X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=src%2Fjogshuttle.cpp;h=1d6688ed7e96e774e3d112c4fd165943a51ed860;hb=a7a883757867c177be234cb2a05bb9ce47cc562c;hp=752869a721b57e8ee58c374817f736478a9cf6c6;hpb=a0b31d454dcbbd7c31f1dca4cd22c71da61e8920;p=kdenlive diff --git a/src/jogshuttle.cpp b/src/jogshuttle.cpp index 752869a7..1d6688ed 100644 --- a/src/jogshuttle.cpp +++ b/src/jogshuttle.cpp @@ -26,11 +26,14 @@ #include #include +#include #include #include #include #include +#include +#include #include #define DELAY 10 @@ -60,23 +63,20 @@ // Constants for the signals sent. #define JOG_BACK1 10001 #define JOG_FWD1 10002 +#define KEY_EVENT_OFFSET 20000 // middle value for shuttle, will be +/-MAX_SHUTTLE_RANGE -#define JOG_STOP 10010 +#define JOG_STOP 10020 #define MAX_SHUTTLE_RANGE 7 -// TODO(fleury): this should probably be a user configuration parameter (at least the max speed). -const double SPEEDS[MAX_SHUTTLE_RANGE + 1] = {0.0, 0.5, 1.0, 2.0, 4.0, 8.0, 16.0, 32.0}; - - -void ShuttleThread::init(QObject *parent, QString device) +void ShuttleThread::init(QObject *parent, const QString &device) { m_parent = parent; m_device = device; stop_me = false; m_isWorking = false; shuttlevalue = 0xffff; - shuttlechange = false; + shuttlecounter = 0; jogvalue = 0xffff; } @@ -87,33 +87,108 @@ bool ShuttleThread::isWorking() void ShuttleThread::run() { - kDebug() << "------- STARTING SHUTTLE: " << m_device; + kDebug() << "------- STARTING SHUTTLE: " << m_device; + struct media_ctrl mc; + + // open device + media_ctrl_open2(&mc, m_device.toUtf8().data()); - const int fd = KDE_open((char *) m_device.toUtf8().data(), O_RDONLY); - if (fd < 0) { - fprintf(stderr, "Can't open Jog Shuttle FILE DESCRIPTOR\n"); - return;; + // on failure return + if (mc.fd < 0) { + perror("Can't open Jog Shuttle FILE DESCRIPTOR"); + return; } - EV ev; - if (ioctl(fd, EVIOCGRAB, 1) < 0) { - fprintf(stderr, "Can't get exclusive access on Jog Shuttle FILE DESCRIPTOR\n"); - return;; + // init + int result; + fd_set readset; + struct timeval timeout; + + /* enter thread loop */ + while (!stop_me) { + /* reset the read set */ + FD_ZERO(&readset); + FD_SET(mc.fd, &readset); + + // 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 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 && errno == EINTR) { + // EINTR event catched. This is not a problem - continue processing + kDebug() << strerror(errno) << "\n"; + // 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 */ + 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))); } +} - int num_warnings = 0; - while (!stop_me) { - if (read(fd, &ev, sizeof(ev)) < 0) { - if (num_warnings % 100 == 0) - fprintf(stderr, "Failed to read event from Jog Shuttle FILE DESCRIPTOR (repeated %d times)\n", num_warnings + 1); - num_warnings++; - } - handle_event(ev); +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; } - close(fd); + 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) { @@ -141,8 +216,8 @@ void ShuttleThread::key(unsigned short code, unsigned int value) if (code > 16) return; - kDebug() << "Button PRESSED: " << code; - QApplication::postEvent(m_parent, new QEvent((QEvent::Type)(20000 + code))); + //kDebug() << "Button PRESSED: " << code; + QApplication::postEvent(m_parent, new QEvent((QEvent::Type)(KEY_EVENT_OFFSET + code))); } @@ -151,16 +226,18 @@ void ShuttleThread::shuttle(int value) //gettimeofday( &last_shuttle, 0 ); //need_synthetic_shuttle = value != 0; - if (value == shuttlevalue) + if (value == shuttlevalue) { + shuttlecounter = 1; return; + } if (value > MAX_SHUTTLE_RANGE || value < -MAX_SHUTTLE_RANGE) { fprintf(stderr, "Jog Shuttle returned value of %d (should be between -%d ad +%d)", value, MAX_SHUTTLE_RANGE, MAX_SHUTTLE_RANGE); return; } shuttlevalue = value; - shuttlechange = true; - QApplication::postEvent(m_parent, new QEvent((QEvent::Type)(JOG_STOP + value))); + shuttlecounter = 1; + QApplication::postEvent(m_parent, new QEvent((QEvent::Type) (JOG_STOP + value))); } void ShuttleThread::jog(unsigned int value) @@ -186,18 +263,20 @@ void ShuttleThread::jog(unsigned int value) QApplication::postEvent(m_parent, new QEvent((QEvent::Type) JOG_BACK1)); else if ((forward && !wrap) || (rewind && wrap)) QApplication::postEvent(m_parent, new QEvent((QEvent::Type) JOG_FWD1)); - else if (!forward && !rewind && !shuttlechange) + else if (!forward && !rewind && shuttlecounter > 2) { // An event without changing the jog value is sent after each shuttle change. // As the shuttle rest position does not get a shuttle event, only a non-position-changing jog event. // Hence we stop on this when we see 2 non-position-changing jog events in a row. + shuttlecounter = 0; QApplication::postEvent(m_parent, new QEvent((QEvent::Type) JOG_STOP)); + } } jogvalue = value; - shuttlechange = false; + if (shuttlecounter > 0) shuttlecounter++; } +#endif // USE_DEPRECATED - -JogShuttle::JogShuttle(QString device, QObject *parent) : +JogShuttle::JogShuttle(const QString &device, QObject *parent) : QObject(parent) { initDevice(device); @@ -205,63 +284,113 @@ JogShuttle::JogShuttle(QString device, QObject *parent) : JogShuttle::~JogShuttle() { - if (m_shuttleProcess.isRunning()) m_shuttleProcess.exit(); + 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); } void JogShuttle::stopDevice() { - if (m_shuttleProcess.isRunning()) + if (m_shuttleProcess.isRunning()) { + /* tell thread to stop */ m_shuttleProcess.stop_me = true; + m_shuttleProcess.exit(); + /* give the thread some time (ms) to shutdown */ + m_shuttleProcess.wait(600); + + /* if still running - do it in the hardcore way */ + if (m_shuttleProcess.isRunning()) { + m_shuttleProcess.terminate(); + kDebug() << "/// terminate jogshuttle process\n"; + } + } } void JogShuttle::customEvent(QEvent* e) { int code = e->type(); - // Handle the job events - if (code == JOG_BACK1) { - emit rewind1(); - return; + // handle simple job events + switch (code) { + case JOG_BACK1: + emit jogBack(); + return; + case JOG_FWD1: + emit jogForward(); + return; } - if (code == JOG_FWD1) { - emit forward1(); + + // 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); return; } - //handle the shuttle events - if (code == JOG_STOP) { - // TODO(fleury): to make sure stop() has an effect, as it doesn't when in rewind mode, we set it to forward with - // a value that will for sure not move to the next frame. - if (m_shuttleProcess.shuttlevalue < 0) - emit forward(0.01); - emit stop(); - return; + // we've got a key event. + 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; } - int shuttle = code - JOG_STOP; - if (shuttle >= -MAX_SHUTTLE_RANGE && shuttle <= MAX_SHUTTLE_RANGE) { - if (shuttle < 0) - emit rewind(-SPEEDS[abs(shuttle)]); - else - emit forward(SPEEDS[abs(shuttle)]); - return; + 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); } - // we've got a key event. - emit button(e->type() - 20000); + 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"