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#include "pic.h" |
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#include "random.h" |
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#define controlshift(e) (((XButtonEvent *)(e))->detail & (ShiftMask|ControlMask)) |
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#define FONTNAME "9x15" /* text font we'll use */ |
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int xoff = 0; /* x image offset */ |
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int yoff = 0; /* y image offset */ |
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VIEW ourview = STDVIEW(0); /* image view parameters */ |
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VIEW ourview = STDVIEW; /* image view parameters */ |
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int gotview = 0; /* got parameters from file */ |
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COLR *scanline; /* scan line buffer */ |
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if (fgetresolu(&xmax, &ymax, fin) != (YMAJOR|YDECR)) |
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quiterr("bad picture size"); |
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/* set view parameters */ |
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if (gotview) |
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if (setview(&ourview) != NULL) |
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gotview = 0; |
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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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static char *altname[] = {"rview","rpict",VIEWSTR,NULL}; |
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register char **an; |
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if (!strncmp(s, "EXPOSURE=", 9)) |
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exposure *= atof(s+9); |
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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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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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} |
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char * |
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sskip(s) /* skip a word */ |
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register char *s; |
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{ |
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while (isspace(*s)) s++; |
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while (*s && !isspace(*s)) s++; |
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return(s); |
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} |
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|
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|
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init() /* get data and open window */ |
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{ |
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register int i; |
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{ |
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char buf[80]; |
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COLOR cval; |
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Color cvx; |
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char *cp; |
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int n; |
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double comp; |
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return(0); |
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switch (*cp) { /* interpret command */ |
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case 'q': |
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case CTRL(D): /* quiterr */ |
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case CTRL(D): /* quit */ |
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quit(0); |
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case '\n': |
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case '\r': |
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switch (*cp) { |
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case '\n': |
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case '\r': /* radiance */ |
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sprintf(buf, "%-3g", intens(cval)/exposure); |
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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, "%-3gL", bright(cval)*683.0/exposure); |
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sprintf(buf, "%.0fn", bright(cval)*683.0/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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XText(wind, box.xmin, box.ymin, buf, strlen(buf), |
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fontid, BlackPixel, WhitePixel); |
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return(0); |
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case 'i': /* identify (contour) */ |
390 |
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if (ourras->pixels == NULL) |
391 |
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return(-1); |
392 |
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n = ourras->data.bz[ekey->x-xoff+BZPixmapSize(xmax,ekey->y-yoff)]; |
393 |
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n = ourras->pmap[n]; |
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cvx.pixel = ourras->cdefs[n].pixel; |
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cvx.red = random() & 65535; |
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cvx.green = random() & 65535; |
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cvx.blue = random() & 65535; |
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XStoreColor(&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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XText(wind, ekey->x, ekey->y, buf, strlen(buf), |
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XFeep(0); |
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return(-1); |
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} |
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rayview(rorg, rdir, &ourview, |
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ekey->x-xoff + .5, ymax-1-ekey->y+yoff + .5); |
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viewray(rorg, rdir, &ourview, (ekey->x-xoff+.5)/xmax, |
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(ymax-1-ekey->y+yoff+.5)/ymax); |
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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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/* fall through */ |
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case CTRL(R): /* redraw */ |
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case CTRL(L): |
433 |
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unmap_rcolors(ourras); |
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XClear(wind); |
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return(redraw(0, 0, width, height)); |
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case ' ': /* clear */ |
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double sf; |
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{ |
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register int i; |
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int maxv; |
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long maxv; |
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|
609 |
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if (xr->pixels == NULL) |
610 |
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return; |
611 |
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|
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sf = pow(sf, 1.0/gamcor); |
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maxv = (1<<16) / sf; |
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maxv = 65535/sf; |
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for (i = xr->ncolors; i--; ) { |
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xr->cdefs[i].red = xr->cdefs[i].red >= maxv ? |
617 |
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(1<<16)-1 : |
616 |
> |
xr->cdefs[i].red = xr->cdefs[i].red > maxv ? |
617 |
> |
65535 : |
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xr->cdefs[i].red * sf; |
619 |
< |
xr->cdefs[i].green = xr->cdefs[i].green >= maxv ? |
620 |
< |
(1<<16)-1 : |
619 |
> |
xr->cdefs[i].green = xr->cdefs[i].green > maxv ? |
620 |
> |
65535 : |
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xr->cdefs[i].green * sf; |
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xr->cdefs[i].blue = xr->cdefs[i].blue >= maxv ? |
623 |
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(1<<16)-1 : |
622 |
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xr->cdefs[i].blue = xr->cdefs[i].blue > maxv ? |
623 |
> |
65535 : |
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xr->cdefs[i].blue * sf; |
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} |
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if (xr->pixels != NULL) |
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XStoreColors(xr->ncolors, xr->cdefs); |
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XStoreColors(xr->ncolors, xr->cdefs); |
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} |
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int y; |
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register rgbpixel *l3; |
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{ |
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register BYTE *l4; |
655 |
< |
register int shift, c; |
651 |
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int i; |
652 |
< |
|
654 |
> |
register int i; |
655 |
> |
/* read scanline */ |
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if (getscan(y) < 0) |
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quiterr("cannot seek for picreadline"); |
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/* convert scanline */ |
659 |
< |
for (l4=scanline[0], i=xmax; i--; l4+=4, l3++) { |
660 |
< |
shift = l4[EXP] - COLXS + scale; |
661 |
< |
if (shift >= 8) { |
662 |
< |
l3->r = l3->g = l3->b = 255; |
663 |
< |
} else if (shift <= -8) { |
661 |
< |
l3->r = l3->g = l3->b = 0; |
662 |
< |
} else if (shift > 0) { |
663 |
< |
c = l4[RED] << shift; |
664 |
< |
l3->r = c > 255 ? 255 : c; |
665 |
< |
c = l4[GRN] << shift; |
666 |
< |
l3->g = c > 255 ? 255 : c; |
667 |
< |
c = l4[BLU] << shift; |
668 |
< |
l3->b = c > 255 ? 255 : c; |
669 |
< |
} else if (shift < 0) { |
670 |
< |
l3->r = l4[RED] >> -shift; |
671 |
< |
l3->g = l4[GRN] >> -shift; |
672 |
< |
l3->b = l4[BLU] >> -shift; |
673 |
< |
} else { |
674 |
< |
l3->r = l4[RED]; |
675 |
< |
l3->g = l4[GRN]; |
676 |
< |
l3->b = l4[BLU]; |
677 |
< |
} |
659 |
> |
normcolrs(scanline, xmax, scale); |
660 |
> |
for (i = 0; i < xmax; i++) { |
661 |
> |
l3[i].r = scanline[i][RED]; |
662 |
> |
l3[i].g = scanline[i][GRN]; |
663 |
> |
l3[i].b = scanline[i][BLU]; |
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} |
665 |
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} |
666 |
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669 |
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int y; |
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pixel *l; |
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{ |
672 |
< |
bcopy(l, ourras->data.bz+BZPixmapSize(xmax,y), BZPixmapSize(xmax,1)); |
672 |
> |
bcopy((char *)l, (char *)ourras->data.bz+BZPixmapSize(xmax,y), BZPixmapSize(xmax,1)); |
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} |
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675 |
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