/// <inheritdoc/>
bool IPresentationTarget.BeginRender(RenderContext context)
{
if (context == null)
{
throw new ArgumentNullException("context");
}
var graphicsDevice = GraphicsService.GraphicsDevice;
if (_renderTarget == null ||
_renderTarget.GraphicsDevice != graphicsDevice ||
_requiresResize)
{
if (_renderTarget == null)
{
_renderTarget = new SwapChainRenderTarget(
graphicsDevice,
this,
_width,
_height,
_compositionScaleX,
_compositionScaleY,
false,
SurfaceFormat.Color,
DepthFormat.Depth24Stencil8,
0,
RenderTargetUsage.PreserveContents,
PresentInterval.Default);
}
else
{
_renderTarget.Resize(_width, _height, _compositionScaleX, _compositionScaleY);
}
_requiresResize = false;
}
graphicsDevice.SetRenderTarget(_renderTarget);
context.RenderTarget = _renderTarget;
context.Viewport = new Viewport(0, 0, _renderTarget.Width, _renderTarget.Height);
_rendering = true;
return(true);
}
/// <inheritdoc/>
bool IPresentationTarget.BeginRender(RenderContext context)
{
if (context == null)
throw new ArgumentNullException("context");
var graphicsDevice = GraphicsService.GraphicsDevice;
int width = ClientSize.Width;
int height = ClientSize.Height;
if (_renderTarget == null
|| _renderTarget.GraphicsDevice != graphicsDevice
|| _renderTarget.Width != width
|| _renderTarget.Height != height)
{
if (_renderTarget == null)
_renderTarget = new SwapChainRenderTarget(graphicsDevice, Handle, width, height);
else
_renderTarget.Resize(width, height);
}
graphicsDevice.SetRenderTarget(_renderTarget);
context.RenderTarget = _renderTarget;
#else
bool deviceNeedsReset;
switch (graphicsDevice.GraphicsDeviceStatus)
{
case GraphicsDeviceStatus.Lost:
return false;
case GraphicsDeviceStatus.NotReset:
deviceNeedsReset = true;
break;
default:
var presentationParameters = graphicsDevice.PresentationParameters;
deviceNeedsReset = (width > presentationParameters.BackBufferWidth)
|| (height > presentationParameters.BackBufferHeight);
break;
}
if (deviceNeedsReset)
{
try
{
var presentationParameters = graphicsDevice.PresentationParameters;
presentationParameters.BackBufferWidth = Math.Max(width, presentationParameters.BackBufferWidth);
presentationParameters.BackBufferHeight = Math.Max(height, presentationParameters.BackBufferHeight);
graphicsDevice.Reset(presentationParameters);
}
catch (Exception)
{
return false;
}
}
context.Viewport = new Viewport(0, 0, width, height);
_rendering = true;
return true;
}