Mali GPU User Interface Engine Application Development Guide

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Tutorial on the System Classes2.1 About the System componentsA fundamental part of the MDE library is the System component. The System component handlesoperating system and platform-dependent tasks, such as:• utilizing the native file system• using input devices• creating an OpenGL ES context.The System component requires a platform-specific implementation. The MDE library containsimplementations for ARM Embedded Linux (AEL), Windows, and Red Hat Enterprise Linux.ARM DUI 0527A-02a Copyright © 2010 ARM. All rights reserved. 2-2ID070710Non-Confidential - Draft - Beta
Tutorial on the System Classes2.2 Creating a simple application with just the System and Keyboard classesThe following steps describe how to create a System and Keyboard interface:1. Open the main.cpp file from the 01 - Introduction to the System <strong>Interface</strong> project in theMDE Tutorial Examples folder.Example 2-1 shows how to create a System interface to use with the other librarycomponents:Example 2-1 Create a System object and a context#include #include int main(){MDE::Managed system = MDE::create_system_backend();#ifdef MDE_OS_PC_LINUXMDE::Context* context = system->createContext(320,240);#endif...The Managed template provides automatic lifetime checking and resource deletion. ARMrecommends that you always use it when creating library objects. If Managed is not used,there must be a corresponding call to release() for each object creation. For example:MDE::System* system = MDE::system_create_backend();...system->release();The createContext() parameters specify the width and height of the graphics window. Forthis example, the framebuffer is created but will not be used.2. Example 2-2 shows how to create a Keyboard interface:Example 2-2 Create a Keyboard object...#ifdef MDE_OS_PC_LINUXMDE::Keyboard* keyboard = system->createKeyboard(context);#elseMDE::Keyboard* keyboard = system->createKeyboard();#endif...NoteThere are minor difference in the creation of inputs between Windows and X11 platforms.Input devices are linked to specific contexts on X11 systems, for example, to a windowon the display that this input device is used with.3. Keyboard input sequences the program to the next stage. Example 2-3 on page 2-4 showshow to prompt the user to press the Esc key:ARM DUI 0527A-02a Copyright © 2010 ARM. All rights reserved. 2-3ID070710Non-Confidential - Draft - Beta
Page 1 and 2: MaliGPU User Interface EngineVersio
Page 3 and 4: ContentsMali GPU User Interface Eng
Page 5 and 6: List of TablesMali GPU User Interfa
Page 7 and 8: List of FiguresFigure 4-17 Environm
Page 9 and 10: PrefaceAbout this bookThis is the M
Page 11 and 12: PrefaceFeedbackARM welcomes feedbac
Page 13 and 14: Introduction1.1 About the Mali GPU
Page 15 and 16: IntroductionProxygetLoader()LoaderA
Page 17: Chapter 2Tutorial on the System Cla
Page 21 and 22: Tutorial on the System ClassesFigur
Page 23 and 24: Tutorial on the System ClassesDrawi
Page 25 and 26: Tutorial on the System Classes2.4 C
Page 27 and 28: Tutorial on the System Classes2.5 C
Page 29 and 30: Chapter 3Tutorial on Drawing 2D Sha
Page 31 and 32: Tutorial on Drawing 2D Shapes...con
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Tutorial on the Lotion User Interfa
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Chapter 6Tutorial on Constructing C
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Tutorial on Constructing Custom Sha
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Appendix AMatrix and Vector Operati
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Matrix and Vector Operationsmat4 pe
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GlossaryThis glossary describes som
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GlossaryShader LibraryVertex shader
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Mali GPU User Interface Engine Application Development Guide

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