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backends: Start on an initial MetaBackend object

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This isn't great so far -- all we did is put the idle monitors here
instead. We'll soon have separate backend subclasses for the two
backends.
This commit is contained in:
Jasper St. Pierre 2014-04-21 19:03:22 -04:00
parent f3ee9be4cb
commit 00ea9bf14b
7 changed files with 195 additions and 63 deletions
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1
src/Makefile.am
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@ -49,6 +49,7 @@ wayland_protocols = \
libmutter_la_SOURCES = \
backends/meta-backend.c \
backends/meta-backend.h \
backends/meta-backend-private.h \
backends/meta-cursor.c \
backends/meta-cursor.h \
backends/meta-cursor-private.h \

53
src/backends/meta-backend-private.h Normal file
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@ -0,0 +1,53 @@
/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
/*
* Copyright (C) 2014 Red Hat
*
* 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.
*
* Written by:
* Jasper St. Pierre <jstpierre@mecheye.net>
*/
#ifndef META_BACKEND_PRIVATE_H
#define META_BACKEND_PRIVATE_H
#include <glib-object.h>
#include "meta-backend.h"
#define META_TYPE_BACKEND (meta_backend_get_type ())
#define META_BACKEND(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), META_TYPE_BACKEND, MetaBackend))
#define META_BACKEND_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), META_TYPE_BACKEND, MetaBackendClass))
#define META_IS_BACKEND(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), META_TYPE_BACKEND))
#define META_IS_BACKEND_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), META_TYPE_BACKEND))
#define META_BACKEND_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), META_TYPE_BACKEND, MetaBackendClass))
struct _MetaBackend
{
GObject parent;
MetaIdleMonitor *device_monitors[256];
int device_id_max;
};
struct _MetaBackendClass
{
GObjectClass parent_class;
};
#endif /* META_BACKEND_PRIVATE_H */

115
src/backends/meta-backend.c
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@ -25,6 +25,7 @@
#include "config.h"
#include "meta-backend.h"
#include "meta-backend-private.h"
#include <meta/main.h>
#include <gdk/gdkx.h>
@ -34,6 +35,118 @@
#include "backends/native/meta-weston-launch.h"
#include <meta/util.h>
#include "backends/x11/meta-idle-monitor-xsync.h"
#include "backends/native/meta-idle-monitor-native.h"
static MetaBackend *_backend;
MetaBackend *
meta_get_backend (void)
{
return _backend;
}
G_DEFINE_TYPE (MetaBackend, meta_backend, G_TYPE_OBJECT);
static void
meta_backend_finalize (GObject *object)
{
MetaBackend *backend = META_BACKEND (object);
int i;
for (i = 0; i <= backend->device_id_max; i++)
{
if (backend->device_monitors[i])
g_object_unref (backend->device_monitors[i]);
}
G_OBJECT_CLASS (meta_backend_parent_class)->finalize (object);
}
static void
meta_backend_class_init (MetaBackendClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->finalize = meta_backend_finalize;
}
static void
meta_backend_init (MetaBackend *backend)
{
_backend = backend;
}
static GType
get_idle_monitor_type (void)
{
#if defined(CLUTTER_WINDOWING_X11)
if (clutter_check_windowing_backend (CLUTTER_WINDOWING_X11))
return META_TYPE_IDLE_MONITOR_XSYNC;
#endif
return META_TYPE_IDLE_MONITOR_NATIVE;
}
/* FIXME -- destroy device monitors at some point */
G_GNUC_UNUSED static void
destroy_device_monitor (MetaBackend *backend,
int device_id)
{
g_clear_object (&backend->device_monitors[device_id]);
if (device_id == backend->device_id_max)
backend->device_id_max--;
}
MetaIdleMonitor *
meta_backend_get_idle_monitor (MetaBackend *backend,
int device_id)
{
g_return_val_if_fail (device_id >= 0 && device_id < 256, NULL);
if (!backend->device_monitors[device_id])
{
backend->device_monitors[device_id] = g_object_new (get_idle_monitor_type (),
"device-id", device_id,
NULL);
backend->device_id_max = MAX (backend->device_id_max, device_id);
}
return backend->device_monitors[device_id];
}
void
meta_backend_x11_handle_alarm_notify (MetaBackend *backend,
XEvent *xevent)
{
int i;
for (i = 0; i <= backend->device_id_max; i++)
{
if (backend->device_monitors[i])
{
if (!META_IS_IDLE_MONITOR_XSYNC (backend->device_monitors[i]))
return;
meta_idle_monitor_xsync_handle_xevent (backend->device_monitors[i], (XSyncAlarmNotifyEvent*)xevent);
}
}
}
static GType
get_backend_type (void)
{
return META_TYPE_BACKEND;
}
static void
meta_create_backend (void)
{
/* The initializer above installs it in _backend so meta_get_backend
* is valid during initialization. */
g_object_new (get_backend_type (), NULL);
}
/* Mutter is responsible for pulling events off the X queue, so Clutter
* doesn't need (and shouldn't) run its normal event source which polls
* the X fd, but we do have to deal with dispatching events that accumulate
@ -89,6 +202,8 @@ meta_clutter_init (void)
{
GSource *source;
meta_create_backend ();
/* When running as an X11 compositor, we install our own event filter and
* pass events to Clutter explicitly, so we need to prevent Clutter from
* handling our events.

16
src/backends/meta-backend.h
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@ -27,6 +27,22 @@
#include <glib-object.h>
#include <X11/Xlib.h>
#include <meta/meta-idle-monitor.h>
typedef struct _MetaBackend MetaBackend;
typedef struct _MetaBackendClass MetaBackendClass;
GType meta_backend_get_type (void);
MetaBackend * meta_get_backend (void);
MetaIdleMonitor * meta_backend_get_idle_monitor (MetaBackend *backend,
int device_id);
void meta_backend_x11_handle_alarm_notify (MetaBackend *backend,
XEvent *event);
void meta_clutter_init (void);
gboolean meta_activate_vt (int vt, GError **error);

65
src/backends/meta-idle-monitor.c
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@ -38,8 +38,7 @@
#include <meta/meta-idle-monitor.h>
#include "meta-idle-monitor-private.h"
#include "meta-idle-monitor-dbus.h"
#include "backends/x11/meta-idle-monitor-xsync.h"
#include "backends/native/meta-idle-monitor-native.h"
#include "meta-backend.h"
G_STATIC_ASSERT(sizeof(unsigned long) == sizeof(gpointer));
@ -54,9 +53,6 @@ static GParamSpec *obj_props[PROP_LAST];
G_DEFINE_TYPE (MetaIdleMonitor, meta_idle_monitor, G_TYPE_OBJECT)
static MetaIdleMonitor *device_monitors[256];
static int device_id_max;
void
_meta_idle_monitor_watch_fire (MetaIdleMonitorWatch *watch)
{
@ -160,38 +156,6 @@ meta_idle_monitor_init (MetaIdleMonitor *monitor)
{
}
static GType
get_idle_monitor_type (void)
{
#if defined(CLUTTER_WINDOWING_X11)
if (clutter_check_windowing_backend (CLUTTER_WINDOWING_X11))
return META_TYPE_IDLE_MONITOR_XSYNC;
#endif
return META_TYPE_IDLE_MONITOR_NATIVE;
}
static void
ensure_device_monitor (int device_id)
{
if (device_monitors[device_id])
return;
device_monitors[device_id] = g_object_new (get_idle_monitor_type (),
"device-id", device_id,
NULL);
device_id_max = MAX (device_id_max, device_id);
}
/* FIXME -- destroy device monitors at some point */
G_GNUC_UNUSED static void
destroy_device_monitor (int device_id)
{
g_clear_object (&device_monitors[device_id]);
if (device_id == device_id_max)
device_id_max--;
}
/**
* meta_idle_monitor_get_core:
*
@ -202,8 +166,8 @@ destroy_device_monitor (int device_id)
MetaIdleMonitor *
meta_idle_monitor_get_core (void)
{
ensure_device_monitor (0);
return device_monitors[0];
MetaBackend *backend = meta_get_backend ();
return meta_backend_get_idle_monitor (backend, 0);
}
/**
@ -217,10 +181,8 @@ meta_idle_monitor_get_core (void)
MetaIdleMonitor *
meta_idle_monitor_get_for_device (int device_id)
{
g_return_val_if_fail (device_id > 0 && device_id < 256, NULL);
ensure_device_monitor (device_id);
return device_monitors[device_id];
MetaBackend *backend = meta_get_backend ();
return meta_backend_get_idle_monitor (backend, device_id);
}
static MetaIdleMonitorWatch *
@ -354,20 +316,3 @@ meta_idle_monitor_get_idletime (MetaIdleMonitor *monitor)
{
return META_IDLE_MONITOR_GET_CLASS (monitor)->get_idletime (monitor);
}
void
meta_idle_monitor_xsync_handle_xevent_all (XEvent *xevent)
{
int i;
for (i = 0; i <= device_id_max; i++)
{
if (device_monitors[i])
{
if (!META_IS_IDLE_MONITOR_XSYNC (device_monitors[i]))
return;
meta_idle_monitor_xsync_handle_xevent (device_monitors[i], (XSyncAlarmNotifyEvent*)xevent);
}
}
}

2
src/backends/x11/meta-idle-monitor-xsync.h
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@ -44,6 +44,4 @@ GType meta_idle_monitor_xsync_get_type (void);
void meta_idle_monitor_xsync_handle_xevent (MetaIdleMonitor *monitor,
XSyncAlarmNotifyEvent *xevent);
void meta_idle_monitor_xsync_handle_xevent_all (XEvent *xevent);
#endif /* META_IDLE_MONITOR_XSYNC_H */

6
src/core/events.c
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@ -34,6 +34,7 @@
#include "window-private.h"
#include "bell.h"
#include "workspace-private.h"
#include "backends/meta-backend.h"
#include "backends/x11/meta-idle-monitor-xsync.h"
#include "backends/native/meta-idle-monitor-native.h"
@ -1264,7 +1265,10 @@ handle_other_xevent (MetaDisplay *display,
bypass_gtk = TRUE; /* GTK doesn't want to see this really */
}
else
meta_idle_monitor_xsync_handle_xevent_all (event);
{
MetaBackend *backend = meta_get_backend ();
meta_backend_x11_handle_alarm_notify (backend, event);
}
goto out;
}