| 1 |
- {"ast":null,"code":"import { WebGPUShaderProcessingContext } from \"./webgpuShaderProcessingContext.js\";\nimport { Logger } from \"../../Misc/logger.js\";\nimport { WebGPUShaderProcessor } from \"./webgpuShaderProcessor.js\";\nimport { RemoveComments, InjectStartingAndEndingCode } from \"../../Misc/codeStringParsingTools.js\";\nimport \"../../ShadersWGSL/ShadersInclude/bakedVertexAnimationDeclaration.js\";\nimport \"../../ShadersWGSL/ShadersInclude/bakedVertexAnimation.js\";\nimport \"../../ShadersWGSL/ShadersInclude/instancesDeclaration.js\";\nimport \"../../ShadersWGSL/ShadersInclude/instancesVertex.js\";\nimport \"../../ShadersWGSL/ShadersInclude/helperFunctions.js\";\nimport \"../../ShadersWGSL/ShadersInclude/fresnelFunction.js\";\nimport \"../../ShadersWGSL/ShadersInclude/meshUboDeclaration.js\";\nimport \"../../ShadersWGSL/ShadersInclude/sceneUboDeclaration.js\";\nimport \"../../ShadersWGSL/ShadersInclude/decalFragment.js\";\nconst builtInName_frag_depth = \"fragmentOutputs.fragDepth\";\nconst leftOverVarName = \"uniforms\";\nconst internalsVarName = \"internals\";\nconst gpuTextureViewDimensionByWebGPUTextureFunction = {\n texture_1d: \"1d\" /* WebGPUConstants.TextureViewDimension.E1d */,\n texture_2d: \"2d\" /* WebGPUConstants.TextureViewDimension.E2d */,\n texture_2d_array: \"2d-array\" /* WebGPUConstants.TextureViewDimension.E2dArray */,\n texture_3d: \"3d\" /* WebGPUConstants.TextureViewDimension.E3d */,\n texture_cube: \"cube\" /* WebGPUConstants.TextureViewDimension.Cube */,\n texture_cube_array: \"cube-array\" /* WebGPUConstants.TextureViewDimension.CubeArray */,\n texture_multisampled_2d: \"2d\" /* WebGPUConstants.TextureViewDimension.E2d */,\n texture_depth_2d: \"2d\" /* WebGPUConstants.TextureViewDimension.E2d */,\n texture_depth_2d_array: \"2d-array\" /* WebGPUConstants.TextureViewDimension.E2dArray */,\n texture_depth_cube: \"cube\" /* WebGPUConstants.TextureViewDimension.Cube */,\n texture_depth_cube_array: \"cube-array\" /* WebGPUConstants.TextureViewDimension.CubeArray */,\n texture_depth_multisampled_2d: \"2d\" /* WebGPUConstants.TextureViewDimension.E2d */,\n texture_storage_1d: \"1d\" /* WebGPUConstants.TextureViewDimension.E1d */,\n texture_storage_2d: \"2d\" /* WebGPUConstants.TextureViewDimension.E2d */,\n texture_storage_2d_array: \"2d-array\" /* WebGPUConstants.TextureViewDimension.E2dArray */,\n texture_storage_3d: \"3d\" /* WebGPUConstants.TextureViewDimension.E3d */,\n texture_external: null\n};\n/** @internal */\nexport class WebGPUShaderProcessorWGSL extends WebGPUShaderProcessor {\n constructor() {\n super(...arguments);\n this.shaderLanguage = 1 /* ShaderLanguage.WGSL */;\n this.uniformRegexp = /uniform\\s+(\\w+)\\s*:\\s*(.+)\\s*;/;\n this.textureRegexp = /var\\s+(\\w+)\\s*:\\s*((array<\\s*)?(texture_\\w+)\\s*(<\\s*(.+)\\s*>)?\\s*(,\\s*\\w+\\s*>\\s*)?);/;\n this.noPrecision = true;\n this.pureMode = false;\n }\n preProcessor(code, defines, preProcessors, isFragment, processingContext) {\n // Convert defines into const\n for (const key in preProcessors) {\n if (key === \"__VERSION__\") {\n continue;\n }\n const value = preProcessors[key];\n if (!isNaN(parseInt(value)) || !isNaN(parseFloat(value))) {\n code = `const ${key} = ${value};\\n` + code;\n }\n }\n return code;\n }\n _getArraySize(name, uniformType, preProcessors) {\n let length = 0;\n const endArray = uniformType.lastIndexOf(\">\");\n if (uniformType.indexOf(\"array\") >= 0 && endArray > 0) {\n let startArray = endArray;\n while (startArray > 0 && uniformType.charAt(startArray) !== \" \" && uniformType.charAt(startArray) !== \",\") {\n startArray--;\n }\n const lengthInString = uniformType.substring(startArray + 1, endArray);\n length = +lengthInString;\n if (isNaN(length)) {\n length = +preProcessors[lengthInString.trim()];\n }\n while (startArray > 0 && (uniformType.charAt(startArray) === \" \" || uniformType.charAt(startArray) === \",\")) {\n startArray--;\n }\n uniformType = uniformType.substring(uniformType.indexOf(\"<\") + 1, startArray + 1);\n }\n return [name, uniformType, length];\n }\n initializeShaders(processingContext) {\n this._webgpuProcessingContext = processingContext;\n this._attributesInputWGSL = [];\n this._attributesWGSL = [];\n this._attributesConversionCodeWGSL = [];\n this._hasNonFloatAttribute = false;\n this._varyingsWGSL = [];\n this._varyingNamesWGSL = [];\n this._stridedUniformArrays = [];\n }\n preProcessShaderCode(code) {\n // Same check as in webgpuShaderProcessorsGLSL to avoid same ubDelcaration to be injected twice.\n const ubDeclaration = this.pureMode ? \"\" : `struct ${WebGPUShaderProcessor.InternalsUBOName} {\\n yFactor_: f32,\\n textureOutputHeight_: f32,\\n};\\nvar<uniform> ${internalsVarName} : ${WebGPUShaderProcessor.InternalsUBOName};\\n`;\n const alreadyInjected = code.indexOf(ubDeclaration) !== -1;\n return alreadyInjected ? code : ubDeclaration + RemoveComments(code);\n }\n varyingCheck(varying) {\n const regex = /(flat|linear|perspective)?\\s*(center|centroid|sample)?\\s*\\bvarying\\b/;\n return regex.test(varying);\n }\n varyingProcessor(varying, isFragment, preProcessors) {\n const varyingRegex = /\\s*(flat|linear|perspective)?\\s*(center|centroid|sample)?\\s*varying\\s+(?:(?:highp)?|(?:lowp)?)\\s*(\\S+)\\s*:\\s*(.+)\\s*;/gm;\n const match = varyingRegex.exec(varying);\n if (match !== null) {\n var _match$, _match$2;\n const interpolationType = (_match$ = match[1]) !== null && _match$ !== void 0 ? _match$ : \"perspective\";\n const interpolationSampling = (_match$2 = match[2]) !== null && _match$2 !== void 0 ? _match$2 : \"center\";\n const varyingType = match[4];\n const name = match[3];\n const interpolation = interpolationType === \"flat\" ? `@interpolate(${interpolationType})` : `@interpolate(${interpolationType}, ${interpolationSampling})`;\n let location;\n if (isFragment) {\n location = this._webgpuProcessingContext.availableVaryings[name];\n if (location === undefined) {\n Logger.Warn(`Invalid fragment shader: The varying named \"${name}\" is not declared in the vertex shader! This declaration will be ignored.`);\n }\n } else {\n location = this._webgpuProcessingContext.getVaryingNextLocation(varyingType, this._getArraySize(name, varyingType, preProcessors)[2]);\n this._webgpuProcessingContext.availableVaryings[name] = location;\n this._varyingsWGSL.push(` @location(${location}) ${interpolation} ${name} : ${varyingType},`);\n this._varyingNamesWGSL.push(name);\n }\n varying = \"\";\n }\n return varying;\n }\n attributeProcessor(attribute, preProcessors) {\n const attribRegex = /\\s*attribute\\s+(\\S+)\\s*:\\s*(.+)\\s*;/gm;\n const match = attribRegex.exec(attribute);\n if (match !== null) {\n const attributeType = match[2];\n const name = match[1];\n const location = this._webgpuProcessingContext.getAttributeNextLocation(attributeType, this._getArraySize(name, attributeType, preProcessors)[2]);\n this._webgpuProcessingContext.availableAttributes[name] = location;\n this._webgpuProcessingContext.orderedAttributes[location] = name;\n const numComponents = this._webgpuProcessingContext.vertexBufferKindToNumberOfComponents[name];\n if (numComponents !== undefined) {\n // Special case for an int/ivecX vertex buffer that is used as a float/vecX attribute in the shader.\n const newType = numComponents < 0 ? numComponents === -1 ? \"i32\" : \"vec\" + -numComponents + \"<i32>\" : numComponents === 1 ? \"u32\" : \"vec\" + numComponents + \"<u32>\";\n const newName = `_int_${name}_`;\n this._attributesInputWGSL.push(`@location(${location}) ${newName} : ${newType},`);\n this._attributesWGSL.push(`${name} : ${attributeType},`);\n this._attributesConversionCodeWGSL.push(`vertexInputs.${name} = ${attributeType}(vertexInputs_.${newName});`);\n this._hasNonFloatAttribute = true;\n } else {\n this._attributesInputWGSL.push(`@location(${location}) ${name} : ${attributeType},`);\n this._attributesWGSL.push(`${name} : ${attributeType},`);\n this._attributesConversionCodeWGSL.push(`vertexInputs.${name} = vertexInputs_.${name};`);\n }\n attribute = \"\";\n }\n return attribute;\n }\n uniformProcessor(uniform, isFragment, preProcessors) {\n const match = this.uniformRegexp.exec(uniform);\n if (match !== null) {\n const uniformType = match[2];\n const name = match[1];\n this._addUniformToLeftOverUBO(name, uniformType, preProcessors);\n uniform = \"\";\n }\n return uniform;\n }\n textureProcessor(texture, isFragment, preProcessors) {\n const match = this.textureRegexp.exec(texture);\n if (match !== null) {\n const name = match[1]; // name of the variable\n const type = match[2]; // texture_2d<f32> or array<texture_2d_array<f32>, 5> for eg\n const isArrayOfTexture = !!match[3];\n const textureFunc = match[4]; // texture_2d, texture_depth_2d, etc\n const isStorageTexture = textureFunc.indexOf(\"storage\") > 0;\n const componentType = match[6]; // f32 or i32 or u32 or undefined\n const storageTextureFormat = isStorageTexture ? componentType.substring(0, componentType.indexOf(\",\")).trim() : null;\n let arraySize = isArrayOfTexture ? this._getArraySize(name, type, preProcessors)[2] : 0;\n let textureInfo = this._webgpuProcessingContext.availableTextures[name];\n if (!textureInfo) {\n textureInfo = {\n isTextureArray: arraySize > 0,\n isStorageTexture,\n textures: [],\n sampleType: \"float\" /* WebGPUConstants.TextureSampleType.Float */\n };\n arraySize = arraySize || 1;\n for (let i = 0; i < arraySize; ++i) {\n textureInfo.textures.push(this._webgpuProcessingContext.getNextFreeUBOBinding());\n }\n } else {\n arraySize = textureInfo.textures.length;\n }\n this._webgpuProcessingContext.availableTextures[name] = textureInfo;\n const isDepthTexture = textureFunc.indexOf(\"depth\") > 0;\n const textureDimension = gpuTextureViewDimensionByWebGPUTextureFunction[textureFunc];\n const sampleType = isDepthTexture ? \"depth\" /* WebGPUConstants.TextureSampleType.Depth */ : componentType === \"u32\" ? \"uint\" /* WebGPUConstants.TextureSampleType.Uint */ : componentType === \"i32\" ? \"sint\" /* WebGPUConstants.TextureSampleType.Sint */ : \"float\" /* WebGPUConstants.TextureSampleType.Float */;\n textureInfo.sampleType = sampleType;\n if (textureDimension === undefined) {\n // eslint-disable-next-line no-throw-literal\n throw `Can't get the texture dimension corresponding to the texture function \"${textureFunc}\"!`;\n }\n for (let i = 0; i < arraySize; ++i) {\n const {\n groupIndex,\n bindingIndex\n } = textureInfo.textures[i];\n if (i === 0) {\n texture = `@group(${groupIndex}) @binding(${bindingIndex}) ${texture}`;\n }\n this._addTextureBindingDescription(name, textureInfo, i, textureDimension, storageTextureFormat, !isFragment);\n }\n }\n return texture;\n }\n // We need to process defines which are directly in the files themselves\n postProcessor(code) {\n const definePattern = /#define (.+?) (.+?)$/gm;\n let match;\n while ((match = definePattern.exec(code)) !== null) {\n code = code.replace(new RegExp(match[1], \"g\"), match[2]);\n }\n return code;\n }\n finalizeShaders(vertexCode, fragmentCode) {\n const fragCoordCode = fragmentCode.indexOf(\"fragmentInputs.position\") >= 0 && !this.pureMode ? `\n if (internals.yFactor_ == 1.) {\n fragmentInputs.position.y = internals.textureOutputHeight_ - fragmentInputs.position.y;\n }\n ` : \"\";\n // Add the group/binding info to the sampler declaration (var xxx: sampler|sampler_comparison)\n vertexCode = this._processSamplers(vertexCode, true);\n fragmentCode = this._processSamplers(fragmentCode, false);\n // Add the group/binding info to the uniform/storage buffer declarations (var<uniform> XXX:YYY or var<storage(,read_write|read)> XXX:YYY)\n vertexCode = this._processCustomBuffers(vertexCode, true);\n fragmentCode = this._processCustomBuffers(fragmentCode, false);\n // Builds the leftover UBOs.\n const leftOverUBO = this._buildLeftOverUBO();\n vertexCode = leftOverUBO + vertexCode;\n fragmentCode = leftOverUBO + fragmentCode;\n // Vertex code\n vertexCode = vertexCode.replace(/#define (\\w+)\\s+(\\d+\\.?\\d*)/g, \"const $1 = $2;\");\n vertexCode = vertexCode.replace(/#define /g, \"//#define \");\n vertexCode = this._processStridedUniformArrays(vertexCode);\n let vertexInputs = \"struct VertexInputs {\\n @builtin(vertex_index) vertexIndex : u32,\\n @builtin(instance_index) instanceIndex : u32,\\n\";\n if (this._attributesInputWGSL.length > 0) {\n vertexInputs += this._attributesInputWGSL.join(\"\\n\");\n }\n vertexInputs += \"\\n};\\nvar<private> vertexInputs\" + (this._hasNonFloatAttribute ? \"_\" : \"\") + \" : VertexInputs;\\n\";\n if (this._hasNonFloatAttribute) {\n vertexInputs += \"struct VertexInputs_ {\\n vertexIndex : u32, instanceIndex : u32,\\n\";\n vertexInputs += this._attributesWGSL.join(\"\\n\");\n vertexInputs += \"\\n};\\nvar<private> vertexInputs : VertexInputs_;\\n\";\n }\n let vertexOutputs = \"struct FragmentInputs {\\n @builtin(position) position : vec4<f32>,\\n\";\n if (this._varyingsWGSL.length > 0) {\n vertexOutputs += this._varyingsWGSL.join(\"\\n\");\n }\n vertexOutputs += \"\\n};\\nvar<private> vertexOutputs : FragmentInputs;\\n\";\n vertexCode = vertexInputs + vertexOutputs + vertexCode;\n let vertexMainStartingCode = `\\n vertexInputs${this._hasNonFloatAttribute ? \"_\" : \"\"} = input;\\n`;\n if (this._hasNonFloatAttribute) {\n vertexMainStartingCode += \"vertexInputs.vertexIndex = vertexInputs_.vertexIndex;\\nvertexInputs.instanceIndex = vertexInputs_.instanceIndex;\\n\";\n vertexMainStartingCode += this._attributesConversionCodeWGSL.join(\"\\n\");\n vertexMainStartingCode += \"\\n\";\n }\n const vertexMainEndingCode = this.pureMode ? ` return vertexOutputs;` : ` vertexOutputs.position.y = vertexOutputs.position.y * internals.yFactor_;\\n return vertexOutputs;`;\n let needDiagnosticOff = vertexCode.indexOf(`#define DISABLE_UNIFORMITY_ANALYSIS`) !== -1;\n vertexCode = (needDiagnosticOff ? \"diagnostic(off, derivative_uniformity);\\n\" : \"\") + \"diagnostic(off, chromium.unreachable_code);\\n\" + InjectStartingAndEndingCode(vertexCode, \"fn main\", vertexMainStartingCode, vertexMainEndingCode);\n // fragment code\n fragmentCode = fragmentCode.replace(/#define (\\w+)\\s+(\\d+\\.?\\d*)/g, \"const $1 = $2;\");\n fragmentCode = fragmentCode.replace(/#define /g, \"//#define \");\n fragmentCode = this._processStridedUniformArrays(fragmentCode);\n if (!this.pureMode) {\n fragmentCode = fragmentCode.replace(/dpdy/g, \"(-internals.yFactor_)*dpdy\"); // will also handle dpdyCoarse and dpdyFine\n }\n let fragmentInputs = \"struct FragmentInputs {\\n @builtin(position) position : vec4<f32>,\\n @builtin(front_facing) frontFacing : bool,\\n\";\n if (this._varyingsWGSL.length > 0) {\n fragmentInputs += this._varyingsWGSL.join(\"\\n\");\n }\n fragmentInputs += \"\\n};\\nvar<private> fragmentInputs : FragmentInputs;\\n\";\n let fragmentOutputs = \"struct FragmentOutputs {\\n\";\n // Adding fragData output locations\n const regexRoot = \"fragmentOutputs\\\\.fragData\";\n let match = fragmentCode.match(new RegExp(regexRoot + \"0\", \"g\"));\n let indexLocation = 0;\n if (match) {\n fragmentOutputs += ` @location(${indexLocation}) fragData0 : vec4<f32>,\\n`;\n indexLocation++;\n for (let index = 1; index < 8; index++) {\n match = fragmentCode.match(new RegExp(regexRoot + index, \"g\"));\n if (match) {\n fragmentOutputs += ` @location(${indexLocation}) fragData${indexLocation} : vec4<f32>,\\n`;\n indexLocation++;\n }\n }\n if (fragmentCode.indexOf(\"MRT_AND_COLOR\") !== -1) {\n fragmentOutputs += ` @location(${indexLocation}) color : vec4<f32>,\\n`;\n indexLocation++;\n }\n }\n // Adding fragData output locations\n const regex = /oitDepthSampler/;\n match = fragmentCode.match(regex);\n if (match) {\n fragmentOutputs += ` @location(${indexLocation++}) depth : vec2<f32>,\\n`;\n fragmentOutputs += ` @location(${indexLocation++}) frontColor : vec4<f32>,\\n`;\n fragmentOutputs += ` @location(${indexLocation++}) backColor : vec4<f32>,\\n`;\n }\n if (indexLocation === 0) {\n fragmentOutputs += \" @location(0) color : vec4<f32>,\\n\";\n indexLocation++;\n }\n // FragDepth\n let hasFragDepth = false;\n let idx = 0;\n while (!hasFragDepth) {\n idx = fragmentCode.indexOf(builtInName_frag_depth, idx);\n if (idx < 0) {\n break;\n }\n const saveIndex = idx;\n hasFragDepth = true;\n while (idx > 1 && fragmentCode.charAt(idx) !== \"\\n\") {\n if (fragmentCode.charAt(idx) === \"/\" && fragmentCode.charAt(idx - 1) === \"/\") {\n hasFragDepth = false;\n break;\n }\n idx--;\n }\n idx = saveIndex + builtInName_frag_depth.length;\n }\n if (hasFragDepth) {\n fragmentOutputs += \" @builtin(frag_depth) fragDepth: f32,\\n\";\n }\n fragmentOutputs += \"};\\nvar<private> fragmentOutputs : FragmentOutputs;\\n\";\n fragmentCode = fragmentInputs + fragmentOutputs + fragmentCode;\n const fragmentStartingCode = \" fragmentInputs = input;\\n \" + fragCoordCode;\n const fragmentEndingCode = \" return fragmentOutputs;\";\n needDiagnosticOff = fragmentCode.indexOf(`#define DISABLE_UNIFORMITY_ANALYSIS`) !== -1;\n fragmentCode = (needDiagnosticOff ? \"diagnostic(off, derivative_uniformity);\\n\" : \"\") + \"diagnostic(off, chromium.unreachable_code);\\n\" + InjectStartingAndEndingCode(fragmentCode, \"fn main\", fragmentStartingCode, fragmentEndingCode);\n this._collectBindingNames();\n this._preCreateBindGroupEntries();\n this._webgpuProcessingContext.vertexBufferKindToNumberOfComponents = {};\n return {\n vertexCode,\n fragmentCode\n };\n }\n _generateLeftOverUBOCode(name, uniformBufferDescription) {\n let stridedArrays = \"\";\n let ubo = `struct ${name} {\\n`;\n for (const leftOverUniform of this._webgpuProcessingContext.leftOverUniforms) {\n const type = leftOverUniform.type.replace(/^(.*?)(<.*>)?$/, \"$1\");\n const size = WebGPUShaderProcessor.UniformSizes[type];\n if (leftOverUniform.length > 0) {\n if (size <= 2) {\n const stridedArrayType = `${name}_${this._stridedUniformArrays.length}_strided_arr`;\n stridedArrays += `struct ${stridedArrayType} {\n @size(16)\n el: ${type},\n }`;\n this._stridedUniformArrays.push(leftOverUniform.name);\n ubo += ` @align(16) ${leftOverUniform.name} : array<${stridedArrayType}, ${leftOverUniform.length}>,\\n`;\n } else {\n ubo += ` ${leftOverUniform.name} : array<${leftOverUniform.type}, ${leftOverUniform.length}>,\\n`;\n }\n } else {\n ubo += ` ${leftOverUniform.name} : ${leftOverUniform.type},\\n`;\n }\n }\n ubo += \"};\\n\";\n ubo = `${stridedArrays}\\n${ubo}`;\n ubo += `@group(${uniformBufferDescription.binding.groupIndex}) @binding(${uniformBufferDescription.binding.bindingIndex}) var<uniform> ${leftOverVarName} : ${name};\\n`;\n return ubo;\n }\n _processSamplers(code, isVertex) {\n const samplerRegexp = /var\\s+(\\w+Sampler)\\s*:\\s*(sampler|sampler_comparison)\\s*;/gm;\n // eslint-disable-next-line no-constant-condition\n while (true) {\n const match = samplerRegexp.exec(code);\n if (match === null) {\n break;\n }\n const name = match[1]; // name of the variable\n const samplerType = match[2]; // sampler or sampler_comparison\n const suffixLessLength = name.length - `Sampler`.length;\n const textureName = name.lastIndexOf(`Sampler`) === suffixLessLength ? name.substring(0, suffixLessLength) : null;\n const samplerBindingType = samplerType === \"sampler_comparison\" ? \"comparison\" /* WebGPUConstants.SamplerBindingType.Comparison */ : \"filtering\" /* WebGPUConstants.SamplerBindingType.Filtering */;\n if (textureName) {\n const textureInfo = this._webgpuProcessingContext.availableTextures[textureName];\n if (textureInfo) {\n textureInfo.autoBindSampler = true;\n }\n }\n let samplerInfo = this._webgpuProcessingContext.availableSamplers[name];\n if (!samplerInfo) {\n samplerInfo = {\n binding: this._webgpuProcessingContext.getNextFreeUBOBinding(),\n type: samplerBindingType\n };\n this._webgpuProcessingContext.availableSamplers[name] = samplerInfo;\n }\n this._addSamplerBindingDescription(name, samplerInfo, isVertex);\n const part1 = code.substring(0, match.index);\n const insertPart = `@group(${samplerInfo.binding.groupIndex}) @binding(${samplerInfo.binding.bindingIndex}) `;\n const part2 = code.substring(match.index);\n code = part1 + insertPart + part2;\n samplerRegexp.lastIndex += insertPart.length;\n }\n return code;\n }\n _processCustomBuffers(code, isVertex) {\n const instantiateBufferRegexp = /var<\\s*(uniform|storage)\\s*(,\\s*(read|read_write)\\s*)?>\\s+(\\S+)\\s*:\\s*(\\S+)\\s*;/gm;\n // eslint-disable-next-line no-constant-condition\n while (true) {\n const match = instantiateBufferRegexp.exec(code);\n if (match === null) {\n break;\n }\n const type = match[1];\n const decoration = match[3];\n let name = match[4];\n const structName = match[5];\n let bufferInfo = this._webgpuProcessingContext.availableBuffers[name];\n if (!bufferInfo) {\n const knownUBO = type === \"uniform\" ? WebGPUShaderProcessingContext.KnownUBOs[structName] : null;\n let binding;\n if (knownUBO) {\n name = structName;\n binding = knownUBO.binding;\n if (binding.groupIndex === -1) {\n var _this$_webgpuProcessi;\n binding = (_this$_webgpuProcessi = this._webgpuProcessingContext.availableBuffers[name]) === null || _this$_webgpuProcessi === void 0 ? void 0 : _this$_webgpuProcessi.binding;\n if (!binding) {\n binding = this._webgpuProcessingContext.getNextFreeUBOBinding();\n }\n }\n } else {\n binding = this._webgpuProcessingContext.getNextFreeUBOBinding();\n }\n bufferInfo = {\n binding\n };\n this._webgpuProcessingContext.availableBuffers[name] = bufferInfo;\n }\n this._addBufferBindingDescription(name, this._webgpuProcessingContext.availableBuffers[name], decoration === \"read_write\" ? \"storage\" /* WebGPUConstants.BufferBindingType.Storage */ : type === \"storage\" ? \"read-only-storage\" /* WebGPUConstants.BufferBindingType.ReadOnlyStorage */ : \"uniform\" /* WebGPUConstants.BufferBindingType.Uniform */, isVertex);\n const groupIndex = bufferInfo.binding.groupIndex;\n const bindingIndex = bufferInfo.binding.bindingIndex;\n const part1 = code.substring(0, match.index);\n const insertPart = `@group(${groupIndex}) @binding(${bindingIndex}) `;\n const part2 = code.substring(match.index);\n code = part1 + insertPart + part2;\n instantiateBufferRegexp.lastIndex += insertPart.length;\n }\n return code;\n }\n _processStridedUniformArrays(code) {\n for (const uniformArrayName of this._stridedUniformArrays) {\n code = code.replace(new RegExp(`${uniformArrayName}\\\\s*\\\\[(.*?)\\\\]`, \"g\"), `${uniformArrayName}[$1].el`);\n }\n return code;\n }\n}","map":{"version":3,"names":["WebGPUShaderProcessingContext","Logger","WebGPUShaderProcessor","RemoveComments","InjectStartingAndEndingCode","builtInName_frag_depth","leftOverVarName","internalsVarName","gpuTextureViewDimensionByWebGPUTextureFunction","texture_1d","texture_2d","texture_2d_array","texture_3d","texture_cube","texture_cube_array","texture_multisampled_2d","texture_depth_2d","texture_depth_2d_array","texture_depth_cube","texture_depth_cube_array","texture_depth_multisampled_2d","texture_storage_1d","texture_storage_2d","texture_storage_2d_array","texture_storage_3d","texture_external","WebGPUShaderProcessorWGSL","constructor","arguments","shaderLanguage","uniformRegexp","textureRegexp","noPrecision","pureMode","preProcessor","code","defines","preProcessors","isFragment","processingContext","key","value","isNaN","parseInt","parseFloat","_getArraySize","name","uniformType","length","endArray","lastIndexOf","indexOf","startArray","charAt","lengthInString","substring","trim","initializeShaders","_webgpuProcessingContext","_attributesInputWGSL","_attributesWGSL","_attributesConversionCodeWGSL","_hasNonFloatAttribute","_varyingsWGSL","_varyingNamesWGSL","_stridedUniformArrays","preProcessShaderCode","ubDeclaration","InternalsUBOName","alreadyInjected","varyingCheck","varying","regex","test","varyingProcessor","varyingRegex","match","exec","_match$","_match$2","interpolationType","interpolationSampling","varyingType","interpolation","location","availableVaryings","undefined","Warn","getVaryingNextLocation","push","attributeProcessor","attribute","attribRegex","attributeType","getAttributeNextLocation","availableAttributes","orderedAttributes","numComponents","vertexBufferKindToNumberOfComponents","newType","newName","uniformProcessor","uniform","_addUniformToLeftOverUBO","textureProcessor","texture","type","isArrayOfTexture","textureFunc","isStorageTexture","componentType","storageTextureFormat","arraySize","textureInfo","availableTextures","isTextureArray","textures","sampleType","i","getNextFreeUBOBinding","isDepthTexture","textureDimension","groupIndex","bindingIndex","_addTextureBindingDescription","postProcessor","definePattern","replace","RegExp","finalizeShaders","vertexCode","fragmentCode","fragCoordCode","_processSamplers","_processCustomBuffers","leftOverUBO","_buildLeftOverUBO","_processStridedUniformArrays","vertexInputs","join","vertexOutputs","vertexMainStartingCode","vertexMainEndingCode","needDiagnosticOff","fragmentInputs","fragmentOutputs","regexRoot","indexLocation","index","hasFragDepth","idx","saveIndex","fragmentStartingCode","fragmentEndingCode","_collectBindingNames","_preCreateBindGroupEntries","_generateLeftOverUBOCode","uniformBufferDescription","stridedArrays","ubo","leftOverUniform","leftOverUniforms","size","UniformSizes","stridedArrayType","binding","isVertex","samplerRegexp","samplerType","suffixLessLength","textureName","samplerBindingType","autoBindSampler","samplerInfo","availableSamplers","_addSamplerBindingDescription","part1","insertPart","part2","lastIndex","instantiateBufferRegexp","decoration","structName","bufferInfo","availableBuffers","knownUBO","KnownUBOs","_this$_webgpuProcessi","_addBufferBindingDescription","uniformArrayName"],"sources":["F:/workspace/202226701027/huinongbao-app/node_modules/@babylonjs/core/Engines/WebGPU/webgpuShaderProcessorsWGSL.js"],"sourcesContent":["import { WebGPUShaderProcessingContext } from \"./webgpuShaderProcessingContext.js\";\nimport { Logger } from \"../../Misc/logger.js\";\nimport { WebGPUShaderProcessor } from \"./webgpuShaderProcessor.js\";\nimport { RemoveComments, InjectStartingAndEndingCode } from \"../../Misc/codeStringParsingTools.js\";\n\nimport \"../../ShadersWGSL/ShadersInclude/bakedVertexAnimationDeclaration.js\";\nimport \"../../ShadersWGSL/ShadersInclude/bakedVertexAnimation.js\";\nimport \"../../ShadersWGSL/ShadersInclude/instancesDeclaration.js\";\nimport \"../../ShadersWGSL/ShadersInclude/instancesVertex.js\";\nimport \"../../ShadersWGSL/ShadersInclude/helperFunctions.js\";\nimport \"../../ShadersWGSL/ShadersInclude/fresnelFunction.js\";\nimport \"../../ShadersWGSL/ShadersInclude/meshUboDeclaration.js\";\nimport \"../../ShadersWGSL/ShadersInclude/sceneUboDeclaration.js\";\nimport \"../../ShadersWGSL/ShadersInclude/decalFragment.js\";\nconst builtInName_frag_depth = \"fragmentOutputs.fragDepth\";\nconst leftOverVarName = \"uniforms\";\nconst internalsVarName = \"internals\";\nconst gpuTextureViewDimensionByWebGPUTextureFunction = {\n texture_1d: \"1d\" /* WebGPUConstants.TextureViewDimension.E1d */,\n texture_2d: \"2d\" /* WebGPUConstants.TextureViewDimension.E2d */,\n texture_2d_array: \"2d-array\" /* WebGPUConstants.TextureViewDimension.E2dArray */,\n texture_3d: \"3d\" /* WebGPUConstants.TextureViewDimension.E3d */,\n texture_cube: \"cube\" /* WebGPUConstants.TextureViewDimension.Cube */,\n texture_cube_array: \"cube-array\" /* WebGPUConstants.TextureViewDimension.CubeArray */,\n texture_multisampled_2d: \"2d\" /* WebGPUConstants.TextureViewDimension.E2d */,\n texture_depth_2d: \"2d\" /* WebGPUConstants.TextureViewDimension.E2d */,\n texture_depth_2d_array: \"2d-array\" /* WebGPUConstants.TextureViewDimension.E2dArray */,\n texture_depth_cube: \"cube\" /* WebGPUConstants.TextureViewDimension.Cube */,\n texture_depth_cube_array: \"cube-array\" /* WebGPUConstants.TextureViewDimension.CubeArray */,\n texture_depth_multisampled_2d: \"2d\" /* WebGPUConstants.TextureViewDimension.E2d */,\n texture_storage_1d: \"1d\" /* WebGPUConstants.TextureViewDimension.E1d */,\n texture_storage_2d: \"2d\" /* WebGPUConstants.TextureViewDimension.E2d */,\n texture_storage_2d_array: \"2d-array\" /* WebGPUConstants.TextureViewDimension.E2dArray */,\n texture_storage_3d: \"3d\" /* WebGPUConstants.TextureViewDimension.E3d */,\n texture_external: null,\n};\n/** @internal */\nexport class WebGPUShaderProcessorWGSL extends WebGPUShaderProcessor {\n constructor() {\n super(...arguments);\n this.shaderLanguage = 1 /* ShaderLanguage.WGSL */;\n this.uniformRegexp = /uniform\\s+(\\w+)\\s*:\\s*(.+)\\s*;/;\n this.textureRegexp = /var\\s+(\\w+)\\s*:\\s*((array<\\s*)?(texture_\\w+)\\s*(<\\s*(.+)\\s*>)?\\s*(,\\s*\\w+\\s*>\\s*)?);/;\n this.noPrecision = true;\n this.pureMode = false;\n }\n preProcessor(code, defines, preProcessors, isFragment, processingContext) {\n // Convert defines into const\n for (const key in preProcessors) {\n if (key === \"__VERSION__\") {\n continue;\n }\n const value = preProcessors[key];\n if (!isNaN(parseInt(value)) || !isNaN(parseFloat(value))) {\n code = `const ${key} = ${value};\\n` + code;\n }\n }\n return code;\n }\n _getArraySize(name, uniformType, preProcessors) {\n let length = 0;\n const endArray = uniformType.lastIndexOf(\">\");\n if (uniformType.indexOf(\"array\") >= 0 && endArray > 0) {\n let startArray = endArray;\n while (startArray > 0 && uniformType.charAt(startArray) !== \" \" && uniformType.charAt(startArray) !== \",\") {\n startArray--;\n }\n const lengthInString = uniformType.substring(startArray + 1, endArray);\n length = +lengthInString;\n if (isNaN(length)) {\n length = +preProcessors[lengthInString.trim()];\n }\n while (startArray > 0 && (uniformType.charAt(startArray) === \" \" || uniformType.charAt(startArray) === \",\")) {\n startArray--;\n }\n uniformType = uniformType.substring(uniformType.indexOf(\"<\") + 1, startArray + 1);\n }\n return [name, uniformType, length];\n }\n initializeShaders(processingContext) {\n this._webgpuProcessingContext = processingContext;\n this._attributesInputWGSL = [];\n this._attributesWGSL = [];\n this._attributesConversionCodeWGSL = [];\n this._hasNonFloatAttribute = false;\n this._varyingsWGSL = [];\n this._varyingNamesWGSL = [];\n this._stridedUniformArrays = [];\n }\n preProcessShaderCode(code) {\n // Same check as in webgpuShaderProcessorsGLSL to avoid same ubDelcaration to be injected twice.\n const ubDeclaration = this.pureMode\n ? \"\"\n : `struct ${WebGPUShaderProcessor.InternalsUBOName} {\\n yFactor_: f32,\\n textureOutputHeight_: f32,\\n};\\nvar<uniform> ${internalsVarName} : ${WebGPUShaderProcessor.InternalsUBOName};\\n`;\n const alreadyInjected = code.indexOf(ubDeclaration) !== -1;\n return alreadyInjected ? code : ubDeclaration + RemoveComments(code);\n }\n varyingCheck(varying) {\n const regex = /(flat|linear|perspective)?\\s*(center|centroid|sample)?\\s*\\bvarying\\b/;\n return regex.test(varying);\n }\n varyingProcessor(varying, isFragment, preProcessors) {\n const varyingRegex = /\\s*(flat|linear|perspective)?\\s*(center|centroid|sample)?\\s*varying\\s+(?:(?:highp)?|(?:lowp)?)\\s*(\\S+)\\s*:\\s*(.+)\\s*;/gm;\n const match = varyingRegex.exec(varying);\n if (match !== null) {\n const interpolationType = match[1] ?? \"perspective\";\n const interpolationSampling = match[2] ?? \"center\";\n const varyingType = match[4];\n const name = match[3];\n const interpolation = interpolationType === \"flat\" ? `@interpolate(${interpolationType})` : `@interpolate(${interpolationType}, ${interpolationSampling})`;\n let location;\n if (isFragment) {\n location = this._webgpuProcessingContext.availableVaryings[name];\n if (location === undefined) {\n Logger.Warn(`Invalid fragment shader: The varying named \"${name}\" is not declared in the vertex shader! This declaration will be ignored.`);\n }\n }\n else {\n location = this._webgpuProcessingContext.getVaryingNextLocation(varyingType, this._getArraySize(name, varyingType, preProcessors)[2]);\n this._webgpuProcessingContext.availableVaryings[name] = location;\n this._varyingsWGSL.push(` @location(${location}) ${interpolation} ${name} : ${varyingType},`);\n this._varyingNamesWGSL.push(name);\n }\n varying = \"\";\n }\n return varying;\n }\n attributeProcessor(attribute, preProcessors) {\n const attribRegex = /\\s*attribute\\s+(\\S+)\\s*:\\s*(.+)\\s*;/gm;\n const match = attribRegex.exec(attribute);\n if (match !== null) {\n const attributeType = match[2];\n const name = match[1];\n const location = this._webgpuProcessingContext.getAttributeNextLocation(attributeType, this._getArraySize(name, attributeType, preProcessors)[2]);\n this._webgpuProcessingContext.availableAttributes[name] = location;\n this._webgpuProcessingContext.orderedAttributes[location] = name;\n const numComponents = this._webgpuProcessingContext.vertexBufferKindToNumberOfComponents[name];\n if (numComponents !== undefined) {\n // Special case for an int/ivecX vertex buffer that is used as a float/vecX attribute in the shader.\n const newType = numComponents < 0 ? (numComponents === -1 ? \"i32\" : \"vec\" + -numComponents + \"<i32>\") : numComponents === 1 ? \"u32\" : \"vec\" + numComponents + \"<u32>\";\n const newName = `_int_${name}_`;\n this._attributesInputWGSL.push(`@location(${location}) ${newName} : ${newType},`);\n this._attributesWGSL.push(`${name} : ${attributeType},`);\n this._attributesConversionCodeWGSL.push(`vertexInputs.${name} = ${attributeType}(vertexInputs_.${newName});`);\n this._hasNonFloatAttribute = true;\n }\n else {\n this._attributesInputWGSL.push(`@location(${location}) ${name} : ${attributeType},`);\n this._attributesWGSL.push(`${name} : ${attributeType},`);\n this._attributesConversionCodeWGSL.push(`vertexInputs.${name} = vertexInputs_.${name};`);\n }\n attribute = \"\";\n }\n return attribute;\n }\n uniformProcessor(uniform, isFragment, preProcessors) {\n const match = this.uniformRegexp.exec(uniform);\n if (match !== null) {\n const uniformType = match[2];\n const name = match[1];\n this._addUniformToLeftOverUBO(name, uniformType, preProcessors);\n uniform = \"\";\n }\n return uniform;\n }\n textureProcessor(texture, isFragment, preProcessors) {\n const match = this.textureRegexp.exec(texture);\n if (match !== null) {\n const name = match[1]; // name of the variable\n const type = match[2]; // texture_2d<f32> or array<texture_2d_array<f32>, 5> for eg\n const isArrayOfTexture = !!match[3];\n const textureFunc = match[4]; // texture_2d, texture_depth_2d, etc\n const isStorageTexture = textureFunc.indexOf(\"storage\") > 0;\n const componentType = match[6]; // f32 or i32 or u32 or undefined\n const storageTextureFormat = isStorageTexture ? componentType.substring(0, componentType.indexOf(\",\")).trim() : null;\n let arraySize = isArrayOfTexture ? this._getArraySize(name, type, preProcessors)[2] : 0;\n let textureInfo = this._webgpuProcessingContext.availableTextures[name];\n if (!textureInfo) {\n textureInfo = {\n isTextureArray: arraySize > 0,\n isStorageTexture,\n textures: [],\n sampleType: \"float\" /* WebGPUConstants.TextureSampleType.Float */,\n };\n arraySize = arraySize || 1;\n for (let i = 0; i < arraySize; ++i) {\n textureInfo.textures.push(this._webgpuProcessingContext.getNextFreeUBOBinding());\n }\n }\n else {\n arraySize = textureInfo.textures.length;\n }\n this._webgpuProcessingContext.availableTextures[name] = textureInfo;\n const isDepthTexture = textureFunc.indexOf(\"depth\") > 0;\n const textureDimension = gpuTextureViewDimensionByWebGPUTextureFunction[textureFunc];\n const sampleType = isDepthTexture\n ? \"depth\" /* WebGPUConstants.TextureSampleType.Depth */\n : componentType === \"u32\"\n ? \"uint\" /* WebGPUConstants.TextureSampleType.Uint */\n : componentType === \"i32\"\n ? \"sint\" /* WebGPUConstants.TextureSampleType.Sint */\n : \"float\" /* WebGPUConstants.TextureSampleType.Float */;\n textureInfo.sampleType = sampleType;\n if (textureDimension === undefined) {\n // eslint-disable-next-line no-throw-literal\n throw `Can't get the texture dimension corresponding to the texture function \"${textureFunc}\"!`;\n }\n for (let i = 0; i < arraySize; ++i) {\n const { groupIndex, bindingIndex } = textureInfo.textures[i];\n if (i === 0) {\n texture = `@group(${groupIndex}) @binding(${bindingIndex}) ${texture}`;\n }\n this._addTextureBindingDescription(name, textureInfo, i, textureDimension, storageTextureFormat, !isFragment);\n }\n }\n return texture;\n }\n // We need to process defines which are directly in the files themselves\n postProcessor(code) {\n const definePattern = /#define (.+?) (.+?)$/gm;\n let match;\n while ((match = definePattern.exec(code)) !== null) {\n code = code.replace(new RegExp(match[1], \"g\"), match[2]);\n }\n return code;\n }\n finalizeShaders(vertexCode, fragmentCode) {\n const fragCoordCode = fragmentCode.indexOf(\"fragmentInputs.position\") >= 0 && !this.pureMode\n ? `\r\n if (internals.yFactor_ == 1.) {\r\n fragmentInputs.position.y = internals.textureOutputHeight_ - fragmentInputs.position.y;\r\n }\r\n `\n : \"\";\n // Add the group/binding info to the sampler declaration (var xxx: sampler|sampler_comparison)\n vertexCode = this._processSamplers(vertexCode, true);\n fragmentCode = this._processSamplers(fragmentCode, false);\n // Add the group/binding info to the uniform/storage buffer declarations (var<uniform> XXX:YYY or var<storage(,read_write|read)> XXX:YYY)\n vertexCode = this._processCustomBuffers(vertexCode, true);\n fragmentCode = this._processCustomBuffers(fragmentCode, false);\n // Builds the leftover UBOs.\n const leftOverUBO = this._buildLeftOverUBO();\n vertexCode = leftOverUBO + vertexCode;\n fragmentCode = leftOverUBO + fragmentCode;\n // Vertex code\n vertexCode = vertexCode.replace(/#define (\\w+)\\s+(\\d+\\.?\\d*)/g, \"const $1 = $2;\");\n vertexCode = vertexCode.replace(/#define /g, \"//#define \");\n vertexCode = this._processStridedUniformArrays(vertexCode);\n let vertexInputs = \"struct VertexInputs {\\n @builtin(vertex_index) vertexIndex : u32,\\n @builtin(instance_index) instanceIndex : u32,\\n\";\n if (this._attributesInputWGSL.length > 0) {\n vertexInputs += this._attributesInputWGSL.join(\"\\n\");\n }\n vertexInputs += \"\\n};\\nvar<private> vertexInputs\" + (this._hasNonFloatAttribute ? \"_\" : \"\") + \" : VertexInputs;\\n\";\n if (this._hasNonFloatAttribute) {\n vertexInputs += \"struct VertexInputs_ {\\n vertexIndex : u32, instanceIndex : u32,\\n\";\n vertexInputs += this._attributesWGSL.join(\"\\n\");\n vertexInputs += \"\\n};\\nvar<private> vertexInputs : VertexInputs_;\\n\";\n }\n let vertexOutputs = \"struct FragmentInputs {\\n @builtin(position) position : vec4<f32>,\\n\";\n if (this._varyingsWGSL.length > 0) {\n vertexOutputs += this._varyingsWGSL.join(\"\\n\");\n }\n vertexOutputs += \"\\n};\\nvar<private> vertexOutputs : FragmentInputs;\\n\";\n vertexCode = vertexInputs + vertexOutputs + vertexCode;\n let vertexMainStartingCode = `\\n vertexInputs${this._hasNonFloatAttribute ? \"_\" : \"\"} = input;\\n`;\n if (this._hasNonFloatAttribute) {\n vertexMainStartingCode += \"vertexInputs.vertexIndex = vertexInputs_.vertexIndex;\\nvertexInputs.instanceIndex = vertexInputs_.instanceIndex;\\n\";\n vertexMainStartingCode += this._attributesConversionCodeWGSL.join(\"\\n\");\n vertexMainStartingCode += \"\\n\";\n }\n const vertexMainEndingCode = this.pureMode\n ? ` return vertexOutputs;`\n : ` vertexOutputs.position.y = vertexOutputs.position.y * internals.yFactor_;\\n return vertexOutputs;`;\n let needDiagnosticOff = vertexCode.indexOf(`#define DISABLE_UNIFORMITY_ANALYSIS`) !== -1;\n vertexCode =\n (needDiagnosticOff ? \"diagnostic(off, derivative_uniformity);\\n\" : \"\") +\n \"diagnostic(off, chromium.unreachable_code);\\n\" +\n InjectStartingAndEndingCode(vertexCode, \"fn main\", vertexMainStartingCode, vertexMainEndingCode);\n // fragment code\n fragmentCode = fragmentCode.replace(/#define (\\w+)\\s+(\\d+\\.?\\d*)/g, \"const $1 = $2;\");\n fragmentCode = fragmentCode.replace(/#define /g, \"//#define \");\n fragmentCode = this._processStridedUniformArrays(fragmentCode);\n if (!this.pureMode) {\n fragmentCode = fragmentCode.replace(/dpdy/g, \"(-internals.yFactor_)*dpdy\"); // will also handle dpdyCoarse and dpdyFine\n }\n let fragmentInputs = \"struct FragmentInputs {\\n @builtin(position) position : vec4<f32>,\\n @builtin(front_facing) frontFacing : bool,\\n\";\n if (this._varyingsWGSL.length > 0) {\n fragmentInputs += this._varyingsWGSL.join(\"\\n\");\n }\n fragmentInputs += \"\\n};\\nvar<private> fragmentInputs : FragmentInputs;\\n\";\n let fragmentOutputs = \"struct FragmentOutputs {\\n\";\n // Adding fragData output locations\n const regexRoot = \"fragmentOutputs\\\\.fragData\";\n let match = fragmentCode.match(new RegExp(regexRoot + \"0\", \"g\"));\n let indexLocation = 0;\n if (match) {\n fragmentOutputs += ` @location(${indexLocation}) fragData0 : vec4<f32>,\\n`;\n indexLocation++;\n for (let index = 1; index < 8; index++) {\n match = fragmentCode.match(new RegExp(regexRoot + index, \"g\"));\n if (match) {\n fragmentOutputs += ` @location(${indexLocation}) fragData${indexLocation} : vec4<f32>,\\n`;\n indexLocation++;\n }\n }\n if (fragmentCode.indexOf(\"MRT_AND_COLOR\") !== -1) {\n fragmentOutputs += ` @location(${indexLocation}) color : vec4<f32>,\\n`;\n indexLocation++;\n }\n }\n // Adding fragData output locations\n const regex = /oitDepthSampler/;\n match = fragmentCode.match(regex);\n if (match) {\n fragmentOutputs += ` @location(${indexLocation++}) depth : vec2<f32>,\\n`;\n fragmentOutputs += ` @location(${indexLocation++}) frontColor : vec4<f32>,\\n`;\n fragmentOutputs += ` @location(${indexLocation++}) backColor : vec4<f32>,\\n`;\n }\n if (indexLocation === 0) {\n fragmentOutputs += \" @location(0) color : vec4<f32>,\\n\";\n indexLocation++;\n }\n // FragDepth\n let hasFragDepth = false;\n let idx = 0;\n while (!hasFragDepth) {\n idx = fragmentCode.indexOf(builtInName_frag_depth, idx);\n if (idx < 0) {\n break;\n }\n const saveIndex = idx;\n hasFragDepth = true;\n while (idx > 1 && fragmentCode.charAt(idx) !== \"\\n\") {\n if (fragmentCode.charAt(idx) === \"/\" && fragmentCode.charAt(idx - 1) === \"/\") {\n hasFragDepth = false;\n break;\n }\n idx--;\n }\n idx = saveIndex + builtInName_frag_depth.length;\n }\n if (hasFragDepth) {\n fragmentOutputs += \" @builtin(frag_depth) fragDepth: f32,\\n\";\n }\n fragmentOutputs += \"};\\nvar<private> fragmentOutputs : FragmentOutputs;\\n\";\n fragmentCode = fragmentInputs + fragmentOutputs + fragmentCode;\n const fragmentStartingCode = \" fragmentInputs = input;\\n \" + fragCoordCode;\n const fragmentEndingCode = \" return fragmentOutputs;\";\n needDiagnosticOff = fragmentCode.indexOf(`#define DISABLE_UNIFORMITY_ANALYSIS`) !== -1;\n fragmentCode =\n (needDiagnosticOff ? \"diagnostic(off, derivative_uniformity);\\n\" : \"\") +\n \"diagnostic(off, chromium.unreachable_code);\\n\" +\n InjectStartingAndEndingCode(fragmentCode, \"fn main\", fragmentStartingCode, fragmentEndingCode);\n this._collectBindingNames();\n this._preCreateBindGroupEntries();\n this._webgpuProcessingContext.vertexBufferKindToNumberOfComponents = {};\n return { vertexCode, fragmentCode };\n }\n _generateLeftOverUBOCode(name, uniformBufferDescription) {\n let stridedArrays = \"\";\n let ubo = `struct ${name} {\\n`;\n for (const leftOverUniform of this._webgpuProcessingContext.leftOverUniforms) {\n const type = leftOverUniform.type.replace(/^(.*?)(<.*>)?$/, \"$1\");\n const size = WebGPUShaderProcessor.UniformSizes[type];\n if (leftOverUniform.length > 0) {\n if (size <= 2) {\n const stridedArrayType = `${name}_${this._stridedUniformArrays.length}_strided_arr`;\n stridedArrays += `struct ${stridedArrayType} {\r\n @size(16)\r\n el: ${type},\r\n }`;\n this._stridedUniformArrays.push(leftOverUniform.name);\n ubo += ` @align(16) ${leftOverUniform.name} : array<${stridedArrayType}, ${leftOverUniform.length}>,\\n`;\n }\n else {\n ubo += ` ${leftOverUniform.name} : array<${leftOverUniform.type}, ${leftOverUniform.length}>,\\n`;\n }\n }\n else {\n ubo += ` ${leftOverUniform.name} : ${leftOverUniform.type},\\n`;\n }\n }\n ubo += \"};\\n\";\n ubo = `${stridedArrays}\\n${ubo}`;\n ubo += `@group(${uniformBufferDescription.binding.groupIndex}) @binding(${uniformBufferDescription.binding.bindingIndex}) var<uniform> ${leftOverVarName} : ${name};\\n`;\n return ubo;\n }\n _processSamplers(code, isVertex) {\n const samplerRegexp = /var\\s+(\\w+Sampler)\\s*:\\s*(sampler|sampler_comparison)\\s*;/gm;\n // eslint-disable-next-line no-constant-condition\n while (true) {\n const match = samplerRegexp.exec(code);\n if (match === null) {\n break;\n }\n const name = match[1]; // name of the variable\n const samplerType = match[2]; // sampler or sampler_comparison\n const suffixLessLength = name.length - `Sampler`.length;\n const textureName = name.lastIndexOf(`Sampler`) === suffixLessLength ? name.substring(0, suffixLessLength) : null;\n const samplerBindingType = samplerType === \"sampler_comparison\" ? \"comparison\" /* WebGPUConstants.SamplerBindingType.Comparison */ : \"filtering\" /* WebGPUConstants.SamplerBindingType.Filtering */;\n if (textureName) {\n const textureInfo = this._webgpuProcessingContext.availableTextures[textureName];\n if (textureInfo) {\n textureInfo.autoBindSampler = true;\n }\n }\n let samplerInfo = this._webgpuProcessingContext.availableSamplers[name];\n if (!samplerInfo) {\n samplerInfo = {\n binding: this._webgpuProcessingContext.getNextFreeUBOBinding(),\n type: samplerBindingType,\n };\n this._webgpuProcessingContext.availableSamplers[name] = samplerInfo;\n }\n this._addSamplerBindingDescription(name, samplerInfo, isVertex);\n const part1 = code.substring(0, match.index);\n const insertPart = `@group(${samplerInfo.binding.groupIndex}) @binding(${samplerInfo.binding.bindingIndex}) `;\n const part2 = code.substring(match.index);\n code = part1 + insertPart + part2;\n samplerRegexp.lastIndex += insertPart.length;\n }\n return code;\n }\n _processCustomBuffers(code, isVertex) {\n const instantiateBufferRegexp = /var<\\s*(uniform|storage)\\s*(,\\s*(read|read_write)\\s*)?>\\s+(\\S+)\\s*:\\s*(\\S+)\\s*;/gm;\n // eslint-disable-next-line no-constant-condition\n while (true) {\n const match = instantiateBufferRegexp.exec(code);\n if (match === null) {\n break;\n }\n const type = match[1];\n const decoration = match[3];\n let name = match[4];\n const structName = match[5];\n let bufferInfo = this._webgpuProcessingContext.availableBuffers[name];\n if (!bufferInfo) {\n const knownUBO = type === \"uniform\" ? WebGPUShaderProcessingContext.KnownUBOs[structName] : null;\n let binding;\n if (knownUBO) {\n name = structName;\n binding = knownUBO.binding;\n if (binding.groupIndex === -1) {\n binding = this._webgpuProcessingContext.availableBuffers[name]?.binding;\n if (!binding) {\n binding = this._webgpuProcessingContext.getNextFreeUBOBinding();\n }\n }\n }\n else {\n binding = this._webgpuProcessingContext.getNextFreeUBOBinding();\n }\n bufferInfo = { binding };\n this._webgpuProcessingContext.availableBuffers[name] = bufferInfo;\n }\n this._addBufferBindingDescription(name, this._webgpuProcessingContext.availableBuffers[name], decoration === \"read_write\"\n ? \"storage\" /* WebGPUConstants.BufferBindingType.Storage */\n : type === \"storage\"\n ? \"read-only-storage\" /* WebGPUConstants.BufferBindingType.ReadOnlyStorage */\n : \"uniform\" /* WebGPUConstants.BufferBindingType.Uniform */, isVertex);\n const groupIndex = bufferInfo.binding.groupIndex;\n const bindingIndex = bufferInfo.binding.bindingIndex;\n const part1 = code.substring(0, match.index);\n const insertPart = `@group(${groupIndex}) @binding(${bindingIndex}) `;\n const part2 = code.substring(match.index);\n code = part1 + insertPart + part2;\n instantiateBufferRegexp.lastIndex += insertPart.length;\n }\n return code;\n }\n _processStridedUniformArrays(code) {\n for (const uniformArrayName of this._stridedUniformArrays) {\n code = code.replace(new RegExp(`${uniformArrayName}\\\\s*\\\\[(.*?)\\\\]`, \"g\"), `${uniformArrayName}[$1].el`);\n }\n return code;\n 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