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mutter-performance-source/src/backends/native/meta-backend-native.c

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/* -*- 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>
*/
#include "config.h"
#include "meta-backend-native.h"
#include "meta-backend-native-private.h"
#include <meta/main.h>
#include <clutter/evdev/clutter-evdev.h>
#include <libupower-glib/upower.h>
#include "meta-barrier-native.h"
#include "meta-idle-monitor-native.h"
#include "meta-monitor-manager-kms.h"
#include "meta-cursor-renderer-native.h"
#include "meta-launcher.h"
#include "backends/meta-cursor-tracker-private.h"
#include "backends/meta-logical-monitor.h"
#include "backends/meta-monitor-manager-private.h"
#include "backends/meta-pointer-constraint.h"
#include "backends/meta-stage.h"
#include "backends/native/meta-clutter-backend-native.h"
#include "backends/native/meta-renderer-native.h"
#include "backends/native/meta-stage-native.h"
#include <stdlib.h>
struct _MetaBackendNative
{
MetaBackend parent;
};
struct _MetaBackendNativePrivate
{
MetaLauncher *launcher;
MetaBarrierManagerNative *barrier_manager;
UpClient *up_client;
guint sleep_signal_id;
GCancellable *cancellable;
GDBusConnection *system_bus;
};
typedef struct _MetaBackendNativePrivate MetaBackendNativePrivate;
G_DEFINE_TYPE_WITH_PRIVATE (MetaBackendNative, meta_backend_native, META_TYPE_BACKEND);
static void
meta_backend_native_finalize (GObject *object)
{
MetaBackendNative *native = META_BACKEND_NATIVE (object);
MetaBackendNativePrivate *priv = meta_backend_native_get_instance_private (native);
meta_launcher_free (priv->launcher);
g_object_unref (priv->up_client);
if (priv->sleep_signal_id)
g_dbus_connection_signal_unsubscribe (priv->system_bus, priv->sleep_signal_id);
g_cancellable_cancel (priv->cancellable);
g_clear_object (&priv->cancellable);
g_clear_object (&priv->system_bus);
G_OBJECT_CLASS (meta_backend_native_parent_class)->finalize (object);
}
static void
prepare_for_sleep_cb (GDBusConnection *connection,
const gchar *sender_name,
const gchar *object_path,
const gchar *interface_name,
const gchar *signal_name,
GVariant *parameters,
gpointer user_data)
{
gboolean suspending;
g_variant_get (parameters, "(b)", &suspending);
if (suspending)
return;
meta_idle_monitor_native_reset_idletime (meta_idle_monitor_get_core ());
}
static void
system_bus_gotten_cb (GObject *object,
GAsyncResult *res,
gpointer user_data)
{
MetaBackendNativePrivate *priv;
GDBusConnection *bus;
bus = g_bus_get_finish (res, NULL);
if (!bus)
return;
priv = meta_backend_native_get_instance_private (META_BACKEND_NATIVE (user_data));
priv->system_bus = bus;
priv->sleep_signal_id = g_dbus_connection_signal_subscribe (priv->system_bus,
"org.freedesktop.login1",
"org.freedesktop.login1.Manager",
"PrepareForSleep",
"/org/freedesktop/login1",
NULL,
G_DBUS_SIGNAL_FLAGS_NONE,
prepare_for_sleep_cb,
NULL,
NULL);
}
static void
lid_is_closed_changed_cb (UpClient *client,
GParamSpec *pspec,
gpointer user_data)
{
if (up_client_get_lid_is_closed (client))
return;
meta_idle_monitor_native_reset_idletime (meta_idle_monitor_get_core ());
}
static void
constrain_to_barriers (ClutterInputDevice *device,
guint32 time,
float *new_x,
float *new_y)
{
MetaBackendNative *native = META_BACKEND_NATIVE (meta_get_backend ());
MetaBackendNativePrivate *priv =
meta_backend_native_get_instance_private (native);
meta_barrier_manager_native_process (priv->barrier_manager,
device,
time,
new_x, new_y);
}
static void
constrain_to_client_constraint (ClutterInputDevice *device,
guint32 time,
float prev_x,
float prev_y,
float *x,
float *y)
{
MetaBackend *backend = meta_get_backend ();
MetaPointerConstraint *constraint =
meta_backend_get_client_pointer_constraint (backend);
if (!constraint)
return;
meta_pointer_constraint_constrain (constraint, device,
time, prev_x, prev_y, x, y);
}
/*
* The pointer constrain code is mostly a rip-off of the XRandR code from Xorg.
* (from xserver/randr/rrcrtc.c, RRConstrainCursorHarder)
*
* Copyright © 2006 Keith Packard
* Copyright 2010 Red Hat, Inc
*
*/
static void
constrain_all_screen_monitors (ClutterInputDevice *device,
MetaMonitorManager *monitor_manager,
float *x,
float *y)
{
ClutterPoint current;
float cx, cy;
GList *logical_monitors, *l;
clutter_input_device_get_coords (device, NULL, &current);
cx = current.x;
cy = current.y;
/* if we're trying to escape, clamp to the CRTC we're coming from */
logical_monitors =
meta_monitor_manager_get_logical_monitors (monitor_manager);
for (l = logical_monitors; l; l = l->next)
{
MetaLogicalMonitor *logical_monitor = l->data;
int left, right, top, bottom;
left = logical_monitor->rect.x;
right = left + logical_monitor->rect.width;
top = logical_monitor->rect.y;
bottom = top + logical_monitor->rect.height;
if ((cx >= left) && (cx < right) && (cy >= top) && (cy < bottom))
{
if (*x < left)
*x = left;
if (*x >= right)
*x = right - 1;
if (*y < top)
*y = top;
if (*y >= bottom)
*y = bottom - 1;
return;
}
}
}
static void
pointer_constrain_callback (ClutterInputDevice *device,
guint32 time,
float prev_x,
float prev_y,
float *new_x,
float *new_y,
gpointer user_data)
{
MetaBackend *backend = meta_get_backend ();
MetaMonitorManager *monitor_manager =
meta_backend_get_monitor_manager (backend);
/* Constrain to barriers */
constrain_to_barriers (device, time, new_x, new_y);
/* Constrain to pointer lock */
constrain_to_client_constraint (device, time, prev_x, prev_y, new_x, new_y);
/* if we're moving inside a monitor, we're fine */
if (meta_monitor_manager_get_logical_monitor_at (monitor_manager,
*new_x, *new_y))
return;
/* if we're trying to escape, clamp to the CRTC we're coming from */
constrain_all_screen_monitors (device, monitor_manager, new_x, new_y);
}
static ClutterBackend *
meta_backend_native_create_clutter_backend (MetaBackend *backend)
{
return g_object_new (META_TYPE_CLUTTER_BACKEND_NATIVE, NULL);
}
static void
meta_backend_native_post_init (MetaBackend *backend)
{
ClutterDeviceManager *manager = clutter_device_manager_get_default ();
META_BACKEND_CLASS (meta_backend_native_parent_class)->post_init (backend);
clutter_evdev_set_pointer_constrain_callback (manager, pointer_constrain_callback,
NULL, NULL);
}
static MetaIdleMonitor *
meta_backend_native_create_idle_monitor (MetaBackend *backend,
int device_id)
{
return g_object_new (META_TYPE_IDLE_MONITOR_NATIVE,
"device-id", device_id,
NULL);
}
static MetaMonitorManager *
meta_backend_native_create_monitor_manager (MetaBackend *backend)
{
return g_object_new (META_TYPE_MONITOR_MANAGER_KMS, NULL);
}
static MetaCursorRenderer *
meta_backend_native_create_cursor_renderer (MetaBackend *backend)
{
return g_object_new (META_TYPE_CURSOR_RENDERER_NATIVE, NULL);
}
static MetaRenderer *
meta_backend_native_create_renderer (MetaBackend *backend)
{
MetaBackendNative *native = META_BACKEND_NATIVE (backend);
MetaBackendNativePrivate *priv =
meta_backend_native_get_instance_private (native);
int kms_fd;
const char *kms_file_path;
GError *error = NULL;
MetaRendererNative *renderer_native;
kms_fd = meta_launcher_get_kms_fd (priv->launcher);
kms_file_path = meta_launcher_get_kms_file_path (priv->launcher);
renderer_native = meta_renderer_native_new (kms_fd, kms_file_path, &error);
if (!renderer_native)
{
meta_warning ("Failed to create renderer: %s\n", error->message);
g_error_free (error);
return NULL;
}
return META_RENDERER (renderer_native);
}
static void
meta_backend_native_warp_pointer (MetaBackend *backend,
int x,
int y)
{
ClutterDeviceManager *manager = clutter_device_manager_get_default ();
ClutterInputDevice *device = clutter_device_manager_get_core_device (manager, CLUTTER_POINTER_DEVICE);
MetaCursorTracker *cursor_tracker = meta_backend_get_cursor_tracker (backend);
/* XXX */
guint32 time_ = 0;
/* Warp the input device pointer state. */
clutter_evdev_warp_pointer (device, time_, x, y);
/* Warp displayed pointer cursor. */
meta_cursor_tracker_update_position (cursor_tracker, x, y);
}
static MetaLogicalMonitor *
meta_backend_native_get_current_logical_monitor (MetaBackend *backend)
{
MetaCursorTracker *cursor_tracker = meta_backend_get_cursor_tracker (backend);
MetaMonitorManager *monitor_manager =
meta_backend_get_monitor_manager (backend);
int x, y;
meta_cursor_tracker_get_pointer (cursor_tracker, &x, &y, NULL);
return meta_monitor_manager_get_logical_monitor_at (monitor_manager, x, y);
}
static void
meta_backend_native_set_keymap (MetaBackend *backend,
const char *layouts,
const char *variants,
const char *options)
{
ClutterDeviceManager *manager = clutter_device_manager_get_default ();
struct xkb_rule_names names;
struct xkb_keymap *keymap;
struct xkb_context *context;
names.rules = DEFAULT_XKB_RULES_FILE;
names.model = DEFAULT_XKB_MODEL;
names.layout = layouts;
names.variant = variants;
names.options = options;
context = xkb_context_new (XKB_CONTEXT_NO_FLAGS);
keymap = xkb_keymap_new_from_names (context, &names, XKB_KEYMAP_COMPILE_NO_FLAGS);
xkb_context_unref (context);
clutter_evdev_set_keyboard_map (manager, keymap);
g_signal_emit_by_name (backend, "keymap-changed", 0);
xkb_keymap_unref (keymap);
}
static struct xkb_keymap *
meta_backend_native_get_keymap (MetaBackend *backend)
{
ClutterDeviceManager *manager = clutter_device_manager_get_default ();
return clutter_evdev_get_keyboard_map (manager);
}
static void
meta_backend_native_lock_layout_group (MetaBackend *backend,
guint idx)
{
ClutterDeviceManager *manager = clutter_device_manager_get_default ();
clutter_evdev_set_keyboard_layout_index (manager, idx);
g_signal_emit_by_name (backend, "keymap-layout-group-changed", idx, 0);
}
static void
meta_backend_native_set_numlock (MetaBackend *backend,
gboolean numlock_state)
{
ClutterDeviceManager *manager = clutter_device_manager_get_default ();
clutter_evdev_set_keyboard_numlock (manager, numlock_state);
}
static gboolean
meta_backend_native_get_relative_motion_deltas (MetaBackend *backend,
const ClutterEvent *event,
double *dx,
double *dy,
double *dx_unaccel,
double *dy_unaccel)
{
return clutter_evdev_event_get_relative_motion (event,
dx, dy,
dx_unaccel, dy_unaccel);
}
static void
meta_backend_native_update_screen_size (MetaBackend *backend,
int width, int height)
{
ClutterBackend *clutter_backend = meta_backend_get_clutter_backend (backend);
MetaStageNative *stage_native;
ClutterActor *stage = meta_backend_get_stage (backend);
stage_native = meta_clutter_backend_native_get_stage_native (clutter_backend);
if (meta_is_stage_views_enabled ())
meta_stage_native_rebuild_views (stage_native);
else
meta_stage_native_legacy_set_size (stage_native, width, height);
clutter_actor_set_size (stage, width, height);
}
static void
meta_backend_native_class_init (MetaBackendNativeClass *klass)
{
MetaBackendClass *backend_class = META_BACKEND_CLASS (klass);
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->finalize = meta_backend_native_finalize;
backend_class->create_clutter_backend = meta_backend_native_create_clutter_backend;
backend_class->post_init = meta_backend_native_post_init;
backend_class->create_idle_monitor = meta_backend_native_create_idle_monitor;
backend_class->create_monitor_manager = meta_backend_native_create_monitor_manager;
backend_class->create_cursor_renderer = meta_backend_native_create_cursor_renderer;
backend_class->create_renderer = meta_backend_native_create_renderer;
backend_class->warp_pointer = meta_backend_native_warp_pointer;
backend_class->get_current_logical_monitor = meta_backend_native_get_current_logical_monitor;
backend_class->set_keymap = meta_backend_native_set_keymap;
backend_class->get_keymap = meta_backend_native_get_keymap;
backend_class->lock_layout_group = meta_backend_native_lock_layout_group;
backend_class->get_relative_motion_deltas = meta_backend_native_get_relative_motion_deltas;
backend_class->update_screen_size = meta_backend_native_update_screen_size;
backend_class->set_numlock = meta_backend_native_set_numlock;
}
static void
meta_backend_native_init (MetaBackendNative *native)
{
MetaBackendNativePrivate *priv = meta_backend_native_get_instance_private (native);
GError *error = NULL;
priv->launcher = meta_launcher_new (&error);
if (priv->launcher == NULL)
{
g_warning ("Can't initialize KMS backend: %s\n", error->message);
exit (1);
}
priv->barrier_manager = meta_barrier_manager_native_new ();
priv->up_client = up_client_new ();
g_signal_connect (priv->up_client, "notify::lid-is-closed",
G_CALLBACK (lid_is_closed_changed_cb), NULL);
priv->cancellable = g_cancellable_new ();
g_bus_get (G_BUS_TYPE_SYSTEM,
priv->cancellable,
system_bus_gotten_cb,
native);
}
gboolean
meta_activate_vt (int vt, GError **error)
{
MetaBackend *backend = meta_get_backend ();
MetaBackendNative *native = META_BACKEND_NATIVE (backend);
MetaBackendNativePrivate *priv = meta_backend_native_get_instance_private (native);
return meta_launcher_activate_vt (priv->launcher, vt, error);
}
MetaBarrierManagerNative *
meta_backend_native_get_barrier_manager (MetaBackendNative *native)
{
MetaBackendNativePrivate *priv =
meta_backend_native_get_instance_private (native);
return priv->barrier_manager;
}
/**
* meta_activate_session:
*
* Tells mutter to activate the session. When mutter is a
* display server, this tells logind to switch over to
* the new session.
*/
gboolean
meta_activate_session (void)
{
GError *error = NULL;
MetaBackend *backend = meta_get_backend ();
/* Do nothing. */
if (!META_IS_BACKEND_NATIVE (backend))
return TRUE;
MetaBackendNative *native = META_BACKEND_NATIVE (backend);
MetaBackendNativePrivate *priv = meta_backend_native_get_instance_private (native);
if (!meta_launcher_activate_session (priv->launcher, &error))
{
g_warning ("Could not activate session: %s\n", error->message);
g_error_free (error);
return FALSE;
}
return TRUE;
}
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