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[kwin/scene_qpainter] Use size of shell surface as back buffer size

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Most important connect to the surface size changed signal so that we can
create a new back buffer which matches the size of the surface.
This commit is contained in:
Martin Gräßlin 2013-07-05 10:37:21 +02:00
parent 82fd9020e4
commit 823deba1d6
1 changed files with 4 additions and 2 deletions
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6
scene_qpainter.cpp
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@ -98,10 +98,12 @@ WaylandQPainterBackend::WaylandQPainterBackend()
: QPainterBackend()
, m_lastFrameRendered(true)
, m_needsFullRepaint(true)
, m_backBuffer(QImage(QSize(displayWidth(), displayHeight()), QImage::Format_ARGB32_Premultiplied))
, m_backBuffer(QImage(QSize(), QImage::Format_ARGB32_Premultiplied))
, m_buffer(NULL)
{
connect(Wayland::WaylandBackend::self()->shmPool(), SIGNAL(poolResized()), SLOT(remapBuffer()));
connect(Wayland::WaylandBackend::self(), &Wayland::WaylandBackend::shellSurfaceSizeChanged,
this, &WaylandQPainterBackend::screenGeometryChanged);
}
WaylandQPainterBackend::~WaylandQPainterBackend()
@ -172,7 +174,7 @@ void WaylandQPainterBackend::prepareRenderingFrame()
}
}
m_buffer = NULL;
const QSize size(displayWidth(), displayHeight());
const QSize size(Wayland::WaylandBackend::self()->shellSurfaceSize());
m_buffer = Wayland::WaylandBackend::self()->shmPool()->getBuffer(size, size.width() * 4);
if (!m_buffer) {
qDebug() << "Did not get a new Buffer from Shm Pool";