Arch Linux

ElMastro

Member

Registered: 2015-12-02

Posts: 70

gimp-gap PKGBUILD got a problem

Hello, I would like to fix the gimp-gap PKGBUILD.

  make -j1

comes out with

libavfilter/libmpcodecs/vf_screenshot.c:137:29: error: passing argument 2 of ‘sws_scale’ from incompatible pointer type [-Wincompatible-pointer-types]
  137 |     sws_scale(priv->ctx, mpi->planes, mpi->stride, 0, priv->dh, dst, dst_stride);
      |                          ~~~^~~~~~~~
      |                             |
      |                             unsigned char **

And the same error happens again after that passing "src" on line 160.

First thing: I couldn't get any documentation to understand this and I can't even figure from where mpi comes out.
Second (and maybe more important: My version is still working, but the source is abandoned, there is no official source and as long as I know the person that made this is impossible to found out (email seems to have been deleted or something like that). There is still sense in fixing this?
What I mean is, the code could be ported on github and made work (if there is a fix), but wouldn't this be like *stolen*?

Thank you in advance for your time and your patience

twelveeighty

Member

From: Alberta, Canada

Registered: 2011-09-04

Posts: 1,219

Re: gimp-gap PKGBUILD got a problem

Please use the Report button and ask a moderator to move your post to AUR Issues, gimp-gap is not in extra.

As for your "stolen" concern: that all depends on the gimp-gap license. Assuming it's open-sourced properly, you can host its code elsewhere.

WorMzy

Administrator

From: Scotland

Registered: 2010-06-16

Posts: 12,577

Website

Re: gimp-gap PKGBUILD got a problem

Mod note: moving to AUR Issues.

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ElMastro

Member

Registered: 2015-12-02

Posts: 70

Re: gimp-gap PKGBUILD got a problem

I apologize for my mistake.
However, as far as I know, the package should be under GPL version 3.

twelveeighty

Member

From: Alberta, Canada

Registered: 2011-09-04

Posts: 1,219

Re: gimp-gap PKGBUILD got a problem

It looks like it's technically "GPL-2.0-or-later" so GPLv3 should be OK for modifications. It's bizarre they didn't have a LICENSE file in the repo, I just checked some of the .c files for the header. If you want to take it on and host it on Github, then the project should probably be forked + renamed to make sure people are not bothering the original devs. The license allows for that, as long as you don't modify the license on the existing files or re-license the project to an compatible license to GPLv2/3.

However, since this project was archived 6 years ago, I would just abandon the AUR package; trying to maintain it you're probably in for a lot of pain dealing with dependencies and compiler migration.

I couldn't find any obvious successor for gimp-gap, did GIMP simply abandon animations, or was it taken over by another project?

Lone_Wolf

Administrator

From: Netherlands, Europe

Registered: 2005-10-04

Posts: 13,243

Re: gimp-gap PKGBUILD got a problem

Have you checked it the functionality is present in the soon-to-be-released gimp 3 ?

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ElMastro

Member

Registered: 2015-12-02

Posts: 70

Re: gimp-gap PKGBUILD got a problem

I couldn't find any obvious successor for gimp-gap, did GIMP simply abandon animations, or was it taken over by another project?

I have no idea. I never heard of another project. I wrote half a dozen of people who worked in it, no one eve answered. It seems like they vanished.

Have you checked it the functionality is present in the soon-to-be-released gimp 3 ?

No idea. I have Gimp 2.10.38-5 and here it works. I would be tempted to copy all the *.mo files and make a package, but I think it would work only fo my architecture (x86_64)

Sad as it sounds, it really seems this is a dead end for it, at least if some documentation doesn't spawn out.

mackin_cheese

Member

Registered: 2025-01-07

Posts: 146

Re: gimp-gap PKGBUILD got a problem

but I think it would work only fo my architecture (x86_64)

that shouldn't be an issue then, Arch Linux only supports x86_64 so that package should be good to go.

twelveeighty

Member

From: Alberta, Canada

Registered: 2011-09-04

Posts: 1,219

Re: gimp-gap PKGBUILD got a problem

Maybe post on the GIMP extension forum. That forums looks active and you may get someone on the inside to comment on whether gimp-gap is a dead end, or replaced by a different plugin in v3. The release notes for v3 don't mention animations at all, but perhaps there's a plugin in the works for it?

If not, it could be a decent development project if you want to take it on and fork the original project. That's assuming you do not have to refactor the entire thing, of course; but, then again, if you're into that, there's nothing wrong with that either.

ElMastro

Member

Registered: 2015-12-02

Posts: 70

Re: gimp-gap PKGBUILD got a problem

Maybe post on the GIMP extension forum.

Nice, I am doing it.

ElMastro

Member

Registered: 2015-12-02

Posts: 70

Re: gimp-gap PKGBUILD got a problem

Truth is I have done it, but nothing came out (https://www.gimp-forum.net/Thread-Information-about-GAP).

What could be done would be to build the "package" with fakepkg, move it to github and downloads the single files as plugins.
I am not sure about what would happen when Gimp upgrades.

loqs

Member

Registered: 2014-03-06

Posts: 18,227

Re: gimp-gap PKGBUILD got a problem

You fixed the build failure?

ElMastro

Member

Registered: 2015-12-02

Posts: 70

Re: gimp-gap PKGBUILD got a problem

@loqs, no, I didn't. What I mean is that we can repackage it and I have asked around as suggested. I "could" try to fix it, but before that I need to understand myself what this pointer is about, and now I can't even get from which library it comes from. Sorry, I am a bit slow right now, it's a busy period

a821

Member

Registered: 2012-10-31

Posts: 383

Re: gimp-gap PKGBUILD got a problem

Maybe try adding `-fpermissive` to CFLAGS?