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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.
*/
/** \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) {
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
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