/***********************************************************************
 * Software License Agreement (BSD License)
 *
 * Copyright 2008-2011  Marius Muja (mariusm@cs.ubc.ca). All rights reserved.
 * Copyright 2008-2011  David G. Lowe (lowe@cs.ubc.ca). All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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 *************************************************************************/


#ifndef OPENCV_FLANN_DEFINES_H_
#define OPENCV_FLANN_DEFINES_H_

#include "config.h"

#ifdef FLANN_EXPORT
#undef FLANN_EXPORT
#endif
#ifdef _WIN32
/* win32 dll export/import directives */
 #ifdef FLANN_EXPORTS
  #define FLANN_EXPORT __declspec(dllexport)
 #elif defined(FLANN_STATIC)
  #define FLANN_EXPORT
 #else
  #define FLANN_EXPORT __declspec(dllimport)
 #endif
#else
/* unix needs nothing */
 #define FLANN_EXPORT
#endif


#undef FLANN_PLATFORM_32_BIT
#undef FLANN_PLATFORM_64_BIT
#if defined __amd64__ || defined __x86_64__ || defined _WIN64 || defined _M_X64
#define FLANN_PLATFORM_64_BIT
#else
#define FLANN_PLATFORM_32_BIT
#endif


#undef FLANN_ARRAY_LEN
#define FLANN_ARRAY_LEN(a) (sizeof(a)/sizeof(a[0]))

namespace cvflann {

/* Nearest neighbour index algorithms */
enum flann_algorithm_t
{
    FLANN_INDEX_LINEAR = 0,
    FLANN_INDEX_KDTREE = 1,
    FLANN_INDEX_KMEANS = 2,
    FLANN_INDEX_COMPOSITE = 3,
    FLANN_INDEX_KDTREE_SINGLE = 4,
    FLANN_INDEX_HIERARCHICAL = 5,
    FLANN_INDEX_LSH = 6,
    FLANN_INDEX_SAVED = 254,
    FLANN_INDEX_AUTOTUNED = 255,

    // deprecated constants, should use the FLANN_INDEX_* ones instead
    LINEAR = 0,
    KDTREE = 1,
    KMEANS = 2,
    COMPOSITE = 3,
    KDTREE_SINGLE = 4,
    SAVED = 254,
    AUTOTUNED = 255
};



enum flann_centers_init_t
{
    FLANN_CENTERS_RANDOM = 0,
    FLANN_CENTERS_GONZALES = 1,
    FLANN_CENTERS_KMEANSPP = 2,
    FLANN_CENTERS_GROUPWISE = 3,

    // deprecated constants, should use the FLANN_CENTERS_* ones instead
    CENTERS_RANDOM = 0,
    CENTERS_GONZALES = 1,
    CENTERS_KMEANSPP = 2
};

enum flann_log_level_t
{
    FLANN_LOG_NONE = 0,
    FLANN_LOG_FATAL = 1,
    FLANN_LOG_ERROR = 2,
    FLANN_LOG_WARN = 3,
    FLANN_LOG_INFO = 4
};

enum flann_distance_t
{
    FLANN_DIST_EUCLIDEAN = 1,
    FLANN_DIST_L2 = 1,
    FLANN_DIST_MANHATTAN = 2,
    FLANN_DIST_L1 = 2,
    FLANN_DIST_MINKOWSKI = 3,
    FLANN_DIST_MAX   = 4,
    FLANN_DIST_HIST_INTERSECT   = 5,
    FLANN_DIST_HELLINGER = 6,
    FLANN_DIST_CHI_SQUARE = 7,
    FLANN_DIST_CS         = 7,
    FLANN_DIST_KULLBACK_LEIBLER  = 8,
    FLANN_DIST_KL                = 8,
    FLANN_DIST_HAMMING          = 9,

    // deprecated constants, should use the FLANN_DIST_* ones instead
    EUCLIDEAN = 1,
    MANHATTAN = 2,
    MINKOWSKI = 3,
    MAX_DIST   = 4,
    HIST_INTERSECT   = 5,
    HELLINGER = 6,
    CS         = 7,
    KL         = 8,
    KULLBACK_LEIBLER  = 8
};

enum flann_datatype_t
{
    FLANN_INT8 = 0,
    FLANN_INT16 = 1,
    FLANN_INT32 = 2,
    FLANN_INT64 = 3,
    FLANN_UINT8 = 4,
    FLANN_UINT16 = 5,
    FLANN_UINT32 = 6,
    FLANN_UINT64 = 7,
    FLANN_FLOAT32 = 8,
    FLANN_FLOAT64 = 9
};

enum
{
    FLANN_CHECKS_UNLIMITED = -1,
    FLANN_CHECKS_AUTOTUNED = -2
};

}

#endif /* OPENCV_FLANN_DEFINES_H_ */
