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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 "itkOpenCLVectorTest.h"
#include "itkOpenCLVector.h"
#include <algorithm>
//------------------------------------------------------------------------------
template <class type>
bool
std_all_of(const typename 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;
}
//------------------------------------------------------------------------------
template <class type>
bool
std_first_of(const typename std::vector<type> & v, const std::size_t n, const type value)
{
for (std::size_t i = 0; i < n; ++i)
{
if (v[i] != value)
{
return false;
}
}
return true;
}
//------------------------------------------------------------------------------
int
main(int argc, char * argv[])
{
using VectorTypeUChar = unsigned char;
using VectorTypeFloat = float;
using OCLVectorTypeUChar = itk::OpenCLVector<VectorTypeUChar>;
using OCLVectorTypeFloat = itk::OpenCLVector<VectorTypeFloat>;
OCLVectorTypeUChar vectorNull;
if (!vectorNull.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::OpenCLVectorTestKernel::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 = 4096;
const VectorTypeUChar valueUChar = 5;
const VectorTypeFloat valueFloat = 5.1f;
const std::size_t bufferUCharSizeBytes = sizeof(VectorTypeUChar) * bufferSize;
const std::size_t bufferFloatSizeBytes = sizeof(VectorTypeFloat) * bufferSize;
const itk::OpenCLSize workSize(bufferSize);
const itk::OpenCLSize smallSize(8);
// Tests the OpenCLVector
OCLVectorTypeUChar deviceUCharVector =
context->CreateVector<VectorTypeUChar>(itk::OpenCLMemoryObject::WriteOnly, bufferUCharSizeBytes);
ITK_OPENCL_COMPARE(deviceUCharVector.IsNull(), false);
std::cout << deviceUCharVector << std::endl;
OCLVectorTypeFloat deviceFloatVector =
context->CreateVector<VectorTypeFloat>(itk::OpenCLMemoryObject::WriteOnly, bufferFloatSizeBytes);
ITK_OPENCL_COMPARE(deviceFloatVector.IsNull(), false);
std::cout << deviceFloatVector << std::endl;
// Create kernels
itk::OpenCLKernel setUCharKernel = program.CreateKernel("SetUChar");
ITK_OPENCL_COMPARE(setUCharKernel.IsNull(), false);
setUCharKernel.SetGlobalWorkSize(smallSize);
setUCharKernel(deviceUCharVector, valueUChar);
itk::OpenCLKernel setFloatKernel = program.CreateKernel("SetFloat");
ITK_OPENCL_COMPARE(setFloatKernel.IsNull(), false);
setFloatKernel.SetGlobalWorkSize(smallSize);
setFloatKernel(deviceFloatVector, valueFloat);
// Compare results from kernel setUChar
std::vector<VectorTypeUChar> hostBufferUChar(bufferSize);
deviceUCharVector.Read(&hostBufferUChar[0], bufferSize);
const bool resultUChar0 = std_first_of<VectorTypeUChar>(hostBufferUChar, smallSize.GetSizes()[0], valueUChar);
ITK_OPENCL_COMPARE(resultUChar0, true);
// Run again kernel setUChar and compare results
setUCharKernel.SetGlobalWorkSize(workSize);
itk::OpenCLEvent eventUChar = setUCharKernel.LaunchKernel();
ITK_OPENCL_COMPARE(eventUChar.IsNull(), false);
eventUChar.WaitForFinished();
deviceUCharVector.Read(&hostBufferUChar[0], bufferSize);
const bool resultUChar1 = std_all_of<VectorTypeUChar>(hostBufferUChar, valueUChar);
// Only in the latest compilers
// const bool resultUChar = std::all_of( hostBufferUChar.begin(), hostBufferUChar.end(),
// [ valueUChar ]( VectorTypeUChar i ){
// return i == valueUChar;
// } );
ITK_OPENCL_COMPARE(resultUChar1, true);
// Compare results from kernel setFloat
std::vector<VectorTypeFloat> hostBufferFloat(bufferSize);
deviceFloatVector.Read(&hostBufferFloat[0], bufferSize);
const bool resultFloat0 = std_first_of<VectorTypeFloat>(hostBufferFloat, smallSize.GetSizes()[0], valueFloat);
ITK_OPENCL_COMPARE(resultFloat0, true);
// Run again kernel setFloat and compare results
setFloatKernel.SetGlobalWorkSize(workSize);
itk::OpenCLEvent eventFloat = setFloatKernel.LaunchKernel();
ITK_OPENCL_COMPARE(eventFloat.IsNull(), false);
eventFloat.WaitForFinished();
deviceFloatVector.Read(&hostBufferFloat[0], bufferSize);
const bool resultFloat1 = std_all_of<VectorTypeFloat>(hostBufferFloat, valueFloat);
// Only in the latest compilers
// const bool resultFloat = std::all_of( hostBufferFloat.begin(), hostBufferFloat.end(),
// [ valueFloat ]( VectorTypeFloat i ){
// return i == valueFloat;
// } );
ITK_OPENCL_COMPARE(resultFloat1, true);
}
catch (itk::ExceptionObject & e)
{
std::cerr << "Caught ITK exception: " << e << std::endl;
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}
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