next
Version:
The React Framework
121 lines (120 loc) • 4.15 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.decodeBuffer = decodeBuffer;
exports.rotate = rotate;
exports.resize = resize;
exports.encodeJpeg = encodeJpeg;
exports.encodeWebp = encodeWebp;
exports.encodeAvif = encodeAvif;
exports.encodePng = encodePng;
var _semver = _interopRequireDefault(require("next/dist/compiled/semver"));
var _codecs = require("./codecs");
var _imageData = _interopRequireDefault(require("./image_data"));
function _interopRequireDefault(obj) {
return obj && obj.__esModule ? obj : {
default: obj
};
}
// Fixed in Node.js 16.5.0 and newer.
// See https://github.com/nodejs/node/pull/39337
// Eventually, remove this delay when engines is updated.
// See https://github.com/vercel/next.js/blob/1bcc923439f495a1717421e06af7e64c6003072c/packages/next/package.json#L249-L251
const FIXED_VERSION = "16.5.0";
const DELAY_MS = 1000;
let _promise;
function delayOnce(ms) {
if (!_promise) {
_promise = new Promise((resolve)=>{
setTimeout(resolve, ms);
});
}
return _promise;
}
function maybeDelay() {
const isAppleM1 = process.arch === "arm64" && process.platform === "darwin";
if (isAppleM1 && _semver.default.lt(process.version, FIXED_VERSION)) {
return delayOnce(DELAY_MS);
}
return Promise.resolve();
}
async function decodeBuffer(_buffer) {
var ref;
const buffer = Buffer.from(_buffer);
const firstChunk = buffer.slice(0, 16);
const firstChunkString = Array.from(firstChunk).map((v)=>String.fromCodePoint(v)).join("");
const key = (ref = Object.entries(_codecs.codecs).find(([, { detectors }])=>detectors.some((detector)=>detector.exec(firstChunkString)))) == null ? void 0 : ref[0];
if (!key) {
throw Error(`Buffer has an unsupported format`);
}
const encoder = _codecs.codecs[key];
const mod = await encoder.dec();
const rgba = mod.decode(new Uint8Array(buffer));
return rgba;
}
async function rotate(image, numRotations) {
image = _imageData.default.from(image);
const m = await _codecs.preprocessors["rotate"].instantiate();
return await m(image.data, image.width, image.height, {
numRotations
});
}
async function resize({ image , width , height }) {
image = _imageData.default.from(image);
const p = _codecs.preprocessors["resize"];
const m = await p.instantiate();
await maybeDelay();
return await m(image.data, image.width, image.height, {
...p.defaultOptions,
width,
height
});
}
async function encodeJpeg(image, { quality }) {
image = _imageData.default.from(image);
const e = _codecs.codecs["mozjpeg"];
const m = await e.enc();
await maybeDelay();
const r = await m.encode(image.data, image.width, image.height, {
...e.defaultEncoderOptions,
quality
});
return Buffer.from(r);
}
async function encodeWebp(image, { quality }) {
image = _imageData.default.from(image);
const e = _codecs.codecs["webp"];
const m = await e.enc();
await maybeDelay();
const r = await m.encode(image.data, image.width, image.height, {
...e.defaultEncoderOptions,
quality
});
return Buffer.from(r);
}
async function encodeAvif(image, { quality }) {
image = _imageData.default.from(image);
const e = _codecs.codecs["avif"];
const m = await e.enc();
await maybeDelay();
const val = e.autoOptimize.min || 62;
const r = await m.encode(image.data, image.width, image.height, {
...e.defaultEncoderOptions,
// Think of cqLevel as the "amount" of quantization (0 to 62),
// so a lower value yields higher quality (0 to 100).
cqLevel: Math.round(val - quality / 100 * val)
});
return Buffer.from(r);
}
async function encodePng(image) {
image = _imageData.default.from(image);
const e = _codecs.codecs["oxipng"];
const m = await e.enc();
await maybeDelay();
const r = await m.encode(image.data, image.width, image.height, {
...e.defaultEncoderOptions
});
return Buffer.from(r);
}
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