/*
 * CWarFileReaderクラスのインタフェースを記述するためのファイルです。
 * Author: AKIYAMA Kouhei
 * Created: 2002-10-01
 */

#ifndef SSLIB2_WAR_FILE_READER_H_INCLUDED
#define SSLIB2_WAR_FILE_READER_H_INCLUDED

#include "WaveReader.h"

namespace sslib2
{
	class CWarFileReader
		: public CWaveReader
	{
	//型
	private:
		struct CWarHeaderRecord
		{
			DWORD dataCount;
			DWORD indexRecordSize;
		};
		
		struct CWarIndexRecord
		{
			DWORD offset;
			DWORD size;
			DWORD loopIn;
			DWORD loopOut;
			DWORD loopCount;
			DWORD type : 8;
			DWORD streamFlag : 1;
			DWORD reserved : 32 - 9;
		};
	//属性、関連
	private:
		CWaveReader *m_reader;
		CWarIndexRecord m_indexRecord;
	//公開操作
	public:
		CWarFileReader();
		virtual ~CWarFileReader();
		bool Open(const char *filename, int index);
		virtual void Close(void);
		virtual bool IsOpen(void) const;
		virtual bool Read(void *dst, unsigned long size, unsigned long *read);
		virtual bool Seek(unsigned long sample);
		virtual unsigned long Tell(void) const;
		virtual bool IsTerminated(void) const;
		virtual PCMWAVEFORMAT GetFormat(void) const;
		virtual unsigned long GetTotal(void) const;
		virtual unsigned long GetLoopIn(void) const;
		virtual unsigned long GetLoopOut(void) const;
		virtual int GetLoopCount(void) const;
		virtual bool GetStreamFlag(void) const;
	//非公開操作
	private:
		static bool OpenWarFile(HANDLE fileHandle, int index, CWarIndexRecord *indexRecordPtr);
		static CWaveReader *CreateReader(HANDLE fileHandle, const CWarIndexRecord &indexRecord);
		static CWaveReader *CreatePlainWavFileReader(HANDLE fileHandle, const CWarIndexRecord &indexRecord);
		static CWaveReader *CreateAcmWavFileReader(HANDLE fileHandle, const CWarIndexRecord &indexRecord);
		static CWaveReader *CreateOggFileReader(HANDLE fileHandle, const CWarIndexRecord &indexRecord);
	};
}

#endif