Mercurial > sdl-ios-xcode

annotate src/power/windows/SDL_syspower.c @ 3452:1f1a41879fe4

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Use SDL's string and memory functions instead of stdlib
author Sam Lantinga <slouken@libsdl.org>
date Wed, 18 Nov 2009 09:28:35 +0000
parents 51750b7a966f
children f7b03b6838cb
rev   line source
3170
b7a48f533966 Initial work on power subsystem for SDL 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1 /*
b7a48f533966 Initial work on power subsystem for SDL 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
2 SDL - Simple DirectMedia Layer
b7a48f533966 Initial work on power subsystem for SDL 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
3 Copyright (C) 1997-2009 Sam Lantinga
b7a48f533966 Initial work on power subsystem for SDL 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
4
b7a48f533966 Initial work on power subsystem for SDL 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
5 This library is free software; you can redistribute it and/or
b7a48f533966 Initial work on power subsystem for SDL 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
6 modify it under the terms of the GNU Lesser General Public
b7a48f533966 Initial work on power subsystem for SDL 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
7 License as published by the Free Software Foundation; either
b7a48f533966 Initial work on power subsystem for SDL 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
8 version 2.1 of the License, or (at your option) any later version.
b7a48f533966 Initial work on power subsystem for SDL 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
9
b7a48f533966 Initial work on power subsystem for SDL 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
10 This library is distributed in the hope that it will be useful,
b7a48f533966 Initial work on power subsystem for SDL 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
b7a48f533966 Initial work on power subsystem for SDL 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
b7a48f533966 Initial work on power subsystem for SDL 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
13 Lesser General Public License for more details.
b7a48f533966 Initial work on power subsystem for SDL 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
14
b7a48f533966 Initial work on power subsystem for SDL 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
15 You should have received a copy of the GNU Lesser General Public
b7a48f533966 Initial work on power subsystem for SDL 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
16 License along with this library; if not, write to the Free Software
b7a48f533966 Initial work on power subsystem for SDL 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
b7a48f533966 Initial work on power subsystem for SDL 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
18
b7a48f533966 Initial work on power subsystem for SDL 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
19 Sam Lantinga
b7a48f533966 Initial work on power subsystem for SDL 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
20 slouken@libsdl.org
b7a48f533966 Initial work on power subsystem for SDL 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
21 */
b7a48f533966 Initial work on power subsystem for SDL 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
22 #include "SDL_config.h"
b7a48f533966 Initial work on power subsystem for SDL 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
23
b7a48f533966 Initial work on power subsystem for SDL 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
24 #ifndef SDL_POWER_DISABLED
b7a48f533966 Initial work on power subsystem for SDL 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
25 #ifdef SDL_POWER_WINDOWS
b7a48f533966 Initial work on power subsystem for SDL 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
26
b7a48f533966 Initial work on power subsystem for SDL 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
27 #define WIN32_LEAN_AND_MEAN
b7a48f533966 Initial work on power subsystem for SDL 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
28 #include <windows.h>
b7a48f533966 Initial work on power subsystem for SDL 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
29
b7a48f533966 Initial work on power subsystem for SDL 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
30 #include "SDL_power.h"
b7a48f533966 Initial work on power subsystem for SDL 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
31
b7a48f533966 Initial work on power subsystem for SDL 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
32 SDL_bool
3186
Sam Lantinga <slouken@libsdl.org>
parents: 3170
diff changeset
33 SDL_GetPowerInfo_Windows(SDL_PowerState * state, int *seconds, int *percent)
3170
b7a48f533966 Initial work on power subsystem for SDL 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
34 {
b7a48f533966 Initial work on power subsystem for SDL 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
35 SYSTEM_POWER_STATUS status;
b7a48f533966 Initial work on power subsystem for SDL 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
36 SDL_bool need_details = SDL_FALSE;
b7a48f533966 Initial work on power subsystem for SDL 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
37
b7a48f533966 Initial work on power subsystem for SDL 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
38 /* This API should exist back to Win95 and Windows CE. */
b7a48f533966 Initial work on power subsystem for SDL 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
39 if (!GetSystemPowerStatus(&status)) {
b7a48f533966 Initial work on power subsystem for SDL 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
40 /* !!! FIXME: push GetLastError() into SDL_GetError() */
b7a48f533966 Initial work on power subsystem for SDL 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
41 *state = SDL_POWERSTATE_UNKNOWN;
3186
Sam Lantinga <slouken@libsdl.org>
parents: 3170
diff changeset
42 } else if (status.BatteryFlag == 0xFF) { /* unknown state */
3170
b7a48f533966 Initial work on power subsystem for SDL 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
43 *state = SDL_POWERSTATE_UNKNOWN;
3186
Sam Lantinga <slouken@libsdl.org>
parents: 3170
diff changeset
44 } else if (status.BatteryFlag & (1 << 7)) { /* no battery */
3170
b7a48f533966 Initial work on power subsystem for SDL 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
45 *state = SDL_POWERSTATE_NO_BATTERY;
3186
Sam Lantinga <slouken@libsdl.org>
parents: 3170
diff changeset
46 } else if (status.BatteryFlag & (1 << 3)) { /* charging */
3170
b7a48f533966 Initial work on power subsystem for SDL 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
47 *state = SDL_POWERSTATE_CHARGING;
b7a48f533966 Initial work on power subsystem for SDL 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
48 need_details = SDL_TRUE;
b7a48f533966 Initial work on power subsystem for SDL 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
49 } else if (status.ACLineStatus == 1) {
3186
Sam Lantinga <slouken@libsdl.org>
parents: 3170
diff changeset
50 *state = SDL_POWERSTATE_CHARGED; /* on AC, not charging. */
3170
b7a48f533966 Initial work on power subsystem for SDL 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
51 need_details = SDL_TRUE;
b7a48f533966 Initial work on power subsystem for SDL 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
52 } else {
3186
Sam Lantinga <slouken@libsdl.org>
parents: 3170
diff changeset
53 *state = SDL_POWERSTATE_ON_BATTERY; /* not on AC. */
3170
b7a48f533966 Initial work on power subsystem for SDL 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
54 need_details = SDL_TRUE;
b7a48f533966 Initial work on power subsystem for SDL 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
55 }
b7a48f533966 Initial work on power subsystem for SDL 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
56
b7a48f533966 Initial work on power subsystem for SDL 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
57 *percent = -1;
b7a48f533966 Initial work on power subsystem for SDL 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
58 *seconds = -1;
b7a48f533966 Initial work on power subsystem for SDL 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
59 if (need_details) {
b7a48f533966 Initial work on power subsystem for SDL 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
60 const int pct = (int) status.BatteryLifePercent;
b7a48f533966 Initial work on power subsystem for SDL 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
61 const int secs = (int) status.BatteryLifeTime;
b7a48f533966 Initial work on power subsystem for SDL 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
62
3186
Sam Lantinga <slouken@libsdl.org>
parents: 3170
diff changeset
63 if (pct != 255) { /* 255 == unknown */
Sam Lantinga <slouken@libsdl.org>
parents: 3170
diff changeset
64 *percent = (pct > 100) ? 100 : pct; /* clamp between 0%, 100% */
3170
b7a48f533966 Initial work on power subsystem for SDL 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
65 }
3186
Sam Lantinga <slouken@libsdl.org>
parents: 3170
diff changeset
66 if (secs != 0xFFFFFFFF) { /* ((DWORD)-1) == unknown */
3170
b7a48f533966 Initial work on power subsystem for SDL 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
67 *seconds = secs;
b7a48f533966 Initial work on power subsystem for SDL 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
68 }
b7a48f533966 Initial work on power subsystem for SDL 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
69 }
b7a48f533966 Initial work on power subsystem for SDL 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
70
3186
Sam Lantinga <slouken@libsdl.org>
parents: 3170
diff changeset
71 return SDL_TRUE; /* always the definitive answer on Windows. */
3170
b7a48f533966 Initial work on power subsystem for SDL 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
72 }
b7a48f533966 Initial work on power subsystem for SDL 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
73
b7a48f533966 Initial work on power subsystem for SDL 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
74 #endif /* SDL_POWER_WINDOWS */
b7a48f533966 Initial work on power subsystem for SDL 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
75 #endif /* SDL_POWER_DISABLED */
b7a48f533966 Initial work on power subsystem for SDL 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
76
b7a48f533966 Initial work on power subsystem for SDL 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
77 /* vi: set ts=4 sw=4 expandtab: */