138 class SK_API SkMatrix44 {
148     SkMatrix44(Uninitialized_Constructor) {}  // ironically, cannot be constexpr  in SkMatrix44()  function
150     constexpr SkMatrix44(Identity_Constructor)  in SkMatrix44()  function
158     constexpr SkMatrix44() : SkMatrix44{kIdentity_Constructor} {}  in SkMatrix44()  function
160     SkMatrix44(const SkMatrix44& src) {  in SkMatrix44()  function
165     SkMatrix44(const SkMatrix44& a, const SkMatrix44& b) {  in SkMatrix44()  function
169     SkMatrix44& operator=(const SkMatrix44& src) {
177     bool operator==(const SkMatrix44& other) const;
178     bool operator!=(const SkMatrix44& other) const {
190     SkMatrix44(const SkMatrix&);
191     SkMatrix44& operator=(const SkMatrix& src);
197     static const SkMatrix44& I();
374     void setConcat(const SkMatrix44& a, const SkMatrix44& b);
375     inline void preConcat(const SkMatrix44& m) {  in preConcat()
378     inline void postConcat(const SkMatrix44& m) {  in postConcat()
382     friend SkMatrix44 operator*(const SkMatrix44& a, const SkMatrix44& b) {
383         return SkMatrix44(a, b);
390     bool invert(SkMatrix44* inverse) const;
414     friend SkVector4 operator*(const SkMatrix44& m, const SkVector4& src) {