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5c57acf140
An exception is now thown if an `AudioNode` attempts to connect to an `AudioParam` from a different `BaseAudioContext`.
60 lines
1.9 KiB
C++
60 lines
1.9 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/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/GainNode.h>
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namespace Web::WebAudio {
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GC_DEFINE_ALLOCATOR(GainNode);
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GainNode::~GainNode() = default;
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WebIDL::ExceptionOr<GC::Ref<GainNode>> GainNode::create(JS::Realm& realm, GC::Ref<BaseAudioContext> context, GainOptions 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-gainnode-gainnode
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WebIDL::ExceptionOr<GC::Ref<GainNode>> GainNode::construct_impl(JS::Realm& realm, GC::Ref<BaseAudioContext> context, GainOptions const& options)
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{
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// Create the node and allocate memory
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auto node = realm.create<GainNode>(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/#GainNode
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AudioNodeDefaultOptions default_options;
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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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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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GainNode::GainNode(JS::Realm& realm, GC::Ref<BaseAudioContext> context, GainOptions const& options)
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: AudioNode(realm, context)
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, m_gain(AudioParam::create(realm, context, options.gain, NumericLimits<float>::lowest(), NumericLimits<float>::max(), Bindings::AutomationRate::ARate))
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{
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}
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void GainNode::initialize(JS::Realm& realm)
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{
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Base::initialize(realm);
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WEB_SET_PROTOTYPE_FOR_INTERFACE(GainNode);
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}
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void GainNode::visit_edges(Cell::Visitor& visitor)
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{
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Base::visit_edges(visitor);
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visitor.visit(m_gain);
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}
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}
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