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Merge pull request #20987 from zcx-xxx:master

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* Update drawing.cpp

optimize FillEdgeCollection function

* Update drawing.cpp

optimize FillEdgeCollection，remove sort_flag
This commit is contained in:
zcx
2021-11-19 23:57:07 +08:00
committed by GitHub
parent 091461cece
commit f5de714451
1 changed files with 6 additions and 5 deletions
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modules/imgproc/src/drawing.cpp
+6 -5
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@@ -1369,7 +1369,6 @@ FillEdgeCollection( Mat& img, std::vector<PolyEdge>& edges, const void* color )
for( y = e->y0; y < y_max; y++ )
{
PolyEdge *last, *prelast, *keep_prelast;
int sort_flag = 0;
int draw = 0;
int clipline = y < 0;
@@ -1444,6 +1443,7 @@ FillEdgeCollection( Mat& img, std::vector<PolyEdge>& edges, const void* color )
{
prelast = &tmp;
last = tmp.next;
PolyEdge *last_exchange = 0;
while( last != keep_prelast && last->next != 0 )
{
@@ -1456,7 +1456,7 @@ FillEdgeCollection( Mat& img, std::vector<PolyEdge>& edges, const void* color )
last->next = te->next;
te->next = last;
prelast = te;
sort_flag = 1;
last_exchange = prelast;
}
else
{
@@ -1464,9 +1464,10 @@ FillEdgeCollection( Mat& img, std::vector<PolyEdge>& edges, const void* color )
last = te;
}
}
keep_prelast = prelast;
}
while( sort_flag && keep_prelast != tmp.next && keep_prelast != &tmp );
if (last_exchange == NULL)
break;
keep_prelast = last_exchange;
} while( keep_prelast != tmp.next && keep_prelast != &tmp );
}
}