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compositor: Add support for direct scanout of Wayland surfaces

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Try to bypass compositing if there is a fullscreen toplevel window with
a buffer compatible with the primary plane of the monitor it is
fullscreen on. Only non-mirrored is currently supported; as well as
fullscreened on a single monitor. It should be possible to extend with
more cases, but this starts small.

It does this by introducing a new MetaCompositor sub type
MetaCompositorNative specific to the native backend, which derives from
MetaCompositorServer, containing functionality only relevant for when
running on top of the native backend.

https://gitlab.gnome.org/GNOME/mutter/merge_requests/798
This commit is contained in:
Jonas Ådahl
2019-09-12 22:07:20 +02:00
parent b51c468c0f
commit 65a6c4c361
9 changed files with 241 additions and 23 deletions
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15
src/core/display.c
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@ -51,6 +51,7 @@
#include "backends/x11/meta-backend-x11.h"
#include "backends/x11/meta-event-x11.h"
#include "backends/x11/cm/meta-backend-x11-cm.h"
#include "backends/x11/nested/meta-backend-x11-nested.h"
#include "clutter/x11/clutter-x11.h"
#include "compositor/compositor-private.h"
#include "compositor/meta-compositor-x11.h"
@ -81,6 +82,7 @@
#include "x11/xprops.h"
#ifdef HAVE_WAYLAND
#include "compositor/meta-compositor-native.h"
#include "compositor/meta-compositor-server.h"
#include "wayland/meta-xwayland-private.h"
#include "wayland/meta-wayland-tablet-seat.h"
@ -572,11 +574,16 @@ static MetaCompositor *
create_compositor (MetaDisplay *display)
{
#ifdef HAVE_WAYLAND
if (meta_is_wayland_compositor ())
return META_COMPOSITOR (meta_compositor_server_new (display));
else
MetaBackend *backend = meta_get_backend ();
#ifdef HAVE_NATIVE_BACKEND
if (META_IS_BACKEND_NATIVE (backend))
return META_COMPOSITOR (meta_compositor_native_new (display));
#endif
return META_COMPOSITOR (meta_compositor_x11_new (display));
if (META_IS_BACKEND_X11_NESTED (backend))
return META_COMPOSITOR (meta_compositor_server_new (display));
#endif
return META_COMPOSITOR (meta_compositor_x11_new (display));
}
static void