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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
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