/// <summary>
/// Resizes the backbuffer.
/// </summary>
/// <param name="width">Width of the back buffer</param>
/// <param name="height">Height of the back buffer</param>
public override void Resize(int width, int height)
{
//Do not resize if the dimensions have not changed
if (_presentParams.BackBufferHeight == height && _presentParams.BackBufferWidth == width)
{
return;
}
_resetting = true;
_presentParams.BackBufferWidth = width;
_presentParams.BackBufferHeight = height;
//If resizing in full screen, resize the target/front buffer otherwise bad things seem to happen
if (_isFullScreen)
{
DXGI.ModeDescription modeDesc = new DXGI.ModeDescription();
modeDesc.Format = D3D10Helper.ToD3DSurfaceFormat(_presentParams.BackBufferFormat);
modeDesc.Width = width;
modeDesc.Height = height;
modeDesc.RefreshRate = new SDX.Rational(0, 0);
_swapChain.ResizeTarget(modeDesc);
}
//Resize the swap chain back buffer
DestroyViews();
_swapChain.ResizeBuffers(1, width, height, D3D10Helper.ToD3DSurfaceFormat(_presentParams.BackBufferFormat), DXGI.SwapChainFlags.AllowModeSwitch);
CreateViews();
_resetting = false;
}
protected override void OnResize(System.EventArgs e)
{
if (SwapChain != null)
{
// Do things here.
Util.ReleaseCom(ref RenderTargetView);
Util.ReleaseCom(ref DepthStencilView);
Util.ReleaseCom(ref DepthStencilBuffer);
// Resize the render target
SwapChain.ResizeBuffers(1, ClientSize.Width, ClientSize.Height, Format.R8G8B8A8_UNorm, SwapChainFlags.None);
using (var resource = SlimDX.Direct3D11.Resource.FromSwapChain <Texture2D>(SwapChain, 0))
{
RenderTargetView = new RenderTargetView(Device, resource);
}
// Create the depth/stencil buffer and view
var depthBufferDesc = new Texture2DDescription
{
ArraySize = 1,
BindFlags = BindFlags.DepthStencil,
CpuAccessFlags = CpuAccessFlags.None,
Format = Format.D32_Float,
Height = ClientSize.Height,
Width = ClientSize.Width,
MipLevels = 1,
OptionFlags = ResourceOptionFlags.None,
SampleDescription = new SampleDescription(1, 0),
Usage = ResourceUsage.Default
};
DepthStencilBuffer = new Texture2D(Device, depthBufferDesc);
var depthStencilViewDesc = new DepthStencilViewDescription
{
ArraySize = 0,
Format = Format.D32_Float,
Dimension = DepthStencilViewDimension.Texture2D,
MipSlice = 0,
Flags = 0,
FirstArraySlice = 0
};
DepthStencilView = new DepthStencilView(Device, DepthStencilBuffer, depthStencilViewDesc);
ImmediateContext.OutputMerger.SetTargets(DepthStencilView, RenderTargetView);
// Set up viewport, render target (back buffer on swap chain), and render target view
// TODO KAM: Do the viewports actually need adjusting here? Probably?
Viewport = new Viewport(0.0f, 0.0f, ClientSize.Width, ClientSize.Height, 0.0f, 1.0f);
ImmediateContext.Rasterizer.SetViewports(Viewport);
base.OnResize(e);
}
}
private void CreateView(int width, int height)
{
if (width <= 0)
{
throw new ArgumentOutOfRangeException(nameof(width));
}
if (height <= 0)
{
throw new ArgumentOutOfRangeException(nameof(height));
}
Destroy();
mWidth = width;
mHeight = height;
Execution.ExecuteOnUiThread(() =>
{
mOffScreenWindow = new Form();
mOffScreenWindow.Left = -65535;
mOffScreenWindow.Top = -65535;
mOffScreenWindow.FormBorderStyle = FormBorderStyle.None;
mOffScreenWindow.Width = 1;
mOffScreenWindow.Height = 1;
mOffScreenWindow.ShowInTaskbar = false;
mOffScreenWindow.Show();
mOffScreenWindow.Hide();
});
var description = new SwapChainDescription
{
BufferCount = 1,
IsWindowed = true,
ModeDescription = new ModeDescription(0, 0, new Rational(60, 1), Format.B8G8R8A8_UNorm),
SampleDescription = new SampleDescription(1, 0),
Usage = Usage.RenderTargetOutput | Usage.Shared,
OutputHandle = mOffScreenWindow.Handle
};
mSwapChain = mDevice.CreateSwapChain(description);
mPixelShader = new PixelShader(Device, Bytecode);
mVertexShader = new VertexShader(Device, mVertexShaderBytecode);
mVertexBuffer = CreateVertexBuffer(out mVertices);
Execution.ExecuteOnUiThread(() =>
{
mOffScreenWindow.Width = mWidth;
mOffScreenWindow.Height = mHeight;
});
mSwapChain.ResizeBuffers(1, mWidth, mHeight, Format.B8G8R8A8_UNorm, SwapChainFlags.None);
Device.ImmediateContext.Rasterizer.SetViewports(new Viewport(0.0f, 0.0f, mWidth, mHeight));
Device.ImmediateContext.Rasterizer.State =
RasterizerState.FromDescription(Device,
new RasterizerStateDescription
{
CullMode = CullMode.None,
FillMode = FillMode.Solid
});
mRenderTarget = new HardwareRenderTarget(mDevice, mSwapChain);
}
