SCALE 8x: Color management for everyone
Posted Mar 5, 2010 23:39 UTC (Fri) by roelofs
In reply to: SCALE 8x: Color management for everyone
Parent article: SCALE 8x: Color management for everyone
ok. so the application would just need to pass some colour space metadata along with the pixels.
No--any application that does its own alpha-blending, for example, needs to convert the image(s) and background from their native color space(s) to linear (gamma = 1.0), do the compositing, and (usually) convert back. Other transformations (lighting/shading calculations and whatnot in 3D, IIRC) also require linear gamma for correctness. And it's hard to imagine a driver complex enough to support multi-source display app like a browser ("this block of pixels is linear, this block uses this custom ICC profile, that block is SGI/gamma-1.7, and everything else is sRGB"). Conceivably it's doable, but I'm not sure a driver is the best place for it.
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