初次提交

2022-09-19 18:05:01 +08:00
commit 57051fc44b
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+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+	<classpathentry kind="src" path="src"/>
+	<classpathentry kind="src" path="gen"/>
+	<classpathentry kind="con" path="com.android.ide.eclipse.adt.ANDROID_FRAMEWORK"/>
+	<classpathentry kind="output" path="bin"/>
+</classpath>
@@ -0,0 +1,33 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>Sample16_5</name>
+	<comment></comment>
+	<projects>
+	</projects>
+	<buildSpec>
+		<buildCommand>
+			<name>com.android.ide.eclipse.adt.ResourceManagerBuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+		<buildCommand>
+			<name>com.android.ide.eclipse.adt.PreCompilerBuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.jdt.core.javabuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+		<buildCommand>
+			<name>com.android.ide.eclipse.adt.ApkBuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+	</buildSpec>
+	<natures>
+		<nature>com.android.ide.eclipse.adt.AndroidNature</nature>
+		<nature>org.eclipse.jdt.core.javanature</nature>
+	</natures>
+</projectDescription>
@@ -0,0 +1,12 @@
+#Wed Jan 05 21:56:15 CST 2011
+eclipse.preferences.version=1
+org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.6
+org.eclipse.jdt.core.compiler.codegen.unusedLocal=preserve
+org.eclipse.jdt.core.compiler.compliance=1.6
+org.eclipse.jdt.core.compiler.debug.lineNumber=generate
+org.eclipse.jdt.core.compiler.debug.localVariable=generate
+org.eclipse.jdt.core.compiler.debug.sourceFile=generate
+org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
+org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
+org.eclipse.jdt.core.compiler.source=1.6
@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+      android:versionCode="1"
+      android:versionName="1.0" package="com.bn.Sample16_5">
+    <application android:icon="@drawable/icon" android:label="@string/app_name">
+        <activity android:name=".MyActivity"
+                  android:label="@string/app_name">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+    <uses-sdk android:targetSdkVersion="8"></uses-sdk>
+</manifest> 
@@ -0,0 +1,8 @@
+//焰火粒子着色器
+precision mediump float;
+uniform vec3 uColor;//粒子颜色
+void main()                         
+{
+  //给此片元颜色值 
+  gl_FragColor = vec4(uColor,1.0);
+}              
@@ -0,0 +1,15 @@
+uniform mat4 uMVPMatrix; //总变换矩阵
+uniform float uPointSize;//点尺寸
+uniform float uTime;
+attribute vec3 aVelocity;  //顶点速度
+void main()     
+{
+   float currTime=mod(uTime,10.0);
+   float px=aVelocity.x*currTime;
+   float py=aVelocity.y*currTime-0.5*1.5*currTime*currTime+3.0;
+   float pz=aVelocity.z*currTime;
+   //根据总变换矩阵计算此次绘制此顶点位置                         		
+   gl_Position = uMVPMatrix * vec4(px,py,pz,1); 
+   //设置粒子尺寸
+   gl_PointSize=uPointSize;  
+}
@@ -0,0 +1,13 @@
+# This file is automatically generated by Android Tools.
+# Do not modify this file -- YOUR CHANGES WILL BE ERASED!
+# 
+# This file must be checked in Version Control Systems.
+# 
+# To customize properties used by the Ant build system use,
+# "build.properties", and override values to adapt the script to your
+# project structure.
+
+# Indicates whether an apk should be generated for each density.
+split.density=false
+# Project target.
+target=android-8
@@ -0,0 +1,19 @@
+/* AUTO-GENERATED FILE.  DO NOT MODIFY.
+ *
+ * This class was automatically generated by the
+ * aapt tool from the resource data it found.  It
+ * should not be modified by hand.
+ */
+
+package com.bn.Sample16_5;
+
+public final class R {
+    public static final class attr {
+    }
+    public static final class drawable {
+        public static final int icon=0x7f020000;
+    }
+    public static final class string {
+        public static final int app_name=0x7f030000;
+    }
+}
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="app_name">Sample16_5</string>
+</resources>
@@ -0,0 +1,113 @@
+package com.bn.Sample16_5;
+import java.nio.ByteBuffer;
+import java.nio.ByteOrder;
+import java.nio.FloatBuffer;
+import android.opengl.GLES20;
+
+//用户绘制粒子系统的类
+public class GrainForDraw {
+	
+	private FloatBuffer   mVelocityBuffer;//顶点速度数据缓冲
+    float scale;	//点尺寸
+    
+    String mVertexShader;	//顶点着色器    	 
+    String mFragmentShader;	//片元着色器
+    
+    int mProgram;			//自定义渲染管线着色器程序id
+    int muMVPMatrixHandle;	//总变换矩阵引用   
+    int uPointSizeHandle;	//顶点尺寸参数引用
+    int uColorHandle;		//顶点颜色参数引用
+    int uTimeHandle;		//顶点颜色参数引用
+    int vCount=0;
+
+    int maVelocityHandle; 	//顶点速度属性引用 
+    float timeLive=0;
+    long timeStamp=0;
+    
+    public GrainForDraw(MySurfaceView mv,float scale,int vCount)
+    {
+    	this.scale=scale;
+    	this.vCount=vCount;
+    	initVertexData(vCount);	//调用初始化顶点数据的initVertexData方法
+    	initShader(mv);		//调用初始化着色器的initShader方法
+    }
+    
+    //初始化顶点数据的initVertexData方法
+    public void initVertexData(int vCount){
+        float[] velocity=new float[vCount*3];
+        for(int i=0;i<vCount;i++){
+        	double fwj=2*Math.PI*Math.random();
+        	double yj=0.35*Math.PI*Math.random()+0.15*Math.PI;
+        	final double vTotal=1.5+1.5*Math.random();		//总的速度
+        	double vy=vTotal*Math.sin(yj);		//y方向上的速度
+        	double vx=vTotal*Math.cos(yj)*Math.sin(fwj);	//x方向上的速度
+        	double vz=vTotal*Math.cos(yj)*Math.cos(fwj);	//z方向上的速度
+        	velocity[i*3]=(float)vx;
+        	velocity[i*3+1]=(float)vy;
+        	velocity[i*3+2]=(float)vz;
+        }
+    	
+        //创建顶点速度数据缓冲
+        ByteBuffer vbb = ByteBuffer.allocateDirect(velocity.length*4);
+        vbb.order(ByteOrder.nativeOrder());//设置字节顺序
+        mVelocityBuffer = vbb.asFloatBuffer();//转换为int型缓冲
+        mVelocityBuffer.put(velocity);//向缓冲区中放入顶点坐标数据
+        mVelocityBuffer.position(0);//设置缓冲区起始位置
+    }
+
+    //初始化着色器的initShader方法
+    public void initShader(MySurfaceView mv)
+    {
+    	//加载顶点着色器的脚本内容       
+        mVertexShader=ShaderUtil.loadFromAssetsFile("vertex_yh.sh", mv.getResources());
+        ShaderUtil.checkGlError("==ss==");   
+        //加载片元着色器的脚本内容
+        mFragmentShader=ShaderUtil.loadFromAssetsFile("frag_yh.sh", mv.getResources());  
+        //基于顶点着色器与片元着色器创建程序
+        ShaderUtil.checkGlError("==ss==");      
+        mProgram = ShaderUtil.createProgram(mVertexShader, mFragmentShader);
+        //获取程序中顶点速度属性引用id  
+        maVelocityHandle = GLES20.glGetAttribLocation(mProgram, "aVelocity");        
+        //获取程序中总变换矩阵引用id
+        muMVPMatrixHandle = GLES20.glGetUniformLocation(mProgram, "uMVPMatrix"); 
+        //获取顶点尺寸参数引用
+        uPointSizeHandle = GLES20.glGetUniformLocation(mProgram, "uPointSize"); 
+        //获取顶点颜色参数引用
+        uColorHandle = GLES20.glGetUniformLocation(mProgram, "uColor"); 
+        //获取顶点颜色参数引用
+        uTimeHandle=GLES20.glGetUniformLocation(mProgram, "uTime"); 
+
+    }
+    public void drawSelf()
+    {  
+    	long currTimeStamp=System.nanoTime()/1000000;
+    	if(currTimeStamp-timeStamp>=10){
+    		timeLive+=0.02f;
+    		timeStamp=currTimeStamp;
+    	}
+    	
+    	//制定使用某套着色器程序
+   	    GLES20.glUseProgram(mProgram);
+        //将最终变换矩阵传入着色器程序
+        GLES20.glUniformMatrix4fv(muMVPMatrixHandle, 1, false, MatrixState.getFinalMatrix(), 0);  
+        //将顶点尺寸传入着色器程序
+        GLES20.glUniform1f(uPointSizeHandle, scale);
+        //将时间传入着色器程序
+        GLES20.glUniform1f(uTimeHandle, timeLive);    
+        //将顶点颜色传入着色器程序
+        GLES20.glUniform3fv(uColorHandle, 1, new float[]{1,1,1}, 0);
+        //传入顶点速度数据    
+        GLES20.glVertexAttribPointer(
+        		maVelocityHandle,   
+        		3, 
+        		GLES20.GL_FLOAT, 
+        		false,
+                3*4, 
+                mVelocityBuffer   
+        );
+        //允许顶点位置数据数组
+        GLES20.glEnableVertexAttribArray(maVelocityHandle);         
+        //绘制点    
+        GLES20.glDrawArrays(GLES20.GL_POINTS, 0, vCount); 
+    }
+}
@@ -0,0 +1,182 @@
+package com.bn.Sample16_5;
+import java.nio.ByteBuffer;
+import java.nio.ByteOrder;
+import java.nio.FloatBuffer;
+import android.opengl.Matrix;
+
+//存储系统矩阵状态的类
+public class MatrixState 
+{  
+	private static float[] mProjMatrix = new float[16];//4x4矩阵 投影用
+    private static float[] mVMatrix = new float[16];//摄像机位置朝向9参数矩阵   
+    private static float[] currMatrix;//当前变换矩阵
+    public static float[] lightLocation=new float[]{0,0,0};//定位光光源位置
+    public static FloatBuffer cameraFB;    
+    public static FloatBuffer lightPositionFB;
+      
+    //保护变换矩阵的栈
+    static float[][] mStack=new float[10][16];
+    static int stackTop=-1;
+    
+    public static void setInitStack()//获取不变换初始矩阵
+    {
+    	currMatrix=new float[16];
+    	Matrix.setRotateM(currMatrix, 0, 0, 1, 0, 0);
+    }
+    
+    public static void pushMatrix()//保护变换矩阵
+    {
+    	stackTop++;
+    	for(int i=0;i<16;i++)
+    	{
+    		mStack[stackTop][i]=currMatrix[i];
+    	}
+    }
+    
+    public static void popMatrix()//恢复变换矩阵
+    {
+    	for(int i=0;i<16;i++)
+    	{
+    		currMatrix[i]=mStack[stackTop][i];
+    	}
+    	stackTop--;
+    }
+    
+    public static void translate(float x,float y,float z)//设置沿xyz轴移动
+    {
+    	Matrix.translateM(currMatrix, 0, x, y, z);
+    }
+    
+    public static void rotate(float angle,float x,float y,float z)//设置绕xyz轴移动
+    {
+    	Matrix.rotateM(currMatrix,0,angle,x,y,z);
+    }
+    
+    public static void scale(float x,float y,float z)
+    {
+    	Matrix.scaleM(currMatrix,0, x, y, z);
+    }
+    
+    //插入自带矩阵
+    public static void matrix(float[] self)
+    {
+    	float[] result=new float[16];
+    	Matrix.multiplyMM(result,0,currMatrix,0,self,0);
+    	currMatrix=result;
+    }
+    
+    
+    //设置摄像机
+    static ByteBuffer llbb= ByteBuffer.allocateDirect(3*4);
+    static float[] cameraLocation=new float[3];//摄像机位置
+    public static void setCamera
+    (
+    		float cx,	//摄像机位置x
+    		float cy,   //摄像机位置y
+    		float cz,   //摄像机位置z
+    		float tx,   //摄像机目标点x
+    		float ty,   //摄像机目标点y
+    		float tz,   //摄像机目标点z
+    		float upx,  //摄像机UP向量X分量
+    		float upy,  //摄像机UP向量Y分量
+    		float upz   //摄像机UP向量Z分量		
+    )
+    {
+        	Matrix.setLookAtM
+            (
+            		mVMatrix, 
+            		0, 
+            		cx,
+            		cy,
+            		cz,
+            		tx,
+            		ty,
+            		tz,
+            		upx,
+            		upy,
+            		upz
+            );
+        	
+        	cameraLocation[0]=cx;
+        	cameraLocation[1]=cy;
+        	cameraLocation[2]=cz;
+        	
+        	llbb.clear();
+            llbb.order(ByteOrder.nativeOrder());//设置字节顺序
+            cameraFB=llbb.asFloatBuffer();
+            cameraFB.put(cameraLocation);
+            cameraFB.position(0);  
+    }
+    
+    //设置透视投影参数
+    public static void setProjectFrustum
+    ( 
+    	float left,		//near面的left
+    	float right,    //near面的right
+    	float bottom,   //near面的bottom
+    	float top,      //near面的top
+    	float near,		//near面距离
+    	float far       //far面距离
+    )
+    {
+    	Matrix.frustumM(mProjMatrix, 0, left, right, bottom, top, near, far);
+    }
+    
+    //设置正交投影参数
+    public static void setProjectOrtho
+    (
+    	float left,		//near面的left
+    	float right,    //near面的right
+    	float bottom,   //near面的bottom
+    	float top,      //near面的top
+    	float near,		//near面距离
+    	float far       //far面距离
+    )
+    {    	
+    	Matrix.orthoM(mProjMatrix, 0, left, right, bottom, top, near, far);
+    }   
+    //获取具体物体的总变换矩阵
+    static float[] mMVPMatrix=new float[16];
+    public static float[] getFinalMatrix()
+    {	
+    	Matrix.multiplyMM(mMVPMatrix, 0, mVMatrix, 0, currMatrix, 0);
+        Matrix.multiplyMM(mMVPMatrix, 0, mProjMatrix, 0, mMVPMatrix, 0);        
+        return mMVPMatrix;
+    }
+    
+    //获取具体物体的变换矩阵
+    public static float[] getMMatrix()
+    {       
+        return currMatrix;
+    }
+    
+    //获取投影矩阵
+    public static float[] getProjMatrix()
+    {
+		return mProjMatrix;
+    }
+    
+    //获取摄像机朝向的矩阵
+    public static float[] getCaMatrix()
+    {
+		return mVMatrix;
+    }
+    
+    
+    
+    //设置灯光位置的方法
+    static ByteBuffer llbbL = ByteBuffer.allocateDirect(3*4);
+    public static void setLightLocation(float x,float y,float z)
+    {
+    	llbbL.clear();
+    	
+    	lightLocation[0]=x;
+    	lightLocation[1]=y;
+    	lightLocation[2]=z;
+    	
+        llbbL.order(ByteOrder.nativeOrder());//设置字节顺序
+        lightPositionFB=llbbL.asFloatBuffer();
+        lightPositionFB.put(lightLocation);
+        lightPositionFB.position(0);
+    }
+}
@@ -0,0 +1,43 @@
+package com.bn.Sample16_5;
+import android.app.Activity;
+import android.content.pm.ActivityInfo;
+import android.os.Bundle;
+import android.view.Window;
+import android.view.WindowManager;
+
+public class MyActivity extends Activity {
+	private MySurfaceView mGLSurfaceView;
+    @Override
+    protected void onCreate(Bundle savedInstanceState) 
+    {
+        super.onCreate(savedInstanceState);         
+        //设置为全屏
+        requestWindowFeature(Window.FEATURE_NO_TITLE); 
+		getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN ,  
+		              WindowManager.LayoutParams.FLAG_FULLSCREEN);
+		//设置为竖屏模式
+		setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
+		//切换到主界面
+			
+		//初始化GLSurfaceView
+        mGLSurfaceView = new MySurfaceView(this);
+        setContentView(mGLSurfaceView);	
+        mGLSurfaceView.requestFocus();//获取焦点
+        mGLSurfaceView.setFocusableInTouchMode(true);//设置为可触控  
+    }
+
+    @Override
+    protected void onResume() {
+        super.onResume();
+        mGLSurfaceView.onResume();
+    }
+
+    @Override
+    protected void onPause() {
+        super.onPause();
+        mGLSurfaceView.onPause();
+    }    
+}
+
+
+
@@ -0,0 +1,76 @@
+package com.bn.Sample16_5;
+
+import android.opengl.GLSurfaceView;
+import android.opengl.GLES20;
+import android.util.Log;
+
+import javax.microedition.khronos.egl.EGLConfig;
+import javax.microedition.khronos.opengles.GL10;
+import android.content.Context;
+
+class MySurfaceView extends GLSurfaceView 
+{
+    private SceneRenderer mRenderer;//场景渲染器
+    
+	public MySurfaceView(Context context) {
+        super(context);
+        this.setEGLContextClientVersion(2); //设置使用OPENGL ES2.0
+        mRenderer = new SceneRenderer();	//创建场景渲染器
+        setRenderer(mRenderer);				//设置渲染器		        
+        setRenderMode(GLSurfaceView.RENDERMODE_CONTINUOUSLY);//设置渲染模式为主动渲染   
+    }
+
+	private class SceneRenderer implements GLSurfaceView.Renderer 
+    {   
+        GrainForDraw grainForDraw;	//粒子系统
+		
+        //测试刷帧频率的代码
+		long olds;
+    	long currs;
+        
+        public void onDrawFrame(GL10 gl) 
+        {
+        	//注释掉的为测试刷帧频率的代码
+        	currs=System.nanoTime();			
+        	Log.d("FPS", (1000000000.0/(currs-olds)+"FPS"));
+			olds=currs;
+        	
+        	//清除深度缓冲与颜色缓冲
+            GLES20.glClear( GLES20.GL_DEPTH_BUFFER_BIT | GLES20.GL_COLOR_BUFFER_BIT);
+            //保护现场
+            MatrixState.pushMatrix();
+            //绘制粒子系统
+            grainForDraw.drawSelf();
+            //恢复现场
+            MatrixState.popMatrix();
+        }  
+
+        public void onSurfaceChanged(GL10 gl, int width, int height) {
+            //设置视窗大小及位置 
+        	GLES20.glViewport(0, 0, width, height); 
+        	//计算GLSurfaceView的宽高比
+            float ratio = (float) width / height;
+            //调用此方法计算产生透视投影矩阵
+            MatrixState.setProjectFrustum(-ratio, ratio, -1, 1, 1, 1000);
+            //调用此方法产生摄像机9参数位置矩阵
+            MatrixState.setCamera(0,0,20,0,0,0,0f,1.0f,0.0f);
+        }
+        
+        public void onSurfaceCreated(GL10 gl, EGLConfig config) {
+            //设置屏幕背景色RGBA
+            GLES20.glClearColor(0.0f,0.0f,0.0f,1.0f);
+            //创建焰火粒子系统
+            grainForDraw=new GrainForDraw(MySurfaceView.this,
+            			2,		//点的大小
+            			8000	//点的个数
+            			);
+            
+            //打开深度检测  
+            GLES20.glEnable(GLES20.GL_DEPTH_TEST);
+            //关闭背面剪裁   
+            GLES20.glEnable(GLES20.GL_CULL_FACE);
+            //初始化变换矩阵
+            MatrixState.setInitStack();
+        }
+    }
+}
@@ -0,0 +1,126 @@
+package com.bn.Sample16_5;
+
+import java.io.ByteArrayOutputStream;
+import java.io.InputStream;
+
+import android.content.res.Resources;
+import android.opengl.GLES20;
+import android.util.Log;
+
+//加载顶点Shader与片元Shader的工具类
+public class ShaderUtil 
+{
+   //加载制定shader的方法
+   public static int loadShader
+   (
+		 int shaderType, //shader的类型  GLES20.GL_VERTEX_SHADER   GLES20.GL_FRAGMENT_SHADER
+		 String source   //shader的脚本字符串
+   ) 
+   {
+	    //创建一个新shader
+        int shader = GLES20.glCreateShader(shaderType);
+        //若创建成功则加载shader
+        if (shader != 0) 
+        {
+        	//加载shader的源代码
+            GLES20.glShaderSource(shader, source);
+            //编译shader
+            GLES20.glCompileShader(shader);
+            //存放编译成功shader数量的数组
+            int[] compiled = new int[1];
+            //获取Shader的编译情况
+            GLES20.glGetShaderiv(shader, GLES20.GL_COMPILE_STATUS, compiled, 0);
+            if (compiled[0] == 0) 
+            {//若编译失败则显示错误日志并删除此shader
+                Log.e("ES20_ERROR", "Could not compile shader " + shaderType + ":");
+                Log.e("ES20_ERROR", GLES20.glGetShaderInfoLog(shader));
+                GLES20.glDeleteShader(shader);
+                shader = 0;      
+            }  
+        }
+        return shader;
+    }
+    
+   //创建shader程序的方法
+   public static int createProgram(String vertexSource, String fragmentSource) 
+   {
+	    //加载顶点着色器
+        int vertexShader = loadShader(GLES20.GL_VERTEX_SHADER, vertexSource);
+        if (vertexShader == 0) 
+        {
+            return 0;
+        }
+        
+        //加载片元着色器
+        int pixelShader = loadShader(GLES20.GL_FRAGMENT_SHADER, fragmentSource);
+        if (pixelShader == 0) 
+        {
+            return 0;
+        }
+
+        //创建程序
+        int program = GLES20.glCreateProgram();
+        //若程序创建成功则向程序中加入顶点着色器与片元着色器
+        if (program != 0) 
+        {
+        	//向程序中加入顶点着色器
+            GLES20.glAttachShader(program, vertexShader);
+            checkGlError("glAttachShader");
+            //向程序中加入片元着色器
+            GLES20.glAttachShader(program, pixelShader);
+            checkGlError("glAttachShader");
+            //链接程序
+            GLES20.glLinkProgram(program);
+            //存放链接成功program数量的数组
+            int[] linkStatus = new int[1];
+            //获取program的链接情况
+            GLES20.glGetProgramiv(program, GLES20.GL_LINK_STATUS, linkStatus, 0);
+            //若链接失败则报错并删除程序
+            if (linkStatus[0] != GLES20.GL_TRUE) 
+            {
+                Log.e("ES20_ERROR", "Could not link program: ");
+                Log.e("ES20_ERROR", GLES20.glGetProgramInfoLog(program));
+                GLES20.glDeleteProgram(program);
+                program = 0;
+            }
+        }
+        return program;
+    }
+    
+   //检查每一步操作是否有错误的方法 
+   public static void checkGlError(String op) 
+   {
+        int error;
+        while ((error = GLES20.glGetError()) != GLES20.GL_NO_ERROR) 
+        {
+            Log.e("ES20_ERROR", op + ": glError " + error);
+            throw new RuntimeException(op + ": glError " + error);
+        }
+   }
+   
+   //从sh脚本中加载shader内容的方法
+   public static String loadFromAssetsFile(String fname,Resources r)
+   {
+   	String result=null;    	
+   	try
+   	{
+   		InputStream in=r.getAssets().open(fname);
+			int ch=0;
+		    ByteArrayOutputStream baos = new ByteArrayOutputStream();
+		    while((ch=in.read())!=-1)
+		    {
+		      	baos.write(ch);
+		    }      
+		    byte[] buff=baos.toByteArray();
+		    baos.close();
+		    in.close();
+   		result=new String(buff,"UTF-8"); 
+   		result=result.replaceAll("\\r\\n","\n");
+   	}
+   	catch(Exception e)
+   	{
+   		e.printStackTrace();
+   	}   
+   	return result;
+   }
+}