/*
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* Copyright 2017 Google Inc.
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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 SkClipStackDevice_DEFINED
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#define SkClipStackDevice_DEFINED
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#include "SkClipStack.h"
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#include "SkDevice.h"
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class SkClipStackDevice : public SkBaseDevice {
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public:
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SkClipStackDevice(const SkImageInfo& info, const SkSurfaceProps& props)
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: SkBaseDevice(info, props)
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, fClipStack(fStorage, sizeof(fStorage))
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{}
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SkClipStack& cs() { return fClipStack; }
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const SkClipStack& cs() const { return fClipStack; }
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SkIRect devClipBounds() const;
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protected:
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void onSave() override;
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void onRestore() override;
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void onClipRect(const SkRect& rect, SkClipOp, bool aa) override;
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void onClipRRect(const SkRRect& rrect, SkClipOp, bool aa) override;
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void onClipPath(const SkPath& path, SkClipOp, bool aa) override;
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void onClipRegion(const SkRegion& deviceRgn, SkClipOp) override;
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void onSetDeviceClipRestriction(SkIRect* mutableClipRestriction) override;
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bool onClipIsAA() const override;
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void onAsRgnClip(SkRegion*) const override;
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ClipType onGetClipType() const override;
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private:
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enum {
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kPreallocCount = 16 // empirically determined, adjust as needed to reduce mallocs
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};
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intptr_t fStorage[kPreallocCount * sizeof(SkClipStack::Element) / sizeof(intptr_t)];
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SkClipStack fClipStack;
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typedef SkBaseDevice INHERITED;
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};
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#endif
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