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engines/toon/resource.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/>.
+ *
+ *
+ * This file is dual-licensed.
+ * In addition to the GPLv3 license mentioned above, MojoTouch has
+ * exclusively licensed this code on March 23th, 2024, to be used in
+ * closed-source products.
+ * Therefore, any contributions (commits) to it will also be dual-licensed.
+ *
+ */
+
+#ifndef TOON_RESOURCE_H
+#define TOON_RESOURCE_H
+
+#include "common/array.h"
+#include "common/str.h"
+#include "common/file.h"
+#include "common/stream.h"
+
+#define MAX_CACHE_SIZE	(4 * 1024 * 1024)
+
+namespace Toon {
+
+class PakFile {
+public:
+	PakFile();
+	~PakFile();
+
+	void open(Common::SeekableReadStream *rs, const Common::Path &packName);
+	uint8 *getFileData(const Common::Path &fileName, uint32 *fileSize);
+	Common::Path getPackName() { return _packName; }
+	Common::SeekableReadStream *createReadStream(const Common::Path &fileName);
+	void close();
+
+protected:
+	struct File {
+		char _name[13];
+		int32 _offset;
+		int32 _size;
+	};
+	Common::Path _packName;
+
+	uint32 _numFiles;
+	Common::Array<File> _files;
+};
+
+class ToonEngine;
+
+class CacheEntry {
+public:
+	CacheEntry() : _age(0), _size(0), _data(0) {}
+	~CacheEntry() {
+		free(_data);
+	}
+
+	Common::Path _packName;
+	Common::Path _fileName;
+	uint32 _age;
+	uint32 _size;
+	uint8 *_data;
+};
+
+class Resources {
+public:
+	Resources(ToonEngine *vm);
+	~Resources();
+	bool openPackage(const Common::Path &file);
+	void closePackage(const Common::Path &fileName);
+	Common::SeekableReadStream *openFile(const Common::Path &file);
+	uint8 *getFileData(const Common::Path &fileName, uint32 *fileSize); // this memory must be copied to your own structures!
+	void purgeFileData();
+
+protected:
+	ToonEngine *_vm;
+	Common::Array<uint8 *> _allocatedFileData;
+	Common::Array<PakFile *> _pakFiles;
+	uint32 _cacheSize;
+	Common::Array<CacheEntry *> _resourceCache;
+
+	void removePackageFromCache(const Common::Path &packName);
+	bool getFromCache(const Common::Path &fileName, uint32 *fileSize, uint8 **fileData);
+	void addToCache(const Common::Path &packName, const Common::Path &fileName, uint32 fileSize, uint8 *fileData);
+};
+
+} // End of namespace Toon
+#endif