/[svn]/linuxsampler/trunk/src/drivers/midi/MidiInputPort.h
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Annotation of /linuxsampler/trunk/src/drivers/midi/MidiInputPort.h

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Fri Mar 1 23:00:17 2013 UTC (11 years ago) by schoenebeck
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File size: 18726 byte(s)
* MIDI drivers: Implemented missing handling of MIDI "running status".
* MME driver: pass time stamps to the sampler.

1 schoenebeck 221 /***************************************************************************
2     * *
3     * LinuxSampler - modular, streaming capable sampler *
4     * *
5     * Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck *
6 schoenebeck 2426 * Copyright (C) 2005 - 2013 Christian Schoenebeck *
7 schoenebeck 221 * *
8     * This program is free software; you can redistribute it and/or modify *
9     * it under the terms of the GNU General Public License as published by *
10     * the Free Software Foundation; either version 2 of the License, or *
11     * (at your option) any later version. *
12     * *
13     * This program is distributed in the hope that it will be useful, *
14     * but WITHOUT ANY WARRANTY; without even the implied warranty of *
15     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
16     * GNU General Public License for more details. *
17     * *
18     * You should have received a copy of the GNU General Public License *
19     * along with this program; if not, write to the Free Software *
20     * Foundation, Inc., 59 Temple Place, Suite 330, Boston, *
21     * MA 02111-1307 USA *
22     ***************************************************************************/
23    
24     #ifndef __LS_MIDIINPUTPORT_H__
25     #define __LS_MIDIINPUTPORT_H__
26    
27     #include "../../common/global.h"
28 schoenebeck 551 #include "../../common/Mutex.h"
29 schoenebeck 880 #include "../../common/Exception.h"
30 schoenebeck 221 #include "../DeviceParameter.h"
31 schoenebeck 675 #include "midi.h"
32 schoenebeck 221 #include "MidiInputDevice.h"
33 schoenebeck 890 #include "../../engines/EngineChannel.h"
34 persson 840 #include "../../common/SynchronizedConfig.h"
35 schoenebeck 221
36     namespace LinuxSampler {
37    
38     // just symbol prototyping
39     class MidiInputDevice;
40 schoenebeck 675 class EngineChannel;
41 schoenebeck 1695 class VirtualMidiDevice;
42 schoenebeck 221
43     class MidiInputPort {
44     public:
45    
46     /////////////////////////////////////////////////////////////////
47     // type definitions
48    
49     /** MIDI Port Parameter 'NAME'
50     *
51     * Used to assign an arbitrary name to the MIDI port.
52     */
53     class ParameterName : public DeviceRuntimeParameterString {
54     public:
55     ParameterName(MidiInputPort* pPort);
56     ParameterName(MidiInputPort* pPort, String val);
57     virtual String Description();
58     virtual bool Fix();
59     virtual std::vector<String> PossibilitiesAsString();
60 schoenebeck 880 virtual void OnSetValue(String s) throw (Exception);
61 schoenebeck 221 protected:
62     MidiInputPort* pPort;
63     };
64    
65    
66    
67     /////////////////////////////////////////////////////////////////
68     // normal methods
69     // (usually not to be overriden by descendant)
70    
71     /**
72 schoenebeck 1424 * Connect given sampler engine channel with this MIDI input
73     * device. The engine channel can either be connected to one
74     * specific MIDI channel or all MIDI channels. If an engine
75     * channel gets connected twice to this MIDI input device, then
76     * the engine's old connection will be detached (no matter on
77     * which MIDI channel).
78 schoenebeck 221 *
79 schoenebeck 1424 * @param pEngineChannel - sampler engine
80 schoenebeck 221 * @param MidiChannel - MIDI channel to connect to
81     * @throws MidiInputException if MidiChannel argument invalid
82     */
83 schoenebeck 411 void Connect(EngineChannel* pEngineChannel, midi_chan_t MidiChannel);
84 schoenebeck 221
85     /**
86 schoenebeck 1424 * Disconnect given sampler engine channel from this MIDI input
87     * device. If the given engine channel was not connected with
88     * this device, nothing happens.
89 schoenebeck 221 *
90 schoenebeck 1424 * @param pEngineChannel - sampler engine
91 schoenebeck 221 */
92 schoenebeck 411 void Disconnect(EngineChannel* pEngineChannel);
93 schoenebeck 221
94     /**
95     * Return MIDI device where this MIDI port belongs to.
96     */
97     MidiInputDevice* GetDevice();
98    
99     /**
100     * Return port number with which this MIDI port is registered to
101     * the MIDI device.
102     */
103     uint GetPortNumber();
104    
105     /**
106     * Return all parameter settings of this MIDI port.
107     */
108     std::map<String,DeviceRuntimeParameter*> PortParameters();
109    
110 persson 846 /**
111     * Registers that an engine wants to have sysex messages.
112     */
113     static void AddSysexListener(Engine* engine);
114 schoenebeck 221
115 persson 846 /**
116     * Removes engine from list of engines getting sysex
117     * messages.
118     *
119     * @returns true if engine was removed, false if it wasn't
120     * present in the list.
121     */
122     static bool RemoveSysexListener(Engine* engine);
123 schoenebeck 221
124 schoenebeck 1695 /**
125     * Connects the given virtual MIDI device to this MIDI input
126     * device. This can be used to listen to MIDI data arriving on
127     * the MIDI input device's MIDI ports, e.g. to show an MIDI
128     * activity indicator somewhere.
129     */
130     void Connect(VirtualMidiDevice* pDevice);
131 schoenebeck 221
132 schoenebeck 1695 /**
133     * Disconnect the previously connected virtual MIDI device.
134     */
135     void Disconnect(VirtualMidiDevice* pDevice);
136 schoenebeck 2380
137     /**
138     * Registers the given @a filter to be applied against all note on
139     * events, adjusting their MIDI velocity data. The vector supplied
140     * here must exactly be either of size 128 or 0. In case the given
141     * vector is of size 128, it will be used as lookup table by this
142     * MIDI inpurt port to remap any incoming MIDI note on velocity
143     * data to the respective value in that vector, or exactly:
144     * @code
145     * velocity = filter[velocity];
146     * @endcode
147     * Accordingly the values in the vector have to be in the range
148     * 0..127, however note that a value 0 should actually never be
149     * used, since by MIDI specification, a note on with velocity 0 is
150     * interpreted as note off event instead!
151     *
152     * If a vector of size 0 is supplied, this note on velocity filter
153     * mechanism will be disabled.
154     *
155     * @param filter - lookup table in the format described above
156     * @throws MidiInputException - if filter is in invalid format
157     */
158     void SetNoteOnVelocityFilter(const std::vector<uint8_t>& filter);
159 schoenebeck 1695
160    
161 schoenebeck 221 /////////////////////////////////////////////////////////////////
162     // dispatch methods
163     // (should be called by the MidiInputDevice descendant on events)
164    
165     /**
166     * Should be called by the implementing MIDI input device
167     * whenever a note on event arrived, this will cause the note on
168     * event to be forwarded to all connected engines on the
169     * corresponding MIDI channel.
170     *
171 schoenebeck 906 * This method is meant for realtime rendering, this way an event
172     * is immediately created with the current system time as time
173     * stamp.
174     *
175 schoenebeck 221 * @param Key - MIDI key number of the triggered key
176     * @param Velocity - MIDI velocity of the triggered key
177     * @param MidiChannel - MIDI channel on which event occured on
178 schoenebeck 274 * (low level indexing, means 0..15)
179 schoenebeck 221 */
180     void DispatchNoteOn(uint8_t Key, uint8_t Velocity, uint MidiChannel);
181    
182     /**
183     * Should be called by the implementing MIDI input device
184 schoenebeck 906 * whenever a note on event arrived, this will cause the note on
185     * event to be forwarded to all connected engines on the
186     * corresponding MIDI channel.
187     *
188     * This method is meant for offline rendering and / or in case the
189     * exact fragment position of the event is already known.
190     *
191     * @param Key - MIDI key number of the triggered key
192     * @param Velocity - MIDI velocity of the triggered key
193     * @param MidiChannel - MIDI channel on which event occured on
194     * (low level indexing, means 0..15)
195     * @param FragmentPos - event's sample point position in the
196     * current audio fragment
197     */
198     void DispatchNoteOn(uint8_t Key, uint8_t Velocity, uint MidiChannel, int32_t FragmentPos);
199    
200     /**
201     * Should be called by the implementing MIDI input device
202 schoenebeck 221 * whenever a note off event arrived, this will cause the note
203     * off event to be forwarded to all connected engines on the
204     * corresponding MIDI channel.
205     *
206 schoenebeck 906 * This method is meant for realtime rendering, this way an event
207     * is immediately created with the current system time as time
208     * stamp.
209     *
210 schoenebeck 221 * @param Key - MIDI key number of the released key
211     * @param Velocity - MIDI velocity of the released key
212     * @param MidiChannel - MIDI channel on which event occured on
213 schoenebeck 274 * (low level indexing, means 0..15)
214 schoenebeck 221 */
215     void DispatchNoteOff(uint8_t Key, uint8_t Velocity, uint MidiChannel);
216    
217     /**
218     * Should be called by the implementing MIDI input device
219 schoenebeck 906 * whenever a note off event arrived, this will cause the note
220     * off event to be forwarded to all connected engines on the
221     * corresponding MIDI channel.
222     *
223     * This method is meant for offline rendering and / or in case the
224     * exact fragment position of the event is already known.
225     *
226     * @param Key - MIDI key number of the released key
227     * @param Velocity - MIDI velocity of the released key
228     * @param MidiChannel - MIDI channel on which event occured on
229     * (low level indexing, means 0..15)
230     * @param FragmentPos - event's sample point position in the
231     * current audio fragment
232     */
233     void DispatchNoteOff(uint8_t Key, uint8_t Velocity, uint MidiChannel, int32_t FragmentPos);
234    
235     /**
236     * Should be called by the implementing MIDI input device
237 schoenebeck 221 * whenever a pitchbend event arrived, this will cause the
238     * pitchbend event to be forwarded to all connected engines.
239     *
240 schoenebeck 906 * This method is meant for realtime rendering, this way an event
241     * is immediately created with the current system time as time
242     * stamp.
243     *
244 schoenebeck 221 * @param Pitch - MIDI pitch value
245     * @param MidiChannel - MIDI channel on which event occured on
246 schoenebeck 274 * (low level indexing, means 0..15)
247 schoenebeck 221 */
248     void DispatchPitchbend(int Pitch, uint MidiChannel);
249    
250     /**
251     * Should be called by the implementing MIDI input device
252 schoenebeck 906 * whenever a pitchbend event arrived, this will cause the
253     * pitchbend event to be forwarded to all connected engines.
254     *
255     * This method is meant for offline rendering and / or in case the
256     * exact fragment position of the event is already known.
257     *
258     * @param Pitch - MIDI pitch value
259     * @param MidiChannel - MIDI channel on which event occured on
260     * (low level indexing, means 0..15)
261     * @param FragmentPos - event's sample point position in the
262     * current audio fragment
263     */
264     void DispatchPitchbend(int Pitch, uint MidiChannel, int32_t FragmentPos);
265    
266     /**
267     * Should be called by the implementing MIDI input device
268 schoenebeck 221 * whenever a control change event arrived, this will cause the
269     * control change event to be forwarded to all engines on the
270     * corresponding MIDI channel.
271     *
272 schoenebeck 906 * This method is meant for realtime rendering, this way an event
273     * is immediately created with the current system time as time
274     * stamp.
275     *
276 schoenebeck 221 * @param Controller - MIDI controller number
277     * @param Value - MIDI control change value
278     * @param MidiChannel - MIDI channel on which event occured on
279 schoenebeck 274 * (low level indexing, means 0..15)
280 schoenebeck 221 */
281     void DispatchControlChange(uint8_t Controller, uint8_t Value, uint MidiChannel);
282    
283 schoenebeck 244 /**
284     * Should be called by the implementing MIDI input device
285 schoenebeck 906 * whenever a control change event arrived, this will cause the
286     * control change event to be forwarded to all engines on the
287     * corresponding MIDI channel.
288     *
289     * This method is meant for offline rendering and / or in case the
290     * exact fragment position of the event is already known.
291     *
292     * @param Controller - MIDI controller number
293     * @param Value - MIDI control change value
294     * @param MidiChannel - MIDI channel on which event occured on
295     * (low level indexing, means 0..15)
296     * @param FragmentPos - event's sample point position in the
297     * current audio fragment
298     */
299     void DispatchControlChange(uint8_t Controller, uint8_t Value, uint MidiChannel, int32_t FragmentPos);
300    
301     /**
302     * Should be called by the implementing MIDI input device
303 schoenebeck 1721 * whenever a program change event arrived. In case the
304     * respective sampler channel(s) are enabled for MIDI
305     * instrument mapping, the respective sampler engine and
306     * instrument will be loaded on the connected sampler
307     * channel(s) as defined by the respective entry in the
308     * MIDI instrument map.
309 schoenebeck 551 *
310 schoenebeck 1721 * @e Note: the MIDI instrument map is empty by default on
311     * sampler startup. It has to be explicitly filled with
312     * entries and the sampler channel(s) have to be enabled for
313     * a certain MIDI instrument table, otherwise program change
314     * messages are ignored!
315 schoenebeck 551 *
316 schoenebeck 1721 * @param Program - MIDI program change number
317     * @param MidiChannel - MIDI channel on which this program
318     * change occured
319     * @see MidiInstrumentMapper
320 schoenebeck 551 */
321     void DispatchProgramChange(uint8_t Program, uint MidiChannel);
322    
323 schoenebeck 947 void DispatchBankSelectMsb(uint8_t BankMsb, uint MidiChannel);
324    
325     void DispatchBankSelectLsb(uint8_t BankLsb, uint MidiChannel);
326    
327 schoenebeck 551 /**
328     * Should be called by the implementing MIDI input device
329 schoenebeck 244 * whenever a system exclusive message arrived, this will cause
330     * the message to be forwarded to all connected engines.
331     *
332     * @param pData - pointer to the sysex data
333     * @param Size - length of the sysex data (in bytes)
334     */
335     void DispatchSysex(void* pData, uint Size);
336    
337 persson 1765 /**
338     * Helper function for MIDI input devices that have the
339     * MIDI data as raw bytes.
340     *
341 schoenebeck 2426 * @param pData - pointer to the raw MIDI data
342 persson 1887 */
343     void DispatchRaw(uint8_t* pData);
344    
345     /**
346     * Helper function for MIDI input devices that have the
347     * MIDI data as raw bytes.
348     *
349     * @param pData - pointer to the raw MIDI data
350 persson 1765 * @param FragmentPos - event's sample point position in the
351     * current audio fragment
352     */
353     void DispatchRaw(uint8_t* pData, int32_t FragmentPos);
354    
355 schoenebeck 221 protected:
356     MidiInputDevice* pDevice;
357     int portNumber;
358     std::map<String,DeviceRuntimeParameter*> Parameters; ///< All port parameters.
359 persson 840 typedef std::set<EngineChannel*> MidiChannelMap_t[17];
360     SynchronizedConfig<MidiChannelMap_t> MidiChannelMap; ///< Contains the list of connected engines for each MIDI channel, where index 0 points to the list of engines which are connected to all MIDI channels. Usually it's not necessary for the descendant to use this map, instead it should just use the Dispatch* methods.
361 persson 846 SynchronizedConfig<MidiChannelMap_t>::Reader MidiChannelMapReader; ///< MIDI thread access to MidiChannelMap
362 schoenebeck 551 Mutex MidiChannelMapMutex; ///< Used to protect the MidiChannelMap from being used at the same time by different threads.
363 persson 846 SynchronizedConfig<std::set<Engine*> >::Reader SysexListenersReader; ///< MIDI thread access to SysexListeners
364 schoenebeck 1695 SynchronizedConfig<std::vector<VirtualMidiDevice*> > virtualMidiDevices;
365     SynchronizedConfig<std::vector<VirtualMidiDevice*> >::Reader virtualMidiDevicesReader;
366     Mutex virtualMidiDevicesMutex;
367 schoenebeck 2380 SynchronizedConfig<std::vector<uint8_t> > noteOnVelocityFilter;
368     SynchronizedConfig<std::vector<uint8_t> >::Reader noteOnVelocityFilterReader;
369     Mutex noteOnVelocityFilterMutex;
370 schoenebeck 2426 uint8_t runningStatusBuf[3];
371 schoenebeck 221
372     /**
373     * Constructor
374     */
375     MidiInputPort(MidiInputDevice* pDevice, int portNumber);
376    
377     /**
378     * Destructor
379     */
380     virtual ~MidiInputPort();
381    
382     friend class MidiInputDevice;
383 schoenebeck 675
384 schoenebeck 2426 private:
385 persson 846 static SynchronizedConfig<std::set<Engine*> > SysexListeners; ///< All engines that are listening to sysex messages.
386 schoenebeck 2426
387     uint8_t* handleRunningStatus(uint8_t* pData);
388 schoenebeck 221 };
389    
390     } // namsepace LinuxSampler
391    
392     #endif // __LS_MIDIINPUTPORT_H__

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