Uploaded image for project: 'Qt'
  1. Qt
  2. QTBUG-123901

addFontToDatabase encounters stack overflow while load some special Chinese fonts

XMLWordPrintable

    • Windows

      It will touch stack overflow crash if meeting special system font like chinese ‘萍方’ fonts under window when font database load system fonts.

       

      steps to reproduce

      1. unzip the attached files “PingFangFonts.zip" to c:\windows\fonts

      2. run any simple demo, create qml componet control to loading system fonts

       

      We'll get the output like below if we enable QtDebug.

      15:02:25.243 [11064]: [DEBUG] QtDebugMsg: "addFontToDatabase 萍方-简 128 TTF=0 DEVICE scalable=1 Size=65535 Style=0 Weight=50 stretch=100" 
15:02:25.244 [11064]: [DEBUG] QtDebugMsg: "PingFang SC" 
15:02:25.244 [11064]: [DEBUG] QtDebugMsg: "addFontToDatabase 萍方-简 134 TTF=1 TRUETYPE scalable=1 Size=65535 Style=0 Weight=57 stretch=100" 
15:02:25.246 [11064]: [DEBUG] QtDebugMsg: "蘋方-簡" 
15:02:25.246 [11064]: [DEBUG] QtDebugMsg: "addFontToDatabase 萍方-简 128 TTF=0 DEVICE scalable=1 Size=65535 Style=0 Weight=50 stretch=100" 
15:02:25.248 [11064]: [DEBUG] QtDebugMsg: "PingFang SC" 
15:02:25.249 [11064]: [DEBUG] QtDebugMsg: "addFontToDatabase 萍方-简 134 TTF=1 TRUETYPE scalable=1 Size=65535 Style=0 Weight=57 stretch=100" 
15:02:25.250 [11064]: [DEBUG] QtDebugMsg: "蘋方-簡" 
15:02:25.250 [11064]: [DEBUG] QtDebugMsg: "addFontToDatabase 萍方-简 128 TTF=0 DEVICE scalable=1 Size=65535 Style=0 Weight=50 stretch=100" 
15:02:25.252 [11064]: [DEBUG] QtDebugMsg: "PingFang SC" 
15:02:25.252 [11064]: [DEBUG] QtDebugMsg: "addFontToDatabase 萍方-简 134 TTF=1 TRUETYPE scalable=1 Size=65535 Style=0 Weight=57 stretch=100" 
15:02:25.254 [11064]: [DEBUG] QtDebugMsg: "蘋方-簡" 
15:02:25.254 [11064]: [DEBUG] QtDebugMsg: "addFontToDatabase 萍方-简 128 TTF=0 DEVICE scalable=1 Size=65535 Style=0 Weight=50 stretch=100" 
15:02:25.256 [11064]: [DEBUG] QtDebugMsg: "PingFang SC" 
15:02:25.256 [11064]: [DEBUG] QtDebugMsg: "addFontToDatabase 萍方-简 134 TTF=1 TRUETYPE scalable=1 Size=65535 Style=0 Weight=57 stretch=100" 
15:02:25.258 [11064]: [DEBUG] QtDebugMsg: "蘋方-簡" 
15:02:25.258 [11064]: [DEBUG] QtDebugMsg: "addFontToDatabase 萍方-简 128 TTF=0 DEVICE scalable=1 Size=65535 Style=0 Weight=50 stretch=100" 
15:02:25.260 [11064]: [DEBUG] QtDebugMsg: "PingFang SC" 
15:02:25.260 [11064]: [DEBUG] QtDebugMsg: "addFontToDatabase 萍方-简 134 TTF=1 TRUETYPE scalable=1 Size=65535 Style=0 Weight=57 stretch=100" 
15:02:25.262 [11064]: [DEBUG] QtDebugMsg: "蘋方-簡" 
15:02:25.262 [11064]: [DEBUG] QtDebugMsg: "addFontToDatabase 萍方-简 128 TTF=0 DEVICE scalable=1 Size=65535 Style=0 Weight=50 stretch=100" 
15:02:25.264 [11064]: [DEBUG] QtDebugMsg: "PingFang SC" 
15:02:25.264 [11064]: [DEBUG] QtDebugMsg: "addFontToDatabase 萍方-简 134 TTF=1 TRUETYPE scalable=1 Size=65535 Style=0 Weight=57 stretch=100" 
15:02:25.266 [11064]: [DEBUG] QtDebugMsg: "蘋方-簡" 
15:02:25.266 [11064]: [DEBUG] QtDebugMsg: "addFontToDatabase 萍方-简 128 TTF=0 DEVICE scalable=1 Size=65535 Style=0 Weight=50 stretch=100" 

        1. PingFangFonts.zip
          21.78 MB
        No reviews matched the request. Check your Options in the drop-down menu of this sections header.

            esabraha Eskil Abrahamsen Blomfeldt
            shengyuan IT QT01
            Votes:
            1 Vote for this issue
            Watchers:
            3 Start watching this issue

              Created:
              Updated:
              Resolved:

                There are no open Gerrit changes