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blender-archive/source/blender/blenlib/BLI_kdtree_impl.h
Campbell Barton 3d3bc74884 Cleanup: remove redundant const qualifiers for POD types
MSVC used to warn about const mismatch for arguments passed by value.
Remove these as newer versions of MSVC no longer show this warning.
2022-01-07 14:16:26 +11:00

100 lines
3.8 KiB
C++

/*
* 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.
*/
/** \file
* \ingroup bli
* \brief A KD-tree for nearest neighbor search.
*/
#include "BLI_compiler_attrs.h"
#include "BLI_sys_types.h"
#define _BLI_CONCAT_AUX(MACRO_ARG1, MACRO_ARG2) MACRO_ARG1##MACRO_ARG2
#define _BLI_CONCAT(MACRO_ARG1, MACRO_ARG2) _BLI_CONCAT_AUX(MACRO_ARG1, MACRO_ARG2)
#define BLI_kdtree_nd_(id) _BLI_CONCAT(KDTREE_PREFIX_ID, _##id)
struct KDTree;
typedef struct KDTree KDTree;
typedef struct KDTreeNearest {
int index;
float dist;
float co[KD_DIMS];
} KDTreeNearest;
KDTree *BLI_kdtree_nd_(new)(unsigned int maxsize);
void BLI_kdtree_nd_(free)(KDTree *tree);
void BLI_kdtree_nd_(balance)(KDTree *tree) ATTR_NONNULL(1);
void BLI_kdtree_nd_(insert)(KDTree *tree, int index, const float co[KD_DIMS]) ATTR_NONNULL(1, 3);
int BLI_kdtree_nd_(find_nearest)(const KDTree *tree,
const float co[KD_DIMS],
KDTreeNearest *r_nearest) ATTR_NONNULL(1, 2);
int BLI_kdtree_nd_(find_nearest_n)(const KDTree *tree,
const float co[KD_DIMS],
KDTreeNearest *r_nearest,
uint nearest_len_capacity) ATTR_NONNULL(1, 2, 3);
int BLI_kdtree_nd_(range_search)(const KDTree *tree,
const float co[KD_DIMS],
KDTreeNearest **r_nearest,
float range) ATTR_NONNULL(1, 2) ATTR_WARN_UNUSED_RESULT;
int BLI_kdtree_nd_(find_nearest_cb)(
const KDTree *tree,
const float co[KD_DIMS],
int (*filter_cb)(void *user_data, int index, const float co[KD_DIMS], float dist_sq),
void *user_data,
KDTreeNearest *r_nearest);
void BLI_kdtree_nd_(range_search_cb)(
const KDTree *tree,
const float co[KD_DIMS],
float range,
bool (*search_cb)(void *user_data, int index, const float co[KD_DIMS], float dist_sq),
void *user_data);
int BLI_kdtree_nd_(calc_duplicates_fast)(const KDTree *tree,
float range,
bool use_index_order,
int *doubles);
int BLI_kdtree_nd_(deduplicate)(KDTree *tree);
/** Versions of find/range search that take a squared distance callback to support bias. */
int BLI_kdtree_nd_(find_nearest_n_with_len_squared_cb)(
const KDTree *tree,
const float co[KD_DIMS],
KDTreeNearest *r_nearest,
uint nearest_len_capacity,
float (*len_sq_fn)(const float co_search[KD_DIMS],
const float co_test[KD_DIMS],
const void *user_data),
const void *user_data) ATTR_NONNULL(1, 2, 3);
int BLI_kdtree_nd_(range_search_with_len_squared_cb)(
const KDTree *tree,
const float co[KD_DIMS],
KDTreeNearest **r_nearest,
float range,
float (*len_sq_fn)(const float co_search[KD_DIMS],
const float co_test[KD_DIMS],
const void *user_data),
const void *user_data) ATTR_NONNULL(1, 2) ATTR_WARN_UNUSED_RESULT;
#undef _BLI_CONCAT_AUX
#undef _BLI_CONCAT
#undef BLI_kdtree_nd_