How to Fix Clipping of Synthesized Italic Font
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I observe horizontal clipping of individual characters when using italic styles from a TTF, the file is Vera.ttf and is the only font on this system.
System uses linux and minimalegl platform from a QT5.1.2 build for ARM based processor.
When using QT4 no distortion is observed.Below is a picture of the distortion that is happening (the QT5 font is on top and the QT4 font is on bottom).
!http://goo.gl/d0UBKO(QT5 font is on top, QT4 font on bottom)!I am uncertain how to better investigate or improve this situation.
How are italic fonts created inside the QT5 library?
What ideas can I try to correct the clipping?Thank you for your time.
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If the same code produces the correct output in Qt4, and an incorrect one in Qt5, I would submit a "Bug report":https://bugreports.qt-project.org/issues/?jql=
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Thanks for the idea. I have added material to "existing issue":https://bugreports.qt-project.org/browse/QTBUG-28670
If a future reader of this post knows more about font renderring then please post information about source code that applies to the topic of synthesizing font glyphs.