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Diffstat (limited to 'scene/2d/audio_stream_player_2d.cpp')
-rw-r--r--scene/2d/audio_stream_player_2d.cpp183
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..8401909384 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/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+ // Stop playing if no longer active.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);
+ Listener2D *listener = vp->get_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");