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author | Zuxy Meng <zuxy.meng@gmail.com> | 2007-05-18 08:18:56 +0000 |
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committer | Zuxy Meng <zuxy.meng@gmail.com> | 2007-05-18 08:18:56 +0000 |
commit | 038bfcf9d63b36a8e110e5166bffaaaec1bbb769 (patch) | |
tree | f5cffd48f0367ac53f3f6245b87d24bb4d66580d /libavcodec/i386/dsputil_mmx_qns.h | |
parent | 2c32b173d96934b2d455ef5cfe68024bd6df2998 (diff) | |
download | ffmpeg-038bfcf9d63b36a8e110e5166bffaaaec1bbb769.tar.gz |
3DNow! and SSSE3 optimization to QNS DSP functions; use pmulhrw/pmulhrsw instead of pmulhw
Originally committed as revision 9053 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/i386/dsputil_mmx_qns.h')
-rw-r--r-- | libavcodec/i386/dsputil_mmx_qns.h | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/libavcodec/i386/dsputil_mmx_qns.h b/libavcodec/i386/dsputil_mmx_qns.h new file mode 100644 index 0000000000..d0030d8036 --- /dev/null +++ b/libavcodec/i386/dsputil_mmx_qns.h @@ -0,0 +1,102 @@ +/* + * DSP utils : QNS functions are compiled 3 times for mmx/3dnow/ssse3 + * Copyright (c) 2004 Michael Niedermayer + * + * 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 + * + * MMX optimization by Michael Niedermayer <michaelni@gmx.at> + * 3DNow! and SSSE3 optimization by Zuxy Meng <zuxy.meng@gmail.com> + */ + +#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) +{ + long 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) +{ + long 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); + } + } +} + |