deriveLeftRightTopIdx 1497 source/common/cudata.cpp     deriveLeftRightTopIdx(puIdx, partIdxLT, partIdxRT);
deriveLeftRightTopIdx 1813 source/common/cudata.cpp     deriveLeftRightTopIdx(puIdx, partIdxLT, partIdxRT);
deriveLeftRightTopIdx  328 source/common/cudata.h     void     deriveLeftRightTopIdx(uint32_t puIdx, uint32_t& partIdxLT, uint32_t& partIdxRT) const;