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//
// Encoder.cs
//
// Author:
// Stefanos Apostolopoulos <stapostol@gmail.com>
// Jean-Philippe Bruyère <jp.bruyere@hotmail.com>
//
// Copyright (c) 2006-2014 Stefanos Apostolopoulos
// Copyright (c) 2013-2017 Jean-Philippe Bruyère
//
// 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 Linux.DRI
{
[StructLayout(LayoutKind.Sequential)]
public struct drmEncoder
{
public uint encoder_id;
public EncoderType encoder_type;
public uint crtc_id;
public uint possible_crtcs;
public uint possible_clones;
}
unsafe public class Encoder : IDisposable
{
#region pinvoke
[DllImport("libdrm", EntryPoint = "drmModeGetEncoder", CallingConvention = CallingConvention.Cdecl)]
internal static extern drmEncoder* ModeGetEncoder(int fd, uint encoder_id);
[DllImport("libdrm", EntryPoint = "drmModeFreeEncoder", CallingConvention = CallingConvention.Cdecl)]
internal static extern void ModeFreeEncoder(drmEncoder* ptr);
#endregion
int fd_gpu;
internal drmEncoder* handle;
#region ctor
unsafe internal Encoder (int _fd_gpu, uint _id)
{
fd_gpu = _fd_gpu;
handle = ModeGetEncoder (fd_gpu, _id);
if (handle == null)
throw new NotSupportedException("[DRI] drmModeGetEncoder failed.");
}
#endregion
public uint Id { get { return handle->encoder_id; }}
public EncoderType Type { get { return handle->encoder_type; }}
public uint PossibleCrtcs { get { return handle->possible_crtcs; }}
public uint PossibleClones { get { return handle->possible_clones; }}
public Crtc CurrentCrtc {
get {
return handle->crtc_id == 0 ? null : new Crtc (fd_gpu, handle->crtc_id);
}
}
#region IDisposable implementation
~Encoder(){
Dispose (false);
}
public void Dispose ()
{
Dispose (true);
GC.SuppressFinalize (this);
}
protected virtual void Dispose (bool disposing){
unsafe {
if (handle != null)
ModeFreeEncoder (handle);
handle = null;
}
}
#endregion
public override string ToString ()
{
return string.Format ("[Encoder: Id={0}, Type={1}, PossibleCrtcs={2}, PossibleClones={3}]", Id, Type, PossibleCrtcs, PossibleClones);
}
}
}
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