diff options
Diffstat (limited to 'components/script/dom/audiobuffer.rs')
| -rw-r--r-- | components/script/dom/audiobuffer.rs | 98 |
1 files changed, 68 insertions, 30 deletions
diff --git a/components/script/dom/audiobuffer.rs b/components/script/dom/audiobuffer.rs index c624d0c6d36..7475bccb8a6 100644 --- a/components/script/dom/audiobuffer.rs +++ b/components/script/dom/audiobuffer.rs @@ -35,18 +35,20 @@ pub struct AudioBuffer { impl AudioBuffer { #[allow(unrooted_must_root)] #[allow(unsafe_code)] - pub fn new_inherited(global: &Window, - number_of_channels: u32, - length: u32, - sample_rate: f32, - initial_data: Option<&[f32]>) -> AudioBuffer { + pub fn new_inherited( + global: &Window, + number_of_channels: u32, + length: u32, + sample_rate: f32, + initial_data: Option<&[f32]>, + ) -> AudioBuffer { let initial_data = match initial_data { Some(initial_data) => { let mut data = vec![]; data.extend_from_slice(initial_data); data }, - None => vec![0.; (length * number_of_channels) as usize] + None => vec![0.; (length * number_of_channels) as usize], }; let cx = global.get_cx(); let mut js_channels: Vec<JSAudioChannel> = Vec::with_capacity(number_of_channels as usize); @@ -57,7 +59,8 @@ impl AudioBuffer { Float32Array::create( cx, CreateWith::Slice(&initial_data.as_slice()[offset..offset + (length as usize)]), - array.handle_mut()) + array.handle_mut(), + ) }; let js_channel = Heap::default(); js_channel.set(array.get()); @@ -66,7 +69,10 @@ impl AudioBuffer { AudioBuffer { reflector_: Reflector::new(), js_channels: DomRefCell::new(js_channels), - shared_channels: DomRefCell::new(ServoMediaAudioBuffer::new(number_of_channels as u8, length as usize)), + shared_channels: DomRefCell::new(ServoMediaAudioBuffer::new( + number_of_channels as u8, + length as usize, + )), sample_rate, length, duration: length as f64 / sample_rate as f64, @@ -75,22 +81,38 @@ impl AudioBuffer { } #[allow(unrooted_must_root)] - pub fn new(global: &Window, - number_of_channels: u32, - length: u32, - sample_rate: f32, - initial_data: Option<&[f32]>) -> DomRoot<AudioBuffer> { - let buffer = AudioBuffer::new_inherited(global, number_of_channels, length, sample_rate, initial_data); + pub fn new( + global: &Window, + number_of_channels: u32, + length: u32, + sample_rate: f32, + initial_data: Option<&[f32]>, + ) -> DomRoot<AudioBuffer> { + let buffer = AudioBuffer::new_inherited( + global, + number_of_channels, + length, + sample_rate, + initial_data, + ); reflect_dom_object(Box::new(buffer), global, AudioBufferBinding::Wrap) } // https://webaudio.github.io/web-audio-api/#dom-audiobuffer-audiobuffer - pub fn Constructor(window: &Window, - options: &AudioBufferOptions) -> Fallible<DomRoot<AudioBuffer>> { + pub fn Constructor( + window: &Window, + options: &AudioBufferOptions, + ) -> Fallible<DomRoot<AudioBuffer>> { if options.numberOfChannels > MAX_CHANNEL_COUNT { return Err(Error::NotSupported); } - Ok(AudioBuffer::new(window, options.numberOfChannels, options.length, *options.sampleRate, None)) + Ok(AudioBuffer::new( + window, + options.numberOfChannels, + options.length, + *options.sampleRate, + None, + )) } #[allow(unsafe_code)] @@ -104,7 +126,9 @@ impl AudioBuffer { // Move the channel data from shared_channels to js_channels. rooted!(in (cx) let mut array = ptr::null_mut::<JSObject>()); let shared_channel = (*self.shared_channels.borrow_mut()).buffers.remove(i); - if Float32Array::create(cx, CreateWith::Slice(&shared_channel), array.handle_mut()).is_err() { + if Float32Array::create(cx, CreateWith::Slice(&shared_channel), array.handle_mut()) + .is_err() + { return false; } channel.set(array.get()); @@ -175,7 +199,11 @@ impl AudioBufferMethods for AudioBuffer { // https://webaudio.github.io/web-audio-api/#dom-audiobuffer-getchanneldata #[allow(unsafe_code)] - unsafe fn GetChannelData(&self, cx: *mut JSContext, channel: u32) -> Fallible<NonNull<JSObject>> { + unsafe fn GetChannelData( + &self, + cx: *mut JSContext, + channel: u32, + ) -> Fallible<NonNull<JSObject>> { if channel >= self.number_of_channels { return Err(Error::IndexSize); } @@ -184,15 +212,19 @@ impl AudioBufferMethods for AudioBuffer { return Err(Error::JSFailed); } - Ok(NonNull::new_unchecked(self.js_channels.borrow()[channel as usize].get())) + Ok(NonNull::new_unchecked( + self.js_channels.borrow()[channel as usize].get(), + )) } // https://webaudio.github.io/web-audio-api/#dom-audiobuffer-copyfromchannel #[allow(unsafe_code)] - fn CopyFromChannel(&self, - mut destination: CustomAutoRooterGuard<Float32Array>, - channel_number: u32, - start_in_channel: u32) -> Fallible<()> { + fn CopyFromChannel( + &self, + mut destination: CustomAutoRooterGuard<Float32Array>, + channel_number: u32, + start_in_channel: u32, + ) -> Fallible<()> { if channel_number >= self.number_of_channels || start_in_channel > self.length { return Err(Error::IndexSize); } @@ -220,17 +252,21 @@ impl AudioBufferMethods for AudioBuffer { dest.extend_from_slice(&shared_channel.as_slice()[offset..offset + bytes_to_copy]); } - unsafe { destination.update(&dest); } + unsafe { + destination.update(&dest); + } Ok(()) } // https://webaudio.github.io/web-audio-api/#dom-audiobuffer-copytochannel #[allow(unsafe_code)] - fn CopyToChannel(&self, - source: CustomAutoRooterGuard<Float32Array>, - channel_number: u32, - start_in_channel: u32) -> Fallible<()> { + fn CopyToChannel( + &self, + source: CustomAutoRooterGuard<Float32Array>, + channel_number: u32, + start_in_channel: u32, + ) -> Fallible<()> { if channel_number >= self.number_of_channels || start_in_channel > (source.len() as u32) { return Err(Error::IndexSize); } @@ -250,7 +286,9 @@ impl AudioBufferMethods for AudioBuffer { if let Ok(mut array) = array { let bytes_to_copy = min(self.length - start_in_channel, source.len() as u32) as usize; let offset = start_in_channel as usize; - unsafe { array.update(&source.as_slice()[offset..offset + bytes_to_copy]); } + unsafe { + array.update(&source.as_slice()[offset..offset + bytes_to_copy]); + } } else { return Err(Error::IndexSize); } |