public static byte[] bitmapToRawImg(ImageData img, int ID)
{
ImageType t = ImageTypesByID[ID];
int w = (int)img.Width;
int h = (int)img.Height;
List <byte> array = new List <byte>(w * h * (int)t.e);
//w = h = Math.Max(nlpo2(w), nlpo2(h));
uint x = 0, y = 0;
Color c;
int p = gcm(w, 8) >> 3;
if (p == 0)
{
p = 1;
}
if (!BinaryMath.IsPowerOfTwo(p))
{
throw new Exception("NOT POWER OF TWO");
}
int plog = BinaryMath.Log2(p);
for (uint i = 0; i < w * h; i++)
{
d2xy(i.FastMod(64), out x, out y);
uint tile = i >> 6;
x += (uint)tile.FastMod(p) * 8;
y += (uint)tile.FastDiv(plog) * 8;
c = img.GetPixel(x, y);
//if (c.A == 0) c = new Color { A = 0, R = 0xFF, G = 0xFF, B = 0xFF };
if (t.e == Encoding.RGB565)
{
uint val = (uint)((c.R >> 3) & 0x1f) << 11;
val += (uint)(((c.G >> 2) & 0x3f) << 5);
val += (uint)((c.B >> 3) & 0x1f);
array.Add((byte)(val & 0xFF));
array.Add((byte)((val >> 8) & 0xFF));
}
else if (t.e == Encoding.BGR888)
{
array.AddRange(new byte[3] {
c.B, c.G, c.R
});
}
else if (t.e == Encoding.A8)
{
array.Add((byte)c.R);
}
}
return(array.ToArray());
}
public static uint FastDiv(this uint num, int num2)
{
return (uint)BinaryMath.DivideByPowerOf2((int)num, num2);
}
//Binary math is used to make % and / faster
public static ImageData getImage(byte[] data, int ID)
{
ImageType t = ImageTypesByID[ID];
ImageData Image = new ImageData((uint)t.s.x, (uint)t.s.y);
uint x = 0, y = 0;
int p = t.s.x >> 3;
if (p == 0)
{
p = 1;
}
if (!BinaryMath.IsPowerOfTwo(p))
{
throw new Exception("NOT POWER OF TWO");
}
int plog = BinaryMath.Log2(p);
BinaryReader dec_br = new BinaryReader(new MemoryStream(data));
int red, blue, green;
if (t.e == Encoding.RGB565)
{
uint i = 0;
while (dec_br.BaseStream.Position < dec_br.BaseStream.Length)
{
uint pix = dec_br.ReadUInt16();
d2xy(i.FastMod(64), out x, out y);
uint tile = i >> 6;
// Shift Tile Coordinate into Tilemap
x += (uint)tile.FastMod(p) * 8;
y += (uint)tile.FastDiv(plog) * 8;
red = (byte)((pix >> 11) & 0x1f) * 8;
green = (byte)(((pix >> 5) & 0x3f)) * 4;
blue = (byte)((pix) & 0x1f) * 8;
Image.SetPixel(x, y, red, green, blue, 0xFF);
i++;
}
}
else if (t.e == Encoding.BGR888)
{
uint i = 0;
while (dec_br.BaseStream.Position < dec_br.BaseStream.Length)
{
d2xy(i.FastMod(64), out x, out y);
uint tile = i >> 6;
// Shift Tile Coordinate into Tilemap
x += (uint)tile.FastMod(p) * 8;
y += (uint)tile.FastDiv(plog) * 8;
blue = dec_br.ReadByte();
green = dec_br.ReadByte();
red = dec_br.ReadByte();
Image.SetPixel(x, y, red, green, blue, 0xFF);
i++;
}
}
else if (t.e == Encoding.A8)
{
uint i = 0;
while (dec_br.BaseStream.Position < dec_br.BaseStream.Length)
{
d2xy(i.FastMod(64), out x, out y);
uint tile = i >> 6;
// Shift Tile Coordinate into Tilemap
x += (uint)tile.FastMod(p) * 8;
y += (uint)tile.FastDiv(plog) * 8;
byte col = dec_br.ReadByte();
Image.SetPixel(x, y, col, col, col, 0xFF);
i++;
}
}
return(Image);
}
public static uint FastMod(this uint num, int num2)
{
return (uint)BinaryMath.FastMod((int)num, num2);
}
