half-floats for internal buffers.

[GoogleCodeExporter]

What about half-float colour formats?

I'm not directly suggesting to create a HalfFloatingPointColor mode, but
merely to have something like Format::XBGRffff for internal buffers if
32bit floating point textures are not supported but 16bit floating point
textures are.  This would of course need some two extra conversion routines.

Glenn, what do you think?

Bram.

Original issue reported on code.google.com by bram.deg...@gmail.com on 1 Aug 2007 at 12:53