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[color] Use integer math in Color::gradient to reduce code size (#14354)

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This commit is contained in:
J. Nick Koston
2026-02-27 12:25:13 -07:00
committed by GitHub
parent 8698b01bc7
commit 9c1d1a0d9f
1 changed files with 5 additions and 5 deletions
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10
esphome/core/color.cpp
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@@ -7,12 +7,12 @@ constinit const Color Color::BLACK(0, 0, 0, 0);
constinit const Color Color::WHITE(255, 255, 255, 255);
Color Color::gradient(const Color &to_color, uint8_t amnt) {
uint8_t inv = 255 - amnt;
Color new_color;
float amnt_f = float(amnt) / 255.0f;
new_color.r = amnt_f * (to_color.r - this->r) + this->r;
new_color.g = amnt_f * (to_color.g - this->g) + this->g;
new_color.b = amnt_f * (to_color.b - this->b) + this->b;
new_color.w = amnt_f * (to_color.w - this->w) + this->w;
new_color.r = (uint16_t(this->r) * inv + uint16_t(to_color.r) * amnt) / 255;
new_color.g = (uint16_t(this->g) * inv + uint16_t(to_color.g) * amnt) / 255;
new_color.b = (uint16_t(this->b) * inv + uint16_t(to_color.b) * amnt) / 255;
new_color.w = (uint16_t(this->w) * inv + uint16_t(to_color.w) * amnt) / 255;
return new_color;
}