112 lines
3.9 KiB
C
112 lines
3.9 KiB
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 --> GRAYSCALE CONVERSION */
|
||
|
|
|
||
|
|
#include "jsimd_altivec.h"
|
||
|
|
|
||
|
|
|
||
|
|
#define F_0_114 7471 /* FIX(0.11400) */
|
||
|
|
#define F_0_250 16384 /* FIX(0.25000) */
|
||
|
|
#define F_0_299 19595 /* FIX(0.29900) */
|
||
|
|
#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 "jcgryext-altivec.c"
|
||
|
|
#undef RGB_PIXELSIZE
|
||
|
|
|
||
|
|
#define RGB_PIXELSIZE EXT_RGB_PIXELSIZE
|
||
|
|
#define jsimd_rgb_gray_convert_altivec jsimd_extrgb_gray_convert_altivec
|
||
|
|
#include "jcgryext-altivec.c"
|
||
|
|
#undef RGB_PIXELSIZE
|
||
|
|
#undef RGBG_INDEX0
|
||
|
|
#undef RGBG_INDEX1
|
||
|
|
#undef RGBG_INDEX2
|
||
|
|
#undef RGBG_INDEX3
|
||
|
|
#undef jsimd_rgb_gray_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_gray_convert_altivec jsimd_extrgbx_gray_convert_altivec
|
||
|
|
#include "jcgryext-altivec.c"
|
||
|
|
#undef RGB_PIXELSIZE
|
||
|
|
#undef RGBG_INDEX
|
||
|
|
#undef jsimd_rgb_gray_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_gray_convert_altivec jsimd_extbgr_gray_convert_altivec
|
||
|
|
#include "jcgryext-altivec.c"
|
||
|
|
#undef RGB_PIXELSIZE
|
||
|
|
#undef RGBG_INDEX0
|
||
|
|
#undef RGBG_INDEX1
|
||
|
|
#undef RGBG_INDEX2
|
||
|
|
#undef RGBG_INDEX3
|
||
|
|
#undef jsimd_rgb_gray_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_gray_convert_altivec jsimd_extbgrx_gray_convert_altivec
|
||
|
|
#include "jcgryext-altivec.c"
|
||
|
|
#undef RGB_PIXELSIZE
|
||
|
|
#undef RGBG_INDEX
|
||
|
|
#undef jsimd_rgb_gray_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_gray_convert_altivec jsimd_extxbgr_gray_convert_altivec
|
||
|
|
#include "jcgryext-altivec.c"
|
||
|
|
#undef RGB_PIXELSIZE
|
||
|
|
#undef RGBG_INDEX
|
||
|
|
#undef jsimd_rgb_gray_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_gray_convert_altivec jsimd_extxrgb_gray_convert_altivec
|
||
|
|
#include "jcgryext-altivec.c"
|
||
|
|
#undef RGB_PIXELSIZE
|
||
|
|
#undef RGBG_INDEX
|
||
|
|
#undef jsimd_rgb_gray_convert_altivec
|