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/****************************************************************************
**
** Copyright (C) 2008-2012 NVIDIA Corporation.
** Copyright (C) 2017 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt 3D Studio.
**
** $QT_BEGIN_LICENSE:GPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 or (at your option) any later version
** approved by the KDE Free Qt Foundation. The licenses are as published by
** the Free Software Foundation and appearing in the file LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QT3DS_FOUNDATION_PSALLOCATOR_H
#define QT3DS_FOUNDATION_PSALLOCATOR_H
#include "foundation/Qt3DSAllocatorCallback.h"
#include "foundation/Qt3DS.h"
#include "foundation/Qt3DSAssert.h"
#if (defined(QT3DS_WINDOWS) | defined(QT3DS_X360))
#if _MSC_VER < 1920 // 1920+ = MSVC2019
#include <typeinfo.h>
#else
#include <typeinfo>
#endif
#endif
#if (defined(QT3DS_APPLE))
#include <typeinfo>
#endif
#include <new>
// Allocation macros going through user allocator
#define QT3DS_ALLOC(alloc, n, name) alloc.allocate(n, name, __FILE__, __LINE__)
#define QT3DS_ALLOC_TEMP(alloc, n, name) QT3DS_ALLOC(n, name)
#define QT3DS_FREE(alloc, x) alloc.deallocate(x)
#define QT3DS_FREE_AND_RESET(x) \
{ \
QT3DS_FREE(x); \
x = 0; \
}
// The following macros support plain-old-types and classes derived from UserAllocated.
#define QT3DS_NEW(alloc, T) new (QT3DS_ALLOC(alloc, sizeof(T), #T)) T
#define QT3DS_NEW_TEMP(alloc, T) QT3DS_NEW(alloc, T)
#define QT3DS_DELETE_POD(x) \
{ \
QT3DS_FREE(x); \
x = 0; \
}
namespace qt3ds {
namespace foundation {
template <typename TObjType>
inline void NVDelete(NVAllocatorCallback &alloc, TObjType *item)
{
if (item) {
item->~TObjType();
alloc.deallocate(item);
}
}
}
}
//! placement new macro to make it easy to spot bad use of 'new'
#define QT3DS_PLACEMENT_NEW(p, T) new (p) T
// Don't use inline for alloca !!!
#ifdef QT3DS_WINDOWS
#include <malloc.h>
#define NVAlloca(x) _alloca(x)
#elif defined(QT3DS_LINUX) || defined(QT3DS_ANDROID) || defined(QT3DS_QNX)
#if defined(__INTEGRITY)
#include <alloca.h>
#else
#include <malloc.h>
#endif
#define NVAlloca(x) alloca(x)
#elif defined(QT3DS_PSP2)
#include <alloca.h>
#define NVAlloca(x) alloca(x)
#elif defined(QT3DS_APPLE)
#include <stdlib.h>
#include <alloca.h>
#define NVAlloca(x) alloca(x)
#elif defined(QT3DS_PS3)
#include <alloca.h>
#define NVAlloca(x) alloca(x)
#elif defined(QT3DS_X360)
#include <malloc.h>
#define NVAlloca(x) _alloca(x)
#elif defined(QT3DS_WII)
#include <alloca.h>
#define NVAlloca(x) alloca(x)
#endif
namespace qt3ds {
namespace foundation {
/*
* Bootstrap allocator using malloc/free.
* Don't use unless your objects get allocated before foundation is initialized.
*/
class RawAllocator
{
public:
RawAllocator(const char * = 0) {}
void *allocate(size_t size, const char *, int)
{
#if defined(QT3DS_APPLE)
// malloc returns valid pointer for size==0, no need to check
return malloc(size);
#else
// malloc returns valid pointer for size==0, no need to check
return ::malloc(size);
#endif
}
void deallocate(void *ptr)
{
#if defined(QT3DS_APPLE)
free(ptr);
#else
// free(0) is guaranteed to have no side effect, no need to check
::free(ptr);
#endif
}
};
struct ForwardingAllocator
{
NVAllocatorCallback *mAllocator;
const char *mTypeName;
ForwardingAllocator(const char *typeName)
: mTypeName(typeName)
{
}
ForwardingAllocator(NVAllocatorCallback &alloc, const char *typeName)
: mAllocator(&alloc)
, mTypeName(typeName)
{
}
ForwardingAllocator(NVAllocatorCallback *alloc = NULL)
: mAllocator(alloc)
, mTypeName("__error__")
{
QT3DS_ASSERT(false);
}
ForwardingAllocator(const ForwardingAllocator &other)
: mAllocator(other.mAllocator)
, mTypeName(other.mTypeName)
{
}
ForwardingAllocator &operator=(const ForwardingAllocator &other)
{
mAllocator = other.mAllocator;
mTypeName = other.mTypeName;
return *this;
}
bool operator==(const ForwardingAllocator &other) const
{
return mAllocator == other.mAllocator;
}
NVAllocatorCallback &getAllocator() { return *mAllocator; }
// flags are unused
void *allocate(size_t size, const char *filename, int line, int flags = 0)
{
return getAllocator().allocate(size, mTypeName, filename, line, flags);
}
void *allocate(size_t size, const char *filename, int line, size_t alignment,
size_t alignmentOffset)
{
return getAllocator().allocate(size, mTypeName, filename, line, alignment,
alignmentOffset);
}
void deallocate(void *ptr, size_t) { getAllocator().deallocate(ptr); }
void deallocate(void *ptr) { getAllocator().deallocate(ptr); }
};
} // namespace foundation
} // namespace qt3ds
#endif
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