47002bf0cd
Currently a buffer use count always reaches zero before it is replaced. This is due to the fact that at the point a new buffer is attached, the last potential user releases it (the stage) since the currently displayed frame has a composited copy of the buffer. This may however change, if a buffer is scanned out directly, meaning it should not be released until the page flip callback is invoked. Prepare for this by making the buffer reference a heap allocated struct, enabling us to keep a pointer to it longer than the buffer is attached. https://gitlab.gnome.org/GNOME/mutter/merge_requests/798
411 lines
14 KiB
C
411 lines
14 KiB
C
/*
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* Copyright (C) 2012,2013 Intel Corporation
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* Copyright (C) 2013-2017 Red Hat, Inc.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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* 02111-1307, USA.
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*
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*/
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#include "config.h"
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#include "wayland/meta-wayland-shell-surface.h"
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#include "compositor/meta-surface-actor-wayland.h"
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#include "compositor/meta-window-actor-private.h"
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#include "compositor/meta-window-actor-wayland.h"
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#include "wayland/meta-wayland-actor-surface.h"
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#include "wayland/meta-wayland-buffer.h"
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#include "wayland/meta-wayland-subsurface.h"
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#include "wayland/meta-wayland-surface.h"
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#include "wayland/meta-window-wayland.h"
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typedef struct _MetaWaylandShellSurfacePrivate
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{
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MetaWindow *window;
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gulong unmanaging_handler_id;
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gulong position_changed_handler_id;
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gulong effects_completed_handler_id;
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} MetaWaylandShellSurfacePrivate;
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G_DEFINE_ABSTRACT_TYPE_WITH_PRIVATE (MetaWaylandShellSurface,
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meta_wayland_shell_surface,
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META_TYPE_WAYLAND_ACTOR_SURFACE)
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void
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meta_wayland_shell_surface_calculate_geometry (MetaWaylandShellSurface *shell_surface,
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MetaRectangle *out_geometry)
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{
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MetaWaylandSurfaceRole *surface_role =
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META_WAYLAND_SURFACE_ROLE (shell_surface);
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MetaWaylandSurface *surface =
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meta_wayland_surface_role_get_surface (surface_role);
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MetaRectangle geometry;
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MetaWaylandSurface *subsurface_surface;
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geometry = (MetaRectangle) {
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.width = meta_wayland_surface_get_width (surface),
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.height = meta_wayland_surface_get_height (surface),
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};
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META_WAYLAND_SURFACE_FOREACH_SUBSURFACE (surface, subsurface_surface)
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{
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MetaWaylandSubsurface *subsurface;
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subsurface = META_WAYLAND_SUBSURFACE (subsurface_surface->role);
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meta_wayland_subsurface_union_geometry (subsurface,
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0, 0,
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&geometry);
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}
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*out_geometry = geometry;
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}
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void
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meta_wayland_shell_surface_determine_geometry (MetaWaylandShellSurface *shell_surface,
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MetaRectangle *set_geometry,
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MetaRectangle *out_geometry)
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{
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MetaRectangle bounding_geometry = { 0 };
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MetaRectangle intersected_geometry = { 0 };
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meta_wayland_shell_surface_calculate_geometry (shell_surface,
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&bounding_geometry);
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meta_rectangle_intersect (set_geometry, &bounding_geometry,
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&intersected_geometry);
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*out_geometry = intersected_geometry;
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}
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static void
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clear_window (MetaWaylandShellSurface *shell_surface)
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{
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MetaWaylandShellSurfacePrivate *priv =
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meta_wayland_shell_surface_get_instance_private (shell_surface);
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MetaWaylandSurfaceRole *surface_role =
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META_WAYLAND_SURFACE_ROLE (shell_surface);
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MetaWaylandSurface *surface =
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meta_wayland_surface_role_get_surface (surface_role);
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MetaSurfaceActor *surface_actor;
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if (!priv->window)
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return;
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g_clear_signal_handler (&priv->unmanaging_handler_id,
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priv->window);
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g_clear_signal_handler (&priv->position_changed_handler_id,
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priv->window);
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g_clear_signal_handler (&priv->effects_completed_handler_id,
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meta_window_actor_from_window (priv->window));
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priv->window = NULL;
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surface_actor = meta_wayland_surface_get_actor (surface);
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if (surface_actor)
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clutter_actor_set_reactive (CLUTTER_ACTOR (surface_actor), FALSE);
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meta_wayland_surface_notify_unmapped (surface);
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}
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static void
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window_unmanaging (MetaWindow *window,
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MetaWaylandShellSurface *shell_surface)
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{
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clear_window (shell_surface);
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}
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static void
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window_position_changed (MetaWindow *window,
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MetaWaylandSurface *surface)
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{
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meta_wayland_surface_update_outputs_recursively (surface);
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}
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static void
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window_actor_effects_completed (MetaWindowActor *window_actor,
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MetaWaylandSurface *surface)
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{
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meta_wayland_surface_update_outputs_recursively (surface);
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meta_wayland_compositor_repick (surface->compositor);
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}
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void
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meta_wayland_shell_surface_set_window (MetaWaylandShellSurface *shell_surface,
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MetaWindow *window)
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{
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MetaWaylandShellSurfacePrivate *priv =
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meta_wayland_shell_surface_get_instance_private (shell_surface);
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MetaWaylandSurfaceRole *surface_role =
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META_WAYLAND_SURFACE_ROLE (shell_surface);
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MetaWaylandSurface *surface =
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meta_wayland_surface_role_get_surface (surface_role);
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MetaSurfaceActor *surface_actor;
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g_assert (!priv->window);
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priv->window = window;
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surface_actor = meta_wayland_surface_get_actor (surface);
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if (surface_actor)
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clutter_actor_set_reactive (CLUTTER_ACTOR (surface_actor), TRUE);
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priv->unmanaging_handler_id =
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g_signal_connect (window,
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"unmanaging",
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G_CALLBACK (window_unmanaging),
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shell_surface);
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priv->position_changed_handler_id =
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g_signal_connect (window,
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"position-changed",
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G_CALLBACK (window_position_changed),
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surface);
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priv->effects_completed_handler_id =
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g_signal_connect (meta_window_actor_from_window (window),
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"effects-completed",
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G_CALLBACK (window_actor_effects_completed),
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surface);
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meta_window_update_monitor (window, META_WINDOW_UPDATE_MONITOR_FLAGS_NONE);
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}
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void
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meta_wayland_shell_surface_configure (MetaWaylandShellSurface *shell_surface,
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MetaWaylandWindowConfiguration *configuration)
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{
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MetaWaylandShellSurfaceClass *shell_surface_class =
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META_WAYLAND_SHELL_SURFACE_GET_CLASS (shell_surface);
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shell_surface_class->configure (shell_surface, configuration);
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}
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void
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meta_wayland_shell_surface_ping (MetaWaylandShellSurface *shell_surface,
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uint32_t serial)
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{
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MetaWaylandShellSurfaceClass *shell_surface_class =
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META_WAYLAND_SHELL_SURFACE_GET_CLASS (shell_surface);
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shell_surface_class->ping (shell_surface, serial);
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}
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void
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meta_wayland_shell_surface_close (MetaWaylandShellSurface *shell_surface)
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{
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MetaWaylandShellSurfaceClass *shell_surface_class =
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META_WAYLAND_SHELL_SURFACE_GET_CLASS (shell_surface);
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shell_surface_class->close (shell_surface);
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}
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void
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meta_wayland_shell_surface_managed (MetaWaylandShellSurface *shell_surface,
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MetaWindow *window)
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{
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MetaWaylandShellSurfaceClass *shell_surface_class =
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META_WAYLAND_SHELL_SURFACE_GET_CLASS (shell_surface);
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shell_surface_class->managed (shell_surface, window);
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}
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static void
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meta_wayland_shell_surface_assigned (MetaWaylandSurfaceRole *surface_role)
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{
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MetaWaylandSurfaceRoleClass *surface_role_class =
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META_WAYLAND_SURFACE_ROLE_CLASS (meta_wayland_shell_surface_parent_class);
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MetaWaylandSurface *surface =
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meta_wayland_surface_role_get_surface (surface_role);
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surface->dnd.funcs = meta_wayland_data_device_get_drag_dest_funcs ();
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surface_role_class->assigned (surface_role);
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}
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static void
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meta_wayland_shell_surface_surface_pre_apply_state (MetaWaylandSurfaceRole *surface_role,
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MetaWaylandSurfaceState *pending)
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{
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MetaWaylandShellSurface *shell_surface =
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META_WAYLAND_SHELL_SURFACE (surface_role);
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MetaWaylandShellSurfacePrivate *priv =
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meta_wayland_shell_surface_get_instance_private (shell_surface);
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MetaWaylandSurface *surface =
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meta_wayland_surface_role_get_surface (surface_role);
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if (pending->newly_attached &&
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!surface->buffer_ref->buffer &&
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priv->window)
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meta_window_queue (priv->window, META_QUEUE_CALC_SHOWING);
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}
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static void
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meta_wayland_shell_surface_surface_apply_state (MetaWaylandSurfaceRole *surface_role,
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MetaWaylandSurfaceState *pending)
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{
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MetaWaylandShellSurface *shell_surface =
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META_WAYLAND_SHELL_SURFACE (surface_role);
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MetaWaylandShellSurfacePrivate *priv =
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meta_wayland_shell_surface_get_instance_private (shell_surface);
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MetaWaylandActorSurface *actor_surface =
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META_WAYLAND_ACTOR_SURFACE (surface_role);
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MetaWaylandSurface *surface =
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meta_wayland_surface_role_get_surface (surface_role);
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MetaWaylandSurfaceRoleClass *surface_role_class;
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MetaWindow *window;
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MetaWaylandBuffer *buffer;
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double geometry_scale;
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surface_role_class =
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META_WAYLAND_SURFACE_ROLE_CLASS (meta_wayland_shell_surface_parent_class);
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surface_role_class->apply_state (surface_role, pending);
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buffer = surface->buffer_ref->buffer;
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if (!buffer)
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return;
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window = priv->window;
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if (!window)
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return;
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geometry_scale = meta_wayland_actor_surface_get_geometry_scale (actor_surface);
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window->buffer_rect.width =
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meta_wayland_surface_get_width (surface) * geometry_scale;
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window->buffer_rect.height =
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meta_wayland_surface_get_height (surface) * geometry_scale;
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}
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static MetaWindow *
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meta_wayland_shell_surface_get_window (MetaWaylandSurfaceRole *surface_role)
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{
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MetaWaylandShellSurface *shell_surface =
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META_WAYLAND_SHELL_SURFACE (surface_role);
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MetaWaylandShellSurfacePrivate *priv =
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meta_wayland_shell_surface_get_instance_private (shell_surface);
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return priv->window;
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}
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static void
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meta_wayland_shell_surface_notify_subsurface_state_changed (MetaWaylandSurfaceRole *surface_role)
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{
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MetaWaylandShellSurface *shell_surface =
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META_WAYLAND_SHELL_SURFACE (surface_role);
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MetaWaylandShellSurfacePrivate *priv =
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meta_wayland_shell_surface_get_instance_private (shell_surface);
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MetaWindow *window;
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MetaWindowActor *window_actor;
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window = priv->window;
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if (!window)
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return;
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window_actor = meta_window_actor_from_window (window);
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meta_window_actor_wayland_rebuild_surface_tree (window_actor);
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}
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static double
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meta_wayland_shell_surface_get_geometry_scale (MetaWaylandActorSurface *actor_surface)
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{
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MetaWaylandSurfaceRole *surface_role =
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META_WAYLAND_SURFACE_ROLE (actor_surface);
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MetaWaylandSurface *surface =
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meta_wayland_surface_role_get_surface (surface_role);
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MetaWindow *toplevel_window;
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toplevel_window = meta_wayland_surface_get_toplevel_window (surface);
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if (meta_is_stage_views_scaled () || !toplevel_window)
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return 1;
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else
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return meta_window_wayland_get_geometry_scale (toplevel_window);
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}
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static void
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meta_wayland_shell_surface_sync_actor_state (MetaWaylandActorSurface *actor_surface)
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{
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MetaWaylandSurfaceRole *surface_role =
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META_WAYLAND_SURFACE_ROLE (actor_surface);
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MetaWaylandSurface *surface =
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meta_wayland_surface_role_get_surface (surface_role);
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MetaWaylandActorSurfaceClass *actor_surface_class =
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META_WAYLAND_ACTOR_SURFACE_CLASS (meta_wayland_shell_surface_parent_class);
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MetaWindow *toplevel_window;
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toplevel_window = meta_wayland_surface_get_toplevel_window (surface);
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if (!toplevel_window)
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return;
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actor_surface_class->sync_actor_state (actor_surface);
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}
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void
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meta_wayland_shell_surface_destroy_window (MetaWaylandShellSurface *shell_surface)
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{
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MetaWaylandShellSurfacePrivate *priv =
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meta_wayland_shell_surface_get_instance_private (shell_surface);
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MetaWindow *window;
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MetaDisplay *display;
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uint32_t timestamp;
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window = priv->window;
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if (!window)
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return;
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display = meta_window_get_display (window);
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timestamp = meta_display_get_current_time_roundtrip (display);
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meta_window_unmanage (window, timestamp);
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g_assert (!priv->window);
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}
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static void
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meta_wayland_shell_surface_finalize (GObject *object)
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{
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MetaWaylandShellSurface *shell_surface = META_WAYLAND_SHELL_SURFACE (object);
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meta_wayland_shell_surface_destroy_window (shell_surface);
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G_OBJECT_CLASS (meta_wayland_shell_surface_parent_class)->finalize (object);
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}
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static void
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meta_wayland_shell_surface_init (MetaWaylandShellSurface *role)
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{
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}
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static void
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meta_wayland_shell_surface_class_init (MetaWaylandShellSurfaceClass *klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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MetaWaylandSurfaceRoleClass *surface_role_class =
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META_WAYLAND_SURFACE_ROLE_CLASS (klass);
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MetaWaylandActorSurfaceClass *actor_surface_class =
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META_WAYLAND_ACTOR_SURFACE_CLASS (klass);
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object_class->finalize = meta_wayland_shell_surface_finalize;
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surface_role_class->assigned = meta_wayland_shell_surface_assigned;
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surface_role_class->pre_apply_state =
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meta_wayland_shell_surface_surface_pre_apply_state;
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surface_role_class->apply_state =
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meta_wayland_shell_surface_surface_apply_state;
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surface_role_class->notify_subsurface_state_changed =
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meta_wayland_shell_surface_notify_subsurface_state_changed;
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surface_role_class->get_window = meta_wayland_shell_surface_get_window;
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actor_surface_class->get_geometry_scale =
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meta_wayland_shell_surface_get_geometry_scale;
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actor_surface_class->sync_actor_state =
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meta_wayland_shell_surface_sync_actor_state;
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}
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