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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 "itkOpenCLBufferTest.h"
#include "itkOpenCLBuffer.h"
#include <algorithm>
//------------------------------------------------------------------------------
template <class type>
bool
std_all_of(const std::vector<type> & v, const type value)
{
for (typename std::vector<type>::const_iterator it = v.begin(); it != v.end(); ++it)
{
if (*it != value)
{
return false;
}
}
return true;
}
//------------------------------------------------------------------------------
int
main()
{
itk::OpenCLBuffer bufferNull;
if (!bufferNull.IsNull())
{
return EXIT_FAILURE;
}
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::OpenCLBufferTestKernel::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");
}
}
// Local variables
const std::size_t bufferSize = 16;
const std::size_t bufferSizeBytes = sizeof(float) * bufferSize;
const float value = 5.1f;
const itk::OpenCLSize workSize(bufferSize);
// Tests the OpenCLBuffer
itk::OpenCLBuffer deviceBuffer = context->CreateBufferDevice(itk::OpenCLMemoryObject::WriteOnly, bufferSizeBytes);
ITK_OPENCL_COMPARE(deviceBuffer.IsNull(), false);
std::cout << deviceBuffer << std::endl;
itk::OpenCLKernel setFloatKernel = program.CreateKernel("SetFloat");
ITK_OPENCL_COMPARE(setFloatKernel.IsNull(), false);
setFloatKernel(deviceBuffer, value);
// Compare results test1
std::vector<float> hostBuffer(bufferSize);
deviceBuffer.Read(&hostBuffer[0], sizeof(float));
ITK_OPENCL_COMPARE(hostBuffer[0], value);
ITK_OPENCL_COMPARE(hostBuffer[1], 0.0f);
// Compare results test2
setFloatKernel.SetGlobalWorkSize(workSize);
itk::OpenCLEvent event = setFloatKernel.LaunchKernel();
ITK_OPENCL_COMPARE(event.IsNull(), false);
event.WaitForFinished();
deviceBuffer.Read(&hostBuffer[0], bufferSizeBytes);
const bool result = std_all_of<float>(hostBuffer, value);
// Only in the latest compilers
// const bool result = std::all_of( hostBuffer.begin(), hostBuffer.end(),
// [ value ]( float i ){
// return i == value;
// } );
ITK_OPENCL_COMPARE(result, true);
}
catch (itk::ExceptionObject & e)
{
std::cerr << "Caught ITK exception: " << e << std::endl;
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}
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