create struct to hold all the params passed around for shader::context

src/effects/gradients/SkTwoPointConicalGradient.h

 
 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef SkTwoPointConicalGradient_DEFINED
 #define SkTwoPointConicalGradient_DEFINED
@@ skipping 30 matching lines @@
     TwoPtRadial fRec;
     void init();
 
 public:
     SkTwoPointConicalGradient(const SkPoint& start, SkScalar startRadius,
                               const SkPoint& end, SkScalar endRadius,
                               bool flippedGrad, const Descriptor&,
                               const SkMatrix* localMatrix);
 
 
-    virtual SkShader::Context* createContext(const SkBitmap&, const SkPaint&, const SkMatrix&,
-                                             void* storage) const SK_OVERRIDE;
+    virtual SkShader::Context* createContext(const ContextRec&, void* storage) const SK_OVERRIDE;
     virtual size_t contextSize() const SK_OVERRIDE;
 
     class TwoPointConicalGradientContext : public SkGradientShaderBase::GradientShaderBaseContext {
     public:
-        TwoPointConicalGradientContext(const SkTwoPointConicalGradient& shader,
-                                       const SkBitmap& device,
-                                       const SkPaint& paint,
-                                       const SkMatrix& matrix);
+        TwoPointConicalGradientContext(const SkTwoPointConicalGradient&, const ContextRec&);
         ~TwoPointConicalGradientContext() {}
 
         virtual void shadeSpan(int x, int y, SkPMColor dstC[], int count) SK_OVERRIDE;
 
     private:
         typedef SkGradientShaderBase::GradientShaderBaseContext INHERITED;
     };
 
     virtual BitmapType asABitmap(SkBitmap* bitmap,
                                  SkMatrix* matrix,
@@ skipping 21 matching lines @@
     SkPoint fCenter1;
     SkPoint fCenter2;
     SkScalar fRadius1;
     SkScalar fRadius2;
     bool fFlippedGrad;
 
     typedef SkGradientShaderBase INHERITED;
 };
 
 #endif