5e1ddb1086
Reason for revert: chrome changes have landed Original issue's description: > Revert of change all factories to return their base-class (patchset #1 id:1 of https://codereview.chromium.org/1535353002/ ) > > Reason for revert: > need to update some chrome/blink call-sites > > Original issue's description: > > change all factories to return their base-class > > > > will watch DEPS roll to see if there are chrome sites needing updates > > > > BUG=skia: > > GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1535353002 > > > > TBR= > > > > Committed: https://skia.googlesource.com/skia/+/d63f60a36327e9580861205ebb35cade8c49bd34 > > TBR= > NOPRESUBMIT=true > NOTREECHECKS=true > NOTRY=true > BUG=skia: > > Committed: https://skia.googlesource.com/skia/+/2d6ba6690f8951e152d8e793191b14afd52f5506 TBR= NOPRESUBMIT=true NOTREECHECKS=true NOTRY=true BUG=skia: Review URL: https://codereview.chromium.org/1533373002
91 lines
2.4 KiB
C++
91 lines
2.4 KiB
C++
/*
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* Copyright 2008 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 SkBlurDrawLooper_DEFINED
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#define SkBlurDrawLooper_DEFINED
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#include "SkDrawLooper.h"
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#include "SkColor.h"
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class SkMaskFilter;
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class SkColorFilter;
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/** \class SkBlurDrawLooper
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This class draws a shadow of the object (possibly offset), and then draws
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the original object in its original position.
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should there be an option to just draw the shadow/blur layer? webkit?
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*/
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class SK_API SkBlurDrawLooper : public SkDrawLooper {
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public:
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enum BlurFlags {
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kNone_BlurFlag = 0x00,
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/**
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The blur layer's dx/dy/radius aren't affected by the canvas
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transform.
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*/
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kIgnoreTransform_BlurFlag = 0x01,
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kOverrideColor_BlurFlag = 0x02,
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kHighQuality_BlurFlag = 0x04,
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/** mask for all blur flags */
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kAll_BlurFlag = 0x07
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};
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static SkDrawLooper* Create(SkColor color, SkScalar sigma, SkScalar dx, SkScalar dy,
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uint32_t flags = kNone_BlurFlag) {
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return new SkBlurDrawLooper(color, sigma, dx, dy, flags);
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}
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virtual ~SkBlurDrawLooper();
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SkDrawLooper::Context* createContext(SkCanvas*, void* storage) const override;
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size_t contextSize() const override { return sizeof(BlurDrawLooperContext); }
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SK_TO_STRING_OVERRIDE()
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SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkBlurDrawLooper)
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protected:
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SkBlurDrawLooper(SkColor color, SkScalar sigma, SkScalar dx, SkScalar dy,
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uint32_t flags);
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void flatten(SkWriteBuffer&) const override;
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bool asABlurShadow(BlurShadowRec*) const override;
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private:
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SkMaskFilter* fBlur;
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SkColorFilter* fColorFilter;
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SkScalar fDx, fDy, fSigma;
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SkColor fBlurColor;
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uint32_t fBlurFlags;
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enum State {
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kBeforeEdge,
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kAfterEdge,
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kDone
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};
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class BlurDrawLooperContext : public SkDrawLooper::Context {
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public:
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explicit BlurDrawLooperContext(const SkBlurDrawLooper* looper);
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bool next(SkCanvas* canvas, SkPaint* paint) override;
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private:
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const SkBlurDrawLooper* fLooper;
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State fState;
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};
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void init(SkScalar sigma, SkScalar dx, SkScalar dy, SkColor color, uint32_t flags);
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void initEffects();
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typedef SkDrawLooper INHERITED;
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};
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#endif
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