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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#include "CEDevice.h"
#include "backends/platform/sdl/sdl-sys.h"
#include "backends/platform/wince/wince-sdl.h"
static void (WINAPI *_SHIdleTimerReset)(void) = NULL;
static HANDLE(WINAPI *_SetPowerRequirement)(PVOID, int, ULONG, PVOID, ULONG) = NULL;
static DWORD (WINAPI *_ReleasePowerRequirement)(HANDLE) = NULL;
static HANDLE _hPowerManagement = NULL;
static DWORD _lastTime = 0;
static DWORD REG_bat = 0, REG_ac = 0, REG_disp = 0, bat_timeout = 0;
static bool REG_tampered = false;
#ifdef __GNUC__
extern "C" void WINAPI SystemIdleTimerReset(void);
#define SPI_SETBATTERYIDLETIMEOUT 251
#define SPI_GETBATTERYIDLETIMEOUT 252
#endif
#define TIMER_TRIGGER 9000
DWORD CEDevice::reg_access(const TCHAR *key, const TCHAR *val, DWORD data) {
HKEY regkey;
DWORD tmpval, cbdata;
if (RegOpenKeyEx(HKEY_CURRENT_USER, key, 0, 0, ®key) != ERROR_SUCCESS)
return data;
cbdata = sizeof(DWORD);
if (RegQueryValueEx(regkey, val, NULL, NULL, (LPBYTE) &tmpval, &cbdata) != ERROR_SUCCESS) {
RegCloseKey(regkey);
return data;
}
cbdata = sizeof(DWORD);
if (RegSetValueEx(regkey, val, 0, REG_DWORD, (LPBYTE) &data, cbdata) != ERROR_SUCCESS) {
RegCloseKey(regkey);
return data;
}
RegCloseKey(regkey);
return tmpval;
}
void CEDevice::backlight_xchg() {
HANDLE h;
REG_bat = reg_access(TEXT("ControlPanel\\BackLight"), (const TCHAR *)TEXT("BatteryTimeout"), REG_bat);
REG_ac = reg_access(TEXT("ControlPanel\\BackLight"), TEXT("ACTimeout"), REG_ac);
REG_disp = reg_access(TEXT("ControlPanel\\Power"), TEXT("Display"), REG_disp);
h = CreateEvent(NULL, FALSE, FALSE, TEXT("BackLightChangeEvent"));
if (h) {
SetEvent(h);
CloseHandle(h);
}
}
void CEDevice::init() {
// 2003+ power management code borrowed from MoDaCo & Betaplayer. Thanks !
HINSTANCE dll = LoadLibrary(TEXT("aygshell.dll"));
if (dll) {
_SHIdleTimerReset = (void (*)())GetProcAddress(dll, MAKEINTRESOURCE(2006));
}
dll = LoadLibrary(TEXT("coredll.dll"));
if (dll) {
_SetPowerRequirement = (HANDLE (*)(PVOID, int, ULONG, PVOID, ULONG))GetProcAddress(dll, TEXT("SetPowerRequirement"));
_ReleasePowerRequirement = (DWORD (*)(HANDLE))GetProcAddress(dll, TEXT("ReleasePowerRequirement"));
}
if (_SetPowerRequirement)
_hPowerManagement = _SetPowerRequirement((PVOID) TEXT("BKL1:"), 0, 1, (PVOID) NULL, 0);
_lastTime = GetTickCount();
// older devices
REG_bat = REG_ac = REG_disp = 2 * 60 * 60 * 1000; // 2hrs should do it
backlight_xchg();
REG_tampered = true;
SystemParametersInfo(SPI_GETBATTERYIDLETIMEOUT, 0, (void *) &bat_timeout, 0);
SystemParametersInfo(SPI_SETBATTERYIDLETIMEOUT, 60 * 60 * 2, NULL, SPIF_SENDCHANGE);
}
void CEDevice::end() {
if (_ReleasePowerRequirement && _hPowerManagement)
_ReleasePowerRequirement(_hPowerManagement);
if (REG_tampered)
backlight_xchg();
SystemParametersInfo(SPI_SETBATTERYIDLETIMEOUT, bat_timeout, NULL, SPIF_SENDCHANGE);
}
void CEDevice::wakeUp() {
DWORD currentTime = GetTickCount();
if (currentTime > _lastTime + TIMER_TRIGGER) {
_lastTime = currentTime;
SystemIdleTimerReset();
if (_SHIdleTimerReset)
_SHIdleTimerReset();
}
}
bool CEDevice::hasSquareQVGAResolution() {
return (OSystem_WINCE3::getScreenWidth() == 240 && OSystem_WINCE3::getScreenHeight() == 240);
}
bool CEDevice::hasWideResolution() {
return (OSystem_WINCE3::getScreenWidth() >= 640 || OSystem_WINCE3::getScreenHeight() >= 640);
}
bool CEDevice::hasPocketPCResolution() {
if (OSystem_WINCE3::isOzone() && hasWideResolution())
return true;
return (OSystem_WINCE3::getScreenWidth() <= 320 && OSystem_WINCE3::getScreenWidth() >= 240);
}
bool CEDevice::hasDesktopResolution() {
if (OSystem_WINCE3::isOzone() && hasWideResolution())
return true;
return (OSystem_WINCE3::getScreenWidth() > 320);
}
bool CEDevice::hasSmartphoneResolution() {
return (OSystem_WINCE3::getScreenWidth() < 240);
}
bool CEDevice::isSmartphone() {
TCHAR platformType[100];
BOOL result = SystemParametersInfo(SPI_GETPLATFORMTYPE, sizeof(platformType), platformType, 0);
if (!result && GetLastError() == ERROR_ACCESS_DENIED)
return true;
return (_wcsnicmp(platformType, TEXT("SmartPhone"), 10) == 0);
}
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