bc33131837
Compositor presentation happened immediately whenever a frame or async scroll requested it, so compositor-local updates could run faster than thedisplay cadence and compete with bitmap ack back-pressure. Introduce VSyncScheduler as the compositor scheduling interface and add a TimerVSyncScheduler implementation that uses a single-shot timer at the context refresh rate on every platform. CompositorState now keeps a scheduler per display metadata bucket, marks contexts with pending frames, and drains matching pending contexts from that scheduler while preserving existing screenshot behavior and async-present ack flow.
30 lines
563 B
C++
30 lines
563 B
C++
/*
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* Copyright (c) 2026, the Ladybird developers.
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/Function.h>
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#include <AK/Optional.h>
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#include <AK/OwnPtr.h>
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namespace Compositor {
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class VSyncScheduler {
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AK_MAKE_NONCOPYABLE(VSyncScheduler);
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AK_MAKE_NONMOVABLE(VSyncScheduler);
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public:
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virtual ~VSyncScheduler() = default;
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virtual void schedule(double refresh_rate) = 0;
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protected:
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VSyncScheduler() = default;
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};
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OwnPtr<VSyncScheduler> create_vsync_scheduler(Optional<u64> display_id, Function<void()>&&);
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}
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