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starting work on glb(s) management 2

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Yeicor
2024-02-16 21:49:01 +01:00
parent ee160c1ee4
commit 7f7ff86f9f
1 changed files with 16 additions and 20 deletions
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36
src/models/glb/glbs.ts
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@@ -51,28 +51,24 @@ async function singleBlob(reader: ReadableStream<Uint8Array>, stopAfter: number
// Make sure the reader reads the entire stream at once.
const readerImpl = reader.getReader();
let bufferedChunks: Uint8Array = new Uint8Array();
try {
let done = false;
let length = 0;
while (!done) {
let {value, done: d} = await readerImpl.read();
if (value) {
// TODO: This is inefficient. We should be able to avoid copying the buffer each time. byob?
let oldBuffer = bufferedChunks;
let newLength = bufferedChunks.length + value.length;
if (stopAfter !== null && newLength > stopAfter) {
newLength = stopAfter;
value = value.slice(0, stopAfter - bufferedChunks.length);
}
bufferedChunks = new Uint8Array(newLength);
bufferedChunks.set(oldBuffer);
bufferedChunks.set(value, length);
length += value.length;
let done = false;
let length = 0;
while (!done) {
let {value, done: d} = await readerImpl.read();
if (value) {
// TODO: This is inefficient. We should be able to avoid copying the buffer each time. byob?
let oldBuffer = bufferedChunks;
let newLength = bufferedChunks.length + value.length;
if (stopAfter !== null && newLength > stopAfter) {
newLength = stopAfter;
value = value.slice(0, stopAfter - bufferedChunks.length);
}
done = d;
bufferedChunks = new Uint8Array(newLength);
bufferedChunks.set(oldBuffer);
bufferedChunks.set(value, length);
length += value.length;
}
} finally {
await readerImpl.cancel();
done = d;
}
return new ReadableStream<Uint8Array>({
start(controller) {