SkPerlinNoiseShader.h

/*
 * Copyright 2013 Google Inc.
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */

#ifndef SkPerlinNoiseShader_DEFINED
#define SkPerlinNoiseShader_DEFINED

#include "SkShader.h"

class SK_API SkPerlinNoiseShader {
public:
    static sk_sp<SkShader> MakeFractalNoise(SkScalar baseFrequencyX, SkScalar baseFrequencyY,
                                            int numOctaves, SkScalar seed,
                                            const SkISize* tileSize = nullptr);
    static sk_sp<SkShader> MakeTurbulence(SkScalar baseFrequencyX, SkScalar baseFrequencyY,
                                          int numOctaves, SkScalar seed,
                                          const SkISize* tileSize = nullptr);
    static sk_sp<SkShader> MakeImprovedNoise(SkScalar baseFrequencyX, SkScalar baseFrequencyY,
                                             int numOctaves, SkScalar z);

    SK_DECLARE_FLATTENABLE_REGISTRAR_GROUP()

private:
    SkPerlinNoiseShader() = delete;
};

#endif