Mali GPU User Interface Engine Application Development Guide

Tutorial on Drawing 2D ShapesExample 3-9 Vertex shading of simple triangle with floating-point color values......GLfloat vertexData[] ={-1.0, -1.0,1.0, -1.0,0.0, 1.0};GLfloat colorData[] ={1.0, 0, 0, 1.0,0, 1.0, 0, 1.0,0, 0, 1.0 1.0};3. Change the vertex definition code to use floating-point for color values as shown inExample 3-10:Example 3-10 Using floating-point values for the color buffers...Managed vertexBuffer = context->createBuffer(GL_ARRAY_BUFFER, sizeof(vertexData),sizeof(GLfloat)*2);vertexBuffer->setData(0, sizeof(vertexData), vertexData);Managed colorBuffer = context->createBuffer(GL_ARRAY_BUFFER, sizeof(colorData),sizeof(GLfloat)*4);colorBuffer->setData(0, sizeof(colorData), colorData);VertexElement elements[2];elements[0].components = 2;elements[0].offset = 0;elements[0].semantic = POSITION;elements[0].stream = 0;elements[0].type = GL_FLOAT;elements[0].normalize = false;...elements[1].components = 4;elements[1].offset = 0;elements[1].semantic = COLOR;elements[1].stream = 1;elements[1].type = GL_FLOAT;elements[1].normalize = true;4. Rebuild the project and run it. Figure 3-3 on page 3-9 shows the triangle appearance hasnot changed:ARM DUI 0527A-02a Copyright © 2010 ARM. All rights reserved. 3-8ID070710Non-Confidential - Draft - Beta