| /* |
| Simple DirectMedia Layer |
| Copyright (C) 1997-2021 Sam Lantinga <slouken@libsdl.org> |
| |
| This software is provided 'as-is', without any express or implied |
| warranty. In no event will the authors be held liable for any damages |
| arising from the use of this software. |
| |
| Permission is granted to anyone to use this software for any purpose, |
| including commercial applications, and to alter it and redistribute it |
| freely, subject to the following restrictions: |
| |
| 1. The origin of this software must not be misrepresented; you must not |
| claim that you wrote the original software. If you use this software |
| in a product, an acknowledgment in the product documentation would be |
| appreciated but is not required. |
| 2. Altered source versions must be plainly marked as such, and must not be |
| misrepresented as being the original software. |
| 3. This notice may not be removed or altered from any source distribution. |
| */ |
| #include "../../SDL_internal.h" |
| |
| #ifndef SDL_POWER_DISABLED |
| #if SDL_POWER_MACOSX |
| |
| #include <CoreFoundation/CoreFoundation.h> |
| #include <IOKit/ps/IOPowerSources.h> |
| #include <IOKit/ps/IOPSKeys.h> |
| |
| #include "SDL_power.h" |
| |
| /* CoreFoundation is so verbose... */ |
| #define STRMATCH(a,b) (CFStringCompare(a, b, 0) == kCFCompareEqualTo) |
| #define GETVAL(k,v) \ |
| CFDictionaryGetValueIfPresent(dict, CFSTR(k), (const void **) v) |
| |
| /* Note that AC power sources also include a laptop battery it is charging. */ |
| static void |
| checkps(CFDictionaryRef dict, SDL_bool * have_ac, SDL_bool * have_battery, |
| SDL_bool * charging, int *seconds, int *percent) |
| { |
| CFStringRef strval; /* don't CFRelease() this. */ |
| CFBooleanRef bval; |
| CFNumberRef numval; |
| SDL_bool charge = SDL_FALSE; |
| SDL_bool choose = SDL_FALSE; |
| SDL_bool is_ac = SDL_FALSE; |
| int secs = -1; |
| int maxpct = -1; |
| int pct = -1; |
| |
| if ((GETVAL(kIOPSIsPresentKey, &bval)) && (bval == kCFBooleanFalse)) { |
| return; /* nothing to see here. */ |
| } |
| |
| if (!GETVAL(kIOPSPowerSourceStateKey, &strval)) { |
| return; |
| } |
| |
| if (STRMATCH(strval, CFSTR(kIOPSACPowerValue))) { |
| is_ac = *have_ac = SDL_TRUE; |
| } else if (!STRMATCH(strval, CFSTR(kIOPSBatteryPowerValue))) { |
| return; /* not a battery? */ |
| } |
| |
| if ((GETVAL(kIOPSIsChargingKey, &bval)) && (bval == kCFBooleanTrue)) { |
| charge = SDL_TRUE; |
| } |
| |
| if (GETVAL(kIOPSMaxCapacityKey, &numval)) { |
| SInt32 val = -1; |
| CFNumberGetValue(numval, kCFNumberSInt32Type, &val); |
| if (val > 0) { |
| *have_battery = SDL_TRUE; |
| maxpct = (int) val; |
| } |
| } |
| |
| if (GETVAL(kIOPSMaxCapacityKey, &numval)) { |
| SInt32 val = -1; |
| CFNumberGetValue(numval, kCFNumberSInt32Type, &val); |
| if (val > 0) { |
| *have_battery = SDL_TRUE; |
| maxpct = (int) val; |
| } |
| } |
| |
| if (GETVAL(kIOPSTimeToEmptyKey, &numval)) { |
| SInt32 val = -1; |
| CFNumberGetValue(numval, kCFNumberSInt32Type, &val); |
| |
| /* Mac OS X reports 0 minutes until empty if you're plugged in. :( */ |
| if ((val == 0) && (is_ac)) { |
| val = -1; /* !!! FIXME: calc from timeToFull and capacity? */ |
| } |
| |
| secs = (int) val; |
| if (secs > 0) { |
| secs *= 60; /* value is in minutes, so convert to seconds. */ |
| } |
| } |
| |
| if (GETVAL(kIOPSCurrentCapacityKey, &numval)) { |
| SInt32 val = -1; |
| CFNumberGetValue(numval, kCFNumberSInt32Type, &val); |
| pct = (int) val; |
| } |
| |
| if ((pct > 0) && (maxpct > 0)) { |
| pct = (int) ((((double) pct) / ((double) maxpct)) * 100.0); |
| } |
| |
| if (pct > 100) { |
| pct = 100; |
| } |
| |
| /* |
| * We pick the battery that claims to have the most minutes left. |
| * (failing a report of minutes, we'll take the highest percent.) |
| */ |
| if ((secs < 0) && (*seconds < 0)) { |
| if ((pct < 0) && (*percent < 0)) { |
| choose = SDL_TRUE; /* at least we know there's a battery. */ |
| } |
| if (pct > *percent) { |
| choose = SDL_TRUE; |
| } |
| } else if (secs > *seconds) { |
| choose = SDL_TRUE; |
| } |
| |
| if (choose) { |
| *seconds = secs; |
| *percent = pct; |
| *charging = charge; |
| } |
| } |
| |
| #undef GETVAL |
| #undef STRMATCH |
| |
| |
| SDL_bool |
| SDL_GetPowerInfo_MacOSX(SDL_PowerState * state, int *seconds, int *percent) |
| { |
| CFTypeRef blob = IOPSCopyPowerSourcesInfo(); |
| |
| *seconds = -1; |
| *percent = -1; |
| *state = SDL_POWERSTATE_UNKNOWN; |
| |
| if (blob != NULL) { |
| CFArrayRef list = IOPSCopyPowerSourcesList(blob); |
| if (list != NULL) { |
| /* don't CFRelease() the list items, or dictionaries! */ |
| SDL_bool have_ac = SDL_FALSE; |
| SDL_bool have_battery = SDL_FALSE; |
| SDL_bool charging = SDL_FALSE; |
| const CFIndex total = CFArrayGetCount(list); |
| CFIndex i; |
| for (i = 0; i < total; i++) { |
| CFTypeRef ps = (CFTypeRef) CFArrayGetValueAtIndex(list, i); |
| CFDictionaryRef dict = |
| IOPSGetPowerSourceDescription(blob, ps); |
| if (dict != NULL) { |
| checkps(dict, &have_ac, &have_battery, &charging, |
| seconds, percent); |
| } |
| } |
| |
| if (!have_battery) { |
| *state = SDL_POWERSTATE_NO_BATTERY; |
| } else if (charging) { |
| *state = SDL_POWERSTATE_CHARGING; |
| } else if (have_ac) { |
| *state = SDL_POWERSTATE_CHARGED; |
| } else { |
| *state = SDL_POWERSTATE_ON_BATTERY; |
| } |
| |
| CFRelease(list); |
| } |
| CFRelease(blob); |
| } |
| |
| return SDL_TRUE; /* always the definitive answer on Mac OS X. */ |
| } |
| |
| #endif /* SDL_POWER_MACOSX */ |
| #endif /* SDL_POWER_DISABLED */ |
| |
| /* vi: set ts=4 sw=4 expandtab: */ |