public GraphicsImage(Reader reader, bool dcGFX = false)
{
if (dcGFX)
{
reader.ReadByte();
}
width = (ushort)(reader.ReadByte() << 8);
width |= reader.ReadByte();
height = (ushort)(reader.ReadByte() << 8);
height |= reader.ReadByte();
// Create image
gfxImage = new Bitmap(width, height, PixelFormat.Format8bppIndexed);
ColorPalette cp = gfxImage.Palette;
// Read & Process palette
for (int i = 0; i < 255; i++)
{
GFXpal[i].R = reader.ReadByte();
GFXpal[i].G = reader.ReadByte();
GFXpal[i].B = reader.ReadByte();
cp.Entries[i] = Color.FromArgb(255, GFXpal[i].R, GFXpal[i].G, GFXpal[i].B);
}
gfxImage.Palette = cp;
//Read Image Data
byte[] buf = new byte[3];
bool finished = false;
int cnt = 0;
int loop = 0;
data = new byte[(width * height) + 1];
while (!finished)
{
buf[0] = reader.ReadByte();
if (buf[0] == 255)
{
buf[1] = reader.ReadByte();
if (buf[1] == 255)
{
finished = true;
break;
}
else
{
buf[2] = reader.ReadByte();
loop = 0;
// Repeat value needs to decreased by one to decode
// the graphics from the Dreamcast demo
if (dcGFX)
{
buf[2]--;
}
while (loop < buf[2] && !reader.IsEof)
{
data[cnt++] = buf[1];
loop++;
}
}
}
else
{
data[cnt++] = buf[0];
}
}
Console.Write("file Length = " + reader.BaseStream.Length + " file pos = " + reader.Pos + " data remaining = " + (reader.BaseStream.Length - reader.Pos));
// Write data to image
int pixel = 0;
for (int h = 0; h < height; h++)
{
for (int w = 0; w < width; w++)
{
BitmapData ImgData = gfxImage.LockBits(new Rectangle(new Point(w, h), new Size(1, 1)), System.Drawing.Imaging.ImageLockMode.ReadWrite, System.Drawing.Imaging.PixelFormat.Format8bppIndexed);
byte b = System.Runtime.InteropServices.Marshal.ReadByte(ImgData.Scan0);
System.Runtime.InteropServices.Marshal.WriteByte(ImgData.Scan0, (data[pixel]));
gfxImage.UnlockBits(ImgData);
pixel++;
}
}
reader.Close();
}
public void importFromBitmap(Bitmap IMG)
{
gfxImage = IMG;
width = (ushort)IMG.Width;
height = (ushort)IMG.Height;
}