bool Z3DNetworkEvaluator::initializeNetwork()
{
if (m_locked) {
LDEBUG() << "locked.";
return false;
}
lock();
bool failed = false;
for (size_t i = 0; i < m_renderingOrder.size(); ++i) {
Z3DProcessor* processor = m_renderingOrder[i];
if (!processor->isInitialized()) {
try {
getGLFocus();
processor->initialize();
processor->m_initialized = true;
CHECK_GL_ERROR;
}
catch (const Exception& e) {
LERROR() << "Failed to initialize processor" << processor->getClassName() << e.what();
// deinitialize processor, in order to make sure that all resources are freed
LINFO() << "Deinitializing" << processor->getClassName() << "...";
getGLFocus();
processor->m_initialized = true;
processor->deinitialize();
processor->m_initialized = false;
// don't break, try to initialize the other processors even if one failed
failed = true;
}
}
}
// update size
sizeChangedFromProcessor();
for (size_t i=0; i<m_reverseSortedRenderProcessors.size(); i++) {
QObject::disconnect(m_reverseSortedRenderProcessors[i],
SIGNAL(requestUpstreamSizeChange(Z3DRenderProcessor*)),
0, 0);
connect(m_reverseSortedRenderProcessors[i], SIGNAL(requestUpstreamSizeChange(Z3DRenderProcessor*)),
this, SLOT(sizeChangedFromProcessor(Z3DRenderProcessor*)));
}
unlock();
CHECK_GL_ERROR;
return !failed;
}
void GLCanvas::initPainter() {
if (painter_) {
getGLFocus();
painter_->init();
painter_->sizeChanged(size_);
}
}
bool Z3DNetworkEvaluator::deinitializeNetwork()
{
if (m_locked) {
LWARN() << "locked.";
return false;
}
if (!m_canvasRenderer) {
LWARN() << "no network.";
return false;
}
lock();
bool failed = false;
for (size_t i = 0; i < m_renderingOrder.size(); ++i) {
Z3DProcessor* processor = m_renderingOrder[i];
if (processor->isInitialized()) {
try {
getGLFocus();
processor->deinitialize();
processor->m_initialized = false;
CHECK_GL_ERROR;
}
catch (const Exception& e) {
LERROR() << "Failed to deinitialize processor" << processor->getClassName() << e.what();
// don't break, try to deinitialize the other processors even if one failed
failed = true;
}
}
}
unlock();
return !failed;
}
void GLUTCanvas::update() {
getGLFocus();
glutPostRedisplay();
}
void GLUTCanvas::repaint() {
getGLFocus();
display();
}
QString Z3DNetworkEvaluator::process(bool stereo)
{
if (!m_canvasRenderer)
return "No Network";
if (m_locked) {
LDEBUG() << "locked. Scheduling.";
m_processPending = true;
return "";
}
lock();
QString error;
// notify process wrappers
for (size_t j = 0; j < m_processWrappers.size(); ++j)
m_processWrappers[j]->beforeNetworkProcess();
CHECK_GL_ERROR;
// Iterate over processing in rendering order
for (size_t i = 0; i < m_renderingOrder.size(); ++i) {
Z3DProcessor* currentProcessor = m_renderingOrder[i];
// all processors should have been initialized at this point
if (!currentProcessor->isInitialized()) {
LWARN() << "Skipping uninitialized processor" << currentProcessor->getClassName();
continue;
}
Z3DEye eye = stereo ? LeftEye : CenterEye;
// run the processor, if it needs processing and is ready
if (!currentProcessor->isValid(eye) && currentProcessor->isReady(eye)) {
// notify process wrappers
for (size_t j=0; j < m_processWrappers.size(); ++j)
m_processWrappers[j]->beforeProcess(currentProcessor);
CHECK_GL_ERROR;
try {
getGLFocus();
currentProcessor->process(eye);
currentProcessor->setValid(eye);
CHECK_GL_ERROR;
}
catch (Exception& e) {
LERROR() << "Exception from"
<< currentProcessor->getClassName() << ":" << e.what();
error += e.what();
break;
}
catch (std::exception& e) {
LERROR() << "std exception from"
<< currentProcessor->getClassName() << ":" << e.what();
error += e.what();
break;
}
// notify process wrappers
getGLFocus();
for (size_t j = 0; j < m_processWrappers.size(); ++j)
m_processWrappers[j]->afterProcess(currentProcessor);
CHECK_GL_ERROR;
}
if (stereo && !currentProcessor->isValid(RightEye) && currentProcessor->isReady(RightEye)) {
// notify process wrappers
for (size_t j=0; j < m_processWrappers.size(); ++j)
m_processWrappers[j]->beforeProcess(currentProcessor);
CHECK_GL_ERROR;
try {
getGLFocus();
currentProcessor->process(RightEye);
currentProcessor->setValid(RightEye);
CHECK_GL_ERROR;
}
catch (Exception& e) {
LERROR() << "Exception from"
<< currentProcessor->getClassName() << ":" << e.what();
error += e.what();
break;
}
catch (std::exception& e) {
LERROR() << "std exception from"
<< currentProcessor->getClassName() << ":" << e.what();
error += e.what();
break;
}
// notify process wrappers
getGLFocus();
for (size_t j = 0; j < m_processWrappers.size(); ++j)
m_processWrappers[j]->afterProcess(currentProcessor);
CHECK_GL_ERROR;
}
}
// notify process wrappers
for (size_t j = 0; j < m_processWrappers.size(); ++j)
m_processWrappers[j]->afterNetworkProcess();
CHECK_GL_ERROR;
unlock();
// make sure that canvases are repainted, if their update has been blocked by the locked evaluator
if (m_processPending) {
m_processPending = false;
m_canvasRenderer->invalidate();
}
return error;
}
void Z3DNetworkEvaluator::buildNetwork()
{
std::set<Z3DProcessor*> prevProcessors(
m_renderingOrder.begin(), m_renderingOrder.end());
m_renderingOrder.clear();
m_processorToVertexMapper.clear();
m_processorGraph.clear();
m_reverseSortedRenderProcessors.clear();
// nothing more to do, if no network sink is present
if (!m_canvasRenderer)
return;
std::set<Z3DProcessor*> processed;
std::queue<Z3DProcessor*> processQueue;
processQueue.push(m_canvasRenderer);
Vertex v = boost::add_vertex(VertexInfo(m_canvasRenderer), m_processorGraph);
m_processorToVertexMapper[m_canvasRenderer] = v;
// build graph of all connected processors
while (!processQueue.empty()) {
Z3DProcessor *processor = processQueue.front();
const std::vector<Z3DInputPortBase*> inports = processor->getInputPorts();
for (size_t i = 0; i < inports.size(); ++i) {
const std::vector<Z3DOutputPortBase*> connected = inports[i]->getConnected();
for (size_t j = 0; j < connected.size(); ++j) {
Z3DProcessor *outProcessor = connected[j]->getProcessor();
if (m_processorToVertexMapper.find(outProcessor) ==
m_processorToVertexMapper.end()) {
processQueue.push(outProcessor);
Vertex v = boost::add_vertex(VertexInfo(outProcessor), m_processorGraph);
m_processorToVertexMapper[outProcessor] = v;
}
boost::add_edge(m_processorToVertexMapper[outProcessor],
m_processorToVertexMapper[processor],
EdgeInfo(connected[j], inports[i]),
m_processorGraph);
}
}
processed.insert(processor);
processQueue.pop();
}
// sort to get rendering order
std::vector<Vertex> sorted;
boost::topological_sort(m_processorGraph, std::back_inserter(sorted));
for (std::vector<Vertex>::reverse_iterator rit = sorted.rbegin();
rit != sorted.rend(); rit++) {
m_renderingOrder.push_back(m_processorGraph[*rit].processor);
}
#ifdef _DEBUG_
LINFO() << "Rendering Order: ";
for (size_t i=0; i<m_renderingOrder.size(); i++) {
LINFO() << " " << i << ": " << m_renderingOrder[i]->getClassName();
}
LINFO() << "";
#endif
// compare processors in network before and after updating, deinitialize removed processors
std::set<Z3DProcessor*> currProcessors(m_renderingOrder.begin(), m_renderingOrder.end());
std::set<Z3DProcessor*> removedProcessors;
std::set_difference(prevProcessors.begin(), prevProcessors.end(),
currProcessors.begin(), currProcessors.end(),
std::inserter(removedProcessors, removedProcessors.end()));
if (!removedProcessors.empty()) {
#ifdef _DEBUG_
LINFO() << "Deinitialized processors after updating: ";
#endif
for (std::set<Z3DProcessor*>::iterator it=removedProcessors.begin();
it != removedProcessors.end(); ++it) {
#ifdef _DEBUG_
LINFO() << " " << " : " << (*it)->getClassName();
#endif
try {
getGLFocus();
(*it)->deinitialize();
(*it)->m_initialized = false;
CHECK_GL_ERROR;
}
catch (const Exception& e) {
LERROR() << "Failed to deinitialize processor" << (*it)->getClassName() << e.what();
}
}
#ifdef _DEBUG_
LINFO() << "";
#endif
}
// update reverse sorted renderprocessors
for (std::vector<Z3DProcessor*>::reverse_iterator rit = m_renderingOrder.rbegin();
rit != m_renderingOrder.rend(); rit++) {
if (qobject_cast<Z3DRenderProcessor*>(*rit) == 0)
continue;
m_reverseSortedRenderProcessors.push_back(qobject_cast<Z3DRenderProcessor*>(*rit));
}
}