Stephen Newman <stephenharmonnew...@gmail.com> writes: > To whom it may concern, > > I am finding myself unable to create a pyopencl context which can interface > with OpenGL. Upon running the following code: > from OpenGL import GLX > import OpenGL.GL as gl > import OpenGL > import pyopencl as cl > from pyopencl.tools import get_gl_sharing_context_properties > platform = cl.get_platforms()[0] > props=[(cl.context_properties.PLATFORM, > platform)]+get_gl_sharing_context_properties() > print (props) > ctx = cl.Context(properties=props) > > I get the following: > [(4228, <pyopencl.Platform 'NVIDIA CUDA' at 0x55fecb4a14b0>), (8200, > <OpenGL.raw.GLX._types.LP_struct___GLXcontextRec object at > 0x7f37dcee91e0>), (8202, <OpenGL.raw.GLX._types.LP_struct__XDisplay object > at 0x7f378907de18>)] > Traceback (most recent call last): > File "/home/myname/Desktop/myprogram/main.py", line 9, in <module> > ctx = cl.Context(properties=props) > RuntimeError: Unable to cast Python instance to C++ type (compile in debug > mode for details) > > I also don't know how to compile in debug mode (apologies), so I'm > struggling to diagnose the problem. Any help or advice would be appreciated.
I think what's needed is a way to convert that XDisplay object to a raw pointer. It seems that the way PyOpenGL handles that changes periodically, so I'd be happy to take a patch that updates it to the most recent way. I don't have hardware to test GL interop (all my GPUs are headless), so I'll have to rely on you to help me. Thanks, Andreas
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