private void RenderComposite(Scene scene, ref IDrawingContextImpl context)
{
EnsureDrawingContext(ref context);
context.Clear(Colors.Transparent);
var clientRect = new Rect(scene.Size);
var firstLayer = true;
foreach (var layer in scene.Layers)
{
var bitmap = Layers[layer.LayerRoot].Bitmap;
var sourceRect = new Rect(0, 0, bitmap.Item.PixelSize.Width, bitmap.Item.PixelSize.Height);
if (layer.GeometryClip != null)
{
context.PushGeometryClip(layer.GeometryClip);
}
if (layer.OpacityMask == null)
{
if (firstLayer && bitmap.Item.CanBlit)
{
bitmap.Item.Blit(context);
}
else
{
context.DrawBitmap(bitmap, layer.Opacity, sourceRect, clientRect);
}
}
else
{
context.DrawBitmap(bitmap, layer.OpacityMask, layer.OpacityMaskRect, sourceRect);
}
if (layer.GeometryClip != null)
{
context.PopGeometryClip();
}
firstLayer = false;
}
if (_overlay != null)
{
var sourceRect = new Rect(0, 0, _overlay.Item.PixelSize.Width, _overlay.Item.PixelSize.Height);
context.DrawBitmap(_overlay, 0.5, sourceRect, clientRect);
}
if (DrawFps)
{
RenderFps(context, clientRect, scene.Layers.Count);
}
}
public void Render(IDrawingContextImpl context)
{
var finalRenderSurface = context.CreateLayer(_destRect.Size);
if (finalRenderSurface is null)
{
context.Clear(Colors.Aqua);
return;
}
using (var renderSurfaceCtx = finalRenderSurface.CreateDrawingContext(null))
{
using (_lottieCanvas.CreateSession(_destRect.Size, finalRenderSurface,
new DrawingContext(renderSurfaceCtx)))
{
_compositionLayer.Draw(_lottieCanvas, _matrix, 255);
}
}
context.DrawBitmap(RefCountable.Create(finalRenderSurface),
1,
new Rect(new Point(), finalRenderSurface.PixelSize.ToSize(1)), _destRect);
finalRenderSurface.Dispose();
}
public static WriteableBitmap ToWriteableBitmap(Bitmap bmp)
{
var wb = new WriteableBitmap(bmp.PixelSize, bmp.Dpi, PixelFormat.Bgra8888);
using (IRenderTarget rtb = Utils.RenderInterface.CreateRenderTarget(new[] { new WriteableBitmapSurface(wb) }))
using (IDrawingContextImpl ctx = rtb.CreateDrawingContext(null))
{
var rect = new Rect(bmp.Size);
ctx.DrawBitmap(bmp.PlatformImpl, 1, rect, rect);
}
bmp.Dispose();
return(wb);
}
/// <inheritdoc/>
public override void Render(IDrawingContextImpl context)
{
context.Transform = Transform;
context.DrawBitmap(Source, Opacity, SourceRect, DestRect, BitmapInterpolationMode);
}
public void Render(IDrawingContextImpl context, double opacity, Rect sourceRect, Rect destRect, BitmapInterpolationMode bitmapInterpolationMode = BitmapInterpolationMode.Default)
{
Read(b => context.DrawBitmap(_read.PlatformImpl, opacity, sourceRect, destRect, bitmapInterpolationMode));
NotifyRendered();
}