| 1 | – | /* Copyright (c) 1998 Silicon Graphics, Inc. */ | 
| 2 | – |  | 
| 1 |  | #ifndef lint | 
| 2 | < | static char SCCSid[] = "$SunId$ SGI"; | 
| 2 | > | static const char RCSid[] = "$Id$"; | 
| 3 |  | #endif | 
| 6 | – |  | 
| 4 |  | /* | 
| 5 |  | *  x11image.c - driver for X-windows | 
| 6 |  | * | 
| 18 |  |  | 
| 19 |  | #include  "standard.h" | 
| 20 |  |  | 
| 21 | + | #include  <string.h> | 
| 22 |  | #include  <signal.h> | 
| 23 | + | #include  <unistd.h> | 
| 24 | + | #include  <sys/types.h> | 
| 25 | + | #include  <sys/wait.h> | 
| 26 |  | #include  <X11/Xlib.h> | 
| 27 |  | #include  <X11/cursorfont.h> | 
| 28 |  | #include  <X11/Xutil.h> | 
| 29 |  | #include  <X11/Xatom.h> | 
| 30 |  |  | 
| 31 | < | #undef  NOPROTO | 
| 31 | < | #define NOPROTO 1 | 
| 31 | > | #include  "color.h" | 
| 32 |  | #include  "tonemap.h" | 
| 33 | + | #include  "clrtab.h" | 
| 34 |  | #include  "view.h" | 
| 35 |  | #include  "x11raster.h" | 
| 36 |  | #include  "random.h" | 
| 36 | – | #include  "resolu.h" | 
| 37 |  |  | 
| 38 | – | #ifndef  int4 | 
| 39 | – | #define  int4           int             /* most int's are 32-bit */ | 
| 40 | – | #endif | 
| 41 | – |  | 
| 38 |  | #define  FONTNAME       "8x13"          /* text font we'll use */ | 
| 39 |  |  | 
| 40 |  | #define  CTRL(c)        ((c)-'@') | 
| 83 |  |  | 
| 84 |  | COLR  *scanline;                        /* scan line buffer */ | 
| 85 |  | TMbright  *lscan;                       /* encoded luminance scanline */ | 
| 86 | < | BYTE  *cscan;                           /* encoded chroma scanline */ | 
| 87 | < | BYTE  *pscan;                           /* compute pixel scanline */ | 
| 86 | > | uby8  *cscan;                           /* encoded chroma scanline */ | 
| 87 | > | uby8  *pscan;                           /* compute pixel scanline */ | 
| 88 |  |  | 
| 89 |  | RESOLU  inpres;                         /* input resolution and ordering */ | 
| 90 |  | int  xmax, ymax;                        /* picture dimensions */ | 
| 91 |  | int  width, height;                     /* window size */ | 
| 92 |  | char  *fname = NULL;                    /* input file name */ | 
| 93 | < | FILE  *fin = stdin;                     /* input file */ | 
| 93 | > | FILE  *fin = NULL;                      /* input file */ | 
| 94 |  | long  *scanpos = NULL;                  /* scan line positions in file */ | 
| 95 |  | int  cury = 0;                          /* current scan location */ | 
| 96 |  |  | 
| 98 |  |  | 
| 99 |  | int  wrongformat = 0;                   /* input in another format? */ | 
| 100 |  |  | 
| 101 | + | TMstruct        *tmGlobal;              /* base tone-mapping */ | 
| 102 | + | TMstruct        *tmCurrent;             /* curren tone-mapping */ | 
| 103 | + |  | 
| 104 |  | GC      ourgc;                          /* standard graphics context */ | 
| 105 |  | GC      revgc;                          /* graphics context with GXinvert */ | 
| 106 |  |  | 
| 111 |  |  | 
| 112 |  | struct { | 
| 113 |  | int  xmin, ymin, xsiz, ysiz; | 
| 114 | < | }  box = {0, 0, 0, 0};                  /* current box */ | 
| 114 | > | }  bbox = {0, 0, 0, 0};                 /* current bbox */ | 
| 115 |  |  | 
| 116 |  | char  *geometry = NULL;                 /* geometry specification */ | 
| 117 |  |  | 
| 122 |  |  | 
| 123 |  | char  errmsg[128]; | 
| 124 |  |  | 
| 125 | < | BYTE  clrtab[256][3];                   /* global color map */ | 
| 125 | > | uby8  clrtab[256][3];                   /* global color map */ | 
| 126 |  |  | 
| 128 | – | extern long  ftell(); | 
| 127 |  |  | 
| 130 | – | extern char  *getenv(); | 
| 131 | – |  | 
| 128 |  | Display  *thedisplay; | 
| 129 |  | Atom  closedownAtom, wmProtocolsAtom; | 
| 130 |  |  | 
| 131 |  | int  sigrecv; | 
| 132 |  |  | 
| 133 | < | int  onsig() { sigrecv++; } | 
| 133 | > | void  onsig(int i) { sigrecv++; } | 
| 134 |  |  | 
| 135 | + | typedef void doboxf_t(COLR *scn, int n, void *); | 
| 136 |  |  | 
| 137 | < | main(argc, argv) | 
| 138 | < | int  argc; | 
| 139 | < | char  *argv[]; | 
| 137 | > | static gethfunc headline; | 
| 138 | > | static void init(int argc, char **argv); | 
| 139 | > | static void quiterr(char *err); | 
| 140 | > | static int viscmp(XVisualInfo *v1, XVisualInfo *v2); | 
| 141 | > | static void getbestvis(void); | 
| 142 | > | static void getras(void); | 
| 143 | > | static void getevent(void); | 
| 144 | > | static int traceray(int xpos, int ypos); | 
| 145 | > | static int docom(XKeyPressedEvent *ekey); | 
| 146 | > | static void moveimage(XButtonPressedEvent *ebut); | 
| 147 | > | static void getbox(XButtonPressedEvent *ebut); | 
| 148 | > | static void trackrays(XButtonPressedEvent *ebut); | 
| 149 | > | static void revbox(int x0, int y0, int x1, int y1); | 
| 150 | > | static doboxf_t colavg; | 
| 151 | > | static doboxf_t addfix; | 
| 152 | > | static int avgbox(COLOR cavg); | 
| 153 | > | static int dobox(doboxf_t *f, void *p); | 
| 154 | > | static void make_tonemap(void); | 
| 155 | > | static void tmap_colrs(COLR *scn, int len); | 
| 156 | > | static void getmono(void); | 
| 157 | > | static void add2icon(int y, COLR *scan); | 
| 158 | > | static void getfull(void); | 
| 159 | > | static void getgrey(void); | 
| 160 | > | static void getmapped(void); | 
| 161 | > | static void scale_rcolors(XRASTER *xr, double sf); | 
| 162 | > | static int getscan(int y); | 
| 163 | > |  | 
| 164 | > |  | 
| 165 | > | int | 
| 166 | > | main(int  argc, char  *argv[]) | 
| 167 |  | { | 
| 144 | – | int  headline(); | 
| 168 |  | int  i; | 
| 169 |  | int  pid; | 
| 170 |  |  | 
| 171 |  | progname = argv[0]; | 
| 172 | + | fin = stdin; | 
| 173 |  |  | 
| 174 |  | for (i = 1; i < argc; i++) | 
| 175 |  | if (argv[i][0] == '-') | 
| 271 |  | getevent();             /* main loop */ | 
| 272 |  | userr: | 
| 273 |  | fprintf(stderr, | 
| 274 | < | "Usage: %s [-di disp][[-ge] spec][-b][-m][-d][-f][-c nclrs][-e spec][-g gamcor][-s][-ospec][-t intvl] pic ..\n", | 
| 274 | > | "Usage: %s [-di disp][[-ge] spec][-b][-m][-d][-f][-c nclrs][-e spec][-g gamcor][-s][-ospec][-t intvl] hdr ..\n", | 
| 275 |  | progname); | 
| 276 |  | exit(1); | 
| 277 |  | } | 
| 278 |  |  | 
| 279 |  |  | 
| 280 | < | headline(s)             /* get relevant info from header */ | 
| 281 | < | char  *s; | 
| 280 | > | static int | 
| 281 | > | headline(               /* get relevant info from header */ | 
| 282 | > | char    *s, | 
| 283 | > | void    *p | 
| 284 | > | ) | 
| 285 |  | { | 
| 286 | < | char  fmt[32]; | 
| 286 | > | char  fmt[MAXFMTLEN]; | 
| 287 |  |  | 
| 288 |  | if (isexpos(s)) | 
| 289 |  | exposure *= exposval(s); | 
| 290 |  | else if (formatval(fmt, s)) | 
| 291 | < | wrongformat = strcmp(fmt, COLRFMT); | 
| 292 | < | else if (isview(s) && sscanview(&ourview, s) > 0) | 
| 293 | < | gotview++; | 
| 291 | > | wrongformat = strcmp(fmt, COLRFMT) && strcmp(fmt, SPECFMT); | 
| 292 | > | else if (isview(s)) | 
| 293 | > | gotview += sscanview(&ourview, s); | 
| 294 | > | else if (isncomp(s)) | 
| 295 | > | NCSAMP = ncompval(s); | 
| 296 | > | else if (iswlsplit(s)) | 
| 297 | > | wlsplitval(WLPART, s); | 
| 298 | > | return(0); | 
| 299 |  | } | 
| 300 |  |  | 
| 301 |  |  | 
| 302 | < | init(argc, argv)                        /* get data and open window */ | 
| 303 | < | int argc; | 
| 304 | < | char **argv; | 
| 302 | > | static void | 
| 303 | > | init(                   /* get data and open window */ | 
| 304 | > | int argc, | 
| 305 | > | char **argv | 
| 306 | > | ) | 
| 307 |  | { | 
| 308 |  | XSetWindowAttributes    ourwinattr; | 
| 309 |  | XClassHint      xclshints; | 
| 312 |  | XTextProperty   windowName, iconName; | 
| 313 |  | XGCValues       xgcv; | 
| 314 |  | char    *name; | 
| 315 | < | register int    i; | 
| 315 | > | int     i; | 
| 316 |  |  | 
| 317 |  | if (fname != NULL) { | 
| 318 |  | scanpos = (long *)malloc(ymax*sizeof(long)); | 
| 401 |  | windowName.encoding = iconName.encoding = XA_STRING; | 
| 402 |  | windowName.format = iconName.format = 8; | 
| 403 |  | windowName.value = (u_char *)name; | 
| 404 | < | windowName.nitems = strlen(windowName.value); | 
| 404 | > | windowName.nitems = strlen((char *)windowName.value); | 
| 405 |  | iconName.value = (u_char *)name; | 
| 406 | < | iconName.nitems = strlen(windowName.value); | 
| 406 | > | iconName.nitems = strlen((char *)windowName.value); | 
| 407 |  |  | 
| 408 |  | xclshints.res_name = NULL; | 
| 409 |  | xclshints.res_class = "Ximage"; | 
| 417 |  | } /* end of init */ | 
| 418 |  |  | 
| 419 |  |  | 
| 420 | < | quiterr(err)            /* print message and exit */ | 
| 421 | < | char  *err; | 
| 420 | > | static void | 
| 421 | > | quiterr(                /* print message and exit */ | 
| 422 | > | char  *err | 
| 423 | > | ) | 
| 424 |  | { | 
| 425 | < | register int  es; | 
| 425 | > | int  es; | 
| 426 |  | int  cs; | 
| 427 |  |  | 
| 428 | < | if (es = err != NULL) | 
| 428 | > | if ( (es = (err != NULL)) ) | 
| 429 |  | fprintf(stderr, "%s: %s: %s\n", progname, | 
| 430 |  | fname==NULL?"<stdin>":fname, err); | 
| 431 |  | if (thedisplay != NULL) | 
| 432 |  | XCloseDisplay(thedisplay); | 
| 433 | < | if (parent < 0 & sigrecv == 0) | 
| 433 | > | if ((parent < 0) & (sigrecv == 0)) | 
| 434 |  | kill(getppid(), SIGCONT); | 
| 435 |  | while (parent > 0 && wait(&cs) != -1) { /* wait for any children */ | 
| 436 |  | if (es == 0) | 
| 442 |  |  | 
| 443 |  |  | 
| 444 |  | static int | 
| 445 | < | viscmp(v1,v2)           /* compare visual to see which is better, descending */ | 
| 446 | < | register XVisualInfo    *v1, *v2; | 
| 445 | > | viscmp(         /* compare visual to see which is better, descending */ | 
| 446 | > | XVisualInfo     *v1, | 
| 447 | > | XVisualInfo     *v2 | 
| 448 | > | ) | 
| 449 |  | { | 
| 450 |  | int     bad1 = 0, bad2 = 0; | 
| 451 | < | register int  *rp; | 
| 451 | > | int  *rp; | 
| 452 |  |  | 
| 453 |  | if (v1->class == v2->class) { | 
| 454 | < | if (v1->class == TrueColor || v1->class == DirectColor) { | 
| 455 | < | /* prefer 24-bit to 32-bit */ | 
| 456 | < | if (v1->depth == 24 && v2->depth == 32) | 
| 454 | > | if ((v1->class == TrueColor) | (v1->class == DirectColor)) { | 
| 455 | > | /* prefer 24-bit */ | 
| 456 | > | if ((v1->depth == 24) & (v2->depth > 24)) | 
| 457 |  | return(-1); | 
| 458 | < | if (v1->depth == 32 && v2->depth == 24) | 
| 458 | > | if ((v1->depth > 24) & (v2->depth == 24)) | 
| 459 |  | return(1); | 
| 460 | < | return(0); | 
| 460 | > | /* go for maximum depth otherwise */ | 
| 461 | > | return(v2->depth - v1->depth); | 
| 462 |  | } | 
| 463 |  | /* don't be too greedy */ | 
| 464 | < | if (maxcolors <= 1<<v1->depth && maxcolors <= 1<<v2->depth) | 
| 464 | > | if ((maxcolors <= 1<<v1->depth) & (maxcolors <= 1<<v2->depth)) | 
| 465 |  | return(v1->depth - v2->depth); | 
| 466 |  | return(v2->depth - v1->depth); | 
| 467 |  | } | 
| 468 | < | /* prefer Pseudo when < 24-bit */ | 
| 469 | < | if ((v1->class == TrueColor || v1->class == DirectColor) && | 
| 470 | < | v1->depth < 24) | 
| 468 | > | /* prefer Pseudo when < 15-bit */ | 
| 469 | > | if ((v1->class == TrueColor) | (v1->class == DirectColor) && | 
| 470 | > | v1->depth < 15) | 
| 471 |  | bad1 = 1; | 
| 472 | < | if ((v2->class == TrueColor || v2->class == DirectColor) && | 
| 473 | < | v2->depth < 24) | 
| 472 | > | if ((v2->class == TrueColor) | (v2->class == DirectColor) && | 
| 473 | > | v2->depth < 15) | 
| 474 |  | bad2 = -1; | 
| 475 |  | if (bad1 | bad2) | 
| 476 |  | return(bad1+bad2); | 
| 485 |  | } | 
| 486 |  |  | 
| 487 |  |  | 
| 488 | < | getbestvis()                    /* get the best visual for this screen */ | 
| 488 | > | static void | 
| 489 | > | getbestvis(void)                        /* get the best visual for this screen */ | 
| 490 |  | { | 
| 491 |  | #ifdef DEBUG | 
| 492 |  | static char  vistype[][12] = { | 
| 505 |  | }; | 
| 506 |  | XVisualInfo     *xvi; | 
| 507 |  | int     vismatched; | 
| 508 | < | register int    i, j; | 
| 508 | > | int     i, j; | 
| 509 |  |  | 
| 510 |  | if (greyscale) { | 
| 511 |  | ourrank = rankings[2]; | 
| 538 |  | if (viscmp(&xvi[i],&ourvis) > 0) | 
| 539 |  | quiterr("inadequate visuals on this screen"); | 
| 540 |  | /* OK, we'll use it */ | 
| 541 | < | copystruct(&ourvis, &xvi[i]); | 
| 541 | > | ourvis = xvi[i]; | 
| 542 |  | #ifdef DEBUG | 
| 543 |  | fprintf(stderr, "Selected visual type %s, depth %d\n", | 
| 544 |  | vistype[ourvis.class], ourvis.depth); | 
| 568 |  | } | 
| 569 |  |  | 
| 570 |  |  | 
| 571 | < | getras()                                /* get raster file */ | 
| 571 | > | static void | 
| 572 | > | getras(void)                            /* get raster file */ | 
| 573 |  | { | 
| 533 | – | XVisualInfo     vinfo; | 
| 534 | – |  | 
| 574 |  | if (maxcolors <= 2) {           /* monochrome */ | 
| 575 |  | ourdata = (unsigned char *)malloc(ymax*((xmax+7)/8)); | 
| 576 |  | if (ourdata == NULL) | 
| 577 |  | goto fail; | 
| 578 | < | ourras = make_raster(thedisplay, &ourvis, 1, ourdata, | 
| 578 | > | ourras = make_raster(thedisplay, &ourvis, 1, (char *)ourdata, | 
| 579 |  | xmax, ymax, 8); | 
| 580 |  | if (ourras == NULL) | 
| 581 |  | goto fail; | 
| 582 |  | getmono(); | 
| 583 | < | } else if (ourvis.class == TrueColor | ourvis.class == DirectColor) { | 
| 584 | < | ourdata = (unsigned char *)malloc(sizeof(int4)*xmax*ymax); | 
| 583 | > | } else if ((ourvis.class == TrueColor) | (ourvis.class == DirectColor)) { | 
| 584 | > | int  datsiz = ourvis.depth>16 ? sizeof(int32) : sizeof(int16); | 
| 585 | > | ourdata = (unsigned char *)malloc(datsiz*xmax*ymax); | 
| 586 |  | if (ourdata == NULL) | 
| 587 |  | goto fail; | 
| 588 | < | ourras = make_raster(thedisplay, &ourvis, sizeof(int4)*8, | 
| 589 | < | ourdata, xmax, ymax, 32); | 
| 588 | > | ourras = make_raster(thedisplay, &ourvis, datsiz*8, | 
| 589 | > | (char *)ourdata, xmax, ymax, datsiz*8); | 
| 590 |  | if (ourras == NULL) | 
| 591 |  | goto fail; | 
| 592 |  | getfull(); | 
| 594 |  | ourdata = (unsigned char *)malloc(xmax*ymax); | 
| 595 |  | if (ourdata == NULL) | 
| 596 |  | goto fail; | 
| 597 | < | ourras = make_raster(thedisplay, &ourvis, 8, ourdata, | 
| 597 | > | ourras = make_raster(thedisplay, &ourvis, 8, (char *)ourdata, | 
| 598 |  | xmax, ymax, 8); | 
| 599 |  | if (ourras == NULL) | 
| 600 |  | goto fail; | 
| 611 |  | } | 
| 612 |  |  | 
| 613 |  |  | 
| 614 | < | getevent()                              /* process the next event */ | 
| 614 | > | static void | 
| 615 | > | getevent(void)                          /* process the next event */ | 
| 616 |  | { | 
| 617 |  | XEvent xev; | 
| 618 |  |  | 
| 629 |  | map_rcolors(ourras, wind); | 
| 630 |  | if (fast) | 
| 631 |  | make_rpixmap(ourras, wind); | 
| 632 | < | if (!sequential & parent < 0 & sigrecv == 0) { | 
| 632 | > | if ((!sequential) & (parent < 0) & (sigrecv == 0)) { | 
| 633 |  | kill(getppid(), SIGCONT); | 
| 634 |  | sigrecv--; | 
| 635 |  | } | 
| 667 |  | } | 
| 668 |  |  | 
| 669 |  |  | 
| 670 | < | traceray(xpos, ypos)                    /* print requested pixel data */ | 
| 671 | < | int  xpos, ypos; | 
| 670 | > | static int | 
| 671 | > | traceray(                       /* print requested pixel data */ | 
| 672 | > | int  xpos, | 
| 673 | > | int  ypos | 
| 674 | > | ) | 
| 675 |  | { | 
| 676 | < | extern char  *index(); | 
| 633 | < | FLOAT  hv[2]; | 
| 676 | > | RREAL  hv[2]; | 
| 677 |  | FVECT  rorg, rdir; | 
| 678 |  | COLOR  cval; | 
| 679 | < | register char  *cp; | 
| 679 | > | char  *cp; | 
| 680 |  |  | 
| 681 | < | box.xmin = xpos; box.xsiz = 1; | 
| 682 | < | box.ymin = ypos; box.ysiz = 1; | 
| 681 | > | bbox.xmin = xpos; bbox.xsiz = 1; | 
| 682 | > | bbox.ymin = ypos; bbox.ysiz = 1; | 
| 683 |  | avgbox(cval); | 
| 684 |  | scalecolor(cval, 1./exposure); | 
| 685 |  | pix2loc(hv, &inpres, xpos-xoff, ypos-yoff); | 
| 713 |  | } | 
| 714 |  |  | 
| 715 |  |  | 
| 716 | < | docom(ekey)                             /* execute command */ | 
| 717 | < | XKeyPressedEvent  *ekey; | 
| 716 | > | static int | 
| 717 | > | docom(                          /* execute command */ | 
| 718 | > | XKeyPressedEvent  *ekey | 
| 719 | > | ) | 
| 720 |  | { | 
| 721 |  | char  buf[80]; | 
| 722 |  | COLOR  cval; | 
| 723 |  | XColor  cvx; | 
| 724 |  | int  com, n; | 
| 725 |  | double  comp; | 
| 726 | < | FLOAT  hv[2]; | 
| 726 | > | RREAL  hv[2]; | 
| 727 |  |  | 
| 728 |  | n = XLookupString(ekey, buf, sizeof(buf), NULL, NULL); | 
| 729 |  | if (n == 0) | 
| 746 |  | sprintf(buf, "%.3f", intens(cval)/exposure); | 
| 747 |  | break; | 
| 748 |  | case 'l':                               /* luminance */ | 
| 749 | < | sprintf(buf, "%.0fL", luminance(cval)/exposure); | 
| 749 | > | sprintf(buf, "%.1fL", luminance(cval)/exposure); | 
| 750 |  | break; | 
| 751 |  | case 'c':                               /* color */ | 
| 752 |  | comp = pow(2.0, (double)scale); | 
| 757 |  | break; | 
| 758 |  | } | 
| 759 |  | XDrawImageString(thedisplay, wind, ourgc, | 
| 760 | < | box.xmin, box.ymin+box.ysiz, buf, strlen(buf)); | 
| 760 | > | bbox.xmin, bbox.ymin+bbox.ysiz, buf, strlen(buf)); | 
| 761 |  | return(0); | 
| 762 |  | case 'i':                               /* identify (contour) */ | 
| 763 |  | if (ourras->pixels == NULL) | 
| 819 |  | sprintf(buf, "%+d", scale); | 
| 820 |  | remap: | 
| 821 |  | XDrawImageString(thedisplay, wind, ourgc, | 
| 822 | < | box.xmin, box.ymin+box.ysiz, buf, strlen(buf)); | 
| 822 | > | bbox.xmin, bbox.ymin+bbox.ysiz, buf, strlen(buf)); | 
| 823 |  | XFlush(thedisplay); | 
| 824 | < | free(ourdata); | 
| 824 | > | /* free(ourdata);       This is done in XDestroyImage()! */ | 
| 825 |  | free_raster(ourras); | 
| 826 |  | getras(); | 
| 827 |  | /* fall through */ | 
| 843 |  | free_rpixmap(ourras); | 
| 844 |  | return(0); | 
| 845 |  | case '0':                               /* recenter origin */ | 
| 846 | < | if (xoff == 0 & yoff == 0) | 
| 846 | > | if ((xoff == 0) & (yoff == 0)) | 
| 847 |  | return(0); | 
| 848 |  | xoff = yoff = 0; | 
| 849 |  | XClearWindow(thedisplay, wind); | 
| 850 |  | redraw(0, 0, width, height); | 
| 851 |  | return(0); | 
| 852 |  | case ' ':                               /* clear */ | 
| 853 | < | redraw(box.xmin, box.ymin, box.xsiz, box.ysiz); | 
| 853 | > | redraw(bbox.xmin, bbox.ymin, bbox.xsiz, bbox.ysiz); | 
| 854 |  | return(0); | 
| 855 |  | default: | 
| 856 |  | XBell(thedisplay, 0); | 
| 859 |  | } | 
| 860 |  |  | 
| 861 |  |  | 
| 862 | < | moveimage(ebut)                         /* shift the image */ | 
| 863 | < | XButtonPressedEvent  *ebut; | 
| 862 | > | static void | 
| 863 | > | moveimage(                              /* shift the image */ | 
| 864 | > | XButtonPressedEvent  *ebut | 
| 865 | > | ) | 
| 866 |  | { | 
| 867 |  | XEvent  e; | 
| 868 |  | int     mxo, myo; | 
| 886 |  | } | 
| 887 |  |  | 
| 888 |  |  | 
| 889 | < | getbox(ebut)                            /* get new box */ | 
| 890 | < | XButtonPressedEvent  *ebut; | 
| 889 | > | static void | 
| 890 | > | getbox(                         /* get new bbox */ | 
| 891 | > | XButtonPressedEvent  *ebut | 
| 892 | > | ) | 
| 893 |  | { | 
| 894 |  | XEvent  e; | 
| 895 |  |  | 
| 896 |  | XMaskEvent(thedisplay, ButtonReleaseMask|ButtonMotionMask, &e); | 
| 897 |  | while (e.type == MotionNotify) { | 
| 898 | < | revbox(ebut->x, ebut->y, box.xmin = e.xmotion.x, box.ymin = e.xmotion.y); | 
| 898 | > | revbox(ebut->x, ebut->y, bbox.xmin = e.xmotion.x, bbox.ymin = e.xmotion.y); | 
| 899 |  | XMaskEvent(thedisplay,ButtonReleaseMask|ButtonMotionMask,&e); | 
| 900 | < | revbox(ebut->x, ebut->y, box.xmin, box.ymin); | 
| 900 | > | revbox(ebut->x, ebut->y, bbox.xmin, bbox.ymin); | 
| 901 |  | } | 
| 902 | < | box.xmin = e.xbutton.x<0 ? 0 : (e.xbutton.x>=width ? width-1 : e.xbutton.x); | 
| 903 | < | box.ymin = e.xbutton.y<0 ? 0 : (e.xbutton.y>=height ? height-1 : e.xbutton.y); | 
| 904 | < | if (box.xmin > ebut->x) { | 
| 905 | < | box.xsiz = box.xmin - ebut->x + 1; | 
| 906 | < | box.xmin = ebut->x; | 
| 902 | > | bbox.xmin = e.xbutton.x<0 ? 0 : (e.xbutton.x>=width ? width-1 : e.xbutton.x); | 
| 903 | > | bbox.ymin = e.xbutton.y<0 ? 0 : (e.xbutton.y>=height ? height-1 : e.xbutton.y); | 
| 904 | > | if (bbox.xmin > ebut->x) { | 
| 905 | > | bbox.xsiz = bbox.xmin - ebut->x + 1; | 
| 906 | > | bbox.xmin = ebut->x; | 
| 907 |  | } else { | 
| 908 | < | box.xsiz = ebut->x - box.xmin + 1; | 
| 908 | > | bbox.xsiz = ebut->x - bbox.xmin + 1; | 
| 909 |  | } | 
| 910 | < | if (box.ymin > ebut->y) { | 
| 911 | < | box.ysiz = box.ymin - ebut->y + 1; | 
| 912 | < | box.ymin = ebut->y; | 
| 910 | > | if (bbox.ymin > ebut->y) { | 
| 911 | > | bbox.ysiz = bbox.ymin - ebut->y + 1; | 
| 912 | > | bbox.ymin = ebut->y; | 
| 913 |  | } else { | 
| 914 | < | box.ysiz = ebut->y - box.ymin + 1; | 
| 914 | > | bbox.ysiz = ebut->y - bbox.ymin + 1; | 
| 915 |  | } | 
| 916 |  | } | 
| 917 |  |  | 
| 918 |  |  | 
| 919 | < | trackrays(ebut)                         /* trace rays as mouse moves */ | 
| 920 | < | XButtonPressedEvent  *ebut; | 
| 919 | > | static void | 
| 920 | > | trackrays(                              /* trace rays as mouse moves */ | 
| 921 | > | XButtonPressedEvent  *ebut | 
| 922 | > | ) | 
| 923 |  | { | 
| 924 |  | XEvent  e; | 
| 925 |  | unsigned long   lastrept; | 
| 937 |  | } | 
| 938 |  |  | 
| 939 |  |  | 
| 940 | < | revbox(x0, y0, x1, y1)                  /* draw box with reversed lines */ | 
| 941 | < | int  x0, y0, x1, y1; | 
| 940 | > | static void | 
| 941 | > | revbox(                 /* draw bbox with reversed lines */ | 
| 942 | > | int  x0, | 
| 943 | > | int  y0, | 
| 944 | > | int  x1, | 
| 945 | > | int  y1 | 
| 946 | > | ) | 
| 947 |  | { | 
| 948 |  | revline(x0, y0, x1, y0); | 
| 949 |  | revline(x0, y1, x1, y1); | 
| 952 |  | } | 
| 953 |  |  | 
| 954 |  |  | 
| 955 | < | int | 
| 956 | < | colavg(scn, n, cavg) | 
| 957 | < | register COLR   *scn; | 
| 958 | < | register int    n; | 
| 959 | < | COLOR   cavg; | 
| 955 | > | static void | 
| 956 | > | colavg( | 
| 957 | > | COLR    *scn, | 
| 958 | > | int     n, | 
| 959 | > | void *cavg | 
| 960 | > | ) | 
| 961 |  | { | 
| 962 |  | COLOR   col; | 
| 963 |  |  | 
| 964 |  | while (n--) { | 
| 965 | < | colr_color(col, scn++); | 
| 966 | < | addcolor(cavg, col); | 
| 965 | > | colr_color(col, *scn); | 
| 966 | > | addcolor((COLORV*)cavg, col); | 
| 967 | > | scn++; | 
| 968 |  | } | 
| 969 |  | } | 
| 970 |  |  | 
| 971 |  |  | 
| 972 | < | int | 
| 973 | < | avgbox(cavg)                            /* average color over current box */ | 
| 974 | < | COLOR   cavg; | 
| 972 | > | static int | 
| 973 | > | avgbox(                         /* average color over current bbox */ | 
| 974 | > | COLOR   cavg | 
| 975 | > | ) | 
| 976 |  | { | 
| 977 |  | double  d; | 
| 978 | < | register int    rval; | 
| 978 | > | int     rval; | 
| 979 |  |  | 
| 980 |  | setcolor(cavg, 0., 0., 0.); | 
| 981 | < | rval = dobox(colavg, (char *)cavg); | 
| 981 | > | rval = dobox(colavg, cavg); | 
| 982 |  | if (rval > 0) { | 
| 983 |  | d = 1./rval; | 
| 984 |  | scalecolor(cavg, d); | 
| 987 |  | } | 
| 988 |  |  | 
| 989 |  |  | 
| 990 | < | int | 
| 991 | < | dobox(f, p)                             /* run function over box */ | 
| 992 | < | int     (*f)();                 /* function to call for each subscan */ | 
| 993 | < | char    *p;                     /* pointer to private data */ | 
| 990 | > | static int | 
| 991 | > | dobox(                          /* run function over bbox */ | 
| 992 | > | doboxf_t *f,                    /* function to call for each subscan */ | 
| 993 | > | void    *p                      /* pointer to private data */ | 
| 994 | > | ) | 
| 995 |  | { | 
| 996 |  | int  left, right, top, bottom; | 
| 997 |  | int  y; | 
| 998 |  |  | 
| 999 | < | left = box.xmin - xoff; | 
| 1000 | < | right = left + box.xsiz; | 
| 999 | > | left = bbox.xmin - xoff; | 
| 1000 | > | right = left + bbox.xsiz; | 
| 1001 |  | if (left < 0) | 
| 1002 |  | left = 0; | 
| 1003 |  | if (right > xmax) | 
| 1004 |  | right = xmax; | 
| 1005 |  | if (left >= right) | 
| 1006 |  | return(0); | 
| 1007 | < | top = box.ymin - yoff; | 
| 1008 | < | bottom = top + box.ysiz; | 
| 1007 | > | top = bbox.ymin - yoff; | 
| 1008 | > | bottom = top + bbox.ysiz; | 
| 1009 |  | if (top < 0) | 
| 1010 |  | top = 0; | 
| 1011 |  | if (bottom > ymax) | 
| 1013 |  | if (top >= bottom) | 
| 1014 |  | return(0); | 
| 1015 |  | for (y = top; y < bottom; y++) { | 
| 1016 | < | if (getscan(y) == -1) | 
| 1016 | > | if (getscan(y) < 0) | 
| 1017 |  | return(-1); | 
| 1018 |  | (*f)(scanline+left, right-left, p); | 
| 1019 |  | } | 
| 1021 |  | } | 
| 1022 |  |  | 
| 1023 |  |  | 
| 1024 | < | int | 
| 1025 | < | addfix(scn, n)                  /* add fixation points to histogram */ | 
| 1026 | < | COLR    *scn; | 
| 1027 | < | int     n; | 
| 1024 | > | static void | 
| 1025 | > | addfix(                 /* add fixation points to histogram */ | 
| 1026 | > | COLR    *scn, | 
| 1027 | > | int     n, | 
| 1028 | > | void    *p | 
| 1029 | > | ) | 
| 1030 |  | { | 
| 1031 | < | if (tmCvColrs(lscan, TM_NOCHROM, scn, n)) | 
| 1031 | > | TMstruct *      tms = (TMstruct *)p; | 
| 1032 | > |  | 
| 1033 | > | if (tmCvColrs(tms, lscan, TM_NOCHROM, scn, n)) | 
| 1034 |  | goto tmerr; | 
| 1035 | < | if (tmAddHisto(lscan, n, FIXWEIGHT)) | 
| 1035 | > | if (tmAddHisto(tms, lscan, n, FIXWEIGHT)) | 
| 1036 |  | goto tmerr; | 
| 1037 |  | return; | 
| 1038 |  | tmerr: | 
| 1040 |  | } | 
| 1041 |  |  | 
| 1042 |  |  | 
| 1043 | < | make_tonemap()                  /* initialize tone mapping */ | 
| 1043 | > | static void | 
| 1044 | > | make_tonemap(void)                      /* initialize tone mapping */ | 
| 1045 |  | { | 
| 1046 |  | int  flags, y; | 
| 1047 |  |  | 
| 1056 |  | } | 
| 1057 |  | flags = tmflags;                /* histogram adjustment */ | 
| 1058 |  | if (greyscale) flags |= TM_F_BW; | 
| 1059 | < | if (tmTop != NULL) {            /* reuse old histogram if one */ | 
| 1060 | < | tmDone(tmTop); | 
| 1061 | < | tmTop->flags = flags; | 
| 1059 | > | if (tmGlobal != NULL) {         /* reuse old histogram if one */ | 
| 1060 | > | tmDone(tmCurrent); tmCurrent = NULL; | 
| 1061 | > | tmGlobal->flags = flags; | 
| 1062 |  | } else {                        /* else initialize */ | 
| 1063 |  | if ((lscan = (TMbright *)malloc(xmax*sizeof(TMbright))) == NULL) | 
| 1064 |  | goto memerr; | 
| 1065 |  | if (greyscale) { | 
| 1066 |  | cscan = TM_NOCHROM; | 
| 1067 | < | if ((pscan = (BYTE *)malloc(sizeof(BYTE)*xmax)) == NULL) | 
| 1067 | > | if ((pscan = (uby8 *)malloc(sizeof(uby8)*xmax)) == NULL) | 
| 1068 |  | goto memerr; | 
| 1069 | < | } else if ((pscan=cscan = (BYTE *)malloc(3*sizeof(BYTE)*xmax)) | 
| 1069 | > | } else if ((pscan=cscan = (uby8 *)malloc(3*sizeof(uby8)*xmax)) | 
| 1070 |  | == NULL) | 
| 1071 |  | goto memerr; | 
| 1072 |  | /* initialize tm library */ | 
| 1073 | < | if (tmInit(flags, stdprims, gamcor) == NULL) | 
| 1073 | > | tmGlobal = tmInit(flags, stdprims, gamcor); | 
| 1074 | > | if (tmGlobal == NULL) | 
| 1075 |  | goto memerr; | 
| 1076 | < | if (tmSetSpace(stdprims, WHTEFFICACY/exposure)) | 
| 1076 | > | if (tmSetSpace(tmGlobal, stdprims, WHTEFFICACY/exposure)) | 
| 1077 |  | goto tmerr; | 
| 1078 |  | /* compute picture histogram */ | 
| 1079 |  | for (y = 0; y < ymax; y++) { | 
| 1080 |  | getscan(y); | 
| 1081 | < | if (tmCvColrs(lscan, TM_NOCHROM, scanline, xmax)) | 
| 1081 | > | if (tmCvColrs(tmGlobal, lscan, TM_NOCHROM, | 
| 1082 | > | scanline, xmax)) | 
| 1083 |  | goto tmerr; | 
| 1084 | < | if (tmAddHisto(lscan, xmax, 1)) | 
| 1084 | > | if (tmAddHisto(tmGlobal, lscan, xmax, 1)) | 
| 1085 |  | goto tmerr; | 
| 1086 |  | } | 
| 1087 |  | } | 
| 1088 | < | tmDup();                        /* add fixations to duplicate map */ | 
| 1089 | < | dobox(addfix, NULL); | 
| 1088 | > | tmCurrent = tmDup(tmGlobal);    /* add fixations to duplicate map */ | 
| 1089 | > | dobox(addfix, tmCurrent); | 
| 1090 |  | /* (re)compute tone mapping */ | 
| 1091 | < | if (tmComputeMapping(gamcor, 0., 0.)) | 
| 1091 | > | if (tmComputeMapping(tmCurrent, gamcor, 0., 0.)) | 
| 1092 |  | goto tmerr; | 
| 1093 |  | return; | 
| 1094 |  | memerr: | 
| 1098 |  | } | 
| 1099 |  |  | 
| 1100 |  |  | 
| 1101 | < | tmap_colrs(scn, len)            /* apply tone mapping to scanline */ | 
| 1102 | < | register COLR  *scn; | 
| 1103 | < | int  len; | 
| 1101 | > | static void | 
| 1102 | > | tmap_colrs(             /* apply tone mapping to scanline */ | 
| 1103 | > | COLR  *scn, | 
| 1104 | > | int  len | 
| 1105 | > | ) | 
| 1106 |  | { | 
| 1107 | < | register BYTE  *ps; | 
| 1107 | > | uby8  *ps; | 
| 1108 |  |  | 
| 1109 |  | if (tmflags == TM_F_LINEAR) { | 
| 1110 |  | if (scale) | 
| 1114 |  | } | 
| 1115 |  | if (len > xmax) | 
| 1116 |  | quiterr("code error 1 in tmap_colrs"); | 
| 1117 | < | if (tmCvColrs(lscan, cscan, scn, len)) | 
| 1117 | > | if (tmCvColrs(tmCurrent, lscan, cscan, scn, len)) | 
| 1118 |  | goto tmerr; | 
| 1119 | < | if (tmMapPixels(pscan, lscan, cscan, len)) | 
| 1119 | > | if (tmMapPixels(tmCurrent, pscan, lscan, cscan, len)) | 
| 1120 |  | goto tmerr; | 
| 1121 |  | ps = pscan; | 
| 1122 |  | if (greyscale) | 
| 1139 |  | } | 
| 1140 |  |  | 
| 1141 |  |  | 
| 1142 | < | getmono()                       /* get monochrome data */ | 
| 1142 | > | static void | 
| 1143 | > | getmono(void)                   /* get monochrome data */ | 
| 1144 |  | { | 
| 1145 | < | register unsigned char  *dp; | 
| 1146 | < | register int    x, err; | 
| 1145 | > | unsigned char   *dp; | 
| 1146 | > | int     x, err; | 
| 1147 |  | int     y, errp; | 
| 1148 |  | short   *cerr; | 
| 1149 |  |  | 
| 1168 |  | cerr[x] = err + errp; | 
| 1169 |  | } | 
| 1170 |  | } | 
| 1171 | < | free((char *)cerr); | 
| 1171 | > | free(cerr); | 
| 1172 |  | } | 
| 1173 |  |  | 
| 1174 |  |  | 
| 1175 | < | add2icon(y, scan)               /* add a scanline to our icon data */ | 
| 1176 | < | int  y; | 
| 1177 | < | COLR  *scan; | 
| 1175 | > | static void | 
| 1176 | > | add2icon(               /* add a scanline to our icon data */ | 
| 1177 | > | int  y, | 
| 1178 | > | COLR  *scan | 
| 1179 | > | ) | 
| 1180 |  | { | 
| 1181 |  | static short  cerr[ICONSIZ]; | 
| 1182 |  | static int  ynext; | 
| 1183 |  | static char  *dp; | 
| 1184 |  | COLR  clr; | 
| 1185 | < | register int  err; | 
| 1186 | < | register int    x, ti; | 
| 1185 | > | int  err; | 
| 1186 | > | int     x, ti; | 
| 1187 |  | int  errp; | 
| 1188 |  |  | 
| 1189 |  | if (iconheight == 0) {          /* initialize */ | 
| 1213 |  | errp = err; | 
| 1214 |  | ti = x*xmax/iconwidth; | 
| 1215 |  | copycolr(clr, scan[ti]); | 
| 1216 | < | normcolrs(clr, 1, scale); | 
| 1216 | > | normcolrs(&clr, 1, scale); | 
| 1217 |  | err += normbright(clr) + cerr[x]; | 
| 1218 |  | if (err > 127) | 
| 1219 |  | err -= 255; | 
| 1226 |  | } | 
| 1227 |  |  | 
| 1228 |  |  | 
| 1229 | < | getfull()                       /* get full (24-bit) data */ | 
| 1229 | > | static void | 
| 1230 | > | getfull(void)                   /* get full (24-bit) data */ | 
| 1231 |  | { | 
| 1232 |  | int     y; | 
| 1233 | < | register unsigned int4  *dp; | 
| 1234 | < | register int    x; | 
| 1233 | > | uint32  *dp; | 
| 1234 | > | uint16  *dph; | 
| 1235 | > | int     x; | 
| 1236 |  | /* initialize tone mapping */ | 
| 1237 |  | make_tonemap(); | 
| 1238 |  | /* read and convert file */ | 
| 1239 | < | dp = (unsigned int4 *)ourdata; | 
| 1239 | > | dp = (uint32 *)ourdata; | 
| 1240 | > | dph = (uint16 *)ourdata; | 
| 1241 |  | for (y = 0; y < ymax; y++) { | 
| 1242 |  | getscan(y); | 
| 1243 |  | add2icon(y, scanline); | 
| 1244 |  | tmap_colrs(scanline, xmax); | 
| 1245 | < | if (ourras->image->blue_mask & 1) | 
| 1245 | > | switch (ourras->image->blue_mask) { | 
| 1246 | > | case 0xff:              /* 24-bit RGB */ | 
| 1247 |  | for (x = 0; x < xmax; x++) | 
| 1248 | < | *dp++ = (unsigned int4)scanline[x][RED] << 16 | | 
| 1249 | < | (unsigned int4)scanline[x][GRN] << 8 | | 
| 1250 | < | (unsigned int4)scanline[x][BLU] ; | 
| 1251 | < | else | 
| 1248 | > | *dp++ = (uint32)scanline[x][RED] << 16 | | 
| 1249 | > | (uint32)scanline[x][GRN] << 8 | | 
| 1250 | > | (uint32)scanline[x][BLU] ; | 
| 1251 | > | break; | 
| 1252 | > | case 0xff0000:          /* 24-bit BGR */ | 
| 1253 |  | for (x = 0; x < xmax; x++) | 
| 1254 | < | *dp++ = (unsigned int4)scanline[x][RED] | | 
| 1255 | < | (unsigned int4)scanline[x][GRN] << 8 | | 
| 1256 | < | (unsigned int4)scanline[x][BLU] << 16 ; | 
| 1254 | > | *dp++ = (uint32)scanline[x][RED] | | 
| 1255 | > | (uint32)scanline[x][GRN] << 8 | | 
| 1256 | > | (uint32)scanline[x][BLU] << 16 ; | 
| 1257 | > | break; | 
| 1258 | > | #if 0 | 
| 1259 | > | case 0x1f:              /* 15-bit RGB */ | 
| 1260 | > | for (x = 0; x < xmax; x++) | 
| 1261 | > | *dph++ =        (scanline[x][RED] << 7 & 0x7c00) | | 
| 1262 | > | (scanline[x][GRN] << 2 & 0x3e0) | | 
| 1263 | > | (unsigned)scanline[x][BLU] >> 3 ; | 
| 1264 | > | break; | 
| 1265 | > | case 0x7c00:            /* 15-bit BGR */ | 
| 1266 | > | for (x = 0; x < xmax; x++) | 
| 1267 | > | *dph++ =        (unsigned)scanline[x][RED] >> 3 | | 
| 1268 | > | (scanline[x][GRN] << 2 & 0x3e0) | | 
| 1269 | > | (scanline[x][BLU] << 7 & 0x7c00) ; | 
| 1270 | > | break; | 
| 1271 | > | #endif | 
| 1272 | > | default:                /* unknown */ | 
| 1273 | > | if (ourvis.depth > 16) | 
| 1274 | > | for (x = 0; x < xmax; x++) { | 
| 1275 | > | *dp = ourras->image->red_mask & | 
| 1276 | > | ourras->image->red_mask*scanline[x][RED]/255; | 
| 1277 | > | *dp |= ourras->image->green_mask & | 
| 1278 | > | ourras->image->green_mask*scanline[x][GRN]/255; | 
| 1279 | > | *dp++ |= ourras->image->blue_mask & | 
| 1280 | > | ourras->image->blue_mask*scanline[x][BLU]/255; | 
| 1281 | > | } | 
| 1282 | > | else | 
| 1283 | > | for (x = 0; x < xmax; x++) { | 
| 1284 | > | *dph = ourras->image->red_mask & | 
| 1285 | > | ourras->image->red_mask*scanline[x][RED]/255; | 
| 1286 | > | *dph |= ourras->image->green_mask & | 
| 1287 | > | ourras->image->green_mask*scanline[x][GRN]/255; | 
| 1288 | > | *dph++ |= ourras->image->blue_mask & | 
| 1289 | > | ourras->image->blue_mask*scanline[x][BLU]/255; | 
| 1290 | > | } | 
| 1291 | > | break; | 
| 1292 | > | } | 
| 1293 |  | } | 
| 1294 |  | } | 
| 1295 |  |  | 
| 1296 |  |  | 
| 1297 | < | getgrey()                       /* get greyscale data */ | 
| 1297 | > | static void | 
| 1298 | > | getgrey(void)                   /* get greyscale data */ | 
| 1299 |  | { | 
| 1300 |  | int     y; | 
| 1301 | < | register unsigned char  *dp; | 
| 1302 | < | register int    x; | 
| 1301 | > | unsigned char   *dp; | 
| 1302 | > | int     x; | 
| 1303 |  | /* initialize tone mapping */ | 
| 1304 |  | make_tonemap(); | 
| 1305 |  | /* read and convert file */ | 
| 1310 |  | tmap_colrs(scanline, xmax); | 
| 1311 |  | if (maxcolors < 256) | 
| 1312 |  | for (x = 0; x < xmax; x++) | 
| 1313 | < | *dp++ = ((int4)scanline[x][GRN] * | 
| 1313 | > | *dp++ = ((int32)scanline[x][GRN] * | 
| 1314 |  | maxcolors + maxcolors/2) >> 8; | 
| 1315 |  | else | 
| 1316 |  | for (x = 0; x < xmax; x++) | 
| 1318 |  | } | 
| 1319 |  | for (x = 0; x < maxcolors; x++) | 
| 1320 |  | clrtab[x][RED] = clrtab[x][GRN] = | 
| 1321 | < | clrtab[x][BLU] = ((int4)x*256 + 128)/maxcolors; | 
| 1321 | > | clrtab[x][BLU] = ((int32)x*256 + 128)/maxcolors; | 
| 1322 |  | } | 
| 1323 |  |  | 
| 1324 |  |  | 
| 1325 | < | getmapped()                     /* get color-mapped data */ | 
| 1325 | > | static void | 
| 1326 | > | getmapped(void)                 /* get color-mapped data */ | 
| 1327 |  | { | 
| 1328 |  | int     y; | 
| 1329 |  | /* make sure we can do it first */ | 
| 1332 |  | /* initialize tone mapping */ | 
| 1333 |  | make_tonemap(); | 
| 1334 |  | /* make histogram */ | 
| 1335 | < | if (new_histo((int4)xmax*ymax) == -1) | 
| 1335 | > | if (new_histo((int32)xmax*ymax) == -1) | 
| 1336 |  | quiterr("cannot initialize histogram"); | 
| 1337 |  | for (y = 0; y < ymax; y++) { | 
| 1338 |  | if (getscan(y) < 0) | 
| 1355 |  | } | 
| 1356 |  |  | 
| 1357 |  |  | 
| 1358 | < | scale_rcolors(xr, sf)                   /* scale color map */ | 
| 1359 | < | register XRASTER        *xr; | 
| 1360 | < | double  sf; | 
| 1358 | > | static void | 
| 1359 | > | scale_rcolors(                  /* scale color map */ | 
| 1360 | > | XRASTER *xr, | 
| 1361 | > | double  sf | 
| 1362 | > | ) | 
| 1363 |  | { | 
| 1364 | < | register int    i; | 
| 1364 | > | int     i; | 
| 1365 |  | long    maxv; | 
| 1366 |  |  | 
| 1367 |  | if (xr->pixels == NULL) | 
| 1385 |  | } | 
| 1386 |  |  | 
| 1387 |  |  | 
| 1388 | < | getscan(y) | 
| 1389 | < | int  y; | 
| 1388 | > | static int | 
| 1389 | > | getscan( | 
| 1390 | > | int  y | 
| 1391 | > | ) | 
| 1392 |  | { | 
| 1393 |  | static int  trunced = -1;               /* truncated file? */ | 
| 1394 |  | skipit: | 
| 1395 | < | if (trunced >= 0 && y >= trunced) { | 
| 1396 | < | bzero(scanline, xmax*sizeof(COLR)); | 
| 1395 | > | if (y == cury-1)                        /* already got it? */ | 
| 1396 | > | return(0); | 
| 1397 | > | if ((trunced >= 0) & (y >= trunced)) { | 
| 1398 | > | memset(scanline, 0, xmax*sizeof(COLR)); | 
| 1399 |  | return(-1); | 
| 1400 |  | } | 
| 1401 |  | if (y != cury) { | 
| 1402 | < | if (scanpos == NULL || scanpos[y] == -1) | 
| 1402 | > | if (scanpos == NULL || scanpos[y] < 0) | 
| 1403 |  | return(-1); | 
| 1404 | < | if (fseek(fin, scanpos[y], 0) == -1) | 
| 1404 | > | if (fseek(fin, scanpos[y], 0) < 0) | 
| 1405 |  | quiterr("fseek error"); | 
| 1406 |  | cury = y; | 
| 1407 | < | } else if (scanpos != NULL && scanpos[y] == -1) | 
| 1407 | > | } else if (scanpos != NULL && scanpos[y] < 0) | 
| 1408 |  | scanpos[y] = ftell(fin); | 
| 1409 |  |  | 
| 1410 | < | if (freadcolrs(scanline, xmax, fin) < 0) { | 
| 1410 | > | if (fread2colrs(scanline, xmax, fin, NCSAMP, WLPART) < 0) { | 
| 1411 |  | fprintf(stderr, "%s: %s: unfinished picture\n", | 
| 1412 |  | progname, fname==NULL?"<stdin>":fname); | 
| 1413 |  | trunced = y; |