C++ (Cpp) Box2i::isEmpty Examples

Example #1

File: ImagePlug.cpp Project: sonyomega/gaffer

IECore::ImagePrimitivePtr ImagePlug::image() const
{
	Format format = formatPlug()->getValue();
	Box2i dataWindow = dataWindowPlug()->getValue();
	Box2i newDataWindow( Imath::V2i(0) );
	
	if( dataWindow.isEmpty() )
	{
		dataWindow = Box2i( Imath::V2i(0) );
	}
	else
	{
		newDataWindow = format.yDownToFormatSpace( dataWindow );
	}
	
	ImagePrimitivePtr result = new ImagePrimitive( newDataWindow, format.getDisplayWindow() );

	ConstStringVectorDataPtr channelNamesData = channelNamesPlug()->getValue();
	const vector<string> &channelNames = channelNamesData->readable();
	
	vector<float *> imageChannelData;
	for( vector<string>::const_iterator it = channelNames.begin(), eIt = channelNames.end(); it!=eIt; it++ )
	{
		FloatVectorDataPtr cd = new FloatVectorData;
		vector<float> &c = cd->writable();
		c.resize( result->variableSize( PrimitiveVariable::Vertex ), 0.0f );
		result->variables[*it] = PrimitiveVariable( PrimitiveVariable::Vertex, cd );
		imageChannelData.push_back( &(c[0]) );
	}
	
	parallel_for( blocked_range2d<size_t>( 0, dataWindow.size().x+1, tileSize(), 0, dataWindow.size().y+1, tileSize() ),
		      GafferImage::Detail::CopyTiles( imageChannelData, channelNames, channelDataPlug(), dataWindow, Context::current(), tileSize()) );
	
	return result;
}

Example #2

File: ImagePrimitive.cpp Project: Alwnikrotikz/cortex-vfx

void ImagePrimitive::setDisplayWindow( const Box2i &displayWindow )
{
	if ( displayWindow.isEmpty() )
	{
		throw InvalidArgumentException( "ImagePrimitive: Cannot set displayWindow to the empty window" );
	}

	m_displayWindow = displayWindow;
}

Example #3

File: OSLImage.cpp Project: cnpinto/gaffer

void OSLImage::hashChannelNames( const GafferImage::ImagePlug *output, const Gaffer::Context *context, IECore::MurmurHash &h ) const
{
	ImageProcessor::hashChannelNames( output, context, h );
	inPlug()->channelNamesPlug()->hash( h );

	const Box2i dataWindow = inPlug()->dataWindowPlug()->getValue();
	if( !dataWindow.isEmpty() )
	{
		ContextPtr c = new Context( *context, Context::Borrowed );
		c->set( ImagePlug::tileOriginContextName, ImagePlug::tileOrigin( dataWindow.min ) );
		Context::Scope s( c.get() );
		shadingPlug()->hash( h );
	}
}

Example #4

File: ImagePlug.cpp Project: Eryckz/gaffer

IECore::ImagePrimitivePtr ImagePlug::image() const
{
	Format format = formatPlug()->getValue();
	Box2i dataWindow = dataWindowPlug()->getValue();
	Box2i newDataWindow( Imath::V2i(0) );

	if( dataWindow.isEmpty() )
	{
		dataWindow = Box2i( Imath::V2i(0) );
	}
	else
	{
		newDataWindow = format.yDownToFormatSpace( dataWindow );
	}

	// use the default format if we don't have an explicit one.
	/// \todo: remove this once FormatPlug is handling it for
	/// us during ExecutableNode::execute (see issue #887).
	if( format.getDisplayWindow().isEmpty() )
	{
		format = Context::current()->get<Format>( Format::defaultFormatContextName, Format() );
	}
	
	ImagePrimitivePtr result = new ImagePrimitive( newDataWindow, format.getDisplayWindow() );
	
	ConstCompoundObjectPtr metadata = metadataPlug()->getValue();
	compoundObjectToCompoundData( metadata.get(), result->blindData() );
	
	ConstStringVectorDataPtr channelNamesData = channelNamesPlug()->getValue();
	const vector<string> &channelNames = channelNamesData->readable();

	vector<float *> imageChannelData;
	for( vector<string>::const_iterator it = channelNames.begin(), eIt = channelNames.end(); it!=eIt; it++ )
	{
		FloatVectorDataPtr cd = new FloatVectorData;
		vector<float> &c = cd->writable();
		c.resize( result->variableSize( PrimitiveVariable::Vertex ), 0.0f );
		result->variables[*it] = PrimitiveVariable( PrimitiveVariable::Vertex, cd );
		imageChannelData.push_back( &(c[0]) );
	}

	parallel_for( blocked_range3d<size_t>( 0, imageChannelData.size(), 1, 0, dataWindow.size().x+1, tileSize(), 0, dataWindow.size().y+1, tileSize() ),
		      GafferImage::Detail::CopyTiles( imageChannelData, channelNames, channelDataPlug(), dataWindow, Context::current(), tileSize()) );

	return result;
}

Example #5

File: OSLImage.cpp Project: cnpinto/gaffer

IECore::ConstStringVectorDataPtr OSLImage::computeChannelNames( const Gaffer::Context *context, const GafferImage::ImagePlug *parent ) const
{
	ConstStringVectorDataPtr channelNamesData = inPlug()->channelNamesPlug()->getValue();

	set<string> result( channelNamesData->readable().begin(), channelNamesData->readable().end() );

	const Box2i dataWindow = inPlug()->dataWindowPlug()->getValue();
	if( !dataWindow.isEmpty() )
	{
		ContextPtr c = new Context( *context, Context::Borrowed );
		c->set( ImagePlug::tileOriginContextName, ImagePlug::tileOrigin( dataWindow.min ) );
		Context::Scope s( c.get() );

		ConstCompoundDataPtr shading = runTimeCast<const CompoundData>( shadingPlug()->getValue() );
		for( CompoundDataMap::const_iterator it = shading->readable().begin(), eIt = shading->readable().end(); it != eIt; ++it )
		{
			result.insert( it->first );
		}
	}

	return new StringVectorData( vector<string>( result.begin(), result.end() ) );
}