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render: dim/brighten: multiply/divide instead of add/subtract

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Daniel Eklöf 2020-11-15 21:04:21 +01:00
parent 2b8e2b3506
commit 690cf0ab54
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GPG key ID: 5BBD4992C116573F
1 changed files with 2 additions and 2 deletions
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render.c
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@ -237,7 +237,7 @@ color_dim(uint32_t color)
{
int hue, sat, lum;
rgb_to_hsl(color, &hue, &sat, &lum);
return hsl_to_rgb(hue, sat, max(0, lum - 15));
return hsl_to_rgb(hue, sat, lum / 1.5);
}
static inline uint32_t
@ -245,7 +245,7 @@ color_brighten(uint32_t color)
{
int hue, sat, lum;
rgb_to_hsl(color, &hue, &sat, &lum);
return hsl_to_rgb(hue, sat, min(100, lum + 15));
return hsl_to_rgb(hue, sat, min(100, lum * 1.3));
}
static inline void