public void Render(DrawingContext drawingContext)
{
if (_framebuffer == null)
{
return;
}
var curFrameStamp = _stopwatch.Elapsed;
var deltaT = curFrameStamp - _lastFrameStamp;
_lastFrameStamp = curFrameStamp;
PreRender();
GLRender?.Invoke(deltaT);
GL.BindFramebuffer(FramebufferTarget.Framebuffer, 0);
GL.Flush();
GLAsyncRender?.Invoke();
PostRender();
// Transforms are applied in reverse order
drawingContext.PushTransform(_framebuffer.TranslateTransform); // Apply translation to the image on the Y axis by the height. This assures that in the next step, where we apply a negative scale the image is still inside of the window
drawingContext.PushTransform(_framebuffer.FlipYTransform); // Apply a scale where the Y axis is -1. This will rotate the image by 180 deg
// dpi scaled rectangle from the image
var rect = new Rect(0, 0, _framebuffer.D3dImage.Width, _framebuffer.D3dImage.Height);
drawingContext.DrawImage(_framebuffer.D3dImage, rect); // Draw the image source
drawingContext.Pop(); // Remove the scale transform
drawingContext.Pop(); // Remove the translation transform
}
public void Render(DrawingContext drawingContext)
{
if (_framebuffer == null)
{
return;
}
var curFrameStamp = _stopwatch.Elapsed;
var deltaT = curFrameStamp - _lastFrameStamp;
_lastFrameStamp = curFrameStamp;
// Set up framebuffer
GL.BindFramebuffer(FramebufferTarget.Framebuffer, _framebuffer.GLFramebufferHandle);
GL.Viewport(0, 0, _framebuffer.FramebufferWidth, _framebuffer.FramebufferHeight);
GLRender?.Invoke(deltaT);
GL.BindFramebuffer(FramebufferTarget.Framebuffer, 0);
GL.Flush();
GLAsyncRender?.Invoke();
// Copy dirty area to front buffer
_framebuffer.D3dImage.Lock();
_framebuffer.D3dImage.SetBackBuffer(D3DResourceType.IDirect3DSurface9, _framebuffer.DxRenderTargetHandle);
_framebuffer.D3dImage.AddDirtyRect(new Int32Rect(0, 0, _framebuffer.FramebufferWidth, _framebuffer.FramebufferHeight));
_framebuffer.D3dImage.Unlock();
// Transforms are applied in reverse order
drawingContext.PushTransform(_framebuffer.TranslateTransform); // Apply translation to the image on the Y axis by the height. This assures that in the next step, where we apply a negative scale the image is still inside of the window
drawingContext.PushTransform(_framebuffer.FlipYTransform); // Apply a scale where the Y axis is -1. This will rotate the image by 180 deg
// dpi scaled rectangle from the image
var rect = new Rect(0, 0, _framebuffer.D3dImage.Width, _framebuffer.D3dImage.Height);
Wgl.DXUnlockObjectsNV(_context.GlDeviceHandle, 1, new[] { _framebuffer.DxInteropRegisteredHandle });
drawingContext.DrawImage(_framebuffer.D3dImage, rect); // Draw the image source
Wgl.DXLockObjectsNV(_context.GlDeviceHandle, 1, new[] { _framebuffer.DxInteropRegisteredHandle }); // Enable GL access to the framebuffer
drawingContext.Pop(); // Remove the scale transform
drawingContext.Pop(); // Remove the translation transform
}
