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scenes/qpainter: Drop support for Xinerama-style rendering

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All platforms that provide support for the QPainter render backend use
per screen rendering. Since there is no any way to test Xinerama-style
rendering, it's better to drop the dead code.
This commit is contained in:
Vlad Zahorodnii 2020-11-10 10:39:08 +02:00
parent f64bea0f68
commit e4861c28a7
1 changed files with 27 additions and 45 deletions
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72
plugins/scenes/qpainter/scene_qpainter.cpp
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@ -83,6 +83,7 @@ void SceneQPainter::paintGenericScreen(int mask, const ScreenPaintData &data)
qint64 SceneQPainter::paint(const QRegion &_damage, const QList<Toplevel *> &toplevels)
{
Q_ASSERT(m_backend->perScreenRendering());
QElapsedTimer renderTimer;
renderTimer.start();
@ -91,52 +92,33 @@ qint64 SceneQPainter::paint(const QRegion &_damage, const QList<Toplevel *> &top
int mask = 0;
m_backend->prepareRenderingFrame();
if (m_backend->perScreenRendering()) {
const bool needsFullRepaint = m_backend->needsFullRepaint();
if (needsFullRepaint) {
mask |= Scene::PAINT_SCREEN_BACKGROUND_FIRST;
damage = screens()->geometry();
}
QRegion overallUpdate;
for (int i = 0; i < screens()->count(); ++i) {
painted_screen = i;
const QRect geometry = screens()->geometry(i);
QImage *buffer = m_backend->bufferForScreen(i);
if (!buffer || buffer->isNull()) {
continue;
}
m_painter->begin(buffer);
m_painter->save();
m_painter->setWindow(geometry);
QRegion updateRegion, validRegion;
paintScreen(&mask, damage.intersected(geometry), QRegion(), &updateRegion, &validRegion);
overallUpdate = overallUpdate.united(updateRegion);
paintCursor(updateRegion);
m_painter->restore();
m_painter->end();
}
m_backend->showOverlay();
m_backend->present(mask, overallUpdate);
} else {
painted_screen = -1;
m_painter->begin(m_backend->buffer());
m_painter->setClipping(true);
m_painter->setClipRegion(damage);
if (m_backend->needsFullRepaint()) {
mask |= Scene::PAINT_SCREEN_BACKGROUND_FIRST;
damage = screens()->geometry();
}
QRegion updateRegion, validRegion;
paintScreen(&mask, damage, QRegion(), &updateRegion, &validRegion);
paintCursor(updateRegion);
m_backend->showOverlay();
m_painter->end();
m_backend->present(mask, updateRegion);
const bool needsFullRepaint = m_backend->needsFullRepaint();
if (needsFullRepaint) {
mask |= Scene::PAINT_SCREEN_BACKGROUND_FIRST;
damage = screens()->geometry();
}
QRegion overallUpdate;
for (int i = 0; i < screens()->count(); ++i) {
painted_screen = i;
const QRect geometry = screens()->geometry(i);
QImage *buffer = m_backend->bufferForScreen(i);
if (!buffer || buffer->isNull()) {
continue;
}
m_painter->begin(buffer);
m_painter->save();
m_painter->setWindow(geometry);
QRegion updateRegion, validRegion;
paintScreen(&mask, damage.intersected(geometry), QRegion(), &updateRegion, &validRegion);
overallUpdate = overallUpdate.united(updateRegion);
paintCursor(updateRegion);
m_painter->restore();
m_painter->end();
}
m_backend->showOverlay();
m_backend->present(mask, overallUpdate);
// do cleanup
clearStackingOrder();