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https://github.com/LadybirdBrowser/ladybird.git
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bfd354492e
With this change, we now have ~1200 CellAllocators across both LibJS and LibWeb in a normal WebContent instance. This gives us a minimum heap size of 4.7 MiB in the scenario where we only have one cell allocated per type. Of course, in practice there will be many more of each type, so the effective overhead is quite a bit smaller than that in practice. I left a few types unconverted to this mechanism because I got tired of doing this. :^)
62 lines
1.9 KiB
C++
62 lines
1.9 KiB
C++
/*
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* Copyright (c) 2023, Luke Wilde <lukew@serenityos.org>
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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 <LibWeb/Bindings/AudioContextPrototype.h>
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#include <LibWeb/HighResolutionTime/DOMHighResTimeStamp.h>
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#include <LibWeb/WebAudio/BaseAudioContext.h>
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namespace Web::WebAudio {
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struct AudioContextOptions {
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Bindings::AudioContextLatencyCategory latency_hint = Bindings::AudioContextLatencyCategory::Interactive;
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Optional<float> sample_rate;
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};
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struct AudioTimestamp {
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double context_time { 0 };
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double performance_time { 0 };
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};
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// https://webaudio.github.io/web-audio-api/#AudioContext
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class AudioContext final : public BaseAudioContext {
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WEB_PLATFORM_OBJECT(AudioContext, BaseAudioContext);
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JS_DECLARE_ALLOCATOR(AudioContext);
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public:
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static WebIDL::ExceptionOr<JS::NonnullGCPtr<AudioContext>> construct_impl(JS::Realm&, AudioContextOptions const& context_options = {});
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virtual ~AudioContext() override;
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double base_latency() const { return m_base_latency; }
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double output_latency() const { return m_output_latency; }
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AudioTimestamp get_output_timestamp();
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WebIDL::ExceptionOr<JS::NonnullGCPtr<JS::Promise>> resume();
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WebIDL::ExceptionOr<JS::NonnullGCPtr<JS::Promise>> suspend();
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WebIDL::ExceptionOr<JS::NonnullGCPtr<JS::Promise>> close();
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private:
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explicit AudioContext(JS::Realm&, AudioContextOptions const& context_options);
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virtual void initialize(JS::Realm&) override;
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virtual void visit_edges(Cell::Visitor&) override;
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double m_base_latency { 0 };
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double m_output_latency { 0 };
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bool m_allowed_to_start = true;
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Vector<JS::NonnullGCPtr<WebIDL::Promise>> m_pending_promises;
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Vector<JS::NonnullGCPtr<WebIDL::Promise>> m_pending_resume_promises;
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bool m_suspended_by_user = false;
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HTML::UniqueTaskSource m_media_element_event_task_source {};
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void queue_a_media_element_task(JS::SafeFunction<void()> steps);
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bool start_rendering_audio_graph();
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};
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}
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