/usr/include/ITK-4.9/itkGPUImage.hxx is in libinsighttoolkit4-dev 4.9.0-4ubuntu1.
This file is owned by root:root, with mode 0o644.
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*
* Copyright Insight Software Consortium
*
* 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
*
* http://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 itkGPUImage_hxx
#define itkGPUImage_hxx
#include "itkGPUImage.h"
namespace itk
{
template <typename TPixel, unsigned int VImageDimension>
GPUImage< TPixel, VImageDimension >::GPUImage()
{
m_DataManager = GPUImageDataManager< GPUImage< TPixel, VImageDimension > >::New();
m_DataManager->SetTimeStamp( this->GetTimeStamp() );
}
template <typename TPixel, unsigned int VImageDimension>
GPUImage< TPixel, VImageDimension >::~GPUImage()
{
}
template <typename TPixel, unsigned int VImageDimension>
void GPUImage< TPixel, VImageDimension >::Allocate(bool initialize)
{
// allocate CPU memory - calling Allocate() in superclass
Superclass::Allocate(initialize);
// allocate GPU memory
this->ComputeOffsetTable();
unsigned long numPixel = this->GetOffsetTable()[VImageDimension];
m_DataManager->SetBufferSize( sizeof(TPixel)*numPixel );
m_DataManager->SetImagePointer( this );
m_DataManager->SetCPUBufferPointer( Superclass::GetBufferPointer() );
m_DataManager->Allocate();
/* prevent unnecessary copy from CPU to GPU at the beginning */
m_DataManager->SetTimeStamp( this->GetTimeStamp() );
}
template< typename TPixel, unsigned int VImageDimension >
void GPUImage< TPixel, VImageDimension >::Initialize()
{
// CPU image initialize
Superclass::Initialize();
// GPU image initialize
m_DataManager->Initialize();
this->ComputeOffsetTable();
unsigned long numPixel = this->GetOffsetTable()[VImageDimension];
m_DataManager->SetBufferSize( sizeof(TPixel)*numPixel );
m_DataManager->SetImagePointer( this );
m_DataManager->SetCPUBufferPointer( Superclass::GetBufferPointer() );
m_DataManager->Allocate();
/* prevent unnecessary copy from CPU to GPU at the beginning */
m_DataManager->SetTimeStamp( this->GetTimeStamp() );
}
template <typename TPixel, unsigned int VImageDimension>
void GPUImage< TPixel, VImageDimension >::FillBuffer(const TPixel & value)
{
m_DataManager->SetGPUBufferDirty();
Superclass::FillBuffer( value );
}
template <typename TPixel, unsigned int VImageDimension>
void GPUImage< TPixel, VImageDimension >::SetPixel(const IndexType & index, const TPixel & value)
{
m_DataManager->SetGPUBufferDirty();
Superclass::SetPixel( index, value );
}
template <typename TPixel, unsigned int VImageDimension>
const TPixel & GPUImage< TPixel, VImageDimension >::GetPixel(const IndexType & index) const
{
m_DataManager->UpdateCPUBuffer();
return Superclass::GetPixel( index );
}
template <typename TPixel, unsigned int VImageDimension>
TPixel & GPUImage< TPixel, VImageDimension >::GetPixel(const IndexType & index)
{
/* Original version - very conservative
m_DataManager->SetGPUBufferDirty();
return Superclass::GetPixel( index );
*/
m_DataManager->UpdateCPUBuffer();
return Superclass::GetPixel( index );
}
template <typename TPixel, unsigned int VImageDimension>
TPixel & GPUImage< TPixel, VImageDimension >::operator[] (const IndexType &index)
{
/* Original version - very conservative
m_DataManager->SetGPUBufferDirty();
return Superclass::operator[]( index );
*/
m_DataManager->UpdateCPUBuffer();
return Superclass::operator[] ( index );
}
template <typename TPixel, unsigned int VImageDimension>
const TPixel & GPUImage< TPixel, VImageDimension >::operator[] (const IndexType &index) const
{
m_DataManager->UpdateCPUBuffer();
return Superclass::operator[] ( index );
}
template <typename TPixel, unsigned int VImageDimension>
void GPUImage< TPixel, VImageDimension >::SetPixelContainer(PixelContainer *container)
{
Superclass::SetPixelContainer( container );
m_DataManager->SetCPUDirtyFlag( false );
m_DataManager->SetGPUDirtyFlag( true );
}
template <typename TPixel, unsigned int VImageDimension>
void GPUImage< TPixel, VImageDimension >::UpdateBuffers()
{
m_DataManager->UpdateCPUBuffer();
m_DataManager->UpdateGPUBuffer();
}
template <typename TPixel, unsigned int VImageDimension>
TPixel* GPUImage< TPixel, VImageDimension >::GetBufferPointer()
{
/* Original version - very conservative
* Always set GPU dirty (even though pixel values are not modified)
m_DataManager->SetGPUBufferDirty();
return Superclass::GetBufferPointer();
*/
/* less conservative version - if you modify pixel value using
* this pointer then you must set the image as modified manually!!! */
m_DataManager->UpdateCPUBuffer();
return Superclass::GetBufferPointer();
}
template <typename TPixel, unsigned int VImageDimension>
const TPixel * GPUImage< TPixel, VImageDimension >::GetBufferPointer() const
{
// const does not change buffer, but if CPU is dirty then make it up-to-date
m_DataManager->UpdateCPUBuffer();
return Superclass::GetBufferPointer();
}
template <typename TPixel, unsigned int VImageDimension>
GPUDataManager::Pointer
GPUImage< TPixel, VImageDimension >::GetGPUDataManager() const
{
typedef typename GPUImageDataManager< GPUImage >::Superclass GPUImageDataSuperclass;
typedef typename GPUImageDataSuperclass::Pointer GPUImageDataSuperclassPointer;
return static_cast< GPUImageDataSuperclassPointer >( m_DataManager.GetPointer() );
//return m_DataManager.GetPointer();
}
template <typename TPixel, unsigned int VImageDimension>
void
GPUImage< TPixel, VImageDimension >::Graft(const DataObject *data)
{
typedef GPUImageDataManager< GPUImage > GPUImageDataManagerType;
// call the superclass' implementation
Superclass::Graft(data);
// Pass regular pointer to Graft() instead of smart pointer due to type
// casting problem
GPUImageDataManagerType* ptr = dynamic_cast<GPUImageDataManagerType*>(
( ( (GPUImage*)data)->GetGPUDataManager() ).GetPointer() );
// Debug
//std::cout << "GPU timestamp : " << m_DataManager->GetMTime() << ", CPU
// timestamp : " << this->GetMTime() << std::endl;
// call GPU data graft function
m_DataManager->SetImagePointer( this );
m_DataManager->Graft( ptr );
// Synchronize timestamp of GPUImage and GPUDataManager
m_DataManager->SetTimeStamp( this->GetTimeStamp() );
// Debug
//std::cout << "GPU timestamp : " << m_DataManager->GetMTime() << ", CPU
// timestamp : " << this->GetMTime() << std::endl;
}
} // namespace itk
#endif
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