ios fixes

src/core/SkPoint.cpp

Index: src/core/SkPoint.cpp
diff --git a/src/core/SkPoint.cpp b/src/core/SkPoint.cpp
index 719ee54b225ae72e57ee6752ab22a107178adc66..d2daa6dea04097a94e9de1545cb598a839e01ada 100644
--- a/src/core/SkPoint.cpp
+++ b/src/core/SkPoint.cpp
@@ -168,7 +168,14 @@ bool SkPoint::setLength(float x, float y, float length) {
         // divide by inf. and return (0,0) vector.
         double xx = x;
         double yy = y;
+    #ifdef SK_BUILD_FOR_IOS
+        double dscale = length / sqrt(xx * xx + yy * yy);

[reed1, 2014/07/10 18:39:39]

Can we add a comment and/or bug/test ref to explain why we need this?

I wonder if we want a new flag (not necessarily iOS specific) that triggers
this? e.g. SK_FAST_UNDERFLOW_BEHAVIOR? Just a though, which might also help
document what's going on.

[caryclark, 2014/07/10 21:07:03]

Done.

+        fX = x * dscale;
+        fY = y * dscale;
+        return true;
+    #else
         scale = (float)(length / sqrt(xx * xx + yy * yy));
+    #endif
     }
     fX = x * scale;
     fY = y * scale;