4f0379444d
TBR=bsalomon@google.com GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1674673002 Review URL: https://codereview.chromium.org/1674673002
48 lines
1.4 KiB
C++
48 lines
1.4 KiB
C++
/*
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* Copyright 2007 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 SkPixelXorXfermode_DEFINED
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#define SkPixelXorXfermode_DEFINED
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#include "SkXfermode.h"
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/** SkPixelXorXfermode implements a simple pixel xor (op ^ src ^ dst).
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This transformation does not follow premultiplied conventions, therefore
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this proc *always* returns an opaque color (alpha == 255). Thus it is
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not really usefull for operating on blended colors.
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*/
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class SK_API SkPixelXorXfermode : public SkXfermode {
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public:
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static SkXfermode* Create(SkColor opColor) {
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return new SkPixelXorXfermode(opColor);
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}
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#if SK_SUPPORT_GPU
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const GrFragmentProcessor* getFragmentProcessorForImageFilter(
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const GrFragmentProcessor* dst) const override;
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GrXPFactory* asXPFactory() const override;
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#endif
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SK_TO_STRING_OVERRIDE()
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SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkPixelXorXfermode)
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protected:
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void flatten(SkWriteBuffer&) const override;
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SkPMColor xferColor(SkPMColor src, SkPMColor dst) const override;
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private:
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explicit SkPixelXorXfermode(SkColor opColor) {
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fOpColor = SkPreMultiplyColor(opColor | 0xFF000000);
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}
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SkPMColor fOpColor;
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typedef SkXfermode INHERITED;
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};
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#endif
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