From 150c9823e71a161e97003849cf8b2f55b21520bd Mon Sep 17 00:00:00 2001 From: Tim Redfern Date: Mon, 26 Aug 2013 15:10:18 +0100 Subject: adding ffmpeg specific version --- ffmpeg1/libavcodec/x86/dsputil_qns_template.c | 101 ++++++++++++++++++++++++++ 1 file changed, 101 insertions(+) create mode 100644 ffmpeg1/libavcodec/x86/dsputil_qns_template.c (limited to 'ffmpeg1/libavcodec/x86/dsputil_qns_template.c') diff --git a/ffmpeg1/libavcodec/x86/dsputil_qns_template.c b/ffmpeg1/libavcodec/x86/dsputil_qns_template.c new file mode 100644 index 0000000..77a41b9 --- /dev/null +++ b/ffmpeg1/libavcodec/x86/dsputil_qns_template.c @@ -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 + * 3DNow! and SSSE3 optimization by Zuxy Meng + * + * 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" + ".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); + } + } +} -- cgit v1.2.3