Re: [Gimp-print-devel] GIMP 2.10 plugin

[Solomon P. <pi...@sh...>]

On Sun, Nov 25, 2018 at 10:09:31PM -0500, Robert Krawitz wrote:
> I'm starting work on updating the plugin to work with GIMP 2.10.  That
> has important additional functionality (in particular, high bit
> depth).

Out of curiousity, how is this stuff coming along?

I recently ran into problems when trying to use the gimp plugin with a 
"32-bit linear floating point" image generated by darktable -- the 
preview and resulting print are far too dark, due to the linearity.  It 
seems GIMP doesn't automagically do the right thing (is there always a 
right thing?) with respect to linearity for legacy plugins; even the 
thumbnail isn't getting rendered properly.

The TIFF export plugin provides a good template of what we'd need to do 
to enable the full suite of what gutenprint supports (ie 8bpp nonlinear 
and 16bpp linear/nonlinear, plus RGB vs CMY[K]!) but that will require 
reworking the entire plugin flow to use APIs introduced in Gimp 2.10, 
with no sane backwards-compatible path..

 - Solomon
-- 
Solomon Peachy			       pizza at shaftnet dot org
High Springs, FL                          ^^ (email/xmpp) ^^
Quidquid latine dictum sit, altum videtur.