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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.
*
*/
#ifndef _DS_FS_H
#define _DS_FS_H
#include "common/fs.h"
#include "common/stream.h"
#include "backends/fs/abstract-fs.h"
#include "zipreader.h"
#include "fat/gba_nds_fat.h"
namespace DS {
/**
* Implementation of the ScummVM file system API.
* This class is used when a Flash cart is in use.
*
* Parts of this class are documented in the base interface class, AbstractFSNode.
*/
class DSFileSystemNode : public AbstractFSNode {
protected:
static ZipFile *_zipFile;
Common::String _displayName;
Common::String _path;
bool _isDirectory;
bool _isValid;
public:
/**
* Creates a DSFilesystemNode with the root node as path.
*/
DSFileSystemNode();
/**
* Creates a DSFilesystemNode for a given path.
*
* @param path String with the path the new node should point to.
*/
DSFileSystemNode(const Common::String &path);
/**
* Creates a DSFilesystemNode for a given path.
*
* @param path String with the path the new node should point to.
* @param path true if path is a directory, false otherwise.
*/
DSFileSystemNode(const Common::String& path, bool isDir);
/**
* Copy constructor.
*/
DSFileSystemNode(const DSFileSystemNode *node);
virtual bool exists() const { return true; } //FIXME: this is just a stub
virtual Common::String getDisplayName() const { return _displayName; }
virtual Common::String getName() const { return _displayName; }
virtual Common::String getPath() const { return _path; }
virtual bool isDirectory() const { return _isDirectory; }
virtual bool isReadable() const { return true; } //FIXME: this is just a stub
virtual bool isWritable() const { return true; } //FIXME: this is just a stub
/**
* Returns a copy of this node.
*/
virtual AbstractFSNode *clone() const { return new DSFileSystemNode(this); }
virtual AbstractFSNode *getChild(const Common::String& name) const;
virtual bool getChildren(AbstractFSList &list, ListMode mode, bool hidden) const;
virtual AbstractFSNode *getParent() const;
virtual Common::SeekableReadStream *createReadStream();
virtual Common::WriteStream *createWriteStream();
/**
* Returns the zip file this node points to.
* TODO: check this documentation.
*/
static ZipFile *getZip() { return _zipFile; }
};
/**
* Implementation of the ScummVM file system API.
* This class is used when the GBAMP (GBA Movie Player) is used with a CompactFlash card.
*
* Parts of this class are documented in the base interface class, AbstractFSNode.
*/
class GBAMPFileSystemNode : public AbstractFSNode {
protected:
Common::String _displayName;
Common::String _path;
bool _isDirectory;
bool _isValid;
public:
/**
* Creates a GBAMPFilesystemNode with the root node as path.
*/
GBAMPFileSystemNode();
/**
* Creates a GBAMPFilesystemNode for a given path.
*
* @param path String with the path the new node should point to.
*/
GBAMPFileSystemNode(const Common::String &path);
/**
* Creates a DSFilesystemNode for a given path.
*
* @param path String with the path the new node should point to.
* @param path true if path is a directory, false otherwise.
*/
GBAMPFileSystemNode(const Common::String &path, bool isDirectory);
/**
* Copy constructor.
*/
GBAMPFileSystemNode(const GBAMPFileSystemNode *node);
virtual bool exists() const { return _isValid || _isDirectory; }
virtual Common::String getDisplayName() const { return _displayName; }
virtual Common::String getName() const { return _displayName; }
virtual Common::String getPath() const { return _path; }
virtual bool isDirectory() const { return _isDirectory; }
virtual bool isReadable() const { return true; } //FIXME: this is just a stub
virtual bool isWritable() const { return true; } //FIXME: this is just a stub
/**
* Returns a copy of this node.
*/
virtual AbstractFSNode *clone() const { return new GBAMPFileSystemNode(this); }
virtual AbstractFSNode *getChild(const Common::String& name) const;
virtual bool getChildren(AbstractFSList &list, ListMode mode, bool hidden) const;
virtual AbstractFSNode *getParent() const;
virtual Common::SeekableReadStream *createReadStream();
virtual Common::WriteStream *createWriteStream();
};
struct fileHandle {
int pos;
bool used;
char *data;
int size;
};
class DSFileStream : public Common::SeekableReadStream, public Common::WriteStream, public Common::NonCopyable {
protected:
/** File handle to the actual file. */
void *_handle;
public:
/**
* Given a path, invokes fopen on that path and wrap the result in a
* StdioStream instance.
*/
static DSFileStream *makeFromPath(const Common::String &path, bool writeMode);
DSFileStream(void *handle);
virtual ~DSFileStream();
bool err() const;
void clearErr();
bool eos() const;
virtual uint32 write(const void *dataPtr, uint32 dataSize);
virtual bool flush();
virtual int32 pos() const;
virtual int32 size() const;
bool seek(int32 offs, int whence = SEEK_SET);
uint32 read(void *dataPtr, uint32 dataSize);
};
// FIXME/TODO: Get rid of the following hacks. Top priority: Get rid of
// the 'FILE' (re)definition. Simply calling it STD_FILE or so wold already
// suffice (need to adjust affected code, of course).
// Once the OSystem::logMessage() patch is in SVN, we should also be
// able to get rid of stderr, stdout, stdin.
// Moreover, the std_FOO() functions could then be moved to a private
// header, or even completely merged into DSFileStream, and all other
// DS code switch to use that.
#undef stderr
#undef stdout
#undef stdin
#define stdout ((DS::fileHandle *) -1)
#define stderr ((DS::fileHandle *) -2)
#define stdin ((DS::fileHandle *) -3)
#define FILE DS::fileHandle
// Please do not remove any of these prototypes that appear not to be required.
FILE* std_fopen(const char *name, const char *mode);
void std_fclose(FILE *handle);
size_t std_fread(void *ptr, size_t size, size_t numItems, FILE *handle);
size_t std_fwrite(const void *ptr, size_t size, size_t numItems, FILE *handle);
bool std_feof(FILE *handle);
long int std_ftell(FILE *handle);
int std_fseek(FILE *handle, long int offset, int whence);
void std_clearerr(FILE *handle);
int std_fflush(FILE *handle);
int std_ferror(FILE *handle);
} // End of namespace DS
#endif //_DS_FS_H
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