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/*************************************************************************** |
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* * |
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* LinuxSampler - modular, streaming capable sampler * |
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* * |
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* Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck * |
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* Copyright (C) 2005 - 2009 Christian Schoenebeck * |
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* * |
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* This program is free software; you can redistribute it and/or modify * |
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* it under the terms of the GNU General Public License as published by * |
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* the Free Software Foundation; either version 2 of the License, or * |
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* (at your option) any later version. * |
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* * |
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* This program is distributed in the hope that it will be useful, * |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of * |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
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* GNU General Public License for more details. * |
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* * |
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* You should have received a copy of the GNU General Public License * |
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* along with this program; if not, write to the Free Software * |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, * |
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* MA 02111-1307 USA * |
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***************************************************************************/ |
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#ifndef __LS_DEVICE_H__ |
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#define __LS_DEVICE_H__ |
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namespace LinuxSampler { |
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class AudioOutputDeviceFactory; |
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class MidiInputDeviceFactory; |
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/** |
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* Abstract base class for all kind of drivers in LinuxSampler. |
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*/ |
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class Device { |
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public: |
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/** |
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* Determines whether the device is an autonomous instance of some |
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* driver or not autonomous (that is bound to some other entity). |
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* An autonomous device can be created and deleted separately. |
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* A non autonomous device only exists in the context of some |
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* entity, e.g. in the context of a host plugin |
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* (VST, AU, LV2, DSSI, ...) instance, and thus such a device |
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* cannot be created or deleted on its own. |
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* |
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* By default, this method returns @c true unless overridden by the |
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* descendent. |
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*/ |
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virtual bool isAutonomousDevice(); |
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/** |
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* Returns the numerical ID of this device instance. Every device |
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* instance has a unique ID among all devices of its category, that |
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* is e.g. every MIDI input device has a unique ID among all MIDI |
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* input devices and every audio output device has a unique ID |
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* among all audio output devices. The IDs are usually generated by |
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* the respective factory class. |
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*/ |
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int deviceId() const; |
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/** |
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* Whether this is an autonomous device driver. |
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* |
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* @see isAutonomousDevice() |
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*/ |
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static bool isAutonomousDriver(); |
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protected: |
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void setDeviceId(int id); |
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//TODO: maybe it would be cleaner to pass the device id through the drivers' constructors instead of having a setDeviceId() method being available only for the factory classes |
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friend class AudioOutputDeviceFactory; |
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friend class MidiInputDeviceFactory; |
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private: |
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int iDeviceId; //TODO: there is not default initialization (e.g. with -1) yet, since there is no constructor yet, it would require all driver implementations to be updated with a constructor call |
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}; |
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} // namespace LinuxSampler |
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#endif // __LS_DEVICE_H__ |