+++ /dev/null
-/* === S Y N F I G ========================================================= */
-/*! \file quick_rng.h
-** \brief Template Header
-**
-** $Id: guid.h 335 2007-03-16 00:39:09Z dooglus $
-**
-** \legal
-** Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
-** Copyright (c) 2007 Chris Moore
-**
-** This package 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 package 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.
-** \endlegal
-*/
-/* ========================================================================= */
-
-/* === S T A R T =========================================================== */
-
-#ifndef __SYNFIG_QUICK_RNG_H
-#define __SYNFIG_QUICK_RNG_H
-
-/* === H E A D E R S ======================================================= */
-
-#include <stdint.h>
-
-/* === M A C R O S ========================================================= */
-
-/* === T Y P E D E F S ===================================================== */
-
-/* === C L A S S E S & S T R U C T S ======================================= */
-
-// A fast 32-bit linear congruential random number generator
-class quick_rng
-{
- uint32_t next;
-public:
- quick_rng(uint32_t seed=0):next(seed) { }
-
- void set_seed(uint32_t x)
- {
- next=x;
- }
-
- uint32_t i32()
- {
- static const uint32_t a(1664525);
- static const uint32_t c(1013904223);
-
- return next=next*a+c;
- }
-
- uint32_t i16()
- {
- return i32()>>16;
- }
-
- float f()
- {
- static const float m(int(65535));
-
- return float(i16())/m;
- }
-
- uint32_t operator()(const uint32_t& m)
- {
- if(m==65536)
- return i16();
- else
- if(m<=65536)
- return i16()%m;
- else
- return i32()%m;
- }
-};
-
-/* === E N D =============================================================== */
-
-#endif