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| ****************************************************************************/ |
| |
| #include "camerabinlocks.h" |
| #include "camerabinsession.h" |
| #include "camerabinfocus.h" |
| #include "camerabinimageprocessing.h" |
| |
| #include <QtCore/qcoreevent.h> |
| |
| #include <gst/interfaces/photography.h> |
| |
| #include <QDebug> |
| |
| QT_BEGIN_NAMESPACE |
| |
| CameraBinLocks::CameraBinLocks(CameraBinSession *session) |
| :QCameraLocksControl(session), |
| m_session(session), |
| m_focus(m_session->cameraFocusControl()) |
| { |
| connect(m_focus, SIGNAL(_q_focusStatusChanged(QCamera::LockStatus,QCamera::LockChangeReason)), |
| this, SLOT(updateFocusStatus(QCamera::LockStatus,QCamera::LockChangeReason))); |
| } |
| |
| CameraBinLocks::~CameraBinLocks() |
| { |
| } |
| |
| QCamera::LockTypes CameraBinLocks::supportedLocks() const |
| { |
| QCamera::LockTypes locks = QCamera::LockFocus; |
| |
| #if GST_CHECK_VERSION(1, 2, 0) |
| if (GstPhotography *photography = m_session->photography()) { |
| if (gst_photography_get_capabilities(photography) & GST_PHOTOGRAPHY_CAPS_WB_MODE) |
| locks |= QCamera::LockWhiteBalance; |
| |
| if (GstElement *source = m_session->cameraSource()) { |
| if (g_object_class_find_property( |
| G_OBJECT_GET_CLASS(source), "exposure-mode")) { |
| locks |= QCamera::LockExposure; |
| } |
| } |
| } |
| #endif |
| |
| return locks; |
| } |
| |
| QCamera::LockStatus CameraBinLocks::lockStatus(QCamera::LockType lock) const |
| { |
| switch (lock) { |
| case QCamera::LockFocus: |
| return m_focus->focusStatus(); |
| #if GST_CHECK_VERSION(1, 2, 0) |
| case QCamera::LockExposure: |
| if (m_pendingLocks & QCamera::LockExposure) |
| return QCamera::Searching; |
| return isExposureLocked() ? QCamera::Locked : QCamera::Unlocked; |
| case QCamera::LockWhiteBalance: |
| if (m_pendingLocks & QCamera::LockWhiteBalance) |
| return QCamera::Searching; |
| return isWhiteBalanceLocked() ? QCamera::Locked : QCamera::Unlocked; |
| #endif |
| default: |
| return QCamera::Unlocked; |
| } |
| } |
| |
| void CameraBinLocks::searchAndLock(QCamera::LockTypes locks) |
| { |
| m_pendingLocks &= ~locks; |
| |
| if (locks & QCamera::LockFocus) { |
| m_pendingLocks |= QCamera::LockFocus; |
| m_focus->_q_startFocusing(); |
| } |
| #if GST_CHECK_VERSION(1, 2, 0) |
| if (!m_pendingLocks) |
| m_lockTimer.stop(); |
| |
| if (locks & QCamera::LockExposure) { |
| if (isExposureLocked()) { |
| unlockExposure(QCamera::Searching, QCamera::UserRequest); |
| m_pendingLocks |= QCamera::LockExposure; |
| m_lockTimer.start(1000, this); |
| } else { |
| lockExposure(QCamera::UserRequest); |
| } |
| } |
| if (locks & QCamera::LockWhiteBalance) { |
| if (isWhiteBalanceLocked()) { |
| unlockWhiteBalance(QCamera::Searching, QCamera::UserRequest); |
| m_pendingLocks |= QCamera::LockWhiteBalance; |
| m_lockTimer.start(1000, this); |
| } else { |
| lockWhiteBalance(QCamera::UserRequest); |
| } |
| } |
| #endif |
| |
| } |
| |
| void CameraBinLocks::unlock(QCamera::LockTypes locks) |
| { |
| m_pendingLocks &= ~locks; |
| |
| if (locks & QCamera::LockFocus) |
| m_focus->_q_stopFocusing(); |
| |
| #if GST_CHECK_VERSION(1, 2, 0) |
| if (!m_pendingLocks) |
| m_lockTimer.stop(); |
| |
| if (locks & QCamera::LockExposure) |
| unlockExposure(QCamera::Unlocked, QCamera::UserRequest); |
| if (locks & QCamera::LockWhiteBalance) |
| unlockWhiteBalance(QCamera::Unlocked, QCamera::UserRequest); |
| #endif |
| } |
| |
| void CameraBinLocks::updateFocusStatus(QCamera::LockStatus status, QCamera::LockChangeReason reason) |
| { |
| if (status != QCamera::Searching) |
| m_pendingLocks &= ~QCamera::LockFocus; |
| |
| #if GST_CHECK_VERSION(1, 2, 0) |
| if (status == QCamera::Locked && !m_lockTimer.isActive()) { |
| if (m_pendingLocks & QCamera::LockExposure) |
| lockExposure(QCamera::LockAcquired); |
| if (m_pendingLocks & QCamera::LockWhiteBalance) |
| lockWhiteBalance(QCamera::LockAcquired); |
| } |
| #endif |
| emit lockStatusChanged(QCamera::LockFocus, status, reason); |
| } |
| |
| #if GST_CHECK_VERSION(1, 2, 0) |
| |
| void CameraBinLocks::timerEvent(QTimerEvent *event) |
| { |
| if (event->timerId() != m_lockTimer.timerId()) |
| return QCameraLocksControl::timerEvent(event); |
| |
| m_lockTimer.stop(); |
| |
| if (!(m_pendingLocks & QCamera::LockFocus)) { |
| if (m_pendingLocks & QCamera::LockExposure) |
| lockExposure(QCamera::LockAcquired); |
| if (m_pendingLocks & QCamera::LockWhiteBalance) |
| lockWhiteBalance(QCamera::LockAcquired); |
| } |
| } |
| |
| bool CameraBinLocks::isExposureLocked() const |
| { |
| if (GstElement *source = m_session->cameraSource()) { |
| GstPhotographyExposureMode exposureMode = GST_PHOTOGRAPHY_EXPOSURE_MODE_AUTO; |
| g_object_get (G_OBJECT(source), "exposure-mode", &exposureMode, NULL); |
| return exposureMode == GST_PHOTOGRAPHY_EXPOSURE_MODE_MANUAL; |
| } else { |
| return false; |
| } |
| } |
| |
| void CameraBinLocks::lockExposure(QCamera::LockChangeReason reason) |
| { |
| GstElement *source = m_session->cameraSource(); |
| if (!source) |
| return; |
| |
| m_pendingLocks &= ~QCamera::LockExposure; |
| g_object_set( |
| G_OBJECT(source), |
| "exposure-mode", |
| GST_PHOTOGRAPHY_EXPOSURE_MODE_MANUAL, |
| NULL); |
| emit lockStatusChanged(QCamera::LockExposure, QCamera::Locked, reason); |
| } |
| |
| void CameraBinLocks::unlockExposure(QCamera::LockStatus status, QCamera::LockChangeReason reason) |
| { |
| GstElement *source = m_session->cameraSource(); |
| if (!source) |
| return; |
| |
| g_object_set( |
| G_OBJECT(source), |
| "exposure-mode", |
| GST_PHOTOGRAPHY_EXPOSURE_MODE_AUTO, |
| NULL); |
| emit lockStatusChanged(QCamera::LockExposure, status, reason); |
| } |
| |
| bool CameraBinLocks::isWhiteBalanceLocked() const |
| { |
| if (GstPhotography *photography = m_session->photography()) { |
| GstPhotographyWhiteBalanceMode whiteBalanceMode; |
| return gst_photography_get_white_balance_mode(photography, &whiteBalanceMode) |
| && whiteBalanceMode == GST_PHOTOGRAPHY_WB_MODE_MANUAL; |
| } else { |
| return false; |
| } |
| } |
| |
| void CameraBinLocks::lockWhiteBalance(QCamera::LockChangeReason reason) |
| { |
| m_pendingLocks &= ~QCamera::LockWhiteBalance; |
| m_session->imageProcessingControl()->lockWhiteBalance(); |
| emit lockStatusChanged(QCamera::LockWhiteBalance, QCamera::Locked, reason); |
| } |
| |
| void CameraBinLocks::unlockWhiteBalance( |
| QCamera::LockStatus status, QCamera::LockChangeReason reason) |
| { |
| m_session->imageProcessingControl()->lockWhiteBalance(); |
| emit lockStatusChanged(QCamera::LockWhiteBalance, status, reason); |
| } |
| |
| #endif |
| |
| QT_END_NAMESPACE |
