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Length: 72283 (0x11a5b)
Types: TextFile
Names: »dvi2ps.c«
└─⟦060c9c824⟧ Bits:30007080 DKUUG TeX 2/12/89
└─⟦this⟧ »./DVIware/obsolete/mitdrivers/dvi2ps/dvi2ps.c«
#define VERSION "2.10gf"
/*
*
* AUTHOR(s)
* Mark Senn wrote the early versions of this program for the
* BBN BitGraph. Stephan Bechtolsheim, Bob Brown, Richard
* Furuta, James Schaad and Robert Wells improved it. Norm
* Hutchinson ported the program to the Sun. Neal Holtz ported
* it to the Apollo, and from there to producing PostScript
* output. Scott Jones added intelligent font substitution.
* Howard Trickey made it read GF files instead of PXL ones.
*
*/
/* Basic method:
* Using the local font cacheing machinery that was in the previewer,
* we can easily manage to send the bitmap for each chracter only once.
* Two passes are made over each page in the DVI file. The first pass
* simply outputs the bitmaps for all characters on that page that haven't
* been sent before. The second pass outputs all the character setting
* and positioning commands. This allows us to bracket the setting portion
* with PostScript save's and restore's, thus reclaiming considerable
* virtual memory after each page.
*
* All coordinates are output in the PostScript system (TeX origin),
* and in integer units of rasters (300/inch) -- except for character
* widths, which are sent as floating point numbers.
*
* About 2 pages of PostScript support code must be sent to the LaserWriter
* before this stuff goes. It is automatically included unless the
* -h option is given.
*/
/* Change log:
*
* Early 1985, (nmh) -- ported sun version to Apollo.
* A little later (nmh) -- changed to continue on in the event of missing
* font files.
* 30-Mar-85 (nmh) -- added -a option to specify a different PXL area
* 30-Mar-85 (nmh) -- changed default PXL area to /pxl118
* 31-Mar-85 (nmh) -- fixed bug in OpenFontFile() regarding more than MAXOPEN
* PXL files -- changed to mark files as closed in font_entry.
* 7-Apr-85 (nmh) -- made command line argument decoding case insensitive.
* cleaned up handling of DVI file name argument.
* 30-May-85 (nmh) -- new version; hacked to output PostScript commands
* 6-Jun-85 (nmh) -- added relative positioning (20% smaller PostScript output)
* add -m option to specify mag
* 11-Jun-85 (nmh) -- fixed bug regarding char spacings in very long "words"
* 12-Jun-85 (nmh) -- v1.02 - process DVI pages in reverse order
* 13-Jun-85 (nmh) -- fixed bug re PXL files getting opened too often when no PreLoad
* 14-Jun-85 (nmh) -- font dict created in PostScript only when 1st char of font downloaded
* add -m0 -mh -m1 etc. to specify magsteps
* 16-Aug-85 (nmh) -- added -c option t0 create output file in spool area (Apollo specific)
* added -h option to copy header file to output
* added -o option to pass options through to PostScript
* 20-Aug-85 (nmh) -- v1.03
* 24-Aug-85 (nmh) -- add -q option (for quiet operation).
* changed -o option to check PostScript option
* changed to output coordinates in TeX system (but
* scaled to raster units) -- (0,0) at 1" in and down from
* top left (better for use with different size paper).
* -- v2.00
* 25-Aug-85 (nmh) -- added dictionary enclosure to Tex.ps, and output
* suitable prolog here.
* 26-Aug-85 (nmh) -- changes to tex.ps to support Macintosh documents.
* 14-Sep-85 (nmh) -- added keyword=value decoding to \special;
* 15-Sep-85 (nmh) -- added -i file option.
* 23-Sep-85 (saj) -- added font substitution for case when font is
* unavailable at requested mag. (a frequent occurrence
* with some macro packages like LaTeX)
* 7-Jun-86 (hwt) -- use gf files ("pxl" survives in variable names)
* 8-Aug-86 (rkf) -- merged together the pxl and the gf versions. Define
* USEPXL should you want PXL files---gf is the default
* 22-Dec-87 (pam) -- suppress (but do not remove) the function of the -d
* flag for debugging, so that it can be used to specify
* print-engine resolution (inspired by the VariTyper 600).
* 5-Jan-88 (pam) -- provide for 256 character gf fonts.
*/
/**********************************************************************/
/************************ Global Definitions ************************/
/**********************************************************************/
/* This version purports to drive a PostScript device (slowly) */
typedef int BOOLEAN;
#define NEW(A) ((A *) malloc(sizeof(A)))
/* #define DEBUG (use CFLAG instead) */ /* for massive printing of input */
/* trace information; select by -d */
/* option after filename: */
/* dviview filename -d */
/* we want to use -d for the resolution */
#ifdef DEBUG
int Debug = 0;
#endif
/* to enable statistics reporting via -s option */
#define STATS
#define BINARYOPEN fopen /* byte-oriented host version */
#define ARITHRSHIFT 1 /* define if ">>" operator is a */
/* sign-propagating arithmetic */
/* right shift */
#define USEGLOBALMAG 1 /* when defined, the dvi global */
/* magnification is applied */
/* We can leave USEGLOBALMAG undefined when we have a limited
number of font magnifications (at 300dpi) available. Otherwise, we
will simply complain about missing PXL files
*/
/* #undef USEGLOBALMAG */
/* define for "optimal" relative postioning, rather
than absolute. Relative can reduce size of postcript
output 20% (and reduce print time by almost as much */
#define USERELPOS 1
#define DVIFORMAT 2
#define TRUE 1
#define FALSE 0
#define FIRSTFNTCHAR 0
#ifdef USEPXL
#define LASTFNTCHAR 127
#else
#define LASTFNTCHAR 255
#endif
#ifndef FONTAREA
#define FONTAREA "/usr/lib/tex/fonts"
#endif
#ifndef HDRFILE
#define HDRFILE "/usr/lib/tex.ps"
#endif
#ifdef apollo
#ifndef SPOOLFILE
#define SPOOLFILE "/local/spool/laser/tex."
#endif
#define MAXFLEN 28
#endif apollo
#ifdef apollo
#define MAXOPEN 45 /* limit on number of open font raster files */
#else !apollo
#define MAXOPEN 12 /* limit on number of open font raster files */
#endif
#ifdef USEPXL
#define NFNTCHARS 128
#else
#define NFNTCHARS 256
#endif
#define PXLID 1001
#define READ 4 /* for access() */
/* make resolution a switch option */
#define DEFAULTRESOLUTION 300 /* can be changed with [-d integer] */
#define DEFAULThconvRES 300 /* usually the same, but you can get */
#define DEFAULTvconvRES 300 /* interesting effects if they are not */
/* should be yet another switch option (?) */
#define STACKSIZE 100
#define STRSIZE 257
#define NONEXISTENT -1 /* offset for PXL files not found */
#define NO_FILE (FILE *)-1
#ifdef apollo /* define for enabling of -c option (create output file) */
#define CREOPT
#endif apollo
/**********************************************************************/
/*********************** external definitions ***********************/
/**********************************************************************/
#include "commands.h"
#include <sys/param.h>
#include <signal.h>
#include <stdio.h>
#include "findfile.h"
#include <ctype.h>
int access();
char *index();
char *malloc();
int free();
char *rindex();
char *sprintf();
char *strcpy();
char *logname();
#ifndef USEPXL
/* interface to gf.c */
extern FILE *gfin;
extern int checksum;
extern long tfm_wd[], char_pointer[];
extern char char_exists[];
extern int num_cols, num_rows, num_bytes, x_offset, y_offset;
extern unsigned char bits[];
extern int gettochar();
extern void readbits();
extern void readpost();
extern void seekpost();
extern int seekchar();
#endif
#define EQ(a,b) (strcmp(a,b)==0)
/* output a formatted string */
#define EMIT fprintf
/* output a simple string */
#define EMITS(s) fputs(s,outfp)
/* output an escaped octal number */
#define EMITO(c) PutOct(c)
/* output a decimal integer */
#define EMITN(n) PutInt(n)
/* output a byte value in Hex */
#define EMITH(h) putc(*(digit+((h>>4)&0xF)),outfp),\
putc(*(digit+(h&0xF)),outfp)
/* output a single character */
#define EMITC(c) putc(c,outfp)
/* output a scaled X dimension */
#define EMITX(x) PutInt(PixRound(x,hconv))
/* output a scaled Y dimension */
#define EMITY(y) PutInt(PixRound(y,vconv))
/* formatted i/o was killing us, so build some tables */
char *digit = "0123456789ABCDEF";
int dummyInt;
short dummyShort;
char dummyChar;
/**********************************************************************/
/************************* Global Procedures ************************/
/**********************************************************************/
/* Note: Global procedures are declared here in alphabetical order, with
those which do not return values typed "void". Their bodies occur in
alphabetical order following the main() procedure. The names are
kept unique in the first 6 characters for portability. */
void AbortRun();
float ActualFactor();
void AllDone();
FILE* BINARYOPEN();
int ChkOpt(); /* Check PostScript option for validity */
void CopyFile();
void DecodeArgs();
void DoSpecial();
void EmitChar();
void Fatal();
void FindPostAmblePtr();
void GetBytes();
void GetFontDef();
char *GetKeyStr();
int GetKeyVal();
int HasBeenRead();
int IsSame();
void lcase();
void MoveDown();
void MoveOver();
int NoSignExtend(); /* see cautionary note in code, re arithmetic vs logical shifts */
void OpenFontFile();
#ifdef CREOPT
FILE* OpenOutput();
#endif CREOPT
int PixRound();
void PutInt();
int ReadFontDef();
void ReadPostAmble();
void SetChar();
void SetFntNum();
void SetPosn();
void SetRule();
void SetString();
int SignExtend(); /* see cautionary note in code, re arithmetic vs logical shifts */
void SkipFontDef();
void Warning();
/**********************************************************************/
/*********************** Font Data Structures ***********************/
/**********************************************************************/
struct char_entry { /* character entry */
#ifdef USEPXL
unsigned short width, height;/* width and height in pixels */
short xOffset, yOffset; /* x offset and y offset in pixels */
#endif
struct {
int isloaded;
union {
int fileOffset;
long *pixptr; } address;
} where;
int tfmw; /* TFM width */
};
struct font_entry { /* font entry */
int k, c, s, d, a, l;
char n[STRSIZE]; /* FNT_DEF command parameters */
int font_space; /* computed from FNT_DEF s parameter */
int font_mag; /* computed from FNT_DEF s and d parameters */
char psname[STRSIZE]; /* PostScript name of the font */
char name[STRSIZE]; /* full name of PXL file */
FILE *font_file_id; /* file identifier (NO_FILE if none) */
#ifdef USEPXL
int magnification; /* magnification read from PXL file */
int designsize; /* design size read from PXL file */
#endif
struct char_entry ch[NFNTCHARS];/* character information */
struct font_entry *next;
int ncdl; /* # of different chars actually downloaded */
#ifdef STATS
int nbpxl; /* # of bytes of PXL data downloaded */
int ncts; /* total # of characters typeset */
#endif
};
struct pixel_list
{
FILE *pixel_file_id; /* file identifier */
int use_count; /* count of "opens" */
};
/**********************************************************************/
/************************* Global Variables *************************/
/**********************************************************************/
int FirstPage = -1000000; /* first page to print (uses count0) */
int LastPage = 1000000; /* last page to print */
int FontDensity = DEFAULTRESOLUTION; /* the usual Canon 300 dpi */
int hconvResolution = DEFAULThconvRES; /* likewise */
int vconvResolution = DEFAULTvconvRES;
char filename[STRSIZE]; /* DVI file name */
int G_create = FALSE; /* create an output file in spool area ? */
int G_errenc = FALSE; /* has an error been encountered? */
int G_header = TRUE; /* copy header file to output? */
char G_Logname[STRSIZE]; /* name of log file, if created */
int G_interactive = FALSE; /* is the program running interactively */
/* (i.e., standard output not redirected)? */
int G_logging = 0; /* Are we logging warning messages? */
int G_logfile = FALSE; /* Are these messages going to a log file? */
FILE *G_logfp; /* log file pointer (for errors) */
char G_progname[STRSIZE]; /* program name */
int G_quiet = FALSE; /* for quiet operation */
int G_nowarn = FALSE; /* don't print out warnings */
int hconv, vconv; /* converts DVI units to pixels */
int den; /* denominator specified in preamble */
FILE *dvifp = NULL; /* DVI file pointer */
int PreLoad = TRUE; /* preload the font descriptions? */
struct font_entry *prevfont=NULL; /* font_entry pointer, previous character */
struct font_entry *fontptr; /* font_entry pointer */
struct font_entry *hfontptr=NULL;/* font_entry pointer */
int h; /* current horizontal position */
int hh = 0; /* current h on device */
char *Ifile[100]; /* files to include */
int v; /* current vertical position */
int vv = 0; /* current v on device */
int mag; /* magnification specified in preamble */
int ncopies = 1; /* number of copies to print */
int ndone = 0; /* number of pages converted */
int nif = 0; /* number of files to include */
int nopen; /* number of open PXL files */
int nps = 0; /* number of PostScript commands to send */
int num; /* numerator specified in preamble */
#ifdef CREOPT
char outfname[256]; /* name of output file */
#endif CREOPT
FILE *outfp = NULL; /* output file */
struct font_entry *pfontptr = NULL; /* previous font_entry pointer */
struct pixel_list pixel_files[MAXOPEN+1];
/* list of open PXL file identifiers */
long postambleptr; /* Pointer to the postamble */
FILE *pxlfp; /* PXL file pointer */
char *PXLpath; /* PXL path name for search */
long ppagep; /* previous page pointer */
char *PScmd[100]; /* PostScript commands to send */
int Reverse = TRUE; /* process DVI pages in reverse order ? */
char rootname[STRSIZE]; /* DVI filename without extension */
#ifdef STATS
int Stats = FALSE; /* are we reporting stats ? */
int Snbpxl = 0; /* # of bytes of pixel data */
int Sonbpx = 0; /* "optimal" number of bytes of pixel data */
int Sndc = 0; /* # of different characters typeset */
int Stnc = 0; /* total # of chars typeset */
int Snbpx0, Sndc0, Stnc0; /* used for printing incremental changes per dvi page */
#endif
int usermag = 0; /* user specified magnification */
/**********************************************************************/
/******************************* main *******************************/
/**********************************************************************/
main(argc, argv)
int argc;
char *argv[];
{
struct stack_entry { /* stack entry */
int h, v, w, x, y, z; /* what's on stack */
};
int command; /* current command */
int count[10]; /* the 10 counters at begining of each page */
long cpagep; /* current page pointer */
int Emitting = FALSE; /* are we outputting typsetting instructions? */
register int i; /* command parameter; loop index */
int k; /* temporary parameter */
char n[STRSIZE]; /* command parameter */
int PassNo = 0; /* which pass over the DVI page are we on? */
int SkipMode = FALSE; /* in skip mode flag */
int sp; /* stack pointer */
struct stack_entry stack[STACKSIZE]; /* stack */
int t; /* temporary */
char SpecialStr[STRSIZE]; /* "\special" strings */
register struct char_entry *tcharptr; /* temporary char_entry ptr*/
int val, val2; /* temporarys to hold command information*/
int w; /* current horizontal spacing */
int x; /* current horizontal spacing */
int y; /* current vertical spacing */
int z; /* current vertical spacing */
nopen = 0;
strcpy(G_progname, argv[0]);
PXLpath = FONTAREA; /* default font area */
DecodeArgs( argc, argv );
#ifdef apollo
set_sbrk_size( 2048*1024 );
#endif
if ((i = NoSignExtend(dvifp, 1)) != PRE) {
fprintf(stderr,"\n");
Fatal("%s: PRE doesn't occur first--are you sure this is a DVI file?\n\n",
G_progname);
}
i = SignExtend(dvifp, 1);
if (i != DVIFORMAT) {
fprintf(stderr,"\n");
Fatal("%s: DVI format = %d, can only process DVI format %d files\n\n",
G_progname, i, DVIFORMAT);
}
#ifdef CREOPT
if( G_create )
outfp = OpenOutput();
else
#endif CREOPT
outfp = stdout;
/* it is important that these be the very first things output !!! */
if( G_header )
CopyFile( HDRFILE );
for( i=0; i<nif; i++ ) /* copy all included files */
CopyFile( Ifile[i] );
EMIT(outfp, "TeXDict begin @start\n");
EMIT(outfp, "%%%%Title: %s\n", filename);
EMIT(outfp, "%%%%Creator: %s\n", G_progname);
EMIT(outfp, "%%%%EndProlog\n");
for( i=0; i<nps; i++ ) /* prefix valid PostScript options with a "@" */
if( ChkOpt(PScmd[i]) )
EMIT(outfp, "@%s\n", PScmd[i]);
else
Fatal( "%s is an invalid option\n", PScmd[i] );
if( ncopies > 1 )
EMIT(outfp, "%d @copies\n", ncopies);
if (Reverse) {
ReadPostAmble(PreLoad);
fseek(dvifp, ppagep, 0);
}
else {
if (PreLoad) {
ReadPostAmble(TRUE);
fseek(dvifp, (long) 14, 0);
}
else {
num = NoSignExtend(dvifp, 4);
den = NoSignExtend(dvifp, 4);
mag = NoSignExtend(dvifp, 4);
#ifdef USEGLOBALMAG
if( usermag > 0 && usermag != mag )
fprintf(stderr, "DVI magnification of %d over-ridden by user mag of %d\n", mag, usermag );
#endif
if( usermag > 0 ) mag = usermag;
#ifndef USEGLOBALMAG
if( mag != 1000 ) fprintf(stderr, "Magnification of %d ignored.\n", mag);
#endif
hconv = DoConv(num, den, hconvResolution);
vconv = DoConv(num, den, vconvResolution);
}
k = NoSignExtend(dvifp, 1);
GetBytes(dvifp, n, k);
}
PassNo = 0;
while (TRUE)
switch (command=NoSignExtend(dvifp, 1)) {
case SET1:case SET2:case SET3:case SET4:
val = NoSignExtend(dvifp, command-SET1+1);
if (!SkipMode) SetChar(val, command, PassNo);
break;
case SET_RULE:
val = NoSignExtend(dvifp, 4);
val2 = NoSignExtend(dvifp, 4);
if (Emitting) SetRule(val, val2, 1);
break;
case PUT1:case PUT2:case PUT3:case PUT4:
val = NoSignExtend(dvifp,command-PUT1+1);
if (!SkipMode) SetChar(val, command, PassNo);
break;
case PUT_RULE:
val = NoSignExtend(dvifp, 4);
val2 = NoSignExtend(dvifp, 4);
if (Emitting) SetRule(val, val2, 0);
break;
case NOP:
break;
case BOP:
cpagep = ftell(dvifp) - 1;
for (i=0; i<=9; i++)
count[i] = NoSignExtend(dvifp, 4);
ppagep = NoSignExtend(dvifp, 4);
h = v = w = x = y = z = 0;
hh = vv = 0;
sp = 0;
fontptr = NULL;
prevfont = NULL;
if( count[0] < FirstPage || count[0] > LastPage )
SkipMode = TRUE;
else
SkipMode = FALSE;
Emitting = (PassNo != 0) && !SkipMode;
if( !SkipMode ) {
if( PassNo == 0) {
EMIT(outfp,"%d @bop0\n", count[0]);
#ifdef STATS
if( Stats ) {
Sndc0 = Sndc;
Stnc0 = Stnc;
Snbpx0 = Snbpxl;
}
#endif
if( !G_quiet )
fprintf(stderr, "[%d", count[0] );
}
else
EMIT(outfp,"%d @bop1\n", count[0]);
}
break;
case EOP:
if( !SkipMode ) {
if( PassNo == 0 ) { /* start second pass on current page */
fseek(dvifp,cpagep,0);
PassNo = 1;
}
else { /* end of second pass, and of page processing */
EMIT(outfp,"@eop\n");
#ifdef STATS
if( Stats )
fprintf(stderr," - %d total ch, %d diff ch, %d pxl bytes]\n",
Stnc-Stnc0, Sndc-Sndc0, Snbpxl-Snbpx0);
else
#endif
if( !G_quiet ) {
fprintf(stderr,"] ");
if( (++ndone % 10) == 0 ) fprintf(stderr,"\n");
}
PassNo = 0;
}
}
else
PassNo = 0;
if( PassNo == 0 && Reverse ) {
if( ppagep > 0 )
fseek(dvifp, ppagep, 0);
else
AllDone();
}
break;
case PUSH:
if (sp >= STACKSIZE)
Fatal("stack overflow");
stack[sp].h = h;
stack[sp].v = v;
stack[sp].w = w;
stack[sp].x = x;
stack[sp].y = y;
stack[sp].z = z;
sp++;
break;
case POP:
--sp;
if (sp < 0)
Fatal("stack underflow");
h = stack[sp].h;
v = stack[sp].v;
w = stack[sp].w;
x = stack[sp].x;
y = stack[sp].y;
z = stack[sp].z;
break;
case RIGHT1:case RIGHT2:case RIGHT3:case RIGHT4:
val = SignExtend(dvifp,command-RIGHT1+1);
if (Emitting) MoveOver(val);
break;
case W0:
if (Emitting) MoveOver(w);
break;
case W1:case W2:case W3:case W4:
w = SignExtend(dvifp,command-W1+1);
if (Emitting) MoveOver(w);
break;
case X0:
if (Emitting) MoveOver(x);
break;
case X1:case X2:case X3:case X4:
x = SignExtend(dvifp,command-X1+1);
if (Emitting) MoveOver(x);
break;
case DOWN1:case DOWN2:case DOWN3:case DOWN4:
val = SignExtend(dvifp,command-DOWN1+1);
if (Emitting) MoveDown(val);
break;
case Y0:
if (Emitting) MoveDown(y);
break;
case Y1:case Y2:case Y3:case Y4:
y = SignExtend(dvifp,command-Y1+1);
if (Emitting) MoveDown(y);
break;
case Z0:
if (Emitting) MoveDown(z);
break;
case Z1:case Z2:case Z3:case Z4:
z = SignExtend(dvifp,command-Z1+1);
if (Emitting) MoveDown(z);
break;
case FNT1:case FNT2:case FNT3:case FNT4:
if (!SkipMode) {
SetFntNum(NoSignExtend(dvifp,command-FNT1+1), Emitting);
}
break;
case XXX1:case XXX2:case XXX3:case XXX4:
k = NoSignExtend(dvifp,command-XXX1+1);
GetBytes(dvifp, SpecialStr, k);
if(Emitting) DoSpecial(SpecialStr, k);
break;
case FNT_DEF1:case FNT_DEF2:case FNT_DEF3:case FNT_DEF4:
k = NoSignExtend(dvifp, command-FNT_DEF1+1);
if (PreLoad || HasBeenRead(k) )
{
SkipFontDef (k);
}
else
{
ReadFontDef (k);
}
break;
case PRE:
Fatal("PRE occurs within file");
break;
case POST:
AllDone();
break;
case POST_POST:
Fatal("POST_POST with no preceding POST");
break;
default:
if (command >= FONT_00 && command <= FONT_63)
{if (!SkipMode)
SetFntNum(command - FONT_00, Emitting);}
else if (command >= SETC_000 && command <= SETC_127)
{if (!SkipMode) SetString(command, PassNo);}
else
Fatal("%d is an undefined command", command);
break;
}
}
/*-->AbortRun*/
/**********************************************************************/
/*************************** AbortRun *******************************/
/**********************************************************************/
void
AbortRun(code)
int code;
{
exit(code);
}
/*-->ActualFactor*/
/**********************************************************************/
/************************** ActualFactor ****************************/
/**********************************************************************/
float /* compute the actual size factor given the approximation */
ActualFactor(unmodsize)
int unmodsize; /* actually factor * 1000 */
{
float realsize; /* the actual magnification factor */
realsize = (float)unmodsize / 1000.0;
/* a real hack to correct for rounding in some cases--rkf */
if(unmodsize==1095) realsize = 1.095445; /*stephalf*/
else if(unmodsize==1315) realsize=1.314534; /*stepihalf*/
else if(unmodsize==1577) realsize=1.577441; /*stepiihalf*/
else if(unmodsize==1893) realsize=1.892929; /*stepiiihalf*/
else if(unmodsize==2074) realsize=2.0736; /*stepiv*/
else if(unmodsize==2488) realsize=2.48832; /*stepv*/
else if(unmodsize==2986) realsize=2.985984; /*stepiv*/
/* the remaining magnification steps are represented with sufficient
accuracy already */
return(realsize);
}
/*-->AllDone*/
/**********************************************************************/
/****************************** AllDone ******************************/
/**********************************************************************/
void
AllDone()
{
char t;
struct font_entry *p;
int per;
EMIT(outfp,"@end\n");
if( !G_quiet ) fprintf(stderr,"\n");
#ifdef CREOPT
if( G_create ) {
fclose(outfp);
if( !G_quiet ) fprintf(stderr, "Output written on \"%s\"\n", outfname );
}
#endif CREOPT
if (G_errenc && G_logging == 1 && G_logfile) {
fseek(G_logfp, 0, 0);
while ((t=getc(G_logfp)) != EOF)
putchar(t);
}
if (G_logging == 1 && G_logfile) printf("Log file created\n");
#ifdef STATS
if (Stats) {
fprintf( stderr, "Total chars diff chars pxl bytes\n" );
fprintf( stderr, " # %% # %% # %%\n" );
fprintf( stderr, "------- --- ------ --- ----- ---\n" );
for( p=hfontptr; p!=NULL; p=p->next ) {
fprintf( stderr, "%7d%4d", p->ncts, (100*p->ncts + Stnc/2)/Stnc );
fprintf( stderr, "%9d%4d", p->ncdl, (100*p->ncdl + Sndc/2)/Sndc );
fprintf( stderr, "%8d%4d", p->nbpxl, (100*p->nbpxl + Snbpxl/2)/Snbpxl );
fprintf( stderr, " %s\n", p->psname );
}
fprintf(stderr, "\nTotal number of characters typeset: %d\n", Stnc);
fprintf(stderr, "Number of different characters downloaded: %d\n", Sndc);
fprintf(stderr, "Number of bytes of pxl data downloaded: %d\n", Snbpxl);
fprintf(stderr, "Optimal # of bytes of pxl data: %d\n", Sonbpx);
}
#endif
AbortRun(G_errenc);
}
/*-->ChkOpt*/ /* check a user supplied option for validity */
/*********************************************************************/
/****************************** ChkOpt *******************************/
/*********************************************************************/
#define ISOPT(s) if( EQ(str,s) ) return( TRUE )
int
ChkOpt( str )
char *str;
{
/* lcase(str); doesn't work */
ISOPT("note"); /* its a shame to build this into the program */
ISOPT("letter");
ISOPT("legal");
ISOPT("landscape");
ISOPT("manualfeed");
return( FALSE );
}
/*-->CopyFile*/ /* copy a file straight through to output */
/*********************************************************************/
/***************************** CopyFile ******************************/
/*********************************************************************/
void
CopyFile( str )
char *str;
{
FILE *spfp;
char t;
if( (spfp=fopen(str,"r")) == NULL ) {
fprintf(stderr,"Unable to open file %s\n", str );
return;
}
if( !G_quiet ) fprintf(stderr," [%s", str);
while( (t = getc(spfp)) != EOF ) {
EMITC(t);
}
fclose(spfp);
if( !G_quiet ) fprintf(stderr,"]");
}
/*-->DecodeArgs*/
/*********************************************************************/
/***************************** DecodeArgs ****************************/
/*********************************************************************/
void
DecodeArgs( argc, argv )
int argc;
char *argv[];
{
int argind; /* argument index for flags */
char curarea[STRSIZE]; /* current file area */
char curname[STRSIZE]; /* current file name */
char *tcp, *tcp1; /* temporary character pointers */
argind = 1;
while (argind < argc) {
tcp = argv[argind];
if (*tcp == '-')
switch(isupper(*++tcp) ? (*tcp-'A')+'a' : *tcp) {
case 'a': /* a selects different pxl font area */
PXLpath = argv[++argind];
break;
#ifdef CREOPT
case 'c': /* create an output file in spool area */
G_create = TRUE;
break;
#endif CREOPT
case 'd': /* d selects font pixel density */
#ifdef DEBUG
Debug = TRUE; /* and maybe Debug output too */
#endif
if( ++argind >= argc || sscanf(argv[argind], "%d", &FontDensity) != 1 )
Fatal("Argument is not a valid integer\n", 0);
hconvResolution = FontDensity;
vconvResolution = FontDensity;
Ifile[nif++] = "/usr/local/lib/tex/tex6.ps";
G_header = FALSE;
G_quiet = FALSE;
break;
case 'f': /* next arg is starting pagenumber */
if( ++argind >= argc || sscanf(argv[argind], "%d", &FirstPage) != 1 )
Fatal("Argument is not a valid integer\n", 0);
break;
case 'h': /* don't copy PostScript header file through to output */
G_header = FALSE;
break;
case 'i': /* next arg is a PostScript file to copy */
if( ++argind >= argc )
Fatal("No argument following -i\n", 0);
Ifile[nif++] = argv[argind];
break;
case 'l': /* l prohibits logging of errors */
G_logging = -1;
break;
#ifdef USEGLOBALMAG
case 'm': /* specify magnification to use */
switch( tolower(*++tcp) ) {
case '\0': /* next arg is a magnification to use */
if( ++argind >= argc || sscanf(argv[argind], "%d", &usermag) != 1 )
Fatal("Argument is not a valid integer\n", 0);
break;
case '0': usermag = 1000; break;
case 'h': usermag = 1095; break;
case '1': usermag = 1200; break;
case '2': usermag = 1440; break;
case '3': usermag = 1728; break;
case '4': usermag = 2074; break;
case '5': usermag = 2488; break;
default: Fatal("%c is a bad mag step\n", *tcp);
}
break;
#endif
case 'n': /* next arg is number of copies to print */
if( ++argind >= argc || sscanf(argv[argind], "%d", &ncopies) != 1 )
Fatal("Argument is not a valid integer\n", 0);
break;
case 'o': /* next arg is a PostScript command to send */
if( ++argind >= argc )
Fatal("No argument following -o\n", 0);
PScmd[nps++] = argv[argind];
break;
case 'p': /* p prohibits pre-font loading */
PreLoad = 0;
Reverse = FALSE; /* must then process in forward order */
break;
case 'q': /* quiet operation */
G_quiet = TRUE;
break;
case 'r': /* don't process pages in reverse order */
Reverse = FALSE;
break;
#ifdef STATS
case 's': /* print some statistics */
Stats = TRUE;
break;
#endif
case 't': /* next arg is ending pagenumber */
if( ++argind >= argc || sscanf(argv[argind], "%d", &LastPage) != 1 )
Fatal("Argument is not a valid integer\n", 0);
break;
case 'w': /* don't print out warnings */
G_nowarn = TRUE;
break;
default:
printf("%c is not a legal flag\n", *tcp);
}
else {
tcp = rindex(argv[argind], '/'); /* split into directory + file name */
if (tcp == NULL) {
curarea[0] = '\0';
tcp = argv[argind];
}
else {
strcpy(curarea, argv[argind]);
curarea[tcp-argv[argind]+1] = '\0';
tcp += 1;
}
strcpy(curname, tcp);
tcp1 = rindex(tcp, '.'); /* split into file name + extension */
if (tcp1 == NULL) {
strcpy(rootname, curname);
strcat(curname, ".dvi");
}
else {
*tcp1 = '\0';
strcpy(rootname, curname);
*tcp1 = '.';
}
strcpy(filename, curarea);
strcat(filename, curname);
if ((dvifp=BINARYOPEN(filename,"r")) == NULL) {
fprintf(stderr,"\n");
fprintf(stderr,"%s: can't find DVI file \"%s\"\n\n", G_progname, filename);
AbortRun(1);
}
strcpy(G_Logname, curname);
strcat(G_Logname, ".log");
}
argind++;
}
if (dvifp == NULL) {
fprintf(stderr,
"\nusage: %s [-a area] [-c] [-h] [-o option] [-p] [-s] [-r] [-f n] [-t n] [-m{0|h|1|2|3|4| mag] [-a fontarea] dvifile\n\n",
G_progname);
AbortRun(1);
}
}
/*-->DoConv*/
/*********************************************************************/
/******************************** DoConv ***************************/
/*********************************************************************/
int DoConv(num, den, convResolution)
{
register float conv;
conv = ((float)num/(float)den) *
#ifdef USEGLOBALMAG
/* ActualFactor(mag) * why was this in as Actual Factor? jls */
((float) mag/1000.0) *
#endif
((float)convResolution/254000.0);
return((int) (1.0 / conv + 0.5));
}
/*-->DoSpecial*/
/*********************************************************************/
/***************************** DoSpecial ***************************/
/*********************************************************************/
typedef enum {None, String, Integer, Number, Dimension} ValTyp;
typedef struct {
char *Key; /* the keyword string */
char *Val; /* the value string */
ValTyp vt; /* the value type */
union { /* the decoded value */
int i;
float n;
} v;
} KeyWord;
typedef struct {
char *Entry;
ValTyp Type;
} KeyDesc;
#define PSFILE 0
KeyDesc KeyTab[] = {{"psfile", String},
{"hsize", Dimension},
{"vsize", Dimension},
{"hoffset", Dimension},
{"voffset", Dimension},
{"hscale", Number},
{"vscale", Number}};
#define NKEYS (sizeof(KeyTab)/sizeof(KeyTab[0]))
void
DoSpecial( str, n ) /* interpret a \special command, made up of keyword=value pairs */
char *str;
int n;
{
char spbuf[STRSIZE];
char *sf = NULL;
KeyWord k;
int i;
str[n] = '\0';
spbuf[0] = '\0';
SetPosn(h, v);
EMITS("@beginspecial\n");
while( (str=GetKeyStr(str,&k)) != NULL ) { /* get all keyword-value pairs */
/* for compatibility, single words are taken as file names */
if( k.vt == None && access(k.Key,0) == 0) {
if( sf ) Warning(" More than one \\special file name given. %s ignored", sf );
strcpy(spbuf, k.Key);
sf = spbuf;
}
else if( GetKeyVal( &k, KeyTab, NKEYS, &i ) && i != -1 ) {
if( i == PSFILE ) {
if( sf ) Warning(" More than one \\special file name given. %s ignored", sf );
strcpy(spbuf, k.Val);
sf = spbuf;
}
else /* the keywords are simply output as PS procedure calls */
EMIT(outfp, "%f @%s\n", k.v.n, KeyTab[i].Entry);
}
else Warning(" Invalid keyword or value in \\special - \"%s\" ignored", k.Key );
}
EMITS("@setspecial\n");
if( sf )
CopyFile( sf );
else
Warning(" No special file name provided.");
EMITS("@endspecial\n");
}
/*-->EmitChar*/
/**********************************************************************/
/**************************** EmitChar ******************************/
/**********************************************************************/
#ifndef USEPXL
/* assume we just called readbits() */
#endif
void
EmitChar(c, ce) /* output a character bitmap */
int c;
struct char_entry *ce;
{
#ifdef USEPXL
int i;
register int j;
#endif
register unsigned char *sl;
#ifdef USEPXL
register int cc;
int nbpl, nwpl;
#else
register int cc, i;
int nbpl;
#endif
float cw; /* char width, in "dots" - we rely on PostScript maintaining sufficient accuracy */
/* Output in PostScript coord system (y +ive up, x +ive right)
(0,0) of char bitmap at lower left. Output scan lines
from bottom to top */
if( fontptr->ncdl == 0 ) /* open font dict before first char */
EMIT(outfp,"[ %d ] /%s @newfont\n", fontptr->font_mag, fontptr->psname );
if( fontptr != prevfont ) { /* because this isn't done on pass 0 */
EMIT(outfp,"%s @sf\n", fontptr->psname);
prevfont = fontptr;
}
EMITS("[<");
cc = 2;
#ifdef USEPXL
nbpl = (ce->width + 7) >> 3;
nwpl = (ce->width + 31) >> 5;
for(i = ce->height-1; i >= 0; i--) {
sl = (unsigned char *)(ce->where.address.pixptr + i*nwpl);
for(j = 0; j < nbpl; j++, sl++) {
if( cc > 100 ) {
EMITS("\n "); cc = 2; }
EMITH(*sl);
cc += 2;
}
#else
nbpl = (num_cols + 7) >> 3;
for(i=0, sl=bits; i<num_bytes; i++, sl++) {
if( cc > 100 ) { EMITS("\n "); cc = 2; }
EMITH(*sl);
cc += 2;
#endif
}
cw = (float)ce->tfmw / (float)hconv;
EMIT(outfp,"> %d %d %d %d %.3f] %d @dc\n",
#ifdef USEPXL
nbpl<<3, ce->height, ce->xOffset, (((int)ce->height)-ce->yOffset)-1, cw,
c);
#else
nbpl<<3, num_rows, x_offset, y_offset, cw, c);
#endif
fontptr->ncdl += 1;
#ifdef STATS
#ifdef USEPXL
Snbpxl += nbpl*ce->height;
fontptr->nbpxl += nbpl*ce->height;
Sonbpx += (ce->width*ce->height + 7) >> 3;
#else
Snbpxl += nbpl*num_rows;
fontptr->nbpxl += nbpl*num_rows;
Sonbpx += (num_cols*num_rows + 7) >> 3;
#endif
Sndc += 1;
#endif
}
/*-->Fatal*/
/**********************************************************************/
/****************************** Fatal *******************************/
/**********************************************************************/
void
Fatal(fmt, a, b, c)/* issue a fatal error message */
char *fmt; /* format */
char *a, *b, *c; /* arguments */
{
if (G_logging == 1 && G_logfile)
{
fprintf(G_logfp, "%s: FATAL--", G_progname);
fprintf(G_logfp, fmt, a, b, c);
fprintf(G_logfp, "\n");
}
fprintf(stderr,"\n");
fprintf(stderr, "%s: FATAL--", G_progname);
fprintf(stderr, fmt, a, b, c);
fprintf(stderr, "\n\n");
if (G_logging == 1) printf("Log file created\n");
#ifdef CREOPT
if (G_create && outfp != NULL) {
fclose(outfp);
unlink(outfname);
}
#endif CREOPT
AbortRun(1);
}
/*-->FindPostAmblePtr*/
/**********************************************************************/
/************************ FindPostAmblePtr **************************/
/**********************************************************************/
void
FindPostAmblePtr(postambleptr)
long *postambleptr;
/* this routine will move to the end of the file and find the start
of the postamble */
{
int i;
fseek (dvifp, (long) 0, 2); /* goto end of file */
*postambleptr = ftell (dvifp) - 4;
fseek (dvifp, *postambleptr, 0);
while (TRUE) {
fseek (dvifp, --(*postambleptr), 0);
if (((i = NoSignExtend(dvifp, 1)) != 223) &&
(i != DVIFORMAT))
Fatal ("Bad end of DVI file");
if (i == DVIFORMAT)
break;
}
fseek (dvifp, (*postambleptr) - 4, 0);
(*postambleptr) = NoSignExtend(dvifp, 4);
fseek (dvifp, *postambleptr, 0);
}
/*-->GetBytes*/
/**********************************************************************/
/***************************** GetBytes *****************************/
/**********************************************************************/
void
GetBytes(fp, cp, n) /* get n bytes from file fp */
register FILE *fp; /* file pointer */
register char *cp; /* character pointer */
register int n; /* number of bytes */
{
while (n--)
*cp++ = getc(fp);
}
/*-->GetFontDef*/
/**********************************************************************/
/**************************** GetFontDef *****************************/
/**********************************************************************/
void
GetFontDef()
/***********************************************************************
Read the font definitions as they are in the postamble of the DVI
file.
***********************************************************************/
{
char str[50], *calloc ();
unsigned char byte;
int i, fnamelen;
while (((byte = NoSignExtend(dvifp, 1)) >= FNT_DEF1) &&
(byte <= FNT_DEF4)) {
switch (byte) {
case FNT_DEF1:
ReadFontDef (NoSignExtend(dvifp, 1));
break;
case FNT_DEF2:
ReadFontDef (NoSignExtend(dvifp, 2));
break;
case FNT_DEF3:
ReadFontDef (NoSignExtend(dvifp, 3));
break;
case FNT_DEF4:
ReadFontDef (NoSignExtend(dvifp, 4));
break;
default:
Fatal ("Bad byte value in font defs");
break;
}
}
if (byte != POST_POST)
Fatal ("POST_POST missing after fontdefs");
}
/*-->GetKeyStr*/
/**********************************************************************/
/***************************** GetKeyStr ****************************/
/**********************************************************************/
/* extract first keyword-value pair from string (value part may be null)
* return pointer to remainder of string
* return NULL if none found
*/
char KeyStr[STRSIZE];
char ValStr[STRSIZE];
char *GetKeyStr( str, kw )
char *str;
KeyWord *kw;
{
char *s, *k, *v, t;
if( !str ) return( NULL );
for( s=str; *s == ' '; s++ ) ; /* skip over blanks */
if( *s == '\0' ) return( NULL );
for( k=KeyStr; /* extract keyword portion */
*s != ' ' && *s != '\0' && *s != '=';
*k++ = *s++ ) ;
*k = '\0';
kw->Key = KeyStr;
kw->Val = v = NULL;
kw->vt = None;
for( ; *s == ' '; s++ ) ; /* skip over blanks */
if( *s != '=' ) /* look for "=" */
return( s );
for( s++ ; *s == ' '; s++ ) ; /* skip over blanks */
if( *s == '\'' || *s == '\"' ) /* get string delimiter */
t = *s++;
else
t = ' ';
for( v=ValStr; /* copy value portion up to delim */
*s != t && *s != '\0';
*v++ = *s++ ) ;
if( t != ' ' && *s == t ) s++;
*v = '\0';
kw->Val = ValStr;
kw->vt = String;
return( s );
}
/*-->GetKeyVal*/
/**********************************************************************/
/***************************** GetKeyVal ****************************/
/**********************************************************************/
/* get next keyword-value pair
* decode value according to table entry
*/
int GetKeyVal( kw, tab, nt, tno)
KeyWord *kw;
KeyDesc tab[];
int nt;
int *tno;
{
int i;
char c = '\0';
*tno = -1;
for(i=0; i<nt; i++)
if( IsSame(kw->Key, tab[i].Entry) ) {
*tno = i;
switch( tab[i].Type ) {
case None:
if( kw->vt != None ) return( FALSE );
break;
case String:
if( kw->vt != String ) return( FALSE );
break;
case Integer:
if( kw->vt != String ) return( FALSE );
if( sscanf(kw->Val,"%d%c", &(kw->v.i), &c) != 1
|| c != '\0' ) return( FALSE );
break;
case Number:
case Dimension:
if( kw->vt != String ) return( FALSE );
if( sscanf(kw->Val,"%f%c", &(kw->v.n), &c) != 1
|| c != '\0' ) return( FALSE );
break;
}
kw->vt = tab[i].Type;
return( TRUE );
}
return( TRUE );
}
/*-->HasBeenRead*/
/**********************************************************************/
/*************************** HasBeenRead ****************************/
/**********************************************************************/
int
HasBeenRead(k)
int k;
{
struct font_entry *ptr;
ptr = hfontptr;
while ((ptr!=NULL) && (ptr->k!=k))
ptr = ptr->next;
return( ptr != NULL );
}
/*-->IsSame*/
/**********************************************************************/
/******************************* IsSame *****************************/
/**********************************************************************/
int IsSame(a, b) /* compare strings, ignore case */
char *a, *b;
{
for( ; *a != '\0'; )
if( tolower(*a++) != tolower(*b++) ) return( FALSE );
return( *a == *b ? TRUE : FALSE );
}
/*-->lcase*/
/**********************************************************************/
/**************************** lcase *********************************/
/**********************************************************************/
void lcase(s)
char *s;
{
char *t;
for(t=s; *t != '\0'; t++)
*t = tolower(*t);
return;
}
/*-->MoveDown*/
/**********************************************************************/
/**************************** MoveDown ******************************/
/**********************************************************************/
void
MoveDown(a)
int a;
{
v += a;
}
/*-->MoveOver*/
/**********************************************************************/
/**************************** MoveOver ******************************/
/**********************************************************************/
void
MoveOver(b)
int b;
{
h += b;
}
/*-->NoSignExtend*/
/**********************************************************************/
/*************************** NoSignExtend ***************************/
/**********************************************************************/
int
NoSignExtend(fp, n) /* return n byte quantity from file fd */
register FILE *fp; /* file pointer */
register int n; /* number of bytes */
{
register int x; /* number being constructed */
x = 0;
while (n--) {
x <<= 8;
x |= getc(fp);
}
return(x);
}
/*-->OpenFontFile*/
/**********************************************************************/
/************************** OpenFontFile *****************************/
/**********************************************************************/
void
OpenFontFile()
/***********************************************************************
The original version of this dvi driver reopened the font file each
time the font changed, resulting in an enormous number of relatively
expensive file openings. This version keeps a cache of up to
MAXOPEN open files, so that when a font change is made, the file
pointer, pxlfp, can usually be updated from the cache. When the
file is not found in the cache, it must be opened. In this case,
the next empty slot in the cache is assigned, or if the cache is
full, the least used font file is closed and its slot reassigned for
the new file. Identification of the least used file is based on the
counts of the number of times each file has been "opened" by this
routine. On return, the file pointer is always repositioned to the
beginning of the file.
***********************************************************************/
{
register int i,least_used,current;
#ifdef DEBUG
if (Debug) printf("Open Font file\n");
#endif
if (pfontptr == fontptr)
return; /* we need not have been called */
for (current = 1;
(current <= nopen) &&
(pixel_files[current].pixel_file_id != fontptr->font_file_id);
++current)
; /* try to find file in open list */
if (current <= nopen) /* file already open */
{
if( (pxlfp = pixel_files[current].pixel_file_id) != NO_FILE )
fseek(pxlfp,0,0); /* reposition to start of file */
}
else /* file not in open list */
{
if (nopen < MAXOPEN) /* just add it to list */
current = ++nopen;
else /* list full -- find least used file, */
{ /* close it, and reuse slot for new file */
least_used = 1;
for (i = 2; i <= MAXOPEN; ++i)
if (pixel_files[least_used].use_count >
pixel_files[i].use_count)
least_used = i;
if (pixel_files[least_used].pixel_file_id != NO_FILE) {
FILE *fid;
struct font_entry *fp;
fid = pixel_files[least_used].pixel_file_id;
fp=hfontptr; /* mark file as being closed in the entry */
while (fp!=NULL && fp->font_file_id != fid)
fp = fp->next;
if (fp==NULL)
Fatal("Open file %x not found in font entry list.\n", fid);
else {
fp->font_file_id = NULL;
#ifdef STATS
if (Stats)
fprintf(stderr, "PXL file %s closed.\n", fp->name);
#endif
}
fclose( fid );
}
current = least_used;
}
if ((pxlfp=BINARYOPEN(fontptr->name,"r")) == NULL) {
Warning("PXL file %s could not be opened",fontptr->name);
pxlfp = NO_FILE;
}
else {
#ifdef STATS
if (Stats)
fprintf(stderr, "PXL file %s opened.\n", fontptr->name);
#endif
}
pixel_files[current].pixel_file_id = pxlfp;
pixel_files[current].use_count = 0;
}
pfontptr = fontptr; /* make previous = current font */
fontptr->font_file_id = pxlfp; /* set file identifier */
pixel_files[current].use_count++; /* update reference count */
#ifndef USEPXL
gfin = pxlfp; /* used in gf reader */
#endif
}
#ifdef CREOPT
/*-->OpenOutput*/ /* generate a unique file name and open it */
/**********************************************************************/
/*************************** OpenOutput *******************************/
/**********************************************************************/
FILE*
OpenOutput()
{
FILE* fp;
long t;
int n = 0;
char *p, *pp, b[256];
int nd;
time( &t );
t = t % 100000;
strcpy( outfname, SPOOLFILE );
sprintf( b, "%s.%s.%x", logname(), rootname, t );
if( (nd=strlen(b)-MAXFLEN) > 0 ) {
for(pp=(p=rindex(b,'.')); p && *p != '\0'; *(pp-nd) = *p++, pp++) ;
*(pp-nd) = '\0';
}
strcat( outfname, b );
while( access(outfname,0) == 0 ) {
n += 1;
if( n > 10 )
Fatal( "Unable to create a unique output file name: %s\n", outfname );
strcpy( outfname, SPOOLFILE );
sprintf( b, "%s.%s.%x.%d", logname(), rootname, t, n );
if( (nd=strlen(b)-MAXFLEN) > 0 ) {
for(pp=(p=rindex(b,'.')); p && *p != '\0'; *(pp-nd) = *p++, pp++) ;
*(pp-nd) = '\0';
}
strcat( outfname, b );
}
if( (fp=fopen(outfname,"w")) == NULL )
Fatal("Unable to create output file: %s\n", outfname);
return( fp );
}
#endif CREOPT
/*-->PixRound*/
/**********************************************************************/
/***************************** PixRound *****************************/
/**********************************************************************/
int
PixRound(x, conv) /* return rounded number of pixels */
register int x; /* in DVI units */
int conv; /* conversion factor */
{
return((int)((x + (conv >> 1)) / conv));
}
/*-->PutInt*/
/**********************************************************************/
/***************************** PutInt *******************************/
/**********************************************************************/
void
PutInt(n) /* output an integer followed by a space */
register int n;
{
char buf[10];
register char *b;
if( n == 0 )
EMITC('0');
else {
if( n < 0 ) {
EMITC('-');
n = -n;
}
for(b=buf; n>0; ) {
*b++ = digit[n%10];
n /= 10;
}
for( ; b>buf; )
EMITC(*--b);
}
EMITC(' ');
}
/*-->PutOct*/
/**********************************************************************/
/***************************** PutOct *******************************/
/**********************************************************************/
void
PutOct(n) /* output an 3 digit octal number preceded by a "\" */
register int n;
{
EMITC( '\\' );
EMITC( digit[(n&0300)>>6] );
EMITC( digit[(n&0070)>>3] );
EMITC( digit[n&0007] );
}
/*-->ReadFontDef*/
/**********************************************************************/
/**************************** ReadFontDef ***************************/
/**********************************************************************/
int
ReadFontDef(k)
int k;
{
int t, i;
register struct font_entry *tfontptr;/* temporary font_entry pointer */
register struct char_entry *tcharptr;/* temporary char_entry pointer */
char *direct, *tcp, *tcp1;
int found;
char curarea[STRSIZE];
int cmag;
int nmag;
char nname[NFNTCHARS];
if ((tfontptr = NEW(struct font_entry)) == NULL)
Fatal("can't malloc space for font_entry");
tfontptr->next = hfontptr;
tfontptr->font_file_id = NULL;
fontptr = hfontptr = tfontptr;
tfontptr->ncdl = 0;
#ifdef STATS
tfontptr->nbpxl = 0;
tfontptr->ncts = 0;
#endif
tfontptr->k = k;
tfontptr->c = NoSignExtend(dvifp, 4); /* checksum */
tfontptr->s = NoSignExtend(dvifp, 4); /* space size */
tfontptr->d = NoSignExtend(dvifp, 4); /* design size */
tfontptr->a = NoSignExtend(dvifp, 1); /* area length for font name */
tfontptr->l = NoSignExtend(dvifp, 1); /* device length */
GetBytes(dvifp, tfontptr->n, tfontptr->a+tfontptr->l);
tfontptr->n[tfontptr->a+tfontptr->l] = '\0';
tfontptr->font_space = tfontptr->s/6; /* never used */
tfontptr->font_mag = (int)((ActualFactor((int)(((float)tfontptr->s/
(float)tfontptr->d)*1000.0 + 0.5)) *
#ifdef USEGLOBALMAG
ActualFactor(mag) *
#endif
#ifdef USEPXL
(float)FontDensity * 5.0) + 0.5);
#else
(float)FontDensity) + 0.5);
#endif
if (!findfile(&PXLpath,1,"",tfontptr->n,tfontptr->font_mag,tfontptr->name,
nname, &nmag))
Fatal("no font %s.%d",tfontptr->n,mag);
sprintf(tfontptr->psname, "%s.%d", tfontptr->n, tfontptr->font_mag);
if (tfontptr != pfontptr)
OpenFontFile();
#ifdef USEPXL
if ( pxlfp == NO_FILE ) { /* allow missing pxl files */
tfontptr->magnification = 0;
tfontptr->designsize = 0;
for (i = FIRSTFNTCHAR; i <= LASTFNTCHAR; i++) {
#else
for (i = FIRSTFNTCHAR; i <= LASTFNTCHAR; i++) {
#endif
tcharptr = &(tfontptr->ch[i]);
#ifdef USEPXL
tcharptr->width = 0;
tcharptr->height = 0;
tcharptr->xOffset= 0;
tcharptr->yOffset = 0;
#endif
tcharptr->where.isloaded = FALSE;
tcharptr->where.address.fileOffset = NONEXISTENT;
tcharptr->tfmw = 0;
}
#ifdef USEPXL
return;
}
if ((t = NoSignExtend(pxlfp, 4)) != PXLID)
Fatal("PXL ID = %d, can only process PXL ID = %d files",
t, PXLID);
fseek(pxlfp, -20, 2);
t = NoSignExtend(pxlfp, 4);
if ((tfontptr->c != 0) && (t != 0) && (tfontptr->c != t))
Warning("font = \"%s\",\n-->font checksum = %d,\n-->dvi checksum = %d",
tfontptr->name, tfontptr->c, t);
tfontptr->magnification = NoSignExtend(pxlfp, 4);
tfontptr->designsize = NoSignExtend(pxlfp, 4);
fseek(pxlfp, NoSignExtend(pxlfp, 4) * 4, 0);
for (i = FIRSTFNTCHAR; i <= LASTFNTCHAR; i++) {
tcharptr = &(tfontptr->ch[i]);
tcharptr->width = NoSignExtend(pxlfp, 2);
tcharptr->height = NoSignExtend(pxlfp, 2);
tcharptr->xOffset= SignExtend(pxlfp, 2);
tcharptr->yOffset = SignExtend(pxlfp, 2);
tcharptr->where.isloaded = FALSE;
tcharptr->where.address.fileOffset = NoSignExtend(pxlfp, 4) * 4;
tcharptr->tfmw = ((float)NoSignExtend(pxlfp, 4)*(float)tfontptr->s) /
(float)(1<<20);
#else
if ( pxlfp == NO_FILE ) /* allow missing pxl files */
return;
gfin = pxlfp;
seekpost();
readpost();
if ((tfontptr->c != 0) && (checksum != 0) && (tfontptr->c != checksum))
Warning("font = \"%s\",\n-->font checksum = %d,\n-->dvi checksum = %d",
tfontptr->name, tfontptr->c, checksum);
for(i=FIRSTFNTCHAR; i<=LASTFNTCHAR; i++) {
if (char_exists[i]) {
tcharptr = &(tfontptr->ch[i]);
tcharptr->tfmw = ((float)tfm_wd[i]*(float)tfontptr->s) /
(float)(1<<20);
tcharptr->where.address.fileOffset = char_pointer[i];
}
#endif
}
}
/*-->ReadPostAmble*/
/**********************************************************************/
/************************** ReadPostAmble ***************************/
/**********************************************************************/
void
ReadPostAmble(load)
int load;
/***********************************************************************
This routine is used to read in the postamble values. It
initializes the magnification and checks the stack height prior to
starting printing the document.
***********************************************************************/
{
FindPostAmblePtr (&postambleptr);
if (NoSignExtend(dvifp, 1) != POST)
Fatal ("POST missing at head of postamble");
#ifdef DEBUG
if (Debug) fprintf (stderr, "got POST command\n");
#endif
ppagep = NoSignExtend(dvifp, 4);
num = NoSignExtend(dvifp, 4);
den = NoSignExtend(dvifp, 4);
mag = NoSignExtend(dvifp, 4);
#ifdef USEGLOBALMAG
if( usermag > 0 && usermag != mag )
fprintf(stderr, "DVI magnification of %d over-ridden by user mag of %d\n", mag, usermag );
#endif
if( usermag > 0 ) mag = usermag;
#ifndef USEGLOBALMAG
if( mag != 1000 ) fprintf(stderr, "Magnification of %d ignored.\n", mag);
#endif
hconv = DoConv(num, den, hconvResolution);
vconv = DoConv(num, den, vconvResolution);
NoSignExtend(dvifp, 4); /* height-plus-depth of tallest page */
NoSignExtend(dvifp, 4); /* width of widest page */
if (NoSignExtend(dvifp, 2) >= STACKSIZE)
Fatal ("Stack size is too small");
NoSignExtend(dvifp, 2); /* this reads the number of pages in */
/* the DVI file */
#ifdef DEBUG
if (Debug) fprintf (stderr, "now reading font defs");
#endif
if (load) GetFontDef ();
}
/*-->SetChar*/
/**********************************************************************/
/***************************** SetChar ******************************/
/**********************************************************************/
int buffer[8];
LoadAChar(c, ptr)
int c;
register struct char_entry *ptr;
{
long *pr;
register int nints;
if (ptr->where.address.fileOffset == NONEXISTENT) {
ptr->where.address.pixptr = NULL;
ptr->where.isloaded = TRUE;
return;
}
OpenFontFile();
#ifdef USEPXL
fseek(pxlfp, ptr->where.address.fileOffset, 0);
nints = ((ptr->width + 31) >> 5) * ptr->height;
if( (pr = (long *)malloc( nints*sizeof(long) )) == NULL )
Fatal("Unable to allocate memory for char\n");
fread(pr, 4, nints, pxlfp);
ptr->where.address.pixptr = pr;
#else
fseek(gfin, ptr->where.address.fileOffset, 0);
gettochar();
readbits();
#endif
ptr->where.isloaded = TRUE;
EmitChar(c, ptr);
#ifdef USEPXL
/* we should really free the space used by the PXL data after this
point, but it is not large, and besides, we may want to be
more clever in the future, about sending bitmaps. So keep
the data around */
#endif
}
void
SetChar(c, command, PassNo)
int c, command, PassNo;
{
register struct char_entry *ptr; /* temporary char_entry pointer */
int k;
ptr = &(fontptr->ch[c]);
if (!ptr->where.isloaded) LoadAChar(c, ptr);
if (PassNo==0) return;
SetPosn(h,v);
if (fontptr->font_file_id != NO_FILE) { /* ignore missing fonts */
EMITN(c); EMITS("c\n");
hh += ptr->tfmw;
}
if (command <= SET4)
h += ptr->tfmw;
#ifdef STATS
Stnc += 1;
fontptr->ncts += 1;
#endif
}
/*-->SetFntNum*/
/**********************************************************************/
/**************************** SetFntNum *****************************/
/**********************************************************************/
void
SetFntNum(k, Emitting)
int k, Emitting;
/* this routine is used to specify the font to be used in printing future
characters */
{
fontptr = hfontptr;
while ((fontptr!=NULL) && (fontptr->k!=k))
fontptr = fontptr->next;
if (fontptr == NULL)
Fatal("font %d undefined", k);
if (Emitting && (fontptr->font_file_id != NO_FILE) )
EMIT(outfp,"%s @sf\n", fontptr->psname);
}
/*-->SetPosn*/
/**********************************************************************/
/***************************** SetPosn ******************************/
/**********************************************************************/
void
SetPosn(x, y) /* output a positioning command */
int x, y;
{
int rx,ry;
#ifdef USERELPOS
if (y == vv) { /* use relative movement if just moving horizontally */
if ( x != hh ) {
EMITN(rx=PixRound(x-hh,hconv));
EMITS("r ");
hh += rx*hconv;
}
}
else {
#endif
EMITN(rx=PixRound(x,hconv));
EMITN(ry=PixRound(y,vconv));
EMITS("p ");
hh = rx*hconv; /* must know where device "really" is horizontally, for rel. posning. */
vv = y; /* but we always use direct positioning for vertical movement */
#ifdef USERELPOS
}
#endif
}
/*-->SetRule*/
/**********************************************************************/
/***************************** SetRule ******************************/
/**********************************************************************/
void
SetRule(a, b, Set)
int a, b;
BOOLEAN Set;
{ /* this routine will draw a rule */
if( a > 0 && b > 0 ) {
SetPosn(h,v); /* lower left corner */
EMITN(PixRound(b,hconv)); /* width */
EMITN(PixRound(a,vconv)); /* height */
EMITS("ru\n");
}
if (Set)
h += b;
}
/*-->SetString*/
/**********************************************************************/
/***************************** SetString ****************************/
/**********************************************************************/
void
SetString(firstch, PassNo) /* read and set a consecutive string of chars */
int firstch, PassNo;
{
char s[256];
register char *sp;
register int c;
register struct char_entry *ptr;
int len, hhold;
/* read entire string of chars */
for(c = firstch, sp = s; c >= SETC_000 && c <= SETC_127; ) {
*sp++ = c;
c = NoSignExtend(dvifp, 1);
}
fseek(dvifp, -1, 1); /* backup one character */
len = sp - s; /* NULL's are valid chars, so cant use for string termination */
/* ensure that all characters are loaded, */
for(sp = s; sp < s+len; sp++) {
ptr = &(fontptr->ch[*sp]);
if( !(ptr->where.isloaded) )
LoadAChar(*sp, ptr);
}
/* emit the instructions */
if( PassNo == 0 ) return;
SetPosn(h, v);
if( fontptr->font_file_id != NO_FILE ) { /* ignore missing fonts */
if( len <= 1 ) {
EMITN(s[0]);
EMITS("c\n");
}
else {
EMITC('(');
for( sp=s; sp < s+len; sp++) {
if( *sp < ' ' || *sp >= 0177 )
EMITO(*sp);
else if( *sp == '(' || *sp == ')' || *sp == '\\') {
EMITC('\\');
EMITC(*sp);
}
else
EMITC(*sp);
}
EMITS(") s\n");
}
}
/* compute updated positions */
hhold = hh;
for(sp = s; sp < s+len; sp++) {
ptr = &(fontptr->ch[*sp]);
h += ptr->tfmw;
hh += ptr->tfmw;
}
if( fontptr->font_file_id == NO_FILE ) hh = hhold; /* because it didn't move */
#ifdef STATS
Stnc += len;
fontptr->ncts += len;
#endif
}
/*-->SignExtend*/
/**********************************************************************/
/**************************** SignExtend ****************************/
/**********************************************************************/
int
SignExtend(fp, n) /* return n byte quantity from file fd */
register FILE *fp; /* file pointer */
register int n; /* number of bytes */
{
int n1; /* number of bytes */
register int x; /* number being constructed */
x = getc(fp); /* get first (high-order) byte */
n1 = n--;
while (n--) {
x <<= 8;
x |= getc(fp);
}
/* NOTE: This code assumes that the right-shift is an arithmetic, rather
than logical, shift which will propagate the sign bit right. According
to Kernighan and Ritchie, this is compiler dependent! */
x<<=32-8*n1;
x>>=32-8*n1; /* sign extend */
#ifdef DEBUG
if (Debug)
{
fprintf(stderr,"\tSignExtend(fp,%d)=%X\n",n1,x);
}
#endif
return(x);
}
/*-->SkipFontDef*/
/**********************************************************************/
/**************************** SkipFontDef ***************************/
/**********************************************************************/
void
SkipFontDef(k)
int k;
{
int a, l;
char n[STRSIZE];
NoSignExtend(dvifp, 4);
NoSignExtend(dvifp, 4);
NoSignExtend(dvifp, 4);
a = NoSignExtend(dvifp, 1);
l = NoSignExtend(dvifp, 1);
GetBytes(dvifp, n, a+l);
}
/*-->Warning*/
/**********************************************************************/
/***************************** Warning ******************************/
/**********************************************************************/
void
Warning(fmt, a, b, c) /* issue a warning */
char *fmt; /* format */
char *a, *b, *c; /* arguments */
{
if (G_logging == 0)
{
if (G_logfile)
G_logfp=fopen(G_Logname,"w+");
else {
G_logfp=stderr;
if( G_nowarn ) return;
}
G_logging = 1;
if (G_logfp == NULL) G_logging = -1;
}
G_errenc = TRUE;
if (G_logging == 1)
{
fprintf(G_logfp, fmt, a, b, c);
fprintf(G_logfp,"\n");
}
}
#ifndef USEPXL
void bad_gf(n)
int n;
{
Fatal("Bad gf file, case %d\n",n); /* See gf.c */
}
#endif