mirror of
https://github.com/love2d/love.git
synced 2026-08-12 08:30:56 +02:00
Nicola Orlando
a9961b7c70
posix_memalign returns false on success; using == 0 instead of != 0 reverses it, allowing alignedMalloc to return true on success and false otherwise (mimicking what happens under Windows). --HG-- branch : Nixola/reversed-alignedmalloc-return-value-posi-1512135128149
71 lines
1.7 KiB
C++
71 lines
1.7 KiB
C++
/**
|
|
* Copyright (c) 2006-2017 LOVE Development Team
|
|
*
|
|
* This software is provided 'as-is', without any express or implied
|
|
* warranty. In no event will the authors be held liable for any damages
|
|
* arising from the use of this software.
|
|
*
|
|
* Permission is granted to anyone to use this software for any purpose,
|
|
* including commercial applications, and to alter it and redistribute it
|
|
* freely, subject to the following restrictions:
|
|
*
|
|
* 1. The origin of this software must not be misrepresented; you must not
|
|
* claim that you wrote the original software. If you use this software
|
|
* in a product, an acknowledgment in the product documentation would be
|
|
* appreciated but is not required.
|
|
* 2. Altered source versions must be plainly marked as such, and must not be
|
|
* misrepresented as being the original software.
|
|
* 3. This notice may not be removed or altered from any source distribution.
|
|
**/
|
|
|
|
#include "config.h"
|
|
#include "memory.h"
|
|
|
|
#include <stdlib.h>
|
|
|
|
#ifdef LOVE_WINDOWS
|
|
#include <malloc.h>
|
|
#else
|
|
#include <unistd.h> // Assume POSIX support.
|
|
#endif
|
|
|
|
namespace love
|
|
{
|
|
|
|
bool alignedMalloc(void **mem, size_t size, size_t alignment)
|
|
{
|
|
#ifdef LOVE_WINDOWS
|
|
*mem = _aligned_malloc(size, alignment);
|
|
return *mem != nullptr;
|
|
#else
|
|
return posix_memalign(mem, alignment, size) == 0;
|
|
#endif
|
|
}
|
|
|
|
void alignedFree(void *mem)
|
|
{
|
|
#ifdef LOVE_WINDOWS
|
|
_aligned_free(mem);
|
|
#else
|
|
free(mem);
|
|
#endif
|
|
}
|
|
|
|
size_t getPageSize()
|
|
{
|
|
#ifdef LOVE_WINDOWS
|
|
// TODO: Do an actual query.
|
|
return 4096;
|
|
#else
|
|
static const long size = sysconf(_SC_PAGESIZE);
|
|
return size > 0 ? (size_t) size : 4096;
|
|
#endif
|
|
}
|
|
|
|
size_t alignUp(size_t size, size_t alignment)
|
|
{
|
|
return (size + alignment - 1) & (~(alignment - 1));
|
|
}
|
|
|
|
} // love
|