jcgray-mmi.c (4237B)
1 /* 2 * Loongson MMI optimizations for libjpeg-turbo 3 * 4 * Copyright (C) 2011, 2014, D. R. Commander. All Rights Reserved. 5 * Copyright (C) 2016-2018, Loongson Technology Corporation Limited, BeiJing. 6 * All Rights Reserved. 7 * Authors: ZhangLixia <zhanglixia-hf@loongson.cn> 8 * 9 * This software is provided 'as-is', without any express or implied 10 * warranty. In no event will the authors be held liable for any damages 11 * arising from the use of this software. 12 * 13 * Permission is granted to anyone to use this software for any purpose, 14 * including commercial applications, and to alter it and redistribute it 15 * freely, subject to the following restrictions: 16 * 17 * 1. The origin of this software must not be misrepresented; you must not 18 * claim that you wrote the original software. If you use this software 19 * in a product, an acknowledgment in the product documentation would be 20 * appreciated but is not required. 21 * 2. Altered source versions must be plainly marked as such, and must not be 22 * misrepresented as being the original software. 23 * 3. This notice may not be removed or altered from any source distribution. 24 */ 25 26 /* RGB --> GRAYSCALE CONVERSION */ 27 28 #include "jsimd_mmi.h" 29 30 31 #define F_0_114 ((short)7471) /* FIX(0.11400) */ 32 #define F_0_250 ((short)16384) /* FIX(0.25000) */ 33 #define F_0_299 ((short)19595) /* FIX(0.29900) */ 34 #define F_0_587 ((short)38470) /* FIX(0.58700) */ 35 #define F_0_337 ((short)(F_0_587 - F_0_250)) /* FIX(0.58700) - FIX(0.25000) */ 36 37 enum const_index { 38 index_PD_ONEHALF, 39 index_PW_F0299_F0337, 40 index_PW_F0114_F0250 41 }; 42 43 static uint64_t const_value[] = { 44 _uint64_set_pi32((int)(1 << (SCALEBITS - 1)), (int)(1 << (SCALEBITS - 1))), 45 _uint64_set_pi16(F_0_337, F_0_299, F_0_337, F_0_299), 46 _uint64_set_pi16(F_0_250, F_0_114, F_0_250, F_0_114) 47 }; 48 49 #define get_const_value(index) (*(__m64 *)&const_value[index]) 50 51 #define PD_ONEHALF get_const_value(index_PD_ONEHALF) 52 #define PW_F0299_F0337 get_const_value(index_PW_F0299_F0337) 53 #define PW_F0114_F0250 get_const_value(index_PW_F0114_F0250) 54 55 56 #include "jcgryext-mmi.c" 57 #undef RGB_RED 58 #undef RGB_GREEN 59 #undef RGB_BLUE 60 #undef RGB_PIXELSIZE 61 62 #define RGB_RED EXT_RGB_RED 63 #define RGB_GREEN EXT_RGB_GREEN 64 #define RGB_BLUE EXT_RGB_BLUE 65 #define RGB_PIXELSIZE EXT_RGB_PIXELSIZE 66 #define jsimd_rgb_gray_convert_mmi jsimd_extrgb_gray_convert_mmi 67 #include "jcgryext-mmi.c" 68 #undef RGB_RED 69 #undef RGB_GREEN 70 #undef RGB_BLUE 71 #undef RGB_PIXELSIZE 72 #undef jsimd_rgb_gray_convert_mmi 73 74 #define RGB_RED EXT_RGBX_RED 75 #define RGB_GREEN EXT_RGBX_GREEN 76 #define RGB_BLUE EXT_RGBX_BLUE 77 #define RGB_PIXELSIZE EXT_RGBX_PIXELSIZE 78 #define jsimd_rgb_gray_convert_mmi jsimd_extrgbx_gray_convert_mmi 79 #include "jcgryext-mmi.c" 80 #undef RGB_RED 81 #undef RGB_GREEN 82 #undef RGB_BLUE 83 #undef RGB_PIXELSIZE 84 #undef jsimd_rgb_gray_convert_mmi 85 86 #define RGB_RED EXT_BGR_RED 87 #define RGB_GREEN EXT_BGR_GREEN 88 #define RGB_BLUE EXT_BGR_BLUE 89 #define RGB_PIXELSIZE EXT_BGR_PIXELSIZE 90 #define jsimd_rgb_gray_convert_mmi jsimd_extbgr_gray_convert_mmi 91 #include "jcgryext-mmi.c" 92 #undef RGB_RED 93 #undef RGB_GREEN 94 #undef RGB_BLUE 95 #undef RGB_PIXELSIZE 96 #undef jsimd_rgb_gray_convert_mmi 97 98 #define RGB_RED EXT_BGRX_RED 99 #define RGB_GREEN EXT_BGRX_GREEN 100 #define RGB_BLUE EXT_BGRX_BLUE 101 #define RGB_PIXELSIZE EXT_BGRX_PIXELSIZE 102 #define jsimd_rgb_gray_convert_mmi jsimd_extbgrx_gray_convert_mmi 103 #include "jcgryext-mmi.c" 104 #undef RGB_RED 105 #undef RGB_GREEN 106 #undef RGB_BLUE 107 #undef RGB_PIXELSIZE 108 #undef jsimd_rgb_gray_convert_mmi 109 110 #define RGB_RED EXT_XBGR_RED 111 #define RGB_GREEN EXT_XBGR_GREEN 112 #define RGB_BLUE EXT_XBGR_BLUE 113 #define RGB_PIXELSIZE EXT_XBGR_PIXELSIZE 114 #define jsimd_rgb_gray_convert_mmi jsimd_extxbgr_gray_convert_mmi 115 #include "jcgryext-mmi.c" 116 #undef RGB_RED 117 #undef RGB_GREEN 118 #undef RGB_BLUE 119 #undef RGB_PIXELSIZE 120 #undef jsimd_rgb_gray_convert_mmi 121 122 #define RGB_RED EXT_XRGB_RED 123 #define RGB_GREEN EXT_XRGB_GREEN 124 #define RGB_BLUE EXT_XRGB_BLUE 125 #define RGB_PIXELSIZE EXT_XRGB_PIXELSIZE 126 #define jsimd_rgb_gray_convert_mmi jsimd_extxrgb_gray_convert_mmi 127 #include "jcgryext-mmi.c" 128 #undef RGB_RED 129 #undef RGB_GREEN 130 #undef RGB_BLUE 131 #undef RGB_PIXELSIZE 132 #undef jsimd_rgb_gray_convert_mmi