blob: cf10b4c70ed2d5846481852f3c0dce1a1a5ee2a3 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
|
/*
* Copyright (C) 2009-2018 Team Kodi
* This file is part of Kodi - https://kodi.tv
*
* SPDX-License-Identifier: GPL-2.0-or-later
* See LICENSES/README.md for more information.
*/
#pragma once
#include <vector>
// This class encapsulates support for monitor power-saving features (DPMS).
// An instance is connected to a Surface, provides information on which
// power-saving features are available for that screen, and it is able to
// turn power-saving on an off.
// Note that SDL turns off DPMS timeouts at the beginning of the application.
class CDPMSSupport
{
public:
// All known DPMS power-saving modes, on any platform.
enum PowerSavingMode
{
STANDBY,
SUSPEND,
OFF,
NUM_MODES,
};
CDPMSSupport();
virtual ~CDPMSSupport() = default;
// Whether power-saving is supported on this screen.
bool IsSupported() const { return !m_supportedModes.empty(); }
// Which power-saving modes are supported, in the order of preference (i.e.
// the first mode should be the best choice).
const std::vector<PowerSavingMode>& GetSupportedModes() const
{
return m_supportedModes;
}
// Whether a given mode is supported.
bool IsModeSupported(PowerSavingMode mode) const;
// Turns on the specified power-saving mode, which must be valid
// and supported. Returns false if this failed.
virtual bool EnablePowerSaving(PowerSavingMode mode) = 0;
// Turns off power-saving mode. You should only call this if the display
// is currently in a power-saving mode, to avoid visual artifacts.
virtual bool DisablePowerSaving() = 0;
protected:
std::vector<PowerSavingMode> m_supportedModes;
};
|
