spieleprogrammierer.de - Forum und Wiki zur Spieleprogrammierung und Spieleentwicklung

Quellcode

package mbprog.opengltest;

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

public class OpenGLTest extends Activity{
    private GLSurfaceView m_glcontext;
    
    @Override
    public void onCreate(Bundle savedInstanceState){
        super.onCreate(savedInstanceState);
        
        m_glcontext = new GLSurfaceView(this);
        
        setContentView(m_glcontext);
    }
    
    @Override
    public void onPause(){
        super.onPause();
        
        m_glcontext.onPause();
    }
    
    @Override
    public void onResume(){
        super.onResume();
        
        m_glcontext.onResume();
    }
}

Quellcode

@Override
    public void onCreate(Bundle savedInstanceState){
        super.onCreate(savedInstanceState);
        
        m_glcontext = new GLSurfaceView(this);
        m_glcontext.setRenderer(new GLRenderer());      
        setContentView(m_glcontext);
    }

Quellcode

call to OpenGL ES API with no current context (logged once per thread)

Quellcode

// GLRenderer.java
public class GLRenderer implements GLSurfaceView.Renderer{
    private Shader m_shader;
    
    public GLRenderer(OpenGL activity){
        AssetManager res = activity.getAssets();
        
        // Shader
        try{
            m_shader = new Shader(res.open("shader.vsh"), res.open("shader.fsh"));
        }
        catch(Exception e){
            return; // Programm schließen
        }
    }

// Konstruktor in Shader.java
public Shader(InputStream vertex, InputStream fragment){
        int status[] = new int[1];
        
        m_vertexShader = GLES20.glCreateShader(GLES20.GL_VERTEX_SHADER);
        m_fragmentShader = GLES20.glCreateShader(GLES20.GL_FRAGMENT_SHADER);
        
        if(createShader(m_vertexShader, vertex) || createShader(m_fragmentShader, fragment)){
            System.out.println("Shader could not be created!");
            
            return;
        }
        
        // Shader Programm erstellen
        m_program = GLES20.glCreateProgram();
        
        GLES20.glAttachShader(m_program, m_vertexShader);
        GLES20.glAttachShader(m_program, m_fragmentShader);     
        GLES20.glLinkProgram(m_program);
        
        GLES20.glGetProgramiv(m_program, GLES20.GL_LINK_STATUS, status, 0);
        
        if(status[0] == 0){
            GLES20.glDeleteProgram(m_program);
            
            System.out.println("Shader could not be created!");
        }
    }

Quellcode

m_context = new GLSurfaceView(this);
        m_context.setEGLContextClientVersion(2);
        m_context.setRenderer(new GLRenderer(this));
               
        setContentView(m_context);