kc3-lang/libjpeg-turbo/simd/arm/jdcolor-neon.c

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• Hash : 4e151a4a
  Author :
  Date : 2025-08-26T21:11:07
  

  Remove vestigial filenames from SIMD code headers
  
  These were a relic of libjpeg/SIMD, which attempted to follow the
  conventions of the libjpeg source code, but they are no longer relevant
  (or even accurate in some cases.)
  

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• simd/arm/jdcolor-neon.c

• /*
   * Colorspace conversion (Arm Neon)
   *
   * Copyright (C) 2020, Arm Limited.  All Rights Reserved.
   * Copyright (C) 2024, 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.
   */
  
  #define JPEG_INTERNALS
  #include "../../src/jinclude.h"
  #include "../../src/jpeglib.h"
  #include "../../src/jsimd.h"
  #include "../../src/jdct.h"
  #include "../../src/jsimddct.h"
  #include "../jsimd.h"
  #include "align.h"
  #include "neon-compat.h"
  
  #include <arm_neon.h>
  
  
  /* YCbCr -> RGB conversion constants */
  
  #define F_0_344  11277  /* 0.3441467 = 11277 * 2^-15 */
  #define F_0_714  23401  /* 0.7141418 = 23401 * 2^-15 */
  #define F_1_402  22971  /* 1.4020386 = 22971 * 2^-14 */
  #define F_1_772  29033  /* 1.7720337 = 29033 * 2^-14 */
  
  ALIGN(16) static const int16_t jsimd_ycc_rgb_convert_neon_consts[] = {
    -F_0_344, F_0_714, F_1_402, F_1_772
  };
  
  
  /* Include inline routines for colorspace extensions. */
  
  #include "jdcolext-neon.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_ycc_rgb_convert_neon  jsimd_ycc_extrgb_convert_neon
  #include "jdcolext-neon.c"
  #undef RGB_RED
  #undef RGB_GREEN
  #undef RGB_BLUE
  #undef RGB_PIXELSIZE
  #undef jsimd_ycc_rgb_convert_neon
  
  #define RGB_RED  EXT_RGBX_RED
  #define RGB_GREEN  EXT_RGBX_GREEN
  #define RGB_BLUE  EXT_RGBX_BLUE
  #define RGB_ALPHA  3
  #define RGB_PIXELSIZE  EXT_RGBX_PIXELSIZE
  #define jsimd_ycc_rgb_convert_neon  jsimd_ycc_extrgbx_convert_neon
  #include "jdcolext-neon.c"
  #undef RGB_RED
  #undef RGB_GREEN
  #undef RGB_BLUE
  #undef RGB_ALPHA
  #undef RGB_PIXELSIZE
  #undef jsimd_ycc_rgb_convert_neon
  
  #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_ycc_rgb_convert_neon  jsimd_ycc_extbgr_convert_neon
  #include "jdcolext-neon.c"
  #undef RGB_RED
  #undef RGB_GREEN
  #undef RGB_BLUE
  #undef RGB_PIXELSIZE
  #undef jsimd_ycc_rgb_convert_neon
  
  #define RGB_RED  EXT_BGRX_RED
  #define RGB_GREEN  EXT_BGRX_GREEN
  #define RGB_BLUE  EXT_BGRX_BLUE
  #define RGB_ALPHA  3
  #define RGB_PIXELSIZE  EXT_BGRX_PIXELSIZE
  #define jsimd_ycc_rgb_convert_neon  jsimd_ycc_extbgrx_convert_neon
  #include "jdcolext-neon.c"
  #undef RGB_RED
  #undef RGB_GREEN
  #undef RGB_BLUE
  #undef RGB_ALPHA
  #undef RGB_PIXELSIZE
  #undef jsimd_ycc_rgb_convert_neon
  
  #define RGB_RED  EXT_XBGR_RED
  #define RGB_GREEN  EXT_XBGR_GREEN
  #define RGB_BLUE  EXT_XBGR_BLUE
  #define RGB_ALPHA  0
  #define RGB_PIXELSIZE  EXT_XBGR_PIXELSIZE
  #define jsimd_ycc_rgb_convert_neon  jsimd_ycc_extxbgr_convert_neon
  #include "jdcolext-neon.c"
  #undef RGB_RED
  #undef RGB_GREEN
  #undef RGB_BLUE
  #undef RGB_ALPHA
  #undef RGB_PIXELSIZE
  #undef jsimd_ycc_rgb_convert_neon
  
  #define RGB_RED  EXT_XRGB_RED
  #define RGB_GREEN  EXT_XRGB_GREEN
  #define RGB_BLUE  EXT_XRGB_BLUE
  #define RGB_ALPHA  0
  #define RGB_PIXELSIZE  EXT_XRGB_PIXELSIZE
  #define jsimd_ycc_rgb_convert_neon  jsimd_ycc_extxrgb_convert_neon
  #include "jdcolext-neon.c"
  #undef RGB_RED
  #undef RGB_GREEN
  #undef RGB_BLUE
  #undef RGB_ALPHA
  #undef RGB_PIXELSIZE
  #undef jsimd_ycc_rgb_convert_neon
  
  /* YCbCr -> RGB565 Conversion */
  
  #define RGB_PIXELSIZE  2
  #define jsimd_ycc_rgb_convert_neon  jsimd_ycc_rgb565_convert_neon
  #include "jdcolext-neon.c"
  #undef RGB_PIXELSIZE
  #undef jsimd_ycc_rgb_convert_neon
  

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