public static ID3D11Device CreateD3Device()
{
Vortice.Direct3D.FeatureLevel[] supportedFeatureLevels = new[]
{
Vortice.Direct3D.FeatureLevel.Level_11_1,
Vortice.Direct3D.FeatureLevel.Level_11_0,
Vortice.Direct3D.FeatureLevel.Level_10_1,
Vortice.Direct3D.FeatureLevel.Level_10_0,
};
DriverType[] supportedDrivers = new[]
{
DriverType.Hardware,
DriverType.Warp,
};
Result result = default;
foreach (DriverType driver in supportedDrivers)
{
result = D3D11.D3D11CreateDevice(null, driver, DeviceCreationFlags.BgraSupport, supportedFeatureLevels, out ID3D11Device device);
if (result.Success)
{
return(device);
}
}
throw new SharpGenException(result);
}
private void StartDesktopDuplicator(int adapterId, int outputId)
{
var adapter = factory.GetAdapter1(adapterId);
D3D11.D3D11CreateDevice(adapter, DriverType.Unknown, DeviceCreationFlags.None, s_featureLevels, out device);
var output = adapter.GetOutput(outputId);
var output1 = output.QueryInterface <IDXGIOutput1>();
var bounds = output1.Description.DesktopCoordinates;
var width = bounds.Right - bounds.Left;
var height = bounds.Bottom - bounds.Top;
var textureDesc = new Texture2DDescription
{
CpuAccessFlags = CpuAccessFlags.Read,
BindFlags = BindFlags.None,
Format = Format.B8G8R8A8_UNorm,
Width = width / 2,
Height = height / 2,
OptionFlags = ResourceOptionFlags.None,
MipLevels = 1,
ArraySize = 1,
SampleDescription = { Count = 1, Quality = 0 },
Usage = Usage.Staging
};
stagingTexture = device.CreateTexture2D(textureDesc);
var smallerTextureDesc = new Texture2DDescription
{
CpuAccessFlags = CpuAccessFlags.None,
BindFlags = BindFlags.RenderTarget | BindFlags.ShaderResource,
Format = Format.B8G8R8A8_UNorm,
Width = width,
Height = height,
OptionFlags = ResourceOptionFlags.GenerateMips,
MipLevels = 4,
ArraySize = 1,
SampleDescription = { Count = 1, Quality = 0 },
Usage = Usage.Default
};
smallerTexture = device.CreateTexture2D(smallerTextureDesc);
smallerTextureView = device.CreateShaderResourceView(smallerTexture);
duplication = output1.DuplicateOutput(device);
}
public static Bitmap CaptureScreenFrames(int screenId)
{
var factory = DXGI.CreateDXGIFactory1 <IDXGIFactory1>();
var adapter = factory.GetAdapter(0);
var output = adapter.GetOutput(screenId);
var output1 = output.QueryInterface <IDXGIOutput1>();
D3D11.D3D11CreateDevice(adapter, DriverType.Unknown, DeviceCreationFlags.None, s_featureLevels, out var device);
var bounds = output1.Description.DesktopCoordinates;
var textureDesc = new Texture2DDescription
{
CpuAccessFlags = CpuAccessFlags.Read,
BindFlags = BindFlags.None,
Format = Format.B8G8R8A8_UNorm,
Width = bounds.Right - bounds.Left,
Height = bounds.Bottom - bounds.Top,
OptionFlags = ResourceOptionFlags.None,
MipLevels = 1,
ArraySize = 1,
SampleDescription = { Count = 1, Quality = 0 },
Usage = Vortice.Direct3D11.Usage.Staging
};
var duplication = output1.DuplicateOutput(device);
var currentFrame = device.CreateTexture2D(textureDesc);
Thread.Sleep(100);
duplication.AcquireNextFrame(500, out var frameInfo, out var desktopResource);
var tempTexture = desktopResource.QueryInterface <ID3D11Texture2D>();
device.ImmediateContext.CopyResource(currentFrame, tempTexture);
var dataBox = device.ImmediateContext.Map(currentFrame, 0, MapMode.Read, Vortice.Direct3D11.MapFlags.None);
var frame = new Bitmap(1920, 1080, PixelFormat.Format32bppRgb);
var mapDest = frame.LockBits(new Rectangle(0, 0, 1920, 1080), ImageLockMode.WriteOnly, frame.PixelFormat);
for (int y = 0, sizeInBytesToCopy = 1920 * 4; y < 1080; y++)
{
MemoryHelpers.CopyMemory(mapDest.Scan0 + y * mapDest.Stride, dataBox.DataPointer + y * dataBox.RowPitch, sizeInBytesToCopy);
}
frame.UnlockBits(mapDest);
return(frame);
}
void Run()
{
D3D11.D3D11CreateDevice(null, DriverType.Hardware, DeviceCreationFlags.None, null, out device, out deviceContext);
var moduleHandle = GetModuleHandle(null);
var wndClass = new WNDCLASSEX
{
Size = Unsafe.SizeOf <WNDCLASSEX>(),
Styles = WindowClassStyles.CS_HREDRAW | WindowClassStyles.CS_VREDRAW | WindowClassStyles.CS_OWNDC,
WindowProc = WndProc,
InstanceHandle = moduleHandle,
CursorHandle = LoadCursor(IntPtr.Zero, SystemCursor.IDC_ARROW),
BackgroundBrushHandle = IntPtr.Zero,
IconHandle = IntPtr.Zero,
ClassName = "WndClass",
};
RegisterClassEx(ref wndClass);
var win32window = new Win32Window(wndClass.ClassName, "Vortice ImGui", 800, 600);
var mainWindow = new MainWindow(win32window, device, deviceContext);
windows.Add(mainWindow.Win32Window.Handle, mainWindow);
mainWindow.Show();
while (!quitRequested)
{
if (PeekMessage(out var msg, IntPtr.Zero, 0, 0, PM_REMOVE))
{
TranslateMessage(ref msg);
DispatchMessage(ref msg);
if (msg.Value == (uint)WindowMessage.Quit)
{
quitRequested = true;
break;
}
}
foreach (var window in windows.Values)
{
window.UpdateAndDraw();
}
}
}
public static DesktopDuplicatorInternal CreateDesktopDuplicator(ILogger logger, int adapterIndex, int outputDeviceIndex)
{
var dd = new DesktopDuplicatorInternal
{
_outputDeviceIndex = outputDeviceIndex
};
var createFactoryResult = DXGI.CreateDXGIFactory1(out IDXGIFactory1 factory);
if (!createFactoryResult.Success)
{
throw new DesktopDuplicationException("Couldn't create a DXGI Factory.");
}
IDXGIAdapter1 adapter = null;
IDXGIOutput output = null;
try
{
var result = factory.EnumAdapters1(adapterIndex, out adapter);
if (result.Failure)
{
throw new DesktopDuplicationException($"An error occurred attempting to retrieve the adapter at the specified index ({adapterIndex}): {result}");
}
if (adapter == null)
{
throw new DesktopDuplicationException($"An adapter was not found at the specified index ({adapterIndex}).");
}
logger.LogInformation($"Using adapter at index {adapterIndex} - {adapter.Description.Description}");
var createD3dDeviceResult = D3D11.D3D11CreateDevice(adapter, DriverType.Unknown, DeviceCreationFlags.None, null, out dd._d3dDevice, out dd._immediateContext);
if (!createD3dDeviceResult.Success)
{
throw new DesktopDuplicationException("Couldn't create a D3D device from the specified adapter.");
}
using var device = dd._d3dDevice.QueryInterface <IDXGIDevice>();
var outputResult = adapter.EnumOutputs(outputDeviceIndex, out output);
if (outputResult.Failure)
{
throw new DesktopDuplicationException($"An error occurred attempting to retrieve the output device at the specified index ({outputDeviceIndex}): {outputResult}");
}
if (output == null)
{
throw new DesktopDuplicationException($"An output was not found at the specified index ({outputDeviceIndex}).");
}
logger.LogInformation($"Using output device on adapter {adapterIndex} at index {outputDeviceIndex}.");
var output6 = output.QueryInterface <IDXGIOutput6>();
try
{
// Copy the values to a new rect.
var rectTemp = output6.Description.DesktopCoordinates;
dd._desktopRect = new RawRect(rectTemp.Left, rectTemp.Top, rectTemp.Right, rectTemp.Bottom);
dd._outputDuplication = output6.DuplicateOutput(device);
var stagingTexture = new Texture2DDescription()
{
CpuAccessFlags = CpuAccessFlags.Read,
BindFlags = BindFlags.None,
Format = dd._outputDuplication.Description.ModeDescription.Format,
Width = Math.Abs(dd._desktopRect.Right - dd._desktopRect.Left),
Height = Math.Abs(dd._desktopRect.Bottom - dd._desktopRect.Top),
OptionFlags = ResourceOptionFlags.None,
MipLevels = 1,
ArraySize = 1,
SampleDescription = { Count = 1, Quality = 0 },
Usage = Usage.Staging // << can be read by CPU
};
// Initialize the Output Duplication -- If this isn't done occassionally an 'Unsupported' result will occur with DuplicationOutput1
dd._desktopImageTexture = dd._d3dDevice.CreateTexture2D(stagingTexture);
}
catch (SharpGenException ex)
{
if (ex.Descriptor.NativeApiCode == "DXGI_ERROR_UNSUPPORTED")
{
throw new DesktopDuplicationException("Unsupported desktop mode or scenario.");
}
else if (ex.Descriptor.NativeApiCode == "DXGI_ERROR_NOT_CURRENTLY_AVAILABLE")
{
throw new DesktopDuplicationException("There is already the maximum number of applications using the Desktop Duplication API running, please close one of the applications and try again.");
}
else
{
throw;
}
}
}
finally
{
if (output != null)
{
output.Dispose();
}
if (adapter != null)
{
adapter.Dispose();
}
if (factory != null)
{
factory.Dispose();
}
}
return(dd);
}
public bool Init(IntPtr WindowHandle)
{
var factory = DXGI.CreateDXGIFactory1 <IDXGIFactory1>();
var adapter = factory.GetAdapter1(0);
var monitor = adapter.GetOutput(0);
var modes = monitor.GetDisplayModeList(Format.R8G8B8A8_UNorm, DisplayModeEnumerationFlags.Interlaced);
var rational = new Rational(0, 1);
var adapterDescription = adapter.Description;
//VideoCardMemory = adapterDescription.DedicatedVideoMemory >> 10 >> 10;
//VideoCardDescription = adapterDescription.Description.Trim('\0');
monitor.Dispose();
adapter.Dispose();
var swapChainDesc = new SwapChainDescription()
{
BufferCount = 2,
BufferDescription = new ModeDescription(1920, 1080, rational, Format.R8G8B8A8_UNorm),
Usage = Usage.RenderTargetOutput,
OutputWindow = WindowHandle,
SampleDescription = new SampleDescription(1, 0),
IsWindowed = true,
Flags = SwapChainFlags.None,
SwapEffect = SwapEffect.Discard
};
// Create Device and DeviceContext
ID3D11Device TempDevice = null;
ID3D11DeviceContext TempDeviceContext = null;
D3D11.D3D11CreateDevice(adapter, DriverType.Hardware, DeviceCreationFlags.None, null, out TempDevice, out TempDeviceContext);
Device = TempDevice.QueryInterface <ID3D11Device1>();
DeviceContext = TempDeviceContext.QueryInterface <ID3D11DeviceContext1>();
TempDevice.Dispose();
TempDeviceContext.Dispose();
// Create SwapChain
SwapChain = factory.CreateSwapChain(Device, swapChainDesc);
factory.MakeWindowAssociation(WindowHandle, WindowAssociationFlags.IgnoreAltEnter);
var backBuffer = SwapChain.GetBuffer <ID3D11Texture2D>(0);
m_RenderTargetView = Device.CreateRenderTargetView(backBuffer);
backBuffer.Dispose();
// Create blend state
BlendDescription bsd = new BlendDescription()
{
AlphaToCoverageEnable = false,//true,
IndependentBlendEnable = false,
};
bsd.RenderTarget[0].BlendOperationAlpha = BlendOperation.Add;
bsd.RenderTarget[0].BlendOperation = BlendOperation.Add;
bsd.RenderTarget[0].DestinationBlendAlpha = Blend.One;
bsd.RenderTarget[0].DestinationBlend = Blend.InverseSourceAlpha;
bsd.RenderTarget[0].IsBlendEnabled = true;
bsd.RenderTarget[0].RenderTargetWriteMask = ColorWriteEnable.All;
bsd.RenderTarget[0].SourceBlendAlpha = Blend.Zero;
bsd.RenderTarget[0].SourceBlend = Blend.SourceAlpha;
bsd.AlphaToCoverageEnable = true;
ID3D11BlendState bsAlpha = Device.CreateBlendState(bsd);
// Set Blend State
DeviceContext.OMSetBlendState(bsAlpha);
BuildDepthStencilView(1920, 1080);
// Create rasterizers
m_RSDesc = new RasterizerDescription()
{
AntialiasedLineEnable = false,
CullMode = CullMode.Back,
DepthBias = 0,
DepthBiasClamp = .0f,
DepthClipEnable = false,
FillMode = FillMode.Solid,
FrontCounterClockwise = true,
MultisampleEnable = true,
ScissorEnable = false,
SlopeScaledDepthBias = .0f
};
m_RSCullSolid = Device.CreateRasterizerState(m_RSDesc);
m_RSDesc.CullMode = CullMode.None;
m_RSSolid = Device.CreateRasterizerState(m_RSDesc);
m_RSDesc.FillMode = FillMode.Wireframe;
m_RSWireFrame = Device.CreateRasterizerState(m_RSDesc);
m_RSDesc.CullMode = CullMode.Back;
m_RSCullWireFrame = Device.CreateRasterizerState(m_RSDesc);
UpdateRasterizer();
return(true);
}