зеркало из https://github.com/mozilla/moz-skia.git
52 строки
1.5 KiB
C++
52 строки
1.5 KiB
C++
/*
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* Copyright 2013 The Android Open Source Project
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#ifndef SkXfermodeImageFilter_DEFINED
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#define SkXfermodeImageFilter_DEFINED
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#include "SkImageFilter.h"
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class SkBitmap;
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class SkXfermode;
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class SK_API SkXfermodeImageFilter : public SkImageFilter {
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/**
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* This filter takes an xfermode, and uses it to composite the foreground
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* over the background. If foreground or background is NULL, the input
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* bitmap (src) is used instead.
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*/
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public:
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SkXfermodeImageFilter(SkXfermode* mode, SkImageFilter* background,
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SkImageFilter* foreground = NULL);
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virtual ~SkXfermodeImageFilter();
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SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkXfermodeImageFilter)
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virtual bool onFilterImage(Proxy* proxy,
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const SkBitmap& src,
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const SkMatrix& ctm,
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SkBitmap* dst,
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SkIPoint* offset) SK_OVERRIDE;
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#if SK_SUPPORT_GPU
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virtual bool canFilterImageGPU() const SK_OVERRIDE { return true; }
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virtual bool filterImageGPU(Proxy* proxy, const SkBitmap& src, SkBitmap* result,
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SkIPoint* offset) SK_OVERRIDE;
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#endif
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protected:
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explicit SkXfermodeImageFilter(SkFlattenableReadBuffer& buffer);
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virtual void flatten(SkFlattenableWriteBuffer&) const SK_OVERRIDE;
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private:
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SkXfermode* fMode;
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typedef SkImageFilter INHERITED;
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};
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#endif
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