glGetUniformIndices

Hi guys,

I've written the following wrapper-code for glGetUniformIndices:

@lazy( glGetUniformIndices )

def glGetUniformIndices(baseOperation, program, uniformNames):

num = len(uniformNames)

maxLen = max([len(x) for x in uniformNames])+1

names = ((ctypes.c_char * maxLen) * num)()

for i,name in enumerate(uniformNames):

names[i].value = name

c_names = ctypes.cast(ctypes.pointer(ctypes.pointer(names)),

ctypes.POINTER(ctypes.POINTER(OpenGL.constants.GLchar)))

obuff = (ctypes.c_uint32 * num)()

print ctypes.byref(obuff)

print c_names

print "Before", baseOperation.__name__

baseOperation(program, num, c_names, ctypes.byref(obuff))

print "After", baseOperation.__name__

return [o.value for o in obuff]

It always segfaults somewhere in my nVidia driver when I try to call it (the print statements are just for debugging). Has anyone ever achieved to call this function from within PyOpenGL? I am sure, that it segfaults because of wrong parameters in the baseOperation call, but I don't know how to call it correctly. Any ideas?

Cheers

SMS schreiben mit WEB.DE FreeMail - einfach, schnell und
kostenguenstig. Jetzt gleich testen! http://f.web.de/?mc=021192

------------------------------------------------------------------------------
RSA(R) Conference 2012
Mar 27 - Feb 2
Save $400 by Jan. 27
Register now!
http://p.sf.net/sfu/rsa-sfdev2dev2

_______________________________________________
PyOpenGL Homepage
http://pyopengl.sourceforge.net
_______________________________________________
PyOpenGL-Users mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/pyopengl-users