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https://github.com/libretro/scummvm.git
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117 lines
3.3 KiB
C++
117 lines
3.3 KiB
C++
/* ScummVM - Scumm Interpreter
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* Copyright (C) 2002-2003 The ScummVM project
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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* $Header$
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*
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*/
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#include "stdafx.h"
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#include "scumm.h"
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#include "intern.h"
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#include "resource.h"
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void Scumm_v2::readClassicIndexFile() {
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error("Classic non-blocked format not yet implemented");
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}
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void Scumm_v2::readEnhancedIndexFile() {
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_numGlobalObjects = _fileHandle.readUint16LE();
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_fileHandle.seek(_numGlobalObjects, SEEK_CUR); // Skip object flags
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_numRooms = _fileHandle.readByte();
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_fileHandle.seek(_numRooms * 3, SEEK_CUR);
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_numCostumes = _fileHandle.readByte();
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_fileHandle.seek(_numCostumes * 3, SEEK_CUR);
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_numScripts = _fileHandle.readByte();
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_fileHandle.seek(_numScripts * 3, SEEK_CUR);
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_numSounds = _fileHandle.readByte();
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_fileHandle.clearIOFailed();
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_fileHandle.seek(0, SEEK_SET);
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readMAXS();
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// Jamieson630: palManipulate variable initialization
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_palManipCounter = 0;
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_palManipPalette = 0; // Will allocate when needed
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_palManipIntermediatePal = 0; // Will allocate when needed
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_fileHandle.readUint16LE(); /* version magic number */
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int num = _fileHandle.readUint16LE();
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assert(num == _numGlobalObjects);
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for (int i = 0; i != num; i++) {
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byte tmp = _fileHandle.readByte();
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_objectOwnerTable[i] = tmp & OF_OWNER_MASK;
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_objectStateTable[i] = tmp >> OF_STATE_SHL;
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}
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readResTypeList(rtRoom, MKID('ROOM'), "room");
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readResTypeList(rtCostume, MKID('COST'), "costume");
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readResTypeList(rtScript, MKID('SCRP'), "script");
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readResTypeList(rtSound, MKID('SOUN'), "sound");
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}
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void Scumm_v2::readIndexFile() {
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int magic = 0;
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debug(9, "readIndexFile()");
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closeRoom();
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openRoom(0);
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magic = _fileHandle.readUint16LE();
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switch(magic) {
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case 0x0100:
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warning("Enhanced V2 game detected");
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readEnhancedIndexFile();
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break;
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case 0x0A31:
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warning("Classic V1 game detected");
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readClassicIndexFile();
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break;
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default:
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error("Unknown magic id (0x%X) - this version is unsupported", magic);
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break;
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}
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closeRoom();
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}
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void Scumm_v2::readMAXS() {
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// FIXME - I'm not sure for those values yet, they will have to be rechecked
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_numVariables = 800; // 800
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_numBitVariables = 4096; // 2048
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_numLocalObjects = 200; // 200
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_numArray = 50;
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_numVerbs = 100;
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_numNewNames = 0;
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_objectRoomTable = NULL;
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_numCharsets = 9; // 9
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_numInventory = 80; // 80
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_numGlobalScripts = 200;
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_numFlObject = 50;
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_shadowPaletteSize = 256;
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_shadowPalette = (byte *) calloc(_shadowPaletteSize, 1); // FIXME - needs to be removed later
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allocateArrays();
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}
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void Scumm_v2::loadCharset(int num) {
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// Stub, V2 font resources are hardcoded into the engine. Possibly do some
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// kind of language detection here in the future for multiple fonts...
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}
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