Robert Bragg c11036cd13 spans: Represent spans with floating point precision
Instead of using integers to represent spans we now use floats instead.
This means we are no longer forced to iterate using non-normalized
coordinates so we should hopefully be able to avoid numerous redundant
unnormalize/normalize steps when using the spans api.

Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-11-01 12:03:01 +00:00
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