1

我有以下渲染器代码：

package hello.project;

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

import android.content.Context;
import android.opengl.GLSurfaceView.Renderer;
import android.opengl.GLU;

public class HelloOpenGLES10Renderer implements Renderer {

private Square      square;
private Square2         square2;// the square
private Context     context;
private Context     context2;
public static int w,h;


/** Constructor to set the handed over context */
public HelloOpenGLES10Renderer(Context context) {
    this.square     = new Square();
    this.square2        = new Square2();
    this.context=context;


}

public void onDrawFrame(GL10 gl) {
    /*Square.loadGLTexture(gl, this.context,Square.getSex()); 
    Square2.loadGLTexture(gl, this.context,Square2.getHair()); 
    gl.glClear(GL10.GL_COLOR_BUFFER_BIT | GL10.GL_DEPTH_BUFFER_BIT);
    gl.glMatrixMode(GL10.GL_MODELVIEW);
    gl.glLoadIdentity(); 
    GLU.gluPerspective(gl, 45.0f, (float)w / (float)h, 0.1f, 100.0f);
    GLU.gluLookAt(gl, 0, 1, 5, 0f, 0f, 0f, 0f, 1.0f, 0.0f);
    gl.glColor4f(1.0f, 1.0f, 1.0f, 2.0f);
    square.draw(gl);
    square2.draw(gl);*/

    // clear Screen and Depth Buffer
    Square.loadGLTexture(gl, this.context,Square.getSex()); 
    Square2.loadGLTexture(gl, this.context,Square2.getHair()); 
    gl.glColor4f(1.0f, 1.0f, 1.0f, 2.0f);   
    gl.glClear(GL10.GL_COLOR_BUFFER_BIT | GL10.GL_DEPTH_BUFFER_BIT);

      // Reset the Modelview Matrix
      gl.glLoadIdentity();
     // GLU.gluLookAt(gl, 0, 0, 0, 0, 0, 0, 0, 0, 0);
      // Drawing
      gl.glTranslatef(0.0f, 0.0f, -5.0f);  // move 5 units INTO the screen
      square.draw(gl);
      square2.draw(gl); 
}


public void onSurfaceChanged(GL10 gl, int width, int height) {
    if(height == 0) {           //Prevent A Divide By Zero By
        height = 1;             //Making Height Equal One
    }

    w=width;
    h=height;
    gl.glViewport(0, 0, width, height);     //Reset The Current Viewport
    gl.glMatrixMode(GL10.GL_PROJECTION);    //Select The Projection Matrix
    gl.glLoadIdentity();        //Reset The Projection Matrix

    //Calculate The Aspect Ratio Of The Window
    GLU.gluPerspective(gl, 45.0f, (float)width / (float)height, 0.1f, 100.0f);

    gl.glMatrixMode(GL10.GL_MODELVIEW);     //Select The Modelview Matrix
    gl.glLoadIdentity();        //Reset The Modelview Matrix
}


public void onSurfaceCreated(GL10 gl, EGLConfig config) {
      // Load the texture for the square
    gl.glEnable(GL10.GL_BLEND);
    gl.glEnable(GL10.GL_TEXTURE_2D); 
    gl.glShadeModel(GL10.GL_FLAT);    //Enable Smooth Shading
    //gl.glEnable(GL10.GL_ALPHA_TEST);
    gl.glBlendFunc(GL10.GL_SRC_ALPHA, GL10.GL_ONE_MINUS_SRC_ALPHA);
    //gl.glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
      Square.loadGLTexture(gl, this.context,Square.getSex());
    //  gl.glAlphaFunc(GL10.GL_GREATER, 0.5f);

      gl.glDisable(GL10.GL_DEPTH_TEST);
      gl.glClearColor(0.0f, 0.0f, 0.0f, 0.0f);  //Black Background
      gl.glClearDepthf(1.0f);      //Depth Buffer Setup
      gl.glDepthFunc(GL10.GL_NEVER);    //The Type Of Depth Testing To Do

      //Really Nice Perspective Calculations
      gl.glHint(GL10.GL_PERSPECTIVE_CORRECTION_HINT, GL10.GL_NICEST);

     }
}

如果我使用它的当前代码，onDrawFrame它非常适合模拟器，但在电话上SurfaceView是空白的，我什么也得不到。我在一篇文章中发现我应该使用 GLU.gluLookAt(); 而不是 gl.glLoadIdentity(); 如果我这样做（onDrawFrame 中注释的代码）它可以工作，我会得到背景，但我的纹理没有加载，无论是在手机上还是在模拟器上。我该怎么做才能加载它们并使应用程序正常工作？

EDIT1：我GLU.gluPerspective(gl, 45.0f, (float)w / (float)h, 0.1f, 100.0f);从函数中注释了该行onDrawFrame，现在它显示了我的纹理，但程序强制在几秒钟后关闭。

我得到下一个 LogCat 错误：

 06-29 14:28:07.126: E/Adreno200-EGL(4825): eglLockWindowSurface: failed to map the memory for fd=54 offs=7385088
 06-29 14:28:07.126: E/Adreno200-EGL(4825): egliSwapWindowSurface: oglSwapBuffer failed
 06-29 14:28:07.126: E/EglHelper(4825): eglSwapBuffers glGetError = %d1285
 06-29 14:28:07.126: E/Adreno200-EGL(4825): eglLockWindowSurface: failed to map the memory for fd=54 offs=7385088
 06-29 14:28:07.276: W/dalvikvm(4825): threadid=9: thread exiting with uncaught exception (group=0x4001d5a0)
 06-29 14:28:07.276: E/AndroidRuntime(4825): FATAL EXCEPTION: GLThread 10
 06-29 14:28:07.276: E/AndroidRuntime(4825): java.lang.RuntimeException: eglSwapBuffers failed: EGL_BAD_ALLOC
 06-29 14:28:07.276: E/AndroidRuntime(4825):    at android.opengl.GLSurfaceView$EglHelper.throwEglException(GLSurfaceView.java:1084)
 06-29 14:28:07.276: E/AndroidRuntime(4825):    at android.opengl.GLSurfaceView$EglHelper.swap(GLSurfaceView.java:1042)
 06-29 14:28:07.276: E/AndroidRuntime(4825):    at android.opengl.GLSurfaceView$GLThread.guardedRun(GLSurfaceView.java:1368)
 06-29 14:28:07.276: E/AndroidRuntime(4825):    at android.opengl.GLSurfaceView$GLThread.run(GLSurfaceView.java:1122)
 06-29 14:28:09.268: I/Process(4825): Sending signal. PID: 4825 SIG: 9

任何想法这可能意味着什么？

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2 回答 2

0

java.lang.RuntimeException: eglSwapBuffers failed: EGL_BAD_ALLOC主要是由于没有glSurfaceView正确处理而导致的错误。

您必须通知glSurfaceView当前活动生命周期。见这里：http: //developer.android.com/reference/android/opengl/GLSurfaceView.html

另外，你的纹理有多大，你如何确保它的格式正确？

于 2012-06-29T11:42:48.907 回答
0

我的 onDrawFrame() 中有这两个函数：

Square.loadGLTexture(gl, this.context,Square.getSex()); 
Square2.loadGLTexture(gl, this.context,Square2.getHair());

他们不断地在每一帧重新加载，直到内存满了，它会崩溃。将其更改为：

if (Project.ifDraw){
        Square.loadGLTexture(gl, this.context,Square.getSex()); 
        Square2.loadGLTexture(gl, this.context,Square2.getHair());
        Project.ifDraw=false;
    }

在我的项目课程中：

public static boolean ifDraw=true;

OnClickListeners 已实现：

 mGLView.invalidate();
ifDraw=true;
于 2012-06-29T12:16:46.903 回答