/*

 * Monkey's Audio lossless audio decoder

 * Copyright (c) 2007 Benjamin Zores <ben@geexbox.org>

 *  based upon libdemac from Dave Chapman.

 *

 * 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

 */

#include "config.h"

#include "libavutil/attributes.h"

#include "lossless_audiodsp.h"

static int32_t scalarproduct_and_madd_int16_c(int16_t *v1, const int16_t *v2,

                                              const int16_t *v3,

                                              int order, int mul)

{

    unsigned res = 0;

    do {

        res   += *v1 * *v2++;

        *v1++ += mul * *v3++;

        res   += *v1 * *v2++;

        *v1++ += mul * *v3++;

    } while (order-=2);

    return res;

}

static int32_t scalarproduct_and_madd_int32_c(int16_t *v1, const int32_t *v2,

                                              const int16_t *v3,

                                              int order, int mul)

{

    int res = 0;

    do {

        res   += *v1 * (uint32_t)*v2++;

        *v1++ += mul * *v3++;

        res   += *v1 * (uint32_t)*v2++;

        *v1++ += mul * *v3++;

    } while (order-=2);

    return res;

}

av_cold void ff_llauddsp_init(LLAudDSPContext *c)

{

    c->scalarproduct_and_madd_int16 = scalarproduct_and_madd_int16_c;

    c->scalarproduct_and_madd_int32 = scalarproduct_and_madd_int32_c;

#if ARCH_ARM

    ff_llauddsp_init_arm(c);

#elif ARCH_RISCV

    ff_llauddsp_init_riscv(c);

#elif ARCH_X86 && HAVE_X86ASM

    ff_llauddsp_init_x86(c);

#endif

}