Android Open Source - AndroidFramework Android Fast Render View

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License

The source code is released under:

This is free and unencumbered software released into the public domain. Anyone is free to copy, modify, publish, use, compile, sell, or distribute this software, either in source code form or as a co...

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Java Source Code

package com.mdobbins.implementation.framework;
/*w w w .  j  av a 2  s  . c  o  m*/
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Rect;
import android.view.SurfaceHolder;
import android.view.SurfaceView;

public class AndroidFastRenderView extends SurfaceView implements Runnable {
    AndroidGame game;
    Bitmap framebuffer;
    Thread renderThread = null;
    SurfaceHolder holder;
    volatile boolean running = false;
   
    public AndroidFastRenderView(AndroidGame game, Bitmap framebuffer) {
        super(game);
        this.game = game;
        this.framebuffer = framebuffer;
        this.holder = getHolder();

    }

    public void resume() {
        running = true;
        renderThread = new Thread(this);
        renderThread.start();  

    }      
   
    public void run() {
        Rect dstRect = new Rect();
        long startTime = System.nanoTime();
        while(running) {  
            if(!holder.getSurface().isValid())
                continue;          
           

            float deltaTime = (System.nanoTime() - startTime) / 10000000.000f;
            startTime = System.nanoTime();
           
            if (deltaTime > 3.15){
                deltaTime = (float) 3.15;
           }
     

            game.getCurrentScreen().update(deltaTime);
            game.getCurrentScreen().paint(deltaTime);
         
           
           
            Canvas canvas = holder.lockCanvas();
            canvas.getClipBounds(dstRect);
            canvas.drawBitmap(framebuffer, null, dstRect, null);                          
            holder.unlockCanvasAndPost(canvas);
           
           
        }
    }

    public void pause() {                        
        running = false;                        
        while(true) {
            try {
                renderThread.join();
                break;
            } catch (InterruptedException e) {
                // retry
            }
           
        }
    }    
   
 
}

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