|
DataMuseum.dkPresents historical artifacts from the history of: DKUUG/EUUG Conference tapes |
This is an automatic "excavation" of a thematic subset of
See our Wiki for more about DKUUG/EUUG Conference tapes Excavated with: AutoArchaeologist - Free & Open Source Software. |
top - metrics - downloadIndex: T d
Length: 54573 (0xd52d)
Types: TextFile
Names: »dvisun.c«
└─⟦52210d11f⟧ Bits:30007239 EUUGD2: TeX 3 1992-12
└─⟦af5ba6c8e⟧ »unix3.0/DVIWARE.tar.Z«
└─⟦ca79c7339⟧
└─⟦this⟧ »DVIware/crt-viewers/sunview/fullscreen/dvisun.c«
/**********************************************************************/
/************************ Global Definitions ************************/
/**********************************************************************/
#define UCI
typedef int BOOLEAN;
/* NOTE: THIS DEFN OF NO_FILE IS DIFFERENT FROM THAT OF FONTS.C (DVIPAGE) */
#define NO_FILE ((FILE *)0)
#define NEW(A) ((A *) malloc(sizeof(A)))
#define DEBUG 1 /* for massive printing of input */
/* trace information; select by -d */
/* option after filename: */
/* dvibit filename -d */
#ifdef DEBUG
int Debug = 0;
#endif
#define ALLOW_INTERRUPT 1 /* to allow ^C for Debugging */
/* undefine for normal catch-^C mode */
#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 used to leave USEGLOBALMAG undefined because there is usually a limited
number font magnifications provided for this program and if it is
defined, any dvi file was as likely as not to fail. Now the program
reacts intelligently, by making font substitutions. */
/* ---fixme--- put something into the log file if it's not mag 1000 */
#define LO_FONT_FUZZ -9
#define HI_FONT_FUZZ 9
#define DVIFORMAT 2
#define FALSE 0
#define FIRSTPXLCHAR 0
#define FIRSTPKCHAR 0
#ifndef FONTAREA
#define FONTAREA "/usr/local/lib/tex/fonts/pk120"
#endif
#define LASTPKCHAR 255
#define MAXOPEN 15 /* limit on number of open font raster files */
#define NPKCHARS 256
#define READ 4 /* for access() */
#define RESOLUTION 120 /* is really 91.72192515 */
#define hconvRESOLUTION 118
#define vconvRESOLUTION 110
#define STACKSIZE 100
#define STRSIZE 257
#define TRUE 1
#define XSIZE 1024
#define YSIZE 800
/**********************************************************************/
/*********************** external definitions ***********************/
/**********************************************************************/
#include "commands.h"
#include <sgtty.h>
#include <signal.h>
#include <stdio.h>
#include <ctype.h>
#include <strings.h>
#include <pixrect/pixrect_hs.h>
extern struct pixrect *pr_open();
char *getenv();
char *index();
char *malloc();
char *rindex();
char *sprintf();
char *strcpy();
/* What on earth were these for ?
int dummyInt;
short dummyShort;
char dummyChar;
*/
int set_mode = PIX_COLOR(1) | PIX_SRC; /* default modes */
int draw_mode = PIX_SRC | PIX_DST;
/*
* int clr_mode = PIX_COLOR(0) | PIX_SRC;
* int invert = 0;
*/
/*-->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);
}
/*-->SignExtend*/
/**********************************************************************/
/**************************** SignExtend ****************************/
/**********************************************************************/
int
SignExtend(fp, n) /* return n byte quantity from file fp */
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)
{
(void)fprintf(stderr,"\tSignExtend(fp,%d)=%X\n",n1,x);
}
#endif
return(x);
}
/**********************************************************************/
/************************* 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();
void Fatal();
void FindPostAmblePtr();
void GetBytes();
void GetFontDef();
void GotInterrupt();
void InitTerm();
int InputWaiting();
void LoadRast();
void MoveDown();
void MoveOver();
void OpenFontFile();
int PixRound();
void PutOut();
int ReadFontDef();
void ReadPostAmble();
void ResetTerm();
void SetChar();
void SetFntNum();
void SetRule();
void SkipFontDef();
void Warning();
/**********************************************************************/
/************************* Global Variables *************************/
/**********************************************************************/
int G_errenc = FALSE; /* has an error been encountered? */
char G_Logname[STRSIZE]; /* name of log file, if created */
int G_interactive = TRUE; /* is the program running interactively */
/* (i.e., standard output not redirected)? */
int G_logging = 0; /* Is a log file being created? */
struct sgttyb G_intty; /* information about stdin if interactive */
FILE *G_logfp; /* log file pointer (for errors) */
char G_progname[STRSIZE]; /* program name */
struct char_entry { /* character entry */
unsigned short width, height;/* width and height in pixels */
short xOffset, yOffset; /* x offset and y offset in pixels */
struct {
int isloaded;
union {
int fileOffset;
struct pixrect *pixrectptr;
} address;
int flags;
} 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 name[STRSIZE]; /* full name of PK file */
FILE *font_file_id; /* file identifier (0 if none) */
int magnification; /* magnification read from PK file */
int designsize; /* design size read from PK file */
struct char_entry ch[NPKCHARS];/* character information */
struct font_entry *next;
};
struct pixel_list
{
FILE *pixel_file_id; /* file identifier */
int use_count; /* count of "opens" */
char name[STRSIZE]; /* Pathname of the font, for caching */
};
int hconv, vconv; /* converts DVI units to pixels */
int den; /* denominator specified in preamble */
FILE *dvifp; /* DVI file pointer */
struct font_entry *fontptr; /* font_entry pointer */
struct font_entry *hfontptr=NULL;/* font_entry pointer */
int h; /* current horizontal position */
int hh; /* current horizontal position in pixels */
int v; /* current vertical position */
int vv; /* current vertical position in pixels */
int mag; /* magnification specified in preamble */
int nopen; /* number of open PK files */
int num; /* numerator specified in preamble */
struct font_entry *pfontptr = NULL; /* previous font_entry pointer */
struct pixel_list pixel_files[MAXOPEN+1];
/* list of open PK file identifiers */
struct pixrect *screen, *display;
long postambleptr; /* Pointer to the postamble */
FILE *pkfp; /* PK file pointer */
char *PKpath; /* PK path name for search */
struct sgttyb tty; /* to see if program is running interactively */
#define XDEFAULT 0
#define YDEFAULT 180
int xdefault = XDEFAULT;
int ydefault = YDEFAULT;
int xscreen = XDEFAULT; yscreen = YDEFAULT;
/******************************** Unix only definitions ******************/
struct tchars tcb; /* information about special terminal chars */
/**********************************************************/
/**********************************************************************/
/******************************* 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 argind; /* argument index for flags */
int command; /* current command */
long cpagep; /* current page pointer */
int cpgnum; /* current value of TeXcount[0] */
char curarea[STRSIZE]; /* current file area */
char curext[STRSIZE]; /* current file extension */
char curname[STRSIZE]; /* current file name */
int FacingPages = FALSE;/* to get two pages on screen together */
char filename[STRSIZE]; /* file name */
register int i; /* command parameter; loop index */
int k; /* temporary parameter */
int leftxscr; /* xscreen value for lefthand page */
char n[STRSIZE]; /* command parameter */
int PagesLeft; /* Number of pages left to skip */
int PreLoad = TRUE; /* preload the font descriptions? */
long ppagep; /* previous page pointer */
int ppgnum; /* previous value of TeXcount[0] */
int rightxscr; /* xscreen value for righthand page */
int SkipEOP = FALSE; /* input is waiting from the terminal, skip to EOP */
int SkipMode = FALSE; /* in skip mode flag */
int sp; /* stack pointer */
struct stack_entry stack[STACKSIZE]; /* stack */
int TeXcount[10]; /* contents of TeX's count registers */
int t; /* temporary */
char tc; /* temporary character */
char *tcp, *tcp1; /* temporary character pointers */
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;
(void)strcpy(G_progname, argv[0]);
if (argc < 2) {
(void)fprintf(stderr, "\nusage: %s -fpl +pages dvifile\n\n", G_progname);
AbortRun(1);
}
if (ioctl(1,TIOCGETP,&tty) == -1)
G_interactive = FALSE;
/* get enviroment variables that allows for a path name in unix */
if ((PKpath=getenv("CRTPKFONTS")) == NULL)
PKpath = FONTAREA;
argind = 1;
while (argind < argc && (*argv[argind] == '-' || *argv[argind] == '+'))
{
tcp = argv[argind];
if (*tcp == '-')
{ tcp++;
switch(*tcp){
#ifdef DEBUG
case 'd': /* d selects Debug output */
Debug = TRUE;
break;
#endif
case 'f': /* d selects Debug output */
FacingPages = TRUE;
break;
case 'l': /* l prohibits logging of errors */
G_logging = -1;
break;
case 'p': /* p prohibits pre-font loading */
PreLoad = 0;
break;
default:
(void)printf("%c is not a legal flag\n", *tcp);
}
} else
{ (void)sscanf(&argv[argind][1], "%d", &PagesLeft);
SkipMode = TRUE;
PagesLeft++;
}
argind++;
}
tcp = rindex(argv[argind], '/');
if (tcp == NULL) {
curarea[0] = '\0';
tcp = argv[argind];
}
else {
(void)strncpy(curarea, argv[argind], tcp-argv[argind]+1);
tcp += 1;
}
tcp1 = index(tcp, '.');
if (tcp1 == NULL) {
(void)strcpy(curname, tcp);
tcp1 = index(tcp, '\0');
}
else
(void)strncpy(curname, tcp, tcp1-tcp);
(void)strcpy(curext, tcp1);
(void)strcpy(filename, curarea);
(void)strcat(filename, curname);
if (curext[0] == '\0')
(void)strcat(filename, ".dvi");
else
(void)strcat(filename, curext);
if ((dvifp=BINARYOPEN(filename,"r")) == NULL) {
(void)fprintf(stderr,"\n");
(void)fprintf(stderr,"%s: can't open \"%s\"\n\n", G_progname, filename);
AbortRun(1);
}
(void)strcpy(G_Logname, curname);
(void)strcat(G_Logname, ".dvi-log");
argind++;
while (argind < argc && (*argv[argind] == '-' || *argv[argind] == '+'))
{
tcp = argv[argind];
if (*tcp == '-')
{ tcp++;
switch(*tcp){
#ifdef DEBUG
case 'd': /* d selects Debug output */
Debug = TRUE;
break;
#endif
case 'l': /* l prohibits logging of errors */
G_logging = -1;
break;
case 'p': /* p prohibits pre-font loading */
PreLoad = 0;
break;
default:
(void)printf("%c is not a legal flag\n", *tcp);
}
} else
{ (void)sscanf(&argv[argind][1], "%d", &PagesLeft);
argind++;
SkipMode = TRUE;
PagesLeft++;
}
argind++;
}
/* The terminal characteristics must be saved before any attempt is made */
/* to process the DVI file, so that if the latter should fail, procedure */
/* Fatal will be able to correctly restore the terminal state. */
if (G_interactive) {
(void)ioctl(0, TIOCGETC, &tcb); /* get special characters */
(void)ioctl(0, TIOCGETP, &G_intty); /* get modes */
tty = G_intty;
tty.sg_flags |= CBREAK;
tty.sg_flags &= ~ECHO;
(void)ioctl(0, TIOCSETP, &tty); /* set modes */
}
leftxscr = xdefault; rightxscr = leftxscr - (XSIZE/2); /* set up two-page display */
#ifndef ALLOW_INTERRUPT
signal(SIGINT, SIG_IGN); /* ignore interrupts */
#endif
InitTerm();
#ifndef ALLOW_INTERRUPT
signal(SIGINT, GotInterrupt); /* catch interrupts */
#endif
if ((i = NoSignExtend(dvifp, 1)) != PRE) {
(void)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) {
(void)fprintf(stderr,"\n");
Fatal("%s: DVI format = %d, can only process DVI format %d files\n\n",
G_progname, i, DVIFORMAT);
}
if (PreLoad)
{
ReadPostAmble();
(void)fseek(dvifp, (off_t) 14, 0);
}
else
{
num = NoSignExtend(dvifp, 4);
den = NoSignExtend(dvifp, 4);
mag = NoSignExtend(dvifp, 4);
hconv = DoConv(num, den, hconvRESOLUTION);
vconv = DoConv(num, den, vconvRESOLUTION);
ppgnum = num; /* force clear on first page */
}
k = NoSignExtend(dvifp, 1);
GetBytes(dvifp, n, k);
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);
break;
case SET_RULE:
val = NoSignExtend(dvifp, 4);
val2 = NoSignExtend(dvifp, 4);
if (!SkipMode) SetRule(val, val2, 1);
break;
case PUT1:case PUT2:case PUT3:case PUT4:
val = NoSignExtend(dvifp,command-PUT1+1);
if (!SkipMode) SetChar(val, command);
break;
case PUT_RULE:
val = NoSignExtend(dvifp, 4);
val2 = NoSignExtend(dvifp, 4);
if (!SkipMode) SetRule(val, val2, 0);
break;
case NOP:
break;
case BOP:
cpagep = ftell(dvifp) - 1;
for (i=0; i<=9; i++)
TeXcount[i] = NoSignExtend(dvifp, 4);
ppagep = NoSignExtend(dvifp, 4);
cpgnum = TeXcount[0]; /* assumes convention of PLAIN.TEX */
if (FacingPages) {
if ((cpgnum % 2) == 1) {
if (cpgnum != ppgnum +1)
pr_rop(display, 0, 0, display->pr_size.x, display->pr_size.y, PIX_CLR, NULL, 0, 0);
xscreen = rightxscr;
}
else {
pr_rop(display, 0, 0, display->pr_size.x, display->pr_size.y, PIX_CLR, NULL, 0, 0);
xscreen = leftxscr;
}
}
else pr_rop(display, 0, 0, display->pr_size.x, display->pr_size.y, PIX_CLR, NULL, 0, 0);
h = v = w = x = y = z = 0;
sp = 0;
fontptr = NULL;
if (PagesLeft)
{ PagesLeft--;
if (PagesLeft <= 0) SkipMode = FALSE;
};
break;
case EOP:
if (SkipEOP) { SkipMode = FALSE; SkipEOP = FALSE; }
if (G_interactive && !SkipMode) {
t = FALSE;
while (!t) { /* sorry about this flow of control kludge */
t = TRUE;
tc = getchar();
if (tc==tcb.t_eofc) AllDone();
ppgnum = cpgnum;
switch (tc) {
case ' ': /* normal case - start next page */
case '\n':
xscreen = 0; yscreen = ydefault;
break;
case 'd': /* move down and redisplay */
yscreen += (YSIZE/2);
(void)fseek(dvifp, (off_t)cpagep, 0);
break;
case 'l': /* move left and redisplay */
xscreen -= (XSIZE/2);
(void)fseek(dvifp, cpagep, 0);
break;
case 'p': /* redisplay from previous page */
if (ppagep != -1) {
(void)fseek(dvifp, ppagep, 0);
}
else {
(void)fseek(dvifp, cpagep, 0);
xscreen = 0; yscreen = ydefault;
}
break;
case 'q': /* quit */
case 'e': /* exit */
AllDone();
break;
case 'r': /* move right and redisplay */
xscreen += (XSIZE/2);
(void)fseek(dvifp, cpagep, 0);
break;
case 'u': /* move up and redisplay */
yscreen -= (YSIZE/2);
(void)fseek(dvifp, cpagep, 0);
break;
case '-':
/* read in val */
val = ReadInt();
while (val-- && ppagep != -1)
{ (void)fseek(dvifp, ppagep, 0);
(void)NoSignExtend(dvifp, 1);
for(i=0; i<=9; i++)
(void)NoSignExtend(dvifp, 4);
cpagep = ppagep;
ppagep = NoSignExtend(dvifp, 4);
}
(void)fseek(dvifp, cpagep, 0);
xscreen = 0; yscreen = ydefault;
break;
case 'f': /* fine tune y */
ydefault = ReadInt();
yscreen = ydefault;
(void)fseek(dvifp, cpagep, 0);
break;
case 'h': /* fine tune hconv */
hconv = DoConv(num, den, ReadInt());
(void)fseek(dvifp, cpagep, 0);
break;
case 'v': /* fine tune hconv */
vconv = DoConv(num, den, ReadInt());
(void)fseek(dvifp, cpagep, 0);
break;
case '+':
/* read in val */
val = ReadInt();
SkipMode = TRUE;
PagesLeft = val;
break;
default:
t = FALSE;
}
}
}
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 (!SkipMode) MoveOver(val);
break;
case W0:
if (!SkipMode) MoveOver(w);
break;
case W1:case W2:case W3:case W4:
w = SignExtend(dvifp,command-W1+1);
if (!SkipMode) MoveOver(w);
break;
case X0:
if (!SkipMode) MoveOver(x);
break;
case X1:case X2:case X3:case X4:
x = SignExtend(dvifp,command-X1+1);
if (!SkipMode) MoveOver(x);
break;
case DOWN1:case DOWN2:case DOWN3:case DOWN4:
val = SignExtend(dvifp,command-DOWN1+1);
if (!SkipMode) MoveDown(val);
break;
case Y0:
if (!SkipMode) MoveDown(y);
break;
case Y1:case Y2:case Y3:case Y4:
y = SignExtend(dvifp,command-Y1+1);
if (!SkipMode) MoveDown(y);
break;
case Z0:
if (!SkipMode) MoveDown(z);
break;
case Z1:case Z2:case Z3:case Z4:
z = SignExtend(dvifp,command-Z1+1);
if (!SkipMode) MoveDown(z);
break;
case FNT1:case FNT2:case FNT3:case FNT4:
if (InputWaiting(stdin)) { SkipMode = TRUE; SkipEOP = TRUE;}
if (!SkipMode) SetFntNum(NoSignExtend(dvifp,command-FNT1+1));
break;
case XXX1:case XXX2:case XXX3:case XXX4:
k = NoSignExtend(dvifp,command-XXX1+1);
while (k--)
(void)NoSignExtend(dvifp, 1);
break;
case FNT_DEF1:case FNT_DEF2:case FNT_DEF3:case FNT_DEF4:
if (PreLoad)
{
SkipFontDef (NoSignExtend(dvifp, command-FNT_DEF1+1));
}
else
{
(void)ReadFontDef (NoSignExtend(dvifp, command-FNT_DEF1+1));
}
break;
case PRE:
Fatal("PRE occurs within file");
break;
case POST:
if (SkipMode) (void)fseek(dvifp, cpagep, 0);
else { (void)fseek(dvifp, (long) -2, 1); }
SkipMode = FALSE;
PagesLeft = 0;
break;
case POST_POST:
Fatal("POST_POST with no preceding POST");
break;
default:
if (command >= FONT_00 && command <= FONT_63)
{if (InputWaiting(stdin)) { SkipMode = TRUE; SkipEOP = TRUE;}
if (!SkipMode) SetFntNum(command - FONT_00);}
else if (command >= SETC_000 && command <= SETC_127)
{if (!SkipMode) SetChar(command - SETC_000, command);}
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==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;
pr_rop(display, 0, 0, display->pr_size.x, display->pr_size.y, PIX_CLR, NULL, 0, 0);
ResetTerm();
if (G_errenc && G_logging == 1) {
(void)fseek(G_logfp, 0, 0);
while ((t=getc(G_logfp)) != EOF)
putchar(t);
}
if (G_logging == 1) (void)printf("Log file created\n");
AbortRun(G_errenc);
}
/*-->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));
}
/*-->Fatal*/
/**********************************************************************/
/****************************** Fatal *******************************/
/**********************************************************************/
void
Fatal(fmt, args)/* issue a fatal error message */
char *fmt; /* format */
char *args; /* arguments */
{
if (G_logging == 1)
{
(void)fprintf(G_logfp, "%s: FATAL--", G_progname);
_doprnt(fmt, &args, G_logfp);
(void)fprintf(G_logfp, "\n");
}
ResetTerm();
(void)fprintf(stderr,"\n");
(void)fprintf(stderr, "%s: FATAL--", G_progname);
_doprnt(fmt, &args, stderr);
(void)fprintf(stderr, "\n\n");
if (G_logging == 1) (void)printf("Log file created\n");
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;
(void)fseek (dvifp, (long) 0, 2); /* goto end of file */
*postambleptr = ftell (dvifp) - 4;
(void)fseek (dvifp, *postambleptr, 0);
while (TRUE) {
(void)fseek (dvifp, --(*postambleptr), 0);
if (((i = NoSignExtend(dvifp, 1)) != 223) &&
(i != DVIFORMAT))
Fatal ("Bad end of DVI file");
if (i == DVIFORMAT)
break;
}
(void)fseek (dvifp, (*postambleptr) - 4, 0);
(*postambleptr) = NoSignExtend(dvifp, 4);
(void)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. Note that the font directory is not yet loaded. In order to
adapt ourselves to the existing "verser" the following font paramters
are copied onto output fontno (4 bytes), chksum, fontmag,
fontnamelength (1 byte), fontname. At the end, a -1 is put onto the
file.
***********************************************************************/
{
#ifndef UCI
char str[50], *calloc ();
unsigned char byte;
int i, fnamelen;
#else
/* char *calloc(); */
unsigned char byte;
#endif
while (((byte = NoSignExtend(dvifp, 1)) >= FNT_DEF1) &&
(byte <= FNT_DEF4)) {
switch (byte) {
case FNT_DEF1:
(void)ReadFontDef (NoSignExtend(dvifp, 1));
break;
case FNT_DEF2:
(void)ReadFontDef (NoSignExtend(dvifp, 2));
break;
case FNT_DEF3:
(void)ReadFontDef (NoSignExtend(dvifp, 3));
break;
case FNT_DEF4:
(void)ReadFontDef (NoSignExtend(dvifp, 4));
break;
default:
Fatal ("Bad byte value in font defs");
break;
}
}
if (byte != POST_POST)
Fatal ("POST_POST missing after fontdefs");
}
/*
#ifdef ALLOW_INTERRUPT */
/*-->GotInterrupt*/
/**********************************************************************/
/*************************** GotInterrupt ***************************/
/**********************************************************************/
/* ARGSUSED */ /*
void
GotInterrupt(sig) */ /* don't leave terminal in a weird state */ /*
int sig;
{
ResetTerm();
if (G_logging == 1) (void)printf("Log file created\n");
AbortRun(G_errenc);
}
#endif
*/
/*-->InitTerm*/
/**********************************************************************/
/***************************** InitTerm *****************************/
/**********************************************************************/
void
InitTerm() /* initialize terminal */
{
#ifdef SUNONE
screen = pr_open("/dev/bwone0");
#else
screen = pr_open("/dev/bwtwo0");
#endif
if (screen == NULL) {
perror("pixel: ");
exit(1);
}
display = screen;
}
/*-->InputWaiting*/
/**********************************************************************/
/************************* InputWaiting *******************************/
/**********************************************************************/
int
InputWaiting(fp)
FILE *fp;
/* this routine returns TRUE if there is input waiting to be read
and FALSE otherwise. note that it may take time to realize
that there is input waiting so the routine may occasionaly
be wrong. */
{
long retval;
if (fp->_cnt != 0) return(TRUE);
(void)ioctl(fileno(fp), FIONREAD, &retval);
return((int)retval);
}
/*-->MoveDown*/
/**********************************************************************/
/**************************** MoveDown ******************************/
/**********************************************************************/
void
MoveDown(a)
int a;
{
v += a;
}
/*-->MoveOver*/
/**********************************************************************/
/**************************** MoveOver ******************************/
/**********************************************************************/
void
MoveOver(b)
int b;
{
h += b;
}
/*-->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, pkfp, 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) (void)printf("Open Font file\n");
#endif
if (pfontptr == fontptr)
return; /* we need not have been called */
for (current = 1;
(current <= nopen) &&
#ifndef UCI
(pixel_files[current].pixel_file_id != fontptr->font_file_id);
#else
strcmp(pixel_files[current].name, fontptr->name);
#endif UCI
++current)
; /* try to find file in open list */
if (current <= nopen) /* file already open */
{
pkfp = pixel_files[current].pixel_file_id;
#ifndef UCI
(void)fseek(pkfp,0,0); /* reposition to start of file */
#else
(void)fseek(pkfp, 0L, 0);
#endif
}
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;
(void)fclose(pixel_files[least_used].pixel_file_id);
current = least_used;
}
if ((pkfp=BINARYOPEN(fontptr->name,"r")) == NULL)
Fatal("PK file \"%s\" could not be opened; %d PK files are open",
fontptr->name,nopen);
pixel_files[current].pixel_file_id = pkfp;
pixel_files[current].use_count = 0;
#ifdef UCI
(void)strcpy(pixel_files[current].name, fontptr->name);
#endif UCI
}
pfontptr = fontptr; /* make previous = current font */
fontptr->font_file_id = pkfp; /* set file identifier */
pixel_files[current].use_count++; /* update reference count */
}
/*-->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));
}
/*
* PK font reading functions
*/
/* ID byte value at the beginning of PK files */
#define PK_ID 89
/* PK op codes */
#define PK_XXX1 240
#define PK_XXX2 241
#define PK_XXX3 242
#define PK_XXX4 243
#define PK_YYY 244
#define PK_POST 245
#define PK_NOP 246
#define PK_PRE 247
#define PK_REPEAT 0xe /* Repeat last row - repeat count in next nibble */
#define PK_AGAIN 0xf /* Repeat only once */
#define PK_LARGE 0x0 /* Long run vaule coming up */
/*
* the macros that read pk values need these variables.
*/
static u_short _nyb_buf,
_nyb_flag,
_pk_repeat;
/*
* get the next nybble of the file. This macro requires
* that 2 integers named _nyb_buf and _nyb_flag be allocated elsewhere in
* the program. In addition, _nyb_flag must be initialized to 0.
*/
#define GET_NYB ((_nyb_flag ^= 1) ? \
((_nyb_buf = (unsigned)getc(pkfp)) >> 4) : \
(_nyb_buf & 0xf))
/*
* The quantity to be packed into nybbles may require an odd number of
* nybbles which will cause the nybble fetching macro to get out of
* sync. The following macro ``clears'' the state of the nybble fetching
* routine and should be executed whenever transitioning from nybble to
* byte (or other) quantities.
*/
#define CLEAR_NYB _nyb_flag = 0;
/*
* this macro gets a PK ``packed number'' from fp and puts it into x.
* It is an adaption of an algorithm presented in Tugboat V. 6, No. 3.
*/
#define GET_PACKED(x) x = get_packed(pkfp, dyn_f)
static u_int
get_packed(pkfp, dyn_f)
register FILE *pkfp;
register u_int dyn_f;
{
register int i, j;
i = GET_NYB;
if (i == 0) {
/*
* we have an arbitrarily long number. scan to
* find the first non-zero nybble which is the
* count of the nybbles in this value.
*/
do {
j = GET_NYB;
i++;
} while (j == 0);
while (--i >= 0)
j = (j << 4) + GET_NYB;
return (j + 193 - 15 * dyn_f);
} else if (i <= dyn_f) {
/* this nybble is the number we want. */
return (i);
} else if (i < 14) {
return (i + 15 * (i - dyn_f - 1) + GET_NYB);
} else if (i == 14) {
_pk_repeat = get_packed (pkfp, dyn_f);
} else {
_pk_repeat = 1;
}
return (i);
}
static u_char bit_mask[] = { 0x80, 0x40, 0x20, 0x10, 0x08, 0x04, 0x02, 0x01 };
/*-->ReadFontDef*/
/**********************************************************************/
/**************************** ReadFontDef ***************************/
/**********************************************************************/
int
ReadFontDef(k)
int k;
{
register struct font_entry *tfontptr; /* temporary font_entry pointer */
register unsigned c, cc;
long pl, addr;
u_int hppp, vppp;
int checksum;
u_int tfmw;
double cscale;
char *direct, *tcp, *tcp1;
int found, t;
char curarea[STRSIZE];
char requested_font[STRSIZE];
if ((tfontptr = NEW(struct font_entry)) == NULL)
Fatal("can't malloc space for font_entry");
tfontptr->next = hfontptr;
fontptr = hfontptr = tfontptr;
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
(float)RESOLUTION) + 0.5);
if (tfontptr->a != 0) {
(void)sprintf(tfontptr->name, "%s.%dpk", tfontptr->n, tfontptr->font_mag);
} else {
requested_font[0] = '\0';
direct = PKpath;
found = FALSE;
do {
tcp = index(direct, ':');
if (tcp == NULL) tcp = strlen(direct) + direct;
(void)strncpy(curarea, direct, tcp-direct);
tcp1 = curarea + (tcp - direct);
*tcp1++ = '/';
*tcp1++ = '\0';
(void)sprintf(tfontptr->name, "%s%s.%dpk", curarea, tfontptr->n, tfontptr->font_mag);
found = (access(tfontptr->name, READ) == 0);
/************ P. A. MacKay, 15 November, 1989: patch for font substitution */
if ( ! found ) {
(void)sprintf(requested_font, "%s.%dpk", tfontptr->n, tfontptr->font_mag);
t = LO_FONT_FUZZ;
}
while ( (!found) && ( t < HI_FONT_FUZZ+2) ) {
(void)sprintf(tfontptr->name, "%s%s.%dpk", curarea, tfontptr->n, ( tfontptr->font_mag + t ) );
found = (access(tfontptr->name, READ) == 0);
if ( (!found) && ( t < HI_FONT_FUZZ ) ) t++;
else {
t = LO_FONT_FUZZ;
if ( tfontptr->font_mag < ( RESOLUTION + HI_FONT_FUZZ) ) {
if ( (*(tfontptr->n + (strlen(tfontptr->n) -2) ) == '1') &&
(*(tfontptr->n + (strlen(tfontptr->n) -1) ) == '0') )
t = HI_FONT_FUZZ+2; /* Force exit from loop */
if (strncmp(tfontptr->n,"cmr7",4) == 0)
t = HI_FONT_FUZZ+2; /* Force exit from loop */
if ( isdigit(*(tfontptr->n + (strlen(tfontptr->n) -2) ) ) ){
*(tfontptr->n + (strlen(tfontptr->n) -2) ) = '1';
*(tfontptr->n + (strlen(tfontptr->n) -1) ) = '0';
}
else {
(void)strncpy(tfontptr->n,"cmr7'\0'",5);
tfontptr->font_mag = RESOLUTION;
}
}
else {
if ( tfontptr->font_mag > ( RESOLUTION + HI_FONT_FUZZ ) )
tfontptr->font_mag = (int)(((float)tfontptr->font_mag / 1.2) );
} /* ENDIF if (tfontptr->font_mag < ( RESOLUTION + HI_FONT_FUZZ) ) */
} /* ENDELSE if ( (!found) && ( t < HI_FONT_FUZZ ) ) */
if (*tcp == '\0') {
if ( (!found) && ( t == HI_FONT_FUZZ+2) &&
( ! (strncmp(tfontptr->n,"cmr",3) == 0) ) ) {
(void)strncpy(tfontptr->n,"cmr10\0",6);
t = LO_FONT_FUZZ; /* really desperate */
}
}
} /* ENDLOOP while ( (!found) && ( t < HI_FONT_FUZZ+2) ) */
if (*tcp) direct = tcp + 1; else direct = tcp;
} while ( !found && *direct != '\0');
if ( requested_font[0] > '\0') {
Warning("Substituted %s for %s\n", tfontptr->name, requested_font);
}
}
/* P. A. MacKay, 15 November, 1989: end of patch for font substitution */
if (tfontptr != pfontptr)
OpenFontFile();
(void)fseek (pkfp, (off_t)0L, 0); /* make sure at the beginning of pk file */
if (NoSignExtend(pkfp, 1) != PK_PRE) {
Warning("pk font file %s doesn't start with PRE\n",
tfontptr->name);
(void)fclose(tfontptr->font_file_id);
tfontptr->font_file_id = NO_FILE;
return TRUE;
}
if (NoSignExtend(pkfp, 1) != PK_ID) {
Warning("pk font file %s wrong version\n",
tfontptr->name);
(void)fclose(tfontptr->font_file_id);
tfontptr->font_file_id = NO_FILE;
return TRUE;
}
(void)fseek (pkfp, (long) NoSignExtend(pkfp, 1), 1); /* skip comment */
tfontptr->designsize = NoSignExtend(pkfp, 4); /* ds[4] */
checksum = NoSignExtend(pkfp, 4); /* checksum[4] */
hppp = NoSignExtend(pkfp, 4); /* hppp[4] */
vppp = NoSignExtend(pkfp, 4); /* vppp[4] */
cscale = (double) tfontptr->s / (double)(1 << 20);
while ((c = NoSignExtend(pkfp, 1)) != EOF) {
if (c >= PK_XXX1) { /* commands are just skipped */
switch (c) {
case PK_XXX1: /* pk_xxx1 k[1] x[k] */
(void)fseek (pkfp, (long)NoSignExtend(pkfp,1), 1);
break;
case PK_XXX2: /* pk_xxx2 k[2] x[k] */
(void)fseek (pkfp, (long)NoSignExtend(pkfp,2), 1);
break;
case PK_XXX3: /* pk_xxx3 k[3] x[k] */
(void)fseek (pkfp, (long)NoSignExtend(pkfp,3), 1);
break;
case PK_XXX4: /* pk_xxx4 k[4] x[4] */
(void)fseek (pkfp, (long)SignExtend(pkfp,4), 1);
break;
case PK_YYY: /* pk_yyy y[4] */
(void) NoSignExtend(pkfp, 4);
break;
case PK_POST:
return TRUE;
case PK_PRE:
Warning("pk font file %s has extra PRE\n",
tfontptr->name);
(void)fclose(tfontptr->font_file_id);
tfontptr->font_file_id = NO_FILE;
return TRUE;
default: /* do nothing */ ;
}
} else { /* flag byte */
switch (c & 0x07) { /* check flag byte */
case 0:/* short form */
case 1:
case 2:
case 3:
/* length */
pl = (long) NoSignExtend(pkfp, 1)
+ (long) ((c & 0x03) << 8);
cc = NoSignExtend(pkfp,1); /* char. code */
tfmw = NoSignExtend(pkfp,3); /* tfm width */
(void) NoSignExtend(pkfp,1); /* x-escapement */
tfontptr->ch[cc].width = NoSignExtend(pkfp, 1);
tfontptr->ch[cc].height = NoSignExtend(pkfp, 1);
tfontptr->ch[cc].xOffset = SignExtend(pkfp, 1);
tfontptr->ch[cc].yOffset = SignExtend(pkfp, 1);
addr = ftell (pkfp);
pl -= 8;
break;
case 4:/* extended short form */
case 5:
case 6:
pl = (long) NoSignExtend(pkfp, 2)
+ (long) ((c & 0x03) << 16);
cc = NoSignExtend(pkfp,1); /* char. code */
tfmw = NoSignExtend(pkfp,3); /* tfm width */
(void) NoSignExtend(pkfp,2); /* x-escapement */
tfontptr->ch[cc].width = NoSignExtend(pkfp, 2);
tfontptr->ch[cc].height = NoSignExtend(pkfp, 2);
tfontptr->ch[cc].xOffset = SignExtend(pkfp, 2);
tfontptr->ch[cc].yOffset = SignExtend(pkfp, 2);
addr = ftell (pkfp);
pl -= 13;
break;
case 7:/* long form */
pl = NoSignExtend(pkfp,4);
cc = NoSignExtend(pkfp,4); /* char. code */
tfmw = NoSignExtend(pkfp,4);
(void) NoSignExtend(pkfp,4); /* x-escapement */
tfontptr->ch[cc].width = NoSignExtend(pkfp, 4);
tfontptr->ch[cc].height = NoSignExtend(pkfp, 4);
tfontptr->ch[cc].xOffset = SignExtend(pkfp, 4);
tfontptr->ch[cc].yOffset = SignExtend(pkfp, 4);
addr = ftell (pkfp);
pl -= 24;
break;
}
tfontptr->ch[cc].tfmw = (int)(((double)tfmw * cscale) + 0.5);
tfontptr->ch[cc].where.isloaded = 0;
tfontptr->ch[cc].where.flags = c;
tfontptr->ch[cc].where.address.fileOffset = addr;;
(void)fseek (pkfp, pl, 1); /* skip until next flag byte */
}
}
if((tfontptr->c != 0) && (checksum != 0) && (tfontptr->c != checksum))
Warning("Bad font checksum %d != %d; font %s.",
checksum, tfontptr->c, tfontptr->name);
return TRUE;
}
/**********************************************************************/
/**************************** ReadInt *******************************/
/**********************************************************************/
/* this routine is used to read in an integer from the stdin stream.
This routine is necessary since the terminal is running in
CBREAK mode and therefore will not do editing of the input
stream for one. */
ReadInt()
{
int value = 0;
int byte;
while ((byte = getchar()) != /* tcb.t_brkc */ 10 && byte != 13)
{ if (byte >= 48 /* "0" */ && byte <= 57 /* "9" */)
value = value * 10 + byte - 48;
if (byte == tty.sg_erase) value = value / 10;
}
return(value);
}
/*-->ReadPostAmble*/
/**********************************************************************/
/************************** ReadPostAmble ***************************/
/**********************************************************************/
void
ReadPostAmble()
/***********************************************************************
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) (void)fprintf (stderr, "got POST command\n");
#endif
/* lastpageptr = */ NoSignExtend(dvifp, 4);
num = NoSignExtend(dvifp, 4);
den = NoSignExtend(dvifp, 4);
mag = NoSignExtend(dvifp, 4);
hconv = DoConv(num, den, hconvRESOLUTION);
vconv = DoConv(num, den, vconvRESOLUTION);
(void)NoSignExtend(dvifp, 4); /* height-plus-depth of tallest page */
(void)NoSignExtend(dvifp, 4); /* width of widest page */
if (NoSignExtend(dvifp, 2) >= STACKSIZE)
Fatal ("Stack size is too small");
(void)NoSignExtend(dvifp, 2); /* this reads the number of pages in */
/* the DVI file */
#ifdef DEBUG
if (Debug) (void)fprintf (stderr, "now reading font defs");
#endif
GetFontDef ();
}
/*-->ResetTerm*/
/**********************************************************************/
/**************************** ResetTerm *****************************/
/**********************************************************************/
void
ResetTerm() /* Reset Terminal */
{
if (G_interactive)
(void)ioctl(0, TIOCSETP, &G_intty); /* restore modes */
}
/*-->LoadAChar*/
/**********************************************************************/
/***************************** LoadAChar ****************************/
/**********************************************************************/
/*
* load a PK character into memory.
*/
BOOLEAN
LoadAChar( ptr)
register struct char_entry *ptr;
{
register struct pixrect *pr;
int cw; /* character width */
int ch; /* character height */
u_int dyn_f; /* dynamic factor, part of a PK word. */
register int i, j;
register int black, bits, bp, rc;
int rowp;
if (ptr->where.address.fileOffset == 0) {
ptr->where.address.pixrectptr = NULL;
return;
}
OpenFontFile();
if (ptr->width == 0 || ptr->height == 0) {
ptr->where.address.pixrectptr = (struct pixrect *) 0;
return;
}
(void)fseek(pkfp, (long)ptr->where.address.fileOffset, 0);
pr = mem_create(ptr->width, ptr->height, 1);
ptr->where.address.pixrectptr = pr;
cw = ptr->width; ch = ptr->height;
pr_rop(pr, 0, 0, cw, ch, PIX_CLR, NULL, 0, 0);
/*
* what remains is the data for the image. It can be packaged
* either as a run-encoding where successive values are the
* number of adjacent pixels to paint in the opposite color of
* the previous painting, or simply as a bitmap with no padding
* except (possibly) for the very last nybble to round up to a
* byte value.
*
* the data for the character is stored in successive bits with
* each new horizontal row at a long boundary. See the old PXL
* file format.
*/
/*
* grab the dyn_f out of the flag for this character.
*/
dyn_f = (ptr->where.flags >> 4) & 0xf;
/*
* the data returned by calloc is zeroed; we depend on that
* because we only turn on bits that are supposed to be
* black.
*/
if (dyn_f == 14) {
/*
* we have a bitmap rather than a run-encoding.
*/
u_int buf;
bp = 0;
for (i=0; i < ch; i++) {
for (j=0; j<cw; j++) {
if(!(bp & 7))
buf = getc(pkfp);
pr_put(pr, j, i, (buf & bit_mask[bp&7])?1:0);
bp++;
}
}
} else {
bp = _pk_repeat = rc = rowp = 0;
black = ptr->where.flags & (1 << 3);
bits = cw * ch;
CLEAR_NYB;
while (bp < bits) {
GET_PACKED(j);
if (_pk_repeat != 0) {
rc = _pk_repeat;
rowp = bp / cw;
_pk_repeat = 0;
continue;
}
/*
* we have a run count in j.
*/
if (black) {
register int k,l,m;
l = bp / cw; /* starting row */
m = (bp + j) / cw; /* ending row */
k = bp % cw; /* start bit offset */
i = (bp + j) % cw; /* ending bit offset */
if (j <= cw && (k < i || i == 0)) {
/* we're changing less than a row */
pr_rop(pr, k, l, j, 1, PIX_SET,
NULL, 0, 0);
} else {
/* fill any fragment in the current row */
pr_rop(pr, k, l, cw-k, 1, PIX_SET,
NULL, 0, 0);
/* fill some number of full rows */
pr_rop(pr, 0, l+1, cw, (j-(cw-k))/cw, PIX_SET, NULL, 0, 0);
/* fill any fragment in the last row */
if (i)
pr_rop(pr, 0, m, i, 1, PIX_SET,
NULL, 0, 0);
}
}
bp += j;
/*
* if there's a repeat count and we hit the end of
* a row, do the copy.
*/
if (rc && (bp - (rowp*cw)) >= cw) {
i = rowp+1;
j = rowp+1+rc;
if ((i*cw) != bp) {
pr_rop(pr, 0, j, cw, 1, PIX_SRC,
pr, 0, i);
}
j = rc;
while(j--) {
pr_rop(pr, 0, i, cw, 1, PIX_SRC,
pr, 0, rowp);
i++;
}
bp += rc * cw;
rc = 0;
}
black = !black;
}
}
ptr->where.isloaded = TRUE;
}
/*-->SetChar*/
/**********************************************************************/
/***************************** SetChar ******************************/
/**********************************************************************/
void
SetChar(c, command)
int c, command;
{
register struct char_entry *ptr; /* temporary char_entry pointer */
#ifndef UCI
int k;
#endif
ptr = &(fontptr->ch[c]);
hh = PixRound(h, hconv);
vv = PixRound(v, vconv);
if (!ptr->where.isloaded) LoadAChar(ptr);
pr_rop(display, hh-ptr->xOffset-xscreen, vv-ptr->yOffset-yscreen, ptr->width, ptr->height, draw_mode, ptr->where.address.pixrectptr, 0, 0);
if (command <= SET4)
h += ptr->tfmw;
}
/*-->SetFntNum*/
/**********************************************************************/
/**************************** SetFntNum *****************************/
/**********************************************************************/
void
SetFntNum(k)
int k;
/* 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);
}
/*-->SetRule*/
/**********************************************************************/
/***************************** SetRule ******************************/
/**********************************************************************/
void
SetRule(a, b, Set)
int a, b;
BOOLEAN Set;
{ /* this routine will draw a rule on the screen */
int ehh, evv;
hh = PixRound(h, hconv);
vv = PixRound(v-a, vconv);
#ifndef UCI
ehh = PixRound(h + b, hconv);
evv = PixRound(v, vconv);
#else
#define rulepix(x, conv) (((x) + (conv)-1) / (conv))
ehh = rulepix(b, hconv) + hh;
evv = rulepix(a, vconv) + vv;
#endif UCI
if (hh == ehh) ehh++;
if (vv == evv) vv--;
if ((a > 0) && (b > 0))
pr_rop(display, hh-xscreen, vv-yscreen, ehh-hh, evv-vv, set_mode, NULL, 0, 0);
if (Set) {
h += b;
/* v += a; */
}
}
/*-->SkipFontDef*/
/**********************************************************************/
/**************************** SkipFontDef ***************************/
/**********************************************************************/
/* ARGSUSED */
void
SkipFontDef(k)
int k;
{
int a, l;
char n[STRSIZE];
(void)NoSignExtend(dvifp, 4);
(void)NoSignExtend(dvifp, 4);
(void)NoSignExtend(dvifp, 4);
a = NoSignExtend(dvifp, 1);
l = NoSignExtend(dvifp, 1);
GetBytes(dvifp, n, a+l);
}
/*-->Warning*/
/**********************************************************************/
/***************************** Warning ******************************/
/**********************************************************************/
/* VARARGS */
void
Warning(fmt, args) /* issue a warning */
char *fmt; /* format */
char *args; /* arguments */
{
if (G_logging == 0)
{
G_logfp=fopen(G_Logname,"w+");
G_logging = 1;
#ifndef UCI
if (G_logfp == NULL) G_logging = -1;
#else
if (G_logfp == NULL) {
G_logging = -1;
Fatal("Unable to open log file\n");
}
#endif UCI
}
G_errenc = TRUE;
if (G_logging == 1)
{
_doprnt(fmt, &args, G_logfp);
(void)fprintf(G_logfp,"\n");
}
}