Direct java.nio.FloatBuffer - how to get one

Question

I need to get a direct FloatBuffer but I don't know how. This is a requirement of a library I'm using.
FloatBuffer fb = FloatBuffer.wrap(new float[] {1.0F, 1.0F, 1.0F, 1.0F});When I give such a buffer to a method I get an exception saying that it's not direct. So how can I get one?
There is a method ByteBuffer.allocateDirect but there is none for FloatBuffer.
Please help.

Answer 1

Unsuprisingly, its all in the Javadoc for java.nio.FloatBuffer
Like a byte buffer, a float buffer is either direct or non-direct. A float buffer created via the wrap methods of this class will be non-direct. A float buffer created as a view of a byte buffer will be direct if, and only if, the byte buffer itself is direct. Whether or not a float buffer is direct may be determined by invoking the isDirect method.
You've done a "wrap" - so, from the above, you've got a non-direct buffer.
Presumably you want to get your hands on a Direct ByteBuffer, and then do a "asFloatBuffer" to get a direct float buffer.