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/*
* Copyright 2014 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef SkDistanceFieldGen_DEFINED
#define SkDistanceFieldGen_DEFINED
/** Given 8-bit mask data, generate the associated distance field
* @param distanceField The distance field to be generated. Should already be allocated
* by the client with the padding below.
* @param image 8-bit mask we're using to generate the distance field.
* @param w Width of the image.
* @param h Height of the image.
* @param distanceMagnitude Largest possible absolute value for the distance. The distance field
* will be padded to w + 2*distanceMagnitude, h + 2*distanceMagnitude.
*/
bool SkGenerateDistanceFieldFromImage(unsigned char* distanceField,
const unsigned char* image,
int w, int h,
int distanceMagnitude);
#endif
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