From: Fabian Maurer dark.shadow4@web.de
Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=46655 Signed-off-by: Fabian Maurer dark.shadow4@web.de Signed-off-by: Huw Davies huw@codeweavers.com --- dlls/gdi32/region.c | 3 +-- dlls/gdi32/tests/clipping.c | 39 +++++++++++++++++++++++++++++++++++++ 2 files changed, 40 insertions(+), 2 deletions(-)
diff --git a/dlls/gdi32/region.c b/dlls/gdi32/region.c index cad6428dc9..93238b5a84 100644 --- a/dlls/gdi32/region.c +++ b/dlls/gdi32/region.c @@ -2627,8 +2627,7 @@ HRGN create_polypolygon_region( const POINT *Pts, const INT *Count, INT nbpolygo if (! (pETEs = HeapAlloc( GetProcessHeap(), 0, sizeof(EdgeTableEntry) * total ))) return 0;
- if (!(nb_points = REGION_CreateEdgeTable( Count, nbpolygons, Pts, &ET, pETEs, &SLLBlock, clip_rect ))) - goto done; + nb_points = REGION_CreateEdgeTable( Count, nbpolygons, Pts, &ET, pETEs, &SLLBlock, clip_rect ); if (!(obj = alloc_region( nb_points / 2 ))) goto done;
diff --git a/dlls/gdi32/tests/clipping.c b/dlls/gdi32/tests/clipping.c index 60bd31e8e4..d04ef77ca3 100644 --- a/dlls/gdi32/tests/clipping.c +++ b/dlls/gdi32/tests/clipping.c @@ -533,6 +533,44 @@ static void test_window_dc_clipping(void) DestroyWindow(hwnd); }
+static void test_CreatePolyPolygonRgn(void) +{ + HRGN region; + POINT points_zero[] = { {0, 0}, {0, 0}, {0, 0} }; + POINT points_mixed[] = { {0, 0}, {0, 0}, {0, 0}, {6, 6}, {6, 6}, {6, 6} }; + POINT points_six[] = { {6, 6}, {6, 6}, {6, 6} }; + POINT points_line[] = { {1, 0}, {11, 0}, {21, 0}}; + INT counts_single_poly[] = { 3 }; + INT counts_two_poly[] = { 3, 3 }; + int ret; + RECT rect; + + /* When all polygons are just one point or line, return must not be NULL */ + + region = CreatePolyPolygonRgn(points_zero, counts_single_poly, ARRAY_SIZE(counts_single_poly), ALTERNATE); + ok (region != NULL, "region must not be NULL\n"); + ret = GetRgnBox(region, &rect); + ok (ret == NULLREGION, "Expected NULLREGION, got %d\n", ret); + DeleteObject(region); + + region = CreatePolyPolygonRgn(points_six, counts_single_poly, ARRAY_SIZE(counts_single_poly), ALTERNATE); + ok (region != NULL, "region must not be NULL\n"); + ret = GetRgnBox(region, &rect); + ok (ret == NULLREGION, "Expected NULLREGION, got %d\n", ret); + DeleteObject(region); + + region = CreatePolyPolygonRgn(points_line, counts_single_poly, ARRAY_SIZE(counts_single_poly), ALTERNATE); + ok (region != NULL, "region must not be NULL\n"); + ret = GetRgnBox(region, &rect); + ok (ret == NULLREGION, "Expected NULLREGION, got %d\n", ret); + DeleteObject(region); + + region = CreatePolyPolygonRgn(points_mixed, counts_two_poly, ARRAY_SIZE(counts_two_poly), ALTERNATE); + ok (region != NULL, "region must not be NULL\n"); + ret = GetRgnBox(region, &rect); + ok (ret == NULLREGION, "Expected NULLREGION, got %d\n", ret); + DeleteObject(region); +}
START_TEST(clipping) { @@ -541,4 +579,5 @@ START_TEST(clipping) test_GetClipRgn(); test_memory_dc_clipping(); test_window_dc_clipping(); + test_CreatePolyPolygonRgn(); }