1 |
schoenebeck |
889 |
/*************************************************************************** |
2 |
|
|
* * |
3 |
schoenebeck |
1041 |
* Copyright (C) 2005 - 2007 Christian Schoenebeck * |
4 |
schoenebeck |
889 |
* * |
5 |
|
|
* This program is free software; you can redistribute it and/or modify * |
6 |
|
|
* it under the terms of the GNU General Public License as published by * |
7 |
|
|
* the Free Software Foundation; either version 2 of the License, or * |
8 |
|
|
* (at your option) any later version. * |
9 |
|
|
* * |
10 |
|
|
* This program is distributed in the hope that it will be useful, * |
11 |
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of * |
12 |
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
13 |
|
|
* GNU General Public License for more details. * |
14 |
|
|
* * |
15 |
|
|
* You should have received a copy of the GNU General Public License * |
16 |
|
|
* along with this program; if not, write to the Free Software * |
17 |
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, * |
18 |
|
|
* MA 02111-1307 USA * |
19 |
|
|
***************************************************************************/ |
20 |
|
|
|
21 |
|
|
#ifndef __LS_ENGINECHANNEL_H__ |
22 |
|
|
#define __LS_ENGINECHANNEL_H__ |
23 |
|
|
|
24 |
|
|
#include "../drivers/audio/AudioOutputDevice.h" |
25 |
|
|
#include "../drivers/midi/midi.h" |
26 |
|
|
#include "../drivers/midi/MidiInputDevice.h" |
27 |
|
|
#include "../drivers/midi/MidiInputPort.h" |
28 |
|
|
#include "Engine.h" |
29 |
schoenebeck |
1001 |
#include "FxSend.h" |
30 |
schoenebeck |
889 |
|
31 |
|
|
namespace LinuxSampler { |
32 |
|
|
|
33 |
|
|
// just symbol prototyping |
34 |
|
|
class AudioOutputDevice; |
35 |
|
|
class MidiInputPort; |
36 |
schoenebeck |
1001 |
class FxSend; |
37 |
schoenebeck |
889 |
|
38 |
schoenebeck |
1001 |
|
39 |
schoenebeck |
889 |
/** @brief Channel Interface for LinuxSampler Sampler Engines |
40 |
|
|
* |
41 |
|
|
* Every sampler engine can be used on several sampler channels and |
42 |
|
|
* usually the same Engine instance is used on multiple sampler |
43 |
|
|
* channels. For this every sampler engine must also implement a class |
44 |
|
|
* which handles all channel dependant parameters and channel |
45 |
|
|
* dependant execution code. |
46 |
|
|
* |
47 |
|
|
* This abstract base interface class defines all mandatory methods |
48 |
|
|
* which have to be implemented by all engine channel implementations. |
49 |
|
|
*/ |
50 |
|
|
class EngineChannel { |
51 |
|
|
public: |
52 |
|
|
|
53 |
|
|
///////////////////////////////////////////////////////////////// |
54 |
|
|
// abstract methods |
55 |
|
|
// (these have to be implemented by the descendant) |
56 |
|
|
|
57 |
|
|
virtual void PrepareLoadInstrument(const char* FileName, uint Instrument) = 0; |
58 |
|
|
virtual void LoadInstrument() = 0; |
59 |
|
|
virtual void Reset() = 0; |
60 |
|
|
virtual void SendNoteOn(uint8_t Key, uint8_t Velocity) = 0; |
61 |
schoenebeck |
906 |
virtual void SendNoteOn(uint8_t Key, uint8_t Velocity, int32_t FragmentPos) = 0; |
62 |
schoenebeck |
889 |
virtual void SendNoteOff(uint8_t Key, uint8_t Velocity) = 0; |
63 |
schoenebeck |
906 |
virtual void SendNoteOff(uint8_t Key, uint8_t Velocity, int32_t FragmentPos) = 0; |
64 |
schoenebeck |
889 |
virtual void SendPitchbend(int Pitch) = 0; |
65 |
schoenebeck |
906 |
virtual void SendPitchbend(int Pitch, int32_t FragmentPos) = 0; |
66 |
schoenebeck |
889 |
virtual void SendControlChange(uint8_t Controller, uint8_t Value) = 0; |
67 |
schoenebeck |
906 |
virtual void SendControlChange(uint8_t Controller, uint8_t Value, int32_t FragmentPos) = 0; |
68 |
schoenebeck |
889 |
virtual bool StatusChanged(bool bNewStatus = false) = 0; |
69 |
|
|
virtual float Volume() = 0; |
70 |
|
|
virtual void Volume(float f) = 0; |
71 |
|
|
virtual uint Channels() = 0; |
72 |
|
|
virtual void Connect(AudioOutputDevice* pAudioOut) = 0; |
73 |
|
|
virtual void DisconnectAudioOutputDevice() = 0; |
74 |
schoenebeck |
1001 |
virtual AudioOutputDevice* GetAudioOutputDevice() = 0; |
75 |
schoenebeck |
889 |
virtual void SetOutputChannel(uint EngineAudioChannel, uint AudioDeviceChannel) = 0; |
76 |
|
|
virtual int OutputChannel(uint EngineAudioChannel) = 0; |
77 |
|
|
virtual void Connect(MidiInputPort* pMidiPort, midi_chan_t MidiChannel) = 0; |
78 |
|
|
virtual void DisconnectMidiInputPort() = 0; |
79 |
|
|
virtual MidiInputPort* GetMidiInputPort() = 0; |
80 |
|
|
virtual midi_chan_t MidiChannel() = 0; |
81 |
|
|
virtual String InstrumentFileName() = 0; |
82 |
|
|
virtual String InstrumentName() = 0; |
83 |
|
|
virtual int InstrumentIndex() = 0; |
84 |
|
|
virtual int InstrumentStatus() = 0; |
85 |
|
|
virtual Engine* GetEngine() = 0; |
86 |
|
|
virtual String EngineName() = 0; |
87 |
schoenebeck |
1001 |
virtual FxSend* AddFxSend(uint8_t MidiCtrl, String Name = "") throw (Exception) = 0; |
88 |
|
|
virtual FxSend* GetFxSend(uint FxSendIndex) = 0; |
89 |
|
|
virtual uint GetFxSendCount() = 0; |
90 |
|
|
virtual void RemoveFxSend(FxSend* pFxSend) = 0; |
91 |
schoenebeck |
889 |
|
92 |
schoenebeck |
1001 |
|
93 |
|
|
///////////////////////////////////////////////////////////////// |
94 |
|
|
// normal methods |
95 |
|
|
// (usually not to be overridden by descendant) |
96 |
|
|
|
97 |
schoenebeck |
889 |
/** |
98 |
|
|
* Sets the mute state of this channel. |
99 |
|
|
* |
100 |
|
|
* @param state - specifies the mute state of this sampler channel. |
101 |
|
|
* @throws Exception - if state does not contain valid |
102 |
|
|
* value. |
103 |
|
|
*/ |
104 |
|
|
void SetMute(int state) throw (Exception); |
105 |
|
|
|
106 |
|
|
/** |
107 |
|
|
* Determines whether this channel is muted. |
108 |
|
|
* |
109 |
|
|
* @returns 1 if the channel is muted, 0 if the channel is not muted |
110 |
|
|
* and -1 if the channel is muted because of presence of at least |
111 |
|
|
* one solo channel. |
112 |
|
|
*/ |
113 |
|
|
int GetMute(); |
114 |
|
|
|
115 |
|
|
/** |
116 |
|
|
* Sets the solo state of this channel. |
117 |
|
|
* |
118 |
|
|
* @param solo - specifies whether this is a solo channel. |
119 |
|
|
*/ |
120 |
|
|
void SetSolo(bool solo); |
121 |
|
|
|
122 |
|
|
/** |
123 |
|
|
* Determines whether this is a solo channel. |
124 |
|
|
* |
125 |
|
|
* @returns true if this is a solo channel, false otherwise. |
126 |
|
|
*/ |
127 |
|
|
bool GetSolo(); |
128 |
|
|
|
129 |
schoenebeck |
947 |
/** |
130 |
|
|
* Returns current MIDI program (change) number of this |
131 |
|
|
* EngineChannel. |
132 |
|
|
*/ |
133 |
|
|
uint8_t GetMidiProgram(); |
134 |
|
|
|
135 |
|
|
/** |
136 |
|
|
* Change EngineChannel's MIDI program. |
137 |
|
|
*/ |
138 |
|
|
void SetMidiProgram(uint8_t Program); |
139 |
|
|
|
140 |
|
|
/** |
141 |
|
|
* Returns current MIDI bank MSB (coarse) number of this |
142 |
|
|
* EngineChannel. |
143 |
|
|
*/ |
144 |
|
|
uint8_t GetMidiBankMsb(); |
145 |
|
|
|
146 |
|
|
/** |
147 |
|
|
* Change current MIDI bank MSB (coarse) number of this |
148 |
|
|
* EngineChannel. |
149 |
|
|
*/ |
150 |
|
|
void SetMidiBankMsb(uint8_t BankMSB); |
151 |
|
|
|
152 |
|
|
/** |
153 |
|
|
* Returns current MIDI bank LSB (fine) number of this |
154 |
|
|
* EngineChannel. |
155 |
|
|
*/ |
156 |
|
|
uint8_t GetMidiBankLsb(); |
157 |
|
|
|
158 |
|
|
/** |
159 |
|
|
* Change current MIDI bank LSB (fine) number of this |
160 |
|
|
* EngineChannel. |
161 |
|
|
*/ |
162 |
|
|
void SetMidiBankLsb(uint8_t BankLSB); |
163 |
|
|
|
164 |
schoenebeck |
973 |
/** |
165 |
|
|
* Returns true if this EngineChannel is using no MIDI |
166 |
|
|
* instrument map at all, that is if it will ignore all MIDI |
167 |
|
|
* program change messages. |
168 |
|
|
* |
169 |
|
|
* @see UsesDefaultMidiInstrumentMap() |
170 |
|
|
* @see GetMidiInstrumentMap() |
171 |
|
|
*/ |
172 |
|
|
bool UsesNoMidiInstrumentMap(); |
173 |
|
|
|
174 |
|
|
/** |
175 |
|
|
* Returns true if this EngineChannel is using the default MIDI |
176 |
|
|
* instrument map for handling MIDI program changes. |
177 |
|
|
* |
178 |
|
|
* @see UsesNoMidiInstrumentMap() |
179 |
|
|
* @see GetMidiInstrumentMap() |
180 |
|
|
*/ |
181 |
|
|
bool UsesDefaultMidiInstrumentMap(); |
182 |
|
|
|
183 |
|
|
/** |
184 |
|
|
* Returns ID of the MIDI instrument map currently used by this |
185 |
|
|
* EngineChannel to handle MIDI program changes. You should |
186 |
|
|
* always call @c UsesNoMidiInstrumentMap() and |
187 |
|
|
* @c UsesDefaultMidiInstrumentMap() before calling this method |
188 |
|
|
* to check if this EngineChannel is probably using the default |
189 |
|
|
* map or no map at all, because in these two particular cases |
190 |
|
|
* this method would throw an exception! |
191 |
|
|
* |
192 |
|
|
* @throws Exception - if EngineChannel is set to no map at all |
193 |
|
|
* or is set to the default map |
194 |
|
|
* @see UsesNoMidiInstrumentMap() |
195 |
|
|
* @see UsesDefaultMidiInstrumentMap() |
196 |
|
|
*/ |
197 |
|
|
int GetMidiInstrumentMap() throw (Exception); |
198 |
|
|
|
199 |
|
|
/** |
200 |
|
|
* Let this EngineChannel use no MIDI instrument map at all, |
201 |
|
|
* that is to let it ignore all MIDI program change messages. |
202 |
|
|
* |
203 |
|
|
* @see SetMidiInstrumentMapToDefault() |
204 |
|
|
* @see SetMidiInstrumentMap() |
205 |
|
|
*/ |
206 |
|
|
void SetMidiInstrumentMapToNone(); |
207 |
|
|
|
208 |
|
|
/** |
209 |
|
|
* Let this EngineChannel use the default MIDI instrument map to |
210 |
|
|
* handle MIDI program changes. |
211 |
|
|
* |
212 |
|
|
* @see SetMidiInstrumentMapToNone() |
213 |
|
|
* @see SetMidiInstrumentMap() |
214 |
|
|
*/ |
215 |
|
|
void SetMidiInstrumentMapToDefault(); |
216 |
|
|
|
217 |
|
|
/** |
218 |
|
|
* Set a specific MIDI instrument map this EngineChannel should |
219 |
|
|
* use to handle MIDI program changes. |
220 |
|
|
* |
221 |
|
|
* @see SetMidiInstrumentMapToNone() |
222 |
|
|
* @see SetMidiInstrumentMapToDefault() |
223 |
|
|
* |
224 |
|
|
* @throws Exception - in case given map does not exist |
225 |
|
|
*/ |
226 |
|
|
void SetMidiInstrumentMap(int MidiMap) throw (Exception); |
227 |
|
|
|
228 |
schoenebeck |
1041 |
/** |
229 |
|
|
* Set MIDI Registered Parameter Number (RPN) Controller |
230 |
|
|
* (upper 8 bits / coarse). |
231 |
|
|
*/ |
232 |
|
|
void SetMidiRpnControllerMsb(uint8_t CtrlMSB); |
233 |
|
|
|
234 |
|
|
/** |
235 |
|
|
* Set MIDI Registered Parameter Number (RPN) Controller |
236 |
|
|
* (lower 8 bits / fine). |
237 |
|
|
*/ |
238 |
|
|
void SetMidiRpnControllerLsb(uint8_t CtrlLSB); |
239 |
|
|
|
240 |
|
|
/** |
241 |
|
|
* Get currently selected MIDI Registered Parameter Number |
242 |
|
|
* (RPN) Controller, this method will return the already merged |
243 |
|
|
* value (MSB and LSB value). |
244 |
|
|
*/ |
245 |
|
|
int GetMidiRpnController(); |
246 |
|
|
|
247 |
schoenebeck |
889 |
int iSamplerChannelIndex; ///< FIXME: nasty hack, might be removed (should be 'virtual EngineChannel* EngineChannel() = 0;', but due to cyclic dependencies only a void* solution would be possible ATM) |
248 |
|
|
|
249 |
|
|
protected: |
250 |
schoenebeck |
906 |
EngineChannel(); |
251 |
schoenebeck |
889 |
virtual ~EngineChannel() {}; // MUST only be destroyed by EngineChannelFactory |
252 |
|
|
friend class EngineChannelFactory; |
253 |
|
|
|
254 |
|
|
private: |
255 |
schoenebeck |
947 |
int iMute; |
256 |
|
|
bool bSolo; |
257 |
|
|
uint8_t uiMidiProgram; |
258 |
|
|
uint8_t uiMidiBankMsb; |
259 |
|
|
uint8_t uiMidiBankLsb; |
260 |
schoenebeck |
1041 |
uint8_t uiMidiRpnMsb; ///< MIDI Registered Parameter Number (upper 8 bits / coarse) |
261 |
|
|
uint8_t uiMidiRpnLsb; ///< MIDI Registered Parameter Number (lower 8 bits / fine) |
262 |
schoenebeck |
973 |
bool bMidiBankMsbReceived; |
263 |
|
|
bool bMidiBankLsbReceived; |
264 |
|
|
bool bProgramChangeReceived; |
265 |
|
|
int iMidiInstrumentMap; |
266 |
schoenebeck |
889 |
}; |
267 |
|
|
|
268 |
|
|
} // namespace LinuxSampler |
269 |
|
|
|
270 |
|
|
#endif // __LS_ENGINECHANNEL_H__ |