mirror of
https://github.com/libretro/scummvm.git
synced 2024-12-12 20:17:49 +00:00
655ce26b3f
svn-id: r34514
260 lines
5.8 KiB
C++
260 lines
5.8 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/archive.h"
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#include "common/file.h"
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#include "common/fs.h"
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#include "common/util.h"
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#include "common/system.h"
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namespace Common {
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static Common::SearchSet *s_searchSet = 0;
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void File::addDefaultDirectory(const String &directory) {
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FilesystemNode dir(directory);
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addDefaultDirectoryRecursive(dir, 1);
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}
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void File::addDefaultDirectoryRecursive(const String &directory, int level) {
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FilesystemNode dir(directory);
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addDefaultDirectoryRecursive(dir, level);
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}
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void File::addDefaultDirectory(const FilesystemNode &directory) {
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addDefaultDirectoryRecursive(directory, 1);
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}
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void File::addDefaultDirectoryRecursive(const FilesystemNode &dir, int level) {
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if (level <= 0 || !dir.exists() || !dir.isDirectory())
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return;
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if (!s_searchSet) {
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s_searchSet = new Common::SearchSet();
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g_system->addSysArchivesToSearchSet(*s_searchSet);
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}
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Common::ArchivePtr dataArchive(new Common::FSDirectory(dir, level));
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s_searchSet->add(dir.getPath(), dataArchive, 1);
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}
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void File::resetDefaultDirectories() {
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delete s_searchSet;
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s_searchSet = 0;
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}
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File::File()
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: _handle(0) {
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}
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File::~File() {
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close();
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}
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bool File::open(const String &filename) {
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assert(!filename.empty());
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assert(!_handle);
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_name.clear();
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clearIOFailed();
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if (s_searchSet && s_searchSet->hasFile(filename)) {
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debug(3, "Opening hashed: %s", filename.c_str());
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_handle = s_searchSet->openFile(filename);
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} else if (s_searchSet && s_searchSet->hasFile(filename + ".")) {
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// WORKAROUND: Bug #1458388: "SIMON1: Game Detection fails"
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// sometimes instead of "GAMEPC" we get "GAMEPC." (note trailing dot)
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debug(3, "Opening hashed: %s.", filename.c_str());
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_handle = s_searchSet->openFile(filename);
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} else {
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// Last resort: try the current directory
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FilesystemNode file(filename);
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if (file.exists() && !file.isDirectory())
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_handle = file.openForReading();
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}
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if (_handle == NULL)
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debug(2, "File %s not opened", filename.c_str());
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else
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_name = filename;
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return _handle != NULL;
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}
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bool File::open(const FilesystemNode &node) {
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if (!node.exists()) {
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warning("File::open: Trying to open a FilesystemNode which does not exist");
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return false;
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} else if (node.isDirectory()) {
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warning("File::open: Trying to open a FilesystemNode which is a directory");
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return false;
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}
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String filename(node.getName());
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if (_handle) {
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error("File::open: This file object already is opened (%s), won't open '%s'", _name.c_str(), filename.c_str());
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}
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clearIOFailed();
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_name.clear();
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_handle = node.openForReading();
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if (_handle == NULL)
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debug(2, "File %s not found", filename.c_str());
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else
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_name = filename;
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return _handle != NULL;
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}
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bool File::exists(const String &filename) {
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if (s_searchSet && s_searchSet->hasFile(filename)) {
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return true;
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} else if (s_searchSet && s_searchSet->hasFile(filename + ".")) {
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// WORKAROUND: Bug #1458388: "SIMON1: Game Detection fails"
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// sometimes instead of "GAMEPC" we get "GAMEPC." (note trailing dot)
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return true;
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} else {
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// Last resort: try the current directory
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FilesystemNode file(filename);
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if (file.exists() && !file.isDirectory())
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return true;
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}
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return false;
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}
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void File::close() {
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delete _handle;
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_handle = NULL;
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}
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bool File::isOpen() const {
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return _handle != NULL;
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}
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bool File::ioFailed() const {
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// TODO/FIXME: Just use ferror() here?
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return !_handle || _handle->ioFailed();
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}
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void File::clearIOFailed() {
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if (_handle)
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_handle->clearIOFailed();
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}
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bool File::eos() const {
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assert(_handle);
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return _handle->eos();
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}
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int32 File::pos() const {
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assert(_handle);
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return _handle->pos();
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}
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int32 File::size() const {
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assert(_handle);
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return _handle->size();
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}
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bool File::seek(int32 offs, int whence) {
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assert(_handle);
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return _handle->seek(offs, whence);
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}
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uint32 File::read(void *ptr, uint32 len) {
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assert(_handle);
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return _handle->read(ptr, len);
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}
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DumpFile::DumpFile() : _handle(0) {
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}
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DumpFile::~DumpFile() {
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close();
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}
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bool DumpFile::open(const String &filename) {
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assert(!filename.empty());
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assert(!_handle);
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FilesystemNode node(filename);
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return open(node);
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}
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bool DumpFile::open(const FilesystemNode &node) {
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assert(!_handle);
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if (node.isDirectory()) {
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warning("File::open: Trying to open a FilesystemNode which is a directory");
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return false;
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}
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_handle = node.openForWriting();
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if (_handle == NULL)
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debug(2, "File %s not found", node.getName().c_str());
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return _handle != NULL;
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}
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void DumpFile::close() {
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delete _handle;
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_handle = NULL;
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}
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bool DumpFile::isOpen() const {
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return _handle != NULL;
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}
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bool DumpFile::ioFailed() const {
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assert(_handle);
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return _handle->ioFailed();
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}
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void DumpFile::clearIOFailed() {
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assert(_handle);
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_handle->clearIOFailed();
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}
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uint32 DumpFile::write(const void *ptr, uint32 len) {
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assert(_handle);
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return _handle->write(ptr, len);
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}
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bool DumpFile::flush() {
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assert(_handle);
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return _handle->flush();
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}
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} // End of namespace Common
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