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LibWeb/WebAudio: Implement AudioNode::connect()

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Sets up the basic infrastructure for the audio node graph and
implements the AudioNode `connect()` method with its related overides.
AudioNodes store vectors of AudioNodeConnections and
AudioParamConnections to represent links between nodes.
This commit is contained in:
Ben Eidson 2025-05-20 21:15:15 -04:00 • committed by Andrew Kaster
commit 15aa7dce29
Notes: github-actions[bot] 2025-06-17 22:57:18 +00:00
2 changed files with 54 additions and 2 deletions
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22
Libraries/LibWeb/WebAudio/AudioNode.h
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@ -1,5 +1,6 @@
/*
* Copyright (c) 2024, Shannon Booth <shannon@serenityos.org>
* Copyright (c) 2025, Ben Eidson <b.e.eidson@gmail.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
@ -28,6 +29,21 @@ struct AudioNodeDefaultOptions {
Bindings::ChannelInterpretation channel_interpretation;
};
struct AudioNodeConnection {
GC::Ref<AudioNode> destination_node;
WebIDL::UnsignedLong output;
WebIDL::UnsignedLong input;
bool operator==(AudioNodeConnection const& other) const = default;
};
struct AudioParamConnection {
GC::Ref<AudioParam> destination_param;
WebIDL::UnsignedLong output;
bool operator==(AudioParamConnection const& other) const = default;
};
// https://webaudio.github.io/web-audio-api/#AudioNode
class AudioNode : public DOM::EventTarget {
WEB_PLATFORM_OBJECT(AudioNode, DOM::EventTarget);
@ -81,6 +97,12 @@ private:
WebIDL::UnsignedLong m_channel_count { 2 };
Bindings::ChannelCountMode m_channel_count_mode { Bindings::ChannelCountMode::Max };
Bindings::ChannelInterpretation m_channel_interpretation { Bindings::ChannelInterpretation::Speakers };
// Connections from other AudioNode outputs into this node's inputs.
Vector<AudioNodeConnection> m_input_connections;
// Connections from this node's outputs into other AudioNode inputs.
Vector<AudioNodeConnection> m_output_connections;
// Connections from this node's outputs into AudioParams.
Vector<AudioParamConnection> m_param_connections;
};
}