X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=src%2Fjogshuttle.cpp;h=1d6688ed7e96e774e3d112c4fd165943a51ed860;hb=a7a883757867c177be234cb2a05bb9ce47cc562c;hp=e94a17f028909866f1e4492e1d69a6d7d6d71ff6;hpb=5ee798aed90c5a3a50024e6b5bd26753e03ec7cc;p=kdenlive diff --git a/src/jogshuttle.cpp b/src/jogshuttle.cpp index e94a17f0..1d6688ed 100644 --- a/src/jogshuttle.cpp +++ b/src/jogshuttle.cpp @@ -26,14 +26,16 @@ #include #include +#include #include #include #include #include +#include +#include #include - #define DELAY 10 #define KEY 1 @@ -53,28 +55,28 @@ #define KEY14 269 #define KEY15 270 +// Constants for the returned events when reading them from the device #define JOGSHUTTLE 2 #define JOG 7 #define SHUTTLE 8 +// Constants for the signals sent. #define JOG_BACK1 10001 #define JOG_FWD1 10002 -#define JOG_FWD 10003 -#define JOG_FWD_SLOW 10004 -#define JOG_FWD_FAST 10005 -#define JOG_BACK 10006 -#define JOG_BACK_SLOW 10007 -#define JOG_BACK_FAST 10008 -#define JOG_STOP 10009 +#define KEY_EVENT_OFFSET 20000 +// middle value for shuttle, will be +/-MAX_SHUTTLE_RANGE +#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; stop_me = false; m_isWorking = false; shuttlevalue = 0xffff; + shuttlecounter = 0; jogvalue = 0xffff; } @@ -85,30 +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))); } +} - while (!stop_me) { - if (read(fd, &ev, sizeof(ev)) < 0) { - fprintf(stderr, "Failed to read event from Jog Shuttle FILE DESCRIPTOR\n"); - } - 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) { @@ -116,7 +196,10 @@ void ShuttleThread::handle_event(EV ev) key(ev.code, ev.value); break; case JOGSHUTTLE : - jogshuttle(ev.code, ev.value); + if (ev.code == JOG) + jog(ev.value); + if (ev.code == SHUTTLE) + shuttle(ev.value); break; } } @@ -128,14 +211,13 @@ void ShuttleThread::key(unsigned short code, unsigned int value) return; } + // Check key index code -= KEY1 - 1; - - // Bound check! 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))); } @@ -144,73 +226,57 @@ void ShuttleThread::shuttle(int value) //gettimeofday( &last_shuttle, 0 ); //need_synthetic_shuttle = value != 0; - if (value == shuttlevalue) + if (value == shuttlevalue) { + shuttlecounter = 1; return; - shuttlevalue = value; - switch (value) { - case - 7 : - case - 6 : - case - 5 : - case - 4 : - case - 3 : - QApplication::postEvent(m_parent, new QEvent((QEvent::Type) JOG_BACK_FAST)); - break; // Reverse fast - case - 2 : - QApplication::postEvent(m_parent, new QEvent((QEvent::Type) JOG_BACK)); - break; // Reverse - case - 1 : - QApplication::postEvent(m_parent, new QEvent((QEvent::Type) JOG_BACK_SLOW)); - break; // Reverse slow - case 0 : - QApplication::postEvent(m_parent, new QEvent((QEvent::Type) JOG_STOP)); - break; // Stop! - case 1 : - QApplication::postEvent(m_parent, new QEvent((QEvent::Type) JOG_FWD_SLOW)); - break; // Forward slow - case 2 : - QApplication::postEvent(m_parent, new QEvent((QEvent::Type) JOG_FWD)); - break; // Normal play - case 3 : - case 4 : - case 5 : - case 6 : - case 7 : - QApplication::postEvent(m_parent, new QEvent((QEvent::Type) JOG_FWD_FAST)); - break; // Fast forward } + 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; + shuttlecounter = 1; + QApplication::postEvent(m_parent, new QEvent((QEvent::Type) (JOG_STOP + value))); } void ShuttleThread::jog(unsigned int value) { - // We should generate a synthetic event for the shuttle going - // to the home position if we have not seen one recently - //check_synthetic(); - + // generate a synthetic event for the shuttle going + // to the home position if we have not seen one recently. + //if (shuttlevalue != 0) { + // QApplication::postEvent(m_parent, new QEvent((QEvent::Type) JOG_STOP)); + // shuttlevalue = 0; + //} + + // This code takes care of wrapping around the limits of the jog dial number (it is represented as a single byte, hence + // wraps at the 0/255 boundary). I used 25 as the difference to make sure that even in heavy load, with the jog dial + // turning fast and we miss some events that we do not mistakenly reverse the direction. + // Note also that at least the Contour ShuttlePRO v2 does not send an event for the value 0, so at the wrap it will + // need 2 events to go forward. But that is nothing we can do about... if (jogvalue != 0xffff) { - if (value < jogvalue) + //fprintf(stderr, "value=%d jogvalue=%d\n", value, jogvalue); + bool wrap = abs(value - jogvalue) > 25; + bool rewind = value < jogvalue; + bool forward = value > jogvalue; + if ((rewind && !wrap) || (forward && wrap)) QApplication::postEvent(m_parent, new QEvent((QEvent::Type) JOG_BACK1)); - else if (value > jogvalue) + else if ((forward && !wrap) || (rewind && wrap)) QApplication::postEvent(m_parent, new QEvent((QEvent::Type) JOG_FWD1)); + 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; + if (shuttlecounter > 0) shuttlecounter++; } +#endif // USE_DEPRECATED - -void ShuttleThread::jogshuttle(unsigned short code, unsigned int value) -{ - switch (code) { - case JOG : - jog(value); - break; - case SHUTTLE : - shuttle(value); - break; - } -} - - -JogShuttle::JogShuttle(QString device, QObject *parent) : +JogShuttle::JogShuttle(const QString &device, QObject *parent) : QObject(parent) { initDevice(device); @@ -218,57 +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()) return; + if (m_shuttleProcess.isRunning()) { + 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()) m_shuttleProcess.stop_me = true; + 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) { - switch (e->type()) { - case JOG_BACK1: - emit rewind1(); - break; - case JOG_FWD1: - emit forward1(); - break; - case JOG_BACK: - emit rewind(-1); - break; - case JOG_FWD: - emit forward(1); - break; - case JOG_BACK_SLOW: - emit rewind(-0.5); - break; - case JOG_FWD_SLOW: - emit forward(0.5); - break; - case JOG_BACK_FAST: - emit rewind(-2); - break; - case JOG_FWD_FAST: - emit forward(2); - break; - case JOG_STOP: - emit stop(); - break; - default: - emit button(e->type() - 20000); + int code = e->type(); + + // handle simple job events + switch (code) { + 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); + 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; } + + 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"