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  1. Qt
  2. QTBUG-44815

ANGLE bug leads to shader compilation errors, is fixed in upstream

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: P1: Critical
    • Resolution: Done
    • Affects Version/s: 5.4.1
    • Fix Version/s: 5.5.0 Beta
    • Component/s: GUI: OpenGL, QPA: Windows
    • Labels:
      None
    • Environment:
      We've run into this bug on Windows 7 on an older Intel graphics chip (driver version 8.15.10.1995) with a Quick UI and the application attribute AA_UseOpenGLES set to true.
    • Commits:
      a218a25

      Description

      There's a bug in ANGLE that leads to shaders failing to compile (upstream bug report which shows the same symptoms).

      The messages we get are the following:

      QOpenGLShader::link: "Failed to create D3D shaders. "
      shader compilation failed: "Failed to create D3D shaders. "
      QOpenGLShaderProgram::uniformLocation( qt_Matrix ): shader program is not linked
      QOpenGLShaderProgram::uniformLocation( opacity ): shader program is not linked
      QOpenGLShaderProgram::uniformLocation( pixelSize ): shader program is not linked
      QWindowsEGLContext::swapBuffers: eglError: 12302, this: 0x3a076c0 
      QOpenGLShaderProgram: could not create shader program
      QOpenGLShader: could not create shader
      shader compilation failed: ""
      [...]
      

      The bug is fixed in upstream, so it would be great if libGLESv2.dll could be updated in Qt.

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        For Gerrit Dashboard: QTBUG-44815
        # Subject Branch Project Status CR V

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            Assignee:
            andrew.knight Andrew Knight
            Reporter:
            tiwoc Daniel Seither
            Votes:
            1 Vote for this issue
            Watchers:
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              Dates

              Created:
              Updated:
              Resolved:

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