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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.
*/
#ifndef __BLI_EDGEHASH_H__
#define __BLI_EDGEHASH_H__
/** \file BLI_edgehash.h
* \ingroup bli
* \author Daniel Dunbar
*/
#include "BLI_compiler_attrs.h"
struct EdgeHash;
typedef struct EdgeHash EdgeHash;
typedef struct EdgeHashIterator {
EdgeHash *eh;
struct EdgeEntry *curEntry;
unsigned int curBucket;
} 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_default(EdgeHash *eh, unsigned int v0, unsigned int v1, void *val_default) ATTR_WARN_UNUSED_RESULT;
void **BLI_edgehash_lookup_p(EdgeHash *eh, unsigned int v0, unsigned int v1) ATTR_WARN_UNUSED_RESULT;
bool BLI_edgehash_ensure_p(EdgeHash *eh, unsigned int v0, unsigned int v1, void ***r_val) ATTR_WARN_UNUSED_RESULT;
bool BLI_edgehash_remove(EdgeHash *eh, unsigned int v0, unsigned int v1, EdgeHashFreeFP valfreefp);
void *BLI_edgehash_popkey(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_len(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_init(EdgeHashIterator *ehi, EdgeHash *eh);
void BLI_edgehashIterator_free(EdgeHashIterator *ehi);
void BLI_edgehashIterator_step(EdgeHashIterator *ehi);
BLI_INLINE bool BLI_edgehashIterator_isDone(EdgeHashIterator *ehi) ATTR_WARN_UNUSED_RESULT;
BLI_INLINE void BLI_edgehashIterator_getKey(EdgeHashIterator *ehi, unsigned int *r_v0, unsigned int *r_v1);
BLI_INLINE void *BLI_edgehashIterator_getValue(EdgeHashIterator *ehi) ATTR_WARN_UNUSED_RESULT;
BLI_INLINE void **BLI_edgehashIterator_getValue_p(EdgeHashIterator *ehi) ATTR_WARN_UNUSED_RESULT;
BLI_INLINE void BLI_edgehashIterator_setValue(EdgeHashIterator *ehi, void *val);
struct _eh_Entry { void *next; unsigned int v0, v1; void *val; };
BLI_INLINE void BLI_edgehashIterator_getKey(EdgeHashIterator *ehi, unsigned int *r_v0, unsigned int *r_v1)
{ *r_v0 = ((struct _eh_Entry *)ehi->curEntry)->v0; *r_v1 = ((struct _eh_Entry *)ehi->curEntry)->v1; }
BLI_INLINE void *BLI_edgehashIterator_getValue(EdgeHashIterator *ehi) { return ((struct _eh_Entry *)ehi->curEntry)->val; }
BLI_INLINE void **BLI_edgehashIterator_getValue_p(EdgeHashIterator *ehi) { return &((struct _eh_Entry *)ehi->curEntry)->val; }
BLI_INLINE void BLI_edgehashIterator_setValue(EdgeHashIterator *ehi, void *val) { ((struct _eh_Entry *)ehi->curEntry)->val = val; }
BLI_INLINE bool BLI_edgehashIterator_isDone(EdgeHashIterator *ehi) { return (((struct _eh_Entry *)ehi->curEntry) == NULL); }
/* disallow further access */
#ifdef __GNUC__
# pragma GCC poison _eh_Entry
#else
# define _eh_Entry void
#endif
#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_len(EdgeSet *es) ATTR_WARN_UNUSED_RESULT;
bool BLI_edgeset_add(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);
void BLI_edgeset_flag_set(EdgeSet *es, unsigned int flag);
void BLI_edgeset_flag_clear(EdgeSet *es, unsigned int flag);
/* 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 *r_v0, unsigned int *r_v1) { BLI_edgehashIterator_getKey((EdgeHashIterator *)esi, r_v0, r_v1); }
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); }
#ifdef DEBUG
double BLI_edgehash_calc_quality(EdgeHash *eh);
double BLI_edgeset_calc_quality(EdgeSet *es);
#endif
#endif /* __BLI_EDGEHASH_H__ */
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