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>
f7ddaa142a