fixed minor bug in the smooth renderer which forced the span callback to be called with y == -1 and count == 0
diff --git a/src/smooth/ftgrays.c b/src/smooth/ftgrays.c
index 442939f..ccf82a5 100644
--- a/src/smooth/ftgrays.c
+++ b/src/smooth/ftgrays.c
@@ -1320,7 +1320,7 @@
if ( ras.span_y != y || count >= FT_MAX_GRAY_SPANS )
{
- if ( ras.render_span )
+ if ( ras.render_span && count > 0 )
ras.render_span( ras.span_y, count, ras.gray_spans,
ras.render_span_data );
/* ras.render_span( span->y, ras.gray_spans, count ); */