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