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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/stdafx.h"
#include "common/config-manager.h"
#include "common/endian.h"
#include "common/file.h"
#include "common/fs.h"
#include "common/hash-str.h"
#include "common/func.h"
#include "common/algorithm.h"
#include "gui/message.h"
#include "kyra/resource.h"
#include "kyra/script.h"
#include "kyra/wsamovie.h"
#include "kyra/screen.h"
namespace Kyra {
namespace {
struct ResFilenameEqual : public Common::UnaryFunction<ResourceFile*, bool> {
uint _filename;
ResFilenameEqual(uint file) : _filename(file) {}
bool operator()(const ResourceFile *f) {
return f->filename() == _filename;
}
};
} // end of anonymous namespace
Resource::Resource(KyraEngine *vm) {
_vm = vm;
if (_vm->game() == GI_KYRA1) {
// we're loading KYRA.DAT here too (but just for Kyrandia 1)
if (!loadPakFile("KYRA.DAT") || !StaticResource::checkKyraDat()) {
GUI::MessageDialog errorMsg("You're missing the 'KYRA.DAT' file or it got corrupted, (re)get it from the ScummVM website");
errorMsg.runModal();
error("You're missing the 'KYRA.DAT' file or it got corrupted, (re)get it from the ScummVM website");
}
// We only need kyra.dat for the demo.
if (_vm->gameFlags().isDemo)
return;
// only VRM file we need in the *whole* game for kyra1
if (_vm->gameFlags().isTalkie)
loadPakFile("CHAPTER1.VRM");
} else if (_vm->game() == GI_KYRA3) {
// load the installation package file for kyra3
INSFile *insFile = new INSFile("WESTWOOD.001");
assert(insFile);
if (!insFile->isValid())
error("'WESTWOOD.001' file not found or corrupt");
_pakfiles.push_back(insFile);
}
FSList fslist;
FilesystemNode dir(ConfMan.get("path"));
if (!dir.getChildren(fslist, FilesystemNode::kListFilesOnly))
error("invalid 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));
Common::for_each(_pakfiles.begin(), _pakfiles.end(), Common::bind2nd(Common::mem_fun(&ResourceFile::protect), 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.hasSuffix("PAK") || filename.hasSuffix("APK")) {
if (!loadPakFile(file->getName()))
error("couldn't open pakfile '%s'", file->getName().c_str());
}
}
if (_vm->gameFlags().platform == Common::kPlatformFMTowns || _vm->gameFlags().platform == Common::kPlatformPC98) {
uint unloadHash = (_vm->gameFlags().lang == Common::EN_ANY) ? Common::hashit_lower("JMC.PAK") : Common::hashit_lower("EMC.PAK");
ResIterator file = Common::find_if(_pakfiles.begin(), _pakfiles.end(), ResFilenameEqual(unloadHash));
if (file != _pakfiles.end()) {
delete *file;
_pakfiles.erase(file);
}
}
}
}
Resource::~Resource() {
for (ResIterator start = _pakfiles.begin() ;start != _pakfiles.end(); ++start) {
delete *start;
*start = 0;
}
}
bool Resource::loadPakFile(const Common::String &filename) {
ResIterator listFile = Common::find_if(_pakfiles.begin(), _pakfiles.end(), ResFilenameEqual(Common::hashit_lower(filename)));
if (listFile != _pakfiles.end()) {
(*listFile)->open();
return true;
}
const bool isKyraDat = filename.equalsIgnoreCase("KYRA.DAT");
uint32 size = 0;
Common::File handle;
if (!getFileHandle(filename.c_str(), &size, handle)) {
(!isKyraDat ? error : warning)("couldn't load file: '%s'", filename.c_str());
return false;
}
PAKFile *file = new PAKFile(filename.c_str(), handle.name(), handle, (_vm->gameFlags().platform == Common::kPlatformAmiga) && !isKyraDat);
handle.close();
if (!file)
return false;
if (!file->isValid()) {
error("'%s' is no valid pak file", filename.c_str());
delete file;
return false;
}
_pakfiles.push_back(file);
return true;
}
void Resource::unloadPakFile(const Common::String &filename) {
ResIterator pak = Common::find_if(_pakfiles.begin(), _pakfiles.end(), ResFilenameEqual(Common::hashit_lower(filename)));
if (pak != _pakfiles.end())
(*pak)->close();
}
bool Resource::isInPakList(const Common::String &filename) const {
return (Common::find_if(_pakfiles.begin(), _pakfiles.end(), ResFilenameEqual(Common::hashit_lower(filename))) != _pakfiles.end());
}
uint8 *Resource::fileData(const char *file, uint32 *size) const {
Common::File fileHandle;
if (size)
*size = 0;
// test to open it in the main dir
if (fileHandle.open(file)) {
uint32 fileSize = fileHandle.size();
uint8 *buffer = new uint8[fileSize];
assert(buffer);
fileHandle.read(buffer, fileSize);
if (size)
*size = fileSize;
return buffer;
} else {
// opens the file inside a PAK File
uint fileHash = Common::hashit_lower(file);
for (ConstResIterator cur = _pakfiles.begin(); cur != _pakfiles.end(); ++cur) {
if (!(*cur)->isOpen())
continue;
uint8* result = (*cur)->getFile(fileHash);
if (result) {
uint32 fileSize = (*cur)->getFileSize(fileHash);
if (!fileSize)
continue;
if (size)
*size = fileSize;
return result;
}
}
}
return 0;
}
bool Resource::getFileHandle(const char *file, uint32 *size, Common::File &filehandle) {
filehandle.close();
if (filehandle.open(file)) {
if (size)
*size = filehandle.size();
return true;
}
uint fileHash = Common::hashit_lower(file);
for (ResIterator start = _pakfiles.begin() ;start != _pakfiles.end(); ++start) {
if (!(*start)->isOpen())
continue;
if ((*start)->getFileHandle(fileHash, filehandle)) {
uint32 tSize = (*start)->getFileSize(fileHash);
if (!tSize)
continue;
if (size)
*size = tSize;
return true;
}
}
return false;
}
uint32 Resource::getFileSize(const char *file) const {
Common::File temp;
if (temp.open(file))
return temp.size();
uint fileHash = Common::hashit_lower(file);
for (ConstResIterator start = _pakfiles.begin() ;start != _pakfiles.end(); ++start) {
if (!(*start)->isOpen())
continue;
uint32 size = (*start)->getFileSize(fileHash);
if (size)
return size;
}
return 0;
}
bool Resource::loadFileToBuf(const char *file, void *buf, uint32 maxSize) {
Common::File tempHandle;
uint32 size = 0;
if (!getFileHandle(file, &size, tempHandle))
return false;
if (size > maxSize)
return false;
memset(buf, 0, maxSize);
tempHandle.read(buf, size);
return true;
}
///////////////////////////////////////////
// Pak file manager
PAKFile::PAKFile(const char *file, const char *physfile, Common::File &pakfile, bool isAmiga) : ResourceFile() {
_open = false;
if (!pakfile.isOpen()) {
debug(3, "couldn't open pakfile '%s'\n", file);
return;
}
uint32 off = pakfile.pos();
uint32 filesize = pakfile.size();
uint32 pos = 0, startoffset = 0, endoffset = 0;
if (isAmiga)
startoffset = pakfile.readUint32BE();
else
startoffset = pakfile.readUint32LE();
if (startoffset > filesize) {
warning("PAK file '%s' is corrupted", file);
return;
}
pos += 4;
while (pos < filesize) {
PakChunk chunk;
uint8 buffer[64];
uint32 nameLength;
// Move to the position of the next file entry
pakfile.seek(pos);
// Read in the header
if (pakfile.read(&buffer, 64) < 5) {
warning("PAK file '%s' is corrupted", file);
return;
}
// Quit now if we encounter an empty string
if (!(*((const char*)buffer)))
break;
chunk._name = Common::hashit_lower((const char*)buffer);
nameLength = strlen((const char*)buffer) + 1;
if (nameLength > 60) {
warning("PAK file '%s' is corrupted", file);
return;
}
if (isAmiga)
endoffset = READ_BE_UINT32(buffer + nameLength);
else
endoffset = READ_LE_UINT32(buffer + nameLength);
if (!endoffset) {
endoffset = filesize;
} else if (endoffset > filesize || startoffset > endoffset) {
warning("PAK file '%s' is corrupted", file);
return;
}
if (startoffset != endoffset) {
chunk._start = startoffset;
chunk._size = endoffset - startoffset;
_files.push_back(chunk);
}
if (endoffset == filesize)
break;
startoffset = endoffset;
pos += nameLength + 4;
}
_open = true;
_filename = Common::hashit_lower(file);
_physfile = physfile;
_physOffset = off;
}
PAKFile::~PAKFile() {
_physfile.clear();
_open = false;
_files.clear();
}
uint8 *PAKFile::getFile(uint hash) const {
ConstPakIterator file = Common::find_if(_files.begin(), _files.end(), Common::bind2nd(Common::EqualTo<uint>(), hash));
if (file == _files.end())
return 0;
Common::File pakfile;
if (!openFile(pakfile))
return false;
pakfile.seek(file->_start, SEEK_CUR);
uint8 *buffer = new uint8[file->_size];
assert(buffer);
pakfile.read(buffer, file->_size);
return buffer;
}
bool PAKFile::getFileHandle(uint hash, Common::File &filehandle) const {
filehandle.close();
ConstPakIterator file = Common::find_if(_files.begin(), _files.end(), Common::bind2nd(Common::EqualTo<uint>(), hash));
if (file == _files.end())
return false;
if (!openFile(filehandle))
return false;
filehandle.seek(file->_start, SEEK_CUR);
return true;
}
uint32 PAKFile::getFileSize(uint hash) const {
ConstPakIterator file = Common::find_if(_files.begin(), _files.end(), Common::bind2nd(Common::EqualTo<uint>(), hash));
return (file != _files.end()) ? file->_size : 0;
}
bool PAKFile::openFile(Common::File &filehandle) const {
filehandle.close();
if (!filehandle.open(_physfile))
return false;
filehandle.seek(_physOffset, SEEK_CUR);
return true;
}
///////////////////////////////////////////
// Ins file manager
INSFile::INSFile(const char *file) : ResourceFile(), _files() {
Common::File pakfile;
_open = false;
if (!pakfile.open(file)) {
debug(3, "couldn't open insfile '%s'\n", file);
return;
}
// thanks to eriktorbjorn for this code (a bit modified though)
// skip first three bytes
pakfile.seek(3);
// first file is the index table
uint32 filesize = pakfile.readUint32LE();
Common::String temp = "";
for (uint i = 0; i < filesize; ++i) {
byte c = pakfile.readByte();
if (c == '\\') {
temp = "";
} else if (c == 0x0D) {
// line endings are CRLF
c = pakfile.readByte();
assert(c == 0x0A);
++i;
FileEntry newEntry;
newEntry._name = Common::hashit_lower(temp.c_str());
newEntry._start = 0;
newEntry._size = 0;
_files.push_back(newEntry);
temp = "";
} else {
temp += (char)c;
}
}
pakfile.seek(3);
for (FileIterator start = _files.begin(); start != _files.end(); ++start) {
filesize = pakfile.readUint32LE();
start->_size = filesize;
start->_start = pakfile.pos();
pakfile.seek(filesize, SEEK_CUR);
}
_filename = Common::hashit_lower(file);
_physfile = file;
_open = true;
}
INSFile::~INSFile() {
_open = false;
_files.clear();
}
uint8 *INSFile::getFile(uint hash) const {
ConstFileIterator file = Common::find_if(_files.begin(), _files.end(), Common::bind2nd(Common::EqualTo<uint>(), hash));
if (file == _files.end())
return 0;
Common::File pakfile;
if (!pakfile.open(_physfile))
return false;
pakfile.seek(file->_start);
uint8 *buffer = new uint8[file->_size];
assert(buffer);
pakfile.read(buffer, file->_size);
return buffer;
}
bool INSFile::getFileHandle(uint hash, Common::File &filehandle) const {
ConstFileIterator file = Common::find_if(_files.begin(), _files.end(), Common::bind2nd(Common::EqualTo<uint>(), hash));
if (file == _files.end())
return false;
if (!filehandle.open(_physfile))
return false;
filehandle.seek(file->_start, SEEK_CUR);
return true;
}
uint32 INSFile::getFileSize(uint hash) const {
ConstFileIterator file = Common::find_if(_files.begin(), _files.end(), Common::bind2nd(Common::EqualTo<uint>(), hash));
return (file != _files.end()) ? file->_size : 0;
}
} // end of namespace Kyra
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