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https://github.com/cookiengineer/audacity
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7824e94030
... Should have no effect on generated code, except perhaps some slight faster virtual function calls. Mostly useful as documentation of design intent. Tried to mark every one of our classes that inherits from another, or is a base for others, or has abstract virtual functions, and a few others besides.
94 lines
2.3 KiB
C++
94 lines
2.3 KiB
C++
/**********************************************************************
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Audacity: A Digital Audio Editor
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DeviceManager.h
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Created by Michael Chinen (mchinen) on 2/12/11
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Audacity(R) is copyright (c) 1999-2011 Audacity Team.
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License: GPL v2. See License.txt.
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******************************************************************//**
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\class DeviceManager
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\brief A singleton that manages the audio devices known to Audacity
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*//*******************************************************************/
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#ifndef __AUDACITY_DEVICEMANAGER__
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#define __AUDACITY_DEVICEMANAGER__
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#include "Experimental.h"
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#include <vector>
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#include "wx/wx.h"
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#if defined(EXPERIMENTAL_DEVICE_CHANGE_HANDLER)
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#include "DeviceChange.h"
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#endif
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typedef struct DeviceSourceMap {
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int deviceIndex;
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int sourceIndex;
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int hostIndex;
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int totalSources;
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int numChannels;
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wxString sourceString;
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wxString deviceString;
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wxString hostString;
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} DeviceSourceMap;
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wxString MakeDeviceSourceString(const DeviceSourceMap *map);
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class DeviceManager final
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#if defined(EXPERIMENTAL_DEVICE_CHANGE_HANDLER)
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#if defined(HAVE_DEVICE_CHANGE)
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: public DeviceChangeHandler
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#endif
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#endif
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{
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public:
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/// Gets the singleton instance
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static DeviceManager* Instance();
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/// Releases memory assosiated with the singleton
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static void Destroy();
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/// Gets a NEW list of devices by terminating and restarting portaudio
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/// Assumes that DeviceManager is only used on the main thread.
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void Rescan();
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DeviceSourceMap* GetDefaultOutputDevice(int hostIndex);
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DeviceSourceMap* GetDefaultInputDevice(int hostIndex);
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const std::vector<DeviceSourceMap> &GetInputDeviceMaps();
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const std::vector<DeviceSourceMap> &GetOutputDeviceMaps();
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#if defined(EXPERIMENTAL_DEVICE_CHANGE_HANDLER)
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#if defined(HAVE_DEVICE_CHANGE)
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// DeviceChangeHandler implementation
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void DeviceChangeNotification();
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#endif
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#endif
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protected:
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//private constructor - Singleton.
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DeviceManager();
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virtual ~DeviceManager();
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/// Does an initial scan.
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/// Called by GetInputDeviceMaps and GetOutputDeviceMaps when needed.
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void Init();
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DeviceSourceMap* GetDefaultDevice(int hostIndex, int isInput);
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bool m_inited;
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std::vector<DeviceSourceMap> mInputDeviceSourceMaps;
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std::vector<DeviceSourceMap> mOutputDeviceSourceMaps;
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static DeviceManager dm;
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};
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#endif
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