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engines/illusions/gamarchive.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 ILLUSIONS_GAMARCHIVE_H
+#define ILLUSIONS_GAMARCHIVE_H
+
+#include "illusions/illusions.h"
+#include "common/file.h"
+
+namespace Illusions {
+
+struct GamFileEntry {
+	uint32 _id;
+	uint32 _fileOffset;
+	uint32 _fileSize;
+};
+
+struct GamGroupEntry {
+	uint32 _id;
+	uint _fileCount;
+	GamFileEntry *_files;
+	GamGroupEntry() : _fileCount(0), _files(0) {
+	}
+	~GamGroupEntry() {
+		delete[] _files;
+	}
+};
+
+class GamArchive {
+public:
+	GamArchive(const char *filename);
+	~GamArchive();
+	byte *readResource(uint32 sceneId, uint32 resId, uint32 &dataSize);
+protected:
+	Common::File *_fd;
+	uint _groupCount;
+	GamGroupEntry *_groups;
+	void loadDictionary();
+	const GamGroupEntry *getGroupEntry(uint32 sceneId);
+	const GamFileEntry *getFileEntry(const GamGroupEntry *groupEntry, uint32 resId);
+	const GamFileEntry *getGroupFileEntry(uint32 sceneId, uint32 resId);
+};
+
+} // End of namespace Illusions
+
+#endif // ILLUSIONS_GAMARCHIVE_H