AppleWin/source/DiskImage.h

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#pragma once
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/*
AppleWin : An Apple //e emulator for Windows
Copyright (C) 1994-1996, Michael O'Brien
Copyright (C) 1999-2001, Oliver Schmidt
Copyright (C) 2002-2005, Tom Charlesworth
Copyright (C) 2006-2010, Tom Charlesworth, Michael Pohoreski
AppleWin 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.
AppleWin 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 AppleWin; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "DiskDefs.h"
#ifdef _MSC_VER
#define RAND_THRESHOLD(num, den) ((RAND_MAX * num) / den)
#else
// RAND_MAX is a massive number which overflows when (* num) is applied above
#define RAND_THRESHOLD(num, den) ((RAND_MAX / den) * num)
#endif
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#define TRACK_DENIBBLIZED_SIZE (16 * 256) // #Sectors x Sector-size
#define TRACKS_STANDARD 35
#define TRACKS_EXTRA 5 // Allow up to a 40-track .dsk image (160KB)
#define TRACKS_MAX (TRACKS_STANDARD+TRACKS_EXTRA)
enum Disk_Status_e
{
DISK_STATUS_OFF , // motor is off
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DISK_STATUS_READ ,
DISK_STATUS_WRITE,
DISK_STATUS_PROT , // NOTE: GetDriveLightStatus() and GetCurrentState() return slightly different states
DISK_STATUS_EMPTY, // See: GetCurrentState(); no disk image mounted
DISK_STATUS_SPIN , // See: GetCurrentState(), motor has been turned off, spinning before stopping
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NUM_DISK_STATUS
};
enum ImageError_e
{
eIMAGE_ERROR_NONE,
eIMAGE_ERROR_BAD_POINTER,
eIMAGE_ERROR_BAD_SIZE,
eIMAGE_ERROR_BAD_FILE,
eIMAGE_ERROR_UNSUPPORTED,
eIMAGE_ERROR_UNSUPPORTED_HDV,
eIMAGE_ERROR_GZ,
eIMAGE_ERROR_ZIP,
eIMAGE_ERROR_REJECTED_MULTI_ZIP,
eIMAGE_ERROR_UNABLE_TO_OPEN,
eIMAGE_ERROR_UNABLE_TO_OPEN_GZ,
eIMAGE_ERROR_UNABLE_TO_OPEN_ZIP,
eIMAGE_ERROR_FAILED_TO_GET_PATHNAME,
eIMAGE_ERROR_ZEROLENGTH_WRITEPROTECTED,
eIMAGE_ERROR_FAILED_TO_INIT_ZEROLENGTH,
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};
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const int MAX_DISK_IMAGE_NAME = 15;
const int MAX_DISK_FULL_NAME = 127;
struct ImageInfo;
ImageError_e ImageOpen(const std::string & pszImageFilename, ImageInfo** ppImageInfo, bool* pWriteProtected, const bool bCreateIfNecessary, std::string& strFilenameInZip, const bool bExpectFloppy=true);
void ImageClose(ImageInfo* const pImageInfo);
BOOL ImageBoot(ImageInfo* const pImageInfo);
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void ImageReadTrack(ImageInfo* const pImageInfo, float phase, LPBYTE pTrackImageBuffer, int* pNibbles, UINT* pBitCount, bool enhanceDisk);
void ImageWriteTrack(ImageInfo* const pImageInfo, float phase, LPBYTE pTrackImageBuffer, int nNibbles);
bool ImageReadBlock(ImageInfo* const pImageInfo, UINT nBlock, LPBYTE pBlockBuffer);
bool ImageWriteBlock(ImageInfo* const pImageInfo, UINT nBlock, LPBYTE pBlockBuffer);
UINT ImageGetNumTracks(ImageInfo* const pImageInfo);
bool ImageIsMultiFileZip(ImageInfo* const pImageInfo);
const std::string & ImageGetPathname(ImageInfo* const pImageInfo);
UINT ImageGetImageSize(ImageInfo* const pImageInfo);
bool ImageIsWOZ(ImageInfo* const pImageInfo);
BYTE ImageGetOptimalBitTiming(ImageInfo* const pImageInfo);
UINT ImagePhaseToTrack(ImageInfo* const pImageInfo, const float phase, const bool limit=true);
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UINT ImageGetMaxNibblesPerTrack(ImageInfo* const pImageInfo);
bool ImageIsBootSectorFormatSector13(ImageInfo* const pImageInfo);
void GetImageTitle(LPCTSTR pPathname, std::string & pImageName, std::string & pFullName);