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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.
*
* Contributor(s): Daniel Dunbar
*
* ***** END GPL LICENSE BLOCK *****
*/
#ifndef __BLI_EDGEHASH_H__
#define __BLI_EDGEHASH_H__
/** \file BLI_edgehash.h
* \ingroup bli
* \author Daniel Dunbar
* \brief A general unordered 2-int pair hash table ADT.
*/
#include "BLI_compiler_attrs.h"
struct EdgeHash;
struct EdgeHashIterator;
typedef struct EdgeHash EdgeHash;
typedef struct EdgeHashIterator EdgeHashIterator;
typedef void (*EdgeHashFreeFP)(void *key);
enum {
EDGEHASH_FLAG_ALLOW_DUPES = (1 << 0), /* only checked for in debug mode */
};
EdgeHash *BLI_edgehash_new_ex(const char *info,
const unsigned int nentries_reserve);
EdgeHash *BLI_edgehash_new(const char *info) ATTR_MALLOC ATTR_WARN_UNUSED_RESULT;
void BLI_edgehash_free(EdgeHash *eh, EdgeHashFreeFP valfreefp);
void BLI_edgehash_insert(EdgeHash *eh, unsigned int v0, unsigned int v1, void *val);
bool BLI_edgehash_reinsert(EdgeHash *eh, unsigned int v0, unsigned int v1, void *val);
void *BLI_edgehash_lookup(EdgeHash *eh, unsigned int v0, unsigned int v1) ATTR_WARN_UNUSED_RESULT;
void **BLI_edgehash_lookup_p(EdgeHash *eh, unsigned int v0, unsigned int v1) ATTR_WARN_UNUSED_RESULT;
bool BLI_edgehash_haskey(EdgeHash *eh, unsigned int v0, unsigned int v1) ATTR_WARN_UNUSED_RESULT;
int BLI_edgehash_size(EdgeHash *eh) ATTR_WARN_UNUSED_RESULT;
void BLI_edgehash_clear_ex(EdgeHash *eh, EdgeHashFreeFP valfreefp,
const unsigned int nentries_reserve);
void BLI_edgehash_clear(EdgeHash *eh, EdgeHashFreeFP valfreefp);
void BLI_edgehash_flag_set(EdgeHash *eh, unsigned int flag);
void BLI_edgehash_flag_clear(EdgeHash *eh, unsigned int flag);
EdgeHashIterator *BLI_edgehashIterator_new(EdgeHash *eh) ATTR_MALLOC ATTR_WARN_UNUSED_RESULT;
void BLI_edgehashIterator_free(EdgeHashIterator *ehi);
void BLI_edgehashIterator_getKey(EdgeHashIterator *ehi, unsigned int *v0_r, unsigned int *v1_r);
void *BLI_edgehashIterator_getValue(EdgeHashIterator *ehi) ATTR_WARN_UNUSED_RESULT;
void BLI_edgehashIterator_setValue(EdgeHashIterator *ehi, void *val);
void BLI_edgehashIterator_step(EdgeHashIterator *ehi);
bool BLI_edgehashIterator_isDone(EdgeHashIterator *ehi) ATTR_WARN_UNUSED_RESULT;
#define BLI_EDGEHASH_SIZE_GUESS_FROM_LOOPS(totloop) ((totloop) / 2)
#define BLI_EDGEHASH_SIZE_GUESS_FROM_POLYS(totpoly) ((totpoly) * 2)
/* *** EdgeSet *** */
struct EdgeSet;
struct EdgeSetIterator;
typedef struct EdgeSet EdgeSet;
typedef struct EdgeSetIterator EdgeSetIterator;
EdgeSet *BLI_edgeset_new_ex(const char *info,
const unsigned int nentries_reserve) ATTR_MALLOC ATTR_WARN_UNUSED_RESULT;
EdgeSet *BLI_edgeset_new(const char *info) ATTR_MALLOC ATTR_WARN_UNUSED_RESULT;
int BLI_edgeset_size(EdgeSet *es) ATTR_WARN_UNUSED_RESULT;
bool BLI_edgeset_reinsert(EdgeSet *es, unsigned int v0, unsigned int v1);
void BLI_edgeset_insert(EdgeSet *es, unsigned int v0, unsigned int v1);
bool BLI_edgeset_haskey(EdgeSet *eh, unsigned int v0, unsigned int v1) ATTR_WARN_UNUSED_RESULT;
void BLI_edgeset_free(EdgeSet *es);
/* rely on inline api for now */
BLI_INLINE EdgeSetIterator *BLI_edgesetIterator_new(EdgeSet *gs) { return (EdgeSetIterator *)BLI_edgehashIterator_new((EdgeHash *)gs); }
BLI_INLINE void BLI_edgesetIterator_free(EdgeSetIterator *esi) { BLI_edgehashIterator_free((EdgeHashIterator *)esi); }
BLI_INLINE void BLI_edgesetIterator_getKey(EdgeSetIterator *esi, unsigned int *v0_r, unsigned int *v1_r) { return BLI_edgehashIterator_getKey((EdgeHashIterator *)esi, v0_r, v1_r); }
BLI_INLINE void BLI_edgesetIterator_step(EdgeSetIterator *esi) { BLI_edgehashIterator_step((EdgeHashIterator *)esi); }
BLI_INLINE bool BLI_edgesetIterator_isDone(EdgeSetIterator *esi) { return BLI_edgehashIterator_isDone((EdgeHashIterator *)esi); }
#endif /* __BLI_EDGEHASH_H__ */
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