This is very useful, as almost all GL code wants to recalculate the cameras each time the window size changes.
37d0159 GtkGLArea: Add resize signal
gtk/gtkglarea.c | 68 +++++++++++++++++++++++++++++++++++++++++++++++--------
gtk/gtkglarea.h | 3 +++
2 files changed, 61 insertions(+), 10 deletions(-)
Upstream: git.gnome.org