From ad3bc2531ba920d479691e4bd9d9e03373bb28b2 Mon Sep 17 00:00:00 2001
From: gdkchan <gab.dark.100@gmail.com>
Date: Mon, 9 Dec 2019 18:57:49 -0300
Subject: [PATCH] Ensure a valid shared memory size is used

---
 Ryujinx.Graphics.Gpu/Engine/Compute.cs | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/Ryujinx.Graphics.Gpu/Engine/Compute.cs b/Ryujinx.Graphics.Gpu/Engine/Compute.cs
index 61e6b326..bbf1eeaa 100644
--- a/Ryujinx.Graphics.Gpu/Engine/Compute.cs
+++ b/Ryujinx.Graphics.Gpu/Engine/Compute.cs
@@ -20,9 +20,12 @@ namespace Ryujinx.Graphics.Gpu.Engine
 
             ulong shaderGpuVa = shaderBaseAddress.Pack() + (uint)dispatchParams.ShaderOffset;
 
+            // Note: A size of 0 is also invalid, the size must be at least 1.
+            int sharedMemorySize = Math.Clamp(dispatchParams.SharedMemorySize & 0xffff, 1, _context.Capabilities.MaximumComputeSharedMemorySize);
+
             ComputeShader cs = _shaderCache.GetComputeShader(
                 shaderGpuVa,
-                dispatchParams.SharedMemorySize & 0xffff,
+                sharedMemorySize,
                 dispatchParams.UnpackBlockSizeX(),
                 dispatchParams.UnpackBlockSizeY(),
                 dispatchParams.UnpackBlockSizeZ());