Android Open Source - agldemo Base Renderer

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License

The source code is released under:

Copyright (c) 2013 Wenhao Li Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software...

Java Source Code

/**
 * Copyright (C) 2010 Wenhao Li. All Rights Reserved.
 * /*from   ww  w  . j av a 2 s. co m*/
 */
package com.agldemo;

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

import javax.microedition.khronos.opengles.GL10;

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

import com.agldemo.GLView.Renderer;

/**
 * Base Renderer implement.
 */
public abstract class BaseRenderer implements Renderer {

  public static FloatBuffer makeFloatBuffer(float[] arr) {
        ByteBuffer bb = ByteBuffer.allocateDirect(arr.length * 4);
        bb.order(ByteOrder.nativeOrder());
        FloatBuffer fb = bb.asFloatBuffer();
        fb.put(arr);
        fb.position(0);
        return fb;
    }

  public static int loadTexture(GL10 gl, Bitmap bmp) {
        gl.glEnable(GL10.GL_TEXTURE_2D);

        int[] tex = new int[1];

        gl.glGenTextures(1, tex, 0);

        gl.glBindTexture(GL10.GL_TEXTURE_2D, tex[0]);
        GLUtils.texImage2D(GL10.GL_TEXTURE_2D, 0, bmp, 0);
        gl.glTexParameterf(GL10.GL_TEXTURE_2D, GL10.GL_TEXTURE_MIN_FILTER, GL10.GL_LINEAR);
        gl.glTexParameterf(GL10.GL_TEXTURE_2D, GL10.GL_TEXTURE_MAG_FILTER, GL10.GL_LINEAR);

        return tex[0];
    }
}

Java Source Code List

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