mutter/src/backends/meta-monitor-manager.c

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/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
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/*
* 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.
* Copyright (C) 2020 NVIDIA CORPORATION
2014-05-02 09:34:02 -04:00
*
* 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.
2014-05-02 09:34:02 -04:00
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
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/**
* MetaMonitorManager:
*
* A manager for multiple monitors
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*
* #MetaMonitorManager is an abstract class which contains methods to handle
* multiple monitors (both #MetaMonitor and #MetaLogicalMonitor) and GPU's
* (#MetaGpu). Its functions include reading and/or changing the current
* configuration and available capabiliies.
*
* The #MetaMonitorManager also provides the "org.gnome.Mutter.DisplayConfig"
* DBus service, so apps like GNOME Settings can use this functionality.
*/
#include "config.h"
#include "backends/meta-monitor-manager-private.h"
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#include <string.h>
#include <math.h>
#include <stdlib.h>
#include "backends/meta-backend-private.h"
#include "backends/meta-crtc.h"
#include "backends/meta-logical-monitor.h"
#include "backends/meta-monitor.h"
#include "backends/meta-monitor-config-manager.h"
#include "backends/meta-monitor-config-store.h"
#include "backends/meta-orientation-manager.h"
#include "backends/meta-output.h"
Introduce virtual monitors Virtual monitors are monitors that isn't backed by any monitor like hardware. It would typically be backed by e.g. a remote desktop service, or a network display. It is currently only supported by the native backend, and whether the X11 backend will ever see virtual monitors is an open question. This rest of this commit message describes how it works under the native backend. Each virutal monitor consists of virtualized mode setting components: * A virtual CRTC mode (MetaCrtcModeVirtual) * A virtual CRTC (MetaCrtcVirtual) * A virtual connector (MetaOutputVirtual) In difference to the corresponding mode setting objects that represents KMS objects, the virtual ones isn't directly tied to a MetaGpu, other than the CoglFramebuffer being part of the GPU context of the primary GPU, which is the case for all monitors no matter what GPU they are connected to. Part of the reason for this is that a MetaGpu in practice represents a mode setting device, and its CRTCs and outputs, are all backed by real mode setting objects, while a virtual monitor is only backed by a framebuffer that is tied to the primary GPU. Maybe this will be reevaluated in the future, but since a virtual monitor is not tied to any GPU currently, so is the case for the virtual mode setting objects. The native rendering backend, including the cursor renderer, is adapted to handle the situation where a CRTC does not have a GPU associated with it; this in practice means that it e.g. will not try to upload HW cursor buffers when the cursor is only on a virtual monitor. The same applies to the native renderer, which is made to avoid creating MetaOnscreenNative for views that are backed by virtual CRTCs, as well as to avoid trying to mode set on such views. Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1698>
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#include "backends/meta-virtual-monitor.h"
#include "backends/x11/meta-monitor-manager-xrandr.h"
#include "clutter/clutter.h"
#include "core/util-private.h"
#include "meta/main.h"
#include "meta/meta-enum-types.h"
#include "meta-dbus-display-config.h"
#define DEFAULT_DISPLAY_CONFIGURATION_TIMEOUT 20
enum
{
PROP_0,
PROP_BACKEND,
PROP_PANEL_ORIENTATION_MANAGED,
PROP_HAS_BUILTIN_PANEL,
PROP_NIGHT_LIGHT_SUPPORTED,
PROP_EXPERIMENTAL_HDR,
PROP_LAST
};
static GParamSpec *obj_props[PROP_LAST];
enum
{
MONITORS_CHANGED,
MONITORS_CHANGED_INTERNAL,
POWER_SAVE_MODE_CHANGED,
CONFIRM_DISPLAY_CHANGE,
MONITOR_PRIVACY_SCREEN_CHANGED,
SIGNALS_LAST
};
/* Array index matches MetaMonitorTransform */
static gfloat transform_matrices[][6] = {
{ 1, 0, 0, 0, 1, 0 }, /* normal */
{ 0, -1, 1, 1, 0, 0 }, /* 90° */
{ -1, 0, 1, 0, -1, 1 }, /* 180° */
{ 0, 1, 0, -1, 0, 1 }, /* 270° */
{ -1, 0, 1, 0, 1, 0 }, /* normal flipped */
{ 0, 1, 0, 1, 0, 0 }, /* 90° flipped */
{ 1, 0, 0, 0, -1, 1 }, /* 180° flipped */
{ 0, -1, 1, -1, 0, 1 }, /* 270° flipped */
};
static int signals[SIGNALS_LAST];
typedef struct _MetaMonitorManagerPrivate
{
MetaPowerSave power_save_mode;
gboolean initial_orient_change_done;
Introduce virtual monitors Virtual monitors are monitors that isn't backed by any monitor like hardware. It would typically be backed by e.g. a remote desktop service, or a network display. It is currently only supported by the native backend, and whether the X11 backend will ever see virtual monitors is an open question. This rest of this commit message describes how it works under the native backend. Each virutal monitor consists of virtualized mode setting components: * A virtual CRTC mode (MetaCrtcModeVirtual) * A virtual CRTC (MetaCrtcVirtual) * A virtual connector (MetaOutputVirtual) In difference to the corresponding mode setting objects that represents KMS objects, the virtual ones isn't directly tied to a MetaGpu, other than the CoglFramebuffer being part of the GPU context of the primary GPU, which is the case for all monitors no matter what GPU they are connected to. Part of the reason for this is that a MetaGpu in practice represents a mode setting device, and its CRTCs and outputs, are all backed by real mode setting objects, while a virtual monitor is only backed by a framebuffer that is tied to the primary GPU. Maybe this will be reevaluated in the future, but since a virtual monitor is not tied to any GPU currently, so is the case for the virtual mode setting objects. The native rendering backend, including the cursor renderer, is adapted to handle the situation where a CRTC does not have a GPU associated with it; this in practice means that it e.g. will not try to upload HW cursor buffers when the cursor is only on a virtual monitor. The same applies to the native renderer, which is made to avoid creating MetaOnscreenNative for views that are backed by virtual CRTCs, as well as to avoid trying to mode set on such views. Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1698>
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GList *virtual_monitors;
gboolean shutting_down;
gboolean has_builtin_panel;
gboolean night_light_supported;
char *experimental_hdr;
guint reload_monitor_manager_id;
guint switch_config_handle_id;
} MetaMonitorManagerPrivate;
G_DEFINE_TYPE_WITH_PRIVATE (MetaMonitorManager, meta_monitor_manager,
G_TYPE_OBJECT)
static void initialize_dbus_interface (MetaMonitorManager *manager);
static void monitor_manager_setup_dbus_config_handlers (MetaMonitorManager *manager);
static gboolean
meta_monitor_manager_is_config_complete (MetaMonitorManager *manager,
MetaMonitorsConfig *config);
static void
meta_monitor_manager_real_read_current_state (MetaMonitorManager *manager);
static gboolean
is_global_scale_matching_in_config (MetaMonitorsConfig *config,
float scale);
MetaBackend *
meta_monitor_manager_get_backend (MetaMonitorManager *manager)
{
return manager->backend;
}
static void
meta_monitor_manager_init (MetaMonitorManager *manager)
{
}
static void
meta_monitor_manager_set_primary_logical_monitor (MetaMonitorManager *manager,
MetaLogicalMonitor *logical_monitor)
{
manager->primary_logical_monitor = logical_monitor;
if (logical_monitor)
meta_logical_monitor_make_primary (logical_monitor);
}
static gboolean
is_main_tiled_monitor_output (MetaOutput *output)
{
const MetaOutputInfo *output_info = meta_output_get_info (output);
return (output_info->tile_info.loc_h_tile == 0 &&
output_info->tile_info.loc_v_tile == 0);
}
static MetaLogicalMonitor *
logical_monitor_from_layout (MetaMonitorManager *manager,
GList *logical_monitors,
MtkRectangle *layout)
{
GList *l;
for (l = logical_monitors; l; l = l->next)
{
MetaLogicalMonitor *logical_monitor = l->data;
if (mtk_rectangle_equal (layout, &logical_monitor->rect))
return logical_monitor;
}
return NULL;
}
static void
meta_monitor_manager_rebuild_logical_monitors (MetaMonitorManager *manager,
MetaMonitorsConfig *config)
{
GList *logical_monitor_configs;
GList *logical_monitors = NULL;
GList *l;
int monitor_number = 0;
MetaLogicalMonitor *primary_logical_monitor = NULL;
logical_monitor_configs = config ? config->logical_monitor_configs : NULL;
for (l = logical_monitor_configs; l; l = l->next)
{
MetaLogicalMonitorConfig *logical_monitor_config = l->data;
MetaLogicalMonitor *logical_monitor;
logical_monitor = meta_logical_monitor_new (manager,
logical_monitor_config,
monitor_number);
monitor_number++;
if (logical_monitor_config->is_primary)
primary_logical_monitor = logical_monitor;
logical_monitors = g_list_append (logical_monitors, logical_monitor);
}
/*
* If no monitor was marked as primary, fall back on marking the first
* logical monitor the primary one.
*/
if (!primary_logical_monitor && logical_monitors)
primary_logical_monitor = g_list_first (logical_monitors)->data;
manager->logical_monitors = logical_monitors;
meta_monitor_manager_set_primary_logical_monitor (manager,
primary_logical_monitor);
}
static float
derive_configured_global_scale (MetaMonitorManager *manager,
MetaMonitorsConfig *config)
{
GList *l;
for (l = config->logical_monitor_configs; l; l = l->next)
{
MetaLogicalMonitorConfig *monitor_config = l->data;
if (is_global_scale_matching_in_config (config, monitor_config->scale))
return monitor_config->scale;
}
return 1.0;
}
static float
calculate_monitor_scale (MetaMonitorManager *manager,
MetaMonitor *monitor)
{
MetaMonitorMode *monitor_mode;
monitor_mode = meta_monitor_get_current_mode (monitor);
return meta_monitor_manager_calculate_monitor_mode_scale (manager,
manager->layout_mode,
monitor,
monitor_mode);
}
static gboolean
meta_monitor_manager_is_scale_supported_by_other_monitors (MetaMonitorManager *manager,
MetaMonitor *not_this_one,
float scale)
{
GList *l;
for (l = manager->monitors; l; l = l->next)
{
MetaMonitor *monitor = l->data;
MetaMonitorMode *mode;
if (monitor == not_this_one || !meta_monitor_is_active (monitor))
continue;
mode = meta_monitor_get_current_mode (monitor);
if (!meta_monitor_manager_is_scale_supported (manager,
manager->layout_mode,
monitor, mode, scale))
return FALSE;
}
return TRUE;
}
static float
derive_calculated_global_scale (MetaMonitorManager *manager)
{
MetaMonitor *monitor = NULL;
float scale;
GList *l;
scale = 1.0;
monitor = meta_monitor_manager_get_primary_monitor (manager);
if (monitor && meta_monitor_is_active (monitor))
{
scale = calculate_monitor_scale (manager, monitor);
if (meta_monitor_manager_is_scale_supported_by_other_monitors (manager,
monitor,
scale))
return scale;
}
for (l = manager->monitors; l; l = l->next)
{
MetaMonitor *other_monitor = l->data;
float monitor_scale;
if (other_monitor == monitor || !meta_monitor_is_active (other_monitor))
continue;
monitor_scale = calculate_monitor_scale (manager, other_monitor);
if (meta_monitor_manager_is_scale_supported_by_other_monitors (manager,
other_monitor,
monitor_scale))
scale = MAX (scale, monitor_scale);
}
return scale;
}
static float
derive_scale_from_config (MetaMonitorManager *manager,
MetaMonitorsConfig *config,
MtkRectangle *layout)
{
GList *l;
for (l = config->logical_monitor_configs; l; l = l->next)
{
MetaLogicalMonitorConfig *logical_monitor_config = l->data;
if (mtk_rectangle_equal (layout, &logical_monitor_config->layout))
return logical_monitor_config->scale;
}
g_warning ("Missing logical monitor, using scale 1");
return 1.0;
}
static void
meta_monitor_manager_rebuild_logical_monitors_derived (MetaMonitorManager *manager,
MetaMonitorsConfig *config)
{
GList *logical_monitors = NULL;
GList *l;
int monitor_number;
MetaLogicalMonitor *primary_logical_monitor = NULL;
gboolean use_global_scale;
float global_scale = 0.0;
MetaMonitorManagerCapability capabilities;
monitor_number = 0;
capabilities = meta_monitor_manager_get_capabilities (manager);
use_global_scale =
!!(capabilities & META_MONITOR_MANAGER_CAPABILITY_GLOBAL_SCALE_REQUIRED);
if (use_global_scale)
{
if (config)
global_scale = derive_configured_global_scale (manager, config);
else
global_scale = derive_calculated_global_scale (manager);
}
for (l = manager->monitors; l; l = l->next)
{
MetaMonitor *monitor = l->data;
MetaLogicalMonitor *logical_monitor;
MtkRectangle layout;
if (!meta_monitor_is_active (monitor))
continue;
meta_monitor_derive_layout (monitor, &layout);
logical_monitor = logical_monitor_from_layout (manager, logical_monitors,
&layout);
if (logical_monitor)
{
meta_logical_monitor_add_monitor (logical_monitor, monitor);
}
else
{
float scale;
if (use_global_scale)
scale = global_scale;
else if (config)
scale = derive_scale_from_config (manager, config, &layout);
else
scale = calculate_monitor_scale (manager, monitor);
g_assert (scale > 0);
logical_monitor = meta_logical_monitor_new_derived (manager,
monitor,
&layout,
scale,
monitor_number);
logical_monitors = g_list_append (logical_monitors, logical_monitor);
monitor_number++;
}
if (meta_monitor_is_primary (monitor))
primary_logical_monitor = logical_monitor;
}
manager->logical_monitors = logical_monitors;
/*
* If no monitor was marked as primary, fall back on marking the first
* logical monitor the primary one.
*/
if (!primary_logical_monitor && manager->logical_monitors)
primary_logical_monitor = g_list_first (manager->logical_monitors)->data;
meta_monitor_manager_set_primary_logical_monitor (manager,
primary_logical_monitor);
}
void
meta_monitor_manager_power_save_mode_changed (MetaMonitorManager *manager,
MetaPowerSave mode,
MetaPowerSaveChangeReason reason)
{
MetaMonitorManagerPrivate *priv =
meta_monitor_manager_get_instance_private (manager);
if (priv->power_save_mode == mode)
return;
priv->power_save_mode = mode;
g_signal_emit (manager, signals[POWER_SAVE_MODE_CHANGED], 0, reason);
}
static void
power_save_mode_changed (MetaMonitorManager *manager,
GParamSpec *pspec,
gpointer user_data)
{
MetaMonitorManagerPrivate *priv =
meta_monitor_manager_get_instance_private (manager);
MetaMonitorManagerClass *klass;
int mode = meta_dbus_display_config_get_power_save_mode (manager->display_config);
MetaPowerSaveChangeReason reason;
if (mode == META_POWER_SAVE_UNSUPPORTED)
return;
/* If DPMS is unsupported, force the property back. */
if (priv->power_save_mode == META_POWER_SAVE_UNSUPPORTED)
{
meta_dbus_display_config_set_power_save_mode (manager->display_config, META_POWER_SAVE_UNSUPPORTED);
return;
}
klass = META_MONITOR_MANAGER_GET_CLASS (manager);
if (klass->set_power_save_mode)
klass->set_power_save_mode (manager, mode);
reason = META_POWER_SAVE_CHANGE_REASON_MODE_CHANGE;
meta_monitor_manager_power_save_mode_changed (manager, mode, reason);
}
void
meta_monitor_manager_lid_is_closed_changed (MetaMonitorManager *manager)
{
meta_monitor_manager_ensure_configured (manager);
}
static void
lid_is_closed_changed (MetaBackend *backend,
gboolean lid_is_closed,
gpointer user_data)
{
MetaMonitorManager *manager = user_data;
meta_monitor_manager_lid_is_closed_changed (manager);
}
Introduce virtual monitors Virtual monitors are monitors that isn't backed by any monitor like hardware. It would typically be backed by e.g. a remote desktop service, or a network display. It is currently only supported by the native backend, and whether the X11 backend will ever see virtual monitors is an open question. This rest of this commit message describes how it works under the native backend. Each virutal monitor consists of virtualized mode setting components: * A virtual CRTC mode (MetaCrtcModeVirtual) * A virtual CRTC (MetaCrtcVirtual) * A virtual connector (MetaOutputVirtual) In difference to the corresponding mode setting objects that represents KMS objects, the virtual ones isn't directly tied to a MetaGpu, other than the CoglFramebuffer being part of the GPU context of the primary GPU, which is the case for all monitors no matter what GPU they are connected to. Part of the reason for this is that a MetaGpu in practice represents a mode setting device, and its CRTCs and outputs, are all backed by real mode setting objects, while a virtual monitor is only backed by a framebuffer that is tied to the primary GPU. Maybe this will be reevaluated in the future, but since a virtual monitor is not tied to any GPU currently, so is the case for the virtual mode setting objects. The native rendering backend, including the cursor renderer, is adapted to handle the situation where a CRTC does not have a GPU associated with it; this in practice means that it e.g. will not try to upload HW cursor buffers when the cursor is only on a virtual monitor. The same applies to the native renderer, which is made to avoid creating MetaOnscreenNative for views that are backed by virtual CRTCs, as well as to avoid trying to mode set on such views. Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1698>
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static void
prepare_shutdown (MetaBackend *backend,
MetaMonitorManager *manager)
{
MetaMonitorManagerPrivate *priv =
meta_monitor_manager_get_instance_private (manager);
priv->shutting_down = TRUE;
g_clear_handle_id (&priv->reload_monitor_manager_id, g_source_remove);
Introduce virtual monitors Virtual monitors are monitors that isn't backed by any monitor like hardware. It would typically be backed by e.g. a remote desktop service, or a network display. It is currently only supported by the native backend, and whether the X11 backend will ever see virtual monitors is an open question. This rest of this commit message describes how it works under the native backend. Each virutal monitor consists of virtualized mode setting components: * A virtual CRTC mode (MetaCrtcModeVirtual) * A virtual CRTC (MetaCrtcVirtual) * A virtual connector (MetaOutputVirtual) In difference to the corresponding mode setting objects that represents KMS objects, the virtual ones isn't directly tied to a MetaGpu, other than the CoglFramebuffer being part of the GPU context of the primary GPU, which is the case for all monitors no matter what GPU they are connected to. Part of the reason for this is that a MetaGpu in practice represents a mode setting device, and its CRTCs and outputs, are all backed by real mode setting objects, while a virtual monitor is only backed by a framebuffer that is tied to the primary GPU. Maybe this will be reevaluated in the future, but since a virtual monitor is not tied to any GPU currently, so is the case for the virtual mode setting objects. The native rendering backend, including the cursor renderer, is adapted to handle the situation where a CRTC does not have a GPU associated with it; this in practice means that it e.g. will not try to upload HW cursor buffers when the cursor is only on a virtual monitor. The same applies to the native renderer, which is made to avoid creating MetaOnscreenNative for views that are backed by virtual CRTCs, as well as to avoid trying to mode set on such views. Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1698>
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}
static void
ensure_hdr_settings (MetaMonitorManager *manager)
{
MetaMonitorManagerPrivate *priv =
meta_monitor_manager_get_instance_private (manager);
MetaOutputColorspace color_space;
MetaOutputHdrMetadata hdr_metadata;
GList *l;
if (g_strcmp0 (priv->experimental_hdr, "on") == 0)
{
color_space = META_OUTPUT_COLORSPACE_BT2020;
hdr_metadata = (MetaOutputHdrMetadata) {
.active = TRUE,
.eotf = META_OUTPUT_HDR_METADATA_EOTF_PQ,
};
meta_topic (META_DEBUG_COLOR,
"MonitorManager: Trying to enabling HDR mode "
"(Colorimetry: bt.2020, TF: PQ, HDR Metadata: Minimal):");
}
else
{
color_space = META_OUTPUT_COLORSPACE_DEFAULT;
hdr_metadata = (MetaOutputHdrMetadata) {
.active = FALSE,
};
meta_topic (META_DEBUG_COLOR,
"MonitorManager: Trying to enable default mode "
"(Colorimetry: default, TF: default, HDR Metadata: None):");
}
for (l = manager->monitors; l; l = l->next)
{
MetaMonitor *monitor = l->data;
g_autoptr (GError) error = NULL;
if (!meta_monitor_set_color_space (monitor, color_space, &error))
{
meta_monitor_set_color_space (monitor,
META_OUTPUT_COLORSPACE_DEFAULT,
NULL);
meta_monitor_set_hdr_metadata (monitor, &(MetaOutputHdrMetadata) {
.active = FALSE,
}, NULL);
if (g_error_matches (error, G_IO_ERROR, G_IO_ERROR_NOT_SUPPORTED))
{
meta_topic (META_DEBUG_COLOR,
"MonitorManager: Colorimetry not supported "
"on monitor %s",
meta_monitor_get_display_name (monitor));
}
else
{
g_warning ("Failed to set color space on monitor %s: %s",
meta_monitor_get_display_name (monitor), error->message);
}
continue;
}
if (!meta_monitor_set_hdr_metadata (monitor, &hdr_metadata, &error))
{
meta_monitor_set_color_space (monitor,
META_OUTPUT_COLORSPACE_DEFAULT,
NULL);
meta_monitor_set_hdr_metadata (monitor, &(MetaOutputHdrMetadata) {
.active = FALSE,
}, NULL);
if (g_error_matches (error, G_IO_ERROR, G_IO_ERROR_NOT_SUPPORTED))
{
meta_topic (META_DEBUG_COLOR,
"MonitorManager: HDR Metadata not supported "
"on monitor %s",
meta_monitor_get_display_name (monitor));
}
else
{
g_warning ("Failed to set HDR metadata on monitor %s: %s",
meta_monitor_get_display_name (monitor),
error->message);
}
continue;
}
meta_topic (META_DEBUG_COLOR,
"MonitorManager: successfully set on monitor %s",
meta_monitor_get_display_name (monitor));
}
}
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/**
* meta_monitor_manager_is_headless:
* @manager: A #MetaMonitorManager object
*
* Returns whether the monitor manager is headless, i.e. without
* any `MetaLogicalMonitor`s attached to it.
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*
* Returns: %TRUE if no monitors are attached, %FALSE otherwise.
*/
gboolean
meta_monitor_manager_is_headless (MetaMonitorManager *manager)
{
return !manager->logical_monitors;
}
float
meta_monitor_manager_calculate_monitor_mode_scale (MetaMonitorManager *manager,
MetaLogicalMonitorLayoutMode layout_mode,
MetaMonitor *monitor,
MetaMonitorMode *monitor_mode)
{
MetaMonitorManagerClass *manager_class =
META_MONITOR_MANAGER_GET_CLASS (manager);
return manager_class->calculate_monitor_mode_scale (manager,
layout_mode,
monitor,
monitor_mode);
}
float *
meta_monitor_manager_calculate_supported_scales (MetaMonitorManager *manager,
MetaLogicalMonitorLayoutMode layout_mode,
MetaMonitor *monitor,
MetaMonitorMode *monitor_mode,
int *n_supported_scales)
{
MetaMonitorManagerClass *manager_class =
META_MONITOR_MANAGER_GET_CLASS (manager);
return manager_class->calculate_supported_scales (manager,
layout_mode,
monitor,
monitor_mode,
n_supported_scales);
}
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/**
* meta_monitor_manager_get_capabilities:
* @manager: A #MetaMonitorManager object
*
* Queries the capabilities of the monitor manager.
*
* Returns: #MetaMonitorManagerCapability flags representing the capabilities.
*/
MetaMonitorManagerCapability
meta_monitor_manager_get_capabilities (MetaMonitorManager *manager)
{
MetaMonitorManagerClass *manager_class =
META_MONITOR_MANAGER_GET_CLASS (manager);
return manager_class->get_capabilities (manager);
}
gboolean
meta_monitor_manager_get_max_screen_size (MetaMonitorManager *manager,
int *max_width,
int *max_height)
{
MetaMonitorManagerClass *manager_class =
META_MONITOR_MANAGER_GET_CLASS (manager);
return manager_class->get_max_screen_size (manager, max_width, max_height);
}
MetaLogicalMonitorLayoutMode
meta_monitor_manager_get_default_layout_mode (MetaMonitorManager *manager)
{
MetaMonitorManagerClass *manager_class =
META_MONITOR_MANAGER_GET_CLASS (manager);
return manager_class->get_default_layout_mode (manager);
}
Introduce virtual monitors Virtual monitors are monitors that isn't backed by any monitor like hardware. It would typically be backed by e.g. a remote desktop service, or a network display. It is currently only supported by the native backend, and whether the X11 backend will ever see virtual monitors is an open question. This rest of this commit message describes how it works under the native backend. Each virutal monitor consists of virtualized mode setting components: * A virtual CRTC mode (MetaCrtcModeVirtual) * A virtual CRTC (MetaCrtcVirtual) * A virtual connector (MetaOutputVirtual) In difference to the corresponding mode setting objects that represents KMS objects, the virtual ones isn't directly tied to a MetaGpu, other than the CoglFramebuffer being part of the GPU context of the primary GPU, which is the case for all monitors no matter what GPU they are connected to. Part of the reason for this is that a MetaGpu in practice represents a mode setting device, and its CRTCs and outputs, are all backed by real mode setting objects, while a virtual monitor is only backed by a framebuffer that is tied to the primary GPU. Maybe this will be reevaluated in the future, but since a virtual monitor is not tied to any GPU currently, so is the case for the virtual mode setting objects. The native rendering backend, including the cursor renderer, is adapted to handle the situation where a CRTC does not have a GPU associated with it; this in practice means that it e.g. will not try to upload HW cursor buffers when the cursor is only on a virtual monitor. The same applies to the native renderer, which is made to avoid creating MetaOnscreenNative for views that are backed by virtual CRTCs, as well as to avoid trying to mode set on such views. Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1698>
2021-01-26 10:49:28 -05:00
static void
on_virtual_monitor_destroyed (MetaVirtualMonitor *virtual_monitor,
MetaMonitorManager *manager)
{
MetaMonitorManagerPrivate *priv =
meta_monitor_manager_get_instance_private (manager);
MetaOutput *output;
output = meta_virtual_monitor_get_output (virtual_monitor);
g_message ("Removed virtual monitor %s", meta_output_get_name (output));
priv->virtual_monitors = g_list_remove (priv->virtual_monitors,
virtual_monitor);
if (!priv->shutting_down && !priv->reload_monitor_manager_id)
{
priv->reload_monitor_manager_id =
g_idle_add_once ((GSourceOnceFunc) meta_monitor_manager_reload,
manager);
}
Introduce virtual monitors Virtual monitors are monitors that isn't backed by any monitor like hardware. It would typically be backed by e.g. a remote desktop service, or a network display. It is currently only supported by the native backend, and whether the X11 backend will ever see virtual monitors is an open question. This rest of this commit message describes how it works under the native backend. Each virutal monitor consists of virtualized mode setting components: * A virtual CRTC mode (MetaCrtcModeVirtual) * A virtual CRTC (MetaCrtcVirtual) * A virtual connector (MetaOutputVirtual) In difference to the corresponding mode setting objects that represents KMS objects, the virtual ones isn't directly tied to a MetaGpu, other than the CoglFramebuffer being part of the GPU context of the primary GPU, which is the case for all monitors no matter what GPU they are connected to. Part of the reason for this is that a MetaGpu in practice represents a mode setting device, and its CRTCs and outputs, are all backed by real mode setting objects, while a virtual monitor is only backed by a framebuffer that is tied to the primary GPU. Maybe this will be reevaluated in the future, but since a virtual monitor is not tied to any GPU currently, so is the case for the virtual mode setting objects. The native rendering backend, including the cursor renderer, is adapted to handle the situation where a CRTC does not have a GPU associated with it; this in practice means that it e.g. will not try to upload HW cursor buffers when the cursor is only on a virtual monitor. The same applies to the native renderer, which is made to avoid creating MetaOnscreenNative for views that are backed by virtual CRTCs, as well as to avoid trying to mode set on such views. Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1698>
2021-01-26 10:49:28 -05:00
}
MetaVirtualMonitor *
meta_monitor_manager_create_virtual_monitor (MetaMonitorManager *manager,
const MetaVirtualMonitorInfo *info,
GError **error)
{
MetaMonitorManagerPrivate *priv =
meta_monitor_manager_get_instance_private (manager);
MetaMonitorManagerClass *manager_class =
META_MONITOR_MANAGER_GET_CLASS (manager);
MetaVirtualMonitor *virtual_monitor;
MetaOutput *output;
if (!manager_class->create_virtual_monitor)
{
g_set_error (error, G_IO_ERROR, G_IO_ERROR_NOT_SUPPORTED,
"Backend doesn't support creating virtual monitors");
return NULL;
}
virtual_monitor = manager_class->create_virtual_monitor (manager, info,
error);
if (!virtual_monitor)
return NULL;
g_signal_connect (virtual_monitor, "destroy",
G_CALLBACK (on_virtual_monitor_destroyed),
manager);
priv->virtual_monitors = g_list_append (priv->virtual_monitors,
virtual_monitor);
output = meta_virtual_monitor_get_output (virtual_monitor);
g_message ("Added virtual monitor %s", meta_output_get_name (output));
return virtual_monitor;
}
static void
meta_monitor_manager_ensure_initial_config (MetaMonitorManager *manager)
{
META_MONITOR_MANAGER_GET_CLASS (manager)->ensure_initial_config (manager);
}
gboolean
meta_monitor_manager_apply_monitors_config (MetaMonitorManager *manager,
MetaMonitorsConfig *config,
MetaMonitorsConfigMethod method,
GError **error)
{
MetaMonitorManagerClass *manager_class =
META_MONITOR_MANAGER_GET_CLASS (manager);
g_assert (!config ||
!(config->flags & META_MONITORS_CONFIG_FLAG_MIGRATED));
if (!manager_class->apply_monitors_config (manager, config, method, error))
return FALSE;
switch (method)
{
case META_MONITORS_CONFIG_METHOD_TEMPORARY:
case META_MONITORS_CONFIG_METHOD_PERSISTENT:
meta_monitor_config_manager_set_current (manager->config_manager, config);
break;
case META_MONITORS_CONFIG_METHOD_VERIFY:
break;
}
return TRUE;
}
static gboolean
meta_monitor_manager_has_hotplug_mode_update (MetaMonitorManager *manager)
{
GList *gpus;
GList *l;
gpus = meta_backend_get_gpus (manager->backend);
for (l = gpus; l; l = l->next)
{
MetaGpu *gpu = l->data;
if (meta_gpu_has_hotplug_mode_update (gpu))
return TRUE;
}
return FALSE;
}
static gboolean
should_use_stored_config (MetaMonitorManager *manager)
{
return (manager->in_init ||
!meta_monitor_manager_has_hotplug_mode_update (manager));
}
MetaMonitorsConfig *
meta_monitor_manager_ensure_configured (MetaMonitorManager *manager)
{
MetaMonitorsConfig *config = NULL;
GError *error = NULL;
gboolean use_stored_config;
MetaMonitorsConfigMethod method;
MetaMonitorsConfigMethod fallback_method =
META_MONITORS_CONFIG_METHOD_TEMPORARY;
use_stored_config = should_use_stored_config (manager);
if (use_stored_config)
method = META_MONITORS_CONFIG_METHOD_PERSISTENT;
else
method = META_MONITORS_CONFIG_METHOD_TEMPORARY;
if (use_stored_config)
{
config = meta_monitor_config_manager_get_stored (manager->config_manager);
if (config)
{
g_autoptr (MetaMonitorsConfig) oriented_config = NULL;
if (manager->panel_orientation_managed)
{
oriented_config = meta_monitor_config_manager_create_for_builtin_orientation (
manager->config_manager, config);
if (oriented_config)
config = oriented_config;
}
if (!meta_monitor_manager_apply_monitors_config (manager,
config,
method,
&error))
{
config = NULL;
g_warning ("Failed to use stored monitor configuration: %s",
error->message);
g_clear_error (&error);
}
else
{
g_object_ref (config);
goto done;
}
}
}
if (manager->panel_orientation_managed)
{
MetaMonitorsConfig *current_config =
meta_monitor_config_manager_get_current (manager->config_manager);
if (current_config)
{
config = meta_monitor_config_manager_create_for_builtin_orientation (
manager->config_manager, current_config);
}
}
if (config)
{
if (meta_monitor_manager_is_config_complete (manager, config))
{
if (!meta_monitor_manager_apply_monitors_config (manager,
config,
method,
&error))
{
g_clear_object (&config);
g_warning ("Failed to use current monitor configuration: %s",
error->message);
g_clear_error (&error);
}
else
{
goto done;
}
}
}
config = meta_monitor_config_manager_create_suggested (manager->config_manager);
if (config)
{
if (!meta_monitor_manager_apply_monitors_config (manager,
config,
method,
&error))
{
g_clear_object (&config);
g_warning ("Failed to use suggested monitor configuration: %s",
error->message);
g_clear_error (&error);
}
else
{
goto done;
}
}
config = meta_monitor_config_manager_get_previous (manager->config_manager);
if (config)
{
g_autoptr (MetaMonitorsConfig) oriented_config = NULL;
if (manager->panel_orientation_managed)
{
oriented_config =
meta_monitor_config_manager_create_for_builtin_orientation (
manager->config_manager, config);
if (oriented_config)
config = oriented_config;
}
config = g_object_ref (config);
if (meta_monitor_manager_is_config_complete (manager, config))
{
if (!meta_monitor_manager_apply_monitors_config (manager,
config,
method,
&error))
{
g_warning ("Failed to use suggested monitor configuration: %s",
error->message);
g_clear_error (&error);
}
else
{
goto done;
}
}
g_clear_object (&config);
}
config = meta_monitor_config_manager_create_linear (manager->config_manager);
if (config)
{
if (!meta_monitor_manager_apply_monitors_config (manager,
config,
method,
&error))
{
g_clear_object (&config);
g_warning ("Failed to use linear monitor configuration: %s",
error->message);
g_clear_error (&error);
}
else
{
goto done;
}
}
config = meta_monitor_config_manager_create_fallback (manager->config_manager);
if (config)
{
if (!meta_monitor_manager_apply_monitors_config (manager,
config,
fallback_method,
&error))
{
g_clear_object (&config);
g_warning ("Failed to use fallback monitor configuration: %s",
error->message);
g_clear_error (&error);
}
else
{
goto done;
}
}
done:
if (!config)
{
meta_monitor_manager_apply_monitors_config (manager,
NULL,
fallback_method,
&error);
return NULL;
}
g_object_unref (config);
return config;
}
static void
handle_orientation_change (MetaOrientationManager *orientation_manager,
MetaMonitorManager *manager)
{
MetaOrientation orientation;
MetaMonitorTransform transform;
MetaMonitorTransform panel_transform;
GError *error = NULL;
MetaMonitorsConfig *config;
MetaMonitor *laptop_panel;
MetaLogicalMonitor *laptop_logical_monitor;
MetaMonitorsConfig *current_config;
laptop_panel = meta_monitor_manager_get_laptop_panel (manager);
g_return_if_fail (laptop_panel);
if (!meta_monitor_is_active (laptop_panel))
return;
orientation = meta_orientation_manager_get_orientation (orientation_manager);
transform = meta_monitor_transform_from_orientation (orientation);
laptop_logical_monitor = meta_monitor_get_logical_monitor (laptop_panel);
panel_transform =
meta_monitor_crtc_to_logical_transform (laptop_panel, transform);
if (meta_logical_monitor_get_transform (laptop_logical_monitor) ==
panel_transform)
return;
current_config =
meta_monitor_config_manager_get_current (manager->config_manager);
if (!current_config)
return;
config =
meta_monitor_config_manager_create_for_orientation (manager->config_manager,
current_config,
transform);
if (!config)
return;
if (!meta_monitor_manager_apply_monitors_config (manager,
config,
META_MONITORS_CONFIG_METHOD_TEMPORARY,
&error))
{
g_warning ("Failed to use orientation monitor configuration: %s",
error->message);
g_error_free (error);
}
g_object_unref (config);
}
/*
* Special case for tablets with a native portrait mode and a keyboard dock,
* where the device gets docked in landscape mode. For this combo to work
* properly with mutter starting while the tablet is docked, we need to take
* the accelerometer reported orientation into account (at mutter startup)
* even if there is a tablet-mode-switch which indicates that the device is
* NOT in tablet-mode (because it is docked).
*/
static gboolean
handle_initial_orientation_change (MetaOrientationManager *orientation_manager,
MetaMonitorManager *manager)
{
ClutterBackend *clutter_backend;
ClutterSeat *seat;
MetaMonitor *monitor;
MetaMonitorMode *mode;
int width, height;
clutter_backend = meta_backend_get_clutter_backend (manager->backend);
seat = clutter_backend_get_default_seat (clutter_backend);
/*
* This is a workaround to ignore the tablet mode switch on the initial config
* of devices with a native portrait mode panel. The touchscreen and
* accelerometer requirements for applying the orientation must still be met.
*/
if (!clutter_seat_has_touchscreen (seat) ||
!meta_orientation_manager_has_accelerometer (orientation_manager))
return FALSE;
/* Check for a portrait mode panel */
monitor = meta_monitor_manager_get_laptop_panel (manager);
if (!monitor)
return FALSE;
mode = meta_monitor_get_preferred_mode (monitor);
meta_monitor_mode_get_resolution (mode, &width, &height);
if (width > height)
return FALSE;
handle_orientation_change (orientation_manager, manager);
return TRUE;
}
static void
orientation_changed (MetaOrientationManager *orientation_manager,
MetaMonitorManager *manager)
{
MetaMonitorManagerPrivate *priv =
meta_monitor_manager_get_instance_private (manager);
if (!priv->initial_orient_change_done)
{
priv->initial_orient_change_done = TRUE;
if (handle_initial_orientation_change (orientation_manager, manager))
return;
}
if (!manager->panel_orientation_managed)
return;
handle_orientation_change (orientation_manager, manager);
}
static void
experimental_features_changed (MetaSettings *settings,
MetaExperimentalFeature old_experimental_features,
MetaMonitorManager *manager)
{
gboolean was_stage_views_scaled;
gboolean is_stage_views_scaled;
gboolean should_reconfigure = FALSE;
was_stage_views_scaled =
!!(old_experimental_features &
META_EXPERIMENTAL_FEATURE_SCALE_MONITOR_FRAMEBUFFER);
is_stage_views_scaled =
meta_settings_is_experimental_feature_enabled (
settings,
META_EXPERIMENTAL_FEATURE_SCALE_MONITOR_FRAMEBUFFER);
if (is_stage_views_scaled != was_stage_views_scaled)
should_reconfigure = TRUE;
if (should_reconfigure)
meta_monitor_manager_reconfigure (manager);
meta_settings_update_ui_scaling_factor (settings);
}
static gboolean
ensure_privacy_screen_settings (MetaMonitorManager *manager)
{
MetaSettings *settings = meta_backend_get_settings (manager->backend);
gboolean privacy_screen_enabled;
GList *l;
privacy_screen_enabled = meta_settings_is_privacy_screen_enabled (settings);
for (l = manager->monitors; l; l = l->next)
{
MetaMonitor *monitor = l->data;
g_autoptr (GError) error = NULL;
if (!meta_monitor_set_privacy_screen_enabled (monitor,
privacy_screen_enabled,
&error))
{
if (g_error_matches (error, G_IO_ERROR, G_IO_ERROR_NOT_SUPPORTED))
continue;
g_warning ("Failed to set privacy screen setting on monitor %s: %s",
meta_monitor_get_display_name (monitor), error->message);
return FALSE;
}
}
return TRUE;
}
static MetaPrivacyScreenState
get_global_privacy_screen_state (MetaMonitorManager *manager)
{
MetaPrivacyScreenState global_state = META_PRIVACY_SCREEN_UNAVAILABLE;
GList *l;
for (l = manager->monitors; l; l = l->next)
{
MetaMonitor *monitor = l->data;
MetaPrivacyScreenState monitor_state;
if (!meta_monitor_is_active (monitor))
continue;
monitor_state = meta_monitor_get_privacy_screen_state (monitor);
if (monitor_state == META_PRIVACY_SCREEN_UNAVAILABLE)
continue;
if (monitor_state & META_PRIVACY_SCREEN_DISABLED)
return META_PRIVACY_SCREEN_DISABLED;
if (monitor_state & META_PRIVACY_SCREEN_ENABLED)
global_state = META_PRIVACY_SCREEN_ENABLED;
}
return global_state;
}
static gboolean
privacy_screen_needs_update (MetaMonitorManager *manager)
{
MetaSettings *settings = meta_backend_get_settings (manager->backend);
MetaPrivacyScreenState privacy_screen_state =
get_global_privacy_screen_state (manager);
if (privacy_screen_state == META_PRIVACY_SCREEN_UNAVAILABLE)
return FALSE;
return (!!(privacy_screen_state & META_PRIVACY_SCREEN_ENABLED) !=
meta_settings_is_privacy_screen_enabled (settings));
}
static void
apply_privacy_screen_settings (MetaMonitorManager *manager)
{
if (privacy_screen_needs_update (manager) &&
ensure_privacy_screen_settings (manager))
{
manager->privacy_screen_change_state =
META_PRIVACY_SCREEN_CHANGE_STATE_PENDING_SETTING;
}
}
static void
update_panel_orientation_managed (MetaMonitorManager *manager)
{
MetaOrientationManager *orientation_manager;
ClutterBackend *clutter_backend;
ClutterSeat *seat;
gboolean panel_orientation_managed;
clutter_backend = meta_backend_get_clutter_backend (manager->backend);
seat = clutter_backend_get_default_seat (clutter_backend);
orientation_manager = meta_backend_get_orientation_manager (manager->backend);
panel_orientation_managed =
(clutter_seat_get_touch_mode (seat) &&
meta_orientation_manager_has_accelerometer (orientation_manager) &&
meta_monitor_manager_get_laptop_panel (manager));
if (manager->panel_orientation_managed == panel_orientation_managed)
return;
manager->panel_orientation_managed = panel_orientation_managed;
g_object_notify_by_pspec (G_OBJECT (manager),
obj_props[PROP_PANEL_ORIENTATION_MANAGED]);
meta_dbus_display_config_set_panel_orientation_managed (manager->display_config,
manager->panel_orientation_managed);
/* The orientation may have changed while it was unmanaged */
if (panel_orientation_managed)
handle_orientation_change (orientation_manager, manager);
}
static void
update_has_builtin_panel (MetaMonitorManager *manager)
{
MetaMonitorManagerPrivate *priv =
meta_monitor_manager_get_instance_private (manager);
GList *l;
gboolean has_builtin_panel = FALSE;
for (l = manager->monitors; l; l = l->next)
{
MetaMonitor *monitor = META_MONITOR (l->data);
if (meta_monitor_is_laptop_panel (monitor))
{
has_builtin_panel = TRUE;
break;
}
}
if (priv->has_builtin_panel == has_builtin_panel)
return;
priv->has_builtin_panel = has_builtin_panel;
g_object_notify_by_pspec (G_OBJECT (manager),
obj_props[PROP_HAS_BUILTIN_PANEL]);
}
static void
update_night_light_supported (MetaMonitorManager *manager)
{
MetaMonitorManagerPrivate *priv =
meta_monitor_manager_get_instance_private (manager);
GList *l;
gboolean night_light_supported = FALSE;
for (l = meta_backend_get_gpus (manager->backend); l; l = l->next)
{
MetaGpu *gpu = l->data;
GList *l_crtc;
for (l_crtc = meta_gpu_get_crtcs (gpu); l_crtc; l_crtc = l_crtc->next)
{
MetaCrtc *crtc = l_crtc->data;
if (meta_crtc_get_gamma_lut_size (crtc) > 0)
{
night_light_supported = TRUE;
break;
}
}
}
if (priv->night_light_supported == night_light_supported)
return;
priv->night_light_supported = night_light_supported;
g_object_notify_by_pspec (G_OBJECT (manager),
obj_props[PROP_NIGHT_LIGHT_SUPPORTED]);
meta_dbus_display_config_set_night_light_supported (manager->display_config,
night_light_supported);
}
void
meta_monitor_manager_setup (MetaMonitorManager *manager)
{
MetaMonitorConfigStore *config_store;
const MetaMonitorConfigPolicy *policy;
MetaMonitorManagerPrivate *priv =
meta_monitor_manager_get_instance_private (manager);
manager->in_init = TRUE;
manager->config_manager = meta_monitor_config_manager_new (manager);
config_store =
meta_monitor_config_manager_get_store (manager->config_manager);
policy = meta_monitor_config_store_get_policy (config_store);
meta_dbus_display_config_set_apply_monitors_config_allowed (manager->display_config,
policy->enable_dbus);
meta_dbus_display_config_set_night_light_supported (manager->display_config,
priv->night_light_supported);
meta_monitor_manager_read_current_state (manager);
meta_monitor_manager_ensure_initial_config (manager);
if (privacy_screen_needs_update (manager))
manager->privacy_screen_change_state = META_PRIVACY_SCREEN_CHANGE_STATE_INIT;
ensure_hdr_settings (manager);
manager->in_init = FALSE;
}
static void
on_started (MetaContext *context,
MetaMonitorManager *monitor_manager)
{
g_signal_connect (monitor_manager, "notify::experimental-hdr",
G_CALLBACK (meta_monitor_manager_reconfigure),
NULL);
}
static void
meta_monitor_manager_constructed (GObject *object)
{
MetaMonitorManager *manager = META_MONITOR_MANAGER (object);
MetaMonitorManagerPrivate *priv =
meta_monitor_manager_get_instance_private (manager);
MetaBackend *backend = manager->backend;
MetaContext *context = meta_backend_get_context (backend);
MetaSettings *settings = meta_backend_get_settings (backend);
manager->display_config = meta_dbus_display_config_skeleton_new ();
if (g_strcmp0 (getenv ("MUTTER_DEBUG_ENABLE_HDR"), "1") == 0)
priv->experimental_hdr = g_strdup ("on");
g_signal_connect_object (settings,
"experimental-features-changed",
G_CALLBACK (experimental_features_changed),
manager, 0);
g_signal_connect_object (settings,
"privacy-screen-changed",
G_CALLBACK (apply_privacy_screen_settings),
manager, G_CONNECT_SWAPPED);
monitor_manager_setup_dbus_config_handlers (manager);
g_signal_connect_object (manager->display_config, "notify::power-save-mode",
G_CALLBACK (power_save_mode_changed), manager,
G_CONNECT_SWAPPED);
g_signal_connect_object (meta_backend_get_orientation_manager (backend),
"orientation-changed",
G_CALLBACK (orientation_changed),
manager, 0);
g_signal_connect_object (meta_backend_get_orientation_manager (backend),
"notify::has-accelerometer",
G_CALLBACK (update_panel_orientation_managed), manager,
G_CONNECT_SWAPPED);
g_signal_connect_object (backend,
"lid-is-closed-changed",
G_CALLBACK (lid_is_closed_changed),
manager, 0);
g_signal_connect (context, "started", G_CALLBACK (on_started), manager);
Introduce virtual monitors Virtual monitors are monitors that isn't backed by any monitor like hardware. It would typically be backed by e.g. a remote desktop service, or a network display. It is currently only supported by the native backend, and whether the X11 backend will ever see virtual monitors is an open question. This rest of this commit message describes how it works under the native backend. Each virutal monitor consists of virtualized mode setting components: * A virtual CRTC mode (MetaCrtcModeVirtual) * A virtual CRTC (MetaCrtcVirtual) * A virtual connector (MetaOutputVirtual) In difference to the corresponding mode setting objects that represents KMS objects, the virtual ones isn't directly tied to a MetaGpu, other than the CoglFramebuffer being part of the GPU context of the primary GPU, which is the case for all monitors no matter what GPU they are connected to. Part of the reason for this is that a MetaGpu in practice represents a mode setting device, and its CRTCs and outputs, are all backed by real mode setting objects, while a virtual monitor is only backed by a framebuffer that is tied to the primary GPU. Maybe this will be reevaluated in the future, but since a virtual monitor is not tied to any GPU currently, so is the case for the virtual mode setting objects. The native rendering backend, including the cursor renderer, is adapted to handle the situation where a CRTC does not have a GPU associated with it; this in practice means that it e.g. will not try to upload HW cursor buffers when the cursor is only on a virtual monitor. The same applies to the native renderer, which is made to avoid creating MetaOnscreenNative for views that are backed by virtual CRTCs, as well as to avoid trying to mode set on such views. Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1698>
2021-01-26 10:49:28 -05:00
g_signal_connect (backend, "prepare-shutdown",
G_CALLBACK (prepare_shutdown),
manager);
manager->current_switch_config = META_MONITOR_SWITCH_CONFIG_UNKNOWN;
initialize_dbus_interface (manager);
}
static void
meta_monitor_manager_finalize (GObject *object)
{
MetaMonitorManager *manager = META_MONITOR_MANAGER (object);
Introduce virtual monitors Virtual monitors are monitors that isn't backed by any monitor like hardware. It would typically be backed by e.g. a remote desktop service, or a network display. It is currently only supported by the native backend, and whether the X11 backend will ever see virtual monitors is an open question. This rest of this commit message describes how it works under the native backend. Each virutal monitor consists of virtualized mode setting components: * A virtual CRTC mode (MetaCrtcModeVirtual) * A virtual CRTC (MetaCrtcVirtual) * A virtual connector (MetaOutputVirtual) In difference to the corresponding mode setting objects that represents KMS objects, the virtual ones isn't directly tied to a MetaGpu, other than the CoglFramebuffer being part of the GPU context of the primary GPU, which is the case for all monitors no matter what GPU they are connected to. Part of the reason for this is that a MetaGpu in practice represents a mode setting device, and its CRTCs and outputs, are all backed by real mode setting objects, while a virtual monitor is only backed by a framebuffer that is tied to the primary GPU. Maybe this will be reevaluated in the future, but since a virtual monitor is not tied to any GPU currently, so is the case for the virtual mode setting objects. The native rendering backend, including the cursor renderer, is adapted to handle the situation where a CRTC does not have a GPU associated with it; this in practice means that it e.g. will not try to upload HW cursor buffers when the cursor is only on a virtual monitor. The same applies to the native renderer, which is made to avoid creating MetaOnscreenNative for views that are backed by virtual CRTCs, as well as to avoid trying to mode set on such views. Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1698>
2021-01-26 10:49:28 -05:00
MetaMonitorManagerPrivate *priv =
meta_monitor_manager_get_instance_private (manager);
g_clear_pointer (&priv->experimental_hdr, g_free);
g_list_free_full (manager->logical_monitors, g_object_unref);
Introduce virtual monitors Virtual monitors are monitors that isn't backed by any monitor like hardware. It would typically be backed by e.g. a remote desktop service, or a network display. It is currently only supported by the native backend, and whether the X11 backend will ever see virtual monitors is an open question. This rest of this commit message describes how it works under the native backend. Each virutal monitor consists of virtualized mode setting components: * A virtual CRTC mode (MetaCrtcModeVirtual) * A virtual CRTC (MetaCrtcVirtual) * A virtual connector (MetaOutputVirtual) In difference to the corresponding mode setting objects that represents KMS objects, the virtual ones isn't directly tied to a MetaGpu, other than the CoglFramebuffer being part of the GPU context of the primary GPU, which is the case for all monitors no matter what GPU they are connected to. Part of the reason for this is that a MetaGpu in practice represents a mode setting device, and its CRTCs and outputs, are all backed by real mode setting objects, while a virtual monitor is only backed by a framebuffer that is tied to the primary GPU. Maybe this will be reevaluated in the future, but since a virtual monitor is not tied to any GPU currently, so is the case for the virtual mode setting objects. The native rendering backend, including the cursor renderer, is adapted to handle the situation where a CRTC does not have a GPU associated with it; this in practice means that it e.g. will not try to upload HW cursor buffers when the cursor is only on a virtual monitor. The same applies to the native renderer, which is made to avoid creating MetaOnscreenNative for views that are backed by virtual CRTCs, as well as to avoid trying to mode set on such views. Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1698>
2021-01-26 10:49:28 -05:00
g_warn_if_fail (!priv->virtual_monitors);
G_OBJECT_CLASS (meta_monitor_manager_parent_class)->finalize (object);
}
static void
meta_monitor_manager_dispose (GObject *object)
{
MetaMonitorManager *manager = META_MONITOR_MANAGER (object);
MetaMonitorManagerPrivate *priv =
meta_monitor_manager_get_instance_private (manager);
g_clear_handle_id (&manager->dbus_name_id, g_bus_unown_name);
g_clear_object (&manager->display_config);
g_clear_object (&manager->config_manager);
g_clear_handle_id (&manager->persistent_timeout_id, g_source_remove);
monitor-manager: Restore old config in idle callback when unconfirmed We might get told to restore the old monitor configuration by the monitor configuration prompt, in case the user pressed "revert" or equivalent. This might be in response to a button press, and those happen during frame clock dispatch. If we would restore an old configuration during dispatch, it means we would reconfigure the monitors including their stage views while dispatching, which means we'd destroy the frame clock while it's dispatching. Doing that causes problems, as the frame clock isn't expecting to be destroyed mid-function. Specifically, We'd enter clutter_frame_clock_dispatch (clutter-frame-clock.c:811) frame_clock_source_dispatch (clutter-frame-clock.c:839) g_main_dispatch (gmain.c:3454) g_main_context_dispatch (gmain.c:4172) g_main_context_iterate.constprop.0 (gmain.c:4248) g_main_loop_run (gmain.c:4448) meta_context_run_main_loop (meta-context.c:482) main (main.c:663) which would first call _clutter_process_event (clutter-main.c:920) _clutter_stage_process_queued_events (clutter-stage.c:757) handle_frame_clock_before_frame (clutter-stage-view.c:1150) which would emit e.g. a button event all the way to a button press handler, which would e.g. deny the new configuration: restore_previous_config (meta-monitor-manager.c:1931) confirm_configuration (meta-monitor-manager.c:2866) meta_monitor_manager_confirm_configuration (meta-monitor-manager.c:2880) meta_plugin_complete_display_change (meta-plugin.c:172) That would then regenerate the monitor configuration and stage view layout, which would destroy the old stage view and frame clock. meta_stage_native_rebuild_views (meta-stage-native.c:68) meta_backend_native_update_screen_size (meta-backend-native.c:457) meta_backend_sync_screen_size (meta-backend.c:266) meta_backend_monitors_changed (meta-backend.c:337) meta_monitor_manager_notify_monitors_changed (meta-monitor-manager.c:3595) meta_monitor_manager_rebuild (meta-monitor-manager.c:3683) meta_monitor_manager_native_apply_monitors_config (meta-monitor-manager-native.c:343) meta_monitor_manager_apply_monitors_config (meta-monitor-manager.c:704) After returning back to the original clutter_frame_clock_dispatch() frame, various state in the frame clock will be gone and we'd crash. Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2901>
2023-03-06 18:06:30 -05:00
g_clear_handle_id (&manager->restore_config_id, g_source_remove);
g_clear_handle_id (&priv->switch_config_handle_id, g_source_remove);
g_clear_handle_id (&priv->reload_monitor_manager_id, g_source_remove);
G_OBJECT_CLASS (meta_monitor_manager_parent_class)->dispose (object);
}
static GBytes *
meta_monitor_manager_real_read_edid (MetaMonitorManager *manager,
MetaOutput *output)
{
return NULL;
}
static void
meta_monitor_manager_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
MetaMonitorManager *manager = META_MONITOR_MANAGER (object);
MetaMonitorManagerPrivate *priv =
meta_monitor_manager_get_instance_private (manager);
switch (prop_id)
{
case PROP_BACKEND:
manager->backend = g_value_get_object (value);
break;
case PROP_EXPERIMENTAL_HDR:
g_clear_pointer (&priv->experimental_hdr, g_free);
priv->experimental_hdr = g_value_dup_string (value);
break;
case PROP_PANEL_ORIENTATION_MANAGED:
case PROP_HAS_BUILTIN_PANEL:
case PROP_NIGHT_LIGHT_SUPPORTED:
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
}
}
static void
meta_monitor_manager_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
MetaMonitorManager *manager = META_MONITOR_MANAGER (object);
MetaMonitorManagerPrivate *priv =
meta_monitor_manager_get_instance_private (manager);
switch (prop_id)
{
case PROP_BACKEND:
g_value_set_object (value, manager->backend);
break;
case PROP_PANEL_ORIENTATION_MANAGED:
g_value_set_boolean (value, manager->panel_orientation_managed);
break;
case PROP_HAS_BUILTIN_PANEL:
g_value_set_boolean (value, priv->has_builtin_panel);
break;
case PROP_NIGHT_LIGHT_SUPPORTED:
g_value_set_boolean (value, priv->night_light_supported);
break;
case PROP_EXPERIMENTAL_HDR:
g_value_set_string (value, priv->experimental_hdr);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
}
}
static void
meta_monitor_manager_class_init (MetaMonitorManagerClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->constructed = meta_monitor_manager_constructed;
object_class->dispose = meta_monitor_manager_dispose;
object_class->finalize = meta_monitor_manager_finalize;
object_class->get_property = meta_monitor_manager_get_property;
object_class->set_property = meta_monitor_manager_set_property;
klass->read_edid = meta_monitor_manager_real_read_edid;
klass->read_current_state = meta_monitor_manager_real_read_current_state;
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);
signals[MONITORS_CHANGED_INTERNAL] =
g_signal_new ("monitors-changed-internal",
G_TYPE_FROM_CLASS (object_class),
G_SIGNAL_RUN_LAST,
0,
NULL, NULL, NULL,
G_TYPE_NONE, 0);
signals[POWER_SAVE_MODE_CHANGED] =
g_signal_new ("power-save-mode-changed",
G_TYPE_FROM_CLASS (object_class),
G_SIGNAL_RUN_LAST,
0,
NULL, NULL, NULL,
G_TYPE_NONE, 1,
META_TYPE_POWER_SAVE_CHANGE_REASON);
signals[CONFIRM_DISPLAY_CHANGE] =
g_signal_new ("confirm-display-change",
G_TYPE_FROM_CLASS (object_class),
G_SIGNAL_RUN_LAST,
0,
NULL, NULL, NULL,
G_TYPE_NONE, 0);
/**
* MetaMonitorManager::monitor-privacy-screen-changed: (skip)
* @monitor_manager: The #MetaMonitorManager
* @logical_monitor: The #MetaLogicalMonitor where the privacy screen state
* changed
* @enabled: %TRUE if the privacy screen was enabled, otherwise %FALSE
*/
signals[MONITOR_PRIVACY_SCREEN_CHANGED] =
g_signal_new ("monitor-privacy-screen-changed",
G_TYPE_FROM_CLASS (object_class),
G_SIGNAL_RUN_LAST,
0,
NULL, NULL, NULL,
G_TYPE_NONE, 2, META_TYPE_LOGICAL_MONITOR, G_TYPE_BOOLEAN);
obj_props[PROP_BACKEND] =
g_param_spec_object ("backend", NULL, NULL,
META_TYPE_BACKEND,
G_PARAM_READWRITE |
G_PARAM_CONSTRUCT_ONLY |
G_PARAM_STATIC_STRINGS);
obj_props[PROP_PANEL_ORIENTATION_MANAGED] =
g_param_spec_boolean ("panel-orientation-managed", NULL, NULL,
FALSE,
G_PARAM_READABLE |
G_PARAM_EXPLICIT_NOTIFY |
G_PARAM_STATIC_STRINGS);
obj_props[PROP_HAS_BUILTIN_PANEL] =
g_param_spec_boolean ("has-builtin-panel", NULL, NULL,
FALSE,
G_PARAM_READABLE |
G_PARAM_EXPLICIT_NOTIFY |
G_PARAM_STATIC_STRINGS);
obj_props[PROP_NIGHT_LIGHT_SUPPORTED] =
g_param_spec_boolean ("night-light-supported", NULL, NULL,
FALSE,
G_PARAM_READABLE |
G_PARAM_EXPLICIT_NOTIFY |
G_PARAM_STATIC_STRINGS);
obj_props[PROP_EXPERIMENTAL_HDR] =
g_param_spec_string ("experimental-hdr", NULL, NULL,
NULL,
G_PARAM_READWRITE |
G_PARAM_STATIC_STRINGS);
g_object_class_install_properties (object_class, PROP_LAST, obj_props);
}
gboolean
meta_monitor_has_aspect_as_size (MetaMonitor *monitor)
{
int width_mm;
int height_mm;
meta_monitor_get_physical_dimensions (monitor, &width_mm, &height_mm);
return (width_mm == 1600 && height_mm == 900) ||
(width_mm == 1600 && height_mm == 1000) ||
(width_mm == 160 && height_mm == 90) ||
(width_mm == 160 && height_mm == 100) ||
(width_mm == 16 && height_mm == 9) ||
(width_mm == 16 && height_mm == 10);
}
static const char *
get_connector_type_name (MetaConnectorType connector_type)
{
switch (connector_type)
{
case META_CONNECTOR_TYPE_Unknown: return "Unknown";
case META_CONNECTOR_TYPE_VGA: return "VGA";
case META_CONNECTOR_TYPE_DVII: return "DVII";
case META_CONNECTOR_TYPE_DVID: return "DVID";
case META_CONNECTOR_TYPE_DVIA: return "DVIA";
case META_CONNECTOR_TYPE_Composite: return "Composite";
case META_CONNECTOR_TYPE_SVIDEO: return "SVIDEO";
case META_CONNECTOR_TYPE_LVDS: return "LVDS";
case META_CONNECTOR_TYPE_Component: return "Component";
case META_CONNECTOR_TYPE_9PinDIN: return "9PinDIN";
case META_CONNECTOR_TYPE_DisplayPort: return "DisplayPort";
case META_CONNECTOR_TYPE_HDMIA: return "HDMIA";
case META_CONNECTOR_TYPE_HDMIB: return "HDMIB";
case META_CONNECTOR_TYPE_TV: return "TV";
case META_CONNECTOR_TYPE_eDP: return "eDP";
case META_CONNECTOR_TYPE_VIRTUAL: return "VIRTUAL";
case META_CONNECTOR_TYPE_DSI: return "DSI";
case META_CONNECTOR_TYPE_DPI: return "DPI";
case META_CONNECTOR_TYPE_WRITEBACK: return "WRITEBACK";
case META_CONNECTOR_TYPE_SPI: return "SPI";
case META_CONNECTOR_TYPE_USB: return "USB";
default: g_assert_not_reached ();
}
return NULL;
}
static GList *
combine_gpu_lists (MetaMonitorManager *manager,
GList * (*list_getter) (MetaGpu *gpu))
{
GList *gpus;
GList *list = NULL;
GList *l;
gpus = meta_backend_get_gpus (manager->backend);
for (l = gpus; l; l = l->next)
{
MetaGpu *gpu = l->data;
list = g_list_concat (list, g_list_copy (list_getter (gpu)));
}
return list;
}
static void
emit_privacy_screen_change (MetaMonitorManager *manager)
{
GList *l;
for (l = manager->monitors; l; l = l->next)
{
MetaMonitor *monitor = l->data;
MetaPrivacyScreenState privacy_screen_state;
gboolean enabled;
if (!meta_monitor_is_active (monitor))
continue;
privacy_screen_state = meta_monitor_get_privacy_screen_state (monitor);
if (privacy_screen_state == META_PRIVACY_SCREEN_UNAVAILABLE)
continue;
enabled = !!(privacy_screen_state & META_PRIVACY_SCREEN_ENABLED);
g_signal_emit (manager, signals[MONITOR_PRIVACY_SCREEN_CHANGED], 0,
meta_monitor_get_logical_monitor (monitor), enabled);
}
}
void
meta_monitor_manager_maybe_emit_privacy_screen_change (MetaMonitorManager *manager)
{
MetaPrivacyScreenChangeState reason = manager->privacy_screen_change_state;
if (reason == META_PRIVACY_SCREEN_CHANGE_STATE_NONE ||
reason == META_PRIVACY_SCREEN_CHANGE_STATE_INIT)
return;
if (reason == META_PRIVACY_SCREEN_CHANGE_STATE_PENDING_HOTKEY)
emit_privacy_screen_change (manager);
if (reason != META_PRIVACY_SCREEN_CHANGE_STATE_PENDING_SETTING)
{
MetaSettings *settings = meta_backend_get_settings (manager->backend);
meta_settings_set_privacy_screen_enabled (settings,
get_global_privacy_screen_state (manager) ==
META_PRIVACY_SCREEN_ENABLED);
}
meta_dbus_display_config_emit_monitors_changed (manager->display_config);
manager->privacy_screen_change_state = META_PRIVACY_SCREEN_CHANGE_STATE_NONE;
}
static gboolean
meta_monitor_manager_handle_get_resources (MetaDBusDisplayConfig *skeleton,
GDBusMethodInvocation *invocation,
MetaMonitorManager *manager)
{
MetaMonitorManagerClass *manager_class = META_MONITOR_MANAGER_GET_CLASS (manager);
GList *combined_modes;
GList *combined_outputs;
GList *combined_crtcs;
GVariantBuilder crtc_builder, output_builder, mode_builder;
GList *l;
unsigned int i, j;
int max_screen_width;
int max_screen_height;
combined_modes = combine_gpu_lists (manager, meta_gpu_get_modes);
combined_outputs = combine_gpu_lists (manager, meta_gpu_get_outputs);
combined_crtcs = combine_gpu_lists (manager, meta_gpu_get_crtcs);
g_variant_builder_init (&crtc_builder, G_VARIANT_TYPE ("a(uxiiiiiuaua{sv})"));
g_variant_builder_init (&output_builder, G_VARIANT_TYPE ("a(uxiausauaua{sv})"));
g_variant_builder_init (&mode_builder, G_VARIANT_TYPE ("a(uxuudu)"));
for (l = combined_crtcs, i = 0; l; l = l->next, i++)
{
MetaCrtc *crtc = l->data;
GVariantBuilder transforms;
const MetaCrtcConfig *crtc_config;
g_variant_builder_init (&transforms, G_VARIANT_TYPE ("au"));
for (j = 0; j <= META_MONITOR_TRANSFORM_FLIPPED_270; j++)
{
if (meta_crtc_get_all_transforms (crtc) & (1 << j))
g_variant_builder_add (&transforms, "u", j);
}
crtc_config = meta_crtc_get_config (crtc);
if (crtc_config)
{
int current_mode_index;
current_mode_index = g_list_index (combined_modes, crtc_config->mode);
g_variant_builder_add (&crtc_builder, "(uxiiiiiuaua{sv})",
i, /* ID */
(int64_t) meta_crtc_get_id (crtc),
(int) roundf (crtc_config->layout.origin.x),
(int) roundf (crtc_config->layout.origin.y),
(int) roundf (crtc_config->layout.size.width),
(int) roundf (crtc_config->layout.size.height),
current_mode_index,
(uint32_t) crtc_config->transform,
&transforms,
NULL /* properties */);
}
else
{
g_variant_builder_add (&crtc_builder, "(uxiiiiiuaua{sv})",
i, /* ID */
(int64_t) meta_crtc_get_id (crtc),
0,
0,
0,
0,
-1,
(uint32_t) META_MONITOR_TRANSFORM_NORMAL,
&transforms,
NULL /* properties */);
}
}
for (l = combined_outputs, i = 0; l; l = l->next, i++)
{
MetaOutput *output = l->data;
const MetaOutputInfo *output_info = meta_output_get_info (output);
GVariantBuilder crtcs, modes, clones, properties;
GBytes *edid;
MetaCrtc *crtc;
int crtc_index;
int backlight;
int min_backlight_step;
gboolean is_primary;
gboolean is_presentation;
const char * connector_type_name;
gboolean is_underscanning;
gboolean supports_underscanning;
gboolean supports_color_transform;
const char *vendor;
const char *product;
const char *serial;
g_variant_builder_init (&crtcs, G_VARIANT_TYPE ("au"));
for (j = 0; j < output_info->n_possible_crtcs; j++)
{
MetaCrtc *possible_crtc = output_info->possible_crtcs[j];
unsigned possible_crtc_index;
possible_crtc_index = g_list_index (combined_crtcs, possible_crtc);
g_variant_builder_add (&crtcs, "u", possible_crtc_index);
}
g_variant_builder_init (&modes, G_VARIANT_TYPE ("au"));
for (j = 0; j < output_info->n_modes; j++)
{
unsigned mode_index;
mode_index = g_list_index (combined_modes, output_info->modes[j]);
g_variant_builder_add (&modes, "u", mode_index);
}
g_variant_builder_init (&clones, G_VARIANT_TYPE ("au"));
for (j = 0; j < output_info->n_possible_clones; j++)
{
unsigned int possible_clone_index;
possible_clone_index = g_list_index (combined_outputs,
output_info->possible_clones[j]);
g_variant_builder_add (&clones, "u", possible_clone_index);
}
backlight = meta_output_get_backlight (output);
min_backlight_step =
output_info->backlight_max - output_info->backlight_min
? 100 / (output_info->backlight_max - output_info->backlight_min)
: -1;
is_primary = meta_output_is_primary (output);
is_presentation = meta_output_is_presentation (output);
is_underscanning = meta_output_is_underscanning (output);
connector_type_name = get_connector_type_name (output_info->connector_type);
supports_underscanning = output_info->supports_underscanning;
supports_color_transform = output_info->supports_color_transform;
vendor = output_info->vendor;
product = output_info->product;
serial = output_info->serial;
g_variant_builder_init (&properties, G_VARIANT_TYPE ("a{sv}"));
g_variant_builder_add (&properties, "{sv}", "vendor",
g_variant_new_string (vendor ? vendor : "unknown"));
g_variant_builder_add (&properties, "{sv}", "product",
g_variant_new_string (product ? product : "unknown"));
g_variant_builder_add (&properties, "{sv}", "serial",
g_variant_new_string (serial ? serial : "unknown"));
g_variant_builder_add (&properties, "{sv}", "width-mm",
g_variant_new_int32 (output_info->width_mm));
g_variant_builder_add (&properties, "{sv}", "height-mm",
g_variant_new_int32 (output_info->height_mm));
g_variant_builder_add (&properties, "{sv}", "display-name",
g_variant_new_string (output_info->name));
g_variant_builder_add (&properties, "{sv}", "backlight",
g_variant_new_int32 (backlight));
g_variant_builder_add (&properties, "{sv}", "min-backlight-step",
g_variant_new_int32 (min_backlight_step));
g_variant_builder_add (&properties, "{sv}", "primary",
g_variant_new_boolean (is_primary));
g_variant_builder_add (&properties, "{sv}", "presentation",
g_variant_new_boolean (is_presentation));
g_variant_builder_add (&properties, "{sv}", "connector-type",
g_variant_new_string (connector_type_name));
g_variant_builder_add (&properties, "{sv}", "underscanning",
g_variant_new_boolean (is_underscanning));
g_variant_builder_add (&properties, "{sv}", "supports-underscanning",
g_variant_new_boolean (supports_underscanning));
g_variant_builder_add (&properties, "{sv}", "supports-color-transform",
g_variant_new_boolean (supports_color_transform));
edid = manager_class->read_edid (manager, output);
if (edid)
{
g_variant_builder_add (&properties, "{sv}", "edid",
g_variant_new_from_bytes (G_VARIANT_TYPE ("ay"),
edid, TRUE));
g_bytes_unref (edid);
}
if (output_info->tile_info.group_id)
{
GVariant *tile_variant;
tile_variant = g_variant_new ("(uuuuuuuu)",
output_info->tile_info.group_id,
output_info->tile_info.flags,
output_info->tile_info.max_h_tiles,
output_info->tile_info.max_v_tiles,
output_info->tile_info.loc_h_tile,
output_info->tile_info.loc_v_tile,
output_info->tile_info.tile_w,
output_info->tile_info.tile_h);
g_variant_builder_add (&properties, "{sv}", "tile", tile_variant);
}
crtc = meta_output_get_assigned_crtc (output);
crtc_index = crtc ? g_list_index (combined_crtcs, crtc) : -1;
g_variant_builder_add (&output_builder, "(uxiausauaua{sv})",
i, /* ID */
meta_output_get_id (output),
crtc_index,
&crtcs,
meta_output_get_name (output),
&modes,
&clones,
&properties);
}
for (l = combined_modes, i = 0; l; l = l->next, i++)
{
MetaCrtcMode *mode = l->data;
const MetaCrtcModeInfo *crtc_mode_info =
meta_crtc_mode_get_info (mode);
g_variant_builder_add (&mode_builder, "(uxuudu)",
i, /* ID */
(int64_t) meta_crtc_mode_get_id (mode),
(uint32_t) crtc_mode_info->width,
(uint32_t) crtc_mode_info->height,
(double) crtc_mode_info->refresh_rate,
(uint32_t) crtc_mode_info->flags);
}
if (!meta_monitor_manager_get_max_screen_size (manager,
&max_screen_width,
&max_screen_height))
{
/* No max screen size, just send something large */
max_screen_width = 65535;
max_screen_height = 65535;
}
meta_dbus_display_config_complete_get_resources (skeleton,
invocation,
manager->serial,
g_variant_builder_end (&crtc_builder),
g_variant_builder_end (&output_builder),
g_variant_builder_end (&mode_builder),
max_screen_width,
max_screen_height);
g_list_free (combined_modes);
g_list_free (combined_outputs);
g_list_free (combined_crtcs);
return TRUE;
}
static void
restore_previous_config (MetaMonitorManager *manager)
{
MetaMonitorsConfig *previous_config;
GError *error = NULL;
previous_config =
meta_monitor_config_manager_pop_previous (manager->config_manager);
if (previous_config)
{
MetaMonitorsConfigMethod method;
if (manager->panel_orientation_managed)
{
g_autoptr (MetaMonitorsConfig) oriented_config = NULL;
oriented_config =
meta_monitor_config_manager_create_for_builtin_orientation (
manager->config_manager, previous_config);
if (oriented_config)
g_set_object (&previous_config, oriented_config);
}
method = META_MONITORS_CONFIG_METHOD_TEMPORARY;
if (meta_monitor_manager_apply_monitors_config (manager,
previous_config,
method,
&error))
{
g_object_unref (previous_config);
return;
}
else
{
g_object_unref (previous_config);
g_warning ("Failed to restore previous configuration: %s",
error->message);
g_error_free (error);
}
}
meta_monitor_manager_ensure_configured (manager);
}
int
meta_monitor_manager_get_display_configuration_timeout (MetaMonitorManager *manager)
{
return DEFAULT_DISPLAY_CONFIGURATION_TIMEOUT;
}
static gboolean
save_config_timeout (gpointer user_data)
{
MetaMonitorManager *manager = user_data;
restore_previous_config (manager);
manager->persistent_timeout_id = 0;
return G_SOURCE_REMOVE;
}
static void
request_persistent_confirmation (MetaMonitorManager *manager)
{
int timeout_s;
timeout_s = meta_monitor_manager_get_display_configuration_timeout (manager);
manager->persistent_timeout_id = g_timeout_add_seconds (timeout_s,
save_config_timeout,
manager);
g_source_set_name_by_id (manager->persistent_timeout_id,
"[mutter] save_config_timeout");
g_signal_emit (manager, signals[CONFIRM_DISPLAY_CHANGE], 0);
}
#define META_DISPLAY_CONFIG_MODE_FLAGS_PREFERRED (1 << 0)
#define META_DISPLAY_CONFIG_MODE_FLAGS_CURRENT (1 << 1)
#define MODE_FORMAT "(siiddada{sv})"
#define MODES_FORMAT "a" MODE_FORMAT
#define MONITOR_SPEC_FORMAT "(ssss)"
#define MONITOR_FORMAT "(" MONITOR_SPEC_FORMAT MODES_FORMAT "a{sv})"
#define MONITORS_FORMAT "a" MONITOR_FORMAT
#define LOGICAL_MONITOR_MONITORS_FORMAT "a" MONITOR_SPEC_FORMAT
#define LOGICAL_MONITOR_FORMAT "(iidub" LOGICAL_MONITOR_MONITORS_FORMAT "a{sv})"
#define LOGICAL_MONITORS_FORMAT "a" LOGICAL_MONITOR_FORMAT
static gboolean
meta_monitor_manager_handle_get_current_state (MetaDBusDisplayConfig *skeleton,
GDBusMethodInvocation *invocation,
MetaMonitorManager *manager)
{
MetaSettings *settings = meta_backend_get_settings (manager->backend);
GVariantBuilder monitors_builder;
GVariantBuilder logical_monitors_builder;
GVariantBuilder properties_builder;
GList *l;
int i;
MetaMonitorManagerCapability capabilities;
int ui_scaling_factor;
int max_screen_width, max_screen_height;
g_variant_builder_init (&monitors_builder,
G_VARIANT_TYPE (MONITORS_FORMAT));
g_variant_builder_init (&logical_monitors_builder,
G_VARIANT_TYPE (LOGICAL_MONITORS_FORMAT));
for (l = manager->monitors; l; l = l->next)
{
MetaMonitor *monitor = l->data;
MetaMonitorSpec *monitor_spec = meta_monitor_get_spec (monitor);
MetaMonitorMode *current_mode;
MetaMonitorMode *preferred_mode;
MetaPrivacyScreenState privacy_screen_state;
GVariantBuilder modes_builder;
GVariantBuilder monitor_properties_builder;
GList *k;
gboolean is_builtin;
const char *display_name;
current_mode = meta_monitor_get_current_mode (monitor);
preferred_mode = meta_monitor_get_preferred_mode (monitor);
g_variant_builder_init (&modes_builder, G_VARIANT_TYPE (MODES_FORMAT));
for (k = meta_monitor_get_modes (monitor); k; k = k->next)
{
MetaMonitorMode *monitor_mode = k->data;
GVariantBuilder supported_scales_builder;
const char *mode_id;
int mode_width, mode_height;
float refresh_rate;
float preferred_scale;
float *supported_scales;
int n_supported_scales;
GVariantBuilder mode_properties_builder;
MetaCrtcModeFlag mode_flags;
if (!meta_monitor_mode_should_be_advertised (monitor_mode))
continue;
mode_id = meta_monitor_mode_get_id (monitor_mode);
meta_monitor_mode_get_resolution (monitor_mode,
&mode_width, &mode_height);
refresh_rate = meta_monitor_mode_get_refresh_rate (monitor_mode);
preferred_scale =
meta_monitor_manager_calculate_monitor_mode_scale (manager,
manager->layout_mode,
monitor,
monitor_mode);
g_variant_builder_init (&supported_scales_builder,
G_VARIANT_TYPE ("ad"));
supported_scales =
meta_monitor_manager_calculate_supported_scales (manager,
manager->layout_mode,
monitor,
monitor_mode,
&n_supported_scales);
for (i = 0; i < n_supported_scales; i++)
g_variant_builder_add (&supported_scales_builder, "d",
(double) supported_scales[i]);
g_free (supported_scales);
mode_flags = meta_monitor_mode_get_flags (monitor_mode);
g_variant_builder_init (&mode_properties_builder,
G_VARIANT_TYPE ("a{sv}"));
if (monitor_mode == current_mode)
g_variant_builder_add (&mode_properties_builder, "{sv}",
"is-current",
g_variant_new_boolean (TRUE));
if (monitor_mode == preferred_mode)
g_variant_builder_add (&mode_properties_builder, "{sv}",
"is-preferred",
g_variant_new_boolean (TRUE));
if (mode_flags & META_CRTC_MODE_FLAG_INTERLACE)
g_variant_builder_add (&mode_properties_builder, "{sv}",
"is-interlaced",
g_variant_new_boolean (TRUE));
g_variant_builder_add (&modes_builder, MODE_FORMAT,
mode_id,
mode_width,
mode_height,
refresh_rate,
(double) preferred_scale,
&supported_scales_builder,
&mode_properties_builder);
}
g_variant_builder_init (&monitor_properties_builder,
G_VARIANT_TYPE ("a{sv}"));
if (meta_monitor_supports_underscanning (monitor))
{
gboolean is_underscanning = meta_monitor_is_underscanning (monitor);
g_variant_builder_add (&monitor_properties_builder, "{sv}",
"is-underscanning",
g_variant_new_boolean (is_underscanning));
}
is_builtin = meta_monitor_is_laptop_panel (monitor);
g_variant_builder_add (&monitor_properties_builder, "{sv}",
"is-builtin",
g_variant_new_boolean (is_builtin));
display_name = meta_monitor_get_display_name (monitor);
g_variant_builder_add (&monitor_properties_builder, "{sv}",
"display-name",
g_variant_new_string (display_name));
privacy_screen_state = meta_monitor_get_privacy_screen_state (monitor);
if (privacy_screen_state != META_PRIVACY_SCREEN_UNAVAILABLE)
{
GVariant *state;
state = g_variant_new ("(bb)",
!!(privacy_screen_state & META_PRIVACY_SCREEN_ENABLED),
!!(privacy_screen_state & META_PRIVACY_SCREEN_LOCKED));
g_variant_builder_add (&monitor_properties_builder, "{sv}",
"privacy-screen-state", state);
}
g_variant_builder_add (&monitors_builder, MONITOR_FORMAT,
monitor_spec->connector,
monitor_spec->vendor,
monitor_spec->product,
monitor_spec->serial,
&modes_builder,
&monitor_properties_builder);
}
for (l = manager->logical_monitors; l; l = l->next)
{
MetaLogicalMonitor *logical_monitor = l->data;
GVariantBuilder logical_monitor_monitors_builder;
GList *k;
g_variant_builder_init (&logical_monitor_monitors_builder,
G_VARIANT_TYPE (LOGICAL_MONITOR_MONITORS_FORMAT));
for (k = logical_monitor->monitors; k; k = k->next)
{
MetaMonitor *monitor = k->data;
MetaMonitorSpec *monitor_spec = meta_monitor_get_spec (monitor);
g_variant_builder_add (&logical_monitor_monitors_builder,
MONITOR_SPEC_FORMAT,
monitor_spec->connector,
monitor_spec->vendor,
monitor_spec->product,
monitor_spec->serial);
}
g_variant_builder_add (&logical_monitors_builder,
LOGICAL_MONITOR_FORMAT,
logical_monitor->rect.x,
logical_monitor->rect.y,
(double) logical_monitor->scale,
logical_monitor->transform,
logical_monitor->is_primary,
&logical_monitor_monitors_builder,
NULL);
}
g_variant_builder_init (&properties_builder, G_VARIANT_TYPE ("a{sv}"));
capabilities = meta_monitor_manager_get_capabilities (manager);
g_variant_builder_add (&properties_builder, "{sv}",
"layout-mode",
g_variant_new_uint32 (manager->layout_mode));
if (capabilities & META_MONITOR_MANAGER_CAPABILITY_LAYOUT_MODE)
{
g_variant_builder_add (&properties_builder, "{sv}",
"supports-changing-layout-mode",
g_variant_new_boolean (TRUE));
}
if (capabilities & META_MONITOR_MANAGER_CAPABILITY_GLOBAL_SCALE_REQUIRED)
{
g_variant_builder_add (&properties_builder, "{sv}",
"global-scale-required",
g_variant_new_boolean (TRUE));
}
ui_scaling_factor = meta_settings_get_ui_scaling_factor (settings);
g_variant_builder_add (&properties_builder, "{sv}",
"legacy-ui-scaling-factor",
g_variant_new_int32 (ui_scaling_factor));
if (meta_monitor_manager_get_max_screen_size (manager,
&max_screen_width,
&max_screen_height))
{
GVariantBuilder max_screen_size_builder;
g_variant_builder_init (&max_screen_size_builder,
G_VARIANT_TYPE ("(ii)"));
g_variant_builder_add (&max_screen_size_builder, "i",
max_screen_width);
g_variant_builder_add (&max_screen_size_builder, "i",
max_screen_height);
g_variant_builder_add (&properties_builder, "{sv}",
"max-screen-size",
g_variant_builder_end (&max_screen_size_builder));
}
meta_dbus_display_config_complete_get_current_state (
skeleton,
invocation,
manager->serial,
g_variant_builder_end (&monitors_builder),
g_variant_builder_end (&logical_monitors_builder),
g_variant_builder_end (&properties_builder));
return TRUE;
}
#undef MODE_FORMAT
#undef MODES_FORMAT
#undef MONITOR_SPEC_FORMAT
#undef MONITOR_FORMAT
#undef MONITORS_FORMAT
#undef LOGICAL_MONITOR_MONITORS_FORMAT
#undef LOGICAL_MONITOR_FORMAT
#undef LOGICAL_MONITORS_FORMAT
gboolean
meta_monitor_manager_is_scale_supported (MetaMonitorManager *manager,
MetaLogicalMonitorLayoutMode layout_mode,
MetaMonitor *monitor,
MetaMonitorMode *monitor_mode,
float scale)
{
g_autofree float *supported_scales = NULL;
int n_supported_scales;
int i;
supported_scales =
meta_monitor_manager_calculate_supported_scales (manager,
layout_mode,
monitor,
monitor_mode,
&n_supported_scales);
for (i = 0; i < n_supported_scales; i++)
{
if (supported_scales[i] == scale)
return TRUE;
}
return FALSE;
}
static gboolean
is_global_scale_matching_in_config (MetaMonitorsConfig *config,
float scale)
{
GList *l;
for (l = config->logical_monitor_configs; l; l = l->next)
{
MetaLogicalMonitorConfig *logical_monitor_config = l->data;
if (!G_APPROX_VALUE (logical_monitor_config->scale, scale, FLT_EPSILON))
return FALSE;
}
return TRUE;
}
static gboolean
meta_monitor_manager_is_scale_supported_for_config (MetaMonitorManager *manager,
MetaMonitorsConfig *config,
MetaMonitor *monitor,
MetaMonitorMode *monitor_mode,
float scale)
{
if (meta_monitor_manager_is_scale_supported (manager, config->layout_mode,
monitor, monitor_mode, scale))
{
if (meta_monitor_manager_get_capabilities (manager) &
META_MONITOR_MANAGER_CAPABILITY_GLOBAL_SCALE_REQUIRED)
return is_global_scale_matching_in_config (config, scale);
return TRUE;
}
return FALSE;
}
static gboolean
meta_monitor_manager_is_config_applicable (MetaMonitorManager *manager,
MetaMonitorsConfig *config,
GError **error)
{
GList *l;
for (l = config->logical_monitor_configs; l; l = l->next)
{
MetaLogicalMonitorConfig *logical_monitor_config = l->data;
float scale = logical_monitor_config->scale;
GList *k;
for (k = logical_monitor_config->monitor_configs; k; k = k->next)
{
MetaMonitorConfig *monitor_config = k->data;
MetaMonitorSpec *monitor_spec = monitor_config->monitor_spec;
MetaMonitorModeSpec *mode_spec = monitor_config->mode_spec;
MetaMonitor *monitor;
MetaMonitorMode *monitor_mode;
monitor = meta_monitor_manager_get_monitor_from_spec (manager,
monitor_spec);
if (!monitor)
{
g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
"Specified monitor not found");
return FALSE;
}
monitor_mode = meta_monitor_get_mode_from_spec (monitor, mode_spec);
if (!monitor_mode)
{
g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
"Specified monitor mode not available");
return FALSE;
}
if (!meta_monitor_manager_is_scale_supported_for_config (manager,
config,
monitor,
monitor_mode,
scale))
{
g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
"Scale not supported by backend");
return FALSE;
}
if (meta_monitor_is_laptop_panel (monitor) &&
meta_backend_is_lid_closed (manager->backend))
{
g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
"Refusing to activate a closed laptop panel");
return FALSE;
}
}
}
return TRUE;
}
static gboolean
meta_monitor_manager_is_config_complete (MetaMonitorManager *manager,
MetaMonitorsConfig *config)
{
MetaMonitorsConfigKey *current_state_key;
gboolean is_config_complete;
current_state_key =
meta_create_monitors_config_key_for_current_state (manager);
if (!current_state_key)
return FALSE;
is_config_complete = meta_monitors_config_key_equal (current_state_key,
config->key);
meta_monitors_config_key_free (current_state_key);
if (!is_config_complete)
return FALSE;
return meta_monitor_manager_is_config_applicable (manager, config, NULL);
}
static MetaMonitor *
find_monitor_from_connector (MetaMonitorManager *manager,
char *connector)
{
GList *monitors;
GList *l;
if (!connector)
return NULL;
monitors = meta_monitor_manager_get_monitors (manager);
for (l = monitors; l; l = l->next)
{
MetaMonitor *monitor = l->data;
MetaMonitorSpec *monitor_spec = meta_monitor_get_spec (monitor);
if (g_str_equal (connector, monitor_spec->connector))
return monitor;
}
return NULL;
}
#define MONITOR_CONFIG_FORMAT "(ssa{sv})"
#define MONITOR_CONFIGS_FORMAT "a" MONITOR_CONFIG_FORMAT
#define LOGICAL_MONITOR_CONFIG_FORMAT "(iidub" MONITOR_CONFIGS_FORMAT ")"
static MetaMonitorConfig *
create_monitor_config_from_variant (MetaMonitorManager *manager,
GVariant *monitor_config_variant,
GError **error)
{
MetaMonitorConfig *monitor_config = NULL;
g_autofree char *connector = NULL;
g_autofree char *mode_id = NULL;
MetaMonitorMode *monitor_mode;
MetaMonitor *monitor;
MetaMonitorSpec *monitor_spec;
MetaMonitorModeSpec *monitor_mode_spec;
g_autoptr (GVariant) properties_variant = NULL;
gboolean enable_underscanning = FALSE;
gboolean set_underscanning = FALSE;
g_variant_get (monitor_config_variant, "(ss@a{sv})",
&connector,
&mode_id,
&properties_variant);
monitor = find_monitor_from_connector (manager, connector);
if (!monitor)
{
g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
"Invalid connector '%s' specified", connector);
return NULL;
}
monitor_mode = meta_monitor_get_mode_from_id (monitor, mode_id);
if (!monitor_mode)
{
g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
"Invalid mode '%s' specified", mode_id);
return NULL;
}
set_underscanning =
g_variant_lookup (properties_variant, "underscanning", "b",
&enable_underscanning);
if (set_underscanning)
{
if (enable_underscanning && !meta_monitor_supports_underscanning (monitor))
{
g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
"Underscanning requested but unsupported");
return NULL;
}
}
monitor_spec = meta_monitor_spec_clone (meta_monitor_get_spec (monitor));
monitor_mode_spec = g_new0 (MetaMonitorModeSpec, 1);
*monitor_mode_spec = *meta_monitor_mode_get_spec (monitor_mode);
monitor_config = g_new0 (MetaMonitorConfig, 1);
*monitor_config = (MetaMonitorConfig) {
.monitor_spec = monitor_spec,
.mode_spec = monitor_mode_spec,
.enable_underscanning = enable_underscanning
};
return monitor_config;
}
static gboolean
find_monitor_mode_scale (MetaMonitorManager *manager,
MetaLogicalMonitorLayoutMode layout_mode,
MetaMonitorConfig *monitor_config,
float scale,
float *out_scale,
GError **error)
{
MetaMonitorSpec *monitor_spec;
MetaMonitor *monitor;
MetaMonitorModeSpec *monitor_mode_spec;
MetaMonitorMode *monitor_mode;
g_autofree float *supported_scales = NULL;
int n_supported_scales;
int i;
monitor_spec = monitor_config->monitor_spec;
monitor = meta_monitor_manager_get_monitor_from_spec (manager,
monitor_spec);
if (!monitor)
{
g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
"Monitor not found");
return FALSE;
}
monitor_mode_spec = monitor_config->mode_spec;
monitor_mode = meta_monitor_get_mode_from_spec (monitor,
monitor_mode_spec);
if (!monitor_mode)
{
g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
"Monitor mode not found");
return FALSE;
}
supported_scales =
meta_monitor_manager_calculate_supported_scales (manager, layout_mode,
monitor, monitor_mode,
&n_supported_scales);
for (i = 0; i < n_supported_scales; i++)
{
float supported_scale = supported_scales[i];
if (fabsf (supported_scale - scale) < FLT_EPSILON)
{
*out_scale = supported_scale;
return TRUE;
}
}
g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
"Scale %g not valid for resolution %dx%d",
scale,
monitor_mode_spec->width,
monitor_mode_spec->height);
return FALSE;
}
static gboolean
derive_logical_monitor_size (MetaMonitorConfig *monitor_config,
int *out_width,
int *out_height,
float scale,
MetaMonitorTransform transform,
MetaLogicalMonitorLayoutMode layout_mode,
GError **error)
{
int width, height;
if (meta_monitor_transform_is_rotated (transform))
{
width = monitor_config->mode_spec->height;
height = monitor_config->mode_spec->width;
}
else
{
width = monitor_config->mode_spec->width;
height = monitor_config->mode_spec->height;
}
switch (layout_mode)
{
case META_LOGICAL_MONITOR_LAYOUT_MODE_LOGICAL:
width = roundf (width / scale);
height = roundf (height / scale);
break;
case META_LOGICAL_MONITOR_LAYOUT_MODE_PHYSICAL:
break;
}
*out_width = width;
*out_height = height;
return TRUE;
}
static MetaLogicalMonitorConfig *
create_logical_monitor_config_from_variant (MetaMonitorManager *manager,
GVariant *logical_monitor_config_variant,
MetaLogicalMonitorLayoutMode layout_mode,
GError **error)
{
MetaLogicalMonitorConfig *logical_monitor_config;
int x, y, width, height;
double scale_d;
float scale;
MetaMonitorTransform transform;
gboolean is_primary;
GVariantIter *monitor_configs_iter;
GList *monitor_configs = NULL;
MetaMonitorConfig *monitor_config;
g_variant_get (logical_monitor_config_variant, LOGICAL_MONITOR_CONFIG_FORMAT,
&x,
&y,
&scale_d,
&transform,
&is_primary,
&monitor_configs_iter);
scale = (float) scale_d;
while (TRUE)
{
GVariant *monitor_config_variant =
g_variant_iter_next_value (monitor_configs_iter);
MetaMonitorConfig *monitor_config;
if (!monitor_config_variant)
break;
monitor_config =
create_monitor_config_from_variant (manager,
monitor_config_variant, error);
g_variant_unref (monitor_config_variant);
if (!monitor_config)
goto err;
if (!meta_verify_monitor_config (monitor_config, error))
{
meta_monitor_config_free (monitor_config);
goto err;
}
monitor_configs = g_list_append (monitor_configs, monitor_config);
}
g_variant_iter_free (monitor_configs_iter);
if (!monitor_configs)
{
g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
"Empty logical monitor");
goto err;
}
monitor_config = monitor_configs->data;
if (!find_monitor_mode_scale (manager,
layout_mode,
monitor_config,
scale,
&scale,
error))
goto err;
if (!derive_logical_monitor_size (monitor_config, &width, &height,
scale, transform, layout_mode, error))
goto err;
logical_monitor_config = g_new0 (MetaLogicalMonitorConfig, 1);
*logical_monitor_config = (MetaLogicalMonitorConfig) {
.layout = {
.x = x,
.y = y,
.width = width,
.height = height
},
.transform = transform,
.scale = scale,
.is_primary = is_primary,
.monitor_configs = monitor_configs
};
if (!meta_verify_logical_monitor_config (logical_monitor_config,
layout_mode,
manager,
error))
{
meta_logical_monitor_config_free (logical_monitor_config);
return NULL;
}
return logical_monitor_config;
err:
g_list_free_full (monitor_configs, (GDestroyNotify) meta_monitor_config_free);
return NULL;
}
static gboolean
is_valid_layout_mode (MetaLogicalMonitorLayoutMode layout_mode)
{
switch (layout_mode)
{
case META_LOGICAL_MONITOR_LAYOUT_MODE_LOGICAL:
case META_LOGICAL_MONITOR_LAYOUT_MODE_PHYSICAL:
return TRUE;
}
return FALSE;
}
static gboolean
meta_monitor_manager_handle_apply_monitors_config (MetaDBusDisplayConfig *skeleton,
GDBusMethodInvocation *invocation,
guint serial,
guint method,
GVariant *logical_monitor_configs_variant,
GVariant *properties_variant,
MetaMonitorManager *manager)
{
MetaMonitorConfigStore *config_store;
const MetaMonitorConfigPolicy *policy;
MetaMonitorManagerCapability capabilities;
GVariant *layout_mode_variant = NULL;
MetaLogicalMonitorLayoutMode layout_mode;
GVariantIter logical_monitor_configs_iter;
MetaMonitorsConfig *config;
GList *logical_monitor_configs = NULL;
GError *error = NULL;
if (serial != manager->serial)
{
g_dbus_method_invocation_return_error (invocation, G_DBUS_ERROR,
G_DBUS_ERROR_ACCESS_DENIED,
"The requested configuration is based on stale information");
return TRUE;
}
config_store =
meta_monitor_config_manager_get_store (manager->config_manager);
policy = meta_monitor_config_store_get_policy (config_store);
if (!policy->enable_dbus)
{
g_dbus_method_invocation_return_error (invocation, G_DBUS_ERROR,
G_DBUS_ERROR_ACCESS_DENIED,
"Monitor configuration via D-Bus is disabled");
return TRUE;
}
capabilities = meta_monitor_manager_get_capabilities (manager);
if (properties_variant)
layout_mode_variant = g_variant_lookup_value (properties_variant,
"layout-mode",
G_VARIANT_TYPE ("u"));
if (layout_mode_variant &&
capabilities & META_MONITOR_MANAGER_CAPABILITY_LAYOUT_MODE)
{
g_variant_get (layout_mode_variant, "u", &layout_mode);
}
else if (!layout_mode_variant)
{
layout_mode =
meta_monitor_manager_get_default_layout_mode (manager);
}
else
{
g_dbus_method_invocation_return_error (invocation, G_DBUS_ERROR,
G_DBUS_ERROR_INVALID_ARGS,
"Can't set layout mode");
return TRUE;
}
if (!is_valid_layout_mode (layout_mode))
{
g_dbus_method_invocation_return_error (invocation, G_DBUS_ERROR,
G_DBUS_ERROR_ACCESS_DENIED,
"Invalid layout mode specified");
return TRUE;
}
g_variant_iter_init (&logical_monitor_configs_iter,
logical_monitor_configs_variant);
while (TRUE)
{
GVariant *logical_monitor_config_variant =
g_variant_iter_next_value (&logical_monitor_configs_iter);
MetaLogicalMonitorConfig *logical_monitor_config;
if (!logical_monitor_config_variant)
break;
logical_monitor_config =
create_logical_monitor_config_from_variant (manager,
logical_monitor_config_variant,
layout_mode,
&error);
g_variant_unref (logical_monitor_config_variant);
if (!logical_monitor_config)
{
g_dbus_method_invocation_return_error (invocation, G_DBUS_ERROR,
G_DBUS_ERROR_INVALID_ARGS,
"%s", error->message);
g_error_free (error);
g_list_free_full (logical_monitor_configs,
(GDestroyNotify) meta_logical_monitor_config_free);
return TRUE;
}
logical_monitor_configs = g_list_append (logical_monitor_configs,
logical_monitor_config);
}
config = meta_monitors_config_new (manager,
logical_monitor_configs,
layout_mode,
META_MONITORS_CONFIG_FLAG_NONE);
if (!meta_verify_monitors_config (config, manager, &error))
{
g_dbus_method_invocation_return_error (invocation, G_DBUS_ERROR,
G_DBUS_ERROR_INVALID_ARGS,
"%s", error->message);
g_error_free (error);
g_object_unref (config);
return TRUE;
}
if (!meta_monitor_manager_is_config_applicable (manager, config, &error))
{
g_dbus_method_invocation_return_error (invocation, G_DBUS_ERROR,
G_DBUS_ERROR_INVALID_ARGS,
"%s", error->message);
g_error_free (error);
g_object_unref (config);
return TRUE;
}
monitor-manager: Restore old config in idle callback when unconfirmed We might get told to restore the old monitor configuration by the monitor configuration prompt, in case the user pressed "revert" or equivalent. This might be in response to a button press, and those happen during frame clock dispatch. If we would restore an old configuration during dispatch, it means we would reconfigure the monitors including their stage views while dispatching, which means we'd destroy the frame clock while it's dispatching. Doing that causes problems, as the frame clock isn't expecting to be destroyed mid-function. Specifically, We'd enter clutter_frame_clock_dispatch (clutter-frame-clock.c:811) frame_clock_source_dispatch (clutter-frame-clock.c:839) g_main_dispatch (gmain.c:3454) g_main_context_dispatch (gmain.c:4172) g_main_context_iterate.constprop.0 (gmain.c:4248) g_main_loop_run (gmain.c:4448) meta_context_run_main_loop (meta-context.c:482) main (main.c:663) which would first call _clutter_process_event (clutter-main.c:920) _clutter_stage_process_queued_events (clutter-stage.c:757) handle_frame_clock_before_frame (clutter-stage-view.c:1150) which would emit e.g. a button event all the way to a button press handler, which would e.g. deny the new configuration: restore_previous_config (meta-monitor-manager.c:1931) confirm_configuration (meta-monitor-manager.c:2866) meta_monitor_manager_confirm_configuration (meta-monitor-manager.c:2880) meta_plugin_complete_display_change (meta-plugin.c:172) That would then regenerate the monitor configuration and stage view layout, which would destroy the old stage view and frame clock. meta_stage_native_rebuild_views (meta-stage-native.c:68) meta_backend_native_update_screen_size (meta-backend-native.c:457) meta_backend_sync_screen_size (meta-backend.c:266) meta_backend_monitors_changed (meta-backend.c:337) meta_monitor_manager_notify_monitors_changed (meta-monitor-manager.c:3595) meta_monitor_manager_rebuild (meta-monitor-manager.c:3683) meta_monitor_manager_native_apply_monitors_config (meta-monitor-manager-native.c:343) meta_monitor_manager_apply_monitors_config (meta-monitor-manager.c:704) After returning back to the original clutter_frame_clock_dispatch() frame, various state in the frame clock will be gone and we'd crash. Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2901>
2023-03-06 18:06:30 -05:00
if (method != META_MONITORS_CONFIG_METHOD_VERIFY)
{
g_clear_handle_id (&manager->restore_config_id, g_source_remove);
g_clear_handle_id (&manager->persistent_timeout_id, g_source_remove);
}
if (!meta_monitor_manager_apply_monitors_config (manager,
config,
method,
&error))
{
g_dbus_method_invocation_return_error (invocation, G_DBUS_ERROR,
G_DBUS_ERROR_INVALID_ARGS,
"%s", error->message);
g_error_free (error);
g_object_unref (config);
return TRUE;
}
if (method == META_MONITORS_CONFIG_METHOD_PERSISTENT)
request_persistent_confirmation (manager);
meta_dbus_display_config_complete_apply_monitors_config (skeleton, invocation);
return TRUE;
}
#undef MONITOR_MODE_SPEC_FORMAT
#undef MONITOR_CONFIG_FORMAT
#undef MONITOR_CONFIGS_FORMAT
#undef LOGICAL_MONITOR_CONFIG_FORMAT
void
meta_monitor_manager_confirm_configuration (MetaMonitorManager *manager,
gboolean ok)
{
if (!manager->persistent_timeout_id)
monitor-manager: Restore old config in idle callback when unconfirmed We might get told to restore the old monitor configuration by the monitor configuration prompt, in case the user pressed "revert" or equivalent. This might be in response to a button press, and those happen during frame clock dispatch. If we would restore an old configuration during dispatch, it means we would reconfigure the monitors including their stage views while dispatching, which means we'd destroy the frame clock while it's dispatching. Doing that causes problems, as the frame clock isn't expecting to be destroyed mid-function. Specifically, We'd enter clutter_frame_clock_dispatch (clutter-frame-clock.c:811) frame_clock_source_dispatch (clutter-frame-clock.c:839) g_main_dispatch (gmain.c:3454) g_main_context_dispatch (gmain.c:4172) g_main_context_iterate.constprop.0 (gmain.c:4248) g_main_loop_run (gmain.c:4448) meta_context_run_main_loop (meta-context.c:482) main (main.c:663) which would first call _clutter_process_event (clutter-main.c:920) _clutter_stage_process_queued_events (clutter-stage.c:757) handle_frame_clock_before_frame (clutter-stage-view.c:1150) which would emit e.g. a button event all the way to a button press handler, which would e.g. deny the new configuration: restore_previous_config (meta-monitor-manager.c:1931) confirm_configuration (meta-monitor-manager.c:2866) meta_monitor_manager_confirm_configuration (meta-monitor-manager.c:2880) meta_plugin_complete_display_change (meta-plugin.c:172) That would then regenerate the monitor configuration and stage view layout, which would destroy the old stage view and frame clock. meta_stage_native_rebuild_views (meta-stage-native.c:68) meta_backend_native_update_screen_size (meta-backend-native.c:457) meta_backend_sync_screen_size (meta-backend.c:266) meta_backend_monitors_changed (meta-backend.c:337) meta_monitor_manager_notify_monitors_changed (meta-monitor-manager.c:3595) meta_monitor_manager_rebuild (meta-monitor-manager.c:3683) meta_monitor_manager_native_apply_monitors_config (meta-monitor-manager-native.c:343) meta_monitor_manager_apply_monitors_config (meta-monitor-manager.c:704) After returning back to the original clutter_frame_clock_dispatch() frame, various state in the frame clock will be gone and we'd crash. Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2901>
2023-03-06 18:06:30 -05:00
return;
g_clear_handle_id (&manager->restore_config_id, g_source_remove);
g_clear_handle_id (&manager->persistent_timeout_id, g_source_remove);
if (ok)
{
monitor-manager: Restore old config in idle callback when unconfirmed We might get told to restore the old monitor configuration by the monitor configuration prompt, in case the user pressed "revert" or equivalent. This might be in response to a button press, and those happen during frame clock dispatch. If we would restore an old configuration during dispatch, it means we would reconfigure the monitors including their stage views while dispatching, which means we'd destroy the frame clock while it's dispatching. Doing that causes problems, as the frame clock isn't expecting to be destroyed mid-function. Specifically, We'd enter clutter_frame_clock_dispatch (clutter-frame-clock.c:811) frame_clock_source_dispatch (clutter-frame-clock.c:839) g_main_dispatch (gmain.c:3454) g_main_context_dispatch (gmain.c:4172) g_main_context_iterate.constprop.0 (gmain.c:4248) g_main_loop_run (gmain.c:4448) meta_context_run_main_loop (meta-context.c:482) main (main.c:663) which would first call _clutter_process_event (clutter-main.c:920) _clutter_stage_process_queued_events (clutter-stage.c:757) handle_frame_clock_before_frame (clutter-stage-view.c:1150) which would emit e.g. a button event all the way to a button press handler, which would e.g. deny the new configuration: restore_previous_config (meta-monitor-manager.c:1931) confirm_configuration (meta-monitor-manager.c:2866) meta_monitor_manager_confirm_configuration (meta-monitor-manager.c:2880) meta_plugin_complete_display_change (meta-plugin.c:172) That would then regenerate the monitor configuration and stage view layout, which would destroy the old stage view and frame clock. meta_stage_native_rebuild_views (meta-stage-native.c:68) meta_backend_native_update_screen_size (meta-backend-native.c:457) meta_backend_sync_screen_size (meta-backend.c:266) meta_backend_monitors_changed (meta-backend.c:337) meta_monitor_manager_notify_monitors_changed (meta-monitor-manager.c:3595) meta_monitor_manager_rebuild (meta-monitor-manager.c:3683) meta_monitor_manager_native_apply_monitors_config (meta-monitor-manager-native.c:343) meta_monitor_manager_apply_monitors_config (meta-monitor-manager.c:704) After returning back to the original clutter_frame_clock_dispatch() frame, various state in the frame clock will be gone and we'd crash. Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2901>
2023-03-06 18:06:30 -05:00
meta_monitor_config_manager_save_current (manager->config_manager);
}
else
{
manager->restore_config_id =
g_idle_add_once ((GSourceOnceFunc) restore_previous_config, manager);
}
}
static gboolean
meta_monitor_manager_handle_change_backlight (MetaDBusDisplayConfig *skeleton,
GDBusMethodInvocation *invocation,
guint serial,
guint output_index,
gint value,
MetaMonitorManager *manager)
{
GList *combined_outputs;
MetaOutput *output;
const MetaOutputInfo *output_info;
int new_backlight;
if (serial != manager->serial)
{
g_dbus_method_invocation_return_error (invocation, G_DBUS_ERROR,
G_DBUS_ERROR_ACCESS_DENIED,
"The requested configuration is based on stale information");
return TRUE;
}
combined_outputs = combine_gpu_lists (manager, meta_gpu_get_outputs);
if (output_index >= g_list_length (combined_outputs))
{
g_list_free (combined_outputs);
g_dbus_method_invocation_return_error (invocation, G_DBUS_ERROR,
G_DBUS_ERROR_INVALID_ARGS,
"Invalid output id");
return TRUE;
}
output = g_list_nth_data (combined_outputs, output_index);
g_list_free (combined_outputs);
if (value < 0 || value > 100)
{
g_dbus_method_invocation_return_error (invocation, G_DBUS_ERROR,
G_DBUS_ERROR_INVALID_ARGS,
"Invalid backlight value");
return TRUE;
}
output_info = meta_output_get_info (output);
if (meta_output_get_backlight (output) == -1 ||
(output_info->backlight_min == 0 &&
output_info->backlight_max == 0))
{
g_dbus_method_invocation_return_error (invocation, G_DBUS_ERROR,
G_DBUS_ERROR_INVALID_ARGS,
"Output does not support changing backlight");
return TRUE;
}
META_MONITOR_MANAGER_GET_CLASS (manager)->change_backlight (manager, output, value);
new_backlight = meta_output_get_backlight (output);
meta_dbus_display_config_complete_change_backlight (skeleton,
invocation,
new_backlight);
return TRUE;
}
static gboolean
meta_monitor_manager_handle_get_crtc_gamma (MetaDBusDisplayConfig *skeleton,
GDBusMethodInvocation *invocation,
guint serial,
guint crtc_id,
MetaMonitorManager *manager)
{
GList *combined_crtcs;
MetaCrtc *crtc;
g_autoptr (MetaGammaLut) gamma_lut = NULL;
GBytes *red_bytes, *green_bytes, *blue_bytes;
GVariant *red_v, *green_v, *blue_v;
if (serial != manager->serial)
{
g_dbus_method_invocation_return_error (invocation, G_DBUS_ERROR,
G_DBUS_ERROR_ACCESS_DENIED,
"The requested configuration is based on stale information");
return TRUE;
}
combined_crtcs = combine_gpu_lists (manager, meta_gpu_get_crtcs);
if (crtc_id >= g_list_length (combined_crtcs))
{
g_list_free (combined_crtcs);
g_dbus_method_invocation_return_error (invocation, G_DBUS_ERROR,
G_DBUS_ERROR_INVALID_ARGS,
"Invalid crtc id");
return TRUE;
}
crtc = g_list_nth_data (combined_crtcs, crtc_id);
g_list_free (combined_crtcs);
gamma_lut = meta_crtc_get_gamma_lut (crtc);
red_bytes = g_bytes_new_take (g_steal_pointer (&gamma_lut->red),
gamma_lut->size * sizeof (unsigned short));
green_bytes = g_bytes_new_take (g_steal_pointer (&gamma_lut->green),
gamma_lut->size * sizeof (unsigned short));
blue_bytes = g_bytes_new_take (g_steal_pointer (&gamma_lut->blue),
gamma_lut->size * sizeof (unsigned short));
red_v = g_variant_new_from_bytes (G_VARIANT_TYPE ("aq"), red_bytes, TRUE);
green_v = g_variant_new_from_bytes (G_VARIANT_TYPE ("aq"), green_bytes, TRUE);
blue_v = g_variant_new_from_bytes (G_VARIANT_TYPE ("aq"), blue_bytes, TRUE);
meta_dbus_display_config_complete_get_crtc_gamma (skeleton, invocation,
red_v, green_v, blue_v);
g_bytes_unref (red_bytes);
g_bytes_unref (green_bytes);
g_bytes_unref (blue_bytes);
return TRUE;
}
static gboolean
meta_monitor_manager_handle_set_crtc_gamma (MetaDBusDisplayConfig *skeleton,
GDBusMethodInvocation *invocation,
guint serial,
guint crtc_id,
GVariant *red_v,
GVariant *green_v,
GVariant *blue_v,
MetaMonitorManager *manager)
{
GList *combined_crtcs;
MetaCrtc *crtc;
size_t dummy;
GBytes *red_bytes, *green_bytes, *blue_bytes;
MetaGammaLut lut;
if (serial != manager->serial)
{
g_dbus_method_invocation_return_error (invocation, G_DBUS_ERROR,
G_DBUS_ERROR_ACCESS_DENIED,
"The requested configuration is based on stale information");
return TRUE;
}
combined_crtcs = combine_gpu_lists (manager, meta_gpu_get_crtcs);
if (crtc_id >= g_list_length (combined_crtcs))
{
g_list_free (combined_crtcs);
g_dbus_method_invocation_return_error (invocation, G_DBUS_ERROR,
G_DBUS_ERROR_INVALID_ARGS,
"Invalid crtc id");
return TRUE;
}
crtc = g_list_nth_data (combined_crtcs, crtc_id);
g_list_free (combined_crtcs);
red_bytes = g_variant_get_data_as_bytes (red_v);
green_bytes = g_variant_get_data_as_bytes (green_v);
blue_bytes = g_variant_get_data_as_bytes (blue_v);
lut.size = g_bytes_get_size (red_bytes) / sizeof (uint16_t);
lut.red = (uint16_t *) g_bytes_get_data (red_bytes, &dummy);
lut.green = (uint16_t *) g_bytes_get_data (green_bytes, &dummy);
lut.blue = (uint16_t *) g_bytes_get_data (blue_bytes, &dummy);
meta_crtc_set_gamma_lut (crtc, &lut);
meta_dbus_display_config_complete_set_crtc_gamma (skeleton, invocation);
g_bytes_unref (red_bytes);
g_bytes_unref (green_bytes);
g_bytes_unref (blue_bytes);
return TRUE;
}
static gboolean
meta_monitor_manager_handle_set_output_ctm (MetaDBusDisplayConfig *skeleton,
GDBusMethodInvocation *invocation,
guint serial,
guint output_id,
GVariant *ctm_var,
MetaMonitorManager *manager)
{
MetaMonitorManagerClass *klass;
GList *combined_outputs;
MetaOutput *output;
MetaOutputCtm ctm;
int i;
if (serial != manager->serial)
{
g_dbus_method_invocation_return_error (invocation, G_DBUS_ERROR,
G_DBUS_ERROR_ACCESS_DENIED,
"The requested configuration is based on stale information");
return TRUE;
}
combined_outputs = combine_gpu_lists (manager, meta_gpu_get_outputs);
if (output_id >= g_list_length (combined_outputs))
{
g_list_free (combined_outputs);
g_dbus_method_invocation_return_error (invocation, G_DBUS_ERROR,
G_DBUS_ERROR_INVALID_ARGS,
"Invalid output id");
return TRUE;
}
output = g_list_nth_data (combined_outputs, output_id);
g_list_free (combined_outputs);
if (g_variant_n_children (ctm_var) != 9)
{
g_dbus_method_invocation_return_error (invocation, G_DBUS_ERROR,
G_DBUS_ERROR_INVALID_ARGS,
"Unexpected color transform matrix variant length");
return TRUE;
}
for (i = 0; i < 9; i++)
{
GVariant *tmp = g_variant_get_child_value (ctm_var, i);
ctm.matrix[i] = g_variant_get_uint64 (tmp);
g_variant_unref (tmp);
}
klass = META_MONITOR_MANAGER_GET_CLASS (manager);
if (klass->set_output_ctm)
klass->set_output_ctm (output, &ctm);
meta_dbus_display_config_complete_set_output_ctm (skeleton, invocation);
return TRUE;
}
static void
monitor_manager_setup_dbus_config_handlers (MetaMonitorManager *manager)
{
g_signal_connect_object (manager->display_config, "handle-get-resources",
G_CALLBACK (meta_monitor_manager_handle_get_resources),
manager, 0);
g_signal_connect_object (manager->display_config, "handle-change-backlight",
G_CALLBACK (meta_monitor_manager_handle_change_backlight),
manager, 0);
g_signal_connect_object (manager->display_config, "handle-get-crtc-gamma",
G_CALLBACK (meta_monitor_manager_handle_get_crtc_gamma),
manager, 0);
g_signal_connect_object (manager->display_config, "handle-set-crtc-gamma",
G_CALLBACK (meta_monitor_manager_handle_set_crtc_gamma),
manager, 0);
g_signal_connect_object (manager->display_config, "handle-get-current-state",
G_CALLBACK (meta_monitor_manager_handle_get_current_state),
manager, 0);
g_signal_connect_object (manager->display_config, "handle-apply-monitors-config",
G_CALLBACK (meta_monitor_manager_handle_apply_monitors_config),
manager, 0);
g_signal_connect_object (manager->display_config, "handle-set-output-ctm",
G_CALLBACK (meta_monitor_manager_handle_set_output_ctm),
manager, 0);
}
static void
on_bus_acquired (GDBusConnection *connection,
const char *name,
gpointer user_data)
{
MetaMonitorManager *manager = user_data;
g_dbus_interface_skeleton_export (G_DBUS_INTERFACE_SKELETON (manager->display_config),
connection,
"/org/gnome/Mutter/DisplayConfig",
NULL);
}
static void
on_name_acquired (GDBusConnection *connection,
const char *name,
gpointer user_data)
{
meta_topic (META_DEBUG_DBUS, "Acquired name %s", name);
}
static void
on_name_lost (GDBusConnection *connection,
const char *name,
gpointer user_data)
{
meta_topic (META_DEBUG_DBUS, "Lost or failed to acquire name %s", name);
}
static void
initialize_dbus_interface (MetaMonitorManager *manager)
{
MetaContext *context = meta_backend_get_context (manager->backend);
manager->dbus_name_id =
g_bus_own_name (G_BUS_TYPE_SESSION,
"org.gnome.Mutter.DisplayConfig",
G_BUS_NAME_OWNER_FLAGS_ALLOW_REPLACEMENT |
(meta_context_is_replacing (context) ?
G_BUS_NAME_OWNER_FLAGS_REPLACE :
G_BUS_NAME_OWNER_FLAGS_NONE),
on_bus_acquired,
on_name_acquired,
on_name_lost,
g_object_ref (manager),
g_object_unref);
}
2018-10-19 03:15:54 -04:00
/**
* meta_monitor_manager_get_num_logical_monitors:
* @manager: A #MetaMonitorManager object
*
* Returns the number of `MetaLogicalMonitor`s (can be 0 in case of a
2018-10-19 03:15:54 -04:00
* headless setup).
*
* Returns: the total number of `MetaLogicalMonitor`s.
2018-10-19 03:15:54 -04:00
*/
int
meta_monitor_manager_get_num_logical_monitors (MetaMonitorManager *manager)
{
return g_list_length (manager->logical_monitors);
}
2018-10-19 03:15:54 -04:00
/**
* meta_monitor_manager_get_logical_monitors:
* @manager: A #MetaMonitorManager object
*
* Returns the list of `MetaLogicalMonitor`s that is handled. See also
2018-10-19 03:15:54 -04:00
* meta_monitor_manager_get_num_logical_monitors() if you only need the size of
* the list.
*
* Returns: (transfer none) (nullable): the list of logical monitors.
*/
GList *
meta_monitor_manager_get_logical_monitors (MetaMonitorManager *manager)
{
return manager->logical_monitors;
}
MetaLogicalMonitor *
meta_monitor_manager_get_logical_monitor_from_number (MetaMonitorManager *manager,
int number)
{
g_return_val_if_fail ((unsigned int) number < g_list_length (manager->logical_monitors), NULL);
return g_list_nth (manager->logical_monitors, number)->data;
}
MetaLogicalMonitor *
meta_monitor_manager_get_primary_logical_monitor (MetaMonitorManager *manager)
{
return manager->primary_logical_monitor;
}
static MetaMonitor *
find_monitor (MetaMonitorManager *monitor_manager,
gboolean (*match_func) (MetaMonitor *monitor))
{
GList *monitors;
GList *l;
monitors = meta_monitor_manager_get_monitors (monitor_manager);
for (l = monitors; l; l = l->next)
{
MetaMonitor *monitor = l->data;
if (match_func (monitor))
return monitor;
}
return NULL;
}
2018-10-19 03:15:54 -04:00
/**
* meta_monitor_manager_get_primary_monitor:
* @manager: A #MetaMonitorManager object
*
* Returns the primary monitor. This can be %NULL (e.g. when running headless).
*
* Returns: (transfer none) (nullable): The primary #MetaMonitor, or %NULL if
* none.
*/
MetaMonitor *
meta_monitor_manager_get_primary_monitor (MetaMonitorManager *manager)
{
return find_monitor (manager, meta_monitor_is_primary);
}
2018-10-19 03:15:54 -04:00
/**
* meta_monitor_manager_get_laptop_panel:
* @manager: A #MetaMonitorManager object
*
* Returns the #MetaMonitor that represents the built-in laptop panel (if
* applicable).
*
* Returns: (transfer none) (nullable): The laptop panel, or %NULL if none.
*/
MetaMonitor *
meta_monitor_manager_get_laptop_panel (MetaMonitorManager *manager)
{
return find_monitor (manager, meta_monitor_is_laptop_panel);
}
MetaMonitor *
meta_monitor_manager_get_monitor_from_connector (MetaMonitorManager *manager,
const char *connector)
{
GList *l;
for (l = manager->monitors; l; l = l->next)
{
MetaMonitor *monitor = l->data;
if (g_str_equal (meta_monitor_get_connector (monitor),
connector))
return monitor;
}
return NULL;
}
MetaMonitor *
meta_monitor_manager_get_monitor_from_spec (MetaMonitorManager *manager,
MetaMonitorSpec *monitor_spec)
{
GList *l;
for (l = manager->monitors; l; l = l->next)
{
MetaMonitor *monitor = l->data;
if (meta_monitor_spec_equals (meta_monitor_get_spec (monitor),
monitor_spec))
return monitor;
}
return NULL;
}
2018-10-19 03:15:54 -04:00
/**
* meta_monitor_manager_get_logical_monitor_at:
* @manager: A #MetaMonitorManager object
* @x: The x-coordinate
* @y: The y-coordinate
*
* Finds the #MetaLogicalMonitor at the given @x and @y coordinates in the
* total layout.
*
* Returns: (transfer none) (nullable): The #MetaLogicalMonitor at the given
* point, or %NULL if none.
*/
MetaLogicalMonitor *
meta_monitor_manager_get_logical_monitor_at (MetaMonitorManager *manager,
float x,
float y)
{
GList *l;
for (l = manager->logical_monitors; l; l = l->next)
{
MetaLogicalMonitor *logical_monitor = l->data;
if (META_POINT_IN_RECT (x, y, logical_monitor->rect))
return logical_monitor;
}
return NULL;
}
2018-10-19 03:15:54 -04:00
/**
* meta_monitor_manager_get_logical_monitor_from_rect:
* @manager: A #MetaMonitorManager object
* @rect: The rectangle
*
* Finds the #MetaLogicalMonitor which contains the center of the given @rect
* or which has the largest area in common with the given @rect in the total
* layout if the center is not on a monitor.
2018-10-19 03:15:54 -04:00
*
* Returns: (transfer none) (nullable): The #MetaLogicalMonitor which
* corresponds the most to the given @rect, or %NULL if none.
*/
MetaLogicalMonitor *
meta_monitor_manager_get_logical_monitor_from_rect (MetaMonitorManager *manager,
MtkRectangle *rect)
{
MetaLogicalMonitor *best_logical_monitor;
int best_logical_monitor_area;
GList *l;
int center_x = rect->x + (rect->width / 2);
int center_y = rect->y + (rect->height / 2);
best_logical_monitor = NULL;
best_logical_monitor_area = 0;
for (l = manager->logical_monitors; l; l = l->next)
{
MetaLogicalMonitor *logical_monitor = l->data;
MtkRectangle intersection;
int intersection_area;
if (META_POINT_IN_RECT (center_x, center_y, logical_monitor->rect))
return logical_monitor;
if (!mtk_rectangle_intersect (&logical_monitor->rect,
rect,
&intersection))
continue;
intersection_area = mtk_rectangle_area (&intersection);
if (intersection_area > best_logical_monitor_area)
{
best_logical_monitor = logical_monitor;
best_logical_monitor_area = intersection_area;
}
}
if (!best_logical_monitor)
best_logical_monitor = manager->primary_logical_monitor;
return best_logical_monitor;
}
/**
* meta_monitor_manager_get_highest_scale_from_rect:
* @manager: A #MetaMonitorManager object
* @rect: The rectangle
*
* Finds the #MetaLogicalMonitor with the highest scale intersecting @rect.
*
* Returns: (transfer none) (nullable): the #MetaLogicalMonitor with the
* highest scale intersecting with @rect, or %NULL if none.
*/
MetaLogicalMonitor *
meta_monitor_manager_get_highest_scale_monitor_from_rect (MetaMonitorManager *manager,
MtkRectangle *rect)
{
MetaLogicalMonitor *best_logical_monitor = NULL;
GList *l;
float best_scale = 0.0;
for (l = manager->logical_monitors; l; l = l->next)
{
MetaLogicalMonitor *logical_monitor = l->data;
MtkRectangle intersection;
float scale;
if (!mtk_rectangle_intersect (&logical_monitor->rect,
rect,
&intersection))
continue;
scale = meta_logical_monitor_get_scale (logical_monitor);
if (scale > best_scale)
{
best_scale = scale;
best_logical_monitor = logical_monitor;
}
}
return best_logical_monitor;
}
MetaLogicalMonitor *
meta_monitor_manager_get_logical_monitor_neighbor (MetaMonitorManager *manager,
MetaLogicalMonitor *logical_monitor,
MetaDisplayDirection direction)
{
GList *l;
for (l = manager->logical_monitors; l; l = l->next)
{
MetaLogicalMonitor *other = l->data;
if (meta_logical_monitor_has_neighbor (logical_monitor, other, direction))
return other;
}
return NULL;
}
2018-10-19 03:15:54 -04:00
/**
* meta_monitor_manager_get_monitors:
* @manager: A #MetaMonitorManager object
*
* Returns the list of [class@Meta.Monitor]s. See also
2018-10-19 03:15:54 -04:00
* meta_monitor_manager_get_logical_monitors() for a list of
* `MetaLogicalMonitor`s.
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*
* Returns: (transfer none) (nullable): the list of [class@Meta.Monitor]s.
2018-10-19 03:15:54 -04:00
*/
GList *
meta_monitor_manager_get_monitors (MetaMonitorManager *manager)
{
return manager->monitors;
}
void
meta_monitor_manager_get_screen_size (MetaMonitorManager *manager,
int *width,
int *height)
{
*width = manager->screen_width;
*height = manager->screen_height;
}
MetaPowerSave
meta_monitor_manager_get_power_save_mode (MetaMonitorManager *manager)
{
MetaMonitorManagerPrivate *priv =
meta_monitor_manager_get_instance_private (manager);
return priv->power_save_mode;
}
static void
destroy_monitor (MetaMonitor *monitor)
{
g_object_run_dispose (G_OBJECT (monitor));
g_object_unref (monitor);
}
static void
rebuild_monitors (MetaMonitorManager *manager)
{
GList *gpus;
GList *l;
if (manager->monitors)
{
g_list_free_full (manager->monitors, (GDestroyNotify) destroy_monitor);
manager->monitors = NULL;
}
gpus = meta_backend_get_gpus (manager->backend);
for (l = gpus; l; l = l->next)
{
MetaGpu *gpu = l->data;
GList *k;
for (k = meta_gpu_get_outputs (gpu); k; k = k->next)
{
MetaOutput *output = k->data;
const MetaOutputInfo *output_info = meta_output_get_info (output);
if (output_info->tile_info.group_id)
{
if (is_main_tiled_monitor_output (output))
{
MetaMonitorTiled *monitor_tiled;
monitor_tiled = meta_monitor_tiled_new (manager, output);
manager->monitors = g_list_append (manager->monitors,
monitor_tiled);
}
}
else
{
MetaMonitorNormal *monitor_normal;
monitor_normal = meta_monitor_normal_new (manager, output);
manager->monitors = g_list_append (manager->monitors,
monitor_normal);
}
}
}
Introduce virtual monitors Virtual monitors are monitors that isn't backed by any monitor like hardware. It would typically be backed by e.g. a remote desktop service, or a network display. It is currently only supported by the native backend, and whether the X11 backend will ever see virtual monitors is an open question. This rest of this commit message describes how it works under the native backend. Each virutal monitor consists of virtualized mode setting components: * A virtual CRTC mode (MetaCrtcModeVirtual) * A virtual CRTC (MetaCrtcVirtual) * A virtual connector (MetaOutputVirtual) In difference to the corresponding mode setting objects that represents KMS objects, the virtual ones isn't directly tied to a MetaGpu, other than the CoglFramebuffer being part of the GPU context of the primary GPU, which is the case for all monitors no matter what GPU they are connected to. Part of the reason for this is that a MetaGpu in practice represents a mode setting device, and its CRTCs and outputs, are all backed by real mode setting objects, while a virtual monitor is only backed by a framebuffer that is tied to the primary GPU. Maybe this will be reevaluated in the future, but since a virtual monitor is not tied to any GPU currently, so is the case for the virtual mode setting objects. The native rendering backend, including the cursor renderer, is adapted to handle the situation where a CRTC does not have a GPU associated with it; this in practice means that it e.g. will not try to upload HW cursor buffers when the cursor is only on a virtual monitor. The same applies to the native renderer, which is made to avoid creating MetaOnscreenNative for views that are backed by virtual CRTCs, as well as to avoid trying to mode set on such views. Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1698>
2021-01-26 10:49:28 -05:00
for (l = meta_monitor_manager_get_virtual_monitors (manager); l; l = l->next)
{
MetaVirtualMonitor *virtual_monitor = l->data;
MetaOutput *output = meta_virtual_monitor_get_output (virtual_monitor);
MetaMonitorNormal *monitor_normal;
monitor_normal = meta_monitor_normal_new (manager, output);
manager->monitors = g_list_append (manager->monitors,
monitor_normal);
}
update_panel_orientation_managed (manager);
update_has_builtin_panel (manager);
update_night_light_supported (manager);
}
void
meta_monitor_manager_tiled_monitor_added (MetaMonitorManager *manager,
MetaMonitor *monitor)
{
MetaMonitorManagerClass *manager_class =
META_MONITOR_MANAGER_GET_CLASS (manager);
if (manager_class->tiled_monitor_added)
manager_class->tiled_monitor_added (manager, monitor);
}
void
meta_monitor_manager_tiled_monitor_removed (MetaMonitorManager *manager,
MetaMonitor *monitor)
{
MetaMonitorManagerClass *manager_class =
META_MONITOR_MANAGER_GET_CLASS (manager);
if (manager_class->tiled_monitor_removed)
manager_class->tiled_monitor_removed (manager, monitor);
}
static void
meta_monitor_manager_real_read_current_state (MetaMonitorManager *manager)
{
GList *l;
manager->serial++;
for (l = meta_backend_get_gpus (manager->backend); l; l = l->next)
{
MetaGpu *gpu = l->data;
GError *error = NULL;
if (!meta_gpu_read_current (gpu, &error))
{
g_warning ("Failed to read current monitor state: %s", error->message);
g_clear_error (&error);
}
}
rebuild_monitors (manager);
}
void
meta_monitor_manager_read_current_state (MetaMonitorManager *manager)
{
MetaMonitorManagerClass *manager_class =
META_MONITOR_MANAGER_GET_CLASS (manager);
manager_class->read_current_state (manager);
}
static void
meta_monitor_manager_notify_monitors_changed (MetaMonitorManager *manager)
{
meta_backend_monitors_changed (manager->backend);
g_signal_emit (manager, signals[MONITORS_CHANGED_INTERNAL], 0);
g_signal_emit (manager, signals[MONITORS_CHANGED], 0);
meta_dbus_display_config_emit_monitors_changed (manager->display_config);
}
static void
set_logical_monitor_modes (MetaMonitorManager *manager,
MetaLogicalMonitorConfig *logical_monitor_config)
{
GList *l;
for (l = logical_monitor_config->monitor_configs; l; l = l->next)
{
MetaMonitorConfig *monitor_config = l->data;
MetaMonitorSpec *monitor_spec;
MetaMonitor *monitor;
MetaMonitorModeSpec *monitor_mode_spec;
MetaMonitorMode *monitor_mode;
monitor_spec = monitor_config->monitor_spec;
monitor = meta_monitor_manager_get_monitor_from_spec (manager,
monitor_spec);
monitor_mode_spec = monitor_config->mode_spec;
monitor_mode = meta_monitor_get_mode_from_spec (monitor,
monitor_mode_spec);
meta_monitor_set_current_mode (monitor, monitor_mode);
}
}
static void
meta_monitor_manager_update_monitor_modes (MetaMonitorManager *manager,
MetaMonitorsConfig *config)
{
GList *logical_monitor_configs;
GList *l;
g_list_foreach (manager->monitors,
(GFunc) meta_monitor_set_current_mode,
NULL);
logical_monitor_configs = config ? config->logical_monitor_configs : NULL;
for (l = logical_monitor_configs; l; l = l->next)
{
MetaLogicalMonitorConfig *logical_monitor_config = l->data;
set_logical_monitor_modes (manager, logical_monitor_config);
}
}
void
meta_monitor_manager_update_logical_state (MetaMonitorManager *manager,
MetaMonitorsConfig *config)
{
if (config)
{
manager->layout_mode = config->layout_mode;
manager->current_switch_config =
meta_monitors_config_get_switch_config (config);
}
else
{
manager->layout_mode =
meta_monitor_manager_get_default_layout_mode (manager);
manager->current_switch_config = META_MONITOR_SWITCH_CONFIG_UNKNOWN;
}
meta_monitor_manager_rebuild_logical_monitors (manager, config);
}
void
meta_monitor_manager_rebuild (MetaMonitorManager *manager,
MetaMonitorsConfig *config)
{
GList *old_logical_monitors;
meta_monitor_manager_update_monitor_modes (manager, config);
if (manager->in_init)
return;
old_logical_monitors = manager->logical_monitors;
meta_monitor_manager_update_logical_state (manager, config);
ensure_privacy_screen_settings (manager);
ensure_hdr_settings (manager);
meta_monitor_manager_notify_monitors_changed (manager);
g_list_free_full (old_logical_monitors, g_object_unref);
}
static void
meta_monitor_manager_update_monitor_modes_derived (MetaMonitorManager *manager)
{
GList *l;
for (l = manager->monitors; l; l = l->next)
{
MetaMonitor *monitor = l->data;
meta_monitor_derive_current_mode (monitor);
}
}
void
meta_monitor_manager_update_logical_state_derived (MetaMonitorManager *manager,
MetaMonitorsConfig *config)
{
if (config)
manager->current_switch_config =
meta_monitors_config_get_switch_config (config);
else
manager->current_switch_config = META_MONITOR_SWITCH_CONFIG_UNKNOWN;
manager->layout_mode = META_LOGICAL_MONITOR_LAYOUT_MODE_PHYSICAL;
meta_monitor_manager_rebuild_logical_monitors_derived (manager, config);
}
void
meta_monitor_manager_rebuild_derived (MetaMonitorManager *manager,
MetaMonitorsConfig *config)
{
GList *old_logical_monitors;
meta_monitor_manager_update_monitor_modes_derived (manager);
if (manager->in_init)
return;
old_logical_monitors = manager->logical_monitors;
meta_monitor_manager_update_logical_state_derived (manager, config);
meta_monitor_manager_notify_monitors_changed (manager);
g_list_free_full (old_logical_monitors, g_object_unref);
}
void
meta_monitor_manager_reconfigure (MetaMonitorManager *manager)
{
meta_monitor_manager_ensure_configured (manager);
}
void
meta_monitor_manager_reload (MetaMonitorManager *manager)
{
MetaMonitorManagerPrivate *priv =
meta_monitor_manager_get_instance_private (manager);
g_clear_handle_id (&priv->reload_monitor_manager_id, g_source_remove);
meta_monitor_manager_read_current_state (manager);
meta_monitor_manager_reconfigure (manager);
}
static gboolean
calculate_viewport_matrix (MetaMonitorManager *manager,
MetaLogicalMonitor *logical_monitor,
gfloat viewport[6])
{
gfloat x, y, width, height;
x = (float) logical_monitor->rect.x / manager->screen_width;
y = (float) logical_monitor->rect.y / manager->screen_height;
width = (float) logical_monitor->rect.width / manager->screen_width;
height = (float) logical_monitor->rect.height / manager->screen_height;
viewport[0] = width;
viewport[1] = 0.0f;
viewport[2] = x;
viewport[3] = 0.0f;
viewport[4] = height;
viewport[5] = y;
return TRUE;
}
static inline void
multiply_matrix (float a[6],
float b[6],
float res[6])
{
res[0] = a[0] * b[0] + a[1] * b[3];
res[1] = a[0] * b[1] + a[1] * b[4];
res[2] = a[0] * b[2] + a[1] * b[5] + a[2];
res[3] = a[3] * b[0] + a[4] * b[3];
res[4] = a[3] * b[1] + a[4] * b[4];
res[5] = a[3] * b[2] + a[4] * b[5] + a[5];
}
gboolean
meta_monitor_manager_get_monitor_matrix (MetaMonitorManager *manager,
MetaMonitor *monitor,
MetaLogicalMonitor *logical_monitor,
gfloat matrix[6])
{
MetaMonitorTransform transform;
gfloat viewport[9];
if (!calculate_viewport_matrix (manager, logical_monitor, viewport))
return FALSE;
/* Get transform corrected for LCD panel-orientation. */
transform = logical_monitor->transform;
transform = meta_monitor_logical_to_crtc_transform (monitor, transform);
multiply_matrix (viewport, transform_matrices[transform],
matrix);
return TRUE;
}
/**
* meta_monitor_manager_get_monitor_for_connector:
* @manager: A #MetaMonitorManager
* @connector: A valid connector name
*
* Returns: The monitor index or -1 if @id isn't valid or the connector
* isn't associated with a logical monitor.
*/
gint
meta_monitor_manager_get_monitor_for_connector (MetaMonitorManager *manager,
const char *connector)
{
GList *l;
for (l = manager->monitors; l; l = l->next)
{
MetaMonitor *monitor = l->data;
if (meta_monitor_is_active (monitor) &&
g_str_equal (connector, meta_monitor_get_connector (monitor)))
return meta_monitor_get_logical_monitor (monitor)->number;
}
return -1;
}
2018-10-19 03:15:54 -04:00
/**
* meta_monitor_manager_get_is_builtin_display_on:
* @manager: A #MetaMonitorManager object
*
* Returns whether the built-in display (i.e. a laptop panel) is turned on.
*/
gboolean
meta_monitor_manager_get_is_builtin_display_on (MetaMonitorManager *manager)
{
MetaMonitor *laptop_panel;
g_return_val_if_fail (META_IS_MONITOR_MANAGER (manager), FALSE);
laptop_panel = meta_monitor_manager_get_laptop_panel (manager);
if (!laptop_panel)
return FALSE;
return meta_monitor_is_active (laptop_panel);
}
void
meta_monitor_manager_rotate_monitor (MetaMonitorManager *manager)
{
GError *error = NULL;
MetaMonitorsConfig *config =
meta_monitor_config_manager_create_for_rotate_monitor (manager->config_manager);
if (!config)
return;
if (!meta_monitor_manager_apply_monitors_config (manager,
config,
META_MONITORS_CONFIG_METHOD_TEMPORARY,
&error))
{
g_warning ("Failed to use rotate monitor configuration: %s",
error->message);
g_error_free (error);
}
g_object_unref (config);
}
typedef struct
{
MetaMonitorManager *monitor_manager;
MetaMonitorSwitchConfigType config_type;
} SwitchConfigData;
static gboolean
switch_config_idle_cb (gpointer user_data)
{
SwitchConfigData *data = user_data;
MetaMonitorManager *monitor_manager = data->monitor_manager;
MetaMonitorManagerPrivate *priv =
meta_monitor_manager_get_instance_private (monitor_manager);
MetaMonitorConfigManager *config_manager = monitor_manager->config_manager;
MetaMonitorsConfig *config;
g_autoptr (GError) error = NULL;
priv->switch_config_handle_id = 0;
config =
meta_monitor_config_manager_create_for_switch_config (config_manager,
data->config_type);
if (!config)
return G_SOURCE_REMOVE;
if (!meta_monitor_manager_apply_monitors_config (monitor_manager,
config,
META_MONITORS_CONFIG_METHOD_TEMPORARY,
&error))
{
g_warning ("Failed to use switch monitor configuration: %s",
error->message);
}
else
{
monitor_manager->current_switch_config = data->config_type;
}
return G_SOURCE_REMOVE;
}
void
meta_monitor_manager_switch_config (MetaMonitorManager *manager,
MetaMonitorSwitchConfigType config_type)
{
MetaMonitorManagerPrivate *priv =
meta_monitor_manager_get_instance_private (manager);
SwitchConfigData *data;
g_return_if_fail (config_type != META_MONITOR_SWITCH_CONFIG_UNKNOWN);
data = g_new0 (SwitchConfigData, 1);
data->monitor_manager = manager;
data->config_type = config_type;
g_clear_handle_id (&priv->switch_config_handle_id, g_source_remove);
priv->switch_config_handle_id = g_idle_add_full (G_PRIORITY_DEFAULT_IDLE,
switch_config_idle_cb,
data,
g_free);
}
gboolean
meta_monitor_manager_can_switch_config (MetaMonitorManager *manager)
{
return (!meta_backend_is_lid_closed (manager->backend) &&
g_list_length (manager->monitors) > 1);
}
MetaMonitorSwitchConfigType
meta_monitor_manager_get_switch_config (MetaMonitorManager *manager)
{
return manager->current_switch_config;
}
MetaMonitorConfigManager *
meta_monitor_manager_get_config_manager (MetaMonitorManager *manager)
{
return manager->config_manager;
}
gboolean
meta_monitor_manager_get_panel_orientation_managed (MetaMonitorManager *manager)
{
g_return_val_if_fail (META_IS_MONITOR_MANAGER (manager), FALSE);
return manager->panel_orientation_managed;
}
void
meta_monitor_manager_post_init (MetaMonitorManager *manager)
{
ClutterBackend *clutter_backend;
ClutterSeat *seat;
if (manager->privacy_screen_change_state ==
META_PRIVACY_SCREEN_CHANGE_STATE_INIT)
{
manager->privacy_screen_change_state =
META_PRIVACY_SCREEN_CHANGE_STATE_NONE;
}
apply_privacy_screen_settings (manager);
clutter_backend = meta_backend_get_clutter_backend (manager->backend);
seat = clutter_backend_get_default_seat (clutter_backend);
g_signal_connect_object (seat, "notify::touch-mode",
G_CALLBACK (update_panel_orientation_managed), manager,
G_CONNECT_SWAPPED);
}
MetaViewportInfo *
meta_monitor_manager_get_viewports (MetaMonitorManager *manager)
{
MetaBackend *backend = meta_monitor_manager_get_backend (manager);
MetaViewportInfo *info;
GArray *views, *scales;
GList *logical_monitors, *l;
views = g_array_new (FALSE, FALSE, sizeof (MtkRectangle));
scales = g_array_new (FALSE, FALSE, sizeof (float));
logical_monitors = meta_monitor_manager_get_logical_monitors (manager);
for (l = logical_monitors; l; l = l->next)
{
MetaLogicalMonitor *logical_monitor = l->data;
MtkRectangle rect;
float scale;
rect = logical_monitor->rect;
g_array_append_val (views, rect);
scale = logical_monitor->scale;
g_array_append_val (scales, scale);
}
info = meta_viewport_info_new ((MtkRectangle *) views->data,
(float *) scales->data,
views->len,
meta_backend_is_stage_views_scaled (backend));
g_array_unref (views);
g_array_unref (scales);
return info;
}
Introduce virtual monitors Virtual monitors are monitors that isn't backed by any monitor like hardware. It would typically be backed by e.g. a remote desktop service, or a network display. It is currently only supported by the native backend, and whether the X11 backend will ever see virtual monitors is an open question. This rest of this commit message describes how it works under the native backend. Each virutal monitor consists of virtualized mode setting components: * A virtual CRTC mode (MetaCrtcModeVirtual) * A virtual CRTC (MetaCrtcVirtual) * A virtual connector (MetaOutputVirtual) In difference to the corresponding mode setting objects that represents KMS objects, the virtual ones isn't directly tied to a MetaGpu, other than the CoglFramebuffer being part of the GPU context of the primary GPU, which is the case for all monitors no matter what GPU they are connected to. Part of the reason for this is that a MetaGpu in practice represents a mode setting device, and its CRTCs and outputs, are all backed by real mode setting objects, while a virtual monitor is only backed by a framebuffer that is tied to the primary GPU. Maybe this will be reevaluated in the future, but since a virtual monitor is not tied to any GPU currently, so is the case for the virtual mode setting objects. The native rendering backend, including the cursor renderer, is adapted to handle the situation where a CRTC does not have a GPU associated with it; this in practice means that it e.g. will not try to upload HW cursor buffers when the cursor is only on a virtual monitor. The same applies to the native renderer, which is made to avoid creating MetaOnscreenNative for views that are backed by virtual CRTCs, as well as to avoid trying to mode set on such views. Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1698>
2021-01-26 10:49:28 -05:00
GList *
meta_monitor_manager_get_virtual_monitors (MetaMonitorManager *manager)
{
MetaMonitorManagerPrivate *priv =
meta_monitor_manager_get_instance_private (manager);
return priv->virtual_monitors;
}