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++ // Copyright (C) 2017 Klaralvdalens Datakonsult AB (KDAB).
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
++
++ #ifndef GLTFGEOMETRYLOADER_H
++ #define GLTFGEOMETRYLOADER_H
++
++ //
++ // W A R N I N G
++ // -------------
++ //
++ // This file is not part of the Qt API. It exists for the convenience
++ // of other Qt classes. This header file may change from version to
++ // version without notice, or even be removed.
++ //
++ // We mean it.
++ //
++
++ #include <QtCore/QHash>
++ #include <QtCore/QJsonDocument>
++
++ #include <Qt3DRender/private/qgeometryloaderinterface_p.h>
++ #include <Qt3DCore/qattribute.h>
++ #include <Qt3DCore/qbuffer.h>
++
++ #include <private/qlocale_tools_p.h>
++
++ QT_BEGIN_NAMESPACE
++
++ namespace Qt3DCore {
++ class QGeometry;
++ }
++
++ namespace Qt3DRender {
++
++ #define GLTFGEOMETRYLOADER_EXT QLatin1String("gltf")
++ #define JSONGEOMETRYLOADER_EXT QLatin1String("json")
++ #define QGLTFGEOMETRYLOADER_EXT QLatin1String("qgltf")
++
++ class QCamera;
++ class QCameraLens;
++ class QMaterial;
++ class QShaderProgram;
++ class QEffect;
++ class QAbstractTexture;
++ class QRenderState;
++ class QTechnique;
++ class QParameter;
++ class QGeometryRenderer;
++
++ class GLTFGeometryLoader : public QGeometryLoaderInterface
++ {
++ class BufferData
++ {
++ public:
++ BufferData();
++ explicit BufferData(const QJsonObject &json);
++
++ quint64 length;
++ QString path;
++ QByteArray *data;
++ // type if ever useful
++ };
++
++ class ParameterData
++ {
++ public:
++ ParameterData();
++ explicit ParameterData(const QJsonObject &json);
++
++ QString semantic;
++ int type;
++ };
++
++ class AccessorData
++ {
++ public:
++ AccessorData();
++ explicit AccessorData(const QJsonObject &json);
++
++ QString bufferViewName;
++ int bufferViewIndex;
++ Qt3DCore::QAttribute::VertexBaseType type;
++ uint dataSize;
++ int count;
++ int offset;
++ int stride;
++ };
++
++ struct Gltf1
++ {
++ QHash<QString, AccessorData> m_accessorDict;
++ QHash<QString, BufferData> m_bufferDatas;
++ QHash<QString, Qt3DCore::QBuffer*> m_buffers;
++ };
++
++ struct Gltf2
++ {
++ QVector<BufferData> m_bufferDatas;
++ QVector<Qt3DCore::QBuffer*> m_buffers;
++ QVector<AccessorData> m_accessors;
++ };
++
++ Q_OBJECT
++ public:
++ GLTFGeometryLoader();
++ ~GLTFGeometryLoader();
++
++ Qt3DCore::QGeometry *geometry() const final;
++
++ bool load(QIODevice *ioDev, const QString &subMesh = QString()) final;
++
++ protected:
++ void setBasePath(const QString &path);
++ bool setJSON(const QJsonDocument &json);
++
++ static QString standardAttributeNameFromSemantic(const QString &semantic);
++
++ void parse();
++ void parseGLTF1();
++ void parseGLTF2();
++ void cleanup();
++
++ void processJSONBuffer(const QString &id, const QJsonObject &json);
++ void processJSONBufferView(const QString &id, const QJsonObject &json);
++ void processJSONAccessor(const QString &id, const QJsonObject &json);
++ void processJSONMesh(const QString &id, const QJsonObject &json);
++
++ void loadBufferData();
++ void unloadBufferData();
++
++ void processJSONBufferV2(const QJsonObject &json);
++ void processJSONBufferViewV2(const QJsonObject &json);
++ void processJSONAccessorV2(const QJsonObject &json);
++ void processJSONMeshV2(const QJsonObject &json);
++
++ void loadBufferDataV2();
++ void unloadBufferDataV2();
++
++ QByteArray resolveLocalData(const QString &path) const;
++
++ static Qt3DCore::QAttribute::VertexBaseType accessorTypeFromJSON(int componentType);
++ static uint accessorDataSizeFromJson(const QString &type);
++
++ private:
++ QJsonDocument m_json;
++ QString m_basePath;
++ QString m_mesh;
++
++ Gltf1 m_gltf1;
++ Gltf2 m_gltf2;
++
++ Qt3DCore::QGeometry *m_geometry;
++ };
++
++ } // namespace Qt3DRender
++
++ QT_END_NAMESPACE
++
++ #endif // GLTFGEOMETRYLOADER_H