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/* This file is part of the KDE project.
Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
This library is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 2.1 or 3 of the License.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#include <QtGui/QPainter>
#include <gst/gst.h>
#include "common.h"
#include "message.h"
#include "mediaobject.h"
#include "qwidgetvideosink.h"
#include "widgetrenderer.h"
#include "qrgb.h"
// support old OpenGL installations (1.2)
// assume that if TEXTURE0 isn't defined, none are
#ifndef GL_TEXTURE0
# define GL_TEXTURE0 0x84C0
# define GL_TEXTURE1 0x84C1
# define GL_TEXTURE2 0x84C2
#endif
QT_BEGIN_NAMESPACE
static void frameRendered()
{
static QString displayFps = qgetenv("PHONON_GST_FPS");
if (displayFps.isEmpty())
return;
static int frames = 0;
static QTime lastTime = QTime::currentTime();
QTime time = QTime::currentTime();
int delta = lastTime.msecsTo(time);
if (delta > 2000) {
printf("FPS: %f\n", 1000.0 * frames / qreal(delta));
lastTime = time;
frames = 0;
}
++frames;
}
namespace Phonon
{
namespace Gstreamer
{
WidgetRenderer::WidgetRenderer(VideoWidget *videoWidget)
: AbstractRenderer(videoWidget)
, m_width(0)
, m_height(0)
{
videoWidget->backend()->logMessage("Creating QWidget renderer");
if ((m_videoSink = GST_ELEMENT(g_object_new(get_type_RGB(), NULL)))) {
gst_object_ref (GST_OBJECT (m_videoSink)); //Take ownership
gst_object_sink (GST_OBJECT (m_videoSink));
QWidgetVideoSinkBase* sink = reinterpret_cast<QWidgetVideoSinkBase*>(m_videoSink);
// Let the videosink know which widget to direct frame updates to
sink->renderWidget = videoWidget;
}
// Clear the background with black by default
QPalette palette;
palette.setColor(QPalette::Background, Qt::black);
m_videoWidget->setPalette(palette);
m_videoWidget->setAutoFillBackground(true);
m_videoWidget->setAttribute(Qt::WA_NoSystemBackground, false);
m_videoWidget->setAttribute(Qt::WA_PaintOnScreen, false);
}
void WidgetRenderer::setNextFrame(const QByteArray &array, int w, int h)
{
if (m_videoWidget->root()->state() == Phonon::LoadingState)
return;
m_frame = QImage();
{
m_frame = QImage((uchar *)array.constData(), w, h, QImage::Format_RGB32);
}
m_array = array;
m_width = w;
m_height = h;
m_videoWidget->update();
}
void WidgetRenderer::handleMediaNodeEvent(const MediaNodeEvent *event)
{
switch (event->type()) {
case MediaNodeEvent::SourceChanged:
{
clearFrame();
break;
}
default:
break;
}
}
void WidgetRenderer::clearFrame()
{
m_frame = QImage();
m_array = QByteArray();
m_videoWidget->update();
}
const QImage &WidgetRenderer::currentFrame() const
{
return m_frame;
}
void WidgetRenderer::handlePaint(QPaintEvent *event)
{
Q_UNUSED(event);
QPainter painter(m_videoWidget);
m_drawFrameRect = m_videoWidget->calculateDrawFrameRect();
painter.drawImage(drawFrameRect(), currentFrame());
frameRendered();
}
bool WidgetRenderer::eventFilter(QEvent * event)
{
if (event->type() == QEvent::User) {
NewFrameEvent *frameEvent= static_cast <NewFrameEvent *>(event);
setNextFrame(frameEvent->frame, frameEvent->width, frameEvent->height);
return true;
}
return false;
}
}
} //namespace Phonon::Gstreamer
QT_END_NAMESPACE
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