1541t64.h

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/*
 *  1541t64.h - 1541 emulation in .t64/LYNX file
 *
 *  Frodo (C) 1994-1997 Christian Bauer
 */

#ifndef _1541T64_H
#define _1541T64_H

#include "IEC.h"


// Information for file inside a .t64 file
typedef struct {
        char name[17];          // File name, PETSCII
        uint8 type;                     // File type
        uint8 sa_lo, sa_hi;     // Start address
        int offset;                     // Offset of first byte in .t64 file
        int length;                     // Length of file
} FileInfo;


class T64Drive : public Drive {
public:
        T64Drive(IEC *iec, char *filepath);
        virtual ~T64Drive();
        virtual uint8 Open(int channel, char *filename);
        virtual uint8 Close(int channel);
        virtual uint8 Read(int channel, uint8 *byte);
        virtual uint8 Write(int channel, uint8 byte, bool eoi);
        virtual void Reset(void);

private:
        void open_close_t64_file(char *t64name);
        bool parse_t64_file(void);
        bool parse_lynx_file(void);
        uint8 open_file(int channel, char *filename);
        uint8 open_directory(int channel, char *filename);
        void convert_filename(char *srcname, char *destname, int *filemode, int *filetype);
        bool find_first_file(char *name, int type, int *num);
        void close_all_channels(void);
        void execute_command(char *command);
        void cht64_cmd(char *t64path);
        uint8 conv_from_64(uint8 c, bool map_slash);

        FILE *the_file;                 // File pointer for .t64 file
        bool is_lynx;                   // Flag: .t64 file is really a LYNX archive

        char orig_t64_name[256]; // Original path of .t64 file
        char dir_title[16];             // Directory title
        FILE *file[16];                 // File pointers for each of the 16 channels (all temporary files)

        int num_files;                  // Number of files in .t64 file and in file_info array
        FileInfo *file_info;    // Pointer to array of file information structs for each file

        char cmd_buffer[44];    // Buffer for incoming command strings
        int cmd_len;                    // Length of received command

        uint8 read_char[16];    // Buffers for one-byte read-ahead
};

#endif

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