skeletonQuery.h

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//
// Copyright 2016 Pixar
//
// Licensed under the terms set forth in the LICENSE.txt file available at
// https://openusd.org/license.
//
#ifndef PXR_USD_USD_SKEL_SKELETON_QUERY_H
#define PXR_USD_USD_SKEL_SKELETON_QUERY_H
 
 
#include "pxr/pxr.h"
#include "pxr/usd/usdSkel/api.h"
 
#include "pxr/base/tf/declarePtrs.h"
#include "pxr/base/vt/types.h"
 
#include "pxr/usd/usd/prim.h"
 
#include "pxr/usd/usdSkel/animMapper.h"
#include "pxr/usd/usdSkel/animQuery.h"
 
 
PXR_NAMESPACE_OPEN_SCOPE
 
class UsdGeomXformCache;
class UsdSkelSkeleton;
class UsdSkelTopology;
 
TF_DECLARE_REF_PTRS(UsdSkel_SkelDefinition);
 
 
class UsdSkelSkeletonQuery
{
public:
    UsdSkelSkeletonQuery() {}
 
    bool IsValid() const { return _definition; }
 
    explicit operator bool() const { return IsValid(); }
 
    friend bool operator==(const UsdSkelSkeletonQuery& lhs,
                           const UsdSkelSkeletonQuery& rhs) {
        return lhs._definition == rhs._definition &&
               lhs._animQuery == rhs._animQuery;
    }
 
    friend bool operator!=(const UsdSkelSkeletonQuery& lhs,
                           const UsdSkelSkeletonQuery& rhs) {
        return !(lhs == rhs);
    }
 
    USDSKEL_API
    bool HasBindPose() const;
 
    USDSKEL_API
    bool HasRestPose() const;
 
    // hash_value overload for std/boost hash.
    USDSKEL_API
    friend size_t hash_value(const UsdSkelSkeletonQuery& query);
 
    USDSKEL_API
    UsdPrim GetPrim() const;
 
    USDSKEL_API
    const UsdSkelSkeleton& GetSkeleton() const;
    
    USDSKEL_API
    const UsdSkelAnimQuery& GetAnimQuery() const;
    
    USDSKEL_API
    const UsdSkelTopology& GetTopology() const;
 
    USDSKEL_API
    const UsdSkelAnimMapper& GetMapper() const;
 
    USDSKEL_API
    VtTokenArray GetJointOrder() const;
 
    template <typename Matrix4>
    USDSKEL_API
    bool ComputeJointLocalTransforms(VtArray<Matrix4>* xforms,
                                     UsdTimeCode time,
                                     bool atRest=false) const;
 
    template <typename Matrix4>
    USDSKEL_API
    bool ComputeJointSkelTransforms(VtArray<Matrix4>* xforms,
                                    UsdTimeCode time,
                                    bool atRest=false) const;
 
    template <typename Matrix4>
    USDSKEL_API
    bool ComputeJointRestRelativeTransforms(VtArray<Matrix4>* xforms,
                                            UsdTimeCode time) const;
 
    template <typename Matrix4>
    USDSKEL_API
    bool ComputeJointWorldTransforms(VtArray<Matrix4>* xforms,
                                     UsdGeomXformCache* xfCache,
                                     bool atRest=false) const;
 
    template <typename Matrix4>
    USDSKEL_API
    bool ComputeSkinningTransforms(VtArray<Matrix4>* xforms,
                                   UsdTimeCode time) const;
 
    template <typename Matrix4>
    USDSKEL_API
    bool GetJointWorldBindTransforms(VtArray<Matrix4>* xforms) const;
 
    USDSKEL_API
    std::string GetDescription() const;
 
private:
 
    USDSKEL_API
    UsdSkelSkeletonQuery(const UsdSkel_SkelDefinitionRefPtr& definition,
                         const UsdSkelAnimQuery& anim=UsdSkelAnimQuery());
 
    bool _HasMappableAnim() const;
 
    template <typename Matrix4>
    bool _ComputeJointLocalTransforms(VtArray<Matrix4>* xforms,
                                      UsdTimeCode time,
                                      bool atRest=false) const;
 
    template <typename Matrix4>
    bool _ComputeJointSkelTransforms(VtArray<Matrix4>* xforms,
                                     UsdTimeCode time,
                                     bool atRest=false) const;
 
    template <typename Matrix4>
    bool _ComputeSkinningTransforms(VtArray<Matrix4>* xforms,
                                    UsdTimeCode time) const;
 
private:
    UsdSkel_SkelDefinitionRefPtr _definition;
    UsdSkelAnimQuery _animQuery;
    UsdSkelAnimMapper _animToSkelMapper;
 
    friend class UsdSkel_CacheImpl;
};
 
 
PXR_NAMESPACE_CLOSE_SCOPE
 
#endif // PXR_USD_USD_SKEL_SKELETON_QUERY_H