diff --git a/plugins/scenes/qpainter/scene_qpainter.cpp b/plugins/scenes/qpainter/scene_qpainter.cpp index 8588ed96d..98c39f45b 100644 --- a/plugins/scenes/qpainter/scene_qpainter.cpp +++ b/plugins/scenes/qpainter/scene_qpainter.cpp @@ -1,901 +1,900 @@ /******************************************************************** KWin - the KDE window manager This file is part of the KDE project. Copyright (C) 2013 Martin Gräßlin This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see . *********************************************************************/ #include "scene_qpainter.h" // KWin #include "x11client.h" #include "composite.h" #include "cursor.h" #include "deleted.h" #include "effects.h" #include "main.h" #include "screens.h" #include "toplevel.h" #include "platform.h" #include "wayland_server.h" #include #include #include #include #include "decorations/decoratedclient.h" // Qt #include #include #include #include namespace KWin { //**************************************** // SceneQPainter //**************************************** SceneQPainter *SceneQPainter::createScene(QObject *parent) { QScopedPointer backend(kwinApp()->platform()->createQPainterBackend()); if (backend.isNull()) { return nullptr; } if (backend->isFailed()) { return nullptr; } return new SceneQPainter(backend.take(), parent); } SceneQPainter::SceneQPainter(QPainterBackend *backend, QObject *parent) : Scene(parent) , m_backend(backend) , m_painter(new QPainter()) { } SceneQPainter::~SceneQPainter() { } CompositingType SceneQPainter::compositingType() const { return QPainterCompositing; } bool SceneQPainter::initFailed() const { return false; } void SceneQPainter::paintGenericScreen(int mask, ScreenPaintData data) { m_painter->save(); m_painter->translate(data.xTranslation(), data.yTranslation()); m_painter->scale(data.xScale(), data.yScale()); Scene::paintGenericScreen(mask, data); m_painter->restore(); } qint64 SceneQPainter::paint(QRegion damage, ToplevelList toplevels) { QElapsedTimer renderTimer; renderTimer.start(); createStackingOrder(toplevels); 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) { 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(); m_painter->restore(); m_painter->end(); } m_backend->showOverlay(); m_backend->present(mask, overallUpdate); } else { 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(); m_backend->showOverlay(); m_painter->end(); m_backend->present(mask, updateRegion); } // do cleanup clearStackingOrder(); emit frameRendered(); return renderTimer.nsecsElapsed(); } void SceneQPainter::paintBackground(QRegion region) { m_painter->setBrush(Qt::black); for (const QRect &rect : region) { m_painter->drawRect(rect); } } void SceneQPainter::paintCursor() { if (!kwinApp()->platform()->usesSoftwareCursor()) { return; } const QImage img = kwinApp()->platform()->softwareCursor(); if (img.isNull()) { return; } const QPoint cursorPos = Cursor::pos(); const QPoint hotspot = kwinApp()->platform()->softwareCursorHotspot(); m_painter->drawImage(cursorPos - hotspot, img); kwinApp()->platform()->markCursorAsRendered(); } void SceneQPainter::paintEffectQuickView(EffectQuickView *w) { QPainter *painter = effects->scenePainter(); const QImage buffer = w->bufferAsImage(); if (buffer.isNull()) { return; } painter->drawImage(w->geometry(), buffer); } Scene::Window *SceneQPainter::createWindow(Toplevel *toplevel) { return new SceneQPainter::Window(this, toplevel); } Scene::EffectFrame *SceneQPainter::createEffectFrame(EffectFrameImpl *frame) { return new QPainterEffectFrame(frame, this); } Shadow *SceneQPainter::createShadow(Toplevel *toplevel) { return new SceneQPainterShadow(toplevel); } void SceneQPainter::screenGeometryChanged(const QSize &size) { Scene::screenGeometryChanged(size); m_backend->screenGeometryChanged(size); } QImage *SceneQPainter::qpainterRenderBuffer() const { return m_backend->buffer(); } //**************************************** // SceneQPainter::Window //**************************************** SceneQPainter::Window::Window(SceneQPainter *scene, Toplevel *c) : Scene::Window(c) , m_scene(scene) { } SceneQPainter::Window::~Window() { - discardShape(); } static void paintSubSurface(QPainter *painter, const QPoint &pos, QPainterWindowPixmap *pixmap) { QPoint p = pos; if (!pixmap->subSurface().isNull()) { p += pixmap->subSurface()->position(); } painter->drawImage(QRect(pos, pixmap->size()), pixmap->image()); const auto &children = pixmap->children(); for (auto it = children.begin(); it != children.end(); ++it) { auto pixmap = static_cast(*it); if (pixmap->subSurface().isNull() || pixmap->subSurface()->surface().isNull() || !pixmap->subSurface()->surface()->isMapped()) { continue; } paintSubSurface(painter, p, pixmap); } } void SceneQPainter::Window::performPaint(int mask, QRegion region, WindowPaintData data) { if (!(mask & (PAINT_WINDOW_TRANSFORMED | PAINT_SCREEN_TRANSFORMED))) region &= toplevel->visibleRect(); if (region.isEmpty()) return; QPainterWindowPixmap *pixmap = windowPixmap(); if (!pixmap || !pixmap->isValid()) { return; } if (!toplevel->damage().isEmpty()) { pixmap->updateBuffer(); toplevel->resetDamage(); } QPainter *scenePainter = m_scene->scenePainter(); QPainter *painter = scenePainter; painter->save(); painter->setClipRegion(region); painter->setClipping(true); painter->translate(x(), y()); if (mask & PAINT_WINDOW_TRANSFORMED) { painter->translate(data.xTranslation(), data.yTranslation()); painter->scale(data.xScale(), data.yScale()); } const bool opaque = qFuzzyCompare(1.0, data.opacity()); QImage tempImage; QPainter tempPainter; if (!opaque) { // need a temp render target which we later on blit to the screen tempImage = QImage(toplevel->visibleRect().size(), QImage::Format_ARGB32_Premultiplied); tempImage.fill(Qt::transparent); tempPainter.begin(&tempImage); tempPainter.save(); tempPainter.translate(toplevel->geometry().topLeft() - toplevel->visibleRect().topLeft()); painter = &tempPainter; } renderShadow(painter); renderWindowDecorations(painter); // render content const QRect target = QRect(toplevel->clientPos(), toplevel->clientSize()); QSize srcSize = pixmap->image().size(); if (pixmap->surface() && pixmap->surface()->scale() == 1 && srcSize != toplevel->clientSize()) { // special case for XWayland windows srcSize = toplevel->clientSize(); } const QRect src = QRect(toplevel->clientPos() + toplevel->clientContentPos(), srcSize); painter->drawImage(target, pixmap->image(), src); // render subsurfaces const auto &children = pixmap->children(); for (auto pixmap : children) { if (pixmap->subSurface().isNull() || pixmap->subSurface()->surface().isNull() || !pixmap->subSurface()->surface()->isMapped()) { continue; } paintSubSurface(painter, toplevel->clientPos(), static_cast(pixmap)); } if (!opaque) { tempPainter.restore(); tempPainter.setCompositionMode(QPainter::CompositionMode_DestinationIn); QColor translucent(Qt::transparent); translucent.setAlphaF(data.opacity()); tempPainter.fillRect(QRect(QPoint(0, 0), toplevel->visibleRect().size()), translucent); tempPainter.end(); painter = scenePainter; painter->drawImage(toplevel->visibleRect().topLeft() - toplevel->geometry().topLeft(), tempImage); } painter->restore(); } void SceneQPainter::Window::renderShadow(QPainter* painter) { if (!toplevel->shadow()) { return; } SceneQPainterShadow *shadow = static_cast(toplevel->shadow()); const QImage &shadowTexture = shadow->shadowTexture(); const WindowQuadList &shadowQuads = shadow->shadowQuads(); for (const auto &q : shadowQuads) { auto topLeft = q[0]; auto bottomRight = q[2]; QRectF target(topLeft.x(), topLeft.y(), bottomRight.x() - topLeft.x(), bottomRight.y() - topLeft.y()); QRectF source(topLeft.textureX(), topLeft.textureY(), bottomRight.textureX() - topLeft.textureX(), bottomRight.textureY() - topLeft.textureY()); painter->drawImage(target, shadowTexture, source); } } void SceneQPainter::Window::renderWindowDecorations(QPainter *painter) { // TODO: custom decoration opacity AbstractClient *client = dynamic_cast(toplevel); Deleted *deleted = dynamic_cast(toplevel); if (!client && !deleted) { return; } bool noBorder = true; const SceneQPainterDecorationRenderer *renderer = nullptr; QRect dtr, dlr, drr, dbr; if (client && !client->noBorder()) { if (client->isDecorated()) { if (SceneQPainterDecorationRenderer *r = static_cast(client->decoratedClient()->renderer())) { r->render(); renderer = r; } } client->layoutDecorationRects(dlr, dtr, drr, dbr); noBorder = false; } else if (deleted && !deleted->noBorder()) { noBorder = false; deleted->layoutDecorationRects(dlr, dtr, drr, dbr); renderer = static_cast(deleted->decorationRenderer()); } if (noBorder || !renderer) { return; } painter->drawImage(dtr, renderer->image(SceneQPainterDecorationRenderer::DecorationPart::Top)); painter->drawImage(dlr, renderer->image(SceneQPainterDecorationRenderer::DecorationPart::Left)); painter->drawImage(drr, renderer->image(SceneQPainterDecorationRenderer::DecorationPart::Right)); painter->drawImage(dbr, renderer->image(SceneQPainterDecorationRenderer::DecorationPart::Bottom)); } WindowPixmap *SceneQPainter::Window::createWindowPixmap() { return new QPainterWindowPixmap(this); } Decoration::Renderer *SceneQPainter::createDecorationRenderer(Decoration::DecoratedClientImpl *impl) { return new SceneQPainterDecorationRenderer(impl); } //**************************************** // QPainterWindowPixmap //**************************************** QPainterWindowPixmap::QPainterWindowPixmap(Scene::Window *window) : WindowPixmap(window) { } QPainterWindowPixmap::QPainterWindowPixmap(const QPointer &subSurface, WindowPixmap *parent) : WindowPixmap(subSurface, parent) { } QPainterWindowPixmap::~QPainterWindowPixmap() { } void QPainterWindowPixmap::create() { if (isValid()) { return; } KWin::WindowPixmap::create(); if (!isValid()) { return; } if (!surface()) { // That's an internal client. m_image = internalImage(); return; } // performing deep copy, this could probably be improved m_image = buffer()->data().copy(); if (auto s = surface()) { s->resetTrackedDamage(); } } WindowPixmap *QPainterWindowPixmap::createChild(const QPointer &subSurface) { return new QPainterWindowPixmap(subSurface, this); } void QPainterWindowPixmap::updateBuffer() { const auto oldBuffer = buffer(); WindowPixmap::updateBuffer(); const auto &b = buffer(); if (!surface()) { // That's an internal client. m_image = internalImage(); return; } if (b.isNull()) { m_image = QImage(); return; } if (b == oldBuffer) { return; } // perform deep copy m_image = b->data().copy(); if (auto s = surface()) { s->resetTrackedDamage(); } } bool QPainterWindowPixmap::isValid() const { if (!m_image.isNull()) { return true; } return WindowPixmap::isValid(); } QPainterEffectFrame::QPainterEffectFrame(EffectFrameImpl *frame, SceneQPainter *scene) : Scene::EffectFrame(frame) , m_scene(scene) { } QPainterEffectFrame::~QPainterEffectFrame() { } void QPainterEffectFrame::render(QRegion region, double opacity, double frameOpacity) { Q_UNUSED(region) Q_UNUSED(opacity) // TODO: adjust opacity if (m_effectFrame->geometry().isEmpty()) { return; // Nothing to display } QPainter *painter = m_scene->scenePainter(); // Render the actual frame if (m_effectFrame->style() == EffectFrameUnstyled) { painter->save(); painter->setPen(Qt::NoPen); QColor color(Qt::black); color.setAlphaF(frameOpacity); painter->setBrush(color); painter->setRenderHint(QPainter::Antialiasing); painter->drawRoundedRect(m_effectFrame->geometry().adjusted(-5, -5, 5, 5), 5.0, 5.0); painter->restore(); } else if (m_effectFrame->style() == EffectFrameStyled) { qreal left, top, right, bottom; m_effectFrame->frame().getMargins(left, top, right, bottom); // m_geometry is the inner geometry QRect geom = m_effectFrame->geometry().adjusted(-left, -top, right, bottom); painter->drawPixmap(geom, m_effectFrame->frame().framePixmap()); } if (!m_effectFrame->selection().isNull()) { painter->drawPixmap(m_effectFrame->selection(), m_effectFrame->selectionFrame().framePixmap()); } // Render icon if (!m_effectFrame->icon().isNull() && !m_effectFrame->iconSize().isEmpty()) { const QPoint topLeft(m_effectFrame->geometry().x(), m_effectFrame->geometry().center().y() - m_effectFrame->iconSize().height() / 2); const QRect geom = QRect(topLeft, m_effectFrame->iconSize()); painter->drawPixmap(geom, m_effectFrame->icon().pixmap(m_effectFrame->iconSize())); } // Render text if (!m_effectFrame->text().isEmpty()) { // Determine position on texture to paint text QRect rect(QPoint(0, 0), m_effectFrame->geometry().size()); if (!m_effectFrame->icon().isNull() && !m_effectFrame->iconSize().isEmpty()) { rect.setLeft(m_effectFrame->iconSize().width()); } // If static size elide text as required QString text = m_effectFrame->text(); if (m_effectFrame->isStatic()) { QFontMetrics metrics(m_effectFrame->text()); text = metrics.elidedText(text, Qt::ElideRight, rect.width()); } painter->save(); painter->setFont(m_effectFrame->font()); if (m_effectFrame->style() == EffectFrameStyled) { painter->setPen(m_effectFrame->styledTextColor()); } else { // TODO: What about no frame? Custom color setting required painter->setPen(Qt::white); } painter->drawText(rect.translated(m_effectFrame->geometry().topLeft()), m_effectFrame->alignment(), text); painter->restore(); } } //**************************************** // QPainterShadow //**************************************** SceneQPainterShadow::SceneQPainterShadow(Toplevel* toplevel) : Shadow(toplevel) { } SceneQPainterShadow::~SceneQPainterShadow() { } void SceneQPainterShadow::buildQuads() { // Do not draw shadows if window width or window height is less than // 5 px. 5 is an arbitrary choice. if (topLevel()->width() < 5 || topLevel()->height() < 5) { m_shadowQuads.clear(); setShadowRegion(QRegion()); return; } const QSizeF top(elementSize(ShadowElementTop)); const QSizeF topRight(elementSize(ShadowElementTopRight)); const QSizeF right(elementSize(ShadowElementRight)); const QSizeF bottomRight(elementSize(ShadowElementBottomRight)); const QSizeF bottom(elementSize(ShadowElementBottom)); const QSizeF bottomLeft(elementSize(ShadowElementBottomLeft)); const QSizeF left(elementSize(ShadowElementLeft)); const QSizeF topLeft(elementSize(ShadowElementTopLeft)); const QRectF outerRect(QPointF(-leftOffset(), -topOffset()), QPointF(topLevel()->width() + rightOffset(), topLevel()->height() + bottomOffset())); const int width = std::max({topLeft.width(), left.width(), bottomLeft.width()}) + std::max(top.width(), bottom.width()) + std::max({topRight.width(), right.width(), bottomRight.width()}); const int height = std::max({topLeft.height(), top.height(), topRight.height()}) + std::max(left.height(), right.height()) + std::max({bottomLeft.height(), bottom.height(), bottomRight.height()}); QRectF topLeftRect(outerRect.topLeft(), topLeft); QRectF topRightRect(outerRect.topRight() - QPointF(topRight.width(), 0), topRight); QRectF bottomRightRect( outerRect.bottomRight() - QPointF(bottomRight.width(), bottomRight.height()), bottomRight); QRectF bottomLeftRect(outerRect.bottomLeft() - QPointF(0, bottomLeft.height()), bottomLeft); // Re-distribute the corner tiles so no one of them is overlapping with others. // By doing this, we assume that shadow's corner tiles are symmetric // and it is OK to not draw top/right/bottom/left tile between corners. // For example, let's say top-left and top-right tiles are overlapping. // In that case, the right side of the top-left tile will be shifted to left, // the left side of the top-right tile will shifted to right, and the top // tile won't be rendered. bool drawTop = true; if (topLeftRect.right() >= topRightRect.left()) { const float halfOverlap = qAbs(topLeftRect.right() - topRightRect.left()) / 2; topLeftRect.setRight(topLeftRect.right() - std::floor(halfOverlap)); topRightRect.setLeft(topRightRect.left() + std::ceil(halfOverlap)); drawTop = false; } bool drawRight = true; if (topRightRect.bottom() >= bottomRightRect.top()) { const float halfOverlap = qAbs(topRightRect.bottom() - bottomRightRect.top()) / 2; topRightRect.setBottom(topRightRect.bottom() - std::floor(halfOverlap)); bottomRightRect.setTop(bottomRightRect.top() + std::ceil(halfOverlap)); drawRight = false; } bool drawBottom = true; if (bottomLeftRect.right() >= bottomRightRect.left()) { const float halfOverlap = qAbs(bottomLeftRect.right() - bottomRightRect.left()) / 2; bottomLeftRect.setRight(bottomLeftRect.right() - std::floor(halfOverlap)); bottomRightRect.setLeft(bottomRightRect.left() + std::ceil(halfOverlap)); drawBottom = false; } bool drawLeft = true; if (topLeftRect.bottom() >= bottomLeftRect.top()) { const float halfOverlap = qAbs(topLeftRect.bottom() - bottomLeftRect.top()) / 2; topLeftRect.setBottom(topLeftRect.bottom() - std::floor(halfOverlap)); bottomLeftRect.setTop(bottomLeftRect.top() + std::ceil(halfOverlap)); drawLeft = false; } qreal tx1 = 0.0, tx2 = 0.0, ty1 = 0.0, ty2 = 0.0; m_shadowQuads.clear(); tx1 = 0.0; ty1 = 0.0; tx2 = topLeftRect.width(); ty2 = topLeftRect.height(); WindowQuad topLeftQuad(WindowQuadShadow); topLeftQuad[0] = WindowVertex(topLeftRect.left(), topLeftRect.top(), tx1, ty1); topLeftQuad[1] = WindowVertex(topLeftRect.right(), topLeftRect.top(), tx2, ty1); topLeftQuad[2] = WindowVertex(topLeftRect.right(), topLeftRect.bottom(), tx2, ty2); topLeftQuad[3] = WindowVertex(topLeftRect.left(), topLeftRect.bottom(), tx1, ty2); m_shadowQuads.append(topLeftQuad); tx1 = width - topRightRect.width(); ty1 = 0.0; tx2 = width; ty2 = topRightRect.height(); WindowQuad topRightQuad(WindowQuadShadow); topRightQuad[0] = WindowVertex(topRightRect.left(), topRightRect.top(), tx1, ty1); topRightQuad[1] = WindowVertex(topRightRect.right(), topRightRect.top(), tx2, ty1); topRightQuad[2] = WindowVertex(topRightRect.right(), topRightRect.bottom(), tx2, ty2); topRightQuad[3] = WindowVertex(topRightRect.left(), topRightRect.bottom(), tx1, ty2); m_shadowQuads.append(topRightQuad); tx1 = width - bottomRightRect.width(); tx2 = width; ty1 = height - bottomRightRect.height(); ty2 = height; WindowQuad bottomRightQuad(WindowQuadShadow); bottomRightQuad[0] = WindowVertex(bottomRightRect.left(), bottomRightRect.top(), tx1, ty1); bottomRightQuad[1] = WindowVertex(bottomRightRect.right(), bottomRightRect.top(), tx2, ty1); bottomRightQuad[2] = WindowVertex(bottomRightRect.right(), bottomRightRect.bottom(), tx2, ty2); bottomRightQuad[3] = WindowVertex(bottomRightRect.left(), bottomRightRect.bottom(), tx1, ty2); m_shadowQuads.append(bottomRightQuad); tx1 = 0.0; tx2 = bottomLeftRect.width(); ty1 = height - bottomLeftRect.height(); ty2 = height; WindowQuad bottomLeftQuad(WindowQuadShadow); bottomLeftQuad[0] = WindowVertex(bottomLeftRect.left(), bottomLeftRect.top(), tx1, ty1); bottomLeftQuad[1] = WindowVertex(bottomLeftRect.right(), bottomLeftRect.top(), tx2, ty1); bottomLeftQuad[2] = WindowVertex(bottomLeftRect.right(), bottomLeftRect.bottom(), tx2, ty2); bottomLeftQuad[3] = WindowVertex(bottomLeftRect.left(), bottomLeftRect.bottom(), tx1, ty2); m_shadowQuads.append(bottomLeftQuad); if (drawTop) { QRectF topRect( topLeftRect.topRight(), topRightRect.bottomLeft()); tx1 = topLeft.width(); ty1 = 0.0; tx2 = width - topRight.width(); ty2 = topRect.height(); WindowQuad topQuad(WindowQuadShadow); topQuad[0] = WindowVertex(topRect.left(), topRect.top(), tx1, ty1); topQuad[1] = WindowVertex(topRect.right(), topRect.top(), tx2, ty1); topQuad[2] = WindowVertex(topRect.right(), topRect.bottom(), tx2, ty2); topQuad[3] = WindowVertex(topRect.left(), topRect.bottom(), tx1, ty2); m_shadowQuads.append(topQuad); } if (drawRight) { QRectF rightRect( topRightRect.bottomLeft(), bottomRightRect.topRight()); tx1 = width - rightRect.width(); ty1 = topRight.height(); tx2 = width; ty2 = height - bottomRight.height(); WindowQuad rightQuad(WindowQuadShadow); rightQuad[0] = WindowVertex(rightRect.left(), rightRect.top(), tx1, ty1); rightQuad[1] = WindowVertex(rightRect.right(), rightRect.top(), tx2, ty1); rightQuad[2] = WindowVertex(rightRect.right(), rightRect.bottom(), tx2, ty2); rightQuad[3] = WindowVertex(rightRect.left(), rightRect.bottom(), tx1, ty2); m_shadowQuads.append(rightQuad); } if (drawBottom) { QRectF bottomRect( bottomLeftRect.topRight(), bottomRightRect.bottomLeft()); tx1 = bottomLeft.width(); ty1 = height - bottomRect.height(); tx2 = width - bottomRight.width(); ty2 = height; WindowQuad bottomQuad(WindowQuadShadow); bottomQuad[0] = WindowVertex(bottomRect.left(), bottomRect.top(), tx1, ty1); bottomQuad[1] = WindowVertex(bottomRect.right(), bottomRect.top(), tx2, ty1); bottomQuad[2] = WindowVertex(bottomRect.right(), bottomRect.bottom(), tx2, ty2); bottomQuad[3] = WindowVertex(bottomRect.left(), bottomRect.bottom(), tx1, ty2); m_shadowQuads.append(bottomQuad); } if (drawLeft) { QRectF leftRect( topLeftRect.bottomLeft(), bottomLeftRect.topRight()); tx1 = 0.0; ty1 = topLeft.height(); tx2 = leftRect.width(); ty2 = height - bottomRight.height(); WindowQuad leftQuad(WindowQuadShadow); leftQuad[0] = WindowVertex(leftRect.left(), leftRect.top(), tx1, ty1); leftQuad[1] = WindowVertex(leftRect.right(), leftRect.top(), tx2, ty1); leftQuad[2] = WindowVertex(leftRect.right(), leftRect.bottom(), tx2, ty2); leftQuad[3] = WindowVertex(leftRect.left(), leftRect.bottom(), tx1, ty2); m_shadowQuads.append(leftQuad); } } bool SceneQPainterShadow::prepareBackend() { if (hasDecorationShadow()) { m_texture = decorationShadowImage(); return true; } const QPixmap &topLeft = shadowPixmap(ShadowElementTopLeft); const QPixmap &top = shadowPixmap(ShadowElementTop); const QPixmap &topRight = shadowPixmap(ShadowElementTopRight); const QPixmap &bottomLeft = shadowPixmap(ShadowElementBottomLeft); const QPixmap &bottom = shadowPixmap(ShadowElementBottom); const QPixmap &bottomRight = shadowPixmap(ShadowElementBottomRight); const QPixmap &left = shadowPixmap(ShadowElementLeft); const QPixmap &right = shadowPixmap(ShadowElementRight); const int width = std::max({topLeft.width(), left.width(), bottomLeft.width()}) + std::max(top.width(), bottom.width()) + std::max({topRight.width(), right.width(), bottomRight.width()}); const int height = std::max({topLeft.height(), top.height(), topRight.height()}) + std::max(left.height(), right.height()) + std::max({bottomLeft.height(), bottom.height(), bottomRight.height()}); if (width == 0 || height == 0) { return false; } QImage image(width, height, QImage::Format_ARGB32_Premultiplied); image.fill(Qt::transparent); QPainter painter; painter.begin(&image); painter.drawPixmap(0, 0, topLeft); painter.drawPixmap(topLeft.width(), 0, top); painter.drawPixmap(width - topRight.width(), 0, topRight); painter.drawPixmap(0, height - bottomLeft.height(), bottomLeft); painter.drawPixmap(bottomLeft.width(), height - bottom.height(), bottom); painter.drawPixmap(width - bottomRight.width(), height - bottomRight.height(), bottomRight); painter.drawPixmap(0, topLeft.height(), left); painter.drawPixmap(width - right.width(), topRight.height(), right); painter.end(); m_texture = image; return true; } //**************************************** // QPainterDecorationRenderer //**************************************** SceneQPainterDecorationRenderer::SceneQPainterDecorationRenderer(Decoration::DecoratedClientImpl *client) : Renderer(client) { connect(this, &Renderer::renderScheduled, client->client(), static_cast(&AbstractClient::addRepaint)); } SceneQPainterDecorationRenderer::~SceneQPainterDecorationRenderer() = default; QImage SceneQPainterDecorationRenderer::image(SceneQPainterDecorationRenderer::DecorationPart part) const { Q_ASSERT(part != DecorationPart::Count); return m_images[int(part)]; } void SceneQPainterDecorationRenderer::render() { const QRegion scheduled = getScheduled(); if (scheduled.isEmpty()) { return; } if (areImageSizesDirty()) { resizeImages(); resetImageSizesDirty(); } auto imageSize = [this](DecorationPart part) { return m_images[int(part)].size() / m_images[int(part)].devicePixelRatio(); }; const QRect top(QPoint(0, 0), imageSize(DecorationPart::Top)); const QRect left(QPoint(0, top.height()), imageSize(DecorationPart::Left)); const QRect right(QPoint(top.width() - imageSize(DecorationPart::Right).width(), top.height()), imageSize(DecorationPart::Right)); const QRect bottom(QPoint(0, left.y() + left.height()), imageSize(DecorationPart::Bottom)); const QRect geometry = scheduled.boundingRect(); auto renderPart = [this](const QRect &rect, const QRect &partRect, int index) { if (rect.isEmpty()) { return; } QPainter painter(&m_images[index]); painter.setRenderHint(QPainter::Antialiasing); painter.setWindow(QRect(partRect.topLeft(), partRect.size() * m_images[index].devicePixelRatio())); painter.setClipRect(rect); painter.save(); // clear existing part painter.setCompositionMode(QPainter::CompositionMode_Source); painter.fillRect(rect, Qt::transparent); painter.restore(); client()->decoration()->paint(&painter, rect); }; renderPart(left.intersected(geometry), left, int(DecorationPart::Left)); renderPart(top.intersected(geometry), top, int(DecorationPart::Top)); renderPart(right.intersected(geometry), right, int(DecorationPart::Right)); renderPart(bottom.intersected(geometry), bottom, int(DecorationPart::Bottom)); } void SceneQPainterDecorationRenderer::resizeImages() { QRect left, top, right, bottom; client()->client()->layoutDecorationRects(left, top, right, bottom); auto checkAndCreate = [this](int index, const QSize &size) { auto dpr = client()->client()->screenScale(); if (m_images[index].size() != size * dpr || m_images[index].devicePixelRatio() != dpr) { m_images[index] = QImage(size * dpr, QImage::Format_ARGB32_Premultiplied); m_images[index].setDevicePixelRatio(dpr); m_images[index].fill(Qt::transparent); } }; checkAndCreate(int(DecorationPart::Left), left.size()); checkAndCreate(int(DecorationPart::Right), right.size()); checkAndCreate(int(DecorationPart::Top), top.size()); checkAndCreate(int(DecorationPart::Bottom), bottom.size()); } void SceneQPainterDecorationRenderer::reparent(Deleted *deleted) { render(); Renderer::reparent(deleted); } QPainterFactory::QPainterFactory(QObject *parent) : SceneFactory(parent) { } QPainterFactory::~QPainterFactory() = default; Scene *QPainterFactory::create(QObject *parent) const { auto s = SceneQPainter::createScene(parent); if (s && s->initFailed()) { delete s; s = nullptr; } return s; } } // KWin diff --git a/plugins/scenes/xrender/scene_xrender.cpp b/plugins/scenes/xrender/scene_xrender.cpp index 55ae3f775..506b8ec67 100644 --- a/plugins/scenes/xrender/scene_xrender.cpp +++ b/plugins/scenes/xrender/scene_xrender.cpp @@ -1,1347 +1,1346 @@ /******************************************************************** KWin - the KDE window manager This file is part of the KDE project. Copyright (C) 2006 Lubos Lunak Copyright (C) 2009 Fredrik Höglund Copyright (C) 2013 Martin Gräßlin This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see . *********************************************************************/ #include "scene_xrender.h" #include "utils.h" #ifdef KWIN_HAVE_XRENDER_COMPOSITING #include "logging.h" #include "toplevel.h" #include "x11client.h" #include "composite.h" #include "deleted.h" #include "effects.h" #include "main.h" #include "overlaywindow.h" #include "platform.h" #include "screens.h" #include "xcbutils.h" #include "decorations/decoratedclient.h" #include #include #include #include #include #include namespace KWin { ScreenPaintData SceneXrender::screen_paint; #define DOUBLE_TO_FIXED(d) ((xcb_render_fixed_t) ((d) * 65536)) #define FIXED_TO_DOUBLE(f) ((double) ((f) / 65536.0)) //**************************************** // XRenderBackend //**************************************** XRenderBackend::XRenderBackend() : m_buffer(XCB_RENDER_PICTURE_NONE) , m_failed(false) { if (!Xcb::Extensions::self()->isRenderAvailable()) { setFailed("No XRender extension available"); return; } if (!Xcb::Extensions::self()->isFixesRegionAvailable()) { setFailed("No XFixes v3+ extension available"); return; } } XRenderBackend::~XRenderBackend() { if (m_buffer) { xcb_render_free_picture(connection(), m_buffer); } } OverlayWindow* XRenderBackend::overlayWindow() { return nullptr; } void XRenderBackend::showOverlay() { } void XRenderBackend::setBuffer(xcb_render_picture_t buffer) { if (m_buffer != XCB_RENDER_PICTURE_NONE) { xcb_render_free_picture(connection(), m_buffer); } m_buffer = buffer; } void XRenderBackend::setFailed(const QString& reason) { qCCritical(KWIN_XRENDER) << "Creating the XRender backend failed: " << reason; m_failed = true; } void XRenderBackend::screenGeometryChanged(const QSize &size) { Q_UNUSED(size) } //**************************************** // X11XRenderBackend //**************************************** X11XRenderBackend::X11XRenderBackend() : XRenderBackend() , m_overlayWindow(kwinApp()->platform()->createOverlayWindow()) , m_front(XCB_RENDER_PICTURE_NONE) , m_format(0) { init(true); } X11XRenderBackend::~X11XRenderBackend() { if (m_front) { xcb_render_free_picture(connection(), m_front); } m_overlayWindow->destroy(); } OverlayWindow* X11XRenderBackend::overlayWindow() { return m_overlayWindow.data(); } void X11XRenderBackend::showOverlay() { if (m_overlayWindow->window()) // show the window only after the first pass, since m_overlayWindow->show(); // that pass may take long } void X11XRenderBackend::init(bool createOverlay) { if (m_front != XCB_RENDER_PICTURE_NONE) xcb_render_free_picture(connection(), m_front); bool haveOverlay = createOverlay ? m_overlayWindow->create() : (m_overlayWindow->window() != XCB_WINDOW_NONE); if (haveOverlay) { m_overlayWindow->setup(XCB_WINDOW_NONE); ScopedCPointer attribs(xcb_get_window_attributes_reply(connection(), xcb_get_window_attributes_unchecked(connection(), m_overlayWindow->window()), nullptr)); if (!attribs) { setFailed("Failed getting window attributes for overlay window"); return; } m_format = XRenderUtils::findPictFormat(attribs->visual); if (m_format == 0) { setFailed("Failed to find XRender format for overlay window"); return; } m_front = xcb_generate_id(connection()); xcb_render_create_picture(connection(), m_front, m_overlayWindow->window(), m_format, 0, nullptr); } else { // create XRender picture for the root window m_format = XRenderUtils::findPictFormat(defaultScreen()->root_visual); if (m_format == 0) { setFailed("Failed to find XRender format for root window"); return; // error } m_front = xcb_generate_id(connection()); const uint32_t values[] = {XCB_SUBWINDOW_MODE_INCLUDE_INFERIORS}; xcb_render_create_picture(connection(), m_front, rootWindow(), m_format, XCB_RENDER_CP_SUBWINDOW_MODE, values); } createBuffer(); } void X11XRenderBackend::createBuffer() { xcb_pixmap_t pixmap = xcb_generate_id(connection()); const auto displaySize = screens()->displaySize(); xcb_create_pixmap(connection(), Xcb::defaultDepth(), pixmap, rootWindow(), displaySize.width(), displaySize.height()); xcb_render_picture_t b = xcb_generate_id(connection()); xcb_render_create_picture(connection(), b, pixmap, m_format, 0, nullptr); xcb_free_pixmap(connection(), pixmap); // The picture owns the pixmap now setBuffer(b); } void X11XRenderBackend::present(int mask, const QRegion &damage) { const auto displaySize = screens()->displaySize(); if (mask & Scene::PAINT_SCREEN_REGION) { // Use the damage region as the clip region for the root window XFixesRegion frontRegion(damage); xcb_xfixes_set_picture_clip_region(connection(), m_front, frontRegion, 0, 0); // copy composed buffer to the root window xcb_xfixes_set_picture_clip_region(connection(), buffer(), XCB_XFIXES_REGION_NONE, 0, 0); xcb_render_composite(connection(), XCB_RENDER_PICT_OP_SRC, buffer(), XCB_RENDER_PICTURE_NONE, m_front, 0, 0, 0, 0, 0, 0, displaySize.width(), displaySize.height()); xcb_xfixes_set_picture_clip_region(connection(), m_front, XCB_XFIXES_REGION_NONE, 0, 0); xcb_flush(connection()); } else { // copy composed buffer to the root window xcb_render_composite(connection(), XCB_RENDER_PICT_OP_SRC, buffer(), XCB_RENDER_PICTURE_NONE, m_front, 0, 0, 0, 0, 0, 0, displaySize.width(), displaySize.height()); xcb_flush(connection()); } } void X11XRenderBackend::screenGeometryChanged(const QSize &size) { Q_UNUSED(size) init(false); } bool X11XRenderBackend::usesOverlayWindow() const { return true; } //**************************************** // SceneXrender //**************************************** SceneXrender* SceneXrender::createScene(QObject *parent) { QScopedPointer backend; backend.reset(new X11XRenderBackend); if (backend->isFailed()) { return nullptr; } return new SceneXrender(backend.take(), parent); } SceneXrender::SceneXrender(XRenderBackend *backend, QObject *parent) : Scene(parent) , m_backend(backend) { } SceneXrender::~SceneXrender() { SceneXrender::Window::cleanup(); SceneXrender::EffectFrame::cleanup(); } bool SceneXrender::initFailed() const { return false; } // the entry point for painting qint64 SceneXrender::paint(QRegion damage, ToplevelList toplevels) { QElapsedTimer renderTimer; renderTimer.start(); createStackingOrder(toplevels); int mask = 0; QRegion updateRegion, validRegion; paintScreen(&mask, damage, QRegion(), &updateRegion, &validRegion); m_backend->showOverlay(); m_backend->present(mask, updateRegion); // do cleanup clearStackingOrder(); return renderTimer.nsecsElapsed(); } void SceneXrender::paintGenericScreen(int mask, ScreenPaintData data) { screen_paint = data; // save, transformations will be done when painting windows Scene::paintGenericScreen(mask, data); } void SceneXrender::paintDesktop(int desktop, int mask, const QRegion ®ion, ScreenPaintData &data) { PaintClipper::push(region); KWin::Scene::paintDesktop(desktop, mask, region, data); PaintClipper::pop(region); } // fill the screen background void SceneXrender::paintBackground(QRegion region) { xcb_render_color_t col = { 0, 0, 0, 0xffff }; // black const QVector &rects = Xcb::regionToRects(region); xcb_render_fill_rectangles(connection(), XCB_RENDER_PICT_OP_SRC, xrenderBufferPicture(), col, rects.count(), rects.data()); } Scene::Window *SceneXrender::createWindow(Toplevel *toplevel) { return new Window(toplevel, this); } Scene::EffectFrame *SceneXrender::createEffectFrame(EffectFrameImpl *frame) { return new SceneXrender::EffectFrame(frame); } Shadow *SceneXrender::createShadow(Toplevel *toplevel) { return new SceneXRenderShadow(toplevel); } Decoration::Renderer *SceneXrender::createDecorationRenderer(Decoration::DecoratedClientImpl* client) { return new SceneXRenderDecorationRenderer(client); } //**************************************** // SceneXrender::Window //**************************************** XRenderPicture *SceneXrender::Window::s_tempPicture = nullptr; QRect SceneXrender::Window::temp_visibleRect; XRenderPicture *SceneXrender::Window::s_fadeAlphaPicture = nullptr; SceneXrender::Window::Window(Toplevel* c, SceneXrender *scene) : Scene::Window(c) , m_scene(scene) , format(XRenderUtils::findPictFormat(c->visual())) { } SceneXrender::Window::~Window() { - discardShape(); } void SceneXrender::Window::cleanup() { delete s_tempPicture; s_tempPicture = nullptr; delete s_fadeAlphaPicture; s_fadeAlphaPicture = nullptr; } // Maps window coordinates to screen coordinates QRect SceneXrender::Window::mapToScreen(int mask, const WindowPaintData &data, const QRect &rect) const { QRect r = rect; if (mask & PAINT_WINDOW_TRANSFORMED) { // Apply the window transformation r.moveTo(r.x() * data.xScale() + data.xTranslation(), r.y() * data.yScale() + data.yTranslation()); r.setWidth(r.width() * data.xScale()); r.setHeight(r.height() * data.yScale()); } // Move the rectangle to the screen position r.translate(x(), y()); if (mask & PAINT_SCREEN_TRANSFORMED) { // Apply the screen transformation r.moveTo(r.x() * screen_paint.xScale() + screen_paint.xTranslation(), r.y() * screen_paint.yScale() + screen_paint.yTranslation()); r.setWidth(r.width() * screen_paint.xScale()); r.setHeight(r.height() * screen_paint.yScale()); } return r; } // Maps window coordinates to screen coordinates QPoint SceneXrender::Window::mapToScreen(int mask, const WindowPaintData &data, const QPoint &point) const { QPoint pt = point; if (mask & PAINT_WINDOW_TRANSFORMED) { // Apply the window transformation pt.rx() = pt.x() * data.xScale() + data.xTranslation(); pt.ry() = pt.y() * data.yScale() + data.yTranslation(); } // Move the point to the screen position pt += QPoint(x(), y()); if (mask & PAINT_SCREEN_TRANSFORMED) { // Apply the screen transformation pt.rx() = pt.x() * screen_paint.xScale() + screen_paint.xTranslation(); pt.ry() = pt.y() * screen_paint.yScale() + screen_paint.yTranslation(); } return pt; } void SceneXrender::Window::prepareTempPixmap() { const QSize oldSize = temp_visibleRect.size(); temp_visibleRect = toplevel->visibleRect().translated(-toplevel->pos()); if (s_tempPicture && (oldSize.width() < temp_visibleRect.width() || oldSize.height() < temp_visibleRect.height())) { delete s_tempPicture; s_tempPicture = nullptr; scene_setXRenderOffscreenTarget(0); // invalidate, better crash than cause weird results for developers } if (!s_tempPicture) { xcb_pixmap_t pix = xcb_generate_id(connection()); xcb_create_pixmap(connection(), 32, pix, rootWindow(), temp_visibleRect.width(), temp_visibleRect.height()); s_tempPicture = new XRenderPicture(pix, 32); xcb_free_pixmap(connection(), pix); } const xcb_render_color_t transparent = {0, 0, 0, 0}; const xcb_rectangle_t rect = {0, 0, uint16_t(temp_visibleRect.width()), uint16_t(temp_visibleRect.height())}; xcb_render_fill_rectangles(connection(), XCB_RENDER_PICT_OP_SRC, *s_tempPicture, transparent, 1, &rect); } // paint the window void SceneXrender::Window::performPaint(int mask, QRegion region, WindowPaintData data) { setTransformedShape(QRegion()); // maybe nothing will be painted // check if there is something to paint bool opaque = isOpaque() && qFuzzyCompare(data.opacity(), 1.0); /* HACK: It seems this causes painting glitches, disable temporarily if (( mask & PAINT_WINDOW_OPAQUE ) ^ ( mask & PAINT_WINDOW_TRANSLUCENT )) { // We are only painting either opaque OR translucent windows, not both if ( mask & PAINT_WINDOW_OPAQUE && !opaque ) return; // Only painting opaque and window is translucent if ( mask & PAINT_WINDOW_TRANSLUCENT && opaque ) return; // Only painting translucent and window is opaque }*/ // Intersect the clip region with the rectangle the window occupies on the screen if (!(mask & (PAINT_WINDOW_TRANSFORMED | PAINT_SCREEN_TRANSFORMED))) region &= toplevel->visibleRect(); if (region.isEmpty()) return; XRenderWindowPixmap *pixmap = windowPixmap(); if (!pixmap || !pixmap->isValid()) { return; } xcb_render_picture_t pic = pixmap->picture(); if (pic == XCB_RENDER_PICTURE_NONE) // The render format can be null for GL and/or Xv visuals return; toplevel->resetDamage(); // set picture filter if (options->isXrenderSmoothScale()) { // only when forced, it's slow if (mask & PAINT_WINDOW_TRANSFORMED) filter = ImageFilterGood; else if (mask & PAINT_SCREEN_TRANSFORMED) filter = ImageFilterGood; else filter = ImageFilterFast; } else filter = ImageFilterFast; // do required transformations const QRect wr = mapToScreen(mask, data, QRect(0, 0, width(), height())); QRect cr = QRect(toplevel->clientPos(), toplevel->clientSize()); // Client rect (in the window) qreal xscale = 1; qreal yscale = 1; bool scaled = false; X11Client *client = dynamic_cast(toplevel); Deleted *deleted = dynamic_cast(toplevel); const QRect decorationRect = toplevel->decorationRect(); if (((client && !client->noBorder()) || (deleted && !deleted->noBorder())) && true) { // decorated client transformed_shape = decorationRect; if (toplevel->shape()) { // "xeyes" + decoration transformed_shape -= cr; transformed_shape += shape(); } } else { transformed_shape = shape(); } if (toplevel->shadow()) { transformed_shape |= toplevel->shadow()->shadowRegion(); } xcb_render_transform_t xform = { DOUBLE_TO_FIXED(1), DOUBLE_TO_FIXED(0), DOUBLE_TO_FIXED(0), DOUBLE_TO_FIXED(0), DOUBLE_TO_FIXED(1), DOUBLE_TO_FIXED(0), DOUBLE_TO_FIXED(0), DOUBLE_TO_FIXED(0), DOUBLE_TO_FIXED(1) }; static const xcb_render_transform_t identity = { DOUBLE_TO_FIXED(1), DOUBLE_TO_FIXED(0), DOUBLE_TO_FIXED(0), DOUBLE_TO_FIXED(0), DOUBLE_TO_FIXED(1), DOUBLE_TO_FIXED(0), DOUBLE_TO_FIXED(0), DOUBLE_TO_FIXED(0), DOUBLE_TO_FIXED(1) }; if (mask & PAINT_WINDOW_TRANSFORMED) { xscale = data.xScale(); yscale = data.yScale(); } if (mask & PAINT_SCREEN_TRANSFORMED) { xscale *= screen_paint.xScale(); yscale *= screen_paint.yScale(); } if (!qFuzzyCompare(xscale, 1.0) || !qFuzzyCompare(yscale, 1.0)) { scaled = true; xform.matrix11 = DOUBLE_TO_FIXED(1.0 / xscale); xform.matrix22 = DOUBLE_TO_FIXED(1.0 / yscale); // transform the shape for clipping in paintTransformedScreen() QVector rects; rects.reserve(transformed_shape.rectCount()); for (const QRect &rect : transformed_shape) { const QRect transformedRect( qRound(rect.x() * xscale), qRound(rect.y() * yscale), qRound(rect.width() * xscale), qRound(rect.height() * yscale) ); rects.append(transformedRect); } transformed_shape.setRects(rects.constData(), rects.count()); } transformed_shape.translate(mapToScreen(mask, data, QPoint(0, 0))); PaintClipper pcreg(region); // clip by the region to paint PaintClipper pc(transformed_shape); // clip by window's shape const bool wantShadow = m_shadow && !m_shadow->shadowRegion().isEmpty(); // In order to obtain a pixel perfect rescaling // we need to blit the window content togheter with // decorations in a temporary pixmap and scale // the temporary pixmap at the end. // We should do this only if there is scaling and // the window has border // This solves a number of glitches and on top of this // it optimizes painting quite a bit const bool blitInTempPixmap = xRenderOffscreen() || (data.crossFadeProgress() < 1.0 && !opaque) || (scaled && (wantShadow || (client && !client->noBorder()) || (deleted && !deleted->noBorder()))); xcb_render_picture_t renderTarget = m_scene->xrenderBufferPicture(); if (blitInTempPixmap) { if (scene_xRenderOffscreenTarget()) { temp_visibleRect = toplevel->visibleRect().translated(-toplevel->pos()); renderTarget = *scene_xRenderOffscreenTarget(); } else { prepareTempPixmap(); renderTarget = *s_tempPicture; } } else { xcb_render_set_picture_transform(connection(), pic, xform); if (filter == ImageFilterGood) { setPictureFilter(pic, KWin::Scene::ImageFilterGood); } //BEGIN OF STUPID RADEON HACK // This is needed to avoid hitting a fallback in the radeon driver. // The Render specification states that sampling pixels outside the // source picture results in alpha=0 pixels. This can be achieved by // setting the border color to transparent black, but since the border // color has the same format as the texture, it only works when the // texture has an alpha channel. So the driver falls back to software // when the repeat mode is RepeatNone, the picture has a non-identity // transformation matrix, and doesn't have an alpha channel. // Since we only scale the picture, we can work around this by setting // the repeat mode to RepeatPad. if (!window()->hasAlpha()) { const uint32_t values[] = {XCB_RENDER_REPEAT_PAD}; xcb_render_change_picture(connection(), pic, XCB_RENDER_CP_REPEAT, values); } //END OF STUPID RADEON HACK } #define MAP_RECT_TO_TARGET(_RECT_) \ if (blitInTempPixmap) _RECT_.translate(-temp_visibleRect.topLeft()); else _RECT_ = mapToScreen(mask, data, _RECT_) //BEGIN deco preparations bool noBorder = true; xcb_render_picture_t left = XCB_RENDER_PICTURE_NONE; xcb_render_picture_t top = XCB_RENDER_PICTURE_NONE; xcb_render_picture_t right = XCB_RENDER_PICTURE_NONE; xcb_render_picture_t bottom = XCB_RENDER_PICTURE_NONE; QRect dtr, dlr, drr, dbr; const SceneXRenderDecorationRenderer *renderer = nullptr; if (client) { if (client && !client->noBorder()) { if (client->isDecorated()) { SceneXRenderDecorationRenderer *r = static_cast(client->decoratedClient()->renderer()); if (r) { r->render(); renderer = r; } } noBorder = client->noBorder(); client->layoutDecorationRects(dlr, dtr, drr, dbr); } } if (deleted && !deleted->noBorder()) { renderer = static_cast(deleted->decorationRenderer()); noBorder = deleted->noBorder(); deleted->layoutDecorationRects(dlr, dtr, drr, dbr); } if (renderer) { left = renderer->picture(SceneXRenderDecorationRenderer::DecorationPart::Left); top = renderer->picture(SceneXRenderDecorationRenderer::DecorationPart::Top); right = renderer->picture(SceneXRenderDecorationRenderer::DecorationPart::Right); bottom = renderer->picture(SceneXRenderDecorationRenderer::DecorationPart::Bottom); } if (!noBorder) { MAP_RECT_TO_TARGET(dtr); MAP_RECT_TO_TARGET(dlr); MAP_RECT_TO_TARGET(drr); MAP_RECT_TO_TARGET(dbr); } //END deco preparations //BEGIN shadow preparations QRect stlr, str, strr, srr, sbrr, sbr, sblr, slr; SceneXRenderShadow* m_xrenderShadow = static_cast(m_shadow); if (wantShadow) { m_xrenderShadow->layoutShadowRects(str, strr, srr, sbrr, sbr, sblr, slr, stlr); MAP_RECT_TO_TARGET(stlr); MAP_RECT_TO_TARGET(str); MAP_RECT_TO_TARGET(strr); MAP_RECT_TO_TARGET(srr); MAP_RECT_TO_TARGET(sbrr); MAP_RECT_TO_TARGET(sbr); MAP_RECT_TO_TARGET(sblr); MAP_RECT_TO_TARGET(slr); } //BEGIN end preparations //BEGIN client preparations QRect dr = cr; if (blitInTempPixmap) { dr.translate(-temp_visibleRect.topLeft()); } else { dr = mapToScreen(mask, data, dr); // Destination rect if (scaled) { cr.moveLeft(cr.x() * xscale); cr.moveTop(cr.y() * yscale); } } const int clientRenderOp = (opaque || blitInTempPixmap) ? XCB_RENDER_PICT_OP_SRC : XCB_RENDER_PICT_OP_OVER; //END client preparations #undef MAP_RECT_TO_TARGET for (PaintClipper::Iterator iterator; !iterator.isDone(); iterator.next()) { #define RENDER_SHADOW_TILE(_TILE_, _RECT_) \ xcb_render_composite(connection(), XCB_RENDER_PICT_OP_OVER, m_xrenderShadow->picture(SceneXRenderShadow::ShadowElement##_TILE_), \ shadowAlpha, renderTarget, 0, 0, 0, 0, _RECT_.x(), _RECT_.y(), _RECT_.width(), _RECT_.height()) //shadow if (wantShadow) { xcb_render_picture_t shadowAlpha = XCB_RENDER_PICTURE_NONE; if (!opaque) { shadowAlpha = xRenderBlendPicture(data.opacity()); } RENDER_SHADOW_TILE(TopLeft, stlr); RENDER_SHADOW_TILE(Top, str); RENDER_SHADOW_TILE(TopRight, strr); RENDER_SHADOW_TILE(Left, slr); RENDER_SHADOW_TILE(Right, srr); RENDER_SHADOW_TILE(BottomLeft, sblr); RENDER_SHADOW_TILE(Bottom, sbr); RENDER_SHADOW_TILE(BottomRight, sbrr); } #undef RENDER_SHADOW_TILE // Paint the window contents if (!(client && client->isShade())) { xcb_render_picture_t clientAlpha = XCB_RENDER_PICTURE_NONE; if (!opaque) { clientAlpha = xRenderBlendPicture(data.opacity()); } xcb_render_composite(connection(), clientRenderOp, pic, clientAlpha, renderTarget, cr.x(), cr.y(), 0, 0, dr.x(), dr.y(), dr.width(), dr.height()); if (data.crossFadeProgress() < 1.0 && data.crossFadeProgress() > 0.0) { XRenderWindowPixmap *previous = previousWindowPixmap(); if (previous && previous != pixmap) { static xcb_render_color_t cFadeColor = {0, 0, 0, 0}; cFadeColor.alpha = uint16_t((1.0 - data.crossFadeProgress()) * 0xffff); if (!s_fadeAlphaPicture) { s_fadeAlphaPicture = new XRenderPicture(xRenderFill(cFadeColor)); } else { xcb_rectangle_t rect = {0, 0, 1, 1}; xcb_render_fill_rectangles(connection(), XCB_RENDER_PICT_OP_SRC, *s_fadeAlphaPicture, cFadeColor , 1, &rect); } if (previous->size() != pixmap->size()) { xcb_render_transform_t xform2 = { DOUBLE_TO_FIXED(FIXED_TO_DOUBLE(xform.matrix11) * previous->size().width() / pixmap->size().width()), DOUBLE_TO_FIXED(0), DOUBLE_TO_FIXED(0), DOUBLE_TO_FIXED(0), DOUBLE_TO_FIXED(FIXED_TO_DOUBLE(xform.matrix22) * previous->size().height() / pixmap->size().height()), DOUBLE_TO_FIXED(0), DOUBLE_TO_FIXED(0), DOUBLE_TO_FIXED(0), DOUBLE_TO_FIXED(1) }; xcb_render_set_picture_transform(connection(), previous->picture(), xform2); } xcb_render_composite(connection(), opaque ? XCB_RENDER_PICT_OP_OVER : XCB_RENDER_PICT_OP_ATOP, previous->picture(), *s_fadeAlphaPicture, renderTarget, cr.x(), cr.y(), 0, 0, dr.x(), dr.y(), dr.width(), dr.height()); if (previous->size() != pixmap->size()) { xcb_render_set_picture_transform(connection(), previous->picture(), identity); } } } if (!opaque) transformed_shape = QRegion(); } if (client || deleted) { if (!noBorder) { xcb_render_picture_t decorationAlpha = xRenderBlendPicture(data.opacity()); auto renderDeco = [decorationAlpha, renderTarget](xcb_render_picture_t deco, const QRect &rect) { if (deco == XCB_RENDER_PICTURE_NONE) { return; } xcb_render_composite(connection(), XCB_RENDER_PICT_OP_OVER, deco, decorationAlpha, renderTarget, 0, 0, 0, 0, rect.x(), rect.y(), rect.width(), rect.height()); }; renderDeco(top, dtr); renderDeco(left, dlr); renderDeco(right, drr); renderDeco(bottom, dbr); } } if (data.brightness() != 1.0) { // fake brightness change by overlaying black const float alpha = (1 - data.brightness()) * data.opacity(); xcb_rectangle_t rect; if (blitInTempPixmap) { rect.x = -temp_visibleRect.left(); rect.y = -temp_visibleRect.top(); rect.width = width(); rect.height = height(); } else { rect.x = wr.x(); rect.y = wr.y(); rect.width = wr.width(); rect.height = wr.height(); } xcb_render_fill_rectangles(connection(), XCB_RENDER_PICT_OP_OVER, renderTarget, preMultiply(data.brightness() < 1.0 ? QColor(0,0,0,255*alpha) : QColor(255,255,255,-alpha*255)), 1, &rect); } if (blitInTempPixmap) { const QRect r = mapToScreen(mask, data, temp_visibleRect); xcb_render_set_picture_transform(connection(), *s_tempPicture, xform); setPictureFilter(*s_tempPicture, filter); xcb_render_composite(connection(), XCB_RENDER_PICT_OP_OVER, *s_tempPicture, XCB_RENDER_PICTURE_NONE, m_scene->xrenderBufferPicture(), 0, 0, 0, 0, r.x(), r.y(), r.width(), r.height()); xcb_render_set_picture_transform(connection(), *s_tempPicture, identity); } } if (scaled && !blitInTempPixmap) { xcb_render_set_picture_transform(connection(), pic, identity); if (filter == ImageFilterGood) setPictureFilter(pic, KWin::Scene::ImageFilterFast); if (!window()->hasAlpha()) { const uint32_t values[] = {XCB_RENDER_REPEAT_NONE}; xcb_render_change_picture(connection(), pic, XCB_RENDER_CP_REPEAT, values); } } if (xRenderOffscreen()) scene_setXRenderOffscreenTarget(*s_tempPicture); } void SceneXrender::Window::setPictureFilter(xcb_render_picture_t pic, Scene::ImageFilterType filter) { QByteArray filterName; switch (filter) { case KWin::Scene::ImageFilterFast: filterName = QByteArray("fast"); break; case KWin::Scene::ImageFilterGood: filterName = QByteArray("good"); break; } xcb_render_set_picture_filter(connection(), pic, filterName.length(), filterName.constData(), 0, nullptr); } WindowPixmap* SceneXrender::Window::createWindowPixmap() { return new XRenderWindowPixmap(this, format); } void SceneXrender::screenGeometryChanged(const QSize &size) { Scene::screenGeometryChanged(size); m_backend->screenGeometryChanged(size); } //**************************************** // XRenderWindowPixmap //**************************************** XRenderWindowPixmap::XRenderWindowPixmap(Scene::Window *window, xcb_render_pictformat_t format) : WindowPixmap(window) , m_picture(XCB_RENDER_PICTURE_NONE) , m_format(format) { } XRenderWindowPixmap::~XRenderWindowPixmap() { if (m_picture != XCB_RENDER_PICTURE_NONE) { xcb_render_free_picture(connection(), m_picture); } } void XRenderWindowPixmap::create() { if (isValid()) { return; } KWin::WindowPixmap::create(); if (!isValid()) { return; } m_picture = xcb_generate_id(connection()); xcb_render_create_picture(connection(), m_picture, pixmap(), m_format, 0, nullptr); } //**************************************** // SceneXrender::EffectFrame //**************************************** XRenderPicture *SceneXrender::EffectFrame::s_effectFrameCircle = nullptr; SceneXrender::EffectFrame::EffectFrame(EffectFrameImpl* frame) : Scene::EffectFrame(frame) { m_picture = nullptr; m_textPicture = nullptr; m_iconPicture = nullptr; m_selectionPicture = nullptr; } SceneXrender::EffectFrame::~EffectFrame() { delete m_picture; delete m_textPicture; delete m_iconPicture; delete m_selectionPicture; } void SceneXrender::EffectFrame::cleanup() { delete s_effectFrameCircle; s_effectFrameCircle = nullptr; } void SceneXrender::EffectFrame::free() { delete m_picture; m_picture = nullptr; delete m_textPicture; m_textPicture = nullptr; delete m_iconPicture; m_iconPicture = nullptr; delete m_selectionPicture; m_selectionPicture = nullptr; } void SceneXrender::EffectFrame::freeIconFrame() { delete m_iconPicture; m_iconPicture = nullptr; } void SceneXrender::EffectFrame::freeTextFrame() { delete m_textPicture; m_textPicture = nullptr; } void SceneXrender::EffectFrame::freeSelection() { delete m_selectionPicture; m_selectionPicture = nullptr; } void SceneXrender::EffectFrame::crossFadeIcon() { // TODO: implement me } void SceneXrender::EffectFrame::crossFadeText() { // TODO: implement me } void SceneXrender::EffectFrame::render(QRegion region, double opacity, double frameOpacity) { Q_UNUSED(region) if (m_effectFrame->geometry().isEmpty()) { return; // Nothing to display } // Render the actual frame if (m_effectFrame->style() == EffectFrameUnstyled) { renderUnstyled(effects->xrenderBufferPicture(), m_effectFrame->geometry(), opacity * frameOpacity); } else if (m_effectFrame->style() == EffectFrameStyled) { if (!m_picture) { // Lazy creation updatePicture(); } if (m_picture) { qreal left, top, right, bottom; m_effectFrame->frame().getMargins(left, top, right, bottom); // m_geometry is the inner geometry QRect geom = m_effectFrame->geometry().adjusted(-left, -top, right, bottom); xcb_render_composite(connection(), XCB_RENDER_PICT_OP_OVER, *m_picture, XCB_RENDER_PICTURE_NONE, effects->xrenderBufferPicture(), 0, 0, 0, 0, geom.x(), geom.y(), geom.width(), geom.height()); } } if (!m_effectFrame->selection().isNull()) { if (!m_selectionPicture) { // Lazy creation const QPixmap pix = m_effectFrame->selectionFrame().framePixmap(); if (!pix.isNull()) // don't try if there's no content m_selectionPicture = new XRenderPicture(m_effectFrame->selectionFrame().framePixmap().toImage()); } if (m_selectionPicture) { const QRect geom = m_effectFrame->selection(); xcb_render_composite(connection(), XCB_RENDER_PICT_OP_OVER, *m_selectionPicture, XCB_RENDER_PICTURE_NONE, effects->xrenderBufferPicture(), 0, 0, 0, 0, geom.x(), geom.y(), geom.width(), geom.height()); } } XRenderPicture fill = xRenderBlendPicture(opacity); // Render icon if (!m_effectFrame->icon().isNull() && !m_effectFrame->iconSize().isEmpty()) { QPoint topLeft(m_effectFrame->geometry().x(), m_effectFrame->geometry().center().y() - m_effectFrame->iconSize().height() / 2); if (!m_iconPicture) // lazy creation m_iconPicture = new XRenderPicture(m_effectFrame->icon().pixmap(m_effectFrame->iconSize()).toImage()); QRect geom = QRect(topLeft, m_effectFrame->iconSize()); xcb_render_composite(connection(), XCB_RENDER_PICT_OP_OVER, *m_iconPicture, fill, effects->xrenderBufferPicture(), 0, 0, 0, 0, geom.x(), geom.y(), geom.width(), geom.height()); } // Render text if (!m_effectFrame->text().isEmpty()) { if (!m_textPicture) { // Lazy creation updateTextPicture(); } if (m_textPicture) { xcb_render_composite(connection(), XCB_RENDER_PICT_OP_OVER, *m_textPicture, fill, effects->xrenderBufferPicture(), 0, 0, 0, 0, m_effectFrame->geometry().x(), m_effectFrame->geometry().y(), m_effectFrame->geometry().width(), m_effectFrame->geometry().height()); } } } void SceneXrender::EffectFrame::renderUnstyled(xcb_render_picture_t pict, const QRect &rect, qreal opacity) { const int roundness = 5; const QRect area = rect.adjusted(-roundness, -roundness, roundness, roundness); xcb_rectangle_t rects[3]; // center rects[0].x = area.left(); rects[0].y = area.top() + roundness; rects[0].width = area.width(); rects[0].height = area.height() - roundness * 2; // top rects[1].x = area.left() + roundness; rects[1].y = area.top(); rects[1].width = area.width() - roundness * 2; rects[1].height = roundness; // bottom rects[2].x = area.left() + roundness; rects[2].y = area.top() + area.height() - roundness; rects[2].width = area.width() - roundness * 2; rects[2].height = roundness; xcb_render_color_t color = {0, 0, 0, uint16_t(opacity * 0xffff)}; xcb_render_fill_rectangles(connection(), XCB_RENDER_PICT_OP_OVER, pict, color, 3, rects); if (!s_effectFrameCircle) { // create the circle const int diameter = roundness * 2; xcb_pixmap_t pix = xcb_generate_id(connection()); xcb_create_pixmap(connection(), 32, pix, rootWindow(), diameter, diameter); s_effectFrameCircle = new XRenderPicture(pix, 32); xcb_free_pixmap(connection(), pix); // clear it with transparent xcb_rectangle_t xrect = {0, 0, diameter, diameter}; xcb_render_color_t tranparent = {0, 0, 0, 0}; xcb_render_fill_rectangles(connection(), XCB_RENDER_PICT_OP_SRC, *s_effectFrameCircle, tranparent, 1, &xrect); static const int num_segments = 80; static const qreal theta = 2 * M_PI / qreal(num_segments); static const qreal c = qCos(theta); //precalculate the sine and cosine static const qreal s = qSin(theta); qreal t; qreal x = roundness;//we start at angle = 0 qreal y = 0; QVector points; xcb_render_pointfix_t point; point.x = DOUBLE_TO_FIXED(roundness); point.y = DOUBLE_TO_FIXED(roundness); points << point; for (int ii = 0; ii <= num_segments; ++ii) { point.x = DOUBLE_TO_FIXED(x + roundness); point.y = DOUBLE_TO_FIXED(y + roundness); points << point; //apply the rotation matrix t = x; x = c * x - s * y; y = s * t + c * y; } XRenderPicture fill = xRenderFill(Qt::black); xcb_render_tri_fan(connection(), XCB_RENDER_PICT_OP_OVER, fill, *s_effectFrameCircle, 0, 0, 0, points.count(), points.constData()); } // TODO: merge alpha mask with SceneXrender::Window::alphaMask // alpha mask xcb_pixmap_t pix = xcb_generate_id(connection()); xcb_create_pixmap(connection(), 8, pix, rootWindow(), 1, 1); XRenderPicture alphaMask(pix, 8); xcb_free_pixmap(connection(), pix); const uint32_t values[] = {true}; xcb_render_change_picture(connection(), alphaMask, XCB_RENDER_CP_REPEAT, values); color.alpha = int(opacity * 0xffff); xcb_rectangle_t xrect = {0, 0, 1, 1}; xcb_render_fill_rectangles(connection(), XCB_RENDER_PICT_OP_SRC, alphaMask, color, 1, &xrect); // TODO: replace by lambda #define RENDER_CIRCLE(srcX, srcY, destX, destY) \ xcb_render_composite(connection(), XCB_RENDER_PICT_OP_OVER, *s_effectFrameCircle, alphaMask, \ pict, srcX, srcY, 0, 0, destX, destY, roundness, roundness) RENDER_CIRCLE(0, 0, area.left(), area.top()); RENDER_CIRCLE(0, roundness, area.left(), area.top() + area.height() - roundness); RENDER_CIRCLE(roundness, 0, area.left() + area.width() - roundness, area.top()); RENDER_CIRCLE(roundness, roundness, area.left() + area.width() - roundness, area.top() + area.height() - roundness); #undef RENDER_CIRCLE } void SceneXrender::EffectFrame::updatePicture() { delete m_picture; m_picture = nullptr; if (m_effectFrame->style() == EffectFrameStyled) { const QPixmap pix = m_effectFrame->frame().framePixmap(); if (!pix.isNull()) m_picture = new XRenderPicture(pix.toImage()); } } void SceneXrender::EffectFrame::updateTextPicture() { // Mostly copied from SceneOpenGL::EffectFrame::updateTextTexture() above delete m_textPicture; m_textPicture = nullptr; if (m_effectFrame->text().isEmpty()) { return; } // Determine position on texture to paint text QRect rect(QPoint(0, 0), m_effectFrame->geometry().size()); if (!m_effectFrame->icon().isNull() && !m_effectFrame->iconSize().isEmpty()) { rect.setLeft(m_effectFrame->iconSize().width()); } // If static size elide text as required QString text = m_effectFrame->text(); if (m_effectFrame->isStatic()) { QFontMetrics metrics(m_effectFrame->text()); text = metrics.elidedText(text, Qt::ElideRight, rect.width()); } QPixmap pixmap(m_effectFrame->geometry().size()); pixmap.fill(Qt::transparent); QPainter p(&pixmap); p.setFont(m_effectFrame->font()); if (m_effectFrame->style() == EffectFrameStyled) { p.setPen(m_effectFrame->styledTextColor()); } else { // TODO: What about no frame? Custom color setting required p.setPen(Qt::white); } p.drawText(rect, m_effectFrame->alignment(), text); p.end(); m_textPicture = new XRenderPicture(pixmap.toImage()); } SceneXRenderShadow::SceneXRenderShadow(Toplevel *toplevel) :Shadow(toplevel) { for (int i=0; iclient(), static_cast(&AbstractClient::addRepaint)); for (int i = 0; i < int(DecorationPart::Count); ++i) { m_pixmaps[i] = XCB_PIXMAP_NONE; m_pictures[i] = nullptr; } } SceneXRenderDecorationRenderer::~SceneXRenderDecorationRenderer() { for (int i = 0; i < int(DecorationPart::Count); ++i) { if (m_pixmaps[i] != XCB_PIXMAP_NONE) { xcb_free_pixmap(connection(), m_pixmaps[i]); } delete m_pictures[i]; } if (m_gc != 0) { xcb_free_gc(connection(), m_gc); } } void SceneXRenderDecorationRenderer::render() { QRegion scheduled = getScheduled(); if (scheduled.isEmpty()) { return; } if (areImageSizesDirty()) { resizePixmaps(); resetImageSizesDirty(); scheduled = client()->client()->decorationRect(); } const QRect top(QPoint(0, 0), m_sizes[int(DecorationPart::Top)]); const QRect left(QPoint(0, top.height()), m_sizes[int(DecorationPart::Left)]); const QRect right(QPoint(top.width() - m_sizes[int(DecorationPart::Right)].width(), top.height()), m_sizes[int(DecorationPart::Right)]); const QRect bottom(QPoint(0, left.y() + left.height()), m_sizes[int(DecorationPart::Bottom)]); xcb_connection_t *c = connection(); if (m_gc == 0) { m_gc = xcb_generate_id(connection()); xcb_create_gc(c, m_gc, m_pixmaps[int(DecorationPart::Top)], 0, nullptr); } auto renderPart = [this, c](const QRect &geo, const QPoint &offset, int index) { if (!geo.isValid()) { return; } QImage image = renderToImage(geo); Q_ASSERT(image.devicePixelRatio() == 1); xcb_put_image(c, XCB_IMAGE_FORMAT_Z_PIXMAP, m_pixmaps[index], m_gc, image.width(), image.height(), geo.x() - offset.x(), geo.y() - offset.y(), 0, 32, image.sizeInBytes(), image.constBits()); }; const QRect geometry = scheduled.boundingRect(); renderPart(left.intersected(geometry), left.topLeft(), int(DecorationPart::Left)); renderPart(top.intersected(geometry), top.topLeft(), int(DecorationPart::Top)); renderPart(right.intersected(geometry), right.topLeft(), int(DecorationPart::Right)); renderPart(bottom.intersected(geometry), bottom.topLeft(), int(DecorationPart::Bottom)); xcb_flush(c); } void SceneXRenderDecorationRenderer::resizePixmaps() { QRect left, top, right, bottom; client()->client()->layoutDecorationRects(left, top, right, bottom); xcb_connection_t *c = connection(); auto checkAndCreate = [this, c](int border, const QRect &rect) { const QSize size = rect.size(); if (m_sizes[border] != size) { m_sizes[border] = size; if (m_pixmaps[border] != XCB_PIXMAP_NONE) { xcb_free_pixmap(c, m_pixmaps[border]); } delete m_pictures[border]; if (!size.isEmpty()) { m_pixmaps[border] = xcb_generate_id(connection()); xcb_create_pixmap(connection(), 32, m_pixmaps[border], rootWindow(), size.width(), size.height()); m_pictures[border] = new XRenderPicture(m_pixmaps[border], 32); } else { m_pixmaps[border] = XCB_PIXMAP_NONE; m_pictures[border] = nullptr; } } if (!m_pictures[border]) { return; } // fill transparent xcb_rectangle_t r = {0, 0, uint16_t(size.width()), uint16_t(size.height())}; xcb_render_fill_rectangles(connection(), XCB_RENDER_PICT_OP_SRC, *m_pictures[border], preMultiply(Qt::transparent), 1, &r); }; checkAndCreate(int(DecorationPart::Left), left); checkAndCreate(int(DecorationPart::Top), top); checkAndCreate(int(DecorationPart::Right), right); checkAndCreate(int(DecorationPart::Bottom), bottom); } xcb_render_picture_t SceneXRenderDecorationRenderer::picture(SceneXRenderDecorationRenderer::DecorationPart part) const { Q_ASSERT(part != DecorationPart::Count); XRenderPicture *picture = m_pictures[int(part)]; if (!picture) { return XCB_RENDER_PICTURE_NONE; } return *picture; } void SceneXRenderDecorationRenderer::reparent(Deleted *deleted) { render(); Renderer::reparent(deleted); } #undef DOUBLE_TO_FIXED #undef FIXED_TO_DOUBLE XRenderFactory::XRenderFactory(QObject *parent) : SceneFactory(parent) { } XRenderFactory::~XRenderFactory() = default; Scene *XRenderFactory::create(QObject *parent) const { auto s = SceneXrender::createScene(parent); if (s && s->initFailed()) { delete s; s = nullptr; } return s; } } // namespace #endif void KWin::SceneXrender::paintCursor() { } void KWin::SceneXrender::paintEffectQuickView(KWin::EffectQuickView *w) { const QImage buffer = w->bufferAsImage(); if (buffer.isNull()) { return; } XRenderPicture picture(buffer); xcb_render_composite(connection(), XCB_RENDER_PICT_OP_OVER, picture, XCB_RENDER_PICTURE_NONE, effects->xrenderBufferPicture(), 0, 0, 0, 0, w->geometry().x(), w->geometry().y(), w->geometry().width(), w->geometry().height()); }