Skip to Main Content
Android NDK Beginner`s Guide - Second Edition
book

Android NDK Beginner`s Guide - Second Edition

by Sylvain Ratabouil
April 2015
Beginner to intermediate content levelBeginner to intermediate
494 pages
10h 26m
English
Packt Publishing
Content preview from Android NDK Beginner`s Guide - Second Edition

Time for action – adapting resolution with off-screen rendering

Let's render the game scene off-screen:

  1. Change jni/GraphicsManager.hpp, followed by these steps:
    • Define new getter methods for the screen width and height with their corresponding member variables
    • Create a new function initializeRenderBuffer(), which creates an off-screen buffer to render the scene:
      ...
      class GraphicsManager {
      public:
          ...
          int32_t getRenderWidth() { return mRenderWidth; }s
          int32_t getRenderHeight() { return mRenderHeight; }
          int32_t getScreenWidth() { return mScreenWidth; }
          int32_t getScreenHeight() { return mScreenHeight; }
          GLfloat* getProjectionMatrix() { return mProjectionMatrix[0]; }
      
      ...
  2. While still being in the same file, follow these steps:
    • Declare a new RenderVertex ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Start your free trial

You might also like

Pro Android C++ with the NDK

Pro Android C++ with the NDK

Onur Cinar
Learning Embedded Android N Programming

Learning Embedded Android N Programming

Ivan Morgillo, Stefano Viola

Publisher Resources

ISBN: 9781783989645Supplemental Content