78 lines
2.6 KiB
C++
78 lines
2.6 KiB
C++
#pragma once
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#include "fl/stdint.h"
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#include "fl/int.h"
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#include "crgb.h"
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#include "fl/geometry.h"
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#include "fl/gradient.h"
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#include "fl/namespace.h"
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#include "fl/unused.h"
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#include "fl/xymap.h"
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#include "fl/move.h"
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namespace fl {
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// Draws a fl::u8 value to a CRGB array, blending it with the existing color.
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struct XYDrawComposited {
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XYDrawComposited(const CRGB &color, const XYMap &xymap, CRGB *out);
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// Copy constructor (assignment deleted due to const members)
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XYDrawComposited(const XYDrawComposited &other) = default;
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XYDrawComposited &operator=(const XYDrawComposited &other) = delete;
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// Move constructor (assignment deleted due to const members)
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XYDrawComposited(XYDrawComposited &&other) noexcept
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: mColor(fl::move(other.mColor)), mXYMap(fl::move(other.mXYMap)), mOut(other.mOut) {}
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XYDrawComposited &operator=(XYDrawComposited &&other) noexcept = delete;
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void draw(const vec2<fl::u16> &pt, fl::u32 index, fl::u8 value);
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const CRGB mColor;
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const XYMap mXYMap;
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CRGB *mOut;
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};
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struct XYDrawGradient {
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XYDrawGradient(const Gradient &gradient, const XYMap &xymap, CRGB *out);
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// Copy constructor (assignment deleted due to const members)
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XYDrawGradient(const XYDrawGradient &other) = default;
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XYDrawGradient &operator=(const XYDrawGradient &other) = delete;
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// Move constructor (assignment deleted due to const members)
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XYDrawGradient(XYDrawGradient &&other) noexcept
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: mGradient(fl::move(other.mGradient)), mXYMap(fl::move(other.mXYMap)), mOut(other.mOut) {}
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XYDrawGradient &operator=(XYDrawGradient &&other) noexcept = delete;
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void draw(const vec2<fl::u16> &pt, fl::u32 index, fl::u8 value);
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const Gradient mGradient;
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const XYMap mXYMap;
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CRGB *mOut;
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};
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inline XYDrawComposited::XYDrawComposited(const CRGB &color, const XYMap &xymap,
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CRGB *out)
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: mColor(color), mXYMap(xymap), mOut(out) {}
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inline void XYDrawComposited::draw(const vec2<fl::u16> &pt, fl::u32 index,
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fl::u8 value) {
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FASTLED_UNUSED(pt);
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CRGB &c = mOut[index];
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CRGB blended = mColor;
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blended.fadeToBlackBy(255 - value);
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c = CRGB::blendAlphaMaxChannel(blended, c);
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}
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inline XYDrawGradient::XYDrawGradient(const Gradient &gradient,
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const XYMap &xymap, CRGB *out)
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: mGradient(gradient), mXYMap(xymap), mOut(out) {}
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inline void XYDrawGradient::draw(const vec2<fl::u16> &pt, fl::u32 index,
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fl::u8 value) {
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FASTLED_UNUSED(pt);
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CRGB c = mGradient.colorAt(value);
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mOut[index] = c;
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}
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} // namespace fl
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