mirror of
https://github.com/AppleWin/AppleWin.git
synced 2024-11-16 15:06:13 +00:00
448 lines
14 KiB
C++
448 lines
14 KiB
C++
#pragma once
|
|
|
|
#include "DiskDefs.h"
|
|
#include "DiskImage.h"
|
|
#include "zip.h"
|
|
|
|
#define GZ_SUFFIX ".gz"
|
|
#define GZ_SUFFIX_LEN (sizeof(GZ_SUFFIX)-1)
|
|
|
|
#define ZIP_SUFFIX ".zip"
|
|
#define ZIP_SUFFIX_LEN (sizeof(ZIP_SUFFIX)-1)
|
|
|
|
|
|
enum eImageType {eImageUNKNOWN, eImageDO, eImagePO, eImageNIB1, eImageNIB2, eImageHDV, eImageIIE, eImageAPL, eImagePRG, eImageWOZ1, eImageWOZ2};
|
|
enum eDetectResult {eMismatch, ePossibleMatch, eMatch};
|
|
|
|
class CImageBase;
|
|
class CImageHelperBase;
|
|
|
|
enum FileType_e {eFileNormal, eFileGZip, eFileZip};
|
|
|
|
struct ImageInfo
|
|
{
|
|
std::string szFilename;
|
|
CImageBase* pImageType;
|
|
CImageHelperBase* pImageHelper;
|
|
FileType_e FileType;
|
|
HANDLE hFile;
|
|
DWORD uOffset;
|
|
bool bWriteProtected;
|
|
UINT uImageSize;
|
|
std::string szFilenameInZip;
|
|
zip_fileinfo zipFileInfo;
|
|
UINT uNumEntriesInZip;
|
|
UINT uNumValidImagesInZip;
|
|
// Floppy only
|
|
UINT uNumTracks;
|
|
BYTE* pImageBuffer;
|
|
BYTE* pWOZTrackMap; // WOZ only (points into pImageBuffer)
|
|
BYTE optimalBitTiming; // WOZ only
|
|
BYTE bootSectorFormat; // WOZ only
|
|
UINT maxNibblesPerTrack;
|
|
|
|
ImageInfo();
|
|
};
|
|
|
|
//-------------------------------------
|
|
|
|
#define HD_BLOCK_SIZE 512
|
|
|
|
#define UNIDISK35_800K_SIZE (800*1024) // UniDisk 3.5"
|
|
#define HARDDISK_32M_SIZE (HD_BLOCK_SIZE * 65536)
|
|
|
|
#define DEFAULT_VOLUME_NUMBER 254
|
|
|
|
class CImageBase
|
|
{
|
|
public:
|
|
CImageBase(void);
|
|
virtual ~CImageBase(void);
|
|
|
|
virtual bool Boot(ImageInfo* pImageInfo) { return false; }
|
|
virtual eDetectResult Detect(const LPBYTE pImage, const DWORD dwImageSize, const TCHAR* pszExt) = 0;
|
|
virtual void Read(ImageInfo* pImageInfo, const float phase, LPBYTE pTrackImageBuffer, int* pNibbles, UINT* pBitCount, bool enhanceDisk) { }
|
|
virtual bool Read(ImageInfo* pImageInfo, UINT nBlock, LPBYTE pBlockBuffer) { return false; }
|
|
virtual void Write(ImageInfo* pImageInfo, const float phase, LPBYTE pTrackImageBuffer, int nNibbles) { }
|
|
virtual bool Write(ImageInfo* pImageInfo, UINT nBlock, LPBYTE pBlockBuffer) { return false; }
|
|
|
|
virtual bool AllowBoot(void) { return false; } // Only: APL and PRG
|
|
virtual bool AllowRW(void) { return true; } // All but: APL and PRG
|
|
virtual bool AllowCreate(void) { return false; } // WE CREATE ONLY DOS ORDER (DO) OR 6656-NIBBLE (NIB) FORMAT FILES
|
|
virtual UINT GetImageSizeForCreate(void) { _ASSERT(0); return (UINT)-1; }
|
|
|
|
virtual eImageType GetType(void) = 0;
|
|
virtual const char* GetCreateExtensions(void) = 0;
|
|
virtual const char* GetRejectExtensions(void) = 0;
|
|
|
|
bool WriteImageHeader(ImageInfo* pImageInfo, LPBYTE pHdr, const UINT hdrSize);
|
|
void SetVolumeNumber(const BYTE uVolumeNumber) { m_uVolumeNumber = uVolumeNumber; }
|
|
bool IsValidImageSize(const DWORD uImageSize);
|
|
|
|
// To accurately convert a half phase (quarter track) back to a track (round half tracks down), use: ceil(phase)/2, eg:
|
|
// . phase=4,+1 half phase = phase 4.5 => ceil(4.5)/2 = track 2 (OK)
|
|
// . phase=4,-1 half phase = phase 3.5 => ceil(3.5)/2 = track 2 (OK)
|
|
UINT PhaseToTrack(const float phase) { return ((UINT)ceil(phase)) >> 1; }
|
|
|
|
enum SectorOrder_e {eProDOSOrder, eDOSOrder, eSIMSYSTEMOrder, NUM_SECTOR_ORDERS};
|
|
|
|
protected:
|
|
bool ReadTrack(ImageInfo* pImageInfo, const int nTrack, LPBYTE pTrackBuffer, const UINT uTrackSize);
|
|
bool WriteTrack(ImageInfo* pImageInfo, const int nTrack, LPBYTE pTrackBuffer, const UINT uTrackSize);
|
|
bool ReadBlock(ImageInfo* pImageInfo, const int nBlock, LPBYTE pBlockBuffer);
|
|
bool WriteBlock(ImageInfo* pImageInfo, const int nBlock, LPBYTE pBlockBuffer);
|
|
bool WriteImageData(ImageInfo* pImageInfo, LPBYTE pSrcBuffer, const UINT uSrcSize, const long offset);
|
|
|
|
LPBYTE Code62(int sector);
|
|
void Decode62(LPBYTE imageptr);
|
|
void DenibblizeTrack (LPBYTE trackimage, SectorOrder_e SectorOrder, int nibbles);
|
|
DWORD NibblizeTrack (LPBYTE trackimagebuffer, SectorOrder_e SectorOrder, int track);
|
|
void SkewTrack (const int nTrack, const int nNumNibbles, const LPBYTE pTrackImageBuffer);
|
|
|
|
public:
|
|
UINT m_uNumTracksInImage; // Init'd by CDiskImageHelper.Detect()/GetImageForCreation() & possibly updated by IsValidImageSize()
|
|
|
|
protected:
|
|
static BYTE ms_DiskByte[0x40];
|
|
static BYTE ms_SectorNumber[NUM_SECTOR_ORDERS][NUM_SECTORS];
|
|
BYTE m_uVolumeNumber;
|
|
LPBYTE m_pWorkBuffer;
|
|
};
|
|
|
|
//-------------------------------------
|
|
|
|
class CHdrHelper
|
|
{
|
|
public:
|
|
virtual eDetectResult DetectHdr(LPBYTE& pImage, DWORD& dwImageSize, DWORD& dwOffset) = 0;
|
|
virtual UINT GetMaxHdrSize(void) = 0;
|
|
protected:
|
|
CHdrHelper(void) {}
|
|
virtual ~CHdrHelper(void) {}
|
|
};
|
|
|
|
class CMacBinaryHelper : public CHdrHelper
|
|
{
|
|
public:
|
|
CMacBinaryHelper(void) {}
|
|
virtual ~CMacBinaryHelper(void) {}
|
|
virtual eDetectResult DetectHdr(LPBYTE& pImage, DWORD& dwImageSize, DWORD& dwOffset);
|
|
virtual UINT GetMaxHdrSize(void) { return uMacBinHdrSize; }
|
|
|
|
private:
|
|
static const UINT uMacBinHdrSize = 128;
|
|
};
|
|
|
|
// http://apple2.org.za/gswv/a2zine/Docs/DiskImage_2MG_Info.txt
|
|
|
|
#pragma pack(push)
|
|
#pragma pack(1) // Ensure Header2IMG & WOZ structs are packed
|
|
|
|
#pragma warning(push)
|
|
#pragma warning(disable: 4200) // Allow zero-sized array in struct
|
|
|
|
|
|
class C2IMGHelper : public CHdrHelper
|
|
{
|
|
public:
|
|
C2IMGHelper(const bool bIsFloppy) : m_bIsFloppy(bIsFloppy) {}
|
|
virtual ~C2IMGHelper(void) {}
|
|
virtual eDetectResult DetectHdr(LPBYTE& pImage, DWORD& dwImageSize, DWORD& dwOffset);
|
|
virtual UINT GetMaxHdrSize(void) { return sizeof(Header2IMG); }
|
|
BYTE GetVolumeNumber(void);
|
|
bool IsLocked(void);
|
|
bool IsImageFormatDOS33(void) { return m_Hdr.ImageFormat == e2IMGFormatDOS33; }
|
|
bool IsImageFormatProDOS(void) { return m_Hdr.ImageFormat == e2IMGFormatProDOS; }
|
|
|
|
private:
|
|
static const UINT32 FormatID_2IMG = 'GMI2'; // '2IMG'
|
|
static const UINT32 Creator_2IMG_AppleWin = '1vWA'; // 'AWv1'
|
|
static const USHORT Version_2IMG_AppleWin = 1;
|
|
|
|
enum ImageFormat2IMG_e { e2IMGFormatDOS33=0, e2IMGFormatProDOS, e2IMGFormatNIBData };
|
|
|
|
struct Flags2IMG
|
|
{
|
|
UINT32 VolumeNumber : 8; // bits7-0
|
|
UINT32 bDOS33VolumeNumberValid : 1;
|
|
UINT32 Pad : 22;
|
|
UINT32 bDiskImageLocked : 1; // bit31
|
|
};
|
|
|
|
struct Header2IMG
|
|
{
|
|
UINT32 FormatID; // "2IMG"
|
|
UINT32 CreatorID;
|
|
USHORT HeaderSize;
|
|
USHORT Version;
|
|
union
|
|
{
|
|
ImageFormat2IMG_e ImageFormat;
|
|
UINT32 ImageFormatRaw;
|
|
};
|
|
union
|
|
{
|
|
Flags2IMG Flags;
|
|
UINT32 FlagsRaw;
|
|
};
|
|
UINT32 NumBlocks; // The number of 512-byte blocks in the disk image
|
|
UINT32 DiskDataOffset;
|
|
UINT32 DiskDataLength;
|
|
UINT32 CommentOffset; // Optional
|
|
UINT32 CommentLength; // Optional
|
|
UINT32 CreatorOffset; // Optional
|
|
UINT32 CreatorLength; // Optional
|
|
BYTE Padding[16];
|
|
};
|
|
|
|
Header2IMG m_Hdr;
|
|
bool m_bIsFloppy;
|
|
};
|
|
|
|
class CWOZHelper : public CHdrHelper
|
|
{
|
|
public:
|
|
CWOZHelper() :
|
|
m_pInfo(NULL)
|
|
{}
|
|
virtual ~CWOZHelper(void) {}
|
|
virtual eDetectResult DetectHdr(LPBYTE& pImage, DWORD& dwImageSize, DWORD& dwOffset) { _ASSERT(0); return eMismatch; }
|
|
virtual UINT GetMaxHdrSize(void) { return sizeof(WOZHeader); }
|
|
eDetectResult ProcessChunks(ImageInfo* pImageInfo, DWORD& dwOffset);
|
|
bool IsWriteProtected(void) { return m_pInfo->v1.writeProtected == 1; }
|
|
BYTE GetOptimalBitTiming(void) { return (m_pInfo->v1.version >= 2) ? m_pInfo->optimalBitTiming : InfoChunkv2::optimalBitTiming5_25; }
|
|
UINT GetMaxNibblesPerTrack(void) { return (m_pInfo->v1.version >= 2) ? m_pInfo->largestTrack*CWOZHelper::BLOCK_SIZE : WOZ1_TRACK_SIZE; }
|
|
BYTE GetBootSectorFormat(void) { return (m_pInfo->v1.version >= 2) ? m_pInfo->bootSectorFormat : bootUnknown; }
|
|
void InvalidateInfo(void) { m_pInfo = NULL; }
|
|
BYTE* CreateEmptyDisk(DWORD& size);
|
|
#if _DEBUG
|
|
BYTE* CreateEmptyDiskv1(DWORD& size);
|
|
#endif
|
|
|
|
static const UINT32 ID1_WOZ1 = '1ZOW'; // 'WOZ1'
|
|
static const UINT32 ID1_WOZ2 = '2ZOW'; // 'WOZ2'
|
|
static const UINT32 ID2 = 0x0A0D0AFF;
|
|
|
|
struct WOZHeader
|
|
{
|
|
UINT32 id1; // 'WOZ1' or 'WOZ2'
|
|
UINT32 id2;
|
|
UINT32 crc32;
|
|
};
|
|
|
|
static const UINT32 MAX_TRACKS_5_25 = 40;
|
|
static const UINT32 MAX_QUARTER_TRACKS_5_25 = MAX_TRACKS_5_25 * 4;
|
|
static const UINT32 WOZ1_TRACK_SIZE = 6656; // 0x1A00
|
|
static const UINT32 WOZ1_TRK_OFFSET = 6646;
|
|
static const UINT32 EMPTY_TRACK_SIZE = 6400; // $C.5 blocks
|
|
static const UINT32 BLOCK_SIZE = 512;
|
|
static const BYTE TMAP_TRACK_EMPTY = 0xFF;
|
|
static const UINT16 TRK_DEFAULT_BLOCK_COUNT_5_25 = 13; // $D is default for TRKv2.blockCount
|
|
|
|
static const BYTE bootUnknown = 0;
|
|
static const BYTE bootSector16 = 1;
|
|
static const BYTE bootSector13 = 2;
|
|
static const BYTE bootSectorBoth = 3;
|
|
|
|
struct WOZChunkHdr
|
|
{
|
|
UINT32 id;
|
|
UINT32 size;
|
|
};
|
|
|
|
struct Tmap
|
|
{
|
|
BYTE tmap[MAX_QUARTER_TRACKS_5_25];
|
|
};
|
|
|
|
struct TRKv1
|
|
{
|
|
UINT16 bytesUsed;
|
|
UINT16 bitCount;
|
|
UINT16 splicePoint;
|
|
BYTE spliceNibble;
|
|
BYTE spliceBitCount;
|
|
UINT16 reserved;
|
|
};
|
|
|
|
struct TRKv2
|
|
{
|
|
UINT16 startBlock; // relative to start of file
|
|
UINT16 blockCount; // number of blocks for this BITS data
|
|
UINT32 bitCount;
|
|
};
|
|
|
|
struct Trks
|
|
{
|
|
TRKv2 trks[MAX_QUARTER_TRACKS_5_25];
|
|
BYTE bits[0]; // bits[] starts at offset 3 x BLOCK_SIZE = 1536
|
|
};
|
|
|
|
private:
|
|
static const UINT32 INFO_CHUNK_ID = 'OFNI'; // 'INFO'
|
|
static const UINT32 TMAP_CHUNK_ID = 'PAMT'; // 'TMAP'
|
|
static const UINT32 TRKS_CHUNK_ID = 'SKRT'; // 'TRKS'
|
|
static const UINT32 WRIT_CHUNK_ID = 'TIRW'; // 'WRIT' - WOZv2
|
|
static const UINT32 META_CHUNK_ID = 'ATEM'; // 'META'
|
|
static const UINT32 INFO_CHUNK_SIZE = 60; // Fixed size for both WOZv1 & WOZv2
|
|
|
|
struct InfoChunk
|
|
{
|
|
BYTE version;
|
|
BYTE diskType;
|
|
BYTE writeProtected; // 1 = Floppy is write protected
|
|
BYTE synchronized; // 1 = Cross track sync was used during imaging
|
|
BYTE cleaned; // 1 = MC3470 fake bits have been removed
|
|
BYTE creator[32]; // Name of software that created the WOZ file.
|
|
// String in UTF-8. No BOM. Padded to 32 bytes
|
|
// using space character (0x20).
|
|
|
|
static const BYTE diskType5_25 = 1;
|
|
static const BYTE diskType3_5 = 2;
|
|
};
|
|
|
|
struct InfoChunkv2
|
|
{
|
|
InfoChunk v1;
|
|
BYTE diskSides; // 5.25 will always be 1; 3.5 can be 1 or 2
|
|
BYTE bootSectorFormat;
|
|
BYTE optimalBitTiming; // in 125ns increments (And a standard bit rate for 5.25 disk would be 32 (4us))
|
|
UINT16 compatibleHardware;
|
|
UINT16 requiredRAM; // in K (1024 bytes)
|
|
UINT16 largestTrack; // in blocks (512 bytes)
|
|
|
|
static const BYTE optimalBitTiming5_25 = 32;
|
|
};
|
|
|
|
InfoChunkv2* m_pInfo; // NB. image-specific - only valid during Detect(), which calls InvalidateInfo() when done
|
|
|
|
//
|
|
|
|
struct WOZEmptyImage525 // 5.25"
|
|
{
|
|
WOZHeader hdr;
|
|
|
|
WOZChunkHdr infoHdr;
|
|
InfoChunkv2 info;
|
|
BYTE infoPadding[INFO_CHUNK_SIZE-sizeof(InfoChunkv2)];
|
|
|
|
WOZChunkHdr tmapHdr;
|
|
Tmap tmap;
|
|
|
|
WOZChunkHdr trksHdr;
|
|
Trks trks;
|
|
};
|
|
|
|
struct WOZv1EmptyImage525 // 5.25"
|
|
{
|
|
WOZHeader hdr;
|
|
|
|
WOZChunkHdr infoHdr;
|
|
InfoChunk info;
|
|
BYTE infoPadding[INFO_CHUNK_SIZE-sizeof(InfoChunk)];
|
|
|
|
WOZChunkHdr tmapHdr;
|
|
Tmap tmap;
|
|
|
|
WOZChunkHdr trksHdr;
|
|
};
|
|
};
|
|
|
|
#pragma warning(pop)
|
|
#pragma pack(pop)
|
|
|
|
//-------------------------------------
|
|
|
|
class CImageHelperBase
|
|
{
|
|
public:
|
|
CImageHelperBase(const bool bIsFloppy) :
|
|
m_2IMGHelper(bIsFloppy),
|
|
m_Result2IMG(eMismatch),
|
|
m_WOZHelper()
|
|
{
|
|
}
|
|
virtual ~CImageHelperBase(void)
|
|
{
|
|
for (UINT i=0; i<m_vecImageTypes.size(); i++)
|
|
delete m_vecImageTypes[i];
|
|
}
|
|
|
|
ImageError_e Open(LPCTSTR pszImageFilename, ImageInfo* pImageInfo, const bool bCreateIfNecessary, std::string& strFilenameInZip);
|
|
void Close(ImageInfo* pImageInfo);
|
|
bool WOZUpdateInfo(ImageInfo* pImageInfo, DWORD& dwOffset);
|
|
|
|
virtual CImageBase* Detect(LPBYTE pImage, DWORD dwSize, const TCHAR* pszExt, DWORD& dwOffset, ImageInfo* pImageInfo) = 0;
|
|
virtual CImageBase* GetImageForCreation(const TCHAR* pszExt, DWORD* pCreateImageSize) = 0;
|
|
virtual UINT GetMaxImageSize(void) = 0;
|
|
virtual UINT GetMinDetectSize(const UINT uImageSize, bool* pTempDetectBuffer) = 0;
|
|
|
|
protected:
|
|
ImageError_e CheckGZipFile(LPCTSTR pszImageFilename, ImageInfo* pImageInfo);
|
|
ImageError_e CheckZipFile(LPCTSTR pszImageFilename, ImageInfo* pImageInfo, std::string& strFilenameInZip);
|
|
ImageError_e CheckNormalFile(LPCTSTR pszImageFilename, ImageInfo* pImageInfo, const bool bCreateIfNecessary);
|
|
void GetCharLowerExt(TCHAR* pszExt, LPCTSTR pszImageFilename, const UINT uExtSize);
|
|
void GetCharLowerExt2(TCHAR* pszExt, LPCTSTR pszImageFilename, const UINT uExtSize);
|
|
void SetImageInfo(ImageInfo* pImageInfo, FileType_e fileType, DWORD dwOffset, CImageBase* pImageType, DWORD dwSize);
|
|
|
|
UINT GetNumImages(void) { return m_vecImageTypes.size(); };
|
|
CImageBase* GetImage(UINT uIndex) { _ASSERT(uIndex<GetNumImages()); return m_vecImageTypes[uIndex]; }
|
|
CImageBase* GetImage(eImageType Type)
|
|
{
|
|
if (Type == eImageUNKNOWN)
|
|
return NULL;
|
|
for (UINT i=0; i<GetNumImages(); i++)
|
|
{
|
|
if (m_vecImageTypes[i]->GetType() == Type)
|
|
return m_vecImageTypes[i];
|
|
}
|
|
_ASSERT(0);
|
|
return NULL;
|
|
}
|
|
|
|
protected:
|
|
typedef std::vector<CImageBase*> VECIMAGETYPE;
|
|
VECIMAGETYPE m_vecImageTypes;
|
|
|
|
C2IMGHelper m_2IMGHelper;
|
|
eDetectResult m_Result2IMG;
|
|
CWOZHelper m_WOZHelper;
|
|
};
|
|
|
|
//-------------------------------------
|
|
|
|
class CDiskImageHelper : public CImageHelperBase
|
|
{
|
|
public:
|
|
CDiskImageHelper(void);
|
|
virtual ~CDiskImageHelper(void) {}
|
|
|
|
virtual CImageBase* Detect(LPBYTE pImage, DWORD dwSize, const TCHAR* pszExt, DWORD& dwOffset, ImageInfo* pImageInfo);
|
|
virtual CImageBase* GetImageForCreation(const TCHAR* pszExt, DWORD* pCreateImageSize);
|
|
virtual UINT GetMaxImageSize(void);
|
|
virtual UINT GetMinDetectSize(const UINT uImageSize, bool* pTempDetectBuffer);
|
|
|
|
UINT GetNumTracksInImage(CImageBase* pImageType) { return pImageType->m_uNumTracksInImage; }
|
|
void SetNumTracksInImage(CImageBase* pImageType, UINT uNumTracks) { pImageType->m_uNumTracksInImage = uNumTracks; }
|
|
|
|
private:
|
|
void SkipMacBinaryHdr(LPBYTE& pImage, DWORD& dwSize, DWORD& dwOffset);
|
|
|
|
private:
|
|
CMacBinaryHelper m_MacBinaryHelper;
|
|
};
|
|
|
|
//-------------------------------------
|
|
|
|
class CHardDiskImageHelper : public CImageHelperBase
|
|
{
|
|
public:
|
|
CHardDiskImageHelper(void);
|
|
virtual ~CHardDiskImageHelper(void) {}
|
|
|
|
virtual CImageBase* Detect(LPBYTE pImage, DWORD dwSize, const TCHAR* pszExt, DWORD& dwOffset, ImageInfo* pImageInfo);
|
|
virtual CImageBase* GetImageForCreation(const TCHAR* pszExt, DWORD* pCreateImageSize);
|
|
virtual UINT GetMaxImageSize(void);
|
|
virtual UINT GetMinDetectSize(const UINT uImageSize, bool* pTempDetectBuffer);
|
|
};
|