diff options
Diffstat (limited to 'src/render/backend/renderer.cpp')
| -rw-r--r-- | src/render/backend/renderer.cpp | 172 |
1 files changed, 100 insertions, 72 deletions
diff --git a/src/render/backend/renderer.cpp b/src/render/backend/renderer.cpp index da4936a8b..b89f21522 100644 --- a/src/render/backend/renderer.cpp +++ b/src/render/backend/renderer.cpp @@ -68,6 +68,7 @@ #include <Qt3DRender/private/technique_p.h> #include <Qt3DRender/private/renderthread_p.h> #include <Qt3DRender/private/renderview_p.h> +#include <Qt3DRender/private/scenemanager_p.h> #include <Qt3DRender/private/techniquefilternode_p.h> #include <Qt3DRender/private/viewportnode_p.h> #include <Qt3DRender/private/vsyncframeadvanceservice_p.h> @@ -86,12 +87,17 @@ #include <Qt3DRender/private/updatelevelofdetailjob_p.h> #include <Qt3DRender/private/buffercapture_p.h> #include <Qt3DRender/private/offscreensurfacehelper_p.h> +#include <Qt3DRender/private/renderviewbuilder_p.h> #include <Qt3DRender/qcameralens.h> +#include <Qt3DCore/qt3dcore-config.h> #include <Qt3DCore/private/qeventfilterservice_p.h> #include <Qt3DCore/private/qabstractaspectjobmanager_p.h> #include <Qt3DCore/private/qnodecreatedchangegenerator_p.h> + +#if defined(QT3D_JOBS_RUN_STATS) #include <Qt3DCore/private/aspectcommanddebugger_p.h> +#endif #include <QStack> #include <QOffscreenSurface> @@ -147,6 +153,7 @@ namespace Render { Renderer::Renderer(QRenderAspect::RenderType type) : m_services(nullptr) , m_nodesManager(nullptr) + , m_renderSceneRoot(nullptr) , m_defaultRenderStateSet(nullptr) , m_graphicsContext(nullptr) , m_renderQueue(new RenderQueue()) @@ -155,10 +162,10 @@ Renderer::Renderer(QRenderAspect::RenderType type) , m_waitForInitializationToBeCompleted(0) , m_pickEventFilter(new PickEventFilter()) , m_exposed(0) - , m_shareContext(nullptr) , m_changeSet(0) , m_lastFrameCorrect(0) , m_glContext(nullptr) + , m_shareContext(nullptr) , m_pickBoundingVolumeJob(PickBoundingVolumeJobPtr::create()) , m_time(0) , m_settings(nullptr) @@ -170,8 +177,8 @@ Renderer::Renderer(QRenderAspect::RenderType type) , m_updateWorldBoundingVolumeJob(Render::UpdateWorldBoundingVolumeJobPtr::create()) , m_updateTreeEnabledJob(Render::UpdateTreeEnabledJobPtr::create()) , m_sendRenderCaptureJob(Render::SendRenderCaptureJobPtr::create(this)) + , m_sendBufferCaptureJob(Render::SendBufferCaptureJobPtr::create()) , m_updateLevelOfDetailJob(Render::UpdateLevelOfDetailJobPtr::create()) - , m_sendBufferCaptureJob(Render::SendBufferCaptureJobPtr::create(this)) , m_updateMeshTriangleListJob(Render::UpdateMeshTriangleListJobPtr::create()) , m_filterCompatibleTechniqueJob(Render::FilterCompatibleTechniqueJobPtr::create()) , m_bufferGathererJob(Render::GenericLambdaJobPtr<std::function<void ()>>::create([this] { lookForDirtyBuffers(); }, JobTypes::DirtyBufferGathering)) @@ -273,6 +280,13 @@ void Renderer::setNodeManagers(NodeManagers *managers) m_filterCompatibleTechniqueJob->setManager(m_nodesManager->techniqueManager()); } +void Renderer::setServices(QServiceLocator *services) +{ + m_services = services; + + m_nodesManager->sceneManager()->setDownloadService(m_services->downloadHelperService()); +} + NodeManagers *Renderer::nodeManagers() const { return m_nodesManager; @@ -530,17 +544,26 @@ void Renderer::render() void Renderer::doRender() { - bool submissionSucceeded = false; - bool hasCleanedQueueAndProceeded = false; Renderer::ViewSubmissionResultData submissionData; + bool hasCleanedQueueAndProceeded = false; bool preprocessingComplete = false; - - if (isReadyToSubmit()) { - - // Lock the mutex to protect access to m_surface and check if we are still set - // to the running state and that we have a valid surface on which to draw - // TO DO: Is that still needed given the surface changes - QMutexLocker locker(&m_mutex); + bool beganDrawing = false; + const bool canSubmit = isReadyToSubmit(); + + // Lock the mutex to protect access to the renderQueue while we look for its state + QMutexLocker locker(&m_renderQueueMutex); + const bool queueIsComplete = m_renderQueue->isFrameQueueComplete(); + const bool queueIsEmpty = m_renderQueue->targetRenderViewCount() == 0; + + // When using synchronous rendering (QtQuick) + // We are not sure that the frame queue is actually complete + // Since a call to render may not be synched with the completions + // of the RenderViewJobs + // In such a case we return early, waiting for a next call with + // the frame queue complete at this point + + // RenderQueue is complete (but that means it may be of size 0) + if (canSubmit && (queueIsComplete && !queueIsEmpty)) { const QVector<Render::RenderView *> renderViews = m_renderQueue->nextFrameQueue(); #ifdef QT3D_JOBS_RUN_STATS @@ -555,8 +578,7 @@ void Renderer::doRender() submissionStatsPart2.jobId.typeAndInstance[1] = 0; submissionStatsPart2.threadId = reinterpret_cast<quint64>(QThread::currentThreadId()); #endif - - if (canRender() && (submissionSucceeded = renderViews.size() > 0) == true) { + if (canRender()) { // Clear all dirty flags but Compute so that // we still render every frame when a compute shader is used in a scene BackendNodeDirtySet changesToUnset = m_changeSet; @@ -578,7 +600,8 @@ void Renderer::doRender() // Reset state for each draw if we don't have complete control of the context if (!m_ownedContext) m_graphicsContext->setCurrentStateSet(nullptr); - if (m_graphicsContext->beginDrawing(surface)) { + beganDrawing = m_graphicsContext->beginDrawing(surface); + if (beganDrawing) { // 1) Execute commands for buffer uploads, texture updates, shader loading first updateGLResources(); // 2) Update VAO and copy data into commands to allow concurrent submission @@ -589,6 +612,7 @@ void Renderer::doRender() } // 2) Proceed to next frame and start preparing frame n + 1 m_renderQueue->reset(); + locker.unlock(); // Done protecting RenderQueue m_vsyncFrameAdvanceService->proceedToNextFrame(); hasCleanedQueueAndProceeded = true; @@ -632,61 +656,57 @@ void Renderer::doRender() #endif } - // Note: submissionSucceeded is false when - // * we cannot render because a shutdown has been scheduled - // * the renderqueue is incomplete (only when rendering with a Scene3D) - // Otherwise returns true even for cases like - // * No render view - // * No surface set - // * OpenGLContext failed to be set current - // This behavior is important as we need to - // call proceedToNextFrame despite rendering errors that aren't fatal - // Only reset renderQueue and proceed to next frame if the submission - // succeeded or it we are using a render thread and that is wasn't performed + // succeeded or if we are using a render thread and that is wasn't performed // already - // If submissionSucceeded isn't true this implies that something went wrong + // If hasCleanedQueueAndProceeded isn't true this implies that something went wrong // with the rendering and/or the renderqueue is incomplete from some reason // (in the case of scene3d the render jobs may be taking too long ....) - if (m_renderThread || submissionSucceeded) { - - if (!hasCleanedQueueAndProceeded) { - // Reset the m_renderQueue so that we won't try to render - // with a queue used by a previous frame with corrupted content - // if the current queue was correctly submitted - m_renderQueue->reset(); - - // We allow the RenderTickClock service to proceed to the next frame - // In turn this will allow the aspect manager to request a new set of jobs - // to be performed for each aspect - m_vsyncFrameAdvanceService->proceedToNextFrame(); - } + // or alternatively it could be complete but empty (RenderQueue of size 0) + if (!hasCleanedQueueAndProceeded && + (m_renderThread || queueIsComplete || queueIsEmpty)) { + // RenderQueue was full but something bad happened when + // trying to render it and therefore proceedToNextFrame was not called + // Note: in this case the renderQueue mutex is still locked + + // Reset the m_renderQueue so that we won't try to render + // with a queue used by a previous frame with corrupted content + // if the current queue was correctly submitted + m_renderQueue->reset(); + + // We allow the RenderTickClock service to proceed to the next frame + // In turn this will allow the aspect manager to request a new set of jobs + // to be performed for each aspect + m_vsyncFrameAdvanceService->proceedToNextFrame(); + } - // Perform the last swapBuffers calls after the proceedToNextFrame - // as this allows us to gain a bit of time for the preparation of the - // next frame + // Perform the last swapBuffers calls after the proceedToNextFrame + // as this allows us to gain a bit of time for the preparation of the + // next frame + // Finish up with last surface used in the list of RenderViews + if (beganDrawing) { + SurfaceLocker surfaceLock(submissionData.surface); // Finish up with last surface used in the list of RenderViews - if (submissionSucceeded) { - SurfaceLocker surfaceLock(submissionData.surface); - // Finish up with last surface used in the list of RenderViews - m_graphicsContext->endDrawing(submissionData.lastBoundFBOId == m_graphicsContext->defaultFBO() && surfaceLock.isSurfaceValid()); - } + m_graphicsContext->endDrawing(submissionData.lastBoundFBOId == m_graphicsContext->defaultFBO() && surfaceLock.isSurfaceValid()); } } // Called by RenderViewJobs +// When the frameQueue is complete and we are using a renderThread +// we allow the render thread to proceed void Renderer::enqueueRenderView(Render::RenderView *renderView, int submitOrder) { - QMutexLocker locker(&m_mutex); // Prevent out of order execution + QMutexLocker locker(&m_renderQueueMutex); // Prevent out of order execution // We cannot use a lock free primitive here because: // - QVector is not thread safe // - Even if the insert is made correctly, the isFrameComplete call // could be invalid since depending on the order of execution // the counter could be complete but the renderview not yet added to the // buffer depending on whichever order the cpu decides to process this - - if (m_renderQueue->queueRenderView(renderView, submitOrder)) { + const bool isQueueComplete = m_renderQueue->queueRenderView(renderView, submitOrder); + locker.unlock(); // We're done protecting the queue at this point + if (isQueueComplete) { if (m_renderThread && m_running.load()) Q_ASSERT(m_submitRenderViewsSemaphore.available() == 0); m_submitRenderViewsSemaphore.release(1); @@ -725,16 +745,6 @@ bool Renderer::isReadyToSubmit() // something to render // The case of shutdown should have been handled just before Q_ASSERT(m_renderQueue->isFrameQueueComplete()); - } else { - // When using synchronous rendering (QtQuick) - // We are not sure that the frame queue is actually complete - // Since a call to render may not be synched with the completions - // of the RenderViewJobs - // In such a case we return early, waiting for a next call with - // the frame queue complete at this point - QMutexLocker locker(&m_mutex); - if (!m_renderQueue->isFrameQueueComplete()) - return false; } return true; } @@ -1011,12 +1021,11 @@ void Renderer::updateGLResources() const QVector<HBuffer> dirtyBufferHandles = std::move(m_dirtyBuffers); for (HBuffer handle: dirtyBufferHandles) { Buffer *buffer = m_nodesManager->bufferManager()->data(handle); - // Perform data upload // Forces creation if it doesn't exit if (!m_graphicsContext->hasGLBufferForBuffer(buffer)) m_graphicsContext->glBufferForRenderBuffer(buffer); - else if (buffer->isDirty()) // Otherwise update the glBuffer - m_graphicsContext->updateBuffer(buffer); + // Update the glBuffer data + m_graphicsContext->updateBuffer(buffer); buffer->unsetDirty(); } } @@ -1056,6 +1065,11 @@ void Renderer::updateGLResources() // Render Thread void Renderer::updateTexture(Texture *texture) { + // Check that the current texture images are still in place, if not, do not update + const bool isValid = texture->isValid(); + if (!isValid) + return; + // For implementing unique, non-shared, non-cached textures. // for now, every texture is shared by default @@ -1420,16 +1434,25 @@ QVector<Qt3DCore::QAspectJobPtr> Renderer::renderBinJobs() renderBinJobs.push_back(m_textureGathererJob); renderBinJobs.push_back(m_shaderGathererJob); - // Traverse the current framegraph. For each leaf node create a - // RenderView and set its configuration then create a job to - // populate the RenderView with a set of RenderCommands that get - // their details from the RenderNodes that are visible to the - // Camera selected by the framegraph configuration - FrameGraphVisitor visitor(this, m_nodesManager->frameGraphManager()); - visitor.traverse(frameGraphRoot(), &renderBinJobs); + QMutexLocker lock(&m_renderQueueMutex); + if (m_renderQueue->wasReset()) { // Have we rendered yet? (Scene3D case) + // Traverse the current framegraph. For each leaf node create a + // RenderView and set its configuration then create a job to + // populate the RenderView with a set of RenderCommands that get + // their details from the RenderNodes that are visible to the + // Camera selected by the framegraph configuration + FrameGraphVisitor visitor(m_nodesManager->frameGraphManager()); + const QVector<FrameGraphNode *> fgLeaves = visitor.traverse(frameGraphRoot()); + + const int fgBranchCount = fgLeaves.size(); + for (int i = 0; i < fgBranchCount; ++i) { + RenderViewBuilder builder(fgLeaves.at(i), i, this); + renderBinJobs.append(builder.buildJobHierachy()); + } - // Set target number of RenderViews - m_renderQueue->setTargetRenderViewCount(visitor.leafNodeCount()); + // Set target number of RenderViews + m_renderQueue->setTargetRenderViewCount(fgBranchCount); + } return renderBinJobs; } @@ -1444,6 +1467,11 @@ QAspectJobPtr Renderer::syncTextureLoadingJob() return m_syncTextureLoadingJob; } +QAspectJobPtr Renderer::expandBoundingVolumeJob() +{ + return m_expandBoundingVolumeJob; +} + QAbstractFrameAdvanceService *Renderer::frameAdvanceService() const { return static_cast<Qt3DCore::QAbstractFrameAdvanceService *>(m_vsyncFrameAdvanceService.data()); |