mirror of
https://github.com/ndarilek/tts-rs.git
synced 2024-11-22 07:49:37 +00:00
Don't define the AVFoundation delegate more than once.
This prevents a crash when multiple instances of the TTS engine are instantiated.
This commit is contained in:
Lee Baker
parent
f404e180e4
commit
a55463dac8
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@ -7,7 +7,7 @@ use core_foundation::array::CFArray;
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use core_foundation::string::CFString;
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use core_foundation::string::CFString;
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use lazy_static::lazy_static;
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use lazy_static::lazy_static;
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use log::{info, trace};
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use log::{info, trace};
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use objc::runtime::{Object, Sel};
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use objc::runtime::{Class, Object, Sel};
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use objc::{class, declare::ClassDecl, msg_send, sel, sel_impl};
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use objc::{class, declare::ClassDecl, msg_send, sel, sel_impl};
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use unic_langid::LanguageIdentifier;
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use unic_langid::LanguageIdentifier;
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@ -24,109 +24,114 @@ pub(crate) struct AvFoundation {
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voice: Option<Voice>,
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voice: Option<Voice>,
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}
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}
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fn make_speech_sythesizer_delegate() -> Result<&'static Class, Error> {
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let mut decl = ClassDecl::new("MyNSSpeechSynthesizerDelegate", class!(NSObject))
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.ok_or(Error::OperationFailed)?;
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decl.add_ivar::<u64>("backend_id");
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extern "C" fn speech_synthesizer_did_start_speech_utterance(
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this: &Object,
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_: Sel,
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_synth: *const Object,
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utterance: id,
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) {
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trace!("speech_synthesizer_did_start_speech_utterance");
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unsafe {
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let backend_id: u64 = *this.get_ivar("backend_id");
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let backend_id = BackendId::AvFoundation(backend_id);
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trace!("Locking callbacks");
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let mut callbacks = CALLBACKS.lock().unwrap();
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trace!("Locked");
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let callbacks = callbacks.get_mut(&backend_id).unwrap();
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if let Some(callback) = callbacks.utterance_begin.as_mut() {
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trace!("Calling utterance_begin");
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let utterance_id = UtteranceId::AvFoundation(utterance);
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callback(utterance_id);
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trace!("Called");
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}
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}
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trace!("Done speech_synthesizer_did_start_speech_utterance");
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}
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extern "C" fn speech_synthesizer_did_finish_speech_utterance(
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this: &Object,
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_: Sel,
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_synth: *const Object,
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utterance: id,
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) {
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trace!("speech_synthesizer_did_finish_speech_utterance");
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unsafe {
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let backend_id: u64 = *this.get_ivar("backend_id");
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let backend_id = BackendId::AvFoundation(backend_id);
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trace!("Locking callbacks");
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let mut callbacks = CALLBACKS.lock().unwrap();
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trace!("Locked");
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let callbacks = callbacks.get_mut(&backend_id).unwrap();
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if let Some(callback) = callbacks.utterance_end.as_mut() {
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trace!("Calling utterance_end");
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let utterance_id = UtteranceId::AvFoundation(utterance);
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callback(utterance_id);
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trace!("Called");
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}
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}
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trace!("Done speech_synthesizer_did_finish_speech_utterance");
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}
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extern "C" fn speech_synthesizer_did_cancel_speech_utterance(
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this: &Object,
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_: Sel,
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_synth: *const Object,
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utterance: id,
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) {
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trace!("speech_synthesizer_did_cancel_speech_utterance");
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unsafe {
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let backend_id: u64 = *this.get_ivar("backend_id");
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let backend_id = BackendId::AvFoundation(backend_id);
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trace!("Locking callbacks");
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let mut callbacks = CALLBACKS.lock().unwrap();
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trace!("Locked");
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let callbacks = callbacks.get_mut(&backend_id).unwrap();
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if let Some(callback) = callbacks.utterance_stop.as_mut() {
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trace!("Calling utterance_stop");
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let utterance_id = UtteranceId::AvFoundation(utterance);
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callback(utterance_id);
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trace!("Called");
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}
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}
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trace!("Done speech_synthesizer_did_cancel_speech_utterance");
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}
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unsafe {
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decl.add_method(
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sel!(speechSynthesizer:didStartSpeechUtterance:),
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speech_synthesizer_did_start_speech_utterance
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as extern "C" fn(&Object, Sel, *const Object, id) -> (),
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);
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decl.add_method(
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sel!(speechSynthesizer:didFinishSpeechUtterance:),
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speech_synthesizer_did_finish_speech_utterance
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as extern "C" fn(&Object, Sel, *const Object, id) -> (),
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);
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decl.add_method(
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sel!(speechSynthesizer:didCancelSpeechUtterance:),
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speech_synthesizer_did_cancel_speech_utterance
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as extern "C" fn(&Object, Sel, *const Object, id) -> (),
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);
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}
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Ok(decl.register())
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}
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lazy_static! {
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lazy_static! {
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static ref NEXT_BACKEND_ID: Mutex<u64> = Mutex::new(0);
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static ref NEXT_BACKEND_ID: Mutex<u64> = Mutex::new(0);
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static ref DELEGATE_CLASS: &'static Class = make_speech_sythesizer_delegate().unwrap();
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}
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}
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impl AvFoundation {
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impl AvFoundation {
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pub(crate) fn new() -> Result<Self, Error> {
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pub(crate) fn new() -> Result<Self, Error> {
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info!("Initializing AVFoundation backend");
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info!("Initializing AVFoundation backend");
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let mut decl = ClassDecl::new("MyNSSpeechSynthesizerDelegate", class!(NSObject))
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.ok_or(Error::OperationFailed)?;
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decl.add_ivar::<u64>("backend_id");
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extern "C" fn speech_synthesizer_did_start_speech_utterance(
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let delegate_obj: *mut Object = unsafe { msg_send![*DELEGATE_CLASS, new] };
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this: &Object,
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_: Sel,
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_synth: *const Object,
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utterance: id,
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) {
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trace!("speech_synthesizer_did_start_speech_utterance");
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unsafe {
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let backend_id: u64 = *this.get_ivar("backend_id");
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let backend_id = BackendId::AvFoundation(backend_id);
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trace!("Locking callbacks");
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let mut callbacks = CALLBACKS.lock().unwrap();
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trace!("Locked");
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let callbacks = callbacks.get_mut(&backend_id).unwrap();
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if let Some(callback) = callbacks.utterance_begin.as_mut() {
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trace!("Calling utterance_begin");
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let utterance_id = UtteranceId::AvFoundation(utterance);
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callback(utterance_id);
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trace!("Called");
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}
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}
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trace!("Done speech_synthesizer_did_start_speech_utterance");
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}
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extern "C" fn speech_synthesizer_did_finish_speech_utterance(
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this: &Object,
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_: Sel,
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_synth: *const Object,
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utterance: id,
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) {
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trace!("speech_synthesizer_did_finish_speech_utterance");
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unsafe {
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let backend_id: u64 = *this.get_ivar("backend_id");
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let backend_id = BackendId::AvFoundation(backend_id);
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trace!("Locking callbacks");
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let mut callbacks = CALLBACKS.lock().unwrap();
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trace!("Locked");
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let callbacks = callbacks.get_mut(&backend_id).unwrap();
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if let Some(callback) = callbacks.utterance_end.as_mut() {
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trace!("Calling utterance_end");
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let utterance_id = UtteranceId::AvFoundation(utterance);
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callback(utterance_id);
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trace!("Called");
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}
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}
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trace!("Done speech_synthesizer_did_finish_speech_utterance");
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}
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extern "C" fn speech_synthesizer_did_cancel_speech_utterance(
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this: &Object,
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_: Sel,
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_synth: *const Object,
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utterance: id,
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) {
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trace!("speech_synthesizer_did_cancel_speech_utterance");
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unsafe {
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let backend_id: u64 = *this.get_ivar("backend_id");
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let backend_id = BackendId::AvFoundation(backend_id);
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trace!("Locking callbacks");
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let mut callbacks = CALLBACKS.lock().unwrap();
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trace!("Locked");
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let callbacks = callbacks.get_mut(&backend_id).unwrap();
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if let Some(callback) = callbacks.utterance_stop.as_mut() {
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trace!("Calling utterance_stop");
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let utterance_id = UtteranceId::AvFoundation(utterance);
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callback(utterance_id);
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trace!("Called");
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}
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}
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trace!("Done speech_synthesizer_did_cancel_speech_utterance");
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}
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unsafe {
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decl.add_method(
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sel!(speechSynthesizer:didStartSpeechUtterance:),
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speech_synthesizer_did_start_speech_utterance
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as extern "C" fn(&Object, Sel, *const Object, id) -> (),
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);
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decl.add_method(
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sel!(speechSynthesizer:didFinishSpeechUtterance:),
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speech_synthesizer_did_finish_speech_utterance
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as extern "C" fn(&Object, Sel, *const Object, id) -> (),
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);
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decl.add_method(
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sel!(speechSynthesizer:didCancelSpeechUtterance:),
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speech_synthesizer_did_cancel_speech_utterance
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as extern "C" fn(&Object, Sel, *const Object, id) -> (),
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);
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}
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let delegate_class = decl.register();
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let delegate_obj: *mut Object = unsafe { msg_send![delegate_class, new] };
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let mut backend_id = NEXT_BACKEND_ID.lock().unwrap();
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let mut backend_id = NEXT_BACKEND_ID.lock().unwrap();
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let rv = unsafe {
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let rv = unsafe {
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trace!("Creating synth");
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trace!("Creating synth");
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