extra_valid_draw_buffer },
749
750   { GL_BLEND_COLOR_EXT, LOC_CUSTOM, TYPE_FLOATN_4, 0, extra_new_frag_clamp },
751   /* GL_ARB_fragment_program */
752   { GL_MAX_TEXTURE_IMAGE_UNITS_ARB, /* == GL_MAX_TEXTURE_IMAGE_UNITS_NV */
753     CONTEXT_INT(Const.MaxTextureImageUnits),
754     extra_ARB_fragment_program_NV_fragment_program },
755   { GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS_ARB,
756     CONTEXT_INT(Const.MaxVertexTextureImageUnits), extra_ARB_vertex_shader },
757   { GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS_ARB,
758     CONTEXT_INT(Const.MaxCombinedTextureImageUnits),
759     extra_ARB_vertex_shader },
760
761   /* GL_ARB_shader_objects
762    * Actually, this token isn't part of GL_ARB_shader_objects, but is
763    * close enough for now. */
764   { GL_CURRENT_PROGRAM, LOC_CUSTOM, TYPE_INT, 0, extra_ARB_shader_objects },
765
766   /* OpenGL 2.0 */
767   { GL_STENCIL_BACK_FUNC, CONTEXT_ENUM(Stencil.Function[1]), NO_EXTRA },
768   { GL_STENCIL_BACK_VALUE_MASK, CONTEXT_INT(Stencil.ValueMask[1]), NO_EXTRA },
769   { GL_STENCIL_BACK_WRITEMASK, CONTEXT_INT(Stencil.WriteMask[1]), NO_EXTRA },
770   { GL_STENCIL_BACK_REF, CONTEXT_INT(Stencil.Ref[1]), NO_EXTRA },
771   { GL_STENCIL_BACK_FAIL, CONTEXT_ENUM(Stencil.FailFunc[1]), NO_EXTRA },
772   { GL_STENCIL_BACK_PASS_DEPTH_FAIL, CONTEXT_ENUM(Stencil.ZFailFunc[1]), NO_EXTRA },
773   { GL_STENCIL_BACK_PASS_DEPTH_PASS, CONTEXT_ENUM(Stencil.ZPassFunc[1]), NO_EXTRA },
774
775   { GL_MAX_VERTEX_ATTRIBS_ARB,
776     CONTEXT_INT(Const.VertexProgram.MaxAttribs),
777     extra_ARB_vertex_program_api_es2 },
778
779   /* OES_texture_3D */
780   { GL_TEXTURE_BINDING_3D, LOC_CUSTOM, TYPE_INT, TEXTURE_3D_INDEX, NO_EXTRA },
781   { GL_MAX_3D_TEXTURE_SIZE, LOC_CUSTOM, TYPE_INT,
782     offsetof(struct gl_context, Const.Max3DTextureLevels), NO_EXTRA },
783
784   /* GL_ARB_fragment_program/OES_standard_derivatives */
785   { GL_FRAGMENT_SHADER_DERIVATIVE_HINT_ARB,
786     CONTEXT_ENUM(Hint.FragmentShaderDerivative), extra_ARB_fragment_shader },
787
788   /* GL_NV_read_buffer */
789   { GL_READ_BUFFER,
790     LOC_CUSTOM, TYPE_ENUM, NO_OFFSET, extra_NV_read_buffer_api_gl },
791
792#endif /* FEATURE_GL || FEATURE_ES2 */
793
794#if FEATURE_ES1 || FEATURE_ES2
795   { 0, 0, TYPE_API_MASK, API_OPENGLES | API_OPENGLES2_BIT, NO_EXTRA },
796   /* GL_OES_EGL_image_external */
797   { GL_TEXTURE_BINDING_EXTERNAL_OES, LOC_CUSTOM,
798     TYPE_INT, TEXTURE_EXTERNAL_INDEX, extra_OES_EGL_image_external },
799   { GL_TEXTURE_EXTERNAL_OES, LOC_CUSTOM,
800     TYPE_BOOLEAN, 0, extra_OES_EGL_image_external },
801#endif
802
803#if FEATURE_ES2
804   /* Enums unique to OpenGL ES 2.0 */
805   { 0, 0, TYPE_API_MASK, API_OPENGLES2_BIT, NO_EXTRA },
806   { GL_MAX_FRAGMENT_UNIFORM_VECTORS, LOC_CUSTOM, TYPE_INT, 0, NO_EXTRA },
807   { GL_MAX_VARYING_VECTORS, CONTEXT_INT(Const.MaxVarying), NO_EXTRA },
808   { GL_MAX_VERTEX_UNIFORM_VECTORS, LOC_CUSTOM, TYPE_INT, 0, NO_EXTRA },
809   { GL_SHADER_COMPILER, CONST(1), NO_EXTRA },
810   /* OES_get_program_binary */
811   { GL_NUM_SHADER_BINARY_FORMATS, CONST(0), NO_EXTRA },
812   { GL_SHADER_BINARY_FORMATS, CONST(0), NO_EXTRA },
813#endif /* FEATURE_ES2 */
814
815#if FEATURE_GL
816   /* Remaining enums are only in OpenGL */
817   { 0, 0, TYPE_API_MASK, API_OPENGL_BIT | API_OPENGL_CORE_BIT, NO_EXTRA },
818   { GL_ACCUM_RED_BITS, BUFFER_INT(Visual.accumRedBits), NO_EXTRA },
819   { GL_ACCUM_GREEN_BITS, BUFFER_INT(Visual.accumGreenBits), NO_EXTRA },
820   { GL_ACCUM_BLUE_BITS, BUFFER_INT(Visual.accumBlueBits), NO_EXTRA },
821   { GL_ACCUM_ALPHA_BITS, BUFFER_INT(Visual.accumAlphaBits), NO_EXTRA },
822   { GL_ACCUM_CLEAR_VALUE, CONTEXT_FIELD(Accum.ClearColor[0], TYPE_FLOATN_4), NO_EXTRA },
823   { GL_ALPHA_BIAS, CONTEXT_FLOAT(Pixel.AlphaBias), NO_EXTRA },
824   { GL_ALPHA_SCALE, CONTEXT_FLOAT(Pixel.AlphaScale), NO_EXTRA },
825   { GL_ATTRIB_STACK_DEPTH, CONTEXT_INT(AttribStackDepth), NO_EXTRA },
826   { GL_AUTO_NORMAL, CONTEXT_BOOL(Eval.AutoNormal), NO_EXTRA },
827   { GL_AUX_BUFFERS, BUFFER_INT(Visual.numAuxBuffers), NO_EXTRA },
828   { GL_BLUE_BIAS, CONTEXT_FLOAT(Pixel.BlueBias), NO_EXTRA },
829   { GL_BLUE_SCALE, CONTEXT_FLOAT(Pixel.BlueScale), NO_EXTRA },
830   { GL_CLIENT_ATTRIB_STACK_DEPTH, CONTEXT_INT(ClientAttribStackDepth), NO_EXTRA },
831   { GL_COLOR_MATERIAL_FACE, CONTEXT_ENUM(Light.ColorMaterialFace), NO_EXTRA },
832   { GL_COLOR_MATERIAL_PARAMETER, CONTEXT_ENUM(Light.ColorMaterialMode), NO_EXTRA },
833   { GL_CURRENT_INDEX,
834     CONTEXT_FLOAT(Current.Attrib[VERT_ATTRIB_COLOR_INDEX][0]),
835     extra_flush_current },
836   { GL_CURRENT_RASTER_COLOR,
837     CONTEXT_FIELD(Current.RasterColor[0], TYPE_FLOATN_4), NO_EXTRA },
838   { GL_CURRENT_RASTER_DISTANCE, CONTEXT_FLOAT(Current.RasterDistance), NO_EXTRA },
839   { GL_CURRENT_RASTER_INDEX, CONST(1), NO_EXTRA },
840   { GL_CURRENT_RASTER_POSITION, CONTEXT_FLOAT4(Current.RasterPos[0]), NO_EXTRA },
841   { GL_CURRENT_RASTER_SECONDARY_COLOR,
842     CONTEXT_FIELD(Current.RasterSecondaryColor[0], TYPE_FLOATN_4), NO_EXTRA },
843   { GL_CURRENT_RASTER_TEXTURE_COORDS, LOC_CUSTOM, TYPE_FLOAT_4, 0,
844     extra_valid_texture_unit },
845   { GL_CURRENT_RASTER_POSITION_VALID, CONTEXT_BOOL(Current.RasterPosValid), NO_EXTRA },
846   { GL_DEPTH_BIAS, CONTEXT_FLOAT(Pixel.DepthBias), NO_EXTRA },
847   { GL_DEPTH_SCALE, CONTEXT_FLOAT(Pixel.DepthScale), NO_EXTRA },
848   { GL_DOUBLEBUFFER, BUFFER_INT(Visual.doubleBufferMode), NO_EXTRA },
849   { GL_DRAW_BUFFER, BUFFER_ENUM(ColorDrawBuffer[0]), NO_EXTRA },
850   { GL_EDGE_FLAG, LOC_CUSTOM, TYPE_BOOLEAN, 0, NO_EXTRA },
851   { GL_FEEDBACK_BUFFER_SIZE, CONTEXT_INT(Feedback.BufferSize), NO_EXTRA },
852   { GL_FEEDBACK_BUFFER_TYPE, CONTEXT_ENUM(Feedback.Type), NO_EXTRA },
853   { GL_FOG_INDEX, CONTEXT_FLOAT(Fog.Index), NO_EXTRA },
854   { GL_GREEN_BIAS, CONTEXT_FLOAT(Pixel.GreenBias), NO_EXTRA },
855   { GL_GREEN_SCALE, CONTEXT_FLOAT(Pixel.GreenScale), NO_EXTRA },
856   { GL_INDEX_BITS, BUFFER_INT(Visual.indexBits), extra_new_buffers },
857   { GL_INDEX_CLEAR_VALUE, CONTEXT_INT(Color.ClearIndex), NO_EXTRA },
858   { GL_INDEX_MODE, CONST(0) , NO_EXTRA},
859   { GL_INDEX_OFFSET, CONTEXT_INT(Pixel.IndexOffset), NO_EXTRA },
860   { GL_INDEX_SHIFT, CONTEXT_INT(Pixel.IndexShift), NO_EXTRA },
861   { GL_INDEX_WRITEMASK, CONTEXT_INT(Color.IndexMask), NO_EXTRA },
862   { GL_LIGHT_MODEL_COLOR_CONTROL, CONTEXT_ENUM(Light.Model.ColorControl), NO_EXTRA },
863   { GL_LIGHT_MODEL_LOCAL_VIEWER, CONTEXT_BOOL(Light.Model.LocalViewer), NO_EXTRA },
864   { GL_LINE_STIPPLE, CONTEXT_BOOL(Line.StippleFlag), NO_EXTRA },
865   { GL_LINE_STIPPLE_PATTERN, LOC_CUSTOM, TYPE_INT, 0, NO_EXTRA },
866   { GL_LINE_STIPPLE_REPEAT, CONTEXT_INT(Line.StippleFactor), NO_EXTRA },
867   { GL_LINE_WIDTH_GRANULARITY, CONTEXT_FLOAT(Const.LineWidthGranularity), NO_EXTRA },
868   { GL_LIST_BASE, CONTEXT_INT(List.ListBase), NO_EXTRA },
869   { GL_LIST_INDEX, LOC_CUSTOM, TYPE_INT, 0, NO_EXTRA },
870   { GL_LIST_MODE, LOC_CUSTOM, TYPE_ENUM, 0, NO_EXTRA },
871   { GL_INDEX_LOGIC_OP, CONTEXT_BOOL(Color.IndexLogicOpEnabled), NO_EXTRA },
872   { GL_MAP1_COLOR_4, CONTEXT_BOOL(Eval.Map1Color4), NO_EXTRA },
873   { GL_MAP1_GRID_DOMAIN, CONTEXT_FLOAT2(Eval.MapGrid1u1), NO_EXTRA },
874   { GL_MAP1_GRID_SEGMENTS, CONTEXT_INT(Eval.MapGrid1un), NO_EXTRA },
875   { GL_MAP1_INDEX, CONTEXT_BOOL(Eval.Map1Index), NO_EXTRA },
876   { GL_MAP1_NORMAL, CONTEXT_BOOL(Eval.Map1Normal), NO_EXTRA },
877   { GL_MAP1_TEXTURE_COORD_1, CONTEXT_BOOL(Eval.Map1TextureCoord1), NO_EXTRA },
878   { GL_MAP1_TEXTURE_COORD_2, CONTEXT_BOOL(Eval.Map1TextureCoord2), NO_EXTRA },
879   { GL_MAP1_TEXTURE_COORD_3, CONTEXT_BOOL(Eval.Map1TextureCoord3), NO_EXTRA },
880   { GL_MAP1_TEXTURE_COORD_4, CONTEXT_BOOL(Eval.Map1TextureCoord4), NO_EXTRA },
881   { GL_MAP1_VERTEX_3, CONTEXT_BOOL(Eval.Map1Vertex3), NO_EXTRA },
882   { GL_MAP1_VERTEX_4, CONTEXT_BOOL(Eval.Map1Vertex4), NO_EXTRA },
883   { GL_MAP2_COLOR_4, CONTEXT_BOOL(Eval.Map2Color4), NO_EXTRA },
884   { GL_MAP2_GRID_DOMAIN, LOC_CUSTOM, TYPE_FLOAT_4, 0, NO_EXTRA },
885   { GL_MAP2_GRID_SEGMENTS, CONTEXT_INT2(Eval.MapGrid2un), NO_EXTRA },
886   { GL_MAP2_INDEX, CONTEXT_BOOL(Eval.Map2Index), NO_EXTRA },
887   { GL_MAP2_NORMAL, CONTEXT_BOOL(Eval.Map2Normal), NO_EXTRA },
888   { GL_MAP2_TEXTURE_COORD_1, CONTEXT_BOOL(Eval.Map2TextureCoord1), NO_EXTRA },
889   { GL_MAP2_TEXTURE_COORD_2, CONTEXT_BOOL(Eval.Map2TextureCoord2), NO_EXTRA },
890   { GL_MAP2_TEXTURE_COORD_3, CONTEXT_BOOL(Eval.Map2TextureCoord3), NO_EXTRA },
891   { GL_MAP2_TEXTURE_COORD_4, CONTEXT_BOOL(Eval.Map2TextureCoord4), NO_EXTRA },
892   { GL_MAP2_VERTEX_3, CONTEXT_BOOL(Eval.Map2Vertex3), NO_EXTRA },
893   { GL_MAP2_VERTEX_4, CONTEXT_BOOL(Eval.Map2Vertex4), NO_EXTRA },
894   { GL_MAP_COLOR, CONTEXT_BOOL(Pixel.MapColorFlag), NO_EXTRA },
895   { GL_MAP_STENCIL, CONTEXT_BOOL(Pixel.MapStencilFlag), NO_EXTRA },
896   { GL_MAX_ATTRIB_STACK_DEPTH, CONST(MAX_ATTRIB_STACK_DEPTH), NO_EXTRA },
897   { GL_MAX_CLIENT_ATTRIB_STACK_DEPTH, CONST(MAX_CLIENT_ATTRIB_STACK_DEPTH), NO_EXTRA },
898
899   { GL_MAX_EVAL_ORDER, CONST(MAX_EVAL_ORDER), NO_EXTRA },
900   { GL_MAX_LIST_NESTING, CONST(MAX_LIST_NESTING), NO_EXTRA },
901   { GL_MAX_NAME_STACK_DEPTH, CONST(MAX_NAME_STACK_DEPTH), NO_EXTRA },
902   { GL_MAX_PIXEL_MAP_TABLE, CONST(MAX_PIXEL_MAP_TABLE), NO_EXTRA },
903   { GL_NAME_STACK_DEPTH, CONTEXT_INT(Select.NameStackDepth), NO_EXTRA },
904   { GL_PACK_LSB_FIRST, CONTEXT_BOOL(Pack.LsbFirst), NO_EXTRA },
905   { GL_PACK_SWAP_BYTES, CONTEXT_BOOL(Pack.SwapBytes), NO_EXTRA },
906   { GL_PACK_INVERT_MESA, CONTEXT_BOOL(Pack.Invert), NO_EXTRA },
907   { GL_PIXEL_MAP_A_TO_A_SIZE, CONTEXT_INT(PixelMaps.AtoA.Size), NO_EXTRA },
908   { GL_PIXEL_MAP_B_TO_B_SIZE, CONTEXT_INT(PixelMaps.BtoB.Size), NO_EXTRA },
909   { GL_PIXEL_MAP_G_TO_G_SIZE, CONTEXT_INT(PixelMaps.GtoG.Size), NO_EXTRA },
910   { GL_PIXEL_MAP_I_TO_A_SIZE, CONTEXT_INT(PixelMaps.ItoA.Size), NO_EXTRA },
911   { GL_PIXEL_MAP_I_TO_B_SIZE, CONTEXT_INT(PixelMaps.ItoB.Size), NO_EXTRA },
912   { GL_PIXEL_MAP_I_TO_G_SIZE, CONTEXT_INT(PixelMaps.ItoG.Size), NO_EXTRA },
913   { GL_PIXEL_MAP_I_TO_I_SIZE, CONTEXT_INT(PixelMaps.ItoI.Size), NO_EXTRA },
914   { GL_PIXEL_MAP_I_TO_R_SIZE, CONTEXT_INT(PixelMaps.ItoR.Size), NO_EXTRA },
915   { GL_PIXEL_MAP_R_TO_R_SIZE, CONTEXT_INT(PixelMaps.RtoR.Size), NO_EXTRA },
916   { GL_PIXEL_MAP_S_TO_S_SIZE, CONTEXT_INT(PixelMaps.StoS.Size), NO_EXTRA },
917   { GL_POINT_SIZE_GRANULARITY, CONTEXT_FLOAT(Const.PointSizeGranularity), NO_EXTRA },
918   { GL_POLYGON_MODE, CONTEXT_ENUM2(Polygon.FrontMode), NO_EXTRA },
919   { GL_POLYGON_OFFSET_BIAS_EXT, CONTEXT_FLOAT(Polygon.OffsetUnits), NO_EXTRA },
920   { GL_POLYGON_OFFSET_POINT, CONTEXT_BOOL(Polygon.OffsetPoint), NO_EXTRA },
921   { GL_POLYGON_OFFSET_LINE, CONTEXT_BOOL(Polygon.OffsetLine), NO_EXTRA },
922   { GL_POLYGON_SMOOTH, CONTEXT_BOOL(Polygon.SmoothFlag), NO_EXTRA },
923   { GL_POLYGON_SMOOTH_HINT, CONTEXT_ENUM(Hint.PolygonSmooth), NO_EXTRA },
924   { GL_POLYGON_STIPPLE, CONTEXT_BOOL(Polygon.StippleFlag), NO_EXTRA },
925   { GL_RED_BIAS, CONTEXT_FLOAT(Pixel.RedBias), NO_EXTRA },
926   { GL_RED_SCALE, CONTEXT_FLOAT(Pixel.RedScale), NO_EXTRA },
927   { GL_RENDER_MODE, CONTEXT_ENUM(RenderMode), NO_EXTRA },
928   { GL_RGBA_MODE, CONST(1), NO_EXTRA },
929   { GL_SELECTION_BUFFER_SIZE, CONTEXT_INT(Select.BufferSize), NO_EXTRA },
930
931   { GL_STEREO, BUFFER_INT(Visual.stereoMode), NO_EXTRA },
932
933   { GL_TEXTURE_1D, LOC_CUSTOM, TYPE_BOOLEAN, NO_OFFSET, NO_EXTRA },
934   { GL_TEXTURE_3D, LOC_CUSTOM, TYPE_BOOLEAN, NO_OFFSET, NO_EXTRA },
935   { GL_TEXTURE_1D_ARRAY_EXT, LOC_CUSTOM, TYPE_BOOLEAN, NO_OFFSET, NO_EXTRA },
936   { GL_TEXTURE_2D_ARRAY_EXT, LOC_CUSTOM, TYPE_BOOLEAN, NO_OFFSET, NO_EXTRA },
937
938   { GL_TEXTURE_BINDING_1D, LOC_CUSTOM, TYPE_INT, TEXTURE_1D_INDEX, NO_EXTRA },
939   { GL_TEXTURE_BINDING_1D_ARRAY, LOC_CUSTOM, TYPE_INT,
940     TEXTURE_1D_ARRAY_INDEX, extra_MESA_texture_array },
941   { GL_TEXTURE_BINDING_2D_ARRAY, LOC_CUSTOM, TYPE_INT,
942     TEXTURE_1D_ARRAY_INDEX, extra_MESA_texture_array },
943   { GL_MAX_ARRAY_TEXTURE_LAYERS_EXT,
944     CONTEXT_INT(Const.MaxArrayTextureLayers), extra_MESA_texture_array },
945
946   { GL_TEXTURE_GEN_S, LOC_TEXUNIT, TYPE_BIT_0,
947     offsetof(struct gl_texture_unit, TexGenEnabled), NO_EXTRA },
948   { GL_TEXTURE_GEN_T, LOC_TEXUNIT, TYPE_BIT_1,
949     offsetof(struct gl_texture_unit, TexGenEnabled), NO_EXTRA },
950   { GL_TEXTURE_GEN_R, LOC_TEXUNIT, TYPE_BIT_2,
951     offsetof(struct gl_texture_unit, TexGenEnabled), NO_EXTRA },
952   { GL_TEXTURE_GEN_Q, LOC_TEXUNIT, TYPE_BIT_3,
953     offsetof(struct gl_texture_unit, TexGenEnabled), NO_EXTRA },
954   { GL_UNPACK_LSB_FIRST, CONTEXT_BOOL(Unpack.LsbFirst), NO_EXTRA },
955   { GL_UNPACK_SWAP_BYTES, CONTEXT_BOOL(Unpack.SwapBytes), NO_EXTRA },
956   { GL_ZOOM_X, CONTEXT_FLOAT(Pixel.ZoomX), NO_EXTRA },
957   { GL_ZOOM_Y, CONTEXT_FLOAT(Pixel.ZoomY), NO_EXTRA },
958
959   /* Vertex arrays */
960   { GL_VERTEX_ARRAY_COUNT_EXT, CONST(0), NO_EXTRA },
961   { GL_NORMAL_ARRAY_COUNT_EXT, CONST(0), NO_EXTRA },
962   { GL_COLOR_ARRAY_COUNT_EXT, CONST(0), NO_EXTRA },
963   { GL_INDEX_ARRAY, ARRAY_BOOL(VertexAttrib[VERT_ATTRIB_COLOR_INDEX].Enabled), NO_EXTRA },
964   { GL_INDEX_ARRAY_TYPE, ARRAY_ENUM(VertexAttrib[VERT_ATTRIB_COLOR_INDEX].Type), NO_EXTRA },
965   { GL_INDEX_ARRAY_STRIDE, ARRAY_INT(VertexAttrib[VERT_ATTRIB_COLOR_INDEX].Stride), NO_EXTRA },
966   { GL_INDEX_ARRAY_COUNT_EXT, CONST(0), NO_EXTRA },
967   { GL_TEXTURE_COORD_ARRAY_COUNT_EXT, CONST(0), NO_EXTRA },
968   { GL_EDGE_FLAG_ARRAY, ARRAY_BOOL(VertexAttrib[VERT_ATTRIB_EDGEFLAG].Enabled), NO_EXTRA },
969   { GL_EDGE_FLAG_ARRAY_STRIDE, ARRAY_INT(VertexAttrib[VERT_ATTRIB_EDGEFLAG].Stride), NO_EXTRA },
970   { GL_EDGE_FLAG_ARRAY_COUNT_EXT, CONST(0), NO_EXTRA },
971
972   /* GL_ARB_texture_compression */
973   { GL_TEXTURE_COMPRESSION_HINT_ARB, CONTEXT_INT(Hint.TextureCompression), NO_EXTRA },
974
975   /* GL_EXT_compiled_vertex_array */
976   { GL_ARRAY_ELEMENT_LOCK_FIRST_EXT, CONTEXT_INT(Array.LockFirst),
977     extra_EXT_compiled_vertex_array },
978   { GL_ARRAY_ELEMENT_LOCK_COUNT_EXT, CONTEXT_INT(Array.LockCount),
979     extra_EXT_compiled_vertex_array },
980
981   /* GL_ARB_transpose_matrix */
982   { GL_TRANSPOSE_MODELVIEW_MATRIX_ARB,
983     CONTEXT_MATRIX_T(ModelviewMatrixStack), NO_EXTRA },
984   { GL_TRANSPOSE_PROJECTION_MATRIX_ARB,
985     CONTEXT_MATRIX_T(ProjectionMatrixStack.Top), NO_EXTRA },
986   { GL_TRANSPOSE_TEXTURE_MATRIX_ARB, CONTEXT_MATRIX_T(TextureMatrixStack), NO_EXTRA },
987
988   /* GL_EXT_secondary_color */
989   { GL_COLOR_SUM_EXT, CONTEXT_BOOL(Fog.ColorSumEnabled),
990     extra_EXT_secondary_color_ARB_vertex_program },
991   { GL_CURRENT_SECONDARY_COLOR_EXT,
992     CONTEXT_FIELD(Current.Attrib[VERT_ATTRIB_COLOR1][0], TYPE_FLOATN_4),
993     extra_EXT_secondary_color_flush_current },
994   { GL_SECONDARY_COLOR_ARRAY_EXT, ARRAY_BOOL(VertexAttrib[VERT_ATTRIB_COLOR1].Enabled),
995     extra_EXT_secondary_color },
996   { GL_SECONDARY_COLOR_ARRAY_TYPE_EXT, ARRAY_ENUM(VertexAttrib[VERT_ATTRIB_COLOR1].Type),
997     extra_EXT_secondary_color },
998   { GL_SECONDARY_COLOR_ARRAY_STRIDE_EXT, ARRAY_INT(VertexAttrib[VERT_ATTRIB_COLOR1].Stride),
999     extra_EXT_secondary_color },
1000   { GL_SECONDARY_COLOR_ARRAY_SIZE_EXT, ARRAY_INT(VertexAttrib[VERT_ATTRIB_COLOR1].Size),
1001     extra_EXT_secondary_color },
1002
1003   /* GL_EXT_fog_coord */
1004   { GL_CURRENT_FOG_COORDINATE_EXT,
1005     CONTEXT_FLOAT(Current.Attrib[VERT_ATTRIB_FOG][0]),
1006     extra_EXT_fog_coord_flush_current },
1007   { GL_FOG_COORDINATE_ARRAY_EXT, ARRAY_BOOL(VertexAttrib[VERT_ATTRIB_FOG].Enabled),
1008     extra_EXT_fog_coord },
1009   { GL_FOG_COORDINATE_ARRAY_TYPE_EXT, ARRAY_ENUM(VertexAttrib[VERT_ATTRIB_FOG].Type),
1010     extra_EXT_fog_coord },
1011   { GL_FOG_COORDINATE_ARRAY_STRIDE_EXT, ARRAY_INT(VertexAttrib[VERT_ATTRIB_FOG].Stride),
1012     extra_EXT_fog_coord },
1013   { GL_FOG_COORDINATE_SOURCE_EXT, CONTEXT_ENUM(Fog.FogCoordinateSource),
1014     extra_EXT_fog_coord },
1015
1016   /* GL_NV_fog_distance */
1017   { GL_FOG_DISTANCE_MODE_NV, CONTEXT_ENUM(Fog.FogDistanceMode),
1018     extra_NV_fog_distance },
1019
1020   /* GL_IBM_rasterpos_clip */
1021   { GL_RASTER_POSITION_UNCLIPPED_IBM,
1022     CONTEXT_BOOL(Transform.RasterPositionUnclipped),
1023     extra_IBM_rasterpos_clip },
1024
1025   /* GL_NV_point_sprite */
1026   { GL_POINT_SPRITE_R_MODE_NV,
1027     CONTEXT_ENUM(Point.SpriteRMode), extra_NV_point_sprite },
1028   { GL_POINT_SPRITE_COORD_ORIGIN, CONTEXT_ENUM(Point.SpriteOrigin),
1029     extra_NV_point_sprite_ARB_point_sprite },
1030
1031   /* GL_NV_vertex_program */
1032   { GL_VERTEX_PROGRAM_BINDING_NV, LOC_CUSTOM, TYPE_INT, 0,
1033     extra_NV_vertex_program },
1034   { GL_VERTEX_ATTRIB_ARRAY0_NV, ARRAY_BOOL(VertexAttrib[VERT_ATTRIB_GENERIC(0)].Enabled),
1035     extra_NV_vertex_program },
1036   { GL_VERTEX_ATTRIB_ARRAY1_NV, ARRAY_BOOL(VertexAttrib[VERT_ATTRIB_GENERIC(1)].Enabled),
1037     extra_NV_vertex_program },
1038   { GL_VERTEX_ATTRIB_ARRAY2_NV, ARRAY_BOOL(VertexAttrib[VERT_ATTRIB_GENERIC(2)].Enabled),
1039     extra_NV_vertex_program },
1040   { GL_VERTEX_ATTRIB_ARRAY3_NV, ARRAY_BOOL(VertexAttrib[VERT_ATTRIB_GENERIC(3)].Enabled),
1041     extra_NV_vertex_program },
1042   { GL_VERTEX_ATTRIB_ARRAY4_NV, ARRAY_BOOL(VertexAttrib[VERT_ATTRIB_GENERIC(4)].Enabled),
1043     extra_NV_vertex_program },
1044   { GL_VERTEX_ATTRIB_ARRAY5_NV, ARRAY_BOOL(VertexAttrib[VERT_ATTRIB_GENERIC(5)].Enabled),
1045     extra_NV_vertex_program },
1046   { GL_VERTEX_ATTRIB_ARRAY6_NV, ARRAY_BOOL(VertexAttrib[VERT_ATTRIB_GENERIC(6)].Enabled),
1047     extra_NV_vertex_program },
1048   { GL_VERTEX_ATTRIB_ARRAY7_NV, ARRAY_BOOL(VertexAttrib[VERT_ATTRIB_GENERIC(7)].Enabled),
1049     extra_NV_vertex_program },
1050   { GL_VERTEX_ATTRIB_ARRAY8_NV, ARRAY_BOOL(VertexAttrib[VERT_ATTRIB_GENERIC(8)].Enabled),
1051     extra_NV_vertex_program },
1052   { GL_VERTEX_ATTRIB_ARRAY9_NV, ARRAY_BOOL(VertexAttrib[VERT_ATTRIB_GENERIC(9)].Enabled),
1053     extra_NV_vertex_program },
1054   { GL_VERTEX_ATTRIB_ARRAY10_NV, ARRAY_BOOL(VertexAttrib[VERT_ATTRIB_GENERIC(10)].Enabled),
1055     extra_NV_vertex_program },
1056   { GL_VERTEX_ATTRIB_ARRAY11_NV, ARRAY_BOOL(VertexAttrib[VERT_ATTRIB_GENERIC(11)].Enabled),
1057     extra_NV_vertex_program },
1058   { GL_VERTEX_ATTRIB_ARRAY12_NV, ARRAY_BOOL(VertexAttrib[VERT_ATTRIB_GENERIC(12)].Enabled),
1059     extra_NV_vertex_program },
1060   { GL_VERTEX_ATTRIB_ARRAY13_NV, ARRAY_BOOL(VertexAttrib[VERT_ATTRIB_GENERIC(13)].Enabled),
1061     extra_NV_vertex_program },
1062   { GL_VERTEX_ATTRIB_ARRAY14_NV, ARRAY_BOOL(VertexAttrib[VERT_ATTRIB_GENERIC(14)].Enabled),
1063     extra_NV_vertex_program },
1064   { GL_VERTEX_ATTRIB_ARRAY15_NV, ARRAY_BOOL(VertexAttrib[VERT_ATTRIB_GENERIC(15)].Enabled),
1065     extra_NV_vertex_program },
1066   { GL_MAP1_VERTEX_ATTRIB0_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[0]),
1067     extra_NV_vertex_program },
1068   { GL_MAP1_VERTEX_ATTRIB1_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[1]),
1069     extra_NV_vertex_program },
1070   { GL_MAP1_VERTEX_ATTRIB2_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[2]),
1071     extra_NV_vertex_program },
1072   { GL_MAP1_VERTEX_ATTRIB3_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[3]),
1073     extra_NV_vertex_program },
1074   { GL_MAP1_VERTEX_ATTRIB4_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[4]),
1075     extra_NV_vertex_program },
1076   { GL_MAP1_VERTEX_ATTRIB5_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[5]),
1077     extra_NV_vertex_program },
1078   { GL_MAP1_VERTEX_ATTRIB6_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[6]),
1079     extra_NV_vertex_program },
1080   { GL_MAP1_VERTEX_ATTRIB7_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[7]),
1081     extra_NV_vertex_program },
1082   { GL_MAP1_VERTEX_ATTRIB8_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[8]),
1083     extra_NV_vertex_program },
1084   { GL_MAP1_VERTEX_ATTRIB9_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[9]),
1085     extra_NV_vertex_program },
1086   { GL_MAP1_VERTEX_ATTRIB10_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[10]),
1087     extra_NV_vertex_program },
1088   { GL_MAP1_VERTEX_ATTRIB11_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[11]),
1089     extra_NV_vertex_program },
1090   { GL_MAP1_VERTEX_ATTRIB12_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[12]),
1091     extra_NV_vertex_program },
1092   { GL_MAP1_VERTEX_ATTRIB13_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[13]),
1093     extra_NV_vertex_program },
1094   { GL_MAP1_VERTEX_ATTRIB14_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[14]),
1095     extra_NV_vertex_program },
1096   { GL_MAP1_VERTEX_ATTRIB15_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[15]),
1097     extra_NV_vertex_program },
1098
1099   /* GL_NV_fragment_program */
1100   { GL_FRAGMENT_PROGRAM_NV, CONTEXT_BOOL(FragmentProgram.Enabled),
1101     extra_NV_fragment_program },
1102   { GL_FRAGMENT_PROGRAM_BINDING_NV, LOC_CUSTOM, TYPE_INT, 0,
1103     extra_NV_fragment_program },
1104   { GL_MAX_FRAGMENT_PROGRAM_LOCAL_PARAMETERS_NV,
1105     CONST(MAX_NV_FRAGMENT_PROGRAM_PARAMS),
1106     extra_NV_fragment_program },
1107
1108   /* GL_NV_texture_rectangle */
1109   { GL_TEXTURE_RECTANGLE_NV,
1110     LOC_CUSTOM, TYPE_BOOLEAN, 0, extra_NV_texture_rectangle },
1111   { GL_TEXTURE_BINDING_RECTANGLE_NV,
1112     LOC_CUSTOM, TYPE_INT, TEXTURE_RECT_INDEX, extra_NV_texture_rectangle },
1113   { GL_MAX_RECTANGLE_TEXTURE_SIZE_NV,
1114     CONTEXT_INT(Const.MaxTextureRectSize), extra_NV_texture_rectangle },
1115
1116   /* GL_EXT_stencil_two_side */
1117   { GL_STENCIL_TEST_TWO_SIDE_EXT, CONTEXT_BOOL(Stencil.TestTwoSide),
1118	 extra_EXT_stencil_two_side },
1119   { GL_ACTIVE_STENCIL_FACE_EXT, LOC_CUSTOM, TYPE_ENUM, NO_OFFSET, NO_EXTRA },
1120
1121   /* GL_NV_light_max_exponent */
1122   { GL_MAX_SHININESS_NV, CONTEXT_FLOAT(Const.MaxShininess),
1123     extra_NV_light_max_exponent },
1124   { GL_MAX_SPOT_EXPONENT_NV, CONTEXT_FLOAT(Const.MaxSpotExponent),
1125     extra_NV_light_max_exponent },
1126
1127   /* GL_NV_primitive_restart */
1128   { GL_PRIMITIVE_RESTART_NV, CONTEXT_BOOL(Array.PrimitiveRestart),
1129     extra_NV_primitive_restart },
1130   { GL_PRIMITIVE_RESTART_INDEX_NV, CONTEXT_INT(Array.RestartIndex),
1131     extra_NV_primitive_restart },
1132
1133   /* GL_ARB_vertex_buffer_object */
1134   { GL_INDEX_ARRAY_BUFFER_BINDING_ARB, LOC_CUSTOM, TYPE_INT,
1135     offsetof(struct gl_array_object, VertexAttrib[VERT_ATTRIB_COLOR_INDEX].BufferObj), NO_EXTRA },
1136   { GL_EDGE_FLAG_ARRAY_BUFFER_BINDING_ARB, LOC_CUSTOM, TYPE_INT,
1137     offsetof(struct gl_array_object, VertexAttrib[VERT_ATTRIB_EDGEFLAG].BufferObj), NO_EXTRA },
1138   { GL_SECONDARY_COLOR_ARRAY_BUFFER_BINDING_ARB, LOC_CUSTOM, TYPE_INT,
1139     offsetof(struct gl_array_object, VertexAttrib[VERT_ATTRIB_COLOR1].BufferObj), NO_EXTRA },
1140   { GL_FOG_COORDINATE_ARRAY_BUFFER_BINDING_ARB, LOC_CUSTOM, TYPE_INT,
1141     offsetof(struct gl_array_object, VertexAttrib[VERT_ATTRIB_FOG].BufferObj), NO_EXTRA },
1142
1143   /* GL_EXT_pixel_buffer_object */
1144   { GL_PIXEL_PACK_BUFFER_BINDING_EXT, LOC_CUSTOM, TYPE_INT, 0,
1145     extra_EXT_pixel_buffer_object },
1146   { GL_PIXEL_UNPACK_BUFFER_BINDING_EXT, LOC_CUSTOM, TYPE_INT, 0,
1147     extra_EXT_pixel_buffer_object },
1148
1149   /* GL_ARB_vertex_program */
1150   { GL_VERTEX_PROGRAM_ARB, /* == GL_VERTEX_PROGRAM_NV */
1151     CONTEXT_BOOL(VertexProgram.Enabled),
1152     extra_ARB_vertex_program_NV_vertex_program },
1153   { GL_VERTEX_PROGRAM_POINT_SIZE_ARB, /* == GL_VERTEX_PROGRAM_POINT_SIZE_NV*/
1154     CONTEXT_BOOL(VertexProgram.PointSizeEnabled),
1155     extra_ARB_vertex_program_NV_vertex_program },
1156   { GL_VERTEX_PROGRAM_TWO_SIDE_ARB, /* == GL_VERTEX_PROGRAM_TWO_SIDE_NV */
1157     CONTEXT_BOOL(VertexProgram.TwoSideEnabled),
1158     extra_ARB_vertex_program_NV_vertex_program },
1159   { GL_MAX_PROGRAM_MATRIX_STACK_DEPTH_ARB, /* == GL_MAX_TRACK_MATRIX_STACK_DEPTH_NV */
1160     CONTEXT_INT(Const.MaxProgramMatrixStackDepth),
1161     extra_ARB_vertex_program_ARB_fragment_program_NV_vertex_program },
1162   { GL_MAX_PROGRAM_MATRICES_ARB, /* == GL_MAX_TRACK_MATRICES_NV */
1163     CONTEXT_INT(Const.MaxProgramMatrices),
1164     extra_ARB_vertex_program_ARB_fragment_program_NV_vertex_program },
1165   { GL_CURRENT_MATRIX_STACK_DEPTH_ARB, /* == GL_CURRENT_MATRIX_STACK_DEPTH_NV */
1166     LOC_CUSTOM, TYPE_INT, 0,
1167     extra_ARB_vertex_program_ARB_fragment_program_NV_vertex_program },
1168
1169   { GL_CURRENT_MATRIX_ARB, /* == GL_CURRENT_MATRIX_NV */
1170     LOC_CUSTOM, TYPE_MATRIX, 0,
1171     extra_ARB_vertex_program_ARB_fragment_program_NV_vertex_program },
1172   { GL_TRANSPOSE_CURRENT_MATRIX_ARB, /* == GL_CURRENT_MATRIX_NV */
1173     LOC_CUSTOM, TYPE_MATRIX, 0,
1174     extra_ARB_vertex_program_ARB_fragment_program },
1175
1176   { GL_PROGRAM_ERROR_POSITION_ARB, /* == GL_PROGRAM_ERROR_POSITION_NV */
1177     CONTEXT_INT(Program.ErrorPos),
1178     extra_NV_vertex_program_ARB_vertex_program_ARB_fragment_program_NV_vertex_program },
1179
1180   /* GL_ARB_fragment_program */
1181   { GL_FRAGMENT_PROGRAM_ARB, CONTEXT_BOOL(FragmentProgram.Enabled),
1182     extra_ARB_fragment_program },
1183
1184   /* GL_EXT_depth_bounds_test */
1185   { GL_DEPTH_BOUNDS_TEST_EXT, CONTEXT_BOOL(Depth.BoundsTest),
1186     extra_EXT_depth_bounds_test },
1187   { GL_DEPTH_BOUNDS_EXT, CONTEXT_FLOAT2(Depth.BoundsMin),
1188     extra_EXT_depth_bounds_test },
1189
1190   /* GL_ARB_depth_clamp*/
1191   { GL_DEPTH_CLAMP, CONTEXT_BOOL(Transform.DepthClamp),
1192     extra_ARB_depth_clamp },
1193
1194   /* GL_ATI_fragment_shader */
1195   { GL_NUM_FRAGMENT_REGISTERS_ATI, CONST(6), extra_ATI_fragment_shader },
1196   { GL_NUM_FRAGMENT_CONSTANTS_ATI, CONST(8), extra_ATI_fragment_shader },
1197   { GL_NUM_PASSES_ATI, CONST(2), extra_ATI_fragment_shader },
1198   { GL_NUM_INSTRUCTIONS_PER_PASS_ATI, CONST(8), extra_ATI_fragment_shader },
1199   { GL_NUM_INSTRUCTIONS_TOTAL_ATI, CONST(16), extra_ATI_fragment_shader },
1200   { GL_COLOR_ALPHA_PAIRING_ATI, CONST(GL_TRUE), extra_ATI_fragment_shader },
1201   { GL_NUM_LOOPBACK_COMPONENTS_ATI, CONST(3), extra_ATI_fragment_shader },
1202   { GL_NUM_INPUT_INTERPOLATOR_COMPONENTS_ATI,
1203     CONST(3), extra_ATI_fragment_shader },
1204
1205   /* GL_EXT_framebuffer_blit
1206    * NOTE: GL_DRAW_FRAMEBUFFER_BINDING_EXT == GL_FRAMEBUFFER_BINDING_EXT */
1207   { GL_READ_FRAMEBUFFER_BINDING_EXT, LOC_CUSTOM, TYPE_INT, 0,
1208     extra_EXT_framebuffer_blit },
1209
1210   /* GL_EXT_provoking_vertex */
1211   { GL_PROVOKING_VERTEX_EXT,
1212     CONTEXT_ENUM(Light.ProvokingVertex), extra_EXT_provoking_vertex },
1213   { GL_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION_EXT,
1214     CONTEXT_BOOL(Const.QuadsFollowProvokingVertexConvention),
1215     extra_EXT_provoking_vertex },
1216
1217   /* GL_ARB_framebuffer_object */
1218   { GL_MAX_SAMPLES, CONTEXT_INT(Const.MaxSamples),
1219     extra_ARB_framebuffer_object_EXT_framebuffer_multisample },
1220
1221   /* GL_ARB_seamless_cube_map */
1222   { GL_TEXTURE_CUBE_MAP_SEAMLESS,
1223     CONTEXT_BOOL(Texture.CubeMapSeamless), extra_ARB_seamless_cube_map },
1224
1225   /* GL_ARB_sync */
1226   { GL_MAX_SERVER_WAIT_TIMEOUT,
1227     CONTEXT_INT64(Const.MaxServerWaitTimeout), extra_ARB_sync },
1228
1229   /* GL_EXT_texture_integer */
1230   { GL_RGBA_INTEGER_MODE_EXT, BUFFER_BOOL(_IntegerColor),
1231     extra_EXT_texture_integer },
1232
1233   /* GL_EXT_transform_feedback */
1234   { GL_TRANSFORM_FEEDBACK_BUFFER_BINDING, LOC_CUSTOM, TYPE_INT, 0,
1235     extra_EXT_transform_feedback },
1236   { GL_RASTERIZER_DISCARD, CONTEXT_BOOL(RasterDiscard),
1237     extra_EXT_transform_feedback },
1238   { GL_MAX_TRANSFORM_FEEDBACK_INTERLEAVED_COMPONENTS,
1239     CONTEXT_INT(Const.MaxTransformFeedbackInterleavedComponents),
1240     extra_EXT_transform_feedback },
1241   { GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_ATTRIBS,
1242     CONTEXT_INT(Const.MaxTransformFeedbackBuffers),
1243     extra_EXT_transform_feedback },
1244   { GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_COMPONENTS,
1245     CONTEXT_INT(Const.MaxTransformFeedbackSeparateComponents),
1246     extra_EXT_transform_feedback },
1247
1248   /* GL_ARB_transform_feedback2 */
1249   { GL_TRANSFORM_FEEDBACK_BUFFER_PAUSED, LOC_CUSTOM, TYPE_BOOLEAN, 0,
1250     extra_ARB_transform_feedback2 },
1251   { GL_TRANSFORM_FEEDBACK_BUFFER_ACTIVE, LOC_CUSTOM, TYPE_BOOLEAN, 0,
1252     extra_ARB_transform_feedback2 },
1253   { GL_TRANSFORM_FEEDBACK_BINDING, LOC_CUSTOM, TYPE_INT, 0,
1254     extra_ARB_transform_feedback2 },
1255
1256   /* GL_ARB_transform_feedback3 */
1257   { GL_MAX_TRANSFORM_FEEDBACK_BUFFERS,
1258     CONTEXT_INT(Const.MaxTransformFeedbackBuffers),
1259     extra_ARB_transform_feedback3 },
1260   { GL_MAX_VERTEX_STREAMS,
1261     CONTEXT_INT(Const.MaxVertexStreams),
1262     extra_ARB_transform_feedback3 },
1263
1264   /* GL_ARB_geometry_shader4 */
1265   { GL_MAX_GEOMETRY_TEXTURE_IMAGE_UNITS_ARB,
1266     CONTEXT_INT(Const.MaxGeometryTextureImageUnits),
1267     extra_ARB_geometry_shader4 },
1268   { GL_MAX_GEOMETRY_OUTPUT_VERTICES_ARB,
1269     CONTEXT_INT(Const.MaxGeometryOutputVertices),
1270     extra_ARB_geometry_shader4 },
1271   { GL_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS_ARB,
1272     CONTEXT_INT(Const.MaxGeometryTotalOutputComponents),
1273     extra_ARB_geometry_shader4 },
1274   { GL_MAX_GEOMETRY_UNIFORM_COMPONENTS_ARB,
1275     CONTEXT_INT(Const.GeometryProgram.MaxUniformComponents),
1276     extra_ARB_geometry_shader4 },
1277   { GL_MAX_GEOMETRY_VARYING_COMPONENTS_ARB,
1278     CONTEXT_INT(Const.MaxGeometryVaryingComponents),
1279     extra_ARB_geometry_shader4 },
1280   { GL_MAX_VERTEX_VARYING_COMPONENTS_ARB,
1281     CONTEXT_INT(Const.MaxVertexVaryingComponents),
1282     extra_ARB_geometry_shader4 },
1283
1284   /* GL_ARB_color_buffer_float */
1285   { GL_RGBA_FLOAT_MODE_ARB, BUFFER_FIELD(Visual.floatMode, TYPE_BOOLEAN), 0 },
1286
1287   /* GL_EXT_gpu_shader4 / GLSL 1.30 */
1288   { GL_MIN_PROGRAM_TEXEL_OFFSET,
1289     CONTEXT_INT(Const.MinProgramTexelOffset),
1290     extra_GLSL_130 },
1291   { GL_MAX_PROGRAM_TEXEL_OFFSET,
1292     CONTEXT_INT(Const.MaxProgramTexelOffset),
1293     extra_GLSL_130 },
1294
1295   /* GL_ARB_texture_buffer_object */
1296   { GL_MAX_TEXTURE_BUFFER_SIZE_ARB, CONTEXT_INT(Const.MaxTextureBufferSize),
1297     extra_texture_buffer_object },
1298   { GL_TEXTURE_BINDING_BUFFER_ARB, LOC_CUSTOM, TYPE_INT, 0,
1299     extra_texture_buffer_object },
1300   { GL_TEXTURE_BUFFER_DATA_STORE_BINDING_ARB, LOC_CUSTOM, TYPE_INT,
1301     TEXTURE_BUFFER_INDEX, extra_texture_buffer_object },
1302   { GL_TEXTURE_BUFFER_FORMAT_ARB, LOC_CUSTOM, TYPE_INT, 0,
1303     extra_texture_buffer_object },
1304   { GL_TEXTURE_BUFFER_ARB, LOC_CUSTOM, TYPE_INT, 0,
1305     extra_texture_buffer_object },
1306
1307   /* GL_ARB_sampler_objects / GL 3.3 */
1308   { GL_SAMPLER_BINDING,
1309     LOC_CUSTOM, TYPE_INT, GL_SAMPLER_BINDING, NO_EXTRA },
1310
1311   /* GL 3.0 */
1312   { GL_NUM_EXTENSIONS, LOC_CUSTOM, TYPE_INT, 0, extra_version_30 },
1313   { GL_MAJOR_VERSION, LOC_CUSTOM, TYPE_INT, 0, extra_version_30 },
1314   { GL_MINOR_VERSION, LOC_CUSTOM, TYPE_INT, 0, extra_version_30  },
1315   { GL_CONTEXT_FLAGS, CONTEXT_INT(Const.ContextFlags), extra_version_30  },
1316
1317   /* GL3.0 / GL_EXT_framebuffer_sRGB */
1318   { GL_FRAMEBUFFER_SRGB_EXT, CONTEXT_BOOL(Color.sRGBEnabled), extra_EXT_framebuffer_sRGB },
1319   { GL_FRAMEBUFFER_SRGB_CAPABLE_EXT, BUFFER_INT(Visual.sRGBCapable), extra_EXT_framebuffer_sRGB },
1320
1321   /* GL 3.1 */
1322   /* NOTE: different enum values for GL_PRIMITIVE_RESTART_NV
1323    * vs. GL_PRIMITIVE_RESTART!
1324    */
1325   { GL_PRIMITIVE_RESTART, CONTEXT_BOOL(Array.PrimitiveRestart),
1326     extra_version_31 },
1327   { GL_PRIMITIVE_RESTART_INDEX, CONTEXT_INT(Array.RestartIndex),
1328     extra_version_31 },
1329
1330
1331   /* GL 3.2 */
1332   { GL_CONTEXT_PROFILE_MASK, CONTEXT_INT(Const.ProfileMask),
1333     extra_version_32 },
1334
1335   /* GL_ARB_robustness */
1336   { GL_RESET_NOTIFICATION_STRATEGY_ARB, CONTEXT_ENUM(Const.ResetStrategy), NO_EXTRA },
1337
1338   /* GL_ARB_debug_output */
1339   { GL_DEBUG_LOGGED_MESSAGES_ARB, CONTEXT_INT(Debug.NumMessages), NO_EXTRA },
1340   { GL_DEBUG_NEXT_LOGGED_MESSAGE_LENGTH_ARB, CONTEXT_INT(Debug.NextMsgLength), NO_EXTRA },
1341   { GL_MAX_DEBUG_LOGGED_MESSAGES_ARB, CONST(MAX_DEBUG_LOGGED_MESSAGES), NO_EXTRA },
1342   { GL_MAX_DEBUG_MESSAGE_LENGTH_ARB, CONST(MAX_DEBUG_MESSAGE_LENGTH), NO_EXTRA },
1343
1344   { GL_MAX_DUAL_SOURCE_DRAW_BUFFERS, CONTEXT_INT(Const.MaxDualSourceDrawBuffers), extra_ARB_blend_func_extended },
1345
1346   /* GL_ARB_uniform_buffer_object */
1347   { GL_MAX_VERTEX_UNIFORM_BLOCKS, CONTEXT_INT(Const.VertexProgram.MaxUniformBlocks),
1348     extra_ARB_uniform_buffer_object },
1349   { GL_MAX_FRAGMENT_UNIFORM_BLOCKS, CONTEXT_INT(Const.FragmentProgram.MaxUniformBlocks),
1350     extra_ARB_uniform_buffer_object },
1351   { GL_MAX_GEOMETRY_UNIFORM_BLOCKS, CONTEXT_INT(Const.GeometryProgram.MaxUniformBlocks),
1352     extra_ARB_uniform_buffer_object_and_geometry_shader },
1353   { GL_MAX_COMBINED_UNIFORM_BLOCKS, CONTEXT_INT(Const.MaxCombinedUniformBlocks),
1354     extra_ARB_uniform_buffer_object },
1355   { GL_MAX_UNIFORM_BLOCK_SIZE, CONTEXT_INT(Const.MaxUniformBlockSize),
1356     extra_ARB_uniform_buffer_object },
1357   { GL_MAX_UNIFORM_BUFFER_BINDINGS, CONTEXT_INT(Const.MaxUniformBufferBindings),
1358     extra_ARB_uniform_buffer_object },
1359
1360   { GL_MAX_COMBINED_VERTEX_UNIFORM_COMPONENTS, CONTEXT_INT(Const.VertexProgram.MaxCombinedUniformComponents),
1361     extra_ARB_uniform_buffer_object },
1362   { GL_MAX_COMBINED_FRAGMENT_UNIFORM_COMPONENTS, CONTEXT_INT(Const.FragmentProgram.MaxCombinedUniformComponents),
1363     extra_ARB_uniform_buffer_object },
1364   { GL_MAX_COMBINED_GEOMETRY_UNIFORM_COMPONENTS, CONTEXT_INT(Const.GeometryProgram.MaxCombinedUniformComponents),
1365     extra_ARB_uniform_buffer_object_and_geometry_shader },
1366   { GL_UNIFORM_BUFFER_OFFSET_ALIGNMENT, CONTEXT_INT(Const.UniformBufferOffsetAlignment),
1367     extra_ARB_uniform_buffer_object },
1368
1369   { GL_UNIFORM_BUFFER_BINDING, LOC_CUSTOM, TYPE_INT, 0, extra_ARB_uniform_buffer_object },
1370
1371   /* GL_ARB_timer_query */
1372   { GL_TIMESTAMP, LOC_CUSTOM, TYPE_INT64, 0, extra_ARB_timer_query }
1373
1374#endif /* FEATURE_GL */
1375};
1376
1377/* All we need now is a way to look up the value struct from the enum.
1378 * The code generated by gcc for the old generated big switch
1379 * statement is a big, balanced, open coded if/else tree, essentially
1380 * an unrolled binary search.  It would be natural to sort the new
1381 * enum table and use bsearch(), but we will use a read-only hash
1382 * table instead.  bsearch() has a nice guaranteed worst case
1383 * performance, but we're also guaranteed to hit that worst case
1384 * (log2(n) iterations) for about half the enums.  Instead, using an
1385 * open addressing hash table, we can find the enum on the first try
1386 * for 80% of the enums, 1 collision for 10% and never more than 5
1387 * collisions for any enum (typical numbers).  And the code is very
1388 * simple, even though it feels a little magic. */
1389
1390static unsigned short table[API_LAST + 1][1024];
1391static const int prime_factor = 89, prime_step = 281;
1392
1393#ifdef GET_DEBUG
1394static void
1395print_table_stats(int api)
1396{
1397   int i, j, collisions[11], count, hash, mask;
1398   const struct value_desc *d;
1399   const char *api_names[] = {
1400      [API_OPENGL] = "GL",
1401      [API_OPENGL_CORE] = "GL_CORE",
1402      [API_OPENGLES] = "GLES",
1403      [API_OPENGLES2] = "GLES2",
1404   };
1405   const char *api_name;
1406
1407   api_name = api < Elements(api_names) ? api_names[api] : "N/A";
1408   count = 0;
1409   mask = Elements(table[api]) - 1;
1410   memset(collisions, 0, sizeof collisions);
1411
1412   for (i = 0; i < Elements(table[api]); i++) {
1413      if (!table[api][i])
1414         continue;
1415      count++;
1416      d = &values[table[api][i]];
1417      hash = (d->pname * prime_factor);
1418      j = 0;
1419      while (1) {
1420         if (values[table[api][hash & mask]].pname == d->pname)
1421            break;
1422         hash += prime_step;
1423         j++;
1424      }
1425
1426      if (j < 10)
1427         collisions[j]++;
1428      else
1429         collisions[10]++;
1430   }
1431
1432   printf("number of enums for %s: %d (total %ld)\n",
1433         api_name, count, Elements(values));
1434   for (i = 0; i < Elements(collisions) - 1; i++)
1435      if (collisions[i] > 0)
1436         printf("  %d enums with %d %scollisions\n",
1437               collisions[i], i, i == 10 ? "or more " : "");
1438}
1439#endif
1440
1441/**
1442 * Initialize the enum hash for a given API
1443 *
1444 * This is called from one_time_init() to insert the enum values that
1445 * are valid for the API in question into the enum hash table.
1446 *
1447 * \param the current context, for determining the API in question
1448 */
1449void _mesa_init_get_hash(struct gl_context *ctx)
1450{
1451   int i, hash, index, mask;
1452   int api;
1453   int api_mask = 0, api_bit;
1454
1455   api = ctx->API;
1456
1457   mask = Elements(table[api]) - 1;
1458   api_bit = 1 << api;
1459
1460   for (i = 0; i < Elements(values); i++) {
1461      if (values[i].type == TYPE_API_MASK) {
1462         api_mask = values[i].offset;
1463         continue;
1464      }
1465      if (!(api_mask & api_bit))
1466         continue;
1467
1468      hash = (values[i].pname * prime_factor) & mask;
1469      while (1) {
1470         index = hash & mask;
1471         if (!table[api][index]) {
1472            table[api][index] = i;
1473            break;
1474         }
1475         hash += prime_step;
1476      }
1477   }
1478
1479#ifdef GET_DEBUG
1480   print_table_stats();
1481#endif
1482}
1483
1484/**
1485 * Handle irregular enums
1486 *
1487 * Some values don't conform to the "well-known type at context
1488 * pointer + offset" pattern, so we have this function to catch all
1489 * the corner cases.  Typically, it's a computed value or a one-off
1490 * pointer to a custom struct or something.
1491 *
1492 * In this case we can't return a pointer to the value, so we'll have
1493 * to use the temporary variable 'v' declared back in the calling
1494 * glGet*v() function to store the result.
1495 *
1496 * \param ctx the current context
1497 * \param d the struct value_desc that describes the enum
1498 * \param v pointer to the tmp declared in the calling glGet*v() function
1499 */
1500static void
1501find_custom_value(struct gl_context *ctx, const struct value_desc *d, union value *v)
1502{
1503   struct gl_buffer_object **buffer_obj;
1504   struct gl_client_array *array;
1505   GLuint unit, *p;
1506
1507   switch (d->pname) {
1508   case GL_MAJOR_VERSION:
1509      v->value_int = ctx->Version / 10;
1510      break;
1511   case GL_MINOR_VERSION:
1512      v->value_int = ctx->Version % 10;
1513      break;
1514
1515   case GL_TEXTURE_1D:
1516   case GL_TEXTURE_2D:
1517   case GL_TEXTURE_3D:
1518   case GL_TEXTURE_1D_ARRAY_EXT:
1519   case GL_TEXTURE_2D_ARRAY_EXT:
1520   case GL_TEXTURE_CUBE_MAP_ARB:
1521   case GL_TEXTURE_RECTANGLE_NV:
1522   case GL_TEXTURE_EXTERNAL_OES:
1523      v->value_bool = _mesa_IsEnabled(d->pname);
1524      break;
1525
1526   case GL_LINE_STIPPLE_PATTERN:
1527      /* This is the only GLushort, special case it here by promoting
1528       * to an int rather than introducing a new type. */
1529      v->value_int = ctx->Line.StipplePattern;
1530      break;
1531
1532   case GL_CURRENT_RASTER_TEXTURE_COORDS:
1533      unit = ctx->Texture.CurrentUnit;
1534      v->value_float_4[0] = ctx->Current.RasterTexCoords[unit][0];
1535      v->value_float_4[1] = ctx->Current.RasterTexCoords[unit][1];
1536      v->value_float_4[2] = ctx->Current.RasterTexCoords[unit][2];
1537      v->value_float_4[3] = ctx->Current.RasterTexCoords[unit][3];
1538      break;
1539
1540   case GL_CURRENT_TEXTURE_COORDS:
1541      unit = ctx->Texture.CurrentUnit;
1542      v->value_float_4[0] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][0];
1543      v->value_float_4[1] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][1];
1544      v->value_float_4[2] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][2];
1545      v->value_float_4[3] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][3];
1546      break;
1547
1548   case GL_COLOR_WRITEMASK:
1549      v->value_int_4[0] = ctx->Color.ColorMask[0][RCOMP] ? 1 : 0;
1550      v->value_int_4[1] = ctx->Color.ColorMask[0][GCOMP] ? 1 : 0;
1551      v->value_int_4[2] = ctx->Color.ColorMask[0][BCOMP] ? 1 : 0;
1552      v->value_int_4[3] = ctx->Color.ColorMask[0][ACOMP] ? 1 : 0;
1553      break;
1554
1555   case GL_EDGE_FLAG:
1556      v->value_bool = ctx->Current.Attrib[VERT_ATTRIB_EDGEFLAG][0] == 1.0;
1557      break;
1558
1559   case GL_READ_BUFFER:
1560      v->value_enum = ctx->ReadBuffer->ColorReadBuffer;
1561      break;
1562
1563   case GL_MAP2_GRID_DOMAIN:
1564      v->value_float_4[0] = ctx->Eval.MapGrid2u1;
1565      v->value_float_4[1] = ctx->Eval.MapGrid2u2;
1566      v->value_float_4[2] = ctx->Eval.MapGrid2v1;
1567      v->value_float_4[3] = ctx->Eval.MapGrid2v2;
1568      break;
1569
1570   case GL_TEXTURE_STACK_DEPTH:
1571      unit = ctx->Texture.CurrentUnit;
1572      v->value_int = ctx->TextureMatrixStack[unit].Depth + 1;
1573      break;
1574   case GL_TEXTURE_MATRIX:
1575      unit = ctx->Texture.CurrentUnit;
1576      v->value_matrix = ctx->TextureMatrixStack[unit].Top;
1577      break;
1578
1579   case GL_TEXTURE_COORD_ARRAY:
1580   case GL_TEXTURE_COORD_ARRAY_SIZE:
1581   case GL_TEXTURE_COORD_ARRAY_TYPE:
1582   case GL_TEXTURE_COORD_ARRAY_STRIDE:
1583      array = &ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_TEX(ctx->Array.ActiveTexture)];
1584      v->value_int = *(GLuint *) ((char *) array + d->offset);
1585      break;
1586
1587   case GL_ACTIVE_TEXTURE_ARB:
1588      v->value_int = GL_TEXTURE0_ARB + ctx->Texture.CurrentUnit;
1589      break;
1590   case GL_CLIENT_ACTIVE_TEXTURE_ARB:
1591      v->value_int = GL_TEXTURE0_ARB + ctx->Array.ActiveTexture;
1592      break;
1593
1594   case GL_MODELVIEW_STACK_DEPTH:
1595   case GL_PROJECTION_STACK_DEPTH:
1596      v->value_int = *(GLint *) ((char *) ctx + d->offset) + 1;
1597      break;
1598
1599   case GL_MAX_TEXTURE_SIZE:
1600   case GL_MAX_3D_TEXTURE_SIZE:
1601   case GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB:
1602      p = (GLuint *) ((char *) ctx + d->offset);
1603      v->value_int = 1 << (*p - 1);
1604      break;
1605
1606   case GL_SCISSOR_BOX:
1607      v->value_int_4[0] = ctx->Scissor.X;
1608      v->value_int_4[1] = ctx->Scissor.Y;
1609      v->value_int_4[2] = ctx->Scissor.Width;
1610      v->value_int_4[3] = ctx->Scissor.Height;
1611      break;
1612
1613   case GL_LIST_INDEX:
1614      v->value_int =
1615	 ctx->ListState.CurrentList ? ctx->ListState.CurrentList->Name : 0;
1616      break;
1617   case GL_LIST_MODE:
1618      if (!ctx->CompileFlag)
1619	 v->value_enum = 0;
1620      else if (ctx->ExecuteFlag)
1621	 v->value_enum = GL_COMPILE_AND_EXECUTE;
1622      else
1623	 v->value_enum = GL_COMPILE;
1624      break;
1625
1626   case GL_VIEWPORT:
1627      v->value_int_4[0] = ctx->Viewport.X;
1628      v->value_int_4[1] = ctx->Viewport.Y;
1629      v->value_int_4[2] = ctx->Viewport.Width;
1630      v->value_int_4[3] = ctx->Viewport.Height;
1631      break;
1632
1633   case GL_ACTIVE_STENCIL_FACE_EXT:
1634      v->value_enum = ctx->Stencil.ActiveFace ? GL_BACK : GL_FRONT;
1635      break;
1636
1637   case GL_STENCIL_FAIL:
1638      v->value_enum = ctx->Stencil.FailFunc[ctx->Stencil.ActiveFace];
1639      break;
1640   case GL_STENCIL_FUNC:
1641      v->value_enum = ctx->Stencil.Function[ctx->Stencil.ActiveFace];
1642      break;
1643   case GL_STENCIL_PASS_DEPTH_FAIL:
1644      v->value_enum = ctx->Stencil.ZFailFunc[ctx->Stencil.ActiveFace];
1645      break;
1646   case GL_STENCIL_PASS_DEPTH_PASS:
1647      v->value_enum = ctx->Stencil.ZPassFunc[ctx->Stencil.ActiveFace];
1648      break;
1649   case GL_STENCIL_REF:
1650      v->value_int = ctx->Stencil.Ref[ctx->Stencil.ActiveFace];
1651      break;
1652   case GL_STENCIL_VALUE_MASK:
1653      v->value_int = ctx->Stencil.ValueMask[ctx->Stencil.ActiveFace];
1654      break;
1655   case GL_STENCIL_WRITEMASK:
1656      v->value_int = ctx->Stencil.WriteMask[ctx->Stencil.ActiveFace];
1657      break;
1658
1659   case GL_NUM_EXTENSIONS:
1660      v->value_int = _mesa_get_extension_count(ctx);
1661      break;
1662
1663   case GL_IMPLEMENTATION_COLOR_READ_TYPE_OES:
1664      v->value_int = _mesa_get_color_read_type(ctx);
1665      break;
1666   case GL_IMPLEMENTATION_COLOR_READ_FORMAT_OES:
1667      v->value_int = _mesa_get_color_read_format(ctx);
1668      break;
1669
1670   case GL_CURRENT_MATRIX_STACK_DEPTH_ARB:
1671      v->value_int = ctx->CurrentStack->Depth + 1;
1672      break;
1673   case GL_CURRENT_MATRIX_ARB:
1674   case GL_TRANSPOSE_CURRENT_MATRIX_ARB:
1675      v->value_matrix = ctx->CurrentStack->Top;
1676      break;
1677
1678   case GL_NUM_COMPRESSED_TEXTURE_FORMATS_ARB:
1679      v->value_int = _mesa_get_compressed_formats(ctx, NULL);
1680      break;
1681   case GL_COMPRESSED_TEXTURE_FORMATS_ARB:
1682      v->value_int_n.n =
1683	 _mesa_get_compressed_formats(ctx, v->value_int_n.ints);
1684      ASSERT(v->value_int_n.n <= 100);
1685      break;
1686
1687   case GL_MAX_VARYING_FLOATS_ARB:
1688      v->value_int = ctx->Const.MaxVarying * 4;
1689      break;
1690
1691   /* Various object names */
1692
1693   case GL_TEXTURE_BINDING_1D:
1694   case GL_TEXTURE_BINDING_2D:
1695   case GL_TEXTURE_BINDING_3D:
1696   case GL_TEXTURE_BINDING_1D_ARRAY_EXT:
1697   case GL_TEXTURE_BINDING_2D_ARRAY_EXT:
1698   case GL_TEXTURE_BINDING_CUBE_MAP_ARB:
1699   case GL_TEXTURE_BINDING_RECTANGLE_NV:
1700   case GL_TEXTURE_BINDING_EXTERNAL_OES:
1701      unit = ctx->Texture.CurrentUnit;
1702      v->value_int =
1703	 ctx->Texture.Unit[unit].CurrentTex[d->offset]->Name;
1704      break;
1705
1706   /* GL_ARB_vertex_buffer_object */
1707   case GL_VERTEX_ARRAY_BUFFER_BINDING_ARB:
1708   case GL_NORMAL_ARRAY_BUFFER_BINDING_ARB:
1709   case GL_COLOR_ARRAY_BUFFER_BINDING_ARB:
1710   case GL_INDEX_ARRAY_BUFFER_BINDING_ARB:
1711   case GL_EDGE_FLAG_ARRAY_BUFFER_BINDING_ARB:
1712   case GL_SECONDARY_COLOR_ARRAY_BUFFER_BINDING_ARB:
1713   case GL_FOG_COORDINATE_ARRAY_BUFFER_BINDING_ARB:
1714      buffer_obj = (struct gl_buffer_object **)
1715	 ((char *) ctx->Array.ArrayObj + d->offset);
1716      v->value_int = (*buffer_obj)->Name;
1717      break;
1718   case GL_ARRAY_BUFFER_BINDING_ARB:
1719      v->value_int = ctx->Array.ArrayBufferObj->Name;
1720      break;
1721   case GL_TEXTURE_COORD_ARRAY_BUFFER_BINDING_ARB:
1722      v->value_int =
1723	 ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_TEX(ctx->Array.ActiveTexture)].BufferObj->Name;
1724      break;
1725   case GL_ELEMENT_ARRAY_BUFFER_BINDING_ARB:
1726      v->value_int = ctx->Array.ArrayObj->ElementArrayBufferObj->Name;
1727      break;
1728
1729   /* ARB_copy_buffer */
1730   case GL_COPY_READ_BUFFER:
1731      v->value_int = ctx->CopyReadBuffer->Name;
1732      break;
1733   case GL_COPY_WRITE_BUFFER:
1734      v->value_int = ctx->CopyWriteBuffer->Name;
1735      break;
1736
1737   case GL_FRAGMENT_PROGRAM_BINDING_NV:
1738      v->value_int =
1739	 ctx->FragmentProgram.Current ? ctx->FragmentProgram.Current->Base.Id : 0;
1740      break;
1741   case GL_VERTEX_PROGRAM_BINDING_NV:
1742      v->value_int =
1743	 ctx->VertexProgram.Current ? ctx->VertexProgram.Current->Base.Id : 0;
1744      break;
1745   case GL_PIXEL_PACK_BUFFER_BINDING_EXT:
1746      v->value_int = ctx->Pack.BufferObj->Name;
1747      break;
1748   case GL_PIXEL_UNPACK_BUFFER_BINDING_EXT:
1749      v->value_int = ctx->Unpack.BufferObj->Name;
1750      break;
1751   case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING:
1752      v->value_int = ctx->TransformFeedback.CurrentBuffer->Name;
1753      break;
1754   case GL_TRANSFORM_FEEDBACK_BUFFER_PAUSED:
1755      v->value_int = ctx->TransformFeedback.CurrentObject->Paused;
1756      break;
1757   case GL_TRANSFORM_FEEDBACK_BUFFER_ACTIVE:
1758      v->value_int = ctx->TransformFeedback.CurrentObject->Active;
1759      break;
1760   case GL_TRANSFORM_FEEDBACK_BINDING:
1761      v->value_int = ctx->TransformFeedback.CurrentObject->Name;
1762      break;
1763   case GL_CURRENT_PROGRAM:
1764      v->value_int =
1765	 ctx->Shader.ActiveProgram ? ctx->Shader.ActiveProgram->Name : 0;
1766      break;
1767   case GL_READ_FRAMEBUFFER_BINDING_EXT:
1768      v->value_int = ctx->ReadBuffer->Name;
1769      break;
1770   case GL_RENDERBUFFER_BINDING_EXT:
1771      v->value_int =
1772	 ctx->CurrentRenderbuffer ? ctx->CurrentRenderbuffer->Name : 0;
1773      break;
1774   case GL_POINT_SIZE_ARRAY_BUFFER_BINDING_OES:
1775      v->value_int = ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_POINT_SIZE].BufferObj->Name;
1776      break;
1777
1778   case GL_FOG_COLOR:
1779      if(ctx->Color._ClampFragmentColor)
1780         COPY_4FV(v->value_float_4, ctx->Fog.Color);
1781      else
1782         COPY_4FV(v->value_float_4, ctx->Fog.ColorUnclamped);
1783      break;
1784   case GL_COLOR_CLEAR_VALUE:
1785      if(ctx->Color._ClampFragmentColor) {
1786         v->value_float_4[0] = CLAMP(ctx->Color.ClearColor.f[0], 0.0F, 1.0F);
1787         v->value_float_4[1] = CLAMP(ctx->Color.ClearColor.f[1], 0.0F, 1.0F);
1788         v->value_float_4[2] = CLAMP(ctx->Color.ClearColor.f[2], 0.0F, 1.0F);
1789         v->value_float_4[3] = CLAMP(ctx->Color.ClearColor.f[3], 0.0F, 1.0F);
1790      } else
1791         COPY_4FV(v->value_float_4, ctx->Color.ClearColor.f);
1792      break;
1793   case GL_BLEND_COLOR_EXT:
1794      if(ctx->Color._ClampFragmentColor)
1795         COPY_4FV(v->value_float_4, ctx->Color.BlendColor);
1796      else
1797         COPY_4FV(v->value_float_4, ctx->Color.BlendColorUnclamped);
1798      break;
1799   case GL_ALPHA_TEST_REF:
1800      if(ctx->Color._ClampFragmentColor)
1801         v->value_float = ctx->Color.AlphaRef;
1802      else
1803         v->value_float = ctx->Color.AlphaRefUnclamped;
1804      break;
1805   case GL_MAX_VERTEX_UNIFORM_VECTORS:
1806      v->value_int = ctx->Const.VertexProgram.MaxUniformComponents / 4;
1807      break;
1808
1809   case GL_MAX_FRAGMENT_UNIFORM_VECTORS:
1810      v->value_int = ctx->Const.FragmentProgram.MaxUniformComponents / 4;
1811      break;
1812
1813   /* GL_ARB_texture_buffer_object */
1814   case GL_TEXTURE_BUFFER_ARB:
1815      v->value_int = ctx->Texture.BufferObject->Name;
1816      break;
1817   case GL_TEXTURE_BINDING_BUFFER_ARB:
1818      unit = ctx->Texture.CurrentUnit;
1819      v->value_int =
1820         ctx->Texture.Unit[unit].CurrentTex[TEXTURE_BUFFER_INDEX]->Name;
1821      break;
1822   case GL_TEXTURE_BUFFER_DATA_STORE_BINDING_ARB:
1823      {
1824         struct gl_buffer_object *buf =
1825            ctx->Texture.Unit[ctx->Texture.CurrentUnit]
1826            .CurrentTex[TEXTURE_BUFFER_INDEX]->BufferObject;
1827         v->value_int = buf ? buf->Name : 0;
1828      }
1829      break;
1830   case GL_TEXTURE_BUFFER_FORMAT_ARB:
1831      v->value_int = ctx->Texture.Unit[ctx->Texture.CurrentUnit]
1832         .CurrentTex[TEXTURE_BUFFER_INDEX]->BufferObjectFormat;
1833      break;
1834
1835   /* GL_ARB_sampler_objects */
1836   case GL_SAMPLER_BINDING:
1837      {
1838         struct gl_sampler_object *samp =
1839            ctx->Texture.Unit[ctx->Texture.CurrentUnit].Sampler;
1840         v->value_int = samp ? samp->Name : 0;
1841      }
1842      break;
1843   /* GL_ARB_uniform_buffer_object */
1844   case GL_UNIFORM_BUFFER_BINDING:
1845      v->value_int = ctx->UniformBuffer->Name;
1846      break;
1847   /* GL_ARB_timer_query */
1848   case GL_TIMESTAMP:
1849      if (ctx->Driver.GetTimestamp) {
1850         v->value_int64 = ctx->Driver.GetTimestamp(ctx);
1851      }
1852      else {
1853         _mesa_problem(ctx, "driver doesn't implement GetTimestamp");
1854      }
1855      break;
1856   }
1857}
1858
1859/**
1860 * Check extra constraints on a struct value_desc descriptor
1861 *
1862 * If a struct value_desc has a non-NULL extra pointer, it means that
1863 * there are a number of extra constraints to check or actions to
1864 * perform.  The extras is just an integer array where each integer
1865 * encode different constraints or actions.
1866 *
1867 * \param ctx current context
1868 * \param func name of calling glGet*v() function for error reporting
1869 * \param d the struct value_desc that has the extra constraints
1870 *
1871 * \return GL_FALSE if one of the constraints was not satisfied,
1872 *     otherwise GL_TRUE.
1873 */
1874static GLboolean
1875check_extra(struct gl_context *ctx, const char *func, const struct value_desc *d)
1876{
1877   const GLuint version = ctx->Version;
1878   int total, enabled;
1879   const int *e;
1880
1881   total = 0;
1882   enabled = 0;
1883   for (e = d->extra; *e != EXTRA_END; e++)
1884      switch (*e) {
1885      case EXTRA_VERSION_30:
1886	 if (version >= 30) {
1887	    total++;
1888	    enabled++;
1889	 }
1890	 break;
1891      case EXTRA_VERSION_31:
1892	 if (version >= 31) {
1893	    total++;
1894	    enabled++;
1895	 }
1896	 break;
1897      case EXTRA_VERSION_32:
1898	 if (version >= 32) {
1899	    total++;
1900	    enabled++;
1901	 }
1902	 break;
1903      case EXTRA_NEW_FRAG_CLAMP:
1904         if (ctx->NewState & (_NEW_BUFFERS | _NEW_FRAG_CLAMP))
1905            _mesa_update_state(ctx);
1906         break;
1907      case EXTRA_API_ES2:
1908	 if (ctx->API == API_OPENGLES2) {
1909	    total++;
1910	    enabled++;
1911	 }
1912	 break;
1913      case EXTRA_API_GL:
1914	 if (_mesa_is_desktop_gl(ctx)) {
1915	    total++;
1916	    enabled++;
1917	 }
1918	 break;
1919      case EXTRA_NEW_BUFFERS:
1920	 if (ctx->NewState & _NEW_BUFFERS)
1921	    _mesa_update_state(ctx);
1922	 break;
1923      case EXTRA_FLUSH_CURRENT:
1924	 FLUSH_CURRENT(ctx, 0);
1925	 break;
1926      case EXTRA_VALID_DRAW_BUFFER:
1927	 if (d->pname - GL_DRAW_BUFFER0_ARB >= ctx->Const.MaxDrawBuffers) {
1928	    _mesa_error(ctx, GL_INVALID_OPERATION, "%s(draw buffer %u)",
1929			func, d->pname - GL_DRAW_BUFFER0_ARB);
1930	    return GL_FALSE;
1931	 }
1932	 break;
1933      case EXTRA_VALID_TEXTURE_UNIT:
1934	 if (ctx->Texture.CurrentUnit >= ctx->Const.MaxTextureCoordUnits) {
1935	    _mesa_error(ctx, GL_INVALID_OPERATION, "%s(texture %u)",
1936			func, ctx->Texture.CurrentUnit);
1937	    return GL_FALSE;
1938	 }
1939	 break;
1940      case EXTRA_VALID_CLIP_DISTANCE:
1941	 if (d->pname - GL_CLIP_DISTANCE0 >= ctx->Const.MaxClipPlanes) {
1942	    _mesa_error(ctx, GL_INVALID_ENUM, "%s(clip distance %u)",
1943			func, d->pname - GL_CLIP_DISTANCE0);
1944	    return GL_FALSE;
1945	 }
1946	 break;
1947      case EXTRA_GLSL_130:
1948	 if (ctx->Const.GLSLVersion >= 130) {
1949	    total++;
1950	    enabled++;
1951	 }
1952	 break;
1953      case EXTRA_END:
1954	 break;
1955      default: /* *e is a offset into the extension struct */
1956	 total++;
1957	 if (*(GLboolean *) ((char *) &ctx->Extensions + *e))
1958	    enabled++;
1959	 break;
1960      }
1961
1962   if (total > 0 && enabled == 0) {
1963      _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func,
1964                  _mesa_lookup_enum_by_nr(d->pname));
1965      return GL_FALSE;
1966   }
1967
1968   return GL_TRUE;
1969}
1970
1971static const struct value_desc error_value =
1972   { 0, 0, TYPE_INVALID, NO_OFFSET, NO_EXTRA };
1973
1974/**
1975 * Find the struct value_desc corresponding to the enum 'pname'.
1976 *
1977 * We hash the enum value to get an index into the 'table' array,
1978 * which holds the index in the 'values' array of struct value_desc.
1979 * Once we've found the entry, we do the extra checks, if any, then
1980 * look up the value and return a pointer to it.
1981 *
1982 * If the value has to be computed (for example, it's the result of a
1983 * function call or we need to add 1 to it), we use the tmp 'v' to
1984 * store the result.
1985 *
1986 * \param func name of glGet*v() func for error reporting
1987 * \param pname the enum value we're looking up
1988 * \param p is were we return the pointer to the value
1989 * \param v a tmp union value variable in the calling glGet*v() function
1990 *
1991 * \return the struct value_desc corresponding to the enum or a struct
1992 *     value_desc of TYPE_INVALID if not found.  This lets the calling
1993 *     glGet*v() function jump right into a switch statement and
1994 *     handle errors there instead of having to check for NULL.
1995 */
1996static const struct value_desc *
1997find_value(const char *func, GLenum pname, void **p, union value *v)
1998{
1999   GET_CURRENT_CONTEXT(ctx);
2000   struct gl_texture_unit *unit;
2001   int mask, hash;
2002   const struct value_desc *d;
2003   int api;
2004
2005   api = ctx->API;
2006   mask = Elements(table[api]) - 1;
2007   hash = (pname * prime_factor);
2008   while (1) {
2009      d = &values[table[api][hash & mask]];
2010
2011      /* If the enum isn't valid, the hash walk ends with index 0,
2012       * which is the API mask entry at the beginning of values[]. */
2013      if (unlikely(d->type == TYPE_API_MASK)) {
2014         _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func,
2015               _mesa_lookup_enum_by_nr(pname));
2016         return &error_value;
2017      }
2018
2019      if (likely(d->pname == pname))
2020         break;
2021
2022      hash += prime_step;
2023   }
2024
2025   if (unlikely(d->extra && !check_extra(ctx, func, d)))
2026      return &error_value;
2027
2028   switch (d->location) {
2029   case LOC_BUFFER:
2030      *p = ((char *) ctx->DrawBuffer + d->offset);
2031      return d;
2032   case LOC_CONTEXT:
2033      *p = ((char *) ctx + d->offset);
2034      return d;
2035   case LOC_ARRAY:
2036      *p = ((char *) ctx->Array.ArrayObj + d->offset);
2037      return d;
2038   case LOC_TEXUNIT:
2039      unit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2040      *p = ((char *) unit + d->offset);
2041      return d;
2042   case LOC_CUSTOM:
2043      find_custom_value(ctx, d, v);
2044      *p = v;
2045      return d;
2046   default:
2047      assert(0);
2048      break;
2049   }
2050
2051   /* silence warning */
2052   return &error_value;
2053}
2054
2055static const int transpose[] = {
2056   0, 4,  8, 12,
2057   1, 5,  9, 13,
2058   2, 6, 10, 14,
2059   3, 7, 11, 15
2060};
2061
2062void GLAPIENTRY
2063_mesa_GetBooleanv(GLenum pname, GLboolean *params)
2064{
2065   const struct value_desc *d;
2066   union value v;
2067   GLmatrix *m;
2068   int shift, i;
2069   void *p;
2070   GET_CURRENT_CONTEXT(ctx);
2071
2072   ASSERT_OUTSIDE_BEGIN_END(ctx);
2073
2074   d = find_value("glGetBooleanv", pname, &p, &v);
2075   switch (d->type) {
2076   case TYPE_INVALID:
2077      break;
2078   case TYPE_CONST:
2079      params[0] = INT_TO_BOOLEAN(d->offset);
2080      break;
2081
2082   case TYPE_FLOAT_4:
2083   case TYPE_FLOATN_4:
2084      params[3] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[3]);
2085   case TYPE_FLOAT_3:
2086   case TYPE_FLOATN_3:
2087      params[2] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[2]);
2088   case TYPE_FLOAT_2:
2089   case TYPE_FLOATN_2:
2090      params[1] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[1]);
2091   case TYPE_FLOAT:
2092   case TYPE_FLOATN:
2093      params[0] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[0]);
2094      break;
2095
2096   case TYPE_DOUBLEN:
2097      params[0] = FLOAT_TO_BOOLEAN(((GLdouble *) p)[0]);
2098      break;
2099
2100   case TYPE_INT_4:
2101      params[3] = INT_TO_BOOLEAN(((GLint *) p)[3]);
2102   case TYPE_INT_3:
2103      params[2] = INT_TO_BOOLEAN(((GLint *) p)[2]);
2104   case TYPE_INT_2:
2105   case TYPE_ENUM_2:
2106      params[1] = INT_TO_BOOLEAN(((GLint *) p)[1]);
2107   case TYPE_INT:
2108   case TYPE_ENUM:
2109      params[0] = INT_TO_BOOLEAN(((GLint *) p)[0]);
2110      break;
2111
2112   case TYPE_INT_N:
2113      for (i = 0; i < v.value_int_n.n; i++)
2114	 params[i] = INT_TO_BOOLEAN(v.value_int_n.ints[i]);
2115      break;
2116
2117   case TYPE_INT64:
2118      params[0] = INT64_TO_BOOLEAN(((GLint64 *) p)[0]);
2119      break;
2120
2121   case TYPE_BOOLEAN:
2122      params[0] = ((GLboolean*) p)[0];
2123      break;
2124
2125   case TYPE_MATRIX:
2126      m = *(GLmatrix **) p;
2127      for (i = 0; i < 16; i++)
2128	 params[i] = FLOAT_TO_BOOLEAN(m->m[i]);
2129      break;
2130
2131   case TYPE_MATRIX_T:
2132      m = *(GLmatrix **) p;
2133      for (i = 0; i < 16; i++)
2134	 params[i] = FLOAT_TO_BOOLEAN(m->m[transpose[i]]);
2135      break;
2136
2137   case TYPE_BIT_0:
2138   case TYPE_BIT_1:
2139   case TYPE_BIT_2:
2140   case TYPE_BIT_3:
2141   case TYPE_BIT_4:
2142   case TYPE_BIT_5:
2143   case TYPE_BIT_6:
2144   case TYPE_BIT_7:
2145      shift = d->type - TYPE_BIT_0;
2146      params[0] = (*(GLbitfield *) p >> shift) & 1;
2147      break;
2148   }
2149}
2150
2151void GLAPIENTRY
2152_mesa_GetFloatv(GLenum pname, GLfloat *params)
2153{
2154   const struct value_desc *d;
2155   union value v;
2156   GLmatrix *m;
2157   int shift, i;
2158   void *p;
2159   GET_CURRENT_CONTEXT(ctx);
2160
2161   ASSERT_OUTSIDE_BEGIN_END(ctx);
2162
2163   d = find_value("glGetFloatv", pname, &p, &v);
2164   switch (d->type) {
2165   case TYPE_INVALID:
2166      break;
2167   case TYPE_CONST:
2168      params[0] = (GLfloat) d->offset;
2169      break;
2170
2171   case TYPE_FLOAT_4:
2172   case TYPE_FLOATN_4:
2173      params[3] = ((GLfloat *) p)[3];
2174   case TYPE_FLOAT_3:
2175   case TYPE_FLOATN_3:
2176      params[2] = ((GLfloat *) p)[2];
2177   case TYPE_FLOAT_2:
2178   case TYPE_FLOATN_2:
2179      params[1] = ((GLfloat *) p)[1];
2180   case TYPE_FLOAT:
2181   case TYPE_FLOATN:
2182      params[0] = ((GLfloat *) p)[0];
2183      break;
2184
2185   case TYPE_DOUBLEN:
2186      params[0] = ((GLdouble *) p)[0];
2187      break;
2188
2189   case TYPE_INT_4:
2190      params[3] = (GLfloat) (((GLint *) p)[3]);
2191   case TYPE_INT_3:
2192      params[2] = (GLfloat) (((GLint *) p)[2]);
2193   case TYPE_INT_2:
2194   case TYPE_ENUM_2:
2195      params[1] = (GLfloat) (((GLint *) p)[1]);
2196   case TYPE_INT:
2197   case TYPE_ENUM:
2198      params[0] = (GLfloat) (((GLint *) p)[0]);
2199      break;
2200
2201   case TYPE_INT_N:
2202      for (i = 0; i < v.value_int_n.n; i++)
2203	 params[i] = INT_TO_FLOAT(v.value_int_n.ints[i]);
2204      break;
2205
2206   case TYPE_INT64:
2207      params[0] = ((GLint64 *) p)[0];
2208      break;
2209
2210   case TYPE_BOOLEAN:
2211      params[0] = BOOLEAN_TO_FLOAT(*(GLboolean*) p);
2212      break;
2213
2214   case TYPE_MATRIX:
2215      m = *(GLmatrix **) p;
2216      for (i = 0; i < 16; i++)
2217	 params[i] = m->m[i];
2218      break;
2219
2220   case TYPE_MATRIX_T:
2221      m = *(GLmatrix **) p;
2222      for (i = 0; i < 16; i++)
2223	 params[i] = m->m[transpose[i]];
2224      break;
2225
2226   case TYPE_BIT_0:
2227   case TYPE_BIT_1:
2228   case TYPE_BIT_2:
2229   case TYPE_BIT_3:
2230   case TYPE_BIT_4:
2231   case TYPE_BIT_5:
2232   case TYPE_BIT_6:
2233   case TYPE_BIT_7:
2234      shift = d->type - TYPE_BIT_0;
2235      params[0] = BOOLEAN_TO_FLOAT((*(GLbitfield *) p >> shift) & 1);
2236      break;
2237   }
2238}
2239
2240void GLAPIENTRY
2241_mesa_GetIntegerv(GLenum pname, GLint *params)
2242{
2243   const struct value_desc *d;
2244   union value v;
2245   GLmatrix *m;
2246   int shift, i;
2247   void *p;
2248   GET_CURRENT_CONTEXT(ctx);
2249
2250   ASSERT_OUTSIDE_BEGIN_END(ctx);
2251
2252   d = find_value("glGetIntegerv", pname, &p, &v);
2253   switch (d->type) {
2254   case TYPE_INVALID:
2255      break;
2256   case TYPE_CONST:
2257      params[0] = d->offset;
2258      break;
2259
2260   case TYPE_FLOAT_4:
2261      params[3] = IROUND(((GLfloat *) p)[3]);
2262   case TYPE_FLOAT_3:
2263      params[2] = IROUND(((GLfloat *) p)[2]);
2264   case TYPE_FLOAT_2:
2265      params[1] = IROUND(((GLfloat *) p)[1]);
2266   case TYPE_FLOAT:
2267      params[0] = IROUND(((GLfloat *) p)[0]);
2268      break;
2269
2270   case TYPE_FLOATN_4:
2271      params[3] = FLOAT_TO_INT(((GLfloat *) p)[3]);
2272   case TYPE_FLOATN_3:
2273      params[2] = FLOAT_TO_INT(((GLfloat *) p)[2]);
2274   case TYPE_FLOATN_2:
2275      params[1] = FLOAT_TO_INT(((GLfloat *) p)[1]);
2276   case TYPE_FLOATN:
2277      params[0] = FLOAT_TO_INT(((GLfloat *) p)[0]);
2278      break;
2279
2280   case TYPE_DOUBLEN:
2281      params[0] = FLOAT_TO_INT(((GLdouble *) p)[0]);
2282      break;
2283
2284   case TYPE_INT_4:
2285      params[3] = ((GLint *) p)[3];
2286   case TYPE_INT_3:
2287      params[2] = ((GLint *) p)[2];
2288   case TYPE_INT_2:
2289   case TYPE_ENUM_2:
2290      params[1] = ((GLint *) p)[1];
2291   case TYPE_INT:
2292   case TYPE_ENUM:
2293      params[0] = ((GLint *) p)[0];
2294      break;
2295
2296   case TYPE_INT_N:
2297      for (i = 0; i < v.value_int_n.n; i++)
2298	 params[i] = v.value_int_n.ints[i];
2299      break;
2300
2301   case TYPE_INT64:
2302      params[0] = INT64_TO_INT(((GLint64 *) p)[0]);
2303      break;
2304
2305   case TYPE_BOOLEAN:
2306      params[0] = BOOLEAN_TO_INT(*(GLboolean*) p);
2307      break;
2308
2309   case TYPE_MATRIX:
2310      m = *(GLmatrix **) p;
2311      for (i = 0; i < 16; i++)
2312	 params[i] = FLOAT_TO_INT(m->m[i]);
2313      break;
2314
2315   case TYPE_MATRIX_T:
2316      m = *(GLmatrix **) p;
2317      for (i = 0; i < 16; i++)
2318	 params[i] = FLOAT_TO_INT(m->m[transpose[i]]);
2319      break;
2320
2321   case TYPE_BIT_0:
2322   case TYPE_BIT_1:
2323   case TYPE_BIT_2:
2324   case TYPE_BIT_3:
2325   case TYPE_BIT_4:
2326   case TYPE_BIT_5:
2327   case TYPE_BIT_6:
2328   case TYPE_BIT_7:
2329      shift = d->type - TYPE_BIT_0;
2330      params[0] = (*(GLbitfield *) p >> shift) & 1;
2331      break;
2332   }
2333}
2334
2335#if FEATURE_ARB_sync
2336void GLAPIENTRY
2337_mesa_GetInteger64v(GLenum pname, GLint64 *params)
2338{
2339   const struct value_desc *d;
2340   union value v;
2341   GLmatrix *m;
2342   int shift, i;
2343   void *p;
2344   GET_CURRENT_CONTEXT(ctx);
2345
2346   ASSERT_OUTSIDE_BEGIN_END(ctx);
2347
2348   d = find_value("glGetInteger64v", pname, &p, &v);
2349   switch (d->type) {
2350   case TYPE_INVALID:
2351      break;
2352   case TYPE_CONST:
2353      params[0] = d->offset;
2354      break;
2355
2356   case TYPE_FLOAT_4:
2357      params[3] = IROUND64(((GLfloat *) p)[3]);
2358   case TYPE_FLOAT_3:
2359      params[2] = IROUND64(((GLfloat *) p)[2]);
2360   case TYPE_FLOAT_2:
2361      params[1] = IROUND64(((GLfloat *) p)[1]);
2362   case TYPE_FLOAT:
2363      params[0] = IROUND64(((GLfloat *) p)[0]);
2364      break;
2365
2366   case TYPE_FLOATN_4:
2367      params[3] = FLOAT_TO_INT64(((GLfloat *) p)[3]);
2368   case TYPE_FLOATN_3:
2369      params[2] = FLOAT_TO_INT64(((GLfloat *) p)[2]);
2370   case TYPE_FLOATN_2:
2371      params[1] = FLOAT_TO_INT64(((GLfloat *) p)[1]);
2372   case TYPE_FLOATN:
2373      params[0] = FLOAT_TO_INT64(((GLfloat *) p)[0]);
2374      break;
2375
2376   case TYPE_DOUBLEN:
2377      params[0] = FLOAT_TO_INT64(((GLdouble *) p)[0]);
2378      break;
2379
2380   case TYPE_INT_4:
2381      params[3] = ((GLint *) p)[3];
2382   case TYPE_INT_3:
2383      params[2] = ((GLint *) p)[2];
2384   case TYPE_INT_2:
2385   case TYPE_ENUM_2:
2386      params[1] = ((GLint *) p)[1];
2387   case TYPE_INT:
2388   case TYPE_ENUM:
2389      params[0] = ((GLint *) p)[0];
2390      break;
2391
2392   case TYPE_INT_N:
2393      for (i = 0; i < v.value_int_n.n; i++)
2394	 params[i] = INT_TO_BOOLEAN(v.value_int_n.ints[i]);
2395      break;
2396
2397   case TYPE_INT64:
2398      params[0] = ((GLint64 *) p)[0];
2399      break;
2400
2401   case TYPE_BOOLEAN:
2402      params[0] = ((GLboolean*) p)[0];
2403      break;
2404
2405   case TYPE_MATRIX:
2406      m = *(GLmatrix **) p;
2407      for (i = 0; i < 16; i++)
2408	 params[i] = FLOAT_TO_INT64(m->m[i]);
2409      break;
2410
2411   case TYPE_MATRIX_T:
2412      m = *(GLmatrix **) p;
2413      for (i = 0; i < 16; i++)
2414	 params[i] = FLOAT_TO_INT64(m->m[transpose[i]]);
2415      break;
2416
2417   case TYPE_BIT_0:
2418   case TYPE_BIT_1:
2419   case TYPE_BIT_2:
2420   case TYPE_BIT_3:
2421   case TYPE_BIT_4:
2422   case TYPE_BIT_5:
2423   case TYPE_BIT_6:
2424   case TYPE_BIT_7:
2425      shift = d->type - TYPE_BIT_0;
2426      params[0] = (*(GLbitfield *) p >> shift) & 1;
2427      break;
2428   }
2429}
2430#endif /* FEATURE_ARB_sync */
2431
2432void GLAPIENTRY
2433_mesa_GetDoublev(GLenum pname, GLdouble *params)
2434{
2435   const struct value_desc *d;
2436   union value v;
2437   GLmatrix *m;
2438   int shift, i;
2439   void *p;
2440   GET_CURRENT_CONTEXT(ctx);
2441
2442   ASSERT_OUTSIDE_BEGIN_END(ctx);
2443
2444   d = find_value("glGetDoublev", pname, &p, &v);
2445   switch (d->type) {
2446   case TYPE_INVALID:
2447      break;
2448   case TYPE_CONST:
2449      params[0] = d->offset;
2450      break;
2451
2452   case TYPE_FLOAT_4:
2453   case TYPE_FLOATN_4:
2454      params[3] = ((GLfloat *) p)[3];
2455   case TYPE_FLOAT_3:
2456   case TYPE_FLOATN_3:
2457      params[2] = ((GLfloat *) p)[2];
2458   case TYPE_FLOAT_2:
2459   case TYPE_FLOATN_2:
2460      params[1] = ((GLfloat *) p)[1];
2461   case TYPE_FLOAT:
2462   case TYPE_FLOATN:
2463      params[0] = ((GLfloat *) p)[0];
2464      break;
2465
2466   case TYPE_DOUBLEN:
2467      params[0] = ((GLdouble *) p)[0];
2468      break;
2469
2470   case TYPE_INT_4:
2471      params[3] = ((GLint *) p)[3];
2472   case TYPE_INT_3:
2473      params[2] = ((GLint *) p)[2];
2474   case TYPE_INT_2:
2475   case TYPE_ENUM_2:
2476      params[1] = ((GLint *) p)[1];
2477   case TYPE_INT:
2478   case TYPE_ENUM:
2479      params[0] = ((GLint *) p)[0];
2480      break;
2481
2482   case TYPE_INT_N:
2483      for (i = 0; i < v.value_int_n.n; i++)
2484	 params[i] = v.value_int_n.ints[i];
2485      break;
2486
2487   case TYPE_INT64:
2488      params[0] = ((GLint64 *) p)[0];
2489      break;
2490
2491   case TYPE_BOOLEAN:
2492      params[0] = *(GLboolean*) p;
2493      break;
2494
2495   case TYPE_MATRIX:
2496      m = *(GLmatrix **) p;
2497      for (i = 0; i < 16; i++)
2498	 params[i] = m->m[i];
2499      break;
2500
2501   case TYPE_MATRIX_T:
2502      m = *(GLmatrix **) p;
2503      for (i = 0; i < 16; i++)
2504	 params[i] = m->m[transpose[i]];
2505      break;
2506
2507   case TYPE_BIT_0:
2508   case TYPE_BIT_1:
2509   case TYPE_BIT_2:
2510   case TYPE_BIT_3:
2511   case TYPE_BIT_4:
2512   case TYPE_BIT_5:
2513   case TYPE_BIT_6:
2514   case TYPE_BIT_7:
2515      shift = d->type - TYPE_BIT_0;
2516      params[0] = (*(GLbitfield *) p >> shift) & 1;
2517      break;
2518   }
2519}
2520
2521static enum value_type
2522find_value_indexed(const char *func, GLenum pname, int index, union value *v)
2523{
2524   GET_CURRENT_CONTEXT(ctx);
2525
2526   switch (pname) {
2527
2528   case GL_BLEND:
2529      if (index >= ctx->Const.MaxDrawBuffers)
2530	 goto invalid_value;
2531      if (!ctx->Extensions.EXT_draw_buffers2)
2532	 goto invalid_enum;
2533      v->value_int = (ctx->Color.BlendEnabled >> index) & 1;
2534      return TYPE_INT;
2535
2536   case GL_BLEND_SRC:
2537      /* fall-through */
2538   case GL_BLEND_SRC_RGB:
2539      if (index >= ctx->Const.MaxDrawBuffers)
2540	 goto invalid_value;
2541      if (!ctx->Extensions.ARB_draw_buffers_blend)
2542	 goto invalid_enum;
2543      v->value_int = ctx->Color.Blend[index].SrcRGB;
2544      return TYPE_INT;
2545   case GL_BLEND_SRC_ALPHA:
2546      if (index >= ctx->Const.MaxDrawBuffers)
2547	 goto invalid_value;
2548      if (!ctx->Extensions.ARB_draw_buffers_blend)
2549	 goto invalid_enum;
2550      v->value_int = ctx->Color.Blend[index].SrcA;
2551      return TYPE_INT;
2552   case GL_BLEND_DST:
2553      /* fall-through */
2554   case GL_BLEND_DST_RGB:
2555      if (index >= ctx->Const.MaxDrawBuffers)
2556	 goto invalid_value;
2557      if (!ctx->Extensions.ARB_draw_buffers_blend)
2558	 goto invalid_enum;
2559      v->value_int = ctx->Color.Blend[index].DstRGB;
2560      return TYPE_INT;
2561   case GL_BLEND_DST_ALPHA:
2562      if (index >= ctx->Const.MaxDrawBuffers)
2563	 goto invalid_value;
2564      if (!ctx->Extensions.ARB_draw_buffers_blend)
2565	 goto invalid_enum;
2566      v->value_int = ctx->Color.Blend[index].DstA;
2567      return TYPE_INT;
2568   case GL_BLEND_EQUATION_RGB:
2569      if (index >= ctx->Const.MaxDrawBuffers)
2570	 goto invalid_value;
2571      if (!ctx->Extensions.ARB_draw_buffers_blend)
2572	 goto invalid_enum;
2573      v->value_int = ctx->Color.Blend[index].EquationRGB;
2574      return TYPE_INT;
2575   case GL_BLEND_EQUATION_ALPHA:
2576      if (index >= ctx->Const.MaxDrawBuffers)
2577	 goto invalid_value;
2578      if (!ctx->Extensions.ARB_draw_buffers_blend)
2579	 goto invalid_enum;
2580      v->value_int = ctx->Color.Blend[index].EquationA;
2581      return TYPE_INT;
2582
2583   case GL_COLOR_WRITEMASK:
2584      if (index >= ctx->Const.MaxDrawBuffers)
2585	 goto invalid_value;
2586      if (!ctx->Extensions.EXT_draw_buffers2)
2587	 goto invalid_enum;
2588      v->value_int_4[0] = ctx->Color.ColorMask[index][RCOMP] ? 1 : 0;
2589      v->value_int_4[1] = ctx->Color.ColorMask[index][GCOMP] ? 1 : 0;
2590      v->value_int_4[2] = ctx->Color.ColorMask[index][BCOMP] ? 1 : 0;
2591      v->value_int_4[3] = ctx->Color.ColorMask[index][ACOMP] ? 1 : 0;
2592      return TYPE_INT_4;
2593
2594   case GL_TRANSFORM_FEEDBACK_BUFFER_START:
2595      if (index >= ctx->Const.MaxTransformFeedbackBuffers)
2596	 goto invalid_value;
2597      if (!ctx->Extensions.EXT_transform_feedback)
2598	 goto invalid_enum;
2599      v->value_int64 = ctx->TransformFeedback.CurrentObject->Offset[index];
2600      return TYPE_INT64;
2601
2602   case GL_TRANSFORM_FEEDBACK_BUFFER_SIZE:
2603      if (index >= ctx->Const.MaxTransformFeedbackBuffers)
2604	 goto invalid_value;
2605      if (!ctx->Extensions.EXT_transform_feedback)
2606	 goto invalid_enum;
2607      v->value_int64 = ctx->TransformFeedback.CurrentObject->Size[index];
2608      return TYPE_INT64;
2609
2610   case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING:
2611      if (index >= ctx->Const.MaxTransformFeedbackBuffers)
2612	 goto invalid_value;
2613      if (!ctx->Extensions.EXT_transform_feedback)
2614	 goto invalid_enum;
2615      v->value_int = ctx->TransformFeedback.CurrentObject->BufferNames[index];
2616      return TYPE_INT;
2617
2618   case GL_UNIFORM_BUFFER_BINDING:
2619      if (index >= ctx->Const.MaxUniformBufferBindings)
2620	 goto invalid_value;
2621      if (!ctx->Extensions.ARB_uniform_buffer_object)
2622	 goto invalid_enum;
2623      v->value_int = ctx->UniformBufferBindings[index].BufferObject->Name;
2624      return TYPE_INT;
2625
2626   case GL_UNIFORM_BUFFER_START:
2627      if (index >= ctx->Const.MaxUniformBufferBindings)
2628	 goto invalid_value;
2629      if (!ctx->Extensions.ARB_uniform_buffer_object)
2630	 goto invalid_enum;
2631      v->value_int = ctx->UniformBufferBindings[index].Offset;
2632      return TYPE_INT;
2633
2634   case GL_UNIFORM_BUFFER_SIZE:
2635      if (index >= ctx->Const.MaxUniformBufferBindings)
2636	 goto invalid_value;
2637      if (!ctx->Extensions.ARB_uniform_buffer_object)
2638	 goto invalid_enum;
2639      v->value_int = ctx->UniformBufferBindings[index].Size;
2640      return TYPE_INT;
2641   }
2642
2643 invalid_enum:
2644   _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func,
2645               _mesa_lookup_enum_by_nr(pname));
2646   return TYPE_INVALID;
2647 invalid_value:
2648   _mesa_error(ctx, GL_INVALID_VALUE, "%s(pname=%s)", func,
2649               _mesa_lookup_enum_by_nr(pname));
2650   return TYPE_INVALID;
2651}
2652
2653void GLAPIENTRY
2654_mesa_GetBooleanIndexedv( GLenum pname, GLuint index, GLboolean *params )
2655{
2656   union value v;
2657   enum value_type type =
2658      find_value_indexed("glGetBooleanIndexedv", pname, index, &v);
2659
2660   switch (type) {
2661   case TYPE_INT:
2662      params[0] = INT_TO_BOOLEAN(v.value_int);
2663      break;
2664   case TYPE_INT_4:
2665      params[0] = INT_TO_BOOLEAN(v.value_int_4[0]);
2666      params[1] = INT_TO_BOOLEAN(v.value_int_4[1]);
2667      params[2] = INT_TO_BOOLEAN(v.value_int_4[2]);
2668      params[3] = INT_TO_BOOLEAN(v.value_int_4[3]);
2669      break;
2670   case TYPE_INT64:
2671      params[0] = INT64_TO_BOOLEAN(v.value_int);
2672      break;
2673   default:
2674      ; /* nothing - GL error was recorded */
2675   }
2676}
2677
2678void GLAPIENTRY
2679_mesa_GetIntegerIndexedv( GLenum pname, GLuint index, GLint *params )
2680{
2681   union value v;
2682   enum value_type type =
2683      find_value_indexed("glGetIntegerIndexedv", pname, index, &v);
2684
2685   switch (type) {
2686   case TYPE_INT:
2687      params[0] = v.value_int;
2688      break;
2689   case TYPE_INT_4:
2690      params[0] = v.value_int_4[0];
2691      params[1] = v.value_int_4[1];
2692      params[2] = v.value_int_4[2];
2693      params[3] = v.value_int_4[3];
2694      break;
2695   case TYPE_INT64:
2696      params[0] = INT64_TO_INT(v.value_int);
2697      break;
2698   default:
2699      ; /* nothing - GL error was recorded */
2700   }
2701}
2702
2703#if FEATURE_ARB_sync
2704void GLAPIENTRY
2705_mesa_GetInteger64Indexedv( GLenum pname, GLuint index, GLint64 *params )
2706{
2707   union value v;
2708   enum value_type type =
2709      find_value_indexed("glGetIntegerIndexedv", pname, index, &v);
2710
2711   switch (type) {
2712   case TYPE_INT:
2713      params[0] = v.value_int;
2714      break;
2715   case TYPE_INT_4:
2716      params[0] = v.value_int_4[0];
2717      params[1] = v.value_int_4[1];
2718      params[2] = v.value_int_4[2];
2719      params[3] = v.value_int_4[3];
2720      break;
2721   case TYPE_INT64:
2722      params[0] = v.value_int;
2723      break;
2724   default:
2725      ; /* nothing - GL error was recorded */
2726   }
2727}
2728#endif /* FEATURE_ARB_sync */
2729
2730#if FEATURE_ES1
2731void GLAPIENTRY
2732_mesa_GetFixedv(GLenum pname, GLfixed *params)
2733{
2734   const struct value_desc *d;
2735   union value v;
2736   GLmatrix *m;
2737   int shift, i;
2738   void *p;
2739
2740   d = find_value("glGetDoublev", pname, &p, &v);
2741   switch (d->type) {
2742   case TYPE_INVALID:
2743      break;
2744   case TYPE_CONST:
2745      params[0] = INT_TO_FIXED(d->offset);
2746      break;
2747
2748   case TYPE_FLOAT_4:
2749   case TYPE_FLOATN_4:
2750      params[3] = FLOAT_TO_FIXED(((GLfloat *) p)[3]);
2751   case TYPE_FLOAT_3:
2752   case TYPE_FLOATN_3:
2753      params[2] = FLOAT_TO_FIXED(((GLfloat *) p)[2]);
2754   case TYPE_FLOAT_2:
2755   case TYPE_FLOATN_2:
2756      params[1] = FLOAT_TO_FIXED(((GLfloat *) p)[1]);
2757   case TYPE_FLOAT:
2758   case TYPE_FLOATN:
2759      params[0] = FLOAT_TO_FIXED(((GLfloat *) p)[0]);
2760      break;
2761
2762   case TYPE_DOUBLEN:
2763      params[0] = FLOAT_TO_FIXED(((GLdouble *) p)[0]);
2764      break;
2765
2766   case TYPE_INT_4:
2767      params[3] = INT_TO_FIXED(((GLint *) p)[3]);
2768   case TYPE_INT_3:
2769      params[2] = INT_TO_FIXED(((GLint *) p)[2]);
2770   case TYPE_INT_2:
2771   case TYPE_ENUM_2:
2772      params[1] = INT_TO_FIXED(((GLint *) p)[1]);
2773   case TYPE_INT:
2774   case TYPE_ENUM:
2775      params[0] = INT_TO_FIXED(((GLint *) p)[0]);
2776      break;
2777
2778   case TYPE_INT_N:
2779      for (i = 0; i < v.value_int_n.n; i++)
2780	 params[i] = INT_TO_FIXED(v.value_int_n.ints[i]);
2781      break;
2782
2783   case TYPE_INT64:
2784      params[0] = ((GLint64 *) p)[0];
2785      break;
2786
2787   case TYPE_BOOLEAN:
2788      params[0] = BOOLEAN_TO_FIXED(((GLboolean*) p)[0]);
2789      break;
2790
2791   case TYPE_MATRIX:
2792      m = *(GLmatrix **) p;
2793      for (i = 0; i < 16; i++)
2794	 params[i] = FLOAT_TO_FIXED(m->m[i]);
2795      break;
2796
2797   case TYPE_MATRIX_T:
2798      m = *(GLmatrix **) p;
2799      for (i = 0; i < 16; i++)
2800	 params[i] = FLOAT_TO_FIXED(m->m[transpose[i]]);
2801      break;
2802
2803   case TYPE_BIT_0:
2804   case TYPE_BIT_1:
2805   case TYPE_BIT_2:
2806   case TYPE_BIT_3:
2807   case TYPE_BIT_4:
2808   case TYPE_BIT_5:
2809   case TYPE_BIT_6:
2810   case TYPE_BIT_7:
2811      shift = d->type - TYPE_BIT_0;
2812      params[0] = BOOLEAN_TO_FIXED((*(GLbitfield *) p >> shift) & 1);
2813      break;
2814   }
2815}
2816#endif
2817