/*

 * VP9 SIMD optimizations

 *

 * Copyright (c) 2013 Ronald S. Bultje <rsbultje gmail com>

 *

 * 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/vp9dsp.h"

#include "libavcodec/x86/vp9dsp_init.h"

#if HAVE_X86ASM

decl_fpel_func(put,  4,   , mmx);

decl_fpel_func(put,  8,   , mmx);

decl_fpel_func(put, 16,   , sse);

decl_fpel_func(put, 32,   , sse);

decl_fpel_func(put, 64,   , sse);

decl_fpel_func(avg,  4, _8, mmxext);

decl_fpel_func(avg,  8, _8, mmxext);

decl_fpel_func(avg, 16, _8, sse2);

decl_fpel_func(avg, 32, _8, sse2);

decl_fpel_func(avg, 64, _8, sse2);

decl_fpel_func(put, 32,   , avx);

decl_fpel_func(put, 64,   , avx);

decl_fpel_func(avg, 32, _8, avx2);

decl_fpel_func(avg, 64, _8, avx2);

decl_mc_funcs(4, mmxext, int16_t, 8, 8);

decl_mc_funcs(8, sse2, int16_t,  8, 8);

decl_mc_funcs(4, ssse3, int8_t, 32, 8);

decl_mc_funcs(8, ssse3, int8_t, 32, 8);

#if ARCH_X86_64

decl_mc_funcs(16, ssse3, int8_t, 32, 8);

decl_mc_funcs(32, avx2, int8_t, 32, 8);

#endif

mc_rep_funcs(16,  8,  8,  sse2, int16_t,  8, 8)

#if ARCH_X86_32

mc_rep_funcs(16,  8,  8, ssse3, int8_t,  32, 8)

#endif

mc_rep_funcs(32, 16, 16, sse2,  int16_t,  8, 8)

mc_rep_funcs(32, 16, 16, ssse3, int8_t,  32, 8)

mc_rep_funcs(64, 32, 32, sse2,  int16_t,  8, 8)

mc_rep_funcs(64, 32, 32, ssse3, int8_t,  32, 8)

#if ARCH_X86_64 && HAVE_AVX2_EXTERNAL

mc_rep_funcs(64, 32, 32, avx2,  int8_t,  32, 8)

#endif

extern const int8_t ff_filters_ssse3[3][15][4][32];

extern const int16_t ff_filters_sse2[3][15][8][8];

filters_8tap_2d_fn2(put, 16, 8, 1, mmxext, sse2, sse2)

filters_8tap_2d_fn2(avg, 16, 8, 1, mmxext, sse2, sse2)

filters_8tap_2d_fn2(put, 16, 8, 1, ssse3, ssse3, ssse3)

filters_8tap_2d_fn2(avg, 16, 8, 1, ssse3, ssse3, ssse3)

#if ARCH_X86_64 && HAVE_AVX2_EXTERNAL

filters_8tap_2d_fn(put, 64, 32, 8, 1, avx2, ssse3)

filters_8tap_2d_fn(put, 32, 32, 8, 1, avx2, ssse3)

filters_8tap_2d_fn(avg, 64, 32, 8, 1, avx2, ssse3)

filters_8tap_2d_fn(avg, 32, 32, 8, 1, avx2, ssse3)

#endif

filters_8tap_1d_fn3(put, 8, mmxext, sse2, sse2)

filters_8tap_1d_fn3(avg, 8, mmxext, sse2, sse2)

filters_8tap_1d_fn3(put, 8, ssse3, ssse3, ssse3)

filters_8tap_1d_fn3(avg, 8, ssse3, ssse3, ssse3)

#if ARCH_X86_64 && HAVE_AVX2_EXTERNAL

filters_8tap_1d_fn2(put, 64, 8, avx2, ssse3)

filters_8tap_1d_fn2(put, 32, 8, avx2, ssse3)

filters_8tap_1d_fn2(avg, 64, 8, avx2, ssse3)

filters_8tap_1d_fn2(avg, 32, 8, avx2, ssse3)

#endif

#define itxfm_func(typea, typeb, size, opt) \

void ff_vp9_##typea##_##typeb##_##size##x##size##_add_##opt(uint8_t *dst, ptrdiff_t stride, \

                                                            int16_t *block, int eob)

#define itxfm_funcs(size, opt) \

itxfm_func(idct,  idct,  size, opt); \

itxfm_func(iadst, idct,  size, opt); \

itxfm_func(idct,  iadst, size, opt); \

itxfm_func(iadst, iadst, size, opt)

itxfm_func(idct,  idct,  4, mmxext);

itxfm_func(idct,  iadst, 4, sse2);

itxfm_func(iadst, idct,  4, sse2);

itxfm_func(iadst, iadst, 4, sse2);

itxfm_funcs(4, ssse3);

itxfm_funcs(8, sse2);

itxfm_funcs(8, ssse3);

itxfm_funcs(8, avx);

itxfm_funcs(16, sse2);

itxfm_funcs(16, ssse3);

itxfm_funcs(16, avx);

itxfm_func(idct, idct, 32, sse2);

itxfm_func(idct, idct, 32, ssse3);

itxfm_func(idct, idct, 32, avx);

itxfm_func(iwht, iwht, 4, mmx);

itxfm_funcs(16, avx2);

itxfm_funcs(16, avx512icl);

itxfm_func(idct, idct, 32, avx2);

itxfm_func(idct, idct, 32, avx512icl);

#undef itxfm_func

#undef itxfm_funcs

#define lpf_funcs(size1, size2, opt) \

void ff_vp9_loop_filter_v_##size1##_##size2##_##opt(uint8_t *dst, ptrdiff_t stride, \

                                                    int E, int I, int H); \

void ff_vp9_loop_filter_h_##size1##_##size2##_##opt(uint8_t *dst, ptrdiff_t stride, \

                                                    int E, int I, int H)

lpf_funcs(4, 8, mmxext);

lpf_funcs(8, 8, mmxext);

lpf_funcs(16, 16, sse2);

lpf_funcs(16, 16, ssse3);

lpf_funcs(16, 16, avx);

lpf_funcs(44, 16, sse2);

lpf_funcs(44, 16, ssse3);

lpf_funcs(44, 16, avx);

lpf_funcs(84, 16, sse2);

lpf_funcs(84, 16, ssse3);

lpf_funcs(84, 16, avx);

lpf_funcs(48, 16, sse2);

lpf_funcs(48, 16, ssse3);

lpf_funcs(48, 16, avx);

lpf_funcs(88, 16, sse2);

lpf_funcs(88, 16, ssse3);

lpf_funcs(88, 16, avx);

#undef lpf_funcs

#define ipred_func(size, type, opt) \

void ff_vp9_ipred_##type##_##size##x##size##_##opt(uint8_t *dst, ptrdiff_t stride, \

                                                   const uint8_t *l, const uint8_t *a)

ipred_func(8, v, mmx);

#define ipred_dc_funcs(size, opt) \

ipred_func(size, dc, opt); \

ipred_func(size, dc_left, opt); \

ipred_func(size, dc_top, opt)

ipred_dc_funcs(4, mmxext);

ipred_dc_funcs(8, mmxext);

#define ipred_dir_tm_funcs(size, opt) \

ipred_func(size, tm, opt); \

ipred_func(size, dl, opt); \

ipred_func(size, dr, opt); \

ipred_func(size, hd, opt); \

ipred_func(size, hu, opt); \

ipred_func(size, vl, opt); \

ipred_func(size, vr, opt)

ipred_dir_tm_funcs(4, mmxext);

ipred_func(16, v, sse);

ipred_func(32, v, sse);

ipred_dc_funcs(16, sse2);

ipred_dc_funcs(32, sse2);

#define ipred_dir_tm_h_funcs(size, opt) \

ipred_dir_tm_funcs(size, opt); \

ipred_func(size, h, opt)

ipred_dir_tm_h_funcs(8, sse2);

ipred_dir_tm_h_funcs(16, sse2);

ipred_dir_tm_h_funcs(32, sse2);

ipred_func(4, h, sse2);

#define ipred_all_funcs(size, opt) \

ipred_dc_funcs(size, opt); \

ipred_dir_tm_h_funcs(size, opt)

// FIXME hd/vl_4x4_ssse3 does not exist

ipred_all_funcs(4, ssse3);

ipred_all_funcs(8, ssse3);

ipred_all_funcs(16, ssse3);

ipred_all_funcs(32, ssse3);

ipred_dir_tm_h_funcs(8, avx);

ipred_dir_tm_h_funcs(16, avx);

ipred_dir_tm_h_funcs(32, avx);

ipred_func(32, v, avx);

ipred_dc_funcs(32, avx2);

ipred_func(32, h, avx2);

ipred_func(32, tm, avx2);

#undef ipred_func

#undef ipred_dir_tm_h_funcs

#undef ipred_dir_tm_funcs

#undef ipred_dc_funcs

#endif /* HAVE_X86ASM */

av_cold void ff_vp9dsp_init_x86(VP9DSPContext *dsp, int bpp, int bitexact)

{

#if HAVE_X86ASM

    int cpu_flags;

    if (bpp == 10) {

        ff_vp9dsp_init_10bpp_x86(dsp, bitexact);

        return;

    } else if (bpp == 12) {

        ff_vp9dsp_init_12bpp_x86(dsp, bitexact);

        return;

    }

    cpu_flags = av_get_cpu_flags();

#define init_lpf(opt) do { \

    dsp->loop_filter_16[0] = ff_vp9_loop_filter_h_16_16_##opt; \

    dsp->loop_filter_16[1] = ff_vp9_loop_filter_v_16_16_##opt; \

    dsp->loop_filter_mix2[0][0][0] = ff_vp9_loop_filter_h_44_16_##opt; \

    dsp->loop_filter_mix2[0][0][1] = ff_vp9_loop_filter_v_44_16_##opt; \

    dsp->loop_filter_mix2[0][1][0] = ff_vp9_loop_filter_h_48_16_##opt; \

    dsp->loop_filter_mix2[0][1][1] = ff_vp9_loop_filter_v_48_16_##opt; \

    dsp->loop_filter_mix2[1][0][0] = ff_vp9_loop_filter_h_84_16_##opt; \

    dsp->loop_filter_mix2[1][0][1] = ff_vp9_loop_filter_v_84_16_##opt; \

    dsp->loop_filter_mix2[1][1][0] = ff_vp9_loop_filter_h_88_16_##opt; \

    dsp->loop_filter_mix2[1][1][1] = ff_vp9_loop_filter_v_88_16_##opt; \

} while (0)

#define init_ipred(sz, opt, t, e) \

    dsp->intra_pred[TX_##sz##X##sz][e##_PRED] = ff_vp9_ipred_##t##_##sz##x##sz##_##opt

#define ff_vp9_ipred_hd_4x4_ssse3 ff_vp9_ipred_hd_4x4_mmxext

#define ff_vp9_ipred_vl_4x4_ssse3 ff_vp9_ipred_vl_4x4_mmxext

#define init_dir_tm_ipred(sz, opt) do { \

    init_ipred(sz, opt, dl, DIAG_DOWN_LEFT); \

    init_ipred(sz, opt, dr, DIAG_DOWN_RIGHT); \

    init_ipred(sz, opt, hd, HOR_DOWN); \

    init_ipred(sz, opt, vl, VERT_LEFT); \

    init_ipred(sz, opt, hu, HOR_UP); \

    init_ipred(sz, opt, tm, TM_VP8); \

    init_ipred(sz, opt, vr, VERT_RIGHT); \

} while (0)

#define init_dir_tm_h_ipred(sz, opt) do { \

    init_dir_tm_ipred(sz, opt); \

    init_ipred(sz, opt, h,  HOR); \

} while (0)

#define init_dc_ipred(sz, opt) do { \

    init_ipred(sz, opt, dc,      DC); \

    init_ipred(sz, opt, dc_left, LEFT_DC); \

    init_ipred(sz, opt, dc_top,  TOP_DC); \

} while (0)

#define init_all_ipred(sz, opt) do { \

    init_dc_ipred(sz, opt); \

    init_dir_tm_h_ipred(sz, opt); \

} while (0)

    if (EXTERNAL_MMX(cpu_flags)) {

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

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

        if (!bitexact) {

            dsp->itxfm_add[4 /* lossless */][DCT_DCT] =

            dsp->itxfm_add[4 /* lossless */][ADST_DCT] =

            dsp->itxfm_add[4 /* lossless */][DCT_ADST] =

            dsp->itxfm_add[4 /* lossless */][ADST_ADST] = ff_vp9_iwht_iwht_4x4_add_mmx;

        }

        init_ipred(8, mmx, v, VERT);

    }

    if (EXTERNAL_MMXEXT(cpu_flags)) {

        dsp->loop_filter_8[0][0] = ff_vp9_loop_filter_h_4_8_mmxext;

        dsp->loop_filter_8[0][1] = ff_vp9_loop_filter_v_4_8_mmxext;

        dsp->loop_filter_8[1][0] = ff_vp9_loop_filter_h_8_8_mmxext;

        dsp->loop_filter_8[1][1] = ff_vp9_loop_filter_v_8_8_mmxext;

        init_subpel2(4, 0, 4, put, 8, mmxext);

        init_subpel2(4, 1, 4, avg, 8, mmxext);

        init_fpel_func(4, 1,  4, avg, _8, mmxext);

        init_fpel_func(3, 1,  8, avg, _8, mmxext);

        dsp->itxfm_add[TX_4X4][DCT_DCT] = ff_vp9_idct_idct_4x4_add_mmxext;

        init_dc_ipred(4, mmxext);

        init_dc_ipred(8, mmxext);

        init_dir_tm_ipred(4, mmxext);

    }

    if (EXTERNAL_SSE(cpu_flags)) {

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

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

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

        init_ipred(16, sse, v, VERT);

        init_ipred(32, sse, v, VERT);

    }

    if (EXTERNAL_SSE2(cpu_flags)) {

        init_subpel3_8to64(0, put, 8, sse2);

        init_subpel3_8to64(1, avg, 8, sse2);

        init_fpel_func(2, 1, 16, avg,  _8, sse2);

        init_fpel_func(1, 1, 32, avg,  _8, sse2);

        init_fpel_func(0, 1, 64, avg,  _8, sse2);

        init_lpf(sse2);

        dsp->itxfm_add[TX_4X4][ADST_DCT]  = ff_vp9_idct_iadst_4x4_add_sse2;

        dsp->itxfm_add[TX_4X4][DCT_ADST]  = ff_vp9_iadst_idct_4x4_add_sse2;

        dsp->itxfm_add[TX_4X4][ADST_ADST] = ff_vp9_iadst_iadst_4x4_add_sse2;

        dsp->itxfm_add[TX_8X8][DCT_DCT] = ff_vp9_idct_idct_8x8_add_sse2;

        dsp->itxfm_add[TX_8X8][ADST_DCT]  = ff_vp9_idct_iadst_8x8_add_sse2;

        dsp->itxfm_add[TX_8X8][DCT_ADST]  = ff_vp9_iadst_idct_8x8_add_sse2;

        dsp->itxfm_add[TX_8X8][ADST_ADST] = ff_vp9_iadst_iadst_8x8_add_sse2;

        dsp->itxfm_add[TX_16X16][DCT_DCT]   = ff_vp9_idct_idct_16x16_add_sse2;

        dsp->itxfm_add[TX_16X16][ADST_DCT]  = ff_vp9_idct_iadst_16x16_add_sse2;

        dsp->itxfm_add[TX_16X16][DCT_ADST]  = ff_vp9_iadst_idct_16x16_add_sse2;

        dsp->itxfm_add[TX_16X16][ADST_ADST] = ff_vp9_iadst_iadst_16x16_add_sse2;

        dsp->itxfm_add[TX_32X32][ADST_ADST] =

        dsp->itxfm_add[TX_32X32][ADST_DCT] =

        dsp->itxfm_add[TX_32X32][DCT_ADST] =

        dsp->itxfm_add[TX_32X32][DCT_DCT] = ff_vp9_idct_idct_32x32_add_sse2;

        init_dc_ipred(16, sse2);

        init_dc_ipred(32, sse2);

        init_dir_tm_h_ipred(8, sse2);

        init_dir_tm_h_ipred(16, sse2);

        init_dir_tm_h_ipred(32, sse2);

        init_ipred(4, sse2, h, HOR);

    }

    if (EXTERNAL_SSSE3(cpu_flags)) {

        init_subpel3(0, put, 8, ssse3);

        init_subpel3(1, avg, 8, ssse3);

        dsp->itxfm_add[TX_4X4][DCT_DCT] = ff_vp9_idct_idct_4x4_add_ssse3;

        dsp->itxfm_add[TX_4X4][ADST_DCT]  = ff_vp9_idct_iadst_4x4_add_ssse3;

        dsp->itxfm_add[TX_4X4][DCT_ADST]  = ff_vp9_iadst_idct_4x4_add_ssse3;

        dsp->itxfm_add[TX_4X4][ADST_ADST] = ff_vp9_iadst_iadst_4x4_add_ssse3;

        dsp->itxfm_add[TX_8X8][DCT_DCT] = ff_vp9_idct_idct_8x8_add_ssse3;

        dsp->itxfm_add[TX_8X8][ADST_DCT]  = ff_vp9_idct_iadst_8x8_add_ssse3;

        dsp->itxfm_add[TX_8X8][DCT_ADST]  = ff_vp9_iadst_idct_8x8_add_ssse3;

        dsp->itxfm_add[TX_8X8][ADST_ADST] = ff_vp9_iadst_iadst_8x8_add_ssse3;

        dsp->itxfm_add[TX_16X16][DCT_DCT]   = ff_vp9_idct_idct_16x16_add_ssse3;

        dsp->itxfm_add[TX_16X16][ADST_DCT]  = ff_vp9_idct_iadst_16x16_add_ssse3;

        dsp->itxfm_add[TX_16X16][DCT_ADST]  = ff_vp9_iadst_idct_16x16_add_ssse3;

        dsp->itxfm_add[TX_16X16][ADST_ADST] = ff_vp9_iadst_iadst_16x16_add_ssse3;

        dsp->itxfm_add[TX_32X32][ADST_ADST] =

        dsp->itxfm_add[TX_32X32][ADST_DCT] =

        dsp->itxfm_add[TX_32X32][DCT_ADST] =

        dsp->itxfm_add[TX_32X32][DCT_DCT] = ff_vp9_idct_idct_32x32_add_ssse3;

        init_lpf(ssse3);

        init_all_ipred(4, ssse3);

        init_all_ipred(8, ssse3);

        init_all_ipred(16, ssse3);

        init_all_ipred(32, ssse3);

    }

    if (EXTERNAL_AVX(cpu_flags)) {

        dsp->itxfm_add[TX_8X8][DCT_DCT] = ff_vp9_idct_idct_8x8_add_avx;

        dsp->itxfm_add[TX_8X8][ADST_DCT]  = ff_vp9_idct_iadst_8x8_add_avx;

        dsp->itxfm_add[TX_8X8][DCT_ADST]  = ff_vp9_iadst_idct_8x8_add_avx;

        dsp->itxfm_add[TX_8X8][ADST_ADST] = ff_vp9_iadst_iadst_8x8_add_avx;

        dsp->itxfm_add[TX_16X16][DCT_DCT] = ff_vp9_idct_idct_16x16_add_avx;

        dsp->itxfm_add[TX_16X16][ADST_DCT]  = ff_vp9_idct_iadst_16x16_add_avx;

        dsp->itxfm_add[TX_16X16][DCT_ADST]  = ff_vp9_iadst_idct_16x16_add_avx;

        dsp->itxfm_add[TX_16X16][ADST_ADST] = ff_vp9_iadst_iadst_16x16_add_avx;

        dsp->itxfm_add[TX_32X32][ADST_ADST] =

        dsp->itxfm_add[TX_32X32][ADST_DCT] =

        dsp->itxfm_add[TX_32X32][DCT_ADST] =

        dsp->itxfm_add[TX_32X32][DCT_DCT] = ff_vp9_idct_idct_32x32_add_avx;

        init_lpf(avx);

        init_dir_tm_h_ipred(8, avx);

        init_dir_tm_h_ipred(16, avx);

        init_dir_tm_h_ipred(32, avx);

    }

    if (EXTERNAL_AVX_FAST(cpu_flags)) {

        init_fpel_func(1, 0, 32, put, , avx);

        init_fpel_func(0, 0, 64, put, , avx);

        init_ipred(32, avx, v, VERT);

    }

    if (EXTERNAL_AVX2_FAST(cpu_flags)) {

        init_fpel_func(1, 1, 32, avg, _8, avx2);

        init_fpel_func(0, 1, 64, avg, _8, avx2);

        if (ARCH_X86_64) {

#if ARCH_X86_64 && HAVE_AVX2_EXTERNAL

            dsp->itxfm_add[TX_16X16][DCT_DCT] = ff_vp9_idct_idct_16x16_add_avx2;

            dsp->itxfm_add[TX_16X16][ADST_DCT]  = ff_vp9_idct_iadst_16x16_add_avx2;

            dsp->itxfm_add[TX_16X16][DCT_ADST]  = ff_vp9_iadst_idct_16x16_add_avx2;

            dsp->itxfm_add[TX_16X16][ADST_ADST] = ff_vp9_iadst_iadst_16x16_add_avx2;

            dsp->itxfm_add[TX_32X32][ADST_ADST] =

            dsp->itxfm_add[TX_32X32][ADST_DCT] =

            dsp->itxfm_add[TX_32X32][DCT_ADST] =

            dsp->itxfm_add[TX_32X32][DCT_DCT] = ff_vp9_idct_idct_32x32_add_avx2;

            init_subpel3_32_64(0, put, 8, avx2);

            init_subpel3_32_64(1, avg, 8, avx2);

#endif

        }

        init_dc_ipred(32, avx2);

        init_ipred(32, avx2, h,  HOR);

        init_ipred(32, avx2, tm, TM_VP8);

    }

#if ARCH_X86_64

    if (EXTERNAL_AVX512ICL(cpu_flags)) {

        dsp->itxfm_add[TX_16X16][DCT_DCT]   = ff_vp9_idct_idct_16x16_add_avx512icl;

        dsp->itxfm_add[TX_16X16][ADST_DCT]  = ff_vp9_idct_iadst_16x16_add_avx512icl;

        dsp->itxfm_add[TX_16X16][DCT_ADST]  = ff_vp9_iadst_idct_16x16_add_avx512icl;

        dsp->itxfm_add[TX_16X16][ADST_ADST] = ff_vp9_iadst_iadst_16x16_add_avx512icl;

        dsp->itxfm_add[TX_32X32][ADST_ADST] =

        dsp->itxfm_add[TX_32X32][ADST_DCT]  =

        dsp->itxfm_add[TX_32X32][DCT_ADST]  =

        dsp->itxfm_add[TX_32X32][DCT_DCT]   = ff_vp9_idct_idct_32x32_add_avx512icl;

    }

#endif

#undef init_fpel

#undef init_subpel1

#undef init_subpel2

#undef init_subpel3

#endif /* HAVE_X86ASM */

}