next/dist/next-server/server/lib/squoosh/codecs.js

The React Framework

"use strict";exports.__esModule=true;exports.codecs=exports.preprocessors=void 0;var _fs=require("fs");var path=_interopRequireWildcard(require("path"));var _emscriptenUtils=require("./emscripten-utils.js");var _mozjpeg_node_enc=_interopRequireDefault(require("./mozjpeg/mozjpeg_node_enc.js"));var _mozjpeg_node_dec=_interopRequireDefault(require("./mozjpeg/mozjpeg_node_dec.js"));var _webp_node_enc=_interopRequireDefault(require("./webp/webp_node_enc.js"));var _webp_node_dec=_interopRequireDefault(require("./webp/webp_node_dec.js"));var pngEncDec=_interopRequireWildcard(require("./png/squoosh_png.js"));var oxipng=_interopRequireWildcard(require("./png/squoosh_oxipng.js"));var resize=_interopRequireWildcard(require("./resize/squoosh_resize.js"));var _image_data=_interopRequireDefault(require("./image_data.js"));function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}function _getRequireWildcardCache(){if(typeof WeakMap!=="function")return null;var cache=new WeakMap();_getRequireWildcardCache=function(){return cache;};return cache;}function _interopRequireWildcard(obj){if(obj&&obj.__esModule){return obj;}if(obj===null||typeof obj!=="object"&&typeof obj!=="function"){return{default:obj};}var cache=_getRequireWildcardCache();if(cache&&cache.has(obj)){return cache.get(obj);}var newObj={};var hasPropertyDescriptor=Object.defineProperty&&Object.getOwnPropertyDescriptor;for(var key in obj){if(Object.prototype.hasOwnProperty.call(obj,key)){var desc=hasPropertyDescriptor?Object.getOwnPropertyDescriptor(obj,key):null;if(desc&&(desc.get||desc.set)){Object.defineProperty(newObj,key,desc);}else{newObj[key]=obj[key];}}}newObj.default=obj;if(cache){cache.set(obj,newObj);}return newObj;}// MozJPEG
// @ts-ignore
const mozEncWasm=path.resolve(__dirname,'./mozjpeg/mozjpeg_node_enc.wasm');// @ts-ignore
const mozDecWasm=path.resolve(__dirname,'./mozjpeg/mozjpeg_node_dec.wasm');// WebP
// @ts-ignore
const webpEncWasm=path.resolve(__dirname,'./webp/webp_node_enc.wasm');// @ts-ignore
const webpDecWasm=path.resolve(__dirname,'./webp/webp_node_dec.wasm');// PNG
// @ts-ignore
const pngEncDecWasm=path.resolve(__dirname,'./png/squoosh_png_bg.wasm');const pngEncDecInit=()=>pngEncDec.default(_fs.promises.readFile((0,_emscriptenUtils.pathify)(pngEncDecWasm)));// OxiPNG
// @ts-ignore
const oxipngWasm=path.resolve(__dirname,'./png/squoosh_oxipng_bg.wasm');const oxipngInit=()=>oxipng.default(_fs.promises.readFile((0,_emscriptenUtils.pathify)(oxipngWasm)));// Resize
// @ts-ignore
const resizeWasm=path.resolve(__dirname,'./resize/squoosh_resize_bg.wasm');const resizeInit=()=>resize.default(_fs.promises.readFile((0,_emscriptenUtils.pathify)(resizeWasm)));// rotate
const rotateWasm=path.resolve(__dirname,'./rotate/rotate.wasm');global.ImageData=_image_data.default;// mandatory for wasm binaries
function resizeNameToIndex(name){switch(name){case'triangle':return 0;case'catrom':return 1;case'mitchell':return 2;case'lanczos3':return 3;default:throw Error(`Unknown resize algorithm "${name}"`);}}function resizeWithAspect({input_width,input_height,target_width,target_height}){if(!target_width&&!target_height){throw Error('Need to specify at least width or height when resizing');}if(target_width&&target_height){return{width:target_width,height:target_height};}if(!target_width){return{width:Math.round(input_width/input_height*target_height),height:target_height};}if(!target_height){return{width:target_width,height:Math.round(input_height/input_width*target_width)};}throw Error('invariant');}const preprocessors={resize:{name:'Resize',description:'Resize the image before compressing',instantiate:async()=>{await resizeInit();return(buffer,input_width,input_height,{width,height,method,premultiply,linearRGB})=>{;({width,height}=resizeWithAspect({input_width,input_height,target_width:width,target_height:height}));const imageData=new _image_data.default(resize.resize(buffer,input_width,input_height,width,height,resizeNameToIndex(method),premultiply,linearRGB),width,height);resize.cleanup();return imageData;};},defaultOptions:{method:'lanczos3',fitMethod:'stretch',premultiply:true,linearRGB:true}},rotate:{name:'Rotate',description:'Rotate image',instantiate:async()=>{return async(buffer,width,height,{numRotations})=>{const degrees=numRotations*90%360;const sameDimensions=degrees===0||degrees===180;const size=width*height*4;const{instance}=await WebAssembly.instantiate(await _fs.promises.readFile((0,_emscriptenUtils.pathify)(rotateWasm)));const exports=instance.exports;const{memory}=exports;const additionalPagesNeeded=Math.ceil((size*2-memory.buffer.byteLength+8)/(64*1024));if(additionalPagesNeeded>0){memory.grow(additionalPagesNeeded);}const view=new Uint8ClampedArray(memory.buffer);view.set(buffer,8);exports.rotate(width,height,degrees);return new _image_data.default(Buffer.from(view.slice(size+8,size*2+8)),sameDimensions?width:height,sameDimensions?height:width);};},defaultOptions:{numRotations:0}}};exports.preprocessors=preprocessors;const codecs={mozjpeg:{name:'MozJPEG',extension:'jpg',detectors:[/^\xFF\xD8\xFF/],dec:()=>(0,_emscriptenUtils.instantiateEmscriptenWasm)(_mozjpeg_node_dec.default,mozDecWasm),enc:()=>(0,_emscriptenUtils.instantiateEmscriptenWasm)(_mozjpeg_node_enc.default,mozEncWasm),defaultEncoderOptions:{quality:75,baseline:false,arithmetic:false,progressive:true,optimize_coding:true,smoothing:0,color_space:3/*YCbCr*/,quant_table:3,trellis_multipass:false,trellis_opt_zero:false,trellis_opt_table:false,trellis_loops:1,auto_subsample:true,chroma_subsample:2,separate_chroma_quality:false,chroma_quality:75},autoOptimize:{option:'quality',min:0,max:100}},webp:{name:'WebP',extension:'webp',detectors:[/^RIFF....WEBPVP8[LX ]/],dec:()=>(0,_emscriptenUtils.instantiateEmscriptenWasm)(_webp_node_dec.default,webpDecWasm),enc:()=>(0,_emscriptenUtils.instantiateEmscriptenWasm)(_webp_node_enc.default,webpEncWasm),defaultEncoderOptions:{quality:75,target_size:0,target_PSNR:0,method:4,sns_strength:50,filter_strength:60,filter_sharpness:0,filter_type:1,partitions:0,segments:4,pass:1,show_compressed:0,preprocessing:0,autofilter:0,partition_limit:0,alpha_compression:1,alpha_filtering:1,alpha_quality:100,lossless:0,exact:0,image_hint:0,emulate_jpeg_size:0,thread_level:0,low_memory:0,near_lossless:100,use_delta_palette:0,use_sharp_yuv:0},autoOptimize:{option:'quality',min:0,max:100}},oxipng:{name:'OxiPNG',extension:'png',// eslint-disable-next-line no-control-regex
detectors:[/^\x89PNG\x0D\x0A\x1A\x0A/],dec:async()=>{await pngEncDecInit();return{decode:buffer=>{const imageData=pngEncDec.decode(buffer);pngEncDec.cleanup();return imageData;}};},enc:async()=>{await pngEncDecInit();await oxipngInit();return{encode:(buffer,width,height,opts)=>{const simplePng=pngEncDec.encode(new Uint8Array(buffer),width,height);const imageData=oxipng.optimise(simplePng,opts.level);oxipng.cleanup();return imageData;}};},defaultEncoderOptions:{level:2},autoOptimize:{option:'level',min:6,max:1}}};exports.codecs=codecs;
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