From c9766d8e286c4dc1e936fb86d7c2da8b36ed7553 Mon Sep 17 00:00:00 2001
From: jpark37 <jpark37@users.noreply.github.com>
Date: Tue, 6 Jul 2021 21:46:13 -0700
Subject: [PATCH] libobs: Add DrawSrgbDecompress default technique

Useful when the texture does not support SRGB conversion on load.
---
 libobs/data/default.effect | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/libobs/data/default.effect b/libobs/data/default.effect
index bc343ad14..86d4c6d82 100644
--- a/libobs/data/default.effect
+++ b/libobs/data/default.effect
@@ -62,6 +62,13 @@ float4 PSDrawNonlinearAlpha(VertInOut vert_in) : TARGET
 	return rgba;
 }
 
+float4 PSDrawSrgbDecompress(VertInOut vert_in) : TARGET
+{
+	float4 rgba = image.Sample(def_sampler, vert_in.uv);
+	rgba.rgb = srgb_nonlinear_to_linear(rgba.rgb);
+	return rgba;
+}
+
 float4 PSDrawSrgbDecompressPremultiplied(VertInOut vert_in) : TARGET
 {
 	float4 rgba = image.Sample(def_sampler, vert_in.uv);
@@ -97,6 +104,15 @@ technique DrawNonlinearAlpha
 	}
 }
 
+technique DrawSrgbDecompress
+{
+	pass
+	{
+		vertex_shader = VSDefault(vert_in);
+		pixel_shader  = PSDrawSrgbDecompress(vert_in);
+	}
+}
+
 technique DrawSrgbDecompressPremultiplied
 {
 	pass