public static void SavePalettes(Palette[] palettes, string fileName)
{
using (var bmp = new Bitmap(palettes.Length, 256))
{
var bmData = bmp.LockBits(new Rectangle(0, 0, bmp.Width, bmp.Height), ImageLockMode.ReadOnly, PixelFormat.Format32bppArgb);
var stride = bmData.Stride;
var scan0 = bmData.Scan0;
unsafe
{
var p = (byte*)(void*)scan0;
var nOffset = stride - bmp.Width * 4;
for (var y = 0; y < bmp.Height; ++y)
{
for (var x = 0; x < bmp.Width; ++x)
{
p[0] = palettes[x].Colors[y].B;
p[1] = palettes[x].Colors[y].G;
p[2] = palettes[x].Colors[y].R;
p[3] = 255;
p += 4;
}
p += nOffset;
}
}
bmp.UnlockBits(bmData);
bmp.Save(fileName, ImageFormat.Png);
}
}
public static Palette[] LoadPalettes(string fileName)
{
Palette[] ps;
using (var bmp = (Bitmap)Image.FromFile(fileName))
{
ps = new Palette[bmp.Width];
for (var i = 0; i < ps.Length; i++)
ps[i] = new Palette();
var bmData = bmp.LockBits(new Rectangle(0, 0, bmp.Width, bmp.Height), ImageLockMode.ReadOnly, PixelFormat.Format32bppArgb);
var stride = bmData.Stride;
var scan0 = bmData.Scan0;
unsafe
{
var p = (byte*)(void*)scan0;
var nOffset = stride - bmp.Width * 4;
for (var y = 0; y < bmp.Height; ++y)
{
for (var x = 0; x < bmp.Width; ++x)
{
ps[x].Colors[y] = new Color(p[2], p[1], p[0]);
p += 4;
}
p += nOffset;
}
}
bmp.UnlockBits(bmData);
}
return ps;
}
