michael@0: 
michael@0: /*
michael@0:  * Copyright 2006 The Android Open Source Project
michael@0:  *
michael@0:  * Use of this source code is governed by a BSD-style license that can be
michael@0:  * found in the LICENSE file.
michael@0:  */
michael@0: 
michael@0: 
michael@0: #ifndef SkStrokerPriv_DEFINED
michael@0: #define SkStrokerPriv_DEFINED
michael@0: 
michael@0: #include "SkStroke.h"
michael@0: 
michael@0: #define CWX(x, y)   (-y)
michael@0: #define CWY(x, y)   (x)
michael@0: #define CCWX(x, y)  (y)
michael@0: #define CCWY(x, y)  (-x)
michael@0: 
michael@0: #define CUBIC_ARC_FACTOR    ((SK_ScalarSqrt2 - SK_Scalar1) * 4 / 3)
michael@0: 
michael@0: class SkStrokerPriv {
michael@0: public:
michael@0:     typedef void (*CapProc)(SkPath* path,
michael@0:                             const SkPoint& pivot,
michael@0:                             const SkVector& normal,
michael@0:                             const SkPoint& stop,
michael@0:                             SkPath* otherPath);
michael@0: 
michael@0:     typedef void (*JoinProc)(SkPath* outer, SkPath* inner,
michael@0:                              const SkVector& beforeUnitNormal,
michael@0:                              const SkPoint& pivot,
michael@0:                              const SkVector& afterUnitNormal,
michael@0:                              SkScalar radius, SkScalar invMiterLimit,
michael@0:                              bool prevIsLine, bool currIsLine);
michael@0: 
michael@0:     static CapProc  CapFactory(SkPaint::Cap);
michael@0:     static JoinProc JoinFactory(SkPaint::Join);
michael@0: };
michael@0: 
michael@0: #endif