1_agl-compositor: Mention agl-shell-app-id for migrating apps

Besides using the agl-shell-desktop protocol one can use agl-shell-app-id
to migrate surfaces to other local, or remote outputs.

Bug-AGL: SPEC-3820

Signed-off-by: Marius Vlad <marius.vlad@collabora.com>
Change-Id: Ifdb5853a9a3eaf9dc041d68596c353548437c64b
Reviewed-on: https://gerrit.automotivelinux.org/gerrit/c/AGL/documentation/+/26136
Tested-by: Jan-Simon Moeller <jsmoeller@linuxfoundation.org>
Reviewed-by: Jan-Simon Moeller <jsmoeller@linuxfoundation.org>

diff --git a/docs/5_Component_Documentation/1_agl-compositor.md b/docs/5_Component_Documentation/1_agl-compositor.md
index 666a2fa..e4e69f0 100644 (file)
--- a/docs/5_Component_Documentation/1_agl-compositor.md
+++ b/docs/5_Component_Documentation/1_agl-compositor.md
@@ -192,6 +192,12 @@ implemented by the client, for instance [xdg-output](https://gitlab.freedesktop.
 is the one recommended way and provides a mapping between a human
 representation of the output and the wayland one.
 
+One can also choose the output where the application can start, by configuring
+directly the AGL compositor. Under the `[output]` section one can use
+`agl-shell-app-id=appid` restart the AGL compositor unitd systemd service and
+start the application. Currently this *only* applies to regular applications, the
+client shell having to handle it in the code.
+
 ## Available toolkits, application conversions and available eco-systems
 
 Users and OEM vendors alike have the possibility, depending on their use-cases,
@@ -239,6 +245,11 @@ capable of loading up libweston modules and make use of them. And just like
 weston, the AGL compositor loads up the remoting-plugin to achieve the same
 thing.
 
+The remoting-plugin uses the DRM virtual output API from libweston together
+with gstreamer pipeline to capture, using DMA buffers, the DRM output and to
+stream it, remotely to another machine. They can be over the network, or
+locally.
+
 Further more, to cope with situations where the output is just a
 panel/display, without some kind of compositor driving it, the necessity of
 handling input events is an important feature to have, giving the user to