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  1. Qt
  2. QTBUG-60318

All QtQuick/OpenGL apps show empty screen on Android 4.1

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Details

    • Bug
    • Resolution: Done
    • P1: Critical
    • 5.9.0 RC
    • 5.9.0 Beta 2
    • GUI: OpenGL
    • None
    • Android
    • 5170ed8efbdc28e621e1a84420cb9193e13bdfd7

    Description

      We get a lot of runtime error messages like

      E/libEGL  ( 2698): no more slots for eglGetProcAddress("glGetProgramResourceName")
      E/libEGL  ( 2698): no more slots for eglGetProcAddress("glGetProgramResourceNameARB")
      E/libEGL  ( 2698): no more slots for eglGetProcAddress("glGetProgramResourceNameOES")
      E/libEGL  ( 2698): no more slots for eglGetProcAddress("glGetProgramResourceNameEXT")
      E/libEGL  ( 2698): no more slots for eglGetProcAddress("glGetProgramResourceNameANGLE")
      

      Apparently Android 4.1 has a limited number of slots for eglGetProcAddress, so we cannot call it for every GL function. Here's a discussion that gives more detail: https://github.com/tomaka/glium/issues/1375#issuecomment-168234073

      I could not reproduce this bug on Android 4.2

      This was introduced by https://codereview.qt-project.org/#/c/175052/

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              tvete Paul Olav Tvete
              tvete Paul Olav Tvete
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