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| |
| #ifndef QT3DCORE_QFRAMEALLOCATOR_P_H |
| #define QT3DCORE_QFRAMEALLOCATOR_P_H |
| |
| // |
| // W A R N I N G |
| // ------------- |
| // |
| // This file is not part of the Qt API. It exists for the convenience |
| // of other Qt classes. This header file may change from version to |
| // version without notice, or even be removed. |
| // |
| // We mean it. |
| // |
| |
| #ifdef QFRAMEALLOCATOR_DEBUG |
| #include <valgrind/valgrind.h> |
| #include <valgrind/memcheck.h> |
| #endif |
| |
| #include <QtCore/QDebug> |
| #include <QtCore/QScopedPointer> |
| #include <QtCore/QVector> |
| |
| #include <Qt3DCore/private/qt3dcore_global_p.h> |
| |
| QT_BEGIN_NAMESPACE |
| |
| namespace Qt3DCore { |
| |
| class QFrameAllocatorPrivate; |
| |
| class Q_3DCORE_PRIVATE_EXPORT QFrameAllocator |
| { |
| public: |
| explicit QFrameAllocator(uint maxObjectSize, uint alignment = 16, uint pageSize = 128); |
| ~QFrameAllocator(); |
| |
| template<typename T> |
| T* allocate() |
| { |
| void* ptr = allocateRawMemory(sizeof(T)); |
| new (ptr) T(); // Don't forget to call the constructor of the object using the placement new operator |
| return static_cast<T*>(ptr); |
| } |
| |
| template<typename T> |
| void deallocate(T *ptr) |
| { |
| ptr->~T(); // Call destructor |
| deallocateRawMemory(ptr, sizeof(T)); |
| } |
| |
| void* allocateRawMemory(size_t size); |
| |
| void deallocateRawMemory(void *ptr, size_t size); |
| |
| void clear(); |
| void trim(); |
| uint maxObjectSize() const; |
| uint totalChunkCount() const; |
| int allocatorPoolSize() const; |
| bool isEmpty() const; |
| |
| private: |
| Q_DECLARE_PRIVATE(QFrameAllocator) |
| const QScopedPointer<QFrameAllocatorPrivate> d_ptr; |
| }; |
| |
| } // Qt3D |
| |
| QT_END_NAMESPACE |
| |
| #endif // QFRAMEALLOCATOR_P_H |