Remove our own translation in the mouse event capture code, as that
translation will be done through the navigation interface.
Tested by resizing the window created by:
gst-launch-1.0 -v videotestsrc ! navigationtest ! glupload ! glcolorconvert ! tee name=t ! gtkglsink
and checking that the cursor follows the mouse as expected.
Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-good/-/merge_requests/974>
In case the format changed fast and the pending format is different
than the currently set but the currently set is equal to the pending
one we could end up having mismatch between the finally set format
and the data stream format.
https://bugzilla.gnome.org/show_bug.cgi?id=755542
We need to keep the active buffer (the one we have retreive a
texture id from) otherwise it's racy and upstream may upload
new content before we have rendered or during later redisplay.
This is a "pseudo" base class. Basically it's a shared instance
and class structure and a shared set of function between the
two widget. It cannot have it's own type like normal base class
since the one instance will implement GtkGLArea while the other
implements GtkDrawingAreay. To workaround this, the parent instance
and class is a union of both.
https://bugzilla.gnome.org/show_bug.cgi?id=752441
