spans: avoid normalize with normalize_factor of 1

if a normalize factor of 1 is passed then we don't need to normalize the
starting point to find the closest point equivalent to 0.

Reviewed-by: Neil Roberts <neil@linux.intel.com>
This commit is contained in:
Robert Bragg 2011-10-23 20:23:15 +01:00
parent 18fb1ffab5
commit 98dc73a8f7

View File

@ -74,8 +74,6 @@ _cogl_span_iter_begin (CoglSpanIter *iter,
float cover_end,
CoglPipelineWrapMode wrap_mode)
{
float cover_start_normalized;
/* XXX: If CLAMP_TO_EDGE needs to be emulated then it needs to be
* done at a higher level than here... */
_COGL_RETURN_IF_FAIL (wrap_mode == COGL_PIPELINE_WRAP_MODE_REPEAT ||
@ -105,8 +103,13 @@ _cogl_span_iter_begin (CoglSpanIter *iter,
* iteration of any range so we need to relate the start of the range to the
* nearest point equivalent to 0.
*/
cover_start_normalized = cover_start / normalize_factor;
if (normalize_factor != 1.0)
{
float cover_start_normalized = cover_start / normalize_factor;
iter->origin = floorf (cover_start_normalized) * normalize_factor;
}
else
iter->origin = floorf (cover_start);
iter->wrap_mode = wrap_mode;