GLWidgetRenderer::GLWidgetRenderer(QWidget *parent, const QGLWidget* shareWidget, Qt::WindowFlags f):
QGLWidget(parent, shareWidget, f),VideoRenderer(*new GLWidgetRendererPrivate())
{
DPTR_INIT_PRIVATE(GLWidgetRenderer);
DPTR_D(GLWidgetRenderer);
setPreferredPixelFormat(VideoFormat::Format_YUV420P);
setAcceptDrops(true);
setFocusPolicy(Qt::StrongFocus);
/* To rapidly update custom widgets that constantly paint over their entire areas with
* opaque content, e.g., video streaming widgets, it is better to set the widget's
* Qt::WA_OpaquePaintEvent, avoiding any unnecessary overhead associated with repainting the
* widget's background
*/
setAttribute(Qt::WA_OpaquePaintEvent);
setAttribute(Qt::WA_PaintOnScreen);
setAttribute(Qt::WA_NoSystemBackground);
//default: swap in qpainter dtor. we should swap before QPainter.endNativePainting()
setAutoBufferSwap(false);
setAutoFillBackground(false);
d.painter = new QPainter();
d.filter_context = FilterContext::create(FilterContext::QtPainter);
QPainterFilterContext *ctx = static_cast<QPainterFilterContext*>(d.filter_context);
ctx->paint_device = this;
ctx->painter = d.painter;
setOSDFilter(new OSDFilterQPainter());
}
QPainterRenderer::QPainterRenderer()
:VideoRenderer(*new QPainterRendererPrivate())
{
DPTR_D(QPainterRenderer);
d.filter_context = FilterContext::create(FilterContext::QtPainter);
setOSDFilter(new OSDFilterQPainter());
}
QPainterRenderer::QPainterRenderer(QPainterRendererPrivate &d)
:VideoRenderer(d)
{
d.filter_context = FilterContext::create(FilterContext::QtPainter);
setOSDFilter(new OSDFilterQPainter());
}
