Mercurial > sdl-ios-xcode
view src/power/SDL_power.c @ 3457:06e948183b59
Found a way to implement mask semantics in OpenGL
author | Sam Lantinga <slouken@libsdl.org> |
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date | Thu, 19 Nov 2009 05:33:41 +0000 |
parents | e8f63b28947d |
children | f7b03b6838cb |
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/* SDL - Simple DirectMedia Layer Copyright (C) 1997-2009 Sam Lantinga This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA Sam Lantinga slouken@libsdl.org */ #include "SDL_config.h" #include "SDL_power.h" /* * Returns SDL_TRUE if we have a definitive answer. * SDL_FALSE to try next implementation. */ typedef SDL_bool (*SDL_GetPowerInfo_Impl) (SDL_PowerState * state, int *seconds, int *percent); SDL_bool SDL_GetPowerInfo_Linux_proc_acpi(SDL_PowerState *, int *, int *); SDL_bool SDL_GetPowerInfo_Linux_proc_apm(SDL_PowerState *, int *, int *); SDL_bool SDL_GetPowerInfo_Windows(SDL_PowerState *, int *, int *); SDL_bool SDL_GetPowerInfo_MacOSX(SDL_PowerState *, int *, int *); SDL_bool SDL_GetPowerInfo_BeOS(SDL_PowerState *, int *, int *); SDL_bool SDL_GetPowerInfo_NintendoDS(SDL_PowerState *, int *, int *); #ifndef SDL_POWER_DISABLED #ifdef SDL_POWER_HARDWIRED /* This is for things that _never_ have a battery */ static SDL_bool SDL_GetPowerInfo_Hardwired(SDL_PowerState * state, int *seconds, int *percent) { *seconds = -1; *percent = -1; *state = SDL_POWERSTATE_NO_BATTERY; return SDL_TRUE; } #endif #endif static SDL_GetPowerInfo_Impl implementations[] = { #ifndef SDL_POWER_DISABLED #ifdef SDL_POWER_LINUX /* in order of preference. More than could work. */ SDL_GetPowerInfo_Linux_proc_acpi, SDL_GetPowerInfo_Linux_proc_apm, #endif #ifdef SDL_POWER_WINDOWS /* handles Win32, Win64, PocketPC. */ SDL_GetPowerInfo_Windows, #endif #ifdef SDL_POWER_MACOSX /* handles Mac OS X, Darwin, iPhone. */ SDL_GetPowerInfo_MacOSX, #endif #ifdef SDL_POWER_NINTENDODS /* handles Nintendo DS. */ SDL_GetPowerInfo_NintendoDS, #endif #ifdef SDL_POWER_BEOS /* handles BeOS, Zeta, with euc.jp apm driver. */ SDL_GetPowerInfo_BeOS, #endif #ifdef SDL_POWER_HARDWIRED SDL_GetPowerInfo_Hardwired, #endif #endif }; SDL_PowerState SDL_GetPowerInfo(int *seconds, int *percent) { const int total = sizeof(implementations) / sizeof(implementations[0]); int _seconds, _percent; SDL_PowerState retval; int i; /* Make these never NULL for platform-specific implementations. */ if (seconds == NULL) { seconds = &_seconds; } if (percent == NULL) { percent = &_percent; } for (i = 0; i < total; i++) { if (implementations[i] (&retval, seconds, percent)) { return retval; } } /* nothing was definitive. */ *seconds = -1; *percent = -1; return SDL_POWERSTATE_UNKNOWN; } /* vi: set ts=4 sw=4 expandtab: */