scummvm/engines/glk/adrift/serialization.h
2021-12-26 18:48:43 +01:00

145 lines
2.9 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 3 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, see <http://www.gnu.org/licenses/>.
*
*/
#ifndef ADRIFT_SERIALIZATION_H
#define ADRIFT_SERIALIZATION_H
#include "common/memstream.h"
#include "common/str.h"
#include "glk/adrift/scprotos.h"
#include "glk/jumps.h"
namespace Glk {
namespace Adrift {
/**
* Saving serializer class
*/
class SaveSerializer {
private:
sc_gameref_t _game;
sc_write_callbackref_t _callback;
void *_opaque;
Common::MemoryWriteStreamDynamic _buffer;
private:
/**
* Flush pending buffer contents
*/
void flush(sc_bool is_final);
/**
* add a character to the buffer.
*/
void writeChar(sc_char character);
/**
* Write a buffer
*/
void write(const sc_char *buffer, sc_int length);
/**
* Write a string
*/
void writeString(const sc_char *string);
/**
* Write an integer
*/
void writeInt(sc_int value);
/**
* Write a special/long integer
*/
void writeIntSpecial(sc_int value);
/**
* Write an unsigned integer
*/
void writeUint(sc_uint value);
/**
* Write a boolean
*/
void writeBool(sc_bool boolean);
public:
/**
* Constructor
*/
SaveSerializer(sc_gameref_t game, sc_write_callbackref_t callback, void *opaque) :
_game(game), _callback(callback), _opaque(opaque), _buffer(DisposeAfterUse::YES) {
assert(callback);
}
/**
* Save method
*/
void save();
};
/**
* Loading serializer class
*/
class LoadSerializer {
private:
sc_gameref_t _game;
sc_read_callbackref_t _callback;
void *_opaque;
sc_tafref_t ser_tas;
sc_int ser_tasline;
private:
/**
* Reads a string
*/
const sc_char *readString(CONTEXT);
/**
* Read a signed integer
*/
sc_int readInt(CONTEXT);
/**
* Read an unsigned integer
*/
sc_uint readUint(CONTEXT);
/**
* Read a boolean
*/
sc_bool readBool(CONTEXT);
public:
/**
* Constructor
*/
LoadSerializer(sc_gameref_t game, sc_read_callbackref_t callback, void *opaque) :
_game(game), _callback(callback), _opaque(opaque), ser_tas(nullptr), ser_tasline(0) {
assert(callback);
}
/**
* Does the loading
*/
bool load();
};
} // End of namespace Adrift
} // End of namespace Glk
#endif