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Diffstat (limited to 'src/datavis3d/utils/vertexindexer_p.h')
-rw-r--r-- | src/datavis3d/utils/vertexindexer_p.h | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/src/datavis3d/utils/vertexindexer_p.h b/src/datavis3d/utils/vertexindexer_p.h new file mode 100644 index 00000000..3ee908af --- /dev/null +++ b/src/datavis3d/utils/vertexindexer_p.h @@ -0,0 +1,111 @@ +/**************************************************************************** +** +** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/legal +** +** This file is part of the QtDataVis3D module. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and Digia. For licensing terms and +** conditions see http://qt.digia.com/licensing. For further information +** use the contact form at http://qt.digia.com/contact-us. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Digia gives you certain additional +** rights. These rights are described in the Digia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +// +// W A R N I N G +// ------------- +// +// This file is not part of the Qt 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 "qdatavis3dglobal.h" + +#include <QVector> +#include <QVector2D> +#include <QVector3D> + +QTCOMMERCIALDATAVIS3D_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 QVector<QVector3D> &in_vertices, + const QVector<QVector2D> &in_uvs, + const QVector<QVector3D> &in_normals, + QVector<unsigned short> &out_indices, + QVector<QVector3D> &out_vertices, + QVector<QVector2D> &out_uvs, + QVector<QVector3D> &out_normals); + + static void indexVBO_TBN(const QVector<QVector3D> &in_vertices, + const QVector<QVector2D> &in_uvs, + const QVector<QVector3D> &in_normals, + const QVector<QVector3D> &in_tangents, + const QVector<QVector3D> &in_bitangents, + QVector<unsigned short> &out_indices, + QVector<QVector3D> &out_vertices, + QVector<QVector2D> &out_uvs, + QVector<QVector3D> &out_normals, + QVector<QVector3D> &out_tangents, + QVector<QVector3D> &out_bitangents); + + private: + static bool is_near(float v1, float v2); + static bool getSimilarVertexIndex(const QVector3D &in_vertex, + const QVector2D &in_uv, + const QVector3D &in_normal, + QVector<QVector3D> &out_vertices, + QVector<QVector2D> &out_uvs, + QVector<QVector3D> &out_normals, + unsigned short &result); + static bool getSimilarVertexIndex_fast(const PackedVertex &packed, + QMap<PackedVertex, unsigned short> &VertexToOutIndex, + unsigned short &result); +}; + +QTCOMMERCIALDATAVIS3D_END_NAMESPACE + +#endif |