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wayland/surface: Add support for wp_viewporter

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This adds the required bits to wayland surfaces and ties them up
to the compositor parts.

It is based on and very similar in nature to buffer transforms.

From the specification:
> The global interface exposing surface cropping and scaling
> capabilities is used to instantiate an interface extension for a
> wl_surface object. This extended interface will then allow cropping
> and scaling the surface contents, effectively disconnecting the
> direct relationship between the buffer and the surface size.

https://gitlab.gnome.org/GNOME/mutter/merge_requests/323
This commit is contained in:
Robert Mader
2018-11-24 20:25:38 +01:00
committed by Jonas Ådahl
parent edfe5cc3b7
commit ba7af4f7d3
7 changed files with 407 additions and 20 deletions
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21
src/wayland/meta-wayland-actor-surface.c
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@ -207,6 +207,27 @@ meta_wayland_actor_surface_real_sync_actor_state (MetaWaylandActorSurface *actor
meta_surface_actor_set_transform (surface_actor, surface->buffer_transform);
if (surface->viewport.has_src_rect)
{
meta_surface_actor_set_viewport_src_rect (surface_actor,
&surface->viewport.src_rect);
}
else
{
meta_surface_actor_reset_viewport_src_rect (surface_actor);
}
if (surface->viewport.has_dst_size)
{
meta_surface_actor_set_viewport_dst_size (surface_actor,
surface->viewport.dst_width,
surface->viewport.dst_height);
}
else
{
meta_surface_actor_reset_viewport_dst_size (surface_actor);
}
for (l = surface->subsurfaces; l; l = l->next)
{
MetaWaylandSurface *subsurface_surface = l->data;