[vlc-devel] [PATCH] vout: add an OpenGL ES 2.0 vout display module for Android.

[Rémi Denis-Courmont]

Le mardi 7 janvier 2014, 19:19:46 Felix Abecassis a écrit :
> 2014/1/7 Rémi Denis-Courmont <remi at remlab.net>:
> > Uh? Obviously events generated by the windowing system from outside VLC
> > are
> > sent by the windowing system *to* the display plugin or window plugin, and
> > from the plugin to the core, not the other way around. I don't see how
> > that
> > would make any sense.
> 
> I'm not sure I understand what you mean when you say the event is
> passed from the plugin to the "core". Let me describe the process from
> my understanding and tell me if it is flawed or if we don't have the
> same vocabulary.

Sorry I can't follow you.

Events like window resize are generated by the windowing system. That's how 
things are. VLC has no say in this. This stuff gets passed onto VLC by 
platform-specific mechanism. In Android, that is made with the JNI calls; in 
X11, with X11 events on the X11 socket. The plugin translate it those events 
into the VLC abstraction, before the VLC core handles them in whatever way.

There are also "events" coming *from* the core to the plugins. But usually, 
these take the form of a callback invocation, notably pf_control(), and we do 
not refer to them as events.


Point being, catching and translating windowing system events should be the 
role of the vout window plugins, instead now of the vout display plugins. 
Reason is, those events are dependent on the windowing API, not the rendering 
API.

-- 
Rémi Denis-Courmont
http://www.remlab.net/