public override void RenderToBuffer(IXCanvas xCanvas, IntPtr pixels, int width, int height, int rowBytes)
{
var info = new SKImageInfo(width, height, SKImageInfo.PlatformColorType, SKAlphaType.Premul);
using (SKSurface surface = SKSurface.Create(info, pixels, rowBytes))
{
// Paint all elements from the canvas on the surface
new SkiaPainter(surface).Paint(xCanvas);
}
}
public void Paint(IXCanvas xCanvas)
{
IBrush?background = xCanvas.Background;
if (background is ISolidColorBrush solidColorBrush)
{
skCanvas.Clear(ToSkiaColor(solidColorBrush.Color));
}
else
{
skCanvas.Clear(SKColors.Transparent);
}
ITransform?xGraphicsRenderTransform = xCanvas.GraphicsRenderTransform;
if (xGraphicsRenderTransform != null)
{
ApplyTransform(xGraphicsRenderTransform, xCanvas);
}
PaintGraphicsElements(xCanvas.Children);
}
/// <summary>
/// Render the graphics to the specified bitmap memory buffer.
/// </summary>
/// <param name="xCanvas">graphics object to render</param>
/// <param name="pixels">buffer data</param>
/// <param name="width">width of the bitmap, in pixels</param>
/// <param name="height">height of the bitmap, in pixels</param>
/// <param name="rowBytes">number of bytes per row in the buffer</param>
public abstract void RenderToBuffer(IXCanvas xCanvas, IntPtr pixels, int width, int height,
int rowBytes);
