In some scenarios, for example in QtWebKit, might be difficult to obtain full
control on the egl display and it might be only accessible indirectly via
eglGetCurrentDisplay().
https://bugzilla.gnome.org/show_bug.cgi?id=700058
gstegladaptation_egl.c: In function 'gst_egl_adaptation_create_native_window':
gstegladaptation_egl.c:868:3: error: format '%p' expects argument of type 'void *', but argument 8 has type 'EGLNativeWindowType' [-Werror=format=]
GST_DEBUG_OBJECT (ctx->element, "Using window handle %p", window);
^
Put EGL specific code to a separate file and create the same functions
for EAGL, the Apple's specific EGL implementaton.
At this point, the EAGL version wasn't compiled or tested as there isn't
any simple documented way to build 1.0 for iOS. This code for the EAGL
version is still the 0.10 version, some updates should be made when 1.0
is buildable for iOS.
