1;
2; jcgray.asm - grayscale colorspace conversion (SSE2)
3;
4; x86 SIMD extension for IJG JPEG library
5; Copyright (C) 1999-2006, MIYASAKA Masaru.
6; Copyright (C) 2011, D. R. Commander.
7; For conditions of distribution and use, see copyright notice in jsimdext.inc
8;
9; This file should be assembled with NASM (Netwide Assembler),
10; can *not* be assembled with Microsoft's MASM or any compatible
11; assembler (including Borland's Turbo Assembler).
12; NASM is available from http://nasm.sourceforge.net/ or
13; http://sourceforge.net/project/showfiles.php?group_id=6208
14;
15; [TAB8]
16
17%include "jsimdext.inc"
18
19; --------------------------------------------------------------------------
20
21%define SCALEBITS       16
22
23F_0_114 equ      7471                   ; FIX(0.11400)
24F_0_250 equ     16384                   ; FIX(0.25000)
25F_0_299 equ     19595                   ; FIX(0.29900)
26F_0_587 equ     38470                   ; FIX(0.58700)
27F_0_337 equ     (F_0_587 - F_0_250)     ; FIX(0.58700) - FIX(0.25000)
28
29; --------------------------------------------------------------------------
30        SECTION SEG_CONST
31
32        alignz  16
33        global  EXTN(jconst_rgb_gray_convert_sse2)
34
35EXTN(jconst_rgb_gray_convert_sse2):
36
37PW_F0299_F0337  times 4 dw  F_0_299, F_0_337
38PW_F0114_F0250  times 4 dw  F_0_114, F_0_250
39PD_ONEHALF      times 4 dd  (1 << (SCALEBITS-1))
40
41        alignz  16
42
43; --------------------------------------------------------------------------
44        SECTION SEG_TEXT
45        BITS    32
46
47%include "jcgryext-sse2.asm"
48
49%undef RGB_RED
50%undef RGB_GREEN
51%undef RGB_BLUE
52%undef RGB_PIXELSIZE
53%define RGB_RED EXT_RGB_RED
54%define RGB_GREEN EXT_RGB_GREEN
55%define RGB_BLUE EXT_RGB_BLUE
56%define RGB_PIXELSIZE EXT_RGB_PIXELSIZE
57%define jsimd_rgb_gray_convert_sse2 jsimd_extrgb_gray_convert_sse2
58%include "jcgryext-sse2.asm"
59
60%undef RGB_RED
61%undef RGB_GREEN
62%undef RGB_BLUE
63%undef RGB_PIXELSIZE
64%define RGB_RED EXT_RGBX_RED
65%define RGB_GREEN EXT_RGBX_GREEN
66%define RGB_BLUE EXT_RGBX_BLUE
67%define RGB_PIXELSIZE EXT_RGBX_PIXELSIZE
68%define jsimd_rgb_gray_convert_sse2 jsimd_extrgbx_gray_convert_sse2
69%include "jcgryext-sse2.asm"
70
71%undef RGB_RED
72%undef RGB_GREEN
73%undef RGB_BLUE
74%undef RGB_PIXELSIZE
75%define RGB_RED EXT_BGR_RED
76%define RGB_GREEN EXT_BGR_GREEN
77%define RGB_BLUE EXT_BGR_BLUE
78%define RGB_PIXELSIZE EXT_BGR_PIXELSIZE
79%define jsimd_rgb_gray_convert_sse2 jsimd_extbgr_gray_convert_sse2
80%include "jcgryext-sse2.asm"
81
82%undef RGB_RED
83%undef RGB_GREEN
84%undef RGB_BLUE
85%undef RGB_PIXELSIZE
86%define RGB_RED EXT_BGRX_RED
87%define RGB_GREEN EXT_BGRX_GREEN
88%define RGB_BLUE EXT_BGRX_BLUE
89%define RGB_PIXELSIZE EXT_BGRX_PIXELSIZE
90%define jsimd_rgb_gray_convert_sse2 jsimd_extbgrx_gray_convert_sse2
91%include "jcgryext-sse2.asm"
92
93%undef RGB_RED
94%undef RGB_GREEN
95%undef RGB_BLUE
96%undef RGB_PIXELSIZE
97%define RGB_RED EXT_XBGR_RED
98%define RGB_GREEN EXT_XBGR_GREEN
99%define RGB_BLUE EXT_XBGR_BLUE
100%define RGB_PIXELSIZE EXT_XBGR_PIXELSIZE
101%define jsimd_rgb_gray_convert_sse2 jsimd_extxbgr_gray_convert_sse2
102%include "jcgryext-sse2.asm"
103
104%undef RGB_RED
105%undef RGB_GREEN
106%undef RGB_BLUE
107%undef RGB_PIXELSIZE
108%define RGB_RED EXT_XRGB_RED
109%define RGB_GREEN EXT_XRGB_GREEN
110%define RGB_BLUE EXT_XRGB_BLUE
111%define RGB_PIXELSIZE EXT_XRGB_PIXELSIZE
112%define jsimd_rgb_gray_convert_sse2 jsimd_extxrgb_gray_convert_sse2
113%include "jcgryext-sse2.asm"
114