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#include "standard.h" |
23 |
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|
24 |
+ |
#include <signal.h> |
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#include <X11/Xlib.h> |
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#include <X11/cursorfont.h> |
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#include <X11/Xutil.h> |
56 |
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#define redraw(x,y,w,h) patch_raster(wind,(x)-xoff,(y)-yoff,x,y,w,h,ourras) |
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|
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double gamcor = 2.2; /* gamma correction */ |
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char *gamstr = NULL; /* gamma value override */ |
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|
61 |
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int dither = 1; /* dither colors? */ |
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int fast = 0; /* keep picture in Pixmap? */ |
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int xoff = 0; /* x image offset */ |
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int yoff = 0; /* y image offset */ |
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|
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int parent = 0; /* number of children, -1 if child */ |
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|
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VIEW ourview = STDVIEW; /* image view parameters */ |
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int gotview = 0; /* got parameters from file */ |
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|
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|
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extern long ftell(); |
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|
120 |
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extern char *getenv(); |
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|
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Display *thedisplay; |
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Atom closedownAtom, wmProtocolsAtom; |
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|
125 |
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int sigrecv; |
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|
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int onsig() { sigrecv++; } |
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|
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|
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main(argc, argv) |
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int argc; |
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char *argv[]; |
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{ |
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extern char *getenv(); |
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– |
char *gv; |
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int headline(); |
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int i; |
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int pid; |
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|
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progname = argv[0]; |
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– |
if ((gv = getenv("GAMMA")) != NULL) |
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– |
gamcor = atof(gv); |
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|
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for (i = 1; i < argc; i++) |
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if (argv[i][0] == '-') |
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if (argv[i][2] == 'e') |
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geometry = argv[++i]; |
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else |
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gamcor = atof(argv[++i]); |
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> |
gamstr = argv[++i]; |
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break; |
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default: |
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goto userr; |
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else |
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break; |
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|
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< |
if (i == argc-1) { |
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> |
if (i > argc) |
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goto userr; |
182 |
> |
while (i < argc-1) { |
183 |
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sigrecv = 0; |
184 |
> |
signal(SIGCONT, onsig); |
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if ((pid=fork()) == 0) { /* a child for each picture */ |
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parent = -1; |
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break; |
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} |
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if (pid < 0) |
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quiterr("fork failed"); |
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> |
parent++; |
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> |
while (!sigrecv) |
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pause(); /* wait for wake-up call */ |
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i++; |
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} |
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if (i < argc) { /* open picture file */ |
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fname = argv[i]; |
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fin = fopen(fname, "r"); |
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if (fin == NULL) { |
200 |
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sprintf(errmsg, "cannot open file \"%s\"", fname); |
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quiterr(errmsg); |
179 |
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} |
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< |
} else if (i != argc) |
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< |
goto userr; |
199 |
> |
if (fin == NULL) |
200 |
> |
quiterr("cannot open picture file"); |
201 |
> |
} |
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/* get header */ |
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getheader(fin, headline, NULL); |
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/* get picture dimensions */ |
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|
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init(argc, argv); /* get file and open window */ |
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|
217 |
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if (parent < 0) { |
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kill(getppid(), SIGCONT); /* signal parent if child */ |
219 |
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sigrecv--; |
220 |
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} |
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for ( ; ; ) |
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getevent(); /* main loop */ |
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userr: |
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fprintf(stderr, |
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< |
"Usage: %s [-di disp][[-ge] spec][-b][-m][-d][-f][-c nclrs][-e +/-stops] pic\n", |
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> |
"Usage: %s [-di disp][[-ge] spec][-b][-m][-d][-f][-c nclrs][-e +/-stops][-g gamcor] pic ..\n", |
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progname); |
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exit(1); |
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} |
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name += i+1; |
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if ((thedisplay = XOpenDisplay(dispname)) == NULL) |
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quiterr("cannot open display"); |
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/* set gamma value */ |
276 |
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if (gamstr == NULL) /* get it from the X server */ |
277 |
+ |
gamstr = XGetDefault(thedisplay, "radiance", "gamma"); |
278 |
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if (gamstr == NULL) /* get it from the environment */ |
279 |
+ |
gamstr = getenv("GAMMA"); |
280 |
+ |
if (gamstr != NULL) |
281 |
+ |
gamcor = atof(gamstr); |
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/* get best visual for default screen */ |
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getbestvis(); |
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/* store image */ |
320 |
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quiterr("cannot create window"); |
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width = xmax; |
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height = ymax; |
323 |
< |
xgcv.foreground = ourblack; |
293 |
< |
xgcv.background = ourwhite; |
323 |
> |
/* prepare graphics drawing context */ |
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if ((xgcv.font = XLoadFont(thedisplay, FONTNAME)) == 0) |
325 |
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quiterr("cannot get font"); |
326 |
+ |
xgcv.foreground = ourblack; |
327 |
+ |
xgcv.background = ourwhite; |
328 |
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ourgc = XCreateGC(thedisplay, wind, GCForeground|GCBackground| |
329 |
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GCFont, &xgcv); |
330 |
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xgcv.function = GXinvert; |
360 |
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quiterr(err) /* print message and exit */ |
361 |
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char *err; |
362 |
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{ |
363 |
< |
if (err != NULL) { |
364 |
< |
fprintf(stderr, "%s: %s\n", progname, err); |
365 |
< |
exit(1); |
363 |
> |
register int es; |
364 |
> |
int cs; |
365 |
> |
|
366 |
> |
if (es = err != NULL) |
367 |
> |
fprintf(stderr, "%s: %s: %s\n", progname, |
368 |
> |
fname==NULL?"<stdin>":fname, err); |
369 |
> |
if (thedisplay != NULL) |
370 |
> |
XCloseDisplay(thedisplay); |
371 |
> |
if (parent < 0 & sigrecv == 0) |
372 |
> |
kill(getppid(), SIGCONT); |
373 |
> |
while (parent > 0 && wait(&cs) != -1) { /* wait for any children */ |
374 |
> |
if (es == 0) |
375 |
> |
es = cs>>8 & 0xff; |
376 |
> |
parent--; |
377 |
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} |
378 |
< |
exit(0); |
378 |
> |
exit(es); |
379 |
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} |
380 |
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|
381 |
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|
579 |
|
else |
580 |
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getbox(&xev.xbutton); |
581 |
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break; |
582 |
< |
case ClientMessage: |
582 |
> |
case ClientMessage: |
583 |
|
if ((xev.xclient.message_type == wmProtocolsAtom) && |
584 |
|
(xev.xclient.data.l[0] == closedownAtom)) |
585 |
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quiterr(NULL); |
677 |
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case '@': /* adaptation level */ |
678 |
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if (avgbox(cval) == -1) |
679 |
|
return(-1); |
680 |
< |
comp = com=='@' |
681 |
< |
? 106./pow(1.219+pow(luminance(cval)/exposure,.4),2.5)/exposure |
682 |
< |
: .5/bright(cval) ; |
680 |
> |
comp = bright(cval); |
681 |
> |
if (comp < 1e-20) { |
682 |
> |
XBell(thedisplay, 0); |
683 |
> |
return(-1); |
684 |
> |
} |
685 |
> |
if (com == '@') |
686 |
> |
comp = 106./exposure/ |
687 |
> |
pow(1.219+pow(comp*WHTEFFICACY/exposure,.4),2.5); |
688 |
> |
else |
689 |
> |
comp = .5/comp; |
690 |
|
comp = log(comp)/.69315 - scale; |
691 |
|
n = comp < 0 ? comp-.5 : comp+.5 ; /* round */ |
692 |
|
if (n == 0) |
947 |
|
colrs_gambs(scanline, xmax); |
948 |
|
if (ourras->image->blue_mask & 1) |
949 |
|
for (x = 0; x < xmax; x++) |
950 |
< |
*dp++ = scanline[x][RED] << 16 | |
951 |
< |
scanline[x][GRN] << 8 | |
952 |
< |
scanline[x][BLU] ; |
950 |
> |
*dp++ = (unsigned int4)scanline[x][RED] << 16 | |
951 |
> |
(unsigned int4)scanline[x][GRN] << 8 | |
952 |
> |
(unsigned int4)scanline[x][BLU] ; |
953 |
|
else |
954 |
|
for (x = 0; x < xmax; x++) |
955 |
< |
*dp++ = scanline[x][RED] | |
956 |
< |
scanline[x][GRN] << 8 | |
957 |
< |
scanline[x][BLU] << 16 ; |
955 |
> |
*dp++ = (unsigned int4)scanline[x][RED] | |
956 |
> |
(unsigned int4)scanline[x][GRN] << 8 | |
957 |
> |
(unsigned int4)scanline[x][BLU] << 16 ; |
958 |
|
} |
959 |
|
} |
960 |
|
|
993 |
|
getmapped() /* get color-mapped data */ |
994 |
|
{ |
995 |
|
int y; |
996 |
+ |
/* make sure we can do it first */ |
997 |
+ |
if (fname == NULL) |
998 |
+ |
quiterr("cannot map colors from standard input"); |
999 |
|
/* set gamma correction */ |
1000 |
|
setcolrgam(gamcor); |
1001 |
|
/* make histogram */ |
1002 |
|
new_histo(); |
1003 |
|
for (y = 0; y < ymax; y++) { |
1004 |
|
if (getscan(y) < 0) |
1005 |
< |
quiterr("seek error in getmapped"); |
1005 |
> |
break; |
1006 |
|
add2icon(y, scanline); |
1007 |
|
if (scale) |
1008 |
|
shiftcolrs(scanline, xmax, scale); |
1013 |
|
if (!new_clrtab(maxcolors)) |
1014 |
|
quiterr("cannot create color map"); |
1015 |
|
for (y = 0; y < ymax; y++) { |
1016 |
< |
if (getscan(y) < 0) |
964 |
< |
quiterr("seek error in getmapped"); |
1016 |
> |
getscan(y); |
1017 |
|
if (scale) |
1018 |
|
shiftcolrs(scanline, xmax, scale); |
1019 |
|
colrs_gambs(scanline, xmax); |
1056 |
|
getscan(y) |
1057 |
|
int y; |
1058 |
|
{ |
1059 |
+ |
static int trunced = -1; /* truncated file? */ |
1060 |
+ |
skipit: |
1061 |
+ |
if (trunced >= 0 && y >= trunced) { |
1062 |
+ |
bzero(scanline, xmax*sizeof(COLR)); |
1063 |
+ |
return(-1); |
1064 |
+ |
} |
1065 |
|
if (y != cury) { |
1066 |
|
if (scanpos == NULL || scanpos[y] == -1) |
1067 |
|
return(-1); |
1071 |
|
} else if (scanpos != NULL && scanpos[y] == -1) |
1072 |
|
scanpos[y] = ftell(fin); |
1073 |
|
|
1074 |
< |
if (freadcolrs(scanline, xmax, fin) < 0) |
1075 |
< |
quiterr("read error"); |
1076 |
< |
|
1074 |
> |
if (freadcolrs(scanline, xmax, fin) < 0) { |
1075 |
> |
fprintf(stderr, "%s: %s: unfinished picture\n", |
1076 |
> |
progname, fname==NULL?"<stdin>":fname); |
1077 |
> |
trunced = y; |
1078 |
> |
goto skipit; |
1079 |
> |
} |
1080 |
|
cury++; |
1081 |
|
return(0); |
1082 |
|
} |