mirror of https://github.com/JorjBauer/aiie.git
90 lines
2.6 KiB
C++
90 lines
2.6 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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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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} trackInfo;
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class Woz {
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public:
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Woz();
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~Woz();
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bool readFile(const char *filename, uint8_t forceType = T_AUTO);
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bool writeFile(uint8_t version, const char *filename);
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uint8_t getNextWozBit(uint8_t track);
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uint8_t nextDiskBit(uint8_t track);
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uint8_t nextDiskByte(uint8_t track);
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bool decodeWozTrackToNib(uint8_t track, nibSector sectorData[16]);
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bool decodeWozTrackToDsk(uint8_t track, uint8_t subtype, uint8_t sectorData[256*16]);
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void dumpInfo();
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bool isSynchronized();
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uint8_t trackNumberForQuarterTrack(uint16_t qt);
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private:
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bool readWozFile(const char *filename);
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bool readDskFile(const char *filename, uint8_t subtype);
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bool readNibFile(const char *filename);
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uint8_t fakeBit();
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bool parseTRKSChunk(FILE *f, uint32_t chunkSize);
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bool parseTMAPChunk(FILE *f, uint32_t chunkSize);
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bool parseInfoChunk(FILE *f, uint32_t chunkSize);
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bool parseMetaChunk(FILE *f, uint32_t chunkSize);
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bool writeInfoChunk(uint8_t version, FILE *f);
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bool writeTMAPChunk(uint8_t version, FILE *f);
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bool writeTRKSChunk(uint8_t version, FILE *f);
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bool readQuarterTrackData(FILE *f, uint8_t quartertrack);
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bool readSectorData(uint8_t track, uint8_t sector, nibSector *sectorData);
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void _initInfo();
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protected:
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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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uint8_t trackByte;
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uint8_t trackBitIdx;
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uint8_t trackLoopCounter;
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char *metaData;
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};
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#endif
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