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Add samples playback support

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This commit is contained in:
Adam Scott
2024-04-18 10:50:34 -04:00
parent eb20a68b32
commit 52fa4f05f3
42 changed files with 2611 additions and 46 deletions
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54
scene/resources/audio_stream_polyphonic.cpp
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@ -29,7 +29,10 @@
/**************************************************************************/
#include "audio_stream_polyphonic.h"
#include "audio_stream_polyphonic.compat.inc"
#include "scene/main/scene_tree.h"
#include "servers/audio_server.h"
Ref<AudioStreamPlayback> AudioStreamPolyphonic::instantiate_playback() {
Ref<AudioStreamPlaybackPolyphonic> playback;
@ -136,6 +139,10 @@ int AudioStreamPlaybackPolyphonic::mix(AudioFrame *p_buffer, float p_rate_scale,
continue;
}
if (s.stream_playback->get_is_sample()) {
continue;
}
float volume_db = s.volume_db; // Copy because it can be overridden at any time.
float next_volume = Math::db_to_linear(volume_db);
s.prev_volume_db = volume_db;
@ -195,8 +202,13 @@ int AudioStreamPlaybackPolyphonic::mix(AudioFrame *p_buffer, float p_rate_scale,
return p_frames;
}
AudioStreamPlaybackPolyphonic::ID AudioStreamPlaybackPolyphonic::play_stream(const Ref<AudioStream> &p_stream, float p_from_offset, float p_volume_db, float p_pitch_scale) {
AudioStreamPlaybackPolyphonic::ID AudioStreamPlaybackPolyphonic::play_stream(const Ref<AudioStream> &p_stream, float p_from_offset, float p_volume_db, float p_pitch_scale, AudioServer::PlaybackType p_playback_type, const StringName &p_bus) {
ERR_FAIL_COND_V(p_stream.is_null(), INVALID_ID);
AudioServer::PlaybackType playback_type = p_playback_type == AudioServer::PlaybackType::PLAYBACK_TYPE_DEFAULT
? AudioServer::get_singleton()->get_default_playback_type()
: p_playback_type;
for (uint32_t i = 0; i < streams.size(); i++) {
if (!streams[i].active.is_set()) {
// Can use this stream, as it's not active.
@ -210,6 +222,28 @@ AudioStreamPlaybackPolyphonic::ID AudioStreamPlaybackPolyphonic::play_stream(con
streams[i].finish_request.clear();
streams[i].pending_play.set();
streams[i].active.set();
// Sample playback.
if (playback_type == AudioServer::PlaybackType::PLAYBACK_TYPE_SAMPLE && p_stream->can_be_sampled()) {
streams[i].stream_playback->set_is_sample(true);
if (!AudioServer::get_singleton()->is_stream_registered_as_sample(p_stream)) {
AudioServer::get_singleton()->register_stream_as_sample(p_stream);
}
float linear_volume = Math::db_to_linear(p_volume_db);
Ref<AudioSamplePlayback> sp;
sp.instantiate();
sp->stream = streams[i].stream;
sp->offset = p_from_offset;
sp->volume_vector.resize(4);
sp->volume_vector.write[0] = AudioFrame(linear_volume, linear_volume);
sp->volume_vector.write[1] = AudioFrame(linear_volume, /* LFE= */ 1.0f);
sp->volume_vector.write[2] = AudioFrame(linear_volume, linear_volume);
sp->volume_vector.write[3] = AudioFrame(linear_volume, linear_volume);
sp->bus = p_bus;
streams[i].stream_playback->set_sample_playback(sp);
AudioServer::get_singleton()->start_sample_playback(sp);
}
return (ID(i) << INDEX_SHIFT) | ID(streams[i].id);
}
}
@ -260,8 +294,24 @@ void AudioStreamPlaybackPolyphonic::stop_stream(ID p_stream_id) {
s->finish_request.set();
}
void AudioStreamPlaybackPolyphonic::set_is_sample(bool p_is_sample) {
_is_sample = p_is_sample;
}
bool AudioStreamPlaybackPolyphonic::get_is_sample() const {
return _is_sample;
}
Ref<AudioSamplePlayback> AudioStreamPlaybackPolyphonic::get_sample_playback() const {
return sample_playback;
}
void AudioStreamPlaybackPolyphonic::set_sample_playback(const Ref<AudioSamplePlayback> &p_playback) {
sample_playback = p_playback;
}
void AudioStreamPlaybackPolyphonic::_bind_methods() {
ClassDB::bind_method(D_METHOD("play_stream", "stream", "from_offset", "volume_db", "pitch_scale"), &AudioStreamPlaybackPolyphonic::play_stream, DEFVAL(0), DEFVAL(0), DEFVAL(1.0));
ClassDB::bind_method(D_METHOD("play_stream", "stream", "from_offset", "volume_db", "pitch_scale", "playback_type", "bus"), &AudioStreamPlaybackPolyphonic::play_stream, DEFVAL(0), DEFVAL(0), DEFVAL(1.0), DEFVAL(0), DEFVAL(SceneStringName(Master)));
ClassDB::bind_method(D_METHOD("set_stream_volume", "stream", "volume_db"), &AudioStreamPlaybackPolyphonic::set_stream_volume);
ClassDB::bind_method(D_METHOD("set_stream_pitch_scale", "stream", "pitch_scale"), &AudioStreamPlaybackPolyphonic::set_stream_pitch_scale);
ClassDB::bind_method(D_METHOD("is_stream_playing", "stream"), &AudioStreamPlaybackPolyphonic::is_stream_playing);