IndexedBitmap CreateImage()
{
var image = new IndexedBitmap (100, 100, 8);
var pal = new Palette (Palette.GetEgaPalette ());
// must have at least 256 colors for an 8-bit bitmap
while (pal.Count < 256)
pal.Add (Color.Black);
image.Palette = pal;
var bd = image.Lock ();
unsafe {
int col = 0;
byte* brow = (byte*)bd.Data;
for (int y = 0; y < image.Size.Height; y++) {
byte* b = brow;
for (int x = 0; x < image.Size.Width; x++) {
if (col >= pal.Count)
col = 0;
*b = (byte)col++;
b++;
}
brow += bd.ScanWidth;
}
}
image.Unlock (bd);
return image;
}
IndexedBitmap CreateImage()
{
var image = new IndexedBitmap(100, 100, 8, Generator);
var ega = Palette.GetEgaPalette();
var pal = new Palette(ega);
// must have at least 256 colors for an 8-bit bitmap
while (pal.Count < 256)
pal.Add(Colors.Black);
image.Palette = pal;
using (var bd = image.Lock())
{
unsafe
{
var brow = (byte*)bd.Data;
for (int y = 0; y < image.Size.Height; y++)
{
byte* b = brow;
var col = -y;
for (int x = 0; x < image.Size.Width; x++)
{
while (col < 0)
col = ega.Count + col;
while (col >= ega.Count)
col -= ega.Count;
*b = (byte)col++;
b++;
}
brow += bd.ScanWidth;
}
}
}
return image;
}
