/// <summary>
/// Releases unmanaged and - optionally - managed resources
/// </summary>
/// <param name="disposing"><c>true</c> to release both managed and unmanaged resources; <c>false</c> to release only unmanaged resources.</param>
private void Dispose(bool disposing)
{
if (_disposed)
{
return;
}
if (disposing)
{
Settings.Window.ParentChanged -= Window_ParentChanged;
if (_topLevelControl != null)
{
_topLevelControl.ParentChanged -= Window_ParentChanged;
}
if (_parentForm != null)
{
_parentForm.ResizeBegin -= _parentForm_ResizeBegin;
_parentForm.ResizeEnd -= _parentForm_ResizeEnd;
_parentForm.Activated -= _parentForm_Activated;
_parentForm.Deactivate -= _parentForm_Deactivate;
}
Settings.Window.Resize -= Window_Resize;
if (_renderTarget != null)
{
_renderTarget.Dispose();
_renderTarget = null;
}
Gorgon.Log.Print("GorgonSwapChain '{0}': Removing D3D11 swap chain...", LoggingLevel.Simple, Name);
if (GISwapChain != null)
{
// Always go to windowed mode before destroying the swap chain.
GISwapChain.SetFullscreenState(false, null);
GISwapChain.Dispose();
}
if (Graphics != null)
{
Graphics.RemoveTrackedObject(this);
}
GISwapChain = null;
}
Graphics = null;
_disposed = true;
}
/// <summary>
/// Function to resize the back buffers.
/// </summary>
private void ResizeBuffers()
{
if (BeforeSwapChainResized != null)
{
BeforeSwapChainResized(this, EventArgs.Empty);
}
var targetReseat = _renderTarget.OnSwapChainResize();
var depthReseat = DepthStencilBuffer != null && DepthStencilBuffer.OnDepthStencilResize();
GISwapChain.ResizeBuffers(Settings.BufferCount, Settings.VideoMode.Width, Settings.VideoMode.Height, (GI.Format)Settings.VideoMode.Format, GI.SwapChainFlags.AllowModeSwitch);
CreateResources(targetReseat, depthReseat);
if (AfterSwapChainResized != null)
{
AfterSwapChainResized(this, new GorgonAfterSwapChainResizedEventArgs(this));
}
}
/// <summary>
/// Handles the Deactivate event of the _parentForm control.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">The <see cref="System.EventArgs"/> instance containing the event data.</param>
private void _parentForm_Deactivate(object sender, EventArgs e)
{
try
{
if ((GISwapChain == null) || (!Graphics.ResetFullscreenOnFocus))
{
return;
}
Graphics.GetFullScreenSwapChains();
// Reset the video mode to windowed.
// Note: For some reason, this is different than it was on SlimDX. I never had to do this before, but with
// SharpDX I now have to handle the transition from full screen to windowed manually.
if (!GISwapChain.IsFullScreen)
{
return;
}
GISwapChain.SetFullscreenState(false, null);
Settings.IsWindowed = true;
((Form)Settings.Window).WindowState = FormWindowState.Minimized;
}
catch (Exception ex)
{
#if DEBUG
GorgonException.Catch(ex,
() =>
GorgonDialogs.ErrorBox(_parentForm,
string.Format(Resources.GORGFX_CATASTROPHIC_ERROR, Gorgon.Log.LogPath),
null,
ex));
// If we fail in here, then we have a terminal error in Gorgon, don't risk further corruption.
Gorgon.Quit();
#else
GorgonException.Catch(ex);
#endif
}
}
/// <summary>
/// Handles the Activated event of the _parentForm control.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">The <see cref="System.EventArgs"/> instance containing the event data.</param>
private void _parentForm_Activated(object sender, EventArgs e)
{
try
{
if ((GISwapChain == null) || (!Graphics.ResetFullscreenOnFocus))
{
return;
}
Graphics.GetFullScreenSwapChains();
if (GISwapChain.IsFullScreen)
{
return;
}
((Form)Settings.Window).WindowState = FormWindowState.Normal;
// Get the current video output.
GISwapChain.SetFullscreenState(true, null);
Settings.IsWindowed = false;
}
catch (Exception ex)
{
#if DEBUG
GorgonException.Catch(ex,
() =>
GorgonDialogs.ErrorBox(_parentForm,
string.Format(Resources.GORGFX_CATASTROPHIC_ERROR, Gorgon.Log.LogPath),
null,
ex));
// If we fail in here, then we have a terminal error in Gorgon, don't risk further corruption.
Gorgon.Quit();
#else
GorgonException.Catch(ex);
#endif
}
}
/// <summary>
/// Function to flip the buffers to the front buffer.
/// </summary>
/// <param name="interval">Vertical blank interval.</param>
/// <remarks>If <paramref name="interval"/> parameter is greater than 0, then this method will synchronize to the vertical blank count specified by interval Passing 0 will display immediately.
/// <para>If the window that the swap chain is bound with is occluded and/or the swap chain is in between a mode switch, then this method will place the swap chain into stand by mode, and will recover (i.e. turn off stand by) once the device is ready for rendering again.</para>
/// </remarks>
/// <exception cref="System.ArgumentOutOfRangeException">Thrown when the interval parameter is less than 0 or greater than 4.</exception>
/// <exception cref="GorgonLibrary.GorgonException">Thrown when the method encounters an unrecoverable error.</exception>
public void Flip(int interval)
{
var flags = GI.PresentFlags.None;
Result result = Result.Ok;
GorgonDebug.AssertParamRange(interval, 0, 4, true, true, "interval");
if (GISwapChain == null)
{
return;
}
if (IsInStandBy)
{
flags = GI.PresentFlags.Test;
}
try
{
IsInStandBy = false;
GISwapChain.Present(interval, flags);
}
catch (SharpDXException sdex)
{
if (sdex.ResultCode == Result.Ok)
{
return;
}
if (!result.Success)
{
throw new GorgonException(GorgonResult.CannotWrite, Resources.GORGFX_CATASTROPHIC_ERROR);
}
IsInStandBy = true;
}
}
/// <summary>
/// Function to update the fullscreen/windowed mode state.
/// </summary>
private void ModeStateUpdate()
{
var e = new GorgonBeforeStateTransitionEventArgs(!Settings.IsWindowed);
GI.ModeDescription mode = GorgonVideoMode.Convert(Settings.VideoMode);
try
{
GISwapChain.ResizeTarget(ref mode);
if (!Settings.IsWindowed)
{
if (BeforeStateTransition != null)
{
BeforeStateTransition(this, new GorgonBeforeStateTransitionEventArgs(true));
}
if (!e.Cancel)
{
// We don't need to force an output. We'll just let DXGI figure it out from the
// window area on the monitor. Currently SharpDX's ContainingOutput property is
// buggy in 2.4.2 and will return multiple ref counts for each time the property is
// read. v2.5.0 is in dev, but now has the problem of not returning the correct output.
GISwapChain.SetFullscreenState(true, null);
if (_parentForm != null)
{
_parentForm.Activated += _parentForm_Activated;
_parentForm.Deactivate += _parentForm_Deactivate;
}
}
}
else
{
if (BeforeStateTransition != null)
{
BeforeStateTransition(this, new GorgonBeforeStateTransitionEventArgs(false));
}
if (!e.Cancel)
{
GISwapChain.SetFullscreenState(false, null);
}
}
}
catch (SharpDXException sdEx)
{
switch (sdEx.ResultCode.Code)
{
case (int)GI.DXGIStatus.ModeChangeInProgress:
Gorgon.Log.Print("GorgonSwapChain '{0}': Could not switch to full screen mode because the device was busy switching to full screen on another output.", LoggingLevel.All, Name);
break;
default:
if (sdEx.ResultCode != GI.ResultCode.NotCurrentlyAvailable)
{
throw;
}
Gorgon.Log.Print(
"GorgonSwapChain '{0}': Could not switch to full screen mode because the device is not currently available. Possible causes are: .",
LoggingLevel.All,
Name);
break;
}
}
ResizeBuffers();
if ((!e.Cancel) && (AfterStateTransition != null))
{
AfterStateTransition(this, new GorgonAfterSwapChainResizedEventArgs(this));
}
}