7a3722b4f5
Summary: Switch to Q_ASSERT in order to make code a bit more consistent. We have places where both assert and Q_ASSERT are used next to each other. Also, distributions like Ubuntu don't strip away assert(), let's hope that things are a bit different with Q_ASSERT. Test Plan: Compiles. Reviewers: #kwin, davidedmundson Reviewed By: #kwin, davidedmundson Subscribers: romangg, davidedmundson, kwin Tags: #kwin Differential Revision: https://phabricator.kde.org/D23605
1157 lines
40 KiB
C++
1157 lines
40 KiB
C++
/********************************************************************
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KWin - the KDE window manager
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This file is part of the KDE project.
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Copyright (C) 2006 Lubos Lunak <l.lunak@kde.org>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*********************************************************************/
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/*
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The base class for compositing, implementing shared functionality
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between the OpenGL and XRender backends.
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Design:
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When compositing is turned on, XComposite extension is used to redirect
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drawing of windows to pixmaps and XDamage extension is used to get informed
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about damage (changes) to window contents. This code is mostly in composite.cpp .
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Compositor::performCompositing() starts one painting pass. Painting is done
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by painting the screen, which in turn paints every window. Painting can be affected
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using effects, which are chained. E.g. painting a screen means that actually
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paintScreen() of the first effect is called, which possibly does modifications
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and calls next effect's paintScreen() and so on, until Scene::finalPaintScreen()
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is called.
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There are 3 phases of every paint (not necessarily done together):
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The pre-paint phase, the paint phase and the post-paint phase.
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The pre-paint phase is used to find out about how the painting will be actually
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done (i.e. what the effects will do). For example when only a part of the screen
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needs to be updated and no effect will do any transformation it is possible to use
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an optimized paint function. How the painting will be done is controlled
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by the mask argument, see PAINT_WINDOW_* and PAINT_SCREEN_* flags in scene.h .
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For example an effect that decides to paint a normal windows as translucent
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will need to modify the mask in its prePaintWindow() to include
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the PAINT_WINDOW_TRANSLUCENT flag. The paintWindow() function will then get
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the mask with this flag turned on and will also paint using transparency.
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The paint pass does the actual painting, based on the information collected
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using the pre-paint pass. After running through the effects' paintScreen()
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either paintGenericScreen() or optimized paintSimpleScreen() are called.
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Those call paintWindow() on windows (not necessarily all), possibly using
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clipping to optimize performance and calling paintWindow() first with only
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PAINT_WINDOW_OPAQUE to paint the opaque parts and then later
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with PAINT_WINDOW_TRANSLUCENT to paint the transparent parts. Function
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paintWindow() again goes through effects' paintWindow() until
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finalPaintWindow() is called, which calls the window's performPaint() to
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do the actual painting.
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The post-paint can be used for cleanups and is also used for scheduling
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repaints during the next painting pass for animations. Effects wanting to
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repaint certain parts can manually damage them during post-paint and repaint
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of these parts will be done during the next paint pass.
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*/
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#include "scene.h"
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#include <QQuickWindow>
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#include <QVector2D>
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#include "client.h"
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#include "deleted.h"
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#include "effects.h"
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#include "overlaywindow.h"
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#include "screens.h"
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#include "shadow.h"
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#include "wayland_server.h"
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#include "thumbnailitem.h"
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#include <KWayland/Server/buffer_interface.h>
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#include <KWayland/Server/subcompositor_interface.h>
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#include <KWayland/Server/surface_interface.h>
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namespace KWin
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{
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//****************************************
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// Scene
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//****************************************
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Scene::Scene(QObject *parent)
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: QObject(parent)
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{
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last_time.invalidate(); // Initialize the timer
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}
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Scene::~Scene()
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{
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Q_ASSERT(m_windows.isEmpty());
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}
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// returns mask and possibly modified region
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void Scene::paintScreen(int* mask, const QRegion &damage, const QRegion &repaint,
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QRegion *updateRegion, QRegion *validRegion, const QMatrix4x4 &projection, const QRect &outputGeometry)
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{
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const QSize &screenSize = screens()->size();
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const QRegion displayRegion(0, 0, screenSize.width(), screenSize.height());
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*mask = (damage == displayRegion) ? 0 : PAINT_SCREEN_REGION;
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updateTimeDiff();
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// preparation step
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static_cast<EffectsHandlerImpl*>(effects)->startPaint();
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QRegion region = damage;
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ScreenPrePaintData pdata;
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pdata.mask = *mask;
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pdata.paint = region;
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effects->prePaintScreen(pdata, time_diff);
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*mask = pdata.mask;
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region = pdata.paint;
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if (*mask & (PAINT_SCREEN_TRANSFORMED | PAINT_SCREEN_WITH_TRANSFORMED_WINDOWS)) {
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// Region painting is not possible with transformations,
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// because screen damage doesn't match transformed positions.
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*mask &= ~PAINT_SCREEN_REGION;
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region = infiniteRegion();
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} else if (*mask & PAINT_SCREEN_REGION) {
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// make sure not to go outside visible screen
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region &= displayRegion;
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} else {
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// whole screen, not transformed, force region to be full
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region = displayRegion;
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}
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painted_region = region;
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repaint_region = repaint;
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if (*mask & PAINT_SCREEN_BACKGROUND_FIRST) {
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paintBackground(region);
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}
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ScreenPaintData data(projection, outputGeometry);
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effects->paintScreen(*mask, region, data);
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foreach (Window *w, stacking_order) {
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effects->postPaintWindow(effectWindow(w));
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}
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effects->postPaintScreen();
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// make sure not to go outside of the screen area
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*updateRegion = damaged_region;
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*validRegion = (region | painted_region) & displayRegion;
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repaint_region = QRegion();
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damaged_region = QRegion();
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// make sure all clipping is restored
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Q_ASSERT(!PaintClipper::clip());
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}
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// Compute time since the last painting pass.
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void Scene::updateTimeDiff()
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{
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if (!last_time.isValid()) {
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// Painting has been idle (optimized out) for some time,
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// which means time_diff would be huge and would break animations.
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// Simply set it to one (zero would mean no change at all and could
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// cause problems).
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time_diff = 1;
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last_time.start();
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} else
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time_diff = last_time.restart();
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if (time_diff < 0) // check time rollback
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time_diff = 1;
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}
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// Painting pass is optimized away.
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void Scene::idle()
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{
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// Don't break time since last paint for the next pass.
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last_time.invalidate();
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}
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// the function that'll be eventually called by paintScreen() above
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void Scene::finalPaintScreen(int mask, QRegion region, ScreenPaintData& data)
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{
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if (mask & (PAINT_SCREEN_TRANSFORMED | PAINT_SCREEN_WITH_TRANSFORMED_WINDOWS))
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paintGenericScreen(mask, data);
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else
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paintSimpleScreen(mask, region);
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}
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// The generic painting code that can handle even transformations.
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// It simply paints bottom-to-top.
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void Scene::paintGenericScreen(int orig_mask, ScreenPaintData)
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{
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if (!(orig_mask & PAINT_SCREEN_BACKGROUND_FIRST)) {
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paintBackground(infiniteRegion());
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}
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QVector<Phase2Data> phase2;
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phase2.reserve(stacking_order.size());
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foreach (Window * w, stacking_order) { // bottom to top
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Toplevel* topw = w->window();
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// Reset the repaint_region.
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// This has to be done here because many effects schedule a repaint for
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// the next frame within Effects::prePaintWindow.
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topw->resetRepaints();
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WindowPrePaintData data;
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data.mask = orig_mask | (w->isOpaque() ? PAINT_WINDOW_OPAQUE : PAINT_WINDOW_TRANSLUCENT);
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w->resetPaintingEnabled();
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data.paint = infiniteRegion(); // no clipping, so doesn't really matter
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data.clip = QRegion();
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data.quads = w->buildQuads();
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// preparation step
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effects->prePaintWindow(effectWindow(w), data, time_diff);
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#if !defined(QT_NO_DEBUG)
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if (data.quads.isTransformed()) {
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qFatal("Pre-paint calls are not allowed to transform quads!");
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}
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#endif
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if (!w->isPaintingEnabled()) {
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continue;
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}
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phase2.append({w, infiniteRegion(), data.clip, data.mask, data.quads});
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}
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foreach (const Phase2Data & d, phase2) {
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paintWindow(d.window, d.mask, d.region, d.quads);
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}
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const QSize &screenSize = screens()->size();
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damaged_region = QRegion(0, 0, screenSize.width(), screenSize.height());
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}
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// The optimized case without any transformations at all.
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// It can paint only the requested region and can use clipping
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// to reduce painting and improve performance.
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void Scene::paintSimpleScreen(int orig_mask, QRegion region)
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{
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Q_ASSERT((orig_mask & (PAINT_SCREEN_TRANSFORMED
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| PAINT_SCREEN_WITH_TRANSFORMED_WINDOWS)) == 0);
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QVector<Phase2Data> phase2data;
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phase2data.reserve(stacking_order.size());
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QRegion dirtyArea = region;
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bool opaqueFullscreen(false);
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for (int i = 0; // do prePaintWindow bottom to top
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i < stacking_order.count();
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++i) {
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Window* w = stacking_order[ i ];
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Toplevel* topw = w->window();
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WindowPrePaintData data;
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data.mask = orig_mask | (w->isOpaque() ? PAINT_WINDOW_OPAQUE : PAINT_WINDOW_TRANSLUCENT);
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w->resetPaintingEnabled();
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data.paint = region;
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data.paint |= topw->repaints();
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// Reset the repaint_region.
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// This has to be done here because many effects schedule a repaint for
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// the next frame within Effects::prePaintWindow.
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topw->resetRepaints();
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// Clip out the decoration for opaque windows; the decoration is drawn in the second pass
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opaqueFullscreen = false; // TODO: do we care about unmanged windows here (maybe input windows?)
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if (w->isOpaque()) {
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AbstractClient *c = dynamic_cast<AbstractClient*>(topw);
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if (c) {
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opaqueFullscreen = c->isFullScreen();
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}
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Client *cc = dynamic_cast<Client*>(c);
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// the window is fully opaque
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if (cc && cc->decorationHasAlpha()) {
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// decoration uses alpha channel, so we may not exclude it in clipping
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data.clip = w->clientShape().translated(w->x(), w->y());
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} else {
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// decoration is fully opaque
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if (c && c->isShade()) {
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data.clip = QRegion();
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} else {
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data.clip = w->shape().translated(w->x(), w->y());
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}
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}
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} else if (topw->hasAlpha() && topw->opacity() == 1.0) {
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// the window is partially opaque
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data.clip = (w->clientShape() & topw->opaqueRegion().translated(topw->clientPos())).translated(w->x(), w->y());
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} else {
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data.clip = QRegion();
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}
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data.quads = w->buildQuads();
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// preparation step
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effects->prePaintWindow(effectWindow(w), data, time_diff);
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#if !defined(QT_NO_DEBUG)
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if (data.quads.isTransformed()) {
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qFatal("Pre-paint calls are not allowed to transform quads!");
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}
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#endif
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if (!w->isPaintingEnabled()) {
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continue;
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}
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dirtyArea |= data.paint;
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// Schedule the window for painting
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phase2data.append({w, data.paint, data.clip, data.mask, data.quads});
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}
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// Save the part of the repaint region that's exclusively rendered to
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// bring a reused back buffer up to date. Then union the dirty region
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// with the repaint region.
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const QRegion repaintClip = repaint_region - dirtyArea;
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dirtyArea |= repaint_region;
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const QSize &screenSize = screens()->size();
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const QRegion displayRegion(0, 0, screenSize.width(), screenSize.height());
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bool fullRepaint(dirtyArea == displayRegion); // spare some expensive region operations
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if (!fullRepaint) {
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extendPaintRegion(dirtyArea, opaqueFullscreen);
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fullRepaint = (dirtyArea == displayRegion);
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}
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QRegion allclips, upperTranslucentDamage;
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upperTranslucentDamage = repaint_region;
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// This is the occlusion culling pass
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for (int i = phase2data.count() - 1; i >= 0; --i) {
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Phase2Data *data = &phase2data[i];
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if (fullRepaint)
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data->region = displayRegion;
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else
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data->region |= upperTranslucentDamage;
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// subtract the parts which will possibly been drawn as part of
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// a higher opaque window
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data->region -= allclips;
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// Here we rely on WindowPrePaintData::setTranslucent() to remove
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// the clip if needed.
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if (!data->clip.isEmpty() && !(data->mask & PAINT_WINDOW_TRANSLUCENT)) {
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// clip away the opaque regions for all windows below this one
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allclips |= data->clip;
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// extend the translucent damage for windows below this by remaining (translucent) regions
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if (!fullRepaint)
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upperTranslucentDamage |= data->region - data->clip;
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} else if (!fullRepaint) {
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upperTranslucentDamage |= data->region;
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}
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}
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QRegion paintedArea;
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// Fill any areas of the root window not covered by opaque windows
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if (!(orig_mask & PAINT_SCREEN_BACKGROUND_FIRST)) {
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paintedArea = dirtyArea - allclips;
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paintBackground(paintedArea);
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}
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// Now walk the list bottom to top and draw the windows.
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for (int i = 0; i < phase2data.count(); ++i) {
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Phase2Data *data = &phase2data[i];
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// add all regions which have been drawn so far
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paintedArea |= data->region;
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data->region = paintedArea;
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paintWindow(data->window, data->mask, data->region, data->quads);
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}
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if (fullRepaint) {
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painted_region = displayRegion;
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damaged_region = displayRegion;
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} else {
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painted_region |= paintedArea;
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// Clip the repainted region from the damaged region.
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// It's important that we don't add the union of the damaged region
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// and the repainted region to the damage history. Otherwise the
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// repaint region will grow with every frame until it eventually
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// covers the whole back buffer, at which point we're always doing
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// full repaints.
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damaged_region = paintedArea - repaintClip;
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}
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}
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void Scene::addToplevel(Toplevel *c)
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{
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Q_ASSERT(!m_windows.contains(c));
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Scene::Window *w = createWindow(c);
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m_windows[ c ] = w;
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connect(c, SIGNAL(geometryShapeChanged(KWin::Toplevel*,QRect)), SLOT(windowGeometryShapeChanged(KWin::Toplevel*)));
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connect(c, SIGNAL(windowClosed(KWin::Toplevel*,KWin::Deleted*)), SLOT(windowClosed(KWin::Toplevel*,KWin::Deleted*)));
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//A change of scale won't affect the geometry in compositor co-ordinates, but will affect the window quads.
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if (c->surface()) {
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connect(c->surface(), &KWayland::Server::SurfaceInterface::scaleChanged, this, std::bind(&Scene::windowGeometryShapeChanged, this, c));
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}
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connect(c, &Toplevel::screenScaleChanged, std::bind(&Scene::windowGeometryShapeChanged, this, c));
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c->effectWindow()->setSceneWindow(w);
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c->getShadow();
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w->updateShadow(c->shadow());
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connect(c, &Toplevel::shadowChanged, this,
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[w] {
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w->invalidateQuadsCache();
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}
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);
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}
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void Scene::removeToplevel(Toplevel *toplevel)
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{
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Q_ASSERT(m_windows.contains(toplevel));
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delete m_windows.take(toplevel);
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toplevel->effectWindow()->setSceneWindow(nullptr);
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}
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void Scene::windowClosed(Toplevel *toplevel, Deleted *deleted)
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{
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if (!deleted) {
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removeToplevel(toplevel);
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return;
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}
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Q_ASSERT(m_windows.contains(toplevel));
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Window *window = m_windows.take(toplevel);
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window->updateToplevel(deleted);
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if (window->shadow()) {
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window->shadow()->setToplevel(deleted);
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}
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m_windows[deleted] = window;
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}
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void Scene::windowGeometryShapeChanged(Toplevel *c)
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{
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if (!m_windows.contains(c)) // this is ok, shape is not valid by default
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return;
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Window *w = m_windows[ c ];
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w->discardShape();
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}
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void Scene::createStackingOrder(ToplevelList toplevels)
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{
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// TODO: cache the stacking_order in case it has not changed
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foreach (Toplevel *c, toplevels) {
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Q_ASSERT(m_windows.contains(c));
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stacking_order.append(m_windows[ c ]);
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}
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}
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void Scene::clearStackingOrder()
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{
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stacking_order.clear();
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}
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static Scene::Window *s_recursionCheck = NULL;
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void Scene::paintWindow(Window* w, int mask, QRegion region, WindowQuadList quads)
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{
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// no painting outside visible screen (and no transformations)
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const QSize &screenSize = screens()->size();
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region &= QRect(0, 0, screenSize.width(), screenSize.height());
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if (region.isEmpty()) // completely clipped
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return;
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if (w->window()->isDeleted() && w->window()->skipsCloseAnimation()) {
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// should not get painted
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return;
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}
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if (s_recursionCheck == w) {
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return;
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}
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WindowPaintData data(w->window()->effectWindow(), screenProjectionMatrix());
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data.quads = quads;
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effects->paintWindow(effectWindow(w), mask, region, data);
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// paint thumbnails on top of window
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paintWindowThumbnails(w, region, data.opacity(), data.brightness(), data.saturation());
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// and desktop thumbnails
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paintDesktopThumbnails(w);
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}
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static void adjustClipRegion(AbstractThumbnailItem *item, QRegion &clippingRegion)
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{
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if (item->clip() && item->clipTo()) {
|
|
// the x/y positions of the parent item are not correct. The margins are added, though the size seems fine
|
|
// that's why we have to get the offset by inspecting the anchors properties
|
|
QQuickItem *parentItem = item->clipTo();
|
|
QPointF offset;
|
|
QVariant anchors = parentItem->property("anchors");
|
|
if (anchors.isValid()) {
|
|
if (QObject *anchorsObject = anchors.value<QObject*>()) {
|
|
offset.setX(anchorsObject->property("leftMargin").toReal());
|
|
offset.setY(anchorsObject->property("topMargin").toReal());
|
|
}
|
|
}
|
|
QRectF rect = QRectF(parentItem->position() - offset, QSizeF(parentItem->width(), parentItem->height()));
|
|
if (QQuickItem *p = parentItem->parentItem()) {
|
|
rect = p->mapRectToScene(rect);
|
|
}
|
|
clippingRegion &= rect.adjusted(0,0,-1,-1).translated(item->window()->position()).toRect();
|
|
}
|
|
}
|
|
|
|
void Scene::paintWindowThumbnails(Scene::Window *w, QRegion region, qreal opacity, qreal brightness, qreal saturation)
|
|
{
|
|
EffectWindowImpl *wImpl = static_cast<EffectWindowImpl*>(effectWindow(w));
|
|
for (QHash<WindowThumbnailItem*, QPointer<EffectWindowImpl> >::const_iterator it = wImpl->thumbnails().constBegin();
|
|
it != wImpl->thumbnails().constEnd();
|
|
++it) {
|
|
if (it.value().isNull()) {
|
|
continue;
|
|
}
|
|
WindowThumbnailItem *item = it.key();
|
|
if (!item->isVisible()) {
|
|
continue;
|
|
}
|
|
EffectWindowImpl *thumb = it.value().data();
|
|
WindowPaintData thumbData(thumb, screenProjectionMatrix());
|
|
thumbData.setOpacity(opacity);
|
|
thumbData.setBrightness(brightness * item->brightness());
|
|
thumbData.setSaturation(saturation * item->saturation());
|
|
|
|
const QRect visualThumbRect(thumb->expandedGeometry());
|
|
|
|
QSizeF size = QSizeF(visualThumbRect.size());
|
|
size.scale(QSizeF(item->width(), item->height()), Qt::KeepAspectRatio);
|
|
if (size.width() > visualThumbRect.width() || size.height() > visualThumbRect.height()) {
|
|
size = QSizeF(visualThumbRect.size());
|
|
}
|
|
thumbData.setXScale(size.width() / static_cast<qreal>(visualThumbRect.width()));
|
|
thumbData.setYScale(size.height() / static_cast<qreal>(visualThumbRect.height()));
|
|
|
|
if (!item->window()) {
|
|
continue;
|
|
}
|
|
const QPointF point = item->mapToScene(item->position());
|
|
qreal x = point.x() + w->x() + (item->width() - size.width())/2;
|
|
qreal y = point.y() + w->y() + (item->height() - size.height()) / 2;
|
|
x -= thumb->x();
|
|
y -= thumb->y();
|
|
// compensate shadow topleft padding
|
|
x += (thumb->x()-visualThumbRect.x())*thumbData.xScale();
|
|
y += (thumb->y()-visualThumbRect.y())*thumbData.yScale();
|
|
thumbData.setXTranslation(x);
|
|
thumbData.setYTranslation(y);
|
|
int thumbMask = PAINT_WINDOW_TRANSFORMED | PAINT_WINDOW_LANCZOS;
|
|
if (thumbData.opacity() == 1.0) {
|
|
thumbMask |= PAINT_WINDOW_OPAQUE;
|
|
} else {
|
|
thumbMask |= PAINT_WINDOW_TRANSLUCENT;
|
|
}
|
|
QRegion clippingRegion = region;
|
|
clippingRegion &= QRegion(wImpl->x(), wImpl->y(), wImpl->width(), wImpl->height());
|
|
adjustClipRegion(item, clippingRegion);
|
|
effects->drawWindow(thumb, thumbMask, clippingRegion, thumbData);
|
|
}
|
|
}
|
|
|
|
void Scene::paintDesktopThumbnails(Scene::Window *w)
|
|
{
|
|
EffectWindowImpl *wImpl = static_cast<EffectWindowImpl*>(effectWindow(w));
|
|
for (QList<DesktopThumbnailItem*>::const_iterator it = wImpl->desktopThumbnails().constBegin();
|
|
it != wImpl->desktopThumbnails().constEnd();
|
|
++it) {
|
|
DesktopThumbnailItem *item = *it;
|
|
if (!item->isVisible()) {
|
|
continue;
|
|
}
|
|
if (!item->window()) {
|
|
continue;
|
|
}
|
|
s_recursionCheck = w;
|
|
|
|
ScreenPaintData data;
|
|
const QSize &screenSize = screens()->size();
|
|
QSize size = screenSize;
|
|
|
|
size.scale(item->width(), item->height(), Qt::KeepAspectRatio);
|
|
data *= QVector2D(size.width() / double(screenSize.width()),
|
|
size.height() / double(screenSize.height()));
|
|
const QPointF point = item->mapToScene(item->position());
|
|
const qreal x = point.x() + w->x() + (item->width() - size.width())/2;
|
|
const qreal y = point.y() + w->y() + (item->height() - size.height()) / 2;
|
|
const QRect region = QRect(x, y, item->width(), item->height());
|
|
QRegion clippingRegion = region;
|
|
clippingRegion &= QRegion(wImpl->x(), wImpl->y(), wImpl->width(), wImpl->height());
|
|
adjustClipRegion(item, clippingRegion);
|
|
data += QPointF(x, y);
|
|
const int desktopMask = PAINT_SCREEN_TRANSFORMED | PAINT_WINDOW_TRANSFORMED | PAINT_SCREEN_BACKGROUND_FIRST;
|
|
paintDesktop(item->desktop(), desktopMask, clippingRegion, data);
|
|
s_recursionCheck = NULL;
|
|
}
|
|
}
|
|
|
|
void Scene::paintDesktop(int desktop, int mask, const QRegion ®ion, ScreenPaintData &data)
|
|
{
|
|
static_cast<EffectsHandlerImpl*>(effects)->paintDesktop(desktop, mask, region, data);
|
|
}
|
|
|
|
// the function that'll be eventually called by paintWindow() above
|
|
void Scene::finalPaintWindow(EffectWindowImpl* w, int mask, QRegion region, WindowPaintData& data)
|
|
{
|
|
effects->drawWindow(w, mask, region, data);
|
|
}
|
|
|
|
// will be eventually called from drawWindow()
|
|
void Scene::finalDrawWindow(EffectWindowImpl* w, int mask, QRegion region, WindowPaintData& data)
|
|
{
|
|
if (waylandServer() && waylandServer()->isScreenLocked() && !w->window()->isLockScreen() && !w->window()->isInputMethod()) {
|
|
return;
|
|
}
|
|
w->sceneWindow()->performPaint(mask, region, data);
|
|
}
|
|
|
|
void Scene::extendPaintRegion(QRegion ®ion, bool opaqueFullscreen)
|
|
{
|
|
Q_UNUSED(region);
|
|
Q_UNUSED(opaqueFullscreen);
|
|
}
|
|
|
|
bool Scene::blocksForRetrace() const
|
|
{
|
|
return false;
|
|
}
|
|
|
|
bool Scene::syncsToVBlank() const
|
|
{
|
|
return false;
|
|
}
|
|
|
|
void Scene::screenGeometryChanged(const QSize &size)
|
|
{
|
|
if (!overlayWindow()) {
|
|
return;
|
|
}
|
|
overlayWindow()->resize(size);
|
|
}
|
|
|
|
bool Scene::makeOpenGLContextCurrent()
|
|
{
|
|
return false;
|
|
}
|
|
|
|
void Scene::doneOpenGLContextCurrent()
|
|
{
|
|
}
|
|
|
|
void Scene::triggerFence()
|
|
{
|
|
}
|
|
|
|
QMatrix4x4 Scene::screenProjectionMatrix() const
|
|
{
|
|
return QMatrix4x4();
|
|
}
|
|
|
|
xcb_render_picture_t Scene::xrenderBufferPicture() const
|
|
{
|
|
return XCB_RENDER_PICTURE_NONE;
|
|
}
|
|
|
|
QPainter *Scene::scenePainter() const
|
|
{
|
|
return nullptr;
|
|
}
|
|
|
|
QImage *Scene::qpainterRenderBuffer() const
|
|
{
|
|
return nullptr;
|
|
}
|
|
|
|
QVector<QByteArray> Scene::openGLPlatformInterfaceExtensions() const
|
|
{
|
|
return QVector<QByteArray>{};
|
|
}
|
|
|
|
//****************************************
|
|
// Scene::Window
|
|
//****************************************
|
|
|
|
Scene::Window::Window(Toplevel * c)
|
|
: toplevel(c)
|
|
, filter(ImageFilterFast)
|
|
, m_shadow(NULL)
|
|
, m_currentPixmap()
|
|
, m_previousPixmap()
|
|
, m_referencePixmapCounter(0)
|
|
, disable_painting(0)
|
|
, shape_valid(false)
|
|
, cached_quad_list(NULL)
|
|
{
|
|
}
|
|
|
|
Scene::Window::~Window()
|
|
{
|
|
delete m_shadow;
|
|
}
|
|
|
|
void Scene::Window::referencePreviousPixmap()
|
|
{
|
|
if (!m_previousPixmap.isNull() && m_previousPixmap->isDiscarded()) {
|
|
m_referencePixmapCounter++;
|
|
}
|
|
}
|
|
|
|
void Scene::Window::unreferencePreviousPixmap()
|
|
{
|
|
if (m_previousPixmap.isNull() || !m_previousPixmap->isDiscarded()) {
|
|
return;
|
|
}
|
|
m_referencePixmapCounter--;
|
|
if (m_referencePixmapCounter == 0) {
|
|
m_previousPixmap.reset();
|
|
}
|
|
}
|
|
|
|
void Scene::Window::pixmapDiscarded()
|
|
{
|
|
if (!m_currentPixmap.isNull()) {
|
|
if (m_currentPixmap->isValid()) {
|
|
m_previousPixmap.reset(m_currentPixmap.take());
|
|
m_previousPixmap->markAsDiscarded();
|
|
} else {
|
|
m_currentPixmap.reset();
|
|
}
|
|
}
|
|
}
|
|
|
|
void Scene::Window::discardShape()
|
|
{
|
|
// it is created on-demand and cached, simply
|
|
// reset the flag
|
|
shape_valid = false;
|
|
invalidateQuadsCache();
|
|
}
|
|
|
|
// Find out the shape of the window using the XShape extension
|
|
// or if shape is not set then simply it's the window geometry.
|
|
const QRegion &Scene::Window::shape() const
|
|
{
|
|
if (!shape_valid) {
|
|
if (toplevel->shape()) {
|
|
auto cookie = xcb_shape_get_rectangles_unchecked(connection(), toplevel->frameId(), XCB_SHAPE_SK_BOUNDING);
|
|
ScopedCPointer<xcb_shape_get_rectangles_reply_t> reply(xcb_shape_get_rectangles_reply(connection(), cookie, nullptr));
|
|
if (!reply.isNull()) {
|
|
shape_region = QRegion();
|
|
auto *rects = xcb_shape_get_rectangles_rectangles(reply.data());
|
|
for (int i = 0;
|
|
i < xcb_shape_get_rectangles_rectangles_length(reply.data());
|
|
++i)
|
|
shape_region += QRegion(rects[ i ].x, rects[ i ].y,
|
|
rects[ i ].width, rects[ i ].height);
|
|
// make sure the shape is sane (X is async, maybe even XShape is broken)
|
|
shape_region &= QRegion(0, 0, width(), height());
|
|
} else
|
|
shape_region = QRegion();
|
|
} else
|
|
shape_region = QRegion(0, 0, width(), height());
|
|
shape_valid = true;
|
|
}
|
|
return shape_region;
|
|
}
|
|
|
|
QRegion Scene::Window::clientShape() const
|
|
{
|
|
if (AbstractClient *c = dynamic_cast< AbstractClient * > (toplevel)) {
|
|
if (c->isShade())
|
|
return QRegion();
|
|
}
|
|
|
|
// TODO: cache
|
|
const QRegion r = shape() & QRect(toplevel->clientPos(), toplevel->clientSize());
|
|
return r.isEmpty() ? QRegion() : r;
|
|
}
|
|
|
|
bool Scene::Window::isVisible() const
|
|
{
|
|
if (toplevel->isDeleted())
|
|
return false;
|
|
if (!toplevel->isOnCurrentDesktop())
|
|
return false;
|
|
if (!toplevel->isOnCurrentActivity())
|
|
return false;
|
|
if (AbstractClient *c = dynamic_cast<AbstractClient*>(toplevel))
|
|
return c->isShown(true);
|
|
return true; // Unmanaged is always visible
|
|
}
|
|
|
|
bool Scene::Window::isOpaque() const
|
|
{
|
|
return toplevel->opacity() == 1.0 && !toplevel->hasAlpha();
|
|
}
|
|
|
|
bool Scene::Window::isPaintingEnabled() const
|
|
{
|
|
return !disable_painting;
|
|
}
|
|
|
|
void Scene::Window::resetPaintingEnabled()
|
|
{
|
|
disable_painting = 0;
|
|
if (toplevel->isDeleted())
|
|
disable_painting |= PAINT_DISABLED_BY_DELETE;
|
|
if (static_cast<EffectsHandlerImpl*>(effects)->isDesktopRendering()) {
|
|
if (!toplevel->isOnDesktop(static_cast<EffectsHandlerImpl*>(effects)->currentRenderedDesktop())) {
|
|
disable_painting |= PAINT_DISABLED_BY_DESKTOP;
|
|
}
|
|
} else {
|
|
if (!toplevel->isOnCurrentDesktop())
|
|
disable_painting |= PAINT_DISABLED_BY_DESKTOP;
|
|
}
|
|
if (!toplevel->isOnCurrentActivity())
|
|
disable_painting |= PAINT_DISABLED_BY_ACTIVITY;
|
|
if (AbstractClient *c = dynamic_cast<AbstractClient*>(toplevel)) {
|
|
if (c->isMinimized())
|
|
disable_painting |= PAINT_DISABLED_BY_MINIMIZE;
|
|
if (c->tabGroup() && c != c->tabGroup()->current())
|
|
disable_painting |= PAINT_DISABLED_BY_TAB_GROUP;
|
|
if (c->isHiddenInternal()) {
|
|
disable_painting |= PAINT_DISABLED;
|
|
}
|
|
}
|
|
}
|
|
|
|
void Scene::Window::enablePainting(int reason)
|
|
{
|
|
disable_painting &= ~reason;
|
|
}
|
|
|
|
void Scene::Window::disablePainting(int reason)
|
|
{
|
|
disable_painting |= reason;
|
|
}
|
|
|
|
WindowQuadList Scene::Window::buildQuads(bool force) const
|
|
{
|
|
if (cached_quad_list != NULL && !force)
|
|
return *cached_quad_list;
|
|
WindowQuadList ret;
|
|
qreal scale = 1.0;
|
|
if (toplevel->surface()) {
|
|
scale = toplevel->surface()->scale();
|
|
}
|
|
|
|
if (toplevel->clientPos() == QPoint(0, 0) && toplevel->clientSize() == toplevel->decorationRect().size())
|
|
ret = makeQuads(WindowQuadContents, shape(), QPoint(0,0), scale); // has no decoration
|
|
else {
|
|
AbstractClient *client = dynamic_cast<AbstractClient*>(toplevel);
|
|
QRegion contents = clientShape();
|
|
QRegion center = toplevel->transparentRect();
|
|
QRegion decoration = (client ? QRegion(client->decorationRect()) : shape()) - center;
|
|
qreal decorationScale = 1.0;
|
|
ret = makeQuads(WindowQuadContents, contents, toplevel->clientContentPos(), scale);
|
|
|
|
QRect rects[4];
|
|
bool isShadedClient = false;
|
|
|
|
if (client) {
|
|
client->layoutDecorationRects(rects[0], rects[1], rects[2], rects[3]);
|
|
decorationScale = client->screenScale();
|
|
isShadedClient = client->isShade() || center.isEmpty();
|
|
}
|
|
|
|
if (isShadedClient) {
|
|
const QRect bounding = rects[0] | rects[1] | rects[2] | rects[3];
|
|
ret += makeDecorationQuads(rects, bounding, decorationScale);
|
|
} else {
|
|
ret += makeDecorationQuads(rects, decoration, decorationScale);
|
|
}
|
|
|
|
}
|
|
if (m_shadow && toplevel->wantsShadowToBeRendered()) {
|
|
ret << m_shadow->shadowQuads();
|
|
}
|
|
effects->buildQuads(toplevel->effectWindow(), ret);
|
|
cached_quad_list.reset(new WindowQuadList(ret));
|
|
return ret;
|
|
}
|
|
|
|
WindowQuadList Scene::Window::makeDecorationQuads(const QRect *rects, const QRegion ®ion, qreal textureScale) const
|
|
{
|
|
WindowQuadList list;
|
|
|
|
const QPoint offsets[4] = {
|
|
QPoint(-rects[0].x() + rects[1].height() + rects[3].height() + 2, -rects[0].y()), // Left
|
|
QPoint(-rects[1].x(), -rects[1].y()), // Top
|
|
QPoint(-rects[2].x() + rects[1].height() + rects[3].height() + rects[0].width() + 3, -rects[2].y()), // Right
|
|
QPoint(-rects[3].x(), -rects[3].y() + rects[1].height() + 1) // Bottom
|
|
};
|
|
|
|
const Qt::Orientation orientations[4] = {
|
|
Qt::Vertical, // Left
|
|
Qt::Horizontal, // Top
|
|
Qt::Vertical, // Right
|
|
Qt::Horizontal, // Bottom
|
|
};
|
|
|
|
for (int i = 0; i < 4; i++) {
|
|
const QRegion intersectedRegion = (region & rects[i]);
|
|
for (const QRect &r : intersectedRegion) {
|
|
if (!r.isValid())
|
|
continue;
|
|
|
|
const bool swap = orientations[i] == Qt::Vertical;
|
|
|
|
const int x0 = r.x();
|
|
const int y0 = r.y();
|
|
const int x1 = r.x() + r.width();
|
|
const int y1 = r.y() + r.height();
|
|
|
|
const int u0 = (x0 + offsets[i].x()) * textureScale;
|
|
const int v0 = (y0 + offsets[i].y()) * textureScale;
|
|
const int u1 = (x1 + offsets[i].x()) * textureScale;
|
|
const int v1 = (y1 + offsets[i].y()) * textureScale;
|
|
|
|
WindowQuad quad(WindowQuadDecoration);
|
|
quad.setUVAxisSwapped(swap);
|
|
|
|
if (swap) {
|
|
quad[0] = WindowVertex(x0, y0, v0, u0); // Top-left
|
|
quad[1] = WindowVertex(x1, y0, v0, u1); // Top-right
|
|
quad[2] = WindowVertex(x1, y1, v1, u1); // Bottom-right
|
|
quad[3] = WindowVertex(x0, y1, v1, u0); // Bottom-left
|
|
} else {
|
|
quad[0] = WindowVertex(x0, y0, u0, v0); // Top-left
|
|
quad[1] = WindowVertex(x1, y0, u1, v0); // Top-right
|
|
quad[2] = WindowVertex(x1, y1, u1, v1); // Bottom-right
|
|
quad[3] = WindowVertex(x0, y1, u0, v1); // Bottom-left
|
|
}
|
|
|
|
list.append(quad);
|
|
}
|
|
}
|
|
|
|
return list;
|
|
}
|
|
|
|
void Scene::Window::invalidateQuadsCache()
|
|
{
|
|
cached_quad_list.reset();
|
|
}
|
|
|
|
WindowQuadList Scene::Window::makeQuads(WindowQuadType type, const QRegion& reg, const QPoint &textureOffset, qreal scale) const
|
|
{
|
|
WindowQuadList ret;
|
|
ret.reserve(reg.rectCount());
|
|
for (const QRect &r : reg) {
|
|
WindowQuad quad(type);
|
|
// TODO asi mam spatne pravy dolni roh - bud tady, nebo v jinych castech
|
|
quad[ 0 ] = WindowVertex(QPointF(r.x(), r.y()),
|
|
QPointF(r.x() + textureOffset.x(), r.y() + textureOffset.y()) * scale);
|
|
quad[ 1 ] = WindowVertex(QPointF(r.x() + r.width(), r.y()),
|
|
QPointF(r.x() + r.width() + textureOffset.x(), r.y() + textureOffset.y()) * scale);
|
|
quad[ 2 ] = WindowVertex(QPointF(r.x() + r.width(), r.y() + r.height()),
|
|
QPointF(r.x() + r.width() + textureOffset.x(), r.y() + r.height() + textureOffset.y()) * scale);
|
|
quad[ 3 ] = WindowVertex(QPointF(r.x(), r.y() + r.height()),
|
|
QPointF(r.x() + textureOffset.x(), r.y() + r.height() + textureOffset.y()) * scale);
|
|
|
|
ret.append(quad);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
void Scene::Window::updateShadow(Shadow* shadow)
|
|
{
|
|
if (m_shadow == shadow) {
|
|
return;
|
|
}
|
|
delete m_shadow;
|
|
m_shadow = shadow;
|
|
}
|
|
|
|
//****************************************
|
|
// WindowPixmap
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//****************************************
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WindowPixmap::WindowPixmap(Scene::Window *window)
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: m_window(window)
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, m_pixmap(XCB_PIXMAP_NONE)
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, m_discarded(false)
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{
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}
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WindowPixmap::WindowPixmap(const QPointer<KWayland::Server::SubSurfaceInterface> &subSurface, WindowPixmap *parent)
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: m_window(parent->m_window)
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, m_pixmap(XCB_PIXMAP_NONE)
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, m_discarded(false)
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, m_parent(parent)
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, m_subSurface(subSurface)
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{
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}
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WindowPixmap::~WindowPixmap()
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{
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if (m_pixmap != XCB_WINDOW_NONE) {
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xcb_free_pixmap(connection(), m_pixmap);
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}
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if (m_buffer) {
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using namespace KWayland::Server;
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QObject::disconnect(m_buffer.data(), &BufferInterface::aboutToBeDestroyed, m_buffer.data(), &BufferInterface::unref);
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m_buffer->unref();
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}
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}
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void WindowPixmap::create()
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{
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if (isValid() || toplevel()->isDeleted()) {
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return;
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}
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// always update from Buffer on Wayland, don't try using XPixmap
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if (kwinApp()->shouldUseWaylandForCompositing()) {
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// use Buffer
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updateBuffer();
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if ((m_buffer || !m_fbo.isNull()) && m_subSurface.isNull()) {
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m_window->unreferencePreviousPixmap();
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}
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return;
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}
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XServerGrabber grabber;
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xcb_pixmap_t pix = xcb_generate_id(connection());
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xcb_void_cookie_t namePixmapCookie = xcb_composite_name_window_pixmap_checked(connection(), toplevel()->frameId(), pix);
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Xcb::WindowAttributes windowAttributes(toplevel()->frameId());
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Xcb::WindowGeometry windowGeometry(toplevel()->frameId());
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if (xcb_generic_error_t *error = xcb_request_check(connection(), namePixmapCookie)) {
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qCDebug(KWIN_CORE) << "Creating window pixmap failed: " << error->error_code;
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free(error);
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return;
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}
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// check that the received pixmap is valid and actually matches what we
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// know about the window (i.e. size)
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if (!windowAttributes || windowAttributes->map_state != XCB_MAP_STATE_VIEWABLE) {
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qCDebug(KWIN_CORE) << "Creating window pixmap failed: " << this;
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xcb_free_pixmap(connection(), pix);
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return;
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}
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if (!windowGeometry ||
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windowGeometry->width != toplevel()->width() || windowGeometry->height != toplevel()->height()) {
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qCDebug(KWIN_CORE) << "Creating window pixmap failed: " << this;
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xcb_free_pixmap(connection(), pix);
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return;
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}
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m_pixmap = pix;
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m_pixmapSize = QSize(toplevel()->width(), toplevel()->height());
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m_contentsRect = QRect(toplevel()->clientPos(), toplevel()->clientSize());
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m_window->unreferencePreviousPixmap();
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}
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WindowPixmap *WindowPixmap::createChild(const QPointer<KWayland::Server::SubSurfaceInterface> &subSurface)
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{
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Q_UNUSED(subSurface)
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return nullptr;
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}
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bool WindowPixmap::isValid() const
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{
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if (!m_buffer.isNull() || !m_fbo.isNull()) {
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return true;
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}
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return m_pixmap != XCB_PIXMAP_NONE;
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}
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void WindowPixmap::updateBuffer()
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{
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using namespace KWayland::Server;
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if (SurfaceInterface *s = surface()) {
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QVector<WindowPixmap*> oldTree = m_children;
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QVector<WindowPixmap*> children;
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using namespace KWayland::Server;
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const auto subSurfaces = s->childSubSurfaces();
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for (const auto &subSurface : subSurfaces) {
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if (subSurface.isNull()) {
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continue;
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}
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auto it = std::find_if(oldTree.begin(), oldTree.end(), [subSurface] (WindowPixmap *p) { return p->m_subSurface == subSurface; });
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if (it != oldTree.end()) {
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children << *it;
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(*it)->updateBuffer();
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oldTree.erase(it);
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} else {
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WindowPixmap *p = createChild(subSurface);
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if (p) {
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p->create();
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children << p;
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}
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}
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}
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setChildren(children);
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qDeleteAll(oldTree);
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if (auto b = s->buffer()) {
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if (b == m_buffer) {
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// no change
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return;
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}
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if (m_buffer) {
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QObject::disconnect(m_buffer.data(), &BufferInterface::aboutToBeDestroyed, m_buffer.data(), &BufferInterface::unref);
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m_buffer->unref();
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}
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m_buffer = b;
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m_buffer->ref();
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QObject::connect(m_buffer.data(), &BufferInterface::aboutToBeDestroyed, m_buffer.data(), &BufferInterface::unref);
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} else if (m_subSurface) {
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if (m_buffer) {
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QObject::disconnect(m_buffer.data(), &BufferInterface::aboutToBeDestroyed, m_buffer.data(), &BufferInterface::unref);
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m_buffer->unref();
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m_buffer.clear();
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}
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} else {
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// might be an internal window
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const auto &fbo = toplevel()->internalFramebufferObject();
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if (!fbo.isNull()) {
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m_fbo = fbo;
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}
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}
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} else {
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if (m_buffer) {
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QObject::disconnect(m_buffer.data(), &BufferInterface::aboutToBeDestroyed, m_buffer.data(), &BufferInterface::unref);
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m_buffer->unref();
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m_buffer.clear();
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}
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}
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}
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KWayland::Server::SurfaceInterface *WindowPixmap::surface() const
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{
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if (!m_subSurface.isNull()) {
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return m_subSurface->surface().data();
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} else {
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return toplevel()->surface();
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}
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}
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//****************************************
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// Scene::EffectFrame
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//****************************************
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Scene::EffectFrame::EffectFrame(EffectFrameImpl* frame)
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: m_effectFrame(frame)
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{
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}
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Scene::EffectFrame::~EffectFrame()
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{
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}
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SceneFactory::SceneFactory(QObject *parent)
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: QObject(parent)
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{
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}
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SceneFactory::~SceneFactory()
|
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{
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}
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} // namespace
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