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[Octave-bug-tracker] [bug #49083] demo camlight fails using qt graphics_

From: Markus Mützel
Subject: [Octave-bug-tracker] [bug #49083] demo camlight fails using qt graphics_toolkit
Date: Wed, 14 Sep 2016 20:45:31 +0000 (UTC)
User-agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:49.0) Gecko/20100101 Firefox/49.0

Follow-up Comment #7, bug #49083 (project octave):

The same error seems to be raised several times in
opengl_renderer::init_gl_context () on Windows. The following lines set the gl
error to 1280 (GL_INVALID_ENUM):

        glEnable (GL_MULTISAMPLE);
        glGetIntegerv (GL_SAMPLE_BUFFERS, &iMultiSample);
        glGetIntegerv (GL_SAMPLES, &iNumSamples);
            glDisable (GL_MULTISAMPLE);

No errors with Ubuntu.

I have prepared a changeset that checks for these errors and should treat them
correctly. I will attach it here once cross-building has finished and I could
test. So probably not before tomorrow.


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