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  1. descriptor=[
  2. { "apis": ["GL", "GLES", "GLES2", "GL_CORE"], "params": [
  3.   [ "ALPHA_BITS", "BUFFER_INT(Visual.alphaBits), extra_new_buffers" ],
  4.   [ "BLEND", "CONTEXT_BIT0(Color.BlendEnabled), NO_EXTRA" ],
  5.   [ "BLEND_SRC", "CONTEXT_ENUM(Color.Blend[0].SrcRGB), NO_EXTRA" ],
  6.   [ "BLUE_BITS", "BUFFER_INT(Visual.blueBits), extra_new_buffers" ],
  7.   [ "COLOR_CLEAR_VALUE", "LOC_CUSTOM, TYPE_FLOATN_4, 0, extra_new_frag_clamp" ],
  8.   [ "COLOR_WRITEMASK", "LOC_CUSTOM, TYPE_INT_4, 0, NO_EXTRA" ],
  9.   [ "CULL_FACE", "CONTEXT_BOOL(Polygon.CullFlag), NO_EXTRA" ],
  10.   [ "CULL_FACE_MODE", "CONTEXT_ENUM(Polygon.CullFaceMode), NO_EXTRA" ],
  11.   [ "DEPTH_BITS", "BUFFER_INT(Visual.depthBits), extra_new_buffers" ],
  12.   [ "DEPTH_CLEAR_VALUE", "CONTEXT_FIELD(Depth.Clear, TYPE_DOUBLEN), NO_EXTRA" ],
  13.   [ "DEPTH_FUNC", "CONTEXT_ENUM(Depth.Func), NO_EXTRA" ],
  14.   [ "DEPTH_RANGE", "LOC_CUSTOM, TYPE_DOUBLEN_2, 0, NO_EXTRA" ],
  15.   [ "DEPTH_TEST", "CONTEXT_BOOL(Depth.Test), NO_EXTRA" ],
  16.   [ "DEPTH_WRITEMASK", "CONTEXT_BOOL(Depth.Mask), NO_EXTRA" ],
  17.   [ "DITHER", "CONTEXT_BOOL(Color.DitherFlag), NO_EXTRA" ],
  18.   [ "FRONT_FACE", "CONTEXT_ENUM(Polygon.FrontFace), NO_EXTRA" ],
  19.   [ "GREEN_BITS", "BUFFER_INT(Visual.greenBits), extra_new_buffers" ],
  20.   [ "LINE_WIDTH", "CONTEXT_FLOAT(Line.Width), NO_EXTRA" ],
  21.   [ "ALIASED_LINE_WIDTH_RANGE", "CONTEXT_FLOAT2(Const.MinLineWidth), NO_EXTRA" ],
  22.   [ "MAX_ELEMENTS_VERTICES", "CONTEXT_INT(Const.MaxArrayLockSize), NO_EXTRA" ],
  23.   [ "MAX_ELEMENTS_INDICES", "CONTEXT_INT(Const.MaxArrayLockSize), NO_EXTRA" ],
  24.   [ "MAX_TEXTURE_SIZE", "LOC_CUSTOM, TYPE_INT, offsetof(struct gl_context, Const.MaxTextureLevels), NO_EXTRA" ],
  25.   [ "MAX_VIEWPORT_DIMS", "CONTEXT_INT2(Const.MaxViewportWidth), NO_EXTRA" ],
  26.   [ "PACK_ALIGNMENT", "CONTEXT_INT(Pack.Alignment), NO_EXTRA" ],
  27.   [ "ALIASED_POINT_SIZE_RANGE", "CONTEXT_FLOAT2(Const.MinPointSize), NO_EXTRA" ],
  28.   [ "POLYGON_OFFSET_FACTOR", "CONTEXT_FLOAT(Polygon.OffsetFactor ), NO_EXTRA" ],
  29.   [ "POLYGON_OFFSET_UNITS", "CONTEXT_FLOAT(Polygon.OffsetUnits ), NO_EXTRA" ],
  30.   [ "POLYGON_OFFSET_FILL", "CONTEXT_BOOL(Polygon.OffsetFill), NO_EXTRA" ],
  31.   [ "RED_BITS", "BUFFER_INT(Visual.redBits), extra_new_buffers" ],
  32.   [ "SCISSOR_BOX", "LOC_CUSTOM, TYPE_INT_4, 0, NO_EXTRA" ],
  33.   [ "SCISSOR_TEST", "LOC_CUSTOM, TYPE_BOOLEAN, NO_OFFSET, NO_EXTRA" ],
  34.   [ "STENCIL_BITS", "BUFFER_INT(Visual.stencilBits), extra_new_buffers" ],
  35.   [ "STENCIL_CLEAR_VALUE", "CONTEXT_INT(Stencil.Clear), NO_EXTRA" ],
  36.   [ "STENCIL_FAIL", "LOC_CUSTOM, TYPE_ENUM, NO_OFFSET, NO_EXTRA" ],
  37.   [ "STENCIL_FUNC", "LOC_CUSTOM, TYPE_ENUM, NO_OFFSET, NO_EXTRA" ],
  38.   [ "STENCIL_PASS_DEPTH_FAIL", "LOC_CUSTOM, TYPE_ENUM, NO_OFFSET, NO_EXTRA" ],
  39.   [ "STENCIL_PASS_DEPTH_PASS", "LOC_CUSTOM, TYPE_ENUM, NO_OFFSET, NO_EXTRA" ],
  40.   [ "STENCIL_REF", "LOC_CUSTOM, TYPE_INT, NO_OFFSET, NO_EXTRA" ],
  41.   [ "STENCIL_TEST", "CONTEXT_BOOL(Stencil.Enabled), NO_EXTRA" ],
  42.   [ "STENCIL_VALUE_MASK", "LOC_CUSTOM, TYPE_INT, NO_OFFSET, NO_EXTRA" ],
  43.   [ "STENCIL_WRITEMASK", "LOC_CUSTOM, TYPE_INT, NO_OFFSET, NO_EXTRA" ],
  44.   [ "SUBPIXEL_BITS", "CONTEXT_INT(Const.SubPixelBits), NO_EXTRA" ],
  45.   [ "TEXTURE_BINDING_2D", "LOC_CUSTOM, TYPE_INT, TEXTURE_2D_INDEX, NO_EXTRA" ],
  46.   [ "UNPACK_ALIGNMENT", "CONTEXT_INT(Unpack.Alignment), NO_EXTRA" ],
  47.   [ "VIEWPORT", "LOC_CUSTOM, TYPE_FLOAT_4, 0, NO_EXTRA" ],
  48.  
  49. # GL_ARB_multitexture
  50.   [ "ACTIVE_TEXTURE", "LOC_CUSTOM, TYPE_INT, 0, NO_EXTRA" ],
  51.  
  52. # Note that all the OES_* extensions require that the Mesa "struct
  53. # gl_extensions" include a member with the name of the extension.
  54. # That structure does not yet include OES extensions (and we're
  55. # not sure whether it will).  If it does, all the OES_*
  56. # extensions below should mark the dependency.
  57.  
  58. # GL_ARB_texture_cube_map
  59.   [ "TEXTURE_BINDING_CUBE_MAP_ARB", "LOC_CUSTOM, TYPE_INT, TEXTURE_CUBE_INDEX, extra_ARB_texture_cube_map" ],
  60. # XXX: OES_texture_cube_map
  61.   [ "MAX_CUBE_MAP_TEXTURE_SIZE_ARB", "LOC_CUSTOM, TYPE_INT, offsetof(struct gl_context, Const.MaxCubeTextureLevels), extra_ARB_texture_cube_map" ],
  62.  
  63. # XXX: OES_blend_subtract
  64.   [ "BLEND_SRC_RGB", "CONTEXT_ENUM(Color.Blend[0].SrcRGB), NO_EXTRA" ],
  65.   [ "BLEND_DST_RGB", "CONTEXT_ENUM(Color.Blend[0].DstRGB), NO_EXTRA" ],
  66.   [ "BLEND_SRC_ALPHA", "CONTEXT_ENUM(Color.Blend[0].SrcA), NO_EXTRA" ],
  67.   [ "BLEND_DST_ALPHA", "CONTEXT_ENUM(Color.Blend[0].DstA), NO_EXTRA" ],
  68.  
  69. # GL_BLEND_EQUATION_RGB, which is what we're really after, is
  70. # defined identically to GL_BLEND_EQUATION.
  71.   [ "BLEND_EQUATION", "CONTEXT_ENUM(Color.Blend[0].EquationRGB), NO_EXTRA" ],
  72.   [ "BLEND_EQUATION_ALPHA_EXT", "CONTEXT_ENUM(Color.Blend[0].EquationA), NO_EXTRA" ],
  73.  
  74. # GL_ARB_texture_compression
  75.   [ "NUM_COMPRESSED_TEXTURE_FORMATS_ARB", "LOC_CUSTOM, TYPE_INT, 0, NO_EXTRA" ],
  76.   [ "COMPRESSED_TEXTURE_FORMATS", "LOC_CUSTOM, TYPE_INT_N, 0, NO_EXTRA" ],
  77.  
  78. # GL_ARB_multisample
  79.   [ "SAMPLE_ALPHA_TO_COVERAGE_ARB", "CONTEXT_BOOL(Multisample.SampleAlphaToCoverage), NO_EXTRA" ],
  80.   [ "SAMPLE_COVERAGE_ARB", "CONTEXT_BOOL(Multisample.SampleCoverage), NO_EXTRA" ],
  81.   [ "SAMPLE_COVERAGE_VALUE_ARB", "CONTEXT_FLOAT(Multisample.SampleCoverageValue), NO_EXTRA" ],
  82.   [ "SAMPLE_COVERAGE_INVERT_ARB", "CONTEXT_BOOL(Multisample.SampleCoverageInvert), NO_EXTRA" ],
  83.   [ "SAMPLE_BUFFERS_ARB", "BUFFER_INT(Visual.sampleBuffers), extra_new_buffers" ],
  84.   [ "SAMPLES_ARB", "BUFFER_INT(Visual.samples), extra_new_buffers" ],
  85.  
  86. # GL_ARB_sample_shading
  87.   [ "SAMPLE_SHADING_ARB", "CONTEXT_BOOL(Multisample.SampleShading), extra_gl40_ARB_sample_shading" ],
  88.   [ "MIN_SAMPLE_SHADING_VALUE_ARB", "CONTEXT_FLOAT(Multisample.MinSampleShadingValue), extra_gl40_ARB_sample_shading" ],
  89.  
  90. # GL_SGIS_generate_mipmap
  91.   [ "GENERATE_MIPMAP_HINT_SGIS", "CONTEXT_ENUM(Hint.GenerateMipmap), NO_EXTRA" ],
  92.  
  93. # GL_ARB_vertex_buffer_object
  94.   [ "ARRAY_BUFFER_BINDING_ARB", "LOC_CUSTOM, TYPE_INT, 0, NO_EXTRA" ],
  95.  
  96. # GL_ARB_vertex_buffer_object
  97. # GL_WEIGHT_ARRAY_BUFFER_BINDING_ARB - not supported
  98.   [ "ELEMENT_ARRAY_BUFFER_BINDING_ARB", "LOC_CUSTOM, TYPE_INT, 0, NO_EXTRA" ],
  99.  
  100. # GL_ARB_color_buffer_float
  101.   [ "CLAMP_VERTEX_COLOR", "CONTEXT_ENUM(Light.ClampVertexColor), extra_ARB_color_buffer_float" ],
  102.   [ "CLAMP_FRAGMENT_COLOR", "CONTEXT_ENUM(Color.ClampFragmentColor), extra_ARB_color_buffer_float" ],
  103.   [ "CLAMP_READ_COLOR", "CONTEXT_ENUM(Color.ClampReadColor), extra_ARB_color_buffer_float_or_glcore" ],
  104.  
  105. # GL_ARB_copy_buffer
  106.   [ "COPY_READ_BUFFER", "LOC_CUSTOM, TYPE_INT, 0, NO_EXTRA" ],
  107.   [ "COPY_WRITE_BUFFER", "LOC_CUSTOM, TYPE_INT, 0, NO_EXTRA" ],
  108.  
  109. # GL_OES_read_format
  110.   [ "IMPLEMENTATION_COLOR_READ_TYPE_OES", "LOC_CUSTOM, TYPE_INT, 0, extra_new_buffers" ],
  111.   [ "IMPLEMENTATION_COLOR_READ_FORMAT_OES", "LOC_CUSTOM, TYPE_INT, 0, extra_new_buffers" ],
  112.  
  113. # GL_EXT_framebuffer_object
  114.   [ "FRAMEBUFFER_BINDING_EXT", "BUFFER_INT(Name), NO_EXTRA" ],
  115.   [ "RENDERBUFFER_BINDING_EXT", "LOC_CUSTOM, TYPE_INT, 0, NO_EXTRA" ],
  116.   [ "MAX_RENDERBUFFER_SIZE_EXT", "CONTEXT_INT(Const.MaxRenderbufferSize), NO_EXTRA" ],
  117.  
  118. # This entry isn't spec'ed for GLES 2, but is needed for Mesa's
  119. # GLSL:
  120.   [ "MAX_CLIP_PLANES", "CONTEXT_INT(Const.MaxClipPlanes), NO_EXTRA" ],
  121.  
  122. # GL_{APPLE,ARB,OES}_vertex_array_object
  123.   [ "VERTEX_ARRAY_BINDING_APPLE", "ARRAY_INT(Name), NO_EXTRA" ],
  124.  
  125. # GL_EXT_texture_filter_anisotropic
  126.   [ "MAX_TEXTURE_MAX_ANISOTROPY_EXT", "CONTEXT_FLOAT(Const.MaxTextureMaxAnisotropy), extra_EXT_texture_filter_anisotropic" ],
  127. ]},
  128.  
  129. # Enums in OpenGL and GLES1
  130. { "apis": ["GL", "GLES", "GL_CORE"], "params": [
  131.   [ "MAX_LIGHTS", "CONTEXT_INT(Const.MaxLights), NO_EXTRA" ],
  132.   [ "LIGHT0", "CONTEXT_BOOL(Light.Light[0].Enabled), NO_EXTRA" ],
  133.   [ "LIGHT1", "CONTEXT_BOOL(Light.Light[1].Enabled), NO_EXTRA" ],
  134.   [ "LIGHT2", "CONTEXT_BOOL(Light.Light[2].Enabled), NO_EXTRA" ],
  135.   [ "LIGHT3", "CONTEXT_BOOL(Light.Light[3].Enabled), NO_EXTRA" ],
  136.   [ "LIGHT4", "CONTEXT_BOOL(Light.Light[4].Enabled), NO_EXTRA" ],
  137.   [ "LIGHT5", "CONTEXT_BOOL(Light.Light[5].Enabled), NO_EXTRA" ],
  138.   [ "LIGHT6", "CONTEXT_BOOL(Light.Light[6].Enabled), NO_EXTRA" ],
  139.   [ "LIGHT7", "CONTEXT_BOOL(Light.Light[7].Enabled), NO_EXTRA" ],
  140.   [ "LIGHTING", "CONTEXT_BOOL(Light.Enabled), NO_EXTRA" ],
  141.   [ "LIGHT_MODEL_AMBIENT", "CONTEXT_FIELD(Light.Model.Ambient[0], TYPE_FLOATN_4), NO_EXTRA" ],
  142.   [ "LIGHT_MODEL_TWO_SIDE", "CONTEXT_BOOL(Light.Model.TwoSide), NO_EXTRA" ],
  143.   [ "ALPHA_TEST", "CONTEXT_BOOL(Color.AlphaEnabled), NO_EXTRA" ],
  144.   [ "ALPHA_TEST_FUNC", "CONTEXT_ENUM(Color.AlphaFunc), NO_EXTRA" ],
  145.   [ "ALPHA_TEST_REF", "LOC_CUSTOM, TYPE_FLOATN, 0, extra_new_frag_clamp" ],
  146.   [ "BLEND_DST", "CONTEXT_ENUM(Color.Blend[0].DstRGB), NO_EXTRA" ],
  147.   [ "CLIP_DISTANCE0", "CONTEXT_BIT0(Transform.ClipPlanesEnabled), extra_valid_clip_distance" ],
  148.   [ "CLIP_DISTANCE1", "CONTEXT_BIT1(Transform.ClipPlanesEnabled), extra_valid_clip_distance" ],
  149.   [ "CLIP_DISTANCE2", "CONTEXT_BIT2(Transform.ClipPlanesEnabled), extra_valid_clip_distance" ],
  150.   [ "CLIP_DISTANCE3", "CONTEXT_BIT3(Transform.ClipPlanesEnabled), extra_valid_clip_distance" ],
  151.   [ "CLIP_DISTANCE4", "CONTEXT_BIT4(Transform.ClipPlanesEnabled), extra_valid_clip_distance" ],
  152.   [ "CLIP_DISTANCE5", "CONTEXT_BIT5(Transform.ClipPlanesEnabled), extra_valid_clip_distance" ],
  153.   [ "CLIP_DISTANCE6", "CONTEXT_BIT6(Transform.ClipPlanesEnabled), extra_valid_clip_distance" ],
  154.   [ "CLIP_DISTANCE7", "CONTEXT_BIT7(Transform.ClipPlanesEnabled), extra_valid_clip_distance" ],
  155.   [ "COLOR_MATERIAL", "CONTEXT_BOOL(Light.ColorMaterialEnabled), NO_EXTRA" ],
  156.   [ "CURRENT_COLOR", "CONTEXT_FIELD(Current.Attrib[VERT_ATTRIB_COLOR0][0], TYPE_FLOATN_4), extra_flush_current" ],
  157.   [ "CURRENT_NORMAL", "CONTEXT_FIELD(Current.Attrib[VERT_ATTRIB_NORMAL][0], TYPE_FLOATN_3), extra_flush_current" ],
  158.   [ "CURRENT_TEXTURE_COORDS", "LOC_CUSTOM, TYPE_FLOAT_4, 0, extra_flush_current_valid_texture_unit" ],
  159.   [ "POINT_DISTANCE_ATTENUATION", "CONTEXT_FLOAT3(Point.Params[0]), NO_EXTRA" ],
  160.   [ "FOG", "CONTEXT_BOOL(Fog.Enabled), NO_EXTRA" ],
  161.   [ "FOG_COLOR", "LOC_CUSTOM, TYPE_FLOATN_4, 0, extra_new_frag_clamp" ],
  162.   [ "FOG_DENSITY", "CONTEXT_FLOAT(Fog.Density), NO_EXTRA" ],
  163.   [ "FOG_END", "CONTEXT_FLOAT(Fog.End), NO_EXTRA" ],
  164.   [ "FOG_HINT", "CONTEXT_ENUM(Hint.Fog), NO_EXTRA" ],
  165.   [ "FOG_MODE", "CONTEXT_ENUM(Fog.Mode), NO_EXTRA" ],
  166.   [ "FOG_START", "CONTEXT_FLOAT(Fog.Start), NO_EXTRA" ],
  167.   [ "LINE_SMOOTH", "CONTEXT_BOOL(Line.SmoothFlag), NO_EXTRA" ],
  168.   [ "LINE_SMOOTH_HINT", "CONTEXT_ENUM(Hint.LineSmooth), NO_EXTRA" ],
  169.   [ "LINE_WIDTH_RANGE", "CONTEXT_FLOAT2(Const.MinLineWidthAA), NO_EXTRA" ],
  170.   [ "COLOR_LOGIC_OP", "CONTEXT_BOOL(Color.ColorLogicOpEnabled), NO_EXTRA" ],
  171.   [ "LOGIC_OP_MODE", "CONTEXT_ENUM(Color.LogicOp), NO_EXTRA" ],
  172.   [ "MATRIX_MODE", "CONTEXT_ENUM(Transform.MatrixMode), NO_EXTRA" ],
  173.   [ "MAX_MODELVIEW_STACK_DEPTH", "CONST(MAX_MODELVIEW_STACK_DEPTH), NO_EXTRA" ],
  174.   [ "MAX_PROJECTION_STACK_DEPTH", "CONST(MAX_PROJECTION_STACK_DEPTH), NO_EXTRA" ],
  175.   [ "MAX_TEXTURE_STACK_DEPTH", "CONST(MAX_TEXTURE_STACK_DEPTH), NO_EXTRA" ],
  176.   [ "MODELVIEW_MATRIX", "CONTEXT_MATRIX(ModelviewMatrixStack.Top), NO_EXTRA" ],
  177.   [ "MODELVIEW_STACK_DEPTH", "LOC_CUSTOM, TYPE_INT, offsetof(struct gl_context, ModelviewMatrixStack.Depth), NO_EXTRA" ],
  178.   [ "NORMALIZE", "CONTEXT_BOOL(Transform.Normalize), NO_EXTRA" ],
  179.   [ "PACK_SKIP_IMAGES", "CONTEXT_INT(Pack.SkipImages), NO_EXTRA" ],
  180.   [ "PERSPECTIVE_CORRECTION_HINT", "CONTEXT_ENUM(Hint.PerspectiveCorrection), NO_EXTRA" ],
  181.   [ "POINT_SIZE", "CONTEXT_FLOAT(Point.Size), NO_EXTRA" ],
  182.   [ "POINT_SIZE_RANGE", "CONTEXT_FLOAT2(Const.MinPointSizeAA), NO_EXTRA" ],
  183.   [ "POINT_SMOOTH", "CONTEXT_BOOL(Point.SmoothFlag), NO_EXTRA" ],
  184.   [ "POINT_SMOOTH_HINT", "CONTEXT_ENUM(Hint.PointSmooth), NO_EXTRA" ],
  185.   [ "POINT_SIZE_MIN_EXT", "CONTEXT_FLOAT(Point.MinSize), NO_EXTRA" ],
  186.   [ "POINT_SIZE_MAX_EXT", "CONTEXT_FLOAT(Point.MaxSize), NO_EXTRA" ],
  187.   [ "POINT_FADE_THRESHOLD_SIZE_EXT", "CONTEXT_FLOAT(Point.Threshold), NO_EXTRA" ],
  188.   [ "PROJECTION_MATRIX", "CONTEXT_MATRIX(ProjectionMatrixStack.Top), NO_EXTRA" ],
  189.   [ "PROJECTION_STACK_DEPTH", "LOC_CUSTOM, TYPE_INT, offsetof(struct gl_context, ProjectionMatrixStack.Depth), NO_EXTRA" ],
  190.   [ "RESCALE_NORMAL", "CONTEXT_BOOL(Transform.RescaleNormals), NO_EXTRA" ],
  191.   [ "SHADE_MODEL", "CONTEXT_ENUM(Light.ShadeModel), NO_EXTRA" ],
  192.   [ "TEXTURE_2D", "LOC_CUSTOM, TYPE_BOOLEAN, 0, NO_EXTRA" ],
  193.   [ "TEXTURE_MATRIX", "LOC_CUSTOM, TYPE_MATRIX, 0, extra_valid_texture_unit" ],
  194.   [ "TEXTURE_STACK_DEPTH", "LOC_CUSTOM, TYPE_INT, 0, extra_valid_texture_unit" ],
  195.   [ "VERTEX_ARRAY", "ARRAY_BOOL(VertexAttrib[VERT_ATTRIB_POS].Enabled), NO_EXTRA" ],
  196.   [ "VERTEX_ARRAY_SIZE", "ARRAY_INT(VertexAttrib[VERT_ATTRIB_POS].Size), NO_EXTRA" ],
  197.   [ "VERTEX_ARRAY_TYPE", "ARRAY_ENUM(VertexAttrib[VERT_ATTRIB_POS].Type), NO_EXTRA" ],
  198.   [ "VERTEX_ARRAY_STRIDE", "ARRAY_INT(VertexAttrib[VERT_ATTRIB_POS].Stride), NO_EXTRA" ],
  199.   [ "NORMAL_ARRAY", "ARRAY_BOOL(VertexAttrib[VERT_ATTRIB_NORMAL].Enabled), NO_EXTRA" ],
  200.   [ "NORMAL_ARRAY_TYPE", "ARRAY_ENUM(VertexAttrib[VERT_ATTRIB_NORMAL].Type), NO_EXTRA" ],
  201.   [ "NORMAL_ARRAY_STRIDE", "ARRAY_INT(VertexAttrib[VERT_ATTRIB_NORMAL].Stride), NO_EXTRA" ],
  202.   [ "COLOR_ARRAY", "ARRAY_BOOL(VertexAttrib[VERT_ATTRIB_COLOR0].Enabled), NO_EXTRA" ],
  203.   [ "COLOR_ARRAY_SIZE", "LOC_CUSTOM, TYPE_INT, 0, NO_EXTRA" ],
  204.   [ "COLOR_ARRAY_TYPE", "ARRAY_ENUM(VertexAttrib[VERT_ATTRIB_COLOR0].Type), NO_EXTRA" ],
  205.   [ "COLOR_ARRAY_STRIDE", "ARRAY_INT(VertexAttrib[VERT_ATTRIB_COLOR0].Stride), NO_EXTRA" ],
  206.   [ "TEXTURE_COORD_ARRAY", "LOC_CUSTOM, TYPE_BOOLEAN, offsetof(struct gl_vertex_attrib_array, Enabled), NO_EXTRA" ],
  207.   [ "TEXTURE_COORD_ARRAY_SIZE", "LOC_CUSTOM, TYPE_INT, offsetof(struct gl_vertex_attrib_array, Size), NO_EXTRA" ],
  208.   [ "TEXTURE_COORD_ARRAY_TYPE", "LOC_CUSTOM, TYPE_ENUM, offsetof(struct gl_vertex_attrib_array, Type), NO_EXTRA" ],
  209.   [ "TEXTURE_COORD_ARRAY_STRIDE", "LOC_CUSTOM, TYPE_INT, offsetof(struct gl_vertex_attrib_array, Stride), NO_EXTRA" ],
  210.  
  211. # GL_ARB_multitexture
  212.   [ "MAX_TEXTURE_UNITS", "CONTEXT_INT(Const.MaxTextureUnits), NO_EXTRA" ],
  213.   [ "CLIENT_ACTIVE_TEXTURE", "LOC_CUSTOM, TYPE_INT, 0, NO_EXTRA" ],
  214.  
  215. # GL_ARB_texture_cube_map
  216.   [ "TEXTURE_CUBE_MAP_ARB", "LOC_CUSTOM, TYPE_BOOLEAN, 0, NO_EXTRA" ],
  217. # S, T, and R are always set at the same time
  218.   [ "TEXTURE_GEN_STR_OES", "LOC_TEXUNIT, TYPE_BIT_0, offsetof(struct gl_texture_unit, TexGenEnabled), NO_EXTRA" ],
  219.  
  220. # GL_ARB_multisample
  221.   [ "MULTISAMPLE_ARB", "CONTEXT_BOOL(Multisample.Enabled), NO_EXTRA" ],
  222.   [ "SAMPLE_ALPHA_TO_ONE_ARB", "CONTEXT_BOOL(Multisample.SampleAlphaToOne), NO_EXTRA" ],
  223.  
  224. # GL_ARB_vertex_buffer_object
  225.   [ "VERTEX_ARRAY_BUFFER_BINDING_ARB", "LOC_CUSTOM, TYPE_INT, offsetof(struct gl_vertex_array_object, VertexBinding[VERT_ATTRIB_POS].BufferObj), NO_EXTRA" ],
  226.   [ "NORMAL_ARRAY_BUFFER_BINDING_ARB", "LOC_CUSTOM, TYPE_INT, offsetof(struct gl_vertex_array_object, VertexBinding[VERT_ATTRIB_NORMAL].BufferObj), NO_EXTRA" ],
  227.   [ "COLOR_ARRAY_BUFFER_BINDING_ARB", "LOC_CUSTOM, TYPE_INT, offsetof(struct gl_vertex_array_object, VertexBinding[VERT_ATTRIB_COLOR0].BufferObj), NO_EXTRA" ],
  228.   [ "TEXTURE_COORD_ARRAY_BUFFER_BINDING_ARB", "LOC_CUSTOM, TYPE_INT, NO_OFFSET, NO_EXTRA" ],
  229.  
  230. # GL_OES_point_sprite
  231.   [ "POINT_SPRITE_NV", "CONTEXT_BOOL(Point.PointSprite), extra_NV_point_sprite_ARB_point_sprite" ],
  232. ]},
  233.  
  234.  
  235. { "apis": ["GLES"], "params": [
  236. # OES_point_size_array
  237.   [ "POINT_SIZE_ARRAY_OES", "ARRAY_FIELD(VertexAttrib[VERT_ATTRIB_POINT_SIZE].Enabled, TYPE_BOOLEAN)" ],
  238.   [ "POINT_SIZE_ARRAY_TYPE_OES", "ARRAY_FIELD(VertexAttrib[VERT_ATTRIB_POINT_SIZE].Type, TYPE_ENUM)" ],
  239.   [ "POINT_SIZE_ARRAY_STRIDE_OES", "ARRAY_FIELD(VertexAttrib[VERT_ATTRIB_POINT_SIZE].Stride, TYPE_INT)" ],
  240.   [ "POINT_SIZE_ARRAY_BUFFER_BINDING_OES", "LOC_CUSTOM, TYPE_INT, 0" ],
  241. ]},
  242.  
  243. { "apis": ["GL", "GL_CORE", "GLES2"], "params": [
  244. # == GL_MAX_TEXTURE_COORDS_NV
  245.   [ "MAX_TEXTURE_COORDS_ARB", "CONTEXT_INT(Const.MaxTextureCoordUnits), extra_ARB_fragment_program" ],
  246.   [ "PACK_IMAGE_HEIGHT", "CONTEXT_INT(Pack.ImageHeight), NO_EXTRA" ],
  247.   [ "PACK_ROW_LENGTH", "CONTEXT_INT(Pack.RowLength), NO_EXTRA" ],
  248.   [ "PACK_SKIP_PIXELS", "CONTEXT_INT(Pack.SkipPixels), NO_EXTRA" ],
  249.   [ "PACK_SKIP_ROWS", "CONTEXT_INT(Pack.SkipRows), NO_EXTRA" ],
  250.   [ "UNPACK_ROW_LENGTH", "CONTEXT_INT(Unpack.RowLength), NO_EXTRA" ],
  251.   [ "UNPACK_SKIP_PIXELS", "CONTEXT_INT(Unpack.SkipPixels), NO_EXTRA" ],
  252.   [ "UNPACK_SKIP_ROWS", "CONTEXT_INT(Unpack.SkipRows), NO_EXTRA" ],
  253.   [ "UNPACK_SKIP_IMAGES", "CONTEXT_INT(Unpack.SkipImages), NO_EXTRA" ],
  254.   [ "UNPACK_IMAGE_HEIGHT", "CONTEXT_INT(Unpack.ImageHeight), NO_EXTRA" ],
  255.  
  256. # GL_ARB_draw_buffers
  257.   [ "MAX_DRAW_BUFFERS_ARB", "CONTEXT_INT(Const.MaxDrawBuffers), NO_EXTRA" ],
  258.  
  259. # GL_EXT_framebuffer_object / GL_NV_fbo_color_attachments
  260.   [ "MAX_COLOR_ATTACHMENTS", "CONTEXT_INT(Const.MaxColorAttachments), NO_EXTRA" ],
  261.  
  262. # GL_ARB_draw_buffers / GL_NV_draw_buffers (for ES 2.0)
  263.   [ "DRAW_BUFFER0_ARB", "BUFFER_ENUM(ColorDrawBuffer[0]), NO_EXTRA" ],
  264.   [ "DRAW_BUFFER1_ARB", "BUFFER_ENUM(ColorDrawBuffer[1]), extra_valid_draw_buffer" ],
  265.   [ "DRAW_BUFFER2_ARB", "BUFFER_ENUM(ColorDrawBuffer[2]), extra_valid_draw_buffer" ],
  266.   [ "DRAW_BUFFER3_ARB", "BUFFER_ENUM(ColorDrawBuffer[3]), extra_valid_draw_buffer" ],
  267.   [ "DRAW_BUFFER4_ARB", "BUFFER_ENUM(ColorDrawBuffer[4]), extra_valid_draw_buffer" ],
  268.   [ "DRAW_BUFFER5_ARB", "BUFFER_ENUM(ColorDrawBuffer[5]), extra_valid_draw_buffer" ],
  269.   [ "DRAW_BUFFER6_ARB", "BUFFER_ENUM(ColorDrawBuffer[6]), extra_valid_draw_buffer" ],
  270.   [ "DRAW_BUFFER7_ARB", "BUFFER_ENUM(ColorDrawBuffer[7]), extra_valid_draw_buffer" ],
  271.   [ "BLEND_COLOR_EXT", "LOC_CUSTOM, TYPE_FLOATN_4, 0, extra_new_frag_clamp" ],
  272.  
  273. # GL_ARB_fragment_program
  274. # == GL_MAX_TEXTURE_IMAGE_UNITS_NV
  275.   [ "MAX_TEXTURE_IMAGE_UNITS_ARB", "CONTEXT_INT(Const.Program[MESA_SHADER_FRAGMENT].MaxTextureImageUnits), extra_ARB_fragment_program" ],
  276.   [ "MAX_VERTEX_TEXTURE_IMAGE_UNITS_ARB", "CONTEXT_INT(Const.Program[MESA_SHADER_VERTEX].MaxTextureImageUnits), extra_ARB_vertex_shader" ],
  277.   [ "MAX_COMBINED_TEXTURE_IMAGE_UNITS_ARB", "CONTEXT_INT(Const.MaxCombinedTextureImageUnits), extra_ARB_vertex_shader" ],
  278.  
  279. # GL_ARB_shader_objects
  280. # Actually, this token isn't part of GL_ARB_shader_objects, but is
  281. # close enough for now.
  282.   [ "CURRENT_PROGRAM", "LOC_CUSTOM, TYPE_INT, 0, NO_EXTRA" ],
  283.  
  284. # OpenGL 2.0
  285.   [ "STENCIL_BACK_FUNC", "CONTEXT_ENUM(Stencil.Function[1]), NO_EXTRA" ],
  286.   [ "STENCIL_BACK_VALUE_MASK", "CONTEXT_INT(Stencil.ValueMask[1]), NO_EXTRA" ],
  287.   [ "STENCIL_BACK_WRITEMASK", "CONTEXT_INT(Stencil.WriteMask[1]), NO_EXTRA" ],
  288.   [ "STENCIL_BACK_REF", "LOC_CUSTOM, TYPE_INT, NO_OFFSET, NO_EXTRA" ],
  289.   [ "STENCIL_BACK_FAIL", "CONTEXT_ENUM(Stencil.FailFunc[1]), NO_EXTRA" ],
  290.   [ "STENCIL_BACK_PASS_DEPTH_FAIL", "CONTEXT_ENUM(Stencil.ZFailFunc[1]), NO_EXTRA" ],
  291.   [ "STENCIL_BACK_PASS_DEPTH_PASS", "CONTEXT_ENUM(Stencil.ZPassFunc[1]), NO_EXTRA" ],
  292.   [ "MAX_VERTEX_ATTRIBS_ARB", "CONTEXT_INT(Const.Program[MESA_SHADER_VERTEX].MaxAttribs), extra_ARB_vertex_program_api_es2" ],
  293.  
  294. # OES_texture_3D
  295.   [ "TEXTURE_BINDING_3D", "LOC_CUSTOM, TYPE_INT, TEXTURE_3D_INDEX, NO_EXTRA" ],
  296.   [ "MAX_3D_TEXTURE_SIZE", "LOC_CUSTOM, TYPE_INT, offsetof(struct gl_context, Const.Max3DTextureLevels), NO_EXTRA" ],
  297.  
  298. # GL_ARB_fragment_program/OES_standard_derivatives
  299.   [ "FRAGMENT_SHADER_DERIVATIVE_HINT", "CONTEXT_ENUM(Hint.FragmentShaderDerivative), extra_ARB_fragment_shader" ],
  300.  
  301. # GL_NV_read_buffer
  302.   [ "READ_BUFFER", "LOC_CUSTOM, TYPE_ENUM, NO_OFFSET, extra_NV_read_buffer_api_gl" ],
  303.  
  304. # GL_ARB_ES2_compatibility
  305.   [ "SHADER_COMPILER", "CONST(1), extra_ARB_ES2_compatibility_api_es2" ],
  306.   [ "MAX_VARYING_VECTORS", "CONTEXT_INT(Const.MaxVarying), extra_ARB_ES2_compatibility_api_es2" ],
  307.   [ "MAX_VERTEX_UNIFORM_VECTORS", "LOC_CUSTOM, TYPE_INT, 0, extra_ARB_ES2_compatibility_api_es2" ],
  308.   [ "MAX_FRAGMENT_UNIFORM_VECTORS", "LOC_CUSTOM, TYPE_INT, 0, extra_ARB_ES2_compatibility_api_es2" ],
  309.   [ "NUM_SHADER_BINARY_FORMATS", "CONST(0), extra_ARB_ES2_compatibility_api_es2" ],
  310.   [ "SHADER_BINARY_FORMATS", "LOC_CUSTOM, TYPE_INVALID, 0, extra_ARB_ES2_compatibility_api_es2" ],
  311.  
  312. # GL_ARB_get_program_binary / GL_OES_get_program_binary
  313.   [ "NUM_PROGRAM_BINARY_FORMATS", "CONST(0), NO_EXTRA" ],
  314.   [ "PROGRAM_BINARY_FORMATS", "LOC_CUSTOM, TYPE_INVALID, 0, NO_EXTRA" ],
  315.  
  316. # GL_INTEL_performance_query
  317.   [ "PERFQUERY_QUERY_NAME_LENGTH_MAX_INTEL", "CONST(MAX_PERFQUERY_QUERY_NAME_LENGTH), extra_INTEL_performance_query" ],
  318.   [ "PERFQUERY_COUNTER_NAME_LENGTH_MAX_INTEL", "CONST(MAX_PERFQUERY_COUNTER_NAME_LENGTH), extra_INTEL_performance_query" ],
  319.   [ "PERFQUERY_COUNTER_DESC_LENGTH_MAX_INTEL", "CONST(MAX_PERFQUERY_COUNTER_DESC_LENGTH), extra_INTEL_performance_query" ],
  320.   [ "PERFQUERY_GPA_EXTENDED_COUNTERS_INTEL", "CONST(PERFQUERY_HAVE_GPA_EXTENDED_COUNTERS), extra_INTEL_performance_query" ],
  321.  
  322. # GL_KHR_context_flush_control
  323.   [ "CONTEXT_RELEASE_BEHAVIOR", "CONTEXT_ENUM(Const.ContextReleaseBehavior), NO_EXTRA" ],
  324. ]},
  325.  
  326. # GLES3 is not a typo.
  327. { "apis": ["GL", "GLES", "GLES3", "GL_CORE"], "params": [
  328. # GL_EXT_texture_lod_bias
  329.   [ "MAX_TEXTURE_LOD_BIAS_EXT", "CONTEXT_FLOAT(Const.MaxTextureLodBias), NO_EXTRA" ],
  330. ]},
  331.  
  332.  
  333. # Enums in  OpenGL and ES 3.0
  334. { "apis": ["GL", "GL_CORE", "GLES3"], "params": [
  335. # GL 3.0 / GLES3
  336.   [ "NUM_EXTENSIONS", "LOC_CUSTOM, TYPE_INT, 0, extra_gl30_es3" ],
  337.   [ "MAJOR_VERSION", "LOC_CUSTOM, TYPE_INT, 0, extra_gl30_es3" ],
  338.   [ "MINOR_VERSION", "LOC_CUSTOM, TYPE_INT, 0, extra_gl30_es3" ],
  339.  
  340.   # GL 3.2 / GLES3
  341.   [ "MAX_VERTEX_OUTPUT_COMPONENTS", "CONTEXT_INT(Const.Program[MESA_SHADER_VERTEX].MaxOutputComponents), extra_gl32_es3" ],
  342.   [ "MAX_FRAGMENT_INPUT_COMPONENTS", "CONTEXT_INT(Const.Program[MESA_SHADER_FRAGMENT].MaxInputComponents), extra_gl32_es3" ],
  343.  
  344. # GL_ARB_ES3_compatibility
  345.   [ "MAX_ELEMENT_INDEX", "CONTEXT_INT64(Const.MaxElementIndex), extra_ARB_ES3_compatibility_api_es3"],
  346.   [ "PRIMITIVE_RESTART_FIXED_INDEX", "CONTEXT_BOOL(Array.PrimitiveRestartFixedIndex), extra_ARB_ES3_compatibility_api_es3" ],
  347.  
  348. # GL_ARB_fragment_shader
  349.   [ "MAX_FRAGMENT_UNIFORM_COMPONENTS_ARB", "CONTEXT_INT(Const.Program[MESA_SHADER_FRAGMENT].MaxUniformComponents), extra_ARB_fragment_shader" ],
  350.  
  351. # GL_ARB_framebuffer_object
  352.   [ "MAX_SAMPLES", "CONTEXT_INT(Const.MaxSamples), extra_ARB_framebuffer_object_EXT_framebuffer_multisample" ],
  353.  
  354. # GL_ARB_sync
  355.   [ "MAX_SERVER_WAIT_TIMEOUT", "CONTEXT_INT64(Const.MaxServerWaitTimeout), extra_ARB_sync" ],
  356.  
  357. # GL_ARB_transform_feedback2
  358.   [ "TRANSFORM_FEEDBACK_BUFFER_PAUSED", "LOC_CUSTOM, TYPE_BOOLEAN, 0, extra_ARB_transform_feedback2_api_es3" ],
  359.   [ "TRANSFORM_FEEDBACK_BUFFER_ACTIVE", "LOC_CUSTOM, TYPE_BOOLEAN, 0, extra_ARB_transform_feedback2_api_es3" ],
  360.   [ "TRANSFORM_FEEDBACK_BINDING", "LOC_CUSTOM, TYPE_INT, 0, extra_ARB_transform_feedback2_api_es3" ],
  361.  
  362. # GL_ARB_uniform_buffer_object
  363.   [ "MAX_VERTEX_UNIFORM_BLOCKS", "CONTEXT_INT(Const.Program[MESA_SHADER_VERTEX].MaxUniformBlocks), extra_ARB_uniform_buffer_object" ],
  364.   [ "MAX_FRAGMENT_UNIFORM_BLOCKS", "CONTEXT_INT(Const.Program[MESA_SHADER_FRAGMENT].MaxUniformBlocks), extra_ARB_uniform_buffer_object" ],
  365.   [ "MAX_COMBINED_UNIFORM_BLOCKS", "CONTEXT_INT(Const.MaxCombinedUniformBlocks), extra_ARB_uniform_buffer_object" ],
  366.   [ "MAX_UNIFORM_BLOCK_SIZE", "CONTEXT_INT(Const.MaxUniformBlockSize), extra_ARB_uniform_buffer_object" ],
  367.   [ "MAX_UNIFORM_BUFFER_BINDINGS", "CONTEXT_INT(Const.MaxUniformBufferBindings), extra_ARB_uniform_buffer_object" ],
  368.   [ "MAX_COMBINED_VERTEX_UNIFORM_COMPONENTS", "CONTEXT_INT(Const.Program[MESA_SHADER_VERTEX].MaxCombinedUniformComponents), extra_ARB_uniform_buffer_object" ],
  369.   [ "MAX_COMBINED_FRAGMENT_UNIFORM_COMPONENTS", "CONTEXT_INT(Const.Program[MESA_SHADER_FRAGMENT].MaxCombinedUniformComponents), extra_ARB_uniform_buffer_object" ],
  370.   [ "UNIFORM_BUFFER_OFFSET_ALIGNMENT", "CONTEXT_INT(Const.UniformBufferOffsetAlignment), extra_ARB_uniform_buffer_object" ],
  371.   [ "UNIFORM_BUFFER_BINDING", "LOC_CUSTOM, TYPE_INT, 0, extra_ARB_uniform_buffer_object" ],
  372.  
  373. # GL_ARB_vertex_shader
  374.   [ "MAX_VERTEX_UNIFORM_COMPONENTS_ARB", "CONTEXT_INT(Const.Program[MESA_SHADER_VERTEX].MaxUniformComponents), extra_ARB_vertex_shader" ],
  375.   [ "MAX_VARYING_FLOATS_ARB", "LOC_CUSTOM, TYPE_INT, 0, extra_ARB_vertex_shader" ],
  376.  
  377. # GL_EXT_framebuffer_blit
  378. # NOTE: GL_DRAW_FRAMEBUFFER_BINDING_EXT == GL_FRAMEBUFFER_BINDING_EXT
  379.   [ "READ_FRAMEBUFFER_BINDING_EXT", "LOC_CUSTOM, TYPE_INT, 0, NO_EXTRA" ],
  380.  
  381. # GL_EXT_gpu_shader4 / GLSL 1.30
  382.   [ "MIN_PROGRAM_TEXEL_OFFSET", "CONTEXT_INT(Const.MinProgramTexelOffset), extra_GLSL_130_es3" ],
  383.   [ "MAX_PROGRAM_TEXEL_OFFSET", "CONTEXT_INT(Const.MaxProgramTexelOffset), extra_GLSL_130_es3" ],
  384.  
  385. # GL_EXT_pixel_buffer_object
  386.   [ "PIXEL_PACK_BUFFER_BINDING_EXT", "LOC_CUSTOM, TYPE_INT, 0, extra_EXT_pixel_buffer_object" ],
  387.   [ "PIXEL_UNPACK_BUFFER_BINDING_EXT", "LOC_CUSTOM, TYPE_INT, 0, extra_EXT_pixel_buffer_object" ],
  388.  
  389.   # GL_EXT_texture_array
  390.   [ "TEXTURE_BINDING_2D_ARRAY", "LOC_CUSTOM, TYPE_INT, TEXTURE_2D_ARRAY_INDEX, extra_EXT_texture_array_es3" ],
  391.   [ "MAX_ARRAY_TEXTURE_LAYERS_EXT", "CONTEXT_INT(Const.MaxArrayTextureLayers), extra_EXT_texture_array_es3" ],
  392.  
  393. # GL_EXT_transform_feedback
  394.   [ "TRANSFORM_FEEDBACK_BUFFER_BINDING", "LOC_CUSTOM, TYPE_INT, 0, extra_EXT_transform_feedback" ],
  395.   [ "RASTERIZER_DISCARD", "CONTEXT_BOOL(RasterDiscard), extra_EXT_transform_feedback" ],
  396.   [ "MAX_TRANSFORM_FEEDBACK_INTERLEAVED_COMPONENTS", "CONTEXT_INT(Const.MaxTransformFeedbackInterleavedComponents), extra_EXT_transform_feedback" ],
  397.   [ "MAX_TRANSFORM_FEEDBACK_SEPARATE_ATTRIBS", "CONTEXT_INT(Const.MaxTransformFeedbackBuffers), extra_EXT_transform_feedback" ],
  398.   [ "MAX_TRANSFORM_FEEDBACK_SEPARATE_COMPONENTS", "CONTEXT_INT(Const.MaxTransformFeedbackSeparateComponents), extra_EXT_transform_feedback" ],
  399. ]},
  400.  
  401. { "apis": ["GLES", "GLES2"], "params": [
  402. # GL_OES_EGL_image_external
  403.   [ "TEXTURE_BINDING_EXTERNAL_OES", "LOC_CUSTOM, TYPE_INT, TEXTURE_EXTERNAL_INDEX, extra_OES_EGL_image_external" ],
  404.   [ "TEXTURE_EXTERNAL_OES", "LOC_CUSTOM, TYPE_BOOLEAN, 0, extra_OES_EGL_image_external" ],
  405. ]},
  406.  
  407. { "apis": ["GL", "GL_CORE", "GLES3"], "params": [
  408. # GL_ARB_sampler_objects / GL 3.3 / GLES 3.0
  409.   [ "SAMPLER_BINDING", "LOC_CUSTOM, TYPE_INT, GL_SAMPLER_BINDING, NO_EXTRA" ],
  410. ]},
  411.  
  412. # Remaining enums are only in OpenGL
  413. { "apis": ["GL", "GL_CORE"], "params": [
  414.   [ "ACCUM_RED_BITS", "BUFFER_INT(Visual.accumRedBits), NO_EXTRA" ],
  415.   [ "ACCUM_GREEN_BITS", "BUFFER_INT(Visual.accumGreenBits), NO_EXTRA" ],
  416.   [ "ACCUM_BLUE_BITS", "BUFFER_INT(Visual.accumBlueBits), NO_EXTRA" ],
  417.   [ "ACCUM_ALPHA_BITS", "BUFFER_INT(Visual.accumAlphaBits), NO_EXTRA" ],
  418.   [ "ACCUM_CLEAR_VALUE", "CONTEXT_FIELD(Accum.ClearColor[0], TYPE_FLOATN_4), NO_EXTRA" ],
  419.   [ "ALPHA_BIAS", "CONTEXT_FLOAT(Pixel.AlphaBias), NO_EXTRA" ],
  420.   [ "ALPHA_SCALE", "CONTEXT_FLOAT(Pixel.AlphaScale), NO_EXTRA" ],
  421.   [ "ATTRIB_STACK_DEPTH", "CONTEXT_INT(AttribStackDepth), NO_EXTRA" ],
  422.   [ "AUTO_NORMAL", "CONTEXT_BOOL(Eval.AutoNormal), NO_EXTRA" ],
  423.   [ "AUX_BUFFERS", "BUFFER_INT(Visual.numAuxBuffers), NO_EXTRA" ],
  424.   [ "BLUE_BIAS", "CONTEXT_FLOAT(Pixel.BlueBias), NO_EXTRA" ],
  425.   [ "BLUE_SCALE", "CONTEXT_FLOAT(Pixel.BlueScale), NO_EXTRA" ],
  426.   [ "CLIP_DEPTH_MODE", "CONTEXT_ENUM(Transform.ClipDepthMode), extra_ARB_clip_control" ],
  427.   [ "CLIP_ORIGIN", "CONTEXT_ENUM(Transform.ClipOrigin), extra_ARB_clip_control" ],
  428.   [ "CLIENT_ATTRIB_STACK_DEPTH", "CONTEXT_INT(ClientAttribStackDepth), NO_EXTRA" ],
  429.   [ "COLOR_MATERIAL_FACE", "CONTEXT_ENUM(Light.ColorMaterialFace), NO_EXTRA" ],
  430.   [ "COLOR_MATERIAL_PARAMETER", "CONTEXT_ENUM(Light.ColorMaterialMode), NO_EXTRA" ],
  431.   [ "CURRENT_INDEX", "CONTEXT_FLOAT(Current.Attrib[VERT_ATTRIB_COLOR_INDEX][0]), extra_flush_current" ],
  432.   [ "CURRENT_RASTER_COLOR", "CONTEXT_FIELD(Current.RasterColor[0], TYPE_FLOATN_4), NO_EXTRA" ],
  433.   [ "CURRENT_RASTER_DISTANCE", "CONTEXT_FLOAT(Current.RasterDistance), NO_EXTRA" ],
  434.   [ "CURRENT_RASTER_INDEX", "CONST(1), NO_EXTRA" ],
  435.   [ "CURRENT_RASTER_POSITION", "CONTEXT_FLOAT4(Current.RasterPos[0]), NO_EXTRA" ],
  436.   [ "CURRENT_RASTER_SECONDARY_COLOR", "CONTEXT_FIELD(Current.RasterSecondaryColor[0], TYPE_FLOATN_4), NO_EXTRA" ],
  437.   [ "CURRENT_RASTER_TEXTURE_COORDS", "LOC_CUSTOM, TYPE_FLOAT_4, 0, extra_valid_texture_unit" ],
  438.   [ "CURRENT_RASTER_POSITION_VALID", "CONTEXT_BOOL(Current.RasterPosValid), NO_EXTRA" ],
  439.   [ "DEPTH_BIAS", "CONTEXT_FLOAT(Pixel.DepthBias), NO_EXTRA" ],
  440.   [ "DEPTH_SCALE", "CONTEXT_FLOAT(Pixel.DepthScale), NO_EXTRA" ],
  441.   [ "DOUBLEBUFFER", "BUFFER_INT(Visual.doubleBufferMode), NO_EXTRA" ],
  442.   [ "DRAW_BUFFER", "BUFFER_ENUM(ColorDrawBuffer[0]), NO_EXTRA" ],
  443.   [ "EDGE_FLAG", "LOC_CUSTOM, TYPE_BOOLEAN, 0, extra_flush_current" ],
  444.   [ "FEEDBACK_BUFFER_SIZE", "CONTEXT_INT(Feedback.BufferSize), NO_EXTRA" ],
  445.   [ "FEEDBACK_BUFFER_TYPE", "CONTEXT_ENUM(Feedback.Type), NO_EXTRA" ],
  446.   [ "FOG_INDEX", "CONTEXT_FLOAT(Fog.Index), NO_EXTRA" ],
  447.   [ "GREEN_BIAS", "CONTEXT_FLOAT(Pixel.GreenBias), NO_EXTRA" ],
  448.   [ "GREEN_SCALE", "CONTEXT_FLOAT(Pixel.GreenScale), NO_EXTRA" ],
  449.   [ "INDEX_BITS", "BUFFER_INT(Visual.indexBits), extra_new_buffers" ],
  450.   [ "INDEX_CLEAR_VALUE", "CONTEXT_INT(Color.ClearIndex), NO_EXTRA" ],
  451.   [ "INDEX_MODE", "CONST(0) , NO_EXTRA" ],
  452.   [ "INDEX_OFFSET", "CONTEXT_INT(Pixel.IndexOffset), NO_EXTRA" ],
  453.   [ "INDEX_SHIFT", "CONTEXT_INT(Pixel.IndexShift), NO_EXTRA" ],
  454.   [ "INDEX_WRITEMASK", "CONTEXT_INT(Color.IndexMask), NO_EXTRA" ],
  455.   [ "LIGHT_MODEL_COLOR_CONTROL", "CONTEXT_ENUM(Light.Model.ColorControl), NO_EXTRA" ],
  456.   [ "LIGHT_MODEL_LOCAL_VIEWER", "CONTEXT_BOOL(Light.Model.LocalViewer), NO_EXTRA" ],
  457.   [ "LINE_STIPPLE", "CONTEXT_BOOL(Line.StippleFlag), NO_EXTRA" ],
  458.   [ "LINE_STIPPLE_PATTERN", "LOC_CUSTOM, TYPE_INT, 0, NO_EXTRA" ],
  459.   [ "LINE_STIPPLE_REPEAT", "CONTEXT_INT(Line.StippleFactor), NO_EXTRA" ],
  460.   [ "LINE_WIDTH_GRANULARITY", "CONTEXT_FLOAT(Const.LineWidthGranularity), NO_EXTRA" ],
  461.   [ "LIST_BASE", "CONTEXT_INT(List.ListBase), NO_EXTRA" ],
  462.   [ "LIST_INDEX", "LOC_CUSTOM, TYPE_INT, 0, NO_EXTRA" ],
  463.   [ "LIST_MODE", "LOC_CUSTOM, TYPE_ENUM, 0, NO_EXTRA" ],
  464.   [ "INDEX_LOGIC_OP", "CONTEXT_BOOL(Color.IndexLogicOpEnabled), NO_EXTRA" ],
  465.   [ "MAP1_COLOR_4", "CONTEXT_BOOL(Eval.Map1Color4), NO_EXTRA" ],
  466.   [ "MAP1_GRID_DOMAIN", "CONTEXT_FLOAT2(Eval.MapGrid1u1), NO_EXTRA" ],
  467.   [ "MAP1_GRID_SEGMENTS", "CONTEXT_INT(Eval.MapGrid1un), NO_EXTRA" ],
  468.   [ "MAP1_INDEX", "CONTEXT_BOOL(Eval.Map1Index), NO_EXTRA" ],
  469.   [ "MAP1_NORMAL", "CONTEXT_BOOL(Eval.Map1Normal), NO_EXTRA" ],
  470.   [ "MAP1_TEXTURE_COORD_1", "CONTEXT_BOOL(Eval.Map1TextureCoord1), NO_EXTRA" ],
  471.   [ "MAP1_TEXTURE_COORD_2", "CONTEXT_BOOL(Eval.Map1TextureCoord2), NO_EXTRA" ],
  472.   [ "MAP1_TEXTURE_COORD_3", "CONTEXT_BOOL(Eval.Map1TextureCoord3), NO_EXTRA" ],
  473.   [ "MAP1_TEXTURE_COORD_4", "CONTEXT_BOOL(Eval.Map1TextureCoord4), NO_EXTRA" ],
  474.   [ "MAP1_VERTEX_3", "CONTEXT_BOOL(Eval.Map1Vertex3), NO_EXTRA" ],
  475.   [ "MAP1_VERTEX_4", "CONTEXT_BOOL(Eval.Map1Vertex4), NO_EXTRA" ],
  476.   [ "MAP2_COLOR_4", "CONTEXT_BOOL(Eval.Map2Color4), NO_EXTRA" ],
  477.   [ "MAP2_GRID_DOMAIN", "LOC_CUSTOM, TYPE_FLOAT_4, 0, NO_EXTRA" ],
  478.   [ "MAP2_GRID_SEGMENTS", "CONTEXT_INT2(Eval.MapGrid2un), NO_EXTRA" ],
  479.   [ "MAP2_INDEX", "CONTEXT_BOOL(Eval.Map2Index), NO_EXTRA" ],
  480.   [ "MAP2_NORMAL", "CONTEXT_BOOL(Eval.Map2Normal), NO_EXTRA" ],
  481.   [ "MAP2_TEXTURE_COORD_1", "CONTEXT_BOOL(Eval.Map2TextureCoord1), NO_EXTRA" ],
  482.   [ "MAP2_TEXTURE_COORD_2", "CONTEXT_BOOL(Eval.Map2TextureCoord2), NO_EXTRA" ],
  483.   [ "MAP2_TEXTURE_COORD_3", "CONTEXT_BOOL(Eval.Map2TextureCoord3), NO_EXTRA" ],
  484.   [ "MAP2_TEXTURE_COORD_4", "CONTEXT_BOOL(Eval.Map2TextureCoord4), NO_EXTRA" ],
  485.   [ "MAP2_VERTEX_3", "CONTEXT_BOOL(Eval.Map2Vertex3), NO_EXTRA" ],
  486.   [ "MAP2_VERTEX_4", "CONTEXT_BOOL(Eval.Map2Vertex4), NO_EXTRA" ],
  487.   [ "MAP_COLOR", "CONTEXT_BOOL(Pixel.MapColorFlag), NO_EXTRA" ],
  488.   [ "MAP_STENCIL", "CONTEXT_BOOL(Pixel.MapStencilFlag), NO_EXTRA" ],
  489.   [ "MAX_ATTRIB_STACK_DEPTH", "CONST(MAX_ATTRIB_STACK_DEPTH), NO_EXTRA" ],
  490.   [ "MAX_CLIENT_ATTRIB_STACK_DEPTH", "CONST(MAX_CLIENT_ATTRIB_STACK_DEPTH), NO_EXTRA" ],
  491.   [ "MAX_EVAL_ORDER", "CONST(MAX_EVAL_ORDER), NO_EXTRA" ],
  492.   [ "MAX_LIST_NESTING", "CONST(MAX_LIST_NESTING), NO_EXTRA" ],
  493.   [ "MAX_NAME_STACK_DEPTH", "CONST(MAX_NAME_STACK_DEPTH), NO_EXTRA" ],
  494.   [ "MAX_PIXEL_MAP_TABLE", "CONST(MAX_PIXEL_MAP_TABLE), NO_EXTRA" ],
  495.   [ "MAX_UNIFORM_LOCATIONS", "CONTEXT_INT(Const.MaxUserAssignableUniformLocations), extra_ARB_explicit_uniform_location" ],
  496.   [ "NAME_STACK_DEPTH", "CONTEXT_INT(Select.NameStackDepth), NO_EXTRA" ],
  497.   [ "PACK_LSB_FIRST", "CONTEXT_BOOL(Pack.LsbFirst), NO_EXTRA" ],
  498.   [ "PACK_SWAP_BYTES", "CONTEXT_BOOL(Pack.SwapBytes), NO_EXTRA" ],
  499.   [ "PACK_INVERT_MESA", "CONTEXT_BOOL(Pack.Invert), NO_EXTRA" ],
  500.   [ "PIXEL_MAP_A_TO_A_SIZE", "CONTEXT_INT(PixelMaps.AtoA.Size), NO_EXTRA" ],
  501.   [ "PIXEL_MAP_B_TO_B_SIZE", "CONTEXT_INT(PixelMaps.BtoB.Size), NO_EXTRA" ],
  502.   [ "PIXEL_MAP_G_TO_G_SIZE", "CONTEXT_INT(PixelMaps.GtoG.Size), NO_EXTRA" ],
  503.   [ "PIXEL_MAP_I_TO_A_SIZE", "CONTEXT_INT(PixelMaps.ItoA.Size), NO_EXTRA" ],
  504.   [ "PIXEL_MAP_I_TO_B_SIZE", "CONTEXT_INT(PixelMaps.ItoB.Size), NO_EXTRA" ],
  505.   [ "PIXEL_MAP_I_TO_G_SIZE", "CONTEXT_INT(PixelMaps.ItoG.Size), NO_EXTRA" ],
  506.   [ "PIXEL_MAP_I_TO_I_SIZE", "CONTEXT_INT(PixelMaps.ItoI.Size), NO_EXTRA" ],
  507.   [ "PIXEL_MAP_I_TO_R_SIZE", "CONTEXT_INT(PixelMaps.ItoR.Size), NO_EXTRA" ],
  508.   [ "PIXEL_MAP_R_TO_R_SIZE", "CONTEXT_INT(PixelMaps.RtoR.Size), NO_EXTRA" ],
  509.   [ "PIXEL_MAP_S_TO_S_SIZE", "CONTEXT_INT(PixelMaps.StoS.Size), NO_EXTRA" ],
  510.   [ "POINT_SIZE_GRANULARITY", "CONTEXT_FLOAT(Const.PointSizeGranularity), NO_EXTRA" ],
  511.   [ "POLYGON_MODE", "CONTEXT_ENUM2(Polygon.FrontMode), NO_EXTRA" ],
  512.   [ "POLYGON_OFFSET_BIAS_EXT", "CONTEXT_FLOAT(Polygon.OffsetUnits), NO_EXTRA" ],
  513.   [ "POLYGON_OFFSET_POINT", "CONTEXT_BOOL(Polygon.OffsetPoint), NO_EXTRA" ],
  514.   [ "POLYGON_OFFSET_LINE", "CONTEXT_BOOL(Polygon.OffsetLine), NO_EXTRA" ],
  515.   [ "POLYGON_SMOOTH", "CONTEXT_BOOL(Polygon.SmoothFlag), NO_EXTRA" ],
  516.   [ "POLYGON_SMOOTH_HINT", "CONTEXT_ENUM(Hint.PolygonSmooth), NO_EXTRA" ],
  517.   [ "POLYGON_STIPPLE", "CONTEXT_BOOL(Polygon.StippleFlag), NO_EXTRA" ],
  518.   [ "RED_BIAS", "CONTEXT_FLOAT(Pixel.RedBias), NO_EXTRA" ],
  519.   [ "RED_SCALE", "CONTEXT_FLOAT(Pixel.RedScale), NO_EXTRA" ],
  520.   [ "RENDER_MODE", "CONTEXT_ENUM(RenderMode), NO_EXTRA" ],
  521.   [ "RGBA_MODE", "CONST(1), NO_EXTRA" ],
  522.   [ "SELECTION_BUFFER_SIZE", "CONTEXT_INT(Select.BufferSize), NO_EXTRA" ],
  523.   [ "STEREO", "BUFFER_INT(Visual.stereoMode), NO_EXTRA" ],
  524.   [ "TEXTURE_1D", "LOC_CUSTOM, TYPE_BOOLEAN, NO_OFFSET, NO_EXTRA" ],
  525.   [ "TEXTURE_3D", "LOC_CUSTOM, TYPE_BOOLEAN, NO_OFFSET, NO_EXTRA" ],
  526.   [ "TEXTURE_BINDING_1D", "LOC_CUSTOM, TYPE_INT, TEXTURE_1D_INDEX, NO_EXTRA" ],
  527.   [ "TEXTURE_BINDING_1D_ARRAY", "LOC_CUSTOM, TYPE_INT, TEXTURE_1D_ARRAY_INDEX, extra_EXT_texture_array" ],
  528.   [ "TEXTURE_GEN_S", "LOC_TEXUNIT, TYPE_BIT_0, offsetof(struct gl_texture_unit, TexGenEnabled), NO_EXTRA" ],
  529.   [ "TEXTURE_GEN_T", "LOC_TEXUNIT, TYPE_BIT_1, offsetof(struct gl_texture_unit, TexGenEnabled), NO_EXTRA" ],
  530.   [ "TEXTURE_GEN_R", "LOC_TEXUNIT, TYPE_BIT_2, offsetof(struct gl_texture_unit, TexGenEnabled), NO_EXTRA" ],
  531.   [ "TEXTURE_GEN_Q", "LOC_TEXUNIT, TYPE_BIT_3, offsetof(struct gl_texture_unit, TexGenEnabled), NO_EXTRA" ],
  532.   [ "UNPACK_LSB_FIRST", "CONTEXT_BOOL(Unpack.LsbFirst), NO_EXTRA" ],
  533.   [ "UNPACK_SWAP_BYTES", "CONTEXT_BOOL(Unpack.SwapBytes), NO_EXTRA" ],
  534.   [ "ZOOM_X", "CONTEXT_FLOAT(Pixel.ZoomX), NO_EXTRA" ],
  535.   [ "ZOOM_Y", "CONTEXT_FLOAT(Pixel.ZoomY), NO_EXTRA" ],
  536.  
  537. # Vertex arrays
  538.   [ "VERTEX_ARRAY_COUNT_EXT", "CONST(0), NO_EXTRA" ],
  539.   [ "NORMAL_ARRAY_COUNT_EXT", "CONST(0), NO_EXTRA" ],
  540.   [ "COLOR_ARRAY_COUNT_EXT", "CONST(0), NO_EXTRA" ],
  541.   [ "INDEX_ARRAY", "ARRAY_BOOL(VertexAttrib[VERT_ATTRIB_COLOR_INDEX].Enabled), NO_EXTRA" ],
  542.   [ "INDEX_ARRAY_TYPE", "ARRAY_ENUM(VertexAttrib[VERT_ATTRIB_COLOR_INDEX].Type), NO_EXTRA" ],
  543.   [ "INDEX_ARRAY_STRIDE", "ARRAY_INT(VertexAttrib[VERT_ATTRIB_COLOR_INDEX].Stride), NO_EXTRA" ],
  544.   [ "INDEX_ARRAY_COUNT_EXT", "CONST(0), NO_EXTRA" ],
  545.   [ "TEXTURE_COORD_ARRAY_COUNT_EXT", "CONST(0), NO_EXTRA" ],
  546.   [ "EDGE_FLAG_ARRAY", "ARRAY_BOOL(VertexAttrib[VERT_ATTRIB_EDGEFLAG].Enabled), NO_EXTRA" ],
  547.   [ "EDGE_FLAG_ARRAY_STRIDE", "ARRAY_INT(VertexAttrib[VERT_ATTRIB_EDGEFLAG].Stride), NO_EXTRA" ],
  548.   [ "EDGE_FLAG_ARRAY_COUNT_EXT", "CONST(0), NO_EXTRA" ],
  549.  
  550. # GL_ARB_texture_compression
  551.   [ "TEXTURE_COMPRESSION_HINT_ARB", "CONTEXT_INT(Hint.TextureCompression), NO_EXTRA" ],
  552.  
  553. # GL_EXT_compiled_vertex_array
  554.   [ "ARRAY_ELEMENT_LOCK_FIRST_EXT", "CONTEXT_INT(Array.LockFirst), NO_EXTRA" ],
  555.   [ "ARRAY_ELEMENT_LOCK_COUNT_EXT", "CONTEXT_INT(Array.LockCount), NO_EXTRA" ],
  556.  
  557. # GL_ARB_compressed_texture_pixel_storage
  558.   [ "UNPACK_COMPRESSED_BLOCK_WIDTH", "CONTEXT_INT(Unpack.CompressedBlockWidth), NO_EXTRA" ],
  559.   [ "UNPACK_COMPRESSED_BLOCK_HEIGHT", "CONTEXT_INT(Unpack.CompressedBlockHeight), NO_EXTRA" ],
  560.   [ "UNPACK_COMPRESSED_BLOCK_DEPTH", "CONTEXT_INT(Unpack.CompressedBlockDepth), NO_EXTRA" ],
  561.   [ "UNPACK_COMPRESSED_BLOCK_SIZE", "CONTEXT_INT(Unpack.CompressedBlockSize), NO_EXTRA" ],
  562.   [ "PACK_COMPRESSED_BLOCK_WIDTH", "CONTEXT_INT(Pack.CompressedBlockWidth), NO_EXTRA" ],
  563.   [ "PACK_COMPRESSED_BLOCK_HEIGHT", "CONTEXT_INT(Pack.CompressedBlockHeight), NO_EXTRA" ],
  564.   [ "PACK_COMPRESSED_BLOCK_DEPTH", "CONTEXT_INT(Pack.CompressedBlockDepth), NO_EXTRA" ],
  565.   [ "PACK_COMPRESSED_BLOCK_SIZE", "CONTEXT_INT(Pack.CompressedBlockSize), NO_EXTRA" ],
  566.  
  567. # GL_ARB_transpose_matrix
  568.   [ "TRANSPOSE_MODELVIEW_MATRIX_ARB", "CONTEXT_MATRIX_T(ModelviewMatrixStack), NO_EXTRA" ],
  569.   [ "TRANSPOSE_PROJECTION_MATRIX_ARB", "CONTEXT_MATRIX_T(ProjectionMatrixStack.Top), NO_EXTRA" ],
  570.   [ "TRANSPOSE_TEXTURE_MATRIX_ARB", "CONTEXT_MATRIX_T(TextureMatrixStack), NO_EXTRA" ],
  571.  
  572. # GL_EXT_secondary_color
  573.   [ "COLOR_SUM", "CONTEXT_BOOL(Fog.ColorSumEnabled), NO_EXTRA" ],
  574.   [ "CURRENT_SECONDARY_COLOR", "CONTEXT_FIELD(Current.Attrib[VERT_ATTRIB_COLOR1][0], TYPE_FLOATN_4), extra_flush_current" ],
  575.   [ "SECONDARY_COLOR_ARRAY", "ARRAY_BOOL(VertexAttrib[VERT_ATTRIB_COLOR1].Enabled), NO_EXTRA" ],
  576.   [ "SECONDARY_COLOR_ARRAY_TYPE", "ARRAY_ENUM(VertexAttrib[VERT_ATTRIB_COLOR1].Type), NO_EXTRA" ],
  577.   [ "SECONDARY_COLOR_ARRAY_STRIDE", "ARRAY_INT(VertexAttrib[VERT_ATTRIB_COLOR1].Stride), NO_EXTRA" ],
  578.   [ "SECONDARY_COLOR_ARRAY_SIZE", "LOC_CUSTOM, TYPE_INT, 0, NO_EXTRA" ],
  579.  
  580. # GL_EXT_fog_coord
  581.   [ "CURRENT_FOG_COORDINATE", "CONTEXT_FLOAT(Current.Attrib[VERT_ATTRIB_FOG][0]), extra_flush_current" ],
  582.   [ "FOG_COORDINATE_ARRAY", "ARRAY_BOOL(VertexAttrib[VERT_ATTRIB_FOG].Enabled), NO_EXTRA" ],
  583.   [ "FOG_COORDINATE_ARRAY_TYPE", "ARRAY_ENUM(VertexAttrib[VERT_ATTRIB_FOG].Type), NO_EXTRA" ],
  584.   [ "FOG_COORDINATE_ARRAY_STRIDE", "ARRAY_INT(VertexAttrib[VERT_ATTRIB_FOG].Stride), NO_EXTRA" ],
  585.   [ "FOG_COORDINATE_SOURCE", "CONTEXT_ENUM(Fog.FogCoordinateSource), NO_EXTRA" ],
  586.  
  587. # GL_NV_fog_distance
  588.   [ "FOG_DISTANCE_MODE_NV", "CONTEXT_ENUM(Fog.FogDistanceMode), extra_NV_fog_distance" ],
  589.  
  590. # GL_IBM_rasterpos_clip
  591.   [ "RASTER_POSITION_UNCLIPPED_IBM", "CONTEXT_BOOL(Transform.RasterPositionUnclipped), NO_EXTRA" ],
  592.  
  593. # GL_NV_point_sprite
  594.   [ "POINT_SPRITE_R_MODE_NV", "CONTEXT_ENUM(Point.SpriteRMode), extra_NV_point_sprite" ],
  595.   [ "POINT_SPRITE_COORD_ORIGIN", "CONTEXT_ENUM(Point.SpriteOrigin), extra_NV_point_sprite_ARB_point_sprite" ],
  596.  
  597. # GL_NV_texture_rectangle
  598.   [ "TEXTURE_RECTANGLE_NV", "LOC_CUSTOM, TYPE_BOOLEAN, 0, extra_NV_texture_rectangle" ],
  599.   [ "TEXTURE_BINDING_RECTANGLE_NV", "LOC_CUSTOM, TYPE_INT, TEXTURE_RECT_INDEX, extra_NV_texture_rectangle" ],
  600.   [ "MAX_RECTANGLE_TEXTURE_SIZE_NV", "CONTEXT_INT(Const.MaxTextureRectSize), extra_NV_texture_rectangle" ],
  601.  
  602. # GL_EXT_stencil_two_side
  603.   [ "STENCIL_TEST_TWO_SIDE_EXT", "CONTEXT_BOOL(Stencil.TestTwoSide), extra_EXT_stencil_two_side" ],
  604.   [ "ACTIVE_STENCIL_FACE_EXT", "LOC_CUSTOM, TYPE_ENUM, NO_OFFSET, NO_EXTRA" ],
  605.  
  606. # GL_NV_light_max_exponent
  607.   [ "MAX_SHININESS_NV", "CONTEXT_FLOAT(Const.MaxShininess), NO_EXTRA" ],
  608.   [ "MAX_SPOT_EXPONENT_NV", "CONTEXT_FLOAT(Const.MaxSpotExponent), NO_EXTRA" ],
  609.  
  610. # GL_NV_primitive_restart
  611.   [ "PRIMITIVE_RESTART_NV", "CONTEXT_BOOL(Array.PrimitiveRestart), extra_NV_primitive_restart" ],
  612.   [ "PRIMITIVE_RESTART_INDEX_NV", "CONTEXT_INT(Array.RestartIndex), extra_NV_primitive_restart" ],
  613.  
  614. # GL_ARB_vertex_buffer_object
  615.   [ "INDEX_ARRAY_BUFFER_BINDING_ARB", "LOC_CUSTOM, TYPE_INT, offsetof(struct gl_vertex_array_object, VertexBinding[VERT_ATTRIB_COLOR_INDEX].BufferObj), NO_EXTRA" ],
  616.   [ "EDGE_FLAG_ARRAY_BUFFER_BINDING_ARB", "LOC_CUSTOM, TYPE_INT, offsetof(struct gl_vertex_array_object, VertexBinding[VERT_ATTRIB_EDGEFLAG].BufferObj), NO_EXTRA" ],
  617.   [ "SECONDARY_COLOR_ARRAY_BUFFER_BINDING_ARB", "LOC_CUSTOM, TYPE_INT, offsetof(struct gl_vertex_array_object, VertexBinding[VERT_ATTRIB_COLOR1].BufferObj), NO_EXTRA" ],
  618.   [ "FOG_COORDINATE_ARRAY_BUFFER_BINDING_ARB", "LOC_CUSTOM, TYPE_INT, offsetof(struct gl_vertex_array_object, VertexBinding[VERT_ATTRIB_FOG].BufferObj), NO_EXTRA" ],
  619.  
  620. # GL_ARB_vertex_program
  621. # == GL_VERTEX_PROGRAM_NV
  622.   [ "VERTEX_PROGRAM_ARB", "CONTEXT_BOOL(VertexProgram.Enabled), extra_ARB_vertex_program" ],
  623. # == GL_VERTEX_PROGRAM_POINT_SIZE_NV
  624.   [ "VERTEX_PROGRAM_POINT_SIZE_ARB", "CONTEXT_BOOL(VertexProgram.PointSizeEnabled), extra_ARB_vertex_program" ],
  625. # == GL_VERTEX_PROGRAM_TWO_SIDE_NV
  626.   [ "VERTEX_PROGRAM_TWO_SIDE_ARB", "CONTEXT_BOOL(VertexProgram.TwoSideEnabled), extra_ARB_vertex_program" ],
  627. # == GL_MAX_TRACK_MATRIX_STACK_DEPTH_NV
  628.   [ "MAX_PROGRAM_MATRIX_STACK_DEPTH_ARB", "CONTEXT_INT(Const.MaxProgramMatrixStackDepth), extra_ARB_vertex_program_ARB_fragment_program" ],
  629. # == GL_MAX_TRACK_MATRICES_NV
  630.   [ "MAX_PROGRAM_MATRICES_ARB", "CONTEXT_INT(Const.MaxProgramMatrices), extra_ARB_vertex_program_ARB_fragment_program" ],
  631. # == GL_CURRENT_MATRIX_STACK_DEPTH_NV
  632.   [ "CURRENT_MATRIX_STACK_DEPTH_ARB", "LOC_CUSTOM, TYPE_INT, 0, extra_ARB_vertex_program_ARB_fragment_program" ],
  633. # == GL_CURRENT_MATRIX_NV
  634.   [ "CURRENT_MATRIX_ARB", "LOC_CUSTOM, TYPE_MATRIX, 0, extra_ARB_vertex_program_ARB_fragment_program" ],
  635. # == GL_CURRENT_MATRIX_NV
  636.   [ "TRANSPOSE_CURRENT_MATRIX_ARB", "LOC_CUSTOM, TYPE_MATRIX_T, 0, extra_ARB_vertex_program_ARB_fragment_program" ],
  637. # == GL_PROGRAM_ERROR_POSITION_NV
  638.   [ "PROGRAM_ERROR_POSITION_ARB", "CONTEXT_INT(Program.ErrorPos), extra_ARB_vertex_program_ARB_fragment_program" ],
  639.  
  640. # GL_ARB_fragment_program
  641.   [ "FRAGMENT_PROGRAM_ARB", "CONTEXT_BOOL(FragmentProgram.Enabled), extra_ARB_fragment_program" ],
  642.  
  643. # GL_EXT_packed_float
  644.   [ "RGBA_SIGNED_COMPONENTS_EXT", "LOC_CUSTOM, TYPE_INT_4, 0, extra_EXT_packed_float" ],
  645.  
  646. # GL_EXT_depth_bounds_test
  647.   [ "DEPTH_BOUNDS_TEST_EXT", "CONTEXT_BOOL(Depth.BoundsTest), extra_EXT_depth_bounds_test" ],
  648.   [ "DEPTH_BOUNDS_EXT", "CONTEXT_FLOAT2(Depth.BoundsMin), extra_EXT_depth_bounds_test" ],
  649.  
  650. # GL_ARB_depth_clamp
  651.   [ "DEPTH_CLAMP", "CONTEXT_BOOL(Transform.DepthClamp), extra_ARB_depth_clamp" ],
  652.  
  653. # GL_ATI_fragment_shader
  654.   [ "NUM_FRAGMENT_REGISTERS_ATI", "CONST(6), extra_ATI_fragment_shader" ],
  655.   [ "NUM_FRAGMENT_CONSTANTS_ATI", "CONST(8), extra_ATI_fragment_shader" ],
  656.   [ "NUM_PASSES_ATI", "CONST(2), extra_ATI_fragment_shader" ],
  657.   [ "NUM_INSTRUCTIONS_PER_PASS_ATI", "CONST(8), extra_ATI_fragment_shader" ],
  658.   [ "NUM_INSTRUCTIONS_TOTAL_ATI", "CONST(16), extra_ATI_fragment_shader" ],
  659.   [ "COLOR_ALPHA_PAIRING_ATI", "CONST(GL_TRUE), extra_ATI_fragment_shader" ],
  660.   [ "NUM_LOOPBACK_COMPONENTS_ATI", "CONST(3), extra_ATI_fragment_shader" ],
  661.   [ "NUM_INPUT_INTERPOLATOR_COMPONENTS_ATI", "CONST(3), extra_ATI_fragment_shader" ],
  662.  
  663. # GL_EXT_provoking_vertex
  664.   [ "PROVOKING_VERTEX_EXT", "CONTEXT_ENUM(Light.ProvokingVertex), extra_EXT_provoking_vertex" ],
  665.   [ "QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION_EXT", "CONTEXT_BOOL(Const.QuadsFollowProvokingVertexConvention), extra_EXT_provoking_vertex" ],
  666.  
  667. # GL_ARB_seamless_cube_map
  668.   [ "TEXTURE_CUBE_MAP_SEAMLESS", "CONTEXT_BOOL(Texture.CubeMapSeamless), extra_ARB_seamless_cube_map" ],
  669.  
  670. # GL_EXT_texture_integer
  671.   [ "RGBA_INTEGER_MODE_EXT", "BUFFER_BOOL(_IntegerColor), extra_EXT_texture_integer_and_new_buffers" ],
  672.  
  673. # GL_ARB_transform_feedback3
  674.   [ "MAX_TRANSFORM_FEEDBACK_BUFFERS", "CONTEXT_INT(Const.MaxTransformFeedbackBuffers), extra_ARB_transform_feedback3" ],
  675.   [ "MAX_VERTEX_STREAMS", "CONTEXT_INT(Const.MaxVertexStreams), extra_ARB_transform_feedback3_ARB_gpu_shader5" ],
  676.  
  677. # GL_ARB_geometry_shader4
  678.   [ "MAX_GEOMETRY_TEXTURE_IMAGE_UNITS_ARB", "CONTEXT_INT(Const.Program[MESA_SHADER_GEOMETRY].MaxTextureImageUnits), extra_gl32_ARB_geometry_shader4" ],
  679.   [ "MAX_GEOMETRY_OUTPUT_VERTICES_ARB", "CONTEXT_INT(Const.MaxGeometryOutputVertices), extra_gl32_ARB_geometry_shader4" ],
  680.   [ "MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS_ARB", "CONTEXT_INT(Const.MaxGeometryTotalOutputComponents), extra_gl32_ARB_geometry_shader4" ],
  681.   [ "MAX_GEOMETRY_UNIFORM_COMPONENTS_ARB", "CONTEXT_INT(Const.Program[MESA_SHADER_GEOMETRY].MaxUniformComponents), extra_gl32_ARB_geometry_shader4" ],
  682.   [ "MAX_GEOMETRY_VARYING_COMPONENTS_ARB", "CONTEXT_INT(Const.Program[MESA_SHADER_GEOMETRY].MaxOutputComponents), extra_ARB_geometry_shader4" ],
  683.   [ "MAX_VERTEX_VARYING_COMPONENTS_ARB", "CONTEXT_INT(Const.Program[MESA_SHADER_VERTEX].MaxOutputComponents), extra_ARB_geometry_shader4" ],
  684.  
  685. # GL_ARB_color_buffer_float
  686.   [ "RGBA_FLOAT_MODE_ARB", "BUFFER_FIELD(Visual.floatMode, TYPE_BOOLEAN), extra_core_ARB_color_buffer_float_and_new_buffers" ],
  687.  
  688. # GL_ARB_texture_buffer_object
  689.   [ "MAX_TEXTURE_BUFFER_SIZE_ARB", "CONTEXT_INT(Const.MaxTextureBufferSize), extra_texture_buffer_object" ],
  690.   [ "TEXTURE_BINDING_BUFFER_ARB", "LOC_CUSTOM, TYPE_INT, 0, extra_texture_buffer_object" ],
  691.   [ "TEXTURE_BUFFER_DATA_STORE_BINDING_ARB", "LOC_CUSTOM, TYPE_INT, TEXTURE_BUFFER_INDEX, extra_texture_buffer_object" ],
  692.   [ "TEXTURE_BUFFER_FORMAT_ARB", "LOC_CUSTOM, TYPE_INT, 0, extra_texture_buffer_object" ],
  693.   [ "TEXTURE_BUFFER_ARB", "LOC_CUSTOM, TYPE_INT, 0, extra_texture_buffer_object" ],
  694.  
  695. # GL_ARB_texture_multisample / GL 3.2
  696.   [ "TEXTURE_BINDING_2D_MULTISAMPLE", "LOC_CUSTOM, TYPE_INT, TEXTURE_2D_MULTISAMPLE_INDEX, extra_ARB_texture_multisample" ],
  697.   [ "TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY", "LOC_CUSTOM, TYPE_INT, TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX, extra_ARB_texture_multisample" ],
  698.   [ "MAX_COLOR_TEXTURE_SAMPLES", "CONTEXT_INT(Const.MaxColorTextureSamples), extra_ARB_texture_multisample" ],
  699.   [ "MAX_DEPTH_TEXTURE_SAMPLES", "CONTEXT_INT(Const.MaxDepthTextureSamples), extra_ARB_texture_multisample" ],
  700.   [ "MAX_INTEGER_SAMPLES", "CONTEXT_INT(Const.MaxIntegerSamples), extra_ARB_texture_multisample" ],
  701.   [ "SAMPLE_MASK", "CONTEXT_BOOL(Multisample.SampleMask), extra_ARB_texture_multisample" ],
  702.   [ "MAX_SAMPLE_MASK_WORDS", "CONST(1), extra_ARB_texture_multisample" ],
  703.  
  704. # GL 3.0
  705.   [ "CONTEXT_FLAGS", "CONTEXT_INT(Const.ContextFlags), extra_version_30" ],
  706.  
  707. # GL3.0 / GL_EXT_framebuffer_sRGB
  708.   [ "FRAMEBUFFER_SRGB_EXT", "CONTEXT_BOOL(Color.sRGBEnabled), extra_EXT_framebuffer_sRGB" ],
  709.   [ "FRAMEBUFFER_SRGB_CAPABLE_EXT", "BUFFER_INT(Visual.sRGBCapable), extra_EXT_framebuffer_sRGB_and_new_buffers" ],
  710.  
  711. # GL 3.1
  712. # NOTE: different enum values for GL_PRIMITIVE_RESTART_NV
  713. # vs. GL_PRIMITIVE_RESTART!
  714.   [ "PRIMITIVE_RESTART", "CONTEXT_BOOL(Array.PrimitiveRestart), extra_version_31" ],
  715.   [ "PRIMITIVE_RESTART_INDEX", "CONTEXT_INT(Array.RestartIndex), extra_version_31" ],
  716.  
  717. # GL 3.2
  718.   [ "CONTEXT_PROFILE_MASK", "CONTEXT_INT(Const.ProfileMask), extra_version_32" ],
  719.   [ "MAX_GEOMETRY_INPUT_COMPONENTS", "CONTEXT_INT(Const.Program[MESA_SHADER_GEOMETRY].MaxInputComponents), extra_version_32" ],
  720.   [ "MAX_GEOMETRY_OUTPUT_COMPONENTS", "CONTEXT_INT(Const.Program[MESA_SHADER_GEOMETRY].MaxOutputComponents), extra_version_32" ],
  721.  
  722. # GL 4.4
  723.   [ "MAX_VERTEX_ATTRIB_STRIDE", "CONTEXT_ENUM(Const.MaxVertexAttribStride), NO_EXTRA" ],
  724.  
  725. # GL_ARB_robustness
  726.   [ "RESET_NOTIFICATION_STRATEGY_ARB", "CONTEXT_ENUM(Const.ResetStrategy), NO_EXTRA" ],
  727.  
  728. # GL_KHR_debug (GL 4.3)/ GL_ARB_debug_output
  729.   [ "DEBUG_LOGGED_MESSAGES", "LOC_CUSTOM, TYPE_INT, 0, NO_EXTRA" ],
  730.   [ "DEBUG_NEXT_LOGGED_MESSAGE_LENGTH", "LOC_CUSTOM, TYPE_INT, 0, NO_EXTRA" ],
  731.   [ "MAX_DEBUG_LOGGED_MESSAGES", "CONST(MAX_DEBUG_LOGGED_MESSAGES), NO_EXTRA" ],
  732.   [ "MAX_DEBUG_MESSAGE_LENGTH", "CONST(MAX_DEBUG_MESSAGE_LENGTH), NO_EXTRA" ],
  733.   [ "MAX_LABEL_LENGTH", "CONST(MAX_LABEL_LENGTH), NO_EXTRA" ],
  734.   [ "MAX_DEBUG_GROUP_STACK_DEPTH", "CONST(MAX_DEBUG_GROUP_STACK_DEPTH), NO_EXTRA" ],
  735.   [ "DEBUG_GROUP_STACK_DEPTH", "LOC_CUSTOM, TYPE_INT, 0, NO_EXTRA" ],
  736.  
  737.   [ "MAX_DUAL_SOURCE_DRAW_BUFFERS", "CONTEXT_INT(Const.MaxDualSourceDrawBuffers), extra_ARB_blend_func_extended" ],
  738.  
  739. # GL_ARB_uniform_buffer_object
  740.   [ "MAX_GEOMETRY_UNIFORM_BLOCKS", "CONTEXT_INT(Const.Program[MESA_SHADER_GEOMETRY].MaxUniformBlocks), extra_ARB_uniform_buffer_object_and_geometry_shader" ],
  741.   [ "MAX_COMBINED_GEOMETRY_UNIFORM_COMPONENTS", "CONTEXT_INT(Const.Program[MESA_SHADER_GEOMETRY].MaxCombinedUniformComponents), extra_ARB_uniform_buffer_object_and_geometry_shader" ],
  742.  
  743. # GL_ARB_timer_query
  744.   [ "TIMESTAMP", "LOC_CUSTOM, TYPE_INT64, 0, extra_ARB_timer_query" ],
  745.  
  746. # GL_ARB_map_buffer_alignment
  747.   [ "MIN_MAP_BUFFER_ALIGNMENT", "CONTEXT_INT(Const.MinMapBufferAlignment), NO_EXTRA" ],
  748.  
  749. # GL_ARB_texture_cube_map_array
  750.   [ "TEXTURE_BINDING_CUBE_MAP_ARRAY_ARB", "LOC_CUSTOM, TYPE_INT, TEXTURE_CUBE_ARRAY_INDEX, extra_ARB_texture_cube_map_array" ],
  751.  
  752. # GL_ARB_texture_gather
  753.   [ "MIN_PROGRAM_TEXTURE_GATHER_OFFSET", "CONTEXT_INT(Const.MinProgramTextureGatherOffset), extra_ARB_texture_gather"],
  754.   [ "MAX_PROGRAM_TEXTURE_GATHER_OFFSET", "CONTEXT_INT(Const.MaxProgramTextureGatherOffset), extra_ARB_texture_gather"],
  755.   [ "MAX_PROGRAM_TEXTURE_GATHER_COMPONENTS_ARB", "CONTEXT_INT(Const.MaxProgramTextureGatherComponents), extra_ARB_texture_gather"],
  756.  
  757. # GL_ARB_separate_shader_objects
  758.   [ "PROGRAM_PIPELINE_BINDING", "LOC_CUSTOM, TYPE_INT, GL_PROGRAM_PIPELINE_BINDING, NO_EXTRA" ],
  759.  
  760. # GL_ARB_shader_atomic_counters
  761.   [ "ATOMIC_COUNTER_BUFFER_BINDING", "LOC_CUSTOM, TYPE_INT, 0, extra_ARB_shader_atomic_counters" ],
  762.   [ "MAX_ATOMIC_COUNTER_BUFFER_BINDINGS", "CONTEXT_INT(Const.MaxAtomicBufferBindings), extra_ARB_shader_atomic_counters" ],
  763.   [ "MAX_ATOMIC_COUNTER_BUFFER_SIZE", "CONTEXT_INT(Const.MaxAtomicBufferSize), extra_ARB_shader_atomic_counters" ],
  764.   [ "MAX_VERTEX_ATOMIC_COUNTER_BUFFERS", "CONTEXT_INT(Const.Program[MESA_SHADER_VERTEX].MaxAtomicBuffers), extra_ARB_shader_atomic_counters" ],
  765.   [ "MAX_VERTEX_ATOMIC_COUNTERS", "CONTEXT_INT(Const.Program[MESA_SHADER_VERTEX].MaxAtomicCounters), extra_ARB_shader_atomic_counters" ],
  766.   [ "MAX_FRAGMENT_ATOMIC_COUNTER_BUFFERS", "CONTEXT_INT(Const.Program[MESA_SHADER_FRAGMENT].MaxAtomicBuffers), extra_ARB_shader_atomic_counters" ],
  767.   [ "MAX_FRAGMENT_ATOMIC_COUNTERS", "CONTEXT_INT(Const.Program[MESA_SHADER_FRAGMENT].MaxAtomicCounters), extra_ARB_shader_atomic_counters" ],
  768.   [ "MAX_GEOMETRY_ATOMIC_COUNTER_BUFFERS", "CONTEXT_INT(Const.Program[MESA_SHADER_GEOMETRY].MaxAtomicBuffers), extra_ARB_shader_atomic_counters_and_geometry_shader" ],
  769.   [ "MAX_GEOMETRY_ATOMIC_COUNTERS", "CONTEXT_INT(Const.Program[MESA_SHADER_GEOMETRY].MaxAtomicCounters), extra_ARB_shader_atomic_counters_and_geometry_shader" ],
  770.   [ "MAX_COMBINED_ATOMIC_COUNTER_BUFFERS", "CONTEXT_INT(Const.MaxCombinedAtomicBuffers), extra_ARB_shader_atomic_counters" ],
  771.   [ "MAX_COMBINED_ATOMIC_COUNTERS", "CONTEXT_INT(Const.MaxCombinedAtomicCounters), extra_ARB_shader_atomic_counters" ],
  772.  
  773. # GL_ARB_vertex_attrib_binding
  774.   [ "MAX_VERTEX_ATTRIB_RELATIVE_OFFSET", "CONTEXT_ENUM(Const.MaxVertexAttribRelativeOffset), NO_EXTRA" ],
  775.   [ "MAX_VERTEX_ATTRIB_BINDINGS", "CONTEXT_ENUM(Const.MaxVertexAttribBindings), NO_EXTRA" ],
  776.  
  777. # GL_ARB_shader_image_load_store
  778.   [ "MAX_IMAGE_UNITS", "CONTEXT_INT(Const.MaxImageUnits), extra_ARB_shader_image_load_store"],
  779.   [ "MAX_COMBINED_IMAGE_UNITS_AND_FRAGMENT_OUTPUTS", "CONTEXT_INT(Const.MaxCombinedImageUnitsAndFragmentOutputs), extra_ARB_shader_image_load_store"],
  780.   [ "MAX_IMAGE_SAMPLES", "CONTEXT_INT(Const.MaxImageSamples), extra_ARB_shader_image_load_store"],
  781.   [ "MAX_VERTEX_IMAGE_UNIFORMS", "CONTEXT_INT(Const.Program[MESA_SHADER_VERTEX].MaxImageUniforms), extra_ARB_shader_image_load_store"],
  782.   [ "MAX_GEOMETRY_IMAGE_UNIFORMS", "CONTEXT_INT(Const.Program[MESA_SHADER_GEOMETRY].MaxImageUniforms), extra_ARB_shader_image_load_store_and_geometry_shader"],
  783.   [ "MAX_FRAGMENT_IMAGE_UNIFORMS", "CONTEXT_INT(Const.Program[MESA_SHADER_FRAGMENT].MaxImageUniforms), extra_ARB_shader_image_load_store"],
  784.   [ "MAX_COMBINED_IMAGE_UNIFORMS", "CONTEXT_INT(Const.MaxCombinedImageUniforms), extra_ARB_shader_image_load_store"],
  785.  
  786. # GL_ARB_compute_shader
  787.   [ "MAX_COMPUTE_WORK_GROUP_INVOCATIONS", "CONTEXT_INT(Const.MaxComputeWorkGroupInvocations), extra_ARB_compute_shader" ],
  788.   [ "MAX_COMPUTE_UNIFORM_BLOCKS", "CONST(MAX_COMPUTE_UNIFORM_BLOCKS), extra_ARB_compute_shader" ],
  789.   [ "MAX_COMPUTE_TEXTURE_IMAGE_UNITS", "CONST(MAX_COMPUTE_TEXTURE_IMAGE_UNITS), extra_ARB_compute_shader" ],
  790.   [ "MAX_COMPUTE_ATOMIC_COUNTER_BUFFERS", "CONST(MAX_COMPUTE_ATOMIC_COUNTER_BUFFERS), extra_ARB_compute_shader" ],
  791.   [ "MAX_COMPUTE_ATOMIC_COUNTERS", "CONST(MAX_COMPUTE_ATOMIC_COUNTERS), extra_ARB_compute_shader" ],
  792.   [ "MAX_COMPUTE_SHARED_MEMORY_SIZE", "CONST(MAX_COMPUTE_SHARED_MEMORY_SIZE), extra_ARB_compute_shader" ],
  793.   [ "MAX_COMPUTE_UNIFORM_COMPONENTS", "CONST(MAX_COMPUTE_UNIFORM_COMPONENTS), extra_ARB_compute_shader" ],
  794.   [ "MAX_COMPUTE_IMAGE_UNIFORMS", "CONST(MAX_COMPUTE_IMAGE_UNIFORMS), extra_ARB_compute_shader" ],
  795.  
  796. # GL_ARB_gpu_shader5
  797.   [ "MAX_GEOMETRY_SHADER_INVOCATIONS", "CONST(MAX_GEOMETRY_SHADER_INVOCATIONS), extra_ARB_gpu_shader5" ],
  798.   [ "MIN_FRAGMENT_INTERPOLATION_OFFSET", "CONTEXT_FLOAT(Const.MinFragmentInterpolationOffset), extra_ARB_gpu_shader5" ],
  799.   [ "MAX_FRAGMENT_INTERPOLATION_OFFSET", "CONTEXT_FLOAT(Const.MaxFragmentInterpolationOffset), extra_ARB_gpu_shader5" ],
  800.   [ "FRAGMENT_INTERPOLATION_OFFSET_BITS", "CONST(FRAGMENT_INTERPOLATION_OFFSET_BITS), extra_ARB_gpu_shader5" ],
  801. ]},
  802.  
  803. # Enums restricted to OpenGL Core profile
  804. { "apis": ["GL_CORE"], "params": [
  805. # GL_ARB_texture_buffer_range
  806.   [ "TEXTURE_BUFFER_OFFSET_ALIGNMENT", "CONTEXT_INT(Const.TextureBufferOffsetAlignment), extra_ARB_texture_buffer_range" ],
  807. # GL_ARB_draw_indirect
  808.   [ "DRAW_INDIRECT_BUFFER_BINDING", "LOC_CUSTOM, TYPE_INT, 0, extra_ARB_draw_indirect" ],
  809.  
  810. # GL_ARB_viewport_array
  811.   [ "MAX_VIEWPORTS", "CONTEXT_INT(Const.MaxViewports), extra_ARB_viewport_array" ],
  812.   [ "VIEWPORT_SUBPIXEL_BITS", "CONTEXT_INT(Const.ViewportSubpixelBits), extra_ARB_viewport_array" ],
  813.   [ "VIEWPORT_BOUNDS_RANGE", "CONTEXT_FLOAT2(Const.ViewportBounds), extra_ARB_viewport_array" ],
  814.   [ "LAYER_PROVOKING_VERTEX", "CONTEXT_ENUM(Light.ProvokingVertex), extra_ARB_viewport_array" ],
  815.   [ "VIEWPORT_INDEX_PROVOKING_VERTEX", "CONTEXT_ENUM(Light.ProvokingVertex), extra_ARB_viewport_array" ],
  816.  
  817. # GL_EXT_polygon_offset_clamp
  818.   [ "POLYGON_OFFSET_CLAMP_EXT", "CONTEXT_FLOAT(Polygon.OffsetClamp), extra_EXT_polygon_offset_clamp" ],
  819. ]}
  820.  
  821. ]
  822.