Cần giúp đỡ về OpenGL trong Android Studio

Bạn nên đưa ra thông tin rõ ràng hon về: Thư viện, phần cứng, hđh, .etc

import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.opengl.GLUtils;

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

import android.util.Log;

import javax.microedition.khronos.opengles.GL;
import javax.microedition.khronos.opengles.GL10;

import com.badlogic.androigames.framework.Screen;
import com.badlogic.androigames.framework.Game;

import com.badlogic.androigames.framework.impl.GLGame;
import com.badlogic.androigames.framework.impl.GLGraphics;

public class TexturedTriangleTest extends GLGame {
    @Override
    public Screen getStartScreen(){
        return new TexturedTriangleScreen(this);

    }
    class TexturedTriangleScreen extends Screen{
        final int VERTEX_SIZE = (2 + 2)*4;
        GLGraphics glGraphics;
        FloatBuffer vertices;
        int textureId;
        public TexturedTriangleScreen(Game game){
            super(game);
            glGraphics = ((GLGame)game).getGLGraphics();

            ByteBuffer byteBuffer = ByteBuffer.allocateDirect(3*VERTEX_SIZE);
            byteBuffer.order(ByteOrder.nativeOrder());
            vertices =  byteBuffer.asFloatBuffer();
            vertices.put(new float[]{  0.0f  ,  0.0f  ,  0.0f  ,  0.1f  ,
                                     319.0f,    0.0f  ,  1.0f  ,  1.0f  ,
                                     160.0f,    479.0f,  0.5f  ,  0.0f  });
            vertices.flip();
            textureId = loadTexture("background.png");
        }
        public int loadTexture(String filename){
            try {
                Bitmap bitmap = BitmapFactory.decodeStream(game.getFileIO().readAsset(filename));
                GL10 gl = glGraphics.getGL();
                int textureIds[] = new int[1];
                gl.glGenTextures(1,textureIds,0);
                int textureId = textureIds[0];
                gl.glBindTexture(GL10.GL_TEXTURE_2D,textureId);
                GLUtils.texImage2D(GL10.GL_TEXTURE_2D,0,bitmap,0);
                gl.glTexParameterf(GL10.GL_TEXTURE_2D,GL10.GL_TEXTURE_MIN_FILTER,GL10.GL_NEAREST);
                gl.glTexParameterf(GL10.GL_TEXTURE_2D,GL10.GL_TEXTURE_MAG_FILTER,GL10.GL_NEAREST);
                gl.glBindTexture(GL10.GL_TEXTURE_2D,0);
                bitmap.recycle();
                return textureId;
            }catch (IOException e){
                Log.d("TexturedTriangle","khong the load duoc asset '" + filename + "'");
                throw new RuntimeException("khong the load duoc asset '" + filename + "'");
            }
        }

        @Override
        public void present(float deltaTime){
            GL10 gl = glGraphics.getGL();
            gl.glViewport(0,0,glGraphics.getWidth(),glGraphics.getHeight());
            gl.glClear(GL10.GL_COLOR_BUFFER_BIT);
            gl.glMatrixMode(GL10.GL_PROJECTION);
            gl.glLoadIdentity();
            gl.glOrthof(0,320,0,480,1,-1);

            gl.glEnable(GL10.GL_TEXTURE_2D);
            gl.glBindTexture(GL10.GL_TEXTURE_2D,textureId);

            gl.glEnableClientState(GL10.GL_VERTEX_ARRAY);
            gl.glEnableClientState((GL10.GL_TEXTURE_COORD_ARRAY));

            vertices.position(0);
            gl.glVertexPointer(2,GL10.GL_FLOAT,VERTEX_SIZE,vertices);
            vertices.position(2);
            gl.glTexCoordPointer(2,GL10.GL_FLOAT,VERTEX_SIZE,vertices);
            gl.glDrawArrays(GL10.GL_TRIANGLES,0,3);
        }
        @Override
        public void update(float deltaTime){
            game.getInput().getTouchEvents();
            game.getInput().getKeyEvents();

        }
        @Override
        public void pause(){

        }
        @Override
        public void resume(){

        }
        @Override
        public void dispose(){

        }
    }
}

guiusp mình với