| 43 |
|
#define ourroot RootWindow(thedisplay,ourscreen) |
| 44 |
|
#define ourgc DefaultGC(thedisplay,ourscreen) |
| 45 |
|
|
| 46 |
+ |
#define revline(x0,y0,x1,y1) XDrawLine(thedisplay,wind,revgc,x0,y0,x1,y1) |
| 47 |
+ |
|
| 48 |
|
#define redraw(x,y,w,h) patch_raster(wind,(x)-xoff,(y)-yoff,x,y,w,h,ourras) |
| 49 |
|
|
| 50 |
|
double gamcor = 2.2; /* gamma correction */ |
| 77 |
|
|
| 78 |
|
double exposure = 1.0; /* exposure compensation used */ |
| 79 |
|
|
| 80 |
+ |
int wrongformat = 0; /* input in another format? */ |
| 81 |
+ |
|
| 82 |
+ |
GC revgc; /* graphics context with GXinvert */ |
| 83 |
+ |
|
| 84 |
|
XRASTER *ourras; /* our stored image */ |
| 85 |
|
unsigned char *ourdata; /* our image data */ |
| 86 |
|
|
| 158 |
|
} else if (i != argc) |
| 159 |
|
goto userr; |
| 160 |
|
/* get header */ |
| 161 |
< |
getheader(fin, headline); |
| 161 |
> |
getheader(fin, headline, NULL); |
| 162 |
|
/* get picture dimensions */ |
| 163 |
< |
if (fgetresolu(&xmax, &ymax, fin) != (YMAJOR|YDECR)) |
| 164 |
< |
quiterr("bad picture size"); |
| 163 |
> |
if (wrongformat || fgetresolu(&xmax, &ymax, fin) != (YMAJOR|YDECR)) |
| 164 |
> |
quiterr("bad picture format"); |
| 165 |
|
/* set view parameters */ |
| 166 |
|
if (gotview && setview(&ourview) != NULL) |
| 167 |
|
gotview = 0; |
| 185 |
|
{ |
| 186 |
|
static char *altname[] = {"rview","rpict","pinterp",VIEWSTR,NULL}; |
| 187 |
|
register char **an; |
| 188 |
+ |
char fmt[32]; |
| 189 |
|
|
| 190 |
|
if (isexpos(s)) |
| 191 |
|
exposure *= exposval(s); |
| 192 |
< |
else |
| 192 |
> |
else if (isformat(s)) { |
| 193 |
> |
formatval(fmt, s); |
| 194 |
> |
wrongformat = strcmp(fmt, COLRFMT); |
| 195 |
> |
} else |
| 196 |
|
for (an = altname; *an != NULL; an++) |
| 197 |
|
if (!strncmp(*an, s, strlen(*an))) { |
| 198 |
|
if (sscanview(&ourview, s+strlen(*an)) > 0) |
| 232 |
|
CWBackPixel|CWBorderPixel, &ourwinattr); |
| 233 |
|
if (wind == 0) |
| 234 |
|
quiterr("can't create window"); |
| 235 |
+ |
width = xmax; |
| 236 |
+ |
height = ymax; |
| 237 |
|
fontid = XLoadFont(thedisplay, FONTNAME); |
| 238 |
|
if (fontid == 0) |
| 239 |
|
quiterr("can't get font"); |
| 240 |
|
XSetFont(thedisplay, ourgc, fontid); |
| 241 |
+ |
revgc = XCreateGC(thedisplay, wind, 0, 0); |
| 242 |
+ |
XSetFunction(thedisplay, revgc, GXinvert); |
| 243 |
|
XStoreName(thedisplay, wind, fname == NULL ? progname : fname); |
| 244 |
|
XDefineCursor(thedisplay, wind, XCreateFontCursor(thedisplay, |
| 245 |
|
XC_diamond_cross)); |
| 246 |
|
if (geometry != NULL) { |
| 247 |
|
bzero((char *)&oursizhints, sizeof(oursizhints)); |
| 248 |
|
i = XParseGeometry(geometry, &oursizhints.x, &oursizhints.y, |
| 249 |
< |
&oursizhints.width, &oursizhints.height); |
| 249 |
> |
(unsigned *)&oursizhints.width, |
| 250 |
> |
(unsigned *)&oursizhints.height); |
| 251 |
|
if ((i&(WidthValue|HeightValue)) == (WidthValue|HeightValue)) |
| 252 |
|
oursizhints.flags |= USSize; |
| 253 |
|
else { |
| 315 |
|
if (ourras == NULL) |
| 316 |
|
goto fail; |
| 317 |
|
getmono(); |
| 318 |
< |
} else if (XMatchVisualInfo(thedisplay,ourscreen,24,TrueColor,&vinfo)) { |
| 318 |
> |
} else if (XMatchVisualInfo(thedisplay,ourscreen,24,TrueColor,&vinfo) |
| 319 |
> |
/* kludge for DirectColor */ |
| 320 |
> |
|| XMatchVisualInfo(thedisplay,ourscreen,24,DirectColor,&vinfo)) { |
| 321 |
|
ourdata = (unsigned char *)malloc(xmax*ymax*3); |
| 322 |
|
if (ourdata == NULL) |
| 323 |
|
goto fail; |
| 343 |
|
} |
| 344 |
|
return; |
| 345 |
|
fail: |
| 346 |
< |
quit("could not create raster image"); |
| 346 |
> |
quiterr("could not create raster image"); |
| 347 |
|
} |
| 348 |
|
|
| 349 |
|
|
| 417 |
|
sprintf(buf, "%.3f", intens(cval)/exposure); |
| 418 |
|
break; |
| 419 |
|
case 'l': /* luminance */ |
| 420 |
< |
sprintf(buf, "%.0fn", bright(cval)*683.0/exposure); |
| 420 |
> |
sprintf(buf, "%.0fn", luminance(cval)/exposure); |
| 421 |
|
break; |
| 422 |
|
case 'c': /* color */ |
| 423 |
|
comp = pow(2.0, (double)scale); |
| 452 |
|
XBell(thedisplay, 0); |
| 453 |
|
return(-1); |
| 454 |
|
} |
| 455 |
< |
viewray(rorg, rdir, &ourview, |
| 455 |
> |
if (viewray(rorg, rdir, &ourview, |
| 456 |
|
(ekey->x-xoff+.5)/xmax, |
| 457 |
< |
(ymax-1-ekey->y+yoff+.5)/ymax); |
| 457 |
> |
(ymax-1-ekey->y+yoff+.5)/ymax) < 0) |
| 458 |
> |
return(-1); |
| 459 |
|
printf("%e %e %e ", rorg[0], rorg[1], rorg[2]); |
| 460 |
|
printf("%e %e %e\n", rdir[0], rdir[1], rdir[2]); |
| 461 |
|
fflush(stdout); |
| 503 |
|
XButtonReleasedEvent b; |
| 504 |
|
XPointerMovedEvent m; |
| 505 |
|
} e; |
| 506 |
< |
int nxo, nyo; |
| 506 |
> |
int mxo, myo; |
| 507 |
|
|
| 508 |
|
XMaskEvent(thedisplay, ButtonReleaseMask|ButtonMotionMask, &e.u); |
| 509 |
|
while (e.u.type == MotionNotify) { |
| 510 |
< |
nxo = xoff + e.m.x - ebut->x; |
| 511 |
< |
nyo = yoff + e.m.y - ebut->y; |
| 512 |
< |
revbox(nxo, nyo, nxo+xmax, nyo+ymax); |
| 510 |
> |
mxo = e.m.x; |
| 511 |
> |
myo = e.m.y; |
| 512 |
> |
revline(ebut->x, ebut->y, mxo, myo); |
| 513 |
> |
revbox(xoff+mxo-ebut->x, yoff+myo-ebut->y, |
| 514 |
> |
xoff+mxo-ebut->x+xmax, yoff+myo-ebut->y+ymax); |
| 515 |
|
XMaskEvent(thedisplay,ButtonReleaseMask|ButtonMotionMask,&e.u); |
| 516 |
< |
revbox(nxo, nyo, nxo+xmax, nyo+ymax); |
| 516 |
> |
revline(ebut->x, ebut->y, mxo, myo); |
| 517 |
> |
revbox(xoff+mxo-ebut->x, yoff+myo-ebut->y, |
| 518 |
> |
xoff+mxo-ebut->x+xmax, yoff+myo-ebut->y+ymax); |
| 519 |
|
} |
| 520 |
|
xoff += e.b.x - ebut->x; |
| 521 |
|
yoff += e.b.y - ebut->y; |
| 559 |
|
revbox(x0, y0, x1, y1) /* draw box with reversed lines */ |
| 560 |
|
int x0, y0, x1, y1; |
| 561 |
|
{ |
| 562 |
< |
static GC mygc = 0; |
| 562 |
> |
revline(x0, y0, x1, y0); |
| 563 |
> |
revline(x0, y1, x1, y1); |
| 564 |
> |
revline(x0, y0, x0, y1); |
| 565 |
> |
revline(x1, y0, x1, y1); |
| 566 |
> |
} |
| 567 |
|
|
| 542 |
– |
if (mygc == 0) { |
| 543 |
– |
mygc = XCreateGC(thedisplay, wind, 0, 0); |
| 544 |
– |
XSetFunction(thedisplay, mygc, GXinvert); |
| 545 |
– |
} |
| 546 |
– |
XDrawLine(thedisplay, wind, mygc, x0, y0, x1, y0); |
| 547 |
– |
XDrawLine(thedisplay, wind, mygc, x0, y1, x1, y1); |
| 548 |
– |
XDrawLine(thedisplay, wind, mygc, x0, y0, x0, y1); |
| 549 |
– |
XDrawLine(thedisplay, wind, mygc, x1, y0, x1, y1); |
| 550 |
– |
} /* end of revbox */ |
| 568 |
|
|
| 552 |
– |
|
| 569 |
|
avgbox(clr) /* average color over current box */ |
| 570 |
|
COLOR clr; |
| 571 |
|
{ |
| 611 |
|
register unsigned char *dp; |
| 612 |
|
register int x, err; |
| 613 |
|
int y; |
| 598 |
– |
rgbpixel *inline; |
| 614 |
|
short *cerr; |
| 615 |
|
|
| 616 |
< |
if ((inline = (rgbpixel *)malloc(xmax*sizeof(rgbpixel))) == NULL |
| 617 |
< |
|| (cerr = (short *)calloc(xmax,sizeof(short))) == NULL) |
| 603 |
< |
quit("out of memory in getmono"); |
| 616 |
> |
if ((cerr = (short *)calloc(xmax,sizeof(short))) == NULL) |
| 617 |
> |
quiterr("out of memory in getmono"); |
| 618 |
|
dp = ourdata - 1; |
| 619 |
|
for (y = 0; y < ymax; y++) { |
| 620 |
< |
picreadline3(y, inline); |
| 620 |
> |
if (getscan(y) < 0) |
| 621 |
> |
quiterr("seek error in getmono"); |
| 622 |
> |
normcolrs(scanline, xmax, scale); |
| 623 |
|
err = 0; |
| 624 |
|
for (x = 0; x < xmax; x++) { |
| 625 |
|
if (!(x&7)) |
| 626 |
|
*++dp = 0; |
| 627 |
< |
err += rgb_bright(&inline[x]) + cerr[x]; |
| 627 |
> |
err += normbright(scanline[x]) + cerr[x]; |
| 628 |
|
if (err > 127) |
| 629 |
|
err -= 255; |
| 630 |
|
else |
| 632 |
|
cerr[x] = err >>= 1; |
| 633 |
|
} |
| 634 |
|
} |
| 619 |
– |
free((char *)inline); |
| 635 |
|
free((char *)cerr); |
| 636 |
|
} |
| 637 |
|
|
| 639 |
|
getfull() /* get full (24-bit) data */ |
| 640 |
|
{ |
| 641 |
|
int y; |
| 642 |
< |
|
| 643 |
< |
for (y = 0; y < ymax; y++) |
| 644 |
< |
picreadline3(y, (rgbpixel *)(ourdata+y*xmax*3)); |
| 642 |
> |
register unsigned char *dp; |
| 643 |
> |
register int x; |
| 644 |
> |
/* set gamma correction */ |
| 645 |
> |
setcolrgam(gamcor); |
| 646 |
> |
/* read and convert file */ |
| 647 |
> |
dp = ourdata; |
| 648 |
> |
for (y = 0; y < ymax; y++) { |
| 649 |
> |
if (getscan(y) < 0) |
| 650 |
> |
quiterr("seek error in getfull"); |
| 651 |
> |
if (scale) |
| 652 |
> |
shiftcolrs(scanline, xmax, scale); |
| 653 |
> |
colrs_gambs(scanline, xmax); |
| 654 |
> |
for (x = 0; x < xmax; x++) { |
| 655 |
> |
*dp++ = scanline[x][RED]; |
| 656 |
> |
*dp++ = scanline[x][GRN]; |
| 657 |
> |
*dp++ = scanline[x][BLU]; |
| 658 |
> |
} |
| 659 |
> |
} |
| 660 |
|
} |
| 661 |
|
|
| 662 |
|
|
| 695 |
|
if (scanpos == NULL || scanpos[y] == -1) |
| 696 |
|
return(-1); |
| 697 |
|
if (fseek(fin, scanpos[y], 0) == -1) |
| 698 |
< |
quit("fseek error"); |
| 698 |
> |
quiterr("fseek error"); |
| 699 |
|
cury = y; |
| 700 |
|
} else if (scanpos != NULL) |
| 701 |
|
scanpos[y] = ftell(fin); |
| 741 |
|
register int i, val; |
| 742 |
|
|
| 743 |
|
for (i = 0; i < 256; i++) { |
| 744 |
< |
val = pow(i/256.0, 1.0/gamcor) * 256.0; |
| 744 |
> |
val = pow((i+0.5)/256.0, 1.0/gamcor) * 256.0; |
| 745 |
|
map[0][i] = map[1][i] = map[2][i] = val; |
| 746 |
|
} |
| 747 |
|
} |