/* 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.
 *
 */

#ifndef CHEWY_RESOURCE_H
#define CHEWY_RESOURCE_H


#include "common/scummsys.h"
#include "common/file.h"
#include "common/util.h"
#include "common/str.h"
#include "common/hashmap.h"
#include "common/hash-str.h"
#include "common/random.h"

namespace Chewy {

enum ResourceType {
	kResourcePCX = 0,		// unused
	kResourceTBF = 1,		// contained in TGPs
	kResourceTAF = 2,
	kResourceTFF = 3,
	kResourceVOC = 4,		// contained in TVPs
	kResourceTPF = 5,		// unused
	kResourceTMF = 6,		// unused
	kResourceMOD = 7,		// unused
	kResourceRAW = 8,		// unused
	kResourceLBM = 9,		// unused
	kResourceRDI = 10,
	kResourceTXT = 11,
	kResourceIIB = 12,
	kResourceSIB = 13,
	kResourceEIB = 14,
	kResourceATS = 15,		// unused
	kResourceSAA = 16,		// unused
	kResourceFLC = 17,		// unused
	kResourceAAD = 18,		// unused
	kResourceADS = 19,		// unused
	kResourceADH = 20,		// used in txt/diah.adh
	kResourceTGP = 21,		// background, used in back/comic.tgp, back/episode1.tgp and back/gbook.tgp
	kResourceTVP = 22,		// speech, used in sound/speech.tvp
	kResourceTTP = 23,		// unused
	kResourceTAP = 24,		// sound effects, music and cutscenes, used in sound/details.tap and cut/cut.tap
	kResourceCFO = 25,		// unused
	kResourceTCF = 26		// error messages, used in err/err_e.tcf (English) and err/err_d.tcf (German)
};

// 4 + 2 + 2 + 4 + 2 + 2 + 768 = 784 bytes
#define TBF_CHUNK_HEADER_SIZE 784

struct Chunk {
	uint32 size;
	ResourceType type;
	uint32 pos;	// position of the actual data
};

struct TBFChunk {
	// TBF chunk header
	// ID (TBF, followed by a zero)
	uint16 screenMode;
	uint16 compressionFlag;
	uint32 unpackedSize;
	uint16 width;
	uint16 height;
	byte palette[3 * 256];
};

typedef Common::Array<Chunk> ChunkList;
typedef Common::Array<TBFChunk> TBFChunkList;

class Resource {
public:
	Resource(Common::String filename);
	~Resource();

	ResourceType getType() const { return _resType; }
	uint32 getChunkCount() const;
	Chunk *getChunk(int num);
	TBFChunk *getTBFChunk(int num);
	byte *getChunkData(int num);

protected:
	Common::File _stream;
	uint16 _chunkCount;
	ResourceType _resType;

private:
	void readTBFChunk();

	ChunkList _chunkList;
	TBFChunkList _tbfChunkList;
};

} // End of namespace Chewy

#endif