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Allow DataView as AllowSharedBufferSource

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Vanilagy
2025-07-07 10:40:28 +02:00
parent 39df195ada
commit f78fc697cd
4 changed files with 11 additions and 12 deletions
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src/misc.ts
+7 -4
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@@ -134,7 +134,9 @@ export const writeBits = (bytes: Uint8Array, start: number, end: number, value:
};
export const toUint8Array = (source: AllowSharedBufferSource): Uint8Array => {
if (source instanceof ArrayBuffer) {
if (source instanceof Uint8Array) {
return source;
} else if (source instanceof ArrayBuffer) {
return new Uint8Array(source);
} else {
return new Uint8Array(source.buffer, source.byteOffset, source.byteLength);
@@ -142,7 +144,9 @@ export const toUint8Array = (source: AllowSharedBufferSource): Uint8Array => {
};
export const toDataView = (source: AllowSharedBufferSource) => {
if (source instanceof ArrayBuffer) {
if (source instanceof DataView) {
return source;
} else if (source instanceof ArrayBuffer) {
return new DataView(source);
} else {
return new DataView(source.buffer, source.byteOffset, source.byteLength);
@@ -202,11 +206,10 @@ export const colorSpaceIsComplete = (
};
export const isAllowSharedBufferSource = (x: unknown) => {
// Quite a mouthful:
return (
x instanceof ArrayBuffer
|| (typeof SharedArrayBuffer !== 'undefined' && x instanceof SharedArrayBuffer)
|| (ArrayBuffer.isView(x) && !(x instanceof DataView))
|| ArrayBuffer.isView(x)
);
};