tree 603e72069d8754e13ca4f1660eb382eda763c662
parent 1f411902dea5451e37d94293f023fbc1f5381a0d
author Chia-I Wu <olvaffe@gmail.com> 1288336817 +0800
committer Kristian Høgsberg <krh@bitplanet.net> 1288370997 -0400

Make sure there is a current context.

The context of a display is shared with the cairo device.
cairo_acquire_device should be called whenever OpenGL calls are made.