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