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gdiplus: Use path_list to path helper in GdipWidenPath.

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The data is the path is invalid and therefore caution has to be
taken when adding data to this path to avoid lengthening it
unnecessarily. Also, don't assume there's a head node on the list
while counting number of nodes.

Signed-off-by: David Kahurani <k.kahurani@gmail.com>
This commit is contained in:
David Kahurani 2024-01-07 00:03:36 +03:00 • committed by Alexandre Julliard
parent ccc3568567
commit 9164cf8fd9
1 changed files with 7 additions and 19 deletions
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26
dlls/gdiplus/graphicspath.c
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@ -95,10 +95,13 @@ static path_list_node_t* add_path_list_node(path_list_node_t *node, REAL x, REAL
/* returns element count */
static INT path_list_count(path_list_node_t *node)
{
INT count = 1;
INT count = 0;
while((node = node->next))
while(node)
{
++count;
node = node->next;
}
return count;
}
@ -2501,7 +2504,7 @@ GpStatus WINGDIPAPI GdipWidenPath(GpPath *path, GpPen *pen, GpMatrix *matrix,
GpPath *flat_path=NULL;
GpStatus status;
path_list_node_t *points=NULL, *last_point=NULL;
int i, subpath_start=0, new_length;
int i, subpath_start=0;
TRACE("(%p,%p,%s,%0.2f)\n", path, pen, debugstr_matrix(matrix), flatness);
@ -2584,23 +2587,8 @@ GpStatus WINGDIPAPI GdipWidenPath(GpPath *path, GpPen *pen, GpMatrix *matrix,
}
}
new_length = path_list_count(points)-1;
if (!lengthen_path(path, new_length))
if (!path_list_to_path(points->next, path))
status = OutOfMemory;
}
if (status == Ok)
{
path->pathdata.Count = new_length;
last_point = points->next;
for (i = 0; i < new_length; i++)
{
path->pathdata.Points[i] = last_point->pt;
path->pathdata.Types[i] = last_point->type;
last_point = last_point->next;
}
path->fill = FillModeWinding;
}