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Merge pull request #399 from SiliconStudio/sdl2_lazy_input

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[SDL2] Initialize input driver lazily
This commit is contained in:
Harry 2016-07-06 14:24:36 +02:00 committed by GitHub
parent 01e0027580 6d0165b75d
commit 9cd0e4e96f
1 changed files with 25 additions and 5 deletions
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30
Source/OpenTK/Platform/SDL2/Sdl2Factory.cs
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@ -34,7 +34,8 @@ namespace OpenTK.Platform.SDL2
{
class Sdl2Factory : PlatformFactoryBase
{
readonly Sdl2InputDriver InputDriver = new Sdl2InputDriver();
private readonly object inputDriverLock = new object();
private Sdl2InputDriver inputDriver;
/// <summary>
/// Gets or sets a value indicating whether to use SDL2 fullscreen-desktop mode
@ -85,17 +86,17 @@ namespace OpenTK.Platform.SDL2
public override IKeyboardDriver2 CreateKeyboardDriver()
{
return InputDriver.KeyboardDriver;
return GetInputDriver().KeyboardDriver;
}
public override IMouseDriver2 CreateMouseDriver()
{
return InputDriver.MouseDriver;
return GetInputDriver().MouseDriver;
}
public override IJoystickDriver2 CreateJoystickDriver()
{
return InputDriver.JoystickDriver;
return GetInputDriver().JoystickDriver;
}
#endregion
@ -108,7 +109,11 @@ namespace OpenTK.Platform.SDL2
{
if (manual)
{
InputDriver.Dispose();
if (inputDriver != null)
{
inputDriver.Dispose();
inputDriver = null;
}
}
base.Dispose(manual);
@ -116,6 +121,21 @@ namespace OpenTK.Platform.SDL2
}
#endregion
private Sdl2InputDriver GetInputDriver()
{
if (inputDriver == null)
{
lock (inputDriverLock)
{
// Check again inside the lock
if (inputDriver == null)
inputDriver = new Sdl2InputDriver();
}
}
return inputDriver;
}
}
}