triangle opengl in android

私はOpenGLを初めて使っていますので、私はアンドロイドの開発者のガイドを使用しています。私は彼らが言うすべてのことを行っていますが、強制的に閉じるようにエラーが表示されています。私のログの猫はそれをファイルにtriangle opengl in android

は私のマニフェストファイルは

import android.app.Activity; 
import android.content.Context; 
import android.opengl.GLSurfaceView; 
import android.os.Bundle; 

public class HelloOpenGLES20 extends Activity { 

    private GLSurfaceView mGLView; 

    @Override 
    public void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 

     // Create a GLSurfaceView instance and set it 
     // as the ContentView for this Activity 
     mGLView = new HelloOpenGLES20SurfaceView(this); 
     setContentView(mGLView); 
    } 

    @Override 
    protected void onPause() { 
     super.onPause(); 
     // The following call pauses the rendering thread. 
     // If your OpenGL application is memory intensive, 
     // you should consider de-allocating objects that 
     // consume significant memory here. 
     mGLView.onPause(); 
    } 

    @Override 
    protected void onResume() { 
     super.onResume(); 
     // The following call resumes a paused rendering thread. 
     // If you de-allocated graphic objects for onPause() 
     // this is a good place to re-allocate them. 
     mGLView.onResume(); 
    } 
} 

class HelloOpenGLES20SurfaceView extends GLSurfaceView { 

    public HelloOpenGLES20SurfaceView(Context context){ 
     super(context); 

     // Create an OpenGL ES 2.0 context. 
     setEGLContextClientVersion(2); 
     // Set the Renderer for drawing on the GLSurfaceView 
     setRenderer(new HelloOpenGLES20Renderer()); 
    } 
}

私の表面に従うように私の活動のクラスがある従う

<?xml version="1.0" encoding="utf-8"?> 
<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
    package="com.example.opengl" 
    android:versionCode="1" 
    android:versionName="1.0" > 

    <uses-sdk android:minSdkVersion="8" /> 
    <uses-feature android:glEsVersion="0x00020000" android:required="true" /> 

    <application 
     android:icon="@drawable/ic_launcher" 
     android:label="@string/app_name" > 
     <activity 
      android:name=".HelloOpenGLES20" 
      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> 

</manifest>

ようです

03-30 20:13:14.342: E/AndroidRuntime(317): FATAL EXCEPTION: GLThread 8 
03-30 20:13:14.342: E/AndroidRuntime(317): java.lang.IllegalArgumentException: No configs match configSpec 
03-30 20:13:14.342: E/AndroidRuntime(317): at android.opengl.GLSurfaceView$BaseConfigChooser.chooseConfig(GLSurfaceView.java:760) 
03-30 20:13:14.342: E/AndroidRuntime(317): at android.opengl.GLSurfaceView$EglHelper.start(GLSurfaceView.java:916) 
03-30 20:13:14.342: E/AndroidRuntime(317): at android.opengl.GLSurfaceView$GLThread.guardedRun(GLSurfaceView.java:1246) 
03-30 20:13:14.342: E/AndroidRuntime(317): at android.opengl.GLSurfaceView$GLThread.run(GLSurfaceView.java:1116)

次のエラーを示していますクラスは以下の通りです

import java.nio.ByteBuffer; 
import java.nio.ByteOrder; 
import java.nio.FloatBuffer; 

import javax.microedition.khronos.egl.EGLConfig; 
import javax.microedition.khronos.opengles.GL10; 

import android.opengl.GLES20; 
import android.opengl.GLSurfaceView; 

public class HelloOpenGLES20Renderer implements GLSurfaceView.Renderer { 

    private FloatBuffer triangleVB; 

    private final String vertexShaderCode = 
       "attribute vec4 vPosition; \n" + 
       "void main(){    \n" + 
       " gl_Position = vPosition; \n" + 
       "}       \n"; 

      private final String fragmentShaderCode = 
       "precision mediump float; \n" + 
       "void main(){    \n" + 
       " gl_FragColor = vec4 (0.63671875, 0.76953125, 0.22265625, 1.0); \n" + 
       "}       \n"; 

      private int mProgram; 
      private int maPositionHandle; 

    public void onSurfaceCreated(GL10 unused, EGLConfig config) { 

     // Set the background frame color 
     GLES20.glClearColor(0.5f, 0.5f, 0.5f, 1.0f); 

    // initialize the triangle vertex array 
     initShapes(); 

     int vertexShader = loadShader(GLES20.GL_VERTEX_SHADER, vertexShaderCode); 
     int fragmentShader = loadShader(GLES20.GL_FRAGMENT_SHADER, fragmentShaderCode); 

     mProgram = GLES20.glCreateProgram();    // create empty OpenGL Program 
     GLES20.glAttachShader(mProgram, vertexShader); // add the vertex shader to program 
     GLES20.glAttachShader(mProgram, fragmentShader); // add the fragment shader to program 
     GLES20.glLinkProgram(mProgram);     // creates OpenGL program executables 

     // get handle to the vertex shader's vPosition member 
     maPositionHandle = GLES20.glGetAttribLocation(mProgram, "vPosition"); 
    } 

    public void onDrawFrame(GL10 unused) { 

     // Redraw background color 
     GLES20.glClear(GLES20.GL_COLOR_BUFFER_BIT | GLES20.GL_DEPTH_BUFFER_BIT); 
     // Add program to OpenGL environment 
     GLES20.glUseProgram(mProgram); 

     // Prepare the triangle data 
     GLES20.glVertexAttribPointer(maPositionHandle, 3, GLES20.GL_FLOAT, false, 12, triangleVB); 
     GLES20.glEnableVertexAttribArray(maPositionHandle); 

     // Draw the triangle 
     GLES20.glDrawArrays(GLES20.GL_TRIANGLES, 0, 3); 
    } 

    public void onSurfaceChanged(GL10 unused, int width, int height) { 
     GLES20.glViewport(0, 0, width, height); 
    } 

    private void initShapes(){ 

     float triangleCoords[] = { 
      // X, Y, Z 
      -0.5f, -0.25f, 0, 
      0.5f, -0.25f, 0, 
      0.0f, 0.559016994f, 0 
     }; 

     // initialize vertex Buffer for triangle 
     ByteBuffer vbb = ByteBuffer.allocateDirect(
       // (# of coordinate values * 4 bytes per float) 
       triangleCoords.length * 4); 
     vbb.order(ByteOrder.nativeOrder());// use the device hardware's native byte order 
     triangleVB = vbb.asFloatBuffer(); // create a floating point buffer from the ByteBuffer 
     triangleVB.put(triangleCoords); // add the coordinates to the FloatBuffer 
     triangleVB.position(0);   // set the buffer to read the first coordinate 

    } 

    private int loadShader(int type, String shaderCode){ 

     // create a vertex shader type (GLES20.GL_VERTEX_SHADER) 
     // or a fragment shader type (GLES20.GL_FRAGMENT_SHADER) 
     int shader = GLES20.glCreateShader(type); 

     // add the source code to the shader and compile it 
     GLES20.glShaderSource(shader, shaderCode); 
     GLES20.glCompileShader(shader); 

     return shader; 
    } 

}

出典

2012-03-30 Ashishsingh