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annotate src/power/SDL_power.c @ 4833:34fb492cefe3

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Shaped windows for Cocoa build and testshape runs, but the actual shaping doesn't work. Something, however, is definitely happening, because we get the backgrounds drawn in two different colors.
author egottlieb
date Thu, 05 Aug 2010 01:03:24 -0400
parents 42e1092225f9
children b530ef003506
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2010 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,
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31 int *percent);
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32
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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_BeOS(SDL_PowerState *, int *, int *);
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38 SDL_bool SDL_GetPowerInfo_NintendoDS(SDL_PowerState *, int *, int *);
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39 SDL_bool SDL_GetPowerInfo_UIKit(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 */
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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_proc_acpi,
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60 SDL_GetPowerInfo_Linux_proc_apm,
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61 #endif
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62 #ifdef SDL_POWER_WINDOWS /* handles Win32, Win64, PocketPC. */
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63 SDL_GetPowerInfo_Windows,
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64 #endif
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65 #ifdef SDL_POWER_UIKIT /* handles iPhone/iPad/etc */
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66 SDL_GetPowerInfo_UIKit,
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67 #endif
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68 #ifdef SDL_POWER_MACOSX /* handles Mac OS X, Darwin. */
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69 SDL_GetPowerInfo_MacOSX,
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70 #endif
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71 #ifdef SDL_POWER_NINTENDODS /* handles Nintendo DS. */
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72 SDL_GetPowerInfo_NintendoDS,
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73 #endif
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74 #ifdef SDL_POWER_BEOS /* handles BeOS, Zeta, with euc.jp apm driver. */
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75 SDL_GetPowerInfo_BeOS,
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76 #endif
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77 #ifdef SDL_POWER_HARDWIRED
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78 SDL_GetPowerInfo_Hardwired,
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79 #endif
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80 #endif
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81 };
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82
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83 SDL_PowerState
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84 SDL_GetPowerInfo(int *seconds, int *percent)
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85 {
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86 const int total = sizeof(implementations) / sizeof(implementations[0]);
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87 int _seconds, _percent;
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88 SDL_PowerState retval;
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89 int i;
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90
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91 /* Make these never NULL for platform-specific implementations. */
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92 if (seconds == NULL) {
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93 seconds = &_seconds;
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94 }
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95
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96 if (percent == NULL) {
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97 percent = &_percent;
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98 }
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99
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100 for (i = 0; i < total; i++) {
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101 if (implementations[i] (&retval, seconds, percent)) {
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102 return retval;
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103 }
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104 }
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105
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106 /* nothing was definitive. */
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107 *seconds = -1;
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108 *percent = -1;
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109 return SDL_POWERSTATE_UNKNOWN;
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110 }
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111
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112 /* vi: set ts=4 sw=4 expandtab: */