[PATCH v4 6/6] win32u: Allow tmAveCharWidth to be 0 when tmHeight == 0.

[Tarcísio Ladeia de Oliveira]

From: Tarcísio Ladeia de Oliveira

This follows behavior observed in tests where ppem == 0. As a
consequence, tmMaxCharWidth can also be 0.
---
 dlls/win32u/freetype.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/dlls/win32u/freetype.c b/dlls/win32u/freetype.c
index 26ab8e11cf7..117dc7e0b8e 100644
--- a/dlls/win32u/freetype.c
+++ b/dlls/win32u/freetype.c
@@ -3757,8 +3757,9 @@ static BOOL freetype_set_outline_text_metrics( struct gdi_font *font )
                                            (pHori->Ascender - pHori->Descender))));

TM.tmAveCharWidth = SCALE_X(pOS2->xAvgCharWidth);
-    if (TM.tmAveCharWidth == 0) {
-        TM.tmAveCharWidth = 1; 
+    if(TM.tmAveCharWidth == 0 && TM.tmHeight != 0)
+    {
+        TM.tmAveCharWidth = 1;
     }
     TM.tmMaxCharWidth = SCALE_X(ft_face->bbox.xMax - ft_face->bbox.xMin);
     TM.tmWeight = FW_REGULAR;