/**** Includes ****/
#include "display.h"

/**** Private definitions ****/
/**** Private constants ****/
static const uint8_t BACKLIGHT_DIMM = DSP_BACKLIGHT_DIMM_PERCENT;
static const uint8_t BACKLIGHT_BRIGTH = DSP_BACKLIGHT_BRIGTH_PERCENT;

/**** Private variables ****/
/**** Private function declarations ****/
static uint8_t img_gen_dot10(uint8_t percent);
static uint8_t img_gen_dot20(uint8_t percent);
static uint8_t img_gen_bar(uint8_t percent);

/**** Public function definitions ****/
void dsp_init_ctrl(dsp_ctrl_t* ctrl)
{
	ctrl->img_lock = 0;
	ctrl->act_img = 0x00;
}

void dsp_set_lock(dsp_ctrl_t* ctrl)
{
	ctrl->img_lock = 1;
}

void dsp_reset_lock(dsp_ctrl_t* ctrl)
{
	ctrl->img_lock = 0;
}

uint8_t dsp_img_percent(uint8_t value, dsp_style_t style, dsp_ctrl_t* ctrl)
{
	if(ctrl->img_lock) return ctrl->act_img;
	
	switch(style)
	{
		case LED_DSP_BAR:
		ctrl->act_img = img_gen_bar(value);
		break;
		
		case LED_DSP_DOT10:
		ctrl->act_img = img_gen_dot10(value);
		break;
		
		default:
		ctrl->act_img = img_gen_dot20(value);
		break;
	}
	
	return ctrl->act_img;
}

uint8_t dsp_img_raw(uint8_t image, dsp_ctrl_t* ctrl)
{
	if(ctrl->img_lock) return ctrl->act_img;
	
	ctrl->act_img = image & 0x3F;
	
	return ctrl->act_img;
}

uint8_t dsp_get_act_img(dsp_ctrl_t* ctrl)
{
	return ctrl->act_img;
}

uint8_t dsp_backlight(uint8_t dimm_act)
{
	if(dimm_act) return BACKLIGHT_DIMM;
	else return BACKLIGHT_BRIGTH;
}

/**** Private function definitions ****/
static uint8_t img_gen_dot10(uint8_t percent)
{
	if(percent<6) return 0x01;
	else if(percent<16) return 0x03;
	else if(percent<26) return 0x02;
	else if(percent<36) return 0x06;
	else if(percent<46) return 0x04;
	else if(percent<56) return 0x0C;
	else if(percent<66) return 0x08;
	else if(percent<76) return 0x18;
	else if(percent<86) return 0x10;
	else if(percent<96) return 0x30;
	else return 0x20;
}

static uint8_t img_gen_dot20(uint8_t percent)
{
	if(percent<11) return 0x01;
	else if(percent<31) return 0x02;
	else if(percent<51) return 0x04;
	else if(percent<71) return 0x08;
	else if(percent<91) return 0x10;
	else return 0x20;
}

static uint8_t img_gen_bar(uint8_t percent)
{
	if(percent<11) return 0x01;
	else if(percent<31) return 0x03;
	else if(percent<51) return 0x07;
	else if(percent<71) return 0x0F;
	else if(percent<91) return 0x1F;
	else return 0x3F;
}