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#pragma once
#include <mbgl/util/image.hpp>
namespace mbgl {
namespace util {
/*
C++ port of https://github.com/mapbox/tiny-sdf, which is in turn based on the
Felzenszwalb/Huttenlocher distance transform paper (https://cs.brown.edu/~pff/papers/dt-final.pdf).
Note there exists an alternative C++ implementation from the paper’s authors at
https://cs.brown.edu/~pff/dt/, which this implementation is not based on.
Takes an alpha channel raster input and transforms it into an alpha channel
Signed Distance Field (SDF) output of the same dimensions.
*/
AlphaImage transformRasterToSDF(const AlphaImage& rasterInput, double radius, double cutoff);
} // namespace util
} // namespace mbgl
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