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/*

 * VP9 SIMD optimizations

 *

 * Copyright (c) 2013 Ronald S. Bultje 

 *

 * 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/cpu.h"

#include "libavutil/mem.h"

#include "libavutil/x86/asm.h"

#include "libavcodec/vp9dsp.h"

#if HAVE_YASM

#define fpel_func(avg, sz, opt) \

void ff_##avg##sz##_##opt(uint8_t *dst, ptrdiff_t dst_stride, \

                          const uint8_t *src, ptrdiff_t src_stride, \

                          int h, int mx, int my)

fpel_func(put,  4, mmx);

fpel_func(put,  8, mmx);

fpel_func(put, 16, sse);

fpel_func(put, 32, sse);

fpel_func(put, 64, sse);

fpel_func(avg,  4, sse);

fpel_func(avg,  8, sse);

fpel_func(avg, 16, sse2);

fpel_func(avg, 32, sse2);

fpel_func(avg, 64, sse2);

#undef fpel_func

#define mc_func(avg, sz, dir, opt) \

void ff_##avg##_8tap_1d_##dir##_##sz##_##opt(uint8_t *dst, ptrdiff_t dst_stride, \

                                             const uint8_t *src, ptrdiff_t src_stride, \

                                             int h, const int8_t (*filter)[16])

#define mc_funcs(sz) \

mc_func(put, sz, h, ssse3); \

mc_func(avg, sz, h, ssse3); \

mc_func(put, sz, v, ssse3); \

mc_func(avg, sz, v, ssse3)

mc_funcs(4);

mc_funcs(8);

#undef mc_funcs

#undef mc_func

#define mc_rep_func(avg, sz, hsz, dir, opt) \

static av_always_inline void \

ff_##avg##_8tap_1d_##dir##_##sz##_##opt(uint8_t *dst, ptrdiff_t dst_stride, \

                                        const uint8_t *src, ptrdiff_t src_stride, \

                                        int h, const int8_t (*filter)[16]) \

{ \

    ff_##avg##_8tap_1d_##dir##_##hsz##_##opt(dst,       dst_stride, src, \

                                             src_stride, h, filter); \

    ff_##avg##_8tap_1d_##dir##_##hsz##_##opt(dst + hsz, dst_stride, src + hsz, \

                                             src_stride, h, filter); \

}

#define mc_rep_funcs(sz, hsz) \

mc_rep_func(put, sz, hsz, h, ssse3); \

mc_rep_func(avg, sz, hsz, h, ssse3); \

mc_rep_func(put, sz, hsz, v, ssse3); \

mc_rep_func(avg, sz, hsz, v, ssse3)

mc_rep_funcs(16, 8);

mc_rep_funcs(32, 16);

mc_rep_funcs(64, 32);

#undef mc_rep_funcs

#undef mc_rep_func

extern const int8_t ff_filters_ssse3[3][15][4][16];

#define filter_8tap_2d_fn(op, sz, f, fname) \

static void op##_8tap_##fname##_##sz##hv_ssse3(uint8_t *dst, ptrdiff_t dst_stride, \

                                               const uint8_t *src, ptrdiff_t src_stride, \

                                               int h, int mx, int my) \

{ \

    LOCAL_ALIGNED_16(uint8_t, temp, [71 * 64]); \

    ff_put_8tap_1d_h_##sz##_ssse3(temp, 64, src - 3 * src_stride, src_stride, \

                                  h + 7, ff_filters_ssse3[f][mx - 1]); \

    ff_##op##_8tap_1d_v_##sz##_ssse3(dst, dst_stride, temp + 3 * 64, 64, \

                                     h, ff_filters_ssse3[f][my - 1]); \

}

#define filters_8tap_2d_fn(op, sz) \

filter_8tap_2d_fn(op, sz, FILTER_8TAP_REGULAR, regular) \

filter_8tap_2d_fn(op, sz, FILTER_8TAP_SHARP,   sharp) \

filter_8tap_2d_fn(op, sz, FILTER_8TAP_SMOOTH,  smooth)

#define filters_8tap_2d_fn2(op) \

filters_8tap_2d_fn(op, 64) \

filters_8tap_2d_fn(op, 32) \

filters_8tap_2d_fn(op, 16) \

filters_8tap_2d_fn(op, 8) \

filters_8tap_2d_fn(op, 4)

filters_8tap_2d_fn2(put)

filters_8tap_2d_fn2(avg)

#undef filters_8tap_2d_fn2

#undef filters_8tap_2d_fn

#undef filter_8tap_2d_fn

#define filter_8tap_1d_fn(op, sz, f, fname, dir, dvar) \

static void op##_8tap_##fname##_##sz##dir##_ssse3(uint8_t *dst, ptrdiff_t dst_stride, \

                                                  const uint8_t *src, ptrdiff_t src_stride, \

                                                  int h, int mx, int my) \

{ \

    ff_##op##_8tap_1d_##dir##_##sz##_ssse3(dst, dst_stride, src, src_stride, \

                                           h, ff_filters_ssse3[f][dvar - 1]); \

}

#define filters_8tap_1d_fn(op, sz, dir, dvar) \

filter_8tap_1d_fn(op, sz, FILTER_8TAP_REGULAR, regular, dir, dvar) \

filter_8tap_1d_fn(op, sz, FILTER_8TAP_SHARP,   sharp,   dir, dvar) \

filter_8tap_1d_fn(op, sz, FILTER_8TAP_SMOOTH,  smooth,  dir, dvar)

#define filters_8tap_1d_fn2(op, sz) \

filters_8tap_1d_fn(op, sz, h, mx) \

filters_8tap_1d_fn(op, sz, v, my)

#define filters_8tap_1d_fn3(op) \

filters_8tap_1d_fn2(op, 64) \

filters_8tap_1d_fn2(op, 32) \

filters_8tap_1d_fn2(op, 16) \

filters_8tap_1d_fn2(op, 8) \

filters_8tap_1d_fn2(op, 4)

filters_8tap_1d_fn3(put)

filters_8tap_1d_fn3(avg)

#undef filters_8tap_1d_fn

#undef filters_8tap_1d_fn2

#undef filters_8tap_1d_fn3

#undef filter_8tap_1d_fn

#endif /* HAVE_YASM */

av_cold void ff_vp9dsp_init_x86(VP9DSPContext *dsp)

{

#if HAVE_YASM

    int cpu_flags = av_get_cpu_flags();

#define init_fpel(idx1, idx2, sz, type, opt) \

    dsp->mc[idx1][FILTER_8TAP_SMOOTH ][idx2][0][0] = \

    dsp->mc[idx1][FILTER_8TAP_REGULAR][idx2][0][0] = \

    dsp->mc[idx1][FILTER_8TAP_SHARP  ][idx2][0][0] = \

    dsp->mc[idx1][FILTER_BILINEAR    ][idx2][0][0] = ff_##type##sz##_##opt

#define init_subpel1(idx1, idx2, idxh, idxv, sz, dir, type, opt) \

    dsp->mc[idx1][FILTER_8TAP_SMOOTH ][idx2][idxh][idxv] = type##_8tap_smooth_##sz##dir##_##opt; \

    dsp->mc[idx1][FILTER_8TAP_REGULAR][idx2][idxh][idxv] = type##_8tap_regular_##sz##dir##_##opt; \

    dsp->mc[idx1][FILTER_8TAP_SHARP  ][idx2][idxh][idxv] = type##_8tap_sharp_##sz##dir##_##opt

#define init_subpel2(idx, idxh, idxv, dir, type, opt) \

    init_subpel1(0, idx, idxh, idxv, 64, dir, type, opt); \

    init_subpel1(1, idx, idxh, idxv, 32, dir, type, opt); \

    init_subpel1(2, idx, idxh, idxv, 16, dir, type, opt); \

    init_subpel1(3, idx, idxh, idxv,  8, dir, type, opt); \

    init_subpel1(4, idx, idxh, idxv,  4, dir, type, opt)

#define init_subpel3(idx, type, opt) \

    init_subpel2(idx, 1, 1, hv, type, opt); \

    init_subpel2(idx, 0, 1, v, type, opt); \

    init_subpel2(idx, 1, 0, h, type, opt)

    if (cpu_flags & AV_CPU_FLAG_MMX) {

        init_fpel(4, 0,  4, put, mmx);

        init_fpel(3, 0,  8, put, mmx);

    }

    if (cpu_flags & AV_CPU_FLAG_SSE) {

        init_fpel(2, 0, 16, put, sse);

        init_fpel(1, 0, 32, put, sse);

        init_fpel(0, 0, 64, put, sse);

        init_fpel(4, 1,  4, avg, sse);

        init_fpel(3, 1,  8, avg, sse);

    }

    if (cpu_flags & AV_CPU_FLAG_SSE2) {

        init_fpel(2, 1, 16, avg, sse2);

        init_fpel(1, 1, 32, avg, sse2);

        init_fpel(0, 1, 64, avg, sse2);

    }

    if (cpu_flags & AV_CPU_FLAG_SSSE3) {

        init_subpel3(0, put, ssse3);

        init_subpel3(1, avg, ssse3);

    }

#undef init_fpel

#undef init_subpel1

#undef init_subpel2

#undef init_subpel3

#endif /* HAVE_YASM */

}