Merge branch 'master' of scm.dev.nokia.troll.no:qt/oslo-staging-1 into master-integration

* 'master' of scm.dev.nokia.troll.no:qt/oslo-staging-1:
  trivial: fix typo in comment
  changelog
  docu update for QNX 6.5
  get rid of anacronysm
  massive improvements for the QNX screen driver
  massive improvements for the QNX mouse driver
  massive improvements for the QNX keyboard driver
  disable the Embedded Linux data directory permissions check for QNX
  skip two subtests that are known to fail on QNX
  implement POSIX IPC based QLock, QWSLock and QWSSharedMemory backends
  implement POSIX IPC based QSystemSemaphore and QSharedMemory backends
  add a configure-time check for an IPC support
  make QProcess really work on QNX
  make the kernel attempt to emulate an instruction with a misaligned access
  use RoundRobin scheduler by default on QNX
  a major refactoring of the mkspecs tree for QNX
  buildfix for qmake

16 files changed, 781 insertions, 319 deletions

diff --git a/src/gui/embedded/embedded.pri b/src/gui/embedded/embedded.pri
index 31f0bc6..836c116 100644
--- a/src/gui/embedded/embedded.pri
+++ b/src/gui/embedded/embedded.pri
@@ -117,7 +117,7 @@ embedded {
         contains( gfx-drivers, qnx ) {
                 HEADERS += embedded/qscreenqnx_qws.h
                 SOURCES += embedded/qscreenqnx_qws.cpp
-                LIBS += -lgf
+                LIBS_PRIVATE += -lgf
         }
 
         contains( gfx-drivers, integrityfb ) {
diff --git a/src/gui/embedded/qkbdqnx_qws.cpp b/src/gui/embedded/qkbdqnx_qws.cpp
index 5a8118d..ad76446 100644
--- a/src/gui/embedded/qkbdqnx_qws.cpp
+++ b/src/gui/embedded/qkbdqnx_qws.cpp
@@ -40,16 +40,16 @@
 ****************************************************************************/
 
 #include "qkbdqnx_qws.h"
-#include "QtCore/qsocketnotifier.h"
+
+#include "qplatformdefs.h"
+#include "qsocketnotifier.h"
+#include "private/qcore_unix_p.h"
 #include "QtCore/qdebug.h"
 
 #include <sys/dcmd_input.h>
-#include <photon/keycodes.h>
-
-#include "qplatformdefs.h"
+#include <sys/keycodes.h>
 #include <errno.h>
 
-
 QT_BEGIN_NAMESPACE
 
 /*!
@@ -72,7 +72,7 @@ QT_BEGIN_NAMESPACE
 
     Example invocation from command line: \c{/usr/photon/bin/devi-hid -Pr kbd mouse}
     Note that after running \c{devi-hid}, you will not be able to use the local
-    shell anymore. It is suggested to run the command in a shell scrip, that launches
+    shell anymore. It is suggested to run the command in a shell script, that launches
     a Qt application after invocation of \c{devi-hid}.
 
     To make \l{Qt for Embedded Linux} explicitly choose the qnx keyboard
@@ -100,15 +100,13 @@ QWSQnxKeyboardHandler::QWSQnxKeyboardHandler(const QString &device)
                          QT_OPEN_RDONLY);
     if (keyboardFD == -1) {
         qErrnoWarning(errno, "QWSQnxKeyboardHandler: Unable to open device");
-        return;
-    }
-
-    // create a socket notifier so we'll wake up whenever keyboard input is detected.
-    QSocketNotifier *notifier = new QSocketNotifier(keyboardFD, QSocketNotifier::Read, this);
-    connect(notifier, SIGNAL(activated(int)), SLOT(socketActivated()));
-
-    qDebug() << "QWSQnxKeyboardHandler: connected.";
+    } else {
+        // create a socket notifier so we'll wake up whenever keyboard input is detected.
+        QSocketNotifier *notifier = new QSocketNotifier(keyboardFD, QSocketNotifier::Read, this);
+        connect(notifier, SIGNAL(activated(int)), SLOT(socketActivated()));
 
+        qDebug("QWSQnxKeyboardHandler: connected.");
+    }
 }
 
 /*!
@@ -116,7 +114,16 @@ QWSQnxKeyboardHandler::QWSQnxKeyboardHandler(const QString &device)
  */
 QWSQnxKeyboardHandler::~QWSQnxKeyboardHandler()
 {
-    QT_CLOSE(keyboardFD);
+    if (keyboardFD != -1)
+        QT_CLOSE(keyboardFD);
+}
+
+// similar to PhKeyToMb
+static inline bool key_sym_displayable(unsigned long sym)
+{
+    if (sym >= 0xF000)
+        return sym >= 0xF100 && (sizeof(wchar_t) > 2 || sym < 0x10000);
+    return (sym & ~0x9F) != 0; // exclude 0...0x1F and 0x80...0x9F
 }
 
 /*! \internal
@@ -136,6 +143,11 @@ void QWSQnxKeyboardHandler::socketActivated()
     // the bytes read must be the size of a keyboard packet
     Q_ASSERT(bytesRead == sizeof(_keyboard_packet));
 
+    if (packet.data.flags & KEY_SYM_VALID_EX)
+        packet.data.flags |= KEY_SYM_VALID;
+    else if (!(packet.data.flags & (KEY_SYM_VALID | KEY_CAP_VALID)))
+        return;
+
 #if 0
     qDebug() << "keyboard got scancode"
              << hex << packet.data.modifiers
@@ -145,86 +157,157 @@ void QWSQnxKeyboardHandler::socketActivated()
              << packet.data.key_scan;
 #endif
 
-    // QNX is nice enough to translate the raw keyboard data into a QNX data structure
+    // QNX is nice enough to translate the raw keyboard data into generic format for us.
     // Now we just have to translate it into a format Qt understands.
 
-    // figure out whether it's a press
-    bool isPress = packet.data.key_cap & KEY_DOWN;
-    // figure out whether the key is still pressed and the key event is repeated
-    bool isRepeat = packet.data.key_cap & KEY_REPEAT;
-
-    Qt::Key key = Qt::Key_unknown;
-    int unicode = 0xffff;
-
-    // TODO - this switch is not complete!
-    switch (packet.data.key_scan) {
-    case KEYCODE_SPACE: key = Qt::Key_Space; unicode = 0x20; break;
-    case KEYCODE_F1: key = Qt::Key_F1; break;
-    case KEYCODE_F2: key = Qt::Key_F2; break;
-    case KEYCODE_F3: key = Qt::Key_F3; break;
-    case KEYCODE_F4: key = Qt::Key_F4; break;
-    case KEYCODE_F5: key = Qt::Key_F5; break;
-    case KEYCODE_F6: key = Qt::Key_F6; break;
-    case KEYCODE_F7: key = Qt::Key_F7; break;
-    case KEYCODE_F8: key = Qt::Key_F8; break;
-    case KEYCODE_F9: key = Qt::Key_F9; break;
-    case KEYCODE_F10: key = Qt::Key_F10; break;
-    case KEYCODE_F11: key = Qt::Key_F11; break;
-    case KEYCODE_F12: key = Qt::Key_F12; break;
-    case KEYCODE_BACKSPACE: key = Qt::Key_Backspace; break;
-    case KEYCODE_TAB: key = Qt::Key_Tab; break;
-    case KEYCODE_RETURN: key = Qt::Key_Return; break;
-    case KEYCODE_KP_ENTER: key = Qt::Key_Enter; break;
-    case KEYCODE_UP:
-    case KEYCODE_KP_UP:
-        key = Qt::Key_Up; break;
-    case KEYCODE_DOWN:
-    case KEYCODE_KP_DOWN:
-        key = Qt::Key_Down; break;
-    case KEYCODE_LEFT:
-    case KEYCODE_KP_LEFT:
-        key = Qt::Key_Left; break;
-    case KEYCODE_RIGHT:
-    case KEYCODE_KP_RIGHT:
-        key = Qt::Key_Right; break;
-    case KEYCODE_HOME:
-    case KEYCODE_KP_HOME:
-        key = Qt::Key_Home; break;
-    case KEYCODE_END:
-    case KEYCODE_KP_END:
-        key = Qt::Key_End; break;
-    case KEYCODE_PG_UP:
-    case KEYCODE_KP_PG_UP:
-        key = Qt::Key_PageUp; break;
-    case KEYCODE_PG_DOWN:
-    case KEYCODE_KP_PG_DOWN:
-        key = Qt::Key_PageDown; break;
-    case KEYCODE_INSERT:
-    case KEYCODE_KP_INSERT:
-        key = Qt::Key_Insert; break;
-    case KEYCODE_DELETE:
-    case KEYCODE_KP_DELETE:
-        key = Qt::Key_Delete; break;
-    case KEYCODE_ESCAPE:
-        key = Qt::Key_Escape; break;
-    default: // none of the above, try the key_scan directly
-        unicode = packet.data.key_scan;
-        break;
-    }
-
     // figure out the modifiers that are currently pressed
     Qt::KeyboardModifiers modifiers = Qt::NoModifier;
-    if (packet.data.flags & KEYMOD_SHIFT)
+    if (packet.data.modifiers & KEYMOD_SHIFT)
         modifiers |= Qt::ShiftModifier;
-    if (packet.data.flags & KEYMOD_CTRL)
+    if (packet.data.modifiers & KEYMOD_CTRL)
         modifiers |= Qt::ControlModifier;
-    if (packet.data.flags & KEYMOD_ALT)
+    if (packet.data.modifiers & KEYMOD_ALT)
         modifiers |= Qt::AltModifier;
+    if (packet.data.modifiers & KEYMOD_NUM_LOCK)
+        modifiers |= Qt::KeypadModifier;
+#if 0
+    // special case for AltGr
+    if (packet.data.modifiers & KEYMOD_ALTGR)
+        key = Qt::Key_AltGr;
+#endif
+
+    // figure out whether it's a press
+    bool isPress = packet.data.flags & KEY_DOWN;
+    // figure out whether the key is still pressed and the key event is repeated
+    bool isRepeat = packet.data.flags & KEY_REPEAT;
+
+    int key = Qt::Key_unknown;
+    int unicode = 0;
+
+    if (((packet.data.flags & KEY_SYM_VALID) && key_sym_displayable(unicode = packet.data.key_sym))
+        || ((packet.data.flags & KEY_CAP_VALID) && key_sym_displayable(unicode = packet.data.key_cap))) {
+        if (unicode <= 0x0ff) {
+            if (unicode >= 'a' && unicode <= 'z')
+                key = Qt::Key_A + unicode - 'a';
+            else
+                key = unicode;
+        }
+        // Ctrl<something> or Alt<something> is not a displayable character
+        if (modifiers & (Qt::ControlModifier | Qt::AltModifier))
+            unicode = 0;
+    } else {
+        unicode = 0;
+
+        unsigned long sym = 0;
+        if (packet.data.flags & KEY_SYM_VALID)
+            sym = packet.data.key_sym;
+        else if (packet.data.flags & KEY_CAP_VALID)
+            sym = packet.data.key_cap;
 
-    // if the unicode value is not ascii, we ignore it.
-    // TODO - do a complete mapping between all QNX scan codes and Qt codes
-    if (unicode != 0xffff && !isascii(unicode))
-        return; // unprintable character
+        switch (sym) {
+        case KEYCODE_ESCAPE: key = Qt::Key_Escape; unicode = 27; break;
+        case KEYCODE_TAB: key = Qt::Key_Tab; unicode = 9; break;
+        case KEYCODE_BACK_TAB: key = Qt::Key_Backtab; break;
+        case KEYCODE_BACKSPACE: key = Qt::Key_Backspace; unicode = 127; break;
+        case KEYCODE_RETURN: key = Qt::Key_Return; break;
+        case KEYCODE_KP_ENTER: key = Qt::Key_Enter; break;
+        case KEYCODE_INSERT:
+        case KEYCODE_KP_INSERT:
+            key = Qt::Key_Insert; break;
+        case KEYCODE_KP_DELETE:
+            if (modifiers & Qt::KeypadModifier) {
+                key = Qt::Key_Comma;
+                break;
+            }
+        // fall through
+        case KEYCODE_DELETE:
+            key = Qt::Key_Delete; break;
+        case KEYCODE_PAUSE:
+        case KEYCODE_BREAK:
+            if (modifiers & (Qt::ControlModifier | Qt::AltModifier))
+                return; // sometimes occurs at the middle of a key sequence
+            key = Qt::Key_Pause; break;
+        case KEYCODE_PRINT:
+            if (modifiers & (Qt::ControlModifier | Qt::AltModifier))
+                return; // sometimes occurs at the middle of a key sequence
+            key = Qt::Key_Print; break;
+        case KEYCODE_SYSREQ:
+            key = Qt::Key_SysReq; break;
+        case KEYCODE_HOME:
+        case KEYCODE_KP_HOME:
+            key = Qt::Key_Home; break;
+        case KEYCODE_END:
+        case KEYCODE_KP_END:
+            key = Qt::Key_End; break;
+        case KEYCODE_LEFT:
+        case KEYCODE_KP_LEFT:
+            key = Qt::Key_Left; break;
+        case KEYCODE_UP:
+        case KEYCODE_KP_UP:
+            key = Qt::Key_Up; break;
+        case KEYCODE_RIGHT:
+        case KEYCODE_KP_RIGHT:
+            key = Qt::Key_Right; break;
+        case KEYCODE_DOWN:
+        case KEYCODE_KP_DOWN:
+            key = Qt::Key_Down; break;
+        case KEYCODE_PG_UP:
+        case KEYCODE_KP_PG_UP:
+            key = Qt::Key_PageUp; break;
+        case KEYCODE_PG_DOWN:
+        case KEYCODE_KP_PG_DOWN:
+            key = Qt::Key_PageDown; break;
+
+        case KEYCODE_LEFT_SHIFT:
+        case KEYCODE_RIGHT_SHIFT:
+            key = Qt::Key_Shift; break;
+        case KEYCODE_LEFT_CTRL:
+        case KEYCODE_RIGHT_CTRL:
+            key = Qt::Key_Control; break;
+        case KEYCODE_LEFT_ALT:
+        case KEYCODE_RIGHT_ALT:
+            key = Qt::Key_Alt; break;
+        case KEYCODE_CAPS_LOCK:
+            key = Qt::Key_CapsLock; break;
+        case KEYCODE_NUM_LOCK:
+            key = Qt::Key_NumLock; break;
+        case KEYCODE_SCROLL_LOCK:
+            key = Qt::Key_ScrollLock; break;
+
+        case KEYCODE_F1:
+        case KEYCODE_F2:
+        case KEYCODE_F3:
+        case KEYCODE_F4:
+        case KEYCODE_F5:
+        case KEYCODE_F6:
+        case KEYCODE_F7:
+        case KEYCODE_F8:
+        case KEYCODE_F9:
+        case KEYCODE_F10:
+        case KEYCODE_F11:
+        case KEYCODE_F12:
+            key = Qt::Key_F1 + sym - KEYCODE_F1; break;
+
+        case KEYCODE_MENU: key = Qt::Key_Menu; break;
+        case KEYCODE_LEFT_HYPER: key = Qt::Key_Hyper_L; break;
+        case KEYCODE_RIGHT_HYPER: key = Qt::Key_Hyper_R; break;
+
+        case KEYCODE_KP_PLUS: key = Qt::Key_Plus; break;
+        case KEYCODE_KP_MINUS: key = Qt::Key_Minus; break;
+        case KEYCODE_KP_MULTIPLY: key = Qt::Key_multiply; break;
+        case KEYCODE_KP_DIVIDE: key = Qt::Key_Slash; break;
+        case KEYCODE_KP_FIVE:
+            if (!(modifiers & Qt::KeypadModifier))
+                key = Qt::Key_5;
+            break;
+
+        default: // none of the above
+            break;
+        }
+    }
+
+    if (key == Qt::Key_unknown && unicode == 0)
+        return;
 
     // call processKeyEvent. This is where all the magic happens to insert a
     // key event into Qt's event loop.
diff --git a/src/gui/embedded/qlock.cpp b/src/gui/embedded/qlock.cpp
index ac15431..eaad15c 100644
--- a/src/gui/embedded/qlock.cpp
+++ b/src/gui/embedded/qlock.cpp
@@ -41,7 +41,6 @@
 
 #include "qlock_p.h"
 
-
 #ifdef QT_NO_QWS_MULTIPROCESS
 
 QT_BEGIN_NAMESPACE
@@ -83,7 +82,7 @@ QT_END_NAMESPACE
 #else // QT_NO_QWS_MULTIPROCESS
 
 #if defined(Q_OS_DARWIN)
-#  define Q_NO_SEMAPHORE
+#  define QT_NO_SEMAPHORE
 #endif
 
 #include "qwssignalhandler_p.h"
@@ -91,11 +90,13 @@ QT_END_NAMESPACE
 #include <unistd.h>
 #include <sys/types.h>
 #include <sys/ipc.h>
-#if defined(Q_NO_SEMAPHORE)
+#if defined(QT_NO_SEMAPHORE)
 #  include <sys/stat.h>
 #  include <sys/file.h>
-#else
+#elif !defined(QT_POSIX_IPC)
 #  include <sys/sem.h>
+#else
+#  include <semaphore.h>
 #endif
 #include <string.h>
 #include <errno.h>
@@ -109,17 +110,24 @@ QT_BEGIN_NAMESPACE
 class QLockData
 {
 public:
-#ifdef Q_NO_SEMAPHORE
+#if defined(QT_NO_SEMAPHORE) || defined(QT_POSIX_IPC)
     QByteArray file;
-#endif // Q_NO_SEMAPHORE
+#endif
+#if !defined(QT_POSIX_IPC)
     int id;
+#else
+    sem_t *id;    // Read mode resource counter
+    sem_t *rsem;  // Read mode lock
+    sem_t *wsem;  // Write mode lock
+#endif
     int count;
     bool owned;
 };
 
+
 /*!
     \class QLock
-    \brief The QLock class is a wrapper for a System V shared semaphore.
+    \brief The QLock class is a wrapper for a system shared semaphore.
 
     \ingroup qws
 
@@ -148,7 +156,7 @@ QLock::QLock(const QString &filename, char id, bool create)
 {
     data = new QLockData;
     data->count = 0;
-#ifdef Q_NO_SEMAPHORE
+#if defined(QT_NO_SEMAPHORE)
     data->file = filename.toLocal8Bit() + id;
     for (int x = 0; x < 2; ++x) {
         data->id = QT_OPEN(data->file.constData(), O_RDWR | (x ? O_CREAT : 0), S_IRWXU);
@@ -157,7 +165,7 @@ QLock::QLock(const QString &filename, char id, bool create)
             break;
         }
     }
-#else
+#elif !defined(QT_POSIX_IPC)
     key_t semkey = ftok(filename.toLocal8Bit().constData(), id);
     data->id = semget(semkey, 0, 0);
     data->owned = create;
@@ -170,6 +178,28 @@ QLock::QLock(const QString &filename, char id, bool create)
         arg.val = MAX_LOCKS;
         semctl(data->id, 0, SETVAL, arg);
     }
+#else
+    data->file = filename.toLocal8Bit() + id;
+    data->owned = create;
+
+    char ids[3] = { 'c', 'r', 'w' };
+    sem_t **sems[3] = { &data->id, &data->rsem, &data->wsem };
+    unsigned short initialValues[3] = { MAX_LOCKS, 1, 1 };
+    for (int i = 0; i < 3; ++i) {
+        QByteArray file = data->file + ids[i];
+        do {
+            *sems[i] = sem_open(file.constData(), 0, 0666, 0);
+        } while (*sems[i] == SEM_FAILED && errno == EINTR);
+        if (create) {
+            if (*sems[i] != SEM_FAILED) {
+                sem_close(*sems[i]);
+                sem_unlink(file.constData());
+            }
+            do {
+                *sems[i] = sem_open(file.constData(), O_CREAT, 0666, initialValues[i]);
+            } while (*sems[i] == SEM_FAILED && errno == EINTR);
+        }
+    }
 #endif
     if (!isValid()) {
         qWarning("QLock::QLock: Cannot %s semaphore %s '%c' (%d, %s)",
@@ -193,17 +223,32 @@ QLock::~QLock()
 
     while (locked())
         unlock();
-#ifdef Q_NO_SEMAPHORE
+
+#if defined(QT_NO_SEMAPHORE)
     if (isValid())
         QT_CLOSE(data->id);
+#elif defined(QT_POSIX_IPC)
+    if (data->id != SEM_FAILED)
+        sem_close(data->id);
+    if (data->rsem != SEM_FAILED)
+        sem_close(data->rsem);
+    if (data->wsem != SEM_FAILED)
+        sem_close(data->wsem);
 #endif
+
     if (data->owned) {
-#ifdef Q_NO_SEMAPHORE
+#if defined(QT_NO_SEMAPHORE)
         unlink(data->file.constData());
-#else
+#elif !defined(QT_POSIX_IPC)
         qt_semun semval;
         semval.val = 0;
         semctl(data->id, 0, IPC_RMID, semval);
+#else
+        char ids[3] = { 'c', 'r', 'w' };
+        for (int i = 0; i < 3; ++i) {
+            QByteArray file = data->file + ids[i];
+            sem_unlink(file.constData());
+        }
 #endif
     }
     delete data;
@@ -216,7 +261,11 @@ QLock::~QLock()
 */
 bool QLock::isValid() const
 {
+#if !defined(QT_POSIX_IPC)
     return data && data->id != -1;
+#else
+    return data && data->id != SEM_FAILED && data->rsem != SEM_FAILED && data->wsem != SEM_FAILED;
+#endif
 }
 
 /*!
@@ -232,21 +281,48 @@ bool QLock::isValid() const
 */
 void QLock::lock(Type t)
 {
+    if (!isValid())
+        return;
+
     if (!data->count) {
         type = t;
 
         int rv;
-#ifdef Q_NO_SEMAPHORE
+#if defined(QT_NO_SEMAPHORE)
         int op = type == Write ? LOCK_EX : LOCK_SH;
 
         EINTR_LOOP(rv, flock(data->id, op));
-#else
+#elif !defined(QT_POSIX_IPC)
         sembuf sops;
         sops.sem_num = 0;
         sops.sem_op = type == Write ? -MAX_LOCKS : -1;
         sops.sem_flg = SEM_UNDO;
 
         EINTR_LOOP(rv, semop(data->id, &sops, 1));
+#else
+        if (type == Write) {
+            EINTR_LOOP(rv, sem_wait(data->rsem));
+            if (rv != -1) {
+                EINTR_LOOP(rv, sem_wait(data->wsem));
+                if (rv == -1)
+                    sem_post(data->rsem);
+            }
+        } else {
+            EINTR_LOOP(rv, sem_wait(data->wsem));
+            if (rv != -1) {
+                EINTR_LOOP(rv, sem_trywait(data->rsem));
+                if (rv != -1 || errno == EAGAIN) {
+                    EINTR_LOOP(rv, sem_wait(data->id));
+                    if (rv == -1) {
+                        int semval;
+                        sem_getvalue(data->id, &semval);
+                        if (semval == MAX_LOCKS)
+                            sem_post(data->rsem);
+                    }
+                }
+                rv = sem_post(data->wsem);
+            }
+        }
 #endif
         if (rv == -1) {
             qDebug("QLock::lock(): %s", strerror(errno));
@@ -265,19 +341,37 @@ void QLock::lock(Type t)
 */
 void QLock::unlock()
 {
-    if (data->count) {
+    if (!isValid())
+        return;
+
+    if (data->count > 0) {
         data->count--;
         if (!data->count) {
             int rv;
-#ifdef Q_NO_SEMAPHORE
+#if defined(QT_NO_SEMAPHORE)
             EINTR_LOOP(rv, flock(data->id, LOCK_UN));
-#else
+#elif !defined(QT_POSIX_IPC)
             sembuf sops;
             sops.sem_num = 0;
             sops.sem_op = type == Write ? MAX_LOCKS : 1;
             sops.sem_flg = SEM_UNDO;
 
             EINTR_LOOP(rv, semop(data->id, &sops, 1));
+#else
+            if (type == Write) {
+                sem_post(data->wsem);
+                rv = sem_post(data->rsem);
+            } else {
+                EINTR_LOOP(rv, sem_wait(data->wsem));
+                if (rv != -1) {
+                    sem_post(data->id);
+                    int semval;
+                    sem_getvalue(data->id, &semval);
+                    if (semval == MAX_LOCKS)
+                        sem_post(data->rsem);
+                    rv = sem_post(data->wsem);
+                }
+            }
 #endif
             if (rv == -1)
                 qDebug("QLock::unlock(): %s", strerror(errno));
diff --git a/src/gui/embedded/qmouselinuxinput_qws.cpp b/src/gui/embedded/qmouselinuxinput_qws.cpp
index efcf6d4..19a9a99 100644
--- a/src/gui/embedded/qmouselinuxinput_qws.cpp
+++ b/src/gui/embedded/qmouselinuxinput_qws.cpp
@@ -135,19 +135,21 @@ void QWSLinuxInputMousePrivate::readMouseData()
     int n = 0;
 
     forever {
-        n = QT_READ(m_fd, reinterpret_cast<char *>(buffer) + n, sizeof(buffer) - n);
-
-        if (n == 0) {
+        int bytesRead = QT_READ(m_fd, reinterpret_cast<char *>(buffer) + n, sizeof(buffer) - n);
+        if (bytesRead == 0) {
             qWarning("Got EOF from the input device.");
             return;
-        } else if (n < 0 && (errno != EINTR && errno != EAGAIN)) {
-            qWarning("Could not read from input device: %s", strerror(errno));
-            return;
-        } else if (n % sizeof(buffer[0]) == 0) {
+        }
+        if (bytesRead == -1) {
+            if (errno != EAGAIN)
+                qWarning("Could not read from input device: %s", strerror(errno));
             break;
         }
-    }
 
+        n += bytesRead;
+        if (n % sizeof(buffer[0]) == 0)
+            break;
+    }
     n /= sizeof(buffer[0]);
 
     for (int i = 0; i < n; ++i) {
diff --git a/src/gui/embedded/qmouseqnx_qws.cpp b/src/gui/embedded/qmouseqnx_qws.cpp
index a9647c0..d0b892e 100644
--- a/src/gui/embedded/qmouseqnx_qws.cpp
+++ b/src/gui/embedded/qmouseqnx_qws.cpp
@@ -39,14 +39,13 @@
 **
 ****************************************************************************/
 
-#include "qplatformdefs.h"
 #include "qmouseqnx_qws.h"
 
+#include "qplatformdefs.h"
 #include "qsocketnotifier.h"
-#include "qdebug.h"
+#include "private/qcore_unix_p.h"
 
 #include <sys/dcmd_input.h>
-
 #include <errno.h>
 
 QT_BEGIN_NAMESPACE
@@ -92,22 +91,28 @@ QT_BEGIN_NAMESPACE
 
     \sa QMouseDriverFactory
  */
-QQnxMouseHandler::QQnxMouseHandler(const QString & /*driver*/, const QString &device)
+QQnxMouseHandler::QQnxMouseHandler(const QString & driver, const QString &device)
+    : QObject(), QWSMouseHandler(driver, device), mouseButtons(Qt::NoButton)
 {
     // open the mouse device with O_NONBLOCK so reading won't block when there's no data
     mouseFD = QT_OPEN(device.isEmpty() ? "/dev/devi/mouse0" : device.toLatin1().constData(),
-                          QT_OPEN_RDONLY | O_NONBLOCK);
+                      QT_OPEN_RDONLY | O_NONBLOCK);
     if (mouseFD == -1) {
         qErrnoWarning(errno, "QQnxMouseHandler: Unable to open mouse device");
-        return;
+    } else {
+        struct _pointer_info data;
+        if (devctl(mouseFD, _POINTERGETINFO, &data, sizeof(data), NULL) == EOK)
+            absolutePositioning = (data.flags & _POINTER_FLAG_ABSOLUTE);
+        else
+            absolutePositioning = !device.isEmpty() && device.contains(QLatin1String("touch"));
+
+        // register a socket notifier on the file descriptor so we'll wake up whenever
+        // there's a mouse move waiting for us.
+        mouseNotifier = new QSocketNotifier(mouseFD, QSocketNotifier::Read, this);
+        connect(mouseNotifier, SIGNAL(activated(int)), SLOT(socketActivated()));
+
+        qDebug("QQnxMouseHandler: connected.");
     }
-
-    // register a socket notifier on the file descriptor so we'll wake up whenever
-    // there's a mouse move waiting for us.
-    mouseNotifier = new QSocketNotifier(mouseFD, QSocketNotifier::Read, this);
-    connect(mouseNotifier, SIGNAL(activated(int)), SLOT(socketActivated()));
-
-    qDebug() << "QQnxMouseHandler: connected.";
 }
 
 /*!
@@ -115,7 +120,8 @@ QQnxMouseHandler::QQnxMouseHandler(const QString & /*driver*/, const QString &de
  */
 QQnxMouseHandler::~QQnxMouseHandler()
 {
-    QT_CLOSE(mouseFD);
+    if (mouseFD != -1)
+        QT_CLOSE(mouseFD);
 }
 
 /*! \reimp */
@@ -140,39 +146,45 @@ void QQnxMouseHandler::suspend()
 */
 void QQnxMouseHandler::socketActivated()
 {
+    QPoint queuedPos = mousePos;
+
     // _mouse_packet is a QNX structure. devi-hid is nice enough to translate
     // the raw byte data from mouse devices into generic format for us.
-    _mouse_packet packet;
+    struct _mouse_packet buffer[32];
+    int n = 0;
 
-    int iteration = 0;
-
-    // read mouse events in batches of 10. Since we're getting quite a lot
-    // of mouse events, it's better to do them in batches than to return to the
-    // event loop every time.
-    do {
-        int bytesRead = QT_READ(mouseFD, &packet, sizeof(packet));
+    forever {
+        int bytesRead = QT_READ(mouseFD, reinterpret_cast<char *>(buffer) + n, sizeof(buffer) - n);
         if (bytesRead == -1) {
             // EAGAIN means that there are no more mouse events to read
             if (errno != EAGAIN)
-                qErrnoWarning(errno, "QQnxMouseHandler: Unable to read from socket");
-            return;
+                qErrnoWarning(errno, "QQnxMouseHandler: Could not read from input device");
+            break;
         }
 
-        // bytes read should always be equal to the size of a packet.
-        Q_ASSERT(bytesRead == sizeof(packet));
+        n += bytesRead;
+        if (n % sizeof(buffer[0]) == 0)
+            break;
+    }
+    n /= sizeof(buffer[0]);
 
-        // translate the coordinates from the QNX data structure to Qt coordinates
-        // note the swapped y axis
-        QPoint pos = mousePos;
-        pos += QPoint(packet.dx, -packet.dy);
+    for (int i = 0; i < n; ++i) {
+        const struct _mouse_packet &packet = buffer[i];
 
-        // QNX only tells us relative mouse movements, not absolute ones, so limit the
-        // cursor position manually to the screen
-        limitToScreen(pos);
+        // translate the coordinates from the QNX data structure to the Qt coordinates
+        if (absolutePositioning) {
+            queuedPos = QPoint(packet.dx, packet.dy);
+        } else {
+            // note the swapped y axis
+            queuedPos += QPoint(packet.dx, -packet.dy);
+
+            // QNX only tells us relative mouse movements, not absolute ones, so
+            // limit the cursor position manually to the screen
+            limitToScreen(queuedPos);
+        }
 
         // translate the QNX mouse button bitmask to Qt buttons
         int buttons = Qt::NoButton;
-
         if (packet.hdr.buttons & _POINTER_BUTTON_LEFT)
             buttons |= Qt::LeftButton;
         if (packet.hdr.buttons & _POINTER_BUTTON_MIDDLE)
@@ -180,11 +192,17 @@ void QQnxMouseHandler::socketActivated()
         if (packet.hdr.buttons & _POINTER_BUTTON_RIGHT)
             buttons |= Qt::RightButton;
 
-        // call mouseChanged() - this does all the magic to actually move the on-screen
-        // mouse cursor.
-        mouseChanged(pos, buttons, 0);
-    } while (++iteration < 11);
+        if (buttons != mouseButtons) {
+            // send the MouseEvent to avoid missing any clicks
+            mouseChanged(queuedPos, buttons, 0);
+            // mousePos updated by the mouseChanged()
+            queuedPos = mousePos;
+            mouseButtons = buttons;
+        }
+    }
+
+    if (queuedPos != mousePos)
+        mouseChanged(queuedPos, mouseButtons, 0);
 }
 
 QT_END_NAMESPACE
-
diff --git a/src/gui/embedded/qmouseqnx_qws.h b/src/gui/embedded/qmouseqnx_qws.h
index 2a5eef2..54deaf3 100644
--- a/src/gui/embedded/qmouseqnx_qws.h
+++ b/src/gui/embedded/qmouseqnx_qws.h
@@ -70,6 +70,8 @@ private Q_SLOTS:
 private:
     QSocketNotifier *mouseNotifier;
     int mouseFD;
+    int mouseButtons;
+    bool absolutePositioning;
 };
 
 QT_END_NAMESPACE
diff --git a/src/gui/embedded/qscreen_qws.h b/src/gui/embedded/qscreen_qws.h
index 2ecc6e7..5ff90f9 100644
--- a/src/gui/embedded/qscreen_qws.h
+++ b/src/gui/embedded/qscreen_qws.h
@@ -44,7 +44,7 @@
 
 #include <QtCore/qnamespace.h>
 #include <QtCore/qpoint.h>
-#include <QtCore/qlist.h>
+#include <QtCore/qstringlist.h>
 #include <QtGui/qrgb.h>
 #include <QtCore/qrect.h>
 #include <QtGui/qimage.h>
@@ -357,6 +357,7 @@ private:
     friend class QVNCScreen;
     friend class QLinuxFbScreen;
     friend class QVFbScreen;
+    friend class QQnxScreen;
     friend class QProxyScreen;
     friend class QIntfbScreen;
 #endif
diff --git a/src/gui/embedded/qscreenqnx_qws.cpp b/src/gui/embedded/qscreenqnx_qws.cpp
index 4afe087..d34e732 100644
--- a/src/gui/embedded/qscreenqnx_qws.cpp
+++ b/src/gui/embedded/qscreenqnx_qws.cpp
@@ -40,7 +40,9 @@
 ****************************************************************************/
 
 #include "qscreenqnx_qws.h"
-#include "qdebug.h"
+
+#include <qapplication.h>
+#include <qregexp.h>
 
 #include <gf/gf.h>
 
@@ -52,6 +54,10 @@ struct QQnxScreenContext
     inline QQnxScreenContext()
         : device(0), display(0), layer(0), hwSurface(0), memSurface(0), context(0)
     {}
+    inline ~QQnxScreenContext()
+    { cleanup(); }
+
+    void cleanup();
 
     gf_dev_t device;
     gf_dev_info_t deviceInfo;
@@ -64,6 +70,35 @@ struct QQnxScreenContext
     gf_context_t context;
 };
 
+void QQnxScreenContext::cleanup()
+{
+    if (context) {
+        gf_context_free(context);
+        context = 0;
+    }
+    if (memSurface) {
+        gf_surface_free(memSurface);
+        memSurface = 0;
+    }
+    if (hwSurface) {
+        gf_surface_free(hwSurface);
+        hwSurface = 0;
+    }
+    if (layer) {
+        gf_layer_detach(layer);
+        layer = 0;
+    }
+    if (display) {
+        gf_display_detach(display);
+        display = 0;
+    }
+    if (device) {
+        gf_dev_detach(device);
+        device = 0;
+    }
+}
+
+
 /*!
     \class QQnxScreen
     \preliminary
@@ -117,19 +152,23 @@ QQnxScreen::~QQnxScreen()
     delete d;
 }
 
-/*! \reimp
+/*!
+    \reimp
 */
 bool QQnxScreen::initDevice()
 {
-    // implement this if you have multiple processes that want to access the display
-    // (not required if QT_NO_QWS_MULTIPROCESS is set)
+#ifndef QT_NO_QWS_CURSOR
+    QScreenCursor::initSoftwareCursor();
+#endif
+
     return true;
 }
 
-/*! \internal
-  Attaches to the named device \a name.
+/*!
+    \internal
+    Attaches to the named device \a name.
 */
-static bool attachDevice(QQnxScreenContext * const d, const char *name)
+static inline bool attachDevice(QQnxScreenContext * const d, const char *name)
 {
     int ret = gf_dev_attach(&d->device, name, &d->deviceInfo);
     if (ret != GF_ERR_OK) {
@@ -139,193 +178,231 @@ static bool attachDevice(QQnxScreenContext * const d, const char *name)
     return true;
 }
 
-/*! \internal
-  Attaches to the display at index \a displayIndex.
- */
-static bool attachDisplay(QQnxScreenContext * const d, int displayIndex)
+/*!
+    \internal
+    Attaches to the display at index \a displayIndex.
+*/
+static inline bool attachDisplay(QQnxScreenContext * const d, int displayIndex)
 {
     int ret = gf_display_attach(&d->display, d->device, displayIndex, &d->displayInfo);
     if (ret != GF_ERR_OK) {
-        qWarning("QQnxScreen: gf_display_attach(%d) failed with error code %d",
-                displayIndex, ret);
+        qWarning("QQnxScreen: gf_display_attach(%d) failed with error code %d", displayIndex, ret);
         return false;
     }
     return true;
 }
 
-/*! \internal
-  Attaches to the layer \a layerIndex.
- */
-static bool attachLayer(QQnxScreenContext * const d, int layerIndex)
+/*!
+    \internal
+    Attaches to the layer \a layerIndex.
+*/
+static inline bool attachLayer(QQnxScreenContext * const d, int layerIndex)
 {
-    int ret = gf_layer_attach(&d->layer, d->display, layerIndex, 0);
+    unsigned flags = QApplication::type() != QApplication::GuiServer ? GF_LAYER_ATTACH_PASSIVE : 0;
+    int ret = gf_layer_attach(&d->layer, d->display, layerIndex, flags);
     if (ret != GF_ERR_OK) {
-        qWarning("QQnxScreen: gf_layer_attach(%d) failed with error code %d", layerIndex,
-                ret);
+        qWarning("QQnxScreen: gf_layer_attach(%d) failed with error code %d", layerIndex, ret);
         return false;
     }
-    gf_layer_enable(d->layer);
 
     return true;
 }
 
-/*! \internal
-  Creates a new hardware surface (usually on the Gfx card memory) with the dimensions \a w * \a h.
- */
-static bool createHwSurface(QQnxScreenContext * const d, int w, int h)
+/*!
+    \internal
+    Creates a new hardware surface (usually on the Gfx card memory) with the dimensions \a w * \a h.
+*/
+static inline bool createHwSurface(QQnxScreenContext * const d, int w, int h)
 {
     int ret = gf_surface_create_layer(&d->hwSurface, &d->layer, 1, 0,
-                w, h, GF_FORMAT_ARGB8888, 0, 0);
+                                      w, h, d->displayInfo.format, 0, 0);
     if (ret != GF_ERR_OK) {
-        qWarning("QQnxScreen: gf_surface_create_layer(%dx%d) failed with error code %d",
-                w, h, ret);
+        qWarning("QQnxScreen: gf_surface_create_layer(%dx%d) failed with error code %d", w, h, ret);
         return false;
     }
 
     gf_layer_set_surfaces(d->layer, &d->hwSurface, 1);
 
+    gf_layer_enable(d->layer);
+
     ret = gf_layer_update(d->layer, 0);
     if (ret != GF_ERR_OK) {
         qWarning("QQnxScreen: gf_layer_update() failed with error code %d\n", ret);
         return false;
     }
 
-    return true;
-}
-
-/*! \internal
-  Creates an in-memory, linear accessible surface of dimensions \a w * \a h.
-  This is the main surface that QWS blits to.
- */
-static bool createMemSurface(QQnxScreenContext * const d, int w, int h)
-{
-    // Note: gf_surface_attach() could also be used, so we'll create the buffer
-    // and let the surface point to it. Here, we use surface_create instead.
-
-    int ret = gf_surface_create(&d->memSurface, d->device, w, h,
-                GF_FORMAT_ARGB8888, 0,
-                GF_SURFACE_CREATE_CPU_FAST_ACCESS | GF_SURFACE_CREATE_CPU_LINEAR_ACCESSIBLE
-                | GF_SURFACE_PHYS_CONTIG | GF_SURFACE_CREATE_SHAREABLE);
+    ret = gf_context_create(&d->context);
     if (ret != GF_ERR_OK) {
-        qWarning("QQnxScreen: gf_surface_create(%dx%d) failed with error code %d",
-                w, h, ret);
+        qWarning("QQnxScreen: gf_context_create() failed with error code %d", ret);
         return false;
     }
 
-    gf_surface_get_info(d->memSurface, &d->memSurfaceInfo);
-
-    if (d->memSurfaceInfo.sid == unsigned(GF_SID_INVALID)) {
-        qWarning("QQnxScreen: gf_surface_get_info() failed.");
+    ret = gf_context_set_surface(d->context, d->hwSurface);
+    if (ret != GF_ERR_OK) {
+        qWarning("QQnxScreen: gf_context_set_surface() failed with error code %d", ret);
         return false;
     }
 
     return true;
 }
 
-/* \internal
-   Creates a QNX gf context and sets our memory surface on it.
- */
-static bool createContext(QQnxScreenContext * const d)
+/*!
+    \internal
+    Creates an in-memory, linear accessible surface of dimensions \a w * \a h.
+    This is the main surface that QWS blits to.
+*/
+static inline bool createMemSurface(QQnxScreenContext * const d, int w, int h)
 {
-    int ret = gf_context_create(&d->context);
+#ifndef QT_NO_QWS_MULTIPROCESS
+    if (QApplication::type() != QApplication::GuiServer) {
+        unsigned sidlist[64];
+        int n = gf_surface_sidlist(d->device, sidlist); // undocumented API
+        for (int i = 0; i < n; ++i) {
+            int ret = gf_surface_attach_by_sid(&d->memSurface, d->device, sidlist[i]);
+            if (ret == GF_ERR_OK) {
+                gf_surface_get_info(d->memSurface, &d->memSurfaceInfo);
+                if (d->memSurfaceInfo.sid != unsigned(GF_SID_INVALID)) {
+                    // can we use the surface's vaddr?
+                    unsigned flags = GF_SURFACE_CPU_LINEAR_READABLE | GF_SURFACE_CPU_LINEAR_WRITEABLE;
+                    if ((d->memSurfaceInfo.flags & flags) == flags)
+                        return true;
+                }
+
+                gf_surface_free(d->memSurface);
+                d->memSurface = 0;
+            }
+        }
+        qWarning("QQnxScreen: cannot attach to an usable surface; create a new one.");
+    }
+#endif
+    int ret = gf_surface_create(&d->memSurface, d->device, w, h, d->displayInfo.format, 0,
+                GF_SURFACE_CREATE_CPU_FAST_ACCESS | GF_SURFACE_CREATE_CPU_LINEAR_ACCESSIBLE
+                | GF_SURFACE_CREATE_PHYS_CONTIG | GF_SURFACE_CREATE_SHAREABLE);
     if (ret != GF_ERR_OK) {
-        qWarning("QQnxScreen: gf_context_create() failed with error code %d", ret);
+        qWarning("QQnxScreen: gf_surface_create(%dx%d) failed with error code %d",
+                 w, h, ret);
         return false;
     }
 
-    ret = gf_context_set_surface(d->context, d->memSurface);
-    if (ret != GF_ERR_OK) {
-        qWarning("QQnxScreen: gf_context_set_surface() failed with error code %d", ret);
+    gf_surface_get_info(d->memSurface, &d->memSurfaceInfo);
+
+    if (d->memSurfaceInfo.sid == unsigned(GF_SID_INVALID)) {
+        qWarning("QQnxScreen: gf_surface_get_info() failed.");
         return false;
     }
 
     return true;
 }
 
-/*! \reimp
-  Connects to QNX's io-display based device based on the \a displaySpec parameters
-  from the \c{QWS_DISPLAY} environment variable. See the QQnxScreen class documentation
-  for possible parameters.
+/*!
+    \reimp
+    Connects to QNX's io-display based device based on the \a displaySpec parameters
+    from the \c{QWS_DISPLAY} environment variable. See the QQnxScreen class documentation
+    for possible parameters.
 
-  \sa QQnxScreen
- */
+    \sa QQnxScreen
+*/
 bool QQnxScreen::connect(const QString &displaySpec)
 {
     const QStringList params = displaySpec.split(QLatin1Char(':'), QString::SkipEmptyParts);
 
-    bool isOk = false;
-    QRegExp deviceRegExp(QLatin1String("^device=(.+)$"));
-    if (params.indexOf(deviceRegExp) != -1) {
-        isOk = attachDevice(d, deviceRegExp.cap(1).toLocal8Bit().constData());
-    } else {
-        // no device specified - attach to device 0 (the default)
-        isOk = attachDevice(d, GF_DEVICE_INDEX(0));
+    // default to device 0
+    int deviceIndex = 0;
+    if (!params.isEmpty()) {
+        QRegExp deviceRegExp(QLatin1String("^device=(.+)$"));
+        if (params.indexOf(deviceRegExp) != -1)
+            deviceIndex = deviceRegExp.cap(1).toInt();
     }
 
-    if (!isOk)
+    if (!attachDevice(d, GF_DEVICE_INDEX(deviceIndex)))
         return false;
 
     qDebug("QQnxScreen: Attached to Device, number of displays: %d", d->deviceInfo.ndisplays);
 
-    // default to display 0
-    int displayIndex = 0;
-    QRegExp displayRegexp(QLatin1String("^display=(\\d+)$"));
-    if (params.indexOf(displayRegexp) != -1) {
-        displayIndex = displayRegexp.cap(1).toInt();
+    // default to display id passed to constructor
+    int displayIndex = displayId;
+    if (!params.isEmpty()) {
+        QRegExp displayRegexp(QLatin1String("^display=(\\d+)$"));
+        if (params.indexOf(displayRegexp) != -1)
+            displayIndex = displayRegexp.cap(1).toInt();
     }
 
     if (!attachDisplay(d, displayIndex))
         return false;
 
     qDebug("QQnxScreen: Attached to Display %d, resolution %dx%d, refresh %d Hz",
-            displayIndex, d->displayInfo.xres, d->displayInfo.yres,
-            d->displayInfo.refresh);
-
+            displayIndex, d->displayInfo.xres, d->displayInfo.yres, d->displayInfo.refresh);
 
     // default to main_layer_index from the displayInfo struct
-    int layerIndex = 0;
-    QRegExp layerRegexp(QLatin1String("^layer=(\\d+)$"));
-    if (params.indexOf(layerRegexp) != -1) {
-        layerIndex = layerRegexp.cap(1).toInt();
-    } else {
-        layerIndex = d->displayInfo.main_layer_index;
+    int layerIndex = d->displayInfo.main_layer_index;
+    if (!params.isEmpty()) {
+        QRegExp layerRegexp(QLatin1String("^layer=(\\d+)$"));
+        if (params.indexOf(layerRegexp) != -1)
+            layerIndex = layerRegexp.cap(1).toInt();
     }
 
     if (!attachLayer(d, layerIndex))
         return false;
 
+    // determine the pixel format and the pixel type
+    switch (d->displayInfo.format) {
+#if defined(QT_QWS_DEPTH_32) || defined(QT_QWS_DEPTH_GENERIC)
+        case GF_FORMAT_ARGB8888:
+            pixeltype = QScreen::BGRPixel;
+        // fall through
+        case GF_FORMAT_BGRA8888:
+            setPixelFormat(QImage::Format_ARGB32);
+            break;
+#endif
+#if defined(QT_QWS_DEPTH_24)
+        case GF_FORMAT_BGR888:
+            pixeltype = QScreen::BGRPixel;
+            setPixelFormat(QImage::Format_RGB888);
+            break;
+#endif
+#if defined(QT_QWS_DEPTH_16) || defined(QT_QWS_DEPTH_GENERIC)
+        case GF_FORMAT_PACK_RGB565:
+        case GF_FORMAT_PKLE_RGB565:
+        case GF_FORMAT_PKBE_RGB565:
+#if Q_BYTE_ORDER == Q_BIG_ENDIAN
+            setFrameBufferLittleEndian((d->displayInfo.format & GF_FORMAT_PKLE) == GF_FORMAT_PKLE);
+#endif
+            setPixelFormat(QImage::Format_RGB16);
+            break;
+#endif
+        default:
+            return false;
+    }
+
     // tell QWSDisplay the width and height of the display
     w = dw = d->displayInfo.xres;
     h = dh = d->displayInfo.yres;
-
-    // we only support 32 bit displays for now.
-    QScreen::d = 32;
+    QScreen::d = (d->displayInfo.format & GF_FORMAT_BPP);  // colour depth
 
     // assume 72 dpi as default, to calculate the physical dimensions if not specified
     const int defaultDpi = 72;
-
-    // Handle display physical size spec.
-    QRegExp mmWidthRegexp(QLatin1String("^mmWidth=(\\d+)$"));
-    if (params.indexOf(mmWidthRegexp) == -1) {
-        physWidth = qRound(dw * 25.4 / defaultDpi);
-    } else {
-        physWidth = mmWidthRegexp.cap(1).toInt();
+    // Handle display physical size
+    physWidth = qRound(dw * 25.4 / defaultDpi);
+    physHeight = qRound(dh * 25.4 / defaultDpi);
+    if (!params.isEmpty()) {
+        QRegExp mmWidthRegexp(QLatin1String("^mmWidth=(\\d+)$"));
+        if (params.indexOf(mmWidthRegexp) != -1)
+            physWidth = mmWidthRegexp.cap(1).toInt();
+
+        QRegExp mmHeightRegexp(QLatin1String("^mmHeight=(\\d+)$"));
+        if (params.indexOf(mmHeightRegexp) != -1)
+            physHeight = mmHeightRegexp.cap(1).toInt();
     }
 
-    QRegExp mmHeightRegexp(QLatin1String("^mmHeight=(\\d+)$"));
-    if (params.indexOf(mmHeightRegexp) == -1) {
-        physHeight = qRound(dh * 25.4 / defaultDpi);
-    } else {
-        physHeight = mmHeightRegexp.cap(1).toInt();
+    if (QApplication::type() == QApplication::GuiServer) {
+        // create a hardware surface with our dimensions. In the old days, it was possible
+        // to get a pointer directly to the hw surface, so we could blit directly. Now, we
+        // have to use one indirection more, because it's not guaranteed that the hw surface
+        // is mappable into our process.
+        if (!createHwSurface(d, w, h))
+            return false;
     }
 
-    // create a hardware surface with our dimensions. In the old days, it was possible
-    // to get a pointer directly to the hw surface, so we could blit directly. Now, we
-    // have to use one indirection more, because it's not guaranteed that the hw surface
-    // is mappable into our process.
-    if (!createHwSurface(d, w, h))
-        return false;
-
     // create an in-memory linear surface that is used by QWS. QWS will blit directly in here.
     if (!createMemSurface(d, w, h))
         return false;
@@ -338,72 +415,84 @@ bool QQnxScreen::connect(const QString &displaySpec)
     // the overall size of the in-memory buffer is linestep * height
     size = mapsize = lstep * h;
 
-    // create a QNX drawing context
-    if (!createContext(d))
-        return false;
-
-    // we're always using a software cursor for now. Initialize it here.
-    QScreenCursor::initSoftwareCursor();
-
     // done, the driver should be connected to the display now.
     return true;
 }
 
-/*! \reimp
- */
+/*!
+    \reimp
+*/
 void QQnxScreen::disconnect()
 {
-    if (d->context)
-        gf_context_free(d->context);
-
-    if (d->memSurface)
-        gf_surface_free(d->memSurface);
-
-    if (d->hwSurface)
-        gf_surface_free(d->hwSurface);
-
-    if (d->layer)
-        gf_layer_detach(d->layer);
-
-    if (d->display)
-        gf_display_detach(d->display);
-
-    if (d->device)
-        gf_dev_detach(d->device);
-
-    d->memSurface = 0;
-    d->hwSurface = 0;
-    d->context = 0;
-    d->layer = 0;
-    d->display = 0;
-    d->device = 0;
+    d->cleanup();
 }
 
-/*! \reimp
- */
+/*!
+    \reimp
+*/
 void QQnxScreen::shutdownDevice()
 {
 }
 
-
-/*! \reimp
-  QQnxScreen doesn't support setting the mode, use io-display instead.
- */
+/*!
+    \reimp
+    QQnxScreen doesn't support setting the mode, use io-display instead.
+*/
 void QQnxScreen::setMode(int,int,int)
 {
     qWarning("QQnxScreen: Unable to change mode, use io-display instead.");
 }
 
-/*! \reimp
- */
+/*!
+    \reimp
+*/
 bool QQnxScreen::supportsDepth(int depth) const
 {
-    // only 32-bit for the moment
-    return depth == 32;
+    gf_modeinfo_t displayMode;
+    for (int i = 0; gf_display_query_mode(d->display, i, &displayMode) == GF_ERR_OK; ++i) {
+        switch (displayMode.primary_format) {
+#if defined(QT_QWS_DEPTH_32) || defined(QT_QWS_DEPTH_GENERIC)
+            case GF_FORMAT_ARGB8888:
+            case GF_FORMAT_BGRA8888:
+                if (depth == 32)
+                    return true;
+                break;
+#endif
+#if defined(QT_QWS_DEPTH_24)
+            case GF_FORMAT_BGR888:
+                if (depth == 24)
+                    return true;
+                break;
+#endif
+#if defined(QT_QWS_DEPTH_16) || defined(QT_QWS_DEPTH_GENERIC)
+            case GF_FORMAT_PACK_RGB565:
+            case GF_FORMAT_PKLE_RGB565:
+            case GF_FORMAT_PKBE_RGB565:
+                if (depth == 16)
+                    return true;
+                break;
+#endif
+            default:
+                break;
+        }
+    }
+
+    return false;
 }
 
-/*! \reimp
- */
+/*!
+    \reimp
+*/
+void QQnxScreen::blank(bool on)
+{
+    int ret = gf_display_set_dpms(d->display, on ? GF_DPMS_OFF : GF_DPMS_ON);
+    if (ret != GF_ERR_OK)
+        qWarning("QQnxScreen: gf_display_set_dpms() failed with error code %d", ret);
+}
+
+/*!
+    \reimp
+*/
 void QQnxScreen::exposeRegion(QRegion r, int changing)
 {
     // here is where the actual magic happens. QWS will call exposeRegion whenever
@@ -414,6 +503,10 @@ void QQnxScreen::exposeRegion(QRegion r, int changing)
     QScreen::exposeRegion(r, changing);
 
     // now our in-memory surface should be up to date with the latest changes.
+
+    if (!d->hwSurface)
+        return;
+
     // the code below copies the region from the in-memory surface to the hardware.
 
     // just get the bounding rectangle of the region. Most screen updates are rectangular
@@ -432,16 +525,14 @@ void QQnxScreen::exposeRegion(QRegion r, int changing)
 
     // blit the changed region from the memory surface to the hardware surface
     ret = gf_draw_blit2(d->context, d->memSurface, d->hwSurface,
-            br.x(), br.y(), br.right(), br.bottom(), br.x(), br.y());
-    if (ret != GF_ERR_OK) {
+                        br.x(), br.y(), br.right(), br.bottom(), br.x(), br.y());
+    if (ret != GF_ERR_OK)
         qWarning("QQnxScreen: gf_draw_blit2() failed with error code %d", ret);
-    }
 
     // flush all drawing commands (in our case, a single blit)
     ret = gf_draw_flush(d->context);
-    if (ret != GF_ERR_OK) {
+    if (ret != GF_ERR_OK)
         qWarning("QQnxScreen: gf_draw_flush() failed with error code %d", ret);
-    }
 
     // tell QNX that we're done drawing.
     gf_draw_end(d->context);
diff --git a/src/gui/embedded/qscreenqnx_qws.h b/src/gui/embedded/qscreenqnx_qws.h
index 38c0ac9..6f6d18a 100644
--- a/src/gui/embedded/qscreenqnx_qws.h
+++ b/src/gui/embedded/qscreenqnx_qws.h
@@ -66,6 +66,7 @@ public:
     void shutdownDevice();
     void setMode(int,int,int);
     bool supportsDepth(int) const;
+    void blank(bool on);
 
     void exposeRegion(QRegion r, int changing);
 
diff --git a/src/gui/embedded/qwslock.cpp b/src/gui/embedded/qwslock.cpp
index c14f50b..f9ea000 100644
--- a/src/gui/embedded/qwslock.cpp
+++ b/src/gui/embedded/qwslock.cpp
@@ -45,12 +45,15 @@
 
 #include "qwssignalhandler_p.h"
 
+#include <stdint.h>
 #include <stdio.h>
 #include <errno.h>
 #include <string.h>
 #include <sys/types.h>
 #include <sys/ipc.h>
+#ifndef QT_POSIX_IPC
 #include <sys/sem.h>
+#endif
 #include <sys/time.h>
 #include <time.h>
 #ifdef Q_OS_LINUX
@@ -66,6 +69,12 @@ QT_BEGIN_NAMESPACE
 #error QWSLock currently requires semaphores
 #endif
 
+#ifdef QT_POSIX_IPC
+#include <QtCore/QAtomicInt>
+
+static QBasicAtomicInt localUniqueId = Q_BASIC_ATOMIC_INITIALIZER(1);
+#endif
+
 QWSLock::QWSLock(int id) : semId(id)
 {
     static unsigned short initialValues[3] = { 1, 1, 0 };
@@ -74,6 +83,7 @@ QWSLock::QWSLock(int id) : semId(id)
     QWSSignalHandler::instance()->addWSLock(this);
 #endif
 
+#ifndef QT_POSIX_IPC
     if (semId == -1) {
         semId = semget(IPC_PRIVATE, 3, IPC_CREAT | 0666);
         if (semId == -1) {
@@ -88,6 +98,30 @@ QWSLock::QWSLock(int id) : semId(id)
             qFatal("Unable to initialize semaphores");
         }
     }
+#else
+    sems[0] = sems[1] = sems[2] = SEM_FAILED;
+    owned = false;
+
+    if (semId == -1) {
+        // ### generate really unique IDs
+        semId = (getpid() << 16) + (localUniqueId.fetchAndAddRelaxed(1) % ushort(-1));
+        owned = true;
+    }
+
+    QByteArray pfx = "/qwslock_" + QByteArray::number(semId, 16) + '_';
+    QByteArray keys[3] = { pfx + "BackingStore", pfx + "Communication", pfx + "RegionEvent" };
+    for (int i = 0; i < 3; ++i) {
+        if (owned)
+            sem_unlink(keys[i].constData());
+        do {
+            sems[i] = sem_open(keys[i].constData(), (owned ? O_CREAT : 0), 0666, initialValues[i]);
+        } while (sems[i] == SEM_FAILED && errno == EINTR);
+        if (sems[i] == SEM_FAILED) {
+            perror("QWSLock::QWSLock");
+            qFatal("Unable to %s semaphore", (owned ? "create" : "open"));
+        }
+    }
+#endif
 
     lockCount[0] = lockCount[1] = 0;
 }
@@ -99,10 +133,27 @@ QWSLock::~QWSLock()
 #endif
 
     if (semId != -1) {
+#ifndef QT_POSIX_IPC
         qt_semun semval;
         semval.val = 0;
         semctl(semId, 0, IPC_RMID, semval);
         semId = -1;
+#else
+        // emulate the SEM_UNDO behavior for the BackingStore lock
+        while (hasLock(BackingStore))
+            unlock(BackingStore);
+
+        QByteArray pfx = "/qwslock_" + QByteArray::number(semId, 16) + '_';
+        QByteArray keys[3] = { pfx + "BackingStore", pfx + "Communication", pfx + "RegionEvent" };
+        for (int i = 0; i < 3; ++i) {
+            if (sems[i] != SEM_FAILED) {
+                sem_close(sems[i]);
+                sems[i] = SEM_FAILED;
+            }
+            if (owned)
+                sem_unlink(keys[i].constData());
+        }
+#endif
     }
 }
 
@@ -110,6 +161,7 @@ bool QWSLock::up(unsigned short semNum)
 {
     int ret;
 
+#ifndef QT_POSIX_IPC
     sembuf sops = { semNum, 1, 0 };
     // As the BackingStore lock is a mutex, and only one process may own
     // the lock, it's safe to use SEM_UNDO. On the other hand, the
@@ -119,6 +171,9 @@ bool QWSLock::up(unsigned short semNum)
         sops.sem_flg |= SEM_UNDO;
 
     EINTR_LOOP(ret, semop(semId, &sops, 1));
+#else
+    ret = sem_post(sems[semNum]);
+#endif
     if (ret == -1) {
         qDebug("QWSLock::up(): %s", strerror(errno));
         return false;
@@ -131,6 +186,7 @@ bool QWSLock::down(unsigned short semNum, int)
 {
     int ret;
 
+#ifndef QT_POSIX_IPC
     sembuf sops = { semNum, -1, 0 };
     // As the BackingStore lock is a mutex, and only one process may own
     // the lock, it's safe to use SEM_UNDO. On the other hand, the
@@ -140,6 +196,9 @@ bool QWSLock::down(unsigned short semNum, int)
         sops.sem_flg |= SEM_UNDO;
 
     EINTR_LOOP(ret, semop(semId, &sops, 1));
+#else
+    EINTR_LOOP(ret, sem_wait(sems[semNum]));
+#endif
     if (ret == -1) {
         qDebug("QWSLock::down(): %s", strerror(errno));
         return false;
@@ -150,7 +209,13 @@ bool QWSLock::down(unsigned short semNum, int)
 
 int QWSLock::getValue(unsigned short semNum) const
 {
-    int ret = semctl(semId, semNum, GETVAL, 0);
+    int ret;
+#ifndef QT_POSIX_IPC
+    ret = semctl(semId, semNum, GETVAL, 0);
+#else
+    if (sem_getvalue(sems[semNum], &ret) == -1)
+        ret = -1;
+#endif
     if (ret == -1)
         qDebug("QWSLock::getValue(): %s", strerror(errno));
     return ret;
diff --git a/src/gui/embedded/qwslock_p.h b/src/gui/embedded/qwslock_p.h
index d020b22..71a4cca 100644
--- a/src/gui/embedded/qwslock_p.h
+++ b/src/gui/embedded/qwslock_p.h
@@ -57,6 +57,10 @@
 
 #ifndef QT_NO_QWS_MULTIPROCESS
 
+#ifdef QT_POSIX_IPC
+#  include <semaphore.h>
+#endif
+
 QT_BEGIN_NAMESPACE
 
 class QWSLock
@@ -80,6 +84,10 @@ private:
 
     int semId;
     int lockCount[2];
+#ifdef QT_POSIX_IPC
+    sem_t *sems[3];
+    bool owned;
+#endif
 };
 
 QT_END_NAMESPACE
diff --git a/src/gui/embedded/qwssharedmemory.cpp b/src/gui/embedded/qwssharedmemory.cpp
index a677626..853de61 100644
--- a/src/gui/embedded/qwssharedmemory.cpp
+++ b/src/gui/embedded/qwssharedmemory.cpp
@@ -45,14 +45,37 @@
 
 #include <sys/types.h>
 #include <sys/ipc.h>
+#ifndef QT_POSIX_IPC
 #include <sys/shm.h>
+#else
+#include <sys/mman.h>
+#include <sys/stat.h>
+#endif
+#include <fcntl.h>
+#include <unistd.h>
+
+#include <private/qcore_unix_p.h>
 
 //#define QT_SHM_DEBUG
 
 QT_BEGIN_NAMESPACE
 
+#ifdef QT_POSIX_IPC
+#include <QtCore/QAtomicInt>
+
+static QBasicAtomicInt localUniqueId = Q_BASIC_ATOMIC_INITIALIZER(1);
+
+static inline QByteArray makeKey(int id)
+{
+    return "/qwsshm_" + QByteArray::number(id, 16);
+}
+#endif
+
 QWSSharedMemory::QWSSharedMemory()
     : shmId(-1), shmBase(0), shmSize(0)
+#ifdef QT_POSIX_IPC
+    , hand(-1)
+#endif
 {
 }
 
@@ -66,19 +89,47 @@ bool QWSSharedMemory::create(int size)
     if (shmId != -1)
         detach();
 
+#ifndef QT_POSIX_IPC
     shmId = shmget(IPC_PRIVATE, size, IPC_CREAT | 0600);
+#else
+    // ### generate really unique IDs
+    shmId = (getpid() << 16) + (localUniqueId.fetchAndAddRelaxed(1) % ushort(-1));
+    QByteArray shmName = makeKey(shmId);
+    EINTR_LOOP(hand, shm_open(shmName.constData(), O_RDWR | O_CREAT, 0660));
+    if (hand != -1) {
+        // the size may only be set once; ignore errors
+        int ret;
+        EINTR_LOOP(ret, ftruncate(hand, size));
+        if (ret == -1)
+            shmId = -1;
+    } else {
+        shmId = -1;
+    }
+#endif
     if (shmId == -1) {
 #ifdef QT_SHM_DEBUG
         perror("QWSSharedMemory::create():");
         qWarning("Error allocating shared memory of size %d", size);
 #endif
+        detach();
         return false;
     }
+
+#ifndef QT_POSIX_IPC
     shmBase = shmat(shmId, 0, 0);
     // On Linux, it is possible to attach a shared memory segment even if it
     // is already marked to be deleted. However, POSIX.1-2001 does not specify
     // this behaviour and many other implementations do not support it.
     shmctl(shmId, IPC_RMID, 0);
+#else
+    // grab the size
+    QT_STATBUF st;
+    if (QT_FSTAT(hand, &st) != -1) {
+        shmSize = st.st_size;
+        // grab the memory
+        shmBase = mmap(0, shmSize, PROT_READ | PROT_WRITE, MAP_SHARED, hand, 0);
+    }
+#endif
     if (shmBase == (void*)-1 || !shmBase) {
 #ifdef QT_SHM_DEBUG
         perror("QWSSharedMemory::create():");
@@ -102,7 +153,21 @@ bool QWSSharedMemory::attach(int id)
         return false;
 
     shmId = id;
+#ifndef QT_POSIX_IPC
     shmBase = shmat(shmId, 0, 0);
+#else
+    QByteArray shmName = makeKey(shmId);
+    EINTR_LOOP(hand, shm_open(shmName.constData(), O_RDWR, 0660));
+    if (hand != -1) {
+        // grab the size
+        QT_STATBUF st;
+        if (QT_FSTAT(hand, &st) != -1) {
+            shmSize = st.st_size;
+            // grab the memory
+            shmBase = mmap(0, shmSize, PROT_READ | PROT_WRITE, MAP_SHARED, hand, 0);
+        }
+    }
+#endif
     if (shmBase == (void*)-1 || !shmBase) {
 #ifdef QT_SHM_DEBUG
         perror("QWSSharedMemory::attach():");
@@ -117,8 +182,28 @@ bool QWSSharedMemory::attach(int id)
 
 void QWSSharedMemory::detach()
 {
+#ifndef QT_POSIX_IPC
     if (shmBase && shmBase != (void*)-1)
         shmdt(shmBase);
+#else
+    if (shmBase && shmBase != (void*)-1)
+        munmap(shmBase, shmSize);
+    if (hand > 0) {
+        // get the number of current attachments
+        int shm_nattch = 0;
+        QT_STATBUF st;
+        if (QT_FSTAT(hand, &st) == 0) {
+            // subtract 2 from linkcount: one for our own open and one for the dir entry
+            shm_nattch = st.st_nlink - 2;
+        }
+        qt_safe_close(hand);
+        // if there are no attachments then unlink the shared memory
+        if (shm_nattch == 0) {
+            QByteArray shmName = makeKey(shmId);
+            shm_unlink(shmName.constData());
+        }
+    }
+#endif
     shmBase = 0;
     shmSize = 0;
     shmId = -1;
@@ -129,11 +214,13 @@ int QWSSharedMemory::size() const
     if (shmId == -1)
         return 0;
 
+#ifndef QT_POSIX_IPC
     if (!shmSize) {
         struct shmid_ds shm;
         shmctl(shmId, IPC_STAT, &shm);
-        const_cast<QWSSharedMemory *>(this)->shmSize = shm.shm_segsz;
+        shmSize = shm.shm_segsz;
     }
+#endif
 
     return shmSize;
 }
diff --git a/src/gui/embedded/qwssharedmemory_p.h b/src/gui/embedded/qwssharedmemory_p.h
index f3ce241..42ef6c8 100644
--- a/src/gui/embedded/qwssharedmemory_p.h
+++ b/src/gui/embedded/qwssharedmemory_p.h
@@ -77,7 +77,10 @@ public:
 private:
     int shmId;
     void *shmBase;
-    int shmSize;
+    mutable int shmSize;
+#ifdef QT_POSIX_IPC
+    int hand;
+#endif
 };
 
 #endif // QT_NO_QWS_MULTIPROCESS
diff --git a/src/gui/kernel/qapplication_qws.cpp b/src/gui/kernel/qapplication_qws.cpp
index abee361..3b6a075 100644
--- a/src/gui/kernel/qapplication_qws.cpp
+++ b/src/gui/kernel/qapplication_qws.cpp
@@ -209,7 +209,7 @@ QString qws_dataDir()
     if (!S_ISDIR(buf.st_mode))
         qFatal("%s is not a directory", dataDir.constData());
 
-#if !defined(Q_OS_INTEGRITY) && !defined(Q_OS_VXWORKS)
+#if !defined(Q_OS_INTEGRITY) && !defined(Q_OS_VXWORKS) && !defined(Q_OS_QNX)
     if (buf.st_uid != getuid())
         qFatal("Qt for Embedded Linux data directory is not owned by user %d", getuid());
 
diff --git a/src/gui/painting/qwindowsurface_qws.cpp b/src/gui/painting/qwindowsurface_qws.cpp
index 7e8cf9b..3789a33 100644
--- a/src/gui/painting/qwindowsurface_qws.cpp
+++ b/src/gui/painting/qwindowsurface_qws.cpp
@@ -1065,10 +1065,12 @@ bool QWSSharedMemSurface::setMemory(int memId)
         return true;
 
     mem.detach();
-    if (!mem.attach(memId)) {
+
+    if (memId != -1 && !mem.attach(memId)) {
+#ifndef QT_NO_DEBUG
         perror("QWSSharedMemSurface: attaching to shared memory");
-        qCritical("QWSSharedMemSurface: Error attaching to"
-                  " shared memory 0x%x", memId);
+        qCritical("QWSSharedMemSurface: Error attaching to shared memory 0x%x", memId);
+#endif
         return false;
     }
 
diff --git a/src/gui/text/qfontdatabase_qws.cpp b/src/gui/text/qfontdatabase_qws.cpp
index c83e929..313000f 100644
--- a/src/gui/text/qfontdatabase_qws.cpp
+++ b/src/gui/text/qfontdatabase_qws.cpp
@@ -75,6 +75,11 @@
 #include <qresource.h>
 #endif
 
+#ifdef Q_OS_QNX
+// ### using QFontEngineQPF leads to artifacts on QNX
+#  define QT_NO_QWS_SHARE_FONTS
+#endif
+
 QT_BEGIN_NAMESPACE
 
 #ifndef QT_NO_LIBRARY