public GdiRenderingSurface(IntPtr windowId, int width, int height)
: base(RenderingSurfaceType.Offscreen)
{
_imageBuffer = new BitmapBuffer();
_finalBuffer = new BackBuffer();
WindowID = windowId;
ClientRectangle = new Rectangle(0, 0, width, height);
}
/// <summary>
/// Implementation of the <see cref="IDisposable"/> pattern
/// </summary>
/// <param name="disposing">True if this object is being disposed, false if it is being finalized</param>
protected override void Dispose(bool disposing)
{
if (disposing)
{
if (_imageBuffer != null)
{
_imageBuffer.Dispose();
_imageBuffer = null;
}
if (_finalBuffer != null)
{
_finalBuffer.Dispose();
_finalBuffer = null;
}
}
}
public Win32VtkRenderingSurface(IntPtr windowId, bool offscreen)
{
_imageBuffer = new BitmapBuffer(PixelFormat.Format32bppRgb);
_overlayBuffer = new BitmapBuffer(PixelFormat.Format32bppArgb);
_finalBuffer = new BackBuffer();
_vtkRenderer = new vtkRenderer();
_vtkRenderer.SetBackground(0.0f, 0.0f, 0.0f);
_vtkRenderWindow = new vtkWin32OpenGLRenderWindow();
_vtkRenderWindow.OffScreenRenderingOn();
_vtkRenderWindow.DoubleBufferOff();
_vtkRenderWindow.EraseOn();
_vtkRenderWindow.SwapBuffersOff();
_vtkRenderWindow.SetDesiredUpdateRate(_dynamicFrameRate);
_vtkRenderWindow.AddRenderer(_vtkRenderer);
_dynamicRenderEventPublisher = !offscreen ? new DelayedEventPublisher((s, e) => Render(true, null)) : null;
WindowID = windowId;
}
/// <summary>
/// Draws an image graphic to the specified destination buffer.
/// </summary>
/// <param name="buffer">The destination buffer.</param>
/// <param name="imageGraphic">The image graphic to be drawn.</param>
public static void DrawImageGraphic(BitmapBuffer buffer, ImageGraphic imageGraphic)
{
const int bytesPerPixel = 4;
var bounds = ((IGdiBuffer) buffer).Bounds;
var bitmapData = buffer.Bitmap.LockBits(bounds, ImageLockMode.ReadWrite, PixelFormat.Format32bppArgb);
try
{
ImageRenderer.Render(imageGraphic, bitmapData.Scan0, bitmapData.Width, bytesPerPixel, bounds);
}
finally
{
buffer.Bitmap.UnlockBits(bitmapData);
}
}
protected virtual void Dispose(bool disposing)
{
if (disposing)
{
if (_dynamicRenderEventPublisher != null)
{
_dynamicRenderEventPublisher.Cancel();
_dynamicRenderEventPublisher.Dispose();
_dynamicRenderEventPublisher = null;
}
if (_vtkRenderWindow != null)
{
_vtkRenderWindow.Dispose();
_vtkRenderWindow = null;
}
if (_vtkRenderer != null)
{
_vtkRenderer.Dispose();
_vtkRenderer = null;
}
if (_sceneGraphRoot != null)
{
_sceneGraphRoot.Dispose();
_sceneGraphRoot = null;
}
if (_imageBuffer != null)
{
_imageBuffer.Dispose();
_imageBuffer = null;
}
if (_overlayBuffer != null)
{
_overlayBuffer.Dispose();
_overlayBuffer = null;
}
if (_finalBuffer != null)
{
_finalBuffer.Dispose();
_finalBuffer = null;
}
}
}
/// <summary>
/// Renders the given <see cref="BitmapBuffer"/> to the back buffer.
/// </summary>
/// <param name="imageBuffer"></param>
public void RenderImage(BitmapBuffer imageBuffer)
{
RenderImage(imageBuffer.Bitmap);
}
/// <summary>
/// Renders the given <see cref="BitmapBuffer"/> to the back buffer.
/// </summary>
/// <param name="imageBuffer"></param>
public void RenderImage(BitmapBuffer imageBuffer)
{
RenderImage(imageBuffer.Bitmap);
}