content: /****************************************************************************
  Copyright (c) 2010-2011 cocos2d-x.org
  
  http://www.cocos2d-x.org
  
  Permission is hereby granted, free of charge, to any person obtaining a copy
  of this software and associated documentation files (the "Software"), to deal
  in the Software without restriction, including without limitation the rights
  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  copies of the Software, and to permit persons to whom the Software is
  furnished to do so, subject to the following conditions:
  
  The above copyright notice and this permission notice shall be included in
  all copies or substantial portions of the Software.
  
  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  THE SOFTWARE.
   ****************************************************************************/
  package org.cocos2dx.lib;
  
  import javax.microedition.khronos.egl.EGLConfig;
  import javax.microedition.khronos.opengles.GL10;
  
  import android.opengl.GLSurfaceView;
  
  public class Cocos2dxRenderer implements GLSurfaceView.Renderer {
  	// ===========================================================
  	// Constants
  	// ===========================================================
  
  	private final static long NANOSECONDSPERSECOND = 1000000000L;
  	private final static long NANOSECONDSPERMICROSECOND = 1000000;
  
  	private static long sAnimationInterval = (long) (1.0 / 60 * Cocos2dxRenderer.NANOSECONDSPERSECOND);
  
  	// ===========================================================
  	// Fields
  	// ===========================================================
  
  	private long mLastTickInNanoSeconds;
  	private int mScreenWidth;
  	private int mScreenHeight;
  
  	// ===========================================================
  	// Constructors
  	// ===========================================================
  
  	// ===========================================================
  	// Getter & Setter
  	// ===========================================================
  
  	public static void setAnimationInterval(final double pAnimationInterval) {
  		Cocos2dxRenderer.sAnimationInterval = (long) (pAnimationInterval * Cocos2dxRenderer.NANOSECONDSPERSECOND);
  	}
  
  	public void setScreenWidthAndHeight(final int pSurfaceWidth, final int pSurfaceHeight) {
  		this.mScreenWidth = pSurfaceWidth;
  		this.mScreenHeight = pSurfaceHeight;
  	}
  
  	// ===========================================================
  	// Methods for/from SuperClass/Interfaces
  	// ===========================================================
  
  	public void onSurfaceCreated(final GL10 pGL10, final EGLConfig pEGLConfig) {
  		Cocos2dxRenderer.nativeInit(this.mScreenWidth, this.mScreenHeight);
  		this.mLastTickInNanoSeconds = System.nanoTime();
  	}
  
  	public void onSurfaceChanged(final GL10 pGL10, final int pWidth, final int pHeight) {
  	}
  
  	public void onDrawFrame(final GL10 gl) {
  		final long nowInNanoSeconds = System.nanoTime();
  		final long interval = nowInNanoSeconds - this.mLastTickInNanoSeconds;
  
  		// should render a frame when onDrawFrame() is called or there is a
  		// "ghost"
  		Cocos2dxRenderer.nativeRender();
  
  		// fps controlling
  		if (interval < Cocos2dxRenderer.sAnimationInterval) {
  			try {
  				// because we render it before, so we should sleep twice time interval
  				Thread.sleep((Cocos2dxRenderer.sAnimationInterval - interval) * 2 / Cocos2dxRenderer.NANOSECONDSPERMICROSECOND);
  			} catch (final Exception e) {
  			}
  		}
  
  		this.mLastTickInNanoSeconds = nowInNanoSeconds;
  	}
  
  	// ===========================================================
  	// Methods
  	// ===========================================================
  
  	private static native void nativeTouchesBegin(final int pID, final float pX, final float pY);
  	private static native void nativeTouchesEnd(final int pID, final float pX, final float pY);
  	private static native void nativeTouchesMove(final int[] pIDs, final float[] pXs, final float[] pYs);
  	private static native void nativeTouchesCancel(final int[] pIDs, final float[] pXs, final float[] pYs);
  	private static native boolean nativeKeyDown(final int pKeyCode);
  	private static native void nativeRender();
  	private static native void nativeInit(final int pWidth, final int pHeight);
  	private static native void nativeOnPause();
  	private static native void nativeOnResume();
  
  	public void handleActionDown(final int pID, final float pX, final float pY) {
  		Cocos2dxRenderer.nativeTouchesBegin(pID, pX, pY);
  	}
  
  	public void handleActionUp(final int pID, final float pX, final float pY) {
  		Cocos2dxRenderer.nativeTouchesEnd(pID, pX, pY);
  	}
  
  	public void handleActionCancel(final int[] pIDs, final float[] pXs, final float[] pYs) {
  		Cocos2dxRenderer.nativeTouchesCancel(pIDs, pXs, pYs);
  	}
  
  	public void handleActionMove(final int[] pIDs, final float[] pXs, final float[] pYs) {
  		Cocos2dxRenderer.nativeTouchesMove(pIDs, pXs, pYs);
  	}
  
  	public void handleKeyDown(final int pKeyCode) {
  		Cocos2dxRenderer.nativeKeyDown(pKeyCode);
  	}
  
  	public void handleOnPause() {
  		Cocos2dxRenderer.nativeOnPause();
  	}
  
  	public void handleOnResume() {
  		Cocos2dxRenderer.nativeOnResume();
  	}
  
  	private static native void nativeInsertText(final String pText);
  	private static native void nativeDeleteBackward();
  	private static native String nativeGetContentText();
  
  	public void handleInsertText(final String pText) {
  		Cocos2dxRenderer.nativeInsertText(pText);
  	}
  
  	public void handleDeleteBackward() {
  		Cocos2dxRenderer.nativeDeleteBackward();
  	}
  
  	public String getContentText() {
  		return Cocos2dxRenderer.nativeGetContentText();
  	}
  
  	// ===========================================================
  	// Inner and Anonymous Classes
  	// ===========================================================
  }
  