| 1 | < | /* Copyright (c) 1990 Regents of the University of California */ | 
| 1 | > | /* Copyright (c) 1993 Regents of the University of California */ | 
| 2 |  |  | 
| 3 |  | #ifndef lint | 
| 4 |  | static char SCCSid[] = "$SunId$ LBL"; | 
| 24 |  | #include  <X11/Xlib.h> | 
| 25 |  | #include  <X11/cursorfont.h> | 
| 26 |  | #include  <X11/Xutil.h> | 
| 27 | + | #include  <X11/Xatom.h> | 
| 28 |  |  | 
| 29 |  | #include  "color.h" | 
| 30 |  | #include  "view.h" | 
| 30 | – | #include  "pic.h" | 
| 31 |  | #include  "x11raster.h" | 
| 32 |  | #include  "random.h" | 
| 33 | + | #include  "resolu.h" | 
| 34 |  |  | 
| 35 | + | #ifdef  __alpha | 
| 36 | + | #define  int4           int | 
| 37 | + | #endif | 
| 38 | + | #ifndef  int4 | 
| 39 | + | #define  int4           long | 
| 40 | + | #endif | 
| 41 | + |  | 
| 42 |  | #define  FONTNAME       "8x13"          /* text font we'll use */ | 
| 43 |  |  | 
| 44 | < | #define  CTRL(c)        ('c'-'@') | 
| 44 | > | #define  CTRL(c)        ((c)-'@') | 
| 45 |  |  | 
| 46 |  | #define  BORWIDTH       5               /* border width */ | 
| 47 |  |  | 
| 48 | + | #define  ICONSIZ        (8*10)          /* maximum icon dimension (even 8) */ | 
| 49 | + |  | 
| 50 |  | #define  ourscreen      DefaultScreen(thedisplay) | 
| 41 | – | #define  ourblack       BlackPixel(thedisplay,ourscreen) | 
| 42 | – | #define  ourwhite       WhitePixel(thedisplay,ourscreen) | 
| 51 |  | #define  ourroot        RootWindow(thedisplay,ourscreen) | 
| 44 | – | #define  ourgc          DefaultGC(thedisplay,ourscreen) | 
| 52 |  |  | 
| 53 |  | #define  revline(x0,y0,x1,y1)   XDrawLine(thedisplay,wind,revgc,x0,y0,x1,y1) | 
| 54 |  |  | 
| 59 |  | int  dither = 1;                        /* dither colors? */ | 
| 60 |  | int  fast = 0;                          /* keep picture in Pixmap? */ | 
| 61 |  |  | 
| 62 | < | Window  wind = 0;                       /* our output window */ | 
| 56 | < | Font  fontid;                           /* our font */ | 
| 62 | > | char    *dispname = NULL;               /* our display name */ | 
| 63 |  |  | 
| 64 | + | Window  wind = 0;                       /* our output window */ | 
| 65 | + | unsigned long  ourblack=0, ourwhite=1;  /* black and white for this visual */ | 
| 66 |  | int  maxcolors = 0;                     /* maximum colors */ | 
| 67 |  | int  greyscale = 0;                     /* in grey */ | 
| 68 |  |  | 
| 76 |  |  | 
| 77 |  | COLR  *scanline;                        /* scan line buffer */ | 
| 78 |  |  | 
| 79 | < | int  xmax, ymax;                        /* picture resolution */ | 
| 79 | > | RESOLU  inpres;                         /* input resolution and ordering */ | 
| 80 | > | int  xmax, ymax;                        /* picture dimensions */ | 
| 81 |  | int  width, height;                     /* window size */ | 
| 82 |  | char  *fname = NULL;                    /* input file name */ | 
| 83 |  | FILE  *fin = stdin;                     /* input file */ | 
| 86 |  |  | 
| 87 |  | double  exposure = 1.0;                 /* exposure compensation used */ | 
| 88 |  |  | 
| 89 | + | int  wrongformat = 0;                   /* input in another format? */ | 
| 90 | + |  | 
| 91 | + | GC      ourgc;                          /* standard graphics context */ | 
| 92 |  | GC      revgc;                          /* graphics context with GXinvert */ | 
| 93 |  |  | 
| 94 | < | XRASTER *ourras;                        /* our stored image */ | 
| 94 | > | int             *ourrank;               /* our visual class ranking */ | 
| 95 | > | XVisualInfo     ourvis;                 /* our visual */ | 
| 96 | > | XRASTER         *ourras;                /* our stored image */ | 
| 97 |  | unsigned char   *ourdata;               /* our image data */ | 
| 98 |  |  | 
| 99 |  | struct { | 
| 102 |  |  | 
| 103 |  | char  *geometry = NULL;                 /* geometry specification */ | 
| 104 |  |  | 
| 105 | + | char  icondata[ICONSIZ*ICONSIZ/8];      /* icon bitmap data */ | 
| 106 | + | int  iconwidth = 0, iconheight = 0; | 
| 107 | + |  | 
| 108 |  | char  *progname; | 
| 109 |  |  | 
| 110 |  | char  errmsg[128]; | 
| 111 |  |  | 
| 112 | + | extern BYTE  clrtab[256][3];            /* global color map */ | 
| 113 | + |  | 
| 114 |  | extern long  ftell(); | 
| 115 |  |  | 
| 97 | – | extern char  *malloc(), *calloc(); | 
| 98 | – |  | 
| 99 | – | extern double  atof(), pow(), log(); | 
| 100 | – |  | 
| 116 |  | Display  *thedisplay; | 
| 117 | + | Atom  closedownAtom, wmProtocolsAtom; | 
| 118 |  |  | 
| 119 | + |  | 
| 120 |  | main(argc, argv) | 
| 121 |  | int  argc; | 
| 122 |  | char  *argv[]; | 
| 123 |  | { | 
| 124 | + | extern char  *getenv(); | 
| 125 | + | char  *gv; | 
| 126 |  | int  headline(); | 
| 127 |  | int  i; | 
| 128 |  |  | 
| 129 |  | progname = argv[0]; | 
| 130 | + | if ((gv = getenv("GAMMA")) != NULL) | 
| 131 | + | gamcor = atof(gv); | 
| 132 |  |  | 
| 133 |  | for (i = 1; i < argc; i++) | 
| 134 |  | if (argv[i][0] == '-') | 
| 143 |  | maxcolors = 2; | 
| 144 |  | break; | 
| 145 |  | case 'd': | 
| 146 | < | dither = !dither; | 
| 146 | > | if (argv[i][2] == 'i') | 
| 147 | > | dispname = argv[++i]; | 
| 148 | > | else | 
| 149 | > | dither = !dither; | 
| 150 |  | break; | 
| 151 |  | case 'f': | 
| 152 |  | fast = !fast; | 
| 157 |  | scale = atoi(argv[++i]); | 
| 158 |  | break; | 
| 159 |  | case 'g': | 
| 160 | < | if (!strcmp(argv[i], "-geometry")) | 
| 160 | > | if (argv[i][2] == 'e') | 
| 161 |  | geometry = argv[++i]; | 
| 162 |  | else | 
| 163 |  | gamcor = atof(argv[++i]); | 
| 174 |  | fname = argv[i]; | 
| 175 |  | fin = fopen(fname, "r"); | 
| 176 |  | if (fin == NULL) { | 
| 177 | < | sprintf(errmsg, "can't open file \"%s\"", fname); | 
| 177 | > | sprintf(errmsg, "cannot open file \"%s\"", fname); | 
| 178 |  | quiterr(errmsg); | 
| 179 |  | } | 
| 180 |  | } else if (i != argc) | 
| 181 |  | goto userr; | 
| 182 |  | /* get header */ | 
| 183 | < | getheader(fin, headline); | 
| 183 | > | getheader(fin, headline, NULL); | 
| 184 |  | /* get picture dimensions */ | 
| 185 | < | if (fgetresolu(&xmax, &ymax, fin) != (YMAJOR|YDECR)) | 
| 186 | < | quiterr("bad picture size"); | 
| 185 | > | if (wrongformat || !fgetsresolu(&inpres, fin)) | 
| 186 | > | quiterr("bad picture format"); | 
| 187 | > | xmax = scanlen(&inpres); | 
| 188 | > | ymax = numscans(&inpres); | 
| 189 |  | /* set view parameters */ | 
| 190 |  | if (gotview && setview(&ourview) != NULL) | 
| 191 |  | gotview = 0; | 
| 192 |  | if ((scanline = (COLR *)malloc(xmax*sizeof(COLR))) == NULL) | 
| 193 |  | quiterr("out of memory"); | 
| 194 |  |  | 
| 195 | < | init();                 /* get file and open window */ | 
| 195 | > | init(argc, argv);                       /* get file and open window */ | 
| 196 |  |  | 
| 197 |  | for ( ; ; ) | 
| 198 |  | getevent();             /* main loop */ | 
| 199 |  | userr: | 
| 200 |  | fprintf(stderr, | 
| 201 | < | "Usage: %s [-geometry spec][-b][-m][-d][-f][-c ncolors][-e +/-stops] file\n", | 
| 201 | > | "Usage: %s [-di disp][[-ge] spec][-b][-m][-d][-f][-c nclrs][-e +/-stops] pic\n", | 
| 202 |  | progname); | 
| 203 | < | quit(1); | 
| 203 | > | exit(1); | 
| 204 |  | } | 
| 205 |  |  | 
| 206 |  |  | 
| 207 |  | headline(s)             /* get relevant info from header */ | 
| 208 |  | char  *s; | 
| 209 |  | { | 
| 210 | < | static char  *altname[] = {"rview","rpict","pinterp",VIEWSTR,NULL}; | 
| 185 | < | register char  **an; | 
| 210 | > | char  fmt[32]; | 
| 211 |  |  | 
| 212 |  | if (isexpos(s)) | 
| 213 |  | exposure *= exposval(s); | 
| 214 | < | else | 
| 215 | < | for (an = altname; *an != NULL; an++) | 
| 216 | < | if (!strncmp(*an, s, strlen(*an))) { | 
| 217 | < | if (sscanview(&ourview, s+strlen(*an)) > 0) | 
| 218 | < | gotview++; | 
| 194 | < | return; | 
| 195 | < | } | 
| 214 | > | else if (isformat(s)) { | 
| 215 | > | formatval(fmt, s); | 
| 216 | > | wrongformat = strcmp(fmt, COLRFMT); | 
| 217 | > | } else if (isview(s) && sscanview(&ourview, s) > 0) | 
| 218 | > | gotview++; | 
| 219 |  | } | 
| 220 |  |  | 
| 221 |  |  | 
| 222 | < | init()                  /* get data and open window */ | 
| 222 | > | init(argc, argv)                        /* get data and open window */ | 
| 223 | > | int argc; | 
| 224 | > | char **argv; | 
| 225 |  | { | 
| 226 |  | XSetWindowAttributes    ourwinattr; | 
| 227 | < | XSizeHints  oursizhints; | 
| 228 | < | register int  i; | 
| 227 | > | XClassHint      xclshints; | 
| 228 | > | XWMHints        xwmhints; | 
| 229 | > | XSizeHints      xszhints; | 
| 230 | > | XTextProperty   windowName, iconName; | 
| 231 | > | XGCValues       xgcv; | 
| 232 | > | char    *name; | 
| 233 | > | register int    i; | 
| 234 |  |  | 
| 235 |  | if (fname != NULL) { | 
| 236 |  | scanpos = (long *)malloc(ymax*sizeof(long)); | 
| 237 |  | if (scanpos == NULL) | 
| 238 | < | goto memerr; | 
| 238 | > | quiterr("out of memory"); | 
| 239 |  | for (i = 0; i < ymax; i++) | 
| 240 |  | scanpos[i] = -1; | 
| 241 | < | } | 
| 242 | < | if ((thedisplay = XOpenDisplay(NULL)) == NULL) | 
| 243 | < | quiterr("can't open display; DISPLAY variable set?"); | 
| 244 | < | if (maxcolors == 0) {           /* get number of available colors */ | 
| 245 | < | i = DisplayPlanes(thedisplay,ourscreen); | 
| 246 | < | maxcolors = i > 8 ? 256 : 1<<i; | 
| 247 | < | if (maxcolors > 4) maxcolors -= 2; | 
| 248 | < | } | 
| 241 | > | name = fname; | 
| 242 | > | } else | 
| 243 | > | name = progname; | 
| 244 | > | /* remove directory prefix from name */ | 
| 245 | > | for (i = strlen(name); i-- > 0; ) | 
| 246 | > | if (name[i] == '/') | 
| 247 | > | break; | 
| 248 | > | name += i+1; | 
| 249 | > | if ((thedisplay = XOpenDisplay(dispname)) == NULL) | 
| 250 | > | quiterr("cannot open display"); | 
| 251 | > | /* get best visual for default screen */ | 
| 252 | > | getbestvis(); | 
| 253 |  | /* store image */ | 
| 254 |  | getras(); | 
| 255 | < | /* open window */ | 
| 256 | < | ourwinattr.border_pixel = ourblack; | 
| 257 | < | ourwinattr.background_pixel = ourwhite; | 
| 224 | < | wind = XCreateWindow(thedisplay, ourroot, 0, 0, xmax, ymax, BORWIDTH, | 
| 225 | < | 0, InputOutput, ourras->visual, | 
| 226 | < | CWBackPixel|CWBorderPixel, &ourwinattr); | 
| 227 | < | if (wind == 0) | 
| 228 | < | quiterr("can't create window"); | 
| 229 | < | width = xmax; | 
| 230 | < | height = ymax; | 
| 231 | < | fontid = XLoadFont(thedisplay, FONTNAME); | 
| 232 | < | if (fontid == 0) | 
| 233 | < | quiterr("can't get font"); | 
| 234 | < | XSetFont(thedisplay, ourgc, fontid); | 
| 235 | < | revgc = XCreateGC(thedisplay, wind, 0, 0); | 
| 236 | < | XSetFunction(thedisplay, revgc, GXinvert); | 
| 237 | < | XStoreName(thedisplay, wind, fname == NULL ? progname : fname); | 
| 238 | < | XDefineCursor(thedisplay, wind, XCreateFontCursor(thedisplay, | 
| 239 | < | XC_diamond_cross)); | 
| 255 | > | /* get size and position */ | 
| 256 | > | xszhints.flags = 0; | 
| 257 | > | xszhints.width = xmax; xszhints.height = ymax; | 
| 258 |  | if (geometry != NULL) { | 
| 259 | < | bzero((char *)&oursizhints, sizeof(oursizhints)); | 
| 260 | < | i = XParseGeometry(geometry, &oursizhints.x, &oursizhints.y, | 
| 261 | < | &oursizhints.width, &oursizhints.height); | 
| 259 | > | i = XParseGeometry(geometry, &xszhints.x, &xszhints.y, | 
| 260 | > | (unsigned *)&xszhints.width, | 
| 261 | > | (unsigned *)&xszhints.height); | 
| 262 |  | if ((i&(WidthValue|HeightValue)) == (WidthValue|HeightValue)) | 
| 263 | < | oursizhints.flags |= USSize; | 
| 264 | < | else { | 
| 265 | < | oursizhints.width = xmax; | 
| 248 | < | oursizhints.height = ymax; | 
| 249 | < | oursizhints.flags |= PSize; | 
| 250 | < | } | 
| 263 | > | xszhints.flags |= USSize; | 
| 264 | > | else | 
| 265 | > | xszhints.flags |= PSize; | 
| 266 |  | if ((i&(XValue|YValue)) == (XValue|YValue)) { | 
| 267 | < | oursizhints.flags |= USPosition; | 
| 267 | > | xszhints.flags |= USPosition; | 
| 268 |  | if (i & XNegative) | 
| 269 | < | oursizhints.x += DisplayWidth(thedisplay, | 
| 270 | < | ourscreen)-1-oursizhints.width-2*BORWIDTH; | 
| 269 | > | xszhints.x += DisplayWidth(thedisplay, | 
| 270 | > | ourscreen)-1-xszhints.width-2*BORWIDTH; | 
| 271 |  | if (i & YNegative) | 
| 272 | < | oursizhints.y += DisplayHeight(thedisplay, | 
| 273 | < | ourscreen)-1-oursizhints.height-2*BORWIDTH; | 
| 272 | > | xszhints.y += DisplayHeight(thedisplay, | 
| 273 | > | ourscreen)-1-xszhints.height-2*BORWIDTH; | 
| 274 |  | } | 
| 260 | – | XSetNormalHints(thedisplay, wind, &oursizhints); | 
| 275 |  | } | 
| 276 | < | XSelectInput(thedisplay, wind, ButtonPressMask|ButtonReleaseMask | 
| 277 | < | |ButtonMotionMask|StructureNotifyMask | 
| 278 | < | |KeyPressMask|ExposureMask); | 
| 276 | > | /* open window */ | 
| 277 | > | ourwinattr.border_pixel = ourwhite; | 
| 278 | > | ourwinattr.background_pixel = ourblack; | 
| 279 | > | ourwinattr.colormap = XCreateColormap(thedisplay, ourroot, | 
| 280 | > | ourvis.visual, AllocNone); | 
| 281 | > | ourwinattr.event_mask = ExposureMask|KeyPressMask|ButtonPressMask| | 
| 282 | > | ButtonReleaseMask|ButtonMotionMask|StructureNotifyMask; | 
| 283 | > | ourwinattr.cursor = XCreateFontCursor(thedisplay, XC_diamond_cross); | 
| 284 | > | wind = XCreateWindow(thedisplay, ourroot, xszhints.x, xszhints.y, | 
| 285 | > | xszhints.width, xszhints.height, BORWIDTH, | 
| 286 | > | ourvis.depth, InputOutput, ourvis.visual, CWEventMask| | 
| 287 | > | CWCursor|CWBackPixel|CWBorderPixel|CWColormap, &ourwinattr); | 
| 288 | > | if (wind == 0) | 
| 289 | > | quiterr("cannot create window"); | 
| 290 | > | width = xmax; | 
| 291 | > | height = ymax; | 
| 292 | > | xgcv.foreground = ourblack; | 
| 293 | > | xgcv.background = ourwhite; | 
| 294 | > | if ((xgcv.font = XLoadFont(thedisplay, FONTNAME)) == 0) | 
| 295 | > | quiterr("cannot get font"); | 
| 296 | > | ourgc = XCreateGC(thedisplay, wind, GCForeground|GCBackground| | 
| 297 | > | GCFont, &xgcv); | 
| 298 | > | xgcv.function = GXinvert; | 
| 299 | > | revgc = XCreateGC(thedisplay, wind, GCForeground|GCBackground| | 
| 300 | > | GCFunction, &xgcv); | 
| 301 | > |  | 
| 302 | > | /* set up the window manager */ | 
| 303 | > | xwmhints.flags = InputHint|IconPixmapHint; | 
| 304 | > | xwmhints.input = True; | 
| 305 | > | xwmhints.icon_pixmap = XCreateBitmapFromData(thedisplay, | 
| 306 | > | wind, icondata, iconwidth, iconheight); | 
| 307 | > |  | 
| 308 | > | windowName.encoding = iconName.encoding = XA_STRING; | 
| 309 | > | windowName.format = iconName.format = 8; | 
| 310 | > | windowName.value = (u_char *)name; | 
| 311 | > | windowName.nitems = strlen(windowName.value); | 
| 312 | > | iconName.value = (u_char *)name; | 
| 313 | > | iconName.nitems = strlen(windowName.value); | 
| 314 | > |  | 
| 315 | > | xclshints.res_name = NULL; | 
| 316 | > | xclshints.res_class = "Ximage"; | 
| 317 | > | XSetWMProperties(thedisplay, wind, &windowName, &iconName, | 
| 318 | > | argv, argc, &xszhints, &xwmhints, &xclshints); | 
| 319 | > | closedownAtom = XInternAtom(thedisplay, "WM_DELETE_WINDOW", False); | 
| 320 | > | wmProtocolsAtom = XInternAtom(thedisplay, "WM_PROTOCOLS", False); | 
| 321 | > | XSetWMProtocols(thedisplay, wind, &closedownAtom, 1); | 
| 322 | > |  | 
| 323 |  | XMapWindow(thedisplay, wind); | 
| 324 |  | return; | 
| 267 | – | memerr: | 
| 268 | – | quiterr("out of memory"); | 
| 325 |  | } /* end of init */ | 
| 326 |  |  | 
| 327 |  |  | 
| 336 |  | } | 
| 337 |  |  | 
| 338 |  |  | 
| 339 | < | eputs(s) | 
| 340 | < | char    *s; | 
| 339 | > | static int | 
| 340 | > | viscmp(v1,v2)           /* compare visual to see which is better, descending */ | 
| 341 | > | register XVisualInfo    *v1, *v2; | 
| 342 |  | { | 
| 343 | < | fputs(s, stderr); | 
| 343 | > | int     bad1 = 0, bad2 = 0; | 
| 344 | > | register int  *rp; | 
| 345 | > |  | 
| 346 | > | if (v1->class == v2->class) { | 
| 347 | > | if (v1->class == TrueColor || v1->class == DirectColor) { | 
| 348 | > | /* prefer 24-bit to 32-bit */ | 
| 349 | > | if (v1->depth == 24 && v2->depth == 32) | 
| 350 | > | return(-1); | 
| 351 | > | if (v1->depth == 32 && v2->depth == 24) | 
| 352 | > | return(1); | 
| 353 | > | return(0); | 
| 354 | > | } | 
| 355 | > | /* don't be too greedy */ | 
| 356 | > | if (maxcolors <= 1<<v1->depth && maxcolors <= 1<<v2->depth) | 
| 357 | > | return(v1->depth - v2->depth); | 
| 358 | > | return(v2->depth - v1->depth); | 
| 359 | > | } | 
| 360 | > | /* prefer Pseudo when < 24-bit */ | 
| 361 | > | if ((v1->class == TrueColor || v1->class == DirectColor) && | 
| 362 | > | v1->depth < 24) | 
| 363 | > | bad1 = 1; | 
| 364 | > | if ((v2->class == TrueColor || v2->class == DirectColor) && | 
| 365 | > | v2->depth < 24) | 
| 366 | > | bad2 = -1; | 
| 367 | > | if (bad1 | bad2) | 
| 368 | > | return(bad1+bad2); | 
| 369 | > | /* otherwise, use class ranking */ | 
| 370 | > | for (rp = ourrank; *rp != -1; rp++) { | 
| 371 | > | if (v1->class == *rp) | 
| 372 | > | return(-1); | 
| 373 | > | if (v2->class == *rp) | 
| 374 | > | return(1); | 
| 375 | > | } | 
| 376 | > | return(0); | 
| 377 |  | } | 
| 378 |  |  | 
| 379 |  |  | 
| 380 | < | quit(code) | 
| 291 | < | int  code; | 
| 380 | > | getbestvis()                    /* get the best visual for this screen */ | 
| 381 |  | { | 
| 382 | < | exit(code); | 
| 382 | > | #ifdef DEBUG | 
| 383 | > | static char  vistype[][12] = { | 
| 384 | > | "StaticGray", | 
| 385 | > | "GrayScale", | 
| 386 | > | "StaticColor", | 
| 387 | > | "PseudoColor", | 
| 388 | > | "TrueColor", | 
| 389 | > | "DirectColor" | 
| 390 | > | }; | 
| 391 | > | #endif | 
| 392 | > | static int      rankings[3][6] = { | 
| 393 | > | {TrueColor,DirectColor,PseudoColor,GrayScale,StaticGray,-1}, | 
| 394 | > | {PseudoColor,GrayScale,StaticGray,-1}, | 
| 395 | > | {PseudoColor,GrayScale,StaticGray,-1} | 
| 396 | > | }; | 
| 397 | > | XVisualInfo     *xvi; | 
| 398 | > | int     vismatched; | 
| 399 | > | register int    i, j; | 
| 400 | > |  | 
| 401 | > | if (greyscale) { | 
| 402 | > | ourrank = rankings[2]; | 
| 403 | > | if (maxcolors < 2) maxcolors = 256; | 
| 404 | > | } else if (maxcolors >= 2 && maxcolors <= 256) | 
| 405 | > | ourrank = rankings[1]; | 
| 406 | > | else { | 
| 407 | > | ourrank = rankings[0]; | 
| 408 | > | maxcolors = 256; | 
| 409 | > | } | 
| 410 | > | /* find best visual */ | 
| 411 | > | ourvis.screen = ourscreen; | 
| 412 | > | xvi = XGetVisualInfo(thedisplay,VisualScreenMask,&ourvis,&vismatched); | 
| 413 | > | if (xvi == NULL) | 
| 414 | > | quiterr("no visuals for this screen!"); | 
| 415 | > | #ifdef DEBUG | 
| 416 | > | fprintf(stderr, "Supported visuals:\n"); | 
| 417 | > | for (i = 0; i < vismatched; i++) | 
| 418 | > | fprintf(stderr, "\ttype %s, depth %d\n", | 
| 419 | > | vistype[xvi[i].class], xvi[i].depth); | 
| 420 | > | #endif | 
| 421 | > | for (i = 0, j = 1; j < vismatched; j++) | 
| 422 | > | if (viscmp(&xvi[i],&xvi[j]) > 0) | 
| 423 | > | i = j; | 
| 424 | > | /* compare to least acceptable */ | 
| 425 | > | for (j = 0; ourrank[j++] != -1; ) | 
| 426 | > | ; | 
| 427 | > | ourvis.class = ourrank[--j]; | 
| 428 | > | ourvis.depth = 1; | 
| 429 | > | if (viscmp(&xvi[i],&ourvis) > 0) | 
| 430 | > | quiterr("inadequate visuals on this screen"); | 
| 431 | > | /* OK, we'll use it */ | 
| 432 | > | copystruct(&ourvis, &xvi[i]); | 
| 433 | > | #ifdef DEBUG | 
| 434 | > | fprintf(stderr, "Selected visual type %s, depth %d\n", | 
| 435 | > | vistype[ourvis.class], ourvis.depth); | 
| 436 | > | #endif | 
| 437 | > | /* make appropriate adjustments */ | 
| 438 | > | if (ourvis.class == GrayScale || ourvis.class == StaticGray) | 
| 439 | > | greyscale = 1; | 
| 440 | > | if (ourvis.depth <= 8 && ourvis.colormap_size < maxcolors) | 
| 441 | > | maxcolors = ourvis.colormap_size; | 
| 442 | > | if (ourvis.class == StaticGray) { | 
| 443 | > | ourblack = 0; | 
| 444 | > | ourwhite = 255; | 
| 445 | > | } else if (ourvis.class == PseudoColor) { | 
| 446 | > | ourblack = BlackPixel(thedisplay,ourscreen); | 
| 447 | > | ourwhite = WhitePixel(thedisplay,ourscreen); | 
| 448 | > | if ((ourblack|ourwhite) & ~255L) { | 
| 449 | > | ourblack = 0; | 
| 450 | > | ourwhite = 1; | 
| 451 | > | } | 
| 452 | > | if (maxcolors > 4) | 
| 453 | > | maxcolors -= 2; | 
| 454 | > | } else { | 
| 455 | > | ourblack = 0; | 
| 456 | > | ourwhite = ourvis.red_mask|ourvis.green_mask|ourvis.blue_mask; | 
| 457 | > | } | 
| 458 | > | XFree((char *)xvi); | 
| 459 |  | } | 
| 460 |  |  | 
| 461 |  |  | 
| 462 |  | getras()                                /* get raster file */ | 
| 463 |  | { | 
| 299 | – | colormap        ourmap; | 
| 464 |  | XVisualInfo     vinfo; | 
| 465 |  |  | 
| 466 |  | if (maxcolors <= 2) {           /* monochrome */ | 
| 467 |  | ourdata = (unsigned char *)malloc(ymax*((xmax+7)/8)); | 
| 468 |  | if (ourdata == NULL) | 
| 469 |  | goto fail; | 
| 470 | < | ourras = make_raster(thedisplay, ourscreen, 1, ourdata, | 
| 470 | > | ourras = make_raster(thedisplay, &ourvis, 1, ourdata, | 
| 471 |  | xmax, ymax, 8); | 
| 472 |  | if (ourras == NULL) | 
| 473 |  | goto fail; | 
| 474 |  | getmono(); | 
| 475 | < | } else if (XMatchVisualInfo(thedisplay,ourscreen,24,TrueColor,&vinfo) | 
| 476 | < | /* kludge for DirectColor */ | 
| 313 | < | || XMatchVisualInfo(thedisplay,ourscreen,24,DirectColor,&vinfo)) { | 
| 314 | < | ourdata = (unsigned char *)malloc(xmax*ymax*3); | 
| 475 | > | } else if (ourvis.class == TrueColor | ourvis.class == DirectColor) { | 
| 476 | > | ourdata = (unsigned char *)malloc(sizeof(int4)*xmax*ymax); | 
| 477 |  | if (ourdata == NULL) | 
| 478 |  | goto fail; | 
| 479 | < | ourras = make_raster(thedisplay, ourscreen, 24, ourdata, | 
| 480 | < | xmax, ymax, 8); | 
| 479 | > | ourras = make_raster(thedisplay, &ourvis, sizeof(int4)*8, | 
| 480 | > | ourdata, xmax, ymax, 32); | 
| 481 |  | if (ourras == NULL) | 
| 482 |  | goto fail; | 
| 483 |  | getfull(); | 
| 485 |  | ourdata = (unsigned char *)malloc(xmax*ymax); | 
| 486 |  | if (ourdata == NULL) | 
| 487 |  | goto fail; | 
| 488 | < | ourras = make_raster(thedisplay, ourscreen, 8, ourdata, | 
| 488 | > | ourras = make_raster(thedisplay, &ourvis, 8, ourdata, | 
| 489 |  | xmax, ymax, 8); | 
| 490 |  | if (ourras == NULL) | 
| 491 |  | goto fail; | 
| 492 | < | if (greyscale) | 
| 493 | < | biq(dither,maxcolors,1,ourmap); | 
| 492 | > | if (greyscale | ourvis.class == StaticGray) | 
| 493 | > | getgrey(); | 
| 494 |  | else | 
| 495 | < | ciq(dither,maxcolors,1,ourmap); | 
| 496 | < | if (init_rcolors(ourras, ourmap[0], ourmap[1], ourmap[2]) == 0) | 
| 495 | > | getmapped(); | 
| 496 | > | if (ourvis.class != StaticGray && !init_rcolors(ourras,clrtab)) | 
| 497 |  | goto fail; | 
| 498 |  | } | 
| 499 |  | return; | 
| 504 |  |  | 
| 505 |  | getevent()                              /* process the next event */ | 
| 506 |  | { | 
| 507 | < | union { | 
| 346 | < | XEvent  u; | 
| 347 | < | XConfigureEvent  c; | 
| 348 | < | XExposeEvent  e; | 
| 349 | < | XButtonPressedEvent  b; | 
| 350 | < | XKeyPressedEvent  k; | 
| 351 | < | } e; | 
| 507 | > | XEvent xev; | 
| 508 |  |  | 
| 509 | < | XNextEvent(thedisplay, &e.u); | 
| 510 | < | switch (e.u.type) { | 
| 509 | > | XNextEvent(thedisplay, &xev); | 
| 510 | > | switch ((int)xev.type) { | 
| 511 |  | case KeyPress: | 
| 512 | < | docom(&e.k); | 
| 512 | > | docom(&xev.xkey); | 
| 513 |  | break; | 
| 514 |  | case ConfigureNotify: | 
| 515 | < | width = e.c.width; | 
| 516 | < | height = e.c.height; | 
| 515 | > | width = xev.xconfigure.width; | 
| 516 | > | height = xev.xconfigure.height; | 
| 517 |  | break; | 
| 518 |  | case MapNotify: | 
| 519 |  | map_rcolors(ourras, wind); | 
| 520 |  | if (fast) | 
| 521 | < | make_rpixmap(ourras); | 
| 521 | > | make_rpixmap(ourras, wind); | 
| 522 |  | break; | 
| 523 |  | case UnmapNotify: | 
| 524 | < | unmap_rcolors(ourras); | 
| 524 | > | if (!fast) | 
| 525 | > | unmap_rcolors(ourras); | 
| 526 |  | break; | 
| 527 |  | case Expose: | 
| 528 | < | redraw(e.e.x, e.e.y, e.e.width, e.e.height); | 
| 528 | > | redraw(xev.xexpose.x, xev.xexpose.y, | 
| 529 | > | xev.xexpose.width, xev.xexpose.height); | 
| 530 |  | break; | 
| 531 |  | case ButtonPress: | 
| 532 | < | if (e.b.state & (ShiftMask|ControlMask)) | 
| 533 | < | moveimage(&e.b); | 
| 532 | > | if (xev.xbutton.state & (ShiftMask|ControlMask)) | 
| 533 | > | moveimage(&xev.xbutton); | 
| 534 | > | else if (xev.xbutton.button == Button2) | 
| 535 | > | traceray(xev.xbutton.x, xev.xbutton.y); | 
| 536 |  | else | 
| 537 | < | getbox(&e.b); | 
| 537 | > | getbox(&xev.xbutton); | 
| 538 |  | break; | 
| 539 | + | case ClientMessage: | 
| 540 | + | if ((xev.xclient.message_type == wmProtocolsAtom) && | 
| 541 | + | (xev.xclient.data.l[0] == closedownAtom)) | 
| 542 | + | quiterr(NULL); | 
| 543 | + | break; | 
| 544 |  | } | 
| 545 |  | } | 
| 546 |  |  | 
| 547 |  |  | 
| 548 | < | docom(ekey)                                     /* execute command */ | 
| 548 | > | traceray(xpos, ypos)                    /* print ray corresponding to pixel */ | 
| 549 | > | int  xpos, ypos; | 
| 550 | > | { | 
| 551 | > | FLOAT  hv[2]; | 
| 552 | > | FVECT  rorg, rdir; | 
| 553 | > |  | 
| 554 | > | if (!gotview) {         /* no view, no can do */ | 
| 555 | > | XBell(thedisplay, 0); | 
| 556 | > | return(-1); | 
| 557 | > | } | 
| 558 | > | pix2loc(hv, &inpres, xpos-xoff, ypos-yoff); | 
| 559 | > | if (viewray(rorg, rdir, &ourview, hv[0], hv[1]) < 0) | 
| 560 | > | return(-1); | 
| 561 | > | printf("%e %e %e ", rorg[0], rorg[1], rorg[2]); | 
| 562 | > | printf("%e %e %e\n", rdir[0], rdir[1], rdir[2]); | 
| 563 | > | fflush(stdout); | 
| 564 | > | return(0); | 
| 565 | > | } | 
| 566 | > |  | 
| 567 | > |  | 
| 568 | > | docom(ekey)                             /* execute command */ | 
| 569 |  | XKeyPressedEvent  *ekey; | 
| 570 |  | { | 
| 571 |  | char  buf[80]; | 
| 573 |  | XColor  cvx; | 
| 574 |  | int  com, n; | 
| 575 |  | double  comp; | 
| 576 | < | FVECT  rorg, rdir; | 
| 576 | > | FLOAT  hv[2]; | 
| 577 |  |  | 
| 578 |  | n = XLookupString(ekey, buf, sizeof(buf), NULL, NULL); | 
| 579 |  | if (n == 0) | 
| 581 |  | com = buf[0]; | 
| 582 |  | switch (com) {                  /* interpret command */ | 
| 583 |  | case 'q': | 
| 584 | < | case CTRL(D):                           /* quit */ | 
| 585 | < | quit(0); | 
| 584 | > | case 'Q': | 
| 585 | > | case CTRL('D'):                         /* quit */ | 
| 586 | > | quiterr(NULL); | 
| 587 |  | case '\n': | 
| 588 |  | case '\r': | 
| 589 |  | case 'l': | 
| 596 |  | sprintf(buf, "%.3f", intens(cval)/exposure); | 
| 597 |  | break; | 
| 598 |  | case 'l':                               /* luminance */ | 
| 599 | < | sprintf(buf, "%.0fn", bright(cval)*683.0/exposure); | 
| 599 | > | sprintf(buf, "%.0fL", luminance(cval)/exposure); | 
| 600 |  | break; | 
| 601 |  | case 'c':                               /* color */ | 
| 602 |  | comp = pow(2.0, (double)scale); | 
| 622 |  | XStoreColor(thedisplay, ourras->cmap, &cvx); | 
| 623 |  | return(0); | 
| 624 |  | case 'p':                               /* position */ | 
| 625 | < | sprintf(buf, "(%d,%d)", ekey->x-xoff, ymax-1-ekey->y+yoff); | 
| 625 | > | pix2loc(hv, &inpres, ekey->x-xoff, ekey->y-yoff); | 
| 626 | > | sprintf(buf, "(%d,%d)", (int)(hv[0]*inpres.xr), | 
| 627 | > | (int)(hv[1]*inpres.yr)); | 
| 628 |  | XDrawImageString(thedisplay, wind, ourgc, ekey->x, ekey->y, | 
| 629 |  | buf, strlen(buf)); | 
| 630 |  | return(0); | 
| 631 |  | case 't':                               /* trace */ | 
| 632 | < | if (!gotview) { | 
| 445 | < | XBell(thedisplay, 0); | 
| 446 | < | return(-1); | 
| 447 | < | } | 
| 448 | < | if (viewray(rorg, rdir, &ourview, | 
| 449 | < | (ekey->x-xoff+.5)/xmax, | 
| 450 | < | (ymax-1-ekey->y+yoff+.5)/ymax) < 0) | 
| 451 | < | return(-1); | 
| 452 | < | printf("%e %e %e ", rorg[0], rorg[1], rorg[2]); | 
| 453 | < | printf("%e %e %e\n", rdir[0], rdir[1], rdir[2]); | 
| 454 | < | fflush(stdout); | 
| 455 | < | return(0); | 
| 632 | > | return(traceray(ekey->x, ekey->y)); | 
| 633 |  | case '=':                               /* adjust exposure */ | 
| 634 | + | case '@':                               /* adaptation level */ | 
| 635 |  | if (avgbox(cval) == -1) | 
| 636 |  | return(-1); | 
| 637 | < | n = log(.5/bright(cval))/.69315 - scale;        /* truncate */ | 
| 637 | > | comp = com=='@' | 
| 638 | > | ? 106./pow(1.219+pow(luminance(cval)/exposure,.4),2.5)/exposure | 
| 639 | > | : .5/bright(cval) ; | 
| 640 | > | comp = log(comp)/.69315 - scale; | 
| 641 | > | n = comp < 0 ? comp-.5 : comp+.5 ;      /* round */ | 
| 642 |  | if (n == 0) | 
| 643 |  | return(0); | 
| 644 |  | scale_rcolors(ourras, pow(2.0, (double)n)); | 
| 651 |  | free_raster(ourras); | 
| 652 |  | getras(); | 
| 653 |  | /* fall through */ | 
| 654 | < | case CTRL(R):                           /* redraw */ | 
| 655 | < | case CTRL(L): | 
| 654 | > | case CTRL('R'):                         /* redraw */ | 
| 655 | > | case CTRL('L'): | 
| 656 |  | unmap_rcolors(ourras); | 
| 657 |  | XClearWindow(thedisplay, wind); | 
| 658 |  | map_rcolors(ourras, wind); | 
| 659 |  | if (fast) | 
| 660 | < | make_rpixmap(ourras); | 
| 660 | > | make_rpixmap(ourras, wind); | 
| 661 |  | redraw(0, 0, width, height); | 
| 662 |  | return(0); | 
| 663 | + | case 'f':                               /* turn on fast redraw */ | 
| 664 | + | fast = 1; | 
| 665 | + | make_rpixmap(ourras, wind); | 
| 666 | + | return(0); | 
| 667 | + | case 'F':                               /* turn off fast redraw */ | 
| 668 | + | fast = 0; | 
| 669 | + | free_rpixmap(ourras); | 
| 670 | + | return(0); | 
| 671 | + | case '0':                               /* recenter origin */ | 
| 672 | + | if (xoff == 0 & yoff == 0) | 
| 673 | + | return(0); | 
| 674 | + | xoff = yoff = 0; | 
| 675 | + | XClearWindow(thedisplay, wind); | 
| 676 | + | redraw(0, 0, width, height); | 
| 677 | + | return(0); | 
| 678 |  | case ' ':                               /* clear */ | 
| 679 |  | redraw(box.xmin, box.ymin, box.xsiz, box.ysiz); | 
| 680 |  | return(0); | 
| 688 |  | moveimage(ebut)                         /* shift the image */ | 
| 689 |  | XButtonPressedEvent  *ebut; | 
| 690 |  | { | 
| 691 | < | union { | 
| 495 | < | XEvent  u; | 
| 496 | < | XButtonReleasedEvent  b; | 
| 497 | < | XPointerMovedEvent  m; | 
| 498 | < | }  e; | 
| 691 | > | XEvent  e; | 
| 692 |  | int     mxo, myo; | 
| 693 |  |  | 
| 694 | < | XMaskEvent(thedisplay, ButtonReleaseMask|ButtonMotionMask, &e.u); | 
| 695 | < | while (e.u.type == MotionNotify) { | 
| 696 | < | mxo = e.m.x; | 
| 697 | < | myo = e.m.y; | 
| 694 | > | XMaskEvent(thedisplay, ButtonReleaseMask|ButtonMotionMask, &e); | 
| 695 | > | while (e.type == MotionNotify) { | 
| 696 | > | mxo = e.xmotion.x; | 
| 697 | > | myo = e.xmotion.y; | 
| 698 |  | revline(ebut->x, ebut->y, mxo, myo); | 
| 699 |  | revbox(xoff+mxo-ebut->x, yoff+myo-ebut->y, | 
| 700 |  | xoff+mxo-ebut->x+xmax, yoff+myo-ebut->y+ymax); | 
| 701 | < | XMaskEvent(thedisplay,ButtonReleaseMask|ButtonMotionMask,&e.u); | 
| 701 | > | XMaskEvent(thedisplay,ButtonReleaseMask|ButtonMotionMask,&e); | 
| 702 |  | revline(ebut->x, ebut->y, mxo, myo); | 
| 703 |  | revbox(xoff+mxo-ebut->x, yoff+myo-ebut->y, | 
| 704 |  | xoff+mxo-ebut->x+xmax, yoff+myo-ebut->y+ymax); | 
| 705 |  | } | 
| 706 | < | xoff += e.b.x - ebut->x; | 
| 707 | < | yoff += e.b.y - ebut->y; | 
| 706 | > | xoff += e.xbutton.x - ebut->x; | 
| 707 | > | yoff += e.xbutton.y - ebut->y; | 
| 708 |  | XClearWindow(thedisplay, wind); | 
| 709 |  | redraw(0, 0, width, height); | 
| 710 |  | } | 
| 713 |  | getbox(ebut)                            /* get new box */ | 
| 714 |  | XButtonPressedEvent  *ebut; | 
| 715 |  | { | 
| 716 | < | union { | 
| 524 | < | XEvent  u; | 
| 525 | < | XButtonReleasedEvent  b; | 
| 526 | < | XPointerMovedEvent  m; | 
| 527 | < | }  e; | 
| 716 | > | XEvent  e; | 
| 717 |  |  | 
| 718 | < | XMaskEvent(thedisplay, ButtonReleaseMask|ButtonMotionMask, &e.u); | 
| 719 | < | while (e.u.type == MotionNotify) { | 
| 720 | < | revbox(ebut->x, ebut->y, box.xmin = e.m.x, box.ymin = e.m.y); | 
| 721 | < | XMaskEvent(thedisplay,ButtonReleaseMask|ButtonMotionMask,&e.u); | 
| 718 | > | XMaskEvent(thedisplay, ButtonReleaseMask|ButtonMotionMask, &e); | 
| 719 | > | while (e.type == MotionNotify) { | 
| 720 | > | revbox(ebut->x, ebut->y, box.xmin = e.xmotion.x, box.ymin = e.xmotion.y); | 
| 721 | > | XMaskEvent(thedisplay,ButtonReleaseMask|ButtonMotionMask,&e); | 
| 722 |  | revbox(ebut->x, ebut->y, box.xmin, box.ymin); | 
| 723 |  | } | 
| 724 | < | box.xmin = e.b.x<0 ? 0 : (e.b.x>=width ? width-1 : e.b.x); | 
| 725 | < | box.ymin = e.b.y<0 ? 0 : (e.b.y>=height ? height-1 : e.b.y); | 
| 724 | > | box.xmin = e.xbutton.x<0 ? 0 : (e.xbutton.x>=width ? width-1 : e.xbutton.x); | 
| 725 | > | box.ymin = e.xbutton.y<0 ? 0 : (e.xbutton.y>=height ? height-1 : e.xbutton.y); | 
| 726 |  | if (box.xmin > ebut->x) { | 
| 727 |  | box.xsiz = box.xmin - ebut->x + 1; | 
| 728 |  | box.xmin = ebut->x; | 
| 751 |  | avgbox(clr)                             /* average color over current box */ | 
| 752 |  | COLOR  clr; | 
| 753 |  | { | 
| 754 | + | static COLOR  lc; | 
| 755 | + | static int  ll, lr, lt, lb; | 
| 756 |  | int  left, right, top, bottom; | 
| 757 |  | int  y; | 
| 758 |  | double  d; | 
| 776 |  | bottom = ymax; | 
| 777 |  | if (top >= bottom) | 
| 778 |  | return(-1); | 
| 779 | + | if (left == ll && right == lr && top == lt && bottom == lb) { | 
| 780 | + | copycolor(clr, lc); | 
| 781 | + | return(0); | 
| 782 | + | } | 
| 783 |  | for (y = top; y < bottom; y++) { | 
| 784 |  | if (getscan(y) == -1) | 
| 785 |  | return(-1); | 
| 790 |  | } | 
| 791 |  | d = 1.0/((right-left)*(bottom-top)); | 
| 792 |  | scalecolor(clr, d); | 
| 793 | + | ll = left; lr = right; lt = top; lb = bottom; | 
| 794 | + | copycolor(lc, clr); | 
| 795 |  | return(0); | 
| 796 |  | } | 
| 797 |  |  | 
| 800 |  | { | 
| 801 |  | register unsigned char  *dp; | 
| 802 |  | register int    x, err; | 
| 803 | < | int     y; | 
| 607 | < | rgbpixel        *inl; | 
| 803 | > | int     y, errp; | 
| 804 |  | short   *cerr; | 
| 805 |  |  | 
| 806 | < | if ((inl = (rgbpixel *)malloc(xmax*sizeof(rgbpixel))) == NULL | 
| 611 | < | || (cerr = (short *)calloc(xmax,sizeof(short))) == NULL) | 
| 806 | > | if ((cerr = (short *)calloc(xmax,sizeof(short))) == NULL) | 
| 807 |  | quiterr("out of memory in getmono"); | 
| 808 |  | dp = ourdata - 1; | 
| 809 |  | for (y = 0; y < ymax; y++) { | 
| 810 | < | picreadline3(y, inl); | 
| 810 | > | getscan(y); | 
| 811 | > | add2icon(y, scanline); | 
| 812 | > | normcolrs(scanline, xmax, scale); | 
| 813 |  | err = 0; | 
| 814 |  | for (x = 0; x < xmax; x++) { | 
| 815 |  | if (!(x&7)) | 
| 816 |  | *++dp = 0; | 
| 817 | < | err += rgb_bright(&inl[x]) + cerr[x]; | 
| 817 | > | errp = err; | 
| 818 | > | err += normbright(scanline[x]) + cerr[x]; | 
| 819 |  | if (err > 127) | 
| 820 |  | err -= 255; | 
| 821 |  | else | 
| 822 |  | *dp |= 1<<(7-(x&07)); | 
| 823 | < | cerr[x] = err >>= 1; | 
| 823 | > | err /= 3; | 
| 824 | > | cerr[x] = err + errp; | 
| 825 |  | } | 
| 826 |  | } | 
| 628 | – | free((char *)inl); | 
| 827 |  | free((char *)cerr); | 
| 828 |  | } | 
| 829 |  |  | 
| 830 |  |  | 
| 831 | + | add2icon(y, scan)               /* add a scanline to our icon data */ | 
| 832 | + | int  y; | 
| 833 | + | COLR  *scan; | 
| 834 | + | { | 
| 835 | + | static short  cerr[ICONSIZ]; | 
| 836 | + | static int  ynext; | 
| 837 | + | static char  *dp; | 
| 838 | + | COLR  clr; | 
| 839 | + | register int  err; | 
| 840 | + | register int    x, ti; | 
| 841 | + | int  errp; | 
| 842 | + |  | 
| 843 | + | if (iconheight == 0) {          /* initialize */ | 
| 844 | + | if (xmax <= ICONSIZ && ymax <= ICONSIZ) { | 
| 845 | + | iconwidth = xmax; | 
| 846 | + | iconheight = ymax; | 
| 847 | + | } else if (xmax > ymax) { | 
| 848 | + | iconwidth = ICONSIZ; | 
| 849 | + | iconheight = ICONSIZ*ymax/xmax; | 
| 850 | + | if (iconheight < 1) | 
| 851 | + | iconheight = 1; | 
| 852 | + | } else { | 
| 853 | + | iconwidth = ICONSIZ*xmax/ymax; | 
| 854 | + | if (iconwidth < 1) | 
| 855 | + | iconwidth = 1; | 
| 856 | + | iconheight = ICONSIZ; | 
| 857 | + | } | 
| 858 | + | ynext = 0; | 
| 859 | + | dp = icondata - 1; | 
| 860 | + | } | 
| 861 | + | if (y < ynext*ymax/iconheight)  /* skip this one */ | 
| 862 | + | return; | 
| 863 | + | err = 0; | 
| 864 | + | for (x = 0; x < iconwidth; x++) { | 
| 865 | + | if (!(x&7)) | 
| 866 | + | *++dp = 0; | 
| 867 | + | errp = err; | 
| 868 | + | ti = x*xmax/iconwidth; | 
| 869 | + | copycolr(clr, scan[ti]); | 
| 870 | + | normcolrs(clr, 1, scale); | 
| 871 | + | err += normbright(clr) + cerr[x]; | 
| 872 | + | if (err > 127) | 
| 873 | + | err -= 255; | 
| 874 | + | else | 
| 875 | + | *dp |= 1<<(x&07); | 
| 876 | + | err /= 3; | 
| 877 | + | cerr[x] = err + errp; | 
| 878 | + | } | 
| 879 | + | ynext++; | 
| 880 | + | } | 
| 881 | + |  | 
| 882 | + |  | 
| 883 |  | getfull()                       /* get full (24-bit) data */ | 
| 884 |  | { | 
| 885 |  | int     y; | 
| 886 | + | register unsigned int4  *dp; | 
| 887 | + | register int    x; | 
| 888 | + | /* set gamma correction */ | 
| 889 | + | setcolrgam(gamcor); | 
| 890 | + | /* read and convert file */ | 
| 891 | + | dp = (unsigned int4 *)ourdata; | 
| 892 | + | for (y = 0; y < ymax; y++) { | 
| 893 | + | getscan(y); | 
| 894 | + | add2icon(y, scanline); | 
| 895 | + | if (scale) | 
| 896 | + | shiftcolrs(scanline, xmax, scale); | 
| 897 | + | colrs_gambs(scanline, xmax); | 
| 898 | + | if (ourras->image->blue_mask & 1) | 
| 899 | + | for (x = 0; x < xmax; x++) | 
| 900 | + | *dp++ = scanline[x][RED] << 16 | | 
| 901 | + | scanline[x][GRN] << 8 | | 
| 902 | + | scanline[x][BLU] ; | 
| 903 | + | else | 
| 904 | + | for (x = 0; x < xmax; x++) | 
| 905 | + | *dp++ = scanline[x][RED] | | 
| 906 | + | scanline[x][GRN] << 8 | | 
| 907 | + | scanline[x][BLU] << 16 ; | 
| 908 | + | } | 
| 909 | + | } | 
| 910 |  |  | 
| 911 | < | for (y = 0; y < ymax; y++) | 
| 912 | < | picreadline3(y, (rgbpixel *)(ourdata+y*xmax*3)); | 
| 911 | > |  | 
| 912 | > | getgrey()                       /* get greyscale data */ | 
| 913 | > | { | 
| 914 | > | int     y; | 
| 915 | > | register unsigned char  *dp; | 
| 916 | > | register int    x; | 
| 917 | > | /* set gamma correction */ | 
| 918 | > | setcolrgam(gamcor); | 
| 919 | > | /* read and convert file */ | 
| 920 | > | dp = ourdata; | 
| 921 | > | for (y = 0; y < ymax; y++) { | 
| 922 | > | getscan(y); | 
| 923 | > | add2icon(y, scanline); | 
| 924 | > | if (scale) | 
| 925 | > | shiftcolrs(scanline, xmax, scale); | 
| 926 | > | for (x = 0; x < xmax; x++) | 
| 927 | > | scanline[x][GRN] = normbright(scanline[x]); | 
| 928 | > | colrs_gambs(scanline, xmax); | 
| 929 | > | if (maxcolors < 256) | 
| 930 | > | for (x = 0; x < xmax; x++) | 
| 931 | > | *dp++ = ((long)scanline[x][GRN] * | 
| 932 | > | maxcolors + maxcolors/2) >> 8; | 
| 933 | > | else | 
| 934 | > | for (x = 0; x < xmax; x++) | 
| 935 | > | *dp++ = scanline[x][GRN]; | 
| 936 | > | } | 
| 937 | > | for (x = 0; x < maxcolors; x++) | 
| 938 | > | clrtab[x][RED] = clrtab[x][GRN] = | 
| 939 | > | clrtab[x][BLU] = ((long)x*256 + 128)/maxcolors; | 
| 940 |  | } | 
| 941 |  |  | 
| 942 |  |  | 
| 943 | + | getmapped()                     /* get color-mapped data */ | 
| 944 | + | { | 
| 945 | + | int     y; | 
| 946 | + | /* set gamma correction */ | 
| 947 | + | setcolrgam(gamcor); | 
| 948 | + | /* make histogram */ | 
| 949 | + | new_histo(); | 
| 950 | + | for (y = 0; y < ymax; y++) { | 
| 951 | + | if (getscan(y) < 0) | 
| 952 | + | quiterr("seek error in getmapped"); | 
| 953 | + | add2icon(y, scanline); | 
| 954 | + | if (scale) | 
| 955 | + | shiftcolrs(scanline, xmax, scale); | 
| 956 | + | colrs_gambs(scanline, xmax); | 
| 957 | + | cnt_colrs(scanline, xmax); | 
| 958 | + | } | 
| 959 | + | /* map pixels */ | 
| 960 | + | if (!new_clrtab(maxcolors)) | 
| 961 | + | quiterr("cannot create color map"); | 
| 962 | + | for (y = 0; y < ymax; y++) { | 
| 963 | + | if (getscan(y) < 0) | 
| 964 | + | quiterr("seek error in getmapped"); | 
| 965 | + | if (scale) | 
| 966 | + | shiftcolrs(scanline, xmax, scale); | 
| 967 | + | colrs_gambs(scanline, xmax); | 
| 968 | + | if (dither) | 
| 969 | + | dith_colrs(ourdata+y*xmax, scanline, xmax); | 
| 970 | + | else | 
| 971 | + | map_colrs(ourdata+y*xmax, scanline, xmax); | 
| 972 | + | } | 
| 973 | + | } | 
| 974 | + |  | 
| 975 | + |  | 
| 976 |  | scale_rcolors(xr, sf)                   /* scale color map */ | 
| 977 |  | register XRASTER        *xr; | 
| 978 |  | double  sf; | 
| 1010 |  | if (fseek(fin, scanpos[y], 0) == -1) | 
| 1011 |  | quiterr("fseek error"); | 
| 1012 |  | cury = y; | 
| 1013 | < | } else if (scanpos != NULL) | 
| 1013 | > | } else if (scanpos != NULL && scanpos[y] == -1) | 
| 1014 |  | scanpos[y] = ftell(fin); | 
| 1015 |  |  | 
| 1016 |  | if (freadcolrs(scanline, xmax, fin) < 0) | 
| 1018 |  |  | 
| 1019 |  | cury++; | 
| 1020 |  | return(0); | 
| 687 | – | } | 
| 688 | – |  | 
| 689 | – |  | 
| 690 | – | picreadline3(y, l3)                     /* read in 3-byte scanline */ | 
| 691 | – | int  y; | 
| 692 | – | register rgbpixel  *l3; | 
| 693 | – | { | 
| 694 | – | register int    i; | 
| 695 | – | /* read scanline */ | 
| 696 | – | if (getscan(y) < 0) | 
| 697 | – | quiterr("cannot seek for picreadline"); | 
| 698 | – | /* convert scanline */ | 
| 699 | – | normcolrs(scanline, xmax, scale); | 
| 700 | – | for (i = 0; i < xmax; i++) { | 
| 701 | – | l3[i].r = scanline[i][RED]; | 
| 702 | – | l3[i].g = scanline[i][GRN]; | 
| 703 | – | l3[i].b = scanline[i][BLU]; | 
| 704 | – | } | 
| 705 | – | } | 
| 706 | – |  | 
| 707 | – |  | 
| 708 | – | picwriteline(y, l)              /* add 8-bit scanline to image */ | 
| 709 | – | int  y; | 
| 710 | – | pixel  *l; | 
| 711 | – | { | 
| 712 | – | bcopy((char *)l, (char *)ourdata+y*xmax, xmax); | 
| 713 | – | } | 
| 714 | – |  | 
| 715 | – |  | 
| 716 | – | picreadcm(map)                  /* do gamma correction */ | 
| 717 | – | colormap  map; | 
| 718 | – | { | 
| 719 | – | extern double  pow(); | 
| 720 | – | register int  i, val; | 
| 721 | – |  | 
| 722 | – | for (i = 0; i < 256; i++) { | 
| 723 | – | val = pow(i/256.0, 1.0/gamcor) * 256.0; | 
| 724 | – | map[0][i] = map[1][i] = map[2][i] = val; | 
| 725 | – | } | 
| 726 | – | } | 
| 727 | – |  | 
| 728 | – |  | 
| 729 | – | picwritecm(map)                 /* handled elsewhere */ | 
| 730 | – | colormap  map; | 
| 731 | – | { | 
| 732 | – | #ifdef DEBUG | 
| 733 | – | register int i; | 
| 734 | – |  | 
| 735 | – | for (i = 0; i < 256; i++) | 
| 736 | – | printf("%d %d %d\n", map[0][i],map[1][i],map[2][i]); | 
| 737 | – | #endif | 
| 1021 |  | } |