Color Scheme Processor not allowing hues above 255

[Stevan Flores]

I was working on a skin with Schemes and I noticed weird things happening as I tried to adjust the colors using the HSVTweak filter. After hours of investigating weird, inconsistent values turning up, I think I've figured it out.

Hue values range from 0-359, starting with pure red (hue value 0) and cycling through the ROYGBIV spectrum before returning to red (360). Saturation and Value values range from 0-255, with 0 representing no saturation and completely dark (black), and 255 representing full saturation and brightest possible output. It appears that the image processor in Mixxx 1.9.0 clips color values at 255. This is appropriate for Saturation and Value, but not for Hue!

As a result, colors above Hue=255 (bright blue with a teeny bit of red, RGB value #3e00ff) are inaccessible. Once hue values hit 256, they are displayed by rolling back around to 0, e.g. color 300 (violet) is shown as color 44 (orange).

[RJ Skerry-Ryan (rryan)]

How embarrassing :) I imagine this has been a bug since 1.6.x or earlier (not sure when color schemes first made it in, but it was before I joined the project)

Thanks,
RJ Ryan

[RJ Skerry-Ryan (rryan)]

I added a fix that should go into Mixxx 1.10 (and Mixxx 1.9.2 if we ever release one)

Thanks,
RJ Ryan

[Swiftb0y (swiftb0y)]

Mixxx now uses GitHub for bug tracking. This bug has been migrated to:
https://github.com/mixxxdj/mixxx/issues/5957