def _platform_free(self):
"""Frees resources associated with this context."""
if self._context and self._context == osmesa.OSMesaGetCurrentContext():
osmesa.OSMesaMakeCurrent(None, None, GL.GL_FLOAT, 0, 0)
osmesa.OSMesaDestroyContext(self._context)
self._buffer = None
self._context = None
def runglmesa(draw=draw):
global ctx
if ctx is None:
ctx = osmesa.OSMesaCreateContext(osmesa.OSMESA_RGBA, None)
buf = arrays.GLubyteArray.zeros((h, w, 4))
assert (osmesa.OSMesaMakeCurrent(ctx, buf, GL_UNSIGNED_BYTE, w, h))
assert (osmesa.OSMesaGetCurrentContext())
initGL()
reshape(w, h)
display(draw)
data = glReadPixels(0, 0, w, h, GL_RGBA, GL_UNSIGNED_BYTE)
m = np.frombuffer(data, np.uint8)
m = m.reshape(w, h, 4)
m = np.flip(m, [0, 1])
return m