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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 GLK_BLORB_H
#define GLK_BLORB_H
#include "glk/glk_types.h"
#include "glk/streams.h"
#include "common/archive.h"
#include "common/array.h"
namespace Glk {
/**
* Describes one chunk of the Blorb file.
*/
struct ChunkEntry {
uint _type;
uint _number;
uint _id;
size_t _offset;
size_t _size;
Common::String _filename;
};
enum {
ID_FORM = MKTAG('F', 'O', 'R', 'M'),
ID_IFRS = MKTAG('I', 'F', 'R', 'S'),
ID_RIdx = MKTAG('R', 'I', 'd', 'x'),
ID_Snd = MKTAG('S', 'n', 'd', ' '),
ID_Exec = MKTAG('E', 'x', 'e', 'c'),
ID_Pict = MKTAG('P', 'i', 'c', 't'),
ID_Data = MKTAG('D', 'a', 't', 'a'),
ID_Copyright = MKTAG('(', 'c', ')', ' '),
ID_AUTH = MKTAG('A', 'U', 'T', 'H'),
ID_ANNO = MKTAG('A', 'N', 'N', 'O'),
ID_ZCOD = MKTAG('Z', 'C', 'O', 'D'),
ID_GLUL = MKTAG('G', 'L', 'U', 'L'),
ID_TAD2 = MKTAG('T', 'A', 'D', '2'),
ID_TAD3 = MKTAG('T', 'A', 'D', '3'),
ID_HUGO = MKTAG('H', 'U', 'G', 'O'),
ID_SAAI = MKTAG('S', 'A', 'A', 'I'),
ID_JPEG = MKTAG('J', 'P', 'E', 'G'),
ID_PNG = MKTAG('P', 'N', 'G', ' '),
ID_Rect = MKTAG('R', 'e', 'c', 't'),
ID_MIDI = MKTAG('M', 'I', 'D', 'I'),
ID_MP3 = MKTAG('M', 'P', '3', ' '),
ID_WAVE = MKTAG('W', 'A', 'V', 'E'),
ID_AIFF = MKTAG('A', 'I', 'F', 'F'),
ID_OGG = MKTAG('O', 'G', 'G', ' '),
ID_MOD = MKTAG('M', 'O', 'D', ' ')
};
/**
* Blorb file manager
*/
class Blorb : public Common::Archive {
private:
Common::String _filename;
Common::FSNode _fileNode;
InterpreterType _interpType;
Common::Array<ChunkEntry> _chunks; ///< list of chunk descriptors
private:
/**
* Parses the Blorb file index to load in a list of the chunks
*/
Common::ErrorCode load();
public:
/**
* Constructor
*/
Blorb(const Common::String &filename, InterpreterType interpType);
/**
* Constructor
*/
Blorb(const Common::FSNode &fileNode, InterpreterType interpType);
/**
* Check if a member with the given name is present in the Archive.
* Patterns are not allowed, as this is meant to be a quick File::exists()
* replacement.
*/
virtual bool hasFile(const Common::String &name) const override;
/**
* Add all members of the Archive to list.
* Must only append to list, and not remove elements from it.
*
* @return the number of names added to list
*/
virtual int listMembers(Common::ArchiveMemberList &list) const override;
/**
* Returns a ArchiveMember representation of the given file.
*/
virtual const Common::ArchiveMemberPtr getMember(const Common::String &name) const override;
/**
* Create a stream bound to a member with the specified name in the
* archive. If no member with this name exists, 0 is returned.
* @return the newly created input stream
*/
virtual Common::SeekableReadStream *createReadStreamForMember(const Common::String &name) const override;
/**
* Read the RIdx section from the stream.
*/
static bool readRIdx(Common::SeekableReadStream &stream, Common::Array<ChunkEntry> &chunks);
/**
* Returns true if a given file is a Blorb file
*/
static bool isBlorb(Common::SeekableReadStream &stream, uint32 type = 0);
/**
* Returns true if a given filename specifies a Blorb file
*/
static bool isBlorb(const Common::String &filename, uint32 type = 0);
/**
* Returns true if a given filename has a Blorb file extension
*/
static bool hasBlorbExt(const Common::String &filename);
};
} // End of namespace Glk
#endif
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