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/skia-image.cpp b/src/skia-image.cpp
index da0dbc9..22d962c 100644
--- a/src/skia-image.cpp
+++ b/src/skia-image.cpp
@@ -21,3 +21,8 @@ destroy_skia_image(void)
 {
     cleanup_state_image(state);
 }
+
+void
+update_skia_image(void)
+{
+}