private void CreateXnaResources()
{
XFG.GraphicsDevice device = _driver.XnaDevice;
if (_isSwapChain && device == null)
{
throw new Exception("Secondary window has not been given the device from the primary!");
}
if (_renderSurface != null)
{
_renderSurface.Dispose();
_renderSurface = null;
}
XFG.GraphicsAdapter.UseReferenceDevice = false;
if (_driver.Description.ToLower().Contains("nvperfhud"))
{
_useNVPerfHUD = true;
XFG.GraphicsAdapter.UseReferenceDevice = true;
}
_xnapp = new XFG.PresentationParameters();
this._xnapp.IsFullScreen = IsFullScreen;
this._xnapp.RenderTargetUsage = XFG.RenderTargetUsage.DiscardContents;
//this._xnapp.BackBufferCount = _vSync ? 2 : 1;
//this._xnapp.EnableAutoDepthStencil = isDepthBuffered;
this._xnapp.DeviceWindowHandle = _windowHandle;
this._xnapp.BackBufferHeight = Height;
this._xnapp.BackBufferWidth = Width;
//this._xnapp.FullScreenRefreshRateInHz = IsFullScreen ? _displayFrequency : 0;
if (_vSync)
{
this._xnapp.PresentationInterval = XFG.PresentInterval.One;
}
else
{
// NB not using vsync in windowed mode in D3D9 can cause jerking at low
// frame rates no matter what buffering modes are used (odd - perhaps a
// timer issue in D3D9 since GL doesn't suffer from this)
// low is < 200fps in this context
if (!IsFullScreen)
{
LogManager.Instance.Write("[XNA] : WARNING - disabling VSync in windowed mode can cause timing issues at lower frame rates, turn VSync on if you observe this problem.");
}
this._xnapp.PresentationInterval = XFG.PresentInterval.Immediate;
}
this._xnapp.BackBufferFormat = XFG.SurfaceFormat.Bgr565;
if (ColorDepth > 16)
{
this._xnapp.BackBufferFormat = XFG.SurfaceFormat.Color;
}
XFG.GraphicsAdapter currentAdapter = _driver.Adapter;
if (ColorDepth > 16)
{
XFG.SurfaceFormat bestSurfaceFormat;
XFG.DepthFormat bestDepthStencilFormat;
int bestMultiSampleCount;
if ( false /* _isSwapChain */ )
{
/*
// Create swap chain
try
{
_swapChain = new XFG.SwapChain( device, this._xnapp );
}
catch ( Exception )
{
// Try a second time, may fail the first time due to back buffer count,
// which will be corrected by the runtime
try
{
_swapChain = new XFG.SwapChain( device, this._xnapp );
}
catch ( Exception ex )
{
throw new Exception( "Unable to create an additional swap chain", ex );
}
}
// Store references to buffers for convenience
_renderSurface = _swapChain.GetBackBuffer( 0, XFG.BackBufferType.Mono );
// Additional swap chains need their own depth buffer
// to support resizing them
if ( isDepthBuffered )
{
bool discard = ( this._xnapp.PresentationFlag & XFG.PresentFlag.DiscardDepthStencil ) == 0;
try
{
_stencilBuffer = device.CreateDepthStencilSurface( Width, Height, this._xnapp.AutoDepthStencilFormat, this._xnapp.MultiSampleType, this._xnapp.MultiSampleQuality, discard );
}
catch ( Exception )
{
throw new Exception( "Unable to create a depth buffer for the swap chain" );
}
}
*/
}
else
{
if (device == null) // We haven't created the device yet, this must be the first time
{
ConfigOptionCollection configOptions = Root.Instance.RenderSystem.ConfigOptions;
ConfigOption FPUMode = configOptions["Floating-point mode"];
// Set default settings (use the one Axiom discovered as a default)
XFG.GraphicsAdapter adapterToUse = Driver.Adapter;
if (this._useNVPerfHUD)
{
// Look for 'NVIDIA NVPerfHUD' adapter
// If it is present, override default settings
foreach (XFG.GraphicsAdapter adapter in XFG.GraphicsAdapter.Adapters)
{
LogManager.Instance.Write("[XNA] : NVIDIA PerfHUD requested, checking adapter {0}:{1}", adapter.DeviceName, adapter.Description);
if (adapter.Description.ToLower().Contains("perfhud"))
{
LogManager.Instance.Write("[XNA] : NVIDIA PerfHUD requested, using adapter {0}:{1}", adapter.DeviceName, adapter.Description);
adapterToUse = adapter;
XFG.GraphicsAdapter.UseReferenceDevice = true;
break;
}
}
}
XFG.GraphicsProfile _profile = adapterToUse.IsProfileSupported(XFG.GraphicsProfile.HiDef) ? XFG.GraphicsProfile.HiDef : XFG.GraphicsProfile.Reach;
currentAdapter.QueryBackBufferFormat( _profile, this._xnapp.BackBufferFormat, XFG.DepthFormat.Depth24Stencil8, _fsaaQuality, out bestSurfaceFormat, out bestDepthStencilFormat, out bestMultiSampleCount );
this._xnapp.DepthStencilFormat = bestDepthStencilFormat;
//bestMultiSampleCount holds a value that xna thinks would be best for Anti-Aliasing,
//but fsaaQuality was chosen by the user, so I'm leaving this the same -DoubleA
this._xnapp.MultiSampleCount = _fsaaQuality;
// create the XNA GraphicsDevice, trying for the best vertex support first, and settling for less if necessary
try
{
// hardware vertex processing
this._xnapp.DeviceWindowHandle = _windowHandle;
device = new XFG.GraphicsDevice(adapterToUse, _profile, this._xnapp);
}
catch (Exception)
{
try
{
// Try a second time, may fail the first time due to back buffer count,
// which will be corrected down to 1 by the runtime
device = new XFG.GraphicsDevice(adapterToUse, _profile, this._xnapp);
}
catch (Exception ex)
{
throw new Exception("Failed to create XNA GraphicsDevice", ex);
}
}
}
// update device in driver
Driver.XnaDevice = device;
device.DeviceReset += new EventHandler<EventArgs>(OnResetDevice);
}
}
}
