0,0 → 1,101 |
/* |
* 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; |
|
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], 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); |
} |
} |
} |