/* * Copyright (C) 2018 Metrological Group B.V. * Copyright (C) 2018 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 THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT * HOLDER 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 <cstdint> #include <wtf/HashSet.h> #include <wtf/Lock.h> #include <wtf/RefPtr.h> #include <wtf/ThreadSafeRefCounted.h> namespace Nicosia { class CompositionLayer; class Scene : public ThreadSafeRefCounted<Scene> { public: static Ref<Scene> create() { return adoptRef(*new Scene); } ~Scene(); struct State { State(); ~State(); uint32_t id { 0 }; // FIXME: This is needed for a ThreadedCompositor oddity that might not even be // necessary anymore. It that has to be checked and ideally removed. // https://bugs.webkit.org/show_bug.cgi?id=188839 bool platformLayerUpdated { false }; HashSet<RefPtr<Nicosia::CompositionLayer>> layers; RefPtr<Nicosia::CompositionLayer> rootLayer; }; template<typename F> void accessState(const F& functor) { LockHolder locker(m_scene.lock); functor(m_scene.state); } private: Scene(); struct { Lock lock; State state; } m_scene; }; } // namespace Nicosia