public HierarchicalProfilerSample(Microsoft.Xna.Framework.Game game)
: base(game)
{
GraphicsScreen.ClearBackground = true;
GraphicsScreen.UseFixedWidthFont = true;
// Start profiling.
_profiler.Reset();
// This loop simulates the main-loop of a game.
for (int i = 0; i < 20; i++)
{
// NewFrame() must be called when a new frame begins (= start of game loop).
_profiler.NewFrame();
Update();
Draw();
}
// Print the profiler data. We start at the root node and include up to 5 child levels.
var debugRenderer = GraphicsScreen.DebugRenderer2D;
debugRenderer.DrawText("\n");
debugRenderer.DrawText(_profiler.Dump(_profiler.Root, 5));
}
// Updates the different sub-systems (input, physics, game logic, ...).
protected override void Update(GameTime gameTime)
{
_deltaTime = gameTime.ElapsedGameTime;
// Tell the profiler that a new frame has begun.
_profiler.NewFrame();
_profiler.Start("Update");
// Update input manager. The input manager gets the device states and performs other work.
// (Note: XNA requires that the input service is run on the main thread!)
_profiler.Start("InputManager.Update ");
_inputManager.Update(_deltaTime);
_profiler.Stop();
// Update animations.
// (The animation results are stored internally but not yet applied).
_profiler.Start("AnimationManger.Update ");
_animationManager.Update(_deltaTime);
_profiler.Stop();
// Apply animations.
// (The animation results are written to the objects and properties that
// are being animated. ApplyAnimations() must be called at a point where
// it is thread-safe to change the animated objects and properties.)
_profiler.Start("AnimationManager.ApplyAnimations");
_animationManager.ApplyAnimations();
_profiler.Stop();
// Run any task completion callbacks that have been scheduled.
_profiler.Start("Parallel.RunCallbacks ");
Parallel.RunCallbacks();
_profiler.Stop();
// Update XNA GameComponents.
_profiler.Start("base.Update ");
base.Update(gameTime);
_profiler.Stop();
// Update UI manager. The UI manager updates all registered UIScreens.
_profiler.Start("UIManager.Update ");
_uiManager.Update(_deltaTime);
_profiler.Stop();
// Update DigitalRune GameObjects.
_profiler.Start("GameObjectManager.Update ");
_gameObjectManager.Update(_deltaTime);
_profiler.Stop();
_profiler.Stop();
}
// Updates the different sub-systems (input, physics, game logic, ...).
protected override void Update(GameTime gameTime)
{
_deltaTime = gameTime.ElapsedGameTime;
// Tell the profiler that a new frame has begun.
_profiler.NewFrame();
_profiler.Start("Update");
// Update input manager. The input manager gets the device states and performs other work.
// (Note: XNA requires that the input service is run on the main thread!)
_profiler.Start("InputManager.Update ");
_inputManager.Update(_deltaTime);
_profiler.Stop();
if (EnableParallelGameLoop)
{
// In a parallel game loop animation, physics and particles are started at
// the end of the Update method. The services are now running in parallel.
// --> Wait for services to finish.
_updateAnimationTask.Wait();
_updatePhysicsTask.Wait();
_updateParticlesTask.Wait();
// Now, nothing is running in parallel anymore and we can apply the animations.
// (This means the animation values are written to the objects and properties
// that are being animated.)
_animationManager.ApplyAnimations();
}
else
{
// Update animation, physics, particles sequentially.
// For debugging we can pause the physics and particle simulations with <P>,
// and execute single simulation steps with <T>.
if (_inputManager.IsPressed(Keys.P, true))
{
_isSimulationPaused = !_isSimulationPaused;
}
if (!_isSimulationPaused || _inputManager.IsPressed(Keys.T, true))
{
// Update physics simulation.
_profiler.Start("Simulation.Update ");
_simulation.Update(_deltaTime);
_profiler.Stop();
// Update particles.
_profiler.Start("ParticleSystemManager.Update ");
_particleSystemManager.Update(_deltaTime);
_profiler.Stop();
}
// Update animations.
// (The animation results are stored internally but not yet applied).
_profiler.Start("AnimationManger.Update ");
_animationManager.Update(_deltaTime);
_profiler.Stop();
// Apply animations.
// (The animation results are written to the objects and properties that
// are being animated. ApplyAnimations() must be called at a point where
// it is thread-safe to change the animated objects and properties.)
_profiler.Start("AnimationManager.ApplyAnimations");
_animationManager.ApplyAnimations();
_profiler.Stop();
}
// Run any task completion callbacks that have been scheduled.
_profiler.Start("Parallel.RunCallbacks ");
Parallel.RunCallbacks();
_profiler.Stop();
// When the menu is visible, update SampleFramework before the game logic.
if (_sampleFramework.IsMenuVisible)
{
_sampleFramework.Update();
}
// Update XNA GameComponents.
_profiler.Start("base.Update ");
base.Update(gameTime);
_profiler.Stop();
// Update UI manager. The UI manager updates all registered UIScreens.
_profiler.Start("UIManager.Update ");
_uiManager.Update(_deltaTime);
_profiler.Stop();
// Update DigitalRune GameObjects.
_profiler.Start("GameObjectManager.Update ");
_gameObjectManager.Update(_deltaTime);
_profiler.Stop();
// When the menu is hidden, update SampleFramework after the game logic.
if (!_sampleFramework.IsMenuVisible)
{
_sampleFramework.Update();
}
if (EnableParallelGameLoop)
{
// Start animation, physics and particle simulation. They will be executed
// parallel to the graphics rendering in Draw().
_updateAnimationTask = Parallel.Start(_updateAnimation);
_updatePhysicsTask = Parallel.Start(_updatePhysics);
_updateParticlesTask = Parallel.Start(_updateParticles);
}
_profiler.Stop();
}