color_convert.h

/*
   This file is part of Retro Graphics Toolkit

   Retro Graphics Toolkit 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 3 of the License, or any later version.

   Retro Graphics Toolkit 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 Retro Graphics Toolkit. If not, see <http://www.gnu.org/licenses/>.
   Copyright Sega16 (or whatever you wish to call me) (2012-2018)
*/
//Color conversion functions should go here
#pragma once
#include <stdint.h>
#include "nespal.h"
#include "project.h"
extern uint8_t nespaltab[];
extern uint8_t nespaltab_alt[];
unsigned nearest_color_index(int val, unsigned startindex);
unsigned nearest_color_index(int val);
void rgbToHsl255(unsigned r, unsigned g, unsigned b, double * hh, double * ll, double * ss);
void rgbToHsl(double r, double g, double b, double * hh, double * ll, double * ss);
void hslToRgb(double hue, double s, double l, uint8_t&r, uint8_t&g, uint8_t&b);
uint32_t count_colors(uint8_t * image_ptr, uint32_t w, uint32_t h, uint8_t *colors_found, bool useAlpha = false);
void updateEmphasisCB(Fl_Widget*, void*);
static inline uint32_t toNesRgb(uint8_t ri, uint8_t gi, uint8_t bi) {
	return nesPalToRgb(currentProject->pal->to_nes_color_rgb(ri, gi, bi));
}
void updateNesTab(unsigned emps, bool alt);
static inline double pickIt(double h, double s, double l, unsigned type) {
	switch (type) {
		case 0:
			return h;
			break;

		case 1:
			return s;
			break;

		case 2:
			return l;
			break;

		default:
			return 0.;
	}
}