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/*
* 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 "backends/native/meta-crtc-kms.h"
#include "compositor/meta-compositor-view-native.h"
#include "compositor/meta-surface-actor-wayland.h"
struct _MetaCompositorNative
{
MetaCompositorServer parent;
MetaWaylandSurface *current_scanout_candidate;
};
G_DEFINE_TYPE (MetaCompositorNative, meta_compositor_native,
META_TYPE_COMPOSITOR_SERVER)
#ifdef HAVE_WAYLAND
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)
{
MetaCompositorNative *compositor_native = META_COMPOSITOR_NATIVE (compositor);
MetaBackend *backend = meta_get_backend ();
MetaRenderer *renderer = meta_backend_get_renderer (backend);
MetaWindowActor *window_actor;
MetaWindow *window;
MetaRendererView *view;
MetaCrtc *crtc;
CoglFramebuffer *framebuffer;
CoglOnscreen *onscreen;
MetaSurfaceActor *surface_actor;
MetaSurfaceActorWayland *surface_actor_wayland;
MetaWaylandSurface *surface;
int geometry_scale;
MetaWaylandSurface *old_candidate =
compositor_native->current_scanout_candidate;
MetaWaylandSurface *new_candidate = NULL;
g_autoptr (CoglScanout) scanout = NULL;
if (meta_compositor_is_unredirect_inhibited (compositor))
goto done;
window_actor = meta_compositor_get_top_window_actor (compositor);
if (!window_actor)
goto done;
if (meta_window_actor_effect_in_progress (window_actor))
goto done;
if (clutter_actor_has_transitions (CLUTTER_ACTOR (window_actor)))
goto done;
window = meta_window_actor_get_meta_window (window_actor);
if (!window)
goto done;
view = get_window_view (renderer, window);
if (!view)
goto done;
crtc = meta_renderer_view_get_crtc (META_RENDERER_VIEW (view));
if (!META_IS_CRTC_KMS (crtc))
goto done;
framebuffer = clutter_stage_view_get_framebuffer (CLUTTER_STAGE_VIEW (view));
if (!COGL_IS_ONSCREEN (framebuffer))
goto done;
surface_actor = meta_window_actor_get_scanout_candidate (window_actor);
if (!surface_actor)
goto done;
surface_actor_wayland = META_SURFACE_ACTOR_WAYLAND (surface_actor);
surface = meta_surface_actor_wayland_get_surface (surface_actor_wayland);
if (!surface)
goto done;
geometry_scale = meta_window_actor_get_geometry_scale (window_actor);
if (!meta_wayland_surface_can_scanout_untransformed (surface, view,
geometry_scale))
goto done;
new_candidate = surface;
onscreen = COGL_ONSCREEN (framebuffer);
scanout = meta_surface_actor_wayland_try_acquire_scanout (surface_actor_wayland,
onscreen);
if (!scanout)
goto done;
clutter_stage_view_assign_next_scanout (CLUTTER_STAGE_VIEW (view), scanout);
done:
if (old_candidate && old_candidate != new_candidate)
{
meta_wayland_surface_set_scanout_candidate (old_candidate, NULL);
g_clear_weak_pointer (&compositor_native->current_scanout_candidate);
}
if (new_candidate)
{
meta_wayland_surface_set_scanout_candidate (surface, crtc);
g_set_weak_pointer (&compositor_native->current_scanout_candidate,
surface);
}
}
#endif /* HAVE_WAYLAND */
static void
meta_compositor_native_before_paint (MetaCompositor *compositor,
MetaCompositorView *compositor_view)
{
MetaCompositorClass *parent_class;
#ifdef HAVE_WAYLAND
maybe_assign_primary_plane (compositor);
#endif
parent_class = META_COMPOSITOR_CLASS (meta_compositor_native_parent_class);
parent_class->before_paint (compositor, compositor_view);
}
static MetaCompositorView *
meta_compositor_native_create_view (MetaCompositor *compositor,
ClutterStageView *stage_view)
{
MetaCompositorViewNative *compositor_view_native;
compositor_view_native = meta_compositor_view_native_new (stage_view);
return META_COMPOSITOR_VIEW (compositor_view_native);
}
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_finalize (GObject *object)
{
MetaCompositorNative *compositor_native = META_COMPOSITOR_NATIVE (object);
g_clear_weak_pointer (&compositor_native->current_scanout_candidate);
G_OBJECT_CLASS (meta_compositor_native_parent_class)->finalize (object);
}
static void
meta_compositor_native_init (MetaCompositorNative *compositor_native)
{
}
static void
meta_compositor_native_class_init (MetaCompositorNativeClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
MetaCompositorClass *compositor_class = META_COMPOSITOR_CLASS (klass);
object_class->finalize = meta_compositor_native_finalize;
compositor_class->before_paint = meta_compositor_native_before_paint;
compositor_class->create_view = meta_compositor_native_create_view;
}
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