Texture loading: reduce memory allocations (#6623)

* rebase

* add methods Ryyjinx.Common EmbeddedResources and SteamUtils

* GAL changes - change SetData() methods and ThreadedTexture commands to use IMemoryOwner<byte> instead of SpanOrArray<byte>

* Ryujinx.Graphics.Texture: change texture conversion methods to return IMemoryOwner<byte> and allocate from ByteMemoryPool

* Ryujinx.Graphics.OpenGL: update ITexture and Texture-like types with SetData() methods to take IMemoryOwner<byte> instead of SpanOrArray<byte>

* Ryujinx.Graphics.Vulkan: update ITexture and Texture-like types with SetData() methods to take IMemoryOwner<byte> instead of SpanOrArray<byte>

* Ryujinx.Graphics.Gpu: update ITexture and Texture-like types with SetData() methods to take IMemoryOwner<byte> instead of SpanOrArray<byte>

* Remove now-unused SpanOrArray<T>

* post-rebase cleanup

* PixelConverter: remove unsafe modifier on safe methods, and remove one unnecessary cast

* use ByteMemoryPool.Rent() in GetWritableRegion() impls

* fix formatting, rename `ReadRentedMemory()` to `ReadFileToRentedMemory()``

* Texture.ConvertToHostCompatibleFormat(): dispose of `result` in Astc decode branch

1 files changed, 9 insertions, 6 deletions

diff --git a/src/Ryujinx.Graphics.Texture/LayoutConverter.cs b/src/Ryujinx.Graphics.Texture/LayoutConverter.cs
index d9a666c3..d6732674 100644
--- a/src/Ryujinx.Graphics.Texture/LayoutConverter.cs
+++ b/src/Ryujinx.Graphics.Texture/LayoutConverter.cs
@@ -1,5 +1,7 @@
 using Ryujinx.Common;
+using Ryujinx.Common.Memory;
 using System;
+using System.Buffers;
 using System.Runtime.Intrinsics;
 using static Ryujinx.Graphics.Texture.BlockLinearConstants;
 
@@ -93,7 +95,7 @@ namespace Ryujinx.Graphics.Texture
             };
         }
 
-        public static byte[] ConvertBlockLinearToLinear(
+        public static IMemoryOwner<byte> ConvertBlockLinearToLinear(
             int width,
             int height,
             int depth,
@@ -119,7 +121,8 @@ namespace Ryujinx.Graphics.Texture
                 blockHeight,
                 bytesPerPixel);
 
-            byte[] output = new byte[outSize];
+            IMemoryOwner<byte> outputOwner = ByteMemoryPool.Rent(outSize);
+            Span<byte> output = outputOwner.Memory.Span;
 
             int outOffs = 0;
 
@@ -243,10 +246,10 @@ namespace Ryujinx.Graphics.Texture
                     _ => throw new NotSupportedException($"Unable to convert ${bytesPerPixel} bpp pixel format."),
                 };
             }
-            return output;
+            return outputOwner;
         }
 
-        public static byte[] ConvertLinearStridedToLinear(
+        public static IMemoryOwner<byte> ConvertLinearStridedToLinear(
             int width,
             int height,
             int blockWidth,
@@ -262,8 +265,8 @@ namespace Ryujinx.Graphics.Texture
             int outStride = BitUtils.AlignUp(w * bytesPerPixel, HostStrideAlignment);
             lineSize = Math.Min(lineSize, outStride);
 
-            byte[] output = new byte[h * outStride];
-            Span<byte> outSpan = output;
+            IMemoryOwner<byte> output = ByteMemoryPool.Rent(h * outStride);
+            Span<byte> outSpan = output.Memory.Span;
 
             int outOffs = 0;
             int inOffs = 0;