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engines/dreamweb/rnca_archive.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 DREAMWEB_RNCA_ARCHIVE_H
+#define DREAMWEB_RNCA_ARCHIVE_H
+
+#include "common/archive.h"
+#include "common/ptr.h"
+#include "common/stream.h"
+#include "common/hashmap.h"
+#include "common/hash-str.h"
+
+namespace DreamWeb {
+class RNCAArchive : public Common::MemcachingCaseInsensitiveArchive {
+public:
+	bool hasFile(const Common::Path &path) const override;
+	int listMembers(Common::ArchiveMemberList&) const override;
+	const Common::ArchiveMemberPtr getMember(const Common::Path &path) const override;
+	Common::SharedArchiveContents readContentsForPath(const Common::Path &translated) const override;
+
+	static RNCAArchive* open(Common::SeekableReadStream *stream, DisposeAfterUse::Flag dispose = DisposeAfterUse::NO);
+	
+private:
+	class RNCAFileDescriptor {
+	private:
+		Common::String _fileName;
+		
+		// Offset of the file contents relative to the beginning of RNCA stream
+		uint32 _fileDataOffset;
+
+	        RNCAFileDescriptor(const Common::String& filename, uint32 off) : _fileName(filename), _fileDataOffset(off) {}
+		friend class RNCAArchive;
+	public:
+		// It's public for hashmap
+		RNCAFileDescriptor() : _fileDataOffset(0) {}
+	};
+
+	typedef Common::HashMap<Common::Path, RNCAFileDescriptor, Common::Path::IgnoreCase_Hash, Common::Path::IgnoreCase_EqualTo> FileMap;
+
+	RNCAArchive(FileMap files, Common::SeekableReadStream *stream, DisposeAfterUse::Flag dispose)
+		: _files(files), _stream(stream, dispose) {
+	}
+
+	FileMap _files;
+	Common::DisposablePtr<Common::SeekableReadStream> _stream;
+};
+}
+#endif