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/* Copyright (c) 1990 Regents of the University of California */ |
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/* Copyright (c) 1991 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 "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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|
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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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|
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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 revgc; /* graphics context with GXinvert */ |
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|
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XRASTER *ourras; /* our stored image */ |
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|
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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 char *malloc(), *calloc(); |
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extern double atof(), pow(), log(); |
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extern double pow(), log(); |
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|
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Display *thedisplay; |
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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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{ |
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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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else if (isformat(s)) { |
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formatval(fmt, s); |
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wrongformat = strcmp(fmt, COLRFMT); |
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} else |
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for (an = altname; *an != NULL; an++) |
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if (!strncmp(*an, s, strlen(*an))) { |
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if (sscanview(&ourview, s+strlen(*an)) > 0) |
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|
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init() /* get data and open window */ |
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{ |
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XWMHints ourxwmhints; |
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XSetWindowAttributes ourwinattr; |
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XSizeHints oursizhints; |
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register int i; |
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XSetFont(thedisplay, ourgc, fontid); |
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revgc = XCreateGC(thedisplay, wind, 0, 0); |
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XSetFunction(thedisplay, revgc, GXinvert); |
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XStoreName(thedisplay, wind, fname == NULL ? progname : fname); |
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XDefineCursor(thedisplay, wind, XCreateFontCursor(thedisplay, |
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XC_diamond_cross)); |
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XStoreName(thedisplay, wind, fname == NULL ? progname : fname); |
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if (geometry != NULL) { |
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bzero((char *)&oursizhints, sizeof(oursizhints)); |
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i = XParseGeometry(geometry, &oursizhints.x, &oursizhints.y, |
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&oursizhints.width, &oursizhints.height); |
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(unsigned *)&oursizhints.width, |
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(unsigned *)&oursizhints.height); |
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if ((i&(WidthValue|HeightValue)) == (WidthValue|HeightValue)) |
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oursizhints.flags |= USSize; |
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else { |
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} |
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XSetNormalHints(thedisplay, wind, &oursizhints); |
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} |
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ourxwmhints.flags = InputHint|IconPixmapHint; |
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ourxwmhints.input = True; |
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ourxwmhints.icon_pixmap = XCreateBitmapFromData(thedisplay, |
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wind, icondata, iconwidth, iconheight); |
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XSetWMHints(thedisplay, wind, &ourxwmhints); |
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XSelectInput(thedisplay, wind, ButtonPressMask|ButtonReleaseMask |
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|ButtonMotionMask|StructureNotifyMask |
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|KeyPressMask|ExposureMask); |
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if (ourras == NULL) |
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goto fail; |
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getmono(); |
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} else if (XMatchVisualInfo(thedisplay,ourscreen,24,TrueColor,&vinfo)) { |
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} else if (XMatchVisualInfo(thedisplay,ourscreen,24,TrueColor,&vinfo) |
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/* kludge for DirectColor */ |
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|| XMatchVisualInfo(thedisplay,ourscreen,24,DirectColor,&vinfo)) { |
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ourdata = (unsigned char *)malloc(xmax*ymax*3); |
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if (ourdata == NULL) |
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goto fail; |
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} |
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return; |
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fail: |
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quit("could not create raster image"); |
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quiterr("could not create raster image"); |
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} |
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XColor cvx; |
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int com, n; |
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double comp; |
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FLOAT hv[2]; |
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FVECT rorg, rdir; |
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n = XLookupString(ekey, buf, sizeof(buf), NULL, NULL); |
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sprintf(buf, "%.3f", intens(cval)/exposure); |
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break; |
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case 'l': /* luminance */ |
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sprintf(buf, "%.0fn", bright(cval)*683.0/exposure); |
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sprintf(buf, "%.0fL", luminance(cval)/exposure); |
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break; |
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case 'c': /* color */ |
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comp = pow(2.0, (double)scale); |
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XStoreColor(thedisplay, ourras->cmap, &cvx); |
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return(0); |
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case 'p': /* position */ |
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sprintf(buf, "(%d,%d)", ekey->x-xoff, ymax-1-ekey->y+yoff); |
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pix2loc(hv, &inpres, ekey->x-xoff, ekey->y-yoff); |
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sprintf(buf, "(%d,%d)", (int)(hv[0]*inpres.xr), |
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(int)(hv[1]*inpres.yr)); |
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XDrawImageString(thedisplay, wind, ourgc, ekey->x, ekey->y, |
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buf, strlen(buf)); |
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return(0); |
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XBell(thedisplay, 0); |
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return(-1); |
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} |
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viewray(rorg, rdir, &ourview, |
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(ekey->x-xoff+.5)/xmax, |
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(ymax-1-ekey->y+yoff+.5)/ymax); |
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pix2loc(hv, &inpres, ekey->x-xoff, ekey->y-yoff); |
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if (viewray(rorg, rdir, &ourview, hv[0], hv[1]) < 0) |
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return(-1); |
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printf("%e %e %e ", rorg[0], rorg[1], rorg[2]); |
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printf("%e %e %e\n", rdir[0], rdir[1], rdir[2]); |
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fflush(stdout); |
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avgbox(clr) /* average color over current box */ |
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COLOR clr; |
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{ |
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static COLOR lc; |
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static int ll, lr, lt, lb; |
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int left, right, top, bottom; |
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int y; |
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double d; |
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bottom = ymax; |
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if (top >= bottom) |
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return(-1); |
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if (left == ll && right == lr && top == lt && bottom == lb) { |
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copycolor(clr, lc); |
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return; |
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} |
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for (y = top; y < bottom; y++) { |
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if (getscan(y) == -1) |
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return(-1); |
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} |
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d = 1.0/((right-left)*(bottom-top)); |
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scalecolor(clr, d); |
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ll = left; lr = right; lt = top; lb = bottom; |
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copycolor(lc, clr); |
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return(0); |
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} |
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{ |
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register unsigned char *dp; |
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register int x, err; |
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int y; |
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rgbpixel *inline; |
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int y, errp; |
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short *cerr; |
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641 |
< |
if ((inline = (rgbpixel *)malloc(xmax*sizeof(rgbpixel))) == NULL |
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|| (cerr = (short *)calloc(xmax,sizeof(short))) == NULL) |
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quit("out of memory in getmono"); |
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if ((cerr = (short *)calloc(xmax,sizeof(short))) == NULL) |
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quiterr("out of memory in getmono"); |
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dp = ourdata - 1; |
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for (y = 0; y < ymax; y++) { |
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picreadline3(y, inline); |
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if (getscan(y) < 0) |
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quiterr("seek error in getmono"); |
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normcolrs(scanline, xmax, scale); |
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add2icon(y, scanline); |
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err = 0; |
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for (x = 0; x < xmax; x++) { |
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if (!(x&7)) |
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*++dp = 0; |
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err += rgb_bright(&inline[x]) + cerr[x]; |
653 |
> |
errp = err; |
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err += normbright(scanline[x]) + cerr[x]; |
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if (err > 127) |
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err -= 255; |
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else |
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*dp |= 1<<(7-(x&07)); |
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< |
cerr[x] = err >>= 1; |
659 |
> |
err /= 3; |
660 |
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cerr[x] = err + errp; |
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} |
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} |
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free((char *)inline); |
663 |
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free((char *)cerr); |
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} |
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add2icon(y, scan) /* add a scanline to our icon data */ |
668 |
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int y; |
669 |
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COLR *scan; |
670 |
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{ |
671 |
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static short cerr[ICONSIZ]; |
672 |
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static int ynext; |
673 |
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static char *dp; |
674 |
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register int err; |
675 |
+ |
register int x, ti; |
676 |
+ |
int errp; |
677 |
+ |
|
678 |
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if (iconheight == 0) { /* initialize */ |
679 |
+ |
if (xmax <= ICONSIZ && ymax <= ICONSIZ) { |
680 |
+ |
iconwidth = xmax; |
681 |
+ |
iconheight = ymax; |
682 |
+ |
} else if (xmax > ymax) { |
683 |
+ |
iconwidth = ICONSIZ; |
684 |
+ |
iconheight = ICONSIZ*ymax/xmax; |
685 |
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if (iconheight < 1) |
686 |
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iconheight = 1; |
687 |
+ |
} else { |
688 |
+ |
iconwidth = ICONSIZ*xmax/ymax; |
689 |
+ |
if (iconwidth < 1) |
690 |
+ |
iconwidth = 1; |
691 |
+ |
iconheight = ICONSIZ; |
692 |
+ |
} |
693 |
+ |
ynext = 0; |
694 |
+ |
dp = icondata - 1; |
695 |
+ |
} |
696 |
+ |
if (y < ynext*ymax/iconheight) /* skip this one */ |
697 |
+ |
return; |
698 |
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err = 0; |
699 |
+ |
for (x = 0; x < iconwidth; x++) { |
700 |
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if (!(x&7)) |
701 |
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*++dp = 0; |
702 |
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errp = err; |
703 |
+ |
ti = x*xmax/iconwidth; |
704 |
+ |
err += normbright(scan[ti]) + cerr[x]; |
705 |
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if (err > 127) |
706 |
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err -= 255; |
707 |
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else |
708 |
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*dp |= 1<<(x&07); |
709 |
+ |
err /= 3; |
710 |
+ |
cerr[x] = err + errp; |
711 |
+ |
} |
712 |
+ |
ynext++; |
713 |
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} |
714 |
+ |
|
715 |
+ |
|
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getfull() /* get full (24-bit) data */ |
717 |
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{ |
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int y; |
719 |
< |
|
720 |
< |
for (y = 0; y < ymax; y++) |
721 |
< |
picreadline3(y, (rgbpixel *)(ourdata+y*xmax*3)); |
719 |
> |
register unsigned char *dp; |
720 |
> |
register int x; |
721 |
> |
/* set gamma correction */ |
722 |
> |
setcolrgam(gamcor); |
723 |
> |
/* read and convert file */ |
724 |
> |
dp = ourdata; |
725 |
> |
for (y = 0; y < ymax; y++) { |
726 |
> |
if (getscan(y) < 0) |
727 |
> |
quiterr("seek error in getfull"); |
728 |
> |
if (scale) |
729 |
> |
shiftcolrs(scanline, xmax, scale); |
730 |
> |
colrs_gambs(scanline, xmax); |
731 |
> |
add2icon(y, scanline); |
732 |
> |
for (x = 0; x < xmax; x++) { |
733 |
> |
*dp++ = scanline[x][RED]; |
734 |
> |
*dp++ = scanline[x][GRN]; |
735 |
> |
*dp++ = scanline[x][BLU]; |
736 |
> |
} |
737 |
> |
} |
738 |
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} |
739 |
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if (scanpos == NULL || scanpos[y] == -1) |
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return(-1); |
775 |
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if (fseek(fin, scanpos[y], 0) == -1) |
776 |
< |
quit("fseek error"); |
776 |
> |
quiterr("fseek error"); |
777 |
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cury = y; |
778 |
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} else if (scanpos != NULL) |
779 |
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scanpos[y] = ftell(fin); |
796 |
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quiterr("cannot seek for picreadline"); |
797 |
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/* convert scanline */ |
798 |
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normcolrs(scanline, xmax, scale); |
799 |
+ |
add2icon(y, scanline); |
800 |
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for (i = 0; i < xmax; i++) { |
801 |
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l3[i].r = scanline[i][RED]; |
802 |
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l3[i].g = scanline[i][GRN]; |
820 |
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register int i, val; |
821 |
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|
822 |
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for (i = 0; i < 256; i++) { |
823 |
< |
val = pow(i/256.0, 1.0/gamcor) * 256.0; |
823 |
> |
val = pow((i+0.5)/256.0, 1.0/gamcor) * 256.0; |
824 |
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map[0][i] = map[1][i] = map[2][i] = val; |
825 |
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} |
826 |
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} |