Files
qtmultimedia/src/plugins/simulator/camera/simulatorvideorenderercontrol.cpp
Jason McDonald 0dca769d5a Update year in Nokia copyright headers.
Update headers from before 2011 that were missed in the previous commit.

Change-Id: Ib0fd91a39ffc57117fe01280e34519c3f914fac0
Reviewed-by: Rohan McGovern <rohan.mcgovern@nokia.com>
2012-01-12 01:08:31 +01:00

131 lines
4.3 KiB
C++

/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** 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.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU General
** Public License version 3.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of this
** file. Please review the following information to ensure the GNU General
** Public License version 3.0 requirements will be met:
** http://www.gnu.org/copyleft/gpl.html.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
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**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "simulatorvideorenderercontrol.h"
#include "simulatorcamerasettings.h"
#include "simulatorcamerasession.h"
#include <qabstractvideosurface.h>
#include <qvideoframe.h>
#include <qvideosurfaceformat.h>
#include <QFile>
#include <QColor>
#include <QPainter>
SimulatorVideoRendererControl::SimulatorVideoRendererControl(SimulatorCameraSession *session, QObject *parent) :
QVideoRendererControl(parent)
, mSession(session)
, mSurface(0)
, mRunning(false)
{
}
SimulatorVideoRendererControl::~SimulatorVideoRendererControl()
{
}
QAbstractVideoSurface *SimulatorVideoRendererControl::surface() const
{
return mSurface;
}
void SimulatorVideoRendererControl::setSurface(QAbstractVideoSurface *surface)
{
mSurface = surface;
}
void SimulatorVideoRendererControl::setImagePath(const QString &imagePath)
{
if (QFile::exists(imagePath)) {
mImage = QImage(imagePath);
} else {
mImage = QImage(800, 600, QImage::Format_RGB32);
mImage.fill(qRgb(200, 50, 50));
QPainter painter(&mImage);
painter.drawText(0, 0, 800, 600, Qt::AlignCenter, imagePath);
}
if (mRunning)
showImage();
}
void SimulatorVideoRendererControl::showImage()
{
if (!mSurface)
return;
stop();
mShownImage = mImage;
SimulatorCameraSettings *settings = mSession->settings();
qreal colorDiff = .0;
colorDiff += settings->aperture() - settings->defaultAperture();
colorDiff += (settings->shutterSpeed() - settings->defaultShutterSpeed()) * 400;
colorDiff += ((qreal)settings->isoSensitivity() - settings->defaultIsoSensitivity()) / 100;
colorDiff += settings->exposureCompensation();
int diffToApply = qAbs(colorDiff * 20);
QPainter painter(&mShownImage);
if (colorDiff < 0)
painter.fillRect(mShownImage.rect(), QColor(0, 0, 0, qMin(diffToApply, 255)));
else
painter.fillRect(mShownImage.rect(), QColor(255, 255, 255, qMin(diffToApply, 255)));
QVideoFrame::PixelFormat pixelFormat = QVideoFrame::pixelFormatFromImageFormat(mShownImage.format());
if (pixelFormat == QVideoFrame::Format_Invalid) {
mShownImage = mShownImage.convertToFormat(QImage::Format_RGB32);
pixelFormat = QVideoFrame::Format_RGB32;
}
QVideoSurfaceFormat format(mShownImage.size(), pixelFormat);
mSurface->start(format);
mSurface->present(mShownImage);
mRunning = true;
}
void SimulatorVideoRendererControl::stop()
{
if (!mSurface)
return;
if (mSurface->isActive())
mSurface->stop();
mRunning = false;
}
const QImage * SimulatorVideoRendererControl::image() const
{
return &mShownImage;
}