| /* |
| * Copyright (C) 2011-2019 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 |
| |
| #include <WebCore/IntRect.h> |
| #include <wtf/Noncopyable.h> |
| |
| #if USE(CAIRO) |
| #include <WebCore/BackingStoreBackendCairo.h> |
| #elif USE(DIRECT2D) |
| #include <WebCore/BackingStoreBackendDirect2D.h> |
| #endif |
| |
| #if USE(DIRECT2D) |
| interface ID2D1RenderTarget; |
| interface ID3D11Device1; |
| interface ID3D11DeviceContext1; |
| interface ID3D11Texture2D; |
| #endif |
| |
| namespace WebKit { |
| |
| class ShareableBitmap; |
| class UpdateInfo; |
| class WebPageProxy; |
| |
| class BackingStore { |
| WTF_MAKE_FAST_ALLOCATED; |
| WTF_MAKE_NONCOPYABLE(BackingStore); |
| |
| public: |
| BackingStore(const WebCore::IntSize&, float deviceScaleFactor, WebPageProxy&); |
| ~BackingStore(); |
| |
| const WebCore::IntSize& size() const { return m_size; } |
| float deviceScaleFactor() const { return m_deviceScaleFactor; } |
| |
| #if USE(CAIRO) |
| typedef cairo_t* PlatformGraphicsContext; |
| #elif USE(DIRECT2D) |
| struct DXConnections { |
| ID3D11DeviceContext1* immediateContext { nullptr }; |
| ID3D11Texture2D* backBuffer { nullptr }; |
| }; |
| typedef DXConnections PlatformGraphicsContext; |
| #endif |
| |
| void paint(PlatformGraphicsContext, const WebCore::IntRect&); |
| void incorporateUpdate(const UpdateInfo&); |
| |
| private: |
| void incorporateUpdate(ShareableBitmap*, const UpdateInfo&); |
| void scroll(const WebCore::IntRect& scrollRect, const WebCore::IntSize& scrollOffset); |
| |
| #if USE(CAIRO) |
| std::unique_ptr<WebCore::BackingStoreBackendCairo> createBackend(); |
| #elif USE(DIRECT2D) |
| std::unique_ptr<WebCore::BackingStoreBackendDirect2D> createBackend(); |
| #endif |
| |
| WebCore::IntSize m_size; |
| float m_deviceScaleFactor; |
| WebPageProxy& m_webPageProxy; |
| #if USE(CAIRO) |
| std::unique_ptr<WebCore::BackingStoreBackendCairo> m_backend; |
| #elif USE(DIRECT2D) |
| std::unique_ptr<WebCore::BackingStoreBackendDirect2D> m_backend; |
| #endif |
| }; |
| |
| } // namespace WebKit |