/* * Copyright (C) 2016 Igalia S.L. * * 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 COMPUTER, INC. ``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 COMPUTER, INC. OR * 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 <wtf/Noncopyable.h> typedef struct _cairo cairo_t; #if USE(GTK4) typedef struct _GdkSnapshot GdkSnapshot; typedef GdkSnapshot GtkSnapshot; #endif namespace WebCore { class IntRect; } namespace WebKit { class LayerTreeContext; class WebPageProxy; class AcceleratedBackingStore { WTF_MAKE_NONCOPYABLE(AcceleratedBackingStore); WTF_MAKE_FAST_ALLOCATED; public: static bool checkRequirements(); static std::unique_ptr<AcceleratedBackingStore> create(WebPageProxy&); virtual ~AcceleratedBackingStore() = default; virtual void update(const LayerTreeContext&) { } #if USE(GTK4) virtual void snapshot(GtkSnapshot*) = 0; #else virtual bool paint(cairo_t*, const WebCore::IntRect&) = 0; #endif virtual void realize() { }; virtual void unrealize() { }; virtual bool makeContextCurrent() { return false; } virtual int renderHostFileDescriptor() { return -1; } protected: AcceleratedBackingStore(WebPageProxy&); WebPageProxy& m_webPage; }; } // namespace WebKit