RenderResultPacket RenderServerRenderer::createRenderResultPacket(const RenderServerRenderRequest & request)
{
QByteArray outputBuffer;
int bufferSizeBytes = m_renderer.getScreenBufferSizeBytes();
outputBuffer.resize(bufferSizeBytes);
m_renderer.getOutputBuffer(outputBuffer.data());
RenderResultPacket result = RenderResultPacket(request.getSequenceNumber(), request.getIterationNumbers(), outputBuffer);
return result;
}
void RenderServerRenderer::pushCommandToQueue( RenderServerRenderRequest renderRequest )
{
m_queueMutex.lock();
if(renderRequest.getSequenceNumber() > m_currentSequenceNumber)
{
m_currentSequenceNumber = renderRequest.getSequenceNumber();
m_renderTime.restart();
m_totalTime.restart();
}
m_queue.enqueue(renderRequest);
m_queueMutex.unlock();
m_waitCondition.wakeAll();
}
void StandaloneRenderManager::renderNextIteration()
{
try
{
if(m_application.getRunningStatus() == RunningStatus::RUNNING && m_currentScene != NULL)
{
m_noEmittedSignals = true;
if(m_compileScene)
{
m_application.setRendererStatus(RendererStatus::INITIALIZING_SCENE);
m_renderer.initScene(*m_currentScene);
m_compileScene = false;
m_application.setRendererStatus(RendererStatus::RENDERING);
}
// We only diplay one every X frames on screen (to make fair comparison with distributed renderer)
bool shouldOutputIteration = m_nextIterationNumber % 5 == 0;
const double PPMAlpha = 2.0/3.0;
QVector<unsigned long long> iterationNumbers;
QVector<double> ppmRadii;
RenderServerRenderRequestDetails details (m_camera, QByteArray(m_currentScene->getSceneName()),
m_application.getRenderMethod(), m_application.getWidth(), m_application.getHeight(), PPMAlpha);
RenderServerRenderRequest renderRequest (m_application.getSequenceNumber(), iterationNumbers, ppmRadii, details);
m_renderer.renderNextIteration(m_nextIterationNumber, m_nextIterationNumber, m_PPMRadius, shouldOutputIteration, renderRequest.getDetails());
const double ppmRadiusSquared = m_PPMRadius*m_PPMRadius;
const double ppmRadiusSquaredNew = ppmRadiusSquared*(m_nextIterationNumber+PPMAlpha)/double(m_nextIterationNumber+1);
m_PPMRadius = sqrt(ppmRadiusSquaredNew);
// Transfer the output buffer to CPU and signal ready for display
if(shouldOutputIteration)
{
if(m_outputBuffer == NULL)
{
m_outputBuffer = new float[2000*2000*3];
}
m_renderer.getOutputBuffer(m_outputBuffer);
emit newFrameReadyForDisplay(m_outputBuffer, m_nextIterationNumber);
}
fillRenderStatistics();
m_nextIterationNumber++;
}
}
catch(const std::exception & E)
{
m_application.setRunningStatus(RunningStatus::PAUSE);
QString error = QString("%1").arg(E.what());
emit renderManagerError(error);
}
}
void RenderServerRenderer::onNewRenderCommandInQueue()
{
while(true)
{
// Process queued up events/slots, in case we quit
QCoreApplication::processEvents();
if(m_quit)
{
return;
}
// If queue is empty, we wait until we get a new request
if(m_queue.size() == 0)
{
m_waitCondition.wait(&m_waitConditionMutex);
continue;
}
// Process the next RenderServerRenderRequest
RenderServerRenderRequest renderRequest = m_queue.dequeue();
QString iterationNumbersInPacketString = "";
for(int i = 0; i < renderRequest.getNumIterations(); i++)
{
// If the packet we are working has become old during this rendering for-loop, then break out of this loop
if(m_currentSequenceNumber != renderRequest.getSequenceNumber())
{
break;
}
// Else we'll render this frame
else
{
// This renderRequest has a new scene name, so we'll load the new scene
if(m_scene == NULL || m_scene->getSceneName() != renderRequest.getDetails().getSceneName())
{
loadNewScene(renderRequest.getDetails().getSceneName());
}
// Render the frame with local iteration number going from 0 to renderRequestsCurrentPacket.size()
// We only need to create the output buffer for the last iteration of the packet
bool createOutputBuffer = i == renderRequest.getNumIterations() - 1;
renderFrame(renderRequest.getIterationNumbers().at(i), i, renderRequest.getPPMRadii().at(i), createOutputBuffer, renderRequest.getDetails());
iterationNumbersInPacketString += " " + QString::number(renderRequest.getIterationNumbers().at(i));
}
}
// If the packet we have just rendered is old (m_currentSequenceNumber is newer)
// then we drop this packet. This can happen if we have started on a RenderServerRenderRequest but later found out about
// a new sequence, in which case we have break-ed out of the loop above.
if(renderRequest.getSequenceNumber() == m_currentSequenceNumber)
{
RenderResultPacket result = createRenderResultPacket(renderRequest);
QString logString = QString("TRANSFERRING packet (%1 iteration:%2) in sequence %3 to client.")
.arg(result.getNumIterationsInPacket())
.arg(iterationNumbersInPacketString)
.arg(result.getSequenceNumber());
emit newLogString(logString);
emit newRenderResultPacket(result);
}
else
{
QString logString = QString("IGNORED package with %1 iterations since sequence %3 != %4.")
.arg(renderRequest.getNumIterations())
.arg(renderRequest.getSequenceNumber())
.arg(m_currentSequenceNumber);
emit newLogString(logString);
}
}
}
void StandaloneRenderManager::renderNextIteration()
{
try
{
if(m_application.getRunningStatus() == RunningStatus::RUNNING && m_currentScene != NULL)
{
m_noEmittedSignals = true;
if(m_compileScene)
{
m_application.setRendererStatus(RendererStatus::INITIALIZING_SCENE);
m_renderer.initScene(*m_currentScene);
m_compileScene = false;
m_application.setRendererStatus(RendererStatus::STARTING_RENDERING);
}
// We only display one every X frames on screen (to make fair comparison with distributed renderer)
bool shouldOutputIteration = m_nextIterationNumber % 5 == 0;
//bool shouldOutputIteration = m_nextIterationNumber % 1 == 0;
const double PPMAlpha = 2.0/3.0;
QVector<unsigned long long> iterationNumbers;
QVector<double> ppmRadii;
RenderServerRenderRequestDetails details (m_camera, QByteArray(m_currentScene->getSceneName()),
m_application.getRenderMethod(), m_application.getWidth(), m_application.getHeight(), PPMAlpha);
RenderServerRenderRequest renderRequest (m_application.getSequenceNumber(), iterationNumbers, ppmRadii, details);
m_renderer.renderNextIteration(m_nextIterationNumber, m_nextIterationNumber, m_PPMRadius, shouldOutputIteration, renderRequest.getDetails());
const double ppmRadiusSquared = m_PPMRadius*m_PPMRadius;
const double ppmRadiusSquaredNew = ppmRadiusSquared*(m_nextIterationNumber+PPMAlpha)/double(m_nextIterationNumber+1);
m_PPMRadius = sqrt(ppmRadiusSquaredNew);
// set as rendering only after first iteration, since that one can slow due init and sync with gpu
if (m_application.getRendererStatus() != RendererStatus::RENDERING)
m_application.setRendererStatus(RendererStatus::RENDERING);
// Transfer the output buffer to CPU and signal ready for display
m_outputBufferMutex.lock();
m_lastRendererIterationNumber = m_nextIterationNumber;
if(shouldOutputIteration)
{
if(m_outputBuffer == NULL)
{
m_outputBuffer = new float[MAX_OUTPUT_X*MAX_OUTPUT_Y*3];
}
m_renderer.getOutputBuffer(m_outputBuffer);
// FIXME
// vmarz: m_lastRendererIterationNumber shouldn't be exposed like that, but passed next iteration number
// can be invalid (already incremented) when render widget is updating and accumulated values get scaled incorrectly
emit newFrameReadyForDisplay(m_outputBuffer, &m_lastRendererIterationNumber, &m_outputBufferMutex);
}
m_outputBufferMutex.unlock();
fillRenderStatistics();
m_nextIterationNumber++;
}
}
catch(const std::exception & E)
{
m_application.setRunningStatus(RunningStatus::PAUSE);
QString error = QString("%1").arg(E.what());
emit renderManagerError(error);
}
}
