From 5ae8ce807abbf6eab1113a36e190df50ffc2f9c1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?F=C3=A9lix=20Poisot?= <felix@lhfblc.fr>
Date: Tue, 23 Jan 2024 19:54:22 +0000
Subject: [PATCH] render/vulkan: correct sRBG gamma expansion in shader

---
 render/vulkan/shaders/texture.frag | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/render/vulkan/shaders/texture.frag b/render/vulkan/shaders/texture.frag
index eab2c2d1..6f2f347d 100644
--- a/render/vulkan/shaders/texture.frag
+++ b/render/vulkan/shaders/texture.frag
@@ -16,7 +16,9 @@ layout (constant_id = 0) const int TEXTURE_TRANSFORM = 0;
 #define TEXTURE_TRANSFORM_SRGB 1
 
 float srgb_channel_to_linear(float x) {
-	return max(x / 12.92, pow((x + 0.055) / 1.055, 2.4));
+	return mix(x / 12.92,
+		pow((x + 0.055) / 1.055, 2.4),
+		x > 0.04045);
 }
 
 vec4 srgb_color_to_linear(vec4 color) {