Commit 214f3125 authored by Giovanni Campagna's avatar Giovanni Campagna Committed by Giovanni Campagna
Browse files

Rework and consolidate monitor handling in MetaScreen

Consolidate all places that deal with output configuration in
MetaScreen, which gets it either from XRandR or from a dummy static configuration.
We still need to read the Xinerama config, even when running xwayland,
because we need the indices for _NET_WM_FULLSCREEN_MONITORS, but
now we do it only when needed.

https://bugzilla.gnome.org/show_bug.cgi?id=705670
parent 506ddc3d
......@@ -110,6 +110,8 @@ libmutter_la_SOURCES = \
core/keybindings.c \
core/keybindings-private.h \
core/main.c \
core/monitor.c \
core/monitor-private.h \
core/mutter-Xatomtype.h \
core/place.c \
core/place.h \
......
/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
/**
* \file screen-private.h Handling of monitor configuration
*
* Managing multiple monitors
* This file contains structures and functions that handle
* multiple monitors, including reading the current configuration
* and available hardware, and applying it.
*
* This interface is private to mutter, API users should look
* at MetaScreen instead.
*/
/*
* Copyright (C) 2001 Havoc Pennington
* Copyright (C) 2003 Rob Adams
* Copyright (C) 2004-2006 Elijah Newren
* Copyright (C) 2013 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.
*/
#ifndef META_MONITOR_PRIVATE_H
#define META_MONITOR_PRIVATE_H
#include "display-private.h"
#include <meta/screen.h>
#include "stack-tracker.h"
#include "ui.h"
#include <cogl/cogl.h>
typedef struct _MetaOutput MetaOutput;
typedef struct _MetaMonitorInfo MetaMonitorInfo;
struct _MetaOutput
{
MetaMonitorInfo *monitor;
char *name;
int width_mm;
int height_mm;
CoglSubpixelOrder subpixel_order;
};
struct _MetaMonitorInfo
{
int number;
int xinerama_index;
MetaRectangle rect;
gboolean is_primary;
gboolean in_fullscreen;
float refresh_rate;
/* The primary or first output for this crtc, 0 if we can't figure out. */
glong output_id;
};
#define META_TYPE_MONITOR_MANAGER (meta_monitor_manager_get_type ())
#define META_MONITOR_MANAGER(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), META_TYPE_MONITOR_MANAGER, MetaMonitorManager))
#define META_MONITOR_MANAGER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), META_TYPE_MONITOR_MANAGER, MetaMonitorManagerClass))
#define META_IS_MONITOR_MANAGER(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), META_TYPE_MONITOR_MANAGER))
#define META_IS_MONITOR_MANAGER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), META_TYPE_MONITOR_MANAGER))
#define META_MONITOR_MANAGER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), META_TYPE_MONITOR_MANAGER, MetaMonitorManagerClass))
typedef struct _MetaMonitorManagerClass MetaMonitorManagerClass;
typedef struct _MetaMonitorManager MetaMonitorManager;
GType meta_monitor_manager_get_type (void);
void meta_monitor_manager_initialize (Display *display);
MetaMonitorManager *meta_monitor_manager_get (void);
MetaMonitorInfo *meta_monitor_manager_get_monitor_infos (MetaMonitorManager *manager,
int *n_infos);
MetaOutput *meta_monitor_manager_get_outputs (MetaMonitorManager *manager,
int *n_outputs);
int meta_monitor_manager_get_primary_index (MetaMonitorManager *manager);
void meta_monitor_manager_invalidate (MetaMonitorManager *manager);
#endif
/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
/*
* Copyright (C) 2001, 2002 Havoc Pennington
* Copyright (C) 2002, 2003 Red Hat Inc.
* Some ICCCM manager selection code derived from fvwm2,
* Copyright (C) 2001 Dominik Vogt, Matthias Clasen, and fvwm2 team
* Copyright (C) 2003 Rob Adams
* Copyright (C) 2004-2006 Elijah Newren
* Copyright (C) 2013 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 <clutter/clutter.h>
#ifdef HAVE_RANDR
#include <X11/extensions/Xrandr.h>
#endif
#include "monitor-private.h"
struct _MetaMonitorManager
{
GObject parent_instance;
/* Outputs refers to physical screens,
while monitor_infos refer to logical ones (aka CRTC)
They can be different if two outputs are
in clone mode
*/
MetaOutput *outputs;
int primary_monitor_index;
int n_outputs;
MetaMonitorInfo *monitor_infos;
int n_monitor_infos;
#ifdef HAVE_RANDR
Display *xdisplay;
#endif
};
struct _MetaMonitorManagerClass
{
GObjectClass parent_class;
};
enum {
MONITORS_CHANGED,
SIGNALS_LAST
};
static int signals[SIGNALS_LAST];
G_DEFINE_TYPE (MetaMonitorManager, meta_monitor_manager, G_TYPE_OBJECT);
static void
make_dummy_monitor_config (MetaMonitorManager *manager)
{
manager->monitor_infos = g_new0 (MetaMonitorInfo, 1);
manager->n_monitor_infos = 1;
manager->monitor_infos[0].number = 0;
manager->monitor_infos[0].xinerama_index = 0;
manager->monitor_infos[0].rect.x = 0;
manager->monitor_infos[0].rect.y = 0;
if (manager->xdisplay)
{
Screen *screen = ScreenOfDisplay (manager->xdisplay,
DefaultScreen (manager->xdisplay));
manager->monitor_infos[0].rect.width = WidthOfScreen (screen);
manager->monitor_infos[0].rect.height = HeightOfScreen (screen);
}
else
{
manager->monitor_infos[0].rect.width = 1024;
manager->monitor_infos[0].rect.height = 768;
}
manager->monitor_infos[0].refresh_rate = 60.0f;
manager->monitor_infos[0].is_primary = TRUE;
manager->monitor_infos[0].in_fullscreen = -1;
manager->monitor_infos[0].output_id = 1;
manager->outputs = g_new0 (MetaOutput, 1);
manager->n_outputs = 1;
manager->outputs[0].monitor = &manager->monitor_infos[0];
manager->outputs[0].name = g_strdup ("LVDS");
manager->outputs[0].width_mm = 222;
manager->outputs[0].height_mm = 125;
manager->outputs[0].subpixel_order = COGL_SUBPIXEL_ORDER_UNKNOWN;
}
#ifdef HAVE_RANDR
/* In the case of multiple outputs of a single crtc (mirroring), we consider one of the
* outputs the "main". This is the one we consider "owning" the windows, so if
* the mirroring is changed to a dual monitor setup then the windows are moved to the
* crtc that now has that main output. If one of the outputs is the primary that is
* always the main, otherwise we just use the first.
*/
static void
find_main_output_for_crtc (MetaMonitorManager *manager,
XRRScreenResources *resources,
XRRCrtcInfo *crtc,
MetaMonitorInfo *info,
GArray *outputs)
{
XRROutputInfo *output;
RROutput primary_output;
int i;
primary_output = XRRGetOutputPrimary (manager->xdisplay,
DefaultRootWindow (manager->xdisplay));
for (i = 0; i < crtc->noutput; i++)
{
output = XRRGetOutputInfo (manager->xdisplay, resources, crtc->outputs[i]);
if (output->connection != RR_Disconnected)
{
MetaOutput meta_output;
meta_output.name = g_strdup (output->name);
meta_output.width_mm = output->mm_width;
meta_output.height_mm = output->mm_height;
meta_output.subpixel_order = COGL_SUBPIXEL_ORDER_UNKNOWN;
g_array_append_val (outputs, meta_output);
if (crtc->outputs[i] == primary_output)
{
info->output_id = crtc->outputs[i];
info->is_primary = TRUE;
manager->primary_monitor_index = info->number;
}
else if (info->output_id == 0)
{
info->output_id = crtc->outputs[i];
}
}
XRRFreeOutputInfo (output);
}
}
static void
read_monitor_infos_from_xrandr (MetaMonitorManager *manager)
{
XRRScreenResources *resources;
GArray *outputs;
int i, j;
resources = XRRGetScreenResourcesCurrent (manager->xdisplay,
DefaultRootWindow (manager->xdisplay));
if (!resources)
return make_dummy_monitor_config (manager);
outputs = g_array_new (FALSE, TRUE, sizeof (MetaOutput));
manager->n_outputs = 0;
manager->n_monitor_infos = resources->ncrtc;
manager->monitor_infos = g_new0 (MetaMonitorInfo, manager->n_monitor_infos);
for (i = 0; i < resources->ncrtc; i++)
{
XRRCrtcInfo *crtc;
MetaMonitorInfo *info;
crtc = XRRGetCrtcInfo (manager->xdisplay, resources, resources->crtcs[i]);
info = &manager->monitor_infos[i];
info->number = i;
info->rect.x = crtc->x;
info->rect.y = crtc->y;
info->rect.width = crtc->width;
info->rect.height = crtc->height;
info->in_fullscreen = -1;
for (j = 0; j < resources->nmode; j++)
{
if (resources->modes[j].id == crtc->mode)
info->refresh_rate = (resources->modes[j].dotClock /
((float)resources->modes[j].hTotal *
resources->modes[j].vTotal));
}
find_main_output_for_crtc (manager, resources, crtc, info, outputs);
XRRFreeCrtcInfo (crtc);
}
manager->n_outputs = outputs->len;
manager->outputs = (void*)g_array_free (outputs, FALSE);
XRRFreeScreenResources (resources);
}
#endif
/*
* meta_has_dummy_output:
*
* Returns TRUE if the only available monitor is the dummy one
* backing the ClutterStage window.
*/
static gboolean
has_dummy_output (void)
{
return FALSE;
}
static void
meta_monitor_manager_init (MetaMonitorManager *manager)
{
}
static void
read_current_config (MetaMonitorManager *manager)
{
if (has_dummy_output ())
return make_dummy_monitor_config (manager);
#ifdef HAVE_RANDR
return read_monitor_infos_from_xrandr (manager);
#endif
}
static MetaMonitorManager *
meta_monitor_manager_new (Display *display)
{
MetaMonitorManager *manager;
manager = g_object_new (META_TYPE_MONITOR_MANAGER, NULL);
manager->xdisplay = display;
read_current_config (manager);
return manager;
}
static void
free_output_array (MetaOutput *old_outputs,
int n_old_outputs)
{
int i;
for (i = 0; i < n_old_outputs; i++)
g_free (old_outputs[i].name);
g_free (old_outputs);
}
static void
meta_monitor_manager_finalize (GObject *object)
{
MetaMonitorManager *manager = META_MONITOR_MANAGER (object);
free_output_array (manager->outputs, manager->n_outputs);
g_free (manager->monitor_infos);
G_OBJECT_CLASS (meta_monitor_manager_parent_class)->finalize (object);
}
static void
meta_monitor_manager_class_init (MetaMonitorManagerClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->finalize = meta_monitor_manager_finalize;
signals[MONITORS_CHANGED] =
g_signal_new ("monitors-changed",
G_TYPE_FROM_CLASS (object_class),
G_SIGNAL_RUN_LAST,
0,
NULL, NULL, NULL,
G_TYPE_NONE, 0);
}
static MetaMonitorManager *global_manager;
void
meta_monitor_manager_initialize (Display *display)
{
global_manager = meta_monitor_manager_new (display);
}
MetaMonitorManager *
meta_monitor_manager_get (void)
{
g_assert (global_manager != NULL);
return global_manager;
}
MetaMonitorInfo *
meta_monitor_manager_get_monitor_infos (MetaMonitorManager *manager,
int *n_infos)
{
*n_infos = manager->n_monitor_infos;
return manager->monitor_infos;
}
MetaOutput *
meta_monitor_manager_get_outputs (MetaMonitorManager *manager,
int *n_outputs)
{
*n_outputs = manager->n_outputs;
return manager->outputs;
}
int
meta_monitor_manager_get_primary_index (MetaMonitorManager *manager)
{
return manager->primary_monitor_index;
}
void
meta_monitor_manager_invalidate (MetaMonitorManager *manager)
{
MetaOutput *old_outputs;
MetaMonitorInfo *old_monitor_infos;
int n_old_outputs;
/* Save the old monitor infos, so they stay valid during the update */
old_outputs = manager->outputs;
n_old_outputs = manager->n_outputs;
old_monitor_infos = manager->monitor_infos;
read_current_config (manager);
g_signal_emit (manager, signals[MONITORS_CHANGED], 0);
g_free (old_monitor_infos);
free_output_array (old_outputs, n_old_outputs);
}
......@@ -38,17 +38,7 @@
#include <X11/Xutil.h>
#include "stack-tracker.h"
#include "ui.h"
typedef struct _MetaMonitorInfo MetaMonitorInfo;
struct _MetaMonitorInfo
{
int number;
MetaRectangle rect;
gboolean is_primary;
gboolean in_fullscreen;
XID output; /* The primary or first output for this crtc, None if no xrandr */
};
#include "monitor-private.h"
typedef void (* MetaScreenWindowFunc) (MetaScreen *screen, MetaWindow *window,
gpointer user_data);
......@@ -100,10 +90,11 @@ struct _MetaScreen
Window wm_sn_selection_window;
Atom wm_sn_atom;
guint32 wm_sn_timestamp;
MetaMonitorInfo *monitor_infos;
int primary_monitor_index;
int n_monitor_infos;
int primary_monitor_index;
gboolean has_xinerama_indices;
/* Cache the current monitor */
int last_monitor_index;
......@@ -257,4 +248,9 @@ void meta_screen_workspace_switched (MetaScreen *screen,
void meta_screen_set_active_workspace_hint (MetaScreen *screen);
int meta_screen_xinerama_index_to_monitor_index (MetaScreen *screen,
int index);
int meta_screen_monitor_index_to_xinerama_index (MetaScreen *screen,
int index);
#endif
......@@ -48,10 +48,6 @@
#include <X11/extensions/Xinerama.h>
#ifdef HAVE_RANDR
#include <X11/extensions/Xrandr.h>
#endif
#include <X11/Xatom.h>
#include <locale.h>
#include <string.h>
......@@ -76,6 +72,9 @@ static void meta_screen_sn_event (SnMonitorEvent *event,
void *user_data);
#endif
static void on_monitors_changed (MetaMonitorManager *manager,
MetaScreen *screen);
enum
{
PROP_N_WORKSPACES = 1,
......@@ -350,250 +349,93 @@ set_wm_icon_size_hint (MetaScreen *screen)
#undef N_VALS
}
/* The list of monitors reported by the windowing system might include
* mirrored monitors with identical bounds. Since mirrored monitors
* shouldn't be treated as separate monitors for most purposes, we
* filter them out here. (We ignore the possibility of partially
* overlapping monitors because they are rare and it's hard to come
* up with any sensible interpretation.)
*/
static void
filter_mirrored_monitors (MetaScreen *screen)
meta_screen_ensure_xinerama_indices (MetaScreen *screen)
{
int i, j;
XineramaScreenInfo *infos;
int n_infos, i, j;
/* Currently always true and simplifies things */
g_assert (screen->primary_monitor_index == 0);
if (screen->has_xinerama_indices)
return;
screen->has_xinerama_indices = TRUE;
for (i = 1; i < screen->n_monitor_infos; i++)
if (!XineramaIsActive (screen->display->xdisplay))
return;
infos = XineramaQueryScreens (screen->display->xdisplay, &n_infos);
if (n_infos <= 0 || infos == NULL)
{
/* In case we've filtered previous monitors */
screen->monitor_infos[i].number = i;
meta_XFree (infos);
return;
}
for (j = 0; j < i; j++)
for (i = 0; i < screen->n_monitor_infos; ++i)
{
for (j = 0; j < n_infos; ++j)
{
if (meta_rectangle_equal (&screen->monitor_infos[i].rect,
&screen->monitor_infos[j].rect))
{
memmove (&screen->monitor_infos[i],
&screen->monitor_infos[i + 1],
(screen->n_monitor_infos - i - 1) * sizeof (MetaMonitorInfo));
screen->n_monitor_infos--;
i--;
continue;
}
if (screen->monitor_infos[i].rect.x == infos[j].x_org &&
screen->monitor_infos[i].rect.y == infos[j].y_org &&
screen->monitor_infos[i].rect.width == infos[j].width &&
screen->monitor_infos[i].rect.height == infos[j].height)
screen->monitor_infos[i].xinerama_index = j;
}
}
meta_XFree (infos);
}
#ifdef HAVE_RANDR
static MetaMonitorInfo *
find_monitor_with_rect (MetaScreen *screen, int x, int y, int w, int h)
int
meta_screen_monitor_index_to_xinerama_index (MetaScreen *screen,
int index)
{
MetaMonitorInfo *info;
int i;
meta_screen_ensure_xinerama_indices (screen);
for (i = 0; i < screen->n_monitor_infos; i++)
{
info = &screen->monitor_infos[i];
if (x == info->rect.x &&
y == info->rect.y &&
w == info->rect.width &&
h == info->rect.height)
return info;
}
return NULL;
return screen->monitor_infos[index].xinerama_index;
}
/* In the case of multiple outputs of a single crtc (mirroring), we consider one of the
* outputs the "main". This is the one we consider "owning" the windows, so if
* the mirroring is changed to a dual monitor setup then the windows are moved to the
* crtc that now has that main output. If one of the outputs is the primary that is
* always the main, otherwise we just use the first.
*/
static XID
find_main_output_for_crtc (MetaScreen *screen, XRRScreenResources *resources, XRRCrtcInfo *crtc)
int
meta_screen_xinerama_index_to_monitor_index (MetaScreen *screen,
int index)
{
XRROutputInfo *output;
RROutput primary_output;
int i;
XID