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Author: theagentd (posted 2014-05-11 02:43:56, viewed 245 times)

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package engine.profile;

import static org.lwjgl.opengl.GL11.*;
import static org.lwjgl.opengl.GL15.*;
import static org.lwjgl.opengl.GL33.*;

import java.util.ArrayList;

import engine.etc.FastArrayList;
import engine.etc.pool.Poolable;

public class GPUTaskProfile implements Poolable{
   
   private GPUTaskProfile parent;
   
   private String name;
   
   private int startQuery, endQuery;
   
   private FastArrayList<GPUTaskProfile> children;
   
   public GPUTaskProfile() {
      
      children = new FastArrayList<>();
      
   }
   
   public GPUTaskProfile init(GPUTaskProfile parent, String name, int startQuery){
      
      this.parent = parent;
      this.name = name;
      this.startQuery = startQuery;
      
      if(parent != null){
         parent.addChild(this);
      }
      
      return this;
   }

   private void addChild(GPUTaskProfile profilerTask) {
      children.add(profilerTask);
   }

   public GPUTaskProfile end(int endQuery) {
      this.endQuery = endQuery;
      return parent;
   }

   public GPUTaskProfile getParent() {
      return parent;
   }

   public boolean resultsAvailable() {
      return glGetQueryObjectui(endQuery, GL_QUERY_RESULT_AVAILABLE) == GL_TRUE;
   }
   
   public String getName(){
      return name;
   }
   
   public int getStartQuery(){
      return startQuery;
   }
   
   public int getEndQuery(){
      return endQuery;
   }
   
   public long getStartTime(){
      return glGetQueryObjectui64(startQuery, GL_QUERY_RESULT);
   }
   
   public long getEndTime(){
      return glGetQueryObjectui64(endQuery, GL_QUERY_RESULT);
   }
   
   public long getTimeTaken(){
      return getEndTime() - getStartTime();
   }
   
   public FastArrayList<GPUTaskProfile> getChildren(){
      return children;
   }

   @Override
   public void reset() {
      startQuery = -1;
      endQuery = -1;
      children.clear();
   }
   
   public void dump(){
      dump(0);
   }
   
   private void dump(int indentation){
      for(int i = 0; i < indentation; i++){
         System.out.print("    ");
      }
      System.out.println(name + " : " + getTimeTaken()/1000 / 1000f + "ms");
      for(int i = 0; i < children.size(); i++){
         children.get(i).dump(indentation + 1);
      }
   }
}





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