mirror of
https://github.com/libretro/scummvm.git
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122 lines
3.3 KiB
C++
122 lines
3.3 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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*
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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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*
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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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#ifndef SCUMM_FILE_H
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#define SCUMM_FILE_H
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#include "common/file.h"
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#include "scumm/detection.h"
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namespace Scumm {
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class BaseScummFile : public Common::File {
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public:
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virtual void setEnc(byte value) = 0;
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virtual bool open(const Common::String &filename, AccessMode mode = kFileReadMode) = 0;
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virtual bool openSubFile(const Common::String &filename) = 0;
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virtual bool eof() = 0;
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virtual uint32 pos() = 0;
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virtual uint32 size() = 0;
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virtual void seek(int32 offs, int whence = SEEK_SET) = 0;
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virtual uint32 read(void *dataPtr, uint32 dataSize) = 0;
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virtual uint32 write(const void *dataPtr, uint32 dataSize) = 0;
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};
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class ScummFile : public BaseScummFile {
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private:
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byte _encbyte;
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uint32 _subFileStart;
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uint32 _subFileLen;
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public:
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ScummFile();
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void setEnc(byte value);
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void setSubfileRange(uint32 start, uint32 len);
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void resetSubfile();
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bool open(const Common::String &filename, AccessMode mode = kFileReadMode);
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bool openSubFile(const Common::String &filename);
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bool eof();
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uint32 pos();
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uint32 size();
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void seek(int32 offs, int whence = SEEK_SET);
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uint32 read(void *dataPtr, uint32 dataSize);
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uint32 write(const void *dataPtr, uint32 dataSize);
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};
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class ScummDiskImage : public BaseScummFile {
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private:
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Common::MemoryReadStream *_stream;
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byte _roomDisks[59], _roomTracks[59], _roomSectors[59];
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byte *_buf;
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GameSettings _game;
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Common::String _disk1, _disk2;
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int _openedDisk;
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int _numGlobalObjects;
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int _numRooms;
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int _numCostumes;
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int _numScripts;
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int _numSounds;
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const int *_resourcesPerFile;
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bool openDisk(char num);
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bool generateIndex();
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bool generateResource(int res);
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uint16 extractIndex(Common::WriteStream *out);
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uint16 extractResource(Common::WriteStream *out, int res);
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byte fileReadByte();
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uint16 fileReadUint16LE();
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public:
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ScummDiskImage(const char *disk1, const char *disk2, GameSettings game);
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void setEnc(byte value);
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bool open(const Common::String &filename, AccessMode mode = kFileReadMode);
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bool openSubFile(const Common::String &filename);
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void close();
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bool eof() { return _stream->eos(); }
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uint32 pos() { return _stream->pos(); }
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uint32 size() { return _stream->size(); }
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void seek(int32 offs, int whence = SEEK_SET) { _stream->seek(offs, whence); }
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uint32 read(void *dataPtr, uint32 dataSize) { return _stream->read(dataPtr, dataSize); }
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uint32 write(const void *dataPtr, uint32 dataSize);
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};
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} // End of namespace Scumm
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#endif
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