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63 lines
2.3 KiB
63 lines
2.3 KiB
/****************************************************************************
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Copyright (c) 2021-2023 Xiamen Yaji Software Co., Ltd.
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http://www.cocos.com
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights to
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use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
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of the Software, and to permit persons to whom the Software is furnished to do so,
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subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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****************************************************************************/
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#include "3d/misc/BufferBlob.h"
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#include "core/TypedArray.h"
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namespace cc {
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void BufferBlob::setNextAlignment(uint32_t align) {
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if (align != 0) {
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const uint32_t remainder = _length % align;
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if (remainder != 0) {
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const uint32_t padding = align - remainder;
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_arrayBufferOrPaddings.emplace_back(padding);
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_length += padding;
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}
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}
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}
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uint32_t BufferBlob::addBuffer(ArrayBuffer *arrayBuffer) {
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const uint32_t result = _length;
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_arrayBufferOrPaddings.emplace_back(arrayBuffer);
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_length += arrayBuffer->byteLength();
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return result;
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}
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ArrayBuffer::Ptr BufferBlob::getCombined() {
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Int8Array result(_length);
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uint32_t counter = 0;
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for (const auto &arrayBufferOrPadding : _arrayBufferOrPaddings) {
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if (const auto *p = ccstd::get_if<uint32_t>(&arrayBufferOrPadding)) {
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counter += *p;
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} else if (const auto *p = ccstd::get_if<ArrayBuffer::Ptr>(&arrayBufferOrPadding)) {
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result.set(*p, counter);
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counter += (*p)->byteLength();
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}
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}
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return result.buffer();
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}
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} // namespace cc
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