make transformed rrect radii fit rectangle

src/core/SkRRect.cpp

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include <cmath>
 #include "SkRRect.h"
 #include "SkMatrix.h"
@@ skipping 140 matching lines @@
         } else {
             allCornersSquare = false;
         }
     }
 
     if (allCornersSquare) {
         this->setRect(rect);
         return;
     }
 
+    this->scaleRadii();
+}
+
+void SkRRect::scaleRadii() {
+
     // Proportionally scale down all radii to fit. Find the minimum ratio
     // of a side and the radii on that side (for all four sides) and use
     // that to scale down _all_ the radii. This algorithm is from the
     // W3 spec (http://www.w3.org/TR/css3-background/) section 5.5 - Overlapping
     // Curves:
     // "Let f = min(Li/Si), where i is one of { top, right, bottom, left },
     //   Si is the sum of the two corresponding radii of the corners on side i,
     //   and Ltop = Lbottom = the width of the box,
     //   and Lleft = Lright = the height of the box.
     // If f < 1, then all corner radii are reduced by multiplying them by f."
@@ skipping 242 matching lines @@
             // Only swap in x
             SkTSwap(dst->fRadii[kUpperRight_Corner], dst->fRadii[kUpperLeft_Corner]);
             SkTSwap(dst->fRadii[kLowerRight_Corner], dst->fRadii[kLowerLeft_Corner]);
         }
     } else if (flipY) {
         // Only swap in y
         SkTSwap(dst->fRadii[kUpperLeft_Corner], dst->fRadii[kLowerLeft_Corner]);
         SkTSwap(dst->fRadii[kUpperRight_Corner], dst->fRadii[kLowerRight_Corner]);
     }
 
-    SkDEBUGCODE(dst->validate();)
+    dst->scaleRadii();
 
     return true;
 }
 
 ///////////////////////////////////////////////////////////////////////////////
 
 void SkRRect::inset(SkScalar dx, SkScalar dy, SkRRect* dst) const {
     const SkRect r = fRect.makeInset(dx, dy);
 
     if (r.isEmpty()) {
@@ skipping 130 matching lines @@
     }
 
     for (int i = 0; i < 4; ++i) {
         validate_radius_check_predicates(fRadii[i].fX, fRect.fLeft, fRect.fRight);
         validate_radius_check_predicates(fRadii[i].fY, fRect.fTop, fRect.fBottom);
     }
 }
 #endif // SK_DEBUG
 
 ///////////////////////////////////////////////////////////////////////////////