Thank you everyone for the kind response! I've decided to stay with 2.8 APIs, so I won't use GEGL for now. Going back to the initial question, what's the best example to see how to iterate a 5x5 mask (but size could be variable) for each pixel without losing performance? In particular, what combination of functions should I use (talking about gimpdrawable, pixelrgn, iterators and so on)? Thank you again Ale > Subject: Re: How to deal with pixel-per-pixel operations? > From: mitch@xxxxxxxx > To: alessandrofrancesconi@xxxxxxx > CC: pippin@xxxxxxxx; gimp-developer-list@xxxxxxxxx > Date: Tue, 11 Jun 2013 15:47:34 +0200 > > On Tue, 2013-06-11 at 14:03 +0200, Alessandro Francesconi wrote: > > Got problems here... > > > > Following the goat example, I downloaded the libgegl-dev 0.2 package (I'm on Debian) > > For GIMP git master, you need babl master and gegl master, no tarballs. > > --Mitch > > > and I've started including the necessary libs in my source code: > > > > ----- > > #include <libgimp/gimp.h> > > > > #include <libgimp/gimpui.h> > > > > #include <gegl.h> > > ----- > > > > gegl_init() is recognized, but gimp_drawable_get_buffer() and gimp_drawable_get_shadow_buffer() don't. > > They appears to be defined in the git repository, here: https://git.gnome.org/browse/gimp/tree/libgimp/gimpdrawable.h > > But looking at the gimp 2.8.4 libs I have in my machine, gimpdrawable.h does not contain those definitions! > > > > Don't tell me... gimp_drawable_get_buffer() and similar are not yet in the set of available APIs for GIMP-dev 2.8.4.... is it right? How can I develop a GEGL plugin for 2.8.4 application in these conditions? .-. > > > > > > Sincerely, > > (a bit angry) Ale > > > > > > > From: alessandrofrancesconi@xxxxxxx > > > To: pippin@xxxxxxxx > > > Date: Tue, 11 Jun 2013 10:53:26 +0000 > > > CC: gimp-developer-list@xxxxxxxxx > > > Subject: Re: How to deal with pixel-per-pixel operations? > > > > > > Thank you so much! > > > > > > > > > > > > Ale > > > > > > > > > > > > Da: Øyvind Kolås > > > Data invio: martedì 11 giugno 2013 12.49 > > > A: Alessandro Francesconi > > > Cc: gimp-developer-list@xxxxxxxxx > > > > > > On Tue, Jun 11, 2013 at 11:05 AM, Alessandro Francesconi <alessandrofrancesconi@xxxxxxx> wrote: > > > > > > > > > Thanks for the answer, I’m not new on GIMP plugin’s development but I’m totally new on GEGL operations! > > > > > > After a first look, it seems that none of the standard plugins from the GIMP’s procedure database use GEGL for their operations, and the only way to test a operation made with GEGL is to open this dialog: http://docs.gimp.org/it/gimp-tool-gegl.html > > > > > > .... am I wrong? > > > > > > > > > I mean, is it possible to define a new plugin using the classical method with ’gimp_install_procedure()’, making it accessible through the PDB and writing a ”complex” user interface with GTK, but using GEGL APIs for the image manipulation phase? > > > > > > > > > > > > > > > Take a look at goat-exercise.c in gimp/plug-ins/common, it shows how to get and manipulate image drawables as GeglBuffers. For documentation on GEGL see http://gegl.org/ or the docs dir of your own GEGL build. > > > > > > > > > > > > > > > /Ø > > > -- > > > «The future is already here. It's just not very evenly distributed» > > > -- William Gibson > > > http://pippin.gimp.org/ http://ffii.org/ > > > _______________________________________________ > > > gimp-developer-list mailing list > > > gimp-developer-list@xxxxxxxxx > > > https://mail.gnome.org/mailman/listinfo/gimp-developer-list > > > > _______________________________________________ > > gimp-developer-list mailing list > > gimp-developer-list@xxxxxxxxx > > https://mail.gnome.org/mailman/listinfo/gimp-developer-list > > _______________________________________________ gimp-developer-list mailing list gimp-developer-list@xxxxxxxxx https://mail.gnome.org/mailman/listinfo/gimp-developer-list
