Add a context_update() virtual function

This permits us to flush and swap buffers when needed.

1 files changed, 5 insertions, 0 deletions

diff --git a/src/cairo-glx.cpp b/src/cairo-glx.cpp
index 4c6fffc..ac4c7dd 100644
--- a/src/cairo-glx.cpp
+++ b/src/cairo-glx.cpp
@@ -41,3 +41,8 @@ destroy_cairo_glx(void)
 {
     cleanup_state_glx(state);
 }
+
+void
+update_cairo_glx(void)
+{
+}