From 91a800cf028d46822536d1760ab1bc1b679b86c4 Mon Sep 17 00:00:00 2001
From: Johannes Schickel
Date: Mon, 17 Mar 2008 18:10:52 +0000
Subject: Implemented quick (via hotkeys) save/load suppot for HoF.

svn-id: r31154
---
 engines/kyra/saveload.cpp | 129 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 129 insertions(+)
 create mode 100644 engines/kyra/saveload.cpp

(limited to 'engines/kyra/saveload.cpp')

diff --git a/engines/kyra/saveload.cpp b/engines/kyra/saveload.cpp
new file mode 100644
index 0000000000..30c6782fb2
--- /dev/null
+++ b/engines/kyra/saveload.cpp
@@ -0,0 +1,129 @@
+/* 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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