38 lines
1.4 KiB
Plaintext
38 lines
1.4 KiB
Plaintext
/*
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* Copyright (C) 2024 Huawei Device Co., Ltd.
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* Licensed under the Apache License, Version 2.0 (the 'License');
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an 'AS IS' BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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export function combineArrayBuffers(arrayBuffers: ArrayBuffer[]): ArrayBuffer {
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// 计算多个ArrayBuffer的总字节大小
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let totalByteLength = 0;
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for (const arrayBuffer of arrayBuffers) {
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totalByteLength += arrayBuffer.byteLength;
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}
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// 创建一个新的ArrayBuffer
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const combinedArrayBuffer = new ArrayBuffer(totalByteLength);
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// 创建一个Uint8Array来操作新的ArrayBuffer
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const combinedUint8Array = new Uint8Array(combinedArrayBuffer);
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// 依次复制每个ArrayBuffer的内容到新的ArrayBuffer中
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let offset = 0;
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for (const arrayBuffer of arrayBuffers) {
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const sourceUint8Array = new Uint8Array(arrayBuffer);
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combinedUint8Array.set(sourceUint8Array, offset);
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offset += sourceUint8Array.length;
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}
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return combinedArrayBuffer;
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} |