Oh, you're right! I don't know why I silently fail when the file doesn't exist. That was stupid.
And I can see that I'm installing all resource files except for the shaders directory. That's the problem. My bad; I'm an idiot. Thanks. I'll resnap later today after work when I get the chance between toddler screams and house work. > On Jan 30, 2017, at 6:47 AM, Stephen M. Webb <stephen.w...@canonical.com> > wrote: > >> On 2017-01-30 01:56 AM, Spencer Parkin wrote: >> >> I have a program that has successfully snapped and run in confinement mode, >> but then I added a pixel and vertex shader >> which works when run on my classic system, but not in strict confinement as >> a snap. I've tried to narrow down the >> earliest fail point, and I believe it is at the point where I'm calling >> glGetUniformFromLocation. This is returning -1 >> in confinement mode. I'm able to read, compile and link my shader program, >> and bind it, but the first call to >> glGetUniformFromLocation fails. Is OpenGL being denied read-access to a >> portion of protected memory? If so, it >> certainly would fail to write there as well with a call to glUniform3f, for >> example. >> >> I've tried hooking up the snappy-debug's log-observe plug to that of ubuntu >> core's, then running the scanlog, but the >> only app-armer denial I get is, I believe, unrelated to the problem. In any >> case, I will give it here... >> >> Log: apparmer="DENIED" operation="open" >> profile="snap.twistypuzzle.twistypuzzle" name="/usr/share/glib-2.0/schemas/" >> pid=23593 comm="desktop-launch" request_mask="r" denied_mask="r" fsuid=1000 >> ouid=0 >> File: /usr/share/glib-2.0/schemas/ (read) > > That error message is because the launcher program "desktop-launch" can not > find the gsettings. I don't know what > impact that will have (if any) but it's not going to affect how OpenGL works > internally. > > Your glGetUniformFromLocation() sounds more like you haven't compiled the > shader. You code contains no error handling > if the shader file itself is not found, only if the shader file is found and > fails to compile. My guess is the shader > sources are not getting found under confinement. > > -- > Stephen M. Webb <stephen.w...@canonical.com> > > -- > Snapcraft mailing list > Snapcraft@lists.snapcraft.io > Modify settings or unsubscribe at: > https://lists.ubuntu.com/mailman/listinfo/snapcraft -- Snapcraft mailing list Snapcraft@lists.snapcraft.io Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/snapcraft
