void EnsurePow2(ref Bitmap bmp)
{
int width = Utils.NextPowerOf2(bmp.Width);
int height = Utils.NextPowerOf2(bmp.Height);
if (width == bmp.Width && height == bmp.Height)
{
return;
}
Bitmap scaled = Platform.CreateBmp(width, height);
using (FastBitmap src = new FastBitmap(bmp, true, true))
using (FastBitmap dst = new FastBitmap(scaled, true, false))
{
for (int y = 0; y < src.Height; y++)
{
FastBitmap.CopyRow(y, y, src, dst, src.Width);
}
}
uScale = (float)bmp.Width / width;
vScale = (float)bmp.Height / height;
bmp.Dispose();
bmp = scaled;
}
