private void ConvertColors(int[] data, TimImage image, int clutIndex)
{
switch (image.ImageType & 0x3)
{
case 0x00000000:
case 0x00000001:
var clut = GetClut(image, clutIndex);
for (var i = 0; i < data.Length; i++)
{
data[i] = clut[data[i]];
}
break;
case 0x00000002:
for (var i = 0; i < data.Length; i++)
{
data[i] = _colorDecoder.Decode16Bit(data[i]);
}
break;
case 0x00000003:
for (var i = 0; i < data.Length; i++)
{
data[i] = _colorDecoder.Decode24Bit(data[i]);
}
break;
}
}
private int[] GetClut(TimImage image, int clutIndex)
{
switch (image.ImageType & 0x3)
{
case 0x00000000:
case 0x00000001:
return(DecodeClut(image.Cluts[clutIndex]));
default:
return(null);
}
}
public RawBitmap Decode(TimImage image, int clutIndex)
{
var data = DecodeData(image);
ConvertColors(data, image, clutIndex);
return(new RawBitmap
{
Data = data,
Height = image.Height,
Width = data.Length / image.Height
});
}
public static GameImage FromTim(TimFileReader reader)
{
using (DisposableStack insurance = new DisposableStack(3))
{
TimImage timImage = insurance.Add(reader.ReadImage());
short x = timImage.ImageHeader.X;
short y = timImage.ImageHeader.Y;
GLTexture layer = timImage.Layer;
GLTexture palettes = insurance.Add(GLTextureFactory.FromBitmapPalettes(reader.Palettes == null ? null : reader.Palettes.Palettes));
GameImage result = new GameImage(x, y, layer, palettes);
insurance.Clear();
return(result);
}
}
private int[] DecodeData(TimImage image)
{
switch (image.ImageType & 0x3)
{
case 0x00000000:
return(_dataDecoder.Decode4Bit(image.Data, image.Stride * 2, image.Height));
case 0x00000001:
return(_dataDecoder.Decode8Bit(image.Data, image.Stride * 2, image.Height));
case 0x00000002:
return(_dataDecoder.Decode16Bit(image.Data, image.Stride * 2, image.Height));
case 0x00000003:
return(_dataDecoder.Decode24Bit(image.Data, image.Stride * 2, image.Height));
default:
throw new RhythmCodexException($"Unrecognized TIM image type {image.ImageType:X8}.");
}
}
public TimImage Read(Stream stream)
{
var reader = new BinaryReader(stream);
if (reader.ReadInt32() != 0x00000010)
{
throw new RhythmCodexException("Unrecognized TIM image identifier.");
}
var cluts = new List <TimPalette>();
var result = new TimImage
{
ImageType = reader.ReadInt32(),
Cluts = cluts
};
var hasCluts = (result.ImageType & 0x8) != 0;
if (hasCluts)
{
cluts.AddRange(ReadCluts(stream));
}
var bpp = GetBpp(result.ImageType);
var length = reader.ReadInt32();
result.OriginX = reader.ReadInt16();
result.OriginY = reader.ReadInt16();
result.Stride = reader.ReadInt16();
result.Height = reader.ReadInt16();
var padding = length - result.Stride * result.Height * 8 / bpp - 12;
result.Data = reader.ReadBytes(length);
if (padding > 0)
{
reader.ReadBytes(padding);
}
return(result);
}
public IList <RawBitmap> Decode(TimImage image) => Enumerable.Range(0, image.Cluts.Count).Select(i => Decode(image, i)).ToList();
