public void ImportImageDataAs8Bit(Bitmap bitmap, IPalette palette, bool isBasePalette, out int difference)
{
difference = 0;
if (bitmap == null)
{
return;
}
BitsPerPixel = 8;
FirstByte = 1;
ImageWidth = bitmap.Width;
ImageHeight = bitmap.Height;
ImageOffset = default;
FrameWidth = (byte)bitmap.Width;
FrameHeight = (byte)bitmap.Height;
ImageHandle = 1;
PaletteHandle = isBasePalette ? 0 : 1;
Memory = 1;
PaletteHandle2 = 1;
ImageData = new byte[bitmap.Width * bitmap.Height];
for (int x = 0; x < ImageWidth; x++)
{
for (int y = 0; y < ImageHeight; y++)
{
Color pixel = bitmap.GetPixel(x, y);
int idata8 = palette.GetClosestIndexFromColor(pixel, out int d);
difference += d;
byte data8 = (byte)(idata8.Clamp(0, byte.MaxValue));
int pos = x + y * ImageWidth;
ImageData[pos] = data8;
}
}
if (!isBasePalette)
{
Palette.Import(palette);
}
}
