diff options
Diffstat (limited to 'src/plugins/platforms/xcb/qxcbconnection.cpp')
-rw-r--r-- | src/plugins/platforms/xcb/qxcbconnection.cpp | 54 |
1 files changed, 48 insertions, 6 deletions
diff --git a/src/plugins/platforms/xcb/qxcbconnection.cpp b/src/plugins/platforms/xcb/qxcbconnection.cpp index 231fe9af3f..f93cfde4a5 100644 --- a/src/plugins/platforms/xcb/qxcbconnection.cpp +++ b/src/plugins/platforms/xcb/qxcbconnection.cpp @@ -60,6 +60,7 @@ #include <xcb/shm.h> #include <xcb/sync.h> #include <xcb/xfixes.h> +#include <xcb/xinerama.h> #ifdef XCB_USE_XLIB #include <X11/Xlib.h> @@ -386,6 +387,7 @@ void QXcbConnection::initializeScreens() xcb_screen_t *xcbScreen = it.data; QXcbVirtualDesktop *virtualDesktop = new QXcbVirtualDesktop(this, xcbScreen, xcbScreenNumber); m_virtualDesktops.append(virtualDesktop); + QList<QPlatformScreen *> siblings; if (has_randr_extension) { xcb_generic_error_t *error = NULL; // RRGetScreenResourcesCurrent is fast but it may return nothing if the @@ -429,7 +431,6 @@ void QXcbConnection::initializeScreens() qWarning("failed to get the primary output of the screen"); free(error); } else { - QList<QPlatformScreen *> siblings; for (int i = 0; i < outputCount; i++) { QScopedPointer<xcb_randr_get_output_info_reply_t, QScopedPointerPodDeleter> output( xcb_randr_get_output_info_reply(xcb_connection(), @@ -471,12 +472,30 @@ void QXcbConnection::initializeScreens() } } } - virtualDesktop->setScreens(siblings); } } } + } else if (has_xinerama_extension) { + // Xinerama is available + xcb_xinerama_query_screens_cookie_t cookie = xcb_xinerama_query_screens(m_connection); + xcb_xinerama_query_screens_reply_t *screens = xcb_xinerama_query_screens_reply(m_connection, + cookie, + Q_NULLPTR); + if (screens) { + xcb_xinerama_screen_info_iterator_t it = xcb_xinerama_query_screens_screen_info_iterator(screens); + while (it.rem) { + xcb_xinerama_screen_info_t *screen_info = it.data; + QXcbScreen *screen = new QXcbScreen(this, virtualDesktop, + XCB_NONE, Q_NULLPTR, + screen_info, it.index); + siblings << screen; + m_screens << screen; + xcb_xinerama_screen_info_next(&it); + } + free(screens); + } } - if (virtualDesktop->screens().isEmpty()) { + if (siblings.isEmpty()) { // If there are no XRandR outputs or XRandR extension is missing, // then create a fake/legacy screen. QXcbScreen *screen = new QXcbScreen(this, virtualDesktop, XCB_NONE, Q_NULLPTR); @@ -486,8 +505,9 @@ void QXcbConnection::initializeScreens() primaryScreen = screen; primaryScreen->setPrimary(true); } - virtualDesktop->addScreen(screen); + siblings << screen; } + virtualDesktop->setScreens(siblings); xcb_screen_next(&it); ++xcbScreenNumber; } // for each xcb screen @@ -529,6 +549,7 @@ QXcbConnection::QXcbConnection(QXcbNativeInterface *nativeInterface, bool canGra , xfixes_first_event(0) , xrandr_first_event(0) , xkb_first_event(0) + , has_xinerama_extension(false) , has_shape_extension(false) , has_randr_extension(false) , has_input_shape(false) @@ -583,7 +604,10 @@ QXcbConnection::QXcbConnection(QXcbNativeInterface *nativeInterface, bool canGra m_time = XCB_CURRENT_TIME; m_netWmUserTime = XCB_CURRENT_TIME; - initializeXRandr(); + if (!qEnvironmentVariableIsSet("QT_XCB_NO_XRANDR")) + initializeXRandr(); + if (!has_randr_extension) + initializeXinerama(); initializeXFixes(); initializeScreens(); @@ -2087,6 +2111,22 @@ void QXcbConnection::initializeXRandr() } } +void QXcbConnection::initializeXinerama() +{ + const xcb_query_extension_reply_t *reply = xcb_get_extension_data(m_connection, &xcb_xinerama_id); + if (!reply || !reply->present) + return; + + xcb_generic_error_t *error = Q_NULLPTR; + xcb_xinerama_is_active_cookie_t xinerama_query_cookie = xcb_xinerama_is_active(m_connection); + xcb_xinerama_is_active_reply_t *xinerama_is_active = xcb_xinerama_is_active_reply(m_connection, + xinerama_query_cookie, + &error); + has_xinerama_extension = xinerama_is_active && !error && xinerama_is_active->state; + free(error); + free(xinerama_is_active); +} + void QXcbConnection::initializeXShape() { const xcb_query_extension_reply_t *xshape_reply = xcb_get_extension_data(m_connection, &xcb_shape_id); @@ -2174,7 +2214,9 @@ void QXcbConnection::initializeXKB() bool QXcbConnection::xi2MouseEvents() const { static bool mouseViaXI2 = !qEnvironmentVariableIsSet("QT_XCB_NO_XI2_MOUSE"); - return mouseViaXI2; + // Don't use XInput2 when Xinerama extension is enabled, + // because it causes problems with multi-monitor setup. + return mouseViaXI2 && !has_xinerama_extension; } #if defined(XCB_USE_XINPUT2) |