SkComposeColorFilter.h

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/*

 * Copyright 2023 Google LLC

 * Use of this source code is governed by a BSD-style license that can be

 * found in the LICENSE file.

*/

#ifndef SkComposeColorFilter_DEFINED

#define SkComposeColorFilter_DEFINED

#include "include/core/SkColorFilter.h"

#include "include/core/SkFlattenable.h"

#include "include/core/SkRefCnt.h"

#include "src/effects/colorfilters/SkColorFilterBase.h"

class SkReadBuffer;

class SkWriteBuffer;

struct SkStageRec;

class SkComposeColorFilter final : public SkColorFilterBase {

public:

    bool onIsAlphaUnchanged() const override;

    bool appendStages(const SkStageRec& rec, bool shaderIsOpaque) const override;

    SkColorFilterBase::Type type() const override { return SkColorFilterBase::Type::kCompose; }

    sk_sp<SkColorFilterBase> outer() const { return fOuter; }

    sk_sp<SkColorFilterBase> inner() const { return fInner; }

protected:

    void flatten(SkWriteBuffer& buffer) const override;

private:

    friend void ::SkRegisterComposeColorFilterFlattenable();

    SK_FLATTENABLE_HOOKS(SkComposeColorFilter)

    SkComposeColorFilter(sk_sp<SkColorFilter> outer, sk_sp<SkColorFilter> inner);

    sk_sp<SkColorFilterBase> fOuter;

    sk_sp<SkColorFilterBase> fInner;

    friend class SkColorFilter;

    using INHERITED = SkColorFilter;

};

#endif