SettingsPerformanceTest.java

package org.jbox2d.profile;

import org.jbox2d.common.Settings;
import org.jbox2d.common.Vec2;
import org.jbox2d.dynamics.World;
import org.jbox2d.profile.worlds.PerformanceTestWorld;
import org.jbox2d.profile.worlds.PistonWorld;

public class SettingsPerformanceTest extends BasicPerformanceTest {

  private static int NUM_TESTS = 14;
  private PerformanceTestWorld world;

  public SettingsPerformanceTest(int iters, PerformanceTestWorld world) {
    super(NUM_TESTS, iters, 300);
    this.world = world;
  }

  public static void main(String[] args) {
    SettingsPerformanceTest benchmark = new SettingsPerformanceTest(10, new PistonWorld());
    benchmark.go();
  }
  
  @Override
  public void setupTest(int testNum) {
    World w = new World(new Vec2(0, -10));
    world.setupWorld(w);
  }

  @Override
  public void preStep(int testNum) {
    Settings.FAST_ABS = testNum == 1;
    Settings.FAST_ATAN2 = testNum == 2;
    Settings.FAST_CEIL = testNum == 3;
    Settings.FAST_FLOOR = testNum == 4;
    Settings.FAST_ROUND = testNum == 5;
    Settings.SINCOS_LUT_ENABLED = testNum == 6;

    if (testNum == 7) {
      Settings.FAST_ABS = true;
      Settings.FAST_ATAN2 = true;
      Settings.FAST_CEIL = true;
      Settings.FAST_FLOOR = true;
      Settings.FAST_ROUND = true;
      Settings.SINCOS_LUT_ENABLED = true;
    }

    if (testNum > 7) {
      Settings.FAST_ABS = testNum != 8;
      Settings.FAST_ATAN2 = testNum != 9;
      Settings.FAST_CEIL = testNum != 10;
      Settings.FAST_FLOOR = testNum != 11;
      Settings.FAST_ROUND = testNum != 12;
      Settings.SINCOS_LUT_ENABLED = testNum != 13;
    }
  }

  @Override
  public void step(int testNum) {
    world.step();
  }

  @Override
  public String getTestName(int testNum) {
    switch (testNum) {
      case 0:
        return "No optimizations";
      case 1:
        return "Fast abs";
      case 2:
        return "Fast atan2";
      case 3:
        return "Fast ceil";
      case 4:
        return "Fast floor";
      case 5:
        return "Fast round";
      case 6:
        return "Sincos lookup table";
      case 7:
        return "All optimizations on";
      case 8:
        return "no Fast abs";
      case 9:
        return "no Fast atan2";
      case 10:
        return "no Fast ceil";
      case 11:
        return "no Fast floor";
      case 12:
        return "no Fast round";
      case 13:
        return "no Sincos lookup";
      default:
        return "";
    }
  }
}