X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=src%2Fjogshuttle.cpp;h=1d6688ed7e96e774e3d112c4fd165943a51ed860;hb=a7a883757867c177be234cb2a05bb9ce47cc562c;hp=362886362f2cd4a25e2fe9fe29aa5256cdaa70f6;hpb=2e13e777eb6c92f3b2b1c26263369156be6f7324;p=kdenlive diff --git a/src/jogshuttle.cpp b/src/jogshuttle.cpp index 36288636..1d6688ed 100644 --- a/src/jogshuttle.cpp +++ b/src/jogshuttle.cpp @@ -26,6 +26,7 @@ #include #include +#include #include #include @@ -68,7 +69,7 @@ #define JOG_STOP 10020 #define MAX_SHUTTLE_RANGE 7 -void ShuttleThread::init(QObject *parent, QString device) +void ShuttleThread::init(QObject *parent, const QString &device) { m_parent = parent; m_device = device; @@ -87,91 +88,107 @@ bool ShuttleThread::isWorking() void ShuttleThread::run() { kDebug() << "------- STARTING SHUTTLE: " << m_device; - /* open file descriptor */ - const int fd = KDE_open((char *) m_device.toUtf8().data(), O_RDONLY); - if (fd < 0) { - perror("Can't open Jog Shuttle FILE DESCRIPTOR"); - return; - } + struct media_ctrl mc; - EV ev; + // open device + media_ctrl_open2(&mc, m_device.toUtf8().data()); - if (ioctl(fd, EVIOCGRAB, 1) < 0) { - fprintf(stderr, "Can't get exclusive access on Jog Shuttle FILE DESCRIPTOR\n"); - close(fd); - return; - } + // on failure return + if (mc.fd < 0) { + perror("Can't open Jog Shuttle FILE DESCRIPTOR"); + return; + } - fd_set readset; + // init + int result; + fd_set readset; struct timeval timeout; - int num_warnings = 0; - int result, iof = -1; - /* enter thread loop */ while (!stop_me) { /* reset the read set */ FD_ZERO(&readset); - FD_SET(fd, &readset); + FD_SET(mc.fd, &readset); - /* reinit the timeout structure */ + // reinit the timeout structure timeout.tv_sec = 0; timeout.tv_usec = 400000; /* 400 ms */ - /* do select in blocked mode and wake up after timeout for eval stop_me */ - result = select(fd+1, &readset, NULL, NULL, &timeout); + // do select in blocked mode and wake up after timeout + // for stop_me evaluation + result = select(mc.fd + 1, &readset, NULL, NULL, &timeout); /* see if there was an error or timeout else process event */ - if (result < 0) { - /* usually this is a condition for exit but EINTR error is sometimes - * thrown under special circumstances. I think its ok to ignore this - * if its not too often */ + if (result < 0 && errno == EINTR) { + // EINTR event catched. This is not a problem - continue processing kDebug() << strerror(errno) << "\n"; - } else if (result == 0) { - /* do nothing. reserved for future purposes */ - } else { - /* we have input */ - if (FD_ISSET(fd, &readset)) { - /* get fd settings */ - if ((iof = fcntl(fd, F_GETFL, 0)) != -1) { - /* set fd non blocking */ - fcntl(fd, F_SETFL, iof | O_NONBLOCK); - /* read input */ - if (read(fd, &ev, sizeof(ev)) < 0) { - if (num_warnings % 10000 == 0) { - /* if device is not available anymore - dead or disconnected */ - fprintf(stderr, "Failed to read event from Jog Shuttle FILE DESCRIPTOR (repeated %d times)\n", num_warnings + 1); - } - /* exit if device is not available or the error occurs to long */ - if (errno == ENODEV) { - perror("Failed to read from Jog Shuttle FILE DESCRIPTOR. Stop thread"); - /* stop thread */ - stop_me = true; - } else if (num_warnings > 1000000) { - perror("Failed to read from Jog Shuttle FILE DESCRIPTOR. Limit reached. Stop thread"); - /* stop thread */ - stop_me = true; - } - num_warnings++; - } - /* restore settings */ - if (iof != -1) { - fcntl(fd, F_SETFL, iof); - } - /* process event */ - handle_event(ev); - } else { - fprintf(stderr, "Can't set Jog Shuttle FILE DESCRIPTOR to O_NONBLOCK and stop thread\n"); - stop_me = true; - } + // continue processing + continue; + } else if (result < 0) { + /* stop thread */ + stop_me = true; + kDebug() << strerror(errno) << "\n"; + } else if (result > 0) { + // we have input + if (FD_ISSET(mc.fd, &readset)) { + struct media_ctrl_event mev; + mev.type = MEDIA_CTRL_EVENT_NONE; + // read input + media_ctrl_read_event(&mc, &mev); + // process event + handle_event(mev); } + } else if (result == 0) { + // on timeout. let it here for debug } } + kDebug() << "------- STOPPING SHUTTLE: "; /* close the handle and return thread */ - close(fd); + media_ctrl_close(&mc); +} + +void ShuttleThread::handle_event(const struct media_ctrl_event& ev) +{ + if (ev.type == MEDIA_CTRL_EVENT_KEY) + key(ev); + else if (ev.type == MEDIA_CTRL_EVENT_JOG) + jog(ev); + else if (ev.type == MEDIA_CTRL_EVENT_SHUTTLE) + shuttle(ev); +} + +void ShuttleThread::key(const struct media_ctrl_event& ev) +{ + if (ev.value == KEY_PRESS) { + int code = ev.index + 1; + QApplication::postEvent(m_parent, + new QEvent((QEvent::Type)(KEY_EVENT_OFFSET + code))); + } +} + +void ShuttleThread::shuttle(const struct media_ctrl_event& ev) +{ + int value = ev.value / 2; + + if (value > MAX_SHUTTLE_RANGE || value < -MAX_SHUTTLE_RANGE) { + kDebug() << "Jog shuttle value is out of range: " << MAX_SHUTTLE_RANGE; + return; + } + + QApplication::postEvent(m_parent, + new QEvent((QEvent::Type) (JOG_STOP + (value)))); +} + +void ShuttleThread::jog(const struct media_ctrl_event& ev) +{ + if (ev.value < 0) + QApplication::postEvent(m_parent, new QEvent((QEvent::Type) JOG_BACK1)); + else if (ev.value > 0) + QApplication::postEvent(m_parent, new QEvent((QEvent::Type) JOG_FWD1)); } +#ifdef USE_DEPRECATED void ShuttleThread::handle_event(EV ev) { switch (ev.type) { @@ -257,9 +274,9 @@ void ShuttleThread::jog(unsigned int value) jogvalue = value; if (shuttlecounter > 0) shuttlecounter++; } +#endif // USE_DEPRECATED - -JogShuttle::JogShuttle(QString device, QObject *parent) : +JogShuttle::JogShuttle(const QString &device, QObject *parent) : QObject(parent) { initDevice(device); @@ -270,12 +287,15 @@ JogShuttle::~JogShuttle() stopDevice(); } -void JogShuttle::initDevice(QString device) +void JogShuttle::initDevice(const QString &device) { if (m_shuttleProcess.isRunning()) { - if (device == m_shuttleProcess.m_device) return; + if (device == m_shuttleProcess.m_device) + return; + stopDevice(); } + m_shuttleProcess.init(this, device); m_shuttleProcess.start(QThread::LowestPriority); } @@ -301,16 +321,17 @@ void JogShuttle::customEvent(QEvent* e) { int code = e->type(); - // Handle simple job events + // handle simple job events switch (code) { - case JOG_BACK1: - emit jogBack(); - return; - case JOG_FWD1: - emit jogForward(); - return; + case JOG_BACK1: + emit jogBack(); + return; + case JOG_FWD1: + emit jogForward(); + return; } + // FIXME: this is a bad shuttle indication int shuttle_pos = code - JOG_STOP; if (shuttle_pos >= -MAX_SHUTTLE_RANGE && shuttle_pos <= MAX_SHUTTLE_RANGE) { emit shuttlePos(shuttle_pos); @@ -318,11 +339,58 @@ void JogShuttle::customEvent(QEvent* e) } // we've got a key event. - //fprintf(stderr, "Firing button event for #%d\n", e->type() - KEY_EVENT_OFFSET); // DBG emit button(e->type() - KEY_EVENT_OFFSET); } +QString JogShuttle::canonicalDevice(const QString& device) +{ + return QDir(device).canonicalPath(); +} + +DeviceMap JogShuttle::enumerateDevices(const QString& devPath) +{ + DeviceMap devs; + QDir devDir(devPath); + + if (!devDir.exists()) { + return devs; + } + + QStringList fileList = devDir.entryList(QDir::System | QDir::Files); + foreach (const QString &fileName, fileList) { + QString devFullPath = devDir.absoluteFilePath(fileName); + QString fileLink = JogShuttle::canonicalDevice(devFullPath); + kDebug() << QString(" [%1] ").arg(fileName); + kDebug() << QString(" [%1] ").arg(fileLink); + + struct media_ctrl mc; + media_ctrl_open2(&mc, (char*)fileLink.toUtf8().data()); + if (mc.fd > 0 && mc.device) { + devs.insert(QString(mc.device->name), devFullPath); + kDebug() << QString(" [keys-count=%1] ").arg( + media_ctrl_get_keys_count(&mc)); + } + media_ctrl_close(&mc); + } + + return devs; +} + +int JogShuttle::keysCount(const QString& devPath) +{ + struct media_ctrl mc; + int keysCount = 0; + + QString fileLink = canonicalDevice(devPath); + media_ctrl_open2(&mc, (char*)fileLink.toUtf8().data()); + if (mc.fd > 0 && mc.device) { + keysCount = media_ctrl_get_keys_count(&mc); + } + return keysCount; +} // #include "jogshuttle.moc" + +#include "jogshuttle.moc"