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Fix deadlock when loading #3

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Fix deadlock when loading #3

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10 changes: 4 additions & 6 deletions index.html
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Original file line number Diff line number Diff line change
Expand Up @@ -167,13 +167,11 @@
if (entry.comp === 0) {
imgData = new Blob([compressed]);
} else if (entry.comp === 8) {
const ds = new DecompressionStream('deflate-raw'), writer = ds.writable.getWriter();
const ds = new DecompressionStream('deflate-raw'), writer = ds.writable.getWriter(), reader = ds.readable.getReader(), chunks = [];
const drain = (async () => { while (true) { const {value, done} = await reader.read(); if (done) break; chunks.push(value); } })();
await writer.write(compressed); await writer.close();
const reader = ds.readable.getReader(), chunks = [];
while (true) { const {value, done} = await reader.read(); if (done) break; chunks.push(value); }
const result = new Uint8Array(entry.usize); let pos = 0;
for (const chunk of chunks) { result.set(chunk, pos); pos += chunk.length; }
imgData = new Blob([result]);
await drain;
imgData = new Blob(chunks);
} else continue;
const imgUrl = URL.createObjectURL(imgData);
const img = document.createElement('img');
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