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Diffstat (limited to 'libavfilter/x86/vf_idet.asm')
| -rw-r--r-- | libavfilter/x86/vf_idet.asm | 170 |
1 files changed, 170 insertions, 0 deletions
diff --git a/libavfilter/x86/vf_idet.asm b/libavfilter/x86/vf_idet.asm new file mode 100644 index 0000000000..9596abd7e2 --- /dev/null +++ b/libavfilter/x86/vf_idet.asm @@ -0,0 +1,170 @@ +;***************************************************************************** +;* x86-optimized functions for idet filter +;* +;* Copyright (C) 2014 Pascal Massimino (pascal.massimino@gmail.com) +;* Copyright (c) 2014 Neil Birkbeck (birkbeck@google.com) +;* +;* 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 + +; Implementation that does 8-bytes at a time using single-word operations. +%macro IDET_FILTER_LINE 1 +INIT_MMX %1 +cglobal idet_filter_line, 4, 5, 0, a, b, c, width, index + xor indexq, indexq +%define m_zero m2 +%define m_sum m5 + pxor m_sum, m_sum + pxor m_zero, m_zero + +.loop: + movu m0, [aq + indexq*1] + punpckhbw m1, m0, m_zero + punpcklbw m0, m_zero + + movu m3, [cq + indexq*1] + punpckhbw m4, m3, m_zero + punpcklbw m3, m_zero + + paddsw m1, m4 + paddsw m0, m3 + + movu m3, [bq + indexq*1] + punpckhbw m4, m3, m_zero + punpcklbw m3, m_zero + + paddw m4, m4 + paddw m3, m3 + psubsw m1, m4 + psubsw m0, m3 + + ABS2 m1, m0, m4, m3 + + paddw m0, m1 + punpckhwd m1, m0, m_zero + punpcklwd m0, m_zero + + paddd m0, m1 + paddd m_sum, m0 + + add indexq, 0x8 + CMP widthd, indexd + jg .loop + + HADDD m_sum, m0 + movd eax, m_sum + RET +%endmacro + +%if ARCH_X86_32 +IDET_FILTER_LINE mmxext +IDET_FILTER_LINE mmx +%endif + +;****************************************************************************** +; 16bit implementation that does 4/8-pixels at a time + +%macro PABS_DIFF_WD 3 ; a, b, junk , output=a + psubusw %3, %2, %1 + psubusw %1, %2 + por %1, %3 + + mova %2, %1 + punpcklwd %1, m_zero + punpckhwd %2, m_zero + paddd %1, %2 +%endmacro + +%macro IDET_FILTER_LINE_16BIT 1 ; %1=increment (4 or 8 words) +cglobal idet_filter_line_16bit, 4, 5, 8, a, b, c, width, index + xor indexq, indexq +%define m_zero m1 +%define m_sum m0 + pxor m_sum, m_sum + pxor m_zero, m_zero + +.loop_16bit: + movu m2, [bq + indexq * 2] ; B + movu m3, [aq + indexq * 2] ; A + mova m6, m2 + psubusw m5, m2, m3 ; ba + + movu m4, [cq + indexq * 2] ; C + add indexq, %1 + psubusw m3, m2 ; ab + CMP indexd, widthd + + psubusw m6, m4 ; bc + psubusw m4, m2 ; cb + + PABS_DIFF_WD m3, m6, m7 ; |ab - bc| + PABS_DIFF_WD m5, m4, m7 ; |ba - cb| + paddd m_sum, m3 + paddd m_sum, m5 + jl .loop_16bit + + HADDD m_sum, m2 + movd eax, m_sum + RET +%endmacro + +INIT_XMM sse2 +IDET_FILTER_LINE_16BIT 8 +%if ARCH_X86_32 +INIT_MMX mmx +IDET_FILTER_LINE_16BIT 4 +%endif + +;****************************************************************************** +; SSE2 8-bit implementation that does 16-bytes at a time: + +INIT_XMM sse2 +cglobal idet_filter_line, 4, 6, 7, a, b, c, width, index, total + xor indexq, indexq + pxor m0, m0 + pxor m1, m1 + +.sse2_loop: + movu m2, [bq + indexq*1] ; B + movu m3, [aq + indexq*1] ; A + mova m6, m2 + mova m4, m3 + psubusb m5, m2, m3 ; ba + + movu m3, [cq + indexq*1] ; C + add indexq, 0x10 + psubusb m4, m2 ; ab + CMP indexd, widthd + + psubusb m6, m3 ; bc + psubusb m3, m2 ; cb + + psadbw m4, m6 ; |ab - bc| + paddq m0, m4 + psadbw m5, m3 ; |ba - cb| + paddq m1, m5 + jl .sse2_loop + + paddq m0, m1 + movhlps m1, m0 + paddq m0, m1 + movd eax, m0 + RET |