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* Retarget to SkiaSharp 3.0 * Replace SKFilterQuality with SKSamplingOptions * Replace obsolete GRBackendRenderTarget ctor * Replace SkiaMetalApi reflection with stable APIs * Use SKMatrix4x4 where it makes more sense perf wise * Add CS0618 warning as error for Skia * Fix ToSKSamplingOptions implementation * Remove hacky compile time condition * Update API compat * Remove maccatalyst hack --------- Co-authored-by: Julien Lebosquain <julien@lebosquain.net>pull/19209/head
Max Katz
7 months ago
committed by
GitHub
GitHub
16 changed files with 83 additions and 179 deletions
@ -1,108 +0,0 @@ |
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using System; |
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using System.Diagnostics.CodeAnalysis; |
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using System.Reflection; |
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using System.Runtime.CompilerServices; |
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using System.Runtime.InteropServices; |
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using Avalonia.Compatibility; |
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using Avalonia.Platform.Interop; |
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using SkiaSharp; |
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using BindingFlags = System.Reflection.BindingFlags; |
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namespace Avalonia.Skia.Metal; |
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internal unsafe class SkiaMetalApi |
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{ |
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delegate* unmanaged[Stdcall] <IntPtr, IntPtr, IntPtr, IntPtr> _gr_direct_context_make_metal_with_options; |
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private delegate* unmanaged[Stdcall]<int, int, int, GRMtlTextureInfoNative*, IntPtr> |
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_gr_backendrendertarget_new_metal; |
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private readonly ConstructorInfo _contextCtor; |
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private readonly MethodInfo _contextOptionsToNative; |
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private readonly ConstructorInfo _renderTargetCtor; |
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[DynamicDependency(DynamicallyAccessedMemberTypes.NonPublicConstructors, typeof(GRContext))] |
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[DynamicDependency(DynamicallyAccessedMemberTypes.NonPublicConstructors, typeof(GRBackendRenderTarget))] |
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[DynamicDependency(DynamicallyAccessedMemberTypes.NonPublicMethods, typeof(GRContextOptions))] |
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[DynamicDependency(DynamicallyAccessedMemberTypes.All, "SkiaSharp.GRContextOptionsNative", "SkiaSharp")] |
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public SkiaMetalApi() |
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{ |
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// Make sure that skia is loaded
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GC.KeepAlive(new SKPaint()); |
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// https://github.com/mono/SkiaSharp/blob/25e70a390e2128e5a54d28795365bf9fdaa7161c/binding/SkiaSharp/SkiaApi.cs#L9-L13
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// Note, IsIOS also returns true on MacCatalyst.
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var libSkiaSharpPath = OperatingSystemEx.IsIOS() || OperatingSystemEx.IsTvOS() ? |
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"@rpath/libSkiaSharp.framework/libSkiaSharp" : |
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"libSkiaSharp"; |
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var dll = NativeLibraryEx.Load(libSkiaSharpPath, typeof(SKPaint).Assembly); |
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IntPtr address; |
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if (NativeLibraryEx.TryGetExport(dll, "gr_direct_context_make_metal_with_options", out address)) |
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{ |
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_gr_direct_context_make_metal_with_options = |
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(delegate* unmanaged[Stdcall] <IntPtr, IntPtr, IntPtr, IntPtr>)address; |
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} |
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else |
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{ |
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throw new InvalidOperationException( |
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"Unable to export gr_direct_context_make_metal_with_options. Make sure SkiaSharp is up to date."); |
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} |
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if(NativeLibraryEx.TryGetExport(dll, "gr_backendrendertarget_new_metal", out address)) |
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{ |
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_gr_backendrendertarget_new_metal = |
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(delegate* unmanaged[Stdcall]<int, int, int, GRMtlTextureInfoNative*, IntPtr>)address; |
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} |
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else |
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{ |
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throw new InvalidOperationException( |
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"Unable to export gr_backendrendertarget_new_metal. Make sure SkiaSharp is up to date."); |
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} |
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_contextCtor = typeof(GRContext).GetConstructor( |
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BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic, null, |
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new[] { typeof(IntPtr), typeof(bool) }, null) ?? throw new MissingMemberException("GRContext.ctor(IntPtr,bool)"); |
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_renderTargetCtor = typeof(GRBackendRenderTarget).GetConstructor( |
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BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic, null, |
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new[] { typeof(IntPtr), typeof(bool) }, null) ?? throw new MissingMemberException("GRContext.ctor(IntPtr,bool)"); |
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_contextOptionsToNative = typeof(GRContextOptions).GetMethod("ToNative", |
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BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic) |
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?? throw new MissingMemberException("GRContextOptions.ToNative()"); |
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} |
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[UnconditionalSuppressMessage("Trimming", "IL3050", Justification = "We have DynamicDependency above.")] |
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public GRContext CreateContext(IntPtr device, IntPtr queue, GRContextOptions? options) |
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{ |
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options ??= new(); |
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var nativeOptions = _contextOptionsToNative.Invoke(options, null)!; |
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var gcHandle = GCHandle.Alloc(nativeOptions, GCHandleType.Pinned); |
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try |
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{ |
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var context = _gr_direct_context_make_metal_with_options(device, queue, gcHandle.AddrOfPinnedObject()); |
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if (context == IntPtr.Zero) |
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throw new InvalidOperationException("Unable to create GRContext from Metal device."); |
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return (GRContext)_contextCtor.Invoke(new object[] { context, true }); |
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} |
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finally |
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{ |
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gcHandle.Free(); |
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} |
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} |
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internal struct GRMtlTextureInfoNative |
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{ |
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public IntPtr Texture; |
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} |
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public GRBackendRenderTarget CreateBackendRenderTarget(int width, int height, int samples, IntPtr texture) |
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{ |
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var info = new GRMtlTextureInfoNative() { Texture = texture }; |
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var target = _gr_backendrendertarget_new_metal(width, height, samples, &info); |
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if (target == IntPtr.Zero) |
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throw new InvalidOperationException("Unable to create GRBackendRenderTarget"); |
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return (GRBackendRenderTarget)_renderTargetCtor.Invoke(new object[] { target, true }); |
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} |
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} |
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