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;*****************************************************************************
;* x86-optimized functions for framerate filter
;*
;* Copyright (C) 2018 Marton Balint
;*
;* Based on vf_blend.asm, Copyright (C) 2015 Paul B Mahol
;*
;* 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 XSPLAT 3
%if cpuflag(avx2)
vpbroadcast%3 %1, %2
%else
movd %1, %2
%ifidn %3, d
SPLATD %1
%else
SPLATW %1, %1
%endif
%endif
%endmacro
%macro BLEND_INIT 0-1
%if ARCH_X86_64
cglobal blend_frames%1, 6, 9, 5, src1, src1_linesize, src2, src2_linesize, dst, dst_linesize, width, end, x
mov widthd, dword widthm
%else
cglobal blend_frames%1, 5, 7, 5, src1, src1_linesize, src2, src2_linesize, dst, end, x
%define dst_linesizeq r5mp
%define widthq r6mp
%endif
mov endd, dword r7m
add src1q, widthq
add src2q, widthq
add dstq, widthq
neg widthq
%endmacro
%macro BLEND_LOOP 4
.nextrow:
mov xq, widthq
.loop:
movu m0, [src1q + xq]
movu m1, [src2q + xq]
SBUTTERFLY %1%2, 0, 1, 4 ; aAbBcCdD
; eEfFgGhH
pmadd%3 m0, m2
pmadd%3 m1, m2
padd%2 m0, m3
padd%2 m1, m3
psrl%2 m0, %4 ; 0A0B0C0D
psrl%2 m1, %4 ; 0E0F0G0H
packus%2%1 m0, m1 ; ABCDEFGH
movu [dstq + xq], m0
add xq, mmsize
jl .loop
add src1q, src1_linesizeq
add src2q, src2_linesizeq
add dstq, dst_linesizeq
sub endd, 1
jg .nextrow
REP_RET
%endmacro
%macro BLEND_FRAMES 0
BLEND_INIT
XSPLAT m2, r8m, w ; factor1
XSPLAT m3, r9m, w ; factor2
psllw m3, 8
por m2, m3 ; interleaved factors
XSPLAT m3, r10m, w ; half
BLEND_LOOP b, w, ubsw, 7
%endmacro
%macro BLEND_FRAMES16 0
BLEND_INIT 16
XSPLAT m2, r8m, d ; factor1
XSPLAT m3, r9m, d ; factor2
pslld m3, 16
por m2, m3 ; interleaved factors
XSPLAT m3, r10m, d ; half
BLEND_LOOP w, d, wd, 15
%endmacro
INIT_XMM ssse3
BLEND_FRAMES
INIT_XMM sse4
BLEND_FRAMES16
%if HAVE_AVX2_EXTERNAL
INIT_YMM avx2
BLEND_FRAMES
BLEND_FRAMES16
%endif
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