specter.cc

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#include "Background.h"
#include "Camera.h"
#include "ConstantBackground.h"
#include "Color.h"
#include "Group.h"
#include "Image.h"
#include "LambertianMaterial.h"
#include "Light.h"
#include "Material.h"
#include "Object.h"
#include "PinholeCamera.h"
#include "Plane.h"
#include "PointLight.h"
#include "Ray.h"
#include "Scene.h"
#include "Sphere.h"
#include "Time.h"
#include "Parser.h"
#include <iomanip>
#include <iostream>
#include <fstream>

#include <unistd.h>
#include <string.h>

using namespace std;


/* declarations to support use of getopt() system call */
char *options = "hb:";
extern char *optarg;
extern int optind, opterr, getopt();

char *progname = "(noname)";

int xpixel;
int ypixel;
bool one_only;


void usage(char *s)
{
    if (s) (void)fputs(s, stderr);

    (void) fprintf(stderr, "Usage: %s [ -%s ] [<] infile > outfile]\n",
                   progname, options);
    exit(1);
}

int parse_args(int ac, char *av[])
{
    int  c;

    if (  ! (progname=strrchr(*av, '/'))  )
        progname = *av;
    else
        ++progname;

    /* Turn off getopt's error messages */
    opterr = 0;

    /* get all the option flags from the command line */
    while ((c=getopt(ac,av,options)) != EOF)
        switch (c) {
        case 'b'        :
            if (sscanf(optarg, "%d,%d", &xpixel, &ypixel) == 2) {
                one_only = true;
            }
            break;
        case '?'        :
        case 'h'        :
        default         : usage("Bad or help flag specified\n"); break;
        }

    return(optind);
}


int main(int argc, char** argv)
{
  double t1 = Time::currentSeconds();

  int arg_count = parse_args(argc, argv);

  if ( argc - arg_count < 1 ) {
      cerr << "Usage: specter scene " << argc - arg_count << " " << arg_count << endl;
    return 1;
  }
  ifstream scene_file( argv[ arg_count ] );
  if ( !scene_file.good() ) {
    cerr << "Unable to read scene file: " << argv[ 1 ] << endl;
    return 1;
  }
  Parser reader( scene_file );
  string filename = "image.png";
  Scene *scene = reader.parseScene( filename );

  scene->preprocess();

  double t2 = Time::currentSeconds();
  scene->render();

  double t3 = Time::currentSeconds();
  scene->getImage()->write(filename);

  double t4 = Time::currentSeconds();
  cerr << "Setup/load time:\t" << setprecision(3) << t2-t1 << " seconds\n";
  cerr << "Render time:\t\t" << setprecision(3) << t3-t2 << " seconds\n";
  cerr << "Post-process time:\t" << setprecision(3) << t4-t3 << " seconds\n";

  return 0;
}

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