libweston: Replace weston_output_damage() with a flag

In the future we'd like to have multiple overlapping outputs.

weston_output_damage() currently adds damage to the output's coordinates
on the primary plane. This plane is shared between all outputs, so it
would result in damaging more than the intended output.

Eventually, plane damage will go away and be replaced by paint node damage,
and damaging the entire output would involve adding damage to a list of
paint nodes.

Instead, use a flag to indicate the output must be fully redrawn, and add
the damage during the repaint loop.

Signed-off-by: Derek Foreman <derek.foreman@collabora.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/include/libweston/libweston.h b/include/libweston/libweston.h
index 2985a99f..150c9001 100644
--- a/include/libweston/libweston.h
+++ b/include/libweston/libweston.h
@@ -484,6 +484,9 @@ struct weston_output {
 	 *  if set, a repaint will eventually occur. */
 	bool repaint_needed;
 
+	/** True if the entire contents of the output should be redrawn */
+	bool full_repaint_needed;
+
 	/** Used only between repaint_begin and repaint_cancel. */
 	bool repainted;