/*
* 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
Messung V0.5 in Prozent C=80 H=74 G=76
¤ Dauer der Verarbeitung: 0.4 Sekunden
¤
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