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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( int argc, char * argv[] )
{
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;
itk::ReleaseContext();
return EXIT_FAILURE;
}
itk::ReleaseContext();
return EXIT_SUCCESS;
}
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