Re: [osg-users] Running an OpenGL program with mesa instead of the platform's OpenGL driver?
Hi J-S, The only that comes to my mind is change all RPATHS on dependent libraries. This is a little bit complicated, and maybe a "I need to reinstall OS" :S. Using "otool -L" you can see all the rpaths associated to a library or executable in mac. Using "install_name_tool" you can change a concrete rpath for a library or executable. Some preinstalled frameworks and libraries on macosx have their rpaths prefixed, so doing this you can point all these libraries to your mesa libraries. To avoid a complete mess in your system, maybe you can copy all frameworks and libraries to a dir, and change all rpaths of all these libraries and your applications. But this is really tricky. There are also the env var DYLD_FRAMEWORK_PATH, that could help. Good luck! Rafa. 2010/9/20 Jean-Sébastien Guay : > Hi Jordi, > >> Did you try LD_PRELOAD? Something like 'export >> LD_PRELOAD=/usr/lib/mesa/libGL.so' >> May be it can do the trick.. > > Seems like the MacOSX version of LD_PRELOAD is DYLD_INSERT_LIBRARIES. So > having built a recent mesa now, I tried: > > DYLD_INSERT_LIBRARIES=...path/to/libGL.dylib osgversion > > and I get the same message: > > dyld: Symbol not found: _gll_noop > Referenced from: > /System/Library/Frameworks/OpenGL.framework/Versions/A/OpenGL > Expected in: /sw/lib/mesa/libGL.1.dylib > in /System/Library/Frameworks/OpenGL.framework/Versions/A/OpenGL > Trace/BPT trap > > I can run with DYLD_PRINT_LIBRARIES=YES and I see each library that's > loaded. The problem seems to come from the fact that the QuartzCore library > (and others) depends on other libraries that are in the OpenGL.framework, so > it loads that all the time, even if I want to use Mesa in its place. > > Seems to me there's too much magic going on behind the scenes for Mesa to be > usable under MacOS X. Other libraries (including the window system) depend > on OpenGL and shared libraries are being loaded from other places on the > system... Unless someone with more knowledge than me in this area could > help, I'm stuck. :-( > > J-S > -- > __ > Jean-Sebastien Guay jean-sebastien.g...@cm-labs.com > http://www.cm-labs.com/ > http://whitestar02.webhop.org/ > ___ > osg-users mailing list > osg-users@lists.openscenegraph.org > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > -- Rafael Gaitán Linares Instituto de Automática e Informática Industrial http://www.ai2.upv.es http://gvsig3d.blogspot.com Ciudad Politécnica de la Innovación Universidad Politécnica de Valencia ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Running an OpenGL program with mesa instead of the platform's OpenGL driver?
Hi Jordi, Did you try LD_PRELOAD? Something like 'export LD_PRELOAD=/usr/lib/mesa/libGL.so' May be it can do the trick.. Seems like the MacOSX version of LD_PRELOAD is DYLD_INSERT_LIBRARIES. So having built a recent mesa now, I tried: DYLD_INSERT_LIBRARIES=...path/to/libGL.dylib osgversion and I get the same message: dyld: Symbol not found: _gll_noop Referenced from: /System/Library/Frameworks/OpenGL.framework/Versions/A/OpenGL Expected in: /sw/lib/mesa/libGL.1.dylib in /System/Library/Frameworks/OpenGL.framework/Versions/A/OpenGL Trace/BPT trap I can run with DYLD_PRINT_LIBRARIES=YES and I see each library that's loaded. The problem seems to come from the fact that the QuartzCore library (and others) depends on other libraries that are in the OpenGL.framework, so it loads that all the time, even if I want to use Mesa in its place. Seems to me there's too much magic going on behind the scenes for Mesa to be usable under MacOS X. Other libraries (including the window system) depend on OpenGL and shared libraries are being loaded from other places on the system... Unless someone with more knowledge than me in this area could help, I'm stuck. :-( J-S -- __ Jean-Sebastien Guayjean-sebastien.g...@cm-labs.com http://www.cm-labs.com/ http://whitestar02.webhop.org/ ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Running an OpenGL program with mesa instead of the platform's OpenGL driver?
Hi J-S, Did you try LD_PRELOAD? Something like 'export LD_PRELOAD=/usr/lib/mesa/libGL.so' May be it can do the trick.. Cheers. 2010/9/20 Jean-Sébastien Guay > Hi Alberto, > > > I don't know why is it different on Mac, but on Linux just setting the >> LD_LIBRARY_PATH as you did is the way to go, since both libraries must >> have the same ABI. For example, when one installs the nVidia libraries >> on Linux, the installer just substitutes the old ones (e.g. Mesa) by the >> new accelerated .so's. >> > > Interesting, good to know. It seemed to work except for the missing symbol, > so I'm now just trying to compile a more recent Mesa myself to see if that > will work. I will rebuild OSG with the platform-default OpenGL and try > changing the LD_LIBRARY_PATH and DYLD_LIBRARY_PATH to use Mesa since that's > supposed to work. > > Thanks for the pointers. > > > J-S > -- > __ > Jean-Sebastien Guayjean-sebastien.g...@cm-labs.com > http://www.cm-labs.com/ >http://whitestar02.webhop.org/ > ___ > osg-users mailing list > osg-users@lists.openscenegraph.org > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > -- Jordi Torres Fabra gvSIG 3D blog http://gvsig3d.blogspot.com Instituto de Automática e Informática Industrial http://www.ai2.upv.es ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Running an OpenGL program with mesa instead of the platform's OpenGL driver?
Hi Alberto, I don't know why is it different on Mac, but on Linux just setting the LD_LIBRARY_PATH as you did is the way to go, since both libraries must have the same ABI. For example, when one installs the nVidia libraries on Linux, the installer just substitutes the old ones (e.g. Mesa) by the new accelerated .so's. Interesting, good to know. It seemed to work except for the missing symbol, so I'm now just trying to compile a more recent Mesa myself to see if that will work. I will rebuild OSG with the platform-default OpenGL and try changing the LD_LIBRARY_PATH and DYLD_LIBRARY_PATH to use Mesa since that's supposed to work. Thanks for the pointers. J-S -- __ Jean-Sebastien Guayjean-sebastien.g...@cm-labs.com http://www.cm-labs.com/ http://whitestar02.webhop.org/ ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Running an OpenGL program with mesa instead of the platform's OpenGL driver?
Jean-Sébastien Guay writes: > A bit of a general question, does anyone know how to run an OpenGL > program with mesa instead of the platform's OpenGL driver? Is it > supposed to require a recompile? Hi J-S, I don't know why is it different on Mac, but on Linux just setting the LD_LIBRARY_PATH as you did is the way to go, since both libraries must have the same ABI. For example, when one installs the nVidia libraries on Linux, the installer just substitutes the old ones (e.g. Mesa) by the new accelerated .so's. -- Alberto ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Running an OpenGL program with mesa instead of the platform's OpenGL driver?
Hi all, A bit of a general question, does anyone know how to run an OpenGL program with mesa instead of the platform's OpenGL driver? Is it supposed to require a recompile? I want to run osgviewer using mesa to compare this with my machine's OpenGL drivers. I'm doing this on MacOS X, BTW, compiled by configuring in CMake to build with makefiles. I tried two things, without recompiling (i.e. compiling with the platform's OpenGL but using mesa at runtime) and recompiling (i.e. using mesa both at compilation and at runtime), and I'm getting the same results for both... I set: $LD_LIBRARY_PATH=(mesa lib path):$LD_LIBRARY_PATH $DYLD_LIBRARY_PATH=(mesa lib path):$DYLD_LIBRARY_PATH so that osgviewer finds the mesa .so's first before the platform-installed ones, but then I get this message: $ osgversion dyld: Symbol not found: _gll_noop Referenced from: /System/Library/Frameworks/OpenGL.framework/Versions/A/OpenGL Expected in: /sw/lib/mesa/libGL.1.dylib in /System/Library/Frameworks/OpenGL.framework/Versions/A/OpenGL Trace/BPT trap $ osgviewer --window 50 50 800 600 cow.osg dyld: Symbol not found: _gll_noop Referenced from: /System/Library/Frameworks/OpenGL.framework/Versions/A/OpenGL Expected in: /sw/lib/mesa/libGL.1.dylib in /System/Library/Frameworks/OpenGL.framework/Versions/A/OpenGL Trace/BPT trap It looks like the binary is still looking for OpenGL in /System/Library/Frameworks/OpenGL.framework (in both cases), which I would have thought wouldn't happen if I compile with mesa... And it also looks like the mesa lib is missing a symbol... In the CMake window, I can't see any reference to /System/Library/Frameworks/OpenGL.framework (I've replaced all of them with the equivalent mesa libs/include paths). I'm pretty novice at Linux/Unix development, I'm sure there's a way to check which shared libraries an executable will look for at runtime? Another detail, the mesa I'm using was downloaded with fink, it's version 7.0.2-2. It's from November 2007. Perhaps I should uninstall that and build mesa 7.8.2 (June 2010) from source? I think I'll do this while I wait for a reply on this thread. Nov 2007 seems a really long time ago :-) Has anyone done this? Could anyone offer some guidance? Thanks, J-S -- __ Jean-Sebastien Guayjean-sebastien.g...@cm-labs.com http://www.cm-labs.com/ http://whitestar02.webhop.org/ ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
