29 |
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30 |
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#include "pic.h" |
31 |
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32 |
+ |
#include "random.h" |
33 |
+ |
|
34 |
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#define controlshift(e) (((XButtonEvent *)(e))->detail & (ShiftMask|ControlMask)) |
35 |
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|
36 |
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#define FONTNAME "9x15" /* text font we'll use */ |
40 |
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#define BORWIDTH 5 /* border width */ |
41 |
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#define BARHEIGHT 25 /* menu bar size */ |
42 |
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|
43 |
< |
double gamcor = 2.0; /* gamma correction */ |
43 |
> |
double gamcor = 2.2; /* gamma correction */ |
44 |
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|
45 |
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XRASTER *ourras = NULL; /* our stored raster image */ |
46 |
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|
58 |
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int xoff = 0; /* x image offset */ |
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int yoff = 0; /* y image offset */ |
60 |
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|
61 |
< |
VIEW ourview = STDVIEW(0); /* image view parameters */ |
61 |
> |
VIEW ourview = STDVIEW; /* image view parameters */ |
62 |
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int gotview = 0; /* got parameters from file */ |
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|
64 |
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COLR *scanline; /* scan line buffer */ |
139 |
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sprintf(errmsg, "can't open file \"%s\"", fname); |
140 |
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quiterr(errmsg); |
141 |
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} |
142 |
< |
} else |
141 |
< |
goto userr; |
142 |
< |
|
142 |
> |
} |
143 |
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/* get header */ |
144 |
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getheader(fin, headline); |
145 |
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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)) |
147 |
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quiterr("bad picture size"); |
148 |
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/* 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 |
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if ((scanline = (COLR *)malloc(xmax*sizeof(COLR))) == NULL) |
152 |
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quiterr("out of memory"); |
153 |
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|
166 |
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headline(s) /* get relevant info from header */ |
167 |
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char *s; |
168 |
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{ |
169 |
< |
static char *altname[] = {"rview","rpict","VIEW=",NULL}; |
169 |
> |
static char *altname[] = {"rview","rpict",VIEWSTR,NULL}; |
170 |
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register char **an; |
171 |
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|
172 |
< |
if (!strncmp(s, "EXPOSURE=", 9)) |
173 |
< |
exposure *= atof(s+9); |
172 |
> |
if (isexpos(s)) |
173 |
> |
exposure *= exposval(s); |
174 |
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else |
175 |
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for (an = altname; *an != NULL; an++) |
176 |
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if (!strncmp(*an, s, strlen(*an))) { |
177 |
< |
if (sscanview(&ourview, s+strlen(*an)) == 0) |
177 |
> |
if (sscanview(&ourview, s+strlen(*an)) > 0) |
178 |
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gotview++; |
179 |
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return; |
180 |
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} |
181 |
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} |
182 |
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|
183 |
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|
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 |
– |
|
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init() /* get data and open window */ |
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{ |
186 |
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register int i; |
287 |
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} |
288 |
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return; |
289 |
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memerr: |
290 |
< |
quit("out of memory"); |
290 |
> |
quiterr("out of memory"); |
291 |
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} |
292 |
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|
293 |
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|
333 |
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int x, y; |
334 |
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int w, h; |
335 |
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{ |
336 |
< |
if (map_rcolors(ourras) == NULL) { |
336 |
> |
if (ourras->ncolors && map_rcolors(ourras) == NULL) { |
337 |
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fprintf(stderr, "%s: cannot allocate colors\n", progname); |
338 |
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return(-1); |
339 |
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} |
348 |
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{ |
349 |
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char buf[80]; |
350 |
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COLOR cval; |
351 |
+ |
Color cvx; |
352 |
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char *cp; |
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int n; |
354 |
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double comp; |
359 |
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return(0); |
360 |
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switch (*cp) { /* interpret command */ |
361 |
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case 'q': |
362 |
< |
case CTRL(D): /* quiterr */ |
362 |
> |
case CTRL(D): /* quit */ |
363 |
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quit(0); |
364 |
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case '\n': |
365 |
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case '\r': |
370 |
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switch (*cp) { |
371 |
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case '\n': |
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case '\r': /* radiance */ |
373 |
< |
sprintf(buf, "%-3g", intens(cval)/exposure); |
373 |
> |
sprintf(buf, "%.3f", intens(cval)/exposure); |
374 |
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break; |
375 |
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case 'l': /* luminance */ |
376 |
< |
sprintf(buf, "%-3gL", bright(cval)*683.0/exposure); |
376 |
> |
sprintf(buf, "%.0fn", luminance(cval)/exposure); |
377 |
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break; |
378 |
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case 'c': /* color */ |
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comp = pow(2.0, (double)scale); |
386 |
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XText(wind, box.xmin, box.ymin, buf, strlen(buf), |
387 |
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fontid, BlackPixel, WhitePixel); |
388 |
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return(0); |
389 |
+ |
case 'i': /* identify (contour) */ |
390 |
+ |
if (ourras->pixels == NULL) |
391 |
+ |
return(-1); |
392 |
+ |
n = ourras->data.bz[ekey->x-xoff+BZPixmapSize(xmax,ekey->y-yoff)]; |
393 |
+ |
n = ourras->pmap[n]; |
394 |
+ |
cvx.pixel = ourras->cdefs[n].pixel; |
395 |
+ |
cvx.red = random() & 65535; |
396 |
+ |
cvx.green = random() & 65535; |
397 |
+ |
cvx.blue = random() & 65535; |
398 |
+ |
XStoreColor(&cvx); |
399 |
+ |
return(0); |
400 |
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case 'p': /* position */ |
401 |
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sprintf(buf, "(%d,%d)", ekey->x-xoff, ymax-1-ekey->y+yoff); |
402 |
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XText(wind, ekey->x, ekey->y, buf, strlen(buf), |
407 |
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XFeep(0); |
408 |
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return(-1); |
409 |
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} |
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 |
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printf("%e %e %e ", rorg[0], rorg[1], rorg[2]); |
414 |
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printf("%e %e %e\n", rdir[0], rdir[1], rdir[2]); |
415 |
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fflush(stdout); |
418 |
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if (avgbox(cval) == -1) |
419 |
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return(-1); |
420 |
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n = log(.5/bright(cval))/.69315 - scale; /* truncate */ |
421 |
< |
if (n == 0) { |
423 |
< |
XFeep(0); |
421 |
> |
if (n == 0) |
422 |
|
return(0); |
425 |
– |
} |
423 |
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scale_rcolors(ourras, pow(2.0, (double)n)); |
424 |
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scale += n; |
425 |
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sprintf(buf, "%+d", scale); |
428 |
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XFlush(); |
429 |
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free_raster(ourras); |
430 |
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getras(); |
431 |
< |
return(redraw(0, 0, width, height)); |
431 |
> |
/* fall through */ |
432 |
|
case CTRL(R): /* redraw */ |
433 |
+ |
case CTRL(L): |
434 |
+ |
unmap_rcolors(ourras); |
435 |
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XClear(wind); |
436 |
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return(redraw(0, 0, width, height)); |
437 |
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case ' ': /* clear */ |
543 |
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register unsigned short *dp; |
544 |
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register int x, err; |
545 |
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int y; |
546 |
< |
rgbpixel *inline; |
546 |
> |
rgbpixel *inl; |
547 |
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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 |
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for (y = 0; y < ymax; y++) { |
554 |
< |
picreadline3(y, inline); |
554 |
> |
picreadline3(y, inl); |
555 |
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err = 0; |
556 |
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for (x = 0; x < xmax; x++) { |
557 |
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if (!(x&0xf)) |
558 |
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*++dp = 0; |
559 |
< |
err += rgb_bright(&inline[x]) + cerr[x]; |
559 |
> |
err += rgb_bright(&inl[x]) + cerr[x]; |
560 |
|
if (err > 127) |
561 |
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err -= 255; |
562 |
|
else |
564 |
|
cerr[x] = err >>= 1; |
565 |
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} |
566 |
|
} |
567 |
< |
free((char *)inline); |
567 |
> |
free((char *)inl); |
568 |
|
free((char *)cerr); |
569 |
|
} |
570 |
|
|
605 |
|
double sf; |
606 |
|
{ |
607 |
|
register int i; |
608 |
< |
int maxv; |
608 |
> |
long maxv; |
609 |
|
|
610 |
+ |
if (xr->pixels == NULL) |
611 |
+ |
return; |
612 |
+ |
|
613 |
|
sf = pow(sf, 1.0/gamcor); |
614 |
< |
maxv = (1<<16) / sf; |
614 |
> |
maxv = 65535/sf; |
615 |
|
|
616 |
|
for (i = xr->ncolors; i--; ) { |
617 |
< |
xr->cdefs[i].red = xr->cdefs[i].red >= maxv ? |
618 |
< |
(1<<16)-1 : |
617 |
> |
xr->cdefs[i].red = xr->cdefs[i].red > maxv ? |
618 |
> |
65535 : |
619 |
|
xr->cdefs[i].red * sf; |
620 |
< |
xr->cdefs[i].green = xr->cdefs[i].green >= maxv ? |
621 |
< |
(1<<16)-1 : |
620 |
> |
xr->cdefs[i].green = xr->cdefs[i].green > maxv ? |
621 |
> |
65535 : |
622 |
|
xr->cdefs[i].green * sf; |
623 |
< |
xr->cdefs[i].blue = xr->cdefs[i].blue >= maxv ? |
624 |
< |
(1<<16)-1 : |
623 |
> |
xr->cdefs[i].blue = xr->cdefs[i].blue > maxv ? |
624 |
> |
65535 : |
625 |
|
xr->cdefs[i].blue * sf; |
626 |
|
} |
627 |
< |
if (xr->pixels != NULL) |
626 |
< |
XStoreColors(xr->ncolors, xr->cdefs); |
627 |
> |
XStoreColors(xr->ncolors, xr->cdefs); |
628 |
|
} |
629 |
|
|
630 |
|
|
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); |
652 |
|
int y; |
653 |
|
register rgbpixel *l3; |
654 |
|
{ |
655 |
< |
register BYTE *l4; |
656 |
< |
register int shift, c; |
656 |
< |
int i; |
657 |
< |
|
655 |
> |
register int i; |
656 |
> |
/* read scanline */ |
657 |
|
if (getscan(y) < 0) |
658 |
|
quiterr("cannot seek for picreadline"); |
659 |
|
/* convert scanline */ |
660 |
< |
for (l4=scanline[0], i=xmax; i--; l4+=4, l3++) { |
661 |
< |
shift = l4[EXP] - COLXS + scale; |
662 |
< |
if (shift >= 8) { |
663 |
< |
l3->r = l3->g = l3->b = 255; |
664 |
< |
} else if (shift <= -8) { |
666 |
< |
l3->r = l3->g = l3->b = 0; |
667 |
< |
} else if (shift > 0) { |
668 |
< |
c = l4[RED] << shift; |
669 |
< |
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 |
< |
} |
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]; |
664 |
> |
l3[i].b = scanline[i][BLU]; |
665 |
|
} |
666 |
|
} |
667 |
|
|
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 |
|
|
677 |
< |
picreadcm(map) /* do gamcor correction */ |
677 |
> |
picreadcm(map) /* do gamma correction */ |
678 |
|
colormap map; |
679 |
|
{ |
680 |
|
extern double pow(); |
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 |
|
} |