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- ;
- ; Grayscale colorspace conversion (64-bit AVX2)
- ;
- ; Copyright (C) 2011, 2016, 2024, 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) or Yasm.
- %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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