1 files changed, 0 insertions, 174 deletions
diff --git a/Ryujinx.Graphics.Nvdec/Image/SurfaceCache.cs b/Ryujinx.Graphics.Nvdec/Image/SurfaceCache.cs
deleted file mode 100644
index dc119673..00000000
--- a/Ryujinx.Graphics.Nvdec/Image/SurfaceCache.cs
+++ /dev/null
@@ -1,174 +0,0 @@
-using Ryujinx.Graphics.Gpu.Memory;
-using Ryujinx.Graphics.Video;
-using System;
-using System.Diagnostics;
-
-namespace Ryujinx.Graphics.Nvdec.Image
-{
-    class SurfaceCache
-    {
-        // Must be equal to at least the maximum number of surfaces
-        // that can be in use simultaneously (which is 17, since H264
-        // can have up to 16 reference frames, and we need another one
-        // for the current frame).
-        // Realistically, most codecs won't ever use more than 4 simultaneously.
-        private const int MaxItems = 17;
-
-        private struct CacheItem
-        {
-            public int ReferenceCount;
-            public uint LumaOffset;
-            public uint ChromaOffset;
-            public int Width;
-            public int Height;
-            public IDecoder Owner;
-            public ISurface Surface;
-        }
-
-        private readonly CacheItem[] _pool = new CacheItem[MaxItems];
-
-        private readonly MemoryManager _gmm;
-
-        public SurfaceCache(MemoryManager gmm)
-        {
-            _gmm = gmm;
-        }
-
-        public ISurface Get(IDecoder decoder, uint lumaOffset, uint chromaOffset, int width, int height)
-        {
-            lock (_pool)
-            {
-                ISurface surface = null;
-
-                // Try to find a compatible surface with same parameters, and same offsets.
-                for (int i = 0; i < MaxItems; i++)
-                {
-                    ref CacheItem item = ref _pool[i];
-
-                    if (item.LumaOffset == lumaOffset &&
-                        item.ChromaOffset == chromaOffset &&
-                        item.Owner == decoder &&
-                        item.Width == width &&
-                        item.Height == height)
-                    {
-                        item.ReferenceCount++;
-                        surface = item.Surface;
-                        MoveToFront(i);
-                        break;
-                    }
-                }
-
-                // If we failed to find a perfect match, now ignore the offsets.
-                // Search backwards to replace the oldest compatible surface,
-                // this avoids thrashing frequently used surfaces.
-                // Now we need to ensure that the surface is not in use, as we'll change the data.
-                if (surface == null)
-                {
-                    for (int i = MaxItems - 1; i >= 0; i--)
-                    {
-                        ref CacheItem item = ref _pool[i];
-
-                        if (item.ReferenceCount == 0 && item.Owner == decoder && item.Width == width && item.Height == height)
-                        {
-                            item.ReferenceCount = 1;
-                            item.LumaOffset = lumaOffset;
-                            item.ChromaOffset = chromaOffset;
-                            surface = item.Surface;
-
-                            if ((lumaOffset | chromaOffset) != 0)
-                            {
-                                SurfaceReader.Read(_gmm, surface, lumaOffset, chromaOffset);
-                            }
-
-                            MoveToFront(i);
-                            break;
-                        }
-                    }
-                }
-
-                // If everything else failed, we try to create a new surface,
-                // and insert it on the pool. We replace the oldest item on the
-                // pool to avoid thrashing frequently used surfaces.
-                // If even the oldest item is in use, that means that the entire pool
-                // is in use, in that case we throw as there's no place to insert
-                // the new surface.
-                if (surface == null)
-                {
-                    if (_pool[MaxItems - 1].ReferenceCount == 0)
-                    {
-                        surface = decoder.CreateSurface(width, height);
-
-                        if ((lumaOffset | chromaOffset) != 0)
-                        {
-                            SurfaceReader.Read(_gmm, surface, lumaOffset, chromaOffset);
-                        }
-
-                        MoveToFront(MaxItems - 1);
-                        ref CacheItem item = ref _pool[0];
-                        item.Surface?.Dispose();
-                        item.ReferenceCount = 1;
-                        item.LumaOffset = lumaOffset;
-                        item.ChromaOffset = chromaOffset;
-                        item.Width = width;
-                        item.Height = height;
-                        item.Owner = decoder;
-                        item.Surface = surface;
-                    }
-                    else
-                    {
-                        throw new InvalidOperationException("No free slot on the surface pool.");
-                    }
-                }
-
-                return surface;
-            }
-        }
-
-        public void Put(ISurface surface)
-        {
-            lock (_pool)
-            {
-                for (int i = 0; i < MaxItems; i++)
-                {
-                    ref CacheItem item = ref _pool[i];
-
-                    if (item.Surface == surface)
-                    {
-                        item.ReferenceCount--;
-                        Debug.Assert(item.ReferenceCount >= 0);
-                        break;
-                    }
-                }
-            }
-        }
-
-        private void MoveToFront(int index)
-        {
-            // If index is 0 we don't need to do anything,
-            // as it's already on the front.
-            if (index != 0)
-            {
-                CacheItem temp = _pool[index];
-                Array.Copy(_pool, 0, _pool, 1, index);
-                _pool[0] = temp;
-            }
-        }
-
-        public void Trim()
-        {
-            lock (_pool)
-            {
-                for (int i = 0; i < MaxItems; i++)
-                {
-                    ref CacheItem item = ref _pool[i];
-
-                    if (item.ReferenceCount == 0)
-                    {
-                        item.Surface?.Dispose();
-                        item = default;
-                    }
-                }
-            }
-        }
-    }
-}