mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-28 20:53:54 +02:00
a829870b2f
Reviewed-by: Michael Niedermayer <michaelni@gmx.at> Signed-off-by: James Almer <jamrial@gmail.com>
62 lines
1.7 KiB
NASM
62 lines
1.7 KiB
NASM
;******************************************************************************
|
|
;* SIMD-optimized SVQ1 encoder functions
|
|
;* Copyright (c) 2007 Loren Merritt
|
|
;*
|
|
;* 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_TEXT
|
|
|
|
%macro SSD_INT8_VS_INT16 0
|
|
cglobal ssd_int8_vs_int16, 3, 3, 3, pix1, pix2, size
|
|
pxor m0, m0
|
|
.loop
|
|
sub sizeq, 8
|
|
movq m1, [pix1q + sizeq]
|
|
mova m2, [pix2q + sizeq*2]
|
|
%if mmsize == 8
|
|
movq m3, [pix2q + sizeq*2 + mmsize]
|
|
punpckhbw m4, m1
|
|
punpcklbw m1, m1
|
|
psraw m4, 8
|
|
psraw m1, 8
|
|
psubw m3, m4
|
|
psubw m2, m1
|
|
pmaddwd m3, m3
|
|
pmaddwd m2, m2
|
|
paddd m0, m3
|
|
paddd m0, m2
|
|
%else
|
|
punpcklbw m1, m1
|
|
psraw m1, 8
|
|
psubw m2, m1
|
|
pmaddwd m2, m2
|
|
paddd m0, m2
|
|
%endif
|
|
jg .loop
|
|
HADDD m0, m1
|
|
movd eax, m0
|
|
RET
|
|
%endmacro
|
|
|
|
INIT_MMX mmx
|
|
SSD_INT8_VS_INT16
|
|
INIT_XMM sse2
|
|
SSD_INT8_VS_INT16
|