/*
 * Copyright (c) 2000, 2001, 2002 Fabrice Bellard
 *
 * This file is part of FFmpeg.
 *
 * FFmpeg is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * FFmpeg is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with FFmpeg; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 */

#define TX_FLOAT
#include "libavutil/tx_priv.h"
#include "libavutil/attributes.h"
#include "libavutil/aarch64/cpu.h"

TX_DECL_FN(fft2,      neon)
TX_DECL_FN(fft4_fwd,  neon)
TX_DECL_FN(fft4_inv,  neon)
TX_DECL_FN(fft8,      neon)
TX_DECL_FN(fft8_ns,   neon)
TX_DECL_FN(fft16,     neon)
TX_DECL_FN(fft16_ns,  neon)
TX_DECL_FN(fft32,     neon)
TX_DECL_FN(fft32_ns,  neon)
TX_DECL_FN(fft_sr,    neon)
TX_DECL_FN(fft_sr_ns, neon)

static av_cold int neon_init(AVTXContext *s, const FFTXCodelet *cd,
                             uint64_t flags, FFTXCodeletOptions *opts,
                             int len, int inv, const void *scale)
{
    ff_tx_init_tabs_float(len);
    if (cd->max_len == 2)
        return ff_tx_gen_ptwo_revtab(s, opts);
    else
        return ff_tx_gen_split_radix_parity_revtab(s, len, inv, opts, 8, 0);
}


const FFTXCodelet fft2_1 = {
        .name       = "fft2_float_neon",
        .function   = TX_FN_NAME(fft2, neon),
        .type       = TX_TYPE(FFT),
        .flags      = FF_TX_ALIGNED | FF_TX_OUT_OF_PLACE | AV_TX_INPLACE,
        .factors    = { (2), (0) },
        .nb_factors = !!(2) + !!(0),
        .min_len    = 2,
        .max_len    = 2,
        .init       = NULL,
        .cpu_flags  = 0 | AV_CPU_FLAG_NEON,
        .prio       = 128
};
const FFTXCodelet fft2_536870913 = {
        .name       = "fft2_float_neon",
        .function   = TX_FN_NAME(fft2, neon),
        .type       = TX_TYPE(FFT),
        .flags      = FF_TX_ALIGNED | FF_TX_OUT_OF_PLACE | AV_TX_INPLACE | FF_TX_PRESHUFFLE,
        .factors    = { (2), (0) },
        .nb_factors = !!(2) + !!(0),
        .min_len    = 2,
        .max_len    = 2,
        .init       = neon_init,
        .cpu_flags  = 0 | AV_CPU_FLAG_NEON,
        .prio       = 192
};
const FFTXCodelet fft4_fwd_134217729 = {
        .name       = "fft4_fwd_float_neon",
        .function   = TX_FN_NAME(fft4_fwd, neon),
        .type       = TX_TYPE(FFT),
        .flags      = FF_TX_ALIGNED | FF_TX_OUT_OF_PLACE | AV_TX_INPLACE | FF_TX_FORWARD_ONLY,
        .factors    = { (2), (0) },
        .nb_factors = !!(2) + !!(0),
        .min_len    = 4,
        .max_len    = 4,
        .init       = NULL,
        .cpu_flags  = 0 | AV_CPU_FLAG_NEON,
        .prio       = 128
};
const FFTXCodelet fft4_fwd_536870913 = {
        .name       = "fft4_fwd_float_neon",
        .function   = TX_FN_NAME(fft4_fwd, neon),
        .type       = TX_TYPE(FFT),
        .flags      = FF_TX_ALIGNED | FF_TX_OUT_OF_PLACE | AV_TX_INPLACE | FF_TX_PRESHUFFLE,
        .factors    = { (2), (0) },
        .nb_factors = !!(2) + !!(0),
        .min_len    = 4,
        .max_len    = 4,
        .init       = neon_init,
        .cpu_flags  = 0 | AV_CPU_FLAG_NEON,
        .prio       = 192
};
const FFTXCodelet fft4_inv_268435457 = {
        .name       = "fft4_inv_float_neon",
        .function   = TX_FN_NAME(fft4_inv, neon),
        .type       = TX_TYPE(FFT),
        .flags      = FF_TX_ALIGNED | FF_TX_OUT_OF_PLACE | AV_TX_INPLACE | FF_TX_INVERSE_ONLY,
        .factors    = { (2), (0) },
        .nb_factors = !!(2) + !!(0),
        .min_len    = 4,
        .max_len    = 4,
        .init       = NULL,
        .cpu_flags  = 0 | AV_CPU_FLAG_NEON,
        .prio       = 128
};
const FFTXCodelet fft8_1 = {
        .name       = "fft8_float_neon",
        .function   = TX_FN_NAME(fft8, neon),
        .type       = TX_TYPE(FFT),
        .flags      = FF_TX_ALIGNED | FF_TX_OUT_OF_PLACE | AV_TX_INPLACE,
        .factors    = { (2), (0) },
        .nb_factors = !!(2) + !!(0),
        .min_len    = 8,
        .max_len    = 8,
        .init       = neon_init,
        .cpu_flags  = 0 | AV_CPU_FLAG_NEON,
        .prio       = 128
};
const FFTXCodelet fft8_ns_536870913 = {
        .name       = "fft8_ns_float_neon",
        .function   = TX_FN_NAME(fft8_ns, neon),
        .type       = TX_TYPE(FFT),
        .flags      = FF_TX_ALIGNED | FF_TX_OUT_OF_PLACE | AV_TX_INPLACE | FF_TX_PRESHUFFLE,
        .factors    = { (2), (0) },
        .nb_factors = !!(2) + !!(0),
        .min_len    = 8,
        .max_len    = 8,
        .init       = neon_init,
        .cpu_flags  = 0 | AV_CPU_FLAG_NEON,
        .prio       = 192
};
const FFTXCodelet fft16_1 = {
        .name       = "fft16_float_neon",
        .function   = TX_FN_NAME(fft16, neon),
        .type       = TX_TYPE(FFT),
        .flags      = FF_TX_ALIGNED | FF_TX_OUT_OF_PLACE | AV_TX_INPLACE,
        .factors    = { (2), (0) },
        .nb_factors = !!(2) + !!(0),
        .min_len    = 16,
        .max_len    = 16,
        .init       = neon_init,
        .cpu_flags  = 0 | AV_CPU_FLAG_NEON,
        .prio       = 128
};
const FFTXCodelet fft16_ns_536870913 = {
        .name       = "fft16_ns_float_neon",
        .function   = TX_FN_NAME(fft16_ns, neon),
        .type       = TX_TYPE(FFT),
        .flags      = FF_TX_ALIGNED | FF_TX_OUT_OF_PLACE | AV_TX_INPLACE| FF_TX_PRESHUFFLE,
        .factors    = { (2), (0) },
        .nb_factors = !!(2) + !!(0),
        .min_len    = 16,
        .max_len    = 16,
        .init       = neon_init,
        .cpu_flags  = 0 | AV_CPU_FLAG_NEON,
        .prio       = 192
};
const FFTXCodelet fft32_1 = {
        .name       = "fft32_float_neon",
        .function   = TX_FN_NAME(fft32, neon),
        .type       = TX_TYPE(FFT),
        .flags      = FF_TX_ALIGNED | FF_TX_OUT_OF_PLACE | AV_TX_INPLACE,
        .factors    = { (2), (0) },
        .nb_factors = !!(2) + !!(0),
        .min_len    = 32,
        .max_len    = 32,
        .init       = neon_init,
        .cpu_flags  = 0 | AV_CPU_FLAG_NEON,
        .prio       = 128
};
const FFTXCodelet fft32_ns_536870913 = {
        .name       = "fft32_ns_float_neon",
        .function   = TX_FN_NAME(fft32_ns, neon),
        .type       = TX_TYPE(FFT),
        .flags      = FF_TX_ALIGNED | FF_TX_OUT_OF_PLACE | AV_TX_INPLACE | FF_TX_PRESHUFFLE,
        .factors    = { (2), (0) },
        .nb_factors = !!(2) + !!(0),
        .min_len    = 32,
        .max_len    = 32,
        .init       = neon_init,
        .cpu_flags  = 0 | AV_CPU_FLAG_NEON,
        .prio       = 192
};
const FFTXCodelet fft_sr_0 = {
        .name       = "fft_sr_float_neon",
        .function   = TX_FN_NAME(fft_sr, neon),
        .type       = TX_TYPE(FFT),
        .flags      = FF_TX_ALIGNED | FF_TX_OUT_OF_PLACE,
        .factors    = { (2), (0) },
        .nb_factors = !!(2) + !!(0),
        .min_len    = 64,
        .max_len    = 131072,
        .init       = neon_init,
        .cpu_flags  = 0 | AV_CPU_FLAG_NEON,
        .prio       = 128
};
const FFTXCodelet fft_sr_ns_536870913 = {
        .name       = "fft_sr_ns_float_neon",
        .function   = TX_FN_NAME(fft_sr_ns, neon),
        .type       = TX_TYPE(FFT),
        .flags      = FF_TX_ALIGNED | FF_TX_OUT_OF_PLACE | AV_TX_INPLACE | FF_TX_PRESHUFFLE,
        .factors    = { (2), (0) },
        .nb_factors = !!(2) + !!(0),
        .min_len    = 64,
        .max_len    = 131072,
        .init       = neon_init,
        .cpu_flags  = 0 | AV_CPU_FLAG_NEON,
        .prio       = 192
};

const FFTXCodelet * const ff_tx_codelet_list_float_aarch64[] = {
    &fft2_1,
    //TX_DEF(fft2,      FFT,  2,  2, 2, 0, 128, NULL,      neon, NEON, AV_TX_INPLACE, 0),
    &fft2_536870913,
    //TX_DEF(fft2,      FFT,  2,  2, 2, 0, 192, neon_init, neon, NEON, AV_TX_INPLACE | FF_TX_PRESHUFFLE, 0),
    &fft4_fwd_134217729,
    //TX_DEF(fft4_fwd,  FFT,  4,  4, 2, 0, 128, NULL,      neon, NEON, AV_TX_INPLACE | FF_TX_FORWARD_ONLY, 0),
    &fft4_fwd_536870913,
    //TX_DEF(fft4_fwd,  FFT,  4,  4, 2, 0, 192, neon_init, neon, NEON, AV_TX_INPLACE | FF_TX_PRESHUFFLE, 0),
    &fft4_inv_268435457,
    //TX_DEF(fft4_inv,  FFT,  4,  4, 2, 0, 128, NULL,      neon, NEON, AV_TX_INPLACE | FF_TX_INVERSE_ONLY, 0),
    &fft8_1,
    //TX_DEF(fft8,      FFT,  8,  8, 2, 0, 128, neon_init, neon, NEON, AV_TX_INPLACE, 0),
    &fft8_ns_536870913,
    //TX_DEF(fft8_ns,   FFT,  8,  8, 2, 0, 192, neon_init, neon, NEON, AV_TX_INPLACE | FF_TX_PRESHUFFLE, 0),
    &fft16_1,
    //TX_DEF(fft16,     FFT, 16, 16, 2, 0, 128, neon_init, neon, NEON, AV_TX_INPLACE, 0),
    &fft16_ns_536870913,
    //TX_DEF(fft16_ns,  FFT, 16, 16, 2, 0, 192, neon_init, neon, NEON, AV_TX_INPLACE | FF_TX_PRESHUFFLE, 0),
    &fft32_1,
    //TX_DEF(fft32,     FFT, 32, 32, 2, 0, 128, neon_init, neon, NEON, AV_TX_INPLACE, 0),
    &fft32_ns_536870913,
    //TX_DEF(fft32_ns,  FFT, 32, 32, 2, 0, 192, neon_init, neon, NEON, AV_TX_INPLACE | FF_TX_PRESHUFFLE, 0),
    &fft_sr_0,
    //TX_DEF(fft_sr,    FFT, 64, 131072, 2, 0, 128, neon_init, neon, NEON, 0, 0),
    &fft_sr_ns_536870913,
    //TX_DEF(fft_sr_ns, FFT, 64, 131072, 2, 0, 192, neon_init, neon, NEON, AV_TX_INPLACE | FF_TX_PRESHUFFLE, 0),

    NULL,
};