protected NativeBitmapDataBase(Bitmap bitmap, PixelFormat pixelFormat, ImageLockMode lockMode, Color32 backColor, byte alphaThreshold, Palette?palette)
{
// It must be the same as bitmap format except if LockBits is not supported with the original pixel format (occurs on Linux).
Debug.Assert(bitmap.PixelFormat == pixelFormat || !OSUtils.IsWindows, "Unmatching pixel format");
// If palette is passed it must match with actual palette
Debug.Assert(palette == null || palette.Equals(bitmap.Palette.Entries), "Unmatching palette");
this.bitmap = bitmap;
BackColor = pixelFormat.HasMultiLevelAlpha() ? default : backColor.ToOpaque();
AlphaThreshold = alphaThreshold;
bitmapData = bitmap.LockBits(new Rectangle(Point.Empty, bitmap.Size), lockMode, pixelFormat);
RowSize = Math.Abs(bitmapData.Stride);
if (pixelFormat.IsIndexed())
{
Palette = palette ?? new Palette(bitmap.Palette.Entries, backColor.ToColor(), alphaThreshold);
}
}
