dolphin/Source/Core/DiscIO/Src/DriveBlob.h

// Copyright (C) 2003-2008 Dolphin Project.

// 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, version 2.0.

// 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 2.0 for more details.

// A copy of the GPL 2.0 should have been included with the program.
// If not, see http://www.gnu.org/licenses/

// Official SVN repository and contact information can be found at
// http://code.google.com/p/dolphin-emu/

#ifndef _DRIVE_BLOB_H
#define _DRIVE_BLOB_H

#include "Blob.h"

#ifdef _WIN32
#include <windows.h>
#include <winioctl.h>
#endif

namespace DiscIO
{

class DriveReader : public SectorReader
{
private:
	DriveReader(const char *drive);
	void SetSectorSize(int blocksize);
	enum { CACHE_SIZE = 32 };
	int m_blocksize;
	u8* cache[CACHE_SIZE];
	u64 cache_tags[CACHE_SIZE];
	int cache_age[CACHE_SIZE];
	void GetBlock(u64 block_num, u8 *out_ptr);
#ifdef _WIN32
	HANDLE hDisc;
	PREVENT_MEDIA_REMOVAL	pmrLockCDROM;
#else
	FILE* file_;
#endif
	s64 size;
	u64 *block_pointers;
public:
	static DriveReader *Create(const char *drive);
	~DriveReader();
	u64 GetDataSize() const { return size; }
	u64 GetRawSize() const { return size; }
	bool Read(u64 offset, u64 nbytes, u8* out_ptr);
	const u8 *GetBlockData(u64 block_num);

};




}  // namespace

#endif  // _DRIVE_BLOB_H