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| |
| #ifndef QT3DANIMATION_ANIMATION_GLTFIMPORTER_H |
| #define QT3DANIMATION_ANIMATION_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 <QtGlobal> |
| #include <Qt3DAnimation/private/fcurve_p.h> |
| #include <Qt3DRender/qattribute.h> |
| #include <Qt3DCore/private/sqt_p.h> |
| #include <Qt3DCore/private/qmath3d_p.h> |
| |
| #include <QJsonDocument> |
| #include <QJsonObject> |
| #include <QJsonArray> |
| #include <QJsonValue> |
| #include <QVector> |
| |
| QT_BEGIN_NAMESPACE |
| |
| class QIODevice; |
| |
| namespace Qt3DAnimation { |
| namespace Animation { |
| |
| class GLTFImporter |
| { |
| public: |
| class BufferData |
| { |
| public: |
| BufferData(); |
| explicit BufferData(const QJsonObject &json); |
| |
| quint64 byteLength; |
| QString path; |
| QByteArray data; |
| }; |
| |
| class BufferView |
| { |
| public: |
| BufferView(); |
| explicit BufferView(const QJsonObject &json); |
| |
| quint64 byteOffset; |
| quint64 byteLength; |
| int bufferIndex; |
| int target; // Only for per vertex attributes |
| }; |
| |
| class AccessorData |
| { |
| public: |
| AccessorData(); |
| explicit AccessorData(const QJsonObject &json); |
| |
| int bufferViewIndex; |
| Qt3DRender::QAttribute::VertexBaseType type; |
| uint dataSize; |
| int count; |
| int byteOffset; |
| int byteStride; // Only for per vertex attributes |
| |
| // TODO: Extend to support sparse accessors |
| }; |
| |
| class Skin |
| { |
| public: |
| Skin(); |
| explicit Skin(const QJsonObject &json); |
| |
| QString name; |
| int inverseBindAccessorIndex; |
| QVector<int> jointNodeIndices; |
| }; |
| |
| class Channel |
| { |
| public: |
| Channel(); |
| explicit Channel(const QJsonObject &json); |
| |
| int samplerIndex; |
| int targetNodeIndex; |
| QString targetProperty; |
| }; |
| |
| class Sampler |
| { |
| public: |
| Sampler(); |
| explicit Sampler(const QJsonObject &json); |
| |
| enum InterpolationMode { |
| Linear, |
| Step, |
| CatmullRomSpline, |
| CubicSpline |
| }; |
| |
| QString interpolationModeString() const; |
| |
| int inputAccessorIndex; |
| int outputAccessorIndex; |
| InterpolationMode interpolationMode; |
| }; |
| |
| class Animation |
| { |
| public: |
| Animation(); |
| explicit Animation(const QJsonObject &json); |
| |
| QString name; |
| QVector<Channel> channels; |
| QVector<Sampler> samplers; |
| }; |
| |
| class Node |
| { |
| public: |
| Node(); |
| explicit Node(const QJsonObject &json); |
| |
| Qt3DCore::Sqt localTransform; |
| QVector<int> childNodeIndices; |
| QString name; |
| int parentNodeIndex; |
| int cameraIndex; |
| int meshIndex; |
| int skinIndex; |
| }; |
| |
| GLTFImporter(); |
| |
| bool load(QIODevice *ioDev); |
| const QVector<Animation> animations() const { return m_animations; } |
| |
| struct AnimationNameAndChannels |
| { |
| QString name; |
| QVector<Qt3DAnimation::Animation::Channel> channels; |
| }; |
| AnimationNameAndChannels createAnimationData(int animationIndex, const QString &animationName = QString()) const; |
| |
| private: |
| static Qt3DRender::QAttribute::VertexBaseType accessorTypeFromJSON(int componentType); |
| static uint accessorTypeSize(Qt3DRender::QAttribute::VertexBaseType componentType); |
| static uint accessorDataSizeFromJson(const QString &type); |
| |
| struct RawData |
| { |
| const char *data; |
| quint64 byteLength; |
| }; |
| |
| void setBasePath(const QString &path); |
| bool setJSON(const QJsonDocument &json); |
| |
| bool parse(); |
| bool parseGLTF2(); |
| void cleanup(); |
| QHash<int, int> createNodeIndexToJointIndexMap(const Skin &skin) const; |
| |
| bool processJSONBuffer(const QJsonObject &json); |
| bool processJSONBufferView(const QJsonObject &json); |
| bool processJSONAccessor(const QJsonObject &json); |
| bool processJSONSkin(const QJsonObject &json); |
| bool processJSONAnimation(const QJsonObject &json); |
| bool processJSONNode(const QJsonObject &json); |
| void setupNodeParentLinks(); |
| QByteArray resolveLocalData(const QString &path) const; |
| |
| RawData accessorData(int accessorIndex, int index) const; |
| |
| QJsonDocument m_json; |
| QString m_basePath; |
| QVector<BufferData> m_bufferDatas; |
| QVector<BufferView> m_bufferViews; |
| QVector<AccessorData> m_accessors; |
| QVector<Skin> m_skins; |
| QVector<Animation> m_animations; |
| QVector<Node> m_nodes; |
| }; |
| |
| } // namespace Animation |
| } // namespace Qt3DAnimation |
| |
| QT_END_NAMESPACE |
| |
| #endif // QT3DANIMATION_ANIMATION_GLTFIMPORTER_H |