Re: [Gimp-developer] [Gimp-user] Time to fork BABL and GEGL

[Saul Goode <saul crazyauntgail com>]

Simon Budig wrote:

> We need to make sure two things:> 
> a) upon import of an image the "userRGB"-format-descriptor within the
> images context needs to be set up to refer to the chromaticies of the
> source image.
>
> b) whenever a chromaticity dependent operation works on the images data
> the infrastructure needs to make sure that the pixel data gets fed into
> the operation using the chromaticies of the source image. We'll do this
> by having the operation request the image data in the "userRGB" format
> from the images context.
With regard to "b)", it is conceivable that the chromaticity dependent 
operation itself could be transformed to take into account the userRGB format 
description, such that the resulting transformed operation could be applied 
directly to the unbounded RGB data. In cases where doing so is advantageous, 
the implementer should have that option. The requirement should only be thatthe infrastructure produce the 
same result as if the operation were working 
in the userRGB colorspace.

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 > 
> a) upon import of an image the "userRGB"-format-descriptor within the
images context needs to be set up to refer to the chromaticies of the
source image.

b) whenever a chromaticity dependent operation works on the images data
the infrastructure needs to make sure that the pixel data gets fed into
the operation using the chromaticies of the source image. We'll do this
by having the operation request the image data in the "userRGB" format
from the images context.
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