Analytic AntiAlias for Convex Shapes

src/core/SkEdge.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 SkEdge_DEFINED
 #define SkEdge_DEFINED
@@ skipping 50 matching lines @@
     }
 #endif
 };
 
 struct SkQuadraticEdge : public SkEdge {
     SkFixed fQx, fQy;
     SkFixed fQDx, fQDy;
     SkFixed fQDDx, fQDDy;
     SkFixed fQLastX, fQLastY;
 
+    bool setQuadraticWithoutUpdate(const SkPoint pts[3], int shiftUp);
     int setQuadratic(const SkPoint pts[3], int shiftUp);
     int updateQuadratic();
 };
 
 struct SkCubicEdge : public SkEdge {
     SkFixed fCx, fCy;
     SkFixed fCDx, fCDy;
     SkFixed fCDDx, fCDDy;
     SkFixed fCDDDx, fCDDDy;
     SkFixed fCLastX, fCLastY;
 
+    bool setCubicWithoutUpdate(const SkPoint pts[4], int shiftUp);
     int setCubic(const SkPoint pts[4], int shiftUp);
     int updateCubic();
 };
 
 int SkEdge::setLine(const SkPoint& p0, const SkPoint& p1, int shift) {
     SkFDot6 x0, y0, x1, y1;
 
     {
 #ifdef SK_RASTERIZE_EVEN_ROUNDING
         x0 = SkScalarRoundToFDot6(p0.fX, shift);
@@ skipping 31 matching lines @@
     fX          = SkFDot6ToFixed(x0 + SkFixedMul(slope, dy));   // + SK_Fixed1/2
     fDX         = slope;
     fFirstY     = top;
     fLastY      = bot - 1;
     fCurveCount = 0;
     fWinding    = SkToS8(winding);
     fCurveShift = 0;
     return 1;
 }
 
-
 #endif