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/*=========================================================================
*
* Copyright NumFOCUS
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0.txt
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*=========================================================================*/
#ifndef itkGPUImageDataManager_h
#define itkGPUImageDataManager_h
#include "itkObject.h"
#include "itkTimeStamp.h"
#include "itkLightObject.h"
#include "itkObjectFactory.h"
#include "itkOpenCLUtil.h"
#include "itkGPUDataManager.h"
#include "itkGPUContextManager.h"
#include <mutex>
namespace itk
{
template <typename TPixel, unsigned int VDimension>
class GPUImage;
/**
* \class GPUImageDataManager
*
* DataManager for GPUImage. This class will take care of data synchronization
* between CPU Image and GPU Image.
*
* \ingroup ITKGPUCommon
*/
template <typename ImageType>
class ITK_TEMPLATE_EXPORT GPUImageDataManager : public GPUDataManager
{
// allow GPUKernelManager to access GPU buffer pointer
friend class GPUKernelManager;
friend class GPUImage<typename ImageType::PixelType, ImageType::ImageDimension>;
public:
ITK_DISALLOW_COPY_AND_MOVE(GPUImageDataManager);
using Self = GPUImageDataManager;
using Superclass = GPUDataManager;
using Pointer = SmartPointer<Self>;
using ConstPointer = SmartPointer<const Self>;
itkNewMacro(Self);
itkOverrideGetNameOfClassMacro(GPUImageDataManager);
static constexpr unsigned int ImageDimension = ImageType::ImageDimension;
itkGetModifiableObjectMacro(GPUBufferedRegionIndex, GPUDataManager);
itkGetModifiableObjectMacro(GPUBufferedRegionSize, GPUDataManager);
void
SetImagePointer(ImageType * img);
ImageType *
GetImagePointer()
{
return this->m_Image.GetPointer();
}
/** actual GPU->CPU memory copy takes place here */
virtual void
MakeCPUBufferUpToDate();
/** actual CPU->GPU memory copy takes place here */
virtual void
MakeGPUBufferUpToDate();
protected:
GPUImageDataManager() = default;
~GPUImageDataManager() override = default;
private:
WeakPointer<ImageType> m_Image{}; // WeakPointer has to be used here
// to avoid SmartPointer loop
int m_BufferedRegionIndex[ImageType::ImageDimension]{};
int m_BufferedRegionSize[ImageType::ImageDimension]{};
typename GPUDataManager::Pointer m_GPUBufferedRegionIndex{};
typename GPUDataManager::Pointer m_GPUBufferedRegionSize{};
};
} // namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
# include "itkGPUImageDataManager.hxx"
#endif
#endif
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