Differential D2716 Diff 9119 extern/audaspace/src/devices/DeviceManager.cpp

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extern/audaspace/src/devices/DeviceManager.cpp

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				/*******************************************************************************
				* Copyright 2009-2016 Jörg Müller
				*
				* Licensed under the Apache License, Version 2.0 (the "License");
				* you may not use this file except in compliance with the License.
				* You may obtain a copy of the License at
				*
				* http://www.apache.org/licenses/LICENSE-2.0
				*
				* Unless required by applicable law or agreed to in writing, software
				* distributed under the License is distributed on an "AS IS" BASIS,
				* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
				* See the License for the specific language governing permissions and
				* limitations under the License.
				******************************************************************************/

				#include "devices/DeviceManager.h"
				#include "devices/IDeviceFactory.h"
				#include "devices/IDevice.h"
				#include "devices/I3DDevice.h"

				#include <limits>
				#include <string>
				#include <algorithm>

				AUD_NAMESPACE_BEGIN

				std::unordered_map<std::string, std::shared_ptr<IDeviceFactory>> DeviceManager::m_factories;
				std::shared_ptr<IDevice> DeviceManager::m_device;

				void DeviceManager::registerDevice(std::string name, std::shared_ptr<IDeviceFactory> factory)
				{
				m_factories[name] = factory;
				}

				std::shared_ptr<IDeviceFactory> DeviceManager::getDeviceFactory(std::string name)
				{
				return m_factories[name];
				}

				std::shared_ptr<IDeviceFactory> DeviceManager::getDefaultDeviceFactory()
				{
				int min = std::numeric_limits<int>::min();

				std::shared_ptr<IDeviceFactory> result;

				for(auto factory : m_factories)
				{
				if(factory.second->getPriority() >= min)
				{
				result = factory.second;
				min = result->getPriority();
				}
				}

				return result;
				}

				void DeviceManager::setDevice(std::shared_ptr<IDevice> device)
				{
				m_device = device;
				}

				void DeviceManager::openDevice(std::string name)
				{
				setDevice(getDeviceFactory(name)->openDevice());
				}

				void DeviceManager::openDefaultDevice()
				{
				setDevice(getDefaultDeviceFactory()->openDevice());
				}

				void DeviceManager::releaseDevice()
				{
				m_device = nullptr;
				}

				std::shared_ptr<IDevice> DeviceManager::getDevice()
				{
				return m_device;
				}

				std::shared_ptr<I3DDevice> DeviceManager::get3DDevice()
				{
				return std::dynamic_pointer_cast<I3DDevice>(m_device);
				}

				std::vector<std::string> DeviceManager::getAvailableDeviceNames()
				{
				struct DeviceNamePriority {
				std::string name;
				int priority;
				};

				std::vector<DeviceNamePriority> devices;
				devices.reserve(m_factories.size());

				for(const auto& pair : m_factories)
				devices.push_back({pair.first, pair.second->getPriority()});

				auto sort = [](const DeviceNamePriority& lhs, const DeviceNamePriority& rhs){
				return lhs.priority > rhs.priority;
				};

				std::sort(devices.begin(), devices.end(), sort);

				std::vector<std::string> names;
				names.reserve(devices.size());

				for(const auto& device : devices)
				names.push_back(device.name);

				return names;
				}

				AUD_NAMESPACE_END