public static void Save(WadFile wad, Stream stream)
{
if (stream == null)
{
throw new ArgumentNullException(nameof(stream));
}
var writer = new BinaryWriter(stream);
var startOffset = stream.Position;
// Version
writer.Write(Version);
writer.Flush();
// Header
// Valid texture count (number of entries)
writer.Write((int)wad.Textures.Count(t => t is Texture));
// TextureLumpInfo offset position
// Will be changed later
var global_textureLumpInfo_offset_position = stream.Position;
writer.Write((int)0);
writer.Flush();
List <int> positions = new List <int>();
List <char[]> names = new List <char[]>();
List <int> sizes = new List <int>();
for (int i = 0; i < wad.Textures.Count; i++)
{
long position = stream.Position - startOffset;
positions.Add((int)position);
TextureByteIndexPaletteWithMipmaps texture;
TextureLumpInfo textureLump;
var t = wad.Textures[i];
if (t is TextureByteIndexPalette)
{
if (t is TextureByteIndexPaletteWithMipmaps)
{
texture = (TextureByteIndexPaletteWithMipmaps)t;
}
else
{
var tbip = (TextureByteIndexPalette)t;
texture = tbip.GenerateMipmaps(TextureLumpInfo.MipmapOffsetsLength);
}
}
else
{
//throw new NotImplementedException("Textures without byte palette are not supported yet");
var tbip = TextureByteIndexPalette.CreateFromBitmap(t);
texture = tbip.GenerateMipmaps(TextureLumpInfo.MipmapOffsetsLength);
}
textureLump = new TextureLumpInfo(texture);
textureLump.Save(writer);
long length = stream.Position - position - startOffset;
sizes.Add((int)length);
}
var global_wadEntry_position = stream.Position;
stream.Position = global_textureLumpInfo_offset_position;
writer.Write((int)(global_wadEntry_position - startOffset));
writer.Flush();
stream.Position = global_wadEntry_position;
for (int i = 0; i < positions.Count; i++)
{
var position = positions[i];
var name = names[i];
var size = sizes[i];
var entry = new WadEntry((int)(position - startOffset), size, WadEntry.TextureType, name);
entry.Write(writer);
}
}
