c8eeae8d4d
eos() now only returns true _after_ trying to read past the end of the stream. This has a large potential for regressions. Please test! svn-id: r34549
150 lines
3.7 KiB
C++
150 lines
3.7 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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*/
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#ifndef _RAMSAVE_H_
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#define _RAMSAVE_H_
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#include "common/system.h"
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#include "common/savefile.h"
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// SaveFileManager class
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#define DS_MAX_SAVE_SIZE 150000
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class DSSaveFile : public Common::InSaveFile, public Common::OutSaveFile {
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int address;
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int ptr;
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bool ownsData;
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bool saveCompressed;
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struct SCUMMSave {
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u32 magic; // 4
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bool isValid; // 5
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bool pad; // 6
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char name[16]; // 22
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u32 size; // 26
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u32 compressedSize; // 30
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u16 extraMagic; // 32
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u32 reserved; // 36
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} __attribute__ ((packed));
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SCUMMSave save;
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u8* saveData;
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SCUMMSave* origHeader;
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bool isOpenFlag;
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bool isTempFile;
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bool eosReached;
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public:
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DSSaveFile();
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DSSaveFile(SCUMMSave* s, bool saveCompressed, u8* data);
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~DSSaveFile();
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void reset();
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bool isOpen() const { return isOpenFlag; }
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virtual bool eos() const;
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virtual void clearErr();
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virtual bool skip(uint32 size);
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virtual int32 pos() const;
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virtual int32 size() const;
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virtual bool seek(int32 pos, int whence);
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uint32 read(void *buf, uint32 size);
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uint32 write(const void *buf, uint32 size);
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void setName(char *name);
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char* getName() { return save.name; }
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bool isValid() { return save.isValid; }
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bool isTemp() { return isTempFile; }
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bool matches(char* prefix, int num);
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bool matches(char* filename);
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void clearData();
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void compress();
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int getRamUsage() { return sizeof(save) + save.compressedSize; }
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char* getRamImage() { return (char *) &save; }
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int getSize() { return save.size; }
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DSSaveFile* clone();
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bool loadFromSaveRAM(vu8* address);
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int saveToSaveRAM(vu8* address);
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void deleteFile();
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void operator delete(void *p) {
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// consolePrintf("Finished! size=%d\n", ((DSSaveFile *) (p))->save->size);
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}
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};
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class DSSaveFileManager : public Common::SaveFileManager {
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DSSaveFile gbaSave[8];
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static DSSaveFileManager* instancePtr;
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int sramBytesFree;
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public:
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DSSaveFileManager();
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~DSSaveFileManager();
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static DSSaveFileManager* instance() { return instancePtr; }
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DSSaveFile *openSavefile(const char *filename, bool saveOrLoad);
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virtual Common::OutSaveFile* openForSaving(const char* filename) { return openSavefile(filename, true); }
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virtual Common::InSaveFile* openForLoading(const char* filename) { return openSavefile(filename, false); }
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virtual bool removeSavefile(const char *filename);
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virtual Common::StringList listSavefiles(const char *pattern);
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void flushToSaveRAM();
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void addBytesFree(int size) { sramBytesFree += size; }
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int getBytesFree() { return sramBytesFree; }
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void deleteFile(char* name);
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void listFiles();
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void formatSram();
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void loadAllFromSRAM();
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static bool isExtraDataPresent();
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static int getExtraData();
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static void setExtraData(int data);
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protected:
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DSSaveFile *makeSaveFile(const char *filename, bool saveOrLoad);
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};
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#endif
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