public static void Write(BinaryWriter bw, bool writePalette, MipTexture texture)
{
bw.WriteFixedLengthString(Encoding.ASCII, NameLength, texture.Name);
bw.Write((uint)texture.Width);
bw.Write((uint)texture.Height);
if (texture.NumMips == 0)
{
bw.Write((uint)0);
bw.Write((uint)0);
bw.Write((uint)0);
bw.Write((uint)0);
bw.Write((ushort)0);
return;
}
uint currentOffset = NameLength + sizeof(uint) * 2 + sizeof(uint) * 4;
for (int i = 0; i < 4; i++)
{
bw.Write((uint)currentOffset);
currentOffset += (uint)texture.MipData[i].Length;
}
for (int i = 0; i < 4; i++)
{
bw.Write((byte[])texture.MipData[i]);
}
if (writePalette)
{
bw.Write((ushort)(texture.Palette.Length / 3));
bw.Write((byte[])texture.Palette);
}
}
public static MipTexture Read(BinaryReader br, bool readPalette)
{
long position = br.BaseStream.Position;
MipTexture texture = new MipTexture();
char[] name = br.ReadChars(NameLength);
int len = Array.IndexOf(name, '\0');
texture.Name = new string(name, 0, len < 0 ? name.Length : len);
texture.Width = br.ReadUInt32();
texture.Height = br.ReadUInt32();
uint[] offsets = new[] { br.ReadUInt32(), br.ReadUInt32(), br.ReadUInt32(), br.ReadUInt32() };
if (offsets[0] == 0)
{
texture.NumMips = 0;
texture.MipData = new byte[0][];
texture.Palette = readPalette ? QuakePalette.Data : new byte[0];
return(texture);
}
texture.NumMips = 4;
texture.MipData = new byte[4][];
int w = (int)texture.Width, h = (int)texture.Height;
for (int i = 0; i < 4; i++)
{
br.BaseStream.Seek(position + offsets[i], SeekOrigin.Begin);
texture.MipData[i] = br.ReadBytes(w * h);
w /= 2;
h /= 2;
}
if (readPalette)
{
ushort paletteSize = br.ReadUInt16();
texture.Palette = br.ReadBytes(paletteSize * 3);
}
else
{
texture.Palette = QuakePalette.Data;
}
return(texture);
}
