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|
/* -*-C-*- dvica2.c */
/* Developed for Canon LBP-8 A2 from DVIIMP.C and DVIJEP.C [03-Jan-87]
Page references in comments refer to
Canon LBP-8 A1/A2 Laser Beam Printer User's Manual
edition PUB.R-IE-034-V1C.0186B2.5 (1985)
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
NB: This is a preliminary release. Serious problems with the Canon
A2 downloaded font mechanism force loading of characters as bitmaps
at every reference, making it very slow....
This new experimental version, DVICA2.C, has been extended by Pekka
Pietilainen <TFYS-PP@FINOU.BITNET> at Oulu University, Oulu, Finland
during June-August 1987. It permits downloading of characters as
fonts, rather than as bitmaps, with control over the character size
adjustable by run-time options -g<stor_fonts>, -s<size limit>,
-u<merit factor>, and -v<stor_limit>. These options will likely be
removed as more experience with this driver is obtained. It has not
been possible to test it at Utah, since we no longer have a Canon A2
available to us.
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
*/
/*-->DVICAN*/
/**********************************************************************/
/******************************* dvican *******************************/
/**********************************************************************/
#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 CANON_A2
#define CANON_A2 1 /* conditional compilation flag */
#define CANON_TEST 1 /* this may be used ONLY inside */
/* #if CANON_A2 ... #endif code */
#define VERSION_NO "2.10b [experimental]" /* DVI driver version number */
#define DEVICE_ID "Canon LBP-8 A2 laser printer"
/* this string is printed at runtime */
#define OUTFILE_EXT "ca2"
#define BYTE_SIZE 8 /* output file byte size */
#undef STDRES
#define STDRES 1 /* to get standard font resolution */
#define CONCBUFFSIZE 512 /* file copy buffer size */
#define MAXLINE 4096 /* maximum input file line size */
/* it is needed only in special() */
#define LOADSEQSIZE 10 /* Bytes in bitmap command */
#define STOR_LIMIT 40000 /* Memory size */
#define STOR_FONTS 32000 /* Memory for one font */
#define MERIT_FACT 20 /* Merit to down load character */
#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 a Canon LBP-8 A2 printer; they express that fact
that the real (0,0) is 30 dots to the left of, and 111 dots above, the
top left corner of an 8.5in x 11in page. This disagrees with p. 53 of
the User's Manual which gives values of 48 and 60. */
#define XORIGIN 30 /* measured pixel coordinates of */
#define YORIGIN 111 /* page origin (should be at (0,0)) */
/* All Canon A2 command sequences are defined symbolically here, so that no
magic byte strings appear in the text. */
#define CSI "\033[" /* control sequence introducer */
#define DOT_MODE "\033[11h" /* coordinates in dots */
#define FONTNUMBER(n) (int)(200 + (n)) /* user font number in 200..255 */
#define GS_NUMBER(n) (int)(3840 + (n)) /* graphics set number in 3840..4095 */
#define HARD_RESET "\033c" /* hard reset to power-on defaults */
#define SOFT_RESET "\033<"
#define ISO_MODE "\033;" /* ISO text mode */
#define RESET_MODE "\033[?1;3;4;5;6;7l" /* set no auto CR/LF, no LF with CR, */
/* no CR with LF, no CR with FF, no CR */
/* with VT */
#define SEL_PAINT "\033[2&z" /* select paint memory mode - full */
#define INIT_PARAMS "\033=" /* initialize parameters */
#define SET_MODE "\033[?2h" /* set no auto FF, no auto position feed */
#define SIZE_UNIT "\033[7\040I" /* units of 1/300 inch (i.e. dots) */
#define SPACING_INCREMENT "\033[0;0\040G" /* set HMI and VMI to zero; */
/* all character spacing is done explicitly */
#define PROPORT_PITCH "\033[?0\040K" /* select proportional pitch */
#define STORE_POS "\033[1x" /* store current position */
#define RESTORE_POS "\033[x" /* restore position */
#define STOREPOS OUTS(STORE_POS)
#define RESTOREPOS OUTS(RESTORE_POS)
#define PAGE_EJECT "\033[z" /* eject page */
/* Horizontal rule with lower-left corner at (x,y). NB: h in 1..9 */
#define HRULE(x,y,w,h) {MOVETO(x,y-(h>>1)); OUTCSI; OUTNUM(h); OUTC('{');\
RMOVEX(w); OUTCSI; OUTC('}');}
/* Map characters (0..32,33..127) to (160..192,33..127) */
#define MAPCHAR(c) (((c) > 32) ? (c) : ((c) + 160))
/* Move absolute to (x,y), page origin in lower left corner */
#define MOVETO(x,y) {MOVEX(x); MOVEY(y);}
/* Move absolute to (x,current y), page origin in lower left corner */
#define MOVEX(x) {OUTCSI; OUTNUM(x); OUTC('\140');}
/* Move absolute to (current x,y), page origin in lower left corner */
#define MOVEY(y) {OUTCSI; OUTNUM(YSIZE-y); OUTC('d');}
/* Output bitmap prefix to be followed by <bytecount> bytes of the bitmap */
#define OUTBITMAP(bytecount,bytewidth) {\
OUTCSI;\
OUTNUM(bytecount);\
OUTC(';');\
OUTNUM(bytewidth);\
OUTS(".r");}
/* Output TeX character number with mapping to Canon number */
#define OUTCHAR(c) OUTC(MAPCHAR(c))
#define FOUTCHAR(c) FOUTC(MAPCHAR(c))
/* Output control sequence prefix */
#define OUTCSI {OUTC('\033'); OUTC('[');}
#define FOUTCSI {FOUTC('\033');FOUTC('[');}
/* Output a number as a minimal decimal digit string */
#define OUTNUM(n) OUTF("%d",n)
/* Eject a page from the printer--this is the last command on each page */
#define PAGEEJECT OUTC('\f')
/* Move relative by (dx,0) from current point */
#define RMOVEX(dx) if ((dx) > 0) \
{OUTCSI; OUTNUM(dx); OUTC('a');} \
else if ((dx) < 0) \
{OUTCSI; OUTNUM(-(dx)); OUTC('j');}
/* Move relative by (0,dy) from current point */
#define RMOVEY(dy) if ((dy) > 0) \
{OUTCSI; OUTNUM(dy); OUTC('k');} \
else if ((dy) < 0) \
{OUTCSI; OUTNUM(-(dy)); OUTC('e');}
/* Set the number of copies of the current page (issue just before
PAGEEJECT) */
#define SETCOPIES(n) {OUTCSI; OUTNUM(n); OUTC('v');}
/* Set the current font number. Canon A2 seems to need both a font
number and an encoded graphics set number, sigh... */
#if OS_ATARI
#define SETCURRENTFONT(n) setcurrentfont(n)
void
setcurrentfont(n)
UNSIGN16 n;
{
OUTS("\033\050");
OUTC(0x20 | (0x0f & (GS_NUMBER(n)>>8)));
OUTC(0x20 | (0x0f & (GS_NUMBER(n)>>4)));
OUTC(0x30 | (0x0f & (GS_NUMBER(n))));
OUTF2("%s%dy",CSI,FONTNUMBER(n));
}
#else
#define SETCURRENTFONT(n) {OUTS("\033\050");\
OUTC(0x20 | (0x0f & (GS_NUMBER(n)>>8)));\
OUTC(0x20 | (0x0f & (GS_NUMBER(n)>>4)));\
OUTC(0x30 | (0x0f & (GS_NUMBER(n))));\
OUTF2("%s%dy",CSI,FONTNUMBER(n));}
#endif
/* Vertical rule with lower-left corner at (x,y). NB: w in 1..9 */
#define VRULE(x,y,w,h) {MOVETO(x+((w+1)>>1),y); OUTCSI; OUTNUM(w); OUTC('{');\
RMOVEY(h); OUTCSI; OUTC('}');}
FILE* savefp = (FILE*)NULL;/* font output file */
UNSIGN16 merit_fact; /* merit factor to download a character */
struct new_sizes {
UNSIGN32 stor_inc;
COORDINATE new_w;
COORDINATE new_h;
COORDINATE new_d;
};
UNSIGN32 stor_limit; /* storage for down loaded fonts */
UNSIGN32 stor_total; /* total used storage */
UNSIGN32 stor_fonts; /* storage for single font */
char tmoname[MAXFNAME]; /* temporary output file */
#if ANSI
BOOLEAN bigchar(struct font_entry *,BYTE);
void concatenate(FILE*,FILE*);
void dumpfnts(struct font_entry *);
BOOLEAN isnewbig(struct font_entry *,struct char_entry *,struct new_sizes*);
void loadcmap(struct font_entry *,BYTE);
void outcrow(BYTE,UNSIGN16);
#else
BOOLEAN bigchar();
void concatenate();
void dumpfnts();
BOOLEAN isnewbig();
void loadcmap();
void outcrow();
#endif
#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 */
}
/*-->bigchar*/
/**********************************************************************/
/****************************** bigchar *******************************/
/**********************************************************************/
/* Check if the character is too big to be down loaded */
BOOLEAN
bigchar(tfptr, c)
struct font_entry *tfptr;
BYTE c;
{
struct char_entry *tcptr;
struct new_sizes increm;
tcptr = &(tfptr->ch[c]);
if(tcptr->isloaded)
return(FALSE);
if(tcptr->isknown)
return(tcptr->istoobig);
tcptr->isknown = TRUE;
return(tcptr->istoobig = isnewbig(tfptr, tcptr, &increm));
}
#include "chargf.h"
#include "charpk.h"
#include "charpxl.h"
#include "clrrow.h"
/*-->concatenate*/
/**********************************************************************/
/**************************** concatenate *****************************/
/**********************************************************************/
void
concatenate(f1, f2)
FILE *f1, *f2;
{
char buffer[CONCBUFFSIZE];
UNSIGN16 n;
rewind(f2);
while((n = fread(buffer, 1, CONCBUFFSIZE, f2)) > 0)
fwrite(buffer, 1, n, f1);
}
#include "dbgopen.h"
/*-->devinit*/
/**********************************************************************/
/****************************** devinit *******************************/
/**********************************************************************/
void
devinit(argc,argv) /* initialize device */
int argc;
char *argv[];
{
FOUTS(HARD_RESET); /* Reset the printer */
/*FOUTS(HARD_RESET);*/
FOUTS(SEL_PAINT); /* Full paint mode */
FOUTS(DOT_MODE); /* spacing in units of dots */
FOUTS(SIZE_UNIT); /* ditto, sigh... */
FOUTS(SPACING_INCREMENT); /* HMI and VMI to 0 to prevent auto spacing */
FOUTS(SET_MODE); /* these two prevent page ejects when objects */
FOUTS(RESET_MODE); /* extend into margins */
FOUTS(PROPORT_PITCH); /* proportional pitch */
font_count = 0; /* no font numbers are assigned yet */
font_switched = TRUE;
}
/*-->devterm*/
/**********************************************************************/
/****************************** devterm *******************************/
/**********************************************************************/
void
devterm() /* terminate device */
{
struct font_entry *fentr;
int i;
if(!quiet)
(void)fprintf(stderr,"\nFont sizes and storages\n");
for(i = 0; i < font_count; i++) {
fentr = font_table[ i ];
dumpfnts(fentr);
}
if(!quiet)
(void)fprintf(stderr,"Total storage: %d\n",stor_total);
concatenate(savefp, plotfp); /* Concatenate fonts and TeX output */
fclose(plotfp);
unlink(tmoname);
plotfp = savefp;
OUTS(HARD_RESET); /* reset to power-up status */
OUTS(HARD_RESET); /* reset to power-up status */
OUTF("\n\n\n %s\n",dvoname);
}
/*-->dumpchar*/
/**********************************************************************/
/****************************** dumpchar ******************************/
/**********************************************************************/
/* Dump character pixmap to output */
void
dumpchar(c, chptr, baseline, width, height)
UNSIGN16 c;
struct char_entry *chptr;
COORDINATE baseline, width, height;
{
UNSIGN16 rowlen; /* Bytes/row */
UNSIGN16 sigbytes; /* Bytes/char cell row */
UNSIGN16 uprows, dwrows; /* Zero fill rows */
UNSIGN16 lfbytes; /* Zero fill columns */
UNSIGN32 *p; /* Pointer to raster image */
UNSIGN16 i, j; /* Loop variables */
BYTE byteout; /* Output byte */
uprows = height - baseline - chptr->yoffp;
dwrows = height - uprows - chptr->hp;
rowlen = (width + 7) >> 3;
sigbytes = (chptr->wp + 7) >> 3;
lfbytes = rowlen - sigbytes;
p = chptr->rasters;
FOUTCHAR(c);
FOUTC(chptr->pxlw);
/*FOUTC((BYTE)(chptr->pxlw - chptr->xoffp));*/
FOUTC((BYTE) chptr->wp);
/*FOUTC((BYTE)chptr->pxlw);*/
FOUTC((BYTE)((-chptr->xoffp) & 0x00ff));
for(i = 0; i < uprows; i++) /* Zero fill top rows */
for(j = 0; j < rowlen; j++)
FOUTC('\0');
for(i = 0; i < chptr->hp; i++) { /* Significant rows */
for(j = sigbytes; ; p++) {
byteout = (BYTE)((*p) >> 24);
FOUTC(byteout);
if((--j) <= 0)
break;
byteout = (BYTE)((*p) >> 16);
FOUTC(byteout);
if((--j) <= 0)
break;
byteout = (BYTE)((*p) >> 8);
FOUTC(byteout);
if((--j) <= 0)
break;
byteout = (BYTE)(*p);
FOUTC(byteout);
if((--j) <= 0)
break;
}
p++;
for(j = 0; j < lfbytes; j++) /* Zero bytes at left */
FOUTC('\0');
}
for(i = 0; i < dwrows; i++) /* Zero rows at bottom */
for(j = 0; j < rowlen; j++)
FOUTC('\0');
}
/*-->dumpfnts*/
/**********************************************************************/
/****************************** dumpfnts ******************************/
/**********************************************************************/
/* Dump entire font to output */
void
dumpfnts(tfptr)
struct font_entry *tfptr;
{
struct char_entry *cfptr; /* Character to be dumped */
UNSIGN16 nloaded; /* Number of loaded chars */
UNSIGN16 c; /* Ascii code */
COORDINATE baseline, width, height;
nloaded = tfptr->nloaded;
/* Count loaded chars */
if(!quiet)
(void)fprintf(stderr, "Font (%d x %d + %d) x %d : %d \n",
tfptr->cell_w, tfptr->cell_h, tfptr->cell_d, nloaded,
tfptr->storage);
if(!nloaded)
return;
baseline = tfptr->cell_d;
width = tfptr->cell_w;
height = tfptr->cell_h + baseline;
FOUTCSI;
(void)fprintf(savefp,
"%d;%d;0;0;%d;2;%d;%d;0;0;%d;%d;%d;%d;1;1;0;%d.p",
tfptr->storage,
nloaded,
GS_NUMBER(tfptr->font_number),
(int)30000/width,
(int)24*height,
FONTNUMBER(tfptr->font_number),
width,
height,
(baseline >= 0) ? MIN(baseline + 1, height) : -baseline,
/*MAX(1,MIN(abs(baseline),height)),*/
(baseline >= 0) ? 0 : 1);
for(c = FIRSTPXLCHAR; c <= LASTPXLCHAR; c++)
{
cfptr = &(tfptr->ch[c]);
if(cfptr->isloaded)
dumpchar(c, cfptr, baseline, width, height);
}
return;
}
#include "dvifile.h"
#include "dviinit.h"
#include "dviterm.h"
/*-->eopact*/
/**********************************************************************/
/******************************* eopact *******************************/
/**********************************************************************/
void
eopact() /* end of page action */
{
if (copies > 1)
SETCOPIES(copies);
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 setstr() 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. The Canon A2 limits vertical
rule widths, and horizontal rule heights, to 9 dots, so we may need
to generate more than one rule request.
*/
if (width > height) /* horizontal rule */
{
for (; height > 0; (y += 9, height -= 9))
HRULE(x,y,width,(height > 9 ? 9 : height));
}
else /* vertical rule */
{
for (; width > 0; (x += 9, width -= 9))
VRULE(x,y,(width > 9 ? 9 : width),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"
/*-->isnewbig*/
/**********************************************************************/
/****************************** isnewbig *******************************/
/**********************************************************************/
/* Is previously unknown character too big */
BOOLEAN
isnewbig(tfptr, tcptr, tsptr)
struct font_entry *tfptr;
struct char_entry *tcptr;
struct new_sizes *tsptr;
{
COORDINATE width, height, ch, cd, chd;
UNSIGN32 bmapsize, storage, storinc;
if(((width = tcptr->wp) > size_limit) ||
((height = tcptr->hp) > size_limit))
return(TRUE);
bmapsize = ((width + 7) >> 3) * height + LOADSEQSIZE;
ch = tcptr->yoffp;
cd = height - ch;
if(ch < tfptr->cell_h)
ch = tfptr->cell_h;
ch = MAX(0, ch);
if(cd < tfptr->cell_d)
cd = tfptr->cell_d;
if(cd < 0)
cd = -MIN(cd + ch, -cd);
if(width < tfptr->cell_w)
width = tfptr->cell_w;
if((chd = ch + cd) > size_limit)
return(TRUE);
/* Calculate new storage */
storage = (width + 7) >> 3;
storage *= chd;
storage += 4;
storage *= (tfptr->nloaded + 1);
storinc = storage - tfptr->storage;
if(storage > stor_fonts)
return(TRUE);
if(storinc > merit_fact * bmapsize)
return(TRUE);
if(storinc + stor_total > stor_limit)
return(TRUE);
tsptr->new_w = width;
tsptr->new_h = ch;
tsptr->new_d = cd;
tsptr->stor_inc = storinc;
return(FALSE);
}
/*-->loadbmap*/
/**********************************************************************/
/****************************** loadbmap ******************************/
/**********************************************************************/
void
loadbmap(c) /* load big character as raster bitmap */
register BYTE c;
{
register struct char_entry *tcharptr; /* temporary char_entry pointer */
register INT16 bytewidth;
void (*charyy)(); /* subterfuge to get around PCC-20 bug */
if (fontptr != pfontptr)
(void)openfont(fontptr->n);
if (fontfp == (FILE *)NULL) /* do nothing if no font file */
return;
tcharptr = &(fontptr->ch[c]);
moveto(hh - tcharptr->xoffp,YSIZE-vv+tcharptr->yoffp);
STOREPOS;
MOVETO(xcp,ycp);
bytewidth = ((tcharptr->wp)+7)>>3;
OUTBITMAP(bytewidth*(tcharptr->hp), bytewidth);
/* Bug fix: PCC-20 otherwise jumps to charxx instead of *charxx */
charyy = fontptr->charxx;
(void)(*charyy)(c,outcrow); /* load rasters into device */
RESTOREPOS;
}
#include "loadchar.h"
/*-->loadcmap*/
/**********************************************************************/
/****************************** loadcmap ******************************/
/**********************************************************************/
/* Load character pixmap */
void
loadcmap(tfptr, c)
struct font_entry * tfptr;
BYTE c;
{
struct new_sizes increm;
(void)isnewbig(tfptr, &(tfptr->ch[c]), &increm);
stor_total += increm.stor_inc;
tfptr->nloaded++;
tfptr->storage += increm.stor_inc;
tfptr->cell_h = increm.new_h;
tfptr->cell_d = increm.new_d;
tfptr->cell_w = increm.new_w;
loadchar(c);
}
#include "movedown.h"
#include "moveover.h"
#include "moveto.h"
/*-->newfont*/
/**********************************************************************/
/****************************** newfont *******************************/
/**********************************************************************/
void
newfont()
{
struct char_entry *tchptr;
register UNSIGN16 the_char; /* loop index */
INT16 j; /* loop index */
for (the_char = FIRSTPXLCHAR; the_char <= LASTPXLCHAR; the_char++) {
tchptr = &(fontptr->ch[the_char]);
tchptr->isloaded = FALSE;
tchptr->isknown = FALSE;
tchptr->istoobig = TRUE;
}
fontptr->cell_d = fontptr->cell_h = -10000;
fontptr->cell_w = 0;
fontptr->nloaded = 0;
fontptr->storage = 0;
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"
/*-->outcrow*/
/**********************************************************************/
/****************************** outcrow *******************************/
/**********************************************************************/
void
outcrow(c, yoff)
BYTE c;
UNSIGN16 yoff;
{
UNSIGN16 bytes_per_row;
register UNSIGN16 k;
register UNSIGN32 *p;
struct char_entry *tcharptr;
register BYTE the_byte;
tcharptr = &(fontptr->ch[c]);
bytes_per_row = ((tcharptr->wp) + 7) >> 3;
p = 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 "outrow.h"
#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 */
/* BIGCHAR() and ONPAGE() are used here and in setstr() */
/*#define BIGCHAR(t) ((t->cell_w > (COORDINATE)size_limit) ||\
(t->cell_h > (COORDINATE)size_limit)) */
#define ONPAGE(t) (((hh + 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 - tcharptr->xoffp,YSIZE-vv);
if (ONPAGE(tcharptr))
{ /* character fits entirely on page */
/*if (font_switched && !bigchar(fontptr, c))
{
SETCURRENTFONT(fontptr->font_number);
font_switched = FALSE;
}
*/
if (VISIBLE(tcharptr))
{
if (bigchar(fontptr, c))
loadbmap(c);
else
{
if (!tcharptr->isloaded)
loadcmap(fontptr, c);
if (ycp != str_ycp)
{
MOVETO(xcp,ycp);
str_ycp = ycp;
}
else
MOVEX(xcp);
if(font_switched) {
SETCURRENTFONT(fontptr->font_number);
font_switched = FALSE;
}
OUTCHAR(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 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 device 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)
{
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) && (!bigchar(fontptr, c)))
loadcmap(fontptr, 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);
/*(void)fprintf(stderr, "%c:dx %d, dy %d, dw %d\n", c, tcharptr->xoffp,
tcharptr->yoffp, tcharptr->pxlw);*/
if (ONPAGE(tcharptr) && VISIBLE(tcharptr))
{ /* character fits entirely on page and is visible */
if (tcharptr->isloaded) /* character already downloaded */
{
if (!inside)
BEGINSTRING;
if(font_switched){
SETCURRENTFONT(fontptr->font_number);
font_switched = FALSE;
}
OUTCHAR(c);
}
else /* character must be downloaded first */
{
if (inside)
ENDSTRING; /* finish any open string */
if (bigchar(fontptr, c))
loadbmap(c);
}
}
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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