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/****************************************************************************
**
** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL21$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "camerabinexposure.h"
#include "camerabinsession.h"
#include <gst/interfaces/photography.h>
#include <QDebug>
#if !GST_CHECK_VERSION(1,0,0)
typedef GstSceneMode GstPhotographySceneMode;
#endif
QT_BEGIN_NAMESPACE
CameraBinExposure::CameraBinExposure(CameraBinSession *session)
:QCameraExposureControl(session),
m_session(session)
{
}
CameraBinExposure::~CameraBinExposure()
{
}
bool CameraBinExposure::isParameterSupported(ExposureParameter parameter) const
{
switch (parameter) {
case QCameraExposureControl::ExposureCompensation:
case QCameraExposureControl::ISO:
case QCameraExposureControl::Aperture:
case QCameraExposureControl::ShutterSpeed:
return true;
default:
return false;
}
}
QVariantList CameraBinExposure::supportedParameterRange(ExposureParameter parameter,
bool *continuous) const
{
if (continuous)
*continuous = false;
QVariantList res;
switch (parameter) {
case QCameraExposureControl::ExposureCompensation:
if (continuous)
*continuous = true;
res << -2.0 << 2.0;
break;
case QCameraExposureControl::ISO:
res << 100 << 200 << 400;
break;
case QCameraExposureControl::Aperture:
res << 2.8;
break;
default:
break;
}
return res;
}
QVariant CameraBinExposure::requestedValue(ExposureParameter parameter) const
{
return m_requestedValues.value(parameter);
}
QVariant CameraBinExposure::actualValue(ExposureParameter parameter) const
{
switch (parameter) {
case QCameraExposureControl::ExposureCompensation:
{
gfloat ev;
gst_photography_get_ev_compensation(m_session->photography(), &ev);
return QVariant(ev);
}
case QCameraExposureControl::ISO:
{
guint isoSpeed = 0;
gst_photography_get_iso_speed(m_session->photography(), &isoSpeed);
return QVariant(isoSpeed);
}
case QCameraExposureControl::Aperture:
return QVariant(2.8);
case QCameraExposureControl::ShutterSpeed:
{
guint32 shutterSpeed = 0;
gst_photography_get_exposure(m_session->photography(), &shutterSpeed);
return QVariant(shutterSpeed/1000000.0);
}
case QCameraExposureControl::ExposureMode:
{
GstPhotographySceneMode sceneMode;
gst_photography_get_scene_mode(m_session->photography(), &sceneMode);
switch (sceneMode) {
case GST_PHOTOGRAPHY_SCENE_MODE_PORTRAIT:
return QCameraExposure::ExposurePortrait;
case GST_PHOTOGRAPHY_SCENE_MODE_SPORT:
return QCameraExposure::ExposureSports;
case GST_PHOTOGRAPHY_SCENE_MODE_NIGHT:
return QCameraExposure::ExposureNight;
case GST_PHOTOGRAPHY_SCENE_MODE_MANUAL:
return QCameraExposure::ExposureManual;
case GST_PHOTOGRAPHY_SCENE_MODE_CLOSEUP:
//no direct mapping available so mapping to auto mode
case GST_PHOTOGRAPHY_SCENE_MODE_LANDSCAPE:
//no direct mapping available so mapping to auto mode
case GST_PHOTOGRAPHY_SCENE_MODE_AUTO:
default:
return QCameraExposure::ExposureAuto;
}
}
case QCameraExposureControl::MeteringMode:
return QCameraExposure::MeteringMatrix;
default:
return QVariant();
}
}
bool CameraBinExposure::setValue(ExposureParameter parameter, const QVariant& value)
{
QVariant oldValue = actualValue(parameter);
switch (parameter) {
case QCameraExposureControl::ExposureCompensation:
gst_photography_set_ev_compensation(m_session->photography(), value.toReal());
break;
case QCameraExposureControl::ISO:
gst_photography_set_iso_speed(m_session->photography(), value.toInt());
break;
case QCameraExposureControl::Aperture:
gst_photography_set_aperture(m_session->photography(), guint(value.toReal()*1000000));
break;
case QCameraExposureControl::ShutterSpeed:
gst_photography_set_exposure(m_session->photography(), guint(value.toReal()*1000000));
break;
case QCameraExposureControl::ExposureMode:
{
QCameraExposure::ExposureMode mode = QCameraExposure::ExposureMode(value.toInt());
GstPhotographySceneMode sceneMode;
gst_photography_get_scene_mode(m_session->photography(), &sceneMode);
switch (mode) {
case QCameraExposure::ExposureManual:
sceneMode = GST_PHOTOGRAPHY_SCENE_MODE_MANUAL;
break;
case QCameraExposure::ExposurePortrait:
sceneMode = GST_PHOTOGRAPHY_SCENE_MODE_PORTRAIT;
break;
case QCameraExposure::ExposureSports:
sceneMode = GST_PHOTOGRAPHY_SCENE_MODE_SPORT;
break;
case QCameraExposure::ExposureNight:
sceneMode = GST_PHOTOGRAPHY_SCENE_MODE_NIGHT;
break;
case QCameraExposure::ExposureAuto:
sceneMode = GST_PHOTOGRAPHY_SCENE_MODE_AUTO;
break;
default:
break;
}
gst_photography_set_scene_mode(m_session->photography(), sceneMode);
break;
}
default:
return false;
}
if (!qFuzzyCompare(m_requestedValues.value(parameter).toReal(), value.toReal())) {
m_requestedValues[parameter] = value;
emit requestedValueChanged(parameter);
}
QVariant newValue = actualValue(parameter);
if (!qFuzzyCompare(oldValue.toReal(), newValue.toReal()))
emit actualValueChanged(parameter);
return true;
}
QT_END_NAMESPACE
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