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| 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 "SkDistan
ceFieldGen.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& viewMat
rix, |
| 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 |
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