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mutter/src/backends/meta-monitor-config-manager.c
Jonas Ådahl f6db6cd203 monitor-config-manager: Handle multiple builtin panels gracefully 
While multiple built-in panels isn't actually supported in any
meaningful manner, if we would ever end up with such a situation, e.g.
due to kernel bugs[0], we shouldn't crash when trying to set an
'external only' without any external monitors.

While we could handle this with more degraded functionality (e.g. don't
support the 'switch' method of monitor configuration at all), handle it
by simply not trying to switch to external-only when there are no,
according to the kernel, external monitors available. This would e.g.
still allow betwene 'mirror-all', and 'linear' switches.

The crash itself was disguised as an arbitrary X11 BadValue error, due
to mutter trying to resize the root window to 0x0, as the monitor
configuration that was applied consisted of zero logical monitors, thus
was effectively empty.

[0] https://bugzilla.redhat.com/show_bug.cgi?id=1896904

Related: https://bugzilla.redhat.com/show_bug.cgi?id=1899260
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1607>
2020-11-27 09:11:43 +01:00

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/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
/*
* Copyright (C) 2016 Red Hat
* Copyright (c) 2018 DisplayLink (UK) Ltd.
*
* 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_assignment_free (MetaCrtcAssignment *assignment);
static void
meta_output_assignment_free (MetaOutputAssignment *assignment);
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_reserved (MetaCrtc *crtc,
GArray *reserved_crtcs)
{
unsigned int i;
for (i = 0; i < reserved_crtcs->len; i++)
{
uint64_t id;
id = g_array_index (reserved_crtcs, uint64_t, i);
if (id == meta_crtc_get_id (crtc))
return TRUE;
}
return FALSE;
}
static gboolean
is_crtc_assigned (MetaCrtc *crtc,
GPtrArray *crtc_assignments)
{
unsigned int i;
for (i = 0; i < crtc_assignments->len; i++)
{
MetaCrtcAssignment *assigned_crtc_assignment =
g_ptr_array_index (crtc_assignments, i);
if (assigned_crtc_assignment->crtc == crtc)
return TRUE;
}
return FALSE;
}
static MetaCrtc *
find_unassigned_crtc (MetaOutput *output,
GPtrArray *crtc_assignments,
GArray *reserved_crtcs)
{
MetaCrtc *crtc;
const MetaOutputInfo *output_info;
unsigned int i;
crtc = meta_output_get_assigned_crtc (output);
if (crtc && !is_crtc_assigned (crtc, crtc_assignments))
return crtc;
output_info = meta_output_get_info (output);
/* then try to assign a CRTC that wasn't used */
for (i = 0; i < output_info->n_possible_crtcs; i++)
{
crtc = output_info->possible_crtcs[i];
if (is_crtc_assigned (crtc, crtc_assignments))
continue;
if (is_crtc_reserved (crtc, reserved_crtcs))
continue;
return crtc;
}
/* finally just give a CRTC that we haven't assigned */
for (i = 0; i < output_info->n_possible_crtcs; i++)
{
crtc = output_info->possible_crtcs[i];
if (is_crtc_assigned (crtc, crtc_assignments))
continue;
return crtc;
}
return NULL;
}
typedef struct
{
MetaMonitorManager *monitor_manager;
MetaMonitorsConfig *config;
MetaLogicalMonitorConfig *logical_monitor_config;
MetaMonitorConfig *monitor_config;
GPtrArray *crtc_assignments;
GPtrArray *output_assignments;
GArray *reserved_crtcs;
} 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;
MetaMonitorTransform crtc_hw_transform;
int crtc_x, crtc_y;
float x_offset, y_offset;
float scale = 0.0;
float width, height;
MetaCrtcMode *crtc_mode;
const MetaCrtcModeInfo *crtc_mode_info;
graphene_rect_t crtc_layout;
MetaCrtcAssignment *crtc_assignment;
MetaOutputAssignment *output_assignment;
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_assignments,
data->reserved_crtcs);
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_hw_transform = crtc_transform;
else
crtc_hw_transform = META_MONITOR_TRANSFORM_NORMAL;
meta_monitor_calculate_crtc_pos (monitor, mode, output, crtc_transform,
&crtc_x, &crtc_y);
x_offset = data->logical_monitor_config->layout.x;
y_offset = data->logical_monitor_config->layout.y;
switch (data->config->layout_mode)
{
case META_LOGICAL_MONITOR_LAYOUT_MODE_LOGICAL:
scale = data->logical_monitor_config->scale;
break;
case META_LOGICAL_MONITOR_LAYOUT_MODE_PHYSICAL:
scale = 1.0;
break;
}
crtc_mode = monitor_crtc_mode->crtc_mode;
crtc_mode_info = meta_crtc_mode_get_info (monitor_crtc_mode->crtc_mode);
if (meta_monitor_transform_is_rotated (crtc_transform))
{
width = crtc_mode_info->height / scale;
height = crtc_mode_info->width / scale;
}
else
{
width = crtc_mode_info->width / scale;
height = crtc_mode_info->height / scale;
}
crtc_layout = GRAPHENE_RECT_INIT (x_offset + (crtc_x / scale),
y_offset + (crtc_y / scale),
width,
height);
crtc_assignment = g_slice_new0 (MetaCrtcAssignment);
*crtc_assignment = (MetaCrtcAssignment) {
.crtc = crtc,
.mode = crtc_mode,
.layout = crtc_layout,
.transform = crtc_hw_transform,
.outputs = g_ptr_array_new ()
};
g_ptr_array_add (crtc_assignment->outputs, output);
/*
* 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_assignment = g_slice_new0 (MetaOutputAssignment);
*output_assignment = (MetaOutputAssignment) {
.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_assignments, crtc_assignment);
g_ptr_array_add (data->output_assignments, output_assignment);
return TRUE;
}
static gboolean
assign_monitor_crtcs (MetaMonitorManager *manager,
MetaMonitorsConfig *config,
MetaLogicalMonitorConfig *logical_monitor_config,
MetaMonitorConfig *monitor_config,
GPtrArray *crtc_assignments,
GPtrArray *output_assignments,
GArray *reserved_crtcs,
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,
.config = config,
.logical_monitor_config = logical_monitor_config,
.monitor_config = monitor_config,
.crtc_assignments = crtc_assignments,
.output_assignments = output_assignments,
.reserved_crtcs = reserved_crtcs
};
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,
MetaMonitorsConfig *config,
MetaLogicalMonitorConfig *logical_monitor_config,
GPtrArray *crtc_assignments,
GPtrArray *output_assignments,
GArray *reserved_crtcs,
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,
config,
logical_monitor_config,
monitor_config,
crtc_assignments, output_assignments,
reserved_crtcs, error))
return FALSE;
}
return TRUE;
}
gboolean
meta_monitor_config_manager_assign (MetaMonitorManager *manager,
MetaMonitorsConfig *config,
GPtrArray **out_crtc_assignments,
GPtrArray **out_output_assignments,
GError **error)
{
GPtrArray *crtc_assignments;
GPtrArray *output_assignments;
GArray *reserved_crtcs;
GList *l;
crtc_assignments =
g_ptr_array_new_with_free_func ((GDestroyNotify) meta_crtc_assignment_free);
output_assignments =
g_ptr_array_new_with_free_func ((GDestroyNotify) meta_output_assignment_free);
reserved_crtcs = g_array_new (FALSE, FALSE, sizeof (uint64_t));
for (l = config->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_config->monitor_spec;
MetaMonitor *monitor;
GList *o;
monitor = meta_monitor_manager_get_monitor_from_spec (manager, monitor_spec);
for (o = meta_monitor_get_outputs (monitor); o; o = o->next)
{
MetaOutput *output = o->data;
MetaCrtc *crtc;
crtc = meta_output_get_assigned_crtc (output);
if (crtc)
{
uint64_t crtc_id = meta_crtc_get_id (crtc);
g_array_append_val (reserved_crtcs, crtc_id);
}
}
}
}
for (l = config->logical_monitor_configs; l; l = l->next)
{
MetaLogicalMonitorConfig *logical_monitor_config = l->data;
if (!assign_logical_monitor_crtcs (manager,
config, logical_monitor_config,
crtc_assignments, output_assignments,
reserved_crtcs, error))
{
g_ptr_array_free (crtc_assignments, TRUE);
g_ptr_array_free (output_assignments, TRUE);
g_array_free (reserved_crtcs, TRUE);
return FALSE;
}
}
g_array_free (reserved_crtcs, TRUE);
*out_crtc_assignments = crtc_assignments;
*out_output_assignments = output_assignments;
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;
MetaMonitorSpec *laptop_monitor_spec;
GList *l;
GList *monitor_specs;
laptop_monitor_spec = NULL;
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))
{
laptop_monitor_spec = meta_monitor_get_spec (monitor);
if (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 && laptop_monitor_spec)
{
monitor_specs =
g_list_prepend (NULL, meta_monitor_spec_clone (laptop_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 MetaMonitorTransform
get_monitor_transform (MetaMonitorManager *monitor_manager,
MetaMonitor *monitor)
{
MetaOrientationManager *orientation_manager;
MetaBackend *backend;
if (!meta_monitor_is_laptop_panel (monitor))
return META_MONITOR_TRANSFORM_NORMAL;
backend = meta_monitor_manager_get_backend (monitor_manager);
orientation_manager = meta_backend_get_orientation_manager (backend);
switch (meta_orientation_manager_get_orientation (orientation_manager))
{
case META_ORIENTATION_BOTTOM_UP:
return META_MONITOR_TRANSFORM_180;
case META_ORIENTATION_LEFT_UP:
return META_MONITOR_TRANSFORM_90;
case META_ORIENTATION_RIGHT_UP:
return META_MONITOR_TRANSFORM_270;
case META_ORIENTATION_UNDEFINED:
case META_ORIENTATION_NORMAL:
default:
return META_MONITOR_TRANSFORM_NORMAL;
}
}
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;
MetaMonitorTransform transform;
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 = (int) roundf (width / scale);
height = (int) roundf (height / scale);
break;
case META_LOGICAL_MONITOR_LAYOUT_MODE_PHYSICAL:
break;
}
monitor_config = create_monitor_config (monitor, mode);
transform = get_monitor_transform (monitor_manager, monitor);
if (meta_monitor_transform_is_rotated (transform))
{
int temp = width;
width = height;
height = temp;
}
logical_monitor_config = g_new0 (MetaLogicalMonitorConfig, 1);
*logical_monitor_config = (MetaLogicalMonitorConfig) {
.layout = (MetaRectangle) {
.x = x,
.y = y,
.width = width,
.height = height
},
.transform = transform,
.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;
MetaMonitorsConfig *monitors_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);
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;
}
monitors_config = meta_monitors_config_new (monitor_manager,
logical_monitor_configs,
layout_mode,
META_MONITORS_CONFIG_FLAG_NONE);
if (monitors_config)
meta_monitors_config_set_switch_config (monitors_config, META_MONITOR_SWITCH_CONFIG_ALL_LINEAR);
return monitors_config;
}
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 GList *
clone_monitor_config_list (GList *monitor_configs_in)
{
MetaMonitorConfig *monitor_config_in;
MetaMonitorConfig *monitor_config_out;
GList *monitor_configs_out = NULL;
GList *l;
for (l = monitor_configs_in; l; l = l->next)
{
monitor_config_in = l->data;
monitor_config_out = g_new0 (MetaMonitorConfig, 1);
*monitor_config_out = (MetaMonitorConfig) {
.monitor_spec = meta_monitor_spec_clone (monitor_config_in->monitor_spec),
.mode_spec = g_memdup (monitor_config_in->mode_spec,
sizeof (MetaMonitorModeSpec)),
.enable_underscanning = monitor_config_in->enable_underscanning
};
monitor_configs_out =
g_list_append (monitor_configs_out, monitor_config_out);
}
return monitor_configs_out;
}
static GList *
clone_logical_monitor_config_list (GList *logical_monitor_configs_in)
{
MetaLogicalMonitorConfig *logical_monitor_config_in;
MetaLogicalMonitorConfig *logical_monitor_config_out;
GList *logical_monitor_configs_out = NULL;
GList *l;
for (l = logical_monitor_configs_in; l; l = l->next)
{
logical_monitor_config_in = l->data;
logical_monitor_config_out =
g_memdup (logical_monitor_config_in, sizeof (MetaLogicalMonitorConfig));
logical_monitor_config_out->monitor_configs =
clone_monitor_config_list (logical_monitor_config_in->monitor_configs);
logical_monitor_configs_out =
g_list_append (logical_monitor_configs_out, logical_monitor_config_out);
}
return logical_monitor_configs_out;
}
static MetaLogicalMonitorConfig *
find_logical_config_for_builtin_display_rotation (MetaMonitorConfigManager *config_manager,
GList *logical_monitor_configs)
{
MetaLogicalMonitorConfig *logical_monitor_config;
MetaMonitorConfig *monitor_config;
MetaMonitor *panel;
GList *l;
panel = meta_monitor_manager_get_laptop_panel (config_manager->monitor_manager);
if (panel && meta_monitor_is_active (panel))
{
for (l = logical_monitor_configs; l; l = l->next)
{
logical_monitor_config = l->data;
/*
* We only want to return the config for the panel if it is
* configured on its own, so we skip configs which contain clones.
*/
if (g_list_length (logical_monitor_config->monitor_configs) != 1)
continue;
monitor_config = logical_monitor_config->monitor_configs->data;
if (meta_monitor_spec_equals (meta_monitor_get_spec (panel),
monitor_config->monitor_spec))
return logical_monitor_config;
}
}
return NULL;
}
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, *current_configs;
MetaLogicalMonitorLayoutMode layout_mode;
if (!config_manager->current_config)
return NULL;
current_configs = config_manager->current_config->logical_monitor_configs;
current_logical_monitor_config =
find_logical_config_for_builtin_display_rotation (config_manager,
current_configs);
if (!current_logical_monitor_config)
return NULL;
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;
logical_monitor_configs =
clone_logical_monitor_config_list (config_manager->current_config->logical_monitor_configs);
logical_monitor_config =
find_logical_config_for_builtin_display_rotation (config_manager, logical_monitor_configs);
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;
}
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;
MetaMonitorsConfig *monitors_config;
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);
monitors_config = meta_monitors_config_new (monitor_manager,
logical_monitor_configs,
layout_mode,
META_MONITORS_CONFIG_FLAG_NONE);
if (monitors_config)
meta_monitors_config_set_switch_config (monitors_config, META_MONITOR_SWITCH_CONFIG_ALL_MIRROR);
return monitors_config;
}
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;
MetaMonitorsConfig *monitors_config;
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;
}
if (!logical_monitor_configs)
return NULL;
monitors_config = meta_monitors_config_new (monitor_manager,
logical_monitor_configs,
layout_mode,
META_MONITORS_CONFIG_FLAG_NONE);
if (monitors_config)
meta_monitors_config_set_switch_config (monitors_config, META_MONITOR_SWITCH_CONFIG_EXTERNAL);
return monitors_config;
}
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;
MetaMonitorsConfig *monitors_config;
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);
monitors_config = meta_monitors_config_new (monitor_manager,
logical_monitor_configs,
layout_mode,
META_MONITORS_CONFIG_FLAG_NONE);
if (monitors_config)
meta_monitors_config_set_switch_config (monitors_config, META_MONITOR_SWITCH_CONFIG_BUILTIN);
return monitors_config;
}
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;
}
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_assignment_free (MetaCrtcAssignment *assignment)
{
g_ptr_array_free (assignment->outputs, TRUE);
g_slice_free (MetaCrtcAssignment, assignment);
}
static void
meta_output_assignment_free (MetaOutputAssignment *assignment)
{
g_slice_free (MetaOutputAssignment, assignment);
}
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_adjacent_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_adjacent_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_adjacent_neighbour (config, logical_monitor_config))
{
g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
"Logical monitors not adjacent");
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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