private static InterpolationMode GetInterpolationMode(BitmapInterpolationMode interpolationMode)
{
switch (interpolationMode)
{
case BitmapInterpolationMode.LowQuality:
return(InterpolationMode.NearestNeighbor);
case BitmapInterpolationMode.MediumQuality:
return(InterpolationMode.Linear);
case BitmapInterpolationMode.HighQuality:
return(InterpolationMode.HighQualityCubic);
case BitmapInterpolationMode.Default:
return(InterpolationMode.Linear);
default:
throw new ArgumentOutOfRangeException(nameof(interpolationMode), interpolationMode, null);
}
}
/// <summary>
/// Draws a bitmap image.
/// </summary>
/// <param name="source">The bitmap image.</param>
/// <param name="opacity">The opacity to draw with.</param>
/// <param name="sourceRect">The rect in the image to draw.</param>
/// <param name="destRect">The rect in the output to draw to.</param>
/// <param name="bitmapInterpolationMode">The bitmap interpolation mode.</param>
public void DrawBitmap(IRef <IBitmapImpl> source, double opacity, Rect sourceRect, Rect destRect, BitmapInterpolationMode bitmapInterpolationMode)
{
using (var d2d = ((BitmapImpl)source.Item).GetDirect2DBitmap(_deviceContext))
{
var interpolationMode = GetInterpolationMode(bitmapInterpolationMode);
// TODO: How to implement CompositeMode here?
_deviceContext.DrawBitmap(
d2d.Value,
destRect.ToSharpDX(),
(float)opacity,
interpolationMode,
sourceRect.ToSharpDX(),
null);
}
}