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      1 /* Copyright (c) 2010 Xiph.Org Foundation
      2  * Copyright (c) 2013 Parrot */
      3 /*
      4    Redistribution and use in source and binary forms, with or without
      5    modification, are permitted provided that the following conditions
      6    are met:
      7 
      8    - Redistributions of source code must retain the above copyright
      9    notice, this list of conditions and the following disclaimer.
     10 
     11    - Redistributions in binary form must reproduce the above copyright
     12    notice, this list of conditions and the following disclaimer in the
     13    documentation and/or other materials provided with the distribution.
     14 
     15    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     16    ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     17    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     18    A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
     19    OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
     20    EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     21    PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     22    PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
     23    LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
     24    NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
     25    SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     26 */
     27 
     28 #ifdef HAVE_CONFIG_H
     29 #include "config.h"
     30 #endif
     31 
     32 #include "pitch.h"
     33 #include "kiss_fft.h"
     34 #include "mdct.h"
     35 
     36 #if defined(OPUS_HAVE_RTCD)
     37 
     38 # if defined(OPUS_ARM_MAY_HAVE_NEON_INTR) && !defined(OPUS_ARM_PRESUME_NEON_INTR)
     39 opus_val32 (*const CELT_INNER_PROD_IMPL[OPUS_ARCHMASK+1])(const opus_val16 *x, const opus_val16 *y, int N) = {
     40   celt_inner_prod_c,   /* ARMv4 */
     41   celt_inner_prod_c,   /* EDSP */
     42   celt_inner_prod_c,   /* Media */
     43   celt_inner_prod_neon /* NEON */
     44 };
     45 
     46 void (*const DUAL_INNER_PROD_IMPL[OPUS_ARCHMASK+1])(const opus_val16 *x, const opus_val16 *y01, const opus_val16 *y02,
     47       int N, opus_val32 *xy1, opus_val32 *xy2) = {
     48   dual_inner_prod_c,   /* ARMv4 */
     49   dual_inner_prod_c,   /* EDSP */
     50   dual_inner_prod_c,   /* Media */
     51   dual_inner_prod_neon /* NEON */
     52 };
     53 # endif
     54 
     55 # if defined(FIXED_POINT)
     56 #  if ((defined(OPUS_ARM_MAY_HAVE_NEON) && !defined(OPUS_ARM_PRESUME_NEON)) || \
     57     (defined(OPUS_ARM_MAY_HAVE_MEDIA) && !defined(OPUS_ARM_PRESUME_MEDIA)) || \
     58     (defined(OPUS_ARM_MAY_HAVE_EDSP) && !defined(OPUS_ARM_PRESUME_EDSP)))
     59 opus_val32 (*const CELT_PITCH_XCORR_IMPL[OPUS_ARCHMASK+1])(const opus_val16 *,
     60     const opus_val16 *, opus_val32 *, int, int, int) = {
     61   celt_pitch_xcorr_c,               /* ARMv4 */
     62   MAY_HAVE_EDSP(celt_pitch_xcorr),  /* EDSP */
     63   MAY_HAVE_MEDIA(celt_pitch_xcorr), /* Media */
     64   MAY_HAVE_NEON(celt_pitch_xcorr)   /* NEON */
     65 };
     66 
     67 #  endif
     68 # else /* !FIXED_POINT */
     69 #  if defined(OPUS_ARM_MAY_HAVE_NEON_INTR) && !defined(OPUS_ARM_PRESUME_NEON_INTR)
     70 void (*const CELT_PITCH_XCORR_IMPL[OPUS_ARCHMASK+1])(const opus_val16 *,
     71     const opus_val16 *, opus_val32 *, int, int, int) = {
     72   celt_pitch_xcorr_c,              /* ARMv4 */
     73   celt_pitch_xcorr_c,              /* EDSP */
     74   celt_pitch_xcorr_c,              /* Media */
     75   celt_pitch_xcorr_float_neon      /* Neon */
     76 };
     77 #  endif
     78 # endif /* FIXED_POINT */
     79 
     80 #if defined(FIXED_POINT) && defined(OPUS_HAVE_RTCD) && \
     81  defined(OPUS_ARM_MAY_HAVE_NEON_INTR) && !defined(OPUS_ARM_PRESUME_NEON_INTR)
     82 
     83 void (*const XCORR_KERNEL_IMPL[OPUS_ARCHMASK + 1])(
     84          const opus_val16 *x,
     85          const opus_val16 *y,
     86          opus_val32       sum[4],
     87          int              len
     88 ) = {
     89   xcorr_kernel_c,                /* ARMv4 */
     90   xcorr_kernel_c,                /* EDSP */
     91   xcorr_kernel_c,                /* Media */
     92   xcorr_kernel_neon_fixed,       /* Neon */
     93 };
     94 
     95 #endif
     96 
     97 # if defined(OPUS_ARM_MAY_HAVE_NEON_INTR)
     98 #  if defined(HAVE_ARM_NE10)
     99 #   if defined(CUSTOM_MODES)
    100 int (*const OPUS_FFT_ALLOC_ARCH_IMPL[OPUS_ARCHMASK+1])(kiss_fft_state *st) = {
    101    opus_fft_alloc_arch_c,        /* ARMv4 */
    102    opus_fft_alloc_arch_c,        /* EDSP */
    103    opus_fft_alloc_arch_c,        /* Media */
    104    opus_fft_alloc_arm_neon       /* Neon with NE10 library support */
    105 };
    106 
    107 void (*const OPUS_FFT_FREE_ARCH_IMPL[OPUS_ARCHMASK+1])(kiss_fft_state *st) = {
    108    opus_fft_free_arch_c,         /* ARMv4 */
    109    opus_fft_free_arch_c,         /* EDSP */
    110    opus_fft_free_arch_c,         /* Media */
    111    opus_fft_free_arm_neon        /* Neon with NE10 */
    112 };
    113 #   endif /* CUSTOM_MODES */
    114 
    115 void (*const OPUS_FFT[OPUS_ARCHMASK+1])(const kiss_fft_state *cfg,
    116                                         const kiss_fft_cpx *fin,
    117                                         kiss_fft_cpx *fout) = {
    118    opus_fft_c,                   /* ARMv4 */
    119    opus_fft_c,                   /* EDSP */
    120    opus_fft_c,                   /* Media */
    121    opus_fft_neon                 /* Neon with NE10 */
    122 };
    123 
    124 void (*const OPUS_IFFT[OPUS_ARCHMASK+1])(const kiss_fft_state *cfg,
    125                                          const kiss_fft_cpx *fin,
    126                                          kiss_fft_cpx *fout) = {
    127    opus_ifft_c,                   /* ARMv4 */
    128    opus_ifft_c,                   /* EDSP */
    129    opus_ifft_c,                   /* Media */
    130    opus_ifft_neon                 /* Neon with NE10 */
    131 };
    132 
    133 void (*const CLT_MDCT_FORWARD_IMPL[OPUS_ARCHMASK+1])(const mdct_lookup *l,
    134                                                      kiss_fft_scalar *in,
    135                                                      kiss_fft_scalar * OPUS_RESTRICT out,
    136                                                      const opus_val16 *window,
    137                                                      int overlap, int shift,
    138                                                      int stride, int arch) = {
    139    clt_mdct_forward_c,           /* ARMv4 */
    140    clt_mdct_forward_c,           /* EDSP */
    141    clt_mdct_forward_c,           /* Media */
    142    clt_mdct_forward_neon         /* Neon with NE10 */
    143 };
    144 
    145 void (*const CLT_MDCT_BACKWARD_IMPL[OPUS_ARCHMASK+1])(const mdct_lookup *l,
    146                                                       kiss_fft_scalar *in,
    147                                                       kiss_fft_scalar * OPUS_RESTRICT out,
    148                                                       const opus_val16 *window,
    149                                                       int overlap, int shift,
    150                                                       int stride, int arch) = {
    151    clt_mdct_backward_c,           /* ARMv4 */
    152    clt_mdct_backward_c,           /* EDSP */
    153    clt_mdct_backward_c,           /* Media */
    154    clt_mdct_backward_neon         /* Neon with NE10 */
    155 };
    156 
    157 #  endif /* HAVE_ARM_NE10 */
    158 # endif /* OPUS_ARM_MAY_HAVE_NEON_INTR */
    159 
    160 #endif /* OPUS_HAVE_RTCD */
    161