114 lines
4.2 KiB
C#
114 lines
4.2 KiB
C#
// 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.DirectInput
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{
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internal partial class DataFormat
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{
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public DataFormat(DataFormatFlag flags)
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{
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Size = Utilities.SizeOf<__Native>();
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ObjectSize = Utilities.SizeOf<DataObjectFormat.__Native>();
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Flags = flags;
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}
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public DataFormat()
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{
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unsafe
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{
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Size = sizeof(__Native);
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ObjectSize = sizeof(DataObjectFormat.__Native);
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}
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}
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internal static __Native __NewNative()
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{
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unsafe
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{
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__Native temp = default(__Native);
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temp.Size = sizeof(__Native);
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temp.ObjectSize = sizeof(DataObjectFormat.__Native);
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return temp;
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}
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}
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public DataObjectFormat[] ObjectsFormat { get; set; }
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// Internal native struct used for marshalling
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[StructLayout(LayoutKind.Sequential, Pack = 0)]
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internal partial struct __Native
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{
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public int Size;
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public int ObjectSize;
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public SharpDX.DirectInput.DataFormatFlag Flags;
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public int DataSize;
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public int ObjectArrayCount;
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public System.IntPtr ObjectArrayPointer;
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// Method to free unmanaged allocation
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internal unsafe void __MarshalFree()
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{
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//if (ObjectArrayPointer != IntPtr.Zero)
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// GCHandle.FromIntPtr(ObjectArrayPointer).Free();
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}
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}
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// Method to free unmanaged allocation
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internal unsafe void __MarshalFree(ref __Native @ref)
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{
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@ref.__MarshalFree();
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}
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// Method to marshal from native to managed struct
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internal unsafe void __MarshalFrom(ref __Native @ref)
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{
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this.Size = @ref.Size;
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this.ObjectSize = @ref.ObjectSize;
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this.Flags = @ref.Flags;
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this.DataSize = @ref.DataSize;
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this.ObjectArrayCount = @ref.ObjectArrayCount;
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this.ObjectArrayPointer = @ref.ObjectArrayPointer;
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}
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// Method to marshal from managed struct tot native
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internal unsafe void __MarshalTo(ref __Native @ref)
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{
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@ref.Size = this.Size;
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@ref.ObjectSize = this.ObjectSize;
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@ref.Flags = this.Flags;
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@ref.DataSize = this.DataSize;
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@ref.ObjectArrayCount = 0;
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@ref.ObjectArrayPointer = IntPtr.Zero;
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if (ObjectsFormat != null && ObjectsFormat.Length > 0)
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{
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@ref.ObjectArrayCount = ObjectsFormat.Length;
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var nativeDataFormats = new DataObjectFormat.__Native[ObjectsFormat.Length];
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for(int i = 0; i < ObjectsFormat.Length; i++ )
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ObjectsFormat[i].__MarshalTo(ref nativeDataFormats[i]);
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var handle = GCHandle.Alloc(nativeDataFormats, GCHandleType.Pinned);
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@ref.ObjectArrayPointer = handle.AddrOfPinnedObject();
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}
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}
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}
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} |