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commit a8d3ae2a7183a8243ebaf3d135915dea8c719371 Author: Andreas Rheinhardt <[email protected]> AuthorDate: Fri Aug 7 02:17:46 2026 +0200 Commit: Andreas Rheinhardt <[email protected]> CommitDate: Sun Aug 9 17:23:00 2026 +0200 avcodec/x86/ttadsp: Reduce number of registers used Reviewed-by: Lynne <[email protected]> Signed-off-by: Andreas Rheinhardt <[email protected]> --- libavcodec/x86/ttadsp.asm | 60 ++++++++++++++++++++++++++--------------------- 1 file changed, 33 insertions(+), 27 deletions(-) diff --git a/libavcodec/x86/ttadsp.asm b/libavcodec/x86/ttadsp.asm index f4b9fa831d..fd98ccab34 100644 --- a/libavcodec/x86/ttadsp.asm +++ b/libavcodec/x86/ttadsp.asm @@ -39,10 +39,15 @@ cglobal tta%3_filter_process, 5,5,%2, qm, dx, dl, error, in, shift, round mova m4, [dxq ] mova m5, [dxq + 0x10] - movd m6, [errorq] ; if (filter->error < 0) { - SPLATD m6 ; for (int i = 0; i < 8; i++) - psignd m0, m4, m6 ; filter->qm[i] -= filter->dx[i]; + movd m1, [errorq] ; if (filter->error < 0) { + SPLATD m1 ; for (int i = 0; i < 8; i++) + psignd m0, m4, m1 ; filter->qm[i] -= filter->dx[i]; +%if avx_enabled + psignd m1, m5, m1 ; } else if (filter->error > 0) { +%else + SWAP 1, 6 psignd m1, m5, m6 ; } else if (filter->error > 0) { +%endif paddd m2, m0 ; for (int i = 0; i < 8; i++) paddd m3, m1 ; filter->qm[i] += filter->dx[i]; mova [qmq ], m2 ; } @@ -54,54 +59,55 @@ cglobal tta%3_filter_process, 5,5,%2, qm, dx, dl, error, in, shift, round %if cpuflag(sse4) pmulld m2, m0 pmulld m3, m1 + palignr m5, m4, 4 ; filter->dx[0] = filter->dx[1]; filter->dx[1] = filter->dx[2]; + ; filter->dx[2] = filter->dx[3]; filter->dx[3] = filter->dx[4]; %else pshufd m6, m0, 0xb1 - pshufd m7, m2, 0xb1 - pmuludq m6, m7 + palignr m5, m4, 4 ; filter->dx[0] = filter->dx[1]; filter->dx[1] = filter->dx[2]; + ; filter->dx[2] = filter->dx[3]; filter->dx[3] = filter->dx[4]; + pshufd m4, m2, 0xb1 + pmuludq m6, m4 pshufd m6, m6, 0xd8 pmuludq m2, m0 pshufd m2, m2, 0xd8 punpckldq m2, m6 pshufd m6, m1, 0xb1 - pshufd m7, m3, 0xb1 - pmuludq m6, m7 + pshufd m4, m3, 0xb1 + pmuludq m6, m4 pshufd m6, m6, 0xd8 pmuludq m3, m1 pshufd m3, m3, 0xd8 punpckldq m3, m6 %endif + movd m4, roundm ; int sum = filter->round + ; Using horizontal add (phaddd) seems to be slower than shuffling stuff around - paddd m2, m3 ; int sum = filter->round + - ; filter->dl[0] * filter->qm[0] + + paddd m2, m3 ; filter->dl[0] * filter->qm[0] + pshufd m3, m2, 0xe ; filter->dl[1] * filter->qm[1] + paddd m2, m3 ; filter->dl[2] * filter->qm[2] + ; filter->dl[3] * filter->qm[3] + - movd m6, roundm ; filter->dl[4] * filter->qm[4] + - paddd m6, m2 ; filter->dl[5] * filter->qm[5] + + ; filter->dl[4] * filter->qm[4] + + paddd m4, m2 ; filter->dl[5] * filter->qm[5] + pshufd m2, m2, 0x1 ; filter->dl[6] * filter->qm[6] + - paddd m6, m2 ; filter->dl[7] * filter->qm[7]; - - palignr m5, m4, 4 ; filter->dx[0] = filter->dx[1]; filter->dx[1] = filter->dx[2]; - ; filter->dx[2] = filter->dx[3]; filter->dx[3] = filter->dx[4]; + paddd m4, m2 ; filter->dl[7] * filter->qm[7]; palignr m2, m1, m0, 4 ; filter->dl[0] = filter->dl[1]; filter->dl[1] = filter->dl[2]; ; filter->dl[2] = filter->dl[3]; filter->dl[3] = filter->dl[4]; - psrad m4, m1, 30 ; filter->dx[4] = ((filter->dl[4] >> 30) | 1); - por m4, [pd_1224 ] ; filter->dx[5] = ((filter->dl[5] >> 30) | 2) & ~1; - pand m4, [pd_n0113] ; filter->dx[6] = ((filter->dl[6] >> 30) | 2) & ~1; + psrad m3, m1, 30 ; filter->dx[4] = ((filter->dl[4] >> 30) | 1); + por m3, [pd_1224 ] ; filter->dx[5] = ((filter->dl[5] >> 30) | 2) & ~1; + pand m3, [pd_n0113] ; filter->dx[6] = ((filter->dl[6] >> 30) | 2) & ~1; ; filter->dx[7] = ((filter->dl[7] >> 30) | 4) & ~3; mova [dlq ], m2 mova [dxq ], m5 - mova [dxq + 0x10], m4 + mova [dxq + 0x10], m3 %ifidn %3,enc movd m2, shiftm ; movd m0, [inq] ; - psrad m6, m2 ; - psubd m3, m0, m6 ; + psrad m4, m2 ; + psubd m3, m0, m4 ; movd [inq], m3 ; *in -= (sum >> filter->shift); movd [errorq], m3 ; filter->error = *in; %else @@ -109,8 +115,8 @@ cglobal tta%3_filter_process, 5,5,%2, qm, dx, dl, error, in, shift, round movd [errorq], m0 ; movd m2, shiftm ; *in += (sum >> filter->shift); - psrad m6, m2 ; - paddd m0, m6 ; + psrad m4, m2 ; + paddd m0, m4 ; movd [inq], m0 ; %endif @@ -128,11 +134,11 @@ cglobal tta%3_filter_process, 5,5,%2, qm, dx, dl, error, in, shift, round %endmacro %if CONFIG_TTA_DECODER -TTA_FILTER ssse3, 8 -TTA_FILTER sse4, 7 +TTA_FILTER ssse3, 7 +TTA_FILTER sse4, 7-avx_enabled %endif %if CONFIG_TTA_ENCODER -TTA_FILTER ssse3, 8, enc -TTA_FILTER sse4, 7, enc +TTA_FILTER ssse3, 7, enc +TTA_FILTER sse4, 7-avx_enabled, enc %endif _______________________________________________ ffmpeg-cvslog mailing list -- [email protected] To unsubscribe send an email to [email protected]
