1*a58d3d2aSXin Li /* Copyright (c) 2015 Xiph.Org Foundation 2*a58d3d2aSXin Li Written by Viswanath Puttagunta */ 3*a58d3d2aSXin Li /** 4*a58d3d2aSXin Li @file fft_arm.h 5*a58d3d2aSXin Li @brief ARM Neon Intrinsic optimizations for fft using NE10 library 6*a58d3d2aSXin Li */ 7*a58d3d2aSXin Li 8*a58d3d2aSXin Li /* 9*a58d3d2aSXin Li Redistribution and use in source and binary forms, with or without 10*a58d3d2aSXin Li modification, are permitted provided that the following conditions 11*a58d3d2aSXin Li are met: 12*a58d3d2aSXin Li 13*a58d3d2aSXin Li - Redistributions of source code must retain the above copyright 14*a58d3d2aSXin Li notice, this list of conditions and the following disclaimer. 15*a58d3d2aSXin Li 16*a58d3d2aSXin Li - Redistributions in binary form must reproduce the above copyright 17*a58d3d2aSXin Li notice, this list of conditions and the following disclaimer in the 18*a58d3d2aSXin Li documentation and/or other materials provided with the distribution. 19*a58d3d2aSXin Li 20*a58d3d2aSXin Li THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 21*a58d3d2aSXin Li ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 22*a58d3d2aSXin Li LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 23*a58d3d2aSXin Li A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER 24*a58d3d2aSXin Li OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 25*a58d3d2aSXin Li EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 26*a58d3d2aSXin Li PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 27*a58d3d2aSXin Li PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 28*a58d3d2aSXin Li LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 29*a58d3d2aSXin Li NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 30*a58d3d2aSXin Li SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31*a58d3d2aSXin Li */ 32*a58d3d2aSXin Li 33*a58d3d2aSXin Li 34*a58d3d2aSXin Li #if !defined(FFT_ARM_H) 35*a58d3d2aSXin Li #define FFT_ARM_H 36*a58d3d2aSXin Li 37*a58d3d2aSXin Li #include "kiss_fft.h" 38*a58d3d2aSXin Li 39*a58d3d2aSXin Li #if defined(HAVE_ARM_NE10) 40*a58d3d2aSXin Li 41*a58d3d2aSXin Li int opus_fft_alloc_arm_neon(kiss_fft_state *st); 42*a58d3d2aSXin Li void opus_fft_free_arm_neon(kiss_fft_state *st); 43*a58d3d2aSXin Li 44*a58d3d2aSXin Li void opus_fft_neon(const kiss_fft_state *st, 45*a58d3d2aSXin Li const kiss_fft_cpx *fin, 46*a58d3d2aSXin Li kiss_fft_cpx *fout); 47*a58d3d2aSXin Li 48*a58d3d2aSXin Li void opus_ifft_neon(const kiss_fft_state *st, 49*a58d3d2aSXin Li const kiss_fft_cpx *fin, 50*a58d3d2aSXin Li kiss_fft_cpx *fout); 51*a58d3d2aSXin Li 52*a58d3d2aSXin Li #if !defined(OPUS_HAVE_RTCD) 53*a58d3d2aSXin Li #define OVERRIDE_OPUS_FFT (1) 54*a58d3d2aSXin Li 55*a58d3d2aSXin Li #define opus_fft_alloc_arch(_st, arch) \ 56*a58d3d2aSXin Li ((void)(arch), opus_fft_alloc_arm_neon(_st)) 57*a58d3d2aSXin Li 58*a58d3d2aSXin Li #define opus_fft_free_arch(_st, arch) \ 59*a58d3d2aSXin Li ((void)(arch), opus_fft_free_arm_neon(_st)) 60*a58d3d2aSXin Li 61*a58d3d2aSXin Li #define opus_fft(_st, _fin, _fout, arch) \ 62*a58d3d2aSXin Li ((void)(arch), opus_fft_neon(_st, _fin, _fout)) 63*a58d3d2aSXin Li 64*a58d3d2aSXin Li #define opus_ifft(_st, _fin, _fout, arch) \ 65*a58d3d2aSXin Li ((void)(arch), opus_ifft_neon(_st, _fin, _fout)) 66*a58d3d2aSXin Li 67*a58d3d2aSXin Li #endif /* OPUS_HAVE_RTCD */ 68*a58d3d2aSXin Li 69*a58d3d2aSXin Li #endif /* HAVE_ARM_NE10 */ 70*a58d3d2aSXin Li 71*a58d3d2aSXin Li #endif 72