The aim is that it should be a requirement that all Cogl applications
hook their mainloops into Cogl so we should lead by examples. Most of
the examples now just call cogl_poll_get_info and then g_poll with a
zero timeout so that they can continue to constantly redraw.
The SDL example is a bit special because SDL makes it very difficult
to wait on either a timeout or any file descriptors. The SDL winsys is
documented not to require blocking on any file descriptors so we can
ignore that. It implements the timeout by adding an SDL timer which
pushes an event to the queue to wake up SDL_GetEvent.
The Cogland example was already using the glib main loop so that one
has been updated to add the CoglGLibSource to it.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
The size of the framebuffer may not be the size of the framebuffer that we
requested - we should use the actual size of the framebuffer in the
calculations to position the crate in the center.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
Previously the crate example incremented the angle of rotation of the
cube every frame so depending on the framerate the cube might rotate
too fast to see. This just changes it to calculate the rotation based
on the elapsed time using a GTimer. The rate that frames are drawn is
unaffected.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
This namespaces all of the examples and marks them for installation
if --enable-examples-install has been passed to ./configure. This
simplifies packaging the examples which can be quite convenient
for smoke testing Cogl on various platform.
https://bugzilla.gnome.org/show_bug.cgi?id=656755
Reviewed-by: Neil Roberts <neil@linux.intel.com>
