Mali GPU User Interface Engine Application Development Guide

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Tutorial on the System Classes...}input->read(inputBuffer, sizeof(char), length);inputBuffer[length] = '\0';// Add null-termination characterTo read or write to the stream, you must define:• a buffer to read from or write to• the size of each element• how many elements to read or write.The Filesystem methods are:• read() to read content from a file.• write() to write content to a file.• getLength() to get the length of the file• getPosition() to get the current position• setPosition() to manually set the position.4. Example 2-14 shows how to write the buffer to a file:Example 2-14 Writing to a file......output->write(inputBuffer, sizeof(char), length);output->flush();5. Example 2-15 shows deleting unused objects and the final catch block:Example 2-15 Deleting the buffer...delete [] inputBuffer;}catch(Exception& e){printf("An unexpected exception was thrown:\n%s\n", e.getMessage().getCharString() );}}The system and filesystem objects do not require manual deletion because the Managedtemplate tracks usage and automatically destroys the objects when the application exits.ARM DUI 0527A-02a Copyright © 2010 ARM. All rights reserved. 2-10ID070710Non-Confidential - Draft - Beta
Tutorial on the System Classes2.5 Creating a Timer interfaceThe following steps describe how to create a Timer object:1. Open the main.cpp file from the 04 - Using the Timer <strong>Interface</strong> project.Example 2-16 shows how to create a System and Timer interface:Example 2-16 Create a timer#include #include using namespace MDE;/* Portable sleep function */#ifdef MDE_PLATFORM_ARM_LINUX#include void Sleep(unsigned int time){usleep(time * 1000);}#endif#ifdef MDE_OS_PC_LINUX#include void Sleep(unsigned int time){usleep(time * 1000);}#endifint main(){try{Managed system = create_system_backend();Managed timer = system->createTimer();...2. Example 2-17 shows how to track changes in the timer.Example 2-17 Timer sleep calls...printf("Reseting timer\n");timer->reset();printf("Time since object reset is: %f\n", timer->getTime());printf("\nSleeping 1000 milliseconds\n");Sleep(1000);printf("Time since object creation is: %f\n", timer->getTime());printf("\nReseting timer\n");timer->reset();printf("Time since timer reset is: %f\n", timer->getTime());printf("\nSleeping 1000 milliseconds\n");ARM DUI 0527A-02a Copyright © 2010 ARM. All rights reserved. 2-11ID070710Non-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 and 18: Chapter 2Tutorial on the System Cla
Page 19 and 20: Tutorial on the System Classes2.2 C
Page 21 and 22: Tutorial on the System ClassesFigur
Page 23 and 24: Tutorial on the System ClassesDrawi
Page 25: Tutorial on the System Classes2.4 C
Page 29 and 30: Chapter 3Tutorial on Drawing 2D Sha
Page 31 and 32: Tutorial on Drawing 2D Shapes...con
Page 33 and 34: Tutorial on Drawing 2D ShapesFor ea
Page 36 and 37: Tutorial on Drawing 2D ShapesExampl
Page 38 and 39: Tutorial on Drawing 2D Shapes...ele
Page 42 and 43: Tutorial on Drawing 2D ShapesFigure
Page 44 and 45: Tutorial on Drawing 3D Shapes4.1 Dr
Page 48 and 49: Tutorial on Drawing 3D Shapes4.2 Co
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Page 52 and 53: Tutorial on Drawing 3D Shapesvec3 c
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Tutorial on Drawing 3D ShapesFigure
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Tutorial on Drawing 3D ShapesExampl
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Tutorial on Drawing 3D ShapesFigure
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Tutorial on Drawing 3D Shapes// Che
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Tutorial on Drawing 3D Shapes...}if
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Tutorial on Drawing 3D Shapes• th
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Tutorial on Drawing 3D Shapes}}prin
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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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