WebGLRenderingContext.idl   [plain text]

/*
 * Copyright (C) 2009 Apple Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
 */

module html {

    interface [
        Conditional=3D_CANVAS,
        InterfaceUUID=98fb48ae-7216-489c-862b-8e1217fc4443,
        ImplementationUUID=ab4f0781-152f-450e-9546-5b3987491a54
    ] WebGLRenderingContext : CanvasRenderingContext {

        /* ClearBufferMask */
        const unsigned int DEPTH_BUFFER_BIT               = 0x00000100;
        const unsigned int STENCIL_BUFFER_BIT             = 0x00000400;
        const unsigned int COLOR_BUFFER_BIT               = 0x00004000;

        /* Boolean */
        const unsigned int FALSE                          = 0;
        const unsigned int TRUE                           = 1;

        /* BeginMode */
        const unsigned int POINTS                         = 0x0000;
        const unsigned int LINES                          = 0x0001;
        const unsigned int LINE_LOOP                      = 0x0002;
        const unsigned int LINE_STRIP                     = 0x0003;
        const unsigned int TRIANGLES                      = 0x0004;
        const unsigned int TRIANGLE_STRIP                 = 0x0005;
        const unsigned int TRIANGLE_FAN                   = 0x0006;

        /* AlphaFunction (not supported in ES20) */
        /*      NEVER */
        /*      LESS */
        /*      EQUAL */
        /*      LEQUAL */
        /*      GREATER */
        /*      NOTEQUAL */
        /*      GEQUAL */
        /*      ALWAYS */

        /* BlendingFactorDest */
        const unsigned int ZERO                           = 0;
        const unsigned int ONE                            = 1;
        const unsigned int SRC_COLOR                      = 0x0300;
        const unsigned int ONE_MINUS_SRC_COLOR            = 0x0301;
        const unsigned int SRC_ALPHA                      = 0x0302;
        const unsigned int ONE_MINUS_SRC_ALPHA            = 0x0303;
        const unsigned int DST_ALPHA                      = 0x0304;
        const unsigned int ONE_MINUS_DST_ALPHA            = 0x0305;

        /* BlendingFactorSrc */
        /*      ZERO */
        /*      ONE */
        const unsigned int DST_COLOR                      = 0x0306;
        const unsigned int ONE_MINUS_DST_COLOR            = 0x0307;
        const unsigned int SRC_ALPHA_SATURATE             = 0x0308;
        /*      SRC_ALPHA */
        /*      ONE_MINUS_SRC_ALPHA */
        /*      DST_ALPHA */
        /*      ONE_MINUS_DST_ALPHA */

        /* BlendEquationSeparate */
        const unsigned int FUNC_ADD                       = 0x8006;
        const unsigned int BLEND_EQUATION                 = 0x8009;
        const unsigned int BLEND_EQUATION_RGB             = 0x8009;   /* same as BLEND_EQUATION */
        const unsigned int BLEND_EQUATION_ALPHA           = 0x883D;

        /* BlendSubtract */
        const unsigned int FUNC_SUBTRACT                  = 0x800A;
        const unsigned int FUNC_REVERSE_SUBTRACT          = 0x800B;

        /* Separate Blend Functions */
        const unsigned int BLEND_DST_RGB                  = 0x80C8;
        const unsigned int BLEND_SRC_RGB                  = 0x80C9;
        const unsigned int BLEND_DST_ALPHA                = 0x80CA;
        const unsigned int BLEND_SRC_ALPHA                = 0x80CB;
        const unsigned int CONSTANT_COLOR                 = 0x8001;
        const unsigned int ONE_MINUS_CONSTANT_COLOR       = 0x8002;
        const unsigned int CONSTANT_ALPHA                 = 0x8003;
        const unsigned int ONE_MINUS_CONSTANT_ALPHA       = 0x8004;
        const unsigned int BLEND_COLOR                    = 0x8005;

        /* Buffer Objects */
        const unsigned int ARRAY_BUFFER                   = 0x8892;
        const unsigned int ELEMENT_ARRAY_BUFFER           = 0x8893;
        const unsigned int ARRAY_BUFFER_BINDING           = 0x8894;
        const unsigned int ELEMENT_ARRAY_BUFFER_BINDING   = 0x8895;

        const unsigned int STREAM_DRAW                    = 0x88E0;
        const unsigned int STATIC_DRAW                    = 0x88E4;
        const unsigned int DYNAMIC_DRAW                   = 0x88E8;

        const unsigned int BUFFER_SIZE                    = 0x8764;
        const unsigned int BUFFER_USAGE                   = 0x8765;

        const unsigned int CURRENT_VERTEX_ATTRIB          = 0x8626;

        /* CullFaceMode */
        const unsigned int FRONT                          = 0x0404;
        const unsigned int BACK                           = 0x0405;
        const unsigned int FRONT_AND_BACK                 = 0x0408;

        /* DepthFunction */
        /*      NEVER */
        /*      LESS */
        /*      EQUAL */
        /*      LEQUAL */
        /*      GREATER */
        /*      NOTEQUAL */
        /*      GEQUAL */
        /*      ALWAYS */

        /* EnableCap */
        const unsigned int TEXTURE_2D                     = 0x0DE1;
        const unsigned int CULL_FACE                      = 0x0B44;
        const unsigned int BLEND                          = 0x0BE2;
        const unsigned int DITHER                         = 0x0BD0;
        const unsigned int STENCIL_TEST                   = 0x0B90;
        const unsigned int DEPTH_TEST                     = 0x0B71;
        const unsigned int SCISSOR_TEST                   = 0x0C11;
        const unsigned int POLYGON_OFFSET_FILL            = 0x8037;
        const unsigned int SAMPLE_ALPHA_TO_COVERAGE       = 0x809E;
        const unsigned int SAMPLE_COVERAGE                = 0x80A0;

        /* ErrorCode */
        const unsigned int NO_ERROR                       = 0;
        const unsigned int INVALID_ENUM                   = 0x0500;
        const unsigned int INVALID_VALUE                  = 0x0501;
        const unsigned int INVALID_OPERATION              = 0x0502;
        const unsigned int OUT_OF_MEMORY                  = 0x0505;

        /* FrontFaceDirection */
        const unsigned int CW                             = 0x0900;
        const unsigned int CCW                            = 0x0901;

        /* GetPName */
        const unsigned int LINE_WIDTH                     = 0x0B21;
        const unsigned int ALIASED_POINT_SIZE_RANGE       = 0x846D;
        const unsigned int ALIASED_LINE_WIDTH_RANGE       = 0x846E;
        const unsigned int CULL_FACE_MODE                 = 0x0B45;
        const unsigned int FRONT_FACE                     = 0x0B46;
        const unsigned int DEPTH_RANGE                    = 0x0B70;
        const unsigned int DEPTH_WRITEMASK                = 0x0B72;
        const unsigned int DEPTH_CLEAR_VALUE              = 0x0B73;
        const unsigned int DEPTH_FUNC                     = 0x0B74;
        const unsigned int STENCIL_CLEAR_VALUE            = 0x0B91;
        const unsigned int STENCIL_FUNC                   = 0x0B92;
        const unsigned int STENCIL_FAIL                   = 0x0B94;
        const unsigned int STENCIL_PASS_DEPTH_FAIL        = 0x0B95;
        const unsigned int STENCIL_PASS_DEPTH_PASS        = 0x0B96;
        const unsigned int STENCIL_REF                    = 0x0B97;
        const unsigned int STENCIL_VALUE_MASK             = 0x0B93;
        const unsigned int STENCIL_WRITEMASK              = 0x0B98;
        const unsigned int STENCIL_BACK_FUNC              = 0x8800;
        const unsigned int STENCIL_BACK_FAIL              = 0x8801;
        const unsigned int STENCIL_BACK_PASS_DEPTH_FAIL   = 0x8802;
        const unsigned int STENCIL_BACK_PASS_DEPTH_PASS   = 0x8803;
        const unsigned int STENCIL_BACK_REF               = 0x8CA3;
        const unsigned int STENCIL_BACK_VALUE_MASK        = 0x8CA4;
        const unsigned int STENCIL_BACK_WRITEMASK         = 0x8CA5;
        const unsigned int VIEWPORT                       = 0x0BA2;
        const unsigned int SCISSOR_BOX                    = 0x0C10;
        /*      SCISSOR_TEST */
        const unsigned int COLOR_CLEAR_VALUE              = 0x0C22;
        const unsigned int COLOR_WRITEMASK                = 0x0C23;
        const unsigned int UNPACK_ALIGNMENT               = 0x0CF5;
        const unsigned int PACK_ALIGNMENT                 = 0x0D05;
        const unsigned int MAX_TEXTURE_SIZE               = 0x0D33;
        const unsigned int MAX_VIEWPORT_DIMS              = 0x0D3A;
        const unsigned int SUBPIXEL_BITS                  = 0x0D50;
        const unsigned int RED_BITS                       = 0x0D52;
        const unsigned int GREEN_BITS                     = 0x0D53;
        const unsigned int BLUE_BITS                      = 0x0D54;
        const unsigned int ALPHA_BITS                     = 0x0D55;
        const unsigned int DEPTH_BITS                     = 0x0D56;
        const unsigned int STENCIL_BITS                   = 0x0D57;
        const unsigned int POLYGON_OFFSET_UNITS           = 0x2A00;
        /*      POLYGON_OFFSET_FILL */
        const unsigned int POLYGON_OFFSET_FACTOR          = 0x8038;
        const unsigned int TEXTURE_BINDING_2D             = 0x8069;
        const unsigned int SAMPLE_BUFFERS                 = 0x80A8;
        const unsigned int SAMPLES                        = 0x80A9;
        const unsigned int SAMPLE_COVERAGE_VALUE          = 0x80AA;
        const unsigned int SAMPLE_COVERAGE_INVERT         = 0x80AB;

        /* GetTextureParameter */
        /*      TEXTURE_MAG_FILTER */
        /*      TEXTURE_MIN_FILTER */
        /*      TEXTURE_WRAP_S */
        /*      TEXTURE_WRAP_T */

        const unsigned int NUM_COMPRESSED_TEXTURE_FORMATS = 0x86A2;
        const unsigned int COMPRESSED_TEXTURE_FORMATS     = 0x86A3;

        /* HintMode */
        const unsigned int DONT_CARE                      = 0x1100;
        const unsigned int FASTEST                        = 0x1101;
        const unsigned int NICEST                         = 0x1102;

        /* HintTarget */
        const unsigned int GENERATE_MIPMAP_HINT            = 0x8192;

        /* DataType */
        const unsigned int BYTE                           = 0x1400;
        const unsigned int UNSIGNED_BYTE                  = 0x1401;
        const unsigned int SHORT                          = 0x1402;
        const unsigned int UNSIGNED_SHORT                 = 0x1403;
        const unsigned int INT                            = 0x1404;
        const unsigned int UNSIGNED_INT                   = 0x1405;
        const unsigned int FLOAT                          = 0x1406;
        const unsigned int FIXED                          = 0x140C;

        /* PixelFormat */
        const unsigned int DEPTH_COMPONENT                = 0x1902;
        const unsigned int ALPHA                          = 0x1906;
        const unsigned int RGB                            = 0x1907;
        const unsigned int RGBA                           = 0x1908;
        const unsigned int LUMINANCE                      = 0x1909;
        const unsigned int LUMINANCE_ALPHA                = 0x190A;

        /* PixelType */
        /*      UNSIGNED_BYTE */
        const unsigned int UNSIGNED_SHORT_4_4_4_4         = 0x8033;
        const unsigned int UNSIGNED_SHORT_5_5_5_1         = 0x8034;
        const unsigned int UNSIGNED_SHORT_5_6_5           = 0x8363;

        /* Shaders */
        const unsigned int FRAGMENT_SHADER                  = 0x8B30;
        const unsigned int VERTEX_SHADER                    = 0x8B31;
        const unsigned int MAX_VERTEX_ATTRIBS               = 0x8869;
        const unsigned int MAX_VERTEX_UNIFORM_VECTORS       = 0x8DFB;
        const unsigned int MAX_VARYING_VECTORS              = 0x8DFC;
        const unsigned int MAX_COMBINED_TEXTURE_IMAGE_UNITS = 0x8B4D;
        const unsigned int MAX_VERTEX_TEXTURE_IMAGE_UNITS   = 0x8B4C;
        const unsigned int MAX_TEXTURE_IMAGE_UNITS          = 0x8872;
        const unsigned int MAX_FRAGMENT_UNIFORM_VECTORS     = 0x8DFD;
        const unsigned int SHADER_TYPE                      = 0x8B4F;
        const unsigned int DELETE_STATUS                    = 0x8B80;
        const unsigned int LINK_STATUS                      = 0x8B82;
        const unsigned int VALIDATE_STATUS                  = 0x8B83;
        const unsigned int ATTACHED_SHADERS                 = 0x8B85;
        const unsigned int ACTIVE_UNIFORMS                  = 0x8B86;
        const unsigned int ACTIVE_UNIFORM_MAX_LENGTH        = 0x8B87;
        const unsigned int ACTIVE_ATTRIBUTES                = 0x8B89;
        const unsigned int ACTIVE_ATTRIBUTE_MAX_LENGTH      = 0x8B8A;
        const unsigned int SHADING_LANGUAGE_VERSION         = 0x8B8C;
        const unsigned int CURRENT_PROGRAM                  = 0x8B8D;

        /* StencilFunction */
        const unsigned int NEVER                          = 0x0200;
        const unsigned int LESS                           = 0x0201;
        const unsigned int EQUAL                          = 0x0202;
        const unsigned int LEQUAL                         = 0x0203;
        const unsigned int GREATER                        = 0x0204;
        const unsigned int NOTEQUAL                       = 0x0205;
        const unsigned int GEQUAL                         = 0x0206;
        const unsigned int ALWAYS                         = 0x0207;

        /* StencilOp */
        /*      ZERO */
        const unsigned int KEEP                           = 0x1E00;
        const unsigned int REPLACE                        = 0x1E01;
        const unsigned int INCR                           = 0x1E02;
        const unsigned int DECR                           = 0x1E03;
        const unsigned int INVERT                         = 0x150A;
        const unsigned int INCR_WRAP                      = 0x8507;
        const unsigned int DECR_WRAP                      = 0x8508;

        /* StringName */
        const unsigned int VENDOR                         = 0x1F00;
        const unsigned int RENDERER                       = 0x1F01;
        const unsigned int VERSION                        = 0x1F02;
        const unsigned int EXTENSIONS                     = 0x1F03;

        /* TextureMagFilter */
        const unsigned int NEAREST                        = 0x2600;
        const unsigned int LINEAR                         = 0x2601;

        /* TextureMinFilter */
        /*      NEAREST */
        /*      LINEAR */
        const unsigned int NEAREST_MIPMAP_NEAREST         = 0x2700;
        const unsigned int LINEAR_MIPMAP_NEAREST          = 0x2701;
        const unsigned int NEAREST_MIPMAP_LINEAR          = 0x2702;
        const unsigned int LINEAR_MIPMAP_LINEAR           = 0x2703;

        /* TextureParameterName */
        const unsigned int TEXTURE_MAG_FILTER             = 0x2800;
        const unsigned int TEXTURE_MIN_FILTER             = 0x2801;
        const unsigned int TEXTURE_WRAP_S                 = 0x2802;
        const unsigned int TEXTURE_WRAP_T                 = 0x2803;

        /* TextureTarget */
        /*      TEXTURE_2D */
        const unsigned int TEXTURE                        = 0x1702;

        const unsigned int TEXTURE_CUBE_MAP               = 0x8513;
        const unsigned int TEXTURE_BINDING_CUBE_MAP       = 0x8514;
        const unsigned int TEXTURE_CUBE_MAP_POSITIVE_X    = 0x8515;
        const unsigned int TEXTURE_CUBE_MAP_NEGATIVE_X    = 0x8516;
        const unsigned int TEXTURE_CUBE_MAP_POSITIVE_Y    = 0x8517;
        const unsigned int TEXTURE_CUBE_MAP_NEGATIVE_Y    = 0x8518;
        const unsigned int TEXTURE_CUBE_MAP_POSITIVE_Z    = 0x8519;
        const unsigned int TEXTURE_CUBE_MAP_NEGATIVE_Z    = 0x851A;
        const unsigned int MAX_CUBE_MAP_TEXTURE_SIZE      = 0x851C;

        /* TextureUnit */
        const unsigned int TEXTURE0                       = 0x84C0;
        const unsigned int TEXTURE1                       = 0x84C1;
        const unsigned int TEXTURE2                       = 0x84C2;
        const unsigned int TEXTURE3                       = 0x84C3;
        const unsigned int TEXTURE4                       = 0x84C4;
        const unsigned int TEXTURE5                       = 0x84C5;
        const unsigned int TEXTURE6                       = 0x84C6;
        const unsigned int TEXTURE7                       = 0x84C7;
        const unsigned int TEXTURE8                       = 0x84C8;
        const unsigned int TEXTURE9                       = 0x84C9;
        const unsigned int TEXTURE10                      = 0x84CA;
        const unsigned int TEXTURE11                      = 0x84CB;
        const unsigned int TEXTURE12                      = 0x84CC;
        const unsigned int TEXTURE13                      = 0x84CD;
        const unsigned int TEXTURE14                      = 0x84CE;
        const unsigned int TEXTURE15                      = 0x84CF;
        const unsigned int TEXTURE16                      = 0x84D0;
        const unsigned int TEXTURE17                      = 0x84D1;
        const unsigned int TEXTURE18                      = 0x84D2;
        const unsigned int TEXTURE19                      = 0x84D3;
        const unsigned int TEXTURE20                      = 0x84D4;
        const unsigned int TEXTURE21                      = 0x84D5;
        const unsigned int TEXTURE22                      = 0x84D6;
        const unsigned int TEXTURE23                      = 0x84D7;
        const unsigned int TEXTURE24                      = 0x84D8;
        const unsigned int TEXTURE25                      = 0x84D9;
        const unsigned int TEXTURE26                      = 0x84DA;
        const unsigned int TEXTURE27                      = 0x84DB;
        const unsigned int TEXTURE28                      = 0x84DC;
        const unsigned int TEXTURE29                      = 0x84DD;
        const unsigned int TEXTURE30                      = 0x84DE;
        const unsigned int TEXTURE31                      = 0x84DF;
        const unsigned int ACTIVE_TEXTURE                 = 0x84E0;

        /* TextureWrapMode */
        const unsigned int REPEAT                         = 0x2901;
        const unsigned int CLAMP_TO_EDGE                  = 0x812F;
        const unsigned int MIRRORED_REPEAT                = 0x8370;

        /* Uniform Types */
        const unsigned int FLOAT_VEC2                     = 0x8B50;
        const unsigned int FLOAT_VEC3                     = 0x8B51;
        const unsigned int FLOAT_VEC4                     = 0x8B52;
        const unsigned int INT_VEC2                       = 0x8B53;
        const unsigned int INT_VEC3                       = 0x8B54;
        const unsigned int INT_VEC4                       = 0x8B55;
        const unsigned int BOOL                           = 0x8B56;
        const unsigned int BOOL_VEC2                      = 0x8B57;
        const unsigned int BOOL_VEC3                      = 0x8B58;
        const unsigned int BOOL_VEC4                      = 0x8B59;
        const unsigned int FLOAT_MAT2                     = 0x8B5A;
        const unsigned int FLOAT_MAT3                     = 0x8B5B;
        const unsigned int FLOAT_MAT4                     = 0x8B5C;
        const unsigned int SAMPLER_2D                     = 0x8B5E;
        const unsigned int SAMPLER_CUBE                   = 0x8B60;

        /* Vertex Arrays */
        const unsigned int VERTEX_ATTRIB_ARRAY_ENABLED        = 0x8622;
        const unsigned int VERTEX_ATTRIB_ARRAY_SIZE           = 0x8623;
        const unsigned int VERTEX_ATTRIB_ARRAY_STRIDE         = 0x8624;
        const unsigned int VERTEX_ATTRIB_ARRAY_TYPE           = 0x8625;
        const unsigned int VERTEX_ATTRIB_ARRAY_NORMALIZED     = 0x886A;
        const unsigned int VERTEX_ATTRIB_ARRAY_POINTER        = 0x8645;
        const unsigned int VERTEX_ATTRIB_ARRAY_BUFFER_BINDING = 0x889F;

        /* Read Format */
        const unsigned int IMPLEMENTATION_COLOR_READ_TYPE   = 0x8B9A;
        const unsigned int IMPLEMENTATION_COLOR_READ_FORMAT = 0x8B9B;

        /* Shader Source */
        const unsigned int COMPILE_STATUS                 = 0x8B81;
        const unsigned int INFO_LOG_LENGTH                = 0x8B84;
        const unsigned int SHADER_SOURCE_LENGTH           = 0x8B88;
        const unsigned int SHADER_COMPILER                = 0x8DFA;

        /* Shader Binary */
        const unsigned int SHADER_BINARY_FORMATS          = 0x8DF8;
        const unsigned int NUM_SHADER_BINARY_FORMATS      = 0x8DF9;

        /* Shader Precision-Specified Types */
        const unsigned int LOW_FLOAT                      = 0x8DF0;
        const unsigned int MEDIUM_FLOAT                   = 0x8DF1;
        const unsigned int HIGH_FLOAT                     = 0x8DF2;
        const unsigned int LOW_INT                        = 0x8DF3;
        const unsigned int MEDIUM_INT                     = 0x8DF4;
        const unsigned int HIGH_INT                       = 0x8DF5;

        /* Framebuffer Object. */
        const unsigned int FRAMEBUFFER                    = 0x8D40;
        const unsigned int RENDERBUFFER                   = 0x8D41;

        const unsigned int RGBA4                          = 0x8056;
        const unsigned int RGB5_A1                        = 0x8057;
        const unsigned int RGB565                         = 0x8D62;
        const unsigned int DEPTH_COMPONENT16              = 0x81A5;
        const unsigned int STENCIL_INDEX                  = 0x1901;
        const unsigned int STENCIL_INDEX8                 = 0x8D48;
        const unsigned int DEPTH_STENCIL                  = 0x84F9;

        const unsigned int RENDERBUFFER_WIDTH             = 0x8D42;
        const unsigned int RENDERBUFFER_HEIGHT            = 0x8D43;
        const unsigned int RENDERBUFFER_INTERNAL_FORMAT   = 0x8D44;
        const unsigned int RENDERBUFFER_RED_SIZE          = 0x8D50;
        const unsigned int RENDERBUFFER_GREEN_SIZE        = 0x8D51;
        const unsigned int RENDERBUFFER_BLUE_SIZE         = 0x8D52;
        const unsigned int RENDERBUFFER_ALPHA_SIZE        = 0x8D53;
        const unsigned int RENDERBUFFER_DEPTH_SIZE        = 0x8D54;
        const unsigned int RENDERBUFFER_STENCIL_SIZE      = 0x8D55;

        const unsigned int FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE           = 0x8CD0;
        const unsigned int FRAMEBUFFER_ATTACHMENT_OBJECT_NAME           = 0x8CD1;
        const unsigned int FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL         = 0x8CD2;
        const unsigned int FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE = 0x8CD3;

        const unsigned int COLOR_ATTACHMENT0              = 0x8CE0;
        const unsigned int DEPTH_ATTACHMENT               = 0x8D00;
        const unsigned int STENCIL_ATTACHMENT             = 0x8D20;
        const unsigned int DEPTH_STENCIL_ATTACHMENT       = 0x821A;

        const unsigned int NONE                           = 0;

        const unsigned int FRAMEBUFFER_COMPLETE                      = 0x8CD5;
        const unsigned int FRAMEBUFFER_INCOMPLETE_ATTACHMENT         = 0x8CD6;
        const unsigned int FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT = 0x8CD7;
        const unsigned int FRAMEBUFFER_INCOMPLETE_DIMENSIONS         = 0x8CD9;
        const unsigned int FRAMEBUFFER_UNSUPPORTED                   = 0x8CDD;

        const unsigned int FRAMEBUFFER_BINDING            = 0x8CA6;
        const unsigned int RENDERBUFFER_BINDING           = 0x8CA7;
        const unsigned int MAX_RENDERBUFFER_SIZE          = 0x84E8;

        const unsigned int INVALID_FRAMEBUFFER_OPERATION  = 0x0506;

        /* WebGL-specific enums */
        const unsigned int UNPACK_FLIP_Y_WEBGL            = 0x9240;
        const unsigned int UNPACK_PREMULTIPLY_ALPHA_WEBGL = 0x9241;

        long sizeInBytes(in unsigned long type) raises(DOMException);

        void         activeTexture(in unsigned long texture) raises(DOMException);
        void         attachShader(in WebGLProgram program, in WebGLShader shader) raises(DOMException);
        void         bindAttribLocation(in WebGLProgram program, in unsigned long index, in DOMString name) raises(DOMException);
        void         bindBuffer(in unsigned long target, in WebGLBuffer buffer) raises(DOMException);
        void         bindFramebuffer(in unsigned long target, in WebGLFramebuffer framebuffer) raises(DOMException);
        void         bindRenderbuffer(in unsigned long target, in WebGLRenderbuffer renderbuffer) raises(DOMException);
        void         bindTexture(in unsigned long target, in WebGLTexture texture) raises(DOMException);
        void         blendColor(in double red, in double green, in double blue, in double alpha);
        void         blendEquation( in unsigned long mode );
        void         blendEquationSeparate(in unsigned long modeRGB, in unsigned long modeAlpha);
        void         blendFunc(in unsigned long sfactor, in unsigned long dfactor);
        void         blendFuncSeparate(in unsigned long srcRGB, in unsigned long dstRGB, in unsigned long srcAlpha, in unsigned long dstAlpha);

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