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// WebGLWorker worker code
function WebGLWorker() {
//=======
// State
//=======
this.prefetchedParameters = {};
//===========
// Constants
//===========
/* ClearBufferMask */
this.DEPTH_BUFFER_BIT = 0x00000100;
this.STENCIL_BUFFER_BIT = 0x00000400;
this.COLOR_BUFFER_BIT = 0x00004000;
/* BeginMode */
this.POINTS = 0x0000;
this.LINES = 0x0001;
this.LINE_LOOP = 0x0002;
this.LINE_STRIP = 0x0003;
this.TRIANGLES = 0x0004;
this.TRIANGLE_STRIP = 0x0005;
this.TRIANGLE_FAN = 0x0006;
/* AlphaFunction (not supported in ES20) */
/* NEVER */
/* LESS */
/* EQUAL */
/* LEQUAL */
/* GREATER */
/* NOTEQUAL */
/* GEQUAL */
/* ALWAYS */
/* BlendingFactorDest */
this.ZERO = 0;
this.ONE = 1;
this.SRC_COLOR = 0x0300;
this.ONE_MINUS_SRC_COLOR = 0x0301;
this.SRC_ALPHA = 0x0302;
this.ONE_MINUS_SRC_ALPHA = 0x0303;
this.DST_ALPHA = 0x0304;
this.ONE_MINUS_DST_ALPHA = 0x0305;
/* BlendingFactorSrc */
/* ZERO */
/* ONE */
this.DST_COLOR = 0x0306;
this.ONE_MINUS_DST_COLOR = 0x0307;
this.SRC_ALPHA_SATURATE = 0x0308;
/* SRC_ALPHA */
/* ONE_MINUS_SRC_ALPHA */
/* DST_ALPHA */
/* ONE_MINUS_DST_ALPHA */
/* BlendEquationSeparate */
this.FUNC_ADD = 0x8006;
this.BLEND_EQUATION = 0x8009;
this.BLEND_EQUATION_RGB = 0x8009; /* same as BLEND_EQUATION */
this.BLEND_EQUATION_ALPHA = 0x883D;
/* BlendSubtract */
this.FUNC_SUBTRACT = 0x800A;
this.FUNC_REVERSE_SUBTRACT = 0x800B;
/* Separate Blend Functions */
this.BLEND_DST_RGB = 0x80C8;
this.BLEND_SRC_RGB = 0x80C9;
this.BLEND_DST_ALPHA = 0x80CA;
this.BLEND_SRC_ALPHA = 0x80CB;
this.CONSTANT_COLOR = 0x8001;
this.ONE_MINUS_CONSTANT_COLOR = 0x8002;
this.CONSTANT_ALPHA = 0x8003;
this.ONE_MINUS_CONSTANT_ALPHA = 0x8004;
this.BLEND_COLOR = 0x8005;
/* Buffer Objects */
this.ARRAY_BUFFER = 0x8892;
this.ELEMENT_ARRAY_BUFFER = 0x8893;
this.ARRAY_BUFFER_BINDING = 0x8894;
this.ELEMENT_ARRAY_BUFFER_BINDING = 0x8895;
this.STREAM_DRAW = 0x88E0;
this.STATIC_DRAW = 0x88E4;
this.DYNAMIC_DRAW = 0x88E8;
this.BUFFER_SIZE = 0x8764;
this.BUFFER_USAGE = 0x8765;
this.CURRENT_VERTEX_ATTRIB = 0x8626;
/* CullFaceMode */
this.FRONT = 0x0404;
this.BACK = 0x0405;
this.FRONT_AND_BACK = 0x0408;
/* DepthFunction */
/* NEVER */
/* LESS */
/* EQUAL */
/* LEQUAL */
/* GREATER */
/* NOTEQUAL */
/* GEQUAL */
/* ALWAYS */
/* EnableCap */
/* TEXTURE_2D */
this.CULL_FACE = 0x0B44;
this.BLEND = 0x0BE2;
this.DITHER = 0x0BD0;
this.STENCIL_TEST = 0x0B90;
this.DEPTH_TEST = 0x0B71;
this.SCISSOR_TEST = 0x0C11;
this.POLYGON_OFFSET_FILL = 0x8037;
this.SAMPLE_ALPHA_TO_COVERAGE = 0x809E;
this.SAMPLE_COVERAGE = 0x80A0;
/* ErrorCode */
this.NO_ERROR = 0;
this.INVALID_ENUM = 0x0500;
this.INVALID_VALUE = 0x0501;
this.INVALID_OPERATION = 0x0502;
this.OUT_OF_MEMORY = 0x0505;
/* FrontFaceDirection */
this.CW = 0x0900;
this.CCW = 0x0901;
/* GetPName */
this.LINE_WIDTH = 0x0B21;
this.ALIASED_POINT_SIZE_RANGE = 0x846D;
this.ALIASED_LINE_WIDTH_RANGE = 0x846E;
this.CULL_FACE_MODE = 0x0B45;
this.FRONT_FACE = 0x0B46;
this.DEPTH_RANGE = 0x0B70;
this.DEPTH_WRITEMASK = 0x0B72;
this.DEPTH_CLEAR_VALUE = 0x0B73;
this.DEPTH_FUNC = 0x0B74;
this.STENCIL_CLEAR_VALUE = 0x0B91;
this.STENCIL_FUNC = 0x0B92;
this.STENCIL_FAIL = 0x0B94;
this.STENCIL_PASS_DEPTH_FAIL = 0x0B95;
this.STENCIL_PASS_DEPTH_PASS = 0x0B96;
this.STENCIL_REF = 0x0B97;
this.STENCIL_VALUE_MASK = 0x0B93;
this.STENCIL_WRITEMASK = 0x0B98;
this.STENCIL_BACK_FUNC = 0x8800;
this.STENCIL_BACK_FAIL = 0x8801;
this.STENCIL_BACK_PASS_DEPTH_FAIL = 0x8802;
this.STENCIL_BACK_PASS_DEPTH_PASS = 0x8803;
this.STENCIL_BACK_REF = 0x8CA3;
this.STENCIL_BACK_VALUE_MASK = 0x8CA4;
this.STENCIL_BACK_WRITEMASK = 0x8CA5;
this.VIEWPORT = 0x0BA2;
this.SCISSOR_BOX = 0x0C10;
/* SCISSOR_TEST */
this.COLOR_CLEAR_VALUE = 0x0C22;
this.COLOR_WRITEMASK = 0x0C23;
this.UNPACK_ALIGNMENT = 0x0CF5;
this.PACK_ALIGNMENT = 0x0D05;
this.MAX_TEXTURE_SIZE = 0x0D33;
this.MAX_VIEWPORT_DIMS = 0x0D3A;
this.SUBPIXEL_BITS = 0x0D50;
this.RED_BITS = 0x0D52;
this.GREEN_BITS = 0x0D53;
this.BLUE_BITS = 0x0D54;
this.ALPHA_BITS = 0x0D55;
this.DEPTH_BITS = 0x0D56;
this.STENCIL_BITS = 0x0D57;
this.POLYGON_OFFSET_UNITS = 0x2A00;
/* POLYGON_OFFSET_FILL */
this.POLYGON_OFFSET_FACTOR = 0x8038;
this.TEXTURE_BINDING_2D = 0x8069;
this.SAMPLE_BUFFERS = 0x80A8;
this.SAMPLES = 0x80A9;
this.SAMPLE_COVERAGE_VALUE = 0x80AA;
this.SAMPLE_COVERAGE_INVERT = 0x80AB;
/* GetTextureParameter */
/* TEXTURE_MAG_FILTER */
/* TEXTURE_MIN_FILTER */
/* TEXTURE_WRAP_S */
/* TEXTURE_WRAP_T */
this.COMPRESSED_TEXTURE_FORMATS = 0x86A3;
/* HintMode */
this.DONT_CARE = 0x1100;
this.FASTEST = 0x1101;
this.NICEST = 0x1102;
/* HintTarget */
this.GENERATE_MIPMAP_HINT = 0x8192;
/* DataType */
this.BYTE = 0x1400;
this.UNSIGNED_BYTE = 0x1401;
this.SHORT = 0x1402;
this.UNSIGNED_SHORT = 0x1403;
this.INT = 0x1404;
this.UNSIGNED_INT = 0x1405;
this.FLOAT = 0x1406;
/* PixelFormat */
this.DEPTH_COMPONENT = 0x1902;
this.ALPHA = 0x1906;
this.RGB = 0x1907;
this.RGBA = 0x1908;
this.LUMINANCE = 0x1909;
this.LUMINANCE_ALPHA = 0x190A;
/* PixelType */
/* UNSIGNED_BYTE */
this.UNSIGNED_SHORT_4_4_4_4 = 0x8033;
this.UNSIGNED_SHORT_5_5_5_1 = 0x8034;
this.UNSIGNED_SHORT_5_6_5 = 0x8363;
/* Shaders */
this.FRAGMENT_SHADER = 0x8B30;
this.VERTEX_SHADER = 0x8B31;
this.MAX_VERTEX_ATTRIBS = 0x8869;
this.MAX_VERTEX_UNIFORM_VECTORS = 0x8DFB;
this.MAX_VARYING_VECTORS = 0x8DFC;
this.MAX_COMBINED_TEXTURE_IMAGE_UNITS = 0x8B4D;
this.MAX_VERTEX_TEXTURE_IMAGE_UNITS = 0x8B4C;
this.MAX_TEXTURE_IMAGE_UNITS = 0x8872;
this.MAX_FRAGMENT_UNIFORM_VECTORS = 0x8DFD;
this.SHADER_TYPE = 0x8B4F;
this.DELETE_STATUS = 0x8B80;
this.LINK_STATUS = 0x8B82;
this.VALIDATE_STATUS = 0x8B83;
this.ATTACHED_SHADERS = 0x8B85;
this.ACTIVE_UNIFORMS = 0x8B86;
this.ACTIVE_ATTRIBUTES = 0x8B89;
this.SHADING_LANGUAGE_VERSION = 0x8B8C;
this.CURRENT_PROGRAM = 0x8B8D;
/* StencilFunction */
this.NEVER = 0x0200;
this.LESS = 0x0201;
this.EQUAL = 0x0202;
this.LEQUAL = 0x0203;
this.GREATER = 0x0204;
this.NOTEQUAL = 0x0205;
this.GEQUAL = 0x0206;
this.ALWAYS = 0x0207;
/* StencilOp */
/* ZERO */
this.KEEP = 0x1E00;
this.REPLACE = 0x1E01;
this.INCR = 0x1E02;
this.DECR = 0x1E03;
this.INVERT = 0x150A;
this.INCR_WRAP = 0x8507;
this.DECR_WRAP = 0x8508;
/* StringName */
this.VENDOR = 0x1F00;
this.RENDERER = 0x1F01;
this.VERSION = 0x1F02;
/* TextureMagFilter */
this.NEAREST = 0x2600;
this.LINEAR = 0x2601;
/* TextureMinFilter */
/* NEAREST */
/* LINEAR */
this.NEAREST_MIPMAP_NEAREST = 0x2700;
this.LINEAR_MIPMAP_NEAREST = 0x2701;
this.NEAREST_MIPMAP_LINEAR = 0x2702;
this.LINEAR_MIPMAP_LINEAR = 0x2703;
/* TextureParameterName */
this.TEXTURE_MAG_FILTER = 0x2800;
this.TEXTURE_MIN_FILTER = 0x2801;
this.TEXTURE_WRAP_S = 0x2802;
this.TEXTURE_WRAP_T = 0x2803;
/* TextureTarget */
this.TEXTURE_2D = 0x0DE1;
this.TEXTURE = 0x1702;
this.TEXTURE_CUBE_MAP = 0x8513;
this.TEXTURE_BINDING_CUBE_MAP = 0x8514;
this.TEXTURE_CUBE_MAP_POSITIVE_X = 0x8515;
this.TEXTURE_CUBE_MAP_NEGATIVE_X = 0x8516;
this.TEXTURE_CUBE_MAP_POSITIVE_Y = 0x8517;
this.TEXTURE_CUBE_MAP_NEGATIVE_Y = 0x8518;
this.TEXTURE_CUBE_MAP_POSITIVE_Z = 0x8519;
this.TEXTURE_CUBE_MAP_NEGATIVE_Z = 0x851A;
this.MAX_CUBE_MAP_TEXTURE_SIZE = 0x851C;
/* TextureUnit */
this.TEXTURE0 = 0x84C0;
this.TEXTURE1 = 0x84C1;
this.TEXTURE2 = 0x84C2;
this.TEXTURE3 = 0x84C3;
this.TEXTURE4 = 0x84C4;
this.TEXTURE5 = 0x84C5;
this.TEXTURE6 = 0x84C6;
this.TEXTURE7 = 0x84C7;
this.TEXTURE8 = 0x84C8;
this.TEXTURE9 = 0x84C9;
this.TEXTURE10 = 0x84CA;
this.TEXTURE11 = 0x84CB;
this.TEXTURE12 = 0x84CC;
this.TEXTURE13 = 0x84CD;
this.TEXTURE14 = 0x84CE;
this.TEXTURE15 = 0x84CF;
this.TEXTURE16 = 0x84D0;
this.TEXTURE17 = 0x84D1;
this.TEXTURE18 = 0x84D2;
this.TEXTURE19 = 0x84D3;
this.TEXTURE20 = 0x84D4;
this.TEXTURE21 = 0x84D5;
this.TEXTURE22 = 0x84D6;
this.TEXTURE23 = 0x84D7;
this.TEXTURE24 = 0x84D8;
this.TEXTURE25 = 0x84D9;
this.TEXTURE26 = 0x84DA;
this.TEXTURE27 = 0x84DB;
this.TEXTURE28 = 0x84DC;
this.TEXTURE29 = 0x84DD;
this.TEXTURE30 = 0x84DE;
this.TEXTURE31 = 0x84DF;
this.ACTIVE_TEXTURE = 0x84E0;
/* TextureWrapMode */
this.REPEAT = 0x2901;
this.CLAMP_TO_EDGE = 0x812F;
this.MIRRORED_REPEAT = 0x8370;
/* Uniform Types */
this.FLOAT_VEC2 = 0x8B50;
this.FLOAT_VEC3 = 0x8B51;
this.FLOAT_VEC4 = 0x8B52;
this.INT_VEC2 = 0x8B53;
this.INT_VEC3 = 0x8B54;
this.INT_VEC4 = 0x8B55;
this.BOOL = 0x8B56;
this.BOOL_VEC2 = 0x8B57;
this.BOOL_VEC3 = 0x8B58;
this.BOOL_VEC4 = 0x8B59;
this.FLOAT_MAT2 = 0x8B5A;
this.FLOAT_MAT3 = 0x8B5B;
this.FLOAT_MAT4 = 0x8B5C;
this.SAMPLER_2D = 0x8B5E;
this.SAMPLER_CUBE = 0x8B60;
/* Vertex Arrays */
this.VERTEX_ATTRIB_ARRAY_ENABLED = 0x8622;
this.VERTEX_ATTRIB_ARRAY_SIZE = 0x8623;
this.VERTEX_ATTRIB_ARRAY_STRIDE = 0x8624;
this.VERTEX_ATTRIB_ARRAY_TYPE = 0x8625;
this.VERTEX_ATTRIB_ARRAY_NORMALIZED = 0x886A;
this.VERTEX_ATTRIB_ARRAY_POINTER = 0x8645;
this.VERTEX_ATTRIB_ARRAY_BUFFER_BINDING = 0x889F;
/* Read Format */
this.IMPLEMENTATION_COLOR_READ_TYPE = 0x8B9A;
this.IMPLEMENTATION_COLOR_READ_FORMAT = 0x8B9B;
/* Shader Source */
this.COMPILE_STATUS = 0x8B81;
/* Shader Precision-Specified Types */
this.LOW_FLOAT = 0x8DF0;
this.MEDIUM_FLOAT = 0x8DF1;
this.HIGH_FLOAT = 0x8DF2;
this.LOW_INT = 0x8DF3;
this.MEDIUM_INT = 0x8DF4;
this.HIGH_INT = 0x8DF5;
/* Framebuffer Object. */
this.FRAMEBUFFER = 0x8D40;
this.RENDERBUFFER = 0x8D41;
this.RGBA4 = 0x8056;
this.RGB5_A1 = 0x8057;
this.RGB565 = 0x8D62;
this.DEPTH_COMPONENT16 = 0x81A5;
this.STENCIL_INDEX = 0x1901;
this.STENCIL_INDEX8 = 0x8D48;
this.DEPTH_STENCIL = 0x84F9;
this.RENDERBUFFER_WIDTH = 0x8D42;
this.RENDERBUFFER_HEIGHT = 0x8D43;
this.RENDERBUFFER_INTERNAL_FORMAT = 0x8D44;
this.RENDERBUFFER_RED_SIZE = 0x8D50;
this.RENDERBUFFER_GREEN_SIZE = 0x8D51;
this.RENDERBUFFER_BLUE_SIZE = 0x8D52;
this.RENDERBUFFER_ALPHA_SIZE = 0x8D53;
this.RENDERBUFFER_DEPTH_SIZE = 0x8D54;
this.RENDERBUFFER_STENCIL_SIZE = 0x8D55;
this.FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE = 0x8CD0;
this.FRAMEBUFFER_ATTACHMENT_OBJECT_NAME = 0x8CD1;
this.FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL = 0x8CD2;
this.FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE = 0x8CD3;
this.COLOR_ATTACHMENT0 = 0x8CE0;
this.DEPTH_ATTACHMENT = 0x8D00;
this.STENCIL_ATTACHMENT = 0x8D20;
this.DEPTH_STENCIL_ATTACHMENT = 0x821A;
this.NONE = 0;
this.FRAMEBUFFER_COMPLETE = 0x8CD5;
this.FRAMEBUFFER_INCOMPLETE_ATTACHMENT = 0x8CD6;
this.FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT = 0x8CD7;
this.FRAMEBUFFER_INCOMPLETE_DIMENSIONS = 0x8CD9;
this.FRAMEBUFFER_UNSUPPORTED = 0x8CDD;
this.FRAMEBUFFER_BINDING = 0x8CA6;
this.RENDERBUFFER_BINDING = 0x8CA7;
this.MAX_RENDERBUFFER_SIZE = 0x84E8;
this.INVALID_FRAMEBUFFER_OPERATION = 0x0506;
/* WebGL-specific enums */
this.UNPACK_FLIP_Y_WEBGL = 0x9240;
this.UNPACK_PREMULTIPLY_ALPHA_WEBGL = 0x9241;
this.CONTEXT_LOST_WEBGL = 0x9242;
this.UNPACK_COLORSPACE_CONVERSION_WEBGL = 0x9243;
this.BROWSER_DEFAULT_WEBGL = 0x9244;
//==========
// Functions
//==========
var that = this;
// Helpers
this.onmessage = function(msg) {
dump('worker GL got ' + JSON.stringify(msg) + '\n');
switch(msg.op) {
case 'setPrefetchedParameters': {
that.prefetchedParameters = msg.data;
break;
}
default: throw 'weird gl onmessage ' + JSON.stringify(msg);
}
};
// GL
function revname(name) {
for (var x in that) if (that[x] === name) return x;
return null;
}
this.getParameter = function(name) {
assert(name);
if (name in this.prefetchedParameters) return this.prefetchedParameters[name];
throw 'TODO: get parameter ' + name + ' : ' + revname(name);
};
}
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