Method imageData

src/IECoreImage/ImageDisplayDriver.cpp:101–145

}

void ImageDisplayDriver::imageData( const Box2i &box, const float *data, size_t dataSize )
{
	Box2i tmpBox = box;
	Box2i dataWindow = m_image->getDataWindow();
	tmpBox.extendBy( dataWindow );
	if ( tmpBox != dataWindow )
	{
		throw Exception("The box is outside image data window.");
	}

	int pixelSize = channelNames().size();
	if ( dataSize != (box.max.x - box.min.x + 1) * (box.max.y - box.min.y + 1) * channelNames().size() )
	{
		throw Exception("Invalid dataSize value.");
	}

	int channelId, targetX, targetY, sourceWidth, sourceHeight, targetWidth;
	sourceWidth = box.max.x - box.min.x + 1;
	sourceHeight = box.max.y - box.min.y + 1;
	targetWidth = dataWindow.max.x - dataWindow.min.x + 1;
	channelId = 0;
	targetX = box.min.x - dataWindow.min.x;
	targetY = box.min.y - dataWindow.min.y;

	for( const auto &name : channelNames() )
	{
		vector< float > &target = boost::static_pointer_cast< FloatVectorData >( m_image->channels[name] )->writable();
		vector< float >::iterator targetIt;
		const float *sourceIt = data+channelId;
		targetIt = target.begin()+targetWidth*targetY+targetX;

		for ( int y = 0; y < sourceHeight; y++ )
		{
			for ( int x = 0; x < sourceWidth; x++ )
			{
				*targetIt = *sourceIt;
				sourceIt += pixelSize;
				targetIt++;
			}
			targetIt += targetWidth - sourceWidth;
		}

		++channelId;
	}
}

void ImageDisplayDriver::imageClose()
{