/* 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.
 *
 * $URL$
 * $Id$
 *
 */

#include "cine/cine.h"

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_PTR(currentHead);

		temp = currentHead->next;

		free(currentHead);

		currentHead = temp;
	}

	resetglobalScriptsHead();
}

void loadPrc(const char *pPrcName) {
	uint8 i;
	uint16 numEntry;

	ASSERT_PTR(pPrcName);

	for (i = 0; i < NUM_MAX_SCRIPT; i++) {
		if (scriptTable[i].ptr) {
			ASSERT_PTR(scriptTable[i].ptr);

			free(scriptTable[i].ptr);

			scriptTable[i].ptr = NULL;
			scriptTable[i].var4 = 0;
		}
	}

	checkDataDisk(-1);
	if ((gameType == Cine::GID_FW) && (!strcmp(pPrcName, "AUTO00.PRC"))) {
		unsigned char *readPtr = AUT000;

		processPendingUpdates(1);

		numEntry = *(unsigned short int *)readPtr;
		readPtr += 2;
		flipU16(&numEntry);

		ASSERT(numEntry <= NUM_MAX_SCRIPT);

		for (i = 0; i < numEntry; i++) {
			scriptTable[i].var4 = *(unsigned short int *)readPtr;
			readPtr += 2;
			flipU16(&scriptTable[i].var4);
		}

		for (i = 0; i < numEntry; i++) {
			uint16 size;

			size = scriptTable[i].var4;

			if (size) {
				scriptTable[i].ptr = (byte *)malloc(size);

				ASSERT_PTR(scriptTable[i].ptr);

				memcpy(scriptTable[i].ptr, readPtr, size);
				readPtr += size;

				computeScriptStack(scriptTable[i].ptr, scriptTable[i].stack, size);
			}
		}
	} else {
		uint8 *ptr = readBundleFile(findFileInBundle(pPrcName));

		ASSERT_PTR(ptr);

		processPendingUpdates(1);

		numEntry = *(uint16 *) ptr;
		ptr += 2;
		flipU16(&numEntry);

		ASSERT(numEntry <= NUM_MAX_SCRIPT);

		for (i = 0; i < numEntry; i++) {
			scriptTable[i].var4 = *(uint16 *) ptr;
			ptr += 2;
			flipU16(&scriptTable[i].var4);
		}

		for (i = 0; i < numEntry; i++) {
			uint16 size;

			size = scriptTable[i].var4;

			if (size) {
				scriptTable[i].ptr = (byte *) malloc(size);

				ASSERT_PTR(scriptTable[i].ptr);

				memcpy(scriptTable[i].ptr, ptr, size);
				ptr += size;

				computeScriptStack(scriptTable[i].ptr, scriptTable[i].stack, size);
			}
		}
	}
}