/* write out matrix to file (precede by resolution string if picture) */
int
cm_write(const CMATRIX *cm, int dtype, FILE *fp)
{
static const char tabEOL[2] = {'\t','\n'};
const COLORV *mp = cm->cmem;
int r, c;
switch (dtype) {
case DTascii:
for (r = 0; r < cm->nrows; r++)
for (c = 0; c < cm->ncols; c++, mp += 3)
fprintf(fp, "%.6e %.6e %.6e%c",
mp[0], mp[1], mp[2],
tabEOL[c >= cm->ncols-1]);
break;
case DTfloat:
case DTdouble:
if (sizeof(COLOR) == cm_elem_size[dtype]) {
r = cm->ncols*cm->nrows;
while (r > 0) {
c = putbinary(mp, sizeof(COLOR), r, fp);
if (c <= 0)
return(0);
mp += 3*c;
r -= c;
}
} else if (dtype == DTdouble) {
double dc[3];
r = cm->ncols*cm->nrows;
while (r--) {
copycolor(dc, mp);
if (putbinary(dc, sizeof(double), 3, fp) != 3)
return(0);
mp += 3;
}
} else /* dtype == DTfloat */ {
float fc[3];
r = cm->ncols*cm->nrows;
while (r--) {
copycolor(fc, mp);
if (putbinary(fc, sizeof(float), 3, fp) != 3)
return(0);
mp += 3;
}
}
break;
case DTrgbe:
case DTxyze:
fprtresolu(cm->ncols, cm->nrows, fp);
for (r = 0; r < cm->nrows; r++, mp += 3*cm->ncols)
if (fwritescan((COLOR *)mp, cm->ncols, fp) < 0)
return(0);
break;
default:
fputs("Unsupported data type in cm_write()!\n", stderr);
return(0);
}
return(fflush(fp) == 0);
}
void
writepict( /* write the picture to a file */
char *s
)
{
static char buf[128];
char *fname;
FILE *fp;
COLR *scanline;
int y;
/* XXX relies on words.c 2.11 behavior */
if (nextword(buf, sizeof(buf), s) == NULL && !buf[0]) {
error(COMMAND, "no file");
return;
}
if ((fname = getpath(buf, NULL, 0)) == NULL ||
(fp = fopen(fname, "w")) == NULL) {
sprintf(errmsg, "cannot open \"%s\"", buf);
error(COMMAND, errmsg);
return;
}
SET_FILE_BINARY(fp);
(*dev->comout)("writing \"");
(*dev->comout)(fname);
(*dev->comout)("\"...\n");
/* write header */
newheader("RADIANCE", fp);
fputs(progname, fp);
fprintview(&ourview, fp);
if (octname != NULL)
fprintf(fp, " %s\n", octname);
else
putc('\n', fp);
fprintf(fp, "SOFTWARE= %s\n", VersionID);
fputnow(fp);
if (exposure != 1.0)
fputexpos(exposure, fp);
if (dev->pixaspect != 1.0)
fputaspect(dev->pixaspect, fp);
fputformat(COLRFMT, fp);
putc('\n', fp);
fprtresolu(hresolu, vresolu, fp);
scanline = (COLR *)malloc(hresolu*sizeof(COLR));
if (scanline == NULL) {
error(COMMAND, "not enough memory!");
fclose(fp);
unlink(fname);
return;
}
for (y = vresolu-1; y >= 0; y--) {
getpictcolrs(y, scanline, &ptrunk, hresolu, vresolu);
if (fwritecolrs(scanline, hresolu, fp) < 0)
break;
}
free((void *)scanline);
if (fclose(fp) < 0)
error(COMMAND, "write error");
}
/* Write matrix to file type indicated by dtype */
int
rmx_write(const RMATRIX *rm, int dtype, FILE *fp)
{
RMATRIX *mydm = NULL;
int ok = 1;
if ((rm == NULL) | (fp == NULL))
return(0);
/* complete header */
if (rm->info)
fputs(rm->info, fp);
if (dtype == DTfromHeader)
dtype = rm->dtype;
else if ((dtype == DTrgbe) & (rm->dtype == DTxyze))
dtype = DTxyze;
else if ((dtype == DTxyze) & (rm->dtype == DTrgbe))
dtype = DTrgbe;
if ((dtype != DTrgbe) & (dtype != DTxyze)) {
fprintf(fp, "NROWS=%d\n", rm->nrows);
fprintf(fp, "NCOLS=%d\n", rm->ncols);
fprintf(fp, "NCOMP=%d\n", rm->ncomp);
} else if (rm->ncomp != 3) { /* wrong # components? */
double cmtx[3];
if (rm->ncomp != 1) /* only convert grayscale */
return(0);
cmtx[0] = cmtx[1] = cmtx[2] = 1;
mydm = rmx_transform(rm, 3, cmtx);
if (mydm == NULL)
return(0);
rm = mydm;
}
fputformat((char *)cm_fmt_id[dtype], fp);
fputc('\n', fp);
switch (dtype) { /* write data */
case DTascii:
ok = rmx_write_ascii(rm, fp);
break;
case DTfloat:
ok = rmx_write_float(rm, fp);
break;
case DTdouble:
ok = rmx_write_double(rm, fp);
break;
case DTrgbe:
case DTxyze:
fprtresolu(rm->ncols, rm->nrows, fp);
ok = rmx_write_rgbe(rm, fp);
break;
default:
return(0);
}
ok &= (fflush(fp) == 0);
rmx_free(mydm);
return(ok);
}
static void
picdebug(void) /* put out debugging picture */
{
static COLOR blkcol = BLKCOLOR;
COLOR *scan;
int y, i;
register int x, rg;
if (fseek(stdin, 0L, 0) == EOF) {
fprintf(stderr, "%s: cannot seek on input picture\n", progname);
exit(1);
}
getheader(stdin, NULL, NULL); /* skip input header */
fgetresolu(&xmax, &ymax, stdin);
/* allocate scanline */
scan = (COLOR *)malloc(xmax*sizeof(COLOR));
if (scan == NULL) {
perror(progname);
exit(1);
}
/* finish debug header */
fputformat(COLRFMT, debugfp);
putc('\n', debugfp);
fprtresolu(xmax, ymax, debugfp);
/* write debug picture */
for (y = ymax-1; y >= 0; y--) {
if (freadscan(scan, xmax, stdin) < 0) {
fprintf(stderr, "%s: error rereading input picture\n",
progname);
exit(1);
}
for (x = 0; x < xmax; x++) {
rg = chartndx(x, y, &i);
if (rg == RG_CENT) {
if (!(1L<<i & gmtflags) || (x+y)&07) {
copycolor(scan[x], mbRGB[i]);
clipgamut(scan[x], bright(scan[x]),
CGAMUT, colmin, colmax);
} else
copycolor(scan[x], blkcol);
} else if (rg == RG_CORR)
cvtcolor(scan[x], scan[x]);
else if (rg != RG_ORIG)
copycolor(scan[x], blkcol);
}
if (fwritescan(scan, xmax, debugfp) < 0) {
fprintf(stderr, "%s: error writing debugging picture\n",
progname);
exit(1);
}
}
/* clean up */
fclose(debugfp);
free((void *)scan);
}
int
main(
int argc,
char *argv[]
)
{
int ncolumns = 0;
int autolabel = 0;
int curcol = 0, x0 = 0, curx = 0, cury = 0, spacing = 0;
int xsgn, ysgn;
char *thislabel;
int an;
SET_DEFAULT_BINARY();
SET_FILE_BINARY(stdin);
SET_FILE_BINARY(stdout);
progname = argv[0];
for (an = 1; an < argc && argv[an][0] == '-'; an++)
switch (argv[an][1]) {
case 'h':
echoheader = !echoheader;
break;
case 'x':
xsiz = atoi(argv[++an]);
break;
case 'y':
ysiz = atoi(argv[++an]);
break;
case 'b':
setcolr(bgcolr, atof(argv[an+1]),
atof(argv[an+2]),
atof(argv[an+3]));
an += 3;
break;
case 'a':
ncolumns = atoi(argv[++an]);
break;
case 's':
spacing = atoi(argv[++an]);
break;
case 'o':
curx = x0 = atoi(argv[++an]);
cury = atoi(argv[++an]);
break;
case 'l':
switch (argv[an][2]) {
case 'a':
autolabel++;
break;
case 'h':
labelht = atoi(argv[++an]);
break;
case '\0':
goto dofiles;
default:
goto userr;
}
break;
case '\0':
case 't':
goto dofiles;
default:
goto userr;
}
dofiles:
newheader("RADIANCE", stdout);
fputnow(stdout);
for (nfile = 0; an < argc; nfile++) {
if (nfile >= MAXFILE)
goto toomany;
thislabel = NULL;
input[nfile].flags = 0;
xsgn = ysgn = '-';
while (an < argc && (argv[an][0] == '-' || argv[an][0] == '+'
|| argv[an][0] == '=')) {
switch (argv[an][1]) {
case 't':
checkthresh = 1;
if (argv[an][0] == '-') {
input[nfile].flags |= HASMIN;
input[nfile].thmin = atof(argv[an+1]);
} else if (argv[an][0] == '+') {
input[nfile].flags |= HASMAX;
input[nfile].thmax = atof(argv[an+1]);
} else
goto userr;
an++;
break;
case 'l':
if (strcmp(argv[an], "-l"))
goto userr;
thislabel = argv[++an];
break;
case '+':
case '-':
case '0':
if (argv[an][0] != '=')
goto userr;
xsgn = argv[an][1];
ysgn = argv[an][2];
if (ysgn != '+' && ysgn != '-' && ysgn != '0')
goto userr;
break;
case '\0':
if (argv[an][0] == '-')
goto getfile;
goto userr;
default:
goto userr;
}
an++;
}
getfile:
if (argc-an < (ncolumns ? 1 : 3))
goto userr;
if (autolabel && thislabel == NULL)
thislabel = argv[an];
if (!strcmp(argv[an], "-")) {
input[nfile].name = StandardInput;
input[nfile].fp = stdin;
} else {
if (argv[an][0] == '!') {
input[nfile].name = Command;
input[nfile].fp = popen(argv[an]+1, "r");
} else {
input[nfile].name = argv[an];
input[nfile].fp = fopen(argv[an], "r");
}
if (input[nfile].fp == NULL) {
perror(argv[an]);
quit(1);
}
}
an++;
/* get header */
if (echoheader)
printf("%s:\n", input[nfile].name);
getheader(input[nfile].fp, headline, NULL);
if (wrongformat) {
fprintf(stderr, "%s: incompatible input format\n",
input[nfile].name);
quit(1);
}
/* get picture size */
if (fgetresolu(&input[nfile].xres, &input[nfile].yres,
input[nfile].fp) < 0) {
fprintf(stderr, "%s: bad picture size\n",
input[nfile].name);
quit(1);
}
if (ncolumns > 0) {
if (curcol >= ncolumns) {
cury = ymax + spacing;
curx = x0;
curcol = 0;
}
input[nfile].xloc = curx;
input[nfile].yloc = cury;
curx += input[nfile].xres + spacing;
curcol++;
} else {
input[nfile].xloc = atoi(argv[an++]);
if (xsgn == '+')
input[nfile].xloc -= input[nfile].xres;
else if (xsgn == '0')
input[nfile].xloc -= input[nfile].xres/2;
input[nfile].yloc = atoi(argv[an++]);
if (ysgn == '+')
input[nfile].yloc -= input[nfile].yres;
else if (ysgn == '0')
input[nfile].yloc -= input[nfile].yres/2;
}
if (input[nfile].xloc < xmin)
xmin = input[nfile].xloc;
if (input[nfile].yloc < ymin)
ymin = input[nfile].yloc;
if (input[nfile].xloc+input[nfile].xres > xmax)
xmax = input[nfile].xloc+input[nfile].xres;
if (input[nfile].yloc+input[nfile].yres > ymax)
ymax = input[nfile].yloc+input[nfile].yres;
if (thislabel != NULL) {
if (++nfile >= MAXFILE)
goto toomany;
input[nfile].name = Label;
input[nfile].flags = 0;
input[nfile].xres = input[nfile-1].xres;
input[nfile].yres = labelht;
if ((input[nfile].fp = lblopen(thislabel,
&input[nfile].xres,
&input[nfile].yres)) == NULL)
goto labelerr;
input[nfile].xloc = input[nfile-1].xloc;
input[nfile].yloc = input[nfile-1].yloc +
input[nfile-1].yres-input[nfile].yres;
}
}
if (xsiz <= 0)
xsiz = xmax;
else if (xsiz > xmax)
xmax = xsiz;
if (ysiz <= 0)
ysiz = ymax;
else if (ysiz > ymax)
ymax = ysiz;
/* add new header info. */
printargs(argc, argv, stdout);
if (strcmp(ourfmt, PICFMT))
fputformat(ourfmt, stdout); /* print format if known */
putchar('\n');
fprtresolu(xsiz, ysiz, stdout);
compos();
quit(0);
userr:
fprintf(stderr,
"Usage: %s [-h][-x xr][-y yr][-b r g b][-a n][-s p][-o x0 y0][-la][-lh h] ",
progname);
fprintf(stderr, "[-t min1][+t max1][-l lab][=SS] pic1 x1 y1 ..\n");
quit(1);
toomany:
fprintf(stderr, "%s: only %d files and labels allowed\n",
progname, MAXFILE);
quit(1);
labelerr:
fprintf(stderr, "%s: error opening label\n", progname);
quit(1);
return 1; /* pro forma return */
}
/* Write resolution string to given output stream */
static void
printresolu(FILE *fout, int xr, int yr)
{
if ((xr > 0) & (yr > 0)) /* resolution string */
fprtresolu(xr, yr, fout);
}
static void
clrdebug(void) /* put out debug picture from color input */
{
static COLR blkclr = BLKCOLR;
COLR mbclr[24], cvclr[24], orclr[24];
COLR *scan;
COLOR ctmp, ct2;
int y, i;
register int x, rg;
/* convert colors */
for (i = 0; i < 24; i++) {
copycolor(ctmp, mbRGB[i]);
clipgamut(ctmp, bright(ctmp), CGAMUT, cblack, cwhite);
setcolr(mbclr[i], colval(ctmp,RED),
colval(ctmp,GRN), colval(ctmp,BLU));
if (inpflags & 1L<<i) {
copycolor(ctmp, inpRGB[i]);
clipgamut(ctmp, bright(ctmp), CGAMUT, cblack, cwhite);
setcolr(orclr[i], colval(ctmp,RED),
colval(ctmp,GRN), colval(ctmp,BLU));
if (rawmap)
copycolr(cvclr[i], mbclr[i]);
else {
bresp(ctmp, inpRGB[i]);
colortrans(ct2, solmat, ctmp);
clipgamut(ct2, bright(ct2), CGAMUT,
cblack, cwhite);
setcolr(cvclr[i], colval(ct2,RED),
colval(ct2,GRN),
colval(ct2,BLU));
}
}
}
/* allocate scanline */
scan = (COLR *)malloc(xmax*sizeof(COLR));
if (scan == NULL) {
perror(progname);
exit(1);
}
/* finish debug header */
fputformat(COLRFMT, debugfp);
putc('\n', debugfp);
fprtresolu(xmax, ymax, debugfp);
/* write debug picture */
for (y = ymax-1; y >= 0; y--) {
for (x = 0; x < xmax; x++) {
rg = chartndx(x, y, &i);
if (rg == RG_CENT) {
if (!(1L<<i & gmtflags) || (x+y)&07)
copycolr(scan[x], mbclr[i]);
else
copycolr(scan[x], blkclr);
} else if (rg == RG_BORD || !(1L<<i & inpflags))
copycolr(scan[x], blkclr);
else if (rg == RG_ORIG)
copycolr(scan[x], orclr[i]);
else /* rg == RG_CORR */
copycolr(scan[x], cvclr[i]);
}
if (fwritecolrs(scan, xmax, debugfp) < 0) {
fprintf(stderr, "%s: error writing debugging picture\n",
progname);
exit(1);
}
}
/* clean up */
fclose(debugfp);
free((void *)scan);
}
int
main(
int argc,
char *argv[]
)
{
struct hdStruct head;
int dither = 1;
int reverse = 0;
int ncolors = 256;
int greyscale = 0;
int i;
SET_DEFAULT_BINARY();
SET_FILE_BINARY(stdin);
SET_FILE_BINARY(stdout);
progname = argv[0];
samplefac = 0;
for (i = 1; i < argc; i++)
if (argv[i][0] == '-')
switch (argv[i][1]) {
case 'd':
dither = !dither;
break;
case 'g':
gamv = atof(argv[++i]);
break;
case 'r':
reverse = !reverse;
break;
case 'b':
greyscale = 1;
break;
case 'e':
if (argv[i+1][0] != '+' && argv[i+1][0] != '-')
goto userr;
bradj = atoi(argv[++i]);
break;
case 'c':
ncolors = atoi(argv[++i]);
break;
case 'n':
samplefac = atoi(argv[++i]);
break;
default:
goto userr;
}
else
break;
if (i < argc-2)
goto userr;
if (i <= argc-1 && freopen(argv[i], "r", stdin) == NULL) {
sprintf(errmsg, "cannot open input \"%s\"", argv[i]);
quiterr(errmsg);
}
if (i == argc-2 && freopen(argv[i+1], "w", stdout) == NULL) {
sprintf(errmsg, "cannot open output \"%s\"", argv[i+1]);
quiterr(errmsg);
}
if (reverse) {
/* get header */
if (getthead(&head, NULL, stdin) < 0)
quiterr("bad targa file");
if (!goodpic(&head))
quiterr("incompatible format");
xmax = head.x;
ymax = head.y;
/* put header */
newheader("RADIANCE", stdout);
printargs(i, argv, stdout);
fputformat(COLRFMT, stdout);
putchar('\n');
fprtresolu(xmax, ymax, stdout);
/* convert file */
tg2ra(&head);
} else {
if (getrhead(&head, stdin) < 0)
quiterr("bad Radiance input");
/* write header */
putthead(&head, NULL, stdout);
/* convert file */
if (greyscale)
getgrey(ncolors);
else
getmapped(ncolors, dither);
/* write data */
writetarga(&head, tarData, stdout);
}
quiterr(NULL);
userr:
fprintf(stderr,
"Usage: %s [-d][-n samp][-c ncolors][-b][-g gamv][-e +/-stops] input [output]\n",
progname);
fprintf(stderr, " Or: %s -r [-g gamv][-e +/-stops] [input [output]]\n",
progname);
exit(1);
}
int
main(
int argc,
char *argv[]
)
{
char inpbuf[2];
int gryflag = 0;
int binflag = 1;
int reverse = 0;
int ptype;
int i;
progname = argv[0];
for (i = 1; i < argc; i++)
if (argv[i][0] == '-')
switch (argv[i][1]) {
case 's':
maxval = atoi(argv[++i]) & 0xffff;
break;
case 'b':
gryflag = 1;
break;
case 'g':
gamcor = atof(argv[++i]);
break;
case 'e':
if (argv[i+1][0] != '+' && argv[i+1][0] != '-')
goto userr;
bradj = atoi(argv[++i]);
break;
case 'a':
binflag = 0;
break;
case 'r':
reverse = !reverse;
break;
default:
goto userr;
}
else
break;
if (i < argc-2)
goto userr;
if (i <= argc-1 && freopen(argv[i], "r", stdin) == NULL) {
fprintf(stderr, "%s: can't open input \"%s\"\n",
progname, argv[i]);
exit(1);
}
if (i == argc-2 && freopen(argv[i+1], "w", stdout) == NULL) {
fprintf(stderr, "%s: can't open output \"%s\"\n",
progname, argv[i+1]);
exit(1);
}
if (maxval < 256)
setcolrgam(gamcor);
if (reverse) {
/* get header */
if (read(fileno(stdin), inpbuf, 2) != 2 || inpbuf[0] != 'P')
quiterr("input not a Poskanzer Pixmap");
ptype = inpbuf[1];
#ifdef _WIN32
if (ptype > 4)
SET_FILE_BINARY(stdin);
SET_FILE_BINARY(stdout);
#endif
xmax = scanint(stdin);
ymax = scanint(stdin);
maxval = scanint(stdin);
/* put header */
newheader("RADIANCE", stdout);
printargs(i, argv, stdout);
fputformat(COLRFMT, stdout);
putchar('\n');
fprtresolu(xmax, ymax, stdout);
/* convert file */
if (maxval >= 256)
switch (ptype) {
case '2':
ppm2ra2(agryscan2);
break;
case '5':
ppm2ra2(bgryscan2);
break;
case '3':
ppm2ra2(aclrscan2);
break;
case '6':
ppm2ra2(bclrscan2);
break;
default:
quiterr("unsupported Pixmap type");
}
else
switch (ptype) {
case '2':
ppm2ra(agryscan);
break;
case '5':
ppm2ra(bgryscan);
break;
case '3':
ppm2ra(aclrscan);
break;
case '6':
ppm2ra(bclrscan);
break;
default:
quiterr("unsupported Pixmap type");
}
} else {
#ifdef _WIN32
SET_FILE_BINARY(stdin);
if (binflag)
SET_FILE_BINARY(stdout);
#endif
/* get header info. */
if (checkheader(stdin, COLRFMT, NULL) < 0 ||
fgetresolu(&xmax, &ymax, stdin) < 0)
quiterr("bad picture format");
/* write PPM header */
printf("P%1d\n%d %d\n%u\n", (gryflag?2:3)+(binflag?3:0),
xmax, ymax, maxval);
/* convert file */
if (maxval >= 256)
ra2ppm2(binflag, gryflag);
else
ra2ppm(binflag, gryflag);
}
exit(0);
userr:
fprintf(stderr,
"Usage: %s [-r][-a][-b][-s maxv][-g gamma][-e +/-stops] [input [output]]\n",
progname);
exit(1);
}
int
main(
int argc,
char *argv[]
)
{
int original;
double f;
int a;
SET_DEFAULT_BINARY();
SET_FILE_BINARY(stdin);
SET_FILE_BINARY(stdout);
progname = argv[0];
/* scan options */
for (a = 1; a < argc; a++) {
if (argv[a][0] == '-')
switch (argv[a][1]) {
case 'x':
case 'y':
a++;
continue;
case 'w':
nowarn = !nowarn;
continue;
case 'h':
echoheader = !echoheader;
continue;
case 'f':
case 'e':
a++;
continue;
}
break;
}
newheader("RADIANCE", stdout); /* start header */
fputnow(stdout);
/* process files */
for (nfiles = 0; nfiles < MAXINP; nfiles++) {
setcolor(input[nfiles].coef, 1.0, 1.0, 1.0);
setcolor(input[nfiles].expos, 1.0, 1.0, 1.0);
input[nfiles].vw = stdview;
input[nfiles].pa = 1.0;
}
nfiles = 0;
original = 0;
for ( ; a < argc; a++) {
if (nfiles >= MAXINP) {
eputs(argv[0]);
eputs(": too many picture files\n");
quit(1);
}
if (argv[a][0] == '-')
switch (argv[a][1]) {
case '\0':
input[nfiles].name = StandardInput;
input[nfiles].fp = stdin;
break;
case 'o':
original++;
continue;
case 's':
f = atof(argv[++a]);
scalecolor(input[nfiles].coef, f);
continue;
case 'c':
colval(input[nfiles].coef,RED)*=atof(argv[++a]);
colval(input[nfiles].coef,GRN)*=atof(argv[++a]);
colval(input[nfiles].coef,BLU)*=atof(argv[++a]);
continue;
default:
goto usage;
}
else {
if (argv[a][0] == '!') {
input[nfiles].name = Command;
input[nfiles].fp = popen(argv[a]+1, "r");
} else {
input[nfiles].name = argv[a];
input[nfiles].fp = fopen(argv[a], "r");
}
if (input[nfiles].fp == NULL) {
perror(argv[a]);
quit(1);
}
}
checkfile();
if (original) {
colval(input[nfiles].coef,RED) /=
colval(input[nfiles].expos,RED);
colval(input[nfiles].coef,GRN) /=
colval(input[nfiles].expos,GRN);
colval(input[nfiles].coef,BLU) /=
colval(input[nfiles].expos,BLU);
setcolor(input[nfiles].expos, 1.0, 1.0, 1.0);
}
nfiles++;
original = 0;
}
init(); /* set constants */
/* go back and get expressions */
for (a = 1; a < argc; a++) {
if (argv[a][0] == '-')
switch (argv[a][1]) {
case 'x':
varset(vxres, ':', eval(argv[++a]));
continue;
case 'y':
varset(vyres, ':', eval(argv[++a]));
continue;
case 'w':
continue;
case 'h':
continue;
case 'f':
fcompile(argv[++a]);
continue;
case 'e':
scompile(argv[++a], NULL, 0);
continue;
}
break;
}
/* set/get output resolution */
if (!vardefined(vxres))
varset(vxres, ':', (double)xmax);
if (!vardefined(vyres))
varset(vyres, ':', (double)ymax);
xres = varvalue(vxres) + .5;
yres = varvalue(vyres) + .5;
if (xres <= 0 || yres <= 0) {
eputs(argv[0]);
eputs(": illegal output resolution\n");
quit(1);
}
/* complete header */
printargs(argc, argv, stdout);
if (strcmp(ourfmt, PICFMT))
fputformat(ourfmt, stdout); /* print format if known */
putchar('\n');
fprtresolu(xres, yres, stdout);
/* combine pictures */
combine();
quit(0);
usage:
eputs("Usage: ");
eputs(argv[0]);
eputs(
" [-w][-h][-x xr][-y yr][-e expr][-f file] [ [-o][-s f][-c r g b] hdr ..]\n");
quit(1);
return 1; /* pro forma return */
}
