/// <summary>
/// Converts <see cref="HSD_TOBJ"/> into <see cref="Bitmap"/>
/// </summary>
/// <param name="tobj"></param>
/// <returns></returns>
public static Bitmap ToBitmap(HSD_TOBJ tobj)
{
if (tobj.ImageData == null)
{
return(null);
}
var rgba = tobj.GetDecodedImageData();
return(BitmapTools.BGRAToBitmap(rgba, tobj.ImageData.Width, tobj.ImageData.Height));
}
/// <summary>
///
/// </summary>
/// <param name="path"></param>
/// <returns></returns>
public static Bitmap LoadBitmapFromFile(string path)
{
// check for alpha channel bitmap and manually import it
if (Path.GetExtension(path).ToLower().Equals(".bmp"))
{
using (FileStream stream = new FileStream(path, FileMode.Open))
using (BinaryReader r = new BinaryReader(stream))
{
if (new string(r.ReadChars(2)) == "BM")
{
var fSize = r.ReadUInt32();
r.ReadInt32(); // reserved
var dataOffset = r.ReadUInt32();
var infoSize = r.ReadUInt32();
var width = r.ReadInt32();
var height = r.ReadInt32();
var planes = r.ReadInt16();
var bpp = r.ReadInt16();
// only do this if this image is 32 bpp
if (bpp == 32)
{
var comp = r.ReadInt32();
if (comp != 0)
{
throw new NotSupportedException("Compressed 32 bpp bitmap not supported");
}
var imageSize = r.ReadInt32();
r.BaseStream.Position = dataOffset;
var data = r.ReadBytes(imageSize);
var scan = new byte[data.Length];
for (int w = 0; w < width; w++)
{
for (int h = 0; h < height; h++)
{
var i = w + h * width;
var d = w + (height - 1 - h) * width;
i *= 4;
d *= 4;
scan[i] = data[d];
scan[i + 1] = data[d + 1];
scan[i + 2] = data[d + 2];
scan[i + 3] = data[d + 3];
}
}
return(BitmapTools.BGRAToBitmap(scan, width, height));
}
}
}
}
// otherwise use dotnet's
return(new Bitmap(path));
}
