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1 /* Copyright (c) 2015 Xiph.Org Foundation
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2 Written by Viswanath Puttagunta */
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3 /**
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4 @file fft_arm.h
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5 @brief ARM Neon Intrinsic optimizations for fft using NE10 library
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6 */
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7
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8 /*
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9 Redistribution and use in source and binary forms, with or without
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10 modification, are permitted provided that the following conditions
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11 are met:
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12
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13 - Redistributions of source code must retain the above copyright
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14 notice, this list of conditions and the following disclaimer.
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15
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16 - Redistributions in binary form must reproduce the above copyright
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17 notice, this list of conditions and the following disclaimer in the
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18 documentation and/or other materials provided with the distribution.
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19
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20 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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21 ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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22 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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23 A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
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24 OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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25 EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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26 PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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27 PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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28 LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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29 NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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30 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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31 */
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32
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33
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34 #if !defined(FFT_ARM_H)
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35 #define FFT_ARM_H
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36
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37 #include "kiss_fft.h"
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38
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39 #if defined(HAVE_ARM_NE10)
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40
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41 int opus_fft_alloc_arm_neon(kiss_fft_state *st);
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42 void opus_fft_free_arm_neon(kiss_fft_state *st);
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43
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44 void opus_fft_neon(const kiss_fft_state *st,
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45 const kiss_fft_cpx *fin,
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46 kiss_fft_cpx *fout);
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47
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48 void opus_ifft_neon(const kiss_fft_state *st,
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49 const kiss_fft_cpx *fin,
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50 kiss_fft_cpx *fout);
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51
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52 #if !defined(OPUS_HAVE_RTCD)
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53 #define OVERRIDE_OPUS_FFT (1)
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54
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55 #define opus_fft_alloc_arch(_st, arch) \
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56 ((void)(arch), opus_fft_alloc_arm_neon(_st))
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57
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58 #define opus_fft_free_arch(_st, arch) \
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59 ((void)(arch), opus_fft_free_arm_neon(_st))
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60
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61 #define opus_fft(_st, _fin, _fout, arch) \
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62 ((void)(arch), opus_fft_neon(_st, _fin, _fout))
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63
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64 #define opus_ifft(_st, _fin, _fout, arch) \
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65 ((void)(arch), opus_ifft_neon(_st, _fin, _fout))
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66
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67 #endif /* OPUS_HAVE_RTCD */
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68
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69 #endif /* HAVE_ARM_NE10 */
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70
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71 #endif
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