Revision control
++ // 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
++
++ #include "qsgopenvgrenderloop_p.h"
++ #include "qsgopenvgcontext_p.h"
++
++ #include <QtCore/QCoreApplication>
++ #include <QtCore/QElapsedTimer>
++
++ #include <private/qquickanimatorcontroller_p.h>
++ #include <private/qquickwindow_p.h>
++ #include <private/qquickprofiler_p.h>
++
++ #include <qtquick_tracepoints_p.h>
++
++ #include "qopenvgcontext_p.h"
++
++ QT_BEGIN_NAMESPACE
++
++ QSGOpenVGRenderLoop::QSGOpenVGRenderLoop()
++ : vg(nullptr)
++ {
++ sg = QSGContext::createDefaultContext();
++ rc = sg->createRenderContext();
++ }
++
++ QSGOpenVGRenderLoop::~QSGOpenVGRenderLoop()
++ {
++ delete rc;
++ delete sg;
++ }
++
++ void QSGOpenVGRenderLoop::show(QQuickWindow *window)
++ {
++ WindowData data;
++ data.updatePending = false;
++ data.grabOnly = false;
++ m_windows[window] = data;
++
++ maybeUpdate(window);
++ }
++
++ void QSGOpenVGRenderLoop::hide(QQuickWindow *window)
++ {
++ QQuickWindowPrivate *cd = QQuickWindowPrivate::get(window);
++ cd->fireAboutToStop();
++ }
++
++ void QSGOpenVGRenderLoop::windowDestroyed(QQuickWindow *window)
++ {
++ m_windows.remove(window);
++ hide(window);
++
++ QQuickWindowPrivate *d = QQuickWindowPrivate::get(window);
++ d->cleanupNodesOnShutdown();
++
++ if (m_windows.size() == 0) {
++ rc->invalidate();
++ delete vg;
++ vg = nullptr;
++ } else if (vg && window == vg->window()) {
++ vg->doneCurrent();
++ }
++
++ d->animationController.reset();
++ }
++
++ void QSGOpenVGRenderLoop::exposureChanged(QQuickWindow *window)
++ {
++ if (window->isExposed()) {
++ m_windows[window].updatePending = true;
++ renderWindow(window);
++ }
++ }
++
++ QImage QSGOpenVGRenderLoop::grab(QQuickWindow *window)
++ {
++ if (!m_windows.contains(window))
++ return QImage();
++
++ m_windows[window].grabOnly = true;
++
++ renderWindow(window);
++
++ QImage grabbed = grabContent;
++ grabContent = QImage();
++ return grabbed;
++ }
++
++ void QSGOpenVGRenderLoop::update(QQuickWindow *window)
++ {
++ maybeUpdate(window);
++ }
++
++ void QSGOpenVGRenderLoop::handleUpdateRequest(QQuickWindow *window)
++ {
++ renderWindow(window);
++ }
++
++ void QSGOpenVGRenderLoop::maybeUpdate(QQuickWindow *window)
++ {
++ if (!m_windows.contains(window))
++ return;
++
++ m_windows[window].updatePending = true;
++ window->requestUpdate();
++ }
++
++ QAnimationDriver *QSGOpenVGRenderLoop::animationDriver() const
++ {
++ return nullptr;
++ }
++
++ QSGContext *QSGOpenVGRenderLoop::sceneGraphContext() const
++ {
++ return sg;
++ }
++
++ QSGRenderContext *QSGOpenVGRenderLoop::createRenderContext(QSGContext *) const
++ {
++ return rc;
++ }
++
++ void QSGOpenVGRenderLoop::releaseResources(QQuickWindow *window)
++ {
++ Q_UNUSED(window);
++ }
++
++ QSurface::SurfaceType QSGOpenVGRenderLoop::windowSurfaceType() const
++ {
++ return QSurface::OpenVGSurface;
++ }
++
++ void QSGOpenVGRenderLoop::renderWindow(QQuickWindow *window)
++ {
++ QQuickWindowPrivate *cd = QQuickWindowPrivate::get(window);
++ if (!cd->isRenderable() || !m_windows.contains(window))
++ return;
++
++ Q_TRACE_SCOPE(QSG_renderWindow);
++
++ WindowData &data = const_cast<WindowData &>(m_windows[window]);
++
++ if (vg == nullptr) {
++ vg = new QOpenVGContext(window);
++ vg->makeCurrent();
++ QSGOpenVGRenderContext::InitParams params;
++ params.context = vg;
++ cd->context->initialize(¶ms);
++ } else {
++ vg->makeCurrent();
++ }
++
++ 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;
++ }
++ QElapsedTimer renderTimer;
++ qint64 renderTime = 0, syncTime = 0, polishTime = 0;
++ bool profileFrames = QSG_OPENVG_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();
++
++ 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);
++
++ // setup coordinate system for window
++ vgSeti(VG_MATRIX_MODE, VG_MATRIX_PATH_USER_TO_SURFACE);
++ vgLoadIdentity();
++ vgTranslate(0.0f, window->size().height());
++ vgScale(1.0, -1.0);
++
++ 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 = vg->readFramebuffer(window->size() * window->effectiveDevicePixelRatio());
++ data.grabOnly = false;
++ }
++
++ if (alsoSwap && window->isVisible()) {
++ vg->swapBuffers();
++ cd->fireFrameSwapped();
++ }
++
++ qint64 swapTime = 0;
++ if (profileFrames)
++ swapTime = renderTimer.nsecsElapsed();
++ Q_TRACE(QSG_swap_exit);
++ Q_QUICK_SG_PROFILE_END(QQuickProfiler::SceneGraphRenderLoopFrame,
++ QQuickProfiler::SceneGraphRenderLoopSwap);
++
++ if (QSG_OPENVG_LOG_TIME_RENDERLOOP().isDebugEnabled()) {
++ static QTime lastFrameTime = QTime::currentTime();
++ qCDebug(QSG_OPENVG_LOG_TIME_RENDERLOOP,
++ "Frame rendered with 'basic' 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) / 10000000),
++ int(lastFrameTime.msecsTo(QTime::currentTime())));
++ lastFrameTime = QTime::currentTime();
++ }
++
++ // Might have been set during syncSceneGraph()
++ if (data.updatePending)
++ maybeUpdate(window);
++ }
++
++ QT_END_NAMESPACE