[patches] Add a color management framework to weston

[Bill Spitzak]

Richard Hughes wrote:
> On 4 April 2013 19:08, Bill Spitzak <spitzak at gmail.com> wrote:
>> Are clients supposed to tell the compositor what color space their buffer
>> is, and the compositor then converts to the output's color space as part of
>> the compositing step?
> 
> At the moment I'm just implementing the calibration state setting,
> i.e. setting the gamma ramps from the VCGT data. When we have
> sub-surfaces to play with I was going to look at tagging subsurfaces
> with different color spaces and setting up shaders to do the color
> conversion to display space, but for the moment I was trying to keep
> it simple.

Okay, it does sound like the compositor is doing the conversion.

These gamma ramps are an attempt to simulate a color conversion from 
some color space (sRGB?) to the color space of the output device. So 
does this mean that the default color space of the buffers a client 
renders is sRGB?