mirror of
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.
85 lines
3.3 KiB
C++
85 lines
3.3 KiB
C++
/*
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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 <LibWeb/Bindings/Intrinsics.h>
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#include <LibWeb/WebAudio/AudioNode.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/StereoPannerNode.h>
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namespace Web::WebAudio {
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GC_DEFINE_ALLOCATOR(StereoPannerNode);
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StereoPannerNode::~StereoPannerNode() = default;
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WebIDL::ExceptionOr<GC::Ref<StereoPannerNode>> StereoPannerNode::create(JS::Realm& realm, GC::Ref<BaseAudioContext> context, StereoPannerOptions 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-stereopannernode-stereopannernode
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WebIDL::ExceptionOr<GC::Ref<StereoPannerNode>> StereoPannerNode::construct_impl(JS::Realm& realm, GC::Ref<BaseAudioContext> context, StereoPannerOptions const& options)
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{
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// Create the node and allocate memory
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auto node = realm.create<StereoPannerNode>(realm, context, options);
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// Default options for channel count and interpretation
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// https://webaudio.github.io/web-audio-api/#stereopannernode
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AudioNodeDefaultOptions default_options;
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default_options.channel_count_mode = Bindings::ChannelCountMode::ClampedMax;
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default_options.channel_interpretation = Bindings::ChannelInterpretation::Speakers;
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default_options.channel_count = 2;
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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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// https://webaudio.github.io/web-audio-api/#dom-audionode-channelcountmode
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WebIDL::ExceptionOr<void> StereoPannerNode::set_channel_count_mode(Bindings::ChannelCountMode mode)
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{
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// https://webaudio.github.io/web-audio-api/#audionode-channelcountmode-constraints
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// The channel count mode cannot be set to "max", and a NotSupportedError exception MUST be thrown for any attempt to set it to "max".
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if (mode == Bindings::ChannelCountMode::Max) {
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return WebIDL::NotSupportedError::create(realm(), "StereoPannerNode does not support 'max' as channelCountMode."_string);
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}
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// If the mode is valid, call the base class implementation
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return AudioNode::set_channel_count_mode(mode);
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}
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// https://webaudio.github.io/web-audio-api/#dom-audionode-channelcount
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WebIDL::ExceptionOr<void> StereoPannerNode::set_channel_count(WebIDL::UnsignedLong channel_count)
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{
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// https://webaudio.github.io/web-audio-api/#audionode-channelcount-constraints
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// The channel count cannot be greater than two, and a NotSupportedError exception MUST be thrown for any attempt to change it to a value greater than two.
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if (channel_count > 2) {
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return WebIDL::NotSupportedError::create(realm(), "StereoPannerNode does not support channel count greater than 2"_string);
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}
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return AudioNode::set_channel_count(channel_count);
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}
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StereoPannerNode::StereoPannerNode(JS::Realm& realm, GC::Ref<BaseAudioContext> context, StereoPannerOptions const& options)
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: AudioNode(realm, context)
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, m_pan(AudioParam::create(realm, context, options.pan, -1, 1, Bindings::AutomationRate::ARate))
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{
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}
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void StereoPannerNode::initialize(JS::Realm& realm)
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{
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WEB_SET_PROTOTYPE_FOR_INTERFACE(StereoPannerNode);
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Base::initialize(realm);
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}
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void StereoPannerNode::visit_edges(Cell::Visitor& visitor)
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{
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Base::visit_edges(visitor);
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visitor.visit(m_pan);
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}
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}
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