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|
/* -*-C-*- dviimp.c */
/*-->dviimp*/
/**********************************************************************/
/******************************* dviimp *******************************/
/**********************************************************************/
#include "dvihead.h"
/***********************************************************************
***********************************************************************/
/**********************************************************************/
/************************ Device Definitions ************************/
/**********************************************************************/
/* All output-device-specific definitions go here. This section must
be changed when modifying a dvi driver for use on a new device */
#undef IMPRESS
#define IMPRESS 1 /* conditional compilation flag */
#define VERSION_NO "2.10" /* DVI driver version number */
#define DEVICE_ID "imPRESS [Imagen laser printer family]"
/* this string is printed at runtime */
#define OUTFILE_EXT "imp"
#define BYTE_SIZE 8 /* output file byte size */
#undef STDRES
#define STDRES 1 /* to get standard font resolution */
#define MAXLINE 4096 /* maximum input file line size */
/* it is needed only in special() */
#define XDPI 300 /* horizontal dots/inch */
#define XPSIZE 9 /* 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 YDPI 300 /* vertical dots/inch */
#define YPSIZE 11 /* vertical paper size in inches */
#define YSIZE (YDPI*YPSIZE) /* number of vertical dots */
/* The following values may be printer model dependent, or even printer
serial number dependent. These values were obtained with the LaTeX
TESTPAGE.TEX file for an Imagen 3320 printer; they express that fact
that the real (0,0) is 15 dots above and 3 dots to the left of the top
left corner of an 8.5in x 11in page. */
#define XORIGIN -3 /* measured pixel coordinates of */
#define YORIGIN -15 /* page origin (should be at (0,0)) */
/***********************************************************************
Define macros for imPRESS commands.
With the exception of the function "loadchar", which requires extra
data, and the function fillrect, for which the macro definition was too
complicated for the compiler, NO escape sequences appear anywhere else
in the text.
***********************************************************************/
#define IM_SABSH (BYTE)135 /* IM_SET_ABS_H */
#define IM_SRELH (BYTE)136 /* IM_SET_REL_H */
#define IM_SABSV (BYTE)137 /* IM_SET_ABS_V */
#define IM_SRELV (BYTE)138 /* IM_SET_REL_V */
#define IM_BRULE (BYTE)193
#define IM_BGLY (BYTE)199
#define IM_SET_FAMILY (BYTE)207
#define IM_PAGE (BYTE)213
#define IM_ENDPAGE (BYTE)219
#define IM_EOF (BYTE)255
#define ROUND(x) ((int)(x + 0.5))
/* Output a 16-bit binary number in two bytes */
#define OUT16(n) {OUTC((n)>>8); OUTC(n);}
/*******************************************************************
The imPRESS XY coordinate system has X increasing to the right, Y
increasing down, and the origin at the upper left corner.
The DVI XY coordinate system has X increasing to the right, Y
increasing up, and the origin at the lower left corner.
Rather than redefine the imPRESS HV coordinates (and advance
directions) to correspond to DVI XY coordinates, I have chosen to
let MOVETO/MOVEY/RMOVEY convert from DVI-Y to imPRESS-Y coordinates.
*******************************************************************/
/* Absolute movement */
#define MOVETO(x,y) if (x||(y-YSIZE)) {MOVEX(x); MOVEY(y);} else OUTC(IM_PAGE)
#define MOVEX(x) {OUTC(IM_SABSH); OUT16(x);}
#define MOVEY(y) {OUTC(IM_SABSV); OUT16(YSIZE-y);}
/* Relative movement */
#define RMOVETO(delx,dely) {RMOVEX(delx); RMOVEY(dely);}
#define RMOVEX(delx) if (delx) {OUTC(IM_SRELH); OUT16(delx);}
#define RMOVEY(dely) if (dely) {OUTC(IM_SRELV); OUT16(-dely);}
/* Eject a page from the printer--this is the last command on each page */
#define PAGEEJECT OUTC(IM_ENDPAGE)
/*******************************************************************
State variable defaults are:
coordinate system:
Origin is at top left corner of page (top and left defined
by HV)
Positive V axis is 90 degrees clockwise from positive H axis
Positive H axis is physically "down" the page
OUTC(IM_SET_HV_SYSTEM), OUTC( (2<<5) | (2<<3) | 4)
current position:
MOVETO(0,0)
text print direction:
Main advance direction is along H-axis
Secondary advance direction is clockwise from Main adv. dir.
OUTC(IM_SET_ADV_DIRS), OUTC( (0<<1) | 0 )
spacing (not used: done by TeX):
OUTC(IM_SET_SP), OUT16(0?)
OUTC(IM_SET_BOL), OUT16(0) * default left margin is 0 *
OUTC(IM_SET_IL), OUT16(0) * no default interline spacing *
selected font:
OUTC(IM_SET_FAMILY), OUTC(0?)
graphics (TEXTURE is used for rules, others not used by TeX):
OUTC(IM_SET_TEXTURE), OUT16(0) * Texture is solid black *
OUTC(IM_SET_PEN), OUTC(1?)
OUTC(IM_SET_MAGNIFICATION), OUTC(0)
OUTC(IM_SET_PUM), OUTC(0)
push mask:
OUTC(IM_SET_PUSH_MASK), OUTC(0x01FF)
*******************************************************************/
#define ENDJOB OUTC(IM_EOF)
/*******************************************************************
Note: if predefined fonts are used, the definitions to access them
can't be redefined (i.e. the member maps and family tables). And
once a glyph has been explicitly defined, there is no way to
redefine it as a reference to a predefined glyph. This would be
troublesome if TeX used the predefined fonts.
*******************************************************************/
/* Set the current font number */
#define SETCURRENTFONT(fontnumber) {OUTC(IM_SET_FAMILY);OUTC(fontnumber);}
#include "main.h"
#include "abortrun.h"
#include "actfact.h"
#include "alldone.h"
/*-->bopact*/
/**********************************************************************/
/******************************* bopact *******************************/
/**********************************************************************/
void
bopact() /* beginning of page action */
{
str_ycp = -1; /* last string ycp */
}
#include "chargf.h"
#include "charpk.h"
#include "charpxl.h"
#include "clrrow.h"
#include "dbgopen.h"
/*-->devinit*/
/**********************************************************************/
/****************************** devinit *******************************/
/**********************************************************************/
void
devinit(argc,argv) /* initialize device */
int argc;
char *argv[];
{
/* Provide a minimal document header which prevents the printer from
rearranging the page order. */
OUTS("@document(language impress, pagecollation off, pagereversal off, \
prerasterization off, jamresistance on");
if ((int)copies > 1) /* avoid unnecessary output to allow */
OUTF(", copies %d",(int)copies); /* later override */
OUTC(')');
OUTC(IM_SET_FAMILY);
OUTC(0);
font_count = 0; /* no font numbers are assigned yet */
font_switched = TRUE;
}
/*-->devterm*/
/**********************************************************************/
/****************************** devterm *******************************/
/**********************************************************************/
void
devterm() /* terminate device */
{
ENDJOB;
}
#include "dvifile.h"
#include "dviinit.h"
#include "dviterm.h"
/*-->eopact*/
/**********************************************************************/
/******************************* eopact *******************************/
/**********************************************************************/
void
eopact() /* end of page action */
{
PAGEEJECT;
}
#include "f20open.h"
#include "fatal.h"
/*-->fillrect*/
/**********************************************************************/
/****************************** fillrect ******************************/
/**********************************************************************/
void
fillrect(x,y,width,height)
COORDINATE x,y,width,height; /* lower left corner, size */
/***********************************************************************
With the page origin (0,0) at the lower-left corner, draw a filled
rectangle at (x,y).
For most TeX uses, rules are uncommon, and little optimization is
possible. However, for the LaTeX Bezier option, curves are simulated by
many small rules (typically 2 x 2) separated by positioning commands.
It is not possible to use relative, instead of absolute, moves in these
sequences, without stacking rules for the whole page, because each rule
is separated in the DVI file by push, pop, and positioning commands,
making for an uncertain correspondence between internal (xcp,ycp)
pixel page coordinates and external device coordinates.
The last string y coordinate, str_ycp, must be reset here to force any
later setstring() to reissue new absolute positioning commands.
***********************************************************************/
{
str_ycp = -1; /* invalidate string y coordinate */
/*
Output a new rule at TeX position (x,y). The device coordinates
will be changed on completion. The rule origin is the TeX
convention of the lower-left corner, while imPRESS uses the
upper-left corner, but allows an offset to be provided. Note that
the offset must be negated because imPRESS and TeX differ on the
direction of the Y-axis.
*/
MOVETO(x,y);
OUTC(IM_BRULE);
OUT16(width);
OUT16(height);
OUT16(-height);
}
#include "findpost.h"
#include "fixpos.h"
#include "fontfile.h"
#include "fontsub.h"
#include "getbytes.h"
#include "getfntdf.h"
#include "getpgtab.h"
#include "inch.h"
#include "initglob.h"
/*-->loadchar*/
/**********************************************************************/
/****************************** loadchar ******************************/
/**********************************************************************/
/*******************************************************************
<------wp------>
^ ................ ^
| ................ |
| ................ |
| ................ |
| ................ |
| ................ |--- yoffp (negative if (xcp,ycp) above bitmap)
| ................ |
hp ................ |
| ................ |
| ................ |
| ................ |
| .....o.......... v <-- character reference point (xcp,ycp) at "o"
| ................
| ................
| ................
| ................
v +............... <-- (xcorner,ycorner) at "+"
<--->
|
|
xoffp (negative if (xcp,ycp) left of bitmap)
when char set: (xcp',ycp') := (xcp+tfmw,ycp)
----- -------
TeX imPRESS
----- -------
xoffp left offset
yoffp top offset
wp width
hp height
tfmw advance width
*******************************************************************/
void
loadchar(c)
register BYTE c;
{
void (*charyy)(); /* subterfuge to get around PCC-20 bug */
register struct char_entry *tcharptr; /* temporary char_entry pointer */
if ((c < FIRSTPXLCHAR) || (LASTPXLCHAR < c)) /* check character range */
return;
tcharptr = &(fontptr->ch[c]);
if (!VISIBLE(tcharptr))
return; /* do nothing for invisible fonts */
if (fontptr != pfontptr)
openfont(fontptr->n);
if (fontfp == (FILE *)NULL) /* do nothing if no font file */
return;
(void)clearerr(plotfp);
tcharptr->isloaded = TRUE;
OUTC(IM_BGLY);
OUT16( (0<<14) + ((fontptr->font_number)<<7) + c);
OUT16(tcharptr->pxlw); /* advance width */
OUT16(tcharptr->wp); /* width */
OUT16(tcharptr->xoffp); /* left offset */
OUT16(tcharptr->hp); /* height */
OUT16(tcharptr->yoffp+1); /* top offset */
/* Bug fix: PCC-20 otherwise jumps to charxx instead of *charxx */
charyy = fontptr->charxx;
(void)(*charyy)(c,outrow); /* output rasters */
if (DISKFULL(plotfp))
(void)fatal("loadchar(): Output error -- disk storage probably full");
}
#include "movedown.h"
#include "moveover.h"
#include "moveto.h"
/*-->newfont*/
/**********************************************************************/
/****************************** newfont *******************************/
/**********************************************************************/
void
newfont()
{
register UNSIGN16 the_char; /* loop index */
INT16 j; /* loop index */
for (the_char = FIRSTPXLCHAR; the_char <= LASTPXLCHAR; the_char++)
fontptr->ch[the_char].isloaded = FALSE;
for (j = 0; j < (INT16)font_count; ++j)
if (font_table[j] == fontptr) /* then font already known */
break;
if (j >= (INT16)font_count) /* new font */
{
fontptr->font_number = font_count;
font_table[font_count++] = fontptr;
}
}
#include "nosignex.h"
#include "openfont.h"
#include "option.h"
/*-->outrow*/
/**********************************************************************/
/******************************* outrow *******************************/
/**********************************************************************/
void
outrow(c,yoff) /* copy img_row[] into rasters[] if allocated, else no-op */
BYTE c; /* current character value */
UNSIGN16 yoff; /* offset from top row (0,1,...,hp-1) */
{
UNSIGN16 bytes_per_row; /* number of raster bytes to copy */
register UNSIGN16 k; /* loop index */
register UNSIGN32 *p; /* pointer into img_row[] */
struct char_entry *tcharptr;/* temporary char_entry pointer */
register BYTE the_byte; /* unpacked raster byte */
tcharptr = &(fontptr->ch[c]);/* assume check for valid c has been done */
bytes_per_row = ((tcharptr->wp) + 7) >> 3; /* wp div 8 */
p = img_row; /* we step pointer p along img_row[] */
for (k = bytes_per_row; ; ++p)
{
the_byte = (BYTE)((*p) >> 24);
OUTC(the_byte);
if ((--k) <= 0)
break;
the_byte = (BYTE)((*p) >> 16);
OUTC(the_byte);
if ((--k) <= 0)
break;
the_byte = (BYTE)((*p) >> 8);
OUTC(the_byte);
if ((--k) <= 0)
break;
the_byte = (BYTE)(*p);
OUTC(the_byte);
if ((--k) <= 0)
break;
}
}
#include "prtpage.h"
#include "readfont.h"
#include "readgf.h"
#include "readpk.h"
#include "readpost.h"
#include "readpxl.h"
#include "reldfont.h"
#include "rulepxl.h"
/*-->setchar*/
/**********************************************************************/
/****************************** setchar *******************************/
/**********************************************************************/
void
setchar(c, update_h)
register BYTE c;
register BOOLEAN update_h;
{
register struct char_entry *tcharptr; /* temporary char_entry pointer */
/* ONPAGE() is used here and in setstr() */
#define ONPAGE(t) (((hh - t->xoffp + t->pxlw) <= XSIZE) \
&& (hh >= 0)\
&& (vv <= YSIZE)\
&& (vv >= 0))
if (DBGOPT(DBG_SET_TEXT))
{
(void)fprintf(stderr,"setchar('");
if (isprint(c))
(void)putc(c,stderr);
else
(void)fprintf(stderr,"\\%03o",(int)c);
(void)fprintf(stderr,"'<%d>) (hh,vv) = (%ld,%ld) font name <%s>",
(int)c, (long)hh, (long)vv, fontptr->n);
NEWLINE(stderr);
}
tcharptr = &(fontptr->ch[c]);
moveto(hh,YSIZE-vv);
if (ONPAGE(tcharptr))
{ /* character fits entirely on page */
if (font_switched)
{
SETCURRENTFONT(fontptr->font_number);
font_switched = FALSE;
}
if (VISIBLE(tcharptr))
{
if (!tcharptr->isloaded)
loadchar(c);
if (ycp != str_ycp)
{
MOVETO(xcp,ycp);
str_ycp = ycp;
}
else
MOVEX(xcp);
OUTC(c);
}
}
else if (DBGOPT(DBG_OFF_PAGE) && !quiet)
{ /* character is off page -- discard it */
(void)fprintf(stderr,
"setchar(): Char %c [10#%3d 8#%03o 16#%02x] off page.",
isprint(c) ? c : '?',c,c,c);
NEWLINE(stderr);
}
if (update_h)
{
h += (INT32)tcharptr->tfmw;
hh += (COORDINATE)tcharptr->pxlw;
hh = fixpos(hh-lmargin,h,conv) + lmargin;
}
}
#include "setfntnm.h"
#include "setrule.h"
/*-->setstr*/
/**********************************************************************/
/******************************* setstr *******************************/
/**********************************************************************/
void
setstr(c)
register BYTE c;
{
register struct char_entry *tcharptr; /* temporary char_entry pointer */
register BOOLEAN inside;
INT32 h0,v0; /* (h,v) at entry */
COORDINATE hh0,vv0; /* (hh,vv) at entry */
COORDINATE hh_last; /* hh before call to fixpos() */
register UNSIGN16 k; /* loop index */
UNSIGN16 nstr; /* number of characters in str[] */
BYTE str[MAXSTR+1]; /* string accumulator */
BOOLEAN truncated; /* off-page string truncation flag */
/*******************************************************************
Set a sequence of characters in SETC_000 .. SETC_127 with a minimal
number of imPRESS commands. These sequences tend to occur in long
clumps in a DVI file, and setting them together whenever possible
substantially decreases the overhead and the size of the output
file. A sequence can be set as a single string if
* TeX and imPRESS coordinates of each character agree, AND
* each character is in the same font (this will always be true
in a sequence from a DVI file), AND
* each character fits within the page boundaries, AND
* each character definition is already loaded, AND
* each character is from a visible font
Whenever any of these conditions does not hold, any string already
output is terminated, and a new one begun.
Two output optimizations are implemented here. First, up to MAXSTR
(in practice more than enough) characters are collected in str[],
and any that require downloading are handled. Then the entire
string is set at once, subject to the above limitations. Second, by
recording the vertical page coordinate, ycp, in the global variable
str_ycp (reset in prtpage() at begin-page processing), it is
possible to avoid outputting y coordinates unnecessarily, since a
single line of text will generally result in many calls to this
function.
*******************************************************************/
#define BEGINSTRING {inside = TRUE;\
if (ycp != str_ycp)\
{\
MOVETO(xcp,ycp);\
str_ycp = ycp;\
}\
else\
MOVEX(xcp);}
#define ENDSTRING {inside = FALSE;}
#define OFF_PAGE (-1) /* off-page coordinate value */
if (font_switched) /* output new font selection */
{
SETCURRENTFONT(fontptr->font_number);
font_switched = FALSE;
}
inside = FALSE;
truncated = FALSE;
hh0 = hh;
vv0 = vv;
h0 = h;
v0 = v;
nstr = 0;
while ((SETC_000 <= c) && (c <= SETC_127) && (nstr < MAXSTR))
{ /* loop over character sequence */
tcharptr = &(fontptr->ch[c]);
moveto(hh,YSIZE-vv);
if (ONPAGE(tcharptr) && VISIBLE(tcharptr))
{ /* character fits entirely on page and is visible */
if (!tcharptr->isloaded) loadchar(c);
}
/* update horizontal positions in TFM and pixel units */
h += (INT32)tcharptr->tfmw;
hh += (COORDINATE)tcharptr->pxlw;
str[nstr++] = c; /* save string character */
c = (BYTE)nosignex(dvifp,(BYTE)1);
}
/* put back character which terminated the loop */
(void)UNGETC((int)(c),dvifp);
hh = hh0; /* restore coordinates at entry */
vv = vv0;
h = h0;
v = v0;
if (DBGOPT(DBG_SET_TEXT))
{
(void)fprintf(stderr,"setstr(\"");
for (k = 0; k < nstr; ++k)
{
c = str[k];
if (isprint(c))
(void)putc(c,stderr);
else
(void)fprintf(stderr,"\\%03o",(int)c);
}
(void)fprintf(stderr,"\") (hh,vv) = (%ld,%ld) font name <%s>",
(long)hh, (long)vv, fontptr->n);
NEWLINE(stderr);
}
for (k = 0; k < nstr; ++k)
{ /* loop over character sequence */
c = str[k];
tcharptr = &(fontptr->ch[c]);
moveto(hh,YSIZE-vv);
if (ONPAGE(tcharptr) && VISIBLE(tcharptr))
{ /* character fits entirely on page and is visible */
if (tcharptr->isloaded) /* character already downloaded */
{
if (!inside)
BEGINSTRING;
OUTC(c);
}
else /* character must be downloaded first */
{
if (inside)
ENDSTRING; /* finish any open string */
}
}
else /* character does not fit on page -- output */
{ /* current string and discard the character */
truncated = TRUE;
if (inside)
ENDSTRING;
}
/* update horizontal positions in TFM and pixel units */
h += (INT32)tcharptr->tfmw;
hh += (COORDINATE)tcharptr->pxlw;
hh_last = hh;
hh = fixpos(hh-lmargin,h,conv) + lmargin;
if (DBGOPT(DBG_POS_CHAR))
{
(void)fprintf(stderr,
"[%03o] xcp = %d\tycp = %d\thh = %d\thh_last = %d\n",
c,xcp,ycp,hh,hh_last);
}
/* If fixpos() changed position, we need new string next time */
if ((hh != hh_last) && inside)
ENDSTRING;
}
if (truncated && DBGOPT(DBG_OFF_PAGE) && !quiet)
{
(void)fprintf(stderr,"setstr(): Text [");
for (k = 0; k < nstr; ++k)
(void)fprintf(stderr,isprint(str[k]) ? "%c" : "\\%03o",str[k]);
(void)fprintf(stderr,"] truncated at page boundaries.");
NEWLINE(stderr);
}
if (inside) /* finish last string */
ENDSTRING;
}
#include "signex.h"
#include "skgfspec.h"
#include "skipfont.h"
#include "skpkspec.h"
#include "special.h"
#include "strchr.h"
#include "strcm2.h"
#include "strid2.h"
#include "strrchr.h"
#include "tctos.h"
#include "usage.h"
#include "warning.h"
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