[cairo] [RFC] Color space API (partial proposal)

[Bill Spitzak]

Kai-Uwe Behrmann wrote:

> Again I do not think than ICC colour spaces have some configuration of 
> blending. The user app has to select a blending space, convert each 
> colour to that and then do the blending and store the result in the 
> surface. So I would tent to 1) with the irritation that I miss the term 
> blending space. But perhaps you mean destination space there as blending 
> space.

It sounds like it works like I was assuming and hoping. The "blending 
space" is "a space whereby the numbers are linearly added to combine 
colors". Ie all the magic is done in the conversion to this blending 
space, not in the space itself.