我是opengl的新手所以我正在使用android开发者的指南。我已经完成了他们所说的所有事情，但它显示了一个错误强制关闭。
在我的日志cat文件中，它显示以下错误
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)
我的清单文件如下
<?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>
我的活动课程如下
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());
}
}
我的表面类如下
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;
}
}
答案 0 :(得分：2)
您收到此错误的原因是您正在测试的设备不支持OpenGL ES 2.0。您可能正在模拟器上测试它，它不支持该版本的OpenGL。
只需尝试在真实设备上进行测试，您就会发现它可以正常使用。
答案 1 :(得分：1)
由于任何Android虚拟设备不支持3d图像的原因而发生此问题。如果任何人想要运行3d图像，那么他或她应该使用任何物理设备。