aboutsummaryrefslogtreecommitdiffstats
path: root/libavcodec/ps2/dsputil_mmi.c
blob: 4190f9da10481694fa6512539f4f7a4e503feca1 (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
162
163
164
165
166
/*
 * MMI optimized DSP utils
 * Copyright (c) 2000, 2001 Fabrice Bellard
 *
 * MMI optimization by Leon van Stuivenberg
 * clear_blocks_mmi() by BroadQ
 *
 * 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 "libavcodec/dsputil.h"
#include "mmi.h"

void ff_mmi_idct_put(uint8_t *dest, int line_size, DCTELEM *block);
void ff_mmi_idct_add(uint8_t *dest, int line_size, DCTELEM *block);
void ff_mmi_idct(DCTELEM *block);

static void clear_blocks_mmi(DCTELEM * blocks)
{
        __asm__ volatile(
        ".set noreorder    \n"
        "addiu $9, %0, 768 \n"
        "nop               \n"
        "1:                \n"
        "sq $0, 0(%0)      \n"
        "move $8, %0       \n"
        "addi %0, %0, 64   \n"
        "sq $0, 16($8)     \n"
        "slt $10, %0, $9   \n"
        "sq $0, 32($8)     \n"
        "bnez $10, 1b      \n"
        "sq $0, 48($8)     \n"
        ".set reorder      \n"
        : "+r" (blocks) ::  "$8", "$9", "memory" );
}


static void get_pixels_mmi(DCTELEM *block, const uint8_t *pixels, int line_size)
{
        __asm__ volatile(
        ".set   push            \n\t"
        ".set   mips3           \n\t"
        "ld     $8, 0(%0)       \n\t"
        "add    %0, %0, %2      \n\t"
        "ld     $9, 0(%0)       \n\t"
        "add    %0, %0, %2      \n\t"
        "ld     $10, 0(%0)      \n\t"
        "pextlb $8, $0, $8      \n\t"
        "sq     $8, 0(%1)       \n\t"
        "add    %0, %0, %2      \n\t"
        "ld     $8, 0(%0)       \n\t"
        "pextlb $9, $0, $9      \n\t"
        "sq     $9, 16(%1)      \n\t"
        "add    %0, %0, %2      \n\t"
        "ld     $9, 0(%0)       \n\t"
        "pextlb $10, $0, $10    \n\t"
        "sq     $10, 32(%1)     \n\t"
        "add    %0, %0, %2      \n\t"
        "ld     $10, 0(%0)      \n\t"
        "pextlb $8, $0, $8      \n\t"
        "sq     $8, 48(%1)      \n\t"
        "add    %0, %0, %2      \n\t"
        "ld     $8, 0(%0)       \n\t"
        "pextlb $9, $0, $9      \n\t"
        "sq     $9, 64(%1)      \n\t"
        "add    %0, %0, %2      \n\t"
        "ld     $9, 0(%0)       \n\t"
        "pextlb $10, $0, $10    \n\t"
        "sq     $10, 80(%1)     \n\t"
        "pextlb $8, $0, $8      \n\t"
        "sq     $8, 96(%1)      \n\t"
        "pextlb $9, $0, $9      \n\t"
        "sq     $9, 112(%1)     \n\t"
        ".set   pop             \n\t"
        : "+r" (pixels) : "r" (block), "r" (line_size) : "$8", "$9", "$10", "memory" );
}


static void put_pixels8_mmi(uint8_t *block, const uint8_t *pixels, int line_size, int h)
{
        __asm__ volatile(
        ".set   push            \n\t"
        ".set   mips3           \n\t"
        "1:                     \n\t"
        "ldr    $8, 0(%1)       \n\t"
        "addiu  %2, %2, -1      \n\t"
        "ldl    $8, 7(%1)       \n\t"
        "add    %1, %1, %3      \n\t"
        "sd     $8, 0(%0)       \n\t"
        "add    %0, %0, %3      \n\t"
        "bgtz   %2, 1b          \n\t"
        ".set   pop             \n\t"
        : "+r" (block), "+r" (pixels), "+r" (h) : "r" (line_size)
        : "$8", "memory" );
}


static void put_pixels16_mmi(uint8_t *block, const uint8_t *pixels, int line_size, int h)
{
        __asm__ volatile (
        ".set   push            \n\t"
        ".set   mips3           \n\t"
        "1:                     \n\t"
        "ldr    $8, 0(%1)       \n\t"
        "add    $11, %1, %3     \n\t"
        "ldl    $8, 7(%1)       \n\t"
        "add    $10, %0, %3     \n\t"
        "ldr    $9, 8(%1)       \n\t"
        "ldl    $9, 15(%1)      \n\t"
        "ldr    $12, 0($11)     \n\t"
        "add    %1, $11, %3     \n\t"
        "ldl    $12, 7($11)     \n\t"
        "pcpyld $8, $9, $8      \n\t"
        "sq     $8, 0(%0)       \n\t"
        "ldr    $13, 8($11)     \n\t"
        "addiu  %2, %2, -2      \n\t"
        "ldl    $13, 15($11)    \n\t"
        "add    %0, $10, %3     \n\t"
        "pcpyld $12, $13, $12   \n\t"
        "sq     $12, 0($10)     \n\t"
        "bgtz   %2, 1b          \n\t"
        ".set   pop             \n\t"
        : "+r" (block), "+r" (pixels), "+r" (h) : "r" (line_size)
        : "$8", "$9", "$10", "$11", "$12", "$13", "memory" );
}


void dsputil_init_mmi(DSPContext* c, AVCodecContext *avctx)
{
    const int idct_algo= avctx->idct_algo;
    const int h264_high_depth = avctx->codec_id == CODEC_ID_H264 && avctx->bits_per_raw_sample > 8;

    if (!h264_high_depth) {
    c->clear_blocks = clear_blocks_mmi;

    c->put_pixels_tab[1][0] = put_pixels8_mmi;
    c->put_no_rnd_pixels_tab[1][0] = put_pixels8_mmi;

    c->put_pixels_tab[0][0] = put_pixels16_mmi;
    c->put_no_rnd_pixels_tab[0][0] = put_pixels16_mmi;
    }

    c->get_pixels = get_pixels_mmi;

    if(idct_algo==FF_IDCT_AUTO || idct_algo==FF_IDCT_PS2){
        c->idct_put= ff_mmi_idct_put;
        c->idct_add= ff_mmi_idct_add;
        c->idct    = ff_mmi_idct;
        c->idct_permutation_type= FF_LIBMPEG2_IDCT_PERM;
    }
}