private void CreateTexture(int width, int height)
{
var description = new D3D10.Texture2DDescription();
description.ArraySize = 1;
description.BindingOptions = D3D10.BindingOptions.RenderTarget | D3D10.BindingOptions.ShaderResource;
description.CpuAccessOptions = D3D10.CpuAccessOptions.None;
description.Format = DirectX.Graphics.Format.B8G8R8A8UNorm;
description.MipLevels = 1;
description.MiscellaneousResourceOptions = D3D10.MiscellaneousResourceOptions.Shared;
description.SampleDescription = new DirectX.Graphics.SampleDescription(1, 0);
description.Usage = D3D10.Usage.Default;
description.Height = (uint)height;
description.Width = (uint)width;
// Assign result to temporary variable in case CreateTexture2D throws
var texture = this.device.CreateTexture2D(description);
if (this.texture != null)
{
this.texture.Dispose();
}
this.texture = texture;
}
/// <summary>
/// Releases the DirectX device and any device dependent resources.
/// </summary>
/// <remarks>
/// This method is safe to be called even if the instance has been disposed.
/// </remarks>
public void FreeResources()
{
this.OnFreeResources();
if (this.texture != null)
{
this.texture.Dispose();
this.texture = null;
}
if (this.renderTarget != null)
{
this.renderTarget.Dispose();
this.renderTarget = null;
}
if (this.device != null)
{
this.device.Dispose();
this.device = null;
}
}
private static Direct3DTexture9 GetSharedSurface(Direct3DDevice9Ex device, Microsoft.WindowsAPICodePack.DirectX.Direct3D10.Texture2D texture)
{
// First get a shared handle to the D3D10 texture
using (var surface = texture.QueryInterface <Microsoft.WindowsAPICodePack.DirectX.Graphics.Resource>())
{
IntPtr handle = surface.SharedHandle;
// Then create a D3D9 texture using the D3D10 shared handle.
// The D3D10 texture must be in the DXGI_FORMAT_B8G8R8A8_UNORM
// format (direct 9 version is D3DFMT_A8R8G8B8).
return(device.CreateTexture(
texture.Description.Width,
texture.Description.Height,
1,
1, // D3DUSAGE_RENDERTARGET
21, // D3DFMT_A8R8G8B8
0, // D3DPOOL_DEFAULT
ref handle));
}
}
/// <summary>
/// Assigns a <see cref="D3D10.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(D3D10.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(Directx2D.NativeMethods.GetDesktopWindow()))
using (var texture9 = GetSharedSurface(device, texture))
{
this.surface = texture9.GetSurfaceLevel(0);
}
this.SetBackBuffer(D3DResourceType.IDirect3DSurface9, this.surface.NativeInterface);
}
}
private void CreateTexture(int width, int height)
{
var description = new D3D10.Texture2DDescription();
description.ArraySize = 1;
description.BindingOptions = D3D10.BindingOptions.RenderTarget | D3D10.BindingOptions.ShaderResource;
description.CpuAccessOptions = D3D10.CpuAccessOptions.None;
description.Format = DirectX.Graphics.Format.B8G8R8A8UNorm;
description.MipLevels = 1;
description.MiscellaneousResourceOptions = D3D10.MiscellaneousResourceOptions.Shared;
description.SampleDescription = new DirectX.Graphics.SampleDescription(1, 0);
description.Usage = D3D10.Usage.Default;
description.Height = (uint)height;
description.Width = (uint)width;
// Assign result to temporary variable in case CreateTexture2D throws
var texture = this.device.CreateTexture2D(description);
if (this.texture != null)
{
this.texture.Dispose();
}
this.texture = texture;
}
/// <summary>
/// Releases the DirectX device and any device dependent resources.
/// </summary>
/// <remarks>
/// This method is safe to be called even if the instance has been disposed.
/// </remarks>
public void FreeResources()
{
this.OnFreeResources();
if (this.texture != null)
{
this.texture.Dispose();
this.texture = null;
}
if (this.renderTarget != null)
{
this.renderTarget.Dispose();
this.renderTarget = null;
}
if (this.device != null)
{
this.device.Dispose();
this.device = null;
}
}
