dalance / d2dcontrol Goto Github PK

The memory usage will increase absurdly without stopping while you resize the window.
I created a WPF C# project in Visual Studio 2015 Update 3, using .NET Framework 4.5.2 on Windows 10 x64

This is a great project and I know most dx11 under WPF implementations have this issue, but is there a way to fix any of these two issues:

• Sometimes there is flickering (the rectangle from the sample dissapears for a frame)
• The animation seems to "skip" some frames from time to time for no apparent reason (this seems to happen within WPF itself as well)

ListViewのアイテムとして使用したところ、スクロールするとD2dControlの中でNullReferenceExceptionが発生しました。

• スタックトレース

D2dControl.dll!D2dControl.D2dControl.CreateAndBindTargets()	不明
D2dControl.dll!D2dControl.D2dControl.OnRenderSizeChanged(System.Windows.SizeChangedInfo sizeInfo)	不明
PresentationCore.dll!System.Windows.ContextLayoutManager.fireSizeChangedEvents()	不明
PresentationCore.dll!System.Windows.ContextLayoutManager.UpdateLayout()	不明
PresentationCore.dll!System.Windows.UIElement.UpdateLayout()	不明
PresentationFramework.dll!System.Windows.Controls.VirtualizingStackPanel.InitializeViewport.AnonymousMethod__0()	不明

• サンプルアプリのコード
  https://gist.github.com/rakka74/759019690cc4936be88f606fa02733b0

ListViewのVirtualizingPanel.VirtualizationMode="Recycling"を削除すると例外は出なくなりました。

• 動作環境
  • OS: Windows 7 Home Premium
  • Microsoft Visual Studio Community 2015 Update3
  • 使用パッケージ

<packages>
  <package id="D2dControl" version="1.1.6.0" targetFramework="net452" />
  <package id="SharpDX" version="3.0.0" targetFramework="net452" />
  <package id="SharpDX.Direct2D1" version="3.0.0" targetFramework="net452" />
  <package id="SharpDX.Direct3D11" version="3.0.0" targetFramework="net452" />
  <package id="SharpDX.Direct3D9" version="3.0.0" targetFramework="net452" />
  <package id="SharpDX.DXGI" version="3.0.0" targetFramework="net452" />
</packages>

Null reference exception is thrown in this situation because CreateAndBindTargets() is called before StartD3d() because of a resize event. A simple null check fixed this issue: PR #5

Hey, in order to load textures and render bitmaps in 2D need to make the device accessible in your control.