public static Bitmap GetBitmap(byte[] data, int width, int height, PicaDataType dataType, PicaPixelFormat pixelFormat)
{
var bitmap = new Bitmap(width, height);
var decoder = GetDecoder(dataType, pixelFormat);
var bmpData = bitmap.LockBits(new Rectangle(0, 0, bitmap.Width, bitmap.Height), ImageLockMode.WriteOnly, bitmap.PixelFormat);
var targetData = new byte[bmpData.Height * bmpData.Stride];
Marshal.Copy(bmpData.Scan0, targetData, 0, targetData.Length);
using (BinaryReader reader = new BinaryReader(new MemoryStream(data)))
{
for (int y = 0; y < height; y += 8)
{
for (int x = 0; x < width; x += 8)
{
decoder(reader, targetData, x, y, width, height);
}
}
}
Marshal.Copy(targetData, 0, bmpData.Scan0, targetData.Length);
bitmap.UnlockBits(bmpData);
return(bitmap);
}
public Codec(PicaDataType dataType, PicaPixelFormat pixelFormat, TileDecoderDelegate decoder, TileEncoderDelegate encoder)
{
DataType = dataType;
PixelFormat = pixelFormat;
Decoder = decoder;
Encoder = encoder;
}
public static TileEncoderDelegate GetEncoder(PicaDataType dataType, PicaPixelFormat picaPixelFormat)
{
Codec codec = GetCodec(dataType, picaPixelFormat);
if (codec.Encoder == null)
{
throw new Exception(string.Format("Encoder not found for {0} {1}", dataType, picaPixelFormat));
}
return(codec.Encoder);
}
private static Codec GetCodec(PicaDataType dataType, PicaPixelFormat picaPixelFormat)
{
Codec codec = codecs.FirstOrDefault(x => x.DataType == dataType && x.PixelFormat == picaPixelFormat);
if (codec == null)
{
throw new Exception(string.Format("Codec not found for {0} {1}", dataType, picaPixelFormat));
}
return(codec);
}
public static PixelDataFormat GetPixelDataFormat(PicaDataType dataType, PicaPixelFormat pixelFormat)
{
Tuple <PicaDataType, PicaPixelFormat> tuple = new Tuple <PicaDataType, PicaPixelFormat>(dataType, pixelFormat);
if (!formatMapPica.ContainsKey(tuple))
{
throw new Exception("No matching pixel data format known");
}
return(formatMapPica[tuple]);
}
protected override Bitmap OnGetBitmap(int imageIndex, int paletteIndex)
{
CTXBTexture texture = Textures[imageIndex];
PicaPixelFormat pixelFormat = texture.PixelFormat;
PicaDataType dataType = ((pixelFormat == PicaPixelFormat.ETC1RGB8NativeDMP || pixelFormat == PicaPixelFormat.ETC1AlphaRGB8A4NativeDMP) ? PicaDataType.UnsignedByte : texture.DataType);
ImageBinary imageBinary = new ImageBinary();
imageBinary.Width = texture.Width;
imageBinary.Height = texture.Height;
imageBinary.InputPixelFormat = N3DS.GetPixelDataFormat(dataType, pixelFormat);
imageBinary.InputEndianness = Endian.LittleEndian;
imageBinary.AddInputPixels(pixelData[imageIndex]);
return(imageBinary.GetBitmap(0, 0));
}
public static byte[] GetData(Bitmap bitmap, PicaDataType dataType, PicaPixelFormat pixelFormat)
{
var output = new MemoryStream(32);
var writer = new BinaryWriter(output);
var encoder = GetEncoder(dataType, pixelFormat);
var bmpData = bitmap.LockBits(new Rectangle(0, 0, bitmap.Width, bitmap.Height), ImageLockMode.ReadWrite, bitmap.PixelFormat);
var sourceData = new byte[bmpData.Height * bmpData.Stride];
Marshal.Copy(bmpData.Scan0, sourceData, 0, sourceData.Length);
for (int y = 0; y < bitmap.Height; y += 8)
{
for (int x = 0; x < bitmap.Width; x += 8)
{
encoder(writer, sourceData, x, y, bitmap.Width, bitmap.Height);
}
}
Marshal.Copy(sourceData, 0, bmpData.Scan0, sourceData.Length);
bitmap.UnlockBits(bmpData);
return(output.ToArray());
}
