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Diffstat (limited to 'engines/scumm/resource_v4.cpp')
| -rw-r--r-- | engines/scumm/resource_v4.cpp | 193 |
1 files changed, 193 insertions, 0 deletions
diff --git a/engines/scumm/resource_v4.cpp b/engines/scumm/resource_v4.cpp new file mode 100644 index 0000000000..0f8530af2d --- /dev/null +++ b/engines/scumm/resource_v4.cpp @@ -0,0 +1,193 @@ +/* ScummVM - Scumm Interpreter + * Copyright (C) 2001 Ludvig Strigeus + * Copyright (C) 2001-2006 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. + * + * $URL$ + * $Id$ + * + */ + +#include "common/stdafx.h" +#include "scumm/scumm.h" +#include "scumm/intern.h" +#include "scumm/resource.h" +#include "scumm/util.h" + +namespace Scumm { + +void ScummEngine_v4::readIndexFile() { + uint16 blocktype; + uint32 itemsize; + int numblock = 0; + + debug(9, "readIndexFile()"); + + closeRoom(); + openRoom(0); + + while (!_fileHandle->eof()) { + // Figure out the sizes of various resources + itemsize = _fileHandle->readUint32LE(); + blocktype = _fileHandle->readUint16LE(); + if (_fileHandle->ioFailed()) + break; + + switch (blocktype) { + case 0x4E52: // 'NR' + _fileHandle->readUint16LE(); + break; + case 0x5230: // 'R0' + _numRooms = _fileHandle->readUint16LE(); + break; + case 0x5330: // 'S0' + _numScripts = _fileHandle->readUint16LE(); + break; + case 0x4E30: // 'N0' + _numSounds = _fileHandle->readUint16LE(); + break; + case 0x4330: // 'C0' + _numCostumes = _fileHandle->readUint16LE(); + break; + case 0x4F30: // 'O0' + _numGlobalObjects = _fileHandle->readUint16LE(); + break; + } + _fileHandle->seek(itemsize - 8, SEEK_CUR); + } + + _fileHandle->clearIOFailed(); + _fileHandle->seek(0, SEEK_SET); + + readMAXS(0); + allocateArrays(); + + while (1) { + itemsize = _fileHandle->readUint32LE(); + + if (_fileHandle->ioFailed()) + break; + + blocktype = _fileHandle->readUint16LE(); + + numblock++; + + switch (blocktype) { + + case 0x4E52: // 'NR' + // Names of rooms. Maybe we should put them into a table, for use by the debugger? + for (int room; (room = _fileHandle->readByte()); ) { + char buf[10]; + _fileHandle->read(buf, 9); + buf[9] = 0; + for (int i = 0; i < 9; i++) + buf[i] ^= 0xFF; + debug(5, "Room %d: '%s'", room, buf); + } + break; + + case 0x5230: // 'R0' + readResTypeList(rtRoom, MKID('ROOM'), "room"); + break; + + case 0x5330: // 'S0' + readResTypeList(rtScript, MKID('SCRP'), "script"); + break; + + case 0x4E30: // 'N0' + readResTypeList(rtSound, MKID('SOUN'), "sound"); + break; + + case 0x4330: // 'C0' + readResTypeList(rtCostume, MKID('COST'), "costume"); + break; + + case 0x4F30: // 'O0' + readGlobalObjects(); + break; + + default: + // FIXME: this is a little hack because Indy3 FM-TOWNS has + // 32 extra bytes of unknown meaning appended to 00.LFL + if (!(_gameId == GID_INDY3 && _platform == Common::kPlatformFMTowns)) + error("Bad ID %c%c found in directory!", blocktype & 0xFF, blocktype >> 8); + return; + } + } + closeRoom(); +} + +void ScummEngine_v4::loadCharset(int no) { + uint32 size; + memset(_charsetData, 0, sizeof(_charsetData)); + + checkRange(4, 0, no, "Loading illegal charset %d"); + closeRoom(); + + Common::File file; + char buf[20]; + + sprintf(buf, "%03d.LFL", 900 + no); + file.open(buf); + + if (file.isOpen() == false) { + error("loadCharset(%d): Missing file charset: %s", no, buf); + } + + size = file.readUint32LE() + 11; + file.read(res.createResource(rtCharset, no, size), size); +} + +void ScummEngine_v4::readMAXS(int blockSize) { + // FIXME - I'm not sure for those values yet, they will have to be rechecked + + _numVariables = 800; // 800 + _numBitVariables = 4096; // 2048 + _numLocalObjects = 200; // 200 + _numArray = 50; + _numVerbs = 100; + _numNewNames = 50; + _objectRoomTable = NULL; + _numCharsets = 9; // 9 + _numInventory = 80; // 80 + _numGlobalScripts = 200; + _numFlObject = 50; + + _shadowPaletteSize = 256; + + _shadowPalette = (byte *) calloc(_shadowPaletteSize, 1); // FIXME - needs to be removed later +} + +void ScummEngine_v4::readGlobalObjects() { + int i; + int num = _fileHandle->readUint16LE(); + assert(num == _numGlobalObjects); + + uint32 bits; + byte tmp; + for (i = 0; i != num; i++) { + bits = _fileHandle->readByte(); + bits |= _fileHandle->readByte() << 8; + bits |= _fileHandle->readByte() << 16; + _classData[i] = bits; + tmp = _fileHandle->readByte(); + _objectOwnerTable[i] = tmp & OF_OWNER_MASK; + _objectStateTable[i] = tmp >> OF_STATE_SHL; + } +} + + +} // End of namespace Scumm |