Mercurial > sdl-ios-xcode

annotate src/power/uikit/SDL_syspower.m @ 5267:b530ef003506

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Happy 2011! :)
author Sam Lantinga <slouken@libsdl.org>
date Fri, 11 Feb 2011 22:37:15 -0800
parents 42e1092225f9
children
rev   line source
4444
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1 /*
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
2 SDL - Simple DirectMedia Layer
5267
b530ef003506 Happy 2011! :)
Sam Lantinga <slouken@libsdl.org>
parents: 4444
diff changeset
3 Copyright (C) 1997-2011 Sam Lantinga
4444
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
4
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
5 This library is free software; you can redistribute it and/or
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
6 modify it under the terms of the GNU Lesser General Public
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
7 License as published by the Free Software Foundation; either
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
8 version 2.1 of the License, or (at your option) any later version.
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
9
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
10 This library is distributed in the hope that it will be useful,
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
13 Lesser General Public License for more details.
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
14
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
15 You should have received a copy of the GNU Lesser General Public
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
16 License along with this library; if not, write to the Free Software
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
18
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
19 Sam Lantinga
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
20 slouken@libsdl.org
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
21 */
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
22 #include "SDL_config.h"
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
23
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
24 #ifndef SDL_POWER_DISABLED
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
25 #ifdef SDL_POWER_UIKIT
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
26
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
27 #import <UIKit/UIKit.h>
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
28
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
29 #include "SDL_power.h"
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
30 #include "SDL_timer.h"
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
31 #include "SDL_assert.h"
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
32
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
33 // turn off the battery monitor if it's been more than X ms since last check.
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
34 static const int BATTERY_MONITORING_TIMEOUT = 3000;
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
35 static Uint32 SDL_UIKitLastPowerInfoQuery = 0;
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
36
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
37 void
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
38 SDL_UIKit_UpdateBatteryMonitoring(void)
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
39 {
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
40 if (SDL_UIKitLastPowerInfoQuery) {
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
41 const Uint32 prev = SDL_UIKitLastPowerInfoQuery;
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
42 const UInt32 now = SDL_GetTicks();
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
43 const UInt32 ticks = now - prev;
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
44 // if timer wrapped (now < prev), shut down, too.
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
45 if ((now < prev) || (ticks >= BATTERY_MONITORING_TIMEOUT)) {
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
46 UIDevice *uidev = [UIDevice currentDevice];
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
47 SDL_assert([uidev isBatteryMonitoringEnabled] == YES);
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
48 [uidev setBatteryMonitoringEnabled:NO];
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
49 SDL_UIKitLastPowerInfoQuery = 0;
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
50 }
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
51 }
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
52 }
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
53
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
54 SDL_bool
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
55 SDL_GetPowerInfo_UIKit(SDL_PowerState * state, int *seconds, int *percent)
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
56 {
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
57 UIDevice *uidev = [UIDevice currentDevice];
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
58
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
59 if (!SDL_UIKitLastPowerInfoQuery) {
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
60 SDL_assert([uidev isBatteryMonitoringEnabled] == NO);
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
61 [uidev setBatteryMonitoringEnabled:YES];
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
62 }
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
63
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
64 // UIKit_GL_SwapWindow() (etc) will check this and disable the battery
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
65 // monitoring if the app hasn't queried it in the last X seconds.
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
66 // Apparently monitoring the battery burns battery life. :)
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
67 // Apple's docs say not to monitor the battery unless you need it.
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
68 SDL_UIKitLastPowerInfoQuery = SDL_GetTicks();
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
69
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
70 *seconds = -1; // no API to estimate this in UIKit.
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
71
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
72 switch ([uidev batteryState])
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
73 {
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
74 case UIDeviceBatteryStateCharging:
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
75 *state = SDL_POWERSTATE_CHARGING;
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
76 break;
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
77
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
78 case UIDeviceBatteryStateFull:
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
79 *state = SDL_POWERSTATE_CHARGED;
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
80 break;
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
81
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
82 case UIDeviceBatteryStateUnplugged:
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
83 *state = SDL_POWERSTATE_ON_BATTERY;
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
84 break;
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
85
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
86 case UIDeviceBatteryStateUnknown:
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
87 default:
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
88 *state = SDL_POWERSTATE_UNKNOWN;
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
89 break;
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
90 }
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
91
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
92 const float level = [uidev batteryLevel];
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
93 *percent = ( (level < 0.0f) ? -1 : (((int) (level + 0.5f)) * 100) );
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
94 return SDL_TRUE; /* always the definitive answer on iPhoneOS. */
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
95 }
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
96
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
97 #endif /* SDL_POWER_UIKIT */
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
98 #endif /* SDL_POWER_DISABLED */
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
99
42e1092225f9 Implemented SDL power APIs for iPhoneOS.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
100 /* vi: set ts=4 sw=4 expandtab: */