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
|
/*
* MMI optimized DSP utils
* Copyright (c) 2000, 2001 Fabrice Bellard.
*
* This library 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 of the License, or (at your option) any later version.
*
* This library 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 this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* MMI optimization by Leon van Stuivenberg <leonvs@iae.nl>
*/
#include "../dsputil.h"
#include "mmi.h"
/* the provided 'as' in binutils 2.9EE doesn't support
the EE's mips3 instructions properly */
#define AS_BUGGY
static void clear_blocks_mmi(DCTELEM * blocks)
{
int i;
for (i = 0; i < 6; i++) {
asm volatile(
"sq $0, 0(%0) \n\t"
"sq $0, 16(%0) \n\t"
"sq $0, 32(%0) \n\t"
"sq $0, 48(%0) \n\t"
"sq $0, 64(%0) \n\t"
"sq $0, 80(%0) \n\t"
"sq $0, 96(%0) \n\t"
"sq $0, 112(%0) \n\t" :: "r" (blocks) : "memory" );
blocks += 64;
}
}
static void get_pixels_mmi(DCTELEM *block, const UINT8 *pixels, int line_size)
{
int i;
for(i=0;i<8;i++) {
#ifdef AS_BUGGY
ld3(5, 0, 8);
asm volatile(
"add %1, %1, %2 \n\t"
"pextlb $8, $0, $8 \n\t"
"sq $8, 0(%0) \n\t" :: "r" (block), "r" (pixels), "r" (line_size) : "$8", "memory" );
#else
asm volatile(
"ld $8, 0(%1) \n\t"
"add %1, %1, %2 \n\t"
"pextlb $8, $0, $8 \n\t"
"sq $8, 0(%0) \n\t" :: "r" (block), "r" (pixels), "r" (line_size) : "$8", "memory" );
#endif
block += 8;
}
}
static void put_pixels8_mmi(uint8_t *block, const uint8_t *pixels, int line_size, int h)
{
int i;
for(i=0; i<h; i++) {
#ifdef AS_BUGGY
ldr3(5, 0, 8);
ldl3(5, 7, 8);
asm volatile ( "add $5, $5, $6 \n\t" );
sd3(8, 0, 4);
asm volatile ( "add $4, $4, $6 \n\t" );
#else
asm volatile(
"ldr $8, 0(%1) \n\t"
"ldl $8, 7(%1) \n\t"
"add %1, %1, %2 \n\t"
"sd $8, 0(%0) \n\t"
"add %0, %0, %2 \n\t" :: "r" (block), "r" (pixels), "r" (line_size) : "$8", "memory" );
#endif
}
}
static void put_pixels16_mmi(uint8_t *block, const uint8_t *pixels, int line_size, int h)
{
int i;
for(i=0; i<h; i++) {
#ifdef AS_BUGGY
ldr3(5, 0, 8);
ldl3(5, 7, 8);
ldr3(5, 8, 9);
ldl3(5, 15, 9);
asm volatile ( "add $5, $5, $6 \n\t" );
pcpyld($9, $8, $8);
sq($8, 0, $4);
asm volatile ( "add $4, $4, $6 \n\t" );
#else
asm volatile (
"ldr $8, 0(%1) \n\t"
"ldl $8, 7(%1) \n\t"
"ldr $9, 8(%1) \n\t"
"ldl $9, 15(%1) \n\t"
"add %1, %1, %2 \n\t"
"pcpyld $8, $9, $8 \n\t"
"sq $8, 0(%0) \n\t"
"add %0, %0, %2 \n\t" :: "r" (block), "r" (pixels), "r" (line_size) : "$8", "$9", "memory" );
#endif
}
}
void dsputil_init_mmi(void)
{
clear_blocks = clear_blocks_mmi;
put_pixels_tab[1][0] = put_pixels8_mmi;
put_no_rnd_pixels_tab[1][0] = put_pixels8_mmi;
put_pixels_tab[0][0] = put_pixels16_mmi;
put_no_rnd_pixels_tab[0][0] = put_pixels16_mmi;
get_pixels = get_pixels_mmi;
}
|
