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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.
*
*=========================================================================*/
#include "itkTestHelper.h"
#include "itkOpenCLKernelToImageBridgeTest.h"
#include "itkOpenCLKernelToImageBridge.h"
int
main()
{
try
{
itk::OpenCLContext::Pointer context = itk::OpenCLContext::GetInstance();
context->Create(itk::OpenCLContext::DevelopmentSingleMaximumFlopsDevice);
const std::list<itk::OpenCLDevice> devices = context->GetDevices();
itk::OpenCLProgram program =
context->BuildProgramFromSourceCode(devices, itk::OpenCLKernelToImageBridgeTestKernel::GetOpenCLSource());
if (program.IsNull())
{
if (context->GetDefaultDevice().HasCompiler())
{
itkGenericExceptionMacro("Could not compile the OpenCL test program");
}
else
{
itkGenericExceptionMacro("OpenCL implementation does not have a compiler");
}
}
// Create ITK Image
using ImageType = itk::Image<float, 2>;
auto image = ImageType::New();
ImageType::SizeType size;
size[0] = 64;
size[1] = 64;
auto spacing = itk::MakeFilled<ImageType::SpacingType>(1.1);
auto origin = itk::MakeFilled<ImageType::PointType>(3.2);
ImageType::DirectionType direction;
direction[0][0] = .5;
direction[0][1] = .7;
direction[1][0] = .7;
direction[1][1] = .5;
image->SetSpacing(spacing);
image->SetOrigin(origin);
image->SetDirection(direction);
image->SetRegions(size);
image->Allocate();
image->FillBuffer(11);
image->Print(std::cout);
// Check the setting image information
const std::size_t bufferSize = 4;
const std::size_t bufferSizeBytes = sizeof(float) * bufferSize;
itk::OpenCLBuffer directionBuffer =
context->CreateBufferDevice(itk::OpenCLMemoryObject::WriteOnly, bufferSizeBytes);
ITK_OPENCL_COMPARE(directionBuffer.IsNull(), false);
itk::OpenCLKernel directionKernel = program.CreateKernel("SetDirection");
ITK_OPENCL_COMPARE(directionKernel.IsNull(), false);
directionKernel(image->GetDirection(), directionBuffer);
// Check setting the direction
std::vector<float> hostDirectionBuffer(bufferSize);
directionBuffer.Read(&hostDirectionBuffer[0], bufferSizeBytes);
ITK_OPENCL_COMPARE(hostDirectionBuffer[0], 0.5f);
ITK_OPENCL_COMPARE(hostDirectionBuffer[1], 0.7f);
ITK_OPENCL_COMPARE(hostDirectionBuffer[2], 0.7f);
ITK_OPENCL_COMPARE(hostDirectionBuffer[3], 0.5f);
}
catch (itk::ExceptionObject & e)
{
std::cerr << "Caught ITK exception: " << e << std::endl;
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}
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