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| author | Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com> | 2016-08-22 11:30:00 +0200 |
|---|---|---|
| committer | Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com> | 2016-08-22 11:30:01 +0200 |
| commit | d314819fc02139e05e16c56657898c704f7fb48f (patch) | |
| tree | a61ba968233634948401c8339f9613844de1c2b5 /src/gui/text/qfontengine_ft.cpp | |
| parent | 9f888d2fde9c5413e5519e0914e9b13638760985 (diff) | |
| parent | e0e9e196a72ffe5457034894eaaadc90ed0d34ef (diff) | |
Merge dev into 5.8
Change-Id: I41ee7b50534b01cf042bed8bb8824ba2e5026a29
Diffstat (limited to 'src/gui/text/qfontengine_ft.cpp')
| -rw-r--r-- | src/gui/text/qfontengine_ft.cpp | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/src/gui/text/qfontengine_ft.cpp b/src/gui/text/qfontengine_ft.cpp index ca6d33c7aa..46f5e6c070 100644 --- a/src/gui/text/qfontengine_ft.cpp +++ b/src/gui/text/qfontengine_ft.cpp @@ -1830,7 +1830,7 @@ glyph_metrics_t QFontEngineFT::alphaMapBoundingBox(glyph_t glyph, QFixed subPixe static inline QImage alphaMapFromGlyphData(QFontEngineFT::Glyph *glyph, QFontEngine::GlyphFormat glyphFormat) { - if (glyph == Q_NULLPTR) + if (glyph == Q_NULLPTR || glyph->height == 0 || glyph->width == 0) return QImage(); QImage::Format format = QImage::Format_Invalid; @@ -1878,11 +1878,15 @@ QImage *QFontEngineFT::lockedAlphaMapForGlyph(glyph_t glyphIndex, QFixed subPixe currentlyLockedAlphaMap = alphaMapFromGlyphData(glyph, neededFormat); + const bool glyphHasGeometry = glyph != Q_NULLPTR && glyph->height != 0 && glyph->width != 0; if (!cacheEnabled && glyph != &emptyGlyph) { currentlyLockedAlphaMap = currentlyLockedAlphaMap.copy(); delete glyph; } + if (!glyphHasGeometry) + return Q_NULLPTR; + if (currentlyLockedAlphaMap.isNull()) return QFontEngine::lockedAlphaMapForGlyph(glyphIndex, subPixelPosition, neededFormat, t, offset); |