mirror of
https://github.com/libretro/scummvm.git
synced 2024-12-23 02:11:38 +00:00
346 lines
12 KiB
C++
346 lines
12 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* $URL$
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* $Id$
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*
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*/
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#include "mohawk/resource.h"
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#include "common/util.h"
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namespace Mohawk {
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MohawkArchive::MohawkArchive() {
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_mhk = NULL;
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_types = NULL;
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_fileTable = NULL;
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}
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void MohawkArchive::open(Common::String filename) {
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Common::File *file = new Common::File();
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if (!file->open(filename.c_str()))
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error ("Could not open file \'%s\'", filename.c_str());
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_curFile = filename;
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open(file);
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}
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void MohawkArchive::close() {
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delete _mhk; _mhk = NULL;
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delete[] _types; _types = NULL;
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delete[] _fileTable; _fileTable = NULL;
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_curFile.clear();
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}
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void MohawkArchive::open(Common::SeekableReadStream *stream) {
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// Make sure no other file is open...
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close();
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_mhk = stream;
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if (_mhk->readUint32BE() != ID_MHWK)
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error ("Could not find tag \'MHWK\'");
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_fileSize = _mhk->readUint32BE();
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if (_mhk->readUint32BE() != ID_RSRC)
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error ("Could not find tag \'RSRC\'");
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_rsrc.version = _mhk->readUint16BE();
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if (_rsrc.version != 0x100)
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error("Unsupported Mohawk resource version %d.%d", (_rsrc.version >> 8) & 0xff, _rsrc.version & 0xff);
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_rsrc.compaction = _mhk->readUint16BE(); // Only used in creation, not in reading
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_rsrc.filesize = _mhk->readUint32BE();
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_rsrc.abs_offset = _mhk->readUint32BE();
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_rsrc.file_table_offset = _mhk->readUint16BE();
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_rsrc.file_table_size = _mhk->readUint16BE();
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debug (3, "Absolute Offset = %08x", _rsrc.abs_offset);
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/////////////////////////////////
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//Resource Dir
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/////////////////////////////////
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// Type Table
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_mhk->seek(_rsrc.abs_offset);
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_typeTable.name_offset = _mhk->readUint16BE();
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_typeTable.resource_types = _mhk->readUint16BE();
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debug (0, "Name List Offset = %04x Number of Resource Types = %04x", _typeTable.name_offset, _typeTable.resource_types);
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_types = new Type[_typeTable.resource_types];
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for (uint16 i = 0; i < _typeTable.resource_types; i++) {
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_types[i].tag = _mhk->readUint32BE();
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_types[i].resource_table_offset = _mhk->readUint16BE();
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_types[i].name_table_offset = _mhk->readUint16BE();
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// HACK: Zoombini's SND resource starts will a NULL.
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if (_types[i].tag == ID_SND)
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debug (3, "Type[%02d]: Tag = \'SND\' ResTable Offset = %04x NameTable Offset = %04x", i, _types[i].resource_table_offset, _types[i].name_table_offset);
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else
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debug (3, "Type[%02d]: Tag = \'%s\' ResTable Offset = %04x NameTable Offset = %04x", i, tag2str(_types[i].tag), _types[i].resource_table_offset, _types[i].name_table_offset);
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// Resource Table
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_mhk->seek(_rsrc.abs_offset + _types[i].resource_table_offset);
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_types[i].resTable.resources = _mhk->readUint16BE();
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debug (3, "Resources = %04x", _types[i].resTable.resources);
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_types[i].resTable.entries = new Type::ResourceTable::Entries[_types[i].resTable.resources];
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for (uint16 j = 0; j < _types[i].resTable.resources; j++) {
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_types[i].resTable.entries[j].id = _mhk->readUint16BE();
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_types[i].resTable.entries[j].index = _mhk->readUint16BE();
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debug (4, "Entry[%02x]: ID = %04x (%d) Index = %04x", j, _types[i].resTable.entries[j].id, _types[i].resTable.entries[j].id, _types[i].resTable.entries[j].index);
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}
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// Name Table
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_mhk->seek(_rsrc.abs_offset + _types[i].name_table_offset);
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_types[i].nameTable.num = _mhk->readUint16BE();
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debug (3, "Names = %04x", _types[i].nameTable.num);
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_types[i].nameTable.entries = new Type::NameTable::Entries[_types[i].nameTable.num];
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for (uint16 j = 0; j < _types[i].nameTable.num; j++) {
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_types[i].nameTable.entries[j].offset = _mhk->readUint16BE();
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_types[i].nameTable.entries[j].index = _mhk->readUint16BE();
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debug (4, "Entry[%02x]: Name List Offset = %04x Index = %04x", j, _types[i].nameTable.entries[j].offset, _types[i].nameTable.entries[j].index);
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// Name List
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uint32 pos = _mhk->pos();
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_mhk->seek(_rsrc.abs_offset + _typeTable.name_offset + _types[i].nameTable.entries[j].offset);
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char c = (char)_mhk->readByte();
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while (c != 0) {
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_types[i].nameTable.entries[j].name += c;
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c = (char)_mhk->readByte();
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}
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debug (3, "Name = \'%s\'", _types[i].nameTable.entries[j].name.c_str());
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// Get back to next entry
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_mhk->seek(pos);
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}
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// Return to next TypeTable entry
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_mhk->seek(_rsrc.abs_offset + (i + 1) * 8 + 4);
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debug (3, "\n");
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}
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_mhk->seek(_rsrc.abs_offset + _rsrc.file_table_offset);
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_fileTableAmount = _mhk->readUint32BE();
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_fileTable = new FileTable[_fileTableAmount];
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for (uint32 i = 0; i < _fileTableAmount; i++) {
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_fileTable[i].offset = _mhk->readUint32BE();
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_fileTable[i].dataSize = _mhk->readUint16BE();
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_fileTable[i].dataSize += _mhk->readByte() << 16; // Get bits 15-24 of dataSize too
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_fileTable[i].flags = _mhk->readByte();
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_fileTable[i].unk = _mhk->readUint16BE();
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// Add in another 3 bits for file size from the flags.
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// The flags are useless to us except for doing this ;)
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_fileTable[i].dataSize += (_fileTable[i].flags & 7) << 24;
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debug (4, "File[%02x]: Offset = %08x DataSize = %07x Flags = %02x Unk = %04x", i, _fileTable[i].offset, _fileTable[i].dataSize, _fileTable[i].flags, _fileTable[i].unk);
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}
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}
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bool MohawkArchive::hasResource(uint32 tag, uint16 id) {
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if (!_mhk)
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return false;
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int16 typeIndex = getTypeIndex(tag);
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if (typeIndex < 0)
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return false;
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return (getIdIndex(typeIndex, id) >= 0);
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}
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uint32 MohawkArchive::getOffset(uint32 tag, uint16 id) {
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assert(_mhk);
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int16 typeIndex = getTypeIndex(tag);
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assert(typeIndex >= 0);
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int16 idIndex = getIdIndex(typeIndex, id);
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assert(idIndex >= 0);
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return _fileTable[_types[typeIndex].resTable.entries[idIndex].index - 1].offset;
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}
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Common::SeekableReadStream *MohawkArchive::getRawData(uint32 tag, uint16 id) {
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if (!_mhk)
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error ("MohawkArchive::getRawData - No File in Use");
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int16 typeIndex = getTypeIndex(tag);
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if (typeIndex < 0)
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error ("Could not find a tag of \'%s\' in file \'%s\'", tag2str(tag), _curFile.c_str());
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int16 idIndex = getIdIndex(typeIndex, id);
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if (idIndex < 0)
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error ("Could not find \'%s\' %04x in file \'%s\'", tag2str(tag), id, _curFile.c_str());
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// Note: the fileTableIndex is based off 1, not 0. So, subtract 1
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uint16 fileTableIndex = _types[typeIndex].resTable.entries[idIndex].index - 1;
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// WORKAROUND: tMOV resources pretty much ignore the size part of the file table,
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// as the original just passed the full Mohawk file to QuickTime and the offset.
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// We need to do this because of the way Mohawk is set up (this is much more "proper"
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// than passing _mhk at the right offset). We may want to do that in the future, though.
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if (_types[typeIndex].tag == ID_TMOV) {
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if (fileTableIndex == _fileTableAmount)
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return new Common::SeekableSubReadStream(_mhk, _fileTable[fileTableIndex].offset, _mhk->size());
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else
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return new Common::SeekableSubReadStream(_mhk, _fileTable[fileTableIndex].offset, _fileTable[fileTableIndex + 1].offset);
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}
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return new Common::SeekableSubReadStream(_mhk, _fileTable[fileTableIndex].offset, _fileTable[fileTableIndex].offset + _fileTable[fileTableIndex].dataSize);
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}
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void LivingBooksArchive_v1::open(Common::SeekableReadStream *stream) {
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close();
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_mhk = stream;
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// This is for the "old" Mohawk resource format used in some older
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// Living Books. It is very similar, just missing the MHWK tag and
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// some other minor differences, especially with the file table
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// being merged into the resource table.
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uint32 headerSize = _mhk->readUint32BE();
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// NOTE: There are differences besides endianness! (Subtle changes,
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// but different).
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if (headerSize == 6) { // We're in Big Endian mode (Macintosh)
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_mhk->readUint16BE(); // Resource Table Size
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_typeTable.resource_types = _mhk->readUint16BE();
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_types = new OldType[_typeTable.resource_types];
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debug (0, "Old Mohawk File (Macintosh): Number of Resource Types = %04x", _typeTable.resource_types);
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for (uint16 i = 0; i < _typeTable.resource_types; i++) {
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_types[i].tag = _mhk->readUint32BE();
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_types[i].resource_table_offset = (uint16)_mhk->readUint32BE() + 6;
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_mhk->readUint32BE(); // Unknown (always 0?)
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debug (3, "Type[%02d]: Tag = \'%s\' ResTable Offset = %04x", i, tag2str(_types[i].tag), _types[i].resource_table_offset);
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uint32 oldPos = _mhk->pos();
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// Resource Table/File Table
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_mhk->seek(_types[i].resource_table_offset);
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_types[i].resTable.resources = _mhk->readUint16BE();
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_types[i].resTable.entries = new OldType::ResourceTable::Entries[_types[i].resTable.resources];
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for (uint16 j = 0; j < _types[i].resTable.resources; j++) {
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_types[i].resTable.entries[j].id = _mhk->readUint16BE();
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_types[i].resTable.entries[j].offset = _mhk->readUint32BE();
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_types[i].resTable.entries[j].size = _mhk->readByte() << 16;
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_types[i].resTable.entries[j].size += _mhk->readUint16BE();
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_mhk->skip(5); // Unknown (always 0?)
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debug (4, "Entry[%02x]: ID = %04x (%d)\tOffset = %08x, Size = %08x", j, _types[i].resTable.entries[j].id, _types[i].resTable.entries[j].id, _types[i].resTable.entries[j].offset, _types[i].resTable.entries[j].size);
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}
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_mhk->seek(oldPos);
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debug (3, "\n");
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}
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} else if (SWAP_BYTES_32(headerSize) == 6) { // We're in Little Endian mode (Windows)
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_mhk->readUint16LE(); // Resource Table Size
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_typeTable.resource_types = _mhk->readUint16LE();
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_types = new OldType[_typeTable.resource_types];
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debug (0, "Old Mohawk File (Windows): Number of Resource Types = %04x", _typeTable.resource_types);
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for (uint16 i = 0; i < _typeTable.resource_types; i++) {
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_types[i].tag = _mhk->readUint32LE();
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_types[i].resource_table_offset = _mhk->readUint16LE() + 6;
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_mhk->readUint16LE(); // Unknown (always 0?)
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debug (3, "Type[%02d]: Tag = \'%s\' ResTable Offset = %04x", i, tag2str(_types[i].tag), _types[i].resource_table_offset);
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uint32 oldPos = _mhk->pos();
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// Resource Table/File Table
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_mhk->seek(_types[i].resource_table_offset);
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_types[i].resTable.resources = _mhk->readUint16LE();
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_types[i].resTable.entries = new OldType::ResourceTable::Entries[_types[i].resTable.resources];
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for (uint16 j = 0; j < _types[i].resTable.resources; j++) {
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_types[i].resTable.entries[j].id = _mhk->readUint16LE();
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_types[i].resTable.entries[j].offset = _mhk->readUint32LE();
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_types[i].resTable.entries[j].size = _mhk->readUint16LE();
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_mhk->readUint32LE(); // Unknown (always 0?)
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debug (4, "Entry[%02x]: ID = %04x (%d)\tOffset = %08x, Size = %08x", j, _types[i].resTable.entries[j].id, _types[i].resTable.entries[j].id, _types[i].resTable.entries[j].offset, _types[i].resTable.entries[j].size);
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}
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_mhk->seek(oldPos);
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debug (3, "\n");
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}
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} else
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error("Could not determine type of Old Mohawk resource");
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}
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uint32 LivingBooksArchive_v1::getOffset(uint32 tag, uint16 id) {
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assert(_mhk);
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int16 typeIndex = getTypeIndex(tag);
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assert(typeIndex >= 0);
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int16 idIndex = getIdIndex(typeIndex, id);
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assert(idIndex >= 0);
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return _types[typeIndex].resTable.entries[idIndex].offset;
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}
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Common::SeekableReadStream *LivingBooksArchive_v1::getRawData(uint32 tag, uint16 id) {
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if (!_mhk)
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error ("LivingBooksArchive_v1::getRawData - No File in Use");
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int16 typeIndex = getTypeIndex(tag);
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if (typeIndex < 0)
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error ("Could not find a tag of \'%s\' in file \'%s\'", tag2str(tag), _curFile.c_str());
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int16 idIndex = getIdIndex(typeIndex, id);
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if (idIndex < 0)
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error ("Could not find \'%s\' %04x in file \'%s\'", tag2str(tag), id, _curFile.c_str());
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return new Common::SeekableSubReadStream(_mhk, _types[typeIndex].resTable.entries[idIndex].offset, _types[typeIndex].resTable.entries[idIndex].offset + _types[typeIndex].resTable.entries[idIndex].size);
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}
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} // End of namespace Mohawk
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