Differential D13984 Diff 48180 source/blender/depsgraph/intern/eval/deg_eval_runtime_backup_gpencil.cc

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source/blender/depsgraph/intern/eval/deg_eval_runtime_backup_gpencil.cc

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				/*
				* This program is free software; you can redistribute it and/or
				* modify it under the terms of the GNU General Public License
				* as published by the Free Software Foundation; either version 2
				* of the License, or (at your option) any later version.
				*
				* This program is distributed in the hope that it will be useful,
				* but WITHOUT ANY WARRANTY; without even the implied warranty of
				* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
				* GNU General Public License for more details.
				*
				* You should have received a copy of the GNU General Public License
				* along with this program; if not, write to the Free Software Foundation,
				* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
				*
				* The Original Code is Copyright (C) 2022 Blender Foundation.
				* All rights reserved.
				sergeyUnsubmitted Done Inline Actions Copyright year in new files. sergey: Copyright year in new files.
				*/

				/** \file
				* \ingroup depsgraph
				*/

				#include "intern/eval/deg_eval_runtime_backup_gpencil.h"
				#include "intern/depsgraph.h"

				#include "BKE_gpencil.h"
				#include "BKE_gpencil_update_cache.h"

				#include "DNA_gpencil_types.h"

				namespace blender::deg {

				GPencilBackup::GPencilBackup(const Depsgraph *depsgraph) : depsgraph(depsgraph)
				{
				}

				void GPencilBackup::init_from_gpencil(bGPdata *UNUSED(gpd))
				{
				}

				void GPencilBackup::restore_to_gpencil(bGPdata *gpd)
				{
				bGPdata gpd_orig = reinterpret_cast<bGPdata >(gpd->id.orig_id);

				/* We check for the active depsgraph here to avoid freeing the cache on the original object
				* multiple times. This free is only needed for the case where we tagged a full update in the
				* update cache and did not do an update-on-write. */
				if (depsgraph->is_active) {
				sergeyUnsubmitted Done Inline Actions Some explanation is needed about why the cache is to be freed here, and why only for active depsgraph. Something to help future depsgraph developers to understand what's and why something is going on. sergey: Some explanation is needed about why the cache is to be freed here, and why only for active…
				BKE_gpencil_free_update_cache(gpd_orig);
				}
				/* Doing a copy-on-write copies the update cache pointer. Make sure to reset it
				* to NULL as we should never use the update cache from eval data. */
				gpd->runtime.update_cache = NULL;
				/* Make sure to update the original runtime pointers in the eval data. */
				BKE_gpencil_data_update_orig_pointers(gpd_orig, gpd);
				}

				} // namespace blender::deg