Moved all files one dir upwards (should've done that long ago)

2010-08-16 13:15:59 +03:00
parent a8ae1c2295
commit 51bc7a8e3e
3206 changed files with 0 additions and 0 deletions
--- a/project/jni/application/opentyrian/src/mtrand.cpp
+++ b/project/jni/application/opentyrian/src/mtrand.cpp
@@ -0,0 +1,108 @@
+/*
+   Copyright (C) 1997--2004, Makoto Matsumoto, Takuji Nishimura, and
+   Eric Landry; 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.
+
+     3. The names of its contributors may not be used to endorse or
+        promote products derived from this software without specific
+        prior written permission.
+
+   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+   "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 COPYRIGHT
+   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+   Any feedback is very welcome.
+   http://www.math.sci.hiroshima-u.ac.jp/~m-mat/MT/emt.html
+   email: m-mat @ math.sci.hiroshima-u.ac.jp (remove space)
+
+   Reference: M. Matsumoto and T. Nishimura, "Mersenne Twister:
+   A 623-Dimensionally Equidistributed Uniform Pseudo-Random Number
+   Generator", ACM Transactions on Modeling and Computer Simulation,
+   Vol. 8, No. 1, January 1998, pp 3--30.
+*/
+
+#include "mtrand.h"
+
+/* Period parameters */
+#define N 624
+#define M 397
+#define MATRIX_A 0x9908b0dfUL   /* constant vector a */
+#define UPPER_MASK 0x80000000UL /* most significant w-r bits */
+#define LOWER_MASK 0x7fffffffUL /* least significant r bits */
+
+static unsigned long x[N];      /* the array for the state vector  */
+static unsigned long *p0, *p1, *pm;
+
+void mt_srand( unsigned long s )
+{
+	int i;
+	
+	x[0] = s & 0xffffffffUL;
+	for (i = 1; i < N; ++i) {
+		x[i] = (1812433253UL * (x[i - 1] ^ (x[i - 1] >> 30)) + i)
+		     & 0xffffffffUL;           /* for >32 bit machines */
+	}
+	p0 = x;
+	p1 = x + 1;
+	pm = x + M;
+}
+
+/* generates a random number on the interval [0,0xffffffff] */
+unsigned long mt_rand( void )
+{
+	unsigned long y;
+
+	if (!p0) {
+		/* Default seed */
+		mt_srand(5489UL);
+	}
+	/* Twisted feedback */
+	y = *p0 = *pm++ ^ (((*p0 & UPPER_MASK) | (*p1 & LOWER_MASK)) >> 1) ^ ((~(*p1 & 1)+1) & MATRIX_A);
+	p0 = p1++;
+	if (pm == x + N) {
+		pm = x;
+	}
+	if (p1 == x + N) {
+		p1 = x;
+	}
+	/* Temper */
+	y ^= y >> 11;
+	y ^= y << 7 & 0x9d2c5680UL;
+	y ^= y << 15 & 0xefc60000UL;
+	y ^= y >> 18;
+	return y;
+}
+
+/* generates a random number on the interval [0,1]. */
+float mt_rand_1( void )
+{
+	return ((float)mt_rand() / (float)MT_RAND_MAX);
+}
+
+/* generates a random number on the interval [0,1). */
+float mt_rand_lt1( void )
+{
+	/* MT_RAND_MAX must be a float before adding one to it! */
+	return ((float)mt_rand() / ((float)MT_RAND_MAX + 1.0f));
+}
+
+// kate: tab-width 4; vim: set noet: