/*

 * Copyright 2017 Google Inc.

 *

 * Use of this source code is governed by a BSD-style license that can be

 * found in the LICENSE file.

 */

#ifndef SkClipStackDevice_DEFINED

#define SkClipStackDevice_DEFINED

#include "src/core/SkClipStack.h"

#include "src/core/SkDevice.h"

class SkClipStackDevice : public SkBaseDevice {

public:

    SkClipStackDevice(const SkImageInfo& info, const SkSurfaceProps& props)

        : SkBaseDevice(info, props)

        , fClipStack(fStorage, sizeof(fStorage))

    {}

    SkClipStack& cs() { return fClipStack; }

    const SkClipStack& cs() const { return fClipStack; }

protected:

    void onSave() override;

    void onRestore() override;

    void onClipRect(const SkRect& rect, SkClipOp, bool aa) override;

    void onClipRRect(const SkRRect& rrect, SkClipOp, bool aa) override;

    void onClipPath(const SkPath& path, SkClipOp, bool aa) override;

    void onClipShader(sk_sp<SkShader>) override;

    void onClipRegion(const SkRegion& deviceRgn, SkClipOp) override;

    void onReplaceClip(const SkIRect& rect) override;

    bool onClipIsAA() const override;

    bool onClipIsWideOpen() const override;

    void onAsRgnClip(SkRegion*) const override;

    ClipType onGetClipType() const override;

    SkIRect onDevClipBounds() const override;

private:

    enum {

        kPreallocCount = 16 // empirically determined, adjust as needed to reduce mallocs

    };

    intptr_t fStorage[kPreallocCount * sizeof(SkClipStack::Element) / sizeof(intptr_t)];

    SkClipStack fClipStack;

    using INHERITED = SkBaseDevice;

};

#endif