SkMatrix44::preserves2dAxisAlignment()

include/utils/SkMatrix44.h

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef SkMatrix44_DEFINED
 #define SkMatrix44_DEFINED
 
@@ skipping 355 matching lines @@
      *  map an array of [x, y, 0, 1] through the matrix, returning an array
      *  of [x', y', z', w'].
      *
      *  @param src2     array of [x, y] pairs, with implied z=0 and w=1
      *  @param count    number of [x, y] pairs in src2
      *  @param dst4     array of [x', y', z', w'] quads as the output.
      */
     void map2(const float src2[], int count, float dst4[]) const;
     void map2(const double src2[], int count, double dst4[]) const;
 
+    bool preserves2dAxisAlignment () const;
+
     void dump() const;
 
     double determinant() const;
 
 private:
     SkMScalar           fMat[4][4];
     mutable unsigned    fTypeMask;
 
     enum {
         kUnknown_Mask = 0x80,
@@ skipping 27 matching lines @@
     /**
      *  Does not take the time to 'compute' the typemask. Only returns true if
      *  we already know that this matrix is identity.
      */
     inline bool isTriviallyIdentity() const {
         return 0 == fTypeMask;
     }
 };
 
 #endif