From 461c24092ae6e148d896c18aa3e86220c89981f8 Mon Sep 17 00:00:00 2001
From: riperiperi <rhy3756547@hotmail.com>
Date: Tue, 1 Dec 2020 23:13:27 +0000
Subject: Implement Force Early Z Register (#1755)

---
 Ryujinx.Graphics.Gpu/Shader/Cache/CacheHelper.cs       | 18 ++++++++++++++++++
 .../Shader/Cache/Definition/GuestGpuAccessorHeader.cs  |  4 ++--
 .../Shader/Cache/Definition/GuestGpuStateFlags.cs      | 10 ++++++++++
 3 files changed, 30 insertions(+), 2 deletions(-)
 create mode 100644 Ryujinx.Graphics.Gpu/Shader/Cache/Definition/GuestGpuStateFlags.cs

(limited to 'Ryujinx.Graphics.Gpu/Shader/Cache')

diff --git a/Ryujinx.Graphics.Gpu/Shader/Cache/CacheHelper.cs b/Ryujinx.Graphics.Gpu/Shader/Cache/CacheHelper.cs
index 1d492214..d10e4671 100644
--- a/Ryujinx.Graphics.Gpu/Shader/Cache/CacheHelper.cs
+++ b/Ryujinx.Graphics.Gpu/Shader/Cache/CacheHelper.cs
@@ -332,6 +332,23 @@ namespace Ryujinx.Graphics.Gpu.Shader.Cache
             return null;
         }
 
+        /// <summary>
+        /// Builds gpu state flags using information from the given gpu accessor.
+        /// </summary>
+        /// <param name="gpuAccessor">The gpu accessor</param>
+        /// <returns>The gpu state flags</returns>
+        private static GuestGpuStateFlags GetGpuStateFlags(IGpuAccessor gpuAccessor)
+        {
+            GuestGpuStateFlags flags = 0;
+
+            if (gpuAccessor.QueryEarlyZForce())
+            {
+                flags |= GuestGpuStateFlags.EarlyZForce;
+            }
+
+            return flags;
+        }
+
         /// <summary>
         /// Create a new instance of <see cref="GuestGpuAccessorHeader"/> from an gpu accessor.
         /// </summary>
@@ -347,6 +364,7 @@ namespace Ryujinx.Graphics.Gpu.Shader.Cache
                 ComputeLocalMemorySize = gpuAccessor.QueryComputeLocalMemorySize(),
                 ComputeSharedMemorySize = gpuAccessor.QueryComputeSharedMemorySize(),
                 PrimitiveTopology = gpuAccessor.QueryPrimitiveTopology(),
+                StateFlags = GetGpuStateFlags(gpuAccessor)
             };
         }
 
diff --git a/Ryujinx.Graphics.Gpu/Shader/Cache/Definition/GuestGpuAccessorHeader.cs b/Ryujinx.Graphics.Gpu/Shader/Cache/Definition/GuestGpuAccessorHeader.cs
index 396b0443..610b2da1 100644
--- a/Ryujinx.Graphics.Gpu/Shader/Cache/Definition/GuestGpuAccessorHeader.cs
+++ b/Ryujinx.Graphics.Gpu/Shader/Cache/Definition/GuestGpuAccessorHeader.cs
@@ -55,8 +55,8 @@ namespace Ryujinx.Graphics.Gpu.Shader.Cache.Definition
         public ushort Reserved2;
 
         /// <summary>
-        /// Unused/reserved.
+        /// GPU boolean state that can influence shader compilation.
         /// </summary>
-        public byte Reserved3;
+        public GuestGpuStateFlags StateFlags;
     }
 }
diff --git a/Ryujinx.Graphics.Gpu/Shader/Cache/Definition/GuestGpuStateFlags.cs b/Ryujinx.Graphics.Gpu/Shader/Cache/Definition/GuestGpuStateFlags.cs
new file mode 100644
index 00000000..4b1fbb06
--- /dev/null
+++ b/Ryujinx.Graphics.Gpu/Shader/Cache/Definition/GuestGpuStateFlags.cs
@@ -0,0 +1,10 @@
+using System;
+
+namespace Ryujinx.Graphics.Gpu.Shader.Cache.Definition
+{
+    [Flags]
+    enum GuestGpuStateFlags : byte
+    {
+        EarlyZForce = 1 << 0
+    }
+}
-- 
cgit v1.2.3