feat(4g): Compatible with ec20 and ec200

huangcm

2024-12-18 9d29be7f7249789d6ffd0440067187a9f040c2cd

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/*
 * 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 SkDisplacementMapEffect_DEFINED
#define SkDisplacementMapEffect_DEFINED
 
#include "SkImageFilter.h"
 
class SK_API SkDisplacementMapEffect : public SkImageFilter {
public:
    enum ChannelSelectorType {
        kUnknown_ChannelSelectorType,
        kR_ChannelSelectorType,
        kG_ChannelSelectorType,
        kB_ChannelSelectorType,
        kA_ChannelSelectorType,
 
        kLast_ChannelSelectorType = kA_ChannelSelectorType
    };
 
    ~SkDisplacementMapEffect() override;
 
    static sk_sp<SkImageFilter> Make(ChannelSelectorType xChannelSelector,
                                     ChannelSelectorType yChannelSelector,
                                     SkScalar scale,
                                     sk_sp<SkImageFilter> displacement,
                                     sk_sp<SkImageFilter> color,
                                     const CropRect* cropRect = nullptr);
 
    SkRect computeFastBounds(const SkRect& src) const override;
 
    virtual SkIRect onFilterBounds(const SkIRect& src, const SkMatrix& ctm,
                                   MapDirection, const SkIRect* inputRect) const override;
    sk_sp<SkImageFilter> onMakeColorSpace(SkColorSpaceXformer*) const override;
    SkIRect onFilterNodeBounds(const SkIRect&, const SkMatrix& ctm,
                               MapDirection, const SkIRect* inputRect) const override;
 
protected:
    sk_sp<SkSpecialImage> onFilterImage(SkSpecialImage* source, const Context&,
                                        SkIPoint* offset) const override;
 
    SkDisplacementMapEffect(ChannelSelectorType xChannelSelector,
                            ChannelSelectorType yChannelSelector,
                            SkScalar scale, sk_sp<SkImageFilter> inputs[2],
                            const CropRect* cropRect);
    void flatten(SkWriteBuffer&) const override;
 
private:
    SK_FLATTENABLE_HOOKS(SkDisplacementMapEffect)
 
    ChannelSelectorType fXChannelSelector;
    ChannelSelectorType fYChannelSelector;
    SkScalar fScale;
    typedef SkImageFilter INHERITED;
    const SkImageFilter* getDisplacementInput() const { return getInput(0); }
    const SkImageFilter* getColorInput() const { return getInput(1); }
};
 
#endif