/// <summary>
/// Computes compressed size/raw size, approximate
/// </summary>
/// <remarks>Actually: compressed size = total size of IDAT data , raw size = uncompressed pixel bytes = rows * (bytesPerRow + 1)
/// </remarks>
/// <returns></returns>
public double ComputeCompressionRatio() {
if (CurrentChunkGroup < ChunksList.CHUNK_GROUP_6_END)
throw new PngjException("must be called after End()");
double compressed = (double)datStream.GetCountFlushed();
double raw = (ImgInfo.BytesPerRow + 1) * ImgInfo.Rows;
return compressed / raw;
}
public double ComputeCompressionRatio()
{
if (CurrentChunkGroup < 6)
{
throw new PngjException("must be called after End()");
}
double num = datStream.GetCountFlushed();
double num2 = (ImgInfo.BytesPerRow + 1) * ImgInfo.Rows;
return(num / num2);
}
