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be_os5ex.cpp

/* 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.
 *
 * $URL: https://scummvm.svn.sourceforge.net/svnroot/scummvm/scummvm/tags/release-1-0-0rc1/backends/platform/PalmOS/Src/be_os5ex.cpp $
 * $Id: be_os5ex.cpp 30664 2008-01-27 19:47:41Z jvprat $
 *
 */

// for DAL.h
#define ALLOW_ACCESS_TO_INTERNALS_OF_BITMAPS

#include "be_os5ex.h"
#include "palmdefs.h"

#include <System/WIP.h>
#include <System/DAL.h>

static TimerExType _timerEx;

OSystem_PalmOS5Ex::OSystem_PalmOS5Ex() : OSystem_PalmOS5() {
      _timerEx.timerID = 0;
      _timerEx.timer = &_timer;
      _timerEx.ticks = SysTicksPerSecond();
}

static SYSTEM_CALLBACK void timer_handler(void *userDataP) {
      CALLBACK_PROLOGUE
      TimerExPtr _timerEx = (TimerExPtr)userDataP;
      TimerPtr _timer = _timerEx->timer;
      _timer->duration = _timer->callback(_timer->duration);
      KALTimerSet(_timerEx->timerID, (_timer->duration * _timerEx->ticks / 1000));
      CALLBACK_EPILOGUE
}

void OSystem_PalmOS5Ex::setTimerCallback(TimerProc callback, int timer) {
      if (_timer.active && _timerEx.timerID)
            KALTimerDelete(_timerEx.timerID);

      if (callback != NULL) {
            Err e;
            CALLBACK_INIT(_timerEx);
            _timer.duration = timer;
            _timer.callback = callback;

            // create the timer
            e = KALTimerCreate(&_timerEx.timerID, appFileCreator, &::timer_handler, &_timerEx);
            if (!e) {
                  e = KALTimerSet(_timerEx.timerID, (timer * _timerEx.ticks / 1000));
                  if (e) KALTimerDelete(_timerEx.timerID);
            }
            _timer.active = (!e);

      } else {
            _timer.active = false;
      }

      if (!_timer.active)
            _timerEx.timerID = 0;
}

OSystem::MutexRef OSystem_PalmOS5Ex::createMutex() {
      UInt32 mutexID;
      Err e = KALMutexCreate(&mutexID, appFileCreator);
      return (MutexRef)(e ? NULL : mutexID);

}

void OSystem_PalmOS5Ex::lockMutex(MutexRef mutex) {
      if (mutex)
            KALMutexReserve((UInt32)mutex);
}

void OSystem_PalmOS5Ex::unlockMutex(MutexRef mutex) {
      if (mutex)
            KALMutexRelease((UInt32)mutex, 0);
}

void OSystem_PalmOS5Ex::deleteMutex(MutexRef mutex) {
      if (mutex)
            KALMutexDelete((UInt32)mutex);
}

void OSystem_PalmOS5Ex::int_quit() {
      if (_timerEx.timerID)
            KALTimerDelete(_timerEx.timerID);
}

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