private static InteropBitmapFormat CheckFormat(InteropBitmapFormat format)
{
switch (format)
{
case InteropBitmapFormat.Rgb24:
case InteropBitmapFormat.Rgba32:
return(format);
default:
throw new ArgumentException($"Format '{format}' not supported", nameof(format));
}
}
public InteropBitmap(int width, int height, float dpiX, float dpiY, InteropBitmapFormat format)
{
width.AssertGreaterThanZero(nameof(width));
height.AssertGreaterThanZero(nameof(height));
Width = width;
Height = height;
DpiX = dpiX;
DpiY = dpiY;
Format = CheckFormat(format);
Bitmap = new WriteableBitmap(width, height, dpiX, dpiY, format.ToWpf(), null);
}
public static System.Windows.Media.PixelFormat ToWpf(this InteropBitmapFormat format)
{
switch (format)
{
case InteropBitmapFormat.Rgb24:
return(System.Windows.Media.PixelFormats.Bgr24);
case InteropBitmapFormat.Rgba32:
return(System.Windows.Media.PixelFormats.Bgra32);
default:
throw new ArgumentException($"Unknown value '{format}'", nameof(format));
}
}
public static System.Drawing.Imaging.PixelFormat ToGdi(this InteropBitmapFormat format)
{
switch (format)
{
case InteropBitmapFormat.Rgb24:
return(System.Drawing.Imaging.PixelFormat.Format24bppRgb);
case InteropBitmapFormat.Rgba32:
return(System.Drawing.Imaging.PixelFormat.Format32bppRgb);
default:
throw new ArgumentException($"Unknown value '{format}'", nameof(format));
}
}
