flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame^] | 1 | /* Copyright (c) 2015 Xiph.Org Foundation |
| 2 | Written by Viswanath Puttagunta */ |
| 3 | /** |
| 4 | @file fft_arm.h |
| 5 | @brief ARM Neon Intrinsic optimizations for fft using NE10 library |
| 6 | */ |
| 7 | |
| 8 | /* |
| 9 | Redistribution and use in source and binary forms, with or without |
| 10 | modification, are permitted provided that the following conditions |
| 11 | are met: |
| 12 | |
| 13 | - Redistributions of source code must retain the above copyright |
| 14 | notice, this list of conditions and the following disclaimer. |
| 15 | |
| 16 | - Redistributions in binary form must reproduce the above copyright |
| 17 | notice, this list of conditions and the following disclaimer in the |
| 18 | documentation and/or other materials provided with the distribution. |
| 19 | |
| 20 | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 21 | ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 22 | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 23 | A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER |
| 24 | OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| 25 | EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| 26 | PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| 27 | PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
| 28 | LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
| 29 | NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| 30 | SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 31 | */ |
| 32 | |
| 33 | |
| 34 | #if !defined(FFT_ARM_H) |
| 35 | #define FFT_ARM_H |
| 36 | |
| 37 | #include "config.h" |
| 38 | #include "kiss_fft.h" |
| 39 | |
| 40 | #if defined(HAVE_ARM_NE10) |
| 41 | |
| 42 | int opus_fft_alloc_arm_neon(kiss_fft_state *st); |
| 43 | void opus_fft_free_arm_neon(kiss_fft_state *st); |
| 44 | |
| 45 | void opus_fft_neon(const kiss_fft_state *st, |
| 46 | const kiss_fft_cpx *fin, |
| 47 | kiss_fft_cpx *fout); |
| 48 | |
| 49 | void opus_ifft_neon(const kiss_fft_state *st, |
| 50 | const kiss_fft_cpx *fin, |
| 51 | kiss_fft_cpx *fout); |
| 52 | |
| 53 | #if !defined(OPUS_HAVE_RTCD) |
| 54 | #define OVERRIDE_OPUS_FFT (1) |
| 55 | |
| 56 | #define opus_fft_alloc_arch(_st, arch) \ |
| 57 | ((void)(arch), opus_fft_alloc_arm_neon(_st)) |
| 58 | |
| 59 | #define opus_fft_free_arch(_st, arch) \ |
| 60 | ((void)(arch), opus_fft_free_arm_neon(_st)) |
| 61 | |
| 62 | #define opus_fft(_st, _fin, _fout, arch) \ |
| 63 | ((void)(arch), opus_fft_neon(_st, _fin, _fout)) |
| 64 | |
| 65 | #define opus_ifft(_st, _fin, _fout, arch) \ |
| 66 | ((void)(arch), opus_ifft_neon(_st, _fin, _fout)) |
| 67 | |
| 68 | #endif /* OPUS_HAVE_RTCD */ |
| 69 | |
| 70 | #endif /* HAVE_ARM_NE10 */ |
| 71 | |
| 72 | #endif |