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  1. Qt
  2. QTBUG-52717

application performance bad on ios device but good in simulator

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: Not Evaluated
    • Resolution: Incomplete
    • Affects Version/s: 5.5.1
    • Fix Version/s: None
    • Component/s: QPA
    • Labels:
      None
    • Environment:
      xcode 7.2, Qt5.5.1 for ios
    • Platform/s:
      iOS/tvOS/watchOS

      Description

      I use opengl with QOpenGLWidget, render yuv data to play video. In the simulator,nothing is bad。when I run it on my iphone device, it is strange to perform fluently when there is only one window but bad in mutile windows。after I check my code,in the function painterGL(),if I disable glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT ),then it work fluently in mutile windows but I have no picture to see。As I am not familiar to quick qml,so I develop with qwidgets。

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            Assignee:
            vestbo Tor Arne Vestbø
            Reporter:
            jalo CHEN LUO
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              Dates

              Created:
              Updated:
              Resolved:

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