Avoid crash when getting bearings from fallback font engine

When accessing a fallback engine, we always need to call
ensureEngineAt() to make sure it's loaded.

Change-Id: Ib27e34137cfe8a3dd2b358aef3b3296a4ca52478
Reviewed-by: Jiang Jiang <jiang.jiang@nokia.com>

diff --git a/src/gui/text/qfontengine.cpp b/src/gui/text/qfontengine.cpp
index e757102..1ae50c7 100644 (file)
--- a/src/gui/text/qfontengine.cpp
+++ b/src/gui/text/qfontengine.cpp
@@ -1489,6 +1489,7 @@ glyph_metrics_t QFontEngineMulti::boundingBox(const QGlyphLayout &glyphs)
 void QFontEngineMulti::getGlyphBearings(glyph_t glyph, qreal *leftBearing, qreal *rightBearing)
 {
     int which = highByte(glyph);
+    ensureEngineAt(which);
     engine(which)->getGlyphBearings(stripped(glyph), leftBearing, rightBearing);
 }