/// <summary>
/// Constructs a <see cref="TemporaryRenderTarget"/> instance.
/// </summary>
/// <param name="renderTargetIndex">Render target index</param>
/// <param name="targetSurface">Target surface to render on</param>
public TemporaryRenderTarget(int renderTargetIndex, Surface targetSurface)
{
// Select target index (0 by default)
_renderTargetIndex = renderTargetIndex;
// Remember old RenderTarget
_backBuffer = _device.GetRenderTarget(_renderTargetIndex);
// Get information of new Texture target
_targetSurface = targetSurface;
// Set new target
_device.SetRenderTarget(_renderTargetIndex, _targetSurface);
}
public DwmCapture(IntPtr hWnd)
{
_captureHwnd = hWnd;
#region Initialise the Direct3D device
int adapterOrdinal = 0;
_d3dEx = new Direct3DEx();
_adapterLuid = _d3dEx.GetAdapterLuid(adapterOrdinal);
var presentParams = new PresentParameters
{
PresentFlags = PresentFlags.LockableBackBuffer,
Windowed = true,
BackBufferFormat = Format.A8R8G8B8,
SwapEffect = SwapEffect.Flip
};
_deviceEx = new DeviceEx(_d3dEx, adapterOrdinal, DeviceType.Hardware, _captureHwnd, SlimDX.Direct3D9.CreateFlags.Multithreaded | SlimDX.Direct3D9.CreateFlags.SoftwareVertexProcessing, presentParams);
#endregion
#region Setup the shared surface (using DWM)
uint format = 0;
IntPtr pSharedHandle = IntPtr.Zero;
int hr = NativeMethods.GetSharedSurface(_captureHwnd, _adapterLuid, 0, 0, ref format, out pSharedHandle, 0);
NativeMethods.UpdateWindowShared(_captureHwnd, 0, 0, 0, IntPtr.Zero, IntPtr.Zero);
RECT winRect;
NativeMethods.GetWindowRect(_captureHwnd, out winRect);
Size size = new Size(winRect.Right - winRect.Left, winRect.Bottom - winRect.Top);
/* Hack because SlimDX does not let you specify a shared handle for creating shared resources we
* have to create an IDirect3DDevice9 reference to the device instead */
IDirect3DDevice9 devEx = (IDirect3DDevice9)Marshal.GetObjectForIUnknown(_deviceEx.ComPointer);
IntPtr pTexture;
devEx.CreateTexture((int)size.Width, (int)size.Height, 1, 1, format, 0, out pTexture, ref pSharedHandle);
Texture texture = Texture.FromPointer(pTexture);
_sharedSurface = texture.GetSurfaceLevel(0);
_renderTarget = Surface.CreateRenderTarget(_deviceEx, (int)size.Width, (int)size.Height, Format.X8R8G8B8,
MultisampleType.None, 0, false);
_deviceEx.SetRenderTarget(0, _renderTarget);
Surface.FromSurface(_renderTarget, _sharedSurface, Filter.None, 0);
_systemMemorySurface = Surface.CreateOffscreenPlain(_deviceEx, (int)size.Width, (int)size.Height,
Format.X8R8G8B8, Pool.SystemMemory);
#endregion
}
public override void Reset(int w, int h)
{
device.GetOrThrow();
if (w < 1)
{
throw new ArgumentOutOfRangeException("w");
}
if (h < 1)
{
throw new ArgumentOutOfRangeException("h");
}
Set(ref renderTarget, new Texture(this.device, w, h, 1, Usage.RenderTarget, Format.A8R8G8B8, Pool.Default));
using (var surface = renderTarget.GetSurfaceLevel(0))
device.SetRenderTarget(0, surface);
}
public void Initialize(int width, int height)
{
Uninitialize();
_d3d = new Direct3DEx();
IntPtr windowHandle = GetWpfWindowHandle();
PresentParameters presentationParams = new PresentParameters(width, height);
_d3dDevice = new DeviceEx(_d3d, DefaultAdapterNumber, DeviceType.Hardware, windowHandle, CreateFlags.HardwareVertexProcessing, presentationParams);
RenderTarget = Surface.CreateRenderTarget(_d3dDevice, width, height, Format.A8R8G8B8, MultisampleType.None, 0, true);
_d3dDevice.SetRenderTarget(0, RenderTarget);
_vertices = new VertexBuffer(_d3dDevice, 3 * 20, Usage.WriteOnly, VertexFormat.None, Pool.Default);
_vertices.Lock(0, 0, LockFlags.None).WriteRange(new[] {
new Vertex()
{
Color = new RawColorBGRA(0, 0, 128, 255), Position = new Vector4(32.0f, 8.0f, 4.0f, 1.0f)
},
new Vertex()
{
Color = new RawColorBGRA(0, 128, 0, 255), Position = new Vector4(52f, 40.0f, 4.0f, 1.0f)
},
new Vertex()
{
Color = new RawColorBGRA(128, 0, 0, 255), Position = new Vector4(12f, 40.0f, 4.0f, 1.0f)
}
});
_vertices.Unlock();
var vertexElems = new[] {
new VertexElement(0, 0, DeclarationType.Float4, DeclarationMethod.Default, DeclarationUsage.PositionTransformed, 0),
new VertexElement(0, 16, DeclarationType.Color, DeclarationMethod.Default, DeclarationUsage.Color, 0),
VertexElement.VertexDeclarationEnd
};
_vertexDecl = new VertexDeclaration(_d3dDevice, vertexElems);
}
public DwmCapture(IntPtr hWnd)
{
_captureHwnd = hWnd;
#region Initialise the Direct3D device
int adapterOrdinal = 0;
_d3dEx = new Direct3DEx();
_adapterLuid = _d3dEx.GetAdapterLuid(adapterOrdinal);
var presentParams = new PresentParameters
{
PresentFlags = PresentFlags.LockableBackBuffer,
Windowed = true,
BackBufferFormat = Format.A8R8G8B8,
SwapEffect = SwapEffect.Flip
};
_deviceEx = new DeviceEx(_d3dEx, adapterOrdinal, DeviceType.Hardware, _captureHwnd, SlimDX.Direct3D9.CreateFlags.Multithreaded | SlimDX.Direct3D9.CreateFlags.SoftwareVertexProcessing, presentParams);
#endregion
#region Setup the shared surface (using DWM)
uint format = 0;
IntPtr pSharedHandle = IntPtr.Zero;
int hr = NativeMethods.GetSharedSurface(_captureHwnd, _adapterLuid, 0, 0, ref format, out pSharedHandle, 0);
NativeMethods.UpdateWindowShared(_captureHwnd, 0, 0, 0, IntPtr.Zero, IntPtr.Zero);
RECT winRect;
NativeMethods.GetWindowRect(_captureHwnd, out winRect);
Size size = new Size(winRect.Right - winRect.Left, winRect.Bottom - winRect.Top);
/* Hack because SlimDX does not let you specify a shared handle for creating shared resources we
* have to create an IDirect3DDevice9 reference to the device instead */
IDirect3DDevice9 devEx = (IDirect3DDevice9)Marshal.GetObjectForIUnknown(_deviceEx.ComPointer);
IntPtr pTexture;
devEx.CreateTexture((int)size.Width, (int)size.Height, 1, 1, format, 0, out pTexture, ref pSharedHandle);
Texture texture = Texture.FromPointer(pTexture);
_sharedSurface = texture.GetSurfaceLevel(0);
_renderTarget = Surface.CreateRenderTarget(_deviceEx, (int)size.Width, (int)size.Height, Format.X8R8G8B8,
MultisampleType.None, 0, false);
_deviceEx.SetRenderTarget(0, _renderTarget);
Surface.FromSurface(_renderTarget, _sharedSurface, Filter.None, 0);
_systemMemorySurface = Surface.CreateOffscreenPlain(_deviceEx, (int)size.Width, (int)size.Height,
Format.X8R8G8B8, Pool.SystemMemory);
#endregion
}
