mirror of https://github.com/FFmpeg/FFmpeg.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
90 lines
2.4 KiB
90 lines
2.4 KiB
;****************************************************************************** |
|
;* SSE-optimized functions for the DCA decoder |
|
;* Copyright (C) 2012-2014 Christophe Gisquet <christophe.gisquet@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 "libavutil/x86/x86util.asm" |
|
|
|
SECTION_RODATA |
|
pf_inv16: times 4 dd 0x3D800000 ; 1/16 |
|
|
|
SECTION_TEXT |
|
|
|
; void int8x8_fmul_int32_sse2(float *dst, const int8_t *src, int scale) |
|
%macro INT8X8_FMUL_INT32 0 |
|
cglobal int8x8_fmul_int32, 3,3,5, dst, src, scale |
|
cvtsi2ss m0, scalem |
|
mulss m0, [pf_inv16] |
|
shufps m0, m0, 0 |
|
%if cpuflag(sse2) |
|
%if cpuflag(sse4) |
|
pmovsxbd m1, [srcq+0] |
|
pmovsxbd m2, [srcq+4] |
|
%else |
|
movq m1, [srcq] |
|
punpcklbw m1, m1 |
|
mova m2, m1 |
|
punpcklwd m1, m1 |
|
punpckhwd m2, m2 |
|
psrad m1, 24 |
|
psrad m2, 24 |
|
%endif |
|
cvtdq2ps m1, m1 |
|
cvtdq2ps m2, m2 |
|
%else |
|
movd mm0, [srcq+0] |
|
movd mm1, [srcq+4] |
|
punpcklbw mm0, mm0 |
|
punpcklbw mm1, mm1 |
|
movq mm2, mm0 |
|
movq mm3, mm1 |
|
punpcklwd mm0, mm0 |
|
punpcklwd mm1, mm1 |
|
punpckhwd mm2, mm2 |
|
punpckhwd mm3, mm3 |
|
psrad mm0, 24 |
|
psrad mm1, 24 |
|
psrad mm2, 24 |
|
psrad mm3, 24 |
|
cvtpi2ps m1, mm0 |
|
cvtpi2ps m2, mm1 |
|
cvtpi2ps m3, mm2 |
|
cvtpi2ps m4, mm3 |
|
shufps m0, m0, 0 |
|
emms |
|
shufps m1, m3, q1010 |
|
shufps m2, m4, q1010 |
|
%endif |
|
mulps m1, m0 |
|
mulps m2, m0 |
|
mova [dstq+ 0], m1 |
|
mova [dstq+16], m2 |
|
REP_RET |
|
%endmacro |
|
|
|
%if ARCH_X86_32 |
|
INIT_XMM sse |
|
INT8X8_FMUL_INT32 |
|
%endif |
|
|
|
INIT_XMM sse2 |
|
INT8X8_FMUL_INT32 |
|
|
|
INIT_XMM sse4 |
|
INT8X8_FMUL_INT32
|
|
|