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vt.h

#ifndef VT_H
#define VT_H

#include "misc.h"

#define W               40
#define H               25
#define BAD_CHAR        0xb8    /* substitute for chars with bad parity */

extern int alevt_debug;

struct vt_event
{
    int type;
    void *resource;     /* struct xio_win *, struct vbi *, ... */
    int i1, i2, i3, i4;
    void *p1;
};

#define EV_CLOSE        1
#define EV_KEY          2       /* i1:KEY_xxx  i2:shift-flag */
#define EV_MOUSE        3       /* i1:button  i2:shift-flag i3:x  i4:y */
#define EV_SELECTION    4       /* i1:len  p1:data */
#define EV_PAGE         5       /* p1:vt_page   i1:query-flag */
#define EV_HEADER       6       /* i1:pgno  i2:subno  i3:flags  p1:data */
#define EV_XPACKET      7       /* i1:mag  i2:pkt  i3:errors  p1:data */
#define EV_RESET        8       /* ./. */
#define EV_TIMER        9       /* ./. */

#define KEY_F(i)        (1000+i)
#define KEY_LEFT        2001
#define KEY_RIGHT       2002
#define KEY_UP          2003
#define KEY_DOWN        2004
#define KEY_PUP         2005
#define KEY_PDOWN       2006
#define KEY_DEL         2007
#define KEY_INS         2008

struct vt_page
{
    int pgno, subno;    /* the wanted page number */
    int lang;           /* language code */
    int flags;          /*  misc flags (see PG_xxx below) */
    int errors;         /*  number of single bit errors in page */
    u32 lines;          /*  1 bit for each line received */
    u8 data[25][40];    /*  page contents */
    int flof;           /*  page has FastText links */
    struct {
        int pgno;
        int subno;
    } link[6];          /*  FastText links (FLOF) */
};

#define PG_SUPPHEADER   0x01    /*  C7  row 0 is not to be displayed */
#define PG_UPDATE       0x02    /*  C8  row 1-28 has modified (editors flag) */
#define PG_OUTOFSEQ     0x04    /*  C9  page out of numerical order */
#define PG_NODISPLAY    0x08    /*  C10 rows 1-24 is not to be displayed */
#define PG_MAGSERIAL    0x10    /*  C11 serial trans. (any pkt0 terminates page) */
#define PG_ERASE        0x20    /*  C4  clear previously stored lines */
#define PG_NEWSFLASH    0x40    /*  C5  box it and insert into normal video pict. */
#define PG_SUBTITLE     0x80    /*  C6  box it and insert into normal video pict. */
/*  my flags */
#define PG_ACTIVE       0x100   /*  currently fetching this page */

#define ANY_SUB         0x3f7f  /*  universal subpage number */

#endif

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