def test_buffer_unmap_invalidates(self):
point = dtype([('position', pos), ('UV', uv)])
buf = Buffer()
buf.target = GL.GL_ARRAY_BUFFER
buf[...] = numpy.zeros((20, 5), dtype=point)
m = buf.map()
buf.unmap()
with self.assertRaises(IndexError):
m[0]
with self.assertRaises(IndexError):
m[0] = 1
def test_subbuffer_map(self):
point = dtype([('position', pos), ('UV', uv)])
buf = Buffer()
with buf.bind(GL.GL_ARRAY_BUFFER):
buf[...] = numpy.zeros((20, 5), dtype=point)
m = buf[0].map()
self.assertTrue(buf.mapped)
np_test.assert_equal(m, numpy.zeros(5, dtype=point))
m[0] = numpy.ones(1, dtype=point)
with buf.bind(GL.GL_ARRAY_BUFFER):
buf.unmap()
self.assertFalse(buf.mapped)
with buf.bind(GL.GL_ARRAY_BUFFER):
m = buf[0].map()
np_test.assert_equal(m[0], numpy.ones(1, dtype=point))
np_test.assert_equal(m[1:], numpy.zeros(4, dtype=point))
with buf.bind(GL.GL_ARRAY_BUFFER):
buf.unmap()