Vincent Povirk : gdiplus: Skip drawing lines of text with only empty glyphs .

[Alexandre Julliard]

Module: wine
Branch: master
Commit: ce9de5c4bb1470e0545cbdb2000fff3f9d164687
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=ce9de5c4bb1470e0545cbdb200...

Author: Vincent Povirk <vincent(a)codeweavers.com>
Date:   Fri Sep 20 13:12:45 2013 -0500

gdiplus: Skip drawing lines of text with only empty glyphs.

---

 dlls/gdiplus/graphics.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/dlls/gdiplus/graphics.c b/dlls/gdiplus/graphics.c
index a642bd8..3c4b479 100644
--- a/dlls/gdiplus/graphics.c
+++ b/dlls/gdiplus/graphics.c
@@ -6225,6 +6225,10 @@ static GpStatus SOFTWARE_GdipDrawDriverString(GpGraphics *graphics, GDIPCONST UI
         }
     }
 
+    if (max_glyphsize == 0)
+        /* Nothing to draw. */
+        return Ok;
+
     glyph_mask = GdipAlloc(max_glyphsize);
     text_mask = GdipAlloc((max_x - min_x) * (max_y - min_y));
     text_mask_stride = max_x - min_x;