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vulkan: add support for blend buffers

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This commit is contained in:
Julian Orth 2025-02-22 17:18:20 +01:00
parent 1220539a41
commit cb9da22ec2
20 changed files with 638 additions and 78 deletions
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15
src/theme.rs
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@ -120,20 +120,21 @@ impl Color {
[self.r * a, self.g * a, self.b * a, self.a * a]
}
#[expect(dead_code)]
pub fn to_array_linear(self) -> [f32; 4] {
pub fn to_array_linear(self, alpha: Option<f32>) -> [f32; 4] {
fn to_linear(srgb: f32) -> f32 {
if srgb <= 0.04045 {
srgb / 12.92
} else {
(srgb + 0.055 / 1.055).powf(2.4)
((srgb + 0.055) / 1.055).powf(2.4)
}
}
let a1 = if self.a == 0.0 { 1.0 } else { self.a };
let a2 = self.a * alpha.unwrap_or(1.0);
[
to_linear(self.r),
to_linear(self.g),
to_linear(self.b),
self.a,
to_linear(self.r / a1) * a2,
to_linear(self.g / a1) * a2,
to_linear(self.b / a1) * a2,
a2,
]
}