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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.
*
*=========================================================================*/
/*=========================================================================
*
* 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 itkGPUImageDataManager_hxx
#define itkGPUImageDataManager_hxx
#include "itkGPUImageDataManager.h"
//#define VERBOSE
namespace itk
{
template <typename ImageType>
void
GPUImageDataManager<ImageType>::SetImagePointer(typename ImageType::Pointer img)
{
m_Image = img;
}
//------------------------------------------------------------------------------
template <typename ImageType>
void
GPUImageDataManager<ImageType>::UpdateCPUBuffer()
{
if (this->m_CPUBufferLock)
{
return;
}
if (m_Image.IsNotNull())
{
m_Mutex.lock();
unsigned long gpu_time = this->GetMTime();
TimeStamp cpu_time_stamp = m_Image->GetTimeStamp();
unsigned long cpu_time = cpu_time_stamp.GetMTime();
/* Why we check dirty flag and time stamp together?
* Because existing CPU image filters do not use pixel/buffer
* access function in GPUImage and therefore dirty flag is not
* correctly managed. Therefore, we check the time stamp of
* CPU and GPU data as well
*/
if ((m_IsCPUBufferDirty || (gpu_time > cpu_time)) && m_GPUBuffer != nullptr && m_CPUBuffer != nullptr)
{
cl_int errid;
#if (defined(_WIN32) && defined(_DEBUG)) || !defined(NDEBUG)
std::cout << "clEnqueueReadBuffer GPU->CPU..." << std::endl;
#endif
#ifdef OPENCL_PROFILING
cl_event clEvent = NULL;
errid = clEnqueueReadBuffer(m_Context->GetCommandQueue().GetQueueId(),
m_GPUBuffer,
CL_TRUE,
0,
m_BufferSize,
m_CPUBuffer,
0,
nullptr,
&clEvent);
#else
errid = clEnqueueReadBuffer(
m_Context->GetCommandQueue().GetQueueId(), m_GPUBuffer, CL_TRUE, 0, m_BufferSize, m_CPUBuffer, 0, 0, 0);
#endif
m_Context->ReportError(errid, __FILE__, __LINE__, ITK_LOCATION);
// m_ContextManager->OpenCLProfile(clEvent, "clEnqueueReadBuffer GPU->CPU");
m_Image->Modified();
this->SetTimeStamp(m_Image->GetTimeStamp());
m_IsCPUBufferDirty = false;
m_IsGPUBufferDirty = false;
}
m_Mutex.unlock();
}
}
//------------------------------------------------------------------------------
template <typename ImageType>
void
GPUImageDataManager<ImageType>::UpdateGPUBuffer()
{
if (this->m_GPUBufferLock)
{
return;
}
if (m_Image.IsNotNull())
{
m_Mutex.lock();
unsigned long gpu_time = this->GetMTime();
TimeStamp cpu_time_stamp = m_Image->GetTimeStamp();
unsigned long cpu_time = m_Image->GetMTime();
/* Why we check dirty flag and time stamp together?
* Because existing CPU image filters do not use pixel/buffer
* access function in GPUImage and therefore dirty flag is not
* correctly managed. Therefore, we check the time stamp of
* CPU and GPU data as well
*/
if ((m_IsGPUBufferDirty || (gpu_time < cpu_time)) && m_CPUBuffer != nullptr && m_GPUBuffer != nullptr)
{
cl_int errid;
#if (defined(_WIN32) && defined(_DEBUG)) || !defined(NDEBUG)
std::cout << "clEnqueueWriteBuffer CPU->GPU..." << std::endl;
#endif
#ifdef OPENCL_PROFILING
cl_event clEvent = NULL;
errid = clEnqueueWriteBuffer(m_Context->GetCommandQueue().GetQueueId(),
m_GPUBuffer,
CL_TRUE,
0,
m_BufferSize,
m_CPUBuffer,
0,
nullptr,
&clEvent);
#else
errid = clEnqueueWriteBuffer(m_Context->GetCommandQueue().GetQueueId(),
m_GPUBuffer,
CL_TRUE,
0,
m_BufferSize,
m_CPUBuffer,
0,
nullptr,
nullptr);
#endif
m_Context->ReportError(errid, __FILE__, __LINE__, ITK_LOCATION);
// m_ContextManager->OpenCLProfile(clEvent, "clEnqueueWriteBuffer CPU->GPU");
this->SetTimeStamp(cpu_time_stamp);
m_IsCPUBufferDirty = false;
m_IsGPUBufferDirty = false;
}
m_Mutex.unlock();
}
}
//------------------------------------------------------------------------------
template <typename ImageType>
void
GPUImageDataManager<ImageType>::Graft(const GPUImageDataManager * data)
{
// std::cout << "GPU timestamp : " << this->GetMTime() << ", CPU timestamp : "
// << m_Image->GetMTime() << std::endl;
Superclass::Graft(data);
// std::cout << "GPU timestamp : " << this->GetMTime() << ", CPU timestamp : "
// << m_Image->GetMTime() << std::endl;
}
} // namespace itk
#endif
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