1 /* Copyright (c) 2015 Xiph.Org Foundation 2 Written by Viswanath Puttagunta */ 3 /** 4 @file arm_mdct.h 5 @brief ARM Neon Intrinsic optimizations for mdct 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 #if !defined(MDCT_ARM_H) 34 #define MDCT_ARM_H 35 36 #include "mdct.h" 37 38 #if defined(HAVE_ARM_NE10) 39 /** Compute a forward MDCT and scale by 4/N, trashes the input array */ 40 void clt_mdct_forward_neon(const mdct_lookup *l, kiss_fft_scalar *in, 41 kiss_fft_scalar * OPUS_RESTRICT out, 42 const opus_val16 *window, int overlap, 43 int shift, int stride, int arch); 44 45 void clt_mdct_backward_neon(const mdct_lookup *l, kiss_fft_scalar *in, 46 kiss_fft_scalar * OPUS_RESTRICT out, 47 const opus_val16 *window, int overlap, 48 int shift, int stride, int arch); 49 50 #if !defined(OPUS_HAVE_RTCD) 51 #define OVERRIDE_OPUS_MDCT (1) 52 #define clt_mdct_forward(_l, _in, _out, _window, _int, _shift, _stride, _arch) \ 53 clt_mdct_forward_neon(_l, _in, _out, _window, _int, _shift, _stride, _arch) 54 #define clt_mdct_backward(_l, _in, _out, _window, _int, _shift, _stride, _arch) \ 55 clt_mdct_backward_neon(_l, _in, _out, _window, _int, _shift, _stride, _arch) 56 #endif /* OPUS_HAVE_RTCD */ 57 #endif /* HAVE_ARM_NE10 */ 58 59 #endif 60