private static int[] DecodeI8Routine(byte[] I8Data, int Width, int Height)
{
int[] GrayscaleData = new int[I8Data.Length];
for (int i = 0; i < GrayscaleData.Length; i++)
{
GrayscaleData[i] = (I8Data[i] << 24) | (I8Data[i] << 16) | (I8Data[i] << 8) | I8Data[i];
}
return(BlockFormat.Decode(GrayscaleData, Width, Height, 8, 4));
}
private static int[] DecodeIA8Routine(byte[] IA8Data, int Width, int Height)
{
int[] GrayscaleData = new int[IA8Data.Length / 2];
for (int i = 0; i < GrayscaleData.Length; i++)
{
int idx = i * 2;
GrayscaleData[i] = (IA8Data[idx] << 24) | (IA8Data[idx + 1] << 16) | (IA8Data[idx + 1] << 8) | IA8Data[idx + 1];
}
return(BlockFormat.Decode(GrayscaleData, Width, Height, 4, 4));
}
private static int[] DecodeIA4Routine(byte[] IA4Data, int Width, int Height, bool Unswizzle = true)
{
int[] GrayscaleData = new int[IA4Data.Length];
for (int i = 0; i < GrayscaleData.Length; i++)
{
byte LeftPixelValue = (byte)(((IA4Data[i] & 0xF0) | (IA4Data[i] >> 4)) & 0xFF); // Alpha
byte RightPixelValue = (byte)(((IA4Data[i] << 4) | (IA4Data[i] & 0x0F)) & 0xFF);
GrayscaleData[i] = (LeftPixelValue << 24) | (RightPixelValue << 16) | (RightPixelValue << 8) | RightPixelValue;
}
return(Unswizzle ? BlockFormat.Decode(GrayscaleData, Width, Height, 8, 4) : GrayscaleData);
}
private static int[] DecodeI4Routine(byte[] I4Data, int Width, int Height, bool Unswizzle = true)
{
int[] GrayscaleData = new int[I4Data.Length * 2];
for (int i = 0; i < I4Data.Length; i++)
{
byte LeftPixelValue = (byte)((I4Data[i] & 0xF0) | (I4Data[i] >> 4));
byte RightPixelValue = (byte)((I4Data[i] << 4) | (I4Data[i] & 0x0F));
int idx = i * 2;
GrayscaleData[idx] = (0xFF << 24) | (LeftPixelValue << 16) | (LeftPixelValue << 8) | LeftPixelValue;
GrayscaleData[idx + 1] = (0xFF << 24) | (RightPixelValue << 16) | (RightPixelValue << 8) | RightPixelValue;
}
return(Unswizzle ? BlockFormat.Decode(GrayscaleData, Width, Height, 8, 8) : GrayscaleData);
}
private static int[] C8ImageSubroutineDecode(byte[] C8ImageData, ushort[] Palette, int Width, int Height)
{
int[] RGB8Palette = new int[Palette.Length];
for (int i = 0; i < RGB8Palette.Length; i++)
{
RGB8Palette[i] = (int)RGB5A3.ToARGB8(Palette[i]);
}
byte[] UnscrambledData = BlockFormat.Decode(C8ImageData, Width, Height, 8, 4);
int[] ImageData = new int[UnscrambledData.Length];
for (int i = 0; i < ImageData.Length; i++)
{
ImageData[i] = RGB8Palette[UnscrambledData[i]];
}
return(ImageData);
}
public static int[] Decode(ushort[] rgba16Data, int width, int height)
{
var dataOut = new int[width * height];
var position = 0;
rgba16Data = BlockFormat.Decode(rgba16Data, width, height, 4, 4);
for (var y = 0; y < height; y++)
{
for (var x = 0; x < width; x++)
{
dataOut[position] = (int)RGB5A3.ToARGB8(rgba16Data[position]);
position++;
}
}
return(dataOut);
}
private static int[] C4ImageSubroutineDecode(byte[] C4ImageData, ushort[] Palette, int Width, int Height, bool UsesBlocks = true)
{
C4ImageData = Utilities.Utilities.SeparateNibbles(C4ImageData);
int[] RGB8Palette = new int[Palette.Length];
for (int i = 0; i < RGB8Palette.Length; i++)
{
RGB8Palette[i] = (int)RGB5A3.ToARGB8(Palette[i]);
}
byte[] UnscrambledData = UsesBlocks ? BlockFormat.Decode(C4ImageData, Width, Height, 8, 8) : C4ImageData;
int[] ImageData = new int[UnscrambledData.Length];
for (int i = 0; i < ImageData.Length; i++)
{
ImageData[i] = RGB8Palette[UnscrambledData[i]];
}
return(ImageData);
}