tor-browser

The Tor Browser
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webgl1.idl (33999B)


      1 // GENERATED CONTENT - DO NOT EDIT
      2 // Content was automatically extracted by Reffy into webref
      3 // (https://github.com/w3c/webref)
      4 // Source: WebGL Specification (https://registry.khronos.org/webgl/specs/latest/1.0/)
      5 
      6 typedef unsigned long  GLenum;
      7 typedef boolean        GLboolean;
      8 typedef unsigned long  GLbitfield;
      9 typedef byte           GLbyte;         /* 'byte' should be a signed 8 bit type. */
     10 typedef short          GLshort;
     11 typedef long           GLint;
     12 typedef long           GLsizei;
     13 typedef long long      GLintptr;
     14 typedef long long      GLsizeiptr;
     15 // Ideally the typedef below would use 'unsigned byte', but that doesn't currently exist in Web IDL.
     16 typedef octet          GLubyte;        /* 'octet' should be an unsigned 8 bit type. */
     17 typedef unsigned short GLushort;
     18 typedef unsigned long  GLuint;
     19 typedef unrestricted float GLfloat;
     20 typedef unrestricted float GLclampf;
     21 
     22 // The power preference settings are documented in the WebGLContextAttributes
     23 // section of the specification.
     24 enum WebGLPowerPreference { "default", "low-power", "high-performance" };
     25 
     26 dictionary WebGLContextAttributes {
     27    boolean alpha = true;
     28    boolean depth = true;
     29    boolean stencil = false;
     30    boolean antialias = true;
     31    boolean premultipliedAlpha = true;
     32    boolean preserveDrawingBuffer = false;
     33    WebGLPowerPreference powerPreference = "default";
     34    boolean failIfMajorPerformanceCaveat = false;
     35    boolean desynchronized = false;
     36 };
     37 
     38 [Exposed=(Window,Worker)]
     39 interface WebGLObject {
     40    attribute USVString label;
     41 };
     42 
     43 [Exposed=(Window,Worker)]
     44 interface WebGLBuffer : WebGLObject {
     45 };
     46 
     47 [Exposed=(Window,Worker)]
     48 interface WebGLFramebuffer : WebGLObject {
     49 };
     50 
     51 [Exposed=(Window,Worker)]
     52 interface WebGLProgram : WebGLObject {
     53 };
     54 
     55 [Exposed=(Window,Worker)]
     56 interface WebGLRenderbuffer : WebGLObject {
     57 };
     58 
     59 [Exposed=(Window,Worker)]
     60 interface WebGLShader : WebGLObject {
     61 };
     62 
     63 [Exposed=(Window,Worker)]
     64 interface WebGLTexture : WebGLObject {
     65 };
     66 
     67 [Exposed=(Window,Worker)]
     68 interface WebGLUniformLocation {
     69 };
     70 
     71 [Exposed=(Window,Worker)]
     72 interface WebGLActiveInfo {
     73    readonly attribute GLint size;
     74    readonly attribute GLenum type;
     75    readonly attribute DOMString name;
     76 };
     77 
     78 [Exposed=(Window,Worker)]
     79 interface WebGLShaderPrecisionFormat {
     80    readonly attribute GLint rangeMin;
     81    readonly attribute GLint rangeMax;
     82    readonly attribute GLint precision;
     83 };
     84 
     85 typedef (ImageBitmap or
     86         ImageData or
     87         HTMLImageElement or
     88         HTMLCanvasElement or
     89         HTMLVideoElement or
     90         OffscreenCanvas or
     91         VideoFrame) TexImageSource;
     92 
     93 typedef ([AllowShared] Float32Array or sequence<GLfloat>) Float32List;
     94 typedef ([AllowShared] Int32Array or sequence<GLint>) Int32List;
     95 
     96 interface mixin WebGLRenderingContextBase
     97 {
     98 
     99    /* ClearBufferMask */
    100    const GLenum DEPTH_BUFFER_BIT               = 0x00000100;
    101    const GLenum STENCIL_BUFFER_BIT             = 0x00000400;
    102    const GLenum COLOR_BUFFER_BIT               = 0x00004000;
    103 
    104    /* BeginMode */
    105    const GLenum POINTS                         = 0x0000;
    106    const GLenum LINES                          = 0x0001;
    107    const GLenum LINE_LOOP                      = 0x0002;
    108    const GLenum LINE_STRIP                     = 0x0003;
    109    const GLenum TRIANGLES                      = 0x0004;
    110    const GLenum TRIANGLE_STRIP                 = 0x0005;
    111    const GLenum TRIANGLE_FAN                   = 0x0006;
    112 
    113    /* AlphaFunction (not supported in ES20) */
    114    /*      NEVER */
    115    /*      LESS */
    116    /*      EQUAL */
    117    /*      LEQUAL */
    118    /*      GREATER */
    119    /*      NOTEQUAL */
    120    /*      GEQUAL */
    121    /*      ALWAYS */
    122 
    123    /* BlendingFactorDest */
    124    const GLenum ZERO                           = 0;
    125    const GLenum ONE                            = 1;
    126    const GLenum SRC_COLOR                      = 0x0300;
    127    const GLenum ONE_MINUS_SRC_COLOR            = 0x0301;
    128    const GLenum SRC_ALPHA                      = 0x0302;
    129    const GLenum ONE_MINUS_SRC_ALPHA            = 0x0303;
    130    const GLenum DST_ALPHA                      = 0x0304;
    131    const GLenum ONE_MINUS_DST_ALPHA            = 0x0305;
    132 
    133    /* BlendingFactorSrc */
    134    /*      ZERO */
    135    /*      ONE */
    136    const GLenum DST_COLOR                      = 0x0306;
    137    const GLenum ONE_MINUS_DST_COLOR            = 0x0307;
    138    const GLenum SRC_ALPHA_SATURATE             = 0x0308;
    139    /*      SRC_ALPHA */
    140    /*      ONE_MINUS_SRC_ALPHA */
    141    /*      DST_ALPHA */
    142    /*      ONE_MINUS_DST_ALPHA */
    143 
    144    /* BlendEquationSeparate */
    145    const GLenum FUNC_ADD                       = 0x8006;
    146    const GLenum BLEND_EQUATION                 = 0x8009;
    147    const GLenum BLEND_EQUATION_RGB             = 0x8009;   /* same as BLEND_EQUATION */
    148    const GLenum BLEND_EQUATION_ALPHA           = 0x883D;
    149 
    150    /* BlendSubtract */
    151    const GLenum FUNC_SUBTRACT                  = 0x800A;
    152    const GLenum FUNC_REVERSE_SUBTRACT          = 0x800B;
    153 
    154    /* Separate Blend Functions */
    155    const GLenum BLEND_DST_RGB                  = 0x80C8;
    156    const GLenum BLEND_SRC_RGB                  = 0x80C9;
    157    const GLenum BLEND_DST_ALPHA                = 0x80CA;
    158    const GLenum BLEND_SRC_ALPHA                = 0x80CB;
    159    const GLenum CONSTANT_COLOR                 = 0x8001;
    160    const GLenum ONE_MINUS_CONSTANT_COLOR       = 0x8002;
    161    const GLenum CONSTANT_ALPHA                 = 0x8003;
    162    const GLenum ONE_MINUS_CONSTANT_ALPHA       = 0x8004;
    163    const GLenum BLEND_COLOR                    = 0x8005;
    164 
    165    /* Buffer Objects */
    166    const GLenum ARRAY_BUFFER                   = 0x8892;
    167    const GLenum ELEMENT_ARRAY_BUFFER           = 0x8893;
    168    const GLenum ARRAY_BUFFER_BINDING           = 0x8894;
    169    const GLenum ELEMENT_ARRAY_BUFFER_BINDING   = 0x8895;
    170 
    171    const GLenum STREAM_DRAW                    = 0x88E0;
    172    const GLenum STATIC_DRAW                    = 0x88E4;
    173    const GLenum DYNAMIC_DRAW                   = 0x88E8;
    174 
    175    const GLenum BUFFER_SIZE                    = 0x8764;
    176    const GLenum BUFFER_USAGE                   = 0x8765;
    177 
    178    const GLenum CURRENT_VERTEX_ATTRIB          = 0x8626;
    179 
    180    /* CullFaceMode */
    181    const GLenum FRONT                          = 0x0404;
    182    const GLenum BACK                           = 0x0405;
    183    const GLenum FRONT_AND_BACK                 = 0x0408;
    184 
    185    /* DepthFunction */
    186    /*      NEVER */
    187    /*      LESS */
    188    /*      EQUAL */
    189    /*      LEQUAL */
    190    /*      GREATER */
    191    /*      NOTEQUAL */
    192    /*      GEQUAL */
    193    /*      ALWAYS */
    194 
    195    /* EnableCap */
    196    /* TEXTURE_2D */
    197    const GLenum CULL_FACE                      = 0x0B44;
    198    const GLenum BLEND                          = 0x0BE2;
    199    const GLenum DITHER                         = 0x0BD0;
    200    const GLenum STENCIL_TEST                   = 0x0B90;
    201    const GLenum DEPTH_TEST                     = 0x0B71;
    202    const GLenum SCISSOR_TEST                   = 0x0C11;
    203    const GLenum POLYGON_OFFSET_FILL            = 0x8037;
    204    const GLenum SAMPLE_ALPHA_TO_COVERAGE       = 0x809E;
    205    const GLenum SAMPLE_COVERAGE                = 0x80A0;
    206 
    207    /* ErrorCode */
    208    const GLenum NO_ERROR                       = 0;
    209    const GLenum INVALID_ENUM                   = 0x0500;
    210    const GLenum INVALID_VALUE                  = 0x0501;
    211    const GLenum INVALID_OPERATION              = 0x0502;
    212    const GLenum OUT_OF_MEMORY                  = 0x0505;
    213 
    214    /* FrontFaceDirection */
    215    const GLenum CW                             = 0x0900;
    216    const GLenum CCW                            = 0x0901;
    217 
    218    /* GetPName */
    219    const GLenum LINE_WIDTH                     = 0x0B21;
    220    const GLenum ALIASED_POINT_SIZE_RANGE       = 0x846D;
    221    const GLenum ALIASED_LINE_WIDTH_RANGE       = 0x846E;
    222    const GLenum CULL_FACE_MODE                 = 0x0B45;
    223    const GLenum FRONT_FACE                     = 0x0B46;
    224    const GLenum DEPTH_RANGE                    = 0x0B70;
    225    const GLenum DEPTH_WRITEMASK                = 0x0B72;
    226    const GLenum DEPTH_CLEAR_VALUE              = 0x0B73;
    227    const GLenum DEPTH_FUNC                     = 0x0B74;
    228    const GLenum STENCIL_CLEAR_VALUE            = 0x0B91;
    229    const GLenum STENCIL_FUNC                   = 0x0B92;
    230    const GLenum STENCIL_FAIL                   = 0x0B94;
    231    const GLenum STENCIL_PASS_DEPTH_FAIL        = 0x0B95;
    232    const GLenum STENCIL_PASS_DEPTH_PASS        = 0x0B96;
    233    const GLenum STENCIL_REF                    = 0x0B97;
    234    const GLenum STENCIL_VALUE_MASK             = 0x0B93;
    235    const GLenum STENCIL_WRITEMASK              = 0x0B98;
    236    const GLenum STENCIL_BACK_FUNC              = 0x8800;
    237    const GLenum STENCIL_BACK_FAIL              = 0x8801;
    238    const GLenum STENCIL_BACK_PASS_DEPTH_FAIL   = 0x8802;
    239    const GLenum STENCIL_BACK_PASS_DEPTH_PASS   = 0x8803;
    240    const GLenum STENCIL_BACK_REF               = 0x8CA3;
    241    const GLenum STENCIL_BACK_VALUE_MASK        = 0x8CA4;
    242    const GLenum STENCIL_BACK_WRITEMASK         = 0x8CA5;
    243    const GLenum VIEWPORT                       = 0x0BA2;
    244    const GLenum SCISSOR_BOX                    = 0x0C10;
    245    /*      SCISSOR_TEST */
    246    const GLenum COLOR_CLEAR_VALUE              = 0x0C22;
    247    const GLenum COLOR_WRITEMASK                = 0x0C23;
    248    const GLenum UNPACK_ALIGNMENT               = 0x0CF5;
    249    const GLenum PACK_ALIGNMENT                 = 0x0D05;
    250    const GLenum MAX_TEXTURE_SIZE               = 0x0D33;
    251    const GLenum MAX_VIEWPORT_DIMS              = 0x0D3A;
    252    const GLenum SUBPIXEL_BITS                  = 0x0D50;
    253    const GLenum RED_BITS                       = 0x0D52;
    254    const GLenum GREEN_BITS                     = 0x0D53;
    255    const GLenum BLUE_BITS                      = 0x0D54;
    256    const GLenum ALPHA_BITS                     = 0x0D55;
    257    const GLenum DEPTH_BITS                     = 0x0D56;
    258    const GLenum STENCIL_BITS                   = 0x0D57;
    259    const GLenum POLYGON_OFFSET_UNITS           = 0x2A00;
    260    /*      POLYGON_OFFSET_FILL */
    261    const GLenum POLYGON_OFFSET_FACTOR          = 0x8038;
    262    const GLenum TEXTURE_BINDING_2D             = 0x8069;
    263    const GLenum SAMPLE_BUFFERS                 = 0x80A8;
    264    const GLenum SAMPLES                        = 0x80A9;
    265    const GLenum SAMPLE_COVERAGE_VALUE          = 0x80AA;
    266    const GLenum SAMPLE_COVERAGE_INVERT         = 0x80AB;
    267 
    268    /* GetTextureParameter */
    269    /*      TEXTURE_MAG_FILTER */
    270    /*      TEXTURE_MIN_FILTER */
    271    /*      TEXTURE_WRAP_S */
    272    /*      TEXTURE_WRAP_T */
    273 
    274    const GLenum COMPRESSED_TEXTURE_FORMATS     = 0x86A3;
    275 
    276    /* HintMode */
    277    const GLenum DONT_CARE                      = 0x1100;
    278    const GLenum FASTEST                        = 0x1101;
    279    const GLenum NICEST                         = 0x1102;
    280 
    281    /* HintTarget */
    282    const GLenum GENERATE_MIPMAP_HINT            = 0x8192;
    283 
    284    /* DataType */
    285    const GLenum BYTE                           = 0x1400;
    286    const GLenum UNSIGNED_BYTE                  = 0x1401;
    287    const GLenum SHORT                          = 0x1402;
    288    const GLenum UNSIGNED_SHORT                 = 0x1403;
    289    const GLenum INT                            = 0x1404;
    290    const GLenum UNSIGNED_INT                   = 0x1405;
    291    const GLenum FLOAT                          = 0x1406;
    292 
    293    /* PixelFormat */
    294    const GLenum DEPTH_COMPONENT                = 0x1902;
    295    const GLenum ALPHA                          = 0x1906;
    296    const GLenum RGB                            = 0x1907;
    297    const GLenum RGBA                           = 0x1908;
    298    const GLenum LUMINANCE                      = 0x1909;
    299    const GLenum LUMINANCE_ALPHA                = 0x190A;
    300 
    301    /* PixelType */
    302    /*      UNSIGNED_BYTE */
    303    const GLenum UNSIGNED_SHORT_4_4_4_4         = 0x8033;
    304    const GLenum UNSIGNED_SHORT_5_5_5_1         = 0x8034;
    305    const GLenum UNSIGNED_SHORT_5_6_5           = 0x8363;
    306 
    307    /* Shaders */
    308    const GLenum FRAGMENT_SHADER                  = 0x8B30;
    309    const GLenum VERTEX_SHADER                    = 0x8B31;
    310    const GLenum MAX_VERTEX_ATTRIBS               = 0x8869;
    311    const GLenum MAX_VERTEX_UNIFORM_VECTORS       = 0x8DFB;
    312    const GLenum MAX_VARYING_VECTORS              = 0x8DFC;
    313    const GLenum MAX_COMBINED_TEXTURE_IMAGE_UNITS = 0x8B4D;
    314    const GLenum MAX_VERTEX_TEXTURE_IMAGE_UNITS   = 0x8B4C;
    315    const GLenum MAX_TEXTURE_IMAGE_UNITS          = 0x8872;
    316    const GLenum MAX_FRAGMENT_UNIFORM_VECTORS     = 0x8DFD;
    317    const GLenum SHADER_TYPE                      = 0x8B4F;
    318    const GLenum DELETE_STATUS                    = 0x8B80;
    319    const GLenum LINK_STATUS                      = 0x8B82;
    320    const GLenum VALIDATE_STATUS                  = 0x8B83;
    321    const GLenum ATTACHED_SHADERS                 = 0x8B85;
    322    const GLenum ACTIVE_UNIFORMS                  = 0x8B86;
    323    const GLenum ACTIVE_ATTRIBUTES                = 0x8B89;
    324    const GLenum SHADING_LANGUAGE_VERSION         = 0x8B8C;
    325    const GLenum CURRENT_PROGRAM                  = 0x8B8D;
    326 
    327    /* StencilFunction */
    328    const GLenum NEVER                          = 0x0200;
    329    const GLenum LESS                           = 0x0201;
    330    const GLenum EQUAL                          = 0x0202;
    331    const GLenum LEQUAL                         = 0x0203;
    332    const GLenum GREATER                        = 0x0204;
    333    const GLenum NOTEQUAL                       = 0x0205;
    334    const GLenum GEQUAL                         = 0x0206;
    335    const GLenum ALWAYS                         = 0x0207;
    336 
    337    /* StencilOp */
    338    /*      ZERO */
    339    const GLenum KEEP                           = 0x1E00;
    340    const GLenum REPLACE                        = 0x1E01;
    341    const GLenum INCR                           = 0x1E02;
    342    const GLenum DECR                           = 0x1E03;
    343    const GLenum INVERT                         = 0x150A;
    344    const GLenum INCR_WRAP                      = 0x8507;
    345    const GLenum DECR_WRAP                      = 0x8508;
    346 
    347    /* StringName */
    348    const GLenum VENDOR                         = 0x1F00;
    349    const GLenum RENDERER                       = 0x1F01;
    350    const GLenum VERSION                        = 0x1F02;
    351 
    352    /* TextureMagFilter */
    353    const GLenum NEAREST                        = 0x2600;
    354    const GLenum LINEAR                         = 0x2601;
    355 
    356    /* TextureMinFilter */
    357    /*      NEAREST */
    358    /*      LINEAR */
    359    const GLenum NEAREST_MIPMAP_NEAREST         = 0x2700;
    360    const GLenum LINEAR_MIPMAP_NEAREST          = 0x2701;
    361    const GLenum NEAREST_MIPMAP_LINEAR          = 0x2702;
    362    const GLenum LINEAR_MIPMAP_LINEAR           = 0x2703;
    363 
    364    /* TextureParameterName */
    365    const GLenum TEXTURE_MAG_FILTER             = 0x2800;
    366    const GLenum TEXTURE_MIN_FILTER             = 0x2801;
    367    const GLenum TEXTURE_WRAP_S                 = 0x2802;
    368    const GLenum TEXTURE_WRAP_T                 = 0x2803;
    369 
    370    /* TextureTarget */
    371    const GLenum TEXTURE_2D                     = 0x0DE1;
    372    const GLenum TEXTURE                        = 0x1702;
    373 
    374    const GLenum TEXTURE_CUBE_MAP               = 0x8513;
    375    const GLenum TEXTURE_BINDING_CUBE_MAP       = 0x8514;
    376    const GLenum TEXTURE_CUBE_MAP_POSITIVE_X    = 0x8515;
    377    const GLenum TEXTURE_CUBE_MAP_NEGATIVE_X    = 0x8516;
    378    const GLenum TEXTURE_CUBE_MAP_POSITIVE_Y    = 0x8517;
    379    const GLenum TEXTURE_CUBE_MAP_NEGATIVE_Y    = 0x8518;
    380    const GLenum TEXTURE_CUBE_MAP_POSITIVE_Z    = 0x8519;
    381    const GLenum TEXTURE_CUBE_MAP_NEGATIVE_Z    = 0x851A;
    382    const GLenum MAX_CUBE_MAP_TEXTURE_SIZE      = 0x851C;
    383 
    384    /* TextureUnit */
    385    const GLenum TEXTURE0                       = 0x84C0;
    386    const GLenum TEXTURE1                       = 0x84C1;
    387    const GLenum TEXTURE2                       = 0x84C2;
    388    const GLenum TEXTURE3                       = 0x84C3;
    389    const GLenum TEXTURE4                       = 0x84C4;
    390    const GLenum TEXTURE5                       = 0x84C5;
    391    const GLenum TEXTURE6                       = 0x84C6;
    392    const GLenum TEXTURE7                       = 0x84C7;
    393    const GLenum TEXTURE8                       = 0x84C8;
    394    const GLenum TEXTURE9                       = 0x84C9;
    395    const GLenum TEXTURE10                      = 0x84CA;
    396    const GLenum TEXTURE11                      = 0x84CB;
    397    const GLenum TEXTURE12                      = 0x84CC;
    398    const GLenum TEXTURE13                      = 0x84CD;
    399    const GLenum TEXTURE14                      = 0x84CE;
    400    const GLenum TEXTURE15                      = 0x84CF;
    401    const GLenum TEXTURE16                      = 0x84D0;
    402    const GLenum TEXTURE17                      = 0x84D1;
    403    const GLenum TEXTURE18                      = 0x84D2;
    404    const GLenum TEXTURE19                      = 0x84D3;
    405    const GLenum TEXTURE20                      = 0x84D4;
    406    const GLenum TEXTURE21                      = 0x84D5;
    407    const GLenum TEXTURE22                      = 0x84D6;
    408    const GLenum TEXTURE23                      = 0x84D7;
    409    const GLenum TEXTURE24                      = 0x84D8;
    410    const GLenum TEXTURE25                      = 0x84D9;
    411    const GLenum TEXTURE26                      = 0x84DA;
    412    const GLenum TEXTURE27                      = 0x84DB;
    413    const GLenum TEXTURE28                      = 0x84DC;
    414    const GLenum TEXTURE29                      = 0x84DD;
    415    const GLenum TEXTURE30                      = 0x84DE;
    416    const GLenum TEXTURE31                      = 0x84DF;
    417    const GLenum ACTIVE_TEXTURE                 = 0x84E0;
    418 
    419    /* TextureWrapMode */
    420    const GLenum REPEAT                         = 0x2901;
    421    const GLenum CLAMP_TO_EDGE                  = 0x812F;
    422    const GLenum MIRRORED_REPEAT                = 0x8370;
    423 
    424    /* Uniform Types */
    425    const GLenum FLOAT_VEC2                     = 0x8B50;
    426    const GLenum FLOAT_VEC3                     = 0x8B51;
    427    const GLenum FLOAT_VEC4                     = 0x8B52;
    428    const GLenum INT_VEC2                       = 0x8B53;
    429    const GLenum INT_VEC3                       = 0x8B54;
    430    const GLenum INT_VEC4                       = 0x8B55;
    431    const GLenum BOOL                           = 0x8B56;
    432    const GLenum BOOL_VEC2                      = 0x8B57;
    433    const GLenum BOOL_VEC3                      = 0x8B58;
    434    const GLenum BOOL_VEC4                      = 0x8B59;
    435    const GLenum FLOAT_MAT2                     = 0x8B5A;
    436    const GLenum FLOAT_MAT3                     = 0x8B5B;
    437    const GLenum FLOAT_MAT4                     = 0x8B5C;
    438    const GLenum SAMPLER_2D                     = 0x8B5E;
    439    const GLenum SAMPLER_CUBE                   = 0x8B60;
    440 
    441    /* Vertex Arrays */
    442    const GLenum VERTEX_ATTRIB_ARRAY_ENABLED        = 0x8622;
    443    const GLenum VERTEX_ATTRIB_ARRAY_SIZE           = 0x8623;
    444    const GLenum VERTEX_ATTRIB_ARRAY_STRIDE         = 0x8624;
    445    const GLenum VERTEX_ATTRIB_ARRAY_TYPE           = 0x8625;
    446    const GLenum VERTEX_ATTRIB_ARRAY_NORMALIZED     = 0x886A;
    447    const GLenum VERTEX_ATTRIB_ARRAY_POINTER        = 0x8645;
    448    const GLenum VERTEX_ATTRIB_ARRAY_BUFFER_BINDING = 0x889F;
    449 
    450    /* Read Format */
    451    const GLenum IMPLEMENTATION_COLOR_READ_TYPE   = 0x8B9A;
    452    const GLenum IMPLEMENTATION_COLOR_READ_FORMAT = 0x8B9B;
    453 
    454    /* Shader Source */
    455    const GLenum COMPILE_STATUS                 = 0x8B81;
    456 
    457    /* Shader Precision-Specified Types */
    458    const GLenum LOW_FLOAT                      = 0x8DF0;
    459    const GLenum MEDIUM_FLOAT                   = 0x8DF1;
    460    const GLenum HIGH_FLOAT                     = 0x8DF2;
    461    const GLenum LOW_INT                        = 0x8DF3;
    462    const GLenum MEDIUM_INT                     = 0x8DF4;
    463    const GLenum HIGH_INT                       = 0x8DF5;
    464 
    465    /* Framebuffer Object. */
    466    const GLenum FRAMEBUFFER                    = 0x8D40;
    467    const GLenum RENDERBUFFER                   = 0x8D41;
    468 
    469    const GLenum RGBA4                          = 0x8056;
    470    const GLenum RGB5_A1                        = 0x8057;
    471    const GLenum RGBA8                          = 0x8058;
    472    const GLenum RGB565                         = 0x8D62;
    473    const GLenum DEPTH_COMPONENT16              = 0x81A5;
    474    const GLenum STENCIL_INDEX8                 = 0x8D48;
    475    const GLenum DEPTH_STENCIL                  = 0x84F9;
    476 
    477    const GLenum RENDERBUFFER_WIDTH             = 0x8D42;
    478    const GLenum RENDERBUFFER_HEIGHT            = 0x8D43;
    479    const GLenum RENDERBUFFER_INTERNAL_FORMAT   = 0x8D44;
    480    const GLenum RENDERBUFFER_RED_SIZE          = 0x8D50;
    481    const GLenum RENDERBUFFER_GREEN_SIZE        = 0x8D51;
    482    const GLenum RENDERBUFFER_BLUE_SIZE         = 0x8D52;
    483    const GLenum RENDERBUFFER_ALPHA_SIZE        = 0x8D53;
    484    const GLenum RENDERBUFFER_DEPTH_SIZE        = 0x8D54;
    485    const GLenum RENDERBUFFER_STENCIL_SIZE      = 0x8D55;
    486 
    487    const GLenum FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE           = 0x8CD0;
    488    const GLenum FRAMEBUFFER_ATTACHMENT_OBJECT_NAME           = 0x8CD1;
    489    const GLenum FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL         = 0x8CD2;
    490    const GLenum FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE = 0x8CD3;
    491 
    492    const GLenum COLOR_ATTACHMENT0              = 0x8CE0;
    493    const GLenum DEPTH_ATTACHMENT               = 0x8D00;
    494    const GLenum STENCIL_ATTACHMENT             = 0x8D20;
    495    const GLenum DEPTH_STENCIL_ATTACHMENT       = 0x821A;
    496 
    497    const GLenum NONE                           = 0;
    498 
    499    const GLenum FRAMEBUFFER_COMPLETE                      = 0x8CD5;
    500    const GLenum FRAMEBUFFER_INCOMPLETE_ATTACHMENT         = 0x8CD6;
    501    const GLenum FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT = 0x8CD7;
    502    const GLenum FRAMEBUFFER_INCOMPLETE_DIMENSIONS         = 0x8CD9;
    503    const GLenum FRAMEBUFFER_UNSUPPORTED                   = 0x8CDD;
    504 
    505    const GLenum FRAMEBUFFER_BINDING            = 0x8CA6;
    506    const GLenum RENDERBUFFER_BINDING           = 0x8CA7;
    507    const GLenum MAX_RENDERBUFFER_SIZE          = 0x84E8;
    508 
    509    const GLenum INVALID_FRAMEBUFFER_OPERATION  = 0x0506;
    510 
    511    /* WebGL-specific enums */
    512    const GLenum UNPACK_FLIP_Y_WEBGL            = 0x9240;
    513    const GLenum UNPACK_PREMULTIPLY_ALPHA_WEBGL = 0x9241;
    514    const GLenum CONTEXT_LOST_WEBGL             = 0x9242;
    515    const GLenum UNPACK_COLORSPACE_CONVERSION_WEBGL = 0x9243;
    516    const GLenum BROWSER_DEFAULT_WEBGL          = 0x9244;
    517 
    518    readonly attribute (HTMLCanvasElement or OffscreenCanvas) canvas;
    519    readonly attribute GLsizei drawingBufferWidth;
    520    readonly attribute GLsizei drawingBufferHeight;
    521    readonly attribute GLenum drawingBufferFormat;
    522 
    523    /* Upon context creation, drawingBufferColorSpace and unpackColorSpace both
    524       default to the value "srgb". */
    525    attribute PredefinedColorSpace drawingBufferColorSpace;
    526    attribute PredefinedColorSpace unpackColorSpace;
    527 
    528    [WebGLHandlesContextLoss] WebGLContextAttributes? getContextAttributes();
    529    [WebGLHandlesContextLoss] boolean isContextLost();
    530 
    531    sequence<DOMString>? getSupportedExtensions();
    532    object? getExtension(DOMString name);
    533 
    534    undefined drawingBufferStorage(GLenum sizedFormat, unsigned long width, unsigned long height);
    535 
    536    undefined activeTexture(GLenum texture);
    537    undefined attachShader(WebGLProgram program, WebGLShader shader);
    538    undefined bindAttribLocation(WebGLProgram program, GLuint index, DOMString name);
    539    undefined bindBuffer(GLenum target, WebGLBuffer? buffer);
    540    undefined bindFramebuffer(GLenum target, WebGLFramebuffer? framebuffer);
    541    undefined bindRenderbuffer(GLenum target, WebGLRenderbuffer? renderbuffer);
    542    undefined bindTexture(GLenum target, WebGLTexture? texture);
    543    undefined blendColor(GLclampf red, GLclampf green, GLclampf blue, GLclampf alpha);
    544    undefined blendEquation(GLenum mode);
    545    undefined blendEquationSeparate(GLenum modeRGB, GLenum modeAlpha);
    546    undefined blendFunc(GLenum sfactor, GLenum dfactor);
    547    undefined blendFuncSeparate(GLenum srcRGB, GLenum dstRGB,
    548                                GLenum srcAlpha, GLenum dstAlpha);
    549 
    550    [WebGLHandlesContextLoss] GLenum checkFramebufferStatus(GLenum target);
    551    undefined clear(GLbitfield mask);
    552    undefined clearColor(GLclampf red, GLclampf green, GLclampf blue, GLclampf alpha);
    553    undefined clearDepth(GLclampf depth);
    554    undefined clearStencil(GLint s);
    555    undefined colorMask(GLboolean red, GLboolean green, GLboolean blue, GLboolean alpha);
    556    undefined compileShader(WebGLShader shader);
    557 
    558    undefined copyTexImage2D(GLenum target, GLint level, GLenum internalformat,
    559                             GLint x, GLint y, GLsizei width, GLsizei height,
    560                             GLint border);
    561    undefined copyTexSubImage2D(GLenum target, GLint level, GLint xoffset, GLint yoffset,
    562                                GLint x, GLint y, GLsizei width, GLsizei height);
    563 
    564    WebGLBuffer createBuffer();
    565    WebGLFramebuffer createFramebuffer();
    566    WebGLProgram createProgram();
    567    WebGLRenderbuffer createRenderbuffer();
    568    WebGLShader? createShader(GLenum type);
    569    WebGLTexture createTexture();
    570 
    571    undefined cullFace(GLenum mode);
    572 
    573    undefined deleteBuffer(WebGLBuffer? buffer);
    574    undefined deleteFramebuffer(WebGLFramebuffer? framebuffer);
    575    undefined deleteProgram(WebGLProgram? program);
    576    undefined deleteRenderbuffer(WebGLRenderbuffer? renderbuffer);
    577    undefined deleteShader(WebGLShader? shader);
    578    undefined deleteTexture(WebGLTexture? texture);
    579 
    580    undefined depthFunc(GLenum func);
    581    undefined depthMask(GLboolean flag);
    582    undefined depthRange(GLclampf zNear, GLclampf zFar);
    583    undefined detachShader(WebGLProgram program, WebGLShader shader);
    584    undefined disable(GLenum cap);
    585    undefined disableVertexAttribArray(GLuint index);
    586    undefined drawArrays(GLenum mode, GLint first, GLsizei count);
    587    undefined drawElements(GLenum mode, GLsizei count, GLenum type, GLintptr offset);
    588 
    589    undefined enable(GLenum cap);
    590    undefined enableVertexAttribArray(GLuint index);
    591    undefined finish();
    592    undefined flush();
    593    undefined framebufferRenderbuffer(GLenum target, GLenum attachment,
    594                                      GLenum renderbuffertarget,
    595                                      WebGLRenderbuffer? renderbuffer);
    596    undefined framebufferTexture2D(GLenum target, GLenum attachment, GLenum textarget,
    597                                   WebGLTexture? texture, GLint level);
    598    undefined frontFace(GLenum mode);
    599 
    600    undefined generateMipmap(GLenum target);
    601 
    602    WebGLActiveInfo? getActiveAttrib(WebGLProgram program, GLuint index);
    603    WebGLActiveInfo? getActiveUniform(WebGLProgram program, GLuint index);
    604    sequence<WebGLShader>? getAttachedShaders(WebGLProgram program);
    605 
    606    [WebGLHandlesContextLoss] GLint getAttribLocation(WebGLProgram program, DOMString name);
    607 
    608    any getBufferParameter(GLenum target, GLenum pname);
    609    any getParameter(GLenum pname);
    610 
    611    [WebGLHandlesContextLoss] GLenum getError();
    612 
    613    any getFramebufferAttachmentParameter(GLenum target, GLenum attachment,
    614                                          GLenum pname);
    615    any getProgramParameter(WebGLProgram program, GLenum pname);
    616    DOMString? getProgramInfoLog(WebGLProgram program);
    617    any getRenderbufferParameter(GLenum target, GLenum pname);
    618    any getShaderParameter(WebGLShader shader, GLenum pname);
    619    WebGLShaderPrecisionFormat? getShaderPrecisionFormat(GLenum shadertype, GLenum precisiontype);
    620    DOMString? getShaderInfoLog(WebGLShader shader);
    621 
    622    DOMString? getShaderSource(WebGLShader shader);
    623 
    624    any getTexParameter(GLenum target, GLenum pname);
    625 
    626    any getUniform(WebGLProgram program, WebGLUniformLocation location);
    627 
    628    WebGLUniformLocation? getUniformLocation(WebGLProgram program, DOMString name);
    629 
    630    any getVertexAttrib(GLuint index, GLenum pname);
    631 
    632    [WebGLHandlesContextLoss] GLintptr getVertexAttribOffset(GLuint index, GLenum pname);
    633 
    634    undefined hint(GLenum target, GLenum mode);
    635    [WebGLHandlesContextLoss] GLboolean isBuffer(WebGLBuffer? buffer);
    636    [WebGLHandlesContextLoss] GLboolean isEnabled(GLenum cap);
    637    [WebGLHandlesContextLoss] GLboolean isFramebuffer(WebGLFramebuffer? framebuffer);
    638    [WebGLHandlesContextLoss] GLboolean isProgram(WebGLProgram? program);
    639    [WebGLHandlesContextLoss] GLboolean isRenderbuffer(WebGLRenderbuffer? renderbuffer);
    640    [WebGLHandlesContextLoss] GLboolean isShader(WebGLShader? shader);
    641    [WebGLHandlesContextLoss] GLboolean isTexture(WebGLTexture? texture);
    642    undefined lineWidth(GLfloat width);
    643    undefined linkProgram(WebGLProgram program);
    644    undefined pixelStorei(GLenum pname, GLint param);
    645    undefined polygonOffset(GLfloat factor, GLfloat units);
    646 
    647    undefined renderbufferStorage(GLenum target, GLenum internalformat,
    648                                  GLsizei width, GLsizei height);
    649    undefined sampleCoverage(GLclampf value, GLboolean invert);
    650    undefined scissor(GLint x, GLint y, GLsizei width, GLsizei height);
    651 
    652    undefined shaderSource(WebGLShader shader, DOMString source);
    653 
    654    undefined stencilFunc(GLenum func, GLint ref, GLuint mask);
    655    undefined stencilFuncSeparate(GLenum face, GLenum func, GLint ref, GLuint mask);
    656    undefined stencilMask(GLuint mask);
    657    undefined stencilMaskSeparate(GLenum face, GLuint mask);
    658    undefined stencilOp(GLenum fail, GLenum zfail, GLenum zpass);
    659    undefined stencilOpSeparate(GLenum face, GLenum fail, GLenum zfail, GLenum zpass);
    660 
    661    undefined texParameterf(GLenum target, GLenum pname, GLfloat param);
    662    undefined texParameteri(GLenum target, GLenum pname, GLint param);
    663 
    664    undefined uniform1f(WebGLUniformLocation? location, GLfloat x);
    665    undefined uniform2f(WebGLUniformLocation? location, GLfloat x, GLfloat y);
    666    undefined uniform3f(WebGLUniformLocation? location, GLfloat x, GLfloat y, GLfloat z);
    667    undefined uniform4f(WebGLUniformLocation? location, GLfloat x, GLfloat y, GLfloat z, GLfloat w);
    668 
    669    undefined uniform1i(WebGLUniformLocation? location, GLint x);
    670    undefined uniform2i(WebGLUniformLocation? location, GLint x, GLint y);
    671    undefined uniform3i(WebGLUniformLocation? location, GLint x, GLint y, GLint z);
    672    undefined uniform4i(WebGLUniformLocation? location, GLint x, GLint y, GLint z, GLint w);
    673 
    674    undefined useProgram(WebGLProgram? program);
    675    undefined validateProgram(WebGLProgram program);
    676 
    677    undefined vertexAttrib1f(GLuint index, GLfloat x);
    678    undefined vertexAttrib2f(GLuint index, GLfloat x, GLfloat y);
    679    undefined vertexAttrib3f(GLuint index, GLfloat x, GLfloat y, GLfloat z);
    680    undefined vertexAttrib4f(GLuint index, GLfloat x, GLfloat y, GLfloat z, GLfloat w);
    681 
    682    undefined vertexAttrib1fv(GLuint index, Float32List values);
    683    undefined vertexAttrib2fv(GLuint index, Float32List values);
    684    undefined vertexAttrib3fv(GLuint index, Float32List values);
    685    undefined vertexAttrib4fv(GLuint index, Float32List values);
    686 
    687    undefined vertexAttribPointer(GLuint index, GLint size, GLenum type,
    688                                  GLboolean normalized, GLsizei stride, GLintptr offset);
    689 
    690    undefined viewport(GLint x, GLint y, GLsizei width, GLsizei height);
    691 };
    692 
    693 interface mixin WebGLRenderingContextOverloads
    694 {
    695    undefined bufferData(GLenum target, GLsizeiptr size, GLenum usage);
    696    undefined bufferData(GLenum target, AllowSharedBufferSource? data, GLenum usage);
    697    undefined bufferSubData(GLenum target, GLintptr offset, AllowSharedBufferSource data);
    698 
    699    undefined compressedTexImage2D(GLenum target, GLint level, GLenum internalformat,
    700                                   GLsizei width, GLsizei height, GLint border,
    701                                   [AllowShared] ArrayBufferView data);
    702    undefined compressedTexSubImage2D(GLenum target, GLint level,
    703                                      GLint xoffset, GLint yoffset,
    704                                      GLsizei width, GLsizei height, GLenum format,
    705                                      [AllowShared] ArrayBufferView data);
    706 
    707    undefined readPixels(GLint x, GLint y, GLsizei width, GLsizei height,
    708                         GLenum format, GLenum type, [AllowShared] ArrayBufferView? pixels);
    709 
    710    undefined texImage2D(GLenum target, GLint level, GLint internalformat,
    711                         GLsizei width, GLsizei height, GLint border, GLenum format,
    712                         GLenum type, [AllowShared] ArrayBufferView? pixels);
    713    undefined texImage2D(GLenum target, GLint level, GLint internalformat,
    714                         GLenum format, GLenum type, TexImageSource source); // May throw DOMException
    715 
    716    undefined texSubImage2D(GLenum target, GLint level, GLint xoffset, GLint yoffset,
    717                            GLsizei width, GLsizei height,
    718                            GLenum format, GLenum type, [AllowShared] ArrayBufferView? pixels);
    719    undefined texSubImage2D(GLenum target, GLint level, GLint xoffset, GLint yoffset,
    720                            GLenum format, GLenum type, TexImageSource source); // May throw DOMException
    721 
    722    undefined uniform1fv(WebGLUniformLocation? location, Float32List v);
    723    undefined uniform2fv(WebGLUniformLocation? location, Float32List v);
    724    undefined uniform3fv(WebGLUniformLocation? location, Float32List v);
    725    undefined uniform4fv(WebGLUniformLocation? location, Float32List v);
    726 
    727    undefined uniform1iv(WebGLUniformLocation? location, Int32List v);
    728    undefined uniform2iv(WebGLUniformLocation? location, Int32List v);
    729    undefined uniform3iv(WebGLUniformLocation? location, Int32List v);
    730    undefined uniform4iv(WebGLUniformLocation? location, Int32List v);
    731 
    732    undefined uniformMatrix2fv(WebGLUniformLocation? location, GLboolean transpose, Float32List value);
    733    undefined uniformMatrix3fv(WebGLUniformLocation? location, GLboolean transpose, Float32List value);
    734    undefined uniformMatrix4fv(WebGLUniformLocation? location, GLboolean transpose, Float32List value);
    735 };
    736 
    737 [Exposed=(Window,Worker)]
    738 interface WebGLRenderingContext
    739 {
    740 };
    741 WebGLRenderingContext includes WebGLRenderingContextBase;
    742 WebGLRenderingContext includes WebGLRenderingContextOverloads;
    743 
    744 [Exposed=(Window,Worker)]
    745 interface WebGLContextEvent : Event {
    746    constructor(DOMString type, optional WebGLContextEventInit eventInit = {});
    747    readonly attribute DOMString statusMessage;
    748 };
    749 
    750 // EventInit is defined in the DOM4 specification.
    751 dictionary WebGLContextEventInit : EventInit {
    752    DOMString statusMessage = "";
    753 };