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Initial AudioParam bindings

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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
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53
components/script/dom/macros.rs
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@ -629,3 +629,56 @@ macro_rules! handle_potential_webgl_error {
handle_potential_webgl_error!($context, $call, ());
};
}
macro_rules! audio_param_impl(
($struct:ident, $node_type:ident, $message_type:ident, $setter:ident) => (
#[derive(JSTraceable, MallocSizeOf)]
struct $struct {
#[ignore_malloc_size_of = "Rc"]
context: Rc<AudioContext>,
#[ignore_malloc_size_of = "servo_media"]
node: NodeId,
}
impl $struct {
pub fn new(context: Rc<AudioContext>,
node: NodeId) -> Self {
Self {
context,
node,
}
}
}
impl AudioParamImpl for $struct {
fn set_value(&self, _value: f32) {}
fn set_value_at_time(&self, value: f32, start_time: f64) {
self.context.message_node(
self.node,
AudioNodeMessage::$node_type($message_type::$setter(
UserAutomationEvent::SetValueAtTime(value, start_time),
)),
);
}
fn ramp_to_value_at_time(&self, ramp_kind: RampKind, value: f32, end_time: f64) {
self.context.message_node(
self.node,
AudioNodeMessage::$node_type($message_type::$setter(
UserAutomationEvent::RampToValueAtTime(ramp_kind, value, end_time),
)),
);
}
fn set_target_at_time(&self, target: f32, start_time: f64, time_constant: f32) {
self.context.message_node(
self.node,
AudioNodeMessage::$node_type($message_type::$setter(
UserAutomationEvent::SetTargetAtTime(target, start_time, time_constant.into()),
)),
);
}
}
);
);