securityos/node_modules/next/dist/server/lib/squoosh/main.js

"use strict";
Object.defineProperty(exports, "__esModule", {
    value: true
});
0 && (module.exports = {
    getMetadata: null,
    processBuffer: null,
    decodeBuffer: null
});
function _export(target, all) {
    for(var name in all)Object.defineProperty(target, name, {
        enumerable: true,
        get: all[name]
    });
}
_export(exports, {
    getMetadata: function() {
        return getMetadata;
    },
    processBuffer: function() {
        return processBuffer;
    },
    decodeBuffer: function() {
        return decodeBuffer;
    }
});
const _jestworker = require("next/dist/compiled/jest-worker");
const _path = /*#__PURE__*/ _interop_require_wildcard(require("path"));
const _utils = require("../../../shared/lib/utils");
const _os = require("os");
function _getRequireWildcardCache(nodeInterop) {
    if (typeof WeakMap !== "function") return null;
    var cacheBabelInterop = new WeakMap();
    var cacheNodeInterop = new WeakMap();
    return (_getRequireWildcardCache = function(nodeInterop) {
        return nodeInterop ? cacheNodeInterop : cacheBabelInterop;
    })(nodeInterop);
}
function _interop_require_wildcard(obj, nodeInterop) {
    if (!nodeInterop && obj && obj.__esModule) {
        return obj;
    }
    if (obj === null || typeof obj !== "object" && typeof obj !== "function") {
        return {
            default: obj
        };
    }
    var cache = _getRequireWildcardCache(nodeInterop);
    if (cache && cache.has(obj)) {
        return cache.get(obj);
    }
    var newObj = {};
    var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor;
    for(var key in obj){
        if (key !== "default" && 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;
}
const getWorker = (0, _utils.execOnce)(()=>new _jestworker.Worker(_path.resolve(__dirname, "impl"), {
        enableWorkerThreads: true,
        // There will be at most 6 workers needed since each worker will take
        // at least 1 operation type.
        numWorkers: Math.max(1, Math.min((0, _os.cpus)().length - 1, 6)),
        computeWorkerKey: (method)=>method
    }));
async function getMetadata(buffer) {
    const worker = getWorker();
    const { width, height } = await worker.decodeBuffer(buffer);
    return {
        width,
        height
    };
}
async function processBuffer(buffer, operations, encoding, quality) {
    const worker = getWorker();
    let imageData = await worker.decodeBuffer(buffer);
    for (const operation of operations){
        if (operation.type === "rotate") {
            imageData = await worker.rotate(imageData, operation.numRotations);
        } else if (operation.type === "resize") {
            const opt = {
                image: imageData,
                width: 0,
                height: 0
            };
            if (operation.width && imageData.width && imageData.width > operation.width) {
                opt.width = operation.width;
            }
            if (operation.height && imageData.height && imageData.height > operation.height) {
                opt.height = operation.height;
            }
            if (opt.width > 0 || opt.height > 0) {
                imageData = await worker.resize(opt);
            }
        }
    }
    switch(encoding){
        case "jpeg":
            return Buffer.from(await worker.encodeJpeg(imageData, {
                quality
            }));
        case "webp":
            return Buffer.from(await worker.encodeWebp(imageData, {
                quality
            }));
        case "avif":
            const avifQuality = quality - 20;
            return Buffer.from(await worker.encodeAvif(imageData, {
                quality: Math.max(avifQuality, 0)
            }));
        case "png":
            return Buffer.from(await worker.encodePng(imageData));
        default:
            throw Error(`Unsupported encoding format`);
    }
}
async function decodeBuffer(buffer) {
    const worker = getWorker();
    const imageData = await worker.decodeBuffer(buffer);
    return imageData;
}

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