Lukas Tönne
2b55d7895c
The laplacian modifiers (smooth and deform) use the OpenNL library, which is not threadsafe due to the use of a global context variable. Ideally this would be changed so that an explicit context can be created for every caller of the OpenNL functions, but since OpenNL's most recent version is from 2010 this is unlikely to happen. As a workaround for now just use a mutex to prevent conflicting OpenNL calls. Eventually OpenNL can be replaced by eigen or ceres.
73 lines
2.6 KiB
C++
73 lines
2.6 KiB
C++
/*
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* ***** BEGIN GPL LICENSE BLOCK *****
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*
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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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* Contributor(s): Ben Batt
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*
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* ***** END GPL LICENSE BLOCK *****
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*/
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/** \file blender/modifiers/intern/MOD_util.h
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* \ingroup modifiers
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*/
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#ifndef __MOD_UTIL_H__
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#define __MOD_UTIL_H__
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/* so modifier types match their defines */
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#include "MOD_modifiertypes.h"
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struct CustomData;
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struct DerivedMesh;
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struct MDeformVert;
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struct ModifierData;
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struct Object;
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struct Scene;
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struct Tex;
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struct TexResult;
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void modifier_init_texture(struct Scene *scene, struct Tex *texture);
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void get_texture_coords(struct MappingInfoModifierData *dmd, struct Object *ob, struct DerivedMesh *dm,
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float (*co)[3], float (*texco)[3], int numVerts);
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void modifier_vgroup_cache(struct ModifierData *md, float (*vertexCos)[3]);
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struct DerivedMesh *get_cddm(struct Object *ob, struct BMEditMesh *em, struct DerivedMesh *dm,
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float (*vertexCos)[3], bool use_normals);
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struct DerivedMesh *get_dm(struct Object *ob, struct BMEditMesh *em, struct DerivedMesh *dm,
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float (*vertexCos)[3], bool use_normals, bool use_orco);
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struct DerivedMesh *get_dm_for_modifier(struct Object *ob, ModifierApplyFlag flag);
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void modifier_get_vgroup(struct Object *ob, struct DerivedMesh *dm,
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const char *name, struct MDeformVert **dvert, int *defgrp_index);
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/* XXX workaround for non-threadsafe context in OpenNL (T38403)
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* OpenNL uses global pointer for "current context", which causes
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* conflict when multiple modifiers get evaluated in threaded depgraph.
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* This is just a stupid hack to prevent assert failure / crash,
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* otherwise we'd have to modify OpenNL on a large scale.
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* OpenNL should be replaced eventually, there are other options (eigen, ceres).
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* - lukas_t
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*/
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#ifdef WITH_OPENNL
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#define OPENNL_THREADING_HACK
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#endif
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#ifdef OPENNL_THREADING_HACK
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void modifier_opennl_lock(void);
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void modifier_opennl_unlock(void);
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#endif
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#endif /* __MOD_UTIL_H__ */
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