BLI_rand.h

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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.
 *
 * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
 * All rights reserved.
 *
 * The Original Code is: all of this file.
 *
 * Contributor(s): none yet.
 *
 * ***** END GPL LICENSE BLOCK *****
 */
 
#ifndef BLI_RAND_H
#define BLI_RAND_H

struct RNG;
typedef struct RNG RNG;

struct RNG* rng_new         (unsigned int seed);
void        rng_free        (struct RNG* rng);

void        rng_seed        (struct RNG* rng, unsigned int seed);
void rng_srandom(struct RNG *rng, unsigned int seed);
int         rng_getInt      (struct RNG* rng);
double      rng_getDouble   (struct RNG* rng);
float       rng_getFloat    (struct RNG* rng);
void        rng_shuffleArray(struct RNG *rng, void *data, int elemSize, int numElems);

void        rng_skip        (struct RNG *rng, int n);

void    BLI_srand       (unsigned int seed);

void    BLI_srandom     (unsigned int seed);

int     BLI_rand        (void);

double  BLI_drand       (void);

float   BLI_frand       (void);

void    BLI_fillrand    (void *addr, int len);

void    BLI_array_randomize (void *data, int elemSize, int numElems, unsigned int seed);


void    BLI_thread_srandom  (int thread, unsigned int seed);

int     BLI_thread_rand     (int thread);

float   BLI_thread_frand    (int thread);



#endif