;

; 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"