mirror of
https://github.com/libretro/scummvm.git
synced 2024-12-13 12:39:56 +00:00
0f2c6cd9ea
Common::MacResMan is now able to open files from a specified Common::Archive. This is a bit hacky as dynamic_cast is used to break the Archive encapsulation to retreive the underlying FSNode. It should however be more correct than the previous code that assumed files were at the root of the currently running game's path. AdvancedDetector constructs a Common::Archive from its FileMap based filesystem cache and uses it to detect the mac resource fork files. This cuts the time it takes to run the detection code with all the engines enabled as dynamic plugins on the 3DS to 30 s from 280 s.
711 lines
18 KiB
C++
711 lines
18 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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*
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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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*
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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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*/
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#include "common/scummsys.h"
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#include "common/debug.h"
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#include "common/util.h"
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#include "common/file.h"
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#include "common/fs.h"
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#include "common/macresman.h"
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#include "common/md5.h"
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#include "common/substream.h"
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#include "common/textconsole.h"
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#include "common/archive.h"
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#ifdef MACOSX
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#include "common/config-manager.h"
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#endif
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namespace Common {
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#define MBI_ZERO1 0
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#define MBI_NAMELEN 1
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#define MBI_ZERO2 74
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#define MBI_ZERO3 82
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#define MBI_DFLEN 83
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#define MBI_RFLEN 87
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#define MAXNAMELEN 63
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MacResManager::MacResManager() {
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_stream = nullptr;
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// _baseFileName cleared by String constructor
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_mode = kResForkNone;
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_resForkOffset = -1;
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_resForkSize = 0;
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_dataOffset = 0;
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_dataLength = 0;
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_mapOffset = 0;
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_mapLength = 0;
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_resMap.reset();
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_resTypes = nullptr;
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_resLists = nullptr;
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}
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MacResManager::~MacResManager() {
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close();
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}
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void MacResManager::close() {
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_resForkOffset = -1;
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_mode = kResForkNone;
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for (int i = 0; i < _resMap.numTypes; i++) {
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for (int j = 0; j < _resTypes[i].items; j++)
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if (_resLists[i][j].nameOffset != -1)
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delete[] _resLists[i][j].name;
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delete[] _resLists[i];
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}
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delete[] _resLists; _resLists = nullptr;
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delete[] _resTypes; _resTypes = nullptr;
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delete _stream; _stream = nullptr;
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_resMap.numTypes = 0;
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}
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bool MacResManager::hasDataFork() const {
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return !_baseFileName.empty();
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}
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bool MacResManager::hasResFork() const {
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return !_baseFileName.empty() && _mode != kResForkNone;
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}
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uint32 MacResManager::getResForkDataSize() const {
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if (!hasResFork())
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return 0;
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_stream->seek(_resForkOffset + 4);
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return _stream->readUint32BE();
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}
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String MacResManager::computeResForkMD5AsString(uint32 length) const {
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if (!hasResFork())
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return String();
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_stream->seek(_resForkOffset);
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uint32 dataOffset = _stream->readUint32BE() + _resForkOffset;
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/* uint32 mapOffset = */ _stream->readUint32BE();
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uint32 dataLength = _stream->readUint32BE();
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SeekableSubReadStream resForkStream(_stream, dataOffset, dataOffset + dataLength);
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return computeStreamMD5AsString(resForkStream, MIN<uint32>(length, _resForkSize));
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}
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bool MacResManager::open(const String &fileName) {
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return open(fileName, SearchMan);
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}
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bool MacResManager::open(const String &fileName, Archive &archive) {
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close();
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#ifdef MACOSX
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// Check the actual fork on a Mac computer
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const ArchiveMemberPtr archiveMember = archive.getMember(fileName);
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const Common::FSNode *plainFsNode = dynamic_cast<const Common::FSNode *>(archiveMember.get());
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if (plainFsNode) {
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String fullPath = plainFsNode->getPath() + "/..namedfork/rsrc";
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FSNode resFsNode = FSNode(fullPath);
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SeekableReadStream *macResForkRawStream = resFsNode.createReadStream();
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if (macResForkRawStream && loadFromRawFork(*macResForkRawStream)) {
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_baseFileName = fileName;
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return true;
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}
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delete macResForkRawStream;
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}
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#endif
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// Prefer standalone files first, starting with raw forks
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SeekableReadStream *stream = archive.createReadStreamForMember(fileName + ".rsrc");
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if (stream && loadFromRawFork(*stream)) {
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_baseFileName = fileName;
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return true;
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}
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delete stream;
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// Then try for AppleDouble using Apple's naming
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stream = archive.createReadStreamForMember(constructAppleDoubleName(fileName));
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if (stream && loadFromAppleDouble(*stream)) {
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_baseFileName = fileName;
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return true;
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}
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delete stream;
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// Check .bin for MacBinary next
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stream = archive.createReadStreamForMember(fileName + ".bin");
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if (stream && loadFromMacBinary(*stream)) {
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_baseFileName = fileName;
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return true;
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}
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delete stream;
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// As a last resort, see if just the data fork exists
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stream = archive.createReadStreamForMember(fileName);
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if (stream) {
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_baseFileName = fileName;
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// Maybe file is in MacBinary but without .bin extension?
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// Check it here
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if (isMacBinary(*stream)) {
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stream->seek(0);
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if (loadFromMacBinary(*stream))
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return true;
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}
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stream->seek(0);
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_stream = stream;
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return true;
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}
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// The file doesn't exist
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return false;
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}
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bool MacResManager::exists(const String &fileName) {
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// Try the file name by itself
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if (File::exists(fileName))
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return true;
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// Try the .rsrc extension
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if (File::exists(fileName + ".rsrc"))
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return true;
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// Check if we have a MacBinary file
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File tempFile;
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if (tempFile.open(fileName + ".bin") && isMacBinary(tempFile))
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return true;
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// Check if we have an AppleDouble file
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if (tempFile.open(constructAppleDoubleName(fileName)) && tempFile.readUint32BE() == 0x00051607)
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return true;
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return false;
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}
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void MacResManager::listFiles(StringArray &files, const String &pattern) {
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// Base names discovered so far.
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typedef HashMap<String, bool, IgnoreCase_Hash, IgnoreCase_EqualTo> BaseNameSet;
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BaseNameSet baseNames;
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// List files itself.
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ArchiveMemberList memberList;
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SearchMan.listMatchingMembers(memberList, pattern);
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SearchMan.listMatchingMembers(memberList, pattern + ".rsrc");
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SearchMan.listMatchingMembers(memberList, pattern + ".bin");
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SearchMan.listMatchingMembers(memberList, constructAppleDoubleName(pattern));
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for (ArchiveMemberList::const_iterator i = memberList.begin(), end = memberList.end(); i != end; ++i) {
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String filename = (*i)->getName();
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// For raw resource forks and MacBinary files we strip the extension
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// here to obtain a valid base name.
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int lastDotPos = filename.size() - 1;
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for (; lastDotPos >= 0; --lastDotPos) {
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if (filename[lastDotPos] == '.') {
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break;
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}
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}
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if (lastDotPos != -1) {
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const char *extension = filename.c_str() + lastDotPos + 1;
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bool removeExtension = false;
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// TODO: Should we really keep filenames suggesting raw resource
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// forks or MacBinary files but not being such around? This might
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// depend on the pattern the client requests...
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if (!scumm_stricmp(extension, "rsrc")) {
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SeekableReadStream *stream = (*i)->createReadStream();
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removeExtension = stream && isRawFork(*stream);
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delete stream;
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} else if (!scumm_stricmp(extension, "bin")) {
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SeekableReadStream *stream = (*i)->createReadStream();
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removeExtension = stream && isMacBinary(*stream);
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delete stream;
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}
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if (removeExtension) {
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filename.erase(lastDotPos);
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}
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}
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// Strip AppleDouble '._' prefix if applicable.
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bool isAppleDoubleName = false;
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const String filenameAppleDoubleStripped = disassembleAppleDoubleName(filename, &isAppleDoubleName);
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if (isAppleDoubleName) {
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SeekableReadStream *stream = (*i)->createReadStream();
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if (stream->readUint32BE() == 0x00051607) {
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filename = filenameAppleDoubleStripped;
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}
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// TODO: Should we really keep filenames suggesting AppleDouble
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// but not being AppleDouble around? This might depend on the
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// pattern the client requests...
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delete stream;
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}
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baseNames[filename] = true;
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}
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// Append resulting base names to list to indicate found files.
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for (BaseNameSet::const_iterator i = baseNames.begin(), end = baseNames.end(); i != end; ++i) {
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files.push_back(i->_key);
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}
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}
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bool MacResManager::loadFromAppleDouble(SeekableReadStream &stream) {
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if (stream.readUint32BE() != 0x00051607) // tag
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return false;
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stream.skip(20); // version + home file system
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uint16 entryCount = stream.readUint16BE();
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for (uint16 i = 0; i < entryCount; i++) {
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uint32 id = stream.readUint32BE();
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uint32 offset = stream.readUint32BE();
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uint32 length = stream.readUint32BE(); // length
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if (id == 2) {
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// Found the resource fork!
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_resForkOffset = offset;
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_mode = kResForkAppleDouble;
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_resForkSize = length;
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return load(stream);
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}
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}
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return false;
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}
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bool MacResManager::isMacBinary(SeekableReadStream &stream) {
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byte infoHeader[MBI_INFOHDR];
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int resForkOffset = -1;
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if (stream.read(infoHeader, MBI_INFOHDR) != MBI_INFOHDR)
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return false;
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if (infoHeader[MBI_ZERO1] == 0 && infoHeader[MBI_ZERO2] == 0 &&
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infoHeader[MBI_ZERO3] == 0 && infoHeader[MBI_NAMELEN] <= MAXNAMELEN) {
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// Pull out fork lengths
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uint32 dataSize = READ_BE_UINT32(infoHeader + MBI_DFLEN);
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uint32 rsrcSize = READ_BE_UINT32(infoHeader + MBI_RFLEN);
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uint32 dataSizePad = (((dataSize + 127) >> 7) << 7);
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// Files produced by ISOBuster are not padded, thus, compare with the actual size
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//uint32 rsrcSizePad = (((rsrcSize + 127) >> 7) << 7);
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// Length check
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if (MBI_INFOHDR + dataSizePad + rsrcSize <= (uint32)stream.size()) {
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resForkOffset = MBI_INFOHDR + dataSizePad;
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}
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}
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if (resForkOffset < 0)
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return false;
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return true;
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}
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bool MacResManager::isRawFork(SeekableReadStream &stream) {
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// TODO: Is there a better way to detect whether this is a raw fork?
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const uint32 dataOffset = stream.readUint32BE();
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const uint32 mapOffset = stream.readUint32BE();
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const uint32 dataLength = stream.readUint32BE();
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const uint32 mapLength = stream.readUint32BE();
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return !stream.eos() && !stream.err()
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&& dataOffset < (uint32)stream.size() && dataOffset + dataLength <= (uint32)stream.size()
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&& mapOffset < (uint32)stream.size() && mapOffset + mapLength <= (uint32)stream.size();
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}
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bool MacResManager::loadFromMacBinary(SeekableReadStream &stream) {
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byte infoHeader[MBI_INFOHDR];
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stream.read(infoHeader, MBI_INFOHDR);
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// Maybe we have MacBinary?
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if (infoHeader[MBI_ZERO1] == 0 && infoHeader[MBI_ZERO2] == 0 &&
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infoHeader[MBI_ZERO3] == 0 && infoHeader[MBI_NAMELEN] <= MAXNAMELEN) {
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// Pull out fork lengths
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uint32 dataSize = READ_BE_UINT32(infoHeader + MBI_DFLEN);
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uint32 rsrcSize = READ_BE_UINT32(infoHeader + MBI_RFLEN);
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uint32 dataSizePad = (((dataSize + 127) >> 7) << 7);
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// Files produced by ISOBuster are not padded, thus, compare with the actual size
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//uint32 rsrcSizePad = (((rsrcSize + 127) >> 7) << 7);
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// Length check
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if (MBI_INFOHDR + dataSizePad + rsrcSize <= (uint32)stream.size()) {
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_resForkOffset = MBI_INFOHDR + dataSizePad;
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_resForkSize = rsrcSize;
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}
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}
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if (_resForkOffset < 0)
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return false;
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_mode = kResForkMacBinary;
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return load(stream);
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}
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bool MacResManager::loadFromRawFork(SeekableReadStream &stream) {
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_mode = kResForkRaw;
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_resForkOffset = 0;
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_resForkSize = stream.size();
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return load(stream);
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}
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bool MacResManager::load(SeekableReadStream &stream) {
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if (_mode == kResForkNone)
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return false;
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stream.seek(_resForkOffset);
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_dataOffset = stream.readUint32BE() + _resForkOffset;
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_mapOffset = stream.readUint32BE() + _resForkOffset;
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_dataLength = stream.readUint32BE();
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_mapLength = stream.readUint32BE();
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// do sanity check
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if (stream.eos() || _dataOffset >= (uint32)stream.size() || _mapOffset >= (uint32)stream.size() ||
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_dataLength + _mapLength > (uint32)stream.size()) {
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_resForkOffset = -1;
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_mode = kResForkNone;
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return false;
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}
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debug(7, "got header: data %d [%d] map %d [%d]",
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_dataOffset, _dataLength, _mapOffset, _mapLength);
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_stream = &stream;
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readMap();
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return true;
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}
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SeekableReadStream *MacResManager::getDataFork() {
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if (!_stream)
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return nullptr;
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if (_mode == kResForkMacBinary) {
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_stream->seek(MBI_DFLEN);
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uint32 dataSize = _stream->readUint32BE();
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return new SeekableSubReadStream(_stream, MBI_INFOHDR, MBI_INFOHDR + dataSize);
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}
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File *file = new File();
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if (file->open(_baseFileName))
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return file;
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delete file;
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return nullptr;
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}
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MacResIDArray MacResManager::getResIDArray(uint32 typeID) {
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int typeNum = -1;
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MacResIDArray res;
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for (int i = 0; i < _resMap.numTypes; i++)
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if (_resTypes[i].id == typeID) {
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typeNum = i;
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break;
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}
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if (typeNum == -1)
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return res;
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res.resize(_resTypes[typeNum].items);
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for (int i = 0; i < _resTypes[typeNum].items; i++)
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res[i] = _resLists[typeNum][i].id;
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return res;
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}
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MacResTagArray MacResManager::getResTagArray() {
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MacResTagArray tagArray;
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if (!hasResFork())
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return tagArray;
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tagArray.resize(_resMap.numTypes);
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for (uint32 i = 0; i < _resMap.numTypes; i++)
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tagArray[i] = _resTypes[i].id;
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return tagArray;
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}
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String MacResManager::getResName(uint32 typeID, uint16 resID) const {
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int typeNum = -1;
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for (int i = 0; i < _resMap.numTypes; i++)
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if (_resTypes[i].id == typeID) {
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typeNum = i;
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break;
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}
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if (typeNum == -1)
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return "";
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for (int i = 0; i < _resTypes[typeNum].items; i++)
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if (_resLists[typeNum][i].id == resID)
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return _resLists[typeNum][i].name;
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return "";
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}
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SeekableReadStream *MacResManager::getResource(uint32 typeID, uint16 resID) {
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int typeNum = -1;
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int resNum = -1;
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for (int i = 0; i < _resMap.numTypes; i++)
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if (_resTypes[i].id == typeID) {
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typeNum = i;
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break;
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}
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if (typeNum == -1)
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return nullptr;
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for (int i = 0; i < _resTypes[typeNum].items; i++)
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if (_resLists[typeNum][i].id == resID) {
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resNum = i;
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break;
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}
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if (resNum == -1)
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return nullptr;
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_stream->seek(_dataOffset + _resLists[typeNum][resNum].dataOffset);
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uint32 len = _stream->readUint32BE();
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// Ignore resources with 0 length
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if (!len)
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return nullptr;
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return _stream->readStream(len);
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}
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SeekableReadStream *MacResManager::getResource(const String &fileName) {
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for (uint32 i = 0; i < _resMap.numTypes; i++) {
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for (uint32 j = 0; j < _resTypes[i].items; j++) {
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if (_resLists[i][j].nameOffset != -1 && fileName.equalsIgnoreCase(_resLists[i][j].name)) {
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_stream->seek(_dataOffset + _resLists[i][j].dataOffset);
|
|
uint32 len = _stream->readUint32BE();
|
|
|
|
// Ignore resources with 0 length
|
|
if (!len)
|
|
return nullptr;
|
|
|
|
return _stream->readStream(len);
|
|
}
|
|
}
|
|
}
|
|
|
|
return nullptr;
|
|
}
|
|
|
|
SeekableReadStream *MacResManager::getResource(uint32 typeID, const String &fileName) {
|
|
for (uint32 i = 0; i < _resMap.numTypes; i++) {
|
|
if (_resTypes[i].id != typeID)
|
|
continue;
|
|
|
|
for (uint32 j = 0; j < _resTypes[i].items; j++) {
|
|
if (_resLists[i][j].nameOffset != -1 && fileName.equalsIgnoreCase(_resLists[i][j].name)) {
|
|
_stream->seek(_dataOffset + _resLists[i][j].dataOffset);
|
|
uint32 len = _stream->readUint32BE();
|
|
|
|
// Ignore resources with 0 length
|
|
if (!len)
|
|
return nullptr;
|
|
|
|
return _stream->readStream(len);
|
|
}
|
|
}
|
|
}
|
|
|
|
return nullptr;
|
|
}
|
|
|
|
void MacResManager::readMap() {
|
|
_stream->seek(_mapOffset + 22);
|
|
|
|
_resMap.resAttr = _stream->readUint16BE();
|
|
_resMap.typeOffset = _stream->readUint16BE();
|
|
_resMap.nameOffset = _stream->readUint16BE();
|
|
_resMap.numTypes = _stream->readUint16BE();
|
|
_resMap.numTypes++;
|
|
|
|
_stream->seek(_mapOffset + _resMap.typeOffset + 2);
|
|
_resTypes = new ResType[_resMap.numTypes];
|
|
|
|
for (int i = 0; i < _resMap.numTypes; i++) {
|
|
_resTypes[i].id = _stream->readUint32BE();
|
|
_resTypes[i].items = _stream->readUint16BE();
|
|
_resTypes[i].offset = _stream->readUint16BE();
|
|
_resTypes[i].items++;
|
|
|
|
debug(8, "resType: <%s> items: %d offset: %d (0x%x)", tag2str(_resTypes[i].id), _resTypes[i].items, _resTypes[i].offset, _resTypes[i].offset);
|
|
}
|
|
|
|
_resLists = new ResPtr[_resMap.numTypes];
|
|
|
|
for (int i = 0; i < _resMap.numTypes; i++) {
|
|
_resLists[i] = new Resource[_resTypes[i].items];
|
|
_stream->seek(_resTypes[i].offset + _mapOffset + _resMap.typeOffset);
|
|
|
|
for (int j = 0; j < _resTypes[i].items; j++) {
|
|
ResPtr resPtr = _resLists[i] + j;
|
|
|
|
resPtr->id = _stream->readUint16BE();
|
|
resPtr->nameOffset = _stream->readUint16BE();
|
|
resPtr->dataOffset = _stream->readUint32BE();
|
|
_stream->readUint32BE();
|
|
resPtr->name = nullptr;
|
|
|
|
resPtr->attr = resPtr->dataOffset >> 24;
|
|
resPtr->dataOffset &= 0xFFFFFF;
|
|
}
|
|
|
|
for (int j = 0; j < _resTypes[i].items; j++) {
|
|
if (_resLists[i][j].nameOffset != -1) {
|
|
_stream->seek(_resLists[i][j].nameOffset + _mapOffset + _resMap.nameOffset);
|
|
|
|
byte len = _stream->readByte();
|
|
_resLists[i][j].name = new char[len + 1];
|
|
_resLists[i][j].name[len] = 0;
|
|
_stream->read(_resLists[i][j].name, len);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
String MacResManager::constructAppleDoubleName(String name) {
|
|
// Insert "._" before the last portion of a path name
|
|
for (int i = name.size() - 1; i >= 0; i--) {
|
|
if (i == 0) {
|
|
name.insertChar('_', 0);
|
|
name.insertChar('.', 0);
|
|
} else if (name[i] == '/') {
|
|
name.insertChar('_', i + 1);
|
|
name.insertChar('.', i + 1);
|
|
break;
|
|
}
|
|
}
|
|
|
|
return name;
|
|
}
|
|
|
|
String MacResManager::disassembleAppleDoubleName(String name, bool *isAppleDouble) {
|
|
if (isAppleDouble) {
|
|
*isAppleDouble = false;
|
|
}
|
|
|
|
// Remove "._" before the last portion of a path name.
|
|
for (int i = name.size() - 1; i >= 0; --i) {
|
|
if (i == 0) {
|
|
if (name.size() > 2 && name[0] == '.' && name[1] == '_') {
|
|
name.erase(0, 2);
|
|
if (isAppleDouble) {
|
|
*isAppleDouble = true;
|
|
}
|
|
}
|
|
} else if (name[i] == '/') {
|
|
if ((uint)(i + 2) < name.size() && name[i + 1] == '.' && name[i + 2] == '_') {
|
|
name.erase(i + 1, 2);
|
|
if (isAppleDouble) {
|
|
*isAppleDouble = true;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
return name;
|
|
}
|
|
|
|
void MacResManager::dumpRaw() {
|
|
byte *data = nullptr;
|
|
uint dataSize = 0;
|
|
Common::DumpFile out;
|
|
|
|
for (int i = 0; i < _resMap.numTypes; i++) {
|
|
for (int j = 0; j < _resTypes[i].items; j++) {
|
|
_stream->seek(_dataOffset + _resLists[i][j].dataOffset);
|
|
uint32 len = _stream->readUint32BE();
|
|
|
|
if (dataSize < len) {
|
|
free(data);
|
|
data = (byte *)malloc(len);
|
|
dataSize = len;
|
|
}
|
|
|
|
Common::String filename = Common::String::format("./dumps/%s-%s-%d", _baseFileName.c_str(), tag2str(_resTypes[i].id), j);
|
|
_stream->read(data, len);
|
|
|
|
if (!out.open(filename)) {
|
|
warning("MacResManager::dumpRaw(): Can not open dump file %s", filename.c_str());
|
|
return;
|
|
}
|
|
|
|
out.write(data, len);
|
|
|
|
out.flush();
|
|
out.close();
|
|
|
|
}
|
|
}
|
|
}
|
|
|
|
MacResManager::MacVers *MacResManager::parseVers(SeekableReadStream *vvers) {
|
|
MacVers *v = new MacVers;
|
|
|
|
v->majorVer = vvers->readByte();
|
|
v->minorVer = vvers->readByte();
|
|
byte devStage = vvers->readByte();
|
|
const char *s;
|
|
switch (devStage) {
|
|
case 0x20: s = "Prealpha"; break;
|
|
case 0x40: s = "Alpha"; break;
|
|
case 0x60: s = "Beta"; break;
|
|
case 0x80: s = "Final"; break;
|
|
default: s = "";
|
|
}
|
|
v->devStr = s;
|
|
|
|
v->preReleaseVer = vvers->readByte();
|
|
v->region = vvers->readUint16BE();
|
|
v->str = vvers->readPascalString();
|
|
v->msg = vvers->readPascalString();
|
|
|
|
return v;
|
|
}
|
|
|
|
} // End of namespace Common
|