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prc.cpp

/* ScummVM - Scumm Interpreter
 * Copyright (C) 2006 The ScummVM project
 *
 * cinE Engine is (C) 2004-2005 by CinE Team
 *
 * 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/cine/prc.cpp $
 * $Id: prc.cpp 21500 2006-03-29 15:59:37Z fingolfin $
 *
 */

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

#include "cine/cine.h"
#include "cine/auto00.h"
#include "cine/various.h"

#include "common/config-manager.h"

namespace Cine {

prcLinkedListStruct globalScriptsHead;
prcLinkedListStruct objScriptList;

//char currentPrcName[20];

void resetglobalScriptsHead(void) {
      globalScriptsHead.next = NULL;
      globalScriptsHead.scriptIdx = -1;
}

void freePrcLinkedList(void) {
      prcLinkedListStruct *currentHead = globalScriptsHead.next;

      while (currentHead) {
            prcLinkedListStruct *temp;

            assert(currentHead);

            temp = currentHead->next;

            free(currentHead);

            currentHead = temp;
      }

      resetglobalScriptsHead();
}

void loadPrc(const char *pPrcName) {
      byte i;
      uint16 numScripts;
      const byte *scriptPtr;

      assert(pPrcName);

      for (i = 0; i < NUM_MAX_SCRIPT; i++) {
            if (scriptTable[i].ptr) {
                  assert(scriptTable[i].ptr);
                  free(scriptTable[i].ptr);
                  scriptTable[i].ptr = NULL;
                  scriptTable[i].size = 0;
            }
      }

      checkDataDisk(-1);
      if ((gameType == Cine::GID_FW) && (!strcmp(pPrcName, "AUTO00.PRC"))) {
            if (!ConfMan.getBool("copy_protection"))
                  scriptPtr = AUT000;
            else
                  scriptPtr = readFile(pPrcName);
      } else {
            scriptPtr = readBundleFile(findFileInBundle(pPrcName));
            assert(scriptPtr);
      }

      setMouseCursor(MOUSE_CURSOR_DISK);

      numScripts = READ_BE_UINT16(scriptPtr); scriptPtr += 2;
      assert(numScripts <= NUM_MAX_SCRIPT);

      for (i = 0; i < numScripts; i++) {
            scriptTable[i].size = READ_BE_UINT16(scriptPtr); scriptPtr += 2;
      }

      for (i = 0; i < numScripts; i++) {
            uint16 size = scriptTable[i].size;
            if (size) {
                  scriptTable[i].ptr = (byte *) malloc(size);
                  assert(scriptTable[i].ptr);
                  memcpy(scriptTable[i].ptr, scriptPtr, size);
                  scriptPtr += size;
                  computeScriptStack(scriptTable[i].ptr, scriptTable[i].stack, size);
            }
      }
}

} // End of namespace Cine

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