Hello, I would definitely try the latest source code. There are numerous fixes.
You can see what is working by running the tests. python -m pygame.tests best, On Thu, Jan 15, 2015 at 1:34 AM, Brian Madden <br...@missionpinball.com> wrote: > Hi Everyone, > > I have a weird issue which I'm hoping someone might be able to help with. > > I'm using pygame.image.tostring() on an 8-bit surface. (So it's > pygame.image.tostring(surface, 'P'). It works on one machine and does not > work on another, and I'm hoping someone can help me figure out why? > > The machine is works on is 32-bit Windows 7, Python 2.7.9 with Pygame > 1.9.2pre. > > The machine where it *doesn't* work is a BeagleBone Black (ARM processor) > with Linux, Python 2.7.3, Pygame 1.9.1release. > > On the BeagleBone, the tostring() method doesn't fail, but it just returns > an empty string. It's the exact same code, and everything else works. > > If I convert the surface to a PixelArray and print it, I see the data as > expected. If I use surface.get_at() and pick some random pixels, I see the > data as expected. It's just that tostring() in my program doesn't actually > work, but just on this one machine. > > What's really weird is that if I just type a little test program via the > Python interactive shell on the BeagleBone, the tostring() method *does* > work as expected. It's just in my program. But again I just don't get it > since the surface looks good via a PixelArray or get_at()?? Is there > anything that I could be doing to make tostring() not work? > > I realize this is Pygame 1.9.2pre versus 1.9.1release, though I've used > 1.9.2pre and 1.9.2a0 on other machines and my program works fine on those, > and I didn't see anything in the documentation about tostring() being > changed in 1.9.2. > > So.. any ideas? I guess I should try to build 1.9.2 for Linux? Has anyone > had any weird issues with Pygame on ARM? I'm using the dummy SDL driver on > this machine, but I confirmed that using that driver works on other > machines, and I can't imagine that's involved in tostring()? > > So, again, I'm stumped? > > Thanks a million! > Brian > > -- > *Brian Madden* > Mission Pinball (blog <http://missionpinball.com> | twitter > <https://twitter.com/missionpinball> | MPF software framework > <http://missionpinball.com/framework> | sample games > <https://missionpinball.com/blog/category/big-shot-em-conversion/>) >
