aboutsummaryrefslogtreecommitdiffstats
path: root/libavcodec/mips/h263dsp_msa.c
blob: 2e1ca0183d650274388419856658de5e7dca03a8 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
/*
 * Copyright (c) 2015 Manojkumar Bhosale (Manojkumar.Bhosale@imgtec.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/mips/generic_macros_msa.h"
#include "h263dsp_mips.h"

static const uint8_t h263_loop_filter_strength_msa[32] = {
    0, 1, 1, 2, 2, 3, 3, 4, 4, 4, 5, 5, 6, 6, 7, 7,
    7, 8, 8, 8, 9, 9, 9, 10, 10, 10, 11, 11, 11, 12, 12, 12
};

static void h263_h_loop_filter_msa(uint8_t *src, int32_t stride, int32_t qscale)
{
    int32_t strength = h263_loop_filter_strength_msa[qscale];
    v16u8 in0, in1, in2, in3, in4, in5, in6, in7;
    v8i16 temp0, temp1, temp2;
    v8i16 diff0, diff2, diff4, diff6, diff8;
    v8i16 d0, a_d0, str_x2, str;

    src -= 2;
    LD_UB8(src, stride, in0, in1, in2, in3, in4, in5, in6, in7);
    TRANSPOSE8x4_UB_UB(in0, in1, in2, in3, in4, in5, in6, in7,
                       in0, in3, in2, in1);

    temp0 = (v8i16) __msa_ilvr_b((v16i8) in0, (v16i8) in1);
    a_d0 = __msa_hsub_u_h((v16u8) temp0, (v16u8) temp0);
    temp2 = (v8i16) __msa_ilvr_b((v16i8) in2, (v16i8) in3);
    temp2 = __msa_hsub_u_h((v16u8) temp2, (v16u8) temp2);
    temp2 <<= 2;
    diff0 = a_d0 + temp2;
    diff2 = -(-diff0 >> 3);
    str_x2 = __msa_fill_h(-(strength << 1));
    temp0 = (str_x2 <= diff2);
    diff2 = (v8i16) __msa_bmz_v((v16u8) diff2, (v16u8) temp0, (v16u8) temp0);
    temp2 = str_x2 - diff2;
    str = __msa_fill_h(-strength);
    temp0 = (diff2 < str);
    diff2 = (v8i16) __msa_bmnz_v((v16u8) diff2, (v16u8) temp2, (v16u8) temp0);
    diff4 = diff0 >> 3;
    str_x2 = __msa_fill_h(strength << 1);
    temp0 = (diff4 <= str_x2);
    diff4 = (v8i16) __msa_bmz_v((v16u8) diff4, (v16u8) temp0, (v16u8) temp0);
    temp2 = str_x2 - diff4;
    str = __msa_fill_h(strength);
    temp0 = (str < diff4);
    diff4 = (v8i16) __msa_bmnz_v((v16u8) diff4, (v16u8) temp2, (v16u8) temp0);
    temp0 = __msa_clti_s_h(diff0, 0);
    d0 = (v8i16) __msa_bmnz_v((v16u8) diff4, (v16u8) diff2, (v16u8) temp0);
    diff2 = -diff2 >> 1;
    diff4 >>= 1;
    diff8 = (v8i16) __msa_bmnz_v((v16u8) diff4, (v16u8) diff2, (v16u8) temp0);
    diff6 = (-a_d0) >> 2;
    diff6 = -(diff6);
    temp2 = -diff8;
    temp0 = (diff6 < temp2);
    diff6 = (v8i16) __msa_bmnz_v((v16u8) diff6, (v16u8) temp2, (v16u8) temp0);
    diff2 = a_d0 >> 2;
    temp0 = (diff2 <= diff8);
    diff2 = (v8i16) __msa_bmz_v((v16u8) diff2, (v16u8) diff8, (v16u8) temp0);
    temp0 = __msa_clti_s_h(a_d0, 0);
    diff6 = (v8i16) __msa_bmz_v((v16u8) diff6, (v16u8) diff2, (v16u8) temp0);
    PCKEV_B2_SH(a_d0, diff6, a_d0, d0, diff6, d0);
    in0 = (v16u8) ((v16i8) in0 - (v16i8) diff6);
    in1 = (v16u8) ((v16i8) in1 + (v16i8) diff6);
    in3 = __msa_xori_b(in3, 128);
    in3 = (v16u8) __msa_adds_s_b((v16i8) in3, (v16i8) d0);
    in3 = __msa_xori_b(in3, 128);
    in2 = __msa_subsus_u_b(in2, (v16i8) d0);
    ILVR_B2_SH(in3, in0, in1, in2, temp0, temp1);
    in0 = (v16u8) __msa_ilvr_h(temp1, temp0);
    in3 = (v16u8) __msa_ilvl_h(temp1, temp0);
    ST_W8(in0, in3, 0, 1, 2, 3, 0, 1, 2, 3, src, stride);
}

static void h263_v_loop_filter_msa(uint8_t *src, int32_t stride, int32_t qscale)
{
    int32_t strength = h263_loop_filter_strength_msa[qscale];
    uint64_t res0, res1, res2, res3;
    v16u8 in0, in1, in2, in3;
    v8i16 temp0, temp2, diff0, diff2, diff4, diff6, diff8;
    v8i16 d0, a_d0, str_x2, str;

    src -= 2 * stride;
    LD_UB4(src, stride, in0, in3, in2, in1);
    temp0 = (v8i16) __msa_ilvr_b((v16i8) in0, (v16i8) in1);
    a_d0 = __msa_hsub_u_h((v16u8) temp0, (v16u8) temp0);
    temp2 = (v8i16) __msa_ilvr_b((v16i8) in2, (v16i8) in3);
    temp2 = __msa_hsub_u_h((v16u8) temp2, (v16u8) temp2);
    temp2 <<= 2;
    diff0 = a_d0 + temp2;
    diff2 = -(-diff0 >> 3);
    str_x2 = __msa_fill_h(-(strength << 1));
    temp0 = (str_x2 <= diff2);
    diff2 = (v8i16) __msa_bmz_v((v16u8) diff2, (v16u8) temp0, (v16u8) temp0);
    temp2 = str_x2 - diff2;
    str = __msa_fill_h(-strength);
    temp0 = (diff2 < str);
    diff2 = (v8i16) __msa_bmnz_v((v16u8) diff2, (v16u8) temp2, (v16u8) temp0);
    diff4 = diff0 >> 3;
    str_x2 = __msa_fill_h(strength << 1);
    temp0 = (diff4 <= str_x2);
    diff4 = (v8i16) __msa_bmz_v((v16u8) diff4, (v16u8) temp0, (v16u8) temp0);
    temp2 = str_x2 - diff4;
    str = __msa_fill_h(strength);
    temp0 = (str < diff4);
    diff4 = (v8i16) __msa_bmnz_v((v16u8) diff4, (v16u8) temp2, (v16u8) temp0);
    temp0 = __msa_clti_s_h(diff0, 0);
    d0 = (v8i16) __msa_bmnz_v((v16u8) diff4, (v16u8) diff2, (v16u8) temp0);
    diff2 = -diff2 >> 1;
    diff4 >>= 1;
    diff8 = (v8i16) __msa_bmnz_v((v16u8) diff4, (v16u8) diff2, (v16u8) temp0);
    diff6 = (-a_d0) >> 2;
    diff6 = -(diff6);
    temp2 = -diff8;
    temp0 = (diff6 < temp2);
    diff6 = (v8i16) __msa_bmnz_v((v16u8) diff6, (v16u8) temp2, (v16u8) temp0);
    diff2 = a_d0 >> 2;
    temp0 = (diff2 <= diff8);
    diff2 = (v8i16) __msa_bmz_v((v16u8) diff2, (v16u8) diff8, (v16u8) temp0);
    temp0 = __msa_clti_s_h(a_d0, 0);
    diff6 = (v8i16) __msa_bmz_v((v16u8) diff6, (v16u8) diff2, (v16u8) temp0);
    PCKEV_B2_SH(a_d0, diff6, a_d0, d0, diff6, d0);
    in0 = (v16u8) ((v16i8) in0 - (v16i8) diff6);
    in1 = (v16u8) ((v16i8) in1 + (v16i8) diff6);
    in3 = __msa_xori_b(in3, 128);
    in3 = (v16u8) __msa_adds_s_b((v16i8) in3, (v16i8) d0);
    in3 = __msa_xori_b(in3, 128);
    in2 = __msa_subsus_u_b(in2, (v16i8) d0);
    res0 = __msa_copy_u_d((v2i64) in0, 0);
    res1 = __msa_copy_u_d((v2i64) in3, 0);
    res2 = __msa_copy_u_d((v2i64) in2, 0);
    res3 = __msa_copy_u_d((v2i64) in1, 0);
    SD4(res0, res1, res2, res3, src, stride);
}

void ff_h263_h_loop_filter_msa(uint8_t *src, int32_t stride, int32_t q_scale)
{
    h263_h_loop_filter_msa(src, stride, q_scale);
}

void ff_h263_v_loop_filter_msa(uint8_t *src, int32_t stride, int32_t q_scale)
{
    h263_v_loop_filter_msa(src, stride, q_scale);
}