From 49b9cc361df1a8f4dc0eb58c99a0d1b64206b304 Mon Sep 17 00:00:00 2001
From: galister <22305755+galister@users.noreply.github.com>
Date: Sun, 10 Mar 2024 00:02:10 +0100
Subject: [PATCH] x11: fix screen gamma

---
 src/shaders/mod.rs | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/shaders/mod.rs b/src/shaders/mod.rs
index 7ada000..6e41acc 100644
--- a/src/shaders/mod.rs
+++ b/src/shaders/mod.rs
@@ -94,6 +94,12 @@ pub mod frag_screen {
             void main()
             {
                 out_color = texture(in_texture, in_uv);
+
+                // linear to srgb
+                bvec4 cutoff = lessThan(out_color, vec4(0.0031308));
+                vec4 higher = (pow(out_color, vec4(0.41666)) * vec4(1.055)) - vec4(0.055);
+                vec4 lower = out_color*vec4(12.92);
+                out_color = mix(higher, lower, cutoff);
                 out_color.a = 1.0;
             }
         ",