private void Parse(BinaryReader reader)
{
DDSStruct header = new DDSStruct();
Utils.PixelFormat pixelFormat = Utils.PixelFormat.UNKNOWN;
byte[] data = null;
if (ReadHeader(reader, ref header))
{
_isValid = true;
// patches for stuff
if (header.depth == 0)
{
header.depth = 1;
}
uint blocksize = 0;
pixelFormat = GetFormat(header, ref blocksize);
if (pixelFormat == Utils.PixelFormat.UNKNOWN)
{
throw new InvalidFileHeaderException();
}
data = ReadData(reader, header);
if (data != null)
{
byte[] rawData = Decompressor.Expand(header, data, pixelFormat);
_bitmap = CreateBitmap((int)header.width, (int)header.height, rawData);
}
}
}
private DDSResult CreateBitmap(int width, int height, byte[] rawData)
{
var result = new DDSResult
{
Width = width,
Height = height,
Data = new Color[width * height]
};
for (int i = 0; i < result.Data.Length; i++)
{
// iterate through bytes.
result.Data[i].R = rawData[i * 4 + 0];
result.Data[i].G = rawData[i * 4 + 1];
result.Data[i].B = rawData[i * 4 + 2];
result.Data[i].A = rawData[i * 4 + 3];
if (result.Data[i].R == 255 &&
result.Data[i].G == 0 &&
result.Data[i].B == 0 &&
result.Data[i].A == 255)
{
result.Data[i] = Color.Transparent;
}
}
return(result);
}
