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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.
98 lines
3.6 KiB
C++
98 lines
3.6 KiB
C++
/*
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* Copyright (c) 2024, Shannon Booth <shannon@serenityos.org>
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* Copyright (c) 2025, Tim Ledbetter <tim.ledbetter@ladybird.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <AK/Math.h>
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#include <LibWeb/Bindings/Intrinsics.h>
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#include <LibWeb/Bindings/OscillatorNodePrototype.h>
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#include <LibWeb/WebAudio/AudioParam.h>
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#include <LibWeb/WebAudio/BaseAudioContext.h>
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#include <LibWeb/WebAudio/OscillatorNode.h>
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namespace Web::WebAudio {
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GC_DEFINE_ALLOCATOR(OscillatorNode);
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OscillatorNode::~OscillatorNode() = default;
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WebIDL::ExceptionOr<GC::Ref<OscillatorNode>> OscillatorNode::create(JS::Realm& realm, GC::Ref<BaseAudioContext> context, OscillatorOptions const& options)
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{
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return construct_impl(realm, context, options);
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}
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// https://webaudio.github.io/web-audio-api/#dom-oscillatornode-oscillatornode
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WebIDL::ExceptionOr<GC::Ref<OscillatorNode>> OscillatorNode::construct_impl(JS::Realm& realm, GC::Ref<BaseAudioContext> context, OscillatorOptions const& options)
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{
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if (options.type == Bindings::OscillatorType::Custom && !options.periodic_wave)
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return WebIDL::InvalidStateError::create(realm, "Oscillator node type 'custom' requires PeriodicWave to be provided"_string);
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auto node = realm.create<OscillatorNode>(realm, context, options);
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if (options.type == Bindings::OscillatorType::Custom)
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node->set_periodic_wave(options.periodic_wave);
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// Default options for channel count and interpretation
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// https://webaudio.github.io/web-audio-api/#OscillatorNode
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AudioNodeDefaultOptions default_options;
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default_options.channel_count = 2;
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default_options.channel_count_mode = Bindings::ChannelCountMode::Max;
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default_options.channel_interpretation = Bindings::ChannelInterpretation::Speakers;
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// FIXME: Set tail-time to no
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TRY(node->initialize_audio_node_options(options, default_options));
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return node;
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}
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OscillatorNode::OscillatorNode(JS::Realm& realm, GC::Ref<BaseAudioContext> context, OscillatorOptions const& options)
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: AudioScheduledSourceNode(realm, context)
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, m_type(options.type)
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, m_frequency(AudioParam::create(realm, context, options.frequency, -context->nyquist_frequency(), context->nyquist_frequency(), Bindings::AutomationRate::ARate))
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, m_detune(AudioParam::create(realm, context, options.detune, -1200 * AK::log2(NumericLimits<float>::max()), 1200 * AK::log2(NumericLimits<float>::max()), Bindings::AutomationRate::ARate))
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{
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}
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// https://webaudio.github.io/web-audio-api/#dom-oscillatornode-type
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Bindings::OscillatorType OscillatorNode::type() const
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{
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return m_type;
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}
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// https://webaudio.github.io/web-audio-api/#dom-oscillatornode-type
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WebIDL::ExceptionOr<void> OscillatorNode::set_type(Bindings::OscillatorType type)
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{
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if (type == Bindings::OscillatorType::Custom && m_type != Bindings::OscillatorType::Custom)
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return WebIDL::InvalidStateError::create(realm(), "Oscillator node type cannot be changed to 'custom'"_string);
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// FIXME: An appropriate PeriodicWave should be set here based on the given type.
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set_periodic_wave(nullptr);
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m_type = type;
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return {};
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}
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// https://webaudio.github.io/web-audio-api/#dom-oscillatornode-setperiodicwave
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void OscillatorNode::set_periodic_wave(GC::Ptr<PeriodicWave> periodic_wave)
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{
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m_periodic_wave = periodic_wave;
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m_type = Bindings::OscillatorType::Custom;
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}
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void OscillatorNode::initialize(JS::Realm& realm)
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{
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WEB_SET_PROTOTYPE_FOR_INTERFACE(OscillatorNode);
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Base::initialize(realm);
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}
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void OscillatorNode::visit_edges(Cell::Visitor& visitor)
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{
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Base::visit_edges(visitor);
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visitor.visit(m_frequency);
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visitor.visit(m_detune);
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visitor.visit(m_periodic_wave);
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}
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}
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