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

src/effects/gradients/SkLinearGradient.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 "SkLinearGradient.h"
 
@@ skipping 44 matching lines @@
     SkScalar    inv = mag ? SkScalarInvert(mag) : 0;
 
     vec.scale(inv);
     matrix->setSinCos(-vec.fY, vec.fX, pts[0].fX, pts[0].fY);
     matrix->postTranslate(-pts[0].fX, -pts[0].fY);
     matrix->postScale(inv, inv);
 }
 
 ///////////////////////////////////////////////////////////////////////////////
 
-SkLinearGradient::SkLinearGradient(const SkPoint pts[2],
-                                   const SkColor colors[],
-                                   const SkScalar pos[],
-                                   int colorCount,
-                                   SkShader::TileMode mode,
-                                   SkUnitMapper* mapper)
-    : SkGradientShaderBase(colors, pos, colorCount, mode, mapper)
+SkLinearGradient::SkLinearGradient(const SkPoint pts[2], const Descriptor& desc)
+    : SkGradientShaderBase(desc)
     , fStart(pts[0])
     , fEnd(pts[1]) {
     pts_to_unit_matrix(pts, &fPtsToUnit);
 }
 
 SkLinearGradient::SkLinearGradient(SkFlattenableReadBuffer& buffer)
     : INHERITED(buffer)
     , fStart(buffer.readPoint())
     , fEnd(buffer.readPoint()) {
 }
@@ skipping 491 matching lines @@
     str->append("SkLinearGradient (");
 
     str->appendf("start: (%f, %f)", fStart.fX, fStart.fY);
     str->appendf(" end: (%f, %f) ", fEnd.fX, fEnd.fY);
 
     this->INHERITED::toString(str);
 
     str->append(")");
 }
 #endif