avm2: Add `flash.media.SoundChannel` class & associated object storage
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3c3228f3c9
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@ -117,6 +117,7 @@ pub struct SystemPrototypes<'gc> {
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pub regexp: Object<'gc>,
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pub vector: Object<'gc>,
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pub soundtransform: Object<'gc>,
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pub soundchannel: Object<'gc>,
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}
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impl<'gc> SystemPrototypes<'gc> {
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@ -168,6 +169,7 @@ impl<'gc> SystemPrototypes<'gc> {
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regexp: empty,
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vector: empty,
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soundtransform: empty,
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soundchannel: empty,
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}
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}
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}
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@ -210,6 +212,7 @@ pub struct SystemClasses<'gc> {
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pub regexp: Object<'gc>,
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pub vector: Object<'gc>,
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pub soundtransform: Object<'gc>,
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pub soundchannel: Object<'gc>,
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}
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impl<'gc> SystemClasses<'gc> {
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@ -261,6 +264,7 @@ impl<'gc> SystemClasses<'gc> {
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regexp: empty,
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vector: empty,
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soundtransform: empty,
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soundchannel: empty,
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}
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}
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}
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@ -819,6 +823,13 @@ pub fn load_player_globals<'gc>(
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domain,
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script,
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)?;
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avm2_system_class!(
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soundchannel,
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activation,
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flash::media::soundchannel::create_class(mc),
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domain,
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script
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);
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// package `flash.text`
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avm2_system_class!(
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@ -1,6 +1,7 @@
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//! `flash.media` namespace
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pub mod sound;
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pub mod soundchannel;
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pub mod soundmixer;
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pub mod soundtransform;
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pub mod video;
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@ -0,0 +1,50 @@
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//! `flash.media.SoundChannel` builtin/prototype
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use crate::avm2::activation::Activation;
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use crate::avm2::class::{Class, ClassAttributes};
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use crate::avm2::method::Method;
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use crate::avm2::names::{Namespace, QName};
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use crate::avm2::object::{soundchannel_allocator, Object};
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use crate::avm2::value::Value;
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use crate::avm2::Error;
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use gc_arena::{GcCell, MutationContext};
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/// Implements `flash.media.SoundChannel`'s instance constructor.
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pub fn instance_init<'gc>(
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activation: &mut Activation<'_, 'gc, '_>,
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this: Option<Object<'gc>>,
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_args: &[Value<'gc>],
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) -> Result<Value<'gc>, Error> {
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if let Some(this) = this {
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activation.super_init(this, &[])?;
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}
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Ok(Value::Undefined)
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}
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/// Implements `flash.media.SoundChannel`'s class constructor.
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pub fn class_init<'gc>(
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_activation: &mut Activation<'_, 'gc, '_>,
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_this: Option<Object<'gc>>,
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_args: &[Value<'gc>],
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) -> Result<Value<'gc>, Error> {
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Ok(Value::Undefined)
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}
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/// Construct `SoundChannel`'s class.
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pub fn create_class<'gc>(mc: MutationContext<'gc, '_>) -> GcCell<'gc, Class<'gc>> {
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let class = Class::new(
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QName::new(Namespace::package("flash.media"), "SoundChannel"),
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Some(QName::new(Namespace::package("flash.events"), "EventDispatcher").into()),
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Method::from_builtin(instance_init, "<SoundChannel instance initializer>", mc),
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Method::from_builtin(class_init, "<SoundChannel class initializer>", mc),
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mc,
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);
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let mut write = class.write(mc);
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write.set_attributes(ClassAttributes::SEALED | ClassAttributes::FINAL);
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write.set_instance_allocator(soundchannel_allocator);
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class
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}
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@ -15,7 +15,7 @@ use crate::avm2::traits::{Trait, TraitKind};
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use crate::avm2::value::{Hint, Value};
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use crate::avm2::vector::VectorStorage;
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use crate::avm2::Error;
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use crate::backend::audio::SoundHandle;
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use crate::backend::audio::{SoundHandle, SoundInstanceHandle};
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use crate::display_object::DisplayObject;
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use gc_arena::{Collect, GcCell, MutationContext};
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use ruffle_macros::enum_trait_object;
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@ -37,6 +37,7 @@ mod primitive_object;
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mod regexp_object;
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mod script_object;
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mod sound_object;
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mod soundchannel_object;
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mod stage_object;
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mod vector_object;
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mod xml_object;
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@ -56,6 +57,7 @@ pub use crate::avm2::object::primitive_object::{primitive_allocator, PrimitiveOb
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pub use crate::avm2::object::regexp_object::{regexp_allocator, RegExpObject};
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pub use crate::avm2::object::script_object::ScriptObject;
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pub use crate::avm2::object::sound_object::{sound_allocator, SoundObject};
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pub use crate::avm2::object::soundchannel_object::{soundchannel_allocator, SoundChannelObject};
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pub use crate::avm2::object::stage_object::{stage_allocator, StageObject};
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pub use crate::avm2::object::vector_object::{vector_allocator, VectorObject};
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pub use crate::avm2::object::xml_object::{xml_allocator, XmlObject};
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@ -83,6 +85,7 @@ pub use crate::avm2::object::xml_object::{xml_allocator, XmlObject};
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ClassObject(ClassObject<'gc>),
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VectorObject(VectorObject<'gc>),
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SoundObject(SoundObject<'gc>),
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SoundChannelObject(SoundChannelObject<'gc>),
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}
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)]
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pub trait TObject<'gc>: 'gc + Collect + Debug + Into<Object<'gc>> + Clone + Copy {
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@ -1226,6 +1229,16 @@ pub trait TObject<'gc>: 'gc + Collect + Debug + Into<Object<'gc>> + Clone + Copy
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///
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/// This does nothing if the object is not a sound.
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fn set_sound(self, _mc: MutationContext<'gc, '_>, _sound: SoundHandle) {}
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/// Unwrap this object's sound instance handle.
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fn as_sound_instance(self) -> Option<SoundInstanceHandle> {
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None
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}
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/// Associate the object with a particular sound instance handle.
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///
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/// This does nothing if the object is not a sound channel.
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fn set_sound_instance(self, _mc: MutationContext<'gc, '_>, _sound: SoundInstanceHandle) {}
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}
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pub enum ObjectPtr {}
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@ -0,0 +1,110 @@
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//! Object representation for sounds
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use crate::avm2::activation::Activation;
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use crate::avm2::class::Class;
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use crate::avm2::names::{Namespace, QName};
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use crate::avm2::object::script_object::ScriptObjectData;
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use crate::avm2::object::{Object, ObjectPtr, TObject};
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use crate::avm2::scope::Scope;
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use crate::avm2::string::AvmString;
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use crate::avm2::value::Value;
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use crate::avm2::Error;
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use crate::backend::audio::SoundInstanceHandle;
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use crate::{
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impl_avm2_custom_object, impl_avm2_custom_object_instance, impl_avm2_custom_object_properties,
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};
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use gc_arena::{Collect, GcCell, MutationContext};
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/// A class instance allocator that allocates SoundChannel objects.
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pub fn soundchannel_allocator<'gc>(
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class: Object<'gc>,
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proto: Object<'gc>,
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activation: &mut Activation<'_, 'gc, '_>,
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) -> Result<Object<'gc>, Error> {
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let base = ScriptObjectData::base_new(Some(proto), Some(class));
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Ok(SoundChannelObject(GcCell::allocate(
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activation.context.gc_context,
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SoundChannelObjectData { base, sound: None },
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))
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.into())
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}
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#[derive(Clone, Collect, Debug, Copy)]
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#[collect(no_drop)]
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pub struct SoundChannelObject<'gc>(GcCell<'gc, SoundChannelObjectData<'gc>>);
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#[derive(Clone, Collect, Debug)]
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#[collect(no_drop)]
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pub struct SoundChannelObjectData<'gc> {
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/// Base script object
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base: ScriptObjectData<'gc>,
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/// The sound this object holds.
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#[collect(require_static)]
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sound: Option<SoundInstanceHandle>,
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}
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impl<'gc> SoundChannelObject<'gc> {
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/// Convert a bare sound instance into it's object representation.
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///
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/// In AS3, playing sounds are accessed through subclasses of `Sound`. As a
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/// result, this needs to take the subclass so that the returned object is
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/// an instance of the correct class.
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pub fn from_sound_instance(
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activation: &mut Activation<'_, 'gc, '_>,
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class: Object<'gc>,
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sound: SoundInstanceHandle,
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) -> Result<Object<'gc>, Error> {
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let proto = class
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.get_property(
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class,
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&QName::new(Namespace::public(), "prototype"),
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activation,
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)?
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.coerce_to_object(activation)?;
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let base = ScriptObjectData::base_new(Some(proto), Some(class));
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let mut sound_object: Object<'gc> = SoundChannelObject(GcCell::allocate(
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activation.context.gc_context,
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SoundChannelObjectData {
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base,
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sound: Some(sound),
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},
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))
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.into();
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sound_object.install_instance_traits(activation, class)?;
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//TODO: Do we need to call the default initializer of sounds?
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Ok(sound_object)
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}
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}
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impl<'gc> TObject<'gc> for SoundChannelObject<'gc> {
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impl_avm2_custom_object!(base);
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impl_avm2_custom_object_properties!(base);
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impl_avm2_custom_object_instance!(base);
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fn value_of(&self, _mc: MutationContext<'gc, '_>) -> Result<Value<'gc>, Error> {
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Ok(Object::from(*self).into())
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}
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fn derive(&self, activation: &mut Activation<'_, 'gc, '_>) -> Result<Object<'gc>, Error> {
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let base = ScriptObjectData::base_new(Some((*self).into()), None);
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Ok(SoundChannelObject(GcCell::allocate(
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activation.context.gc_context,
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SoundChannelObjectData { base, sound: None },
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))
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.into())
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}
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fn as_sound_instance(self) -> Option<SoundInstanceHandle> {
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self.0.read().sound
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}
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fn set_sound_instance(self, mc: MutationContext<'gc, '_>, sound: SoundInstanceHandle) {
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self.0.write(mc).sound = Some(sound);
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}
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}
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