Misaki
56 lines
1.2 KiB
C++
56 lines
1.2 KiB
C++
/**
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* Copyright(c) Live2D Inc. All rights reserved.
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*
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* Use of this source code is governed by the Live2D Open Software license
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* that can be found at https://www.live2d.com/eula/live2d-open-software-license-agreement_en.html.
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*/
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#include "LAppAllocator.hpp"
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#include "stdlib.h"
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using namespace Csm;
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void* LAppAllocator::Allocate(const csmSizeType size)
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{
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return malloc(size);
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}
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void LAppAllocator::Deallocate(void* memory)
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{
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free(memory);
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}
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void* LAppAllocator::AllocateAligned(const csmSizeType size, const csmUint32 alignment)
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{
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size_t offset, shift, alignedAddress;
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void* allocation;
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void** preamble;
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offset = alignment - 1 + sizeof(void*);
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allocation = Allocate(size + static_cast<csmUint32>(offset));
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alignedAddress = reinterpret_cast<size_t>(allocation) + sizeof(void*);
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shift = alignedAddress % alignment;
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if (shift)
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{
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alignedAddress += (alignment - shift);
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}
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preamble = reinterpret_cast<void**>(alignedAddress);
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preamble[-1] = allocation;
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return reinterpret_cast<void*>(alignedAddress);
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}
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void LAppAllocator::DeallocateAligned(void* alignedMemory)
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{
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void** preamble;
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preamble = static_cast<void**>(alignedMemory);
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Deallocate(preamble[-1]);
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}
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