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#include "pic.h" |
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32 |
+ |
#include "random.h" |
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|
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#define controlshift(e) (((XButtonEvent *)(e))->detail & (ShiftMask|ControlMask)) |
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#define FONTNAME "9x15" /* text font we'll use */ |
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#define BORWIDTH 5 /* border width */ |
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#define BARHEIGHT 25 /* menu bar size */ |
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double gamcor = 2.0; /* gamma correction */ |
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> |
double gamcor = 2.2; /* gamma correction */ |
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|
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XRASTER *ourras = NULL; /* our stored raster image */ |
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|
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sprintf(errmsg, "can't open file \"%s\"", fname); |
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quiterr(errmsg); |
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} |
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} else |
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goto userr; |
142 |
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|
142 |
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} |
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/* get header */ |
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getheader(fin, headline); |
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/* get picture dimensions */ |
146 |
< |
if (fscanf(fin, "-Y %d +X %d\n", &ymax, &xmax) != 2) |
146 |
> |
if (fgetresolu(&xmax, &ymax, fin) != (YMAJOR|YDECR)) |
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quiterr("bad picture size"); |
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/* set view parameters */ |
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if (gotview) { |
173 |
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static char *altname[] = {"rview","rpict",VIEWSTR,NULL}; |
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register char **an; |
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|
176 |
< |
if (!strncmp(s, "EXPOSURE=", 9)) |
177 |
< |
exposure *= atof(s+9); |
176 |
> |
if (isexpos(s)) |
177 |
> |
exposure *= exposval(s); |
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else |
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for (an = altname; *an != NULL; an++) |
180 |
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if (!strncmp(*an, s, strlen(*an))) { |
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} |
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187 |
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|
188 |
– |
char * |
189 |
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sskip(s) /* skip a word */ |
190 |
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register char *s; |
191 |
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{ |
192 |
– |
while (isspace(*s)) s++; |
193 |
– |
while (*s && !isspace(*s)) s++; |
194 |
– |
return(s); |
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– |
} |
196 |
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|
197 |
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|
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init() /* get data and open window */ |
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{ |
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register int i; |
337 |
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int x, y; |
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int w, h; |
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{ |
340 |
< |
if (map_rcolors(ourras) == NULL) { |
340 |
> |
if (ourras->ncolors && map_rcolors(ourras) == NULL) { |
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fprintf(stderr, "%s: cannot allocate colors\n", progname); |
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return(-1); |
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} |
352 |
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{ |
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char buf[80]; |
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COLOR cval; |
355 |
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Color cvx; |
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char *cp; |
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int n; |
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double comp; |
363 |
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return(0); |
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switch (*cp) { /* interpret command */ |
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case 'q': |
366 |
< |
case CTRL(D): /* quiterr */ |
366 |
> |
case CTRL(D): /* quit */ |
367 |
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quit(0); |
368 |
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case '\n': |
369 |
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case '\r': |
374 |
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switch (*cp) { |
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case '\n': |
376 |
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case '\r': /* radiance */ |
377 |
< |
sprintf(buf, "%-3g", intens(cval)/exposure); |
377 |
> |
sprintf(buf, "%.3f", intens(cval)/exposure); |
378 |
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break; |
379 |
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case 'l': /* luminance */ |
380 |
< |
sprintf(buf, "%-3gL", bright(cval)*683.0/exposure); |
380 |
> |
sprintf(buf, "%.0fn", bright(cval)*683.0/exposure); |
381 |
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break; |
382 |
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case 'c': /* color */ |
383 |
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comp = pow(2.0, (double)scale); |
390 |
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XText(wind, box.xmin, box.ymin, buf, strlen(buf), |
391 |
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fontid, BlackPixel, WhitePixel); |
392 |
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return(0); |
393 |
+ |
case 'i': /* identify (contour) */ |
394 |
+ |
if (ourras->pixels == NULL) |
395 |
+ |
return(-1); |
396 |
+ |
n = ourras->data.bz[ekey->x-xoff+BZPixmapSize(xmax,ekey->y-yoff)]; |
397 |
+ |
n = ourras->pmap[n]; |
398 |
+ |
cvx.pixel = ourras->cdefs[n].pixel; |
399 |
+ |
cvx.red = random() & 65535; |
400 |
+ |
cvx.green = random() & 65535; |
401 |
+ |
cvx.blue = random() & 65535; |
402 |
+ |
XStoreColor(&cvx); |
403 |
+ |
return(0); |
404 |
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case 'p': /* position */ |
405 |
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sprintf(buf, "(%d,%d)", ekey->x-xoff, ymax-1-ekey->y+yoff); |
406 |
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XText(wind, ekey->x, ekey->y, buf, strlen(buf), |
421 |
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if (avgbox(cval) == -1) |
422 |
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return(-1); |
423 |
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n = log(.5/bright(cval))/.69315 - scale; /* truncate */ |
424 |
< |
if (n == 0) { |
423 |
< |
XFeep(0); |
424 |
> |
if (n == 0) |
425 |
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return(0); |
425 |
– |
} |
426 |
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scale_rcolors(ourras, pow(2.0, (double)n)); |
427 |
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scale += n; |
428 |
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sprintf(buf, "%+d", scale); |
433 |
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getras(); |
434 |
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/* fall through */ |
435 |
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case CTRL(R): /* redraw */ |
436 |
+ |
case CTRL(L): |
437 |
+ |
unmap_rcolors(ourras); |
438 |
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XClear(wind); |
439 |
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return(redraw(0, 0, width, height)); |
440 |
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case ' ': /* clear */ |
608 |
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double sf; |
609 |
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{ |
610 |
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register int i; |
611 |
< |
int maxv; |
611 |
> |
long maxv; |
612 |
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|
613 |
+ |
if (xr->pixels == NULL) |
614 |
+ |
return; |
615 |
+ |
|
616 |
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sf = pow(sf, 1.0/gamcor); |
617 |
< |
maxv = (1<<16) / sf; |
617 |
> |
maxv = 65535/sf; |
618 |
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|
619 |
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for (i = xr->ncolors; i--; ) { |
620 |
< |
xr->cdefs[i].red = xr->cdefs[i].red >= maxv ? |
621 |
< |
(1<<16)-1 : |
620 |
> |
xr->cdefs[i].red = xr->cdefs[i].red > maxv ? |
621 |
> |
65535 : |
622 |
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xr->cdefs[i].red * sf; |
623 |
< |
xr->cdefs[i].green = xr->cdefs[i].green >= maxv ? |
624 |
< |
(1<<16)-1 : |
623 |
> |
xr->cdefs[i].green = xr->cdefs[i].green > maxv ? |
624 |
> |
65535 : |
625 |
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xr->cdefs[i].green * sf; |
626 |
< |
xr->cdefs[i].blue = xr->cdefs[i].blue >= maxv ? |
627 |
< |
(1<<16)-1 : |
626 |
> |
xr->cdefs[i].blue = xr->cdefs[i].blue > maxv ? |
627 |
> |
65535 : |
628 |
|
xr->cdefs[i].blue * sf; |
629 |
|
} |
630 |
< |
if (xr->pixels != NULL) |
626 |
< |
XStoreColors(xr->ncolors, xr->cdefs); |
630 |
> |
XStoreColors(xr->ncolors, xr->cdefs); |
631 |
|
} |
632 |
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|
633 |
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|
655 |
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int y; |
656 |
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register rgbpixel *l3; |
657 |
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{ |
658 |
< |
register BYTE *l4; |
659 |
< |
register int shift, c; |
656 |
< |
int i; |
657 |
< |
|
658 |
> |
register int i; |
659 |
> |
/* read scanline */ |
660 |
|
if (getscan(y) < 0) |
661 |
|
quiterr("cannot seek for picreadline"); |
662 |
|
/* convert scanline */ |
663 |
< |
for (l4=scanline[0], i=xmax; i--; l4+=4, l3++) { |
664 |
< |
shift = l4[EXP] - COLXS + scale; |
665 |
< |
if (shift >= 8) { |
666 |
< |
l3->r = l3->g = l3->b = 255; |
667 |
< |
} else if (shift <= -8) { |
668 |
< |
l3->r = l3->g = l3->b = 0; |
669 |
< |
} else if (shift > 0) { |
670 |
< |
c = l4[RED] << shift; |
671 |
< |
l3->r = c > 255 ? 255 : c; |
670 |
< |
c = l4[GRN] << shift; |
671 |
< |
l3->g = c > 255 ? 255 : c; |
672 |
< |
c = l4[BLU] << shift; |
673 |
< |
l3->b = c > 255 ? 255 : c; |
674 |
< |
} else if (shift < 0) { |
675 |
< |
l3->r = l4[RED] >> -shift; |
676 |
< |
l3->g = l4[GRN] >> -shift; |
677 |
< |
l3->b = l4[BLU] >> -shift; |
678 |
< |
} else { |
679 |
< |
l3->r = l4[RED]; |
680 |
< |
l3->g = l4[GRN]; |
681 |
< |
l3->b = l4[BLU]; |
682 |
< |
} |
663 |
> |
if (scale) |
664 |
> |
for (i = 0; i < xmax; i++) |
665 |
> |
if (scanline[i][EXP]) |
666 |
> |
scanline[i][EXP] += scale; |
667 |
> |
normcolrs(scanline, xmax); |
668 |
> |
for (i = 0; i < xmax; i++) { |
669 |
> |
l3[i].r = scanline[i][RED]; |
670 |
> |
l3[i].g = scanline[i][GRN]; |
671 |
> |
l3[i].b = scanline[i][BLU]; |
672 |
|
} |
673 |
|
} |
674 |
|
|
681 |
|
} |
682 |
|
|
683 |
|
|
684 |
< |
picreadcm(map) /* do gamcor correction */ |
684 |
> |
picreadcm(map) /* do gamma correction */ |
685 |
|
colormap map; |
686 |
|
{ |
687 |
|
extern double pow(); |