CPLErr VRTKernelFilteredSource::SetKernel( int nNewKernelSize,
bool bSeparable,
double *padfNewCoefs )
{
if( nNewKernelSize < 1 || (nNewKernelSize % 2) != 1 )
{
CPLError( CE_Failure, CPLE_AppDefined,
"Illegal filtering kernel size %d, "
"must be odd positive number.",
nNewKernelSize );
return CE_Failure;
}
CPLFree( m_padfKernelCoefs );
m_nKernelSize = nNewKernelSize;
m_bSeparable = bSeparable;
int nKernelBufferSize =
m_nKernelSize * (m_bSeparable ? 1 : m_nKernelSize);
m_padfKernelCoefs = static_cast<double *>(
CPLMalloc(sizeof(double) * nKernelBufferSize ) );
memcpy( m_padfKernelCoefs, padfNewCoefs,
sizeof(double) * nKernelBufferSize );
SetExtraEdgePixels( (nNewKernelSize - 1) / 2 );
return CE_None;
}
CPLErr VRTKernelFilteredSource::SetKernel( int nNewKernelSize,
double *padfNewCoefs )
{
if( nNewKernelSize < 1 || (nNewKernelSize % 2) != 1 )
{
CPLError( CE_Failure, CPLE_AppDefined,
"Illegal filtering kernel size %d, must be odd positive number.",
nNewKernelSize );
return CE_Failure;
}
CPLFree( padfKernelCoefs );
nKernelSize = nNewKernelSize;
padfKernelCoefs = (double *)
CPLMalloc(sizeof(double) * nKernelSize * nKernelSize );
memcpy( padfKernelCoefs, padfNewCoefs,
sizeof(double) * nKernelSize * nKernelSize );
SetExtraEdgePixels( (nNewKernelSize - 1) / 2 );
return CE_None;
}
