Book Image

Android NDK Beginner's Guide

By : Sylvain Ratabouil
Book Image

Android NDK Beginner's Guide

By: Sylvain Ratabouil

Overview of this book

<p>Android NDK is all about injecting high performance into your apps. Exploit the maximum power of these mobile devices using high-performance and portable code.</p> <p>This book will show you how to create C/C++ enabled applications and integrate them with Java. You will learn how to access native API and port libraries used in some of the most successful Android applications.</p> <p>Using this practical step-by-step tutorial, highlighted with comments and tricks, discover how to run C/C++ code embedded in a Java application or in a standalone application. You will create a real native application starting from project creation through to full implementation of native API and the porting of existing third-party libraries. You will discover OpenGL ES and OpenSL ES, which are becoming the new standard in mobility. You will also understand how to access keyboard and input peripherals and how to read accelerometer or orientation sensors.</p> <p>Finally, you will dive into more advanced topics such as debugging and troubleshooting applications. By the end of the book, you should know the key elements to enable you to start exploiting the power and portability of native code.</p>
Table of Contents (19 chapters)
Android NDK Beginner's Guide
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Initializing OpenGL ES


The first step to create awesome graphics is to initialize OpenGL ES. Although not terribly complex, this task is a little bit involving when binding to an Android window (that is, attaching a rendering context to a window). These pieces are glued together with the help of the Embedded-System Graphics Library (or EGL ), a companion API of OpenGL ES.

For this first part, I propose to replace the raw drawing system implemented in a previous chapter with OpenGL ES. We are going to take care of EGL initialization and finalization and try to fade screen color from black to white to ensure everything works properly.

Note

Project DroidBlaster_Part5-3 can be used as a starting point for this part. The resulting project is provided with this book under the name DroidBlaster_Part6-1.