forked from Makuna/NeoPixelBus
89 lines
1.6 KiB
C++
89 lines
1.6 KiB
C++
/*--------------------------------------------------------------------
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NeoPixel is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as
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published by the Free Software Foundation, either version 3 of
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the License, or (at your option) any later version.
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NeoPixel is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with NeoPixel. If not, see
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<http://www.gnu.org/licenses/>.
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--------------------------------------------------------------------*/
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#include "RgbColor.h"
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uint8_t RgbColor::CalculateBrightness()
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{
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return (uint8_t)(((uint16_t)R + (uint16_t)G + (uint16_t)B) / 3);
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}
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void RgbColor::Darken(uint8_t delta)
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{
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if (R > delta)
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{
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R -= delta;
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}
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else
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{
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R = 0;
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}
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if (G > delta)
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{
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G -= delta;
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}
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else
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{
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G = 0;
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}
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if (B > delta)
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{
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B -= delta;
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}
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else
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{
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B = 0;
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}
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}
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void RgbColor::Lighten(uint8_t delta)
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{
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if (R < 255 - delta)
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{
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R += delta;
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}
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else
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{
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R = 255;
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}
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if (G < 255 - delta)
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{
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G += delta;
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}
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else
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{
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G = 255;
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}
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if (B < 255 - delta)
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{
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B += delta;
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}
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else
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{
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B = 255;
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}
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}
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RgbColor RgbColor::LinearBlend(RgbColor left, RgbColor right, uint8_t progress)
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{
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return RgbColor( left.R + ((right.R - left.R) * progress / 255),
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left.G + ((right.G - left.G) * progress / 255),
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left.B + ((right.B - left.B) * progress / 255));
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} |