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/* Copyright (c) 1990 Regents of the University of California */ |
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/* Copyright (c) 1993 Regents of the University of California */ |
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#ifndef lint |
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static char SCCSid[] = "$SunId$ LBL"; |
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#include <X11/Xlib.h> |
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#include <X11/cursorfont.h> |
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#include <X11/Xutil.h> |
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#include <X11/Xatom.h> |
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|
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#include "color.h" |
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#include "view.h" |
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#include "pic.h" |
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#include "x11raster.h" |
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#include "random.h" |
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#include "resolu.h" |
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|
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#define FONTNAME "8x13" /* text font we'll use */ |
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|
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#define CTRL(c) ('c'-'@') |
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#define CTRL(c) ((c)-'@') |
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|
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#define BORWIDTH 5 /* border width */ |
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|
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#define ICONSIZ (8*10) /* maximum icon dimension (even 8) */ |
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|
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#define ourscreen DefaultScreen(thedisplay) |
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#define ourblack BlackPixel(thedisplay,ourscreen) |
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#define ourwhite WhitePixel(thedisplay,ourscreen) |
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#define ourroot RootWindow(thedisplay,ourscreen) |
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#define ourgc DefaultGC(thedisplay,ourscreen) |
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|
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#define revline(x0,y0,x1,y1) XDrawLine(thedisplay,wind,revgc,x0,y0,x1,y1) |
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|
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int dither = 1; /* dither colors? */ |
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int fast = 0; /* keep picture in Pixmap? */ |
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|
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Window wind = 0; /* our output window */ |
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Font fontid; /* our font */ |
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char *dispname = NULL; /* our display name */ |
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|
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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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int maxcolors = 0; /* maximum colors */ |
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int greyscale = 0; /* in grey */ |
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|
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COLR *scanline; /* scan line buffer */ |
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|
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int xmax, ymax; /* picture resolution */ |
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RESOLU inpres; /* input resolution and ordering */ |
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int xmax, ymax; /* picture dimensions */ |
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int width, height; /* window size */ |
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char *fname = NULL; /* input file name */ |
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FILE *fin = stdin; /* input file */ |
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|
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double exposure = 1.0; /* exposure compensation used */ |
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|
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int wrongformat = 0; /* input in another format? */ |
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|
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GC ourgc; /* standard graphics context */ |
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GC revgc; /* graphics context with GXinvert */ |
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|
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XRASTER *ourras; /* our stored image */ |
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int *ourrank; /* our visual class ranking */ |
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XVisualInfo ourvis; /* our visual */ |
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XRASTER *ourras; /* our stored image */ |
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unsigned char *ourdata; /* our image data */ |
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struct { |
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char *geometry = NULL; /* geometry specification */ |
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|
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char icondata[ICONSIZ*ICONSIZ/8]; /* icon bitmap data */ |
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int iconwidth = 0, iconheight = 0; |
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|
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char *progname; |
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|
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char errmsg[128]; |
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|
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extern BYTE clrtab[256][3]; /* global color map */ |
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|
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extern long ftell(); |
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|
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extern char *malloc(), *calloc(); |
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|
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extern double atof(), pow(), log(); |
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|
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Display *thedisplay; |
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Atom closedownAtom, wmProtocolsAtom; |
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|
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main(argc, argv) |
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int argc; |
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char *argv[]; |
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{ |
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extern char *getenv(); |
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char *gv; |
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int headline(); |
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int i; |
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|
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progname = argv[0]; |
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if ((gv = getenv("GAMMA")) != NULL) |
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gamcor = atof(gv); |
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|
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for (i = 1; i < argc; i++) |
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if (argv[i][0] == '-') |
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maxcolors = 2; |
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break; |
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case 'd': |
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dither = !dither; |
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if (argv[i][2] == 'i') |
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dispname = argv[++i]; |
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else |
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dither = !dither; |
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break; |
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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; |
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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]; |
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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"); |
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if (fin == NULL) { |
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sprintf(errmsg, "can't open file \"%s\"", fname); |
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sprintf(errmsg, "cannot open file \"%s\"", fname); |
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quiterr(errmsg); |
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} |
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} else if (i != argc) |
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goto userr; |
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/* get header */ |
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getheader(fin, headline); |
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getheader(fin, headline, NULL); |
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/* get picture dimensions */ |
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if (fgetresolu(&xmax, &ymax, fin) != (YMAJOR|YDECR)) |
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quiterr("bad picture size"); |
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if (wrongformat || !fgetsresolu(&inpres, fin)) |
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quiterr("bad picture format"); |
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xmax = scanlen(&inpres); |
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ymax = numscans(&inpres); |
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/* set view parameters */ |
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if (gotview && setview(&ourview) != NULL) |
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gotview = 0; |
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if ((scanline = (COLR *)malloc(xmax*sizeof(COLR))) == NULL) |
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quiterr("out of memory"); |
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|
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init(); /* get file and open window */ |
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init(argc, argv); /* get file and open window */ |
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|
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for ( ; ; ) |
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getevent(); /* main loop */ |
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userr: |
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fprintf(stderr, |
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"Usage: %s [-geometry spec][-b][-m][-d][-f][-c ncolors][-e +/-stops] file\n", |
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"Usage: %s [-di disp][[-ge] spec][-b][-m][-d][-f][-c nclrs][-e +/-stops] pic\n", |
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progname); |
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quit(1); |
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> |
exit(1); |
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} |
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|
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|
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headline(s) /* get relevant info from header */ |
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char *s; |
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{ |
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static char *altname[] = {"rview","rpict","pinterp",VIEWSTR,NULL}; |
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register char **an; |
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> |
char fmt[32]; |
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|
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if (isexpos(s)) |
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exposure *= exposval(s); |
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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))) { |
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if (sscanview(&ourview, s+strlen(*an)) > 0) |
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gotview++; |
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return; |
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} |
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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 if (isview(s) && sscanview(&ourview, s) > 0) |
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gotview++; |
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} |
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init() /* get data and open window */ |
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init(argc, argv) /* get data and open window */ |
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int argc; |
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char **argv; |
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{ |
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XSetWindowAttributes ourwinattr; |
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XSizeHints oursizhints; |
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register int i; |
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XClassHint xclshints; |
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XWMHints xwmhints; |
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XSizeHints xszhints; |
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XTextProperty windowName, iconName; |
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XGCValues xgcv; |
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char *name; |
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register int i; |
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|
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if (fname != NULL) { |
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scanpos = (long *)malloc(ymax*sizeof(long)); |
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if (scanpos == NULL) |
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goto memerr; |
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quiterr("out of memory"); |
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for (i = 0; i < ymax; i++) |
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scanpos[i] = -1; |
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} |
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if ((thedisplay = XOpenDisplay(NULL)) == NULL) |
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quiterr("can't open display; DISPLAY variable set?"); |
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if (maxcolors == 0) { /* get number of available colors */ |
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i = DisplayPlanes(thedisplay,ourscreen); |
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maxcolors = i > 8 ? 256 : 1<<i; |
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if (maxcolors > 4) maxcolors -= 2; |
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} |
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name = fname; |
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} else |
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name = progname; |
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/* remove directory prefix from name */ |
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for (i = strlen(name); i-- > 0; ) |
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if (name[i] == '/') |
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break; |
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name += i+1; |
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> |
if ((thedisplay = XOpenDisplay(dispname)) == NULL) |
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> |
quiterr("cannot open display"); |
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> |
/* get best visual for default screen */ |
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> |
getbestvis(); |
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/* store image */ |
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getras(); |
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/* open window */ |
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< |
ourwinattr.border_pixel = ourblack; |
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< |
ourwinattr.background_pixel = ourwhite; |
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< |
wind = XCreateWindow(thedisplay, ourroot, 0, 0, xmax, ymax, BORWIDTH, |
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< |
0, InputOutput, ourras->visual, |
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< |
CWBackPixel|CWBorderPixel, &ourwinattr); |
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< |
if (wind == 0) |
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< |
quiterr("can't create window"); |
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< |
width = xmax; |
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< |
height = ymax; |
| 231 |
< |
fontid = XLoadFont(thedisplay, FONTNAME); |
| 232 |
< |
if (fontid == 0) |
| 233 |
< |
quiterr("can't get font"); |
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< |
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)); |
| 248 |
> |
/* get size and position */ |
| 249 |
> |
xszhints.flags = 0; |
| 250 |
> |
xszhints.width = xmax; xszhints.height = ymax; |
| 251 |
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if (geometry != NULL) { |
| 252 |
< |
bzero((char *)&oursizhints, sizeof(oursizhints)); |
| 253 |
< |
i = XParseGeometry(geometry, &oursizhints.x, &oursizhints.y, |
| 254 |
< |
(unsigned *)&oursizhints.width, |
| 244 |
< |
(unsigned *)&oursizhints.height); |
| 252 |
> |
i = XParseGeometry(geometry, &xszhints.x, &xszhints.y, |
| 253 |
> |
(unsigned *)&xszhints.width, |
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> |
(unsigned *)&xszhints.height); |
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if ((i&(WidthValue|HeightValue)) == (WidthValue|HeightValue)) |
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< |
oursizhints.flags |= USSize; |
| 257 |
< |
else { |
| 258 |
< |
oursizhints.width = xmax; |
| 249 |
< |
oursizhints.height = ymax; |
| 250 |
< |
oursizhints.flags |= PSize; |
| 251 |
< |
} |
| 256 |
> |
xszhints.flags |= USSize; |
| 257 |
> |
else |
| 258 |
> |
xszhints.flags |= PSize; |
| 259 |
|
if ((i&(XValue|YValue)) == (XValue|YValue)) { |
| 260 |
< |
oursizhints.flags |= USPosition; |
| 260 |
> |
xszhints.flags |= USPosition; |
| 261 |
|
if (i & XNegative) |
| 262 |
< |
oursizhints.x += DisplayWidth(thedisplay, |
| 263 |
< |
ourscreen)-1-oursizhints.width-2*BORWIDTH; |
| 262 |
> |
xszhints.x += DisplayWidth(thedisplay, |
| 263 |
> |
ourscreen)-1-xszhints.width-2*BORWIDTH; |
| 264 |
|
if (i & YNegative) |
| 265 |
< |
oursizhints.y += DisplayHeight(thedisplay, |
| 266 |
< |
ourscreen)-1-oursizhints.height-2*BORWIDTH; |
| 265 |
> |
xszhints.y += DisplayHeight(thedisplay, |
| 266 |
> |
ourscreen)-1-xszhints.height-2*BORWIDTH; |
| 267 |
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} |
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XSetNormalHints(thedisplay, wind, &oursizhints); |
| 268 |
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} |
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< |
XSelectInput(thedisplay, wind, ButtonPressMask|ButtonReleaseMask |
| 270 |
< |
|ButtonMotionMask|StructureNotifyMask |
| 271 |
< |
|KeyPressMask|ExposureMask); |
| 269 |
> |
/* open window */ |
| 270 |
> |
ourwinattr.border_pixel = ourwhite; |
| 271 |
> |
ourwinattr.background_pixel = ourblack; |
| 272 |
> |
ourwinattr.colormap = XCreateColormap(thedisplay, ourroot, |
| 273 |
> |
ourvis.visual, AllocNone); |
| 274 |
> |
ourwinattr.event_mask = ExposureMask|KeyPressMask|ButtonPressMask| |
| 275 |
> |
ButtonReleaseMask|ButtonMotionMask|StructureNotifyMask; |
| 276 |
> |
ourwinattr.cursor = XCreateFontCursor(thedisplay, XC_diamond_cross); |
| 277 |
> |
wind = XCreateWindow(thedisplay, ourroot, xszhints.x, xszhints.y, |
| 278 |
> |
xszhints.width, xszhints.height, BORWIDTH, |
| 279 |
> |
ourvis.depth, InputOutput, ourvis.visual, CWEventMask| |
| 280 |
> |
CWCursor|CWBackPixel|CWBorderPixel|CWColormap, &ourwinattr); |
| 281 |
> |
if (wind == 0) |
| 282 |
> |
quiterr("cannot create window"); |
| 283 |
> |
width = xmax; |
| 284 |
> |
height = ymax; |
| 285 |
> |
xgcv.foreground = ourblack; |
| 286 |
> |
xgcv.background = ourwhite; |
| 287 |
> |
if ((xgcv.font = XLoadFont(thedisplay, FONTNAME)) == 0) |
| 288 |
> |
quiterr("cannot get font"); |
| 289 |
> |
ourgc = XCreateGC(thedisplay, wind, GCForeground|GCBackground| |
| 290 |
> |
GCFont, &xgcv); |
| 291 |
> |
xgcv.function = GXinvert; |
| 292 |
> |
revgc = XCreateGC(thedisplay, wind, GCForeground|GCBackground| |
| 293 |
> |
GCFunction, &xgcv); |
| 294 |
> |
|
| 295 |
> |
/* set up the window manager */ |
| 296 |
> |
xwmhints.flags = InputHint|IconPixmapHint; |
| 297 |
> |
xwmhints.input = True; |
| 298 |
> |
xwmhints.icon_pixmap = XCreateBitmapFromData(thedisplay, |
| 299 |
> |
wind, icondata, iconwidth, iconheight); |
| 300 |
> |
|
| 301 |
> |
windowName.encoding = iconName.encoding = XA_STRING; |
| 302 |
> |
windowName.format = iconName.format = 8; |
| 303 |
> |
windowName.value = (u_char *)name; |
| 304 |
> |
windowName.nitems = strlen(windowName.value); |
| 305 |
> |
iconName.value = (u_char *)name; |
| 306 |
> |
iconName.nitems = strlen(windowName.value); |
| 307 |
> |
|
| 308 |
> |
xclshints.res_name = NULL; |
| 309 |
> |
xclshints.res_class = "Ximage"; |
| 310 |
> |
XSetWMProperties(thedisplay, wind, &windowName, &iconName, |
| 311 |
> |
argv, argc, &xszhints, &xwmhints, &xclshints); |
| 312 |
> |
closedownAtom = XInternAtom(thedisplay, "WM_DELETE_WINDOW", False); |
| 313 |
> |
wmProtocolsAtom = XInternAtom(thedisplay, "WM_PROTOCOLS", False); |
| 314 |
> |
XSetWMProtocols(thedisplay, wind, &closedownAtom, 1); |
| 315 |
> |
|
| 316 |
|
XMapWindow(thedisplay, wind); |
| 317 |
|
return; |
| 268 |
– |
memerr: |
| 269 |
– |
quiterr("out of memory"); |
| 318 |
|
} /* end of init */ |
| 319 |
|
|
| 320 |
|
|
| 329 |
|
} |
| 330 |
|
|
| 331 |
|
|
| 332 |
< |
eputs(s) |
| 333 |
< |
char *s; |
| 332 |
> |
static int |
| 333 |
> |
viscmp(v1,v2) /* compare visual to see which is better, descending */ |
| 334 |
> |
register XVisualInfo *v1, *v2; |
| 335 |
|
{ |
| 336 |
< |
fputs(s, stderr); |
| 336 |
> |
int bad1 = 0, bad2 = 0; |
| 337 |
> |
register int *rp; |
| 338 |
> |
|
| 339 |
> |
if (v1->class == v2->class) { |
| 340 |
> |
if (v1->class == TrueColor || v1->class == DirectColor) { |
| 341 |
> |
/* prefer 24-bit to 32-bit */ |
| 342 |
> |
if (v1->depth == 24 && v2->depth == 32) |
| 343 |
> |
return(-1); |
| 344 |
> |
if (v1->depth == 32 && v2->depth == 24) |
| 345 |
> |
return(1); |
| 346 |
> |
return(0); |
| 347 |
> |
} |
| 348 |
> |
/* don't be too greedy */ |
| 349 |
> |
if (maxcolors <= 1<<v1->depth && maxcolors <= 1<<v2->depth) |
| 350 |
> |
return(v1->depth - v2->depth); |
| 351 |
> |
return(v2->depth - v1->depth); |
| 352 |
> |
} |
| 353 |
> |
/* prefer Pseudo when < 24-bit */ |
| 354 |
> |
if ((v1->class == TrueColor || v1->class == DirectColor) && |
| 355 |
> |
v1->depth < 24) |
| 356 |
> |
bad1 = 1; |
| 357 |
> |
if ((v2->class == TrueColor || v2->class == DirectColor) && |
| 358 |
> |
v2->depth < 24) |
| 359 |
> |
bad2 = -1; |
| 360 |
> |
if (bad1 | bad2) |
| 361 |
> |
return(bad1+bad2); |
| 362 |
> |
/* otherwise, use class ranking */ |
| 363 |
> |
for (rp = ourrank; *rp != -1; rp++) { |
| 364 |
> |
if (v1->class == *rp) |
| 365 |
> |
return(-1); |
| 366 |
> |
if (v2->class == *rp) |
| 367 |
> |
return(1); |
| 368 |
> |
} |
| 369 |
> |
return(0); |
| 370 |
|
} |
| 371 |
|
|
| 372 |
|
|
| 373 |
< |
quit(code) |
| 292 |
< |
int code; |
| 373 |
> |
getbestvis() /* get the best visual for this screen */ |
| 374 |
|
{ |
| 375 |
< |
exit(code); |
| 375 |
> |
#ifdef DEBUG |
| 376 |
> |
static char vistype[][12] = { |
| 377 |
> |
"StaticGray", |
| 378 |
> |
"GrayScale", |
| 379 |
> |
"StaticColor", |
| 380 |
> |
"PseudoColor", |
| 381 |
> |
"TrueColor", |
| 382 |
> |
"DirectColor" |
| 383 |
> |
}; |
| 384 |
> |
#endif |
| 385 |
> |
static int rankings[3][6] = { |
| 386 |
> |
{TrueColor,DirectColor,PseudoColor,GrayScale,StaticGray,-1}, |
| 387 |
> |
{PseudoColor,GrayScale,StaticGray,-1}, |
| 388 |
> |
{PseudoColor,GrayScale,StaticGray,-1} |
| 389 |
> |
}; |
| 390 |
> |
XVisualInfo *xvi; |
| 391 |
> |
int vismatched; |
| 392 |
> |
register int i, j; |
| 393 |
> |
|
| 394 |
> |
if (greyscale) { |
| 395 |
> |
ourrank = rankings[2]; |
| 396 |
> |
if (maxcolors < 2) maxcolors = 256; |
| 397 |
> |
} else if (maxcolors >= 2 && maxcolors <= 256) |
| 398 |
> |
ourrank = rankings[1]; |
| 399 |
> |
else { |
| 400 |
> |
ourrank = rankings[0]; |
| 401 |
> |
maxcolors = 256; |
| 402 |
> |
} |
| 403 |
> |
/* find best visual */ |
| 404 |
> |
ourvis.screen = ourscreen; |
| 405 |
> |
xvi = XGetVisualInfo(thedisplay,VisualScreenMask,&ourvis,&vismatched); |
| 406 |
> |
if (xvi == NULL) |
| 407 |
> |
quiterr("no visuals for this screen!"); |
| 408 |
> |
#ifdef DEBUG |
| 409 |
> |
fprintf(stderr, "Supported visuals:\n"); |
| 410 |
> |
for (i = 0; i < vismatched; i++) |
| 411 |
> |
fprintf(stderr, "\ttype %s, depth %d\n", |
| 412 |
> |
vistype[xvi[i].class], xvi[i].depth); |
| 413 |
> |
#endif |
| 414 |
> |
for (i = 0, j = 1; j < vismatched; j++) |
| 415 |
> |
if (viscmp(&xvi[i],&xvi[j]) > 0) |
| 416 |
> |
i = j; |
| 417 |
> |
/* compare to least acceptable */ |
| 418 |
> |
for (j = 0; ourrank[j++] != -1; ) |
| 419 |
> |
; |
| 420 |
> |
ourvis.class = ourrank[--j]; |
| 421 |
> |
ourvis.depth = 1; |
| 422 |
> |
if (viscmp(&xvi[i],&ourvis) > 0) |
| 423 |
> |
quiterr("inadequate visuals on this screen"); |
| 424 |
> |
/* OK, we'll use it */ |
| 425 |
> |
copystruct(&ourvis, &xvi[i]); |
| 426 |
> |
#ifdef DEBUG |
| 427 |
> |
fprintf(stderr, "Selected visual type %s, depth %d\n", |
| 428 |
> |
vistype[ourvis.class], ourvis.depth); |
| 429 |
> |
#endif |
| 430 |
> |
/* make appropriate adjustments */ |
| 431 |
> |
if (ourvis.class == GrayScale || ourvis.class == StaticGray) |
| 432 |
> |
greyscale = 1; |
| 433 |
> |
if (ourvis.depth <= 8 && ourvis.colormap_size < maxcolors) |
| 434 |
> |
maxcolors = ourvis.colormap_size; |
| 435 |
> |
if (ourvis.class == StaticGray) { |
| 436 |
> |
ourblack = 0; |
| 437 |
> |
ourwhite = 255; |
| 438 |
> |
} else if (ourvis.class == PseudoColor) { |
| 439 |
> |
ourblack = BlackPixel(thedisplay,ourscreen); |
| 440 |
> |
ourwhite = WhitePixel(thedisplay,ourscreen); |
| 441 |
> |
if ((ourblack|ourwhite) & ~255L) { |
| 442 |
> |
ourblack = 0; |
| 443 |
> |
ourwhite = 1; |
| 444 |
> |
} |
| 445 |
> |
if (maxcolors > 4) |
| 446 |
> |
maxcolors -= 2; |
| 447 |
> |
} else { |
| 448 |
> |
ourblack = 0; |
| 449 |
> |
ourwhite = ourvis.red_mask|ourvis.green_mask|ourvis.blue_mask; |
| 450 |
> |
} |
| 451 |
> |
XFree((char *)xvi); |
| 452 |
|
} |
| 453 |
|
|
| 454 |
|
|
| 455 |
|
getras() /* get raster file */ |
| 456 |
|
{ |
| 300 |
– |
colormap ourmap; |
| 457 |
|
XVisualInfo vinfo; |
| 458 |
|
|
| 459 |
|
if (maxcolors <= 2) { /* monochrome */ |
| 460 |
|
ourdata = (unsigned char *)malloc(ymax*((xmax+7)/8)); |
| 461 |
|
if (ourdata == NULL) |
| 462 |
|
goto fail; |
| 463 |
< |
ourras = make_raster(thedisplay, ourscreen, 1, ourdata, |
| 463 |
> |
ourras = make_raster(thedisplay, &ourvis, 1, ourdata, |
| 464 |
|
xmax, ymax, 8); |
| 465 |
|
if (ourras == NULL) |
| 466 |
|
goto fail; |
| 467 |
|
getmono(); |
| 468 |
< |
} else if (XMatchVisualInfo(thedisplay,ourscreen,24,TrueColor,&vinfo) |
| 469 |
< |
/* kludge for DirectColor */ |
| 314 |
< |
|| XMatchVisualInfo(thedisplay,ourscreen,24,DirectColor,&vinfo)) { |
| 315 |
< |
ourdata = (unsigned char *)malloc(xmax*ymax*3); |
| 468 |
> |
} else if (ourvis.class == TrueColor | ourvis.class == DirectColor) { |
| 469 |
> |
ourdata = (unsigned char *)malloc(4*xmax*ymax); |
| 470 |
|
if (ourdata == NULL) |
| 471 |
|
goto fail; |
| 472 |
< |
ourras = make_raster(thedisplay, ourscreen, 24, ourdata, |
| 473 |
< |
xmax, ymax, 8); |
| 472 |
> |
ourras = make_raster(thedisplay, &ourvis, 32, |
| 473 |
> |
ourdata, xmax, ymax, 32); |
| 474 |
|
if (ourras == NULL) |
| 475 |
|
goto fail; |
| 476 |
|
getfull(); |
| 478 |
|
ourdata = (unsigned char *)malloc(xmax*ymax); |
| 479 |
|
if (ourdata == NULL) |
| 480 |
|
goto fail; |
| 481 |
< |
ourras = make_raster(thedisplay, ourscreen, 8, ourdata, |
| 481 |
> |
ourras = make_raster(thedisplay, &ourvis, 8, ourdata, |
| 482 |
|
xmax, ymax, 8); |
| 483 |
|
if (ourras == NULL) |
| 484 |
|
goto fail; |
| 485 |
< |
if (greyscale) |
| 486 |
< |
biq(dither,maxcolors,1,ourmap); |
| 485 |
> |
if (greyscale | ourvis.class == StaticGray) |
| 486 |
> |
getgrey(); |
| 487 |
|
else |
| 488 |
< |
ciq(dither,maxcolors,1,ourmap); |
| 489 |
< |
if (init_rcolors(ourras, ourmap[0], ourmap[1], ourmap[2]) == 0) |
| 488 |
> |
getmapped(); |
| 489 |
> |
if (ourvis.class != StaticGray && !init_rcolors(ourras,clrtab)) |
| 490 |
|
goto fail; |
| 491 |
|
} |
| 492 |
|
return; |
| 497 |
|
|
| 498 |
|
getevent() /* process the next event */ |
| 499 |
|
{ |
| 500 |
< |
union { |
| 347 |
< |
XEvent u; |
| 348 |
< |
XConfigureEvent c; |
| 349 |
< |
XExposeEvent e; |
| 350 |
< |
XButtonPressedEvent b; |
| 351 |
< |
XKeyPressedEvent k; |
| 352 |
< |
} e; |
| 500 |
> |
XEvent xev; |
| 501 |
|
|
| 502 |
< |
XNextEvent(thedisplay, &e.u); |
| 503 |
< |
switch (e.u.type) { |
| 502 |
> |
XNextEvent(thedisplay, &xev); |
| 503 |
> |
switch ((int)xev.type) { |
| 504 |
|
case KeyPress: |
| 505 |
< |
docom(&e.k); |
| 505 |
> |
docom(&xev.xkey); |
| 506 |
|
break; |
| 507 |
|
case ConfigureNotify: |
| 508 |
< |
width = e.c.width; |
| 509 |
< |
height = e.c.height; |
| 508 |
> |
width = xev.xconfigure.width; |
| 509 |
> |
height = xev.xconfigure.height; |
| 510 |
|
break; |
| 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); |
| 521 |
> |
redraw(xev.xexpose.x, xev.xexpose.y, |
| 522 |
> |
xev.xexpose.width, xev.xexpose.height); |
| 523 |
|
break; |
| 524 |
|
case ButtonPress: |
| 525 |
< |
if (e.b.state & (ShiftMask|ControlMask)) |
| 526 |
< |
moveimage(&e.b); |
| 525 |
> |
if (xev.xbutton.state & (ShiftMask|ControlMask)) |
| 526 |
> |
moveimage(&xev.xbutton); |
| 527 |
> |
else if (xev.xbutton.button == Button2) |
| 528 |
> |
traceray(xev.xbutton.x, xev.xbutton.y); |
| 529 |
|
else |
| 530 |
< |
getbox(&e.b); |
| 530 |
> |
getbox(&xev.xbutton); |
| 531 |
|
break; |
| 532 |
+ |
case ClientMessage: |
| 533 |
+ |
if ((xev.xclient.message_type == wmProtocolsAtom) && |
| 534 |
+ |
(xev.xclient.data.l[0] == closedownAtom)) |
| 535 |
+ |
quiterr(NULL); |
| 536 |
+ |
break; |
| 537 |
|
} |
| 538 |
|
} |
| 539 |
|
|
| 540 |
|
|
| 541 |
< |
docom(ekey) /* execute command */ |
| 541 |
> |
traceray(xpos, ypos) /* print ray corresponding to pixel */ |
| 542 |
> |
int xpos, ypos; |
| 543 |
> |
{ |
| 544 |
> |
FLOAT hv[2]; |
| 545 |
> |
FVECT rorg, rdir; |
| 546 |
> |
|
| 547 |
> |
if (!gotview) { /* no view, no can do */ |
| 548 |
> |
XBell(thedisplay, 0); |
| 549 |
> |
return(-1); |
| 550 |
> |
} |
| 551 |
> |
pix2loc(hv, &inpres, xpos-xoff, ypos-yoff); |
| 552 |
> |
if (viewray(rorg, rdir, &ourview, hv[0], hv[1]) < 0) |
| 553 |
> |
return(-1); |
| 554 |
> |
printf("%e %e %e ", rorg[0], rorg[1], rorg[2]); |
| 555 |
> |
printf("%e %e %e\n", rdir[0], rdir[1], rdir[2]); |
| 556 |
> |
fflush(stdout); |
| 557 |
> |
return(0); |
| 558 |
> |
} |
| 559 |
> |
|
| 560 |
> |
|
| 561 |
> |
docom(ekey) /* execute command */ |
| 562 |
|
XKeyPressedEvent *ekey; |
| 563 |
|
{ |
| 564 |
|
char buf[80]; |
| 566 |
|
XColor cvx; |
| 567 |
|
int com, n; |
| 568 |
|
double comp; |
| 569 |
< |
FVECT rorg, rdir; |
| 569 |
> |
FLOAT hv[2]; |
| 570 |
|
|
| 571 |
|
n = XLookupString(ekey, buf, sizeof(buf), NULL, NULL); |
| 572 |
|
if (n == 0) |
| 574 |
|
com = buf[0]; |
| 575 |
|
switch (com) { /* interpret command */ |
| 576 |
|
case 'q': |
| 577 |
< |
case CTRL(D): /* quit */ |
| 578 |
< |
quit(0); |
| 577 |
> |
case 'Q': |
| 578 |
> |
case CTRL('D'): /* quit */ |
| 579 |
> |
quiterr(NULL); |
| 580 |
|
case '\n': |
| 581 |
|
case '\r': |
| 582 |
|
case 'l': |
| 589 |
|
sprintf(buf, "%.3f", intens(cval)/exposure); |
| 590 |
|
break; |
| 591 |
|
case 'l': /* luminance */ |
| 592 |
< |
sprintf(buf, "%.0fn", bright(cval)*683.0/exposure); |
| 592 |
> |
sprintf(buf, "%.0fL", luminance(cval)/exposure); |
| 593 |
|
break; |
| 594 |
|
case 'c': /* color */ |
| 595 |
|
comp = pow(2.0, (double)scale); |
| 615 |
|
XStoreColor(thedisplay, ourras->cmap, &cvx); |
| 616 |
|
return(0); |
| 617 |
|
case 'p': /* position */ |
| 618 |
< |
sprintf(buf, "(%d,%d)", ekey->x-xoff, ymax-1-ekey->y+yoff); |
| 618 |
> |
pix2loc(hv, &inpres, ekey->x-xoff, ekey->y-yoff); |
| 619 |
> |
sprintf(buf, "(%d,%d)", (int)(hv[0]*inpres.xr), |
| 620 |
> |
(int)(hv[1]*inpres.yr)); |
| 621 |
|
XDrawImageString(thedisplay, wind, ourgc, ekey->x, ekey->y, |
| 622 |
|
buf, strlen(buf)); |
| 623 |
|
return(0); |
| 624 |
|
case 't': /* trace */ |
| 625 |
< |
if (!gotview) { |
| 446 |
< |
XBell(thedisplay, 0); |
| 447 |
< |
return(-1); |
| 448 |
< |
} |
| 449 |
< |
if (viewray(rorg, rdir, &ourview, |
| 450 |
< |
(ekey->x-xoff+.5)/xmax, |
| 451 |
< |
(ymax-1-ekey->y+yoff+.5)/ymax) < 0) |
| 452 |
< |
return(-1); |
| 453 |
< |
printf("%e %e %e ", rorg[0], rorg[1], rorg[2]); |
| 454 |
< |
printf("%e %e %e\n", rdir[0], rdir[1], rdir[2]); |
| 455 |
< |
fflush(stdout); |
| 456 |
< |
return(0); |
| 625 |
> |
return(traceray(ekey->x, ekey->y)); |
| 626 |
|
case '=': /* adjust exposure */ |
| 627 |
+ |
case '@': /* adaptation level */ |
| 628 |
|
if (avgbox(cval) == -1) |
| 629 |
|
return(-1); |
| 630 |
< |
n = log(.5/bright(cval))/.69315 - scale; /* truncate */ |
| 630 |
> |
comp = com=='@' |
| 631 |
> |
? 106./pow(1.219+pow(luminance(cval)/exposure,.4),2.5)/exposure |
| 632 |
> |
: .5/bright(cval) ; |
| 633 |
> |
comp = log(comp)/.69315 - scale; |
| 634 |
> |
n = comp < 0 ? comp-.5 : comp+.5 ; /* round */ |
| 635 |
|
if (n == 0) |
| 636 |
|
return(0); |
| 637 |
|
scale_rcolors(ourras, pow(2.0, (double)n)); |
| 644 |
|
free_raster(ourras); |
| 645 |
|
getras(); |
| 646 |
|
/* fall through */ |
| 647 |
< |
case CTRL(R): /* redraw */ |
| 648 |
< |
case CTRL(L): |
| 647 |
> |
case CTRL('R'): /* redraw */ |
| 648 |
> |
case CTRL('L'): |
| 649 |
|
unmap_rcolors(ourras); |
| 650 |
|
XClearWindow(thedisplay, wind); |
| 651 |
|
map_rcolors(ourras, wind); |
| 652 |
|
if (fast) |
| 653 |
< |
make_rpixmap(ourras); |
| 653 |
> |
make_rpixmap(ourras, wind); |
| 654 |
|
redraw(0, 0, width, height); |
| 655 |
|
return(0); |
| 656 |
+ |
case '0': /* recenter origin */ |
| 657 |
+ |
if (xoff == 0 & yoff == 0) |
| 658 |
+ |
return(0); |
| 659 |
+ |
xoff = yoff = 0; |
| 660 |
+ |
XClearWindow(thedisplay, wind); |
| 661 |
+ |
redraw(0, 0, width, height); |
| 662 |
+ |
return(0); |
| 663 |
|
case ' ': /* clear */ |
| 664 |
|
redraw(box.xmin, box.ymin, box.xsiz, box.ysiz); |
| 665 |
|
return(0); |
| 673 |
|
moveimage(ebut) /* shift the image */ |
| 674 |
|
XButtonPressedEvent *ebut; |
| 675 |
|
{ |
| 676 |
< |
union { |
| 496 |
< |
XEvent u; |
| 497 |
< |
XButtonReleasedEvent b; |
| 498 |
< |
XPointerMovedEvent m; |
| 499 |
< |
} e; |
| 676 |
> |
XEvent e; |
| 677 |
|
int mxo, myo; |
| 678 |
|
|
| 679 |
< |
XMaskEvent(thedisplay, ButtonReleaseMask|ButtonMotionMask, &e.u); |
| 680 |
< |
while (e.u.type == MotionNotify) { |
| 681 |
< |
mxo = e.m.x; |
| 682 |
< |
myo = e.m.y; |
| 679 |
> |
XMaskEvent(thedisplay, ButtonReleaseMask|ButtonMotionMask, &e); |
| 680 |
> |
while (e.type == MotionNotify) { |
| 681 |
> |
mxo = e.xmotion.x; |
| 682 |
> |
myo = e.xmotion.y; |
| 683 |
|
revline(ebut->x, ebut->y, mxo, myo); |
| 684 |
|
revbox(xoff+mxo-ebut->x, yoff+myo-ebut->y, |
| 685 |
|
xoff+mxo-ebut->x+xmax, yoff+myo-ebut->y+ymax); |
| 686 |
< |
XMaskEvent(thedisplay,ButtonReleaseMask|ButtonMotionMask,&e.u); |
| 686 |
> |
XMaskEvent(thedisplay,ButtonReleaseMask|ButtonMotionMask,&e); |
| 687 |
|
revline(ebut->x, ebut->y, mxo, myo); |
| 688 |
|
revbox(xoff+mxo-ebut->x, yoff+myo-ebut->y, |
| 689 |
|
xoff+mxo-ebut->x+xmax, yoff+myo-ebut->y+ymax); |
| 690 |
|
} |
| 691 |
< |
xoff += e.b.x - ebut->x; |
| 692 |
< |
yoff += e.b.y - ebut->y; |
| 691 |
> |
xoff += e.xbutton.x - ebut->x; |
| 692 |
> |
yoff += e.xbutton.y - ebut->y; |
| 693 |
|
XClearWindow(thedisplay, wind); |
| 694 |
|
redraw(0, 0, width, height); |
| 695 |
|
} |
| 698 |
|
getbox(ebut) /* get new box */ |
| 699 |
|
XButtonPressedEvent *ebut; |
| 700 |
|
{ |
| 701 |
< |
union { |
| 525 |
< |
XEvent u; |
| 526 |
< |
XButtonReleasedEvent b; |
| 527 |
< |
XPointerMovedEvent m; |
| 528 |
< |
} e; |
| 701 |
> |
XEvent e; |
| 702 |
|
|
| 703 |
< |
XMaskEvent(thedisplay, ButtonReleaseMask|ButtonMotionMask, &e.u); |
| 704 |
< |
while (e.u.type == MotionNotify) { |
| 705 |
< |
revbox(ebut->x, ebut->y, box.xmin = e.m.x, box.ymin = e.m.y); |
| 706 |
< |
XMaskEvent(thedisplay,ButtonReleaseMask|ButtonMotionMask,&e.u); |
| 703 |
> |
XMaskEvent(thedisplay, ButtonReleaseMask|ButtonMotionMask, &e); |
| 704 |
> |
while (e.type == MotionNotify) { |
| 705 |
> |
revbox(ebut->x, ebut->y, box.xmin = e.xmotion.x, box.ymin = e.xmotion.y); |
| 706 |
> |
XMaskEvent(thedisplay,ButtonReleaseMask|ButtonMotionMask,&e); |
| 707 |
|
revbox(ebut->x, ebut->y, box.xmin, box.ymin); |
| 708 |
|
} |
| 709 |
< |
box.xmin = e.b.x<0 ? 0 : (e.b.x>=width ? width-1 : e.b.x); |
| 710 |
< |
box.ymin = e.b.y<0 ? 0 : (e.b.y>=height ? height-1 : e.b.y); |
| 709 |
> |
box.xmin = e.xbutton.x<0 ? 0 : (e.xbutton.x>=width ? width-1 : e.xbutton.x); |
| 710 |
> |
box.ymin = e.xbutton.y<0 ? 0 : (e.xbutton.y>=height ? height-1 : e.xbutton.y); |
| 711 |
|
if (box.xmin > ebut->x) { |
| 712 |
|
box.xsiz = box.xmin - ebut->x + 1; |
| 713 |
|
box.xmin = ebut->x; |
| 736 |
|
avgbox(clr) /* average color over current box */ |
| 737 |
|
COLOR clr; |
| 738 |
|
{ |
| 739 |
+ |
static COLOR lc; |
| 740 |
+ |
static int ll, lr, lt, lb; |
| 741 |
|
int left, right, top, bottom; |
| 742 |
|
int y; |
| 743 |
|
double d; |
| 761 |
|
bottom = ymax; |
| 762 |
|
if (top >= bottom) |
| 763 |
|
return(-1); |
| 764 |
+ |
if (left == ll && right == lr && top == lt && bottom == lb) { |
| 765 |
+ |
copycolor(clr, lc); |
| 766 |
+ |
return(0); |
| 767 |
+ |
} |
| 768 |
|
for (y = top; y < bottom; y++) { |
| 769 |
|
if (getscan(y) == -1) |
| 770 |
|
return(-1); |
| 775 |
|
} |
| 776 |
|
d = 1.0/((right-left)*(bottom-top)); |
| 777 |
|
scalecolor(clr, d); |
| 778 |
+ |
ll = left; lr = right; lt = top; lb = bottom; |
| 779 |
+ |
copycolor(lc, clr); |
| 780 |
|
return(0); |
| 781 |
|
} |
| 782 |
|
|
| 785 |
|
{ |
| 786 |
|
register unsigned char *dp; |
| 787 |
|
register int x, err; |
| 788 |
< |
int y; |
| 788 |
> |
int y, errp; |
| 789 |
|
short *cerr; |
| 790 |
|
|
| 791 |
|
if ((cerr = (short *)calloc(xmax,sizeof(short))) == NULL) |
| 792 |
|
quiterr("out of memory in getmono"); |
| 793 |
|
dp = ourdata - 1; |
| 794 |
|
for (y = 0; y < ymax; y++) { |
| 795 |
< |
if (getscan(y) < 0) |
| 796 |
< |
quiterr("seek error in getmono"); |
| 795 |
> |
getscan(y); |
| 796 |
> |
add2icon(y, scanline); |
| 797 |
|
normcolrs(scanline, xmax, scale); |
| 798 |
|
err = 0; |
| 799 |
|
for (x = 0; x < xmax; x++) { |
| 800 |
|
if (!(x&7)) |
| 801 |
|
*++dp = 0; |
| 802 |
+ |
errp = err; |
| 803 |
|
err += normbright(scanline[x]) + cerr[x]; |
| 804 |
|
if (err > 127) |
| 805 |
|
err -= 255; |
| 806 |
|
else |
| 807 |
|
*dp |= 1<<(7-(x&07)); |
| 808 |
< |
cerr[x] = err >>= 1; |
| 808 |
> |
err /= 3; |
| 809 |
> |
cerr[x] = err + errp; |
| 810 |
|
} |
| 811 |
|
} |
| 812 |
|
free((char *)cerr); |
| 813 |
|
} |
| 814 |
|
|
| 815 |
|
|
| 816 |
+ |
add2icon(y, scan) /* add a scanline to our icon data */ |
| 817 |
+ |
int y; |
| 818 |
+ |
COLR *scan; |
| 819 |
+ |
{ |
| 820 |
+ |
static short cerr[ICONSIZ]; |
| 821 |
+ |
static int ynext; |
| 822 |
+ |
static char *dp; |
| 823 |
+ |
COLR clr; |
| 824 |
+ |
register int err; |
| 825 |
+ |
register int x, ti; |
| 826 |
+ |
int errp; |
| 827 |
+ |
|
| 828 |
+ |
if (iconheight == 0) { /* initialize */ |
| 829 |
+ |
if (xmax <= ICONSIZ && ymax <= ICONSIZ) { |
| 830 |
+ |
iconwidth = xmax; |
| 831 |
+ |
iconheight = ymax; |
| 832 |
+ |
} else if (xmax > ymax) { |
| 833 |
+ |
iconwidth = ICONSIZ; |
| 834 |
+ |
iconheight = ICONSIZ*ymax/xmax; |
| 835 |
+ |
if (iconheight < 1) |
| 836 |
+ |
iconheight = 1; |
| 837 |
+ |
} else { |
| 838 |
+ |
iconwidth = ICONSIZ*xmax/ymax; |
| 839 |
+ |
if (iconwidth < 1) |
| 840 |
+ |
iconwidth = 1; |
| 841 |
+ |
iconheight = ICONSIZ; |
| 842 |
+ |
} |
| 843 |
+ |
ynext = 0; |
| 844 |
+ |
dp = icondata - 1; |
| 845 |
+ |
} |
| 846 |
+ |
if (y < ynext*ymax/iconheight) /* skip this one */ |
| 847 |
+ |
return; |
| 848 |
+ |
err = 0; |
| 849 |
+ |
for (x = 0; x < iconwidth; x++) { |
| 850 |
+ |
if (!(x&7)) |
| 851 |
+ |
*++dp = 0; |
| 852 |
+ |
errp = err; |
| 853 |
+ |
ti = x*xmax/iconwidth; |
| 854 |
+ |
copycolr(clr, scan[ti]); |
| 855 |
+ |
normcolrs(clr, 1, scale); |
| 856 |
+ |
err += normbright(clr) + cerr[x]; |
| 857 |
+ |
if (err > 127) |
| 858 |
+ |
err -= 255; |
| 859 |
+ |
else |
| 860 |
+ |
*dp |= 1<<(x&07); |
| 861 |
+ |
err /= 3; |
| 862 |
+ |
cerr[x] = err + errp; |
| 863 |
+ |
} |
| 864 |
+ |
ynext++; |
| 865 |
+ |
} |
| 866 |
+ |
|
| 867 |
+ |
|
| 868 |
|
getfull() /* get full (24-bit) data */ |
| 869 |
|
{ |
| 870 |
|
int y; |
| 871 |
+ |
register unsigned long *dp; |
| 872 |
+ |
register int x; |
| 873 |
+ |
/* set gamma correction */ |
| 874 |
+ |
setcolrgam(gamcor); |
| 875 |
+ |
/* read and convert file */ |
| 876 |
+ |
dp = (unsigned long *)ourdata; |
| 877 |
+ |
for (y = 0; y < ymax; y++) { |
| 878 |
+ |
getscan(y); |
| 879 |
+ |
add2icon(y, scanline); |
| 880 |
+ |
if (scale) |
| 881 |
+ |
shiftcolrs(scanline, xmax, scale); |
| 882 |
+ |
colrs_gambs(scanline, xmax); |
| 883 |
+ |
if (ourras->image->blue_mask & 1) |
| 884 |
+ |
for (x = 0; x < xmax; x++) |
| 885 |
+ |
*dp++ = scanline[x][RED] << 16 | |
| 886 |
+ |
scanline[x][GRN] << 8 | |
| 887 |
+ |
scanline[x][BLU] ; |
| 888 |
+ |
else |
| 889 |
+ |
for (x = 0; x < xmax; x++) |
| 890 |
+ |
*dp++ = scanline[x][RED] | |
| 891 |
+ |
scanline[x][GRN] << 8 | |
| 892 |
+ |
scanline[x][BLU] << 16 ; |
| 893 |
+ |
} |
| 894 |
+ |
} |
| 895 |
+ |
|
| 896 |
+ |
|
| 897 |
+ |
getgrey() /* get greyscale data */ |
| 898 |
+ |
{ |
| 899 |
+ |
int y; |
| 900 |
|
register unsigned char *dp; |
| 901 |
|
register int x; |
| 902 |
|
/* set gamma correction */ |
| 904 |
|
/* read and convert file */ |
| 905 |
|
dp = ourdata; |
| 906 |
|
for (y = 0; y < ymax; y++) { |
| 907 |
+ |
getscan(y); |
| 908 |
+ |
add2icon(y, scanline); |
| 909 |
+ |
if (scale) |
| 910 |
+ |
shiftcolrs(scanline, xmax, scale); |
| 911 |
+ |
for (x = 0; x < xmax; x++) |
| 912 |
+ |
scanline[x][GRN] = normbright(scanline[x]); |
| 913 |
+ |
colrs_gambs(scanline, xmax); |
| 914 |
+ |
if (maxcolors < 256) |
| 915 |
+ |
for (x = 0; x < xmax; x++) |
| 916 |
+ |
*dp++ = ((long)scanline[x][GRN] * |
| 917 |
+ |
maxcolors + maxcolors/2) >> 8; |
| 918 |
+ |
else |
| 919 |
+ |
for (x = 0; x < xmax; x++) |
| 920 |
+ |
*dp++ = scanline[x][GRN]; |
| 921 |
+ |
} |
| 922 |
+ |
for (x = 0; x < maxcolors; x++) |
| 923 |
+ |
clrtab[x][RED] = clrtab[x][GRN] = |
| 924 |
+ |
clrtab[x][BLU] = ((long)x*256 + 128)/maxcolors; |
| 925 |
+ |
} |
| 926 |
+ |
|
| 927 |
+ |
|
| 928 |
+ |
getmapped() /* get color-mapped data */ |
| 929 |
+ |
{ |
| 930 |
+ |
int y; |
| 931 |
+ |
/* set gamma correction */ |
| 932 |
+ |
setcolrgam(gamcor); |
| 933 |
+ |
/* make histogram */ |
| 934 |
+ |
new_histo(); |
| 935 |
+ |
for (y = 0; y < ymax; y++) { |
| 936 |
|
if (getscan(y) < 0) |
| 937 |
< |
quiterr("seek error in getfull"); |
| 937 |
> |
quiterr("seek error in getmapped"); |
| 938 |
> |
add2icon(y, scanline); |
| 939 |
|
if (scale) |
| 940 |
|
shiftcolrs(scanline, xmax, scale); |
| 941 |
|
colrs_gambs(scanline, xmax); |
| 942 |
< |
for (x = 0; x < xmax; x++) { |
| 649 |
< |
*dp++ = scanline[x][RED]; |
| 650 |
< |
*dp++ = scanline[x][GRN]; |
| 651 |
< |
*dp++ = scanline[x][BLU]; |
| 652 |
< |
} |
| 942 |
> |
cnt_colrs(scanline, xmax); |
| 943 |
|
} |
| 944 |
+ |
/* map pixels */ |
| 945 |
+ |
if (!new_clrtab(maxcolors)) |
| 946 |
+ |
quiterr("cannot create color map"); |
| 947 |
+ |
for (y = 0; y < ymax; y++) { |
| 948 |
+ |
if (getscan(y) < 0) |
| 949 |
+ |
quiterr("seek error in getmapped"); |
| 950 |
+ |
if (scale) |
| 951 |
+ |
shiftcolrs(scanline, xmax, scale); |
| 952 |
+ |
colrs_gambs(scanline, xmax); |
| 953 |
+ |
if (dither) |
| 954 |
+ |
dith_colrs(ourdata+y*xmax, scanline, xmax); |
| 955 |
+ |
else |
| 956 |
+ |
map_colrs(ourdata+y*xmax, scanline, xmax); |
| 957 |
+ |
} |
| 958 |
|
} |
| 959 |
|
|
| 960 |
|
|
| 995 |
|
if (fseek(fin, scanpos[y], 0) == -1) |
| 996 |
|
quiterr("fseek error"); |
| 997 |
|
cury = y; |
| 998 |
< |
} else if (scanpos != NULL) |
| 998 |
> |
} else if (scanpos != NULL && scanpos[y] == -1) |
| 999 |
|
scanpos[y] = ftell(fin); |
| 1000 |
|
|
| 1001 |
|
if (freadcolrs(scanline, xmax, fin) < 0) |
| 1003 |
|
|
| 1004 |
|
cury++; |
| 1005 |
|
return(0); |
| 702 |
– |
} |
| 703 |
– |
|
| 704 |
– |
|
| 705 |
– |
picreadline3(y, l3) /* read in 3-byte scanline */ |
| 706 |
– |
int y; |
| 707 |
– |
register rgbpixel *l3; |
| 708 |
– |
{ |
| 709 |
– |
register int i; |
| 710 |
– |
/* read scanline */ |
| 711 |
– |
if (getscan(y) < 0) |
| 712 |
– |
quiterr("cannot seek for picreadline"); |
| 713 |
– |
/* convert scanline */ |
| 714 |
– |
normcolrs(scanline, xmax, scale); |
| 715 |
– |
for (i = 0; i < xmax; i++) { |
| 716 |
– |
l3[i].r = scanline[i][RED]; |
| 717 |
– |
l3[i].g = scanline[i][GRN]; |
| 718 |
– |
l3[i].b = scanline[i][BLU]; |
| 719 |
– |
} |
| 720 |
– |
} |
| 721 |
– |
|
| 722 |
– |
|
| 723 |
– |
picwriteline(y, l) /* add 8-bit scanline to image */ |
| 724 |
– |
int y; |
| 725 |
– |
pixel *l; |
| 726 |
– |
{ |
| 727 |
– |
bcopy((char *)l, (char *)ourdata+y*xmax, xmax); |
| 728 |
– |
} |
| 729 |
– |
|
| 730 |
– |
|
| 731 |
– |
picreadcm(map) /* do gamma correction */ |
| 732 |
– |
colormap map; |
| 733 |
– |
{ |
| 734 |
– |
extern double pow(); |
| 735 |
– |
register int i, val; |
| 736 |
– |
|
| 737 |
– |
for (i = 0; i < 256; i++) { |
| 738 |
– |
val = pow((i+0.5)/256.0, 1.0/gamcor) * 256.0; |
| 739 |
– |
map[0][i] = map[1][i] = map[2][i] = val; |
| 740 |
– |
} |
| 741 |
– |
} |
| 742 |
– |
|
| 743 |
– |
|
| 744 |
– |
picwritecm(map) /* handled elsewhere */ |
| 745 |
– |
colormap map; |
| 746 |
– |
{ |
| 747 |
– |
#ifdef DEBUG |
| 748 |
– |
register int i; |
| 749 |
– |
|
| 750 |
– |
for (i = 0; i < 256; i++) |
| 751 |
– |
printf("%d %d %d\n", map[0][i],map[1][i],map[2][i]); |
| 752 |
– |
#endif |
| 1006 |
|
} |
