/// <summary>
/// Creates device with necessary flags for video processing
/// </summary>
/// <param name="manager">DXGI Manager, used to create media engine</param>
/// <returns>Device with video support</returns>
internal static DXDevice CreateDeviceForVideo(out DXGIDeviceManager manager)
{
//Device need bgra and video support
var device = new DXDevice(SharpDX.Direct3D.DriverType.Hardware, DeviceCreationFlags.BgraSupport | DeviceCreationFlags.VideoSupport);
//Add multi thread protection on device
DeviceMultithread mt = device.QueryInterface <DeviceMultithread>();
mt.SetMultithreadProtected(true);
//Reset device
manager = new DXGIDeviceManager();
manager.ResetDevice(device);
return(device);
}
public void Initialize(SharpDXContext context)
{
lock (this.lockObject)
{
this.sharpDxContext = context;
MediaManager.Startup(false);
this.multithread = this.sharpDxContext.D3DContext.QueryInterface <DeviceMultithread>();
this.multithread.SetMultithreadProtected((Bool)true);
this.dxgiDeviceManager = new DXGIDeviceManager();
this.dxgiDeviceManager.ResetDevice((ComObject)this.sharpDxContext.D3DDevice);
this.attributes = new MediaEngineAttributes(0)
{
DxgiManager = this.dxgiDeviceManager,
VideoOutputFormat = 87
};
using (MediaEngineClassFactory resource_0 = new MediaEngineClassFactory())
this.mediaEngine = new MediaEngine(resource_0, this.attributes, MediaEngineCreateFlags.None, new MediaEngineNotifyDelegate(this.OnMediaEngineEvent));
this.mediaEngineEx = this.mediaEngine.QueryInterface <MediaEngineEx>();
this.mediaEngine.Loop = (Bool)true;
this.mediaEngine.AutoPlay = (Bool)true;
}
}
/// <inheritdoc />
protected override void OnInitialize(IServiceRegistry registry)
{
_graphicsDevice = registry.GetService <IGraphicsDevice>();
_spriteBatch = ToDispose(new SpriteBatch(_graphicsDevice));
MediaManager.Startup();
DeviceMultithread multithread = _graphicsDevice.Device.QueryInterface <DeviceMultithread>();
multithread.SetMultithreadProtected(true);
_dxgiDeviceManager = ToDispose(new DXGIDeviceManager());
_dxgiDeviceManager.ResetDevice(_graphicsDevice.Device);
MediaEngineAttributes attributes = new MediaEngineAttributes
{
DxgiManager = _dxgiDeviceManager, VideoOutputFormat = (int)Format.B8G8R8A8_UNorm
};
using (MediaEngineClassFactory factory = new MediaEngineClassFactory())
{
_mediaEngine = ToDispose(
new MediaEngine(
factory, attributes, MediaEngineCreateFlags.WaitForStableState, OnMediaEngineEvent));
}
_mediaEngineEx = ToDispose(_mediaEngine.QueryInterface <MediaEngineEx>());
}
/// <summary>
/// Configures the Direct3D device, and stores handles to it and the device context.
/// </summary>
private void CreateDeviceResources()
{
DisposeDeviceAndContext();
// This flag adds support for surfaces with a different color channel ordering
// than the API default. It is required for compatibility with Direct2D.
DeviceCreationFlags creationFlags = DeviceCreationFlags.BgraSupport;
creationFlags |= DeviceCreationFlags.VideoSupport;
#if DEBUG
if (DirectXHelper.SdkLayersAvailable())
{
// If the project is in a debug build, enable debugging via SDK Layers with this flag.
creationFlags |= DeviceCreationFlags.Debug;
}
#endif
// This array defines the set of DirectX hardware feature levels this app will support.
// Note the ordering should be preserved.
// Note that HoloLens supports feature level 11.1. The HoloLens emulator is also capable
// of running on graphics cards starting with feature level 10.0.
FeatureLevel[] featureLevels =
{
FeatureLevel.Level_12_1,
FeatureLevel.Level_12_0,
FeatureLevel.Level_11_1,
FeatureLevel.Level_11_0,
FeatureLevel.Level_10_1,
FeatureLevel.Level_10_0
};
RasterizerStateDescription rasterDesc = new RasterizerStateDescription()
{
FillMode = FillMode.Solid,
CullMode = CullMode.Back,
IsFrontCounterClockwise = false,
DepthBias = 0,
SlopeScaledDepthBias = 0,
DepthBiasClamp = 0,
IsDepthClipEnabled = true,
IsScissorEnabled = false,
IsMultisampleEnabled = true,
IsAntialiasedLineEnabled = true
};
// Create the Direct3D 11 API device object and a corresponding context.
try
{
if (null != dxgiAdapter)
{
using (var device = new Device(dxgiAdapter, creationFlags, featureLevels))
{
// Store pointers to the Direct3D 11.1 API device.
d3dDevice = this.ToDispose(device.QueryInterface <Device3>());
}
}
else
{
using (var device = new Device(DriverType.Hardware, creationFlags, featureLevels))
{
// Store a pointer to the Direct3D device.
d3dDevice = this.ToDispose(device.QueryInterface <Device3>());
}
}
}
catch
{
// If the initialization fails, fall back to the WARP device.
// For more information on WARP, see:
// http://go.microsoft.com/fwlink/?LinkId=286690
using (var device = new Device(DriverType.Warp, creationFlags, featureLevels))
{
d3dDevice = this.ToDispose(device.QueryInterface <Device3>());
}
}
// Cache the feature level of the device that was created.
d3dFeatureLevel = d3dDevice.FeatureLevel;
// Store a pointer to the Direct3D immediate context.
d3dContext = this.ToDispose(d3dDevice.ImmediateContext3);
// Acquire the DXGI interface for the Direct3D device.
using (var dxgiDevice = d3dDevice.QueryInterface <SharpDX.DXGI.Device3>())
{
// Wrap the native device using a WinRT interop object.
IntPtr pUnknown;
UInt32 hr = InteropStatics.CreateDirect3D11DeviceFromDXGIDevice(dxgiDevice.NativePointer, out pUnknown);
if (hr == 0)
{
d3dInteropDevice = (IDirect3DDevice)Marshal.GetObjectForIUnknown(pUnknown);
Marshal.Release(pUnknown);
}
// Store a pointer to the DXGI adapter.
// This is for the case of no preferred DXGI adapter, or fallback to WARP.
dxgiAdapter = this.ToDispose(dxgiDevice.Adapter.QueryInterface <SharpDX.DXGI.Adapter3>());
}
// Check for device support for the optional feature that allows setting the render target array index from the vertex shader stage.
var options = d3dDevice.CheckD3D113Features3();
if (options.VPAndRTArrayIndexFromAnyShaderFeedingRasterizer)
{
d3dDeviceSupportsVprt = true;
}
RasterizerState rsState = new RasterizerState(d3dDevice, rasterDesc);
d3dContext.Rasterizer.State = rsState;
// Need to multithread for video Playback MF threads
DeviceMultithread mt = d3dDevice.QueryInterface <SharpDX.Direct3D.DeviceMultithread>();
mt.SetMultithreadProtected(true);
}
