Campbell Barton
a23e49c696
As Python can access COW ID's, ensure it's instance is kept on update. This could happen when the "Use Self" argument was enabled for a driver.
125 lines
3.3 KiB
C++
125 lines
3.3 KiB
C++
/*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* The Original Code is Copyright (C) 2017 Blender Foundation.
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* All rights reserved.
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*/
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/** \file
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* \ingroup depsgraph
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*/
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#include "intern/eval/deg_eval_runtime_backup.h"
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#include "intern/eval/deg_eval_copy_on_write.h"
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#include "BLI_utildefines.h"
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#include "DRW_engine.h"
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namespace blender::deg {
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RuntimeBackup::RuntimeBackup(const Depsgraph *depsgraph)
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: have_backup(false),
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id_data({.py_instance = nullptr}),
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animation_backup(depsgraph),
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scene_backup(depsgraph),
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sound_backup(depsgraph),
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object_backup(depsgraph),
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drawdata_ptr(nullptr),
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movieclip_backup(depsgraph),
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volume_backup(depsgraph)
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{
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drawdata_backup.first = drawdata_backup.last = nullptr;
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}
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void RuntimeBackup::init_from_id(ID *id)
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{
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if (!deg_copy_on_write_is_expanded(id)) {
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return;
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}
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have_backup = true;
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id_data.py_instance = id->py_instance;
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animation_backup.init_from_id(id);
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const ID_Type id_type = GS(id->name);
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switch (id_type) {
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case ID_OB:
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object_backup.init_from_object(reinterpret_cast<Object *>(id));
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break;
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case ID_SCE:
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scene_backup.init_from_scene(reinterpret_cast<Scene *>(id));
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break;
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case ID_SO:
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sound_backup.init_from_sound(reinterpret_cast<bSound *>(id));
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break;
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case ID_MC:
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movieclip_backup.init_from_movieclip(reinterpret_cast<MovieClip *>(id));
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break;
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case ID_VO:
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volume_backup.init_from_volume(reinterpret_cast<Volume *>(id));
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break;
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default:
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break;
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}
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/* Note that we never free GPU draw data from here since that's not
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* safe for threading and draw data is likely to be re-used. */
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drawdata_ptr = DRW_drawdatalist_from_id(id);
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if (drawdata_ptr != nullptr) {
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drawdata_backup = *drawdata_ptr;
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drawdata_ptr->first = drawdata_ptr->last = nullptr;
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}
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}
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void RuntimeBackup::restore_to_id(ID *id)
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{
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if (!have_backup) {
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return;
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}
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id->py_instance = id_data.py_instance;
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animation_backup.restore_to_id(id);
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const ID_Type id_type = GS(id->name);
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switch (id_type) {
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case ID_OB:
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object_backup.restore_to_object(reinterpret_cast<Object *>(id));
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break;
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case ID_SCE:
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scene_backup.restore_to_scene(reinterpret_cast<Scene *>(id));
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break;
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case ID_SO:
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sound_backup.restore_to_sound(reinterpret_cast<bSound *>(id));
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break;
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case ID_MC:
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movieclip_backup.restore_to_movieclip(reinterpret_cast<MovieClip *>(id));
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break;
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case ID_VO:
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volume_backup.restore_to_volume(reinterpret_cast<Volume *>(id));
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break;
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default:
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break;
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}
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if (drawdata_ptr != nullptr) {
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*drawdata_ptr = drawdata_backup;
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}
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}
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} // namespace blender::deg
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