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
|
/*
* DSP utils : QNS functions are compiled 3 times for mmx/3dnow/ssse3
* Copyright (c) 2004 Michael Niedermayer
*
* MMX optimization by Michael Niedermayer <michaelni@gmx.at>
* 3DNow! and SSSE3 optimization by Zuxy Meng <zuxy.meng@gmail.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
*/
#define MAX_ABS (512 >> (SCALE_OFFSET>0 ? SCALE_OFFSET : 0))
static int DEF(try_8x8basis)(int16_t rem[64], int16_t weight[64], int16_t basis[64], int scale)
{
x86_reg i=0;
assert(FFABS(scale) < MAX_ABS);
scale<<= 16 + SCALE_OFFSET - BASIS_SHIFT + RECON_SHIFT;
SET_RND(mm6);
__asm__ volatile(
"pxor %%mm7, %%mm7 \n\t"
"movd %4, %%mm5 \n\t"
"punpcklwd %%mm5, %%mm5 \n\t"
"punpcklwd %%mm5, %%mm5 \n\t"
ASMALIGN(4)
"1: \n\t"
"movq (%1, %0), %%mm0 \n\t"
"movq 8(%1, %0), %%mm1 \n\t"
PMULHRW(%%mm0, %%mm1, %%mm5, %%mm6)
"paddw (%2, %0), %%mm0 \n\t"
"paddw 8(%2, %0), %%mm1 \n\t"
"psraw $6, %%mm0 \n\t"
"psraw $6, %%mm1 \n\t"
"pmullw (%3, %0), %%mm0 \n\t"
"pmullw 8(%3, %0), %%mm1 \n\t"
"pmaddwd %%mm0, %%mm0 \n\t"
"pmaddwd %%mm1, %%mm1 \n\t"
"paddd %%mm1, %%mm0 \n\t"
"psrld $4, %%mm0 \n\t"
"paddd %%mm0, %%mm7 \n\t"
"add $16, %0 \n\t"
"cmp $128, %0 \n\t" //FIXME optimize & bench
" jb 1b \n\t"
PHADDD(%%mm7, %%mm6)
"psrld $2, %%mm7 \n\t"
"movd %%mm7, %0 \n\t"
: "+r" (i)
: "r"(basis), "r"(rem), "r"(weight), "g"(scale)
);
return i;
}
static void DEF(add_8x8basis)(int16_t rem[64], int16_t basis[64], int scale)
{
x86_reg i=0;
if(FFABS(scale) < MAX_ABS){
scale<<= 16 + SCALE_OFFSET - BASIS_SHIFT + RECON_SHIFT;
SET_RND(mm6);
__asm__ volatile(
"movd %3, %%mm5 \n\t"
"punpcklwd %%mm5, %%mm5 \n\t"
"punpcklwd %%mm5, %%mm5 \n\t"
ASMALIGN(4)
"1: \n\t"
"movq (%1, %0), %%mm0 \n\t"
"movq 8(%1, %0), %%mm1 \n\t"
PMULHRW(%%mm0, %%mm1, %%mm5, %%mm6)
"paddw (%2, %0), %%mm0 \n\t"
"paddw 8(%2, %0), %%mm1 \n\t"
"movq %%mm0, (%2, %0) \n\t"
"movq %%mm1, 8(%2, %0) \n\t"
"add $16, %0 \n\t"
"cmp $128, %0 \n\t" // FIXME optimize & bench
" jb 1b \n\t"
: "+r" (i)
: "r"(basis), "r"(rem), "g"(scale)
);
}else{
for(i=0; i<8*8; i++){
rem[i] += (basis[i]*scale + (1<<(BASIS_SHIFT - RECON_SHIFT-1)))>>(BASIS_SHIFT - RECON_SHIFT);
}
}
}
|
