| /**************************************************************************** |
| ** |
| ** Copyright (C) 2016 The Qt Company Ltd. |
| ** Contact: https://www.qt.io/licensing/ |
| ** |
| ** This file is part of the QtQuick module of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:LGPL$ |
| ** Commercial License Usage |
| ** Licensees holding valid commercial Qt licenses may use this file in |
| ** accordance with the commercial license agreement provided with the |
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| ** |
| ** GNU Lesser General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU Lesser |
| ** General Public License version 3 as published by the Free Software |
| ** Foundation and appearing in the file LICENSE.LGPL3 included in the |
| ** packaging of this file. Please review the following information to |
| ** ensure the GNU Lesser General Public License version 3 requirements |
| ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. |
| ** |
| ** GNU General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU |
| ** General Public License version 2.0 or (at your option) the GNU General |
| ** Public license version 3 or any later version approved by the KDE Free |
| ** Qt Foundation. The licenses are as published by the Free Software |
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| ** included in the packaging of this file. Please review the following |
| ** information to ensure the GNU General Public License requirements will |
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| ** |
| ** $QT_END_LICENSE$ |
| ** |
| ****************************************************************************/ |
| |
| #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 "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; |
| |
| 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->flushFrameSynchronousEvents(); |
| // 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); |
| |
| cd->polishItems(); |
| |
| if (profileFrames) |
| polishTime = renderTimer.nsecsElapsed(); |
| Q_QUICK_SG_PROFILE_SWITCH(QQuickProfiler::SceneGraphPolishFrame, |
| QQuickProfiler::SceneGraphRenderLoopFrame, |
| QQuickProfiler::SceneGraphPolishPolish); |
| |
| emit window->afterAnimating(); |
| |
| cd->syncSceneGraph(); |
| rc->endSync(); |
| |
| if (profileFrames) |
| syncTime = renderTimer.nsecsElapsed(); |
| Q_QUICK_SG_PROFILE_RECORD(QQuickProfiler::SceneGraphRenderLoopFrame, |
| QQuickProfiler::SceneGraphRenderLoopSync); |
| |
| // 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(window->size()); |
| |
| if (profileFrames) |
| renderTime = renderTimer.nsecsElapsed(); |
| Q_QUICK_SG_PROFILE_RECORD(QQuickProfiler::SceneGraphRenderLoopFrame, |
| QQuickProfiler::SceneGraphRenderLoopRender); |
| |
| 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_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 |