internal static string AsExtension(this ZZMapsImageFormat format) => format switch
{
private IPropagatorBlock <RenderedSceneTile <TPixel>, EncodedSceneTile> CreateImageEncoding <TPixel>(ZZMapsImageFormat format, ExecutionDataflowBlockOptions dataflowOptions, ProgressStep?progressStep)
where TPixel : unmanaged, IPixel <TPixel>
{
IImageEncoder encoder = format switch
{
ZZMapsImageFormat.Png => new PngEncoder()
{
CompressionLevel = (PngCompressionLevel)Math.Clamp(options.PNGCompression,
(int)PngCompressionLevel.BestSpeed, (int)PngCompressionLevel.BestCompression)
},
ZZMapsImageFormat.Jpeg => new JpegEncoder()
{
Quality = Math.Clamp(options.JPEGQuality, 0, 100)
},
_ => throw new NotSupportedException($"Unsupported image format {format}")
};
return(new TransformBlock <RenderedSceneTile <TPixel>, EncodedSceneTile>(renderedTile =>
{
var stream = new MemoryStream();
encoder.Encode(renderedTile.Image, stream);
stream.Position = 0;
progressStep?.Increment();
return new EncodedSceneTile(renderedTile.SceneName, renderedTile.Layer, renderedTile.TileID, stream);
}, dataflowOptions));
}