mirror of
https://github.com/libretro/scummvm.git
synced 2024-12-30 14:14:43 +00:00
756 lines
20 KiB
C++
756 lines
20 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 "common/config-manager.h"
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#include "common/endian.h"
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#include "common/file.h"
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#include "common/fs.h"
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#include "common/func.h"
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#include "gui/message.h"
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#include "kyra/resource.h"
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namespace Kyra {
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Resource::Resource(KyraEngine_v1 *vm) : _loaders(), _map(), _vm(vm) {
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initializeLoaders();
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}
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Resource::~Resource() {
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_map.clear();
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_loaders.clear();
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}
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bool Resource::reset() {
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unloadAllPakFiles();
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FilesystemNode dir(ConfMan.get("path"));
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if (!dir.exists() || !dir.isDirectory())
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error("invalid game path '%s'", dir.getPath().c_str());
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if (!loadPakFile(StaticResource::staticDataFilename()) || !StaticResource::checkKyraDat()) {
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Common::String errorMessage = "You're missing the '" + StaticResource::staticDataFilename() + "' file or it got corrupted, (re)get it from the ScummVM website";
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::GUI::MessageDialog errorMsg(errorMessage);
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errorMsg.runModal();
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error(errorMessage.c_str());
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}
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if (_vm->game() == GI_KYRA1) {
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// We only need kyra.dat for the demo.
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if (_vm->gameFlags().isDemo)
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return true;
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// only VRM file we need in the *whole* game for kyra1
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if (_vm->gameFlags().isTalkie)
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loadPakFile("CHAPTER1.VRM");
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} else if (_vm->game() == GI_KYRA2) {
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// mouse pointer, fonts, etc. required for initializing
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if (_vm->gameFlags().isDemo && !_vm->gameFlags().isTalkie) {
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loadPakFile("GENERAL.PAK");
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} else {
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loadPakFile("INTROGEN.PAK");
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loadPakFile("OTHER.PAK");
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}
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return true;
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} else if (_vm->game() == GI_KYRA3) {
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loadPakFile("WESTWOOD.001");
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loadFileList("FILEDATA.FDT");
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return true;
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}
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FSList fslist;
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if (!dir.getChildren(fslist, FilesystemNode::kListFilesOnly))
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error("can't list files inside game path '%s'", dir.getPath().c_str());
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if (_vm->game() == GI_KYRA1 && _vm->gameFlags().isTalkie) {
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static const char *list[] = {
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"ADL.PAK", "CHAPTER1.VRM", "COL.PAK", "FINALE.PAK", "INTRO1.PAK", "INTRO2.PAK",
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"INTRO3.PAK", "INTRO4.PAK", "MISC.PAK", "SND.PAK", "STARTUP.PAK", "XMI.PAK",
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"CAVE.APK", "DRAGON1.APK", "DRAGON2.APK", "LAGOON.APK"
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};
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Common::for_each(list, list + ARRAYSIZE(list), Common::bind1st(Common::mem_fun(&Resource::loadPakFile), this));
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for (int i = 0; i < ARRAYSIZE(list); ++i) {
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ResFileMap::iterator iterator = _map.find(list[i]);
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if (iterator != _map.end())
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iterator->_value.prot = true;
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}
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} else {
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for (FSList::const_iterator file = fslist.begin(); file != fslist.end(); ++file) {
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Common::String filename = file->getName();
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filename.toUppercase();
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// No real PAK file!
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if (filename == "TWMUSIC.PAK")
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continue;
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if (filename == ((_vm->gameFlags().lang == Common::EN_ANY) ? "JMC.PAK" : "EMC.PAK"))
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continue;
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if (filename.hasSuffix(".PAK") || filename.hasSuffix(".APK")) {
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if (!loadPakFile(file->getName()))
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error("couldn't open pakfile '%s'", file->getName().c_str());
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}
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}
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}
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return true;
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}
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bool Resource::loadPakFile(const Common::String &filename) {
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if (!isAccessable(filename))
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return false;
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ResFileMap::iterator iter = _map.find(filename);
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if (iter == _map.end())
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return false;
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if (iter->_value.preload) {
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iter->_value.mounted = true;
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return true;
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}
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const ResArchiveLoader *loader = getLoader(iter->_value.type);
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if (!loader) {
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error("no archive loader for file '%s' found which is of type %d", filename.c_str(), iter->_value.type);
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return false;
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}
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Common::SeekableReadStream *stream = getFileStream(filename);
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if (!stream) {
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error("archive file '%s' not found", filename.c_str());
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return false;
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}
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iter->_value.mounted = true;
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iter->_value.preload = true;
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ResArchiveLoader::FileList files;
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loader->loadFile(filename, *stream, files);
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delete stream;
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stream = 0;
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for (ResArchiveLoader::FileList::iterator i = files.begin(); i != files.end(); ++i) {
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iter = _map.find(i->filename);
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if (iter == _map.end()) {
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// A new file entry, so we just insert it into the file map.
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_map[i->filename] = i->entry;
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} else if (!iter->_value.parent.empty()) {
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if (!iter->_value.parent.equalsIgnoreCase(filename)) {
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ResFileMap::iterator oldParent = _map.find(iter->_value.parent);
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if (oldParent != _map.end()) {
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// Protected files and their embedded file entries do not get overwritten.
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if (!oldParent->_value.prot) {
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// If the old parent is not protected we mark it as not preload anymore,
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// since now no longer all of its embedded files are in the filemap.
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oldParent->_value.preload = false;
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_map[i->filename] = i->entry;
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}
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} else {
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// Old parent not found? That's strange... But we just overwrite the old
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// entry.
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_map[i->filename] = i->entry;
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}
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} else {
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// The old parent has the same filenames as the new archive, we are sure and overwrite the
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// old file entry, could be afterall that the preload flag of the new archive was
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// just unflagged.
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_map[i->filename] = i->entry;
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}
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}
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// 'else' case would mean here overwriting an existing file entry in the map without parent.
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// We don't support that though, so one can overwrite files from archives by putting
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// them in the gamepath.
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}
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detectFileTypes();
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return true;
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}
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bool Resource::loadFileList(const Common::String &filedata) {
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Common::File f;
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if (!f.open(filedata))
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return false;
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uint32 filenameOffset = 0;
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while ((filenameOffset = f.readUint32LE()) != 0) {
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uint32 offset = f.pos();
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f.seek(filenameOffset, SEEK_SET);
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uint8 buffer[13];
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f.read(buffer, sizeof(buffer)-1);
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buffer[12] = 0;
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f.seek(offset + 16, SEEK_SET);
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Common::String filename = (char*)buffer;
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filename.toUppercase();
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if (filename.hasSuffix(".PAK")) {
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if (!isAccessable(filename) && _vm->gameFlags().isDemo) {
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// the demo version supplied with Kyra3 does not
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// contain all pak files listed in filedata.fdt
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// so we don't do anything here if they are non
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// existant.
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} else if (!loadPakFile(filename)) {
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error("couldn't load file '%s'", filename.c_str());
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return false;
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}
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}
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}
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return true;
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}
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bool Resource::loadFileList(const char * const *filelist, uint32 numFiles) {
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if (!filelist)
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return false;
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while (numFiles--) {
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if (!loadPakFile(filelist[numFiles])) {
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error("couldn't load file '%s'", filelist[numFiles]);
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return false;
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}
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}
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return true;
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}
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void Resource::unloadPakFile(const Common::String &filename) {
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ResFileMap::iterator iter = _map.find(filename);
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if (iter != _map.end()) {
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if (!iter->_value.prot)
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iter->_value.mounted = false;
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}
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}
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bool Resource::isInPakList(const Common::String &filename) {
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if (!isAccessable(filename))
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return false;
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ResFileMap::iterator iter = _map.find(filename);
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if (iter == _map.end())
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return false;
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return (iter->_value.type != ResFileEntry::kRaw);
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}
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void Resource::unloadAllPakFiles() {
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// remove all entries
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_map.clear();
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}
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uint8 *Resource::fileData(const char *file, uint32 *size) {
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Common::SeekableReadStream *stream = getFileStream(file);
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if (!stream)
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return 0;
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uint32 bufferSize = stream->size();
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uint8 *buffer = new uint8[bufferSize];
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assert(buffer);
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if (size)
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*size = bufferSize;
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stream->read(buffer, bufferSize);
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delete stream;
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return buffer;
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}
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bool Resource::exists(const char *file, bool errorOutOnFail) {
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if (Common::File::exists(file))
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return true;
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else if (isAccessable(file))
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return true;
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else if (errorOutOnFail)
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error("File '%s' can't be found", file);
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return false;
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}
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uint32 Resource::getFileSize(const char *file) {
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if (Common::File::exists(file)) {
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Common::File f;
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if (f.open(file))
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return f.size();
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} else {
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if (!isAccessable(file))
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return 0;
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ResFileMap::const_iterator iter = _map.find(file);
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if (iter != _map.end())
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return iter->_value.size;
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}
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return 0;
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}
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bool Resource::loadFileToBuf(const char *file, void *buf, uint32 maxSize) {
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Common::SeekableReadStream *stream = getFileStream(file);
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if (!stream)
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return false;
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memset(buf, 0, maxSize);
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stream->read(buf, stream->size());
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delete stream;
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return true;
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}
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Common::SeekableReadStream *Resource::getFileStream(const Common::String &file) {
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if (Common::File::exists(file)) {
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Common::File *stream = new Common::File();
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if (!stream->open(file)) {
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delete stream;
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stream = 0;
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error("Couldn't open file '%s'", file.c_str());
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}
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return stream;
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} else {
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if (!isAccessable(file))
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return 0;
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ResFileMap::const_iterator iter = _map.find(file);
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if (iter == _map.end())
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return 0;
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if (!iter->_value.parent.empty()) {
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Common::SeekableReadStream *parent = getFileStream(iter->_value.parent);
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assert(parent);
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ResFileMap::const_iterator parentIter = _map.find(iter->_value.parent);
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const ResArchiveLoader *loader = getLoader(parentIter->_value.type);
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assert(loader);
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return loader->loadFileFromArchive(file, parent, iter->_value);
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} else {
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error("Couldn't open file '%s'", file.c_str());
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}
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}
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return 0;
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}
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bool Resource::isAccessable(const Common::String &file) {
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checkFile(file);
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ResFileMap::const_iterator iter = _map.find(file);
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while (iter != _map.end()) {
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if (!iter->_value.parent.empty()) {
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iter = _map.find(iter->_value.parent);
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if (iter != _map.end()) {
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// parent can never be a non archive file
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if (iter->_value.type == ResFileEntry::kRaw)
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return false;
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// not mounted parent means not accessable
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else if (!iter->_value.mounted)
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return false;
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}
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} else {
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return true;
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}
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}
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return false;
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}
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void Resource::checkFile(const Common::String &file) {
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if (_map.find(file) == _map.end() && Common::File::exists(file)) {
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Common::File temp;
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if (temp.open(file)) {
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ResFileEntry entry;
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entry.parent = "";
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entry.size = temp.size();
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entry.mounted = file.compareToIgnoreCase(StaticResource::staticDataFilename()) != 0;
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entry.preload = false;
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entry.prot = false;
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entry.type = ResFileEntry::kAutoDetect;
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entry.offset = 0;
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_map[file] = entry;
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temp.close();
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detectFileTypes();
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}
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}
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}
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void Resource::detectFileTypes() {
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for (ResFileMap::iterator i = _map.begin(); i != _map.end(); ++i) {
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if (!isAccessable(i->_key))
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continue;
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if (i->_value.type == ResFileEntry::kAutoDetect) {
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Common::SeekableReadStream *stream = 0;
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for (LoaderIterator l = _loaders.begin(); l != _loaders.end(); ++l) {
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if (!(*l)->checkFilename(i->_key))
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continue;
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if (!stream)
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stream = getFileStream(i->_key);
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if ((*l)->isLoadable(i->_key, *stream)) {
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i->_value.type = (*l)->getType();
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i->_value.mounted = false;
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i->_value.preload = false;
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break;
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}
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}
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delete stream;
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stream = 0;
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if (i->_value.type == ResFileEntry::kAutoDetect)
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i->_value.type = ResFileEntry::kRaw;
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}
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}
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}
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#pragma mark -
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#pragma mark - ResFileLodaer
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#pragma mark -
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class ResLoaderPak : public ResArchiveLoader {
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public:
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bool checkFilename(Common::String filename) const;
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bool isLoadable(const Common::String &filename, Common::SeekableReadStream &stream) const;
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bool loadFile(const Common::String &filename, Common::SeekableReadStream &stream, FileList &files) const;
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Common::SeekableReadStream *loadFileFromArchive(const Common::String &file, Common::SeekableReadStream *archive, const ResFileEntry entry) const;
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ResFileEntry::kType getType() const {
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return ResFileEntry::kPak;
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}
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};
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bool ResLoaderPak::checkFilename(Common::String filename) const {
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filename.toUppercase();
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return (filename.hasSuffix(".PAK") || filename.hasSuffix(".APK") || filename.hasSuffix(".VRM") || filename.hasSuffix(".TLK") || filename.equalsIgnoreCase(StaticResource::staticDataFilename()));
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}
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bool ResLoaderPak::isLoadable(const Common::String &filename, Common::SeekableReadStream &stream) const {
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uint32 filesize = stream.size();
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uint32 offset = 0;
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bool switchEndian = false;
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bool firstFile = true;
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offset = stream.readUint32LE();
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if (offset > filesize) {
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switchEndian = true;
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offset = SWAP_BYTES_32(offset);
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}
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Common::String file = "";
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while (!stream.eos()) {
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// The start offset of a file should never be in the filelist
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if (offset < stream.pos() || offset > filesize)
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return false;
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byte c = 0;
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file = "";
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while (!stream.eos() && (c = stream.readByte()) != 0)
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file += c;
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if (stream.eos())
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return false;
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// Quit now if we encounter an empty string
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if (file.empty()) {
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if (firstFile)
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return false;
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else
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break;
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}
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firstFile = false;
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offset = switchEndian ? stream.readUint32BE() : stream.readUint32LE();
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if (!offset || offset == filesize)
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break;
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}
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return true;
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}
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bool ResLoaderPak::loadFile(const Common::String &filename, Common::SeekableReadStream &stream, FileList &files) const {
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uint32 filesize = stream.size();
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uint32 startoffset = 0, endoffset = 0;
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bool switchEndian = false;
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bool firstFile = true;
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startoffset = stream.readUint32LE();
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if (startoffset > filesize) {
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switchEndian = true;
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startoffset = SWAP_BYTES_32(startoffset);
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}
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Common::String file = "";
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while (!stream.eos()) {
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// The start offset of a file should never be in the filelist
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if (startoffset < stream.pos() || startoffset > filesize) {
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warning("PAK file '%s' is corrupted", filename.c_str());
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return false;
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}
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file = "";
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byte c = 0;
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while (!stream.eos() && (c = stream.readByte()) != 0)
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file += c;
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if (stream.eos()) {
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warning("PAK file '%s' is corrupted", filename.c_str());
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return false;
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}
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// Quit now if we encounter an empty string
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if (file.empty()) {
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if (firstFile) {
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warning("PAK file '%s' is corrupted", filename.c_str());
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return false;
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} else {
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break;
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}
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}
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firstFile = false;
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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
|
|
|
|
|