Initial copy of QtMultimediaKit.
Comes from original repo, with SHA1: 2c82d5611655e5967f5c5095af50c0991c4378b2
This commit is contained in:
Michael Goddard
245
src/plugins/gstreamer/camerabin/camerabinfocus.cpp
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245
src/plugins/gstreamer/camerabin/camerabinfocus.cpp
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/****************************************************************************
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**
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** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
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** All rights reserved.
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** This file is part of the Qt Mobility Components.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** No Commercial Usage
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** This file contains pre-release code and may not be distributed.
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** You may use this file in accordance with the terms and conditions
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** contained in the Technology Preview License Agreement accompanying
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** this package.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights. These rights are described in the Nokia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** If you have questions regarding the use of this file, please contact
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** Nokia at qt-info@nokia.com.
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**
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**
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**
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**
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**
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**
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "camerabinfocus.h"
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#include "camerabinsession.h"
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#include <gst/interfaces/photography.h>
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#include <QDebug>
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#include <QtCore/qmetaobject.h>
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//#define CAMERABIN_DEBUG 1
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#define ENUM_NAME(c,e,v) (c::staticMetaObject.enumerator(c::staticMetaObject.indexOfEnumerator(e)).valueToKey((v)))
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CameraBinFocus::CameraBinFocus(CameraBinSession *session)
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:QCameraFocusControl(session),
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m_session(session),
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m_focusMode(QCameraFocus::AutoFocus),
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m_focusStatus(QCamera::Unlocked),
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m_focusZoneStatus(QCameraFocusZone::Selected)
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{
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connect(m_session, SIGNAL(stateChanged(QCamera::State)),
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this, SLOT(_q_handleCameraStateChange(QCamera::State)));
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connect(m_session, SIGNAL(imageCaptured(int,QImage)),
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this, SLOT(_q_handleCapturedImage()));
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}
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CameraBinFocus::~CameraBinFocus()
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{
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}
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QCameraFocus::FocusMode CameraBinFocus::focusMode() const
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{
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return m_focusMode;
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}
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void CameraBinFocus::setFocusMode(QCameraFocus::FocusMode mode)
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{
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if (isFocusModeSupported(mode)) {
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m_focusMode = mode;
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}
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}
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bool CameraBinFocus::isFocusModeSupported(QCameraFocus::FocusMode mode) const
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{
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return mode & QCameraFocus::AutoFocus;
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}
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qreal CameraBinFocus::maximumOpticalZoom() const
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{
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return 1.0;
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}
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qreal CameraBinFocus::maximumDigitalZoom() const
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{
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return 10;
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}
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qreal CameraBinFocus::opticalZoom() const
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{
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return 1.0;
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}
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qreal CameraBinFocus::digitalZoom() const
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{
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#ifdef Q_WS_MAEMO_5
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gint zoomFactor = 0;
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g_object_get(GST_BIN(m_session->cameraBin()), "zoom", &zoomFactor, NULL);
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return zoomFactor/100.0;
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#else
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gfloat zoomFactor = 1.0;
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g_object_get(GST_BIN(m_session->cameraBin()), "zoom", &zoomFactor, NULL);
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return zoomFactor;
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#endif
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}
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void CameraBinFocus::zoomTo(qreal optical, qreal digital)
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{
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Q_UNUSED(optical);
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digital = qBound(qreal(1.0), digital, qreal(10.0));
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#ifdef Q_WS_MAEMO_5
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g_object_set(GST_BIN(m_session->cameraBin()), "zoom", qRound(digital*100.0), NULL);
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#else
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g_object_set(GST_BIN(m_session->cameraBin()), "zoom", digital, NULL);
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#endif
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emit digitalZoomChanged(digital);
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}
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QCameraFocus::FocusPointMode CameraBinFocus::focusPointMode() const
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{
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return QCameraFocus::FocusPointAuto;
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}
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void CameraBinFocus::setFocusPointMode(QCameraFocus::FocusPointMode mode)
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{
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Q_UNUSED(mode);
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}
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bool CameraBinFocus::isFocusPointModeSupported(QCameraFocus::FocusPointMode mode) const
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{
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return mode == QCameraFocus::FocusPointAuto;
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}
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QPointF CameraBinFocus::customFocusPoint() const
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{
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return QPointF(0.5, 0.5);
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}
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void CameraBinFocus::setCustomFocusPoint(const QPointF &point)
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{
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Q_UNUSED(point);
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}
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QCameraFocusZoneList CameraBinFocus::focusZones() const
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{
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return QCameraFocusZoneList() << QCameraFocusZone(QRectF(0.35, 0.35, 0.3, 0.3), m_focusZoneStatus);
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}
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void CameraBinFocus::handleFocusMessage(GstMessage *gm)
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{
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//it's a sync message, so it's called from non main thread
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if (gst_structure_has_name(gm->structure, GST_PHOTOGRAPHY_AUTOFOCUS_DONE)) {
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gint status = GST_PHOTOGRAPHY_FOCUS_STATUS_NONE;
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gst_structure_get_int (gm->structure, "status", &status);
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QCamera::LockStatus focusStatus = m_focusStatus;
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QCamera::LockChangeReason reason = QCamera::UserRequest;
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switch (status) {
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case GST_PHOTOGRAPHY_FOCUS_STATUS_FAIL:
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focusStatus = QCamera::Unlocked;
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reason = QCamera::LockFailed;
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break;
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case GST_PHOTOGRAPHY_FOCUS_STATUS_SUCCESS:
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focusStatus = QCamera::Locked;
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break;
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case GST_PHOTOGRAPHY_FOCUS_STATUS_NONE:
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break;
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case GST_PHOTOGRAPHY_FOCUS_STATUS_RUNNING:
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focusStatus = QCamera::Searching;
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break;
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default:
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break;
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}
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static int signalIndex = metaObject()->indexOfSlot(
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"_q_setFocusStatus(QCamera::LockStatus,QCamera::LockChangeReason)");
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metaObject()->method(signalIndex).invoke(this,
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Qt::QueuedConnection,
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Q_ARG(QCamera::LockStatus,focusStatus),
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Q_ARG(QCamera::LockChangeReason,reason));
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}
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}
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void CameraBinFocus::_q_setFocusStatus(QCamera::LockStatus status, QCamera::LockChangeReason reason)
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{
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#ifdef CAMERABIN_DEBUG
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qDebug() << Q_FUNC_INFO << "Current:"
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<< ENUM_NAME(QCamera, "LockStatus", m_focusStatus)
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<< "New:"
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<< ENUM_NAME(QCamera, "LockStatus", status) << ENUM_NAME(QCamera, "LockChangeReason", reason);
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#endif
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if (m_focusStatus != status) {
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m_focusStatus = status;
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QCameraFocusZone::FocusZoneStatus zonesStatus =
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m_focusStatus == QCamera::Locked ?
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QCameraFocusZone::Focused : QCameraFocusZone::Selected;
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if (m_focusZoneStatus != zonesStatus) {
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m_focusZoneStatus = zonesStatus;
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emit focusZonesChanged();
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}
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emit _q_focusStatusChanged(m_focusStatus, reason);
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}
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}
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void CameraBinFocus::_q_handleCameraStateChange(QCamera::State state)
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{
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if (state != QCamera::ActiveState)
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_q_setFocusStatus(QCamera::Unlocked, QCamera::LockLost);
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}
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void CameraBinFocus::_q_handleCapturedImage()
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{
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#ifdef Q_WS_MAEMO_5
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//N900 lost focus after image capture
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if (m_focusStatus != QCamera::Unlocked) {
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m_focusStatus = QCamera::Unlocked;
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emit _q_focusStatusChanged(QCamera::Unlocked, QCamera::LockLost);
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}
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#endif
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}
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void CameraBinFocus::_q_startFocusing()
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{
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_q_setFocusStatus(QCamera::Searching, QCamera::UserRequest);
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gst_photography_set_autofocus(m_session->photography(), TRUE);
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}
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void CameraBinFocus::_q_stopFocusing()
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{
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gst_photography_set_autofocus(m_session->photography(), FALSE);
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_q_setFocusStatus(QCamera::Unlocked, QCamera::UserRequest);
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}
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