Clamp number of mipmap levels to avoid API errors due to invalid textures (#2808)

1 files changed, 20 insertions, 0 deletions

diff --git a/Ryujinx.Graphics.GAL/TextureCreateInfo.cs b/Ryujinx.Graphics.GAL/TextureCreateInfo.cs
index eedf58a0..3ccfb700 100644
--- a/Ryujinx.Graphics.GAL/TextureCreateInfo.cs
+++ b/Ryujinx.Graphics.GAL/TextureCreateInfo.cs
@@ -1,5 +1,6 @@
 using Ryujinx.Common;
 using System;
+using System.Numerics;
 
 namespace Ryujinx.Graphics.GAL
 {
@@ -112,6 +113,25 @@ namespace Ryujinx.Graphics.GAL
             return 1;
         }
 
+        public readonly int GetLevelsClamped()
+        {
+            int maxSize = Width;
+
+            if (Target != Target.Texture1D &&
+                Target != Target.Texture1DArray)
+            {
+                maxSize = Math.Max(maxSize, Height);
+            }
+
+            if (Target == Target.Texture3D)
+            {
+                maxSize = Math.Max(maxSize, Depth);
+            }
+
+            int maxLevels = BitOperations.Log2((uint)maxSize) + 1;
+            return Math.Min(Levels, maxLevels);
+        }
+
         private static int GetLevelSize(int size, int level)
         {
             return Math.Max(1, size >> level);