From 5f206dab356e378ff1e7f22fdb03d986b1974df8 Mon Sep 17 00:00:00 2001
From: "Mike C. Fletcher" <mcfletch@vrplumber.com>
Date: Sat, 28 Dec 2019 11:49:07 -0500
Subject: [PATCH] DEMO provide a running version of code in bug report in #34

---
 tests/gh_bug32.py | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)
 create mode 100644 tests/gh_bug32.py

diff --git a/tests/gh_bug32.py b/tests/gh_bug32.py
new file mode 100644
index 00000000..012d2b2f
--- /dev/null
+++ b/tests/gh_bug32.py
@@ -0,0 +1,24 @@
+#! /usr/bin/env python
+"""Tests bug report #32 from github"""
+import os
+if not os.environ.get( 'PYOPENGL_PLATFORM' ):
+    os.environ['PYOPENGL_PLATFORM'] = 'osmesa'
+from math import pi, sin, cos
+import OpenGL
+OpenGL.USE_ACCELERATE = False
+from OpenGL.GL import *
+from OpenGL.GL.ARB.fragment_program import glGenProgramsARB
+from OpenGL.GLU import *
+from OpenGL.osmesa import *
+width = height = 300
+
+shared_win = None
+# Current OSMesa does not seem to support RGB, only RGBA,
+# note also the use of the OSMESA_* constants here, they
+# seem to match the GL constants, but can't be too careful.
+# Also see ./osdemo.py for a working sample of offscreen
+# rendering using OSMesa.
+ctx = OSMesaCreateContext(OSMESA_RGBA, shared_win)
+buf = arrays.GLubyteArray.zeros((height, width, 4))
+mesap = arrays.ArrayDatatype.dataPointer(buf)
+assert(OSMesaMakeCurrent(ctx, GLuint(mesap), GL_UNSIGNED_BYTE, width, height))
\ No newline at end of file