diff options
Diffstat (limited to 'src/plugins/platforms/xcb/qxcbconnection_basic.cpp')
| -rw-r--r-- | src/plugins/platforms/xcb/qxcbconnection_basic.cpp | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/src/plugins/platforms/xcb/qxcbconnection_basic.cpp b/src/plugins/platforms/xcb/qxcbconnection_basic.cpp index af72285135..9a028e5a7e 100644 --- a/src/plugins/platforms/xcb/qxcbconnection_basic.cpp +++ b/src/plugins/platforms/xcb/qxcbconnection_basic.cpp @@ -134,6 +134,7 @@ QXcbBasicConnection::QXcbBasicConnection(const char *displayName) m_setup = xcb_get_setup(m_xcbConnection); m_xcbAtom.initialize(m_xcbConnection); + m_maximumRequestLength = xcb_get_maximum_request_length(m_xcbConnection); xcb_extension_t *extensions[] = { &xcb_shm_id, &xcb_xfixes_id, &xcb_randr_id, &xcb_shape_id, &xcb_sync_id, @@ -178,6 +179,14 @@ QXcbBasicConnection::~QXcbBasicConnection() } } +size_t QXcbBasicConnection::maxRequestDataBytes(size_t requestSize) const +{ + if (hasBigRequest()) + requestSize += 4; // big-request encoding adds 4 bytes + + return m_maximumRequestLength * 4 - requestSize; +} + xcb_atom_t QXcbBasicConnection::internAtom(const char *name) { if (!name || *name == 0) @@ -199,6 +208,11 @@ QByteArray QXcbBasicConnection::atomName(xcb_atom_t atom) return QByteArray(); } +bool QXcbBasicConnection::hasBigRequest() const +{ + return m_maximumRequestLength > m_setup->maximum_request_length; +} + #if QT_CONFIG(xcb_xinput) // Starting from the xcb version 1.9.3 struct xcb_ge_event_t has changed: // - "pad0" became "extension" |