/* * Copyright (C) 2018 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 <wtf/HashSet.h> #if PLATFORM(MAC) #include <CoreGraphics/CGDisplayConfiguration.h> #endif namespace WebCore { const unsigned MaxContexts = 16; class GraphicsContextGLOpenGL; class GraphicsContextGLOpenGLManager { friend NeverDestroyed<GraphicsContextGLOpenGLManager>; public: static GraphicsContextGLOpenGLManager& sharedManager(); void addContext(GraphicsContextGLOpenGL*); void removeContext(GraphicsContextGLOpenGL*); void recycleContextIfNecessary(); bool hasTooManyContexts() const { return m_contexts.size() >= MaxContexts; } #if PLATFORM(MAC) WEBCORE_EXPORT static void displayWasReconfigured(CGDirectDisplayID, CGDisplayChangeSummaryFlags, void*); #endif #if PLATFORM(COCOA) void displayWasReconfigured(); #endif private: GraphicsContextGLOpenGLManager() = default; Vector<GraphicsContextGLOpenGL*> m_contexts; }; }