Alexandre Julliard : gdi32: Return 0 char width for missing glyphs.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: aa90ed6df69791c03219cd1cdcf82da9ec5af4c4
URL:    https://source.winehq.org/git/wine.git/?a=commit;h=aa90ed6df69791c03219cd1cdcf82da9ec5af4c4

Author: Alexandre Julliard <julliard at winehq.org>
Date:   Sat May  2 15:07:28 2020 +0200

gdi32: Return 0 char width for missing glyphs.

Fixes a test failure with Emoji font:
font.c:7147: Test failed: Noto Color Emoji: mismatched widths 2145357798/1.33654768e+008

Signed-off-by: Alexandre Julliard <julliard at winehq.org>

---

 dlls/gdi32/freetype.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/dlls/gdi32/freetype.c b/dlls/gdi32/freetype.c
index 31ad56706a..f68198df8b 100644
--- a/dlls/gdi32/freetype.c
+++ b/dlls/gdi32/freetype.c
@@ -8414,8 +8414,10 @@ static BOOL CDECL freetype_GetCharWidth( PHYSDEV dev, UINT firstChar, UINT lastC
     GDI_CheckNotLock();
     EnterCriticalSection( &freetype_cs );
     for(c = firstChar; c <= lastChar; c++) {
-        get_glyph_outline( physdev->font, c, GGO_METRICS, &gm, &abc, 0, NULL, &identity );
-        buffer[c - firstChar] = abc.abcA + abc.abcB + abc.abcC;
+        if (get_glyph_outline( physdev->font, c, GGO_METRICS, &gm, &abc, 0, NULL, &identity ) == GDI_ERROR)
+            buffer[c - firstChar] = 0;
+        else
+            buffer[c - firstChar] = abc.abcA + abc.abcB + abc.abcC;
     }
     LeaveCriticalSection( &freetype_cs );
     return TRUE;