Add flipped gradient branch to two point conical gradient

src/effects/gradients/SkTwoPointConicalGradient.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 "SkTwoPointConicalGradient.h"
 
 #include "SkTwoPointConicalGradient_gpu.h"
@@ skipping 77 matching lines @@
     fRelY = SkScalarToFloat(fy) - fCenterY;
     fIncX = SkScalarToFloat(dfx);
     fIncY = SkScalarToFloat(dfy);
     fB = -2 * (fDCenterX * fRelX + fDCenterY * fRelY + fRDR);
     fDB = -2 * (fDCenterX * fIncX + fDCenterY * fIncY);
 }
 
 SkFixed TwoPtRadial::nextT() {
     float roots[2];
 
-    float C = sqr(fRelX) + sqr(fRelY) - fRec.fRadius2;
-    int countRoots = find_quad_roots(fRec.fA, fB, C, roots, fRec.fFlipped);
+    float C = sqr(fRelX) + sqr(fRelY) - fRadius2;
+    int countRoots = find_quad_roots(fA, fB, C, roots, fFlipped);
 
     fRelX += fIncX;
     fRelY += fIncY;
     fB += fDB;
 
     if (0 == countRoots) {
         return kDontDrawT;
     }
 
     // Prefer the bigger t value if both give a radius(t) > 0
@@ skipping 189 matching lines @@
         }
         matrix->preTranslate(-fCenter1.fX, -fCenter1.fY);
     }
     if (xy) {
         xy[0] = fTileMode;
         xy[1] = kClamp_TileMode;
     }
     return kTwoPointConical_BitmapType;
 }
 
+// Returns the original non-sorted version of the gradient
 SkShader::GradientType SkTwoPointConicalGradient::asAGradient(
     GradientInfo* info) const {
     if (info) {
-        commonAsAGradient(info);
+        commonAsAGradient(info, fFlippedGrad);
         info->fPoint[0] = fCenter1;
         info->fPoint[1] = fCenter2;
         info->fRadius[0] = fRadius1;
         info->fRadius[1] = fRadius2;
+        if (fFlippedGrad) {
+            SkTSwap(info->fPoint[0], info->fPoint[1]);
+            SkTSwap(info->fRadius[0], info->fRadius[1]);
+        }
     }
     return kConical_GradientType;
 }
 
 SkTwoPointConicalGradient::SkTwoPointConicalGradient(
     SkReadBuffer& buffer)
     : INHERITED(buffer),
     fCenter1(buffer.readPoint()),
     fCenter2(buffer.readPoint()),
     fRadius1(buffer.readScalar()),
@@ skipping 61 matching lines @@
     str->appendScalar(fCenter2.fY);
     str->append(") radius2: ");
     str->appendScalar(fRadius2);
     str->append(" ");
 
     this->INHERITED::toString(str);
 
     str->append(")");
 }
 #endif