| 1 | /*****************************************************************************
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| 2 |
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| 3 | FFTRealUseTrigo.hpp
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| 4 | Copyright (c) 2005 Laurent de Soras
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| 5 |
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| 6 | --- Legal stuff ---
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| 7 |
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| 8 | This library is free software; you can redistribute it and/or
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| 9 | modify it under the terms of the GNU Lesser General Public
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| 10 | License as published by the Free Software Foundation; either
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| 11 | version 2.1 of the License, or (at your option) any later version.
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| 12 |
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| 13 | This library is distributed in the hope that it will be useful,
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| 14 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 16 | Lesser General Public License for more details.
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| 17 |
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| 18 | You should have received a copy of the GNU Lesser General Public
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| 19 | License along with this library; if not, write to the Free Software
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| 20 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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| 21 |
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| 22 | *Tab=3***********************************************************************/
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| 23 |
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| 24 |
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| 25 |
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| 26 | #if defined (FFTRealUseTrigo_CURRENT_CODEHEADER)
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| 27 | #error Recursive inclusion of FFTRealUseTrigo code header.
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| 28 | #endif
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| 29 | #define FFTRealUseTrigo_CURRENT_CODEHEADER
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| 30 |
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| 31 | #if ! defined (FFTRealUseTrigo_CODEHEADER_INCLUDED)
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| 32 | #define FFTRealUseTrigo_CODEHEADER_INCLUDED
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| 33 |
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| 34 |
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| 35 |
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| 36 | /*\\\ INCLUDE FILES \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/
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| 37 |
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| 38 | #include "OscSinCos.h"
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| 39 |
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| 40 |
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| 41 |
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| 42 | /*\\\ PUBLIC \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/
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| 43 |
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| 44 |
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| 45 |
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| 46 | template <int ALGO>
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| 47 | void FFTRealUseTrigo <ALGO>::prepare (OscType &osc)
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| 48 | {
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| 49 | osc.clear_buffers ();
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| 50 | }
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| 51 |
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| 52 | template <>
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| 53 | void FFTRealUseTrigo <0>::prepare (OscType &osc)
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| 54 | {
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| 55 | // Nothing
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| 56 | }
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| 57 |
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| 58 |
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| 59 |
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| 60 | template <int ALGO>
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| 61 | void FFTRealUseTrigo <ALGO>::iterate (OscType &osc, DataType &c, DataType &s, const DataType cos_ptr [], long index_c, long index_s)
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| 62 | {
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| 63 | osc.step ();
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| 64 | c = osc.get_cos ();
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| 65 | s = osc.get_sin ();
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| 66 | }
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| 67 |
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| 68 | template <>
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| 69 | void FFTRealUseTrigo <0>::iterate (OscType &osc, DataType &c, DataType &s, const DataType cos_ptr [], long index_c, long index_s)
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| 70 | {
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| 71 | c = cos_ptr [index_c];
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| 72 | s = cos_ptr [index_s];
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| 73 | }
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| 74 |
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| 75 |
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| 76 |
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| 77 | /*\\\ PROTECTED \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/
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| 78 |
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| 79 |
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| 80 |
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| 81 | /*\\\ PRIVATE \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/
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| 82 |
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| 83 |
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| 84 |
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| 85 | #endif // FFTRealUseTrigo_CODEHEADER_INCLUDED
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| 86 |
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| 87 | #undef FFTRealUseTrigo_CURRENT_CODEHEADER
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| 88 |
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| 89 |
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| 90 |
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| 91 | /*\\\ EOF \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/
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