/// <summary>
/// Returns the <see cref="JpegColorConverter"/> corresponding to the given <see cref="JpegColorSpace"/>
/// </summary>
public static JpegColorConverter GetConverter(JpegColorSpace colorSpace)
{
JpegColorConverter converter = Converters.FirstOrDefault(c => c.ColorSpace == colorSpace);
if (converter == null)
{
throw new Exception($"Could not find any converter for JpegColorSpace {colorSpace}!");
}
return(converter);
}
/// <summary>
/// Initializes a new instance of the <see cref="JpegImagePostProcessor"/> class.
/// </summary>
/// <param name="memoryManager">The <see cref="MemoryManager"/> to use for buffer allocations.</param>
/// <param name="rawJpeg">The <see cref="IRawJpegData"/> representing the uncompressed spectral Jpeg data</param>
public JpegImagePostProcessor(MemoryManager memoryManager, IRawJpegData rawJpeg)
{
this.RawJpeg = rawJpeg;
IJpegComponent c0 = rawJpeg.Components.First();
this.NumberOfPostProcessorSteps = c0.SizeInBlocks.Height / BlockRowsPerStep;
this.PostProcessorBufferSize = new Size(c0.SizeInBlocks.Width * 8, PixelRowsPerStep);
this.ComponentProcessors = rawJpeg.Components.Select(c => new JpegComponentPostProcessor(memoryManager, this, c)).ToArray();
this.rgbaBuffer = memoryManager.Allocate <Vector4>(rawJpeg.ImageSizeInPixels.Width);
this.colorConverter = ColorConverters.JpegColorConverter.GetConverter(rawJpeg.ColorSpace);
}
