1 /* 2 * Copyright 2017 ARM Ltd. 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 GrDistanceFieldGenFromVector_DEFINED 9 #define GrDistanceFieldGenFromVector_DEFINED 10 11 #include "SkPath.h" 12 13 class SkMatrix; 14 15 #ifndef SK_USE_LEGACY_DISTANCE_FIELDS 16 #define SK_USE_LEGACY_DISTANCE_FIELDS 17 #endif 18 19 /** Given a vector path, generate the associated distance field. 20 21 * @param distanceField The distance field to be generated. Should already be allocated 22 * by the client with the padding defined in "SkDistanceFieldGen.h". 23 * @param path The path we're using to generate the distance field. 24 * @param matrix Transformation matrix for path. 25 * @param width Width of the distance field. 26 * @param height Height of the distance field. 27 * @param rowBytes Size of each row in the distance field, in bytes. 28 */ 29 bool GrGenerateDistanceFieldFromPath(unsigned char* distanceField, 30 const SkPath& path, const SkMatrix& viewMatrix, 31 int width, int height, size_t rowBytes); 32 33 inline bool IsDistanceFieldSupportedFillType(SkPath::FillType fFillType) 34 { 35 return (SkPath::kEvenOdd_FillType == fFillType || 36 SkPath::kInverseEvenOdd_FillType == fFillType); 37 } 38 39 #endif 40
