kc3-lang/libjpeg-turbo/simd/jccolor-altivec.c

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• Hash : 123f7258
  Author :
  Date : 2016-05-24T10:23:56
  

  Format copyright headers more consistently
  
  The IJG convention is to format copyright notices as:
  
  Copyright (C) YYYY, Owner.
  
  We try to maintain this convention for any code that is part of the
  libjpeg API library (with the exception of preserving the copyright
  notices from Cendio's code verbatim, since those predate
  libjpeg-turbo.)
  
  Note that the phrase "All Rights Reserved" is no longer necessary, since
  all Buenos Aires Convention signatories signed onto the Berne Convention
  in 2000.  However, our convention is to retain this phrase for any files
  that have a self-contained copyright header but to leave it off of any
  files that refer to another file for conditions of distribution and use.
  For instance, all of the non-SIMD files in the libjpeg API library refer
  to README.ijg, and the copyright message in that file contains "All
  Rights Reserved", so it is unnecessary to add it to the individual
  files.
  
  The TurboJPEG code retains my preferred formatting convention for
  copyright notices, which is based on that of VirtualGL (where the
  TurboJPEG API originated.)
  

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• simd/jccolor-altivec.c

• /*
   * AltiVec optimizations for libjpeg-turbo
   *
   * Copyright (C) 2014, 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.
   */
  
  /* RGB --> YCC CONVERSION */
  
  #include "jsimd_altivec.h"
  
  
  #define F_0_081 5329                 /* FIX(0.08131) */
  #define F_0_114 7471                 /* FIX(0.11400) */
  #define F_0_168 11059                /* FIX(0.16874) */
  #define F_0_250 16384                /* FIX(0.25000) */
  #define F_0_299 19595                /* FIX(0.29900) */
  #define F_0_331 21709                /* FIX(0.33126) */
  #define F_0_418 27439                /* FIX(0.41869) */
  #define F_0_500 32768                /* FIX(0.50000) */
  #define F_0_587 38470                /* FIX(0.58700) */
  #define F_0_337 (F_0_587 - F_0_250)  /* FIX(0.58700) - FIX(0.25000) */
  
  #define SCALEBITS 16
  #define ONE_HALF (1 << (SCALEBITS - 1))
  
  
  #define RGBG_INDEX0 {0,1,3,4,6,7,9,10,2,1,5,4,8,7,11,10}
  #define RGBG_INDEX1 {12,13,15,16,18,19,21,22,14,13,17,16,20,19,23,22}
  #define RGBG_INDEX2 {8,9,11,12,14,15,17,18,10,9,13,12,16,15,19,18}
  #define RGBG_INDEX3 {4,5,7,8,10,11,13,14,6,5,9,8,12,11,15,14}
  #include "jccolext-altivec.c"
  #undef RGB_PIXELSIZE
  
  #define RGB_PIXELSIZE EXT_RGB_PIXELSIZE
  #define jsimd_rgb_ycc_convert_altivec jsimd_extrgb_ycc_convert_altivec
  #include "jccolext-altivec.c"
  #undef RGB_PIXELSIZE
  #undef RGBG_INDEX0
  #undef RGBG_INDEX1
  #undef RGBG_INDEX2
  #undef RGBG_INDEX3
  #undef jsimd_rgb_ycc_convert_altivec
  
  #define RGB_PIXELSIZE EXT_RGBX_PIXELSIZE
  #define RGBG_INDEX {0,1,4,5,8,9,12,13,2,1,6,5,10,9,14,13}
  #define jsimd_rgb_ycc_convert_altivec jsimd_extrgbx_ycc_convert_altivec
  #include "jccolext-altivec.c"
  #undef RGB_PIXELSIZE
  #undef RGBG_INDEX
  #undef jsimd_rgb_ycc_convert_altivec
  
  #define RGB_PIXELSIZE EXT_BGR_PIXELSIZE
  #define RGBG_INDEX0 {2,1,5,4,8,7,11,10,0,1,3,4,6,7,9,10}
  #define RGBG_INDEX1 {14,13,17,16,20,19,23,22,12,13,15,16,18,19,21,22}
  #define RGBG_INDEX2 {10,9,13,12,16,15,19,18,8,9,11,12,14,15,17,18}
  #define RGBG_INDEX3 {6,5,9,8,12,11,15,14,4,5,7,8,10,11,13,14}
  #define jsimd_rgb_ycc_convert_altivec jsimd_extbgr_ycc_convert_altivec
  #include "jccolext-altivec.c"
  #undef RGB_PIXELSIZE
  #undef RGBG_INDEX0
  #undef RGBG_INDEX1
  #undef RGBG_INDEX2
  #undef RGBG_INDEX3
  #undef jsimd_rgb_ycc_convert_altivec
  
  #define RGB_PIXELSIZE EXT_BGRX_PIXELSIZE
  #define RGBG_INDEX {2,1,6,5,10,9,14,13,0,1,4,5,8,9,12,13}
  #define jsimd_rgb_ycc_convert_altivec jsimd_extbgrx_ycc_convert_altivec
  #include "jccolext-altivec.c"
  #undef RGB_PIXELSIZE
  #undef RGBG_INDEX
  #undef jsimd_rgb_ycc_convert_altivec
  
  #define RGB_PIXELSIZE EXT_XBGR_PIXELSIZE
  #define RGBG_INDEX {3,2,7,6,11,10,15,14,1,2,5,6,9,10,13,14}
  #define jsimd_rgb_ycc_convert_altivec jsimd_extxbgr_ycc_convert_altivec
  #include "jccolext-altivec.c"
  #undef RGB_PIXELSIZE
  #undef RGBG_INDEX
  #undef jsimd_rgb_ycc_convert_altivec
  
  #define RGB_PIXELSIZE EXT_XRGB_PIXELSIZE
  #define RGBG_INDEX {1,2,5,6,9,10,13,14,3,2,7,6,11,10,15,14}
  #define jsimd_rgb_ycc_convert_altivec jsimd_extxrgb_ycc_convert_altivec
  #include "jccolext-altivec.c"
  #undef RGB_PIXELSIZE
  #undef RGBG_INDEX
  #undef jsimd_rgb_ycc_convert_altivec
  

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