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/*
* ***** 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
}
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