From 1552fc843ac2157087d71a942eb4d7cbada083ec Mon Sep 17 00:00:00 2001
From: Harald Csaszar <harald.csaszar@pixelcloudgames.com>
Date: Tue, 13 Dec 2022 18:43:47 +0100
Subject: [PATCH] [unity] Fixed blend mode shaders being broken on Unity 2017.
 Closes #2212.

---
 .../Shaders/BlendModes/Spine-Skeleton-PMA-Additive.shader  | 7 +++++++
 .../Shaders/BlendModes/Spine-Skeleton-PMA-Multiply.shader  | 7 +++++++
 .../Shaders/BlendModes/Spine-Skeleton-PMA-Screen.shader    | 7 +++++++
 .../Shaders/CGIncludes/Spine-BlendModes-NormalPass.cginc   | 3 ---
 .../CGIncludes/Spine-BlendModes-ShadowCasterPass.cginc     | 4 ----
 5 files changed, 21 insertions(+), 7 deletions(-)

diff --git a/spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/BlendModes/Spine-Skeleton-PMA-Additive.shader b/spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/BlendModes/Spine-Skeleton-PMA-Additive.shader
index 95f608a33..3e962ac2c 100644
--- a/spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/BlendModes/Spine-Skeleton-PMA-Additive.shader
+++ b/spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/BlendModes/Spine-Skeleton-PMA-Additive.shader
@@ -44,6 +44,9 @@ Shader "Spine/Blend Modes/Skeleton PMA Additive" {
 		Pass {
 			Name "Normal"
 			CGPROGRAM
+			#pragma vertex vert
+			#pragma fragment frag
+			#pragma shader_feature _ _STRAIGHT_ALPHA_INPUT
 			#include "../CGIncludes/Spine-BlendModes-NormalPass.cginc"
 			ENDCG
 		}
@@ -57,6 +60,10 @@ Shader "Spine/Blend Modes/Skeleton PMA Additive" {
 			ZTest LEqual
 
 			CGPROGRAM
+			#pragma vertex vert
+			#pragma fragment frag
+			#pragma multi_compile_shadowcaster
+			#pragma fragmentoption ARB_precision_hint_fastest
 			#include "../CGIncludes/Spine-BlendModes-ShadowCasterPass.cginc"
 			ENDCG
 		}
diff --git a/spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/BlendModes/Spine-Skeleton-PMA-Multiply.shader b/spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/BlendModes/Spine-Skeleton-PMA-Multiply.shader
index 0fa270294..7261ba339 100644
--- a/spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/BlendModes/Spine-Skeleton-PMA-Multiply.shader
+++ b/spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/BlendModes/Spine-Skeleton-PMA-Multiply.shader
@@ -44,6 +44,9 @@ Shader "Spine/Blend Modes/Skeleton PMA Multiply" {
 		Pass {
 			Name "Normal"
 			CGPROGRAM
+			#pragma vertex vert
+			#pragma fragment frag
+			#pragma shader_feature _ _STRAIGHT_ALPHA_INPUT
 			#include "../CGIncludes/Spine-BlendModes-NormalPass.cginc"
 			ENDCG
 		}
@@ -57,6 +60,10 @@ Shader "Spine/Blend Modes/Skeleton PMA Multiply" {
 			ZTest LEqual
 
 			CGPROGRAM
+			#pragma vertex vert
+			#pragma fragment frag
+			#pragma multi_compile_shadowcaster
+			#pragma fragmentoption ARB_precision_hint_fastest
 			#include "../CGIncludes/Spine-BlendModes-ShadowCasterPass.cginc"
 			ENDCG
 		}
diff --git a/spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/BlendModes/Spine-Skeleton-PMA-Screen.shader b/spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/BlendModes/Spine-Skeleton-PMA-Screen.shader
index 9ddb59854..ce9306480 100644
--- a/spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/BlendModes/Spine-Skeleton-PMA-Screen.shader
+++ b/spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/BlendModes/Spine-Skeleton-PMA-Screen.shader
@@ -44,6 +44,9 @@ Shader "Spine/Blend Modes/Skeleton PMA Screen" {
 		Pass {
 			Name "Normal"
 			CGPROGRAM
+			#pragma vertex vert
+			#pragma fragment frag
+			#pragma shader_feature _ _STRAIGHT_ALPHA_INPUT
 			#include "../CGIncludes/Spine-BlendModes-NormalPass.cginc"
 			ENDCG
 		}
@@ -57,6 +60,10 @@ Shader "Spine/Blend Modes/Skeleton PMA Screen" {
 			ZTest LEqual
 
 			CGPROGRAM
+			#pragma vertex vert
+			#pragma fragment frag
+			#pragma multi_compile_shadowcaster
+			#pragma fragmentoption ARB_precision_hint_fastest
 			#include "../CGIncludes/Spine-BlendModes-ShadowCasterPass.cginc"
 			ENDCG
 		}
diff --git a/spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/CGIncludes/Spine-BlendModes-NormalPass.cginc b/spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/CGIncludes/Spine-BlendModes-NormalPass.cginc
index 9f6f85b53..297b469f6 100644
--- a/spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/CGIncludes/Spine-BlendModes-NormalPass.cginc
+++ b/spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/CGIncludes/Spine-BlendModes-NormalPass.cginc
@@ -1,9 +1,6 @@
 #ifndef BLENDMODES_NORMAL_PASS_INCLUDED
 #define BLENDMODES_NORMAL_PASS_INCLUDED
 
-#pragma shader_feature _ _STRAIGHT_ALPHA_INPUT
-#pragma vertex vert
-#pragma fragment frag
 #include "UnityCG.cginc"
 #include "../CGIncludes/Spine-Common.cginc"
 uniform sampler2D _MainTex;
diff --git a/spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/CGIncludes/Spine-BlendModes-ShadowCasterPass.cginc b/spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/CGIncludes/Spine-BlendModes-ShadowCasterPass.cginc
index a6c22c458..4021511d6 100644
--- a/spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/CGIncludes/Spine-BlendModes-ShadowCasterPass.cginc
+++ b/spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/CGIncludes/Spine-BlendModes-ShadowCasterPass.cginc
@@ -1,10 +1,6 @@
 #ifndef BLENDMODES_SHADOWCASTER_PASS_INCLUDED
 #define BLENDMODES_SHADOWCASTER_PASS_INCLUDED
 
-#pragma vertex vert
-#pragma fragment frag
-#pragma multi_compile_shadowcaster
-#pragma fragmentoption ARB_precision_hint_fastest
 #include "UnityCG.cginc"
 struct v2f {
 	V2F_SHADOW_CASTER;