mirror of
https://github.com/Xaymar/obs-StreamFX
synced 2024-11-30 23:33:02 +00:00
60 lines
1.9 KiB
C++
60 lines
1.9 KiB
C++
/*
|
|
* Modern effects for a modern Streamer
|
|
* Copyright (C) 2017 Michael Fabian Dirks
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
|
|
*/
|
|
|
|
#include "util-memory.h"
|
|
#include <cstdlib>
|
|
#define USE_STD_ALLOC_FREE
|
|
|
|
void* util::malloc_aligned(size_t align, size_t size) {
|
|
#ifdef USE_STD_ALLOC_FREE
|
|
#if defined(_MSC_VER)
|
|
return _aligned_malloc(size, align);
|
|
#else
|
|
return aligned_malloc(align, size);
|
|
#endif
|
|
#else
|
|
// Ensure that we have space for the pointer and the data.
|
|
size_t asize = aligned_offset(align, size + (sizeof(void*) * 2));
|
|
|
|
// Allocate memory and store integer representation of pointer.
|
|
void* ptr = malloc(asize);
|
|
|
|
// Calculate actual aligned position
|
|
intptr_t ptr_off = aligned_offset(align, reinterpret_cast<size_t>(ptr) + sizeof(void*));
|
|
|
|
// Store actual pointer at ptr_off - sizeof(void*).
|
|
*reinterpret_cast<intptr_t*>(ptr_off - sizeof(void*)) = reinterpret_cast<intptr_t>(ptr);
|
|
|
|
// Return aligned pointer
|
|
return reinterpret_cast<void*>(ptr_off);
|
|
#endif
|
|
}
|
|
|
|
void util::free_aligned(void* mem) {
|
|
#ifdef USE_STD_ALLOC_FREE
|
|
#if defined(_MSC_VER)
|
|
_aligned_free(mem);
|
|
#else
|
|
free(mem);
|
|
#endif
|
|
#else
|
|
void* ptr = reinterpret_cast<void*>(*reinterpret_cast<intptr_t*>(static_cast<char*>(mem) - sizeof(void*)));
|
|
free(ptr);
|
|
#endif
|
|
}
|