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| ** Copyright (C) 2016 The Qt Company Ltd and/or its subsidiary(-ies). |
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| ** Alternatively, this file may be used under the terms of the GNU |
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| ****************************************************************************/ |
| |
| #ifndef GLTFIMPORTER_H |
| #define GLTFIMPORTER_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 <Qt3DRender/qattribute.h> |
| #include <Qt3DRender/qbuffer.h> |
| #include <QtCore/qjsondocument.h> |
| #include <QtCore/qjsonobject.h> |
| #include <QtCore/qhash.h> |
| #include <QtCore/qloggingcategory.h> |
| |
| #include <Qt3DRender/private/qsceneimporter_p.h> |
| |
| QT_BEGIN_NAMESPACE |
| |
| class QByteArray; |
| |
| namespace Qt3DCore { |
| class QEntity; |
| } |
| |
| namespace Qt3DRender { |
| |
| class QCamera; |
| class QCameraLens; |
| class QMaterial; |
| class QShaderProgram; |
| class QEffect; |
| class QAbstractTexture; |
| class QRenderState; |
| class QTechnique; |
| class QParameter; |
| class QGeometryRenderer; |
| class QAbstractLight; |
| class QRenderPass; |
| class QTexture2D; |
| |
| Q_DECLARE_LOGGING_CATEGORY(GLTFImporterLog) |
| |
| class GLTFImporter : public QSceneImporter |
| { |
| Q_OBJECT |
| |
| public: |
| GLTFImporter(); |
| ~GLTFImporter(); |
| |
| void setBasePath(const QString& path); |
| bool setJSON(const QJsonDocument &json); |
| |
| // SceneParserInterface interface |
| void setSource(const QUrl &source) final; |
| void setData(const QByteArray& data, const QString &basePath) final; |
| bool areFileTypesSupported(const QStringList &extensions) const final; |
| Qt3DCore::QEntity *node(const QString &id) final; |
| Qt3DCore::QEntity *scene(const QString &id = QString()) final; |
| |
| private: |
| 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, int major, int minor); |
| |
| QString bufferViewName; |
| QAttribute::VertexBaseType type; |
| uint dataSize; |
| int count; |
| int offset; |
| int stride; |
| }; |
| |
| static bool isGLTFSupported(const QStringList &extensions); |
| static bool isEmbeddedResource(const QString &url); |
| static void renameFromJson(const QJsonObject& json, QObject * const object ); |
| static bool hasStandardUniformNameFromSemantic(const QString &semantic); |
| static QString standardAttributeNameFromSemantic(const QString &semantic); |
| QParameter *parameterFromTechnique(QTechnique *technique, const QString ¶meterName); |
| |
| Qt3DCore::QEntity *defaultScene(); |
| QMaterial *material(const QString &id); |
| bool fillCamera(QCameraLens &lens, QCamera *cameraEntity, const QString &id) const; |
| |
| void parse(); |
| void parseV1(); |
| void parseV2(); |
| void cleanup(); |
| |
| void processJSONAsset(const QJsonObject &json); |
| void processJSONBuffer(const QString &id, const QJsonObject &json); |
| void processJSONBufferView(const QString &id, const QJsonObject &json); |
| void processJSONShader(const QString &id, const QJsonObject &jsonObject); |
| void processJSONProgram(const QString &id, const QJsonObject &jsonObject); |
| void processJSONTechnique(const QString &id, const QJsonObject &jsonObject); |
| void processJSONAccessor(const QString &id, const QJsonObject &json); |
| void processJSONMesh(const QString &id, const QJsonObject &json); |
| void processJSONImage(const QString &id, const QJsonObject &jsonObject); |
| void processJSONTexture(const QString &id, const QJsonObject &jsonObject); |
| void processJSONExtensions(const QString &id, const QJsonObject &jsonObject); |
| void processJSONEffect(const QString &id, const QJsonObject &jsonObject); |
| void processJSONRenderPass(const QString &id, const QJsonObject &jsonObject); |
| |
| void loadBufferData(); |
| void unloadBufferData(); |
| |
| QByteArray resolveLocalData(const QString &path) const; |
| |
| QVariant parameterValueFromJSON(int type, const QJsonValue &value) const; |
| static QAttribute::VertexBaseType accessorTypeFromJSON(int componentType); |
| static uint accessorDataSizeFromJson(const QString &type); |
| |
| static QRenderState *buildStateEnable(int state); |
| static QRenderState *buildState(const QString& functionName, const QJsonValue &value, int &type); |
| QParameter *buildParameter(const QString &key, const QJsonObject ¶mObj); |
| void populateRenderStates(QRenderPass *pass, const QJsonObject &states); |
| void addProgramToPass(QRenderPass *pass, const QString &progName); |
| |
| void setTextureSamplerInfo(const QString &id, const QJsonObject &jsonObj, QTexture2D *tex); |
| QMaterial *materialWithCustomShader(const QString &id, const QJsonObject &jsonObj); |
| QMaterial *commonMaterial(const QJsonObject &jsonObj); |
| QMaterial *pbrMaterial(const QJsonObject &jsonObj); |
| |
| QJsonDocument m_json; |
| QString m_basePath; |
| bool m_parseDone; |
| int m_majorVersion; |
| int m_minorVersion; |
| QString m_defaultScene; |
| |
| // multi-hash because our QMeshData corresponds to a single primitive |
| // in glTf. |
| QMultiHash<QString, QGeometryRenderer*> m_meshDict; |
| |
| // GLTF assigns materials at the mesh level, but we do them as siblings, |
| // so record the association here for when we instantiate meshes |
| QHash<QGeometryRenderer*, QString> m_meshMaterialDict; |
| |
| QHash<QString, AccessorData> m_accessorDict; |
| |
| QHash<QString, QMaterial*> m_materialCache; |
| |
| QHash<QString, BufferData> m_bufferDatas; |
| QHash<QString, Qt3DRender::QBuffer*> m_buffers; |
| |
| QHash<QString, QString> m_shaderPaths; |
| QHash<QString, QShaderProgram*> m_programs; |
| |
| QHash<QString, QTechnique *> m_techniques; |
| QHash<QString, QRenderPass *> m_renderPasses; |
| QHash<QString, QEffect *> m_effects; |
| QHash<QTechnique *, QList<QParameter *> > m_techniqueParameters; |
| QHash<QParameter*, ParameterData> m_parameterDataDict; |
| |
| QHash<QString, QAbstractTexture*> m_textures; |
| QHash<QString, QString> m_imagePaths; |
| QHash<QString, QImage> m_imageData; |
| QHash<QString, QAbstractLight *> m_lights; |
| }; |
| |
| } // namespace Qt3DRender |
| |
| QT_END_NAMESPACE |
| |
| #endif // GLTFIMPORTER_H |