TODO

• Support for conversions between formats that have higher dimensionality than RGBA. (arbitrary meaningless components)
• Support for datatypes that are not a multiple of 8bit.
• dithering
• dynamic data attached to format, or internal handling of icc through a registered set of profiles
• Stocastic runtime profiling with running average of the peformance for conversions, to avoid problems incurred if other cpu intense is happening when babl tests a conversions.