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Fix raster calc OpenCL < operator
Fixes #32477 also: - catch build exceptions - remove parenthesis after casting numbers - add cast to raster ref (for fabs overload) with tests
This commit is contained in:
Alessandro Pasotti
Nyall Dawson
parent
e2246443b7
commit
4263637ba6
@ -265,7 +265,7 @@ QString QgsRasterCalcNode::toString( bool cStyle ) const
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break;
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case opLT:
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if ( cStyle )
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result = QStringLiteral( "( float ) ( %1 < %2" ).arg( left ).arg( right );
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result = QStringLiteral( "( float ) ( %1 < %2 )" ).arg( left ).arg( right );
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else
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result = QStringLiteral( "%1 < %2" ).arg( left ).arg( right );
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break;
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@ -344,13 +344,16 @@ QString QgsRasterCalcNode::toString( bool cStyle ) const
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}
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break;
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case tRasterRef:
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result = QStringLiteral( "\"%1\"" ).arg( mRasterName );
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if ( cStyle )
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result = QStringLiteral( "( float ) \"%1\"" ).arg( mRasterName );
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else
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result = QStringLiteral( "\"%1\"" ).arg( mRasterName );
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break;
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case tNumber:
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result = QString::number( mNumber );
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if ( cStyle )
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{
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result = QStringLiteral( "( float ) ( %1 )" ).arg( result );
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result = QStringLiteral( "( float ) %1" ).arg( result );
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}
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break;
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case tMatrix:
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@ -427,172 +427,182 @@ QgsRasterCalculator::Result QgsRasterCalculator::processCalculationGPU( std::uni
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inputRefs.push_back( entry );
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}
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// Prepare context and queue
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cl::Context ctx( QgsOpenClUtils::context() );
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cl::CommandQueue queue( QgsOpenClUtils::commandQueue() );
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// Create the C expression
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std::vector<cl::Buffer> inputBuffers;
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inputBuffers.reserve( inputRefs.size() );
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QStringList inputArgs;
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for ( const auto &ref : inputRefs )
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// May throw an openCL exception
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try
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{
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cExpression.replace( QStringLiteral( "\"%1\"" ).arg( ref.name ), QStringLiteral( "%1[i]" ).arg( ref.varName ) );
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inputArgs.append( QStringLiteral( "__global %1 *%2" )
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.arg( ref.typeName )
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.arg( ref.varName ) );
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inputBuffers.push_back( cl::Buffer( ctx, CL_MEM_READ_ONLY, ref.bufferSize, nullptr, nullptr ) );
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}
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// Prepare context and queue
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cl::Context ctx( QgsOpenClUtils::context() );
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cl::CommandQueue queue( QgsOpenClUtils::commandQueue() );
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//qDebug() << cExpression;
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// Create the program
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QString programTemplate( R"CL(
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// Inputs:
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##INPUT_DESC##
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// Expression: ##EXPRESSION_ORIGINAL##
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__kernel void rasterCalculator( ##INPUT##
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__global float *resultLine
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)
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{
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// Get the index of the current element
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const int i = get_global_id(0);
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// Expression
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resultLine[i] = ##EXPRESSION##;
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}
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)CL" );
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QStringList inputDesc;
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for ( const auto &ref : inputRefs )
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{
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inputDesc.append( QStringLiteral( " // %1 = %2" ).arg( ref.varName ).arg( ref.name ) );
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}
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programTemplate = programTemplate.replace( QStringLiteral( "##INPUT_DESC##" ), inputDesc.join( '\n' ) );
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programTemplate = programTemplate.replace( QStringLiteral( "##INPUT##" ), !inputArgs.isEmpty() ? ( inputArgs.join( ',' ).append( ',' ) ) : QChar( ' ' ) );
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programTemplate = programTemplate.replace( QStringLiteral( "##EXPRESSION##" ), cExpression );
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programTemplate = programTemplate.replace( QStringLiteral( "##EXPRESSION_ORIGINAL##" ), calcNode->toString( ) );
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// qDebug() << programTemplate;
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// Create a program from the kernel source
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cl::Program program( QgsOpenClUtils::buildProgram( programTemplate, QgsOpenClUtils::ExceptionBehavior::Throw ) );
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// Create the buffers, output is float32 (4 bytes)
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// We assume size of float = 4 because that's the size used by OpenCL and IEEE 754
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Q_ASSERT( sizeof( float ) == 4 );
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std::size_t resultBufferSize( 4 * static_cast<size_t>( mNumOutputColumns ) );
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cl::Buffer resultLineBuffer( ctx, CL_MEM_WRITE_ONLY,
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resultBufferSize, nullptr, nullptr );
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auto kernel = cl::Kernel( program, "rasterCalculator" );
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for ( unsigned int i = 0; i < inputBuffers.size() ; i++ )
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{
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kernel.setArg( i, inputBuffers.at( i ) );
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}
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kernel.setArg( static_cast<unsigned int>( inputBuffers.size() ), resultLineBuffer );
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QgsOpenClUtils::CPLAllocator<float> resultLine( static_cast<size_t>( mNumOutputColumns ) );
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//open output dataset for writing
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GDALDriverH outputDriver = openOutputDriver();
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if ( !outputDriver )
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{
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mLastError = QObject::tr( "Could not obtain driver for %1" ).arg( mOutputFormat );
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return CreateOutputError;
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}
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gdal::dataset_unique_ptr outputDataset( openOutputFile( outputDriver ) );
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if ( !outputDataset )
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{
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mLastError = QObject::tr( "Could not create output %1" ).arg( mOutputFile );
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return CreateOutputError;
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}
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GDALSetProjection( outputDataset.get(), mOutputCrs.toWkt().toLocal8Bit().data() );
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GDALRasterBandH outputRasterBand = GDALGetRasterBand( outputDataset.get(), 1 );
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if ( !outputRasterBand )
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return BandError;
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// Input block (buffer)
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std::unique_ptr<QgsRasterBlock> block;
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// Run kernel on all scanlines
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auto rowHeight = mOutputRectangle.height() / mNumOutputRows;
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for ( int line = 0; line < mNumOutputRows; line++ )
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{
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if ( feedback && feedback->isCanceled() )
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{
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break;
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}
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if ( feedback )
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{
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feedback->setProgress( 100.0 * static_cast< double >( line ) / mNumOutputRows );
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}
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// Read lines from rasters into the buffers
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// Create the C expression
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std::vector<cl::Buffer> inputBuffers;
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inputBuffers.reserve( inputRefs.size() );
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QStringList inputArgs;
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for ( const auto &ref : inputRefs )
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{
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// Read one row
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QgsRectangle rect( mOutputRectangle );
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rect.setYMaximum( rect.yMaximum() - rowHeight * line );
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rect.setYMinimum( rect.yMaximum() - rowHeight );
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// TODO: check if this is too slow
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// if crs transform needed
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if ( ref.layer->crs() != mOutputCrs )
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{
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QgsRasterProjector proj;
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proj.setCrs( ref.layer->crs(), mOutputCrs, ref.layer->transformContext() );
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proj.setInput( ref.layer->dataProvider() );
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proj.setPrecision( QgsRasterProjector::Exact );
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block.reset( proj.block( ref.band, rect, mNumOutputColumns, 1 ) );
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}
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else
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{
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block.reset( ref.layer->dataProvider()->block( ref.band, rect, mNumOutputColumns, 1 ) );
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}
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//for ( int i = 0; i < mNumOutputColumns; i++ )
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// qDebug() << "Input: " << line << i << ref.varName << " = " << block->value( 0, i );
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//qDebug() << "Writing buffer " << ref.index;
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Q_ASSERT( ref.bufferSize == static_cast<size_t>( block->data().size( ) ) );
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queue.enqueueWriteBuffer( inputBuffers[ref.index], CL_TRUE, 0,
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ref.bufferSize, block->bits() );
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cExpression.replace( QStringLiteral( "\"%1\"" ).arg( ref.name ), QStringLiteral( "%1[i]" ).arg( ref.varName ) );
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inputArgs.append( QStringLiteral( "__global %1 *%2" )
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.arg( ref.typeName )
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.arg( ref.varName ) );
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inputBuffers.push_back( cl::Buffer( ctx, CL_MEM_READ_ONLY, ref.bufferSize, nullptr, nullptr ) );
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}
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// Run the kernel
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queue.enqueueNDRangeKernel(
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kernel,
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0,
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cl::NDRange( mNumOutputColumns )
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);
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// Write the result
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queue.enqueueReadBuffer( resultLineBuffer, CL_TRUE, 0,
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resultBufferSize, resultLine.get() );
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//qDebug() << cExpression;
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//for ( int i = 0; i < mNumOutputColumns; i++ )
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// qDebug() << "Output: " << line << i << " = " << resultLine[i];
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if ( GDALRasterIO( outputRasterBand, GF_Write, 0, line, mNumOutputColumns, 1, resultLine.get(), mNumOutputColumns, 1, GDT_Float32, 0, 0 ) != CE_None )
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// Create the program
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QString programTemplate( R"CL(
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// Inputs:
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##INPUT_DESC##
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// Expression: ##EXPRESSION_ORIGINAL##
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__kernel void rasterCalculator( ##INPUT##
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__global float *resultLine
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)
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{
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// Get the index of the current element
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const int i = get_global_id(0);
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// Expression
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resultLine[i] = ##EXPRESSION##;
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}
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)CL" );
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QStringList inputDesc;
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for ( const auto &ref : inputRefs )
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{
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inputDesc.append( QStringLiteral( " // %1 = %2" ).arg( ref.varName ).arg( ref.name ) );
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}
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programTemplate = programTemplate.replace( QStringLiteral( "##INPUT_DESC##" ), inputDesc.join( '\n' ) );
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programTemplate = programTemplate.replace( QStringLiteral( "##INPUT##" ), !inputArgs.isEmpty() ? ( inputArgs.join( ',' ).append( ',' ) ) : QChar( ' ' ) );
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programTemplate = programTemplate.replace( QStringLiteral( "##EXPRESSION##" ), cExpression );
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programTemplate = programTemplate.replace( QStringLiteral( "##EXPRESSION_ORIGINAL##" ), calcNode->toString( ) );
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// qDebug() << programTemplate;
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// Create a program from the kernel source
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cl::Program program( QgsOpenClUtils::buildProgram( programTemplate, QgsOpenClUtils::ExceptionBehavior::Throw ) );
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// Create the buffers, output is float32 (4 bytes)
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// We assume size of float = 4 because that's the size used by OpenCL and IEEE 754
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Q_ASSERT( sizeof( float ) == 4 );
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std::size_t resultBufferSize( 4 * static_cast<size_t>( mNumOutputColumns ) );
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cl::Buffer resultLineBuffer( ctx, CL_MEM_WRITE_ONLY,
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resultBufferSize, nullptr, nullptr );
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auto kernel = cl::Kernel( program, "rasterCalculator" );
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for ( unsigned int i = 0; i < inputBuffers.size() ; i++ )
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{
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kernel.setArg( i, inputBuffers.at( i ) );
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}
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kernel.setArg( static_cast<unsigned int>( inputBuffers.size() ), resultLineBuffer );
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QgsOpenClUtils::CPLAllocator<float> resultLine( static_cast<size_t>( mNumOutputColumns ) );
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//open output dataset for writing
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GDALDriverH outputDriver = openOutputDriver();
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if ( !outputDriver )
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{
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mLastError = QObject::tr( "Could not obtain driver for %1" ).arg( mOutputFormat );
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return CreateOutputError;
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}
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}
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if ( feedback && feedback->isCanceled() )
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gdal::dataset_unique_ptr outputDataset( openOutputFile( outputDriver ) );
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if ( !outputDataset )
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{
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mLastError = QObject::tr( "Could not create output %1" ).arg( mOutputFile );
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return CreateOutputError;
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}
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GDALSetProjection( outputDataset.get(), mOutputCrs.toWkt().toLocal8Bit().data() );
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GDALRasterBandH outputRasterBand = GDALGetRasterBand( outputDataset.get(), 1 );
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if ( !outputRasterBand )
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return BandError;
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// Input block (buffer)
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std::unique_ptr<QgsRasterBlock> block;
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// Run kernel on all scanlines
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auto rowHeight = mOutputRectangle.height() / mNumOutputRows;
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for ( int line = 0; line < mNumOutputRows; line++ )
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{
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if ( feedback && feedback->isCanceled() )
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{
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break;
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}
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if ( feedback )
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{
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feedback->setProgress( 100.0 * static_cast< double >( line ) / mNumOutputRows );
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}
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// Read lines from rasters into the buffers
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for ( const auto &ref : inputRefs )
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{
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// Read one row
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QgsRectangle rect( mOutputRectangle );
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rect.setYMaximum( rect.yMaximum() - rowHeight * line );
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rect.setYMinimum( rect.yMaximum() - rowHeight );
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// TODO: check if this is too slow
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// if crs transform needed
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if ( ref.layer->crs() != mOutputCrs )
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{
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QgsRasterProjector proj;
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proj.setCrs( ref.layer->crs(), mOutputCrs, ref.layer->transformContext() );
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proj.setInput( ref.layer->dataProvider() );
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proj.setPrecision( QgsRasterProjector::Exact );
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block.reset( proj.block( ref.band, rect, mNumOutputColumns, 1 ) );
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}
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else
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{
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block.reset( ref.layer->dataProvider()->block( ref.band, rect, mNumOutputColumns, 1 ) );
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}
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//for ( int i = 0; i < mNumOutputColumns; i++ )
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// qDebug() << "Input: " << line << i << ref.varName << " = " << block->value( 0, i );
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//qDebug() << "Writing buffer " << ref.index;
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Q_ASSERT( ref.bufferSize == static_cast<size_t>( block->data().size( ) ) );
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queue.enqueueWriteBuffer( inputBuffers[ref.index], CL_TRUE, 0,
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ref.bufferSize, block->bits() );
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}
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// Run the kernel
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queue.enqueueNDRangeKernel(
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kernel,
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0,
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cl::NDRange( mNumOutputColumns )
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);
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// Write the result
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queue.enqueueReadBuffer( resultLineBuffer, CL_TRUE, 0,
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resultBufferSize, resultLine.get() );
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//for ( int i = 0; i < mNumOutputColumns; i++ )
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// qDebug() << "Output: " << line << i << " = " << resultLine[i];
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if ( GDALRasterIO( outputRasterBand, GF_Write, 0, line, mNumOutputColumns, 1, resultLine.get(), mNumOutputColumns, 1, GDT_Float32, 0, 0 ) != CE_None )
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{
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return CreateOutputError;
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}
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}
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if ( feedback && feedback->isCanceled() )
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{
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//delete the dataset without closing (because it is faster)
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gdal::fast_delete_and_close( outputDataset, outputDriver, mOutputFile );
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return Canceled;
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}
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inputBuffers.clear();
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}
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catch ( cl::Error &e )
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{
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//delete the dataset without closing (because it is faster)
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gdal::fast_delete_and_close( outputDataset, outputDriver, mOutputFile );
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return Canceled;
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mLastError = e.what();
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return CreateOutputError;
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}
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inputBuffers.clear();
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return Success;
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}
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#endif
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@ -724,25 +724,28 @@ void TestQgsRasterCalculator::toString()
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return calcNode->toString( cStyle );
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};
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QCOMPARE( _test( QStringLiteral( "\"raster@1\" + 2" ), false ), QString( "( \"raster@1\" + 2 )" ) );
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QCOMPARE( _test( QStringLiteral( "\"raster@1\" + 2" ), true ), QString( "( \"raster@1\" + ( float ) ( 2 ) )" ) );
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QCOMPARE( _test( QStringLiteral( "\"raster@1\" + 2" ), true ), QString( "( ( float ) \"raster@1\" + ( float ) 2 )" ) );
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QCOMPARE( _test( QStringLiteral( "\"raster@1\" ^ 3 + 2" ), false ), QString( "( \"raster@1\"^3 + 2 )" ) );
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QCOMPARE( _test( QStringLiteral( "\"raster@1\" ^ 3 + 2" ), true ), QString( "( pow( \"raster@1\", ( float ) ( 3 ) ) + ( float ) ( 2 ) )" ) );
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QCOMPARE( _test( QStringLiteral( "\"raster@1\" ^ 3 + 2" ), true ), QString( "( pow( ( float ) \"raster@1\", ( float ) 3 ) + ( float ) 2 )" ) );
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QCOMPARE( _test( QStringLiteral( "atan(\"raster@1\") * cos( 3 + 2 )" ), false ), QString( "atan( \"raster@1\" ) * cos( ( 3 + 2 ) )" ) );
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QCOMPARE( _test( QStringLiteral( "atan(\"raster@1\") * cos( 3 + 2 )" ), true ), QString( "atan( \"raster@1\" ) * cos( ( ( float ) ( 3 ) + ( float ) ( 2 ) ) )" ) );
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QCOMPARE( _test( QStringLiteral( "atan(\"raster@1\") * cos( 3 + 2 )" ), true ), QString( "atan( ( float ) \"raster@1\" ) * cos( ( ( float ) 3 + ( float ) 2 ) )" ) );
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QCOMPARE( _test( QStringLiteral( "0.5 * ( 1.4 * (\"raster@1\" + 2) )" ), false ), QString( "0.5 * 1.4 * ( \"raster@1\" + 2 )" ) );
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QCOMPARE( _test( QStringLiteral( "0.5 * ( 1.4 * (\"raster@1\" + 2) )" ), true ), QString( "( float ) ( 0.5 ) * ( float ) ( 1.4 ) * ( \"raster@1\" + ( float ) ( 2 ) )" ) );
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QCOMPARE( _test( QStringLiteral( "0.5 * ( 1.4 * (\"raster@1\" + 2) )" ), true ), QString( "( float ) 0.5 * ( float ) 1.4 * ( ( float ) \"raster@1\" + ( float ) 2 )" ) );
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QCOMPARE( _test( QStringLiteral( "0.5 * ( 1 > 0 )" ), false ), QString( "0.5 * 1 > 0" ) );
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QCOMPARE( _test( QStringLiteral( "0.5 * ( 1 > 0 )" ), true ), QString( "( float ) ( 0.5 ) * ( float ) ( ( float ) ( 1 ) > ( float ) ( 0 ) )" ) );
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QCOMPARE( _test( QStringLiteral( "0.5 * ( 1 > 0 )" ), true ), QString( "( float ) 0.5 * ( float ) ( ( float ) 1 > ( float ) 0 )" ) );
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// Test negative numbers
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QCOMPARE( _test( QStringLiteral( "0.5 * ( -1 > 0 )" ), false ), QString( "0.5 * -1 > 0" ) );
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QCOMPARE( _test( QStringLiteral( "0.5 * ( -1 > 0 )" ), true ), QString( "( float ) ( 0.5 ) * ( float ) ( -( float ) ( 1 ) > ( float ) ( 0 ) )" ) );
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QCOMPARE( _test( QStringLiteral( "0.5 * ( -1 > 0 )" ), true ), QString( "( float ) 0.5 * ( float ) ( -( float ) 1 > ( float ) 0 )" ) );
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// Test new functions
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QCOMPARE( _test( QStringLiteral( "0.5 * abs( -1 )" ), false ), QString( "0.5 * abs( -1 )" ) );
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QCOMPARE( _test( QStringLiteral( "0.5 * abs( -1 )" ), true ), QString( "( float ) ( 0.5 ) * fabs( -( float ) ( 1 ) )" ) );
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QCOMPARE( _test( QStringLiteral( "0.5 * abs( -1 )" ), true ), QString( "( float ) 0.5 * fabs( -( float ) 1 )" ) );
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QCOMPARE( _test( QStringLiteral( "0.5 * min( -1, 1 )" ), false ), QString( "0.5 * min( -1, 1 )" ) );
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QCOMPARE( _test( QStringLiteral( "0.5 * min( -1, 1 )" ), true ), QString( "( float ) ( 0.5 ) * min( ( float ) ( -( float ) ( 1 ) ), ( float ) ( ( float ) ( 1 ) ) )" ) );
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QCOMPARE( _test( QStringLiteral( "0.5 * min( -1, 1 )" ), true ), QString( "( float ) 0.5 * min( ( float ) ( -( float ) 1 ), ( float ) ( ( float ) 1 ) )" ) );
|
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QCOMPARE( _test( QStringLiteral( "0.5 * max( -1, 1 )" ), false ), QString( "0.5 * max( -1, 1 )" ) );
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||||
QCOMPARE( _test( QStringLiteral( "0.5 * max( -1, 1 )" ), true ), QString( "( float ) ( 0.5 ) * max( ( float ) ( -( float ) ( 1 ) ), ( float ) ( ( float ) ( 1 ) ) )" ) );
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||||
QCOMPARE( _test( QStringLiteral( "0.5 * max( -1, 1 )" ), true ), QString( "( float ) 0.5 * max( ( float ) ( -( float ) 1 ), ( float ) ( ( float ) 1 ) )" ) );
|
||||
// Test regression #32477
|
||||
QCOMPARE( _test( QStringLiteral( R"raw(("r@1"<100.09)*0.1)raw" ), true ),
|
||||
QString( R"raw(( float ) ( ( float ) "r@1" < ( float ) 100.09 ) * ( float ) 0.1)raw" ) );
|
||||
}
|
||||
|
||||
void TestQgsRasterCalculator::calcFormulasWithReprojectedLayers()
|
||||
|
||||
Loading…
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Reference in New Issue
Block a user