GPU resource disposal

11 files changed, 122 insertions, 32 deletions

diff --git a/Ryujinx.Graphics.Gpu/Engine/Compute.cs b/Ryujinx.Graphics.Gpu/Engine/Compute.cs
index 50aac1d0..1f524671 100644
--- a/Ryujinx.Graphics.Gpu/Engine/Compute.cs
+++ b/Ryujinx.Graphics.Gpu/Engine/Compute.cs
@@ -28,7 +28,7 @@ namespace Ryujinx.Graphics.Gpu.Engine
             // Note: A size of 0 is also invalid, the size must be at least 1.
             int sharedMemorySize = Math.Clamp(dispatchParams.SharedMemorySize & 0xffff, 1, _context.Capabilities.MaximumComputeSharedMemorySize);
 
-            ComputeShader cs = _shaderCache.GetComputeShader(
+            ComputeShader cs = ShaderCache.GetComputeShader(
                 shaderGpuVa,
                 sharedMemorySize,
                 dispatchParams.UnpackBlockSizeX(),
diff --git a/Ryujinx.Graphics.Gpu/Engine/Methods.cs b/Ryujinx.Graphics.Gpu/Engine/Methods.cs
index 0a52bee9..12a9744c 100644
--- a/Ryujinx.Graphics.Gpu/Engine/Methods.cs
+++ b/Ryujinx.Graphics.Gpu/Engine/Methods.cs
@@ -18,12 +18,14 @@ namespace Ryujinx.Graphics.Gpu.Engine
     partial class Methods
     {
         private readonly GpuContext _context;
-
-        private readonly ShaderCache _shaderCache;
-
         private readonly ShaderProgramInfo[] _currentProgramInfo;
 
         /// <summary>
+        /// In-memory shader cache.
+        /// </summary>
+        public ShaderCache ShaderCache { get; }
+
+        /// <summary>
         /// GPU buffer manager.
         /// </summary>
         public BufferManager BufferManager { get; }
@@ -44,7 +46,7 @@ namespace Ryujinx.Graphics.Gpu.Engine
         {
             _context = context;
 
-            _shaderCache = new ShaderCache(_context);
+            ShaderCache = new ShaderCache(_context);
 
             _currentProgramInfo = new ShaderProgramInfo[Constants.TotalShaderStages];
 
@@ -757,13 +759,13 @@ namespace Ryujinx.Graphics.Gpu.Engine
                 addressesArray[index] = baseAddress + shader.Offset;
             }
 
-            GraphicsShader gs = _shaderCache.GetGraphicsShader(state, addresses);
+            GraphicsShader gs = ShaderCache.GetGraphicsShader(state, addresses);
 
-            _vsUsesInstanceId = gs.Shader[0].Program.Info.UsesInstanceId;
+            _vsUsesInstanceId = gs.Shaders[0].Program.Info.UsesInstanceId;
 
             for (int stage = 0; stage < Constants.TotalShaderStages; stage++)
             {
-                ShaderProgramInfo info = gs.Shader[stage].Program?.Info;
+                ShaderProgramInfo info = gs.Shaders[stage].Program?.Info;
 
                 _currentProgramInfo[stage] = info;
 
diff --git a/Ryujinx.Graphics.Gpu/GpuContext.cs b/Ryujinx.Graphics.Gpu/GpuContext.cs
index d68dd2c0..034cc065 100644
--- a/Ryujinx.Graphics.Gpu/GpuContext.cs
+++ b/Ryujinx.Graphics.Gpu/GpuContext.cs
@@ -8,7 +8,7 @@ namespace Ryujinx.Graphics.Gpu
     /// <summary>
     /// GPU emulation context.
     /// </summary>
-    public class GpuContext
+    public sealed class GpuContext : IDisposable
     {
         /// <summary>
         /// Host renderer.
@@ -104,5 +104,18 @@ namespace Ryujinx.Graphics.Gpu
         {
             PhysicalMemory = new PhysicalMemory(cpuMemory);
         }
+
+        /// <summary>
+        /// Disposes all GPU resources currently cached.
+        /// It's an error to push any GPU commands after disposal.
+        /// Additionally, the GPU commands FIFO must be empty for disposal,
+        /// and processing of all commands must have finished.
+        /// </summary>
+        public void Dispose()
+        {
+            Methods.ShaderCache.Dispose();
+            Methods.BufferManager.Dispose();
+            Methods.TextureManager.Dispose();
+        }
     }
 }
\ No newline at end of file
diff --git a/Ryujinx.Graphics.Gpu/Image/Texture.cs b/Ryujinx.Graphics.Gpu/Image/Texture.cs
index 9b5c19f3..076718e5 100644
--- a/Ryujinx.Graphics.Gpu/Image/Texture.cs
+++ b/Ryujinx.Graphics.Gpu/Image/Texture.cs
@@ -13,7 +13,7 @@ namespace Ryujinx.Graphics.Gpu.Image
     /// <summary>
     /// Represents a cached GPU texture.
     /// </summary>
-    class Texture : IRange<Texture>
+    class Texture : IRange<Texture>, IDisposable
     {
         private GpuContext _context;
 
@@ -1011,5 +1011,13 @@ namespace Ryujinx.Graphics.Gpu.Image
             _arrayViewTexture?.Dispose();
             _arrayViewTexture = null;
         }
+
+        /// <summary>
+        /// Performs texture disposal, deleting the texture.
+        /// </summary>
+        public void Dispose()
+        {
+            DisposeTextures();
+        }
     }
 }
\ No newline at end of file
diff --git a/Ryujinx.Graphics.Gpu/Image/TextureManager.cs b/Ryujinx.Graphics.Gpu/Image/TextureManager.cs
index ecc5dc51..e0a8908a 100644
--- a/Ryujinx.Graphics.Gpu/Image/TextureManager.cs
+++ b/Ryujinx.Graphics.Gpu/Image/TextureManager.cs
@@ -11,7 +11,7 @@ namespace Ryujinx.Graphics.Gpu.Image
     /// <summary>
     /// Texture manager.
     /// </summary>
-    class TextureManager
+    class TextureManager : IDisposable
     {
         private const int OverlapsBufferInitialCapacity = 10;
         private const int OverlapsBufferMaxCapacity     = 10000;
@@ -761,5 +761,17 @@ namespace Ryujinx.Graphics.Gpu.Image
         {
             _textures.Remove(texture);
         }
+
+        /// <summary>
+        /// Disposes all textures in the cache.
+        /// It's an error to use the texture manager after disposal.
+        /// </summary>
+        public void Dispose()
+        {
+            foreach (Texture texture in _textures)
+            {
+                texture.Dispose();
+            }
+        }
     }
 }
\ No newline at end of file
diff --git a/Ryujinx.Graphics.Gpu/Memory/BufferManager.cs b/Ryujinx.Graphics.Gpu/Memory/BufferManager.cs
index 1d27bc7e..44542349 100644
--- a/Ryujinx.Graphics.Gpu/Memory/BufferManager.cs
+++ b/Ryujinx.Graphics.Gpu/Memory/BufferManager.cs
@@ -683,5 +683,17 @@ namespace Ryujinx.Graphics.Gpu.Memory
                 buffer.SynchronizeMemory(address, size);
             }
         }
+
+        /// <summary>
+        /// Disposes all buffers in the cache.
+        /// It's an error to use the buffer manager after disposal.
+        /// </summary>
+        public void Dispose()
+        {
+            foreach (Buffer buffer in _buffers)
+            {
+                buffer.Dispose();
+            }
+        }
     }
 }
\ No newline at end of file
diff --git a/Ryujinx.Graphics.Gpu/Memory/RangeList.cs b/Ryujinx.Graphics.Gpu/Memory/RangeList.cs
index 1d185e21..75be1cf2 100644
--- a/Ryujinx.Graphics.Gpu/Memory/RangeList.cs
+++ b/Ryujinx.Graphics.Gpu/Memory/RangeList.cs
@@ -1,4 +1,5 @@
 using System;
+using System.Collections;
 using System.Collections.Generic;
 
 namespace Ryujinx.Graphics.Gpu.Memory
@@ -7,11 +8,11 @@ namespace Ryujinx.Graphics.Gpu.Memory
     /// List of GPU resources with data on guest memory.
     /// </summary>
     /// <typeparam name="T">Type of the GPU resource</typeparam>
-    class RangeList<T> where T : IRange<T>
+    class RangeList<T> : IEnumerable<T> where T : IRange<T>
     {
         private const int ArrayGrowthSize = 32;
 
-        private List<T> _items;
+        private readonly List<T> _items;
 
         /// <summary>
         /// Creates a new GPU resources list.
@@ -320,5 +321,15 @@ namespace Ryujinx.Graphics.Gpu.Memory
 
             return ~left;
         }
+
+        public IEnumerator<T> GetEnumerator()
+        {
+            return _items.GetEnumerator();
+        }
+
+        IEnumerator IEnumerable.GetEnumerator()
+        {
+            return _items.GetEnumerator();
+        }
     }
 }
\ No newline at end of file
diff --git a/Ryujinx.Graphics.Gpu/NvGpuFifo.cs b/Ryujinx.Graphics.Gpu/NvGpuFifo.cs
index 6f51527f..9e154533 100644
--- a/Ryujinx.Graphics.Gpu/NvGpuFifo.cs
+++ b/Ryujinx.Graphics.Gpu/NvGpuFifo.cs
@@ -21,6 +21,9 @@ namespace Ryujinx.Graphics.Gpu
         /// </summary>
         private struct CachedMacro
         {
+            /// <summary>
+            /// Word offset of the code on the code memory.
+            /// </summary>
             public int Position { get; }
 
             private bool _executionPending;
diff --git a/Ryujinx.Graphics.Gpu/Shader/CachedShader.cs b/Ryujinx.Graphics.Gpu/Shader/CachedShader.cs
index 362d149a..418a4f40 100644
--- a/Ryujinx.Graphics.Gpu/Shader/CachedShader.cs
+++ b/Ryujinx.Graphics.Gpu/Shader/CachedShader.cs
@@ -16,7 +16,7 @@ namespace Ryujinx.Graphics.Gpu.Shader
         /// <summary>
         /// Host shader object.
         /// </summary>
-        public IShader Shader { get; set; }
+        public IShader HostShader { get; set; }
 
         /// <summary>
         /// Maxwell binary shader code.
diff --git a/Ryujinx.Graphics.Gpu/Shader/GraphicsShader.cs b/Ryujinx.Graphics.Gpu/Shader/GraphicsShader.cs
index 14c8e5c2..a1493236 100644
--- a/Ryujinx.Graphics.Gpu/Shader/GraphicsShader.cs
+++ b/Ryujinx.Graphics.Gpu/Shader/GraphicsShader.cs
@@ -15,14 +15,14 @@ namespace Ryujinx.Graphics.Gpu.Shader
         /// <summary>
         /// Compiled shader for each shader stage.
         /// </summary>
-        public CachedShader[] Shader { get; }
+        public CachedShader[] Shaders { get; }
 
         /// <summary>
         /// Creates a new instance of cached graphics shader.
         /// </summary>
         public GraphicsShader()
         {
-            Shader = new CachedShader[5];
+            Shaders = new CachedShader[5];
         }
     }
 }
\ No newline at end of file
diff --git a/Ryujinx.Graphics.Gpu/Shader/ShaderCache.cs b/Ryujinx.Graphics.Gpu/Shader/ShaderCache.cs
index b299da1a..ad2a6037 100644
--- a/Ryujinx.Graphics.Gpu/Shader/ShaderCache.cs
+++ b/Ryujinx.Graphics.Gpu/Shader/ShaderCache.cs
@@ -14,7 +14,7 @@ namespace Ryujinx.Graphics.Gpu.Shader
     /// <summary>
     /// Memory cache of shader code.
     /// </summary>
-    class ShaderCache
+    class ShaderCache : IDisposable
     {
         private const int MaxProgramSize = 0x100000;
 
@@ -117,25 +117,25 @@ namespace Ryujinx.Graphics.Gpu.Shader
 
             if (addresses.VertexA != 0)
             {
-                gpShaders.Shader[0] = TranslateGraphicsShader(state, ShaderStage.Vertex, addresses.Vertex, addresses.VertexA);
+                gpShaders.Shaders[0] = TranslateGraphicsShader(state, ShaderStage.Vertex, addresses.Vertex, addresses.VertexA);
             }
             else
             {
-                gpShaders.Shader[0] = TranslateGraphicsShader(state, ShaderStage.Vertex, addresses.Vertex);
+                gpShaders.Shaders[0] = TranslateGraphicsShader(state, ShaderStage.Vertex, addresses.Vertex);
             }
 
-            gpShaders.Shader[1] = TranslateGraphicsShader(state, ShaderStage.TessellationControl,    addresses.TessControl);
-            gpShaders.Shader[2] = TranslateGraphicsShader(state, ShaderStage.TessellationEvaluation, addresses.TessEvaluation);
-            gpShaders.Shader[3] = TranslateGraphicsShader(state, ShaderStage.Geometry,               addresses.Geometry);
-            gpShaders.Shader[4] = TranslateGraphicsShader(state, ShaderStage.Fragment,               addresses.Fragment);
+            gpShaders.Shaders[1] = TranslateGraphicsShader(state, ShaderStage.TessellationControl,    addresses.TessControl);
+            gpShaders.Shaders[2] = TranslateGraphicsShader(state, ShaderStage.TessellationEvaluation, addresses.TessEvaluation);
+            gpShaders.Shaders[3] = TranslateGraphicsShader(state, ShaderStage.Geometry,               addresses.Geometry);
+            gpShaders.Shaders[4] = TranslateGraphicsShader(state, ShaderStage.Fragment,               addresses.Fragment);
 
             BackpropQualifiers(gpShaders);
 
             List<IShader> hostShaders = new List<IShader>();
 
-            for (int stage = 0; stage < gpShaders.Shader.Length; stage++)
+            for (int stage = 0; stage < gpShaders.Shaders.Length; stage++)
             {
-                ShaderProgram program = gpShaders.Shader[stage].Program;
+                ShaderProgram program = gpShaders.Shaders[stage].Program;
 
                 if (program == null)
                 {
@@ -144,7 +144,7 @@ namespace Ryujinx.Graphics.Gpu.Shader
 
                 IShader hostShader = _context.Renderer.CompileShader(program);
 
-                gpShaders.Shader[stage].Shader = hostShader;
+                gpShaders.Shaders[stage].HostShader = hostShader;
 
                 hostShaders.Add(hostShader);
             }
@@ -182,9 +182,9 @@ namespace Ryujinx.Graphics.Gpu.Shader
         /// <returns>True if the code is different, false otherwise</returns>
         private bool IsShaderDifferent(GraphicsShader gpShaders, ShaderAddresses addresses)
         {
-            for (int stage = 0; stage < gpShaders.Shader.Length; stage++)
+            for (int stage = 0; stage < gpShaders.Shaders.Length; stage++)
             {
-                CachedShader shader = gpShaders.Shader[stage];
+                CachedShader shader = gpShaders.Shaders[stage];
 
                 if (shader.Code == null)
                 {
@@ -370,13 +370,13 @@ namespace Ryujinx.Graphics.Gpu.Shader
         /// <param name="program">Graphics shader cached code</param>
         private void BackpropQualifiers(GraphicsShader program)
         {
-            ShaderProgram fragmentShader = program.Shader[4].Program;
+            ShaderProgram fragmentShader = program.Shaders[4].Program;
 
             bool isFirst = true;
 
             for (int stage = 3; stage >= 0; stage--)
             {
-                if (program.Shader[stage].Program == null)
+                if (program.Shaders[stage].Program == null)
                 {
                     continue;
                 }
@@ -389,11 +389,11 @@ namespace Ryujinx.Graphics.Gpu.Shader
 
                     if (isFirst && iq != string.Empty)
                     {
-                        program.Shader[stage].Program.Replace($"{DefineNames.OutQualifierPrefixName}{attr}", iq);
+                        program.Shaders[stage].Program.Replace($"{DefineNames.OutQualifierPrefixName}{attr}", iq);
                     }
                     else
                     {
-                        program.Shader[stage].Program.Replace($"{DefineNames.OutQualifierPrefixName}{attr} ", string.Empty);
+                        program.Shaders[stage].Program.Replace($"{DefineNames.OutQualifierPrefixName}{attr} ", string.Empty);
                     }
                 }
 
@@ -497,5 +497,34 @@ namespace Ryujinx.Graphics.Gpu.Shader
 
             return 0;
         }
+
+        /// <summary>
+        /// Disposes the shader cache, deleting all the cached shaders.
+        /// It's an error to use the shader cache after disposal.
+        /// </summary>
+        public void Dispose()
+        {
+            foreach (List<ComputeShader> list in _cpPrograms.Values)
+            {
+                foreach (ComputeShader shader in list)
+                {
+                    shader.HostProgram.Dispose();
+                    shader.Shader.HostShader.Dispose();
+                }
+            }
+
+            foreach (List<GraphicsShader> list in _gpPrograms.Values)
+            {
+                foreach (GraphicsShader shader in list)
+                {
+                    shader.HostProgram.Dispose();
+
+                    foreach (CachedShader cachedShader in shader.Shaders)
+                    {
+                        cachedShader.HostShader?.Dispose();
+                    }
+                }
+            }
+        }
     }
 }
\ No newline at end of file