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