Merge branch 'master' of https://github.com/Ryujinx/Ryujinx into ava_p2

ARMeilleure/IntermediateRepresentation/Operand.cs

@@ -14,10 +14,11 @@ namespace ARMeilleure.IntermediateRepresentation
             public byte Kind;
             public byte Type;
             public byte SymbolType;
+            public byte Padding; // Unused space.
             public ushort AssignmentsCount;
             public ushort AssignmentsCapacity;
-            public ushort UsesCount;
+            public uint UsesCount;
-            public ushort UsesCapacity;
+            public uint UsesCapacity;
             public Operation* Assignments;
             public Operation* Uses;
             public ulong Value;
@@ -84,11 +85,11 @@ namespace ARMeilleure.IntermediateRepresentation
             {
                 Debug.Assert(Kind != OperandKind.Memory);
 
-                return new ReadOnlySpan<Operation>(_data->Uses, _data->UsesCount);
+                return new ReadOnlySpan<Operation>(_data->Uses, (int)_data->UsesCount);
             }
         }
 
-        public int UsesCount => _data->UsesCount;
+        public int UsesCount => (int)_data->UsesCount;
         public int AssignmentsCount => _data->AssignmentsCount;
 
         public bool Relocatable => Symbol.Type != SymbolType.None;
@@ -265,6 +266,13 @@ namespace ARMeilleure.IntermediateRepresentation
             data = Allocators.References.Allocate<T>(initialCapacity);
         }
 
+        private static void New<T>(ref T* data, ref uint count, ref uint capacity, uint initialCapacity) where T : unmanaged
+        {
+            count = 0;
+            capacity = initialCapacity;
+            data = Allocators.References.Allocate<T>(initialCapacity);
+        }
+
         private static void Add<T>(T item, ref T* data, ref ushort count, ref ushort capacity) where T : unmanaged
         {
             if (count < capacity)
@@ -294,6 +302,40 @@ namespace ARMeilleure.IntermediateRepresentation
             }
         }
 
+        private static void Add<T>(T item, ref T* data, ref uint count, ref uint capacity) where T : unmanaged
+        {
+            if (count < capacity)
+            {
+                data[count++] = item;
+
+                return;
+            }
+
+            // Could not add item in the fast path, fallback onto the slow path.
+            ExpandAdd(item, ref data, ref count, ref capacity);
+
+            static void ExpandAdd(T item, ref T* data, ref uint count, ref uint capacity)
+            {
+                uint newCount = checked(count + 1);
+                uint newCapacity = (uint)Math.Min(capacity * 2, int.MaxValue);
+
+                if (newCapacity <= capacity)
+                {
+                    throw new OverflowException();
+                }
+
+                var oldSpan = new Span<T>(data, (int)count);
+
+                capacity = newCapacity;
+                data = Allocators.References.Allocate<T>(capacity);
+
+                oldSpan.CopyTo(new Span<T>(data, (int)count));
+
+                data[count] = item;
+                count = newCount;
+            }
+        }
+
         private static void Remove<T>(in T item, ref T* data, ref ushort count) where T : unmanaged
         {
             var span = new Span<T>(data, count);
@@ -314,6 +356,26 @@ namespace ARMeilleure.IntermediateRepresentation
             }
         }
 
+        private static void Remove<T>(in T item, ref T* data, ref uint count) where T : unmanaged
+        {
+            var span = new Span<T>(data, (int)count);
+
+            for (int i = 0; i < span.Length; i++)
+            {
+                if (EqualityComparer<T>.Default.Equals(span[i], item))
+                {
+                    if (i + 1 < count)
+                    {
+                        span.Slice(i + 1).CopyTo(span.Slice(i));
+                    }
+
+                    count--;
+
+                    return;
+                }
+            }
+        }
+
         public override int GetHashCode()
         {
             if (Kind == OperandKind.LocalVariable)

Ryujinx.Graphics.GAL/Target.cs

@@ -13,4 +13,12 @@ namespace Ryujinx.Graphics.GAL
         CubemapArray,
         TextureBuffer
     }
+
+    public static class TargetExtensions
+    {
+        public static bool IsMultisample(this Target target)
+        {
+            return target == Target.Texture2DMultisample || target == Target.Texture2DMultisampleArray;
+        }
+    }
 }

Ryujinx.Graphics.Gpu/Engine/Threed/DrawManager.cs

@@ -18,6 +18,7 @@ namespace Ryujinx.Graphics.Gpu.Engine.Threed
 
         private bool _instancedDrawPending;
         private bool _instancedIndexed;
+        private bool _instancedIndexedInline;
 
         private int _instancedFirstIndex;
         private int _instancedFirstVertex;
@@ -135,6 +136,7 @@ namespace Ryujinx.Graphics.Gpu.Engine.Threed
                 _instancedDrawPending = true;
 
                 _instancedIndexed = _drawState.DrawIndexed;
+                _instancedIndexedInline = _drawState.IbStreamer.HasInlineIndexData;
 
                 _instancedFirstIndex = firstIndex;
                 _instancedFirstVertex = (int)_state.State.FirstVertex;
@@ -451,7 +453,21 @@ namespace Ryujinx.Graphics.Gpu.Engine.Threed
             {
                 _instancedDrawPending = false;
 
-                if (_instancedIndexed)
+                if (_instancedIndexedInline)
+                {
+                    int inlineIndexCount = _drawState.IbStreamer.GetAndResetInlineIndexCount();
+                    BufferRange br = new BufferRange(_drawState.IbStreamer.GetInlineIndexBuffer(), 0, inlineIndexCount * 4);
+
+                    _channel.BufferManager.SetIndexBuffer(br, IndexType.UInt);
+
+                    _context.Renderer.Pipeline.DrawIndexed(
+                        inlineIndexCount,
+                        _instanceIndex + 1,
+                        _instancedFirstIndex,
+                        _instancedFirstVertex,
+                        _instancedFirstInstance);
+                }
+                else if (_instancedIndexed)
                 {
                     _context.Renderer.Pipeline.DrawIndexed(
                         _instancedIndexCount,

Ryujinx.Graphics.Gpu/Image/Texture.cs

@@ -1136,32 +1136,22 @@ namespace Ryujinx.Graphics.Gpu.Image
         /// <param name="range">Texture view physical memory ranges</param>
         /// <param name="layerSize">Layer size on the given texture</param>
         /// <param name="caps">Host GPU capabilities</param>
-        /// <param name="allowMs">Indicates that multisample textures are allowed to match non-multisample requested textures</param>
         /// <param name="firstLayer">Texture view initial layer on this texture</param>
         /// <param name="firstLevel">Texture view first mipmap level on this texture</param>
         /// <returns>The level of compatiblilty a view with the given parameters created from this texture has</returns>
-        public TextureViewCompatibility IsViewCompatible(TextureInfo info, MultiRange range, int layerSize, Capabilities caps, bool allowMs, out int firstLayer, out int firstLevel)
+        public TextureViewCompatibility IsViewCompatible(TextureInfo info, MultiRange range, int layerSize, Capabilities caps, out int firstLayer, out int firstLevel)
         {
             TextureViewCompatibility result = TextureViewCompatibility.Full;
 
             result = TextureCompatibility.PropagateViewCompatibility(result, TextureCompatibility.ViewFormatCompatible(Info, info, caps));
             if (result != TextureViewCompatibility.Incompatible)
             {
-                bool msTargetCompatible = false;
+                result = TextureCompatibility.PropagateViewCompatibility(result, TextureCompatibility.ViewTargetCompatible(Info, info));
 
-                if (allowMs)
+                bool bothMs = Info.Target.IsMultisample() && info.Target.IsMultisample();
+                if (bothMs && (Info.SamplesInX != info.SamplesInX || Info.SamplesInY != info.SamplesInY))
                 {
-                    msTargetCompatible = Info.Target == Target.Texture2DMultisample && info.Target == Target.Texture2D;
+                    result = TextureViewCompatibility.Incompatible;
-                }
-
-                if (!msTargetCompatible)
-                {
-                    result = TextureCompatibility.PropagateViewCompatibility(result, TextureCompatibility.ViewTargetCompatible(Info, info));
-
-                    if (Info.SamplesInX != info.SamplesInX || Info.SamplesInY != info.SamplesInY)
-                    {
-                        result = TextureViewCompatibility.Incompatible;
-                    }
                 }
 
                 if (result == TextureViewCompatibility.Full && Info.FormatInfo.Format != info.FormatInfo.Format && !_context.Capabilities.SupportsMismatchingViewFormat)

Ryujinx.Graphics.Gpu/Image/TextureCache.cs

@@ -547,7 +547,6 @@ namespace Ryujinx.Graphics.Gpu.Image
                     range.Value,
                     sizeInfo.LayerSize,
                     _context.Capabilities,
-                    flags.HasFlag(TextureSearchFlags.ForCopy),
                     out int firstLayer,
                     out int firstLevel);
 
@@ -662,7 +661,6 @@ namespace Ryujinx.Graphics.Gpu.Image
                         overlap.Range,
                         overlap.LayerSize,
                         _context.Capabilities,
-                        false,
                         out int firstLayer,
                         out int firstLevel);
 

Ryujinx.Graphics.Gpu/Image/TextureCompatibility.cs

@@ -2,7 +2,6 @@ using Ryujinx.Common;
 using Ryujinx.Graphics.GAL;
 using Ryujinx.Graphics.Texture;
 using System;
-using System.Numerics;
 
 namespace Ryujinx.Graphics.Gpu.Image
 {
@@ -657,6 +656,11 @@ namespace Ryujinx.Graphics.Gpu.Image
 
                 case Target.Texture2DMultisample:
                 case Target.Texture2DMultisampleArray:
+                    if (rhs.Target == Target.Texture2D || rhs.Target == Target.Texture2DArray)
+                    {
+                        return TextureViewCompatibility.CopyOnly;
+                    }
+
                     result = rhs.Target == Target.Texture2DMultisample ||
                              rhs.Target == Target.Texture2DMultisampleArray;
                     break;

Ryujinx.Graphics.OpenGL/Image/IntermmediatePool.cs

@@ -0,0 +1,98 @@
+using Ryujinx.Graphics.GAL;
+using System;
+using System.Collections.Generic;
+
+namespace Ryujinx.Graphics.OpenGL.Image
+{
+    class IntermmediatePool : IDisposable
+    {
+        private readonly Renderer _renderer;
+        private readonly List<TextureView> _entries;
+
+        public IntermmediatePool(Renderer renderer)
+        {
+            _renderer = renderer;
+            _entries = new List<TextureView>();
+        }
+
+        public TextureView GetOrCreateWithAtLeast(
+            Target target,
+            int blockWidth,
+            int blockHeight,
+            int bytesPerPixel,
+            Format format,
+            int width,
+            int height,
+            int depth,
+            int levels)
+        {
+            TextureView entry;
+
+            for (int i = 0; i < _entries.Count; i++)
+            {
+                entry = _entries[i];
+
+                if (entry.Target == target && entry.Format == format)
+                {
+                    if (entry.Width < width || entry.Height < height || entry.Info.Depth < depth || entry.Info.Levels < levels)
+                    {
+                        width = Math.Max(width, entry.Width);
+                        height = Math.Max(height, entry.Height);
+                        depth = Math.Max(depth, entry.Info.Depth);
+                        levels = Math.Max(levels, entry.Info.Levels);
+
+                        entry.Dispose();
+                        entry = CreateNew(target, blockWidth, blockHeight, bytesPerPixel, format, width, height, depth, levels);
+                        _entries[i] = entry;
+                    }
+
+                    return entry;
+                }
+            }
+
+            entry = CreateNew(target, blockWidth, blockHeight, bytesPerPixel, format, width, height, depth, levels);
+            _entries.Add(entry);
+
+            return entry;
+        }
+
+        private TextureView CreateNew(
+            Target target,
+            int blockWidth,
+            int blockHeight,
+            int bytesPerPixel,
+            Format format,
+            int width,
+            int height,
+            int depth,
+            int levels)
+        {
+            return (TextureView)_renderer.CreateTexture(new TextureCreateInfo(
+                width,
+                height,
+                depth,
+                levels,
+                1,
+                blockWidth,
+                blockHeight,
+                bytesPerPixel,
+                format,
+                DepthStencilMode.Depth,
+                target,
+                SwizzleComponent.Red,
+                SwizzleComponent.Green,
+                SwizzleComponent.Blue,
+                SwizzleComponent.Alpha), 1f);
+        }
+
+        public void Dispose()
+        {
+            foreach (TextureView entry in _entries)
+            {
+                entry.Dispose();
+            }
+
+            _entries.Clear();
+        }
+    }
+}

Ryujinx.Graphics.OpenGL/Image/TextureCopy.cs

@@ -9,6 +9,8 @@ namespace Ryujinx.Graphics.OpenGL.Image
     {
         private readonly Renderer _renderer;
 
+        public IntermmediatePool IntermmediatePool { get; }
+
         private int _srcFramebuffer;
         private int _dstFramebuffer;
 
@@ -18,6 +20,7 @@ namespace Ryujinx.Graphics.OpenGL.Image
         public TextureCopy(Renderer renderer)
         {
             _renderer = renderer;
+            IntermmediatePool = new IntermmediatePool(renderer);
         }
 
         public void Copy(
@@ -25,7 +28,30 @@ namespace Ryujinx.Graphics.OpenGL.Image
             TextureView dst,
             Extents2D   srcRegion,
             Extents2D   dstRegion,
-            bool        linearFilter)
+            bool        linearFilter,
+            int         srcLayer = 0,
+            int         dstLayer = 0,
+            int         srcLevel = 0,
+            int         dstLevel = 0)
+        {
+            int levels = Math.Min(src.Info.Levels - srcLevel, dst.Info.Levels - dstLevel);
+            int layers = Math.Min(src.Info.GetLayers() - srcLayer, dst.Info.GetLayers() - dstLayer);
+
+            Copy(src, dst, srcRegion, dstRegion, linearFilter, srcLayer, dstLayer, srcLevel, dstLevel, layers, levels);
+        }
+
+        public void Copy(
+            TextureView src,
+            TextureView dst,
+            Extents2D   srcRegion,
+            Extents2D   dstRegion,
+            bool        linearFilter,
+            int         srcLayer,
+            int         dstLayer,
+            int         srcLevel,
+            int         dstLevel,
+            int         layers,
+            int         levels)
         {
             TextureView srcConverted = src.Format.IsBgr() != dst.Format.IsBgr() ? BgraSwap(src) : src;
 
@@ -34,22 +60,29 @@ namespace Ryujinx.Graphics.OpenGL.Image
             GL.BindFramebuffer(FramebufferTarget.ReadFramebuffer, GetSrcFramebufferLazy());
             GL.BindFramebuffer(FramebufferTarget.DrawFramebuffer, GetDstFramebufferLazy());
 
-            int levels = Math.Min(src.Info.Levels, dst.Info.Levels);
+            if (srcLevel != 0)
-            int layers = Math.Min(src.Info.GetLayers(), dst.Info.GetLayers());
+            {
+                srcRegion = srcRegion.Reduce(srcLevel);
+            }
+
+            if (dstLevel != 0)
+            {
+                dstRegion = dstRegion.Reduce(dstLevel);
+            }
 
             for (int level = 0; level < levels; level++)
             {
                 for (int layer = 0; layer < layers; layer++)
                 {
-                    if (layers > 1)
+                    if ((srcLayer | dstLayer) != 0 || layers > 1)
                     {
-                        Attach(FramebufferTarget.ReadFramebuffer, src.Format, srcConverted.Handle, level, layer);
+                        Attach(FramebufferTarget.ReadFramebuffer, src.Format, srcConverted.Handle, srcLevel + level, srcLayer + layer);
-                        Attach(FramebufferTarget.DrawFramebuffer, dst.Format, dst.Handle, level, layer);
+                        Attach(FramebufferTarget.DrawFramebuffer, dst.Format, dst.Handle, dstLevel + level, dstLayer + layer);
                     }
                     else
                     {
-                        Attach(FramebufferTarget.ReadFramebuffer, src.Format, srcConverted.Handle, level);
+                        Attach(FramebufferTarget.ReadFramebuffer, src.Format, srcConverted.Handle, srcLevel + level);
-                        Attach(FramebufferTarget.DrawFramebuffer, dst.Format, dst.Handle, level);
+                        Attach(FramebufferTarget.DrawFramebuffer, dst.Format, dst.Handle, dstLevel + level);
                     }
 
                     ClearBufferMask mask = GetMask(src.Format);
@@ -484,6 +517,8 @@ namespace Ryujinx.Graphics.OpenGL.Image
 
                 _copyPboHandle = 0;
             }
+
+            IntermmediatePool.Dispose();
         }
     }
 }

Ryujinx.Graphics.OpenGL/Image/TextureView.cs

@@ -115,14 +115,77 @@ namespace Ryujinx.Graphics.OpenGL.Image
         {
             TextureView destinationView = (TextureView)destination;
 
-            _renderer.TextureCopy.CopyUnscaled(this, destinationView, 0, firstLayer, 0, firstLevel);
+            if (destinationView.Target.IsMultisample() || Target.IsMultisample())
+            {
+                Extents2D srcRegion = new Extents2D(0, 0, Width, Height);
+                Extents2D dstRegion = new Extents2D(0, 0, destinationView.Width, destinationView.Height);
+
+                TextureView intermmediate = _renderer.TextureCopy.IntermmediatePool.GetOrCreateWithAtLeast(
+                    GetIntermmediateTarget(Target),
+                    Info.BlockWidth,
+                    Info.BlockHeight,
+                    Info.BytesPerPixel,
+                    Format,
+                    Width,
+                    Height,
+                    Info.Depth,
+                    Info.Levels);
+
+                GL.Disable(EnableCap.FramebufferSrgb);
+
+                _renderer.TextureCopy.Copy(this, intermmediate, srcRegion, srcRegion, true);
+                _renderer.TextureCopy.Copy(intermmediate, destinationView, srcRegion, dstRegion, true, 0, firstLayer, 0, firstLevel);
+
+                GL.Enable(EnableCap.FramebufferSrgb);
+            }
+            else
+            {
+                _renderer.TextureCopy.CopyUnscaled(this, destinationView, 0, firstLayer, 0, firstLevel);
+            }
         }
 
         public void CopyTo(ITexture destination, int srcLayer, int dstLayer, int srcLevel, int dstLevel)
         {
-             TextureView destinationView = (TextureView)destination;
+            TextureView destinationView = (TextureView)destination;
 
-            _renderer.TextureCopy.CopyUnscaled(this, destinationView, srcLayer, dstLayer, srcLevel, dstLevel, 1, 1);
+            if (destinationView.Target.IsMultisample() || Target.IsMultisample())
+            {
+                Extents2D srcRegion = new Extents2D(0, 0, Width, Height);
+                Extents2D dstRegion = new Extents2D(0, 0, destinationView.Width, destinationView.Height);
+
+                TextureView intermmediate = _renderer.TextureCopy.IntermmediatePool.GetOrCreateWithAtLeast(
+                    GetIntermmediateTarget(Target),
+                    Info.BlockWidth,
+                    Info.BlockHeight,
+                    Info.BytesPerPixel,
+                    Format,
+                    Math.Max(1, Width >> srcLevel),
+                    Math.Max(1, Height >> srcLevel),
+                    1,
+                    1);
+
+                GL.Disable(EnableCap.FramebufferSrgb);
+
+                _renderer.TextureCopy.Copy(this, intermmediate, srcRegion, srcRegion, true, srcLayer, 0, srcLevel, 0, 1, 1);
+                _renderer.TextureCopy.Copy(intermmediate, destinationView, srcRegion, dstRegion, true, 0, dstLayer, 0, dstLevel, 1, 1);
+
+                GL.Enable(EnableCap.FramebufferSrgb);
+            }
+            else
+            {
+                _renderer.TextureCopy.CopyUnscaled(this, destinationView, srcLayer, dstLayer, srcLevel, dstLevel, 1, 1);
+            }
+        }
+
+        private static Target GetIntermmediateTarget(Target srcTarget)
+        {
+            return srcTarget switch
+            {
+                Target.Texture2D => Target.Texture2DMultisample,
+                Target.Texture2DArray => Target.Texture2DMultisampleArray,
+                Target.Texture2DMultisampleArray => Target.Texture2DArray,
+                _ => Target.Texture2D
+            };
         }
 
         public void CopyTo(ITexture destination, Extents2D srcRegion, Extents2D dstRegion, bool linearFilter)

Ryujinx.HLE/HOS/Services/Nv/NvDrvServices/NvHostChannel/NvHostChannelDeviceFile.cs

@@ -429,8 +429,6 @@ namespace Ryujinx.HLE.HOS.Services.Nv.NvDrvServices.NvHostChannel
                 Channel.PushHostCommandBuffer(CreateWaitCommandBuffer(header.Fence));
             }
 
-            Channel.PushEntries(entries);
-
             header.Fence.Id = _channelSyncpoint.Id;
 
             if (header.Flags.HasFlag(SubmitGpfifoFlags.FenceIncrement) || header.Flags.HasFlag(SubmitGpfifoFlags.IncrementWithValue))
@@ -449,6 +447,8 @@ namespace Ryujinx.HLE.HOS.Services.Nv.NvDrvServices.NvHostChannel
                 header.Fence.Value = _device.System.HostSyncpoint.ReadSyncpointMaxValue(header.Fence.Id);
             }
 
+            Channel.PushEntries(entries);
+
             if (header.Flags.HasFlag(SubmitGpfifoFlags.FenceIncrement))
             {
                 Channel.PushHostCommandBuffer(CreateIncrementCommandBuffer(ref header.Fence, header.Flags));

Ryujinx.Memory/MemoryBlock.cs

@@ -19,6 +19,8 @@ namespace Ryujinx.Memory
         private ConcurrentDictionary<MemoryBlock, byte> _viewStorages;
         private int _viewCount;
 
+        internal bool ForceWindows4KBView => _forceWindows4KBView;
+
         /// <summary>
         /// Pointer to the memory block data.
         /// </summary>
@@ -145,7 +147,7 @@ namespace Ryujinx.Memory
                 srcBlock.IncrementViewCount();
             }
 
-            MemoryManagement.MapView(srcBlock._sharedMemory, srcOffset, GetPointerInternal(dstOffset, size), size, _forceWindows4KBView);
+            MemoryManagement.MapView(srcBlock._sharedMemory, srcOffset, GetPointerInternal(dstOffset, size), size, this);
         }
 
         /// <summary>
@@ -156,7 +158,7 @@ namespace Ryujinx.Memory
         /// <param name="size">Size of the range to be unmapped</param>
         public void UnmapView(MemoryBlock srcBlock, ulong offset, ulong size)
         {
-            MemoryManagement.UnmapView(srcBlock._sharedMemory, GetPointerInternal(offset, size), size, _forceWindows4KBView);
+            MemoryManagement.UnmapView(srcBlock._sharedMemory, GetPointerInternal(offset, size), size, this);
         }
 
         /// <summary>

Ryujinx.Memory/MemoryManagement.cs

@@ -68,17 +68,17 @@ namespace Ryujinx.Memory
             }
         }
 
-        public static void MapView(IntPtr sharedMemory, ulong srcOffset, IntPtr address, ulong size, bool force4KBMap)
+        public static void MapView(IntPtr sharedMemory, ulong srcOffset, IntPtr address, ulong size, MemoryBlock owner)
         {
             if (OperatingSystem.IsWindows())
             {
-                if (force4KBMap)
+                if (owner.ForceWindows4KBView)
                 {
                     MemoryManagementWindows.MapView4KB(sharedMemory, srcOffset, address, (IntPtr)size);
                 }
                 else
                 {
-                    MemoryManagementWindows.MapView(sharedMemory, srcOffset, address, (IntPtr)size);
+                    MemoryManagementWindows.MapView(sharedMemory, srcOffset, address, (IntPtr)size, owner);
                 }
             }
             else if (OperatingSystem.IsLinux() || OperatingSystem.IsMacOS())
@@ -91,17 +91,17 @@ namespace Ryujinx.Memory
             }
         }
 
-        public static void UnmapView(IntPtr sharedMemory, IntPtr address, ulong size, bool force4KBMap)
+        public static void UnmapView(IntPtr sharedMemory, IntPtr address, ulong size, MemoryBlock owner)
         {
             if (OperatingSystem.IsWindows())
             {
-                if (force4KBMap)
+                if (owner.ForceWindows4KBView)
                 {
                     MemoryManagementWindows.UnmapView4KB(address, (IntPtr)size);
                 }
                 else
                 {
-                    MemoryManagementWindows.UnmapView(sharedMemory, address, (IntPtr)size);
+                    MemoryManagementWindows.UnmapView(sharedMemory, address, (IntPtr)size, owner);
                 }
             }
             else if (OperatingSystem.IsLinux() || OperatingSystem.IsMacOS())

Ryujinx.Memory/MemoryManagementWindows.cs

@@ -68,9 +68,9 @@ namespace Ryujinx.Memory
             return WindowsApi.VirtualFree(location, size, AllocationType.Decommit);
         }
 
-        public static void MapView(IntPtr sharedMemory, ulong srcOffset, IntPtr location, IntPtr size)
+        public static void MapView(IntPtr sharedMemory, ulong srcOffset, IntPtr location, IntPtr size, MemoryBlock owner)
         {
-            _placeholders.MapView(sharedMemory, srcOffset, location, size);
+            _placeholders.MapView(sharedMemory, srcOffset, location, size, owner);
         }
 
         public static void MapView4KB(IntPtr sharedMemory, ulong srcOffset, IntPtr location, IntPtr size)
@@ -106,9 +106,9 @@ namespace Ryujinx.Memory
             }
         }
 
-        public static void UnmapView(IntPtr sharedMemory, IntPtr location, IntPtr size)
+        public static void UnmapView(IntPtr sharedMemory, IntPtr location, IntPtr size, MemoryBlock owner)
         {
-            _placeholders.UnmapView(sharedMemory, location, size);
+            _placeholders.UnmapView(sharedMemory, location, size, owner);
         }
 
         public static void UnmapView4KB(IntPtr location, IntPtr size)
@@ -154,7 +154,7 @@ namespace Ryujinx.Memory
             }
             else
             {
-                _placeholders.UnmapView(IntPtr.Zero, address, size);
+                _placeholders.UnreserveRange((ulong)address, (ulong)size);
             }
 
             return WindowsApi.VirtualFree(address, IntPtr.Zero, AllocationType.Release);

Ryujinx.Memory/WindowsShared/PlaceholderManager.cs

@@ -44,6 +44,50 @@ namespace Ryujinx.Memory.WindowsShared
             }
         }
 
+        /// <summary>
+        /// Unreserves a range of memory that has been previously reserved with <see cref="ReserveRange"/>.
+        /// </summary>
+        /// <param name="address">Start address of the region to unreserve</param>
+        /// <param name="size">Size in bytes of the region to unreserve</param>
+        /// <exception cref="WindowsApiException">Thrown when the Windows API returns an error unreserving the memory</exception>
+        public void UnreserveRange(ulong address, ulong size)
+        {
+            ulong endAddress = address + size;
+
+            var overlaps = Array.Empty<IntervalTreeNode<ulong, ulong>>();
+            int count;
+
+            lock (_mappings)
+            {
+                count = _mappings.Get(address, endAddress, ref overlaps);
+
+                for (int index = 0; index < count; index++)
+                {
+                    var overlap = overlaps[index];
+
+                    if (IsMapped(overlap.Value))
+                    {
+                        if (!WindowsApi.UnmapViewOfFile2(WindowsApi.CurrentProcessHandle, (IntPtr)overlap.Start, 2))
+                        {
+                            throw new WindowsApiException("UnmapViewOfFile2");
+                        }
+                    }
+
+                    _mappings.Remove(overlap);
+                }
+            }
+
+            if (count > 1)
+            {
+                CheckFreeResult(WindowsApi.VirtualFree(
+                    (IntPtr)address,
+                    (IntPtr)size,
+                    AllocationType.Release | AllocationType.CoalescePlaceholders));
+            }
+
+            RemoveProtection(address, size);
+        }
+
         /// <summary>
         /// Maps a shared memory view on a previously reserved memory region.
         /// </summary>
@@ -51,13 +95,14 @@ namespace Ryujinx.Memory.WindowsShared
         /// <param name="srcOffset">Offset in the shared memory to map</param>
         /// <param name="location">Address to map the view into</param>
         /// <param name="size">Size of the view in bytes</param>
-        public void MapView(IntPtr sharedMemory, ulong srcOffset, IntPtr location, IntPtr size)
+        /// <param name="owner">Memory block that owns the mapping</param>
+        public void MapView(IntPtr sharedMemory, ulong srcOffset, IntPtr location, IntPtr size, MemoryBlock owner)
         {
             _partialUnmapLock.AcquireReaderLock(Timeout.Infinite);
 
             try
             {
-                UnmapViewInternal(sharedMemory, location, size);
+                UnmapViewInternal(sharedMemory, location, size, owner);
                 MapViewInternal(sharedMemory, srcOffset, location, size);
             }
             finally
@@ -173,13 +218,14 @@ namespace Ryujinx.Memory.WindowsShared
         /// <param name="sharedMemory">Shared memory that the view being unmapped belongs to</param>
         /// <param name="location">Address to unmap</param>
         /// <param name="size">Size of the region to unmap in bytes</param>
-        public void UnmapView(IntPtr sharedMemory, IntPtr location, IntPtr size)
+        /// <param name="owner">Memory block that owns the mapping</param>
+        public void UnmapView(IntPtr sharedMemory, IntPtr location, IntPtr size, MemoryBlock owner)
         {
             _partialUnmapLock.AcquireReaderLock(Timeout.Infinite);
 
             try
             {
-                UnmapViewInternal(sharedMemory, location, size);
+                UnmapViewInternal(sharedMemory, location, size, owner);
             }
             finally
             {
@@ -197,8 +243,9 @@ namespace Ryujinx.Memory.WindowsShared
         /// <param name="sharedMemory">Shared memory that the view being unmapped belongs to</param>
         /// <param name="location">Address to unmap</param>
         /// <param name="size">Size of the region to unmap in bytes</param>
+        /// <param name="owner">Memory block that owns the mapping</param>
         /// <exception cref="WindowsApiException">Thrown when the Windows API returns an error unmapping or remapping the memory</exception>
-        private void UnmapViewInternal(IntPtr sharedMemory, IntPtr location, IntPtr size)
+        private void UnmapViewInternal(IntPtr sharedMemory, IntPtr location, IntPtr size, MemoryBlock owner)
         {
             ulong startAddress = (ulong)location;
             ulong unmapSize = (ulong)size;
@@ -272,7 +319,7 @@ namespace Ryujinx.Memory.WindowsShared
                 }
             }
 
-            CoalesceForUnmap(startAddress, unmapSize);
+            CoalesceForUnmap(startAddress, unmapSize, owner);
             RemoveProtection(startAddress, unmapSize);
         }
 
@@ -281,15 +328,21 @@ namespace Ryujinx.Memory.WindowsShared
         /// </summary>
         /// <param name="address">Address of the region that was unmapped</param>
         /// <param name="size">Size of the region that was unmapped in bytes</param>
-        private void CoalesceForUnmap(ulong address, ulong size)
+        /// <param name="owner">Memory block that owns the mapping</param>
+        private void CoalesceForUnmap(ulong address, ulong size, MemoryBlock owner)
         {
             ulong endAddress = address + size;
+            ulong blockAddress = (ulong)owner.Pointer;
+            ulong blockEnd = blockAddress + owner.Size;
             var overlaps = Array.Empty<IntervalTreeNode<ulong, ulong>>();
             int unmappedCount = 0;
 
             lock (_mappings)
             {
-                int count = _mappings.Get(address - MinimumPageSize, endAddress + MinimumPageSize, ref overlaps);
+                int count = _mappings.Get(
+                    Math.Max(address - MinimumPageSize, blockAddress),
+                    Math.Min(endAddress + MinimumPageSize, blockEnd), ref overlaps);
+
                 if (count < 2)
                 {
                     // Nothing to coalesce if we only have 1 or no overlaps.