28 lines
580 B
JavaScript
28 lines
580 B
JavaScript
export class MemoryHelper {
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/**
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* @param {ArrayBuffer} buffer
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* @param {number} bitOffset
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* @param {boolean} value
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*/
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static writeSingleBit(buffer, bitOffset, value) {
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let view = new Uint8Array(buffer);
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const index = Math.floor(bitOffset / 8);
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bitOffset = bitOffset % 8;
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const byte = view[index];
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let newByte = 1 << bitOffset;
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if(value) {
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newByte = newByte | byte;
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}
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else {
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newByte = ~newByte & byte;
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}
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view[index] = newByte;
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}
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/**
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* @return {Number}
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*/
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static get sizeOfInt() {
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return 4;
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}
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} |