Blackberry: Add camera support for BB10 platform
Reimplement all camera related controls as they are supported by the BB10 camera API. Change-Id: Ie7d2258be22c1c1821489bd7074b80cff4242afa Reviewed-by: Bernd Weimer <bweimer@rim.com> Reviewed-by: Thomas McGuire <thomas.mcguire@kdab.com>
This commit is contained in:
Tobias Koenig
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The Qt Project
The Qt Project
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commit
36655ccdfb
232
src/plugins/blackberry/camera/bbcameraexposurecontrol.cpp
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232
src/plugins/blackberry/camera/bbcameraexposurecontrol.cpp
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/****************************************************************************
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**
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** Copyright (C) 2013 Research In Motion
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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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** $QT_BEGIN_LICENSE:LGPL$
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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 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, 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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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3.0 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU General Public License version 3.0 requirements will be
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** met: http://www.gnu.org/copyleft/gpl.html.
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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 "bbcameraexposurecontrol.h"
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#include "bbcamerasession.h"
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#include <QDebug>
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QT_BEGIN_NAMESPACE
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BbCameraExposureControl::BbCameraExposureControl(BbCameraSession *session, QObject *parent)
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: QCameraExposureControl(parent)
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, m_session(session)
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, m_requestedExposureMode(QCameraExposure::ExposureAuto)
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{
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connect(m_session, SIGNAL(statusChanged(QCamera::Status)), this, SLOT(statusChanged(QCamera::Status)));
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}
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bool BbCameraExposureControl::isParameterSupported(ExposureParameter parameter) const
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{
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switch (parameter) {
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case QCameraExposureControl::ISO:
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return false;
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case QCameraExposureControl::Aperture:
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return false;
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case QCameraExposureControl::ShutterSpeed:
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return false;
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case QCameraExposureControl::ExposureCompensation:
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return false;
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case QCameraExposureControl::FlashPower:
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return false;
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case QCameraExposureControl::FlashCompensation:
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return false;
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case QCameraExposureControl::TorchPower:
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return false;
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case QCameraExposureControl::SpotMeteringPoint:
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return false;
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case QCameraExposureControl::ExposureMode:
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return true;
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case QCameraExposureControl::MeteringMode:
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return false;
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default:
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return false;
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}
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}
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QVariantList BbCameraExposureControl::supportedParameterRange(ExposureParameter parameter, bool *continuous) const
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{
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if (parameter != QCameraExposureControl::ExposureMode) // no other parameter supported by BB10 API at the moment
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return QVariantList();
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if (m_session->status() != QCamera::ActiveStatus) // we can query supported exposure modes only with active viewfinder
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return QVariantList();
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if (continuous)
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*continuous = false;
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int supported = 0;
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camera_scenemode_t modes[20];
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const camera_error_t result = camera_get_scene_modes(m_session->handle(), 20, &supported, modes);
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if (result != CAMERA_EOK) {
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qWarning() << "Unable to retrieve supported scene modes:" << result;
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return QVariantList();
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}
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QVariantList exposureModes;
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for (int i = 0; i < supported; ++i) {
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switch (modes[i]) {
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case CAMERA_SCENE_AUTO:
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exposureModes << QVariant::fromValue(QCameraExposure::ExposureAuto);
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break;
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case CAMERA_SCENE_SPORTS:
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exposureModes << QVariant::fromValue(QCameraExposure::ExposureSports);
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break;
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case CAMERA_SCENE_CLOSEUP:
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exposureModes << QVariant::fromValue(QCameraExposure::ExposurePortrait);
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break;
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case CAMERA_SCENE_ACTION:
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exposureModes << QVariant::fromValue(QCameraExposure::ExposureSports);
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break;
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case CAMERA_SCENE_BEACHANDSNOW:
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exposureModes << QVariant::fromValue(QCameraExposure::ExposureBeach) << QVariant::fromValue(QCameraExposure::ExposureSnow);
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break;
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case CAMERA_SCENE_NIGHT:
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exposureModes << QVariant::fromValue(QCameraExposure::ExposureNight);
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break;
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default: break;
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}
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}
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return exposureModes;
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}
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QVariant BbCameraExposureControl::requestedValue(ExposureParameter parameter) const
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{
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if (parameter != QCameraExposureControl::ExposureMode) // no other parameter supported by BB10 API at the moment
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return QVariant();
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return QVariant::fromValue(m_requestedExposureMode);
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}
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QVariant BbCameraExposureControl::actualValue(ExposureParameter parameter) const
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{
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if (parameter != QCameraExposureControl::ExposureMode) // no other parameter supported by BB10 API at the moment
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return QVariantList();
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if (m_session->status() != QCamera::ActiveStatus) // we can query actual scene modes only with active viewfinder
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return QVariantList();
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camera_scenemode_t sceneMode = CAMERA_SCENE_DEFAULT;
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const camera_error_t result = camera_get_scene_mode(m_session->handle(), &sceneMode);
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if (result != CAMERA_EOK) {
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qWarning() << "Unable to retrieve scene mode:" << result;
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return QVariant();
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}
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switch (sceneMode) {
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case CAMERA_SCENE_AUTO:
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return QVariant::fromValue(QCameraExposure::ExposureAuto);
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case CAMERA_SCENE_SPORTS:
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return QVariant::fromValue(QCameraExposure::ExposureSports);
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case CAMERA_SCENE_CLOSEUP:
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return QVariant::fromValue(QCameraExposure::ExposurePortrait);
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case CAMERA_SCENE_ACTION:
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return QVariant::fromValue(QCameraExposure::ExposureSports);
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case CAMERA_SCENE_BEACHANDSNOW:
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return (m_requestedExposureMode == QCameraExposure::ExposureBeach ? QVariant::fromValue(QCameraExposure::ExposureBeach)
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: QVariant::fromValue(QCameraExposure::ExposureSnow));
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case CAMERA_SCENE_NIGHT:
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return QVariant::fromValue(QCameraExposure::ExposureNight);
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default:
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return QVariant();
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}
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}
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bool BbCameraExposureControl::setValue(ExposureParameter parameter, const QVariant& value)
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{
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if (parameter != QCameraExposureControl::ExposureMode) // no other parameter supported by BB10 API at the moment
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return false;
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if (m_session->status() != QCamera::ActiveStatus) // we can set actual scene modes only with active viewfinder
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return false;
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camera_scenemode_t sceneMode = CAMERA_SCENE_DEFAULT;
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if (value.isValid()) {
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m_requestedExposureMode = value.value<QCameraExposure::ExposureMode>();
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emit requestedValueChanged(QCameraExposureControl::ExposureMode);
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switch (m_requestedExposureMode) {
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case QCameraExposure::ExposureAuto:
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sceneMode = CAMERA_SCENE_AUTO;
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break;
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case QCameraExposure::ExposureSports:
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sceneMode = CAMERA_SCENE_SPORTS;
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break;
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case QCameraExposure::ExposurePortrait:
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sceneMode = CAMERA_SCENE_CLOSEUP;
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break;
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case QCameraExposure::ExposureBeach:
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sceneMode = CAMERA_SCENE_BEACHANDSNOW;
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break;
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case QCameraExposure::ExposureSnow:
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sceneMode = CAMERA_SCENE_BEACHANDSNOW;
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break;
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case QCameraExposure::ExposureNight:
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sceneMode = CAMERA_SCENE_NIGHT;
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break;
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default:
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sceneMode = CAMERA_SCENE_DEFAULT;
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break;
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}
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}
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const camera_error_t result = camera_set_scene_mode(m_session->handle(), sceneMode);
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if (result != CAMERA_EOK) {
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qWarning() << "Unable to set scene mode:" << result;
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return false;
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}
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emit actualValueChanged(QCameraExposureControl::ExposureMode);
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return true;
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}
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void BbCameraExposureControl::statusChanged(QCamera::Status status)
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{
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if (status == QCamera::ActiveStatus || status == QCamera::LoadedStatus)
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emit parameterRangeChanged(QCameraExposureControl::ExposureMode);
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}
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QT_END_NAMESPACE
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