From 2a34e88c1e1ced28e75c487cd13402e1c9cf9fa3 Mon Sep 17 00:00:00 2001 From: Michael Goddard Date: Wed, 29 Jun 2011 13:38:46 +1000 Subject: Initial copy of QtMultimediaKit. Comes from original repo, with SHA1: 2c82d5611655e5967f5c5095af50c0991c4378b2 --- .../gstreamer/camerabin/camerabinexposure.cpp | 232 +++++++++++++++++++++ 1 file changed, 232 insertions(+) create mode 100644 src/plugins/gstreamer/camerabin/camerabinexposure.cpp (limited to 'src/plugins/gstreamer/camerabin/camerabinexposure.cpp') diff --git a/src/plugins/gstreamer/camerabin/camerabinexposure.cpp b/src/plugins/gstreamer/camerabin/camerabinexposure.cpp new file mode 100644 index 000000000..3401d07fc --- /dev/null +++ b/src/plugins/gstreamer/camerabin/camerabinexposure.cpp @@ -0,0 +1,232 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the Qt Mobility Components. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the Technology Preview License Agreement accompanying +** this package. +** +** 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 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain additional +** rights. These rights are described in the Nokia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** If you have questions regarding the use of this file, please contact +** Nokia at qt-info@nokia.com. +** +** +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "camerabinexposure.h" +#include "camerabinsession.h" +#include + +#include + +CameraBinExposure::CameraBinExposure(CameraBinSession *session) + :QCameraExposureControl(session), + m_session(session) +{ +} + +CameraBinExposure::~CameraBinExposure() +{ +} + +QCameraExposure::ExposureMode CameraBinExposure::exposureMode() const +{ + GstSceneMode 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; + } +} + +void CameraBinExposure::setExposureMode(QCameraExposure::ExposureMode mode) +{ + GstSceneMode 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); +} + +bool CameraBinExposure::isExposureModeSupported(QCameraExposure::ExposureMode mode) const +{ + //Similar mode names can be found in gst as GstSceneMode + return mode == QCameraExposure::ExposureAuto || + mode == QCameraExposure::ExposurePortrait || + mode == QCameraExposure::ExposureSports || + mode == QCameraExposure::ExposureNight; + + //No direct mapping available for GST_PHOTOGRAPHY_SCENE_MODE_CLOSEUP and + //GST_PHOTOGRAPHY_SCENE_MODE_LANDSCAPE +} + +QCameraExposure::MeteringMode CameraBinExposure::meteringMode() const +{ + return QCameraExposure::MeteringMatrix; +} + +void CameraBinExposure::setMeteringMode(QCameraExposure::MeteringMode mode) +{ + Q_UNUSED(mode); +} + +bool CameraBinExposure::isMeteringModeSupported(QCameraExposure::MeteringMode mode) const +{ + return mode == QCameraExposure::MeteringMatrix; +} + +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; + } +} + +QVariant CameraBinExposure::exposureParameter(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); + } + default: + return QVariant(); + } +} + +QCameraExposureControl::ParameterFlags CameraBinExposure::exposureParameterFlags(ExposureParameter parameter) const +{ + QCameraExposureControl::ParameterFlags flags = 0; + + switch (parameter) { + case QCameraExposureControl::ExposureCompensation: + flags |= ContinuousRange; + break; + case QCameraExposureControl::Aperture: + flags |= ReadOnly; + break; + default: + break; + } + + return flags; +} + +QVariantList CameraBinExposure::supportedParameterRange(ExposureParameter parameter) const +{ + QVariantList res; + switch (parameter) { + case QCameraExposureControl::ExposureCompensation: + 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; +} + +bool CameraBinExposure::setExposureParameter(ExposureParameter parameter, const QVariant& value) +{ + QVariant oldValue = exposureParameter(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; + default: + return false; + } + + QVariant newValue = exposureParameter(parameter); + if (!qFuzzyCompare(oldValue.toReal(), newValue.toReal())) + emit exposureParameterChanged(parameter); + + return true; +} + +QString CameraBinExposure::extendedParameterName(ExposureParameter) +{ + return QString(); +} -- cgit v1.2.3