12345678910111213141516171819202122232425262728293031323334353637383940414243 |
- /*
- * Copyright 2017 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
- #ifndef SkShadowTessellator_DEFINED
- #define SkShadowTessellator_DEFINED
- #include "include/core/SkColor.h"
- #include "include/core/SkPoint.h"
- #include "include/core/SkRefCnt.h"
- class SkMatrix;
- class SkPath;
- struct SkPoint3;
- class SkVertices;
- namespace SkShadowTessellator {
- typedef std::function<SkScalar(SkScalar, SkScalar)> HeightFunc;
- /**
- * This function generates an ambient shadow mesh for a path by walking the path, outsetting by
- * the radius, and setting inner and outer colors to umbraColor and penumbraColor, respectively.
- * If transparent is true, then the center of the ambient shadow will be filled in.
- */
- sk_sp<SkVertices> MakeAmbient(const SkPath& path, const SkMatrix& ctm,
- const SkPoint3& zPlane, bool transparent);
- /**
- * This function generates a spot shadow mesh for a path by walking the transformed path,
- * further transforming by the scale and translation, and outsetting and insetting by a radius.
- * The center will be clipped against the original path unless transparent is true.
- */
- sk_sp<SkVertices> MakeSpot(const SkPath& path, const SkMatrix& ctm, const SkPoint3& zPlane,
- const SkPoint3& lightPos, SkScalar lightRadius, bool transparent);
- }
- #endif
|