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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
//
// W A R N I N G
// -------------
//
// This file is not part of the QtDataVisualization API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
#ifndef VERTEXINDEXER_P_H
#define VERTEXINDEXER_P_H
#include "datavisualizationglobal_p.h"
#include <QtCore/QList>
#include <QtGui/QVector2D>
QT_BEGIN_NAMESPACE
class VertexIndexer
{
public:
struct PackedVertex {
QVector3D position;
QVector2D uv;
QVector3D normal;
bool operator<(const PackedVertex that) const {
return memcmp((void*)this, (void*)&that, sizeof(PackedVertex)) > 0;
}
};
static void indexVBO(const QList<QVector3D> &in_vertices, const QList<QVector2D> &in_uvs,
const QList<QVector3D> &in_normals, QList<GLuint> &out_indices,
QList<QVector3D> &out_vertices, QList<QVector2D> &out_uvs,
QList<QVector3D> &out_normals);
private:
static bool getSimilarVertexIndex_fast(const PackedVertex &packed,
QMap<PackedVertex, GLuint> &VertexToOutIndex,
GLuint &result);
};
QT_END_NAMESPACE
#endif