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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|
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 |
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if (gotview) { |
347 |
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int x, y; |
348 |
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int w, h; |
349 |
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{ |
350 |
< |
if (map_rcolors(ourras) == NULL) { |
350 |
> |
if (ourras->ncolors && map_rcolors(ourras) == NULL) { |
351 |
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fprintf(stderr, "%s: cannot allocate colors\n", progname); |
352 |
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return(-1); |
353 |
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} |
362 |
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{ |
363 |
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char buf[80]; |
364 |
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COLOR cval; |
365 |
+ |
Color cvx; |
366 |
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char *cp; |
367 |
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int n; |
368 |
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double comp; |
373 |
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return(0); |
374 |
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switch (*cp) { /* interpret command */ |
375 |
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case 'q': |
376 |
< |
case CTRL(D): /* quiterr */ |
376 |
> |
case CTRL(D): /* quit */ |
377 |
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quit(0); |
378 |
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case '\n': |
379 |
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case '\r': |
400 |
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XText(wind, box.xmin, box.ymin, buf, strlen(buf), |
401 |
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fontid, BlackPixel, WhitePixel); |
402 |
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return(0); |
403 |
+ |
case 'i': /* identify (contour) */ |
404 |
+ |
if (ourras->ncolors == 0) |
405 |
+ |
return(-1); |
406 |
+ |
n = ourras->data.bz[ekey->x-xoff+BZPixmapSize(xmax,ekey->y-yoff)]; |
407 |
+ |
n = ourras->pmap[n]; |
408 |
+ |
cvx.pixel = ourras->cdefs[n].pixel; |
409 |
+ |
cvx.red = random() & 65535; |
410 |
+ |
cvx.green = random() & 65535; |
411 |
+ |
cvx.blue = random() & 65535; |
412 |
+ |
XStoreColor(&cvx); |
413 |
+ |
return(0); |
414 |
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case 'p': /* position */ |
415 |
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sprintf(buf, "(%d,%d)", ekey->x-xoff, ymax-1-ekey->y+yoff); |
416 |
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XText(wind, ekey->x, ekey->y, buf, strlen(buf), |
443 |
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getras(); |
444 |
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/* fall through */ |
445 |
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case CTRL(R): /* redraw */ |
446 |
+ |
case CTRL(L): |
447 |
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XClear(wind); |
448 |
+ |
XStoreColors(ourras->ncolors, ourras->cdefs); |
449 |
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return(redraw(0, 0, width, height)); |
450 |
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case ' ': /* clear */ |
451 |
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return(redraw(box.xmin, box.ymin, box.xsiz, box.ysiz)); |
663 |
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int y; |
664 |
|
register rgbpixel *l3; |
665 |
|
{ |
666 |
< |
register BYTE *l4; |
667 |
< |
register int shift, c; |
654 |
< |
int i; |
655 |
< |
|
666 |
> |
register int i; |
667 |
> |
/* read scanline */ |
668 |
|
if (getscan(y) < 0) |
669 |
|
quiterr("cannot seek for picreadline"); |
670 |
|
/* convert scanline */ |
671 |
< |
for (l4=scanline[0], i=xmax; i--; l4+=4, l3++) { |
672 |
< |
shift = l4[EXP] - COLXS + scale; |
673 |
< |
if (shift >= 8) { |
674 |
< |
l3->r = l3->g = l3->b = 255; |
675 |
< |
} else if (shift <= -8) { |
676 |
< |
l3->r = l3->g = l3->b = 0; |
677 |
< |
} else if (shift > 0) { |
678 |
< |
c = l4[RED] << shift; |
679 |
< |
l3->r = c > 255 ? 255 : c; |
668 |
< |
c = l4[GRN] << shift; |
669 |
< |
l3->g = c > 255 ? 255 : c; |
670 |
< |
c = l4[BLU] << shift; |
671 |
< |
l3->b = c > 255 ? 255 : c; |
672 |
< |
} else if (shift < 0) { |
673 |
< |
l3->r = l4[RED] >> -shift; |
674 |
< |
l3->g = l4[GRN] >> -shift; |
675 |
< |
l3->b = l4[BLU] >> -shift; |
676 |
< |
} else { |
677 |
< |
l3->r = l4[RED]; |
678 |
< |
l3->g = l4[GRN]; |
679 |
< |
l3->b = l4[BLU]; |
680 |
< |
} |
671 |
> |
if (scale != 0) |
672 |
> |
for (i = 0; i < xmax; i++) |
673 |
> |
if (scanline[i][EXP]+scale >= 0) |
674 |
> |
scanline[i][EXP] += scale; |
675 |
> |
normcolrs(scanline, xmax); |
676 |
> |
for (i = 0; i < xmax; i++) { |
677 |
> |
l3[i].r = scanline[i][RED]; |
678 |
> |
l3[i].g = scanline[i][GRN]; |
679 |
> |
l3[i].b = scanline[i][BLU]; |
680 |
|
} |
681 |
|
} |
682 |
|
|
689 |
|
} |
690 |
|
|
691 |
|
|
692 |
< |
picreadcm(map) /* do gamcor correction */ |
692 |
> |
picreadcm(map) /* do gamma correction */ |
693 |
|
colormap map; |
694 |
|
{ |
695 |
|
extern double pow(); |