1 files changed, 9 insertions, 1 deletions
diff --git a/src/gui/painting/qpaintengine_raster.cpp b/src/gui/painting/qpaintengine_raster.cpp
index 5ce94f84ec..96be2b875e 100644
--- a/src/gui/painting/qpaintengine_raster.cpp
+++ b/src/gui/painting/qpaintengine_raster.cpp
@@ -3167,7 +3167,15 @@ bool QRasterPaintEngine::drawCachedGlyphs(int numGlyphs, const glyph_t *glyphs,
     } else
 #endif
     {
-        QFontEngineGlyphCache::Type glyphType = fontEngine->glyphFormat >= 0 ? QFontEngineGlyphCache::Type(fontEngine->glyphFormat) : d->glyphCacheType;
+        QFontEngineGlyphCache::Type glyphType;
+        if (fontEngine->glyphFormat >= 0) {
+            glyphType = QFontEngineGlyphCache::Type(fontEngine->glyphFormat);
+        } else if (s->matrix.type() > QTransform::TxTranslate
+                   && d->glyphCacheType == QFontEngineGlyphCache::Raster_RGBMask) {
+            glyphType = QFontEngineGlyphCache::Raster_A8;
+        } else {
+            glyphType = d->glyphCacheType;
+        }
 
         QImageTextureGlyphCache *cache =
             static_cast<QImageTextureGlyphCache *>(fontEngine->glyphCache(0, glyphType, s->matrix));