Initial AudioParam bindings

This commit is contained in:
Fernando Jiménez Moreno 2018-06-29 09:11:11 +02:00
parent 885addfaae
commit 7380f69f77
8 changed files with 187 additions and 55 deletions

View file

@ -3,30 +3,44 @@
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
use dom::bindings::codegen::Bindings::AudioParamBinding;
use dom::bindings::codegen::Bindings::AudioParamBinding::AudioParamMethods;
use dom::bindings::codegen::Bindings::AudioParamBinding::{AudioParamMethods, AutomationRate};
use dom::bindings::num::Finite;
use dom::bindings::reflector::{Reflector, reflect_dom_object};
use dom::bindings::root::DomRoot;
use dom::globalscope::GlobalScope;
use dom::bindings::trace::JSTraceable;
use dom::window::Window;
use dom_struct::dom_struct;
use malloc_size_of::MallocSizeOf;
use servo_media::audio::param::RampKind;
use std::cell::Cell;
pub trait AudioParamImpl: JSTraceable + MallocSizeOf {
fn set_value(&self, value: f32);
fn set_value_at_time(&self, value: f32, start_time: f64);
fn ramp_to_value_at_time(&self, ramp_kind: RampKind, value: f32, end_time: f64);
fn set_target_at_time(&self, value: f32, start_time: f64, time_constant: f32);
}
#[dom_struct]
pub struct AudioParam {
reflector_: Reflector,
value: Cell<f32>,
param_impl: Box<AudioParamImpl>,
automation_rate: Cell<AutomationRate>,
default_value: f32,
min_value: f32,
max_value: f32,
}
impl AudioParam {
pub fn new_inherited(default_value: f32,
pub fn new_inherited(param_impl: Box<AudioParamImpl>,
automation_rate: AutomationRate,
default_value: f32,
min_value: f32,
max_value: f32) -> AudioParam {
AudioParam {
reflector_: Reflector::new(),
value: Cell::new(default_value),
param_impl,
automation_rate: Cell::new(automation_rate),
default_value,
min_value,
max_value,
@ -34,22 +48,35 @@ impl AudioParam {
}
#[allow(unrooted_must_root)]
pub fn new(global: &GlobalScope,
pub fn new(window: &Window,
param_impl: Box<AudioParamImpl>,
automation_rate: AutomationRate,
default_value: f32,
min_value: f32,
max_value: f32) -> DomRoot<AudioParam> {
let audio_param = AudioParam::new_inherited(default_value, min_value, max_value);
reflect_dom_object(Box::new(audio_param), global, AudioParamBinding::Wrap)
let audio_param = AudioParam::new_inherited(param_impl, automation_rate,
default_value, min_value, max_value);
reflect_dom_object(Box::new(audio_param), window, AudioParamBinding::Wrap)
}
}
impl AudioParamMethods for AudioParam {
fn AutomationRate(&self) -> AutomationRate {
self.automation_rate.get()
}
fn SetAutomationRate(&self, automation_rate: AutomationRate) {
self.automation_rate.set(automation_rate);
// XXX set servo-media param automation rate
}
fn Value(&self) -> Finite<f32> {
Finite::wrap(self.value.get())
// XXX
Finite::wrap(0.)
}
fn SetValue(&self, value: Finite<f32>) {
self.value.set(*value);
self.param_impl.set_value(*value);
}
fn DefaultValue(&self) -> Finite<f32> {
@ -63,4 +90,32 @@ impl AudioParamMethods for AudioParam {
fn MaxValue(&self) -> Finite<f32> {
Finite::wrap(self.max_value)
}
fn SetValueAtTime(&self, value: Finite<f32>, start_time: Finite<f64>)
-> DomRoot<AudioParam>
{
self.param_impl.set_value_at_time(*value, *start_time);
DomRoot::from_ref(self)
}
fn LinearRampToValueAtTime(&self, value: Finite<f32>, end_time: Finite<f64>)
-> DomRoot<AudioParam>
{
self.param_impl.ramp_to_value_at_time(RampKind::Linear, *value, *end_time);
DomRoot::from_ref(self)
}
fn ExponentialRampToValueAtTime(&self, value: Finite<f32>, end_time: Finite<f64>)
-> DomRoot<AudioParam>
{
self.param_impl.ramp_to_value_at_time(RampKind::Exponential, *value, *end_time);
DomRoot::from_ref(self)
}
fn SetTargetAtTime(&self, target: Finite<f32>, start_time: Finite<f64>, time_constant: Finite<f32>)
-> DomRoot<AudioParam>
{
self.param_impl.set_target_at_time(*target, *start_time, *time_constant);
DomRoot::from_ref(self)
}
}