diff options
author | Morten Sørvig <morten.sorvig@qt.io> | 2022-06-03 11:22:50 +0200 |
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committer | Morten Sørvig <morten.sorvig@qt.io> | 2022-06-14 21:16:35 +0200 |
commit | d38118c80828eecb3c0192404249c1fad5660792 (patch) | |
tree | ccc37dd1332a060a18a77851b90ee53b91d2a7d1 /src/plugins/platforms/xcb/qxcbbackingstore.cpp | |
parent | 373392eeb4199654e954f70ce919850f090d59bd (diff) |
Make rhiFlush() support custom source DPR
The rhiFlush() implementation currently assumes that
QWindow->devicePixelRatio() is the correct scale factor for
transforming device independent window geometry to source geometry.
However, this assumption does not hold if/when we add support
for drawing to a rounded-up DPR, with a downscale later in
the rhiFlush implementation.
Fix this by adding a sourceDevicePixelRatio argument to rhiFlush(),
which is set to either QWindow::devicePixelRatio() or
QWidget::devicePixelRatio(), depending on from where it is used.
Change deviceRect() and friends in qbackingstoredefualtcompositor.cpp
to be scale*() functions instead which take a scale factor instead
of a QWindow. Update call sites to use srouceDevicePixelRatio
where that makes sense.
Pick-to: 6.4
Change-Id: Idb7b1e2f36816a201e00f0defe100d2dc079cb17
Reviewed-by: Eirik Aavitsland <eirik.aavitsland@qt.io>
Diffstat (limited to 'src/plugins/platforms/xcb/qxcbbackingstore.cpp')
-rw-r--r-- | src/plugins/platforms/xcb/qxcbbackingstore.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/plugins/platforms/xcb/qxcbbackingstore.cpp b/src/plugins/platforms/xcb/qxcbbackingstore.cpp index d6cc0bc2af..f3905dff81 100644 --- a/src/plugins/platforms/xcb/qxcbbackingstore.cpp +++ b/src/plugins/platforms/xcb/qxcbbackingstore.cpp @@ -866,6 +866,7 @@ void QXcbBackingStore::render(xcb_window_t window, const QRegion ®ion, const } QPlatformBackingStore::FlushResult QXcbBackingStore::rhiFlush(QWindow *window, + qreal sourceDevicePixelRatio, const QRegion ®ion, const QPoint &offset, QPlatformTextureList *textures, @@ -876,7 +877,7 @@ QPlatformBackingStore::FlushResult QXcbBackingStore::rhiFlush(QWindow *window, m_image->flushScrolledRegion(true); - QPlatformBackingStore::rhiFlush(window, region, offset, textures, translucentBackground); + QPlatformBackingStore::rhiFlush(window, sourceDevicePixelRatio, region, offset, textures, translucentBackground); QXcbWindow *platformWindow = static_cast<QXcbWindow *>(window->handle()); if (platformWindow->needsSync()) { |