Aliasing occurs at the image boundary if add Scale Animator to nine-patch image

Aliasing occurs at the image boundary if add Scale Animator to nine-patch image. as I know, the same issue occurs in all Qt versions.

• Test Codes

  import QtQuick
  import QtQuick.Controls.Imagine
  import QtQuick.Controls.Imagine.impl
  
  Window {
      width: 1920
      height: 1080
      visible: true
      title: qsTr("Hello World")
      color: "black"
  
      Row {
          spacing: 100
          anchors.centerIn: parent
  
          Column {
              id: layout
              spacing: 30
  
              NinePatchImage {
                  id: widget
                  width: 321
                  height: 400
                  source: "file:///home/jongho/ninePatchTest/card.9.png"
              }
  
              ScaleAnimator {
                   id: widgetScaleAnim
                   target: widget
                   from: 1
                   to: 1.1
                   duration: 5000
                   easing.type: Easing.InOutQuint
               }
  
               ParallelAnimation {
                    id: propertyAnim
                    NumberAnimation { target: widget; property: "width"; to: 353; duration: 5000; easing.type: Easing.InOutQuint }
                    NumberAnimation { target: widget; property: "height"; to: 440; duration: 5000; easing.type: Easing.InOutQuint }
                }
  
          }
  
          Column {
              id: layout2
              spacing: 30
  
              Button {
                  width: 400
                  height: 115
                  text: "RunScaleAnimator"
                  font.pixelSize: 32
                  onClicked: {
                      widgetScaleAnim.from = 1
                      widgetScaleAnim.to = 1.1
                      widgetScaleAnim.running = true
                  }
              }
  
              Button {
                  width: 400
                  height: 115
                  text: "RestoreScaleAnimator"
                  font.pixelSize: 32
                  onClicked: {
                      widgetScaleAnim.running = false
                      widgetScaleAnim.from = 1.1
                      widgetScaleAnim.to = 1
                      widgetScaleAnim.running = true
                  }
              }
  
  
              Button {
                  width: 400
                  height: 115
                  text: "RunPropertyAnimator"
                  font.pixelSize: 32
                  onClicked: {
                      propertyAnim.running = true
                  }
              }
  
              Button {
                  width: 400
                  height: 115
                  text: "RestorePropertyAnimator"
                  font.pixelSize: 32
                  onClicked: {
                      propertyAnim.running = false
                      widget.width = 321
                      widget.height = 400
                  }
              }
  
          }
      }
  }
  

• Steps to reproduce this issue
  • Press any button on the right. And if you look at the image on the upper left or lower right, you can find that the aliasing appears. refer to below
  • 
• Our solution
  • I solved it by applying a filter in a similar way to borderImage. Please improve the Qt upstream after reviewing it.
    • https://codebrowser.dev/qt5/qtdeclarative/src/quick/items/qquickborderimage.cpp.html#597
  • 0001-Improve-the-aliasing-issue-at-boundary-when-applying.patch

    diff --git a/src/quickcontrols2/imagine/impl/qquickninepatchimage.cpp b/src/quickcontrols2/imagine/impl/qquickninepatchimage.cpp
    index 66404ba4cd..7d82ca8178 100644
    --- a/src/quickcontrols2/imagine/impl/qquickninepatchimage.cpp
    +++ b/src/quickcontrols2/imagine/impl/qquickninepatchimage.cpp
    @@ -463,6 +463,8 @@ QSGNode *QQuickNinePatchImage::updatePaintNode(QSGNode *oldNode, UpdatePaintNode
     
         QSGTexture *texture = window()->createTextureFromImage(image);
         patchNode->initialize(texture, sz * d->devicePixelRatio, image.size(), d->xDivs, d->yDivs, d->devicePixelRatio);
    +    static_cast<QSGTextureMaterial *>(patchNode->material())
    +            ->setFiltering(d->smooth ? QSGTexture::Linear : QSGTexture::Nearest);
         return patchNode;
     }