scummvm/engines/asylum/respack.h

/* 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 2
 * 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, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 * $URL$
 * $Id$
 *
 */

#ifndef ASYLUM_RESOURCEPACK_H
#define ASYLUM_RESOURCEPACK_H

#include "asylum/shared.h"

#include "common/array.h"
#include "common/file.h"
#include "common/hashmap.h"

namespace Asylum {

class ResourceManager;

struct ResourceEntry {
	byte   *data;
	uint32  size;
	uint32  offset;
};

class ResourcePack {
public:
	ResourceEntry *get(uint16 index);
	int count();

protected:
	ResourcePack(Common::String filename);
	~ResourcePack();

private:
	Common::Array<ResourceEntry> _resources;
	Common::File _packFile;

	void init(Common::String filename);

	friend ResourceManager;
};

class ResourceManager {
public:
	ResourceManager() {}
	virtual ~ResourceManager() {}

	//void load(ResourcePackId id);

	ResourceEntry *get(ResourceId id);
	//int count(ResourceId id);

	//void unload(ResourcePackId id);

private:
	struct ResourcePackId_EqualTo {
		bool operator()(const ResourcePackId &x, const ResourcePackId &y) const { return x == y; }
	};

	struct ResourcePackId_Hash {
		uint operator()(const ResourcePackId &x) const { return x; }
	};

	typedef Common::HashMap<ResourcePackId, ResourcePack*, ResourcePackId_Hash, ResourcePackId_EqualTo> ResourceCache;

	ResourceCache _resources;
	ResourceCache _music;
};

} // end of namespace Asylum

#endif