| /* |
| * 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 |
