jpeg2000dsp_init.c

Go to the documentation of this file.

/*
 * SIMD optimized JPEG 2000 DSP functions
 * Copyright (c) 2015 James Almer
 *
 * 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 "libavutil/attributes.h"
#include "libavutil/cpu.h"
#include "libavutil/x86/cpu.h"
#include "libavcodec/jpeg2000dsp.h"

void ff_ict_float_sse(void *src0, void *src1, void *src2, int csize);
void ff_ict_float_avx(void *src0, void *src1, void *src2, int csize);
void ff_ict_float_fma3(void *src0, void *src1, void *src2, int csize);
void ff_ict_float_fma4(void *src0, void *src1, void *src2, int csize);
void ff_rct_int_sse2 (void *src0, void *src1, void *src2, int csize);
void ff_rct_int_avx2 (void *src0, void *src1, void *src2, int csize);

av_cold void ff_jpeg2000dsp_init_x86(Jpeg2000DSPContext *c)
{
    int cpu_flags = av_get_cpu_flags();
    if (EXTERNAL_SSE(cpu_flags)) {
        c->mct_decode[FF_DWT97] = ff_ict_float_sse;
    }

    if (EXTERNAL_SSE2(cpu_flags)) {
        c->mct_decode[FF_DWT53] = ff_rct_int_sse2;
    }

    if (EXTERNAL_AVX_FAST(cpu_flags)) {
        c->mct_decode[FF_DWT97] = ff_ict_float_avx;
    }

    if (EXTERNAL_FMA4(cpu_flags)) {
        c->mct_decode[FF_DWT97] = ff_ict_float_fma4;
    }

    if (EXTERNAL_FMA3_FAST(cpu_flags)) {
        c->mct_decode[FF_DWT97] = ff_ict_float_fma3;
    }

    if (EXTERNAL_AVX2_FAST(cpu_flags)) {
        c->mct_decode[FF_DWT53] = ff_rct_int_avx2;
    }
}