mirror of
https://github.com/Xaymar/obs-StreamFX
synced 2024-11-14 07:45:06 +00:00
98 lines
2.5 KiB
C++
98 lines
2.5 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
|
|
*/
|
|
|
|
#pragma once
|
|
#include <stdlib.h>
|
|
#include <malloc.h>
|
|
|
|
namespace util {
|
|
inline size_t aligned_offset(size_t align, size_t pos) {
|
|
return ((pos / align) + 1) * align;
|
|
}
|
|
void* malloc_aligned(size_t align, size_t size);
|
|
void free_aligned(void* mem);
|
|
|
|
template <typename T, size_t N = 16>
|
|
class AlignmentAllocator {
|
|
public:
|
|
typedef T value_type;
|
|
typedef size_t size_type;
|
|
typedef std::ptrdiff_t difference_type;
|
|
|
|
typedef T * pointer;
|
|
typedef const T * const_pointer;
|
|
|
|
typedef T & reference;
|
|
typedef const T & const_reference;
|
|
|
|
public:
|
|
inline AlignmentAllocator() throw () {}
|
|
|
|
template <typename T2>
|
|
inline AlignmentAllocator(const AlignmentAllocator<T2, N> &) throw () {}
|
|
|
|
inline ~AlignmentAllocator() throw () {}
|
|
|
|
inline pointer adress(reference r) {
|
|
return &r;
|
|
}
|
|
|
|
inline const_pointer adress(const_reference r) const {
|
|
return &r;
|
|
}
|
|
|
|
inline pointer allocate(size_type n) {
|
|
return (pointer)malloc_aligned(n*sizeof(value_type), N);
|
|
}
|
|
|
|
inline void deallocate(pointer p, size_type) {
|
|
free_aligned(p);
|
|
}
|
|
|
|
inline void construct(pointer p, const value_type & wert) {
|
|
new (p)value_type(wert);
|
|
}
|
|
|
|
inline void destroy(pointer p) {
|
|
p->~value_type();
|
|
p;
|
|
}
|
|
|
|
inline size_type max_size() const throw () {
|
|
return size_type(-1) / sizeof(value_type);
|
|
}
|
|
|
|
template <typename T2>
|
|
struct rebind {
|
|
typedef AlignmentAllocator<T2, N> other;
|
|
};
|
|
|
|
bool operator!=(const AlignmentAllocator<T, N>& other) const {
|
|
return !(*this == other);
|
|
}
|
|
|
|
// Returns true if and only if storage allocated from *this
|
|
// can be deallocated from other, and vice versa.
|
|
// Always returns true for stateless allocators.
|
|
bool operator==(const AlignmentAllocator<T, N>& other) const {
|
|
return true;
|
|
}
|
|
};
|
|
};
|
|
|