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a8d11161b6
mutter/src/backends/native/meta-monitor-manager-native.c
Marco Trevisan (Treviño) a8d11161b6 kms: Only emit resources-changed signal if we recorded a change 
Since we cache already all the KMS parameters we care about let's check at
each device update if anything has really changed and only in such case
emit a resources-changed signal.

In this way we can also filter out the DRM parameters that when changed
don't require a full monitors rebuild.

Examples are the gamma settings or the privacy screen parameters, that
emits an udev "hotplug" event when changed, but we want to register those
only when we handle the changed property.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1964>
2021-09-20 15:37:59 +00:00

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/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
/*
* Copyright (C) 2013 Red Hat Inc.
* 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.
*
* Author: Giovanni Campagna <gcampagn@redhat.com>
*/
/**
* SECTION:meta-monitor-manager-native
* @title: MetaMonitorManagerNative
* @short_description: A subclass of #MetaMonitorManager using Linux DRM
*
* #MetaMonitorManagerNative is a subclass of #MetaMonitorManager which
* implements its functionality "natively": it uses the appropriate
* functions of the Linux DRM kernel module and using a udev client.
*
* See also #MetaMonitorManagerXrandr for an implementation using XRandR.
*/
#include "backends/meta-monitor.h"
#include "config.h"
#include "backends/native/meta-monitor-manager-native.h"
#include <drm.h>
#include <errno.h>
#include <gudev/gudev.h>
#include <stdlib.h>
#include <string.h>
#include <sys/ioctl.h>
#include <sys/mman.h>
#include <unistd.h>
#include "backends/meta-backend-private.h"
#include "backends/meta-crtc.h"
#include "backends/meta-monitor-config-manager.h"
#include "backends/meta-output.h"
#include "backends/native/meta-backend-native.h"
#include "backends/native/meta-crtc-kms.h"
#include "backends/native/meta-gpu-kms.h"
#include "backends/native/meta-kms-update.h"
#include "backends/native/meta-kms.h"
#include "backends/native/meta-launcher.h"
#include "backends/native/meta-output-kms.h"
#include "backends/native/meta-renderer-native.h"
#include "backends/native/meta-virtual-monitor-native.h"
#include "clutter/clutter.h"
#include "meta/main.h"
#include "meta/meta-x11-errors.h"
enum
{
PROP_0,
PROP_NEED_OUTPUTS,
N_PROPS
};
static GParamSpec *obj_props[N_PROPS];
struct _MetaMonitorManagerNative
{
MetaMonitorManager parent_instance;
gulong kms_resources_changed_handler_id;
GHashTable *crtc_gamma_cache;
gboolean needs_outputs;
};
struct _MetaMonitorManagerNativeClass
{
MetaMonitorManagerClass parent_class;
};
#define VIRTUAL_OUTPUT_ID_BIT (((uint64_t) 1) << 63)
static void
initable_iface_init (GInitableIface *initable_iface);
G_DEFINE_TYPE_WITH_CODE (MetaMonitorManagerNative, meta_monitor_manager_native,
META_TYPE_MONITOR_MANAGER,
G_IMPLEMENT_INTERFACE (G_TYPE_INITABLE,
initable_iface_init))
static GBytes *
meta_monitor_manager_native_read_edid (MetaMonitorManager *manager,
MetaOutput *output)
{
return meta_output_native_read_edid (META_OUTPUT_NATIVE (output));
}
static void
meta_monitor_manager_native_read_current_state (MetaMonitorManager *manager)
{
MetaMonitorManagerClass *parent_class =
META_MONITOR_MANAGER_CLASS (meta_monitor_manager_native_parent_class);
MetaPowerSave power_save_mode;
power_save_mode = meta_monitor_manager_get_power_save_mode (manager);
if (power_save_mode != META_POWER_SAVE_ON)
meta_monitor_manager_power_save_mode_changed (manager,
META_POWER_SAVE_ON);
parent_class->read_current_state (manager);
}
uint64_t
meta_power_save_to_dpms_state (MetaPowerSave power_save)
{
switch (power_save)
{
case META_POWER_SAVE_ON:
return DRM_MODE_DPMS_ON;
case META_POWER_SAVE_STANDBY:
return DRM_MODE_DPMS_STANDBY;
case META_POWER_SAVE_SUSPEND:
return DRM_MODE_DPMS_SUSPEND;
case META_POWER_SAVE_OFF:
return DRM_MODE_DPMS_OFF;
case META_POWER_SAVE_UNSUPPORTED:
return DRM_MODE_DPMS_ON;
}
g_warn_if_reached ();
return DRM_MODE_DPMS_ON;
}
static void
meta_monitor_manager_native_set_power_save_mode (MetaMonitorManager *manager,
MetaPowerSave mode)
{
MetaBackend *backend = meta_monitor_manager_get_backend (manager);
MetaBackendNative *backend_native = META_BACKEND_NATIVE (backend);
MetaKms *kms = meta_backend_native_get_kms (backend_native);
GList *l;
for (l = meta_backend_get_gpus (backend); l; l = l->next)
{
MetaGpuKms *gpu_kms = l->data;
switch (mode)
{
case META_POWER_SAVE_ON:
case META_POWER_SAVE_UNSUPPORTED:
{
g_list_foreach (meta_gpu_get_crtcs (META_GPU (gpu_kms)),
(GFunc) meta_crtc_kms_invalidate_gamma,
NULL);
break;
}
case META_POWER_SAVE_STANDBY:
case META_POWER_SAVE_SUSPEND:
case META_POWER_SAVE_OFF:
{
MetaKmsDevice *kms_device = meta_gpu_kms_get_kms_device (gpu_kms);
MetaKmsUpdate *kms_update;
MetaKmsUpdateFlag flags;
g_autoptr (MetaKmsFeedback) kms_feedback = NULL;
kms_update = meta_kms_ensure_pending_update (kms, kms_device);
meta_kms_update_set_power_save (kms_update);
flags = META_KMS_UPDATE_FLAG_NONE;
kms_feedback = meta_kms_post_pending_update_sync (kms,
kms_device,
flags);
if (meta_kms_feedback_get_result (kms_feedback) !=
META_KMS_FEEDBACK_PASSED)
{
g_warning ("Failed to enter power saving mode: %s",
meta_kms_feedback_get_error (kms_feedback)->message);
}
break;
}
}
}
}
static void
meta_monitor_manager_native_ensure_initial_config (MetaMonitorManager *manager)
{
MetaMonitorsConfig *config;
config = meta_monitor_manager_ensure_configured (manager);
meta_monitor_manager_update_logical_state (manager, config);
}
static void
apply_crtc_assignments (MetaMonitorManager *manager,
MetaCrtcAssignment **crtcs,
unsigned int n_crtcs,
MetaOutputAssignment **outputs,
unsigned int n_outputs)
{
MetaBackend *backend = meta_monitor_manager_get_backend (manager);
g_autoptr (GList) to_configure_outputs = NULL;
g_autoptr (GList) to_configure_crtcs = NULL;
unsigned i;
GList *gpus;
GList *l;
gpus = meta_backend_get_gpus (backend);
for (l = gpus; l; l = l->next)
{
MetaGpu *gpu = l->data;
GList *crtcs;
GList *outputs;
outputs = g_list_copy (meta_gpu_get_outputs (gpu));
to_configure_outputs = g_list_concat (to_configure_outputs, outputs);
crtcs = g_list_copy (meta_gpu_get_crtcs (gpu));
to_configure_crtcs = g_list_concat (to_configure_crtcs, crtcs);
}
for (l = meta_monitor_manager_get_virtual_monitors (manager); l; l = l->next)
{
MetaVirtualMonitor *virtual_monitor = l->data;
MetaOutput *output = meta_virtual_monitor_get_output (virtual_monitor);
MetaCrtc *crtc = meta_virtual_monitor_get_crtc (virtual_monitor);
to_configure_outputs = g_list_append (to_configure_outputs, output);
to_configure_crtcs = g_list_append (to_configure_crtcs, crtc);
}
for (i = 0; i < n_crtcs; i++)
{
MetaCrtcAssignment *crtc_assignment = crtcs[i];
MetaCrtc *crtc = crtc_assignment->crtc;
to_configure_crtcs = g_list_remove (to_configure_crtcs, crtc);
if (crtc_assignment->mode == NULL)
{
meta_crtc_unset_config (crtc);
}
else
{
unsigned int j;
meta_crtc_set_config (crtc,
&crtc_assignment->layout,
crtc_assignment->mode,
crtc_assignment->transform);
for (j = 0; j < crtc_assignment->outputs->len; j++)
{
MetaOutput *output = g_ptr_array_index (crtc_assignment->outputs,
j);
MetaOutputAssignment *output_assignment;
to_configure_outputs = g_list_remove (to_configure_outputs,
output);
output_assignment = meta_find_output_assignment (outputs,
n_outputs,
output);
meta_output_assign_crtc (output, crtc, output_assignment);
}
}
}
g_list_foreach (to_configure_crtcs,
(GFunc) meta_crtc_unset_config,
NULL);
g_list_foreach (to_configure_outputs,
(GFunc) meta_output_unassign_crtc,
NULL);
}
static void
update_screen_size (MetaMonitorManager *manager,
MetaMonitorsConfig *config)
{
GList *l;
int screen_width = 0;
int screen_height = 0;
for (l = config->logical_monitor_configs; l; l = l->next)
{
MetaLogicalMonitorConfig *logical_monitor_config = l->data;
int right_edge;
int bottom_edge;
right_edge = (logical_monitor_config->layout.width +
logical_monitor_config->layout.x);
if (right_edge > screen_width)
screen_width = right_edge;
bottom_edge = (logical_monitor_config->layout.height +
logical_monitor_config->layout.y);
if (bottom_edge > screen_height)
screen_height = bottom_edge;
}
manager->screen_width = screen_width;
manager->screen_height = screen_height;
}
static gboolean
meta_monitor_manager_native_apply_monitors_config (MetaMonitorManager *manager,
MetaMonitorsConfig *config,
MetaMonitorsConfigMethod method,
GError **error)
{
GPtrArray *crtc_assignments;
GPtrArray *output_assignments;
if (!config)
{
if (!manager->in_init)
{
MetaBackend *backend = meta_get_backend ();
MetaRenderer *renderer = meta_backend_get_renderer (backend);
meta_renderer_native_reset_modes (META_RENDERER_NATIVE (renderer));
}
manager->screen_width = META_MONITOR_MANAGER_MIN_SCREEN_WIDTH;
manager->screen_height = META_MONITOR_MANAGER_MIN_SCREEN_HEIGHT;
meta_monitor_manager_rebuild (manager, NULL);
return TRUE;
}
if (!meta_monitor_config_manager_assign (manager, config,
&crtc_assignments,
&output_assignments,
error))
return FALSE;
if (method == META_MONITORS_CONFIG_METHOD_VERIFY)
{
g_ptr_array_free (crtc_assignments, TRUE);
g_ptr_array_free (output_assignments, TRUE);
return TRUE;
}
apply_crtc_assignments (manager,
(MetaCrtcAssignment **) crtc_assignments->pdata,
crtc_assignments->len,
(MetaOutputAssignment **) output_assignments->pdata,
output_assignments->len);
g_ptr_array_free (crtc_assignments, TRUE);
g_ptr_array_free (output_assignments, TRUE);
update_screen_size (manager, config);
meta_monitor_manager_rebuild (manager, config);
return TRUE;
}
static void
meta_monitor_manager_native_get_crtc_gamma (MetaMonitorManager *manager,
MetaCrtc *crtc,
gsize *size,
unsigned short **red,
unsigned short **green,
unsigned short **blue)
{
MetaKmsCrtc *kms_crtc;
const MetaKmsCrtcState *crtc_state;
g_return_if_fail (META_IS_CRTC_KMS (crtc));
kms_crtc = meta_crtc_kms_get_kms_crtc (META_CRTC_KMS (crtc));
crtc_state = meta_kms_crtc_get_current_state (kms_crtc);
*size = crtc_state->gamma.size;
*red = g_memdup2 (crtc_state->gamma.red, *size * sizeof **red);
*green = g_memdup2 (crtc_state->gamma.green, *size * sizeof **green);
*blue = g_memdup2 (crtc_state->gamma.blue, *size * sizeof **blue);
}
static char *
generate_gamma_ramp_string (size_t size,
unsigned short *red,
unsigned short *green,
unsigned short *blue)
{
GString *string;
int color;
string = g_string_new ("[");
for (color = 0; color < 3; color++)
{
unsigned short **color_ptr = NULL;
char color_char;
size_t i;
switch (color)
{
case 0:
color_ptr = &red;
color_char = 'r';
break;
case 1:
color_ptr = &green;
color_char = 'g';
break;
case 2:
color_ptr = &blue;
color_char = 'b';
break;
}
g_assert (color_ptr);
g_string_append_printf (string, " %c: ", color_char);
for (i = 0; i < MIN (4, size); i++)
{
int j;
if (size > 4)
{
if (i == 2)
g_string_append (string, ",...");
if (i >= 2)
j = i + (size - 4);
else
j = i;
}
else
{
j = i;
}
g_string_append_printf (string, "%s%hu",
j == 0 ? "" : ",",
(*color_ptr)[i]);
}
}
g_string_append (string, " ]");
return g_string_free (string, FALSE);
}
MetaKmsCrtcGamma *
meta_monitor_manager_native_get_cached_crtc_gamma (MetaMonitorManagerNative *manager_native,
MetaCrtcKms *crtc_kms)
{
uint64_t crtc_id;
crtc_id = meta_crtc_get_id (META_CRTC (crtc_kms));
return g_hash_table_lookup (manager_native->crtc_gamma_cache,
GUINT_TO_POINTER (crtc_id));
}
static void
meta_monitor_manager_native_set_crtc_gamma (MetaMonitorManager *manager,
MetaCrtc *crtc,
gsize size,
unsigned short *red,
unsigned short *green,
unsigned short *blue)
{
MetaMonitorManagerNative *manager_native =
META_MONITOR_MANAGER_NATIVE (manager);
MetaCrtcKms *crtc_kms;
MetaKmsCrtc *kms_crtc;
g_autofree char *gamma_ramp_string = NULL;
MetaBackend *backend = meta_monitor_manager_get_backend (manager);
ClutterStage *stage = CLUTTER_STAGE (meta_backend_get_stage (backend));
g_return_if_fail (META_IS_CRTC_KMS (crtc));
crtc_kms = META_CRTC_KMS (crtc);
kms_crtc = meta_crtc_kms_get_kms_crtc (META_CRTC_KMS (crtc));
g_hash_table_replace (manager_native->crtc_gamma_cache,
GUINT_TO_POINTER (meta_crtc_get_id (crtc)),
meta_kms_crtc_gamma_new (kms_crtc, size,
red, green, blue));
gamma_ramp_string = generate_gamma_ramp_string (size, red, green, blue);
g_debug ("Setting CRTC (%" G_GUINT64_FORMAT ") gamma to %s",
meta_crtc_get_id (crtc), gamma_ramp_string);
meta_crtc_kms_invalidate_gamma (crtc_kms);
clutter_stage_schedule_update (stage);
}
static void
handle_hotplug_event (MetaMonitorManager *manager)
{
meta_monitor_manager_reload (manager);
}
static void
on_kms_resources_changed (MetaKms *kms,
MetaKmsUpdateChanges changes,
MetaMonitorManager *manager)
{
g_assert (changes != META_KMS_UPDATE_CHANGE_NONE);
handle_hotplug_event (manager);
}
static void
meta_monitor_manager_native_connect_hotplug_handler (MetaMonitorManagerNative *manager_native)
{
MetaMonitorManager *manager = META_MONITOR_MANAGER (manager_native);
MetaBackend *backend = meta_monitor_manager_get_backend (manager);
MetaBackendNative *backend_native = META_BACKEND_NATIVE (backend);
MetaKms *kms = meta_backend_native_get_kms (backend_native);
manager_native->kms_resources_changed_handler_id =
g_signal_connect (kms, "resources-changed",
G_CALLBACK (on_kms_resources_changed), manager);
}
static void
meta_monitor_manager_native_disconnect_hotplug_handler (MetaMonitorManagerNative *manager_native)
{
MetaMonitorManager *manager = META_MONITOR_MANAGER (manager_native);
MetaBackend *backend = meta_monitor_manager_get_backend (manager);
MetaBackendNative *backend_native = META_BACKEND_NATIVE (backend);
MetaKms *kms = meta_backend_native_get_kms (backend_native);
g_clear_signal_handler (&manager_native->kms_resources_changed_handler_id, kms);
}
void
meta_monitor_manager_native_pause (MetaMonitorManagerNative *manager_native)
{
meta_monitor_manager_native_disconnect_hotplug_handler (manager_native);
}
void
meta_monitor_manager_native_resume (MetaMonitorManagerNative *manager_native)
{
MetaMonitorManager *manager = META_MONITOR_MANAGER (manager_native);
MetaBackend *backend = meta_monitor_manager_get_backend (manager);
GList *l;
meta_monitor_manager_native_connect_hotplug_handler (manager_native);
for (l = meta_backend_get_gpus (backend); l; l = l->next)
{
MetaGpu *gpu = l->data;
g_list_foreach (meta_gpu_get_crtcs (gpu),
(GFunc) meta_crtc_kms_invalidate_gamma,
NULL);
}
}
static gboolean
meta_monitor_manager_native_is_transform_handled (MetaMonitorManager *manager,
MetaCrtc *crtc,
MetaMonitorTransform transform)
{
return meta_crtc_native_is_transform_handled (META_CRTC_NATIVE (crtc),
transform);
}
static MetaMonitorScalesConstraint
get_monitor_scale_constraints_from_layout_mode (MetaLogicalMonitorLayoutMode layout_mode)
{
MetaMonitorScalesConstraint constraints =
META_MONITOR_SCALES_CONSTRAINT_NONE;
switch (layout_mode)
{
case META_LOGICAL_MONITOR_LAYOUT_MODE_LOGICAL:
break;
case META_LOGICAL_MONITOR_LAYOUT_MODE_PHYSICAL:
constraints |= META_MONITOR_SCALES_CONSTRAINT_NO_FRAC;
break;
}
return constraints;
}
static float
meta_monitor_manager_native_calculate_monitor_mode_scale (MetaMonitorManager *manager,
MetaLogicalMonitorLayoutMode layout_mode,
MetaMonitor *monitor,
MetaMonitorMode *monitor_mode)
{
MetaMonitorScalesConstraint constraints =
get_monitor_scale_constraints_from_layout_mode (layout_mode);
return meta_monitor_calculate_mode_scale (monitor, monitor_mode, constraints);
}
static float *
meta_monitor_manager_native_calculate_supported_scales (MetaMonitorManager *manager,
MetaLogicalMonitorLayoutMode layout_mode,
MetaMonitor *monitor,
MetaMonitorMode *monitor_mode,
int *n_supported_scales)
{
MetaMonitorScalesConstraint constraints =
get_monitor_scale_constraints_from_layout_mode (layout_mode);
return meta_monitor_calculate_supported_scales (monitor, monitor_mode,
constraints,
n_supported_scales);
}
static MetaMonitorManagerCapability
meta_monitor_manager_native_get_capabilities (MetaMonitorManager *manager)
{
MetaBackend *backend = meta_monitor_manager_get_backend (manager);
MetaSettings *settings = meta_backend_get_settings (backend);
MetaMonitorManagerCapability capabilities =
META_MONITOR_MANAGER_CAPABILITY_NONE;
if (meta_settings_is_experimental_feature_enabled (
settings,
META_EXPERIMENTAL_FEATURE_SCALE_MONITOR_FRAMEBUFFER))
capabilities |= META_MONITOR_MANAGER_CAPABILITY_LAYOUT_MODE;
return capabilities;
}
static gboolean
meta_monitor_manager_native_get_max_screen_size (MetaMonitorManager *manager,
int *max_width,
int *max_height)
{
return FALSE;
}
static MetaLogicalMonitorLayoutMode
meta_monitor_manager_native_get_default_layout_mode (MetaMonitorManager *manager)
{
MetaBackend *backend = meta_monitor_manager_get_backend (manager);
MetaSettings *settings = meta_backend_get_settings (backend);
if (meta_settings_is_experimental_feature_enabled (
settings,
META_EXPERIMENTAL_FEATURE_SCALE_MONITOR_FRAMEBUFFER))
return META_LOGICAL_MONITOR_LAYOUT_MODE_LOGICAL;
else
return META_LOGICAL_MONITOR_LAYOUT_MODE_PHYSICAL;
}
static MetaVirtualMonitorNative *
find_virtual_monitor (MetaMonitorManagerNative *manager_native,
uint64_t id)
{
MetaMonitorManager *manager = META_MONITOR_MANAGER (manager_native);
GList *l;
for (l = meta_monitor_manager_get_virtual_monitors (manager); l; l = l->next)
{
MetaVirtualMonitorNative *virtual_monitor_native = l->data;
if (meta_virtual_monitor_native_get_id (virtual_monitor_native) == id)
return virtual_monitor_native;
}
return NULL;
}
static uint64_t
allocate_virtual_monitor_id (MetaMonitorManagerNative *manager_native)
{
uint64_t id;
id = 0;
while (TRUE)
{
if (!find_virtual_monitor (manager_native, id))
return id;
id++;
}
}
static MetaVirtualMonitor *
meta_monitor_manager_native_create_virtual_monitor (MetaMonitorManager *manager,
const MetaVirtualMonitorInfo *info,
GError **error)
{
MetaMonitorManagerNative *manager_native =
META_MONITOR_MANAGER_NATIVE (manager);
MetaVirtualMonitorNative *virtual_monitor_native;
uint64_t id;
id = allocate_virtual_monitor_id (manager_native);
virtual_monitor_native = meta_virtual_monitor_native_new (id, info);
return META_VIRTUAL_MONITOR (virtual_monitor_native);
}
static void
meta_monitor_manager_native_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
MetaMonitorManagerNative *manager_native =
META_MONITOR_MANAGER_NATIVE (object);
switch (prop_id)
{
case PROP_NEED_OUTPUTS:
manager_native->needs_outputs = g_value_get_boolean (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
meta_monitor_manager_native_dispose (GObject *object)
{
MetaMonitorManagerNative *manager_native =
META_MONITOR_MANAGER_NATIVE (object);
g_clear_pointer (&manager_native->crtc_gamma_cache,
g_hash_table_unref);
G_OBJECT_CLASS (meta_monitor_manager_native_parent_class)->dispose (object);
}
static gboolean
meta_monitor_manager_native_initable_init (GInitable *initable,
GCancellable *cancellable,
GError **error)
{
MetaMonitorManagerNative *manager_native =
META_MONITOR_MANAGER_NATIVE (initable);
MetaMonitorManager *manager = META_MONITOR_MANAGER (manager_native);
MetaBackend *backend = meta_monitor_manager_get_backend (manager);
gboolean can_have_outputs;
GList *l;
meta_monitor_manager_native_connect_hotplug_handler (manager_native);
can_have_outputs = FALSE;
for (l = meta_backend_get_gpus (backend); l; l = l->next)
{
MetaGpuKms *gpu_kms = l->data;
if (meta_gpu_kms_can_have_outputs (gpu_kms))
{
can_have_outputs = TRUE;
break;
}
}
if (manager_native->needs_outputs && !can_have_outputs)
{
g_set_error (error, G_IO_ERROR, G_IO_ERROR_NOT_FOUND,
"No GPUs with outputs found");
return FALSE;
}
manager_native->crtc_gamma_cache =
g_hash_table_new_full (NULL, NULL,
NULL,
(GDestroyNotify) meta_kms_crtc_gamma_free);
return TRUE;
}
static void
initable_iface_init (GInitableIface *initable_iface)
{
initable_iface->init = meta_monitor_manager_native_initable_init;
}
static void
meta_monitor_manager_native_init (MetaMonitorManagerNative *manager_native)
{
manager_native->needs_outputs = TRUE;
}
static void
meta_monitor_manager_native_class_init (MetaMonitorManagerNativeClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
MetaMonitorManagerClass *manager_class = META_MONITOR_MANAGER_CLASS (klass);
object_class->set_property = meta_monitor_manager_native_set_property;
object_class->dispose = meta_monitor_manager_native_dispose;
manager_class->read_edid =
meta_monitor_manager_native_read_edid;
manager_class->read_current_state =
meta_monitor_manager_native_read_current_state;
manager_class->ensure_initial_config =
meta_monitor_manager_native_ensure_initial_config;
manager_class->apply_monitors_config =
meta_monitor_manager_native_apply_monitors_config;
manager_class->set_power_save_mode =
meta_monitor_manager_native_set_power_save_mode;
manager_class->get_crtc_gamma =
meta_monitor_manager_native_get_crtc_gamma;
manager_class->set_crtc_gamma =
meta_monitor_manager_native_set_crtc_gamma;
manager_class->is_transform_handled =
meta_monitor_manager_native_is_transform_handled;
manager_class->calculate_monitor_mode_scale =
meta_monitor_manager_native_calculate_monitor_mode_scale;
manager_class->calculate_supported_scales =
meta_monitor_manager_native_calculate_supported_scales;
manager_class->get_capabilities =
meta_monitor_manager_native_get_capabilities;
manager_class->get_max_screen_size =
meta_monitor_manager_native_get_max_screen_size;
manager_class->get_default_layout_mode =
meta_monitor_manager_native_get_default_layout_mode;
manager_class->create_virtual_monitor =
meta_monitor_manager_native_create_virtual_monitor;
obj_props[PROP_NEED_OUTPUTS] =
g_param_spec_boolean ("needs-outputs",
"needs-outputs",
"Whether any outputs are needed for operation",
TRUE,
G_PARAM_WRITABLE |
G_PARAM_CONSTRUCT_ONLY |
G_PARAM_STATIC_STRINGS);
g_object_class_install_properties (object_class, N_PROPS, obj_props);
}
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