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/*
* Copyright (C) 2020 Linux Studio Plugins Project <https://lsp-plug.in/>
* (C) 2020 Vladimir Sadovnikov <sadko4u@gmail.com>
*
* This file is part of lsp-dsp-lib
* Created on: 31 мар. 2020 г.
*
* lsp-dsp-lib 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 3 of the License, or
* any later version.
*
* lsp-dsp-lib 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 lsp-dsp-lib. If not, see <https://www.gnu.org/licenses/>.
*/
#ifndef PRIVATE_DSP_ARCH_X86_AVX_FFT_CONST_H_
#define PRIVATE_DSP_ARCH_X86_AVX_FFT_CONST_H_
#ifndef PRIVATE_DSP_ARCH_X86_AVX_IMPL
#error "This header should not be included directly"
#endif /* PRIVATE_DSP_ARCH_X86_AVX_IMPL */
namespace lsp
{
namespace avx
{
static const float FFT_A[] __lsp_aligned64 =
{
// rank == 2
1.0000000000000000, 0.7071067811865476, 0.0000000000000000, -0.7071067811865475, 1.0000000000000000, 0.7071067811865476, 0.0000000000000000, -0.7071067811865475,
0.0000000000000000, 0.7071067811865475, 1.0000000000000000, 0.7071067811865476, 0.0000000000000000, 0.7071067811865475, 1.0000000000000000, 0.7071067811865476,
// rank == 3
1.0000000000000000, 0.9238795325112867, 0.7071067811865476, 0.3826834323650898, 0.0000000000000000, -0.3826834323650897, -0.7071067811865475, -0.9238795325112867,
0.0000000000000000, 0.3826834323650898, 0.7071067811865475, 0.9238795325112867, 1.0000000000000000, 0.9238795325112867, 0.7071067811865476, 0.3826834323650899,
// rank == 4
1.0000000000000000, 0.9807852804032304, 0.9238795325112867, 0.8314696123025452, 0.7071067811865476, 0.5555702330196023, 0.3826834323650898, 0.1950903220161283,
0.0000000000000000, 0.1950903220161282, 0.3826834323650898, 0.5555702330196022, 0.7071067811865475, 0.8314696123025452, 0.9238795325112867, 0.9807852804032304,
// rank == 5
1.0000000000000000, 0.9951847266721969, 0.9807852804032304, 0.9569403357322088, 0.9238795325112867, 0.8819212643483550, 0.8314696123025452, 0.7730104533627370,
0.0000000000000000, 0.0980171403295606, 0.1950903220161282, 0.2902846772544623, 0.3826834323650898, 0.4713967368259976, 0.5555702330196022, 0.6343932841636455,
// rank == 6
1.0000000000000000, 0.9987954562051724, 0.9951847266721969, 0.9891765099647810, 0.9807852804032304, 0.9700312531945440, 0.9569403357322088, 0.9415440651830208,
0.0000000000000000, 0.0490676743274180, 0.0980171403295606, 0.1467304744553617, 0.1950903220161282, 0.2429801799032639, 0.2902846772544623, 0.3368898533922201,
// rank == 7
1.0000000000000000, 0.9996988186962042, 0.9987954562051724, 0.9972904566786902, 0.9951847266721969, 0.9924795345987100, 0.9891765099647810, 0.9852776423889412,
0.0000000000000000, 0.0245412285229123, 0.0490676743274180, 0.0735645635996674, 0.0980171403295606, 0.1224106751992162, 0.1467304744553617, 0.1709618887603012,
// rank == 8
1.0000000000000000, 0.9999247018391445, 0.9996988186962042, 0.9993223845883495, 0.9987954562051724, 0.9981181129001492, 0.9972904566786902, 0.9963126121827780,
0.0000000000000000, 0.0122715382857199, 0.0245412285229123, 0.0368072229413588, 0.0490676743274180, 0.0613207363022086, 0.0735645635996674, 0.0857973123444399,
// rank == 9
1.0000000000000000, 0.9999811752826011, 0.9999247018391445, 0.9998305817958234, 0.9996988186962042, 0.9995294175010931, 0.9993223845883495, 0.9990777277526454,
0.0000000000000000, 0.0061358846491545, 0.0122715382857199, 0.0184067299058048, 0.0245412285229123, 0.0306748031766366, 0.0368072229413588, 0.0429382569349408,
// rank == 10
1.0000000000000000, 0.9999952938095762, 0.9999811752826011, 0.9999576445519639, 0.9999247018391445, 0.9998823474542126, 0.9998305817958234, 0.9997694053512153,
0.0000000000000000, 0.0030679567629660, 0.0061358846491545, 0.0092037547820598, 0.0122715382857199, 0.0153392062849881, 0.0184067299058048, 0.0214740802754695,
// rank == 11
1.0000000000000000, 0.9999988234517019, 0.9999952938095762, 0.9999894110819284, 0.9999811752826011, 0.9999705864309741, 0.9999576445519639, 0.9999423496760239,
0.0000000000000000, 0.0015339801862848, 0.0030679567629660, 0.0046019261204486, 0.0061358846491545, 0.0076698287395311, 0.0092037547820598, 0.0107376591672645,
// rank == 12
1.0000000000000000, 0.9999997058628822, 0.9999988234517019, 0.9999973527669782, 0.9999952938095762, 0.9999926465807072, 0.9999894110819284, 0.9999855873151432,
0.0000000000000000, 0.0007669903187427, 0.0015339801862848, 0.0023009691514258, 0.0030679567629660, 0.0038349425697062, 0.0046019261204486, 0.0053689069639963,
// rank == 13
1.0000000000000000, 0.9999999264657179, 0.9999997058628822, 0.9999993381915255, 0.9999988234517019, 0.9999981616434870, 0.9999973527669782, 0.9999963968222944,
0.0000000000000000, 0.0003834951875714, 0.0007669903187427, 0.0011504853371138, 0.0015339801862848, 0.0019174748098554, 0.0023009691514258, 0.0026844631545960,
// rank == 14
1.0000000000000000, 0.9999999816164293, 0.9999999264657179, 0.9999998345478677, 0.9999997058628822, 0.9999995404107661, 0.9999993381915255, 0.9999990992051678,
0.0000000000000000, 0.0001917475973107, 0.0003834951875714, 0.0005752427637321, 0.0007669903187427, 0.0009587378455533, 0.0011504853371138, 0.0013422327863743,
// rank == 15
1.0000000000000000, 0.9999999954041073, 0.9999999816164293, 0.9999999586369661, 0.9999999264657179, 0.9999998851026849, 0.9999998345478677, 0.9999997748012666,
0.0000000000000000, 0.0000958737990960, 0.0001917475973107, 0.0002876213937629, 0.0003834951875714, 0.0004793689778549, 0.0005752427637321, 0.0006711165443218,
// rank == 16
1.0000000000000000, 0.9999999988510269, 0.9999999954041073, 0.9999999896592414, 0.9999999816164293, 0.9999999712756709, 0.9999999586369661, 0.9999999437003151,
0.0000000000000000, 0.0000479368996031, 0.0000958737990960, 0.0001438106983686, 0.0001917475973107, 0.0002396844958122, 0.0002876213937629, 0.0003355582910527,
// rank == 17
1.0000000000000000, 0.9999999997127567, 0.9999999988510269, 0.9999999974148104, 0.9999999954041073, 0.9999999928189177, 0.9999999896592414, 0.9999999859250787,
0.0000000000000000, 0.0000239684498084, 0.0000479368996031, 0.0000719053493702, 0.0000958737990960, 0.0001198422487667, 0.0001438106983686, 0.0001677791478878,
};
static const float FFT_DW[] __lsp_aligned64 =
{
LSP_DSP_VEC8(0.0000000000000000), LSP_DSP_VEC8(1.0000000000000000), // rank = 2
LSP_DSP_VEC8(-1.0000000000000000), LSP_DSP_VEC8(0.0000000000000000), // rank = 3
LSP_DSP_VEC8(0.0000000000000000), LSP_DSP_VEC8(1.0000000000000000), // rank = 4
LSP_DSP_VEC8(0.7071067811865476), LSP_DSP_VEC8(0.7071067811865475), // rank = 5
LSP_DSP_VEC8(0.9238795325112867), LSP_DSP_VEC8(0.3826834323650898), // rank = 6
LSP_DSP_VEC8(0.9807852804032304), LSP_DSP_VEC8(0.1950903220161282), // rank = 7
LSP_DSP_VEC8(0.9951847266721969), LSP_DSP_VEC8(0.0980171403295606), // rank = 8
LSP_DSP_VEC8(0.9987954562051724), LSP_DSP_VEC8(0.0490676743274180), // rank = 9
LSP_DSP_VEC8(0.9996988186962042), LSP_DSP_VEC8(0.0245412285229123), // rank = 10
LSP_DSP_VEC8(0.9999247018391445), LSP_DSP_VEC8(0.0122715382857199), // rank = 11
LSP_DSP_VEC8(0.9999811752826011), LSP_DSP_VEC8(0.0061358846491545), // rank = 12
LSP_DSP_VEC8(0.9999952938095762), LSP_DSP_VEC8(0.0030679567629660), // rank = 13
LSP_DSP_VEC8(0.9999988234517019), LSP_DSP_VEC8(0.0015339801862848), // rank = 14
LSP_DSP_VEC8(0.9999997058628822), LSP_DSP_VEC8(0.0007669903187427), // rank = 15
LSP_DSP_VEC8(0.9999999264657179), LSP_DSP_VEC8(0.0003834951875714), // rank = 16
LSP_DSP_VEC8(0.9999999816164293), LSP_DSP_VEC8(0.0001917475973107), // rank = 17
LSP_DSP_VEC8(0.9999999954041073), LSP_DSP_VEC8(0.0000958737990960), // rank = 18
};
}
}
#endif /* PRIVATE_DSP_ARCH_X86_AVX_FFT_CONST_H_ */
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