Doubles

[holyartefact]

Hello

I have many troubles for converting binary to floating points values like e.g. the volume and the pan in the sound resources. How can I do that?

[IsmAvatar]

What programming language are you using?

[holyartefact]

I'm currently studying C# at college. (.NET 2.0)
This is the language I use the most for now...

[IsmAvatar]

I am not fimiliar with C#, but my understanding is that C# is very similar to Java, which I use fluently. Check to see if whatever file reader you are using has a function for reading in doubles. If you are reading in bytes into arrays and then possibly swapping for endianness, then you should be able to convert your byte array into a double.

Read this article and see if it helps you (copy and paste into your browser, I couldn't get the link to work):
www.builderau.com.au/architect/webservices/soa/Read_binary_files_more_efficiently_using_C_/0,339024590,320277904,00.htm

In Java, I have used this code for a little endian 64-bit IEEE Double:

double readDouble(RandomAccessFile f) {
   byte w[] = new byte[8]
   f.readFully(w,0,8);
   long l = (long) (w[7]) << 56 | /* long cast needed or shift done modulo 32 */
   (long) (w[6] & 0xff) << 48 |
   (long) (w[5] & 0xff) << 40 |
   (long) (w[4] & 0xff) << 32 |
   (long) (w[3] & 0xff) << 24 |
   (long) (w[2] & 0xff) << 16 |
   (long) (w[1] & 0xff) << 8 |
   (long) (w[0] & 0xff);
   return Double.longBitsToDouble(l);
}

[holyartefact]

I found a class in C# which automatically makes all the convertions of bits in any type!
Thank you for your help