pixi.js
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17 lines (15 loc) • 740 B
JavaScript
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function fastCopy(sourceBuffer, destinationBuffer) {
const lengthDouble = sourceBuffer.byteLength / 8 | 0;
const sourceFloat64View = new Float64Array(sourceBuffer, 0, lengthDouble);
const destinationFloat64View = new Float64Array(destinationBuffer, 0, lengthDouble);
destinationFloat64View.set(sourceFloat64View);
const remainingBytes = sourceBuffer.byteLength - lengthDouble * 8;
if (remainingBytes > 0) {
const sourceUint8View = new Uint8Array(sourceBuffer, lengthDouble * 8, remainingBytes);
const destinationUint8View = new Uint8Array(destinationBuffer, lengthDouble * 8, remainingBytes);
destinationUint8View.set(sourceUint8View);
}
}
export { fastCopy };
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