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 "extensions.h"
  29 #include "get.h"
  30 #include "macros.h"
  31 #include "mtypes.h"
  32 #include "state.h"
  33 #include "texcompress.h"
  34 #include "framebuffer.h"
  35
  36 /* This is a table driven implemetation of the glGet*v() functions.
  37  * The basic idea is that most getters just look up an int somewhere
  38  * in GLcontext and then convert it to a bool or float according to
  39  * which of glGetIntegerv() glGetBooleanv() etc is being called.
  40  * Instead of generating code to do this, we can just record the enum
  41  * value and the offset into GLcontext in an array of structs.  Then
  42  * in glGet*(), we lookup the struct for the enum in question, and use
  43  * the offset to get the int we need.
  44  *
  45  * Sometimes we need to look up a float, a boolean, a bit in a
  46  * bitfield, a matrix or other types instead, so we need to track the
  47  * type of the value in GLcontext.  And sometimes the value isn't in
  48  * GLcontext but in the drawbuffer, the array object, current texture
  49  * unit, or maybe it's a computed value.  So we need to also track
  50  * where or how to find the value.  Finally, we sometimes need to
  51  * check that one of a number of extensions are enabled, the GL
  52  * version or flush or call _mesa_update_state().  This is done by
  53  * attaching optional extra information to the value description
  54  * struct, it's sort of like an array of opcodes that describe extra
  55  * checks or actions.
  56  *
  57  * Putting all this together we end up with struct value_desc below,
  58  * and with a couple of macros to help, the table of struct value_desc
  59  * is about as concise as the specification in the old python script.
  60  */
  61
  62 #undef CONST
  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_FLOAT,
 104    TYPE_FLOAT_2,
 105    TYPE_FLOAT_3,
 106    TYPE_FLOAT_4,
 107    TYPE_FLOATN,
 108    TYPE_FLOATN_2,
 109    TYPE_FLOATN_3,
 110    TYPE_FLOATN_4,
 111    TYPE_DOUBLEN,
 112    TYPE_MATRIX,
 113    TYPE_MATRIX_T,
 114    TYPE_CONST
 115 };
 116
 117 enum value_location {
 118    LOC_BUFFER,
 119    LOC_CONTEXT,
 120    LOC_ARRAY,
 121    LOC_TEXUNIT,
 122    LOC_CUSTOM
 123 };
 124
 125 enum value_extra {
 126    EXTRA_END = 0x8000,
 127    EXTRA_VERSION_30,
 128    EXTRA_VERSION_31,
 129    EXTRA_VERSION_32,
 130    EXTRA_NEW_BUFFERS,
 131    EXTRA_VALID_DRAW_BUFFER,
 132    EXTRA_VALID_TEXTURE_UNIT,
 133    EXTRA_FLUSH_CURRENT,
 134 };
 135
 136 struct value_desc {
 137    GLenum pname;
 138    enum value_location location : 8;
 139    enum value_type type : 8;
 140    int offset;
 141    const int *extra;
 142 };
 143
 144 union value {
 145    GLfloat value_float;
 146    GLfloat value_float_4[4];
 147    GLmatrix *value_matrix;
 148    GLint value_int;
 149    GLint value_int_4[4];
 150    GLint64 value_int64;
 151    GLenum value_enum;
 152
 153    /* Sigh, see GL_COMPRESSED_TEXTURE_FORMATS_ARB handling */
 154    struct {
 155       GLint n, ints[100];
 156    } value_int_n;
 157    GLboolean value_bool;
 158 };
 159
 160 #define BUFFER_FIELD(field, type) \
 161    LOC_BUFFER, type, offsetof(struct gl_framebuffer, field)
 162 #define CONTEXT_FIELD(field, type) \
 163    LOC_CONTEXT, type, offsetof(GLcontext, field)
 164 #define ARRAY_FIELD(field, type) \
 165    LOC_ARRAY, type, offsetof(struct gl_array_object, field)
 166 #define CONST(value) \
 167    LOC_CONTEXT, TYPE_CONST, value
 168
 169 #define BUFFER_INT(field) BUFFER_FIELD(field, TYPE_INT)
 170 #define BUFFER_ENUM(field) BUFFER_FIELD(field, TYPE_ENUM)
 171
 172 #define CONTEXT_INT(field) CONTEXT_FIELD(field, TYPE_INT)
 173 #define CONTEXT_INT2(field) CONTEXT_FIELD(field, TYPE_INT_2)
 174 #define CONTEXT_INT64(field) CONTEXT_FIELD(field, TYPE_INT64)
 175 #define CONTEXT_ENUM(field) CONTEXT_FIELD(field, TYPE_ENUM)
 176 #define CONTEXT_ENUM2(field) CONTEXT_FIELD(field, TYPE_ENUM_2)
 177 #define CONTEXT_BOOL(field) CONTEXT_FIELD(field, TYPE_BOOLEAN)
 178 #define CONTEXT_BIT0(field) CONTEXT_FIELD(field, TYPE_BIT_0)
 179 #define CONTEXT_BIT1(field) CONTEXT_FIELD(field, TYPE_BIT_1)
 180 #define CONTEXT_BIT2(field) CONTEXT_FIELD(field, TYPE_BIT_2)
 181 #define CONTEXT_BIT3(field) CONTEXT_FIELD(field, TYPE_BIT_3)
 182 #define CONTEXT_BIT4(field) CONTEXT_FIELD(field, TYPE_BIT_4)
 183 #define CONTEXT_BIT5(field) CONTEXT_FIELD(field, TYPE_BIT_5)
 184 #define CONTEXT_FLOAT(field) CONTEXT_FIELD(field, TYPE_FLOAT)
 185 #define CONTEXT_FLOAT2(field) CONTEXT_FIELD(field, TYPE_FLOAT_2)
 186 #define CONTEXT_FLOAT3(field) CONTEXT_FIELD(field, TYPE_FLOAT_3)
 187 #define CONTEXT_FLOAT4(field) CONTEXT_FIELD(field, TYPE_FLOAT_4)
 188 #define CONTEXT_MATRIX(field) CONTEXT_FIELD(field, TYPE_MATRIX)
 189 #define CONTEXT_MATRIX_T(field) CONTEXT_FIELD(field, TYPE_MATRIX_T)
 190
 191 #define ARRAY_INT(field) ARRAY_FIELD(field, TYPE_INT)
 192 #define ARRAY_ENUM(field) ARRAY_FIELD(field, TYPE_ENUM)
 193 #define ARRAY_BOOL(field) ARRAY_FIELD(field, TYPE_BOOLEAN)
 194
 195 #define EXT(f)                                  \
 196    offsetof(struct gl_extensions, f)
 197
 198 #define EXTRA_EXT(e)                            \
 199    static const int extra_##e[] = {             \
 200       EXT(e), EXTRA_END                         \
 201    }
 202
 203 #define EXTRA_EXT2(e1, e2)                      \
 204    static const int extra_##e1##_##e2[] = {     \
 205       EXT(e1), EXT(e2), EXTRA_END               \
 206    }
 207
 208 /* The 'extra' mechanism is a way to specify extra checks (such as
 209  * extensions or specific gl versions) or actions (flush current, new
 210  * buffers) that we need to do before looking up an enum.  We need to
 211  * declare them all up front so we can refer to them in the value_desc
 212  * structs below. */
 213
 214 static const int extra_new_buffers[] = {
 215    EXTRA_NEW_BUFFERS,
 216    EXTRA_END
 217 };
 218
 219 static const int extra_valid_draw_buffer[] = {
 220    EXTRA_VALID_DRAW_BUFFER,
 221    EXTRA_END
 222 };
 223
 224 static const int extra_valid_texture_unit[] = {
 225    EXTRA_VALID_TEXTURE_UNIT,
 226    EXTRA_END
 227 };
 228
 229 static const int extra_flush_current_valid_texture_unit[] = {
 230    EXTRA_FLUSH_CURRENT,
 231    EXTRA_VALID_TEXTURE_UNIT,
 232    EXTRA_END
 233 };
 234
 235 static const int extra_flush_current[] = {
 236    EXTRA_FLUSH_CURRENT,
 237    EXTRA_END
 238 };
 239
 240 static const int extra_new_buffers_OES_read_format[] = {
 241    EXTRA_NEW_BUFFERS,
 242    EXT(OES_read_format),
 243    EXTRA_END
 244 };
 245
 246 static const int extra_EXT_secondary_color_flush_current[] = {
 247    EXT(EXT_secondary_color),
 248    EXTRA_FLUSH_CURRENT,
 249    EXTRA_END
 250 };
 251
 252 static const int extra_EXT_fog_coord_flush_current[] = {
 253    EXT(EXT_fog_coord),
 254    EXTRA_FLUSH_CURRENT,
 255    EXTRA_END
 256 };
 257
 258 EXTRA_EXT(ARB_multitexture);
 259 EXTRA_EXT(ARB_texture_cube_map);
 260 EXTRA_EXT(MESA_texture_array);
 261 EXTRA_EXT2(EXT_secondary_color, ARB_vertex_program);
 262 EXTRA_EXT(EXT_secondary_color);
 263 EXTRA_EXT(EXT_fog_coord);
 264 EXTRA_EXT(EXT_texture_lod_bias);
 265 EXTRA_EXT(EXT_texture_filter_anisotropic);
 266 EXTRA_EXT(IBM_rasterpos_clip);
 267 EXTRA_EXT(NV_point_sprite);
 268 EXTRA_EXT(SGIS_generate_mipmap);
 269 EXTRA_EXT(NV_vertex_program);
 270 EXTRA_EXT(NV_fragment_program);
 271 EXTRA_EXT(NV_texture_rectangle);
 272 EXTRA_EXT(EXT_stencil_two_side);
 273 EXTRA_EXT(NV_light_max_exponent);
 274 EXTRA_EXT(EXT_convolution);
 275 EXTRA_EXT(EXT_histogram);
 276 EXTRA_EXT(SGI_color_table);
 277 EXTRA_EXT(SGI_texture_color_table);
 278 EXTRA_EXT(EXT_depth_bounds_test);
 279 EXTRA_EXT(ARB_depth_clamp);
 280 EXTRA_EXT(ATI_fragment_shader);
 281 EXTRA_EXT(EXT_framebuffer_blit);
 282 EXTRA_EXT(ARB_shader_objects);
 283 EXTRA_EXT(EXT_provoking_vertex);
 284 EXTRA_EXT(ARB_fragment_shader);
 285 EXTRA_EXT(ARB_fragment_program);
 286 EXTRA_EXT(ARB_framebuffer_object);
 287 EXTRA_EXT(EXT_framebuffer_object);
 288 EXTRA_EXT(APPLE_vertex_array_object);
 289 EXTRA_EXT(ARB_seamless_cube_map);
 290 EXTRA_EXT(EXT_compiled_vertex_array);
 291 EXTRA_EXT(ARB_sync);
 292 EXTRA_EXT(ARB_vertex_shader);
 293 EXTRA_EXT(EXT_transform_feedback);
 294 EXTRA_EXT(EXT_pixel_buffer_object);
 295 EXTRA_EXT(ARB_vertex_program);
 296 EXTRA_EXT2(NV_point_sprite, ARB_point_sprite);
 297 EXTRA_EXT2(ARB_fragment_program, NV_fragment_program);
 298 EXTRA_EXT2(ARB_vertex_program, NV_vertex_program);
 299 EXTRA_EXT2(ARB_vertex_program, ARB_fragment_program);
 300 EXTRA_EXT(ARB_vertex_buffer_object);
 301
 302 static const int
 303 extra_ARB_vertex_program_ARB_fragment_program_NV_vertex_program[] = {
 304    EXT(ARB_vertex_program),
 305    EXT(ARB_fragment_program),
 306    EXT(NV_vertex_program),
 307    EXTRA_END
 308 };
 309
 310 static const int
 311 extra_NV_vertex_program_ARB_vertex_program_ARB_fragment_program_NV_vertex_program[] = {
 312    EXT(NV_vertex_program),
 313    EXT(ARB_vertex_program),
 314    EXT(ARB_fragment_program),
 315    EXT(NV_vertex_program),
 316    EXTRA_END
 317 };
 318
 319 static const int extra_version_30[] = { EXTRA_VERSION_30, EXTRA_END };
 320 static const int extra_version_31[] = { EXTRA_VERSION_31, EXTRA_END };
 321 static const int extra_version_32[] = { EXTRA_VERSION_32, EXTRA_END };
 322
 323 #define API_OPENGL_BIT (1 << API_OPENGL)
 324 #define API_OPENGLES_BIT (1 << API_OPENGLES)
 325 #define API_OPENGLES2_BIT (1 << API_OPENGLES2)
 326
 327 /* This is the big table describing all the enums we accept in
 328  * glGet*v().  The table is partitioned into six parts: enums
 329  * understood by all GL APIs (OpenGL, GLES and GLES2), enums shared
 330  * between OpenGL and GLES, enums exclusive to GLES, etc for the
 331  * remaining combinations.  When we add the enums to the hash table in
 332  * _mesa_init_get_hash(), we only add the enums for the API we're
 333  * instantiating and the different sections are guarded by #if
 334  * FEATURE_GL etc to make sure we only compile in the enums we may
 335  * need. */
 336
 337 static const struct value_desc values[] = {
 338    /* Enums shared between OpenGL, GLES1 and GLES2 */
 339    { 0, 0, TYPE_API_MASK,
 340      API_OPENGL_BIT | API_OPENGLES_BIT | API_OPENGLES2_BIT},
 341    { GL_ALPHA_BITS, BUFFER_INT(Visual.alphaBits), extra_new_buffers },
 342    { GL_BLEND, CONTEXT_BIT0(Color.BlendEnabled) },
 343    { GL_BLEND_SRC, CONTEXT_ENUM(Color.BlendSrcRGB) },
 344    { GL_BLUE_BITS, BUFFER_INT(Visual.blueBits), extra_new_buffers },
 345    { GL_COLOR_CLEAR_VALUE, CONTEXT_FIELD(Color.ClearColor[0], TYPE_FLOATN_4) },
 346    { GL_COLOR_WRITEMASK, LOC_CUSTOM, TYPE_INT_4, 0, },
 347    { GL_CULL_FACE, CONTEXT_BOOL(Polygon.CullFlag) },
 348    { GL_CULL_FACE_MODE, CONTEXT_ENUM(Polygon.CullFaceMode) },
 349    { GL_DEPTH_BITS, BUFFER_INT(Visual.depthBits) },
 350    { GL_DEPTH_CLEAR_VALUE, CONTEXT_FIELD(Depth.Clear, TYPE_DOUBLEN) },
 351    { GL_DEPTH_FUNC, CONTEXT_ENUM(Depth.Func) },
 352    { GL_DEPTH_RANGE, CONTEXT_FIELD(Viewport.Near, TYPE_FLOATN_2) },
 353    { GL_DEPTH_TEST, CONTEXT_BOOL(Depth.Test) },
 354    { GL_DEPTH_WRITEMASK, CONTEXT_BOOL(Depth.Mask) },
 355    { GL_DITHER, CONTEXT_BOOL(Color.DitherFlag) },
 356    { GL_FRONT_FACE, CONTEXT_ENUM(Polygon.FrontFace) },
 357    { GL_GREEN_BITS, BUFFER_INT(Visual.greenBits), extra_new_buffers },
 358    { GL_LINE_WIDTH, CONTEXT_FLOAT(Line.Width) },
 359    { GL_ALIASED_LINE_WIDTH_RANGE, CONTEXT_FLOAT2(Const.MinLineWidth) },
 360    { GL_MAX_ELEMENTS_VERTICES, CONTEXT_INT(Const.MaxArrayLockSize) },
 361    { GL_MAX_ELEMENTS_INDICES, CONTEXT_INT(Const.MaxArrayLockSize) },
 362    { GL_MAX_TEXTURE_SIZE, LOC_CUSTOM, TYPE_INT,
 363      offsetof(GLcontext, Const.MaxTextureLevels) },
 364    { GL_MAX_VIEWPORT_DIMS, CONTEXT_INT2(Const.MaxViewportWidth) },
 365    { GL_PACK_ALIGNMENT, CONTEXT_INT(Pack.Alignment) },
 366    { GL_ALIASED_POINT_SIZE_RANGE, CONTEXT_FLOAT2(Const.MinPointSize) },
 367    { GL_POLYGON_OFFSET_FACTOR, CONTEXT_FLOAT(Polygon.OffsetFactor ) },
 368    { GL_POLYGON_OFFSET_UNITS, CONTEXT_FLOAT(Polygon.OffsetUnits ) },
 369    { GL_POLYGON_OFFSET_FILL, CONTEXT_BOOL(Polygon.OffsetFill) },
 370    { GL_RED_BITS, BUFFER_INT(Visual.redBits), extra_new_buffers },
 371    { GL_SCISSOR_BOX, LOC_CUSTOM, TYPE_INT_4, 0 },
 372    { GL_SCISSOR_TEST, CONTEXT_BOOL(Scissor.Enabled) },
 373    { GL_STENCIL_BITS, BUFFER_INT(Visual.stencilBits) },
 374    { GL_STENCIL_CLEAR_VALUE, CONTEXT_INT(Stencil.Clear) },
 375    { GL_STENCIL_FAIL, LOC_CUSTOM, TYPE_ENUM },
 376    { GL_STENCIL_FUNC, LOC_CUSTOM, TYPE_ENUM },
 377    { GL_STENCIL_PASS_DEPTH_FAIL, LOC_CUSTOM, TYPE_ENUM },
 378    { GL_STENCIL_PASS_DEPTH_PASS, LOC_CUSTOM, TYPE_ENUM },
 379    { GL_STENCIL_REF, LOC_CUSTOM, TYPE_INT },
 380    { GL_STENCIL_TEST, CONTEXT_BOOL(Stencil.Enabled) },
 381    { GL_STENCIL_VALUE_MASK, LOC_CUSTOM, TYPE_INT },
 382    { GL_STENCIL_WRITEMASK, LOC_CUSTOM, TYPE_INT },
 383    { GL_SUBPIXEL_BITS, CONTEXT_INT(Const.SubPixelBits) },
 384    { GL_TEXTURE_BINDING_2D, LOC_CUSTOM, TYPE_INT, TEXTURE_2D_INDEX },
 385    { GL_UNPACK_ALIGNMENT, CONTEXT_INT(Unpack.Alignment) },
 386    { GL_VIEWPORT, LOC_CUSTOM, TYPE_INT_4, 0 },
 387
 388    /* GL_ARB_multitexture */
 389    { GL_ACTIVE_TEXTURE_ARB,
 390      LOC_CUSTOM, TYPE_INT, 0, extra_ARB_multitexture },
 391
 392    /* Note that all the OES_* extensions require that the Mesa "struct
 393     * gl_extensions" include a member with the name of the extension.
 394     * That structure does not yet include OES extensions (and we're
 395     * not sure whether it will).  If it does, all the OES_*
 396     * extensions below should mark the dependency. */
 397
 398    /* GL_ARB_texture_cube_map */
 399    { GL_TEXTURE_BINDING_CUBE_MAP_ARB, LOC_CUSTOM, TYPE_INT,
 400      TEXTURE_CUBE_INDEX, extra_ARB_texture_cube_map },
 401    { GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB, LOC_CUSTOM, TYPE_INT,
 402      offsetof(GLcontext, Const.MaxCubeTextureLevels),
 403      extra_ARB_texture_cube_map }, /* XXX: OES_texture_cube_map */
 404
 405    /* XXX: OES_blend_subtract */
 406    { GL_BLEND_SRC_RGB_EXT, CONTEXT_ENUM(Color.BlendSrcRGB) },
 407    { GL_BLEND_DST_RGB_EXT, CONTEXT_ENUM(Color.BlendDstRGB) },
 408    { GL_BLEND_SRC_ALPHA_EXT, CONTEXT_ENUM(Color.BlendSrcA) },
 409    { GL_BLEND_DST_ALPHA_EXT, CONTEXT_ENUM(Color.BlendDstA) },
 410
 411    /* GL_BLEND_EQUATION_RGB, which is what we're really after, is
 412     * defined identically to GL_BLEND_EQUATION. */
 413    { GL_BLEND_EQUATION, CONTEXT_ENUM(Color.BlendEquationRGB) },
 414    { GL_BLEND_EQUATION_ALPHA_EXT, CONTEXT_ENUM(Color.BlendEquationA) },
 415
 416    /* GL_ARB_texture_compression */
 417    { GL_NUM_COMPRESSED_TEXTURE_FORMATS_ARB, LOC_CUSTOM, TYPE_INT, 0 },
 418    { GL_COMPRESSED_TEXTURE_FORMATS_ARB, LOC_CUSTOM, TYPE_INT_N, 0 },
 419
 420    /* GL_ARB_multisample */
 421    { GL_SAMPLE_ALPHA_TO_COVERAGE_ARB,
 422      CONTEXT_BOOL(Multisample.SampleAlphaToCoverage) },
 423    { GL_SAMPLE_COVERAGE_ARB, CONTEXT_BOOL(Multisample.SampleCoverage) },
 424    { GL_SAMPLE_COVERAGE_VALUE_ARB,
 425      CONTEXT_FLOAT(Multisample.SampleCoverageValue) },
 426    { GL_SAMPLE_COVERAGE_INVERT_ARB,
 427      CONTEXT_BOOL(Multisample.SampleCoverageInvert) },
 428    { GL_SAMPLE_BUFFERS_ARB, BUFFER_INT(Visual.sampleBuffers) },
 429    { GL_SAMPLES_ARB, BUFFER_INT(Visual.samples) },
 430
 431    /* GL_SGIS_generate_mipmap */
 432    { GL_GENERATE_MIPMAP_HINT_SGIS, CONTEXT_ENUM(Hint.GenerateMipmap),
 433      extra_SGIS_generate_mipmap },
 434
 435    /* GL_ARB_vertex_buffer_object */
 436    { GL_ARRAY_BUFFER_BINDING_ARB, LOC_CUSTOM, TYPE_INT, 0 },
 437
 438    /* GL_ARB_vertex_buffer_object */
 439    /* GL_WEIGHT_ARRAY_BUFFER_BINDING_ARB - not supported */
 440    { GL_ELEMENT_ARRAY_BUFFER_BINDING_ARB, LOC_CUSTOM, TYPE_INT, 0,
 441      extra_ARB_vertex_buffer_object },
 442
 443    /* GL_OES_read_format */
 444    { GL_IMPLEMENTATION_COLOR_READ_TYPE_OES, LOC_CUSTOM, TYPE_INT, 0,
 445      extra_new_buffers_OES_read_format },
 446    { GL_IMPLEMENTATION_COLOR_READ_FORMAT_OES, LOC_CUSTOM, TYPE_INT, 0,
 447      extra_new_buffers_OES_read_format },
 448
 449    /* GL_EXT_framebuffer_object */
 450    { GL_FRAMEBUFFER_BINDING_EXT, BUFFER_INT(Name),
 451      extra_EXT_framebuffer_object },
 452    { GL_RENDERBUFFER_BINDING_EXT, LOC_CUSTOM, TYPE_INT, 0,
 453      extra_EXT_framebuffer_object },
 454    { GL_MAX_RENDERBUFFER_SIZE_EXT, CONTEXT_INT(Const.MaxRenderbufferSize),
 455      extra_EXT_framebuffer_object },
 456
 457    /* This entry isn't spec'ed for GLES 2, but is needed for Mesa's
 458     * GLSL: */
 459    { GL_MAX_CLIP_PLANES, CONTEXT_INT(Const.MaxClipPlanes) },
 460
 461 #if FEATURE_GL || FEATURE_ES1
 462    /* Enums in OpenGL and GLES1 */
 463    { 0, 0, TYPE_API_MASK, API_OPENGL_BIT | API_OPENGLES_BIT },
 464    { GL_LIGHT0, CONTEXT_BOOL(Light.Light[0].Enabled) },
 465    { GL_LIGHT1, CONTEXT_BOOL(Light.Light[1].Enabled) },
 466    { GL_LIGHT2, CONTEXT_BOOL(Light.Light[2].Enabled) },
 467    { GL_LIGHT3, CONTEXT_BOOL(Light.Light[3].Enabled) },
 468    { GL_LIGHT4, CONTEXT_BOOL(Light.Light[4].Enabled) },
 469    { GL_LIGHT5, CONTEXT_BOOL(Light.Light[5].Enabled) },
 470    { GL_LIGHT6, CONTEXT_BOOL(Light.Light[6].Enabled) },
 471    { GL_LIGHT7, CONTEXT_BOOL(Light.Light[7].Enabled) },
 472    { GL_LIGHTING, CONTEXT_BOOL(Light.Enabled) },
 473    { GL_LIGHT_MODEL_AMBIENT,
 474      CONTEXT_FIELD(Light.Model.Ambient[0], TYPE_FLOATN_4) },
 475    { GL_LIGHT_MODEL_TWO_SIDE, CONTEXT_BOOL(Light.Model.TwoSide) },
 476    { GL_ALPHA_TEST, CONTEXT_BOOL(Color.AlphaEnabled) },
 477    { GL_ALPHA_TEST_FUNC, CONTEXT_ENUM(Color.AlphaFunc) },
 478    { GL_ALPHA_TEST_REF, CONTEXT_FIELD(Color.AlphaRef, TYPE_FLOATN) },
 479    { GL_BLEND_DST, CONTEXT_ENUM(Color.BlendDstRGB) },
 480    { GL_CLIP_PLANE0, CONTEXT_BIT0(Transform.ClipPlanesEnabled) },
 481    { GL_CLIP_PLANE1, CONTEXT_BIT1(Transform.ClipPlanesEnabled) },
 482    { GL_CLIP_PLANE2, CONTEXT_BIT2(Transform.ClipPlanesEnabled) },
 483    { GL_CLIP_PLANE3, CONTEXT_BIT3(Transform.ClipPlanesEnabled) },
 484    { GL_CLIP_PLANE4, CONTEXT_BIT4(Transform.ClipPlanesEnabled) },
 485    { GL_CLIP_PLANE5, CONTEXT_BIT5(Transform.ClipPlanesEnabled) },
 486    { GL_COLOR_MATERIAL, CONTEXT_BOOL(Light.ColorMaterialEnabled) },
 487    { GL_CURRENT_COLOR,
 488      CONTEXT_FIELD(Current.Attrib[VERT_ATTRIB_COLOR0][0], TYPE_FLOATN_4),
 489      extra_flush_current },
 490    { GL_CURRENT_NORMAL,
 491      CONTEXT_FIELD(Current.Attrib[VERT_ATTRIB_NORMAL][0], TYPE_FLOATN_3),
 492      extra_flush_current },
 493    { GL_CURRENT_TEXTURE_COORDS, LOC_CUSTOM, TYPE_FLOAT_4, 0,
 494      extra_flush_current_valid_texture_unit },
 495    { GL_DISTANCE_ATTENUATION_EXT, CONTEXT_FLOAT3(Point.Params[0]) },
 496    { GL_FOG, CONTEXT_BOOL(Fog.Enabled) },
 497    { GL_FOG_COLOR, CONTEXT_FIELD(Fog.Color[0], TYPE_FLOATN_4) },
 498    { GL_FOG_DENSITY, CONTEXT_FLOAT(Fog.Density) },
 499    { GL_FOG_END, CONTEXT_FLOAT(Fog.End) },
 500    { GL_FOG_HINT, CONTEXT_ENUM(Hint.Fog) },
 501    { GL_FOG_MODE, CONTEXT_ENUM(Fog.Mode) },
 502    { GL_FOG_START, CONTEXT_FLOAT(Fog.Start) },
 503    { GL_LINE_SMOOTH, CONTEXT_BOOL(Line.SmoothFlag) },
 504    { GL_LINE_SMOOTH_HINT, CONTEXT_ENUM(Hint.LineSmooth) },
 505    { GL_LINE_WIDTH_RANGE, CONTEXT_FLOAT2(Const.MinLineWidthAA) },
 506    { GL_COLOR_LOGIC_OP, CONTEXT_BOOL(Color.ColorLogicOpEnabled) },
 507    { GL_LOGIC_OP_MODE, CONTEXT_ENUM(Color.LogicOp) },
 508    { GL_MATRIX_MODE, CONTEXT_ENUM(Transform.MatrixMode) },
 509    { GL_MAX_MODELVIEW_STACK_DEPTH, CONST(MAX_MODELVIEW_STACK_DEPTH) },
 510    { GL_MAX_PROJECTION_STACK_DEPTH, CONST(MAX_PROJECTION_STACK_DEPTH) },
 511    { GL_MAX_TEXTURE_STACK_DEPTH, CONST(MAX_TEXTURE_STACK_DEPTH), },
 512    { GL_MODELVIEW_MATRIX, CONTEXT_MATRIX(ModelviewMatrixStack.Top) },
 513    { GL_MODELVIEW_STACK_DEPTH, LOC_CUSTOM, TYPE_INT,
 514      offsetof(GLcontext, ModelviewMatrixStack.Depth) },
 515    { GL_NORMALIZE, CONTEXT_BOOL(Transform.Normalize) },
 516    { GL_PACK_SKIP_IMAGES_EXT, CONTEXT_INT(Pack.SkipImages) },
 517    { GL_PERSPECTIVE_CORRECTION_HINT, CONTEXT_ENUM(Hint.PerspectiveCorrection) },
 518    { GL_POINT_SIZE, CONTEXT_FLOAT(Point.Size) },
 519    { GL_POINT_SIZE_RANGE, CONTEXT_FLOAT2(Const.MinPointSizeAA) },
 520    { GL_POINT_SMOOTH, CONTEXT_BOOL(Point.SmoothFlag) },
 521    { GL_POINT_SMOOTH_HINT, CONTEXT_ENUM(Hint.PointSmooth) },
 522    { GL_POINT_SIZE_MIN_EXT, CONTEXT_FLOAT(Point.MinSize) },
 523    { GL_POINT_SIZE_MAX_EXT, CONTEXT_FLOAT(Point.MaxSize) },
 524    { GL_POINT_FADE_THRESHOLD_SIZE_EXT, CONTEXT_FLOAT(Point.Threshold) },
 525    { GL_PROJECTION_MATRIX, CONTEXT_MATRIX(ProjectionMatrixStack.Top) },
 526    { GL_PROJECTION_STACK_DEPTH, LOC_CUSTOM, TYPE_INT,
 527      offsetof(GLcontext, ProjectionMatrixStack.Depth) },
 528    { GL_RESCALE_NORMAL, CONTEXT_BOOL(Transform.RescaleNormals) },
 529    { GL_SHADE_MODEL, CONTEXT_ENUM(Light.ShadeModel) },
 530    { GL_TEXTURE_2D, LOC_CUSTOM, TYPE_BOOLEAN, 0 },
 531    { GL_TEXTURE_MATRIX, LOC_CUSTOM, TYPE_MATRIX, 0, extra_valid_texture_unit },
 532    { GL_TEXTURE_STACK_DEPTH, LOC_CUSTOM, TYPE_INT, 0,
 533      extra_valid_texture_unit  },
 534
 535    { GL_VERTEX_ARRAY, ARRAY_BOOL(Vertex.Enabled) },
 536    { GL_VERTEX_ARRAY_SIZE, ARRAY_INT(Vertex.Size) },
 537    { GL_VERTEX_ARRAY_TYPE, ARRAY_ENUM(Vertex.Type) },
 538    { GL_VERTEX_ARRAY_STRIDE, ARRAY_INT(Vertex.Stride) },
 539    { GL_NORMAL_ARRAY, ARRAY_ENUM(Normal.Enabled) },
 540    { GL_NORMAL_ARRAY_TYPE, ARRAY_ENUM(Normal.Type) },
 541    { GL_NORMAL_ARRAY_STRIDE, ARRAY_INT(Normal.Stride) },
 542    { GL_COLOR_ARRAY, ARRAY_BOOL(Color.Enabled) },
 543    { GL_COLOR_ARRAY_SIZE, ARRAY_INT(Color.Size) },
 544    { GL_COLOR_ARRAY_TYPE, ARRAY_ENUM(Color.Type) },
 545    { GL_COLOR_ARRAY_STRIDE, ARRAY_INT(Color.Stride) },
 546    { GL_TEXTURE_COORD_ARRAY,
 547      LOC_CUSTOM, TYPE_BOOLEAN, offsetof(struct gl_client_array, Enabled) },
 548    { GL_TEXTURE_COORD_ARRAY_SIZE,
 549      LOC_CUSTOM, TYPE_BOOLEAN, offsetof(struct gl_client_array, Size) },
 550    { GL_TEXTURE_COORD_ARRAY_TYPE,
 551      LOC_CUSTOM, TYPE_BOOLEAN, offsetof(struct gl_client_array, Type) },
 552    { GL_TEXTURE_COORD_ARRAY_STRIDE,
 553      LOC_CUSTOM, TYPE_BOOLEAN, offsetof(struct gl_client_array, Stride) },
 554
 555    /* GL_ARB_multitexture */
 556    { GL_MAX_TEXTURE_UNITS_ARB,
 557      CONTEXT_INT(Const.MaxTextureUnits), extra_ARB_multitexture },
 558    { GL_CLIENT_ACTIVE_TEXTURE_ARB,
 559      LOC_CUSTOM, TYPE_INT, 0, extra_ARB_multitexture },
 560
 561    /* GL_ARB_texture_cube_map */
 562    { GL_TEXTURE_CUBE_MAP_ARB, LOC_CUSTOM, TYPE_BOOLEAN, 0 },
 563    /* S, T, and R are always set at the same time */
 564    { GL_TEXTURE_GEN_STR_OES, LOC_TEXUNIT, TYPE_BIT_0,
 565      offsetof(struct gl_texture_unit, TexGenEnabled) },
 566
 567    /* GL_ARB_multisample */
 568    { GL_MULTISAMPLE_ARB, CONTEXT_BOOL(Multisample.Enabled) },
 569    { GL_SAMPLE_ALPHA_TO_ONE_ARB, CONTEXT_BOOL(Multisample.SampleAlphaToOne) },
 570
 571    /* GL_ARB_vertex_buffer_object */
 572    { GL_VERTEX_ARRAY_BUFFER_BINDING_ARB, LOC_CUSTOM, TYPE_INT,
 573      offsetof(struct gl_array_object, Vertex.BufferObj) },
 574    { GL_NORMAL_ARRAY_BUFFER_BINDING_ARB, LOC_CUSTOM, TYPE_INT,
 575      offsetof(struct gl_array_object, Normal.BufferObj) },
 576    { GL_COLOR_ARRAY_BUFFER_BINDING_ARB, LOC_CUSTOM, TYPE_INT,
 577      offsetof(struct gl_array_object, Color.BufferObj) },
 578    { GL_TEXTURE_COORD_ARRAY_BUFFER_BINDING_ARB, LOC_CUSTOM, TYPE_INT, 0 },
 579
 580    /* GL_OES_point_sprite */
 581    { GL_POINT_SPRITE_NV,
 582      CONTEXT_BOOL(Point.PointSprite),
 583      extra_NV_point_sprite_ARB_point_sprite },
 584
 585    /* GL_ARB_fragment_shader */
 586    { GL_MAX_FRAGMENT_UNIFORM_COMPONENTS_ARB,
 587      CONTEXT_INT(Const.FragmentProgram.MaxUniformComponents),
 588      extra_ARB_fragment_shader },
 589
 590    /* GL_ARB_vertex_shader */
 591    { GL_MAX_VERTEX_UNIFORM_COMPONENTS_ARB,
 592      CONTEXT_INT(Const.VertexProgram.MaxUniformComponents),
 593      extra_ARB_vertex_shader },
 594    { GL_MAX_VARYING_FLOATS_ARB, LOC_CUSTOM, TYPE_INT, 0,
 595      extra_ARB_vertex_shader },
 596
 597    /* GL_EXT_texture_lod_bias */
 598    { GL_MAX_TEXTURE_LOD_BIAS_EXT, CONTEXT_FLOAT(Const.MaxTextureLodBias),
 599          extra_EXT_texture_lod_bias },
 600
 601    /* GL_EXT_texture_filter_anisotropic */
 602    { GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT,
 603      CONTEXT_FLOAT(Const.MaxTextureMaxAnisotropy),
 604      extra_EXT_texture_filter_anisotropic },
 605 #endif /* FEATURE_GL || FEATURE_ES1 */
 606
 607 #if FEATURE_ES1
 608    { 0, 0, TYPE_API_MASK, API_OPENGLES_BIT },
 609    /* XXX: OES_matrix_get */
 610    { GL_MODELVIEW_MATRIX_FLOAT_AS_INT_BITS_OES },
 611    { GL_PROJECTION_MATRIX_FLOAT_AS_INT_BITS_OES },
 612    { GL_TEXTURE_MATRIX_FLOAT_AS_INT_BITS_OES },
 613
 614    /* OES_point_size_array */
 615    { GL_POINT_SIZE_ARRAY_OES, ARRAY_FIELD(PointSize.Enabled, TYPE_BOOLEAN) },
 616    { GL_POINT_SIZE_ARRAY_TYPE_OES, ARRAY_FIELD(PointSize.Type, TYPE_ENUM) },
 617    { GL_POINT_SIZE_ARRAY_STRIDE_OES, ARRAY_FIELD(PointSize.Stride, TYPE_INT) },
 618    { GL_POINT_SIZE_ARRAY_BUFFER_BINDING_OES, LOC_CUSTOM, TYPE_INT, 0 },
 619 #endif /* FEATURE_ES1 */
 620
 621 #if FEATURE_GL || FEATURE_ES2
 622    { 0, 0, TYPE_API_MASK, API_OPENGL_BIT | API_OPENGLES2_BIT },
 623    /* This entry isn't spec'ed for GLES 2, but is needed for Mesa's GLSL: */
 624    { GL_MAX_LIGHTS, CONTEXT_INT(Const.MaxLights) },
 625    { GL_MAX_TEXTURE_COORDS_ARB, /* == GL_MAX_TEXTURE_COORDS_NV */
 626      CONTEXT_INT(Const.MaxTextureCoordUnits),
 627      extra_ARB_fragment_program_NV_fragment_program },
 628
 629    /* GL_ARB_draw_buffers */
 630    { GL_MAX_DRAW_BUFFERS_ARB, CONTEXT_INT(Const.MaxDrawBuffers) },
 631
 632    { GL_BLEND_COLOR_EXT, CONTEXT_FIELD(Color.BlendColor[0], TYPE_FLOATN_4) },
 633    /* GL_ARB_fragment_program */
 634    { GL_MAX_TEXTURE_IMAGE_UNITS_ARB, /* == GL_MAX_TEXTURE_IMAGE_UNITS_NV */
 635      CONTEXT_INT(Const.MaxTextureImageUnits),
 636      extra_ARB_fragment_program_NV_fragment_program },
 637    { GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS_ARB,
 638      CONTEXT_INT(Const.MaxVertexTextureImageUnits), extra_ARB_vertex_shader },
 639    { GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS_ARB,
 640      CONTEXT_INT(Const.MaxCombinedTextureImageUnits),
 641      extra_ARB_vertex_shader },
 642
 643    /* GL_ARB_shader_objects
 644     * Actually, this token isn't part of GL_ARB_shader_objects, but is
 645     * close enough for now. */
 646    { GL_CURRENT_PROGRAM, LOC_CUSTOM, TYPE_INT, 0, extra_ARB_shader_objects },
 647
 648    /* OpenGL 2.0 */
 649    { GL_STENCIL_BACK_FUNC, CONTEXT_ENUM(Stencil.Function[1]) },
 650    { GL_STENCIL_BACK_VALUE_MASK, CONTEXT_INT(Stencil.ValueMask[1]) },
 651    { GL_STENCIL_BACK_WRITEMASK, CONTEXT_INT(Stencil.WriteMask[1]) },
 652    { GL_STENCIL_BACK_REF, CONTEXT_INT(Stencil.Ref[1]) },
 653    { GL_STENCIL_BACK_FAIL, CONTEXT_ENUM(Stencil.FailFunc[1]) },
 654    { GL_STENCIL_BACK_PASS_DEPTH_FAIL, CONTEXT_ENUM(Stencil.ZFailFunc[1]) },
 655    { GL_STENCIL_BACK_PASS_DEPTH_PASS, CONTEXT_ENUM(Stencil.ZPassFunc[1]) },
 656
 657    { GL_MAX_VERTEX_ATTRIBS_ARB,
 658      CONTEXT_INT(Const.VertexProgram.MaxAttribs), extra_ARB_vertex_program },
 659
 660    /* OES_texture_3D */
 661    { GL_TEXTURE_BINDING_3D, LOC_CUSTOM, TYPE_INT, TEXTURE_3D_INDEX },
 662    { GL_MAX_3D_TEXTURE_SIZE, LOC_CUSTOM, TYPE_INT,
 663      offsetof(GLcontext, Const.Max3DTextureLevels) },
 664
 665    /* GL_ARB_fragment_shader/OES_standard_derivatives */
 666    { GL_FRAGMENT_SHADER_DERIVATIVE_HINT_ARB,
 667      CONTEXT_ENUM(Hint.FragmentShaderDerivative), extra_ARB_fragment_shader },
 668 #endif /* FEATURE_GL || FEATURE_ES2 */
 669
 670 #if FEATURE_ES2
 671    /* Enums unique to OpenGL ES 2.0 */
 672    { 0, 0, TYPE_API_MASK, API_OPENGLES2_BIT },
 673    { GL_MAX_FRAGMENT_UNIFORM_VECTORS, LOC_CUSTOM, TYPE_INT,
 674      offsetof(GLcontext, Const.FragmentProgram.MaxUniformComponents) },
 675    { GL_MAX_VARYING_VECTORS, LOC_CUSTOM, TYPE_INT,
 676      offsetof(GLcontext, Const.MaxVarying) },
 677    { GL_MAX_VERTEX_UNIFORM_VECTORS, LOC_CUSTOM, TYPE_INT,
 678      offsetof(GLcontext, Const.VertexProgram.MaxUniformComponents) },
 679    { GL_SHADER_COMPILER, CONST(1) },
 680    /* OES_get_program_binary */
 681    { GL_NUM_SHADER_BINARY_FORMATS, CONST(0) },
 682    { GL_SHADER_BINARY_FORMATS, CONST(0) },
 683 #endif /* FEATURE_ES2 */
 684
 685 #if FEATURE_GL
 686    /* Remaining enums are only in OpenGL */
 687    { 0, 0, TYPE_API_MASK, API_OPENGL_BIT },
 688    { GL_ACCUM_RED_BITS, BUFFER_INT(Visual.accumRedBits) },
 689    { GL_ACCUM_GREEN_BITS, BUFFER_INT(Visual.accumGreenBits) },
 690    { GL_ACCUM_BLUE_BITS, BUFFER_INT(Visual.accumBlueBits) },
 691    { GL_ACCUM_ALPHA_BITS, BUFFER_INT(Visual.accumAlphaBits) },
 692    { GL_ACCUM_CLEAR_VALUE, CONTEXT_FIELD(Accum.ClearColor[0], TYPE_FLOATN_4) },
 693    { GL_ALPHA_BIAS, CONTEXT_FLOAT(Pixel.AlphaBias) },
 694    { GL_ALPHA_SCALE, CONTEXT_FLOAT(Pixel.AlphaScale) },
 695    { GL_ATTRIB_STACK_DEPTH, CONTEXT_INT(AttribStackDepth) },
 696    { GL_AUTO_NORMAL, CONTEXT_BOOL(Eval.AutoNormal) },
 697    { GL_AUX_BUFFERS, BUFFER_INT(Visual.numAuxBuffers) },
 698    { GL_BLUE_BIAS, CONTEXT_FLOAT(Pixel.BlueBias) },
 699    { GL_BLUE_SCALE, CONTEXT_FLOAT(Pixel.BlueScale) },
 700    { GL_CLIENT_ATTRIB_STACK_DEPTH, CONTEXT_INT(ClientAttribStackDepth) },
 701    { GL_COLOR_MATERIAL_FACE, CONTEXT_ENUM(Light.ColorMaterialFace) },
 702    { GL_COLOR_MATERIAL_PARAMETER, CONTEXT_ENUM(Light.ColorMaterialMode) },
 703    { GL_CURRENT_INDEX,
 704      CONTEXT_FLOAT(Current.Attrib[VERT_ATTRIB_COLOR_INDEX][0]),
 705      extra_flush_current },
 706    { GL_CURRENT_RASTER_COLOR,
 707      CONTEXT_FIELD(Current.RasterColor[0], TYPE_FLOATN_4) },
 708    { GL_CURRENT_RASTER_DISTANCE, CONTEXT_FLOAT(Current.RasterDistance) },
 709    { GL_CURRENT_RASTER_INDEX, CONST(1) },
 710    { GL_CURRENT_RASTER_POSITION, CONTEXT_FLOAT4(Current.RasterPos[0]) },
 711    { GL_CURRENT_RASTER_SECONDARY_COLOR,
 712      CONTEXT_FIELD(Current.RasterSecondaryColor[0], TYPE_FLOATN_4) },
 713    { GL_CURRENT_RASTER_TEXTURE_COORDS, LOC_CUSTOM, TYPE_FLOAT_4, 0,
 714      extra_valid_texture_unit },
 715    { GL_CURRENT_RASTER_POSITION_VALID, CONTEXT_BOOL(Current.RasterPosValid) },
 716    { GL_DEPTH_BIAS, CONTEXT_FLOAT(Pixel.DepthBias) },
 717    { GL_DEPTH_SCALE, CONTEXT_FLOAT(Pixel.DepthScale) },
 718    { GL_DOUBLEBUFFER, BUFFER_INT(Visual.doubleBufferMode) },
 719    { GL_DRAW_BUFFER, BUFFER_ENUM(ColorDrawBuffer[0]) },
 720    { GL_EDGE_FLAG, LOC_CUSTOM, TYPE_BOOLEAN, 0 },
 721    { GL_FEEDBACK_BUFFER_SIZE, CONTEXT_INT(Feedback.BufferSize) },
 722    { GL_FEEDBACK_BUFFER_TYPE, CONTEXT_ENUM(Feedback.Type) },
 723    { GL_FOG_INDEX, CONTEXT_FLOAT(Fog.Index) },
 724    { GL_GREEN_BIAS, CONTEXT_FLOAT(Pixel.GreenBias) },
 725    { GL_GREEN_SCALE, CONTEXT_FLOAT(Pixel.GreenScale) },
 726    { GL_INDEX_BITS, BUFFER_INT(Visual.indexBits), extra_new_buffers },
 727    { GL_INDEX_CLEAR_VALUE, CONTEXT_INT(Color.ClearIndex) },
 728    { GL_INDEX_MODE, CONST(0) },
 729    { GL_INDEX_OFFSET, CONTEXT_INT(Pixel.IndexOffset) },
 730    { GL_INDEX_SHIFT, CONTEXT_INT(Pixel.IndexShift) },
 731    { GL_INDEX_WRITEMASK, CONTEXT_INT(Color.IndexMask) },
 732    { GL_LIGHT_MODEL_COLOR_CONTROL, CONTEXT_ENUM(Light.Model.ColorControl) },
 733    { GL_LIGHT_MODEL_LOCAL_VIEWER, CONTEXT_BOOL(Light.Model.LocalViewer) },
 734    { GL_LINE_STIPPLE, CONTEXT_BOOL(Line.StippleFlag) },
 735    { GL_LINE_STIPPLE_PATTERN, LOC_CUSTOM, TYPE_INT, 0 },
 736    { GL_LINE_STIPPLE_REPEAT, CONTEXT_INT(Line.StippleFactor) },
 737    { GL_LINE_WIDTH_GRANULARITY, CONTEXT_FLOAT(Const.LineWidthGranularity) },
 738    { GL_LIST_BASE, CONTEXT_INT(List.ListBase) },
 739    { GL_LIST_INDEX, LOC_CUSTOM, TYPE_INT, 0 },
 740    { GL_LIST_MODE, LOC_CUSTOM, TYPE_ENUM, 0 },
 741    { GL_INDEX_LOGIC_OP, CONTEXT_BOOL(Color.IndexLogicOpEnabled) },
 742    { GL_MAP1_COLOR_4, CONTEXT_BOOL(Eval.Map1Color4) },
 743    { GL_MAP1_GRID_DOMAIN, CONTEXT_FLOAT2(Eval.MapGrid1u1) },
 744    { GL_MAP1_GRID_SEGMENTS, CONTEXT_INT(Eval.MapGrid1un) },
 745    { GL_MAP1_INDEX, CONTEXT_BOOL(Eval.Map1Index) },
 746    { GL_MAP1_NORMAL, CONTEXT_BOOL(Eval.Map1Normal) },
 747    { GL_MAP1_TEXTURE_COORD_1, CONTEXT_BOOL(Eval.Map1TextureCoord1) },
 748    { GL_MAP1_TEXTURE_COORD_2, CONTEXT_BOOL(Eval.Map1TextureCoord2) },
 749    { GL_MAP1_TEXTURE_COORD_3, CONTEXT_BOOL(Eval.Map1TextureCoord3) },
 750    { GL_MAP1_TEXTURE_COORD_4, CONTEXT_BOOL(Eval.Map1TextureCoord4) },
 751    { GL_MAP1_VERTEX_3, CONTEXT_BOOL(Eval.Map1Vertex3) },
 752    { GL_MAP1_VERTEX_4, CONTEXT_BOOL(Eval.Map1Vertex4) },
 753    { GL_MAP2_COLOR_4, CONTEXT_BOOL(Eval.Map2Color4) },
 754    { GL_MAP2_GRID_DOMAIN, LOC_CUSTOM, TYPE_FLOAT_4, 0 },
 755    { GL_MAP2_GRID_SEGMENTS, CONTEXT_INT2(Eval.MapGrid2un) },
 756    { GL_MAP2_INDEX, CONTEXT_BOOL(Eval.Map2Index) },
 757    { GL_MAP2_NORMAL, CONTEXT_BOOL(Eval.Map2Normal) },
 758    { GL_MAP2_TEXTURE_COORD_1, CONTEXT_BOOL(Eval.Map2TextureCoord1) },
 759    { GL_MAP2_TEXTURE_COORD_2, CONTEXT_BOOL(Eval.Map2TextureCoord2) },
 760    { GL_MAP2_TEXTURE_COORD_3, CONTEXT_BOOL(Eval.Map2TextureCoord3) },
 761    { GL_MAP2_TEXTURE_COORD_4, CONTEXT_BOOL(Eval.Map2TextureCoord4) },
 762    { GL_MAP2_VERTEX_3, CONTEXT_BOOL(Eval.Map2Vertex3) },
 763    { GL_MAP2_VERTEX_4, CONTEXT_BOOL(Eval.Map2Vertex4) },
 764    { GL_MAP_COLOR, CONTEXT_BOOL(Pixel.MapColorFlag) },
 765    { GL_MAP_STENCIL, CONTEXT_BOOL(Pixel.MapStencilFlag) },
 766    { GL_MAX_ATTRIB_STACK_DEPTH, CONST(MAX_ATTRIB_STACK_DEPTH) },
 767    { GL_MAX_CLIENT_ATTRIB_STACK_DEPTH, CONST(MAX_CLIENT_ATTRIB_STACK_DEPTH) },
 768
 769    { GL_MAX_EVAL_ORDER, CONST(MAX_EVAL_ORDER) },
 770    { GL_MAX_LIST_NESTING, CONST(MAX_LIST_NESTING) },
 771    { GL_MAX_NAME_STACK_DEPTH, CONST(MAX_NAME_STACK_DEPTH) },
 772    { GL_MAX_PIXEL_MAP_TABLE, CONST(MAX_PIXEL_MAP_TABLE) },
 773    { GL_NAME_STACK_DEPTH, CONTEXT_INT(Select.NameStackDepth) },
 774    { GL_PACK_LSB_FIRST, CONTEXT_BOOL(Pack.LsbFirst) },
 775    { GL_PACK_ROW_LENGTH, CONTEXT_INT(Pack.RowLength) },
 776    { GL_PACK_SKIP_PIXELS, CONTEXT_INT(Pack.SkipPixels) },
 777    { GL_PACK_SKIP_ROWS, CONTEXT_INT(Pack.SkipRows) },
 778    { GL_PACK_SWAP_BYTES, CONTEXT_BOOL(Pack.SwapBytes) },
 779    { GL_PACK_IMAGE_HEIGHT_EXT, CONTEXT_INT(Pack.ImageHeight) },
 780    { GL_PACK_INVERT_MESA, CONTEXT_BOOL(Pack.Invert) },
 781    { GL_PIXEL_MAP_A_TO_A_SIZE, CONTEXT_INT(PixelMaps.AtoA.Size) },
 782    { GL_PIXEL_MAP_B_TO_B_SIZE, CONTEXT_INT(PixelMaps.BtoB.Size) },
 783    { GL_PIXEL_MAP_G_TO_G_SIZE, CONTEXT_INT(PixelMaps.GtoG.Size) },
 784    { GL_PIXEL_MAP_I_TO_A_SIZE, CONTEXT_INT(PixelMaps.ItoA.Size) },
 785    { GL_PIXEL_MAP_I_TO_B_SIZE, CONTEXT_INT(PixelMaps.ItoB.Size) },
 786    { GL_PIXEL_MAP_I_TO_G_SIZE, CONTEXT_INT(PixelMaps.ItoG.Size) },
 787    { GL_PIXEL_MAP_I_TO_I_SIZE, CONTEXT_INT(PixelMaps.ItoI.Size) },
 788    { GL_PIXEL_MAP_I_TO_R_SIZE, CONTEXT_INT(PixelMaps.ItoR.Size) },
 789    { GL_PIXEL_MAP_R_TO_R_SIZE, CONTEXT_INT(PixelMaps.RtoR.Size) },
 790    { GL_PIXEL_MAP_S_TO_S_SIZE, CONTEXT_INT(PixelMaps.StoS.Size) },
 791    { GL_POINT_SIZE_GRANULARITY, CONTEXT_FLOAT(Const.PointSizeGranularity) },
 792    { GL_POLYGON_MODE, CONTEXT_ENUM2(Polygon.FrontMode) },
 793    { GL_POLYGON_OFFSET_BIAS_EXT, CONTEXT_FLOAT(Polygon.OffsetUnits) },
 794    { GL_POLYGON_OFFSET_POINT, CONTEXT_BOOL(Polygon.OffsetPoint) },
 795    { GL_POLYGON_OFFSET_LINE, CONTEXT_BOOL(Polygon.OffsetLine) },
 796    { GL_POLYGON_SMOOTH, CONTEXT_BOOL(Polygon.SmoothFlag) },
 797    { GL_POLYGON_SMOOTH_HINT, CONTEXT_ENUM(Hint.PolygonSmooth) },
 798    { GL_POLYGON_STIPPLE, CONTEXT_BOOL(Polygon.StippleFlag) },
 799    { GL_READ_BUFFER, LOC_CUSTOM, TYPE_ENUM },
 800    { GL_RED_BIAS, CONTEXT_FLOAT(Pixel.RedBias) },
 801    { GL_RED_SCALE, CONTEXT_FLOAT(Pixel.RedScale) },
 802    { GL_RENDER_MODE, CONTEXT_ENUM(RenderMode) },
 803    { GL_RGBA_MODE, CONST(1) },
 804    { GL_SELECTION_BUFFER_SIZE, CONTEXT_INT(Select.BufferSize) },
 805    { GL_SHARED_TEXTURE_PALETTE_EXT, CONTEXT_BOOL(Texture.SharedPalette) },
 806
 807    { GL_STEREO, BUFFER_INT(Visual.stereoMode) },
 808
 809    { GL_TEXTURE_1D, LOC_CUSTOM, TYPE_BOOLEAN, 0 },
 810    { GL_TEXTURE_3D, LOC_CUSTOM, TYPE_BOOLEAN, 0 },
 811    { GL_TEXTURE_1D_ARRAY_EXT, LOC_CUSTOM, TYPE_BOOLEAN, 0 },
 812    { GL_TEXTURE_2D_ARRAY_EXT, LOC_CUSTOM, TYPE_BOOLEAN, 0 },
 813
 814    { GL_TEXTURE_BINDING_1D, LOC_CUSTOM, TYPE_INT, TEXTURE_1D_INDEX },
 815    { GL_TEXTURE_BINDING_1D_ARRAY, LOC_CUSTOM, TYPE_INT,
 816      TEXTURE_1D_ARRAY_INDEX, extra_MESA_texture_array },
 817    { GL_TEXTURE_BINDING_2D_ARRAY, LOC_CUSTOM, TYPE_INT,
 818      TEXTURE_1D_ARRAY_INDEX, extra_MESA_texture_array },
 819    { GL_MAX_ARRAY_TEXTURE_LAYERS_EXT,
 820      CONTEXT_INT(Const.MaxArrayTextureLayers), extra_MESA_texture_array },
 821
 822    { GL_TEXTURE_GEN_S, LOC_TEXUNIT, TYPE_BIT_0,
 823      offsetof(struct gl_texture_unit, TexGenEnabled) },
 824    { GL_TEXTURE_GEN_T, LOC_TEXUNIT, TYPE_BIT_1,
 825      offsetof(struct gl_texture_unit, TexGenEnabled) },
 826    { GL_TEXTURE_GEN_R, LOC_TEXUNIT, TYPE_BIT_2,
 827      offsetof(struct gl_texture_unit, TexGenEnabled) },
 828    { GL_TEXTURE_GEN_Q, LOC_TEXUNIT, TYPE_BIT_3,
 829      offsetof(struct gl_texture_unit, TexGenEnabled) },
 830    { GL_UNPACK_LSB_FIRST, CONTEXT_BOOL(Unpack.LsbFirst) },
 831    { GL_UNPACK_ROW_LENGTH, CONTEXT_INT(Unpack.RowLength) },
 832    { GL_UNPACK_SKIP_PIXELS, CONTEXT_INT(Unpack.SkipPixels) },
 833    { GL_UNPACK_SKIP_ROWS, CONTEXT_INT(Unpack.SkipRows) },
 834    { GL_UNPACK_SWAP_BYTES, CONTEXT_BOOL(Unpack.SwapBytes) },
 835    { GL_UNPACK_SKIP_IMAGES_EXT, CONTEXT_INT(Unpack.SkipImages) },
 836    { GL_UNPACK_IMAGE_HEIGHT_EXT, CONTEXT_INT(Unpack.ImageHeight) },
 837    { GL_UNPACK_CLIENT_STORAGE_APPLE, CONTEXT_BOOL(Unpack.ClientStorage) },
 838    { GL_ZOOM_X, CONTEXT_FLOAT(Pixel.ZoomX) },
 839    { GL_ZOOM_Y, CONTEXT_FLOAT(Pixel.ZoomY) },
 840
 841    /* Vertex arrays */
 842    { GL_VERTEX_ARRAY_COUNT_EXT, CONST(0) },
 843    { GL_NORMAL_ARRAY_COUNT_EXT, CONST(0) },
 844    { GL_COLOR_ARRAY_COUNT_EXT, CONST(0) },
 845    { GL_INDEX_ARRAY, ARRAY_BOOL(Index.Enabled) },
 846    { GL_INDEX_ARRAY_TYPE, ARRAY_ENUM(Index.Type) },
 847    { GL_INDEX_ARRAY_STRIDE, ARRAY_INT(Index.Stride) },
 848    { GL_INDEX_ARRAY_COUNT_EXT, CONST(0) },
 849    { GL_TEXTURE_COORD_ARRAY_COUNT_EXT, CONST(0) },
 850    { GL_EDGE_FLAG_ARRAY, ARRAY_BOOL(EdgeFlag.Enabled) },
 851    { GL_EDGE_FLAG_ARRAY_STRIDE, ARRAY_INT(EdgeFlag.Stride) },
 852    { GL_EDGE_FLAG_ARRAY_COUNT_EXT, CONST(0) },
 853
 854    /* GL_ARB_texture_compression */
 855    { GL_TEXTURE_COMPRESSION_HINT_ARB, CONTEXT_INT(Hint.TextureCompression) },
 856
 857    /* GL_EXT_compiled_vertex_array */
 858    { GL_ARRAY_ELEMENT_LOCK_FIRST_EXT, CONTEXT_INT(Array.LockFirst),
 859      extra_EXT_compiled_vertex_array },
 860    { GL_ARRAY_ELEMENT_LOCK_COUNT_EXT, CONTEXT_INT(Array.LockCount),
 861      extra_EXT_compiled_vertex_array },
 862
 863    /* GL_ARB_transpose_matrix */
 864    { GL_TRANSPOSE_COLOR_MATRIX_ARB, CONTEXT_MATRIX_T(ColorMatrixStack.Top) },
 865    { GL_TRANSPOSE_MODELVIEW_MATRIX_ARB,
 866      CONTEXT_MATRIX_T(ModelviewMatrixStack) },
 867    { GL_TRANSPOSE_PROJECTION_MATRIX_ARB,
 868      CONTEXT_MATRIX_T(ProjectionMatrixStack.Top) },
 869    { GL_TRANSPOSE_TEXTURE_MATRIX_ARB, CONTEXT_MATRIX_T(TextureMatrixStack) },
 870
 871    /* GL_SGI_color_matrix (also in 1.2 imaging) */
 872    { GL_COLOR_MATRIX_SGI, CONTEXT_MATRIX(ColorMatrixStack.Top) },
 873    { GL_COLOR_MATRIX_STACK_DEPTH_SGI, LOC_CUSTOM, TYPE_INT,
 874      offsetof(GLcontext, ColorMatrixStack.Depth) },
 875    { GL_MAX_COLOR_MATRIX_STACK_DEPTH_SGI,
 876      CONST(MAX_COLOR_STACK_DEPTH) },
 877    { GL_POST_COLOR_MATRIX_RED_SCALE_SGI,
 878      CONTEXT_FLOAT(Pixel.PostColorMatrixScale[0]) },
 879    { GL_POST_COLOR_MATRIX_GREEN_SCALE_SGI,
 880      CONTEXT_FLOAT(Pixel.PostColorMatrixScale[1]) },
 881    { GL_POST_COLOR_MATRIX_BLUE_SCALE_SGI,
 882      CONTEXT_FLOAT(Pixel.PostColorMatrixScale[2]) },
 883    { GL_POST_COLOR_MATRIX_ALPHA_SCALE_SGI,
 884      CONTEXT_FLOAT(Pixel.PostColorMatrixScale[3]) },
 885    { GL_POST_COLOR_MATRIX_RED_BIAS_SGI,
 886      CONTEXT_FLOAT(Pixel.PostColorMatrixBias[0]) },
 887    { GL_POST_COLOR_MATRIX_GREEN_BIAS_SGI,
 888      CONTEXT_FLOAT(Pixel.PostColorMatrixBias[1]) },
 889    { GL_POST_COLOR_MATRIX_BLUE_BIAS_SGI,
 890      CONTEXT_FLOAT(Pixel.PostColorMatrixBias[2]) },
 891    { GL_POST_COLOR_MATRIX_ALPHA_BIAS_SGI,
 892      CONTEXT_FLOAT(Pixel.PostColorMatrixBias[3]) },
 893
 894    /* GL_EXT_convolution (also in 1.2 imaging) */
 895    { GL_CONVOLUTION_1D_EXT, CONTEXT_BOOL(Pixel.Convolution1DEnabled),
 896      extra_EXT_convolution },
 897    { GL_CONVOLUTION_2D_EXT, CONTEXT_BOOL(Pixel.Convolution2DEnabled),
 898      extra_EXT_convolution },
 899    { GL_SEPARABLE_2D_EXT, CONTEXT_BOOL(Pixel.Separable2DEnabled),
 900      extra_EXT_convolution },
 901    { GL_POST_CONVOLUTION_RED_SCALE_EXT,
 902      CONTEXT_FLOAT(Pixel.PostConvolutionScale[0]),
 903      extra_EXT_convolution },
 904    { GL_POST_CONVOLUTION_GREEN_SCALE_EXT,
 905      CONTEXT_FLOAT(Pixel.PostConvolutionScale[1]),
 906      extra_EXT_convolution },
 907    { GL_POST_CONVOLUTION_BLUE_SCALE_EXT,
 908      CONTEXT_FLOAT(Pixel.PostConvolutionScale[2]),
 909      extra_EXT_convolution },
 910    { GL_POST_CONVOLUTION_ALPHA_SCALE_EXT,
 911      CONTEXT_FLOAT(Pixel.PostConvolutionScale[3]),
 912      extra_EXT_convolution },
 913    { GL_POST_CONVOLUTION_RED_BIAS_EXT,
 914      CONTEXT_FLOAT(Pixel.PostConvolutionBias[0]),
 915      extra_EXT_convolution },
 916    { GL_POST_CONVOLUTION_GREEN_BIAS_EXT,
 917      CONTEXT_FLOAT(Pixel.PostConvolutionBias[1]),
 918      extra_EXT_convolution },
 919    { GL_POST_CONVOLUTION_BLUE_BIAS_EXT,
 920      CONTEXT_FLOAT(Pixel.PostConvolutionBias[2]),
 921      extra_EXT_convolution },
 922    { GL_POST_CONVOLUTION_ALPHA_BIAS_EXT,
 923      CONTEXT_FLOAT(Pixel.PostConvolutionBias[3]),
 924      extra_EXT_convolution },
 925
 926    /* GL_EXT_histogram / GL_ARB_imaging */
 927    { GL_HISTOGRAM, CONTEXT_BOOL(Pixel.HistogramEnabled),
 928      extra_EXT_histogram },
 929    { GL_MINMAX, CONTEXT_BOOL(Pixel.MinMaxEnabled), extra_EXT_histogram },
 930
 931    /* GL_SGI_color_table / GL_ARB_imaging */
 932    { GL_COLOR_TABLE_SGI,
 933      CONTEXT_BOOL(Pixel.ColorTableEnabled[COLORTABLE_PRECONVOLUTION]),
 934      extra_SGI_color_table },
 935    { GL_POST_CONVOLUTION_COLOR_TABLE_SGI,
 936      CONTEXT_BOOL(Pixel.ColorTableEnabled[COLORTABLE_POSTCONVOLUTION]),
 937      extra_SGI_color_table },
 938    { GL_POST_COLOR_MATRIX_COLOR_TABLE_SGI,
 939      CONTEXT_BOOL(Pixel.ColorTableEnabled[COLORTABLE_POSTCOLORMATRIX]),
 940      extra_SGI_color_table },
 941
 942    /* GL_SGI_texture_color_table */
 943    { GL_TEXTURE_COLOR_TABLE_SGI, LOC_TEXUNIT, TYPE_BOOLEAN,
 944      offsetof(struct gl_texture_unit, ColorTableEnabled),
 945      extra_SGI_texture_color_table },
 946
 947    /* GL_EXT_secondary_color */
 948    { GL_COLOR_SUM_EXT, CONTEXT_BOOL(Fog.ColorSumEnabled),
 949      extra_EXT_secondary_color_ARB_vertex_program },
 950    { GL_CURRENT_SECONDARY_COLOR_EXT,
 951      CONTEXT_FIELD(Current.Attrib[VERT_ATTRIB_COLOR1][0], TYPE_FLOATN_4),
 952      extra_EXT_secondary_color_flush_current },
 953    { GL_SECONDARY_COLOR_ARRAY_EXT, ARRAY_BOOL(SecondaryColor.Enabled),
 954      extra_EXT_secondary_color },
 955    { GL_SECONDARY_COLOR_ARRAY_TYPE_EXT, ARRAY_ENUM(SecondaryColor.Type),
 956      extra_EXT_secondary_color },
 957    { GL_SECONDARY_COLOR_ARRAY_STRIDE_EXT, ARRAY_INT(SecondaryColor.Stride),
 958      extra_EXT_secondary_color },
 959    { GL_SECONDARY_COLOR_ARRAY_SIZE_EXT, ARRAY_INT(SecondaryColor.Size),
 960      extra_EXT_secondary_color },
 961
 962    /* GL_EXT_fog_coord */
 963    { GL_CURRENT_FOG_COORDINATE_EXT,
 964      CONTEXT_FLOAT(Current.Attrib[VERT_ATTRIB_FOG][0]),
 965      extra_EXT_fog_coord_flush_current },
 966    { GL_FOG_COORDINATE_ARRAY_EXT, ARRAY_BOOL(FogCoord.Enabled),
 967      extra_EXT_fog_coord },
 968    { GL_FOG_COORDINATE_ARRAY_TYPE_EXT, ARRAY_ENUM(FogCoord.Type),
 969      extra_EXT_fog_coord },
 970    { GL_FOG_COORDINATE_ARRAY_STRIDE_EXT, ARRAY_INT(FogCoord.Stride),
 971      extra_EXT_fog_coord },
 972    { GL_FOG_COORDINATE_SOURCE_EXT, CONTEXT_ENUM(Fog.FogCoordinateSource),
 973      extra_EXT_fog_coord },
 974
 975    /* GL_IBM_rasterpos_clip */
 976    { GL_RASTER_POSITION_UNCLIPPED_IBM,
 977      CONTEXT_BOOL(Transform.RasterPositionUnclipped),
 978      extra_IBM_rasterpos_clip },
 979
 980    /* GL_NV_point_sprite */
 981    { GL_POINT_SPRITE_R_MODE_NV,
 982      CONTEXT_ENUM(Point.SpriteRMode), extra_NV_point_sprite },
 983    { GL_POINT_SPRITE_COORD_ORIGIN, CONTEXT_ENUM(Point.SpriteOrigin),
 984      extra_NV_point_sprite_ARB_point_sprite },
 985
 986    /* GL_NV_vertex_program */
 987    { GL_VERTEX_PROGRAM_BINDING_NV, LOC_CUSTOM, TYPE_INT, 0,
 988      extra_NV_vertex_program },
 989    { GL_VERTEX_ATTRIB_ARRAY0_NV, ARRAY_BOOL(VertexAttrib[0].Enabled),
 990      extra_NV_vertex_program },
 991    { GL_VERTEX_ATTRIB_ARRAY1_NV, ARRAY_BOOL(VertexAttrib[1].Enabled),
 992      extra_NV_vertex_program },
 993    { GL_VERTEX_ATTRIB_ARRAY2_NV, ARRAY_BOOL(VertexAttrib[2].Enabled),
 994      extra_NV_vertex_program },
 995    { GL_VERTEX_ATTRIB_ARRAY3_NV, ARRAY_BOOL(VertexAttrib[3].Enabled),
 996      extra_NV_vertex_program },
 997    { GL_VERTEX_ATTRIB_ARRAY4_NV, ARRAY_BOOL(VertexAttrib[4].Enabled),
 998      extra_NV_vertex_program },
 999    { GL_VERTEX_ATTRIB_ARRAY5_NV, ARRAY_BOOL(VertexAttrib[5].Enabled),
1000      extra_NV_vertex_program },
1001    { GL_VERTEX_ATTRIB_ARRAY6_NV, ARRAY_BOOL(VertexAttrib[6].Enabled),
1002      extra_NV_vertex_program },
1003    { GL_VERTEX_ATTRIB_ARRAY7_NV, ARRAY_BOOL(VertexAttrib[7].Enabled),
1004      extra_NV_vertex_program },
1005    { GL_VERTEX_ATTRIB_ARRAY8_NV, ARRAY_BOOL(VertexAttrib[8].Enabled),
1006      extra_NV_vertex_program },
1007    { GL_VERTEX_ATTRIB_ARRAY9_NV, ARRAY_BOOL(VertexAttrib[9].Enabled),
1008      extra_NV_vertex_program },
1009    { GL_VERTEX_ATTRIB_ARRAY10_NV, ARRAY_BOOL(VertexAttrib[10].Enabled),
1010      extra_NV_vertex_program },
1011    { GL_VERTEX_ATTRIB_ARRAY11_NV, ARRAY_BOOL(VertexAttrib[11].Enabled),
1012      extra_NV_vertex_program },
1013    { GL_VERTEX_ATTRIB_ARRAY12_NV, ARRAY_BOOL(VertexAttrib[12].Enabled),
1014      extra_NV_vertex_program },
1015    { GL_VERTEX_ATTRIB_ARRAY13_NV, ARRAY_BOOL(VertexAttrib[13].Enabled),
1016      extra_NV_vertex_program },
1017    { GL_VERTEX_ATTRIB_ARRAY14_NV, ARRAY_BOOL(VertexAttrib[14].Enabled),
1018      extra_NV_vertex_program },
1019    { GL_VERTEX_ATTRIB_ARRAY15_NV, ARRAY_BOOL(VertexAttrib[15].Enabled),
1020      extra_NV_vertex_program },
1021    { GL_MAP1_VERTEX_ATTRIB0_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[0]),
1022      extra_NV_vertex_program },
1023    { GL_MAP1_VERTEX_ATTRIB1_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[1]),
1024      extra_NV_vertex_program },
1025    { GL_MAP1_VERTEX_ATTRIB2_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[2]),
1026      extra_NV_vertex_program },
1027    { GL_MAP1_VERTEX_ATTRIB3_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[3]),
1028      extra_NV_vertex_program },
1029    { GL_MAP1_VERTEX_ATTRIB4_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[4]),
1030      extra_NV_vertex_program },
1031    { GL_MAP1_VERTEX_ATTRIB5_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[5]),
1032      extra_NV_vertex_program },
1033    { GL_MAP1_VERTEX_ATTRIB6_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[6]),
1034      extra_NV_vertex_program },
1035    { GL_MAP1_VERTEX_ATTRIB7_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[7]),
1036      extra_NV_vertex_program },
1037    { GL_MAP1_VERTEX_ATTRIB8_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[8]),
1038      extra_NV_vertex_program },
1039    { GL_MAP1_VERTEX_ATTRIB9_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[9]),
1040      extra_NV_vertex_program },
1041    { GL_MAP1_VERTEX_ATTRIB10_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[10]),
1042      extra_NV_vertex_program },
1043    { GL_MAP1_VERTEX_ATTRIB11_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[11]),
1044      extra_NV_vertex_program },
1045    { GL_MAP1_VERTEX_ATTRIB12_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[12]),
1046      extra_NV_vertex_program },
1047    { GL_MAP1_VERTEX_ATTRIB13_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[13]),
1048      extra_NV_vertex_program },
1049    { GL_MAP1_VERTEX_ATTRIB14_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[14]),
1050      extra_NV_vertex_program },
1051    { GL_MAP1_VERTEX_ATTRIB15_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[15]),
1052      extra_NV_vertex_program },
1053
1054    /* GL_NV_fragment_program */
1055    { GL_FRAGMENT_PROGRAM_NV, CONTEXT_BOOL(FragmentProgram.Enabled),
1056      extra_NV_fragment_program },
1057    { GL_FRAGMENT_PROGRAM_BINDING_NV, LOC_CUSTOM, TYPE_INT, 0,
1058      extra_NV_fragment_program },
1059    { GL_MAX_FRAGMENT_PROGRAM_LOCAL_PARAMETERS_NV,
1060      CONST(MAX_NV_FRAGMENT_PROGRAM_PARAMS),
1061      extra_NV_fragment_program },
1062
1063    /* GL_NV_texture_rectangle */
1064    { GL_TEXTURE_RECTANGLE_NV,
1065      LOC_CUSTOM, TYPE_BOOLEAN, 0, extra_NV_texture_rectangle },
1066    { GL_TEXTURE_BINDING_RECTANGLE_NV,
1067      LOC_CUSTOM, TYPE_INT, TEXTURE_RECT_INDEX, extra_NV_texture_rectangle },
1068    { GL_MAX_RECTANGLE_TEXTURE_SIZE_NV,
1069      CONTEXT_INT(Const.MaxTextureRectSize), extra_NV_texture_rectangle },
1070
1071    /* GL_EXT_stencil_two_side */
1072    { GL_STENCIL_TEST_TWO_SIDE_EXT, CONTEXT_BOOL(Stencil.TestTwoSide),
1073          extra_EXT_stencil_two_side },
1074    { GL_ACTIVE_STENCIL_FACE_EXT, LOC_CUSTOM, TYPE_ENUM, 0 },
1075
1076    /* GL_NV_light_max_exponent */
1077    { GL_MAX_SHININESS_NV, CONTEXT_FLOAT(Const.MaxShininess),
1078      extra_NV_light_max_exponent },
1079    { GL_MAX_SPOT_EXPONENT_NV, CONTEXT_FLOAT(Const.MaxSpotExponent),
1080      extra_NV_light_max_exponent },
1081
1082    /* GL_ARB_vertex_buffer_object */
1083    { GL_INDEX_ARRAY_BUFFER_BINDING_ARB, LOC_CUSTOM, TYPE_INT,
1084      offsetof(struct gl_array_object, Index.BufferObj) },
1085    { GL_EDGE_FLAG_ARRAY_BUFFER_BINDING_ARB, LOC_CUSTOM, TYPE_INT,
1086      offsetof(struct gl_array_object, EdgeFlag.BufferObj) },
1087    { GL_SECONDARY_COLOR_ARRAY_BUFFER_BINDING_ARB, LOC_CUSTOM, TYPE_INT,
1088      offsetof(struct gl_array_object, SecondaryColor.BufferObj) },
1089    { GL_FOG_COORDINATE_ARRAY_BUFFER_BINDING_ARB, LOC_CUSTOM, TYPE_INT,
1090      offsetof(struct gl_array_object, FogCoord.BufferObj) },
1091
1092    /* GL_EXT_pixel_buffer_object */
1093    { GL_PIXEL_PACK_BUFFER_BINDING_EXT, LOC_CUSTOM, TYPE_INT, 0,
1094      extra_EXT_pixel_buffer_object },
1095    { GL_PIXEL_UNPACK_BUFFER_BINDING_EXT, LOC_CUSTOM, TYPE_INT, 0,
1096      extra_EXT_pixel_buffer_object },
1097
1098    /* GL_ARB_vertex_program */
1099    { GL_VERTEX_PROGRAM_ARB, /* == GL_VERTEX_PROGRAM_NV */
1100      CONTEXT_BOOL(VertexProgram.Enabled),
1101      extra_ARB_vertex_program_NV_vertex_program },
1102    { GL_VERTEX_PROGRAM_POINT_SIZE_ARB, /* == GL_VERTEX_PROGRAM_POINT_SIZE_NV*/
1103      CONTEXT_BOOL(VertexProgram.PointSizeEnabled),
1104      extra_ARB_vertex_program_NV_vertex_program },
1105    { GL_VERTEX_PROGRAM_TWO_SIDE_ARB, /* == GL_VERTEX_PROGRAM_TWO_SIDE_NV */
1106      CONTEXT_BOOL(VertexProgram.TwoSideEnabled),
1107      extra_ARB_vertex_program_NV_vertex_program },
1108    { GL_MAX_PROGRAM_MATRIX_STACK_DEPTH_ARB, /* == GL_MAX_TRACK_MATRIX_STACK_DEPTH_NV */
1109      CONTEXT_INT(Const.MaxProgramMatrixStackDepth),
1110      extra_ARB_vertex_program_ARB_fragment_program_NV_vertex_program },
1111    { GL_MAX_PROGRAM_MATRICES_ARB, /* == GL_MAX_TRACK_MATRICES_NV */
1112      CONTEXT_INT(Const.MaxProgramMatrices),
1113      extra_ARB_vertex_program_ARB_fragment_program_NV_vertex_program },
1114    { GL_CURRENT_MATRIX_STACK_DEPTH_ARB, /* == GL_CURRENT_MATRIX_STACK_DEPTH_NV */
1115      LOC_CUSTOM, TYPE_INT, 0,
1116      extra_ARB_vertex_program_ARB_fragment_program_NV_vertex_program },
1117
1118    { GL_CURRENT_MATRIX_ARB, /* == GL_CURRENT_MATRIX_NV */
1119      LOC_CUSTOM, TYPE_MATRIX, 0,
1120      extra_ARB_vertex_program_ARB_fragment_program_NV_vertex_program },
1121    { GL_TRANSPOSE_CURRENT_MATRIX_ARB, /* == GL_CURRENT_MATRIX_NV */
1122      LOC_CUSTOM, TYPE_MATRIX, 0,
1123      extra_ARB_vertex_program_ARB_fragment_program },
1124
1125    { GL_PROGRAM_ERROR_POSITION_ARB, /* == GL_PROGRAM_ERROR_POSITION_NV */
1126      CONTEXT_INT(Program.ErrorPos),
1127      extra_NV_vertex_program_ARB_vertex_program_ARB_fragment_program_NV_vertex_program },
1128
1129    /* GL_ARB_fragment_program */
1130    { GL_FRAGMENT_PROGRAM_ARB, CONTEXT_BOOL(FragmentProgram.Enabled),
1131      extra_ARB_fragment_program },
1132
1133    /* GL_EXT_depth_bounds_test */
1134    { GL_DEPTH_BOUNDS_TEST_EXT, CONTEXT_BOOL(Depth.BoundsTest),
1135      extra_EXT_depth_bounds_test },
1136    { GL_DEPTH_BOUNDS_EXT, CONTEXT_FLOAT2(Depth.BoundsMin),
1137      extra_EXT_depth_bounds_test },
1138
1139    /* GL_ARB_depth_clamp*/
1140    { GL_DEPTH_CLAMP, CONTEXT_BOOL(Transform.DepthClamp),
1141      extra_ARB_depth_clamp },
1142
1143    /* GL_ARB_draw_buffers */
1144    { GL_DRAW_BUFFER0_ARB, BUFFER_ENUM(ColorDrawBuffer[0]) },
1145    { GL_DRAW_BUFFER1_ARB, BUFFER_ENUM(ColorDrawBuffer[1]),
1146      extra_valid_draw_buffer },
1147    { GL_DRAW_BUFFER2_ARB, BUFFER_ENUM(ColorDrawBuffer[2]),
1148      extra_valid_draw_buffer },
1149    { GL_DRAW_BUFFER3_ARB, BUFFER_ENUM(ColorDrawBuffer[3]),
1150      extra_valid_draw_buffer },
1151
1152    /* GL_ATI_fragment_shader */
1153    { GL_NUM_FRAGMENT_REGISTERS_ATI, CONST(6), extra_ATI_fragment_shader },
1154    { GL_NUM_FRAGMENT_CONSTANTS_ATI, CONST(8), extra_ATI_fragment_shader },
1155    { GL_NUM_PASSES_ATI, CONST(2), extra_ATI_fragment_shader },
1156    { GL_NUM_INSTRUCTIONS_PER_PASS_ATI, CONST(8), extra_ATI_fragment_shader },
1157    { GL_NUM_INSTRUCTIONS_TOTAL_ATI, CONST(16), extra_ATI_fragment_shader },
1158    { GL_COLOR_ALPHA_PAIRING_ATI, CONST(GL_TRUE), extra_ATI_fragment_shader },
1159    { GL_NUM_LOOPBACK_COMPONENTS_ATI, CONST(3), extra_ATI_fragment_shader },
1160    { GL_NUM_INPUT_INTERPOLATOR_COMPONENTS_ATI,
1161      CONST(3), extra_ATI_fragment_shader },
1162
1163    /* GL_EXT_framebuffer_object */
1164    { GL_MAX_COLOR_ATTACHMENTS_EXT, CONTEXT_INT(Const.MaxColorAttachments),
1165      extra_EXT_framebuffer_object },
1166
1167    /* GL_EXT_framebuffer_blit
1168     * NOTE: GL_DRAW_FRAMEBUFFER_BINDING_EXT == GL_FRAMEBUFFER_BINDING_EXT */
1169    { GL_READ_FRAMEBUFFER_BINDING_EXT, LOC_CUSTOM, TYPE_INT, 0,
1170      extra_EXT_framebuffer_blit },
1171
1172    /* GL_EXT_provoking_vertex */
1173    { GL_PROVOKING_VERTEX_EXT,
1174      CONTEXT_BOOL(Light.ProvokingVertex), extra_EXT_provoking_vertex },
1175    { GL_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION_EXT,
1176      CONTEXT_BOOL(Const.QuadsFollowProvokingVertexConvention),
1177      extra_EXT_provoking_vertex },
1178
1179    /* GL_ARB_framebuffer_object */
1180    { GL_MAX_SAMPLES, CONTEXT_INT(Const.MaxSamples),
1181      extra_ARB_framebuffer_object },
1182
1183    /* GL_APPLE_vertex_array_object */
1184    { GL_VERTEX_ARRAY_BINDING_APPLE, ARRAY_INT(Name),
1185      extra_APPLE_vertex_array_object },
1186
1187    /* GL_ARB_seamless_cube_map */
1188    { GL_TEXTURE_CUBE_MAP_SEAMLESS,
1189      CONTEXT_BOOL(Texture.CubeMapSeamless), extra_ARB_seamless_cube_map },
1190
1191    /* GL_ARB_sync */
1192    { GL_MAX_SERVER_WAIT_TIMEOUT,
1193      CONTEXT_INT64(Const.MaxServerWaitTimeout), extra_ARB_sync },
1194
1195    /* GL_EXT_transform_feedback */
1196    { GL_TRANSFORM_FEEDBACK_BUFFER_BINDING, LOC_CUSTOM, TYPE_INT, 0,
1197      extra_EXT_transform_feedback },
1198    { GL_RASTERIZER_DISCARD, CONTEXT_BOOL(TransformFeedback.RasterDiscard),
1199      extra_EXT_transform_feedback },
1200    { GL_MAX_TRANSFORM_FEEDBACK_INTERLEAVED_COMPONENTS,
1201      CONTEXT_INT(Const.MaxTransformFeedbackInterleavedComponents),
1202      extra_EXT_transform_feedback },
1203    { GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_ATTRIBS,
1204      CONTEXT_INT(Const.MaxTransformFeedbackSeparateAttribs),
1205      extra_EXT_transform_feedback },
1206    { GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_COMPONENTS,
1207      CONTEXT_INT(Const.MaxTransformFeedbackSeparateComponents),
1208      extra_EXT_transform_feedback },
1209
1210    /* GL 3.0 */
1211    { GL_NUM_EXTENSIONS, LOC_CUSTOM, TYPE_INT, 0, extra_version_30 },
1212    { GL_MAJOR_VERSION, CONTEXT_INT(VersionMajor), extra_version_30 },
1213    { GL_MINOR_VERSION, CONTEXT_INT(VersionMinor), extra_version_30  },
1214    { GL_CONTEXT_FLAGS, CONTEXT_INT(Const.ContextFlags), extra_version_30  },
1215
1216    /* GL 3.1 */
1217    { GL_PRIMITIVE_RESTART, CONTEXT_BOOL(Array.PrimitiveRestart),
1218      extra_version_31 },
1219    { GL_PRIMITIVE_RESTART_INDEX, CONTEXT_INT(Array.RestartIndex),
1220      extra_version_31 },
1221
1222    /* GL 3.2 */
1223    { GL_CONTEXT_PROFILE_MASK, CONTEXT_INT(Const.ProfileMask),
1224      extra_version_32 },
1225 #endif /* FEATURE_GL */
1226 };
1227
1228 /* All we need now is a way to look up the value struct from the enum.
1229  * The code generated by gcc for the old generated big switch
1230  * statement is a big, balanced, open coded if/else tree, essentially
1231  * an unrolled binary search.  It would be natural to sort the new
1232  * enum table and use bsearch(), but we will use a read-only hash
1233  * table instead.  bsearch() has a nice guaranteed worst case
1234  * performance, but we're also guaranteed to hit that worst case
1235  * (log2(n) iterations) for about half the enums.  Instead, using an
1236  * open addressing hash table, we can find the enum on the first try
1237  * for 80% of the enums, 1 collision for 10% and never more than 5
1238  * collisions for any enum (typical numbers).  And the code is very
1239  * simple, even though it feels a little magic. */
1240
1241 static unsigned short table[1024];
1242 static const int prime_factor = 89, prime_step = 281;
1243
1244 #ifdef GET_DEBUG
1245 static void
1246 print_table_stats(void)
1247 {
1248    int i, j, collisions[11], count, hash, mask;
1249    const struct value_desc *d;
1250
1251    count = 0;
1252    mask = Elements(table) - 1;
1253    memset(collisions, 0, sizeof collisions);
1254
1255    for (i = 0; i < Elements(table); i++) {
1256       if (!table[i])
1257          continue;
1258       count++;
1259       d = &values[table[i]];
1260       hash = (d->pname * prime_factor);
1261       j = 0;
1262       while (1) {
1263          if (values[table[hash & mask]].pname == d->pname)
1264             break;
1265          hash += prime_step;
1266          j++;
1267       }
1268
1269       if (j < 10)
1270          collisions[j]++;
1271       else
1272          collisions[10]++;
1273    }
1274
1275    printf("number of enums: %d (total %d)\n", count, Elements(values));
1276    for (i = 0; i < Elements(collisions) - 1; i++)
1277       if (collisions[i] > 0)
1278          printf("  %d enums with %d %scollisions\n",
1279                 collisions[i], i, i == 10 ? "or more " : "");
1280 }
1281 #endif
1282
1283 /**
1284  * Initialize the enum hash for a given API
1285  *
1286  * This is called from one_time_init() to insert the enum values that
1287  * are valid for the API in question into the enum hash table.
1288  *
1289  * \param the current context, for determining the API in question
1290  */
1291 void _mesa_init_get_hash(GLcontext *ctx)
1292 {
1293    int i, hash, index, mask;
1294    int api_mask = 0, api_bit;
1295
1296    mask = Elements(table) - 1;
1297    api_bit = 1 << ctx->API;
1298
1299    for (i = 0; i < Elements(values); i++) {
1300       if (values[i].type == TYPE_API_MASK) {
1301          api_mask = values[i].offset;
1302          continue;
1303       }
1304       if (!(api_mask & api_bit))
1305          continue;
1306
1307       hash = (values[i].pname * prime_factor) & mask;
1308       while (1) {
1309          index = hash & mask;
1310          if (!table[index]) {
1311             table[index] = i;
1312             break;
1313          }
1314          hash += prime_step;
1315       }
1316    }
1317
1318 #ifdef GET_DEBUG
1319    print_table_stats();
1320 #endif
1321 }
1322
1323 /**
1324  * Handle irregular enums
1325  *
1326  * Some values don't conform to the "well-known type at context
1327  * pointer + offset" pattern, so we have this function to catch all
1328  * the corner cases.  Typically, it's a computed value or a one-off
1329  * pointer to a custom struct or something.
1330  *
1331  * In this case we can't return a pointer to the value, so we'll have
1332  * to use the temporary variable 'v' declared back in the calling
1333  * glGet*v() function to store the result.
1334  *
1335  * \param ctx the current context
1336  * \param d the struct value_desc that describes the enum
1337  * \param v pointer to the tmp declared in the calling glGet*v() function
1338  */
1339 static void
1340 find_custom_value(GLcontext *ctx, const struct value_desc *d, union value *v)
1341 {
1342    struct gl_buffer_object *buffer_obj;
1343    struct gl_client_array *array;
1344    GLuint unit, *p;
1345
1346    switch (d->pname) {
1347    case GL_TEXTURE_1D:
1348    case GL_TEXTURE_2D:
1349    case GL_TEXTURE_3D:
1350    case GL_TEXTURE_1D_ARRAY_EXT:
1351    case GL_TEXTURE_2D_ARRAY_EXT:
1352    case GL_TEXTURE_CUBE_MAP_ARB:
1353    case GL_TEXTURE_RECTANGLE_NV:
1354       v->value_bool = _mesa_IsEnabled(d->pname);
1355       break;
1356
1357    case GL_LINE_STIPPLE_PATTERN:
1358       /* This is the only GLushort, special case it here by promoting
1359        * to an int rather than introducing a new type. */
1360       v->value_int = ctx->Line.StipplePattern;
1361       break;
1362
1363    case GL_CURRENT_RASTER_TEXTURE_COORDS:
1364       unit = ctx->Texture.CurrentUnit;
1365       v->value_float_4[0] = ctx->Current.RasterTexCoords[unit][0];
1366       v->value_float_4[1] = ctx->Current.RasterTexCoords[unit][1];
1367       v->value_float_4[2] = ctx->Current.RasterTexCoords[unit][2];
1368       v->value_float_4[3] = ctx->Current.RasterTexCoords[unit][3];
1369       break;
1370
1371    case GL_CURRENT_TEXTURE_COORDS:
1372       unit = ctx->Texture.CurrentUnit;
1373       v->value_float_4[0] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][0];
1374       v->value_float_4[1] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][1];
1375       v->value_float_4[2] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][2];
1376       v->value_float_4[3] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][3];
1377       break;
1378
1379    case GL_COLOR_WRITEMASK:
1380       v->value_int_4[0] = ctx->Color.ColorMask[0][RCOMP] ? 1 : 0;
1381       v->value_int_4[1] = ctx->Color.ColorMask[0][GCOMP] ? 1 : 0;
1382       v->value_int_4[2] = ctx->Color.ColorMask[0][BCOMP] ? 1 : 0;
1383       v->value_int_4[3] = ctx->Color.ColorMask[0][ACOMP] ? 1 : 0;
1384       break;
1385
1386    case GL_EDGE_FLAG:
1387       v->value_bool = ctx->Current.Attrib[VERT_ATTRIB_EDGEFLAG][0] == 1.0;
1388       break;
1389
1390    case GL_READ_BUFFER:
1391       v->value_enum = ctx->ReadBuffer->ColorReadBuffer;
1392       break;
1393
1394    case GL_MAP2_GRID_DOMAIN:
1395       v->value_float_4[0] = ctx->Eval.MapGrid2u1;
1396       v->value_float_4[1] = ctx->Eval.MapGrid2u2;
1397       v->value_float_4[2] = ctx->Eval.MapGrid2v1;
1398       v->value_float_4[3] = ctx->Eval.MapGrid2v2;
1399       break;
1400
1401    case GL_TEXTURE_STACK_DEPTH:
1402       unit = ctx->Texture.CurrentUnit;
1403       v->value_int = ctx->TextureMatrixStack[unit].Depth + 1;
1404       break;
1405    case GL_TEXTURE_MATRIX:
1406       unit = ctx->Texture.CurrentUnit;
1407       v->value_matrix = ctx->TextureMatrixStack[unit].Top;
1408       break;
1409
1410    case GL_TEXTURE_COORD_ARRAY:
1411    case GL_TEXTURE_COORD_ARRAY_SIZE:
1412    case GL_TEXTURE_COORD_ARRAY_TYPE:
1413    case GL_TEXTURE_COORD_ARRAY_STRIDE:
1414       array = &ctx->Array.ArrayObj->TexCoord[ctx->Array.ActiveTexture];
1415       v->value_int = *(GLuint *) ((char *) array + d->offset);
1416       break;
1417
1418    case GL_ACTIVE_TEXTURE_ARB:
1419       v->value_int = GL_TEXTURE0_ARB + ctx->Texture.CurrentUnit;
1420       break;
1421    case GL_CLIENT_ACTIVE_TEXTURE_ARB:
1422       v->value_int = GL_TEXTURE0_ARB + ctx->Array.ActiveTexture;
1423       break;
1424
1425    case GL_MODELVIEW_STACK_DEPTH:
1426    case GL_PROJECTION_STACK_DEPTH:
1427    case GL_COLOR_MATRIX_STACK_DEPTH_SGI:
1428       v->value_int = *(GLint *) ((char *) ctx + d->offset) + 1;
1429       break;
1430
1431    case GL_MAX_TEXTURE_SIZE:
1432    case GL_MAX_3D_TEXTURE_SIZE:
1433    case GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB:
1434       p = (GLuint *) ((char *) ctx + d->offset);
1435       v->value_int = 1 << (*p - 1);
1436       break;
1437
1438    case GL_SCISSOR_BOX:
1439       v->value_int_4[0] = ctx->Scissor.X;
1440       v->value_int_4[1] = ctx->Scissor.Y;
1441       v->value_int_4[2] = ctx->Scissor.Width;
1442       v->value_int_4[3] = ctx->Scissor.Height;
1443       break;
1444
1445    case GL_LIST_INDEX:
1446       v->value_int =
1447          ctx->ListState.CurrentList ? ctx->ListState.CurrentList->Name : 0;
1448       break;
1449    case GL_LIST_MODE:
1450       if (!ctx->CompileFlag)
1451          v->value_enum = 0;
1452       else if (ctx->ExecuteFlag)
1453          v->value_enum = GL_COMPILE_AND_EXECUTE;
1454       else
1455          v->value_enum = GL_COMPILE;
1456       break;
1457
1458    case GL_VIEWPORT:
1459       v->value_int_4[0] = ctx->Viewport.X;
1460       v->value_int_4[1] = ctx->Viewport.Y;
1461       v->value_int_4[2] = ctx->Viewport.Width;
1462       v->value_int_4[3] = ctx->Viewport.Height;
1463       break;
1464
1465    case GL_ACTIVE_STENCIL_FACE_EXT:
1466       v->value_enum = ctx->Stencil.ActiveFace ? GL_BACK : GL_FRONT;
1467       break;
1468
1469    case GL_STENCIL_FAIL:
1470       v->value_enum = ctx->Stencil.FailFunc[ctx->Stencil.ActiveFace];
1471       break;
1472    case GL_STENCIL_FUNC:
1473       v->value_enum = ctx->Stencil.Function[ctx->Stencil.ActiveFace];
1474       break;
1475    case GL_STENCIL_PASS_DEPTH_FAIL:
1476       v->value_enum = ctx->Stencil.ZFailFunc[ctx->Stencil.ActiveFace];
1477       break;
1478    case GL_STENCIL_PASS_DEPTH_PASS:
1479       v->value_enum = ctx->Stencil.ZPassFunc[ctx->Stencil.ActiveFace];
1480       break;
1481    case GL_STENCIL_REF:
1482       v->value_int = ctx->Stencil.Ref[ctx->Stencil.ActiveFace];
1483       break;
1484    case GL_STENCIL_VALUE_MASK:
1485       v->value_int = ctx->Stencil.ValueMask[ctx->Stencil.ActiveFace];
1486       break;
1487    case GL_STENCIL_WRITEMASK:
1488       v->value_int = ctx->Stencil.WriteMask[ctx->Stencil.ActiveFace];
1489       break;
1490
1491    case GL_NUM_EXTENSIONS:
1492       v->value_int = _mesa_get_extension_count(ctx);
1493       break;
1494
1495    case GL_IMPLEMENTATION_COLOR_READ_TYPE_OES:
1496       v->value_int = _mesa_get_color_read_type(ctx);
1497       break;
1498    case GL_IMPLEMENTATION_COLOR_READ_FORMAT_OES:
1499       v->value_int = _mesa_get_color_read_format(ctx);
1500       break;
1501
1502    case GL_CURRENT_MATRIX_STACK_DEPTH_ARB:
1503       v->value_int = ctx->CurrentStack->Depth + 1;
1504       break;
1505    case GL_CURRENT_MATRIX_ARB:
1506    case GL_TRANSPOSE_CURRENT_MATRIX_ARB:
1507       v->value_matrix = ctx->CurrentStack->Top;
1508       break;
1509
1510    case GL_NUM_COMPRESSED_TEXTURE_FORMATS_ARB:
1511       v->value_int = _mesa_get_compressed_formats(ctx, NULL, GL_FALSE);
1512       break;
1513    case GL_COMPRESSED_TEXTURE_FORMATS_ARB:
1514       v->value_int_n.n =
1515          _mesa_get_compressed_formats(ctx, v->value_int_n.ints, GL_FALSE);
1516       ASSERT(v->value_int_n.n <= 100);
1517       break;
1518
1519    case GL_MAX_VARYING_FLOATS_ARB:
1520       v->value_int = ctx->Const.MaxVarying * 4;
1521       break;
1522
1523    /* Various object names */
1524
1525    case GL_TEXTURE_BINDING_1D:
1526    case GL_TEXTURE_BINDING_2D:
1527    case GL_TEXTURE_BINDING_3D:
1528    case GL_TEXTURE_BINDING_1D_ARRAY_EXT:
1529    case GL_TEXTURE_BINDING_2D_ARRAY_EXT:
1530    case GL_TEXTURE_BINDING_CUBE_MAP_ARB:
1531    case GL_TEXTURE_BINDING_RECTANGLE_NV:
1532       unit = ctx->Texture.CurrentUnit;
1533       v->value_int =
1534          ctx->Texture.Unit[unit].CurrentTex[d->offset]->Name;
1535       break;
1536
1537    /* GL_ARB_vertex_buffer_object */
1538    case GL_VERTEX_ARRAY_BUFFER_BINDING_ARB:
1539    case GL_NORMAL_ARRAY_BUFFER_BINDING_ARB:
1540    case GL_COLOR_ARRAY_BUFFER_BINDING_ARB:
1541    case GL_INDEX_ARRAY_BUFFER_BINDING_ARB:
1542    case GL_EDGE_FLAG_ARRAY_BUFFER_BINDING_ARB:
1543    case GL_SECONDARY_COLOR_ARRAY_BUFFER_BINDING_ARB:
1544    case GL_FOG_COORDINATE_ARRAY_BUFFER_BINDING_ARB:
1545       buffer_obj = (struct gl_buffer_object *)
1546          ((char *) ctx->Array.ArrayObj + d->offset);
1547       v->value_int = buffer_obj->Name;
1548       break;
1549    case GL_ARRAY_BUFFER_BINDING_ARB:
1550       v->value_int = ctx->Array.ArrayBufferObj->Name;
1551       break;
1552    case GL_TEXTURE_COORD_ARRAY_BUFFER_BINDING_ARB:
1553       v->value_int =
1554          ctx->Array.ArrayObj->TexCoord[ctx->Array.ActiveTexture].BufferObj->Name;
1555       break;
1556    case GL_ELEMENT_ARRAY_BUFFER_BINDING_ARB:
1557       v->value_int = ctx->Array.ElementArrayBufferObj->Name;
1558       break;
1559
1560    case GL_FRAGMENT_PROGRAM_BINDING_NV:
1561       v->value_int =
1562          ctx->FragmentProgram.Current ? ctx->FragmentProgram.Current->Base.Id : 0;
1563       break;
1564    case GL_VERTEX_PROGRAM_BINDING_NV:
1565       v->value_int =
1566          ctx->VertexProgram.Current ? ctx->VertexProgram.Current->Base.Id : 0;
1567       break;
1568    case GL_PIXEL_PACK_BUFFER_BINDING_EXT:
1569       v->value_int = ctx->Pack.BufferObj->Name;
1570       break;
1571    case GL_PIXEL_UNPACK_BUFFER_BINDING_EXT:
1572       v->value_int = ctx->Unpack.BufferObj->Name;
1573       break;
1574    case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING:
1575       v->value_int = ctx->TransformFeedback.CurrentBuffer->Name;
1576       break;
1577    case GL_CURRENT_PROGRAM:
1578       v->value_int =
1579          ctx->Shader.CurrentProgram ? ctx->Shader.CurrentProgram->Name : 0;
1580       break;
1581    case GL_READ_FRAMEBUFFER_BINDING_EXT:
1582       v->value_int = ctx->ReadBuffer->Name;
1583       break;
1584    case GL_RENDERBUFFER_BINDING_EXT:
1585       v->value_int =
1586          ctx->CurrentRenderbuffer ? ctx->CurrentRenderbuffer->Name : 0;
1587       break;
1588    case GL_POINT_SIZE_ARRAY_BUFFER_BINDING_OES:
1589       v->value_int = ctx->Array.ArrayObj->PointSize.BufferObj->Name;
1590       break;
1591    }
1592 }
1593
1594 /**
1595  * Check extra constraints on a struct value_desc descriptor
1596  *
1597  * If a struct value_desc has a non-NULL extra pointer, it means that
1598  * there are a number of extra constraints to check or actions to
1599  * perform.  The extras is just an integer array where each integer
1600  * encode different constraints or actions.
1601  *
1602  * \param ctx current context
1603  * \param func name of calling glGet*v() function for error reporting
1604  * \param d the struct value_desc that has the extra constraints
1605  *
1606  * \return GL_FALSE if one of the constraints was not satisfied,
1607  *     otherwise GL_TRUE.
1608  */
1609 static GLboolean
1610 check_extra(GLcontext *ctx, const char *func, const struct value_desc *d)
1611 {
1612    const GLuint version = ctx->VersionMajor * 10 + ctx->VersionMinor;
1613    int total, enabled;
1614    const int *e;
1615
1616    total = 0;
1617    enabled = 0;
1618    for (e = d->extra; *e != EXTRA_END; e++)
1619       switch (*e) {
1620       case EXTRA_VERSION_30:
1621          if (version < 30)
1622             return GL_FALSE;
1623          break;
1624       case EXTRA_VERSION_31:
1625          if (version < 31)
1626             return GL_FALSE;
1627          break;
1628       case EXTRA_VERSION_32:
1629          if (version < 32)
1630             return GL_FALSE;
1631          break;
1632       case EXTRA_NEW_BUFFERS:
1633          if (ctx->NewState & _NEW_BUFFERS)
1634             _mesa_update_state(ctx);
1635          break;
1636       case EXTRA_FLUSH_CURRENT:
1637          FLUSH_CURRENT(ctx, 0);
1638          break;
1639       case EXTRA_VALID_DRAW_BUFFER:
1640          if (d->pname - GL_DRAW_BUFFER0_ARB >= ctx->Const.MaxDrawBuffers) {
1641             _mesa_error(ctx, GL_INVALID_OPERATION, "%s(draw buffer %u)",
1642                         func, d->pname - GL_DRAW_BUFFER0_ARB);
1643             return GL_FALSE;
1644          }
1645          break;
1646       case EXTRA_VALID_TEXTURE_UNIT:
1647          if (ctx->Texture.CurrentUnit >= ctx->Const.MaxTextureCoordUnits) {
1648             _mesa_error(ctx, GL_INVALID_OPERATION, "%s(texture %u)",
1649                         func, ctx->Texture.CurrentUnit);
1650             return GL_FALSE;
1651          }
1652          break;
1653       case EXTRA_END:
1654          break;
1655       default: /* *e is a offset into the extension struct */
1656          total++;
1657          if (*(GLboolean *) ((char *) &ctx->Extensions + *e))
1658             enabled++;
1659          break;
1660       }
1661
1662    if (total > 0 && enabled == 0) {
1663       _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=0x%x)", func, d->pname);
1664       return GL_FALSE;
1665    }
1666
1667    return GL_TRUE;
1668 }
1669
1670 static const struct value_desc error_value = { 0, 0, TYPE_INVALID };
1671
1672 /**
1673  * Find the struct value_desc corresponding to the enum 'pname'.
1674  *
1675  * We hash the enum value to get an index into the 'table' array,
1676  * which holds the index in the 'values' array of struct value_desc.
1677  * Once we've found the entry, we do the extra checks, if any, then
1678  * look up the value and return a pointer to it.
1679  *
1680  * If the value has to be computed (for example, it's the result of a
1681  * function call or we need to add 1 to it), we use the tmp 'v' to
1682  * store the result.
1683  *
1684  * \param func name of glGet*v() func for error reporting
1685  * \param pname the enum value we're looking up
1686  * \param p is were we return the pointer to the value
1687  * \param v a tmp union value variable in the calling glGet*v() function
1688  *
1689  * \return the struct value_desc corresponding to the enum or a struct
1690  *     value_desc of TYPE_INVALID if not found.  This lets the calling
1691  *     glGet*v() function jump right into a switch statement and
1692  *     handle errors there instead of having to check for NULL.
1693  */
1694 static const struct value_desc *
1695 find_value(const char *func, GLenum pname, void **p, union value *v)
1696 {
1697    GET_CURRENT_CONTEXT(ctx);
1698    struct gl_texture_unit *unit;
1699    int mask, hash;
1700    const struct value_desc *d;
1701
1702    mask = Elements(table) - 1;
1703    hash = (pname * prime_factor);
1704    while (1) {
1705       d = &values[table[hash & mask]];
1706       if (likely(d->pname == pname))
1707          break;
1708
1709       /* If the enum isn't valid, the hash walk ends with index 0,
1710        * which is the API mask entry at the beginning of values[]. */
1711       if (d->type == TYPE_API_MASK) {
1712          _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=0x%x)", func, pname);
1713          return &error_value;
1714       }
1715       hash += prime_step;
1716    }
1717
1718    if (unlikely(d->extra && !check_extra(ctx, func, d)))
1719       return &error_value;
1720
1721    switch (d->location) {
1722    case LOC_BUFFER:
1723       *p = ((char *) ctx->DrawBuffer + d->offset);
1724       return d;
1725    case LOC_CONTEXT:
1726       *p = ((char *) ctx + d->offset);
1727       return d;
1728    case LOC_ARRAY:
1729       *p = ((char *) ctx->Array.ArrayObj + d->offset);
1730       return d;
1731    case LOC_TEXUNIT:
1732       unit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
1733       *p = ((char *) unit + d->offset);
1734       return d;
1735    case LOC_CUSTOM:
1736       find_custom_value(ctx, d, v);
1737       *p = v;
1738       return d;
1739    default:
1740       assert(0);
1741       break;
1742
1743    }
1744 }
1745
1746 static const int transpose[] = {
1747    0, 4,  8, 12,
1748    1, 5,  9, 13,
1749    2, 6, 10, 14,
1750    3, 7, 11, 15
1751 };
1752
1753 void GLAPIENTRY
1754 _mesa_GetBooleanv(GLenum pname, GLboolean *params)
1755 {
1756    const struct value_desc *d;
1757    union value v;
1758    GLmatrix *m;
1759    int shift, i;
1760    void *p;
1761
1762    d = find_value("glGetBooleanv", pname, &p, &v);
1763    switch (d->type) {
1764    case TYPE_INVALID:
1765       break;
1766    case TYPE_CONST:
1767       params[0] = INT_TO_BOOLEAN(d->offset);
1768       break;
1769
1770    case TYPE_FLOAT_4:
1771    case TYPE_FLOATN_4:
1772       params[3] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[3]);
1773    case TYPE_FLOAT_3:
1774    case TYPE_FLOATN_3:
1775       params[2] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[2]);
1776    case TYPE_FLOAT_2:
1777    case TYPE_FLOATN_2:
1778       params[1] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[1]);
1779    case TYPE_FLOAT:
1780    case TYPE_FLOATN:
1781       params[0] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[0]);
1782       break;
1783
1784    case TYPE_DOUBLEN:
1785       params[0] = FLOAT_TO_BOOLEAN(((GLdouble *) p)[0]);
1786       break;
1787
1788    case TYPE_INT_4:
1789       params[3] = INT_TO_BOOLEAN(((GLint *) p)[3]);
1790    case TYPE_INT_3:
1791       params[2] = INT_TO_BOOLEAN(((GLint *) p)[2]);
1792    case TYPE_INT_2:
1793    case TYPE_ENUM_2:
1794       params[1] = INT_TO_BOOLEAN(((GLint *) p)[1]);
1795    case TYPE_INT:
1796    case TYPE_ENUM:
1797       params[0] = INT_TO_BOOLEAN(((GLint *) p)[0]);
1798       break;
1799
1800    case TYPE_INT_N:
1801       for (i = 0; i < v.value_int_n.n; i++)
1802          params[i] = INT_TO_BOOLEAN(v.value_int_n.ints[i]);
1803       break;
1804
1805    case TYPE_INT64:
1806       params[0] = INT64_TO_BOOLEAN(((GLint64 *) p)[0]);
1807       break;
1808
1809    case TYPE_BOOLEAN:
1810       params[0] = ((GLboolean*) p)[0];
1811       break;
1812
1813    case TYPE_MATRIX:
1814       m = *(GLmatrix **) p;
1815       for (i = 0; i < 16; i++)
1816          params[i] = FLOAT_TO_BOOLEAN(m->m[i]);
1817       break;
1818
1819    case TYPE_MATRIX_T:
1820       m = *(GLmatrix **) p;
1821       for (i = 0; i < 16; i++)
1822          params[i] = FLOAT_TO_BOOLEAN(m->m[transpose[i]]);
1823       break;
1824
1825    case TYPE_BIT_0:
1826    case TYPE_BIT_1:
1827    case TYPE_BIT_2:
1828    case TYPE_BIT_3:
1829    case TYPE_BIT_4:
1830    case TYPE_BIT_5:
1831       shift = d->type - TYPE_BIT_0;
1832       params[0] = (*(GLbitfield *) p >> shift) & 1;
1833       break;
1834    }
1835 }
1836
1837 void GLAPIENTRY
1838 _mesa_GetFloatv(GLenum pname, GLfloat *params)
1839 {
1840    const struct value_desc *d;
1841    union value v;
1842    GLmatrix *m;
1843    int shift, i;
1844    void *p;
1845
1846    d = find_value("glGetFloatv", pname, &p, &v);
1847    switch (d->type) {
1848    case TYPE_INVALID:
1849       break;
1850    case TYPE_CONST:
1851       params[0] = (GLfloat) d->offset;
1852       break;
1853
1854    case TYPE_FLOAT_4:
1855    case TYPE_FLOATN_4:
1856       params[3] = ((GLfloat *) p)[3];
1857    case TYPE_FLOAT_3:
1858    case TYPE_FLOATN_3:
1859       params[2] = ((GLfloat *) p)[2];
1860    case TYPE_FLOAT_2:
1861    case TYPE_FLOATN_2:
1862       params[1] = ((GLfloat *) p)[1];
1863    case TYPE_FLOAT:
1864    case TYPE_FLOATN:
1865       params[0] = ((GLfloat *) p)[0];
1866       break;
1867
1868    case TYPE_DOUBLEN:
1869       params[0] = ((GLdouble *) p)[0];
1870       break;
1871
1872    case TYPE_INT_4:
1873       params[3] = (GLfloat) (((GLint *) p)[3]);
1874    case TYPE_INT_3:
1875       params[2] = (GLfloat) (((GLint *) p)[2]);
1876    case TYPE_INT_2:
1877    case TYPE_ENUM_2:
1878       params[1] = (GLfloat) (((GLint *) p)[1]);
1879    case TYPE_INT:
1880    case TYPE_ENUM:
1881       params[0] = (GLfloat) (((GLint *) p)[0]);
1882       break;
1883
1884    case TYPE_INT_N:
1885       for (i = 0; i < v.value_int_n.n; i++)
1886          params[i] = INT_TO_FLOAT(v.value_int_n.ints[i]);
1887       break;
1888
1889    case TYPE_INT64:
1890       params[0] = ((GLint64 *) p)[0];
1891       break;
1892
1893    case TYPE_BOOLEAN:
1894       params[0] = BOOLEAN_TO_FLOAT(*(GLboolean*) p);
1895       break;
1896
1897    case TYPE_MATRIX:
1898       m = *(GLmatrix **) p;
1899       for (i = 0; i < 16; i++)
1900          params[i] = m->m[i];
1901       break;
1902
1903    case TYPE_MATRIX_T:
1904       m = *(GLmatrix **) p;
1905       for (i = 0; i < 16; i++)
1906          params[i] = m->m[transpose[i]];
1907       break;
1908
1909    case TYPE_BIT_0:
1910    case TYPE_BIT_1:
1911    case TYPE_BIT_2:
1912    case TYPE_BIT_3:
1913    case TYPE_BIT_4:
1914    case TYPE_BIT_5:
1915       shift = d->type - TYPE_BIT_0;
1916       params[0] = BOOLEAN_TO_FLOAT((*(GLbitfield *) p >> shift) & 1);
1917       break;
1918    }
1919 }
1920
1921 void GLAPIENTRY
1922 _mesa_GetIntegerv(GLenum pname, GLint *params)
1923 {
1924    const struct value_desc *d;
1925    union value v;
1926    GLmatrix *m;
1927    int shift, i;
1928    void *p;
1929
1930    d = find_value("glGetIntegerv", pname, &p, &v);
1931    switch (d->type) {
1932    case TYPE_INVALID:
1933       break;
1934    case TYPE_CONST:
1935       params[0] = d->offset;
1936       break;
1937
1938    case TYPE_FLOAT_4:
1939       params[3] = IROUND(((GLfloat *) p)[3]);
1940    case TYPE_FLOAT_3:
1941       params[2] = IROUND(((GLfloat *) p)[2]);
1942    case TYPE_FLOAT_2:
1943       params[1] = IROUND(((GLfloat *) p)[1]);
1944    case TYPE_FLOAT:
1945       params[0] = IROUND(((GLfloat *) p)[0]);
1946       break;
1947
1948    case TYPE_FLOATN_4:
1949       params[3] = FLOAT_TO_INT(((GLfloat *) p)[3]);
1950    case TYPE_FLOATN_3:
1951       params[2] = FLOAT_TO_INT(((GLfloat *) p)[2]);
1952    case TYPE_FLOATN_2:
1953       params[1] = FLOAT_TO_INT(((GLfloat *) p)[1]);
1954    case TYPE_FLOATN:
1955       params[0] = FLOAT_TO_INT(((GLfloat *) p)[0]);
1956       break;
1957
1958    case TYPE_DOUBLEN:
1959       params[0] = FLOAT_TO_INT(((GLdouble *) p)[0]);
1960       break;
1961
1962    case TYPE_INT_4:
1963       params[3] = ((GLint *) p)[3];
1964    case TYPE_INT_3:
1965       params[2] = ((GLint *) p)[2];
1966    case TYPE_INT_2:
1967    case TYPE_ENUM_2:
1968       params[1] = ((GLint *) p)[1];
1969    case TYPE_INT:
1970    case TYPE_ENUM:
1971       params[0] = ((GLint *) p)[0];
1972       break;
1973
1974    case TYPE_INT_N:
1975       for (i = 0; i < v.value_int_n.n; i++)
1976          params[i] = v.value_int_n.ints[i];
1977       break;
1978
1979    case TYPE_INT64:
1980       params[0] = INT64_TO_INT(((GLint64 *) p)[0]);
1981       break;
1982
1983    case TYPE_BOOLEAN:
1984       params[0] = BOOLEAN_TO_INT(*(GLboolean*) p);
1985       break;
1986
1987    case TYPE_MATRIX:
1988       m = *(GLmatrix **) p;
1989       for (i = 0; i < 16; i++)
1990          params[i] = FLOAT_TO_INT(m->m[i]);
1991       break;
1992
1993    case TYPE_MATRIX_T:
1994       m = *(GLmatrix **) p;
1995       for (i = 0; i < 16; i++)
1996          params[i] = FLOAT_TO_INT(m->m[transpose[i]]);
1997       break;
1998
1999    case TYPE_BIT_0:
2000    case TYPE_BIT_1:
2001    case TYPE_BIT_2:
2002    case TYPE_BIT_3:
2003    case TYPE_BIT_4:
2004    case TYPE_BIT_5:
2005       shift = d->type - TYPE_BIT_0;
2006       params[0] = (*(GLbitfield *) p >> shift) & 1;
2007       break;
2008    }
2009 }
2010
2011 #if FEATURE_ARB_sync
2012 void GLAPIENTRY
2013 _mesa_GetInteger64v(GLenum pname, GLint64 *params)
2014 {
2015    const struct value_desc *d;
2016    union value v;
2017    GLmatrix *m;
2018    int shift, i;
2019    void *p;
2020
2021    d = find_value("glGetInteger64v", pname, &p, &v);
2022    switch (d->type) {
2023    case TYPE_INVALID:
2024       break;
2025    case TYPE_CONST:
2026       params[0] = d->offset;
2027       break;
2028
2029    case TYPE_FLOAT_4:
2030       params[3] = IROUND64(((GLfloat *) p)[3]);
2031    case TYPE_FLOAT_3:
2032       params[2] = IROUND64(((GLfloat *) p)[2]);
2033    case TYPE_FLOAT_2:
2034       params[1] = IROUND64(((GLfloat *) p)[1]);
2035    case TYPE_FLOAT:
2036       params[0] = IROUND64(((GLfloat *) p)[0]);
2037       break;
2038
2039    case TYPE_FLOATN_4:
2040       params[3] = FLOAT_TO_INT64(((GLfloat *) p)[3]);
2041    case TYPE_FLOATN_3:
2042       params[2] = FLOAT_TO_INT64(((GLfloat *) p)[2]);
2043    case TYPE_FLOATN_2:
2044       params[1] = FLOAT_TO_INT64(((GLfloat *) p)[1]);
2045    case TYPE_FLOATN:
2046       params[0] = FLOAT_TO_INT64(((GLfloat *) p)[0]);
2047       break;
2048
2049    case TYPE_DOUBLEN:
2050       params[0] = FLOAT_TO_INT64(((GLdouble *) p)[0]);
2051       break;
2052
2053    case TYPE_INT_4:
2054       params[3] = ((GLint *) p)[3];
2055    case TYPE_INT_3:
2056       params[2] = ((GLint *) p)[2];
2057    case TYPE_INT_2:
2058    case TYPE_ENUM_2:
2059       params[1] = ((GLint *) p)[1];
2060    case TYPE_INT:
2061    case TYPE_ENUM:
2062       params[0] = ((GLint *) p)[0];
2063       break;
2064
2065    case TYPE_INT_N:
2066       for (i = 0; i < v.value_int_n.n; i++)
2067          params[i] = INT_TO_BOOLEAN(v.value_int_n.ints[i]);
2068       break;
2069
2070    case TYPE_INT64:
2071       params[0] = ((GLint64 *) p)[0];
2072       break;
2073
2074    case TYPE_BOOLEAN:
2075       params[0] = ((GLboolean*) p)[0];
2076       break;
2077
2078    case TYPE_MATRIX:
2079       m = *(GLmatrix **) p;
2080       for (i = 0; i < 16; i++)
2081          params[i] = FLOAT_TO_INT64(m->m[i]);
2082       break;
2083
2084    case TYPE_MATRIX_T:
2085       m = *(GLmatrix **) p;
2086       for (i = 0; i < 16; i++)
2087          params[i] = FLOAT_TO_INT64(m->m[transpose[i]]);
2088       break;
2089
2090    case TYPE_BIT_0:
2091    case TYPE_BIT_1:
2092    case TYPE_BIT_2:
2093    case TYPE_BIT_3:
2094    case TYPE_BIT_4:
2095    case TYPE_BIT_5:
2096       shift = d->type - TYPE_BIT_0;
2097       params[0] = (*(GLbitfield *) p >> shift) & 1;
2098       break;
2099    }
2100 }
2101 #endif /* FEATURE_ARB_sync */
2102
2103 void GLAPIENTRY
2104 _mesa_GetDoublev(GLenum pname, GLdouble *params)
2105 {
2106    const struct value_desc *d;
2107    union value v;
2108    GLmatrix *m;
2109    int shift, i;
2110    void *p;
2111
2112    d = find_value("glGetDoublev", pname, &p, &v);
2113    switch (d->type) {
2114    case TYPE_INVALID:
2115       break;
2116    case TYPE_CONST:
2117       params[0] = d->offset;
2118       break;
2119
2120    case TYPE_FLOAT_4:
2121    case TYPE_FLOATN_4:
2122       params[3] = ((GLfloat *) p)[3];
2123    case TYPE_FLOAT_3:
2124    case TYPE_FLOATN_3:
2125       params[2] = ((GLfloat *) p)[2];
2126    case TYPE_FLOAT_2:
2127    case TYPE_FLOATN_2:
2128       params[1] = ((GLfloat *) p)[1];
2129    case TYPE_FLOAT:
2130    case TYPE_FLOATN:
2131       params[0] = ((GLfloat *) p)[0];
2132       break;
2133
2134    case TYPE_DOUBLEN:
2135       params[0] = ((GLdouble *) p)[0];
2136       break;
2137
2138    case TYPE_INT_4:
2139       params[3] = ((GLint *) p)[3];
2140    case TYPE_INT_3:
2141       params[2] = ((GLint *) p)[2];
2142    case TYPE_INT_2:
2143    case TYPE_ENUM_2:
2144       params[1] = ((GLint *) p)[1];
2145    case TYPE_INT:
2146    case TYPE_ENUM:
2147       params[0] = ((GLint *) p)[0];
2148       break;
2149
2150    case TYPE_INT_N:
2151       for (i = 0; i < v.value_int_n.n; i++)
2152          params[i] = v.value_int_n.ints[i];
2153       break;
2154
2155    case TYPE_INT64:
2156       params[0] = ((GLint64 *) p)[0];
2157       break;
2158
2159    case TYPE_BOOLEAN:
2160       params[0] = *(GLboolean*) p;
2161       break;
2162
2163    case TYPE_MATRIX:
2164       m = *(GLmatrix **) p;
2165       for (i = 0; i < 16; i++)
2166          params[i] = m->m[i];
2167       break;
2168
2169    case TYPE_MATRIX_T:
2170       m = *(GLmatrix **) p;
2171       for (i = 0; i < 16; i++)
2172          params[i] = m->m[transpose[i]];
2173       break;
2174
2175    case TYPE_BIT_0:
2176    case TYPE_BIT_1:
2177    case TYPE_BIT_2:
2178    case TYPE_BIT_3:
2179    case TYPE_BIT_4:
2180    case TYPE_BIT_5:
2181       shift = d->type - TYPE_BIT_0;
2182       params[0] = (*(GLbitfield *) p >> shift) & 1;
2183       break;
2184    }
2185 }
2186
2187 static enum value_type
2188 find_value_indexed(const char *func, GLenum pname, int index, union value *v)
2189 {
2190    GET_CURRENT_CONTEXT(ctx);
2191
2192    switch (pname) {
2193
2194    case GL_BLEND:
2195       if (index >= ctx->Const.MaxDrawBuffers)
2196          goto invalid_value;
2197       if (!ctx->Extensions.EXT_draw_buffers2)
2198          goto invalid_enum;
2199       v->value_int = (ctx->Color.BlendEnabled >> index) & 1;
2200       return TYPE_INT;
2201
2202    case GL_COLOR_WRITEMASK:
2203       if (index >= ctx->Const.MaxDrawBuffers)
2204          goto invalid_value;
2205       if (!ctx->Extensions.EXT_draw_buffers2)
2206          goto invalid_enum;
2207       v->value_int_4[0] = ctx->Color.ColorMask[index][RCOMP] ? 1 : 0;
2208       v->value_int_4[1] = ctx->Color.ColorMask[index][GCOMP] ? 1 : 0;
2209       v->value_int_4[2] = ctx->Color.ColorMask[index][BCOMP] ? 1 : 0;
2210       v->value_int_4[3] = ctx->Color.ColorMask[index][ACOMP] ? 1 : 0;
2211       return TYPE_INT_4;
2212
2213    case GL_TRANSFORM_FEEDBACK_BUFFER_START:
2214       if (index >= ctx->Const.MaxTransformFeedbackSeparateAttribs)
2215          goto invalid_value;
2216       if (!ctx->Extensions.EXT_transform_feedback)
2217          goto invalid_enum;
2218       v->value_int64 = ctx->TransformFeedback.CurrentObject->Offset[index];
2219       return TYPE_INT64;
2220
2221    case GL_TRANSFORM_FEEDBACK_BUFFER_SIZE:
2222       if (index >= ctx->Const.MaxTransformFeedbackSeparateAttribs)
2223          goto invalid_value;
2224       if (!ctx->Extensions.EXT_transform_feedback)
2225          goto invalid_enum;
2226       v->value_int64 = ctx->TransformFeedback.CurrentObject->Size[index];
2227       return TYPE_INT64;
2228
2229    case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING:
2230       if (index >= ctx->Const.MaxTransformFeedbackSeparateAttribs)
2231          goto invalid_value;
2232       if (!ctx->Extensions.EXT_transform_feedback)
2233          goto invalid_enum;
2234       v->value_int = ctx->TransformFeedback.CurrentObject->Buffers[index]->Name;
2235       return TYPE_INT;
2236    }
2237
2238  invalid_enum:
2239    _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=0x%x)", func, pname);
2240    return TYPE_INVALID;
2241  invalid_value:
2242    _mesa_error(ctx, GL_INVALID_VALUE, "%s(pname=0x%x)", func, pname);
2243    return TYPE_INVALID;
2244 }
2245
2246 void GLAPIENTRY
2247 _mesa_GetBooleanIndexedv( GLenum pname, GLuint index, GLboolean *params )
2248 {
2249    union value v;
2250
2251    switch (find_value_indexed("glGetBooleanIndexedv", pname, index, &v)) {
2252    case TYPE_INT:
2253       params[0] = INT_TO_BOOLEAN(v.value_int);
2254       break;
2255    case TYPE_INT_4:
2256       params[0] = INT_TO_BOOLEAN(v.value_int_4[0]);
2257       params[1] = INT_TO_BOOLEAN(v.value_int_4[1]);
2258       params[2] = INT_TO_BOOLEAN(v.value_int_4[2]);
2259       params[3] = INT_TO_BOOLEAN(v.value_int_4[3]);
2260       break;
2261    case TYPE_INT64:
2262       params[0] = INT64_TO_BOOLEAN(v.value_int);
2263       break;
2264    default:
2265       assert(0);
2266    }
2267 }
2268
2269 void GLAPIENTRY
2270 _mesa_GetIntegerIndexedv( GLenum pname, GLuint index, GLint *params )
2271 {
2272    union value v;
2273
2274    switch (find_value_indexed("glGetIntegerIndexedv", pname, index, &v)) {
2275    case TYPE_INT:
2276       params[0] = v.value_int;
2277       break;
2278    case TYPE_INT_4:
2279       params[0] = v.value_int_4[0];
2280       params[1] = v.value_int_4[1];
2281       params[2] = v.value_int_4[2];
2282       params[3] = v.value_int_4[3];
2283       break;
2284    case TYPE_INT64:
2285       params[0] = INT64_TO_INT(v.value_int);
2286       break;
2287    default:
2288       assert(0);
2289    }
2290 }
2291
2292 #if FEATURE_ARB_sync
2293 void GLAPIENTRY
2294 _mesa_GetInteger64Indexedv( GLenum pname, GLuint index, GLint64 *params )
2295 {
2296    union value v;
2297
2298    switch (find_value_indexed("glGetIntegerIndexedv", pname, index, &v)) {
2299    case TYPE_INT:
2300       params[0] = v.value_int;
2301       break;
2302    case TYPE_INT_4:
2303       params[0] = v.value_int_4[0];
2304       params[1] = v.value_int_4[1];
2305       params[2] = v.value_int_4[2];
2306       params[3] = v.value_int_4[3];
2307       break;
2308    case TYPE_INT64:
2309       params[0] = v.value_int;
2310       break;
2311    default:
2312       assert(0);
2313    }
2314 }
2315 #endif /* FEATURE_ARB_sync */
2316
2317 #if FEATURE_ES1
2318 void GLAPIENTRY
2319 _mesa_GetFixedv(GLenum pname, GLfixed *params)
2320 {
2321    const struct value_desc *d;
2322    union value v;
2323    GLmatrix *m;
2324    int shift, i;
2325    void *p;
2326
2327    d = find_value("glGetDoublev", pname, &p, &v);
2328    switch (d->type) {
2329    case TYPE_INVALID:
2330       break;
2331    case TYPE_CONST:
2332       params[0] = INT_TO_FIXED(d->offset);
2333       break;
2334
2335    case TYPE_FLOAT_4:
2336    case TYPE_FLOATN_4:
2337       params[3] = FLOAT_TO_FIXED(((GLfloat *) p)[3]);
2338    case TYPE_FLOAT_3:
2339    case TYPE_FLOATN_3:
2340       params[2] = FLOAT_TO_FIXED(((GLfloat *) p)[2]);
2341    case TYPE_FLOAT_2:
2342    case TYPE_FLOATN_2:
2343       params[1] = FLOAT_TO_FIXED(((GLfloat *) p)[1]);
2344    case TYPE_FLOAT:
2345    case TYPE_FLOATN:
2346       params[0] = FLOAT_TO_FIXED(((GLfloat *) p)[0]);
2347       break;
2348
2349    case TYPE_DOUBLEN:
2350       params[0] = FLOAT_TO_FIXED(((GLdouble *) p)[0]);
2351       break;
2352
2353    case TYPE_INT_4:
2354       params[3] = INT_TO_FIXED(((GLint *) p)[3]);
2355    case TYPE_INT_3:
2356       params[2] = INT_TO_FIXED(((GLint *) p)[2]);
2357    case TYPE_INT_2:
2358    case TYPE_ENUM_2:
2359       params[1] = INT_TO_FIXED(((GLint *) p)[1]);
2360    case TYPE_INT:
2361    case TYPE_ENUM:
2362       params[0] = INT_TO_FIXED(((GLint *) p)[0]);
2363       break;
2364
2365    case TYPE_INT_N:
2366       for (i = 0; i < v.value_int_n.n; i++)
2367          params[i] = INT_TO_FIXED(v.value_int_n.ints[i]);
2368       break;
2369
2370    case TYPE_INT64:
2371       params[0] = ((GLint64 *) p)[0];
2372       break;
2373
2374    case TYPE_BOOLEAN:
2375       params[0] = BOOLEAN_TO_FIXED(((GLboolean*) p)[0]);
2376       break;
2377
2378    case TYPE_MATRIX:
2379       m = *(GLmatrix **) p;
2380       for (i = 0; i < 16; i++)
2381          params[i] = FLOAT_TO_FIXED(m->m[i]);
2382       break;
2383
2384    case TYPE_MATRIX_T:
2385       m = *(GLmatrix **) p;
2386       for (i = 0; i < 16; i++)
2387          params[i] = FLOAT_TO_FIXED(m->m[transpose[i]]);
2388       break;
2389
2390    case TYPE_BIT_0:
2391    case TYPE_BIT_1:
2392    case TYPE_BIT_2:
2393    case TYPE_BIT_3:
2394    case TYPE_BIT_4:
2395    case TYPE_BIT_5:
2396       shift = d->type - TYPE_BIT_0;
2397       params[0] = BOOLEAN_TO_FIXED((*(GLbitfield *) p >> shift) & 1);
2398       break;
2399    }
2400 }
2401 #endif