deg_eval_runtime_backup_scene.cc

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/* SPDX-FileCopyrightText: 2019 Blender Authors
 *
 * SPDX-License-Identifier: GPL-2.0-or-later */
 
#include "intern/eval/deg_eval_runtime_backup_scene.h"
 
#include "BKE_sound.h"
 
#include "DNA_rigidbody_types.h"
#include "DNA_scene_types.h"
 
namespace blender::deg {
 
SceneBackup::SceneBackup(const Depsgraph *depsgraph) : sequencer_backup(depsgraph)
{
  reset();
}
 
void SceneBackup::reset()
{
  sound_scene = nullptr;
  playback_handle = nullptr;
  sound_scrub_handle = nullptr;
  speaker_handles = nullptr;
  rigidbody_last_time = -1;
}
 
void SceneBackup::init_from_scene(Scene *scene)
{
  BKE_sound_lock();
 
  sound_scene = scene->sound_scene;
  playback_handle = scene->playback_handle;
  sound_scrub_handle = scene->sound_scrub_handle;
  speaker_handles = scene->speaker_handles;
 
  if (scene->rigidbody_world != nullptr) {
    rigidbody_last_time = scene->rigidbody_world->ltime;
  }
 
  /* Clear pointers stored in the scene, so they are not freed when copied-on-written datablock
   * is freed for re-allocation. */
  scene->sound_scene = nullptr;
  scene->playback_handle = nullptr;
  scene->sound_scrub_handle = nullptr;
  scene->speaker_handles = nullptr;
 
  sequencer_backup.init_from_scene(scene);
}
 
void SceneBackup::restore_to_scene(Scene *scene)
{
  scene->sound_scene = sound_scene;
  scene->playback_handle = playback_handle;
  scene->sound_scrub_handle = sound_scrub_handle;
  scene->speaker_handles = speaker_handles;
 
  if (scene->rigidbody_world != nullptr) {
    scene->rigidbody_world->ltime = rigidbody_last_time;
  }
 
  sequencer_backup.restore_to_scene(scene);
 
  BKE_sound_unlock();
 
  reset();
}
 
}  // namespace blender::deg