/// <summary>
/// Writes the image to be drawn to the back buffer.
/// </summary>
/// <param name="message">The TickRenderedMessage received, which contains the frame to be drawn</param>
public override void Handle(TickRenderedMessage message)
{
base.Handle(message);
var frame = message[OutputModel];
if (frame == null)
{
return;
}
int width = frame.Size.Width;
int height = frame.Size.Height;
if (width == 0 || height == 0)
{
return;
}
if (SourceImage == null || width != SourceImage.Width || height != SourceImage.Height)
{
SourceImage = new WriteableBitmap(width, height, 96, 96, PixelFormats.Bgr32, null);
NotifyOfPropertyChange(() => SourceImage);
}
SourceImage.Lock();
unsafe {
int *backBuffer = (int *)SourceImage.BackBuffer;
for (int y = 0; y < height; y++)
{
for (int x = 0; x < width; x++)
{
// Compute colors in pixel format. That is sRGB:
// MSDN: Bgr32 is a sRGB format with 32 bits per pixel (BPP).
// Each color channel (blue, green, and red) is allocated 8 bits per pixel (BPP).
int bgr = ((frame[x, y].R << 16) |
(frame[x, y].G << 8) |
(frame[x, y].B));
// Set the pixel at the current position to the BGR of the frame
*backBuffer++ = bgr;
}
}
}
SourceImage.AddDirtyRect(new Int32Rect(0, 0, width, height));
SourceImage.Unlock();
}
public override void Handle(TickRenderedMessage message)
{
base.Handle(message);
if (NodeModel.Data == null)
{
return;
}
int width = NodeModel.Data.Size.Width;
int height = NodeModel.Data.Size.Height;
if (width == 0 || height == 0)
{
return;
}
if (RenderedImage == null || width != widthOld || height != heightOld)
{
RenderedImage = new WriteableBitmap(width, height, 96, 96, PixelFormats.Bgr32, null);
widthOld = width;
heightOld = height;
NotifyOfPropertyChange(() => RenderedImage);
}
RenderedImage.Lock();
unsafe {
int *backBuffer = (int *)RenderedImage.BackBuffer;
for (int y = 0; y < height; y++)
{
for (int x = 0; x < width; x++)
{
// Compute colors in pixel format. That is sRGB:
// MSDN: Bgr32 is a sRGB format with 32 bits per pixel (BPP).
// Each color channel (blue, green, and red) is allocated 8 bits per pixel (BPP).
int rgb = ((NodeModel.Data[x, y].R << 16) |
(NodeModel.Data[x, y].G << 8) |
(NodeModel.Data[x, y].B));
// Set the pixel at the current position to the BGR of the frame
*backBuffer++ = rgb;
}
}
}
RenderedImage.AddDirtyRect(new Int32Rect(0, 0, width, height));
RenderedImage.Unlock();
}