88 lines
3.6 KiB
C#
88 lines
3.6 KiB
C#
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// Copyright (c) 2010-2014 SharpDX - Alexandre Mutel
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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using System;
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using System.Runtime.InteropServices;
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namespace SharpDX.Direct2D1
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{
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/// <summary>
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/// Internal TessellationSink Callback
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/// </summary>
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internal class TessellationSinkShadow : SharpDX.ComObjectShadow
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{
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private static readonly TessellationSinkVtbl Vtbl = new TessellationSinkVtbl();
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/// <summary>
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/// Get a native callback pointer from a managed callback.
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/// </summary>
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/// <param name="tessellationSink">The geometry sink.</param>
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/// <returns>A pointer to the unmanaged geometry sink counterpart</returns>
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public static IntPtr ToIntPtr(TessellationSink tessellationSink)
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{
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return ToCallbackPtr<TessellationSink>(tessellationSink);
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}
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public class TessellationSinkVtbl : ComObjectVtbl
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{
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public TessellationSinkVtbl() : base(2)
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{
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AddMethod(new AddTrianglesDelegate(AddTrianglesImpl));
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AddMethod(new CloseDelegate(CloseImpl));
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}
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[UnmanagedFunctionPointer(CallingConvention.StdCall)]
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private delegate void AddTrianglesDelegate(IntPtr thisPtr, IntPtr triangles, int trianglesCount);
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private static void AddTrianglesImpl(IntPtr thisPtr, IntPtr triangles, int trianglesCount)
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{
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unsafe
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{
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var shadow = ToShadow<TessellationSinkShadow>(thisPtr);
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var callback = (TessellationSink) shadow.Callback;
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var managedTriangles = new Triangle[trianglesCount];
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Utilities.Read(triangles, managedTriangles, 0, trianglesCount);
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callback.AddTriangles(managedTriangles);
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}
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}
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[UnmanagedFunctionPointer(CallingConvention.StdCall)]
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private delegate int CloseDelegate(IntPtr thisPtr);
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private static int CloseImpl(IntPtr thisPtr)
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{
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try
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{
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var shadow = ToShadow<TessellationSinkShadow>(thisPtr);
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var callback = (TessellationSink)shadow.Callback;
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callback.Close();
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}
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catch (Exception exception)
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{
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return (int)SharpDX.Result.GetResultFromException(exception);
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}
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return Result.Ok.Code;
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}
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}
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protected override CppObjectVtbl GetVtbl
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{
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get { return Vtbl; }
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}
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}
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}
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