Everywhere: Hoist the Libraries folder to the top-level

Author: https://github.com/trflynn89 Commit: 93712b24bf Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/2256 Reviewed-by: https://github.com/sideshowbarker
2025-09-02 15:46:33 +00:00 · 2024-11-09 12:25:08 -05:00 · 2024-11-09 12:25:08 -05:00 · 93712b24bf · 2024-11-10 11:51:52 +00:00
commit 93712b24bf
parent 950e819ee7
4547 changed files with 104 additions and 113 deletions
--- a/Libraries/LibWeb/WebAudio/BaseAudioContext.h
+++ b/Libraries/LibWeb/WebAudio/BaseAudioContext.h
@ -0,0 +1,91 @@
+/*
+ * Copyright (c) 2023, Luke Wilde <lukew@serenityos.org>
+ * Copyright (c) 2024, Shannon Booth <shannon@serenityos.org>
+ * Copyright (c) 2024, Jelle Raaijmakers <jelle@ladybird.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#pragma once
+
+#include <LibWeb/Bindings/BaseAudioContextPrototype.h>
+#include <LibWeb/DOM/EventTarget.h>
+#include <LibWeb/WebAudio/AudioListener.h>
+#include <LibWeb/WebAudio/BiquadFilterNode.h>
+#include <LibWeb/WebIDL/Types.h>
+
+namespace Web::WebAudio {
+
+class AudioDestinationNode;
+
+// https://webaudio.github.io/web-audio-api/#BaseAudioContext
+class BaseAudioContext : public DOM::EventTarget {
+    WEB_PLATFORM_OBJECT(BaseAudioContext, DOM::EventTarget);
+
+public:
+    virtual ~BaseAudioContext() override;
+
+    // https://webaudio.github.io/web-audio-api/#dom-baseaudiocontext-createbuffer-numberofchannels
+    // > An implementation MUST support at least 32 channels.
+    // Other browsers appear to only allow 32 channels - so let's limit ourselves to that too.
+    static constexpr WebIDL::UnsignedLong MAX_NUMBER_OF_CHANNELS { 32 };
+
+    // https://webaudio.github.io/web-audio-api/#dom-baseaudiocontext-createbuffer-samplerate
+    // > An implementation MUST support sample rates in at least the range 8000 to 96000.
+    // This doesn't seem consistent between browsers. We use what firefox accepts from testing BaseAudioContext.createAudioBuffer.
+    static constexpr float MIN_SAMPLE_RATE { 8000 };
+    static constexpr float MAX_SAMPLE_RATE { 192000 };
+
+    JS::NonnullGCPtr<AudioDestinationNode> destination() const { return m_destination; }
+    float sample_rate() const { return m_sample_rate; }
+    double current_time() const { return m_current_time; }
+    JS::NonnullGCPtr<AudioListener> listener() const { return m_listener; }
+    Bindings::AudioContextState state() const { return m_control_thread_state; }
+
+    // https://webaudio.github.io/web-audio-api/#--nyquist-frequency
+    float nyquist_frequency() const { return m_sample_rate / 2; }
+
+    void set_onstatechange(WebIDL::CallbackType*);
+    WebIDL::CallbackType* onstatechange();
+
+    void set_sample_rate(float sample_rate) { m_sample_rate = sample_rate; }
+    void set_control_state(Bindings::AudioContextState state) { m_control_thread_state = state; }
+    void set_rendering_state(Bindings::AudioContextState state) { m_rendering_thread_state = state; }
+
+    static WebIDL::ExceptionOr<void> verify_audio_options_inside_nominal_range(JS::Realm&, WebIDL::UnsignedLong number_of_channels, WebIDL::UnsignedLong length, float sample_rate);
+
+    WebIDL::ExceptionOr<JS::NonnullGCPtr<BiquadFilterNode>> create_biquad_filter();
+    WebIDL::ExceptionOr<JS::NonnullGCPtr<AudioBuffer>> create_buffer(WebIDL::UnsignedLong number_of_channels, WebIDL::UnsignedLong length, float sample_rate);
+    WebIDL::ExceptionOr<JS::NonnullGCPtr<AudioBufferSourceNode>> create_buffer_source();
+    WebIDL::ExceptionOr<JS::NonnullGCPtr<OscillatorNode>> create_oscillator();
+    WebIDL::ExceptionOr<JS::NonnullGCPtr<DynamicsCompressorNode>> create_dynamics_compressor();
+    WebIDL::ExceptionOr<JS::NonnullGCPtr<GainNode>> create_gain();
+
+    JS::NonnullGCPtr<WebIDL::Promise> decode_audio_data(JS::Handle<WebIDL::BufferSource>, JS::GCPtr<WebIDL::CallbackType>, JS::GCPtr<WebIDL::CallbackType>);
+
+protected:
+    explicit BaseAudioContext(JS::Realm&, float m_sample_rate = 0);
+
+    void queue_a_media_element_task(JS::NonnullGCPtr<JS::HeapFunction<void()>>);
+
+    virtual void initialize(JS::Realm&) override;
+    virtual void visit_edges(Cell::Visitor&) override;
+
+    JS::NonnullGCPtr<AudioDestinationNode> m_destination;
+    Vector<JS::NonnullGCPtr<WebIDL::Promise>> m_pending_promises;
+
+private:
+    void queue_a_decoding_operation(JS::NonnullGCPtr<JS::PromiseCapability>, JS::Handle<WebIDL::BufferSource>, JS::GCPtr<WebIDL::CallbackType>, JS::GCPtr<WebIDL::CallbackType>);
+
+    float m_sample_rate { 0 };
+    double m_current_time { 0 };
+
+    JS::NonnullGCPtr<AudioListener> m_listener;
+
+    Bindings::AudioContextState m_control_thread_state = Bindings::AudioContextState::Suspended;
+    Bindings::AudioContextState m_rendering_thread_state = Bindings::AudioContextState::Suspended;
+
+    HTML::UniqueTaskSource m_media_element_event_task_source {};
+};
+
+}