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  1. Qt
  2. QTBUG-42788

Bad QtQuick2 performance on Blackberry

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: P2: Important
    • Resolution: Done
    • Affects Version/s: 5.4.0 Beta
    • Fix Version/s: 5.4.1
    • Labels:
      None
    • Environment:
      Blackberry Z10 10.2.2.1531, NDK 10.2.0.1155 (Windows).
    • Commits:
      dec81ad2dac347ae380f405eb2a58d0a4d0abad4

      Description

      Creating a simple QtQuick2 app with Creator, the render performance is really poor.
      Build from 5.4.0 branch with -release -opengl es2.
      The animation in the example app shows about 3 frame/position update during 1000msecs.
      Setting QML_FIXED_ANIMATION_STEP or QSG_FIXED_ANIMATION_STEP to "no" doesn't improve the situation...

      import QtQuick 2.3
      import QtQuick.Controls 1.3

      ApplicationWindow {
      visible: true
      width: 640
      height: 480

      Rectangle {
      id: redRect
      width: 200
      height: 200
      color: "red"

      MouseArea {
      anchors.fill: parent
      onClicked:

      { if (parent.y > 0) twoAni.start() else oneAni.start() }

      }
      }

      PropertyAnimation

      { id: oneAni target: redRect property: "y" to: 1000 duration: 1000 }

      PropertyAnimation

      { id: twoAni target: redRect property: "y" to: 0 duration: 1000 }

      }

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          Activity

            People

            Assignee:
            rafaelroquetto Rafael Roquetto
            Reporter:
            jsee Jochen Seemann
            Votes:
            1 Vote for this issue
            Watchers:
            8 Start watching this issue

              Dates

              Created:
              Updated:
              Resolved:

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