mirror of
https://git.ffmpeg.org/ffmpeg.git
synced 2024-12-18 05:24:42 +00:00
137 lines
4.4 KiB
NASM
137 lines
4.4 KiB
NASM
;******************************************************************************
|
|
;* Copyright (c) 2024 Ramiro Polla
|
|
;*
|
|
;* 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_RODATA
|
|
|
|
chr_to_mult: times 4 dw 4663, 0
|
|
chr_to_offset: times 4 dd -9289992
|
|
%define chr_to_shift 12
|
|
|
|
chr_from_mult: times 4 dw 1799, 0
|
|
chr_from_offset: times 4 dd 4081085
|
|
%define chr_from_shift 11
|
|
|
|
lum_to_mult: times 4 dw 19077, 0
|
|
lum_to_offset: times 4 dd -39057361
|
|
%define lum_to_shift 14
|
|
|
|
lum_from_mult: times 4 dw 14071, 0
|
|
lum_from_offset: times 4 dd 33561947
|
|
%define lum_from_shift 14
|
|
|
|
SECTION .text
|
|
|
|
; NOTE: there is no need to clamp the input when converting to jpeg range
|
|
; (like we do in the C code) because packssdw will saturate the output.
|
|
|
|
;-----------------------------------------------------------------------------
|
|
; lumConvertRange
|
|
;
|
|
; void ff_lumRangeToJpeg_<opt>(int16_t *dst, int width);
|
|
; void ff_lumRangeFromJpeg_<opt>(int16_t *dst, int width);
|
|
;
|
|
;-----------------------------------------------------------------------------
|
|
|
|
%macro LUMCONVERTRANGE 4
|
|
cglobal %1, 2, 2, 5, dst, width
|
|
shl widthd, 1
|
|
VBROADCASTI128 m2, [%2]
|
|
VBROADCASTI128 m3, [%3]
|
|
pxor m4, m4
|
|
add dstq, widthq
|
|
neg widthq
|
|
.loop:
|
|
movu m0, [dstq+widthq]
|
|
punpckhwd m1, m0, m4
|
|
punpcklwd m0, m4
|
|
pmaddwd m0, m2
|
|
pmaddwd m1, m2
|
|
paddd m0, m3
|
|
paddd m1, m3
|
|
psrad m0, %4
|
|
psrad m1, %4
|
|
packssdw m0, m1
|
|
movu [dstq+widthq], m0
|
|
add widthq, mmsize
|
|
jl .loop
|
|
RET
|
|
%endmacro
|
|
|
|
;-----------------------------------------------------------------------------
|
|
; chrConvertRange
|
|
;
|
|
; void ff_chrRangeToJpeg_<opt>(int16_t *dstU, int16_t *dstV, int width);
|
|
; void ff_chrRangeFromJpeg_<opt>(int16_t *dstU, int16_t *dstV, int width);
|
|
;
|
|
;-----------------------------------------------------------------------------
|
|
|
|
%macro CHRCONVERTRANGE 4
|
|
cglobal %1, 3, 3, 7, dstU, dstV, width
|
|
shl widthd, 1
|
|
VBROADCASTI128 m4, [%2]
|
|
VBROADCASTI128 m5, [%3]
|
|
pxor m6, m6
|
|
add dstUq, widthq
|
|
add dstVq, widthq
|
|
neg widthq
|
|
.loop:
|
|
movu m0, [dstUq+widthq]
|
|
movu m2, [dstVq+widthq]
|
|
punpckhwd m1, m0, m6
|
|
punpckhwd m3, m2, m6
|
|
punpcklwd m0, m6
|
|
punpcklwd m2, m6
|
|
pmaddwd m0, m4
|
|
pmaddwd m1, m4
|
|
pmaddwd m2, m4
|
|
pmaddwd m3, m4
|
|
paddd m0, m5
|
|
paddd m1, m5
|
|
paddd m2, m5
|
|
paddd m3, m5
|
|
psrad m0, %4
|
|
psrad m1, %4
|
|
psrad m2, %4
|
|
psrad m3, %4
|
|
packssdw m0, m1
|
|
packssdw m2, m3
|
|
movu [dstUq+widthq], m0
|
|
movu [dstVq+widthq], m2
|
|
add widthq, mmsize
|
|
jl .loop
|
|
RET
|
|
%endmacro
|
|
|
|
INIT_XMM sse2
|
|
LUMCONVERTRANGE lumRangeToJpeg, lum_to_mult, lum_to_offset, lum_to_shift
|
|
CHRCONVERTRANGE chrRangeToJpeg, chr_to_mult, chr_to_offset, chr_to_shift
|
|
LUMCONVERTRANGE lumRangeFromJpeg, lum_from_mult, lum_from_offset, lum_from_shift
|
|
CHRCONVERTRANGE chrRangeFromJpeg, chr_from_mult, chr_from_offset, chr_from_shift
|
|
|
|
%if HAVE_AVX2_EXTERNAL
|
|
INIT_YMM avx2
|
|
LUMCONVERTRANGE lumRangeToJpeg, lum_to_mult, lum_to_offset, lum_to_shift
|
|
CHRCONVERTRANGE chrRangeToJpeg, chr_to_mult, chr_to_offset, chr_to_shift
|
|
LUMCONVERTRANGE lumRangeFromJpeg, lum_from_mult, lum_from_offset, lum_from_shift
|
|
CHRCONVERTRANGE chrRangeFromJpeg, chr_from_mult, chr_from_offset, chr_from_shift
|
|
%endif
|