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Diffstat (limited to 'source/blender/blenkernel/intern/subdiv.c')
| -rw-r--r-- | source/blender/blenkernel/intern/subdiv.c | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/source/blender/blenkernel/intern/subdiv.c b/source/blender/blenkernel/intern/subdiv.c new file mode 100644 index 00000000000..72cd39983b9 --- /dev/null +++ b/source/blender/blenkernel/intern/subdiv.c @@ -0,0 +1,114 @@ +/* + * ***** BEGIN GPL LICENSE BLOCK ***** + * + * 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) 2018 by Blender Foundation. + * All rights reserved. + * + * Contributor(s): Sergey Sharybin. + * + * ***** END GPL LICENSE BLOCK ***** + */ + +/** \file blender/blenkernel/intern/subdiv.c + * \ingroup bke + */ + +#include "BKE_subdiv.h" + +#include "BLI_utildefines.h" + +#include "MEM_guardedalloc.h" + +#include "subdiv_converter.h" + +#ifdef WITH_OPENSUBDIV +# include "opensubdiv_capi.h" +# include "opensubdiv_converter_capi.h" +# include "opensubdiv_evaluator_capi.h" +# include "opensubdiv_topology_refiner_capi.h" +#endif + +#ifdef WITH_OPENSUBDIV +static void update_subdiv_after_topology_change(Subdiv *subdiv) +{ + /* Count ptex faces. */ + subdiv->num_ptex_faces = subdiv->topology_refiner->getNumPtexFaces( + subdiv->topology_refiner); + /* Initialize offset of base faces in ptex indices. */ + MEM_SAFE_FREE(subdiv->face_ptex_offset); + subdiv->face_ptex_offset = MEM_malloc_arrayN(subdiv->num_ptex_faces, + sizeof(int), + "subdiv ptex offset"); + subdiv->topology_refiner->fillFacePtexIndexOffset( + subdiv->topology_refiner, + subdiv->face_ptex_offset); +} +#endif + +Subdiv *BKE_subdiv_new_from_converter(const SubdivSettings *settings, + struct OpenSubdiv_Converter *converter) +{ +#ifdef WITH_OPENSUBDIV + OpenSubdiv_TopologyRefinerSettings topology_refiner_settings; + topology_refiner_settings.level = settings->level; + topology_refiner_settings.is_adaptive = settings->is_adaptive; + struct OpenSubdiv_TopologyRefiner *osd_topology_refiner = + openSubdiv_createTopologyRefinerFromConverter( + converter, &topology_refiner_settings); + if (osd_topology_refiner == NULL) { + return NULL; + } + Subdiv *subdiv = MEM_callocN(sizeof(Subdiv), "subdiv from converetr"); + subdiv->settings = *settings; + subdiv->topology_refiner = osd_topology_refiner; + subdiv->evaluator = NULL; + update_subdiv_after_topology_change(subdiv); + return subdiv; +#else + UNUSED_VARS(settings, converter); + return NULL; +#endif +} + +Subdiv *BKE_subdiv_new_from_mesh(const SubdivSettings *settings, + struct Mesh *mesh) +{ +#ifdef WITH_OPENSUBDIV + OpenSubdiv_Converter converter; + BKE_subdiv_converter_init_for_mesh(&converter, settings, mesh); + Subdiv *subdiv = BKE_subdiv_new_from_converter(settings, &converter); + BKE_subdiv_converter_free(&converter); + return subdiv; +#else + UNUSED_VARS(settings, mesh); + return NULL; +#endif +} + +void BKE_subdiv_free(Subdiv *subdiv) +{ +#ifdef WITH_OPENSUBDIV + if (subdiv->evaluator != NULL) { + openSubdiv_deleteEvaluator(subdiv->evaluator); + } + if (subdiv->topology_refiner != NULL) { + openSubdiv_deleteTopologyRefiner(subdiv->topology_refiner); + } + MEM_SAFE_FREE(subdiv->face_ptex_offset); + MEM_freeN(subdiv); +#endif +} |