/// <summary>
/// Queries a managed object for a particular COM interface support.
/// </summary>
///<typeparam name="T">The type of the COM interface to query</typeparam>
/// <param name="comObject">The managed COM object.</param>
///<returns>An instance of the queried interface</returns>
/// <msdn-id>ms682521</msdn-id>
/// <unmanaged>IUnknown::QueryInterface</unmanaged>
/// <unmanaged-short>IUnknown::QueryInterface</unmanaged-short>
public static T QueryInterface <T>(object comObject) where T : ComObject
{
using (var tempObject = new ComObject(Marshal.GetIUnknownForObject(comObject)))
{
return(tempObject.QueryInterface <T>());
}
}
private void InitRenderTarget(IntPtr surface)
{
IntPtr sharedHandle;
var c = new SharpDX.ComObject(surface);
var D3DImageResource = c.QueryInterface <SharpDX.DXGI.Resource>();
sharedHandle = D3DImageResource.SharedHandle;
var tempResource = D3DDevice.OpenSharedResource <SharpDX.Direct3D11.Resource>(sharedHandle);
var d3DImageTexture = tempResource.QueryInterface <Texture2D>();
RenderTarget = new RenderTargetView(D3DDevice, d3DImageTexture);
var vp = new ViewportF {
Width = (float)host.ActualWidth,
Height = (float)host.ActualHeight,
MinDepth = 0.0f,
MaxDepth = 1.0f
};
D3DContext.Rasterizer.SetViewport(vp);
D3DContext.OutputMerger.SetRenderTargets(RenderTarget);
////Cleanup
tempResource.Dispose();
d3DImageTexture.Dispose();
}
/// <summary>
/// Queries a managed object for a particular COM interface support (This method is a shortcut to <see cref="QueryInterface"/>)
/// </summary>
///<typeparam name="T">The type of the COM interface to query</typeparam>
/// <param name="iunknownPtr">The managed COM object.</param>
///<returns>An instance of the queried interface</returns>
/// <msdn-id>ms682521</msdn-id>
/// <unmanaged>IUnknown::QueryInterface</unmanaged>
/// <unmanaged-short>IUnknown::QueryInterface</unmanaged-short>
public static T As <T>(IntPtr iunknownPtr) where T : ComObject
{
using (var tempObject = new ComObject(iunknownPtr))
{
return(tempObject.QueryInterface <T>());
}
}
/// <summary>
/// Opens the given video file and plays it directly.
/// </summary>
/// <param name="videoLink">The link to the video file.</param>
public async Task OpenAndShowVideoFileAsync(ResourceLink videoLink)
{
// Check for correct state
if (this.State != MediaPlayerState.NothingToDo)
{
throw new InvalidOperationException("Unable to open video file as long as there is another video playing!");
}
// Apply new state
this.State = MediaPlayerState.Opening;
try
{
// Create media session and a corresponding event listener obect for async events
MF.MediaFactory.CreateMediaSession(null, out m_mediaSession);
m_sessionEventHandler = MFSessionEventListener.AttachTo(m_mediaSession);
m_sessionEventHandler.EndOfPresentation += OnSessionEventHandlerEndOfPresentationReached;
// Create source object
MF.SourceResolver sourceResolver = new MF.SourceResolver();
MF.ObjectType objType = MF.ObjectType.Invalid;
m_videoSourceStreamNet = videoLink.OpenInputStream();
m_videoSourceStream = new MF.ByteStream(m_videoSourceStreamNet);
SharpDX.ComObject objSource = sourceResolver.CreateObjectFromStream(
m_videoSourceStream,
"Dummy." + videoLink.FileExtension,
MF.SourceResolverFlags.MediaSource,
out objType);
using (MF.MediaSource mediaSource = objSource.QueryInterface <MF.MediaSource>())
{
GraphicsHelper.SafeDispose(ref objSource);
GraphicsHelper.SafeDispose(ref sourceResolver);
await ShowVideoAsync(mediaSource);
}
// Video opened successfully
m_currentVideoLink = videoLink;
m_currentCaptureDevice = null;
this.State = MediaPlayerState.Playing;
}
catch (Exception)
{
// Unload all resources in case of an exception
DisposeResources();
throw;
}
}
public void InitRenderTargetSurface(IntPtr Resource)
{
ZBuffer?.Dispose();
DepthStencilViewRef?.Dispose();
RenderTargetViewRef?.Dispose();
RenderTarget2D?.Dispose();
SharpDX.DXGI.Resource dxgiResource;
using (var r = new SharpDX.ComObject(Resource)) {
dxgiResource = r.QueryInterface <SharpDX.DXGI.Resource>();
}
Texture2D OutputResource = DeviceRef.OpenSharedResource <Texture2D>(dxgiResource.SharedHandle);
using (var surface = DeviceRef.OpenSharedResource <Surface>(dxgiResource.SharedHandle)) {
RenderTarget2D = new RenderTarget(Factory2D, surface, RenderTarget2DProperites);
}
//Crash everything
//dxgiResource.Dispose();
RenderTarget2D.AntialiasMode = AntialiasMode.PerPrimitive;
RenderTarget2D.TextAntialiasMode = TextAntialiasMode.Cleartype;
RenderTargetViewRef = new RenderTargetView(DeviceRef, OutputResource);
Texture2DDescription OutputDesc = OutputResource.Description;
if (OutputDesc.Width != Width || OutputDesc.Height != Height)
{
Width = OutputDesc.Width;
Height = OutputDesc.Height;
SetUpViewport();
}
ZBufferTextureDescription.Width = Width;
ZBufferTextureDescription.Height = Height;
ZBuffer = new Texture2D(DeviceRef, ZBufferTextureDescription);
DepthStencilViewRef = new DepthStencilView(DeviceRef, ZBuffer, new DepthStencilViewDescription {
Format = Format.D32_Float,
Dimension = DepthStencilViewDimension.Texture2D,
Flags = DepthStencilViewFlags.None,
});
Context.OutputMerger.SetRenderTargets(DepthStencilViewRef, RenderTargetViewRef);
OnInitRenderTarget?.Invoke();
OutputResource?.Dispose();
}
private void CreateSwapChain(ref SwapChainDescription1 swapChainDescription1, Factory4 factory)
{
using (var sc1 = new SwapChain1(factory, commandQueue, ref swapChainDescription1))
{
swapChain = Collect(sc1.QueryInterface<SwapChain3>());
using (var comPtr = new ComObject(panel))
{
using (var native = comPtr.QueryInterface<ISwapChainPanelNative>())
{
native.SwapChain = swapChain;
}
}
}
}
public static T QueryInterface <T>(object comObject) where T : ComObject
{
using (ComObject comObject1 = new ComObject(Marshal.GetIUnknownForObject(comObject)))
return(comObject1.QueryInterface <T>());
}
public static T As <T>(IntPtr iunknownPtr) where T : ComObject
{
using (ComObject comObject = new ComObject(iunknownPtr))
return(comObject.QueryInterface <T>());
}