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Generate Update/ResizeFrame events whenever the window is moved or resized. Partially fix for issue [#1218]: "[NativeWindow] Avoid modal loop during window resize/movement".

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the_fiddler 2009-10-07 15:18:53 +00:00
parent c0528707c3
commit e441e9d067
2 changed files with 22 additions and 7 deletions
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16
Source/OpenTK/GameWindow.cs
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@ -372,7 +372,6 @@ namespace OpenTK
Stopwatch update_watch = new Stopwatch(), render_watch = new Stopwatch();
double next_render = 0.0, next_update = 0.0;
int num_updates = 0;
FrameEventArgs update_args = new FrameEventArgs();
FrameEventArgs render_args = new FrameEventArgs();
@ -382,13 +381,24 @@ namespace OpenTK
Visible = true; // Make sure the GameWindow is visible.
OnLoadInternal(EventArgs.Empty);
// On some platforms, ProcessEvents() does not return while the user is resizing or moving
// the window. We can avoid this issue by raising UpdateFrame and RenderFrame events
// whenever we encounter a size or move event.
EventHandler<EventArgs> DispatchUpdateAndRenderFrame = delegate(object sender, EventArgs e)
{
RaiseUpdateFrame(update_watch, ref next_update, update_args);
RaiseRenderFrame(render_watch, ref next_render, render_args);
};
Move += DispatchUpdateAndRenderFrame;
Resize += DispatchUpdateAndRenderFrame;
Debug.Print("Entering main loop.");
while (!IsExiting && Exists)
{
ProcessEvents();
RaiseUpdateFrame(update_watch, ref next_update, update_args);
RaiseRenderFrame(render_watch, ref next_render, render_args);
DispatchUpdateAndRenderFrame(this, EventArgs.Empty);
}
}
finally

13
Source/OpenTK/Platform/Windows/WinGLNative.cs
View file

@ -53,10 +53,7 @@ namespace OpenTK.Platform.Windows
readonly UIntPtr ModalLoopTimerId = new UIntPtr(1);
readonly uint ModalLoopTimerPeriod = 1;
UIntPtr timer_handle;
readonly Functions.TimerProc ModalLoopCallback = delegate(IntPtr handle, WindowMessage msg, UIntPtr eventId, int time)
{
// Todo: find a way to notify the frontend that it should process queued up UpdateFrame/RenderFrame events.
};
readonly Functions.TimerProc ModalLoopCallback;
bool class_registered;
bool disposed;
@ -99,6 +96,14 @@ namespace OpenTK.Platform.Windows
// don't move it below the CreateWindow calls.
WindowProcedureDelegate = WindowProcedure;
// This timer callback is called periodically when the window enters a sizing / moving modal loop.
ModalLoopCallback = delegate(IntPtr handle, WindowMessage msg, UIntPtr eventId, int time)
{
// Todo: find a way to notify the frontend that it should process queued up UpdateFrame/RenderFrame events.
if (Move != null)
Move(this, EventArgs.Empty);
};
// To avoid issues with Ati drivers on Windows 6+ with compositing enabled, the context will not be
// bound to the top-level window, but rather to a child window docked in the parent.
window = new WinWindowInfo(