/*
 * hsv_rgb.c
 *
 *  Created on: 15.10.2011
 *      Author: Frank
 */
#include "hsv_rgb.h"

void hsv_to_rgb12(colorstruc *value)
{
	uint16_t q;
	uint16_t p;
	uint16_t t;

	uint8_t i;
	uint16_t f;

	if( value->S == 0 )
 	{
		value->Pin_R = value->V;
		value->Pin_G = value->V;
		value->Pin_B = value->V;
	}
	else
	{	i = value->H / 683;
		f = value->H % 683;
		p = (uint16_t)( ( value->V * ( 4095 - value->S ) ) / 4096 );
		q = (uint16_t)( ( value->V * ( ( 2796885 - ( value->S * f ) ) / 683 ) ) / 4096 );
		t = (uint16_t)( ( ( value->V * ( ( 2796885 - ( value->S * ( 683 - ( (uint32_t)f ) ) ) ) / 683 ) ) ) / 4096 );

	switch( i )
		 {
			case 0:
				value->Pin_R = value->V; value->Pin_G = t; value->Pin_B = p; break;

			case 1:
				value->Pin_R = q; value->Pin_G = value->V; value->Pin_B = p; break;

			case 2:
				value->Pin_R = p; value->Pin_G = value->V; value->Pin_B = t; break;

			case 3:
				value->Pin_R = p; value->Pin_G = q; value->Pin_B = value->V; break;

			case 4:
				value->Pin_R = t; value->Pin_G = p; value->Pin_B = value->V; break;

			default:
				value->Pin_R = value->V; value->Pin_G = p; value->Pin_B = q; break;
		 }
	}
}