#define XDPI 300 /* HP DeskJet horizontal dots/inch */
#define XPSIZE 8 /* horizontal paper size in inches */
#define XSIZE (((XDPI*XPSIZE+2*HOST_WORD_SIZE-1)/\
(2*HOST_WORD_SIZE))*(2*HOST_WORD_SIZE))
/* number of horizontal dots; */
/* MUST BE multiple of */
/* 2*HOST_WORD_SIZE */
#define XWORDS ((XSIZE + HOST_WORD_SIZE - 1)/HOST_WORD_SIZE)
/* number of words in rows */
/* of bitmap array */
#define YDPI 300 /* HP DeskJet vertical dots/inch */
#define YPSIZE 11 /* vertical paper size in inches */
#define YSIZE (YDPI*YPSIZE) /* number of vertical dots */
/* The printer bit map (must have an even number of columns). */
void
outline(pbit)
UNSIGN32 *pbit; /* pointer to raster line */
/*************************************************************************
Use machine-specific coding here for efficiency. For TOPS-20, we encode
9 bytes from every pair of 36-bit words.
For each raster line on the paper, the Laser Jet expects a binary 8-bit
byte stream of the form
where each byte contains, in order from high to low bit, a left-to-right
bit pattern. No end-of-line marker is required; the escape sequence
automatically causes a new raster line to be started.
*************************************************************************/
{
register UNSIGN32 w_even,w_odd;
register UNSIGN32 *p;
register BYTE *pbuf;
BYTE buf[1+(XSIZE+7)/8]; /* space for EOS + n 8-bit bytes */
register INT16 i,last_word;
#if (IBM_PC_MICROSOFT & !OS_IBMOS2)
for (last_word = XBIT - 1;
(last_word >= 1) && (*(UNSIGN32*)normaddr(pbit,last_word) == 0);
--last_word)
; /* trim white space a word at a time */
#else
p = pbit + XBIT - 1; /* point to last word on line */
for (last_word = XBIT - 1; (last_word >= 1) && (*p == 0); --last_word)
--p; /* trim white space a word at a time */
#endif
p = pbit;
pbuf = &buf[0];
for (i = 0; i <= last_word; i += 2) /* loop over trimmed raster */
{
w_even = (*p++);
w_odd = (*p++);
last_word |= 1; /* make last_word ODD */
for (i = ((last_word+1)*HOST_WORD_SIZE)/8;
(*(--pbuf) == '\0') && (i > 1); --i)
; /* trim trailing zero bytes, leaving at least one */
last_word = i;
/* Raster header for DeskJet ????? */
OUTF("\033*b%dW",(int)last_word);
pbuf = &buf[0]; /* cannot use fprintf with %s format because of
NUL's in string, and it is slow anyway */
for (i = 0; i < last_word; ++pbuf,++i)
OUTC(*pbuf);
}
for (k3 = 0; k3 < XBIT; (k3 += 7, ++p))
{ /* print bitmap 7 words at a pass */
k1 = k3;
k2 = MIN(XBIT,k1+7);
(void)printf("prtbmap()...bitmap words %d..%d",k1,k2-1);
NEWLINE(stdout);
(void)printf(" ");
for (k = k1; k < k2; ++k)
(void)printf("%10d",k*HOST_WORD_SIZE);
NEWLINE(stdout);
for (j = YBIT-1; j >= 0; --j)
{
p = BITMAP(j,0);
for (k = 0; k < XBIT; (++k,++p))
{
if (*p) /* print non-blank raster line */
{
p = BITMAP(j,k1);
(void)printf("%5d:",j);
for (k = k1; k < k2; (++k,++p))
(void)printf(" %09lx",*p);
NEWLINE(stdout);
break; /* exit loop over k */
}
}
}
}
}
(void)clearerr(plotfp);
#if ZAPTHISOUT
k = -1; /* find top non-zero raster */
for (j = YBIT-1; (j > 0) && (k < 0); --j) /* loop over raster lines */
{
p = BITMAP(j,XBIT-1);
for (k = XBIT - 1; ((k >= 0) && (*p == 0)); --k)
--p; /* trim white space */
}
ytop = j;
#else
ytop = YBIT-1;
#endif
k = -1; /* find bottom non-zero raster */
for (j = 0; (j < ytop) && (k < 0); ++j) /* loop over raster lines */
{
#if IBM_PC_MICROSOFT
for (k = XBIT - 1;((k >= 0) && (*BITMAP(j,k) == 0));--k)
; /* trim white space */
#else
p = BITMAP(j,XBIT-1);
for (k = XBIT - 1; ((k >= 0) && (*p == 0)); --k)
--p; /* trim white space */
#endif
}
ybottom = MAX(0,j-1);
#if ZAPTHISOUT
for (j = ytop; (j >= ybottom); --j)
{
OUTF("%5d:",(int)j);
for (k = 0; k < XBIT; ++k)
OUTF(" %9x",*BITMAP(j,k));
NEWLINE(plotfp);
}
#endif
OUTF("\033&l%dX",(int)copies); /* number of copies */
OUTS("\033*r1A"); /* start plot at current position */
for (j = ytop; (j >= ybottom) ; --j) /* loop over raster lines */
outline(BITMAP(j,0));
OUTS("\033*rB\f"); /* end raster graphics, eject page */
(void)fflush(plotfp);
if (DISKFULL(plotfp))
(void)fatal("Output error -- disk storage probably full");
}
