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start.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-1-1-0/backends/platform/PalmOS/Src/launcher/start.cpp $
 * $Id: start.cpp 30664 2008-01-27 19:47:41Z jvprat $
 *
 */

#include <PalmOS.h>
#include <SonyClie.h>

#include "palmdefs.h"
#include "start.h"
#include "games.h"
#include "globals.h"
#include "modules.h"
#include "skin.h"

#include "forms.h"

/***********************************************************************
 *
 *    Global variables
 *
 ***********************************************************************/
GlobalsPreferencePtr gPrefs;
GlobalsDataPtr gVars;

Boolean bDirectMode = false;
Boolean bLaunched = false;

/***********************************************************************
 *
 *    Internal Constants
 *
 ***********************************************************************/

// Define the minimum OS version we support (3.5 for now).
#define kOurMinVersion  sysMakeROMVersion(3,5,0,sysROMStageRelease,0)
#define kPalmOS10Version      sysMakeROMVersion(1,0,0,sysROMStageRelease,0)

/***********************************************************************
 *
 *    Internal Functions
 *
 ***********************************************************************/

// Callback for ExgDBWrite to send data with Exchange Manager
static Err WriteDBData(const void* dataP, UInt32* sizeP, void* userDataP) {
      Err err;
      *sizeP = ExgSend((ExgSocketPtr)userDataP, (void*)dataP, *sizeP, &err);
      return err;
}

Err SendDatabase (UInt16 cardNo, LocalID dbID, Char *nameP, Char *descriptionP) {
      ExgSocketType exgSocket;
      Err err;

      // Create exgSocket structure
      MemSet(&exgSocket, sizeof(exgSocket), 0);
      exgSocket.description = descriptionP;
      exgSocket.name = nameP;

      // Start an exchange put operation
      err = ExgPut(&exgSocket);
      if (!err) {
            err = ExgDBWrite(WriteDBData, &exgSocket, NULL, dbID, cardNo);
            err = ExgDisconnect(&exgSocket, err);
      }

      return err;
}


/***********************************************************************
 *
 * FUNCTION:    RomVersionCompatible
 *
 * DESCRIPTION: This routine checks that a ROM version is meet your
 *              minimum requirement.
 *
 * PARAMETERS:  requiredVersion - minimum rom version required
 *                                (see sysFtrNumROMVersion in SystemMgr.h
 *                                for format)
 *              launchFlags     - flags that indicate if the application
 *                                UI is initialized.
 *
 * RETURNED:    error code or zero if rom is compatible
 *
 * REVISION HISTORY:
 *
 *
 ***********************************************************************/
static Err RomVersionCompatible(UInt32 requiredVersion, UInt16 launchFlags) {
      UInt32 romVersion;

      // See if we're on in minimum required version of the ROM or later.
      FtrGet(sysFtrCreator, sysFtrNumROMVersion, &romVersion);
      if (romVersion < requiredVersion) {
            if ((launchFlags & (sysAppLaunchFlagNewGlobals | sysAppLaunchFlagUIApp)) ==
                  (sysAppLaunchFlagNewGlobals | sysAppLaunchFlagUIApp)) {

                  FrmAlert (RomIncompatibleAlert);

                  // Palm OS 1.0 will continuously relaunch this app unless we switch to
                  // another safe one.
                  if (romVersion <= kPalmOS10Version)
                        AppLaunchWithCommand(sysFileCDefaultApp, sysAppLaunchCmdNormalLaunch, NULL);

            }
            return sysErrRomIncompatible;
      }

      return errNone;
}

///////////////////////////////////////////////////////////////////////


void SavePrefs() {
      if (gPrefs) {
            PrefSetAppPreferences(appFileCreator, appPrefID, appPrefVersionNum, gPrefs, sizeof (GlobalsPreferenceType), true);
            MemPtrFree(gPrefs);
            gPrefs = NULL;
      }
}

/***********************************************************************
 *
 * FUNCTION:    AppHandleEvent
 *
 * DESCRIPTION: This routine loads form resources and set the event
 *              handler for the form loaded.
 *
 * PARAMETERS:  event  - a pointer to an EventType structure
 *
 * RETURNED:    true if the event has handle and should not be passed
 *              to a higher level handler.
 *
 * REVISION HISTORY:
 *
 *
 ***********************************************************************/
static Boolean AppHandleEvent(EventPtr eventP) {
      UInt16 formId;
      FormPtr frmP;

      if (eventP->eType == frmLoadEvent) {
            // Load the form resource.
            formId = eventP->data.frmLoad.formID;
            frmP = FrmInitForm(formId);
            FrmSetActiveForm(frmP);

            // Set the event handler for the form.  The handler of the currently
            // active form is called by FrmHandleEvent each time is receives an
            // event.
            switch (formId) {
                  case MainForm:
                        FrmSetEventHandler(frmP, MainFormHandleEvent);
                        break;

                  case SkinsForm:
                        FrmSetEventHandler(frmP, SkinsFormHandleEvent);
                        break;

                  case GameEditForm:
                        FrmSetEventHandler(frmP, EditGameFormHandleEvent);
                        break;

                  case MiscForm:
                        FrmSetEventHandler(frmP, MiscFormHandleEvent);
                        break;

                  case CardSlotForm:
                        FrmSetEventHandler(frmP, CardSlotFormHandleEvent);
                        break;

                  case MusicForm:
                        FrmSetEventHandler(frmP, MusicFormHandleEvent);
                        break;

                  case InfoForm:
                        FrmSetEventHandler(frmP, InfoFormHandleEvent);
                        break;

                  case EngineForm:
                        FrmSetEventHandler(frmP, SelectorFormHandleEvent);
                        break;

                  default:
//                      ErrFatalDisplay("Invalid Form Load Event");
                        break;
            }
            return true;
            }

      return false;
}

/***********************************************************************
 *
 * FUNCTION:    AppEventLoop
 *
 * DESCRIPTION: This routine is the event loop for the application.
 *
 * PARAMETERS:  nothing
 *
 * RETURNED:    nothing
 *
 * REVISION HISTORY:
 *
 *
 ***********************************************************************/
static void AppEventLoop(void) {
      UInt16 error;
      EventType event;

      do {
            EvtGetEvent(&event, evtNoWait);

            if (! SysHandleEvent(&event))
                  if (! MenuHandleEvent(0, &event, &error))
                        if (! AppHandleEvent(&event))
                              FrmDispatchEvent(&event);

      } while (event.eType != appStopEvent);
}

/***********************************************************************
 *
 * FUNCTION:    ScummVMPalmMain
 *
 * DESCRIPTION: This is the main entry point for the application.
 *
 * PARAMETERS:  cmd - word value specifying the launch code.
 *              cmdPB - pointer to a structure that is associated with the launch code.
 *              launchFlags -  word value providing extra information about the launch.
 *
 * RETURNED:    Result of launch
 *
 * REVISION HISTORY:
 *
 *
 ***********************************************************************/
static void AppLaunchCmdNotify(UInt16 LaunchFlags, SysNotifyParamType * pData) {
      switch (pData->notifyType) {
            case sysNotifyVolumeMountedEvent:
                  pData->handled = true;  // don't switch

                  if (gPrefs) {     // gPrefs exists ? so we are in the palm selector
                        CardSlotFormUpdate(); // redraw card list if needed

                        if (gPrefs->card.volRefNum == vfsInvalidVolRef) {
                              VFSAnyMountParamType *notifyDetailsP = (VFSAnyMountParamType *)pData->notifyDetailsP;
                              gPrefs->card.volRefNum = notifyDetailsP->volRefNum;

                              if (FrmGetFormPtr(MainForm) == FrmGetActiveForm())
                                    if (gPrefs->card.volRefNum != vfsInvalidVolRef) {
                                          CardSlotCreateDirs();
                                          FrmUpdateForm(MainForm, frmRedrawUpdateMSImport);
                                    }
                        }
                  }
                  break;

            case sysNotifyVolumeUnmountedEvent:
                  if (gPrefs) {
                        CardSlotFormUpdate();

                        if (gPrefs->card.volRefNum == (UInt16)pData->notifyDetailsP) {
                              gPrefs->card.volRefNum = vfsInvalidVolRef;

                              if (FrmGetFormPtr(MainForm) == FrmGetActiveForm())
                                    FrmUpdateForm(MainForm, frmRedrawUpdateMS);
                        }
                  }
                  break;

            case sysNotifyDisplayResizedEvent:
                  if (gVars)
                        if (FrmGetFormPtr(MainForm) == FrmGetActiveForm())
                              SknApplySkin();
                  break;

            case sonySysNotifyMsaEnforceOpenEvent:
                  // what am i supposed to do here ???
                  break;
      }
}

static UInt32 ScummVMPalmMain(UInt16 cmd, MemPtr cmdPBP, UInt16 launchFlags) {
      Err error;

      error = RomVersionCompatible (kOurMinVersion, launchFlags);
      if (error) return (error);

      switch (cmd) {
            case sysAppLaunchCmdNotify:
                  AppLaunchCmdNotify(launchFlags, (SysNotifyParamType *) cmdPBP);
                  break;

            case sysAppLaunchCustomEngineDelete:
#ifndef _DEBUG_ENGINE
                  ModDelete();
#endif
                  break;

            case sysAppLaunchCmdNormalLaunch:
                  error = AppStart();
                  if (error)
                        goto end;

                  if (!bDirectMode) {
                        FrmGotoForm(MainForm);
                  }else {
                        GamUnselect();
                        FrmGotoForm(EngineForm);
                  }

                  AppEventLoop();
end:
                  AppStop();
                  break;

            default:
                  break;

      }
      return error;
}

/***********************************************************************
 *
 * FUNCTION:    PilotMain
 *
 * DESCRIPTION: This is the main entry point for the application.
 *
 * PARAMETERS:  cmd - word value specifying the launch code.
 *              cmdPB - pointer to a structure that is associated with the launch code.
 *              launchFlags -  word value providing extra information about the launch.
 * RETURNED:    Result of launch
 *
 * REVISION HISTORY:
 *
 *
 ***********************************************************************/

UInt32 PilotMain( UInt16 cmd, MemPtr cmdPBP, UInt16 launchFlags) {
      return ScummVMPalmMain(cmd, cmdPBP, launchFlags);
}

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