Mercurial > sdl-ios-xcode
annotate src/power/SDL_power.c @ 3176:8c12052ddc7b
make sure that mouse.z == 0 until it is used.
author | Bob Pendleton <bob@pendleton.com> |
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date | Tue, 09 Jun 2009 03:27:48 +0000 |
parents | c8b9c6d27476 |
children | 51750b7a966f |
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1 /* |
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2 SDL - Simple DirectMedia Layer |
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3 Copyright (C) 1997-2009 Sam Lantinga |
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4 |
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5 This library is free software; you can redistribute it and/or |
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6 modify it under the terms of the GNU Lesser General Public |
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7 License as published by the Free Software Foundation; either |
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8 version 2.1 of the License, or (at your option) any later version. |
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9 |
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10 This library is distributed in the hope that it will be useful, |
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of |
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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13 Lesser General Public License for more details. |
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14 |
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15 You should have received a copy of the GNU Lesser General Public |
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16 License along with this library; if not, write to the Free Software |
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
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18 |
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19 Sam Lantinga |
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20 slouken@libsdl.org |
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21 */ |
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22 #include "SDL_config.h" |
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23 #include "SDL_power.h" |
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24 |
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25 /* |
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26 * Returns SDL_TRUE if we have a definitive answer. |
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27 * SDL_FALSE to try next implementation. |
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28 */ |
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29 typedef SDL_bool |
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30 (*SDL_GetPowerInfo_Impl)(SDL_PowerState *state, int *seconds, int *percent); |
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31 |
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32 SDL_bool SDL_GetPowerInfo_Linux_sys_power(SDL_PowerState*, int*, int*); |
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33 SDL_bool SDL_GetPowerInfo_Linux_proc_acpi(SDL_PowerState*, int*, int*); |
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34 SDL_bool SDL_GetPowerInfo_Linux_proc_apm(SDL_PowerState*, int*, int*); |
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35 SDL_bool SDL_GetPowerInfo_Windows(SDL_PowerState*, int*, int*); |
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36 SDL_bool SDL_GetPowerInfo_MacOSX(SDL_PowerState*, int*, int*); |
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37 SDL_bool SDL_GetPowerInfo_OS2(SDL_PowerState*, int*, int*); |
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38 SDL_bool SDL_GetPowerInfo_BeOS(SDL_PowerState*, int*, int*); |
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39 SDL_bool SDL_GetPowerInfo_NintendoDS(SDL_PowerState*, int*, int*); |
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40 |
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41 #ifndef SDL_POWER_DISABLED |
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42 #ifdef SDL_POWER_HARDWIRED |
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43 /* This is for things that _never_ have a battery, like the Dreamcast, etc. */ |
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44 static SDL_bool |
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45 SDL_GetPowerInfo_Hardwired(SDL_PowerState *state, int *seconds, int *percent) |
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46 { |
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47 *seconds = -1; |
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48 *percent = -1; |
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49 *state = SDL_POWERSTATE_NO_BATTERY; |
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50 return SDL_TRUE; |
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51 } |
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52 #endif |
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53 #endif |
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54 |
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55 |
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56 static SDL_GetPowerInfo_Impl implementations[] = { |
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57 #ifndef SDL_POWER_DISABLED |
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58 #ifdef SDL_POWER_LINUX /* in order of preference. More than could work. */ |
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59 SDL_GetPowerInfo_Linux_sys_power, |
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60 SDL_GetPowerInfo_Linux_proc_acpi, |
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61 SDL_GetPowerInfo_Linux_proc_apm, |
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62 #endif |
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63 #ifdef SDL_POWER_WINDOWS /* handles Win32, Win64, PocketPC. */ |
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64 SDL_GetPowerInfo_Windows, |
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65 #endif |
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66 #ifdef SDL_POWER_MACOSX /* handles Mac OS X, Darwin, iPhone. */ |
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67 SDL_GetPowerInfo_MacOSX, |
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68 #endif |
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69 #ifdef SDL_POWER_OS2 /* handles OS/2, Warp, eComStation. */ |
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70 SDL_GetPowerInfo_OS2, |
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71 #endif |
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72 #ifdef SDL_POWER_NINTENDODS /* handles Nintendo DS. */ |
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73 SDL_GetPowerInfo_NintendoDS, |
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74 #endif |
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75 #ifdef SDL_POWER_BEOS /* handles BeOS, Zeta, with euc.jp apm driver. */ |
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76 SDL_GetPowerInfo_BeOS, |
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77 #endif |
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78 #ifdef SDL_POWER_HARDWIRED |
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79 SDL_GetPowerInfo_Hardwired, |
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80 #endif |
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81 #endif |
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82 }; |
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83 |
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84 SDL_PowerState |
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85 SDL_GetPowerInfo(int *seconds, int *percent) |
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86 { |
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87 const int total = sizeof (implementations) / sizeof (implementations[0]); |
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88 int _seconds, _percent; |
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89 SDL_PowerState retval; |
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90 int i; |
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91 |
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92 /* Make these never NULL for platform-specific implementations. */ |
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93 if (seconds == NULL) { |
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94 seconds = &_seconds; |
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95 } |
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96 |
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97 if (percent == NULL) { |
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98 percent = &_percent; |
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99 } |
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100 |
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101 for (i = 0; i < total; i++) { |
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102 if (implementations[i](&retval, seconds, percent)) { |
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103 return retval; |
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104 } |
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105 } |
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106 |
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107 /* nothing was definitive. */ |
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108 *seconds = -1; |
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109 *percent = -1; |
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110 return SDL_POWERSTATE_UNKNOWN; |
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111 } |
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112 |
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113 /* vi: set ts=4 sw=4 expandtab: */ |
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114 |