src/mesa/main/get.c

   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 #define FLOAT_TO_BOOLEAN(X)   ( (X) ? GL_TRUE : GL_FALSE )
  65 #define FLOAT_TO_FIXED(F)     ( ((F) * 65536.0f > INT_MAX) ? INT_MAX : \
  66                                 ((F) * 65536.0f < INT_MIN) ? INT_MIN : \
  67                                 (GLint) ((F) * 65536.0f) )
  68
  69 #define INT_TO_BOOLEAN(I)     ( (I) ? GL_TRUE : GL_FALSE )
  70 #define INT_TO_FIXED(I)       ( ((I) > SHRT_MAX) ? INT_MAX : \
  71                                 ((I) < SHRT_MIN) ? INT_MIN : \
  72                                 (GLint) ((I) * 65536) )
  73
  74 #define INT64_TO_BOOLEAN(I)   ( (I) ? GL_TRUE : GL_FALSE )
  75 #define INT64_TO_INT(I)       ( (GLint)((I > INT_MAX) ? INT_MAX : ((I < INT_MIN) ? INT_MIN : (I))) )
  76
  77 #define BOOLEAN_TO_INT(B)     ( (GLint) (B) )
  78 #define BOOLEAN_TO_INT64(B)   ( (GLint64) (B) )
  79 #define BOOLEAN_TO_FLOAT(B)   ( (B) ? 1.0F : 0.0F )
  80 #define BOOLEAN_TO_FIXED(B)   ( (GLint) ((B) ? 1 : 0) << 16 )
  81
  82 #define ENUM_TO_INT64(E)      ( (GLint64) (E) )
  83 #define ENUM_TO_FIXED(E)      (E)
  84
  85 enum value_type {
  86    TYPE_INVALID,
  87    TYPE_API_MASK,
  88    TYPE_INT,
  89    TYPE_INT_2,
  90    TYPE_INT_3,
  91    TYPE_INT_4,
  92    TYPE_INT_N,
  93    TYPE_INT64,
  94    TYPE_ENUM,
  95    TYPE_ENUM_2,
  96    TYPE_BOOLEAN,
  97    TYPE_BIT_0,
  98    TYPE_BIT_1,
  99    TYPE_BIT_2,
 100    TYPE_BIT_3,
 101    TYPE_BIT_4,
 102    TYPE_BIT_5,
 103    TYPE_BIT_6,
 104    TYPE_BIT_7,
 105    TYPE_FLOAT,
 106    TYPE_FLOAT_2,
 107    TYPE_FLOAT_3,
 108    TYPE_FLOAT_4,
 109    TYPE_FLOATN,
 110    TYPE_FLOATN_2,
 111    TYPE_FLOATN_3,
 112    TYPE_FLOATN_4,
 113    TYPE_DOUBLEN,
 114    TYPE_MATRIX,
 115    TYPE_MATRIX_T,
 116    TYPE_CONST
 117 };
 118
 119 enum value_location {
 120    LOC_BUFFER,
 121    LOC_CONTEXT,
 122    LOC_ARRAY,
 123    LOC_TEXUNIT,
 124    LOC_CUSTOM
 125 };
 126
 127 enum value_extra {
 128    EXTRA_END = 0x8000,
 129    EXTRA_VERSION_30,
 130    EXTRA_VERSION_31,
 131    EXTRA_VERSION_32,
 132    EXTRA_API_GL,
 133    EXTRA_API_ES2,
 134    EXTRA_NEW_BUFFERS,
 135    EXTRA_NEW_FRAG_CLAMP,
 136    EXTRA_VALID_DRAW_BUFFER,
 137    EXTRA_VALID_TEXTURE_UNIT,
 138    EXTRA_VALID_CLIP_DISTANCE,
 139    EXTRA_FLUSH_CURRENT,
 140    EXTRA_GLSL_130,
 141 };
 142
 143 #define NO_EXTRA NULL
 144 #define NO_OFFSET 0
 145
 146 struct value_desc {
 147    GLenum pname;
 148    GLubyte location;  /**< enum value_location */
 149    GLubyte type;      /**< enum value_type */
 150    int offset;
 151    const int *extra;
 152 };
 153
 154 union value {
 155    GLfloat value_float;
 156    GLfloat value_float_4[4];
 157    GLmatrix *value_matrix;
 158    GLint value_int;
 159    GLint value_int_4[4];
 160    GLint64 value_int64;
 161    GLenum value_enum;
 162
 163    /* Sigh, see GL_COMPRESSED_TEXTURE_FORMATS_ARB handling */
 164    struct {
 165       GLint n, ints[100];
 166    } value_int_n;
 167    GLboolean value_bool;
 168 };
 169
 170 #define BUFFER_FIELD(field, type) \
 171    LOC_BUFFER, type, offsetof(struct gl_framebuffer, field)
 172 #define CONTEXT_FIELD(field, type) \
 173    LOC_CONTEXT, type, offsetof(struct gl_context, field)
 174 #define ARRAY_FIELD(field, type) \
 175    LOC_ARRAY, type, offsetof(struct gl_array_object, field)
 176 #define CONST(value) \
 177    LOC_CONTEXT, TYPE_CONST, value
 178
 179 #define BUFFER_INT(field) BUFFER_FIELD(field, TYPE_INT)
 180 #define BUFFER_ENUM(field) BUFFER_FIELD(field, TYPE_ENUM)
 181 #define BUFFER_BOOL(field) BUFFER_FIELD(field, TYPE_BOOLEAN)
 182
 183 #define CONTEXT_INT(field) CONTEXT_FIELD(field, TYPE_INT)
 184 #define CONTEXT_INT2(field) CONTEXT_FIELD(field, TYPE_INT_2)
 185 #define CONTEXT_INT64(field) CONTEXT_FIELD(field, TYPE_INT64)
 186 #define CONTEXT_ENUM(field) CONTEXT_FIELD(field, TYPE_ENUM)
 187 #define CONTEXT_ENUM2(field) CONTEXT_FIELD(field, TYPE_ENUM_2)
 188 #define CONTEXT_BOOL(field) CONTEXT_FIELD(field, TYPE_BOOLEAN)
 189 #define CONTEXT_BIT0(field) CONTEXT_FIELD(field, TYPE_BIT_0)
 190 #define CONTEXT_BIT1(field) CONTEXT_FIELD(field, TYPE_BIT_1)
 191 #define CONTEXT_BIT2(field) CONTEXT_FIELD(field, TYPE_BIT_2)
 192 #define CONTEXT_BIT3(field) CONTEXT_FIELD(field, TYPE_BIT_3)
 193 #define CONTEXT_BIT4(field) CONTEXT_FIELD(field, TYPE_BIT_4)
 194 #define CONTEXT_BIT5(field) CONTEXT_FIELD(field, TYPE_BIT_5)
 195 #define CONTEXT_BIT6(field) CONTEXT_FIELD(field, TYPE_BIT_6)
 196 #define CONTEXT_BIT7(field) CONTEXT_FIELD(field, TYPE_BIT_7)
 197 #define CONTEXT_FLOAT(field) CONTEXT_FIELD(field, TYPE_FLOAT)
 198 #define CONTEXT_FLOAT2(field) CONTEXT_FIELD(field, TYPE_FLOAT_2)
 199 #define CONTEXT_FLOAT3(field) CONTEXT_FIELD(field, TYPE_FLOAT_3)
 200 #define CONTEXT_FLOAT4(field) CONTEXT_FIELD(field, TYPE_FLOAT_4)
 201 #define CONTEXT_MATRIX(field) CONTEXT_FIELD(field, TYPE_MATRIX)
 202 #define CONTEXT_MATRIX_T(field) CONTEXT_FIELD(field, TYPE_MATRIX_T)
 203
 204 #define ARRAY_INT(field) ARRAY_FIELD(field, TYPE_INT)
 205 #define ARRAY_ENUM(field) ARRAY_FIELD(field, TYPE_ENUM)
 206 #define ARRAY_BOOL(field) ARRAY_FIELD(field, TYPE_BOOLEAN)
 207
 208 #define EXT(f)                                  \
 209    offsetof(struct gl_extensions, f)
 210
 211 #define EXTRA_EXT(e)                            \
 212    static const int extra_##e[] = {             \
 213       EXT(e), EXTRA_END                         \
 214    }
 215
 216 #define EXTRA_EXT2(e1, e2)                      \
 217    static const int extra_##e1##_##e2[] = {     \
 218       EXT(e1), EXT(e2), EXTRA_END               \
 219    }
 220
 221 /* The 'extra' mechanism is a way to specify extra checks (such as
 222  * extensions or specific gl versions) or actions (flush current, new
 223  * buffers) that we need to do before looking up an enum.  We need to
 224  * declare them all up front so we can refer to them in the value_desc
 225  * structs below. */
 226
 227 static const int extra_new_buffers[] = {
 228    EXTRA_NEW_BUFFERS,
 229    EXTRA_END
 230 };
 231
 232 static const int extra_new_frag_clamp[] = {
 233    EXTRA_NEW_FRAG_CLAMP,
 234    EXTRA_END
 235 };
 236
 237 static const int extra_valid_draw_buffer[] = {
 238    EXTRA_VALID_DRAW_BUFFER,
 239    EXTRA_END
 240 };
 241
 242 static const int extra_valid_texture_unit[] = {
 243    EXTRA_VALID_TEXTURE_UNIT,
 244    EXTRA_END
 245 };
 246
 247 static const int extra_valid_clip_distance[] = {
 248    EXTRA_VALID_CLIP_DISTANCE,
 249    EXTRA_END
 250 };
 251
 252 static const int extra_flush_current_valid_texture_unit[] = {
 253    EXTRA_FLUSH_CURRENT,
 254    EXTRA_VALID_TEXTURE_UNIT,
 255    EXTRA_END
 256 };
 257
 258 static const int extra_flush_current[] = {
 259    EXTRA_FLUSH_CURRENT,
 260    EXTRA_END
 261 };
 262
 263 static const int extra_EXT_secondary_color_flush_current[] = {
 264    EXT(EXT_secondary_color),
 265    EXTRA_FLUSH_CURRENT,
 266    EXTRA_END
 267 };
 268
 269 static const int extra_EXT_fog_coord_flush_current[] = {
 270    EXT(EXT_fog_coord),
 271    EXTRA_FLUSH_CURRENT,
 272    EXTRA_END
 273 };
 274
 275 static const int extra_EXT_texture_integer[] = {
 276    EXT(EXT_texture_integer),
 277    EXTRA_END
 278 };
 279
 280 static const int extra_GLSL_130[] = {
 281    EXTRA_GLSL_130,
 282    EXTRA_END
 283 };
 284
 285 static const int extra_texture_buffer_object[] = {
 286    EXTRA_VERSION_31,
 287    EXT(ARB_texture_buffer_object),
 288    EXTRA_END
 289 };
 290
 291 static const int extra_ARB_uniform_buffer_object_and_geometry_shader[] = {
 292    EXT(ARB_uniform_buffer_object),
 293    EXT(ARB_geometry_shader4),
 294    EXTRA_END
 295 };
 296
 297
 298 EXTRA_EXT(ARB_ES2_compatibility);
 299 EXTRA_EXT(ARB_texture_cube_map);
 300 EXTRA_EXT(MESA_texture_array);
 301 EXTRA_EXT2(EXT_secondary_color, ARB_vertex_program);
 302 EXTRA_EXT(EXT_secondary_color);
 303 EXTRA_EXT(EXT_fog_coord);
 304 EXTRA_EXT(NV_fog_distance);
 305 EXTRA_EXT(EXT_texture_filter_anisotropic);
 306 EXTRA_EXT(IBM_rasterpos_clip);
 307 EXTRA_EXT(NV_point_sprite);
 308 EXTRA_EXT(NV_vertex_program);
 309 EXTRA_EXT(NV_fragment_program);
 310 EXTRA_EXT(NV_texture_rectangle);
 311 EXTRA_EXT(EXT_stencil_two_side);
 312 EXTRA_EXT(NV_light_max_exponent);
 313 EXTRA_EXT(EXT_depth_bounds_test);
 314 EXTRA_EXT(ARB_depth_clamp);
 315 EXTRA_EXT(ATI_fragment_shader);
 316 EXTRA_EXT(EXT_framebuffer_blit);
 317 EXTRA_EXT(ARB_shader_objects);
 318 EXTRA_EXT(EXT_provoking_vertex);
 319 EXTRA_EXT(ARB_fragment_shader);
 320 EXTRA_EXT(ARB_fragment_program);
 321 EXTRA_EXT2(ARB_framebuffer_object, EXT_framebuffer_multisample);
 322 EXTRA_EXT(EXT_framebuffer_object);
 323 EXTRA_EXT(ARB_seamless_cube_map);
 324 EXTRA_EXT(EXT_compiled_vertex_array);
 325 EXTRA_EXT(ARB_sync);
 326 EXTRA_EXT(ARB_vertex_shader);
 327 EXTRA_EXT(EXT_transform_feedback);
 328 EXTRA_EXT(ARB_transform_feedback2);
 329 EXTRA_EXT(ARB_transform_feedback3);
 330 EXTRA_EXT(EXT_pixel_buffer_object);
 331 EXTRA_EXT(ARB_vertex_program);
 332 EXTRA_EXT2(NV_point_sprite, ARB_point_sprite);
 333 EXTRA_EXT2(ARB_fragment_program, NV_fragment_program);
 334 EXTRA_EXT2(ARB_vertex_program, NV_vertex_program);
 335 EXTRA_EXT2(ARB_vertex_program, ARB_fragment_program);
 336 EXTRA_EXT(ARB_geometry_shader4);
 337 EXTRA_EXT(ARB_color_buffer_float);
 338 EXTRA_EXT(ARB_copy_buffer);
 339 EXTRA_EXT(EXT_framebuffer_sRGB);
 340 EXTRA_EXT(ARB_texture_buffer_object);
 341 EXTRA_EXT(OES_EGL_image_external);
 342 EXTRA_EXT(ARB_blend_func_extended);
 343 EXTRA_EXT(ARB_uniform_buffer_object);
 344 EXTRA_EXT(ARB_timer_query);
 345
 346 static const int
 347 extra_ARB_vertex_program_ARB_fragment_program_NV_vertex_program[] = {
 348    EXT(ARB_vertex_program),
 349    EXT(ARB_fragment_program),
 350    EXT(NV_vertex_program),
 351    EXTRA_END
 352 };
 353
 354 static const int
 355 extra_NV_vertex_program_ARB_vertex_program_ARB_fragment_program_NV_vertex_program[] = {
 356    EXT(NV_vertex_program),
 357    EXT(ARB_vertex_program),
 358    EXT(ARB_fragment_program),
 359    EXT(NV_vertex_program),
 360    EXTRA_END
 361 };
 362
 363 static const int
 364 extra_NV_primitive_restart[] = {
 365    EXT(NV_primitive_restart),
 366    EXTRA_END
 367 };
 368
 369 static const int extra_version_30[] = { EXTRA_VERSION_30, EXTRA_END };
 370 static const int extra_version_31[] = { EXTRA_VERSION_31, EXTRA_END };
 371 static const int extra_version_32[] = { EXTRA_VERSION_32, EXTRA_END };
 372
 373 static const int
 374 extra_ARB_vertex_program_api_es2[] = {
 375    EXT(ARB_vertex_program),
 376    EXTRA_API_ES2,
 377    EXTRA_END
 378 };
 379
 380 /* The ReadBuffer get token is valid under either full GL or under
 381  * GLES2 if the NV_read_buffer extension is available. */
 382 static const int
 383 extra_NV_read_buffer_api_gl[] = {
 384    EXT(NV_read_buffer),
 385    EXTRA_API_GL,
 386    EXTRA_END
 387 };
 388
 389 #define API_OPENGL_BIT (1 << API_OPENGL)
 390 #define API_OPENGLES_BIT (1 << API_OPENGLES)
 391 #define API_OPENGLES2_BIT (1 << API_OPENGLES2)
 392 #define API_OPENGL_CORE_BIT (1 << API_OPENGL_CORE)
 393
 394 /* This is the big table describing all the enums we accept in
 395  * glGet*v().  The table is partitioned into six parts: enums
 396  * understood by all GL APIs (OpenGL, GLES and GLES2), enums shared
 397  * between OpenGL and GLES, enums exclusive to GLES, etc for the
 398  * remaining combinations.  When we add the enums to the hash table in
 399  * _mesa_init_get_hash(), we only add the enums for the API we're
 400  * instantiating and the different sections are guarded by #if
 401  * FEATURE_GL etc to make sure we only compile in the enums we may
 402  * need. */
 403
 404 static const struct value_desc values[] = {
 405    /* Enums shared between OpenGL, GLES1 and GLES2 */
 406    { 0, 0, TYPE_API_MASK,
 407      API_OPENGL_BIT | API_OPENGLES_BIT | API_OPENGLES2_BIT |
 408        API_OPENGL_CORE_BIT,
 409      NO_EXTRA},
 410    { GL_ALPHA_BITS, BUFFER_INT(Visual.alphaBits), extra_new_buffers },
 411    { GL_BLEND, CONTEXT_BIT0(Color.BlendEnabled), NO_EXTRA },
 412    { GL_BLEND_SRC, CONTEXT_ENUM(Color.Blend[0].SrcRGB), NO_EXTRA },
 413    { GL_BLUE_BITS, BUFFER_INT(Visual.blueBits), extra_new_buffers },
 414    { GL_COLOR_CLEAR_VALUE, LOC_CUSTOM, TYPE_FLOATN_4, 0, extra_new_frag_clamp },
 415    { GL_COLOR_WRITEMASK, LOC_CUSTOM, TYPE_INT_4, 0, NO_EXTRA },
 416    { GL_CULL_FACE, CONTEXT_BOOL(Polygon.CullFlag), NO_EXTRA },
 417    { GL_CULL_FACE_MODE, CONTEXT_ENUM(Polygon.CullFaceMode), NO_EXTRA },
 418    { GL_DEPTH_BITS, BUFFER_INT(Visual.depthBits), NO_EXTRA },
 419    { GL_DEPTH_CLEAR_VALUE, CONTEXT_FIELD(Depth.Clear, TYPE_DOUBLEN), NO_EXTRA },
 420    { GL_DEPTH_FUNC, CONTEXT_ENUM(Depth.Func), NO_EXTRA },
 421    { GL_DEPTH_RANGE, CONTEXT_FIELD(Viewport.Near, TYPE_FLOATN_2), NO_EXTRA },
 422    { GL_DEPTH_TEST, CONTEXT_BOOL(Depth.Test), NO_EXTRA },
 423    { GL_DEPTH_WRITEMASK, CONTEXT_BOOL(Depth.Mask), NO_EXTRA },
 424    { GL_DITHER, CONTEXT_BOOL(Color.DitherFlag), NO_EXTRA },
 425    { GL_FRONT_FACE, CONTEXT_ENUM(Polygon.FrontFace), NO_EXTRA },
 426    { GL_GREEN_BITS, BUFFER_INT(Visual.greenBits), extra_new_buffers },
 427    { GL_LINE_WIDTH, CONTEXT_FLOAT(Line.Width), NO_EXTRA },
 428    { GL_ALIASED_LINE_WIDTH_RANGE, CONTEXT_FLOAT2(Const.MinLineWidth), NO_EXTRA },
 429    { GL_MAX_ELEMENTS_VERTICES, CONTEXT_INT(Const.MaxArrayLockSize), NO_EXTRA },
 430    { GL_MAX_ELEMENTS_INDICES, CONTEXT_INT(Const.MaxArrayLockSize), NO_EXTRA },
 431    { GL_MAX_TEXTURE_SIZE, LOC_CUSTOM, TYPE_INT,
 432      offsetof(struct gl_context, Const.MaxTextureLevels), NO_EXTRA },
 433    { GL_MAX_VIEWPORT_DIMS, CONTEXT_INT2(Const.MaxViewportWidth), NO_EXTRA },
 434    { GL_PACK_ALIGNMENT, CONTEXT_INT(Pack.Alignment), NO_EXTRA },
 435    { GL_ALIASED_POINT_SIZE_RANGE, CONTEXT_FLOAT2(Const.MinPointSize), NO_EXTRA },
 436    { GL_POLYGON_OFFSET_FACTOR, CONTEXT_FLOAT(Polygon.OffsetFactor ), NO_EXTRA },
 437    { GL_POLYGON_OFFSET_UNITS, CONTEXT_FLOAT(Polygon.OffsetUnits ), NO_EXTRA },
 438    { GL_POLYGON_OFFSET_FILL, CONTEXT_BOOL(Polygon.OffsetFill), NO_EXTRA },
 439    { GL_RED_BITS, BUFFER_INT(Visual.redBits), extra_new_buffers },
 440    { GL_SCISSOR_BOX, LOC_CUSTOM, TYPE_INT_4, 0, NO_EXTRA },
 441    { GL_SCISSOR_TEST, CONTEXT_BOOL(Scissor.Enabled), NO_EXTRA },
 442    { GL_STENCIL_BITS, BUFFER_INT(Visual.stencilBits), NO_EXTRA },
 443    { GL_STENCIL_CLEAR_VALUE, CONTEXT_INT(Stencil.Clear), NO_EXTRA },
 444    { GL_STENCIL_FAIL, LOC_CUSTOM, TYPE_ENUM, NO_OFFSET, NO_EXTRA },
 445    { GL_STENCIL_FUNC, LOC_CUSTOM, TYPE_ENUM, NO_OFFSET, NO_EXTRA },
 446    { GL_STENCIL_PASS_DEPTH_FAIL, LOC_CUSTOM, TYPE_ENUM, NO_OFFSET, NO_EXTRA },
 447    { GL_STENCIL_PASS_DEPTH_PASS, LOC_CUSTOM, TYPE_ENUM, NO_OFFSET, NO_EXTRA },
 448    { GL_STENCIL_REF, LOC_CUSTOM, TYPE_INT, NO_OFFSET, NO_EXTRA },
 449    { GL_STENCIL_TEST, CONTEXT_BOOL(Stencil.Enabled), NO_EXTRA },
 450    { GL_STENCIL_VALUE_MASK, LOC_CUSTOM, TYPE_INT, NO_OFFSET, NO_EXTRA },
 451    { GL_STENCIL_WRITEMASK, LOC_CUSTOM, TYPE_INT, NO_OFFSET, NO_EXTRA },
 452    { GL_SUBPIXEL_BITS, CONTEXT_INT(Const.SubPixelBits), NO_EXTRA },
 453    { GL_TEXTURE_BINDING_2D, LOC_CUSTOM, TYPE_INT, TEXTURE_2D_INDEX, NO_EXTRA },
 454    { GL_UNPACK_ALIGNMENT, CONTEXT_INT(Unpack.Alignment), NO_EXTRA },
 455    { GL_VIEWPORT, LOC_CUSTOM, TYPE_INT_4, 0, NO_EXTRA },
 456
 457    /* GL_ARB_multitexture */
 458    { GL_ACTIVE_TEXTURE, LOC_CUSTOM, TYPE_INT, 0, NO_EXTRA },
 459
 460    /* Note that all the OES_* extensions require that the Mesa "struct
 461     * gl_extensions" include a member with the name of the extension.
 462     * That structure does not yet include OES extensions (and we're
 463     * not sure whether it will).  If it does, all the OES_*
 464     * extensions below should mark the dependency. */
 465
 466    /* GL_ARB_texture_cube_map */
 467    { GL_TEXTURE_BINDING_CUBE_MAP_ARB, LOC_CUSTOM, TYPE_INT,
 468      TEXTURE_CUBE_INDEX, extra_ARB_texture_cube_map },
 469    { GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB, LOC_CUSTOM, TYPE_INT,
 470      offsetof(struct gl_context, Const.MaxCubeTextureLevels),
 471      extra_ARB_texture_cube_map }, /* XXX: OES_texture_cube_map */
 472
 473    /* XXX: OES_blend_subtract */
 474    { GL_BLEND_SRC_RGB_EXT, CONTEXT_ENUM(Color.Blend[0].SrcRGB), NO_EXTRA },
 475    { GL_BLEND_DST_RGB_EXT, CONTEXT_ENUM(Color.Blend[0].DstRGB), NO_EXTRA },
 476    { GL_BLEND_SRC_ALPHA_EXT, CONTEXT_ENUM(Color.Blend[0].SrcA), NO_EXTRA },
 477    { GL_BLEND_DST_ALPHA_EXT, CONTEXT_ENUM(Color.Blend[0].DstA), NO_EXTRA },
 478
 479    /* GL_BLEND_EQUATION_RGB, which is what we're really after, is
 480     * defined identically to GL_BLEND_EQUATION. */
 481    { GL_BLEND_EQUATION, CONTEXT_ENUM(Color.Blend[0].EquationRGB), NO_EXTRA },
 482    { GL_BLEND_EQUATION_ALPHA_EXT, CONTEXT_ENUM(Color.Blend[0].EquationA), NO_EXTRA },
 483
 484    /* GL_ARB_texture_compression */
 485    { GL_NUM_COMPRESSED_TEXTURE_FORMATS_ARB, LOC_CUSTOM, TYPE_INT, 0, NO_EXTRA },
 486    { GL_COMPRESSED_TEXTURE_FORMATS_ARB, LOC_CUSTOM, TYPE_INT_N, 0, NO_EXTRA },
 487
 488    /* GL_ARB_multisample */
 489    { GL_SAMPLE_ALPHA_TO_COVERAGE_ARB,
 490      CONTEXT_BOOL(Multisample.SampleAlphaToCoverage), NO_EXTRA },
 491    { GL_SAMPLE_COVERAGE_ARB, CONTEXT_BOOL(Multisample.SampleCoverage), NO_EXTRA },
 492    { GL_SAMPLE_COVERAGE_VALUE_ARB,
 493      CONTEXT_FLOAT(Multisample.SampleCoverageValue), NO_EXTRA },
 494    { GL_SAMPLE_COVERAGE_INVERT_ARB,
 495      CONTEXT_BOOL(Multisample.SampleCoverageInvert), NO_EXTRA },
 496    { GL_SAMPLE_BUFFERS_ARB, BUFFER_INT(Visual.sampleBuffers), NO_EXTRA },
 497    { GL_SAMPLES_ARB, BUFFER_INT(Visual.samples), NO_EXTRA },
 498
 499    /* GL_SGIS_generate_mipmap */
 500    { GL_GENERATE_MIPMAP_HINT_SGIS, CONTEXT_ENUM(Hint.GenerateMipmap), NO_EXTRA },
 501
 502    /* GL_ARB_vertex_buffer_object */
 503    { GL_ARRAY_BUFFER_BINDING_ARB, LOC_CUSTOM, TYPE_INT, 0, NO_EXTRA },
 504
 505    /* GL_ARB_vertex_buffer_object */
 506    /* GL_WEIGHT_ARRAY_BUFFER_BINDING_ARB - not supported */
 507    { GL_ELEMENT_ARRAY_BUFFER_BINDING_ARB, LOC_CUSTOM, TYPE_INT, 0, NO_EXTRA },
 508
 509    /* GL_ARB_color_buffer_float */
 510    { GL_CLAMP_VERTEX_COLOR, CONTEXT_ENUM(Light.ClampVertexColor), extra_ARB_color_buffer_float },
 511    { GL_CLAMP_FRAGMENT_COLOR, CONTEXT_ENUM(Color.ClampFragmentColor), extra_ARB_color_buffer_float },
 512    { GL_CLAMP_READ_COLOR, CONTEXT_ENUM(Color.ClampReadColor), extra_ARB_color_buffer_float },
 513
 514    /* GL_ARB_copy_buffer */
 515    { GL_COPY_READ_BUFFER, LOC_CUSTOM, TYPE_INT, 0, extra_ARB_copy_buffer },
 516    { GL_COPY_WRITE_BUFFER, LOC_CUSTOM, TYPE_INT, 0, extra_ARB_copy_buffer },
 517
 518    /* GL_OES_read_format */
 519    { GL_IMPLEMENTATION_COLOR_READ_TYPE_OES, LOC_CUSTOM, TYPE_INT, 0,
 520      extra_new_buffers },
 521    { GL_IMPLEMENTATION_COLOR_READ_FORMAT_OES, LOC_CUSTOM, TYPE_INT, 0,
 522      extra_new_buffers },
 523
 524    /* GL_EXT_framebuffer_object */
 525    { GL_FRAMEBUFFER_BINDING_EXT, BUFFER_INT(Name),
 526      extra_EXT_framebuffer_object },
 527    { GL_RENDERBUFFER_BINDING_EXT, LOC_CUSTOM, TYPE_INT, 0,
 528      extra_EXT_framebuffer_object },
 529    { GL_MAX_RENDERBUFFER_SIZE_EXT, CONTEXT_INT(Const.MaxRenderbufferSize),
 530      extra_EXT_framebuffer_object },
 531
 532    /* This entry isn't spec'ed for GLES 2, but is needed for Mesa's
 533     * GLSL: */
 534    { GL_MAX_CLIP_PLANES, CONTEXT_INT(Const.MaxClipPlanes), NO_EXTRA },
 535
 536    /* GL_{APPLE,ARB,OES}_vertex_array_object */
 537    { GL_VERTEX_ARRAY_BINDING_APPLE, ARRAY_INT(Name), NO_EXTRA },
 538
 539    /* GL_EXT_texture_filter_anisotropic */
 540    { GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT,
 541      CONTEXT_FLOAT(Const.MaxTextureMaxAnisotropy),
 542      extra_EXT_texture_filter_anisotropic },
 543
 544 #if FEATURE_GL || FEATURE_ES1
 545    /* Enums in OpenGL and GLES1 */
 546    { 0, 0, TYPE_API_MASK, API_OPENGL_BIT | API_OPENGLES_BIT | API_OPENGL_CORE_BIT, NO_EXTRA },
 547    { GL_MAX_LIGHTS, CONTEXT_INT(Const.MaxLights), NO_EXTRA },
 548    { GL_LIGHT0, CONTEXT_BOOL(Light.Light[0].Enabled), NO_EXTRA },
 549    { GL_LIGHT1, CONTEXT_BOOL(Light.Light[1].Enabled), NO_EXTRA },
 550    { GL_LIGHT2, CONTEXT_BOOL(Light.Light[2].Enabled), NO_EXTRA },
 551    { GL_LIGHT3, CONTEXT_BOOL(Light.Light[3].Enabled), NO_EXTRA },
 552    { GL_LIGHT4, CONTEXT_BOOL(Light.Light[4].Enabled), NO_EXTRA },
 553    { GL_LIGHT5, CONTEXT_BOOL(Light.Light[5].Enabled), NO_EXTRA },
 554    { GL_LIGHT6, CONTEXT_BOOL(Light.Light[6].Enabled), NO_EXTRA },
 555    { GL_LIGHT7, CONTEXT_BOOL(Light.Light[7].Enabled), NO_EXTRA },
 556    { GL_LIGHTING, CONTEXT_BOOL(Light.Enabled), NO_EXTRA },
 557    { GL_LIGHT_MODEL_AMBIENT,
 558      CONTEXT_FIELD(Light.Model.Ambient[0], TYPE_FLOATN_4), NO_EXTRA },
 559    { GL_LIGHT_MODEL_TWO_SIDE, CONTEXT_BOOL(Light.Model.TwoSide), NO_EXTRA },
 560    { GL_ALPHA_TEST, CONTEXT_BOOL(Color.AlphaEnabled), NO_EXTRA },
 561    { GL_ALPHA_TEST_FUNC, CONTEXT_ENUM(Color.AlphaFunc), NO_EXTRA },
 562    { GL_ALPHA_TEST_REF, LOC_CUSTOM, TYPE_FLOATN, 0, extra_new_frag_clamp },
 563    { GL_BLEND_DST, CONTEXT_ENUM(Color.Blend[0].DstRGB), NO_EXTRA },
 564    { GL_CLIP_DISTANCE0, CONTEXT_BIT0(Transform.ClipPlanesEnabled), extra_valid_clip_distance },
 565    { GL_CLIP_DISTANCE1, CONTEXT_BIT1(Transform.ClipPlanesEnabled), extra_valid_clip_distance },
 566    { GL_CLIP_DISTANCE2, CONTEXT_BIT2(Transform.ClipPlanesEnabled), extra_valid_clip_distance },
 567    { GL_CLIP_DISTANCE3, CONTEXT_BIT3(Transform.ClipPlanesEnabled), extra_valid_clip_distance },
 568    { GL_CLIP_DISTANCE4, CONTEXT_BIT4(Transform.ClipPlanesEnabled), extra_valid_clip_distance },
 569    { GL_CLIP_DISTANCE5, CONTEXT_BIT5(Transform.ClipPlanesEnabled), extra_valid_clip_distance },
 570    { GL_CLIP_DISTANCE6, CONTEXT_BIT6(Transform.ClipPlanesEnabled), extra_valid_clip_distance },
 571    { GL_CLIP_DISTANCE7, CONTEXT_BIT7(Transform.ClipPlanesEnabled), extra_valid_clip_distance },
 572    { GL_COLOR_MATERIAL, CONTEXT_BOOL(Light.ColorMaterialEnabled), NO_EXTRA },
 573    { GL_CURRENT_COLOR,
 574      CONTEXT_FIELD(Current.Attrib[VERT_ATTRIB_COLOR0][0], TYPE_FLOATN_4),
 575      extra_flush_current },
 576    { GL_CURRENT_NORMAL,
 577      CONTEXT_FIELD(Current.Attrib[VERT_ATTRIB_NORMAL][0], TYPE_FLOATN_3),
 578      extra_flush_current },
 579    { GL_CURRENT_TEXTURE_COORDS, LOC_CUSTOM, TYPE_FLOAT_4, 0,
 580      extra_flush_current_valid_texture_unit },
 581    { GL_DISTANCE_ATTENUATION_EXT, CONTEXT_FLOAT3(Point.Params[0]), NO_EXTRA },
 582    { GL_FOG, CONTEXT_BOOL(Fog.Enabled), NO_EXTRA },
 583    { GL_FOG_COLOR, LOC_CUSTOM, TYPE_FLOATN_4, 0, extra_new_frag_clamp },
 584    { GL_FOG_DENSITY, CONTEXT_FLOAT(Fog.Density), NO_EXTRA },
 585    { GL_FOG_END, CONTEXT_FLOAT(Fog.End), NO_EXTRA },
 586    { GL_FOG_HINT, CONTEXT_ENUM(Hint.Fog), NO_EXTRA },
 587    { GL_FOG_MODE, CONTEXT_ENUM(Fog.Mode), NO_EXTRA },
 588    { GL_FOG_START, CONTEXT_FLOAT(Fog.Start), NO_EXTRA },
 589    { GL_LINE_SMOOTH, CONTEXT_BOOL(Line.SmoothFlag), NO_EXTRA },
 590    { GL_LINE_SMOOTH_HINT, CONTEXT_ENUM(Hint.LineSmooth), NO_EXTRA },
 591    { GL_LINE_WIDTH_RANGE, CONTEXT_FLOAT2(Const.MinLineWidthAA), NO_EXTRA },
 592    { GL_COLOR_LOGIC_OP, CONTEXT_BOOL(Color.ColorLogicOpEnabled), NO_EXTRA },
 593    { GL_LOGIC_OP_MODE, CONTEXT_ENUM(Color.LogicOp), NO_EXTRA },
 594    { GL_MATRIX_MODE, CONTEXT_ENUM(Transform.MatrixMode), NO_EXTRA },
 595    { GL_MAX_MODELVIEW_STACK_DEPTH, CONST(MAX_MODELVIEW_STACK_DEPTH), NO_EXTRA },
 596    { GL_MAX_PROJECTION_STACK_DEPTH, CONST(MAX_PROJECTION_STACK_DEPTH), NO_EXTRA },
 597    { GL_MAX_TEXTURE_STACK_DEPTH, CONST(MAX_TEXTURE_STACK_DEPTH), NO_EXTRA },
 598    { GL_MODELVIEW_MATRIX, CONTEXT_MATRIX(ModelviewMatrixStack.Top), NO_EXTRA },
 599    { GL_MODELVIEW_STACK_DEPTH, LOC_CUSTOM, TYPE_INT,
 600      offsetof(struct gl_context, ModelviewMatrixStack.Depth), NO_EXTRA },
 601    { GL_NORMALIZE, CONTEXT_BOOL(Transform.Normalize), NO_EXTRA },
 602    { GL_PACK_SKIP_IMAGES_EXT, CONTEXT_INT(Pack.SkipImages), NO_EXTRA },
 603    { GL_PERSPECTIVE_CORRECTION_HINT, CONTEXT_ENUM(Hint.PerspectiveCorrection), NO_EXTRA },
 604    { GL_POINT_SIZE, CONTEXT_FLOAT(Point.Size), NO_EXTRA },
 605    { GL_POINT_SIZE_RANGE, CONTEXT_FLOAT2(Const.MinPointSizeAA), NO_EXTRA },
 606    { GL_POINT_SMOOTH, CONTEXT_BOOL(Point.SmoothFlag), NO_EXTRA },
 607    { GL_POINT_SMOOTH_HINT, CONTEXT_ENUM(Hint.PointSmooth), NO_EXTRA },
 608    { GL_POINT_SIZE_MIN_EXT, CONTEXT_FLOAT(Point.MinSize), NO_EXTRA },
 609    { GL_POINT_SIZE_MAX_EXT, CONTEXT_FLOAT(Point.MaxSize), NO_EXTRA },
 610    { GL_POINT_FADE_THRESHOLD_SIZE_EXT, CONTEXT_FLOAT(Point.Threshold), NO_EXTRA },
 611    { GL_PROJECTION_MATRIX, CONTEXT_MATRIX(ProjectionMatrixStack.Top), NO_EXTRA },
 612    { GL_PROJECTION_STACK_DEPTH, LOC_CUSTOM, TYPE_INT,
 613      offsetof(struct gl_context, ProjectionMatrixStack.Depth), NO_EXTRA },
 614    { GL_RESCALE_NORMAL, CONTEXT_BOOL(Transform.RescaleNormals), NO_EXTRA },
 615    { GL_SHADE_MODEL, CONTEXT_ENUM(Light.ShadeModel), NO_EXTRA },
 616    { GL_TEXTURE_2D, LOC_CUSTOM, TYPE_BOOLEAN, 0, NO_EXTRA },
 617    { GL_TEXTURE_MATRIX, LOC_CUSTOM, TYPE_MATRIX, 0, extra_valid_texture_unit },
 618    { GL_TEXTURE_STACK_DEPTH, LOC_CUSTOM, TYPE_INT, 0,
 619      extra_valid_texture_unit  },
 620
 621    { GL_VERTEX_ARRAY, ARRAY_BOOL(VertexAttrib[VERT_ATTRIB_POS].Enabled), NO_EXTRA },
 622    { GL_VERTEX_ARRAY_SIZE, ARRAY_INT(VertexAttrib[VERT_ATTRIB_POS].Size), NO_EXTRA },
 623    { GL_VERTEX_ARRAY_TYPE, ARRAY_ENUM(VertexAttrib[VERT_ATTRIB_POS].Type), NO_EXTRA },
 624    { GL_VERTEX_ARRAY_STRIDE, ARRAY_INT(VertexAttrib[VERT_ATTRIB_POS].Stride), NO_EXTRA },
 625    { GL_NORMAL_ARRAY, ARRAY_BOOL(VertexAttrib[VERT_ATTRIB_NORMAL].Enabled), NO_EXTRA },
 626    { GL_NORMAL_ARRAY_TYPE, ARRAY_ENUM(VertexAttrib[VERT_ATTRIB_NORMAL].Type), NO_EXTRA },
 627    { GL_NORMAL_ARRAY_STRIDE, ARRAY_INT(VertexAttrib[VERT_ATTRIB_NORMAL].Stride), NO_EXTRA },
 628    { GL_COLOR_ARRAY, ARRAY_BOOL(VertexAttrib[VERT_ATTRIB_COLOR0].Enabled), NO_EXTRA },
 629    { GL_COLOR_ARRAY_SIZE, ARRAY_INT(VertexAttrib[VERT_ATTRIB_COLOR0].Size), NO_EXTRA },
 630    { GL_COLOR_ARRAY_TYPE, ARRAY_ENUM(VertexAttrib[VERT_ATTRIB_COLOR0].Type), NO_EXTRA },
 631    { GL_COLOR_ARRAY_STRIDE, ARRAY_INT(VertexAttrib[VERT_ATTRIB_COLOR0].Stride), NO_EXTRA },
 632    { GL_TEXTURE_COORD_ARRAY,
 633      LOC_CUSTOM, TYPE_BOOLEAN, offsetof(struct gl_client_array, Enabled), NO_EXTRA },
 634    { GL_TEXTURE_COORD_ARRAY_SIZE,
 635      LOC_CUSTOM, TYPE_INT, offsetof(struct gl_client_array, Size), NO_EXTRA },
 636    { GL_TEXTURE_COORD_ARRAY_TYPE,
 637      LOC_CUSTOM, TYPE_ENUM, offsetof(struct gl_client_array, Type), NO_EXTRA },
 638    { GL_TEXTURE_COORD_ARRAY_STRIDE,
 639      LOC_CUSTOM, TYPE_INT, offsetof(struct gl_client_array, Stride), NO_EXTRA },
 640
 641    /* GL_ARB_ES2_compatibility */
 642    { GL_SHADER_COMPILER, CONST(1), extra_ARB_ES2_compatibility },
 643    { GL_MAX_VARYING_VECTORS, CONTEXT_INT(Const.MaxVarying),
 644      extra_ARB_ES2_compatibility },
 645    { GL_MAX_VERTEX_UNIFORM_VECTORS, LOC_CUSTOM, TYPE_INT, 0,
 646      extra_ARB_ES2_compatibility },
 647    { GL_MAX_FRAGMENT_UNIFORM_VECTORS, LOC_CUSTOM, TYPE_INT, 0,
 648      extra_ARB_ES2_compatibility },
 649
 650    /* GL_ARB_multitexture */
 651    { GL_MAX_TEXTURE_UNITS, CONTEXT_INT(Const.MaxTextureUnits), NO_EXTRA },
 652    { GL_CLIENT_ACTIVE_TEXTURE, LOC_CUSTOM, TYPE_INT, 0, NO_EXTRA },
 653
 654    /* GL_ARB_texture_cube_map */
 655    { GL_TEXTURE_CUBE_MAP_ARB, LOC_CUSTOM, TYPE_BOOLEAN, 0, NO_EXTRA },
 656    /* S, T, and R are always set at the same time */
 657    { GL_TEXTURE_GEN_STR_OES, LOC_TEXUNIT, TYPE_BIT_0,
 658      offsetof(struct gl_texture_unit, TexGenEnabled), NO_EXTRA },
 659
 660    /* GL_ARB_multisample */
 661    { GL_MULTISAMPLE_ARB, CONTEXT_BOOL(Multisample.Enabled), NO_EXTRA },
 662    { GL_SAMPLE_ALPHA_TO_ONE_ARB, CONTEXT_BOOL(Multisample.SampleAlphaToOne), NO_EXTRA },
 663
 664    /* GL_ARB_vertex_buffer_object */
 665    { GL_VERTEX_ARRAY_BUFFER_BINDING_ARB, LOC_CUSTOM, TYPE_INT,
 666      offsetof(struct gl_array_object, VertexAttrib[VERT_ATTRIB_POS].BufferObj), NO_EXTRA },
 667    { GL_NORMAL_ARRAY_BUFFER_BINDING_ARB, LOC_CUSTOM, TYPE_INT,
 668      offsetof(struct gl_array_object, VertexAttrib[VERT_ATTRIB_NORMAL].BufferObj), NO_EXTRA },
 669    { GL_COLOR_ARRAY_BUFFER_BINDING_ARB, LOC_CUSTOM, TYPE_INT,
 670      offsetof(struct gl_array_object, VertexAttrib[VERT_ATTRIB_COLOR0].BufferObj), NO_EXTRA },
 671    { GL_TEXTURE_COORD_ARRAY_BUFFER_BINDING_ARB, LOC_CUSTOM, TYPE_INT, NO_OFFSET, NO_EXTRA },
 672
 673    /* GL_OES_point_sprite */
 674    { GL_POINT_SPRITE_NV,
 675      CONTEXT_BOOL(Point.PointSprite),
 676      extra_NV_point_sprite_ARB_point_sprite },
 677
 678    /* GL_ARB_fragment_shader */
 679    { GL_MAX_FRAGMENT_UNIFORM_COMPONENTS_ARB,
 680      CONTEXT_INT(Const.FragmentProgram.MaxUniformComponents),
 681      extra_ARB_fragment_shader },
 682
 683    /* GL_ARB_vertex_shader */
 684    { GL_MAX_VERTEX_UNIFORM_COMPONENTS_ARB,
 685      CONTEXT_INT(Const.VertexProgram.MaxUniformComponents),
 686      extra_ARB_vertex_shader },
 687    { GL_MAX_VARYING_FLOATS_ARB, LOC_CUSTOM, TYPE_INT, 0,
 688      extra_ARB_vertex_shader },
 689
 690    /* GL_EXT_texture_lod_bias */
 691    { GL_MAX_TEXTURE_LOD_BIAS_EXT, CONTEXT_FLOAT(Const.MaxTextureLodBias),
 692      NO_EXTRA },
 693 #endif /* FEATURE_GL || FEATURE_ES1 */
 694
 695 #if FEATURE_ES1
 696    { 0, 0, TYPE_API_MASK, API_OPENGLES_BIT },
 697    /* XXX: OES_matrix_get */
 698    { GL_MODELVIEW_MATRIX_FLOAT_AS_INT_BITS_OES },
 699    { GL_PROJECTION_MATRIX_FLOAT_AS_INT_BITS_OES },
 700    { GL_TEXTURE_MATRIX_FLOAT_AS_INT_BITS_OES },
 701
 702    /* OES_point_size_array */
 703    { GL_POINT_SIZE_ARRAY_OES, ARRAY_FIELD(VertexAttrib[VERT_ATTRIB_POINT_SIZE].Enabled, TYPE_BOOLEAN) },
 704    { GL_POINT_SIZE_ARRAY_TYPE_OES, ARRAY_FIELD(VertexAttrib[VERT_ATTRIB_POINT_SIZE].Type, TYPE_ENUM) },
 705    { GL_POINT_SIZE_ARRAY_STRIDE_OES, ARRAY_FIELD(VertexAttrib[VERT_ATTRIB_POINT_SIZE].Stride, TYPE_INT) },
 706    { GL_POINT_SIZE_ARRAY_BUFFER_BINDING_OES, LOC_CUSTOM, TYPE_INT, 0 },
 707 #endif /* FEATURE_ES1 */
 708
 709 #if FEATURE_GL || FEATURE_ES2
 710    { 0, 0, TYPE_API_MASK, API_OPENGL_BIT | API_OPENGL_CORE_BIT | API_OPENGLES2_BIT, NO_EXTRA },
 711    { GL_MAX_TEXTURE_COORDS_ARB, /* == GL_MAX_TEXTURE_COORDS_NV */
 712      CONTEXT_INT(Const.MaxTextureCoordUnits),
 713      extra_ARB_fragment_program_NV_fragment_program },
 714    { GL_PACK_IMAGE_HEIGHT_EXT, CONTEXT_INT(Pack.ImageHeight), NO_EXTRA },
 715    { GL_PACK_ROW_LENGTH, CONTEXT_INT(Pack.RowLength), NO_EXTRA },
 716    { GL_PACK_SKIP_PIXELS, CONTEXT_INT(Pack.SkipPixels), NO_EXTRA },
 717    { GL_PACK_SKIP_ROWS, CONTEXT_INT(Pack.SkipRows), NO_EXTRA },
 718    { GL_UNPACK_ROW_LENGTH, CONTEXT_INT(Unpack.RowLength), NO_EXTRA },
 719    { GL_UNPACK_SKIP_PIXELS, CONTEXT_INT(Unpack.SkipPixels), NO_EXTRA },
 720    { GL_UNPACK_SKIP_ROWS, CONTEXT_INT(Unpack.SkipRows), NO_EXTRA },
 721    { GL_UNPACK_SKIP_IMAGES_EXT, CONTEXT_INT(Unpack.SkipImages), NO_EXTRA },
 722    { GL_UNPACK_IMAGE_HEIGHT_EXT, CONTEXT_INT(Unpack.ImageHeight), NO_EXTRA },
 723
 724    /* GL_ARB_draw_buffers */
 725    { GL_MAX_DRAW_BUFFERS_ARB, CONTEXT_INT(Const.MaxDrawBuffers), NO_EXTRA },
 726
 727    /* GL_EXT_framebuffer_object / GL_NV_fbo_color_attachments */
 728    { GL_MAX_COLOR_ATTACHMENTS, CONTEXT_INT(Const.MaxColorAttachments),
 729      extra_EXT_framebuffer_object },
 730
 731    /* GL_ARB_draw_buffers / GL_NV_draw_buffers (for ES 2.0) */
 732    { GL_DRAW_BUFFER0_ARB, BUFFER_ENUM(ColorDrawBuffer[0]), NO_EXTRA },
 733    { GL_DRAW_BUFFER1_ARB, BUFFER_ENUM(ColorDrawBuffer[1]),
 734      extra_valid_draw_buffer },
 735    { GL_DRAW_BUFFER2_ARB, BUFFER_ENUM(ColorDrawBuffer[2]),
 736      extra_valid_draw_buffer },
 737    { GL_DRAW_BUFFER3_ARB, BUFFER_ENUM(ColorDrawBuffer[3]),
 738      extra_valid_draw_buffer },
 739    { GL_DRAW_BUFFER4_ARB, BUFFER_ENUM(ColorDrawBuffer[4]),
 740      extra_valid_draw_buffer },
 741    { GL_DRAW_BUFFER5_ARB, BUFFER_ENUM(ColorDrawBuffer[5]),
 742      extra_valid_draw_buffer },
 743    { GL_DRAW_BUFFER6_ARB, BUFFER_ENUM(ColorDrawBuffer[6]),
 744      extra_valid_draw_buffer },
 745    { GL_DRAW_BUFFER7_ARB, BUFFER_ENUM(ColorDrawBuffer[7]),
 746      extra_valid_draw_buffer },
 747
 748    { GL_BLEND_COLOR_EXT, LOC_CUSTOM, TYPE_FLOATN_4, 0, extra_new_frag_clamp },
 749    /* GL_ARB_fragment_program */
 750    { GL_MAX_TEXTURE_IMAGE_UNITS_ARB, /* == GL_MAX_TEXTURE_IMAGE_UNITS_NV */
 751      CONTEXT_INT(Const.MaxTextureImageUnits),
 752      extra_ARB_fragment_program_NV_fragment_program },
 753    { GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS_ARB,
 754      CONTEXT_INT(Const.MaxVertexTextureImageUnits), extra_ARB_vertex_shader },
 755    { GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS_ARB,
 756      CONTEXT_INT(Const.MaxCombinedTextureImageUnits),
 757      extra_ARB_vertex_shader },
 758
 759    /* GL_ARB_shader_objects
 760     * Actually, this token isn't part of GL_ARB_shader_objects, but is
 761     * close enough for now. */
 762    { GL_CURRENT_PROGRAM, LOC_CUSTOM, TYPE_INT, 0, extra_ARB_shader_objects },
 763
 764    /* OpenGL 2.0 */
 765    { GL_STENCIL_BACK_FUNC, CONTEXT_ENUM(Stencil.Function[1]), NO_EXTRA },
 766    { GL_STENCIL_BACK_VALUE_MASK, CONTEXT_INT(Stencil.ValueMask[1]), NO_EXTRA },
 767    { GL_STENCIL_BACK_WRITEMASK, CONTEXT_INT(Stencil.WriteMask[1]), NO_EXTRA },
 768    { GL_STENCIL_BACK_REF, CONTEXT_INT(Stencil.Ref[1]), NO_EXTRA },
 769    { GL_STENCIL_BACK_FAIL, CONTEXT_ENUM(Stencil.FailFunc[1]), NO_EXTRA },
 770    { GL_STENCIL_BACK_PASS_DEPTH_FAIL, CONTEXT_ENUM(Stencil.ZFailFunc[1]), NO_EXTRA },
 771    { GL_STENCIL_BACK_PASS_DEPTH_PASS, CONTEXT_ENUM(Stencil.ZPassFunc[1]), NO_EXTRA },
 772
 773    { GL_MAX_VERTEX_ATTRIBS_ARB,
 774      CONTEXT_INT(Const.VertexProgram.MaxAttribs),
 775      extra_ARB_vertex_program_api_es2 },
 776
 777    /* OES_texture_3D */
 778    { GL_TEXTURE_BINDING_3D, LOC_CUSTOM, TYPE_INT, TEXTURE_3D_INDEX, NO_EXTRA },
 779    { GL_MAX_3D_TEXTURE_SIZE, LOC_CUSTOM, TYPE_INT,
 780      offsetof(struct gl_context, Const.Max3DTextureLevels), NO_EXTRA },
 781
 782    /* GL_ARB_fragment_program/OES_standard_derivatives */
 783    { GL_FRAGMENT_SHADER_DERIVATIVE_HINT_ARB,
 784      CONTEXT_ENUM(Hint.FragmentShaderDerivative), extra_ARB_fragment_shader },
 785
 786    /* GL_NV_read_buffer */
 787    { GL_READ_BUFFER,
 788      LOC_CUSTOM, TYPE_ENUM, NO_OFFSET, extra_NV_read_buffer_api_gl },
 789
 790 #endif /* FEATURE_GL || FEATURE_ES2 */
 791
 792 #if FEATURE_ES1 || FEATURE_ES2
 793    { 0, 0, TYPE_API_MASK, API_OPENGLES | API_OPENGLES2_BIT, NO_EXTRA },
 794    /* GL_OES_EGL_image_external */
 795    { GL_TEXTURE_BINDING_EXTERNAL_OES, LOC_CUSTOM,
 796      TYPE_INT, TEXTURE_EXTERNAL_INDEX, extra_OES_EGL_image_external },
 797    { GL_TEXTURE_EXTERNAL_OES, LOC_CUSTOM,
 798      TYPE_BOOLEAN, 0, extra_OES_EGL_image_external },
 799 #endif
 800
 801 #if FEATURE_ES2
 802    /* Enums unique to OpenGL ES 2.0 */
 803    { 0, 0, TYPE_API_MASK, API_OPENGLES2_BIT, NO_EXTRA },
 804    { GL_MAX_FRAGMENT_UNIFORM_VECTORS, LOC_CUSTOM, TYPE_INT, 0, NO_EXTRA },
 805    { GL_MAX_VARYING_VECTORS, CONTEXT_INT(Const.MaxVarying), NO_EXTRA },
 806    { GL_MAX_VERTEX_UNIFORM_VECTORS, LOC_CUSTOM, TYPE_INT, 0, NO_EXTRA },
 807    { GL_SHADER_COMPILER, CONST(1), NO_EXTRA },
 808    /* OES_get_program_binary */
 809    { GL_NUM_SHADER_BINARY_FORMATS, CONST(0), NO_EXTRA },
 810    { GL_SHADER_BINARY_FORMATS, CONST(0), NO_EXTRA },
 811 #endif /* FEATURE_ES2 */
 812
 813 #if FEATURE_GL
 814    /* Remaining enums are only in OpenGL */
 815    { 0, 0, TYPE_API_MASK, API_OPENGL_BIT | API_OPENGL_CORE_BIT, NO_EXTRA },
 816    { GL_ACCUM_RED_BITS, BUFFER_INT(Visual.accumRedBits), NO_EXTRA },
 817    { GL_ACCUM_GREEN_BITS, BUFFER_INT(Visual.accumGreenBits), NO_EXTRA },
 818    { GL_ACCUM_BLUE_BITS, BUFFER_INT(Visual.accumBlueBits), NO_EXTRA },
 819    { GL_ACCUM_ALPHA_BITS, BUFFER_INT(Visual.accumAlphaBits), NO_EXTRA },
 820    { GL_ACCUM_CLEAR_VALUE, CONTEXT_FIELD(Accum.ClearColor[0], TYPE_FLOATN_4), NO_EXTRA },
 821    { GL_ALPHA_BIAS, CONTEXT_FLOAT(Pixel.AlphaBias), NO_EXTRA },
 822    { GL_ALPHA_SCALE, CONTEXT_FLOAT(Pixel.AlphaScale), NO_EXTRA },
 823    { GL_ATTRIB_STACK_DEPTH, CONTEXT_INT(AttribStackDepth), NO_EXTRA },
 824    { GL_AUTO_NORMAL, CONTEXT_BOOL(Eval.AutoNormal), NO_EXTRA },
 825    { GL_AUX_BUFFERS, BUFFER_INT(Visual.numAuxBuffers), NO_EXTRA },
 826    { GL_BLUE_BIAS, CONTEXT_FLOAT(Pixel.BlueBias), NO_EXTRA },
 827    { GL_BLUE_SCALE, CONTEXT_FLOAT(Pixel.BlueScale), NO_EXTRA },
 828    { GL_CLIENT_ATTRIB_STACK_DEPTH, CONTEXT_INT(ClientAttribStackDepth), NO_EXTRA },
 829    { GL_COLOR_MATERIAL_FACE, CONTEXT_ENUM(Light.ColorMaterialFace), NO_EXTRA },
 830    { GL_COLOR_MATERIAL_PARAMETER, CONTEXT_ENUM(Light.ColorMaterialMode), NO_EXTRA },
 831    { GL_CURRENT_INDEX,
 832      CONTEXT_FLOAT(Current.Attrib[VERT_ATTRIB_COLOR_INDEX][0]),
 833      extra_flush_current },
 834    { GL_CURRENT_RASTER_COLOR,
 835      CONTEXT_FIELD(Current.RasterColor[0], TYPE_FLOATN_4), NO_EXTRA },
 836    { GL_CURRENT_RASTER_DISTANCE, CONTEXT_FLOAT(Current.RasterDistance), NO_EXTRA },
 837    { GL_CURRENT_RASTER_INDEX, CONST(1), NO_EXTRA },
 838    { GL_CURRENT_RASTER_POSITION, CONTEXT_FLOAT4(Current.RasterPos[0]), NO_EXTRA },
 839    { GL_CURRENT_RASTER_SECONDARY_COLOR,
 840      CONTEXT_FIELD(Current.RasterSecondaryColor[0], TYPE_FLOATN_4), NO_EXTRA },
 841    { GL_CURRENT_RASTER_TEXTURE_COORDS, LOC_CUSTOM, TYPE_FLOAT_4, 0,
 842      extra_valid_texture_unit },
 843    { GL_CURRENT_RASTER_POSITION_VALID, CONTEXT_BOOL(Current.RasterPosValid), NO_EXTRA },
 844    { GL_DEPTH_BIAS, CONTEXT_FLOAT(Pixel.DepthBias), NO_EXTRA },
 845    { GL_DEPTH_SCALE, CONTEXT_FLOAT(Pixel.DepthScale), NO_EXTRA },
 846    { GL_DOUBLEBUFFER, BUFFER_INT(Visual.doubleBufferMode), NO_EXTRA },
 847    { GL_DRAW_BUFFER, BUFFER_ENUM(ColorDrawBuffer[0]), NO_EXTRA },
 848    { GL_EDGE_FLAG, LOC_CUSTOM, TYPE_BOOLEAN, 0, NO_EXTRA },
 849    { GL_FEEDBACK_BUFFER_SIZE, CONTEXT_INT(Feedback.BufferSize), NO_EXTRA },
 850    { GL_FEEDBACK_BUFFER_TYPE, CONTEXT_ENUM(Feedback.Type), NO_EXTRA },
 851    { GL_FOG_INDEX, CONTEXT_FLOAT(Fog.Index), NO_EXTRA },
 852    { GL_GREEN_BIAS, CONTEXT_FLOAT(Pixel.GreenBias), NO_EXTRA },
 853    { GL_GREEN_SCALE, CONTEXT_FLOAT(Pixel.GreenScale), NO_EXTRA },
 854    { GL_INDEX_BITS, BUFFER_INT(Visual.indexBits), extra_new_buffers },
 855    { GL_INDEX_CLEAR_VALUE, CONTEXT_INT(Color.ClearIndex), NO_EXTRA },
 856    { GL_INDEX_MODE, CONST(0) , NO_EXTRA},
 857    { GL_INDEX_OFFSET, CONTEXT_INT(Pixel.IndexOffset), NO_EXTRA },
 858    { GL_INDEX_SHIFT, CONTEXT_INT(Pixel.IndexShift), NO_EXTRA },
 859    { GL_INDEX_WRITEMASK, CONTEXT_INT(Color.IndexMask), NO_EXTRA },
 860    { GL_LIGHT_MODEL_COLOR_CONTROL, CONTEXT_ENUM(Light.Model.ColorControl), NO_EXTRA },
 861    { GL_LIGHT_MODEL_LOCAL_VIEWER, CONTEXT_BOOL(Light.Model.LocalViewer), NO_EXTRA },
 862    { GL_LINE_STIPPLE, CONTEXT_BOOL(Line.StippleFlag), NO_EXTRA },
 863    { GL_LINE_STIPPLE_PATTERN, LOC_CUSTOM, TYPE_INT, 0, NO_EXTRA },
 864    { GL_LINE_STIPPLE_REPEAT, CONTEXT_INT(Line.StippleFactor), NO_EXTRA },
 865    { GL_LINE_WIDTH_GRANULARITY, CONTEXT_FLOAT(Const.LineWidthGranularity), NO_EXTRA },
 866    { GL_LIST_BASE, CONTEXT_INT(List.ListBase), NO_EXTRA },
 867    { GL_LIST_INDEX, LOC_CUSTOM, TYPE_INT, 0, NO_EXTRA },
 868    { GL_LIST_MODE, LOC_CUSTOM, TYPE_ENUM, 0, NO_EXTRA },
 869    { GL_INDEX_LOGIC_OP, CONTEXT_BOOL(Color.IndexLogicOpEnabled), NO_EXTRA },
 870    { GL_MAP1_COLOR_4, CONTEXT_BOOL(Eval.Map1Color4), NO_EXTRA },
 871    { GL_MAP1_GRID_DOMAIN, CONTEXT_FLOAT2(Eval.MapGrid1u1), NO_EXTRA },
 872    { GL_MAP1_GRID_SEGMENTS, CONTEXT_INT(Eval.MapGrid1un), NO_EXTRA },
 873    { GL_MAP1_INDEX, CONTEXT_BOOL(Eval.Map1Index), NO_EXTRA },
 874    { GL_MAP1_NORMAL, CONTEXT_BOOL(Eval.Map1Normal), NO_EXTRA },
 875    { GL_MAP1_TEXTURE_COORD_1, CONTEXT_BOOL(Eval.Map1TextureCoord1), NO_EXTRA },
 876    { GL_MAP1_TEXTURE_COORD_2, CONTEXT_BOOL(Eval.Map1TextureCoord2), NO_EXTRA },
 877    { GL_MAP1_TEXTURE_COORD_3, CONTEXT_BOOL(Eval.Map1TextureCoord3), NO_EXTRA },
 878    { GL_MAP1_TEXTURE_COORD_4, CONTEXT_BOOL(Eval.Map1TextureCoord4), NO_EXTRA },
 879    { GL_MAP1_VERTEX_3, CONTEXT_BOOL(Eval.Map1Vertex3), NO_EXTRA },
 880    { GL_MAP1_VERTEX_4, CONTEXT_BOOL(Eval.Map1Vertex4), NO_EXTRA },
 881    { GL_MAP2_COLOR_4, CONTEXT_BOOL(Eval.Map2Color4), NO_EXTRA },
 882    { GL_MAP2_GRID_DOMAIN, LOC_CUSTOM, TYPE_FLOAT_4, 0, NO_EXTRA },
 883    { GL_MAP2_GRID_SEGMENTS, CONTEXT_INT2(Eval.MapGrid2un), NO_EXTRA },
 884    { GL_MAP2_INDEX, CONTEXT_BOOL(Eval.Map2Index), NO_EXTRA },
 885    { GL_MAP2_NORMAL, CONTEXT_BOOL(Eval.Map2Normal), NO_EXTRA },
 886    { GL_MAP2_TEXTURE_COORD_1, CONTEXT_BOOL(Eval.Map2TextureCoord1), NO_EXTRA },
 887    { GL_MAP2_TEXTURE_COORD_2, CONTEXT_BOOL(Eval.Map2TextureCoord2), NO_EXTRA },
 888    { GL_MAP2_TEXTURE_COORD_3, CONTEXT_BOOL(Eval.Map2TextureCoord3), NO_EXTRA },
 889    { GL_MAP2_TEXTURE_COORD_4, CONTEXT_BOOL(Eval.Map2TextureCoord4), NO_EXTRA },
 890    { GL_MAP2_VERTEX_3, CONTEXT_BOOL(Eval.Map2Vertex3), NO_EXTRA },
 891    { GL_MAP2_VERTEX_4, CONTEXT_BOOL(Eval.Map2Vertex4), NO_EXTRA },
 892    { GL_MAP_COLOR, CONTEXT_BOOL(Pixel.MapColorFlag), NO_EXTRA },
 893    { GL_MAP_STENCIL, CONTEXT_BOOL(Pixel.MapStencilFlag), NO_EXTRA },
 894    { GL_MAX_ATTRIB_STACK_DEPTH, CONST(MAX_ATTRIB_STACK_DEPTH), NO_EXTRA },
 895    { GL_MAX_CLIENT_ATTRIB_STACK_DEPTH, CONST(MAX_CLIENT_ATTRIB_STACK_DEPTH), NO_EXTRA },
 896
 897    { GL_MAX_EVAL_ORDER, CONST(MAX_EVAL_ORDER), NO_EXTRA },
 898    { GL_MAX_LIST_NESTING, CONST(MAX_LIST_NESTING), NO_EXTRA },
 899    { GL_MAX_NAME_STACK_DEPTH, CONST(MAX_NAME_STACK_DEPTH), NO_EXTRA },
 900    { GL_MAX_PIXEL_MAP_TABLE, CONST(MAX_PIXEL_MAP_TABLE), NO_EXTRA },
 901    { GL_NAME_STACK_DEPTH, CONTEXT_INT(Select.NameStackDepth), NO_EXTRA },
 902    { GL_PACK_LSB_FIRST, CONTEXT_BOOL(Pack.LsbFirst), NO_EXTRA },
 903    { GL_PACK_SWAP_BYTES, CONTEXT_BOOL(Pack.SwapBytes), NO_EXTRA },
 904    { GL_PACK_INVERT_MESA, CONTEXT_BOOL(Pack.Invert), NO_EXTRA },
 905    { GL_PIXEL_MAP_A_TO_A_SIZE, CONTEXT_INT(PixelMaps.AtoA.Size), NO_EXTRA },
 906    { GL_PIXEL_MAP_B_TO_B_SIZE, CONTEXT_INT(PixelMaps.BtoB.Size), NO_EXTRA },
 907    { GL_PIXEL_MAP_G_TO_G_SIZE, CONTEXT_INT(PixelMaps.GtoG.Size), NO_EXTRA },
 908    { GL_PIXEL_MAP_I_TO_A_SIZE, CONTEXT_INT(PixelMaps.ItoA.Size), NO_EXTRA },
 909    { GL_PIXEL_MAP_I_TO_B_SIZE, CONTEXT_INT(PixelMaps.ItoB.Size), NO_EXTRA },
 910    { GL_PIXEL_MAP_I_TO_G_SIZE, CONTEXT_INT(PixelMaps.ItoG.Size), NO_EXTRA },
 911    { GL_PIXEL_MAP_I_TO_I_SIZE, CONTEXT_INT(PixelMaps.ItoI.Size), NO_EXTRA },
 912    { GL_PIXEL_MAP_I_TO_R_SIZE, CONTEXT_INT(PixelMaps.ItoR.Size), NO_EXTRA },
 913    { GL_PIXEL_MAP_R_TO_R_SIZE, CONTEXT_INT(PixelMaps.RtoR.Size), NO_EXTRA },
 914    { GL_PIXEL_MAP_S_TO_S_SIZE, CONTEXT_INT(PixelMaps.StoS.Size), NO_EXTRA },
 915    { GL_POINT_SIZE_GRANULARITY, CONTEXT_FLOAT(Const.PointSizeGranularity), NO_EXTRA },
 916    { GL_POLYGON_MODE, CONTEXT_ENUM2(Polygon.FrontMode), NO_EXTRA },
 917    { GL_POLYGON_OFFSET_BIAS_EXT, CONTEXT_FLOAT(Polygon.OffsetUnits), NO_EXTRA },
 918    { GL_POLYGON_OFFSET_POINT, CONTEXT_BOOL(Polygon.OffsetPoint), NO_EXTRA },
 919    { GL_POLYGON_OFFSET_LINE, CONTEXT_BOOL(Polygon.OffsetLine), NO_EXTRA },
 920    { GL_POLYGON_SMOOTH, CONTEXT_BOOL(Polygon.SmoothFlag), NO_EXTRA },
 921    { GL_POLYGON_SMOOTH_HINT, CONTEXT_ENUM(Hint.PolygonSmooth), NO_EXTRA },
 922    { GL_POLYGON_STIPPLE, CONTEXT_BOOL(Polygon.StippleFlag), NO_EXTRA },
 923    { GL_RED_BIAS, CONTEXT_FLOAT(Pixel.RedBias), NO_EXTRA },
 924    { GL_RED_SCALE, CONTEXT_FLOAT(Pixel.RedScale), NO_EXTRA },
 925    { GL_RENDER_MODE, CONTEXT_ENUM(RenderMode), NO_EXTRA },
 926    { GL_RGBA_MODE, CONST(1), NO_EXTRA },
 927    { GL_SELECTION_BUFFER_SIZE, CONTEXT_INT(Select.BufferSize), NO_EXTRA },
 928
 929    { GL_STEREO, BUFFER_INT(Visual.stereoMode), NO_EXTRA },
 930
 931    { GL_TEXTURE_1D, LOC_CUSTOM, TYPE_BOOLEAN, NO_OFFSET, NO_EXTRA },
 932    { GL_TEXTURE_3D, LOC_CUSTOM, TYPE_BOOLEAN, NO_OFFSET, NO_EXTRA },
 933    { GL_TEXTURE_1D_ARRAY_EXT, LOC_CUSTOM, TYPE_BOOLEAN, NO_OFFSET, NO_EXTRA },
 934    { GL_TEXTURE_2D_ARRAY_EXT, LOC_CUSTOM, TYPE_BOOLEAN, NO_OFFSET, NO_EXTRA },
 935
 936    { GL_TEXTURE_BINDING_1D, LOC_CUSTOM, TYPE_INT, TEXTURE_1D_INDEX, NO_EXTRA },
 937    { GL_TEXTURE_BINDING_1D_ARRAY, LOC_CUSTOM, TYPE_INT,
 938      TEXTURE_1D_ARRAY_INDEX, extra_MESA_texture_array },
 939    { GL_TEXTURE_BINDING_2D_ARRAY, LOC_CUSTOM, TYPE_INT,
 940      TEXTURE_1D_ARRAY_INDEX, extra_MESA_texture_array },
 941    { GL_MAX_ARRAY_TEXTURE_LAYERS_EXT,
 942      CONTEXT_INT(Const.MaxArrayTextureLayers), extra_MESA_texture_array },
 943
 944    { GL_TEXTURE_GEN_S, LOC_TEXUNIT, TYPE_BIT_0,
 945      offsetof(struct gl_texture_unit, TexGenEnabled), NO_EXTRA },
 946    { GL_TEXTURE_GEN_T, LOC_TEXUNIT, TYPE_BIT_1,
 947      offsetof(struct gl_texture_unit, TexGenEnabled), NO_EXTRA },
 948    { GL_TEXTURE_GEN_R, LOC_TEXUNIT, TYPE_BIT_2,
 949      offsetof(struct gl_texture_unit, TexGenEnabled), NO_EXTRA },
 950    { GL_TEXTURE_GEN_Q, LOC_TEXUNIT, TYPE_BIT_3,
 951      offsetof(struct gl_texture_unit, TexGenEnabled), NO_EXTRA },
 952    { GL_UNPACK_LSB_FIRST, CONTEXT_BOOL(Unpack.LsbFirst), NO_EXTRA },
 953    { GL_UNPACK_SWAP_BYTES, CONTEXT_BOOL(Unpack.SwapBytes), NO_EXTRA },
 954    { GL_ZOOM_X, CONTEXT_FLOAT(Pixel.ZoomX), NO_EXTRA },
 955    { GL_ZOOM_Y, CONTEXT_FLOAT(Pixel.ZoomY), NO_EXTRA },
 956
 957    /* Vertex arrays */
 958    { GL_VERTEX_ARRAY_COUNT_EXT, CONST(0), NO_EXTRA },
 959    { GL_NORMAL_ARRAY_COUNT_EXT, CONST(0), NO_EXTRA },
 960    { GL_COLOR_ARRAY_COUNT_EXT, CONST(0), NO_EXTRA },
 961    { GL_INDEX_ARRAY, ARRAY_BOOL(VertexAttrib[VERT_ATTRIB_COLOR_INDEX].Enabled), NO_EXTRA },
 962    { GL_INDEX_ARRAY_TYPE, ARRAY_ENUM(VertexAttrib[VERT_ATTRIB_COLOR_INDEX].Type), NO_EXTRA },
 963    { GL_INDEX_ARRAY_STRIDE, ARRAY_INT(VertexAttrib[VERT_ATTRIB_COLOR_INDEX].Stride), NO_EXTRA },
 964    { GL_INDEX_ARRAY_COUNT_EXT, CONST(0), NO_EXTRA },
 965    { GL_TEXTURE_COORD_ARRAY_COUNT_EXT, CONST(0), NO_EXTRA },
 966    { GL_EDGE_FLAG_ARRAY, ARRAY_BOOL(VertexAttrib[VERT_ATTRIB_EDGEFLAG].Enabled), NO_EXTRA },
 967    { GL_EDGE_FLAG_ARRAY_STRIDE, ARRAY_INT(VertexAttrib[VERT_ATTRIB_EDGEFLAG].Stride), NO_EXTRA },
 968    { GL_EDGE_FLAG_ARRAY_COUNT_EXT, CONST(0), NO_EXTRA },
 969
 970    /* GL_ARB_texture_compression */
 971    { GL_TEXTURE_COMPRESSION_HINT_ARB, CONTEXT_INT(Hint.TextureCompression), NO_EXTRA },
 972
 973    /* GL_EXT_compiled_vertex_array */
 974    { GL_ARRAY_ELEMENT_LOCK_FIRST_EXT, CONTEXT_INT(Array.LockFirst),
 975      extra_EXT_compiled_vertex_array },
 976    { GL_ARRAY_ELEMENT_LOCK_COUNT_EXT, CONTEXT_INT(Array.LockCount),
 977      extra_EXT_compiled_vertex_array },
 978
 979    /* GL_ARB_transpose_matrix */
 980    { GL_TRANSPOSE_MODELVIEW_MATRIX_ARB,
 981      CONTEXT_MATRIX_T(ModelviewMatrixStack), NO_EXTRA },
 982    { GL_TRANSPOSE_PROJECTION_MATRIX_ARB,
 983      CONTEXT_MATRIX_T(ProjectionMatrixStack.Top), NO_EXTRA },
 984    { GL_TRANSPOSE_TEXTURE_MATRIX_ARB, CONTEXT_MATRIX_T(TextureMatrixStack), NO_EXTRA },
 985
 986    /* GL_EXT_secondary_color */
 987    { GL_COLOR_SUM_EXT, CONTEXT_BOOL(Fog.ColorSumEnabled),
 988      extra_EXT_secondary_color_ARB_vertex_program },
 989    { GL_CURRENT_SECONDARY_COLOR_EXT,
 990      CONTEXT_FIELD(Current.Attrib[VERT_ATTRIB_COLOR1][0], TYPE_FLOATN_4),
 991      extra_EXT_secondary_color_flush_current },
 992    { GL_SECONDARY_COLOR_ARRAY_EXT, ARRAY_BOOL(VertexAttrib[VERT_ATTRIB_COLOR1].Enabled),
 993      extra_EXT_secondary_color },
 994    { GL_SECONDARY_COLOR_ARRAY_TYPE_EXT, ARRAY_ENUM(VertexAttrib[VERT_ATTRIB_COLOR1].Type),
 995      extra_EXT_secondary_color },
 996    { GL_SECONDARY_COLOR_ARRAY_STRIDE_EXT, ARRAY_INT(VertexAttrib[VERT_ATTRIB_COLOR1].Stride),
 997      extra_EXT_secondary_color },
 998    { GL_SECONDARY_COLOR_ARRAY_SIZE_EXT, ARRAY_INT(VertexAttrib[VERT_ATTRIB_COLOR1].Size),
 999      extra_EXT_secondary_color },
1000
1001    /* GL_EXT_fog_coord */
1002    { GL_CURRENT_FOG_COORDINATE_EXT,
1003      CONTEXT_FLOAT(Current.Attrib[VERT_ATTRIB_FOG][0]),
1004      extra_EXT_fog_coord_flush_current },
1005    { GL_FOG_COORDINATE_ARRAY_EXT, ARRAY_BOOL(VertexAttrib[VERT_ATTRIB_FOG].Enabled),
1006      extra_EXT_fog_coord },
1007    { GL_FOG_COORDINATE_ARRAY_TYPE_EXT, ARRAY_ENUM(VertexAttrib[VERT_ATTRIB_FOG].Type),
1008      extra_EXT_fog_coord },
1009    { GL_FOG_COORDINATE_ARRAY_STRIDE_EXT, ARRAY_INT(VertexAttrib[VERT_ATTRIB_FOG].Stride),
1010      extra_EXT_fog_coord },
1011    { GL_FOG_COORDINATE_SOURCE_EXT, CONTEXT_ENUM(Fog.FogCoordinateSource),
1012      extra_EXT_fog_coord },
1013
1014    /* GL_NV_fog_distance */
1015    { GL_FOG_DISTANCE_MODE_NV, CONTEXT_ENUM(Fog.FogDistanceMode),
1016      extra_NV_fog_distance },
1017
1018    /* GL_IBM_rasterpos_clip */
1019    { GL_RASTER_POSITION_UNCLIPPED_IBM,
1020      CONTEXT_BOOL(Transform.RasterPositionUnclipped),
1021      extra_IBM_rasterpos_clip },
1022
1023    /* GL_NV_point_sprite */
1024    { GL_POINT_SPRITE_R_MODE_NV,
1025      CONTEXT_ENUM(Point.SpriteRMode), extra_NV_point_sprite },
1026    { GL_POINT_SPRITE_COORD_ORIGIN, CONTEXT_ENUM(Point.SpriteOrigin),
1027      extra_NV_point_sprite_ARB_point_sprite },
1028
1029    /* GL_NV_vertex_program */
1030    { GL_VERTEX_PROGRAM_BINDING_NV, LOC_CUSTOM, TYPE_INT, 0,
1031      extra_NV_vertex_program },
1032    { GL_VERTEX_ATTRIB_ARRAY0_NV, ARRAY_BOOL(VertexAttrib[VERT_ATTRIB_GENERIC(0)].Enabled),
1033      extra_NV_vertex_program },
1034    { GL_VERTEX_ATTRIB_ARRAY1_NV, ARRAY_BOOL(VertexAttrib[VERT_ATTRIB_GENERIC(1)].Enabled),
1035      extra_NV_vertex_program },
1036    { GL_VERTEX_ATTRIB_ARRAY2_NV, ARRAY_BOOL(VertexAttrib[VERT_ATTRIB_GENERIC(2)].Enabled),
1037      extra_NV_vertex_program },
1038    { GL_VERTEX_ATTRIB_ARRAY3_NV, ARRAY_BOOL(VertexAttrib[VERT_ATTRIB_GENERIC(3)].Enabled),
1039      extra_NV_vertex_program },
1040    { GL_VERTEX_ATTRIB_ARRAY4_NV, ARRAY_BOOL(VertexAttrib[VERT_ATTRIB_GENERIC(4)].Enabled),
1041      extra_NV_vertex_program },
1042    { GL_VERTEX_ATTRIB_ARRAY5_NV, ARRAY_BOOL(VertexAttrib[VERT_ATTRIB_GENERIC(5)].Enabled),
1043      extra_NV_vertex_program },
1044    { GL_VERTEX_ATTRIB_ARRAY6_NV, ARRAY_BOOL(VertexAttrib[VERT_ATTRIB_GENERIC(6)].Enabled),
1045      extra_NV_vertex_program },
1046    { GL_VERTEX_ATTRIB_ARRAY7_NV, ARRAY_BOOL(VertexAttrib[VERT_ATTRIB_GENERIC(7)].Enabled),
1047      extra_NV_vertex_program },
1048    { GL_VERTEX_ATTRIB_ARRAY8_NV, ARRAY_BOOL(VertexAttrib[VERT_ATTRIB_GENERIC(8)].Enabled),
1049      extra_NV_vertex_program },
1050    { GL_VERTEX_ATTRIB_ARRAY9_NV, ARRAY_BOOL(VertexAttrib[VERT_ATTRIB_GENERIC(9)].Enabled),
1051      extra_NV_vertex_program },
1052    { GL_VERTEX_ATTRIB_ARRAY10_NV, ARRAY_BOOL(VertexAttrib[VERT_ATTRIB_GENERIC(10)].Enabled),
1053      extra_NV_vertex_program },
1054    { GL_VERTEX_ATTRIB_ARRAY11_NV, ARRAY_BOOL(VertexAttrib[VERT_ATTRIB_GENERIC(11)].Enabled),
1055      extra_NV_vertex_program },
1056    { GL_VERTEX_ATTRIB_ARRAY12_NV, ARRAY_BOOL(VertexAttrib[VERT_ATTRIB_GENERIC(12)].Enabled),
1057      extra_NV_vertex_program },
1058    { GL_VERTEX_ATTRIB_ARRAY13_NV, ARRAY_BOOL(VertexAttrib[VERT_ATTRIB_GENERIC(13)].Enabled),
1059      extra_NV_vertex_program },
1060    { GL_VERTEX_ATTRIB_ARRAY14_NV, ARRAY_BOOL(VertexAttrib[VERT_ATTRIB_GENERIC(14)].Enabled),
1061      extra_NV_vertex_program },
1062    { GL_VERTEX_ATTRIB_ARRAY15_NV, ARRAY_BOOL(VertexAttrib[VERT_ATTRIB_GENERIC(15)].Enabled),
1063      extra_NV_vertex_program },
1064    { GL_MAP1_VERTEX_ATTRIB0_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[0]),
1065      extra_NV_vertex_program },
1066    { GL_MAP1_VERTEX_ATTRIB1_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[1]),
1067      extra_NV_vertex_program },
1068    { GL_MAP1_VERTEX_ATTRIB2_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[2]),
1069      extra_NV_vertex_program },
1070    { GL_MAP1_VERTEX_ATTRIB3_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[3]),
1071      extra_NV_vertex_program },
1072    { GL_MAP1_VERTEX_ATTRIB4_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[4]),
1073      extra_NV_vertex_program },
1074    { GL_MAP1_VERTEX_ATTRIB5_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[5]),
1075      extra_NV_vertex_program },
1076    { GL_MAP1_VERTEX_ATTRIB6_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[6]),
1077      extra_NV_vertex_program },
1078    { GL_MAP1_VERTEX_ATTRIB7_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[7]),
1079      extra_NV_vertex_program },
1080    { GL_MAP1_VERTEX_ATTRIB8_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[8]),
1081      extra_NV_vertex_program },
1082    { GL_MAP1_VERTEX_ATTRIB9_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[9]),
1083      extra_NV_vertex_program },
1084    { GL_MAP1_VERTEX_ATTRIB10_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[10]),
1085      extra_NV_vertex_program },
1086    { GL_MAP1_VERTEX_ATTRIB11_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[11]),
1087      extra_NV_vertex_program },
1088    { GL_MAP1_VERTEX_ATTRIB12_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[12]),
1089      extra_NV_vertex_program },
1090    { GL_MAP1_VERTEX_ATTRIB13_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[13]),
1091      extra_NV_vertex_program },
1092    { GL_MAP1_VERTEX_ATTRIB14_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[14]),
1093      extra_NV_vertex_program },
1094    { GL_MAP1_VERTEX_ATTRIB15_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[15]),
1095      extra_NV_vertex_program },
1096
1097    /* GL_NV_fragment_program */
1098    { GL_FRAGMENT_PROGRAM_NV, CONTEXT_BOOL(FragmentProgram.Enabled),
1099      extra_NV_fragment_program },
1100    { GL_FRAGMENT_PROGRAM_BINDING_NV, LOC_CUSTOM, TYPE_INT, 0,
1101      extra_NV_fragment_program },
1102    { GL_MAX_FRAGMENT_PROGRAM_LOCAL_PARAMETERS_NV,
1103      CONST(MAX_NV_FRAGMENT_PROGRAM_PARAMS),
1104      extra_NV_fragment_program },
1105
1106    /* GL_NV_texture_rectangle */
1107    { GL_TEXTURE_RECTANGLE_NV,
1108      LOC_CUSTOM, TYPE_BOOLEAN, 0, extra_NV_texture_rectangle },
1109    { GL_TEXTURE_BINDING_RECTANGLE_NV,
1110      LOC_CUSTOM, TYPE_INT, TEXTURE_RECT_INDEX, extra_NV_texture_rectangle },
1111    { GL_MAX_RECTANGLE_TEXTURE_SIZE_NV,
1112      CONTEXT_INT(Const.MaxTextureRectSize), extra_NV_texture_rectangle },
1113
1114    /* GL_EXT_stencil_two_side */
1115    { GL_STENCIL_TEST_TWO_SIDE_EXT, CONTEXT_BOOL(Stencil.TestTwoSide),
1116          extra_EXT_stencil_two_side },
1117    { GL_ACTIVE_STENCIL_FACE_EXT, LOC_CUSTOM, TYPE_ENUM, NO_OFFSET, NO_EXTRA },
1118
1119    /* GL_NV_light_max_exponent */
1120    { GL_MAX_SHININESS_NV, CONTEXT_FLOAT(Const.MaxShininess),
1121      extra_NV_light_max_exponent },
1122    { GL_MAX_SPOT_EXPONENT_NV, CONTEXT_FLOAT(Const.MaxSpotExponent),
1123      extra_NV_light_max_exponent },
1124
1125    /* GL_NV_primitive_restart */
1126    { GL_PRIMITIVE_RESTART_NV, CONTEXT_BOOL(Array.PrimitiveRestart),
1127      extra_NV_primitive_restart },
1128    { GL_PRIMITIVE_RESTART_INDEX_NV, CONTEXT_INT(Array.RestartIndex),
1129      extra_NV_primitive_restart },
1130
1131    /* GL_ARB_vertex_buffer_object */
1132    { GL_INDEX_ARRAY_BUFFER_BINDING_ARB, LOC_CUSTOM, TYPE_INT,
1133      offsetof(struct gl_array_object, VertexAttrib[VERT_ATTRIB_COLOR_INDEX].BufferObj), NO_EXTRA },
1134    { GL_EDGE_FLAG_ARRAY_BUFFER_BINDING_ARB, LOC_CUSTOM, TYPE_INT,
1135      offsetof(struct gl_array_object, VertexAttrib[VERT_ATTRIB_EDGEFLAG].BufferObj), NO_EXTRA },
1136    { GL_SECONDARY_COLOR_ARRAY_BUFFER_BINDING_ARB, LOC_CUSTOM, TYPE_INT,
1137      offsetof(struct gl_array_object, VertexAttrib[VERT_ATTRIB_COLOR1].BufferObj), NO_EXTRA },
1138    { GL_FOG_COORDINATE_ARRAY_BUFFER_BINDING_ARB, LOC_CUSTOM, TYPE_INT,
1139      offsetof(struct gl_array_object, VertexAttrib[VERT_ATTRIB_FOG].BufferObj), NO_EXTRA },
1140
1141    /* GL_EXT_pixel_buffer_object */
1142    { GL_PIXEL_PACK_BUFFER_BINDING_EXT, LOC_CUSTOM, TYPE_INT, 0,
1143      extra_EXT_pixel_buffer_object },
1144    { GL_PIXEL_UNPACK_BUFFER_BINDING_EXT, LOC_CUSTOM, TYPE_INT, 0,
1145      extra_EXT_pixel_buffer_object },
1146
1147    /* GL_ARB_vertex_program */
1148    { GL_VERTEX_PROGRAM_ARB, /* == GL_VERTEX_PROGRAM_NV */
1149      CONTEXT_BOOL(VertexProgram.Enabled),
1150      extra_ARB_vertex_program_NV_vertex_program },
1151    { GL_VERTEX_PROGRAM_POINT_SIZE_ARB, /* == GL_VERTEX_PROGRAM_POINT_SIZE_NV*/
1152      CONTEXT_BOOL(VertexProgram.PointSizeEnabled),
1153      extra_ARB_vertex_program_NV_vertex_program },
1154    { GL_VERTEX_PROGRAM_TWO_SIDE_ARB, /* == GL_VERTEX_PROGRAM_TWO_SIDE_NV */
1155      CONTEXT_BOOL(VertexProgram.TwoSideEnabled),
1156      extra_ARB_vertex_program_NV_vertex_program },
1157    { GL_MAX_PROGRAM_MATRIX_STACK_DEPTH_ARB, /* == GL_MAX_TRACK_MATRIX_STACK_DEPTH_NV */
1158      CONTEXT_INT(Const.MaxProgramMatrixStackDepth),
1159      extra_ARB_vertex_program_ARB_fragment_program_NV_vertex_program },
1160    { GL_MAX_PROGRAM_MATRICES_ARB, /* == GL_MAX_TRACK_MATRICES_NV */
1161      CONTEXT_INT(Const.MaxProgramMatrices),
1162      extra_ARB_vertex_program_ARB_fragment_program_NV_vertex_program },
1163    { GL_CURRENT_MATRIX_STACK_DEPTH_ARB, /* == GL_CURRENT_MATRIX_STACK_DEPTH_NV */
1164      LOC_CUSTOM, TYPE_INT, 0,
1165      extra_ARB_vertex_program_ARB_fragment_program_NV_vertex_program },
1166
1167    { GL_CURRENT_MATRIX_ARB, /* == GL_CURRENT_MATRIX_NV */
1168      LOC_CUSTOM, TYPE_MATRIX, 0,
1169      extra_ARB_vertex_program_ARB_fragment_program_NV_vertex_program },
1170    { GL_TRANSPOSE_CURRENT_MATRIX_ARB, /* == GL_CURRENT_MATRIX_NV */
1171      LOC_CUSTOM, TYPE_MATRIX, 0,
1172      extra_ARB_vertex_program_ARB_fragment_program },
1173
1174    { GL_PROGRAM_ERROR_POSITION_ARB, /* == GL_PROGRAM_ERROR_POSITION_NV */
1175      CONTEXT_INT(Program.ErrorPos),
1176      extra_NV_vertex_program_ARB_vertex_program_ARB_fragment_program_NV_vertex_program },
1177
1178    /* GL_ARB_fragment_program */
1179    { GL_FRAGMENT_PROGRAM_ARB, CONTEXT_BOOL(FragmentProgram.Enabled),
1180      extra_ARB_fragment_program },
1181
1182    /* GL_EXT_depth_bounds_test */
1183    { GL_DEPTH_BOUNDS_TEST_EXT, CONTEXT_BOOL(Depth.BoundsTest),
1184      extra_EXT_depth_bounds_test },
1185    { GL_DEPTH_BOUNDS_EXT, CONTEXT_FLOAT2(Depth.BoundsMin),
1186      extra_EXT_depth_bounds_test },
1187
1188    /* GL_ARB_depth_clamp*/
1189    { GL_DEPTH_CLAMP, CONTEXT_BOOL(Transform.DepthClamp),
1190      extra_ARB_depth_clamp },
1191
1192    /* GL_ATI_fragment_shader */
1193    { GL_NUM_FRAGMENT_REGISTERS_ATI, CONST(6), extra_ATI_fragment_shader },
1194    { GL_NUM_FRAGMENT_CONSTANTS_ATI, CONST(8), extra_ATI_fragment_shader },
1195    { GL_NUM_PASSES_ATI, CONST(2), extra_ATI_fragment_shader },
1196    { GL_NUM_INSTRUCTIONS_PER_PASS_ATI, CONST(8), extra_ATI_fragment_shader },
1197    { GL_NUM_INSTRUCTIONS_TOTAL_ATI, CONST(16), extra_ATI_fragment_shader },
1198    { GL_COLOR_ALPHA_PAIRING_ATI, CONST(GL_TRUE), extra_ATI_fragment_shader },
1199    { GL_NUM_LOOPBACK_COMPONENTS_ATI, CONST(3), extra_ATI_fragment_shader },
1200    { GL_NUM_INPUT_INTERPOLATOR_COMPONENTS_ATI,
1201      CONST(3), extra_ATI_fragment_shader },
1202
1203    /* GL_EXT_framebuffer_blit
1204     * NOTE: GL_DRAW_FRAMEBUFFER_BINDING_EXT == GL_FRAMEBUFFER_BINDING_EXT */
1205    { GL_READ_FRAMEBUFFER_BINDING_EXT, LOC_CUSTOM, TYPE_INT, 0,
1206      extra_EXT_framebuffer_blit },
1207
1208    /* GL_EXT_provoking_vertex */
1209    { GL_PROVOKING_VERTEX_EXT,
1210      CONTEXT_ENUM(Light.ProvokingVertex), extra_EXT_provoking_vertex },
1211    { GL_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION_EXT,
1212      CONTEXT_BOOL(Const.QuadsFollowProvokingVertexConvention),
1213      extra_EXT_provoking_vertex },
1214
1215    /* GL_ARB_framebuffer_object */
1216    { GL_MAX_SAMPLES, CONTEXT_INT(Const.MaxSamples),
1217      extra_ARB_framebuffer_object_EXT_framebuffer_multisample },
1218
1219    /* GL_ARB_seamless_cube_map */
1220    { GL_TEXTURE_CUBE_MAP_SEAMLESS,
1221      CONTEXT_BOOL(Texture.CubeMapSeamless), extra_ARB_seamless_cube_map },
1222
1223    /* GL_ARB_sync */
1224    { GL_MAX_SERVER_WAIT_TIMEOUT,
1225      CONTEXT_INT64(Const.MaxServerWaitTimeout), extra_ARB_sync },
1226
1227    /* GL_EXT_texture_integer */
1228    { GL_RGBA_INTEGER_MODE_EXT, BUFFER_BOOL(_IntegerColor),
1229      extra_EXT_texture_integer },
1230
1231    /* GL_EXT_transform_feedback */
1232    { GL_TRANSFORM_FEEDBACK_BUFFER_BINDING, LOC_CUSTOM, TYPE_INT, 0,
1233      extra_EXT_transform_feedback },
1234    { GL_RASTERIZER_DISCARD, CONTEXT_BOOL(RasterDiscard),
1235      extra_EXT_transform_feedback },
1236    { GL_MAX_TRANSFORM_FEEDBACK_INTERLEAVED_COMPONENTS,
1237      CONTEXT_INT(Const.MaxTransformFeedbackInterleavedComponents),
1238      extra_EXT_transform_feedback },
1239    { GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_ATTRIBS,
1240      CONTEXT_INT(Const.MaxTransformFeedbackBuffers),
1241      extra_EXT_transform_feedback },
1242    { GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_COMPONENTS,
1243      CONTEXT_INT(Const.MaxTransformFeedbackSeparateComponents),
1244      extra_EXT_transform_feedback },
1245
1246    /* GL_ARB_transform_feedback2 */
1247    { GL_TRANSFORM_FEEDBACK_BUFFER_PAUSED, LOC_CUSTOM, TYPE_BOOLEAN, 0,
1248      extra_ARB_transform_feedback2 },
1249    { GL_TRANSFORM_FEEDBACK_BUFFER_ACTIVE, LOC_CUSTOM, TYPE_BOOLEAN, 0,
1250      extra_ARB_transform_feedback2 },
1251    { GL_TRANSFORM_FEEDBACK_BINDING, LOC_CUSTOM, TYPE_INT, 0,
1252      extra_ARB_transform_feedback2 },
1253
1254    /* GL_ARB_transform_feedback3 */
1255    { GL_MAX_TRANSFORM_FEEDBACK_BUFFERS,
1256      CONTEXT_INT(Const.MaxTransformFeedbackBuffers),
1257      extra_ARB_transform_feedback3 },
1258    { GL_MAX_VERTEX_STREAMS,
1259      CONTEXT_INT(Const.MaxVertexStreams),
1260      extra_ARB_transform_feedback3 },
1261
1262    /* GL_ARB_geometry_shader4 */
1263    { GL_MAX_GEOMETRY_TEXTURE_IMAGE_UNITS_ARB,
1264      CONTEXT_INT(Const.MaxGeometryTextureImageUnits),
1265      extra_ARB_geometry_shader4 },
1266    { GL_MAX_GEOMETRY_OUTPUT_VERTICES_ARB,
1267      CONTEXT_INT(Const.MaxGeometryOutputVertices),
1268      extra_ARB_geometry_shader4 },
1269    { GL_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS_ARB,
1270      CONTEXT_INT(Const.MaxGeometryTotalOutputComponents),
1271      extra_ARB_geometry_shader4 },
1272    { GL_MAX_GEOMETRY_UNIFORM_COMPONENTS_ARB,
1273      CONTEXT_INT(Const.GeometryProgram.MaxUniformComponents),
1274      extra_ARB_geometry_shader4 },
1275    { GL_MAX_GEOMETRY_VARYING_COMPONENTS_ARB,
1276      CONTEXT_INT(Const.MaxGeometryVaryingComponents),
1277      extra_ARB_geometry_shader4 },
1278    { GL_MAX_VERTEX_VARYING_COMPONENTS_ARB,
1279      CONTEXT_INT(Const.MaxVertexVaryingComponents),
1280      extra_ARB_geometry_shader4 },
1281
1282    /* GL_ARB_color_buffer_float */
1283    { GL_RGBA_FLOAT_MODE_ARB, BUFFER_FIELD(Visual.floatMode, TYPE_BOOLEAN), 0 },
1284
1285    /* GL_EXT_gpu_shader4 / GLSL 1.30 */
1286    { GL_MIN_PROGRAM_TEXEL_OFFSET,
1287      CONTEXT_INT(Const.MinProgramTexelOffset),
1288      extra_GLSL_130 },
1289    { GL_MAX_PROGRAM_TEXEL_OFFSET,
1290      CONTEXT_INT(Const.MaxProgramTexelOffset),
1291      extra_GLSL_130 },
1292
1293    /* GL_ARB_texture_buffer_object */
1294    { GL_MAX_TEXTURE_BUFFER_SIZE_ARB, CONTEXT_INT(Const.MaxTextureBufferSize),
1295      extra_texture_buffer_object },
1296    { GL_TEXTURE_BINDING_BUFFER_ARB, LOC_CUSTOM, TYPE_INT, 0,
1297      extra_texture_buffer_object },
1298    { GL_TEXTURE_BUFFER_DATA_STORE_BINDING_ARB, LOC_CUSTOM, TYPE_INT,
1299      TEXTURE_BUFFER_INDEX, extra_texture_buffer_object },
1300    { GL_TEXTURE_BUFFER_FORMAT_ARB, LOC_CUSTOM, TYPE_INT, 0,
1301      extra_texture_buffer_object },
1302    { GL_TEXTURE_BUFFER_ARB, LOC_CUSTOM, TYPE_INT, 0,
1303      extra_texture_buffer_object },
1304
1305    /* GL_ARB_sampler_objects / GL 3.3 */
1306    { GL_SAMPLER_BINDING,
1307      LOC_CUSTOM, TYPE_INT, GL_SAMPLER_BINDING, NO_EXTRA },
1308
1309    /* GL 3.0 */
1310    { GL_NUM_EXTENSIONS, LOC_CUSTOM, TYPE_INT, 0, extra_version_30 },
1311    { GL_MAJOR_VERSION, LOC_CUSTOM, TYPE_INT, 0, extra_version_30 },
1312    { GL_MINOR_VERSION, LOC_CUSTOM, TYPE_INT, 0, extra_version_30  },
1313    { GL_CONTEXT_FLAGS, CONTEXT_INT(Const.ContextFlags), extra_version_30  },
1314
1315    /* GL3.0 / GL_EXT_framebuffer_sRGB */
1316    { GL_FRAMEBUFFER_SRGB_EXT, CONTEXT_BOOL(Color.sRGBEnabled), extra_EXT_framebuffer_sRGB },
1317    { GL_FRAMEBUFFER_SRGB_CAPABLE_EXT, BUFFER_INT(Visual.sRGBCapable), extra_EXT_framebuffer_sRGB },
1318
1319    /* GL 3.1 */
1320    /* NOTE: different enum values for GL_PRIMITIVE_RESTART_NV
1321     * vs. GL_PRIMITIVE_RESTART!
1322     */
1323    { GL_PRIMITIVE_RESTART, CONTEXT_BOOL(Array.PrimitiveRestart),
1324      extra_version_31 },
1325    { GL_PRIMITIVE_RESTART_INDEX, CONTEXT_INT(Array.RestartIndex),
1326      extra_version_31 },
1327
1328
1329    /* GL 3.2 */
1330    { GL_CONTEXT_PROFILE_MASK, CONTEXT_INT(Const.ProfileMask),
1331      extra_version_32 },
1332
1333    /* GL_ARB_robustness */
1334    { GL_RESET_NOTIFICATION_STRATEGY_ARB, CONTEXT_ENUM(Const.ResetStrategy), NO_EXTRA },
1335
1336    /* GL_ARB_debug_output */
1337    { GL_DEBUG_LOGGED_MESSAGES_ARB, CONTEXT_INT(Debug.NumMessages), NO_EXTRA },
1338    { GL_DEBUG_NEXT_LOGGED_MESSAGE_LENGTH_ARB, CONTEXT_INT(Debug.NextMsgLength), NO_EXTRA },
1339    { GL_MAX_DEBUG_LOGGED_MESSAGES_ARB, CONST(MAX_DEBUG_LOGGED_MESSAGES), NO_EXTRA },
1340    { GL_MAX_DEBUG_MESSAGE_LENGTH_ARB, CONST(MAX_DEBUG_MESSAGE_LENGTH), NO_EXTRA },
1341
1342    { GL_MAX_DUAL_SOURCE_DRAW_BUFFERS, CONTEXT_INT(Const.MaxDualSourceDrawBuffers), extra_ARB_blend_func_extended },
1343
1344    /* GL_ARB_uniform_buffer_object */
1345    { GL_MAX_VERTEX_UNIFORM_BLOCKS, CONTEXT_INT(Const.VertexProgram.MaxUniformBlocks),
1346      extra_ARB_uniform_buffer_object },
1347    { GL_MAX_FRAGMENT_UNIFORM_BLOCKS, CONTEXT_INT(Const.FragmentProgram.MaxUniformBlocks),
1348      extra_ARB_uniform_buffer_object },
1349    { GL_MAX_GEOMETRY_UNIFORM_BLOCKS, CONTEXT_INT(Const.GeometryProgram.MaxUniformBlocks),
1350      extra_ARB_uniform_buffer_object_and_geometry_shader },
1351    { GL_MAX_COMBINED_UNIFORM_BLOCKS, CONTEXT_INT(Const.MaxCombinedUniformBlocks),
1352      extra_ARB_uniform_buffer_object },
1353    { GL_MAX_UNIFORM_BLOCK_SIZE, CONTEXT_INT(Const.MaxUniformBlockSize),
1354      extra_ARB_uniform_buffer_object },
1355    { GL_MAX_UNIFORM_BUFFER_BINDINGS, CONTEXT_INT(Const.MaxUniformBufferBindings),
1356      extra_ARB_uniform_buffer_object },
1357
1358    { GL_MAX_COMBINED_VERTEX_UNIFORM_COMPONENTS, CONTEXT_INT(Const.VertexProgram.MaxCombinedUniformComponents),
1359      extra_ARB_uniform_buffer_object },
1360    { GL_MAX_COMBINED_FRAGMENT_UNIFORM_COMPONENTS, CONTEXT_INT(Const.FragmentProgram.MaxCombinedUniformComponents),
1361      extra_ARB_uniform_buffer_object },
1362    { GL_MAX_COMBINED_GEOMETRY_UNIFORM_COMPONENTS, CONTEXT_INT(Const.GeometryProgram.MaxCombinedUniformComponents),
1363      extra_ARB_uniform_buffer_object_and_geometry_shader },
1364    { GL_UNIFORM_BUFFER_OFFSET_ALIGNMENT, CONTEXT_INT(Const.UniformBufferOffsetAlignment),
1365      extra_ARB_uniform_buffer_object },
1366
1367    { GL_UNIFORM_BUFFER_BINDING, LOC_CUSTOM, TYPE_INT, 0, extra_ARB_uniform_buffer_object },
1368
1369    /* GL_ARB_timer_query */
1370    { GL_TIMESTAMP, LOC_CUSTOM, TYPE_INT64, 0, extra_ARB_timer_query }
1371
1372 #endif /* FEATURE_GL */
1373 };
1374
1375 /* All we need now is a way to look up the value struct from the enum.
1376  * The code generated by gcc for the old generated big switch
1377  * statement is a big, balanced, open coded if/else tree, essentially
1378  * an unrolled binary search.  It would be natural to sort the new
1379  * enum table and use bsearch(), but we will use a read-only hash
1380  * table instead.  bsearch() has a nice guaranteed worst case
1381  * performance, but we're also guaranteed to hit that worst case
1382  * (log2(n) iterations) for about half the enums.  Instead, using an
1383  * open addressing hash table, we can find the enum on the first try
1384  * for 80% of the enums, 1 collision for 10% and never more than 5
1385  * collisions for any enum (typical numbers).  And the code is very
1386  * simple, even though it feels a little magic. */
1387
1388 static unsigned short table[API_LAST + 1][1024];
1389 static const int prime_factor = 89, prime_step = 281;
1390
1391 #ifdef GET_DEBUG
1392 static void
1393 print_table_stats(int api)
1394 {
1395    int i, j, collisions[11], count, hash, mask;
1396    const struct value_desc *d;
1397    const char *api_names[] = {
1398       [API_OPENGL] = "GL",
1399       [API_OPENGL_CORE] = "GL_CORE",
1400       [API_OPENGLES] = "GLES",
1401       [API_OPENGLES2] = "GLES2",
1402    };
1403    const char *api_name;
1404
1405    api_name = api < Elements(api_names) ? api_names[api] : "N/A";
1406    count = 0;
1407    mask = Elements(table[api]) - 1;
1408    memset(collisions, 0, sizeof collisions);
1409
1410    for (i = 0; i < Elements(table[api]); i++) {
1411       if (!table[api][i])
1412          continue;
1413       count++;
1414       d = &values[table[api][i]];
1415       hash = (d->pname * prime_factor);
1416       j = 0;
1417       while (1) {
1418          if (values[table[api][hash & mask]].pname == d->pname)
1419             break;
1420          hash += prime_step;
1421          j++;
1422       }
1423
1424       if (j < 10)
1425          collisions[j]++;
1426       else
1427          collisions[10]++;
1428    }
1429
1430    printf("number of enums for %s: %d (total %ld)\n",
1431          api_name, count, Elements(values));
1432    for (i = 0; i < Elements(collisions) - 1; i++)
1433       if (collisions[i] > 0)
1434          printf("  %d enums with %d %scollisions\n",
1435                collisions[i], i, i == 10 ? "or more " : "");
1436 }
1437 #endif
1438
1439 /**
1440  * Initialize the enum hash for a given API
1441  *
1442  * This is called from one_time_init() to insert the enum values that
1443  * are valid for the API in question into the enum hash table.
1444  *
1445  * \param the current context, for determining the API in question
1446  */
1447 void _mesa_init_get_hash(struct gl_context *ctx)
1448 {
1449    int i, hash, index, mask;
1450    int api;
1451    int api_mask = 0, api_bit;
1452
1453    api = ctx->API;
1454
1455    mask = Elements(table[api]) - 1;
1456    api_bit = 1 << api;
1457
1458    for (i = 0; i < Elements(values); i++) {
1459       if (values[i].type == TYPE_API_MASK) {
1460          api_mask = values[i].offset;
1461          continue;
1462       }
1463       if (!(api_mask & api_bit))
1464          continue;
1465
1466       hash = (values[i].pname * prime_factor) & mask;
1467       while (1) {
1468          index = hash & mask;
1469          if (!table[api][index]) {
1470             table[api][index] = i;
1471             break;
1472          }
1473          hash += prime_step;
1474       }
1475    }
1476
1477 #ifdef GET_DEBUG
1478    print_table_stats();
1479 #endif
1480 }
1481
1482 /**
1483  * Handle irregular enums
1484  *
1485  * Some values don't conform to the "well-known type at context
1486  * pointer + offset" pattern, so we have this function to catch all
1487  * the corner cases.  Typically, it's a computed value or a one-off
1488  * pointer to a custom struct or something.
1489  *
1490  * In this case we can't return a pointer to the value, so we'll have
1491  * to use the temporary variable 'v' declared back in the calling
1492  * glGet*v() function to store the result.
1493  *
1494  * \param ctx the current context
1495  * \param d the struct value_desc that describes the enum
1496  * \param v pointer to the tmp declared in the calling glGet*v() function
1497  */
1498 static void
1499 find_custom_value(struct gl_context *ctx, const struct value_desc *d, union value *v)
1500 {
1501    struct gl_buffer_object **buffer_obj;
1502    struct gl_client_array *array;
1503    GLuint unit, *p;
1504
1505    switch (d->pname) {
1506    case GL_MAJOR_VERSION:
1507       v->value_int = ctx->Version / 10;
1508       break;
1509    case GL_MINOR_VERSION:
1510       v->value_int = ctx->Version % 10;
1511       break;
1512
1513    case GL_TEXTURE_1D:
1514    case GL_TEXTURE_2D:
1515    case GL_TEXTURE_3D:
1516    case GL_TEXTURE_1D_ARRAY_EXT:
1517    case GL_TEXTURE_2D_ARRAY_EXT:
1518    case GL_TEXTURE_CUBE_MAP_ARB:
1519    case GL_TEXTURE_RECTANGLE_NV:
1520    case GL_TEXTURE_EXTERNAL_OES:
1521       v->value_bool = _mesa_IsEnabled(d->pname);
1522       break;
1523
1524    case GL_LINE_STIPPLE_PATTERN:
1525       /* This is the only GLushort, special case it here by promoting
1526        * to an int rather than introducing a new type. */
1527       v->value_int = ctx->Line.StipplePattern;
1528       break;
1529
1530    case GL_CURRENT_RASTER_TEXTURE_COORDS:
1531       unit = ctx->Texture.CurrentUnit;
1532       v->value_float_4[0] = ctx->Current.RasterTexCoords[unit][0];
1533       v->value_float_4[1] = ctx->Current.RasterTexCoords[unit][1];
1534       v->value_float_4[2] = ctx->Current.RasterTexCoords[unit][2];
1535       v->value_float_4[3] = ctx->Current.RasterTexCoords[unit][3];
1536       break;
1537
1538    case GL_CURRENT_TEXTURE_COORDS:
1539       unit = ctx->Texture.CurrentUnit;
1540       v->value_float_4[0] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][0];
1541       v->value_float_4[1] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][1];
1542       v->value_float_4[2] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][2];
1543       v->value_float_4[3] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][3];
1544       break;
1545
1546    case GL_COLOR_WRITEMASK:
1547       v->value_int_4[0] = ctx->Color.ColorMask[0][RCOMP] ? 1 : 0;
1548       v->value_int_4[1] = ctx->Color.ColorMask[0][GCOMP] ? 1 : 0;
1549       v->value_int_4[2] = ctx->Color.ColorMask[0][BCOMP] ? 1 : 0;
1550       v->value_int_4[3] = ctx->Color.ColorMask[0][ACOMP] ? 1 : 0;
1551       break;
1552
1553    case GL_EDGE_FLAG:
1554       v->value_bool = ctx->Current.Attrib[VERT_ATTRIB_EDGEFLAG][0] == 1.0;
1555       break;
1556
1557    case GL_READ_BUFFER:
1558       v->value_enum = ctx->ReadBuffer->ColorReadBuffer;
1559       break;
1560
1561    case GL_MAP2_GRID_DOMAIN:
1562       v->value_float_4[0] = ctx->Eval.MapGrid2u1;
1563       v->value_float_4[1] = ctx->Eval.MapGrid2u2;
1564       v->value_float_4[2] = ctx->Eval.MapGrid2v1;
1565       v->value_float_4[3] = ctx->Eval.MapGrid2v2;
1566       break;
1567
1568    case GL_TEXTURE_STACK_DEPTH:
1569       unit = ctx->Texture.CurrentUnit;
1570       v->value_int = ctx->TextureMatrixStack[unit].Depth + 1;
1571       break;
1572    case GL_TEXTURE_MATRIX:
1573       unit = ctx->Texture.CurrentUnit;
1574       v->value_matrix = ctx->TextureMatrixStack[unit].Top;
1575       break;
1576
1577    case GL_TEXTURE_COORD_ARRAY:
1578    case GL_TEXTURE_COORD_ARRAY_SIZE:
1579    case GL_TEXTURE_COORD_ARRAY_TYPE:
1580    case GL_TEXTURE_COORD_ARRAY_STRIDE:
1581       array = &ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_TEX(ctx->Array.ActiveTexture)];
1582       v->value_int = *(GLuint *) ((char *) array + d->offset);
1583       break;
1584
1585    case GL_ACTIVE_TEXTURE_ARB:
1586       v->value_int = GL_TEXTURE0_ARB + ctx->Texture.CurrentUnit;
1587       break;
1588    case GL_CLIENT_ACTIVE_TEXTURE_ARB:
1589       v->value_int = GL_TEXTURE0_ARB + ctx->Array.ActiveTexture;
1590       break;
1591
1592    case GL_MODELVIEW_STACK_DEPTH:
1593    case GL_PROJECTION_STACK_DEPTH:
1594       v->value_int = *(GLint *) ((char *) ctx + d->offset) + 1;
1595       break;
1596
1597    case GL_MAX_TEXTURE_SIZE:
1598    case GL_MAX_3D_TEXTURE_SIZE:
1599    case GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB:
1600       p = (GLuint *) ((char *) ctx + d->offset);
1601       v->value_int = 1 << (*p - 1);
1602       break;
1603
1604    case GL_SCISSOR_BOX:
1605       v->value_int_4[0] = ctx->Scissor.X;
1606       v->value_int_4[1] = ctx->Scissor.Y;
1607       v->value_int_4[2] = ctx->Scissor.Width;
1608       v->value_int_4[3] = ctx->Scissor.Height;
1609       break;
1610
1611    case GL_LIST_INDEX:
1612       v->value_int =
1613          ctx->ListState.CurrentList ? ctx->ListState.CurrentList->Name : 0;
1614       break;
1615    case GL_LIST_MODE:
1616       if (!ctx->CompileFlag)
1617          v->value_enum = 0;
1618       else if (ctx->ExecuteFlag)
1619          v->value_enum = GL_COMPILE_AND_EXECUTE;
1620       else
1621          v->value_enum = GL_COMPILE;
1622       break;
1623
1624    case GL_VIEWPORT:
1625       v->value_int_4[0] = ctx->Viewport.X;
1626       v->value_int_4[1] = ctx->Viewport.Y;
1627       v->value_int_4[2] = ctx->Viewport.Width;
1628       v->value_int_4[3] = ctx->Viewport.Height;
1629       break;
1630
1631    case GL_ACTIVE_STENCIL_FACE_EXT:
1632       v->value_enum = ctx->Stencil.ActiveFace ? GL_BACK : GL_FRONT;
1633       break;
1634
1635    case GL_STENCIL_FAIL:
1636       v->value_enum = ctx->Stencil.FailFunc[ctx->Stencil.ActiveFace];
1637       break;
1638    case GL_STENCIL_FUNC:
1639       v->value_enum = ctx->Stencil.Function[ctx->Stencil.ActiveFace];
1640       break;
1641    case GL_STENCIL_PASS_DEPTH_FAIL:
1642       v->value_enum = ctx->Stencil.ZFailFunc[ctx->Stencil.ActiveFace];
1643       break;
1644    case GL_STENCIL_PASS_DEPTH_PASS:
1645       v->value_enum = ctx->Stencil.ZPassFunc[ctx->Stencil.ActiveFace];
1646       break;
1647    case GL_STENCIL_REF:
1648       v->value_int = ctx->Stencil.Ref[ctx->Stencil.ActiveFace];
1649       break;
1650    case GL_STENCIL_VALUE_MASK:
1651       v->value_int = ctx->Stencil.ValueMask[ctx->Stencil.ActiveFace];
1652       break;
1653    case GL_STENCIL_WRITEMASK:
1654       v->value_int = ctx->Stencil.WriteMask[ctx->Stencil.ActiveFace];
1655       break;
1656
1657    case GL_NUM_EXTENSIONS:
1658       v->value_int = _mesa_get_extension_count(ctx);
1659       break;
1660
1661    case GL_IMPLEMENTATION_COLOR_READ_TYPE_OES:
1662       v->value_int = _mesa_get_color_read_type(ctx);
1663       break;
1664    case GL_IMPLEMENTATION_COLOR_READ_FORMAT_OES:
1665       v->value_int = _mesa_get_color_read_format(ctx);
1666       break;
1667
1668    case GL_CURRENT_MATRIX_STACK_DEPTH_ARB:
1669       v->value_int = ctx->CurrentStack->Depth + 1;
1670       break;
1671    case GL_CURRENT_MATRIX_ARB:
1672    case GL_TRANSPOSE_CURRENT_MATRIX_ARB:
1673       v->value_matrix = ctx->CurrentStack->Top;
1674       break;
1675
1676    case GL_NUM_COMPRESSED_TEXTURE_FORMATS_ARB:
1677       v->value_int = _mesa_get_compressed_formats(ctx, NULL);
1678       break;
1679    case GL_COMPRESSED_TEXTURE_FORMATS_ARB:
1680       v->value_int_n.n =
1681          _mesa_get_compressed_formats(ctx, v->value_int_n.ints);
1682       ASSERT(v->value_int_n.n <= 100);
1683       break;
1684
1685    case GL_MAX_VARYING_FLOATS_ARB:
1686       v->value_int = ctx->Const.MaxVarying * 4;
1687       break;
1688
1689    /* Various object names */
1690
1691    case GL_TEXTURE_BINDING_1D:
1692    case GL_TEXTURE_BINDING_2D:
1693    case GL_TEXTURE_BINDING_3D:
1694    case GL_TEXTURE_BINDING_1D_ARRAY_EXT:
1695    case GL_TEXTURE_BINDING_2D_ARRAY_EXT:
1696    case GL_TEXTURE_BINDING_CUBE_MAP_ARB:
1697    case GL_TEXTURE_BINDING_RECTANGLE_NV:
1698    case GL_TEXTURE_BINDING_EXTERNAL_OES:
1699       unit = ctx->Texture.CurrentUnit;
1700       v->value_int =
1701          ctx->Texture.Unit[unit].CurrentTex[d->offset]->Name;
1702       break;
1703
1704    /* GL_ARB_vertex_buffer_object */
1705    case GL_VERTEX_ARRAY_BUFFER_BINDING_ARB:
1706    case GL_NORMAL_ARRAY_BUFFER_BINDING_ARB:
1707    case GL_COLOR_ARRAY_BUFFER_BINDING_ARB:
1708    case GL_INDEX_ARRAY_BUFFER_BINDING_ARB:
1709    case GL_EDGE_FLAG_ARRAY_BUFFER_BINDING_ARB:
1710    case GL_SECONDARY_COLOR_ARRAY_BUFFER_BINDING_ARB:
1711    case GL_FOG_COORDINATE_ARRAY_BUFFER_BINDING_ARB:
1712       buffer_obj = (struct gl_buffer_object **)
1713          ((char *) ctx->Array.ArrayObj + d->offset);
1714       v->value_int = (*buffer_obj)->Name;
1715       break;
1716    case GL_ARRAY_BUFFER_BINDING_ARB:
1717       v->value_int = ctx->Array.ArrayBufferObj->Name;
1718       break;
1719    case GL_TEXTURE_COORD_ARRAY_BUFFER_BINDING_ARB:
1720       v->value_int =
1721          ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_TEX(ctx->Array.ActiveTexture)].BufferObj->Name;
1722       break;
1723    case GL_ELEMENT_ARRAY_BUFFER_BINDING_ARB:
1724       v->value_int = ctx->Array.ArrayObj->ElementArrayBufferObj->Name;
1725       break;
1726
1727    /* ARB_copy_buffer */
1728    case GL_COPY_READ_BUFFER:
1729       v->value_int = ctx->CopyReadBuffer->Name;
1730       break;
1731    case GL_COPY_WRITE_BUFFER:
1732       v->value_int = ctx->CopyWriteBuffer->Name;
1733       break;
1734
1735    case GL_FRAGMENT_PROGRAM_BINDING_NV:
1736       v->value_int =
1737          ctx->FragmentProgram.Current ? ctx->FragmentProgram.Current->Base.Id : 0;
1738       break;
1739    case GL_VERTEX_PROGRAM_BINDING_NV:
1740       v->value_int =
1741          ctx->VertexProgram.Current ? ctx->VertexProgram.Current->Base.Id : 0;
1742       break;
1743    case GL_PIXEL_PACK_BUFFER_BINDING_EXT:
1744       v->value_int = ctx->Pack.BufferObj->Name;
1745       break;
1746    case GL_PIXEL_UNPACK_BUFFER_BINDING_EXT:
1747       v->value_int = ctx->Unpack.BufferObj->Name;
1748       break;
1749    case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING:
1750       v->value_int = ctx->TransformFeedback.CurrentBuffer->Name;
1751       break;
1752    case GL_TRANSFORM_FEEDBACK_BUFFER_PAUSED:
1753       v->value_int = ctx->TransformFeedback.CurrentObject->Paused;
1754       break;
1755    case GL_TRANSFORM_FEEDBACK_BUFFER_ACTIVE:
1756       v->value_int = ctx->TransformFeedback.CurrentObject->Active;
1757       break;
1758    case GL_TRANSFORM_FEEDBACK_BINDING:
1759       v->value_int = ctx->TransformFeedback.CurrentObject->Name;
1760       break;
1761    case GL_CURRENT_PROGRAM:
1762       v->value_int =
1763          ctx->Shader.ActiveProgram ? ctx->Shader.ActiveProgram->Name : 0;
1764       break;
1765    case GL_READ_FRAMEBUFFER_BINDING_EXT:
1766       v->value_int = ctx->ReadBuffer->Name;
1767       break;
1768    case GL_RENDERBUFFER_BINDING_EXT:
1769       v->value_int =
1770          ctx->CurrentRenderbuffer ? ctx->CurrentRenderbuffer->Name : 0;
1771       break;
1772    case GL_POINT_SIZE_ARRAY_BUFFER_BINDING_OES:
1773       v->value_int = ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_POINT_SIZE].BufferObj->Name;
1774       break;
1775
1776    case GL_FOG_COLOR:
1777       if(ctx->Color._ClampFragmentColor)
1778          COPY_4FV(v->value_float_4, ctx->Fog.Color);
1779       else
1780          COPY_4FV(v->value_float_4, ctx->Fog.ColorUnclamped);
1781       break;
1782    case GL_COLOR_CLEAR_VALUE:
1783       if(ctx->Color._ClampFragmentColor) {
1784          v->value_float_4[0] = CLAMP(ctx->Color.ClearColor.f[0], 0.0F, 1.0F);
1785          v->value_float_4[1] = CLAMP(ctx->Color.ClearColor.f[1], 0.0F, 1.0F);
1786          v->value_float_4[2] = CLAMP(ctx->Color.ClearColor.f[2], 0.0F, 1.0F);
1787          v->value_float_4[3] = CLAMP(ctx->Color.ClearColor.f[3], 0.0F, 1.0F);
1788       } else
1789          COPY_4FV(v->value_float_4, ctx->Color.ClearColor.f);
1790       break;
1791    case GL_BLEND_COLOR_EXT:
1792       if(ctx->Color._ClampFragmentColor)
1793          COPY_4FV(v->value_float_4, ctx->Color.BlendColor);
1794       else
1795          COPY_4FV(v->value_float_4, ctx->Color.BlendColorUnclamped);
1796       break;
1797    case GL_ALPHA_TEST_REF:
1798       if(ctx->Color._ClampFragmentColor)
1799          v->value_float = ctx->Color.AlphaRef;
1800       else
1801          v->value_float = ctx->Color.AlphaRefUnclamped;
1802       break;
1803    case GL_MAX_VERTEX_UNIFORM_VECTORS:
1804       v->value_int = ctx->Const.VertexProgram.MaxUniformComponents / 4;
1805       break;
1806
1807    case GL_MAX_FRAGMENT_UNIFORM_VECTORS:
1808       v->value_int = ctx->Const.FragmentProgram.MaxUniformComponents / 4;
1809       break;
1810
1811    /* GL_ARB_texture_buffer_object */
1812    case GL_TEXTURE_BUFFER_ARB:
1813       v->value_int = ctx->Texture.BufferObject->Name;
1814       break;
1815    case GL_TEXTURE_BINDING_BUFFER_ARB:
1816       unit = ctx->Texture.CurrentUnit;
1817       v->value_int =
1818          ctx->Texture.Unit[unit].CurrentTex[TEXTURE_BUFFER_INDEX]->Name;
1819       break;
1820    case GL_TEXTURE_BUFFER_DATA_STORE_BINDING_ARB:
1821       {
1822          struct gl_buffer_object *buf =
1823             ctx->Texture.Unit[ctx->Texture.CurrentUnit]
1824             .CurrentTex[TEXTURE_BUFFER_INDEX]->BufferObject;
1825          v->value_int = buf ? buf->Name : 0;
1826       }
1827       break;
1828    case GL_TEXTURE_BUFFER_FORMAT_ARB:
1829       v->value_int = ctx->Texture.Unit[ctx->Texture.CurrentUnit]
1830          .CurrentTex[TEXTURE_BUFFER_INDEX]->BufferObjectFormat;
1831       break;
1832
1833    /* GL_ARB_sampler_objects */
1834    case GL_SAMPLER_BINDING:
1835       {
1836          struct gl_sampler_object *samp =
1837             ctx->Texture.Unit[ctx->Texture.CurrentUnit].Sampler;
1838          v->value_int = samp ? samp->Name : 0;
1839       }
1840       break;
1841    /* GL_ARB_uniform_buffer_object */
1842    case GL_UNIFORM_BUFFER_BINDING:
1843       v->value_int = ctx->UniformBuffer->Name;
1844       break;
1845    /* GL_ARB_timer_query */
1846    case GL_TIMESTAMP:
1847       if (ctx->Driver.GetTimestamp) {
1848          v->value_int64 = ctx->Driver.GetTimestamp(ctx);
1849       }
1850       else {
1851          _mesa_problem(ctx, "driver doesn't implement GetTimestamp");
1852       }
1853       break;
1854    }
1855 }
1856
1857 /**
1858  * Check extra constraints on a struct value_desc descriptor
1859  *
1860  * If a struct value_desc has a non-NULL extra pointer, it means that
1861  * there are a number of extra constraints to check or actions to
1862  * perform.  The extras is just an integer array where each integer
1863  * encode different constraints or actions.
1864  *
1865  * \param ctx current context
1866  * \param func name of calling glGet*v() function for error reporting
1867  * \param d the struct value_desc that has the extra constraints
1868  *
1869  * \return GL_FALSE if one of the constraints was not satisfied,
1870  *     otherwise GL_TRUE.
1871  */
1872 static GLboolean
1873 check_extra(struct gl_context *ctx, const char *func, const struct value_desc *d)
1874 {
1875    const GLuint version = ctx->Version;
1876    int total, enabled;
1877    const int *e;
1878
1879    total = 0;
1880    enabled = 0;
1881    for (e = d->extra; *e != EXTRA_END; e++)
1882       switch (*e) {
1883       case EXTRA_VERSION_30:
1884          if (version >= 30) {
1885             total++;
1886             enabled++;
1887          }
1888          break;
1889       case EXTRA_VERSION_31:
1890          if (version >= 31) {
1891             total++;
1892             enabled++;
1893          }
1894          break;
1895       case EXTRA_VERSION_32:
1896          if (version >= 32) {
1897             total++;
1898             enabled++;
1899          }
1900          break;
1901       case EXTRA_NEW_FRAG_CLAMP:
1902          if (ctx->NewState & (_NEW_BUFFERS | _NEW_FRAG_CLAMP))
1903             _mesa_update_state(ctx);
1904          break;
1905       case EXTRA_API_ES2:
1906          if (ctx->API == API_OPENGLES2) {
1907             total++;
1908             enabled++;
1909          }
1910          break;
1911       case EXTRA_API_GL:
1912          if (_mesa_is_desktop_gl(ctx)) {
1913             total++;
1914             enabled++;
1915          }
1916          break;
1917       case EXTRA_NEW_BUFFERS:
1918          if (ctx->NewState & _NEW_BUFFERS)
1919             _mesa_update_state(ctx);
1920          break;
1921       case EXTRA_FLUSH_CURRENT:
1922          FLUSH_CURRENT(ctx, 0);
1923          break;
1924       case EXTRA_VALID_DRAW_BUFFER:
1925          if (d->pname - GL_DRAW_BUFFER0_ARB >= ctx->Const.MaxDrawBuffers) {
1926             _mesa_error(ctx, GL_INVALID_OPERATION, "%s(draw buffer %u)",
1927                         func, d->pname - GL_DRAW_BUFFER0_ARB);
1928             return GL_FALSE;
1929          }
1930          break;
1931       case EXTRA_VALID_TEXTURE_UNIT:
1932          if (ctx->Texture.CurrentUnit >= ctx->Const.MaxTextureCoordUnits) {
1933             _mesa_error(ctx, GL_INVALID_OPERATION, "%s(texture %u)",
1934                         func, ctx->Texture.CurrentUnit);
1935             return GL_FALSE;
1936          }
1937          break;
1938       case EXTRA_VALID_CLIP_DISTANCE:
1939          if (d->pname - GL_CLIP_DISTANCE0 >= ctx->Const.MaxClipPlanes) {
1940             _mesa_error(ctx, GL_INVALID_ENUM, "%s(clip distance %u)",
1941                         func, d->pname - GL_CLIP_DISTANCE0);
1942             return GL_FALSE;
1943          }
1944          break;
1945       case EXTRA_GLSL_130:
1946          if (ctx->Const.GLSLVersion >= 130) {
1947             total++;
1948             enabled++;
1949          }
1950          break;
1951       case EXTRA_END:
1952          break;
1953       default: /* *e is a offset into the extension struct */
1954          total++;
1955          if (*(GLboolean *) ((char *) &ctx->Extensions + *e))
1956             enabled++;
1957          break;
1958       }
1959
1960    if (total > 0 && enabled == 0) {
1961       _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func,
1962                   _mesa_lookup_enum_by_nr(d->pname));
1963       return GL_FALSE;
1964    }
1965
1966    return GL_TRUE;
1967 }
1968
1969 static const struct value_desc error_value =
1970    { 0, 0, TYPE_INVALID, NO_OFFSET, NO_EXTRA };
1971
1972 /**
1973  * Find the struct value_desc corresponding to the enum 'pname'.
1974  *
1975  * We hash the enum value to get an index into the 'table' array,
1976  * which holds the index in the 'values' array of struct value_desc.
1977  * Once we've found the entry, we do the extra checks, if any, then
1978  * look up the value and return a pointer to it.
1979  *
1980  * If the value has to be computed (for example, it's the result of a
1981  * function call or we need to add 1 to it), we use the tmp 'v' to
1982  * store the result.
1983  *
1984  * \param func name of glGet*v() func for error reporting
1985  * \param pname the enum value we're looking up
1986  * \param p is were we return the pointer to the value
1987  * \param v a tmp union value variable in the calling glGet*v() function
1988  *
1989  * \return the struct value_desc corresponding to the enum or a struct
1990  *     value_desc of TYPE_INVALID if not found.  This lets the calling
1991  *     glGet*v() function jump right into a switch statement and
1992  *     handle errors there instead of having to check for NULL.
1993  */
1994 static const struct value_desc *
1995 find_value(const char *func, GLenum pname, void **p, union value *v)
1996 {
1997    GET_CURRENT_CONTEXT(ctx);
1998    struct gl_texture_unit *unit;
1999    int mask, hash;
2000    const struct value_desc *d;
2001    int api;
2002
2003    api = ctx->API;
2004    mask = Elements(table[api]) - 1;
2005    hash = (pname * prime_factor);
2006    while (1) {
2007       int idx = table[api][hash & mask];
2008
2009       /* If the enum isn't valid, the hash walk ends with index 0,
2010        * pointing to the first entry of values[] which doesn't hold
2011        * any valid enum. */
2012       if (unlikely(idx == 0)) {
2013          _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func,
2014                _mesa_lookup_enum_by_nr(pname));
2015          return &error_value;
2016       }
2017
2018       d = &values[idx];
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
2055 static 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
2062 void 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
2151 void 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
2240 void 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 void GLAPIENTRY
2336 _mesa_GetInteger64v(GLenum pname, GLint64 *params)
2337 {
2338    const struct value_desc *d;
2339    union value v;
2340    GLmatrix *m;
2341    int shift, i;
2342    void *p;
2343    GET_CURRENT_CONTEXT(ctx);
2344
2345    ASSERT_OUTSIDE_BEGIN_END(ctx);
2346
2347    d = find_value("glGetInteger64v", pname, &p, &v);
2348    switch (d->type) {
2349    case TYPE_INVALID:
2350       break;
2351    case TYPE_CONST:
2352       params[0] = d->offset;
2353       break;
2354
2355    case TYPE_FLOAT_4:
2356       params[3] = IROUND64(((GLfloat *) p)[3]);
2357    case TYPE_FLOAT_3:
2358       params[2] = IROUND64(((GLfloat *) p)[2]);
2359    case TYPE_FLOAT_2:
2360       params[1] = IROUND64(((GLfloat *) p)[1]);
2361    case TYPE_FLOAT:
2362       params[0] = IROUND64(((GLfloat *) p)[0]);
2363       break;
2364
2365    case TYPE_FLOATN_4:
2366       params[3] = FLOAT_TO_INT64(((GLfloat *) p)[3]);
2367    case TYPE_FLOATN_3:
2368       params[2] = FLOAT_TO_INT64(((GLfloat *) p)[2]);
2369    case TYPE_FLOATN_2:
2370       params[1] = FLOAT_TO_INT64(((GLfloat *) p)[1]);
2371    case TYPE_FLOATN:
2372       params[0] = FLOAT_TO_INT64(((GLfloat *) p)[0]);
2373       break;
2374
2375    case TYPE_DOUBLEN:
2376       params[0] = FLOAT_TO_INT64(((GLdouble *) p)[0]);
2377       break;
2378
2379    case TYPE_INT_4:
2380       params[3] = ((GLint *) p)[3];
2381    case TYPE_INT_3:
2382       params[2] = ((GLint *) p)[2];
2383    case TYPE_INT_2:
2384    case TYPE_ENUM_2:
2385       params[1] = ((GLint *) p)[1];
2386    case TYPE_INT:
2387    case TYPE_ENUM:
2388       params[0] = ((GLint *) p)[0];
2389       break;
2390
2391    case TYPE_INT_N:
2392       for (i = 0; i < v.value_int_n.n; i++)
2393          params[i] = INT_TO_BOOLEAN(v.value_int_n.ints[i]);
2394       break;
2395
2396    case TYPE_INT64:
2397       params[0] = ((GLint64 *) p)[0];
2398       break;
2399
2400    case TYPE_BOOLEAN:
2401       params[0] = ((GLboolean*) p)[0];
2402       break;
2403
2404    case TYPE_MATRIX:
2405       m = *(GLmatrix **) p;
2406       for (i = 0; i < 16; i++)
2407          params[i] = FLOAT_TO_INT64(m->m[i]);
2408       break;
2409
2410    case TYPE_MATRIX_T:
2411       m = *(GLmatrix **) p;
2412       for (i = 0; i < 16; i++)
2413          params[i] = FLOAT_TO_INT64(m->m[transpose[i]]);
2414       break;
2415
2416    case TYPE_BIT_0:
2417    case TYPE_BIT_1:
2418    case TYPE_BIT_2:
2419    case TYPE_BIT_3:
2420    case TYPE_BIT_4:
2421    case TYPE_BIT_5:
2422    case TYPE_BIT_6:
2423    case TYPE_BIT_7:
2424       shift = d->type - TYPE_BIT_0;
2425       params[0] = (*(GLbitfield *) p >> shift) & 1;
2426       break;
2427    }
2428 }
2429
2430 void GLAPIENTRY
2431 _mesa_GetDoublev(GLenum pname, GLdouble *params)
2432 {
2433    const struct value_desc *d;
2434    union value v;
2435    GLmatrix *m;
2436    int shift, i;
2437    void *p;
2438    GET_CURRENT_CONTEXT(ctx);
2439
2440    ASSERT_OUTSIDE_BEGIN_END(ctx);
2441
2442    d = find_value("glGetDoublev", pname, &p, &v);
2443    switch (d->type) {
2444    case TYPE_INVALID:
2445       break;
2446    case TYPE_CONST:
2447       params[0] = d->offset;
2448       break;
2449
2450    case TYPE_FLOAT_4:
2451    case TYPE_FLOATN_4:
2452       params[3] = ((GLfloat *) p)[3];
2453    case TYPE_FLOAT_3:
2454    case TYPE_FLOATN_3:
2455       params[2] = ((GLfloat *) p)[2];
2456    case TYPE_FLOAT_2:
2457    case TYPE_FLOATN_2:
2458       params[1] = ((GLfloat *) p)[1];
2459    case TYPE_FLOAT:
2460    case TYPE_FLOATN:
2461       params[0] = ((GLfloat *) p)[0];
2462       break;
2463
2464    case TYPE_DOUBLEN:
2465       params[0] = ((GLdouble *) p)[0];
2466       break;
2467
2468    case TYPE_INT_4:
2469       params[3] = ((GLint *) p)[3];
2470    case TYPE_INT_3:
2471       params[2] = ((GLint *) p)[2];
2472    case TYPE_INT_2:
2473    case TYPE_ENUM_2:
2474       params[1] = ((GLint *) p)[1];
2475    case TYPE_INT:
2476    case TYPE_ENUM:
2477       params[0] = ((GLint *) p)[0];
2478       break;
2479
2480    case TYPE_INT_N:
2481       for (i = 0; i < v.value_int_n.n; i++)
2482          params[i] = v.value_int_n.ints[i];
2483       break;
2484
2485    case TYPE_INT64:
2486       params[0] = ((GLint64 *) p)[0];
2487       break;
2488
2489    case TYPE_BOOLEAN:
2490       params[0] = *(GLboolean*) p;
2491       break;
2492
2493    case TYPE_MATRIX:
2494       m = *(GLmatrix **) p;
2495       for (i = 0; i < 16; i++)
2496          params[i] = m->m[i];
2497       break;
2498
2499    case TYPE_MATRIX_T:
2500       m = *(GLmatrix **) p;
2501       for (i = 0; i < 16; i++)
2502          params[i] = m->m[transpose[i]];
2503       break;
2504
2505    case TYPE_BIT_0:
2506    case TYPE_BIT_1:
2507    case TYPE_BIT_2:
2508    case TYPE_BIT_3:
2509    case TYPE_BIT_4:
2510    case TYPE_BIT_5:
2511    case TYPE_BIT_6:
2512    case TYPE_BIT_7:
2513       shift = d->type - TYPE_BIT_0;
2514       params[0] = (*(GLbitfield *) p >> shift) & 1;
2515       break;
2516    }
2517 }
2518
2519 static enum value_type
2520 find_value_indexed(const char *func, GLenum pname, int index, union value *v)
2521 {
2522    GET_CURRENT_CONTEXT(ctx);
2523
2524    switch (pname) {
2525
2526    case GL_BLEND:
2527       if (index >= ctx->Const.MaxDrawBuffers)
2528          goto invalid_value;
2529       if (!ctx->Extensions.EXT_draw_buffers2)
2530          goto invalid_enum;
2531       v->value_int = (ctx->Color.BlendEnabled >> index) & 1;
2532       return TYPE_INT;
2533
2534    case GL_BLEND_SRC:
2535       /* fall-through */
2536    case GL_BLEND_SRC_RGB:
2537       if (index >= ctx->Const.MaxDrawBuffers)
2538          goto invalid_value;
2539       if (!ctx->Extensions.ARB_draw_buffers_blend)
2540          goto invalid_enum;
2541       v->value_int = ctx->Color.Blend[index].SrcRGB;
2542       return TYPE_INT;
2543    case GL_BLEND_SRC_ALPHA:
2544       if (index >= ctx->Const.MaxDrawBuffers)
2545          goto invalid_value;
2546       if (!ctx->Extensions.ARB_draw_buffers_blend)
2547          goto invalid_enum;
2548       v->value_int = ctx->Color.Blend[index].SrcA;
2549       return TYPE_INT;
2550    case GL_BLEND_DST:
2551       /* fall-through */
2552    case GL_BLEND_DST_RGB:
2553       if (index >= ctx->Const.MaxDrawBuffers)
2554          goto invalid_value;
2555       if (!ctx->Extensions.ARB_draw_buffers_blend)
2556          goto invalid_enum;
2557       v->value_int = ctx->Color.Blend[index].DstRGB;
2558       return TYPE_INT;
2559    case GL_BLEND_DST_ALPHA:
2560       if (index >= ctx->Const.MaxDrawBuffers)
2561          goto invalid_value;
2562       if (!ctx->Extensions.ARB_draw_buffers_blend)
2563          goto invalid_enum;
2564       v->value_int = ctx->Color.Blend[index].DstA;
2565       return TYPE_INT;
2566    case GL_BLEND_EQUATION_RGB:
2567       if (index >= ctx->Const.MaxDrawBuffers)
2568          goto invalid_value;
2569       if (!ctx->Extensions.ARB_draw_buffers_blend)
2570          goto invalid_enum;
2571       v->value_int = ctx->Color.Blend[index].EquationRGB;
2572       return TYPE_INT;
2573    case GL_BLEND_EQUATION_ALPHA:
2574       if (index >= ctx->Const.MaxDrawBuffers)
2575          goto invalid_value;
2576       if (!ctx->Extensions.ARB_draw_buffers_blend)
2577          goto invalid_enum;
2578       v->value_int = ctx->Color.Blend[index].EquationA;
2579       return TYPE_INT;
2580
2581    case GL_COLOR_WRITEMASK:
2582       if (index >= ctx->Const.MaxDrawBuffers)
2583          goto invalid_value;
2584       if (!ctx->Extensions.EXT_draw_buffers2)
2585          goto invalid_enum;
2586       v->value_int_4[0] = ctx->Color.ColorMask[index][RCOMP] ? 1 : 0;
2587       v->value_int_4[1] = ctx->Color.ColorMask[index][GCOMP] ? 1 : 0;
2588       v->value_int_4[2] = ctx->Color.ColorMask[index][BCOMP] ? 1 : 0;
2589       v->value_int_4[3] = ctx->Color.ColorMask[index][ACOMP] ? 1 : 0;
2590       return TYPE_INT_4;
2591
2592    case GL_TRANSFORM_FEEDBACK_BUFFER_START:
2593       if (index >= ctx->Const.MaxTransformFeedbackBuffers)
2594          goto invalid_value;
2595       if (!ctx->Extensions.EXT_transform_feedback)
2596          goto invalid_enum;
2597       v->value_int64 = ctx->TransformFeedback.CurrentObject->Offset[index];
2598       return TYPE_INT64;
2599
2600    case GL_TRANSFORM_FEEDBACK_BUFFER_SIZE:
2601       if (index >= ctx->Const.MaxTransformFeedbackBuffers)
2602          goto invalid_value;
2603       if (!ctx->Extensions.EXT_transform_feedback)
2604          goto invalid_enum;
2605       v->value_int64 = ctx->TransformFeedback.CurrentObject->Size[index];
2606       return TYPE_INT64;
2607
2608    case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING:
2609       if (index >= ctx->Const.MaxTransformFeedbackBuffers)
2610          goto invalid_value;
2611       if (!ctx->Extensions.EXT_transform_feedback)
2612          goto invalid_enum;
2613       v->value_int = ctx->TransformFeedback.CurrentObject->BufferNames[index];
2614       return TYPE_INT;
2615
2616    case GL_UNIFORM_BUFFER_BINDING:
2617       if (index >= ctx->Const.MaxUniformBufferBindings)
2618          goto invalid_value;
2619       if (!ctx->Extensions.ARB_uniform_buffer_object)
2620          goto invalid_enum;
2621       v->value_int = ctx->UniformBufferBindings[index].BufferObject->Name;
2622       return TYPE_INT;
2623
2624    case GL_UNIFORM_BUFFER_START:
2625       if (index >= ctx->Const.MaxUniformBufferBindings)
2626          goto invalid_value;
2627       if (!ctx->Extensions.ARB_uniform_buffer_object)
2628          goto invalid_enum;
2629       v->value_int = ctx->UniformBufferBindings[index].Offset;
2630       return TYPE_INT;
2631
2632    case GL_UNIFORM_BUFFER_SIZE:
2633       if (index >= ctx->Const.MaxUniformBufferBindings)
2634          goto invalid_value;
2635       if (!ctx->Extensions.ARB_uniform_buffer_object)
2636          goto invalid_enum;
2637       v->value_int = ctx->UniformBufferBindings[index].Size;
2638       return TYPE_INT;
2639    }
2640
2641  invalid_enum:
2642    _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func,
2643                _mesa_lookup_enum_by_nr(pname));
2644    return TYPE_INVALID;
2645  invalid_value:
2646    _mesa_error(ctx, GL_INVALID_VALUE, "%s(pname=%s)", func,
2647                _mesa_lookup_enum_by_nr(pname));
2648    return TYPE_INVALID;
2649 }
2650
2651 void GLAPIENTRY
2652 _mesa_GetBooleanIndexedv( GLenum pname, GLuint index, GLboolean *params )
2653 {
2654    union value v;
2655    enum value_type type =
2656       find_value_indexed("glGetBooleanIndexedv", pname, index, &v);
2657
2658    switch (type) {
2659    case TYPE_INT:
2660       params[0] = INT_TO_BOOLEAN(v.value_int);
2661       break;
2662    case TYPE_INT_4:
2663       params[0] = INT_TO_BOOLEAN(v.value_int_4[0]);
2664       params[1] = INT_TO_BOOLEAN(v.value_int_4[1]);
2665       params[2] = INT_TO_BOOLEAN(v.value_int_4[2]);
2666       params[3] = INT_TO_BOOLEAN(v.value_int_4[3]);
2667       break;
2668    case TYPE_INT64:
2669       params[0] = INT64_TO_BOOLEAN(v.value_int);
2670       break;
2671    default:
2672       ; /* nothing - GL error was recorded */
2673    }
2674 }
2675
2676 void GLAPIENTRY
2677 _mesa_GetIntegerIndexedv( GLenum pname, GLuint index, GLint *params )
2678 {
2679    union value v;
2680    enum value_type type =
2681       find_value_indexed("glGetIntegerIndexedv", pname, index, &v);
2682
2683    switch (type) {
2684    case TYPE_INT:
2685       params[0] = v.value_int;
2686       break;
2687    case TYPE_INT_4:
2688       params[0] = v.value_int_4[0];
2689       params[1] = v.value_int_4[1];
2690       params[2] = v.value_int_4[2];
2691       params[3] = v.value_int_4[3];
2692       break;
2693    case TYPE_INT64:
2694       params[0] = INT64_TO_INT(v.value_int);
2695       break;
2696    default:
2697       ; /* nothing - GL error was recorded */
2698    }
2699 }
2700
2701 void GLAPIENTRY
2702 _mesa_GetInteger64Indexedv( GLenum pname, GLuint index, GLint64 *params )
2703 {
2704    union value v;
2705    enum value_type type =
2706       find_value_indexed("glGetIntegerIndexedv", pname, index, &v);
2707
2708    switch (type) {
2709    case TYPE_INT:
2710       params[0] = v.value_int;
2711       break;
2712    case TYPE_INT_4:
2713       params[0] = v.value_int_4[0];
2714       params[1] = v.value_int_4[1];
2715       params[2] = v.value_int_4[2];
2716       params[3] = v.value_int_4[3];
2717       break;
2718    case TYPE_INT64:
2719       params[0] = v.value_int;
2720       break;
2721    default:
2722       ; /* nothing - GL error was recorded */
2723    }
2724 }
2725
2726 #if FEATURE_ES1
2727 void GLAPIENTRY
2728 _mesa_GetFixedv(GLenum pname, GLfixed *params)
2729 {
2730    const struct value_desc *d;
2731    union value v;
2732    GLmatrix *m;
2733    int shift, i;
2734    void *p;
2735
2736    d = find_value("glGetDoublev", pname, &p, &v);
2737    switch (d->type) {
2738    case TYPE_INVALID:
2739       break;
2740    case TYPE_CONST:
2741       params[0] = INT_TO_FIXED(d->offset);
2742       break;
2743
2744    case TYPE_FLOAT_4:
2745    case TYPE_FLOATN_4:
2746       params[3] = FLOAT_TO_FIXED(((GLfloat *) p)[3]);
2747    case TYPE_FLOAT_3:
2748    case TYPE_FLOATN_3:
2749       params[2] = FLOAT_TO_FIXED(((GLfloat *) p)[2]);
2750    case TYPE_FLOAT_2:
2751    case TYPE_FLOATN_2:
2752       params[1] = FLOAT_TO_FIXED(((GLfloat *) p)[1]);
2753    case TYPE_FLOAT:
2754    case TYPE_FLOATN:
2755       params[0] = FLOAT_TO_FIXED(((GLfloat *) p)[0]);
2756       break;
2757
2758    case TYPE_DOUBLEN:
2759       params[0] = FLOAT_TO_FIXED(((GLdouble *) p)[0]);
2760       break;
2761
2762    case TYPE_INT_4:
2763       params[3] = INT_TO_FIXED(((GLint *) p)[3]);
2764    case TYPE_INT_3:
2765       params[2] = INT_TO_FIXED(((GLint *) p)[2]);
2766    case TYPE_INT_2:
2767    case TYPE_ENUM_2:
2768       params[1] = INT_TO_FIXED(((GLint *) p)[1]);
2769    case TYPE_INT:
2770    case TYPE_ENUM:
2771       params[0] = INT_TO_FIXED(((GLint *) p)[0]);
2772       break;
2773
2774    case TYPE_INT_N:
2775       for (i = 0; i < v.value_int_n.n; i++)
2776          params[i] = INT_TO_FIXED(v.value_int_n.ints[i]);
2777       break;
2778
2779    case TYPE_INT64:
2780       params[0] = ((GLint64 *) p)[0];
2781       break;
2782
2783    case TYPE_BOOLEAN:
2784       params[0] = BOOLEAN_TO_FIXED(((GLboolean*) p)[0]);
2785       break;
2786
2787    case TYPE_MATRIX:
2788       m = *(GLmatrix **) p;
2789       for (i = 0; i < 16; i++)
2790          params[i] = FLOAT_TO_FIXED(m->m[i]);
2791       break;
2792
2793    case TYPE_MATRIX_T:
2794       m = *(GLmatrix **) p;
2795       for (i = 0; i < 16; i++)
2796          params[i] = FLOAT_TO_FIXED(m->m[transpose[i]]);
2797       break;
2798
2799    case TYPE_BIT_0:
2800    case TYPE_BIT_1:
2801    case TYPE_BIT_2:
2802    case TYPE_BIT_3:
2803    case TYPE_BIT_4:
2804    case TYPE_BIT_5:
2805    case TYPE_BIT_6:
2806    case TYPE_BIT_7:
2807       shift = d->type - TYPE_BIT_0;
2808       params[0] = BOOLEAN_TO_FIXED((*(GLbitfield *) p >> shift) & 1);
2809       break;
2810    }
2811 }
2812 #endif