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;
; jcgray.asm - grayscale colorspace conversion (64-bit AVX2)
;
; Copyright (C) 2011, 2016, D. R. Commander.
; Copyright (C) 2015, Intel Corporation.
;
; Based on the x86 SIMD extension for IJG JPEG library
; Copyright (C) 1999-2006, MIYASAKA Masaru.
; For conditions of distribution and use, see copyright notice in jsimdext.inc
;
; This file should be assembled with NASM (Netwide Assembler),
; can *not* be assembled with Microsoft's MASM or any compatible
; assembler (including Borland's Turbo Assembler).
; NASM is available from http://nasm.sourceforge.net/ or
; http://sourceforge.net/project/showfiles.php?group_id=6208
%include "jsimdext.inc"
; --------------------------------------------------------------------------
%define SCALEBITS 16
F_0_114 equ 7471 ; FIX(0.11400)
F_0_250 equ 16384 ; FIX(0.25000)
F_0_299 equ 19595 ; FIX(0.29900)
F_0_587 equ 38470 ; FIX(0.58700)
F_0_337 equ (F_0_587 - F_0_250) ; FIX(0.58700) - FIX(0.25000)
; --------------------------------------------------------------------------
SECTION SEG_CONST
alignz 32
GLOBAL_DATA(jconst_rgb_gray_convert_avx2)
EXTN(jconst_rgb_gray_convert_avx2):
PW_F0299_F0337 times 8 dw F_0_299, F_0_337
PW_F0114_F0250 times 8 dw F_0_114, F_0_250
PD_ONEHALF times 8 dd (1 << (SCALEBITS - 1))
alignz 32
; --------------------------------------------------------------------------
SECTION SEG_TEXT
BITS 64
%include "jcgryext-avx2.asm"
%undef RGB_RED
%undef RGB_GREEN
%undef RGB_BLUE
%undef RGB_PIXELSIZE
%define RGB_RED EXT_RGB_RED
%define RGB_GREEN EXT_RGB_GREEN
%define RGB_BLUE EXT_RGB_BLUE
%define RGB_PIXELSIZE EXT_RGB_PIXELSIZE
%define jsimd_rgb_gray_convert_avx2 jsimd_extrgb_gray_convert_avx2
%include "jcgryext-avx2.asm"
%undef RGB_RED
%undef RGB_GREEN
%undef RGB_BLUE
%undef RGB_PIXELSIZE
%define RGB_RED EXT_RGBX_RED
%define RGB_GREEN EXT_RGBX_GREEN
%define RGB_BLUE EXT_RGBX_BLUE
%define RGB_PIXELSIZE EXT_RGBX_PIXELSIZE
%define jsimd_rgb_gray_convert_avx2 jsimd_extrgbx_gray_convert_avx2
%include "jcgryext-avx2.asm"
%undef RGB_RED
%undef RGB_GREEN
%undef RGB_BLUE
%undef RGB_PIXELSIZE
%define RGB_RED EXT_BGR_RED
%define RGB_GREEN EXT_BGR_GREEN
%define RGB_BLUE EXT_BGR_BLUE
%define RGB_PIXELSIZE EXT_BGR_PIXELSIZE
%define jsimd_rgb_gray_convert_avx2 jsimd_extbgr_gray_convert_avx2
%include "jcgryext-avx2.asm"
%undef RGB_RED
%undef RGB_GREEN
%undef RGB_BLUE
%undef RGB_PIXELSIZE
%define RGB_RED EXT_BGRX_RED
%define RGB_GREEN EXT_BGRX_GREEN
%define RGB_BLUE EXT_BGRX_BLUE
%define RGB_PIXELSIZE EXT_BGRX_PIXELSIZE
%define jsimd_rgb_gray_convert_avx2 jsimd_extbgrx_gray_convert_avx2
%include "jcgryext-avx2.asm"
%undef RGB_RED
%undef RGB_GREEN
%undef RGB_BLUE
%undef RGB_PIXELSIZE
%define RGB_RED EXT_XBGR_RED
%define RGB_GREEN EXT_XBGR_GREEN
%define RGB_BLUE EXT_XBGR_BLUE
%define RGB_PIXELSIZE EXT_XBGR_PIXELSIZE
%define jsimd_rgb_gray_convert_avx2 jsimd_extxbgr_gray_convert_avx2
%include "jcgryext-avx2.asm"
%undef RGB_RED
%undef RGB_GREEN
%undef RGB_BLUE
%undef RGB_PIXELSIZE
%define RGB_RED EXT_XRGB_RED
%define RGB_GREEN EXT_XRGB_GREEN
%define RGB_BLUE EXT_XRGB_BLUE
%define RGB_PIXELSIZE EXT_XRGB_PIXELSIZE
%define jsimd_rgb_gray_convert_avx2 jsimd_extxrgb_gray_convert_avx2
%include "jcgryext-avx2.asm"
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