TGPictureButton does not load image from disk

[rlalik]

This bug report:

Reference from tutorial: https://root.cern.ch/doc/master/alice__vsd_8C.html

Describe the bug

By running one of the ROOT tutorials:

$ root alice_vsd.C

I do not see any button to change events (see the image above). Apparently, from the log:

gif2ASImage():2300:</usr/lib/root/6.22/icons/GoBack.gif> (null)
Warning in TASImage::GetMask: No image
gif2ASImage():2300:</usr/lib/root/6.22/icons/GoForward.gif> (null)
Warning in TASImage::GetMask: No image

however:

$ ls -all /usr/lib/root/6.22/icons/GoBack.gif /usr/lib/root/6.22/icons/GoForward.gif
-rw-r--r-- 1 root root 1177 11-27 16:00 /usr/lib/root/6.22/icons/GoBack.gif
-rw-r--r-- 1 root root 1166 11-27 16:00 /usr/lib/root/6.22/icons/GoForward.gif

Expected behavior

I expect to see buttons with figures.

To Reproduce

$ root alice_vsd.C

from the eve tutorials.

Setup

1. ROOT version: 6.22.06
2. Operating system: Linux Gentoo
3. How you obtained ROOT, such as dnf install / binary download / you built it yourself: compiled from sources via Gentoo package manager/portage, uses external libafterimage

[andriish]

Hi @rlalik ,

If I'm not mistaken, the reason could be that the graphic format is not supported with the build you have. I also think this is an issue of confusing message and is fixed in the master.

Best regards,

Andrii

[rlalik]

Which parameter/feature of root rules that?

$ root-config --features
cxx17 asimage builtin_clang builtin_llvm dataframe davix exceptions fortran gdml gsl_shared gviz http imt mathmore mlp minuit2 opengl pyroot qt5web roofit webgui root7 shared soversion ssl tmva tmva-cpu tmva-pymva spectrum unuran x11 xml

If this is libafterimage, then it is compiled to support gif:

[I] media-libs/libafterimage
     Available versions:  1.20-r2 1.20-r3 {+X examples gif jpeg nls opengl png +shaping shm static-libs svg tiff truetype CPU_FLAGS_X86="mmx"}
     Installed versions:  1.20-r3(03:15:10 AM 01/05/2021)(X gif jpeg nls png shaping svg tiff truetype -examples -shm -static-libs CPU_FLAGS_X86="mmx")
     Homepage:            http://www.afterstep.org/afterimage/index.php
     Description:         Afterstep's standalone generic image manipulation library

Can you also tell me which commit is about to fix it/do what you wrote above?

[bellenot]

@rlalik this might be due to the local (external) libAfterImage... Maybe @couet already saw this or has an idea. Or you could try to build from source with built-in libAfterImage?

[bellenot]

@rlalik @couet ping

[rlalik]

So I can confirm, that on Ubuntu-20.04.1:

• with external afterimage - do not work
• with built-in afterimage - do works

I also checked that on Ubuntu libAfterImage does not link against libgif.
And on my Gentoo it does:

$ ldd /usr/lib64/libAfterImage.so | grep gif
10:     libgif.so.7 => /usr/lib64/libgif.so.7 (0x00007f6ee1670000)

[bellenot]

Thanks! So I'll let @couet take care of this issue...

[couet]

Yes you should use the built-in afterimage. This is well known.

[github-actions]

Hi @couet,

It appears this issue is closed, but wasn't yet added to a project. Please add upcoming versions that will include the fix, or 'not applicable' otherwise.

Sincerely,
🤖