| 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 |
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| 30 | |
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| 31 | #if ! defined (FFTRealUseTrigo_CODEHEADER_INCLUDED) |
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| 32 | #define |
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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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| 92 | |
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