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author | Michael Niedermayer <michaelni@gmx.at> | 2014-07-07 15:04:05 +0200 |
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committer | Michael Niedermayer <michaelni@gmx.at> | 2014-07-07 15:08:55 +0200 |
commit | 462c6cdb8ed256d2063815b67ca4d14e62e25802 (patch) | |
tree | 324761563d86a2e3e2e8a47dc28e53a407bf8857 /libavcodec/x86/mpegvideoenc_qns_template.c | |
parent | 8324bd51867fdc8a79cbdb5850d36bfd0c741d3f (diff) | |
parent | 8d686ca59db14900ad5c12b547fb8a7afc8b0b94 (diff) | |
download | ffmpeg-462c6cdb8ed256d2063815b67ca4d14e62e25802.tar.gz |
Merge commit '8d686ca59db14900ad5c12b547fb8a7afc8b0b94'
* commit '8d686ca59db14900ad5c12b547fb8a7afc8b0b94':
dsputil: Split off *_8x8basis to a separate context
Conflicts:
libavcodec/dsputil.c
libavcodec/mpegvideo_enc.c
libavcodec/x86/dsputilenc_mmx.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavcodec/x86/mpegvideoenc_qns_template.c')
-rw-r--r-- | libavcodec/x86/mpegvideoenc_qns_template.c | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/libavcodec/x86/mpegvideoenc_qns_template.c b/libavcodec/x86/mpegvideoenc_qns_template.c new file mode 100644 index 0000000000..882d486205 --- /dev/null +++ b/libavcodec/x86/mpegvideoenc_qns_template.c @@ -0,0 +1,109 @@ +/* + * 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)(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); + } + } +} |