mirror of https://github.com/JorjBauer/aiie.git
139 lines
4.1 KiB
C++
139 lines
4.1 KiB
C++
#ifndef __WOZ_H
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#define __WOZ_H
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#include <stdio.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <stdbool.h>
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#include "nibutil.h"
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#include "disktypes.h"
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#define DUMP_TRACK 0x01
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#define DUMP_QTMAP 0x02
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#define DUMP_QTCRC 0x04
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// these all require DUMP_TRACK:
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#define DUMP_TOFILE 0x10
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#define DUMP_SECTOR 0x20
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#define DUMP_RAWTRACK 0x40
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#define DUMP_ORDEREDSECTOR 0x80
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typedef struct _diskInfo {
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uint8_t version; // Woz format version #
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uint8_t diskType; // 1 = 5.25"; 2 = 3.5"
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uint8_t writeProtected; // 1 = true
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uint8_t synchronized; // were tracks written with cross-track sync?
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uint8_t cleaned; // were MC3470 "fake bits" removed?
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char creator[33]; // 32 chars of creator string and one terminator
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uint8_t diskSides; // always 1 for a 5.25" disk
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uint8_t bootSectorFormat; // 0=Unknown; 1=16-sector; 2=13-sector; 3=both
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uint8_t optimalBitTiming; // 125-nS increments; standard == 32 (4uS)
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uint16_t compatHardware; // 0=unknown compatability
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uint16_t requiredRam; // value in K. 0 = unknown
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uint16_t largestTrack; // # of 512-byte blocks used for largest track
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} diskInfo;
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typedef struct _trackInfo {
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uint16_t startingBlock; // v2
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uint32_t startingByte; // v1
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uint16_t blockCount;
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uint32_t bitCount;
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uint8_t *trackData;
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bool dirty;
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} trackInfo;
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class Woz {
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public:
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Woz(bool verbose, uint8_t dumpflags);
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~Woz();
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bool readFile(const char *filename, bool preloadTracks, uint8_t forceType = T_AUTO);
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bool writeFile(const char *filename, uint8_t forceType = T_AUTO);
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void advanceBitStream(uint8_t datatrack);
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uint8_t getNextWozBit(uint8_t datatrack);
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void dumpInfo();
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bool isSynchronized();
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uint8_t dataTrackNumberForQuarterTrack(uint16_t qt);
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bool flush();
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bool decodeWozTrackToDsk(uint8_t phystrack, uint8_t subtype, uint8_t sectorData[256*16]);
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bool decodeWozTrackSector(uint8_t phystrack, uint8_t sector, uint8_t dataOut[256]);
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bool encodeWozTrackSector(uint8_t phystrack, uint8_t sector, uint8_t dataIn[256]);
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protected:
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bool writeWozFile(const char *filename, uint8_t subtype);
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bool writeWozFile(int fdout, uint8_t subtype);
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bool writeDskFile(const char *filename, uint8_t subtype);
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bool writeDskFile(int fdout, uint8_t subtype);
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bool writeNibFile(const char *filename);
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bool writeNibFile(int fdout);
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uint8_t nextDiskBit(uint8_t datatrack);
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uint8_t nextDiskByte(uint8_t datatrack);
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void writeDiskByte(uint8_t datatrack, uint8_t b);
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protected:
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bool readWozFile(const char *filename, bool preloadTracks);
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bool readDskFile(const char *filename, bool preloadTracks, uint8_t subtype);
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bool readNibFile(const char *filename, bool preloadTracks);
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bool decodeWozTrackToNibFromDataTrack(uint8_t dataTrack, nibSector sectorData[16]);
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uint8_t fakeBit();
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bool writeNextWozBit(uint8_t datatrack, uint8_t bit);
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bool writeNextWozByte(uint8_t datatrack, uint8_t b);
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bool parseTRKSChunk(uint32_t chunkSize);
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bool parseTMAPChunk(uint32_t chunkSize);
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bool parseInfoChunk(uint32_t chunkSize);
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bool parseMetaChunk(uint32_t chunkSize);
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bool writeInfoChunk(uint8_t version, int fdout);
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bool writeTMAPChunk(uint8_t version, int fdout);
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bool writeTRKSChunk(uint8_t version, int fdout);
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bool readWozDataTrack(uint8_t datatrack);
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bool writeNibSectorDataToDataTrack(uint8_t dataTrack, uint8_t sector, uint8_t nibData[343]);
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bool readNibSectorDataFromDataTrack(uint8_t dataTrack, uint8_t sector, nibSector *sectorData);
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bool loadMissingTrackFromImage(uint8_t datatrack);
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bool checksumWozDataTrack(uint8_t datatrack, uint32_t *retCRC);
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void _initInfo();
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protected:
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int fd;
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protected:
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uint8_t imageType;
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bool verbose;
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uint8_t dumpflags;
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bool autoFlushTrackData;
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uint8_t quarterTrackMap[40*4];
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diskInfo di;
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trackInfo tracks[160];
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// cursor for track enumeration
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uint32_t trackPointer;
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uint32_t trackBitCounter;
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uint8_t trackByte;
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uint8_t trackByteFromDataTrack;
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uint8_t trackBitIdx;
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uint8_t trackLoopCounter;
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char *metaData;
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uint8_t randData, randPtr;
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};
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#endif
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