[PATCH v2] protocol: prefer wl_surface.damage_buffer
ppaalanen at gmail.com
Mon Nov 5 14:17:17 UTC 2018
On Mon, 05 Nov 2018 13:57:00 +0000
Simon Ser <contact at emersion.fr> wrote:
> This commit makes wl_surface.damage_buffer preferred over wl_surface.damage.
> wl_surface.damage can be implemented in a non-optimal way by the compositor
> (e.g. by always damaging the whole buffer).
> Having two requests makes it complicated for the compositor to handle damage,
> making it necessary to transform one into the other's coordinates.
> Moreover, integration with wp_viewporter is tricky.
> Signed-off-by: Simon Ser <contact at emersion.fr>
> protocol/wayland.xml | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
> diff --git a/protocol/wayland.xml b/protocol/wayland.xml
> index 141038b..df2b6d2 100644
> --- a/protocol/wayland.xml
> +++ b/protocol/wayland.xml
> @@ -1397,9 +1397,9 @@
> and clears pending damage. The server will clear the current
> damage as it repaints the surface.
> - Alternatively, damage can be posted with wl_surface.damage_buffer
> - which uses buffer coordinates instead of surface coordinates,
> - and is probably the preferred and intuitive way of doing this.
> + Note! New clients should not use this request. Instead damage can be
> + posted with wl_surface.damage_buffer which uses buffer coordinates
> + instead of surface coordinates.
> <arg name="x" type="int" summary="surface-local x coordinate"/>
> <arg name="y" type="int" summary="surface-local y coordinate"/>
Acked-by: Pekka Paalanen <pekka.paalanen at collabora.co.uk>
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