2732e23887
- Renamed LICENSE.LGPL to LICENSE.LGPLv21 - Added LICENSE.LGPLv3 & LICENSE.GPLv2 - Removed LICENSE.GPL Change-Id: Ied06887225df341064c12bcc14c259ae74116f2e Reviewed-by: Jani Heikkinen <jani.heikkinen@digia.com>
347 lines
12 KiB
C++
347 lines
12 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
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** Contact: http://www.qt-project.org/legal
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**
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** This file is part of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL21$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and Digia. For licensing terms and
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** conditions see http://qt.digia.com/licensing. For further information
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** use the contact form at http://qt.digia.com/contact-us.
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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 or version 3 as published by the Free
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** Software Foundation and appearing in the file LICENSE.LGPLv21 and
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** LICENSE.LGPLv3 included in the packaging of this file. Please review the
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** following information to ensure the GNU Lesser General Public License
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** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
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** 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, Digia gives you certain additional
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** rights. These rights are described in the Digia 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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** $QT_END_LICENSE$
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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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QT_BEGIN_NAMESPACE
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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_cameraState(QCamera::UnloadedState),
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m_focusMode(QCameraFocus::AutoFocus),
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m_focusPointMode(QCameraFocus::FocusPointAuto),
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m_focusStatus(QCamera::Unlocked),
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m_focusZoneStatus(QCameraFocusZone::Selected),
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m_focusPoint(0.5, 0.5),
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m_focusRect(0, 0, 0.3, 0.3)
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{
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m_focusRect.moveCenter(m_focusPoint);
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gst_photography_set_focus_mode(m_session->photography(), GST_PHOTOGRAPHY_FOCUS_MODE_AUTO);
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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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}
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CameraBinFocus::~CameraBinFocus()
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{
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}
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QCameraFocus::FocusModes 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::FocusModes mode)
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{
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GstFocusMode photographyMode;
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switch (mode) {
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case QCameraFocus::AutoFocus:
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photographyMode = GST_PHOTOGRAPHY_FOCUS_MODE_AUTO;
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break;
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case QCameraFocus::HyperfocalFocus:
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photographyMode = GST_PHOTOGRAPHY_FOCUS_MODE_HYPERFOCAL;
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break;
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case QCameraFocus::InfinityFocus:
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photographyMode = GST_PHOTOGRAPHY_FOCUS_MODE_INFINITY;
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break;
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case QCameraFocus::ContinuousFocus:
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photographyMode = GST_PHOTOGRAPHY_FOCUS_MODE_CONTINUOUS_NORMAL;
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break;
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case QCameraFocus::MacroFocus:
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photographyMode = GST_PHOTOGRAPHY_FOCUS_MODE_MACRO;
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break;
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default:
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if (mode & QCameraFocus::AutoFocus) {
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photographyMode = GST_PHOTOGRAPHY_FOCUS_MODE_AUTO;
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break;
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} else {
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return;
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}
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}
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if (gst_photography_set_focus_mode(m_session->photography(), photographyMode))
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m_focusMode = mode;
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}
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bool CameraBinFocus::isFocusModeSupported(QCameraFocus::FocusModes mode) const
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{
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switch (mode) {
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case QCameraFocus::AutoFocus:
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case QCameraFocus::HyperfocalFocus:
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case QCameraFocus::InfinityFocus:
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case QCameraFocus::ContinuousFocus:
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case QCameraFocus::MacroFocus:
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return true;
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default:
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return mode & QCameraFocus::AutoFocus;
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}
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}
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QCameraFocus::FocusPointMode CameraBinFocus::focusPointMode() const
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{
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return m_focusPointMode;
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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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if (m_focusPointMode != mode
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&& (mode == QCameraFocus::FocusPointAuto || mode == QCameraFocus::FocusPointCustom)) {
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m_focusPointMode = mode;
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if (m_focusPointMode == QCameraFocus::FocusPointAuto)
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resetFocusPoint();
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emit focusPointModeChanged(m_focusPointMode);
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}
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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 || mode == QCameraFocus::FocusPointCustom;
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}
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QPointF CameraBinFocus::customFocusPoint() const
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{
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return m_focusPoint;
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}
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void CameraBinFocus::setCustomFocusPoint(const QPointF &point)
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{
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if (m_focusPoint != point) {
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m_focusPoint = point;
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// Bound the focus point so the focus rect remains entirely within the unit square.
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m_focusPoint.setX(qBound(m_focusRect.width() / 2, m_focusPoint.x(), 1 - m_focusRect.width() / 2));
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m_focusPoint.setY(qBound(m_focusRect.height() / 2, m_focusPoint.y(), 1 - m_focusRect.height() / 2));
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if (m_focusPointMode == QCameraFocus::FocusPointCustom) {
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const QRectF focusRect = m_focusRect;
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m_focusRect.moveCenter(m_focusPoint);
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updateRegionOfInterest(m_focusRect, 1);
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if (focusRect != m_focusRect) {
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emit focusZonesChanged();
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}
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}
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emit customFocusPointChanged(m_focusPoint);
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}
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}
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QCameraFocusZoneList CameraBinFocus::focusZones() const
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{
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return QCameraFocusZoneList() << QCameraFocusZone(m_focusRect, 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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<< m_focusStatus
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<< "New:"
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<< status << 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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m_cameraState = state;
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if (state == QCamera::ActiveState) {
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if (GstPad *pad = gst_element_get_static_pad(m_session->cameraSource(), "vfsrc")) {
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if (GstCaps *caps = gst_pad_get_negotiated_caps(pad)) {
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if (GstStructure *structure = gst_caps_get_structure(caps, 0)) {
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int width = 0;
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int height = 0;
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gst_structure_get_int(structure, "width", &width);
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gst_structure_get_int(structure, "height", &height);
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setViewfinderResolution(QSize(width, height));
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}
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gst_caps_unref(caps);
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}
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gst_object_unref(GST_OBJECT(pad));
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}
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if (m_focusPointMode == QCameraFocus::FocusPointCustom) {
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updateRegionOfInterest(m_focusRect, 1);
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}
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} else {
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_q_setFocusStatus(QCamera::Unlocked, QCamera::LockLost);
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resetFocusPoint();
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}
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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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void CameraBinFocus::setViewfinderResolution(const QSize &resolution)
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{
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if (resolution != m_viewfinderResolution) {
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m_viewfinderResolution = resolution;
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if (!resolution.isEmpty()) {
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const QPointF center = m_focusRect.center();
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m_focusRect.setWidth(m_focusRect.height() * resolution.height() / resolution.width());
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m_focusRect.moveCenter(center);
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}
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}
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}
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void CameraBinFocus::resetFocusPoint()
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{
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const QRectF focusRect = m_focusRect;
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m_focusPoint = QPointF(0.5, 0.5);
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m_focusRect.moveCenter(m_focusPoint);
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updateRegionOfInterest(QRectF(0, 0, 0, 0), 0);
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if (focusRect != m_focusRect) {
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emit customFocusPointChanged(m_focusPoint);
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emit focusZonesChanged();
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}
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}
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void CameraBinFocus::updateRegionOfInterest(const QRectF &focusRect, int priority)
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{
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if (m_cameraState != QCamera::ActiveState)
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return;
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GstElement * const cameraSource = m_session->cameraSource();
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if (!cameraSource)
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return;
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GstStructure *region = gst_structure_new(
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"region",
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"region-x" , G_TYPE_UINT , uint(m_viewfinderResolution.width() * focusRect.x()),
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"region-y" , G_TYPE_UINT, uint(m_viewfinderResolution.height() * focusRect.y()),
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"region-w" , G_TYPE_UINT , uint(m_viewfinderResolution.width() * focusRect.width()),
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"region-h" , G_TYPE_UINT, uint(m_viewfinderResolution.height() * focusRect.height()),
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"region-priority" , G_TYPE_UINT, priority,
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NULL);
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GValue regionValue = G_VALUE_INIT;
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g_value_init(®ionValue, GST_TYPE_STRUCTURE);
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gst_value_set_structure(®ionValue, region);
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gst_structure_free(region);
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GValue regions = G_VALUE_INIT;
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g_value_init(®ions, GST_TYPE_LIST);
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gst_value_list_append_value(®ions, ®ionValue);
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g_value_unset(®ionValue);
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GstStructure *regionsOfInterest = gst_structure_new(
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"regions-of-interest",
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"frame-width" , G_TYPE_UINT , m_viewfinderResolution.width(),
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"frame-height" , G_TYPE_UINT, m_viewfinderResolution.height(),
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NULL);
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gst_structure_set_value(regionsOfInterest, "regions", ®ions);
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g_value_unset(®ions);
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GstEvent *event = gst_event_new_custom(GST_EVENT_CUSTOM_UPSTREAM, regionsOfInterest);
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gst_element_send_event(cameraSource, event);
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}
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QT_END_NAMESPACE
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