/***********************************************************************
Copyright (C) 2014 Vidyo
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modification, are permitted provided that the following conditions
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- Redistributions of source code must retain the above copyright notice,
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names of specific contributors, may be used to endorse or promote
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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***********************************************************************/
#ifndef SILK_NSQ_NEON_H
#define SILK_NSQ_NEON_H

#include "cpu_support.h"
#include "SigProc_FIX.h"

#undef silk_short_prediction_create_arch_coef
/* For vectorized calc, reverse a_Q12 coefs, convert to 32-bit, and shift for vqdmulhq_s32. */
static OPUS_INLINE void silk_short_prediction_create_arch_coef_neon(opus_int32 *out, const opus_int16 *in, opus_int order)
{
    out[15] = silk_LSHIFT32(in[0], 15);
    out[14] = silk_LSHIFT32(in[1], 15);
    out[13] = silk_LSHIFT32(in[2], 15);
    out[12] = silk_LSHIFT32(in[3], 15);
    out[11] = silk_LSHIFT32(in[4], 15);
    out[10] = silk_LSHIFT32(in[5], 15);
    out[9]  = silk_LSHIFT32(in[6], 15);
    out[8]  = silk_LSHIFT32(in[7], 15);
    out[7]  = silk_LSHIFT32(in[8], 15);
    out[6]  = silk_LSHIFT32(in[9], 15);

    if (order == 16)
    {
        out[5] = silk_LSHIFT32(in[10], 15);
        out[4] = silk_LSHIFT32(in[11], 15);
        out[3] = silk_LSHIFT32(in[12], 15);
        out[2] = silk_LSHIFT32(in[13], 15);
        out[1] = silk_LSHIFT32(in[14], 15);
        out[0] = silk_LSHIFT32(in[15], 15);
    }
    else
    {
        out[5] = 0;
        out[4] = 0;
        out[3] = 0;
        out[2] = 0;
        out[1] = 0;
        out[0] = 0;
    }
}

#if defined(OPUS_ARM_PRESUME_NEON_INTR)

#define silk_short_prediction_create_arch_coef(out, in, order) \
    (silk_short_prediction_create_arch_coef_neon(out, in, order))

#elif defined(OPUS_HAVE_RTCD) && defined(OPUS_ARM_MAY_HAVE_NEON_INTR)

#define silk_short_prediction_create_arch_coef(out, in, order) \
    do { if (arch == OPUS_ARCH_ARM_NEON) { silk_short_prediction_create_arch_coef_neon(out, in, order); } } while (0)

#endif

opus_int32 silk_noise_shape_quantizer_short_prediction_neon(const opus_int32 *buf32, const opus_int32 *coef32, opus_int order);

opus_int32 silk_NSQ_noise_shape_feedback_loop_neon(const opus_int32 *data0, opus_int32 *data1, const opus_int16 *coef, opus_int order);

#if defined(OPUS_ARM_PRESUME_NEON_INTR)
#undef silk_noise_shape_quantizer_short_prediction
#define silk_noise_shape_quantizer_short_prediction(in, coef, coefRev, order, arch) \
    ((void)arch,silk_noise_shape_quantizer_short_prediction_neon(in, coefRev, order))

#undef silk_NSQ_noise_shape_feedback_loop
#define silk_NSQ_noise_shape_feedback_loop(data0, data1, coef, order, arch)  ((void)arch,silk_NSQ_noise_shape_feedback_loop_neon(data0, data1, coef, order))

#elif defined(OPUS_HAVE_RTCD) && defined(OPUS_ARM_MAY_HAVE_NEON_INTR)

/* silk_noise_shape_quantizer_short_prediction implementations take different parameters based on arch
   (coef vs. coefRev) so can't use the usual IMPL table implementation */
#undef silk_noise_shape_quantizer_short_prediction
#define silk_noise_shape_quantizer_short_prediction(in, coef, coefRev, order, arch)  \
    (arch == OPUS_ARCH_ARM_NEON ? \
        silk_noise_shape_quantizer_short_prediction_neon(in, coefRev, order) : \
        silk_noise_shape_quantizer_short_prediction_c(in, coef, order))

extern opus_int32
 (*const SILK_NSQ_NOISE_SHAPE_FEEDBACK_LOOP_IMPL[OPUS_ARCHMASK+1])(
 const opus_int32 *data0, opus_int32 *data1, const opus_int16 *coef,
 opus_int order);

#undef silk_NSQ_noise_shape_feedback_loop
#define silk_NSQ_noise_shape_feedback_loop(data0, data1, coef, order, arch) \
 (SILK_NSQ_NOISE_SHAPE_FEEDBACK_LOOP_IMPL[(arch)&OPUS_ARCHMASK](data0, data1, \
 coef, order))

#endif

#endif /* SILK_NSQ_NEON_H */