Do not try to create a texture pool if shader does not use textures (#7379)

Ryujinx was not hinting application name, so on some platforms (e.g.
Linux) volume control shows Ryujinx as 'SDL Application'. This can cause
confusion.

This commit fixes name in volume control applets on some platforms.

see: https://wiki.libsdl.org/SDL2/SDL_HINT_APP_NAME

src/Ryujinx.Graphics.GAL/Capabilities.cs

@@ -71,6 +71,8 @@ namespace Ryujinx.Graphics.GAL
 
         public readonly int GatherBiasPrecision;
 
+        public readonly ulong MaximumGpuMemory;
+
         public Capabilities(
             TargetApi api,
             string vendorName,
@@ -131,7 +133,8 @@ namespace Ryujinx.Graphics.GAL
             int shaderSubgroupSize,
             int storageBufferOffsetAlignment,
             int textureBufferOffsetAlignment,
-            int gatherBiasPrecision)
+            int gatherBiasPrecision,
+            ulong maximumGpuMemory)
         {
             Api = api;
             VendorName = vendorName;
@@ -193,6 +196,7 @@ namespace Ryujinx.Graphics.GAL
             StorageBufferOffsetAlignment = storageBufferOffsetAlignment;
             TextureBufferOffsetAlignment = textureBufferOffsetAlignment;
             GatherBiasPrecision = gatherBiasPrecision;
+            MaximumGpuMemory = maximumGpuMemory;
         }
     }
 }

src/Ryujinx.Graphics.Gpu/Image/AutoDeleteCache.cs

@@ -1,3 +1,4 @@
+using System;
 using System.Collections;
 using System.Collections.Generic;
 
@@ -46,7 +47,11 @@ namespace Ryujinx.Graphics.Gpu.Image
     {
         private const int MinCountForDeletion = 32;
         private const int MaxCapacity = 2048;
-        private const ulong MaxTextureSizeCapacity = 1024 * 1024 * 1024; // MB;
+        private const ulong MinTextureSizeCapacity = 512 * 1024 * 1024;
+        private const ulong MaxTextureSizeCapacity = 4UL * 1024 * 1024 * 1024;
+        private const ulong DefaultTextureSizeCapacity = 1UL * 1024 * 1024 * 1024;
+        private const float MemoryScaleFactor = 0.50f;
+        private ulong _maxCacheMemoryUsage = 0;
 
         private readonly LinkedList<Texture> _textures;
         private ulong _totalSize;
@@ -56,6 +61,25 @@ namespace Ryujinx.Graphics.Gpu.Image
 
         private readonly Dictionary<TextureDescriptor, ShortTextureCacheEntry> _shortCacheLookup;
 
+        /// <summary>
+        /// Initializes the cache, setting the maximum texture capacity for the specified GPU context.
+        /// </summary>
+        /// <remarks>
+        /// If the backend GPU has 0 memory capacity, the cache size defaults to `DefaultTextureSizeCapacity`.
+        /// </remarks>
+        /// <param name="context">The GPU context that the cache belongs to</param>
+        public void Initialize(GpuContext context)
+        {
+            var cacheMemory = (ulong)(context.Capabilities.MaximumGpuMemory * MemoryScaleFactor);
+
+            _maxCacheMemoryUsage = Math.Clamp(cacheMemory, MinTextureSizeCapacity, MaxTextureSizeCapacity);
+
+            if (context.Capabilities.MaximumGpuMemory == 0)
+            {
+                _maxCacheMemoryUsage = DefaultTextureSizeCapacity;
+            }
+        }
+
         /// <summary>
         /// Creates a new instance of the automatic deletion cache.
         /// </summary>
@@ -85,7 +109,7 @@ namespace Ryujinx.Graphics.Gpu.Image
             texture.CacheNode = _textures.AddLast(texture);
 
             if (_textures.Count > MaxCapacity ||
-                (_totalSize > MaxTextureSizeCapacity && _textures.Count >= MinCountForDeletion))
+                (_totalSize > _maxCacheMemoryUsage && _textures.Count >= MinCountForDeletion))
             {
                 RemoveLeastUsedTexture();
             }
@@ -110,7 +134,7 @@ namespace Ryujinx.Graphics.Gpu.Image
                     _textures.AddLast(texture.CacheNode);
                 }
 
-                if (_totalSize > MaxTextureSizeCapacity && _textures.Count >= MinCountForDeletion)
+                if (_totalSize > _maxCacheMemoryUsage && _textures.Count >= MinCountForDeletion)
                 {
                     RemoveLeastUsedTexture();
                 }

src/Ryujinx.Graphics.Gpu/Image/TextureCache.cs

@@ -68,6 +68,14 @@ namespace Ryujinx.Graphics.Gpu.Image
             _cache = new AutoDeleteCache();
         }
 
+        /// <summary>
+        /// Initializes the cache, setting the maximum texture capacity for the specified GPU context.
+        /// </summary>
+        public void Initialize()
+        {
+            _cache.Initialize(_context);
+        }
+
         /// <summary>
         /// Handles marking of textures written to a memory region being (partially) remapped.
         /// </summary>

src/Ryujinx.Graphics.Gpu/Memory/MemoryManager.cs

@@ -1,4 +1,5 @@
 using Ryujinx.Common.Memory;
+using Ryujinx.Graphics.Gpu.Image;
 using Ryujinx.Memory;
 using Ryujinx.Memory.Range;
 using System;
@@ -64,6 +65,7 @@ namespace Ryujinx.Graphics.Gpu.Memory
             MemoryUnmapped += Physical.BufferCache.MemoryUnmappedHandler;
             MemoryUnmapped += VirtualRangeCache.MemoryUnmappedHandler;
             MemoryUnmapped += CounterCache.MemoryUnmappedHandler;
+            Physical.TextureCache.Initialize();
         }
 
         /// <summary>

src/Ryujinx.Graphics.Gpu/Shader/DiskCache/DiskCacheHostStorage.cs

@@ -22,7 +22,7 @@ namespace Ryujinx.Graphics.Gpu.Shader.DiskCache
         private const ushort FileFormatVersionMajor = 1;
         private const ushort FileFormatVersionMinor = 2;
         private const uint FileFormatVersionPacked = ((uint)FileFormatVersionMajor << 16) | FileFormatVersionMinor;
-        private const uint CodeGenVersion = 7331;
+        private const uint CodeGenVersion = 7353;
 
         private const string SharedTocFileName = "shared.toc";
         private const string SharedDataFileName = "shared.data";

src/Ryujinx.Graphics.Gpu/Shader/ShaderSpecializationState.cs

@@ -743,7 +743,7 @@ namespace Ryujinx.Graphics.Gpu.Shader
                 constantBufferUsePerStageMask &= ~(1 << index);
             }
 
-            if (checkTextures)
+            if (checkTextures && _allTextures.Length > 0)
             {
                 TexturePool pool = channel.TextureManager.GetTexturePool(poolState.TexturePoolGpuVa, poolState.TexturePoolMaximumId);
 

src/Ryujinx.Graphics.OpenGL/OpenGLRenderer.cs

@@ -202,7 +202,8 @@ namespace Ryujinx.Graphics.OpenGL
                 shaderSubgroupSize: Constants.MaxSubgroupSize,
                 storageBufferOffsetAlignment: HwCapabilities.StorageBufferOffsetAlignment,
                 textureBufferOffsetAlignment: HwCapabilities.TextureBufferOffsetAlignment,
-                gatherBiasPrecision: intelWindows || amdWindows ? 8 : 0); // Precision is 8 for these vendors on Vulkan.
+                gatherBiasPrecision: intelWindows || amdWindows ? 8 : 0, // Precision is 8 for these vendors on Vulkan.
+                maximumGpuMemory: 0);
         }
 
         public void SetBufferData(BufferHandle buffer, int offset, ReadOnlySpan<byte> data)

src/Ryujinx.Graphics.Shader/Translation/Translator.cs

@@ -190,7 +190,7 @@ namespace Ryujinx.Graphics.Shader.Translation
 
             if (stage == ShaderStage.Vertex)
             {
-                InitializePositionOutput(context);
+                InitializeVertexOutputs(context);
             }
 
             UInt128 usedAttributes = context.TranslatorContext.AttributeUsage.NextInputAttributesComponents;
@@ -236,12 +236,20 @@ namespace Ryujinx.Graphics.Shader.Translation
             }
         }
 
-        private static void InitializePositionOutput(EmitterContext context)
+        private static void InitializeVertexOutputs(EmitterContext context)
         {
             for (int c = 0; c < 4; c++)
             {
                 context.Store(StorageKind.Output, IoVariable.Position, null, Const(c), ConstF(c == 3 ? 1f : 0f));
             }
+
+            if (context.Program.ClipDistancesWritten != 0)
+            {
+                for (int i = 0; i < 8; i++)
+                {
+                    context.Store(StorageKind.Output, IoVariable.ClipDistance, null, Const(i), ConstF(0f));
+                }
+            }
         }
 
         private static void InitializeOutput(EmitterContext context, int location, bool perPatch)

src/Ryujinx.Graphics.Vulkan/VulkanRenderer.cs

@@ -781,7 +781,26 @@ namespace Ryujinx.Graphics.Vulkan
                 shaderSubgroupSize: (int)Capabilities.SubgroupSize,
                 storageBufferOffsetAlignment: (int)limits.MinStorageBufferOffsetAlignment,
                 textureBufferOffsetAlignment: (int)limits.MinTexelBufferOffsetAlignment,
-                gatherBiasPrecision: IsIntelWindows || IsAmdWindows ? (int)Capabilities.SubTexelPrecisionBits : 0);
+                gatherBiasPrecision: IsIntelWindows || IsAmdWindows ? (int)Capabilities.SubTexelPrecisionBits : 0,
+                maximumGpuMemory: GetTotalGPUMemory());
+        }
+
+        private ulong GetTotalGPUMemory()
+        {
+            ulong totalMemory = 0;
+
+            Api.GetPhysicalDeviceMemoryProperties(_physicalDevice.PhysicalDevice, out PhysicalDeviceMemoryProperties memoryProperties);
+
+            for (int i = 0; i < memoryProperties.MemoryHeapCount; i++)
+            {
+                var heap = memoryProperties.MemoryHeaps[i];
+                if ((heap.Flags & MemoryHeapFlags.DeviceLocalBit) == MemoryHeapFlags.DeviceLocalBit)
+                {
+                    totalMemory += heap.Size;
+                }
+            }
+
+            return totalMemory;
         }
 
         public HardwareInfo GetHardwareInfo()
@@ -865,6 +884,7 @@ namespace Ryujinx.Graphics.Vulkan
         private void PrintGpuInformation()
         {
             Logger.Notice.Print(LogClass.Gpu, $"{GpuVendor} {GpuRenderer} ({GpuVersion})");
+            Logger.Notice.Print(LogClass.Gpu, $"GPU Memory: {GetTotalGPUMemory() / (1024 * 1024)} MiB");
         }
 
         public void Initialize(GraphicsDebugLevel logLevel)

src/Ryujinx.SDL2.Common/SDL2Driver.cs

@@ -53,6 +53,7 @@ namespace Ryujinx.SDL2.Common
                     return;
                 }
 
+                SDL_SetHint(SDL_HINT_APP_NAME, "Ryujinx");
                 SDL_SetHint(SDL_HINT_JOYSTICK_HIDAPI_PS4_RUMBLE, "1");
                 SDL_SetHint(SDL_HINT_JOYSTICK_HIDAPI_PS5_RUMBLE, "1");
                 SDL_SetHint(SDL_HINT_JOYSTICK_ALLOW_BACKGROUND_EVENTS, "1");