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- /*
- * Loongson MMI optimizations for libjpeg-turbo
- *
- * Copyright (C) 2011, 2014, D. R. Commander. All Rights Reserved.
- * Copyright (C) 2016-2018, Loongson Technology Corporation Limited, BeiJing.
- * All Rights Reserved.
- * Authors: ZhangLixia <zhanglixia-hf@loongson.cn>
- *
- * This software is provided 'as-is', without any express or implied
- * warranty. In no event will the authors be held liable for any damages
- * arising from the use of this software.
- *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
- *
- * 1. The origin of this software must not be misrepresented; you must not
- * claim that you wrote the original software. If you use this software
- * in a product, an acknowledgment in the product documentation would be
- * appreciated but is not required.
- * 2. Altered source versions must be plainly marked as such, and must not be
- * misrepresented as being the original software.
- * 3. This notice may not be removed or altered from any source distribution.
- */
- /* RGB --> GRAYSCALE CONVERSION */
- #include "jsimd_mmi.h"
- #define F_0_114 ((short)7471) /* FIX(0.11400) */
- #define F_0_250 ((short)16384) /* FIX(0.25000) */
- #define F_0_299 ((short)19595) /* FIX(0.29900) */
- #define F_0_587 ((short)38470) /* FIX(0.58700) */
- #define F_0_337 ((short)(F_0_587 - F_0_250)) /* FIX(0.58700) - FIX(0.25000) */
- enum const_index {
- index_PD_ONEHALF,
- index_PW_F0299_F0337,
- index_PW_F0114_F0250
- };
- static uint64_t const_value[] = {
- _uint64_set_pi32((int)(1 << (SCALEBITS - 1)), (int)(1 << (SCALEBITS - 1))),
- _uint64_set_pi16(F_0_337, F_0_299, F_0_337, F_0_299),
- _uint64_set_pi16(F_0_250, F_0_114, F_0_250, F_0_114)
- };
- #define get_const_value(index) (*(__m64 *)&const_value[index])
- #define PD_ONEHALF get_const_value(index_PD_ONEHALF)
- #define PW_F0299_F0337 get_const_value(index_PW_F0299_F0337)
- #define PW_F0114_F0250 get_const_value(index_PW_F0114_F0250)
- #include "jcgryext-mmi.c"
- #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_mmi jsimd_extrgb_gray_convert_mmi
- #include "jcgryext-mmi.c"
- #undef RGB_RED
- #undef RGB_GREEN
- #undef RGB_BLUE
- #undef RGB_PIXELSIZE
- #undef jsimd_rgb_gray_convert_mmi
- #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_mmi jsimd_extrgbx_gray_convert_mmi
- #include "jcgryext-mmi.c"
- #undef RGB_RED
- #undef RGB_GREEN
- #undef RGB_BLUE
- #undef RGB_PIXELSIZE
- #undef jsimd_rgb_gray_convert_mmi
- #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_mmi jsimd_extbgr_gray_convert_mmi
- #include "jcgryext-mmi.c"
- #undef RGB_RED
- #undef RGB_GREEN
- #undef RGB_BLUE
- #undef RGB_PIXELSIZE
- #undef jsimd_rgb_gray_convert_mmi
- #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_mmi jsimd_extbgrx_gray_convert_mmi
- #include "jcgryext-mmi.c"
- #undef RGB_RED
- #undef RGB_GREEN
- #undef RGB_BLUE
- #undef RGB_PIXELSIZE
- #undef jsimd_rgb_gray_convert_mmi
- #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_mmi jsimd_extxbgr_gray_convert_mmi
- #include "jcgryext-mmi.c"
- #undef RGB_RED
- #undef RGB_GREEN
- #undef RGB_BLUE
- #undef RGB_PIXELSIZE
- #undef jsimd_rgb_gray_convert_mmi
- #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_mmi jsimd_extxrgb_gray_convert_mmi
- #include "jcgryext-mmi.c"
- #undef RGB_RED
- #undef RGB_GREEN
- #undef RGB_BLUE
- #undef RGB_PIXELSIZE
- #undef jsimd_rgb_gray_convert_mmi
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