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https://github.com/LadybirdBrowser/ladybird.git
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a6dfc74e93
Before this change, we were going through the chain of base classes for each IDL interface object and having them set the prototype to their prototype. Instead of doing that, reorder things so that we set the right prototype immediately in Foo::initialize(), and then don't bother in all the base class overrides. This knocks off a ~1% profile item on Speedometer 3.
111 lines
4.7 KiB
C++
111 lines
4.7 KiB
C++
/*
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* Copyright (c) 2024, Shannon Booth <shannon@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibWeb/Bindings/Intrinsics.h>
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#include <LibWeb/HTML/EventNames.h>
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#include <LibWeb/HTML/Window.h>
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#include <LibWeb/WebAudio/AudioDestinationNode.h>
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#include <LibWeb/WebAudio/OfflineAudioContext.h>
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namespace Web::WebAudio {
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GC_DEFINE_ALLOCATOR(OfflineAudioContext);
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// https://webaudio.github.io/web-audio-api/#dom-offlineaudiocontext-offlineaudiocontext
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WebIDL::ExceptionOr<GC::Ref<OfflineAudioContext>> OfflineAudioContext::construct_impl(JS::Realm& realm, OfflineAudioContextOptions const& context_options)
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{
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// AD-HOC: This spec text is currently only mentioned in the constructor overload that takes separate arguments,
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// but these parameters should be validated for both constructors.
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// A NotSupportedError exception MUST be thrown if any of the arguments is negative, zero, or outside its nominal range.
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TRY(verify_audio_options_inside_nominal_range(realm, context_options.number_of_channels, context_options.length, context_options.sample_rate));
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// Let c be a new OfflineAudioContext object. Initialize c as follows:
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auto c = realm.create<OfflineAudioContext>(realm, context_options.length, context_options.sample_rate);
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// 1. Set the [[control thread state]] for c to "suspended".
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c->set_control_state(Bindings::AudioContextState::Suspended);
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// 2. Set the [[rendering thread state]] for c to "suspended".
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c->set_rendering_state(Bindings::AudioContextState::Suspended);
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// FIXME: 3. Determine the [[render quantum size]] for this OfflineAudioContext, based on the value of the renderSizeHint:
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// 4. Construct an AudioDestinationNode with its channelCount set to contextOptions.numberOfChannels.
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c->m_destination = TRY(AudioDestinationNode::construct_impl(realm, c, context_options.number_of_channels));
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// FIXME: 5. Let messageChannel be a new MessageChannel.
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// FIXME: 6. Let controlSidePort be the value of messageChannel’s port1 attribute.
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// FIXME: 7. Let renderingSidePort be the value of messageChannel’s port2 attribute.
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// FIXME: 8. Let serializedRenderingSidePort be the result of StructuredSerializeWithTransfer(renderingSidePort, « renderingSidePort »).
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// FIXME: 9. Set this audioWorklet's port to controlSidePort.
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// FIXME: 10. Queue a control message to set the MessagePort on the AudioContextGlobalScope, with serializedRenderingSidePort.
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return c;
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}
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// https://webaudio.github.io/web-audio-api/#dom-offlineaudiocontext-offlineaudiocontext-numberofchannels-length-samplerate
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WebIDL::ExceptionOr<GC::Ref<OfflineAudioContext>> OfflineAudioContext::construct_impl(JS::Realm& realm,
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WebIDL::UnsignedLong number_of_channels, WebIDL::UnsignedLong length, float sample_rate)
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{
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return construct_impl(realm, { number_of_channels, length, sample_rate });
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}
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OfflineAudioContext::~OfflineAudioContext() = default;
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// https://webaudio.github.io/web-audio-api/#dom-offlineaudiocontext-startrendering
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WebIDL::ExceptionOr<GC::Ref<WebIDL::Promise>> OfflineAudioContext::start_rendering()
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{
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return WebIDL::NotSupportedError::create(realm(), "FIXME: Implement OfflineAudioContext::start_rendering"_string);
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}
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WebIDL::ExceptionOr<GC::Ref<WebIDL::Promise>> OfflineAudioContext::resume()
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{
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return WebIDL::NotSupportedError::create(realm(), "FIXME: Implement OfflineAudioContext::resume"_string);
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}
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WebIDL::ExceptionOr<GC::Ref<WebIDL::Promise>> OfflineAudioContext::suspend(double suspend_time)
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{
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(void)suspend_time;
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return WebIDL::NotSupportedError::create(realm(), "FIXME: Implement OfflineAudioContext::suspend"_string);
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}
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// https://webaudio.github.io/web-audio-api/#dom-offlineaudiocontext-length
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WebIDL::UnsignedLong OfflineAudioContext::length() const
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{
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// The size of the buffer in sample-frames. This is the same as the value of the length parameter for the constructor.
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return m_length;
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}
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// https://webaudio.github.io/web-audio-api/#dom-offlineaudiocontext-oncomplete
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GC::Ptr<WebIDL::CallbackType> OfflineAudioContext::oncomplete()
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{
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return event_handler_attribute(HTML::EventNames::complete);
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}
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// https://webaudio.github.io/web-audio-api/#dom-offlineaudiocontext-oncomplete
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void OfflineAudioContext::set_oncomplete(GC::Ptr<WebIDL::CallbackType> value)
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{
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set_event_handler_attribute(HTML::EventNames::complete, value);
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}
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OfflineAudioContext::OfflineAudioContext(JS::Realm& realm, WebIDL::UnsignedLong length, float sample_rate)
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: BaseAudioContext(realm, sample_rate)
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, m_length(length)
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{
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}
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void OfflineAudioContext::initialize(JS::Realm& realm)
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{
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WEB_SET_PROTOTYPE_FOR_INTERFACE(OfflineAudioContext);
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Base::initialize(realm);
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}
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void OfflineAudioContext::visit_edges(Cell::Visitor& visitor)
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{
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Base::visit_edges(visitor);
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}
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}
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