diff options
Diffstat (limited to 'src/plugins/platforms/xcb/qxcbconnection.cpp')
| -rw-r--r-- | src/plugins/platforms/xcb/qxcbconnection.cpp | 780 |
1 files changed, 780 insertions, 0 deletions
diff --git a/src/plugins/platforms/xcb/qxcbconnection.cpp b/src/plugins/platforms/xcb/qxcbconnection.cpp new file mode 100644 index 0000000..80a1624 --- /dev/null +++ b/src/plugins/platforms/xcb/qxcbconnection.cpp @@ -0,0 +1,780 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the plugins of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** GNU Lesser General Public License Usage +** This file may be used under the terms of the GNU Lesser General Public +** License version 2.1 as published by the Free Software Foundation and +** appearing in the file LICENSE.LGPL included in the packaging of this +** file. Please review the following information to ensure the GNU Lesser +** General Public License version 2.1 requirements will be met: +** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain additional +** rights. These rights are described in the Nokia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU General +** Public License version 3.0 as published by the Free Software Foundation +** and appearing in the file LICENSE.GPL included in the packaging of this +** file. Please review the following information to ensure the GNU General +** Public License version 3.0 requirements will be met: +** http://www.gnu.org/copyleft/gpl.html. +** +** Other Usage +** Alternatively, this file may be used in accordance with the terms and +** conditions contained in a signed written agreement between you and Nokia. +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qxcbconnection.h" +#include "qxcbkeyboard.h" +#include "qxcbscreen.h" +#include "qxcbwindow.h" + +#include <QtAlgorithms> +#include <QSocketNotifier> +#include <QtGui/private/qapplication_p.h> +#include <QAbstractEventDispatcher> + +#include <QtCore/QDebug> + +#include <stdio.h> +#include <errno.h> + +#ifdef XCB_USE_XLIB +#include <X11/Xlib.h> +#include <X11/Xlib-xcb.h> +#endif + +#ifdef XCB_USE_EGL //dont pull in eglext prototypes +#include <EGL/egl.h> +#endif + +#ifdef XCB_USE_DRI2 +#include <xcb/dri2.h> +#include <xcb/xfixes.h> +extern "C" { +#include <xf86drm.h> +} +#define MESA_EGL_NO_X11_HEADERS +#define EGL_EGLEXT_PROTOTYPES +#include <EGL/egl.h> +#include <EGL/eglext.h> +#endif + +QXcbConnection::QXcbConnection(const char *displayName) + : m_displayName(displayName ? QByteArray(displayName) : qgetenv("DISPLAY")) +#ifdef XCB_USE_DRI2 + , m_dri2_major(0) + , m_dri2_minor(0) + , m_dri2_support_probed(false) + , m_has_support_for_dri2(false) +#endif +{ + int primaryScreen = 0; + +#ifdef XCB_USE_XLIB + Display *dpy = XOpenDisplay(m_displayName.constData()); + primaryScreen = DefaultScreen(dpy); + m_connection = XGetXCBConnection(dpy); + XSetEventQueueOwner(dpy, XCBOwnsEventQueue); + m_xlib_display = dpy; +#ifdef XCB_USE_EGL + EGLDisplay eglDisplay = eglGetDisplay(dpy); + m_egl_display = eglDisplay; + EGLint major, minor; + eglBindAPI(EGL_OPENGL_ES_API); + m_has_egl = eglInitialize(eglDisplay,&major,&minor); +#endif //XCB_USE_EGL +#else + m_connection = xcb_connect(m_displayName.constData(), &primaryScreen); + +#endif //XCB_USE_XLIB + m_setup = xcb_get_setup(xcb_connection()); + + initializeAllAtoms(); + + xcb_screen_iterator_t it = xcb_setup_roots_iterator(m_setup); + + int screenNumber = 0; + while (it.rem) { + m_screens << new QXcbScreen(this, it.data, screenNumber++); + xcb_screen_next(&it); + } + + m_keyboard = new QXcbKeyboard(this); + +#ifdef XCB_USE_DRI2 + initializeDri2(); +#endif + + QSocketNotifier *notifier = new QSocketNotifier(xcb_get_file_descriptor(xcb_connection()), QSocketNotifier::Read, this); + connect(notifier, SIGNAL(activated(int)), this, SLOT(processXcbEvents())); + + QAbstractEventDispatcher *dispatcher = QAbstractEventDispatcher::instance(qApp->thread()); + connect(dispatcher, SIGNAL(aboutToBlock()), this, SLOT(processXcbEvents())); + + sync(); +} + +QXcbConnection::~QXcbConnection() +{ + qDeleteAll(m_screens); + +#ifdef XCB_USE_XLIB + XCloseDisplay((Display *)m_xlib_display); +#else + xcb_disconnect(xcb_connection()); +#endif + + delete m_keyboard; +} + +QXcbWindow *platformWindowFromId(xcb_window_t id) +{ + QWidget *widget = QWidget::find(id); + if (widget) + return static_cast<QXcbWindow *>(widget->platformWindow()); + return 0; +} + +#define HANDLE_PLATFORM_WINDOW_EVENT(event_t, window, handler) \ +{ \ + event_t *e = (event_t *)event; \ + if (QXcbWindow *platformWindow = platformWindowFromId(e->window)) { \ + QObjectPrivate *d = QObjectPrivate::get(platformWindow->widget()); \ + if (!d->wasDeleted) \ + platformWindow->handler(e); \ + } \ +} \ +break; + +#define HANDLE_KEYBOARD_EVENT(event_t, handler) \ +{ \ + event_t *e = (event_t *)event; \ + if (QXcbWindow *platformWindow = platformWindowFromId(e->event)) \ + m_keyboard->handler(platformWindow->widget(), e); \ +} \ +break; + +//#define XCB_EVENT_DEBUG + +void printXcbEvent(const char *message, xcb_generic_event_t *event) +{ +#ifdef XCB_EVENT_DEBUG +#define PRINT_XCB_EVENT(ev) \ + case ev: \ + printf("%s: %d - %s - sequence: %d\n", message, int(ev), #ev, event->sequence); \ + break; + + switch (event->response_type & ~0x80) { + PRINT_XCB_EVENT(XCB_KEY_PRESS); + PRINT_XCB_EVENT(XCB_KEY_RELEASE); + PRINT_XCB_EVENT(XCB_BUTTON_PRESS); + PRINT_XCB_EVENT(XCB_BUTTON_RELEASE); + PRINT_XCB_EVENT(XCB_MOTION_NOTIFY); + PRINT_XCB_EVENT(XCB_ENTER_NOTIFY); + PRINT_XCB_EVENT(XCB_LEAVE_NOTIFY); + PRINT_XCB_EVENT(XCB_FOCUS_IN); + PRINT_XCB_EVENT(XCB_FOCUS_OUT); + PRINT_XCB_EVENT(XCB_KEYMAP_NOTIFY); + PRINT_XCB_EVENT(XCB_EXPOSE); + PRINT_XCB_EVENT(XCB_GRAPHICS_EXPOSURE); + PRINT_XCB_EVENT(XCB_VISIBILITY_NOTIFY); + PRINT_XCB_EVENT(XCB_CREATE_NOTIFY); + PRINT_XCB_EVENT(XCB_DESTROY_NOTIFY); + PRINT_XCB_EVENT(XCB_UNMAP_NOTIFY); + PRINT_XCB_EVENT(XCB_MAP_NOTIFY); + PRINT_XCB_EVENT(XCB_MAP_REQUEST); + PRINT_XCB_EVENT(XCB_REPARENT_NOTIFY); + PRINT_XCB_EVENT(XCB_CONFIGURE_NOTIFY); + PRINT_XCB_EVENT(XCB_CONFIGURE_REQUEST); + PRINT_XCB_EVENT(XCB_GRAVITY_NOTIFY); + PRINT_XCB_EVENT(XCB_RESIZE_REQUEST); + PRINT_XCB_EVENT(XCB_CIRCULATE_NOTIFY); + PRINT_XCB_EVENT(XCB_CIRCULATE_REQUEST); + PRINT_XCB_EVENT(XCB_PROPERTY_NOTIFY); + PRINT_XCB_EVENT(XCB_SELECTION_CLEAR); + PRINT_XCB_EVENT(XCB_SELECTION_REQUEST); + PRINT_XCB_EVENT(XCB_SELECTION_NOTIFY); + PRINT_XCB_EVENT(XCB_COLORMAP_NOTIFY); + PRINT_XCB_EVENT(XCB_CLIENT_MESSAGE); + PRINT_XCB_EVENT(XCB_MAPPING_NOTIFY); + default: + printf("%s: unknown event - response_type: %d - sequence: %d\n", message, int(event->response_type & ~0x80), int(event->sequence)); + } +#else + Q_UNUSED(message); + Q_UNUSED(event); +#endif +} + +const char *xcb_errors[] = +{ + "Success", + "BadRequest", + "BadValue", + "BadWindow", + "BadPixmap", + "BadAtom", + "BadCursor", + "BadFont", + "BadMatch", + "BadDrawable", + "BadAccess", + "BadAlloc", + "BadColor", + "BadGC", + "BadIDChoice", + "BadName", + "BadLength", + "BadImplementation", + "Unknown" +}; + +const char *xcb_protocol_request_codes[] = +{ + "Null", + "CreateWindow", + "ChangeWindowAttributes", + "GetWindowAttributes", + "DestroyWindow", + "DestroySubwindows", + "ChangeSaveSet", + "ReparentWindow", + "MapWindow", + "MapSubwindows", + "UnmapWindow", + "UnmapSubwindows", + "ConfigureWindow", + "CirculateWindow", + "GetGeometry", + "QueryTree", + "InternAtom", + "GetAtomName", + "ChangeProperty", + "DeleteProperty", + "GetProperty", + "ListProperties", + "SetSelectionOwner", + "GetSelectionOwner", + "ConvertSelection", + "SendEvent", + "GrabPointer", + "UngrabPointer", + "GrabButton", + "UngrabButton", + "ChangeActivePointerGrab", + "GrabKeyboard", + "UngrabKeyboard", + "GrabKey", + "UngrabKey", + "AllowEvents", + "GrabServer", + "UngrabServer", + "QueryPointer", + "GetMotionEvents", + "TranslateCoords", + "WarpPointer", + "SetInputFocus", + "GetInputFocus", + "QueryKeymap", + "OpenFont", + "CloseFont", + "QueryFont", + "QueryTextExtents", + "ListFonts", + "ListFontsWithInfo", + "SetFontPath", + "GetFontPath", + "CreatePixmap", + "FreePixmap", + "CreateGC", + "ChangeGC", + "CopyGC", + "SetDashes", + "SetClipRectangles", + "FreeGC", + "ClearArea", + "CopyArea", + "CopyPlane", + "PolyPoint", + "PolyLine", + "PolySegment", + "PolyRectangle", + "PolyArc", + "FillPoly", + "PolyFillRectangle", + "PolyFillArc", + "PutImage", + "GetImage", + "PolyText8", + "PolyText16", + "ImageText8", + "ImageText16", + "CreateColormap", + "FreeColormap", + "CopyColormapAndFree", + "InstallColormap", + "UninstallColormap", + "ListInstalledColormaps", + "AllocColor", + "AllocNamedColor", + "AllocColorCells", + "AllocColorPlanes", + "FreeColors", + "StoreColors", + "StoreNamedColor", + "QueryColors", + "LookupColor", + "CreateCursor", + "CreateGlyphCursor", + "FreeCursor", + "RecolorCursor", + "QueryBestSize", + "QueryExtension", + "ListExtensions", + "ChangeKeyboardMapping", + "GetKeyboardMapping", + "ChangeKeyboardControl", + "GetKeyboardControl", + "Bell", + "ChangePointerControl", + "GetPointerControl", + "SetScreenSaver", + "GetScreenSaver", + "ChangeHosts", + "ListHosts", + "SetAccessControl", + "SetCloseDownMode", + "KillClient", + "RotateProperties", + "ForceScreenSaver", + "SetPointerMapping", + "GetPointerMapping", + "SetModifierMapping", + "GetModifierMapping", + "Unknown" +}; + +#ifdef Q_XCB_DEBUG +void QXcbConnection::log(const char *file, int line, int sequence) +{ + CallInfo info; + info.sequence = sequence; + info.file = file; + info.line = line; + m_callLog << info; +} +#endif + +void QXcbConnection::handleXcbError(xcb_generic_error_t *error) +{ + uint clamped_error_code = qMin<uint>(error->error_code, (sizeof(xcb_errors) / sizeof(xcb_errors[0])) - 1); + uint clamped_major_code = qMin<uint>(error->major_code, (sizeof(xcb_protocol_request_codes) / sizeof(xcb_protocol_request_codes[0])) - 1); + + printf("XCB error: %d (%s), sequence: %d, resource id: %d, major code: %d (%s), minor code: %d\n", + int(error->error_code), xcb_errors[clamped_error_code], + int(error->sequence), int(error->resource_id), + int(error->major_code), xcb_protocol_request_codes[clamped_major_code], + int(error->minor_code)); +#ifdef Q_XCB_DEBUG + int i = 0; + for (; i < m_callLog.size(); ++i) { + if (m_callLog.at(i).sequence == error->sequence) { + printf("Caused by: %s:%d\n", qPrintable(m_callLog.at(i).file), m_callLog.at(i).line); + break; + } else if (m_callLog.at(i).sequence > error->sequence) { + printf("Caused some time before: %s:%d\n", qPrintable(m_callLog.at(i).file), m_callLog.at(i).line); + if (i > 0) + printf("and after: %s:%d\n", qPrintable(m_callLog.at(i-1).file), m_callLog.at(i-1).line); + break; + } + } + if (i == m_callLog.size() && !m_callLog.isEmpty()) + printf("Caused some time after: %s:%d\n", qPrintable(m_callLog.first().file), m_callLog.first().line); +#endif +} + +void QXcbConnection::processXcbEvents() +{ + while (xcb_generic_event_t *event = xcb_poll_for_event(xcb_connection())) { + bool handled = true; + + uint response_type = event->response_type & ~0x80; + + if (!response_type) { + handleXcbError((xcb_generic_error_t *)event); + continue; + } + +#ifdef Q_XCB_DEBUG + { + int i = 0; + for (; i < m_callLog.size(); ++i) + if (m_callLog.at(i).sequence >= event->sequence) + break; + m_callLog.remove(0, i); + } +#endif + + switch (response_type) { + case XCB_EXPOSE: + HANDLE_PLATFORM_WINDOW_EVENT(xcb_expose_event_t, window, handleExposeEvent); + case XCB_BUTTON_PRESS: + HANDLE_PLATFORM_WINDOW_EVENT(xcb_button_press_event_t, event, handleButtonPressEvent); + case XCB_BUTTON_RELEASE: + HANDLE_PLATFORM_WINDOW_EVENT(xcb_button_release_event_t, event, handleButtonReleaseEvent); + case XCB_MOTION_NOTIFY: + HANDLE_PLATFORM_WINDOW_EVENT(xcb_motion_notify_event_t, event, handleMotionNotifyEvent); + case XCB_CONFIGURE_NOTIFY: + HANDLE_PLATFORM_WINDOW_EVENT(xcb_configure_notify_event_t, event, handleConfigureNotifyEvent); + case XCB_CLIENT_MESSAGE: + HANDLE_PLATFORM_WINDOW_EVENT(xcb_client_message_event_t, window, handleClientMessageEvent); + case XCB_ENTER_NOTIFY: + HANDLE_PLATFORM_WINDOW_EVENT(xcb_enter_notify_event_t, event, handleEnterNotifyEvent); + case XCB_LEAVE_NOTIFY: + HANDLE_PLATFORM_WINDOW_EVENT(xcb_leave_notify_event_t, event, handleLeaveNotifyEvent); + case XCB_FOCUS_IN: + HANDLE_PLATFORM_WINDOW_EVENT(xcb_focus_in_event_t, event, handleFocusInEvent); + case XCB_FOCUS_OUT: + HANDLE_PLATFORM_WINDOW_EVENT(xcb_focus_out_event_t, event, handleFocusOutEvent); + case XCB_KEY_PRESS: + HANDLE_KEYBOARD_EVENT(xcb_key_press_event_t, handleKeyPressEvent); + case XCB_KEY_RELEASE: + HANDLE_KEYBOARD_EVENT(xcb_key_release_event_t, handleKeyReleaseEvent); + case XCB_MAPPING_NOTIFY: + m_keyboard->handleMappingNotifyEvent((xcb_mapping_notify_event_t *)event); + break; + default: + handled = false; + break; + } + if (handled) + printXcbEvent("Handled XCB event", event); + else + printXcbEvent("Unhandled XCB event", event); + } + + xcb_flush(xcb_connection()); +} + +static const char * xcb_atomnames = { + // window-manager <-> client protocols + "WM_PROTOCOLS\0" + "WM_DELETE_WINDOW\0" + "WM_TAKE_FOCUS\0" + "_NET_WM_PING\0" + "_NET_WM_CONTEXT_HELP\0" + "_NET_WM_SYNC_REQUEST\0" + "_NET_WM_SYNC_REQUEST_COUNTER\0" + + // ICCCM window state + "WM_STATE\0" + "WM_CHANGE_STATE\0" + + // Session management + "WM_CLIENT_LEADER\0" + "WM_WINDOW_ROLE\0" + "SM_CLIENT_ID\0" + + // Clipboard + "CLIPBOARD\0" + "INCR\0" + "TARGETS\0" + "MULTIPLE\0" + "TIMESTAMP\0" + "SAVE_TARGETS\0" + "CLIP_TEMPORARY\0" + "_QT_SELECTION\0" + "_QT_CLIPBOARD_SENTINEL\0" + "_QT_SELECTION_SENTINEL\0" + "CLIPBOARD_MANAGER\0" + + "RESOURCE_MANAGER\0" + + "_XSETROOT_ID\0" + + "_QT_SCROLL_DONE\0" + "_QT_INPUT_ENCODING\0" + + "_MOTIF_WM_HINTS\0" + + "DTWM_IS_RUNNING\0" + "ENLIGHTENMENT_DESKTOP\0" + "_DT_SAVE_MODE\0" + "_SGI_DESKS_MANAGER\0" + + // EWMH (aka NETWM) + "_NET_SUPPORTED\0" + "_NET_VIRTUAL_ROOTS\0" + "_NET_WORKAREA\0" + + "_NET_MOVERESIZE_WINDOW\0" + "_NET_WM_MOVERESIZE\0" + + "_NET_WM_NAME\0" + "_NET_WM_ICON_NAME\0" + "_NET_WM_ICON\0" + + "_NET_WM_PID\0" + + "_NET_WM_WINDOW_OPACITY\0" + + "_NET_WM_STATE\0" + "_NET_WM_STATE_ABOVE\0" + "_NET_WM_STATE_BELOW\0" + "_NET_WM_STATE_FULLSCREEN\0" + "_NET_WM_STATE_MAXIMIZED_HORZ\0" + "_NET_WM_STATE_MAXIMIZED_VERT\0" + "_NET_WM_STATE_MODAL\0" + "_NET_WM_STATE_STAYS_ON_TOP\0" + "_NET_WM_STATE_DEMANDS_ATTENTION\0" + + "_NET_WM_USER_TIME\0" + "_NET_WM_USER_TIME_WINDOW\0" + "_NET_WM_FULL_PLACEMENT\0" + + "_NET_WM_WINDOW_TYPE\0" + "_NET_WM_WINDOW_TYPE_DESKTOP\0" + "_NET_WM_WINDOW_TYPE_DOCK\0" + "_NET_WM_WINDOW_TYPE_TOOLBAR\0" + "_NET_WM_WINDOW_TYPE_MENU\0" + "_NET_WM_WINDOW_TYPE_UTILITY\0" + "_NET_WM_WINDOW_TYPE_SPLASH\0" + "_NET_WM_WINDOW_TYPE_DIALOG\0" + "_NET_WM_WINDOW_TYPE_DROPDOWN_MENU\0" + "_NET_WM_WINDOW_TYPE_POPUP_MENU\0" + "_NET_WM_WINDOW_TYPE_TOOLTIP\0" + "_NET_WM_WINDOW_TYPE_NOTIFICATION\0" + "_NET_WM_WINDOW_TYPE_COMBO\0" + "_NET_WM_WINDOW_TYPE_DND\0" + "_NET_WM_WINDOW_TYPE_NORMAL\0" + "_KDE_NET_WM_WINDOW_TYPE_OVERRIDE\0" + + "_KDE_NET_WM_FRAME_STRUT\0" + + "_NET_STARTUP_INFO\0" + "_NET_STARTUP_INFO_BEGIN\0" + + "_NET_SUPPORTING_WM_CHECK\0" + + "_NET_WM_CM_S0\0" + + "_NET_SYSTEM_TRAY_VISUAL\0" + + "_NET_ACTIVE_WINDOW\0" + + // Property formats + "COMPOUND_TEXT\0" + "TEXT\0" + "UTF8_STRING\0" + + // xdnd + "XdndEnter\0" + "XdndPosition\0" + "XdndStatus\0" + "XdndLeave\0" + "XdndDrop\0" + "XdndFinished\0" + "XdndTypeList\0" + "XdndActionList\0" + + "XdndSelection\0" + + "XdndAware\0" + "XdndProxy\0" + + "XdndActionCopy\0" + "XdndActionLink\0" + "XdndActionMove\0" + "XdndActionPrivate\0" + + // Motif DND + "_MOTIF_DRAG_AND_DROP_MESSAGE\0" + "_MOTIF_DRAG_INITIATOR_INFO\0" + "_MOTIF_DRAG_RECEIVER_INFO\0" + "_MOTIF_DRAG_WINDOW\0" + "_MOTIF_DRAG_TARGETS\0" + + "XmTRANSFER_SUCCESS\0" + "XmTRANSFER_FAILURE\0" + + // Xkb + "_XKB_RULES_NAMES\0" + + // XEMBED + "_XEMBED\0" + "_XEMBED_INFO\0" + + // Wacom old. (before version 0.10) + "Wacom Stylus\0" + "Wacom Cursor\0" + "Wacom Eraser\0" + + // Tablet + "STYLUS\0" + "ERASER\0" +}; + +xcb_atom_t QXcbConnection::atom(QXcbAtom::Atom atom) +{ + return m_allAtoms[atom]; +} + +void QXcbConnection::initializeAllAtoms() { + const char *names[QXcbAtom::NAtoms]; + const char *ptr = xcb_atomnames; + + int i = 0; + while (*ptr) { + names[i++] = ptr; + while (*ptr) + ++ptr; + ++ptr; + } + + Q_ASSERT(i == QXcbAtom::NPredefinedAtoms); + + QByteArray settings_atom_name("_QT_SETTINGS_TIMESTAMP_"); + settings_atom_name += m_displayName; + names[i++] = settings_atom_name; + + xcb_intern_atom_cookie_t cookies[QXcbAtom::NAtoms]; + + Q_ASSERT(i == QXcbAtom::NAtoms); + for (i = 0; i < QXcbAtom::NAtoms; ++i) + cookies[i] = xcb_intern_atom(xcb_connection(), false, strlen(names[i]), names[i]); + + for (i = 0; i < QXcbAtom::NAtoms; ++i) + m_allAtoms[i] = xcb_intern_atom_reply(xcb_connection(), cookies[i], 0)->atom; +} + +void QXcbConnection::sync() +{ + // from xcb_aux_sync + xcb_get_input_focus_cookie_t cookie = Q_XCB_CALL(xcb_get_input_focus(xcb_connection())); + free(xcb_get_input_focus_reply(xcb_connection(), cookie, 0)); +} + +#if defined(XCB_USE_EGL) +bool QXcbConnection::hasEgl() const +{ + return m_has_egl; +} +#endif // defined(XCB_USE_EGL) + +#ifdef XCB_USE_DRI2 +void QXcbConnection::initializeDri2() +{ + xcb_dri2_connect_cookie_t connect_cookie = xcb_dri2_connect_unchecked (m_connection, + m_screens[0]->root(), + XCB_DRI2_DRIVER_TYPE_DRI); + + xcb_dri2_connect_reply_t *connect = xcb_dri2_connect_reply (m_connection, + connect_cookie, NULL); + + if (! connect || connect->driver_name_length + connect->device_name_length == 0) { + qDebug() << "Failed to connect to dri2"; + return; + } + + m_dri2_device_name = QByteArray(xcb_dri2_connect_device_name (connect), + xcb_dri2_connect_device_name_length (connect)); + delete connect; + + int fd = open(m_dri2_device_name.constData(), O_RDWR); + if (fd < 0) { + qDebug() << "InitializeDri2: Could'nt open device << dri2DeviceName"; + m_dri2_device_name = QByteArray(); + return; + } + + drm_magic_t magic; + if (drmGetMagic(fd, &magic)) { + qDebug() << "Failed to get drmMagic"; + return; + } + + xcb_dri2_authenticate_cookie_t authenticate_cookie = xcb_dri2_authenticate_unchecked(m_connection, + m_screens[0]->root(), magic); + xcb_dri2_authenticate_reply_t *authenticate = xcb_dri2_authenticate_reply(m_connection, + authenticate_cookie, NULL); + if (authenticate == NULL || !authenticate->authenticated) { + fprintf(stderr, "DRI2: failed to authenticate\n"); + free(authenticate); + return; + } + + delete authenticate; + + EGLDisplay display = eglGetDRMDisplayMESA(fd); + if (!display) { + fprintf(stderr, "failed to create display\n"); + return; + } + + m_egl_display = display; + EGLint major,minor; + if (!eglInitialize(display, &major, &minor)) { + fprintf(stderr, "failed to initialize display\n"); + return; + } +} + +bool QXcbConnection::hasSupportForDri2() const +{ + if (!m_dri2_support_probed) { + xcb_generic_error_t *error = 0; + + xcb_prefetch_extension_data (m_connection, &xcb_xfixes_id); + xcb_prefetch_extension_data (m_connection, &xcb_dri2_id); + + xcb_xfixes_query_version_cookie_t xfixes_query_cookie = xcb_xfixes_query_version(m_connection, + XCB_XFIXES_MAJOR_VERSION, + XCB_XFIXES_MINOR_VERSION); + + xcb_dri2_query_version_cookie_t dri2_query_cookie = xcb_dri2_query_version (m_connection, + XCB_DRI2_MAJOR_VERSION, + XCB_DRI2_MINOR_VERSION); + + xcb_xfixes_query_version_reply_t *xfixes_query = xcb_xfixes_query_version_reply (m_connection, + xfixes_query_cookie, &error); + if (!xfixes_query || error || xfixes_query->major_version < 2) { + delete error; + delete xfixes_query; + return false; + } + delete xfixes_query; + + xcb_dri2_query_version_reply_t *dri2_query = xcb_dri2_query_version_reply (m_connection, + dri2_query_cookie, &error); + if (!dri2_query || error) { + delete error; + delete dri2_query; + return false; + } + + QXcbConnection *that = const_cast<QXcbConnection *>(this); + that->m_dri2_major = dri2_query->major_version; + that->m_dri2_minor = dri2_query->minor_version; + + that->m_has_support_for_dri2 = true; + that->m_dri2_support_probed = true; + } + return m_has_support_for_dri2; +} +#endif //XCB_USE_DRI2 |