/*
 * (C) 2003-2006 Gabest
 * (C) 2006-2023 see Authors.txt
 *
 * This file is part of MPC-BE.
 *
 * MPC-BE 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.
 *
 * MPC-BE 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/>.
 *
 */

#pragma once

#include <ExtLib/AsyncReader/asyncio.h>
#include <ExtLib/AsyncReader/asyncrdr.h>

#define CCDXAReaderName L"MPC CDXA Reader"

class CCDXAStream : public CAsyncStream
{
private:
	enum {
		RIFFCDXA_HEADER_SIZE = 44, // usually...
		RAW_SYNC_SIZE = 12, // 00 FF .. FF 00
		RAW_HEADER_SIZE = 4,
		RAW_SUBHEADER_SIZE = 8,
		RAW_DATA_SIZE = 2324,
		RAW_EDC_SIZE = 4,
		RAW_SECTOR_SIZE = 2352
	};

	CCritSec m_csLock;

	HANDLE m_hFile;
	LONGLONG m_llPosition, m_llLength;
	int m_nFirstSector;

	int m_nBufferedSector;
	BYTE m_sector[RAW_SECTOR_SIZE];

	bool LookForMediaSubType();

public:
	CCDXAStream();
	virtual ~CCDXAStream();

	bool Load(const WCHAR* fnw);

	HRESULT SetPointer(LONGLONG llPos);
	HRESULT Read(PBYTE pbBuffer, DWORD dwBytesToRead, BOOL bAlign, LPDWORD pdwBytesRead);
	LONGLONG Size(LONGLONG* pSizeAvailable);
	DWORD Alignment();
	void Lock();
	void Unlock();

	GUID m_subtype;
};

class __declspec(uuid("D367878E-F3B8-4235-A968-F378EF1B9A44"))
	CCDXAReader
	: public CAsyncReader
	, public IFileSourceFilter
{
	CCDXAStream m_stream;
	CStringW m_fn;

public:
	CCDXAReader(IUnknown* pUnk, HRESULT* phr);
	~CCDXAReader();

	DECLARE_IUNKNOWN
	STDMETHODIMP NonDelegatingQueryInterface(REFIID riid, void** ppv);

	// CBaseFilter
	STDMETHODIMP QueryFilterInfo(FILTER_INFO* pInfo);

	// IFileSourceFilter
	STDMETHODIMP Load(LPCOLESTR pszFileName, const AM_MEDIA_TYPE* pmt);
	STDMETHODIMP GetCurFile(LPOLESTR* ppszFileName, AM_MEDIA_TYPE* pmt);
};
