From 1e2ac40507366436ea460fc7d1b3fcc323372f93 Mon Sep 17 00:00:00 2001
From: hecomi <info@hecomi.com>
Date: Thu, 27 Oct 2016 19:18:44 +0900
Subject: [PATCH] support linear color.

---
 Assets/uDesktopDuplication/Shaders/uDD_Common.cginc  | 12 ++++++++++++
 .../uDesktopDuplication/Shaders/uDD_Standard.shader  |  3 +--
 Assets/uDesktopDuplication/Shaders/uDD_Unlit.shader  |  3 +--
 .../Shaders/uDD_Unlit_BlackMask.shader               |  3 +--
 .../Shaders/uDD_Unlit_Transparent.shader             |  3 +--
 README.md                                            |  2 +-
 6 files changed, 17 insertions(+), 9 deletions(-)

diff --git a/Assets/uDesktopDuplication/Shaders/uDD_Common.cginc b/Assets/uDesktopDuplication/Shaders/uDD_Common.cginc
index f97d8e7..8cfda5c 100644
--- a/Assets/uDesktopDuplication/Shaders/uDD_Common.cginc
+++ b/Assets/uDesktopDuplication/Shaders/uDD_Common.cginc
@@ -1,6 +1,8 @@
 #ifndef UDD_COMMON_CGINC
 #define UDD_COMMON_CGINC
 
+#include "UnityCG.cginc"
+
 inline void uddInvertUV(inout float2 uv)
 {
 #ifdef INVERT_X
@@ -11,4 +13,14 @@ inline void uddInvertUV(inout float2 uv)
 #endif
 }
 
+inline fixed4 uddGetTexture(sampler2D tex, float2 uv)
+{
+    uddInvertUV(uv);
+    fixed4 c = tex2D(tex, uv);
+    if (!IsGammaSpace()) {
+        c.rgb = GammaToLinearSpace(c.rgb);
+    }
+    return c;
+}
+
 #endif
\ No newline at end of file
diff --git a/Assets/uDesktopDuplication/Shaders/uDD_Standard.shader b/Assets/uDesktopDuplication/Shaders/uDD_Standard.shader
index 64d971e..9c80e7f 100644
--- a/Assets/uDesktopDuplication/Shaders/uDD_Standard.shader
+++ b/Assets/uDesktopDuplication/Shaders/uDD_Standard.shader
@@ -35,8 +35,7 @@ SubShader
 
     void surf(Input IN, inout SurfaceOutputStandard o) 
     {
-        uddInvertUV(IN.uv_MainTex);
-        fixed4 c = tex2D (_MainTex, IN.uv_MainTex) * _Color;
+        fixed4 c = uddGetTexture(_MainTex, IN.uv_MainTex) * _Color;
         o.Albedo = c.rgb;
         o.Metallic = _Metallic;
         o.Smoothness = _Glossiness;
diff --git a/Assets/uDesktopDuplication/Shaders/uDD_Unlit.shader b/Assets/uDesktopDuplication/Shaders/uDD_Unlit.shader
index c62f7c0..40516af 100644
--- a/Assets/uDesktopDuplication/Shaders/uDD_Unlit.shader
+++ b/Assets/uDesktopDuplication/Shaders/uDD_Unlit.shader
@@ -43,8 +43,7 @@ v2f vert(appdata v)
 
 fixed4 frag(v2f i) : SV_Target
 {
-    uddInvertUV(i.uv);
-    return tex2D(_MainTex, i.uv) * _Color;
+    return uddGetTexture(_MainTex, i.uv) * _Color;
 }
 
 ENDCG
diff --git a/Assets/uDesktopDuplication/Shaders/uDD_Unlit_BlackMask.shader b/Assets/uDesktopDuplication/Shaders/uDD_Unlit_BlackMask.shader
index 1f60f44..fbbbf96 100644
--- a/Assets/uDesktopDuplication/Shaders/uDD_Unlit_BlackMask.shader
+++ b/Assets/uDesktopDuplication/Shaders/uDD_Unlit_BlackMask.shader
@@ -48,8 +48,7 @@ v2f vert(appdata v)
 
 fixed4 frag(v2f i) : SV_Target
 {
-    uddInvertUV(i.uv);
-    fixed4 tex = tex2D(_MainTex, i.uv);
+    fixed4 tex = uddGetTexture(_MainTex, i.uv);
     fixed alpha = pow((tex.r + tex.g + tex.b) / 3.0, _Mask);
     return fixed4(tex.rgb * _Color.rgb, alpha);
 }
diff --git a/Assets/uDesktopDuplication/Shaders/uDD_Unlit_Transparent.shader b/Assets/uDesktopDuplication/Shaders/uDD_Unlit_Transparent.shader
index a6d042e..56cc858 100644
--- a/Assets/uDesktopDuplication/Shaders/uDD_Unlit_Transparent.shader
+++ b/Assets/uDesktopDuplication/Shaders/uDD_Unlit_Transparent.shader
@@ -46,8 +46,7 @@ v2f vert(appdata v)
 
 fixed4 frag(v2f i) : SV_Target
 {
-    uddInvertUV(i.uv);
-    return fixed4(tex2D(_MainTex, i.uv).rgb, 1.0) * _Color;
+    return fixed4(uddGetTexture(_MainTex, i.uv).rgb, 1.0) * _Color;
 }
 
 ENDCG
diff --git a/README.md b/README.md
index a550f3f..8ed3a86 100644
--- a/README.md
+++ b/README.md
@@ -29,7 +29,7 @@ TODOs
 -----
 - [x] Mouse cursor
 - [ ] Monitor selector
-- [ ] Support linear color
+- [x] Support linear color
 
 Please request new features you want to issues.