forked from KolibriOS/kolibrios
upload sdk
git-svn-id: svn://kolibrios.org@4349 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
83
contrib/sdk/sources/ffmpeg/libavcodec/x86/vorbisdsp.asm
Normal file
83
contrib/sdk/sources/ffmpeg/libavcodec/x86/vorbisdsp.asm
Normal file
@@ -0,0 +1,83 @@
|
||||
;******************************************************************************
|
||||
;* Vorbis x86 optimizations
|
||||
;* Copyright (C) 2006 Loren Merritt <lorenm@u.washington.edu>
|
||||
;*
|
||||
;* 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
|
||||
|
||||
pdw_80000000: times 4 dd 0x80000000
|
||||
|
||||
SECTION .text
|
||||
|
||||
%if ARCH_X86_32
|
||||
INIT_MMX 3dnow
|
||||
cglobal vorbis_inverse_coupling, 3, 3, 6, mag, ang, block_size
|
||||
pxor m7, m7
|
||||
lea magq, [magq+block_sizeq*4]
|
||||
lea angq, [angq+block_sizeq*4]
|
||||
neg block_sizeq
|
||||
.loop:
|
||||
mova m0, [magq+block_sizeq*4]
|
||||
mova m1, [angq+block_sizeq*4]
|
||||
mova m2, m0
|
||||
mova m3, m1
|
||||
pfcmpge m2, m7 ; m <= 0.0
|
||||
pfcmpge m3, m7 ; a <= 0.0
|
||||
pslld m2, 31 ; keep only the sign bit
|
||||
pxor m1, m2
|
||||
mova m4, m3
|
||||
pand m3, m1
|
||||
pandn m4, m1
|
||||
pfadd m3, m0 ; a = m + ((a < 0) & (a ^ sign(m)))
|
||||
pfsub m0, m4 ; m = m + ((a > 0) & (a ^ sign(m)))
|
||||
mova [angq+block_sizeq*4], m3
|
||||
mova [magq+block_sizeq*4], m0
|
||||
add block_sizeq, 2
|
||||
jl .loop
|
||||
femms
|
||||
RET
|
||||
%endif
|
||||
|
||||
INIT_XMM sse
|
||||
cglobal vorbis_inverse_coupling, 3, 4, 6, mag, ang, block_size, cntr
|
||||
mova m5, [pdw_80000000]
|
||||
xor cntrq, cntrq
|
||||
align 16
|
||||
.loop:
|
||||
mova m0, [magq+cntrq*4]
|
||||
mova m1, [angq+cntrq*4]
|
||||
xorps m2, m2
|
||||
xorps m3, m3
|
||||
cmpleps m2, m0 ; m <= 0.0
|
||||
cmpleps m3, m1 ; a <= 0.0
|
||||
andps m2, m5 ; keep only the sign bit
|
||||
xorps m1, m2
|
||||
mova m4, m3
|
||||
andps m3, m1
|
||||
andnps m4, m1
|
||||
addps m3, m0 ; a = m + ((a < 0) & (a ^ sign(m)))
|
||||
subps m0, m4 ; m = m + ((a > 0) & (a ^ sign(m)))
|
||||
mova [angq+cntrq*4], m3
|
||||
mova [magq+cntrq*4], m0
|
||||
add cntrq, 4
|
||||
cmp cntrq, block_sizeq
|
||||
jl .loop
|
||||
RET
|
Reference in New Issue
Block a user