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96 lines
3.5 KiB
C
96 lines
3.5 KiB
C
/*
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* AltiVec optimizations for libjpeg-turbo
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*
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* Copyright (C) 2015, D. R. Commander. All Rights Reserved.
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*
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* This software is provided 'as-is', without any express or implied
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* warranty. In no event will the authors be held liable for any damages
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* arising from the use of this software.
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*
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* Permission is granted to anyone to use this software for any purpose,
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* including commercial applications, and to alter it and redistribute it
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* freely, subject to the following restrictions:
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*
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* 1. The origin of this software must not be misrepresented; you must not
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* claim that you wrote the original software. If you use this software
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* in a product, an acknowledgment in the product documentation would be
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* appreciated but is not required.
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* 2. Altered source versions must be plainly marked as such, and must not be
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* misrepresented as being the original software.
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* 3. This notice may not be removed or altered from any source distribution.
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*/
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/* YCC --> RGB CONVERSION */
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#include "jsimd_altivec.h"
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#define F_0_344 22554 /* FIX(0.34414) */
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#define F_0_714 46802 /* FIX(0.71414) */
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#define F_1_402 91881 /* FIX(1.40200) */
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#define F_1_772 116130 /* FIX(1.77200) */
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#define F_0_402 (F_1_402 - 65536) /* FIX(1.40200) - FIX(1) */
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#define F_0_285 (65536 - F_0_714) /* FIX(1) - FIX(0.71414) */
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#define F_0_228 (131072 - F_1_772) /* FIX(2) - FIX(1.77200) */
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#define SCALEBITS 16
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#define ONE_HALF (1 << (SCALEBITS - 1))
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#define RGB_INDEX0 {0,1,8,2,3,10,4,5,12,6,7,14,16,17,24,18}
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#define RGB_INDEX1 {3,10,4,5,12,6,7,14,16,17,24,18,19,26,20,21}
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#define RGB_INDEX2 {12,6,7,14,16,17,24,18,19,26,20,21,28,22,23,30}
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#include "jdcolext-altivec.c"
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#undef RGB_PIXELSIZE
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#define RGB_PIXELSIZE EXT_RGB_PIXELSIZE
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#define jsimd_ycc_rgb_convert_altivec jsimd_ycc_extrgb_convert_altivec
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#include "jdcolext-altivec.c"
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#undef RGB_PIXELSIZE
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#undef RGB_INDEX0
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#undef RGB_INDEX1
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#undef RGB_INDEX2
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#undef jsimd_ycc_rgb_convert_altivec
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#define RGB_PIXELSIZE EXT_RGBX_PIXELSIZE
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#define RGB_INDEX {0,1,8,9,2,3,10,11,4,5,12,13,6,7,14,15}
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#define jsimd_ycc_rgb_convert_altivec jsimd_ycc_extrgbx_convert_altivec
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#include "jdcolext-altivec.c"
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#undef RGB_PIXELSIZE
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#undef RGB_INDEX
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#undef jsimd_ycc_rgb_convert_altivec
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#define RGB_PIXELSIZE EXT_BGR_PIXELSIZE
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#define RGB_INDEX0 {8,1,0,10,3,2,12,5,4,14,7,6,24,17,16,26}
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#define RGB_INDEX1 {3,2,12,5,4,14,7,6,24,17,16,26,19,18,28,21}
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#define RGB_INDEX2 {4,14,7,6,24,17,16,26,19,18,28,21,20,30,23,22}
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#define jsimd_ycc_rgb_convert_altivec jsimd_ycc_extbgr_convert_altivec
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#include "jdcolext-altivec.c"
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#undef RGB_PIXELSIZE
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#undef RGB_INDEX0
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#undef RGB_INDEX1
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#undef RGB_INDEX2
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#undef jsimd_ycc_rgb_convert_altivec
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#define RGB_PIXELSIZE EXT_BGRX_PIXELSIZE
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#define RGB_INDEX {8,1,0,9,10,3,2,11,12,5,4,13,14,7,6,15}
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#define jsimd_ycc_rgb_convert_altivec jsimd_ycc_extbgrx_convert_altivec
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#include "jdcolext-altivec.c"
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#undef RGB_PIXELSIZE
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#undef RGB_INDEX
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#undef jsimd_ycc_rgb_convert_altivec
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#define RGB_PIXELSIZE EXT_XBGR_PIXELSIZE
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#define RGB_INDEX {9,8,1,0,11,10,3,2,13,12,5,4,15,14,7,6}
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#define jsimd_ycc_rgb_convert_altivec jsimd_ycc_extxbgr_convert_altivec
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#include "jdcolext-altivec.c"
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#undef RGB_PIXELSIZE
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#undef RGB_INDEX
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#undef jsimd_ycc_rgb_convert_altivec
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#define RGB_PIXELSIZE EXT_XRGB_PIXELSIZE
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#define RGB_INDEX {9,0,1,8,11,2,3,10,13,4,5,12,15,6,7,14}
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#define jsimd_ycc_rgb_convert_altivec jsimd_ycc_extxrgb_convert_altivec
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#include "jdcolext-altivec.c"
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#undef RGB_PIXELSIZE
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#undef RGB_INDEX
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#undef jsimd_ycc_rgb_convert_altivec
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