From 53369e79bdc34440a48e932e7024bab92f30f957 Mon Sep 17 00:00:00 2001
From: mageven <62494521+mageven@users.noreply.github.com>
Date: Mon, 4 May 2020 07:34:49 +0530
Subject: Implement user-defined clipping on GL state pipeline (#1118)

---
 Ryujinx.Graphics.Gpu/Engine/Methods.cs | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

(limited to 'Ryujinx.Graphics.Gpu/Engine')

diff --git a/Ryujinx.Graphics.Gpu/Engine/Methods.cs b/Ryujinx.Graphics.Gpu/Engine/Methods.cs
index a517ae05..59678be5 100644
--- a/Ryujinx.Graphics.Gpu/Engine/Methods.cs
+++ b/Ryujinx.Graphics.Gpu/Engine/Methods.cs
@@ -125,6 +125,11 @@ namespace Ryujinx.Graphics.Gpu.Engine
                 UpdateShaderState(state);
             }
 
+            if (state.QueryModified(MethodOffset.ClipDistanceEnable))
+            {
+                UpdateUserClipState(state);
+            }
+
             if (state.QueryModified(MethodOffset.RasterizeEnable))
             {
                 UpdateRasterizerState(state);
@@ -902,6 +907,20 @@ namespace Ryujinx.Graphics.Gpu.Engine
             _context.Renderer.Pipeline.SetProgram(gs.HostProgram);
         }
 
+        /// <summary>
+        /// Updates user-defined clipping based on the guest GPU state.
+        /// </summary>
+        /// <param name="state">Current GPU state</param>
+        private void UpdateUserClipState(GpuState state)
+        {
+            int clipMask = state.Get<int>(MethodOffset.ClipDistanceEnable);
+
+            for (int i = 0; i < Constants.TotalClipDistances; ++i)
+            {
+                _context.Renderer.Pipeline.SetUserClipDistance(i, (clipMask & (1 << i)) != 0);
+            }
+        }
+
         /// <summary>
         /// Gets texture target from a sampler type.
         /// </summary>
-- 
cgit v1.2.3