GLTF_Util.h

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#ifndef __SOP_GLTFUTIL_H__
#define __SOP_GLTFUTIL_H__

#include "GLTF_API.h"
#include "GLTF_Types.h"

namespace GLTF_NAMESPACE
{

class GLTF_API GLTF_Util
{
public:
    template <typename T>
    static T
    readInterleavedElement(unsigned char *data, uint32 stride, uint32 index)
    {
        return *reinterpret_cast<T *>(data + stride * index);
    }

    static const char *typeGetName(GLTF_Type type);
    static GLTF_Int componentTypeGetBytes(GLTF_ComponentType type);
    static GLTF_Int typeGetElements(GLTF_Type type);
    static GLTF_Int
    getDefaultStride(GLTF_Type type, GLTF_ComponentType component_type);

    ///
    /// Returns 0 if previous_stride == 0 and GetDefaultStride otherwise.
    ///
    static GLTF_Int getStride(uint32 previous_stride, GLTF_Type type,
                                       GLTF_ComponentType component_type);

    static GLTF_Type getTypeForTupleSize(uint32 tuplesize);

    ///
    /// Returns a list of the scene names in the given filename,
    /// where the index in the returned array corrosponds to the
    /// scene index, and the value corrosponds to the name if one
    /// exists, and "" othewise.
    ///
    static UT_Array<UT_String> getSceneList(const UT_String &filename);

    static bool
    DecomposeMatrixToTRS(const UT_Matrix4F &mat, UT_Vector3F &translation,
                         UT_Quaternion &rotation, UT_Vector3F scale);

    static const char *getLightTypeName(GLTF_LightType type);
};

} // end GLTF_NAMESPACE

#endif