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|
/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* 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/config-manager.h"
#include "common/endian.h"
#include "common/file.h"
#include "common/fs.h"
#include "common/func.h"
#include "gui/message.h"
#include "kyra/resource.h"
namespace Kyra {
Resource::Resource(KyraEngine_v1 *vm) : _loaders(), _map(), _vm(vm) {
initializeLoaders();
}
Resource::~Resource() {
_map.clear();
_loaders.clear();
}
bool Resource::reset() {
unloadAllPakFiles();
FilesystemNode dir(ConfMan.get("path"));
if (!dir.exists() || !dir.isDirectory())
error("invalid game path '%s'", dir.getPath().c_str());
if (_vm->game() != GI_KYRA3) {
if (!loadPakFile(StaticResource::staticDataFilename()) || !StaticResource::checkKyraDat()) {
Common::String errorMessage = "You're missing the '" + StaticResource::staticDataFilename() + "' file or it got corrupted, (re)get it from the ScummVM website";
::GUI::MessageDialog errorMsg(errorMessage);
errorMsg.runModal();
error(errorMessage.c_str());
}
}
if (_vm->game() == GI_KYRA1) {
// We only need kyra.dat for the demo.
if (_vm->gameFlags().isDemo)
return true;
// only VRM file we need in the *whole* game for kyra1
if (_vm->gameFlags().isTalkie)
loadPakFile("CHAPTER1.VRM");
} else if (_vm->game() == GI_KYRA2) {
// mouse pointer, fonts, etc. required for initializing
if (_vm->gameFlags().isDemo && !_vm->gameFlags().isTalkie) {
loadPakFile("GENERAL.PAK");
} else {
loadPakFile("INTROGEN.PAK");
loadPakFile("OTHER.PAK");
}
return true;
} else if (_vm->game() == GI_KYRA3) {
loadPakFile("WESTWOOD.001");
loadFileList("FILEDATA.FDT");
return true;
}
FSList fslist;
if (!dir.getChildren(fslist, FilesystemNode::kListFilesOnly))
error("can't list files inside game path '%s'", dir.getPath().c_str());
if (_vm->game() == GI_KYRA1 && _vm->gameFlags().isTalkie) {
static const char *list[] = {
"ADL.PAK", "CHAPTER1.VRM", "COL.PAK", "FINALE.PAK", "INTRO1.PAK", "INTRO2.PAK",
"INTRO3.PAK", "INTRO4.PAK", "MISC.PAK", "SND.PAK", "STARTUP.PAK", "XMI.PAK",
"CAVE.APK", "DRAGON1.APK", "DRAGON2.APK", "LAGOON.APK"
};
Common::for_each(list, list + ARRAYSIZE(list), Common::bind1st(Common::mem_fun(&Resource::loadPakFile), this));
for (int i = 0; i < ARRAYSIZE(list); ++i) {
ResFileMap::iterator iterator = _map.find(list[i]);
if (iterator != _map.end())
iterator->_value.prot = true;
}
} else {
for (FSList::const_iterator file = fslist.begin(); file != fslist.end(); ++file) {
Common::String filename = file->getName();
filename.toUppercase();
// No real PAK file!
if (filename == "TWMUSIC.PAK")
continue;
if (filename == ((_vm->gameFlags().lang == Common::EN_ANY) ? "JMC.PAK" : "EMC.PAK"))
continue;
if (filename.hasSuffix(".PAK") || filename.hasSuffix(".APK")) {
if (!loadPakFile(file->getName()))
error("couldn't open pakfile '%s'", file->getName().c_str());
}
}
}
return true;
}
bool Resource::loadPakFile(const Common::String &filename) {
if (!isAccessable(filename))
return false;
ResFileMap::iterator iter = _map.find(filename);
if (iter == _map.end())
return false;
if (iter->_value.preload) {
iter->_value.mounted = true;
return true;
}
const ResArchiveLoader *loader = getLoader(iter->_value.type);
if (!loader) {
error("no archive loader for file '%s' found which is of type %d", filename.c_str(), iter->_value.type);
return false;
}
Common::SeekableReadStream *stream = getFileStream(filename);
if (!stream) {
error("archive file '%s' not found", filename.c_str());
return false;
}
iter->_value.mounted = true;
iter->_value.preload = true;
ResArchiveLoader::FileList files;
loader->loadFile(filename, *stream, files);
delete stream;
stream = 0;
for (ResArchiveLoader::FileList::iterator i = files.begin(); i != files.end(); ++i) {
iter = _map.find(i->filename);
if (iter == _map.end()) {
// A new file entry, so we just insert it into the file map.
_map[i->filename] = i->entry;
} else if (!iter->_value.parent.empty()) {
if (!iter->_value.parent.equalsIgnoreCase(filename)) {
ResFileMap::iterator oldParent = _map.find(iter->_value.parent);
if (oldParent != _map.end()) {
// Protected files and their embedded file entries do not get overwritten.
if (!oldParent->_value.prot) {
// If the old parent is not protected we mark it as not preload anymore,
// since now no longer all of its embedded files are in the filemap.
oldParent->_value.preload = false;
_map[i->filename] = i->entry;
}
} else {
// Old parent not found? That's strange... But we just overwrite the old
// entry.
_map[i->filename] = i->entry;
}
} else {
// The old parent has the same filenames as the new archive, we are sure and overwrite the
// old file entry, could be afterall that the preload flag of the new archive was
// just unflagged.
_map[i->filename] = i->entry;
}
}
// 'else' case would mean here overwriting an existing file entry in the map without parent.
// We don't support that though, so one can overwrite files from archives by putting
// them in the gamepath.
}
detectFileTypes();
return true;
}
bool Resource::loadFileList(const Common::String &filedata) {
Common::File f;
if (!f.open(filedata))
return false;
uint32 filenameOffset = 0;
while ((filenameOffset = f.readUint32LE()) != 0) {
uint32 offset = f.pos();
f.seek(filenameOffset, SEEK_SET);
uint8 buffer[13];
f.read(buffer, sizeof(buffer)-1);
buffer[12] = 0;
f.seek(offset + 16, SEEK_SET);
Common::String filename = (char*)buffer;
filename.toUppercase();
if (filename.hasSuffix(".PAK")) {
if (!isAccessable(filename) && _vm->gameFlags().isDemo) {
// the demo version supplied with Kyra3 does not
// contain all pak files listed in filedata.fdt
// so we don't do anything here if they are non
// existant.
} else if (!loadPakFile(filename)) {
error("couldn't load file '%s'", filename.c_str());
return false;
}
}
}
return true;
}
bool Resource::loadFileList(const char * const *filelist, uint32 numFiles) {
if (!filelist)
return false;
while (numFiles--) {
if (!loadPakFile(filelist[numFiles])) {
error("couldn't load file '%s'", filelist[numFiles]);
return false;
}
}
return true;
}
void Resource::unloadPakFile(const Common::String &filename) {
ResFileMap::iterator iter = _map.find(filename);
if (iter != _map.end()) {
if (!iter->_value.prot)
iter->_value.mounted = false;
}
}
bool Resource::isInPakList(const Common::String &filename) {
if (!isAccessable(filename))
return false;
ResFileMap::iterator iter = _map.find(filename);
if (iter == _map.end())
return false;
return (iter->_value.type != ResFileEntry::kRaw);
}
void Resource::unloadAllPakFiles() {
// remove all entries
_map.clear();
}
uint8 *Resource::fileData(const char *file, uint32 *size) {
Common::SeekableReadStream *stream = getFileStream(file);
if (!stream)
return 0;
uint32 bufferSize = stream->size();
uint8 *buffer = new uint8[bufferSize];
assert(buffer);
if (size)
*size = bufferSize;
stream->read(buffer, bufferSize);
delete stream;
return buffer;
}
bool Resource::exists(const char *file, bool errorOutOnFail) {
if (Common::File::exists(file))
return true;
else if (isAccessable(file))
return true;
else if (errorOutOnFail)
error("File '%s' can't be found", file);
return false;
}
uint32 Resource::getFileSize(const char *file) {
if (Common::File::exists(file)) {
Common::File f;
if (f.open(file))
return f.size();
} else {
if (!isAccessable(file))
return 0;
ResFileMap::const_iterator iter = _map.find(file);
if (iter != _map.end())
return iter->_value.size;
}
return 0;
}
bool Resource::loadFileToBuf(const char *file, void *buf, uint32 maxSize) {
Common::SeekableReadStream *stream = getFileStream(file);
if (!stream)
return false;
memset(buf, 0, maxSize);
stream->read(buf, stream->size());
delete stream;
return true;
}
Common::SeekableReadStream *Resource::getFileStream(const Common::String &file) {
if (Common::File::exists(file)) {
Common::File *stream = new Common::File();
if (!stream->open(file)) {
delete stream;
stream = 0;
error("Couldn't open file '%s'", file.c_str());
}
return stream;
} else {
if (!isAccessable(file))
return 0;
ResFileMap::const_iterator iter = _map.find(file);
if (iter == _map.end())
return 0;
if (!iter->_value.parent.empty()) {
Common::SeekableReadStream *parent = getFileStream(iter->_value.parent);
assert(parent);
ResFileMap::const_iterator parentIter = _map.find(iter->_value.parent);
const ResArchiveLoader *loader = getLoader(parentIter->_value.type);
assert(loader);
return loader->loadFileFromArchive(file, parent, iter->_value);
} else {
error("Couldn't open file '%s'", file.c_str());
}
}
return 0;
}
bool Resource::isAccessable(const Common::String &file) {
checkFile(file);
ResFileMap::const_iterator iter = _map.find(file);
while (iter != _map.end()) {
if (!iter->_value.parent.empty()) {
iter = _map.find(iter->_value.parent);
if (iter != _map.end()) {
// parent can never be a non archive file
if (iter->_value.type == ResFileEntry::kRaw)
return false;
// not mounted parent means not accessable
else if (!iter->_value.mounted)
return false;
}
} else {
return true;
}
}
return false;
}
void Resource::checkFile(const Common::String &file) {
if (_map.find(file) == _map.end() && Common::File::exists(file)) {
Common::File temp;
if (temp.open(file)) {
ResFileEntry entry;
entry.parent = "";
entry.size = temp.size();
entry.mounted = file.compareToIgnoreCase(StaticResource::staticDataFilename()) != 0;
entry.preload = false;
entry.prot = false;
entry.type = ResFileEntry::kAutoDetect;
entry.offset = 0;
_map[file] = entry;
temp.close();
detectFileTypes();
}
}
}
void Resource::detectFileTypes() {
for (ResFileMap::iterator i = _map.begin(); i != _map.end(); ++i) {
if (!isAccessable(i->_key))
continue;
if (i->_value.type == ResFileEntry::kAutoDetect) {
Common::SeekableReadStream *stream = 0;
for (LoaderIterator l = _loaders.begin(); l != _loaders.end(); ++l) {
if (!(*l)->checkFilename(i->_key))
continue;
if (!stream)
stream = getFileStream(i->_key);
if ((*l)->isLoadable(i->_key, *stream)) {
i->_value.type = (*l)->getType();
i->_value.mounted = false;
i->_value.preload = false;
break;
}
}
delete stream;
stream = 0;
if (i->_value.type == ResFileEntry::kAutoDetect)
i->_value.type = ResFileEntry::kRaw;
}
}
}
#pragma mark -
#pragma mark - ResFileLodaer
#pragma mark -
class ResLoaderPak : public ResArchiveLoader {
public:
bool checkFilename(Common::String filename) const;
bool isLoadable(const Common::String &filename, Common::SeekableReadStream &stream) const;
bool loadFile(const Common::String &filename, Common::SeekableReadStream &stream, FileList &files) const;
Common::SeekableReadStream *loadFileFromArchive(const Common::String &file, Common::SeekableReadStream *archive, const ResFileEntry entry) const;
ResFileEntry::kType getType() const {
return ResFileEntry::kPak;
}
};
bool ResLoaderPak::checkFilename(Common::String filename) const {
filename.toUppercase();
return (filename.hasSuffix(".PAK") || filename.hasSuffix(".APK") || filename.hasSuffix(".VRM") || filename.hasSuffix(".TLK") || filename.equalsIgnoreCase(StaticResource::staticDataFilename()));
}
bool ResLoaderPak::isLoadable(const Common::String &filename, Common::SeekableReadStream &stream) const {
uint32 filesize = stream.size();
uint32 offset = 0;
bool switchEndian = false;
bool firstFile = true;
offset = stream.readUint32LE();
if (offset > filesize) {
switchEndian = true;
offset = SWAP_BYTES_32(offset);
}
Common::String file = "";
while (!stream.eos()) {
// The start offset of a file should never be in the filelist
if (offset < stream.pos() || offset > filesize)
return false;
byte c = 0;
file = "";
while (!stream.eos() && (c = stream.readByte()) != 0)
file += c;
if (stream.eos())
return false;
// Quit now if we encounter an empty string
if (file.empty()) {
if (firstFile)
return false;
else
break;
}
firstFile = false;
offset = switchEndian ? stream.readUint32BE() : stream.readUint32LE();
if (!offset || offset == filesize)
break;
}
return true;
}
bool ResLoaderPak::loadFile(const Common::String &filename, Common::SeekableReadStream &stream, FileList &files) const {
uint32 filesize = stream.size();
uint32 startoffset = 0, endoffset = 0;
bool switchEndian = false;
bool firstFile = true;
startoffset = stream.readUint32LE();
if (startoffset > filesize) {
switchEndian = true;
startoffset = SWAP_BYTES_32(startoffset);
}
Common::String file = "";
while (!stream.eos()) {
// The start offset of a file should never be in the filelist
if (startoffset < stream.pos() || startoffset > filesize) {
warning("PAK file '%s' is corrupted", filename.c_str());
return false;
}
file = "";
byte c = 0;
while (!stream.eos() && (c = stream.readByte()) != 0)
file += c;
if (stream.eos()) {
warning("PAK file '%s' is corrupted", filename.c_str());
return false;
}
// Quit now if we encounter an empty string
if (file.empty()) {
if (firstFile) {
warning("PAK file '%s' is corrupted", filename.c_str());
return false;
} else {
break;
}
}
firstFile = false;
endoffset = switchEndian ? stream.readUint32BE() : stream.readUint32LE();
if (!endoffset)
endoffset = filesize;
if (startoffset != endoffset) {
ResFileEntry entry;
entry.size = endoffset - startoffset;
entry.offset = startoffset;
entry.parent = filename;
entry.type = ResFileEntry::kAutoDetect;
entry.mounted = false;
entry.prot = false;
entry.preload = false;
files.push_back(File(file, entry));
}
if (endoffset == filesize)
break;
startoffset = endoffset;
}
return true;
}
Common::SeekableReadStream *ResLoaderPak::loadFileFromArchive(const Common::String &file, Common::SeekableReadStream *archive, const ResFileEntry entry) const {
assert(archive);
archive->seek(entry.offset, SEEK_SET);
Common::SeekableSubReadStream *stream = new Common::SeekableSubReadStream(archive, entry.offset, entry.offset + entry.size, true);
assert(stream);
return stream;
}
class ResLoaderIns : public ResArchiveLoader {
public:
bool checkFilename(Common::String filename) const;
bool isLoadable(const Common::String &filename, Common::SeekableReadStream &stream) const;
bool loadFile(const Common::String &filename, Common::SeekableReadStream &stream, FileList &files) const;
Common::SeekableReadStream *loadFileFromArchive(const Common::String &file, Common::SeekableReadStream *archive, const ResFileEntry entry) const;
ResFileEntry::kType getType() const {
return ResFileEntry::kIns;
}
};
bool ResLoaderIns::checkFilename(Common::String filename) const {
filename.toUppercase();
return (filename.hasSuffix(".001"));
}
bool ResLoaderIns::isLoadable(const Common::String &filename, Common::SeekableReadStream &stream) const {
stream.seek(3);
uint32 size = stream.readUint32LE();
if (size+7 > stream.size())
return false;
stream.seek(size+5, SEEK_SET);
uint8 buffer[2];
stream.read(&buffer, 2);
return (buffer[0] == 0x0D && buffer[1] == 0x0A);
}
bool ResLoaderIns::loadFile(const Common::String &filename, Common::SeekableReadStream &stream, FileList &files) const {
Common::List<Common::String> filenames;
// thanks to eriktorbjorn for this code (a bit modified though)
stream.seek(3, SEEK_SET);
// first file is the index table
uint32 size = stream.readUint32LE();
Common::String temp = "";
for (uint32 i = 0; i < size; ++i) {
byte c = stream.readByte();
if (c == '\\') {
temp = "";
} else if (c == 0x0D) {
// line endings are CRLF
c = stream.readByte();
assert(c == 0x0A);
++i;
filenames.push_back(temp);
} else {
temp += (char)c;
}
}
stream.seek(3, SEEK_SET);
for (Common::List<Common::String>::iterator file = filenames.begin(); file != filenames.end(); ++file) {
ResFileEntry entry;
entry.parent = filename;
entry.type = ResFileEntry::kAutoDetect;
entry.mounted = false;
entry.preload = false;
entry.prot = false;
entry.size = stream.readUint32LE();
entry.offset = stream.pos();
stream.seek(entry.size, SEEK_CUR);
files.push_back(File(*file, entry));
}
return true;
}
Common::SeekableReadStream *ResLoaderIns::loadFileFromArchive(const Common::String &file, Common::SeekableReadStream *archive, const ResFileEntry entry) const {
assert(archive);
archive->seek(entry.offset, SEEK_SET);
Common::SeekableSubReadStream *stream = new Common::SeekableSubReadStream(archive, entry.offset, entry.offset + entry.size, true);
assert(stream);
return stream;
}
class ResLoaderTlk : public ResArchiveLoader {
public:
bool checkFilename(Common::String filename) const;
bool isLoadable(const Common::String &filename, Common::SeekableReadStream &stream) const;
bool loadFile(const Common::String &filename, Common::SeekableReadStream &stream, FileList &files) const;
Common::SeekableReadStream *loadFileFromArchive(const Common::String &file, Common::SeekableReadStream *archive, const ResFileEntry entry) const;
ResFileEntry::kType getType() const {
return ResFileEntry::kTlk;
}
private:
static bool sortTlkFileList(const File &l, const File &r);
static FileList::const_iterator nextFile(const FileList &list, FileList::const_iterator iter);
};
bool ResLoaderTlk::checkFilename(Common::String filename) const {
filename.toUppercase();
return (filename.hasSuffix(".TLK"));
}
bool ResLoaderTlk::isLoadable(const Common::String &filename, Common::SeekableReadStream &stream) const {
uint16 entries = stream.readUint16LE();
uint32 entryTableSize = (entries * 8);
if (entryTableSize + 2 > stream.size())
return false;
uint32 offset = 0;
for (uint i = 0; i < entries; ++i) {
stream.readUint32LE();
offset = stream.readUint32LE();
if (offset > stream.size())
return false;
}
return true;
}
bool ResLoaderTlk::loadFile(const Common::String &filename, Common::SeekableReadStream &stream, FileList &files) const {
uint16 entries = stream.readUint16LE();
for (uint i = 0; i < entries; ++i) {
ResFileEntry entry;
entry.parent = filename;
entry.type = ResFileEntry::kAutoDetect;
entry.mounted = false;
entry.preload = false;
entry.prot = false;
uint32 resFilename = stream.readUint32LE();
uint32 resOffset = stream.readUint32LE();
entry.offset = resOffset+4;
char realFilename[20];
snprintf(realFilename, 20, "%u.AUD", resFilename);
uint32 curOffset = stream.pos();
stream.seek(resOffset, SEEK_SET);
entry.size = stream.readUint32LE();
stream.seek(curOffset, SEEK_SET);
files.push_back(FileList::value_type(realFilename, entry));
}
return true;
}
Common::SeekableReadStream *ResLoaderTlk::loadFileFromArchive(const Common::String &file, Common::SeekableReadStream *archive, const ResFileEntry entry) const {
assert(archive);
archive->seek(entry.offset, SEEK_SET);
Common::SeekableSubReadStream *stream = new Common::SeekableSubReadStream(archive, entry.offset, entry.offset + entry.size, true);
assert(stream);
return stream;
}
#pragma mark -
void Resource::initializeLoaders() {
_loaders.push_back(LoaderList::value_type(new ResLoaderPak()));
_loaders.push_back(LoaderList::value_type(new ResLoaderIns()));
_loaders.push_back(LoaderList::value_type(new ResLoaderTlk()));
}
const ResArchiveLoader *Resource::getLoader(ResFileEntry::kType type) const {
for (CLoaderIterator i = _loaders.begin(); i != _loaders.end(); ++i) {
if ((*i)->getType() == type)
return (*i).get();
}
return 0;
}
} // end of namespace Kyra
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