1 files changed, 101 insertions, 0 deletions
diff --git a/src/datavisualization/utils/objecthelper.cpp b/src/datavisualization/utils/objecthelper.cpp
new file mode 100644
index 00000000..9660c215
--- /dev/null
+++ b/src/datavisualization/utils/objecthelper.cpp
@@ -0,0 +1,101 @@
+/****************************************************************************
+**
+** Copyright (C) 2013 Digia Plc
+** All rights reserved.
+** For any questions to Digia, please use contact form at http://qt.digia.com
+**
+** This file is part of the QtDataVisualization module.
+**
+** Licensees holding valid Qt Enterprise licenses may use this file in
+** accordance with the Qt Enterprise License Agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia.
+**
+** If you have questions regarding the use of this file, please use
+** contact form at http://qt.digia.com
+**
+****************************************************************************/
+
+#include "meshloader_p.h"
+#include "vertexindexer_p.h"
+#include "objecthelper_p.h"
+#include "abstractobjecthelper_p.h"
+
+#include <QDebug>
+
+QT_DATAVISUALIZATION_BEGIN_NAMESPACE
+
+ObjectHelper::ObjectHelper(const QString &objectFile)
+    : m_objectFile(objectFile)
+{
+    m_indicesType = GL_UNSIGNED_SHORT;
+}
+
+ObjectHelper::~ObjectHelper()
+{
+}
+
+void ObjectHelper::setObjectFile(const QString &objectFile)
+{
+    m_objectFile = objectFile;
+}
+
+void ObjectHelper::load()
+{
+    initializeOpenGLFunctions();
+    if (m_meshDataLoaded) {
+        // Delete old data
+        glDeleteBuffers(1, &m_vertexbuffer);
+        glDeleteBuffers(1, &m_uvbuffer);
+        glDeleteBuffers(1, &m_normalbuffer);
+        glDeleteBuffers(1, &m_elementbuffer);
+    }
+    QVector<QVector3D> vertices;
+    QVector<QVector2D> uvs;
+    QVector<QVector3D> normals;
+    bool loadOk = MeshLoader::loadOBJ(m_objectFile, vertices, uvs, normals);
+    if (!loadOk)
+        qFatal("loading failed");
+
+    //qDebug() << "vertex count" << vertices.size();;
+
+    // Index vertices
+    QVector<unsigned short> indices;
+    QVector<QVector3D> indexed_vertices;
+    QVector<QVector2D> indexed_uvs;
+    QVector<QVector3D> indexed_normals;
+    VertexIndexer::indexVBO(vertices, uvs, normals, indices, indexed_vertices, indexed_uvs,
+                            indexed_normals);
+
+    m_indexCount = indices.size();
+    //qDebug() << "index count" << m_indexCount;
+
+    glGenBuffers(1, &m_vertexbuffer);
+    glBindBuffer(GL_ARRAY_BUFFER, m_vertexbuffer);
+    glBufferData(GL_ARRAY_BUFFER, indexed_vertices.size() * sizeof(QVector3D),
+                 &indexed_vertices.at(0),
+                 GL_STATIC_DRAW);
+
+    glGenBuffers(1, &m_normalbuffer);
+    glBindBuffer(GL_ARRAY_BUFFER, m_normalbuffer);
+    glBufferData(GL_ARRAY_BUFFER, indexed_normals.size() * sizeof(QVector3D),
+                 &indexed_normals.at(0),
+                 GL_STATIC_DRAW);
+
+    glGenBuffers(1, &m_uvbuffer);
+    glBindBuffer(GL_ARRAY_BUFFER, m_uvbuffer);
+    glBufferData(GL_ARRAY_BUFFER, indexed_uvs.size() * sizeof(QVector2D),
+                 &indexed_uvs.at(0), GL_STATIC_DRAW);
+
+    glGenBuffers(1, &m_elementbuffer);
+    glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, m_elementbuffer);
+    glBufferData(GL_ELEMENT_ARRAY_BUFFER, indices.size() * sizeof(unsigned short),
+                 &indices.at(0), GL_STATIC_DRAW);
+
+    glBindBuffer(GL_ARRAY_BUFFER, 0);
+    glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
+
+    m_meshDataLoaded = true;
+}
+
+QT_DATAVISUALIZATION_END_NAMESPACE