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author | Tomi Korpipää <tomi.korpipaa@digia.com> | 2013-10-14 08:12:34 +0300 |
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committer | Tomi Korpipää <tomi.korpipaa@digia.com> | 2013-10-14 08:12:34 +0300 |
commit | 18a5a1510b90a16007569f436392b52553f150fa (patch) | |
tree | 190f35b2da9ad298a4bc1636d0a9d993f41ea288 /tests/spectrum/3rdparty/fftreal/TestWhiteNoiseGen.hpp | |
parent | a64c67d75badaa7662b8a05b8bc7ed78ec8e651e (diff) | |
parent | 34c345b024be424873bbb8b3c83414eea2bc7523 (diff) |
Merge remote-tracking branch 'origin/develop'
Change-Id: I3b63e58db8a5555ada270f81f88fa3b04cecada9
Diffstat (limited to 'tests/spectrum/3rdparty/fftreal/TestWhiteNoiseGen.hpp')
-rw-r--r-- | tests/spectrum/3rdparty/fftreal/TestWhiteNoiseGen.hpp | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/tests/spectrum/3rdparty/fftreal/TestWhiteNoiseGen.hpp b/tests/spectrum/3rdparty/fftreal/TestWhiteNoiseGen.hpp new file mode 100644 index 00000000..13b7eb3e --- /dev/null +++ b/tests/spectrum/3rdparty/fftreal/TestWhiteNoiseGen.hpp @@ -0,0 +1,91 @@ +/***************************************************************************** + + TestWhiteNoiseGen.hpp + Copyright (c) 2005 Laurent de Soras + +--- Legal stuff --- + +This library is free software; you can redistribute it and/or +modify it under the terms of the GNU Lesser General Public +License as published by the Free Software Foundation; either +version 2.1 of the License, or (at your option) any later version. + +This library 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 +Lesser General Public License for more details. + +You should have received a copy of the GNU Lesser General Public +License along with this library; if not, write to the Free Software +Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + +*Tab=3***********************************************************************/ + + + +#if defined (TestWhiteNoiseGen_CURRENT_CODEHEADER) + #error Recursive inclusion of TestWhiteNoiseGen code header. +#endif +#define TestWhiteNoiseGen_CURRENT_CODEHEADER + +#if ! defined (TestWhiteNoiseGen_CODEHEADER_INCLUDED) +#define TestWhiteNoiseGen_CODEHEADER_INCLUDED + + + +/*\\\ INCLUDE FILES \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/ + + + +/*\\\ PUBLIC \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/ + + + +template <class DT> +TestWhiteNoiseGen <DT>::TestWhiteNoiseGen () +: _rand_state (0) +{ + _rand_state = reinterpret_cast <StateType> (this); +} + + + +template <class DT> +void TestWhiteNoiseGen <DT>::generate (DataType data_ptr [], long len) +{ + assert (data_ptr != 0); + assert (len > 0); + + const DataType one = static_cast <DataType> (1); + const DataType mul = one / static_cast <DataType> (0x80000000UL); + + long pos = 0; + do + { + const DataType x = static_cast <DataType> (_rand_state & 0xFFFFFFFFUL); + data_ptr [pos] = x * mul - one; + + _rand_state = _rand_state * 1234567UL + 890123UL; + + ++ pos; + } + while (pos < len); +} + + + +/*\\\ PROTECTED \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/ + + + +/*\\\ PRIVATE \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/ + + + +#endif // TestWhiteNoiseGen_CODEHEADER_INCLUDED + +#undef TestWhiteNoiseGen_CURRENT_CODEHEADER + + + +/*\\\ EOF \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/ |