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Diffstat (limited to 'source/blender/blenlib/BLI_rand.h')
-rw-r--r--source/blender/blenlib/BLI_rand.h68
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diff --git a/source/blender/blenlib/BLI_rand.h b/source/blender/blenlib/BLI_rand.h
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+/**
+ * @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
+
+ /** Seed the random number generator */
+void BLI_srand (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);
+
+ /** Stores the BLI randum number generator state
+ * into the buffer in @a loc_r.
+ */
+void BLI_storerand (unsigned int loc_r[2]);
+
+ /** Retores the BLI randum number generator state
+ * from the buffer in @a loc.
+ */
+void BLI_restorerand (unsigned int loc[2]);
+
+#endif