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 2012 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 SkBlendImageFilter_DEFINED
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#define SkBlendImageFilter_DEFINED
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#include "SkImageFilter.h"
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#include "SkBitmap.h"
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class SK_API SkBlendImageFilter : public SkImageFilter {
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public:
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enum Mode {
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kNormal_Mode,
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kMultiply_Mode,
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kScreen_Mode,
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kDarken_Mode,
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kLighten_Mode,
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};
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SkBlendImageFilter(Mode mode, SkImageFilter* background, SkImageFilter* foreground = NULL);
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~SkBlendImageFilter();
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SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkBlendImageFilter)
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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 SkBlendImageFilter(SkFlattenableReadBuffer& buffer);
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virtual void flatten(SkFlattenableWriteBuffer&) const SK_OVERRIDE;
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private:
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Mode fMode;
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typedef SkImageFilter INHERITED;
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SkImageFilter* getBackgroundInput() { return getInput(0); }
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SkImageFilter* getForegroundInput() { return getInput(1); }
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};
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#endif
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