Compiling Panda3D with CUDA Development Drivers and Ubuntu

Compiling or Editing the Panda Source
1

Hi,
I’m running 64-bit Ubuntu 10.04 LTS with the NVIDIA development drivers installed. I want to use a multithreaded version of Panda3D, so I’m compiling from source using the makepanda.py script. My compile command is:

./makepanda/makepanda.py --verbose --override "SIMPLE_THREADS=UNDEF" --installer --everything

The compilation fails while building mesadisplay_composite:

[ 46%] Building C++ object built/tmp/mesadisplay_composite.o
g++ -ftemplate-depth-30 -fPIC -c -o built/tmp/mesadisplay_composite.o -I/usr/include/python2.6 -Ibuilt/tmp -Ibuilt/include -DMAKEPANDA= -Ipanda/src/mesadisplay -Ipanda/src/glstuff -pthread -O2 -DBUILDING_PANDAMESA panda/src/mesadisplay/mesadisplay_composite.cxx
In file included from panda/src/mesadisplay/mesagsg.h:75,
                 from panda/src/mesadisplay/osMesaGraphicsPipe.h:21,
                 from panda/src/mesadisplay/osMesaGraphicsBuffer.h:20,
                 from panda/src/mesadisplay/config_mesadisplay.cxx:16,
                 from panda/src/mesadisplay/mesadisplay_composite1.cxx:1,
                 from panda/src/mesadisplay/mesadisplay_composite.cxx:1:
/usr/include/GL/osmesa.h:119: error: ‘GLAPI’ does not name a type
/usr/include/GL/osmesa.h:132: error: ‘GLAPI’ does not name a type
/usr/include/GL/osmesa.h:142: error: expected constructor, destructor, or type conversion before ‘void’
/usr/include/GL/osmesa.h:174: error: ‘GLAPI’ does not name a type
/usr/include/GL/osmesa.h:184: error: ‘GLAPI’ does not name a type
/usr/include/GL/osmesa.h:202: error: expected constructor, destructor, or type conversion before ‘void’
/usr/include/GL/osmesa.h:218: error: expected constructor, destructor, or type conversion before ‘void’
/usr/include/GL/osmesa.h:233: error: ‘GLAPI’ does not name a type
/usr/include/GL/osmesa.h:249: error: ‘GLAPI’ does not name a type
/usr/include/GL/osmesa.h:266: error: ‘GLAPI’ does not name a type
/usr/include/GL/osmesa.h:275: error: expected constructor, destructor, or type conversion before ‘void’
In file included from panda/src/mesadisplay/mesadisplay_composite1.cxx:2,
                 from panda/src/mesadisplay/mesadisplay_composite.cxx:1:
panda/src/mesadisplay/osMesaGraphicsBuffer.cxx: In member function ‘virtual bool OsMesaGraphicsBuffer::begin_frame(GraphicsOutput::FrameMode, Thread*)’:
panda/src/mesadisplay/osMesaGraphicsBuffer.cxx:69: error: ‘OSMesaMakeCurrent’ was not declared in this scope
In file included from panda/src/mesadisplay/mesadisplay_composite1.cxx:4,
                 from panda/src/mesadisplay/mesadisplay_composite.cxx:1:
panda/src/mesadisplay/osMesaGraphicsStateGuardian.cxx: In constructor ‘OSMesaGraphicsStateGuardian::OSMesaGraphicsStateGuardian(GraphicsEngine*, GraphicsPipe*, OSMesaGraphicsStateGuardian*)’:
panda/src/mesadisplay/osMesaGraphicsStateGuardian.cxx:35: error: ‘OSMesaCreateContext’ was not declared in this scope
panda/src/mesadisplay/osMesaGraphicsStateGuardian.cxx: In destructor ‘virtual OSMesaGraphicsStateGuardian::~OSMesaGraphicsStateGuardian()’:
panda/src/mesadisplay/osMesaGraphicsStateGuardian.cxx:49: error: ‘OSMesaDestroyContext’ was not declared in this scope
panda/src/mesadisplay/osMesaGraphicsStateGuardian.cxx: In member function ‘virtual void* OSMesaGraphicsStateGuardian::do_get_extension_func(const char*, const char*)’:
panda/src/mesadisplay/osMesaGraphicsStateGuardian.cxx:75: error: ‘OSMesaGetProcAddress’ was not declared in this scope
Process exited with exit status 1 and signal code 0

I have tried the compilation with the regular NVIDIA drivers installed, and it worked fine. I have also tried the .deb with the development drivers, it did not work.

Doing some investigating; GLAPI is normally defined in /usr/include/GL/gl.h which is included by /usr/include/GL/osmesa.h. The problem seems to relate to the fact that installing the CUDA drivers provides a new gl.h which undefines GLAPI at the end of the file. I have tried adding the “–no-osmesa” flag to the make command, but it made no difference.

Does anyone have any recommendations on where to go next? Has anyone successfully compiled Panda3D with CUDA drivers?

Thanks,
Jon

2

Sorry for the late reply, I forgot about this thread.

You should probably just compile without mesa support. You don’t need it, it’s a software renderer that nobody uses anymore (now that we have a tinydisplay renderer).

3

rdb,
No worries, better late than never.

I’ve tried compiling it without os-mesa

./makepanda/makepanda.py --verbose --override "SIMPLE_THREADS=UNDEF" --no-osmesa --installer --everything

but it still tries to compile mesadisplay_composite. That was the only directly mesa flag I can see for the installation script, but I also tried it with all the flags that seemed GL-related to my untrained eye.

./makepanda/makepanda.py --verbose --override "SIMPLE_THREADS=UNDEF" --no-osmesa --no-gl --no-gles --no-gles2 --no-egl --installer --everything

and it still didn’t work.

Would anyone know where I could find documentation on the various build flags? Or maybe recommend some other ones I should try using?

Thanks again,
Jon

4

You’re having --everything as last option, which overrides all of the --no options before that.

Having --everything --no-osmesa should make it compile.

5

Thanks rdb, that did the trick.

6

Actually it worked for a while, but when I tried it again to verify that I no longer needed some of the mesa-dev packages, it broke. I’ve put all the packages I took out back in and I still get:

ld: cannot find -lGL

[size=150]Edit[/size]:
I was able to fix this by manually relinking libGL.so. I guess removing the Mesa packages broke them. For anyone else who has this problem, make sure that:

ls -lah /usr/lib/libGL.so
ls -lah /usr/lib32/libGL.so
ls -lah /usr/lib64/libGL.so

all point to a valid library. On my machine, 2/3 pointed to ./libGL.so.1 and the 3rd pointed to mesa/libGL.so (which was no longer valid). I just replaced the broken link with a link to ./libGL.so.1 and it worked.