[PyOpenGL-Devel] [ pyopengl-Bugs-1892167 ] Shader related error reporting is broken

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Bugs item #1892167, was opened at 2008-02-12 14:36
Message generated for change (Comment added) made by mcfletch
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Category: None
Group: None
>Status: Closed
>Resolution: Fixed
Priority: 5
Private: No
Submitted By: Nobody/Anonymous (nobody)
Assigned to: Nobody/Anonymous (nobody)
Summary: Shader related error reporting is broken

Initial Comment:
In pyopengl-ctypes CVS:
When trying to compile an erroneous shader pyopengl returns the following error:

  File "/usr/lib/python2.5/site-packages/OpenGL/GL/VERSION/GL_2_0.py", line 85, in GLSLCheckError
    description= glGetInfoLog( cArguments[0] )
NameError: global name 'glGetInfoLog' is not defined

After adding "from OpenGL.GL.ARB.shader_objects import glGetInfoLogARB as glGetInfoLog" to GL_2.0.py the following error appears:

  File "/usr/lib/python2.5/site-packages/OpenGL/GL/ARB/shader_objects.py", line 120, in glGetInfoLogARB
    log = ctypes.create_string_buffer(length)
  File "/usr/lib/python2.5/ctypes/__init__.py", line 73, in create_string_buffer
    raise TypeError, init
TypeError: 220

The preceding call to glGetObjectParameterivARB returns a "length" that is of type numpy.int32 while ctypes expects long or int.
After casting "length" to int, the program now throws the proper GLError.

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>Comment By: Mike C. Fletcher (mcfletch)
Date: 2009-07-18 22:36

Message:
Shader info logs are working on shader capable machines.

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Comment By: Mike C. Fletcher (mcfletch)
Date: 2008-04-18 16:49

Message:
Logged In: YES 
user_id=34901
Originator: NO

Don't have a shader-capable system at the moment, I've integrated the
changes into CVS, guess we'll see whether they work when I get to a
shader-capable machine.

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