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/* SPDX-License-Identifier: GPL-2.0-or-later
* Copyright 2017 Blender Foundation. All rights reserved. */
/** \file
* \ingroup depsgraph
*/
#include "intern/eval/deg_eval_runtime_backup.h"
#include "intern/eval/deg_eval_copy_on_write.h"
#include "BLI_utildefines.h"
#include "DRW_engine.h"
namespace blender::deg {
RuntimeBackup::RuntimeBackup(const Depsgraph *depsgraph)
: have_backup(false),
id_data({nullptr}),
animation_backup(depsgraph),
scene_backup(depsgraph),
sound_backup(depsgraph),
object_backup(depsgraph),
drawdata_ptr(nullptr),
movieclip_backup(depsgraph),
volume_backup(depsgraph),
gpencil_backup(depsgraph)
{
drawdata_backup.first = drawdata_backup.last = nullptr;
}
void RuntimeBackup::init_from_id(ID *id)
{
if (!deg_copy_on_write_is_expanded(id)) {
return;
}
have_backup = true;
/* Clear, so freeing the expanded data doesn't touch this Python reference. */
id_data.py_instance = id->py_instance;
id->py_instance = nullptr;
animation_backup.init_from_id(id);
const ID_Type id_type = GS(id->name);
switch (id_type) {
case ID_OB:
object_backup.init_from_object(reinterpret_cast<Object *>(id));
break;
case ID_SCE:
scene_backup.init_from_scene(reinterpret_cast<Scene *>(id));
break;
case ID_SO:
sound_backup.init_from_sound(reinterpret_cast<bSound *>(id));
break;
case ID_MC:
movieclip_backup.init_from_movieclip(reinterpret_cast<MovieClip *>(id));
break;
case ID_VO:
volume_backup.init_from_volume(reinterpret_cast<Volume *>(id));
break;
case ID_GD:
gpencil_backup.init_from_gpencil(reinterpret_cast<bGPdata *>(id));
default:
break;
}
/* Note that we never free GPU draw data from here since that's not
* safe for threading and draw data is likely to be re-used. */
drawdata_ptr = DRW_drawdatalist_from_id(id);
if (drawdata_ptr != nullptr) {
drawdata_backup = *drawdata_ptr;
drawdata_ptr->first = drawdata_ptr->last = nullptr;
}
}
void RuntimeBackup::restore_to_id(ID *id)
{
if (!have_backup) {
return;
}
id->py_instance = id_data.py_instance;
animation_backup.restore_to_id(id);
const ID_Type id_type = GS(id->name);
switch (id_type) {
case ID_OB:
object_backup.restore_to_object(reinterpret_cast<Object *>(id));
break;
case ID_SCE:
scene_backup.restore_to_scene(reinterpret_cast<Scene *>(id));
break;
case ID_SO:
sound_backup.restore_to_sound(reinterpret_cast<bSound *>(id));
break;
case ID_MC:
movieclip_backup.restore_to_movieclip(reinterpret_cast<MovieClip *>(id));
break;
case ID_VO:
volume_backup.restore_to_volume(reinterpret_cast<Volume *>(id));
break;
case ID_GD:
gpencil_backup.restore_to_gpencil(reinterpret_cast<bGPdata *>(id));
default:
break;
}
if (drawdata_ptr != nullptr) {
*drawdata_ptr = drawdata_backup;
}
}
} // namespace blender::deg
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