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mutter/src/backends/meta-monitor-config-manager.c
Daniel Drake 6267732bec monitor-manager: use MonitorsConfig to track switch_config 
When constructing MetaMonitorsConfig objects, store which type
of switch_config they are for (or UNKNOWN if it is not such
type of config).

Stop unconditionally setting current_switch_config to UNKNOWN when
handling monitors changed events. Instead, set it to the switch_config
type stored in the MonitorsConfig in the codepath that updates logical
state. In addition to being called in the hotplug case along the same
code flow that generates monitors changed events, this is also called
in the coldplug case where a secondary monitor was connected before
mutter was started.

When creating the default linear display config, create it as a
switch_config so that internal state gets updated to represent
linear mode when this config is used.

The previous behaviour of unconditionally resetting current_switch_config
to UNKNOWN was breaking the internal state machine for display config
switching, causing misbehaviour in gnome-shell's switchMonitor UI when
using display switch hotkeys. The lack of internal tracking when the
displays are already in the default "Join Displays" linear mode was
then causing the first display switch hotkey press to do nothing
(it would attempt to select "Join Displays" mode, but that was already
active).

Fixes: https://gitlab.gnome.org/GNOME/mutter/issues/281
https://gitlab.gnome.org/GNOME/mutter/merge_requests/213
2018-10-08 15:53:45 +08:00

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/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
/*
* Copyright (C) 2016 Red Hat
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
* 02111-1307, USA.
*/
#include "config.h"
#include "backends/meta-monitor-config-manager.h"
#include "backends/meta-backend-private.h"
#include "backends/meta-monitor-config-migration.h"
#include "backends/meta-monitor-config-store.h"
#include "backends/meta-monitor-manager-private.h"
#include "backends/meta-output.h"
#include "core/boxes-private.h"
#define CONFIG_HISTORY_MAX_SIZE 3
struct _MetaMonitorConfigManager
{
GObject parent;
MetaMonitorManager *monitor_manager;
MetaMonitorConfigStore *config_store;
MetaMonitorsConfig *current_config;
GQueue config_history;
};
G_DEFINE_TYPE (MetaMonitorConfigManager, meta_monitor_config_manager,
G_TYPE_OBJECT)
G_DEFINE_TYPE (MetaMonitorsConfig, meta_monitors_config,
G_TYPE_OBJECT)
static void
meta_crtc_info_free (MetaCrtcInfo *info);
static void
meta_output_info_free (MetaOutputInfo *info);
MetaMonitorConfigManager *
meta_monitor_config_manager_new (MetaMonitorManager *monitor_manager)
{
MetaMonitorConfigManager *config_manager;
config_manager = g_object_new (META_TYPE_MONITOR_CONFIG_MANAGER, NULL);
config_manager->monitor_manager = monitor_manager;
config_manager->config_store =
meta_monitor_config_store_new (monitor_manager);
return config_manager;
}
MetaMonitorConfigStore *
meta_monitor_config_manager_get_store (MetaMonitorConfigManager *config_manager)
{
return config_manager->config_store;
}
static gboolean
is_crtc_assigned (MetaCrtc *crtc,
GPtrArray *crtc_infos)
{
unsigned int i;
for (i = 0; i < crtc_infos->len; i++)
{
MetaCrtcInfo *assigned_crtc_info = g_ptr_array_index (crtc_infos, i);
if (assigned_crtc_info->crtc == crtc)
return TRUE;
}
return FALSE;
}
static MetaCrtc *
find_unassigned_crtc (MetaOutput *output,
GPtrArray *crtc_infos)
{
unsigned int i;
for (i = 0; i < output->n_possible_crtcs; i++)
{
MetaCrtc *crtc = output->possible_crtcs[i];
if (is_crtc_assigned (crtc, crtc_infos))
continue;
return crtc;
}
return NULL;
}
typedef struct
{
MetaMonitorManager *monitor_manager;
MetaLogicalMonitorConfig *logical_monitor_config;
MetaMonitorConfig *monitor_config;
GPtrArray *crtc_infos;
GPtrArray *output_infos;
} MonitorAssignmentData;
static gboolean
assign_monitor_crtc (MetaMonitor *monitor,
MetaMonitorMode *mode,
MetaMonitorCrtcMode *monitor_crtc_mode,
gpointer user_data,
GError **error)
{
MonitorAssignmentData *data = user_data;
MetaOutput *output;
MetaCrtc *crtc;
MetaMonitorTransform transform;
MetaMonitorTransform crtc_transform;
int crtc_x, crtc_y;
MetaCrtcInfo *crtc_info;
MetaOutputInfo *output_info;
MetaMonitorConfig *first_monitor_config;
gboolean assign_output_as_primary;
gboolean assign_output_as_presentation;
output = monitor_crtc_mode->output;
crtc = find_unassigned_crtc (output, data->crtc_infos);
if (!crtc)
{
MetaMonitorSpec *monitor_spec = meta_monitor_get_spec (monitor);
g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
"No available CRTC for monitor '%s %s' not found",
monitor_spec->vendor, monitor_spec->product);
return FALSE;
}
transform = data->logical_monitor_config->transform;
crtc_transform = meta_monitor_logical_to_crtc_transform (monitor, transform);
if (!meta_monitor_manager_is_transform_handled (data->monitor_manager,
crtc,
crtc_transform))
crtc_transform = META_MONITOR_TRANSFORM_NORMAL;
meta_monitor_calculate_crtc_pos (monitor, mode, output, crtc_transform,
&crtc_x, &crtc_y);
crtc_info = g_slice_new0 (MetaCrtcInfo);
*crtc_info = (MetaCrtcInfo) {
.crtc = crtc,
.mode = monitor_crtc_mode->crtc_mode,
.x = crtc_x,
.y = crtc_y,
.transform = crtc_transform,
.outputs = g_ptr_array_new ()
};
g_ptr_array_add (crtc_info->outputs, output);
/*
* Currently, MetaCrtcInfo are deliberately offset incorrectly to carry over
* logical monitor location inside the MetaCrtc struct, when in fact this
* depends on the framebuffer configuration. This will eventually be negated
* when setting the actual KMS mode.
*
* TODO: Remove this hack when we don't need to rely on MetaCrtc to pass
* logical monitor state.
*/
crtc_info->x += data->logical_monitor_config->layout.x;
crtc_info->y += data->logical_monitor_config->layout.y;
/*
* Only one output can be marked as primary (due to Xrandr limitation),
* so only mark the main output of the first monitor in the logical monitor
* as such.
*/
first_monitor_config = data->logical_monitor_config->monitor_configs->data;
if (data->logical_monitor_config->is_primary &&
data->monitor_config == first_monitor_config &&
meta_monitor_get_main_output (monitor) == output)
assign_output_as_primary = TRUE;
else
assign_output_as_primary = FALSE;
if (data->logical_monitor_config->is_presentation)
assign_output_as_presentation = TRUE;
else
assign_output_as_presentation = FALSE;
output_info = g_slice_new0 (MetaOutputInfo);
*output_info = (MetaOutputInfo) {
.output = output,
.is_primary = assign_output_as_primary,
.is_presentation = assign_output_as_presentation,
.is_underscanning = data->monitor_config->enable_underscanning
};
g_ptr_array_add (data->crtc_infos, crtc_info);
g_ptr_array_add (data->output_infos, output_info);
return TRUE;
}
static gboolean
assign_monitor_crtcs (MetaMonitorManager *manager,
MetaLogicalMonitorConfig *logical_monitor_config,
MetaMonitorConfig *monitor_config,
GPtrArray *crtc_infos,
GPtrArray *output_infos,
GError **error)
{
MetaMonitorSpec *monitor_spec = monitor_config->monitor_spec;
MetaMonitorModeSpec *monitor_mode_spec = monitor_config->mode_spec;
MetaMonitor *monitor;
MetaMonitorMode *monitor_mode;
MonitorAssignmentData data;
monitor = meta_monitor_manager_get_monitor_from_spec (manager, monitor_spec);
if (!monitor)
{
g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
"Configured monitor '%s %s' not found",
monitor_spec->vendor, monitor_spec->product);
return FALSE;
}
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,
"Invalid mode %dx%d (%f) for monitor '%s %s'",
monitor_mode_spec->width, monitor_mode_spec->height,
monitor_mode_spec->refresh_rate,
monitor_spec->vendor, monitor_spec->product);
return FALSE;
}
data = (MonitorAssignmentData) {
.monitor_manager = manager,
.logical_monitor_config = logical_monitor_config,
.monitor_config = monitor_config,
.crtc_infos = crtc_infos,
.output_infos = output_infos
};
if (!meta_monitor_mode_foreach_crtc (monitor, monitor_mode,
assign_monitor_crtc,
&data,
error))
return FALSE;
return TRUE;
}
static gboolean
assign_logical_monitor_crtcs (MetaMonitorManager *manager,
MetaLogicalMonitorConfig *logical_monitor_config,
GPtrArray *crtc_infos,
GPtrArray *output_infos,
GError **error)
{
GList *l;
for (l = logical_monitor_config->monitor_configs; l; l = l->next)
{
MetaMonitorConfig *monitor_config = l->data;
if (!assign_monitor_crtcs (manager,
logical_monitor_config,
monitor_config,
crtc_infos, output_infos,
error))
return FALSE;
}
return TRUE;
}
gboolean
meta_monitor_config_manager_assign (MetaMonitorManager *manager,
MetaMonitorsConfig *config,
GPtrArray **out_crtc_infos,
GPtrArray **out_output_infos,
GError **error)
{
GPtrArray *crtc_infos;
GPtrArray *output_infos;
GList *l;
crtc_infos =
g_ptr_array_new_with_free_func ((GDestroyNotify) meta_crtc_info_free);
output_infos =
g_ptr_array_new_with_free_func ((GDestroyNotify) meta_output_info_free);
for (l = config->logical_monitor_configs; l; l = l->next)
{
MetaLogicalMonitorConfig *logical_monitor_config = l->data;
if (!assign_logical_monitor_crtcs (manager, logical_monitor_config,
crtc_infos, output_infos,
error))
{
g_ptr_array_free (crtc_infos, TRUE);
g_ptr_array_free (output_infos, TRUE);
return FALSE;
}
}
*out_crtc_infos = crtc_infos;
*out_output_infos = output_infos;
return TRUE;
}
static gboolean
is_lid_closed (MetaMonitorManager *monitor_manager)
{
MetaBackend *backend;
backend = meta_monitor_manager_get_backend (monitor_manager);
return meta_backend_is_lid_closed (backend);
}
MetaMonitorsConfigKey *
meta_create_monitors_config_key_for_current_state (MetaMonitorManager *monitor_manager)
{
MetaMonitorsConfigKey *config_key;
GList *l;
GList *monitor_specs;
monitor_specs = NULL;
for (l = monitor_manager->monitors; l; l = l->next)
{
MetaMonitor *monitor = l->data;
MetaMonitorSpec *monitor_spec;
if (meta_monitor_is_laptop_panel (monitor) &&
is_lid_closed (monitor_manager))
continue;
monitor_spec = meta_monitor_spec_clone (meta_monitor_get_spec (monitor));
monitor_specs = g_list_prepend (monitor_specs, monitor_spec);
}
if (!monitor_specs)
return NULL;
monitor_specs = g_list_sort (monitor_specs,
(GCompareFunc) meta_monitor_spec_compare);
config_key = g_new0 (MetaMonitorsConfigKey, 1);
*config_key = (MetaMonitorsConfigKey) {
.monitor_specs = monitor_specs
};
return config_key;
}
MetaMonitorsConfig *
meta_monitor_config_manager_get_stored (MetaMonitorConfigManager *config_manager)
{
MetaMonitorManager *monitor_manager = config_manager->monitor_manager;
MetaMonitorsConfigKey *config_key;
MetaMonitorsConfig *config;
GError *error = NULL;
config_key =
meta_create_monitors_config_key_for_current_state (monitor_manager);
if (!config_key)
return NULL;
config = meta_monitor_config_store_lookup (config_manager->config_store,
config_key);
meta_monitors_config_key_free (config_key);
if (!config)
return NULL;
if (config->flags & META_MONITORS_CONFIG_FLAG_MIGRATED)
{
if (!meta_finish_monitors_config_migration (monitor_manager, config,
&error))
{
g_warning ("Failed to finish monitors config migration: %s",
error->message);
g_error_free (error);
meta_monitor_config_store_remove (config_manager->config_store, config);
return NULL;
}
}
return config;
}
typedef enum _MonitorMatchRule
{
MONITOR_MATCH_ALL = 0,
MONITOR_MATCH_EXTERNAL = (1 << 0)
} MonitorMatchRule;
static MetaMonitor *
find_monitor_with_highest_preferred_resolution (MetaMonitorManager *monitor_manager,
MonitorMatchRule match_rule)
{
GList *monitors;
GList *l;
int largest_area = 0;
MetaMonitor *largest_monitor = NULL;
monitors = meta_monitor_manager_get_monitors (monitor_manager);
for (l = monitors; l; l = l->next)
{
MetaMonitor *monitor = l->data;
MetaMonitorMode *mode;
int width, height;
int area;
if (match_rule & MONITOR_MATCH_EXTERNAL)
{
if (meta_monitor_is_laptop_panel (monitor))
continue;
}
mode = meta_monitor_get_preferred_mode (monitor);
meta_monitor_mode_get_resolution (mode, &width, &height);
area = width * height;
if (area > largest_area)
{
largest_area = area;
largest_monitor = monitor;
}
}
return largest_monitor;
}
/*
* Try to find the primary monitor. The priority of classification is:
*
* 1. Find the primary monitor as reported by the underlying system,
* 2. Find the laptop panel
* 3. Find the external monitor with highest resolution
*
* If the laptop lid is closed, exclude the laptop panel from possible
* alternatives, except if no other alternatives exist.
*/
static MetaMonitor *
find_primary_monitor (MetaMonitorManager *monitor_manager)
{
MetaMonitor *monitor;
if (is_lid_closed (monitor_manager))
{
monitor = meta_monitor_manager_get_primary_monitor (monitor_manager);
if (monitor && !meta_monitor_is_laptop_panel (monitor))
return monitor;
monitor =
find_monitor_with_highest_preferred_resolution (monitor_manager,
MONITOR_MATCH_EXTERNAL);
if (monitor)
return monitor;
return find_monitor_with_highest_preferred_resolution (monitor_manager,
MONITOR_MATCH_ALL);
}
else
{
monitor = meta_monitor_manager_get_primary_monitor (monitor_manager);
if (monitor)
return monitor;
monitor = meta_monitor_manager_get_laptop_panel (monitor_manager);
if (monitor)
return monitor;
return find_monitor_with_highest_preferred_resolution (monitor_manager,
MONITOR_MATCH_ALL);
}
}
static MetaMonitorConfig *
create_monitor_config (MetaMonitor *monitor,
MetaMonitorMode *mode)
{
MetaMonitorSpec *monitor_spec;
MetaMonitorModeSpec *mode_spec;
MetaMonitorConfig *monitor_config;
monitor_spec = meta_monitor_get_spec (monitor);
mode_spec = meta_monitor_mode_get_spec (mode);
monitor_config = g_new0 (MetaMonitorConfig, 1);
*monitor_config = (MetaMonitorConfig) {
.monitor_spec = meta_monitor_spec_clone (monitor_spec),
.mode_spec = g_memdup (mode_spec, sizeof (MetaMonitorModeSpec)),
.enable_underscanning = meta_monitor_is_underscanning (monitor)
};
return monitor_config;
}
static MetaLogicalMonitorConfig *
create_preferred_logical_monitor_config (MetaMonitorManager *monitor_manager,
MetaMonitor *monitor,
int x,
int y,
MetaLogicalMonitorConfig *primary_logical_monitor_config,
MetaLogicalMonitorLayoutMode layout_mode)
{
MetaMonitorMode *mode;
int width, height;
float scale;
MetaMonitorConfig *monitor_config;
MetaLogicalMonitorConfig *logical_monitor_config;
mode = meta_monitor_get_preferred_mode (monitor);
meta_monitor_mode_get_resolution (mode, &width, &height);
if ((meta_monitor_manager_get_capabilities (monitor_manager) &
META_MONITOR_MANAGER_CAPABILITY_GLOBAL_SCALE_REQUIRED) &&
primary_logical_monitor_config)
scale = primary_logical_monitor_config->scale;
else
scale = meta_monitor_manager_calculate_monitor_mode_scale (monitor_manager,
monitor,
mode);
switch (layout_mode)
{
case META_LOGICAL_MONITOR_LAYOUT_MODE_LOGICAL:
width /= scale;
height /= scale;
break;
case META_LOGICAL_MONITOR_LAYOUT_MODE_PHYSICAL:
break;
}
monitor_config = create_monitor_config (monitor, mode);
logical_monitor_config = g_new0 (MetaLogicalMonitorConfig, 1);
*logical_monitor_config = (MetaLogicalMonitorConfig) {
.layout = (MetaRectangle) {
.x = x,
.y = y,
.width = width,
.height = height
},
.scale = scale,
.monitor_configs = g_list_append (NULL, monitor_config)
};
return logical_monitor_config;
}
MetaMonitorsConfig *
meta_monitor_config_manager_create_linear (MetaMonitorConfigManager *config_manager)
{
MetaMonitorManager *monitor_manager = config_manager->monitor_manager;
GList *logical_monitor_configs;
MetaMonitor *primary_monitor;
MetaLogicalMonitorLayoutMode layout_mode;
MetaLogicalMonitorConfig *primary_logical_monitor_config;
int x;
GList *monitors;
GList *l;
primary_monitor = find_primary_monitor (monitor_manager);
if (!primary_monitor)
return NULL;
layout_mode = meta_monitor_manager_get_default_layout_mode (monitor_manager);
primary_logical_monitor_config =
create_preferred_logical_monitor_config (monitor_manager,
primary_monitor,
0, 0,
NULL,
layout_mode);
primary_logical_monitor_config->is_primary = TRUE;
logical_monitor_configs = g_list_append (NULL,
primary_logical_monitor_config);
x = primary_logical_monitor_config->layout.width;
monitors = meta_monitor_manager_get_monitors (monitor_manager);
for (l = monitors; l; l = l->next)
{
MetaMonitor *monitor = l->data;
MetaLogicalMonitorConfig *logical_monitor_config;
if (monitor == primary_monitor)
continue;
if (meta_monitor_is_laptop_panel (monitor) &&
is_lid_closed (monitor_manager))
continue;
logical_monitor_config =
create_preferred_logical_monitor_config (monitor_manager,
monitor,
x, 0,
primary_logical_monitor_config,
layout_mode);
logical_monitor_configs = g_list_append (logical_monitor_configs,
logical_monitor_config);
x += logical_monitor_config->layout.width;
}
return meta_monitors_config_new (monitor_manager,
logical_monitor_configs,
layout_mode,
META_MONITORS_CONFIG_FLAG_NONE);
}
MetaMonitorsConfig *
meta_monitor_config_manager_create_fallback (MetaMonitorConfigManager *config_manager)
{
MetaMonitorManager *monitor_manager = config_manager->monitor_manager;
MetaMonitor *primary_monitor;
GList *logical_monitor_configs;
MetaLogicalMonitorLayoutMode layout_mode;
MetaLogicalMonitorConfig *primary_logical_monitor_config;
primary_monitor = find_primary_monitor (monitor_manager);
if (!primary_monitor)
return NULL;
layout_mode = meta_monitor_manager_get_default_layout_mode (monitor_manager);
primary_logical_monitor_config =
create_preferred_logical_monitor_config (monitor_manager,
primary_monitor,
0, 0,
NULL,
layout_mode);
primary_logical_monitor_config->is_primary = TRUE;
logical_monitor_configs = g_list_append (NULL,
primary_logical_monitor_config);
return meta_monitors_config_new (monitor_manager,
logical_monitor_configs,
layout_mode,
META_MONITORS_CONFIG_FLAG_NONE);
}
MetaMonitorsConfig *
meta_monitor_config_manager_create_suggested (MetaMonitorConfigManager *config_manager)
{
MetaMonitorManager *monitor_manager = config_manager->monitor_manager;
MetaLogicalMonitorConfig *primary_logical_monitor_config = NULL;
MetaMonitor *primary_monitor;
MetaLogicalMonitorLayoutMode layout_mode;
GList *logical_monitor_configs;
GList *region;
int x, y;
GList *monitors;
GList *l;
primary_monitor = find_primary_monitor (monitor_manager);
if (!primary_monitor)
return NULL;
if (!meta_monitor_get_suggested_position (primary_monitor, &x, &y))
return NULL;
layout_mode = meta_monitor_manager_get_default_layout_mode (monitor_manager);
primary_logical_monitor_config =
create_preferred_logical_monitor_config (monitor_manager,
primary_monitor,
x, y,
NULL,
layout_mode);
primary_logical_monitor_config->is_primary = TRUE;
logical_monitor_configs = g_list_append (NULL,
primary_logical_monitor_config);
region = g_list_prepend (NULL, &primary_logical_monitor_config->layout);
monitors = meta_monitor_manager_get_monitors (monitor_manager);
for (l = monitors; l; l = l->next)
{
MetaMonitor *monitor = l->data;
MetaLogicalMonitorConfig *logical_monitor_config;
if (monitor == primary_monitor)
continue;
if (!meta_monitor_get_suggested_position (monitor, &x, &y))
continue;
logical_monitor_config =
create_preferred_logical_monitor_config (monitor_manager,
monitor,
x, y,
primary_logical_monitor_config,
layout_mode);
logical_monitor_configs = g_list_append (logical_monitor_configs,
logical_monitor_config);
if (meta_rectangle_overlaps_with_region (region,
&logical_monitor_config->layout))
{
g_warning ("Suggested monitor config has overlapping region, rejecting");
g_list_free (region);
g_list_free_full (logical_monitor_configs,
(GDestroyNotify) meta_logical_monitor_config_free);
return NULL;
}
region = g_list_prepend (region, &logical_monitor_config->layout);
}
g_list_free (region);
if (!logical_monitor_configs)
return NULL;
return meta_monitors_config_new (monitor_manager,
logical_monitor_configs,
layout_mode,
META_MONITORS_CONFIG_FLAG_NONE);
}
static MetaMonitorsConfig *
create_for_builtin_display_rotation (MetaMonitorConfigManager *config_manager,
gboolean rotate,
MetaMonitorTransform transform)
{
MetaMonitorManager *monitor_manager = config_manager->monitor_manager;
MetaLogicalMonitorConfig *logical_monitor_config;
MetaLogicalMonitorConfig *current_logical_monitor_config;
GList *logical_monitor_configs;
MetaLogicalMonitorLayoutMode layout_mode;
MetaMonitorConfig *monitor_config;
MetaMonitorConfig *current_monitor_config;
if (!meta_monitor_manager_get_is_builtin_display_on (config_manager->monitor_manager))
return NULL;
if (!config_manager->current_config)
return NULL;
if (g_list_length (config_manager->current_config->logical_monitor_configs) != 1)
return NULL;
current_logical_monitor_config = config_manager->current_config->logical_monitor_configs->data;
if (rotate)
transform = (current_logical_monitor_config->transform + 1) % META_MONITOR_TRANSFORM_FLIPPED;
else
{
/*
* The transform coming from the accelerometer should be applied to
* the crtc as is, without taking panel-orientation into account, this
* is done so that non panel-orientation aware desktop environments do the
* right thing. Mutter corrects for panel-orientation when applying the
* transform from a logical-monitor-config, so we must convert here.
*/
MetaMonitor *panel =
meta_monitor_manager_get_laptop_panel (config_manager->monitor_manager);
transform = meta_monitor_crtc_to_logical_transform (panel, transform);
}
if (current_logical_monitor_config->transform == transform)
return NULL;
if (g_list_length (current_logical_monitor_config->monitor_configs) != 1)
return NULL;
current_monitor_config = current_logical_monitor_config->monitor_configs->data;
monitor_config = g_new0 (MetaMonitorConfig, 1);
*monitor_config = (MetaMonitorConfig) {
.monitor_spec = meta_monitor_spec_clone (current_monitor_config->monitor_spec),
.mode_spec = g_memdup (current_monitor_config->mode_spec, sizeof (MetaMonitorModeSpec)),
.enable_underscanning = current_monitor_config->enable_underscanning
};
logical_monitor_config = g_memdup (current_logical_monitor_config, sizeof (MetaLogicalMonitorConfig));
logical_monitor_config->monitor_configs = g_list_append (NULL, monitor_config);
logical_monitor_config->transform = transform;
if (meta_monitor_transform_is_rotated (current_logical_monitor_config->transform) !=
meta_monitor_transform_is_rotated (logical_monitor_config->transform))
{
int temp = logical_monitor_config->layout.width;
logical_monitor_config->layout.width = logical_monitor_config->layout.height;
logical_monitor_config->layout.height = temp;
}
logical_monitor_configs = g_list_append (NULL, logical_monitor_config);
layout_mode = config_manager->current_config->layout_mode;
return meta_monitors_config_new (monitor_manager,
logical_monitor_configs,
layout_mode,
META_MONITORS_CONFIG_FLAG_NONE);
}
MetaMonitorsConfig *
meta_monitor_config_manager_create_for_orientation (MetaMonitorConfigManager *config_manager,
MetaMonitorTransform transform)
{
return create_for_builtin_display_rotation (config_manager, FALSE, transform);
}
MetaMonitorsConfig *
meta_monitor_config_manager_create_for_rotate_monitor (MetaMonitorConfigManager *config_manager)
{
return create_for_builtin_display_rotation (config_manager, TRUE, META_MONITOR_TRANSFORM_NORMAL);
}
static MetaMonitorsConfig *
create_for_switch_config_all_mirror (MetaMonitorConfigManager *config_manager)
{
MetaMonitorManager *monitor_manager = config_manager->monitor_manager;
MetaLogicalMonitorLayoutMode layout_mode;
MetaLogicalMonitorConfig *logical_monitor_config = NULL;
GList *logical_monitor_configs;
GList *monitor_configs = NULL;
gint common_mode_w = 0, common_mode_h = 0;
float best_scale = 1.0;
MetaMonitor *monitor;
GList *modes;
GList *monitors;
GList *l;
monitors = meta_monitor_manager_get_monitors (monitor_manager);
monitor = monitors->data;
modes = meta_monitor_get_modes (monitor);
for (l = modes; l; l = l->next)
{
MetaMonitorMode *mode = l->data;
gboolean common_mode_size = TRUE;
gint mode_w, mode_h;
GList *ll;
meta_monitor_mode_get_resolution (mode, &mode_w, &mode_h);
for (ll = monitors->next; ll; ll = ll->next)
{
MetaMonitor *monitor_b = ll->data;
gboolean have_same_mode_size = FALSE;
GList *mm;
for (mm = meta_monitor_get_modes (monitor_b); mm; mm = mm->next)
{
MetaMonitorMode *mode_b = mm->data;
gint mode_b_w, mode_b_h;
meta_monitor_mode_get_resolution (mode_b, &mode_b_w, &mode_b_h);
if (mode_w == mode_b_w &&
mode_h == mode_b_h)
{
have_same_mode_size = TRUE;
break;
}
}
if (!have_same_mode_size)
{
common_mode_size = FALSE;
break;
}
}
if (common_mode_size &&
common_mode_w * common_mode_h < mode_w * mode_h)
{
common_mode_w = mode_w;
common_mode_h = mode_h;
}
}
if (common_mode_w == 0 || common_mode_h == 0)
return NULL;
for (l = monitors; l; l = l->next)
{
MetaMonitor *monitor = l->data;
MetaMonitorMode *mode = NULL;
GList *ll;
float scale;
for (ll = meta_monitor_get_modes (monitor); ll; ll = ll->next)
{
gint mode_w, mode_h;
mode = ll->data;
meta_monitor_mode_get_resolution (mode, &mode_w, &mode_h);
if (mode_w == common_mode_w && mode_h == common_mode_h)
break;
}
if (!mode)
continue;
scale = meta_monitor_manager_calculate_monitor_mode_scale (monitor_manager, monitor, mode);
best_scale = MAX (best_scale, scale);
monitor_configs = g_list_prepend (monitor_configs, create_monitor_config (monitor, mode));
}
logical_monitor_config = g_new0 (MetaLogicalMonitorConfig, 1);
*logical_monitor_config = (MetaLogicalMonitorConfig) {
.layout = (MetaRectangle) {
.x = 0,
.y = 0,
.width = common_mode_w,
.height = common_mode_h
},
.scale = best_scale,
.monitor_configs = monitor_configs
};
logical_monitor_configs = g_list_append (NULL, logical_monitor_config);
layout_mode = meta_monitor_manager_get_default_layout_mode (monitor_manager);
return meta_monitors_config_new (monitor_manager,
logical_monitor_configs,
layout_mode,
META_MONITORS_CONFIG_FLAG_NONE);
}
static MetaMonitorsConfig *
create_for_switch_config_external (MetaMonitorConfigManager *config_manager)
{
MetaMonitorManager *monitor_manager = config_manager->monitor_manager;
GList *logical_monitor_configs = NULL;
int x = 0;
MetaLogicalMonitorLayoutMode layout_mode;
GList *monitors;
GList *l;
layout_mode = meta_monitor_manager_get_default_layout_mode (monitor_manager);
monitors = meta_monitor_manager_get_monitors (monitor_manager);
for (l = monitors; l; l = l->next)
{
MetaMonitor *monitor = l->data;
MetaLogicalMonitorConfig *logical_monitor_config;
if (meta_monitor_is_laptop_panel (monitor))
continue;
logical_monitor_config =
create_preferred_logical_monitor_config (monitor_manager,
monitor,
x, 0,
NULL,
layout_mode);
logical_monitor_configs = g_list_append (logical_monitor_configs,
logical_monitor_config);
if (x == 0)
logical_monitor_config->is_primary = TRUE;
x += logical_monitor_config->layout.width;
}
return meta_monitors_config_new (monitor_manager,
logical_monitor_configs,
layout_mode,
META_MONITORS_CONFIG_FLAG_NONE);
}
static MetaMonitorsConfig *
create_for_switch_config_builtin (MetaMonitorConfigManager *config_manager)
{
MetaMonitorManager *monitor_manager = config_manager->monitor_manager;
MetaLogicalMonitorLayoutMode layout_mode;
GList *logical_monitor_configs;
MetaLogicalMonitorConfig *primary_logical_monitor_config;
MetaMonitor *monitor;
monitor = meta_monitor_manager_get_laptop_panel (monitor_manager);
if (!monitor)
return NULL;
layout_mode = meta_monitor_manager_get_default_layout_mode (monitor_manager);
primary_logical_monitor_config =
create_preferred_logical_monitor_config (monitor_manager,
monitor,
0, 0,
NULL,
layout_mode);
primary_logical_monitor_config->is_primary = TRUE;
logical_monitor_configs = g_list_append (NULL,
primary_logical_monitor_config);
return meta_monitors_config_new (monitor_manager,
logical_monitor_configs,
layout_mode,
META_MONITORS_CONFIG_FLAG_NONE);
}
MetaMonitorsConfig *
meta_monitor_config_manager_create_for_switch_config (MetaMonitorConfigManager *config_manager,
MetaMonitorSwitchConfigType config_type)
{
MetaMonitorManager *monitor_manager = config_manager->monitor_manager;
MetaMonitorsConfig *config;
if (!meta_monitor_manager_can_switch_config (monitor_manager))
return NULL;
switch (config_type)
{
case META_MONITOR_SWITCH_CONFIG_ALL_MIRROR:
config = create_for_switch_config_all_mirror (config_manager);
break;
case META_MONITOR_SWITCH_CONFIG_ALL_LINEAR:
config = meta_monitor_config_manager_create_linear (config_manager);
break;
case META_MONITOR_SWITCH_CONFIG_EXTERNAL:
config = create_for_switch_config_external (config_manager);
break;
case META_MONITOR_SWITCH_CONFIG_BUILTIN:
config = create_for_switch_config_builtin (config_manager);
break;
case META_MONITOR_SWITCH_CONFIG_UNKNOWN:
default:
g_warn_if_reached ();
return NULL;
}
if (config)
meta_monitors_config_set_switch_config (config, config_type);
return config;
}
void
meta_monitor_config_manager_set_current (MetaMonitorConfigManager *config_manager,
MetaMonitorsConfig *config)
{
if (config_manager->current_config)
{
g_queue_push_head (&config_manager->config_history,
g_object_ref (config_manager->current_config));
if (g_queue_get_length (&config_manager->config_history) >
CONFIG_HISTORY_MAX_SIZE)
g_object_unref (g_queue_pop_tail (&config_manager->config_history));
}
g_set_object (&config_manager->current_config, config);
}
void
meta_monitor_config_manager_save_current (MetaMonitorConfigManager *config_manager)
{
g_return_if_fail (config_manager->current_config);
meta_monitor_config_store_add (config_manager->config_store,
config_manager->current_config);
}
MetaMonitorsConfig *
meta_monitor_config_manager_get_current (MetaMonitorConfigManager *config_manager)
{
return config_manager->current_config;
}
MetaMonitorsConfig *
meta_monitor_config_manager_pop_previous (MetaMonitorConfigManager *config_manager)
{
return g_queue_pop_head (&config_manager->config_history);
}
MetaMonitorsConfig *
meta_monitor_config_manager_get_previous (MetaMonitorConfigManager *config_manager)
{
return g_queue_peek_head (&config_manager->config_history);
}
void
meta_monitor_config_manager_clear_history (MetaMonitorConfigManager *config_manager)
{
g_queue_foreach (&config_manager->config_history, (GFunc) g_object_unref, NULL);
g_queue_clear (&config_manager->config_history);
}
static void
meta_monitor_config_manager_dispose (GObject *object)
{
MetaMonitorConfigManager *config_manager =
META_MONITOR_CONFIG_MANAGER (object);
g_clear_object (&config_manager->current_config);
meta_monitor_config_manager_clear_history (config_manager);
G_OBJECT_CLASS (meta_monitor_config_manager_parent_class)->dispose (object);
}
static void
meta_monitor_config_manager_init (MetaMonitorConfigManager *config_manager)
{
g_queue_init (&config_manager->config_history);
}
static void
meta_monitor_config_manager_class_init (MetaMonitorConfigManagerClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->dispose = meta_monitor_config_manager_dispose;
}
void
meta_monitor_config_free (MetaMonitorConfig *monitor_config)
{
meta_monitor_spec_free (monitor_config->monitor_spec);
g_free (monitor_config->mode_spec);
g_free (monitor_config);
}
void
meta_logical_monitor_config_free (MetaLogicalMonitorConfig *logical_monitor_config)
{
g_list_free_full (logical_monitor_config->monitor_configs,
(GDestroyNotify) meta_monitor_config_free);
g_free (logical_monitor_config);
}
static MetaMonitorsConfigKey *
meta_monitors_config_key_new (GList *logical_monitor_configs,
GList *disabled_monitor_specs)
{
MetaMonitorsConfigKey *config_key;
GList *monitor_specs;
GList *l;
monitor_specs = NULL;
for (l = logical_monitor_configs; l; l = l->next)
{
MetaLogicalMonitorConfig *logical_monitor_config = l->data;
GList *k;
for (k = logical_monitor_config->monitor_configs; k; k = k->next)
{
MetaMonitorConfig *monitor_config = k->data;
MetaMonitorSpec *monitor_spec;
monitor_spec = meta_monitor_spec_clone (monitor_config->monitor_spec);
monitor_specs = g_list_prepend (monitor_specs, monitor_spec);
}
}
for (l = disabled_monitor_specs; l; l = l->next)
{
MetaMonitorSpec *monitor_spec = l->data;
monitor_spec = meta_monitor_spec_clone (monitor_spec);
monitor_specs = g_list_prepend (monitor_specs, monitor_spec);
}
monitor_specs = g_list_sort (monitor_specs,
(GCompareFunc) meta_monitor_spec_compare);
config_key = g_new0 (MetaMonitorsConfigKey, 1);
*config_key = (MetaMonitorsConfigKey) {
.monitor_specs = monitor_specs
};
return config_key;
}
void
meta_monitors_config_key_free (MetaMonitorsConfigKey *config_key)
{
g_list_free_full (config_key->monitor_specs,
(GDestroyNotify) meta_monitor_spec_free);
g_free (config_key);
}
unsigned int
meta_monitors_config_key_hash (gconstpointer data)
{
const MetaMonitorsConfigKey *config_key = data;
GList *l;
unsigned long hash;
hash = 0;
for (l = config_key->monitor_specs; l; l = l->next)
{
MetaMonitorSpec *monitor_spec = l->data;
hash ^= (g_str_hash (monitor_spec->connector) ^
g_str_hash (monitor_spec->vendor) ^
g_str_hash (monitor_spec->product) ^
g_str_hash (monitor_spec->serial));
}
return hash;
}
gboolean
meta_monitors_config_key_equal (gconstpointer data_a,
gconstpointer data_b)
{
const MetaMonitorsConfigKey *config_key_a = data_a;
const MetaMonitorsConfigKey *config_key_b = data_b;
GList *l_a, *l_b;
for (l_a = config_key_a->monitor_specs, l_b = config_key_b->monitor_specs;
l_a && l_b;
l_a = l_a->next, l_b = l_b->next)
{
MetaMonitorSpec *monitor_spec_a = l_a->data;
MetaMonitorSpec *monitor_spec_b = l_b->data;
if (!meta_monitor_spec_equals (monitor_spec_a, monitor_spec_b))
return FALSE;
}
if (l_a || l_b)
return FALSE;
return TRUE;
}
MetaMonitorSwitchConfigType
meta_monitors_config_get_switch_config (MetaMonitorsConfig *config)
{
return config->switch_config;
}
void
meta_monitors_config_set_switch_config (MetaMonitorsConfig *config,
MetaMonitorSwitchConfigType switch_config)
{
config->switch_config = switch_config;
}
MetaMonitorsConfig *
meta_monitors_config_new_full (GList *logical_monitor_configs,
GList *disabled_monitor_specs,
MetaLogicalMonitorLayoutMode layout_mode,
MetaMonitorsConfigFlag flags)
{
MetaMonitorsConfig *config;
config = g_object_new (META_TYPE_MONITORS_CONFIG, NULL);
config->logical_monitor_configs = logical_monitor_configs;
config->disabled_monitor_specs = disabled_monitor_specs;
config->key = meta_monitors_config_key_new (logical_monitor_configs,
disabled_monitor_specs);
config->layout_mode = layout_mode;
config->flags = flags;
config->switch_config = META_MONITOR_SWITCH_CONFIG_UNKNOWN;
return config;
}
MetaMonitorsConfig *
meta_monitors_config_new (MetaMonitorManager *monitor_manager,
GList *logical_monitor_configs,
MetaLogicalMonitorLayoutMode layout_mode,
MetaMonitorsConfigFlag flags)
{
GList *disabled_monitor_specs = NULL;
GList *monitors;
GList *l;
monitors = meta_monitor_manager_get_monitors (monitor_manager);
for (l = monitors; l; l = l->next)
{
MetaMonitor *monitor = l->data;
MetaMonitorSpec *monitor_spec;
if (is_lid_closed (monitor_manager) &&
meta_monitor_is_laptop_panel (monitor))
continue;
monitor_spec = meta_monitor_get_spec (monitor);
if (meta_logical_monitor_configs_have_monitor (logical_monitor_configs,
monitor_spec))
continue;
disabled_monitor_specs =
g_list_prepend (disabled_monitor_specs,
meta_monitor_spec_clone (monitor_spec));
}
return meta_monitors_config_new_full (logical_monitor_configs,
disabled_monitor_specs,
layout_mode,
flags);
}
static void
meta_monitors_config_finalize (GObject *object)
{
MetaMonitorsConfig *config = META_MONITORS_CONFIG (object);
meta_monitors_config_key_free (config->key);
g_list_free_full (config->logical_monitor_configs,
(GDestroyNotify) meta_logical_monitor_config_free);
g_list_free_full (config->disabled_monitor_specs,
(GDestroyNotify) meta_monitor_spec_free);
G_OBJECT_CLASS (meta_monitors_config_parent_class)->finalize (object);
}
static void
meta_monitors_config_init (MetaMonitorsConfig *config)
{
}
static void
meta_monitors_config_class_init (MetaMonitorsConfigClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->finalize = meta_monitors_config_finalize;
}
static void
meta_crtc_info_free (MetaCrtcInfo *info)
{
g_ptr_array_free (info->outputs, TRUE);
g_slice_free (MetaCrtcInfo, info);
}
static void
meta_output_info_free (MetaOutputInfo *info)
{
g_slice_free (MetaOutputInfo, info);
}
gboolean
meta_verify_monitor_mode_spec (MetaMonitorModeSpec *monitor_mode_spec,
GError **error)
{
if (monitor_mode_spec->width > 0 &&
monitor_mode_spec->height > 0 &&
monitor_mode_spec->refresh_rate > 0.0f)
{
return TRUE;
}
else
{
g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
"Monitor mode invalid");
return FALSE;
}
}
gboolean
meta_verify_monitor_spec (MetaMonitorSpec *monitor_spec,
GError **error)
{
if (monitor_spec->connector &&
monitor_spec->vendor &&
monitor_spec->product &&
monitor_spec->serial)
{
return TRUE;
}
else
{
g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
"Monitor spec incomplete");
return FALSE;
}
}
gboolean
meta_verify_monitor_config (MetaMonitorConfig *monitor_config,
GError **error)
{
if (monitor_config->monitor_spec && monitor_config->mode_spec)
{
return TRUE;
}
else
{
g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
"Monitor config incomplete");
return FALSE;
}
}
gboolean
meta_verify_logical_monitor_config (MetaLogicalMonitorConfig *logical_monitor_config,
MetaLogicalMonitorLayoutMode layout_mode,
MetaMonitorManager *monitor_manager,
GError **error)
{
GList *l;
int expected_mode_width = 0;
int expected_mode_height = 0;
if (logical_monitor_config->layout.x < 0 ||
logical_monitor_config->layout.y < 0)
{
g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
"Invalid logical monitor position (%d, %d)",
logical_monitor_config->layout.x,
logical_monitor_config->layout.y);
return FALSE;
}
if (!logical_monitor_config->monitor_configs)
{
g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
"Logical monitor is empty");
return FALSE;
}
if (meta_monitor_transform_is_rotated (logical_monitor_config->transform))
{
expected_mode_width = logical_monitor_config->layout.height;
expected_mode_height = logical_monitor_config->layout.width;
}
else
{
expected_mode_width = logical_monitor_config->layout.width;
expected_mode_height = logical_monitor_config->layout.height;
}
switch (layout_mode)
{
case META_LOGICAL_MONITOR_LAYOUT_MODE_LOGICAL:
expected_mode_width = roundf (expected_mode_width *
logical_monitor_config->scale);
expected_mode_height = roundf (expected_mode_height *
logical_monitor_config->scale);
break;
case META_LOGICAL_MONITOR_LAYOUT_MODE_PHYSICAL:
break;
}
for (l = logical_monitor_config->monitor_configs; l; l = l->next)
{
MetaMonitorConfig *monitor_config = l->data;
if (monitor_config->mode_spec->width != expected_mode_width ||
monitor_config->mode_spec->height != expected_mode_height)
{
g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
"Monitor modes in logical monitor conflict");
return FALSE;
}
}
return TRUE;
}
static gboolean
has_adjecent_neighbour (MetaMonitorsConfig *config,
MetaLogicalMonitorConfig *logical_monitor_config)
{
GList *l;
if (!config->logical_monitor_configs->next)
{
g_assert (config->logical_monitor_configs->data ==
logical_monitor_config);
return TRUE;
}
for (l = config->logical_monitor_configs; l; l = l->next)
{
MetaLogicalMonitorConfig *other_logical_monitor_config = l->data;
if (logical_monitor_config == other_logical_monitor_config)
continue;
if (meta_rectangle_is_adjecent_to (&logical_monitor_config->layout,
&other_logical_monitor_config->layout))
return TRUE;
}
return FALSE;
}
gboolean
meta_logical_monitor_configs_have_monitor (GList *logical_monitor_configs,
MetaMonitorSpec *monitor_spec)
{
GList *l;
for (l = logical_monitor_configs; l; l = l->next)
{
MetaLogicalMonitorConfig *logical_monitor_config = l->data;
GList *k;
for (k = logical_monitor_config->monitor_configs; k; k = k->next)
{
MetaMonitorConfig *monitor_config = k->data;
if (meta_monitor_spec_equals (monitor_spec,
monitor_config->monitor_spec))
return TRUE;
}
}
return FALSE;
}
static gboolean
meta_monitors_config_is_monitor_enabled (MetaMonitorsConfig *config,
MetaMonitorSpec *monitor_spec)
{
return meta_logical_monitor_configs_have_monitor (config->logical_monitor_configs,
monitor_spec);
}
gboolean
meta_verify_monitors_config (MetaMonitorsConfig *config,
MetaMonitorManager *monitor_manager,
GError **error)
{
int min_x, min_y;
gboolean has_primary;
GList *region;
GList *l;
gboolean global_scale_required;
if (!config->logical_monitor_configs)
{
g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
"Monitors config incomplete");
return FALSE;
}
global_scale_required =
!!(meta_monitor_manager_get_capabilities (monitor_manager) &
META_MONITOR_MANAGER_CAPABILITY_GLOBAL_SCALE_REQUIRED);
min_x = INT_MAX;
min_y = INT_MAX;
region = NULL;
has_primary = FALSE;
for (l = config->logical_monitor_configs; l; l = l->next)
{
MetaLogicalMonitorConfig *logical_monitor_config = l->data;
if (global_scale_required)
{
MetaLogicalMonitorConfig *prev_logical_monitor_config =
l->prev ? l->prev->data : NULL;
if (prev_logical_monitor_config &&
(prev_logical_monitor_config->scale !=
logical_monitor_config->scale))
{
g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
"Logical monitor scales must be identical");
return FALSE;
}
}
if (meta_rectangle_overlaps_with_region (region,
&logical_monitor_config->layout))
{
g_list_free (region);
g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
"Logical monitors overlap");
return FALSE;
}
if (has_primary && logical_monitor_config->is_primary)
{
g_list_free (region);
g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
"Config contains multiple primary logical monitors");
return FALSE;
}
else if (logical_monitor_config->is_primary)
{
has_primary = TRUE;
}
if (!has_adjecent_neighbour (config, logical_monitor_config))
{
g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
"Logical monitors not adjecent");
return FALSE;
}
min_x = MIN (logical_monitor_config->layout.x, min_x);
min_y = MIN (logical_monitor_config->layout.y, min_y);
region = g_list_prepend (region, &logical_monitor_config->layout);
}
g_list_free (region);
for (l = config->disabled_monitor_specs; l; l = l->next)
{
MetaMonitorSpec *monitor_spec = l->data;
if (meta_monitors_config_is_monitor_enabled (config, monitor_spec))
{
g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
"Assigned monitor explicitly disabled");
return FALSE;
}
}
if (min_x != 0 || min_y != 0)
{
g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
"Logical monitors positions are offset");
return FALSE;
}
if (!has_primary)
{
g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
"Config is missing primary logical");
return FALSE;
}
return TRUE;
}
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