[SceneQPainter] Render per DrmOutput in DrmQPainterBackend
For each DrmOutput a set of buffers is created and presented. The renderig is still in one go and not synced to the individual screens. Dynamic changes are not yet supported.icc-effect-5.14.5
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9133c0f9d5
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5c79f777a4
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@ -356,24 +356,38 @@ DrmQPainterBackend::DrmQPainterBackend(DrmBackend *backend)
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, QPainterBackend()
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, m_backend(backend)
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{
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m_buffer[0] = m_backend->createBuffer(m_backend->size());
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m_buffer[0]->map();
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m_buffer[1] = m_backend->createBuffer(m_backend->size());
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m_buffer[1]->map();
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m_buffer[0]->image()->fill(Qt::black);
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m_buffer[1]->image()->fill(Qt::black);
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const auto outputs = m_backend->outputs();
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for (auto output: outputs) {
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Output o;
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auto initBuffer = [&o, output, this] (int index) {
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o.buffer[index] = m_backend->createBuffer(output->size());
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o.buffer[index]->map();
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o.buffer[index]->image()->fill(Qt::black);
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};
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initBuffer(0);
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initBuffer(1);
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o.output = output;
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m_outputs << o;
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}
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}
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DrmQPainterBackend::~DrmQPainterBackend()
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{
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delete m_buffer[0];
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delete m_buffer[1];
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for (auto it = m_outputs.begin(); it != m_outputs.end(); ++it) {
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delete (*it).buffer[0];
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delete (*it).buffer[1];
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}
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}
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QImage *DrmQPainterBackend::buffer()
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{
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return m_buffer[m_bufferIndex]->image();
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return bufferForScreen(0);
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}
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QImage *DrmQPainterBackend::bufferForScreen(int screenId)
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{
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const Output &o = m_outputs.at(screenId);
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return o.buffer[o.index]->image();
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}
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bool DrmQPainterBackend::needsFullRepaint() const
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@ -383,7 +397,9 @@ bool DrmQPainterBackend::needsFullRepaint() const
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void DrmQPainterBackend::prepareRenderingFrame()
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{
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m_bufferIndex = (m_bufferIndex + 1) % 2;
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for (auto it = m_outputs.begin(); it != m_outputs.end(); ++it) {
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(*it).index = ((*it).index + 1) % 2;
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}
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}
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void DrmQPainterBackend::present(int mask, const QRegion &damage)
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@ -393,13 +409,22 @@ void DrmQPainterBackend::present(int mask, const QRegion &damage)
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if (!VirtualTerminal::self()->isActive()) {
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return;
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}
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m_backend->present(m_buffer[m_bufferIndex]);
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for (auto it = m_outputs.begin(); it != m_outputs.end(); ++it) {
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const Output &o = *it;
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m_backend->present(o.buffer[o.index], o.output);
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}
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}
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bool DrmQPainterBackend::usesOverlayWindow() const
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{
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return false;
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}
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bool DrmQPainterBackend::perScreenRendering() const
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{
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return true;
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}
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#endif
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#endif
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@ -46,6 +46,7 @@ class WaylandBackend;
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}
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class DrmBackend;
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class DrmBuffer;
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class DrmOutput;
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class FramebufferBackend;
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class X11WindowedBackend;
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@ -198,15 +199,21 @@ public:
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virtual ~DrmQPainterBackend();
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QImage *buffer() override;
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QImage *bufferForScreen(int screenId);
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bool needsFullRepaint() const override;
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bool usesOverlayWindow() const override;
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void prepareRenderingFrame() override;
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void present(int mask, const QRegion &damage) override;
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bool perScreenRendering() const override;
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private:
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struct Output {
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DrmBuffer *buffer[2];
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DrmOutput *output;
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int index = 0;
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};
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QVector<Output> m_outputs;
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DrmBackend *m_backend;
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DrmBuffer *m_buffer[2];
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int m_bufferIndex = 0;
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};
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#endif
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