Compile Skia with Direct3D on Windows platform

binding/SkiaSharp/GRBackendRenderTarget.cs

@@ -24,6 +24,12 @@ public GRBackendRenderTarget (int width, int height, int sampleCount, GRVkImageI
 			CreateVulkan (width, height, sampleCount, vkImageInfo);
 		}
 
+		public GRBackendRenderTarget (int width, int height, GRD3DTextureResourceInfo d3dTextureInfo)
+			: this (IntPtr.Zero, true)
+		{
+			CreateDirect3D (width, height, d3dTextureInfo);
+		}
+
 #if __IOS__ || __MACOS__
 
 		public GRBackendRenderTarget (int width, int height, int sampleCount, GRMtlTextureInfo mtlInfo)
@@ -57,6 +63,16 @@ private void CreateVulkan (int width, int height, int sampleCount, GRVkImageInfo
 			}
 		}
 
+		private void CreateDirect3D (int width, int height, GRD3DTextureResourceInfo d3dTextureInfo)
+		{
+			var native = d3dTextureInfo.ToNative ();
+			Handle = SkiaApi.gr_backendrendertarget_new_direct3d (width, height, &native);
+
+			if (Handle == IntPtr.Zero) {
+				throw new InvalidOperationException ("Unable to create a new GRBackendRenderTarget instance.");
+			}
+		}
+
 		protected override void Dispose (bool disposing) =>
 			base.Dispose (disposing);
 

binding/SkiaSharp/GRBackendTexture.cs

@@ -25,6 +25,12 @@ public GRBackendTexture (int width, int height, GRVkImageInfo vkInfo)
 			CreateVulkan (width, height, vkInfo);
 		}
 
+		public GRBackendTexture (int width, int height, GRD3DTextureResourceInfo d3dTextureInfo)
+			: this (IntPtr.Zero, true)
+		{
+			CreateDirect3D (width, height, d3dTextureInfo);
+		}
+
 		public GRBackendTexture (int width, int height, bool mipmapped, GRMtlTextureInfo mtlInfo)
 			: this (IntPtr.Zero, true)
 		{
@@ -54,6 +60,16 @@ private void CreateVulkan (int width, int height, GRVkImageInfo vkInfo)
 			}
 		}
 
+		private void CreateDirect3D (int width, int height, GRD3DTextureResourceInfo d3dTextureInfo)
+		{
+			var native = d3dTextureInfo.ToNative ();
+			Handle = SkiaApi.gr_backendtexture_new_direct3d (width, height, &native);
+
+			if (Handle == IntPtr.Zero) {
+				throw new InvalidOperationException ("Unable to create a new GRBackendTexture instance.");
+			}
+		}
+
 		protected override void Dispose (bool disposing) =>
 			base.Dispose (disposing);
 

binding/SkiaSharp/GRContext.cs

@@ -63,6 +63,21 @@ public static GRContext CreateVulkan (GRVkBackendContext backendContext, GRConte
 			}
 		}
 
+		public static GRContext CreateDirect3D (GRD3DBackendContext backendContext) =>
+			CreateDirect3D (backendContext, null);
+
+		public static GRContext CreateDirect3D (GRD3DBackendContext backendContext, GRContextOptions options)
+		{
+			if (backendContext == null)
+				throw new ArgumentNullException (nameof (backendContext));
+			if (options == null) {
+				return GetObject (SkiaApi.gr_direct_context_make_direct3d (backendContext.ToNative ()));
+			} else {
+				var opts = options.ToNative ();
+				return GetObject (SkiaApi.gr_direct_context_make_direct3d_with_options (backendContext.ToNative (), &opts));
+			}
+		}
+
 		// CreateMetal
 
 		public static GRContext CreateMetal (GRMtlBackendContext backendContext) =>

binding/SkiaSharp/GRD3DBackendContext.cs

@@ -0,0 +1,24 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace SkiaSharp
+{
+	public class GRD3DBackendContext
+	{
+		public nint Adapter { get; set; }
+		public nint Device { get; set; }
+		public nint Queue { get; set; }
+		public bool ProtectedContext { get; set; }
+
+		internal GrD3DBackendContextNative ToNative ()
+		{
+			return new GrD3DBackendContextNative {
+				fAdapter = Adapter,
+				fDevice = Device,
+				fQueue = Queue,
+				fProtectedContext = ProtectedContext ? (byte)1 : (byte)0
+			};
+		}
+	}
+}

binding/SkiaSharp/GRD3DTextureResourceInfo.cs

@@ -0,0 +1,30 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace SkiaSharp
+{
+	public class GRD3DTextureResourceInfo
+	{
+		public nint Resource { get; set; }
+		public uint ResourceState { get; set; }
+		public uint Format { get; set; }
+		public uint SampleCount { get; set; }
+		public uint LevelCount { get; set; }
+		public uint SampleQualityPattern { get; set; }
+		public bool Protected { get; set; }
+
+		internal GrD3DTextureResourceInfoNative ToNative ()
+		{
+			return new GrD3DTextureResourceInfoNative {
+				fResource = Resource,
+				fResourceState = ResourceState,
+				fFormat = Format,
+				fSampleCount = SampleCount,
+				fLevelCount = LevelCount,
+				fSampleQualityPattern = SampleQualityPattern,
+				fProtected = Protected ? (byte)1 : (byte)0
+			};
+		}
+	}
+}

binding/SkiaSharp/SkiaApi.generated.cs

@@ -1,4 +1,4 @@
-using System;
+using System;
 using System.Runtime.InteropServices;
 using System.Runtime.CompilerServices;
 
@@ -9,8 +9,14 @@
 
 #region Class declarations
 
+using d3d_alloc_t = System.IntPtr;
+using d3d_d12_command_queue_t = System.IntPtr;
+using d3d_d12_device_t = System.IntPtr;
+using d3d_d12_resource_t = System.IntPtr;
+using d3d_dxgi_adapter_t = System.IntPtr;
 using gr_backendrendertarget_t = System.IntPtr;
 using gr_backendtexture_t = System.IntPtr;
+using gr_d3d_memory_allocator_t = System.IntPtr;
 using gr_direct_context_t = System.IntPtr;
 using gr_glinterface_t = System.IntPtr;
 using gr_recording_context_t = System.IntPtr;
@@ -268,6 +274,20 @@ internal static bool gr_backendrendertarget_is_valid (gr_backendrendertarget_t r
 			(gr_backendrendertarget_is_valid_delegate ??= GetSymbol<Delegates.gr_backendrendertarget_is_valid> ("gr_backendrendertarget_is_valid")).Invoke (rendertarget);
 		#endif
 
+		// gr_backendrendertarget_t* gr_backendrendertarget_new_direct3d(int width, int height, const gr_d3d_textureresourceinfo_t* d3dInfo)
+		#if !USE_DELEGATES
+		[DllImport (SKIA, CallingConvention = CallingConvention.Cdecl)]
+		internal static extern gr_backendrendertarget_t gr_backendrendertarget_new_direct3d (Int32 width, Int32 height, GrD3DTextureResourceInfoNative* d3dInfo);
+		#else
+		private partial class Delegates {
+			[UnmanagedFunctionPointer (CallingConvention.Cdecl)]
+			internal delegate gr_backendrendertarget_t gr_backendrendertarget_new_direct3d (Int32 width, Int32 height, GrD3DTextureResourceInfoNative* d3dInfo);
+		}
+		private static Delegates.gr_backendrendertarget_new_direct3d gr_backendrendertarget_new_direct3d_delegate;
+		internal static gr_backendrendertarget_t gr_backendrendertarget_new_direct3d (Int32 width, Int32 height, GrD3DTextureResourceInfoNative* d3dInfo) =>
+			(gr_backendrendertarget_new_direct3d_delegate ??= GetSymbol<Delegates.gr_backendrendertarget_new_direct3d> ("gr_backendrendertarget_new_direct3d")).Invoke (width, height, d3dInfo);
+		#endif
+
 		// gr_backendrendertarget_t* gr_backendrendertarget_new_gl(int width, int height, int samples, int stencils, const gr_gl_framebufferinfo_t* glInfo)
 		#if !USE_DELEGATES
 		#if USE_LIBRARY_IMPORT
@@ -467,6 +487,20 @@ internal static bool gr_backendtexture_is_valid (gr_backendtexture_t texture) =>
 			(gr_backendtexture_is_valid_delegate ??= GetSymbol<Delegates.gr_backendtexture_is_valid> ("gr_backendtexture_is_valid")).Invoke (texture);
 		#endif
 
+		// gr_backendtexture_t* gr_backendtexture_new_direct3d(int width, int height, const gr_d3d_textureresourceinfo_t* d3dInfo)
+		#if !USE_DELEGATES
+		[DllImport (SKIA, CallingConvention = CallingConvention.Cdecl)]
+		internal static extern gr_backendtexture_t gr_backendtexture_new_direct3d (Int32 width, Int32 height, GrD3DTextureResourceInfoNative* d3dInfo);
+		#else
+		private partial class Delegates {
+			[UnmanagedFunctionPointer (CallingConvention.Cdecl)]
+			internal delegate gr_backendtexture_t gr_backendtexture_new_direct3d (Int32 width, Int32 height, GrD3DTextureResourceInfoNative* d3dInfo);
+		}
+		private static Delegates.gr_backendtexture_new_direct3d gr_backendtexture_new_direct3d_delegate;
+		internal static gr_backendtexture_t gr_backendtexture_new_direct3d (Int32 width, Int32 height, GrD3DTextureResourceInfoNative* d3dInfo) =>
+			(gr_backendtexture_new_direct3d_delegate ??= GetSymbol<Delegates.gr_backendtexture_new_direct3d> ("gr_backendtexture_new_direct3d")).Invoke (width, height, d3dInfo);
+		#endif
+
 		// gr_backendtexture_t* gr_backendtexture_new_gl(int width, int height, bool mipmapped, const gr_gl_textureinfo_t* glInfo)
 		#if !USE_DELEGATES
 		#if USE_LIBRARY_IMPORT
@@ -717,6 +751,34 @@ internal static bool gr_direct_context_is_abandoned (gr_direct_context_t context
 			(gr_direct_context_is_abandoned_delegate ??= GetSymbol<Delegates.gr_direct_context_is_abandoned> ("gr_direct_context_is_abandoned")).Invoke (context);
 		#endif
 
+		// gr_direct_context_t* gr_direct_context_make_direct3d(const gr_d3d_backendcontext_t d3dBackendContext)
+		#if !USE_DELEGATES
+		[DllImport (SKIA, CallingConvention = CallingConvention.Cdecl)]
+		internal static extern gr_direct_context_t gr_direct_context_make_direct3d (GrD3DBackendContextNative d3dBackendContext);
+		#else
+		private partial class Delegates {
+			[UnmanagedFunctionPointer (CallingConvention.Cdecl)]
+			internal delegate gr_direct_context_t gr_direct_context_make_direct3d (GrD3DBackendContextNative d3dBackendContext);
+		}
+		private static Delegates.gr_direct_context_make_direct3d gr_direct_context_make_direct3d_delegate;
+		internal static gr_direct_context_t gr_direct_context_make_direct3d (GrD3DBackendContextNative d3dBackendContext) =>
+			(gr_direct_context_make_direct3d_delegate ??= GetSymbol<Delegates.gr_direct_context_make_direct3d> ("gr_direct_context_make_direct3d")).Invoke (d3dBackendContext);
+		#endif
+
+		// gr_direct_context_t* gr_direct_context_make_direct3d_with_options(const gr_d3d_backendcontext_t d3dBackendContext, const gr_context_options_t* options)
+		#if !USE_DELEGATES
+		[DllImport (SKIA, CallingConvention = CallingConvention.Cdecl)]
+		internal static extern gr_direct_context_t gr_direct_context_make_direct3d_with_options (GrD3DBackendContextNative d3dBackendContext, GRContextOptionsNative* options);
+		#else
+		private partial class Delegates {
+			[UnmanagedFunctionPointer (CallingConvention.Cdecl)]
+			internal delegate gr_direct_context_t gr_direct_context_make_direct3d_with_options (GrD3DBackendContextNative d3dBackendContext, GRContextOptionsNative* options);
+		}
+		private static Delegates.gr_direct_context_make_direct3d_with_options gr_direct_context_make_direct3d_with_options_delegate;
+		internal static gr_direct_context_t gr_direct_context_make_direct3d_with_options (GrD3DBackendContextNative d3dBackendContext, GRContextOptionsNative* options) =>
+			(gr_direct_context_make_direct3d_with_options_delegate ??= GetSymbol<Delegates.gr_direct_context_make_direct3d_with_options> ("gr_direct_context_make_direct3d_with_options")).Invoke (d3dBackendContext, options);
+		#endif
+
 		// gr_direct_context_t* gr_direct_context_make_gl(const gr_glinterface_t* glInterface)
 		#if !USE_DELEGATES
 		#if USE_LIBRARY_IMPORT
@@ -17409,6 +17471,104 @@ public readonly override int GetHashCode ()
 
 	}
 
+	// gr_d3d_backendcontext_t
+	[StructLayout (LayoutKind.Sequential)]
+	internal unsafe partial struct GrD3DBackendContextNative : IEquatable<GrD3DBackendContextNative> {
+		// public d3d_dxgi_adapter_t* fAdapter
+		public d3d_dxgi_adapter_t fAdapter;
+
+		// public d3d_d12_device_t* fDevice
+		public d3d_d12_device_t fDevice;
+
+		// public d3d_d12_command_queue_t* fQueue
+		public d3d_d12_command_queue_t fQueue;
+
+		// public gr_d3d_memory_allocator_t* fMemoryAllocator
+		public gr_d3d_memory_allocator_t fMemoryAllocator;
+
+		// public bool fProtectedContext
+		public Byte fProtectedContext;
+
+		public readonly bool Equals (GrD3DBackendContextNative obj) =>
+			fAdapter == obj.fAdapter && fDevice == obj.fDevice && fQueue == obj.fQueue && fMemoryAllocator == obj.fMemoryAllocator && fProtectedContext == obj.fProtectedContext;
+
+		public readonly override bool Equals (object obj) =>
+			obj is GrD3DBackendContextNative f && Equals (f);
+
+		public static bool operator == (GrD3DBackendContextNative left, GrD3DBackendContextNative right) =>
+			left.Equals (right);
+
+		public static bool operator != (GrD3DBackendContextNative left, GrD3DBackendContextNative right) =>
+			!left.Equals (right);
+
+		public readonly override int GetHashCode ()
+		{
+			var hash = new HashCode ();
+			hash.Add (fAdapter);
+			hash.Add (fDevice);
+			hash.Add (fQueue);
+			hash.Add (fMemoryAllocator);
+			hash.Add (fProtectedContext);
+			return hash.ToHashCode ();
+		}
+
+	}
+
+	// gr_d3d_textureresourceinfo_t
+	[StructLayout (LayoutKind.Sequential)]
+	internal unsafe partial struct GrD3DTextureResourceInfoNative : IEquatable<GrD3DTextureResourceInfoNative> {
+		// public d3d_d12_resource_t* fResource
+		public d3d_d12_resource_t fResource;
+
+		// public d3d_alloc_t* fAlloc
+		public d3d_alloc_t fAlloc;
+
+		// public uint32_t fResourceState
+		public UInt32 fResourceState;
+
+		// public uint32_t fFormat
+		public UInt32 fFormat;
+
+		// public uint32_t fSampleCount
+		public UInt32 fSampleCount;
+
+		// public uint32_t fLevelCount
+		public UInt32 fLevelCount;
+
+		// public unsigned int fSampleQualityPattern
+		public UInt32 fSampleQualityPattern;
+
+		// public bool fProtected
+		public Byte fProtected;
+
+		public readonly bool Equals (GrD3DTextureResourceInfoNative obj) =>
+			fResource == obj.fResource && fAlloc == obj.fAlloc && fResourceState == obj.fResourceState && fFormat == obj.fFormat && fSampleCount == obj.fSampleCount && fLevelCount == obj.fLevelCount && fSampleQualityPattern == obj.fSampleQualityPattern && fProtected == obj.fProtected;
+
+		public readonly override bool Equals (object obj) =>
+			obj is GrD3DTextureResourceInfoNative f && Equals (f);
+
+		public static bool operator == (GrD3DTextureResourceInfoNative left, GrD3DTextureResourceInfoNative right) =>
+			left.Equals (right);
+
+		public static bool operator != (GrD3DTextureResourceInfoNative left, GrD3DTextureResourceInfoNative right) =>
+			!left.Equals (right);
+
+		public readonly override int GetHashCode ()
+		{
+			var hash = new HashCode ();
+			hash.Add (fResource);
+			hash.Add (fAlloc);
+			hash.Add (fResourceState);
+			hash.Add (fFormat);
+			hash.Add (fSampleCount);
+			hash.Add (fLevelCount);
+			hash.Add (fSampleQualityPattern);
+			hash.Add (fProtected);
+			return hash.ToHashCode ();
+		}
+
+	}
+
 	// gr_gl_framebufferinfo_t
 	[StructLayout (LayoutKind.Sequential)]
 	public unsafe partial struct GRGlFramebufferInfo : IEquatable<GRGlFramebufferInfo> {

native/windows/build.cake

@@ -52,6 +52,7 @@ Task("libSkiaSharp")
             $"skia_use_system_zlib=false " +
             $"skia_enable_skottie=true " +
             $"skia_use_vulkan={SUPPORT_VULKAN} ".ToLower () +
+            $"skia_use_direct3d=true " +
             clang +
             win_vcvars_version +
             $"extra_cflags=[ '-DSKIA_C_DLL', '/MT{d}', '/EHsc', '/Z7', '-D_HAS_AUTO_PTR_ETC=1' ] " +

source/SkiaSharp.Direct3D/SkiaSharp.Direct3D.Vortice/GRDirect3DBackendContext.cs

@@ -0,0 +1,22 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using Vortice.Direct3D12;
+using Vortice.DXGI;
+
+namespace SkiaSharp
+{
+	public class GRDirect3DBackendContext : GRD3DBackendContext
+	{
+		private IDXGIAdapter1 _adapter;
+		public new IDXGIAdapter1 Adapter { get => _adapter; set { _adapter = value; base.Adapter = value?.NativePointer ?? default; } }
+
+		private ID3D12Device2 _device;
+		public new ID3D12Device2 Device { get => _device; set { _device = value; base.Device = value?.NativePointer ?? default; } }
+
+		private ID3D12CommandQueue _queue;
+		public new ID3D12CommandQueue Queue { get => _queue; set { _queue = value; base.Queue = value?.NativePointer ?? default; } }
+	}
+}

source/SkiaSharp.Direct3D/SkiaSharp.Direct3D.Vortice/GRDirect3DTextureInfo.cs

@@ -0,0 +1,19 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using Vortice.Direct3D12;
+using Vortice.DXGI;
+
+namespace SkiaSharp
+{
+	public class GRDirect3DTextureInfo : GRD3DTextureResourceInfo
+	{
+		private ID3D12Resource _resource;
+		public new ID3D12Resource Resource { get => _resource; set { _resource = value; base.Resource = value?.NativePointer ?? default; } }
+		public new ResourceStates ResourceState { get => (ResourceStates)base.ResourceState; set => base.ResourceState = (uint)value; }
+		public new Format Format { get => (Format)base.Format; set => base.Format = (uint)value; }
+
+	}
+}