Method ImageTargetFileStbImage

src/cinder/ImageTargetFileStbImage.cpp:54–94

}

ImageTargetFileStbImage::ImageTargetFileStbImage( DataTargetRef dataTarget, ImageSourceRef imageSource, ImageTarget::Options options, const std::string &extensionData )
	: mDataTarget( dataTarget )
{
	if( ! ( mDataTarget->providesFilePath() || mDataTarget->getStream() ) ) {
		throw ImageIoExceptionFailedWrite( "No file path or stream provided" );
	}

	setSize( imageSource->getWidth(), imageSource->getHeight() );
	ImageIo::ColorModel cm = options.isColorModelDefault() ? imageSource->getColorModel() : options.getColorModel();
	
	switch( cm ) {
		case ImageIo::ColorModel::CM_RGB:
			mNumComponents = ( imageSource->hasAlpha() ) ? 4 : 3;
			setColorModel( ImageIo::ColorModel::CM_RGB );
			setChannelOrder( ( mNumComponents == 4 ) ? ImageIo::ChannelOrder::RGBA : ImageIo::ChannelOrder::RGB );
		break;
		case ImageIo::ColorModel::CM_GRAY:
			mNumComponents = ( imageSource->hasAlpha() ) ? 2 : 1;
			setColorModel( ImageIo::ColorModel::CM_GRAY );
			setChannelOrder( ( mNumComponents == 2 ) ? ImageIo::ChannelOrder::YA : ImageIo::ChannelOrder::Y );
		break;
		default:
			throw ImageIoExceptionIllegalColorModel();
	}

	mExtension = extensionData;
	if( mExtension == "hdr" ) { // Radiance files are always float*
		setDataType( ImageIo::DataType::FLOAT32 );
		mRowBytes = mNumComponents * imageSource->getWidth() * sizeof(float);
	}
	else {
		setDataType( ImageIo::DataType::UINT8 );
		mRowBytes = mNumComponents * imageSource->getWidth() * sizeof(uint8_t);
	}

	if( mDataTarget->providesFilePath() ) {
		mFilePath = dataTarget->getFilePath();
	}
	
	mData = std::unique_ptr<uint8_t[]>( new uint8_t[mHeight * mRowBytes] );
}

void* ImageTargetFileStbImage::getRowPointer( int32_t row )
{