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/*=========================================================================
*
* Copyright UMC Utrecht and contributors
*
* 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 itkGPUInterpolateImageFunction_hxx
#define itkGPUInterpolateImageFunction_hxx
#include "itkGPUInterpolateImageFunction.h"
#include "itkOpenCLOstreamSupport.h"
// begin of unnamed namespace
namespace
{
typedef struct
{
cl_uint start_index;
cl_uint end_index;
cl_float start_continuous_index;
cl_float end_continuous_index;
} GPUImageFunction1D;
typedef struct
{
cl_uint2 start_index;
cl_uint2 end_index;
cl_float2 start_continuous_index;
cl_float2 end_continuous_index;
} GPUImageFunction2D;
typedef struct
{
cl_uint3 start_index;
cl_uint3 end_index;
cl_float3 start_continuous_index;
cl_float3 end_continuous_index;
} GPUImageFunction3D;
//------------------------------------------------------------------------------
// IndexType
template <typename ImageType>
void
SetIndex(const typename ImageType::IndexType index, cl_uint & oclindex)
{
oclindex = index[0];
}
template <typename ImageType>
void
SetIndex(const typename ImageType::IndexType index, cl_uint2 & oclindex)
{
unsigned int id = 0;
for (unsigned int i = 0; i < 2; ++i)
{
oclindex.s[id++] = index[i];
}
}
template <typename ImageType>
void
SetIndex(const typename ImageType::IndexType index, cl_uint4 & oclindex)
{
unsigned int id = 0;
for (unsigned int i = 0; i < 3; ++i)
{
oclindex.s[id++] = index[i];
}
oclindex.s[3] = 0;
}
// ContinuousIndexType
template <typename TContinuousIndex>
void
SetContinuousIndex(const TContinuousIndex & cindex, cl_float & oclindex)
{
oclindex = cindex[0];
}
template <typename TContinuousIndex>
void
SetContinuousIndex(const TContinuousIndex & cindex, cl_float2 & oclindex)
{
oclindex.s[0] = cindex[0];
oclindex.s[1] = cindex[1];
}
template <typename TContinuousIndex>
void
SetContinuousIndex(const TContinuousIndex & cindex, cl_float4 & oclindex)
{
unsigned int id = 0;
for (unsigned int i = 0; i < 3; ++i)
{
oclindex.s[id++] = cindex[i];
}
oclindex.s[3] = 0.0;
}
} // end of unnamed namespace
//------------------------------------------------------------------------------
namespace itk
{
template <typename TInputImage, typename TCoordRep, typename TParentInterpolateImageFunction>
GPUInterpolateImageFunction<TInputImage, TCoordRep, TParentInterpolateImageFunction>::GPUInterpolateImageFunction()
{
const unsigned int ImageDim = InputImageType::ImageDimension;
this->m_ParametersDataManager->Initialize();
this->m_ParametersDataManager->SetBufferFlag(CL_MEM_READ_ONLY);
switch (ImageDim)
{
case 1:
this->m_ParametersDataManager->SetBufferSize(sizeof(GPUImageFunction1D));
break;
case 2:
this->m_ParametersDataManager->SetBufferSize(sizeof(GPUImageFunction2D));
break;
case 3:
this->m_ParametersDataManager->SetBufferSize(sizeof(GPUImageFunction3D));
break;
default:
break;
}
this->m_ParametersDataManager->Allocate();
}
//------------------------------------------------------------------------------
template <typename TInputImage, typename TCoordRep, typename TParentInterpolateImageFunction>
GPUDataManager::Pointer
GPUInterpolateImageFunction<TInputImage, TCoordRep, TParentInterpolateImageFunction>::GetParametersDataManager() const
{
const unsigned int ImageDim = InputImageType::ImageDimension;
switch (ImageDim)
{
case 1:
{
GPUImageFunction1D imageFunction;
SetIndex<InputImageType>(this->m_StartIndex, imageFunction.start_index);
SetIndex<InputImageType>(this->m_EndIndex, imageFunction.end_index);
SetContinuousIndex<ContinuousIndexType>(this->m_StartContinuousIndex, imageFunction.start_continuous_index);
SetContinuousIndex<ContinuousIndexType>(this->m_EndContinuousIndex, imageFunction.end_continuous_index);
this->m_ParametersDataManager->SetCPUBufferPointer(&imageFunction);
}
break;
case 2:
{
GPUImageFunction2D imageFunction;
SetIndex<InputImageType>(this->m_StartIndex, imageFunction.start_index);
SetIndex<InputImageType>(this->m_EndIndex, imageFunction.end_index);
SetContinuousIndex<ContinuousIndexType>(this->m_StartContinuousIndex, imageFunction.start_continuous_index);
SetContinuousIndex<ContinuousIndexType>(this->m_EndContinuousIndex, imageFunction.end_continuous_index);
this->m_ParametersDataManager->SetCPUBufferPointer(&imageFunction);
}
break;
case 3:
{
GPUImageFunction3D imageFunction;
SetIndex<InputImageType>(this->m_StartIndex, imageFunction.start_index);
SetIndex<InputImageType>(this->m_EndIndex, imageFunction.end_index);
SetContinuousIndex<ContinuousIndexType>(this->m_StartContinuousIndex, imageFunction.start_continuous_index);
SetContinuousIndex<ContinuousIndexType>(this->m_EndContinuousIndex, imageFunction.end_continuous_index);
this->m_ParametersDataManager->SetCPUBufferPointer(&imageFunction);
}
break;
default:
break;
}
this->m_ParametersDataManager->SetGPUDirtyFlag(true);
this->m_ParametersDataManager->UpdateGPUBuffer();
return this->m_ParametersDataManager;
}
//------------------------------------------------------------------------------
template <typename TInputImage, typename TCoordRep, typename TParentInterpolateImageFunction>
void
GPUInterpolateImageFunction<TInputImage, TCoordRep, TParentInterpolateImageFunction>::PrintSelf(std::ostream & os,
Indent indent) const
{
CPUSuperclass::PrintSelf(os, indent);
}
} // end namespace itk
#endif /* itkGPUInterpolateImageFunction_hxx */
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