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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.
*
* $URL$
* $Id$
*
*/
#ifndef GOB_SAVELOAD_H
#define GOB_SAVELOAD_H
#include "common/array.h"
#include "common/stream.h"
#include "gob/video.h"
#include "gob/variables.h"
namespace Gob {
class TempSprite {
public:
TempSprite();
~TempSprite();
bool getProperties(int16 dataVar, int32 size, int32 offset,
int &index, bool &palette) const;
int32 getSize() const;
bool saveSprite(const SurfaceDesc &surfDesc);
bool savePalette(const Video::Color *palette);
bool loadSprite(SurfaceDesc &surfDesc);
bool loadPalette(Video::Color *palette);
bool toBuffer(byte *buffer, int32 size, bool palette) const;
bool fromBuffer(const byte *buffer, int32 size, bool palette);
private:
byte *_sprite;
int16 _width;
int16 _height;
int32 _size;
Video::Color _palette[256];
int getSpriteIndex(int32 size) const;
bool getSpritePalette(int32 size) const;
};
class PlainSave {
public:
PlainSave(Endianness endianness);
~PlainSave();
bool save(int16 dataVar, int32 size, int32 offset, const char *name,
const Variables *variables);
bool load(int16 dataVar, int32 size, int32 offset, const char *name,
Variables *variables);
bool save(int16 dataVar, int32 size, int32 offset, const char *name,
const byte *variables, const byte *variableSizes) const;
bool load(int16 dataVar, int32 size, int32 offset, const char *name,
byte *variables, byte *variableSizes) const;
private:
Endianness _endianness;
};
class StagedSave {
public:
StagedSave(Endianness endianness);
~StagedSave();
void addStage(int32 size, bool endianed = true);
bool save(int16 dataVar, int32 size, int32 offset, const char *name,
const Variables *variables);
bool load(int16 dataVar, int32 size, int32 offset, const char *name,
Variables *variables);
bool save(int16 dataVar, int32 size, int32 offset, const char *name,
const byte *variables, const byte *variableSizes);
bool load(int16 dataVar, int32 size, int32 offset, const char *name,
byte *variables, byte *variableSizes);
private:
struct Stage {
byte *bufVar;
byte *bufVarSizes;
int32 size;
int32 offset;
bool endianed;
Stage(int32 s = 0, int32 off = 0, bool end = true) :
bufVar(0), bufVarSizes(0), size(s), offset(off), endianed(end) {}
};
enum Mode {
kModeNone,
kModeSave,
kModeLoad
};
Endianness _endianness;
Common::Array<Stage> _stages;
enum Mode _mode;
char *_name;
bool _loaded;
int findStage(int16 dataVar, int32 size, int32 offset) const;
bool allSaved() const;
uint32 getSize() const;
void clear();
void assertMode(Mode mode, const char *name);
bool write() const;
bool read();
};
class PagedBuffer {
public:
PagedBuffer(uint32 pageSize = 1024);
~PagedBuffer();
bool empty() const;
uint32 getSize() const;
void clear();
bool write(const byte *buffer, uint32 size, uint32 offset);
bool read(byte *buffer, uint32 size, uint32 offset) const;
uint32 writeToStream(Common::WriteStream &out) const;
uint32 readFromStream(Common::ReadStream &in);
private:
uint32 _size;
uint32 _pageSize;
Common::Array<byte *> _pages;
void grow(uint32 size, uint32 offset);
};
class SaveLoad {
public:
enum SaveMode {
kSaveModeNone,
kSaveModeIgnore,
kSaveModeSave
};
SaveLoad(GobEngine *vm, const char *targetName);
virtual ~SaveLoad();
virtual SaveMode getSaveMode(const char *fileName) = 0;
int32 getSize(const char *fileName);
bool load(const char *fileName, int16 dataVar, int32 size, int32 offset);
bool save(const char *fileName, int16 dataVar, int32 size, int32 offset);
char *setCurrentSlot(char *destName, int slot);
void buildIndex(byte *buffer, char *name, int n, int32 size, int32 offset = 0);
static const char *stripPath(const char *fileName);
static bool fromEndian(byte *buf, const byte *sizes, uint32 count, Endianness endianness);
static bool toEndian(byte *buf, const byte *sizes, uint32 count, Endianness endianness);
static uint32 read(Common::ReadStream &in,
byte *buf, byte *sizes, uint32 count);
static uint32 write(Common::WriteStream &out,
const byte *buf, const byte *sizes, uint32 count);
static bool loadDataEndian(Common::ReadStream &in,
int16 dataVar, uint32 size,
byte *variables, byte *variableSizes, Endianness endianness);
static bool saveDataEndian(Common::WriteStream &out,
int16 dataVar, uint32 size,
const byte *variables, const byte *variableSizes, Endianness endianness);
protected:
GobEngine *_vm;
char *_targetName;
virtual int getSaveType(const char *fileName) = 0;
virtual int32 getSizeVersioned(int type) = 0;
virtual bool loadVersioned(int type, int16 dataVar, int32 size, int32 offset) = 0;
virtual bool saveVersioned(int type, int16 dataVar, int32 size, int32 offset) = 0;
};
class SaveLoad_v2 : public SaveLoad {
public:
enum SaveType {
kSaveGame,
kSaveTempSprite,
kSaveNotes
};
SaveLoad_v2(GobEngine *vm, const char *targetName);
virtual ~SaveLoad_v2();
virtual SaveMode getSaveMode(const char *fileName);
protected:
struct SaveFile {
const char *sourceName;
char *destName;
SaveMode mode;
SaveType type;
};
static SaveFile _saveFiles[];
int32 _varSize;
TempSprite _tmpSprite;
PlainSave *_notes;
StagedSave *_save;
byte _indexBuffer[600];
bool _hasIndex;
virtual int getSaveType(const char *fileName);
virtual int32 getSizeVersioned(int type);
virtual bool loadVersioned(int type, int16 dataVar, int32 size, int32 offset);
virtual bool saveVersioned(int type, int16 dataVar, int32 size, int32 offset);
int getSlot(int32 offset) const;
int getSlotRemainder(int32 offset) const;
int32 getSizeGame(SaveFile &saveFile);
int32 getSizeTempSprite(SaveFile &saveFile);
int32 getSizeNotes(SaveFile &saveFile);
bool loadGame(SaveFile &saveFile, int16 dataVar, int32 size, int32 offset);
bool loadTempSprite(SaveFile &saveFile, int16 dataVar, int32 size, int32 offset);
bool loadNotes(SaveFile &saveFile, int16 dataVar, int32 size, int32 offset);
bool saveGame(SaveFile &saveFile, int16 dataVar, int32 size, int32 offset);
bool saveTempSprite(SaveFile &saveFile, int16 dataVar, int32 size, int32 offset);
bool saveNotes(SaveFile &saveFile, int16 dataVar, int32 size, int32 offset);
void assertInited();
};
enum SaveType {
kSaveNone = -1,
kSaveGame,
kSaveTempSprite,
kSaveNotes,
kSaveScreenshot,
kSaveIgnore
};
class SaveLoad_v3 : public SaveLoad {
public:
enum SaveType {
kSaveNone,
kSaveGame,
kSaveTempSprite,
kSaveNotes,
kSaveScreenshot
};
SaveLoad_v3(GobEngine *vm, const char *targetName,
uint32 screenshotSize = 19968,
int32 indexOffset = 40, int32 screenshotOffset = 80);
virtual ~SaveLoad_v3();
virtual SaveMode getSaveMode(const char *fileName);
protected:
struct SaveFile {
const char *sourceName;
char *destName;
SaveMode mode;
SaveType type;
int slot;
};
bool _useScreenshots;
bool _firstSizeGame;
uint32 _screenshotSize;
int32 _indexOffset;
int32 _screenshotOffset;
static SaveFile _saveFiles[];
int32 _varSize;
TempSprite _screenshot;
TempSprite _tmpSprite;
PlainSave *_notes;
StagedSave *_save;
byte _propBuffer[1000];
byte _indexBuffer[1200];
bool _hasIndex;
virtual int getSaveType(const char *fileName);
virtual int32 getSizeVersioned(int type);
virtual bool loadVersioned(int type, int16 dataVar, int32 size, int32 offset);
virtual bool saveVersioned(int type, int16 dataVar, int32 size, int32 offset);
int getSlot(int32 offset) const;
int getSlotRemainder(int32 offset) const;
int32 getSizeGame(SaveFile &saveFile);
int32 getSizeTempSprite(SaveFile &saveFile);
int32 getSizeNotes(SaveFile &saveFile);
int32 getSizeScreenshot(SaveFile &saveFile);
bool loadGame(SaveFile &saveFile, int16 dataVar, int32 size, int32 offset);
bool loadTempSprite(SaveFile &saveFile, int16 dataVar, int32 size, int32 offset);
bool loadNotes(SaveFile &saveFile, int16 dataVar, int32 size, int32 offset);
bool loadScreenshot(SaveFile &saveFile, int16 dataVar, int32 size, int32 offset);
bool saveGame(SaveFile &saveFile, int16 dataVar, int32 size, int32 offset);
bool saveTempSprite(SaveFile &saveFile, int16 dataVar, int32 size, int32 offset);
bool saveNotes(SaveFile &saveFile, int16 dataVar, int32 size, int32 offset);
bool saveScreenshot(SaveFile &saveFile, int16 dataVar, int32 size, int32 offset);
void assertInited();
void buildScreenshotIndex(byte *buffer, char *name, int n);
};
class SaveLoad_v4 : public SaveLoad {
public:
enum SaveType {
kSaveNone,
kSaveScreenProps,
kSaveGame,
kSaveGameScreenProps
};
bool _firstSizeGame;
SaveLoad_v4(GobEngine *vm, const char *targetName);
virtual ~SaveLoad_v4();
virtual SaveMode getSaveMode(const char *fileName);
protected:
struct SaveFile {
const char *sourceName;
char *destName;
SaveMode mode;
SaveType type;
};
static SaveFile _saveFiles[];
int32 _varSize;
StagedSave *_save;
byte _propBuffer[1000];
byte _indexBuffer[1200];
bool _hasIndex;
byte *_screenProps;
virtual int getSaveType(const char *fileName);
virtual int32 getSizeVersioned(int type);
virtual bool loadVersioned(int type, int16 dataVar, int32 size, int32 offset);
virtual bool saveVersioned(int type, int16 dataVar, int32 size, int32 offset);
int getSlot(int32 offset) const;
int getSlotRemainder(int32 offset) const;
int32 getSizeScreenProps(SaveFile &saveFile);
int32 getSizeGame(SaveFile &saveFile);
int32 getSizeGameScreenProps(SaveFile &saveFile);
bool loadScreenProps(SaveFile &saveFile, int16 dataVar, int32 size, int32 offset);
bool loadGame(SaveFile &saveFile, int16 dataVar, int32 size, int32 offset);
bool loadGameScreenProps(SaveFile &saveFile, int16 dataVar, int32 size, int32 offset);
bool saveScreenProps(SaveFile &saveFile, int16 dataVar, int32 size, int32 offset);
bool saveGame(SaveFile &saveFile, int16 dataVar, int32 size, int32 offset);
bool saveGameScreenProps(SaveFile &saveFile, int16 dataVar, int32 size, int32 offset);
void assertInited();
};
} // End of namespace Gob
#endif // GOB_SAVELOAD_H
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