From 6c44eadf770bcea0b5675986c45ebef4c64bc418 Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Tue, 26 Aug 2025 19:14:06 +0530
Subject: [PATCH] Directly operate on vec3 for linear2srgb

---
 kitty/linear2srgb.glsl | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/kitty/linear2srgb.glsl b/kitty/linear2srgb.glsl
index 637632d55..63e2fe5c0 100644
--- a/kitty/linear2srgb.glsl
+++ b/kitty/linear2srgb.glsl
@@ -14,8 +14,10 @@ float linear2srgb(float x) {
     return mix(lower, upper, step(0.0031308f, x));
 }
 
-vec3 linear2srgb(vec3 c) {
-    return vec3(linear2srgb(c.r), linear2srgb(c.g), linear2srgb(c.b));
+vec3 linear2srgb(vec3 x) {
+    vec3 lower = 12.92 * x;
+    vec3 upper = 1.055 * pow(x, vec3(1.0f / 2.4f)) - 0.055f;
+    return mix(lower, upper, step(0.0031308f, x));
 }
 
 vec3 srgb2linear(vec3 c) {