aac5773f
 hucm
功能基本完成，接口待打磨
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;******************************************************************************
;* SIMD-optimized HuffYUV functions
;* Copyright (c) 2008 Loren Merritt
;* Copyright (c) 2014 Christophe Gisquet
;*
;* 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
;******************************************************************************
%macro INT16_LOOP 2 ; %1 = a/u (aligned/unaligned), %2 = add/sub
movd xm4, maskd
SPLATW m4, xm4
add wd, wd
test wq, 2*mmsize - 1
jz %%.tomainloop
push tmpq
%%.wordloop:
sub wq, 2
%ifidn %2, add
mov tmpw, [srcq+wq]
add tmpw, [dstq+wq]
%else
mov tmpw, [src1q+wq]
sub tmpw, [src2q+wq]
%endif
and tmpw, maskw
mov [dstq+wq], tmpw
test wq, 2*mmsize - 1
jnz %%.wordloop
pop tmpq
%%.tomainloop:
%ifidn %2, add
add srcq, wq
%else
add src1q, wq
add src2q, wq
%endif
add dstq, wq
neg wq
jz %%.end
%%.loop:
%ifidn %2, add
mov%1 m0, [srcq+wq]
mov%1 m1, [dstq+wq]
mov%1 m2, [srcq+wq+mmsize]
mov%1 m3, [dstq+wq+mmsize]
%else
mov%1 m0, [src1q+wq]
mov%1 m1, [src2q+wq]
mov%1 m2, [src1q+wq+mmsize]
mov%1 m3, [src2q+wq+mmsize]
%endif
p%2w m0, m1
p%2w m2, m3
pand m0, m4
pand m2, m4
mov%1 [dstq+wq] , m0
mov%1 [dstq+wq+mmsize], m2
add wq, 2*mmsize
jl %%.loop
%%.end:
RET
%endmacro
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