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1 /* | |
2 * Copyright 2014 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 #ifndef SkDistanceFieldGen_DEFINED | |
8 #define SkDistanceFieldGen_DEFINED | |
9 | |
10 /** Given 8-bit mask data, generate the associated distance field | |
11 | |
12 * @param distanceField The distance field to be generated. Should already
be allocated | |
13 * by the client with the padding below. | |
14 * @param image 8-bit mask we're using to generate the distance fie
ld. | |
15 * @param w Width of the image. | |
16 * @param h Height of the image. | |
17 * @param distanceMagnitude Largest possible absolute value for the distance. T
he distance field | |
18 * will be padded to w + 2*distanceMagnitude, h + 2*di
stanceMagnitude. | |
19 */ | |
20 bool SkGenerateDistanceFieldFromImage(unsigned char* distanceField, | |
21 const unsigned char* image, | |
22 int w, int h, | |
23 int distanceMagnitude); | |
24 | |
25 #endif | |
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