Texture Cache: "Texture Groups" and "Texture Dependencies" (#2001)

* Initial implementation (3d tex mips broken)

This works rather well for most games, just need to fix 3d texture mips.

* Cleanup

* Address feedback

* Copy Dependencies and various other fixes

* Fix layer/level offset for copy from view<->view.

* Remove dirty flag from dependency

The dirty flag behaviour is not needed - DeferredCopy is all we need.

* Fix tracking mip slices.

* Propagate granularity (fix astral chain)

* Address Feedback pt 1

* Save slice sizes as part of SizeInfo

* Fix nits

* Fix disposing multiple dependencies causing a crash

This list is obviously modified when removing dependencies, so create a copy of it.

Ryujinx.Graphics.Gpu/Image/TextureInfo.cs

@@ -232,6 +232,31 @@ namespace Ryujinx.Graphics.Gpu.Image
             }
         }
 
+        /// <summary>
+        /// Gets the number of 2D slices of the texture.
+        /// Returns 6 for cubemap textures, layer faces for cubemap array textures, and DepthOrLayers for everything else.
+        /// </summary>
+        /// <returns>The number of texture slices</returns>
+        public int GetSlices()
+        {
+            if (Target == Target.Texture3D || Target == Target.Texture2DArray || Target == Target.Texture2DMultisampleArray)
+            {
+                return DepthOrLayers;
+            }
+            else if (Target == Target.CubemapArray)
+            {
+                return DepthOrLayers * 6;
+            }
+            else if (Target == Target.Cubemap)
+            {
+                return 6;
+            }
+            else
+            {
+                return 1;
+            }
+        }
+
         /// <summary>
         /// Calculates the size information from the texture information.
         /// </summary>