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LibWeb: Implement BaseAudioContext.createBuffer

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This is a simple factory function which effectively just calls the
AudioBuffer constructor.
This commit is contained in:
Shannon Booth 2024-05-26 11:56:11 +12:00 committed by Andreas Kling
parent 17ae65cedc
commit 71ccd8ad25
Notes: sideshowbarker 2024-07-17 06:35:16 +09:00 
Author: https://github.com/shannonbooth
Commit: https://github.com/SerenityOS/serenity/commit/71ccd8ad25
Pull-request: https://github.com/SerenityOS/serenity/pull/24447
6 changed files with 19 additions and 1 deletions
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1
Userland/Libraries/LibWeb/Forward.h
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@ -691,6 +691,7 @@ class Table;
}
namespace Web::WebAudio {
class AudioBuffer;
class AudioContext;
class AudioNode;
class AudioParam;

5
Userland/Libraries/LibWeb/WebAudio/AudioBuffer.cpp
View file

@ -18,6 +18,11 @@ namespace Web::WebAudio {
JS_DEFINE_ALLOCATOR(AudioBuffer);
WebIDL::ExceptionOr<JS::NonnullGCPtr<AudioBuffer>> AudioBuffer::create(JS::Realm& realm, WebIDL::UnsignedLong number_of_channels, WebIDL::UnsignedLong length, float sample_rate)
{
return construct_impl(realm, { number_of_channels, length, sample_rate });
}
WebIDL::ExceptionOr<JS::NonnullGCPtr<AudioBuffer>> AudioBuffer::construct_impl(JS::Realm& realm, AudioBufferOptions const& options)
{
auto& vm = realm.vm();

1
Userland/Libraries/LibWeb/WebAudio/AudioBuffer.h
View file

@ -28,6 +28,7 @@ class AudioBuffer final : public Bindings::PlatformObject {
JS_DECLARE_ALLOCATOR(AudioBuffer);
public:
static WebIDL::ExceptionOr<JS::NonnullGCPtr<AudioBuffer>> create(JS::Realm&, WebIDL::UnsignedLong number_of_channels, WebIDL::UnsignedLong length, float sample_rate);
static WebIDL::ExceptionOr<JS::NonnullGCPtr<AudioBuffer>> construct_impl(JS::Realm&, AudioBufferOptions const&);
virtual ~AudioBuffer() override;

9
Userland/Libraries/LibWeb/WebAudio/BaseAudioContext.cpp
View file

@ -8,6 +8,7 @@
#include <LibWeb/Bindings/BaseAudioContextPrototype.h>
#include <LibWeb/Bindings/Intrinsics.h>
#include <LibWeb/HTML/EventNames.h>
#include <LibWeb/WebAudio/AudioBuffer.h>
#include <LibWeb/WebAudio/BaseAudioContext.h>
#include <LibWeb/WebAudio/DynamicsCompressorNode.h>
#include <LibWeb/WebAudio/OscillatorNode.h>
@ -38,6 +39,14 @@ WebIDL::CallbackType* BaseAudioContext::onstatechange()
return event_handler_attribute(HTML::EventNames::statechange);
}
// https://webaudio.github.io/web-audio-api/#dom-baseaudiocontext-createbuffer
WebIDL::ExceptionOr<JS::NonnullGCPtr<AudioBuffer>> BaseAudioContext::create_buffer(WebIDL::UnsignedLong number_of_channels, WebIDL::UnsignedLong length, float sample_rate)
{
// Creates an AudioBuffer of the given size. The audio data in the buffer will be zero-initialized (silent).
// A NotSupportedError exception MUST be thrown if any of the arguments is negative, zero, or outside its nominal range.
return AudioBuffer::create(realm(), number_of_channels, length, sample_rate);
}
// https://webaudio.github.io/web-audio-api/#dom-baseaudiocontext-createoscillator
WebIDL::ExceptionOr<JS::NonnullGCPtr<OscillatorNode>> BaseAudioContext::create_oscillator()
{

1
Userland/Libraries/LibWeb/WebAudio/BaseAudioContext.h
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@ -47,6 +47,7 @@ public:
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<AudioBuffer>> create_buffer(WebIDL::UnsignedLong number_of_channels, WebIDL::UnsignedLong length, float sample_rate);
WebIDL::ExceptionOr<JS::NonnullGCPtr<OscillatorNode>> create_oscillator();
WebIDL::ExceptionOr<JS::NonnullGCPtr<DynamicsCompressorNode>> create_dynamics_compressor();

3
Userland/Libraries/LibWeb/WebAudio/BaseAudioContext.idl
View file

@ -1,5 +1,6 @@
#import <DOM/EventTarget.idl>
#import <DOM/EventHandler.idl>
#import <WebAudio/AudioBuffer.idl>
#import <WebAudio/DynamicsCompressorNode.idl>
#import <WebAudio/OscillatorNode.idl>
@ -24,7 +25,7 @@ interface BaseAudioContext : EventTarget {
[FIXME] AnalyserNode createAnalyser ();
[FIXME] BiquadFilterNode createBiquadFilter ();
[FIXME] AudioBuffer createBuffer (unsigned long numberOfChannels, unsigned long length, float sampleRate);
AudioBuffer createBuffer(unsigned long numberOfChannels, unsigned long length, float sampleRate);
[FIXME] AudioBufferSourceNode createBufferSource ();
[FIXME] ChannelMergerNode createChannelMerger (optional unsigned long numberOfInputs = 6);
[FIXME] ChannelSplitterNode createChannelSplitter (optional unsigned long numberOfOutputs = 6);