mutter/src/backends/native/meta-kms.h
Jonas Ådahl 276ebbf5ee kms: Use a kernel thread by default
Also add an API to inhibit the kernel thread from being used, and make
MetaRenderDeviceEglStream inhibit the kernel thread from being used if
it's active.

The reason for this is that the MetaRenderDeviceEGlStream is used when
using EGLStreams instead of KMS for page flipping. This means the actual
page flipping happens as a side effect of using EGL/OpenGL, which can't
easily be done off thread.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2777>
2023-07-17 21:19:34 +02:00

66 lines
2.0 KiB
C

/*
* Copyright (C) 2018 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_H
#define META_KMS_H
#include <glib-object.h>
#include "backends/meta-backend-private.h"
#include "backends/native/meta-kms-types.h"
#include "backends/native/meta-thread.h"
typedef enum _MetaKmsFlags
{
META_KMS_FLAG_NONE = 0,
META_KMS_FLAG_NO_MODE_SETTING = 1 << 0,
} MetaKmsFlags;
#define META_TYPE_KMS (meta_kms_get_type ())
G_DECLARE_FINAL_TYPE (MetaKms, meta_kms, META, KMS, MetaThread)
void meta_kms_discard_pending_page_flips (MetaKms *kms);
void meta_kms_notify_modes_set (MetaKms *kms);
META_EXPORT_TEST
MetaBackend * meta_kms_get_backend (MetaKms *kms);
META_EXPORT_TEST
GList * meta_kms_get_devices (MetaKms *kms);
void meta_kms_resume (MetaKms *kms);
MetaKmsDevice * meta_kms_create_device (MetaKms *kms,
const char *path,
MetaKmsDeviceFlag flags,
GError **error);
MetaKms * meta_kms_new (MetaBackend *backend,
MetaKmsFlags flags,
GError **error);
META_EXPORT_TEST
void meta_kms_inhibit_kernel_thread (MetaKms *kms);
META_EXPORT_TEST
void meta_kms_uninhibit_kernel_thread (MetaKms *kms);
#endif /* META_KMS_H */