From 3bd357045f7581ee10d6c86ed8049bcebe35eda0 Mon Sep 17 00:00:00 2001
From: gdkchan <gab.dark.100@gmail.com>
Date: Wed, 16 Feb 2022 19:15:39 -0300
Subject: Do not allow render targets not explicitly written by the fragment
 shader to be modified (#3063)

* Do not allow render targets not explicitly written by the fragment shader to be modified

* Shader cache version bump

* Remove blank lines

* Avoid redundant color mask updates

* HostShaderCacheEntry can be null

* Avoid more redundant glColorMask calls

* nit: Mask -> Masks

* Fix currentComponentMask

* More efficient way to update _currentComponentMasks
---
 Ryujinx.Graphics.OpenGL/Program.cs | 23 ++++++++++++++++-------
 1 file changed, 16 insertions(+), 7 deletions(-)

(limited to 'Ryujinx.Graphics.OpenGL/Program.cs')

diff --git a/Ryujinx.Graphics.OpenGL/Program.cs b/Ryujinx.Graphics.OpenGL/Program.cs
index 95902990..838162cc 100644
--- a/Ryujinx.Graphics.OpenGL/Program.cs
+++ b/Ryujinx.Graphics.OpenGL/Program.cs
@@ -1,11 +1,8 @@
 using OpenTK.Graphics.OpenGL;
 using Ryujinx.Common.Logging;
 using Ryujinx.Graphics.GAL;
-using Ryujinx.Graphics.Shader.CodeGen.Glsl;
 using System;
 using System.Buffers.Binary;
-using System.Collections.Generic;
-using System.Linq;
 
 namespace Ryujinx.Graphics.OpenGL
 {
@@ -29,7 +26,10 @@ namespace Ryujinx.Graphics.OpenGL
         private ProgramLinkStatus _status = ProgramLinkStatus.Incomplete;
         private IShader[] _shaders;
 
-        public Program(IShader[] shaders)
+        public bool HasFragmentShader;
+        public int FragmentOutputMap { get; }
+
+        public Program(IShader[] shaders, int fragmentOutputMap)
         {
             Handle = GL.CreateProgram();
 
@@ -37,17 +37,23 @@ namespace Ryujinx.Graphics.OpenGL
 
             for (int index = 0; index < shaders.Length; index++)
             {
-                int shaderHandle = ((Shader)shaders[index]).Handle;
+                Shader shader = (Shader)shaders[index];
 
-                GL.AttachShader(Handle, shaderHandle);
+                if (shader.IsFragment)
+                {
+                    HasFragmentShader = true;
+                }
+
+                GL.AttachShader(Handle, shader.Handle);
             }
 
             GL.LinkProgram(Handle);
 
             _shaders = shaders;
+            FragmentOutputMap = fragmentOutputMap;
         }
 
-        public Program(ReadOnlySpan<byte> code)
+        public Program(ReadOnlySpan<byte> code, bool hasFragmentShader, int fragmentOutputMap)
         {
             BinaryFormat binaryFormat = (BinaryFormat)BinaryPrimitives.ReadInt32LittleEndian(code.Slice(code.Length - 4, 4));
 
@@ -60,6 +66,9 @@ namespace Ryujinx.Graphics.OpenGL
                     GL.ProgramBinary(Handle, binaryFormat, (IntPtr)ptr, code.Length - 4);
                 }
             }
+
+            HasFragmentShader = hasFragmentShader;
+            FragmentOutputMap = fragmentOutputMap;
         }
 
         public void Bind()
-- 
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