public IntPtr GetDC()
{
return(_dxgiSurface.GetDC(true));
}
void RenderPass(Common.Region dc, Common.Size ReqSize)
{
renderTime.Start();
// FIXME so much object spam and disposal in this very high frequency function (also inside Resize called belw). My poor megabytes!
// Resize the form and backbuffer to noForm.Size, and fire the noForms sizechanged
Resize(ReqSize);
// make size...
Win32Util.Size w32Size = new Win32Util.Size((int)ReqSize.width, (int)ReqSize.height);
Win32Util.SetWindowSize(w32Size, hWnd);
// Allow noform size to change as requested..like a layout hook (truncating layout passes with the render passes for performance)
RenderSizeChanged(ReqSize);
lock (noForm)
{
// Do Drawing stuff
DrawingSize rtSize = new DrawingSize((int)d2dRenderTarget.Size.Width, (int)d2dRenderTarget.Size.Height);
using (Texture2D t2d = new Texture2D(backBuffer.Device, backBuffer.Description))
{
using (Surface1 srf = t2d.QueryInterface <Surface1>())
{
using (RenderTarget trt = new RenderTarget(d2dFactory, srf, new RenderTargetProperties(d2dRenderTarget.PixelFormat)))
{
_backRenderer.renderTarget = trt;
trt.BeginDraw();
noForm.DrawBase(this, dc);
// Fill with transparency the edgeBuffer!
trt.FillRectangle(new RectangleF(0, noForm.Size.height, noForm.Size.width + edgeBufferSize, noForm.Size.height + edgeBufferSize), scbTrans);
trt.FillRectangle(new RectangleF(noForm.Size.width, 0, noForm.Size.width + edgeBufferSize, noForm.Size.height + edgeBufferSize), scbTrans);
trt.EndDraw();
foreach (var rc in dc.AsRectangles())
{
t2d.Device.CopySubresourceRegion(t2d, 0,
new ResourceRegion()
{
Left = (int)rc.left, Right = (int)rc.right, Top = (int)rc.top, Bottom = (int)rc.bottom, Back = 1, Front = 0
}, backBuffer, 0,
(int)rc.left, (int)rc.top, 0);
}
}
}
}
// Present DC to windows (ugh layered windows sad times)
IntPtr dxHdc = surface.GetDC(false);
System.Drawing.Graphics dxdc = System.Drawing.Graphics.FromHdc(dxHdc);
Win32Util.Point dstPoint = new Win32Util.Point((int)(noForm.Location.X), (int)(noForm.Location.Y));
Win32Util.Point srcPoint = new Win32Util.Point(0, 0);
Win32Util.Size pSize = new Win32Util.Size(rtSize.Width, rtSize.Height);
Win32Util.BLENDFUNCTION bf = new Win32Util.BLENDFUNCTION()
{
SourceConstantAlpha = 255, AlphaFormat = Win32Util.AC_SRC_ALPHA, BlendFlags = 0, BlendOp = 0
};
bool suc = Win32Util.UpdateLayeredWindow(hWnd, someDC, ref dstPoint, ref pSize, dxHdc, ref srcPoint, 1, ref bf, 2);
surface.ReleaseDC();
dxdc.Dispose();
}
lastFrameRenderDuration = 1f / (float)renderTime.Elapsed.TotalSeconds;
renderTime.Reset();
}