diff options
Diffstat (limited to 'src/quick/items/context2d/qquickcontext2dtexture.cpp')
| -rw-r--r-- | src/quick/items/context2d/qquickcontext2dtexture.cpp | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/src/quick/items/context2d/qquickcontext2dtexture.cpp b/src/quick/items/context2d/qquickcontext2dtexture.cpp index 0ebd1a66c9..3f28620d90 100644 --- a/src/quick/items/context2d/qquickcontext2dtexture.cpp +++ b/src/quick/items/context2d/qquickcontext2dtexture.cpp @@ -165,8 +165,15 @@ void QQuickContext2DTexture::setItem(QQuickCanvasItem* item) bool QQuickContext2DTexture::setCanvasWindow(const QRect& r) { - qreal canvasDevicePixelRatio = (m_item && m_item->window()) ? - m_item->window()->effectiveDevicePixelRatio() : qApp->devicePixelRatio(); + bool ok = false; + static qreal overriddenDevicePixelRatio = + !qEnvironmentVariableIsEmpty("QT_CANVAS_OVERRIDE_DEVICEPIXELRATIO") ? + qgetenv("QT_CANVAS_OVERRIDE_DEVICEPIXELRATIO").toFloat(&ok) : 0.0; + qreal canvasDevicePixelRatio = overriddenDevicePixelRatio; + if (overriddenDevicePixelRatio == 0.0) { + canvasDevicePixelRatio = (m_item && m_item->window()) ? + m_item->window()->effectiveDevicePixelRatio() : qApp->devicePixelRatio(); + } if (!qFuzzyCompare(m_canvasDevicePixelRatio, canvasDevicePixelRatio)) { qCDebug(lcCanvas, "%s device pixel ratio %.1lf -> %.1lf", (m_item->objectName().isEmpty() ? "Canvas" : qPrintable(m_item->objectName())), |