mutter/src/backends/native/meta-kms-connector-private.h
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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2.1 KiB
C

/*
* Copyright (C) 2019 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.
*/
#ifndef META_KMS_CONNECTOR_PRIVATE_H
#define META_KMS_CONNECTOR_PRIVATE_H
#include "backends/native/meta-kms-connector.h"
typedef enum _MetaKmsConnectorProp
{
META_KMS_CONNECTOR_PROP_CRTC_ID = 0,
META_KMS_CONNECTOR_PROP_DPMS,
META_KMS_CONNECTOR_PROP_UNDERSCAN,
META_KMS_CONNECTOR_PROP_UNDERSCAN_HBORDER,
META_KMS_CONNECTOR_PROP_UNDERSCAN_VBORDER,
META_KMS_CONNECTOR_N_PROPS
} MetaKmsConnectorProp;
uint32_t meta_kms_connector_get_prop_id (MetaKmsConnector *connector,
MetaKmsConnectorProp prop);
const char * meta_kms_connector_get_prop_name (MetaKmsConnector *connector,
MetaKmsConnectorProp prop);
MetaKmsUpdateChanges meta_kms_connector_update_state (MetaKmsConnector *connector,
drmModeRes *drm_resources);
void meta_kms_connector_predict_state (MetaKmsConnector *connector,
MetaKmsUpdate *update);
MetaKmsConnector * meta_kms_connector_new (MetaKmsImplDevice *impl_device,
drmModeConnector *drm_connector,
drmModeRes *drm_resources);
gboolean meta_kms_connector_is_same_as (MetaKmsConnector *connector,
drmModeConnector *drm_connector);
#endif /* META_KMS_CONNECTOR_PRIVATE_H */