1 files changed, 45 insertions, 0 deletions
diff --git a/Ryujinx.Graphics/Texture/TextureHelper.cs b/Ryujinx.Graphics/Texture/TextureHelper.cs
new file mode 100644
index 00000000..8130ab41
--- /dev/null
+++ b/Ryujinx.Graphics/Texture/TextureHelper.cs
@@ -0,0 +1,45 @@
+using ChocolArm64.Memory;
+using Ryujinx.Graphics.Gal;
+using Ryujinx.Graphics.Memory;
+using System;
+
+namespace Ryujinx.Graphics.Texture
+{
+    static class TextureHelper
+    {
+        public static ISwizzle GetSwizzle(TextureInfo Texture, int BlockWidth, int Bpp)
+        {
+            int Width = (Texture.Width + (BlockWidth - 1)) / BlockWidth;
+
+            int AlignMask = Texture.TileWidth * (64 / Bpp) - 1;
+
+            Width = (Width + AlignMask) & ~AlignMask;
+
+            switch (Texture.Swizzle)
+            {
+                case TextureSwizzle._1dBuffer:
+                case TextureSwizzle.Pitch:
+                case TextureSwizzle.PitchColorKey:
+                     return new LinearSwizzle(Texture.Pitch, Bpp);
+
+                case TextureSwizzle.BlockLinear:
+                case TextureSwizzle.BlockLinearColorKey:
+                    return new BlockLinearSwizzle(Width, Bpp, Texture.BlockHeight);
+            }
+
+            throw new NotImplementedException(Texture.Swizzle.ToString());
+        }
+
+        public static (AMemory Memory, long Position) GetMemoryAndPosition(
+            IAMemory Memory,
+            long     Position)
+        {
+            if (Memory is NvGpuVmm Vmm)
+            {
+                return (Vmm.Memory, Vmm.GetPhysicalAddress(Position));
+            }
+
+            return ((AMemory)Memory, Position);
+        }
+    }
+}