mirror of
https://github.com/FFmpeg/FFmpeg.git
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154 lines
6.5 KiB
C
154 lines
6.5 KiB
C
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/*
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* MIPS SIMD optimized H.264 deblocking code
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*
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* Copyright (c) 2020 Loongson Technology Corporation Limited
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* Gu Xiwei <guxiwei-hf@loongson.cn>
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "libavcodec/bit_depth_template.c"
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#include "h264dsp_mips.h"
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#include "libavutil/mips/generic_macros_msa.h"
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#include "libavcodec/mips/h264dsp_mips.h"
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#define h264_loop_filter_strength_iteration_msa(edges, step, mask_mv, dir, \
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d_idx, mask_dir) \
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do { \
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int b_idx = 0; \
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int step_x4 = step << 2; \
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int d_idx_12 = d_idx + 12; \
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int d_idx_52 = d_idx + 52; \
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int d_idx_x4 = d_idx << 2; \
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int d_idx_x4_48 = d_idx_x4 + 48; \
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int dir_x32 = dir * 32; \
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uint8_t *ref_t = (uint8_t*)ref; \
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uint8_t *mv_t = (uint8_t*)mv; \
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uint8_t *nnz_t = (uint8_t*)nnz; \
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uint8_t *bS_t = (uint8_t*)bS; \
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mask_mv <<= 3; \
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for (; b_idx < edges; b_idx += step) { \
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out &= mask_dir; \
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if (!(mask_mv & b_idx)) { \
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if (bidir) { \
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ref_2 = LD_SB(ref_t + d_idx_12); \
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ref_3 = LD_SB(ref_t + d_idx_52); \
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ref_0 = LD_SB(ref_t + 12); \
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ref_1 = LD_SB(ref_t + 52); \
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ref_2 = (v16i8)__msa_ilvr_w((v4i32)ref_3, (v4i32)ref_2); \
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ref_0 = (v16i8)__msa_ilvr_w((v4i32)ref_0, (v4i32)ref_0); \
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ref_1 = (v16i8)__msa_ilvr_w((v4i32)ref_1, (v4i32)ref_1); \
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ref_3 = (v16i8)__msa_shf_h((v8i16)ref_2, 0x4e); \
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ref_0 -= ref_2; \
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ref_1 -= ref_3; \
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ref_0 = (v16i8)__msa_or_v((v16u8)ref_0, (v16u8)ref_1); \
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\
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tmp_2 = LD_SH(mv_t + d_idx_x4_48); \
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tmp_3 = LD_SH(mv_t + 48); \
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tmp_4 = LD_SH(mv_t + 208); \
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tmp_5 = tmp_2 - tmp_3; \
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tmp_6 = tmp_2 - tmp_4; \
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SAT_SH2_SH(tmp_5, tmp_6, 7); \
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tmp_0 = __msa_pckev_b((v16i8)tmp_6, (v16i8)tmp_5); \
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tmp_0 += cnst_1; \
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tmp_0 = (v16i8)__msa_subs_u_b((v16u8)tmp_0, (v16u8)cnst_0);\
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tmp_0 = (v16i8)__msa_sat_s_h((v8i16)tmp_0, 7); \
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tmp_0 = __msa_pckev_b(tmp_0, tmp_0); \
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out = (v16i8)__msa_or_v((v16u8)ref_0, (v16u8)tmp_0); \
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\
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tmp_2 = LD_SH(mv_t + 208 + d_idx_x4); \
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tmp_5 = tmp_2 - tmp_3; \
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tmp_6 = tmp_2 - tmp_4; \
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SAT_SH2_SH(tmp_5, tmp_6, 7); \
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tmp_1 = __msa_pckev_b((v16i8)tmp_6, (v16i8)tmp_5); \
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tmp_1 += cnst_1; \
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tmp_1 = (v16i8)__msa_subs_u_b((v16u8)tmp_1, (v16u8)cnst_0); \
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tmp_1 = (v16i8)__msa_sat_s_h((v8i16)tmp_1, 7); \
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tmp_1 = __msa_pckev_b(tmp_1, tmp_1); \
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\
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tmp_1 = (v16i8)__msa_shf_h((v8i16)tmp_1, 0x4e); \
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out = (v16i8)__msa_or_v((v16u8)out, (v16u8)tmp_1); \
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tmp_0 = (v16i8)__msa_shf_h((v8i16)out, 0x4e); \
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out = (v16i8)__msa_min_u_b((v16u8)out, (v16u8)tmp_0); \
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} else { \
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ref_0 = LD_SB(ref_t + d_idx_12); \
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ref_3 = LD_SB(ref_t + 12); \
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tmp_2 = LD_SH(mv_t + d_idx_x4_48); \
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tmp_3 = LD_SH(mv_t + 48); \
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tmp_4 = tmp_3 - tmp_2; \
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tmp_1 = (v16i8)__msa_sat_s_h(tmp_4, 7); \
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tmp_1 = __msa_pckev_b(tmp_1, tmp_1); \
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tmp_1 += cnst_1; \
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out = (v16i8)__msa_subs_u_b((v16u8)tmp_1, (v16u8)cnst_0); \
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out = (v16i8)__msa_sat_s_h((v8i16)out, 7); \
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out = __msa_pckev_b(out, out); \
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ref_0 = ref_3 - ref_0; \
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out = (v16i8)__msa_or_v((v16u8)out, (v16u8)ref_0); \
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} \
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} \
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tmp_0 = LD_SB(nnz_t + 12); \
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tmp_1 = LD_SB(nnz_t + d_idx_12); \
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tmp_0 = (v16i8)__msa_or_v((v16u8)tmp_0, (v16u8)tmp_1); \
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tmp_0 = (v16i8)__msa_min_u_b((v16u8)tmp_0, (v16u8)cnst_2); \
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out = (v16i8)__msa_min_u_b((v16u8)out, (v16u8)cnst_2); \
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tmp_0 = (v16i8)((v8i16)tmp_0 << 1); \
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tmp_0 = (v16i8)__msa_max_u_b((v16u8)out, (v16u8)tmp_0); \
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tmp_0 = __msa_ilvr_b(zero, tmp_0); \
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ST_D1(tmp_0, 0, bS_t + dir_x32); \
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ref_t += step; \
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mv_t += step_x4; \
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nnz_t += step; \
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bS_t += step; \
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} \
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} while(0)
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void ff_h264_loop_filter_strength_msa(int16_t bS[2][4][4], uint8_t nnz[40],
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int8_t ref[2][40], int16_t mv[2][40][2],
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int bidir, int edges, int step,
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int mask_mv0, int mask_mv1, int field)
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{
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v16i8 out;
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v16i8 ref_0, ref_1, ref_2, ref_3;
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v16i8 tmp_0, tmp_1;
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v8i16 tmp_2, tmp_3, tmp_4, tmp_5, tmp_6;
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v16i8 cnst_0, cnst_1, cnst_2;
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v16i8 zero = { 0 };
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v16i8 one = __msa_fill_b(0xff);
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if (field) {
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cnst_0 = (v16i8)__msa_fill_h(0x206);
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cnst_1 = (v16i8)__msa_fill_h(0x103);
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cnst_2 = (v16i8)__msa_fill_h(0x101);
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} else {
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cnst_0 = __msa_fill_b(0x6);
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cnst_1 = __msa_fill_b(0x3);
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cnst_2 = __msa_fill_b(0x1);
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}
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step <<= 3;
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edges <<= 3;
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h264_loop_filter_strength_iteration_msa(edges, step, mask_mv1, 1, -8, zero);
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h264_loop_filter_strength_iteration_msa(32, 8, mask_mv0, 0, -1, one);
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LD_SB2((int8_t*)bS, 16, tmp_0, tmp_1);
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tmp_2 = (v8i16)__msa_ilvl_d((v2i64)tmp_0, (v2i64)tmp_0);
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tmp_3 = (v8i16)__msa_ilvl_d((v2i64)tmp_1, (v2i64)tmp_1);
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TRANSPOSE4x4_SH_SH(tmp_0, tmp_2, tmp_1, tmp_3, tmp_2, tmp_3, tmp_4, tmp_5);
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tmp_0 = (v16i8)__msa_ilvr_d((v2i64)tmp_3, (v2i64)tmp_2);
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tmp_1 = (v16i8)__msa_ilvr_d((v2i64)tmp_5, (v2i64)tmp_4);
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ST_SB2(tmp_0, tmp_1, (int8_t*)bS, 16);
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}
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