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mutter-performance-source/src/compositor/meta-compositor-native.c
Jonas Ådahl 25f9406e69 compositor: Get the stage via the backend
We would get the MetaDisplay from the backend singleton before creating
the MetaCompositor, then in MetaCompositor, get the backend singleton
again to get the stage. To get rid of the extra singleton fetching, just
pass the backend the MetaCompositor constructors, and fetch the stage
directly from the backend everytime it's needed.

This also makes it available earlier than before, as we didn't set our
instance private stage pointer until the manage() call.

https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1289
2020-06-05 21:39:27 +00:00

150 lines
4.2 KiB
C

/*
* Copyright (C) 2019 Red Hat Inc.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
* 02111-1307, USA.
*
*/
#include "config.h"
#include "compositor/meta-compositor-native.h"
#include "backends/meta-logical-monitor.h"
#include "compositor/meta-surface-actor-wayland.h"
struct _MetaCompositorNative
{
MetaCompositorServer parent;
};
G_DEFINE_TYPE (MetaCompositorNative, meta_compositor_native,
META_TYPE_COMPOSITOR_SERVER)
static MetaRendererView *
get_window_view (MetaRenderer *renderer,
MetaWindow *window)
{
GList *l;
MetaRendererView *view_found = NULL;
for (l = meta_renderer_get_views (renderer); l; l = l->next)
{
ClutterStageView *stage_view = l->data;
MetaRectangle view_layout;
clutter_stage_view_get_layout (stage_view, &view_layout);
if (meta_rectangle_equal (&window->buffer_rect,
&view_layout))
{
if (view_found)
return NULL;
view_found = META_RENDERER_VIEW (stage_view);
}
}
return view_found;
}
static void
maybe_assign_primary_plane (MetaCompositor *compositor)
{
MetaBackend *backend = meta_get_backend ();
MetaRenderer *renderer = meta_backend_get_renderer (backend);
MetaWindowActor *window_actor;
MetaWindow *window;
MetaRendererView *view;
CoglFramebuffer *framebuffer;
CoglOnscreen *onscreen;
MetaSurfaceActor *surface_actor;
MetaSurfaceActorWayland *surface_actor_wayland;
g_autoptr (CoglScanout) scanout = NULL;
if (meta_compositor_is_unredirect_inhibited (compositor))
return;
window_actor = meta_compositor_get_top_window_actor (compositor);
if (!window_actor)
return;
if (meta_window_actor_effect_in_progress (window_actor))
return;
if (clutter_actor_has_transitions (CLUTTER_ACTOR (window_actor)))
return;
if (clutter_actor_get_n_children (CLUTTER_ACTOR (window_actor)) != 1)
return;
window = meta_window_actor_get_meta_window (window_actor);
if (!window)
return;
view = get_window_view (renderer, window);
if (!view)
return;
framebuffer = clutter_stage_view_get_framebuffer (CLUTTER_STAGE_VIEW (view));
if (!cogl_is_onscreen (framebuffer))
return;
surface_actor = meta_window_actor_get_surface (window_actor);
if (!META_IS_SURFACE_ACTOR_WAYLAND (surface_actor))
return;
surface_actor_wayland = META_SURFACE_ACTOR_WAYLAND (surface_actor);
onscreen = COGL_ONSCREEN (framebuffer);
scanout = meta_surface_actor_wayland_try_acquire_scanout (surface_actor_wayland,
onscreen);
if (!scanout)
return;
clutter_stage_view_assign_next_scanout (CLUTTER_STAGE_VIEW (view), scanout);
}
static void
meta_compositor_native_pre_paint (MetaCompositor *compositor)
{
MetaCompositorClass *parent_class;
maybe_assign_primary_plane (compositor);
parent_class = META_COMPOSITOR_CLASS (meta_compositor_native_parent_class);
parent_class->pre_paint (compositor);
}
MetaCompositorNative *
meta_compositor_native_new (MetaDisplay *display,
MetaBackend *backend)
{
return g_object_new (META_TYPE_COMPOSITOR_NATIVE,
"display", display,
"backend", backend,
NULL);
}
static void
meta_compositor_native_init (MetaCompositorNative *compositor_native)
{
}
static void
meta_compositor_native_class_init (MetaCompositorNativeClass *klass)
{
MetaCompositorClass *compositor_class = META_COMPOSITOR_CLASS (klass);
compositor_class->pre_paint = meta_compositor_native_pre_paint;
}