[RFC wayland-protocols] Color management protocol

[Graeme Gill]

Niels Ole Salscheider wrote:

> Maybe I should reword it then. The intention of allowing to query the blending 
> space was to tell applications the preferred color space of a surface. That 
> is, if they do any color management they should create surfaces with that 
> color space to minimize computing time.

Sounds overly complex for a first cut.

> Anyway, this preferred space should probably not be sRGB if the compositor 
> cares about accurate colors. This is because there are many monitors that have 
> wider gamuts and you would clip the colors at that point.

See my previous suggestion - use a linearised light output display space
for compositing - it's simple, fast, and there are no gamut issues.

Graeme Gill.