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 |
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|
114 |
|
char errmsg[128]; |
115 |
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|
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 |
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|
129 |
+ |
|
130 |
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main(argc, argv) |
131 |
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int argc; |
132 |
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char *argv[]; |
133 |
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{ |
129 |
– |
extern char *getenv(); |
130 |
– |
char *gv; |
134 |
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int headline(); |
135 |
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int i; |
136 |
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int pid; |
137 |
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|
138 |
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progname = argv[0]; |
136 |
– |
if ((gv = getenv("GAMMA")) != NULL) |
137 |
– |
gamcor = atof(gv); |
139 |
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|
140 |
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for (i = 1; i < argc; i++) |
141 |
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if (argv[i][0] == '-') |
147 |
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greyscale = !greyscale; |
148 |
|
break; |
149 |
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case 'm': |
150 |
+ |
greyscale = 1; |
151 |
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maxcolors = 2; |
152 |
|
break; |
153 |
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case 'd': |
168 |
|
if (argv[i][2] == 'e') |
169 |
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geometry = argv[++i]; |
170 |
|
else |
171 |
< |
gamcor = atof(argv[++i]); |
171 |
> |
gamstr = argv[++i]; |
172 |
|
break; |
173 |
|
default: |
174 |
|
goto userr; |
181 |
|
if (i > argc) |
182 |
|
goto userr; |
183 |
|
while (i < argc-1) { |
184 |
+ |
sigrecv = 0; |
185 |
+ |
signal(SIGCONT, onsig); |
186 |
|
if ((pid=fork()) == 0) { /* a child for each picture */ |
187 |
|
parent = -1; |
188 |
|
break; |
190 |
|
if (pid < 0) |
191 |
|
quiterr("fork failed"); |
192 |
|
parent++; |
193 |
< |
signal(SIGCONT, noop); |
194 |
< |
pause(); /* wait for wake-up call */ |
193 |
> |
while (!sigrecv) |
194 |
> |
pause(); /* wait for wake-up call */ |
195 |
|
i++; |
196 |
|
} |
197 |
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if (i < argc) { /* open picture file */ |
198 |
|
fname = argv[i]; |
199 |
|
fin = fopen(fname, "r"); |
200 |
< |
if (fin == NULL) { |
201 |
< |
sprintf(errmsg, "cannot open file \"%s\"", fname); |
198 |
< |
quiterr(errmsg); |
199 |
< |
} |
200 |
> |
if (fin == NULL) |
201 |
> |
quiterr("cannot open picture file"); |
202 |
|
} |
203 |
|
/* get header */ |
204 |
|
getheader(fin, headline, NULL); |
215 |
|
|
216 |
|
init(argc, argv); /* get file and open window */ |
217 |
|
|
216 |
– |
if (parent < 0) |
217 |
– |
kill(getppid(), SIGCONT); /* signal parent if child */ |
218 |
– |
|
218 |
|
for ( ; ; ) |
219 |
|
getevent(); /* main loop */ |
220 |
|
userr: |
221 |
|
fprintf(stderr, |
222 |
< |
"Usage: %s [-di disp][[-ge] spec][-b][-m][-d][-f][-c nclrs][-e +/-stops] pic ..\n", |
222 |
> |
"Usage: %s [-di disp][[-ge] spec][-b][-m][-d][-f][-c nclrs][-e +/-stops][-g gamcor] pic ..\n", |
223 |
|
progname); |
224 |
|
exit(1); |
225 |
|
} |
269 |
|
name += i+1; |
270 |
|
if ((thedisplay = XOpenDisplay(dispname)) == NULL) |
271 |
|
quiterr("cannot open display"); |
272 |
+ |
/* set gamma value */ |
273 |
+ |
if (gamstr == NULL) /* get it from the X server */ |
274 |
+ |
gamstr = XGetDefault(thedisplay, "radiance", "gamma"); |
275 |
+ |
if (gamstr == NULL) /* get it from the environment */ |
276 |
+ |
gamstr = getenv("DISPLAY_GAMMA"); |
277 |
+ |
if (gamstr != NULL) |
278 |
+ |
gamcor = atof(gamstr); |
279 |
|
/* get best visual for default screen */ |
280 |
|
getbestvis(); |
281 |
|
/* store image */ |
302 |
|
} |
303 |
|
} |
304 |
|
/* open window */ |
305 |
+ |
i = CWEventMask|CWCursor|CWBackPixel|CWBorderPixel; |
306 |
|
ourwinattr.border_pixel = ourwhite; |
307 |
|
ourwinattr.background_pixel = ourblack; |
308 |
< |
ourwinattr.colormap = XCreateColormap(thedisplay, ourroot, |
309 |
< |
ourvis.visual, AllocNone); |
308 |
> |
if (ourvis.visual != DefaultVisual(thedisplay,ourscreen)) { |
309 |
> |
ourwinattr.colormap = newcmap(thedisplay, ourscreen, ourvis.visual); |
310 |
> |
i |= CWColormap; |
311 |
> |
} |
312 |
|
ourwinattr.event_mask = ExposureMask|KeyPressMask|ButtonPressMask| |
313 |
|
ButtonReleaseMask|ButtonMotionMask|StructureNotifyMask; |
314 |
|
ourwinattr.cursor = XCreateFontCursor(thedisplay, XC_diamond_cross); |
315 |
|
wind = XCreateWindow(thedisplay, ourroot, xszhints.x, xszhints.y, |
316 |
|
xszhints.width, xszhints.height, BORWIDTH, |
317 |
< |
ourvis.depth, InputOutput, ourvis.visual, CWEventMask| |
318 |
< |
CWCursor|CWBackPixel|CWBorderPixel|CWColormap, &ourwinattr); |
317 |
> |
ourvis.depth, InputOutput, ourvis.visual, |
318 |
> |
i, &ourwinattr); |
319 |
|
if (wind == 0) |
320 |
|
quiterr("cannot create window"); |
321 |
|
width = xmax; |
322 |
|
height = ymax; |
323 |
< |
xgcv.foreground = ourblack; |
315 |
< |
xgcv.background = ourwhite; |
323 |
> |
/* prepare graphics drawing context */ |
324 |
|
if ((xgcv.font = XLoadFont(thedisplay, FONTNAME)) == 0) |
325 |
|
quiterr("cannot get font"); |
326 |
+ |
xgcv.foreground = ourblack; |
327 |
+ |
xgcv.background = ourwhite; |
328 |
|
ourgc = XCreateGC(thedisplay, wind, GCForeground|GCBackground| |
329 |
|
GCFont, &xgcv); |
330 |
|
xgcv.function = GXinvert; |
353 |
|
XSetWMProtocols(thedisplay, wind, &closedownAtom, 1); |
354 |
|
|
355 |
|
XMapWindow(thedisplay, wind); |
346 |
– |
return; |
356 |
|
} /* end of init */ |
357 |
|
|
358 |
|
|
365 |
|
if (es = err != NULL) |
366 |
|
fprintf(stderr, "%s: %s: %s\n", progname, |
367 |
|
fname==NULL?"<stdin>":fname, err); |
368 |
< |
if (parent > 0 & wind != 0) { |
369 |
< |
XDestroyWindow(thedisplay, wind); |
370 |
< |
XFlush(thedisplay); |
371 |
< |
} |
368 |
> |
if (thedisplay != NULL) |
369 |
> |
XCloseDisplay(thedisplay); |
370 |
> |
if (parent < 0 & sigrecv == 0) |
371 |
> |
kill(getppid(), SIGCONT); |
372 |
|
while (parent > 0 && wait(&cs) != -1) { /* wait for any children */ |
373 |
|
if (es == 0) |
374 |
|
es = cs>>8 & 0xff; |
561 |
|
map_rcolors(ourras, wind); |
562 |
|
if (fast) |
563 |
|
make_rpixmap(ourras, wind); |
564 |
+ |
if (parent < 0 & sigrecv == 0) { /* notify parent */ |
565 |
+ |
kill(getppid(), SIGCONT); |
566 |
+ |
sigrecv--; |
567 |
+ |
} |
568 |
|
break; |
569 |
|
case UnmapNotify: |
570 |
|
if (!fast) |
680 |
|
case '@': /* adaptation level */ |
681 |
|
if (avgbox(cval) == -1) |
682 |
|
return(-1); |
683 |
< |
comp = com=='@' |
684 |
< |
? 106./pow(1.219+pow(luminance(cval)/exposure,.4),2.5)/exposure |
685 |
< |
: .5/bright(cval) ; |
683 |
> |
comp = bright(cval); |
684 |
> |
if (comp < 1e-20) { |
685 |
> |
XBell(thedisplay, 0); |
686 |
> |
return(-1); |
687 |
> |
} |
688 |
> |
if (com == '@') |
689 |
> |
comp = 106./exposure/ |
690 |
> |
pow(1.219+pow(comp*WHTEFFICACY/exposure,.4),2.5); |
691 |
> |
else |
692 |
> |
comp = .5/comp; |
693 |
|
comp = log(comp)/.69315 - scale; |
694 |
|
n = comp < 0 ? comp-.5 : comp+.5 ; /* round */ |
695 |
|
if (n == 0) |
950 |
|
colrs_gambs(scanline, xmax); |
951 |
|
if (ourras->image->blue_mask & 1) |
952 |
|
for (x = 0; x < xmax; x++) |
953 |
< |
*dp++ = scanline[x][RED] << 16 | |
954 |
< |
scanline[x][GRN] << 8 | |
955 |
< |
scanline[x][BLU] ; |
953 |
> |
*dp++ = (unsigned int4)scanline[x][RED] << 16 | |
954 |
> |
(unsigned int4)scanline[x][GRN] << 8 | |
955 |
> |
(unsigned int4)scanline[x][BLU] ; |
956 |
|
else |
957 |
|
for (x = 0; x < xmax; x++) |
958 |
< |
*dp++ = scanline[x][RED] | |
959 |
< |
scanline[x][GRN] << 8 | |
960 |
< |
scanline[x][BLU] << 16 ; |
958 |
> |
*dp++ = (unsigned int4)scanline[x][RED] | |
959 |
> |
(unsigned int4)scanline[x][GRN] << 8 | |
960 |
> |
(unsigned int4)scanline[x][BLU] << 16 ; |
961 |
|
} |
962 |
|
} |
963 |
|
|
1002 |
|
/* set gamma correction */ |
1003 |
|
setcolrgam(gamcor); |
1004 |
|
/* make histogram */ |
1005 |
< |
new_histo(); |
1005 |
> |
if (new_histo((long)xmax*ymax) == -1) |
1006 |
> |
quiterr("cannot initialize histogram"); |
1007 |
|
for (y = 0; y < ymax; y++) { |
1008 |
|
if (getscan(y) < 0) |
1009 |
|
break; |