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init.cpp

/* ScummVM - Scumm Interpreter
 * Copyright (C) 2004 Ivan Dubrov
 * Copyright (C) 2004-2006 The ScummVM project
 *
 * 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://svn.sourceforge.net/svnroot/scummvm/scummvm/tags/release-0-9-1/engines/gob/init.cpp $
 * $Id: init.cpp 23079 2006-06-13 08:10:54Z drmccoy $
 *
 */

#include "common/stdafx.h"
#include "common/endian.h"

#include "gob/gob.h"
#include "gob/dataio.h"
#include "gob/global.h"
#include "gob/init.h"
#include "gob/video.h"
#include "gob/sound.h"
#include "gob/timer.h"
#include "gob/sound.h"
#include "gob/game.h"
#include "gob/draw.h"
#include "gob/util.h"
#include "gob/cdrom.h"

namespace Gob {

void game_start(void);

const char *Init::_fontNames[] = { "jeulet1.let", "jeulet2.let", "jeucar1.let", "jeumath.let" };

Init::Init(GobEngine *vm) : _vm(vm) {
      _palDesc = 0;
}

void Init::findBestCfg(void) {
      _vm->_global->_videoMode = VIDMODE_VGA;
      _vm->_global->_useMouse = _vm->_global->_mousePresent;
      if (_vm->_global->_presentSound & BLASTER_FLAG)
            _vm->_global->_soundFlags = BLASTER_FLAG | SPEAKER_FLAG | MIDI_FLAG;
      else if (_vm->_global->_presentSound & PROAUDIO_FLAG)
            _vm->_global->_soundFlags = PROAUDIO_FLAG | SPEAKER_FLAG | MIDI_FLAG;
      else if (_vm->_global->_presentSound & ADLIB_FLAG)
            _vm->_global->_soundFlags = ADLIB_FLAG | SPEAKER_FLAG | MIDI_FLAG;
      else if (_vm->_global->_presentSound & INTERSOUND_FLAG)
            _vm->_global->_soundFlags = INTERSOUND_FLAG | SPEAKER_FLAG;
      else if (_vm->_global->_presentSound & SPEAKER_FLAG)
            _vm->_global->_soundFlags = SPEAKER_FLAG;
      else
            _vm->_global->_soundFlags = 0;
}

void Init::cleanup(void) {
      if (_vm->_global->_debugFlag == 0)
            _vm->_gtimer->disableTimer();

      _vm->_video->freeDriver();
      _vm->_video->freeSurfDesc(_vm->_global->_pPrimarySurfDesc);
      _vm->_global->_pPrimarySurfDesc = 0;

      if (_vm->_snd->_cleanupFunc != 0 && _vm->_snd->_playingSound != 0) {
            (*_vm->_snd->_cleanupFunc) (0);
            _vm->_snd->_cleanupFunc = 0;
      }
      _vm->_snd->speakerOff();

      _vm->_dataio->closeDataFile();

      if (_vm->_global->_sprAllocated != 0)
            warning("cleanup: Allocated sprites left: %d", _vm->_global->_sprAllocated);

      _vm->_snd->stopSound(0);
      _vm->_util->keyboard_release();
}

void Init::initGame(char *totName) {
      int16 handle2;
      int16 i;
      int16 handle;
      char *infBuf;
      char *infPtr;
      char *infEnd;
      int16 j;
      char buffer[20];
      int32 varsCount;
/*
src         = byte ptr -2Eh
var_1A            = word ptr -1Ah
var_18            = word ptr -18h
var_16            = dword     ptr -16h
var_12            = word ptr -12h
var_10            = word ptr -10h
handle2           = word ptr -0Eh
fileHandle  = word ptr -0Ch
numFromTot  = word ptr -0Ah
memAvail    = dword     ptr -6
memBlocks   = word ptr -2*/

      _vm->_global->_disableVideoCfg = 0x11;
      _vm->_global->_disableMouseCfg = 0x15;

      soundVideo(1000, 1);

      handle2 = _vm->_dataio->openData("intro.stk");
      if (handle2 >= 0) {
            _vm->_dataio->closeData(handle2);
            _vm->_dataio->openDataFile("intro.stk");
      }

      _vm->_util->initInput();

      _vm->_video->setHandlers();
      _vm->_video->initPrimary(_vm->_global->_videoMode);
      _vm->_global->_mouseXShift = 1;
      _vm->_global->_mouseYShift = 1;

      _vm->_game->_totTextData = 0;
      _vm->_game->_totFileData = 0;
      _vm->_game->_totResourceTable = 0;
      _vm->_global->_inter_variables = 0;
      _palDesc = new Video::PalDesc;

      if (_vm->_global->_videoMode != 0x13)
            error("initGame: Only 0x13 video mode is supported!");

      _palDesc->vgaPal = _vm->_draw->_vgaPalette;
      _palDesc->unused1 = _vm->_draw->_unusedPalette1;
      _palDesc->unused2 = _vm->_draw->_unusedPalette2;
      _vm->_video->setFullPalette(_palDesc);

      for (i = 0; i < 8; i++)
            _vm->_draw->_fonts[i] = 0;

      handle = _vm->_dataio->openData("intro.inf");

      if (handle < 0) {
            for (i = 0; i < 4; i++) {
                  handle2 = _vm->_dataio->openData(_fontNames[i]);
                  if (handle2 >= 0) {
                        _vm->_dataio->closeData(handle2);
                        _vm->_draw->_fonts[i] =
                            _vm->_util->loadFont(_fontNames[i]);
                  }
            }
      } else {
            _vm->_dataio->closeData(handle);

            infPtr = _vm->_dataio->getData("intro.inf");
            infBuf = infPtr;

            infEnd = infBuf + _vm->_dataio->getDataSize("intro.inf");

            for (i = 0; i < 4; i++, infPtr++) {
                  for (j = 0; infPtr < infEnd && *infPtr >= ' ';
                      j++, infPtr++)
                        buffer[j] = *infPtr;

                  buffer[j] = 0;
                  strcat(buffer, ".let");
                  handle2 = _vm->_dataio->openData(buffer);
                  if (handle2 >= 0) {
                        _vm->_dataio->closeData(handle2);
                        _vm->_draw->_fonts[i] = _vm->_util->loadFont(buffer);
                  }

                  if (infPtr == infEnd)
                        break;

                  infPtr++;
                  if (infPtr == infEnd)
                        break;
            }
            delete[] infBuf;
      }

      if (totName != 0) {
            strcpy(buffer, totName);
            strcat(buffer, ".tot");
      } else {
            strcpy(buffer, "intro.tot");
      }

      handle = _vm->_dataio->openData(buffer);

      if (handle >= 0) {
            // Get variables count
            _vm->_dataio->seekData(handle, 0x2c, SEEK_SET);
            _vm->_dataio->readData(handle, (char *)&varsCount, 4);
            varsCount = FROM_LE_32(varsCount);
            _vm->_dataio->closeData(handle);

            _vm->_global->_inter_variables = new char[varsCount * 4];
            memset(_vm->_global->_inter_variables, 0, varsCount * 4);

            strcpy(_vm->_game->_curTotFile, buffer);

            _vm->_cdrom->testCD(1, "GOB");
            _vm->_cdrom->readLIC("gob.lic");
            _vm->_game->start();

            _vm->_cdrom->stopPlaying();
            _vm->_cdrom->freeLICbuffer();

            delete[] _vm->_global->_inter_variables;
            delete[] _vm->_game->_totFileData;
            if (_vm->_game->_totTextData) {
                  if (_vm->_game->_totTextData->items)
                        delete[] _vm->_game->_totTextData->items;
                  delete _vm->_game->_totTextData;
            }
            if (_vm->_game->_totResourceTable) {
                  delete[] _vm->_game->_totResourceTable->items;
                  delete _vm->_game->_totResourceTable;
            }
      }

      for (i = 0; i < 4; i++) {
            if (_vm->_draw->_fonts[i] != 0)
                  _vm->_util->freeFont(_vm->_draw->_fonts[i]);
      }

      delete _palDesc;
      _vm->_dataio->closeDataFile();
      _vm->_video->initPrimary(-1);
      cleanup();
}

}                       // End of namespace Gob

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