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ladybird/Libraries/LibWeb/WebAudio/DelayNode.cpp
Andreas Kling a6dfc74e93 LibWeb: Only set prototype once for object with IDL interface
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.
2025-04-20 18:43:11 +02:00

64 lines
2.3 KiB
C++

/*
* Copyright (c) 2025, Tim Ledbetter <tim.ledbetter@ladybird.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibWeb/Bindings/DelayNodePrototype.h>
#include <LibWeb/Bindings/Intrinsics.h>
#include <LibWeb/WebAudio/BaseAudioContext.h>
#include <LibWeb/WebAudio/DelayNode.h>
namespace Web::WebAudio {
GC_DEFINE_ALLOCATOR(DelayNode);
DelayNode::DelayNode(JS::Realm& realm, GC::Ref<BaseAudioContext> context, DelayOptions const& options)
: AudioNode(realm, context)
, m_delay_time(AudioParam::create(realm, context, options.delay_time, 0, options.max_delay_time, Bindings::AutomationRate::ARate))
{
}
DelayNode::~DelayNode() = default;
WebIDL::ExceptionOr<GC::Ref<DelayNode>> DelayNode::create(JS::Realm& realm, GC::Ref<BaseAudioContext> context, DelayOptions const& options)
{
return construct_impl(realm, context, options);
}
WebIDL::ExceptionOr<GC::Ref<DelayNode>> DelayNode::construct_impl(JS::Realm& realm, GC::Ref<BaseAudioContext> context, DelayOptions const& options)
{
// https://webaudio.github.io/web-audio-api/#dom-delayoptions-maxdelaytime
// If specified, this value MUST be greater than zero and less than three minutes or a NotSupportedError exception MUST be thrown.
static constexpr double maximum_delay_time_seconds = 180;
if (options.max_delay_time <= 0 || options.max_delay_time >= maximum_delay_time_seconds || isnan(options.max_delay_time))
return WebIDL::NotSupportedError::create(realm, "Max delay time must be between 0 and 180 seconds exclusive"_string);
auto node = realm.create<DelayNode>(realm, context, options);
// Default options for channel count and interpretation
// https://webaudio.github.io/web-audio-api/#DelayNode
AudioNodeDefaultOptions default_options;
default_options.channel_count = 2;
default_options.channel_count_mode = Bindings::ChannelCountMode::Max;
default_options.channel_interpretation = Bindings::ChannelInterpretation::Speakers;
// FIXME: Set tail-time to yes
TRY(node->initialize_audio_node_options(options, default_options));
return node;
}
void DelayNode::initialize(JS::Realm& realm)
{
WEB_SET_PROTOTYPE_FOR_INTERFACE(DelayNode);
Base::initialize(realm);
}
void DelayNode::visit_edges(Cell::Visitor& visitor)
{
Base::visit_edges(visitor);
visitor.visit(m_delay_time);
}
}