/[svn]/linuxsampler/trunk/src/engines/AbstractEngineChannel.h
ViewVC logotype

Contents of /linuxsampler/trunk/src/engines/AbstractEngineChannel.h

Parent Directory Parent Directory | Revision Log Revision Log


Revision 2354 - (show annotations) (download) (as text)
Sun Jul 8 10:29:07 2012 UTC (9 years ago) by persson
File MIME type: text/x-c++hdr
File size: 10154 byte(s)
* DSSI bugfix: it wasn't possible to change engine type. The MIDI port
  and audio channel routing for DSSI plugins are now visible.

1 /***************************************************************************
2 * *
3 * LinuxSampler - modular, streaming capable sampler *
4 * *
5 * Copyright (C) 2003,2004 by Benno Senoner and Christian Schoenebeck *
6 * Copyright (C) 2005-2008 Christian Schoenebeck *
7 * Copyright (C) 2009-2012 Christian Schoenebeck and Grigor Iliev *
8 * *
9 * This program is free software; you can redistribute it and/or modify *
10 * it under the terms of the GNU General Public License as published by *
11 * the Free Software Foundation; either version 2 of the License, or *
12 * (at your option) any later version. *
13 * *
14 * This program is distributed in the hope that it will be useful, *
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
17 * GNU General Public License for more details. *
18 * *
19 * You should have received a copy of the GNU General Public License *
20 * along with this program; if not, write to the Free Software *
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, *
22 * MA 02111-1307 USA *
23 ***************************************************************************/
24
25 #ifndef __LS_ABSTRACTENGINECHANNEL_H__
26 #define __LS_ABSTRACTENGINECHANNEL_H__
27
28 #include "EngineChannel.h"
29 #include "AbstractEngine.h"
30
31 #include "../common/Pool.h"
32 #include "../common/RingBuffer.h"
33
34 namespace LinuxSampler {
35
36 class AbstractEngineChannel: public EngineChannel {
37 public:
38 // implementation of abstract methods derived from interface class 'LinuxSampler::EngineChannel'
39 virtual void PrepareLoadInstrument(const char* FileName, uint Instrument);
40 virtual void Reset();
41 virtual void SendNoteOn(uint8_t Key, uint8_t Velocity, uint8_t MidiChannel);
42 virtual void SendNoteOn(uint8_t Key, uint8_t Velocity, uint8_t MidiChannel, int32_t FragmentPos);
43 virtual void SendNoteOff(uint8_t Key, uint8_t Velocity, uint8_t MidiChannel);
44 virtual void SendNoteOff(uint8_t Key, uint8_t Velocity, uint8_t MidiChannel, int32_t FragmentPos);
45 virtual void SendPitchbend(int Pitch, uint8_t MidiChannel);
46 virtual void SendPitchbend(int Pitch, uint8_t MidiChannel, int32_t FragmentPos);
47 virtual void SendControlChange(uint8_t Controller, uint8_t Value, uint8_t MidiChannel);
48 virtual void SendControlChange(uint8_t Controller, uint8_t Value, uint8_t MidiChannel, int32_t FragmentPos);
49 virtual bool StatusChanged(bool bNewStatus = false);
50 virtual float Volume();
51 virtual void Volume(float f);
52 virtual float Pan();
53 virtual void Pan(float f);
54 virtual uint Channels();
55 virtual AudioOutputDevice* GetAudioOutputDevice();
56 virtual void SetOutputChannel(uint EngineAudioChannel, uint AudioDeviceChannel);
57 virtual int OutputChannel(uint EngineAudioChannel);
58 virtual void Connect(MidiInputPort* pMidiPort, midi_chan_t MidiChannel);
59 virtual void DisconnectMidiInputPort();
60 virtual MidiInputPort* GetMidiInputPort();
61 virtual midi_chan_t MidiChannel();
62 virtual String InstrumentFileName();
63 virtual String InstrumentName();
64 virtual int InstrumentIndex();
65 virtual int InstrumentStatus();
66 virtual Engine* GetEngine();
67 virtual String EngineName();
68 virtual FxSend* AddFxSend(uint8_t MidiCtrl, String Name = "") throw (Exception);
69 virtual FxSend* GetFxSend(uint FxSendIndex);
70 virtual uint GetFxSendCount();
71 virtual void RemoveFxSend(FxSend* pFxSend);
72 virtual void Connect(VirtualMidiDevice* pDevice);
73 virtual void Disconnect(VirtualMidiDevice* pDevice);
74
75
76 virtual AbstractEngine::Format GetEngineFormat() = 0;
77
78 AudioOutputDevice* GetAudioOutputDeviceSafe();
79
80 friend class AbstractVoice;
81 friend class AbstractEngine;
82 template<class TV, class TRR, class TR, class TD, class TIM, class TI> friend class EngineBase;
83 template<class EC, class R, class S, class D> friend class VoiceBase;
84
85 protected:
86 AbstractEngineChannel();
87 virtual ~AbstractEngineChannel();
88
89 AbstractEngine* pEngine;
90 Mutex EngineMutex; ///< protects the Engine from access by the instrument loader thread when lscp is disconnecting
91
92 protected:
93 AudioChannel* pChannelLeft; ///< encapsulates the audio rendering buffer (left)
94 AudioChannel* pChannelRight; ///< encapsulates the audio rendering buffer (right)
95 int AudioDeviceChannelLeft; ///< audio device channel number to which the left channel is connected to
96 int AudioDeviceChannelRight; ///< audio device channel number to which the right channel is connected to
97 MidiInputPort* pMidiInputPort; ///< Points to the connected MIDI input port or NULL if none assigned.
98 midi_chan_t midiChannel; ///< MIDI channel(s) on which this engine channel listens to.
99 RingBuffer<Event,false>* pEventQueue; ///< Input event queue.
100 RTList<Event>* pEvents; ///< All engine channel specific events for the current audio fragment.
101 uint8_t ControllerTable[129]; ///< Reflects the current values (0-127) of all MIDI controllers for this engine / sampler channel. Number 128 is for channel pressure (mono aftertouch).
102 String InstrumentFile;
103 int InstrumentIdx;
104 String InstrumentIdxName;
105 int InstrumentStat;
106 double GlobalVolume; ///< Master volume factor set through the C++ API / LSCP (a value < 1.0 means attenuation, a value > 1.0 means amplification)
107 double MidiVolume; ///< Volume factor altered by MIDI CC#7 (a value < 1.0 means attenuation, a value > 1.0 means amplification)
108 float GlobalPanLeft;
109 float GlobalPanRight;
110 int Pitch; ///< Current (absolute) MIDI pitch value.
111 float CurrentKeyDimension; ///< Current value (0-1.0) for the keyboard dimension, altered by pressing a keyswitching key.
112 bool PortamentoMode; ///< in Portamento Mode we slide the pitch from the last note to the current note.
113 float PortamentoTime; ///< How long it will take to glide from the previous note to the current (in seconds)
114 float PortamentoPos; ///< Current position on the keyboard, that is integer and fractional part (only used if PortamentoMode is on)
115 std::vector<FxSend*> fxSends;
116 int GlobalTranspose; ///< amount of semi tones all notes should be transposed
117 int iLastPanRequest; ///< just for the return value of Pan(), so we don't have to make an injective function
118 int iEngineIndexSelf; ///< Reflects the index of this EngineChannel in the Engine's ArrayList.
119 bool bStatusChanged; ///< true in case an engine parameter has changed (e.g. new instrument, another volumet)
120 uint32_t RoundRobinIndex; ///< counter for round robin sample selection, incremented for each note on
121
122 SynchronizedConfig< ArrayList<VirtualMidiDevice*> > virtualMidiDevices;
123 SynchronizedConfig< ArrayList<VirtualMidiDevice*> >::Reader virtualMidiDevicesReader_AudioThread;
124 SynchronizedConfig< ArrayList<VirtualMidiDevice*> >::Reader virtualMidiDevicesReader_MidiThread;
125
126 // specialization of RTList that doesn't require the pool
127 // to be provided at construction time
128 template<typename T>
129 class LazyList : public RTList<T> {
130 public:
131 using RTList<T>::allocAppend;
132 using RTList<T>::pPool;
133
134 LazyList() : RTList<T>(0) { }
135 typename RTList<T>::Iterator allocAppend(Pool<T>* pool) {
136 pPool = pool;
137 return allocAppend();
138 }
139 };
140
141 typedef std::map<uint, LazyList<Event>*> ActiveKeyGroupMap;
142 ActiveKeyGroupMap ActiveKeyGroups; ///< Contains event queues for key groups, ordered by key group ID.
143
144 virtual void ResetControllers();
145 virtual void ResetInternal();
146 virtual void RemoveAllFxSends();
147
148 void ImportEvents(uint Samples);
149
150 void AddGroup(uint group);
151 void HandleKeyGroupConflicts(uint KeyGroup, Pool<Event>::Iterator& itNoteOnEvent);
152 void ClearGroupEventLists();
153 void DeleteGroupEventLists();
154 };
155
156 } // namespace LinuxSampler
157
158 #endif /* __LS_ABSTRACTENGINECHANNEL_H__ */
159

  ViewVC Help
Powered by ViewVC