use Descriptor struct to encapsulate all the common paramaeters between our various gradient types.…

src/effects/gradients/SkSweepGradient.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 "SkSweepGradient.h"
 
-SkSweepGradient::SkSweepGradient(SkScalar cx, SkScalar cy, const SkColor colors[],
-               const SkScalar pos[], int count, SkUnitMapper* mapper)
-: SkGradientShaderBase(colors, pos, count, SkShader::kClamp_TileMode, mapper),
+SkSweepGradient::SkSweepGradient(SkScalar cx, SkScalar cy,
+                                 const Descriptor& desc)
+: SkGradientShaderBase(desc),
   fCenter(SkPoint::Make(cx, cy))
 {
     fPtsToUnit.setTranslate(-cx, -cy);
+
+    // overwrite the tilemode to a canonical value (since sweep ignores it)
+    fTileMode = SkShader::kClamp_TileMode;
 }
 
 SkShader::BitmapType SkSweepGradient::asABitmap(SkBitmap* bitmap,
     SkMatrix* matrix, SkShader::TileMode* xy) const {
     if (bitmap) {
         this->getGradientTableBitmap(bitmap);
     }
     if (matrix) {
         *matrix = fPtsToUnit;
     }
@@ skipping 478 matching lines @@
     str->appendScalar(fCenter.fX);
     str->append(", ");
     str->appendScalar(fCenter.fY);
     str->append(") ");
 
     this->INHERITED::toString(str);
 
     str->append(")");
 }
 #endif