/* * Copyright (C) 2019 Apple Inc. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF * THE POSSIBILITY OF SUCH DAMAGE. */ #pragma once #if USE(DIRECT2D) #include "BackingStoreBackendDirect2D.h" #include <pal/HysteresisActivity.h> interface ID2D1BitmapBrush; interface IDXGISurface1; namespace WebCore { class IntSize; class BackingStoreBackendDirect2DImpl final : public BackingStoreBackendDirect2D { public: WEBCORE_EXPORT BackingStoreBackendDirect2DImpl(const IntSize&, float deviceScaleFactor, ID3D11Device1*); virtual ~BackingStoreBackendDirect2DImpl(); private: void scroll(const IntRect&, const IntSize&) override; ID2D1BitmapBrush* bitmapBrush() override; IntSize m_scrollSurfaceSize; COMPtr<ID2D1Bitmap> m_scrollSurface; COMPtr<IDXGISurface1> m_dxScrollSurface; COMPtr<ID2D1BitmapBrush> m_bitmapBrush; PAL::HysteresisActivity m_scrolledHysteresis; }; } // namespace WebCore #endif // USE(DIRECT2D)