switch xfermodes over to sk_sp

include/core/SkCanvas.h

 /*
  * Copyright 2006 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef SkCanvas_DEFINED
 #define SkCanvas_DEFINED
 
@@ skipping 1035 matching lines @@
         @param indices If not null, array of indices to reference into the
                     vertex (texs, colors) array.
         @param indexCount number of entries in the indices array (if not null)
         @param paint Specifies the shader/texture if present.
     */
     void drawVertices(VertexMode vmode, int vertexCount,
                       const SkPoint vertices[], const SkPoint texs[],
                       const SkColor colors[], SkXfermode* xmode,
                       const uint16_t indices[], int indexCount,
                       const SkPaint& paint);
+    void drawVertices(VertexMode vmode, int vertexCount,
+                      const SkPoint vertices[], const SkPoint texs[],
+                      const SkColor colors[], sk_sp<SkXfermode>& xmode,
+                      const uint16_t indices[], int indexCount,
+                      const SkPaint& paint) {
+        this->drawVertices(vmode, vertexCount, vertices, texs, colors, xmode.get(),
+                           indices, indexCount, paint);
+    }
 
     /**
      Draw a cubic coons patch
 
      @param cubic specifies the 4 bounding cubic bezier curves of a patch with clockwise order
                     starting at the top left corner.
      @param colors specifies the colors for the corners which will be bilerp across the patch,
                     their order is clockwise starting at the top left corner.
      @param texCoords specifies the texture coordinates that will be bilerp across the patch,
                     their order is the same as the colors.
      @param xmode specifies how are the colors and the textures combined if both of them are
                     present.
      @param paint Specifies the shader/texture if present.
      */
     void drawPatch(const SkPoint cubics[12], const SkColor colors[4],
                    const SkPoint texCoords[4], SkXfermode* xmode, const SkPaint& paint);
+    void drawPatch(const SkPoint cubics[12], const SkColor colors[4], const SkPoint texCoords[4],
+                   const sk_sp<SkXfermode>& xmode, const SkPaint& paint) {
+        this->drawPatch(cubics, colors, texCoords, xmode.get(), paint);
+    }
 
     /**
      *  Draw a set of sprites from the atlas. Each is specified by a tex rectangle in the
      *  coordinate space of the atlas, and a corresponding xform which transforms the tex rectangle
      *  into a quad.
      *
      *      xform maps [0, 0, tex.width, tex.height] -> quad
      *
      *  The color array is optional. When specified, each color modulates the pixels in its
      *  corresponding quad (via the specified SkXfermode::Mode).
@@ skipping 472 matching lines @@
 
 class SkCanvasClipVisitor {
 public:
     virtual ~SkCanvasClipVisitor();
     virtual void clipRect(const SkRect&, SkRegion::Op, bool antialias) = 0;
     virtual void clipRRect(const SkRRect&, SkRegion::Op, bool antialias) = 0;
     virtual void clipPath(const SkPath&, SkRegion::Op, bool antialias) = 0;
 };
 
 #endif