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get sharp image generation working

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acalcutt 2024-12-21 19:53:34 -05:00 committed by Miko
parent f7883a26ad
commit d4c2ce1e4d
1 changed files with 24 additions and 8 deletions
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32
src/contour.js
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@ -61,15 +61,31 @@ export class LocalDemManager {
*/
async getImageData(blob, abortController) {
try {
const buffer = await blob.arrayBuffer();
const png = PNG.sync.read(Buffer.from(buffer));
const parsed = mlcontour.decodeParsedImage(
png.width,
png.height,
this.encoding,
png.data,
);
if (Boolean(abortController?.signal?.aborted)) return null;
const buffer = await blob.arrayBuffer();
const image = sharp(Buffer.from(buffer));
const metadata = await image.metadata();
if (Boolean(abortController?.signal?.aborted)) return null;
const { data, info } = await image
.ensureAlpha() // Ensure RGBA output
.raw()
.toBuffer({ resolveWithObject: true });
if (Boolean(abortController?.signal?.aborted)) return null;
const parsed = mlcontour.decodeParsedImage(
info.width,
info.height,
this.encoding,
data,
);
if (Boolean(abortController?.signal?.aborted)) return null;
return parsed;
} catch (error) {
console.error('Error processing image:', error);