mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-23 12:43:46 +02:00
89 lines
2.3 KiB
NASM
89 lines
2.3 KiB
NASM
;******************************************************************************
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;* SIMD lossless video DSP utils
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;* Copyright (c) 2014 Michael Niedermayer
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;*
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;* This file is part of FFmpeg.
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;*
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;* FFmpeg is free software; you can redistribute it and/or
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;* modify it under the terms of the GNU Lesser General Public
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;* License as published by the Free Software Foundation; either
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;* version 2.1 of the License, or (at your option) any later version.
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;*
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;* FFmpeg is distributed in the hope that it will be useful,
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;* but WITHOUT ANY WARRANTY; without even the implied warranty of
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;* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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;* Lesser General Public License for more details.
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;*
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;* You should have received a copy of the GNU Lesser General Public
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;* License along with FFmpeg; if not, write to the Free Software
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;* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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;******************************************************************************
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%include "libavutil/x86/x86util.asm"
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SECTION_TEXT
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%macro ADD_INT16_LOOP 1 ; %1 = is_aligned
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movd m4, maskq
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punpcklwd m4, m4
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punpcklwd m4, m4
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punpcklwd m4, m4
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add wq, wq
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test wq, 2*mmsize - 1
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jz %%.tomainloop
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%%.wordloop:
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sub wq, 2
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mov ax, [srcq+wq]
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add ax, [dstq+wq]
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and ax, maskw
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mov [dstq+wq], ax
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test wq, 2*mmsize - 1
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jnz %%.wordloop
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%%.tomainloop:
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add srcq, wq
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add dstq, wq
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neg wq
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jz %%.end
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%%.loop:
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%if %1
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mova m0, [srcq+wq]
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mova m1, [dstq+wq]
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mova m2, [srcq+wq+mmsize]
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mova m3, [dstq+wq+mmsize]
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%else
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movu m0, [srcq+wq]
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movu m1, [dstq+wq]
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movu m2, [srcq+wq+mmsize]
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movu m3, [dstq+wq+mmsize]
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%endif
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paddw m0, m1
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paddw m2, m3
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pand m0, m4
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pand m2, m4
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%if %1
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mova [dstq+wq] , m0
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mova [dstq+wq+mmsize], m2
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%else
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movu [dstq+wq] , m0
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movu [dstq+wq+mmsize], m2
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%endif
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add wq, 2*mmsize
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jl %%.loop
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%%.end:
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RET
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%endmacro
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INIT_MMX mmx
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cglobal add_int16, 4,4,5, dst, src, mask, w
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ADD_INT16_LOOP 1
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INIT_XMM sse2
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cglobal add_int16, 4,4,5, dst, src, mask, w
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test srcq, mmsize-1
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jnz .unaligned
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test dstq, mmsize-1
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jnz .unaligned
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ADD_INT16_LOOP 1
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.unaligned:
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ADD_INT16_LOOP 0
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