| 37 |
|
|
| 38 |
|
#define BORWIDTH 5 /* border width */ |
| 39 |
|
|
| 40 |
+ |
#define ICONSIZ (8*10) /* maximum icon dimension (even 8) */ |
| 41 |
+ |
|
| 42 |
|
#define ourscreen DefaultScreen(thedisplay) |
| 43 |
|
#define ourblack BlackPixel(thedisplay,ourscreen) |
| 44 |
|
#define ourwhite WhitePixel(thedisplay,ourscreen) |
| 45 |
|
#define ourroot RootWindow(thedisplay,ourscreen) |
| 46 |
|
#define ourgc DefaultGC(thedisplay,ourscreen) |
| 47 |
|
|
| 48 |
+ |
#define revline(x0,y0,x1,y1) XDrawLine(thedisplay,wind,revgc,x0,y0,x1,y1) |
| 49 |
+ |
|
| 50 |
|
#define redraw(x,y,w,h) patch_raster(wind,(x)-xoff,(y)-yoff,x,y,w,h,ourras) |
| 51 |
|
|
| 52 |
|
double gamcor = 2.2; /* gamma correction */ |
| 79 |
|
|
| 80 |
|
double exposure = 1.0; /* exposure compensation used */ |
| 81 |
|
|
| 82 |
+ |
int wrongformat = 0; /* input in another format? */ |
| 83 |
+ |
|
| 84 |
+ |
GC revgc; /* graphics context with GXinvert */ |
| 85 |
+ |
|
| 86 |
|
XRASTER *ourras; /* our stored image */ |
| 87 |
|
unsigned char *ourdata; /* our image data */ |
| 88 |
|
|
| 92 |
|
|
| 93 |
|
char *geometry = NULL; /* geometry specification */ |
| 94 |
|
|
| 95 |
+ |
char icondata[ICONSIZ*ICONSIZ/8]; /* icon bitmap data */ |
| 96 |
+ |
int iconwidth = 0, iconheight = 0; |
| 97 |
+ |
|
| 98 |
|
char *progname; |
| 99 |
|
|
| 100 |
|
char errmsg[128]; |
| 163 |
|
} else if (i != argc) |
| 164 |
|
goto userr; |
| 165 |
|
/* get header */ |
| 166 |
< |
getheader(fin, headline); |
| 166 |
> |
getheader(fin, headline, NULL); |
| 167 |
|
/* get picture dimensions */ |
| 168 |
< |
if (fgetresolu(&xmax, &ymax, fin) != (YMAJOR|YDECR)) |
| 169 |
< |
quiterr("bad picture size"); |
| 168 |
> |
if (wrongformat || fgetresolu(&xmax, &ymax, fin) != (YMAJOR|YDECR)) |
| 169 |
> |
quiterr("bad picture format"); |
| 170 |
|
/* set view parameters */ |
| 171 |
|
if (gotview && setview(&ourview) != NULL) |
| 172 |
|
gotview = 0; |
| 190 |
|
{ |
| 191 |
|
static char *altname[] = {"rview","rpict","pinterp",VIEWSTR,NULL}; |
| 192 |
|
register char **an; |
| 193 |
+ |
char fmt[32]; |
| 194 |
|
|
| 195 |
|
if (isexpos(s)) |
| 196 |
|
exposure *= exposval(s); |
| 197 |
< |
else |
| 197 |
> |
else if (isformat(s)) { |
| 198 |
> |
formatval(fmt, s); |
| 199 |
> |
wrongformat = strcmp(fmt, COLRFMT); |
| 200 |
> |
} else |
| 201 |
|
for (an = altname; *an != NULL; an++) |
| 202 |
|
if (!strncmp(*an, s, strlen(*an))) { |
| 203 |
|
if (sscanview(&ourview, s+strlen(*an)) > 0) |
| 209 |
|
|
| 210 |
|
init() /* get data and open window */ |
| 211 |
|
{ |
| 212 |
+ |
XWMHints ourxwmhints; |
| 213 |
+ |
XSetWindowAttributes ourwinattr; |
| 214 |
|
XSizeHints oursizhints; |
| 215 |
|
register int i; |
| 216 |
|
|
| 223 |
|
} |
| 224 |
|
if ((thedisplay = XOpenDisplay(NULL)) == NULL) |
| 225 |
|
quiterr("can't open display; DISPLAY variable set?"); |
| 209 |
– |
wind = XCreateSimpleWindow(thedisplay, |
| 210 |
– |
ourroot, 0, 0, xmax, ymax, BORWIDTH, ourblack, ourwhite); |
| 211 |
– |
if (wind == 0) |
| 212 |
– |
quiterr("can't create window"); |
| 226 |
|
if (maxcolors == 0) { /* get number of available colors */ |
| 227 |
|
i = DisplayPlanes(thedisplay,ourscreen); |
| 228 |
|
maxcolors = i > 8 ? 256 : 1<<i; |
| 229 |
|
if (maxcolors > 4) maxcolors -= 2; |
| 230 |
|
} |
| 231 |
+ |
/* store image */ |
| 232 |
+ |
getras(); |
| 233 |
+ |
/* open window */ |
| 234 |
+ |
ourwinattr.border_pixel = ourblack; |
| 235 |
+ |
ourwinattr.background_pixel = ourwhite; |
| 236 |
+ |
wind = XCreateWindow(thedisplay, ourroot, 0, 0, xmax, ymax, BORWIDTH, |
| 237 |
+ |
0, InputOutput, ourras->visual, |
| 238 |
+ |
CWBackPixel|CWBorderPixel, &ourwinattr); |
| 239 |
+ |
if (wind == 0) |
| 240 |
+ |
quiterr("can't create window"); |
| 241 |
+ |
width = xmax; |
| 242 |
+ |
height = ymax; |
| 243 |
|
fontid = XLoadFont(thedisplay, FONTNAME); |
| 244 |
|
if (fontid == 0) |
| 245 |
|
quiterr("can't get font"); |
| 246 |
|
XSetFont(thedisplay, ourgc, fontid); |
| 247 |
< |
XStoreName(thedisplay, wind, fname == NULL ? progname : fname); |
| 247 |
> |
revgc = XCreateGC(thedisplay, wind, 0, 0); |
| 248 |
> |
XSetFunction(thedisplay, revgc, GXinvert); |
| 249 |
|
XDefineCursor(thedisplay, wind, XCreateFontCursor(thedisplay, |
| 250 |
|
XC_diamond_cross)); |
| 251 |
|
if (geometry != NULL) { |
| 252 |
|
bzero((char *)&oursizhints, sizeof(oursizhints)); |
| 253 |
|
i = XParseGeometry(geometry, &oursizhints.x, &oursizhints.y, |
| 254 |
< |
&oursizhints.width, &oursizhints.height); |
| 254 |
> |
(unsigned *)&oursizhints.width, |
| 255 |
> |
(unsigned *)&oursizhints.height); |
| 256 |
|
if ((i&(WidthValue|HeightValue)) == (WidthValue|HeightValue)) |
| 257 |
|
oursizhints.flags |= USSize; |
| 258 |
|
else { |
| 271 |
|
} |
| 272 |
|
XSetNormalHints(thedisplay, wind, &oursizhints); |
| 273 |
|
} |
| 274 |
< |
/* store image */ |
| 275 |
< |
getras(); |
| 274 |
> |
ourxwmhints.flags = InputHint|IconPixmapHint; |
| 275 |
> |
ourxwmhints.input = True; |
| 276 |
> |
ourxwmhints.icon_pixmap = XCreateBitmapFromData(thedisplay, |
| 277 |
> |
wind, icondata, iconwidth, iconheight); |
| 278 |
> |
XSetWMHints(thedisplay, wind, &ourxwmhints); |
| 279 |
|
XSelectInput(thedisplay, wind, ButtonPressMask|ButtonReleaseMask |
| 280 |
|
|ButtonMotionMask|StructureNotifyMask |
| 281 |
|
|KeyPressMask|ExposureMask); |
| 282 |
|
XMapWindow(thedisplay, wind); |
| 283 |
+ |
/* store name last as ready signal */ |
| 284 |
+ |
XStoreName(thedisplay, wind, fname == NULL ? progname : fname); |
| 285 |
|
return; |
| 286 |
|
memerr: |
| 287 |
|
quiterr("out of memory"); |
| 327 |
|
if (ourras == NULL) |
| 328 |
|
goto fail; |
| 329 |
|
getmono(); |
| 330 |
< |
} else if (XMatchVisualInfo(thedisplay,ourscreen,24,TrueColor,&vinfo)) { |
| 330 |
> |
} else if (XMatchVisualInfo(thedisplay,ourscreen,24,TrueColor,&vinfo) |
| 331 |
> |
/* kludge for DirectColor */ |
| 332 |
> |
|| XMatchVisualInfo(thedisplay,ourscreen,24,DirectColor,&vinfo)) { |
| 333 |
|
ourdata = (unsigned char *)malloc(xmax*ymax*3); |
| 334 |
|
if (ourdata == NULL) |
| 335 |
|
goto fail; |
| 355 |
|
} |
| 356 |
|
return; |
| 357 |
|
fail: |
| 358 |
< |
quit("could not create raster image"); |
| 358 |
> |
quiterr("could not create raster image"); |
| 359 |
|
} |
| 360 |
|
|
| 361 |
|
|
| 429 |
|
sprintf(buf, "%.3f", intens(cval)/exposure); |
| 430 |
|
break; |
| 431 |
|
case 'l': /* luminance */ |
| 432 |
< |
sprintf(buf, "%.0fn", bright(cval)*683.0/exposure); |
| 432 |
> |
sprintf(buf, "%.0fL", luminance(cval)/exposure); |
| 433 |
|
break; |
| 434 |
|
case 'c': /* color */ |
| 435 |
|
comp = pow(2.0, (double)scale); |
| 464 |
|
XBell(thedisplay, 0); |
| 465 |
|
return(-1); |
| 466 |
|
} |
| 467 |
< |
viewray(rorg, rdir, &ourview, |
| 467 |
> |
if (viewray(rorg, rdir, &ourview, |
| 468 |
|
(ekey->x-xoff+.5)/xmax, |
| 469 |
< |
(ymax-1-ekey->y+yoff+.5)/ymax); |
| 469 |
> |
(ymax-1-ekey->y+yoff+.5)/ymax) < 0) |
| 470 |
> |
return(-1); |
| 471 |
|
printf("%e %e %e ", rorg[0], rorg[1], rorg[2]); |
| 472 |
|
printf("%e %e %e\n", rdir[0], rdir[1], rdir[2]); |
| 473 |
|
fflush(stdout); |
| 515 |
|
XButtonReleasedEvent b; |
| 516 |
|
XPointerMovedEvent m; |
| 517 |
|
} e; |
| 518 |
< |
int nxo, nyo; |
| 518 |
> |
int mxo, myo; |
| 519 |
|
|
| 520 |
|
XMaskEvent(thedisplay, ButtonReleaseMask|ButtonMotionMask, &e.u); |
| 521 |
|
while (e.u.type == MotionNotify) { |
| 522 |
< |
nxo = xoff + e.m.x - ebut->x; |
| 523 |
< |
nyo = yoff + e.m.y - ebut->y; |
| 524 |
< |
revbox(nxo, nyo, nxo+xmax, nyo+ymax); |
| 522 |
> |
mxo = e.m.x; |
| 523 |
> |
myo = e.m.y; |
| 524 |
> |
revline(ebut->x, ebut->y, mxo, myo); |
| 525 |
> |
revbox(xoff+mxo-ebut->x, yoff+myo-ebut->y, |
| 526 |
> |
xoff+mxo-ebut->x+xmax, yoff+myo-ebut->y+ymax); |
| 527 |
|
XMaskEvent(thedisplay,ButtonReleaseMask|ButtonMotionMask,&e.u); |
| 528 |
< |
revbox(nxo, nyo, nxo+xmax, nyo+ymax); |
| 528 |
> |
revline(ebut->x, ebut->y, mxo, myo); |
| 529 |
> |
revbox(xoff+mxo-ebut->x, yoff+myo-ebut->y, |
| 530 |
> |
xoff+mxo-ebut->x+xmax, yoff+myo-ebut->y+ymax); |
| 531 |
|
} |
| 532 |
|
xoff += e.b.x - ebut->x; |
| 533 |
|
yoff += e.b.y - ebut->y; |
| 571 |
|
revbox(x0, y0, x1, y1) /* draw box with reversed lines */ |
| 572 |
|
int x0, y0, x1, y1; |
| 573 |
|
{ |
| 574 |
< |
static GC mygc = 0; |
| 574 |
> |
revline(x0, y0, x1, y0); |
| 575 |
> |
revline(x0, y1, x1, y1); |
| 576 |
> |
revline(x0, y0, x0, y1); |
| 577 |
> |
revline(x1, y0, x1, y1); |
| 578 |
> |
} |
| 579 |
|
|
| 537 |
– |
if (mygc == 0) { |
| 538 |
– |
mygc = XCreateGC(thedisplay, wind, 0, 0); |
| 539 |
– |
XSetFunction(thedisplay, mygc, GXinvert); |
| 540 |
– |
} |
| 541 |
– |
XDrawLine(thedisplay, wind, mygc, x0, y0, x1, y0); |
| 542 |
– |
XDrawLine(thedisplay, wind, mygc, x0, y1, x1, y1); |
| 543 |
– |
XDrawLine(thedisplay, wind, mygc, x0, y0, x0, y1); |
| 544 |
– |
XDrawLine(thedisplay, wind, mygc, x1, y0, x1, y1); |
| 545 |
– |
} /* end of revbox */ |
| 580 |
|
|
| 547 |
– |
|
| 581 |
|
avgbox(clr) /* average color over current box */ |
| 582 |
|
COLOR clr; |
| 583 |
|
{ |
| 623 |
|
register unsigned char *dp; |
| 624 |
|
register int x, err; |
| 625 |
|
int y; |
| 593 |
– |
rgbpixel *inline; |
| 626 |
|
short *cerr; |
| 627 |
|
|
| 628 |
< |
if ((inline = (rgbpixel *)malloc(xmax*sizeof(rgbpixel))) == NULL |
| 629 |
< |
|| (cerr = (short *)calloc(xmax,sizeof(short))) == NULL) |
| 598 |
< |
quit("out of memory in getmono"); |
| 628 |
> |
if ((cerr = (short *)calloc(xmax,sizeof(short))) == NULL) |
| 629 |
> |
quiterr("out of memory in getmono"); |
| 630 |
|
dp = ourdata - 1; |
| 631 |
|
for (y = 0; y < ymax; y++) { |
| 632 |
< |
picreadline3(y, inline); |
| 632 |
> |
if (getscan(y) < 0) |
| 633 |
> |
quiterr("seek error in getmono"); |
| 634 |
> |
normcolrs(scanline, xmax, scale); |
| 635 |
> |
add2icon(y, scanline); |
| 636 |
|
err = 0; |
| 637 |
|
for (x = 0; x < xmax; x++) { |
| 638 |
|
if (!(x&7)) |
| 639 |
|
*++dp = 0; |
| 640 |
< |
err += rgb_bright(&inline[x]) + cerr[x]; |
| 640 |
> |
err += normbright(scanline[x]) + cerr[x]; |
| 641 |
|
if (err > 127) |
| 642 |
|
err -= 255; |
| 643 |
|
else |
| 645 |
|
cerr[x] = err >>= 1; |
| 646 |
|
} |
| 647 |
|
} |
| 614 |
– |
free((char *)inline); |
| 648 |
|
free((char *)cerr); |
| 649 |
|
} |
| 650 |
|
|
| 651 |
|
|
| 652 |
+ |
add2icon(y, scan) /* add a scanline to our icon data */ |
| 653 |
+ |
int y; |
| 654 |
+ |
COLR *scan; |
| 655 |
+ |
{ |
| 656 |
+ |
static char *dp = NULL; |
| 657 |
+ |
static short cerr[ICONSIZ]; |
| 658 |
+ |
register int err; |
| 659 |
+ |
register int x, xi; |
| 660 |
+ |
|
| 661 |
+ |
if (iconheight == 0) { /* initialize */ |
| 662 |
+ |
if (xmax <= ICONSIZ && ymax <= ICONSIZ) { |
| 663 |
+ |
iconwidth = xmax; |
| 664 |
+ |
iconheight = ymax; |
| 665 |
+ |
} else if (xmax > ymax) { |
| 666 |
+ |
iconwidth = ICONSIZ; |
| 667 |
+ |
iconheight = ICONSIZ*ymax/xmax; |
| 668 |
+ |
} else { |
| 669 |
+ |
iconwidth = ICONSIZ*xmax/ymax; |
| 670 |
+ |
iconheight = ICONSIZ; |
| 671 |
+ |
} |
| 672 |
+ |
dp = icondata - 1; |
| 673 |
+ |
} |
| 674 |
+ |
if (dp == NULL) /* done already */ |
| 675 |
+ |
return; |
| 676 |
+ |
if (y % (ymax/iconheight)) /* skip this one */ |
| 677 |
+ |
return; |
| 678 |
+ |
err = 0; |
| 679 |
+ |
for (x = 0; x < iconwidth; x++) { |
| 680 |
+ |
if (!(x&7)) |
| 681 |
+ |
*++dp = 0; |
| 682 |
+ |
xi = x*xmax/iconwidth; |
| 683 |
+ |
err += normbright(scan[xi]) + cerr[x]; |
| 684 |
+ |
if (err > 127) |
| 685 |
+ |
err -= 255; |
| 686 |
+ |
else |
| 687 |
+ |
*dp |= 1<<(x&07); |
| 688 |
+ |
cerr[x] = err >>= 1; |
| 689 |
+ |
} |
| 690 |
+ |
if (y >= ymax - ymax/iconheight) /* all done */ |
| 691 |
+ |
dp = NULL; |
| 692 |
+ |
} |
| 693 |
+ |
|
| 694 |
+ |
|
| 695 |
|
getfull() /* get full (24-bit) data */ |
| 696 |
|
{ |
| 697 |
|
int y; |
| 698 |
< |
|
| 699 |
< |
for (y = 0; y < ymax; y++) |
| 700 |
< |
picreadline3(y, (rgbpixel *)(ourdata+y*xmax*3)); |
| 698 |
> |
register unsigned char *dp; |
| 699 |
> |
register int x; |
| 700 |
> |
/* set gamma correction */ |
| 701 |
> |
setcolrgam(gamcor); |
| 702 |
> |
/* read and convert file */ |
| 703 |
> |
dp = ourdata; |
| 704 |
> |
for (y = 0; y < ymax; y++) { |
| 705 |
> |
if (getscan(y) < 0) |
| 706 |
> |
quiterr("seek error in getfull"); |
| 707 |
> |
if (scale) |
| 708 |
> |
shiftcolrs(scanline, xmax, scale); |
| 709 |
> |
colrs_gambs(scanline, xmax); |
| 710 |
> |
add2icon(y, scanline); |
| 711 |
> |
for (x = 0; x < xmax; x++) { |
| 712 |
> |
*dp++ = scanline[x][RED]; |
| 713 |
> |
*dp++ = scanline[x][GRN]; |
| 714 |
> |
*dp++ = scanline[x][BLU]; |
| 715 |
> |
} |
| 716 |
> |
} |
| 717 |
|
} |
| 718 |
|
|
| 719 |
|
|
| 752 |
|
if (scanpos == NULL || scanpos[y] == -1) |
| 753 |
|
return(-1); |
| 754 |
|
if (fseek(fin, scanpos[y], 0) == -1) |
| 755 |
< |
quit("fseek error"); |
| 755 |
> |
quiterr("fseek error"); |
| 756 |
|
cury = y; |
| 757 |
|
} else if (scanpos != NULL) |
| 758 |
|
scanpos[y] = ftell(fin); |
| 775 |
|
quiterr("cannot seek for picreadline"); |
| 776 |
|
/* convert scanline */ |
| 777 |
|
normcolrs(scanline, xmax, scale); |
| 778 |
+ |
add2icon(y, scanline); |
| 779 |
|
for (i = 0; i < xmax; i++) { |
| 780 |
|
l3[i].r = scanline[i][RED]; |
| 781 |
|
l3[i].g = scanline[i][GRN]; |
| 799 |
|
register int i, val; |
| 800 |
|
|
| 801 |
|
for (i = 0; i < 256; i++) { |
| 802 |
< |
val = pow(i/256.0, 1.0/gamcor) * 256.0; |
| 802 |
> |
val = pow((i+0.5)/256.0, 1.0/gamcor) * 256.0; |
| 803 |
|
map[0][i] = map[1][i] = map[2][i] = val; |
| 804 |
|
} |
| 805 |
|
} |