Files
upload-gltf/lib/texture-compression.ts
T
2026-04-27 23:43:16 +02:00

49 lines
1.1 KiB
TypeScript

import { extname } from 'path'
import sharp from 'sharp'
import { getErrorMessage } from './guards'
interface TextureCompressionResult {
buffer: Buffer
compressed: boolean
error?: string
}
export async function compressTextureBuffer(
filename: string,
buffer: Buffer,
): Promise<TextureCompressionResult> {
const ext = extname(filename).toLowerCase()
try {
if (ext === '.jpg' || ext === '.jpeg') {
return {
buffer: await sharp(buffer).jpeg({ quality: 82, mozjpeg: true }).toBuffer(),
compressed: true,
}
}
if (ext === '.png') {
return {
buffer: await sharp(buffer).png({ compressionLevel: 9, adaptiveFiltering: true }).toBuffer(),
compressed: true,
}
}
if (ext === '.webp') {
return {
buffer: await sharp(buffer).webp({ quality: 82 }).toBuffer(),
compressed: true,
}
}
} catch (err) {
const message = getErrorMessage(err, String(err))
return {
buffer,
compressed: false,
error: `Compression texture echouee pour ${filename}: ${message}`,
}
}
return { buffer, compressed: false }
}