Sound: Port to a copy-on-write concept

This change makes it so sound handles are created for evaluated scene,
sequencer and speakers. This allows to have properly evaluated animation
on them.

For the viewport playback sound uses regular dependency graph.

For the final render sound uses dependency graph created for render pipeline,
which now also contains sequencer and sound datablocks.

All the direct sound update calls are replaced with corresponding dependency
graph recalc tag.

1 files changed, 21 insertions, 0 deletions

diff --git a/source/blender/blenkernel/BKE_sound.h b/source/blender/blenkernel/BKE_sound.h
index 91e23d35f0e..8d17380592e 100644
--- a/source/blender/blenkernel/BKE_sound.h
+++ b/source/blender/blenkernel/BKE_sound.h
@@ -32,6 +32,7 @@
 struct Main;
 struct Sequence;
 struct bSound;
+struct Depsgraph;
 
 typedef struct SoundWaveform {
   int length;
@@ -71,10 +72,17 @@ void BKE_sound_cache(struct bSound *sound);
 
 void BKE_sound_delete_cache(struct bSound *sound);
 
+void BKE_sound_reset_runtime(struct bSound *sound);
 void BKE_sound_load(struct Main *main, struct bSound *sound);
+void BKE_sound_ensure_loaded(struct Main *bmain, struct bSound *sound);
 
 void BKE_sound_free(struct bSound *sound);
 
+/* Is used by sequencer to temporarily load audio to access information about channels and
+ * duration. */
+void BKE_sound_load_audio(struct Main *main, struct bSound *sound);
+void BKE_sound_free_audio(struct bSound *sound);
+
 void BKE_sound_copy_data(struct Main *bmain,
                          struct bSound *sound_dst,
                          const struct bSound *sound_src,
@@ -86,7 +94,9 @@ void BKE_sound_make_local(struct Main *bmain, struct bSound *sound, const bool l
 AUD_Device *BKE_sound_mixdown(struct Scene *scene, AUD_DeviceSpecs specs, int start, float volume);
 #endif
 
+void BKE_sound_reset_scene_runtime(struct Scene *scene);
 void BKE_sound_create_scene(struct Scene *scene);
+void BKE_sound_ensure_scene(struct Scene *scene);
 
 void BKE_sound_destroy_scene(struct Scene *scene);
 
@@ -150,4 +160,15 @@ float BKE_sound_get_length(struct bSound *sound);
 
 char **BKE_sound_get_device_names(void);
 
+typedef void (*SoundJackSyncCallback)(struct Main *bmain, int mode, float time);
+
+void BKE_sound_jack_sync_callback_set(SoundJackSyncCallback callback);
+void BKE_sound_jack_scene_update(struct Scene *scene, int mode, float time);
+
+/* Dependency graph evaluation. */
+
+struct Depsgraph;
+
+void BKE_sound_evaluate(struct Depsgraph *depsgraph, struct Main *bmain, struct bSound *sound);
+
 #endif /* __BKE_SOUND_H__ */