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d2d1: Avoid degenerate line segments. 

Signed-off-by: Henri Verbeet <hverbeet@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Henri Verbeet 2017-02-03 13:37:08 +01:00 committed by Alexandre Julliard
parent b1257da658
commit ac3824fe63
1 changed files with 22 additions and 5 deletions
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27
dlls/d2d1/geometry.c
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@ -498,6 +498,12 @@ static BOOL d2d_figure_insert_vertex(struct d2d_figure *figure, size_t idx, D2D1
static BOOL d2d_figure_add_vertex(struct d2d_figure *figure, D2D1_POINT_2F vertex)
{
size_t last = figure->vertex_count - 1;
if (figure->vertex_count && figure->vertex_types[last] == D2D_VERTEX_TYPE_LINE
&& !memcmp(&figure->vertices[last], &vertex, sizeof(vertex)))
return TRUE;
if (!d2d_array_reserve((void **)&figure->vertices, &figure->vertices_size,
figure->vertex_count + 1, sizeof(*figure->vertices)))
{
@ -1181,7 +1187,7 @@ static BOOL d2d_path_geometry_point_inside(const struct d2d_geometry *geometry,
const D2D1_POINT_2F *p0, *p1;
D2D1_POINT_2F v_p, v_probe;
unsigned int score;
size_t i, j;
size_t i, j, last;
for (i = 0, score = 0; i < geometry->u.path.figure_count; ++i)
{
@ -1191,8 +1197,14 @@ static BOOL d2d_path_geometry_point_inside(const struct d2d_geometry *geometry,
|| probe->y < figure->bounds.top || probe->y > figure->bounds.bottom)
continue;
p0 = &figure->vertices[figure->vertex_count - 1];
for (j = 0; j < figure->vertex_count; ++j)
last = figure->vertex_count - 1;
if (!triangles_only)
{
while (last && figure->vertex_types[last] == D2D_VERTEX_TYPE_NONE)
--last;
}
p0 = &figure->vertices[last];
for (j = 0; j <= last; ++j)
{
if (!triangles_only && figure->vertex_types[j] == D2D_VERTEX_TYPE_NONE)
continue;
@ -1431,6 +1443,10 @@ static BOOL d2d_cdt_insert_segments(struct d2d_cdt *cdt, struct d2d_geometry *ge
{
figure = &geometry->u.path.figures[i];
/* Degenerate figure. */
if (figure->vertex_count < 2)
continue;
p = bsearch(&figure->vertices[figure->vertex_count - 1], cdt->vertices,
geometry->fill.vertex_count, sizeof(*p), d2d_cdt_compare_vertices);
start_vertex = p - cdt->vertices;
@ -1880,8 +1896,9 @@ static void STDMETHODCALLTYPE d2d_geometry_sink_EndFigure(ID2D1GeometrySink *ifa
figure = &geometry->u.path.figures[geometry->u.path.figure_count - 1];
figure->vertex_types[figure->vertex_count - 1] = D2D_VERTEX_TYPE_LINE;
if (figure_end != D2D1_FIGURE_END_CLOSED)
FIXME("Ignoring figure_end %#x.\n", figure_end);
if (figure_end == D2D1_FIGURE_END_CLOSED && !memcmp(&figure->vertices[0],
&figure->vertices[figure->vertex_count - 1], sizeof(*figure->vertices)))
--figure->vertex_count;
geometry->u.path.state = D2D_GEOMETRY_STATE_OPEN;
}