| /* |
| * AltiVec optimizations for libjpeg-turbo |
| * |
| * Copyright (C) 2015, D. R. Commander. |
| * All rights reserved. |
| * 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. |
| */ |
| |
| /* YCC --> RGB CONVERSION */ |
| |
| #include "jsimd_altivec.h" |
| |
| |
| #define F_0_344 22554 /* FIX(0.34414) */ |
| #define F_0_714 46802 /* FIX(0.71414) */ |
| #define F_1_402 91881 /* FIX(1.40200) */ |
| #define F_1_772 116130 /* FIX(1.77200) */ |
| #define F_0_402 (F_1_402 - 65536) /* FIX(1.40200) - FIX(1) */ |
| #define F_0_285 (65536 - F_0_714) /* FIX(1) - FIX(0.71414) */ |
| #define F_0_228 (131072 - F_1_772) /* FIX(2) - FIX(1.77200) */ |
| |
| #define SCALEBITS 16 |
| #define ONE_HALF (1 << (SCALEBITS - 1)) |
| |
| #define RGB_INDEX0 {0,1,8,2,3,10,4,5,12,6,7,14,16,17,24,18} |
| #define RGB_INDEX1 {3,10,4,5,12,6,7,14,16,17,24,18,19,26,20,21} |
| #define RGB_INDEX2 {12,6,7,14,16,17,24,18,19,26,20,21,28,22,23,30} |
| #include "jdcolext-altivec.c" |
| #undef RGB_PIXELSIZE |
| |
| #define RGB_PIXELSIZE EXT_RGB_PIXELSIZE |
| #define jsimd_ycc_rgb_convert_altivec jsimd_ycc_extrgb_convert_altivec |
| #include "jdcolext-altivec.c" |
| #undef RGB_PIXELSIZE |
| #undef RGB_INDEX0 |
| #undef RGB_INDEX1 |
| #undef RGB_INDEX2 |
| #undef jsimd_ycc_rgb_convert_altivec |
| |
| #define RGB_PIXELSIZE EXT_RGBX_PIXELSIZE |
| #define RGB_INDEX {0,1,8,9,2,3,10,11,4,5,12,13,6,7,14,15} |
| #define jsimd_ycc_rgb_convert_altivec jsimd_ycc_extrgbx_convert_altivec |
| #include "jdcolext-altivec.c" |
| #undef RGB_PIXELSIZE |
| #undef RGB_INDEX |
| #undef jsimd_ycc_rgb_convert_altivec |
| |
| #define RGB_PIXELSIZE EXT_BGR_PIXELSIZE |
| #define RGB_INDEX0 {8,1,0,10,3,2,12,5,4,14,7,6,24,17,16,26} |
| #define RGB_INDEX1 {3,2,12,5,4,14,7,6,24,17,16,26,19,18,28,21} |
| #define RGB_INDEX2 {4,14,7,6,24,17,16,26,19,18,28,21,20,30,23,22} |
| #define jsimd_ycc_rgb_convert_altivec jsimd_ycc_extbgr_convert_altivec |
| #include "jdcolext-altivec.c" |
| #undef RGB_PIXELSIZE |
| #undef RGB_INDEX0 |
| #undef RGB_INDEX1 |
| #undef RGB_INDEX2 |
| #undef jsimd_ycc_rgb_convert_altivec |
| |
| #define RGB_PIXELSIZE EXT_BGRX_PIXELSIZE |
| #define RGB_INDEX {8,1,0,9,10,3,2,11,12,5,4,13,14,7,6,15} |
| #define jsimd_ycc_rgb_convert_altivec jsimd_ycc_extbgrx_convert_altivec |
| #include "jdcolext-altivec.c" |
| #undef RGB_PIXELSIZE |
| #undef RGB_INDEX |
| #undef jsimd_ycc_rgb_convert_altivec |
| |
| #define RGB_PIXELSIZE EXT_XBGR_PIXELSIZE |
| #define RGB_INDEX {9,8,1,0,11,10,3,2,13,12,5,4,15,14,7,6} |
| #define jsimd_ycc_rgb_convert_altivec jsimd_ycc_extxbgr_convert_altivec |
| #include "jdcolext-altivec.c" |
| #undef RGB_PIXELSIZE |
| #undef RGB_INDEX |
| #undef jsimd_ycc_rgb_convert_altivec |
| |
| #define RGB_PIXELSIZE EXT_XRGB_PIXELSIZE |
| #define RGB_INDEX {9,0,1,8,11,2,3,10,13,4,5,12,15,6,7,14} |
| #define jsimd_ycc_rgb_convert_altivec jsimd_ycc_extxrgb_convert_altivec |
| #include "jdcolext-altivec.c" |
| #undef RGB_PIXELSIZE |
| #undef RGB_INDEX |
| #undef jsimd_ycc_rgb_convert_altivec |
