Exemplo n.º 1
0
void
process_cmd(char *buf)
{
    char	*cp;
    char	*sp;
    char	*ep;
    int		len;
    extern struct command_tab rt_cmdtab[];	/* from do.c */

    /* Parse the string */
    len = strlen(buf);
    ep = buf+len;
    sp = buf;
    cp = buf;
    while (sp < ep)  {
	/* Find next semi-colon */
	while (*cp && *cp != ';')  cp++;
	*cp++ = '\0';
	/* Process this command */
	if (debug)  bu_log("process_cmd '%s'\n", sp);
	if (rt_do_cmd(APP.a_rt_i, sp, rt_cmdtab) < 0)
	    bu_exit(1, "process_cmd: error on '%s'\n", sp);
	sp = cp;
    }
}
Exemplo n.º 2
0
int
main(int argc, char **argv)
{
    char *buf;
    int ret;

    if (argc != 1 || isatty(fileno(stdin))) {
	fprintf(stderr, "Usage: %s < script > table\n", argv[0]);
	return 1;
    }

    /*
     * New way - command driven.
     * Process sequence of input commands.
     * All the work happens in the functions
     * called by rt_do_cmd().
     */
    while ((buf = rt_read_cmd(stdin)) != (char *)0) {
	ret = rt_do_cmd(NULL, buf, rt_cmdtab);
	if (ret < 0) {
	    bu_log("Command failure on '%s'\n", buf);
	    bu_free(buf, "cmd buf");
	    break;
	}
	bu_free(buf, "cmd buf");
    }
    return 0;
}
Exemplo n.º 3
0
/*
 *			M A I N
 */
int main(int argc, char **argv)
{
    struct rt_i *rtip = NULL;
    char *title_file = NULL, *title_obj = NULL;	/* name of file and first object */
    char idbuf[RT_BUFSIZE] = {0};		/* First ID record info */
    void	application_init();
    struct bu_vls	times;
    int i;

#if defined(_WIN32) && !defined(__CYGWIN__)
    setmode(fileno(stdin), O_BINARY);
    setmode(fileno(stdout), O_BINARY);
    setmode(fileno(stderr), O_BINARY);
#else
    bu_setlinebuf( stdout );
    bu_setlinebuf( stderr );
#endif

#ifdef HAVE_SBRK
    beginptr = (char *) sbrk(0);
#endif
    azimuth = 35.0;			/* GIFT defaults */
    elevation = 25.0;

    AmbientIntensity=0.4;
    background[0] = background[1] = 0.0;
    background[2] = 1.0/255.0; /* slightly non-black */

    /* Before option processing, get default number of processors */
    npsw = bu_avail_cpus();		/* Use all that are present */
    if ( npsw > MAX_PSW )  npsw = MAX_PSW;

    /* Before option processing, do application-specific initialization */
    RT_APPLICATION_INIT( &ap );
    application_init();

    /* Process command line options */
    if ( !get_args( argc, argv ) )  {
	(void)fputs(usage, stderr);
	return 1;
    }
    /* Identify the versions of the libraries we are using. */
    if (rt_verbosity & VERBOSE_LIBVERSIONS) {
	(void)fprintf(stderr, "%s%s%s%s\n",
		      brlcad_ident(title),
		      rt_version(),
		      bn_version(),
		      bu_version()
	    );
    }
#if defined(DEBUG)
    (void)fprintf(stderr, "Compile-time debug symbols are available\n");
#endif
#if defined(NO_BOMBING_MACROS) || defined(NO_MAGIC_CHECKING) || defined(NO_BADRAY_CECHKING) || defined(NO_DEBUG_CHECKING)
    (void)fprintf(stderr, "WARNING: Run-time debugging is disabled and may enhance performance\n");
#endif

    /* Identify what host we're running on */
    if (rt_verbosity & VERBOSE_LIBVERSIONS) {
	char	hostname[512] = {0};
#ifndef _WIN32
	if ( gethostname( hostname, sizeof(hostname) ) >= 0 &&
	     hostname[0] != '\0' )
	    (void)fprintf(stderr, "Running on %s\n", hostname);
#else
	sprintf(hostname, "Microsoft Windows");
	(void)fprintf(stderr, "Running on %s\n", hostname);
#endif
    }

    if ( bu_optind >= argc )  {
	fprintf(stderr, "%s:  MGED database not specified\n", argv[0]);
	(void)fputs(usage, stderr);
	return 1;
    }

    if (rpt_overlap)
	ap.a_logoverlap = ((void (*)())0);
    else
	ap.a_logoverlap = rt_silent_logoverlap;

    /* If user gave no sizing info at all, use 512 as default */
    if ( width <= 0 && cell_width <= 0 )
	width = 512;
    if ( height <= 0 && cell_height <= 0 )
	height = 512;

    /* If user didn't provide an aspect ratio, use the image
     * dimensions ratio as a default.
     */
    if (aspect <= 0.0) {
	aspect = (fastf_t)width / (fastf_t)height;
    }

    if ( sub_grid_mode ) {
	/* check that we have a legal subgrid */
	if ( sub_xmax >= width || sub_ymax >= height ) {
	    fprintf( stderr, "rt: illegal values for subgrid %d,%d,%d,%d\n",
		     sub_xmin, sub_ymin, sub_xmax, sub_ymax );
	    fprintf( stderr, "\tFor a %d X %d image, the subgrid must be within 0, 0,%d,%d\n",
		     width, height, width-1, height-1 );
	    return 1;
	}
    }

    if ( incr_mode )  {
	int x = height;
	if ( x < width )  x = width;
	incr_nlevel = 1;
	while ( (1<<incr_nlevel) < x )
	    incr_nlevel++;
	height = width = 1<<incr_nlevel;
	if (rt_verbosity & VERBOSE_INCREMENTAL)
	    fprintf(stderr,
		    "incremental resolution, nlevels = %d, width=%d\n",
		    incr_nlevel, width);
    }

    /*
     *  Handle parallel initialization, if applicable.
     */
#ifndef PARALLEL
    npsw = 1;			/* force serial */
#endif

    if ( npsw < 0 )  {
	/* Negative number means "all but" npsw */
	npsw = bu_avail_cpus() + npsw;
    }


    /* allow debug builds to go higher than the max */
    if (!(bu_debug & BU_DEBUG_PARALLEL)) {
	if ( npsw > MAX_PSW ) {
	    npsw = MAX_PSW;
	}
    }

    if (npsw > 1) {
	rt_g.rtg_parallel = 1;
	if (rt_verbosity & VERBOSE_MULTICPU)
	    fprintf(stderr, "Planning to run with %d processors\n", npsw );
    } else {
	rt_g.rtg_parallel = 0;
    }

    /* Initialize parallel processor support */
    bu_semaphore_init( RT_SEM_LAST );

    /*
     *  Do not use bu_log() or bu_malloc() before this point!
     */

    if ( bu_debug )  {
	bu_printb( "libbu bu_debug", bu_debug, BU_DEBUG_FORMAT );
	bu_log("\n");
    }

    if ( RT_G_DEBUG )  {
	bu_printb( "librt rt_g.debug", rt_g.debug, DEBUG_FORMAT );
	bu_log("\n");
    }
    if ( rdebug )  {
	bu_printb( "rt rdebug", rdebug, RDEBUG_FORMAT );
	bu_log("\n");
    }

    /* We need this to run rt_dirbuild */
    rt_init_resource( &rt_uniresource, MAX_PSW, NULL );
    bn_rand_init( rt_uniresource.re_randptr, 0 );

    title_file = argv[bu_optind];
    title_obj = argv[bu_optind+1];
    nobjs = argc - bu_optind - 1;
    objtab = &(argv[bu_optind+1]);

    if ( nobjs <= 0 )  {
	bu_log("%s: no objects specified -- raytrace aborted\n", argv[0]);
	return 1;
    }

    /* Echo back the command line arugments as given, in 3 Tcl commands */
    if (rt_verbosity & VERBOSE_MODELTITLE) {
	struct bu_vls str;
	bu_vls_init(&str);
	bu_vls_from_argv( &str, bu_optind, (const char **)argv );
	bu_vls_strcat( &str, "\nopendb "  );
	bu_vls_strcat( &str, title_file );
	bu_vls_strcat( &str, ";\ntree " );
	bu_vls_from_argv( &str,
			  nobjs <= 16 ? nobjs : 16,
			  (const char **)argv+bu_optind+1 );
	if ( nobjs > 16 )
	    bu_vls_strcat( &str, " ...");
	else
	    bu_vls_putc( &str, ';' );
	bu_log("%s\n", bu_vls_addr(&str) );
	bu_vls_free(&str);
    }

    /* Build directory of GED database */
    bu_vls_init( &times );
    rt_prep_timer();
    if ( (rtip=rt_dirbuild(title_file, idbuf, sizeof(idbuf))) == RTI_NULL ) {
	bu_log("rt:  rt_dirbuild(%s) failure\n", title_file);
	return 2;
    }
    ap.a_rt_i = rtip;
    (void)rt_get_timer( &times, NULL );
    if (rt_verbosity & VERBOSE_MODELTITLE)
	bu_log("db title:  %s\n", idbuf);
    if (rt_verbosity & VERBOSE_STATS)
	bu_log("DIRBUILD: %s\n", bu_vls_addr(&times) );
    bu_vls_free( &times );
    memory_summary();

    /* Copy values from command line options into rtip */
    rtip->rti_space_partition = space_partition;
    rtip->rti_nugrid_dimlimit = nugrid_dimlimit;
    rtip->rti_nu_gfactor = nu_gfactor;
    rtip->useair = use_air;
    rtip->rti_save_overlaps = save_overlaps;
    if ( rt_dist_tol > 0 )  {
	rtip->rti_tol.dist = rt_dist_tol;
	rtip->rti_tol.dist_sq = rt_dist_tol * rt_dist_tol;
    }
    if ( rt_perp_tol > 0 )  {
	rtip->rti_tol.perp = rt_perp_tol;
	rtip->rti_tol.para = 1 - rt_perp_tol;
    }
    if (rt_verbosity & VERBOSE_TOLERANCE)
	rt_pr_tol( &rtip->rti_tol );

    /* before view_init */
    if ( outputfile && strcmp( outputfile, "-") == 0 )
	outputfile = (char *)0;

    /*
     *  Initialize application.
     *  Note that width & height may not have been set yet,
     *  since they may change from frame to frame.
     */
    if ( view_init( &ap, title_file, title_obj, outputfile!=(char *)0, framebuffer!=(char *)0 ) != 0 )  {
	/* Framebuffer is desired */
	register int xx, yy;
	int	zoom;

	/* Ask for a fb big enough to hold the image, at least 512. */
	/* This is so MGED-invoked "postage stamps" get zoomed up big enough to see */
	xx = yy = 512;
	if ( width > xx || height > yy )  {
	    xx = width;
	    yy = height;
	}
	bu_semaphore_acquire( BU_SEM_SYSCALL );
	fbp = fb_open( framebuffer, xx, yy );
	bu_semaphore_release( BU_SEM_SYSCALL );
	if ( fbp == FBIO_NULL )  {
	    fprintf(stderr, "rt:  can't open frame buffer\n");
	    return 12;
	}

	bu_semaphore_acquire( BU_SEM_SYSCALL );
	/* If fb came out smaller than requested, do less work */
	if ( fb_getwidth(fbp) < width )  width = fb_getwidth(fbp);
	if ( fb_getheight(fbp) < height )  height = fb_getheight(fbp);

	/* If the fb is lots bigger (>= 2X), zoom up & center */
	if ( width > 0 && height > 0 )  {
	    zoom = fb_getwidth(fbp)/width;
	    if ( fb_getheight(fbp)/height < zoom )
		zoom = fb_getheight(fbp)/height;
	} else {
	    zoom = 1;
	}
	(void)fb_view( fbp, width/2, height/2,
		       zoom, zoom );
	bu_semaphore_release( BU_SEM_SYSCALL );
    }
    if ( (outputfile == (char *)0) && (fbp == FBIO_NULL) )  {
	/* If not going to framebuffer, or to a file, then use stdout */
	if ( outfp == NULL )  outfp = stdout;
	/* output_is_binary is changed by view_init, as appropriate */
	if ( output_is_binary && isatty(fileno(outfp)) )  {
	    fprintf(stderr, "rt:  attempting to send binary output to terminal, aborting\n");
	    return 14;
	}
    }

    /*
     *  Initialize all the per-CPU memory resources.
     *  The number of processors can change at runtime, init them all.
     */
    for ( i=0; i < MAX_PSW; i++ )  {
	rt_init_resource( &resource[i], i, rtip );
	bn_rand_init( resource[i].re_randptr, i );
    }
    memory_summary();

#ifdef SIGUSR1
    (void)signal( SIGUSR1, siginfo_handler );
#endif
#ifdef SIGINFO
    (void)signal( SIGINFO, siginfo_handler );
#endif

    if ( !matflag )  {
	int frame_retval;
	def_tree( rtip );		/* Load the default trees */
	do_ae( azimuth, elevation );
	frame_retval = do_frame( curframe );
	if (frame_retval != 0) {
	    /* Release the framebuffer, if any */
	    if ( fbp != FBIO_NULL ) {
		fb_close(fbp);
	    }

	    return 1;
	}
    } else if ( !isatty(fileno(stdin)) && old_way( stdin ) )  {
	; /* All is done */
    } else {
	register char	*buf;
	register int	ret;
	/*
	 * New way - command driven.
	 * Process sequence of input commands.
	 * All the work happens in the functions
	 * called by rt_do_cmd().
	 */
	while ( (buf = rt_read_cmd( stdin )) != (char *)0 )  {
	    if ( R_DEBUG&RDEBUG_PARSE )
		fprintf(stderr, "cmd: %s\n", buf );
	    ret = rt_do_cmd( rtip, buf, rt_cmdtab );
	    bu_free( buf, "rt_read_cmd command buffer" );
	    if ( ret < 0 )
		break;
	}
	if ( curframe < desiredframe )  {
	    fprintf(stderr,
		    "rt:  Desired frame %d not reached, last was %d\n",
		    desiredframe, curframe);
	}
    }

    /* Release the framebuffer, if any */
    if (fbp != FBIO_NULL) {
	fb_close(fbp);
    }

    return(0);
}
Exemplo n.º 4
0
/*
 *			G E T _ A R G S
 */
int get_args( int argc, register char **argv )
{
    register int c;
    register int i;

    bu_optind = 1;		/* restart */


#define GETOPT_STR	\
	".:,:@:a:b:c:d:e:f:g:h:ij:k:l:n:o:p:q:rs:tu:v:w:x:A:BC:D:E:F:G:H:IJ:K:MN:O:P:Q:RST:U:V:WX:!:+:"

    while ( (c=bu_getopt( argc, argv, GETOPT_STR )) != EOF )  {
	switch ( c )  {
	    case 'q':
		i = atoi(bu_optarg);
		if (i <= 0) {
		    bu_exit(EXIT_FAILURE, "-q %d is < 0\n", i);
		}
		if ( i > BN_RANDHALFTABSIZE) {
		    bu_exit(EXIT_FAILURE, "-q %d is > maximum (%d)\n",
			    i, BN_RANDHALFTABSIZE);
		}
		bn_randhalftabsize = i;
		break;
	    case 'h':
		i = sscanf(bu_optarg, "%lg,%lg,%lg,%lg",
			   &airdensity, &haze[X], &haze[Y], &haze[Z]);
		break;
	    case 't':
		transpose_grid = 1;
		break;
	    case 'j':
	    {
		register char	*cp = bu_optarg;

		sub_xmin = atoi(cp);
		while ( (*cp >= '0' && *cp <= '9') )  cp++;
		while ( *cp && (*cp < '0' || *cp > '9') ) cp++;
		sub_ymin = atoi(cp);
		while ( (*cp >= '0' && *cp <= '9') )  cp++;
		while ( *cp && (*cp < '0' || *cp > '9') ) cp++;
		sub_xmax = atoi(cp);
		while ( (*cp >= '0' && *cp <= '9') )  cp++;
		while ( *cp && (*cp < '0' || *cp > '9') ) cp++;
		sub_ymax = atoi(cp);

		bu_log("Sub-rectangle: (%d,%d) (%d,%d)\n",
		       sub_xmin, sub_ymin,
		       sub_xmax, sub_ymax );
		if ( sub_xmin >= 0 && sub_xmin < sub_xmax &&
		     sub_ymin >= 0 && sub_ymin < sub_ymax )  {
		    sub_grid_mode = 1;
		} else {
		    sub_grid_mode = 0;
		    bu_log("WARNING: bad sub-rectangle, ignored\n");
		}
	    }
	    break;
	    case 'k':      /* define cutting plane */
	    {
		fastf_t f;

		do_kut_plane = 1;
		i = sscanf(bu_optarg, "%lg,%lg,%lg,%lg",
			   &kut_plane[X], &kut_plane[Y], &kut_plane[Z], &kut_plane[H]);
		if( i != 4 ) {
		    bu_exit( EXIT_FAILURE, "ERROR: bad cutting plane\n" );
		}

		/* verify that normal has unit length */
		f = MAGNITUDE( kut_plane );
		if( f <= SMALL ) {
		    bu_exit( EXIT_FAILURE, "Bad normal for cutting plane, length=%g\n", f );
		}
		f = 1.0 /f;
		VSCALE( kut_plane, kut_plane, f );
		kut_plane[3] *= f;
		break;
	    }
	    case '.':
		nu_gfactor = (double)atof( bu_optarg );
		break;
	    case ',':
		space_partition = atoi(bu_optarg);
		break;
	    case '@':
		nugrid_dimlimit = atoi(bu_optarg);
		break;
	    case 'c':
		(void)rt_do_cmd( (struct rt_i *)0, bu_optarg, rt_cmdtab );
		break;
	    case 'C':
	    {
		char		buf[128] = {0};
		int		r, g, b;
		register char	*cp = bu_optarg;

		r = atoi(cp);
		while ( (*cp >= '0' && *cp <= '9') )  cp++;
		while ( *cp && (*cp < '0' || *cp > '9') ) cp++;
		g = atoi(cp);
		while ( (*cp >= '0' && *cp <= '9') )  cp++;
		while ( *cp && (*cp < '0' || *cp > '9') ) cp++;
		b = atoi(cp);

		if ( r < 0 || r > 255 )  r = 255;
		if ( g < 0 || g > 255 )  g = 255;
		if ( b < 0 || b > 255 )  b = 255;

#if defined(_WIN32)
		if (r == 0)
		    background[0] = 0.0;
		else
		    background[0] = r / 255.0;
		if (g == 0)
		    background[1] = 0.0;
		else
		    background[1] = g / 255.0;
		if (b == 0)
		    background[2] = 0.0;
		else
		    background[2] = b / 255.0;
#else
		sprintf(buf, "set background=%f/%f/%f",
			r/255., g/255., b/255. );
		(void)rt_do_cmd( (struct rt_i *)0, buf,
				 rt_cmdtab );
#endif
	    }
	    break;
	    case 'T':
	    {
		double		f;
		char		*cp;
		f = 0;
		if ( sscanf( bu_optarg, "%lf", &f ) == 1 )  {
		    if ( f > 0 )
			rt_dist_tol = f;
		}
		f = 0;
		if ( (cp = strchr(bu_optarg, '/')) ||
		     (cp = strchr(bu_optarg, ',')) )  {
		    if ( sscanf( cp+1, "%lf", &f ) == 1 )  {
			if ( f > 0 && f < 1 )
			    rt_perp_tol = f;
		    }
		}
		bu_log("Using tolerance %lg", f);
		break;
	    }
	    case 'U':
		use_air = atoi( bu_optarg );
		break;
	    case 'I':
		interactive = 1;
		break;
	    case 'i':
		incr_mode = 1;
		break;
	    case 'S':
		stereo = 1;
		break;
	    case 'J':
		sscanf( bu_optarg, "%x", &jitter );
		break;
	    case 'H':
		hypersample = atoi( bu_optarg );
		if ( hypersample > 0 )
		    jitter = 1;
		break;
	    case 'F':
		framebuffer = bu_optarg;
		break;
	    case 'D':
		desiredframe = atoi( bu_optarg );
		break;
	    case 'K':
		finalframe = atoi( bu_optarg );
		break;
	    case 'N':
		sscanf( bu_optarg, "%x", (unsigned int *)&rt_g.NMG_debug);
		bu_log("NMG_debug=0x%x\n", rt_g.NMG_debug);
		break;
	    case 'M':
		matflag = 1;
		break;
	    case 'A':
		AmbientIntensity = atof( bu_optarg );
		break;
	    case 'x':
		sscanf( bu_optarg, "%x", (unsigned int *)&rt_g.debug );
		break;
	    case 'X':
		sscanf( bu_optarg, "%x", (unsigned int *)&rdebug );
		break;
	    case '!':
		sscanf( bu_optarg, "%x", (unsigned int *)&bu_debug );
		break;
	    case 's':
		/* Square size */
		i = atoi( bu_optarg );
		if ( i < 2 || i > MAX_WIDTH )
		    fprintf(stderr, "squaresize=%d out of range\n", i);
		else
		    width = height = i;
		break;
	    case 'n':
		i = atoi( bu_optarg );
		if ( i < 2 || i > MAX_WIDTH )
		    fprintf(stderr, "height=%d out of range\n", i);
		else
		    height = i;
		break;
	    case 'W':
		(void)rt_do_cmd( (struct rt_i *)0, "set background=1.0/1.0/1.0", rt_cmdtab );
		default_background = 0;
		break;
	    case 'w':
		i = atoi( bu_optarg );
		if ( i < 2 || i > MAX_WIDTH )
		    fprintf(stderr, "width=%d out of range\n", i);
		else
		    width = i;
		break;
	    case 'g':
		cell_width = atof( bu_optarg );
		cell_newsize = 1;
		break;
	    case 'G':
		cell_height = atof( bu_optarg );
		cell_newsize = 1;
		break;

	    case 'a':
		/* Set azimuth */
		azimuth = atof( bu_optarg );
		matflag = 0;
		break;
	    case 'e':
		/* Set elevation */
		elevation = atof( bu_optarg );
		matflag = 0;
		break;
	    case 'l':
	    {
		char	*item;

		/* Select lighting model # */
		lightmodel= 1;	/* Initialize with Full Lighting Model */
		item= strtok(bu_optarg, ",");
		lightmodel= atoi(item);

		if (lightmodel == 7) {
		    /* Process the photon mapping arguments */
		    item= strtok(NULL, ",");
		    pmargs[0]= item ? atoi(item) : 16384;		/* Number of Global Photons */
		    item= strtok(NULL, ",");
		    pmargs[1]= item ? atof(item) : 50;		/* Percent of Global Photons that should be used for Caustic Photons */
		    item= strtok(NULL, ",");
		    pmargs[2]= item ? atoi(item) : 10;		/* Number of Irradiance Sample Rays, Total Rays is this number squared */
		    item= strtok(NULL, ",");
		    pmargs[3]= item ? atof(item) : 60.0;		/* Angular Tolerance */
		    item= strtok(NULL, ",");
		    pmargs[4]= item ? atoi(item) : 0;		/* Random Seed */
		    item= strtok(NULL, ",");
		    pmargs[5]= item ? atoi(item) : 0;		/* Importance Mapping */
		    item= strtok(NULL, ",");
		    pmargs[6]= item ? atoi(item) : 0;		/* Irradiance Hypersampling */
		    item= strtok(NULL, ",");
		    pmargs[7]= item ? atoi(item) : 0;		/* Visualize Irradiance */
		    item= strtok(NULL, ",");
		    pmargs[8]= item ? atof(item) : 1.0;		/* Scale Lumens */
		    item= strtok(NULL,",");
		    if (item) {
			bu_strlcpy(pmfile, item, sizeof(pmfile));
		    } else {
			pmfile[0]= 0;
		    }
		}
	    }
	    break;
	    case 'O':
		/* Output pixel file name, double precision format */
		outputfile = bu_optarg;
		doubles_out = 1;
		break;
	    case 'o':
		/* Output pixel file name, unsigned char format */
		outputfile = bu_optarg;
		doubles_out = 0;
		break;
	    case 'p':
		rt_perspective = atof( bu_optarg );
		if ( rt_perspective < 0 || rt_perspective > 179 ) {
		    fprintf(stderr, "persp=%g out of range\n", rt_perspective);
		    rt_perspective = 0;
		}
		break;
	    case 'u':
		units = bu_units_conversion(bu_optarg);
		if (units <= 0.0) {
		    units = 1.0;
		    bu_log("WARNING: bad units, using default (%s)\n", bu_units_string(units));
		}
		break;
	    case 'v': /* Set level of "non-debug" debugging output */
		sscanf( bu_optarg, "%x", (unsigned int *)&rt_verbosity );
		bu_printb( "Verbosity:", rt_verbosity,
			   VERBOSE_FORMAT);
		bu_log("\n");
		break;
	    case 'E':
		eye_backoff = atof( bu_optarg );
		break;

	    case 'P':
	    {
		/* Number of parallel workers */
		int avail_cpus;

		avail_cpus = bu_avail_cpus();

		npsw = atoi( bu_optarg );

		if (npsw > avail_cpus ) {
		    fprintf( stderr, "Requesting %d cpus, only %d available.",
			     npsw, avail_cpus );

		    if ((bu_debug & BU_DEBUG_PARALLEL) ||
			(RT_G_DEBUG & DEBUG_PARALLEL)) {
			fprintf(stderr, "\nAllowing surplus cpus due to debug flag.\n");
		    } else {
			fprintf( stderr, "  Will use %d.\n", avail_cpus );
			npsw = avail_cpus;
		    }
		}
		if ( npsw == 0 || npsw < -MAX_PSW || npsw > MAX_PSW )  {
		    fprintf(stderr, "Numer of requested cpus (%d) is out of range 1..%d", npsw, MAX_PSW);

		    if ((bu_debug & BU_DEBUG_PARALLEL) ||
			(RT_G_DEBUG & DEBUG_PARALLEL)) {
			fprintf(stderr, ", but allowing due to debug flag\n");
		    } else {
			fprintf(stderr, ", using -P1\n");
			npsw = 1;
		    }
		}
	    }
	    break;
	    case 'Q':
		Query_one_pixel = ! Query_one_pixel;
		sscanf(bu_optarg, "%d,%d\n", &query_x, &query_y);
		break;
	    case 'B':
		/*  Remove all intentional random effects
		 *  (dither, etc) for benchmarking purposes.
		 */
		benchmark = 1;
		bn_mathtab_constant();
		break;
	    case 'b':
		/* Specify a single pixel to be done */
		/* Actually processed in do_frame() */
		string_pix_start = bu_optarg;
		npsw = 1;	/* Cancel running in parallel */
		break;
	    case 'f':
		/* set expected playback rate in frames-per-second.
		 * This actually gets stored as the delta-t per frame.
		 */
		if ( (frame_delta_t=atof( bu_optarg )) == 0.0) {
		    fprintf(stderr, "Invalid frames/sec (%s) == 0.0\n",
			    bu_optarg);
		    frame_delta_t = 30.0;
		}
		frame_delta_t = 1.0 / frame_delta_t;
		break;
	    case 'V':
	    {
		/* View aspect */

		fastf_t xx, yy;
		register char *cp = bu_optarg;

		xx = atof(cp);
		while ( (*cp >= '0' && *cp <= '9')
			|| *cp == '.' )  cp++;
		while ( *cp && (*cp < '0' || *cp > '9') ) cp++;
		yy = atof(cp);
		if ( yy == 0 )
		    aspect = xx;
		else
		    aspect = xx/yy;
		if ( aspect <= 0.0 ) {
		    fprintf(stderr, "Bogus aspect %g, using 1.0\n", aspect);
		    aspect = 1.0;
		}
	    }
	    break;
	    case 'r':
		/* report overlapping region names */
		rpt_overlap = 1;
		break;
	    case 'R':
		/* DON'T report overlapping region names */
		rpt_overlap = 0;
		break;
	    case 'd':
		rpt_dist = atoi( bu_optarg );
		break;
	    case '+':
	    {
		register char	*cp = bu_optarg;
		switch (*cp) {
		    case 't':
			output_is_binary = 0;
			break;
		    default:
			fprintf(stderr, "ERROR: unknown option %c\n", *cp);
			return(0);	/* BAD */
		}
	    }
	    break;
	    case EOF:
		fprintf(stderr, "ERROR: unknown option %c\n", c);
		return(0);	/* BAD */
	    default:		/* '?' */
		fprintf(stderr, "ERROR: bad option specified\n");
		return(0);	/* BAD */
	}
    }

    /* sanity checks for sane values */
    if ( aspect <= 0.0 ) {
	aspect = 1.0;
    }

    /* Compat */
    if (RT_G_DEBUG || R_DEBUG || rt_g.NMG_debug )
	bu_debug |= BU_DEBUG_COREDUMP;

    if (RT_G_DEBUG & DEBUG_MEM_FULL)
	bu_debug |= BU_DEBUG_MEM_CHECK;
    if (RT_G_DEBUG & DEBUG_MEM)
	bu_debug |= BU_DEBUG_MEM_LOG;
    if (RT_G_DEBUG & DEBUG_PARALLEL)
	bu_debug |= BU_DEBUG_PARALLEL;
    if (RT_G_DEBUG & DEBUG_MATH)
	bu_debug |= BU_DEBUG_MATH;

    if (R_DEBUG & RDEBUG_RTMEM_END)
	bu_debug |= BU_DEBUG_MEM_CHECK;

    return(1);			/* OK */
}