示例#1
0
bool ModelBackgroundLoader::poll(const TimeFrame& timeFrame)
{
#if OGRE_THREAD_SUPPORT
	if (mState == LS_UNINITIALIZED) {
		//Start to load the meshes
		for (SubModelDefinitionsStore::const_iterator I_subModels = mModel.getDefinition()->getSubModelDefinitions().begin(); I_subModels != mModel.getDefinition()->getSubModelDefinitions().end(); ++I_subModels) {
			Ogre::MeshPtr meshPtr = static_cast<Ogre::MeshPtr> (Ogre::MeshManager::getSingleton().getByName((*I_subModels)->getMeshName()));
			if (meshPtr.isNull() || !meshPtr->isPrepared()) {
				try {
					Ogre::BackgroundProcessTicket ticket = Ogre::ResourceBackgroundQueue::getSingleton().prepare(Ogre::MeshManager::getSingleton().getResourceType(), (*I_subModels)->getMeshName(), Ogre::ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME, false, 0, 0, createListener());
					if (ticket) {
						addTicket(ticket);
					}
				} catch (const std::exception& ex) {
					S_LOG_FAILURE("Could not load the mesh " << (*I_subModels)->getMeshName() << " when loading model " << mModel.getName() << "." << ex);
					continue;
				}
			}
		}
		mState = LS_MESH_PREPARING;
		return poll(timeFrame);
	} else if (mState == LS_MESH_PREPARING) {
		if (areAllTicketsProcessed()) {
			mState = LS_MESH_PREPARED;
			return poll(timeFrame);
		}
	} else if (mState == LS_MESH_PREPARED) {
		for (SubModelDefinitionsStore::const_iterator I_subModels = mModel.getDefinition()->getSubModelDefinitions().begin(); I_subModels != mModel.getDefinition()->getSubModelDefinitions().end(); ++I_subModels) {
			Ogre::MeshPtr meshPtr = static_cast<Ogre::MeshPtr> (Ogre::MeshManager::getSingleton().getByName((*I_subModels)->getMeshName()));
			if (!meshPtr.isNull()) {
				if (!meshPtr->isLoaded()) {
#if OGRE_THREAD_SUPPORT == 1
					Ogre::BackgroundProcessTicket ticket = Ogre::ResourceBackgroundQueue::getSingleton().load(Ogre::MeshManager::getSingleton().getResourceType(), meshPtr->getName(), Ogre::ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME, false, 0, 0, createListener());
					if (ticket) {
						//						meshPtr->setBackgroundLoaded(true);
						addTicket(ticket);
					}
#else
					if (!timeFrame.isTimeLeft()) {
						return false;
					}
					try {
						meshPtr->load();
					} catch (const std::exception& ex) {
						S_LOG_FAILURE("Could not load the mesh " << meshPtr->getName() << " when loading model " << mModel.getName() << "." << ex);
						continue;
					}
#endif
				}
			}
		}
		mState = LS_MESH_LOADING;
		return poll(timeFrame);
	} else if (mState == LS_MESH_LOADING) {
		if (areAllTicketsProcessed()) {
			mState = LS_MESH_LOADED;
			return poll(timeFrame);
		}
	} else if (mState == LS_MESH_LOADED) {

		for (SubModelDefinitionsStore::const_iterator I_subModels = mModel.getDefinition()->getSubModelDefinitions().begin(); I_subModels != mModel.getDefinition()->getSubModelDefinitions().end(); ++I_subModels) {
			Ogre::MeshPtr meshPtr = static_cast<Ogre::MeshPtr> (Ogre::MeshManager::getSingleton().getByName((*I_subModels)->getMeshName()));
			if (!meshPtr.isNull()) {
				if (meshPtr->isLoaded()) {
					Ogre::Mesh::SubMeshIterator subMeshI = meshPtr->getSubMeshIterator();
					while (subMeshI.hasMoreElements()) {
						Ogre::SubMesh* submesh(subMeshI.getNext());
						Ogre::MaterialPtr materialPtr = static_cast<Ogre::MaterialPtr> (Ogre::MaterialManager::getSingleton().getByName(submesh->getMaterialName()));
						if (materialPtr.isNull() || !materialPtr->isPrepared()) {
//							S_LOG_VERBOSE("Preparing material " << materialPtr->getName());
							Ogre::BackgroundProcessTicket ticket = Ogre::ResourceBackgroundQueue::getSingleton().prepare(Ogre::MaterialManager::getSingleton().getResourceType(),submesh->getMaterialName(), Ogre::ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME, false, 0, 0, createListener());
							if (ticket) {
								addTicket(ticket);
							}
						}
					}
				}
			}
			for (PartDefinitionsStore::const_iterator I_parts = (*I_subModels)->getPartDefinitions().begin(); I_parts != (*I_subModels)->getPartDefinitions().end(); ++I_parts) {
				if ((*I_parts)->getSubEntityDefinitions().size() > 0) {
					for (SubEntityDefinitionsStore::const_iterator I_subEntities = (*I_parts)->getSubEntityDefinitions().begin(); I_subEntities != (*I_parts)->getSubEntityDefinitions().end(); ++I_subEntities) {
						const std::string& materialName = (*I_subEntities)->getMaterialName();
						if (materialName != "") {
							Ogre::MaterialPtr materialPtr = static_cast<Ogre::MaterialPtr> (Ogre::MaterialManager::getSingleton().getByName(materialName));
							if (materialPtr.isNull() || !materialPtr->isPrepared()) {
//								S_LOG_VERBOSE("Preparing material " << materialName);
								Ogre::BackgroundProcessTicket ticket = Ogre::ResourceBackgroundQueue::getSingleton().prepare(Ogre::MaterialManager::getSingleton().getResourceType(), materialName, Ogre::ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME, false, 0, 0, createListener());
								if (ticket) {
									addTicket(ticket);
								}
							}
						}
					}
				}
			}
		}

		mState = LS_MATERIAL_PREPARING;
		return poll(timeFrame);
	} else if (mState == LS_MATERIAL_PREPARING) {
		if (areAllTicketsProcessed()) {
			mState = LS_MATERIAL_PREPARED;
			return poll(timeFrame);
		}
	} else if (mState == LS_MATERIAL_PREPARED) {
		for (SubModelDefinitionsStore::const_iterator I_subModels = mModel.getDefinition()->getSubModelDefinitions().begin(); I_subModels != mModel.getDefinition()->getSubModelDefinitions().end(); ++I_subModels) {
			Ogre::MeshPtr meshPtr = static_cast<Ogre::MeshPtr> (Ogre::MeshManager::getSingleton().getByName((*I_subModels)->getMeshName()));
			Ogre::Mesh::SubMeshIterator subMeshI = meshPtr->getSubMeshIterator();
			while (subMeshI.hasMoreElements()) {
				Ogre::SubMesh* submesh(subMeshI.getNext());
				Ogre::MaterialPtr materialPtr = static_cast<Ogre::MaterialPtr> (Ogre::MaterialManager::getSingleton().getByName(submesh->getMaterialName()));
				if (!materialPtr.isNull() && !materialPtr->isLoaded()) {

#if OGRE_THREAD_SUPPORT == 1
					Ogre::BackgroundProcessTicket ticket = Ogre::ResourceBackgroundQueue::getSingleton().load(Ogre::MaterialManager::getSingleton().getResourceType(), materialPtr->getName(), Ogre::ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME, false, 0, 0, createListener());
					if (ticket) {
						//						materialPtr->setBackgroundLoaded(true);
						addTicket(ticket);
					}
#else
					Ogre::Material::TechniqueIterator techIter = materialPtr->getSupportedTechniqueIterator();
					while (techIter.hasMoreElements()) {
						Ogre::Technique* tech = techIter.getNext();
						Ogre::Technique::PassIterator passIter = tech->getPassIterator();
						while (passIter.hasMoreElements()) {
							Ogre::Pass* pass = passIter.getNext();
							Ogre::Pass::TextureUnitStateIterator tusIter = pass->getTextureUnitStateIterator();
							while (tusIter.hasMoreElements()) {
								Ogre::TextureUnitState* tus = tusIter.getNext();
								unsigned int frames = tus->getNumFrames();
								for (unsigned int i = 0; i < frames; ++i) {
									if (!timeFrame.isTimeLeft()) {
										return false;
									}
									//This will automatically load the texture.
//									S_LOG_VERBOSE("Loading texture " << tus->getTextureName());
									Ogre::TexturePtr texturePtr = tus->_getTexturePtr(i);
								}
							}
						}
					}
					if (!timeFrame.isTimeLeft()) {
						return false;
					}
//					S_LOG_VERBOSE("Loading material " << materialPtr->getName());
					materialPtr->load();
#endif

				}
			}
			for (PartDefinitionsStore::const_iterator I_parts = (*I_subModels)->getPartDefinitions().begin(); I_parts != (*I_subModels)->getPartDefinitions().end(); ++I_parts) {
				if ((*I_parts)->getSubEntityDefinitions().size() > 0) {
					for (SubEntityDefinitionsStore::const_iterator I_subEntities = (*I_parts)->getSubEntityDefinitions().begin(); I_subEntities != (*I_parts)->getSubEntityDefinitions().end(); ++I_subEntities) {
						const std::string& materialName = (*I_subEntities)->getMaterialName();
						if (materialName != "") {
							Ogre::MaterialPtr materialPtr = static_cast<Ogre::MaterialPtr> (Ogre::MaterialManager::getSingleton().getByName(materialName));
							if (!materialPtr.isNull() && !materialPtr->isLoaded()) {
#if OGRE_THREAD_SUPPORT == 1
								Ogre::BackgroundProcessTicket ticket = Ogre::ResourceBackgroundQueue::getSingleton().load(Ogre::MaterialManager::getSingleton().getResourceType(), materialPtr->getName(), Ogre::ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME, false, 0, 0, createListener());
								if (ticket) {
									addTicket(ticket);
								}
#else
								Ogre::Material::TechniqueIterator techIter = materialPtr->getSupportedTechniqueIterator();
								while (techIter.hasMoreElements()) {
									Ogre::Technique* tech = techIter.getNext();
									Ogre::Technique::PassIterator passIter = tech->getPassIterator();
									while (passIter.hasMoreElements()) {
										Ogre::Pass* pass = passIter.getNext();
										Ogre::Pass::TextureUnitStateIterator tusIter = pass->getTextureUnitStateIterator();
										while (tusIter.hasMoreElements()) {
											Ogre::TextureUnitState* tus = tusIter.getNext();
											unsigned int frames = tus->getNumFrames();
											for (unsigned int i = 0; i < frames; ++i) {
												if (!timeFrame.isTimeLeft()) {
													return false;
												}
												//This will automatically load the texture.
//												S_LOG_VERBOSE("Loading texture " << tus->getTextureName());
												Ogre::TexturePtr texturePtr = tus->_getTexturePtr(i);
											}
										}
									}
								}
								if (!timeFrame.isTimeLeft()) {
									return false;
								}
//								S_LOG_VERBOSE("Loading material " << materialPtr->getName());
								materialPtr->load();
#endif
							}
						}
					}
				}
			}
		}

		mState = LS_MATERIAL_LOADING;
		return poll(timeFrame);
	} else if (mState == LS_MATERIAL_LOADING) {
		if (areAllTicketsProcessed()) {
			mState = LS_DONE;
			return true;
		}

	} else {
		return true;
	}
	return false;
#else
	//If there's no threading support, just return here.
	return true;
#endif
}