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;******************************************************************************
;* x86-optimized functions for gradfun filter
;*
;* This file is part of Libav.
;*
;* Libav 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.
;*
;* Libav 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 Libav; 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
pw_7f: times 8 dw 0x7F
pw_ff: times 8 dw 0xFF
SECTION .text
%macro FILTER_LINE 1
movh m0, [r2+r0]
movh m1, [r3+r0]
punpcklbw m0, m7
punpcklwd m1, m1
psllw m0, 7
psubw m1, m0
PABSW m2, m1
pmulhuw m2, m5
psubw m2, m6
pminsw m2, m7
pmullw m2, m2
psllw m1, 2
paddw m0, %1
pmulhw m1, m2
paddw m0, m1
psraw m0, 7
packuswb m0, m0
movh [r1+r0], m0
%endmacro
INIT_MMX mmxext
cglobal gradfun_filter_line, 6, 6
movh m5, r4d
pxor m7, m7
pshufw m5, m5,0
mova m6, [pw_7f]
mova m3, [r5]
mova m4, [r5+8]
.loop:
FILTER_LINE m3
add r0, 4
jge .end
FILTER_LINE m4
add r0, 4
jl .loop
.end:
REP_RET
INIT_XMM ssse3
cglobal gradfun_filter_line, 6, 6, 8
movd m5, r4d
pxor m7, m7
pshuflw m5, m5, 0
mova m6, [pw_7f]
punpcklqdq m5, m5
mova m4, [r5]
.loop:
FILTER_LINE m4
add r0, 8
jl .loop
REP_RET
%macro BLUR_LINE 1
cglobal gradfun_blur_line_%1, 6, 6, 8
mova m7, [pw_ff]
.loop:
%1 m0, [r4+r0]
%1 m1, [r5+r0]
mova m2, m0
mova m3, m1
psrlw m0, 8
psrlw m1, 8
pand m2, m7
pand m3, m7
paddw m0, m1
paddw m2, m3
paddw m0, m2
paddw m0, [r2+r0]
mova m1, [r1+r0]
mova [r1+r0], m0
psubw m0, m1
mova [r3+r0], m0
add r0, 16
jl .loop
REP_RET
%endmacro
INIT_XMM sse2
BLUR_LINE movdqa
BLUR_LINE movdqu
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