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/*
* Copyright 2015 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef GrTessellator_DEFINED
#define GrTessellator_DEFINED
#include "SkPath.h"
#include "GrResourceProvider.h"
/**
* Provides utility functions for converting paths to a collection of triangles.
*/
#define TESSELLATOR_WIREFRAME 0
namespace GrTessellator {
struct WindingVertex {
SkPoint fPos;
int fWinding;
};
// Triangulates a path to an array of vertices. Each triangle is represented as a set of three
// WindingVertex entries, each of which contains the position and winding count (which is the same
// for all three vertices of a triangle). The 'verts' out parameter is set to point to the resultant
// vertex array. CALLER IS RESPONSIBLE for deleting this buffer to avoid a memory leak!
int PathToVertices(const SkPath& path, SkScalar tolerance, const SkRect& clipBounds,
WindingVertex** verts);
int PathToTriangles(const SkPath& path, SkScalar tolerance, const SkRect& clipBounds,
GrResourceProvider* resourceProvider,
SkAutoTUnref<GrVertexBuffer>& vertexBuffer, bool canMapVB, bool* isLinear);
}
#endif
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