protected override void GetUnpalettedTools(ushort version, byte clutFormat, byte depth, int colorsCount, int width, int height, byte[] data, byte[] userData,
out Encoding.ColorCodec imageCodec,
out Filters.ImageFilter imgFilter)
{
switch (depth)
{
case 3: //RGBA32bit 2 planes
imageCodec = ColorCodec.CODEC_32BIT_ARGB;
imgFilter = new ImageFilterComposer {
new GamecubePlanarFilter(), new TileFilter(32, 4, 4, width, height)
};
break;
case 4: //DXT1
imageCodec = new ColorCodecDXT1Gamecube(width, height);
imgFilter = null;
break;
case 0xA: // I8
imageCodec = ColorCodec.CODEC_8BIT_I8;
imgFilter = new TileFilter(8, 8, 4, width, height);
break;
case 0xB: // IA8
imageCodec = ColorCodec.CODEC_16BITBE_IA8;
imgFilter = new TileFilter(16, 4, 4, width, height);
break;
default:
throw new TextureFormatException("Usupported unpalletted image format " + depth);
}
}
public override TextureFormat Open(System.IO.Stream formatData)
{
if (!IsValidFormat(formatData))
{
throw new TextureFormatException("Not a valid TPL Texture!");
}
BinaryReader reader = new BinaryReader(formatData);
reader.BaseStream.Position += 4;
ByteOrder order = ByteOrder.BigEndian;
int texturesCount = (int)reader.ReadUInt32(order);
uint imageTableOffset = reader.ReadUInt32(order);
reader.BaseStream.Position = imageTableOffset;
TPLTexture texture = new TPLTexture();
for (int i = 0; i < texturesCount; i++)
{
TextureFormat segment = null;
//image table
uint imageHeaderOffset = reader.ReadUInt32(order);
uint offsetPaletteHeader = reader.ReadUInt32(order);
long oldPos = reader.BaseStream.Position;
reader.BaseStream.Position = imageHeaderOffset;
int height = reader.ReadUInt16(order);
int width = reader.ReadUInt16(order);
uint format = reader.ReadUInt32(order);
uint imgDataOffset = reader.ReadUInt32(order);
ColorCodec colorCodec = null;
IndexCodec idxCodec = null;
ImageFilter imgFilter = null;
ushort entryCount = 0;
ushort unknown = 0;//this might be a set of flags denoting whether the palette is internal to the tpl image or external.
uint paletteFormat = 0;
uint palDataOffset = 0;
bool isIndexed = false;
int imgDataSize = 0;
int palDataSize = 0;
switch (format)
{
case 0: //I4
colorCodec = ColorCodec.CODEC_4BITBE_I4;
imgFilter = new TileFilter(4, 8, 8, width, height);
imgDataSize = colorCodec.GetBytesNeededForEncode(width, height, imgFilter);
break;
case 1: //I8
colorCodec = ColorCodec.CODEC_8BIT_I8;
imgFilter = new TileFilter(8, 8, 4, width, height);
imgDataSize = colorCodec.GetBytesNeededForEncode(width, height, imgFilter);
break;
case 2: //IA4
colorCodec = ColorCodec.CODEC_8BITBE_IA4;
imgFilter = new TileFilter(8, 8, 4, width, height);
imgDataSize = colorCodec.GetBytesNeededForEncode(width, height, imgFilter);
break;
case 3: //IA8
colorCodec = ColorCodec.CODEC_16BITBE_IA8;
imgFilter = new TileFilter(16, 4, 4, width, height);
imgDataSize = colorCodec.GetBytesNeededForEncode(width, height, imgFilter);
break;
case 4: //RGB565
colorCodec = ColorCodec.CODEC_16BITBE_RGB565;
imgFilter = new TileFilter(16, 4, 4, width, height);
imgDataSize = colorCodec.GetBytesNeededForEncode(width, height, imgFilter);
break;
case 5: //RGB5A3
colorCodec = ColorCodec.CODEC_16BITBE_RGB5A3;
imgFilter = new TileFilter(16, 4, 4, width, height);
imgDataSize = colorCodec.GetBytesNeededForEncode(width, height, imgFilter);
break;
case 6: //RGBA32 2 planes
colorCodec = ColorCodec.CODEC_32BIT_ARGB;
imgFilter = new ImageFilterComposer {
new GamecubePlanarFilter(),
new TileFilter(32, 4, 4, width, height)
};
imgDataSize = colorCodec.GetBytesNeededForEncode(width, height, imgFilter);
break;
case 8: //C4
case 9: //C8
isIndexed = true;
reader.BaseStream.Position = offsetPaletteHeader;
entryCount = reader.ReadUInt16(order);
unknown = reader.ReadUInt16(order);
paletteFormat = reader.ReadUInt32(order);
palDataOffset = reader.ReadUInt32(order);
switch (paletteFormat)
{
case 0:
colorCodec = ColorCodec.CODEC_16BITBE_IA8;
break;
case 1:
colorCodec = ColorCodec.CODEC_16BITBE_RGB565;
break;
case 2:
colorCodec = ColorCodec.CODEC_16BITBE_RGB5A3;
break;
default:
throw new TextureFormatException("Unsupported palette format " + paletteFormat);
}
palDataSize = colorCodec.GetBytesNeededForEncode(entryCount, 1);
if (format == 8)
{
idxCodec = IndexCodec.FromBitPerPixel(4, order);
imgFilter = new TileFilter(4, 8, 8, width, height);
}
else
{
idxCodec = IndexCodec.FromBitPerPixel(8, order);
imgFilter = new TileFilter(8, 8, 4, width, height);
}
imgDataSize = idxCodec.GetBytesNeededForEncode(width, height, imgFilter);
break;
case 0xA: //C14X2
throw new TextureFormatException("C14X2 not implemented yet!");
break;
case 0xE: //DXT1 (aka CMPR)
colorCodec = new ColorCodecDXT1Gamecube(width, height);
imgDataSize = colorCodec.GetBytesNeededForEncode(width, height);
break;
default:
throw new TextureFormatException("Unsupported TPL image format " + format);
}
reader.BaseStream.Position = imgDataOffset;
byte[] imgData = reader.ReadBytes(imgDataSize);
if (isIndexed)
{
reader.BaseStream.Position = palDataOffset;
byte[] palData = reader.ReadBytes(palDataSize);
PalettedTextureFormat.Builder builder = new PalettedTextureFormat.Builder();
segment = builder.SetIndexCodec(idxCodec)
.SetPaletteCodec(colorCodec)
.SetImageFilter(imgFilter)
.Build(imgData, palData, width, height);
}
else
{
GenericTextureFormat.Builder builder = new GenericTextureFormat.Builder();
segment = builder.SetColorCodec(colorCodec)
.SetImageFilter(imgFilter)
.Build(imgData, width, height);
}
segment.FormatSpecificData.Put <uint>(FORMAT_KEY, format)
.Put <uint>(UNKNOWN_KEY, unknown)
.Put <uint>(PALETTEFORMAT_KEY, paletteFormat);
texture.TextureFormats.Add(segment);
reader.BaseStream.Position = oldPos;
}
return(texture);
}
