void WidgetRenderer::paintEvent(QPaintEvent *)
{
DPTR_D(WidgetRenderer);
QMutexLocker locker(&d.img_mutex);
Q_UNUSED(locker);
QPainter p(this);
//fill background color only when the displayed frame rect not equas to renderer's
if (d.out_rect != rect()) {
p.fillRect(rect(), QColor(0, 0, 0));
}
if (d.image.isNull()) {
//TODO: when setInSize()?
d.image = QImage(rendererSize(), QImage::Format_RGB32);
d.image.fill(Qt::black); //maemo 4.7.0: QImage.fill(uint)
}
//assume that the image data is already scaled to out_size(NOT renderer size!)
if (!d.scale_in_renderer || d.image.size() == d.out_rect.size()) {
//d.preview = d.image;
p.drawImage(d.out_rect.topLeft(), d.image);
} else {
//qDebug("size not fit. may slow. %dx%d ==> %dx%d"
// , d.image.size().width(), image.size().height(), d.renderer_width, d.renderer_height);
p.drawImage(d.out_rect, d.image);
//what's the difference?
//p.drawImage(QPoint(), image.scaled(d.renderer_width, d.renderer_height));
}
}
void GraphicsItemRenderer::drawFrame()
{
DPTR_D(GraphicsItemRenderer);
if (!d.painter)
return;
//fill background color only when the displayed frame rect not equas to renderer's
if (d.image.isNull()) {
//TODO: when setInSize()?
d.image = QImage(rendererSize(), QImage::Format_RGB32);
d.image.fill(Qt::black); //maemo 4.7.0: QImage.fill(uint)
}
//assume that the image data is already scaled to out_size(NOT renderer size!)
if (!d.scale_in_renderer || d.image.size() == d.out_rect.size()) {
d.painter->drawImage(d.out_rect.topLeft(), d.image);
} else {
d.painter->drawImage(d.out_rect, d.image);
}
}
void QPainterRenderer::drawBackground()
{
DPTR_D(QPainterRenderer);
if (!d.painter)
return;
const QRegion bgRegion(backgroundRegion());
if (bgRegion.isEmpty())
return;
#if 0
d.painter->save();
d.painter->setClipRegion(bgRegion);
d.painter->fillRect(QRect(QPoint(), rendererSize()), backgroundColor());
d.painter->restore();
#else
const QVector<QRect> bg(bgRegion.rects());
foreach (const QRect& r, bg) {
d.painter->fillRect(r, backgroundColor());
}
void QQuickItemRenderer::drawFrame()
{
DPTR_D(QQuickItemRenderer);
if (!d.node)
return;
if (isOpenGL()) {
SGVideoNode *sgvn = static_cast<SGVideoNode*>(d.node);
Q_ASSERT(sgvn);
if (d.frame_changed)
sgvn->setCurrentFrame(d.video_frame);
d.frame_changed = false;
d.video_frame = VideoFrame();
sgvn->setTexturedRectGeometry(d.out_rect, normalizedROI(), d.orientation);
return;
}
if (!d.frame_changed) {
static_cast<QSGSimpleTextureNode*>(d.node)->setRect(d.out_rect);
d.node->markDirty(QSGNode::DirtyGeometry);
return;
}
if (d.image.isNull()) {
d.image = QImage(rendererSize(), QImage::Format_RGB32);
d.image.fill(Qt::black);
}
static_cast<QSGSimpleTextureNode*>(d.node)->setRect(d.out_rect);
if (d.texture)
delete d.texture;
if (d.orientation == 0) {
d.texture = window()->createTextureFromImage(d.image);
} else if (d.orientation == 180) {
d.texture = window()->createTextureFromImage(d.image.mirrored(true, true));
}
static_cast<QSGSimpleTextureNode*>(d.node)->setTexture(d.texture);
d.node->markDirty(QSGNode::DirtyGeometry);
d.frame_changed = false;
d.video_frame = VideoFrame();
}
void GraphicsItemRenderer::drawFrame()
{
DPTR_D(GraphicsItemRenderer);
if (!d.painter)
return;
if (d.checkGL()) {
d.glv.render(boundingRect(), realROI(), d.matrix*sceneTransform());
return;
}
//fill background color only when the displayed frame rect not equas to renderer's
if (d.image.isNull()) {
//TODO: when setInSize()?
d.image = QImage(rendererSize(), QImage::Format_RGB32);
d.image.fill(Qt::black); //maemo 4.7.0: QImage.fill(uint)
}
const QRect roi = realROI();
//assume that the image data is already scaled to out_size(NOT renderer size!)
if (roi.size() == d.out_rect.size()) {
d.painter->drawImage(d.out_rect.topLeft(), d.image, roi);
} else {
d.painter->drawImage(d.out_rect, d.image, roi);
}
}