| 56 |
|
#define redraw(x,y,w,h) patch_raster(wind,(x)-xoff,(y)-yoff,x,y,w,h,ourras) |
| 57 |
|
|
| 58 |
|
double gamcor = 2.2; /* gamma correction */ |
| 59 |
+ |
char *gamstr = NULL; /* gamma value override */ |
| 60 |
|
|
| 61 |
|
int dither = 1; /* dither colors? */ |
| 62 |
|
int fast = 0; /* keep picture in Pixmap? */ |
| 113 |
|
|
| 114 |
|
char errmsg[128]; |
| 115 |
|
|
| 116 |
< |
extern BYTE clrtab[256][3]; /* global color map */ |
| 116 |
> |
BYTE clrtab[256][3]; /* global color map */ |
| 117 |
|
|
| 118 |
|
extern long ftell(); |
| 119 |
|
|
| 120 |
+ |
extern char *getenv(); |
| 121 |
+ |
|
| 122 |
|
Display *thedisplay; |
| 123 |
|
Atom closedownAtom, wmProtocolsAtom; |
| 124 |
|
|
| 125 |
< |
int noop() {} |
| 125 |
> |
int sigrecv; |
| 126 |
|
|
| 127 |
+ |
int onsig() { sigrecv++; } |
| 128 |
|
|
| 129 |
+ |
|
| 130 |
|
main(argc, argv) |
| 131 |
|
int argc; |
| 132 |
|
char *argv[]; |
| 133 |
|
{ |
| 129 |
– |
extern char *getenv(); |
| 130 |
– |
char *gv; |
| 134 |
|
int headline(); |
| 135 |
|
int i; |
| 136 |
|
int pid; |
| 137 |
|
|
| 138 |
|
progname = argv[0]; |
| 136 |
– |
if ((gv = getenv("GAMMA")) != NULL) |
| 137 |
– |
gamcor = atof(gv); |
| 139 |
|
|
| 140 |
|
for (i = 1; i < argc; i++) |
| 141 |
|
if (argv[i][0] == '-') |
| 167 |
|
if (argv[i][2] == 'e') |
| 168 |
|
geometry = argv[++i]; |
| 169 |
|
else |
| 170 |
< |
gamcor = atof(argv[++i]); |
| 170 |
> |
gamstr = argv[++i]; |
| 171 |
|
break; |
| 172 |
|
default: |
| 173 |
|
goto userr; |
| 180 |
|
if (i > argc) |
| 181 |
|
goto userr; |
| 182 |
|
while (i < argc-1) { |
| 183 |
+ |
sigrecv = 0; |
| 184 |
+ |
signal(SIGCONT, onsig); |
| 185 |
|
if ((pid=fork()) == 0) { /* a child for each picture */ |
| 186 |
|
parent = -1; |
| 187 |
|
break; |
| 189 |
|
if (pid < 0) |
| 190 |
|
quiterr("fork failed"); |
| 191 |
|
parent++; |
| 192 |
< |
signal(SIGCONT, noop); |
| 193 |
< |
pause(); /* wait for wake-up call */ |
| 192 |
> |
while (!sigrecv) |
| 193 |
> |
pause(); /* wait for wake-up call */ |
| 194 |
|
i++; |
| 195 |
|
} |
| 196 |
|
if (i < argc) { /* open picture file */ |
| 197 |
|
fname = argv[i]; |
| 198 |
|
fin = fopen(fname, "r"); |
| 199 |
< |
if (fin == NULL) { |
| 200 |
< |
sprintf(errmsg, "cannot open file \"%s\"", fname); |
| 198 |
< |
quiterr(errmsg); |
| 199 |
< |
} |
| 199 |
> |
if (fin == NULL) |
| 200 |
> |
quiterr("cannot open picture file"); |
| 201 |
|
} |
| 202 |
|
/* get header */ |
| 203 |
|
getheader(fin, headline, NULL); |
| 214 |
|
|
| 215 |
|
init(argc, argv); /* get file and open window */ |
| 216 |
|
|
| 216 |
– |
if (parent < 0) |
| 217 |
– |
kill(getppid(), SIGCONT); /* signal parent if child */ |
| 218 |
– |
|
| 217 |
|
for ( ; ; ) |
| 218 |
|
getevent(); /* main loop */ |
| 219 |
|
userr: |
| 220 |
|
fprintf(stderr, |
| 221 |
< |
"Usage: %s [-di disp][[-ge] spec][-b][-m][-d][-f][-c nclrs][-e +/-stops] pic ..\n", |
| 221 |
> |
"Usage: %s [-di disp][[-ge] spec][-b][-m][-d][-f][-c nclrs][-e +/-stops][-g gamcor] pic ..\n", |
| 222 |
|
progname); |
| 223 |
|
exit(1); |
| 224 |
|
} |
| 268 |
|
name += i+1; |
| 269 |
|
if ((thedisplay = XOpenDisplay(dispname)) == NULL) |
| 270 |
|
quiterr("cannot open display"); |
| 271 |
+ |
/* set gamma value */ |
| 272 |
+ |
if (gamstr == NULL) /* get it from the X server */ |
| 273 |
+ |
gamstr = XGetDefault(thedisplay, "radiance", "gamma"); |
| 274 |
+ |
if (gamstr == NULL) /* get it from the environment */ |
| 275 |
+ |
gamstr = getenv("DISPLAY_GAMMA"); |
| 276 |
+ |
if (gamstr != NULL) |
| 277 |
+ |
gamcor = atof(gamstr); |
| 278 |
|
/* get best visual for default screen */ |
| 279 |
|
getbestvis(); |
| 280 |
|
/* store image */ |
| 316 |
|
quiterr("cannot create window"); |
| 317 |
|
width = xmax; |
| 318 |
|
height = ymax; |
| 319 |
< |
xgcv.foreground = ourblack; |
| 315 |
< |
xgcv.background = ourwhite; |
| 319 |
> |
/* prepare graphics drawing context */ |
| 320 |
|
if ((xgcv.font = XLoadFont(thedisplay, FONTNAME)) == 0) |
| 321 |
|
quiterr("cannot get font"); |
| 322 |
+ |
xgcv.foreground = ourblack; |
| 323 |
+ |
xgcv.background = ourwhite; |
| 324 |
|
ourgc = XCreateGC(thedisplay, wind, GCForeground|GCBackground| |
| 325 |
|
GCFont, &xgcv); |
| 326 |
|
xgcv.function = GXinvert; |
| 349 |
|
XSetWMProtocols(thedisplay, wind, &closedownAtom, 1); |
| 350 |
|
|
| 351 |
|
XMapWindow(thedisplay, wind); |
| 346 |
– |
return; |
| 352 |
|
} /* end of init */ |
| 353 |
|
|
| 354 |
|
|
| 361 |
|
if (es = err != NULL) |
| 362 |
|
fprintf(stderr, "%s: %s: %s\n", progname, |
| 363 |
|
fname==NULL?"<stdin>":fname, err); |
| 364 |
< |
if (parent > 0 & wind != 0) { |
| 365 |
< |
XDestroyWindow(thedisplay, wind); |
| 366 |
< |
XFlush(thedisplay); |
| 367 |
< |
} |
| 364 |
> |
if (thedisplay != NULL) |
| 365 |
> |
XCloseDisplay(thedisplay); |
| 366 |
> |
if (parent < 0 & sigrecv == 0) |
| 367 |
> |
kill(getppid(), SIGCONT); |
| 368 |
|
while (parent > 0 && wait(&cs) != -1) { /* wait for any children */ |
| 369 |
|
if (es == 0) |
| 370 |
|
es = cs>>8 & 0xff; |
| 557 |
|
map_rcolors(ourras, wind); |
| 558 |
|
if (fast) |
| 559 |
|
make_rpixmap(ourras, wind); |
| 560 |
+ |
if (parent < 0 & sigrecv == 0) { /* notify parent */ |
| 561 |
+ |
kill(getppid(), SIGCONT); |
| 562 |
+ |
sigrecv--; |
| 563 |
+ |
} |
| 564 |
|
break; |
| 565 |
|
case UnmapNotify: |
| 566 |
|
if (!fast) |
| 676 |
|
case '@': /* adaptation level */ |
| 677 |
|
if (avgbox(cval) == -1) |
| 678 |
|
return(-1); |
| 679 |
< |
comp = com=='@' |
| 680 |
< |
? 106./pow(1.219+pow(luminance(cval)/exposure,.4),2.5)/exposure |
| 681 |
< |
: .5/bright(cval) ; |
| 679 |
> |
comp = bright(cval); |
| 680 |
> |
if (comp < 1e-20) { |
| 681 |
> |
XBell(thedisplay, 0); |
| 682 |
> |
return(-1); |
| 683 |
> |
} |
| 684 |
> |
if (com == '@') |
| 685 |
> |
comp = 106./exposure/ |
| 686 |
> |
pow(1.219+pow(comp*WHTEFFICACY/exposure,.4),2.5); |
| 687 |
> |
else |
| 688 |
> |
comp = .5/comp; |
| 689 |
|
comp = log(comp)/.69315 - scale; |
| 690 |
|
n = comp < 0 ? comp-.5 : comp+.5 ; /* round */ |
| 691 |
|
if (n == 0) |
| 946 |
|
colrs_gambs(scanline, xmax); |
| 947 |
|
if (ourras->image->blue_mask & 1) |
| 948 |
|
for (x = 0; x < xmax; x++) |
| 949 |
< |
*dp++ = scanline[x][RED] << 16 | |
| 950 |
< |
scanline[x][GRN] << 8 | |
| 951 |
< |
scanline[x][BLU] ; |
| 949 |
> |
*dp++ = (unsigned int4)scanline[x][RED] << 16 | |
| 950 |
> |
(unsigned int4)scanline[x][GRN] << 8 | |
| 951 |
> |
(unsigned int4)scanline[x][BLU] ; |
| 952 |
|
else |
| 953 |
|
for (x = 0; x < xmax; x++) |
| 954 |
< |
*dp++ = scanline[x][RED] | |
| 955 |
< |
scanline[x][GRN] << 8 | |
| 956 |
< |
scanline[x][BLU] << 16 ; |
| 954 |
> |
*dp++ = (unsigned int4)scanline[x][RED] | |
| 955 |
> |
(unsigned int4)scanline[x][GRN] << 8 | |
| 956 |
> |
(unsigned int4)scanline[x][BLU] << 16 ; |
| 957 |
|
} |
| 958 |
|
} |
| 959 |
|
|
| 998 |
|
/* set gamma correction */ |
| 999 |
|
setcolrgam(gamcor); |
| 1000 |
|
/* make histogram */ |
| 1001 |
< |
new_histo(); |
| 1001 |
> |
if (new_histo((long)xmax*ymax) == -1) |
| 1002 |
> |
quiterr("cannot initialize histogram"); |
| 1003 |
|
for (y = 0; y < ymax; y++) { |
| 1004 |
|
if (getscan(y) < 0) |
| 1005 |
|
break; |