1 files changed, 99 insertions, 0 deletions
diff --git a/source/blender/blenlib/BLI_rand.h b/source/blender/blenlib/BLI_rand.h
new file mode 100644
index 00000000000..da2ecb79651
--- /dev/null
+++ b/source/blender/blenlib/BLI_rand.h
@@ -0,0 +1,99 @@
+/**
+ * @file BLI_rand.h
+ * 
+ * Random number functions.
+ * $Id$
+ *
+ * ***** BEGIN GPL/BL DUAL 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. The Blender
+ * Foundation also sells licenses for use in proprietary software under
+ * the Blender License.  See http://www.blender.org/BL/ for information
+ * about this.
+ *
+ * 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, 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/BL DUAL LICENSE BLOCK *****
+ */
+ 
+#ifndef BLI_RAND_H
+#define BLI_RAND_H
+
+	/* RNG is just an abstract random number generator
+	 * type that avoids using globals, otherwise identical
+	 * to BLI_rand functions below.
+	 */
+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);
+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);
+
+	/** Seed the random number generator */
+void	BLI_srand		(unsigned int seed);
+
+	/** Better seed for the random number generator, using noise.c hash[] */
+void	BLI_srandom		(unsigned int seed);
+
+	/** Return a pseudo-random number N where 0<=N<(2^31) */
+int		BLI_rand		(void);
+
+	/** Return a pseudo-random number N where 0.0<=N<1.0 */
+double	BLI_drand		(void);
+
+	/** Return a pseudo-random number N where 0.0f<=N<1.0f */
+float	BLI_frand		(void);
+
+	/** Fills a block of memory starting at @a addr
+	 * and extending @a len bytes with pseudo-random
+	 * contents. This routine does not use nor modify
+	 * the state of the BLI random number generator.
+	 */
+void	BLI_fillrand	(void *addr, int len);
+
+	/** Shuffle an array randomly using the given seed.
+	 * contents. This routine does not use nor modify
+	 * the state of the BLI random number generator.
+	 */
+void	BLI_array_randomize	(void *data, int elemSize, int numElems, unsigned int seed);
+
+
+	/** Better seed for the random number generator, using noise.c hash[] */
+	/** Allows up to 16 threads to address */
+void	BLI_thread_srandom	(int thread, unsigned int seed);
+
+	/** Return a pseudo-random number N where 0<=N<(2^31) */
+	/** Allows up to 16 threads to address */
+int		BLI_thread_rand		(int thread);
+
+	/** Return a pseudo-random number N where 0.0f<=N<1.0f */
+	/** Allows up to 16 threads to address */
+float	BLI_thread_frand	(int thread);
+
+
+
+#endif
+