private static void SetBitmapDensity <TQuantumType>(IMagickImage <TQuantumType> image, Bitmap bitmap, bool useDpi)
where TQuantumType : struct
{
if (useDpi)
{
var dpi = image.GetDefaultDensity(useDpi ? DensityUnit.PixelsPerInch : DensityUnit.Undefined);
bitmap.SetResolution((float)dpi.X, (float)dpi.Y);
}
}
private static BitmapSource ToBitmapSource <TQuantumType>(this IMagickImage <TQuantumType> self, bool useDensity)
where TQuantumType : struct
{
Throw.IfNull(nameof(self), self);
IMagickImage <TQuantumType> image = self;
var mapping = "RGB";
var format = MediaPixelFormats.Rgb24;
try
{
if (self.ColorSpace == ColorSpace.CMYK && !image.HasAlpha)
{
mapping = "CMYK";
format = MediaPixelFormats.Cmyk32;
}
else
{
if (image.ColorSpace != ColorSpace.sRGB)
{
image = self.Clone();
image.ColorSpace = ColorSpace.sRGB;
}
if (image.HasAlpha)
{
mapping = "BGRA";
format = MediaPixelFormats.Bgra32;
}
}
var step = format.BitsPerPixel / 8;
var stride = image.Width * step;
using (var pixels = image.GetPixelsUnsafe())
{
var bytes = pixels.ToByteArray(mapping);
var dpi = image.GetDefaultDensity(useDensity ? DensityUnit.PixelsPerInch : DensityUnit.Undefined);
return(BitmapSource.Create(image.Width, image.Height, dpi.X, dpi.Y, format, null, bytes, stride));
}
}
finally
{
if (!ReferenceEquals(self, image))
{
image.Dispose();
}
}
}
