forked from KolibriOS/kolibrios
120 lines
4.8 KiB
NASM
120 lines
4.8 KiB
NASM
;******************************************************************************
|
|
;* TTA DSP SIMD optimizations
|
|
;*
|
|
;* Copyright (C) 2014 James Almer
|
|
;*
|
|
;* 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 "libavutil/x86/x86util.asm"
|
|
|
|
SECTION_RODATA
|
|
|
|
pd_n0113: dd ~0, ~1, ~1, ~3
|
|
pd_1224: dd 1, 2, 2, 4
|
|
|
|
SECTION .text
|
|
|
|
%macro TTA_FILTER 2
|
|
INIT_XMM %1
|
|
cglobal ttafilter_process_dec, 5,5,%2, qm, dx, dl, error, in, shift, round
|
|
mova m2, [qmq ]
|
|
mova m3, [qmq + 0x10]
|
|
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];
|
|
psignd m1, m5, m6 ; } else if (filter->error > 0) {
|
|
paddd m2, m0 ; for (int i = 0; i < 8; i++)
|
|
paddd m3, m1 ; filter->qm[i] += filter->dx[i];
|
|
mova [qmq ], m2 ; }
|
|
mova [qmq + 0x10], m3 ;
|
|
|
|
mova m0, [dlq ]
|
|
mova m1, [dlq + 0x10]
|
|
|
|
%if cpuflag(sse4)
|
|
pmulld m2, m0
|
|
pmulld m3, m1
|
|
%else
|
|
pshufd m6, m0, 0xb1
|
|
pshufd m7, m2, 0xb1
|
|
pmuludq m6, m7
|
|
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 m6, m6, 0xd8
|
|
pmuludq m3, m1
|
|
pshufd m3, m3, 0xd8
|
|
punpckldq m3, m6
|
|
%endif
|
|
; 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] +
|
|
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] +
|
|
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];
|
|
|
|
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;
|
|
; filter->dx[7] = ((filter->dl[7] >> 30) | 4) & ~3;
|
|
|
|
mova [dlq ], m2
|
|
mova [dxq ], m5
|
|
mova [dxq + 0x10], m4
|
|
movd m0, [inq] ; filter->error = *in;
|
|
movd [errorq], m0 ;
|
|
|
|
movd m2, shiftm ; *in += (sum >> filter->shift);
|
|
psrad m6, m2 ;
|
|
paddd m0, m6 ;
|
|
movd [inq], m0 ;
|
|
|
|
psrldq m1, 4 ;
|
|
pslldq m0, 12 ; filter->dl[4] = -filter->dl[5];
|
|
pshufd m0, m0, 0xf0 ; filter->dl[5] = -filter->dl[6];
|
|
psubd m0, m1 ; filter->dl[6] = *in - filter->dl[7];
|
|
psrldq m1, m0, 4 ; filter->dl[7] = *in;
|
|
pshufd m1, m1, 0xf4 ; filter->dl[5] += filter->dl[6];
|
|
paddd m0, m1 ; filter->dl[4] += filter->dl[5];
|
|
psrldq m1, 4 ;
|
|
paddd m0, m1 ;
|
|
mova [dlq + 0x10], m0 ;
|
|
RET
|
|
%endmacro
|
|
|
|
TTA_FILTER ssse3, 8
|
|
TTA_FILTER sse4, 7
|