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engines/ultima/ultima8/filesys/u8_save_file.h

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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 3 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, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef ULTIMA8_FILESYS_U8SAVEFILE_H
+#define ULTIMA8_FILESYS_U8SAVEFILE_H
+
+#include "common/archive.h"
+
+#include "ultima/shared/std/containers.h"
+#include "ultima/shared/std/string.h"
+
+namespace Ultima {
+namespace Ultima8 {
+
+class U8SaveFile : public Common::Archive {
+public:
+	//! create U8SaveFile from datasource; U8SaveFile takes ownership of ds
+	//! and deletes it when destructed
+	explicit U8SaveFile(Common::SeekableReadStream *rs);
+	~U8SaveFile() override;
+
+	//! Check if constructed object is indeed a valid archive
+	bool isValid() const {
+		return _valid;
+	}
+
+	// Common::Archive API implementation
+	bool hasFile(const Common::Path &path) const override;
+	int listMembers(Common::ArchiveMemberList &list) const override;
+	const Common::ArchiveMemberPtr getMember(const Common::Path &path) const override;
+	Common::SeekableReadStream *createReadStreamForMember(const Common::Path &path) const override;
+
+	static bool isU8SaveFile(Common::SeekableReadStream *rs);
+
+protected:
+	Common::SeekableReadStream *_rs;
+	bool _valid;
+
+	struct FileEntry {
+		uint32 _offset;
+		uint32 _size;
+		FileEntry() : _offset(0), _size(0) {}
+	};
+
+	typedef Common::HashMap<Common::String, FileEntry, Common::IgnoreCase_Hash, Common::IgnoreCase_EqualTo> U8SaveFileMap;
+	U8SaveFileMap _map;
+
+private:
+	bool readMetadata();
+};
+
+} // End of namespace Ultima8
+} // End of namespace Ultima
+
+#endif