1 /* 2 * Copyright 2015 Google Inc. 3 * 4 * Use of this source code is governed by a BSD-style license that can be 5 * found in the LICENSE file. 6 */ 7 8 #ifndef GrTessellator_DEFINED 9 #define GrTessellator_DEFINED 10 11 #include "SkPath.h" 12 #include "GrResourceProvider.h" 13 14 /** 15 * Provides utility functions for converting paths to a collection of triangles. 16 */ 17 18 #define TESSELLATOR_WIREFRAME 0 19 20 namespace GrTessellator { 21 22 struct WindingVertex { 23 SkPoint fPos; 24 int fWinding; 25 }; 26 27 // Triangulates a path to an array of vertices. Each triangle is represented as a set of three 28 // WindingVertex entries, each of which contains the position and winding count (which is the same 29 // for all three vertices of a triangle). The 'verts' out parameter is set to point to the resultant 30 // vertex array. CALLER IS RESPONSIBLE for deleting this buffer to avoid a memory leak! 31 int PathToVertices(const SkPath& path, SkScalar tolerance, const SkRect& clipBounds, 32 WindingVertex** verts); 33 34 int PathToTriangles(const SkPath& path, SkScalar tolerance, const SkRect& clipBounds, 35 GrResourceProvider* resourceProvider, 36 SkAutoTUnref<GrVertexBuffer>& vertexBuffer, bool canMapVB, bool* isLinear); 37 38 } 39 40 #endif 41
