Bind Skottie's Animation Builder (#2630)

benchmarks/SkiaSharp.Benchmarks.sln

@@ -13,6 +13,8 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "SkiaSharp.Benchmarks", "Ski
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "SkiaSharp.SceneGraph", "..\binding\SkiaSharp.SceneGraph\SkiaSharp.SceneGraph.csproj", "{42B5D998-A676-4B50-B558-1D3ACA7D3FC4}"
 EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "SkiaSharp.Resources", "..\binding\SkiaSharp.Resources\SkiaSharp.Resources.csproj", "{AD2C6978-4F5E-E592-B565-26C357877B2C}"
+EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "SkiaSharp.Skottie", "..\binding\SkiaSharp.Skottie\SkiaSharp.Skottie.csproj", "{DD03EAA1-A85D-4588-8B84-8285EC1979C8}"
 EndProject
 Global

binding/SkiaSharp.Resources/Properties/SkiaSharpResourcesAssemblyInfo.cs

@@ -0,0 +1,36 @@
+using System;
+using System.Reflection;
+using System.Resources;
+using System.Runtime.CompilerServices;
+
+[assembly: AssemblyTitle("SkiaSharp.Resources")]
+[assembly: AssemblyDescription("This package adds lottie support to SkiaSharp via skottie.")]
+[assembly: AssemblyCompany("Microsoft Corporation")]
+[assembly: AssemblyProduct("SkiaSharp")]
+[assembly: AssemblyCopyright("© Microsoft Corporation. All rights reserved.")]
+[assembly: NeutralResourcesLanguage("en")]
+
+[assembly: InternalsVisibleTo("SkiaSharp.Tests, PublicKey=" +
+	"002400000480000094000000060200000024000052534131000400000100010079159977d2d03a" +
+	"8e6bea7a2e74e8d1afcc93e8851974952bb480a12c9134474d04062447c37e0e68c080536fcf3c" +
+	"3fbe2ff9c979ce998475e506e8ce82dd5b0f350dc10e93bf2eeecf874b24770c5081dbea7447fd" +
+	"dafa277b22de47d6ffea449674a4f9fccf84d15069089380284dbdd35f46cdff12a1bd78e4ef00" +
+	"65d016df")]
+
+[assembly: InternalsVisibleTo("SkiaSharp.Benchmarks, PublicKey=" +
+	"002400000480000094000000060200000024000052534131000400000100010079159977d2d03a" +
+	"8e6bea7a2e74e8d1afcc93e8851974952bb480a12c9134474d04062447c37e0e68c080536fcf3c" +
+	"3fbe2ff9c979ce998475e506e8ce82dd5b0f350dc10e93bf2eeecf874b24770c5081dbea7447fd" +
+	"dafa277b22de47d6ffea449674a4f9fccf84d15069089380284dbdd35f46cdff12a1bd78e4ef00" +
+	"65d016df")]
+
+[assembly: AssemblyMetadata("IsTrimmable", "True")]
+
+#if __IOS__ || __TVOS__ || __MACOS__
+// This attribute allows you to mark your assemblies as “safe to link”.
+// When the attribute is present, the linker—if enabled—will process the assembly
+// even if you’re using the “Link SDK assemblies only” option, which is the default for device builds.
+#pragma warning disable CS0618 // Type or member is obsolete
+[assembly: Foundation.LinkerSafe]
+#pragma warning restore CS0618 // Type or member is obsolete
+#endif

binding/SkiaSharp.Resources/ResourceProvider.cs

@@ -0,0 +1,64 @@
+using System;
+
+namespace SkiaSharp.Resources
+{
+	public abstract unsafe class ResourceProvider : SKObject, ISKReferenceCounted, ISKSkipObjectRegistration
+	{
+		internal ResourceProvider (IntPtr handle, bool owns)
+			: base (handle, owns)
+		{
+		}
+
+		public SKData? Load (string resourceName) =>
+			Load ("", resourceName);
+
+		public SKData? Load (string resourcePath, string resourceName) =>
+			SKData.GetObject (ResourcesApi.skresources_resource_provider_load (Handle, resourcePath, resourceName));
+	}
+
+	public sealed class CachingResourceProvider : ResourceProvider
+	{
+		public CachingResourceProvider (ResourceProvider resourceProvider)
+			: base (Create (resourceProvider), true)
+		{
+			Referenced(this, resourceProvider);
+		}
+
+		private static IntPtr Create (ResourceProvider resourceProvider)
+		{
+			_ = resourceProvider ?? throw new ArgumentNullException (nameof (resourceProvider));
+			return ResourcesApi.skresources_caching_resource_provider_proxy_make (resourceProvider.Handle);
+		}
+	}
+
+	public sealed class DataUriResourceProvider : ResourceProvider
+	{
+		public DataUriResourceProvider (bool preDecode = false)
+			: this (null, preDecode)
+		{
+		}
+
+		public DataUriResourceProvider (ResourceProvider? fallbackProvider, bool preDecode = false)
+			: base (Create (fallbackProvider, preDecode), true)
+		{
+			Referenced (this, fallbackProvider);
+		}
+
+		private static IntPtr Create (ResourceProvider? fallbackProvider, bool preDecode = false) =>
+			ResourcesApi.skresources_data_uri_resource_provider_proxy_make (fallbackProvider?.Handle ?? IntPtr.Zero, preDecode);
+	}
+
+	public sealed class FileResourceProvider : ResourceProvider
+	{
+		public FileResourceProvider (string baseDirectory, bool preDecode = false)
+			: base (Create (baseDirectory, preDecode), true)
+		{
+		}
+
+		private static IntPtr Create (string baseDirectory, bool preDecode)
+		{
+			using var baseDir = new SKString(baseDirectory ?? throw new ArgumentNullException (nameof (baseDirectory)));
+			return ResourcesApi.skresources_file_resource_provider_make (baseDir.Handle, preDecode);
+		}
+	}
+}

binding/SkiaSharp.Resources/ResourcesApi.cs

@@ -0,0 +1,23 @@
+#nullable disable
+
+using System;
+
+namespace SkiaSharp
+{
+	internal partial class ResourcesApi
+	{
+#if __IOS__ || __TVOS__
+		private const string SKIA = "@rpath/libSkiaSharp.framework/libSkiaSharp";
+#else
+		private const string SKIA = "libSkiaSharp";
+#endif
+
+#if USE_DELEGATES
+		private static readonly Lazy<IntPtr> libSkiaSharpHandle =
+			new Lazy<IntPtr> (() => LibraryLoader.LoadLocalLibrary<SkiaApi> (SKIA));
+
+		private static T GetSymbol<T> (string name) where T : Delegate =>
+			LibraryLoader.GetSymbolDelegate<T> (libSkiaSharpHandle.Value, name);
+#endif
+	}
+}