Atlas - SDL_power.c
Home / ext / SDL2 / src / power
Lines: 1 | Size: 3492 bytes
[Download] [Show on GitHub] [Search similar files] [Raw] [Raw (proxy)] 
[FILE BEGIN]
1/*
2  Simple DirectMedia Layer
3  Copyright (C) 1997-2018 Sam Lantinga <[email protected]>
4
5  This software is provided 'as-is', without any express or implied
6  warranty.  In no event will the authors be held liable for any damages
7  arising from the use of this software.
8
9  Permission is granted to anyone to use this software for any purpose,
10  including commercial applications, and to alter it and redistribute it
11  freely, subject to the following restrictions:
12
13  1. The origin of this software must not be misrepresented; you must not
14     claim that you wrote the original software. If you use this software
15     in a product, an acknowledgment in the product documentation would be
16     appreciated but is not required.
17  2. Altered source versions must be plainly marked as such, and must not be
18     misrepresented as being the original software.
19  3. This notice may not be removed or altered from any source distribution.
20*/
21#include "../SDL_internal.h"
22#include "SDL_power.h"
23#include "SDL_syspower.h"
24
25/*
26 * Returns SDL_TRUE if we have a definitive answer.
27 * SDL_FALSE to try next implementation.
28 */
29typedef SDL_bool
30    (*SDL_GetPowerInfo_Impl) (SDL_PowerState * state, int *seconds,
31                              int *percent);
32
33#ifndef SDL_POWER_DISABLED
34#ifdef SDL_POWER_HARDWIRED
35/* This is for things that _never_ have a battery */
36static SDL_bool
37SDL_GetPowerInfo_Hardwired(SDL_PowerState * state, int *seconds, int *percent)
38{
39    *seconds = -1;
40    *percent = -1;
41    *state = SDL_POWERSTATE_NO_BATTERY;
42    return SDL_TRUE;
43}
44#endif
45#endif
46
47
48static SDL_GetPowerInfo_Impl implementations[] = {
49#ifndef SDL_POWER_DISABLED
50#ifdef SDL_POWER_LINUX          /* in order of preference. More than could work. */
51    SDL_GetPowerInfo_Linux_org_freedesktop_upower,
52    SDL_GetPowerInfo_Linux_sys_class_power_supply,
53    SDL_GetPowerInfo_Linux_proc_acpi,
54    SDL_GetPowerInfo_Linux_proc_apm,
55#endif
56#ifdef SDL_POWER_WINDOWS        /* handles Win32, Win64, PocketPC. */
57    SDL_GetPowerInfo_Windows,
58#endif
59#ifdef SDL_POWER_UIKIT          /* handles iPhone/iPad/etc */
60    SDL_GetPowerInfo_UIKit,
61#endif
62#ifdef SDL_POWER_MACOSX         /* handles Mac OS X, Darwin. */
63    SDL_GetPowerInfo_MacOSX,
64#endif
65#ifdef SDL_POWER_HAIKU          /* with BeOS euc.jp apm driver. Does this work on Haiku? */
66    SDL_GetPowerInfo_Haiku,
67#endif
68#ifdef SDL_POWER_ANDROID        /* handles Android. */
69    SDL_GetPowerInfo_Android,
70#endif
71#ifdef SDL_POWER_PSP        /* handles PSP. */
72    SDL_GetPowerInfo_PSP,
73#endif
74#ifdef SDL_POWER_WINRT          /* handles WinRT */
75    SDL_GetPowerInfo_WinRT,
76#endif
77#ifdef SDL_POWER_EMSCRIPTEN     /* handles Emscripten */
78    SDL_GetPowerInfo_Emscripten,
79#endif
80
81#ifdef SDL_POWER_HARDWIRED
82    SDL_GetPowerInfo_Hardwired,
83#endif
84#endif
85};
86
87SDL_PowerState
88SDL_GetPowerInfo(int *seconds, int *percent)
89{
90    const int total = sizeof(implementations) / sizeof(implementations[0]);
91    int _seconds, _percent;
92    SDL_PowerState retval = SDL_POWERSTATE_UNKNOWN;
93    int i;
94
95    /* Make these never NULL for platform-specific implementations. */
96    if (seconds == NULL) {
97        seconds = &_seconds;
98    }
99
100    if (percent == NULL) {
101        percent = &_percent;
102    }
103
104    for (i = 0; i < total; i++) {
105        if (implementations[i](&retval, seconds, percent)) {
106            return retval;
107        }
108    }
109
110    /* nothing was definitive. */
111    *seconds = -1;
112    *percent = -1;
113    return SDL_POWERSTATE_UNKNOWN;
114}
115
116/* vi: set ts=4 sw=4 expandtab: */
117
[FILE END]
(C) 2025 0x4248
(C) 2025 4248 Media and 4248 Systems, All part of 0x4248
See LICENCE files for more information. Not all files are by 0x4248 always check Licencing.