| 1 |
< |
/* Copyright (c) 1991 Regents of the University of California */ |
| 1 |
> |
/* Copyright (c) 1992 Regents of the University of California */ |
| 2 |
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| 3 |
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#ifndef lint |
| 4 |
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static char SCCSid[] = "$SunId$ LBL"; |
| 34 |
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|
| 35 |
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#define FONTNAME "8x13" /* text font we'll use */ |
| 36 |
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|
| 37 |
< |
#define CTRL(c) ('c'-'@') |
| 37 |
> |
#define CTRL(c) ((c)-'@') |
| 38 |
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|
| 39 |
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#define BORWIDTH 5 /* border width */ |
| 40 |
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|
| 41 |
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#define ICONSIZ (8*10) /* maximum icon dimension (even 8) */ |
| 42 |
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|
| 43 |
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#define ourscreen DefaultScreen(thedisplay) |
| 44 |
– |
#define ourblack BlackPixel(thedisplay,ourscreen) |
| 45 |
– |
#define ourwhite WhitePixel(thedisplay,ourscreen) |
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#define ourroot RootWindow(thedisplay,ourscreen) |
| 47 |
– |
#define ourgc DefaultGC(thedisplay,ourscreen) |
| 45 |
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|
| 46 |
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#define revline(x0,y0,x1,y1) XDrawLine(thedisplay,wind,revgc,x0,y0,x1,y1) |
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|
| 52 |
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int dither = 1; /* dither colors? */ |
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int fast = 0; /* keep picture in Pixmap? */ |
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|
| 55 |
+ |
char *dispname = NULL; /* our display name */ |
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+ |
|
| 57 |
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Window wind = 0; /* our output window */ |
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+ |
unsigned long ourblack=0, ourwhite=1; /* black and white for this visual */ |
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Font fontid; /* our font */ |
| 60 |
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|
| 61 |
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int maxcolors = 0; /* maximum colors */ |
| 83 |
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|
| 84 |
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int wrongformat = 0; /* input in another format? */ |
| 85 |
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|
| 86 |
+ |
GC ourgc; /* standard graphics context */ |
| 87 |
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GC revgc; /* graphics context with GXinvert */ |
| 88 |
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|
| 89 |
< |
XRASTER *ourras; /* our stored image */ |
| 89 |
> |
int *ourrank; /* our visual class ranking */ |
| 90 |
> |
XVisualInfo ourvis; /* our visual */ |
| 91 |
> |
XRASTER *ourras; /* our stored image */ |
| 92 |
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unsigned char *ourdata; /* our image data */ |
| 93 |
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|
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struct { |
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|
| 109 |
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extern char *malloc(), *calloc(); |
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|
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< |
extern double atof(), pow(), log(); |
| 111 |
> |
extern double pow(), log(); |
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|
| 113 |
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Display *thedisplay; |
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|
| 134 |
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maxcolors = 2; |
| 135 |
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break; |
| 136 |
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case 'd': |
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< |
dither = !dither; |
| 137 |
> |
if (argv[i][2] == 'i') |
| 138 |
> |
dispname = argv[++i]; |
| 139 |
> |
else |
| 140 |
> |
dither = !dither; |
| 141 |
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break; |
| 142 |
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case 'f': |
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fast = !fast; |
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scale = atoi(argv[++i]); |
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break; |
| 150 |
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case 'g': |
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if (!strcmp(argv[i], "-geometry")) |
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> |
if (argv[i][2] == 'e') |
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geometry = argv[++i]; |
| 153 |
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else |
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gamcor = atof(argv[++i]); |
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fname = argv[i]; |
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fin = fopen(fname, "r"); |
| 167 |
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if (fin == NULL) { |
| 168 |
< |
sprintf(errmsg, "can't open file \"%s\"", fname); |
| 168 |
> |
sprintf(errmsg, "cannot open file \"%s\"", fname); |
| 169 |
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quiterr(errmsg); |
| 170 |
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} |
| 171 |
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} else if (i != argc) |
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getevent(); /* main loop */ |
| 190 |
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userr: |
| 191 |
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fprintf(stderr, |
| 192 |
< |
"Usage: %s [-geometry spec][-b][-m][-d][-f][-c ncolors][-e +/-stops] file\n", |
| 192 |
> |
"Usage: %s [-display disp][-geometry spec][-b][-m][-d][-f][-c ncolors][-e +/-stops] file\n", |
| 193 |
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progname); |
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quit(1); |
| 195 |
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} |
| 198 |
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headline(s) /* get relevant info from header */ |
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char *s; |
| 200 |
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{ |
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– |
static char *altname[] = {"rview","rpict","pinterp",VIEWSTR,NULL}; |
| 196 |
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register char **an; |
| 201 |
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char fmt[32]; |
| 202 |
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|
| 203 |
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if (isexpos(s)) |
| 205 |
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else if (isformat(s)) { |
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formatval(fmt, s); |
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wrongformat = strcmp(fmt, COLRFMT); |
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< |
} else |
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< |
for (an = altname; *an != NULL; an++) |
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< |
if (!strncmp(*an, s, strlen(*an))) { |
| 207 |
< |
if (sscanview(&ourview, s+strlen(*an)) > 0) |
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< |
gotview++; |
| 209 |
< |
return; |
| 210 |
< |
} |
| 208 |
> |
} else if (isview(s) && sscanview(&ourview, s) > 0) |
| 209 |
> |
gotview++; |
| 210 |
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} |
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|
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|
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{ |
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XWMHints ourxwmhints; |
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XSetWindowAttributes ourwinattr; |
| 217 |
< |
XSizeHints oursizhints; |
| 218 |
< |
register int i; |
| 217 |
> |
XSizeHints oursizhints; |
| 218 |
> |
register int i; |
| 219 |
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|
| 220 |
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if (fname != NULL) { |
| 221 |
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scanpos = (long *)malloc(ymax*sizeof(long)); |
| 224 |
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for (i = 0; i < ymax; i++) |
| 225 |
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scanpos[i] = -1; |
| 226 |
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} |
| 227 |
< |
if ((thedisplay = XOpenDisplay(NULL)) == NULL) |
| 228 |
< |
quiterr("can't open display; DISPLAY variable set?"); |
| 229 |
< |
if (maxcolors == 0) { /* get number of available colors */ |
| 230 |
< |
i = DisplayPlanes(thedisplay,ourscreen); |
| 232 |
< |
maxcolors = i > 8 ? 256 : 1<<i; |
| 233 |
< |
if (maxcolors > 4) maxcolors -= 2; |
| 234 |
< |
} |
| 227 |
> |
if ((thedisplay = XOpenDisplay(dispname)) == NULL) |
| 228 |
> |
quiterr("cannot open display"); |
| 229 |
> |
/* get best visual for default screen */ |
| 230 |
> |
getbestvis(); |
| 231 |
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/* store image */ |
| 232 |
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getras(); |
| 233 |
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/* open window */ |
| 234 |
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ourwinattr.border_pixel = ourblack; |
| 235 |
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ourwinattr.background_pixel = ourwhite; |
| 236 |
+ |
ourwinattr.colormap = XCreateColormap(thedisplay, ourroot, |
| 237 |
+ |
ourvis.visual, AllocNone); |
| 238 |
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wind = XCreateWindow(thedisplay, ourroot, 0, 0, xmax, ymax, BORWIDTH, |
| 239 |
< |
0, InputOutput, ourras->visual, |
| 240 |
< |
CWBackPixel|CWBorderPixel, &ourwinattr); |
| 239 |
> |
ourvis.depth, InputOutput, ourvis.visual, |
| 240 |
> |
CWBackPixel|CWBorderPixel|CWColormap, &ourwinattr); |
| 241 |
|
if (wind == 0) |
| 242 |
< |
quiterr("can't create window"); |
| 242 |
> |
quiterr("cannot create window"); |
| 243 |
> |
XFreeColormap(thedisplay, ourwinattr.colormap); |
| 244 |
|
width = xmax; |
| 245 |
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height = ymax; |
| 246 |
+ |
ourgc = XCreateGC(thedisplay, wind, 0, 0); |
| 247 |
+ |
XSetState(thedisplay, ourgc, ourblack, ourwhite, GXcopy, AllPlanes); |
| 248 |
+ |
revgc = XCreateGC(thedisplay, wind, 0, 0); |
| 249 |
+ |
XSetFunction(thedisplay, revgc, GXinvert); |
| 250 |
|
fontid = XLoadFont(thedisplay, FONTNAME); |
| 251 |
|
if (fontid == 0) |
| 252 |
< |
quiterr("can't get font"); |
| 252 |
> |
quiterr("cannot get font"); |
| 253 |
|
XSetFont(thedisplay, ourgc, fontid); |
| 251 |
– |
revgc = XCreateGC(thedisplay, wind, 0, 0); |
| 252 |
– |
XSetFunction(thedisplay, revgc, GXinvert); |
| 254 |
|
XDefineCursor(thedisplay, wind, XCreateFontCursor(thedisplay, |
| 255 |
|
XC_diamond_cross)); |
| 256 |
|
XStoreName(thedisplay, wind, fname == NULL ? progname : fname); |
| 317 |
|
} |
| 318 |
|
|
| 319 |
|
|
| 320 |
+ |
static int |
| 321 |
+ |
viscmp(v1,v2) /* compare visual to see which is better, descending */ |
| 322 |
+ |
register XVisualInfo *v1, *v2; |
| 323 |
+ |
{ |
| 324 |
+ |
int bad1 = 0, bad2 = 0; |
| 325 |
+ |
register int *rp; |
| 326 |
+ |
|
| 327 |
+ |
if (v1->class == v2->class) { |
| 328 |
+ |
if (v1->class == TrueColor || v1->class == DirectColor) { |
| 329 |
+ |
/* prefer 24-bit to 32-bit */ |
| 330 |
+ |
if (v1->depth == 24 && v2->depth == 32) |
| 331 |
+ |
return(-1); |
| 332 |
+ |
if (v1->depth == 32 && v2->depth == 24) |
| 333 |
+ |
return(1); |
| 334 |
+ |
return(0); |
| 335 |
+ |
} |
| 336 |
+ |
/* don't be too greedy */ |
| 337 |
+ |
if (maxcolors <= 1<<v1->depth && maxcolors <= 1<<v2->depth) |
| 338 |
+ |
return(v1->depth - v2->depth); |
| 339 |
+ |
return(v2->depth - v1->depth); |
| 340 |
+ |
} |
| 341 |
+ |
/* prefer Pseudo when < 24-bit */ |
| 342 |
+ |
if ((v1->class == TrueColor || v1->class == DirectColor) && |
| 343 |
+ |
v1->depth < 24) |
| 344 |
+ |
bad1 = 1; |
| 345 |
+ |
if ((v2->class == TrueColor || v2->class == DirectColor) && |
| 346 |
+ |
v2->depth < 24) |
| 347 |
+ |
bad2 = -1; |
| 348 |
+ |
if (bad1 | bad2) |
| 349 |
+ |
return(bad1+bad2); |
| 350 |
+ |
/* otherwise, use class ranking */ |
| 351 |
+ |
for (rp = ourrank; *rp != -1; rp++) { |
| 352 |
+ |
if (v1->class == *rp) |
| 353 |
+ |
return(-1); |
| 354 |
+ |
if (v2->class == *rp) |
| 355 |
+ |
return(1); |
| 356 |
+ |
} |
| 357 |
+ |
return(0); |
| 358 |
+ |
} |
| 359 |
+ |
|
| 360 |
+ |
|
| 361 |
+ |
getbestvis() /* get the best visual for this screen */ |
| 362 |
+ |
{ |
| 363 |
+ |
#ifdef DEBUG |
| 364 |
+ |
static char vistype[][12] = { |
| 365 |
+ |
"StaticGray", |
| 366 |
+ |
"GrayScale", |
| 367 |
+ |
"StaticColor", |
| 368 |
+ |
"PseudoColor", |
| 369 |
+ |
"TrueColor", |
| 370 |
+ |
"DirectColor" |
| 371 |
+ |
}; |
| 372 |
+ |
#endif |
| 373 |
+ |
static int rankings[3][6] = { |
| 374 |
+ |
{TrueColor,DirectColor,PseudoColor,GrayScale,StaticGray,-1}, |
| 375 |
+ |
{PseudoColor,GrayScale,StaticGray,-1}, |
| 376 |
+ |
{PseudoColor,GrayScale,StaticGray,-1} |
| 377 |
+ |
}; |
| 378 |
+ |
XVisualInfo *xvi; |
| 379 |
+ |
int vismatched; |
| 380 |
+ |
register int i, j; |
| 381 |
+ |
|
| 382 |
+ |
if (greyscale) { |
| 383 |
+ |
ourrank = rankings[2]; |
| 384 |
+ |
if (maxcolors < 2) maxcolors = 256; |
| 385 |
+ |
} else if (maxcolors >= 2 && maxcolors <= 256) |
| 386 |
+ |
ourrank = rankings[1]; |
| 387 |
+ |
else { |
| 388 |
+ |
ourrank = rankings[0]; |
| 389 |
+ |
maxcolors = 256; |
| 390 |
+ |
} |
| 391 |
+ |
/* find best visual */ |
| 392 |
+ |
ourvis.screen = ourscreen; |
| 393 |
+ |
xvi = XGetVisualInfo(thedisplay,VisualScreenMask,&ourvis,&vismatched); |
| 394 |
+ |
if (xvi == NULL) |
| 395 |
+ |
quiterr("no visuals for this screen!"); |
| 396 |
+ |
#ifdef DEBUG |
| 397 |
+ |
fprintf(stderr, "Supported visuals:\n"); |
| 398 |
+ |
for (i = 0; i < vismatched; i++) |
| 399 |
+ |
fprintf(stderr, "\ttype %s, depth %d\n", |
| 400 |
+ |
vistype[xvi[i].class], xvi[i].depth); |
| 401 |
+ |
#endif |
| 402 |
+ |
for (i = 0, j = 1; j < vismatched; j++) |
| 403 |
+ |
if (viscmp(&xvi[i],&xvi[j]) > 0) |
| 404 |
+ |
i = j; |
| 405 |
+ |
/* compare to least acceptable */ |
| 406 |
+ |
for (j = 0; ourrank[j++] != -1; ) |
| 407 |
+ |
; |
| 408 |
+ |
ourvis.class = ourrank[--j]; |
| 409 |
+ |
ourvis.depth = 1; |
| 410 |
+ |
if (viscmp(&xvi[i],&ourvis) > 0) |
| 411 |
+ |
quiterr("inadequate visuals on this screen"); |
| 412 |
+ |
/* OK, we'll use it */ |
| 413 |
+ |
copystruct(&ourvis, &xvi[i]); |
| 414 |
+ |
#ifdef DEBUG |
| 415 |
+ |
fprintf(stderr, "Selected visual type %s, depth %d\n", |
| 416 |
+ |
vistype[ourvis.class], ourvis.depth); |
| 417 |
+ |
#endif |
| 418 |
+ |
/* make appropriate adjustments */ |
| 419 |
+ |
if (ourvis.class == GrayScale || ourvis.class == StaticGray) |
| 420 |
+ |
greyscale = 1; |
| 421 |
+ |
if (ourvis.depth <= 8 && ourvis.colormap_size < maxcolors) |
| 422 |
+ |
maxcolors = ourvis.colormap_size; |
| 423 |
+ |
if (maxcolors > 4) |
| 424 |
+ |
maxcolors -= 2; |
| 425 |
+ |
if (ourvis.class == StaticGray) { |
| 426 |
+ |
ourblack = 0; |
| 427 |
+ |
ourwhite = 255; |
| 428 |
+ |
} else if (ourvis.class == PseudoColor) { |
| 429 |
+ |
ourblack = BlackPixel(thedisplay,ourscreen); |
| 430 |
+ |
ourwhite = WhitePixel(thedisplay,ourscreen); |
| 431 |
+ |
if ((ourblack|ourwhite) & ~255L) { |
| 432 |
+ |
ourblack = 0; |
| 433 |
+ |
ourwhite = 1; |
| 434 |
+ |
} |
| 435 |
+ |
} else { |
| 436 |
+ |
ourblack = 0; |
| 437 |
+ |
ourwhite = ourvis.red_mask|ourvis.green_mask|ourvis.blue_mask; |
| 438 |
+ |
} |
| 439 |
+ |
XFree((char *)xvi); |
| 440 |
+ |
} |
| 441 |
+ |
|
| 442 |
+ |
|
| 443 |
|
getras() /* get raster file */ |
| 444 |
|
{ |
| 445 |
|
colormap ourmap; |
| 449 |
|
ourdata = (unsigned char *)malloc(ymax*((xmax+7)/8)); |
| 450 |
|
if (ourdata == NULL) |
| 451 |
|
goto fail; |
| 452 |
< |
ourras = make_raster(thedisplay, ourscreen, 1, ourdata, |
| 452 |
> |
ourras = make_raster(thedisplay, &ourvis, 1, ourdata, |
| 453 |
|
xmax, ymax, 8); |
| 454 |
|
if (ourras == NULL) |
| 455 |
|
goto fail; |
| 456 |
|
getmono(); |
| 457 |
< |
} else if (XMatchVisualInfo(thedisplay,ourscreen,24,TrueColor,&vinfo) |
| 458 |
< |
/* kludge for DirectColor */ |
| 335 |
< |
|| XMatchVisualInfo(thedisplay,ourscreen,24,DirectColor,&vinfo)) { |
| 336 |
< |
ourdata = (unsigned char *)malloc(xmax*ymax*3); |
| 457 |
> |
} else if (ourvis.class == TrueColor || ourvis.class == DirectColor) { |
| 458 |
> |
ourdata = (unsigned char *)malloc(4*xmax*ymax); |
| 459 |
|
if (ourdata == NULL) |
| 460 |
|
goto fail; |
| 461 |
< |
ourras = make_raster(thedisplay, ourscreen, 24, ourdata, |
| 462 |
< |
xmax, ymax, 8); |
| 461 |
> |
ourras = make_raster(thedisplay, &ourvis, 32, |
| 462 |
> |
ourdata, xmax, ymax, 32); |
| 463 |
|
if (ourras == NULL) |
| 464 |
|
goto fail; |
| 465 |
|
getfull(); |
| 467 |
|
ourdata = (unsigned char *)malloc(xmax*ymax); |
| 468 |
|
if (ourdata == NULL) |
| 469 |
|
goto fail; |
| 470 |
< |
ourras = make_raster(thedisplay, ourscreen, 8, ourdata, |
| 470 |
> |
ourras = make_raster(thedisplay, &ourvis, 8, ourdata, |
| 471 |
|
xmax, ymax, 8); |
| 472 |
|
if (ourras == NULL) |
| 473 |
|
goto fail; |
| 474 |
< |
if (greyscale) |
| 475 |
< |
biq(dither,maxcolors,1,ourmap); |
| 476 |
< |
else |
| 477 |
< |
ciq(dither,maxcolors,1,ourmap); |
| 478 |
< |
if (init_rcolors(ourras, ourmap[0], ourmap[1], ourmap[2]) == 0) |
| 479 |
< |
goto fail; |
| 474 |
> |
if (ourvis.class == StaticGray) |
| 475 |
> |
getgrey(); |
| 476 |
> |
else { |
| 477 |
> |
if (greyscale) |
| 478 |
> |
biq(dither,maxcolors,1,ourmap); |
| 479 |
> |
else |
| 480 |
> |
ciq(dither,maxcolors,1,ourmap); |
| 481 |
> |
if (init_rcolors(ourras, ourmap[0], |
| 482 |
> |
ourmap[1], ourmap[2]) == 0) |
| 483 |
> |
goto fail; |
| 484 |
> |
} |
| 485 |
|
} |
| 486 |
< |
return; |
| 486 |
> |
return; |
| 487 |
|
fail: |
| 488 |
|
quiterr("could not create raster image"); |
| 489 |
|
} |
| 511 |
|
case MapNotify: |
| 512 |
|
map_rcolors(ourras, wind); |
| 513 |
|
if (fast) |
| 514 |
< |
make_rpixmap(ourras); |
| 514 |
> |
make_rpixmap(ourras, wind); |
| 515 |
|
break; |
| 516 |
|
case UnmapNotify: |
| 517 |
< |
unmap_rcolors(ourras); |
| 517 |
> |
if (!fast) |
| 518 |
> |
unmap_rcolors(ourras); |
| 519 |
|
break; |
| 520 |
|
case Expose: |
| 521 |
|
redraw(e.e.x, e.e.y, e.e.width, e.e.height); |
| 547 |
|
com = buf[0]; |
| 548 |
|
switch (com) { /* interpret command */ |
| 549 |
|
case 'q': |
| 550 |
< |
case CTRL(D): /* quit */ |
| 550 |
> |
case CTRL('D'): /* quit */ |
| 551 |
|
quit(0); |
| 552 |
|
case '\n': |
| 553 |
|
case '\r': |
| 621 |
|
free_raster(ourras); |
| 622 |
|
getras(); |
| 623 |
|
/* fall through */ |
| 624 |
< |
case CTRL(R): /* redraw */ |
| 625 |
< |
case CTRL(L): |
| 624 |
> |
case CTRL('R'): /* redraw */ |
| 625 |
> |
case CTRL('L'): |
| 626 |
|
unmap_rcolors(ourras); |
| 627 |
|
XClearWindow(thedisplay, wind); |
| 628 |
|
map_rcolors(ourras, wind); |
| 844 |
|
getfull() /* get full (24-bit) data */ |
| 845 |
|
{ |
| 846 |
|
int y; |
| 847 |
+ |
register unsigned long *dp; |
| 848 |
+ |
register int x; |
| 849 |
+ |
/* set gamma correction */ |
| 850 |
+ |
setcolrgam(gamcor); |
| 851 |
+ |
/* read and convert file */ |
| 852 |
+ |
dp = (unsigned long *)ourdata; |
| 853 |
+ |
for (y = 0; y < ymax; y++) { |
| 854 |
+ |
if (getscan(y) < 0) |
| 855 |
+ |
quiterr("seek error in getfull"); |
| 856 |
+ |
if (scale) |
| 857 |
+ |
shiftcolrs(scanline, xmax, scale); |
| 858 |
+ |
colrs_gambs(scanline, xmax); |
| 859 |
+ |
add2icon(y, scanline); |
| 860 |
+ |
if (ourras->image->blue_mask & 1) |
| 861 |
+ |
for (x = 0; x < xmax; x++) |
| 862 |
+ |
*dp++ = scanline[x][RED] << 16 | |
| 863 |
+ |
scanline[x][GRN] << 8 | |
| 864 |
+ |
scanline[x][BLU] ; |
| 865 |
+ |
else |
| 866 |
+ |
for (x = 0; x < xmax; x++) |
| 867 |
+ |
*dp++ = scanline[x][RED] | |
| 868 |
+ |
scanline[x][GRN] << 8 | |
| 869 |
+ |
scanline[x][BLU] << 16 ; |
| 870 |
+ |
} |
| 871 |
+ |
} |
| 872 |
+ |
|
| 873 |
+ |
|
| 874 |
+ |
getgrey() /* get greyscale data */ |
| 875 |
+ |
{ |
| 876 |
+ |
int y; |
| 877 |
|
register unsigned char *dp; |
| 878 |
|
register int x; |
| 879 |
|
/* set gamma correction */ |
| 887 |
|
shiftcolrs(scanline, xmax, scale); |
| 888 |
|
colrs_gambs(scanline, xmax); |
| 889 |
|
add2icon(y, scanline); |
| 890 |
< |
for (x = 0; x < xmax; x++) { |
| 891 |
< |
*dp++ = scanline[x][RED]; |
| 892 |
< |
*dp++ = scanline[x][GRN]; |
| 893 |
< |
*dp++ = scanline[x][BLU]; |
| 894 |
< |
} |
| 890 |
> |
if (ourvis.colormap_size < 256) |
| 891 |
> |
for (x = 0; x < xmax; x++) |
| 892 |
> |
*dp++ = ((long)normbright(scanline[x]) * |
| 893 |
> |
ourvis.colormap_size + 128) >> 8; |
| 894 |
> |
else |
| 895 |
> |
for (x = 0; x < xmax; x++) |
| 896 |
> |
*dp++ = normbright(scanline[x]); |
| 897 |
|
} |
| 898 |
|
} |
| 899 |
|
|
| 989 |
|
picwritecm(map) /* handled elsewhere */ |
| 990 |
|
colormap map; |
| 991 |
|
{ |
| 992 |
< |
#ifdef DEBUG |
| 992 |
> |
#if 0 |
| 993 |
|
register int i; |
| 994 |
|
|
| 995 |
|
for (i = 0; i < 256; i++) |