diff options
Diffstat (limited to 'examples/opengl/cube/geometryengine.cpp')
-rw-r--r-- | examples/opengl/cube/geometryengine.cpp | 46 |
1 files changed, 22 insertions, 24 deletions
diff --git a/examples/opengl/cube/geometryengine.cpp b/examples/opengl/cube/geometryengine.cpp index 0a34213084..618a080c37 100644 --- a/examples/opengl/cube/geometryengine.cpp +++ b/examples/opengl/cube/geometryengine.cpp @@ -1,6 +1,6 @@ /**************************************************************************** ** -** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies). +** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies). ** Contact: http://www.qt-project.org/legal ** ** This file is part of the QtCore module of the Qt Toolkit. @@ -49,29 +49,27 @@ struct VertexData QVector2D texCoord; }; +//! [0] GeometryEngine::GeometryEngine() + : indexBuf(QOpenGLBuffer::IndexBuffer) { -} - -GeometryEngine::~GeometryEngine() -{ - glDeleteBuffers(2, vboIds); -} - -void GeometryEngine::init() -{ - initializeGLFunctions(); + initializeOpenGLFunctions(); -//! [0] // Generate 2 VBOs - glGenBuffers(2, vboIds); - -//! [0] + arrayBuf.create(); + indexBuf.create(); // Initializes cube geometry and transfers it to VBOs initCubeGeometry(); } +GeometryEngine::~GeometryEngine() +{ + arrayBuf.destroy(); + indexBuf.destroy(); +} +//! [0] + void GeometryEngine::initCubeGeometry() { // For cube we would need only 8 vertices but we have to @@ -133,21 +131,21 @@ void GeometryEngine::initCubeGeometry() //! [1] // Transfer vertex data to VBO 0 - glBindBuffer(GL_ARRAY_BUFFER, vboIds[0]); - glBufferData(GL_ARRAY_BUFFER, 24 * sizeof(VertexData), vertices, GL_STATIC_DRAW); + arrayBuf.bind(); + arrayBuf.allocate(vertices, 24 * sizeof(VertexData)); // Transfer index data to VBO 1 - glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, vboIds[1]); - glBufferData(GL_ELEMENT_ARRAY_BUFFER, 34 * sizeof(GLushort), indices, GL_STATIC_DRAW); + indexBuf.bind(); + indexBuf.allocate(indices, 34 * sizeof(GLushort)); //! [1] } //! [2] -void GeometryEngine::drawCubeGeometry(QGLShaderProgram *program) +void GeometryEngine::drawCubeGeometry(QOpenGLShaderProgram *program) { // Tell OpenGL which VBOs to use - glBindBuffer(GL_ARRAY_BUFFER, vboIds[0]); - glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, vboIds[1]); + arrayBuf.bind(); + indexBuf.bind(); // Offset for position quintptr offset = 0; @@ -155,7 +153,7 @@ void GeometryEngine::drawCubeGeometry(QGLShaderProgram *program) // Tell OpenGL programmable pipeline how to locate vertex position data int vertexLocation = program->attributeLocation("a_position"); program->enableAttributeArray(vertexLocation); - glVertexAttribPointer(vertexLocation, 3, GL_FLOAT, GL_FALSE, sizeof(VertexData), (const void *)offset); + program->setAttributeBuffer(vertexLocation, GL_FLOAT, offset, 3, sizeof(VertexData)); // Offset for texture coordinate offset += sizeof(QVector3D); @@ -163,7 +161,7 @@ void GeometryEngine::drawCubeGeometry(QGLShaderProgram *program) // Tell OpenGL programmable pipeline how to locate vertex texture coordinate data int texcoordLocation = program->attributeLocation("a_texcoord"); program->enableAttributeArray(texcoordLocation); - glVertexAttribPointer(texcoordLocation, 2, GL_FLOAT, GL_FALSE, sizeof(VertexData), (const void *)offset); + program->setAttributeBuffer(texcoordLocation, GL_FLOAT, offset, 2, sizeof(VertexData)); // Draw cube geometry using indices from VBO 1 glDrawElements(GL_TRIANGLE_STRIP, 34, GL_UNSIGNED_SHORT, 0); |