From 47a62e826fe15fce9b7e33f5aa8a04807fe3d172 Mon Sep 17 00:00:00 2001
From: ReinUsesLisp <reinuseslisp@airmail.cc>
Date: Wed, 19 Sep 2018 22:02:11 -0300
Subject: Implement DepthWriteMask and add R16G16 (#425)

---
 Ryujinx.Graphics/Gal/OpenGL/OGLRasterizer.cs | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

(limited to 'Ryujinx.Graphics/Gal/OpenGL/OGLRasterizer.cs')

diff --git a/Ryujinx.Graphics/Gal/OpenGL/OGLRasterizer.cs b/Ryujinx.Graphics/Gal/OpenGL/OGLRasterizer.cs
index ebfba63d..a74aee07 100644
--- a/Ryujinx.Graphics/Gal/OpenGL/OGLRasterizer.cs
+++ b/Ryujinx.Graphics/Gal/OpenGL/OGLRasterizer.cs
@@ -5,6 +5,8 @@ namespace Ryujinx.Graphics.Gal.OpenGL
 {
     class OGLRasterizer : IGalRasterizer
     {
+        public bool DepthWriteEnabled { set; private get; }
+
         private int[] VertexBuffers;
 
         private OGLCachedResource<int> VboCache;
@@ -28,6 +30,8 @@ namespace Ryujinx.Graphics.Gal.OpenGL
             IboCache = new OGLCachedResource<int>(GL.DeleteBuffer);
 
             IndexBuffer = new IbInfo();
+
+            DepthWriteEnabled = true;
         }
 
         public void LockCaches()
@@ -49,6 +53,12 @@ namespace Ryujinx.Graphics.Gal.OpenGL
             float Depth,
             int Stencil)
         {
+            //OpenGL needs glDepthMask to be enabled to clear it
+            if (!DepthWriteEnabled)
+            {
+                GL.DepthMask(true);
+            }
+
             GL.ColorMask(
                 Flags.HasFlag(GalClearBufferFlags.ColorRed),
                 Flags.HasFlag(GalClearBufferFlags.ColorGreen),
@@ -68,6 +78,11 @@ namespace Ryujinx.Graphics.Gal.OpenGL
             }
 
             GL.ColorMask(true, true, true, true);
+
+            if (!DepthWriteEnabled)
+            {
+                GL.DepthMask(false);
+            }
         }
 
         public bool IsVboCached(long Key, long DataSize)
-- 
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