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xcb: Fix interpretation of the size from RRCrtcChangeNotify 

The size in RRCrtcChangeNotify is a size of the mode and it is
not rotated. At the same time when we call RRGetCrtcInfo, it
returns a rotated size, which is then passed to
QXcbScreen::updateGeometry(const QRect &geom, uint8_t rotation).

So to pass the expected size to QXcbScreen::updateGeometry()
after receiving RRCrtcChangeNotify, we should rotate the size
according the screen rotation.

Change-Id: If5b5b52403b077d3cd64b9a05d938bb9ac00b1e0
Reviewed-by: Daniel Vrátil <daniel.vratil@kdab.com>
Reviewed-by: Laszlo Agocs <laszlo.agocs@theqtcompany.com>
bb10
Alexander Volkov 2016-04-08 18:50:15 +03:00
parent dbe9a8c969
commit d8667fde18
1 changed files with 3 additions and 0 deletions
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3
src/plugins/platforms/xcb/qxcbconnection.cpp
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@ -209,6 +209,9 @@ void QXcbConnection::updateScreens(const xcb_randr_notify_event_t *event)
// CRTC with node mode could mean that output has been disabled, and we'll
// get RRNotifyOutputChange notification for that.
if (screen && crtc.mode) {
if (crtc.rotation == XCB_RANDR_ROTATION_ROTATE_90 ||
crtc.rotation == XCB_RANDR_ROTATION_ROTATE_270)
std::swap(crtc.width, crtc.height);
screen->updateGeometry(QRect(crtc.x, crtc.y, crtc.width, crtc.height), crtc.rotation);
if (screen->mode() != crtc.mode)
screen->updateRefreshRate(crtc.mode);