You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
131 lines
3.9 KiB
131 lines
3.9 KiB
/*==LICENSE==* |
|
|
|
CyanWorlds.com Engine - MMOG client, server and tools |
|
Copyright (C) 2011 Cyan Worlds, Inc. |
|
|
|
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 3 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, see <http://www.gnu.org/licenses/>. |
|
|
|
Additional permissions under GNU GPL version 3 section 7 |
|
|
|
If you modify this Program, or any covered work, by linking or |
|
combining it with any of RAD Game Tools Bink SDK, Autodesk 3ds Max SDK, |
|
NVIDIA PhysX SDK, Microsoft DirectX SDK, OpenSSL library, Independent |
|
JPEG Group JPEG library, Microsoft Windows Media SDK, or Apple QuickTime SDK |
|
(or a modified version of those libraries), |
|
containing parts covered by the terms of the Bink SDK EULA, 3ds Max EULA, |
|
PhysX SDK EULA, DirectX SDK EULA, OpenSSL and SSLeay licenses, IJG |
|
JPEG Library README, Windows Media SDK EULA, or QuickTime SDK EULA, the |
|
licensors of this Program grant you additional |
|
permission to convey the resulting work. Corresponding Source for a |
|
non-source form of such a combination shall include the source code for |
|
the parts of OpenSSL and IJG JPEG Library used as well as that of the covered |
|
work. |
|
|
|
You can contact Cyan Worlds, Inc. by email legal@cyan.com |
|
or by snail mail at: |
|
Cyan Worlds, Inc. |
|
14617 N Newport Hwy |
|
Mead, WA 99021 |
|
|
|
*==LICENSE==*/ |
|
|
|
#ifndef _HS_ALIGNED_ALLOCATOR_H |
|
#define _HS_ALIGNED_ALLOCATOR_H |
|
|
|
#include "HeadSpin.h" |
|
#include <stdexcept> |
|
#include <new> |
|
|
|
template<class T, size_t ALIGNMENT=16> |
|
|
|
/** |
|
* An aligned allocator for storing SIMD ready values in STL containers |
|
* \remarks Based on https://gist.github.com/donny-dont/1471329 |
|
*/ |
|
class hsAlignedAllocator |
|
{ |
|
hsAlignedAllocator& operator=(const hsAlignedAllocator&) { } |
|
|
|
public: |
|
template <typename U, size_t ALIGN=16> |
|
struct rebind |
|
{ |
|
typedef hsAlignedAllocator<U, ALIGN> other; |
|
}; |
|
|
|
typedef T* pointer; |
|
typedef const T* const_pointer; |
|
typedef T& reference; |
|
typedef const T& const_reference; |
|
typedef T value_type; |
|
typedef size_t size_type; |
|
typedef ptrdiff_t difference_type; |
|
|
|
hsAlignedAllocator() { } |
|
hsAlignedAllocator(const hsAlignedAllocator&) { } |
|
template <typename U> hsAlignedAllocator(const hsAlignedAllocator<U, ALIGNMENT>&) { } |
|
~hsAlignedAllocator() { } |
|
|
|
pointer address(reference r) const { return &r; } |
|
const_pointer address(const_reference r) const { return &r; } |
|
|
|
pointer allocate(size_type size, const_pointer hint=nullptr) |
|
{ |
|
if (size == 0) |
|
return nullptr; |
|
if (size > max_size()) |
|
throw std::length_error("integer overflow"); |
|
|
|
#ifdef HS_BUILD_FOR_WIN32 |
|
void* ptr = _aligned_malloc(size * sizeof(value_type), ALIGNMENT); |
|
#else |
|
void* ptr = nullptr; |
|
posix_memalign(&ptr, ALIGNMENT, size * sizeof(value_type)); |
|
#endif // HS_BUILD_FOR_WIN32 |
|
|
|
if (!ptr) |
|
throw std::bad_alloc(); |
|
return static_cast<pointer>(ptr); |
|
} |
|
|
|
void construct(T* const p, const_reference t) const |
|
{ |
|
void * const pv = static_cast<void *>(p); |
|
new (pv) value_type(t); |
|
} |
|
|
|
|
|
void deallocate(pointer ptr, size_type size) |
|
{ |
|
#ifdef HS_BUILD_FOR_WIN32 |
|
_aligned_free(ptr); |
|
#else |
|
free(ptr); |
|
#endif // HS_BUILD_FOR_WIN32 |
|
} |
|
|
|
void destroy(T* const p) const |
|
{ |
|
p->~T(); |
|
} |
|
|
|
size_type max_size() const |
|
{ |
|
return static_cast<size_t>(-1) / sizeof(value_type); |
|
} |
|
|
|
bool operator==(const hsAlignedAllocator& other) const { return true; } |
|
}; |
|
|
|
#endif // _HS_ALIGNED_ALLOCATOR_H
|
|
|