view src/power/SDL_power.c @ 4426:1bceff8f008f

Fixed bug #943 Ozkan Sezer 2010-02-06 12:31:06 PST Hi: Here are some small fixes for compiling SDL against mingw-w64. (see http://mingw-w64.sourceforge.net/ . Despite the name, it supports both win32 and win64.) src/audio/windx5/directx.h and src/video/windx5/directx.h (both SDL-1.2 and SDL-1.3.) I get compilation errors about some union not having a member named u1 and alike, because of other system headers being included before this one and them already defining DUMMYUNIONNAME and stuff. This header probably assumes that those stuff are defined in windef.h, but mingw-w64 headers define them in _mingw.h. Easily fixed by moving NONAMELESSUNION definition to the top of the file. src/thread/win32/SDL_systhread.c (both SDL-1.2 and SDL-1.3.) : The __GNUC__ case for pfnSDL_CurrentBeginThread is 32-bit centric because _beginthreadex returns uintptr_t, not unsigned long which is 32 bits in win64. Changing the return type to uintptr_t fixes it. video/SDL_blit.h (and configure.in) (SDL-1.3-only) : MinGW-w64 uses msvcrt version of _aligned_malloc and _aligned_free and they are defined in intrin.h (similar to VC). Adding proper ifdefs fixes it. (Notes about macros to check: __MINGW32__ is defined for both mingw.org and for mingw-w64 for both win32 and win64, __MINGW64__ is only defined for _WIN64, so __MINGW64__ can't be used to detect mingw-w64: including _mingw.h and then checking for __MINGW64_VERSION_MAJOR does the trick.) SDL_win32video.h (SDL-1.3-only) : Tweaked the VINWER definition and location in order to avoid multiple redefinition warnings. Hope these are useful. Thanks.
author Sam Lantinga <slouken@libsdl.org>
date Wed, 10 Mar 2010 15:02:58 +0000
parents f7b03b6838cb
children 42e1092225f9
line wrap: on
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/*
    SDL - Simple DirectMedia Layer
    Copyright (C) 1997-2010 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: */