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Fixes #45025 - Protects _last_mix_time and _last_frame_time with the AudioDriver lock() and unlock() methods

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Sean LaPlante 2021-01-08 20:29:49 -05:00
parent 3099f6fae4
commit 17ac012728
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GPG key ID: 9415DE8345AE67B7
2 changed files with 14 additions and 7 deletions
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17
servers/audio_server.cpp
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@ -71,13 +71,20 @@ void AudioDriver::update_mix_time(int p_frames) {
}
}
double AudioDriver::get_time_since_last_mix() const {
return (OS::get_singleton()->get_ticks_usec() - _last_mix_time) / 1000000.0;
double AudioDriver::get_time_since_last_mix() {
lock();
uint64_t last_mix_time = _last_mix_time;
unlock();
return (OS::get_singleton()->get_ticks_usec() - last_mix_time) / 1000000.0;
}
double AudioDriver::get_time_to_next_mix() const {
double total = (OS::get_singleton()->get_ticks_usec() - _last_mix_time) / 1000000.0;
double mix_buffer = _last_mix_frames / (double)get_mix_rate();
double AudioDriver::get_time_to_next_mix() {
lock();
uint64_t last_mix_time = _last_mix_time;
uint64_t last_mix_frames = _last_mix_frames;
unlock();
double total = (OS::get_singleton()->get_ticks_usec() - last_mix_time) / 1000000.0;
double mix_buffer = last_mix_frames / (double)get_mix_rate();
return mix_buffer - total;
}

4
servers/audio_server.h
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@ -70,8 +70,8 @@ protected:
#endif
public:
double get_time_since_last_mix() const; //useful for video -> audio sync
double get_time_to_next_mix() const;
double get_time_since_last_mix(); //useful for video -> audio sync
double get_time_to_next_mix();
enum SpeakerMode {
SPEAKER_MODE_STEREO,