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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
// Qt-Security score:significant reason:default
#include "qsgsoftwarerenderloop_p.h"
#include "qsgsoftwarecontext_p.h"
#include <QtCore/QCoreApplication>
#include <private/qquickwindow_p.h>
#include <private/qquickitem_p.h>
#include <QElapsedTimer>
#include <private/qquickanimatorcontroller_p.h>
#include <private/qquickprofiler_p.h>
#include <private/qsgsoftwarerenderer_p.h>
#include <qpa/qplatformbackingstore.h>
#include <QtGui/QBackingStore>
#include <qtquick_tracepoints_p.h>
QT_BEGIN_NAMESPACE
// polish, animations, sync, render and swap in the render loop
Q_STATIC_LOGGING_CATEGORY(QSG_RASTER_LOG_TIME_RENDERLOOP, "qt.scenegraph.time.renderloop")
QSGSoftwareRenderLoop::QSGSoftwareRenderLoop()
{
sg = new QSGSoftwareContext();
rc = sg->createRenderContext();
}
QSGSoftwareRenderLoop::~QSGSoftwareRenderLoop()
{
delete rc;
delete sg;
}
void QSGSoftwareRenderLoop::show(QQuickWindow *window)
{
WindowData data;
data.updatePending = false;
data.grabOnly = false;
m_windows[window] = data;
if (m_backingStores[window] == nullptr) {
m_backingStores[window] = new QBackingStore(window);
}
maybeUpdate(window);
}
void QSGSoftwareRenderLoop::hide(QQuickWindow *window)
{
QQuickWindowPrivate *cd = QQuickWindowPrivate::get(window);
cd->fireAboutToStop();
}
void QSGSoftwareRenderLoop::windowDestroyed(QQuickWindow *window)
{
m_windows.remove(window);
delete m_backingStores[window];
m_backingStores.remove(window);
hide(window);
QQuickWindowPrivate *d = QQuickWindowPrivate::get(window);
d->cleanupNodesOnShutdown();
if (m_windows.size() == 0) {
rc->invalidate();
}
d->animationController.reset();
}
void QSGSoftwareRenderLoop::renderWindow(QQuickWindow *window, bool isNewExpose)
{
QQuickWindowPrivate *cd = QQuickWindowPrivate::get(window);
if (!m_windows.contains(window))
return;
WindowData &data = const_cast<WindowData &>(m_windows[window]);
//If were not in grabOnly mode, dont render a non-renderable window
if (!data.grabOnly && !cd->isRenderable())
return;
//Resize the backing store if necessary
if (m_backingStores[window]->size() != window->size()) {
m_backingStores[window]->resize(window->size());
}
// ### create QPainter and set up pointer to current window/painter
QSGSoftwareRenderContext *ctx = static_cast<QSGSoftwareRenderContext*>(cd->context);
ctx->initializeIfNeeded();
bool alsoSwap = data.updatePending;
data.updatePending = false;
if (!data.grabOnly) {
cd->deliveryAgentPrivate()->flushFrameSynchronousEvents(window);
// Event delivery/processing triggered the window to be deleted or stop rendering.
if (!m_windows.contains(window))
return;
}
Q_TRACE_SCOPE(QSG_renderWindow)
QElapsedTimer renderTimer;
qint64 renderTime = 0, syncTime = 0, polishTime = 0;
bool profileFrames = QSG_RASTER_LOG_TIME_RENDERLOOP().isDebugEnabled();
if (profileFrames)
renderTimer.start();
Q_QUICK_SG_PROFILE_START(QQuickProfiler::SceneGraphPolishFrame);
Q_TRACE(QSG_polishItems_entry);
cd->polishItems();
if (profileFrames)
polishTime = renderTimer.nsecsElapsed();
Q_TRACE(QSG_polishItems_exit);
Q_QUICK_SG_PROFILE_SWITCH(QQuickProfiler::SceneGraphPolishFrame,
QQuickProfiler::SceneGraphRenderLoopFrame,
QQuickProfiler::SceneGraphPolishPolish);
Q_TRACE(QSG_sync_entry);
emit window->afterAnimating();
emit window->beforeFrameBegin();
cd->syncSceneGraph();
rc->endSync();
if (profileFrames)
syncTime = renderTimer.nsecsElapsed();
Q_TRACE(QSG_sync_exit);
Q_QUICK_SG_PROFILE_RECORD(QQuickProfiler::SceneGraphRenderLoopFrame,
QQuickProfiler::SceneGraphRenderLoopSync);
Q_TRACE(QSG_render_entry);
//Tell the renderer about the windows backing store
auto softwareRenderer = static_cast<QSGSoftwareRenderer*>(cd->renderer);
if (softwareRenderer)
softwareRenderer->setBackingStore(m_backingStores[window]);
cd->renderSceneGraph();
if (profileFrames)
renderTime = renderTimer.nsecsElapsed();
Q_TRACE(QSG_render_exit);
Q_QUICK_SG_PROFILE_RECORD(QQuickProfiler::SceneGraphRenderLoopFrame,
QQuickProfiler::SceneGraphRenderLoopRender);
Q_TRACE(QSG_swap_entry);
if (data.grabOnly) {
grabContent = m_backingStores[window]->handle()->toImage();
data.grabOnly = false;
}
if (alsoSwap && window->isVisible()) {
//Flush backingstore to window
if (!isNewExpose)
m_backingStores[window]->flush(softwareRenderer->flushRegion());
else
m_backingStores[window]->flush(QRegion(QRect(QPoint(0,0), window->size())));
cd->fireFrameSwapped();
}
emit window->afterFrameEnd();
qint64 swapTime = 0;
if (profileFrames)
swapTime = renderTimer.nsecsElapsed();
Q_TRACE(QSG_swap_exit);
Q_QUICK_SG_PROFILE_END(QQuickProfiler::SceneGraphRenderLoopFrame,
QQuickProfiler::SceneGraphRenderLoopSwap);
if (QSG_RASTER_LOG_TIME_RENDERLOOP().isDebugEnabled()) {
static QTime lastFrameTime = QTime::currentTime();
qCDebug(QSG_RASTER_LOG_TIME_RENDERLOOP,
"Frame rendered with 'software' renderloop in %dms, polish=%d, sync=%d, render=%d, swap=%d, frameDelta=%d",
int(swapTime / 1000000),
int(polishTime / 1000000),
int((syncTime - polishTime) / 1000000),
int((renderTime - syncTime) / 1000000),
int((swapTime - renderTime) / 1000000),
int(lastFrameTime.msecsTo(QTime::currentTime())));
lastFrameTime = QTime::currentTime();
}
// Might have been set during syncSceneGraph()
if (data.updatePending)
maybeUpdate(window);
}
void QSGSoftwareRenderLoop::exposureChanged(QQuickWindow *window)
{
if (window->isExposed()) {
m_windows[window].updatePending = true;
renderWindow(window, true);
}
}
QImage QSGSoftwareRenderLoop::grab(QQuickWindow *window)
{
//If the window was never shown, create a new backing store
if (!m_backingStores.contains(window)) {
m_backingStores[window] = new QBackingStore(window);
// Call create on window to make sure platform window is created
window->create();
}
//If there is no WindowData, add one
if (!m_windows.contains(window)) {
WindowData data;
data.updatePending = false;
m_windows[window] = data;
}
m_windows[window].grabOnly = true;
renderWindow(window);
QImage grabbed = grabContent;
grabbed.detach();
grabContent = QImage();
return grabbed;
}
void QSGSoftwareRenderLoop::maybeUpdate(QQuickWindow *window)
{
if (!m_windows.contains(window))
return;
m_windows[window].updatePending = true;
window->requestUpdate();
}
QSurface::SurfaceType QSGSoftwareRenderLoop::windowSurfaceType() const
{
return QSurface::RasterSurface;
}
QSGContext *QSGSoftwareRenderLoop::sceneGraphContext() const
{
return sg;
}
void QSGSoftwareRenderLoop::handleUpdateRequest(QQuickWindow *window)
{
renderWindow(window);
}
QT_END_NAMESPACE
#include "moc_qsgsoftwarerenderloop_p.cpp"