mirror of https://github.com/FFmpeg/FFmpeg.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
109 lines
3.9 KiB
109 lines
3.9 KiB
/* |
|
* 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 |
|
*/ |
|
|
|
#include <stdint.h> |
|
|
|
#include "libavutil/avassert.h" |
|
#include "libavutil/common.h" |
|
#include "libavutil/x86/asm.h" |
|
|
|
#include "inline_asm.h" |
|
|
|
#define MAX_ABS (512 >> (SCALE_OFFSET>0 ? SCALE_OFFSET : 0)) |
|
|
|
static int DEF(try_8x8basis)(const int16_t rem[64], const int16_t weight[64], const int16_t basis[64], int scale) |
|
{ |
|
x86_reg i=0; |
|
|
|
av_assert2(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" |
|
".p2align 4 \n\t" |
|
"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], const 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" |
|
".p2align 4 \n\t" |
|
"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); |
|
} |
|
} |
|
}
|
|
|