diff options
Diffstat (limited to 'scene/2d/audio_stream_player_2d.cpp')
| -rw-r--r-- | scene/2d/audio_stream_player_2d.cpp | 183 |
1 files changed, 107 insertions, 76 deletions
diff --git a/scene/2d/audio_stream_player_2d.cpp b/scene/2d/audio_stream_player_2d.cpp index ea491e8b0e..bddc342c1a 100644 --- a/scene/2d/audio_stream_player_2d.cpp +++ b/scene/2d/audio_stream_player_2d.cpp @@ -31,6 +31,7 @@ #include "audio_stream_player_2d.h" #include "scene/2d/area_2d.h" +#include "scene/2d/audio_listener_2d.h" #include "scene/main/window.h" void AudioStreamPlayer2D::_notification(int p_what) { @@ -59,33 +60,47 @@ void AudioStreamPlayer2D::_notification(int p_what) { if (p_what == NOTIFICATION_INTERNAL_PHYSICS_PROCESS) { //update anything related to position first, if possible of course + if (setplay.get() > 0 || (active.is_set() && last_mix_count != AudioServer::get_singleton()->get_mix_count())) { + _update_panning(); + } - if (!stream_playback.is_valid()) { - return; + if (setplay.get() >= 0 && stream.is_valid()) { + active.set(); + Ref<AudioStreamPlayback> new_playback = stream->instance_playback(); + ERR_FAIL_COND_MSG(new_playback.is_null(), "Failed to instantiate playback."); + AudioServer::get_singleton()->start_playback_stream(new_playback, _get_actual_bus(), volume_vector, setplay.get()); + stream_playbacks.push_back(new_playback); + setplay.set(-1); } - if (setplay.get() >= 0 || (active.is_set() && last_mix_count != AudioServer::get_singleton()->get_mix_count())) { - _update_panning(); - if (setplay.get() >= 0) { - active.set(); - AudioServer::get_singleton()->start_playback_stream(stream_playback, _get_actual_bus(), volume_vector, setplay.get()); - setplay.set(-1); + + if (!stream_playbacks.is_empty() && active.is_set()) { + // Stop playing if no longer active. + Vector<Ref<AudioStreamPlayback>> playbacks_to_remove; + for (Ref<AudioStreamPlayback> &playback : stream_playbacks) { + if (playback.is_valid() && !AudioServer::get_singleton()->is_playback_active(playback) && !AudioServer::get_singleton()->is_playback_paused(playback)) { + emit_signal(SNAME("finished")); + playbacks_to_remove.push_back(playback); + } + } + // Now go through and remove playbacks that have finished. Removing elements from a Vector in a range based for is asking for trouble. + for (Ref<AudioStreamPlayback> &playback : playbacks_to_remove) { + stream_playbacks.erase(playback); + } + if (!playbacks_to_remove.is_empty() && stream_playbacks.is_empty()) { + // This node is no longer actively playing audio. + active.clear(); + set_physics_process_internal(false); } } - // Stop playing if no longer active. - if (active.is_set() && !AudioServer::get_singleton()->is_playback_active(stream_playback)) { - active.clear(); - set_physics_process_internal(false); - emit_signal(SNAME("finished")); + while (stream_playbacks.size() > max_polyphony) { + AudioServer::get_singleton()->stop_playback_stream(stream_playbacks[0]); + stream_playbacks.remove(0); } } } StringName AudioStreamPlayer2D::_get_actual_bus() { - if (!stream_playback.is_valid()) { - return SNAME("Master"); - } - Vector2 global_pos = get_global_position(); //check if any area is diverting sound into a bus @@ -113,12 +128,10 @@ StringName AudioStreamPlayer2D::_get_actual_bus() { } void AudioStreamPlayer2D::_update_panning() { - if (!stream_playback.is_valid()) { + if (!active.is_set() || stream.is_null()) { return; } - last_mix_count = AudioServer::get_singleton()->get_mix_count(); - Ref<World2D> world_2d = get_world_2d(); ERR_FAIL_COND(world_2d.is_null()); @@ -138,13 +151,22 @@ void AudioStreamPlayer2D::_update_panning() { continue; } //compute matrix to convert to screen - Transform2D to_screen = vp->get_global_canvas_transform() * vp->get_canvas_transform(); Vector2 screen_size = vp->get_visible_rect().size; + Vector2 listener_in_global; + Vector2 relative_to_listener; //screen in global is used for attenuation - Vector2 screen_in_global = to_screen.affine_inverse().xform(screen_size * 0.5); + AudioListener2D *listener = vp->get_audio_listener_2d(); + if (listener) { + listener_in_global = listener->get_global_position(); + relative_to_listener = global_pos - listener_in_global; + } else { + Transform2D to_listener = vp->get_global_canvas_transform() * vp->get_canvas_transform(); + listener_in_global = to_listener.affine_inverse().xform(screen_size * 0.5); + relative_to_listener = to_listener.xform(global_pos) - screen_size * 0.5; + } - float dist = global_pos.distance_to(screen_in_global); //distance to screen center + float dist = global_pos.distance_to(listener_in_global); // Distance to listener, or screen if none. if (dist > max_distance) { continue; //can't hear this sound in this viewport @@ -153,10 +175,7 @@ void AudioStreamPlayer2D::_update_panning() { float multiplier = Math::pow(1.0f - dist / max_distance, attenuation); multiplier *= Math::db2linear(volume_db); //also apply player volume! - //point in screen is used for panning - Vector2 point_in_screen = to_screen.xform(global_pos); - - float pan = CLAMP(point_in_screen.x / screen_size.width, 0.0, 1.0); + float pan = CLAMP((relative_to_listener.x + screen_size.x * 0.5) / screen_size.x, 0.0, 1.0); float l = 1.0 - pan; float r = pan; @@ -164,28 +183,20 @@ void AudioStreamPlayer2D::_update_panning() { volume_vector.write[0] = AudioFrame(l, r) * multiplier; } - AudioServer::get_singleton()->set_playback_bus_exclusive(stream_playback, _get_actual_bus(), volume_vector); -} - -void AudioStreamPlayer2D::set_stream(Ref<AudioStream> p_stream) { - if (stream_playback.is_valid()) { - stop(); + for (const Ref<AudioStreamPlayback> &playback : stream_playbacks) { + AudioServer::get_singleton()->set_playback_bus_exclusive(playback, _get_actual_bus(), volume_vector); } - stream_playback.unref(); - stream.unref(); - if (p_stream.is_valid()) { - stream_playback = p_stream->instance_playback(); - if (stream_playback.is_valid()) { - stream = p_stream; - } else { - stream.unref(); - } + for (Ref<AudioStreamPlayback> &playback : stream_playbacks) { + AudioServer::get_singleton()->set_playback_pitch_scale(playback, pitch_scale); } - if (p_stream.is_valid() && stream_playback.is_null()) { - stream.unref(); - } + last_mix_count = AudioServer::get_singleton()->get_mix_count(); +} + +void AudioStreamPlayer2D::set_stream(Ref<AudioStream> p_stream) { + stop(); + stream = p_stream; } Ref<AudioStream> AudioStreamPlayer2D::get_stream() const { @@ -203,8 +214,8 @@ float AudioStreamPlayer2D::get_volume_db() const { void AudioStreamPlayer2D::set_pitch_scale(float p_pitch_scale) { ERR_FAIL_COND(p_pitch_scale <= 0.0); pitch_scale = p_pitch_scale; - if (stream_playback.is_valid()) { - AudioServer::get_singleton()->set_playback_pitch_scale(stream_playback, p_pitch_scale); + for (Ref<AudioStreamPlayback> &playback : stream_playbacks) { + AudioServer::get_singleton()->set_playback_pitch_scale(playback, p_pitch_scale); } } @@ -213,44 +224,50 @@ float AudioStreamPlayer2D::get_pitch_scale() const { } void AudioStreamPlayer2D::play(float p_from_pos) { - stop(); - if (stream.is_valid()) { - stream_playback = stream->instance_playback(); + if (stream.is_null()) { + return; } - if (stream_playback.is_valid()) { - setplay.set(p_from_pos); - set_physics_process_internal(true); + ERR_FAIL_COND_MSG(!is_inside_tree(), "Playback can only happen when a node is inside the scene tree"); + if (stream->is_monophonic() && is_playing()) { + stop(); } + + setplay.set(p_from_pos); + active.set(); + set_physics_process_internal(true); } void AudioStreamPlayer2D::seek(float p_seconds) { - if (stream_playback.is_valid() && active.is_set()) { + if (is_playing()) { + stop(); play(p_seconds); } } void AudioStreamPlayer2D::stop() { - if (stream_playback.is_valid()) { - active.clear(); - AudioServer::get_singleton()->stop_playback_stream(stream_playback); - set_physics_process_internal(false); - setplay.set(-1); + setplay.set(-1); + for (Ref<AudioStreamPlayback> &playback : stream_playbacks) { + AudioServer::get_singleton()->stop_playback_stream(playback); } + stream_playbacks.clear(); + active.clear(); + set_physics_process_internal(false); } bool AudioStreamPlayer2D::is_playing() const { - if (stream_playback.is_valid()) { - return AudioServer::get_singleton()->is_playback_active(stream_playback); + for (const Ref<AudioStreamPlayback> &playback : stream_playbacks) { + if (AudioServer::get_singleton()->is_playback_active(playback)) { + return true; + } } - return false; } float AudioStreamPlayer2D::get_playback_position() { - if (stream_playback.is_valid()) { - return AudioServer::get_singleton()->get_playback_position(stream_playback); + // Return the playback position of the most recently started playback stream. + if (!stream_playbacks.is_empty()) { + return AudioServer::get_singleton()->get_playback_position(stream_playbacks[stream_playbacks.size() - 1]); } - return 0; } @@ -284,11 +301,7 @@ void AudioStreamPlayer2D::_set_playing(bool p_enable) { } bool AudioStreamPlayer2D::_is_active() const { - if (stream_playback.is_valid()) { - // TODO make sure this doesn't change any behavior w.r.t. pauses. Is a paused stream active? - return AudioServer::get_singleton()->is_playback_active(stream_playback); - } - return false; + return active.is_set(); } void AudioStreamPlayer2D::_validate_property(PropertyInfo &property) const { @@ -336,21 +349,35 @@ uint32_t AudioStreamPlayer2D::get_area_mask() const { } void AudioStreamPlayer2D::set_stream_paused(bool p_pause) { - // TODO this does not have perfect recall, fix that maybe? If the stream isn't set, we can't persist this bool. - if (stream_playback.is_valid()) { - AudioServer::get_singleton()->set_playback_paused(stream_playback, p_pause); + // TODO this does not have perfect recall, fix that maybe? If there are zero playbacks registered with the AudioServer, this bool isn't persisted. + for (Ref<AudioStreamPlayback> &playback : stream_playbacks) { + AudioServer::get_singleton()->set_playback_paused(playback, p_pause); } } bool AudioStreamPlayer2D::get_stream_paused() const { - if (stream_playback.is_valid()) { - return AudioServer::get_singleton()->is_playback_paused(stream_playback); + // There's currently no way to pause some playback streams but not others. Check the first and don't bother looking at the rest. + if (!stream_playbacks.is_empty()) { + return AudioServer::get_singleton()->is_playback_paused(stream_playbacks[0]); } return false; } Ref<AudioStreamPlayback> AudioStreamPlayer2D::get_stream_playback() { - return stream_playback; + if (!stream_playbacks.is_empty()) { + return stream_playbacks[stream_playbacks.size() - 1]; + } + return nullptr; +} + +void AudioStreamPlayer2D::set_max_polyphony(int p_max_polyphony) { + if (p_max_polyphony > 0) { + max_polyphony = p_max_polyphony; + } +} + +int AudioStreamPlayer2D::get_max_polyphony() const { + return max_polyphony; } void AudioStreamPlayer2D::_bind_methods() { @@ -391,6 +418,9 @@ void AudioStreamPlayer2D::_bind_methods() { ClassDB::bind_method(D_METHOD("set_stream_paused", "pause"), &AudioStreamPlayer2D::set_stream_paused); ClassDB::bind_method(D_METHOD("get_stream_paused"), &AudioStreamPlayer2D::get_stream_paused); + ClassDB::bind_method(D_METHOD("set_max_polyphony", "max_polyphony"), &AudioStreamPlayer2D::set_max_polyphony); + ClassDB::bind_method(D_METHOD("get_max_polyphony"), &AudioStreamPlayer2D::get_max_polyphony); + ClassDB::bind_method(D_METHOD("get_stream_playback"), &AudioStreamPlayer2D::get_stream_playback); ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "stream", PROPERTY_HINT_RESOURCE_TYPE, "AudioStream"), "set_stream", "get_stream"); @@ -401,6 +431,7 @@ void AudioStreamPlayer2D::_bind_methods() { ADD_PROPERTY(PropertyInfo(Variant::BOOL, "stream_paused", PROPERTY_HINT_NONE, ""), "set_stream_paused", "get_stream_paused"); ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "max_distance", PROPERTY_HINT_RANGE, "1,4096,1,or_greater,exp"), "set_max_distance", "get_max_distance"); ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "attenuation", PROPERTY_HINT_EXP_EASING, "attenuation"), "set_attenuation", "get_attenuation"); + ADD_PROPERTY(PropertyInfo(Variant::INT, "max_polyphony", PROPERTY_HINT_NONE, ""), "set_max_polyphony", "get_max_polyphony"); ADD_PROPERTY(PropertyInfo(Variant::STRING_NAME, "bus", PROPERTY_HINT_ENUM, ""), "set_bus", "get_bus"); ADD_PROPERTY(PropertyInfo(Variant::INT, "area_mask", PROPERTY_HINT_LAYERS_2D_PHYSICS), "set_area_mask", "get_area_mask"); |