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engines/agds/database.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 DATABASE_H
+#define DATABASE_H
+
+#include "common/hash-str.h"
+#include "common/hashmap.h"
+#include "common/scummsys.h"
+#include "common/str.h"
+#include "common/stream.h"
+
+namespace AGDS {
+
+class Database {
+private:
+	struct Entry {
+		uint32 offset;
+		uint32 size;
+
+		Entry() : offset(), size() {}
+		Entry(uint32 o, uint32 s) : offset(o), size(s) {}
+	};
+
+	using EntriesType = Common::HashMap<Common::String, Entry>;
+
+	Common::String _filename;
+	bool _writeable;
+	uint32 _totalEntries;
+	uint32 _usedEntries;
+	uint32 _maxNameSize;
+
+	EntriesType _entries;
+
+private:
+	static uint32 getDataOffset(uint32 maxNameSize, uint32 totalEntries);
+
+public:
+	bool open(const Common::String &filename);
+	bool open(const Common::String &filename, Common::SeekableReadStream &stream);
+	Common::Array<Common::String> getEntries() const;
+
+	Common::SeekableReadStream *getEntry(const Common::String &name) const;
+	Common::SeekableReadStream *getEntry(Common::SeekableReadStream &parent, const Common::String &name) const;
+
+	static void write(Common::WriteStream &stream, const Common::HashMap<Common::String, Common::Array<uint8>> &entries);
+};
+
+} // End of namespace AGDS
+
+#endif /* AGDS_DATABASE_H */