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DataObjectFormat.cs
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134 lines (119 loc) · 5.05 KB
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// Copyright (c) 2010-2014 SharpDX - Alexandre Mutel
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
using System;
using System.Runtime.InteropServices;
namespace SharpDX.DirectInput
{
public partial class DataObjectFormat
{
public DataObjectFormat()
{
}
public DataObjectFormat(Guid guid, int offset, DeviceObjectTypeFlags typeFlags, ObjectDataFormatFlags flags) : this(guid, offset, typeFlags, flags, 0)
{
}
public DataObjectFormat(Guid guid, int offset, DeviceObjectTypeFlags typeFlags, ObjectDataFormatFlags flags, int instanceNumber)
{
Guid = guid;
Offset = offset;
TypeFlags = typeFlags;
InstanceNumber = instanceNumber;
Flags = flags;
}
/// <summary>
/// Name of this DataObjectFormat. Default is using field name.
/// </summary>
public string Name { get; set; }
/// <summary>
/// Gets or sets Guid for the axis, button, or other input source. When requesting a data format, making this member empty indicates that any type of object is permissible.
/// </summary>
/// <value>The GUID.</value>
public Guid Guid { get; set; }
/// <summary>
/// Gets or sets the field offset. This is used internally.
/// </summary>
/// <value>The offset.</value>
public int Offset { get; set; }
/// <summary>
/// Gets or sets the device type that describes the object.
/// </summary>
/// <value>The type.</value>
public DeviceObjectTypeFlags TypeFlags { get; set; }
/// <summary>
/// Gets or sets the instance number. Setting -1 is applied to any object instance.
/// </summary>
/// <value>The instance number.</value>
public int InstanceNumber { get; set; }
/// <summary>
/// Gets or sets the extra flags used to describe the data format.
/// </summary>
/// <value>The flags.</value>
public ObjectDataFormatFlags Flags { get; set; }
// Internal native struct used for marshalling
[StructLayout(LayoutKind.Sequential, Pack = 0)]
internal partial struct __Native
{
public System.IntPtr GuidPointer;
public int Offset;
public int Type;
public SharpDX.DirectInput.ObjectDataFormatFlags Flags;
// Method to free unmanaged allocation
internal unsafe void __MarshalFree()
{
//if (GuidPointer != IntPtr.Zero)
//{
// var handle = GCHandle.FromIntPtr(GuidPointer);
// handle.Free();
//}
}
}
// Method to free unmanaged allocation
internal unsafe void __MarshalFree(ref __Native @ref)
{
@ref.__MarshalFree();
}
// Method to marshal from native to managed struct
internal unsafe void __MarshalFrom(ref __Native @ref)
{
this.Offset = @ref.Offset;
this.TypeFlags = (DeviceObjectTypeFlags )@ref.Type;
if ((TypeFlags & DeviceObjectTypeFlags.AnyInstance) != DeviceObjectTypeFlags.AnyInstance)
{
TypeFlags = (DeviceObjectTypeFlags)(@ref.Type & 0xFF0000FF);
InstanceNumber = (@ref.Type >> 8) & 0xFFFF;
}
this.Flags = @ref.Flags;
}
// Method to marshal from managed struct tot native
internal unsafe void __MarshalTo(ref __Native @ref)
{
@ref.Offset = this.Offset;
@ref.Type = ((int)this.TypeFlags) | (((this.TypeFlags & DeviceObjectTypeFlags.AnyInstance) == DeviceObjectTypeFlags.AnyInstance?0:InstanceNumber)<<8) ;
@ref.Flags = this.Flags;
if (Guid == Guid.Empty)
@ref.GuidPointer = IntPtr.Zero;
else
{
var handle = GCHandle.Alloc(Guid, GCHandleType.Pinned);
@ref.GuidPointer = handle.AddrOfPinnedObject();
}
}
}
}