| /** |
| * @license |
| * Copyright 2013 The Emscripten Authors |
| * SPDX-License-Identifier: MIT |
| */ |
| |
| function headlessCanvas() { |
| var that = this; |
| var ret = { |
| headless: true, |
| getContext: function(which) { |
| switch (which) { |
| case 'webgl': |
| case 'experimental-webgl': { |
| return { |
| /* ClearBufferMask */ |
| DEPTH_BUFFER_BIT : 0x00000100, |
| STENCIL_BUFFER_BIT : 0x00000400, |
| COLOR_BUFFER_BIT : 0x00004000, |
| |
| /* BeginMode */ |
| POINTS : 0x0000, |
| LINES : 0x0001, |
| LINE_LOOP : 0x0002, |
| LINE_STRIP : 0x0003, |
| TRIANGLES : 0x0004, |
| TRIANGLE_STRIP : 0x0005, |
| TRIANGLE_FAN : 0x0006, |
| |
| /* AlphaFunction (not supported in ES20) */ |
| /* NEVER */ |
| /* LESS */ |
| /* EQUAL */ |
| /* LEQUAL */ |
| /* GREATER */ |
| /* NOTEQUAL */ |
| /* GEQUAL */ |
| /* ALWAYS */ |
| |
| /* BlendingFactorDest */ |
| ZERO : 0, |
| ONE : 1, |
| SRC_COLOR : 0x0300, |
| ONE_MINUS_SRC_COLOR : 0x0301, |
| SRC_ALPHA : 0x0302, |
| ONE_MINUS_SRC_ALPHA : 0x0303, |
| DST_ALPHA : 0x0304, |
| ONE_MINUS_DST_ALPHA : 0x0305, |
| |
| /* BlendingFactorSrc */ |
| /* ZERO */ |
| /* ONE */ |
| DST_COLOR : 0x0306, |
| ONE_MINUS_DST_COLOR : 0x0307, |
| SRC_ALPHA_SATURATE : 0x0308, |
| /* SRC_ALPHA */ |
| /* ONE_MINUS_SRC_ALPHA */ |
| /* DST_ALPHA */ |
| /* ONE_MINUS_DST_ALPHA */ |
| |
| /* BlendEquationSeparate */ |
| FUNC_ADD : 0x8006, |
| BLEND_EQUATION : 0x8009, |
| BLEND_EQUATION_RGB : 0x8009, /* same as BLEND_EQUATION */ |
| BLEND_EQUATION_ALPHA : 0x883D, |
| |
| /* BlendSubtract */ |
| FUNC_SUBTRACT : 0x800A, |
| FUNC_REVERSE_SUBTRACT : 0x800B, |
| |
| /* Separate Blend Functions */ |
| BLEND_DST_RGB : 0x80C8, |
| BLEND_SRC_RGB : 0x80C9, |
| BLEND_DST_ALPHA : 0x80CA, |
| BLEND_SRC_ALPHA : 0x80CB, |
| CONSTANT_COLOR : 0x8001, |
| ONE_MINUS_CONSTANT_COLOR : 0x8002, |
| CONSTANT_ALPHA : 0x8003, |
| ONE_MINUS_CONSTANT_ALPHA : 0x8004, |
| BLEND_COLOR : 0x8005, |
| |
| /* Buffer Objects */ |
| ARRAY_BUFFER : 0x8892, |
| ELEMENT_ARRAY_BUFFER : 0x8893, |
| ARRAY_BUFFER_BINDING : 0x8894, |
| ELEMENT_ARRAY_BUFFER_BINDING : 0x8895, |
| |
| STREAM_DRAW : 0x88E0, |
| STATIC_DRAW : 0x88E4, |
| DYNAMIC_DRAW : 0x88E8, |
| |
| BUFFER_SIZE : 0x8764, |
| BUFFER_USAGE : 0x8765, |
| |
| CURRENT_VERTEX_ATTRIB : 0x8626, |
| |
| /* CullFaceMode */ |
| FRONT : 0x0404, |
| BACK : 0x0405, |
| FRONT_AND_BACK : 0x0408, |
| |
| /* DepthFunction */ |
| /* NEVER */ |
| /* LESS */ |
| /* EQUAL */ |
| /* LEQUAL */ |
| /* GREATER */ |
| /* NOTEQUAL */ |
| /* GEQUAL */ |
| /* ALWAYS */ |
| |
| /* EnableCap */ |
| /* TEXTURE_2D */ |
| CULL_FACE : 0x0B44, |
| BLEND : 0x0BE2, |
| DITHER : 0x0BD0, |
| STENCIL_TEST : 0x0B90, |
| DEPTH_TEST : 0x0B71, |
| SCISSOR_TEST : 0x0C11, |
| POLYGON_OFFSET_FILL : 0x8037, |
| SAMPLE_ALPHA_TO_COVERAGE : 0x809E, |
| SAMPLE_COVERAGE : 0x80A0, |
| |
| /* ErrorCode */ |
| NO_ERROR : 0, |
| INVALID_ENUM : 0x0500, |
| INVALID_VALUE : 0x0501, |
| INVALID_OPERATION : 0x0502, |
| OUT_OF_MEMORY : 0x0505, |
| |
| /* FrontFaceDirection */ |
| CW : 0x0900, |
| CCW : 0x0901, |
| |
| /* GetPName */ |
| LINE_WIDTH : 0x0B21, |
| ALIASED_POINT_SIZE_RANGE : 0x846D, |
| ALIASED_LINE_WIDTH_RANGE : 0x846E, |
| CULL_FACE_MODE : 0x0B45, |
| FRONT_FACE : 0x0B46, |
| DEPTH_RANGE : 0x0B70, |
| DEPTH_WRITEMASK : 0x0B72, |
| DEPTH_CLEAR_VALUE : 0x0B73, |
| DEPTH_FUNC : 0x0B74, |
| STENCIL_CLEAR_VALUE : 0x0B91, |
| STENCIL_FUNC : 0x0B92, |
| STENCIL_FAIL : 0x0B94, |
| STENCIL_PASS_DEPTH_FAIL : 0x0B95, |
| STENCIL_PASS_DEPTH_PASS : 0x0B96, |
| STENCIL_REF : 0x0B97, |
| STENCIL_VALUE_MASK : 0x0B93, |
| STENCIL_WRITEMASK : 0x0B98, |
| STENCIL_BACK_FUNC : 0x8800, |
| STENCIL_BACK_FAIL : 0x8801, |
| STENCIL_BACK_PASS_DEPTH_FAIL : 0x8802, |
| STENCIL_BACK_PASS_DEPTH_PASS : 0x8803, |
| STENCIL_BACK_REF : 0x8CA3, |
| STENCIL_BACK_VALUE_MASK : 0x8CA4, |
| STENCIL_BACK_WRITEMASK : 0x8CA5, |
| VIEWPORT : 0x0BA2, |
| SCISSOR_BOX : 0x0C10, |
| /* SCISSOR_TEST */ |
| COLOR_CLEAR_VALUE : 0x0C22, |
| COLOR_WRITEMASK : 0x0C23, |
| UNPACK_ALIGNMENT : 0x0CF5, |
| PACK_ALIGNMENT : 0x0D05, |
| MAX_TEXTURE_SIZE : 0x0D33, |
| MAX_VIEWPORT_DIMS : 0x0D3A, |
| SUBPIXEL_BITS : 0x0D50, |
| RED_BITS : 0x0D52, |
| GREEN_BITS : 0x0D53, |
| BLUE_BITS : 0x0D54, |
| ALPHA_BITS : 0x0D55, |
| DEPTH_BITS : 0x0D56, |
| STENCIL_BITS : 0x0D57, |
| POLYGON_OFFSET_UNITS : 0x2A00, |
| /* POLYGON_OFFSET_FILL */ |
| POLYGON_OFFSET_FACTOR : 0x8038, |
| TEXTURE_BINDING_2D : 0x8069, |
| SAMPLE_BUFFERS : 0x80A8, |
| SAMPLES : 0x80A9, |
| SAMPLE_COVERAGE_VALUE : 0x80AA, |
| SAMPLE_COVERAGE_INVERT : 0x80AB, |
| |
| /* GetTextureParameter */ |
| /* TEXTURE_MAG_FILTER */ |
| /* TEXTURE_MIN_FILTER */ |
| /* TEXTURE_WRAP_S */ |
| /* TEXTURE_WRAP_T */ |
| |
| COMPRESSED_TEXTURE_FORMATS : 0x86A3, |
| |
| /* HintMode */ |
| DONT_CARE : 0x1100, |
| FASTEST : 0x1101, |
| NICEST : 0x1102, |
| |
| /* HintTarget */ |
| GENERATE_MIPMAP_HINT : 0x8192, |
| |
| /* DataType */ |
| BYTE : 0x1400, |
| UNSIGNED_BYTE : 0x1401, |
| SHORT : 0x1402, |
| UNSIGNED_SHORT : 0x1403, |
| INT : 0x1404, |
| UNSIGNED_INT : 0x1405, |
| FLOAT : 0x1406, |
| |
| /* PixelFormat */ |
| DEPTH_COMPONENT : 0x1902, |
| ALPHA : 0x1906, |
| RGB : 0x1907, |
| RGBA : 0x1908, |
| LUMINANCE : 0x1909, |
| LUMINANCE_ALPHA : 0x190A, |
| |
| /* PixelType */ |
| /* UNSIGNED_BYTE */ |
| UNSIGNED_SHORT_4_4_4_4 : 0x8033, |
| UNSIGNED_SHORT_5_5_5_1 : 0x8034, |
| UNSIGNED_SHORT_5_6_5 : 0x8363, |
| |
| /* Shaders */ |
| FRAGMENT_SHADER : 0x8B30, |
| VERTEX_SHADER : 0x8B31, |
| MAX_VERTEX_ATTRIBS : 0x8869, |
| MAX_VERTEX_UNIFORM_VECTORS : 0x8DFB, |
| MAX_VARYING_VECTORS : 0x8DFC, |
| MAX_COMBINED_TEXTURE_IMAGE_UNITS : 0x8B4D, |
| MAX_VERTEX_TEXTURE_IMAGE_UNITS : 0x8B4C, |
| MAX_TEXTURE_IMAGE_UNITS : 0x8872, |
| MAX_FRAGMENT_UNIFORM_VECTORS : 0x8DFD, |
| SHADER_TYPE : 0x8B4F, |
| DELETE_STATUS : 0x8B80, |
| LINK_STATUS : 0x8B82, |
| VALIDATE_STATUS : 0x8B83, |
| ATTACHED_SHADERS : 0x8B85, |
| ACTIVE_UNIFORMS : 0x8B86, |
| ACTIVE_ATTRIBUTES : 0x8B89, |
| SHADING_LANGUAGE_VERSION : 0x8B8C, |
| CURRENT_PROGRAM : 0x8B8D, |
| |
| /* StencilFunction */ |
| NEVER : 0x0200, |
| LESS : 0x0201, |
| EQUAL : 0x0202, |
| LEQUAL : 0x0203, |
| GREATER : 0x0204, |
| NOTEQUAL : 0x0205, |
| GEQUAL : 0x0206, |
| ALWAYS : 0x0207, |
| |
| /* StencilOp */ |
| /* ZERO */ |
| KEEP : 0x1E00, |
| REPLACE : 0x1E01, |
| INCR : 0x1E02, |
| DECR : 0x1E03, |
| INVERT : 0x150A, |
| INCR_WRAP : 0x8507, |
| DECR_WRAP : 0x8508, |
| |
| /* StringName */ |
| VENDOR : 0x1F00, |
| RENDERER : 0x1F01, |
| VERSION : 0x1F02, |
| |
| /* TextureMagFilter */ |
| NEAREST : 0x2600, |
| LINEAR : 0x2601, |
| |
| /* TextureMinFilter */ |
| /* NEAREST */ |
| /* LINEAR */ |
| NEAREST_MIPMAP_NEAREST : 0x2700, |
| LINEAR_MIPMAP_NEAREST : 0x2701, |
| NEAREST_MIPMAP_LINEAR : 0x2702, |
| LINEAR_MIPMAP_LINEAR : 0x2703, |
| |
| /* TextureParameterName */ |
| TEXTURE_MAG_FILTER : 0x2800, |
| TEXTURE_MIN_FILTER : 0x2801, |
| TEXTURE_WRAP_S : 0x2802, |
| TEXTURE_WRAP_T : 0x2803, |
| |
| /* TextureTarget */ |
| TEXTURE_2D : 0x0DE1, |
| TEXTURE : 0x1702, |
| |
| TEXTURE_CUBE_MAP : 0x8513, |
| TEXTURE_BINDING_CUBE_MAP : 0x8514, |
| TEXTURE_CUBE_MAP_POSITIVE_X : 0x8515, |
| TEXTURE_CUBE_MAP_NEGATIVE_X : 0x8516, |
| TEXTURE_CUBE_MAP_POSITIVE_Y : 0x8517, |
| TEXTURE_CUBE_MAP_NEGATIVE_Y : 0x8518, |
| TEXTURE_CUBE_MAP_POSITIVE_Z : 0x8519, |
| TEXTURE_CUBE_MAP_NEGATIVE_Z : 0x851A, |
| MAX_CUBE_MAP_TEXTURE_SIZE : 0x851C, |
| |
| /* TextureUnit */ |
| TEXTURE0 : 0x84C0, |
| TEXTURE1 : 0x84C1, |
| TEXTURE2 : 0x84C2, |
| TEXTURE3 : 0x84C3, |
| TEXTURE4 : 0x84C4, |
| TEXTURE5 : 0x84C5, |
| TEXTURE6 : 0x84C6, |
| TEXTURE7 : 0x84C7, |
| TEXTURE8 : 0x84C8, |
| TEXTURE9 : 0x84C9, |
| TEXTURE10 : 0x84CA, |
| TEXTURE11 : 0x84CB, |
| TEXTURE12 : 0x84CC, |
| TEXTURE13 : 0x84CD, |
| TEXTURE14 : 0x84CE, |
| TEXTURE15 : 0x84CF, |
| TEXTURE16 : 0x84D0, |
| TEXTURE17 : 0x84D1, |
| TEXTURE18 : 0x84D2, |
| TEXTURE19 : 0x84D3, |
| TEXTURE20 : 0x84D4, |
| TEXTURE21 : 0x84D5, |
| TEXTURE22 : 0x84D6, |
| TEXTURE23 : 0x84D7, |
| TEXTURE24 : 0x84D8, |
| TEXTURE25 : 0x84D9, |
| TEXTURE26 : 0x84DA, |
| TEXTURE27 : 0x84DB, |
| TEXTURE28 : 0x84DC, |
| TEXTURE29 : 0x84DD, |
| TEXTURE30 : 0x84DE, |
| TEXTURE31 : 0x84DF, |
| ACTIVE_TEXTURE : 0x84E0, |
| |
| /* TextureWrapMode */ |
| REPEAT : 0x2901, |
| CLAMP_TO_EDGE : 0x812F, |
| MIRRORED_REPEAT : 0x8370, |
| |
| /* Uniform Types */ |
| FLOAT_VEC2 : 0x8B50, |
| FLOAT_VEC3 : 0x8B51, |
| FLOAT_VEC4 : 0x8B52, |
| INT_VEC2 : 0x8B53, |
| INT_VEC3 : 0x8B54, |
| INT_VEC4 : 0x8B55, |
| BOOL : 0x8B56, |
| BOOL_VEC2 : 0x8B57, |
| BOOL_VEC3 : 0x8B58, |
| BOOL_VEC4 : 0x8B59, |
| FLOAT_MAT2 : 0x8B5A, |
| FLOAT_MAT3 : 0x8B5B, |
| FLOAT_MAT4 : 0x8B5C, |
| SAMPLER_2D : 0x8B5E, |
| SAMPLER_CUBE : 0x8B60, |
| |
| /* Vertex Arrays */ |
| VERTEX_ATTRIB_ARRAY_ENABLED : 0x8622, |
| VERTEX_ATTRIB_ARRAY_SIZE : 0x8623, |
| VERTEX_ATTRIB_ARRAY_STRIDE : 0x8624, |
| VERTEX_ATTRIB_ARRAY_TYPE : 0x8625, |
| VERTEX_ATTRIB_ARRAY_NORMALIZED : 0x886A, |
| VERTEX_ATTRIB_ARRAY_POINTER : 0x8645, |
| VERTEX_ATTRIB_ARRAY_BUFFER_BINDING : 0x889F, |
| |
| /* Shader Source */ |
| COMPILE_STATUS : 0x8B81, |
| |
| /* Shader Precision-Specified Types */ |
| LOW_FLOAT : 0x8DF0, |
| MEDIUM_FLOAT : 0x8DF1, |
| HIGH_FLOAT : 0x8DF2, |
| LOW_INT : 0x8DF3, |
| MEDIUM_INT : 0x8DF4, |
| HIGH_INT : 0x8DF5, |
| |
| /* Framebuffer Object. */ |
| FRAMEBUFFER : 0x8D40, |
| RENDERBUFFER : 0x8D41, |
| |
| RGBA4 : 0x8056, |
| RGB5_A1 : 0x8057, |
| RGB565 : 0x8D62, |
| DEPTH_COMPONENT16 : 0x81A5, |
| STENCIL_INDEX : 0x1901, |
| STENCIL_INDEX8 : 0x8D48, |
| DEPTH_STENCIL : 0x84F9, |
| |
| RENDERBUFFER_WIDTH : 0x8D42, |
| RENDERBUFFER_HEIGHT : 0x8D43, |
| RENDERBUFFER_INTERNAL_FORMAT : 0x8D44, |
| RENDERBUFFER_RED_SIZE : 0x8D50, |
| RENDERBUFFER_GREEN_SIZE : 0x8D51, |
| RENDERBUFFER_BLUE_SIZE : 0x8D52, |
| RENDERBUFFER_ALPHA_SIZE : 0x8D53, |
| RENDERBUFFER_DEPTH_SIZE : 0x8D54, |
| RENDERBUFFER_STENCIL_SIZE : 0x8D55, |
| |
| FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE : 0x8CD0, |
| FRAMEBUFFER_ATTACHMENT_OBJECT_NAME : 0x8CD1, |
| FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL : 0x8CD2, |
| FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE : 0x8CD3, |
| |
| COLOR_ATTACHMENT0 : 0x8CE0, |
| DEPTH_ATTACHMENT : 0x8D00, |
| STENCIL_ATTACHMENT : 0x8D20, |
| DEPTH_STENCIL_ATTACHMENT : 0x821A, |
| |
| NONE : 0, |
| |
| FRAMEBUFFER_COMPLETE : 0x8CD5, |
| FRAMEBUFFER_INCOMPLETE_ATTACHMENT : 0x8CD6, |
| FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT : 0x8CD7, |
| FRAMEBUFFER_INCOMPLETE_DIMENSIONS : 0x8CD9, |
| FRAMEBUFFER_UNSUPPORTED : 0x8CDD, |
| |
| FRAMEBUFFER_BINDING : 0x8CA6, |
| RENDERBUFFER_BINDING : 0x8CA7, |
| MAX_RENDERBUFFER_SIZE : 0x84E8, |
| |
| INVALID_FRAMEBUFFER_OPERATION : 0x0506, |
| |
| /* WebGL-specific enums */ |
| UNPACK_FLIP_Y_WEBGL : 0x9240, |
| UNPACK_PREMULTIPLY_ALPHA_WEBGL : 0x9241, |
| CONTEXT_LOST_WEBGL : 0x9242, |
| UNPACK_COLORSPACE_CONVERSION_WEBGL : 0x9243, |
| BROWSER_DEFAULT_WEBGL : 0x9244, |
| |
| items: {}, |
| id: 0, |
| getExtension: function() { return 1 }, |
| createBuffer: function() { |
| var id = this.id++; |
| this.items[id] = { |
| which: 'buffer', |
| }; |
| return id; |
| }, |
| deleteBuffer: function(){}, |
| bindBuffer: function(){}, |
| bufferData: function(){}, |
| getParameter: function(pname) { |
| switch (pname) { |
| case /* GL_VENDOR */ 0x1F00: return 'FakeShellGLVendor'; |
| case /* GL_RENDERER */ 0x1F01: return 'FakeShellGLRenderer'; |
| case /* GL_VERSION */ 0x1F02: return '0.0.1'; |
| case /* GL_MAX_TEXTURE_SIZE */ 0x0D33: return 16384; |
| case /* GL_MAX_CUBE_MAP_TEXTURE_SIZE */ 0x851C: return 16384; |
| case /* GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT */ 0x84FF: return 16; |
| case /* GL_MAX_TEXTURE_IMAGE_UNITS_NV */ 0x8872: return 16; |
| case /* GL_MAX_VERTEX_UNIFORM_VECTORS */ 0x8DFB: return 4096; |
| case /* GL_MAX_FRAGMENT_UNIFORM_VECTORS */ 0x8DFD: return 4096; |
| case /* GL_MAX_VARYING_VECTORS */ 0x8DFC: return 32; |
| case /* GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS */ 0x8B4D: return 32; |
| case /* GL_ARRAY_BUFFER_BINDING */ 0x8894: return 0; |
| default: console.log('getParameter ' + pname + '?'); return 0; |
| } |
| }, |
| getSupportedExtensions: function() { |
| return ["OES_texture_float", "OES_standard_derivatives", "EXT_texture_filter_anisotropic", "MOZ_EXT_texture_filter_anisotropic", "MOZ_WEBGL_lose_context", "MOZ_WEBGL_compressed_texture_s3tc", "MOZ_WEBGL_depth_texture"]; |
| }, |
| createShader: function(type) { |
| var id = this.id++; |
| this.items[id] = { |
| which: 'shader', |
| type: type, |
| }; |
| return id; |
| }, |
| getShaderParameter: function(shader, pname) { |
| switch (pname) { |
| case /* GL_SHADER_TYPE */ 0x8B4F: return this.items[shader].type; |
| case /* GL_COMPILE_STATUS */ 0x8B81: return true; |
| default: throw 'getShaderParameter ' + pname; |
| } |
| }, |
| shaderSource: function(){}, |
| compileShader: function(){}, |
| createProgram: function() { |
| var id = this.id++; |
| this.items[id] = { |
| which: 'program', |
| shaders: [], |
| }; |
| return id; |
| }, |
| attachShader: function(program, shader) { |
| this.items[program].shaders.push(shader); |
| }, |
| bindAttribLocation: function(){}, |
| linkProgram: function(){}, |
| getProgramParameter: function(program, pname) { |
| switch (pname) { |
| case /* LINK_STATUS */ 0x8B82: return true; |
| case /* ACTIVE_UNIFORMS */ 0x8B86: return 4; |
| default: throw 'getProgramParameter ' + pname; |
| } |
| }, |
| deleteShader: function(){}, |
| deleteProgram: function(){}, |
| viewport: function(){}, |
| clearColor: function(){}, |
| clearDepth: function(){}, |
| depthFunc: function(){}, |
| enable: function(){}, |
| disable: function(){}, |
| frontFace: function(){}, |
| cullFace: function(){}, |
| activeTexture: function(){}, |
| createTexture: function() { |
| var id = this.id++; |
| this.items[id] = { |
| which: 'texture', |
| }; |
| return id; |
| }, |
| deleteTexture: function(){}, |
| boundTextures: {}, |
| bindTexture: function(target, texture) { |
| this.boundTextures[target] = texture; |
| }, |
| texParameteri: function(){}, |
| pixelStorei: function(){}, |
| texImage2D: function(){}, |
| compressedTexImage2D: function(){}, |
| useProgram: function(){}, |
| getUniformLocation: function() { |
| return null; |
| }, |
| getActiveUniform: function(program, index) { |
| return { |
| size: 1, |
| type: /* INT_VEC3 */ 0x8B54, |
| name: 'activeUniform' + index, |
| }; |
| }, |
| clear: function(){}, |
| uniform4fv: function(){}, |
| uniform1i: function(){}, |
| getAttribLocation: function() { return 1 }, |
| vertexAttribPointer: function(){}, |
| enableVertexAttribArray: function(){}, |
| disableVertexAttribArray: function(){}, |
| drawElements: function(){}, |
| drawArrays: function(){}, |
| depthMask: function(){}, |
| depthRange: function(){}, |
| bufferSubData: function(){}, |
| blendFunc: function(){}, |
| createFramebuffer: function() { |
| var id = this.id++; |
| this.items[id] = { |
| which: 'framebuffer', |
| shaders: [], |
| }; |
| return id; |
| }, |
| bindFramebuffer: function(){}, |
| framebufferTexture2D: function(){}, |
| checkFramebufferStatus: function() { |
| return /* FRAMEBUFFER_COMPLETE */ 0x8CD5; |
| }, |
| createRenderbuffer: function() { |
| var id = this.id++; |
| this.items[id] = { |
| which: 'renderbuffer', |
| shaders: [], |
| }; |
| return id; |
| }, |
| bindRenderbuffer: function(){}, |
| renderbufferStorage: function(){}, |
| framebufferRenderbuffer: function(){}, |
| scissor: function(){}, |
| colorMask: function(){}, |
| lineWidth: function(){}, |
| vertexAttrib4fv: function(){}, |
| }; |
| } |
| case '2d': { |
| return { |
| drawImage: function(){}, |
| getImageData: function(x, y, w, h) { |
| return { |
| width: w, |
| height: h, |
| data: new Uint8ClampedArray(w*h), |
| }; |
| }, |
| save: function(){}, |
| restore: function(){}, |
| fillRect: function(){}, |
| measureText: function() { return 10 }, |
| fillText: function(){}, |
| }; |
| } |
| default: throw 'canvas.getContext: ' + which; |
| } |
| }, |
| requestPointerLock: function() { |
| document.pointerLockElement = document.getElementById('canvas'); |
| window.setTimeout(function() { |
| document.callEventListeners('pointerlockchange'); |
| }); |
| }, |
| exitPointerLock: function(){}, |
| style: { |
| setProperty: function() {}, |
| removeProperty: function() {}, |
| }, |
| eventListeners: {}, |
| addEventListener: function(){}, |
| removeEventListener: function(){}, |
| requestFullscreen: function() { |
| document.fullscreenElement = document.getElementById('canvas'); |
| window.setTimeout(function() { |
| document.callEventListeners('fullscreenchange'); |
| }); |
| }, |
| offsetTop: 0, |
| offsetLeft: 0, |
| // generics |
| classList: { |
| add: function(){}, |
| remove: function(){}, |
| }, |
| insertBefore: function(){}, |
| }; |
| ret.parentNode = ret; |
| return ret; |
| } |
| |
