Mali GPU User Interface Engine Application Development Guide

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Tutorial on Constructing Custom Shadersproxy.getProgram("shaders/hello_world.vert;shaders/hello_world.frag");context->setProgram(helloWorldProgram);...6.5.3 Precompiled shader programsThe Mali GPU Offline Shader Compiler is a command line tool that translates vertex shadersand fragment shaders written in the OpenGL ES Shading Language (ESSL) into binary vertexshaders and binary fragment shaders that you can link and run on the Mali GPU.Using the Mali GPU Offline Shader Compiler is optional. You can use the compiler to providebinary shaders which can be distributed without the source. However, using compiled shadersalso reduces portability, because a particular binary shader can only be used on one type of GPU.ARM DUI 0527A-02a Copyright © 2010 ARM. All rights reserved. 6-15ID070710Non-Confidential - Draft - Beta
Tutorial on Constructing Custom Shaders6.6 Filling a shape with a bitmap textureThe examples in Minimal shader programs on page 6-12 use fixed or interpolated colors for thefragment color. To map a bitmap onto the shape:1. Example 6-18 shows the code to load the bitmap and create a texture:Example 6-18 Creating a texture from a bitmap fileManaged filesystem = system->createFileSystem(".");Proxy proxy(filesystem, context);...Program *texturingProgram =proxy.getProgram("shaders/texturing.vert;shaders/texturing.frag");Texture2D *texture = proxy.getTexture2D("data/rock_t.png");texture->setFilterMode(GL_NEAREST, GL_NEAREST);...2. The semantic entry in the VertexElement array must specify TEXTCOORD0 as shown inExample 6-19:Example 6-19 Modifying the VertexElement array to use a texture...Managed vertexBuffer =context->createBuffer(GL_ARRAY_BUFFER, sizeof(vertexData), sizeof(GLfloat)*5);vertexBuffer->setData(0, sizeof(vertexData), vertexData);context->setVertexBuffer(0, vertexBuffer);VertexElement elements[2];elements[0].components = 3;elements[0].offset = 0;elements[0].semantic = POSITION;elements[0].stream = 0;elements[0].type = GL_FLOAT;elements[1].components = 2;elements[1].offset = 3*sizeof(GLfloat);elements[1].semantic = TEXCOORD0;elements[1].stream = 0;elements[1].type = GL_FLOAT;Managed vertexDeclaration =context->createVertexDeclaration(elements, 2);context->setVertexDeclaration(vertexDeclaration);...3. Example 6-20 shows the use of setProgram() to connect the texturing program fromExample 6-18 to the context:Example 6-20 Create a texture program and a uniform sampler to use the bitmap...context->setProgram(texturingProgram);context->setUniformSampler("texture", static_cast(texture));...ARM DUI 0527A-02a Copyright © 2010 ARM. All rights reserved. 6-16ID070710Non-Confidential - Draft - Beta
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MaliGPU User Interface EngineVersio
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ContentsMali GPU User Interface Eng
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List of TablesMali GPU User Interfa
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List of FiguresFigure 4-17 Environm
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PrefaceAbout this bookThis is the M
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PrefaceFeedbackARM welcomes feedbac
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Introduction1.1 About the Mali GPU
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IntroductionProxygetLoader()LoaderA
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Chapter 2Tutorial on the System Cla
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Tutorial on the System Classes2.2 C
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Tutorial on the System ClassesFigur
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Tutorial on the System ClassesDrawi
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Chapter 3Tutorial on Drawing 2D Sha
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Tutorial on Drawing 2D Shapes...con
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Tutorial on Drawing 2D ShapesFor ea
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Tutorial on Drawing 2D ShapesExampl
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Tutorial on Drawing 2D ShapesFigure
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Tutorial on Drawing 3D Shapes4.1 Dr
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Tutorial on the Lotion User Interfa
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Tutorial on the Lotion User Interfa
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