| 58 |
|
int xoff = 0; /* x image offset */ |
| 59 |
|
int yoff = 0; /* y image offset */ |
| 60 |
|
|
| 61 |
< |
VIEW ourview = STDVIEW(0); /* image view parameters */ |
| 61 |
> |
VIEW ourview = STDVIEW; /* image view parameters */ |
| 62 |
|
int gotview = 0; /* got parameters from file */ |
| 63 |
|
|
| 64 |
|
COLR *scanline; /* scan line buffer */ |
| 146 |
|
if (fgetresolu(&xmax, &ymax, fin) != (YMAJOR|YDECR)) |
| 147 |
|
quiterr("bad picture size"); |
| 148 |
|
/* set view parameters */ |
| 149 |
< |
if (gotview) { |
| 150 |
< |
ourview.hresolu = xmax; |
| 151 |
< |
ourview.vresolu = ymax; |
| 152 |
< |
if (setview(&ourview) != NULL) |
| 153 |
< |
gotview = 0; |
| 154 |
< |
} |
| 149 |
> |
if (gotview && setview(&ourview) != NULL) |
| 150 |
> |
gotview = 0; |
| 151 |
|
if ((scanline = (COLR *)malloc(xmax*sizeof(COLR))) == NULL) |
| 152 |
|
quiterr("out of memory"); |
| 153 |
|
|
| 169 |
|
static char *altname[] = {"rview","rpict",VIEWSTR,NULL}; |
| 170 |
|
register char **an; |
| 171 |
|
|
| 172 |
< |
if (!strncmp(s, "EXPOSURE=", 9)) |
| 173 |
< |
exposure *= atof(s+9); |
| 172 |
> |
if (isexpos(s)) |
| 173 |
> |
exposure *= exposval(s); |
| 174 |
|
else |
| 175 |
|
for (an = altname; *an != NULL; an++) |
| 176 |
|
if (!strncmp(*an, s, strlen(*an))) { |
| 177 |
< |
if (sscanview(&ourview, s+strlen(*an)) == 0) |
| 177 |
> |
if (sscanview(&ourview, s+strlen(*an)) > 0) |
| 178 |
|
gotview++; |
| 179 |
|
return; |
| 180 |
|
} |
| 181 |
|
} |
| 182 |
|
|
| 183 |
|
|
| 188 |
– |
char * |
| 189 |
– |
sskip(s) /* skip a word */ |
| 190 |
– |
register char *s; |
| 191 |
– |
{ |
| 192 |
– |
while (isspace(*s)) s++; |
| 193 |
– |
while (*s && !isspace(*s)) s++; |
| 194 |
– |
return(s); |
| 195 |
– |
} |
| 196 |
– |
|
| 197 |
– |
|
| 184 |
|
init() /* get data and open window */ |
| 185 |
|
{ |
| 186 |
|
register int i; |
| 287 |
|
} |
| 288 |
|
return; |
| 289 |
|
memerr: |
| 290 |
< |
quit("out of memory"); |
| 290 |
> |
quiterr("out of memory"); |
| 291 |
|
} |
| 292 |
|
|
| 293 |
|
|
| 373 |
|
sprintf(buf, "%.3f", intens(cval)/exposure); |
| 374 |
|
break; |
| 375 |
|
case 'l': /* luminance */ |
| 376 |
< |
sprintf(buf, "%.0fn", bright(cval)*683.0/exposure); |
| 376 |
> |
sprintf(buf, "%.0fn", luminance(cval)/exposure); |
| 377 |
|
break; |
| 378 |
|
case 'c': /* color */ |
| 379 |
|
comp = pow(2.0, (double)scale); |
| 407 |
|
XFeep(0); |
| 408 |
|
return(-1); |
| 409 |
|
} |
| 410 |
< |
rayview(rorg, rdir, &ourview, |
| 411 |
< |
ekey->x-xoff + .5, ymax-1-ekey->y+yoff + .5); |
| 410 |
> |
if (viewray(rorg, rdir, &ourview, (ekey->x-xoff+.5)/xmax, |
| 411 |
> |
(ymax-1-ekey->y+yoff+.5)/ymax) < 0) |
| 412 |
> |
return(-1); |
| 413 |
|
printf("%e %e %e ", rorg[0], rorg[1], rorg[2]); |
| 414 |
|
printf("%e %e %e\n", rdir[0], rdir[1], rdir[2]); |
| 415 |
|
fflush(stdout); |
| 543 |
|
register unsigned short *dp; |
| 544 |
|
register int x, err; |
| 545 |
|
int y; |
| 546 |
< |
rgbpixel *inline; |
| 546 |
> |
rgbpixel *inl; |
| 547 |
|
short *cerr; |
| 548 |
|
|
| 549 |
< |
if ((inline = (rgbpixel *)malloc(xmax*sizeof(rgbpixel))) == NULL |
| 549 |
> |
if ((inl = (rgbpixel *)malloc(xmax*sizeof(rgbpixel))) == NULL |
| 550 |
|
|| (cerr = (short *)calloc(xmax,sizeof(short))) == NULL) |
| 551 |
< |
quit("out of memory in getmono"); |
| 551 |
> |
quiterr("out of memory in getmono"); |
| 552 |
|
dp = ourras->data.m - 1; |
| 553 |
|
for (y = 0; y < ymax; y++) { |
| 554 |
< |
picreadline3(y, inline); |
| 554 |
> |
picreadline3(y, inl); |
| 555 |
|
err = 0; |
| 556 |
|
for (x = 0; x < xmax; x++) { |
| 557 |
|
if (!(x&0xf)) |
| 558 |
|
*++dp = 0; |
| 559 |
< |
err += rgb_bright(&inline[x]) + cerr[x]; |
| 559 |
> |
err += rgb_bright(&inl[x]) + cerr[x]; |
| 560 |
|
if (err > 127) |
| 561 |
|
err -= 255; |
| 562 |
|
else |
| 564 |
|
cerr[x] = err >>= 1; |
| 565 |
|
} |
| 566 |
|
} |
| 567 |
< |
free((char *)inline); |
| 567 |
> |
free((char *)inl); |
| 568 |
|
free((char *)cerr); |
| 569 |
|
} |
| 570 |
|
|
| 635 |
|
if (scanpos == NULL || scanpos[y] == -1) |
| 636 |
|
return(-1); |
| 637 |
|
if (fseek(fin, scanpos[y], 0) == -1) |
| 638 |
< |
quit("fseek error"); |
| 638 |
> |
quiterr("fseek error"); |
| 639 |
|
cury = y; |
| 640 |
|
} else if (scanpos != NULL) |
| 641 |
|
scanpos[y] = ftell(fin); |
| 657 |
|
if (getscan(y) < 0) |
| 658 |
|
quiterr("cannot seek for picreadline"); |
| 659 |
|
/* convert scanline */ |
| 660 |
< |
if (scale != 0) |
| 674 |
< |
for (i = 0; i < xmax; i++) |
| 675 |
< |
if (scanline[i][EXP]+scale >= 0) |
| 676 |
< |
scanline[i][EXP] += scale; |
| 677 |
< |
normcolrs(scanline, xmax); |
| 660 |
> |
normcolrs(scanline, xmax, scale); |
| 661 |
|
for (i = 0; i < xmax; i++) { |
| 662 |
|
l3[i].r = scanline[i][RED]; |
| 663 |
|
l3[i].g = scanline[i][GRN]; |
| 670 |
|
int y; |
| 671 |
|
pixel *l; |
| 672 |
|
{ |
| 673 |
< |
bcopy(l, ourras->data.bz+BZPixmapSize(xmax,y), BZPixmapSize(xmax,1)); |
| 673 |
> |
bcopy((char *)l, (char *)ourras->data.bz+BZPixmapSize(xmax,y), BZPixmapSize(xmax,1)); |
| 674 |
|
} |
| 675 |
|
|
| 676 |
|
|
| 681 |
|
register int i, val; |
| 682 |
|
|
| 683 |
|
for (i = 0; i < 256; i++) { |
| 684 |
< |
val = pow(i/256.0, 1.0/gamcor) * 256.0; |
| 684 |
> |
val = pow((i+0.5)/256.0, 1.0/gamcor) * 256.0; |
| 685 |
|
map[0][i] = map[1][i] = map[2][i] = val; |
| 686 |
|
} |
| 687 |
|
} |
