Detect when OpenGL is unavailable

[ghost]

File "friture\plotting\glCanvasWidget.py", line 160, in tryGlGetString
File "errorchecker.pyx", line 53, in OpenGL_accelerate.errorchecker._ErrorChecker.glCheckError (src\errorchecker.c:1218)
OpenGL.error.GLError: GLError(
err = 1280,
description = b'\xed\xe5\xe4\xee\xef\xf3\xf1\xf2\xe8\xec\xfb\xe9 \xfd\xeb\xe5\xec\xe5\xed\xf2 \xef\xe5\xf0\xe5\xf7\xe8\xf1\xeb\xe5...,
baseOperation = glGetString,
cArguments = (GL_SHADING_LANGUAGE_VERSION,)
)
2018-10-29 11:30:30,312 WARNING OpenGL.arrays.numpymodule: Unable to load numpy_formathandler accelerator from OpenGL_accelerate
2018-10-29 11:30:30,313 ERROR friture.plotting.glCanvasWidget: glGetIntegerv failed
Traceback (most recent call last):
File "friture\plotting\glCanvasWidget.py", line 167, in tryGlGetIntegerv
File "latebind.pyx", line 32, in OpenGL_accelerate.latebind.LateBind.call (src\latebind.c:989)
File "wrapper.pyx", line 318, in OpenGL_accelerate.wrapper.Wrapper.call (src\wrapper.c:6561)
File "wrapper.pyx", line 311, in OpenGL_accelerate.wrapper.Wrapper.call (src\wrapper.c:6439)
File "site-packages\OpenGL\platform\baseplatform.py", line 402, in call
File "errorchecker.pyx", line 53, in OpenGL_accelerate.errorchecker._ErrorChecker.glCheckError (src\errorchecker.c:1218)
OpenGL.error.GLError: GLError(
err = 1280,
description = b'\xed\xe5\xe4\xee\xef\xf3\xf1\xf2\xe8\xec\xfb\xe9 \xfd\xeb\xe5\xec\xe5\xed\xf2 \xef\xe5\xf0\xe5\xf7\xe8\xf1\xeb\xe5...,
baseOperation = glGetIntegerv,
pyArgs = (
GL_NUM_EXTENSIONS,
<object object at 0x04228C90>,
),
cArgs = (
GL_NUM_EXTENSIONS,
array([0], dtype=int32),
),
cArguments = (
GL_NUM_EXTENSIONS,
array([0], dtype=int32),
)
)
2018-10-29 11:30:30,314 INFO friture.plotting.glCanvasWidget: Microsoft Corporation, GDI Generic, Version: 1.1.0, Shaders: unknown, Extensions: unknown
2018-10-29 11:30:30,315 CRITICAL friture.exceptionhandler: Unhandled exception: Traceback (most recent call last):
File "friture\plotting\glCanvasWidget.py", line 226, in initializeGL
File "site-packages\OpenGL\GL\shaders.py", line 213, in compileShader
File "latebind.pyx", line 31, in OpenGL_accelerate.latebind.LateBind.call (src\latebind.c:965)
File "site-packages\OpenGL\extensions.py", line 245, in finalise
OpenGL.error.NullFunctionError: Attempt to call an undefined alternate function (glCreateShader, glCreateShaderObjectARB), check for bool(glCreateShader) before calling

2018-10-29 11:30:30,453 INFO friture.ringbuffer: Ringbuffer: growing buffer for length 15360

[tlecomte]

Dear @Dmeatray could you please tell us more about your setup (Windows I guess ?), how you installed Friture, and what you observed ? From the logs it seems that maybe Friture crashed because there was no suitable OpenGL implementation in your machine, but it's just a guess. Thanks!