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
|
/*
* Copyright (c) 2005 Zoltan Hidvegi <hzoli -a- hzoli -d- com>
*
* 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
*/
/**
* MMX optimized version of (put|avg)_h264_chroma_mc8.
* H264_CHROMA_MC8_TMPL must be defined to the desired function name and
* H264_CHROMA_OP must be defined to empty for put and pavgb/pavgusb for avg.
*/
static void H264_CHROMA_MC8_TMPL(uint8_t *dst/*align 8*/, uint8_t *src/*align 1*/, int stride, int h, int x, int y)
{
uint64_t AA __align8;
uint64_t DD __align8;
unsigned long srcos = (long)src & 7;
uint64_t sh1 __align8 = srcos * 8;
uint64_t sh2 __align8 = 56 - sh1;
int i;
assert(x<8 && y<8 && x>=0 && y>=0);
asm volatile("movd %1, %%mm4\n\t"
"movd %2, %%mm6\n\t"
"punpcklwd %%mm4, %%mm4\n\t"
"punpcklwd %%mm6, %%mm6\n\t"
"punpckldq %%mm4, %%mm4\n\t" /* mm4 = x words */
"punpckldq %%mm6, %%mm6\n\t" /* mm6 = y words */
"movq %%mm4, %%mm5\n\t"
"pmullw %%mm6, %%mm4\n\t" /* mm4 = x * y */
"psllw $3, %%mm5\n\t"
"psllw $3, %%mm6\n\t"
"movq %%mm5, %%mm7\n\t"
"paddw %%mm6, %%mm7\n\t"
"movq %%mm4, %0\n\t" /* DD = x * y */
"psubw %%mm4, %%mm5\n\t" /* mm5 = B = 8x - xy */
"psubw %%mm4, %%mm6\n\t" /* mm6 = C = 8y - xy */
"paddw %3, %%mm4\n\t"
"psubw %%mm7, %%mm4\n\t" /* mm4 = A = xy - (8x+8y) + 64 */
"pxor %%mm7, %%mm7\n\t"
: "=m" (DD) : "rm" (x), "rm" (y), "m" (ff_pw_64));
asm volatile("movq %%mm4, %0" : "=m" (AA));
src -= srcos;
asm volatile(
/* mm0 = src[0..7], mm1 = src[1..8] */
"movq %0, %%mm1\n\t"
"movq %1, %%mm0\n\t"
"psrlq %2, %%mm1\n\t"
"psllq %3, %%mm0\n\t"
"movq %%mm0, %%mm4\n\t"
"psllq $8, %%mm0\n\t"
"por %%mm1, %%mm0\n\t"
"psrlq $8, %%mm1\n\t"
"por %%mm4, %%mm1\n\t"
: : "m" (src[0]), "m" (src[8]), "m" (sh1), "m" (sh2));
for(i=0; i<h; i++) {
asm volatile(
/* [mm2,mm3] = A * src[0..7] */
"movq %%mm0, %%mm2\n\t"
"punpcklbw %%mm7, %%mm2\n\t"
"pmullw %0, %%mm2\n\t"
"movq %%mm0, %%mm3\n\t"
"punpckhbw %%mm7, %%mm3\n\t"
"pmullw %0, %%mm3\n\t"
/* [mm2,mm3] += B * src[1..8] */
"movq %%mm1, %%mm0\n\t"
"punpcklbw %%mm7, %%mm0\n\t"
"pmullw %%mm5, %%mm0\n\t"
"punpckhbw %%mm7, %%mm1\n\t"
"pmullw %%mm5, %%mm1\n\t"
"paddw %%mm0, %%mm2\n\t"
"paddw %%mm1, %%mm3\n\t"
: : "m" (AA));
src += stride;
asm volatile(
/* mm0 = src[0..7], mm1 = src[1..8] */
"movq %0, %%mm1\n\t"
"movq %1, %%mm0\n\t"
"psrlq %2, %%mm1\n\t"
"psllq %3, %%mm0\n\t"
"movq %%mm0, %%mm4\n\t"
"psllq $8, %%mm0\n\t"
"por %%mm1, %%mm0\n\t"
"psrlq $8, %%mm1\n\t"
"por %%mm4, %%mm1\n\t"
: : "m" (src[0]), "m" (src[8]), "m" (sh1), "m" (sh2));
asm volatile(
/* [mm2,mm3] += C * src[0..7] */
"movq %mm0, %mm4\n\t"
"punpcklbw %mm7, %mm4\n\t"
"pmullw %mm6, %mm4\n\t"
"paddw %mm4, %mm2\n\t"
"movq %mm0, %mm4\n\t"
"punpckhbw %mm7, %mm4\n\t"
"pmullw %mm6, %mm4\n\t"
"paddw %mm4, %mm3\n\t");
asm volatile(
/* [mm2,mm3] += D * src[1..8] */
"movq %%mm1, %%mm4\n\t"
"punpcklbw %%mm7, %%mm4\n\t"
"pmullw %0, %%mm4\n\t"
"paddw %%mm4, %%mm2\n\t"
"movq %%mm1, %%mm4\n\t"
"punpckhbw %%mm7, %%mm4\n\t"
"pmullw %0, %%mm4\n\t"
"paddw %%mm4, %%mm3\n\t"
: : "m" (DD));
asm volatile(
/* dst[0..7] = pack(([mm2,mm3] + 32) >> 6) */
"paddw %1, %%mm2\n\t"
"paddw %1, %%mm3\n\t"
"psrlw $6, %%mm2\n\t"
"psrlw $6, %%mm3\n\t"
"packuswb %%mm3, %%mm2\n\t"
H264_CHROMA_OP(%0, %%mm2)
"movq %%mm2, %0\n\t"
: "=m" (dst[0]) : "m" (ff_pw_32));
dst+= stride;
}
}
|
