/*
    epple2
    Copyright (C) 2008 by Christopher A. Mosher <cmosher01@gmail.com>

    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 3 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, see <http://www.gnu.org/licenses/>.
*/
#ifndef ANALOGTV_H
#define ANALOGTV_H

#include "applentsc.h"
#include "a2colorsobserved.h"

#include <vector>


class ScreenImage;
class IQ;
class CB;

class AnalogTV
{
public:
    enum DisplayType
    {
        TV_OLD_COLOR,
        MONITOR_COLOR,
        MONITOR_GREEN,

        NUM_DISPLAY_TYPES
    };

private:
    ScreenImage& image;

    bool on;
    bool noise;
    DisplayType type;

    static int* rcb;

    A2ColorsObserved colors;
    std::vector<unsigned int> hirescolor;
    std::vector<unsigned int> loreslightcolor;
    std::vector<unsigned int> loresdarkcolor;

    static const int IQINTOFF;
    static const double IQ_OFFSET_DEGREES;
    static const double IQ_OFFSET_RADIANS;
    static const double TINT_I;
    static const double TINT_Q;
    static const double COLOR_THRESH;
    static const IQ& BLACK_AND_WHITE;

    void drawMonitorColor();
    void drawMonitorWhite();
    void drawMonitorGreen();
    void drawMonitorOrange();
    void drawMonitorMonochrome(const unsigned int color);
    void drawTVOld();
    void drawTVNew();
    void drawBlank();
    void ntsc_to_rgb_monitor(const int isignal, const int siglen, unsigned int rgb[]);
    void ntsc_to_rgb_newtv(const int isignal, const int siglen, unsigned int rgb[]);
    CB get_cb(int lineno);
    IQ get_iq_factor(const CB& cb);
    void ntsc_to_yiq(const int isignal, const int siglen, const IQ& iq_factor, int yiq[]);
    static int yiq2rgb(const int yiq);
    static int color2bw(const int rgb);
    static int rgb2y(const int rgb); // ;y in range 0-255
    static int calc_color(const double color);
    static int clamp(int min, int x, int lim);

public:
    void drawCurrent();
    signed char* signal;

    AnalogTV(ScreenImage& image);
    ~AnalogTV();

    bool isOn() const
    {
        return this->on;
    }

    void powerOn(bool b);
    void restartSignal();
    void setType(DisplayType type);
    void cycleType();
    void setNoise(bool noise) { this->noise = noise; }
};

#endif