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#include "defs.h"
#include "commands.h"
#include "dconv.h"
#include "set.h"
#include "global.h"
int h; /* current horizontal position */
int v; /* current vertical position */
int dir; /* current direction */
int *move; /* &h or &v */
BOOLEAN chmove; /* TRUE if char moves */
#define MoveDown DC_movedown
#define MoveOver DC_moveover
#define SetRule DC_setrule
/*
* convert dvi to printer language
*/
void
dviconv(hdfidx)
struct font_index *hdfidx;
{
int SkipMode = FALSE; /* in skip mode flag */
int command; /* current command */
int count[10]; /* the 10 counters at begining of each page */
int sp; /* stack pointer */
struct {
int h, v, w, x, y, z; /* what's on stack */
int d; /* pTeX */
} stack[STACKSIZE]; /* stack */
int basedir;
int i; /* command parameter; loop index */
int k; /* temporary parameter */
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 */
/*long cpagep; /* current page pointer */
long ppagep; /* previous page pointer */
/* initialize for virtual font */
w = x = y = z = 0;
basedir = dir;
sp = 0;
while (TRUE)
switch (command=DC_getcommand()) {
case SET1:case SET2:case SET3:case SET4:
val = DC_getuint(command-SET1+1);
if (!SkipMode) SetChar(val, TRUE);
break;
case SET_RULE:
val = DC_getuint(4);
val2 = DC_getuint(4);
if (!SkipMode) SetRule(val, val2, TRUE);
break;
case PUT1:case PUT2:case PUT3:case PUT4:
val = DC_getuint(command-PUT1+1);
if (!SkipMode) SetChar(val, FALSE);
break;
case PUT_RULE:
val = DC_getuint(4);
val2 = DC_getuint(4);
if (!SkipMode) SetRule(val, val2, FALSE);
break;
case NOP:
break;
case BOP:
/*cpagep = ftell(dc_file) - 1;*/
for (i=0; i<=9; i++)
count[i] = DC_getuint(4);
ppagep = DC_getuint(4);
h = v = w = x = y = z = 0;
setdir(HOR);
basedir = HOR;
sp = 0;
setcurfont((struct font_entry *)NULL);
dev_initpage();
SkipMode = (count[0] < FirstPage || count[0] > LastPage);
if (!SkipMode) {
dev_bop(count[0]);
if (!G_quiet) {
#ifdef DEBUG
if (Debuguser)
(void)fprintf(stderr, "[bop:%d\n", count[0]);
else
#endif
(void)fprintf(stderr, "[%d", count[0]);
}
}
break;
case EOP:
if (!SkipMode) {
dev_eop();
#ifdef STATS
if (Stats)
(void)fprintf(stderr,
" - %d total ch, %d diff ch, %d pxl bytes]\n",
Stnc-Stnc0, Sndc-Sndc0, Snbpxl-Snbpx0);
else
#endif
if (!G_quiet) {
#ifdef DEBUG
if (Debuguser)
(void)fprintf(stderr,"eop]\n");
else {
#endif
(void)fprintf(stderr,"] ");
if ((++ndone % 10) == 0) (void)putc('\n', stderr);
#ifdef DEBUG
}
#endif
(void)fflush(stderr);
}
}
if (Reverse)
if (ppagep > 0)
(void)fseek(dc_file, ppagep, SEEK_SET);
else
return;
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;
stack[sp].d = dir;
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;
setdir(stack[sp].d);
break;
case RIGHT1:case RIGHT2:case RIGHT3:case RIGHT4:
val = DC_getint(command-RIGHT1+1);
if (!SkipMode) MoveOver(val);
break;
case W0:
if (!SkipMode) MoveOver(w);
break;
case W1:case W2:case W3:case W4:
w = DC_getint(command-W1+1);
if (!SkipMode) MoveOver(w);
break;
case X0:
if (!SkipMode) MoveOver(x);
break;
case X1:case X2:case X3:case X4:
x = DC_getint(command-X1+1);
if (!SkipMode) MoveOver(x);
break;
case DOWN1:case DOWN2:case DOWN3:case DOWN4:
val = DC_getint(command-DOWN1+1);
if (!SkipMode) MoveDown(val);
break;
case Y0:
if (!SkipMode) MoveDown(y);
break;
case Y1:case Y2:case Y3:case Y4:
y = DC_getint(command-Y1+1);
if (!SkipMode) MoveDown(y);
break;
case Z0:
if (!SkipMode) MoveDown(z);
break;
case Z1:case Z2:case Z3:case Z4:
z = DC_getint(command-Z1+1);
if (!SkipMode) MoveDown(z);
break;
case FNT1:case FNT2:case FNT3:case FNT4:
k = DC_getuint(command-FNT1+1);
if (!SkipMode) SetFntNum(k, hdfidx);
break;
case XXX1:case XXX2:case XXX3:case XXX4:
k = DC_getuint(command-XXX1+1);
DC_getbytes(SpecialStr, k);
if (!SkipMode) dev_dospecial(SpecialStr, k);
break;
case FNT_DEF1:case FNT_DEF2:case FNT_DEF3:case FNT_DEF4:
DC_skipbytes(command-FNT_DEF1+1);
SkipFontDef();
break;
case PRE:
Fatal("PRE occurs within file");
break;
case POST:
return;
case POST_POST:
Fatal("POST_POST with no preceding POST");
break;
case DIR:
setdir(basedir+DC_getuint(1));
break;
default:
if (command >= FONT_00 && command <= FONT_63) {
if (!SkipMode) SetFntNum(command-FONT_00, hdfidx);
} else if (command >= SETC_000 && command <= SETC_127) {
if (!SkipMode) SetString(command);
} else
Fatal("%d is an undefined command", command);
break;
}
}
void initdir()
{
dir = VER;
setdir(HOR);
}
void setdir(d)
int d;
{
d = d%NDIR;
if (dir != d) {
dir = d;
if (d == HOR) {
move = &h;
setdirhor();
} else if (d == VER) {
move = &v;
setdirver();
} else
Fatal("direction %d not supported", d);
dev_dir(d);
}
}
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