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Fixed #4

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Sdl2InputDriver.Dispose() would call SDL_DelEventWatch with a different
"user_data" parameter than SDL_AdEventWatch. This caused the EventFilter
to remain registered and subsequently crash when closing and reopening a
window.
This commit is contained in:
Stefanos A. 2013-11-20 09:10:12 +01:00
parent 255f4e9083
commit 48803bb4d6
3 changed files with 15 additions and 3 deletions
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8
Source/OpenTK/Platform/SDL2/Sdl2.cs
View file

@ -83,6 +83,10 @@ namespace OpenTK.Platform.SDL2
[DllImport(lib, CallingConvention = CallingConvention.Cdecl, EntryPoint = "SDL_AddEventWatch", ExactSpelling = true)]
public static extern void AddEventWatch(EventFilter filter, IntPtr userdata);
[SuppressUnmanagedCodeSecurity]
[DllImport(lib, CallingConvention = CallingConvention.Cdecl, EntryPoint = "SDL_AddEventWatch", ExactSpelling = true)]
public static extern void AddEventWatch(IntPtr filter, IntPtr userdata);
[SuppressUnmanagedCodeSecurity]
[DllImport(lib, CallingConvention = CallingConvention.Cdecl, EntryPoint = "SDL_CreateRGBSurfaceFrom", ExactSpelling = true)]
public static extern IntPtr CreateRGBSurfaceFrom(IntPtr pixels,
@ -102,6 +106,10 @@ namespace OpenTK.Platform.SDL2
[DllImport(lib, CallingConvention = CallingConvention.Cdecl, EntryPoint = "SDL_DelEventWatch", ExactSpelling = true)]
public static extern void DelEventWatch(EventFilter filter, IntPtr userdata);
[SuppressUnmanagedCodeSecurity]
[DllImport(lib, CallingConvention = CallingConvention.Cdecl, EntryPoint = "SDL_DelEventWatch", ExactSpelling = true)]
public static extern void DelEventWatch(IntPtr filter, IntPtr userdata);
[SuppressUnmanagedCodeSecurity]
[DllImport(lib, CallingConvention = CallingConvention.Cdecl, EntryPoint = "SDL_DestroyWindow", ExactSpelling = true)]
public static extern void DestroyWindow(IntPtr window);

6
Source/OpenTK/Platform/SDL2/Sdl2InputDriver.cs
View file

@ -45,7 +45,8 @@ namespace OpenTK.Platform.SDL2
readonly Sdl2Mouse mouse_driver = new Sdl2Mouse();
readonly Sdl2JoystickDriver joystick_driver = new Sdl2JoystickDriver();
readonly EventFilter EventFilterDelegate = FilterInputEvents;
readonly EventFilter EventFilterDelegate_GCUnsafe = FilterInputEvents;
readonly IntPtr EventFilterDelegate;
static int count;
bool disposed;
@ -54,6 +55,7 @@ namespace OpenTK.Platform.SDL2
{
lock (SDL.Sync)
{
EventFilterDelegate = Marshal.GetFunctionPointerForDelegate(EventFilterDelegate_GCUnsafe);
driver_handle = new IntPtr(count++);
DriverHandles.Add(driver_handle, this);
SDL.AddEventWatch(EventFilterDelegate, driver_handle);
@ -188,7 +190,7 @@ namespace OpenTK.Platform.SDL2
joystick_driver.Dispose();
lock (SDL.Sync)
{
SDL.DelEventWatch(EventFilterDelegate, IntPtr.Zero);
SDL.DelEventWatch(EventFilterDelegate, driver_handle);
}
DriverHandles.Remove(driver_handle);
}

4
Source/OpenTK/Platform/SDL2/Sdl2NativeWindow.cs
View file

@ -59,7 +59,8 @@ namespace OpenTK.Platform.SDL2
readonly IInputDriver input_driver = new Sdl2InputDriver();
readonly EventFilter EventFilterDelegate = FilterEvents;
readonly EventFilter EventFilterDelegate_GCUnsafe = FilterEvents;
readonly IntPtr EventFilterDelegate;
static readonly Dictionary<uint, Sdl2NativeWindow> windows =
new Dictionary<uint, Sdl2NativeWindow>();
@ -85,6 +86,7 @@ namespace OpenTK.Platform.SDL2
IntPtr handle;
lock (SDL.Sync)
{
EventFilterDelegate = Marshal.GetFunctionPointerForDelegate(EventFilterDelegate_GCUnsafe);
handle = SDL.CreateWindow(title, bounds.Left + x, bounds.Top + y, width, height, flags);
SDL.AddEventWatch(EventFilterDelegate, handle);
SDL.PumpEvents();