mirror of
https://github.com/libretro/scummvm.git
synced 2025-01-24 03:24:50 +00:00
119 lines
3.3 KiB
C++
119 lines
3.3 KiB
C++
/* 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.
|
|
*
|
|
*/
|
|
|
|
#include "common/debug.h"
|
|
#include "common/file.h"
|
|
#include "common/substream.h"
|
|
|
|
#include "petka/petka.h"
|
|
#include "petka/file_mgr.h"
|
|
|
|
namespace Petka {
|
|
|
|
FileMgr::~FileMgr() {
|
|
debug("FileMgr::dtor");
|
|
closeAll();
|
|
}
|
|
|
|
bool FileMgr::openStore(const Common::String &name) {
|
|
Common::ScopedPtr<Common::File> file(new Common::File());
|
|
if (name.empty() || !file->open(name) || file->readUint32BE() != MKTAG('S', 't', 'O', 'R')) {
|
|
return false;
|
|
}
|
|
|
|
const uint32 tableOffset = file->readUint32LE();
|
|
if (!file->seek(tableOffset)) {
|
|
return false;
|
|
}
|
|
|
|
_stores.push_back(Store());
|
|
Store &store = _stores.back();
|
|
store.descriptions.resize(file->readUint32LE());
|
|
|
|
for (uint i = 0; i < store.descriptions.size(); ++i) {
|
|
file->skip(4);
|
|
store.descriptions[i].offset = file->readUint32LE();
|
|
store.descriptions[i].size = file->readUint32LE();
|
|
}
|
|
|
|
for (uint i = 0; i < store.descriptions.size(); ++i) {
|
|
char ch;
|
|
while ((ch = file->readByte()) != 0) {
|
|
store.descriptions[i].name += ch;
|
|
}
|
|
}
|
|
store.file = file.release();
|
|
|
|
debug("FileMgr: opened store %s (files count: %d)", name.c_str(), store.descriptions.size());
|
|
|
|
return true;
|
|
}
|
|
|
|
void FileMgr::closeStore(const Common::String &name) {
|
|
for (uint i = 0; i < _stores.size(); ++i) {
|
|
if (_stores[i].file->getName() == name) {
|
|
delete _stores[i].file;
|
|
_stores.remove_at(i);
|
|
return;
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
void FileMgr::closeAll() {
|
|
debug("FileMgr::closeAll");
|
|
for (uint i = 0; i < _stores.size(); ++i) {
|
|
delete _stores[i].file;
|
|
}
|
|
_stores.clear();
|
|
}
|
|
|
|
static Common::String formPath(Common::String name) {
|
|
for (uint i = 0; i < name.size(); ++i) {
|
|
if (name[i] == '\\') {
|
|
name.setChar('/', i);
|
|
}
|
|
}
|
|
return name;
|
|
}
|
|
|
|
Common::SeekableReadStream *FileMgr::getFileStream(const Common::String &name) {
|
|
Common::ScopedPtr<Common::File> file(new Common::File());
|
|
if (file->open(formPath(name))) {
|
|
debugC(kPetkaDebugResources, "FileMgr: %s is opened from game directory", name.c_str());
|
|
return file.release();
|
|
}
|
|
for (uint i = 0; i < _stores.size(); ++i) {
|
|
for (uint j = 0; j < _stores[i].descriptions.size(); ++j) {
|
|
const Description &desc = _stores[i].descriptions[j];
|
|
if (desc.name.compareToIgnoreCase(name) == 0) {
|
|
return new Common::SafeSeekableSubReadStream(_stores[i].file, desc.offset, desc.offset + desc.size);
|
|
}
|
|
|
|
}
|
|
}
|
|
debugC(kPetkaDebugResources, "FileMgr: %s not found", name.c_str());
|
|
return nullptr;
|
|
}
|
|
|
|
} // End of namespace Petka
|