68 lines
2.1 KiB
C++
68 lines
2.1 KiB
C++
#pragma once
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#include <vector>
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class Fader
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{
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public:
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struct Color {
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int16_t r, g, b, w;
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Color(int16_t ir = 0, int16_t ig = 0, int16_t ib = 0, int16_t iw = 0) : r(ir), g(ig), b(ib), w(iw) {}
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void operator += (const Color &color)
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{
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this->r += color.r;
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this->g += color.g;
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this->b += color.b;
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this->w += color.w;
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}
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void normalize(void)
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{
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if(r > 255) { r = 255; } else if (r < 0) { r = 0; };
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if(g > 255) { g = 255; } else if (g < 0) { g = 0; };
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if(b > 255) { b = 255; } else if (b < 0) { b = 0; };
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if(w > 255) { w = 255; } else if (w < 0) { w = 0; };
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}
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};
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Fader(std::size_t nmodules, uint8_t fadestep = 1);
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void set_color(uint32_t module, const Color &color);
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void fade_color(uint32_t module, const Color &color);
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void add_color(uint32_t module, const Color &color);
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void set_color(const Color &color); // for all LEDs
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void fade_color(const Color &color); // for all LEDs
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void add_color(const Color &color); // for all LEDs
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void set_fadestep(uint8_t newFadestep);
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void update(void);
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/*!
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* \returns Whether any color value has changed since the last call to getColorValues().
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*/
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bool something_changed(void) const {return m_somethingChanged; };
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const std::vector<Color>& get_color_values(void) {
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m_somethingChanged = false;
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return m_curColor;
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}
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private:
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/*!
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* Fade the colour value in cur towards target.
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*
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* \param cur The colour value to update.
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* \param target The target value that should be reached.
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* \returns Whether the value was actually changed.
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*/
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bool update_fade(int16_t *cur, const int16_t *target);
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uint8_t m_fadestep;
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bool m_somethingChanged;
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std::vector<Color> m_curColor;
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std::vector<Color> m_targetColor;
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}; |