private bool init()
{
bool lresult = false;
do
{
// Free the old texture
if (this.surface != null)
{
this.surface.Dispose();
this.surface = null;
}
using (var device = CreateDevice(NativeMethods.GetDesktopWindow()))
{
surface = GetSharedSurface(device);
Lock();
this.SetBackBuffer(D3DResourceType.IDirect3DSurface9, this.surface.NativeInterface);
Unlock();
lresult = true;
}
} while (false);
return(lresult);
}
public VideoPanel()
{
var lTuple = D3D9Image.createD3D9Image();
if (lTuple != null)
{
this.imageSource = lTuple.Item1;
this.sharedResource = lTuple.Item2;
this.sharedHandle = sharedResource.SharedHandle;
}
if (this.imageSource != null)
{
var image = new System.Windows.Controls.Image();
image.Stretch = System.Windows.Media.Stretch.Uniform;
image.Source = this.imageSource;
this.AddChild(image);
// To greatly reduce flickering we're only going to AddDirtyRect
// when WPF is rendering.
System.Windows.Media.CompositionTarget.Rendering += this.CompositionTargetRendering;
}
}
private void OnLost()
{
OnUnload();
if (_renderTarget != null)
{
_renderTarget.Dispose();
_renderTarget = null;
}
if (_swapChain != null)
{
_swapChain.Dispose();
_swapChain = null;
}
}
private void OnAcquireCheck()
{
if (_device == null ||
_renderTarget != null ||
_swapChain != null)
{
return;
}
var d3dpp = (D3DPRESENT_PARAMETERS)_d3dpp;//.Clone();
_size = _window.Size;
d3dpp.hDeviceWindow = _window.Handle;
d3dpp.BackBufferWidth = _size.Width;
d3dpp.BackBufferHeight = _size.Height;
if (_size.Width <= 0 || _size.Height <= 0)
{
return;
}
var failed = false;
try
{
_swapChain = _device.CreateAdditionalSwapChain(ref d3dpp);
_renderTarget = _swapChain.GetBackBuffer(0, D3DBACKBUFFER_TYPE.D3DBACKBUFFER_TYPE_MONO);
//_renderTarget = _device.GetRenderTarget(0);
}
catch (Exception ex)
{
failed = true;
ErrorMessage = string.Format("{0}: {1}", ex.GetType().Name, ex.Message);
throw;
}
finally
{
if (failed)
{
OnLost();
}
}
}
/// <summary>
/// Assigns a <see cref="Microsoft.WindowsAPICodePack.DirectX.Direct3D10.Texture2D"/> as the source of the back buffer.
/// </summary>
/// <param name="texture">
/// The <c>Texture2D</c> to assign as the back buffer. Value can be null.
/// </param>
/// <exception cref="InvalidOperationException">
/// The D3D10Image has not been locked by a call to the
/// <see cref="D3DImage.Lock" /> or <see cref="D3DImage.TryLock" /> methods.
/// </exception>
public void SetBackBuffer(Texture2D texture)
{
// Free the old surface
if (this.surface != null)
{
this.surface.Dispose();
this.surface = null;
}
if (texture == null)
{
this.SetBackBuffer(D3DResourceType.IDirect3DSurface9, IntPtr.Zero);
}
else
{
using (var device = CreateDevice(NativeMethods.GetDesktopWindow()))
using (var texture9 = GetSharedSurface(device, texture))
{
this.surface = texture9.GetSurfaceLevel(0);
}
this.SetBackBuffer(D3DResourceType.IDirect3DSurface9, this.surface.NativeInterface);
}
}
