| 23 |
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|
| 24 |
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#include "color.h" |
| 25 |
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|
| 26 |
+ |
#include "resolu.h" |
| 27 |
+ |
|
| 28 |
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#include "xraster.h" |
| 29 |
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|
| 30 |
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#include "view.h" |
| 74 |
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|
| 75 |
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double exposure = 1.0; /* exposure compensation used */ |
| 76 |
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|
| 77 |
+ |
int wrongformat = 0; /* input in another format */ |
| 78 |
+ |
|
| 79 |
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struct { |
| 80 |
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int xmin, ymin, xsiz, ysiz; |
| 81 |
|
} box = {0, 0, 0, 0}; /* current box */ |
| 145 |
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} |
| 146 |
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} |
| 147 |
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/* get header */ |
| 148 |
< |
getheader(fin, headline); |
| 148 |
> |
getheader(fin, headline, NULL); |
| 149 |
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/* get picture dimensions */ |
| 150 |
< |
if (fgetresolu(&xmax, &ymax, fin) != (YMAJOR|YDECR)) |
| 150 |
> |
if (wrongformat || fgetresolu(&xmax, &ymax, fin) != (YMAJOR|YDECR)) |
| 151 |
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quiterr("bad picture size"); |
| 152 |
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/* set view parameters */ |
| 153 |
|
if (gotview && setview(&ourview) != NULL) |
| 172 |
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{ |
| 173 |
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static char *altname[] = {"rview","rpict",VIEWSTR,NULL}; |
| 174 |
|
register char **an; |
| 175 |
+ |
char fmt[32]; |
| 176 |
|
|
| 177 |
|
if (isexpos(s)) |
| 178 |
|
exposure *= exposval(s); |
| 179 |
< |
else |
| 179 |
> |
else if (isformat(s)) { |
| 180 |
> |
formatval(fmt, s); |
| 181 |
> |
wrongformat = strcmp(fmt, COLRFMT); |
| 182 |
> |
} else |
| 183 |
|
for (an = altname; *an != NULL; an++) |
| 184 |
|
if (!strncmp(*an, s, strlen(*an))) { |
| 185 |
|
if (sscanview(&ourview, s+strlen(*an)) > 0) |
| 381 |
|
sprintf(buf, "%.3f", intens(cval)/exposure); |
| 382 |
|
break; |
| 383 |
|
case 'l': /* luminance */ |
| 384 |
< |
sprintf(buf, "%.0fn", bright(cval)*683.0/exposure); |
| 384 |
> |
sprintf(buf, "%.0fL", luminance(cval)/exposure); |
| 385 |
|
break; |
| 386 |
|
case 'c': /* color */ |
| 387 |
|
comp = pow(2.0, (double)scale); |
| 550 |
|
{ |
| 551 |
|
register unsigned short *dp; |
| 552 |
|
register int x, err; |
| 553 |
< |
int y; |
| 553 |
> |
int y, errp; |
| 554 |
|
rgbpixel *inl; |
| 555 |
|
short *cerr; |
| 556 |
|
|
| 564 |
|
for (x = 0; x < xmax; x++) { |
| 565 |
|
if (!(x&0xf)) |
| 566 |
|
*++dp = 0; |
| 567 |
+ |
errp = err; |
| 568 |
|
err += rgb_bright(&inl[x]) + cerr[x]; |
| 569 |
|
if (err > 127) |
| 570 |
|
err -= 255; |
| 571 |
|
else |
| 572 |
|
*dp |= 1<<(x&0xf); |
| 573 |
< |
cerr[x] = err >>= 1; |
| 573 |
> |
err /= 3; |
| 574 |
> |
cerr[x] = err + errp; |
| 575 |
|
} |
| 576 |
|
} |
| 577 |
|
free((char *)inl); |
| 691 |
|
register int i, val; |
| 692 |
|
|
| 693 |
|
for (i = 0; i < 256; i++) { |
| 694 |
< |
val = pow(i/256.0, 1.0/gamcor) * 256.0; |
| 694 |
> |
val = pow((i+0.5)/256.0, 1.0/gamcor) * 256.0; |
| 695 |
|
map[0][i] = map[1][i] = map[2][i] = val; |
| 696 |
|
} |
| 697 |
|
} |