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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.
*
* $URL$
* $Id$
*
*/
#include "common/endian.h"
#include "common/savefile.h"
#include "common/system.h"
#include "kyra/kyra.h"
#define GF_FLOPPY (1 << 0)
#define GF_TALKIE (1 << 1)
#define GF_FMTOWNS (1 << 2)
namespace Kyra {
Common::InSaveFile *KyraEngine::openSaveForReading(const char *filename, uint32 &version, char *saveName) {
debugC(9, kDebugLevelMain, "KyraEngine::openSaveForReading('%s', %p, %p)", filename, (const void*)&version, saveName);
Common::InSaveFile *in = 0;
if (!(in = _saveFileMan->openForLoading(filename))) {
warning("Can't open file '%s', game not loaded", filename);
return 0;
}
uint32 type = in->readUint32BE();
// FIXME: The kyra savegame code used to be endian unsafe. Uncomment the
// following line to graciously handle old savegames from LE machines.
// if (type != MKID_BE('KYRA') && type != MKID_BE('ARYK')) {
if (type != MKID_BE(saveGameID())) {
warning("No Kyrandia savefile header.");
delete in;
return 0;
}
version = in->readUint32BE();
if (version > curSaveVersion()) {
warning("Savegame is not the right version (%u)", version);
delete in;
return 0;
}
char saveNameBuffer[31];
if (!saveName)
saveName = saveNameBuffer;
in->read(saveName, 31);
if (_flags.gameID == GI_KYRA1 && version < 2) {
warning("Make sure your savefile was from this version! (too old savefile version to detect that)");
} else {
uint32 flags = in->readUint32BE();
if ((flags & GF_FLOPPY) && _flags.isTalkie) {
warning("Can not load floppy savefile for this (non floppy) gameversion");
delete in;
return 0;
} else if ((flags & GF_TALKIE) && !(_flags.isTalkie)) {
warning("Can not load cdrom savefile for this (non cdrom) gameversion");
delete in;
return 0;
} else if ((flags & GF_FMTOWNS) && !(_flags.platform == Common::kPlatformFMTowns || _flags.platform == Common::kPlatformPC98)) {
warning("can not load FM-Towns/PC98 savefile for this (non FM-Towns/PC98) gameversion");
delete in;
return 0;
}
}
if (in->ioFailed()) {
error("Load failed ('%s', '%s').", filename, saveName);
delete in;
return 0;
}
return in;
}
Common::OutSaveFile *KyraEngine::openSaveForWriting(const char *filename, const char *saveName) const {
debugC(9, kDebugLevelMain, "KyraEngine::openSaveForWriting('%s', '%s')", filename, saveName);
if (_quitFlag)
return 0;
Common::OutSaveFile *out = 0;
if (!(out = _saveFileMan->openForSaving(filename))) {
warning("Can't create file '%s', game not saved", filename);
return 0;
}
// Savegame version
out->writeUint32BE(saveGameID());
out->writeUint32BE(curSaveVersion());
out->write(saveName, 31);
if (_flags.isTalkie)
out->writeUint32BE(GF_TALKIE);
else if (_flags.platform == Common::kPlatformFMTowns || _flags.platform == Common::kPlatformPC98)
out->writeUint32BE(GF_FMTOWNS);
else
out->writeUint32BE(GF_FLOPPY);
if (out->ioFailed()) {
warning("Can't write file '%s'. (Disk full?)", filename);
delete out;
return 0;
}
return out;
}
} // end of namespace Kyra
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