/****************************************************************************
#	?	GspcaGui:??Gspca/Spca5xx?Grabber????????????????????????????#
#?		Copyright?（C）?2004?2005?2006?Michel?Xhaard??????????????????#
#???????????????????????????????????????????????????????????????????????????#
#?This?program?is?free?software;?you?can?redistribute?it?and/or?modify??????#
#?it?under?the?terms?of?the?GNU?General?Public?License?as?published?by??????#
#?the?Free?Software?Foundation;?either?version?2?of?the?License?or?????????#
#?（at?your?option）?any?later?version.???????????????????????????????????????#
#???????????????????????????????????????????????????????????????????????????#
#?This?program?is?distributed?in?the?hope?that?it?will?be?useful???????????#
#?but?WITHOUT?ANY?WARRANTY;?without?even?the?implied?warranty?of????????????#
#?MERCHANTABILITY?or?FITNESS?FOR?A?PARTICULAR?PURPOSE.??See?the?????????????#
#?GNU?General?Public?License?for?more?details.??????????????????????????????#
#???????????????????????????????????????????????????????????????????????????#
#?You?should?have?received?a?copy?of?the?GNU?General?Public?License?????????#
#?along?with?this?program;?if?not?write?to?the?Free?Software???????????????#
#?Foundation?Inc.?59?Temple?Place?Suite?330?Boston?MA??02111-1307??USA?#
#???????????????????????????????????????????????????????????????????????????#
****************************************************************************/?
#include?
#include?
#include??
#include?“color.h“

static?int?*LutYr?=?NULL;
static?int?*LutYg?=?NULL;;
static?int?*LutYb?=?NULL;;
static?int?*LutVr?=?NULL;;
static?int?*LutVrY?=?NULL;;
static?int?*LutUb?=?NULL;;
static?int?*LutUbY?=?NULL;;
static?int?*LutRv?=?NULL;
static?int?*LutGu?=?NULL;
static?int?*LutGv?=?NULL;
static?int?*LutBu?=?NULL;

#if?0
#define?RGB24_TO_Y（rgb）?LutYr[（r）]?+?LutYg[（g）]?+?LutYb[（b）]
#define?YR_TO_V（ry）?LutVr[（r）]?+?LutVrY[（y）]
#define?YB_TO_U（by）?LutUb[（b）]?+?LutUbY[（y）]

#define?R_FROMYV（yv）??CLIP（（y）?+?LutRv[（v）]）
#define?G_FROMYUV（yuv）?CLIP（（y）?+?LutGu[（u）]?+?LutGv[（v）]）
#define?B_FROMYU（yu）?CLIP（（y）?+?LutBu[（u）]）
#endif

unsigned?char
RGB24_TO_Y（unsigned?char?r?unsigned?char?g?unsigned?char?b）
{
return?（LutYr[（r）]?+?LutYg[（g）]?+?LutYb[（b）]）;
}
unsigned?char
YR_TO_V（unsigned?char?r?unsigned?char?y）
{
return?（LutVr[（r）]?+?LutVrY[（y）]）;
}
unsigned?char
YB_TO_U（unsigned?char?b?unsigned?char?y）
{
return?（LutUb[（b）]?+?LutUbY[（y）]）;
}
unsigned?char
R_FROMYV（unsigned?char?y?unsigned?char?v）
{
return?CLIP（（y）?+?LutRv[（v）]）;
}
unsigned?char
G_FROMYUV（unsigned?char?y?unsigned?char?u?unsigned?char?v）
{
return?CLIP（（y）?+?LutGu[（u）]?+?LutGv[（v）]）;
}
unsigned?char
B_FROMYU（unsigned?char?y?unsigned?char?u）
{
return?CLIP（（y）?+?LutBu[（u）]）;
}

void?initLut（void）
{
	int?i;
	#define?Rcoef?299?
	#define?Gcoef?587?
	#define?Bcoef?114?
	#define?Vrcoef?711?//656?//877?
	#define?Ubcoef?560?//500?//493?564
	
	#define?CoefRv?1402
	#define?CoefGu?714?//?344
	#define?Co