| 29 |
|
|
| 30 |
|
#include "pic.h" |
| 31 |
|
|
| 32 |
+ |
#include "random.h" |
| 33 |
+ |
|
| 34 |
|
#define controlshift(e) (((XButtonEvent *)(e))->detail & (ShiftMask|ControlMask)) |
| 35 |
|
|
| 36 |
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#define FONTNAME "9x15" /* text font we'll use */ |
| 40 |
|
#define BORWIDTH 5 /* border width */ |
| 41 |
|
#define BARHEIGHT 25 /* menu bar size */ |
| 42 |
|
|
| 43 |
< |
double gamcor = 2.0; /* gamma correction */ |
| 43 |
> |
double gamcor = 2.2; /* gamma correction */ |
| 44 |
|
|
| 45 |
|
XRASTER *ourras = NULL; /* our stored raster image */ |
| 46 |
|
|
| 139 |
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sprintf(errmsg, "can't open file \"%s\"", fname); |
| 140 |
|
quiterr(errmsg); |
| 141 |
|
} |
| 142 |
< |
} else |
| 141 |
< |
goto userr; |
| 142 |
< |
|
| 142 |
> |
} |
| 143 |
|
/* get header */ |
| 144 |
|
getheader(fin, headline); |
| 145 |
|
/* get picture dimensions */ |
| 146 |
< |
if (fscanf(fin, "-Y %d +X %d\n", &ymax, &xmax) != 2) |
| 146 |
> |
if (fgetresolu(&xmax, &ymax, fin) != (YMAJOR|YDECR)) |
| 147 |
|
quiterr("bad picture size"); |
| 148 |
|
/* set view parameters */ |
| 149 |
|
if (gotview) { |
| 170 |
|
headline(s) /* get relevant info from header */ |
| 171 |
|
char *s; |
| 172 |
|
{ |
| 173 |
< |
static char *altname[] = {"rview","rpict","VIEW=",NULL}; |
| 173 |
> |
static char *altname[] = {"rview","rpict",VIEWSTR,NULL}; |
| 174 |
|
register char **an; |
| 175 |
|
|
| 176 |
|
if (!strncmp(s, "EXPOSURE=", 9)) |
| 347 |
|
int x, y; |
| 348 |
|
int w, h; |
| 349 |
|
{ |
| 350 |
< |
if (map_rcolors(ourras) == NULL) { |
| 350 |
> |
if (ourras->ncolors && map_rcolors(ourras) == NULL) { |
| 351 |
|
fprintf(stderr, "%s: cannot allocate colors\n", progname); |
| 352 |
|
return(-1); |
| 353 |
|
} |
| 362 |
|
{ |
| 363 |
|
char buf[80]; |
| 364 |
|
COLOR cval; |
| 365 |
+ |
Color cvx; |
| 366 |
|
char *cp; |
| 367 |
|
int n; |
| 368 |
|
double comp; |
| 373 |
|
return(0); |
| 374 |
|
switch (*cp) { /* interpret command */ |
| 375 |
|
case 'q': |
| 376 |
< |
case CTRL(D): /* quiterr */ |
| 376 |
> |
case CTRL(D): /* quit */ |
| 377 |
|
quit(0); |
| 378 |
|
case '\n': |
| 379 |
|
case '\r': |
| 400 |
|
XText(wind, box.xmin, box.ymin, buf, strlen(buf), |
| 401 |
|
fontid, BlackPixel, WhitePixel); |
| 402 |
|
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 |
|
case 'p': /* position */ |
| 415 |
|
sprintf(buf, "(%d,%d)", ekey->x-xoff, ymax-1-ekey->y+yoff); |
| 416 |
|
XText(wind, ekey->x, ekey->y, buf, strlen(buf), |
| 431 |
|
if (avgbox(cval) == -1) |
| 432 |
|
return(-1); |
| 433 |
|
n = log(.5/bright(cval))/.69315 - scale; /* truncate */ |
| 434 |
< |
if (n == 0) { |
| 423 |
< |
XFeep(0); |
| 434 |
> |
if (n == 0) |
| 435 |
|
return(0); |
| 425 |
– |
} |
| 436 |
|
scale_rcolors(ourras, pow(2.0, (double)n)); |
| 437 |
|
scale += n; |
| 438 |
|
sprintf(buf, "%+d", scale); |
| 441 |
|
XFlush(); |
| 442 |
|
free_raster(ourras); |
| 443 |
|
getras(); |
| 444 |
< |
return(redraw(0, 0, width, height)); |
| 444 |
> |
/* fall through */ |
| 445 |
|
case CTRL(R): /* redraw */ |
| 446 |
+ |
case CTRL(L): |
| 447 |
|
XClear(wind); |
| 448 |
+ |
XStoreColors(ourras->ncolors, ourras->cdefs); |
| 449 |
|
return(redraw(0, 0, width, height)); |
| 450 |
|
case ' ': /* clear */ |
| 451 |
|
return(redraw(box.xmin, box.ymin, box.xsiz, box.ysiz)); |
| 663 |
|
int y; |
| 664 |
|
register rgbpixel *l3; |
| 665 |
|
{ |
| 666 |
< |
register BYTE *l4; |
| 667 |
< |
register int shift, c; |
| 656 |
< |
int i; |
| 657 |
< |
|
| 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; |
| 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 |
< |
} |
| 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(); |
