Texture/Vertex/Index data cache (#132)

* Initial implementation of the texture cache

* Cache vertex and index data aswell, some cleanup

* Improve handling of the cache by storing cached ranges on a list for each page

* Delete old data from the caches automatically, ensure that the cache is cleaned when the mapping/size changes, and some general cleanup

1 files changed, 38 insertions, 0 deletions

diff --git a/Ryujinx.Core/Gpu/TextureHelper.cs b/Ryujinx.Core/Gpu/TextureHelper.cs
index f0ebc1f0..1863bb77 100644
--- a/Ryujinx.Core/Gpu/TextureHelper.cs
+++ b/Ryujinx.Core/Gpu/TextureHelper.cs
@@ -1,4 +1,5 @@
 using ChocolArm64.Memory;
+using Ryujinx.Graphics.Gal;
 using System;
 
 namespace Ryujinx.Core.Gpu
@@ -21,6 +22,43 @@ namespace Ryujinx.Core.Gpu
             throw new NotImplementedException(Texture.Swizzle.ToString());
         }
 
+        public static int GetTextureSize(GalTexture Texture)
+        {
+            switch (Texture.Format)
+            {
+                case GalTextureFormat.R32G32B32A32: return Texture.Width * Texture.Height * 16;
+                case GalTextureFormat.R16G16B16A16: return Texture.Width * Texture.Height * 8;
+                case GalTextureFormat.A8B8G8R8:     return Texture.Width * Texture.Height * 4;
+                case GalTextureFormat.R32:          return Texture.Width * Texture.Height * 4;
+                case GalTextureFormat.A1B5G5R5:     return Texture.Width * Texture.Height * 2;
+                case GalTextureFormat.B5G6R5:       return Texture.Width * Texture.Height * 2;
+                case GalTextureFormat.G8R8:         return Texture.Width * Texture.Height * 2;
+                case GalTextureFormat.R8:           return Texture.Width * Texture.Height;
+
+                case GalTextureFormat.BC1:
+                case GalTextureFormat.BC4:
+                {
+                    int W = (Texture.Width  + 3) / 4;
+                    int H = (Texture.Height + 3) / 4;
+
+                    return W * H * 8;
+                }
+
+                case GalTextureFormat.BC2:
+                case GalTextureFormat.BC3:
+                case GalTextureFormat.BC5:
+                case GalTextureFormat.Astc2D4x4:
+                {
+                    int W = (Texture.Width  + 3) / 4;
+                    int H = (Texture.Height + 3) / 4;
+
+                    return W * H * 16;
+                }
+            }
+
+            throw new NotImplementedException(Texture.Format.ToString());
+        }
+
         public static (AMemory Memory, long Position) GetMemoryAndPosition(
             IAMemory Memory,
             long     Position)