private void RenderLoop()
{
while (!threadStop)
{
SharpDX.DXGI.Resource resource = screenCapture.AcquireFrame();
if (resource == null && OnScreenCaptured != null)
{
OnScreenCaptured(null, 0, 0, 0);
continue;
}
Texture2D original = resource.QueryInterface <Texture2D>();
cDev.context.CopySubresourceRegion(original, 0, null, mipTexture, 0, 0, 0, 0);
original.Dispose();
resource.Dispose();
screenCapture.ReleaseFrame();
cDev.context.GenerateMips(mipView);
float scale = topPosition - bottomPosition;
float offset = topPosition + bottomPosition - 1f;
cDev.context.ClearRenderTargetView(intermediateView, Color4.Black);
passThroughFilter.Apply(cDev.context, mipView, intermediateView, scale, offset);
cDev.context.CopyResource(intermediateTexture, cpuTexture);
cDev.context.ClearRenderTargetView(cDev.renderView, Color.Black);
passThroughFilter.Apply(cDev.context, mipView, cDev.renderView, 1f, 0f);
cDev.Present();
DataStream stream;
DataBox dataBox = cDev.context.MapSubresource(cpuTexture, 0, MapMode.Read, SharpDX.Direct3D11.MapFlags.None, out stream);
int count = dataBox.RowPitch / 16 * screenCaptureHeight;
System.Numerics.Vector4[] pixels = stream.ReadRange <System.Numerics.Vector4>(count);
stream.Dispose();
cDev.context.UnmapSubresource(cpuTexture, 0);
if (OnScreenCaptured != null)
{
OnScreenCaptured(pixels, screenCaptureWidth, screenCaptureHeight, dataBox.RowPitch / 16);
}
}
}